Display panel brightness uniform display method and device, electronic equipment and storage medium

Abstract

The invention discloses a display panel brightness uniform display method and device, electronic equipment and a storage medium. The uniform brightness display method of the display panel comprises the steps of obtaining ambient light information of an environment where the display panel is located; adjusting a display parameter of the display panel based on a compensation display parameter corresponding to the ambient light information in a display database; wherein the display database is obtained through the following method: obtaining display data corresponding to various gray level states when a reference display panel is in a screen-on state, and obtaining a corresponding first compensation parameter based on the display data; obtaining reflected light data corresponding to the multiple illumination conditions when the reference display panel is in a screen-off state, and obtaining a corresponding second compensation parameter based on the reflected light data; and obtaining a compensation display parameter based on the first compensation parameter and the second compensation parameter. Through the design, the display brightness difference in the screen body and the brightness difference between the screen bodies are improved, and the splicing seams between the screen bodies are weakened.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a method and device for uniformly displaying brightness of a display panel, an electronic device, and a storage medium. Background Art

[0002] With the further development of display technology, the trend is to pursue large-size and diversified display effects, and display splicing technology has emerged.

[0003] When multiple display screens are spliced ​​together to form a large or extra-large display panel, the display area of ​​the display panel is divided into the body of each display screen and the splicing seams between any two adjacent display screens. Due to inherent defects in the design or process of the display screen body, the problem of local uneven brightness will occur, and the display panel will appear obviously divided into blocks with the splicing seams as the boundary, affecting the user experience. Summary of the Invention

[0004] The method and device for uniformly displaying brightness of a display panel, the electronic device, and the storage medium provided in this application improve the display brightness differences within the screen body and the brightness differences between screen bodies, and weaken the splicing seams between screen bodies.

[0005] In order to solve the above technical problems, the first technical solution provided in the present application is: providing a method for uniform brightness display of a display panel, wherein the display panel includes multiple display screens, and any two adjacent display screens are spliced ​​with each other; the method for uniform brightness display of the display panel includes: obtaining ambient light information of the environment in which the display panel is located; adjusting the display parameters of the display panel based on the compensation display parameters corresponding to the ambient light information in the display database; wherein the display database is obtained by the following method: obtaining display data corresponding to multiple grayscale states of the reference display panel in a bright screen state, and obtaining corresponding first compensation parameters based on the display data; obtaining reflected light data corresponding to multiple lighting conditions of the reference display panel in an off-screen state, and obtaining corresponding second compensation parameters based on the reflected light data; obtaining the compensated display parameters based on the first compensation parameters and the second compensation parameters.

[0006] In one embodiment, the reference display panel includes multiple reference display screens; obtaining reflected light data corresponding to multiple lighting conditions of the reference display panel when the screen is off, and obtaining corresponding second compensation parameters based on the reflected light data specifically include: obtaining reflected light data of each of the reference display screens and reflected light data of a joint between any two adjacent reference display screens corresponding to multiple lighting conditions of the reference display panel when the screen is off; determining the second compensation parameters of each of the reference display screens under each lighting condition based on the reflected light data of each of the reference display screens under each lighting condition and the reflected light data of the joint between any two adjacent reference display screens.

[0007] In one embodiment, the ambient light information includes the brightness and position of the ambient light source; and the lighting condition includes the brightness and position of the light source.

[0008] In one embodiment, the reference display panel includes multiple reference display screens; obtaining display data corresponding to multiple grayscale states of the reference display panel in a bright screen state, and obtaining corresponding first compensation parameters based on the display data specifically includes: obtaining display data of each pixel in each reference display screen corresponding to multiple grayscale states of the reference display panel in a darkroom environment and a bright screen state; determining the first compensation parameters of each reference display screen in each grayscale state based on the display data of each pixel in each reference display screen.

[0009] In one embodiment, obtaining the ambient light information of the environment in which the display panel is located specifically includes: obtaining the ambient light information of the environment in which the display panel is located through a sensing sensor; wherein each display screen is provided with a plurality of sensing sensors.

