Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a substrate and a photosensitive device located on the substrate, the display panel is provided with a first display area, and the orthographic projection of the first display area on the substrate and the orthographic projection of the photosensitive device on the substrate are at least partially overlapped; the first display area comprises at least two light-sensitive sub-areas, and the transmittance of the light-sensitive sub-area is higher when the distance between the light-sensitive sub-area and the edge of the light-sensitive device is smaller. The sensing sensitivity of the photosensitive device can be improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] With the development of display technology, display panels usually include photosensitive devices, which can absorb ambient light and start when the amount of ambient light absorbed reaches a threshold of the photosensitive device.

[0003] However, in practical applications, the problem of poor sensing sensitivity of photosensitive devices often occurs. Summary of the invention

[0004] Based on this, it is necessary to provide a display panel and a display device that can improve the poor sensing sensitivity of the photosensitive device in order to solve the above technical problems.

[0005] A display panel, comprising a substrate and a photosensitive device on the substrate, wherein the display panel has a first display area, and an orthographic projection of the first display area on the substrate at least partially overlaps with an orthographic projection of the photosensitive device on the substrate;

[0006] The first display area includes at least two photosensitive sub-areas, and the smaller the distance between the photosensitive sub-area and the edge of the photosensitive device is, the greater the transmittance is.

[0007] In one embodiment, the display panel has a second display area at least partially surrounding the first display area, and the transmittance of the first display area is greater than the transmittance of the second display area.

[0008] The at least two photosensitive sub-areas are arranged in a ring in sequence, and the closer the photosensitive sub-area is to the second display area, the smaller the distance to the edge of the photosensitive device is, and the greater the transmittance is;

[0009] Optionally, the at least two photosensitive sub-areas include a first sub-area and at least one annular sub-area surrounding the first sub-area;

[0010] Optionally, the annular sub-region includes a second sub-region, and the transmittance of the first sub-region is less than the transmittance of the second sub-region;

[0011] Optionally, the distance from the centroid of the first display area to the first sub-area is smaller than the distance from the center of the first display area to the second sub-area;

[0012] Optionally, the centroid of the first sub-area coincides with the centroid of the first display area;

[0013] Optionally, the orthographic projection of the photosensitive device on the substrate includes a central area, and the centroid of the central area coincides with the centroid of the first sub-area;

[0014] Optionally, the orthographic projection of the first sub-area on the substrate covers the orthographic projection of the central area on the substrate;

[0015] Optionally, the orthographic projection of the first sub-area on the substrate coincides with the orthographic projection of the central area on the substrate;

[0016] Optionally, the orthographic projection of the first display area on the substrate coincides with the orthographic projection of the photosensitive device on the substrate;

[0017] Optionally, the annular sub-area includes a third sub-area and a fourth sub-area, the third sub-area is arranged around the second sub-area, and the fourth sub-area is arranged around the third sub-area;

[0018] Optionally, the shape of the first sub-area is the same as the shape of the first display area;

[0019] Optionally, the inner edge of the second sub-area coincides with the edge of the first sub-area, the inner edge of the third sub-area coincides with the outer edge of the second sub-area, and the outer edge of the third sub-area coincides with the inner edge of the fourth sub-area;

[0020] Optionally, an outer edge of the fourth sub-area coincides with an edge of the first display area;

[0021] Optionally, the shape of the first display area is circular, square or triangular.

[0022] In one embodiment, the display panel further includes:

[0023] An isolation structure is located on a side of the photosensitive device away from the substrate, at least a portion of the isolation structure surrounds the isolation opening, and in the first display area, at least a portion of the isolation structure surrounds the photosensitive opening;

[0024] a light emitting device, at least partially located in the isolation opening;

[0025] Optionally, the display panel also includes a pixel definition layer, which is located on a side of the isolation structure close to the photosensitive device, and the pixel definition layer is arranged to form a pixel opening, the pixel opening is connected to the isolation opening, and the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the isolation opening on the substrate.

[0026] In one embodiment, the display panel has a second display area at least partially surrounding the first display area, and the transmittance of the first display area is greater than the transmittance of the second display area.

[0027] The areas of the orthographic projections of the photosensitive openings in the same photosensitive sub-region on the substrate are equal, the at least two photosensitive sub-regions are arranged in a ring in sequence, and the closer the photosensitive sub-region is to the second display region, the larger the area of ​​the photosensitive opening is;

[0028] Optionally, the at least two photosensitive sub-areas include a first sub-area and a second sub-area, a third sub-area and a fourth sub-area sequentially arranged around the first sub-area,

[0029] The first sub-area is provided with a first photosensitive opening, and / or the second sub-area is provided with a second photosensitive opening, and / or the third sub-area is provided with a third photosensitive opening, and / or the fourth sub-area is provided with a fourth photosensitive opening;

[0030] Optionally, the area of ​​the orthographic projection of the first photosensitive opening on the substrate is smaller than the area of ​​the orthographic projection of the second photosensitive opening on the substrate, and / or the area of ​​the orthographic projection of the second photosensitive opening on the substrate is smaller than the area of ​​the orthographic projection of the third photosensitive opening on the substrate, and / or the area of ​​the orthographic projection of the third photosensitive opening on the substrate is smaller than the area of ​​the orthographic projection of the fourth photosensitive opening on the substrate.

[0031] In one embodiment, the light emitting device includes a first color device, a second color device and a third color device, the isolation opening includes a first opening, a second opening and a third opening, the first color device is at least partially located in the first opening, the second color device is at least partially located in the second opening, and the third color device is at least partially located in the third opening.

[0032] In the at least two photosensitive sub-regions, the first opening has the same shape and area; in the at least two photosensitive sub-regions, the second opening has the same shape and area; in the at least two photosensitive sub-regions, the third opening has the same shape and area;

[0033] The at least two photosensitive sub-areas are arranged in a ring in sequence;

[0034] In different photosensitive sub-areas, the areas of the photosensitive openings located at the same position of the first opening increase from inside to outside; and / or, in different photosensitive sub-areas, the areas of the photosensitive openings located at the same position of the second opening increase from inside to outside; and / or, in different photosensitive sub-areas, the areas of the photosensitive openings located at the same position of the third opening increase from inside to outside;

[0035] Optionally, the at least two photosensitive sub-areas include a first sub-area and a second sub-area, a third sub-area and a fourth sub-area sequentially arranged around the first sub-area,

[0036] In the first sub-zone, the second sub-zone, the third sub-zone and the fourth sub-zone, the area of ​​the photosensitive openings located at the same position of the first opening increases successively; and / or, in the first sub-zone, the second sub-zone, the third sub-zone and the fourth sub-zone, the area of ​​the photosensitive openings located at the same position of the second opening increases successively; and / or, in the first sub-zone, the second sub-zone, the third sub-zone and the fourth sub-zone, the area of ​​the photosensitive openings located at the same position of the third opening increases successively.

[0037] In one embodiment, the display panel further includes:

[0038] A touch control wiring, the touch control wiring is located on a side of the substrate away from the photosensitive device;

[0039] Optionally, the touch control wiring is located on a side of the isolation structure away from the photosensitive device, and an orthographic projection of the touch control wiring on the substrate is located within an orthographic projection of the isolation structure on the substrate;

[0040] The line width of the touch lines of the at least two photosensitive sub-areas gradually decreases from the inside to the outside;

[0041] Optionally, the at least two photosensitive sub-areas include a first sub-area and a second sub-area, a third sub-area and a fourth sub-area sequentially arranged around the first sub-area,

[0042] The first sub-area is provided with a first touch line, and / or the second sub-area is provided with a second touch line, and / or the third sub-area is provided with a third touch line, and / or the fourth sub-area is provided with a fourth touch line;

[0043] Optionally, the line width of the first touch line is greater than the line width of the second touch line, and / or the line width of the second touch line is greater than the line width of the third touch line, and / or the line width of the third touch line is greater than the line width of the fourth touch line.

[0044] In one embodiment, the touch lines in the same photosensitive sub-area have the same line width.

[0045] In the above-mentioned display panel, the transmittance of at least two photosensitive areas gradually increases from the inside to the outside, thereby effectively compensating for the defect of weak light absorption ability at the edge of the photosensitive device, and effectively increasing the amount of light absorbed at the edge of the photosensitive device and the total amount of light absorbed, thereby making the photosensitive device easier to start, thereby increasing the sensing sensitivity difference of the photosensitive device.

[0046] At the same time, in some embodiments, when the number of photosensitive sub-regions is at least three, the transmittance of each photosensitive sub-region changes in a gradual form, so that the size of the structure affecting the transmittance in each photosensitive sub-region can be gradually changed, thereby reducing the etching load effect during the preparation of the structure affecting the transmittance, thereby reducing the risk of fracture of the structure affecting the transmittance. At the same time, in some embodiments, the transmittance of at least three photosensitive sub-regions changes in a gradual form, which can also reduce the stress between the structures affecting the transmittance in adjacent photosensitive sub-regions, thereby further reducing the risk of fracture of the structure affecting the transmittance.

[0047] A display panel comprises a substrate and a photosensitive device located on the substrate, wherein the display panel has a first display area, wherein the orthographic projection of the first display area on the substrate at least partially overlaps with the orthographic projection of the photosensitive device on the substrate, wherein the first display area comprises at least three photosensitive sub-areas arranged in a ring in sequence, wherein the distances between the at least three photosensitive sub-areas and the center of the photosensitive device increase from the inside to the outside, and the transmittance of the at least three photosensitive sub-areas decreases gradually from the inside to the outside.

[0048] In one embodiment, the display panel further includes:

[0049] An isolation structure is located on a side of the photosensitive device away from the substrate, at least a portion of the isolation structure surrounds the isolation opening, and in the first display area, at least a portion of the isolation structure surrounds the photosensitive opening;

[0050] The light emitting device is at least partially located in the isolation opening.

