Electronic device and driving method thereof

Abstract

This disclosure provides an electronic device and its driving method. The electronic device includes a pixel compensation circuit and a display panel. The pixel compensation circuit receives pixel signals. The pixel signals include multiple sub-pixel grayscale values. The pixel compensation circuit compensates for the sub-pixel grayscale values ​​based on the differences between the sub-pixel grayscale values ​​and a first threshold to output an adjusted pixel signal. The display panel displays an image based on the adjusted pixel signal.

Description

Technical Field

[0001] This disclosure relates to a driving method for an electronic device, and more particularly to a display device and its driving method. Background Technology

[0002] In the prior art, when an electronic device has a display panel as a display device, there may be many ways to arrange the pixels of the display panel. One way is that the same data line is electrically connected to the sub-pixel circuits located in the same column, and the sub-pixel circuits located in the same column control sub-pixels of the same color (first arrangement); another way is that the sub-pixel circuits electrically connected to the same data line are located in different sub-pixel columns, and the sub-pixel circuits located in different columns have different colors (second arrangement).

[0003] In the first arrangement, when the display panel shows an image with a gray background and a large area of ​​solid color, the solid color area in the image can easily affect the display quality of other areas displaying the gray background in the vertical direction. In the second arrangement, the greater the resistance and capacitance of the data lines, the more easily the image display quality is affected.

[0004] In existing technologies, in order to improve the display quality of images, it is necessary to use buffer circuits with high hardware costs to store the images to be displayed, and to calculate the compensation grayscale values ​​of the images in a complex manner. Summary of the Invention

[0005] This disclosure provides a driving method for an electronic device and a display device, which can determine the compensation grayscale value of sub-pixels through a low-cost pixel compensation circuit to improve the display quality of the image.

[0006] The electronic device disclosed herein includes a pixel compensation circuit and a display panel. The pixel compensation circuit receives pixel signals. The pixel signals include a plurality of sub-pixel grayscale values. The pixel compensation circuit compensates the sub-pixel grayscale values ​​based on the differences between the sub-pixel grayscale values ​​and a first threshold to output an adjusted pixel signal. The display panel displays an image based on the adjusted pixel signal.

[0007] In the embodiments of this disclosure, when the grayscale value of a sub-pixel is less than or equal to a first threshold, and the difference between the grayscale values ​​of multiple sub-pixels is greater than or equal to a second threshold, the pixel compensation circuit decides to compensate the grayscale value of the sub-pixel.

[0008] In the embodiments of this disclosure, the pixel compensation circuit compensates the sub-pixel grayscale value based on the compensation grayscale value, and the sum of the compensation grayscale value and the sub-pixel grayscale value is less than or equal to the reference grayscale value.

[0009] In the embodiments of this disclosure, the compensation grayscale value is a fixed value.

[0010] In the embodiments of this disclosure, the compensation grayscale value is determined based on the grayscale value of the sub-pixel.

[0011] The driving method of the electronic device disclosed herein includes: receiving a pixel signal, wherein the pixel signal includes a plurality of sub-pixel grayscale values; determining a compensation grayscale value for each sub-pixel grayscale value based on the sub-pixel grayscale values; compensating the sub-pixel grayscale values ​​based on the compensation grayscale value to output an adjusted pixel signal, wherein the sum of the compensation grayscale value and the sub-pixel grayscale values ​​is less than or equal to a reference grayscale value; and driving a display panel to display an image based on the adjusted pixel signal.

[0012] In embodiments of this disclosure, the driving method of the electronic device further includes: determining to compensate for the sub-pixel grayscale value when the sub-pixel grayscale value is less than or equal to a first threshold and the difference between the sub-pixel grayscale values ​​is greater than or equal to a second threshold.

[0013] In embodiments of this disclosure, the sum of the compensated grayscale value and the sub-pixel grayscale value is less than or equal to the reference grayscale value.

[0014] In the embodiments of this disclosure, the compensation grayscale value is a fixed value.

[0015] In the embodiments of this disclosure, the compensation grayscale value is determined based on the grayscale value of the sub-pixel.

