TWI771115B - Light emitting device array circuit capable of reducing ghost image and driver circuit and control method thereof - Google Patents

Abstract

A light emitting device array circuit capable of reducing ghost image includes: a light emitting device array, plural scanning line switch circuits, and a driver circuit. The light emitting device array includes plural light emitting devices which are arranged in plural scan lines and plural data lines. In a frame, plural scan line switch circuits electrically connect plural scan nodes respectively to a scan conductive voltage in turn without overlapping according to a sequence of the plural scan lines. Data line buffer circuits of the driver circuit are configured to operably provide or not provide predetermined dimming levels for corresponding data nodes respectively according to data operation signals. A pre-discharge control amplifier circuit of the driver circuit is coupled to plural scan nodes, wherein the pre-discharge control amplifier circuit is configured to operably provide a pre-discharge level for at least one predetermined scan node during a predetermined pre-discharge period according to a pre-discharge signal.

Description

Light-emitting element array circuit, driving circuit and control method thereof capable of reducing ghosting

The present invention relates to a light-emitting element array circuit, a driving circuit and a control method thereof, in particular to a light-emitting element array circuit, a driving circuit and a control method thereof which can reduce ghost images.

FIG. 1A shows a schematic diagram of a prior art light emitting diode (LED) array circuit 100 . As shown in FIG. 1A , the LED array circuit 100 includes an LED array 110 , a plurality of scan line switch circuits 120 and a plurality of data line buffer circuits 130 . The LED array 110 includes a plurality of LED elements arranged in a plurality of scan lines N-1, N, N+1, N+2 and a plurality of data lines Ch1, Ch2, Ch3, and Ch4. The basic operation mode of the LED array circuit 100 is to use the scanning mode to sequentially scan the LED array 110 in a frame according to the arrangement sequence of the plurality of scanning lines N-1, N, N+1, and N+2. Different scan lines N-1, N, N+1, N+2 in the , supply a scan-on voltage Vdd, and stop supplying the scan-on voltage Vdd to the scan line before the next scan line is turned on; on the other hand, A predetermined dimming level DIM is supplied to a predetermined data line at an appropriate time, so that a predetermined LED element in the LED array 110 is turned on, thereby displaying a predetermined pattern.

For example, as shown in FIG. 1A , for example, in a certain frame, to light up the LED element A of the data line Ch3 of the scan line N (as shown by the thick dotted box in FIG. 1A ), the scanning operation is performed. The signal controls the scan line switch circuit 120 of the scan line N to be turned on, so as to supply the scan-on voltage Vdd to the scan line N; at the same time, the data line buffer circuit 130 of the data line Ch3 is controlled by the data operation signal DOS to provide a preset dimming level DIM to the data line Ch3, so that the LED conduction current flows through the LED element A of the data line Ch3 of the scan line N, Then, the LED element A is illuminated.

Generally speaking, when the LED array circuit 100 operates normally, there will be a problem of ghost images, and the ghost images are further classified into upper ghost images and lower ghost images. Referring to FIG. 1B , a method for testing ghost images is to use LED elements (diagonals formed by white circles) on an oblique line in the LED array 110 (illustrated by the array formed by the circles in FIG. 1B ) on an oblique line. line) to test whether the LED array 110 has ghost images. In the test, the LED elements on the diagonal line above the LED elements on the diagonal line (indicated by the diagonal line formed by the gray circle in FIG. 1B ) also emit a slight brightness, which is called upper ghosting. The upper ghost phenomenon is caused by the parasitic capacitance Cr in the scan line switch circuit 120 . To explain this phenomenon, please refer to FIG. 1A . For example, in the aforementioned test, the scan operation signal causes each scan line switch circuit 120 to supply the scan-on voltage Vdd to the scan line N−1, the scan line N, the scan line N+1 and the scan line N+1 in sequence. The scan line N+2, and the data operation signal DOS also causes each data line buffer circuit 130 to provide the preset dimming level DIM to the corresponding data line Ch4, data line Ch3, data line Ch2, and data line Ch1 in sequence, so as to The sequential lighting coordinates are located at the four LED elements corresponding to the scan line N-1 data line Ch4, the scan line N data line Ch3, the scan line N+1 data line Ch2 and the scan line N+2 data line Ch1.

For example, after the scan line switch circuit 120 of the scan line N-1 finishes supplying the scan-on voltage Vdd to the scan line N-1, because the parasitic capacitance Cr in the scan line switch circuit 120 corresponding to the scan line N-1 still exists There is a charging effect of electric charge, so that when the scan operation signal controls the scan line switch circuit 120 of the scan line N to supply the scan-on voltage Vdd to the scan line N, and the data operation signal DOS controls the data line buffer circuit 130 of the data line Ch3 to supply the pre- When the dimming level DIM is set to the data line Ch3, the charge in the parasitic capacitor Cr in the scan line switch circuit 120 of the scan line N-1 releases the voltage from the path indicated by the broken line arrow in the figure, which is still enough to light up the coordinates at the scan line. The LED elements on the line N-1 data line Ch3, and so on, produce the upper ghost as indicated by the ellipse dotted line in FIG. 1B.

Please refer to FIG. 1D . In the aforementioned test, the LED elements located on the diagonal line below the LED elements on the diagonal line (indicated by the diagonal line formed by the gray circle in FIG. 1D ) also emit a slight brightness. This phenomenon Called the lower ghost. The cause of the lower ghost phenomenon is the parasitic capacitance Cc in the data line buffer circuit 130 . To explain this phenomenon, please refer to FIGS. 1C and 1D. For example, in the above test, the scan operation signal causes each scan line switch circuit 120 to supply the scan-on voltage Vdd to the scan line N-1, the scan line N, and the scan line N+ in sequence. 1 and scan line N+2, and the data operation signal DOS also causes each data line buffer circuit 130 to provide the default dimming level to allow the corresponding data line Ch4, data line Ch3, data line Ch2, and data line Ch1 in sequence, so as to The sequential lighting coordinates are located at the four LED elements of the scan line N-1 data line Ch4, the scan line N data line Ch3, the scan line N+1 data line Ch2 and the scan line N+2 data line Ch1.

For example, when the LED element A finishes lighting, the data line buffer circuit 130 of the data line Ch3 finishes supplying the default dimming level DIM to the data line Ch3, due to the parasitic in the data line buffer circuit 130 corresponding to the data line Ch3 The capacitor Cc still has the charging effect of electric charge, so that when the data line buffer circuit 130 of the data line Ch2 supplies the preset dimming level DIM to the data line Ch2, and the scan line switch circuit 120 of the scan line N+1 supplies When the scan-on voltage Vdd is applied to the scan line N+1, as shown in FIG. 1C , a parasitic parasitic is formed from the scan line switch circuit 120 of the scan line N+1 through the LED of the data line Ch3 to the data line buffer circuit 130 of the data line Ch3 as shown in FIG. 1C . The charging path formed by the capacitor Cc (indicated by the broken line arrow in Figure 1C) is still sufficient to turn on the LED element located at the scan line N+1 data line Ch3 during the charging process, and so on, resulting in Figure 1D , the lower ghost indicated by the dotted ellipse.

In view of this, the present invention addresses the above-mentioned shortcomings of the prior art, and provides a light-emitting element array circuit, a driving circuit and a control method thereof that can reduce ghosting.

In one aspect, the present invention provides a light-emitting element array circuit that can reduce ghosting, comprising: a light-emitting element array, including a plurality of light-emitting elements, arranged as a plurality of scan lines and a plurality of data lines, wherein , the forward ends of the plurality of light-emitting elements in each scan line are commonly coupled to a scan node, and the reverse ends of the plurality of light-emitting elements in each data line are commonly coupled to a data node; the plurality of scanning Line switch circuits are respectively coupled to a plurality of the scan nodes, and the plurality of scan line switch circuits, in a frame, in accordance with the arrangement order of the plurality of scan lines, alternately and non-overlapping the corresponding scan nodes. connected to a scan-on voltage; and a driving circuit, comprising: a plurality of data line buffer circuits, respectively coupled to a plurality of the data nodes, the data line buffer circuits are used for providing or not providing a data operation signal according to a data operation signal a preset dimming bit is allowed to correspond to the data node; and a pre-discharge control circuit, respectively coupled to the plurality of scan nodes, is used for setting a pre-discharge bit during a predetermined pre-discharge period according to a pre-discharge signal permitting to be provided to the preset at least one of the scan nodes; wherein the data line buffer circuit switches from providing the data node corresponding to the default dimming level permission to not providing the data node corresponding to the default dimming level permission, The data line buffer circuit corresponding to the light-emitting element to be lit in the scan line of the next order changes from not providing the data node corresponding to the default dimming level to the corresponding data node to provide the default dimming level. There is a deadtime between the data nodes; wherein the predetermined pre-discharge period is related to the deadtime.

From another point of view, the present invention also provides a light-emitting element array circuit that can reduce ghosting, including: a light-emitting element array, including a plurality of light-emitting elements, arranged as a plurality of scan lines and a plurality of data lines, Wherein, the forward ends of the plurality of light-emitting elements in each scan line are commonly coupled to a scan node, and the reverse ends of the plurality of light-emitting elements in each data line are commonly coupled to a data node; Scan line switch circuits are respectively coupled to a plurality of the scan nodes, and the plurality of scan line switch circuits correspond to the scan nodes in turn and without overlapping in a frame according to the arrangement order of the plurality of scan lines electrically connected to a scan-on voltage; and a driving circuit including: a plurality of data line buffer circuits, respectively connected to a plurality of the data nodes Correspondingly coupled, the data line buffer circuit is used for providing or not providing a preset dimming level grant to the corresponding data node according to a data operation signal; and a precharge control amplifier circuit, respectively associated with the plurality of data nodes is coupled to provide a pre-charge level to at least one of the predetermined data nodes in a predetermined pre-charge period according to a pre-charge signal; wherein the data line buffer circuit self-provides the predetermined dimming The data node corresponding to the bit grant is turned to not provide the data node corresponding to the default dimming bit grant, and the data line buffer circuit corresponding to the light-emitting element to be lit in the scan line in the next sequence is automatically disabled. There is a deadtime between the data node corresponding to the provision of the preset dimming level grant and the data node corresponding to the provision of the preset dimming level grant; wherein the preset precharge period is related to the gap time.

From another point of view, the present invention also provides a driving circuit for a light-emitting element array circuit capable of reducing ghosting, for controlling a light-emitting element array, wherein the light-emitting element array includes a plurality of light-emitting elements arranged as a plurality of scan lines. line) and a plurality of data lines, wherein the forward ends of the plurality of light-emitting elements in each scan line are commonly coupled to a scan node, and the plurality of light-emitting elements in each data line are between the light-emitting elements The reverse ends are commonly coupled to a data node; wherein the plurality of scan nodes are correspondingly coupled to a plurality of scan line switch circuits, and the plurality of scan line switch circuits are arranged in a frame (frame) according to the sequence of the plurality of scan lines, The corresponding scan nodes are electrically connected to a scan-on voltage in turn and without overlapping; the driving circuit of the light-emitting element array circuit capable of reducing ghosting includes: a plurality of data line buffer circuits, respectively coupled to the plurality of data nodes correspondingly, The data line buffer circuit is used for providing or not providing a preset dimming level grant to the corresponding data node according to a data operation signal; and a pre-discharge control circuit, respectively coupled to the plurality of scan nodes, used for According to a pre-discharge signal, during a predetermined pre-discharge period, a pre-discharge level is provided to the predetermined at least one scan node; wherein the data line buffer circuit provides the predetermined dimming level corresponding to the The data node is changed to not provide the data node corresponding to the preset dimming bit grant, and the data line buffer circuit corresponding to the light-emitting element to be lit in the scan line of the next sequence is not mentioned. There is a dead time between the data node corresponding to the preset dimming level grant and the data node corresponding to the preset dimming level grant; wherein the preset pre-discharge period is related to at this gap time.

From another point of view, the present invention also provides a driving circuit for a light-emitting element array circuit capable of reducing ghosting, for controlling a light-emitting element array, wherein the light-emitting element array includes a plurality of light-emitting elements arranged as a plurality of scan lines. line) and a plurality of data lines, wherein the forward ends of the plurality of light-emitting elements in each scan line are commonly coupled to a scan node, and the plurality of light-emitting elements in each data line are between the light-emitting elements The reverse ends are commonly coupled to a data node; wherein the plurality of scan nodes are correspondingly coupled to a plurality of scan line switch circuits, and the plurality of scan line switch circuits are arranged in a frame (frame) according to the sequence of the plurality of scan lines, The corresponding scan nodes are electrically connected to a scan-on voltage in turn and without overlapping; the driving circuit of the light-emitting element array circuit capable of reducing ghosting includes: a plurality of data line buffer circuits, respectively coupled to the plurality of data nodes correspondingly, The data line buffer circuit is used for providing or not providing a preset dimming level grant to the corresponding data node according to a data operation signal; and a precharge control amplifying circuit, respectively coupled to a plurality of the data nodes for according to a precharge signal, during a preset precharge period, a precharge level is provided to the preset at least one of the data nodes; wherein the data line buffer circuit provides the preset dimming level corresponding to the The data node is changed to not provide the data node corresponding to the default dimming level grant, and the data line buffer circuit corresponding to the light-emitting element to be lit in the scan line of the next order will not provide the default There is a dead time between the data node corresponding to the dimming level grant and the data node corresponding to providing the preset dimming level grant; wherein the preset precharge period is related to the dead time time.