[0051] In one embodiment, the display panel further has a second display area at least partially surrounding the first display area, and the transmittance of the first display area is greater than the transmittance of the second display area.

[0052] The areas of the orthographic projections of the photosensitive openings in the same photosensitive sub-region on the substrate are equal, and the closer the photosensitive sub-region is to the second display region, the smaller the area of ​​the photosensitive opening is;

[0053] Optionally, the at least three photosensitive sub-areas include a first sub-area and a second sub-area, a third sub-area and a fourth sub-area sequentially arranged around the first sub-area,

[0054] The first sub-area is provided with a first photosensitive opening, and / or the second sub-area is provided with a second photosensitive opening, and / or the third sub-area is provided with a third photosensitive opening, and / or the fourth sub-area is provided with a fourth photosensitive opening;

[0055] Optionally, the area of ​​the orthographic projection of the first photosensitive opening on the substrate is larger than the area of ​​the orthographic projection of the second photosensitive opening on the substrate, and / or the area of ​​the orthographic projection of the second photosensitive opening on the substrate is larger than the area of ​​the orthographic projection of the third photosensitive opening on the substrate, and / or the area of ​​the orthographic projection of the third photosensitive opening on the substrate is larger than the area of ​​the orthographic projection of the fourth photosensitive opening on the substrate.

[0056] In one embodiment, the light emitting device includes a first color device, a second color device and a third color device, the isolation opening includes a first opening, a second opening and a third opening, the first color device is at least partially located in the first opening, the second color device is at least partially located in the second opening, and the third color device is at least partially located in the third opening.

[0057] In the at least three photosensitive sub-areas, the first openings have the same shape and area; in the at least three photosensitive sub-areas, the second openings have the same shape and area; in the at least three photosensitive sub-areas, the third openings have the same shape and area;

[0058] In different photosensitive sub-areas, the areas of the photosensitive openings located at the same position of the first opening decrease from inside to outside; and / or, in different photosensitive sub-areas, the areas of the photosensitive openings located at the same position of the second opening decrease from inside to outside; and / or, in different photosensitive sub-areas, the areas of the photosensitive openings located at the same position of the third opening decrease from inside to outside;

[0059] Optionally, the at least three photosensitive sub-areas include a first sub-area and a second sub-area, a third sub-area and a fourth sub-area sequentially arranged around the first sub-area,

[0060] In the first sub-zone, the second sub-zone, the third sub-zone and the fourth sub-zone, the area of ​​the photosensitive opening located at the same position of the first opening decreases successively; and / or, in the first sub-zone, the second sub-zone, the third sub-zone and the fourth sub-zone, the area of ​​the photosensitive opening located at the same position of the second opening decreases successively; and / or, in the first sub-zone, the second sub-zone, the third sub-zone and the fourth sub-zone, the area of ​​the photosensitive opening located at the same position of the third opening decreases successively.

[0061] In one embodiment, the display panel further includes:

[0062] A touch control wiring, the touch control wiring is located on a side of the substrate away from the photosensitive device;

[0063] Optionally, the touch control wiring is located on a side of the isolation structure away from the photosensitive device, and an orthographic projection of the touch control wiring on the substrate is located within an orthographic projection of the isolation structure on the substrate;

[0064] The line width of the touch lines of the at least three photosensitive sub-areas gradually increases from the inside to the outside;

[0065] Optionally, the at least two photosensitive sub-areas include a first sub-area and a second sub-area, a third sub-area and a fourth sub-area sequentially arranged around the first sub-area,

[0066] The first sub-area is provided with a first touch line, and / or the second sub-area is provided with a second touch line, and / or the third sub-area is provided with a third touch line, and / or the fourth sub-area is provided with a fourth touch line;

[0067] Optionally, the line width of the first touch line is smaller than the line width of the second touch line, and / or the line width of the second touch line is smaller than the line width of the third touch line, and / or the line width of the third touch line is smaller than the line width of the fourth touch line.

[0068] In the above-mentioned display panel, the transmittance of at least three photosensitive areas gradually decreases from the inside to the outside, so that more light energy can be provided to the area with stronger light absorption ability, so that the light absorption ability of the central area can be better exerted, thereby effectively increasing the total amount of light absorbed by the photosensitive device, thereby making the photosensitive device easier to start, thereby increasing the sensitivity difference of the photosensitive device.

[0069] At the same time, the transmittance of at least three photosensitive areas changes in a gradual manner, so that the size of the structure affecting the transmittance in each photosensitive area can be gradually changed, thereby reducing the etching load effect during the preparation of the structure affecting the transmittance, thereby reducing the risk of fracture of the structure affecting the transmittance. At the same time, in some embodiments, the transmittance of at least three photosensitive areas changes in a gradual manner, which can also reduce the stress between the structures affecting the transmittance in adjacent photosensitive areas, thereby further reducing the risk of fracture of the structure affecting the transmittance.

[0070] A display device comprises the display panel as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. 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.

[0072] Figure 1 is a partial plan view of a display panel in an embodiment of the present application;

[0073] Figure 2 for Figure 1 A schematic diagram of the area division of the first display area;

[0074] Figure 3 is a partial plan view of a display panel in another embodiment of the present application;

[0075] Figure 4 for Figure 3 A schematic diagram of the area division of the first display area;

[0076] Figure 5 A schematic diagram of the area division of the first display area in another embodiment of the present application;

[0077] Figure 6 is a partial cross-sectional schematic diagram of a display panel in an embodiment of the present application;

[0078] Figure 7 This is a schematic diagram of a partial structure of the first display area in one embodiment of the present application;

[0079] Figure 8 FIG. 1 is a schematic diagram of a partial structure of a first display area in another embodiment of the present application.

[0080] Description of reference numerals:

[0081] AA-display area, A1-first display area, A11-photosensitive sub-area, A111-first sub-area, A112-annular sub-area, A112a-second sub-area, A112b-third sub-area, A112c-fourth sub-area, A2-second display area, 100-isolation structure, 110-first isolation layer, 120-second isolation layer, 130-third isolation layer, 200-light-emitting device, 210-first electrode, 220-light-emitting structure, 240-second electrode, 300-pixel definition layer, 400-packaging unit, 500-touch wiring, 10-isolation opening, 10a-first opening, 10b-second opening, 10c-third opening, 20-photosensitive opening, 30-pixel opening. DETAILED DESCRIPTION

[0082] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0083] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0084] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0085] In the accompanying drawings, the areas of layers and regions may be exaggerated for clarity. It is understood that when a layer or element is referred to as being "on" another layer or substrate, the layer or element may be directly on the other layer or substrate, or there may be an intermediate layer. In addition, it is also understood that when a layer is referred to as being "between" two layers, the layer may be the only layer between the two layers, or there may be one or more intermediate layers. In addition, the same reference numerals always represent the same elements.

[0086] In the following embodiments, when a layer, region, or element is "connected", it can be interpreted that the layer, region, or element is not only directly connected but also connected through other constituent elements placed therebetween. For example, when a layer, region, element, etc. is described as being connected or electrically connected, the layer, region, element, etc. can be connected or electrically connected not only directly or directly, but also through another layer, region, element, etc. placed therebetween.

[0087] Hereinafter, although terms such as "first", "second", etc. may be used to describe various components, these components are not necessarily limited to the above terms. The above terms are only used to distinguish one component from another. It will also be understood that expressions used in the singular include plural expressions unless the expression in the singular has an obviously different meaning in the context.

[0088] When a statement such as "at least one (of)..." is located after a list of elements, it modifies the entire list of elements rather than the individual elements in the list. The term "and / or" as used herein includes any and all combinations of one or more related listed items. As used in the application documents, the term "and / or" includes any and all combinations of one or more related listed items. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0089] In one embodiment, see Figure 1 or Figure 3 , providing a display panel.

[0090] The display panel includes a substrate (not shown) and a photosensitive device (not shown).

[0091] The substrate may include a flexible substrate or a rigid substrate. The substrate may be provided with structures such as a pixel circuit.

[0092] The photosensitive device is located on the substrate and can be processed and formed simultaneously with structures such as pixel circuits.

[0093] As an example, the photosensitive device may include an under-screen camera, an under-screen fingerprint recognition device, etc.

[0094] The display panel is provided with a first display area A1. The orthographic projection of the first display area A1 on the substrate at least partially overlaps with the orthographic projection of the photosensitive device on the substrate.

[0095] As an example, the display panel may include a display area AA. The display area AA may include a second display area A2 and a first display area A1. The second display area A2 and the first display area A1 may both be provided with pixel units, so that both may display. The area of ​​the first display area A1 may be smaller than the area of ​​the second display area A2. At the same time, the transmittance of the first display area A1 may be greater than the transmittance of the second display area A2, so that the photosensitive device may be activated.

[0096] Meanwhile, the first display area A1 includes at least two photosensitive sub-areas A11. That is, the number of the photosensitive sub-areas A11 can be two or more. The smaller the distance between the photosensitive sub-area A11 and the edge of the photosensitive device is, the greater the transmittance is.

[0097] As an example, the at least two photosensitive sub-areas A11 include a first sub-area A111 and a second sub-area A112a. The distance between the first sub-area A111 and the edge of the photosensitive device is greater than the distance between the second sub-area A112a and the edge of the photosensitive device, and the transmittance of the first sub-area A111 is less than the transmittance of the second sub-area A112a.

[0098] For a photosensitive device, the closer to the center of the device, the stronger the light absorption ability, and the closer to the edge of the device, the weaker the light absorption ability. In the related art, the transmittance at each position of the first display area A1 is the same. Therefore, the closer to the edge of the device, the smaller the amount of light absorbed by the sensing device.

