Display panel and compensation method therefor, and generation device for compensated grayscale

Abstract

Provided in the present application are a display panel and a compensation method therefor, and a generation device for a compensated grayscale. The method comprises: acquiring, under a first original grayscale, a first compensated grayscale of first sub-pixels included in a first display portion, and a second compensated grayscale of second sub-pixels included in a second display portion, wherein the first compensated grayscale and the second compensated grayscale are respectively determined on the basis of a second brightness of the second sub-pixels under the first original grayscale and a first brightness of the first sub-pixels under the first original grayscale; and controlling the first sub-pixels and the second sub-pixels in a first part to emit light under the first original grayscale, and controlling the first sub-pixels and the second sub-pixels in a second part to emit light under the first compensated grayscale and the second compensated grayscale, respectively.

Description

Display panel, compensation method thereof, and compensation grayscale generation device Technical Field

[0001] The present application relates to the field of display technology, in particular to the manufacture of display devices, and specifically to a display panel and a compensation method thereof, and a device for generating compensated grayscale. Background Art

[0002] Considering the cost of data driver chips, display terminals can currently adopt a three-gate drive architecture to reduce the number of data lines to 1 / 3 of the normal drive architecture. At the same time, the number of scan lines is increased to 3 times the normal drive architecture, so that the width and charging time of each gate pulse are also reduced to 1 / 3 of the normal drive architecture.

[0003] In the three-gate drive architecture, on the one hand, the distance between two adjacent data driver chips is larger due to the reduction in the number of data driver chips, resulting in a large difference in the attenuation of the electrical signals transmitted to the two adjacent data driver chips. On the other hand, as shown in Figure 1, when displaying a pure color image, the amplitude of the signal on the same data line (each of Da1, Da2, Da3 to Dan) is always in a high and low fluctuation state, that is, it presents an overloaded image. In addition, after each gate line (each of G1, G2, G3 to Gn) turns on the corresponding row of pixels, the charging time of each row of pixels is insufficient, which will cause the brightness difference of the display areas controlled by the two adjacent data driver chips to be more obvious, resulting in a stronger sense of boundary.

[0004] Therefore, the phenomenon of a strong sense of boundary in the display screen of the display terminal of the existing three-gate driving architecture needs to be improved urgently. SUMMARY OF THE INVENTION

[0005] The purpose of the present application is to provide a display panel and a compensation method thereof, as well as a device for generating a compensated grayscale, so as to improve the technical problem of a boundary sense phenomenon in the display screen of a display terminal with an existing three-gate driving architecture.

[0006] This application provides a compensation method for a display panel, including:

[0007] Dividing a display area of ​​the display panel into at least a first display portion and a second display portion, wherein the first display portion includes a plurality of first sub-pixels, and the second display portion includes a plurality of second sub-pixels, and the colors of the first sub-pixels and the second sub-pixels are the same;

[0008] Obtaining a first compensated grayscale corresponding to a first original grayscale of the first subpixel, and obtaining a second compensated grayscale corresponding to the first original grayscale of the second subpixel, wherein the first compensated grayscale is determined at least based on a second brightness of the second subpixel at the first original grayscale, and the second compensated grayscale is determined at least based on a first brightness of the first subpixel at the first original grayscale;

[0009] The first sub-pixels in the first part and the second sub-pixels in the first part are controlled to emit light at the first original grayscale, the first sub-pixels in the second part are controlled to emit light at the first compensated grayscale, and the second sub-pixels in the second part are controlled to emit light at the second compensated grayscale. Beneficial effects

[0010] The present application provides a display panel, a compensation method thereof, and a device for generating a compensated grayscale. By obtaining a first compensated grayscale corresponding to a first original grayscale of a first sub-pixel in a first display portion, and obtaining a second compensated grayscale corresponding to the first original grayscale of a second sub-pixel in a second display portion, the color of the first sub-pixel is the same as the color of the second sub-pixel, the first compensated grayscale is determined at least according to the second brightness of the second sub-pixel at the first original grayscale, and the second compensated grayscale is determined at least according to the first brightness of the first sub-pixel at the first original grayscale; the first sub-pixel in the first part and the second sub-pixel in the first part are controlled to emit light at the first original grayscale, and the first sub-pixel in the second part is controlled to emit light at the first compensated grayscale, and the second sub-pixel in the second part is controlled to emit light at the second compensated grayscale, so as to effectively reduce the brightness difference of the display screen in different areas of the display panel and improve the uniformity of the overall display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present application is further described below with reference to the accompanying drawings. It should be noted that the drawings described below are only used to illustrate some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0012] FIG1 is a schematic diagram showing the connection between pixels, gate lines, and data lines in a display panel with a three-gate driving architecture according to an embodiment of the present application.

[0013] 2 , 5 , 9 , 12 , and 15 are flow charts of five embodiments of the display panel compensation method provided in the embodiments of the present application.

[0014] FIG3 is a gamma curve diagram of a sub-pixel of a display panel provided in an embodiment of the present application.

[0015] FIG4 is a schematic diagram of sub-pixels and light emission of both the first display portion and the second display portion in the display panel provided by an embodiment of the present application.

[0016] 6 to 8 , 10 to 11 , and 13 to 14 are schematic diagrams showing connections of multiple components in a display panel according to embodiments of the present application. Implementation Methods of the Application

[0017] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0018] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the said features. In addition, it should be noted that the drawings only provide structures that are closely related to this application and omit some details that are not closely related to the application. The purpose is to simplify the drawings and make the application points clear at a glance, rather than to indicate that the actual device is exactly the same as the drawings, and it is not intended to limit the actual device.

[0019] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase at various times in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] The present application provides a compensation method for a display panel, which includes but is not limited to the following embodiments and combinations of the following embodiments.

