Display compensation method for display panel, and drive chip and display apparatus

Abstract

Disclosed in the present disclosure are a display compensation method for a display panel, and a drive chip and a display apparatus. The display compensation method for a display panel comprises: identifying a current display mode of a display panel; if the current display mode is a display mode corresponding to a first angle of view, compensating for the brightness of the display panel in the first angle of view on the basis of a first compensation data table; and if the current display mode is a display mode corresponding to a second angle of view, compensating for the brightness of the display panel in the second angle of view on the basis of a second compensation data table.

Description

Display compensation method of display panel, driving chip and display device

[0001] Cross-reference to Related Applications

[0002] The present disclosure claims priority to Chinese Patent Application No. 202411045763.8, filed on July 31, 2024, entitled “Display compensation method of display panel, driving chip and display device”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of display, in particular to a display compensation method of display panel, a driving chip and a display device. BACKGROUND

[0004] With the development of display technology, the functions of display panels are becoming more and more diversified. For example, display panels can switch between different display modes. In different display modes, the viewing angles of display panels are different, so that the application occasions of display panels can be expanded.

[0005] However, different display modes of display panels can lead to different display effects, and existing compensation schemes cannot effectively compensate the brightness in different display modes at the same time.

[0006] SUMMARY

[0007] The present disclosure provides a display compensation method of display panel, a driving chip and a display device.

[0008] In a first aspect, the present disclosure provides a display compensation method of display panel, comprising: identifying a current display mode of the display panel; if the current display mode is a display mode corresponding to a first viewing angle, compensating the brightness of the display panel under the first viewing angle based on a first compensation data table; and if the current display mode is a display mode corresponding to a second viewing angle, compensating the brightness of the display panel under the second viewing angle based on a second compensation data table.

[0009] Based on the same technical concept, in a second aspect, the present disclosure provides a driving chip for driving a display panel, comprising:

[0010] a mode identification module configured to identify a current display mode of the display panel;

[0011] a compensation module configured to, if the current display mode is a display mode corresponding to a first viewing angle, compensate the brightness of the display panel under the first viewing angle based on a first compensation data table; and if the current display mode is a display mode corresponding to a second viewing angle, compensate the brightness of the display panel under the second viewing angle based on a second compensation data table.

[0012] Based on the same technical concept, in a third aspect, the embodiments of the present disclosure provide a display device, comprising a display panel, and a processor and a memory having stored computer program instructions, the processor executes the computer program instructions to implement the display compensation method of the display panel according to the embodiments of the first aspect.

[0013] Based on the same technical concept, in a fourth aspect, the embodiments of the present disclosure provide a computer readable storage medium, the computer readable storage medium has stored a computer program, the computer program is executed by a processor to implement the display compensation method of the display panel according to the embodiments of the first aspect.

[0014] Based on the same technical concept, in a fifth aspect, the embodiments of the present disclosure provide a computer program product, the computer program product comprises computer program instructions, the computer program instructions are executed by a processor to implement the display compensation method of the display panel according to the embodiments of the first aspect.

[0015] The above description is only a summary of the technical solutions of the present disclosure. In order to enable a more clear understanding of the technical means of the present disclosure, the following specific embodiments of the present disclosure are implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present disclosure more obvious and easy to understand, the following specific embodiments of the present disclosure are implemented. BRIEF DESCRIPTION OF DRAWINGS

[0016] Other features, objects and advantages of the present disclosure will become more apparent from the following detailed description of the non-limiting embodiments with reference to the drawings, wherein the same or similar reference signs represent the same or similar features, and the drawings are not drawn according to the actual scale.

[0017] Fig. 1 shows a schematic diagram of display effects of a display panel in different display modes;

[0018] Fig. 2 shows a schematic diagram of one flow of a display compensation method of a display panel according to the embodiments of the present disclosure;

[0019] Fig. 3 shows a schematic diagram of a top view structure of a partial area of a display panel according to the embodiments of the present disclosure;

[0020] Fig. 4 shows a schematic diagram of a cross-sectional structure of A-A' in Fig. 3;

[0021] Fig. 5 shows a schematic diagram of a compensation table in a display compensation method of a display panel according to the embodiments of the present disclosure;

[0022] Fig. 6 shows another schematic diagram of a flow of a display compensation method of a display panel according to the embodiments of the present disclosure;

[0023] Fig. 7 shows a schematic diagram of a compensation gain in a display compensation method of a display panel according to the embodiments of the present disclosure;

[0024] FIG. 8 shows another flow diagram of a display compensation method of a display panel according to an embodiment of the present disclosure;

[0025] FIG. 9 shows a display scenario diagram of a display compensation method of a display panel according to an embodiment of the present disclosure;

[0026] FIG. 10 shows another flow diagram of a display compensation method of a display panel according to an embodiment of the present disclosure;

[0027] FIG. 11 shows another display scenario diagram of a display compensation method of a display panel according to an embodiment of the present disclosure;

[0028] FIG. 12 shows another diagram of a compensation gain in a display compensation method of a display panel according to an embodiment of the present disclosure;

[0029] FIG. 13 shows a structure diagram of a driving chip according to an embodiment of the present disclosure;

[0030] FIG. 14 shows a structure diagram of a display device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0031] The features and exemplary embodiments of the various aspects of the present disclosure will be described in detail below with reference to the drawings. To make the purpose, technical solutions and advantages of the present disclosure more clear, the present disclosure will be further described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are configured only to explain the present disclosure, and are not configured to limit the present disclosure. The present disclosure can be implemented without some of the specific details by those skilled in the art. The following description of the embodiments is merely provided to better understand the present disclosure by showing examples of the present disclosure.

[0032] It should be noted that, in this document, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms “comprise”, “contain” or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the elements defined by the statement “comprise” do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0033] It should be understood that when describing the structure of a component, when one layer, one region is referred to as being located "on" or "above" another layer, another region, it can be directly located above the other layer, another region, or other layers or regions are included between it and the other layer, another region. And if the component is turned over, the layer, the region will be located "under" or "below" the other layer, another region.

[0034] It should be understood that the term "and / or" used herein only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0035] In the description of the embodiments of the disclosure, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanical connection, or it can be electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the disclosure can be understood according to the specific circumstances.

[0036] Various modifications and changes can be made to the present disclosure without departing from the spirit and scope of the present disclosure, which will be apparent to those skilled in the art. Therefore, the present disclosure is intended to cover the modifications and changes of the present disclosure falling within the scope of the corresponding claims (claimed technical solutions) and their equivalents. It should be noted that the embodiments provided by the embodiments of the present disclosure can be combined with each other without contradiction.

[0037] Before describing the technical solutions provided by the embodiments of the present disclosure, in order to facilitate the understanding of the embodiments of the present disclosure, the present disclosure first specifically describes the problems existing in the related art:

[0038] An organic light emitting diode (OLED) display panel has many advantages such as self-illumination, fast response, high brightness, thinness, and the like, and has gradually become a mainstream in the display field. Taking an OLED display panel as an example, the OLED display panel can switch between different display modes. In different display modes, the visual angle of the OLED display panel is different, so that the application occasions of the OLED display panel can be expanded. For example, the display panel can be applied to a central control display screen of a vehicle. When the vehicle is stopped, the display panel is in a wide visual angle display mode, and the driver and the user of the copilot can see the image displayed by the central control display screen. During the driving of the vehicle, the display panel is in a privacy display mode (i.e., a narrow visual angle display mode), and the image displayed by the central control display screen can be viewed by the copilot and cannot be viewed by the driver, thereby avoiding affecting the driving safety.

