Display panel, display device and manufacturing method of display panel

Abstract

The embodiment of the invention provides a display panel, a display device and a manufacturing method of the display panel. The display panel comprises a substrate; the isolation structure is arranged on one side of the substrate, and a plurality of isolation openings are defined by the isolation structure; the reflecting layer is arranged on one side, deviating from the substrate, of the isolation structure; the diffuse reflection layer is arranged on the side, away from the substrate, of the reflection layer. External light rays are emitted to the diffuse reflection layer, part of the light rays penetrate through the diffuse reflection layer and then are reflected back to the diffuse reflection layer through the reflection layer, the reflectivity of the diffuse reflection layer is improved, and therefore the diffuse reflection effect of the display panel is improved, the fusion degree of the display panel, surrounding materials and the background is improved, and the use performance of the display panel is improved.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a display panel, a display device, and a method for manufacturing a display panel. 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 devices.

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

[0004] The embodiments of the present application provide a display panel, a display device and a method for manufacturing a display panel, aiming to improve the process performance of the display panel.

[0005] An embodiment of the first aspect of the present application provides a display panel, including: a substrate; an isolation structure, arranged on one side of the substrate, the isolation structure encloses a plurality of isolation openings; a reflective layer, arranged on a side of the isolation structure away from the substrate; and a diffuse reflection layer, arranged on a side of the reflective layer away from the substrate.

[0006] According to an embodiment of the present application, an orthographic projection of the diffuse reflection layer on the substrate and an orthographic projection of the reflection layer on the substrate at least partially overlap.

[0007] According to an embodiment of the present application, an orthographic projection of the reflective layer on the substrate at least partially overlaps with an orthographic projection of the isolation structure on the substrate.

[0008] According to an embodiment of the present application, the orthographic projection of the diffuse reflection layer on the substrate is located within the orthographic projection of the reflection layer on the substrate.

[0009] According to an embodiment of the present application, a distance between a boundary of an orthographic projection of the diffuse reflection layer on the substrate and a boundary of an orthographic projection of the reflection layer on the substrate is greater than or equal to 0.5 micrometers and less than or equal to 2 micrometers.

[0010] According to an embodiment of the present application, the reflective layer encloses a light-transmitting opening, and an orthographic projection of the light-transmitting opening on the substrate overlaps with an orthographic projection of the isolation opening on the substrate.

[0011] According to an embodiment of the present application, the reflective layer is located on a side of the isolation structure facing away from the substrate, and the reflective layer is disposed in contact with the isolation structure.

[0012] According to an embodiment of the present application, an orthographic projection of the reflective layer on the substrate is located within an orthographic projection of the diffuse reflective layer on the substrate.

[0013] According to an embodiment of the present application, the display panel further includes a pixel defining layer, the pixel defining layer includes a pixel defining portion and a plurality of pixel openings formed by enclosing the pixel defining portion, and the pixel openings are located within the isolation openings.

[0014] According to an embodiment of the present application, the pixel defining portion includes a side wall facing a side of the pixel opening, and an orthographic projection of the diffuse reflection layer on the substrate and an orthographic projection of the side wall on the substrate are staggered.

[0015] According to an embodiment of the present application, the pixel defining portion includes a side wall facing a side of the pixel opening, and an orthographic projection of the diffuse reflection layer on the substrate at least partially overlaps with an orthographic projection of the side wall on the substrate.

[0016] According to an embodiment of the present application, the pixel defining layer is arranged on one side of the substrate, a first electrode is arranged between a first surface of the pixel defining layer facing the side of the substrate and the substrate, the first electrode is exposed to a first area enclosed by the first surface, the diffuse reflection layer encloses a diffuse reflection layer opening, and the edge of the orthographic projection of the diffuse reflection layer opening on the substrate overlaps with the edge of the orthographic projection of the first area on the substrate.

[0017] According to an embodiment of the present application, the orthographic projection of the reflective layer on the substrate and the orthographic projection of the side wall on the substrate are staggered; or, the orthographic projection of the reflective layer on the substrate and the orthographic projection of the side wall on the substrate at least partially overlap.

[0018] According to an embodiment of the present application, the reflectivity of the reflective layer is greater than or equal to 85%.

[0019] According to an embodiment of the present application, the material of the reflective layer includes metal.

[0020] According to an embodiment of the present application, the material of the reflective layer includes aluminum, silver or gold.

[0021] According to an embodiment of the present application, the display panel further includes an encapsulation layer, which is disposed on a side of the isolation structure away from the substrate, and the reflective layer and the diffuse reflection layer are disposed on a side of the encapsulation layer away from the substrate.

