Display panel testing method and testing device, electronic equipment and computer storage medium

Abstract

This application discloses a display panel testing method and testing device, electronic equipment, and computer storage medium. The display panel has a first display area and a second display area, and the transmittance of the first display area is lower than that of the second display area. The display panel testing method includes: obtaining reference display parameters of the first display area when the display panel displays a test image; obtaining sampled display parameters of the second display area when the display panel displays the test image; and determining the regional color difference between the sampled display parameters and the reference display parameters based on a preset color difference algorithm. According to embodiments of the application, the color difference between regions with different transmittances in the display panel can be tested.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and in particular relates to a display panel testing method and testing device, electronic equipment, and computer storage medium. Background Art

[0002] Organic light-emitting diodes (OLEDs) and flat-panel displays based on technologies such as light-emitting diodes (LEDs) are widely used in a variety of consumer electronics products, including mobile phones, televisions, laptops, and desktop computers, due to their advantages of high image quality, power efficiency, thin design, and wide application range. They have become the mainstream display device market. Traditionally, the production process of display panels typically uses a fine mask mask (FMM) to pattern the luminous pixels. While FMM technology is mature and boasts extensive mass production experience, it also suffers from limited precision, high development costs, and long development cycles. Maskless technology eliminates the limitations of traditional OLED processes on display size, resolution, and other performance characteristics, offering the advantages of high performance, full-scale scalability, and agile delivery. Patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN117580403A, CN118678743A, CN118660490A, CN118678724A, CN118678806A, CN118742084A, and CN118946184A describe the relevant contents of the maskless technology for reference.

[0003] However, the process performance of current OLED display products needs to be improved. Summary of the Invention

[0004] The embodiments of the present application provide a display panel testing method and testing device, an electronic device, and a computer storage medium, which are intended to test the color difference between areas with different transmittances in a display panel.

[0005] An embodiment of a first aspect of the present application provides a method for testing a display panel. The display panel has a first display area and a second display area. The transmittance of the first display area is lower than the transmittance of the second display area. The method for testing the display panel includes:

[0006] When the display panel displays a test image, obtaining reference display parameters of the first display area;

[0007] When the display panel displays a test image, obtaining sampled display parameters of the second display area;

[0008] The regional color difference between the sampled display parameters and the reference display parameters is determined based on a preset color difference algorithm.

[0009] An embodiment of the second aspect of the present application provides a testing device for a display panel, wherein the display panel has a first display area and a second display area, the transmittance of the first display area is less than the transmittance of the second display area, and the testing device for the display panel includes: a first acquisition module, used to obtain reference display parameters of the first display area when the display panel displays a test image; a second acquisition module, used to obtain sampled display parameters of the second display area when the display panel displays the test image; and a first determination module, used to determine the regional color difference between the sampled display parameters and the reference display parameters based on a preset color difference algorithm.

[0010] An embodiment of the third aspect of the present application provides an electronic device, which includes: a processor, and a memory storing computer program instructions; the processor reads and executes the computer program instructions to implement the display panel testing method of the aforementioned embodiment.

[0011] An embodiment of the fourth aspect of the present application provides a computer storage medium, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the display panel testing method of the aforementioned embodiment is implemented.

[0012] In a display panel testing method provided in an embodiment of the present application, by obtaining reference display parameters of the first display area and obtaining sampled display parameters of the second display area, and determining the regional color difference between the sampled display parameters and the reference display parameters based on a preset color difference algorithm, the regional color difference between the first display area and the second display area with different transmittances in the display panel can be tested and obtained, which is conducive to more accurately knowing the display uniformity between the first display area and the second display area with different transmittances in the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application. 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 creative work.

[0014] Figure 1 is a structural diagram of a display panel provided in an embodiment of the present application;

[0015] Figure 2 is a partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0016] Figure 3is a partial cross-sectional view of a display panel provided in another embodiment of the present application;

[0017] Figure 4 is a partial cross-sectional view of a display panel provided in yet another embodiment of the present application;

[0018] Figure 5 This is a flow chart of a display panel testing method provided in an embodiment of the present application;

[0019] Figure 6 This is a flow chart of a display panel testing method provided in another embodiment of the present application;

[0020] Figure 7 is a schematic diagram of a partial structure of a display panel provided in an embodiment of the present application;

[0021] Figure 8 is a schematic diagram of a partial structure of a display panel provided in another embodiment of the present application;

[0022] Figure 9 is a schematic diagram of a partial structure of a display panel provided in yet another embodiment of the present application;

[0023] Figure 10 is a schematic diagram of a partial structure of a display panel provided in another embodiment of the present application;

[0024] Figure 11 1 is a schematic structural diagram of a display panel testing device provided in an embodiment of the present application;

[0025] Figure 12 This is a structural diagram of an electronic device provided in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 10. Display panel;

[0028] 100, substrate; 110, underlay; 120, first insulating layer; 130, second insulating layer; 140, third insulating layer; 150, driving circuit; 151, transistor; 151a, gate; 151b, source and drain; 152, storage capacitor; 152a, first plate; 152b, second plate;

[0029] 200, pixel definition layer; 200a, pixel opening

[0030] 300, isolation structure; 300a, isolation opening; 300b, light-transmitting opening; 310, first isolation portion; 320, second isolation portion; 330, conductive portion;

[0031] 400, light-emitting device; 410, first electrode; 420, light-emitting functional layer; 430, second electrode;

[0032] 20. Testing device; 21. First acquisition module; 22. Second acquisition module; 23. First determination module;

[0033] 30-processor; 31-memory; 32-communication structure; 33-bus;

[0034] AA1, first display area; AA1a, first display non-test area; AA1b, first display test area; AA2, second display area; AA21, central area; AA21a, central non-test area; AA21b, central test area; AA21c, central retest area; AA22, peripheral area; AA22a, peripheral non-test area; AA22b, peripheral test area; AA22c, peripheral retest area;

[0035] NA, non-display area. DETAILED DESCRIPTION

[0036] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0038] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or region, it may mean that it is directly on the other layer or region, or that other layers or regions are included between it and the other layer or region. Furthermore, if the component is turned over, the layer or region will be "below" or "beneath" the other layer or region.

[0039] Embodiments of the present application provide a display panel testing method and testing device, an electronic device, and a computer storage medium. The following describes various embodiments of the display panel testing method and testing device, an electronic device, and a computer storage medium in conjunction with the accompanying drawings.

[0040] Figure 1 is a schematic structural diagram of a display panel 10 provided in an embodiment of the present application. Figure 2 It is a partial cross-sectional view of a display panel 10 provided in an embodiment of the present application.

[0041] like Figure 1 and Figure 2 As shown, an embodiment of the first aspect of the present application provides a method for testing a display panel. The display panel 10 tested by the method for testing a display panel may have a first display area AA1 and a second display area AA2.

[0042] Optionally, the display panel 10 may be an organic light emitting diode display panel 10 .

[0043] Optionally, both the first display area AA1 and the second display area AA2 of the display panel 10 can be used for luminous display. Exemplarily, the first display area AA1 and the second display area AA2 can display the same picture, or the first display area AA1 and the second display area AA2 can display different pictures.

[0044] Optionally, the display panel 10 may further include a non-display area NA that is not used for light-emitting display, and the non-display area NA may be disposed around the first display area AA1 and the second display area AA2 .

[0045] Optionally, the display panel 10 may include a substrate 100 and a plurality of light-emitting devices 400 disposed on one side of the substrate 100 . The light-emitting devices 400 may be used to participate in realizing the light-emitting display of the display panel 10 .

[0046] In some embodiments of the present application, the substrate 100 can be configured in various ways. For example, the substrate 100 may include a substrate 110 and a drive circuit 150 disposed on one side of the substrate 110. For example, the drive circuit 150 may include a transistor 151, a storage capacitor 152, and drive signal lines for connecting various devices. The transistor 151 may include a semiconductor, a gate 151a, and a source / drain 151b. The storage capacitor 152 may include a first plate 152a and a second plate 152b.