In a preferred embodiment, the pre-discharge control circuit is in a normal pre-discharge mode, and according to the pre-discharge signal, uses a plurality of the idle times in the frame as a plurality of the predetermined pre-discharge times. a discharge period, and the pre-discharge level is provided to all the scan nodes during a plurality of the predetermined pre-discharge periods.

In a preferred embodiment, the driving circuit further includes: a pixel data storage circuit for storing a pixel data storage signal, and the pixel data storage signal is used to indicate the timing arrangement of lighting the plurality of light-emitting elements; and a An energy-saving pre-discharge adjustment circuit, coupled to the pixel data storage circuit, is used in an energy-saving pre-discharge mode to store a signal according to the pixel data, and in the frame, before lighting the preset light-emitting element The idle time is used as the preset pre-discharge period, and during the preset pre-discharge period, a plurality of pre-discharge switches are respectively controlled to switch the scan line to which the light-emitting element previously lit by the preset light-emitting element belongs. The scan node is electrically connected to the pre-discharge level provided by the pre-discharge control circuit; wherein a plurality of the pre-discharge switches are correspondingly coupled to the plurality of the scan nodes.

In a preferred embodiment, the pre-discharge control circuit is in a first performance pre-discharge mode, according to the pre-discharge signal, for each of the idle time in the frame, and every adjacent time in the frame. A performance time before the idle time is used as the predetermined pre-discharge period, and the pre-discharge level is provided for all the scan nodes during the predetermined pre-discharge period.

In a preferred embodiment, the driving circuit further includes: a pixel data storage circuit for storing a pixel data storage signal, and the pixel data storage signal is used to indicate the timing arrangement of lighting the plurality of light-emitting elements; and a An energy-saving pre-discharge adjustment circuit, coupled to the pixel data storage circuit, is used in a second performance pre-discharge mode to store a signal according to the pixel data, and in the frame, to turn on the preset light-emitting element in the frame. The previous neutral time and the performance time immediately before the neutral time are used as the preset pre-discharge period, and in the preset pre-discharge period, a plurality of pre-discharge switches are respectively controlled to set the preset light-emitting element The scan node of the scan line to which the light-emitting element previously lighted belongs is electrically connected to the pre-discharge level provided by the pre-discharge control circuit; wherein a plurality of the pre-discharge switches are correspondingly coupled to a plurality of the scan nodes .

In a preferred embodiment, the driving circuit further includes a pre-charge control amplifier circuit, which is respectively coupled to the plurality of data nodes, and is used for converting a pre-charge signal to a pre-charge period during a predetermined pre-charge period according to a pre-charge signal. A charging level is provided to a predetermined at least one of the data nodes; wherein the predetermined pre-charging period is related to the idle time.

In a preferred embodiment, the pre-charge control amplifier circuit is in a normal pre-charge mode, and according to the pre-charge signal, a plurality of the idle times in the frame are used as a plurality of the preset pre-charge periods, The precharge level is provided to all the data nodes during a plurality of the predetermined precharge periods.

In a preferred embodiment, the driving circuit further includes: a pixel data storage circuit for storing a pixel data storage signal, and the pixel data storage signal is used to indicate the timing arrangement of lighting the plurality of light-emitting elements; and a An energy-saving precharge adjustment circuit, coupled to the pixel data storage circuit, is used in an energy-saving precharge mode to store a signal according to the pixel data, and in the frame, before lighting the preset light-emitting element The idle time is used as the preset precharge period, and during the preset precharge period, a plurality of precharge switches are respectively controlled to switch the data line to which the light-emitting element previously lit by the preset light-emitting element belongs. The data node is electrically connected to the pre-charge level provided by the pre-charge control amplifying circuit; wherein a plurality of the pre-charge switches are correspondingly coupled to the plurality of the data nodes.

In a preferred embodiment, the pre-charge control amplifier circuit is in a first performance pre-charge mode, according to the pre-charge signal, for each of the idle time in the frame, and in the adjacent frame in the frame A performance time before each of the idle time is used as the predetermined precharge period, and the precharge bit is provided for all the data nodes during the predetermined precharge period.

In a preferred embodiment, the driving circuit further includes: a pixel data storage circuit for storing a pixel data storage signal, and the pixel data storage signal is used to indicate the timing arrangement of lighting the plurality of light-emitting elements; and a An energy-saving precharge adjustment circuit, coupled to the pixel data storage circuit Then, in a second performance pre-charging mode, the signal is stored according to the pixel data, and in the frame, the blank time before and immediately before the blank time before lighting the preset light-emitting element A performance time is used as the preset pre-charge period, and in the preset pre-charge period, a plurality of pre-charge switches are respectively controlled to switch the data line to which the light-emitting element previously lit by the preset light-emitting element belongs to The data node is electrically connected to the pre-charge level provided by the pre-charge control amplifying circuit; wherein a plurality of the pre-charge switches are correspondingly coupled to the plurality of the data nodes.

In a preferred embodiment, the driving circuit further includes a pre-discharge charge sharing control circuit for in a pre-discharge charge sharing mode, in the frame, before lighting the preset light-emitting element During a preceding period of the idle time, a plurality of pre-discharge switches are respectively controlled to separate the scan node of the scan line to which the light-emitting element previously lit by the predetermined light-emitting element belongs to the predetermined light-emitting element. The scan nodes of the scan line are electrically connected to each other to achieve charge sharing between the two scan nodes; wherein a plurality of the pre-discharge switches are correspondingly coupled to a plurality of the scan nodes; wherein the predetermined light-emitting element previously clicked The scanning node of the scanning line to which the bright light-emitting element belongs is provided by a pixel data storage circuit of the driving circuit.

In a preferred embodiment, the driving circuit further includes a pre-charge charge sharing control circuit for in a pre-charge charge sharing mode, in the frame, before lighting the preset light-emitting element During a previous period of the idle time, a plurality of precharge switches are respectively controlled, so as to connect the data node of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs to the preset light-emitting element The data nodes of the data line to which they belong are electrically connected to each other so as to achieve charge sharing between the two data nodes; wherein a plurality of the precharge switches are correspondingly coupled to a plurality of the data nodes; wherein the preset light-emitting element previously clicked The data node of the data line to which the bright light-emitting element belongs is provided by a pixel data storage circuit of the driving circuit.

From another point of view, the present invention also provides a control method of a light-emitting element array circuit capable of reducing ghosting, for controlling a light-emitting element array, wherein the light-emitting element array comprises: A plurality of light-emitting elements are arranged as a plurality of scan lines and a plurality of data lines, wherein the forward ends of the plurality of light-emitting elements in each scan line are jointly coupled to a scan node, and are The reverse ends of the plurality of light-emitting elements in each data line are commonly coupled to a data node; the control method of the light-emitting element array circuit capable of reducing ghosting includes: in a frame (frame), according to the plurality of scanning lines The arrangement sequence is to electrically connect a plurality of the scan nodes to a scan-on voltage in turn and without overlapping; when the scan nodes are electrically connected to the scan-on voltage, a preset dimming level is provided according to a data operation signal. The data node is set to determine the light-emitting element corresponding to the data node and its brightness; and according to a pre-discharge signal, a pre-discharge level is provided to a predetermined pre-discharge period during a predetermined pre-discharge period at least one of the scan nodes; wherein from the data node corresponding to the preset dimming level grant is provided, to the data node corresponding to not providing the preset dimming level grant, to the scan line in the next sequence to be lit There is a gap time between the data node corresponding to the light-emitting element that does not provide the default dimming level grant to the data node corresponding to the default dimming level grant to the data node corresponding to the default dimming level grant (dead time); wherein the preset pre-discharge period is related to the idle time.

In a preferred embodiment, the step of providing a pre-discharge level to at least one of the predetermined scan nodes during a predetermined pre-discharge period according to a pre-discharge signal includes: in a normal In the pre-discharge mode, according to the pre-discharge signal, a plurality of the idle times in the frame are used as the plurality of the predetermined pre-discharge periods, and the pre-discharge level is provided to the plurality of the predetermined pre-discharge periods. all the scanned nodes.

In a preferred embodiment, the step of providing a pre-discharge level to at least one of the predetermined scan nodes during a predetermined pre-discharge period according to a pre-discharge signal includes: during a power saving In the pre-discharge mode, a signal is stored according to a pixel data, and in the frame, the idle time before lighting the preset light-emitting element is used as the preset pre-discharge period; and in the preset pre-discharge period During the electrical period, a plurality of pre-discharge switches are respectively controlled to electrically connect the scan node of the scan line to which the light-emitting element previously lit by the preset light-emitting element belongs to the pre-discharge level; wherein the pixel data is stored The signal is used to indicate the timing arrangement of lighting the plurality of light-emitting elements; wherein the plurality of pre-discharge switches are correspondingly coupled to the plurality of scan nodes.

In a preferred embodiment, the step of providing a pre-discharge level to at least one of the predetermined scan nodes during a predetermined pre-discharge period according to a pre-discharge signal includes: in a first A performance pre-discharge mode, according to the pre-discharge signal, each of the idle time in the frame and a performance time immediately before each of the idle time in the frame are used as the default pre-discharge period, and in the preset pre-discharge period, the pre-discharge bit is provided for all the scan nodes.

In a preferred embodiment, the step of providing a pre-discharge level to at least one of the predetermined scan nodes during a predetermined pre-discharge period according to a pre-discharge signal includes: in a first In two performance pre-discharge modes, a signal is stored according to a pixel data, and in the frame, the idle time before lighting the preset light-emitting element and the performance time immediately before the idle time are used as the a preset pre-discharge period; and during the preset pre-discharge period, a plurality of pre-discharge switches are respectively controlled to electrically connect the scan node of the scan line to which the light-emitting element previously lit by the preset light-emitting element belongs to to the pre-discharge level; wherein the pixel data storage signal is used to indicate the timing arrangement of lighting a plurality of the light-emitting elements; wherein a plurality of the pre-discharge switches are correspondingly coupled to a plurality of the scan nodes.

In a preferred embodiment, the control method of the light-emitting device array circuit capable of reducing ghost images further includes: providing a pre-charge level to a predetermined pre-charge period during a predetermined pre-charge period according to a pre-charge signal at least one of the data nodes; wherein the predetermined precharge period is related to the idle time.

In a preferred embodiment, the step of providing a pre-charge level to a predetermined at least one of the data nodes during a predetermined pre-charge period according to a pre-charge signal includes: In a normal precharge mode, according to the precharge signal, the plurality of idle times in the frame are used as the plurality of preset precharge periods, and in the plurality of preset precharge periods, the precharge position is permitted to be provided to all such data nodes.

In a preferred embodiment, the step of providing a pre-charge level to a predetermined at least one of the data nodes during a predetermined pre-charge period according to a pre-charge signal includes: during a power saving In the precharge mode, a signal is stored according to a pixel data, and in the frame, the idle time before lighting the preset light-emitting element is used as the preset precharge period; and in the preset precharge During the period, a plurality of precharge switches are respectively controlled to electrically connect the data node of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs to the precharge level; wherein the pixel data stores a signal It is used to indicate the timing arrangement of lighting the plurality of light-emitting elements; wherein the plurality of precharge switches are correspondingly coupled to the plurality of data nodes.

In a preferred embodiment, the step of providing a pre-charge level to a predetermined at least one of the data nodes during a predetermined pre-charge period according to a pre-charge signal includes: in a first A performance precharge mode, according to the precharge signal, each of the idle time in the frame and a performance time immediately before each of the idle times in the frame are used as the default precharge period, and during the predetermined precharge period, the precharge bit is provided for all the data nodes.

In a preferred embodiment, the step of providing a pre-charge level to a predetermined at least one of the data nodes during a predetermined pre-charge period according to a pre-charge signal includes: in a first Two performance precharge modes, store signals according to a pixel data, and in the frame, the idle time before lighting the preset light-emitting element and the performance time immediately before the idle time are used as the a preset precharge period; and during the preset precharge period, a plurality of precharge switches are respectively controlled to switch the data node of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs to, is electrically connected to the precharge level; wherein the pixel data storage signal is used to indicate the timing arrangement of lighting the plurality of light-emitting elements; wherein the plurality of precharge switches are correspondingly coupled to the plurality of data nodes.