[0010] In one embodiment, the sensing sensor is a light-sensitive sensor.

[0011] In one embodiment, the display panel and the reference display panel are produced under the same conditions.

[0012] In order to solve the above technical problems, the second technical solution provided by the present application is: to provide a display panel brightness uniform display device, including: an information acquisition unit, an adjustment unit, and a preprocessing unit; the information acquisition unit is used to obtain the ambient light information of the environment in which the display panel is located; the adjustment unit is used to adjust the display parameters of the display panel based on the compensation display parameters corresponding to the ambient light information in the display database; the preprocessing unit is used to obtain the display database; the preprocessing unit includes a first data acquisition unit, a second data acquisition unit, and a data processing unit; the first data acquisition unit is used to obtain the display data corresponding to multiple grayscale states of the reference display panel in the bright screen state, and obtain the corresponding first compensation parameters based on the display data; the second data acquisition unit is used to obtain the reflected light data corresponding to multiple lighting conditions of the reference display panel in the off-screen state, and obtain the corresponding second compensation parameters based on the reflected light data; the data processing unit is used to obtain the compensated display parameters based on the first compensation parameters and the second compensation parameters.

[0013] In order to solve the above technical problems, the third technical solution provided in this application is: to provide an electronic device, including: a memory and a processor, wherein the memory stores program instructions, and the processor calls the program instructions from the memory to execute the brightness uniform display method of the display panel as described in any one of the above items.

[0014] In order to solve the above technical problems, the fourth technical solution provided in this application is: providing a computer-readable storage medium, on which a program file is stored, and when the program file is executed by a processor, a method for uniform brightness display of a display panel as described in any one of the above items is implemented.

[0015] Beneficial effects of the present application: Different from the prior art, the present application discloses a method and device for uniform brightness display of a display panel, an electronic device, and a storage medium; the method for uniform brightness display of a display panel includes: obtaining ambient light information of the environment in which the display panel is located; adjusting the display parameters of the display panel based on the compensation display parameters corresponding to the ambient light information in the display database; wherein the display database is obtained by the following method: obtaining display data corresponding to multiple grayscale states of a reference display panel in a bright screen state, and obtaining corresponding first compensation parameters based on the display data; obtaining reflected light data corresponding to multiple lighting conditions of the reference display panel in an off screen state, and obtaining corresponding second compensation parameters based on the reflected light data; obtaining compensated display parameters based on the first compensation parameters and the second compensation parameters. Compensating by the first compensation parameters uniformly adjusts the brightness differences of pixels within the display screen, uniformizes the brightness differences between display screens, and uniformizes the brightness differences between the splicing seams within the display screen and between the display screens; compensating by the second compensation parameters uniformly adjusts the brightness differences between the display screens, and uniformizes the brightness differences between the splicing seams within the display screen and between the display screens, thereby improving the brightness display uniformity of the entire display panel and weakening the splicing seams. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 is a schematic structural diagram of a display panel provided in an embodiment of the present application;

[0018] Figure 2 1 is a flow chart of a method for uniform brightness display of a display panel provided in an embodiment of the present application;

[0019] Figure 3 is a schematic diagram of a partial structure of a display screen of a display panel provided in an embodiment of the present application;

[0020] Figure 4 1 is a flow chart of a method for obtaining a display database provided in an embodiment of the present application;

[0021] Figure 5 yes Figure 4 The schematic diagram of the principle of step S01 shown;

[0022] Figure 6 yes Figure 4 The schematic diagram of the principle of step S02 shown;

[0023] Figure 7 yes Figure 4 The schematic diagram of the principle of step S03 shown;

[0024] Figure 8 This is a structural diagram of a device for displaying uniform brightness of a display panel provided in one embodiment of the present application;

[0025] Figure 9 is a structural diagram of an electronic device provided in an embodiment of the present application;

[0026] Figure 10 It is a structural diagram of the computer-readable storage medium provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0029] The terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the features. In the description of this application, "multiple" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. The terms "including" and "having" in the embodiments of this application and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0030] References herein to "embodiments" 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 such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are 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.