[0047] Optionally, the substrate 100 includes a stacked first insulating layer 120, a second insulating layer 130, and a third insulating layer 140. As an example, the gate 151a and the first electrode 152a may be located on the side of the first insulating layer 120 facing the substrate 110, the second electrode 152b may be located between the first insulating layer 120 and the second insulating layer 130, and the source and drain 151b may be located between the second insulating layer 130 and the third insulating layer 140.

[0048] Optionally, the light-emitting device 400 includes a first electrode 410 , a light-emitting functional layer 420 disposed on a side of the first electrode 410 facing away from the substrate 100 , and a second electrode 430 disposed on a side of the light-emitting functional layer 420 facing away from the substrate 100 .

[0049] Optionally, the driving circuit 150 may be electrically connected to the first electrode 410 , and the driving circuit 150 may be configured to provide a driving current to the first electrode 410 to drive the light-emitting device 400 to emit light.

[0050] Optionally, the light-emitting functional layer 420 may include a hole injection layer (HIL), a hole transport layer (HTL), a light-emitting structure, an electron injection layer (EIL), and an electron transport layer (ETL).

[0051] Optionally, the first electrode 410 and the second electrode 430 can serve as pixel electrodes of the display panel 10. One of the first electrode 410 and the second electrode 430 can serve as an anode, and the other can serve as a cathode to drive the light-emitting functional layer 420 to emit light. In the embodiment of the present application, the first electrode 410 is used as the anode of the display panel 10, and the second electrode 430 is used as the cathode of the display panel 10.

[0052] Optionally, the display panel 10 may further include an isolation structure 300 . The isolation structure 300 encloses a plurality of isolation openings 300 a . The light-emitting devices 400 are disposed corresponding to the isolation openings 300 a . The isolation structure 300 may be used to divide the sub-pixels of the display panel 10 .

[0053] Optionally, the isolation structure 300 includes a first isolation portion 310 and a second isolation portion 320 located on a side of the first isolation portion 310 facing away from the substrate 100 . The second isolation portion 320 is disposed protruding from the first isolation portion 310 toward the isolation opening 300 a .

[0054] By arranging the second isolation portion 320 to protrude from the first isolation portion 310 toward the isolation opening 300a, when preparing the light-emitting device 400 of the display panel 10, part of the material of the light-emitting device 400 (for example, the material of the light-emitting functional layer 420 and the material of the second electrode 430) can be directly vapor-deposited on the entire surface. The second isolation portion 320 can block at least part of the material used to prepare the light-emitting device 400 to separate the material of the light-emitting device 400 between adjacent sub-pixels, so as to form a plurality of light-emitting devices 400 that are spaced apart and located in different isolation openings 300a, thereby eliminating the need to set a mask with high precision when preparing the light-emitting device 400 of the display panel 10. For example, there is no need to set a high-precision metal mask (Fine Metal Mask, FMM) when vapor-depositing part of the material of the light-emitting device 400, thereby effectively reducing the production and preparation cost of the display panel 10.

[0055] Optionally, the material of the isolation structure 300 may include a conductive material, and the second electrode 430 may be connected to the isolation structure 300 , so that the second electrodes 430 of adjacent light-emitting devices 400 can be electrically connected through the isolation structure 300 to facilitate control of the second electrodes 430 .

[0056] Optionally, the isolation structure 300 further includes a conductive portion 330 disposed on the side of the first isolation portion 310 facing the substrate 100. The conductive portion 330 may be disposed protruding from the first isolation portion 310 toward the isolation opening 300a, and the second electrode 430 may be connected to the conductive portion 330. By disposing the conductive portion 330 protruding from the first isolation portion 310 toward the isolation opening 300a, a larger area is provided on the conductive portion 330, which facilitates connection with the second electrode 430, thereby facilitating electrical connection between the second electrode 430 and the isolation structure 300.

[0057] Optionally, the display panel 10 may further include a pixel definition layer 200 disposed on one side of the substrate 100 and the first electrode 410. The pixel definition layer 200 may include a pixel opening 200a that communicates with the isolation opening 300a. The number of isolation openings 300a and pixel openings 200a may be multiple, and a single isolation opening 300a may communicate with a single pixel opening 200a. A portion of a single light-emitting device 400 may be located within the pixel opening 200a, while another portion of the single light-emitting device 400 may be located within the isolation opening 300a. The pixel definition layer 200 may also be used to divide the display panel 10 into sub-pixels.

[0058] Optionally, the relative positions of the pixel definition layer 200 and the isolation structure 300 can be arranged in various ways. For example, the isolation structure 300 can be arranged on the side of the pixel definition layer 200 facing away from the substrate 100, that is, the isolation structure 300 can be directly arranged on the pixel definition layer 200. Alternatively, for example, the pixel definition layer 200 can be provided with a receiving groove (not shown in the figure), and at least a portion of the isolation structure 300 can be located within the receiving groove. This makes it less likely that the isolation structure 300 is too tall compared to the substrate 100, thereby effectively reducing the thickness of the display panel 10.

[0059] In some optional embodiments, the transmittance of the first display area AA1 may be lower than the transmittance of the second display area AA2, so that the second display area AA2 is less likely to significantly block light. When the display panel 10 is applied to a display device, the light-sensing component in the display device for sensing light may be correspondingly arranged under the second display area AA2 having a higher transmittance, so that the light-sensing component can better sense light. Exemplarily, the light-sensing component may include at least one of: a distance sensor, a camera, an under-screen fingerprint recognition module, an infrared light emitting diode (IR-LED) proximity sensor, and other components capable of sensing light.

[0060] The present application does not specifically limit the size relationship between the first display area AA1 and the second display area AA2.

[0061] In some embodiments, the size of the first display area AA1 may be larger than that of the second display area AA2, so that the first display area AA1 can be used as the main display area in the display panel 10, and the second display area AA2 can be used as the auxiliary display area or functional display area of ​​the display panel 10.

[0062] In other embodiments, the size of the first display area AA1 may be equal to or smaller than the size of the second display area AA2, so that a larger photosensitive component may be correspondingly arranged under the second display area AA2, which is beneficial to improving the photosensitivity of the photosensitive component.

[0063] In some embodiments of the present application, there are multiple ways to achieve that the transmittance of the first display area AA1 in the display panel 10 is lower than the transmittance of the second display area AA2 .

[0064] In some optional embodiments, the arrangement density of the light-emitting devices 400 in the first display area AA1 is greater than the arrangement density of the light-emitting devices 400 in the second display area AA2, which can facilitate reducing the blocking effect of the light-emitting devices 400 in the second display area AA2 on light, thereby facilitating the realization of a light transmittance of the first display area AA1 lower than the light transmittance of the second display area AA2.

[0065] It can be understood that when the arrangement density of the light-emitting devices 400 in the second display area AA2 is reduced, the arrangement density of the driving circuit 150 in the second display area AA2 can also be reduced, which can facilitate reducing the blocking effect of the driving circuit 150 in the second display area AA2 on light, thereby facilitating the realization of the transmittance of the first display area AA1 being lower than the transmittance of the second display area AA2.

[0066] Figure 3 It is a partial cross-sectional view of a display panel 10 provided in another embodiment of the present application.

[0067] like Figure 3 As shown, in some optional embodiments, the isolation structure 300 located in the second display area AA2 is provided with a light-transmitting opening 300 b.

[0068] Optionally, the light-transmitting opening 300 b may be provided through the isolation structure 300 .

[0069] Optionally, the light-transmitting opening 300 b may be disposed between adjacent isolation openings 300 a .

