TWI620167B - Display device and driving method thereof - Google Patents

Abstract

A driving method of a display device. The display device includes a plurality of data lines and a plurality of scan lines. A plurality of data lines intersect with a plurality of scan lines to form a plurality of pixels. The driving method includes the steps of: calculating a plurality of grayscale differences between adjacent two frames of a plurality of data voltages input to each of the plurality of pixels through each data line; and calculating a plurality of data according to the plurality of grayscale differences The line inputs a total grayscale difference between two adjacent frames of the plurality of data voltages of the plurality of pixels; determines a driving mode corresponding to the total grayscale difference; and drives the display device according to the driving mode.

Description

Display device and driving method thereof

The present invention relates to a display device and a driving method thereof, and particularly to a display device and a driving method thereof for selecting different driving modes in response to different attachments.

With the rapid development of display devices, people can use display devices of various sizes at any time, such as mobile phones, computers, etc., at any time. When the display device is used, different power consumption is generated each time the screen of the display device changes, and the power consumption directly affects people's concerns about using the display device.

The various components of the display device are often integrated through precision design to ensure better display while reducing power consumption. A large number of scan driving circuits and data driving circuits need to be provided in the display device to drive respective pixels in the display device. Compared with the data driving circuit, the cost and power consumption of the scan driving circuit are relatively low, so that the number of data lines can be reduced by rational design, thereby using less data to drive the chip, thereby reducing the power consumption of the display device. the goal of.

For example, the prior art half source drive HSD (Half Source Driving) The left and right adjacent sub-pixels of the pixel array share one data line, so that the number of data lines is halved compared to the number of data lines of the conventional display device. Adjacent sub-pixels in the same row are connected to different scan lines, and sub-pixels separated by one sub-pixel in the same row are connected to the same scan line, so that the number of scan lines is doubled compared with the number of scan lines of the conventional display device to reduce The power consumption of the display device.

However, since the number of scanning lines is doubled, the scanning time allocated to the scanning line is reduced, so that the charging time of each pixel is reduced. Since the data line has a certain impedance, the voltage signal will cause delay distortion of the waveform during the transmission process, and cause a difference in the charging rate of each pixel, resulting in a bright dark line.

Therefore, as people pay more and more attention to the problem of power saving and energy saving, how to reduce the power consumption of the display device without reducing the performance of the display device is one of the problems to be improved in the field.

One aspect of the present invention is to provide a driving method of a display device. The display device includes a plurality of data lines and a plurality of scan lines. A plurality of data lines intersect with a plurality of scan lines to form a plurality of pixels. The driving method includes the steps of: calculating a plurality of grayscale differences between adjacent two frames of a plurality of data voltages input to each of the plurality of pixels through each data line; and calculating a plurality of data according to the plurality of grayscale differences The line inputs a total grayscale difference between two adjacent frames of the plurality of data voltages of the plurality of pixels; determines a driving mode corresponding to the total grayscale difference; and drives the display device according to the driving mode.

Another aspect of the present invention is to provide a display device. The display device includes a plurality of data lines, a plurality of scan lines, a data driver, a scan driver, and a controller. A plurality of scan lines intersect with a plurality of data lines to form a plurality of pixels. The data driver is used to output multiple data voltages to multiple data lines. The scan driver is configured to output a plurality of scan signals to the plurality of scan lines. The controller is configured to calculate a plurality of grayscale differences between two adjacent frames of the plurality of data voltages input to the plurality of pixels through each data line, and input the plurality of data lines to the plurality of data lines according to the plurality of grayscale difference values The total grayscale difference between two adjacent frames of the plurality of data voltages of the pixel, and determines a driving mode corresponding to the total grayscale difference, and drives the display device according to the driving mode.

Therefore, according to the technical aspect of the present invention, the embodiment of the present invention provides a display device and a driving method thereof, and particularly relates to a display device and a driving method thereof for selecting different driving modes according to different attachments, thereby effectively reducing the display. At the same time as the performance of the device, the power consumption of the display device is reduced.