[0039] However, different display modes of the display panel can result in different display effects. For example, as shown in FIG. 1, the display effects of the display panel in a narrow visual angle display mode and a wide visual angle display mode are shown. In different display modes, the degree of mura (luminance unevenness) of the display panel is inconsistent. In the related art, the mura of the display panel in different display modes cannot be effectively compensated at the same time.

[0040] To solve the above technical problems, the display compensation method of the display panel, the driving chip, and the display device provided in the embodiments of the present disclosure can solve the technical problem that the mura of the display panel in different display modes cannot be effectively compensated at the same time in the related art.

[0041] The technical concept of the embodiments of the present disclosure is that different compensation data tables are set for different display modes, so that the corresponding compensation data of each display mode is compensated in a targeted manner. Specifically, when the display panel is driven to display, the current display mode of the display panel is judged, the compensation data table corresponding to the current display mode is called, and the luminance of the display panel in the current display mode is compensated based on the compensation data table corresponding to the current display mode. In this way, different compensation data is called for different display modes, so that the luminance in different display modes can be effectively compensated, thereby solving the technical problem that the mura of the display panel in different display modes cannot be effectively compensated at the same time in the related art.

[0042] First, the display compensation method of the display panel provided in the embodiments of the present disclosure is introduced.

[0043] As shown in FIG. 2, the display compensation method of the display panel provided in the embodiments of the present disclosure includes S10-S30.

[0044] S10, identify a current display mode of the display panel.

[0045] The display panel is configured to support multiple display modes, for example, the display panel supports display mode 1 to display mode n, n is an integer greater than or equal to 2. The current display mode is any one of display mode 1 to display mode n. For example, the current display mode of the display panel can be identified according to a mode selection signal, the mode selection signal is a signal input by a user, or the mode selection signal is a signal automatically set by a driving chip of the display panel according to an application scenario, or the mode selection signal is a signal set in other ways.

[0046] S20, if the current display mode is a display mode corresponding to a first viewing angle, compensating the luminance of the display panel under the first viewing angle based on a first compensation data table;

[0047] S30, if the current display mode is a display mode corresponding to a second viewing angle, compensating the luminance of the display panel under the second viewing angle based on a second compensation data table.

[0048] The display panel is configured to support at least a first display mode and a second display mode, the first display mode is a display mode corresponding to a first viewing angle, and the second display mode is a display mode corresponding to a second viewing angle, the first viewing angle and the second viewing angle are different. In this paper, taking the first viewing angle greater than the second viewing angle as an example, in this case, the display mode corresponding to the first viewing angle is a wide viewing angle display mode, and the display mode corresponding to the second viewing angle is a narrow viewing angle display mode.

[0049] As an example, in order to realize the display mode corresponding to different viewing angles, the pixels of the display panel are divided into first type pixels and second type pixels, the light emitting viewing angle of the first type pixels is the first viewing angle, and the light emitting viewing angle of the second type pixels is the second viewing angle. The first type pixels include first type sub-pixels of multiple light emitting colors, and the second type pixels include second type sub-pixels of multiple light emitting colors. For example, as shown in FIG. 3, the first type sub-pixels and the second type sub-pixels can be defined on the substrate. Each of the first type sub-pixels, the second type sub-pixels and the third type sub-pixels can have a first light emitting area EA1 and a second light emitting area EA2. The area of the second light emitting area EA2 can be smaller than the area of the first light emitting area EA1.

[0050] The sub-pixels each include a light emitting diode, wherein the light emitting diode of the first type pixels can be disposed in the first light emitting area EA1, and the light emitting diode of the second type pixels can be disposed in the second light emitting area EA2.

[0051] The first sub-pixel SP1, the second sub-pixel SP2 and the third sub-pixel SP3 can be red sub-pixels, green sub-pixels and blue sub-pixels respectively. Therefore, the first light-emitting diode and the second light-emitting diode of the first sub-pixel SP1 can emit red light, the first light-emitting diode and the second light-emitting diode of the second sub-pixel SP2 can emit green light, and the first light-emitting diode and the second light-emitting diode of the third sub-pixel SP3 can emit blue light.

[0052] For the sake of distinction, in FIG. 3, the different light-emitting color sub-pixels included in the first type of pixels are marked as R1, G1, B1 respectively, and the different light-emitting color sub-pixels included in the second type of pixels are marked as R2, G21, G22, B21, B22, B23 respectively.

[0053] For example, referring to FIG. 4, the red sub-pixel R1 of the first type of pixels and the red sub-pixel R2 of the second type of pixels are taken as examples. The red sub-pixel R1 and the red sub-pixel R2 are disposed on the substrate 2, and the substrate 2 includes a substrate 6 and an insulating layer 7. Each sub-pixel has a light-emitting structure 3, and any adjacent light-emitting structures 3 include a pixel definition layer 11. The light-emitting structure 3 includes an anode 12 and a cathode 14, and a light-emitting layer 13 between the anode 12 and the cathode 14. In addition, mark 8 in FIG. 4 represents an encapsulation layer. The substrate 2 includes a pixel circuit, and the red sub-pixel R1 and the red sub-pixel R2 can be driven by different pixel circuits respectively.

[0054] The light rays emitted by the red sub-pixel R1 and the red sub-pixel R2 are different in angle. For example, the red sub-pixel R1 emits light rays of a wide viewing angle, and the red sub-pixel R2 emits light rays of a narrow viewing angle. The light rays emitted by the red sub-pixel R1 and the red sub-pixel R2 can be made different in angle by any design, which is not limited in the present disclosure. For example, a light blocking pattern can be disposed around the red sub-pixel R2 to limit the light emission viewing angle of the red sub-pixel R2. For another example, a lens capable of condensing light can be disposed on the light emission path of the red sub-pixel R2 to limit the light emission viewing angle of the red sub-pixel R2.

[0055] It should be noted that FIG. 4 only takes the red sub-pixels R1 and R2 as examples, and the structures of sub-pixels of other light-emitting colors can be similar.

[0056] It should be further noted that the structures shown in FIGS. 3 and 4 are only examples and are not used to limit the present disclosure. The display compensation method provided by the present disclosure is universal, and can be applied to display panels of other structures that support different viewing angle corresponding display modes.

[0057] For example, the first compensation data table and / or the second compensation data table includes a plurality of compensation values corresponding to a plurality of target luminances respectively. Compensation values corresponding to luminances other than the target luminances can be obtained by interpolation.

[0058] The compensation values of the first compensation data table and / or the second compensation data table include any one of the following: gray scale values, data voltage values, gamma voltage values, register values, etc.

[0059] The display panel includes a plurality of sub-pixels of different light-emitting colors. The first compensation data table includes a plurality of first compensation data tables corresponding to the plurality of sub-pixels of different light-emitting colors respectively. The second compensation data table includes a plurality of second compensation data tables corresponding to the plurality of sub-pixels of different light-emitting colors respectively. In this way, each type of sub-pixel can be effectively compensated.

[0060] In some examples, the display panel includes first type of pixels and second type of pixels. The first type of pixels have a first light-emitting viewing angle. The second type of pixels have a second light-emitting viewing angle.

[0061] The first type of pixels include first type of sub-pixels of different light-emitting colors. The second type of pixels include second type of sub-pixels of different light-emitting colors. The first compensation data table includes compensation values corresponding to the first type of sub-pixels of different light-emitting colors at a plurality of target luminances respectively. The second compensation data table includes compensation values corresponding to the second type of sub-pixels of different light-emitting colors at the plurality of target luminances respectively.