[0070] By opening a light-transmitting opening 300b on the isolation structure 300 in the second display area AA2, light can be better transmitted through the light-transmitting opening 300b, which can facilitate reducing the blocking effect of the isolation structure 300 in the second display area AA2 on light, thereby facilitating the light transmittance of the first display area AA1 to be lower than the light transmittance of the second display area AA2.

[0071] In some embodiments of the present application, in order to achieve a transmittance difference between the first display area AA1 and the second display area AA2, during the preparation process of the display panel 10, the display effect of the second display area AA2 of the display panel 10 is easily affected by fluctuations in the preparation process, which makes it easy to have a gap between the display effect of the first display area AA1 and the display effect of the second display area AA2, that is, it is easy to cause poor display uniformity of the display panel 10.

[0072] Figure 4 FIG. 1 is a partial cross-sectional view of a display panel 10 provided in yet another embodiment of the present application.

[0073] like Figure 4As shown, exemplarily, during the preparation process of the display panel 10, due to the influence of fluctuations in the preparation process, the etching degree of the material of the first isolation portion 310 in the isolation structure 300 in the first display area AA1 by the etching material is easily different from the etching degree of the material of the first isolation portion 310 in the isolation structure 300 in the second display area AA2 by the etching material, so that the extension length of the second isolation portion 320 in the isolation structure 300 in the first display area AA1 relative to the first isolation portion 310 toward the isolation opening 300a is different from the extension length of the second isolation portion 320 in the isolation structure 300 at least partially in the second display area AA2 relative to the first isolation portion 310 toward the isolation opening 300a. The difference results in a difference between the shielding effect of the second isolation portion 320 in the first display area AA1 on the material of the light-emitting device 400 and the shielding effect of the second isolation portion 320 at some positions in the second display area AA2 on the material of the light-emitting device 400, resulting in a difference between the overlapping area between the second electrode 430 and the isolation structure 300 in the first display area AA1 and the overlapping area between the second electrode 430 and the isolation structure 300 at at least some positions in the second display area AA2, thereby making the light-emitting effect of the light-emitting device 400 in the first display area AA1 different from the light-emitting effect of at least some of the light-emitting devices 400 in the second display area AA2, which can easily lead to poor display uniformity of the display panel 10.

[0074] For example, Figure 4 As shown, the protruding length of the second isolation portion 320 in the isolation structure 300 in the second display area AA2 relative to the first isolation portion 310 toward the isolation opening 300a may be partially greater than the protruding length of the second isolation portion 320 in the isolation structure 300 in the first display area AA1 relative to the first isolation portion 310 toward the isolation opening 300a, so that the overlapping area between the second electrode 430 and the isolation structure 300 at at least part of the position in the second display area AA2 is easily smaller than the overlapping area between the second electrode 430 and the isolation structure 300 in the first display area AA1, thereby making the luminous brightness of the light-emitting device 400 in the first display area AA1 easily greater than the luminous brightness of at least part of the light-emitting device 400 in the second display area AA2, and thus easily making the display uniformity of the display panel 10 poor.

[0075] For another example, the protruding length of the second isolation portion 320 in the isolation structure 300 in the second display area AA2 relative to the first isolation portion 310 toward the isolation opening 300a may be partially smaller than the protruding length of the second isolation portion 320 in the isolation structure 300 in the first display area AA1 relative to the first isolation portion 310 toward the isolation opening 300a (not shown in the figure), so that the overlapping area between the second electrode 430 and the isolation structure 300 at at least some positions in the second display area AA2 is likely to be larger than the overlapping area between the second electrode 430 and the isolation structure 300 in the first display area AA1, thereby making the luminous brightness of the light-emitting device 400 in the first display area AA1 easily lower than the luminous brightness of at least some of the light-emitting devices 400 in the second display area AA2, and thus easily making the display uniformity of the display panel 10 poor.

[0076] Based on this, the display panel testing method provided in the embodiment of the first aspect of the present application can be used to detect the color difference between the first display area AA1 and the second display area AA2 with different transmittances in the display panel 10, which can facilitate the subsequent brightness compensation of the color difference between the first display area AA1 and the second display area AA2 in the display panel 10, thereby facilitating the improvement of the display uniformity of the display panel 10.

[0077] Figure 5 This is a flow chart of a display panel testing method provided in an embodiment of the present application.

[0078] like Figure 5 As shown, the display panel testing method provided by the embodiment of the first aspect of the present application may include the following steps:

[0079] S101 . When the display panel 10 displays a test image, obtain reference display parameters of the first display area AA1 .

[0080] S102 : When the display panel 10 displays a test image, obtain sampled display parameters of the second display area AA2 .

[0081] Optionally, the test image may be a white image.

[0082] Optionally, when displaying a test image, the first display area AA1 of the display panel 10 may have a test brightness. For example, the test brightness may be within a closed range of 2 nit to 800 nit.

[0083] S103 : Determine the regional color difference between the sampled display parameter and the reference display parameter based on a preset color difference algorithm.

[0084] Optionally, the preset color difference algorithm may be any algorithm for calculating the color difference between two areas. For example, the preset color difference algorithm may include color difference formulas recommended by organizations such as the Commission Internationale de l'Eclairage (CIE) and the Colour Measurement Committee of UK (CMC).

[0085] For example, the preset color difference algorithm may include at least one of a CIELAB color difference formula, a CMC (l:c) color difference formula, a CIE94 color difference formula, a CIE94 color difference formula, and a CIEDE2000 color difference formula.

[0086] For ease of description, the following embodiments are described by taking the example that the preset color difference algorithm may include the CIELAB color difference formula.

[0087] Optionally, any instrument for testing color difference can be used to obtain reference display parameters of the first display area AA1 and sample display parameters of the second display area AA2, that is, the testing method provided in the embodiment of the present application can be used for any instrument for testing color difference.

[0088] Optionally, the reference display parameter may include a first brightness , first red-green and the first yellow-blue saturation , the sampled display parameters may include a second brightness , second red-green and the second yellow-blue shade , S102 may include: the regional color difference is , .

[0089] In a display panel testing method provided in an embodiment of the present application, by obtaining reference display parameters of the first display area AA1 and obtaining sampled display parameters of the second display area AA2, and determining the regional color difference between the sampled display parameters and the reference display parameters based on a preset color difference algorithm, the regional color difference between the first display area AA1 and the second display area AA2 with different transmittances in the display panel 10 can be tested and obtained, which is conducive to more accurately knowing the display uniformity between the first display area AA1 and the second display area AA2 with different transmittances in the display panel 10.

[0090] Figure 6 FIG. 1 is a flow chart of a display panel testing method provided in another embodiment of the present application. Figure 7 1 is a schematic diagram of a partial structure of a display panel 10 provided in an embodiment of the present application.

[0091] like Figure 6 and Figure 7 As shown, in some optional embodiments, the second display area AA2 includes a central area AA21 and a peripheral area AA22 disposed between the central area AA21 and the first display area AA1, the sampled display parameters include central display parameters corresponding to the central area AA21, and the regional color difference includes a first color difference corresponding to the central area AA21. The display panel testing method further includes:

[0092] S104 . When the display panel 10 displays a test image, obtain peripheral display parameters of the peripheral area AA22 .

[0093] S105 : Determine a second color difference between the peripheral display parameter and the reference display parameter based on a preset color difference algorithm.

[0094] Optionally, in S102 : when the display panel 10 displays a test image, obtain a central display parameter of the central area AA21 .

[0095] Optionally, in S103: determining a first color difference between the central display parameter and the reference display parameter based on a preset color difference algorithm.

[0096] Alternatively, S102 and S104 may be performed simultaneously, and S103 and S105 may be performed simultaneously. Alternatively, S102 may precede S104, and S103 may precede S105. For example, S102 and S103 may be performed first, and then S104 and S105. Alternatively, S104 may precede S102, and S105 may precede S103. For example, S104 and S105 may be performed first, and then S102 and S103.

[0097] Optionally, the peripheral area AA22 may be disposed around the central area AA21. As an example, the peripheral area AA22 may be ring-shaped.