In a preferred embodiment, the control method of the light-emitting element array circuit capable of reducing ghosting further comprises: in a pre-discharge charge sharing mode, in the frame, before lighting the preset light-emitting element During a preceding period of the idle time, a plurality of pre-discharge switches are respectively controlled, so as to connect the scan node of the scan line to which the light-emitting element previously lit by the predetermined light-emitting element belongs to the predetermined light-emitting element The scan nodes of the scan line to which the element belongs are electrically connected to each other to achieve charge sharing between the two scan nodes; wherein a plurality of the pre-discharge switches are correspondingly coupled to a plurality of the scan nodes; wherein the preset light-emitting element previously The scanning node of the scanning line to which the lighted light-emitting element belongs is provided by a pixel data storage signal.

In a preferred embodiment, the control method of the light-emitting element array circuit capable of reducing ghosting further comprises: in a pre-charge charge sharing mode, in the frame, before lighting the preset light-emitting element During a previous period of the idle time, a plurality of pre-charge switches are respectively controlled, so as to connect the data node of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs to the preset light-emitting element The data nodes of the data line to which the element belongs are electrically connected to each other to achieve charge sharing between the two data nodes; wherein a plurality of the precharge switches are correspondingly coupled to a plurality of the data nodes; wherein the preset light-emitting element previously The data node of the data line to which the lighted light-emitting element belongs is provided by a pixel data storage signal.

From another point of view, the present invention also provides a control method of a light-emitting element array circuit capable of reducing ghosting, for controlling a light-emitting element array, wherein the light-emitting element array includes a plurality of light-emitting elements arranged as a plurality of scan lines. line) and a plurality of data lines, wherein the forward ends of the plurality of light-emitting elements in each scan line are commonly coupled to a scan node, and are The reverse ends of the plurality of light-emitting elements in each data line are commonly coupled to a data node; the control method of the light-emitting element array circuit capable of reducing ghosting includes: in a frame (frame), according to the plurality of scanning lines The arrangement sequence is to electrically connect a plurality of the scan nodes to a scan-on voltage in turn and without overlapping; when the scan nodes are electrically connected to the scan-on voltage, a preset dimming level is provided according to a data operation signal. The data node is set to determine the lighting of the light-emitting element corresponding to the data node and its brightness; and according to a precharge signal, a precharge level is provided to a predetermined precharge period during a predetermined precharge period at least one of the data nodes; wherein from the data node corresponding to the default dimming level grant is provided, to the data node corresponding to not providing the default dimming level grant, to the scan line in the next sequence to be lit There is a gap time between the data node corresponding to the light-emitting element that does not provide the default dimming level grant to the data node corresponding to the default dimming level grant to the data node corresponding to the default dimming level grant (dead time); wherein the preset precharge period is related to the neutral time.

The advantage of the present invention is that the present invention can eliminate the lower ghost through the pre-charge operation, and eliminate the upper ghost through the pre-discharge operation, and the pre-charge and pre-discharge operations of the present invention include energy saving mode, first performance mode, The second performance mode can achieve energy saving and power saving while maintaining the effect of eliminating upper or lower ghosting.

The following describes in detail with specific embodiments, when it is easier to understand the purpose, technical content, characteristics and effects of the present invention.

100: Light Emitting Diode (LED) Array Circuit

110: LED array

120,220: Scan line switch circuit

130,230: Data line buffer circuit

200: Light-emitting element array circuit

201: Drive circuit

210: Light-emitting element array

211: Light-emitting element

240, 240’, 240”: Pre-discharge control circuit

250, 250', 250": pre-charge control amplifier circuit

2411, 2511: Error Amplifier

2412: Energy-saving pre-discharge adjustment circuit

2413, 2513: Pixel data storage circuit

2414: Pre-discharge charge share control circuit

2512: Energy saving precharge adjustment circuit

2514: Precharge Charge Share Control Circuit

300,400: Control method of light-emitting element array circuit capable of reducing ghosting

301~304, 3031~3036, 401~404, 4031~4036: Steps

Ch1, Ch2, Ch3, Ch4: data lines

Cr, Cc: parasitic capacitance

Csw1: switch Sw1 control signal

Csw2: switch Sw2 control signal

Csw3: switch Sw3 control signal

Csw4: switch Sw4 control signal

Cw1: switch Swa control signal

Cw2: switch Swb control signal

Cw3: switch Swc control signal

Cw4: switch Swd control signal

D1, D2, D3, D4: data nodes

DIM: Preset dimming level

DOS: data manipulation signal

N-1,N,N+1,N+2: scan lines

OPAmp1,OPAmp1’,OPAmp2,OPAmp2’: output signal

Pre-C: Precharge signal

Pre-D: Pre-discharge signal

S1, S2, S3, S4: scan nodes

Sw1, Sw2, Sw3, Sw4, Swa, Swb, Swc, Swd: switch

Tcs: some time ago

Td: idle time

Tp: performance time

Vd1: Data node D1 voltage

Vd2: Data node D2 voltage

Vd3: Data node D3 voltage

Vd4: Data node D4 voltage

Vdd: scan-on voltage

VLED: pre-discharge (charge) level

Vs1: Scan node S1 voltage

Vs2: Scan node S2 voltage

Vs3: Scan node S3 voltage

Vs4: Scan node S4 voltage

FIG. 1A shows a schematic diagram of a prior art light emitting diode (LED) array circuit.

FIG. 1B illustrates the ghosting phenomenon on a prior art light emitting diode array.

1C and 1D show the ghost phenomenon under the prior art LED array.

FIG. 2 is a schematic diagram showing an array circuit of a light-emitting element according to an embodiment of the present invention.

FIG. 3 is a schematic diagram showing signal waveforms of a light-emitting element array circuit in a normal pre-discharge mode according to an embodiment of the present invention.

FIG. 4 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the first performance pre-discharge mode according to an embodiment of the present invention.

FIG. 5 is a schematic diagram showing a light-emitting element array circuit according to another embodiment of the present invention.

6 is a schematic diagram showing the signal waveforms of the light-emitting element array circuit in the energy-saving pre-discharge mode according to an embodiment of the present invention.

7 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the second performance pre-discharge mode according to an embodiment of the present invention.

FIG. 8 is a schematic diagram showing an array circuit of a light-emitting element according to yet another embodiment of the present invention.

FIG. 9 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the normal precharge mode according to an embodiment of the present invention.

10 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the first performance pre-charging mode according to an embodiment of the present invention.

FIG. 11 is a schematic diagram showing a light-emitting element array circuit according to still another embodiment of the present invention.

FIG. 12 is a schematic diagram showing the signal waveforms of the light-emitting element array circuit in the energy-saving pre-charging mode according to an embodiment of the present invention.

13 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the second performance pre-charging mode according to an embodiment of the present invention.

FIG. 14 is a schematic diagram showing a light-emitting element array circuit according to still another embodiment of the present invention.

FIG. 15 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the pre-discharge charge sharing mode according to an embodiment of the present invention.

FIG. 16 is a schematic diagram showing a light-emitting element array circuit according to still another embodiment of the present invention.

17 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the pre-charge charge sharing mode according to an embodiment of the present invention.

18-23 are flowcharts showing a control method of a light-emitting device array circuit capable of reducing ghosting according to an embodiment of the present invention.

24-29 are flowcharts showing a control method of a light-emitting device array circuit capable of reducing ghosting according to another embodiment of the present invention.

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. The drawings in the present invention are schematic, mainly intended to represent the coupling relationship between the circuits and the relationship between the signal waveforms, and the circuits, signal waveforms and frequencies are not drawn to scale.

FIG. 2 shows a light emitting device array circuit 200 according to an embodiment of the present invention. The light-emitting element array circuit 200 includes a light-emitting element array 210 , a plurality of scan line switching circuits 220 and a driving circuit 201 . The light-emitting element array 210 includes a plurality of light-emitting elements 211 , such as, but not limited to, LED elements as shown in the figure. Arranged into complex scan lines, such as but not limited to scan lines N-1, N, N+1, N+2 as shown in FIG. 2, and complex data lines, such as but not limited to The data lines Ch1 shown in Figure 2, Ch2, Ch3, Ch4. According to the present invention, the number of scan lines and data lines is not limited to four in this embodiment, but may also be other numbers; and the numbers of scan lines and data lines may also be different.

The forward ends of the plurality of light emitting elements 211 in each scan line N-1, N, N+1 or N+2 are commonly coupled to the same scan node S1, S2, S3 or S4. For example, as shown in FIG. 2, the forward ends of the plurality of light-emitting elements 211 in the scan line N-1 are commonly coupled to the scan node S1; the forward ends of the plurality of light-emitting elements 211 in the scan line N are commonly coupled connected to the scan node S2; the forward ends of the plurality of light emitting elements 211 in the scan line N+1 are commonly coupled to the scan node S3; the forward ends of the plurality of light emitting elements 211 in the scan line N+2 are commonly coupled to Scan node S4. And the opposite ends of the plurality of light emitting elements 211 in each data line Ch1 , Ch2 , Ch3 or Ch4 are commonly coupled to the same data node D1 , D2 , D3 and D4 . For example, as shown in FIG. 2, the reverse ends of the plurality of light emitting elements 211 in the data line Ch1 are commonly coupled to the data node D1; the reverse ends of the plurality of light emitting elements 211 in the data line Ch2 are commonly coupled to the data node D2; The reverse ends of the plurality of light emitting elements 211 in the data line Ch3 are commonly coupled to the data node D3; the backward ends of the plurality of light emitting elements 211 in the data line Ch4 are commonly coupled to the data node D4.

As shown in FIG. 2 , the complex scan line switch circuits 220 are respectively coupled to the complex scan nodes S1 , S2 , S3 and S4 . The complex scan line switch circuits 220 are in a frame, for example but not limited to the complex number The scan lines S1 , S2 , S3 , and S4 are arranged in turn to electrically connect the corresponding scan nodes S1 , S2 , S3 , and S4 to the scan-on voltage Vdd without overlapping. It should be noted that the arrangement order of the plurality of scan lines S1, S2, S3, and S4 is not limited to the top-down arrangement order, but can also be bottom-up, or not in an adjacent order, and only needs to be in one frame. Among them, all the scan nodes S1 , S2 , S3 , and S4 in the light-emitting element array 210 may be electrically connected to the scan-on voltage Vdd in turn and without overlapping.

Please continue to refer to FIG. 2 , the driving circuit 201 includes a plurality of data line buffer circuits 230 and a pre-discharge control circuit 240 . The plurality of data line buffer circuits 230 are respectively coupled to the plurality of data nodes D1 , D2 , D3 and D4 , and each data line buffer circuit 230 provides or does not provide a preset dimming level DIM for the corresponding data line buffer circuit 230 according to the data operation signal DOS Data node D1, D2, D3 or D4.

Please continue to refer to FIG. 2 , the pre-discharge control circuit 240 is coupled to the plurality of scan nodes S1 , S2 , S3 , and S4 respectively, and is used for setting the pre-discharge level during a predetermined pre-discharge period according to the pre-discharge signal Pre-D. The VLED is provided to a preset at least one scan node S1 , S2 , S3 and/or S4 . The so-called provision of the pre-discharge level VLED to the predetermined at least one scan node S1, S2, S3 and/or S4, for example, as shown in FIG. 2, the pre-discharge signal Pre-D is used in the predetermined pre-discharge period, An error amplifier 2411 is enabled to provide the pre-discharge level VLED to at least one predetermined scan node S1, S2, S3 and/or S4. Among them, as shown in the figure, between the error amplifier 2411 and the scanning nodes S1, S2, S3, S4, resistors, or other electronic components such as switches can be coupled, so that the scanning nodes S1, S2, S3 or S4 are not exactly equal to the pre-discharge The level VLED, which is related to the pre-discharge level VLED, still falls within the scope of the present invention, which is well known to those skilled in the art, and will not be repeated here.

The data line buffer circuit 230 switches from providing the preset dimming level DIM to the corresponding data nodes D1, D2, D3 or D4, to not providing the preset dimming level DIM to the corresponding data nodes D1, D2, D3 Or D4, the data line buffer circuit 230 corresponding to the light-emitting element 211 to be lit in the next scan line N-1, N, N+1 or N+2 does not provide the default dimming level DIM for There is a dead time between the corresponding data nodes D1, D2, D3 or D4 to provide the preset dimming level DIM to the corresponding data nodes D1, D2, D3 or D4. The preset pre-discharge period is related to the neutral time, for example, the neutral time is the preset pre-discharge period, part of the neutral time is used as the preset pre-discharge period, or a period immediately before or after the neutral time plus at least Part of the idle time is used as a preset pre-discharge period.

In a preferred embodiment, the pre-discharge level VLED is related to the difference between the scan-on voltage Vdd and the predetermined voltage drop. For example, the pre-discharge level VLED is, for example, but not limited to, the scan-on voltage Vdd minus a voltage of 1.2 volts (V), that is, for example, the predetermined voltage drop is a voltage of 1.2V; or the pre-discharge level VLED is, for example, but not limited to The scan-on voltage Vdd is subtracted by a voltage of 4.5 volts (V), that is, for example, the predetermined voltage drop is a voltage of 4.5V; other predetermined voltage drops are, for example, but not limited to, a voltage between 1.2V and 4.5V.

