Display panel, preparation method of display panel and electronic equipment

Abstract

The embodiment of the invention provides a display panel, a preparation method of the display panel and electronic equipment, and relates to the technical field of display, the display panel comprises a substrate, an isolation structure, a first optical structure layer and a second optical structure layer, the isolation structure comprises a plurality of light-transmitting openings, the first optical structure layer is located on the side, away from the substrate, of the isolation structure, and the second optical structure layer is located on the side, away from the substrate, of the isolation structure. The first optical structure layer comprises a first optical structure part, and the orthographic projection of the first optical structure part on the substrate and the orthographic projection of the light-transmitting opening on the substrate at least partially coincide; the second optical structure layer comprises a second optical structure part, and the orthographic projection of the second optical structure part on the substrate at least partially coincides with the orthographic projection of the first optical structure part on the substrate. And at least part of light rays reaching the first optical structure part through the second optical structure part are refracted on the contact surface of the second optical structure part and the first optical structure part and are converged in the light-transmitting opening. According to the display panel, the transmittance of the display panel at the light-transmitting opening can be improved.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) and flat panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display panels.

[0003] However, there are still some problems with display panels that need to be solved urgently. Summary of the invention

[0004] In order to overcome the technical problems mentioned in the above technical background, an embodiment of the present application provides a display panel, wherein the display panel includes a first display area and a second display area surrounding at least a portion of the first display area, and the display panel includes:

[0005] substrate;

[0006] An isolation structure, located at one side of the substrate, and arranged in the first display area and the second display area, wherein the isolation structure comprises a plurality of light-transmitting openings, and the plurality of light-transmitting openings are arranged in the first display area;

[0007] A first optical structure layer is located on a side of the isolation structure away from the substrate, the first optical structure layer comprises a first optical structure portion, an orthographic projection of the first optical structure portion on the substrate at least partially overlaps with an orthographic projection of the light-transmitting opening on the substrate;

[0008] A second optical structure layer is located on a side of the first optical structure layer away from the substrate;

[0009] The first optical structure portion is configured to refract at least a portion of incident light passing through the second optical structure layer and converge it into the light-transmitting opening.

[0010] In some possible implementations, the second optical structure layer includes a second optical structure portion, and an orthographic projection of the second optical structure portion on the substrate at least partially overlaps with an orthographic projection of the first optical structure portion on the substrate;

[0011] Preferably, the first optical structure layer and the second optical structure layer have different refractive indices;

[0012] Preferably, the first optical structure part is configured to refract at least part of the incident light passing through the second optical structure part and converge it into the light-transmitting opening;

[0013] The first optical structure part includes a first concave portion concave toward the substrate on a side away from the substrate, at least a portion of the second optical structure part is located in the first concave portion, and the refractive index of the second optical structure layer is greater than the refractive index of the first optical structure layer;

[0014] Preferably, the isolation structure further includes a plurality of isolation openings, and the plurality of isolation openings are respectively arranged in the first display area and the second display area.

[0015] In some possible implementations, the display panel further includes a light emitting unit at least partially located in the isolation opening and a third optical structure layer located between the light emitting unit and the first optical structure layer, the third optical structure layer includes a third optical structure portion, an orthographic projection of the third optical structure portion on the substrate at least partially overlaps with an orthographic projection of the light emitting unit on the substrate, the third optical structure portion protrudes toward a side away from the substrate, and a refractive index of the third optical structure layer is greater than a refractive index of the first optical structure layer;

[0016] The first optical structure layer further includes a fourth optical structure portion on the same layer as the first optical structure portion, the orthographic projection of the fourth optical structure portion on the substrate at least partially overlaps with the orthographic projection of the third optical structure portion on the substrate, and the fourth optical structure portion protrudes toward a side away from the substrate;

[0017] The second optical structure layer further includes a fifth optical structure portion, and an orthographic projection of the fifth optical structure portion on the substrate at least partially overlaps with an orthographic projection of the fourth optical structure portion on the substrate;

[0018] Preferably, the arc of the third optical structure portion protruding in the direction away from the substrate is at least partially equal to the arc of the fourth optical structure portion protruding in the direction away from the substrate;

[0019] Preferably, the plurality of isolation openings and the plurality of light-transmitting openings located in the first display area are arranged at intervals.

[0020] In some possible implementations, the fourth optical structure portion includes a first body sub-portion and a first protruding sub-portion stacked in a direction away from the substrate, and a cross-sectional contour line of the first protruding sub-portion is connected to a cross-sectional contour line of the first recessed portion in a direction perpendicular to the substrate;

[0021] Preferably, the refractive index of the first optical structure layer is greater than or equal to 1.3 and less than or equal to 1.6;

[0022] Preferably, the refractive index of the second optical structure layer is greater than or equal to 1.6 and less than or equal to 1.9;

[0023] Preferably, the refractive index of the third optical structure layer is greater than or equal to 1.6 and less than or equal to 1.9.

[0024] In some possible implementations, the first optical structure portion protrudes toward a side away from the substrate, and the refractive index of the second optical structure layer is smaller than the refractive index of the first optical structure layer;

[0025] Preferably, the isolation structure further includes a plurality of isolation openings, and the plurality of isolation openings are respectively arranged in the first display area and the second display area.

[0026] In some possible implementations, the display panel further includes a light emitting unit at least partially located in the isolation opening and a third optical structure layer located between the light emitting unit and the first optical structure layer, the third optical structure layer includes a third optical structure portion, an orthographic projection of the third optical structure portion on the substrate at least partially overlaps with an orthographic projection of the light emitting unit on the substrate, a side of the third optical structure portion away from the substrate includes a second recessed portion recessed toward the substrate, and a refractive index of the third optical structure layer is less than a refractive index of the first optical structure layer;

[0027] The first optical structure layer further includes a fourth optical structure portion on the same layer as the first optical structure portion, the orthographic projection of the fourth optical structure portion on the substrate at least partially overlaps with the orthographic projection of the third optical structure portion on the substrate, and the side of the fourth optical structure portion away from the substrate includes a third groove sunken toward the substrate;

[0028] The second optical structure layer further includes a fifth optical structure portion, and an orthographic projection of the fifth optical structure portion on the substrate at least partially overlaps with an orthographic projection of the fourth optical structure portion on the substrate;

[0029] Preferably, the arc angle of the second recessed portion in the direction of the substrate is at least partially equal to the arc angle of the third groove in the direction of the substrate;

[0030] Preferably, the plurality of isolation openings and the plurality of light-transmitting openings located in the first display area are arranged at intervals.

[0031] In some possible implementations, the first optical structure portion includes a second body sub-portion and a second protruding sub-portion stacked in a direction away from the substrate, and a cross-sectional contour line of the second protruding sub-portion is connected to a cross-sectional contour line of the third groove in a direction perpendicular to the substrate;

[0032] Preferably, the refractive index of the first optical structure layer is greater than or equal to 1.6 and less than or equal to 1.9;

[0033] Preferably, the refractive index of the second optical structure layer is greater than or equal to 1.3 and less than or equal to 1.6;

[0034] Preferably, the refractive index of the third optical structure layer is greater than or equal to 1.3 and less than or equal to 1.6.

[0035] In some possible implementations, the first optical structure portion and the fourth optical structure portion are integrally formed;

[0036] Preferably, the second optical structure layer includes a second optical structure part, and the second optical structure part and the fifth optical structure part are arranged in the same layer;

[0037] Preferably, the second optical structure portion and the fifth optical structure portion are integrally formed;

[0038] Preferably, the orthographic projection of the third optical structure portion on the substrate covers the orthographic projection of the light-emitting unit on the substrate;

[0039] Preferably, the orthographic projection of the fourth optical structure portion on the substrate covers the orthographic projection of the light emitting unit on the substrate;

[0040] Preferably, the orthographic projection of the fifth optical structure portion on the substrate covers the orthographic projection of the light-emitting unit on the substrate;

[0041] Preferably, the orthographic projection of the third optical structure portion on the substrate is located outside the orthographic projection of the light-transmitting opening on the substrate;

[0042] Preferably, the orthographic projection of the fourth optical structure portion on the substrate is located outside the orthographic projection of the light-transmitting opening on the substrate;

[0043] Preferably, the orthographic projection of the fifth optical structure portion on the substrate is outside the orthographic projection of the light-transmitting opening on the substrate;

[0044] Preferably, the fourth optical structure portion covers a side of the third optical structure portion away from the substrate;

[0045] Preferably, the fifth optical structure portion covers a side of the fourth optical structure portion away from the substrate;

[0046] Preferably, the first optical structure portion, the second optical structure portion, the third optical structure portion, the fourth optical structure portion and / or the fifth optical structure portion are in the shape of lenses.