[0016] To make the foregoing more understandable, several embodiments, accompanied by accompanying drawings, are described in detail below. Attached Figure Description

[0017] Figure 1 A block diagram showing an embodiment of an electronic device of the present disclosure;

[0018] Figure 2 A schematic diagram showing an image displayed on a display panel according to an embodiment of the present disclosure;

[0019] Figure 3 This illustration shows a lookup representation of sub-pixel grayscale values ​​and compensated grayscale values ​​according to an embodiment of the present disclosure.

[0020] Figure 4A A schematic diagram showing pixels on a display panel according to an embodiment of the present disclosure;

[0021] Figure 4B A schematic diagram showing pixels on a display panel according to another embodiment of the present disclosure;

[0022] Figure 5 A graph showing the correspondence between pixel grayscale and brightness according to an embodiment of the present disclosure is provided.

[0023] Figure 6 A schematic diagram showing pixels on a display panel according to another embodiment of the present disclosure;

[0024] Figure 7 A graph showing the correspondence between grayscale values ​​and data voltages according to another embodiment of this disclosure is provided.

[0025] Figure 8 A flowchart illustrating the steps of an electronic device driving method according to an embodiment of the present disclosure is shown. Detailed Implementation

[0026] This disclosure can be understood by referring to the following detailed description in conjunction with the accompanying drawings. It should be noted that, for ease of understanding and for the sake of brevity, many of the drawings in this disclosure depict only a portion of the electronic device, and certain components in the drawings are not drawn to scale. Furthermore, the number and dimensions of the components in the drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure.

[0027] In the following description and claims, the words “containing” and “including” are open-ended terms, and therefore should be interpreted as “containing but not limited to…”.

[0028] It should be understood that although the terms first, second, third… can be used to describe multiple components, the components are not limited to these terms. These terms are used only to distinguish a single component from other components in the specification. The same terms may not be used in the claims, but rather replaced by first, second, third… in the order in which the components are declared in the claims. Therefore, in the following description, a first component may be a second component in the claims.

[0029] In some embodiments of this disclosure, terms such as "connection" and "interconnection," unless specifically defined, may refer to two structures being in direct contact, or to two structures not being in direct contact, wherein another structure is disposed between the two structures. Furthermore, these terms regarding engagement and connection may also include situations where both structures are movable or both structures are fixed. In addition, the term "coupled" includes any direct and indirect electrical connection means.

[0030] The electronic devices disclosed herein may include, but are not limited to, display devices, antenna devices, sensing devices, light-emitting devices, or splicing devices. Electronic devices may include bendable or flexible electronic devices. Electronic devices may include electronic components. Electronic devices may include, for example, liquid crystal layers or light-emitting diodes (LEDs). Electronic components may include passive and active components, such as capacitors, resistors, inductors, variable capacitors, filters, diodes, transistors, sensors, microelectromechanical systems (MEMS) components, liquid crystal chips, controllers, etc., but are not limited to these. Diodes may include light-emitting diodes or photodiodes. Light-emitting diodes may include, for example, organic light-emitting diodes (OLEDs), miniLEDs, microLEDs, quantum dot LEDs, fluorescent, phosphorescent, or other suitable materials, or combinations thereof, but are not limited to these. Sensors may include, for example, capacitive sensors, optical sensors, electromagnetic sensors, fingerprint sensors (FPS), touch sensors, antennas, or pen sensors, but are not limited thereto. Controllers may include, for example, timing controllers, but are not limited thereto. The following description uses a display device as an example of an electronic device, but this disclosure is not limited thereto.

[0031] Reference will now be made in detail to exemplary embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same component reference numerals are used in the drawings and description to denote the same or similar parts.

[0032] Figure 1 A block diagram illustrating an embodiment of the electronic device of this disclosure is shown. Please refer to... Figure 1The electronic device 100 includes a pixel compensation circuit 110 and a display panel 120. The pixel compensation circuit 110 receives a pixel signal S1 and outputs an adjustment pixel signal S2. The pixel signal S1 includes multiple sub-pixel grayscale values ​​(Gr, Gg, Gb), where Gr is, for example, a red sub-pixel grayscale value, Gg is, for example, a green sub-pixel grayscale value, and Gb is, for example, a blue sub-pixel grayscale value, but is not limited thereto. The pixel compensation circuit 110 determines the compensation grayscale value of the sub-pixel grayscale value based on the difference between the sub-pixel grayscale values ​​(Gr, Gg, Gb) and a first threshold TH01. For example, if it is determined that the red sub-pixel grayscale value Gr and / or the blue sub-pixel grayscale value Gb need to be compensated (i.e., the compensation grayscale value is greater than 0), then the compensated sub-pixel grayscale values ​​include the red sub-pixel grayscale value Gr and / or the blue sub-pixel grayscale value Gb. The compensated sub-pixel grayscale value may be at least one of the sub-pixel grayscale values ​​(Gr, Gg, Gb), but is not limited to this.