[0021] In one embodiment, as shown in FIG. 2 , the compensation method for the display panel includes but is not limited to the following steps.

[0022] S1. Obtain a first compensated grayscale corresponding to a first original grayscale of a first sub-pixel in a first display portion, and obtain a second compensated grayscale corresponding to the first original grayscale of a second sub-pixel in a second display portion, wherein the color of the first sub-pixel is the same as the color of the second sub-pixel, the first compensated grayscale is determined at least based on the second brightness of the second sub-pixel at the first original grayscale, and the second compensated grayscale is determined at least based on the first brightness of the first sub-pixel at the first original grayscale.

[0023] Specifically, the display panel including the first display portion and the second display portion can be a self-luminous display panel or a liquid crystal display panel. In a self-luminous display panel, subpixels emit light through a self-luminous device driven by a driving current generated by a data voltage, and the brightness of the subpixel is related to the current flowing through the self-luminous device and the duration of the current. In a liquid crystal display panel, subpixels emit light through a liquid crystal layer when light from a backlight passes through the liquid crystal layer, and the transmittance of the liquid crystal layer is related to the voltage applied across the liquid crystal layer.

[0024] Among them, the steps before step S1 may include but are not limited to the following steps: dividing the display area of ​​the display panel into at least a first display part and a second display part, the first display part includes a plurality of first sub-pixels, the second display part includes a plurality of second sub-pixels, and the color of the first sub-pixels is the same as the color of the second sub-pixels.

[0025] Prior to step S1, the following steps may also be included but are not limited to: obtaining a first mapping relationship between the brightness value and the grayscale value of the first sub-pixel, and a second mapping relationship between the brightness value and the grayscale value of the second sub-pixel. Furthermore, the first brightness, the second brightness, the first compensated grayscale, and the second compensated grayscale are determined based on the first mapping relationship and the second mapping relationship.

[0026] Specifically, each subpixel in a display panel may have a corresponding gamma mapping (which may include, but is not limited to, a gamma curve or a gamma table). This description uses a gamma curve as an example. Furthermore, if differences between different regions of the display panel are not considered, subpixels of the same color can be considered to correspond to the same gamma curve. Specifically, as shown in FIG3 , the abscissa of the gamma curve may represent the grayscale value corresponding to the data voltage applied to the subpixel. Grayscale values ​​and data voltages can be considered to have a one-to-one correspondence. The ordinate of the gamma curve represents the luminance value exhibited by the subpixel when illuminated by the data voltage. Different gamma curves may have different relationships between luminance values ​​and grayscale values. In particular, to account for differences between different regions of the display panel, in this embodiment, even if a first subpixel in the first display portion and a second subpixel in the second display portion have the same color, they can each have a first gamma curve (included in the first mapping) and a second gamma curve (included in the second mapping) as their respective gamma curves.

[0027] Specifically, the first brightness in step S1 of this embodiment may be the brightness value corresponding to when the grayscale value in the first gamma curve is equal to the first original grayscale. Similarly, the second brightness may be the brightness value corresponding to when the grayscale value in the second gamma curve is equal to the first original grayscale. The first brightness is not equal to the second brightness, and the difference between the first brightness and the second brightness may represent the brightness difference exhibited by sub-pixels of the same color (e.g., green) (i.e., the first sub-pixel and the second sub-pixel) when the grayscale values ​​are both equal to the first original grayscale. It should be noted that if such a brightness difference exists, at least the sub-pixels of the same color (e.g., green) in the first display portion and the second display portion will exhibit different brightness when illuminated by the same data voltage, resulting in uneven display.

[0028] As discussed above, in this embodiment, the first compensated grayscale can also be determined based on the first gamma curve, at least according to the grayscale value corresponding to the data voltage to which the first sub-pixel is required to be applied when the light is emitted at the second brightness. Similarly, the second compensated grayscale can also be determined based on the second gamma curve, at least according to the grayscale value corresponding to the data voltage to which the second sub-pixel is required to be applied when the light is emitted at the first brightness. Therefore, it can be considered that the first compensated grayscale takes into account the difference between the first gamma curve of the first sub-pixel and the second gamma curve of the second sub-pixel at the first original grayscale, and the second compensated grayscale also takes into account the difference between the second gamma curve of the second sub-pixel and the first gamma curve of the first sub-pixel at the first original grayscale.

[0029] S2, controlling the first sub-pixel in the first part and the second sub-pixel in the first part to emit light at the first original grayscale, controlling the first sub-pixel in the second part to emit light at the first compensated grayscale, and controlling the second sub-pixel in the second part to emit light at the second compensated grayscale.

[0030] Specifically, in combination with the above discussion, it can be seen that this embodiment can be presented as: in the first display part, the first sub-pixels in the first part emit light at the first original grayscale to present a first brightness, and the first sub-pixels in the second part emit light at the first compensated grayscale to present a brightness limited by the second brightness (first compensated brightness); in the second display part, the second sub-pixels in the first part emit light at the second original grayscale to present a second brightness (second compensated brightness), and the second sub-pixels in the second part emit light at the second compensated grayscale to present a brightness limited by the first brightness.

[0031] It can be understood that the brightness ultimately presented in the first display portion is composed of multiple first brightnesses and multiple first compensation brightnesses (limited by the second brightness). Compared to when the brightness is entirely composed of the first brightness, it can be closer to the total brightness of the second display portion composed entirely of the second brightness, thereby reducing the difference between the display images of the first display portion and the second display portion. Furthermore, the brightness ultimately presented in the second display portion is composed of multiple second brightnesses and multiple second compensation brightnesses (limited by the first brightness). Compared to when the brightness is entirely composed of the second brightness, it can be closer to the total brightness of the first display portion composed entirely of the first brightness, thereby similarly reducing the difference between the display images of the second display portion and the first display portion. Therefore, this embodiment can effectively reduce the brightness difference of the display images of different areas in the display panel and improve the uniformity of the overall display image.