[0047] In some possible implementations, the orthographic projection of the first optical structure portion on the substrate covers the orthographic projection of the light-transmitting opening on the substrate;

[0048] Preferably, the orthographic projection of the second optical structure portion on the substrate covers the orthographic projection of the light-transmitting opening on the substrate;

[0049] Preferably, the orthographic projection of the first optical structure portion on the substrate is located outside the orthographic projection of the isolation opening on the substrate;

[0050] Preferably, the orthographic projection of the second optical structure portion on the substrate is located outside the orthographic projection of the isolation opening on the substrate;

[0051] Preferably, the side of the second optical structure layer away from the substrate comprises a plane;

[0052] Preferably, the substrate comprises a light-transmitting area, and an orthographic projection of the light-transmitting area on the substrate at least partially overlaps with an orthographic projection of the light-transmitting opening on the substrate.

[0053] In some possible implementations, the display panel further includes a first encapsulation layer located on a side of the light-emitting unit away from the substrate, the first encapsulation layer including a plurality of encapsulation units arranged at intervals, and at least some of the encapsulation units extend from a side of the isolation structure toward the isolation opening to a side of the isolation structure away from the substrate;

[0054] Preferably, the packaging unit is spaced apart on a side of the isolation structure away from the substrate;

[0055] Preferably, a gap exists between the packaging unit located at a side of the isolation structure away from the substrate and a side of the isolation structure away from the substrate.

[0056] In some possible implementations, the display panel further includes a second encapsulation layer located on a side of the first encapsulation layer away from the substrate, and a third encapsulation layer located between the second encapsulation layer and the first optical structure layer;

[0057] Preferably, the third optical structure layer is located on a side of the third packaging unit away from the substrate;

[0058] Preferably, the materials of the first encapsulation layer and the third encapsulation layer both include inorganic materials;

[0059] Preferably, the material of the second encapsulation layer includes an organic material;

[0060] Preferably, the isolation structure comprises a first isolation portion and a second isolation portion which are sequentially stacked in a direction away from the substrate, and an orthographic projection of a side of the first isolation portion away from the substrate on the substrate is located within an orthographic projection of the second isolation portion on the substrate;

[0061] Preferably, the light-emitting unit comprises a first electrode, a light-emitting portion, and a second electrode sequentially stacked in a direction away from the substrate, and the first electrode is electrically connected to the first isolation portion; and / or, the isolation structure further comprises a third isolation portion located on a side of the first isolation portion facing the substrate, and the first electrode is electrically connected to the third isolation portion;

[0062] Preferably, the material of the third isolation portion includes molybdenum metal; and / or the material of the first isolation portion includes aluminum metal; and / or the material of the second isolation portion includes titanium metal.

[0063] In some possible implementations, the present application further provides a display panel, the display panel comprising a first display area and a second display area surrounding at least a portion of the first display area, the display panel comprising:

[0064] substrate;

[0065] An isolation structure, located at one side of the substrate, and arranged in the first display area and the second display area, wherein the isolation structure comprises a plurality of light-transmitting openings, and the plurality of light-transmitting openings are arranged in the first display area;

[0066] A first optical structure layer is located on a side of the isolation structure away from the substrate, the first optical structure layer comprises a first optical structure portion, an orthographic projection of the first optical structure portion on the substrate at least partially overlaps with an orthographic projection of the light-transmitting opening on the substrate;

[0067] a second optical structure layer, located on a side of the first optical structure layer away from the substrate, the second optical structure layer comprising a second optical structure portion, an orthographic projection of the second optical structure portion on the substrate at least partially overlapping with an orthographic projection of the first optical structure portion on the substrate;

[0068] The first optical structure part and the second optical structure part cooperate to form a first convex lens, and the orthographic projection of the first convex lens on the substrate at least partially overlaps with the orthographic projection of the light-transmitting opening on the substrate.

[0069] In some possible implementations, the display panel further includes a light emitting unit at least partially located in the isolation opening and a third optical structure layer located between the light emitting unit and the first optical structure layer, wherein the third optical structure layer includes a third optical structure portion;

[0070] The first optical structure layer further includes a fourth optical structure part in the same layer as the first optical structure part, the fourth optical structure part and the third optical structure part cooperate to form a second convex lens, and the orthographic projection of the second convex lens on the substrate at least partially overlaps with the orthographic projection of the light-emitting unit on the substrate;

[0071] The second optical structure layer also includes a fifth optical structure part on the same layer as the second optical structure part, the fifth optical structure part and the fourth optical structure part cooperate to form a concave lens, and the orthographic projection of the concave lens on the substrate at least partially overlaps with the orthographic projection of the second convex lens on the substrate.

[0072] In some possible implementations, the present application further provides a method for preparing a display panel, the display panel comprising a first display area and a second display area surrounding at least a portion of the first display area, the method comprising:

[0073] providing a substrate;

[0074] An isolation structure is formed on one side of the substrate, the isolation structure is arranged in the first display area and the second display area, the isolation structure includes a plurality of light-transmitting openings, and the plurality of light-transmitting openings are arranged in the first display area;

[0075] forming a first optical structure layer on a side of the isolation structure away from the substrate, the first optical structure layer comprising a first optical structure portion, an orthographic projection of the first optical structure portion on the substrate at least partially overlapping with an orthographic projection of the light-transmitting opening on the substrate;

[0076] A second optical structure layer is formed on a side of the first optical structure layer away from the substrate, and the first optical structure portion is configured to refract at least a portion of incident light passing through the second optical structure layer and converge it into the light-transmitting opening.

[0077] In some possible implementations, the present application further provides an electronic device, which includes the display panel described in the present application, or includes a display panel prepared by the method for preparing the display panel described in the present application.

[0078] Compared with the prior art, this application has the following beneficial effects:

[0079] A display panel, a method for preparing a display panel, and an electronic device provided in the present application can refract at least part of the incident light from the outside through the second optical structure layer and converge in the light-transmitting opening by setting a first optical structure portion on the side of the light-transmitting opening away from the substrate, thereby improving the transmittance of the display panel at the light-transmitting opening, and further improving the photosensitivity effect of the under-screen photosensitive device of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0081] Figure 1 A schematic cross-sectional view of a display panel in the related art provided by an embodiment of the present application;

[0082] Figure 2 A schematic top view of a display panel provided in an embodiment of the present application;

[0083] Figure 3 A schematic diagram of an enlarged top view of a first display area provided in an embodiment of the present application;

[0084] Figure 4 Provided in the embodiments of this application Figure 3 One of the cross-sectional views at AA in the middle;

[0085] Figure 5 Provided in the embodiments of this application Figure 3 The second cross-sectional view at AA in the middle;

[0086] Figure 6 Provided in the embodiments of this application Figure 3 One of the cross-sectional views at the middle BB;

[0087] Figure 7 Provided in the embodiments of this application Figure 3 The third cross-sectional view at AA in the middle;

[0088] Figure 8 Provided in the embodiments of this application Figure 3 The second cross-sectional view of the middle BB;

[0089] Fig. 9 Provided in the embodiments of this application Figure 3 The third cross-sectional view of the middle BB;

[0090] Fig.10 Provided in the embodiments of this application Figure 3 The fourth cross-sectional view of the middle BB;

[0091] Fig.11 A schematic diagram of a process for preparing a display panel provided in an embodiment of the present application;

[0092] Fig.12 A cross-sectional intention of forming a first electrode layer on one side of a substrate and forming a pixel defining material layer on a side of the first electrode layer away from the substrate provided in an embodiment of the present application;

[0093] Fig.13 The cross-sectional intention of forming an isolation material layer on a side of the pixel defining material layer away from the substrate provided in the embodiment of the present application;

[0094] Fig.14 The cross-sectional view after sequentially etching the isolation material layer and the pixel definition material layer provided in the embodiment of the present application;

[0095] Fig.15 A cross-sectional view of a light-emitting unit formed in an isolation opening and a packaging unit located on a side of the light-emitting unit away from a substrate provided in an embodiment of the present application;

[0096] Fig.16 A cross-sectional schematic diagram of sequentially forming a second encapsulation layer and a third encapsulation layer on a side of the encapsulation unit away from the substrate provided in an embodiment of the present application;

[0097] Fig.17 A cross-sectional schematic diagram of forming a third optical structure layer on a side of the third packaging layer away from the substrate provided in an embodiment of the present application;

[0098] Fig.18 The cross-sectional view of forming a first optical structure layer on a side of the third optical structure part and the third encapsulation layer away from the substrate provided in an embodiment of the present application.