[0031] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0032] In the display industry, inherent design or process flaws can cause uneven brightness, also known as mura, on displays. De-mura is typically addressed by using a high-definition camera to capture the display's brightness at different grayscale levels in a darkroom. An algorithm then smooths the brightness across pixels, ultimately achieving uniform brightness across the entire display. This process is performed in a darkroom to avoid the influence of external light.

[0033] For LCD (liquid crystal display) and OLED (organic laser display) products, after darkroom de-mura, the screen will have reflected light in addition to self-luminescence. Because the reflectivity of the entire screen is uniform, brightness uniformity can be achieved after de-mura, that is, the above-mentioned de-mura can solve the brightness uniformity problem.

[0034] In spliced ​​screen products, the final display panel is composed of multiple display screens spliced ​​together. The display area is divided into two parts: the screen body and the seams between the screens. This structure is different from LCD and OLED screens. The inventors have found that after the spliced ​​screen products have been de-mura-ed in an existing darkroom and then used under external light, the metal traces inside the screen reflect light, while the seams between the screens do not. In other words, the reflectivity at the seams between the screens is different, resulting in a noticeable block display phenomenon in the spliced ​​screen products. The seams serve as the boundary, affecting the user experience.

[0035] Regarding the problem of uneven display brightness that still exists when spliced ​​screen products are used under external light after passing the existing darkroom de-mura, the existing technology usually adopts the method of reducing the reflectivity within the screen or reducing the width of the splicing seam between screens on the basis of darkroom de-mura. Common methods for reducing the reflectivity within the screen include: (1) using patterned black packaging materials to block the metal traces outside the pixels to reduce reflection; (2) attaching circular polarizers to the surface of light-emitting elements (e.g., LEDs) to block external light from entering and then being reflected through the metal traces, while at the same time losing more than 50% of the light brightness; (3) attaching AR film (anti-reflection film) to the surface of light-emitting elements (e.g., LEDs) to achieve the purpose of reducing reflection after external light enters the AR film through light interference cancellation. Common methods for reducing the width of the joints between screens include: (1) minimizing the width of the joints after splicing by controlling the tolerances of the screen, module, and box body shapes and the tolerances of the assembly process, which is difficult to operate; (2) for COG (Chip on Glass, which refers to directly bonding the LED chip to the glass substrate and then encapsulating it as a whole) direct display splicing screen, by designing the encapsulation layer to extend outward from the edge of the screen glass substrate, the encapsulation layers are butted together during splicing to minimize the width of the joints after splicing.

[0036] The embodiments of the present application provide another method for improving the uneven display of spliced ​​screen products. Specifically, the embodiments of the present application provide a method and device for uniformly displaying the brightness of a display panel, an electronic device, and a computer-readable storage medium, which improve the display brightness differences within the screen body and the brightness differences between screen bodies, weaken the splicing seams between screen bodies, and improve the display brightness uniformity of the entire display panel.

[0037] See also Figures 1 to 6 , Figure 1 is a schematic structural diagram of a display panel provided in an embodiment of the present application, Figure 2 is a flow chart of a method for uniform brightness display of a display panel provided in an embodiment of the present application. Figure 3 is a partial structural diagram of a display screen of a display panel provided in an embodiment of the present application, Figure 4 is a flow chart of a method for obtaining a display database provided in an embodiment of the present application. Figure 5 yes Figure 4 The schematic diagram of the principle of step S01 shown in FIG. Figure 6 yes Figure 4 The schematic diagram of the principle of step S02 shown in FIG. Figure 7 yes Figure 4 The schematic diagram of the principle of step S03 is shown.

[0038] See Figure 1The display panel 1 provided in the embodiment of the present application includes a plurality of display screens 10, wherein any two adjacent display screens 10 are spliced ​​together to form a splicing seam 13. The display screens can be LCD, LED, OLED, etc., and are designed according to specific needs. Among them, the LED can be a conventional LED, a mini-LED, or a mini-LED. The main difference between conventional LED, mini-LED, and mini-LED is their size.