[0099] In this embodiment, the smaller the distance between the photosensitive area and the edge of the photosensitive device, the greater the transmittance, which can effectively compensate for the defect of weak light absorption ability at the edge of the photosensitive device, and can effectively increase the amount of light absorbed at the edge of the photosensitive device and the total amount of light absorbed, thereby making the photosensitive device easier to start, thereby increasing the sensing sensitivity difference of the photosensitive device.

[0100] At the same time, when the number of photosensitive sub-areas is at least three, the transmittance of each photosensitive sub-area A11 changes in a gradual manner, so that the size of the structure affecting the transmittance in each photosensitive sub-area A11 can be gradually changed, thereby reducing the etching load effect during the preparation of the structure affecting the transmittance, thereby reducing the risk of fracture of the structure affecting the transmittance. At the same time, in some embodiments, the transmittance of at least three photosensitive sub-areas A11 changes in a gradual manner, which can also reduce the stress between the structures affecting the transmittance in adjacent photosensitive sub-areas A11, thereby further reducing the risk of fracture of the structure affecting the transmittance.

[0101] In one embodiment, the display panel has a second display area A2 at least partially surrounding the first display area A1. The transmittance of the first display area A1 is greater than the transmittance of the second display area A2, so that the photosensitive device can be activated.

[0102] At the same time, at least two photosensitive sub-areas A11 are arranged in a ring in sequence. The closer the photosensitive sub-area is to the second display area, the smaller the distance to the edge of the photosensitive device is, and the greater the transmittance is.

[0103] Optionally, see Figure 2 or Figure 4 The first display area A1 includes at least three photosensitive sub-areas A11 arranged in a ring in sequence. The specific number of the photosensitive sub-areas A11 can be set according to actual needs. The transmittance of the at least three photosensitive sub-areas A11 gradually increases from the inside to the outside, that is, the transmittance of the at least three photosensitive sub-areas A11 is in a gradual form, gradually increasing from the inside to the outside.

[0104] In one embodiment, see Figure 1 as well as Figure 2, or see Figure 3 as well as Figure 4 , the at least two photosensitive sub-areas A11 include a first sub-area A111 and at least one annular sub-area A112 surrounding the first sub-area A111.

[0105] Optionally, the annular sub-area A112 includes a second sub-area A112a. The transmittance of the first sub-area A111 is smaller than the transmittance of the second sub-area A112a.

[0106] Optionally, the distance from the centroid of the first display area A1 to the first sub-area A111 is smaller than the distance from the center of the first display area A1 to the second sub-area A112a. It can be understood that the "centroid" herein refers to the center of the shape.

[0107] Optionally, the centroid of the first sub-area A111 coincides with the centroid of the first display area A1.

[0108] Optionally, the orthographic projection of the photosensitive device on the substrate includes a central area, and the centroid of the central area coincides with the centroid of the first sub-area A111.

[0109] Optionally, the orthographic projection of the first sub-area A111 on the substrate covers the orthographic projection of the central area on the substrate.

[0110] Optionally, the orthographic projection of the first sub-area A111 on the substrate coincides with the orthographic projection of the central area on the substrate.

[0111] Optionally, the orthographic projection of the first display area A1 on the substrate coincides with the orthographic projection of the photosensitive device on the substrate.

[0112] The size of each photosensitive sub-area A11 can be set according to actual needs and is not limited here.

[0113] Optionally, see Figure 2 For example, the radius of the first sub-area A111 may be set to be the same as the width of each annular sub-area A112 along the diameter direction of the first display area A1. For another example, the radius of the first sub-area A111 may be set to be the same as the area of ​​each annular sub-area A112.

[0114] Optionally, the annular sub-area A112 includes a third sub-area A112b and a fourth sub-area A112c. The third sub-area A112b is disposed around the second sub-area A112a. The fourth sub-area A112c is disposed around the third sub-area A112b.

[0115] Optionally, the shape of the first sub-area A111 is the same as that of the first display area A1.

[0116] Optionally, the inner edge of the second sub-region A112a coincides with the edge of the first sub-region A111, the inner edge of the third sub-region A112b coincides with the outer edge of the second sub-region A112a, and the outer edge of the third sub-region A112b coincides with the inner edge of the fourth sub-region A112c.

[0117] Optionally, an outer edge of the fourth sub-area A112c coincides with an edge of the first display area A1.

[0118] As an example, see Figure 1 , the shape of the first display area A1 is circular, and the shape of the photosensitive device is circular. Figure 2 , the first sub-area A111 is a circular sub-area, and each annular sub-area A112 is a circular annular sub-area A112.

[0119] As another example, see Figure 3 , the shape of the first display area A1 is a square, and the shape of the photosensitive device is a square. Figure 4 , the first sub-area A111 is a square sub-area. Each annular sub-area A112 is a square annular sub-area A112.

[0120] As another example, the shape of the first display area A1 is a triangle, and the shape of the photosensitive device is a triangle. Figure 5 , the first sub-area A111 is a triangular sub-area, and each annular sub-area A112 is a triangular annular sub-area A112.

[0121] Of course, the shape of the first display area A1 may also be other regular or irregular shapes, which may be specifically set according to the actual form of the photosensitive device.

[0122] In this embodiment, at least two photosensitive sub-areas are arranged in an annular manner in sequence, and the widths of each annular sub-area A112 in different directions are the same, so that the amount of light absorbed by the photosensitive device can be uniformly compensated in different directions, thereby improving the sensing uniformity of the sensing device.

[0123] In one embodiment, see Figure 6 The display panel further includes an isolation structure 100 and a light emitting device 200 .

[0124] The isolation structure 100 is located on a side of the photosensitive device away from the substrate. At least a portion of the isolation structure 100 surrounds the isolation opening 10 .

[0125] Patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, CN117979755A, CN117998900 A. CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A record relevant technical solutions of the isolation structure 100540, and their contents are incorporated into this application by reference for reference.

[0126] The material of the isolation structure 100 may include a conductive material, and the conductive material may be, for example, a metal material.

[0127] As an example, the isolation structure 100 may include a first isolation layer 110 and a second isolation layer 120, wherein the first isolation layer 110 is located on a side of the second isolation layer 120 close to the substrate, and an orthographic projection of the first isolation layer 110 on the substrate is located within an orthographic projection of the second isolation layer 120 on the substrate;

[0128] Optionally, the isolation layer further includes a third isolation layer 130 , which is located on a side of the first isolation layer 110 away from the second isolation layer 120 , and the orthographic projection of the first isolation layer 110 on the substrate is located within the orthographic projection of the third isolation layer 130 on the substrate.

[0129] At least a portion of the structure of the light emitting device 200 is located in the isolation opening 10 .

[0130] As an example, the display panel further includes a pixel definition layer 300. The pixel definition layer 300 is located on a side of the isolation structure 100 close to the photosensitive device. The pixel definition layer 300 is arranged to form a pixel opening 30. The pixel opening 30 is connected to the isolation opening 10. The orthographic projection of the pixel opening 30 on the substrate is located within the orthographic projection of the isolation opening 10 on the substrate.

[0131] The light emitting device 200 may include a first electrode 210, a light emitting structure 220 and a second electrode 240 which are stacked in sequence. One of the first electrode 210 and the second electrode 240 is an anode, and the other is a cathode. The light emitting structure 220 may include, for example, a plurality of organic light emitting layers.

[0132] The first electrode 210 may be located on a side of the pixel definition layer 300 close to the photosensitive device, and the pixel opening 30 may expose a portion of the first electrode 210. The light emitting structure 220 and the second electrode 240 may be formed in the pixel opening 30 and the isolation opening 10. The light emitting structure 220 is located on the surface of the first electrode 210, and the second electrode 240 is located on the surface of the light emitting structure 220. The second electrode 240 may be connected to the isolation structure 100, so that the second electrodes 240 in each isolation opening 10 are electrically connected through the isolation structure 100. Specifically, the second electrode 240 may be connected to the side wall of the first isolation layer 110, for example.

[0133] The display panel may include a plurality of light emitting devices 200 of different colors, and the light emitting devices 200 of different colors may be formed based on different isolation openings 10 .

[0134] In addition, a packaging unit 400 may be formed in each isolation opening 10 . The packaging unit 400 is at least located on the surface of the second electrode 240 and the side wall of the isolation opening 10 .

[0135] Also, see Figure 6 as well as Figure 7 In the first display area A1 , at least a portion of the isolation structure 100 between the isolation openings 10 is also surrounded by a photosensitive opening 20 .

[0136] Specifically, the first display area A1 may be provided with a plurality of isolation openings 10 and a plurality of photosensitive openings 20. The material of the pixel definition layer 300 may be a light-transmitting inorganic material. The pixel definition layer 300 below the photosensitive opening 20 may be continuous without any openings.

[0137] In this embodiment, the transmittance of the first display area A1 can be increased by disposing the photosensitive opening 20, thereby facilitating the activation of the photosensitive device.

[0138] In one embodiment, see Figure 8 , the areas of the orthographic projections of the photosensitive openings 20 in the same photosensitive sub-area A11 on the substrate are equal. At least two photosensitive sub-areas A11 are arranged in a ring in sequence, and the closer the photosensitive sub-area A11 is to the second display area A2, the larger the area of ​​the photosensitive opening 20 is.

[0139] As an example, see Figure 2 The at least two photosensitive sub-areas A11 include a first sub-area A111 and a second sub-area A112a, a third sub-area A112b and a fourth sub-area A112c which are sequentially arranged around the first sub-area A111.

[0140] The first sub-area is provided with a first photosensitive opening, and / or the second sub-area is provided with a second photosensitive opening, and / or the third sub-area is provided with a third photosensitive opening, and / or the fourth sub-area is provided with a fourth photosensitive opening.

[0141] Optionally, the area of ​​the orthographic projection of the first photosensitive opening on the substrate is smaller than the area of ​​the orthographic projection of the second photosensitive opening on the substrate; and / or, the area of ​​the orthographic projection of the second photosensitive opening on the substrate is smaller than the area of ​​the orthographic projection of the third photosensitive opening on the substrate; and / or, the area of ​​the orthographic projection of the third photosensitive opening on the substrate is smaller than the area of ​​the orthographic projection of the fourth photosensitive opening on the substrate.