[0062] For example, the first type of sub-pixels include first red sub-pixels, first green sub-pixels, and first blue sub-pixels. The first compensation data table includes compensation values corresponding to the first red sub-pixels, the first green sub-pixels, and the first blue sub-pixels at a plurality of target luminances respectively.

[0063] The second type of sub-pixels include second red sub-pixels, second green sub-pixels, and second blue sub-pixels. The second compensation data table includes compensation values corresponding to the second red sub-pixels, the second green sub-pixels, and the second blue sub-pixels at a plurality of target luminances respectively.

[0064] The first compensation data table and the second compensation data table are different data tables. The difference between the two includes at least one of the following: a range of compensation values, compensation values corresponding to the same target luminance, a number of compensation values, etc.

[0065] The first compensation data table and / or the second compensation data table are exemplary pre-debugged compensation data tables. For example, a plurality of display panels of the same batch or the same model can be selected as samples for debugging, and then a first compensation data table corresponding to a first viewing angle display mode and a second compensation data table corresponding to a second viewing angle display mode are debugged. The debugged compensation data tables can be shared by the plurality of display panels of the same batch and the same model.

[0066] The first compensation data table and / or the second compensation data table are stored in a storage module of a driving chip used to drive the display panel. When the driving chip drives the display panel to display, compensation values in different compensation data tables are called according to different display modes to compensate the brightness of the display panel.

[0067] The display compensation method of the display panel provided by the embodiments of the present disclosure can compensate the brightness of the display panel in the current display mode based on the compensation data table corresponding to the current display mode by judging the current display mode of the display panel when the display panel is driven to display. Different compensation data tables are set for different display modes, so that the display mode corresponding compensation data can be used for compensation for each display mode. In this way, different compensation data is called for different display modes, so that the brightness in different display modes can be effectively compensated, thereby solving the technical problem that mura in different display modes of the display panel cannot be effectively compensated simultaneously in the related art.

[0068] It can be understood that the display compensation method provided by the embodiments of the present disclosure can be used for display modes corresponding to three or more viewing angles in addition to display modes corresponding to two viewing angles. For example, for three different viewing angles, the display mode corresponding to the first viewing angle is configured with a first compensation data table, the display mode corresponding to the second viewing angle is configured with a second compensation data table, and the display mode corresponding to the third viewing angle is configured with a third compensation data table. The first compensation data table, the second compensation data table, and the third compensation data table are different from each other.

[0069] In addition, the display compensation method provided by the embodiments of the present disclosure can be used for display modes corresponding to other parameters in addition to display modes corresponding to different viewing angles. For example, display modes corresponding to different refresh rates, display modes corresponding to different resolutions, and the like, which are not listed one by one here.

[0070] The inventor has found that for display modes of different viewing angles, the driving voltage of the pixel, the brightness, and the number of pixels that need to emit light, and the light-emitting area of the pixels that need to emit light are different, so the mura compensation requirements for different viewing angles are also different.

[0071] In some examples, the range of compensation values of the first compensation data table and the range of compensation values of the second compensation data table are different. In this way, different compensation requirements of different viewing angles of the display mode can be met.

[0072] For example, as shown in FIG. 5, the compensation values of the first compensation data table and the second compensation data table are represented by binary, and the bit width of one of the compensation data tables can be 5 bits, and the bit width of the other of the compensation data tables can be 8 bits, and the first bit in the 5 bits and the 8 bits represents a sign bit.

[0073] For example, the range of gray scale values of the first compensation data table is -7 to +8, and the range of gray scale values of the second compensation data table is -127 to +128. Taking the range of gray scale values of the original gray scale that can be compensated for as -7 to +8 as an example, “-7” can represent that the gray scale after compensation is determined according to the original gray scale minus 7 gray scale values, and “+7” can represent that the gray scale after compensation is determined according to the original gray scale plus 8 gray scale values.

[0074] For example, in the reference design scheme, the pixel structure of the wide viewing angle and the pixel structure of the narrow viewing angle are not differentiated. For example, the light emitting areas of the wide viewing angle pixel and the narrow viewing angle pixel are the same, and neither of the wide viewing angle pixel and the narrow viewing angle pixel includes a lens (for example, a lens that condenses or diffuses light). In this case, the range of compensation values of the first compensation data table and the range of compensation values of the second compensation data table can be the same.

[0075] For example, unlike the reference design scheme, the pixel structure of the wide viewing angle and the pixel structure of the narrow viewing angle are differentiated. For example, the narrow viewing angle pixel can be provided with a lens, and the light emitting area of the narrow viewing angle pixel is relatively small. In this case, if mura is more serious in the narrow viewing angle display mode, the compensation range corresponding to the narrow viewing angle display mode can be relatively large. If mura is less serious in the narrow viewing angle display mode, the compensation range corresponding to the narrow viewing angle display mode can be relatively small. The degree of mura of the narrow viewing angle display mode and the wide viewing angle display mode can be detected without compensation, and then the compensation ranges corresponding to the two display modes are set according to the degrees of mura of the two display modes.

[0076] In some examples, the first viewing angle is greater than the second viewing angle, and a range of compensation values of the first compensation data table is smaller than a range of compensation values of the second compensation data table. In view of the fact that the luminous efficiency of the pixel in the narrow viewing angle display mode is high, the driving current required is small, and the mura effect caused by the threshold voltage (Vth) non-uniformity of the driving transistor in the pixel circuit is large, the compensation depth required by the narrow viewing angle display mode is high. The luminous efficiency of the pixel in the wide viewing angle display mode is low, the driving current required is large, and the mura effect caused by the threshold voltage non-uniformity is small, so the compensation depth required by the wide viewing angle display mode is weak.

[0077] In other examples, the first viewing angle is greater than the second viewing angle, and a range of compensation values of the first compensation data table is greater than a range of compensation values of the second compensation data table. For example, in view of the fact that the mura in the wide viewing angle display mode is more serious, the compensation range corresponding to the wide viewing angle display mode can be larger.

[0078] It can be understood that the compensation ranges of the first viewing angle display mode and the second viewing angle display mode can be determined according to actual conditions, for example, the compensation range corresponding to the narrow viewing angle display mode can be relatively large, or the compensation range corresponding to the wide viewing angle display mode can be relatively large. Alternatively, in other examples, the compensation ranges of the narrow viewing angle display mode and the wide viewing angle display mode can also be the same.

[0079] In some examples, as shown in FIG. 6, S20 includes S21, and S30 includes S31.

[0080] S21, if the current display mode is the display mode corresponding to the first viewing angle, the compensation data of the first compensation data table, the first initial driving data corresponding to the first viewing angle, and the first compensation gain are obtained, and the first compensation data after compensation is determined according to the compensation data of the first compensation data table, the first initial driving data, and the first compensation gain. The display panel is driven by using the first compensation data after compensation to display in the display mode corresponding to the first viewing angle.

[0081] The data type of the compensation data of the first compensation data table and the first initial driving data is the same. For example, both are any one of the following: gray scale value, voltage value, gamma voltage value, and register value.

[0082] The first compensation gain can adjust the compensation degree of the display mode corresponding to the first viewing angle. For example, according to different mura conditions, different first compensation gains can be used for adjustment to better adjust the display uniformity. The first compensation gain is pre-stored in the storage module of the driving chip. The first compensation gain can be set according to experience, or determined by actually debugging a sample panel.