[0039] The method for displaying uniform brightness of a display panel provided in the embodiment of the present application can be used to improve the uneven display brightness of the display panel provided in the embodiment of the present application, that is, it can be used to improve the uneven display brightness of a spliced ​​screen product.

[0040] See Figure 2 The method for displaying uniform brightness of a display panel provided in the embodiment of the present application specifically includes:

[0041] Step S11: Acquire ambient light information of the environment where the display panel is located.

[0042] In one embodiment, the specific method of obtaining the ambient light information of the environment where the display panel is located is to obtain the ambient light information of the environment where the display panel is located by using a sensing sensor. Figure 3 As shown, each display screen 10 of the display panel 1 is provided with a plurality of sensing sensors 11. Optionally, the sensing sensors 11 are arranged to be staggered with respect to the pixels 12 of the display screen 10. Optionally, at least some of the sensing sensors 11 are arranged between two adjacent pixels 12 of the display screen 10. Optionally, the sensing sensors are light sensors capable of sensing ambient light information.

[0043] It should be noted that the sensing sensor 11 is set between two adjacent pixels 12 to reduce the impact on the light emission of the pixels 12. The setting position and number of the sensing sensor 11 are not limited to Figure 3 The method shown can sense ambient light information with minimal interference to the light emission of the pixels 12 . The location and number of the sensing sensors 11 are designed as needed.

[0044] In one embodiment, the ambient light information includes the brightness and position of the ambient light source. The position of the ambient light source can also be understood as the angle at which the ambient light source illuminates the display panel. The ambient light can be indoor ambient light (e.g., a lamp) or outdoor ambient light (sunlight). The sensing sensor 11 can sense the brightness and position of indoor ambient light or outdoor ambient light.

[0045] It should be noted that the brightness of the ambient light source determines the grayscale displayed by the display panel. In various actual lighting usage scenarios, the brightness of the ambient light source is variable, and the position of the ambient light source is also variable. The brightness of the ambient light source affects the reflected light data of the metal traces in the display screen 10 and the reflected light data of the seams 13 between the display screens 10. The position of the ambient light source affects whether the ambient light received by each display screen 10 is uniform and whether the brightness is consistent. Therefore, by sensing the brightness and position of the ambient light source, step S12 is then executed to adjust the display parameters of the display panel 1 to improve the uniformity of the display brightness. When the viewer viewing the display panel 1 is within the visible area of ​​the display panel 1 (the visible area refers to the maximum range in which the image displayed by the display panel 1 can be clearly seen), the display parameters of the display panel 1 are adjusted according to the ambient light information, which significantly improves the uniformity of the display brightness of each part of the display panel 1, weakens the seams 13 between the display screens 10, and improves the viewer's user experience.

[0046] Step S12: adjusting the display parameters of the display panel based on the compensation display parameters corresponding to the ambient light information in the display database.

[0047] Specifically, a display database is obtained in advance. The ambient light information sensed by the display panel 1 is compared with the display database, and compensation display parameters corresponding to the ambient light information are obtained based on the display database. The compensation display parameters are used to adjust the display parameters of the display panel 1, thereby improving the display brightness uniformity of the display panel 1, reducing the splicing seams 13 between the display screens 10, and improving the problem of block display of the spliced ​​screen product under ambient light.

[0048] See Figure 4 , where the display database is obtained by the following method:

[0049] Step S01: acquiring display data corresponding to a plurality of grayscale states of a reference display panel in a bright screen state, and obtaining corresponding first compensation parameters based on the display data.

[0050] Specifically, the reference display panel and display panel 1 are produced under the same conditions, that is, they have the same structure and performance, so that the display compensation parameters derived from the reference display panel, when applied to the display panel, have the same effect, namely, improving display brightness uniformity. Optionally, the reference display panel and display panel 1 are produced in the same batch. It will be understood that the reference display panel includes multiple reference display screens, which are spliced ​​together to form the reference display panel.