[0099] Figure numerals: 1, photosensitive device; 2, substrate; 201, light-transmitting area; 3, isolation structure; 301, isolation opening; 31, first isolation portion; 32, second isolation portion; 33, third isolation portion; 4, light-transmitting opening; 5, first optical structure layer; 51, first optical structure portion; 511, second body sub-portion; 512, second protruding sub-portion; 513, first recessed portion; 52, fourth optical structure portion; 521, first body sub-portion; 522, first protruding sub-portion; 523, third Groove; 6, second optical structure layer; 61, second optical structure part; 62, fifth optical structure part; 7, third optical structure layer; 71, third optical structure part; 711, second recessed part; 8, pixel defining layer; 81, pixel opening; 9, first electrode; 10, light emitting part; 11, second electrode; 12, first encapsulation layer; 121, encapsulation unit; 13, second encapsulation layer; 14, third encapsulation layer; 15, pixel defining material layer; 16, isolation material layer; 17, light emitting unit. DETAILED DESCRIPTION

[0100] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0101] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0102] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0103] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0104] It should be noted that, in the absence of conflict, different features in the embodiments of the present application may be combined with each other.

[0105] Improving the density of light-emitting units in a display panel (i.e., pixel density) is an important way to improve display effects. However, the display panels currently made using fine metal evaporation mask (FMM) technology cannot further increase the density of light-emitting units due to technical limitations. The inventors have found through long-term research that in order to solve the technical problem that the density of light-emitting units cannot be further increased, an isolation structure is set in some display panels. When the light-emitting functional layer and the second electrode are evaporated in the entire layer, the light-emitting functional layer and the second electrode can be disconnected at the isolation structure. Through multiple evaporation and multiple etching processes (i.e., light-emitting unit patterning), light-emitting units of different colors can be formed in different isolation openings.

[0106] Among them, patent CN118251982A, patent 202410864269.8, patent PCT / CN2024 / 098407, patent PCT / CN2024 / 102783, patent PCT / CN2024 / 098217, patent PCT / CN20241099419 and patent PCT / CN20241099072 record relevant technical solutions of isolation structure and encapsulation layer, and their contents are incorporated into this application by reference for reference.

[0107] See also Figure 1 The display panel in the related art includes a substrate 2 and an isolation structure 3 located on one side of the substrate 2. The isolation structure 3 includes a light-transmitting opening 4. A photosensitive device 1 is arranged under the screen of the light-transmitting opening 4, such as a fingerprint sensor. External light reaches the photosensitive device 1 through the light-transmitting opening 4, and the photosensitive device 1 receives the external light to realize the corresponding function.

[0108] However, the transmittance of the light-transmitting opening 4 of the display panel in the related art is not high. For example, Figure 1 The dashed arrow in the middle indicates the light path of the external light. Figure 1 From the optical path in FIG, it can be seen that the external light is not easy to reach the photosensitive device 1, thereby affecting the performance of the under-screen photosensitive device 1 at the light-transmitting opening 4.

[0109] In order to solve the above-mentioned technical problems, the inventor innovatively designed the following technical solutions, and the specific implementation solutions of the present application will be described in detail below in conjunction with the accompanying drawings. It should be noted that the defects existing in the solutions in the above-mentioned prior art are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above-mentioned technical problems and the solutions proposed in this embodiment below for the above-mentioned problems should all be the contributions made by the inventor to the present application in the process of invention and creation, and should not be understood as the technical content known to those skilled in the art.

[0110] See also Figure 2-Figure 4 This embodiment provides a display panel, which includes a first display area AA1 and a second display area AA2 surrounding at least a portion of the first display area AA1. The display panel includes a substrate 2, an isolation structure 3, a first optical structure layer 5 and a second optical structure layer 6.

[0111] The substrate 2 may include a substrate and a plurality of drive units located on one side of the substrate, and each drive unit may include one or more semiconductor switch devices. The semiconductor switch device may be formed by the cooperation of a plurality of film layers in the substrate 2, for example, the semiconductor switch device may be a thin film transistor formed by the cooperation of a plurality of film layers.

[0112] The isolation structure 3 is located on one side of the substrate 2 and is disposed in the first display area AA1 and the second display area AA2. The isolation structure 3 includes a plurality of light-transmitting openings 4, and the plurality of light-transmitting openings 4 are disposed in the first display area AA1.

[0113] The first display area AA1 and the second display area AA2 are both display areas of the display panel. A photosensitive device 1 is arranged under the screen of the light-transmitting opening 4, such as a fingerprint sensor, and external light reaches the photosensitive device 1 through the light-transmitting opening 4. The photosensitive device 1 receives the external light to realize the corresponding function.

[0114] The first optical structure layer 5 is located on a side of the isolation structure 3 away from the substrate 2 . The first optical structure layer 5 includes a first optical structure portion 51 . The orthographic projection of the first optical structure portion 51 on the substrate 2 at least partially overlaps with the orthographic projection of the light-transmitting opening 4 on the substrate 2 .

[0115] The second optical structure layer 6 is located on a side of the first optical structure layer 5 away from the substrate 2 .

[0116] The first optical structure portion 51 is configured to refract at least a portion of the incident light passing through the second optical structure layer 6 and converge the light into the light-transmitting opening 4 .

[0117] Please see again Figure 4, external light enters from the second optical structure layer 6. Since there is a difference in refractive index between the second optical structure layer 6 and the first optical structure part 51, the first optical structure part 51 can refract at least part of the incident light that passes through the second optical structure layer 6 and then converge at the light-transmitting opening 4, and project from the light-transmitting opening 4 to the photosensitive device 1. In this way, more external light can reach the light-transmitting opening 4 through the first optical structure part 51, thereby improving the transmittance of the light-transmitting opening 4 (that is, when the orthographic projection area of ​​the light-transmitting opening 4 on the substrate 2 is the same, more light can pass through the light-transmitting opening 4), and finally the photosensitive device 1 can receive more external light, thereby improving the photosensitivity of the photosensitive device 1 of the display panel.

[0118] Based on the above design, this embodiment sets a first optical structure portion 51 on the side of the light-transmitting opening 4 away from the substrate 2, so that at least part of the incident light from the outside through the second optical structure layer 6 can be refracted and converged in the light-transmitting opening 4, thereby improving the transmittance of the display panel at the light-transmitting opening 4, and further improving the photosensitivity effect of the under-screen photosensitive device 1 of the display panel.

[0119] For some possible implementations, see again Figure 4 The second optical structure layer 6 includes a second optical structure portion 61 , and the orthographic projection of the second optical structure portion 61 on the substrate 2 at least partially overlaps with the orthographic projection of the first optical structure portion 51 on the substrate 2 .

[0120] Optionally, the first optical structure part 51 is configured to refract at least a portion of the incident light passing through the second optical structure part 61 and converge it into the light-transmitting opening 4 .

[0121] Optionally, the first optical structure layer 5 and the second optical structure layer 6 have different refractive indices.

[0122] External light enters from the second optical structure part 61. Since there is a difference in refractive index between the second optical structure part 61 and the first optical structure part 51, the first optical structure part 51 can refract at least part of the incident light passing through the second optical structure part 61 and converge at the light-transmitting opening 4, and project from the light-transmitting opening 4 to the photosensitive device 1. In this way, more external light can reach the light-transmitting opening 4 through the second optical structure part 61 and the first optical structure part 51, thereby improving the transmittance of the light-transmitting opening 4.

[0123] See also Figure 5 The side of the first optical structure portion 51 away from the substrate 2 includes a first recessed portion 513 recessed toward the substrate 2 , at least part of the second optical structure portion 61 is located in the first recessed portion 513 , and the refractive index of the second optical structure layer 6 is greater than the refractive index of the first optical structure layer 5 .

[0124] The side of the first optical structure portion 51 away from the substrate 2 includes a concave surface that is recessed in the direction close to the substrate 2, and the orthographic projection of the concave surface on the substrate 2 at least partially overlaps with the orthographic projection of the light-transmitting opening 4 on the substrate 2. The side of the second optical structure portion 61 close to the substrate 2 includes a convex surface that protrudes in the direction close to the substrate 2, and the orthographic projection of the convex surface on the substrate 2 at least partially overlaps with the orthographic projection of the light-transmitting opening 4 on the substrate 2. The convex surface of the second optical structure portion 61 is in contact with the concave surface of the first optical structure portion 51. In this way, when external light reaches the contact surface between the first optical structure portion 51 and the second optical structure portion 61, it is easier to make more external light converge in the light-transmitting opening 4.