[0083] S31, if the current display mode is the display mode corresponding to the second viewing angle, obtaining compensation data of the second compensation data table, second initial driving data corresponding to the second viewing angle and the second compensation gain, and determining second compensation data according to the compensation data of the second compensation data table, the second initial driving data and the first compensation gain, and driving the display panel to display in the display mode corresponding to the second viewing angle using the second compensation data.

[0084] Similarly, the compensation data of the second compensation data table and the second initial driving data are of the same data type. For example, both are any one of the following: gray scale value, voltage value, gamma voltage value, register value.

[0085] For example, the four are any one of the following: gray scale value, voltage value, gamma voltage value, register value.

[0086] The second compensation gain can adjust the compensation degree of the display mode corresponding to the second viewing angle. For example, different second compensation gains can be used to adjust according to different mura conditions to better adjust the display uniformity. The second compensation gain can be set according to experience or determined by actual debugging of a sample panel.

[0087] It can be understood that the first initial driving data and the second initial driving data are both driving data before compensation.

[0088] In some examples, S21 specifically includes: determining the first compensation data according to formula (1):

[0089] V11 = V10 + ΔV1 x gain1 (1)

[0090] Wherein, V11 represents the first compensation data, V10 represents the first initial driving data, ΔV1 represents the compensation data corresponding to the first compensation data table, and gain1 represents the first compensation gain.

[0091] In some examples, S31 specifically includes: determining the second compensation data according to the compensation data of the second compensation data table, the second initial driving data and the first compensation gain, including:

[0092] determining the second compensation data according to formula (2):

[0093] V21 = V20 + ΔV2 x gain2 (2)

[0094] V21 = V20 + AV2 x gain2 (2) wherein V21 represents second compensated data, V20 represents second initial driving data, AV2 represents compensation data corresponding to the second compensation data table, and gain2 represents a second compensation gain.

[0095] For example, when at least one of the compensation data, the initial driving data, and the compensation gain of the sub-pixels of different light-emitting colors is different, the compensated data of the sub-pixels of different light-emitting colors can be respectively calculated according to the formulas (1) and (2).

[0096] For example, when the sub-pixels of different light-emitting colors include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, the first compensated data of R\G\B can be determined according to the formulas (1.1)-(1.3), and the first compensated data of R\G\B can be determined according to the formulas (2.1)-(2.3).

[0097] V11_R = V10_R + AV1_R x gain1_R (1.1)

[0098] V11_G = V10_G + AV1_G x gain1_G (1.2)

[0099] V11_B = V10_B + AV1_B x gain1_B (1.3)

[0100] V21_R = V20_R + AV2_R x gain2_R (2.1)

[0101] V21_G = V20_G + AV2_G x gain2_G (2.2)

[0102] V21_B = V20_B + AV2_B x gain2_B (2.3)

[0103] It can be understood that V11_R represents the first compensated data of the red sub-pixel R, and other parameters are similar, which will not be described one by one here.

[0104] Of course, the calculation method shown in the formulas (1) and (2) is only an example, and in other examples, the compensated data can also be calculated in other ways. For example, V11 = (V10 + AV1) x gain1, V21 = (V20 + AV2) x gain2. The specific calculation method can be determined according to the compensation method based on when the compensation data table is debugged, and the present disclosure does not make mandatory limitations thereto.

[0105] In some examples, the first initial driving data and the second initial driving data are different at the same target brightness. The same target brightness refers to the same brightness that the display panel needs to reach when the display panel displays in the display mode corresponding to the first viewing angle and in the display mode corresponding to the second viewing angle respectively.

[0106] The luminous efficiency of the pixel of the display panel is different in the display mode corresponding to the first viewing angle and in the display mode corresponding to the second viewing angle, and the pixel needs different driving currents in the two display modes corresponding to the two viewing angles at the same target brightness, and thus the initial driving data in the two display modes corresponding to the two viewing angles is different.

[0107] The inventors have found through a large number of experimental researches that, as the target brightness changes, the mura in the first viewing angle display mode changes, the mura in the second viewing angle display mode changes, and the change rules of the mura in the two display modes corresponding to the two viewing angles are different. Therefore, as shown in FIG. 7, the change rules of the first compensation gain and the second compensation gain can be different as the target brightness changes.

[0108] In some examples, as shown in FIG. 7, curve 1 in FIG. 7 represents the first target compensation gain, and curve 2 represents the second target compensation gain. As the target brightness increases, the first target compensation gain first increases and then decreases; as the target brightness increases, the second target compensation gain gradually increases, wherein the first target compensation gain is one of the first compensation gain and the second compensation gain, and the second target compensation gain is the other of the first compensation gain and the second compensation gain.

[0109] The inventors have found through a large number of experimental researches that, setting the change rules of the first compensation gain and the second compensation gain as shown in FIG. 7 can achieve a good compensation effect on the mura of most display panels.

[0110] In some examples, as shown in FIG. 7, DOT1 in FIG. 7 represents the first target brightness, and at the first target brightness, the first target compensation gain and the second target compensation gain are equal. At least one target brightness, the mura degree corresponding to the first viewing angle display mode and the second viewing angle display mode can be the same, and thus at the first target brightness, the first target compensation gain and the second target compensation gain can be equal.

[0111] In some examples, please continue to refer to FIG. 7. In the case where the target brightness is less than the first target brightness, the first target compensation gain is greater than the second target compensation gain.

[0112] In some examples, in the case where the target brightness is greater than the first target brightness, the first target compensation gain is less than the second target compensation gain.

[0113] As an example, the first viewing angle is greater than the second viewing angle, the first target compensation gain is a first compensation gain corresponding to a first viewing angle display mode, and the second target compensation gain is a second compensation gain corresponding to a second viewing angle display mode.

[0114] As another example, the first viewing angle is greater than the second viewing angle, the first target compensation gain is the second compensation gain corresponding to the second viewing angle display mode, and the first target compensation gain is the first compensation gain corresponding to the first viewing angle display mode.

[0115] It should be noted that in other examples, the variation law of the compensation gain corresponding to each of the different viewing angle display modes can be set according to the actual compensation requirement of the different viewing angle display modes, and the present disclosure does not limit this.

[0116] In some embodiments, the display panel includes first type pixels and second type pixels, the light-emitting viewing angle of the first type pixels is a first viewing angle, and the light-emitting viewing angle of the second type pixels is a second viewing angle.

[0117] As shown in FIG. 8, S20 specifically includes S22, and S30 specifically includes S32.

[0118] S22, if the current display mode is a display mode corresponding to the first viewing angle, determining first compensation data corresponding to the first type pixels based on a first compensation data table, and driving the first type pixels to emit light by using the first compensation data, so as to compensate the luminance of the display panel when displaying in the display mode corresponding to the first viewing angle.

[0119] S32, if the current display mode is a display mode corresponding to the second viewing angle, determining second compensation data corresponding to the second type pixels based on a second compensation data table, and driving the second type pixels to emit light by using the second compensation data, so as to compensate the luminance of the display panel when displaying in the display mode corresponding to the second viewing angle.

[0120] S22 further includes controlling the second type pixels to be in a non-emitting state, and S32 further includes controlling the first type pixels to be in a non-emitting state. In the present embodiment, the display mode corresponding to the first viewing angle and the display mode corresponding to the second viewing angle do not share pixels, that is, part of the pixels emit light in the display mode corresponding to the first viewing angle, and another part of the pixels emit light in the display mode corresponding to the second viewing angle.

