A display panel detection method and device, storage medium and electronic device

Abstract

The present invention provides a detection method and device for a display panel, a storage medium and an electronic device. When the anode of a light-emitting element in a first sub-pixel covers the gate of a driving transistor in a second sub-pixel, the potential of the gate of the driving transistor in the second sub-pixel will be coupled when the potential of the anode of the light-emitting element in the first sub-pixel changes. When the grayscale displayed by the first sub-pixel changes and the grayscale displayed by the second sub-pixel remains unchanged, a grayscale transition color cross-talk phenomenon will occur. Therefore, in the early stage of designing the display panel, based on a newly designed pixel layout and the detection method, combined with the coverage area of ​​the anode of the light-emitting element in the first sub-pixel covering the gate of the driving transistor in the second sub-pixel in the pixel layout, the final display image quality capability of the display panel under the new design scheme can be detected.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and more specifically, to a display panel detection method and device, a storage medium and an electronic device. Background Art

[0002] With the continuous development of science and technology, modern society has entered the information age and is developing towards intelligence. Display is a key link in realizing information exchange and intelligence. Among the many display technologies currently available, OLED (Organic Light-Emitting Diode) display technology is considered to be a disruptive next-generation display technology. OLED display technology is a device that uses a multi-layer organic thin film structure to generate electroluminescence. Its manufacturing process is simple and only requires a relatively low driving voltage. These main features make OLED very prominent in meeting the application of display panels. Compared with LCD (Liquid Crystal Display) display panels, OLED display panels are lighter, brighter, have lower power consumption, faster response, higher clarity, better flexibility, and higher luminous efficiency, which can meet consumers' new demands for display technology.

[0003] However, existing display panels have certain limitations in the evaluation of new design solutions at the early stage of design, which means that the picture quality capabilities of the display panels of the new design solutions need to be confirmed based on the display effects of the final products. It is not possible to directly identify and evaluate the picture quality capabilities of the display panels of the new design solutions at the early stage of design, which is very time-consuming. Summary of the invention

[0004] In view of this, in order to solve the above problems, the present invention provides a display panel detection method and device, a storage medium and an electronic device, and the technical solution is as follows:

[0005] A detection method for a display panel, wherein the display panel comprises a plurality of sub-pixels, wherein the sub-pixels comprise: a pixel circuit and a light-emitting element, wherein the pixel circuit comprises a driving transistor, wherein the driving transistor is used to provide a driving current for the light-emitting element, and the light-emitting element emits light in response to the driving current;

[0006] The detection method comprises:

[0007] Acquire parameter information between any two sub-pixels with different luminous colors, the parameter information including a coverage area of ​​an anode of a light-emitting element in a first sub-pixel covering a gate of a driving transistor in a second sub-pixel; the coverage area is an area of ​​an overlapping region between an orthographic projection of the anode of the light-emitting element and an orthographic projection of the gate of the driving transistor in a direction perpendicular to a plane where the display panel is located;

[0008] Based on the parameter information, a display state of the display panel is determined.

[0009] The present invention also provides a detection device for a display panel, wherein the display panel includes a plurality of sub-pixels, wherein the sub-pixels include: a pixel circuit and a light-emitting element, wherein the pixel circuit includes a driving transistor, wherein the driving transistor is used to provide a driving current for the light-emitting element, and the light-emitting element emits light in response to the driving current;

[0010] The detection device comprises:

[0011] an acquisition module, used to acquire parameter information between any two sub-pixels with different luminous colors, the parameter information including a coverage area of ​​an anode of a light-emitting element in a first sub-pixel covering a gate of a driving transistor in a second sub-pixel; the coverage area is an area of ​​an overlapping region between an orthographic projection of the anode of the light-emitting element and an orthographic projection of the gate of the driving transistor in a direction perpendicular to a plane where the display panel is located;

[0012] A determination module is used to determine the display state of the display panel based on the parameter information.

[0013] The present invention also provides a computer-readable storage medium, in which computer-executable instructions are stored, and the computer-executable instructions are used to execute the above detection method.