[0022] According to an embodiment of the present application, the encapsulation layer includes a first encapsulation layer, and the first encapsulation layer includes an encapsulation portion partially located in the isolation opening.

[0023] According to an embodiment of the present application, the packaging portion includes a first portion and a second portion, the first portion is located at the isolation opening, and the second portion is connected to a peripheral side of the first portion and extends to a side of the isolation structure away from the substrate.

[0024] According to an embodiment of the present application, the material of the first encapsulation layer includes an inorganic material.

[0025] According to an embodiment of the present application, the reflective layer is arranged on a side of the isolation structure away from the substrate and is located on a side of the second portion facing the substrate, and at least part of the diffuse reflective layer is arranged on a side of the first packaging layer away from the substrate.

[0026] According to an embodiment of the present application, the encapsulation layer further includes a second encapsulation layer and a third encapsulation layer, and the second encapsulation layer is disposed between the first encapsulation layer and the third encapsulation layer.

[0027] According to an embodiment of the present application, the material of the second encapsulation layer includes an organic material, and the material of the third encapsulation layer includes an inorganic material.

[0028] According to an embodiment of the present application, the reflective layer and the diffuse reflective layer are disposed on a side of the third packaging layer facing away from the substrate.

[0029] According to an embodiment of the present application, the display panel further includes a shading portion, which is located on a side of the reflective layer facing the substrate, and an orthographic projection of the shading portion on the substrate at least partially overlaps with an orthographic projection of the reflective layer on the substrate.

[0030] According to an embodiment of the present application, an orthographic projection of the light shielding portion on the substrate at least partially overlaps with an orthographic projection of the diffuse reflection layer on the substrate.

[0031] According to an embodiment of the present application, the light shielding portion is disposed between the encapsulation layer and the reflective layer.

[0032] According to an embodiment of the present application, the display panel further includes a touch electrode, and the touch electrode is arranged on a side of the third encapsulation layer facing away from the substrate.

[0033] According to an embodiment of the present application, the reflective layer is reused as a touch electrode.

[0034] According to an embodiment of the present application, the touch electrode is disposed between the reflective layer and the third packaging layer, and an orthographic projection of the touch electrode on the substrate at least partially overlaps with an orthographic projection of the reflective layer on the substrate.

[0035] According to an embodiment of the present application, the touch electrode is disposed on a side of the reflective layer facing away from the substrate, and an orthographic projection of the touch electrode on the substrate at least partially overlaps with an orthographic projection of the reflective layer on the substrate.

[0036] According to an embodiment of the present application, at least a portion of the orthographic projections of the touch electrodes on the substrate are located within the orthographic projections of the reflective layer on the substrate.

[0037] According to an embodiment of the present application, the touch electrode includes a light-transmitting material.

[0038] According to an embodiment of the present application, the touch electrode is disposed on a side of the diffuse reflection layer facing away from the substrate.

[0039] According to an embodiment of the present application, an anti-reflection layer is further arranged between the reflective layer and the diffuse reflection layer, and the orthographic projection of the anti-reflection layer on the substrate at least partially overlaps with the orthographic projection of the reflective layer on the substrate, and the orthographic projection of the anti-reflection layer on the substrate at least partially overlaps with the orthographic projection of the diffuse reflection layer on the substrate.

[0040] According to an embodiment of the present application, the refractive index of the anti-reflection layer is between the refractive index of the diffuse reflection layer and the refractive index of the reflection layer.

[0041] According to the embodiment of the present application, the refractive index N of the anti-reflection layer is 3 satisfy:

[0042] N 3 =√(N 1 ×N 2 )

[0043] The refractive index of the diffuse reflection layer is N1, and the refractive index of the reflection layer is N2.

[0044] According to an embodiment of the present application, the isolation structure includes a first sublayer and a second sublayer, the first sublayer is located on the side of the second sublayer facing the substrate, and the orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the second sublayer on the substrate.

[0045] According to an embodiment of the present application, the orthographic projection of the reflective layer on the substrate is located within the orthographic projection of the second sub-layer on the substrate.

[0046] According to an embodiment of the present application, the isolation structure further includes a third sublayer, and the third sublayer is arranged on a side of the first sublayer facing the substrate.

[0047] According to an embodiment of the present application, the orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the third sublayer on the substrate;

[0048] According to an embodiment of the present application, the material of the first sub-layer includes aluminum, copper or silver.

