Display module, display method, controller, storage medium, and display system

Abstract

The application relates to the technical field of screen display, in particular to a display module, a display method, a controller, a storage medium and a display system, and aims to solve the problem of how to effectively match backlight partition and display partition and improve display effect. In order to achieve the above purpose, the display module comprises a backlight module and a display panel, the light-emitting area of the backlight module and the display area of the display panel have the same size, and the size of the display area is configured to be greater than the nominal resolution of the display panel. When assembling the backlight module and the display panel, the assembly deviation between the backlight module and the display panel is obtained, the pixels that need to be closed in the actual resolution corresponding to the display panel are determined according to the assembly deviation, and the pixels that need to be closed are disabled, so that the pixels that are not closed in the actual resolution corresponding to the display panel provide the nominal resolution, and the backlight module and the display panel can be effectively matched.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display module, display method, controller, storage medium, and display system. Background Technology

[0002] When designing the backlight units (BLU) of an MLED (Mini LED) display, it is often necessary to match the display resolution. For example, if the display resolution is 500*200, the backlight zones can be designed as 50*20 or 10*4, etc., meaning the number of rows and columns of the zones is an approximation of the display resolution. This makes the display algorithm processing easier.

[0003] However, during the actual assembly of the display panels and display devices, there are often alignment tolerances in the MLED backlight assembly, and similar alignment tolerances exist when assembling the display panel and backlight. Even though there is an integer division relationship between resolution and backlight partitions, perfect matching cannot be achieved during actual alignment. Furthermore, the alignment tolerance is generally between 0.2mm and 0.5mm (the alignment accuracy varies depending on the size). This results in inaccurate alignment between the actual partitions and the designed display image. Due to alignment deviations, the actual displayed image deviates from the corresponding partitions, leading to inconsistent display effects.

[0004] Accordingly, there is a need in the field for a new display solution to address the aforementioned problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects, this application is proposed to solve, or at least partially solve, the problem of how to effectively match the backlight partitions and display partitions to improve the display effect.

[0006] In a first aspect, a display module is provided, comprising:

[0007] A backlight module includes a light-emitting area and a light-shielding area surrounding the light-emitting area;

[0008] A display panel includes a display area and a peripheral area surrounding the display area.

[0009] The light-emitting area and the display area are the same size, and the size of the display area is configured such that the actual resolution is greater than the nominal resolution of the display panel.

[0010] In one technical solution of the above display module, the actual resolution includes the actual horizontal resolution and the actual vertical resolution;

[0011] The nominal resolution includes the nominal horizontal resolution and the nominal vertical resolution.

[0012] Wherein, the actual horizontal resolution is greater than the nominal horizontal resolution, and the actual vertical resolution is greater than the nominal vertical resolution.

[0013] In a second aspect, a display method is provided, the method being applied to a display module according to any one of claims 1 to 2;

[0014] The method includes:

[0015] Obtain the assembly deviation between the backlight module and the display panel;

[0016] Based on the assembly deviation, determine the pixels that need to be turned off in the pixels corresponding to the actual resolution of the display panel;

[0017] Disable the pixels that need to be turned off so that the undisabled pixels in the actual resolution provide the nominal resolution.

[0018] In one technical solution of the above display method, obtaining the assembly deviation between the backlight module and the display panel includes:

[0019] The backlight module and the display panel are assembled to obtain the assembly result;

[0020] The assembly result is compared with the theoretical assembly result to obtain the assembly deviation;

[0021] The theoretical assembly result is the assembly result where the assembly deviation between the backlight module and the display panel is zero.

[0022] In one technical solution of the above display method, comparing the assembly result with the theoretical assembly result to obtain the assembly deviation includes:

[0023] After assembling the backlight module and the display panel, the preset zones of the backlight module are illuminated.

[0024] The assembly deviation is obtained by comparing the assembly result of the preset partition with the theoretical assembly result of the preset partition.

[0025] In one technical solution of the above display method, determining the pixels that need to be turned off in the design resolution of the display panel based on the assembly deviation includes:

[0026] Based on the assembly deviation and the pixel size of the display panel, determine the number of pixels that need to be turned off;

[0027] Based on the number of pixels, determine the pixels that need to be turned off.

[0028] In one technical solution of the above display method, disabling the pixels that need to be turned off includes:

[0029] The pixels that need to be turned off can be disabled via the display panel.