[0098] Optionally, the first display area AA1 may be disposed around the peripheral area AA22 , or the first display area AA1 and the non-display area NA may be disposed together around the peripheral area AA22 .

[0099] In these optional embodiments, by separately measuring the first color difference between the central area AA21 and the first display area AA1 and the second color difference between the peripheral area AA22 and the first display area AA1, that is, measuring the color difference between different positions in the second display area AA2 in the first display area AA1 over a larger span, it is possible to more accurately know the overall color difference performance degree between the second display area AA2 and the first display area AA1.

[0100] Furthermore, as an example, because the peripheral area AA22 is closer to the first display area AA1 than the central area AA21, the color difference between the first display area AA1 and the peripheral area AA22 is easier for the user's naked eye to discern. However, the user is less sensitive to the color difference between the central area AA21 and the first display area AA1, which is farther away from the first display area AA1. Therefore, by separately measuring the first color difference between the central area AA21 and the first display area AA1, and the second color difference between the peripheral area AA22 and the first display area AA1, it is possible to determine the degree of color difference between the second display area AA2 and the first display area AA1 at locations with varying degrees of color difference discrimination difficulty, thereby more accurately determining the overall degree of color difference between the second display area AA2 and the first display area AA1.

[0101] In some embodiments of the present application, it is not necessary to obtain the central display parameters at all positions within the central area AA21. Only the central display parameters at some positions within the central area AA21 may be obtained, which can improve test efficiency.

[0102] In some optional embodiments, the central area AA21 may include a central non-test area AA21a and at least one central test area AA21b. S102 may include: selecting at least one central test area AA21b in the central area AA21, and obtaining the central display parameters of the central test area AA21b.

[0103] Optionally, the central non-test area AA21a may be arranged around the central test area AA21b.

[0104] Optionally, the number of central test areas AA21b may be one or more, and this application does not impose any limitation thereto. When there are multiple central test areas AA21b, the multiple central test areas AA21b can be arranged relatively evenly within the central area AA21, enabling more accurate measurement of the overall color difference between the central area AA21 and the first display area AA1.

[0105] Optionally, when there are multiple central test areas AA21b, a corresponding number of central display parameters may be acquired, and each first color difference may be determined according to each central display parameter.

[0106] For example, when there are multiple central test areas AA21b, in S102, only one central test area AA21b may be selected within the central area AA21, and the central display parameters of the central test area AA21b may be obtained. In S103, a first color difference between the reference display parameters and the single central display parameter may be determined based on a preset color difference algorithm. In this optional embodiment, steps S102 and S103 may be repeated to sequentially determine the first color difference corresponding to each central test area AA21b.

[0107] Alternatively, for example, when there are multiple central test areas AA21b, in S102, multiple central test areas AA21b may be selected within central area AA21, and central display parameters for each central test area AA21b may be obtained. In S103, a first color difference between the reference display parameter and each central display parameter may be determined based on a preset color difference algorithm. In this optional embodiment, the first color differences corresponding to multiple central test areas AA21b may be simultaneously determined in a single step of S102 and a single step of S103, significantly improving testing efficiency.

[0108] In some embodiments of the present application, it is not necessary to obtain peripheral display parameters at all positions within the peripheral area AA22. Only peripheral display parameters at some positions within the peripheral area AA22 may be obtained, which can improve test efficiency.

[0109] In some optional embodiments, the peripheral area AA22 includes a peripheral non-test area AA22a and at least one peripheral test area AA22b. S104 may include: selecting at least one peripheral test area AA22b in the peripheral area AA22, and obtaining peripheral display parameters of the peripheral test area AA22b.

[0110] Optionally, the peripheral non-test area AA22a may be arranged around the peripheral test area AA22b.

[0111] Optionally, the number of the peripheral test areas AA22b may be one or more, which is not limited in this application.

[0112] Optionally, when there are multiple peripheral test areas AA22b, the multiple peripheral test areas AA22b can be arranged at equal intervals around the central area AA21, so as to more accurately measure the overall color difference between the peripheral area AA22 and the first display area AA1.

[0113] Optionally, in the same peripheral area AA22 , the distances from each peripheral test area AA22 b to the central area AA21 may be approximately or equal.

[0114] Optionally, when there are multiple peripheral test areas AA22b, a corresponding number of peripheral display parameters may be acquired, and each second color difference may be determined according to each peripheral display parameter.

[0115] For example, in S104, when there are multiple peripheral test areas AA22b, only one peripheral test area AA22b may be selected within the peripheral area AA22, and the peripheral display parameters of the peripheral test area AA22b may be obtained. In S105, a second color difference between the reference display parameters and the single peripheral display parameter may be determined based on a preset color difference algorithm. In this optional embodiment, steps S104 and S105 may be repeated to sequentially determine the second color difference corresponding to each peripheral test area AA22b.

[0116] Alternatively, in step S104, if there are multiple peripheral test areas AA22b, multiple peripheral test areas AA22b may be selected within the peripheral area AA22, and the peripheral display parameters of each peripheral test area AA22b may be obtained. In step S105, a second color difference between the reference display parameter and each peripheral display parameter may be determined based on a preset color difference algorithm. In this optional embodiment, the second color differences corresponding to multiple peripheral test areas AA22b may be simultaneously determined in a single step S104 and a single step S105, significantly improving testing efficiency.

[0117] In some embodiments of the present application, it is not necessary to obtain reference display parameters at all positions in the first display area AA1. Only reference display parameters at some positions in the first display area AA1 may be obtained, which can improve test efficiency.

[0118] In some optional embodiments, the first display area AA1 includes a first display non-test area AA1a and at least one first display test area AA1b. S101 may include: selecting at least one first display test area AA1b in the first display area AA1, and obtaining reference display parameters of the first display test area AA1b.

[0119] Optionally, the first display non-test area AA1a may be disposed around the first display test area AA1b.

[0120] Optionally, the number of first display test areas AA1b may be one or more, and this application does not impose any limitation thereto. When there are multiple first display test areas AA1b, the multiple first display test areas AA1b may be arranged at relatively even intervals around the second display area AA2. For example, the multiple first display test areas AA1b may be arranged at equal intervals around the second display area AA2. For another example, the distances between each first display test area AA1b and the second display area AA2 may be approximately or equal.

[0121] Optionally, when there are multiple first display test areas AA1b, a corresponding number of reference display parameters may be obtained. A first color difference between any reference display parameter and any central display parameter may be determined based on a preset color difference algorithm, and a second color difference between any reference display parameter and any peripheral display parameter may also be determined based on a preset color difference algorithm.

[0122] In some optional embodiments, the distance between the first display test area AA1b and the second display area AA2 is not greater than a first preset distance.

[0123] Optionally, the first preset distance is not less than 5 mm and not more than 10 mm. For example, the first preset distance may be 5 mm, 6 mm, 7 mm, 8 mm, 9 mm or 10 mm.

[0124] In these optional embodiments, by setting the distance between the first display test area AA1b and the second display area AA2 to be no greater than the first preset distance, it is less likely that there will be a large distance between the first display test area AA1b and the second display area AA2, which can facilitate improving the reference value of the reference display information obtained in the first display area AA1.

[0125] As an example, when the distance between the first display test area AA1b and the second display area AA2 is small, the color difference between the first display test area AA1b and the second display area AA2 is easier to be recognized by the user's naked eye. Therefore, by setting the distance between the first display test area AA1b and the second display area AA2 to be no greater than the first preset distance, it can be helpful to know the degree of color difference performance between the first display test area AA1b and the second display area AA2 with lower color difference identification difficulty, thereby facilitating a more accurate knowledge of the overall color difference performance between the second display area AA2 and the first display area AA1.