[0125] Optionally, the substrate 2 includes a light-transmitting area 201, and the orthographic projection of the light-transmitting area 201 on the substrate 2 at least partially overlaps with the orthographic projection of the light-transmitting opening 4 on the substrate 2. In this way, the light gathered at the light-transmitting opening 4 can more easily pass through the light-transmitting area 201 and reach the photosensitive device 1.

[0126] Preferably, see Figure 3 and Figure 6 The isolation structure 3 also includes a plurality of isolation openings 301, which are respectively arranged in the first display area AA1 and the second display area AA2. The display panel also includes a light-emitting unit 17 at least partially located in the isolation openings 301 and a third optical structure layer 7 located between the light-emitting unit 17 and the first optical structure layer 5. The third optical structure layer 7 includes a third optical structure portion 71, and the orthographic projection of the third optical structure portion 71 on the substrate 2 at least partially overlaps with the orthographic projection of the light-emitting unit 17 on the substrate 2. The third optical structure portion 71 protrudes to the side away from the substrate 2, and the refractive index of the third optical structure layer 7 is greater than the refractive index of the first optical structure layer 5.

[0127] The first optical structure layer 5 further includes a fourth optical structure portion 52 on the same layer as the first optical structure portion 51 , the orthographic projection of the fourth optical structure portion 52 on the substrate 2 at least partially overlaps with the orthographic projection of the third optical structure portion 71 on the substrate 2 , and the fourth optical structure portion 52 protrudes toward a side away from the substrate 2 .

[0128] The second optical structure layer 6 further includes a fifth optical structure part 62 in the same layer as the second optical structure part 61 , and the orthographic projection of the fifth optical structure part 62 on the substrate 2 at least partially overlaps with the orthographic projection of the fourth optical structure part 52 on the substrate 2 .

[0129] Optionally, the plurality of isolation openings 301 and the plurality of light-transmitting openings 4 located in the first display area AA1 are arranged at intervals.

[0130] The side of the third optical structure portion 71 away from the substrate 2 includes a convex surface protruding in the direction away from the substrate 2, and the orthographic projection of the convex surface on the substrate 2 at least partially overlaps with the orthographic projection of the light-emitting unit 17 on the substrate 2; the side of the fourth optical structure portion 52 close to the substrate 2 includes a concave surface recessed in the direction away from the substrate 2, and the orthographic projection of the concave surface on the substrate 2 at least partially overlaps with the orthographic projection of the light-emitting unit 17 on the substrate 2, and the concave surface of the fourth optical structure portion 52 is in contact with the convex surface of the third optical structure portion 71.

[0131] The side of the fourth optical structure portion 52 away from the substrate 2 includes a convex surface protruding in the direction away from the substrate 2, and the orthographic projection of the convex surface on the substrate 2 at least partially overlaps with the orthographic projection of the light-emitting unit 17 on the substrate 2; the side of the fifth optical structure portion 62 close to the substrate 2 includes a concave surface recessed in the direction away from the substrate 2, and the orthographic projection of the concave surface on the substrate 2 at least partially overlaps with the orthographic projection of the light-emitting unit 17 on the substrate 2, and the concave surface of the fifth optical structure portion 62 is in contact with the convex surface of the fourth optical structure portion 52.

[0132] The refractive index of the third optical structure layer 7 is greater than that of the first optical structure layer 5, the refractive index of the second optical structure layer 6 is greater than that of the first optical structure layer 5, and the third optical structure portion 71 and the fourth optical structure portion 52 both protrude toward the side away from the substrate 2. In this way, when the light emitted by the light-emitting unit 17 reaches the contact surface between the third optical structure portion 71 and the fourth optical structure portion 52, the light of the light-emitting unit 17 will be converged, and when it reaches the contact surface between the fourth optical structure portion 52 and the fifth optical structure portion 62, the light will be diverged. On the whole, the light of a large viewing angle that passes through the third optical structure portion 71, the fourth optical structure portion 52 and the fifth optical structure portion 62 in sequence will be converged to a positive viewing angle.

[0133] In this way, while improving the transmittance of the light-transmitting opening 4 of the display panel, the emission rate of the light-emitting unit 17 can be improved, thereby improving the display performance of the display panel.

[0134] Preferably, the curvature of the third optical structure part 71 protruding in the direction away from the substrate 2 is at least partially equal to the curvature of the fourth optical structure part 52 protruding in the direction away from the substrate 2. In this way, the light of the light-emitting unit 17 with a large viewing angle can be more easily converged to the normal viewing angle, thereby further improving the light extraction rate of the light-emitting unit 17.

[0135] For some possible implementations, see again Figure 6The light-emitting unit 17 includes a first electrode 9, a light-emitting portion 10, and a second electrode 11 which are sequentially stacked in a direction away from the substrate 2. The display panel also includes a pixel defining layer 8 located on a side of the first electrode 9 away from the substrate 2, and the isolation structure 3 is located on a side of the pixel defining layer 8 away from the substrate 2; the pixel defining layer 8 includes a pixel opening 81 exposing at least a portion of the first electrode 9, and the orthographic projection of the pixel opening 81 on the substrate 2 is located within the orthographic projection of the isolation opening 301 on the substrate 2.

[0136] The setting of the isolation structure 3 enables the display panel to form film layers of light-emitting units 17 of different colors in different isolation openings 301 without the need for a fine metal mask. When forming a light-emitting functional layer, the light-emitting functional layer will be separated by the isolation structure 3 to form a plurality of light-emitting portions 10 arranged at intervals. When forming a second electrode layer, the second electrode layer will be separated by the isolation structure 3 to form a plurality of second electrodes 11 arranged at intervals. The isolation structure 3 includes a conductive material. The second electrode 11 is electrically connected to the isolation structure 3. A first electrode 9, a light-emitting portion 10 and a second electrode 11 form a light-emitting unit 17. Among them, the first electrode 9 can be an anode, and the second electrode 11 can be a cathode.

[0137] In this way, different light-emitting units 17 can be made independent of each other, thereby improving the crosstalk between adjacent light-emitting units 17 and improving the display effect of the display panel. At the same time, due to the presence of the isolation structure 3, the light-emitting functional layer and the second electrode layer in the light-emitting unit 17 of each color in the display panel can be first prepared on the entire surface and then patterned, thereby eliminating the need for a fine metal mask, thereby saving the manufacturing cost of the display panel.

[0138] In some possible implementations, the fourth optical structure portion 52 includes a first body sub-portion 521 and a first protruding sub-portion 522 stacked in a direction away from the substrate 2, and a cross-sectional contour line of the first protruding sub-portion 522 is connected to a cross-sectional contour line of the first recessed portion 513 in a direction perpendicular to the substrate 2. In this way, the transmittance at the light-transmitting opening 4 can be further improved, and the light extraction rate of the light-emitting unit 17 can be further improved.

[0139] In this embodiment, the refractive index of the first optical structure layer 5 is greater than or equal to 1.3 and less than or equal to 1.6. For example, the refractive index of the first optical structure layer 5 may be 1.3, 1.4, 1.5 or 1.6.

[0140] Optionally, the refractive index of the second optical structure layer 6 is greater than or equal to 1.6 and less than or equal to 1.9. For example, the refractive index of the second optical structure layer 6 may be 1.6, 1.7, 1.8 or 1.9.

[0141] Optionally, the refractive index of the third optical structure layer 7 is greater than or equal to 1.6 and less than or equal to 1.9. For example, the refractive index of the third optical structure layer 7 may be 1.6, 1.7, 1.8 or 1.9.

[0142] Another implementation scheme of the present application is introduced below.

[0143] For some possible implementations, see Figure 3 and Figure 7 The first optical structure portion 51 protrudes toward a side away from the substrate 2 , and the refractive index of the second optical structure layer 6 is smaller than the refractive index of the first optical structure layer 5 .

[0144] The side of the first optical structure portion 51 away from the substrate 2 includes a convex surface that protrudes in the direction away from the substrate 2, and the orthographic projection of the convex surface on the substrate 2 at least partially overlaps with the orthographic projection of the light-transmitting opening 4 on the substrate 2. The side of the second optical structure portion 61 close to the substrate 2 includes a concave surface that is recessed in the direction away from the substrate 2, and the orthographic projection of the concave surface on the substrate 2 at least partially overlaps with the orthographic projection of the light-transmitting opening 4 on the substrate 2. The concave surface of the second optical structure portion 61 contacts the convex surface of the first optical structure portion 51. In this way, when external light reaches the contact surface between the first optical structure portion 51 and the second optical structure portion 61, it is easier to make more external light converge in the light-transmitting opening 4.

