Electronic paper display device and driving method

Abstract

The invention discloses an electronic paper display device and a driving method. The electronic paper display device comprises an electrophoretic display panel, a data driving circuit, a gate driving circuit and a time schedule controller, wherein the electrophoretic display panel comprises a plurality of data lines coupled with the data driving circuit, a plurality of gate lines coupled with the gate driving circuit and a plurality of pixel units. Each pixel unit comprises an oxide semiconductor thin film transistor and a pixel electrode, and the oxide semiconductor thin film transistor is respectively coupled with the pixel electrode and the corresponding gate line and data line. The time sequence controller compares the current frame of image data with the next frame of image data, and when the current frame of image data is the same as the next frame of image data, the time sequence controller controls the data driving circuit not to output corresponding data waveforms to the plurality of pixel units; meanwhile, the gate drive circuit is controlled not to output corresponding drive pulses to the pixel units, so that the pixel units are kept in a display state. Therefore, the effect of saving power consumption is achieved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to an electronic paper display device and a driving method. Background Art

[0002] The existing electronic paper display device generally includes: an electrophoretic display panel, a data driving circuit and a gate driving circuit. The electrophoretic display panel includes: a plurality of data lines, a plurality of gate lines and a plurality of pixel units. The plurality of pixel units are coupled to the corresponding plurality of gate lines and the plurality of data lines. In the existing electronic paper display device, during each screen refresh process, the gate driving circuit outputs corresponding driving pulses to the plurality of gate lines based on the frame image data to be displayed, and the data driving circuit outputs corresponding data waveforms to the plurality of data lines based on the frame image data to be displayed, so that the electrophoretic display panel displays the frame image data to be displayed.

[0003] Even if the current frame image data is the same as the next frame image data, the existing electronic paper display device still needs to output corresponding data waveforms to multiple data lines through the data driving circuit, and simultaneously output corresponding driving pulses to multiple gate lines through the gate driving circuit, so that the electrophoretic display panel can display the next frame image data. Therefore, the existing electronic paper display device has the problems of high power consumption and long screen refresh time.

[0004] Therefore, how to provide an electronic paper display device and a driving method thereof to solve the above problems is a problem that people skilled in the art need to solve. Summary of the invention

[0005] The embodiments of the present application provide an electronic paper display device and a driving method, which can solve the problems of high power consumption and long screen refresh time in existing electronic paper display devices.

[0006] In order to solve the above technical problems, this application is implemented as follows:

[0007] The present application provides an electronic paper display device, which includes: an electrophoretic display panel, a data driving circuit, a gate driving circuit and a timing controller, wherein the electrophoretic display panel includes: a plurality of data lines, a plurality of gate lines and a plurality of pixel units defined by the intersection of a plurality of gate lines and a plurality of data lines. Each pixel unit includes an oxide semiconductor thin film transistor (OxideTFT) and a pixel electrode, and the oxide semiconductor thin film transistor is respectively coupled to the pixel electrode and the corresponding gate line and data line. The data driving circuit is coupled to the plurality of data lines, the gate driving circuit is coupled to the plurality of gate lines, and the timing controller is coupled to the data driving circuit and the gate driving circuit. The timing controller is configured to compare the current frame image data with the next frame image data; when the current frame image data is the same as the next frame image data, the timing controller controls the data driving circuit not to output the corresponding data waveform to the plurality of pixel units, and at the same time controls the gate driving circuit not to output the corresponding driving pulse to the plurality of pixel units, so that the plurality of pixel units maintain the display state.

[0008] The present application provides a driving method, which is applied to an electronic paper display device. The electronic paper display device includes: an electrophoretic display panel, a data driving circuit, a gate driving circuit and a timing controller, and the electrophoretic display panel includes: a plurality of data lines, a plurality of gate lines and a plurality of pixel units defined by the intersection of a plurality of gate lines and a plurality of data lines. Each pixel unit includes an oxide semiconductor thin film transistor and a pixel electrode, and the oxide semiconductor thin film transistor is respectively coupled to the pixel electrode and the corresponding gate line and data line. The data driving circuit is coupled to the plurality of data lines, the gate driving circuit is coupled to the plurality of gate lines, and the timing controller is coupled to the data driving circuit and the gate driving circuit. The driving method includes: the timing controller compares the current frame image data with the next frame image data; and when the current frame image data is the same as the next frame image data, the timing controller controls the data driving circuit not to output the corresponding data waveform to the plurality of pixel units, and at the same time controls the gate driving circuit not to output the corresponding driving pulse to the plurality of pixel units, so that the plurality of pixel units maintain the display state.