[0126] For example, when the second electrode 430 transmits a signal through the isolation structure 300, a voltage difference is likely to exist between the second electrodes 430 at two locations that are far apart. Consequently, the display effects at the two locations are likely to differ, i.e., color differences are likely to exist between the two locations. Therefore, by setting the distance between the first display test area AA1b and the second display area AA2 to no greater than a first predetermined distance, the reference display information obtained in the first display test area AA1b is more reliable, facilitating the determination of more representative first and second color differences.

[0127] In some optional embodiments, after S105, the following steps are further included:

[0128] S106, comparing the first color difference with a first preset color difference, and comparing the second color difference with a second preset color difference, wherein the second preset color difference is not greater than the first preset color difference;

[0129] When the first color difference is not greater than the first preset color difference, and the second color difference is not greater than the second preset color difference, obtaining a first test result;

[0130] In the case that the first color difference is greater than the first preset color difference, and / or the second color difference is greater than the second preset color difference, a second test result is obtained.

[0131] Optionally, the first preset color difference is not less than 6 and not more than 8, and / or the second preset color difference is not less than 6 and not more than 8. Exemplarily, the first preset color difference may be 6, 6.5, 7, 7.5 or 8, and the second preset color difference may be 6, 6.5, 7, 7.5 or 8.

[0132] Optionally, when the number of first color differences is one and the number of second color differences is multiple, in S105, a first test result can be obtained when the first color difference is not greater than the first preset color difference and each second color difference is not greater than the second preset color difference; a second test result can be obtained when the first color difference is greater than the first preset color difference, and / or at least one second color difference is greater than the second preset color difference.

[0133] Optionally, when the number of first color differences and second color differences is multiple, in S106, a first test result can be obtained when each first color difference is not greater than the first preset color difference, and each second color difference is not greater than the second preset color difference; a second test result can be obtained when at least one first color difference is greater than the first preset color difference, and / or at least one second color difference is greater than the second preset color difference.

[0134] In these optional embodiments, when the first test result is obtained in S106, it may mean that the color difference test result of the display panel 10 is qualified, that is, the color difference between the first display area AA1 and the second display area AA2 of the display panel 10 meets the standard, or it may mean that the color difference test result of the display panel 10 is preliminarily qualified, that is, it means that further testing can be performed on the color difference between the first display area AA1 and the second display area AA2 of the display panel 10. When the second test result is obtained in S106, it may mean that the color difference test result of the display panel 10 is unqualified.

[0135] Among them, when the second preset color difference is equal to the first preset color difference, the color difference qualification standard for judging the color difference between the first display area AA1 and the central area AA21 can be the same as the color difference qualification standard between the first display area AA1 and the peripheral area AA22, that is, the color difference between the first display area AA1 and the central area AA21 and the color difference between the first display area AA1 and the peripheral area AA22 both need to be no greater than the same color difference value.

[0136] When the second preset color difference is smaller than the first preset color difference, during the test of the display panel 10, the color difference requirement between the peripheral area AA22 and the first display area AA1 may be higher, while the color difference requirement between the central area AA21 and the first display area AA1 may be appropriately lowered. That is, since the color difference between the first display area AA1 and the peripheral area AA22 is easier to be recognized by the user's naked eye, the color difference between the peripheral area AA22 and the first display area AA1 may be required to be lower. Since the user is less sensitive to the color difference between the central area AA21 which is farther away from the first display area AA1 and the first display area AA1, the color difference between the central area AA21 and the first display area AA1 may be allowed to be appropriately higher.

[0137] Figure 8 It is a schematic diagram of a partial structure of a display panel 10 provided in another embodiment of the present application.

[0138] In some optional embodiments, the number of the peripheral areas AA22 is at least two, and the at least two peripheral areas AA22 are nested in sequence.

[0139] Optionally, at least two peripheral areas AA22 are nested in sequence, which may mean that the peripheral area AA22 may be ring-shaped, and in two adjacent peripheral areas AA22, the peripheral area AA22 close to the first display area AA1 may surround the peripheral area AA22 close to the center area AA21.

[0140] Optionally, each peripheral area AA22 may include at least two peripheral test areas AA22b.

[0141] In these optional embodiments, by setting the number of peripheral areas AA22 to be multiple, and at least two peripheral areas AA22 are nested in sequence, the peripheral test area AA22b can be more evenly distributed between the central area AA21 and the first display area AA1, thereby facilitating a more accurate understanding of the overall color difference between the second display area AA2 and the first display area AA1.

[0142] In some optional embodiments, in any two peripheral areas AA22 , the second preset color difference corresponding to the peripheral area AA22 close to the first display area AA1 is not greater than the second preset color difference corresponding to the peripheral area AA22 away from the first display area AA1 .

[0143] For example, Figure 8 As shown, the number of peripheral areas AA22 may be two, and the second preset color difference used to participate in the comparison of the second color difference between the peripheral area AA22 on the side close to the first display area AA1 and the first display area AA1 may not be greater than the second preset color difference used to participate in the comparison of the second color difference between the peripheral area AA22 on the side far from the first display area AA1 and the first display area AA1.

[0144] In these optional embodiments, when the second preset color difference corresponding to the peripheral area AA22 close to the side of the first display area AA1 is equal to the second preset color difference corresponding to the peripheral area AA22 away from the side of the first display area AA1, the qualified standards for judging the color difference between the first display area AA1 and each peripheral area AA22 can be the same, that is, the color difference between the first display area AA1 and each peripheral area AA22 needs to be no greater than the same color difference value.

[0145] When the second preset color difference corresponding to the peripheral area AA22 on the side closer to the first display area AA1 is smaller than the second preset color difference corresponding to the peripheral area AA22 on the side farther from the first display area AA1, during the testing process of the display panel 10, a higher color difference requirement may be placed on the peripheral area AA22 closer to the first display area AA1 and the first display area AA1, while a lower color difference requirement may be appropriately placed on the peripheral area AA22 farther from the first display area AA1 and the first display area AA1. That is, because the color difference between the first display area AA1 and the peripheral area AA22 closer to the first display area AA1 is easier for the user's naked eye to perceive, a lower color difference may be placed on the peripheral area AA22 closer to the first display area AA1 and the first display area AA1. Since the user is less sensitive to the color difference between the peripheral area AA22 farther from the first display area AA1 and the first display area AA1, a higher color difference may be allowed on the peripheral area AA22 farther from the first display area AA1 and the first display area AA1.

[0146] Figure 9 FIG. 1 is a schematic diagram of a partial structure of a display panel 10 provided in yet another embodiment of the present application.

[0147] like Figure 9 As shown, in some optional embodiments, after S106, the following steps may also be included:

[0148] S107. When the first color difference is less than the first preset color difference and the first color difference corresponding to at least one central test area AA21b is greater than the first warning color difference, select at least one central re-test area AA21c in the central non-test area AA21a surrounding the central test area AA21b corresponding to the first color difference greater than the first warning color difference, and obtain the central re-test display parameters of the central re-test area AA21c, wherein the first warning color difference is less than the first preset color difference.

[0149] S108 , determining a first remeasured color difference between the center remeasured display parameter and the reference display parameter based on a preset color difference algorithm.

[0150] Optionally, the first warning color difference is not less than 5 and not more than 6. Exemplarily, the first warning color difference may be 5, 5.5 or 6.

[0151] In these optional embodiments, when the measured first color difference between the first display area AA1 and a central test area AA21b is greater than the first warning color difference, it can be considered that the first color difference corresponding to the central test area AA21b meets the requirement but the color difference value is too high. Therefore, it can be considered that the adjacent positions around the central test area AA21b with the high color difference value are likely to have color difference abnormalities. Therefore, in S107, a central re-test area AA21c can be selected within the central non-test area AA21a around the central test area AA21b with the high color difference value, and the central re-test display parameters of the central re-test area AA21c can be obtained. Then, in S108, the first re-test color difference between the central re-test area AA21c and the first display area AA1 can be determined. This facilitates determining whether there are color difference abnormalities around the adjacent positions around the central test area AA21b with the high color difference value, thereby facilitating more accurately determining the display uniformity between the first display area AA1 and the second display area AA2 of different light transmittances in the display panel 10.

