TWI608466B - Pixel array device and segment driving method - Google Patents

Description

Pixel array device and segmentation driving method

The present invention relates to a driving method of a display panel, and more particularly to a segment driven pixel array device and a segment driving method.

In recent years, environmental awareness has gradually risen, and energy conservation and carbon reduction have become important issues at present. Therefore, in addition to improving the display quality and display technology of display panels, various manufacturers pay considerable attention to the energy saving of display panels.

Conventionally, the display panel may include a plurality of pixel units, a plurality of scan lines, and a plurality of data lines. In a conventional architecture, a plurality of pixel units may be arranged in a matrix, and each pixel unit is electrically coupled to one of the plurality of scan lines and one of the plurality of data lines. In the driving method of the conventional display panel, the scan lines can sequentially receive the scan signals, so that the plurality of pixel units of each column can be sequentially displayed according to the gray scale data received by the data lines, thereby Complete the screen display of the display panel.

In a driving structure of a conventional display panel, a plurality of pixel units in the same column are synchronously driven by being electrically coupled to the same scanning line, and each pixel unit is required to reload gray scale data once it is driven. To avoid displaying errors. Therefore, in the driving method of the conventional display panel, the display panel still needs to update the gray scale data to each pixel unit through the data line, regardless of whether the gray scales of the respective pixel units are required to be displayed at the current point and the previous time point.

In one embodiment, a pixel array includes a plurality of data lines, a plurality of pixel units, at least one segment drive unit, and a control unit. The plurality of pixel units are arranged in an array, and each pixel unit is electrically coupled to one of the plurality of data lines. Each segment driving unit is electrically coupled to at least one pixel unit adjacent to and electrically coupled to different complex data lines. The control unit determines whether the first gray scale data corresponding to each pixel unit electrically coupled by each segment driving unit is the same as the second gray scale data corresponding to the previous time point. When the first gray scale data corresponding to the pixel unit electrically coupled to the segment driving unit is the same as the second gray scale data corresponding to the previous time point, the control unit disables the segment driving unit. So that the segment driving unit does not drive the electrically coupled pixel units to load the corresponding first gray scale data via the electrically coupled data lines. When the first gray scale data corresponding to any pixel unit electrically coupled to the segment driving unit is different from the second gray scale data corresponding to the previous time point, the control unit enables the segment driving. And a unit, wherein each pixel unit electrically coupled to the segment driver is loaded with the corresponding first gray scale data via the electrically coupled data line.

In an embodiment, a segment driving method includes receiving at least one first grayscale data corresponding to at least one pixel unit at a current time point, and reading at least one pixel unit from the storage unit at a previous time point. At least one second grayscale data, and determining whether the first grayscale data corresponding to each pixel unit is the same as the second grayscale data. The at least one pixel unit is electrically coupled to the segment driving unit. When the first gray scale data corresponding to each pixel unit is the same as the second gray scale data, the segment driving unit is disabled, so that the segment driving unit does not drive each pixel unit to load the corresponding first gray scale data. . And when the first gray scale data corresponding to the second gray scale data is different from the second gray scale data, the segment driving unit is enabled to enable the segment driving unit to drive each pixel unit to load the corresponding first gray. Order data.

In summary, the pixel array device and the segment driving method of the embodiment of the present invention divide a pixel unit on each scan line into segments and determine whether gray scale data corresponding to each pixel unit in each segment needs to be updated. And input grayscale data when it needs to be updated, to refresh the display image in sections, thereby saving unnecessary power consumption.

The detailed features and advantages of the present invention are described in detail in the embodiments of the present invention. The objects and advantages associated with the present invention can be readily understood by those skilled in the art.

1 is a schematic diagram of an embodiment of a pixel array device. Referring to FIG. 1, the pixel array device 100 includes a plurality of data lines D1-D4, a plurality of pixel units P11-P24, at least one segment driving unit E11-E22, and a control unit 110.