[0121] For example, as shown in FIG. 9, the first type of pixel includes a red sub-pixel R1, a green sub-pixel G1, and a blue sub-pixel B1. The second type of pixel includes a red sub-pixel R2, two green sub-pixels G21 and G22, and three blue sub-pixels B21, B22, and B23. In some driving modes, as shown in image a in FIG. 9, at the first viewing angle, the first type of pixel emits light, and the second type of pixel does not emit light; as shown in image b in FIG. 9, at the second viewing angle, the first type of pixel does not emit light, and the second type of pixel emits light. In FIG. 9, for the same sub-pixel, a black-filled sub-pixel represents a sub-pixel that does not emit light, and a white-filled sub-pixel represents a sub-pixel that emits light.

[0122] For example, as shown in FIG. 9, a dashed box represents a repeating unit, and the repeating unit includes the first type of pixel and the second type of pixel. The display panel includes a plurality of repeating units arranged in an array. In a certain display mode, in the same repeating unit, in the case of a plurality of sub-pixels of the same light-emitting color, the plurality of sub-pixels of the same light-emitting color share at least one of the following: initial driving data, a compensation data table, and a compensation gain. For example, at the second viewing angle, the green sub-pixels G21 and G22 share the second initial driving data, share the second compensation data table, and share the second compensation gain. For another example, at the second viewing angle, the blue sub-pixels B21, B22, and B23 share the second initial driving data, share the second compensation data table, and share the second compensation gain. At the same target brightness, the second initial driving data corresponding to sub-pixels of different colors can be different, the second compensation data table corresponding to sub-pixels of different colors can be different, and the second compensation gain corresponding to sub-pixels of different colors can be different.

[0123] As an example, in the display mode corresponding to the first viewing angle, the first initial driving data corresponding to the sub-pixels of different light-emitting colors in the first type of pixel are respectively as follows:

[0124] V10_R1 = V_r_wide;

[0125] V10_G1 = V_g_wide;

[0126] V10_B1 = V_b_wide.

[0127] In the display mode corresponding to the second viewing angle, the second initial driving data corresponding to the sub-pixels of different light-emitting colors in the second type of pixel are respectively as follows:

[0128] V20_R2 = V_r2;

[0129] V20_G21 = V20_G22 = V_g2;

[0130] V20_B21 = V20_B22 = V20_B23 = V_b2.

[0131] In some embodiments, the display panel comprises first type of pixels and second type of pixels, the first type of pixels have a first viewing angle, and the second type of pixels have a second viewing angle.

[0132] As shown in FIG. 10, S20 specifically comprises S23, and S30 specifically comprises S33.

[0133] In S23, if the current display mode is the display mode corresponding to the first viewing angle, first compensation data corresponding to the first type of pixels is determined based on a first compensation data table, the first type of pixels is driven to emit light by using the first compensation data, third compensation data corresponding to the second type of pixels is determined based on a second compensation data table, and the second type of pixels is driven to emit light by using the third compensation data, so as to compensate the luminance of the display panel when displaying in the display mode corresponding to the first viewing angle.

[0134] In S33, if the current display mode is the display mode corresponding to the second viewing angle, second compensation data corresponding to the second type of pixels is determined based on the second compensation data table, and the second type of pixels is driven to emit light by using the second compensation data, so as to compensate the luminance of the display panel when displaying in the display mode corresponding to the second viewing angle.

[0135] S33 further comprises: controlling the first type of pixels to be in a non-emitting state. In this embodiment, the display mode corresponding to the first viewing angle and the display mode corresponding to the second viewing angle share part of the pixels, that is, all the pixels emit light in the display mode corresponding to the first viewing angle, and only part of the pixels emit light in the display mode corresponding to the second viewing angle, so a part of the pixels are shared. Specifically, the second type of pixels emit light in both the display mode corresponding to the first viewing angle and the display mode corresponding to the second viewing angle, and the second type of pixels are shared.

[0136] In S23 and S33, the second type of pixels emit light, and the second type of pixels share the second compensation data table. Although the second type of pixels emit light in different display modes, the structure of the second type of pixels basically does not change with the change of the display mode, so the second type of pixels share the second compensation data table in different display modes, which basically does not affect the compensation effect, and sharing the compensation data table can reduce the occupied storage space.

[0137] For example, as shown in FIG. 11, the same parts of FIG. 11 and FIG. 9 are not repeated, and the different parts include: as shown in image c in FIG. 11, the first type of pixels emit light and the second type of pixels emit light under the first viewing angle; as shown in image d in FIG. 11, the first type of pixels do not emit light and the second type of pixels emit light under the second viewing angle.

[0138] For example, in FIG. 9, a dashed box represents a repeating unit including the first type of pixels and the second type of pixels, and the display panel includes a plurality of repeating units arranged in an array. In a certain display mode, in the case of a plurality of sub-pixels of the same light-emitting color in the same repeating unit, the plurality of sub-pixels of the same light-emitting color share at least one of the following: initial driving data, a compensation data table, and a compensation gain. For example, in the second viewing angle, the green sub-pixels G21 and G22 share the second initial driving data, share the second compensation data table, and share the second compensation gain. For another example, in the second viewing angle, the blue sub-pixels B21, B22, and B23 share the second initial driving data, share the second compensation data table, and share the second compensation gain. In the case of the same target brightness, the second initial driving data corresponding to different colors of sub-pixels can be different, the second compensation data table corresponding to different colors of sub-pixels can be different, and the second compensation gain corresponding to different colors of sub-pixels can be different.

[0139] In some examples, in the case that the second type of pixels emit light in both display modes of the two viewing angles, in the display mode corresponding to the second viewing angle, the initial driving data of the second type of pixels is the second initial driving data, and in the display mode corresponding to the first viewing angle, the initial driving data of the second type of pixels is the third initial driving data. In the case of the same target brightness, the second initial driving data and the third initial driving data are different.

[0140] As shown in FIG. 11, in the display mode corresponding to the first viewing angle (shown in image c), both the first type of pixels and the second type of pixels emit light, while in the display mode corresponding to the second viewing angle (shown in image d), only the second type of pixels emit light. That is, the number of pixels emitting light in the two modes is different, and therefore in the case of the same target brightness, the initial driving data corresponding to the second type of pixels in the two modes can be different.

[0141] As an example, in the display mode corresponding to the second viewing angle, the second initial driving data corresponding to the sub-pixels of each light-emitting color in the second type of pixels is respectively:

[0142] V20_R2 = V_r2;

[0143] V20_G21 = V20_G22 = V_g2;

[0144] V20_B21 = V20_B22 = V20_B23 = V_b2.

[0145] In the display mode corresponding to the first viewing angle, the third initial driving data corresponding to the sub-pixels of each light-emitting color in the second type of pixels is respectively:

[0146] V30_R2 = V_r1;

[0147] V30_G21 = V30_G22 = V_g1;

[0148] V30_B21 = V30_B22 = V30_B23 = V_b1.

[0149] In some examples, when the second type of pixels emit light in both display modes of the two viewing angles, the compensation gain of the second type of pixels in the display mode corresponding to the second viewing angle is the second compensation gain, and the compensation gain of the second type of pixels in the display mode corresponding to the first viewing angle is the third compensation gain; the second compensation gain and the third compensation gain are different at the same target brightness.