[0051] The method for obtaining the first compensation parameter is specifically as follows:

[0052] Step S011: obtaining display data of each pixel in each reference display screen corresponding to a plurality of grayscale states of a reference display panel in a darkroom environment and a bright screen state.

[0053] Specifically, acquiring display data for each pixel within a reference display screen in a darkroom environment can reduce the impact of ambient light on the accuracy of the acquired display data, thereby improving the accuracy of the acquired display data for each pixel within the reference display screen. In one embodiment, the display data for each reference display screen can be acquired using a high-definition camera. Exemplarily, the high-definition camera is a CCD (charge coupled device) camera.

[0054] In one embodiment, each pixel of the reference display panel has 256 grayscale levels, and display data corresponding to each grayscale level may be collected; or display data corresponding to multiple grayscale levels may be selected at intervals from the 256 grayscale levels for collection.

[0055] Step S012: determining a first compensation parameter for each reference display screen in each grayscale state based on display data of each pixel in each reference display screen in each grayscale state.

[0056] See Figure 5 Based on the collected display data of each pixel in each reference display screen at each grayscale state, de-mura is performed on the uneven brightness portion within each reference display screen to uniformize the display brightness within each reference display screen. Based on the collected display data of each pixel in each reference display screen at each grayscale state, combined with the image information of the seam between any two adjacent reference displays and its vicinity, de-mura is performed on the uneven brightness portion between any two adjacent reference displays to uniformize the display brightness differences between the reference displays, and uniformize the display brightness differences within the reference display screen and at the seams between the reference displays.

[0057] It can be understood that the first compensation parameters are formed by performing de-mura on the uneven portions within and between the reference display screens. By repeating the above adjustment process for the display brightness of the reference display panel in different grayscale states, the first compensation parameters corresponding to each reference display screen in various grayscale states are obtained.

[0058] Each reference display screen has a one-to-one correspondence with its corresponding first compensation parameter. Compensating each display screen 10 of display panel 1 using the corresponding first compensation parameter can improve brightness variations within and between display screens 10, reduce seams 13 between display screens 10, and address the issue of fragmented display on display panel 1, achieving uniform brightness across display panel 1.

[0059] The first compensation parameter obtained based on the display data of the reference display panel collected in a darkroom environment ignores the influence of ambient light on the display brightness of the reference display panel; using the first compensation parameter for compensation can eliminate the display unevenness problem caused by the display parameter setting of the display panel 1.

[0060] In one specific embodiment, display data for each reference display screen corresponding to grayscales of 10, 50, 100, 150, 200, and 255 is obtained for a reference display panel in a darkroom environment and in a bright screen state. Based on the display data for each reference display screen corresponding to grayscale 10, de-mura is performed within each reference display screen, as well as between adjacent reference display screens, to obtain first compensation parameters for each reference display screen at grayscale 10. This process is repeated to obtain first compensation parameters for each reference display screen at each grayscale.

[0061] Step S02: Obtain reflected light data corresponding to various lighting conditions of the reference display panel when the screen is off, and obtain corresponding second compensation parameters based on the reflected light data.

[0062] Specifically, it includes:

[0063] Step S021: Obtaining the reflected light data of each reference display screen and the reflected light data of the joint between any two adjacent reference display screens corresponding to a variety of lighting conditions when the reference display panel is in an off-screen state.

[0064] In one embodiment, when the screen is off, a high-definition camera can be used to collect reflected light data corresponding to each reference display panel under each lighting condition. The reflected light data corresponding to each lighting condition includes reflected light data from each reference display panel and reflected light data from the seams between reference display panels. Exemplarily, the high-definition camera is a CCD (charge coupled device) camera.

[0065] In one embodiment, the lighting conditions include the brightness and position of the light source. The brightness of the light source can be a light source brightness commonly used in display panel usage scenarios. The position of the light source can be such that the light source is directly facing the reference display panel, or the light source is located to the side of the reference display panel, etc. Various lighting conditions include, but are not limited to, sunlight at different times, lights of different brightnesses, and different relative positions of lights and the reference display panel. Sunlight at different times can reflect different sunlight brightnesses and different relative positions of sunlight and the reference display panel. The brightness and position of the light source are sensed by a sensing sensor integrated on the reference display panel.