The pixel units P11-P24 are arranged in an array, and each of the pixel units P11-P24 is electrically coupled to one of the data lines D1-D4. For example, the pixel units P11 and P21 of the first row are electrically coupled to the data line D1, and the pixel units P12 and P22 of the second row are electrically coupled to the data line D2. The pixel units P13 and P23 of the third row are electrically coupled to the data line D3, and the pixel units P14 and P24 of the fourth row are electrically coupled to the data line D4. And, and so on.

Each of the segment driving units E11-E22 is electrically coupled to at least one pixel unit adjacent to and electrically coupled to the different data lines D1-D4. For convenience of description, the following is an example in which each segment driving unit is electrically coupled to two pixel units, but the number is not limited by the present invention. Here, the segment driving unit E11 is electrically coupled to the same column and adjacent pixel units P11-P12. The segment driving unit E12 is electrically coupled to the same column and adjacent pixel units P13-P14. The segment driving unit E21 is electrically coupled to the same column and adjacent pixel units P21-P22. The segment driving unit E22 is electrically coupled to the same column and adjacent pixel units P23-P24. And, and so on.

In other words, each of the segment drive units E11/E12/E21/E22 is electrically connected to at least one of the pixel units P11-P12/P13-P14/P21-P22/P23-P24 to form a display segment.

The control unit 110 is electrically coupled to each of the segment drive units E11-E22. In addition, the control unit 110 can be electrically coupled to a front stage circuit (not shown), such as a data driving circuit, and receive gray scale data corresponding to each pixel unit P11-P24 from the front stage circuit.

During the display process, the control unit 110 confirms whether there is a change in the grayscale data of each display section to decide whether to update. In this case, the control unit 110 can be based on the gray scale data corresponding to each pixel unit P11-P24 electrically coupled to each of the segment driving units E11-E22 at the current time point (hereinafter referred to as the first gray level data I11- I14) and the gray scale data corresponding to the previous time point (hereinafter referred to as the second gray scale data I21-I24) to determine whether to activate the segment driving units E11-E22 to drive the respective pixels of the electrical coupling. The units P11-P24 reload the corresponding first gray scale data I11-I14 via the electrically coupled data lines D1-D4.

In the pixel array device 100, the circuit configuration and operation of each of the segment drive units E11-E22 are substantially the same. For clarity of explanation, the following description will be made with one sector drive unit E11.

2 is a schematic flow chart of an embodiment of a segment driving method.

Referring to FIG. 1 and FIG. 2, for the segment driving unit E11, the control unit 110 receives the first grayscale data I11, I12 corresponding to all the electrically coupled pixel units P11 and P12 of the segment driving unit E11 at the current time point. (Step S100), and the control unit 110 reads out the second gray scale data I21, I22 corresponding to the pixel units P11, P12 at the previous time point (step S200). Then, the control unit 110 determines whether the first gray scale data I11, I12 and the second gray scale data I21, I22 corresponding to the respective pixel units P11, P12 are the same (step S300).

In an embodiment of step S300, the control unit 110 is to use the first gray scale data I11 and I12 corresponding to the pixel units P11 and P12 and the second gray scale data I21 corresponding to each of the pixel units P11 and P12. I22 is compared. In other words, the control unit 110 compares the first gray scale data I11 corresponding to the pixel unit P11 with the second gray scale data I21, and the second gray scale data I12 corresponding to the pixel unit P12. The data I22 is compared to determine whether the gray levels of the two pixel units P11 and P12 respectively need to be displayed at the current time point and the previous time point.