[0014] The present invention also provides an electronic device, characterized in that the electronic device comprises: at least one processor, and at least one memory and a bus connected to the processor;

[0015] Wherein, the processor and the memory communicate with each other through the bus;

[0016] The processor is used to call the program instructions in the memory to execute the above detection method.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a detection method for a display panel. When the anode of a light-emitting element in a first sub-pixel covers the gate of a driving transistor in a second sub-pixel, the potential of the gate of the driving transistor in the second sub-pixel will be coupled when the potential of the anode of the light-emitting element in the first sub-pixel changes. Then, when the grayscale displayed by the first sub-pixel changes and the grayscale displayed by the second sub-pixel remains unchanged, a grayscale transition color cross-talk phenomenon will occur. Therefore, in the early stage of designing the display panel, based on the newly designed pixel layout and the detection method, combined with the coverage area of ​​the anode of the light-emitting element in the first sub-pixel covering the gate of the driving transistor in the second sub-pixel in the pixel layout, the final display image quality capability of the display panel under the new design scheme can be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of a circuit structure of a sub-pixel provided by an embodiment of the present invention;

[0022] Figure 3 A schematic flow chart of a method for detecting a display panel provided by an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of a sub-pixel layout provided by an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of a case where the anode of a light-emitting element in one of two sub-pixels provided in an embodiment of the present invention covers the gate of a driving transistor in another sub-pixel;

[0025] Figure 6 A schematic flow chart of another display panel detection method provided by an embodiment of the present invention;

[0026] Figure 7 A schematic flow chart of another display panel detection method provided by an embodiment of the present invention;

[0027] Figure 8 A schematic flow chart of another display panel detection method provided by an embodiment of the present invention;

[0028] Fig. 9 A schematic flow chart of another display panel detection method provided by an embodiment of the present invention;

[0029] Fig.10 A schematic diagram of the principle structure of a display panel detection device provided by an embodiment of the present invention;

[0030] Fig.11 A schematic diagram of the hardware architecture of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] refer to Figure 1 , Figure 1 A structural schematic diagram of a display panel provided in an embodiment of the present invention, wherein the display panel includes a plurality of sub-pixels 11. In order to achieve full-color display of the display panel, the plurality of sub-pixels 11 may optionally include sub-pixels for emitting green light, sub-pixels for emitting blue light, and sub-pixels for emitting red light.

[0034] refer to Figure 2 , Figure 2 A schematic diagram of a circuit structure of a sub-pixel provided in an embodiment of the present invention, the sub-pixel 11 includes: a pixel circuit 12 and a light-emitting element Q, the pixel circuit 12 includes a driving transistor M1 and a switching transistor (M2-M7), the driving transistor M1 is used to provide a driving current for the light-emitting element Q, and the light-emitting element Q emits light in response to the driving current.

[0035] Specifically, each sub-pixel 11 in the display panel needs to emit light, and needs to be controlled by a pixel circuit 12 composed of a thin film transistor and other components integrated on the sub-pixel 11; it should be noted that in the embodiment of the present invention, only a 7T1C pixel circuit form is used as an example for explanation, and it is not limited in the embodiment of the present invention. The form of the pixel circuit can also be other forms of pixel circuits. For example, the number of transistors in the pixel circuit is not limited to 7, the capacitor in the pixel circuit is not limited to 1, and the connection method of the thin film transistor and the connection method of the capacitor in the pixel circuit is not limited to Figure 2As shown, the thin film transistors in the embodiment of the present invention are not limited to all being P-type transistors, but may all be N-type transistors, or some may be P-type transistors and some may be N-type transistors.

[0036] refer to Figure 3 , Figure 3 A flow chart of a method for detecting a display panel provided by an embodiment of the present invention, the method comprising:

[0037] S101: Obtain parameter information between any two sub-pixels with different luminous colors, the parameter information including the coverage area of ​​the anode of the light-emitting element in the first sub-pixel covering the gate of the driving transistor in the second sub-pixel; the coverage area is the area of ​​the overlapping area between the orthographic projection of the anode of the light-emitting element and the orthographic projection of the gate of the driving transistor in a direction perpendicular to the plane where the display panel is located.

[0038] S102: Determine a display state of the display panel based on the parameter information.