FIG. 3 is a schematic diagram showing signal waveforms of a light-emitting element array circuit in a normal pre-discharge mode according to an embodiment of the present invention. Scan node S1 voltage Vs1, scan node S2 voltage Vs2, scan node S3 voltage Vs3, scan node S4 voltage Vs4, data node D1 voltage Vd1, data node D2 voltage Vd2, data node D3 voltage Vd3, data node D4 voltage Vd4, pre-discharge The signal Pre-D is shown in FIG. 3 . As shown in FIG. 3 , and referring to FIG. 2 , the pre-discharge control circuit 240 is, for example, in the normal pre-discharge mode, according to the pre-discharge signal Pre-D, and uses the plurality of idle times Td in the frame as the plurality of preset pre-discharge periods , and the pre-discharge level VLED is provided to all scan nodes S1 , S2 , S3 and S4 during a plurality of preset pre-discharge periods.

FIG. 4 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the first performance pre-discharge mode according to an embodiment of the present invention. Scan node S1 voltage Vs1, scan node S2 voltage Vs2, scan node S3 voltage Vs3, scan node S4 voltage Vs4, data node D1 voltage Vd1, data node D2 voltage Vd2, data node D3 voltage Vd3, data node D4 voltage Vd4, pre-discharge The signal Pre-D is shown in FIG. 4 . As shown in FIG. 4 , and referring to FIG. 2 , the pre-discharge control circuit 240 , for example, in the first performance pre-discharge mode, according to the pre-discharge signal Pre-D, for each idle time Td in the frame, and in the frame The performance time Tp immediately before each idle time Td is used as a predetermined pre-discharge period, and during the predetermined pre-discharge period, a pre-discharge level VLED is provided to all scan nodes S1 , S2 , S3 and S4 .

FIG. 5 is a schematic diagram showing a light-emitting element array circuit according to another embodiment of the present invention. The difference between this embodiment and the embodiment of FIG. 2 is that resistors and pre-discharge switches Swa, Swb, Swc, and Swd can be coupled between the error amplifier 2411 and the scan nodes S1, S2, S3, and S4 in this embodiment, and The pre-discharge control circuit 240 ′ further includes an energy-saving pre-discharge adjustment circuit 2412 and a pixel data storage circuit 2413 . The pixel data storage circuit 2413 is used to store the pixel data storage signal, and the pixel data storage signal is used to indicate the timing arrangement of lighting the plurality of light-emitting elements 211 .

6 is a schematic diagram showing the signal waveforms of the light-emitting element array circuit in the energy-saving pre-discharge mode according to an embodiment of the present invention. Scan node S1 voltage Vs1, scan node S2 voltage Vs2, scan node S3 voltage Vs3, scan node S4 voltage Vs4, data node D1 voltage Vd1, data node D2 voltage Vd2, data node D3 voltage Vd3, data node D4 voltage Vd4, switch Swa The control signal Cw1 , the switch Swb control signal Cw2 , the switch Swc control signal Cw3 , the switch Swd control signal Cw4 , and the pre-discharge signal Pre-D are shown in FIG. 6 . Please refer to FIG. 5 and FIG. 6 at the same time, the energy-saving pre-discharge adjustment circuit 2412 is coupled to the pixel data storage circuit 2413 for storing signals according to the pixel data in the energy-saving pre-discharge mode, and in the frame, when lighting the preset The idle time Td before the light-emitting element 211 is used as the preset pre-discharge period, and during the preset pre-discharge period, the plurality of pre-discharge switches Swa, Swb, Swc and Swd are controlled respectively, so as to switch the preset light-emitting element 211 to one of the pre-discharge switches. The scan node S1, S2, S3 or S4 of the scan line N-1, N, N+1 or N+2 to which the light-emitting element 211 belongs is electrically connected to the pre-discharge level VLED provided by the pre-discharge control circuit 240 . In one embodiment, the plurality of pre-discharge switches Swa, Swb, Swc and Swd are correspondingly coupled to the plurality of scan nodes S1, S2, S3 and S4.

6, according to the present invention, when the light-emitting element array circuit 200 is in the energy-saving pre-discharge mode, when the predetermined light-emitting element 211 belongs to the scan line N and the data line Ch3, the light-emitting element 211 previously clicked The bright light-emitting element 211 belongs to, for example, the scan line N-1 and the data line Ch4; then the idle time Td before lighting the preset light-emitting element 211 (scan line N, data line Ch3) is used as the preset pre-discharge period, The pre-discharge switch Swa is controlled to be turned on, and the pre-discharge switches Swb, Swc and Swd are controlled to be turned off, and the light-emitting element 211 (scanning line N-1) previously lit before the preset light-emitting element 211 (scanning line N, data line Ch3) is turned on. The scan node S1 of the scan line N-1 to which the data line Ch4) belongs is electrically connected to the pre-discharge level VLED provided by the pre-discharge control circuit 240, and so on.

7 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the second performance pre-discharge mode according to an embodiment of the present invention. Scan node S1 voltage Vs1, scan node S2 voltage Vs2, scan node S3 voltage Vs3, scan node S4 voltage Vs4, data node D1 voltage Vd1, data node D2 voltage Vd2, data node D3 voltage Vd3, data node D4 voltage Vd4, switch Swa The control signal Cw1 , the switch Swb control signal Cw2 , the switch Swc control signal Cw3 , the switch Swd control signal Cw4 , and the pre-discharge signal Pre-D are shown in FIG. 7 . Please refer to FIG. 5 and FIG. 7 at the same time, the energy-saving pre-discharge adjustment circuit 2412 is coupled to the pixel data storage circuit 2413 for storing the signal according to the pixel data in the second performance pre-discharge mode, and in the frame, in the lighting pre-discharge mode The previous idle time Td of the light-emitting element 211 and the performance time Tp immediately before the idle time Td are set as the preset pre-discharge period (ie Td+Tp), and in the preset pre-discharge period, the complex pre-discharge period is controlled respectively. The discharge switches Swa, Swb, Swc and Swd are used to discharge the scan nodes S1 and S2 of the scan lines N-1, N, N+1 or N+2 to which the light-emitting element 211 previously lit before the preset light-emitting element 211 belongs , S3 or S4 , electrically connected to the pre-discharge level VLED provided by the pre-discharge control circuit 240 .

FIG. 8 is a schematic diagram showing an array circuit of a light-emitting element according to yet another embodiment of the present invention. The difference between this embodiment and the embodiment of FIG. 2 is that the driving circuit 201 of this embodiment includes a plurality of data line buffer circuits 230 and a precharge control amplifier circuit 250 . The data line buffer circuit 230 is similar to the data line buffer circuit 230 shown in FIG. 2 , so it is not repeated here. The precharge control amplifying circuit 250 is respectively coupled to the plurality of data nodes D1, D2, D3 and D4, and is used for providing the precharge level VLED to the predetermined precharge period according to the precharge signal Pre-C. At least one data node D1, D2, D3 and/or D4. The so-called pre-charging level VLED is provided to the predetermined at least one data node D1, D2, D3 and/or D4, for example, as shown in FIG. 8, the pre-charging signal Pre-C is used in the predetermined pre-charging period, enables an error amplifier 2511, while The pre-charge level VLED is provided to the predetermined at least one data node D1, D2, D3 and/or D4. In one embodiment, the predetermined precharge period is related to the idle time.

FIG. 9 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the normal precharge mode according to an embodiment of the present invention. Scan node S1 voltage Vs1, scan node S2 voltage Vs2, scan node S3 voltage Vs3, scan node S4 voltage Vs4, data node D1 voltage Vd1, data node D2 voltage Vd2, data node D3 voltage Vd3, data node D4 voltage Vd4, precharge The signal Pre-C is shown in FIG. 9 . As shown in FIG. 9 , and referring to FIG. 8 , the precharge control amplifier circuit 250 is, for example, in the normal precharge mode, according to the precharge signal Pre-C, and uses the plurality of idle times Td in the frame as the plurality of preset precharges period, and the precharge level VLED is provided to all data nodes D1 , D2 , D3 and D4 during a plurality of predetermined precharge periods.

10 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the first performance pre-charging mode according to an embodiment of the present invention. Scan node S1 voltage Vs1, scan node S2 voltage Vs2, scan node S3 voltage Vs3, scan node S4 voltage Vs4, data node D1 voltage Vd1, data node D2 voltage Vd2, data node D3 voltage Vd3, data node D4 voltage Vd4, precharge The signal Pre-C is shown in FIG. 10 . As shown in FIG. 10 , the precharge control amplifier circuit 250 is, for example, in the first performance precharge mode, according to the precharge signal Pre-C, for each idle time Td in the frame, and for each adjacent frame in the frame The performance time Tp before the idle time Td is used as the preset precharge period, and during the preset precharge period, the precharge level VLED is provided to all the data nodes D1 , D2 , D3 and D4 .

FIG. 11 is a schematic diagram showing a light-emitting element array circuit according to still another embodiment of the present invention. The difference between this embodiment and the embodiment of FIG. 8 lies in that the precharge switches Sw1, Sw2, Sw3 and Sw4 can be coupled between the error amplifier 2511 and the data nodes D1, D2, D3 and D4 of this embodiment, and the precharge control The amplifier circuit 250 further includes an energy saving precharge adjustment circuit 2512 and a pixel data storage circuit 2513 . The pixel data storage circuit 2513 is used for storing the pixel data storage signal, and the pixel data storage signal is used for indicating the timing arrangement of lighting the plurality of light-emitting elements 211 .

FIG. 12 is a schematic diagram showing the signal waveforms of the light-emitting element array circuit in the energy-saving pre-charging mode according to an embodiment of the present invention. Scan node S1 voltage Vs1, scan node S2 voltage Vs2, scan node S3 voltage Vs3, scan node S4 voltage Vs4, data node D1 voltage Vd1, data node D2 voltage Vd2, data node D3 voltage Vd3, data node D4 voltage Vd4, switch Sw1 The control signal Csw1 , the switch Sw2 control signal Csw2 , the switch Sw3 control signal Csw3 , the switch Sw4 control signal Csw4 and the pre-charge signal Pre-C are shown in FIG. 12 . Please refer to FIG. 11 and FIG. 12 at the same time, the energy-saving precharge adjustment circuit 2512 is coupled to the pixel data storage circuit 2513, and is used in the energy-saving precharge mode to store the signal according to the pixel data, and in the frame, when lighting the preset The idle time Td before the light-emitting element 211 is used as the preset pre-charging period, and in the preset pre-charging period, the plurality of pre-charging switches Sw1, Sw2, Sw3 and Sw4 are controlled respectively, so as to switch the preset light-emitting element 211 to a previous one. The data node D1 , D2 , D3 or D4 of the data line Ch1 , Ch2 , Ch3 or Ch4 to which the lighted light-emitting element 211 belongs is electrically connected to the precharge level VLED provided by the precharge control amplifier circuit 250 . In one embodiment, the plurality of precharge switches Sw1 , Sw2 , Sw3 and Sw4 are correspondingly coupled to the plurality of data nodes D1 , D2 , D3 and D4 .

13 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the second performance pre-charging mode according to an embodiment of the present invention. Scan node S1 voltage Vs1, scan node S2 voltage Vs2, scan node S3 voltage Vs3, scan node S4 voltage Vs4, data node D1 voltage Vd1, data node D2 voltage Vd2, data node D3 voltage Vd3, data node D4 voltage Vd4, switch Sw1 The control signal Csw1 , the switch Sw2 control signal Csw2 , the switch Sw3 control signal Csw3 , the switch Sw4 control signal Csw4 and the precharge signal Pre-C are shown in FIG. 13 . Please refer to FIG. 11 and FIG. 13 at the same time, the power saving precharge adjustment circuit 2512 is coupled to the pixel data storage circuit 2513 for storing the signal according to the pixel data in the second performance precharge mode, and in the frame, in the lighting precharge mode The neutral time Td before the light-emitting element 211 and the performance time Tp immediately before the neutral time Td are set as the preset pre-charging period (ie Td+Tp), and in the preset pre-charging period, multiple pre-charging are respectively controlled Switch Sw1, Sw2, Sw3 and Sw4 are used to electrically connect the data node D1, D2, D3 or D4 of the data line Ch1, Ch2, Ch3 or Ch4 to which the light-emitting element 211 previously lit before the preset light-emitting element 211 belongs to the data node D1, D2, D3 or D4 of the precharge The precharge level VLED provided by the control amplifier circuit 250 is controlled.

FIG. 14 is a schematic diagram showing a light-emitting element array circuit according to still another embodiment of the present invention. The difference between this embodiment and the embodiment of FIG. 5 is that the pre-discharge control circuit 240 ″ of this embodiment includes an error amplifier 2411 , a pre-discharge charge sharing control circuit 2414 and a pixel data storage circuit 2413 . The error amplifier 2411 and the pixel data storage circuit The circuit 2413 is similar to the embodiment of FIG. 5 , so it is not repeated here.