When the control unit 110 determines that the first gray scale data I11 and I12 corresponding to the pixel units P11 and P12 electrically coupled to the segment driving unit E11 are the same as the second gray scale data I21 and I22 (ie, the pixel unit P11) When the corresponding first gray scale data I11 is the same as the second gray scale data I12, and the first gray scale data I21 corresponding to the pixel unit P12 is the same as the second gray scale data I22, the pixel units P11 and P12 are represented. The gray level to be displayed at the current time point is the same as the gray level displayed at the previous time point. At this time, the control unit 110 disables the segment driving unit E11 (step S400) so that the segment driving unit E11 does not drive the pictures. The prime units P11 and P12 load the corresponding first gray scale data I11 and I12 via the corresponding data lines D1 and D2, that is, no new gray scale data is loaded.

On the contrary, when the control unit 110 determines that the first gray scale data I11 and I12 corresponding to any of the pixel units P11 and P12 electrically coupled to the segment driving unit E11 is different from the second gray scale data I21 and I22 (ie, When the first gray scale data I11 corresponding to the pixel unit P11 is different from the second gray scale data I12, and/or the first gray scale data I21 corresponding to the pixel unit P12 is different from the second gray scale data I22, The gray scales indicating that the pixel units P11 and P12 are to be displayed at the current time point are not the same as the gray scales displayed at the previous time point. At this time, the control unit 110 enables the segment driving unit E11 (step S500) to make the area. The segment driving unit E11 drives the pixel units P11 and P12 to load the corresponding first gray scale data I11 and I12 via the corresponding data lines D1 and D2, that is, load new gray scale data to update the display screen of the display segment. .

In an embodiment, the pixel array device 100 may further include a storage unit 120. The at least one second gray scale data I21-I24 corresponding to the pixel units P11-P24 at the previous time point can be stored in the storage unit 120 for the control unit 110 to read out from the storage unit 120 when compared. . In another embodiment, the storage unit 120 can also be used to store multiple grayscale data of different pixel units P11-P24 at different points in time.

In some embodiments, the control unit 110 can be a micrometers IC (or micro-IC), but the invention is not limited thereto. In some embodiments, control unit 110 and data drive circuitry are implemented in the same or different micro-integrated circuits.

In some embodiments, each of the segment drive units E11-E22 has a control pin, and the control pins of each of the segment drive units E11-E24 are electrically coupled to the control unit 110. Each of the segment drive units E11-E22 can determine whether to drive the electrically coupled pixel units P11-P24 according to the signal (the disable signal Sd or the enable signal Se) received by the control pin. The pixel units P11-P12/P13-P14/P21-P22/P23-P24 located in the same display section may not be driven at the same time (i.e., segment drive).

In some embodiments, the control pins of each of the segment driving units E11-E22 can be electrically coupled to the control unit 110 independently. In other words, the control unit 110 can output the disable signal Sd or the enable signal Se to the control pins of the segment drive units E11-E22 via different wires. In other embodiments, the pixel units E11-E22 adjacent to each other and electrically coupled to the pixel units P11-P24 located in different columns may be electrically coupled to the control unit 110 by the same wiring. For example, as shown in FIG. 1, the control pin of the segment driving unit E11 and the control pin of the segment driving unit E21 can be electrically coupled to the control unit 110 by the same wiring, and the control of the segment driving unit E12. The pin and the control pin of the segment driving unit E22 can be electrically coupled to the control unit 110 by sharing the same wire.

In some embodiments, the segment driving units E11-E12 can generate the scanning signal Ss in response to the enable signal Se, and the scanning signal Ss is not generated in response to the disable signal Sd.

FIG. 3 is a schematic flow chart of an embodiment of step S400 in FIG. Referring to FIG. 1 to FIG. 3, in an embodiment of step S400, the control unit 110 determines the first grayscale data I11 corresponding to each of the pixel units P11 and P12 electrically coupled to the segment driving unit E11, When I12 is the same as the second gray scale data I21, I22, the control unit 110 generates the disable signal Sd to the sector drive unit E11 (step S410). The segment drive unit E11 receives the disable signal Sd and does not output the scan signal Ss to the pixel units P11 and P12 according to the disable signal Sd (step S420), so that the pixel units P11 and P12 cannot be loaded according to the scan signal Ss. The corresponding first gray scale data I11, I12 are entered.