[0142] Optionally, the area of ​​the first photosensitive opening of the first sub-area A111 is S1, the area of ​​the second photosensitive opening of the second sub-area A112a is S2, the area of ​​the third photosensitive opening of the third sub-area A112b is S3, and the area of ​​the fourth photosensitive opening of the fourth sub-area A112c is S4. Then S1 <S2<S3<S4。

[0143] Optionally, the area of ​​the photosensitive opening 20 of the first sub-area A111 is a preset area, that is, the area of ​​the photosensitive opening 20 of the innermost photosensitive sub-area A11 is a preset area.

[0144] The preset area may be, for example, the area of ​​the photosensitive opening 20 at each position of the first display area A1 and the area of ​​the photosensitive opening 20 used in the related art with the same transmittance. At this time, the area of ​​the photosensitive opening 20 of the first sub-area A111 is the same as the area of ​​the photosensitive opening 20 used in the related art, while the area of ​​the photosensitive opening 20 of each annular sub-area A112 is larger than the area of ​​the photosensitive opening 20 used in the related art, and the area of ​​the photosensitive opening 20 of the annular sub-area A112 closer to the edge is larger. Therefore, at this time, compared with the related art, the sensing sensitivity of the photosensitive device can be significantly improved.

[0145] Of course, the area of ​​the photosensitive opening 20 of the first sub-area A111 may also be different from the area of ​​the photosensitive opening 20 used in the related art, and the area of ​​the photosensitive opening 20 of each photosensitive sub-area A11 may be adjusted according to actual product requirements.

[0146] The larger the area of ​​the photosensitive opening 20 of the isolation structure 100 is, the higher the transmittance is.

[0147] In this embodiment, the areas of the photosensitive openings 20 of at least two photosensitive sub-areas A11 gradually increase from the inside to the outside, which can effectively achieve that the transmittance of the at least two photosensitive sub-areas A11 gradually increases from the inside to the outside.

[0148] At the same time, when the number of the photosensitive sub-regions A11 is at least three, the area of ​​the photosensitive opening 20 of each photosensitive sub-region A11 changes in a gradual manner, so that the line width of the isolation structure 100 in each photosensitive sub-region A11 can be gradually changed, thereby reducing the etching load effect during the preparation process of the isolation structure 100, thereby reducing the risk of fracture of the isolation structure 100. At the same time, the area of ​​the photosensitive opening 20 of at least three photosensitive sub-regions A11 changes in a gradual manner, which can also reduce the stress between the isolation structures 100 in adjacent photosensitive sub-regions A11, thereby further reducing the risk of fracture of the isolation structure 100.

[0149] In one embodiment, the light emitting device 200 includes a first color device, a second color device, and a third color device. The light emitting structures 220 of the light emitting devices 200 of different colors are made of different materials, so that they can emit light of different colors.

[0150] See also Figure 7 The isolation opening 10 includes a first opening 10a, a second opening 10b and a third opening 10c. The first color device is at least partially located in the first opening 10a. The second color device is at least partially located in the second opening 10b. The third color device is at least partially located in the third opening 10c.

[0151] During the preparation of the display panel, multiple first color devices may be prepared in multiple first openings 10a first, then multiple second color devices may be prepared in multiple second openings 10b, and finally multiple third color devices may be prepared in multiple third openings 10c.

[0152] A group of the first color device, the second color device, and the third color device may form a pixel unit, thereby forming a plurality of pixel units.

[0153] In at least two photosensitive sub-areas A11, the first openings 10a have the same shape and area. Specifically, the first openings 10a in the same photosensitive sub-area A11 have the same shape and area. The first openings 10a in different photosensitive sub-areas A11 also have the same shape and area.

[0154] In at least two photosensitive sub-areas A11, the second openings 10b have the same shape and area. Specifically, the second openings 10b in the same photosensitive sub-area A11 have the same shape and area. The second openings 10b in different photosensitive sub-areas A11 also have the same shape and area.

[0155] In at least two photosensitive sub-areas A11, the third openings 10c have the same shape and area. Specifically, different third openings 10c in the same photosensitive sub-area A11 have the same shape and area. Third openings 10c in different photosensitive sub-areas A11 also have the same shape and area.

[0156] As an example, the shapes and / or areas of the first opening 10a, the second opening 10b, and the third opening 10c in the same photosensitive sub-area A11 may be different. For example, the first color device may be a blue light-emitting device 200, and the second color device may be, for example, a green light-emitting device 200. The third color device may be, for example, a red light-emitting device 200. At this time, in the same photosensitive sub-area A11, the areas of the first opening 10a, the second opening 10b, and the third opening 10c may be reduced in sequence. When the display panel includes a pixel opening 30, in the same photosensitive sub-area A11, the areas of the pixel openings 30 corresponding to the first opening 10a, the second opening 10b, and the third opening 10c may also be reduced in sequence.

[0157] As an example, at least two photosensitive sub-areas are arranged in a ring in sequence.

[0158] Furthermore, in the same photosensitive sub-area A11, the shapes and / or areas of the photosensitive openings 20 located at different positions of the first opening 10a may not be completely the same or completely different. In the same photosensitive sub-area A11, the shapes and / or areas of the photosensitive openings 20 located at different positions of the second opening 10b may not be completely the same or completely different. In the same photosensitive sub-area A11, the shapes and / or areas of the photosensitive openings 20 located at different positions of the third opening 10c may not be completely the same or completely different.

[0159] In different photosensitive sub-areas A11 , the areas of the photosensitive openings 20 located at the same position of the first opening 10 a increase from the inside to the outside.

[0160] For example, in different photosensitive sub-areas A11 , the areas of the photosensitive openings 20 located above, below, to the left, and to the right of the first opening 10 a gradually increase from the inside to the outside.

[0161] And / or, in different photosensitive sub-areas A11, the areas of the photosensitive openings 20 located at the same position of the second opening 10b increase sequentially from the inside to the outside.

[0162] For example, in different photosensitive sub-areas A11, the areas of the photosensitive openings 20 located above, below, to the left, and to the right of the second opening 10b increase sequentially from the inside to the outside.

[0163] And / or, in different photosensitive sub-areas A11, the areas of the photosensitive openings 20 located at the same position of the third opening 10c gradually increase from the inside to the outside.

[0164] For example, in different photosensitive sub-areas A11, the areas of the photosensitive openings 20 located at different positions of the third opening 10c gradually increase from the inside to the outside.

[0165] Optionally, the at least two photosensitive sub-areas A11 include a first sub-area A111 and a second sub-area A112a, a third sub-area A112b and a fourth sub-area A112c which are sequentially arranged around the first sub-area A111.

[0166] In the first sub-area A111, the second sub-area A112a, the third sub-area A112b and the fourth sub-area A112c, the areas of the photosensitive openings located at the same position of the first opening increase sequentially.

[0167] And / or, in the first sub-area A111, the second sub-area A112a, the third sub-area A112b and the fourth sub-area A112c, the areas of the photosensitive openings located at the same position of the second opening increase sequentially.

[0168] And / or, in the first sub-area A111, the second sub-area A112a, the third sub-area A112b and the fourth sub-area A112c, the areas of the photosensitive openings located at the same position of the third opening increase sequentially.

[0169] In this embodiment, by setting the areas of the photosensitive openings 20 located at the same opening and the same orientation in different photosensitive sub-areas A11 to gradually increase from the inside to the outside, the transmittance of at least three photosensitive sub-areas A11 can be effectively increased from the inside to the outside.

[0170] In one embodiment, see Figure 7 , the display panel also includes a touch line 500 .

[0171] The touch control trace 500 is located on a side of the substrate away from the photosensitive device.

[0172] Optionally, the touch line 500 is located on a side of the isolation structure 100 away from the photosensitive device, so that the display panel can have a touch function. The material of the touch line 500 can include but is not limited to metal material.

[0173] Meanwhile, the orthographic projection of the touch line 500 on the substrate is located within the orthographic projection of the isolation structure 100 on the substrate. At this time, in the first display area A1, the orthographic projection of the touch line 500 on the substrate can surround the orthographic projection of the isolation opening 10 on the substrate and the orthographic projection of the photosensitive opening 20 on the substrate.

[0174] The line width of the touch wiring 500 of at least two photosensitive sub-areas A11 gradually decreases from the inside to the outside.

[0175] As an example, the at least two photosensitive sub-areas A11 include a first sub-area A111 and a second sub-area A112a, a third sub-area A112b and a fourth sub-area A112c which are sequentially arranged around the first sub-area A111.

[0176] The first sub-area is provided with a first touch control line. And / or, the second sub-area is provided with a second touch control line. And / or, the third sub-area is provided with a third touch control line. And / or, the fourth sub-area is provided with a fourth touch control line.

[0177] Optionally, the line width of the first touch line is greater than the line width of the second touch line. And / or, the line width of the second touch line is greater than the line width of the third touch line. And / or, the line width of the third touch line is greater than the line width of the fourth touch line.

[0178] Optionally, the line width of the first touch line in the first sub-area A111 is L1, the line width of the second touch line in the second sub-area A112a is L1, the line width of the third touch line in the third sub-area A112b is L2, and the line width of the fourth touch line in the fourth sub-area A112c is L3. Then L1>L2>L3>L4.

[0179] Optionally, the line width of the touch line 500 in the first sub-area A111 is a preset line width, that is, the line width of the touch line 500 in the innermost photosensitive sub-area A11 is a preset line width.