[0152] Optionally, after S108, the following steps are also included:

[0153] S109: Compare the first remeasured color difference with the first preset color difference, and obtain a first remeasurement result if the first remeasured color difference is not greater than the first preset color difference; and obtain a second remeasurement result if the first remeasured color difference is greater than the first preset color difference.

[0154] In this optional embodiment, when the first retest result is obtained in S109, it may mean that no abnormal color difference area exists around the central test area AA21b with high color difference values. When the second retest result is obtained in S109, it may mean that an abnormal color difference area exists around the central test area AA21b with high color difference values.

[0155] In some embodiments of the present application, the number of the central re-measurement area AA21c may be one or more, which is not specifically limited in the present application.

[0156] like Figure 9 As shown, in some optional embodiments, there are multiple central retest areas AA21c, and the multiple central retest areas AA21c are spaced around the central test area AA21b corresponding to the first color difference being greater than the first warning color difference.

[0157] Optionally, a plurality of central retest areas AA21c may be arranged at equal intervals around the central test area AA21b corresponding to the first color difference being greater than the first warning color difference.

[0158] Optionally, the distances between the multiple central re-measurement areas AA21c and the central area AA21 may be approximately or equal.

[0159] Optionally, when there are multiple central retest areas AA21c, a corresponding number of central retest display parameters may be obtained, and each first retest color difference may be determined based on each central retest display parameter. For example, a first retest result may be obtained only when all first retest color differences are no greater than a first preset color difference, and a second retest result may be obtained when at least one first retest color difference is greater than the first preset color difference.

[0160] In these optional embodiments, by setting the number of central re-test areas AA21c to be multiple, it is possible to more fully perform color difference testing on the periphery of the central test area AA21b where the color difference value is relatively high, thereby facilitating a more accurate judgment on whether there is an abnormal color difference area in the vicinity of the periphery of the central test area AA21b where the color difference value is relatively high.

[0161] In some optional embodiments, the distance between the central retest area AA21c and the central test area AA21b is not greater than a first preset distance.

[0162] Optionally, the first preset distance is not less than 1.2 mm and not more than 1.6 mm. Exemplarily, the first preset distance may be 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm or 1.6 mm.

[0163] In these optional embodiments, by reasonably setting the distance between the central re-test area AA21c and the central test area AA21b, color difference testing can be performed on the periphery of the central test area AA21b where the color difference value is relatively high, thereby facilitating a more accurate judgment of whether there is an abnormal color difference area in the vicinity of the periphery of the central test area AA21b where the color difference value is relatively high.

[0164] Figure 101 is a partial structural diagram of a display panel 10 provided in another embodiment of the present application.

[0165] like Figure 10 As shown, in some optional embodiments, after S106, the following steps may also be included:

[0166] S110. When the second color difference is less than the second preset color difference and the second color difference corresponding to at least one peripheral test area AA22b is greater than the second warning color difference, select at least one peripheral retest area AA22c in the peripheral non-test area AA22a surrounding the peripheral test area AA22b corresponding to the second color difference greater than the second warning color difference, and obtain the peripheral retest display parameters of the peripheral retest area AA22c, wherein the second warning color difference is less than the second preset color difference.

[0167] S111 , determining a second remeasured color difference between the peripheral remeasured display parameter and the reference display parameter based on a preset color difference algorithm.

[0168] Optionally, the second warning color difference is not less than 5 and not more than 6. Exemplarily, the second warning color difference may be 5, 5.5 or 6.

[0169] In these optional embodiments, when the measured second color difference between the first display area AA1 and a peripheral test area AA22b is greater than the second warning color difference, it can be considered that the second color difference corresponding to the peripheral test area AA22b meets the requirement but is too high. Therefore, it can be considered that areas adjacent to the peripheral test area AA22b with the high color difference value are likely to have color difference abnormalities. Therefore, in S110, a peripheral re-test area AA22c can be selected within the peripheral non-test area AA22a surrounding the peripheral test area AA22b with the high color difference value, and the peripheral re-test display parameters of the peripheral re-test area AA22c can be obtained. Then, in S111, the second re-test color difference between the peripheral re-test area AA22c and the first display area AA1 can be determined. This facilitates determining whether areas adjacent to the peripheral test area AA22b with the high color difference value have color difference abnormalities, thereby facilitating more accurately determining the display uniformity between the first display area AA1 and the second display area AA2 of the display panel 10 with different light transmittances.

[0170] Optionally, after S111, the following steps are also included:

[0171] S112. Compare the second remeasured color difference with the second preset color difference. If the second remeasured color difference is not greater than the second preset color difference, obtain a third remeasurement result; if the second remeasured color difference is greater than the second preset color difference, obtain a fourth remeasurement result.

[0172] In this optional embodiment, when the third retest result is obtained in S112, it may mean that no abnormal color difference area exists around the peripheral test area AA22b with relatively high color difference values. When the fourth retest result is obtained in S112, it may mean that an abnormal color difference area exists around the peripheral test area AA22b with relatively high color difference values.

[0173] Alternatively, S110 may be located after S108, for example, after completing S107, S108, and S109, S110, S111, and S112 may be performed. Alternatively, S110 may be located before S107, for example, after completing S110, S111, and S112, S107, S108, and S109 may be performed.

[0174] In some embodiments of the present application, the number of the peripheral re-measurement areas AA22c may be one or more, which is not specifically limited in the present application.

[0175] like Figure 10 As shown, in some optional embodiments, there are multiple peripheral retest areas AA22c, and the multiple peripheral retest areas AA22c are spaced around the peripheral test area AA22b corresponding to the second color difference being greater than the second warning color difference.

[0176] Optionally, a plurality of peripheral re-test areas AA22c may be arranged at equal intervals around the peripheral test area AA22b corresponding to the second color difference being greater than the second warning color difference.

[0177] Optionally, the distances between the plurality of peripheral re-measurement areas AA22c and the peripheral area AA22 may be approximately or equal.

[0178] Optionally, when there are multiple peripheral retest areas AA22c, a corresponding number of peripheral retest display parameters may be obtained, and each second retest color difference may be determined based on each peripheral retest display parameter. For example, the third retest result may be obtained only when all second retest color differences are no greater than the second preset color difference, and the fourth retest result may be obtained when at least one second retest color difference is greater than the second preset color difference.

[0179] In these optional embodiments, by setting the number of peripheral re-test areas AA22c to be multiple, the color difference test can be performed more fully on the sides of the peripheral test area AA22b with high color difference values, thereby facilitating a more accurate judgment on whether there is an abnormal color difference area in the adjacent position on the sides of the peripheral test area AA22b with high color difference values.

[0180] In some optional embodiments, the minimum distance between the peripheral retest area AA22c and the peripheral test area AA22b is not greater than the second preset distance.

[0181] Optionally, the second preset distance is not less than 1.2 mm and not more than 1.6 mm. Exemplarily, the first preset distance may be 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm or 1.6 mm.

[0182] In these optional embodiments, by reasonably setting the distance between the peripheral re-test area AA22c and the peripheral test area AA22b, color difference testing can be performed on the side of the peripheral test area AA22b that is relatively close to the color difference value. This makes it easier to accurately determine whether there is an abnormal color difference area in the vicinity of the peripheral test area AA22b that has a high color difference value.

[0183] Figure 11 2 is a schematic structural diagram of a display panel testing device 20 provided in an embodiment of the present application.

[0184] like Figure 11 As shown, an embodiment of the second aspect of the present application provides a display panel testing device 20.

[0185] The display panel testing device 20 can be used to test the display panel 10 in any of the aforementioned embodiments. The display panel 10 may have a first display area AA1 and a second display area AA2. The transmittance of the first display area AA1 is lower than that of the second display area AA2.