[0039] Specifically, in the embodiments of the present invention, refer to Figure 4 , Figure 4 A schematic diagram of a sub-pixel layout provided by an embodiment of the present invention, wherein the area indicated by the dashed box 13 is the area that can be affected by the gate of the driving transistor in the sub-pixel, Figure 5 , Figure 5 A schematic diagram of a light emitting element in one of two sub-pixels provided in an embodiment of the present invention, wherein the anode of the light emitting element in one sub-pixel covers the gate of the driving transistor in another sub-pixel, that is, Figure 5 The schematic diagram of the area indicated by the middle number 14 covering the area indicated by the number 13, in the OLED pixel arrangement, whether it is the RGB Delta arrangement or the RGBG Pentile arrangement, the anode of the light-emitting element in the sub-pixel will block part of the pixel circuit structure according to factors such as the light sensitivity and transmittance of the TFT (Thin Film Transistor), but in the invention process of the present invention, it is found that when the anode of the light-emitting element in the first sub-pixel covers the gate of the driving transistor in the second sub-pixel, when the potential of the anode of the light-emitting element in the first sub-pixel changes, it will couple the potential of the gate of the driving transistor in the second sub-pixel; then when the grayscale displayed by the first sub-pixel changes and the grayscale displayed by the second sub-pixel remains unchanged, the phenomenon of grayscale transition color cross-talk will occur.

[0040] Therefore, in the early stage of designing the display panel, based on the newly designed pixel layout and the detection method, combined with the coverage area of ​​the anode of the light-emitting element in the first sub-pixel covering the gate of the driving transistor in the second sub-pixel in the pixel layout, the final display image quality capability of the display panel under the new design can be detected.

[0041] That is to say, in the early stage of designing the display panel, the coverage area of ​​the anode and the gate between different sub-pixels in the pixel layout is calculated or simulated, and based on the results, the image quality of the grayscale transition picture of the display panel of the new design can be detected, and the image quality display capability of the display panel of the new design in special pictures such as the grayscale transition of the whole machine can be accurately detected.

[0042] It should be noted that the embodiments of the present invention include but are not limited to using software such as EDA (Electronic Design Automation) in combination with devices such as an optical microscope to measure and calculate the coverage area.

[0043] Optionally, in another embodiment of the present invention, refer to Figure 6 , Figure 6 A flow chart of another display panel detection method provided by an embodiment of the present invention, wherein one possible implementation of "determining the display state of the display panel based on the parameter information" in step S102 is:

[0044] S1021: Based on the parameter information, determine whether the coverage area is zero.

[0045] S1022: If the coverage area is zero, determine that the display state of the display panel is a normal display state.

[0046] Specifically, in an embodiment of the present invention, when the coverage area between the anode of the light-emitting element in the first sub-pixel and the gate of the driving transistor in the second sub-pixel of two sub-pixels with different luminous colors is zero, it means that in the direction perpendicular to the plane where the display panel is located, there is no overlapping area between the positive projection of the anode of the light-emitting element in the first sub-pixel and the positive projection of the gate of the driving transistor in the second sub-pixel. Obviously, the potentials between the two will not affect each other, that is, when the potential of the anode of the light-emitting element in the first sub-pixel changes, it will not affect the potential of the gate of the driving transistor in the second sub-pixel, or it can be said that the impact on the potential of the gate of the driving transistor in the second sub-pixel is negligible. At this time, it can be shown that this design has almost no impact or little impact on the image quality of the display panel, which can indicate that the display state of the display panel under the new design scheme is a normal display state.

[0047] Optionally, in another embodiment of the present invention, the display panel includes a first sub-pixel, a second sub-pixel and a third sub-pixel having different luminous colors, and the luminous efficiency of the first sub-pixel is greater than the luminous efficiency of the second sub-pixel, which is greater than the luminous efficiency of the third sub-pixel.

[0048] refer to Figure 7 , Figure 7A schematic flow chart of another display panel detection method provided by an embodiment of the present invention, wherein the detection method further includes:

[0049] S1023: If the coverage area is not zero, determine whether the first sub-pixel is the third sub-pixel.

[0050] S1024: If the first sub-pixel is not the third sub-pixel, determining that the display state of the display panel is a normal display state.