FIG. 4 is a schematic flow chart of the second embodiment of step S500 of FIG. 2. Referring to FIG. 1 to FIG. 4, in an embodiment, when the control unit 110 determines the first grayscale data I11, I12 corresponding to any of the pixel units P11 and P12 electrically coupled to the segment driving unit E11, When the second gray scale data I21, I22 are different, the control unit 110 generates the enable signal Se to the segment drive unit E11 (step S510). The segment drive unit E11 receives the enable signal Se and outputs the scan signal Ss to the pixel units P11 and P12 according to the enable signal Se (step S520), so that the pixel units P11 and P12 are loaded according to the scan signal Ss. The first gray scale data I11, I12 (step S530).

In some embodiments, the enable signal Se and the disable signal Sd can be two different levels of the same control signal. For example, the control unit 110 can disable the segment driving unit E11 by using a low-level control signal, and enable the segment driving unit E11 with a high-level control signal, but the invention is not limited thereto.

FIG. 5 is a schematic flow chart of an embodiment of step S520 in FIG. Figure 6 is a schematic diagram of a first embodiment of a segment drive unit. FIG. 7 is a waveform diagram of an embodiment of the communication number Q1, the scanning signal Ss, and the voltage stabilization signal P in FIG.

Referring to FIG. 1 to FIG. 6, in an embodiment, each segment driving unit E11 may include at least two transistors (hereinafter referred to as a first transistor M1 and a second transistor M2, respectively).

In each of the segment drive units E11, the first end of the first transistor M1 is electrically coupled to the control unit 110, and the control end of the first transistor M1 receives a pilot communication number Q1. The second end of the second transistor M2 is electrically coupled to a ground voltage gnd, and the control terminal of the second transistor M2 receives a regulated voltage P. The second end of the first transistor M1 and the first end of the second transistor M2 are connected to each other to output a scan signal Ss to the pixel units P11, P12. Here, the first end of the first transistor M1 is the control pin of the segment drive unit E11 described above.

When the control unit 110 enables the segment driving unit E11, the control unit 110 outputs the enable signal Se to the first end of the first transistor M1 (ie, the control pin of the segment driving unit E11) to cause the segment driving unit. E11 drives the respective pixel units P11, P12 according to the pilot signal number Q1 and the voltage-stamping signal P to generate the scanning signal Ss (step 520a).

In some embodiments, as shown in FIG. 7, the conduction signal number Q1 and the voltage stabilization signal P have an on period (high level) and an off period (low level), respectively, and the conduction period of the communication number Q1 is a voltage stabilization signal. The conduction periods of P are staggered with each other. In other words, when the pilot signal Q1 turns on the first transistor M1 of the segment driving unit E11, the voltage stabilizing signal P can disable the second transistor M2 of the segment driving unit E11, and when the voltage stabilizing signal P turns on the segment driving unit When the second transistor M2 of E11 is used, the communication number Q1 can disable the first transistor M1 of the segment driving unit E11, thereby enabling the segment driving unit E11 to output to the level of the pixel units P11 and P12 (scanning) Signal Ss) is more stable.

For example, when the control unit 110 enables the segment driving unit E11 (ie, the first terminal of the first transistor M1 receives the enable signal Se), the communication number Q1 turns on the first transistor M1, and the voltage stabilization signal P The second transistor M2 is disabled, so that the interface between the first transistor M1 and the second transistor M2 outputs the scanning signal Ss to the pixel units P11, P12. On the contrary, when the control unit 110 disables the segment driving unit E11 (ie, the first terminal of the first transistor M1 receives the disable signal Sd), the communication number Q1 disables the first transistor M1, and the voltage stabilization signal P is turned on. The second transistor M2 is such that the interface between the first transistor M1 and the second transistor M2 does not output the scanning signal Ss to the pixel units P11, P12.