100A, 100B, 200A, 200B, 200C‧‧‧ display devices

110‧‧‧Data Drive

130‧‧‧Scan Drive

150‧‧‧ Controller

170‧‧‧Active area

112‧‧‧ data controller

S1~SN‧‧‧ scan line

D1~DM‧‧‧ data line

P11~PMN‧‧‧ pixels

A1~A3‧‧‧ switch

152‧‧‧ comparator

154‧‧‧ counter

156‧‧‧Control unit

300A, 300B, 300C‧‧‧ scan signal wave

VS1, VS2, VS3‧‧‧ scan signal

T1, T2, T3‧‧‧ pulse width

400‧‧‧Drive method

S410, S430, S450, S470‧‧‧ steps

S452, S454, S456, S458, S459‧‧ steps

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood. 2 is a schematic diagram of a display device according to some embodiments of the present disclosure; FIG. 3 is a schematic diagram of a controller according to some embodiments of the present disclosure; 4 is a schematic diagram of a display device according to some embodiments of the present invention; FIG. 5 is a waveform diagram of a scanning signal wave according to some embodiments of the present invention; FIG. 6 is a diagram according to some aspects of the present invention; A schematic diagram of a display device according to an embodiment; FIG. 7 is a waveform diagram of a scanning signal wave according to some embodiments of the present invention; FIG. 8 is a display according to some embodiments of the present disclosure. FIG. 9 is a waveform diagram of a scanning signal wave according to some embodiments of the present invention; FIG. 10 is a flowchart of a driving method according to some embodiments of the present disclosure; and 11th The drawings are a flow diagram of one of the steps depicted in some embodiments of the present disclosure.

The following disclosure provides many different embodiments or illustrations for implementing different features of the invention. The elements and configurations of the specific illustrations are used in the following discussion to simplify the disclosure. Any examples discussed are for illustrative purposes only and are not intended to limit the scope and meaning of the invention or its examples. In addition, the present disclosure may repeatedly recite numerical symbols and/or letters in different examples, and these repetitions are for simplicity and elaboration, and the following discussion is not specified by itself. Relationship between different embodiments and/or configurations.

The terms used in the entire specification and the scope of the patent application, unless otherwise specified, generally have the ordinary meaning of each term used in the field, the content disclosed herein, and the particular content. Certain terms used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in the description of the disclosure.

"Coupling" or "connecting" as used herein may mean that two or more elements are in direct physical or electrical contact with each other, or indirectly in physical or electrical contact with each other, and "coupled" or " Connections may also mean that two or more elements operate or interact with each other.

The use of the terms first, second, and third, etc., is used to describe various elements, components, regions, layers and/or blocks. However, these elements, components, regions, layers and/or blocks should not be limited by these terms. These terms are only used to identify a single element, component, region, layer, and/or block. Thus, a singular element, component, region, layer and/or block may be referred to as a second element, component, region, layer and/or block, without departing from the spirit of the invention. As used herein, the term "and/or" encompasses any combination of one or more of the listed associated items. "and/or" as used in this document refers to any combination of any, all or at least one of the listed elements.

Please refer to Figure 1. FIG. 1 is a schematic diagram of a display device 100A according to some embodiments of the present disclosure. As shown in FIG. 1, the display device 100A includes a data driver 110, a scan driver 130, a controller 150, and an active area 170. Scan driver 130 outputs a scan signal to the sweep Trace lines S1~SN. The data driver 110 outputs the data voltage to the data lines D1 to DM. The active region 170 includes a plurality of pixels P11 to PMN formed by crossing the scan lines S1 to SN and the data lines D1 to DM. Each of the plurality of pixels P11 to PMN is coupled to one of the scan lines S1 to SN and one of the data lines D1 to DM. The display screen of the active area 170 changes in response to the scanning signals output to the scanning lines S1 to SN and the data voltages output to the data lines D1 to DM. The display screen of the active area 170 displays a number of frames in one second. When the data voltage input to the plurality of pixels P11 to PMN between adjacent frames changes, the display screen of the active area 170 also changes.

In some embodiments, the controller 150 calculates a plurality of grayscale differences between adjacent two frames of the plurality of data voltages input to the plurality of pixels P11 to PMN through each data line, according to the plurality of grayscale differences. Calculating a total grayscale difference between two adjacent frames of a plurality of data voltages input to the plurality of pixels P11 to PMN through the plurality of data lines D1 to DM, and determining a driving mode corresponding to the total grayscale difference, And the display device 100A is driven in accordance with the driving mode.