[0032] In particular, the first compensation grayscale is the grayscale value of the first sub-pixel corresponding to the second brightness, and the second compensation grayscale is the grayscale value of the second sub-pixel corresponding to the first brightness. Specifically, here, the grayscale value corresponding to the data voltage required to be applied to the first sub-pixel when emitting light at the second brightness is obtained based on the first gamma curve as the first compensation grayscale. Similarly, the grayscale value corresponding to the data voltage required to be applied to the second sub-pixel when emitting light at the first brightness can also be obtained based on the second gamma curve as the second compensation grayscale. In other words, it can be considered that the brightness ultimately presented in the first display portion is composed of multiple first brightnesses and multiple second brightnesses, and the brightness ultimately presented in the second display portion is composed of multiple second brightnesses and multiple first brightnesses. Therefore, the brightness ultimately presented in both display portions can be composed of the two elements of the first brightness and the second brightness. Since the elements are the same, the total brightness can also be close.

[0033] Furthermore, the number of the first sub-pixels in the first portion is equal to the number of the second sub-pixels in the second portion, and the number of the first sub-pixels in the second portion is equal to the number of the second sub-pixels in the first portion. As discussed above, it can be considered that the number of first sub-pixels presenting the first brightness in the first display portion is equal to the number of second sub-pixels presenting the second compensated brightness (e.g., equal to the first brightness) in the second display portion, and the number of first sub-pixels presenting the first compensated brightness (e.g., equal to the second brightness) in the first display portion is equal to the number of second sub-pixels presenting the second brightness in the second display portion. This means that the number of sub-pixels presenting the first brightness in the two display portions is the same, and the number of sub-pixels presenting the second brightness can also be the same, so that the brightness ultimately presented by the two display portions can be further equal.

[0034] As shown in FIG4 , in the first display portion A1, the first sub-pixels in the first portion include a plurality of first sub-pixel groups 101, and the first sub-pixels in the second portion include a plurality of second sub-pixel groups 102, and the plurality of first sub-pixel groups 101 and the plurality of second sub-pixel groups 102 are alternately arranged along the first direction D1; in the second display portion A2, the second sub-pixels in the first portion include a plurality of third sub-pixel groups 103, and the second sub-pixels in the second portion include a plurality of fourth sub-pixel groups 104, and the plurality of third sub-pixel groups 103 and the plurality of fourth sub-pixel groups 104 are alternately arranged along the first direction.

[0035] Specifically, in conjunction with FIG1 , a three-gate drive architecture is used as an example for explanation, that is, each row of sub-pixels can have the same color, and the colors of two adjacent rows of sub-pixels can be different. For example, in the first direction D1 (column direction), a row of blue sub-pixels B, a row of green sub-pixels G, and a row of red sub-pixels R can be used as the minimum repeating unit and are arranged repeatedly in sequence. In the second direction D2 (row direction), multiple columns of sub-pixels can be arranged, and each column of sub-pixels can use a blue sub-pixel B, a green sub-pixel G, and a color sub-pixel R as the minimum repeating unit and are arranged repeatedly in sequence.

[0036] Among them, taking the example that the first sub-pixel and the second sub-pixel are both green sub-pixels G, the first sub-pixel group 101 and the second sub-pixel group 102 in this embodiment can be the green sub-pixels G located in odd rows (for example, the 1st and 3rd rows in the first display part A1) and the green sub-pixels G located in even rows (for example, the 2nd and 4th rows in the first display part A1) among the multiple rows of first sub-pixels (green sub-pixels G); similarly, the third sub-pixel group 103 and the fourth sub-pixel group 104 can be the green sub-pixels G located in odd rows (for example, the 1st and 3rd rows in the second display part A2) and the green sub-pixels G located in even rows (for example, the 2nd and 4th rows in the second display part A2) among the multiple rows of second sub-pixels (green sub-pixels G).

[0037] Specifically, as shown in Figure 4, a first original grayscale equal to 48 is used as an example for explanation. If the brightness presented when the grayscale value of the first sub-pixel in the first display part A1 is equal to 70 can reach the same brightness (second brightness) presented when the grayscale value of the second sub-pixel in the second display part A2 is the first original grayscale (equal to 48), then the first compensated grayscale is equal to 70; similarly, if the brightness presented when the grayscale value of the second sub-pixel in the second display part A2 is equal to 30 can reach the same brightness (first brightness) presented when the grayscale value of the first sub-pixel in the first display part A1 is the first original grayscale (equal to 48), then the second compensated grayscale is equal to 30.

[0038] It is understood that this allows the first sub-pixels presenting the first brightness and the second brightness in the first display portion A1 to be evenly distributed, and the second sub-pixels presenting the first brightness and the second brightness in the second display portion A2 to be evenly distributed, thereby improving the uniformity of brightness in a smaller display area. Of course, the sub-pixels presenting the first brightness and the second brightness in the two display portions can also be evenly distributed using other arrangements, such as alternating distribution in the row direction, or alternating distribution in both the row and column directions.

[0039] Specifically, in combination with the above discussion, that is, as shown in FIG5 , step S1 may include but is not limited to the following steps.

[0040] S101 , obtaining a first brightness of a first sub-pixel in a first display portion at a first original grayscale, and a second brightness of a second sub-pixel in a second display portion at the first original grayscale.

[0041] As discussed above, the first brightness and the second brightness may be determined according to a first gamma curve and a second gamma curve, respectively.