[0180] The preset line width may be, for example, the line width of the touch line 500 at each position of the first display area A1 and the line width used in the related art with the same transmittance. At this time, the line width of the touch line 500 of the first sub-area A111 is the same as the line width of the touch line 500 used in the related art, while the line width of the touch line 500 of each annular sub-area A112 is greater than the line width of the touch line 500 used in the related art, and the closer the annular sub-area A112 is to the edge, the smaller the line width of the touch line 500 is. Therefore, at this time, compared with the related art, the sensing sensitivity of the photosensitive device can be significantly improved.

[0181] Of course, the line width of the touch line 500 in the first sub-area A111 may also be different from the line width of the touch line 500 used in the related art, and the line width of the touch line 500 in each photosensitive sub-area A11 may be adjusted according to actual product requirements.

[0182] In the actual production process, affected by factors such as alignment error and line width fluctuation, the touch line 500 may block the photosensitive opening 20 , thereby reducing the actual transmittance of the photosensitive opening 20 .

[0183] In this embodiment, the line width of the touch line 500 of at least two photosensitive sub-areas A11 is gradually reduced from the inside to the outside. Therefore, the closer to the edge of the first display area A1, the smaller the line width of the touch line 500, and the smaller the probability that the touch line 500 will block the photosensitive opening 20, so that the transmittance of at least three photosensitive sub-areas A11 can be effectively increased from the inside to the outside.

[0184] At the same time, the smaller the line width, the thinner the line, and the easier it is to break the line. In this embodiment, the line width of the touch line 500 of at least two photosensitive sub-areas A11 gradually decreases from the inside to the outside, and the thinner touch line 500 is located at the edge of the first display area A1. The closer to the center of the first display area A1, the larger the line width of the touch line 500, and the line width of the touch line 500 gradually changes, thereby reducing the risk of line breakage.

[0185] At the same time, when the number of the photosensitive sub-areas A11 is at least three, the line width of the touch wiring 500 of each photosensitive sub-area A11 changes in a gradual manner, thereby reducing the etching load effect during the preparation process of the touch wiring 500, thereby further reducing the risk of fracture of the touch wiring 500. At the same time, the line width of the touch wiring 500 of at least three photosensitive sub-areas A11 changes in a gradual manner, which can also reduce the stress between the touch wirings 500 in adjacent photosensitive sub-areas A11, thereby further reducing the risk of fracture of the isolation structure 100.

[0186] Of course, in other embodiments, the setting manner of the touch wiring 500 is not limited to this. For example, in some embodiments, when the photosensitive openings of at least two photosensitive sub-areas A11 gradually increase from the inside to the outside, the line widths of the touch wiring 500 of at least two photosensitive sub-areas A11 may be set to be the same. Alternatively, when the photosensitive openings of at least two photosensitive sub-areas A11 gradually increase from the inside to the outside, the line widths of the touch wiring 500 of at least two photosensitive sub-areas A11 may also be set to gradually increase from the inside to the outside. It is sufficient to ensure that the light transmittance of at least two photosensitive sub-areas A11 gradually increases from the inside to the outside.

[0187] In other embodiments, when the line width of the touch wiring 500 of at least two photosensitive sub-areas A11 gradually decreases from the inside to the outside, the photosensitive openings of at least two photosensitive sub-areas A11 are not limited to gradually increasing from the inside to the outside. For example, in some embodiments, when the line width of the touch wiring 500 of at least two photosensitive sub-areas A11 gradually decreases from the inside to the outside, the sizes of the photosensitive openings of at least two photosensitive sub-areas A11 may also be the same. Alternatively, when the line width of the touch wiring 500 of at least two photosensitive sub-areas A11 gradually decreases from the inside to the outside, the sizes of the photosensitive openings of at least two photosensitive sub-areas A11 may also gradually decrease from the inside to the outside. It is sufficient to ensure that the light transmittance of at least two photosensitive sub-areas A11 gradually increases from the inside to the outside.

[0188] In one embodiment, the line widths of the touch lines 500 in the same photosensitive sub-area A11 are the same, thereby facilitating process processing.

[0189] Of course, in other embodiments, the line width of the touch wiring 500 in the same photosensitive sub-area A11 may also be different, and can be specifically set according to actual needs.

[0190] In the above embodiments, the transmittance of at least three photosensitive sub-areas A11 gradually increases from the inside to the outside, thereby improving the poor sensitivity of the photosensitive device.

[0191] Some other embodiments are provided below to improve the poor sensing sensitivity of the photosensitive device.

[0192] In one embodiment, see Figure 1 or Figure 3 , providing a display panel.

[0193] The display panel includes a substrate and a photosensitive device.

[0194] The substrate may include a flexible substrate or a rigid substrate. The substrate may be provided with structures such as a pixel circuit.

[0195] The photosensitive device is located on the substrate and can be processed and formed simultaneously with structures such as pixel circuits.

[0196] As an example, the photosensitive device may include an under-screen camera, an under-screen fingerprint recognition device, etc.

[0197] The display panel is provided with a first display area A1. The orthographic projection of the first display area A1 on the substrate at least partially overlaps with the orthographic projection of the photosensitive device on the substrate.

[0198] As an example, the display panel may include a display area AA. The display area AA may include a second display area A2 and a first display area A1. The second display area A2 and the first display area A1 may both be provided with pixel units, so that both may display. The area of ​​the first display area A1 may be smaller than the area of ​​the second display area A2. At the same time, the transmittance of the first display area A1 may be greater than the transmittance of the second display area A2, so that the photosensitive device may be activated.

[0199] Also, see Figure 2 or Figure 4 , the first display area A1 includes at least three photosensitive sub-areas A11 arranged in a ring in sequence. The specific number of the photosensitive sub-areas A11 can be set according to actual needs. The distances between the at least three photosensitive sub-areas and the center of the photosensitive device increase from the inside to the outside, and the transmittance of the at least three photosensitive sub-areas A11 gradually decreases from the inside to the outside, that is, the transmittance of the at least three photosensitive sub-areas A11 is in a gradual form, gradually decreasing from the inside to the outside.

[0200] For a photosensitive device, the closer to the center of the device, the stronger the light absorption ability, and the closer to the edge of the device, the weaker the light absorption ability. In the related art, the transmittance at each position of the first display area A1 is the same. Therefore, the closer to the edge of the device, the smaller the amount of light absorbed by the sensing device.

[0201] In this embodiment, the transmittance of at least three photosensitive areas A11 gradually decreases from the inside to the outside, so that more light energy can be provided to the area with stronger light absorption ability, so that the light absorption ability of the central area can be better exerted, thereby effectively increasing the total amount of light absorbed by the photosensitive device, making the photosensitive device easier to start, thereby increasing the sensing sensitivity difference of the photosensitive device.

[0202] At the same time, the transmittance of at least three photosensitive sub-areas A11 changes in a gradual manner, so that the size of the structure affecting the transmittance in each photosensitive sub-area A11 can be gradually changed, thereby reducing the etching load effect during the preparation of the structure affecting the transmittance, thereby reducing the risk of fracture of the structure affecting the transmittance. At the same time, in some embodiments, the transmittance of at least three photosensitive sub-areas A11 changes in a gradual manner, which can also reduce the stress between the structures affecting the transmittance in adjacent photosensitive sub-areas A11, thereby further reducing the risk of fracture of the structure affecting the transmittance.

[0203] In one embodiment, see Figure 1 as well as Figure 2 , or see Figure 3 as well as Figure 4 The first display area A1 includes a first sub-area A111 and at least two annular sub-areas A112 sequentially arranged around the first sub-area A111.

[0204] The size of each photosensitive sub-area A11 can be set according to actual needs, and there is no limitation on this here. Figure 2 For example, the radius of the first sub-area A111 may be set to be the same as the width of each annular sub-area A112 along the diameter direction of the first display area A1. For another example, the radius of the first sub-area A111 may be set to be the same as the area of ​​each annular sub-area A112.

[0205] The central axis of the first sub-area A111 may coincide with the central axis of the first display area A1. Meanwhile, the shape of the first sub-area A111 is the same as that of the first display area A1.

[0206] The inner edge of the innermost annular sub-area A112 coincides with the edge of the first sub-area A111, and the inner edge of the i+1th annular sub-area A112 coincides with the outer edge of the ith annular sub-area A112. The outer edge of the outermost annular sub-area A112 coincides with the edge of the first display area A1.

[0207] As an example, see Figure 1 , the shape of the first display area A1 is circular, that is, the shape of the photosensitive device is circular. Figure 2 , the first sub-area A111 is a circular sub-area, and each annular sub-area A112 is a circular annular sub-area A112.

[0208] As another example, see Figure 3 , the shape of the first display area A1 is a square, that is, the shape of the photosensitive device is a square. Figure 4 , the first sub-area A111 is a square sub-area. Each annular sub-area A112 is a square annular sub-area A112.

[0209] As another example, the shape of the first display area A1 is a triangle, that is, the shape of the photosensitive device is a triangle. In this case, the first sub-area A111 is a triangular sub-area. Each annular sub-area A112 is a triangular annular sub-area A112.

[0210] Of course, the shape of the first display area A1 may also be other regular or irregular shapes, which may be specifically set according to the actual form of the photosensitive device.

[0211] In this embodiment, the widths of the annular sub-areas A112 in different directions are the same, so that the amount of light absorbed by the photosensitive device can be uniformly compensated in different directions, thereby improving the sensing uniformity of the sensing device.

[0212] In one embodiment, see Figure 6 The display panel further includes an isolation structure 100 and a light emitting device 200 .

[0213] The isolation structure 100 is located on a side of the photosensitive device away from the substrate and surrounds an isolation opening 10 .

[0214] The material of the isolation structure 100 may include a conductive material, and the conductive material may be, for example, a metal material.