[0009] In the electronic paper display device and driving method of the embodiment of the present application, each pixel unit includes an oxide semiconductor thin film transistor with a high electron mobility, so as to improve the response speed of the pixel unit, achieve a faster refresh frequency, and significantly reduce power consumption. At the same time, low-frequency driving is achieved based on the small leakage current of the oxide semiconductor thin film transistor. In addition, based on the electronic paper display device in which each pixel unit includes an oxide semiconductor thin film transistor, if the previous frame image and the next frame image have the same display state, the timing controller controls the data drive circuit and the gate drive circuit not to output the corresponding data waveform and drive pulse when refreshing the screen, so as to reduce the power consumed by the data drive circuit and the gate drive circuit, thereby achieving the effect of saving power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0011] Figure 1 A block diagram of an embodiment of the electronic paper display device of the present application;

[0012] Figure 2 is a block diagram of another embodiment of the electronic paper display device of the present application;

[0013] Figure 3 and Figure 4 for Figure 1 A current frame image of an embodiment displayed by an electronic paper display device and a corresponding driving waveform diagram;

[0014] Figure 5 and Figure 6 for Figure 1 The electronic paper display device shows Figure 3 The next frame image of the current frame image and its corresponding driving waveform diagram;

[0015] Figure 7 A method flow chart of an embodiment of a driving method according to the present application;

[0016] Figure 8 is a method flow chart of another embodiment of the driving method according to the present application;

[0017] Fig. 9 A method flow chart of another embodiment of the driving method of the present application; and

[0018] Fig.10 FIG. 4 is a flow chart of another embodiment of the driving method according to the present application. DETAILED DESCRIPTION

[0019] The embodiments of the present invention will be described below with reference to the accompanying drawings. In these drawings, the same reference numerals represent the same or similar components or method flows.

[0020] It must be understood that the words "comprise", "include", etc. used in this specification are used to indicate the existence of specific technical features, values, method steps, operation processing, elements and / or components, but do not exclude the addition of more technical features, values, method steps, operation processing, elements, components, or any combination of the above.

[0021] It should be understood that when a component is described as being "connected" or "coupled" to another component, it may be directly connected or coupled to the other component, and intermediate components may be present. Conversely, when a component is described as being "directly connected" or "directly coupled" to another component, there are no intermediate components.

[0022] See also Figure 1 , which is a block diagram of an embodiment of the electronic paper display device of the present application. Figure 1 As shown, the electronic paper display device 100 includes: an electrophoretic display panel 110, a data driving circuit 120, a gate driving circuit 130 and a timing controller 140, and the electrophoretic display panel 110 includes: a plurality of data lines 112, a plurality of gate lines 114 and a plurality of pixel units 116 defined by the intersection of the plurality of gate lines 114 and the plurality of data lines 112. Each pixel unit 116 includes an oxide semiconductor thin film transistor (Oxide TFT) 1162 and a pixel electrode 1164, and the oxide semiconductor thin film transistor 1162 is respectively coupled to the pixel electrode 1164 and the corresponding gate line 114 and the data line 112. In each pixel unit 116, the drain D of the oxide semiconductor thin film transistor 1162 is coupled to the pixel electrode 1164. The gate G of the oxide semiconductor thin film transistor 1162 of the pixel unit 116 located in the same row is coupled to the same gate line 114, and the source S of the oxide semiconductor thin film transistor 1162 of the pixel unit 116 located in the same column is coupled to the same data line 112. The data driving circuit 120 is coupled to the plurality of data lines 112, the gate driving circuit 130 is coupled to the plurality of gate lines 114, and the timing controller 140 is coupled to the data driving circuit 120 and the gate driving circuit 130. The oxide semiconductor thin film transistor 1162 included in each pixel unit 116 has a high electron mobility, which can effectively improve the charge and discharge rate of the oxide semiconductor thin film transistor 1162 to the pixel electrode 1164, improve the response speed of the pixel unit 116, achieve a faster refresh frequency, and significantly reduce power consumption. At the same time, low-frequency driving is achieved based on the small leakage current of the oxide semiconductor thin film transistor 1162 (that is, when the oxide semiconductor thin film transistor 1162 is turned off, the current lost in the pixel unit 116 is smaller than that of the traditional amorphous silicon thin film transistor).