[0042] S102: Determine a first compensated grayscale corresponding to the first sub-pixel at least based on the second brightness, and determine a second compensated grayscale corresponding to the second sub-pixel at least based on the first brightness.

[0043] As discussed above, the first compensation grayscale and the second compensation grayscale may also be determined according to the first gamma curve and the second gamma curve, respectively.

[0044] It should be noted that, in case 1, the execution subject of step S1 and the execution subjects of steps S101 to S102 can be the display panel itself and a non-panel itself (such as a compensation grayscale generation device), that is, it can be considered that before the panel leaves the factory, the display panel can be debugged by the compensation grayscale generation device using but not limited to steps S101 and S102 to determine the first compensation grayscale corresponding to the first original grayscale of the first sub-pixel and the second compensation grayscale corresponding to the first original grayscale of the second sub-pixel, and the first compensation grayscale and the second compensation grayscale are stored in the display panel. When the panel leaves the factory, the above compensation grayscale can be called as needed during the picture display process to execute step S2 (executed by the display panel); in case 1, the execution subject of step S1 and the execution subjects of steps S101 to S102 can both be the display panel itself, that is, the display panel can determine and directly call the first compensation grayscale and the second compensation grayscale before or after leaving the factory.

[0045] In one embodiment, as shown in Figures 6 to 8, the display panel 100 includes a first source driver chip 001 and a second source driver chip 002, wherein, as shown in Figures 6 and 7, the first display portion A1 and the second display portion A2 are electrically connected to the first source driver chip 001 and the second source driver chip 002, respectively, or, as shown in Figure 8, the first display portion A1 and the second display portion A2 are both electrically connected to the first source driver chip 001, and the resistance between the first source driver chip 001 and the first source driver chip 001 is different.

[0046] Specifically, the display panel 100 may further include a mainboard 200 electrically connected to a plurality of source driver chips (including but not limited to a first source driver chip 001 and a second source driver chip 002). The mainboard may include but not limited to a power management module 201 and a timing control module 202. The power management module 201 may transmit a gamma voltage to each source driver chip, and transmit a corresponding image signal and an operating voltage to the timing control module 202. Driven by the operating voltage, the timing control module 202 converts the image signal into a corresponding original data signal transmitted to each source driver chip. Each source driver chip may generate a data signal loaded into a corresponding sub-pixel based on the gamma voltage and the corresponding original data signal.

[0047] It should be noted that, on the one hand, due to the difference in transmission distances between the power management module 201 and different source driver chips, for example, when the power management module 201 is arranged near the middle of the display panel 100, it can be considered that the gamma voltage will first pass through the second source driver chip 002 and then pass through the first source driver chip 001. Taking into account the influence of the resistance of the components, the data voltage acting on the first display part A1 electrically connected to the first source driver chip 001 is lower than the data voltage acting on the second display part A2 electrically connected to the second source driver chip 002, which will cause uneven screen display; on the other hand, even for the first display part A1 and the second display part A2 that are electrically connected to the first source driver chip 001, due to the difference in transmission distances between the first source driver chip 001 and the two, the resistance between the two and the first source driver chip 001 is different, which will also cause uneven screen display.

[0048] It can be understood that in this embodiment, the first display unit A1 and the second display unit A2 in the above two scenarios are configured as described above, which can improve the uneven display phenomenon caused by at least one of the above two reasons. Further, as shown in Figures 6 and 7, if the display panel 100 is divided into a fourth display unit A4 and a third display unit A3 that are symmetrical with the first display unit A1 and the second display unit A2, respectively, it can be considered that the transmission distance between the power management module 201 and the second display unit A2 and the third display unit A3 is equivalent, and it can be considered that there is almost no "dividing line" between the display screens of the two. Therefore, the above method for improving the "dividing line" between the first display unit A1 and the second display unit A2 can be referred to to improve the "dividing line" between the third display unit A3 and the fourth display unit A4. Similarly, as shown in Figure 8, if the fourth display unit A4 and the third display unit A3 are symmetrical with respect to the first display unit A1 and the second display unit A2 in the first direction D1, respectively, the above method can also be used to improve the "dividing line" between the third display unit A3 and the fourth display unit A4.

[0049] In one embodiment, as shown in FIG9 , the method may further include but is not limited to the following steps and a combination of the following steps.

[0050] S3, obtaining a third compensated grayscale corresponding to the first original grayscale of the third sub-pixel in the third display part, and obtaining a fourth compensated grayscale corresponding to the first original grayscale of the fourth sub-pixel in the fourth display part, the color of the third sub-pixel and the color of the fourth sub-pixel are both the same as the color of the first sub-pixel, the third compensated grayscale is determined at least based on the fourth brightness of the fourth sub-pixel at the first original grayscale, and the fourth compensated grayscale is determined at least based on the third brightness of the third sub-pixel at the first original grayscale.

[0051] Similarly, step S3 may also include but not include the following steps: dividing the display area of ​​the display panel into at least a third display part and a fourth display part, the third display part includes a plurality of third sub-pixels, the fourth display part includes a plurality of fourth sub-pixels, and the colors of the third sub-pixels and the fourth sub-pixels are both the same as the color of the first sub-pixel.

[0052] Specifically, the third display unit, third sub-pixel, fourth display unit and fourth sub-pixel in this embodiment can refer to the relevant descriptions of the first display unit, first sub-pixel, second display unit and second sub-pixel above, respectively. The description of obtaining the third compensation grayscale and the fourth compensation grayscale in this embodiment can refer to the description of obtaining the first compensation grayscale and the second compensation grayscale in step S1 above.

