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

Abstract

The invention 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 a backlight partition and a display partition and improve the display effect. Based on the purpose, the display module comprises a backlight module and a display panel, the size of a light-emitting area of the backlight module is the same as that of a display area of the display panel, and the size of the display area is configured to be that the actual resolution is larger than the nominal resolution of the display panel. When the backlight module and the display panel are assembled, the assembly deviation between the backlight module and the display panel is obtained, the pixels needing to be closed in the pixels corresponding to the actual resolution of the display panel are determined according to the assembly deviation, and the pixels needing to be closed are forbidden. In this way, the unclosed pixels in the pixels corresponding to the actual resolution provide nominal resolution, and the backlight module and the display panel can be effectively matched.

Description

Technical Field

[0001] The present application relates to the field of screen display technology, and specifically to a display module, a display method, a controller, a storage medium and a display system. Background Art

[0002] When designing the partitions of MLED (Mini LED) BLU (Back Light Unit), it is often necessary to match the display resolution of the display. For example, if the display resolution is 500*200, the backlight partition can be designed to be 50*20 or 10*4, etc., that is, the number of rows and columns of the partition is a multiple of the display resolution. This makes it easier to process the display algorithm.

[0003] However, due to the alignment tolerance of the MLED light board when assembling the backlight during the actual partition and display device assembly, there is also an alignment tolerance when assembling the display panel and the backlight. Even if the resolution and the backlight partition are divisible by an integer, they cannot be perfectly matched during actual alignment. In addition, the general alignment tolerance is between 0.2mm and 0.5mm (the alignment accuracy varies depending on the size). This causes the actual partition to be inaccurately aligned with the designed display screen. Due to the alignment deviation, there is a deviation between the actual display image and the corresponding partition, resulting in inconsistent display effects.

[0004] Accordingly, the art needs a new display solution to solve the above problems. Summary of the invention

[0005] In order to overcome the above-mentioned defects, the present application is proposed to solve or at least partially solve the problem of how to achieve effective matching between backlight partitions and display partitions to improve display effects.

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

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

[0008] The display panel comprises a display area and a peripheral area surrounding the display area.

[0009] The light emitting area and the display area 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.

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

[0011] The nominal resolution includes a nominal lateral resolution and a nominal longitudinal resolution.

[0012] The actual lateral resolution is greater than the nominal lateral resolution, and the actual longitudinal resolution is greater than the nominal longitudinal resolution.

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

[0014] The method comprises:

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

[0016] Determining pixels that need to be turned off among pixels corresponding to an actual resolution of the display panel according to the assembly deviation;

[0017] The pixels that need to be turned off are disabled, so that the pixels that are not turned off among the pixels corresponding to the actual resolution provide the nominal resolution.

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

[0019] Assembling the backlight module and the display panel to obtain an assembly result;

[0020] Comparing the assembly result with the theoretical assembly result to obtain the assembly deviation;

[0021] The theoretical assembly result is an assembly result in which the assembly deviation of the backlight module and the display panel is zero.

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

[0023] After the backlight module and the display panel are assembled, lighting up the preset partitions of the backlight module;

[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 a technical solution of the above display method, determining pixels that need to be turned off in the design resolution of the display panel according to the assembly deviation includes:

[0026] Determining the number of pixels that need to be turned off according to the assembly deviation and the pixel size of the display panel;

[0027] The pixels that need to be turned off are determined according to the number of pixels.

[0028] In a 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 are disabled through the display panel.

[0030] In a third aspect, a controller is provided, comprising at least one processor; and a memory communicatively connected to the at least one processor; wherein a computer program is stored in the memory, and when the computer program is executed by the at least one processor, the method described in any one of the technical solutions of the above-mentioned display method is implemented.

[0031] In a fourth aspect, a computer-readable storage medium is provided, wherein a plurality of program codes are stored in the computer-readable storage medium, wherein the program codes are suitable for being loaded and run by a processor to execute the method described in any one of the technical solutions of the above-mentioned display method.