[0049] According to an embodiment of the present application, the material of the second sub-layer includes titanium or molybdenum.

[0050] According to an embodiment of the present application, the material of the third sub-layer includes molybdenum or titanium.

[0051] According to an embodiment of the present application, the diffuse reflection layer includes a main material and refractive particles doped in the main material.

[0052] According to an embodiment of the present application, the refractive particles include at least one of titanium oxide or zirconium oxide.

[0053] According to an embodiment of the present application, the host material includes an organic material.

[0054] Preferably, the organic material may include at least one of polyimide, polystyrene or polymethyl methacrylate.

[0055] The first aspect of the present application also provides a display panel, including: a substrate; a reflective layer disposed on one side of the substrate; and a diffuse reflective layer disposed on a side of the reflective layer away from the substrate.

[0056] According to an embodiment of the present application, an orthographic projection of the diffuse reflection layer on the substrate and an orthographic projection of the reflection layer on the substrate at least partially overlap.

[0057] According to an embodiment of the present application, the orthographic projection of the diffuse reflection layer on the substrate is located within the orthographic projection of the reflection layer on the substrate.

[0058] According to an embodiment of the present application, a distance between a boundary of an orthographic projection of the diffuse reflection layer on the substrate and a boundary of an orthographic projection of the reflection layer on the substrate is greater than or equal to 0.5 micrometers and less than or equal to 2 micrometers.

[0059] According to an embodiment of the present application, an orthographic projection of the reflective layer on the substrate is located within an orthographic projection of the diffuse reflective layer on the substrate.

[0060] The third aspect of the present application also provides a display device, characterized in that it includes the display panel in any embodiment of the first aspect.

[0061] A fourth aspect of the present application also provides a method for manufacturing a display panel, including:

[0062] An isolation structure and a reflective layer are formed on one side of the substrate. The isolation structure encloses a plurality of isolation openings. The reflective layer is located on a side of the isolation structure away from the substrate.

[0063] A diffuse reflection layer is formed on the side of the reflection layer facing away from the substrate.

[0064] In an embodiment of the present application, external light is irradiated to the diffuse reflection layer, and part of the light passes through the diffuse reflection layer and is reflected back to the diffuse reflection layer through the reflection layer. The reflectivity of the diffuse reflection layer is increased by the reflection layer, thereby improving the diffuse reflection effect of the display panel, improving the degree of fusion of the display panel with surrounding materials and background, and improving the performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.

[0066] Figure 1 is a structural schematic diagram of a display panel provided in an embodiment of the present application;

[0067] Figure 2 yes Figure 1 Schematic diagram of the AA section structure;

[0068] Figure 3 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0069] Figure 4 is a structural schematic diagram of another display panel provided in an embodiment of the present application;

[0070] Figure 5 is a structural schematic diagram of another display panel provided in an embodiment of the present application;

[0071] Figure 6 is a structural schematic diagram of another display panel provided in an embodiment of the present application;

[0072] Figure 7 is a structural schematic diagram of another display panel provided in an embodiment of the present application;

[0073] Figure 8 is a structural schematic diagram of another display panel provided in an embodiment of the present application;

[0074] Fig. 9 is a structural schematic diagram of another display panel provided in an embodiment of the present application;

[0075] Fig.10 is a structural schematic diagram of another display panel provided in an embodiment of the present application;

[0076] Fig.11 is a structural schematic diagram of another display panel provided in an embodiment of the present application;

[0077] Fig.12 It is a schematic diagram of the structure of a reflective layer, a diffuse reflection layer and an anti-reflection layer provided in an embodiment of the present application;

[0078] Fig.13 A flow chart of a method for manufacturing a display panel provided in an embodiment of the present application;

[0079] Fig.14 A flow chart of another method for manufacturing a display panel provided in an embodiment of the present application;

[0080] Fig.15 A flow chart of another method for manufacturing a display panel provided in an embodiment of the present application.