Referring to FIG. 1 to FIG. 7 , in an embodiment, when the control signal received by the first end of the first transistor M1 is the enable signal Se (ie, the segment drive unit E11 is enabled), the segment drive The scanning signal Ss outputted by the unit E11 during the conduction period of the communication number Q1 can be a high level to drive the electrically coupled pixel units P11 and P12 to load the first gray level via the corresponding data lines D1 and D2. Information I11, I12. On the contrary, when the control signal received by the first end of the first transistor M1 is the disable signal Sd (ie, the segment driving unit E11 is disabled), the segment driving unit E11 outputs during the conduction period of the communication number Q1. The scan signal Ss is a low level, and the first gray scale data I11, I12 are loaded by the pixel units P11 and P12 that do not drive the electrical coupling.

In addition, the on-period of each signal is indicated by a high level, and the off-period of each signal is indicated by a low level, but the invention is not limited thereto.

In an embodiment, each of the pixel units P11-P12 includes a pixel switch Mp and a storage capacitor Cst. The control terminal of the pixel switch Mp is electrically coupled to the second end of the first transistor M1 and the first end of the second transistor M2. The first end of the pixel switch Mp is electrically coupled to the corresponding data line D1/D2, and receives gray scale data from the data line D1/D2. The storage capacitor Cst is electrically coupled between the second end of the pixel switch Mp and the ground. When the control terminal of the pixel switch Mp receives the high-level scan signal Ss, the pixel switch Mp is turned on to load the first gray-scale data I11/I12 to the storage capacitor Cst.

FIG. 8 is a schematic diagram showing a second embodiment in which the segment driving unit E11 is taken as an example. FIG. 9 is a waveform diagram of an embodiment of the communication number, the scanning signal, and the voltage stabilization signal of FIG. 8. Referring to FIG. 1 to FIG. 5, FIG. 8 and FIG. 9, in an embodiment, the segment driving unit E11 may further include a capacitor C1. In the segment driving unit E11, the capacitor C1 is electrically coupled between the control end of the first transistor M1 and the second end of the first transistor M1. For example, the first end of the capacitor C1 is electrically coupled. The second end of the first transistor M1 and the second end of the second transistor M2 are electrically coupled to the second end of the first transistor M1. Here, the capacitor C1 can be used to raise the level of the conduction number Q1 input to the control terminal of the first transistor M1. For example, when the control unit 110 outputs the disable signal Sd, the communication number Q1 can be a high level, and the level of the communication number Q1 can be a first value V1. Then, when the control unit 110 outputs the enable signal Se, the level of the communication number Q1 can be raised to a second value V2 by the capacitor C1, thereby making the second end and the second through the first transistor M1. The level of the scanning signal Ss outputted by the first end of the transistor M2 may not be affected by the threshold voltage of the first transistor M1. Here, the first value V1 is smaller than the threshold voltage of the first transistor M1, and the second value V2 is greater than the sum of the threshold voltage of the first transistor M1 and the first value V1, but the present invention is not limited thereto.

10 is a schematic diagram of a third embodiment of the segment driving unit E11, and FIG. 11 is an embodiment of the communication number, the scanning signal, the voltage stabilization signal, the clock signal, and the inverse clock signal in FIG. Waveform diagram.

In some embodiments, the segment driving unit E11 may further include a third transistor M3. In the segment driving unit E11, the first end of the third transistor M3 is electrically coupled to the junction of the second transistor M2 and the first transistor M1 (eg, the second end of the first transistor M1 and The first end of the second transistor M2). In other words, in the embodiment, the first end of the third transistor M3 is also electrically coupled to the second end of the capacitor C1. The first end of the capacitor C1 is electrically coupled to the control end of the first transistor M1 and the communication number. Q1. The second end of the third transistor M3 is electrically coupled to the ground voltage gnd. The control terminal of the third transistor M3 is electrically coupled to an inverse clock signal XCK. The anti-clock signal XCK is inverted to a clock signal CK. Here, the third transistor M3 and the inverse clock signal XCK can be used to assist the stable segment driving unit E11 to output the level of the scanning signal Ss to the pixel units P11-P12.