[0023] It should be noted that in order to avoid Figure 1 The drawing is too complicated, and only six pixel units 116, three data lines 112 (i.e., data line 112a, data line 112b, and data line 112c), and three gate lines 114 (i.e., gate line 114a, gate line 114b, and gate line 114c) are drawn. The number of data lines 112, the number of gate lines 114, and the number of pixel units 116 included in the actual electrophoretic display panel 110 can be adjusted according to actual needs.

[0024] In one embodiment, the electronic paper display device 100 may further include a common voltage generating circuit 150, and each pixel unit 116 may further include a common electrode 1166; in each pixel unit 116, the common electrode 1166 is coupled to the common voltage generating circuit 150 and is arranged opposite to the pixel electrode 1164 to form an electrophoretic capacitor Ce.

[0025] In another embodiment, each pixel unit 116 may further include a storage capacitor Cs, one end of the storage capacitor Cs is coupled to the pixel electrode 1164, and the other end of the storage capacitor Cs is coupled to the adjacent upper row gate line 114 (eg Figure 2 As shown, Figure 2 is a block diagram of another embodiment of the electronic paper display device of the present application).

[0026] Please return to Figure 1 , the timing controller 140 is configured to compare the current frame image data with the next frame image data; when the current frame image data is the same as the next frame image data, the timing controller 140 controls the data driving circuit 120 not to output the corresponding data waveform to the multiple pixel units 116, and controls the gate driving circuit 130 not to output the corresponding driving pulse to the multiple pixel units 116, so that the multiple pixel units 116 maintain the display state. Specifically, based on the characteristic of the small leakage current of the oxide semiconductor thin film transistor 1162, when the current frame image data is the same as the next frame image data, the timing controller 140 can control the data driving circuit 120 and the gate driving circuit 130 not to output the corresponding data waveform and driving pulse, so as to reduce the power consumed by the data driving circuit 120 and the gate driving circuit 130, thereby achieving the effect of saving power consumption.

[0027] When the timing controller 140 compares the current frame image data with the next frame image data, it compares the pixel data of the upper and lower frames based on a single pixel unit 116, and controls the data driving circuit 120 and the gate driving circuit 130 to output corresponding waveforms based on whether each pixel unit 116 needs to adjust the display state.

[0028] See also Figure 1 , Figure 3 and Figure 4 , Figure 3 and Figure 4 for Figure 1 The current frame image and its corresponding driving waveform diagram of an embodiment of the electronic paper display device, wherein the plurality of pixel units 116 are based on Figure 4The driving waveform generates a white screen 70 (that is, each pixel unit 116 generates a white block 71). Specifically, the timing controller 140 obtains the current frame image data, and controls the data driving circuit 120 based on the current frame image data. Figure 4 The driving waveform outputs corresponding data waveforms to the plurality of pixel units 116, and at the same time controls the gate driving circuit 130 based on Figure 4 The driving waveform outputs corresponding driving pulses to the plurality of pixel units 116, so that the plurality of pixel units 116 are based on Figure 4 The driving waveform generates a white screen 70 (i.e., when gate line 114a, gate line 114b and gate line 114c output high levels in sequence, data line 112a, data line 112b and data line 112c respectively output low levels, so that each pixel unit 116 displays white).

[0029] See also Figure 1 , Figure 5 and Figure 6 , Figure 5 and Figure 6 for Figure 1 The electronic paper display device shows Figure 3 The next frame image of the current frame image and its corresponding driving waveform diagram, wherein the plurality of pixel units 116 are based on Figure 6 Specifically, the timing controller 140 obtains the next frame of image data, and determines that the pixel data corresponding to the current frame of image data of some pixel units 116 are the same as the pixel data corresponding to the next frame of image data (i.e., the pixel data corresponding to the current frame of image data of some pixel units 116 are the same as the pixel data corresponding to the next frame of image data). Figure 3 The white block 71 is generated in the next frame image. Figure 5 Therefore, the timing controller 140 controls the data driving circuit 120 not to output the corresponding data waveform to the part of the pixel units 116 (that is, the timing controller 140 controls the data driving circuit 120 to set the data line 112 coupled to the part of the pixel units 116 to a floating state, such as Figure 6 In other words, when the pixel data corresponding to the current frame image data of any pixel unit 116 is the same as the pixel data corresponding to the next frame image data, the timing controller 140 controls the data driving circuit 120 not to output the corresponding data waveform (such as Figure 6 (shown by the dashed line in the middle) so that any one of the pixel units remains in the display state.