[0033] The display panel 120 receives the adjusted pixel signal S2 output by the pixel compensation circuit 110. The display panel 120 displays an image based on the adjusted pixel signal S2. The adjusted pixel signal S2 may be a compensated pixel signal or an uncompensated pixel signal (i.e., the compensated grayscale value is equal to 0, which is equal to the pixel signal S1).

[0034] In this embodiment, the pixel compensation circuit 110 is disposed, for example, in a timing controller or a source driver, but this disclosure is not limited thereto. The pixel compensation circuit 110 may be designed using a Hardware Description Language (HDL) or any other circuit design method well known to those skilled in the art, and implemented using a Field Programmable Gate Array (FPGA), a Complex Programmable Logic Device (CPLD), or an Application-Specific Integrated Circuit (ASIC), but this disclosure is not limited thereto.

[0035] Figure 2 This is a schematic diagram showing an image displayed on a display panel according to an embodiment of the present disclosure. Please refer to... Figure 1 and Figure 2The display panel 120 receives the adjusted pixel signal S2 output by the pixel compensation circuit 110 to display the image frame 200. In this embodiment, the image frame 200 includes region R1 and region R2. Region R1 surrounds region R2 and includes sub-regions 210, 230, 250, and 270. Region R1 is, for example, an image region where each sub-pixel has a grayscale value of 51, wherein the grayscale values ​​(Gr, Gg, Gb) of each sub-pixel of pixel P1 and pixel P3 are (51, 51, 51). Pixel P1 can be any pixel in sub-region 210, and pixel P3 can be any pixel in sub-region 230. Before compensation by the pixel compensation circuit 110, the pixel signal S1 can be provided to region R2 to display, for example, a single color, such as an image region displaying green, wherein the pixel signal S1 provided to pixel P2 before compensation has a sub-pixel grayscale value (Gr, Gg, Gb) of (0, 255, 0). Pixel P2 can be any pixel in region R2.

[0036] To mitigate the issue of pixel signals in display area R2 affecting pixel signals in sub-areas 210 and / or 230, thus impacting display quality, pixel compensation circuit 110 compensates for the pixel signal of pixel P2 in area R2. For example, pixel compensation circuit 110 can adjust the grayscale value of the sub-pixel P2 to (X1, 255, X1), where X1 is the compensated grayscale value. In one embodiment, the compensated grayscale value X1 can be a fixed value. That is, regardless of the original grayscale value of the sub-pixel, the compensated grayscale value is the same, which is X1.

[0037] Alternatively, in one embodiment, the compensation grayscale value can also be determined based on the size of the sub-pixel grayscale value. Figure 3 This diagram illustrates an embodiment of the present disclosure, specifically a look-up table (LUT) showing the sub-pixel grayscale values ​​before compensation and the compensated grayscale values. Please refer to... Figure 3 Lookup table 300 presents the correspondence between the sub-pixel grayscale values ​​before compensation and the compensated grayscale values. The sub-pixel grayscale values ​​before compensation include, for example, 0, 1 to 255, and the compensated grayscale values ​​include, for example, X1, X2 to X255. Figure 2 In this embodiment, the compensation grayscale value can also be determined according to a lookup table. For example, when the grayscale value of the sub-pixel before compensation is 0, the compensation grayscale value is X1; when the grayscale value of the sub-pixel before compensation is 1, the compensation grayscale value is X2. And so on, when the grayscale value of the sub-pixel before compensation is 255, the compensation grayscale value is X256.

[0038] The following explains how the pixel compensation circuit 110 determines the compensation grayscale value of a sub-pixel based on the difference between the grayscale values ​​(Gr, Gg, Gb) of the sub-pixels and the first threshold TH01.