[0081] Explanation of the figure marks: 100, substrate; 200, isolation structure; 210, first sublayer; 220, second sublayer; 240, third sublayer; 230, isolation opening; 300, reflection layer; 310, light-transmitting opening; 400, diffuse reflection layer; 410, diffuse reflection layer opening; 500, pixel defining layer; 510, pixel defining portion; 511, first surface; 520, pixel opening; 530, side wall; 540, first area; 610, first encapsulation layer; 611, first part; 612, second part; 620, second encapsulation layer; 630, third encapsulation layer; 700, touch electrode; 800, light-emitting unit; 810, light-emitting structure; 820, first electrode; 830, second electrode; 910, light-shielding portion; 920, anti-reflection layer. DETAILED DESCRIPTION

[0082] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0083] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0084] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of the present application. In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0085] like Figure 1 and Figure 2 As shown, a display panel provided by an embodiment of the first aspect of the present application includes: a substrate 100, an isolation structure 200 and a reflective layer 300, wherein the isolation structure 200 is arranged on one side of the substrate 100, and the isolation structure 200 encloses a plurality of isolation openings 230; the reflective layer 300 is arranged on the side of the isolation structure 200 away from the substrate 100, and the diffuse reflection layer 400 is arranged on the side of the reflective layer 300 away from the substrate 100.

[0086] In this embodiment, the isolation structure 200 encloses a plurality of isolation openings 230, and the isolation openings 230 are used to accommodate the light emitting units 800. The isolation structure 200 can reduce the light crosstalk between the light emitting units 800, thereby improving the display effect. The reflective layer 300 is disposed on the side of the isolation structure 200 away from the substrate 100, and the diffuse reflection layer 400 is disposed on the side of the reflective layer 300 away from the substrate 100. When external light is incident on the diffuse reflection layer 400, part of the light passes through the diffuse reflection layer 400 and is reflected back to the diffuse reflection layer 400 by the reflective layer 300. The reflectivity of the diffuse reflection layer 400 is improved by the reflective layer 300, thereby improving the diffuse reflection effect of the display panel, improving the degree of integration of the display panel with the surrounding materials and background, and improving the performance of the display panel.

[0087] The specific design of the isolation structure 200 can refer to existing patents, such as application numbers 202310771124.9, 202310740412.8, 202310855866.X, 202311017132.0, 202311124847.6, and 202311091555.7, which record the relevant contents of the isolation structure 200.

[0088] like Figure 2 As shown, in some optional embodiments, the orthographic projection of the reflective layer 300 on the substrate 100 at least partially overlaps with the orthographic projection of the isolation structure 200 on the substrate 100 .

[0089] In these optional embodiments, the orthographic projection of the reflective layer 300 on the substrate 100 at least partially overlaps with the orthographic projection of the isolation structure 200 on the substrate 100, thereby reducing the influence of the reflective layer 300 on the light output of the light-emitting unit 800 in the isolation opening 230, and reducing the influence of the reflective layer 300 on the display effect of the display panel.

[0090] like Figure 2 As shown, in some optional embodiments, the orthographic projection of the diffuse reflection layer 400 on the substrate 100 and the orthographic projection of the reflection layer 300 on the substrate 100 at least partially overlap.

[0091] In these optional embodiments, external light is irradiated to the diffuse reflection layer 400, and part of the light passes through the diffuse reflection layer 400. The orthographic projection of the diffuse reflection layer 400 on the substrate 100 and the orthographic projection of the reflective layer 300 on the substrate 100 at least partially overlap. Part of the light that passes through the diffuse reflection layer 400 is reflected back to the diffuse reflection layer 400 through the reflective layer 300 and is emitted from the diffuse reflection layer 400, thereby improving the reflectivity of the diffuse reflection layer 400 and thus improving the diffuse reflection effect of the display panel.

[0092] like Figure 2 As shown, in some optional embodiments, the orthographic projection of the diffuse reflection layer 400 on the substrate 100 is located within the orthographic projection of the reflection layer 300 on the substrate 100 .

[0093] In these optional embodiments, the orthographic projection area of ​​the diffuse reflection layer 400 on the substrate 100 is less than or equal to the orthographic projection area of ​​the reflective layer 300 on the substrate 100, and the orthographic projection of the diffuse reflection layer 400 on the substrate 100 is located within the orthographic projection of the reflective layer 300 on the substrate 100, so that more light passing through the diffuse reflection layer 400 can be projected to the reflective layer 300 and reflected back to the diffuse reflection layer 400 through the reflective layer 300, thereby improving the diffuse reflection effect of the display panel.