Please refer to Figure 2. 2 is a schematic diagram of a display device 100B according to some embodiments of the present disclosure. The display device 100B is substantially the same as the display device 100A, and only the data drive 110 of the display device 100B further includes a data controller 112. The data controller 112 is coupled to the controller 150, and the data controller 112 can control a plurality of switches in the data driver 110 to electrically connect the plurality of data lines D1 DM. For example, if the data controller 112 controls the switch A1 to be turned off, the data line D1 and the data line D2 can be electrically connected. If the data controller 112 controls the switch A1 to be turned on, the data line D1 and the data line D2 can be mutually separated. Electrical connection. If the data controller 112 controls When the switch A2 is turned off, the data line D2 and the data line D3 can be electrically connected. If the data controller 112 controls the switch A2 to be opened, the data line D2 and the data line D3 can be electrically connected to each other. The rest and so on. In addition, for convenience of drawing, the switch A3 is disposed between the data line D3 and the data line DM, but in actual operation, the switch A3 can be used to connect the data line D3 and its adjacent data line.

Please refer to Figure 3. FIG. 3 is a schematic diagram of a controller 150 according to some embodiments of the present disclosure. As shown in FIG. 3, the controller 150 includes a comparator 152, a counter 154, and a control unit 156. In some embodiments, the comparator 152 compares the grayscale difference between adjacent two frames of the data voltage input to the plurality of pixels P11 to PMN through the data lines D1 to DM, and transmits the grayscale difference value to the counter 154. .

For example, as shown in FIG. 1, the data line D1 is coupled to the pixels P11 to P1N. If the data voltages input to the pixel P11 through the data line D1 between the adjacent two frames are +1V and -1V, respectively, the comparison result of the comparator 152 is the grayscale difference value 2V. If the data voltages input to the pixel P12 through the data line D1 between the adjacent two frames are +1V and 0V, respectively, the comparison result of the comparator 152 is the grayscale difference 1V. The comparator 152 calculates a plurality of grayscale differences respectively input to the pixels P11 to P1N through the data line D1 between adjacent two frames, and transmits the calculated grayscale difference to the counter 154. The counter 154 increments the first count value by one when the grayscale difference is greater than the grayscale difference threshold. For example, if the grayscale difference value input between the adjacent two frames through the data line D1 to the pixel P11 is 2V and the grayscale difference threshold is 1V, the counter 154 increments the first count value by one. If the grayscale difference value input to the pixel P11 through the data line D1 between adjacent two frames is 0V and the grayscale difference threshold is 1V, the counter 154 does not accumulate the first count value. 1. The counter 154 compares the plurality of grayscale differences input to the pixels P11 to P1N through the data line D1 and the grayscale difference thresholds, and then calculates the first count value of the data line D1, and the counter 154 is input to the data line D2. After comparing the grayscale differences of the pixels P21~P2N with the grayscale difference thresholds, the first count value of the data line D2 is calculated, and the first count values of the remaining data lines D3~DM are deduced by analogy.

The counter 154 calculates the total grayscale difference between two adjacent frames of the plurality of data voltages input to the plurality of pixels P11 to PMN through the data lines D1 to DM. In some embodiments, the total grayscale difference is calculated by the counter 154 accumulating the second count value by one when the first count value is greater than the first count threshold, and total gray when the second count value is counted. The step value is set to the second count value. For example, suppose the plurality of data lines D1~DM are respectively connected to 900 pixels. If the first count value of the data line D1 is 900 and the first count threshold is 640, the counter 154 accumulates the second count value by one. . If the first count value of the data line D1 is 300 and the first count threshold is 640, the counter 154 does not increment the second count value by one. After comparing all of the data lines D1 DM to the first count threshold, the counter 154 calculates a second count value and sets the total gray scale difference to the second count value. That is, the counter 154 compares the first count value of each of the data lines D1 DM DM with the first count threshold value, and calculates the second count value, and the second count value is the total gray scale difference value. For example, if the first count value of each of the data lines D1 DM DM is greater than the first count threshold, the calculation result of the counter 154 is the second count value M, and the total gray scale difference value is set to M.

After the counter 154 calculates the total grayscale difference, the total grayscale difference is Transfer to control unit 156. The control unit 156 determines a drive mode corresponding to the total grayscale difference. In some embodiments, when the total grayscale difference is greater than or equal to the first total grayscale difference threshold, the control unit 156 determines that the driving mode is the first driving mode, and when the total grayscale difference is less than the first total grayscaled threshold And greater than the second total grayscale difference threshold, the control unit 156 determines that the driving mode is the second driving mode, and when the total grayscale difference is less than or equal to the second total grayscale difference threshold, the control unit 156 determines that the driving mode is the first Three drive mode.