[0039] exist Figure 2 In one embodiment, when the grayscale value of a sub-pixel before compensation is less than or equal to a first threshold TH01, and the larger of the differences between the grayscale value of the sub-pixel and the grayscale values ​​of its two horizontally adjacent sub-pixels is greater than or equal to a second threshold TH02, the pixel compensation circuit 110 decides to compensate the sub-pixel and determines the compensation grayscale value. In one embodiment, the first threshold TH01 is, for example, 100, and the second threshold TH02 is, for example, 10, but is not limited thereto. Taking Gr in the sub-pixel grayscale values ​​(Gr, Gg, Gb) of pixel P2 as an example, if the sub-pixel grayscale value Gr before compensation is 0, which is less than the first threshold TH01, and the difference between the sub-pixel grayscale value Gr and the sub-pixel grayscale value Gg of pixel P2 is 255, while the difference between Gr and the sub-pixel grayscale value Gb in the sub-pixel grayscale values ​​(Gr, Gg, Gb) of another pixel on the left is 0, then the two differences are 0 and 255 respectively. Therefore, the larger of the differences (255) is greater than the second threshold TH02. Thus, the pixel compensation circuit 110 decides to compensate the sub-pixel grayscale value Gr, and determines the compensated grayscale value as X1 according to the lookup table 300. Taking Gb in the sub-pixel grayscale values ​​(Gr, Gg, Gb) of pixel P2 as an example, if the sub-pixel grayscale value Gb before compensation is 0, which is less than the first threshold TH01, and the difference between the sub-pixel grayscale value Gb and the sub-pixel grayscale value Gg of pixel P2 is 255, while the difference between Gb and Gr in the sub-pixel grayscale values ​​(Gr, Gg, Gb) of another pixel on the right is 0, then the two differences are 0 and 255 respectively. Therefore, the larger difference (255) is greater than the second threshold TH02. Thus, the pixel compensation circuit 110 decides to compensate the sub-pixel grayscale value Gb, and determines the compensated grayscale value as X1 according to the lookup table 300. Taking Gg from the sub-pixel grayscale values ​​(Gr, Gg, Gb) of pixel P2 as an example, if the sub-pixel grayscale value Gg before compensation is 255, which is greater than the first threshold TH01, then the pixel compensation circuit 110 will not compensate for the sub-pixel grayscale value Gg. In other words, the compensated grayscale value is 0, so the sub-pixel grayscale value Gg remains 255. Therefore, the sub-pixel grayscale value of pixel P2 after compensation is (X1, 255, X1).

[0040] Figure 4A A schematic diagram showing pixels on a display panel according to an embodiment of this disclosure is provided. Please refer to... Figure 4A The display panel 120 includes at least one pixel 400. Pixel 400 includes, but is not limited to, red sub-pixels 122, green sub-pixels 124, and blue sub-pixels 126. Please use in conjunction with... Figure 2 , Figure 2Pixel P2 can be the same as pixel 400. Before compensation, because the grayscale values ​​displayed by green sub-pixels 124 and blue sub-pixels 126 are significantly different, the difference between the data voltages written to data line D1 (corresponding to green sub-pixel 124) and data line D2 (corresponding to blue sub-pixel 126) is also significant. Figure 4A As indicated by the two arrows 410. Because the data voltage difference between data lines D1 and D2 is significant, it will affect pixel P1 and / or pixel P3. In other words, when displaying image 200 on display panel 120, if the grayscale value of area R2 is not compensated, the display quality of sub-area 210 and / or sub-area 230 may be affected.

[0041] Figure 4B A schematic diagram showing pixels on a display panel according to another embodiment of this disclosure is provided. Please refer to... Figure 4B ,exist Figure 4B In this embodiment, the grayscale compensation method provided by this disclosure compensates for the grayscale values ​​of sub-pixels in region R2. For example, increasing the data voltage of the write data line D2 can reduce the difference in data voltage between the write data line D1 and the data line D2. Figure 4B As indicated by the two arrows 420 in the diagram. Therefore, the pixel compensation circuit 110 can compensate for pixel P2 in region R2 to reduce the problem of the pixel signal of display region R2 affecting the pixel signal of sub-region 210 and / or sub-region 230 and thus affecting the display quality when the image screen 200 is displayed on the display panel 120.