[0215] As an example, the isolation structure 100 may include a first isolation layer 110 and a second isolation layer 120, wherein the first isolation layer 110 is located on a side of the second isolation layer 120 close to the substrate, and an orthographic projection of the first isolation layer 110 on the substrate is located within an orthographic projection of the second isolation layer 120 on the substrate;

[0216] Optionally, the isolation layer further includes a third isolation layer 130 , which is located on a side of the first isolation layer 110 away from the second isolation layer 120 , and the orthographic projection of the first isolation layer 110 on the substrate is located within the orthographic projection of the third isolation layer 130 on the substrate.

[0217] At least a portion of the structure of the light emitting device 200 is located in the isolation opening 10 .

[0218] As an example, the display panel further includes a pixel definition layer 300. The pixel definition layer 300 is located on a side of the isolation structure 100 close to the photosensitive device. The pixel definition layer 300 is arranged to form a pixel opening 30. The pixel opening 30 is connected to the isolation opening 10. The orthographic projection of the pixel opening 30 on the substrate is located within the orthographic projection of the isolation opening 10 on the substrate.

[0219] The light emitting device 200 may include a first electrode 210, a light emitting structure 220 and a second electrode 240 which are stacked in sequence. One of the first electrode 210 and the second electrode 240 is an anode, and the other is a cathode. The light emitting structure 220 may include, for example, a plurality of organic light emitting layers.

[0220] The first electrode 210 may be located on a side of the pixel definition layer 300 close to the photosensitive device, and the pixel opening 30 may expose a portion of the first electrode 210. The light emitting structure 220 and the second electrode 240 may be formed in the pixel opening 30 and the isolation opening 10. The light emitting structure 220 is located on the surface of the first electrode 210, and the second electrode 240 is located on the surface of the light emitting structure 220. The second electrode 240 may be connected to the isolation structure 100, so that the second electrodes 240 in each isolation opening 10 are electrically connected through the isolation structure 100. Specifically, the second electrode 240 may be connected to the side wall of the first isolation layer 110, for example.

[0221] The display panel may include a plurality of light emitting devices 200 of different colors, and the light emitting devices 200 of different colors may be formed based on different isolation openings 10 .

[0222] In addition, a packaging unit 400 may be formed in each isolation opening 10 . The packaging unit 400 is at least located on the surface of the second electrode 240 and the side wall of the isolation opening 10 .

[0223] Also, see Figure 6 as well as Figure 7 In the first display area A1 , the isolation structures 100 between the isolation openings 10 are also arranged to form a photosensitive opening 20 .

[0224] Specifically, the first display area A1 may be provided with a plurality of isolation openings 10 and a plurality of photosensitive openings 20. The material of the pixel definition layer 300 may be a light-transmitting inorganic material. The pixel definition layer 300 below the photosensitive opening 20 may be continuous without any openings.

[0225] In this embodiment, the transmittance of the first display area A1 can be increased by disposing the photosensitive opening 20, thereby facilitating the activation of the photosensitive device.

[0226] In one embodiment, the display panel further has a second display area A2 at least partially surrounding the first display area A1 , and the transmittance of the first display area A1 is greater than the transmittance of the second display area A2 .

[0227] The areas of the orthographic projections of the photosensitive openings 20 located in the same photosensitive sub-area A11 on the substrate are equal, and the closer the photosensitive sub-area A11 is to the second display area A2, the smaller the area of ​​the photosensitive opening 20 is.

[0228] As an example, see Figure 2 The at least three photosensitive sub-areas A11 include a first sub-area A111 and a second sub-area A112a, a third sub-area A112b and a fourth sub-area A112c which are sequentially arranged around the first sub-area A111.

[0229] The first sub-area is provided with a first photosensitive opening, and / or the second sub-area is provided with a second photosensitive opening, and / or the third sub-area is provided with a third photosensitive opening, and / or the fourth sub-area is provided with a fourth photosensitive opening.

[0230] Optionally, the area of ​​the orthographic projection of the first photosensitive opening on the substrate is larger than the area of ​​the orthographic projection of the second photosensitive opening on the substrate; and / or, the area of ​​the orthographic projection of the second photosensitive opening on the substrate is larger than the area of ​​the orthographic projection of the third photosensitive opening on the substrate; and / or, the area of ​​the orthographic projection of the third photosensitive opening on the substrate is larger than the area of ​​the orthographic projection of the fourth photosensitive opening on the substrate.

[0231] Optionally, the area of ​​the first photosensitive opening of the first sub-area A111 is S1, the area of ​​the second photosensitive opening of the second sub-area A112a is S2, the area of ​​the third photosensitive opening of the third sub-area A112b is S3, and the area of ​​the fourth photosensitive opening of the fourth sub-area A112c is S4. Then S1>S2>S3>S4.

[0232] Optionally, the area of ​​the photosensitive opening 20 of the fourth sub-area A112c is a preset area, that is, the area of ​​the photosensitive opening 20 of the outermost photosensitive sub-area A11 is a preset area.

[0233] The preset area may be, for example, the area of ​​the photosensitive opening 20 at each position of the first display area A1 and the area of ​​the photosensitive opening 20 used in the related art with the same transmittance. At this time, the area of ​​the photosensitive opening 20 of the fourth sub-area A112c is the same as the area of ​​the photosensitive opening 20 used in the related art, while the area of ​​the photosensitive opening 20 of other photosensitive sub-areas is larger than the area of ​​the photosensitive opening 20 used in the related art, and the area of ​​the photosensitive opening 20 of the photosensitive sub-area closer to the center is larger. Therefore, at this time, compared with the related art, the sensing sensitivity of the photosensitive device can be significantly improved.

[0234] Of course, the area of ​​the photosensitive opening 20 of the fourth sub-area A112c may also be different from the area of ​​the photosensitive opening 20 used in the related art, and the area of ​​the photosensitive opening 20 of each photosensitive sub-area A11 may be adjusted according to actual product requirements.

[0235] The larger the area of ​​the photosensitive opening 20 of the isolation structure 100 is, the higher the transmittance is.

[0236] In this embodiment, the areas of the photosensitive openings 20 of at least three photosensitive sub-areas A11 gradually decrease from the inside to the outside, which can effectively achieve that the transmittance of the at least three photosensitive sub-areas A11 gradually decreases from the inside to the outside.

[0237] At the same time, the area of ​​the photosensitive opening 20 of each photosensitive sub-area A11 changes in a gradual manner, so that the line width of the isolation structure 100 in each photosensitive sub-area A11 can be gradually changed, thereby reducing the etching load effect during the preparation process of the isolation structure 100, thereby reducing the risk of fracture of the isolation structure 100. At the same time, the area of ​​the photosensitive opening 20 of at least three photosensitive sub-areas A11 changes in a gradual manner, which can also reduce the stress between the isolation structures 100 in adjacent photosensitive sub-areas A11, thereby further reducing the risk of fracture of the isolation structure 100.

[0238] In one embodiment, the light emitting device 200 includes a first color device, a second color device, and a third color device. The light emitting structures 220 of the light emitting devices 200 of different colors are made of different materials, so that they can emit light of different colors.

[0239] See also Figure 7 The isolation opening 10 includes a first opening 10a, a second opening 10b and a third opening 10c. The first color device is at least partially located in the first opening 10a. The second color device is at least partially located in the second opening 10b. The third color device is at least partially located in the third opening 10c.

[0240] During the preparation of the display panel, multiple first color devices may be prepared in multiple first openings 10a first, then multiple second color devices may be prepared in multiple second openings 10b, and finally multiple third color devices may be prepared in multiple third openings 10c.

[0241] A group of the first color device, the second color device, and the third color device may form a pixel unit, thereby forming a plurality of pixel units.

[0242] In at least three photosensitive sub-areas A11, the first openings 10a have the same shape and area. Specifically, the first openings 10a in the same photosensitive sub-area A11 have the same shape and area. The first openings 10a in different photosensitive sub-areas A11 also have the same shape and area.

[0243] In at least three photosensitive sub-areas A11, the second openings 10b have the same shape and area. Specifically, the shapes and areas of different second openings 10b in the same photosensitive sub-area A11 are the same. The shapes and areas of the second openings 10b in different photosensitive sub-areas A11 are also the same.

[0244] In at least three photosensitive sub-areas A11, the third openings 10c have the same shape and area. Specifically, different third openings 10c in the same photosensitive sub-area A11 have the same shape and area. Third openings 10c in different photosensitive sub-areas A11 also have the same shape and area.

[0245] As an example, the shapes and / or areas of the first opening 10a, the second opening 10b, and the third opening 10c in the same photosensitive sub-area A11 may be different. For example, the first color device may be a blue light-emitting device 200, and the second color device may be, for example, a green light-emitting device 200. The third color device may be, for example, a red light-emitting device 200. At this time, in the same photosensitive sub-area A11, the areas of the first opening 10a, the second opening 10b, and the third opening 10c may be reduced in sequence. When the display panel includes a pixel opening 30, in the same photosensitive sub-area A11, the areas of the pixel openings 30 corresponding to the first opening 10a, the second opening 10b, and the third opening 10c may also be reduced in sequence.

[0246] As an example, in the same photosensitive sub-area A11, the shapes and / or areas of the photosensitive openings 20 located at different positions of the first opening 10a may not be completely the same or completely different. In the same photosensitive sub-area A11, the shapes and / or areas of the photosensitive openings 20 located at different positions of the second opening 10b may not be completely the same or completely different. In the same photosensitive sub-area A11, the shapes and / or areas of the photosensitive openings 20 located at different positions of the third opening 10c may not be completely the same or completely different.

[0247] In different photosensitive sub-areas A11, the areas of the photosensitive openings 20 located at the same position of the first opening 10a decrease from the inside to the outside.

[0248] For example, in different photosensitive sub-areas A11 , the areas of the photosensitive openings 20 located above, below, to the left, and to the right of the first opening 10 a gradually increase from the inside to the outside.

[0249] And / or, in different photosensitive sub-areas A11, the areas of the photosensitive openings 20 located at the same position of the second opening 10b decrease from the inside to the outside.