In an embodiment, the conduction numbers Q1-Q2 of the control terminals of the first transistor M1 provided to the segment drive units E11-E22 may be generated by the gate drive circuit 130 or an additionally provided signal generator.

In an embodiment, referring to FIG. 1 , the pixel array device 100 further includes at least one gate driving circuit 130 , and each gate driving circuit 130 is electrically coupled to the at least one segment driving unit E11-E22. At least one. The gate driving circuit 130 can be used to generate the conduction number Q1-Q2 and output the conduction number Q1-Q2 to the control terminal of the first transistor M1 of the at least one segment driving unit E11-E22.

In some embodiments, the pixel array device 100 can further include a plurality of scan lines G1-G2. Scan lines G1-G2 are interleaved on data lines D1-D4 to define a plurality of pixel areas A. The pixel units P11-P24 are located in the pixel areas A, respectively. Each of the scan lines G1-G2 is electrically coupled to the gate drive circuit 130 and the corresponding segment drive unit E11-E22. For example, the scan line G1 is electrically coupled between the gate drive circuit 130 and the segment drive units E11-E12 of the first column. The scan line G2 is electrically coupled between the gate drive circuit 130 and the segment drive units E21-E22 of the second column. And, and so on. In other words, the pixel units P11-P14 of the same column are electrically connected to the same scan line G1-G2 via the respective corresponding segment drive units E11-E12. For example, the scan line G1 is electrically coupled to all of the segment drive units E11-E12 of the first column. The scan line G2 is electrically coupled to all of the segment drive units E21-E22 of the second column. And, and so on. That is, the pixel units P11-P14 of the first column are electrically connected to the scan line G1 via the respective corresponding segment drive units E11-E12. The pixel units P21-P24 of the second column are electrically connected to the scanning line G2 via respective corresponding segment driving units E21-E22. And, and so on.

Here, the conduction number Q1 generated by the gate driving circuit 130 is input to the control terminal of the first transistor M1 in the corresponding segment driving unit E11-E12 via the scanning line G1, and the generated communication number Q2 is scanned. The line G2 is input to the control terminal of the first transistor M1 of the corresponding sector drive unit E21-E22.

In addition, in some embodiments, the gate driving circuit 130 can be further used to generate the voltage stabilizing signal P, and the gate driving circuit 130 is electrically coupled and outputs the voltage stabilizing signal P to the segment driving unit E11-E22. The control terminal of the second transistor M2.

In an embodiment, the gate driving circuit 130 can be activated according to a clock signal CK, and generate the conduction number Q1-Q2 and the voltage stabilization signal P according to the clock signal CK.

In some embodiments, before step S520 or step S520a, the pixel array device 100 can generate the conduction number Q1-Q2 and the voltage stabilization signal P to the segment driving units E11-E22 by using the gate driving circuit 130, so that each After the segment drive unit E11-E22 is enabled, the scan signal Ss can be generated according to the conduction signal number Q1-Q2 and the voltage stabilization signal P to drive the electrically coupled pixel units P11-P24 to load the corresponding first gray scale. Information I11-I14.

In some embodiments, the gate driving circuit 130 can be a GOA (Gate On Array) circuit, but the invention is not limited thereto, and the gate driving circuit 130 can also be any suitable signal generator.