[0030] In a third aspect, a controller is provided, the controller including at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program, which, when executed by the at least one processor, implements the method described in any of the above-described display methods.

[0031] In a fourth aspect, a computer-readable storage medium is provided, wherein a plurality of program codes are stored therein, the program codes being adapted to be loaded and run by a processor to perform the method described in any of the above-described display methods.

[0032] In a fifth aspect, a display system is provided, the display system comprising a display module as described in any of the above-described display module technical solutions and a controller as described in the above-described controller technical solutions.

[0033] The above-described technical solutions of this application have at least one or more of the following beneficial effects:

[0034] In implementing the process management method provided in this application, the display module includes a backlight module and a display panel. The light-emitting area of ​​the backlight module and the display area of ​​the display panel are the same size, and the size of the display area is configured such that the actual resolution is greater than the nominal resolution of the display panel. During the assembly of the backlight module and the display panel, the assembly deviation between the backlight module and the display panel is obtained. Based on the assembly deviation, the pixels that need to be turned off in the pixels corresponding to the actual resolution of the display panel are determined and disabled, so that the pixels that are not turned off in the pixels corresponding to the actual resolution provide the nominal resolution. Through the above configuration method, this application can disable some pixels in the display panel according to the assembly deviation. Under the premise of ensuring that the display panel can provide the nominal resolution, it can effectively match the backlight module and the display panel, effectively solving the problem of the assembly deviation between the backlight module and the display panel affecting the display effect. Attached Figure Description

[0035] The disclosure of this application will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. Wherein:

[0036] Figure 1 This is a schematic diagram of the main components of a display module in the prior art;

[0037] Figure 2 This is a schematic diagram comparing the existing technology of backlight modules and display panels with and without assembly deviations.

[0038] Figure 3 A schematic diagram of the main components of a display module according to an embodiment of this application;

[0039] Figure 4 This is a schematic diagram illustrating the dimensional relationship between the backlight module and the display panel in the prior art;

[0040] Figure 5 This is a schematic flowchart of the main steps of a display method according to an embodiment of this application;

[0041] Figure 6 This is a schematic diagram illustrating the alignment relationship between the backlight module and the display panel during an ideal matching process and the presence of assembly deviations according to an embodiment of this application. Detailed Implementation

[0042] Some embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application.

[0043] In the description of this application, "module" and "processor" can include hardware, software, or a combination of both. A module can include hardware circuitry, various suitable sensors, communication ports, memory, and can also include software components, such as program code, or a combination of software and hardware. A processor can be a central processing unit, microprocessor, image processor, digital signal processor, or any other suitable processor. The processor has data and / or signal processing capabilities. The processor can be implemented in software, in hardware, or a combination of both. Computer-readable storage media includes any suitable medium capable of storing program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, etc. The term "A and / or B" means all possible combinations of A and B, such as only A, only B, or A and B. The terms "at least one A or B" or "at least one of A and B" have a similar meaning to "A and / or B" and can include only A, only B, or A and B. The singular terms "a" or "this" can also include plural forms.

[0044] In existing technologies, such as Figure 1 As shown, during the assembly and alignment of the backlight module and the display panel, there is often a situation where the backlight module and the display panel are not perfectly aligned, that is, there is an assembly deviation. Combined with... Figure 4In existing technologies, backlight modules are often designed with an emitting area larger than the display area of ​​the display panel. For example, the emitting area (VA area) might be 1940*1100 pixels, while the display area (AA area) might be 1920*1080 pixels (assuming the emitting and display areas have the same pixel size). This is to prevent assembly deviations during the assembly process from causing some pixels in the display area to not emit light. Figure 4 As shown, taking the horizontal direction as an example, the horizontal dimension of the display area (AA area) of the display panel is x, and the horizontal dimension of the light-emitting area (VA area) of the backlight module is x + Δ. In the actual assembly (actual matching) process, the single-sided difference between the display area and the light-emitting area is Δ / 2. The design of this difference mainly considers factors such as assembly and material expansion to ensure that all pixels in the display area can be displayed normally. However, in this case, deviations during assembly are still unavoidable. Please refer to the appendix for details. Figure 2 ,like Figure 2 As shown, Figure 2 The left side shows the display effect without assembly deviation, while the right side shows the display effect with assembly deviation. From Figure 2 As can be seen on the right, there will be abnormal display situations when there is a display deviation.