[0053] S4, determining that the fifth sub-pixel in the fifth display portion corresponds to the fifth compensated grayscale of the first original grayscale based on the first compensated grayscale and the third compensated grayscale, and determining that the sixth sub-pixel in the sixth display portion corresponds to the sixth compensated grayscale of the first original grayscale based on the second compensated grayscale and the fourth compensated grayscale, the color of the fifth sub-pixel and the color of the sixth sub-pixel being the same as the color of the first sub-pixel.

[0054] Similarly, step S3 may also include but not include the following steps: dividing the display area of ​​the display panel into at least a fifth display part and a sixth display part, the fifth display part includes a plurality of fifth sub-pixels, the sixth display part includes a plurality of sixth sub-pixels, and the colors of the fifth sub-pixels and the sixth sub-pixels are both the same as the color of the first sub-pixel.

[0055] As shown in FIG10 , the first display portion A1, the third display portion A3, and the fifth display portion A5 are all electrically connected to the first source driver chip 001, and a first resistor, a third resistor, and a fifth resistor are respectively provided between the three and the first source driver chip 001. The second display portion A2, the fourth display portion A4, and the sixth display portion A6 are all electrically connected to the second source driver chip 002, and a second resistor, a fourth resistor, and a sixth resistor are respectively provided between the three and the second source driver chip 002. The first resistor is equal to the second resistor. resistance, the third resistance is equal to the fourth resistance, the fifth resistance is equal to the sixth resistance, based on the connection structure shown in FIG10 , it can be considered that the first display portion A1, the third display portion A3 and the fifth display portion A5 are arranged in the same column (the relative positions of the three are not limited), the second display portion A2, the fourth display portion A4 and the sixth display portion A6 are arranged in the same column (the relative positions of the three are the same as the relative positions of the previous three), the first display portion A1 and the second display portion A2 are arranged in the same row, the fifth display portion A5 and the sixth display portion A6 are arranged in the same row, and the third display portion A3 and the fourth display portion A4 are arranged in the same row;

[0056] Alternatively, as shown in FIG11 , the first display portion A1 and the second display portion A2 are both electrically connected to the first source driver chip 001, and a first resistor and a second resistor are respectively provided between the first source driver chip 001 and the third display portion A3 and the fourth display portion A4 are both electrically connected to the second source driver chip 002, and a third resistor and a fourth resistor are respectively provided between the second source driver chip 002 and the fifth display portion A5 and the sixth display portion A6 are both electrically connected to the third source driver chip 003, and a fifth resistor and a fourth resistor are respectively provided between the third source driver chip 003 and the sixth display portion A5. 11 , it can be considered that the first display part A1, the third display part A3 and the fifth display part A5 are arranged in the same row (the relative positions of the three are not limited), the second display part A2, the fourth display part A4 and the sixth display part A6 are arranged in the same row (the relative positions of the three are the same as the previous three relative positions), the first display part A1 and the second display part A2 are arranged in the same column, the fifth display part A5 and the sixth display part A6 are arranged in the same column, and the third display part A3 and the fourth display part A4 are arranged in the same column.

[0057] Specifically, the resistance value mentioned in this embodiment can be equivalent to describing the length of the transmission path between the sub-pixel and the corresponding source driver chip. This embodiment can determine the fifth compensation grayscale and the sixth compensation grayscale by, but not limited to, using linear interpolation. For example, based on the degree of difference between the first compensation grayscale and the third compensation grayscale and the relative positions of the fifth sub-pixel and the first sub-pixel and the third sub-pixel, the fifth compensation grayscale corresponding to the fifth sub-pixel can be determined. The sixth compensation grayscale can be determined similarly.

[0058] S5, controlling the fifth sub-pixel in the first part and the sixth sub-pixel in the first part to emit light at the first original grayscale, controlling the fifth sub-pixel in the second part to emit light at the fifth compensated grayscale, and controlling the sixth sub-pixel in the second part to emit light at the sixth compensated grayscale.

[0059] Similarly, reference can be made to step S2 to control the light-emitting mode of the third sub-pixel in the third display part A3 and the fourth sub-pixel in the fourth display part A4, and the light-emitting mode of the fifth sub-pixel in the fifth display part A5 and the sixth sub-pixel in the sixth display part A6 are also controlled accordingly as in step S2.

[0060] Similarly, this embodiment can reduce the difference between the display images of the third display portion A3 and the fourth display portion A4, and can also reduce the difference between the display images of the fifth display portion A5 and the sixth display portion A6. Therefore, this embodiment can further effectively reduce the brightness difference between the display images of different areas in the display panel, thereby improving the uniformity of the overall display image.

[0061] In one embodiment, as shown in FIG12 , the method may further include but is not limited to the following steps and combinations thereof.

[0062] S6 , determining a third compensated grayscale corresponding to the first original grayscale for a third sub-pixel in a third display portion according to the first compensated grayscale and the second compensated grayscale.

[0063] As shown in FIG13 , the first display portion A1, the second display portion A2, and the third display portion A3 are all electrically connected to the first source driver chip 001. Based on the connection structure shown in FIG13 , it can be considered that the first display portion A1, the second display portion A2, and the third display portion A3 are arranged in the same column.

[0064] Alternatively, as shown in Figure 14, the three are electrically connected to the second source driver chip 002, the third source driver chip 003 and the fourth source driver chip 004, respectively (herein, the first source driver chip 001 to the fourth source driver chip 004 are provided as an example), and the resistance between the three and the second source driver chip 002, the third source driver chip 003 and the fourth source driver chip 004 is equal (since the second source driver chip 002 to the fourth source driver chip 004 are arranged close to the center of the display panel 100, the horizontal distance between any two of the three can be ignored here). Based on the connection structure shown in Figure 14, it can be considered that the first display part A1, the second display part A2 and the third display part A3 are arranged in the same row.