[0030] Among them, from Figure 3 The current frame image is switched to Figure 5When the next frame image is displayed, half of the screen area does not need to be refreshed, so the power consumption of the data driving circuit 120 can be reduced by 50%.

[0031] It should be noted that from Figure 3 The current frame image is switched to Figure 5 When the next frame image is generated, among the pixel units 116 located in the same row, some pixel units 116 maintain the display state, and another part of the pixel units 116 need to refresh the display state (that is, the other part of the pixel units 116 corresponding to the current frame image generate Figure 3 The white block 71 is generated in the next frame image. Figure 5 However, since the electrophoretic display panel 110 displays images / pictures in a scanning driving manner, the timing controller 140 controls the data driving circuit 120 not to output corresponding data waveforms to the portion of pixel units 116 that maintain the display state, and at the same time, it still needs to control the gate driving circuit 130 to output corresponding driving pulses to the pixel units 116 located in the same row as the portion of pixel units 116 that maintain the display state. That is to say, when the pixel data corresponding to the current frame image data of any pixel unit 116 is the same as the pixel data corresponding to the next frame image data, and the pixel data corresponding to the current frame image data of any other pixel unit 116 located in the same row as any pixel unit 116 is different from the pixel data corresponding to the next frame image data, the timing controller 140 controls the data driving circuit 120 not to output the corresponding data waveform to any pixel unit, and because any other pixel unit 116 located in the same row as any pixel unit 116 has the need to adjust the display state, it also controls the gate driving circuit 130 to output corresponding driving pulses to any pixel unit 116 and any other pixel unit 116 located in the same row with it.

[0032] based on Figure 3 , Figure 5 and Figure 6 It can be seen that the electronic paper display device 100 displays Figure 5 In the process of the next frame of image, because the pixel units 116 located in the same row have the need to adjust the display state, the gate driving circuit 130 sequentially outputs high levels to the gate lines 114a, 114b and 114c; when the gate lines 114a, 114b and 114c sequentially output high levels, the data driving circuit 120 does not output any data waveform to the data lines 112a, 112b and 112c coupled to the pixel units 116 that maintain the generation of the white block 71 (such as Figure 6The data driving circuit 120 outputs high level to the data lines 112a, 112b and 112c coupled to the pixel unit 116 that is transformed from generating the white block 71 to generating the black block 81, so that the pixel unit 116 is transformed to display black.

[0033] In one embodiment, when the current frame image switches to the next frame image, if the pixel units 116 located in the same row all maintain the display state, the timing controller 140 controls the data driving circuit 120 not to output the corresponding data waveform to the pixel units 116 in the same row, and also controls the gate driving circuit 130 not to output the corresponding driving pulse to the pixel units 116 in the same row, so as to reduce the power consumed by the data driving circuit 120 and the gate driving circuit 130, thereby achieving the effect of saving power consumption.

[0034] Please continue reading Figure 1 , Figure 5 and Figure 6 , due to Figure 3 The current frame image is switched to Figure 5 When the next frame image is generated, among the pixel units 116 located in the same row, another part of the pixel units 116 needs to refresh the display state (that is, the other part of the pixel units 116 corresponding to the current frame image generates Figure 3 The white block 71 is generated in the next frame image. Figure 5 Therefore, when the timing controller 140 determines that the pixel data corresponding to the current frame image data of the other part of the pixel units 116 is different from the pixel data corresponding to the next frame image data, the timing controller 140 controls the gate driving circuit 130 to output the corresponding driving pulse to the other part of the pixel units 116, and controls the data driving circuit 120 to output the corresponding data waveform to the other part of the pixel units 116, so that the other part of the pixel units 116 refresh the display state. In other words, when the pixel data corresponding to the current frame image data of any other pixel unit is different from the pixel data corresponding to the next frame image data, the timing controller 140 controls the gate driving circuit 130 to output the corresponding driving pulse to the other part of the pixel unit, and controls the data driving circuit 120 to output the corresponding data waveform to the other part of the pixel unit, so that the other part of the pixel unit refreshes the display state. Among them, the corresponding data waveform output by the data driving circuit 120 can be a positive voltage pulse, a negative voltage pulse or a ground voltage pulse, which can be designed according to actual needs.