FIG. 15 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the pre-discharge charge sharing mode according to an embodiment of the present invention. Scan node S1 voltage Vs1, scan node S2 voltage Vs2, scan node S3 voltage Vs3, scan node S4 voltage Vs4, data node D1 voltage Vd1, data node D2 voltage Vd2, data node D3 voltage Vd3, data node D4 voltage Vd4, switch Swa The control signal Cw1 , the switch Swb control signal Cw2 , the switch Swc control signal Cw3 , the switch Swd control signal Cw4 , and the output signal OPAmp1 ′ are shown in FIG. 15 . FIG. 15 is a schematic diagram of signal waveforms when the light-emitting element array circuit 200 of FIG. 14 is applied to the normal pre-discharge mode. It should be noted that, in addition to the normal pre-discharge mode, the pre-discharge charge sharing mode of the light-emitting element array circuit 200 of FIG. It should be noted that the preceding period of time Tcs in the adjustment of the neutral time Td does not overlap with the latter period of time.

14 and FIG. 15 at the same time, the pre-discharge charge sharing control circuit 2414 is used for the pre-discharge charge sharing mode, in the frame, the preceding period Tcs in the idle time Td before lighting the preset light-emitting element 211 , respectively control the plurality of pre-discharge switches Swa, Swb, Swc and Swd, so as to switch the scanning line N-1, N, N+1 or N+2 to the scanning line N-1, N, N+1 or N+2 to which the light-emitting element 211 previously lit before the preset light-emitting element 211 belongs. The scan node S1, S2, S3 or S4 and the scan node S1, S2, S3 or S4 of the scan line N-1, N, N+1 or N+2 to which the predetermined light-emitting element 211 belongs are electrically connected to each other to Achieving the charge sharing of the two scan nodes Enjoy. For example, during the preceding period of time Tcs in the idle time Td, the pre-discharge switches Swa and Swb are controlled and turned on, so as to scan the scan line N-1 to which the light-emitting element 211 lit before the preset light-emitting element 211 belongs. The node S1 and the scan node S2 of the scan line N to which the predetermined light-emitting element 211 belongs are electrically connected to each other to achieve charge sharing between the two scan nodes. In one embodiment, the scan node S1 of the scan line N-1 to which the light-emitting element 211 previously lit before the predetermined light-emitting element 211 belongs is provided by the pixel data storage circuit 2413 of the driving circuit 201 .

FIG. 16 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the pre-charge charge sharing mode according to an embodiment of the present invention. The difference between this embodiment and the embodiment of FIG. 11 is that the precharge control amplifying circuit 250 ″ of this embodiment includes an error amplifier 2511 , a precharge charge sharing control circuit 2514 and a pixel data storage circuit 2513 . The error amplifier 2511 and the pixel data The storage circuit 2513 is similar to the embodiment of FIG. 11 , so it is not repeated here.

17 is a schematic diagram showing signal waveforms of the light-emitting element array circuit in the pre-charge charge sharing mode according to an embodiment of the present invention. Scan node S1 voltage Vs1, scan node S2 voltage Vs2, scan node S3 voltage Vs3, scan node S4 voltage Vs4, data node D1 voltage Vd1, data node D2 voltage Vd2, data node D3 voltage Vd3, data node D4 voltage Vd4, switch Sw1 The control signal Csw1 , the switch Sw2 control signal Csw2 , the switch Sw3 control signal Csw3 , the switch Sw4 control signal Csw4 , and the output signal OPAmp2 ′ are shown in FIG. 17 . FIG. 17 is a schematic diagram of signal waveforms when the light-emitting element array circuit 200 of FIG. 16 is applied to the normal precharge mode. It should be noted that, in addition to the normal precharge mode, the precharge charge sharing mode of the light-emitting element array circuit 200 of FIG. 16 can also be applied to the energy saving precharge mode, the first performance precharge mode and the second performance precharge mode. It should be noted that the preceding period of time Tcs in the adjustment of the neutral time Td does not overlap with the latter period of time.

Please refer to FIG. 16 and FIG. 17 at the same time, the precharge charge sharing control circuit 2514 is used for the precharge charge sharing mode, in the frame, the preceding period Tcs in the idle time Td before lighting the preset light-emitting element 211 , respectively control the plurality of precharge switches Sw1, Sw2, Sw3 and Sw4 to set the preset The data node D1, D2, D3 or D4 of the data line Ch1, Ch2, Ch3 or Ch4 to which the light-emitting element 211 that is lit before the light-emitting element 211 belongs, and the data line Ch1, Ch2, Ch3 to which the default light-emitting element 211 belongs Or the data nodes D1, D2, D3 or D4 of Ch4 are electrically connected to each other to achieve charge sharing between the two data nodes. For example, during the preceding time period Tcs in the idle time Td, the precharge switches Sw3 and Sw4 are controlled and turned on, so as to connect the data node D4 of the data line Ch4 to which the light-emitting element 211 previously lit before the preset light-emitting element 211 belongs , and the data node D3 of the data line Ch3 to which the predetermined light-emitting element 211 belongs are electrically connected to each other, so as to achieve charge sharing between the two data nodes. In one embodiment, the data node D4 of the data line Ch4 to which the light-emitting element 211 previously lit before the preset light-emitting element 211 belongs is provided by the pixel data storage circuit 2513 of the driving circuit 201 .

It should be noted that the precharge control amplifier circuit 250 of FIG. 8 can also be applied to the embodiment of FIG. 2 , and the precharge control amplifier circuit 250 ′ and the precharge switches Sw1 to Sw4 of FIG. 11 can also be applied to the embodiment of FIG. 5 . In this case, the pre-discharge operation and the pre-charge operation can be performed at the same time.

18-23 are flowcharts showing a control method of a light-emitting device array circuit capable of reducing ghosting according to an embodiment of the present invention. As shown in FIG. 18 , the control method 300 of the light-emitting element array circuit capable of reducing ghosting according to the present invention includes in step 301 , in the frame, according to the arrangement sequence of the plurality of scan lines, alternately and non-overlapping the plurality of scan nodes are electrically connected to each other. Connect to the scan-on voltage. Next, in step 302, when the scan node is electrically connected to the scan-on voltage, according to the data operation signal, a preset dimming level is provided to allow a preset data node to determine the light-emitting element corresponding to the data node and its corresponding light-emitting device. brightness. Then, in step 303, according to the pre-discharge signal, the pre-discharge level is provided to at least one predetermined scan node during the predetermined pre-discharge period.

As shown in FIG. 19 , in one embodiment, step 303 may be included in step 3031 , in the normal pre-discharge mode, according to the pre-discharge signal, a plurality of idle times in the frame are used as a plurality of preset pre-discharge periods , and the pre-discharge level is provided to all scan nodes during a plurality of preset pre-discharge periods point. As shown in FIG. 20 , in another embodiment, step 303 may include step 3032 and step 3033 . In step 3032, in the energy-saving pre-discharge mode, the signal is stored according to the pixel data, and in the frame, the idle time before the predetermined light-emitting element is turned on is used as the predetermined pre-discharge period. Then, in step 3033, during the preset pre-discharge period, the plurality of pre-discharge switches are controlled respectively, so as to electrically connect the scan nodes of the scan lines to which the light-emitting elements previously lit by the preset light-emitting elements belong to the pre-discharge level .

As shown in FIG. 21 , in another embodiment, step 303 may be included in step 3034 , in the first performance pre-discharge mode, according to the pre-discharge signal, for each idle time in the frame, and in the frame The performance time immediately before each idle time in the grid is used as a predetermined pre-discharge period, and during the predetermined pre-discharge period, a pre-discharge level is provided for all scan nodes.

As shown in FIG. 22 , in another embodiment, step 303 may include step 3035 and step 3036 . In step 3035, in the second performance pre-discharge mode, the signal is stored according to the pixel data, and in the frame, the idle time before lighting the preset light-emitting element and the performance time immediately before the idle time are used as the pre-discharge time. Set the pre-discharge period. Next, in step 3036, during the preset pre-discharge period, the plurality of pre-discharge switches are respectively controlled to electrically connect the scan nodes of the scan lines to which the light-emitting elements previously lit by the preset light-emitting elements belong to the pre-discharge level .

As shown in FIG. 23 , the control method 300 of the light-emitting element array circuit capable of reducing ghost images of the present invention may further include in step 304 , in the pre-discharge charge sharing mode, in the frame, lighting a predetermined light-emitting element In the previous period of the previous idle time, the plurality of pre-discharge switches are controlled respectively, so as to connect the scan node of the scan line to which the light-emitting element previously lit by the preset light-emitting element belongs to the scan line to which the preset light-emitting element belongs. The scan nodes are electrically connected to each other to achieve charge sharing between the two scan nodes. It should be noted that, in one embodiment, the pre-discharge charge sharing mode in step 304 can be applied to the normal pre-discharge mode described in step 3031, the energy-saving pre-discharge mode described in steps 3032-3033, and the steps The first performance pre-discharge mode described in 3034 or the second performance pre-discharge mode described in steps 3035-3036.

24-29 are flowcharts showing a control method of a light-emitting device array circuit capable of reducing ghosting according to another embodiment of the present invention. As shown in FIG. 24 , the control method 400 of the light-emitting element array circuit capable of reducing ghosting of the present invention includes in step 401 , in the frame, according to the arrangement sequence of the plurality of scanning lines, alternately and non-overlapping the plurality of scanning nodes are electrically connected to each other. Connect to the scan-on voltage. Next, in step 402, when the scan node is electrically connected to the scan-on voltage, according to the data operation signal, a preset dimming level is provided to allow a preset data node, so as to determine the light-emitting element corresponding to the data node and its corresponding light-emitting device. brightness. Then, in step 403, according to the precharge signal, the precharge level is provided to at least one preset data node during the preset precharge period.

As shown in FIG. 25 , in one embodiment, step 403 may be included in step 4031 , in the normal precharge mode, according to the precharge signal, the plurality of idle times in the frame are used as the plurality of preset precharge periods , and the precharge level is provided to all data nodes during a plurality of preset precharge periods.

As shown in FIG. 26 , in another embodiment, step 403 may include steps 4032 and 4033 . In step 4032, in the energy-saving precharge mode, the signal is stored according to the pixel data, and in the frame, the blank time before lighting the preset light-emitting element is used as the preset precharge period. Next, in step 4033, during the preset precharge period, a plurality of precharge switches are controlled respectively, so as to electrically connect the data node of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs to the precharge level .

As shown in FIG. 27, in another embodiment, step 403 may be included in step 4034, in the first performance precharge mode, according to the precharge signal, for each idle time in the frame, and in the frame The performance time immediately before each idle time in the grid is used as a preset precharge period, and during the preset precharge period, precharge bits are provided for all data nodes.

As shown in FIG. 28 , in yet another embodiment, step 403 may include step 4035 and step 4036 . In step 4035, in the second performance pre-charging mode, the signal is stored according to the pixel data, and in the frame, the idle time before lighting the preset light-emitting element and the performance time immediately before the idle time are used as the pre- Set the precharge period. Then, in step 4036, during the preset precharge period, the plurality of precharge switches are controlled respectively, so as to electrically connect the data node of the data line to which the light emitting element previously lit by the preset light emitting element belongs to the precharge level .

As shown in FIG. 29 , the control method 400 of the light-emitting element array circuit capable of reducing ghosting of the present invention may further include in step 404 , in the pre-charge charge sharing mode, in the frame, lighting a predetermined light-emitting element In the previous period of the previous idle time, a plurality of precharge switches are controlled respectively, so as to connect the data node of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs to the data line to which the preset light-emitting element belongs. The data nodes are electrically connected to each other to achieve charge sharing between the two data nodes. It should be noted that, in one embodiment, the precharge charge sharing mode of step 404 can be applied to the normal precharge mode described in step 4031 , the energy saving precharge mode described in steps 4032 - 4033 , and the energy saving precharge mode described in step 4034 . The first performance precharge mode described or the second performance precharge mode described in steps 4035-4036.

It should be noted that step 403 in FIG. 24 , step 4031 in FIG. 25 , steps 4032 and 4033 in FIG. 26 , step 4034 in FIG. 27 , steps 4035 and 4036 in FIG. 28 , or step 404 in FIG. 29 can also be applied to FIG. 18 In other embodiments, pre-charge and pre-discharge operations can be performed.

It should be noted that, in the schematic diagram of the signal waveform shown in the embodiment, the lighting sequence of the light-emitting elements 211 shown is only one kind of oblique lines to light up the light-emitting elements 211 in the light-emitting element array 210 in sequence, to illustrate the present invention. The timing arrangement of the light-emitting elements 211 is not limited, and the present invention can be applied to various timing arrangements of the light-emitting elements 211 .