[0250] For example, in different photosensitive sub-areas A11, the areas of the photosensitive openings 20 located above, below, to the left, and to the right of the second opening 10b decrease sequentially from the inside to the outside.

[0251] And / or, in different photosensitive sub-areas A11, the areas of the photosensitive openings 20 located at the same position of the third opening 10c gradually decrease from inside to outside.

[0252] For example, in different photosensitive sub-areas A11, the areas of the photosensitive openings 20 located at different positions of the third opening 10c gradually decrease from the inside to the outside.

[0253] Optionally, the at least three photosensitive sub-areas A11 include a first sub-area A111 and a second sub-area A112a, a third sub-area A112b and a fourth sub-area A112c which are sequentially arranged around the first sub-area A111.

[0254] In the first sub-area A111, the second sub-area A112a, the third sub-area A112b and the fourth sub-area A112c, the areas of the photosensitive openings located at the same position of the first opening decrease successively.

[0255] And / or, in the first sub-area A111, the second sub-area A112a, the third sub-area A112b and the fourth sub-area A112c, the areas of the photosensitive openings located at the same position of the second opening decrease successively.

[0256] And / or, in the first sub-area A111, the second sub-area A112a, the third sub-area A112b and the fourth sub-area A112c, the areas of the photosensitive openings located at the same position of the third opening decrease successively.

[0257] In this embodiment, by setting the areas of the photosensitive openings 20 located at the same opening and the same orientation in different photosensitive sub-areas A11 to gradually decrease from the inside to the outside, the transmittance of at least three photosensitive sub-areas A11 can be effectively reduced from the inside to the outside.

[0258] In one embodiment, see Figure 7 , the display panel also includes a touch line 500 .

[0259] The touch control trace 500 is located on a side of the substrate away from the photosensitive device.

[0260] Optionally, the touch line 500 is located on a side of the isolation structure 100 away from the photosensitive device, so that the display panel can have a touch function. The material of the touch line 500 can include but is not limited to metal material.

[0261] Meanwhile, the orthographic projection of the touch line 500 on the substrate is located within the orthographic projection of the isolation structure 100 on the substrate. At this time, in the first display area A1, the orthographic projection of the touch line 500 on the substrate can surround the orthographic projection of the isolation opening 10 on the substrate and the orthographic projection of the photosensitive opening 20 on the substrate.

[0262] The line width of the touch wiring 500 of at least three photosensitive sub-areas A11 gradually increases from the inside to the outside.

[0263] As an example, the at least three photosensitive sub-areas A11 include a first sub-area A111 and a second sub-area A112a, a third sub-area A112b and a fourth sub-area A112c which are sequentially arranged around the first sub-area A111.

[0264] The first sub-area is provided with a first touch control line. And / or, the second sub-area is provided with a second touch control line. And / or, the third sub-area is provided with a third touch control line. And / or, the fourth sub-area is provided with a fourth touch control line.

[0265] Optionally, the line width of the first touch line is smaller than the line width of the second touch line. And / or, the line width of the second touch line is smaller than the line width of the third touch line. And / or, the line width of the third touch line is smaller than the line width of the fourth touch line.

[0266] Optionally, the line width of the first touch line in the first sub-area A111 is L1, the line width of the second touch line in the second sub-area A112a is L1, the line width of the third touch line in the third sub-area A112b is L2, and the line width of the fourth touch line in the fourth sub-area A112c is L3. Then L1 <L2<L3<L4。

[0267] Optionally, the line width of the touch line 500 in the fourth sub-area A112c is a preset line width, that is, the line width of the touch line 500 in the outermost photosensitive sub-area A11 is a preset line width.

[0268] The preset line width may be, for example, the line width of the touch line 500 at each position of the first display area A1 and the line width used in the related art with the same transmittance. At this time, the line width of the touch line 500 in the fourth sub-area A112c is the same as the line width of the touch line 500 used in the related art, while the line width of the touch line 500 in other photosensitive sub-areas is greater than the line width of the touch line 500 used in the related art, and the line width of the touch line 500 in the annular sub-area A112 closer to the center is smaller. Therefore, at this time, compared with the related art, the sensing sensitivity of the photosensitive device can be significantly improved.

[0269] Of course, the line width of the touch line 500 in the first sub-area A111 may also be different from the line width of the touch line 500 used in the related art, and the line width of the touch line 500 in each photosensitive sub-area A11 may be adjusted according to actual product requirements.

[0270] In the actual production process, affected by factors such as alignment error and line width fluctuation, the touch line 500 may block the photosensitive opening 20 , thereby reducing the actual transmittance of the photosensitive opening 20 .

[0271] In this embodiment, the line width of the touch wiring 500 of at least three photosensitive sub-areas A11 is gradually reduced and increased from the inside to the outside. Therefore, the closer to the center of the first display area A1, the smaller the line width of the touch wiring 500, and the smaller the probability that the touch wiring 500 will block the photosensitive opening 20, so that the transmittance of at least three photosensitive sub-areas A11 can be effectively reduced from the inside to the outside.

[0272] At the same time, the smaller the line width, the thinner the line, and the easier it is to break the line. In this embodiment, the line width of the touch line 500 of at least three photosensitive sub-areas A11 gradually increases from the inside to the outside, and the thinner touch line 500 is located at the center of the first display area A1. The closer to the edge of the first display area A1, the larger the line width of the touch line 500, and the line width of the touch line 500 gradually changes, thereby reducing the risk of line breakage.

[0273] At the same time, when the number of the photosensitive sub-areas A11 is at least three, the line width of the touch wiring 500 of each photosensitive sub-area A11 changes in a gradual manner, thereby reducing the etching load effect during the preparation process of the touch wiring 500, thereby further reducing the risk of fracture of the touch wiring 500. At the same time, the line width of the touch wiring 500 of at least three photosensitive sub-areas A11 changes in a gradual manner, which can also reduce the stress between the touch wirings 500 in adjacent photosensitive sub-areas A11, thereby further reducing the risk of fracture of the isolation structure 100.

[0274] Of course, in other embodiments, the setting manner of the touch wiring 500 is not limited to this. For example, in some embodiments, when the photosensitive openings of at least two photosensitive sub-areas A11 gradually decrease from the inside to the outside, the line widths of the touch wiring 500 of at least two photosensitive sub-areas A11 may be set to be the same. Alternatively, when the photosensitive openings of at least two photosensitive sub-areas A11 gradually decrease from the inside to the outside, the line widths of the touch wiring 500 of at least two photosensitive sub-areas A11 may also be set to gradually decrease from the inside to the outside. It is sufficient to ensure that the light transmittance of at least two photosensitive sub-areas A11 gradually decreases from the inside to the outside.

[0275] In other embodiments, when the line width of the touch wiring 500 of at least two photosensitive sub-areas A11 gradually increases from the inside to the outside, the photosensitive openings of at least two photosensitive sub-areas A11 are not limited to gradually decreasing from the inside to the outside. For example, in some embodiments, when the line width of the touch wiring 500 of at least two photosensitive sub-areas A11 gradually increases from the inside to the outside, the sizes of the photosensitive openings of at least two photosensitive sub-areas A11 may also be the same. Alternatively, when the line width of the touch wiring 500 of at least two photosensitive sub-areas A11 gradually increases from the inside to the outside, the sizes of the photosensitive openings of at least two photosensitive sub-areas A11 may also gradually increase from the inside to the outside. It is sufficient to ensure that the light transmittance of at least two photosensitive sub-areas A11 gradually decreases from the inside to the outside.

[0276] In one embodiment, the line widths of the touch lines 500 in the same photosensitive sub-area A11 are the same, thereby facilitating process processing.

[0277] Of course, in other embodiments, the line width of the touch wiring 500 in the same photosensitive sub-area A11 may also be different, and can be specifically set according to actual needs.

[0278] In one embodiment, a display device (not shown) is further provided. The display device includes the display panel in the above embodiment.

[0279] It can be understood that the display device in the embodiments of the present application can be an OLED display device, a QLED display device, electronic paper, a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, a wearable device, an Internet of Things device, or any other product or component with a display function, and the embodiments disclosed in the present application are not limited to this.

[0280] In the description of this specification, the description with reference to the terms "one embodiment", "other embodiments", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0281] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0282] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: The display panel comprises a substrate and a photosensitive device located on the substrate, and the display panel has a first display area, and an orthographic projection of the first display area on the substrate at least partially overlaps with an orthographic projection of the photosensitive device on the substrate; The first display area includes at least two photosensitive sub-areas, and the smaller the distance from the edge of the photosensitive device, the greater the transmittance of the photosensitive sub-area.

2. The display panel according to claim 1, characterized in that: The display panel has a second display area at least partially surrounding the first display area, and the transmittance of the first display area is greater than the transmittance of the second display area. The at least two photosensitive sub-areas are arranged in a ring in sequence, and the closer the photosensitive sub-area is to the second display area, the greater the transmittance; Optionally, the at least two photosensitive sub-areas include a first sub-area and at least one annular sub-area surrounding the first sub-area; Optionally, the annular sub-region includes a second sub-region, and the transmittance of the first sub-region is less than the transmittance of the second sub-region; Optionally, a distance from the centroid of the first display area to the first sub-area is smaller than a distance from the centroid of the first display area to the second sub-area; Optionally, the centroid of the first sub-area coincides with the centroid of the first display area; Optionally, the orthographic projection of the photosensitive device on the substrate includes a central area, and the centroid of the central area coincides with the centroid of the first sub-area; Optionally, the orthographic projection of the first sub-area on the substrate covers the orthographic projection of the central area on the substrate; Optionally, the orthographic projection of the first sub-area on the substrate coincides with the orthographic projection of the central area on the substrate; Optionally, the orthographic projection of the first display area on the substrate coincides with the orthographic projection of the photosensitive device on the substrate; Optionally, the annular sub-area includes a third sub-area and a fourth sub-area, the third sub-area is arranged around the second sub-area, and the fourth sub-area is arranged around the third sub-area; Optionally, the shape of the first sub-area is the same as the shape of the first display area; Optionally, the inner edge of the second sub-area coincides with the edge of the first sub-area, the inner edge of the third sub-area coincides with the outer edge of the second sub-area, and the outer edge of the third sub-area coincides with the inner edge of the fourth sub-area; Optionally, an outer edge of the fourth sub-area coincides with an edge of the first display area; Optionally, the shape of the first display area is circular, square or triangular.