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

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

[0034] In the implementation of the technical solution of the process flow management method provided by the present application, the display module of the present application 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 of the same size, and the size of the display area is configured so that the actual resolution is 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, and the pixels that need to be turned off in the pixels corresponding to the actual resolution of the display panel are determined according to the assembly deviation, and the pixels that need to be turned off are 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, the present application can disable some pixels in the display panel according to the assembly deviation, and on 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The disclosure of the present application will become easier to understand with reference to the accompanying drawings. It is easy for those skilled in the art to understand that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present application. Among them:

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

[0037] Figure 2 It is a schematic diagram comparing the existing situation of the backlight module and the display panel without and with assembly deviation;

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

[0039] Figure 4 It is a schematic diagram of the size relationship between the backlight module and the display panel in the prior art;

[0040] Figure 5 is a schematic flow chart of main steps of a display method according to an embodiment of the present application;

[0041] Figure 6 It is a schematic diagram of the alignment relationship between the backlight module and the display panel during ideal matching and the presence of assembly deviation according to an implementation method of an embodiment of the present application. DETAILED DESCRIPTION

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

[0043] In the description of the present application, "module" and "processor" may include hardware, software or a combination of the two. A module may include hardware circuits, various suitable sensors, communication ports, memory, and may also include software parts, such as program code, or a combination of software and hardware. The processor may be a central processing unit, a microprocessor, an image processor, a digital signal processor or any other suitable processor. The processor has data and / or signal processing functions. The processor may be implemented in software, hardware or a combination of the two. Computer-readable storage media include any suitable medium that can store program code, such as a disk, a hard disk, an optical disk, a flash memory, a read-only memory, a 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 term "at least one A or B" or "at least one of A and B" has a similar meaning to "A and / or B" and may include only A, only B or A and B. The singular terms "one" and "the" may also include plural forms.

[0044] In the prior art, such as Figure 1 As shown, when the backlight module and the display panel are assembled and aligned, there is often an incomplete alignment between the backlight module and the display panel, that is, there is an assembly deviation. Figure 4In the prior art, when designing the backlight module, the light-emitting area of ​​the backlight module is often larger than the display area of ​​the display panel. For example, the size of the light-emitting area (VA area) is the size corresponding to 1940*1100 pixels, while the size of the display area (AA area) is the size corresponding to 1920*1080 pixels (it is assumed here that the pixel sizes corresponding to the light-emitting area and the display area are the same). The purpose is to avoid the situation where some pixels in the display area do not emit light due to assembly deviations during the assembly process. 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 unilateral difference between the display area and the light-emitting area is Δ / 2. The design of the difference mainly considers factors such as assembly and material expansion, so as to ensure that all pixels in the display area can be displayed normally. However, in this case, the deviation generated during the assembly process cannot be avoided. For details, please refer to the attached Figure 2 ,like Figure 2 As shown, Figure 2 The left side of the figure shows the display effect when there is no assembly deviation, and the right side shows the display effect when there is assembly deviation. Figure 2 As can be seen on the right, when there is a display deviation, there will be abnormal display.

[0045] Therefore, the art needs a new display solution to solve the above problems.

[0046] See attached Figure 3 , Figure 3 A schematic diagram of the main components of a display module according to an embodiment of the present application. Figure 3 As shown, the display module in the embodiment of the present application 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 have the same size; the size of the display area is configured so that the actual resolution is greater than the nominal resolution of the display panel.

[0047] In one embodiment, the actual resolution includes an actual lateral resolution and an actual longitudinal resolution; the nominal resolution includes a nominal lateral resolution and a nominal longitudinal resolution, wherein the actual lateral resolution is greater than the nominal lateral resolution, and the actual longitudinal resolution is greater than the nominal longitudinal resolution.

[0048] In an example, Figure 3As shown, the size of the display area (AA area) is the size corresponding to the resolution of 1940*1100, and the size of the light-emitting area (VA area) is also the size corresponding to 1940*1100. The actual resolution of the display panel is 1940*1100, and the nominal resolution is 1920*1080. Among them, the nominal resolution is the product resolution provided by the display panel, that is, the resolution required for the display panel to display the picture. The actual resolution is the maximum resolution that the display panel can provide. The actual resolution is greater than the nominal resolution. During the actual display of the picture, the display panel will disable some pixels in the actual resolution, so as to display the display picture at the nominal resolution.

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

[0050] See attached Figure 5 , Figure 5 FIG. 1 is a flow chart of the main steps of a display method according to an embodiment of the present application. Figure 5 As shown, the display method is applied to the display module in the above display embodiment. The display method mainly includes the following steps S101 to S103.

[0051] Step S101: obtaining 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 implementation, step S101 may further include the following steps S1011 and S1012.