[0066] It can be understood that with different brightness of light sources, the metal traces within the reference display screen may have different reflected light data, and the joints between reference display screens may have different reflected light data. The light sources are in different positions, and the uniformity and brightness of the ambient light received by each reference display screen may be different. In order to match various actual ambient light illumination scenarios, it is necessary to collect the reflected light data corresponding to the different brightness and positions of the light source to obtain the second compensation parameters corresponding to the different brightness and positions of the light source.

[0067] Step S022: determining a second compensation parameter for each reference display screen under each lighting condition based on the reflected light data of each reference display screen under each lighting condition and the reflected light data of a joint between any two adjacent reference display screens.

[0068] See Figure 6 De-mura is performed based on the collected reflected light data of each reference display screen under each lighting condition and the reflected light data of the seam between any two adjacent reference displays. This reduces the difference in reflected light between the reference displays, as well as the difference in reflected light within a reference display screen and between the seams between the reference displays. This also equalizes the display brightness difference between the reference displays and the display brightness difference within a reference display screen and between the reference displays.

[0069] It can be understood that de-mura is performed based on the reflected light data of each reference display screen under each lighting condition and the reflected light data of the seam between any two adjacent reference display screens to form the second compensation parameters. By repeating the above adjustment process for the display brightness of the reference display panel under different lighting conditions, the first compensation parameters corresponding to each reference display screen under different lighting conditions are obtained.

[0070] Each reference display screen has a one-to-one correspondence with its corresponding second compensation parameter. Using the second compensation parameter for compensation can eliminate the uneven display problem caused by the different reflected light from the metal traces of each display screen 10 of the display panel 1, and the different reflected light from the metal traces within the display screen 10 and the reflected light from the seams 13 between the display screens 10. After each display screen 10 of the display panel 1 is compensated using the corresponding second compensation parameter, the display brightness difference within the display screen 10 can be improved, the display brightness difference between the display screens 10 can be improved, the seams 13 between the display screens 10 can be weakened, the problem of block display of the display panel 1 can be improved, and the uniformity of the brightness display of the display panel 1 can be achieved.

[0071] In one specific embodiment, the various lighting conditions include, but are not limited to, sunlight at different times, lights of varying brightness, and different relative positions of lights to the reference display panel. Based on the reflected light data of each reference display screen corresponding to the sunlight at a specific time, as well as the reflected light data of the seam between any two adjacent reference display screens, a de-mura analysis is performed within each reference display screen, as well as between adjacent reference display screens, to obtain second compensation parameters for each reference display screen at the specific sunlight time. This process is repeated to obtain the second compensation parameters for each reference display screen under each lighting condition.

[0072] Step S03: obtaining a compensation display parameter based on the first compensation parameter and the second compensation parameter.

[0073] Specifically, see Figure 7 , combining the first compensation parameter and the second compensation parameter to obtain the compensated display parameter. In other words, the compensated display parameter is obtained by combining the first compensation parameter obtained by De-mura in the darkroom in the bright screen state and the second compensation parameter obtained by De-mura in the off screen state with illumination. It can be understood that the reference display panel corresponds to different first compensation parameters under different grayscales; the reference display panel corresponds to different second compensation parameters under different lighting conditions; and there are multiple compensated display parameters obtained based on the first compensation parameter and the second compensation parameter. Different compensation display parameters correspond to different ambient light conditions and can match various actual lighting usage scenarios.

[0074] After the display panel 1 is compensated using the compensation display parameters, the display brightness difference within the display screen 10 can be improved, the display brightness difference between the display screens 10 can be improved, the splicing seams 13 between the display screens 10 can be weakened, the problem of block display of the display panel 1 can be improved, and the uniformity of the brightness display of the display panel 1 can be achieved.