For example, in some embodiments, the display device is 3240 data lines, the first total gray level difference threshold may be 2160, and the second total gray level difference threshold may be 1080. In detail, when the total grayscale difference is greater than or equal to 2160, the control unit 156 determines that the driving mode is the normal mode. When the total grayscale difference is less than 2160 and greater than 1080, the control unit 156 determines the driving mode. The mode is a bi-gate mode, and when the total grayscale difference is less than or equal to 1080, the control unit 156 determines that the driving mode is a tri-gate mode. The general mode, double gate mode, and three gate mode will be described below in conjunction with Figs. 4 to 9. In response to different driving modes, the controller 150 adjusts the data voltages input to the data lines D1 to DM, and adjusts the scanning signals input to the scanning lines S1 to SN. In some embodiments, controller 150 can be a clock controller.

Please refer to Figure 4 and Figure 5 together. FIG. 4 is a schematic diagram showing a display device 200A according to an embodiment of the present invention in a general mode. Fig. 5 is a waveform diagram of a scanning signal wave 300A according to an embodiment of Fig. 4 of the present invention. As can be seen from Fig. 4, when the driving mode is the normal mode, each of the plurality of data lines D1 to DM is disconnected from each other, that is, multiple pieces of data. Each of the lines D1 to DM receives a different data voltage. As can be seen from FIG. 5, when the driving mode is the normal mode, the scanning signal VS1 output to the scanning line S1 has the same pulse width T1 as the scanning signal VS2 outputted to the scanning line S2, and the pulse of the scanning signal VS1. Simultaneously with the pulse of the scan signal VS2.

Please refer to Figure 6 and Figure 7 together. FIG. 6 is a schematic diagram showing a display device 200B according to some embodiments of the present invention in a double gate mode. Fig. 7 is a waveform diagram of a scanning signal wave 300B according to an embodiment of Fig. 6 of the present invention. It can be seen from FIG. 6 that when the driving mode is the double gate mode, two adjacent data lines of the plurality of data lines D1 to DM are electrically connected to each other. For example, the data lines D1 and D2 are electrically connected to each other, and the data lines D3 and D4 are electrically connected to each other, and so on. As can be seen from FIG. 7, when the driving mode is the double gate mode, the scan signal VS1 output to the scan line S1 and the scan signal VS2 output to the scan line S2 have the same pulse width T2, and the scan signal VS1 The pulse and the pulse of the scan signal VS2 occur sequentially.

The display device 200B may be a schematic diagram when the display device 100A or 100B is in the double mode mode. For example, in some embodiments, when the driving mode is the double gate mode, the plurality of data lines D1 DM of the display device 100B are adjacent to each other by controlling a plurality of switches in the data driver 110 of the display device 100B. The two electrical connections are as shown in display device 200B.

Please refer to Figure 8 and Figure 9 together. Figure 8 is a diagram showing a display device 200C according to some embodiments of the present invention in a three-gate mode. schematic diagram. Fig. 9 is a waveform diagram of a scanning signal wave 300C according to an embodiment of Fig. 8 of the present invention. It can be seen from FIG. 8 that when the driving mode is the three-gate type mode, the adjacent three data lines of the plurality of data lines D1 to DM are electrically connected to each other. For example, the data lines D1, D2, and D3 are electrically connected to each other, and the data lines D4, D5, and D6 are electrically connected to each other, and so on. As can be seen from FIG. 9, when the driving mode is the three-gate mode, the scan signal VS1 output to the scan line S1, the scan signal VS2 output to the scan line S2, and the scan signal VS3 output to the scan line S3 have The same pulse width T3, and the pulse of the scan signal VS1, the pulse of the scan signal VS2, and the pulse of the scan signal VS3 occur sequentially.

The display device 200C may be a schematic diagram when the display device 100A or 100B is in the three-gate mode. For example, in some embodiments, when the driving mode is the three-gate mode, each of the plurality of data lines D1 DM DM of the display device 100C is caused by controlling a plurality of switches in the data driver 110 of the display device 100C. The adjacent three data lines are electrically connected, as shown by the display device 200C.