[0145] Preferably, see Figure 3 and Figure 8 The side of the third optical structure portion 71 away from the substrate 2 includes a second recessed portion 711 recessed toward the substrate 2 , and the refractive index of the third optical structure layer 7 is less than the refractive index of the first optical structure layer 5 .

[0146] The first optical structure layer 5 also includes a fourth optical structure portion 52 on the same layer as the first optical structure portion 51, the orthographic projection of the fourth optical structure portion 52 on the substrate 2 at least partially overlaps with the orthographic projection of the third optical structure portion 71 on the substrate 2, and the side of the fourth optical structure portion 52 away from the substrate 2 includes a third groove 523 recessed in the direction of the substrate 2.

[0147] The second optical structure layer 6 further includes a fifth optical structure part 62 in the same layer as the second optical structure part 61 , and the orthographic projection of the fifth optical structure part 62 on the substrate 2 at least partially overlaps with the orthographic projection of the fourth optical structure part 52 on the substrate 2 .

[0148] The side of the third optical structure portion 71 away from the substrate 2 includes a concave surface that is recessed toward the direction close to the substrate 2, and the orthographic projection of the concave surface on the substrate 2 at least partially overlaps with the orthographic projection of the light-emitting unit 17 on the substrate 2; the side of the fourth optical structure portion 52 close to the substrate 2 includes a convex surface that protrudes toward the direction close to the substrate 2, and the orthographic projection of the convex surface on the substrate 2 at least partially overlaps with the orthographic projection of the light-emitting unit 17 on the substrate 2, and the convex surface of the fourth optical structure portion 52 is in contact with the concave surface of the third optical structure portion 71.

[0149] The side of the fourth optical structure portion 52 away from the substrate 2 includes a concave surface that is recessed toward the direction approaching the substrate 2, and the orthographic projection of the concave surface on the substrate 2 at least partially overlaps with the orthographic projection of the light-emitting unit 17 on the substrate 2; the side of the fifth optical structure portion 62 close to the substrate 2 includes a convex surface that protrudes toward the direction approaching the substrate 2, and the orthographic projection of the convex surface on the substrate 2 at least partially overlaps with the orthographic projection of the light-emitting unit 17 on the substrate 2, and the convex surface of the fifth optical structure portion 62 is in contact with the concave surface of the fourth optical structure portion 52.

[0150] The refractive index of the third optical structure layer 7 is smaller than that of the first optical structure layer 5, the refractive index of the second optical structure layer 6 is smaller than that of the first optical structure layer 5, and the third optical structure portion 71 and the fourth optical structure portion 52 are both recessed away from the side close to the substrate 2. In this way, when the light emitted by the light-emitting unit 17 reaches the contact surface between the third optical structure portion 71 and the fourth optical structure portion 52, the light of the light-emitting unit 17 will be converged, and when it reaches the contact surface passing through the fourth optical structure portion 52 and the fifth optical structure portion 62, the light will be diverged. On the whole, the light of a large viewing angle that passes through the third optical structure portion 71, the fourth optical structure portion 52 and the fifth optical structure portion 62 in sequence will be converged to a positive viewing angle.

[0151] In this way, while improving the transmittance of the light-transmitting opening 4 of the display panel, the emission rate of the light-emitting unit 17 can be improved, thereby improving the display performance of the display panel.

[0152] Preferably, the arc angle of the second recessed portion 711 in the direction of the substrate 2 is at least partially equal to the arc angle of the third groove 523 in the direction of the substrate 2. In this way, the light of the light-emitting unit 17 with a large viewing angle can be easily converged to the normal viewing angle, thereby further improving the light extraction rate of the light-emitting unit 17.

[0153] For some possible implementations, see again Figure 8The first optical structure part 51 includes a second main body sub-part 511 and a second protruding sub-part 512 stacked in a direction away from the substrate 2, and a cross-sectional contour line of the second protruding sub-part 512 is connected to a cross-sectional contour line of the third groove 523 in a direction perpendicular to the substrate 2. In this way, the transmittance at the light-transmitting opening 4 can be further improved, and the light extraction rate of the light-emitting unit 17 can be further improved.

[0154] In this embodiment, the refractive index of the first optical structure layer 5 is greater than or equal to 1.6 and less than or equal to 1.9. For example, the refractive index of the first optical structure layer 5 may be 1.6, 1.7, 1.8 or 1.9.

[0155] Optionally, the refractive index of the second optical structure layer 6 is greater than or equal to 1.3 and less than or equal to 1.6. For example, the refractive index of the second optical structure layer 6 may be 1.3, 1.4, 1.5 or 1.6.

[0156] Optionally, the refractive index of the third optical structure layer 7 is greater than or equal to 1.3 and less than or equal to 1.6. For example, the refractive index of the third optical structure layer 7 may be 1.3, 1.4, 1.5 or 1.6.

[0157] For some possible implementations, see again Figure 6 or Figure 8 , the first optical structure part 51 and the fourth optical structure part 52 are integrally formed.

[0158] Optionally, the second optical structure portion 61 and the fifth optical structure portion 62 are formed integrally.

[0159] Optionally, the orthographic projection of the third optical structure part 71 on the substrate 2 covers the orthographic projection of the light emitting unit 17 on the substrate 2 .

[0160] Optionally, the orthographic projection of the fourth optical structure part 52 on the substrate 2 covers the orthographic projection of the light emitting unit 17 on the substrate 2 .

[0161] Optionally, the orthographic projection of the fifth optical structure part 62 on the substrate 2 covers the orthographic projection of the light emitting unit 17 on the substrate 2 .

[0162] In this way, the light with a wide viewing angle emitted by the light-emitting unit 17 is more easily converged to a positive viewing angle after passing through the third optical structure part, the fourth optical structure part and the fifth optical structure part in sequence, thereby further improving the light extraction efficiency of the light-emitting unit 17.

[0163] Preferably, see again Figure 6 or Figure 8 , the orthographic projection of the third optical structure part 71 on the substrate 2 is located outside the orthographic projection of the light-transmitting opening 4 on the substrate 2 .

[0164] Optionally, the orthographic projection of the fourth optical structure part 52 on the substrate 2 is located outside the orthographic projection of the light-transmitting opening 4 on the substrate 2 .

[0165] Optionally, the orthographic projection of the fifth optical structure part 62 on the substrate 2 is located outside the orthographic projection of the light-transmitting opening 4 on the substrate 2 .

[0166] Optionally, the fourth optical structure part 52 covers a side of the third optical structure part 71 away from the substrate 2 .

[0167] Optionally, the fifth optical structure part 62 covers a side of the fourth optical structure part 52 away from the substrate 2 .

[0168] Optionally, the first optical structure part 51 , the second optical structure part 61 , the third optical structure part 71 , the fourth optical structure part 52 and / or the fifth optical structure part 62 are in the shape of lenses.

[0169] In this way, the third optical structure part 71 , the fourth optical structure part 52 and the fifth optical structure part 62 do not affect the external light reaching the light transmission opening 4 , so that the transmittance of the light transmission opening 4 can be made higher.

[0170] For some possible implementations, see again Figure 6 or Figure 8 , the orthographic projection of the first optical structure part 51 on the substrate 2 covers the orthographic projection of the light-transmitting opening 4 on the substrate 2 .

[0171] Optionally, the orthographic projection of the second optical structure part 61 on the substrate 2 covers the orthographic projection of the light-transmitting opening 4 on the substrate 2 .

[0172] Optionally, the orthographic projection of the first optical structure part 51 on the substrate 2 is located outside the orthographic projection of the isolation opening 301 on the substrate 2 .

[0173] Optionally, the orthographic projection of the second optical structure portion 61 on the substrate 2 is located outside the orthographic projection of the isolation opening 301 on the substrate 2 .

[0174] Optionally, a side of the second optical structure layer 6 away from the substrate 2 includes a plane.

[0175] In this way, the first optical structure part 51 and the second optical structure part 61 do not affect the light extraction efficiency of the light emitting unit 17 , and thus the transmittance of the light-transmitting opening 4 and the light emission efficiency of the light emitting unit 17 can be further improved.