[0045] Therefore, a new display solution is needed in this field to solve the above problems.

[0046] See appendix Figure 3 , Figure 3 A schematic diagram of the main components of a display module according to an embodiment of this application. (See diagram below.) Figure 3 As shown, the display module in this embodiment includes a backlight module and a display panel. The backlight module includes a light-emitting area and a light-shielding area surrounding the light-emitting area; the display panel includes a display area and a peripheral area surrounding the display area. The light-emitting area and the display area are of the same size; the size of the display area is configured such that its actual resolution is greater than the nominal resolution of the display panel.

[0047] In one implementation, the actual resolution includes the actual horizontal resolution and the actual vertical resolution; the nominal resolution includes the nominal horizontal resolution and the nominal vertical resolution, wherein the actual horizontal resolution is greater than the nominal horizontal resolution, and the actual vertical resolution is greater than the nominal vertical resolution.

[0048] In one example, such as Figure 3As shown, the dimensions of the display area (AA area) and the luminous area (VA area) are the dimensions corresponding to a resolution of 1940*1100. The actual resolution of the display panel is 1940*1100, and the nominal resolution is 1920*1080. The nominal resolution is the product resolution provided by the display panel, i.e., the resolution required for the display to show the image. The actual resolution is the maximum resolution that the display panel can provide. Since the actual resolution is greater than the nominal resolution, during actual display, the display panel will disable some pixels at the actual resolution to achieve the display image at the nominal resolution.

[0049] Furthermore, this application also provides a display method.

[0050] See appendix Figure 5 , Figure 5 This is a schematic flowchart illustrating the main steps of a display method according to an embodiment of this application. Figure 5 As shown, the display method is applied to the display module in a certain embodiment of the above display. The display method mainly includes the following steps S101 to S103.

[0051] Step S101: Obtain the assembly deviation between the backlight module and the display panel.

[0052] In this embodiment, the assembly deviation between the backlight module and the display panel can be obtained.

[0053] In one embodiment, step S101 may further include steps S1011 and S1012.

[0054] Step S1011: Assemble the backlight module and the display panel to obtain the assembly result.

[0055] In this embodiment, the backlight module and the display panel can be assembled to obtain the assembly result.

[0056] Step S1012: Compare the assembly result with the theoretical assembly result to obtain the assembly deviation; wherein, the theoretical assembly result is the assembly result in which the assembly deviation of the backlight module and the display panel is zero.

[0057] In this embodiment, the assembly result can be compared with the theoretical assembly result to obtain the assembly deviation.

[0058] Specifically, before assembling the display panel and backlight module, a theoretical assembly result can be detected and obtained. The assembled result with zero deviation (i.e., the assembled backlight module and display panel) can be fixed in a first position, and a camera can be fixed in a second position, with the camera and the assembly result positioned relative to each other. The camera captures an image of the assembly result after the backlight module's light-emitting area is illuminated, serving as the theoretical assembly result. During the process of obtaining assembly deviation, the assembled display panel and backlight module are also fixed in the first position, and the camera fixed in the second position takes an image of the assembly result after the light-emitting area is illuminated. The photographed assembly result is compared with the theoretical assembly result to obtain the assembly deviation. For example, the coordinate difference between preset detection points, preset images, or preset lines in the theoretical assembly result and the actual photographed assembly result can be compared as the assembly deviation.

[0059] In one example, if the preset detection point is the detection point at the lower left corner of the screen after it is lit, the difference between the coordinates of this detection point in the theoretical assembly result and the actual assembly result can be calculated to obtain the assembly deviation.

[0060] If assembly deviations are obtained based on preset images or preset lines, point sampling can be performed on the preset images or preset lines. The assembly deviation is obtained based on the average of the coordinate differences between corresponding points obtained from the sampling.