[0065] Specifically, as discussed above, the first compensated grayscale is determined at least based on the second brightness of the second sub-pixel at the first original grayscale, and the second compensated grayscale is determined at least based on the first brightness of the first sub-pixel at the first original grayscale. Further, it can be considered that the brightness of the first sub-pixel at the first compensated grayscale is equal to the second brightness, and the brightness of the second sub-pixel at the second compensated grayscale is equal to the first brightness; similarly, the third compensated grayscale can be determined by, but not limited to, linear interpolation, for example, based on the degree of difference between the first compensated grayscale and the second compensated grayscale and the relative positions of the third sub-pixel, the first sub-pixel and the second sub-pixel, to determine the third grayscale compensation corresponding to the third sub-pixel.

[0066] S7, controlling the third sub-pixels in the first part to emit light at the first original grayscale, and controlling the third sub-pixels in the second part to emit light at the third compensated grayscale.

[0067] It can be understood that, in conjunction with the above discussion, the total brightness of both the first display portion A1 and the second display portion A2 is composed of multiple first brightnesses and multiple second brightnesses. Ultimately, all sub-pixels of that color will exhibit a brightness value between the first brightness and the second brightness, and the brightness of the two can be equal. It can be considered that the third sub-pixel in this embodiment emits light at the first original grayscale and the third compensated grayscale at the third brightness and the fourth brightness, respectively. For example, when the third display portion A3 is located between the first display portion A1 and the second display portion A2, it can be considered that the third compensated grayscale is between the first compensated grayscale and the second compensated grayscale, and the third brightness and the fourth brightness (which can also be equal) are both between the first brightness and the second brightness. This allows the total brightness of the third display portion A3 to approach the total brightness of the first display portion A1 and the total brightness of the second display portion A2.

[0068] In one embodiment, as shown in FIG15 , the method may further include but is not limited to the following steps and combinations thereof.

[0069] S8, obtaining a third compensated grayscale corresponding to the second original grayscale of the first sub-pixel, and obtaining a fourth compensated grayscale corresponding to the second original grayscale of the second sub-pixel, the three compensated grayscales being determined at least based on the fourth brightness of the second sub-pixel at the second original grayscale, and the fourth compensated grayscale being determined at least based on the third brightness of the first sub-pixel at the second original grayscale.

[0070] The second original grayscale may not be equal to the first original grayscale. Similarly, referring to the discussion of step S1, this embodiment can obtain the third compensated grayscale and the fourth compensated grayscale corresponding to the second original grayscale for the first sub-pixel and the second sub-pixel, respectively.

[0071] S9, determining that the first sub-pixel corresponds to a fifth compensated grayscale of the third original grayscale based on the first compensated grayscale and the third compensated grayscale, and determining that the second sub-pixel corresponds to a sixth compensated grayscale of the third original grayscale based on the second compensated grayscale and the fourth compensated grayscale.

[0072] The third original grayscale may not be equal to the first original grayscale and the second original grayscale. Similarly, in this embodiment, the fifth compensated grayscale and the sixth compensated grayscale may be determined by, but not limited to, linear interpolation. For example, the fifth compensated grayscale corresponding to the third original grayscale of the first sub-pixel may be determined based on the difference between the first compensated grayscale and the third compensated grayscale, and the relative positions of the third original grayscale, the first original grayscale, and the second original grayscale. The sixth compensated grayscale may be determined similarly.

[0073] In one embodiment, after step S2, the following steps may be included but not limited to: controlling the first part of the third sub-pixels in the first display part and the first part of the fourth sub-pixels in the second display part to emit light at the first original grayscale, and controlling the second part of the third sub-pixels in the first display part to emit light at the first compensated grayscale, and controlling the second part of the fourth sub-pixels in the second display part to emit light at the second compensated grayscale, wherein the color of the third sub-pixel is the same as the color of the fourth sub-pixel, and both colors are different from the color of the first sub-pixel.

[0074] That is, the first display portion further includes a plurality of third sub-pixels, and the second display portion further includes a plurality of fourth sub-pixels. The colors of the third sub-pixels and the fourth sub-pixels are the same, and both colors are different from the color of the first sub-pixel.

[0075] Specifically, in this embodiment, the first and second sub-pixels of the same color are respectively associated with the first and second compensated grayscales of the first original grayscale, and the third and fourth sub-pixels of the same color are respectively associated with the two compensated grayscales of the first original grayscale, thereby reducing the overall computational complexity. The first and second sub-pixels can both be green, which is the primary color that creates the "dividing line" in the prior art. Therefore, the corresponding compensation data can also be applied to sub-pixels of other colors.

[0076] The present application also provides a display panel for executing any of the display panel compensation methods described above.

[0077] The present application also provides a compensation grayscale generation device for generating the first compensation grayscale and the second compensation grayscale as described above.

[0078] The present application provides a display panel, a compensation method thereof, and a device for generating a compensated grayscale. By obtaining a first compensated grayscale corresponding to a first original grayscale of a first sub-pixel in a first display portion, and obtaining a second compensated grayscale corresponding to the first original grayscale of a second sub-pixel in a second display portion, the color of the first sub-pixel is the same as the color of the second sub-pixel, the first compensated grayscale is determined at least according to the second brightness of the second sub-pixel at the first original grayscale, and the second compensated grayscale is determined at least according to the first brightness of the first sub-pixel at the first original grayscale; the first sub-pixel in the first part and the second sub-pixel in the first part are controlled to emit light at the first original grayscale, and the first sub-pixel in the second part is controlled to emit light at the first compensated grayscale, and the second sub-pixel in the second part is controlled to emit light at the second compensated grayscale, so as to effectively reduce the brightness difference of the display screen in different areas of the display panel and improve the uniformity of the overall display screen.

[0079] The above is a detailed introduction to the display panel and its compensation method, as well as the compensation grayscale generation device provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements 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 application.