[0176] For some possible implementations, see again Figure 6 or Figure 8The display panel further includes a first encapsulation layer 12 located on a side of the light emitting unit 17 away from the substrate 2, the first encapsulation layer 12 includes a plurality of encapsulation units 121 arranged at intervals, and at least part of the encapsulation units 121 extend from the side of the isolation structure 3 toward the isolation opening 301 to the side of the isolation structure 3 away from the substrate 2;

[0177] Optionally, the packaging units 121 are spaced apart on a side of the isolation structure 3 away from the substrate 2 .

[0178] Optionally, a gap exists between the packaging unit 121 located on the side of the isolation structure 3 away from the substrate 2 and the side of the isolation structure 3 away from the substrate 2 .

[0179] During the patterning process of the light-emitting unit 17 , the first encapsulation layer 12 is disconnected at the isolation structure 3 to form an encapsulation unit 121 . The encapsulation unit 121 can completely and independently encapsulate the corresponding light-emitting unit 17 , thereby improving the display characteristics of the display panel.

[0180] For some possible implementations, see Fig. 9 and Fig.10 The display panel further includes a second encapsulation layer 13 located on a side of the first encapsulation layer 12 away from the substrate 2 and a third encapsulation layer 14 located between the second encapsulation layer 13 and the first optical structure layer 5 .

[0181] Optionally, the third optical structure layer 7 is located on a side of the third encapsulation unit 121 away from the substrate 2;

[0182] Optionally, the materials of the first encapsulation layer 12 and the third encapsulation layer 14 both include inorganic materials;

[0183] Optionally, the material of the second encapsulation layer 13 includes an organic material.

[0184] For example, the first encapsulation layer 12 and the third encapsulation layer 14 can be formed by chemical vapor deposition (CVD), and the second encapsulation layer 13 can be formed by inkjet printing (IJP). The second encapsulation layer 13 and the third encapsulation layer 14 can provide a better encapsulation effect on the light-emitting unit 17, thereby further improving the encapsulation quality of the display panel.

[0185] Preferably, see again Fig. 9 The isolation structure 3 includes a first isolation portion 31 and a second isolation portion 32 which are stacked in sequence in a direction away from the substrate 2 , and the orthographic projection of the side of the first isolation portion 31 away from the substrate 2 on the substrate 2 is located within the orthographic projection of the second isolation portion 32 on the substrate 2 .

[0186] Since the second isolation portion 32 is located on the side of the first isolation portion 31 away from the substrate 2, and the lateral width of the second isolation portion 32 is greater than the lateral width of the first isolation portion 31 in a plane parallel to the substrate 2, the second isolation portion 32 disconnects the light-emitting functional layer and the second electrode layer at the isolation structure 3. In this way, the isolation structure 3 formed by the first isolation portion 31 and the second isolation portion 32 can make it easier to independently package each light-emitting unit 17, thereby improving the packaging yield of the display panel.

[0187] Preferably, see again Fig. 9 , the first electrode 9 is electrically connected to the first isolation portion 31; the first isolation portion 31 includes a conductive material, and the second electrode 11 corresponding to the light-emitting unit 17 extends to contact the side wall of the first isolation portion 31 to achieve electrical connection between the second electrode 11 corresponding to the light-emitting unit 17 and the first isolation portion 31.

[0188] Please see again Fig.10 The isolation structure 3 further includes a third isolation portion 33 located on a side of the first isolation portion 31 facing the substrate 2 , and the first electrode 9 is electrically connected to the third isolation portion 33 .

[0189] The third isolation portion 33 includes a conductive material, and the second electrode 11 corresponding to the light emitting unit 17 extends to contact the side wall of the third isolation portion 33 to achieve electrical connection between the second electrode 11 corresponding to the light emitting unit 17 and the third isolation portion 33 .

[0190] Specifically, the material of the third isolation portion 33 includes molybdenum metal; and / or, the material of the first isolation portion 31 includes aluminum metal; and / or, the material of the second isolation portion 32 includes titanium metal. In this way, when the isolation structure 3 separates the second electrode layer into the second electrode 11, the second electrode 11 is more easily electrically connected to the first isolation portion 31 and / or the third isolation portion 33.

[0191] The orthographic projection of the light emitting portion 10 on the substrate 2 is outside the orthographic projection of the third isolation portion 33 and / or the first isolation portion 31 on the substrate 2. In this way, the light emitting portion 10 does not overlap the isolation structure 3, thereby effectively improving the crosstalk problem between the light emitting units 17.

[0192] For some possible implementations, see Figure 6 or Figure 8 The present application also provides a display panel, which includes a first display area AA1 and a second display area AA2 surrounding at least part of the first display area AA1, and the display panel includes a substrate 2, an isolation structure 3, a first optical structure layer 5 and a second optical structure layer 6.

[0193] The isolation structure 3 is located on one side of the substrate 2 and is disposed in the first display area AA1 and the second display area AA2. The isolation structure 3 includes a plurality of light-transmitting openings 4, and the plurality of light-transmitting openings 4 are disposed in the first display area AA1.

[0194] The first optical structure layer 5 is located on a side of the isolation structure 3 away from the substrate 2 . The first optical structure layer 5 includes a first optical structure portion 51 . The orthographic projection of the first optical structure portion 51 on the substrate 2 at least partially overlaps with the orthographic projection of the light-transmitting opening 4 on the substrate 2 .

[0195] The second optical structure layer 6 is located on a side of the first optical structure layer 5 away from the substrate 2 . The second optical structure layer 6 includes a second optical structure portion 61 . The orthographic projection of the second optical structure portion 61 on the substrate 2 at least partially overlaps with the orthographic projection of the first optical structure portion 51 on the substrate 2 .

[0196] The first optical structure part 51 and the second optical structure part 61 cooperate to form a first convex lens, and the orthographic projection of the first convex lens on the substrate 2 at least partially overlaps with the orthographic projection of the light-transmitting opening 4 on the substrate 2 .

[0197] The first convex lens has the function of converging light, so when the external light reaches the contact surface of the first optical structure part 51 and the second optical structure part 61, it is easier to make more external light converge in the light-transmitting opening 4. Since more light can be converged in the light-transmitting opening 4, the transmittance of the display panel at the light-transmitting opening 4 can be improved, and then the light-sensing effect of the under-screen photosensitive device 1 of the display panel can be improved.

[0198] For some possible implementations, see Figure 6 or Figure 8 The display panel further includes a light emitting unit 17 at least partially located in the isolation opening 301 and a third optical structure layer 7 located between the light emitting unit 17 and the first optical structure layer 5 . The third optical structure layer 7 includes a third optical structure portion 71 .

[0199] The first optical structure layer 5 also includes a fourth optical structure part 52 on the same layer as the first optical structure part 51 . The fourth optical structure part 52 and the third optical structure part 71 cooperate to form a second convex lens. The orthographic projection of the second convex lens on the substrate 2 at least partially overlaps with the orthographic projection of the light-emitting unit 17 on the substrate 2 .

[0200] The second optical structure layer 6 also includes a fifth optical structure part 62 on the same layer as the second optical structure part 61 . The fifth optical structure part 62 and the fourth optical structure part 52 cooperate to form a concave lens, and the orthographic projection of the concave lens on the substrate 2 at least partially overlaps with the orthographic projection of the second convex lens on the substrate 2 .

[0201] The second convex lens has the function of converging light, and the concave lens has the function of diverging light. Therefore, when the light emitted by the light-emitting unit 17 reaches the contact surface between the third optical structure part 71 and the fourth optical structure part 52, the light of the light-emitting unit 17 will be converged, and when it reaches the contact surface passing through the fourth optical structure part 52 and the fifth optical structure part 62, the light will be diverged. As a whole, the light with a large viewing angle that passes through the third optical structure part 71, the fourth optical structure part 52 and the fifth optical structure part 62 in sequence will be converged to the positive viewing angle. In this way, while improving the transmittance of the light-transmitting opening 4 of the display panel, the emission rate of the light-emitting unit 17 can be improved, thereby improving the display performance of the display panel.

[0202] For some possible implementations, see Figure 2 and Fig.11 The present application also provides a method for preparing a display panel, the display panel comprising a first display area AA1 and a second display area AA2 surrounding at least a portion of the first display area AA1, the method comprising:

[0203] S10: providing a substrate 2.

[0204] S11: forming an isolation structure 3 on one side of the substrate 2, the isolation structure 3 is disposed in the first display area AA1 and the second display area AA2, the isolation structure 3 includes a plurality of light-transmitting openings 4, and the plurality of light-transmitting openings 4 are disposed in the first display area AA1.

[0205] See also Fig.12 A first electrode layer is formed on one side of the substrate 2 and a pixel defining material layer 15 is formed on a side of the first electrode layer away from the substrate 2 . The first electrode layer includes a plurality of first electrodes 9 arranged at intervals.