[0075] The embodiment of the present application provides a method for uniformly displaying brightness of a display panel, which combines a first compensation parameter obtained by De-mura in a darkroom in a bright screen state and a second compensation parameter obtained by De-mura in a light-off screen state to form a compensation display parameter; under different grayscale and / or lighting conditions, corresponding different compensation display parameters form a display database; the ambient light information is sensed by the sensing sensor 11 integrated on the display panel 1, and the ambient light information is compared with the display database, and the corresponding compensation display parameter is selected to compensate the display panel 1, thereby improving the problem of uneven brightness of the display panel 1, especially being able to improve the brightness difference between the splicing seams 13 within the display screen 10 and between the display screens 10 under ambient light illumination.

[0076] See also Figure 8 , Figure 81 is a structural diagram of a display panel brightness uniformity display device provided in one embodiment of the present application.

[0077] The display panel brightness uniformity display device includes an information acquisition unit 21, an adjustment unit 22 and a pre-processing unit 23. The information acquisition unit 21 is used to obtain the ambient light information of the environment in which the display panel is located. The adjustment unit 22 is used to adjust the display parameters of the display panel based on the compensation display parameters corresponding to the ambient light information in the display database. The pre-processing unit 23 is used to obtain the display database; the pre-processing unit 233 includes a first data acquisition unit 231, a second data acquisition unit 232, and a data processing unit 233; the first data acquisition unit 231 is used to obtain the display data corresponding to multiple grayscale states of the reference display panel in the bright screen state, and obtain the corresponding first compensation parameters based on the display data; the second data acquisition unit 232 is used to obtain the reflected light data corresponding to multiple lighting conditions of the reference display panel in the off-screen state, and obtain the corresponding second compensation parameters based on the reflected light data; the data processing unit 233 is used to obtain the compensated display parameters based on the first compensation parameters and the second compensation parameters.

[0078] It should be noted that the display panel brightness uniformity display device provided in the embodiment of the present application can be used to implement the display panel brightness uniformity display method provided in the embodiment of the present application to achieve similar technical effects, which will not be repeated here.

[0079] See also Figure 9 , Figure 9 It is a structural diagram of an electronic device provided in an embodiment of the present application.

[0080] The electronic device includes a memory 31 and a processor 32. The memory 31 and the processor 32 are interconnected. The memory 31 is used to store program instructions for implementing the method for uniform brightness display of a display panel according to the above embodiment. The processor 32 is used to execute the program instructions stored in the memory 31; that is, the processor 32 retrieves the program instructions stored in the memory 31 from the memory 31 to execute the method for uniform brightness display of a display panel according to the above embodiment.

[0081] The processor 32 may also be referred to as a CPU (Central Processing Unit). The processor 32 may be an integrated circuit chip having signal processing capabilities. The processor 32 may also be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The general-purpose processor may be a microprocessor or any conventional processor.

[0082] The memory 31 can be a memory stick, a TF card, etc., which can store all the information in the electronic device of the device, including the input raw data, computer programs, intermediate operation results and final operation results are all stored in the memory. It stores and retrieves information according to the location specified by the controller. With the memory 31, the electronic device has a memory function and can ensure normal operation. The memory 31 of the electronic device can be divided into main memory (internal memory) and auxiliary memory (external memory) according to its purpose, and there is also a classification method of dividing it into external memory and internal memory. External memory is usually a magnetic medium or an optical disk, etc., which can store information for a long time. Memory refers to the storage component on the motherboard, which is used to store the data and programs currently being executed, but is only used to temporarily store programs and data. If the power is turned off or the power is cut off, the data will be lost.

[0083] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device implementation methods described above are only schematic. For example, the division of modules or units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0084] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0085] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0086] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, system server, or network device, etc.) or a processor to execute all or part of the steps of the various embodiments of the present application.

[0087] See also Figure 10 , Figure 10 : is a structural diagram of a computer-readable storage medium provided in an embodiment of the present application. The computer-readable storage medium of the present application stores a program file 40 that can implement the display panel brightness uniform display method of the above embodiment when executed by a processor, wherein the program file 40 can be stored in the above storage medium in the form of a software product, including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to execute all or part of the steps of the various implementation methods of the present application. The aforementioned storage device includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, or terminal devices such as a computer, a server, a mobile phone, and a tablet.