In the embodiment of the present invention, the pulse width of the scan signal of the first driving mode is greater than the pulse width of the scan signal of the second driving mode, and the pulse width of the scan signal of the second driving mode is greater than the scan of the third driving mode. The pulse width of the signal. In other embodiments, the pulse width in the second driving mode is one-half of the pulse width in the first driving mode, and the pulse width in the third driving mode is in the first driving mode. One third of the pulse width. For example, please refer to FIG. 5, FIG. 7 and FIG. 9 together, and the pulse width T2 is one-half of the pulse width T1, and The pulse width T3 is one third of the pulse width T1. For example, in some embodiments, if the control unit 156 determines that the driving mode is the normal mode, the scanning signal is as shown in FIG. If the control unit 156 determines that the drive mode is a bi-gate mode, the scan signal is as shown in FIG. If the control unit 156 determines that the drive mode is a tri-gate mode, the scan signal is as shown in FIG. In addition, the pulse width of the scan signal in the double gate mode is one-half the pulse width of the scan signal in the normal mode, and the pulse width of the scan signal in the three gate mode is the pulse width of the scan signal in the normal mode. One third of the. For example, in some embodiments, the pulse width T1 is 12.9 microseconds (μs) in the normal mode, and the pulse width T2 is 6.45 microseconds (μs) in the double gate mode, in the three-gate mode. The pulse width T3 is 4.3 microseconds (μs), but the present invention is not limited to the above numerical values, and it is only used to exemplarily illustrate one of the implementations of the present invention.

Please refer to Figure 10. FIG. 10 is a flow chart of a driving method 400 according to some embodiments of the present disclosure. As shown in FIG. 10, the driving method 400 includes the following steps: Step S410: Calculating a plurality of grayscale difference values between adjacent two frames of a plurality of data voltages input to each pixel through each data line; Step S430: Calculating a total grayscale difference between two adjacent frames of the plurality of data voltages input to the pixels through the data line according to the plurality of grayscale differences; Step S450: determining a driving mode corresponding to the total grayscale difference; And step S470: driving the display device according to the driving mode.

In order to make the driving method 400 of the embodiment of the present invention easy to understand, please refer to FIG. 1 to FIG. 9 together.

In step S410, a plurality of grayscale differences between adjacent two frames of the plurality of data voltages input to the pixels through each data line are calculated. In some embodiments, step S410 can be performed by controller 150 in FIG. 1 or 2. For example, as shown in FIG. 1, the data line D1 is coupled to the pixels P11 to P1N. If the data voltages input to the pixel P11 through the data line D1 between two adjacent frames are +1V and -1V, respectively, the calculation result of the controller 150 is a grayscale difference of 2V. If the data voltages input to the pixel P12 through the data line D1 between two adjacent frames are +1V and 0V, respectively, the calculation result of the controller 150 is a grayscale difference of 1V.

In step S430, a total grayscale difference between two adjacent frames of the plurality of data voltages input to the pixels through the data line is calculated according to the plurality of grayscale differences. In some embodiments, step S430 can be performed by controller 150 in FIG. 1 or 2. For example, when the controller 150 calculates that the grayscale difference value input to the pixel through the data line between the adjacent two frames is greater than the grayscale difference threshold, the controller 150 increments the first count value by one. After the controller 150 calculates the first count value of each of the data lines D1 DM DM, when the first count value is greater than the first count threshold, the controller 150 increments the second count value by one. When the second count value is counted, the controller 150 sets the total grayscale difference value to the second count value.

In step S450, a drive mode corresponding to the total grayscale difference is determined. In some embodiments, step S450 can be performed by controller 150 in FIG. 1 or 2.

Please refer to Figure 11. Figure 11 is based on some implementations of this case. The flowchart of step S450 is illustrated as an example. As shown in FIG. 11, step S450 includes the following steps: Step S452: determining whether the total grayscale difference is greater than or equal to the first total grayscale difference threshold; and step S454: determining whether the total grayscale difference is smaller than the first total grayscale a difference threshold and a total grayscale difference value is greater than a second total grayscale difference threshold; step S456: determining that the driving mode is the first driving mode; step S458: determining that the driving mode is the second driving mode; and step S459: determining that the driving mode is Three drive mode.