[0150] As shown in FIG. 11, in the display mode corresponding to the first viewing angle (shown in image c), both the first type of pixels and the second type of pixels emit light, while in the display mode corresponding to the second viewing angle (shown in image d), only the second type of pixels emit light, that is, the number of pixels emitting light in the two modes is different, and the compensation corresponding to the second type of pixels in the two modes may be different, so the compensation gain corresponding to the second type of pixels in the two modes may be different at the same target brightness.

[0151] As an example, as shown in FIG. 12, curve 1 in FIG. 12 represents the first target compensation gain, curve 2 represents the second target compensation gain, and curve 3 represents the third compensation gain. One of the first target compensation gain and the second target compensation gain is the first compensation gain, and the other is the second compensation gain. For example, curve 1 represents the first compensation gain, curve 2 represents the second compensation gain, and curve 3 represents the third compensation gain. Among them, in the display mode corresponding to the first viewing angle, the compensation gain corresponding to the first type of pixels is the first compensation gain; in the display mode corresponding to the second viewing angle, the compensation gain corresponding to the second type of pixels is the second compensation gain; in the display mode corresponding to the first viewing angle, the compensation gain corresponding to the second type of pixels is the third compensation gain.

[0152] In some examples, when the second type of pixels emit light in both display modes of the two viewing angles, as shown in FIG. 12, one of curve 1 and curve 2 is the second compensation gain, and curve 3 represents the third compensation gain, and the second compensation gain is greater than the third compensation gain at the same target brightness.

[0153] In the display mode corresponding to the first viewing angle, both the first type of pixels and the second type of pixels emit light; while in the display mode corresponding to the second viewing angle, only the second type of pixels emit light, so the regulation strength of the compensation for the first type of pixels can be relatively small in the display mode corresponding to the first viewing angle, so the third compensation gain can be smaller than the second compensation gain at the same target brightness.

[0154] In some examples, as shown in FIG. 12, taking curve 2 as the second compensation gain, curve 3 represents the third compensation gain as an example, as the target brightness increases, the third compensation gain and the change rule are the same as the change rule of the second compensation gain.

[0155] The second compensation gain and the third compensation gain are compensation gains corresponding to the second type of pixels. The luminous characteristics of the same type of pixels do not change greatly with the display mode switching, and therefore the change rule of the third compensation gain can be the same as the change rule of the second compensation gain.

[0156] Of course, in other examples, the third compensation gain can be set according to experience or determined through actual debugging of a sample panel.

[0157] Based on the same technical concept, the embodiment of the present disclosure also provides a driving chip for driving a display panel. As shown in FIG. 13, the driving chip 100 provided by the embodiment of the present disclosure includes a mode recognition module 101 and a compensation module 102.

[0158] The mode recognition module 101 is configured to recognize a current display mode of the display panel.

[0159] The compensation module 102 is configured to, if the current display mode is a display mode corresponding to a first viewing angle, compensate for the brightness of the display panel under the first viewing angle based on a first compensation data table; and if the current display mode is a display mode corresponding to a second viewing angle, compensate for the brightness of the display panel under the second viewing angle based on a second compensation data table.

[0160] According to the driving chip provided by the embodiment of the present disclosure, when the display panel is driven to display, the current display mode of the display panel is judged, then the compensation data table corresponding to the current display mode is called, and the brightness of the display panel under the current display mode is compensated based on the compensation data table corresponding to the current display mode; different compensation data tables are set for different display modes, so that for each display mode, the display mode corresponding compensation data can be used for compensation, so that different compensation data is called for different display modes, so that the brightness under different display modes can be effectively compensated, thereby solving the technical problem that mura of the display panel under different display modes cannot be effectively compensated in the related art.

[0161] In the following examples, the driving chip can implement the steps corresponding to any one of the display compensation methods of the display panel, and can achieve the same technical effects. To avoid repetition, details are not repeated here.

[0162] In some examples, the range of compensation values of the first compensation data table and the range of compensation values of the second compensation data table are different.

[0163] In some examples, the first viewing angle is greater than the second viewing angle, and a range of compensation values of the first compensation data table is smaller than a range of compensation values of the second compensation data table.

[0164] In some examples, the first viewing angle is greater than the second viewing angle, and a range of compensation values of the first compensation data table is greater than a range of compensation values of the second compensation data table.

[0165] In some examples, the compensation module 102 is specifically configured to:

[0166] If the current display mode is the display mode corresponding to the first viewing angle, compensation data of the first compensation data table, first initial driving data corresponding to the first viewing angle, and a first compensation gain are obtained, and first compensation data is determined according to the compensation data of the first compensation data table, the first initial driving data, and the first compensation gain, and the display panel is driven by the first compensation data to display in the display mode corresponding to the first viewing angle.

[0167] If the current display mode is the display mode corresponding to the second viewing angle, compensation data of the second compensation data table, second initial driving data corresponding to the second viewing angle, and a second compensation gain are obtained, and second compensation data is determined according to the compensation data of the second compensation data table, the second initial driving data, and the first compensation gain, and the display panel is driven by the second compensation data to display in the display mode corresponding to the second viewing angle.

[0168] In some examples, the compensation module 102 is specifically configured to:

[0169] The first compensation data is determined according to formula (1):

[0170] V11=V10+ΔV1×gain1 (1)

[0171] Wherein, V11 represents the first compensation data, V10 represents the first initial driving data, ΔV1 represents the compensation data corresponding to the first compensation data table, and gain1 represents the first compensation gain.

[0172] The second compensation data is determined according to formula (2):

[0173] V21=V20+ΔV2×gain2 (2)

[0174] Wherein, V21 represents the second compensation data, V20 represents the second initial driving data, ΔV2 represents the compensation data corresponding to the second compensation data table, and gain2 represents the second compensation gain.

[0175] In some examples, the first initial driving data and the second initial driving data are different at the same target brightness.

[0176] In some examples, as the target brightness increases, the first target compensation gain first increases and then decreases.

[0177] As the target brightness increases, the second target compensation gain gradually increases.

[0178] The first target compensation gain is one of the first compensation gain and the second compensation gain, and the second target compensation gain is the other of the first compensation gain and the second compensation gain.

[0179] In some examples, at the first target brightness, the first target compensation gain and the second target compensation gain are equal.

[0180] In some examples, when the target brightness is less than the first target brightness, the first target compensation gain is greater than the second target compensation gain.

[0181] In some examples, when the target brightness is greater than the first target brightness, the first target compensation gain is less than the second target compensation gain.

[0182] In some examples, the display panel includes first-type pixels and second-type pixels, the first-type pixels have a first viewing angle for light emission, and the second-type pixels have a second viewing angle for light emission; the compensation module 102 is specifically configured to:

[0183] If the current display mode is a display mode corresponding to the first viewing angle, first compensation data corresponding to the first-type pixels is determined based on the first compensation data table, and the first-type pixels are driven to emit light by using the first compensation data, so as to compensate for the brightness of the display panel when the display panel displays in the display mode corresponding to the first viewing angle.

[0184] If the current display mode is a display mode corresponding to the second viewing angle, second compensation data corresponding to the second-type pixels is determined based on the second compensation data table, and the second-type pixels are driven to emit light by using the second compensation data, so as to compensate for the brightness of the display panel when the display panel displays in the display mode corresponding to the second viewing angle.