It should be noted that although the above, the segment driving units E11-E22 are electrically coupled to the two pixel units P11-P24 (ie, the segment driving units E11-E22 are used to drive the two pixel units P11-P24). For example, the present invention is not limited thereto. For example, as shown in FIG. 12, the number of segment driving units E11-E22 may be the same as the number of pixel units P11-P22, and each segment driving unit The E11-E22 is electrically coupled to the corresponding pixel units P11-P22 in a one-to-one manner. Alternatively, each of the segment driving units E11-E22 may be electrically coupled to three or more pixel units P11-P24. The number of pixel units P11-P24 electrically coupled to each of the segment drive units E11-E22 is the same, but the invention is not limited thereto. In other words, the number of pixel units P11-P24 electrically coupled to each of the segment driving units E11-E22 may also be different from each other.

In summary, the pixel array device and the segment driving method of the embodiment of the present invention divide a pixel unit on each scan line into segments and determine whether gray scale data corresponding to each pixel unit in each segment needs to be updated. And input grayscale data when it needs to be updated, to refresh the display image in sections, thereby saving unnecessary power consumption.

Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention are encompassed by the present invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

100‧‧‧ pixel array device

110‧‧‧Control unit

120‧‧‧ storage unit

130‧‧ ‧ gate drive circuit

C1‧‧‧ capacitor

CK‧‧‧ clock signal

Cst‧‧‧ storage capacitor

D1-D4‧‧‧ data line

E11-E24‧‧‧ Section Drive Unit

G1-G2‧‧‧ scan line

Gnd‧‧‧ ground voltage

I11-I14‧‧‧ first grayscale data

I21-I24‧‧‧second grayscale data

M1‧‧‧first transistor

M2‧‧‧second transistor

M3‧‧‧ third transistor

Mp‧‧ pixel switch

P‧‧‧ voltage regulator signal

P11-P24‧‧‧ pixel unit

Ss‧‧‧ scan signal

Sd‧‧‧ disable signal

Se‧‧‧ enable signal

Q1-Q2‧‧‧Direction number

XCK‧‧‧ anti-clock signal

A‧‧‧ pixel area

V1‧‧‧ first value

V2‧‧‧ second value

S100~S530‧‧‧Steps

1 is a schematic diagram of an embodiment of a pixel array device. 2 is a schematic flow chart of an embodiment of a segment driving method. FIG. 3 is a schematic flow chart of an embodiment of step S400 in FIG. FIG. 4 is a schematic flow chart of the first embodiment of step S500 of FIG. 2. FIG. 5 is a schematic flow chart of an embodiment of step S520 in FIG. 7. Figure 6 is a schematic diagram of a first embodiment of a segment drive unit. FIG. 7 is a waveform diagram of an embodiment of the communication number, the scanning signal, and the voltage stabilization signal of FIG. 6. Figure 8 is a schematic diagram of a second embodiment of a segment drive unit. FIG. 9 is a waveform diagram of an embodiment of the communication number, the scanning signal, and the voltage stabilization signal of FIG. 8. Figure 10 is a schematic diagram of a third embodiment of a segment drive unit. 11 is a waveform diagram of an embodiment of the pilot communication number, the scan signal voltage stabilization signal, the clock signal, and the inverse clock signal in FIG. Figure 12 is a schematic diagram of another embodiment of a pixel array device.

S100~S500‧‧‧Steps

Claims (12)