[0206] See also Fig.13 , an isolation material layer 16 is formed on a side of the pixel defining material layer 15 away from the substrate 2 .

[0207] See also Fig.14 , the isolation material layer 16 and the pixel defining material layer 15 are etched in sequence to form an isolation structure 3 and a pixel defining layer 8 respectively, the pixel defining layer 8 includes a pixel opening 81 exposing at least a portion of the first electrode 9, and the orthographic projection of the pixel opening 81 on the substrate 2 is located within the orthographic projection of the isolation opening 301 on the substrate 2.

[0208] S12 : forming a first optical structure layer 5 on a side of the isolation structure 3 away from the substrate 2 , wherein the first optical structure portion 51 is configured to refract at least part of the incident light passing through the second optical structure layer 6 and converge it into the light-transmitting opening 4 .

[0209] The first optical structure layer 5 includes a first optical structure portion 51 , and the orthographic projection of the first optical structure portion 51 on the substrate 2 at least partially overlaps with the orthographic projection of the light-transmitting opening 4 on the substrate 2 .

[0210] See also Fig.15 , a light emitting unit 17 and a packaging unit 121 located on a side of the light emitting unit 17 away from the substrate 2 are formed in the isolation opening 301 .

[0211] See also Fig.16 A second encapsulation layer 13 and a third encapsulation layer 14 are sequentially formed on a side of the encapsulation unit 121 away from the substrate 2 .

[0212] See also Fig.17 A third optical structure layer 7 is formed on a side of the third encapsulation layer 14 away from the substrate 2 , and the third optical structure layer 7 includes a third optical structure portion 71 , and the orthographic projection of the third optical structure portion 71 on the substrate 2 at least partially overlaps with the orthographic projection of the light-emitting unit 17 on the substrate 2 .

[0213] See also Fig.18 , a first optical structure layer 5 is formed on a side of the third optical structure part 71 and the third encapsulation layer 14 away from the substrate 2 .

[0214] S13: A second optical structure layer 6 is formed on a side of the first optical structure layer 5 away from the substrate 2, the second optical structure layer 6 includes a second optical structure portion 61, the orthographic projection of the second optical structure portion 61 on the substrate 2 at least partially overlaps with the orthographic projection of the first optical structure portion 51 on the substrate 2, and at least part of the light reaching the first optical structure portion 51 through the second optical structure portion 61 is refracted on the contact surface between the second optical structure portion 61 and the first optical structure portion 51 and converges in the light-transmitting opening 4.

[0215] Please see again Figure 6 A second optical structure layer 6 is formed on a side of the first optical structure layer 5 away from the substrate 2 .

[0216] In the display panel formed by the above method, when external light enters from the second optical structure part 61 and reaches the interface between the second optical structure part 61 and the first optical structure part 51, the light will be refracted. The refracted light can be converged at the light-transmitting opening 4 and projected from the light-transmitting opening 4 to the photosensitive device 1, thereby improving the transmittance of the light-transmitting opening 4. Finally, the photosensitive device 1 can receive more external light, thereby improving the photosensitivity of the photosensitive device 1 of the display panel.

[0217] When the light emitted by the light emitting unit 17 reaches the contact surface between the third optical structure part 71 and the fourth optical structure part 52, the light of the light emitting unit 17 will be converged, and when it reaches the contact surface passing through the fourth optical structure part 52 and the fifth optical structure part 62, the light will be diverged. As a whole, the light of a large viewing angle that passes through the third optical structure part 71, the fourth optical structure part 52 and the fifth optical structure part 62 in sequence will be converged to a positive viewing angle.

[0218] In this way, while improving the transmittance of the light-transmitting opening 4 of the display panel, the emission rate of the light-emitting unit 17 can be improved, thereby improving the display performance of the display panel.

[0219] In some possible implementations, the present application further provides an electronic device, the electronic device comprising the display panel of the present application, or comprising a display panel prepared by the method for preparing a display panel of the present application. The electronic device may include a device with image processing capabilities, such as a server, a personal computer, a laptop computer, etc. Since the electronic device comprises the display panel of the present application, the transmittance of the light-transmitting opening of the electronic device is higher and the emission rate of the light-emitting unit is higher.

[0220] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above 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.

[0221] The above-mentioned embodiments only express several implementation methods of the present invention, 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 ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: The display panel comprises a first display area and a second display area surrounding at least a portion of the first display area, and the display panel comprises: substrate; An isolation structure, located at one side of the substrate, and arranged in the first display area and the second display area, wherein the isolation structure comprises a plurality of light-transmitting openings, and the plurality of light-transmitting openings are arranged in the first display area; A first optical structure layer is located on a side of the isolation structure away from the substrate, the first optical structure layer comprises a first optical structure portion, an orthographic projection of the first optical structure portion on the substrate at least partially overlaps with an orthographic projection of the light-transmitting opening on the substrate; A second optical structure layer is located on a side of the first optical structure layer away from the substrate; The first optical structure portion is configured to refract at least a portion of incident light passing through the second optical structure layer and converge the light into the light-transmitting opening.

2. The display panel according to claim 1, characterized in that: The second optical structure layer comprises a second optical structure part, and the orthographic projection of the second optical structure part on the substrate at least partially overlaps with the orthographic projection of the first optical structure part on the substrate; Preferably, the first optical structure layer and the second optical structure layer have different refractive indices; Preferably, the first optical structure part is configured to refract at least part of the incident light passing through the second optical structure part and converge it into the light-transmitting opening; Preferably, the side of the first optical structure portion away from the substrate comprises a first recessed portion recessed toward the substrate, at least part of the second optical structure portion is located in the first recessed portion, and the refractive index of the second optical structure layer is greater than the refractive index of the first optical structure layer; Preferably, the isolation structure further includes a plurality of isolation openings, and the plurality of isolation openings are respectively arranged in the first display area and the second display area.

3. The display panel according to claim 1, characterized in that: The display panel further includes a light emitting unit at least partially located in the isolation opening and a third optical structure layer located between the light emitting unit and the first optical structure layer, the third optical structure layer includes a third optical structure portion, an orthographic projection of the third optical structure portion on the substrate at least partially overlaps with an orthographic projection of the light emitting unit on the substrate, the third optical structure portion protrudes toward a side away from the substrate, and a refractive index of the third optical structure layer is greater than a refractive index of the first optical structure layer; Preferably, the first optical structure layer further includes a fourth optical structure portion on the same layer as the first optical structure portion, the orthographic projection of the fourth optical structure portion on the substrate at least partially overlaps with the orthographic projection of the third optical structure portion on the substrate, and the fourth optical structure portion protrudes toward a side away from the substrate; Preferably, the second optical structure layer further includes a fifth optical structure part, and the orthographic projection of the fifth optical structure part on the substrate at least partially overlaps with the orthographic projection of the fourth optical structure part on the substrate; Preferably, the arc of the third optical structure portion protruding in the direction away from the substrate is at least partially equal to the arc of the fourth optical structure portion protruding in the direction away from the substrate; Preferably, the plurality of isolation openings and the plurality of light-transmitting openings located in the first display area are arranged at intervals.

4. The display panel according to claim 3, characterized in that: The fourth optical structure portion comprises a first main body sub-portion and a first protruding sub-portion stacked in a direction away from the substrate, the first optical structure portion comprises a first recessed portion recessed in the direction of the substrate on one side away from the substrate, and a cross-sectional contour line of the first protruding sub-portion is connected to a cross-sectional contour line of the first recessed portion in a direction perpendicular to the substrate; Preferably, the refractive index of the first optical structure layer is greater than or equal to 1.3 and less than or equal to 1.6; Preferably, the refractive index of the second optical structure layer is greater than or equal to 1.6 and less than or equal to 1.9; Preferably, the refractive index of the third optical structure layer is greater than or equal to 1.6 and less than or equal to 1.

9.

5. The display panel according to claim 1, characterized in that: The first optical structure portion protrudes toward a side away from the substrate, and the refractive index of the second optical structure layer is smaller than the refractive index of the first optical structure layer; Preferably, the isolation structure further includes a plurality of isolation openings, and the plurality of isolation openings are respectively arranged in the first display area and the second display area.