[0051] Specifically, in the embodiment of the present invention, the first sub-pixel is a green sub-pixel, the second sub-pixel is a red sub-pixel, and the third sub-pixel is a blue sub-pixel, wherein the green sub-pixel is used to emit green light, the red sub-pixel is used to emit red light, and the blue sub-pixel is used to emit blue light, and the area of ​​the corresponding blue sub-pixel is larger than the area of ​​the red sub-pixel, which is larger than the area of ​​the green sub-pixel. When the anode of the light-emitting element in the blue sub-pixel covers the gate of the driving transistor in other sub-pixels, when the grayscale of the blue sub-pixel changes and the grayscale of other sub-pixels remains unchanged, the picture display transition will be uneven due to coupling.

[0052] That is to say, the anode of the light-emitting element in the blue sub-pixel covers the gate of the driving transistor in the green sub-pixel or the red sub-pixel, which will cause the potential of the anode of the light-emitting element in the blue sub-pixel to couple the potential of the gate of the driving transistor in the green sub-pixel or the red sub-pixel when the potential of the anode changes; for example, when the grayscale displayed by the green sub-pixel or the red sub-pixel is fixed, when the grayscale displayed by the blue sub-pixel increases, the potential of the anode of the light-emitting element in the blue sub-pixel will gradually increase, which will cause the potential of the gate of the driving transistor in the green sub-pixel or the red sub-pixel to increase, thereby reducing the brightness.

[0053] It should be noted that, through many experiments and evaluations, it is known that the situation in which the anode of the light-emitting element in the blue sub-pixel covers the gate of the driving transistor in other sub-pixels and the size of the coverage area will affect the display quality of the display panel. Although the gates of the driving transistors between other sub-pixels cover each other, it also has some impact on the display quality of the display panel, but it is negligible. After experimental evaluation, the impact on the display quality is not as great as the situation in which the anode of the light-emitting element in the blue sub-pixel covers the gate of the driving transistor in other sub-pixels. Furthermore, the situation in which the anode of the light-emitting element in the blue sub-pixel covers the gate of the driving transistor in the green sub-pixel and the size of the coverage area have the greatest impact on the display quality of the display panel. The situation in which the anode of the light-emitting element in the blue sub-pixel covers the gate of the driving transistor in the red sub-pixel and the size of the coverage area also have some impact on the display quality of the display panel, but it is negligible.

[0054] Furthermore, when the coverage area between the anode of the light-emitting element in the first sub-pixel and the gate of the driving transistor in the second sub-pixel of two sub-pixels with different luminous colors is not zero, it means that in the direction perpendicular to the plane where the display panel is located, there is an overlapping area between the orthographic projection of the anode of the light-emitting element in the first sub-pixel and the orthographic projection of the gate of the driving transistor in the second sub-pixel, and it is obvious that the potentials between the two will affect each other.

[0055] At this time, if the first sub-pixel is not the third sub-pixel, that is, the first sub-pixel is not a blue sub-pixel, it means that the first sub-pixel is a red sub-pixel or a green sub-pixel, that is, at this time, the anode of the light-emitting element in the red sub-pixel covers the gate of the driving transistor in other sub-pixels, or the anode of the light-emitting element in the green sub-pixel covers the gate of the driving transistor in other sub-pixels. From the above description, it can be seen that this covering situation has almost no effect or little effect on the display quality of the display panel, which indicates that the display state of the display panel under the new design scheme is a normal display state.

[0056] Optionally, in another embodiment of the present invention, refer to Figure 8 , Figure 8 A schematic flow chart of another display panel detection method provided by an embodiment of the present invention, wherein the detection method further includes:

[0057] S1025: If the first sub-pixel is the third sub-pixel, determine whether the second sub-pixel is the second sub-pixel.

[0058] S1026: If the second sub-pixel is the second sub-pixel, determining that the display state of the display panel is a normal display state.