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

[0055] In this implementation, the backlight module and the display panel may be assembled to obtain an assembly result.

[0056] Step S1012: Compare the assembly result with the theoretical assembly result to obtain an assembly deviation; wherein the theoretical assembly result is an 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 the backlight module, the theoretical assembly result can be detected and obtained first. The assembly result (i.e., the assembled backlight module and display panel) with a zero assembly deviation can be fixedly placed in a first position, and the camera can be fixedly placed in a second position, the camera and the assembly result are relatively set, and the camera takes an image of the assembly result after the luminous area of ​​the backlight module is lit, as the theoretical assembly result. In the process of obtaining the assembly deviation, the assembly result composed of the assembled display panel and the backlight module is also fixedly placed in the first position, and the camera fixed in the second position is used to take a picture of the assembly result after the luminous area is lit, and the assembly result taken is compared with the theoretical assembly result, so as to obtain the assembly deviation. For example, the coordinate difference between the preset detection point or the preset image or the preset line in the theoretical assembly result and the actual assembly result taken 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 display screen after lighting, the coordinate difference between the detection point in the theoretical assembly result and the detection point in the actual assembly result can be calculated to obtain the assembly deviation.

[0060] If the assembly deviation is obtained according to a preset image or a preset line, point sampling can be performed on the preset image or the preset line, and the assembly deviation is obtained according to the average of the coordinate differences between the corresponding points obtained by sampling.

[0061] In one embodiment, after the backlight module and the display panel are assembled, the preset partition of the backlight module can be lit, and the assembly result of the preset partition can be compared with the theoretical assembly result of the preset partition to obtain the assembly deviation. For example, the assembly result with zero assembly deviation after assembly is fixed at the first position, and the camera is fixed at the second position, the camera and the assembly result are relatively set, and the camera takes an image of the assembly result after the preset partition is lit, as the theoretical assembly result of the preset partition. In the process of obtaining the assembly deviation, the assembly result composed of the assembled display panel and the backlight module is also fixed at the first position, and the preset partition is lit, and the camera fixed at the second position is used to take a picture of the assembly result after the preset partition is lit, and the assembly result taken is compared with the theoretical assembly result to obtain the assembly deviation. For example, the coordinate difference between the preset detection point or preset image or preset line in the theoretical assembly result and the actual assembly result can be compared as the assembly deviation. Among them, in this embodiment, the specific process of obtaining the assembly deviation is similar to the aforementioned embodiment, and for the sake of simplicity of description, it will not be repeated here.

[0062] Step S102: Determine pixels that need to be turned off among pixels corresponding to the actual resolution of the display panel according to the assembly deviation.

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

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

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

[0066] Step S1022: Determine the pixels that need to be turned off according to the number of pixels.

[0067] In this embodiment, the number of pixels to be turned off in the display area may be determined according to the assembly deviation and the pixel size of the display panel, and the pixels to be turned off may be determined according to the number of pixels to be turned off.

[0068] Please refer to the attached Figure 6 , Figure 6 Schematic diagram of the alignment relationship between the backlight module and the display panel during ideal matching and assembly deviation according to an implementation of an embodiment of the present application. Figure 6 As shown in the above picture, the actual resolution of the display area is 1940*1100, while the nominal resolution is 1920*1080. Taking the horizontal direction as an example, when the backlight module and the display panel are ideally matched (that is, 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 the pixels of the 11th to 1930th rows of the actual resolution when displaying the picture, thereby providing a horizontal nominal resolution of 1920.

[0069] In the actual assembly process of the backlight module and the display panel, Figure 6 As shown in the picture below, if the obtained 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 the horizontal direction as an example, at this time, 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 1st row to the 1930th row in the actual resolution are used to display the display screen, thereby providing a horizontal nominal resolution of 1920.

[0070] Step S103: disabling pixels that need to be turned off, so that pixels that are not turned off among pixels corresponding to the actual resolution provide the nominal resolution.

[0071] In this embodiment, pixels that need to be turned off may be disabled, so that the pixels corresponding to the actual resolution provide the nominal resolution for the turned-off pixels.

[0072] In one implementation, pixels that need to be turned off can be disabled by a control unit in the display panel. The control unit can be a controller, a TCON (timing control circuit, logic board), etc. in the display panel.