[0042] Figure 5 This diagram illustrates the correspondence between pixel grayscale and brightness according to an embodiment of the present disclosure, where curve 510 is the brightness curve of the side-viewed electronic device, and curve 520 is the brightness curve of the front-viewed electronic device. Please refer to... Figure 2 and Figure 5 ,exist Figure 2 In the process, the pixel compensation circuit 110 adjusts the sub-pixel grayscale value based on the compensation grayscale value. The sum of the compensation grayscale value and the sub-pixel grayscale value can be less than or equal to a reference grayscale value to reduce the impact on display quality. The reference grayscale value is, for example, as shown below. Figure 5 The RG point in the image corresponds to a grayscale value of 64, but is not limited to this.

[0043] Figure 6 A schematic diagram showing pixels on a display panel according to another embodiment of this disclosure is provided. Figure 7 A graph showing the correspondence between grayscale values ​​and data voltages according to another embodiment of this disclosure is provided. Please refer to... Figure 1 , Figure 6 ,and Figure 7The display panel 120 includes multiple pixels, such as pixel 400_1, pixel 400_2, and pixel 400_3. In this embodiment, the same data line electrically connects sub-pixels located in different pixel columns. Taking data line D3 as an example, in pixel row N1, data line D3 is electrically connected to the green sub-pixel 124_1 located to its right; in pixel row N2, data line D3 is electrically connected to the red sub-pixel 122_2 located to its left; and in pixel row N3, data line D3 is electrically connected to the green sub-pixel 124_3 located to its right.

[0044] When the display panel 120 needs to display a green image, for example, the grayscale value of the green sub-pixel is 128, while the grayscale values ​​of the red and blue sub-pixels are 0, the data voltage written to data line D3 corresponds sequentially to green sub-pixel 124_1, red sub-pixel 122_2, and green sub-pixel 124_3. Therefore, the data voltage written to data line D3 will have a significant difference. (Refer to...) Figure 7 This is approximately 2.73 volts. Therefore, if the driving circuit's charging capability for the data line is insufficient, it will affect the display quality of the screen.

[0045] Therefore, in this embodiment, the pixel compensation circuit 110 determines the compensation grayscale value of the sub-pixel based on the difference between the grayscale values ​​(Gr, Gg, Gb) of the sub-pixel and the first threshold TH01. For example, when the display panel 120 is to display green with a grayscale value of 128, the grayscale value (Gr, Gg, Gb) of one pixel before compensation is (0, 128, 0). Taking the grayscale value Gr as an example, the grayscale value Gr before compensation is 0, which is less than the first threshold TH01 (e.g., 100). The difference between the grayscale value Gr and the grayscale value Gg is 128, while the difference between Gr and Gb in the grayscale value (Gr, Gg, Gb) of another pixel on the left is 0. Therefore, the two differences are 0 and 128, respectively. Thus, the larger difference (128) is greater than the second threshold TH02 (e.g., 10). Therefore, the pixel compensation circuit 110 decides to compensate the grayscale value Gr. For example, the compensated grayscale value can be 16. Taking the sub-pixel grayscale value Gb as an example, before compensation, the sub-pixel grayscale value Gb = 0, which is less than the first threshold TH01 (e.g., 100). The difference between the sub-pixel grayscale value Gb and the sub-pixel grayscale value Gg is 128, while the difference between Gb and Gr in the sub-pixel grayscale value (Gr, Gg, Gb) of the other pixel on the right is 0. Therefore, the two differences are 0 and 128 respectively. The larger difference (128) is greater than the second threshold TH02 (e.g., 10). Therefore, the pixel compensation circuit 110 decides to compensate the sub-pixel grayscale value Gb. For example, the compensated grayscale value could be 16. Taking the sub-pixel grayscale value Gg as another example, before compensation, the sub-pixel grayscale value Gg = 128, which is greater than the first threshold TH01 (e.g., 100). Therefore, the pixel compensation circuit 110 will not compensate the sub-pixel grayscale value Gg; in other words, the compensated grayscale value is 0. Thus, the sub-pixel grayscale value Gg remains 128. Therefore, when the display panel 120 is to display green, the compensated sub-pixel grayscale value is (16, 128, 16). Similarly, when the display panel 120 is to display a red or blue image, the pixel compensation circuit 110 can perform the same processing to improve the display quality degradation problem of the display panel.