[0059] Specifically, in the embodiment of the present invention, if the first sub-pixel is the third sub-pixel, it means that the first sub-pixel is a blue sub-pixel at this time, that is, at this time the anode of the light-emitting element in the blue sub-pixel covers the gate of the driving transistor in other sub-pixels. Since the blue sub-pixel covers other different sub-pixels and has different effects on the image quality of the display panel, after determining that the first sub-pixel is a blue sub-pixel, it is necessary to further confirm the light-emitting color of the second sub-pixel. When the second sub-pixel is determined to be the second sub-pixel, it means that the second sub-pixel is a red sub-pixel. From the above description, it can be seen that when the anode of the light-emitting element in the blue sub-pixel covers the gate of the driving transistor in the red sub-pixel and the size of the covering area, although the display quality of the display panel is affected, they are very small, which means that the display state of the display panel under the new design scheme is a normal display state.

[0060] Optionally, in another embodiment of the present invention, refer to Fig. 9 , Fig. 9A schematic flow chart of another display panel detection method provided by an embodiment of the present invention, wherein the detection method further includes:

[0061] S1027: If the second sub-pixel is not the second sub-pixel, determine whether the ratio of the coverage area to the first area is greater than a set threshold, the first area being the positive projection area of ​​the gate of the driving transistor in the second sub-pixel in a direction perpendicular to the plane where the display panel is located.

[0062] S1028: If the ratio of the coverage area to the first area is not greater than the set threshold, determining that the display state of the display panel is a normal display state.

[0063] S1029: If the ratio of the coverage area to the first area is greater than the set threshold, determining that the display state of the display panel is an abnormal display state.

[0064] Specifically, in the embodiment of the present invention, if the first sub-pixel is the third sub-pixel, it means that the first sub-pixel is a blue sub-pixel at this time, that is, at this time the anode of the light-emitting element in the blue sub-pixel covers the gate of the driving transistor in other sub-pixels. Since the blue sub-pixel covers other different sub-pixels and has different effects on the image quality of the display panel, after determining that the first sub-pixel is a blue sub-pixel, it is necessary to further confirm the light-emitting color of the second sub-pixel. When it is determined that the second sub-pixel is not the second sub-pixel, it means that the second sub-pixel is a green sub-pixel at this time. From the above description, it can be seen that when the anode of the light-emitting element in the blue sub-pixel covers the gate of the driving transistor in the green sub-pixel and the size of the covering area have the greatest impact on the display quality of the display panel.

[0065] Therefore, in the embodiment of the present invention, it is necessary to further determine the coverage area of ​​the gate of the driving transistor in the green sub-pixel covered by the anode of the light-emitting element in the blue sub-pixel, that is, it is necessary to further determine how much area of ​​the gate of the driving transistor in the green sub-pixel is covered by the anode of the light-emitting element in the blue sub-pixel. When the coverage ratio is less than or equal to the set threshold, although it will also affect the display quality of the display panel, it is very small, which means that the display state of the display panel under the new design scheme is a normal display state; when the coverage ratio is greater than the set threshold, that is, it will greatly affect the display quality of the display panel, which means that the display state of the display panel under the new design scheme is an abnormal display state.

[0066] For example, the set threshold is 80%, which means that the larger the coverage area between the anode of the light-emitting element in the blue sub-pixel and the gate of the driving transistor in the green sub-pixel, the stronger the coupling between the two. Obviously, the influence of the potential between the two is greater, and ultimately the display quality of the display panel is greatly affected.

[0067] Optionally, based on the above embodiment of the present invention, another embodiment of the present invention further provides a detection device for a display panel, referring to Fig.10 , Fig.10 A schematic diagram of the principle structure of a detection device for a display panel provided in an embodiment of the present invention, wherein the display panel includes a plurality of sub-pixels, wherein the sub-pixels include: a pixel circuit and a light-emitting element, wherein the pixel circuit includes a driving transistor, wherein the driving transistor is used to provide a driving current for the light-emitting element, and the light-emitting element emits light in response to the driving current;

[0068] The detection device comprises:

[0069] The acquisition module 15 is used to obtain parameter information between any two sub-pixels with different luminous colors, and the parameter information includes the coverage area of ​​the anode of the light-emitting element in the first sub-pixel covering the gate of the driving transistor in the second sub-pixel; the coverage area is the area of ​​the overlapping area between the orthographic projection of the anode of the light-emitting element and the orthographic projection of the gate of the driving transistor in the direction perpendicular to the plane where the display panel is located.