The present invention has been described above with respect to the preferred embodiments, but the above-mentioned descriptions are only intended to make it easy for those skilled in the art to understand the content of the present invention, and are not intended to limit the scope of rights of the present invention. Within the same spirit of the present invention, various equivalent changes will be devised by those skilled in the art. In each embodiment, other steps that do not affect the main function can be inserted between the two steps that are directly connected, as long as it does not affect the achievement of the purpose of the present invention. All of these can be derived by analogy according to the teachings of the present invention. Therefore, the scope of the present invention should cover the above and all other equivalent changes. The foregoing embodiments are not limited to be applied individually, but may also be applied in combination, such as but not limited to using the two embodiments together, or substituting some steps of one embodiment for some steps of another embodiment.

200: Light-emitting element array circuit

201: Drive circuit

210: Light-emitting element array

211: Light-emitting element

220: scan line switch circuit

230: Data line buffer circuit

240: Pre-discharge control circuit

2411: Error Amplifier

Ch1, Ch2, Ch3, Ch4: data lines

Cr, Cc: parasitic capacitance

D1, D2, D3, D4: data nodes

DIM: Preset dimming level

DOS: data manipulation signal

N-1,N,N+1,N+2: scan lines

Pre-D: Pre-discharge signal

S1, S2, S3, S4: scan nodes

Vdd: scan-on voltage

VLED: Pre-discharge level

Claims (57)