[0088] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for uniform brightness display of a display panel, wherein the display panel comprises a plurality of display screens, and any two adjacent display screens are spliced ​​together; characterized in that: include: Acquiring ambient light information of an environment where the display panel is located; adjusting display parameters of the display panel based on compensation display parameters corresponding to the ambient light information in a display database; The display database is obtained by the following method: Acquire display data corresponding to a plurality of grayscale states of a reference display panel in a bright screen state, and obtain corresponding first compensation parameters based on the display data; Obtaining reflected light data corresponding to a plurality of lighting conditions of the reference display panel in an off-screen state, and obtaining corresponding second compensation parameters based on the reflected light data; The compensated display parameter is obtained based on the first compensation parameter and the second compensation parameter.

2. The method for displaying uniform brightness of a display panel according to claim 1, wherein: The reference display panel includes a plurality of reference display screens; The obtaining of reflected light data corresponding to a plurality of illumination conditions of the reference display panel in the off-screen state, and obtaining corresponding second compensation parameters based on the reflected light data specifically includes: Acquire reflected light data of each reference display screen and reflected light data of a joint between any two adjacent reference display screens corresponding to a plurality of lighting conditions when the reference display panel is in an off-screen state; The second compensation parameter of each reference display screen under each illumination condition is determined based on the reflected light data of each reference display screen under each illumination condition and the reflected light data of a joint between any two adjacent reference display screens.

3. The method for displaying uniform brightness of a display panel according to claim 2, wherein: The ambient light information includes the brightness and position of the ambient light source; and the lighting condition includes the brightness and position of the light source.

4. The method for displaying uniform brightness of a display panel according to claim 1, wherein: The reference display panel includes a plurality of reference display screens; The acquiring display data corresponding to the plurality of grayscale states of the reference display panel in the bright screen state, and obtaining the corresponding first compensation parameter based on the display data specifically includes: Obtaining display data of each pixel in each reference display screen corresponding to a plurality of grayscale states of the reference display panel in a darkroom environment and a bright screen state; The first compensation parameter of each reference display screen in each gray state is determined based on the display data of each pixel in each reference display screen in each gray state.

5. The method for displaying uniform brightness of a display panel according to any one of claims 1 to 4, characterized in that: The acquiring of ambient light information of the environment in which the display panel is located specifically includes: Acquiring ambient light information of an environment where the display panel is located by a sensing sensor; Wherein, each of the display screens is provided with a plurality of the sensing sensors.

6. The method for displaying uniform brightness of a display panel according to claim 5, wherein: The sensing sensor is a light-sensitive sensor.

7. The method for displaying uniform brightness of a display panel according to claim 1, wherein: The display panel and the reference display panel are produced under the same conditions.

8. A display device with uniform brightness of a display panel, characterized in that: include: An information acquisition unit, configured to acquire ambient light information of an environment in which the display panel is located; an adjusting unit, configured to adjust display parameters of the display panel based on the compensation display parameters corresponding to the ambient light information in a display database; A preprocessing unit, configured to obtain the display database; The pre-processing unit includes a first data acquisition unit, a second data acquisition unit, and a data processing unit; The first data acquisition unit is used to obtain display data corresponding to multiple grayscale states of the reference display panel when the screen is on, and obtain corresponding first compensation parameters based on the display data; the second data acquisition unit is used to obtain reflected light data corresponding to multiple lighting conditions of the reference display panel when the screen is off, and obtain corresponding second compensation parameters based on the reflected light data; the data processing unit is used to obtain the compensated display parameters based on the first compensation parameters and the second compensation parameters.

9. An electronic device, characterized in that: include: A memory and a processor, wherein the memory stores program instructions, and the processor retrieves the program instructions from the memory to execute the brightness uniform display method of a display panel according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a program file, and when the program file is executed by a processor, the method for uniform brightness display of a display panel according to any one of claims 1 to 7 is implemented.

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