In step S452, it is determined whether the total grayscale difference value is greater than or equal to the first total grayscale difference threshold. If the result of the determination in step S452 is that the total grayscale difference is greater than or equal to the first total grayscale difference threshold, step S456 is performed. If the result of the determination in step S452 is that the total grayscale difference value is not greater than or equal to the first total grayscale difference threshold, step S454 is performed.

In step S454, it is determined whether the total grayscale difference is smaller than the first total grayscale difference threshold and the total grayscale difference is greater than the second total grayscale difference threshold. If the result of the determination in step S454 is that the total grayscale difference is smaller than the first total grayscale difference threshold and the total grayscale difference is greater than the second total grayscale difference threshold, step S458 is performed. If the result of the determination in step S454 is that the total grayscale difference is less than the first total grayscale difference threshold and the total grayscale difference is greater than the second total grayscale difference threshold, step S459 is performed.

In step S456, it is determined that the driving mode is the first driving mode. In some embodiments, the first drive mode is a normal mode. The detailed operation of the general mode is as shown in Figures 4 and 5. As described in the related content, the description will not be repeated here.

In step S458, it is determined that the driving mode is the second driving mode. In some embodiments, the second drive mode is a bi-gate mode. The detailed operation mode of the double gate mode is as described in the related contents of FIG. 6 and FIG. 7, and the description thereof will not be repeated here.

In step S459, it is determined that the driving mode is the third driving mode. In some embodiments, the third drive mode is a tri-gate mode. The detailed operation mode of the three-gate type mode is as described in the related contents of Figs. 8 and 9, and the description will not be repeated here.

Please refer back to Figure 10. In step S470, the display device is driven in accordance with the driving mode. In some embodiments, the display device 200A of FIG. 4 is a schematic diagram when the driving mode is the normal mode, and the scanning signal wave 300A of FIG. 5 is the scanning signal when the driving mode is the normal mode. In some embodiments, the display device 200B of FIG. 6 is a schematic diagram when the driving mode is the double gate mode, and the scanning signal wave 300B of FIG. 7 is the scanning signal when the driving mode is the double gate mode. In some embodiments, the display device 200C of FIG. 8 is a schematic diagram when the driving mode is the three-gate mode, and the scanning signal wave 300C of FIG. 9 is the scanning signal when the driving mode is the three-gate mode. The detailed driving manners of the general mode, the double gate mode, and the three gate mode are as described in the related drawings of FIGS. 4 to 9 and will not be repeatedly described herein.

It can be seen from the above that when the calculated total gray scale difference is large, the load representing the display device is high, and the display device is driven by the scan signal having a longer pulse width, so that the pixel has a longer charging time. Further, the degree of distortion of the picture display device is reduced. And when the calculated total grayscale difference is small, the generation The table display device has a small load, and is driven by a scan signal having a short pulse width because the display device is driven by a scan signal having a short pulse width when the load of the display device is small, and does not cause a high degree of distortion. A display device to reduce the power consumption of the display device.

It can be seen from the above embodiments of the present invention that the embodiment of the present invention provides a display device and a driving method thereof, and particularly relates to a display device and a driving method thereof for selecting different driving modes according to different attachments, thereby effectively reducing the display device. At the same time, the power consumption of the display device is reduced.

In addition, the above examples include exemplary steps in sequence, but the steps are not necessarily performed in the order shown. Performing these steps in a different order is within the scope of the present disclosure. Such steps may be added, substituted, altered, and/or omitted as appropriate within the spirit and scope of the embodiments of the present disclosure.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make various changes and refinements without departing from the spirit and scope of the present case. The scope defined in the patent application is subject to change.

Claims (10)