A pixel array device comprising: a plurality of data lines; a plurality of pixel units arranged in an array, electrically coupled to one of the plurality of data lines; at least one segment driving unit, each of the segment driving units being electrically coupled And at least one pixel unit adjacent to the plurality of pixel units and electrically coupled to the plurality of data lines; and a control unit determining that each of the pixel units electrically coupled to each of the segment driving units is Whether the first gray scale data corresponding to the current time point is the same as the second gray scale data corresponding to the previous time point; wherein the control unit disables the segment drive unit when determining the same, so that the area is The segment driving unit does not drive the corresponding pixel unit to load the corresponding first grayscale data via the corresponding data line; and wherein the control unit enables the segment driving unit when determining that the segment driving unit is different And causing each of the pixel units corresponding to the segment driving unit to drive the corresponding first gray scale data via the corresponding data line. The pixel array device of claim 1, wherein each of the segment driving units comprises: a first transistor, the first end of the first transistor is electrically coupled to the control unit, the first transistor The second end is electrically coupled to the corresponding at least one pixel unit, and the control end of the first transistor is electrically coupled to the first communication signal; and the second transistor is electrically connected to the first end of the second transistor. The second end of the first transistor is electrically coupled to the corresponding at least one pixel unit, and the second end of the second transistor is electrically coupled to a ground The control terminal of the second transistor is electrically coupled to a voltage stabilizing signal, wherein an on period of the conduction signal is interleaved with an on period of the voltage stabilization signal. The pixel array device of claim 2, wherein each of the segment driving units further comprises: a capacitor electrically coupled to the control end of the first transistor and the second end of the first transistor Between, to raise the level of the communication number. The pixel array device of claim 2, further comprising: at least one gate driving circuit, each of the gate driving circuits electrically coupled to output the communication signal to the control terminal of the at least one first transistor, And each of the gate driving circuits is electrically coupled to and outputs the voltage stabilizing signal to the control terminal of the at least one second transistor. The pixel array device of claim 4, wherein the at least one gate driving circuit generates the communication signal according to a clock signal, and each of the segment driving circuits further comprises: a third transistor, the third transistor The first end is electrically coupled to the second end of the first transistor, the first end of the second transistor, and the corresponding at least one pixel unit, and the second end of the third transistor is electrically The control circuit of the third transistor is electrically coupled to an inverse clock signal, wherein the inverse clock signal is inverted to the clock signal. The pixel array device of claim 1, further comprising: at least one gate driving circuit, each of the gate driving circuits electrically coupled to at least one of the at least one segment driving unit. A segment driving method includes: receiving at least one first gray level data corresponding to at least one pixel unit at a current time point, wherein the at least one pixel unit is electrically coupled to a segment area moving unit; Reading, by a storage unit, at least one second gray level data corresponding to the at least one pixel unit at a previous time point; determining whether the first gray level data and the second gray level data corresponding to each pixel unit are When the first gray scale data corresponding to each pixel unit is the same as the second gray scale data, the segment driving unit is disabled, so that the segment driving unit does not drive each pixel unit Entering the corresponding first grayscale data; and when the first grayscale data corresponding to any of the pixel units is different from the second grayscale data, enabling the segment driving unit to make the region The segment driving unit drives each of the pixel units to load the corresponding first gray scale data. The segment driving method of claim 7, wherein the step of disabling the segment driving unit comprises: generating a disable signal to the segment driving unit; and the segment driving unit does not according to the disable signal A scan signal is output to each of the pixel units, so that each pixel unit cannot load the corresponding first gray scale data according to the scan signal. The segment driving method of claim 7, wherein the step of enabling the segment driving unit comprises: generating a consistent energy signal to the segment driving unit; and generating, by the segment driving unit, a scan according to the enabling signal The signal is given to each of the pixel units; and the corresponding pixel unit loads the corresponding first gray level data according to the scanning signal. The segmentation driving method according to claim 9, further comprising: Using a gate driving circuit to generate a pilot signal and a voltage stabilizing signal to the segment driving unit, the conducting period of the pilot signal is interleaved with the conducting period of the voltage stabilizing signal; wherein the step of generating the scan signal includes: The segment driving unit generates the scanning signal according to the enabling signal, the guiding communication number and the voltage stabilization signal. The segment driving method of claim 7, further comprising: generating a conduction signal and a voltage stabilization signal to the segment driving unit by using a gate driving circuit, and conducting the conduction period of the conduction signal and the conduction of the voltage stabilization signal Interleaving; wherein the step of driving each of the pixel units comprises: driving, by the segment driving unit, each of the pixel units according to the conduction signal and the voltage stabilization signal. The segment driving method of claim 7, wherein the at least one pixel unit is electrically coupled to different data lines.