[0185] In some examples, the display panel includes first-type pixels and second-type pixels, the first-type pixels have a first viewing angle for light emission, and the second-type pixels have a second viewing angle for light emission; the compensation module 102 is specifically configured to:

[0186] If the current display mode is a display mode corresponding to the first viewing angle, first compensation data corresponding to the first-type pixels is determined based on the first compensation data table, and the first-type pixels are driven to emit light by using the first compensation data, and third compensation data corresponding to the second-type pixels is determined based on the second compensation data table, and the second-type pixels are driven to emit light by using the third compensation data, so as to compensate for the brightness of the display panel when the display panel displays in the display mode corresponding to the first viewing angle.

[0187] If the current display mode is the display mode corresponding to the second viewing angle, second compensation data corresponding to the second type of pixels is determined based on the second compensation data table, and the second type of pixels is driven to emit light by using the second compensation data, so as to compensate the display panel to display in the display mode corresponding to the second viewing angle.

[0188] In some examples, in the display mode corresponding to the second viewing angle, the initial driving data of the second type of pixels is second initial driving data, and in the display mode corresponding to the first viewing angle, the initial driving data of the second type of pixels is third initial driving data.

[0189] The second initial driving data and the third initial driving data are different at the same target brightness.

[0190] In some examples, in the display mode corresponding to the second viewing angle, the compensation gain of the second type of pixels is a second compensation gain, and in the display mode corresponding to the first viewing angle, the compensation gain of the second type of pixels is a third compensation gain.

[0191] The second compensation gain and the third compensation gain are different at the same target brightness.

[0192] In some examples, the second compensation gain is greater than the third compensation gain at the same target brightness.

[0193] In some examples, as the target brightness increases, the third compensation gain and the change rule are the same as the change rule of the second compensation gain.

[0194] In some examples, the display panel includes the first type of pixels and the second type of pixels, the light-emitting viewing angle of the first type of pixels is the first viewing angle, and the light-emitting viewing angle of the second type of pixels is the second viewing angle.

[0195] The first type of pixels include first type of sub-pixels of multiple light-emitting colors, and the second type of pixels include second type of sub-pixels of multiple light-emitting colors.

[0196] The first compensation data table includes compensation values of the first type of sub-pixels of multiple light-emitting colors corresponding to multiple target brightnesses, respectively.

[0197] The second compensation data table includes compensation values of the second type of sub-pixels of multiple light-emitting colors corresponding to multiple target brightnesses, respectively.

[0198] Based on the same technical concept, the display device provided by the embodiments of the present disclosure includes a display panel, a processor, and a memory storing computer program instructions. When the processor executes the computer program instructions, the display compensation method of the display panel is realized as described in any one of the above embodiments.

[0199] FIG. 14 shows a hardware structure diagram of a display device provided by an embodiment of the present disclosure. It can be understood that the structure shown in FIG. 14 does not include a display panel.

[0200] The display device 800 can include a processor 801 and a memory 802 storing computer program instructions.

[0201] Specifically, the processor 801 described above can include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or can be configured as one or more integrated circuits that implement the embodiments of the present disclosure.

[0202] The memory 802 can include a mass storage for data or instructions. By way of example and not limitation, the memory 802 can include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. Where appropriate, the memory 802 can include removable or non-removable (or fixed) media. Where appropriate, the memory 802 can be internal or external to the integrated gateway disaster recovery device. In a particular embodiment, the memory 802 is non-volatile solid-state memory.

[0203] In a particular embodiment, the memory 802 includes read-only memory (ROM). Where appropriate, this ROM can be mask-programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), electrically alterable ROM (EAROM), or flash memory, or a combination of two or more of these. Illustratively, the memory can include non-volatile, transitory memory.

[0204] The processor 801 implements the display compensation method of any of the display panels described above by reading and executing the computer program instructions stored in the memory 802.

[0205] In one example, the display device 800 can further include a communication interface 803 and a bus 810. As shown in FIG. 8, the processor 801, the memory 802, and the communication interface 803 are connected by the bus 810 and complete communication with each other.

[0206] The communication interface 803 is mainly used to realize the communication between the modules, devices, units and / or equipment in the embodiments of the present disclosure.

[0207] Bus 810 includes a hardware, software, or both, that couples components of the display device to each other. As an example and not by way of limitation, the bus can include an accelerated graphics port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a front-side bus (FSB), a HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an InfiniBand (IB) interconnect, a low pin count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards board (VLB) bus, or another suitable bus or a combination of two or more of these. Where appropriate, bus 810 can include one or more buses. Although this disclosure describes and illustrates a particular bus, this disclosure contemplates any suitable bus or interconnect.

[0208] As an example and not by way of limitation, the display device 800 can be a mobile phone, a tablet computer, a laptop computer, a palmtop computer, a vehicle-mounted display device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), or the like.

[0209] The display device can execute the display compensation method of the display panel in the embodiments of the present disclosure, thereby realizing the display compensation method of the display panel and the driving chip described in combination with FIG. 2 and FIG. 13.

[0210] The embodiments of the present disclosure further provide a computer readable storage medium, and the computer readable storage medium stores a computer program. The computer program is executed by a processor to implement the display compensation method of the display panel in the above embodiments, and the same technical effects can be achieved. To avoid repetition, details are not described herein. The computer readable storage medium can include a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and is not limited herein.

[0211] The embodiments of the present disclosure further provide a computer program product, and the computer program product includes computer program instructions. The computer program instructions are executed by a processor to implement the display compensation method of the display in the above embodiments.

[0212] It is to be expressly understood that the disclosure is not limited to the described and illustrated particular configurations and processes. For the sake of brevity and clarity, detailed descriptions of known methods are omitted. In the above-described embodiments, several specific steps are described and illustrated as examples. However, the method processes of the present disclosure are not limited to the specific steps described and illustrated, and various changes, modifications and additions can be made thereto by one skilled in the art without departing from the spirit of the present disclosure, or changing the scope of the disclosure.

[0213] The functional blocks shown in the above-described block diagrams can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application specific integrated circuits (ASICs), appropriate firmware, plug-ins, functional cards, and the like. When implemented in software, the elements of the present disclosure are program or code segments for performing the required tasks. The program or code segments can be stored in a machine-readable medium or transmitted through a data signal carried in a carrier wave over a transmission medium or communication link. The "computer-readable medium" can include any medium that can store or transport information. Examples of the computer-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency links, and the like. The code segments can be downloaded via a computer network such as the Internet, an intranet, and the like.

[0214] According to embodiments of the present disclosure, the computer-readable storage medium can be a non-transitory computer-readable storage medium.

[0215] It is also to be noted that the exemplary embodiments mentioned in the present disclosure describe some methods or systems based on a series of steps or devices. However, the present disclosure is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiments, or in an order different from the embodiments, or several steps can be performed simultaneously.

[0216] The computer program instructions can also be loaded onto a computer, other programmable data processing apparatus, or other processing device to cause a series of operational steps to be performed on the computer, other programmable apparatus or other processing device to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions / acts specified in the flowchart and / or block diagram block or blocks. Alternatively, computer program implemented steps can be

[0217] In accordance with the embodiments of the disclosure as described above, those embodiments are not described with all details and limitations. It is obvious that many modifications and changes can be made according to the above description. The embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the disclosure, so that those skilled in the art can well utilize the disclosure and make modifications and uses on the basis of the disclosure. The disclosure is limited by the claims and their full scope and equivalents.

Claims

1. A display compensation method of a display panel, comprising: identifying a current display mode of the display panel; if the current display mode is a display mode corresponding to a first viewing angle, compensating luminance of the display panel in the first viewing angle based on a first compensation data table; if the current display mode is a display mode corresponding to a second viewing angle, compensating luminance of the display panel in the second viewing angle based on a second compensation data table.