[0073] Based on the method described in the above steps S101 to S103, the display module of the embodiment of the present application 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 of the same size, and the size of the display area is configured so that the actual resolution is 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, and the pixels that need to be turned off in the pixels corresponding to the actual resolution of the display panel are determined according to the assembly deviation, and the pixels that need to be turned off are 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, the embodiment of the present application can disable some pixels in the display panel according to the assembly deviation, and on 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 pointed out that although the various steps in the above embodiments are described in a specific order, those skilled in the art can understand that in order to achieve the effect of the present application, different steps do not have to be executed in such an order. They can be executed simultaneously (in parallel) or in other orders. These adjusted schemes are equivalent to the technical schemes described in this application, and therefore will also fall within the scope of protection of this application.

[0075] It is understood by those skilled in the art that all or part of the processes in the method for implementing the above-mentioned embodiment of the present application can also be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device, medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory, random access memory, electrical carrier signal, telecommunication signal and software distribution medium, etc. that can carry the computer program code.

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

[0077] In an embodiment of a computer-readable storage medium according to the present application, the computer-readable storage medium may be configured to store a program for executing the display method of the above method embodiment, and the program may be loaded and run by a processor to implement the above display method. For ease of explanation, only the parts related to the embodiment of the present application are shown. For specific technical details not disclosed, please refer to the method part of the embodiment of the present application. The computer-readable storage medium may be a storage device formed by various electronic devices. Optionally, the computer-readable storage medium in the embodiment of the present application is a non-temporary computer-readable storage medium.

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

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

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

[0081] In an embodiment of a display system according to the present application, the display system may include the display module in the above display module embodiment and the controller in the above controller embodiment.

[0082] So far, the technical solution of the present application has been described in conjunction with an embodiment shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present 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 fall within the protection scope of the present application.

Claims

1. A display module, characterized in that: include: A backlight module, comprising a light-emitting area and a light-shielding area surrounding the light-emitting area; The display panel comprises a display area and a peripheral area surrounding the display area. The light emitting area and the display area 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.

2. The display module according to claim 1, characterized in that: The actual resolution includes an actual lateral resolution and an actual longitudinal resolution; The nominal resolution includes a nominal lateral resolution and a nominal longitudinal resolution; The actual lateral resolution is greater than the nominal lateral resolution, and the actual longitudinal resolution is greater than the nominal longitudinal resolution.

3. A display method, characterized in that: The method is applied to the display module described in any one of claims 1 to 2; The method comprises: Obtaining an assembly deviation between the backlight module and the display panel; Determining pixels that need to be turned off among pixels corresponding to an actual resolution of the display panel according to the assembly deviation; The pixels that need to be turned off are disabled, so that the pixels that are not turned off among the pixels corresponding to the actual resolution provide the nominal resolution.

4. The display method according to claim 3, characterized in that: The obtaining of the assembly deviation between the backlight module and the display panel includes: Assembling the backlight module and the display panel to obtain an assembly result; Comparing the assembly result with the theoretical assembly result to obtain the assembly deviation; The theoretical assembly result is an assembly result in which the assembly deviation of the backlight module and the display panel is zero.

5. The display method according to claim 4, characterized in that: The step of comparing the assembly result with the theoretical assembly result to obtain the assembly deviation includes: After the backlight module and the display panel are assembled, lighting up the preset partitions of the backlight module; The assembly deviation is obtained by comparing the assembly result of the preset partition with the theoretical assembly result of the preset partition.

6. The display method according to claim 3, characterized in that: The step of determining pixels that need to be turned off in the design resolution of the display panel according to the assembly deviation includes: Determining the number of pixels that need to be turned off according to the assembly deviation and the pixel size of the display panel; The pixels that need to be turned off are determined according to the number of pixels.

7. The display method according to claim 3 or 6, characterized in that: The disabling of the pixels that need to be turned off includes: The pixels that need to be turned off are disabled through the display panel.

8. A controller, characterized in that: The method comprises at least one processor and at least one memory, wherein the memory is suitable for storing a plurality of program codes, and is characterized in that the program codes are suitable for being loaded and run by the processor to execute the display method according to any one of claims 3 to 7.

9. A computer-readable storage medium storing a plurality of program codes, characterized in that: The program code is suitable for being loaded and run by a processor to execute the display method according to any one of claims 3 to 7.

10. A display system, characterized in that: The display system comprises the display module according to any one of claims 1 to 2 and the controller according to claim 8.

Images