[0046] Therefore, the data voltage written to data line D3 can be switched from the data voltage corresponding to the grayscale value 128 of the green sub-pixel to the data voltage corresponding to the grayscale value 16 of the red sub-pixel, and the difference in data voltage is referenced. Figure 7 It is known to be approximately 1.5 volts. Therefore, the difference in data voltage between the compensated sub-pixel grayscale values ​​is smaller, which can reduce the problem of affecting the display quality when the driving circuit's charging capability for the data line is insufficient.

[0047] Figure 8 A flowchart illustrating the steps of an electronic device driving method according to an embodiment of this disclosure is provided. Please refer to... Figure 1 and Figure 8 In step S100, the pixel compensation circuit 110 receives the pixel signal S1. The pixel signal S1 includes multiple sub-pixel grayscale values ​​(Gr, Gg, Gb), where Gr is the grayscale value of the red sub-pixel, Gg is the grayscale value of the green sub-pixel, and Gb is the grayscale value of the blue sub-pixel. In step S110, the pixel compensation circuit 110 determines the compensation grayscale value of each sub-pixel grayscale value based on the sub-pixel grayscale values ​​(Gr, Gg, Gb). In step S120, the pixel compensation circuit 110 compensates the sub-pixel grayscale values ​​based on the compensation grayscale values ​​to output the adjusted pixel signal S2. The sum of the compensation grayscale value and the sub-pixel grayscale value can be less than or equal to a reference grayscale value. The reference grayscale value is, for example, a... Figure 5 The RG point in the image, for example, corresponds to grayscale value 64. In step S130, the pixel compensation circuit 110 drives the display panel 120 to display the image 200 according to the adjusted pixel signal S2.

[0048] In summary, in the embodiments of this disclosure, the pixel compensation circuit determines the compensation grayscale value of a sub-pixel based on the difference between the grayscale values ​​of the sub-pixels and a first threshold. Therefore, the compensation grayscale value of different sub-pixel grayscale values ​​can be determined by a low-cost pixel compensation circuit, thereby improving the display quality of the image.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electronic device comprising: A pixel compensation circuit receives a pixel signal, wherein the pixel signal includes a plurality of sub-pixel grayscale values, wherein the pixel compensation circuit compensates the plurality of sub-pixel grayscale values ​​based on a judgment result to output an adjusted pixel signal, wherein the judgment result indicates that the plurality of sub-pixel grayscale values ​​are less than or equal to a first threshold, and the difference between the plurality of sub-pixel grayscale values ​​is greater than or equal to a second threshold, wherein the first threshold is greater than the second threshold, wherein the pixel compensation circuit compensates the plurality of sub-pixel grayscale values ​​according to the compensated grayscale value, and the sum of the compensated grayscale value and the plurality of sub-pixel grayscale values ​​is less than or equal to a reference grayscale value; as well as The display panel displays images based on the adjusted pixel signals.

2. The electronic device according to claim 1, wherein the compensation grayscale value is a fixed value.

3. The electronic device according to claim 1, wherein the compensation grayscale value is determined based on the grayscale values ​​of the plurality of sub-pixels.

4. A method for driving an electronic device, comprising: Receive pixel signals, wherein the pixel signals include multiple sub-pixel grayscale values; The compensation gray level value of the plurality of sub-pixel gray level values ​​is determined based on a judgment result, wherein the judgment result indicates that the plurality of sub-pixel gray level values ​​are less than or equal to a first threshold, and the difference between the plurality of sub-pixel gray level values ​​is greater than or equal to a second threshold, wherein the first threshold is greater than the second threshold. The grayscale values ​​of the plurality of sub-pixels are compensated according to the compensation grayscale value to output an adjusted pixel signal, wherein the sum of the compensation grayscale value and the grayscale values ​​of the plurality of sub-pixels is less than or equal to the reference grayscale value; as well as The image is displayed on the display panel by adjusting the pixel signals.

5. The driving method for the electronic device according to claim 4, wherein the compensation grayscale value is a fixed value.

6. The driving method of the electronic device according to claim 4, wherein the compensation grayscale value is determined based on the grayscale values ​​of the plurality of sub-pixels.

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