Claims

1. A compensation method for a display panel, wherein: include: Dividing a display area of ​​the display panel into at least a first display portion and a second display portion, wherein the first display portion includes a plurality of first sub-pixels, and the second display portion includes a plurality of second sub-pixels, and the colors of the first sub-pixels and the second sub-pixels are the same; Acquire a first compensated grayscale corresponding to a first original grayscale of the first sub-pixel, and acquire a second compensated grayscale corresponding to the first original grayscale of the second sub-pixel, wherein the first compensated grayscale is determined at least according to a second brightness of the second sub-pixel at the first original grayscale, and the second compensated grayscale is determined at least according to a first brightness of the first sub-pixel at the first original grayscale; The first sub-pixels in the first part and the second sub-pixels in the first part are controlled to emit light at the first original grayscale, the first sub-pixels in the second part are controlled to emit light at the first compensated grayscale, and the second sub-pixels in the second part are controlled to emit light at the second compensated grayscale.

2. The display panel compensation method according to claim 1, wherein: The step of acquiring a first compensated grayscale corresponding to a first original grayscale of the first sub-pixel, and acquiring a second compensated grayscale corresponding to the first original grayscale of the second sub-pixel, comprises: Acquire a first brightness of the first sub-pixel at a first original grayscale and a second brightness of the second sub-pixel at the first original grayscale; A first compensation grayscale corresponding to the first sub-pixel is determined at least according to the second brightness, and a second compensation grayscale corresponding to the second sub-pixel is determined at least according to the first brightness.

3. The display panel compensation method according to claim 1, wherein: The first compensation grayscale is a grayscale value of the first sub-pixel corresponding to the second brightness, and the second compensation grayscale is a grayscale value of the second sub-pixel corresponding to the first brightness.

4. The display panel compensation method according to claim 1, wherein: The number of the first sub-pixels in the first portion is equal to the number of the second sub-pixels in the second portion, and the number of the first sub-pixels in the second portion is equal to the number of the second sub-pixels in the first portion.

5. The display panel compensation method according to claim 4, wherein: The first sub-pixels in the first part include a plurality of first sub-pixel groups, the first sub-pixels in the second part include a plurality of second sub-pixel groups, and the plurality of first sub-pixel groups and the plurality of second sub-pixel groups are alternately arranged along a first direction; The first portion of the second sub-pixels includes a plurality of third sub-pixel groups, the second portion of the second sub-pixels includes a plurality of fourth sub-pixel groups, and the plurality of third sub-pixel groups and the plurality of fourth sub-pixel groups are alternately arranged along the first direction.

6. The display panel compensation method according to claim 1, wherein: The display panel includes a first source driver chip and a second source driver chip, the first display unit is electrically connected to the first source driver chip, and the second display unit is electrically connected to the second source driver chip, or the first display unit and the second display unit are both electrically connected to the first source driver chip, and the resistance between the first display unit and the first source driver chip is different.

7. The display panel compensation method according to claim 2, wherein: The display panel includes a first source driver chip and a second source driver chip, the first display unit is electrically connected to the first source driver chip, and the second display unit is electrically connected to the second source driver chip, or the first display unit and the second display unit are both electrically connected to the first source driver chip, and the resistance between the first display unit and the first source driver chip is different.

8. The display panel compensation method according to claim 3, wherein: The display panel includes a first source driver chip and a second source driver chip, the first display unit is electrically connected to the first source driver chip, and the second display unit is electrically connected to the second source driver chip, or the first display unit and the second display unit are both electrically connected to the first source driver chip, and the resistance between the first display unit and the first source driver chip is different.

9. The display panel compensation method according to claim 6, wherein: The method further comprises: The display area of ​​the display panel is further divided into at least a third display portion and a fourth display portion, the third display portion includes a plurality of third sub-pixels, the fourth display portion includes a plurality of fourth sub-pixels, and the colors of the third sub-pixels and the fourth sub-pixels are both the same as the color of the first sub-pixel; Acquire a third compensated grayscale corresponding to the first original grayscale of the third subpixel, and acquire a fourth compensated grayscale corresponding to the first original grayscale of the fourth subpixel, wherein the third compensated grayscale is determined at least according to a fourth brightness of the fourth subpixel at the first original grayscale, and the fourth compensated grayscale is determined at least according to a third brightness of the third subpixel at the first original grayscale; The display area of ​​the display panel is further divided into at least a fifth display portion and a sixth display portion, wherein the fifth display portion includes a plurality of fifth sub-pixels, and the sixth display portion includes a plurality of sixth sub-pixels, and the colors of the fifth sub-pixels and the sixth sub-pixels are both the same as the color of the first sub-pixel; Determine, according to the first compensated grayscale and the third compensated grayscale, a fifth compensated grayscale of the fifth subpixel corresponding to the first original grayscale, and determine, according to the second compensated grayscale and the fourth compensated grayscale, a sixth compensated grayscale of the sixth subpixel corresponding to the first original grayscale; Controlling the fifth sub-pixel in the first part and the sixth sub-pixel in the first part to emit light at the first original grayscale, controlling the fifth sub-pixel in the second part to emit light at the fifth compensated grayscale, and controlling the sixth sub-pixel in the second part to emit light at the sixth compensated grayscale; Wherein, the first display unit, the third display unit and the fifth display unit are all electrically connected to the first source driver chip, and there are a first resistor, a third resistor and a fifth resistor between the three and the first source driver chip, respectively; the second display unit, the fourth display unit and the sixth display unit are all electrically connected to the second source driver chip, and there are a second resistor, a fourth resistor and a sixth resistor between the three and the second source driver chip, respectively; the first resistor is equal to the second resistor, the third resistor is equal to the fourth resistor, and the fifth resistor is equal to the sixth resistor; Alternatively, the first display unit and the second display unit are both electrically connected to the first source driver chip, and a first resistor and a second resistor are respectively provided between the first source driver chip and the first display unit, the third display unit and the fourth display unit are both electrically connected to the second source driver chip, and a third resistor and a fourth resistor are respectively provided between the second source driver chip and the fifth display unit and the sixth display unit are both electrically connected to the third source driver chip, and a fifth resistor and a sixth resistor are respectively provided between the third source driver chip and the first resistor, the third resistor and the fifth resistor are equal, and the second resistor, the fourth resistor and the sixth resistor are equal.