[0035] See also Figure 1 and Figure 7 , Figure 7 FIG. 1 is a flowchart of an embodiment of a driving method according to the present application. Figure 1 and Figure 7 As shown, the driving method can be applied to the electronic paper display device 100, and the driving method includes: the timing controller compares the current frame image data with the next frame image data (step 210); and when the current frame image data is the same as the next frame image data, the timing controller controls the data driving circuit not to output the corresponding data waveform to the multiple pixel units, and controls the gate driving circuit not to output the corresponding driving pulse to the multiple pixel units, so that the multiple pixel units maintain the display state (step 220). Because the multiple pixel units displaying the next frame image maintain the original display state (i.e., there is no need to refresh the screen), the timing controller can control the data driving circuit and the gate driving circuit not to output the corresponding data waveform and driving pulse to reduce the power consumed by the data driving circuit and the gate driving circuit, thereby achieving the effect of saving power consumption. The detailed description has been explained in the above paragraph and will not be repeated here.

[0036] See also Figure 1 and Figure 8 , Figure 8 FIG. 1 is a flowchart of another embodiment of the driving method according to the present application. Figure 1 and Figure 8 As shown, after step 210, the driving method may further include: when the pixel data corresponding to the current frame image data of any pixel unit is the same as the pixel data corresponding to the next frame image data, the timing controller controls the data driving circuit not to output the corresponding data waveform to any pixel unit, so that any pixel unit maintains the display state (step 230). The detailed description has been explained in the above paragraphs and will not be repeated here.

[0037] See also Figure 1 and Fig. 9 , Fig. 9 FIG. 1 is a flowchart of another embodiment of the driving method according to the present application. Figure 1 and Fig. 9 As shown, after step 210, the driving method may further include: when the pixel data corresponding to the current frame image data of any pixel unit is the same as the pixel data corresponding to the next frame image data, and the pixel data corresponding to the current frame image data of any other pixel unit in the same row as the any pixel unit is different from the pixel data corresponding to the next frame image data, the timing controller controls the data driving circuit not to output the corresponding data waveform to the any pixel unit, and simultaneously controls the gate driving circuit to output the corresponding driving pulse to the any pixel unit and the any other pixel unit in the same row (step 240). The detailed description has been described in the above paragraphs and will not be repeated here.

[0038] See also Figure 1 and Fig.10 , Fig.10FIG. 1 is a flowchart of another embodiment of the driving method according to the present application. Figure 1 and Fig.10 As shown, after step 210, the driving method may further include: when the pixel data corresponding to the current frame image data of any other pixel unit is different from the pixel data corresponding to the next frame image data, the timing controller controls the gate driving circuit to output a corresponding driving pulse to the any other pixel unit, and controls the data driving circuit to output a corresponding data waveform to the any other pixel unit, so that the any other pixel unit refreshes the display state (step 250). The detailed description has been described in the above paragraphs and will not be repeated here.

[0039] In summary, in the electronic paper display device and driving method of the present application, the response speed of the pixel unit is improved, a faster refresh frequency is achieved, and power consumption can be significantly reduced by designing that each pixel unit includes an oxide semiconductor thin film transistor with a higher electron mobility. At the same time, low-frequency driving is achieved based on the small leakage current of the oxide semiconductor thin film transistor. In addition, based on the electronic paper display device in which each pixel unit includes an oxide semiconductor thin film transistor, if the previous frame image and the next frame image have the same display state, the timing controller controls the data drive circuit and the gate drive circuit not to output the corresponding data waveform and drive pulse when refreshing the screen, so as to reduce the power consumed by the data drive circuit and the gate drive circuit, thereby achieving the effect of saving power consumption. In addition, the pixel data of the upper and lower frames can be compared based on a single pixel unit, and then the data drive circuit and the gate drive circuit can be controlled according to whether each pixel unit needs to adjust the display state. Whether to output the corresponding waveform to each pixel unit is designed to achieve the effect of saving power.

[0040] Although the present invention is described using the above embodiments, it should be noted that these descriptions are not configured to limit the present invention. On the contrary, this invention covers obvious modifications and similar arrangements that are obvious to those skilled in the art. Therefore, the claims must be interpreted in the broadest way to include all obvious modifications and similar arrangements.

Claims

1. An electronic paper display device, characterized in that: include: An electrophoretic display panel, comprising: a plurality of data lines, a plurality of gate lines, and a plurality of pixel units defined by the intersection of the plurality of gate lines and the plurality of data lines, wherein each pixel unit comprises an oxide semiconductor thin film transistor and a pixel electrode, and the oxide semiconductor thin film transistor is respectively coupled to the pixel electrode and the corresponding gate line and data line; A data driving circuit coupled to the plurality of data lines; A gate driving circuit coupled to the plurality of gate lines; and A timing controller is coupled to the data driving circuit and the gate driving circuit; the timing controller is configured to compare the current frame image data with the next frame image data, and when the current frame image data is the same as the next frame image data, the timing controller controls the data driving circuit not to output corresponding data waveforms to the multiple pixel units, and controls the gate driving circuit not to output corresponding driving pulses to the multiple pixel units, so that the multiple pixel units maintain a display state.