A light-emitting element array circuit capable of reducing ghost images, comprising: a light-emitting element array, including a plurality of light-emitting elements, arranged as a plurality of scan lines (scan lines) and a plurality of data lines (data lines), wherein, in each scan line The forward ends of the plurality of light-emitting elements are commonly coupled to a scan node, and the reverse ends of the plurality of light-emitting elements in each data line are commonly coupled to a data node; the plurality of scan line switch circuits are respectively connected with the plurality of the The scan nodes are correspondingly coupled, and a plurality of the scan line switch circuits electrically connect the corresponding scan nodes to a scan-on voltage in turn and without overlapping in a frame according to the arrangement sequence of the plurality of scan lines; and A driving circuit includes: a plurality of data line buffer circuits, respectively coupled to a plurality of the data nodes, the data line buffer circuits are used for providing or not providing a preset dimming level grant corresponding to a data operation signal. the data node; and a pre-discharge control circuit, respectively coupled to the plurality of scan nodes, for providing a pre-discharge level to at least one of a predetermined pre-discharge period during a predetermined pre-discharge period according to a pre-discharge signal the scan node; wherein the data line buffer circuit switches from providing the data node corresponding to the default dimming bit grant to not providing the data node corresponding to the default dimming bit grant to the next scan line The data line buffer circuit corresponding to the light-emitting element to be lit has changed from not providing the data node corresponding to the preset dimming level to the data node corresponding to the preset dimming level. a dead time; wherein the predetermined pre-discharge period is related to the dead time. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 1, wherein the pre-discharge level is related to a difference between the scan-on voltage and a predetermined voltage drop. The light-emitting device array circuit capable of reducing ghosting as claimed in claim 1, wherein the pre-discharge control circuit is in a normal pre-discharge mode, and uses a plurality of the idle times in the frame as the pre-discharge signal according to the pre-discharge signal. The predetermined pre-discharge periods are plural, and the pre-discharge levels are provided to all the scan nodes during the plurality of predetermined pre-discharge periods. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 1, wherein the driving circuit further comprises: a pixel data storage circuit for storing a pixel data storage signal, the pixel data storage signal being used for indicating the lighting of a plurality of The timing arrangement of the light-emitting element; and an energy-saving pre-discharge adjustment circuit coupled to the pixel data storage circuit for storing a signal according to the pixel data in an energy-saving pre-discharge mode, and in the frame, when lighting up The preset idle time before the light-emitting element is used as the preset pre-discharge period, and during the preset pre-discharge period, a plurality of pre-discharge switches are respectively controlled to light up the preset light-emitting element before The scan node of the scan line to which the light-emitting element belongs is electrically connected to the pre-discharge level provided by the pre-discharge control circuit; wherein a plurality of the pre-discharge switches are correspondingly coupled to the plurality of the scan nodes. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 1, wherein the pre-discharge control circuit is in a first performance pre-discharge mode, according to the pre-discharge signal, for each of the blank time in the frame , and a performance time immediately before each of the idle times in the frame as the predetermined pre-discharge period, and during the predetermined pre-discharge period, the pre-discharge level is provided for all the scan nodes. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 1, wherein the driving circuit further comprises: a pixel data storage circuit for storing a pixel data storage signal, the pixel data storage signal is used to indicate the timing arrangement of lighting the plurality of light-emitting elements; and an energy-saving pre-discharge adjustment circuit, coupled to the pixel data storage circuit, In a second performance pre-discharge mode, the signal is stored according to the pixel data, and in the frame, the idle time before lighting the preset light-emitting element and the one immediately before the idle time The performance time is used as the preset pre-discharge period, and during the preset pre-discharge period, a plurality of pre-discharge switches are controlled respectively, so as to turn on the scanning line of the scan line to which the light-emitting element previously lit by the preset light-emitting element belongs. A scan node is electrically connected to the pre-discharge level provided by the pre-discharge control circuit; wherein a plurality of the pre-discharge switches are correspondingly coupled to the plurality of the scan nodes. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 1, wherein the driving circuit further comprises a pre-charge control amplifier circuit, which is respectively coupled to the plurality of data nodes, and used for performing a pre-charge signal in a For a predetermined precharge period, a precharge level is provided to a predetermined at least one of the data nodes; wherein the predetermined precharge period is related to the idle time. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 7, wherein the pre-charge control amplifier circuit is in a normal pre-charge mode, according to the pre-charge signal, and uses a plurality of the idle times in the frame, As a plurality of the predetermined precharge periods, the precharge level is provided to all the data nodes during the plurality of the predetermined precharge periods. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 7, wherein the driving circuit further comprises: a pixel data storage circuit for storing a pixel data storage signal, the pixel data storage signal being used for indicating lighting of a plurality of The timing arrangement of the light-emitting element; and an energy-saving precharge adjustment circuit, coupled to the pixel data storage circuit, for storing a signal according to the pixel data in an energy-saving precharge mode, and in the frame, when lighting up default hair The previous idle time of the light element is used as the preset pre-charge period, and during the preset pre-charge period, a plurality of pre-charge switches are respectively controlled to turn on the light-emitting element previously lit by the preset light-emitting element The data node of the corresponding data line is electrically connected to the precharge level provided by the precharge control amplifier circuit; wherein a plurality of the precharge switches are correspondingly coupled to the plurality of the data nodes. The light emitting element array circuit capable of reducing ghosting as claimed in claim 7, wherein the precharge control amplifier circuit is in a first performance precharge mode, according to the precharge signal, to use each of the empty spaces in the frame A slot time, and a performance time in the frame immediately preceding each of the idle times are used as the predetermined precharge period during which the precharge bit is provided to grant all the data nodes. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 7, wherein the driving circuit further comprises: a pixel data storage circuit for storing a pixel data storage signal, the pixel data storage signal being used for indicating lighting of a plurality of timing arrangement of the light-emitting element; and an energy-saving precharge adjustment circuit coupled to the pixel data storage circuit for storing signals according to the pixel data in a second performance precharge mode, and in the frame, in The neutral time before lighting the preset light-emitting element and the performance time immediately before the neutral time are used as the preset precharge period, and during the preset precharge period, a plurality of precharge switches are controlled respectively , to electrically connect the data node of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs to the pre-charge level provided by the pre-charge control amplifier circuit; wherein a plurality of the pre-charge The switch is correspondingly coupled to the plurality of data nodes. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 1, wherein the driving circuit further comprises a pre-discharge charge sharing control circuit for in a pre-discharge charge sharing mode, In the frame, during a period of time before the preset light-emitting element is turned on, the pre-discharge switches are respectively controlled, so as to turn on the light-emitting element previously lighted by the preset light-emitting element. The scan node of the scan line to which the element belongs and the scan node of the scan line to which the light-emitting element belongs are electrically connected to each other to achieve charge sharing between the two scan nodes; wherein the plurality of pre-discharge switches correspond to is coupled to a plurality of the scan nodes; wherein the scan node of the scan line to which the light-emitting element previously lit by the light-emitting element belongs is provided by a pixel data storage circuit of the drive circuit. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 7, wherein the driving circuit further comprises a pre-charge charge sharing control circuit for in a pre-charge charge sharing mode, in the frame, when lighting up During a period of time in the previous idle time of the preset light-emitting element, a plurality of precharge switches are respectively controlled, so as to set the data of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs. A node is electrically connected to the data node of the data line to which the predetermined light-emitting element belongs, so as to achieve charge sharing between the two data nodes; wherein a plurality of the precharge switches are correspondingly coupled to a plurality of the data nodes; wherein The data node of the data line to which the light-emitting element previously lit by the predetermined light-emitting element belongs is provided by a pixel data storage circuit of the driving circuit. A light-emitting element array circuit capable of reducing ghost images, comprising: a light-emitting element array, including a plurality of light-emitting elements, arranged as a plurality of scan lines (scan lines) and a plurality of data lines (data lines), wherein, in each scan line The forward ends of the plurality of light-emitting elements are commonly coupled to a scan node, and the backward ends of the plurality of light-emitting elements in each data line are commonly coupled to a data node; A plurality of scan line switch circuits are respectively coupled to a plurality of the scan nodes, and the plurality of scan line switch circuits, in a frame, according to the arrangement order of the plurality of scan lines, alternately and non-overlapping correspond to the scans The node is electrically connected to a scan-on voltage; and a driving circuit includes: a plurality of data line buffer circuits respectively coupled to a plurality of the data nodes, the data line buffer circuit is used for providing or not according to a data operation signal providing a preset dimming level grant to the corresponding data node; and a precharge control amplifying circuit, respectively coupled to a plurality of the data nodes, for a preset precharge period according to a precharge signal, a A pre-charge level is provided to the preset at least one of the data nodes; wherein the data line buffer circuit switches from providing the data node corresponding to the preset dimming level to not providing the preset dimming level to the corresponding data node For the data node, the data line buffer circuit corresponding to the light-emitting element to be lit in the scan line of the next sequence will not provide the data node corresponding to the default dimming bit, and then provide the default dimming. There is a dead time between the data nodes corresponding to the bit grants; wherein the predetermined precharge period is related to the dead time. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 14, wherein the pre-charge control amplifier circuit is in a normal pre-charge mode, according to the pre-charge signal, and uses a plurality of the idle times in the frame, As a plurality of the predetermined precharge periods, the precharge level is provided to all the data nodes during the plurality of the predetermined precharge periods. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 14, wherein the driving circuit further comprises: a pixel data storage circuit for storing a pixel data storage signal, the pixel data storage signal is used to indicate the timing arrangement of lighting the plurality of light-emitting elements; and an energy saving precharge adjustment circuit, coupled with the pixel data storage circuit, In an energy-saving precharge mode, the signal is stored according to the pixel data, and in the frame, the idle time before lighting the preset light-emitting element is used as the preset precharge period, and in the frame The preset precharge period controls a plurality of precharge switches respectively, so as to electrically connect the data node of the data line to which the light emitting element previously lit by the preset light emitting element belongs to the precharge control amplifier circuit. The precharge level is provided; wherein a plurality of the precharge switches are correspondingly coupled to a plurality of the data nodes. The light emitting element array circuit capable of reducing ghosting as claimed in claim 14, wherein the precharge control amplifier circuit is in a first performance precharge mode, according to the precharge signal, for each of the blanks in the frame time, and a performance time in the frame immediately preceding each of the idle times as the predetermined precharge period during which the precharge bit is provided to grant all the data nodes. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 14, wherein the driving circuit further comprises: a pixel data storage circuit for storing a pixel data storage signal, the pixel data storage signal being used to indicate the lighting of the plurality of timing arrangement of the light-emitting element; and an energy-saving precharge adjustment circuit coupled to the pixel data storage circuit for storing signals according to the pixel data in a second performance precharge mode, and in the frame, in The neutral time before lighting the preset light-emitting element and the performance time immediately before the neutral time are used as the preset precharge period, and during the preset precharge period, a plurality of precharge switches are controlled respectively , to electrically connect the data node of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs to the pre-charge level provided by the pre-charge control amplifier circuit; wherein a plurality of the pre-charge switches , which is correspondingly coupled to the plurality of data nodes. The light-emitting element array circuit capable of reducing ghosting as claimed in claim 14, wherein the driving circuit further comprises a pre-charge charge sharing control circuit for in a pre-charge charge sharing mode, in the frame, when lighting up During a period of time in the previous idle time of the preset light-emitting element, a plurality of precharge switches are respectively controlled, so as to set the data of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs. A node is electrically connected to the data node of the data line to which the predetermined light-emitting element belongs, so as to achieve charge sharing between the two data nodes; wherein a plurality of the precharge switches are correspondingly coupled to a plurality of the data nodes; wherein The data node of the data line to which the light-emitting element previously lit by the predetermined light-emitting element belongs is provided by a pixel data storage circuit of the driving circuit. A driving circuit for a light-emitting element array circuit capable of reducing ghost images, used for controlling a light-emitting element array, wherein the light-emitting element array includes a plurality of light-emitting elements arranged as a plurality of scan lines and a plurality of data lines, Wherein, the forward ends of the plurality of light-emitting elements in each scan line are commonly coupled to a scan node, and the backward ends of the plurality of light-emitting elements in each data line are commonly coupled to a data node; wherein , a plurality of the scan nodes are correspondingly coupled with a plurality of scan line switch circuits, and the plurality of scan line switch circuits, in a frame, according to the arrangement order of the plurality of scan lines, alternately and non-overlapping correspond to the scan nodes is electrically connected to a scan-on voltage; the driving circuit of the light-emitting element array circuit capable of reducing ghost images includes: a plurality of data line buffer circuits, respectively coupled to the plurality of the data nodes, the data line buffer circuits are used for providing or not providing a preset dimming level grant to the corresponding data node according to a data operation signal; and a a pre-discharge control circuit, respectively coupled to the plurality of scan nodes, for providing a pre-discharge level to at least one of the predetermined scan nodes in a predetermined pre-discharge period according to a pre-discharge signal; wherein the The data line buffer circuit switches from providing the data node corresponding to the default dimming bit grant to not providing the data node corresponding to the default dimming bit grant, to the light to be turned on in the scan line in the next sequence There is a dead time between the data line buffer circuit corresponding to the element from not providing the data node corresponding to the default dimming level grant to providing the data node corresponding to the default dimming level grant time); wherein the preset pre-discharge period is related to the neutral time. The driving circuit of the light-emitting element array circuit capable of reducing ghosting as claimed in claim 20, wherein the pre-discharge level is related to a difference between the scan-on voltage and a predetermined voltage drop. The driving circuit of the light-emitting element array circuit capable of reducing ghosting as claimed in claim 20, wherein the pre-discharge control circuit is in a normal pre-discharge mode, according to the pre-discharge signal, and uses a plurality of the blanks in the frame time as a plurality of the predetermined pre-discharge periods, and the pre-discharge level is provided to all the scan nodes during the plurality of the predetermined pre-discharge periods. The driving circuit of the light-emitting element array circuit capable of reducing ghosting according to claim 20, further comprising: a pixel data storage circuit for storing a pixel data storage signal, the pixel data storage signal being used for indicating lighting of a plurality of the timing of light-emitting elements; and An energy-saving pre-discharge adjustment circuit, coupled to the pixel data storage circuit, is used in an energy-saving pre-discharge mode to store a signal according to the pixel data, and in the frame, before lighting the preset light-emitting element The idle time is used as the preset pre-discharge period, and during the preset pre-discharge period, a plurality of pre-discharge switches are controlled respectively, so as to set the scan to which the light-emitting element previously lit by the preset light-emitting element belongs. The scan node of the line is electrically connected to the pre-discharge level provided by the pre-discharge control circuit; wherein a plurality of the pre-discharge switches are correspondingly coupled to the plurality of the scan nodes. The driving circuit of the light-emitting device array circuit capable of reducing ghosting as claimed in claim 20, wherein the pre-discharge control circuit is in a first performance pre-discharge mode, according to the pre-discharge signal, for each of the frames in the frame The idle time, and a performance time immediately preceding each of the idle times in the frame, serve as the predetermined pre-discharge period during which the pre-discharge level is provided to grant all the scan nodes . The driving circuit of the light-emitting element array circuit capable of reducing ghosting according to claim 20, further comprising: a pixel data storage circuit for storing a pixel data storage signal, the pixel data storage signal being used for indicating lighting of a plurality of the timing arrangement of light-emitting elements; and an energy-saving pre-discharge adjustment circuit, coupled to the pixel data storage circuit, for storing a signal according to the pixel data in a second performance pre-discharge mode, and in the frame, at a point The previous neutral time of the preset light-emitting element and the performance time immediately before the neutral time are turned on as the preset pre-discharge period, and a plurality of pre-discharge switches are controlled respectively during the preset pre-discharge period, to electrically connect the scan node of the scan line to which the light-emitting element previously lit by the preset light-emitting element belongs to the pre-discharge level provided by the pre-discharge control circuit; wherein the plurality of pre-discharge switches, The scanning nodes are correspondingly coupled to the plurality of scanning nodes. The driving circuit of the light-emitting element array circuit capable of reducing ghosting according to claim 20, further comprising a pre-charge control amplifier circuit, respectively coupled to the plurality of data nodes, for performing a pre-charge signal in a pre-charge signal according to a pre-charge signal. A precharge period is set, and a precharge level is provided to a preset at least one of the data nodes; wherein the preset precharge period is related to the idle time. The driving circuit of the light-emitting element array circuit capable of reducing ghosting as claimed in claim 26, wherein the pre-charge control amplifier circuit is in a normal pre-charge mode, according to the pre-charge signal, to use a plurality of the empty spaces in the frame The file time is used as a plurality of the preset precharge periods, and the precharge level is provided to all the data nodes during the plurality of preset precharge periods. The driving circuit of the light-emitting element array circuit capable of reducing ghosting as claimed in claim 26, further comprising: a pixel data storage circuit for storing a pixel data storage signal, the pixel data storage signal being used for indicating lighting of a plurality of the timing arrangement of light-emitting elements; and an energy-saving precharge adjustment circuit coupled to the pixel data storage circuit for storing a signal according to the pixel data in an energy-saving precharge mode, and in the frame, in the lighting pre-charge mode The previous idle time of the light-emitting element is set as the preset pre-charge period, and during the preset pre-charge period, a plurality of pre-charge switches are respectively controlled to turn on the preset light-emitting element previously lit. The data node of the data line to which the light-emitting element belongs is electrically connected to the precharge level provided by the precharge control amplifier circuit; wherein a plurality of the precharge switches are correspondingly coupled to the data nodes. The driving circuit of the light-emitting element array circuit capable of reducing ghosting as claimed in claim 26, wherein the pre-charge control amplifier circuit is in a first performance pre-charge mode, according to the pre-charge signal, for each frame in the frame one of the gap times, and the interval between each of the gap times immediately in the frame A previous performance time is used as the preset precharge period, and during the preset precharge period, the precharge bit is provided for all the data nodes. The driving circuit of the light-emitting element array circuit capable of reducing ghosting as claimed in claim 26, further comprising: a pixel data storage circuit for storing a pixel data storage signal, the pixel data storage signal being used for indicating lighting of a plurality of the timing arrangement of light-emitting elements; and an energy-saving precharge adjustment circuit, coupled to the pixel data storage circuit, for storing a signal according to the pixel data in a second performance precharge mode, and in the frame, at a point The previous neutral time of the preset light-emitting element and the performance time immediately before the neutral time are turned on as the preset precharge period, and a plurality of precharge switches are controlled respectively during the preset precharge period, to electrically connect the data node of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs to the pre-charge level provided by the pre-charge control amplifier circuit; wherein a plurality of the pre-charge switches , which is correspondingly coupled to the plurality of data nodes. The driving circuit of the light-emitting element array circuit capable of reducing