[0061] In one embodiment, after assembling the backlight module and the display panel, a preset zone of the backlight module can be illuminated. The assembly result of the preset zone is compared with the theoretical assembly result of the preset zone to obtain the assembly deviation. For example, the assembled result with zero assembly deviation is fixed in a first position, and a camera is fixed in a second position, with the camera and the assembly result set relative to each other. After the preset zone is illuminated, the camera takes an image of the assembly result as the theoretical assembly result of the preset zone. During the process of obtaining the assembly deviation, the assembled result of the display panel and the backlight module is also fixed in the first position, and the preset zone is illuminated. The camera fixed in the second position takes a picture of the assembly result after the preset zone is illuminated. The pictured assembly result is compared with the theoretical assembly result to obtain the assembly deviation. For example, the coordinate difference between preset detection points, preset images, or preset lines in the theoretical assembly result and the actual photographed assembly result can be compared as the assembly deviation. In this embodiment, the specific process of obtaining the assembly deviation is similar to that in the previous embodiment, and will not be described in detail here for simplicity.

[0062] Step S102: Based on the assembly deviation, determine the pixels that need to be turned off in the pixels corresponding to the actual resolution of the display panel.

[0063] In this embodiment, the pixels that need to be turned off in the display panel can be determined based on the assembly deviation.

[0064] In one embodiment, step S102 may further include steps S1021 and S1022:

[0065] Step S1021: Determine the number of pixels that need to be turned off based on the assembly deviation and the pixel size of the display panel.

[0066] Step S1022: Determine which pixels need to be turned off based on the number of pixels.

[0067] In this embodiment, the number of pixels that need to be turned off in the display area can be determined based on the assembly deviation and the pixel size of the display panel, and the number of pixels that need to be turned off can be determined based on the number of pixels that need to be turned off.

[0068] Please refer to the appendix. Figure 6 , Figure 6 This is a schematic diagram illustrating the alignment relationship between the backlight module and the display panel during an ideal matching process and with assembly deviations, according to one embodiment of this application. Figure 6 As shown in the image above, the actual resolution of the display area is 1940*1100, while the nominal resolution is 1920*1080. Taking the landscape orientation as an example, when the backlight module and the display panel are perfectly matched (i.e., the assembly deviation is zero), the first 10 rows and the last 10 rows of the display area need to be turned off. In other words, the nominal resolution uses pixels from rows 11 to 1930 of the actual resolution used when displaying the image, thus providing a horizontal nominal resolution of 1920.

[0069] During the actual assembly process of the backlight module and display panel, such as Figure 6 As shown in the image below, if the assembly deviation is 0.3mm and the pixel size of the display area is 0.03mm, then the number of pixels that need to be turned off can be determined to be 0.3 / 0.03 = 10 pixels based on the assembly deviation and pixel size. Taking a horizontal orientation as an example, in this case, the first row of the display partition can be displayed, and the last 20 rows of pixels can be turned off. That is, the pixels from the first row to the 1930th row in the actual resolution are used to display the image, thereby providing a horizontal nominal resolution of 1920.

[0070] Step S103: Disable the pixels that need to be turned off so that the pixels that are not turned off in the actual resolution provide the nominal resolution.

[0071] In this embodiment, pixels that need to be turned off can be disabled, thereby providing the nominal resolution for the disabled pixels in the pixels corresponding to the actual resolution.

[0072] In one implementation, disabling pixels that need to be turned off can be achieved through a control unit in the display panel. The control unit can be a controller, TCON (timing control circuit, logic board), or similar device in the display panel.

[0073] Based on the methods described in steps S101 to S103 above, the display module of this application embodiment includes a backlight module and a display panel. The light-emitting area of ​​the backlight module and the display area of ​​the display panel have the same size, and the size of the display area is configured such that the actual resolution is greater than the nominal resolution of the display panel. During the assembly of the backlight module and the display panel, the assembly deviation between the backlight module and the display panel is obtained. Based on the assembly deviation, the pixels that need to be turned off in the pixels corresponding to the actual resolution of the display panel are determined and disabled, so that the pixels that are not turned off in the pixels corresponding to the actual resolution provide the nominal resolution. Through the above configuration method, this application embodiment can disable some pixels in the display panel according to the assembly deviation. Under the premise of ensuring that the display panel can provide the nominal resolution, the backlight module and the display panel can be effectively matched, effectively solving the problem that the assembly deviation between the backlight module and the display panel affects the display effect.

[0074] It should be noted that although the steps in the above embodiments are described in a specific order, those skilled in the art will understand that in order to achieve the effect of this application, different steps do not necessarily have to be executed in such an order. They can be executed simultaneously (in parallel) or in other orders. These adjusted solutions are equivalent to the technical solutions described in this application and therefore will also fall within the protection scope of this application.