[0070] The determination module 16 is configured to determine the display state of the display panel based on the parameter information.

[0071] Optionally, the determining module 16 is specifically configured to:

[0072] Based on the parameter information, it is determined whether the coverage area is zero.

[0073] If the coverage area is zero, it is determined that the display state of the display panel is a normal display state.

[0074] Optionally, the display panel includes a first sub-pixel, a second sub-pixel and a third sub-pixel having different luminous colors, and a luminous efficiency of the first sub-pixel is greater than a luminous efficiency of the second sub-pixel, which is greater than a luminous efficiency of the third sub-pixel.

[0075] The determining module 16 is further used for:

[0076] If the coverage area is not zero, it is determined whether the first sub-pixel is the third sub-pixel.

[0077] If the first sub-pixel is not the third sub-pixel, it is determined that the display state of the display panel is a normal display state.

[0078] Optionally, the determining module 16 is further configured to:

[0079] If the first sub-pixel is the third sub-pixel, it is determined whether the second sub-pixel is the second sub-pixel.

[0080] If the second sub-pixel is the second sub-pixel, it is determined that the display state of the display panel is a normal display state.

[0081] Optionally, the determining module 16 is further configured to:

[0082] If the second sub-pixel is not the second sub-pixel, determine whether the ratio of the coverage area to the first area is greater than a set threshold, and the first area is the positive projection area of ​​the gate of the driving transistor in the second sub-pixel in a direction perpendicular to the plane where the display panel is located.

[0083] If the ratio of the coverage area to the first area is not greater than the set threshold, it is determined that the display state of the display panel is a normal display state.

[0084] If the ratio of the covered area to the first area is greater than the set threshold, it is determined that the display state of the display panel is an abnormal display state.

[0085] Optionally, the first sub-pixel emits red light, the second sub-pixel emits green light, and the third sub-pixel emits blue light.

[0086] It should be noted that the principle of the detection device provided in the embodiment of the present invention is the same as the principle of the detection method provided in the above embodiment of the present invention, and will not be repeated here.

[0087] Optionally, in another embodiment of the present invention, a computer-readable storage medium is provided, in which computer-executable instructions are stored, and the computer-executable instructions are used to execute the detection method described in the above embodiment.

[0088] Optionally, in another embodiment of the present invention, an electronic device is provided, referring to Fig.11 , Fig.11 A schematic diagram of the hardware architecture of an electronic device provided by an embodiment of the present invention.

[0089] The electronic device includes: at least one processor 21 , and at least one memory 22 and a bus 23 connected to the processor 21 .

[0090] The processor 21 and the memory 22 communicate with each other via the bus 23 .

[0091] The processor 21 is used to call the program instructions in the memory 22 to execute the detection method described in the above embodiment.

[0092] The above is a detailed introduction to a display panel detection method and device, a storage medium and an electronic device provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

[0093] It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.

[0094] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device that includes a series of elements is inherent to the elements, or also includes elements inherent to these processes, methods, articles or devices. In the absence of further restrictions, the elements defined by the sentence "including a..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0095] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for detecting a display panel, characterized in that: The display panel includes a plurality of sub-pixels, each of which includes: a pixel circuit and a light-emitting element, the pixel circuit includes a driving transistor, the driving transistor is used to provide a driving current for the light-emitting element, and the light-emitting element emits light in response to the driving current; The detection method comprises: Acquire parameter information between any two sub-pixels with different luminous colors, the parameter information including a coverage area of ​​an anode of a light-emitting element in a first sub-pixel covering a gate of a driving transistor in a second sub-pixel; the coverage area is an area of ​​an overlapping region between an orthographic projection of the anode of the light-emitting element and an orthographic projection of the gate of the driving transistor in a direction perpendicular to a plane where the display panel is located; Based on the parameter information, a display state of the display panel is determined.

2. The detection method according to claim 1, characterized in that: The determining the display state of the display panel based on the parameter information includes: Based on the parameter information, determining whether the coverage area is zero; If the coverage area is zero, it is determined that the display state of the display panel is a normal display state.