3. The display panel according to claim 1, characterized in that: The display panel further includes: An isolation structure is located on a side of the photosensitive device away from the substrate, at least a portion of the isolation structure surrounds the isolation opening, and in the first display area, at least a portion of the isolation structure surrounds the photosensitive opening; a light emitting device, at least partially located in the isolation opening; Optionally, the display panel also includes a pixel definition layer, which is located on a side of the isolation structure close to the photosensitive device, and the pixel definition layer is arranged to form a pixel opening, the pixel opening is connected to the isolation opening, and the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the isolation opening on the substrate.

4. The display panel according to claim 3, characterized in that: The display panel has a second display area at least partially surrounding the first display area, and the transmittance of the first display area is greater than the transmittance of the second display area. The areas of the orthographic projections of the photosensitive openings in the same photosensitive sub-region on the substrate are equal, the at least two photosensitive sub-regions are arranged in a ring in sequence, and the closer the photosensitive sub-region is to the second display region, the larger the area of ​​the photosensitive opening; Optionally, the at least two photosensitive sub-areas include a first sub-area and a second sub-area, a third sub-area and a fourth sub-area sequentially arranged around the first sub-area, The first sub-area is provided with a first photosensitive opening, and / or the second sub-area is provided with a second photosensitive opening, and / or the third sub-area is provided with a third photosensitive opening, and / or the fourth sub-area is provided with a fourth photosensitive opening; Optionally, the area of ​​the orthographic projection of the first photosensitive opening on the substrate is smaller than the area of ​​the orthographic projection of the second photosensitive opening on the substrate, and / or the area of ​​the orthographic projection of the second photosensitive opening on the substrate is smaller than the area of ​​the orthographic projection of the third photosensitive opening on the substrate, and / or the area of ​​the orthographic projection of the third photosensitive opening on the substrate is smaller than the area of ​​the orthographic projection of the fourth photosensitive opening on the substrate.

5. The display panel according to claim 3, characterized in that: The light emitting device includes a first color device, a second color device and a third color device, the isolation opening includes a first opening, a second opening and a third opening, the first color device is at least partially located in the first opening, the second color device is at least partially located in the second opening, and the third color device is at least partially located in the third opening. In the at least two photosensitive sub-areas, the first opening has the same shape and area; in the at least two photosensitive sub-areas, the second opening has the same shape and area; in the at least two photosensitive sub-areas, the third opening has the same shape and area; The at least two photosensitive sub-areas are arranged in a ring in sequence; In different photosensitive sub-areas, the areas of the photosensitive openings located at the same position of the first opening increase from inside to outside; and / or, in different photosensitive sub-areas, the areas of the photosensitive openings located at the same position of the second opening increase from inside to outside; and / or, in different photosensitive sub-areas, the areas of the photosensitive openings located at the same position of the third opening increase from inside to outside; Optionally, the at least two photosensitive sub-areas include a first sub-area and a second sub-area, a third sub-area and a fourth sub-area sequentially arranged around the first sub-area, In the first sub-zone, the second sub-zone, the third sub-zone and the fourth sub-zone, the area of ​​the photosensitive openings located at the same position of the first opening increases successively; and / or, in the first sub-zone, the second sub-zone, the third sub-zone and the fourth sub-zone, the area of ​​the photosensitive openings located at the same position of the second opening increases successively; and / or, in the first sub-zone, the second sub-zone, the third sub-zone and the fourth sub-zone, the area of ​​the photosensitive openings located at the same position of the third opening increases successively.

6. The display panel according to claim 3, characterized in that: The display panel further includes: A touch control wiring, the touch control wiring is located on a side of the substrate away from the photosensitive device; Optionally, the touch control wiring is located on a side of the isolation structure away from the photosensitive device, and an orthographic projection of the touch control wiring on the substrate is located within an orthographic projection of the isolation structure on the substrate; The line width of the touch lines of the at least two photosensitive sub-areas gradually decreases from the inside to the outside; Optionally, the at least two photosensitive sub-areas include a first sub-area and a second sub-area, a third sub-area and a fourth sub-area sequentially arranged around the first sub-area, The first sub-area is provided with a first touch line, and / or the second sub-area is provided with a second touch line, and / or the third sub-area is provided with a third touch line, and / or the fourth sub-area is provided with a fourth touch line; Optionally, the line width of the first touch line is greater than the line width of the second touch line, and / or the line width of the second touch line is greater than the line width of the third touch line, and / or the line width of the third touch line is greater than the line width of the fourth touch line.

7. The display panel according to claim 6, characterized in that: The line widths of the touch lines in the same photosensitive sub-area are the same.

8. A display panel, characterized in that: The display panel includes a substrate and a photosensitive device located on the substrate, and the display panel has a first display area, the orthographic projection of the first display area on the substrate at least partially overlaps with the orthographic projection of the photosensitive device on the substrate, the first display area includes at least three photosensitive sub-areas arranged in a ring in sequence, the distance between the at least three photosensitive sub-areas and the center of the photosensitive device increases from the inside to the outside, and the transmittance of the at least three photosensitive sub-areas gradually decreases from the inside to the outside.

9. The display panel according to claim 8, characterized in that: The display panel further includes: An isolation structure is located on a side of the photosensitive device away from the substrate, at least a portion of the isolation structure surrounds the isolation opening, and in the first display area, at least a portion of the isolation structure surrounds the photosensitive opening; The light emitting device is at least partially located in the isolation opening.

10. The display panel according to claim 9, characterized in that: The display panel further has a second display area at least partially surrounding the first display area, and the transmittance of the first display area is greater than the transmittance of the second display area. The areas of the orthographic projections of the photosensitive openings in the same photosensitive sub-region on the substrate are equal, and the closer the photosensitive sub-region is to the second display region, the smaller the area of ​​the photosensitive opening is; Optionally, the at least three photosensitive sub-areas include a first sub-area and a second sub-area, a third sub-area and a fourth sub-area sequentially arranged around the first sub-area, The first sub-area is provided with a first photosensitive opening, and / or the second sub-area is provided with a second photosensitive opening, and / or the third sub-area is provided with a third photosensitive opening, and / or the fourth sub-area is provided with a fourth photosensitive opening; Optionally, the area of ​​the orthographic projection of the first photosensitive opening on the substrate is larger than the area of ​​the orthographic projection of the second photosensitive opening on the substrate, and / or the area of ​​the orthographic projection of the second photosensitive opening on the substrate is larger than the area of ​​the orthographic projection of the third photosensitive opening on the substrate, and / or the area of ​​the orthographic projection of the third photosensitive opening on the substrate is larger than the area of ​​the orthographic projection of the fourth photosensitive opening on the substrate.

11. The display panel according to claim 9, characterized in that: The light emitting device includes a first color device, a second color device and a third color device, the isolation opening includes a first opening, a second opening and a third opening, the first color device is at least partially located in the first opening, the second color device is at least partially located in the second opening, and the third color device is at least partially located in the third opening. In the at least three photosensitive sub-areas, the first openings have the same shape and area; in the at least three photosensitive sub-areas, the second openings have the same shape and area; in the at least three photosensitive sub-areas, the third openings have the same shape and area; In different photosensitive sub-areas, the areas of the photosensitive openings located at the same position of the first opening decrease from inside to outside; and / or, in different photosensitive sub-areas, the areas of the photosensitive openings located at the same position of the second opening decrease from inside to outside; and / or, in different photosensitive sub-areas, the areas of the photosensitive openings located at the same position of the third opening decrease from inside to outside; Optionally, the at least three photosensitive sub-areas include a first sub-area and a second sub-area, a third sub-area and a fourth sub-area sequentially arranged around the first sub-area, In the first sub-zone, the second sub-zone, the third sub-zone and the fourth sub-zone, the area of ​​the photosensitive opening located at the same position of the first opening decreases successively; and / or, in the first sub-zone, the second sub-zone, the third sub-zone and the fourth sub-zone, the area of ​​the photosensitive opening located at the same position of the second opening decreases successively; and / or, in the first sub-zone, the second sub-zone, the third sub-zone and the fourth sub-zone, the area of ​​the photosensitive opening located at the same position of the third opening decreases successively.

12. The display panel according to claim 9, characterized in that: The display panel further includes: A touch control wiring, the touch control wiring is located on a side of the substrate away from the photosensitive device; Optionally, the touch control wiring is located on a side of the isolation structure away from the photosensitive device, and an orthographic projection of the touch control wiring on the substrate is located within an orthographic projection of the isolation structure on the substrate; The line width of the touch lines of the at least three photosensitive sub-areas gradually increases from the inside to the outside; Optionally, the at least two photosensitive sub-areas include a first sub-area and a second sub-area, a third sub-area and a fourth sub-area sequentially arranged around the first sub-area, The first sub-area is provided with a first touch line, and / or the second sub-area is provided with a second touch line, and / or the third sub-area is provided with a third touch line, and / or the fourth sub-area is provided with a fourth touch line; Optionally, the line width of the first touch line is smaller than the line width of the second touch line, and / or the line width of the second touch line is smaller than the line width of the third touch line, and / or the line width of the third touch line is smaller than the line width of the fourth touch line.

13. A display device, characterized in that: Comprising the display panel as described in any one of claims 1-12.

Images