[0186] The display panel testing device 20 can also be used to implement the display panel testing method described in any of the aforementioned embodiments. Therefore, the display panel testing device 20 provided in the embodiment of the present application can have the beneficial effects of any of the display panel testing methods described in the aforementioned embodiments, and this application will not go into details here.

[0187] The display panel testing device 20 may include: a first acquisition module 21, used to obtain reference display parameters of the first display area AA1 when the display panel 10 displays a test image; a second acquisition module 22, used to obtain sampled display parameters of the second display area AA2 when the display panel 10 displays a test image; and a first determination module 23, used to determine the regional color difference between the sampled display parameters and the reference display parameters based on a preset color difference algorithm.

[0188] Optionally, the first acquisition module 21 may be configured to acquire reference display parameters of the first display test area AA1b when the display panel 10 displays a test image.

[0189] Optionally, the second acquisition module 22 may be configured to acquire the central display parameters of the central area AA21 when the display panel 10 displays a test image. Exemplarily, the second acquisition module 22 may be configured to acquire the central display parameters of the central test area AA21b when the display panel 10 displays a test image.

[0190] Optionally, the first determining module 23 may be configured to determine a first color difference between the center display parameter and the reference display parameter based on a preset color difference algorithm.

[0191] Optionally, the display panel testing device 20 may further include a third acquisition module, which may be configured to acquire peripheral display parameters of the peripheral area AA22 when the display panel 10 displays a test image. Exemplarily, the third acquisition module may be configured to acquire peripheral display parameters of the peripheral test area AA22b when the display panel 10 displays a test image.

[0192] Optionally, the display panel testing device 20 may further include a second determining module, which may be configured to determine a second color difference between the peripheral display parameter and the reference display parameter based on a preset color difference algorithm.

[0193] Optionally, the display panel testing device 20 may further include a first comparison module, which may be configured to compare the first color difference with a first preset color difference, and to compare the second color difference with a second preset color difference, wherein the second preset color difference is not greater than the first preset color difference;

[0194] When the first color difference is not greater than the first preset color difference, and the second color difference is not greater than the second preset color difference, obtaining a first test result;

[0195] In the case that the first color difference is greater than the first preset color difference, and / or the second color difference is greater than the second preset color difference, a second test result is obtained.

[0196] Optionally, the display panel testing device 20 may further include a fourth acquisition module, which is used to select at least one central re-test area AA21c in the central non-test area AA21a on the side of the central test area AA21b corresponding to the first color difference being greater than the first warning color difference, when the first color difference is less than the first preset color difference and the first color difference corresponding to at least one central test area AA21b is greater than the first warning color difference, and obtain the central re-test display parameters of the central re-test area AA21c, wherein the first warning color difference is less than the first preset color difference.

[0197] Optionally, the display panel testing device 20 may further include a third determining module, which may be configured to determine a first re-measured color difference between the central re-measured display parameter and the reference display parameter based on a preset color difference algorithm.

[0198] Optionally, the display panel testing device 20 may further include a second comparison module, which can be used to compare the first re-measured color difference with the first preset color difference, and obtain the first re-measurement result when the first re-measured color difference is not greater than the first preset color difference; and obtain the second re-measurement result when the first re-measured color difference is greater than the first preset color difference.

[0199] Optionally, the display panel testing device 20 may further include a fifth acquisition module, which may be used to select at least one peripheral retest area AA22c in the peripheral non-test area AA22a surrounding the peripheral test area AA22b corresponding to the second color difference being greater than the second warning color difference when the second color difference is less than the second preset color difference and the second color difference corresponding to at least one peripheral test area AA22b is greater than the second warning color difference, and obtain the peripheral retest display parameters of the peripheral retest area AA22c, wherein the second warning color difference is less than the second preset color difference.

[0200] Optionally, the display panel testing device 20 may further include a fourth determining module, which may be configured to determine a second remeasured color difference between the peripheral remeasured display parameter and the reference display parameter based on a preset color difference algorithm.

[0201] Optionally, the display panel testing device 20 may further include a third comparison module, which can be used to compare the second re-measured color difference with the second preset color difference. When the second re-measured color difference is not greater than the second preset color difference, a third re-measurement result is obtained; when the second re-measured color difference is greater than the second preset color difference, a fourth re-measurement result is obtained.

[0202] Figure 12 This is a structural diagram of an electronic device provided in an embodiment of the present application.

[0203] like Figure 12 As shown, an embodiment of the third aspect of the present application provides an electronic device, which includes: a processor 30, and a memory 31 storing computer program instructions; the processor 30 reads and executes the computer program instructions to implement the display panel testing method described in any of the aforementioned embodiments.

[0204] Optionally, the aforementioned processor 30 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0205] The memory 31 may include a large-capacity memory 31 for data or instructions. By way of example and not limitation, the memory 31 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory 31 may include removable or non-removable (or fixed) media. Where appropriate, the memory 31 may be internal or external to the integrated gateway disaster recovery device. In a specific embodiment, the memory 31 is a non-volatile solid-state memory.

[0206] The memory may include read-only memory (ROM), random access memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical, or other physical / tangible memory 31 storage devices. Thus, generally, the memory 31 includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors 30), it is operable to perform the operations described with reference to the method according to an aspect of the present disclosure.

[0207] The processor 30 implements any one of the data processing methods in the aforementioned embodiments by reading and executing computer program instructions stored in the memory 31 .

[0208] In one example, the electronic device may further include a communication interface and a bus 33. The processor 30, the memory 31, and the communication interface may be connected via the bus 33 and communicate with each other.

[0209] The communication interface is mainly used to realize the communication between the various modules, devices, units and / or equipment in the embodiments of the present application.

[0210] The bus 33 includes hardware, software, or both, and couples the components of the data processing device to each other. By way of example, and not limitation, the bus 33 may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industrial Standard Architecture (EISA) bus, a Front Side Bus (FSB), a HyperTransport (HT) interconnect, an Industrial Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses, or a combination of two or more of these. Where appropriate, the bus 33 may include one or more buses 33. Although the embodiments of the present application describe and illustrate a specific bus 33, the present application contemplates any suitable bus or interconnect.

[0211] The electronic device can execute the display panel testing method in the embodiment of the present application, thereby testing and obtaining the regional color difference between the first display area AA1 and the second display area AA2 with different transmittances in the display panel.

[0212] In addition, in combination with the display panel testing method in the aforementioned embodiment, the embodiment of the present application may provide a computer storage medium for implementation.

[0213] An embodiment of the fourth aspect of the present application provides a computer storage medium having computer program instructions stored thereon. When the computer program instructions are executed by the processor 30, the display panel testing method described in any of the aforementioned embodiments is implemented.

[0214] It should be understood that the present application is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted here. In the aforementioned embodiments, several specific steps are described and illustrated as examples. However, the method process of the present application is not limited to the specific steps described and illustrated. Those skilled in the art can make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present application.

[0215] The functional blocks shown in the block diagrams described above can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they may be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, and the like. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. Programs or code segments may be stored in a machine-readable medium or transmitted via a data signal carried in a carrier wave over a transmission medium or communication link. "Machine-readable medium" may include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, and the like. Code segments may be downloaded via a computer network such as the Internet or an intranet.

[0216] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the aforementioned steps. In other words, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0217] Aspects of the present disclosure have been described above with reference to flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each block in the flowcharts and / or block diagrams, as well as combinations of blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor 30 of a general-purpose computer, a special-purpose computer, or other programmable data processing device to produce a machine such that execution of these instructions by the processor 30 of the computer or other programmable data processing device enables the implementation of the functions / actions specified in one or more blocks in the flowcharts and / or block diagrams. Such a processor 30 can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field programmable logic circuit. It should also be understood that each block in the block diagrams and / or flowcharts, as well as combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by dedicated hardware that performs the specified functions or actions, or by a combination of dedicated hardware and computer instructions.