2. The method of claim 1, wherein, a range of compensation values of the first compensation data table is different from a range of compensation values of the second compensation data table.

3. The method of claim 2, wherein, the first viewing angle is greater than the second viewing angle, and the range of compensation values of the first compensation data table is smaller than the range of compensation values of the second compensation data table.

4. The method of claim 2, wherein, the first viewing angle is greater than the second viewing angle, and the range of compensation values of the first compensation data table is greater than the range of compensation values of the second compensation data table.

5. The method of claim 1, wherein, the if the current display mode is a display mode corresponding to a first viewing angle, compensating luminance of the display panel in the first viewing angle based on a first compensation data table, comprises: if the current display mode is a display mode corresponding to a first viewing angle, obtaining compensation data of the first compensation data table, first initial driving data corresponding to the first viewing angle and a first compensation gain, and determining first compensated data according to the compensation data of the first compensation data table, the first initial driving data and the first compensation gain, and driving the display panel to display in the display mode corresponding to the first viewing angle by using the first compensated data; the if the current display mode is a display mode corresponding to a second viewing angle, compensating luminance of the display panel in the second viewing angle based on a second compensation data table, comprises: if the current display mode is a display mode corresponding to a second viewing angle, obtaining compensation data of the second compensation data table, second initial driving data corresponding to the second viewing angle and a second compensation gain, and determining second compensated data according to the compensation data of the second compensation data table, the second initial driving data and the first compensation gain, and driving the display panel to display in the display mode corresponding to the second viewing angle by using the second compensated data. the determining first compensated data according to the compensation data of the first compensation data table, the first initial driving data and the first compensation gain, comprises:

6. The method of claim 5, wherein, determining the first compensated data according to formula (1): V11=V10+ΔV1×gain1 (1) wherein, V11 represents the first compensated data, V10 represents the first initial driving data, ΔV1 represents compensation data corresponding to the first compensation data table, and gain1 represents the first compensation gain; the determining second compensated data according to the compensation data of the second compensation data table, the second initial driving data and the first compensation gain, comprises: determining the second compensated data according to formula (2): V21=V20+ΔV2×gain2 (2) ​ Wherein, V21 represents the second compensated data, V20 represents the second initial driving data, ΔV2 represents the compensation data corresponding to the second compensation data table, and gain2 represents the second compensation gain.

7. The method of claim 5, wherein, The first initial driving data and the second initial driving data are different under the same target brightness.

8. The method of claim 5, wherein, With the increase of the target brightness, the first target compensation gain first increases and then decreases; With the increase of the target brightness, the second target compensation gain gradually increases. The first target compensation gain is one of the first compensation gain and the second compensation gain, and the second target compensation gain is the other of the first compensation gain and the second compensation gain.

9. The method of claim 5 or 8, wherein, The first target compensation gain and the second target compensation gain are equal under the first target brightness.

10. The method of claim 5 or 8, wherein, In the case that the target brightness is less than the first target brightness, the first target compensation gain is greater than the second target compensation gain.

11. The method of claim 5 or 8, wherein, In the case that the target brightness is greater than the first target brightness, the first target compensation gain is less than the second target compensation gain.

12. The method of claim 1, wherein, The display panel includes first type pixels and second type pixels, the light-emitting viewing angle of the first type pixels is the first viewing angle, and the light-emitting viewing angle of the second type pixels is the second viewing angle. If the current display mode is the display mode corresponding to the first viewing angle, the brightness of the display panel under the first viewing angle is compensated based on the first compensation data table, including: If the current display mode is the display mode corresponding to the first viewing angle, the first compensation data corresponding to the first type pixels is determined based on the first compensation data table, and the first type pixels are driven to emit light by using the first compensation data, so as to compensate the brightness of the display panel displayed in the display mode corresponding to the first viewing angle. If the current display mode is the display mode corresponding to the second viewing angle, the brightness of the display panel under the second viewing angle is compensated based on the second compensation data table, including: If the current display mode is the display mode corresponding to the second viewing angle, the second compensation data corresponding to the second type pixels is determined based on the second compensation data table, and the second type pixels are driven to emit light by using the second compensation data, so as to compensate the brightness of the display panel displayed in the display mode corresponding to the second viewing angle.

13. The method of claim 1, wherein, The display panel includes first type pixels and second type pixels, the light-emitting viewing angle of the first type pixels is the first viewing angle, and the light-emitting viewing angle of the second type pixels is the second viewing angle. If the current display mode is the display mode corresponding to the first viewing angle, the brightness of the display panel under the first viewing angle is compensated based on the first compensation data table, including: if the current display mode is the display mode corresponding to the first viewing angle, determining first compensation data corresponding to the first type of pixels based on a first compensation data table, driving the first type of pixels to emit light by using the first compensation data, and determining third compensation data corresponding to the second type of pixels based on a second compensation data table, driving the second type of pixels to emit light by using the third compensation data, so as to compensate for the luminance of the display panel when displaying in the display mode corresponding to the first viewing angle; if the current display mode is the display mode corresponding to the second viewing angle, compensating for the luminance of the display panel in the second viewing angle based on a second compensation data table, including: if the current display mode is the display mode corresponding to the second viewing angle, determining second compensation data corresponding to the second type of pixels based on a second compensation data table, driving the second type of pixels to emit light by using the second compensation data, so as to compensate for the luminance of the display panel when displaying in the display mode corresponding to the second viewing angle. In the display mode corresponding to the second viewing angle, the initial driving data of the second type of pixels is second initial driving data, and in the display mode corresponding to the first viewing angle, the initial driving data of the second type of pixels is third initial driving data.

14. The method of claim 13, wherein, In the same target luminance, the second initial driving data and the third initial driving data are different. In the display mode corresponding to the second viewing angle, the compensation gain of the second type of pixels is a second compensation gain, and in the display mode corresponding to the first viewing angle, the compensation gain of the second type of pixels is a third compensation gain.

15. The method of claim 13, wherein, In the same target luminance, the second compensation gain and the third compensation gain are different. In the same target luminance, the second compensation gain is greater than the third compensation gain.

16. The method of claim 15, wherein, 17. The method of claim 15, wherein, With the increase of the target luminance, the third compensation gain and the change law are the same as the change law of the second compensation gain. The display panel includes a first type of pixels and a second type of pixels, the light-emitting viewing angle of the first type of pixels is the first viewing angle, and the light-emitting viewing angle of the second type of pixels is the second viewing angle; 18. The method of claim 1, wherein, The first type of pixels include a first type of sub-pixels of multiple light-emitting colors, and the second type of pixels include a second type of sub-pixels of multiple light-emitting colors; The first compensation data table includes compensation values of the first type of sub-pixels of multiple light-emitting colors corresponding to multiple target luminances, respectively; The second compensation data table includes compensation values of the second type of sub-pixels of multiple light-emitting colors corresponding to multiple target luminances, respectively.

19. A driving chip for driving a display panel, comprising: a mode recognition module configured to recognize a current display mode of the display panel; a compensation module configured to, if the current display mode is a display mode corresponding to a first viewing angle, compensate for the luminance of the display panel in the first viewing angle based on a first compensation data table; if the current display mode is a display mode corresponding to a second viewing angle, compensating for the luminance of the display panel in the second viewing angle based on a second compensation data table.

20. A display device, comprising: a display panel; ​ A processor and a memory having stored computer program instructions, the processor implementing the display compensation method of the display panel as claimed in any one of claims 1 to 18 when executing the computer program instructions.

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