ghosting as described in claim 20, further comprising a pre-discharge charge sharing control circuit for in a pre-discharge charge sharing mode, in the frame, in the lighting pre-charge Set a period of time in the previous idle time of the light-emitting element, respectively control a plurality of pre-discharge switches, so as to set the scan node of the scan line to which the light-emitting element previously lit by the light-emitting element belongs to , which is electrically connected to the scan node of the scan line to which the predetermined light-emitting element belongs, so as to achieve charge sharing between the two scan nodes; wherein a plurality of the pre-discharge switches are correspondingly coupled to a plurality of the scan nodes; wherein the pre-discharge switches The scan node of the scan line to which the light-emitting element previously lit by the light-emitting element belongs is provided by a pixel data storage circuit of the driving circuit. The driving circuit of the light-emitting element array circuit capable of reducing ghosting according to claim 26, further comprising a pre-charge charge sharing control circuit for in a pre-charge charge sharing mode, in the frame, in the lighting pre-charge Set a period of time in the previous idle time of the light-emitting element, respectively control a plurality of pre-charge switches, so as to set the data node of the data line to which the light-emitting element previously lit by the light-emitting element belongs to , which is electrically connected with the data node of the data line to which the predetermined light-emitting element belongs, so as to achieve charge sharing between the two data nodes; wherein a plurality of the precharge switches are correspondingly coupled to a plurality of the data nodes; wherein the precharge switches The data node of the data line to which the light-emitting element previously lit by the light-emitting element belongs is provided by a pixel data storage circuit of the driving circuit. A driving circuit for a light-emitting element array circuit capable of reducing ghost images, used for controlling a light-emitting element array, wherein the light-emitting element array includes a plurality of light-emitting elements arranged as a plurality of scan lines and a plurality of data lines, Wherein, the forward ends of the plurality of light-emitting elements in each scan line are commonly coupled to a scan node, and the backward ends of the plurality of light-emitting elements in each data line are commonly coupled to a data node; wherein , a plurality of the scan nodes are correspondingly coupled with a plurality of scan line switch circuits, and the plurality of scan line switch circuits, in a frame, according to the arrangement order of the plurality of scan lines, alternately and non-overlapping correspond to the scan nodes is electrically connected to a scan-on voltage; the driving circuit of the light-emitting element array circuit capable of reducing ghosting includes: a plurality of data line buffer circuits respectively coupled to a plurality of the data nodes, the data line buffer circuits are used for according to a data an operation signal to provide or not to provide a preset dimming level to the corresponding data node; and a pre-charge control amplifier circuit, respectively coupled to a plurality of the data nodes, for pre-charging a pre-charge signal according to a pre-charge signal setting a pre-charging period, and providing a pre-charging level to at least one preset data node; The data line buffer circuit switches from providing the data node corresponding to the default dimming level grant to not providing the data node corresponding to the default dimming level grant, to the next scan line to be lit. There is a gap time between the data line buffer circuit corresponding to the light-emitting element from not providing the data node corresponding to the default dimming level grant to providing the data node corresponding to the default dimming level grant (dead time); wherein the preset precharge period is related to the neutral time. The driving circuit of the light-emitting element array circuit capable of reducing ghosting as claimed in claim 33, wherein the precharge control amplifier circuit is in a normal precharge mode, according to the precharge signal, to use a plurality of the empty spaces in the frame The file time is used as a plurality of the preset precharge periods, and the precharge level is provided to all the data nodes during the plurality of preset precharge periods. The driving circuit of the light-emitting device array circuit capable of reducing ghosting as claimed in claim 33, further comprising: a pixel data storage circuit for storing a pixel data storage signal, the pixel data storage signal being used for indicating lighting of a plurality of the timing arrangement of light-emitting elements; and an energy-saving precharge adjustment circuit coupled to the pixel data storage circuit for storing a signal according to the pixel data in an energy-saving precharge mode, and in the frame, in the lighting pre-charge mode The previous idle time of the light-emitting element is set as the preset pre-charge period, and during the preset pre-charge period, a plurality of pre-charge switches are respectively controlled to turn on the preset light-emitting element previously lit. The data node of the data line to which the light-emitting element belongs is electrically connected to the precharge level provided by the precharge control amplifier circuit; wherein a plurality of the precharge switches are correspondingly coupled to the data nodes. The driving circuit of the light-emitting element array circuit capable of reducing ghosting as claimed in claim 33, wherein the precharge control amplifier circuit is in a first performance precharge mode, according to the precharge signal number, and use each of the idle time in the frame and a performance time immediately before each of the idle time in the frame as the preset precharge period, and in the preset precharge period , providing the precharge bit grants all the data nodes. The driving circuit of the light-emitting device array circuit capable of reducing ghosting as claimed in claim 33, further comprising: a pixel data storage circuit for storing a pixel data storage signal, the pixel data storage signal being used for indicating lighting of a plurality of the timing arrangement of light-emitting elements; and an energy-saving precharge adjustment circuit, coupled to the pixel data storage circuit, for storing a signal according to the pixel data in a second performance precharge mode, and in the frame, at a point The previous neutral time of the preset light-emitting element and the performance time immediately before the neutral time are turned on as the preset precharge period, and a plurality of precharge switches are controlled respectively during the preset precharge period, to electrically connect the data node of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs to the pre-charge level provided by the pre-charge control amplifier circuit; wherein a plurality of the pre-charge switches , which is correspondingly coupled to the plurality of data nodes. The driving circuit of the light-emitting element array circuit capable of reducing ghosting according to claim 33, further comprising a pre-charge charge sharing control circuit for in a pre-charge charge sharing mode, in the frame, in the lighting pre-charge Set a period of time in the previous idle time of the light-emitting element, respectively control a plurality of pre-charge switches, so as to set the data node of the data line to which the light-emitting element previously lit by the light-emitting element belongs to , which is electrically connected with the data node of the data line to which the predetermined light-emitting element belongs, so as to achieve charge sharing between the two data nodes; wherein a plurality of the precharge switches are correspondingly coupled to a plurality of the data nodes; wherein the precharge switches The data node of the data line to which the light-emitting element previously lit by the light-emitting element belongs is provided by a pixel data storage circuit of the driving circuit. A control method of a light-emitting element array circuit capable of reducing ghosting, for controlling a light-emitting element array, wherein the light-emitting element array includes a plurality of light-emitting elements arranged as a plurality of scan lines and a plurality of data lines, Wherein, the forward ends of the plurality of light-emitting elements in each scan line are commonly coupled to a scan node, and the backward ends of the plurality of light-emitting elements in each data line are commonly coupled to a data node; the A control method of a light-emitting element array circuit capable of reducing ghost images includes: in a frame, according to the arrangement sequence of a plurality of the scan lines, electrically connecting a plurality of the scan nodes to a scan-on voltage in turns without overlapping; When the scan node is electrically connected to the scan-on voltage, a preset dimming level is provided to the preset data node according to a data operation signal, so as to determine the lighting of the light-emitting element corresponding to the data node and its brightness ; and according to a pre-discharge signal, during a predetermined pre-discharge period, a pre-discharge level is provided to the preset at least one of the scan nodes; wherein the data node corresponding to the preset dimming level is provided, The data node corresponding to the default dimming level permission is not provided, and the data node corresponding to the light-emitting element to be lit in the scan line of the next order is not provided corresponding to the default dimming level permission. There is a dead time between the data nodes that provide the preset dimming level grant corresponding to the data nodes, wherein the preset pre-discharge period is related to the dead time. The control method of the light-emitting device array circuit capable of reducing ghosting as claimed in claim 39, wherein the pre-discharge level is related to a difference between the scan-on voltage and a predetermined voltage drop. The control method for a light-emitting device array circuit capable of reducing ghosting as claimed in claim 39, wherein a pre-discharge level is raised during a predetermined pre-discharge period according to a pre-discharge signal The step of providing the preset at least one scan node includes: in a normal pre-discharge mode, according to the pre-discharge signal, using a plurality of the idle times in the frame as a plurality of the preset pre-discharge periods, The pre-discharge levels are provided to all the scan nodes during a plurality of the predetermined pre-discharge periods. The control method for a light-emitting element array circuit capable of reducing ghosting as claimed in claim 39, wherein a pre-discharge level is provided to at least one of the predetermined pre-discharge periods during a predetermined pre-discharge period according to a pre-discharge signal. The step of scanning nodes includes: in an energy-saving pre-discharge mode, storing a signal according to a pixel data, and in the frame, the idle time before lighting the preset light-emitting element is used as the preset a pre-discharge period; and during the preset pre-discharge period, a plurality of pre-discharge switches are respectively controlled to electrically connect the scan node of the scan line to which the light-emitting element previously lit by the predetermined light-emitting element belongs to the A pre-discharge level; wherein the pixel data storage signal is used to indicate the timing arrangement of lighting a plurality of the light-emitting elements; wherein a plurality of the pre-discharge switches are correspondingly coupled to a plurality of the scan nodes. The control method for a light-emitting element array circuit capable of reducing ghosting as claimed in claim 39, wherein a pre-discharge level is provided to at least one of the predetermined pre-discharge periods during a predetermined pre-discharge period according to a pre-discharge signal. The step of scanning nodes includes: in a first performance pre-discharge mode, according to the pre-discharge signal, with each of the blank times in the frame, and immediately before each of the blank times in the frame A performance time of is used as the predetermined pre-discharge period, and the pre-discharge bit is provided for all the scan nodes during the predetermined pre-discharge period. The control method for a light-emitting element array circuit capable of reducing ghosting as claimed in claim 39, wherein a pre-discharge level is provided to at least one of the predetermined pre-discharge periods during a predetermined pre-discharge period according to a pre-discharge signal. The steps of scanning nodes include: In a second performance pre-discharge mode, the signal is stored according to a pixel data, and in the frame, the idle time before lighting the preset light-emitting element and the performance time immediately before the idle time , as the preset pre-discharge period; and during the preset pre-discharge period, respectively control a plurality of pre-discharge switches to switch the scan node of the scan line to which the light-emitting element previously lit by the preset light-emitting element belongs. , which is electrically connected to the pre-discharge level; wherein the pixel data storage signal is used to indicate the timing arrangement of lighting a plurality of the light-emitting elements; wherein a plurality of the pre-discharge switches are correspondingly coupled to a plurality of the scan nodes. The control method of the light-emitting device array circuit capable of reducing ghosting according to claim 39, further comprising: according to a precharge signal, during a predetermined precharge period, providing a precharge level to a predetermined at least a data node; wherein the predetermined precharge period is related to the idle time. The control method for a light-emitting device array circuit capable of reducing ghosting according to claim 45, wherein a pre-charge level is provided to at least one of the predetermined pre-charge periods during a predetermined pre-charge period according to a pre-charge signal The step of the data node includes: in a normal precharge mode, according to the precharge signal, using a plurality of the idle times in the frame as a plurality of the predetermined precharge periods, and in a plurality of the predetermined precharge periods During the charging period, the precharge level is provided to all the data nodes. The control method for a light-emitting device array circuit capable of reducing ghosting according to claim 45, wherein a pre-charge level is provided to at least one of the predetermined pre-charge periods during a predetermined pre-charge period according to a pre-charge signal The step of the data node includes: in an energy saving precharge mode, storing a signal according to a pixel data, and in the frame, the idle time before lighting the preset light-emitting element is used as the preset precharge period; And in the preset precharge period, a plurality of precharge switches are controlled respectively, so as to electrically connect the data node of the data line to which the light emitting element previously lit by the preset light emitting element belongs to the precharge level ; wherein the pixel data storage signal is used to indicate the timing arrangement of lighting a plurality of the light-emitting elements; wherein a plurality of the precharge switches are correspondingly coupled to a plurality of the data nodes. The control method for a light-emitting device array circuit capable of reducing ghosting according to claim 45, wherein a pre-charge level is provided to at least one of the predetermined pre-charge periods during a predetermined pre-charge period according to a pre-charge signal The steps of the data node include: in a first performance precharge mode, according to the precharge signal, with each of the gap times in the frame and immediately before each of the gap times in the frame A performance time of is used as the preset precharge period, and the precharge bit is provided for all the data nodes during the preset precharge period. The control method for a light-emitting device array circuit capable of reducing ghosting according to claim 45, wherein a pre-charge level is provided to at least one of the predetermined pre-charge periods during a predetermined pre-charge period according to a pre-charge signal The step of the data node includes: in a second performance pre-charge mode, storing a signal according to a pixel data, and in the frame, in the blank time before lighting the preset light-emitting element and immediately adjacent to the The performance time before the neutral time is used as the preset pre-charge period; and during the preset pre-charge period, a plurality of pre-charge switches are controlled respectively, so as to assign the light-emitting element previously lit by the preset light-emitting element to which the light-emitting element belongs. The data node of the data line is electrically connected to the precharge level; wherein the pixel data storage signal is used to indicate the timing arrangement of lighting a plurality of the light-emitting elements; wherein a plurality of the precharge switches are correspondingly coupled to a plurality of the data node. The control method of the light-emitting element array circuit capable of reducing ghosting as described in claim 39, further comprising: in a pre-discharge charge sharing mode, in the frame, before lighting the preset light-emitting element During a previous period of the idle time, a plurality of pre-discharge switches are respectively controlled, so as to connect the scan node of the scan line to which the light-emitting element previously lit by the predetermined light-emitting element belongs to the scan node of the predetermined light-emitting element to which the light-emitting element belongs. The scan nodes of the scan lines are electrically connected to each other to achieve charge sharing between the two scan nodes; wherein a plurality of the pre-discharge switches are correspondingly coupled to a plurality of the scan nodes; wherein the predetermined light-emitting element is previously lit The scan node of the scan line to which the light-emitting element belongs is provided by a pixel data storage signal. The control method of the light-emitting element array circuit capable of reducing ghosting as described in claim 45, further comprising: in a pre-charge charge sharing mode, in the frame, before lighting the preset light-emitting element During a previous period of the idle time, a plurality of precharge switches are respectively controlled, so as to connect the data node of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs to the data node of the data line to which the light-emitting element belongs to the preset light-emitting element. The data nodes of the data line are electrically connected to each other to achieve charge sharing between the two data nodes; wherein a plurality of the precharge switches are correspondingly coupled to a plurality of the data nodes; wherein the predetermined light-emitting element is previously lit The data node of the data line to which the light-emitting element belongs is provided by a pixel data storage signal. A control method of a light-emitting element array circuit capable of reducing ghosting, for controlling a light-emitting element array, wherein the light-emitting element array includes a plurality of light-emitting elements arranged as a plurality of scan lines and a plurality of data lines, Wherein, the forward ends of the plurality of light-emitting elements in each scan line are commonly coupled to a scan node, and the backward ends of the plurality of light-emitting elements in each data line are commonly coupled to a data node; the The control method of the light-emitting element array circuit that can reduce ghosting includes: In a frame, according to the arrangement sequence of the plurality of scan lines, the plurality of scan nodes are electrically connected to a scan-on voltage in turn and without overlapping; when the scan nodes are electrically connected to the scan-on voltage, according to a a data operation signal to provide a preset dimming level to allow the preset data node to determine to light the light-emitting element and its brightness corresponding to the data node; During the charging period, a pre-charge level is provided to the preset at least one of the data nodes; wherein the data node corresponding to the preset dimming level is switched from providing the preset dimming level to the data node corresponding to the preset dimming level. The data node, to the data node corresponding to the light-emitting element to be lit in the scan line of the next order, from not providing the default dimming bit to the corresponding data node, and instead providing the default dimming bit There is a dead time between the corresponding data nodes; wherein the predetermined precharge period is related to the dead time. The control method of a light-emitting device array circuit capable of reducing ghost images as claimed in claim 52, wherein a pre-charge level is provided to at least one of the predetermined ones during a predetermined pre-charge period according to a pre-charge signal The step of the data node includes: in a normal precharge mode, according to the precharge signal, using a plurality of the idle times in the frame as a plurality of the predetermined precharge periods, and in a plurality of the predetermined precharge periods During the charging period, the precharge level is provided to all the data nodes. The control method of a light-emitting device array circuit capable of reducing ghost images as claimed in claim 52, wherein a pre-charge level is provided to at least one of the predetermined ones during a predetermined pre-charge period according to a pre-charge signal The step of the data node includes: in an energy saving precharge mode, storing a signal according to a pixel data, and in the frame, the idle time before lighting the preset light-emitting element is used as the preset precharge period; And in the preset precharge period, a plurality of precharge switches are controlled respectively, so as to electrically connect the data node of the data line to which the light emitting element previously lit by the preset light emitting element belongs to the precharge level ; wherein the pixel data storage signal is used to indicate the timing arrangement of lighting a plurality of the light-emitting elements; wherein a plurality of the precharge switches are correspondingly coupled to a plurality of the data nodes. The control method of a light-emitting device array circuit capable of reducing ghost images as claimed in claim 52, wherein a pre-charge level is provided to at least one of the predetermined ones during a predetermined pre-charge period according to a pre-charge signal The steps of the data node include: in a first performance precharge mode, according to the precharge signal, with each of the gap times in the frame and immediately before each of the gap times in the frame A performance time of is used as the preset precharge period, and the precharge bit is provided for all the data nodes during the preset precharge period. The control method of a light-emitting device array circuit capable of reducing ghost images as claimed in claim 52, wherein a pre-charge level is provided to at least one of the predetermined ones during a predetermined pre-charge period according to a pre-charge signal The step of the data node includes: in a second performance pre-charge mode, storing a signal according to a pixel data, and in the frame, in the blank time before lighting the preset light-emitting element and immediately adjacent to the The performance time before the neutral time is used as the preset pre-charge period; and during the preset pre-charge period, a plurality of pre-charge switches are controlled respectively, so as to assign the light-emitting element previously lit by the preset light-emitting element to which the light-emitting element belongs. The data node of the data line is electrically connected to the precharge level; wherein the pixel data storage signal is used to indicate the timing arrangement of lighting a plurality of the light-emitting elements; wherein a plurality of the precharge switches are correspondingly coupled to a plurality of the data node. The control method of the light-emitting element array circuit capable of reducing ghosting as described in claim 52, further comprising: in a pre-charge charge sharing mode, in the frame, before lighting the preset light-emitting element During a previous period of the idle time, a plurality of precharge switches are respectively controlled, so as to connect the data node of the data line to which the light-emitting element previously lit by the preset light-emitting element belongs to the data node of the data line to which the light-emitting element belongs to the preset light-emitting element. The data nodes of the data line are electrically connected to each other to achieve charge sharing between the two data nodes; wherein a plurality of the precharge switches are correspondingly coupled to a plurality of the data nodes; wherein the predetermined light-emitting element is previously lit The data node of the data line to which the light-emitting element belongs is provided by a pixel data storage signal.

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