2. The electronic paper display device according to claim 1, characterized in that: When the pixel data corresponding to the current frame image data and the pixel data corresponding to the next frame image data of any pixel unit are the same, the timing controller controls the data driving circuit not to output the corresponding data waveform to any pixel unit, so that any pixel unit maintains the display state.

3. The electronic paper display device according to claim 1, characterized in that: When the pixel data corresponding to the current frame image data and the pixel data corresponding to the next frame image data of any pixel unit are the same, and the pixel data corresponding to the current frame image data and the pixel data corresponding to the next frame image data of any other pixel unit located in the same row as the any pixel unit are different, the timing controller controls the data driving circuit not to output the corresponding data waveform to the any pixel unit, and simultaneously controls the gate driving circuit to output the corresponding driving pulse to the any pixel unit and any other pixel unit located in the same row with it.

4. The electronic paper display device according to claim 1, wherein: When the pixel data corresponding to the current frame image data and the pixel data corresponding to the next frame image data of any other pixel unit are different, the timing controller controls the gate driving circuit to output a corresponding driving pulse to any other pixel unit, and simultaneously controls the data driving circuit to output a corresponding data waveform to any other pixel unit, so that any other pixel unit refreshes the display state.

5. The electronic paper display device according to claim 1, wherein: The electronic paper display device further includes a common voltage generating circuit, and each of the pixel units further includes a common electrode; in each of the pixel units, the common electrode is coupled to the common voltage generating circuit and is arranged opposite to the pixel electrode to form an electrophoretic capacitor.

6. The electronic paper display device according to claim 5, characterized in that: Each pixel unit further includes a storage capacitor, one end of which is coupled to the pixel electrode, and the other end of which is coupled to an adjacent upper row of gate lines.

7. A driving method, characterized in that: The invention is applied to an electronic paper display device, the electronic paper display device comprising: an electrophoretic display panel, a data driving circuit, a gate driving circuit and a timing controller, the electrophoretic display panel comprising: a plurality of data lines, a plurality of gate lines and a plurality of pixel units defined by the intersection of the plurality of gate lines and the plurality of data lines; each pixel unit comprises an oxide semiconductor thin film transistor and a pixel electrode, the oxide semiconductor thin film transistor is respectively coupled to the pixel electrode and the corresponding gate line and data line; the data driving circuit is coupled to the plurality of data lines; the gate driving circuit is coupled to the plurality of gate lines; the timing controller is coupled to the data driving circuit and the gate driving circuit; the driving method comprises: the timing controller compares the current frame image data with the next frame image data; and When the current frame image data is the same as the next frame image data, the timing controller controls the data driving circuit not to output corresponding data waveforms to the multiple pixel units, and at the same time controls the gate driving circuit not to output corresponding driving pulses to the multiple pixel units, so that the multiple pixel units remain in a display state.

8. The driving method according to claim 7, characterized in that: Also includes: When the pixel data corresponding to the current frame image data and the pixel data corresponding to the next frame image data of any pixel unit are the same, the timing controller controls the data driving circuit not to output the corresponding data waveform to any pixel unit, so that any pixel unit maintains the display state.

9. The driving method according to claim 7, characterized in that: Also includes: When the pixel data corresponding to the current frame image data and the pixel data corresponding to the next frame image data of any pixel unit are the same, and the pixel data corresponding to the current frame image data and the pixel data corresponding to the next frame image data of any other pixel unit located in the same row as the any pixel unit are different, the timing controller controls the data driving circuit not to output the corresponding data waveform to the any pixel unit, and simultaneously controls the gate driving circuit to output the corresponding driving pulse to the any pixel unit and any other pixel unit located in the same row with it.

10. The driving method according to claim 7, characterized in that: Also includes: When the pixel data corresponding to the current frame image data and the pixel data corresponding to the next frame image data of any other pixel unit are different, the timing controller controls the gate driving circuit to output a corresponding driving pulse to any other pixel unit, and simultaneously controls the data driving circuit to output a corresponding data waveform to any other pixel unit, so that any other pixel unit refreshes the display state.

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