[0218] While the embodiments described above are not exhaustive, they do not limit the invention to specific embodiments. Clearly, numerous modifications and variations are possible based on the above description. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better utilize the present invention and its modifications. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A method for testing a display panel, characterized in that: The display panel has a first display area and a second display area, the second display area includes a central area and a peripheral area disposed between the central area and the first display area, the central area includes a central non-test area and at least one central test area, the transmittance of the first display area is lower than the transmittance of the second display area, and the display panel testing method includes: When the display panel displays a test image, obtaining reference display parameters of the first display area; When the display panel displays a test image, obtaining a sampled display parameter of the second display area; Determining a regional color difference between the sampled display parameter and the reference display parameter based on a preset color difference algorithm; The sampled display parameters include a central display parameter corresponding to the central area, and the regional color difference includes a first color difference corresponding to the central area; The display panel testing method further includes: acquiring peripheral display parameters of the peripheral area when the display panel displays a test image; determining a second color difference between the peripheral display parameter and the reference display parameter based on a preset color difference algorithm; After determining the second color difference between the peripheral display parameter and the reference display parameter based on the preset color difference algorithm, the method further includes: comparing the first color difference with a first preset color difference; The acquiring the sampling display parameters of the second display area includes: Selecting at least one central test area in the central area, and obtaining a central display parameter of the central test area; After comparing the first color difference with the first preset color difference, the method further includes: When the first color difference is smaller than the first preset color difference and the first color difference corresponding to at least one of the central test areas is larger than the first warning color difference, selecting at least one central retest area within the central non-test area surrounding the central test area corresponding to the first color difference being larger than the first warning color difference, and obtaining central retest display parameters of the central retest area, wherein the first warning color difference is smaller than the first preset color difference; A first remeasured color difference between the central remeasured display parameter and the reference display parameter is determined based on a preset color difference algorithm.

2. The method according to claim 1, characterized in that The comparing the first color difference with a first preset color difference includes: comparing the second color difference with a second preset color difference, wherein the second preset color difference is not greater than the first preset color difference; After determining the second color difference between the peripheral display parameter and the reference display parameter based on the preset color difference algorithm, the method further includes: When the first color difference is not greater than the first preset color difference, and the second color difference is not greater than the second preset color difference, obtaining a first test result; In a case where the first color difference is greater than the first preset color difference, and / or the second color difference is greater than the second preset color difference, a second test result is obtained.

3. The method according to claim 2, characterized in that The first preset color difference is not less than 6 and not more than 8, and / or the second preset color difference is not less than 6 and not more than 8.

4. The method according to claim 2, characterized in that The number of the peripheral areas is at least two, and at least two of the peripheral areas are nested in sequence. Among any two of the peripheral areas, the second preset color difference corresponding to the peripheral area close to the first display area is not greater than the second preset color difference corresponding to the peripheral area away from the first display area.

5. The method according to claim 1, wherein The first warning color difference is not less than 5 and not more than 6.

6. The method according to claim 1, characterized in that There are multiple central retest areas, and the multiple central retest areas are spaced apart around the central test area corresponding to the first color difference being greater than the first warning color difference.

7. The method according to claim 1, characterized in that The distance between the central re-test area and the central test area is no greater than a first preset distance, and the first preset distance is no less than 1.2 mm and no greater than 1.6 mm.

8. The method according to claim 3, characterized in that The peripheral area includes a peripheral non-test area and at least one peripheral test area, and obtaining the peripheral display parameters of the peripheral area includes: Selecting at least one peripheral test area in the peripheral area, and acquiring peripheral display parameters of the peripheral test area; After comparing the second color difference with the second preset color difference, the method further includes: When the second color difference is less than the second preset color difference, and the second color difference corresponding to at least one of the peripheral test areas is greater than the second warning color difference, selecting at least one peripheral retest area within the peripheral non-test area surrounding the peripheral test area corresponding to the second color difference being greater than the second warning color difference, and obtaining peripheral retest display parameters of the peripheral retest area, wherein the second warning color difference is less than the second preset color difference; A second remeasured color difference between the peripheral remeasured display parameter and the reference display parameter is determined based on a preset color difference algorithm.

9. The method according to claim 8, characterized in that The second warning color difference is not less than 5 and not more than 6.

10. The method according to claim 8, characterized in that There are multiple peripheral retest areas, and the multiple peripheral retest areas are spaced apart around the peripheral test area corresponding to the second color difference being greater than the second warning color difference.

11. The method according to claim 8, characterized in that The distance between the peripheral re-test area and the peripheral test area is no greater than a second preset distance, and the second preset distance is no less than 1.2 mm and no greater than 1.6 mm.

12. The method according to claim 1, characterized in that The peripheral area includes a peripheral non-test area and multiple peripheral test areas, and the multiple peripheral test areas are spaced apart around the central area. The obtaining of the peripheral display parameters of the peripheral area includes: At least one peripheral test area is selected from the peripheral area, and peripheral display parameters of the peripheral test area are acquired.

13. The method according to claim 1, wherein The first display area includes a first display non-test area and at least one first display test area, a distance between the first display test area and the second display area is no greater than a first preset distance, and the first preset distance is no less than 5 mm and no greater than 10 mm, and obtaining a reference display parameter of the first display area includes: At least one first display test area is selected in the first display area, and reference display parameters of the first display test area are obtained.

14. The method according to claim 1, wherein The reference display parameters include a first brightness , first red-green and the first yellow-blue saturation , the sampled display parameters include a second brightness , second red-green and the second yellow-blue shade , the determining the regional color difference between the sampled display parameter and the reference display parameter based on a preset color difference algorithm includes: The regional color difference is , .

15. The method according to any one of claims 1 to 14, characterized in that The display panel includes a substrate, an isolation structure, and a plurality of light-emitting devices. The isolation structure encloses a plurality of isolation openings, and the light-emitting devices are arranged corresponding to the isolation openings. The arrangement density of the light-emitting devices in the first display area is greater than the arrangement density of the light-emitting devices in the second display area, and / or the isolation structure in the second display area is provided with a light-transmitting opening.

16. A display panel testing device, characterized in that: The display panel has a first display area and a second display area, the second display area includes a central area and a peripheral area arranged between the central area and the first display area, the central area includes a central non-test area and at least one central test area, the transmittance of the first display area is lower than the transmittance of the second display area, and the display panel testing device includes: a first acquisition module, configured to acquire reference display parameters of the first display area when the display panel displays a test image; a second acquisition module, configured to acquire, when the display panel displays a test image, a sampling display parameter of the second display area, wherein the second acquisition module is configured to acquire, when the display panel displays a test image, a central display parameter of the central test area; a first determining module, configured to determine a regional color difference between the sampled display parameter and the reference display parameter based on a preset color difference algorithm, wherein the first determining module is configured to determine a first color difference between the central display parameter and the reference display parameter based on the preset color difference algorithm; A first comparison module, configured to compare the first color difference with a first preset color difference; a fourth acquisition module configured to, if the first color difference is less than the first preset color difference and the first color difference corresponding to at least one of the central test areas is greater than a first warning color difference, select at least one central retest area within the central non-test area surrounding the central test area corresponding to the first color difference greater than the first warning color difference, and acquire central retest display parameters of the central retest area, wherein the first warning color difference is less than the first preset color difference; A third determining module is configured to determine a first remeasured color difference between the central remeasured display parameter and the reference display parameter based on the preset color difference algorithm.

17. An electronic device, characterized in that: The electronic device includes: a processor and a memory storing computer program instructions; the processor reads and executes the computer program instructions to implement the display panel testing method according to any one of claims 1 to 15.

18. A computer storage medium, characterized in that The computer storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the display panel testing method according to any one of claims 1 to 15 is implemented.

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