3. The detection method according to claim 2, characterized in that: The display panel comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, each emitting light of different colors, wherein the light emission efficiency of the first sub-pixel is greater than the light emission efficiency of the second sub-pixel, and the light emission efficiency of the third sub-pixel; The detection method further comprises: If the coverage area is not zero, determining whether the first sub-pixel is the third sub-pixel; If the first sub-pixel is not the third sub-pixel, it is determined that the display state of the display panel is a normal display state.

4. The detection method according to claim 3, characterized in that: The detection method further comprises: If the first sub-pixel is the third sub-pixel, determining whether the second sub-pixel is the second sub-pixel; If the second sub-pixel is the second sub-pixel, it is determined that the display state of the display panel is a normal display state.

5. The detection method according to claim 4, characterized in that: The detection method further comprises: If the second sub-pixel is not the second sub-pixel, determining whether the ratio of the coverage area to the first area is greater than a set threshold, the first area being an orthographic projection area of ​​the gate of the driving transistor in the second sub-pixel in a direction perpendicular to the plane where the display panel is located; If the ratio of the coverage area to the first area is not greater than the set threshold, determining that the display state of the display panel is a normal display state; If the ratio of the covered area to the first area is greater than the set threshold, it is determined that the display state of the display panel is an abnormal display state.

6. The detection method according to claim 5, characterized in that: The first sub-pixel emits red light, the second sub-pixel emits green light, and the third sub-pixel emits blue light.

7. A display panel detection device, characterized in that: The display panel includes a plurality of sub-pixels, each of which includes: a pixel circuit and a light-emitting element, the pixel circuit includes a driving transistor, the driving transistor is used to provide a driving current for the light-emitting element, and the light-emitting element emits light in response to the driving current; The detection device comprises: an acquisition module, used to acquire parameter information between any two sub-pixels with different luminous colors, the parameter information including a coverage area of ​​an anode of a light-emitting element in a first sub-pixel covering a gate of a driving transistor in a second sub-pixel; the coverage area is an area of ​​an overlapping region between an orthographic projection of the anode of the light-emitting element and an orthographic projection of the gate of the driving transistor in a direction perpendicular to a plane where the display panel is located; A determination module is used to determine the display state of the display panel based on the parameter information.

8. The detection device according to claim 7, characterized in that: The determination module is specifically used for: Based on the parameter information, determining whether the coverage area is zero; If the coverage area is zero, it is determined that the display state of the display panel is a normal display state.

9. The detection device according to claim 8, characterized in that: The display panel comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, each emitting light of different colors, wherein the light emission efficiency of the first sub-pixel is greater than the light emission efficiency of the second sub-pixel, and the light emission efficiency of the third sub-pixel; The determining module is also used for: If the coverage area is not zero, determining whether the first sub-pixel is the third sub-pixel; If the first sub-pixel is not the third sub-pixel, it is determined that the display state of the display panel is a normal display state.

10. The detection device according to claim 9, characterized in that: The determining module is also used for: If the first sub-pixel is the third sub-pixel, determining whether the second sub-pixel is the second sub-pixel; If the second sub-pixel is the second sub-pixel, it is determined that the display state of the display panel is a normal display state.

11. The detection device according to claim 10, characterized in that: The determining module is also used for: If the second sub-pixel is not the second sub-pixel, determining whether the ratio of the coverage area to the first area is greater than a set threshold, the first area being an orthographic projection area of ​​the gate of the driving transistor in the second sub-pixel in a direction perpendicular to the plane where the display panel is located; If the ratio of the coverage area to the first area is not greater than the set threshold, determining that the display state of the display panel is a normal display state; If the ratio of the covered area to the first area is greater than the set threshold, it is determined that the display state of the display panel is an abnormal display state.

12. The detection device according to claim 11, characterized in that: The first sub-pixel emits red light, the second sub-pixel emits green light, and the third sub-pixel emits blue light.

13. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to execute the detection method described in any one of claims 1-6.

14. An electronic device, characterized in that: The electronic device comprises: at least one processor, and at least one memory and a bus connected to the processor; Wherein, the processor and the memory communicate with each other through the bus; The processor is used to call the program instructions in the memory to execute the detection method described in any one of claims 1-6.

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