10. The display panel compensation method according to claim 9, wherein: The method further comprises: Determining a third compensated grayscale of the third sub-pixel corresponding to the first original grayscale according to the first compensated grayscale and the second compensated grayscale; Controlling the third sub-pixel in the first part to emit light at the first original grayscale, and controlling the third sub-pixel in the second part to emit light at the third compensated grayscale; Among them, the first display unit, the second display unit and the third display unit are all electrically connected to the first source driver chip, or the three are electrically connected to the first source driver chip, the second source driver chip and the third source driver chip, respectively, and the resistance between the three and the first source driver chip, the second source driver chip and the third source driver chip is equal.

11. The display panel compensation method according to claim 1, wherein: The method further comprises: Acquire a third compensated grayscale corresponding to the second original grayscale of the first sub-pixel, and acquire a fourth compensated grayscale corresponding to the second original grayscale of the second sub-pixel, wherein the three compensated grayscales are determined at least according to a fourth brightness of the second sub-pixel at the second original grayscale, and the fourth compensated grayscale is determined at least according to a third brightness of the first sub-pixel at the second original grayscale; According to the first compensation grayscale and the third compensation grayscale, a fifth compensation grayscale of the first subpixel corresponding to the third original grayscale is determined, and according to the second compensation grayscale and the fourth compensation grayscale, a sixth compensation grayscale of the second subpixel corresponding to the third original grayscale is determined.

12. The display panel compensation method according to claim 2, wherein: The method further comprises: Acquire a third compensated grayscale corresponding to the second original grayscale of the first sub-pixel, and acquire a fourth compensated grayscale corresponding to the second original grayscale of the second sub-pixel, wherein the three compensated grayscales are determined at least according to a fourth brightness of the second sub-pixel at the second original grayscale, and the fourth compensated grayscale is determined at least according to a third brightness of the first sub-pixel at the second original grayscale; According to the first compensation grayscale and the third compensation grayscale, a fifth compensation grayscale of the first subpixel corresponding to the third original grayscale is determined, and according to the second compensation grayscale and the fourth compensation grayscale, a sixth compensation grayscale of the second subpixel corresponding to the third original grayscale is determined.

13. The display panel compensation method according to claim 1, wherein: Before the steps of obtaining a first compensated grayscale corresponding to the first original grayscale of the first sub-pixel and obtaining a second compensated grayscale corresponding to the first original grayscale of the second sub-pixel, the method includes: Acquire a first mapping relationship between the brightness value and the grayscale value of the first sub-pixel and a second mapping relationship between the brightness value and the grayscale value of the second sub-pixel; The first brightness, the second brightness, the first compensation grayscale and the second compensation grayscale are determined according to the first mapping relationship and the second mapping relationship.

14. The display panel compensation method according to claim 1, wherein: The first display portion further includes a plurality of third sub-pixels, and the second display portion further includes a plurality of fourth sub-pixels, the colors of the third sub-pixels are the same as the colors of the fourth sub-pixels, and both colors are different from the colors of the first sub-pixels; Wherein, after the steps of obtaining a first compensated grayscale corresponding to the first original grayscale of the first sub-pixel and obtaining a second compensated grayscale corresponding to the first original grayscale of the second sub-pixel, the method further comprises: The third subpixel in the first part and the fourth subpixel in the first part are controlled to emit light at the first original grayscale, the third subpixel in the second part is controlled to emit light at the first compensated grayscale, and the fourth subpixel in the second part is controlled to emit light at the second compensated grayscale.

15. A display panel, wherein: Used to perform the compensation method of the display panel as claimed in claim 1.

16. The display panel compensation method according to claim 1, wherein: The step of acquiring a first compensated grayscale corresponding to a first original grayscale of the first sub-pixel, and acquiring a second compensated grayscale corresponding to the first original grayscale of the second sub-pixel, comprises: Acquire a first brightness of the first sub-pixel at a first original grayscale and a second brightness of the second sub-pixel at the first original grayscale; A first compensation grayscale corresponding to the first sub-pixel is determined at least according to the second brightness, and a second compensation grayscale corresponding to the second sub-pixel is determined at least according to the first brightness.

17. The display panel compensation method according to claim 1, wherein: The first compensation grayscale is a grayscale value of the first sub-pixel corresponding to the second brightness, and the second compensation grayscale is a grayscale value of the second sub-pixel corresponding to the first brightness.

18. The display panel compensation method according to claim 1, wherein: The number of the first sub-pixels in the first portion is equal to the number of the second sub-pixels in the second portion, and the number of the first sub-pixels in the second portion is equal to the number of the second sub-pixels in the first portion.

19. The display panel compensation method according to claim 1, wherein: The display panel includes a first source driver chip and a second source driver chip, the first display unit is electrically connected to the first source driver chip, and the second display unit is electrically connected to the second source driver chip, or the first display unit and the second display unit are both electrically connected to the first source driver chip, and the resistance between the first display unit and the first source driver chip is different.

20. A device for generating a compensated grayscale, wherein: Used to generate the first compensation grayscale and the second compensation grayscale as claimed in claim 1.

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