[0075] Those skilled in the art will understand that all or part of the processes in the method of the above-described embodiment can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable storage medium can include any entity or device capable of carrying the computer program code, a medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory, a random access memory, an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc.

[0076] Furthermore, another aspect of this application provides a computer-readable storage medium.

[0077] In one embodiment of a computer-readable storage medium according to this application, the computer-readable storage medium can be configured to store a program that performs the display method of the above-described method embodiments. This program can be loaded and run by a processor to implement the above-described display method. For ease of explanation, only the parts related to the embodiments of this application are shown; for specific technical details not disclosed, please refer to the method section of the embodiments of this application. The computer-readable storage medium can be a storage device comprising various electronic devices. Optionally, in the embodiments of this application, the computer-readable storage medium is a non-transitory computer-readable storage medium.

[0078] Furthermore, another aspect of this application provides a controller.

[0079] In one embodiment of a controller according to this application, the controller may include at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program that, when executed by the at least one processor, implements the method described in any of the above embodiments.

[0080] Furthermore, another aspect of this application provides a display system.

[0081] In one embodiment of a display system according to this application, the display system may include the display module in the above-described display module embodiment and the controller in the above-described controller embodiment.

[0082] The technical solution of this application has been described above with reference to one embodiment shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A display method, characterized in that, The method is applied to a display module, the display module comprising: A backlight module includes a light-emitting area and a light-shielding area surrounding the light-emitting area; A display panel includes a display area and a peripheral area surrounding the display area. The light-emitting area and the display area are the same size, and the size of the display area is configured such that the actual resolution is greater than the nominal resolution of the display panel; The method includes: Obtain the assembly deviation between the backlight module and the display panel; Based on the assembly deviation, determine the pixels that need to be turned off in the pixels corresponding to the actual resolution of the display panel; Disable the pixels that need to be turned off so that the undisabled pixels in the actual resolution provide the nominal resolution.

2. The display method according to claim 1, characterized in that, The step of obtaining the assembly deviation between the backlight module and the display panel includes: The backlight module and the display panel are assembled to obtain the assembly result; The assembly result is compared with the theoretical assembly result to obtain the assembly deviation; The theoretical assembly result is the assembly result where the assembly deviation between the backlight module and the display panel is zero.

3. The display method according to claim 2, characterized in that, The step of comparing the assembly result with the theoretical assembly result to obtain the assembly deviation includes: After assembling the backlight module and the display panel, the preset zones of the backlight module are illuminated. The assembly deviation is obtained by comparing the assembly result of the preset partition with the theoretical assembly result of the preset partition.

4. The display method according to claim 1, characterized in that, The step of determining which pixels in the design resolution of the display panel need to be turned off based on the assembly deviation includes: Based on the assembly deviation and the pixel size of the display panel, determine the number of pixels that need to be turned off; Based on the number of pixels, determine the pixels that need to be turned off.

5. The display method according to claim 1 or 3, characterized in that, Disabling the pixels that need to be turned off includes: The pixels that need to be turned off can be disabled via the display panel.

6. The display method according to any one of claims 1 to 4, characterized in that, The actual resolution includes the actual horizontal resolution and the actual vertical resolution; The nominal resolution includes the nominal horizontal resolution and the nominal vertical resolution; Wherein, the actual horizontal resolution is greater than the nominal horizontal resolution, and the actual vertical resolution is greater than the nominal vertical resolution.

7. A controller, characterized in that, It includes at least one processor and at least one memory, the memory being adapted to store a plurality of program codes, characterized in that the program codes are adapted to be loaded and run by the processor to perform the display method according to any one of claims 1 to 6.

8. A computer-readable storage medium storing a plurality of program codes, characterized in that, The program code is adapted to be loaded and run by a processor to perform the display method according to any one of claims 1 to 6.

9. A display system, characterized in that, The display system includes a display module and the controller as described in claim 7; The display module includes: A backlight module includes a light-emitting area and a light-shielding area surrounding the light-emitting area; A display panel includes a display area and a peripheral area surrounding the display area. The light-emitting area and the display area are the same size, and the size of the display area is configured such that the actual resolution is greater than the nominal resolution of the display panel.

Images