A driving method of a display device, wherein the display device comprises a plurality of data lines and a plurality of scan lines, the data lines intersecting the scan lines to form a plurality of pixels, wherein the method comprises: calculating each of the data a plurality of grayscale differences between adjacent two frames of the plurality of data voltages of the pixels; and calculating, by the grayscale values, the data input to the pixels through the data lines a total grayscale difference between adjacent two frames of voltage; determining a driving mode corresponding to the total grayscale difference; and driving the display device according to the driving mode; wherein determining the total grayscale difference Corresponding to the driving mode, when the total grayscale difference is greater than or equal to a first total grayscale difference threshold, determining that the driving mode is a first driving mode; when the total grayscale difference is less than the first When the total grayscale difference threshold is greater than a second total grayscale difference threshold, determining that the driving mode is a second driving mode; and when the total grayscale difference is less than or equal to the second total grayscale Determine the drive when the threshold is The third mode is a driving mode. The driving method of claim 1, wherein calculating the total grayscale difference value of the data lines comprises: calculating a first count value of each of the data lines, wherein when the grayscale differences are greater than a gray level difference threshold, the first count value is incremented by 1; and calculating a second count value of the data lines, wherein the first count value When the value is greater than a first count threshold, the second count value is incremented by one; wherein the second count value includes the total gray scale difference value. A driving method of a display device, wherein the display device comprises a plurality of data lines and a plurality of scan lines, the data lines intersecting the scan lines to form a plurality of pixels, wherein the scan lines comprise a first scan line, a second scan line and a third scan line, wherein the method comprises: calculating a plurality of gray scale differences between adjacent two frames of the plurality of data voltages input to the pixels through each of the data lines Calculating, according to the grayscale differences, a total grayscale difference between adjacent two frames of the data voltages input to the pixels through the data lines; determining corresponding to the total grayscale difference And driving the display device according to the driving mode; wherein driving the liquid crystal display according to the driving mode comprises: transmitting the first scanning line, the second scanning when determining that the driving mode is a first driving mode The line and the third scan line simultaneously output a first scan signal, a second scan signal and a third scan signal during a period; when it is determined that the driving mode is a second driving mode, And outputting the first scan signal and the second scan signal in sequence; and when determining that the driving mode is a third driving mode, sequentially outputting the first scan signal and the second scan signal during the period The third scan signal. The driving method of claim 3, wherein the first scan signal, the second scan signal, and the third scan signal in the same driving mode have the same one pulse width. The driving method of claim 4, wherein the pulse width in the second driving mode is one-half of the pulse width in the first driving mode, and in the third driving mode The pulse width is one third of the pulse width in the first drive mode. The driving method of claim 3, wherein the data lines comprise a first data line, a second data line, and a third data line, wherein the pulse signals input to the data lines are included If it is determined that the driving mode is the second driving mode, electrically connecting the first data line and the second data line; and if it is determined that the driving mode is the third driving mode, electrically connecting the first data a line, the second data line, and the third data line. A display device includes: a plurality of data lines; a plurality of scan lines intersecting the data lines to form a plurality of pixels; a data driver for outputting a plurality of data voltages to the data lines; and a scan driver Outputting a plurality of scan signals to the scan lines; a controller for calculating a plurality of grayscale differences between adjacent two frames of the data voltages input to the pixels through each of the data lines, and calculating the grayscale values according to the grayscale values The data lines are input to a total grayscale difference between two adjacent frames of the data voltages of the pixels, and a driving mode corresponding to the total grayscale difference is determined, and according to the driving mode Driving the display device; wherein the scan lines include a first scan line, a second scan line, and a third scan line, wherein when the driving mode is determined to be a first driving mode, the scan driver transmits the first The scan line, the second scan line, and the third scan line simultaneously output a first scan signal, a second scan signal, and a third scan signal during a period; when it is determined that the driving mode is a second driving mode The scan driver sequentially outputs the first scan signal and the second scan signal during the period; when it is determined that the driving mode is a third driving mode, the scan driver sequentially outputs the first scan during the period signal, A second scan signal and the third scan signal. The display device of claim 7, wherein the first scan signal, the second scan signal, and the third scan signal in the same driving mode have the same pulse width. The display device of claim 8, wherein the pulse width in the second driving mode is one-half of the pulse width in the first driving mode, and in the third driving mode The pulse width is one third of the pulse width in the first drive mode. A display device includes: a plurality of data lines; a plurality of scan lines intersecting the data lines to form a plurality of pixels; a data driver for outputting a plurality of data voltages to the data lines; and a scan driver And outputting a plurality of scan signals to the scan lines; and a controller for calculating a plurality of gray scales between adjacent two frames of the data voltages input to the pixels through each of the data lines a difference, calculating a total grayscale difference between adjacent two frames of the data voltages input to the pixels through the data lines according to the grayscale differences, and determining a difference from the total grayscale a driving mode corresponding to the value, and driving the display device according to the driving mode; wherein the data lines comprise a first data line, a second data line, and a third data line, wherein the controller is further used for When the driving mode is determined to be a second driving mode, the first data line and the second data line are electrically connected, and when the driving mode is determined to be a third driving mode, the first data line is electrically connected, The second capital Data line and the third line.