6. The display panel according to claim 1, characterized in that: The display panel further includes a light emitting unit at least partially located in the isolation opening and a third optical structure layer located between the light emitting unit and the first optical structure layer, the third optical structure layer includes a third optical structure portion, an orthographic projection of the third optical structure portion on the substrate at least partially overlaps with an orthographic projection of the light emitting unit on the substrate, a side of the third optical structure portion away from the substrate includes a second recessed portion recessed toward the substrate, and a refractive index of the third optical structure layer is less than a refractive index of the first optical structure layer; Preferably, the first optical structure layer further includes a fourth optical structure portion on the same layer as the first optical structure portion, an orthographic projection of the fourth optical structure portion on the substrate at least partially overlaps with an orthographic projection of the third optical structure portion on the substrate, and a side of the fourth optical structure portion away from the substrate includes a third groove sunken toward the substrate; Preferably, the second optical structure layer further includes a fifth optical structure part, and the orthographic projection of the fifth optical structure part on the substrate at least partially overlaps with the orthographic projection of the fourth optical structure part on the substrate; Preferably, the arc angle of the second recessed portion in the direction of the substrate is at least partially equal to the arc angle of the third groove in the direction of the substrate; Preferably, the plurality of isolation openings and the plurality of light-transmitting openings located in the first display area are arranged at intervals.

7. The display panel according to claim 6, characterized in that: The first optical structure portion comprises a second body sub-portion and a second protruding sub-portion stacked in a direction away from the substrate, and a cross-sectional contour line of the second protruding sub-portion is connected to a cross-sectional contour line of the third groove in a direction perpendicular to the substrate; Preferably, the refractive index of the first optical structure layer is greater than or equal to 1.6 and less than or equal to 1.9; Preferably, the refractive index of the second optical structure layer is greater than or equal to 1.3 and less than or equal to 1.6; Preferably, the refractive index of the third optical structure layer is greater than or equal to 1.3 and less than or equal to 1.

6.

8. The display panel according to claim 3 or 6, characterized in that: The first optical structure part and the fourth optical structure part are formed integrally; Preferably, the second optical structure layer includes a second optical structure part, and the second optical structure part and the fifth optical structure part are arranged in the same layer; Preferably, the second optical structure portion and the fifth optical structure portion are integrally formed; Preferably, the orthographic projection of the third optical structure portion on the substrate covers the orthographic projection of the light-emitting unit on the substrate; Preferably, the orthographic projection of the fourth optical structure portion on the substrate covers the orthographic projection of the light emitting unit on the substrate; Preferably, the orthographic projection of the fifth optical structure portion on the substrate covers the orthographic projection of the light-emitting unit on the substrate; Preferably, the orthographic projection of the third optical structure portion on the substrate is located outside the orthographic projection of the light-transmitting opening on the substrate; Preferably, the orthographic projection of the fourth optical structure portion on the substrate is located outside the orthographic projection of the light-transmitting opening on the substrate; Preferably, the orthographic projection of the fifth optical structure portion on the substrate is outside the orthographic projection of the light-transmitting opening on the substrate; Preferably, the fourth optical structure portion covers a side of the third optical structure portion away from the substrate; Preferably, the fifth optical structure portion covers a side of the fourth optical structure portion away from the substrate; Preferably, the first optical structure portion, the second optical structure portion, the third optical structure portion, the fourth optical structure portion and / or the fifth optical structure portion are in the shape of lenses.

9. The display panel according to claim 2, characterized in that: The orthographic projection of the first optical structure portion on the substrate covers the orthographic projection of the light-transmitting opening on the substrate; Preferably, the orthographic projection of the second optical structure portion on the substrate covers the orthographic projection of the light-transmitting opening on the substrate; Preferably, the orthographic projection of the first optical structure portion on the substrate is located outside the orthographic projection of the isolation opening on the substrate; Preferably, the orthographic projection of the second optical structure portion on the substrate is located outside the orthographic projection of the isolation opening on the substrate; Preferably, the side of the second optical structure layer away from the substrate comprises a plane; Preferably, the substrate comprises a light-transmitting area, and an orthographic projection of the light-transmitting area on the substrate at least partially overlaps with an orthographic projection of the light-transmitting opening on the substrate.

10. The display panel according to claim 3 or 6, characterized in that: The display panel further comprises a first encapsulation layer located on a side of the light-emitting unit away from the substrate, the first encapsulation layer comprising a plurality of encapsulation units arranged at intervals, at least some of the encapsulation units extending from a side of the isolation structure toward the isolation opening to a side of the isolation structure away from the substrate; Preferably, the packaging unit is spaced apart on a side of the isolation structure away from the substrate; Preferably, a gap exists between the packaging unit located at a side of the isolation structure away from the substrate and a side of the isolation structure away from the substrate.

11. The display panel according to claim 10, characterized in that: The display panel further comprises a second encapsulation layer located at a side of the first encapsulation layer away from the substrate and a third encapsulation layer located between the second encapsulation layer and the first optical structure layer; Preferably, the third optical structure layer is located on a side of the third packaging unit away from the substrate; Preferably, the materials of the first encapsulation layer and the third encapsulation layer both include inorganic materials; Preferably, the material of the second encapsulation layer includes an organic material; Preferably, the isolation structure comprises a first isolation portion and a second isolation portion which are sequentially stacked in a direction away from the substrate, and an orthographic projection of a side of the first isolation portion away from the substrate on the substrate is located within an orthographic projection of the second isolation portion on the substrate; Preferably, the light-emitting unit comprises a first electrode, a light-emitting portion, and a second electrode sequentially stacked in a direction away from the substrate, and the first electrode is electrically connected to the first isolation portion; and / or, the isolation structure further comprises a third isolation portion located on a side of the first isolation portion facing the substrate, and the first electrode is electrically connected to the third isolation portion; Preferably, the material of the third isolation portion includes molybdenum metal; and / or the material of the first isolation portion includes aluminum metal; and / or the material of the second isolation portion includes titanium metal.

12. A display panel, characterized in that: The display panel comprises a first display area and a second display area surrounding at least a portion of the first display area, and the display panel comprises: substrate; An isolation structure, located at one side of the substrate, and arranged in the first display area and the second display area, wherein the isolation structure comprises a plurality of light-transmitting openings, and the plurality of light-transmitting openings are arranged in the first display area; A first optical structure layer is located on a side of the isolation structure away from the substrate, the first optical structure layer comprises a first optical structure portion, an orthographic projection of the first optical structure portion on the substrate at least partially overlaps with an orthographic projection of the light-transmitting opening on the substrate; a second optical structure layer, located on a side of the first optical structure layer away from the substrate, the second optical structure layer comprising a second optical structure portion, an orthographic projection of the second optical structure portion on the substrate at least partially overlapping with an orthographic projection of the first optical structure portion on the substrate; The first optical structure part and the second optical structure part cooperate to form a light-transmitting structure including a first convex lens, and the orthographic projection of the first convex lens on the substrate at least partially overlaps with the orthographic projection of the light-transmitting opening on the substrate.

13. The display panel according to claim 12, characterized in that: The display panel further includes a light emitting unit at least partially located in the isolation opening and a third optical structure layer located between the light emitting unit and the first optical structure layer, wherein the third optical structure layer includes a third optical structure portion; The first optical structure layer further includes a fourth optical structure part in the same layer as the first optical structure part, the fourth optical structure part and the third optical structure part cooperate to form a second convex lens, and the orthographic projection of the second convex lens on the substrate at least partially overlaps with the orthographic projection of the light-emitting unit on the substrate; The second optical structure layer also includes a fifth optical structure part on the same layer as the second optical structure part, the fifth optical structure part and the fourth optical structure part cooperate to form a concave lens, and the orthographic projection of the concave lens on the substrate at least partially overlaps with the orthographic projection of the second convex lens on the substrate.

14. A method for preparing a display panel, characterized in that: The display panel includes a first display area and a second display area surrounding at least a portion of the first display area, and the method includes: providing a substrate; An isolation structure is formed on one side of the substrate, the isolation structure is arranged in the first display area and the second display area, the isolation structure includes a plurality of light-transmitting openings, and the plurality of light-transmitting openings are arranged in the first display area; forming a first optical structure layer on a side of the isolation structure away from the substrate, the first optical structure layer comprising a first optical structure portion, an orthographic projection of the first optical structure portion on the substrate at least partially overlapping with an orthographic projection of the light-transmitting opening on the substrate; A second optical structure layer is formed on a side of the first optical structure layer away from the substrate, and the first optical structure portion is configured to refract at least a portion of incident light passing through the second optical structure layer and converge it into the light-transmitting opening.

15. An electronic device, characterized in that: The electronic device comprises the display panel according to any one of claims 1 to 13, or comprises a display panel prepared by the method for preparing a display panel according to claim 14.

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