[0094] Optional, such as Figure 2 As shown, the distance between the boundary of the orthographic projection of the diffuse reflection layer 400 on the substrate 100 and the boundary of the orthographic projection of the reflective layer 300 on the substrate 100 is greater than or equal to 0.5 micrometers and less than or equal to 2 micrometers. That is, the boundary of the orthographic projection of the diffuse reflection layer 400 on the substrate 100 is indented by more than 0.5 micrometers and less than or equal to 2 micrometers relative to the boundary of the orthographic projection of the reflective layer 300 on the substrate 100. Figure 2 , 2 microns ≥ d ≥ 0.5 microns. For example, d can be 0.5 microns, 0.6 microns, 0.68 microns, 0.72 microns, 0.85 microns, 1.0 microns, 1.25 microns, 1.5 microns, 1.6 microns, 1.82 microns or 2 microns. It can be understood that large-angle light may be projected outside the reflective layer 300 through the diffuse reflection layer 400. The boundary of the orthographic projection of the diffuse reflection layer 400 of the present application on the substrate 100 is retracted relative to the boundary of the orthographic projection of the reflective layer 300 on the substrate 100, which can increase the probability of external large-angle light passing through the diffuse reflection layer 400 and projecting onto the reflective layer 300. The area of ​​the reflective layer 300 is larger than the area of ​​the diffuse reflection layer 400, so that more external light passing through the diffuse reflection layer 400 can be received.

[0095] like Figure 2 As shown, in some optional embodiments, the reflective layer 300 encloses a light-transmitting opening 310 , and the orthographic projection of the light-transmitting opening 310 on the substrate 100 overlaps with the orthographic projection of the isolation opening 230 on the substrate 100 .

[0096] In these optional embodiments, the isolation opening 230 is used to pass the emitted light of the light-emitting unit 800, and the reflective layer 300 is enclosed to form a light-transmitting opening 310. The orthographic projection of the light-transmitting opening 310 on the substrate 100 overlaps with the orthographic projection of the isolation opening 230 on the substrate 100, which can reduce the influence of the reflective layer 300 on the light-emitting range of the light-emitting unit 800, thereby making the surface area of ​​the reflective layer 300 larger, thereby improving the reflectivity.

[0097] Optional, such as Figure 2 As shown, a distance between a boundary of an orthographic projection of the light-transmitting opening 310 on the substrate 100 and a boundary of an orthographic projection of the diffuse reflection layer 400 on the substrate 100 is greater than or equal to 0.5 micrometers and less than or equal to 2 micrometers. Figure 2 2 microns ≥ d ≥ 0.5 microns, and the spacing between the boundary of the orthographic projection of the diffuse reflection layer 400 on the substrate 100 and the boundary of the orthographic projection of the light-transmitting opening 310 on the substrate 100 is greater than or equal to 0.5 microns and less than or equal to 2 microns, thereby increasing the probability of external large-angle light passing through the diffuse reflection layer 400 to the reflective layer 300, and reducing the external light passing through the diffuse reflection layer 400 into the isolation opening 230 to affect the light emitted by the light-emitting unit 800.

[0098] like Figure 3 As shown, in some optional embodiments, the orthographic projection of the reflective layer 300 on the substrate 100 is located within the orthographic projection of the diffuse reflective layer 400 on the substrate 100 .

[0099] In these optional embodiments, the reflective layer 300 is greatly affected by the light emission of the light-emitting unit 800, while the diffuse reflection layer 400 has a smaller effect on the light emission of the light-emitting unit 800. The light emission of the light-emitting unit 800 is taken into consideration in the design of the reflective layer 300, and the area of ​​the diffuse reflection layer 400 is set to be larger than that of the reflective layer 300. Therefore, the setting range of the diffuse reflection layer 400 is not affected by the reflective layer 300, which can increase the coverage area of ​​the diffuse reflection layer 400 of the display panel and improve the diffuse reflectivity.

[0100] Optional, such as Figure 3 As shown, the display panel further includes a pixel defining layer 500, which includes a pixel defining portion 510 and a plurality of pixel openings 520 formed by the pixel defining portion 510, and the pixel opening 520 is located in the isolation opening 230, that is, the orthographic projection of the pixel opening 520 on the substrate 100 is located in the orthographic projection of the isolation opening 230 on the substrate 100. The pixel opening 520 is used to accommodate the light-emitting unit 800 and isolate each light-emitting unit 800 from each other to reduce light crosstalk. The pixel opening 520 is located in the isolation opening 230, and the isolation opening 230 further isolates the light-emitting units 800 in each pixel opening 520 from each other to reduce large-angle light crosstalk and improve the display effect.

[0101] Optional, such as Figure 3 As shown, the pixel defining portion 510 includes a side wall 530 facing the pixel opening 520, and the orthographic projection of the diffuse reflection layer 400 on the substrate 100 is staggered with the orthographic projection of the side wall 530 on the substrate 100, that is, the orthographic projections of the two on the substrate 100 do not overlap.

[0102] The light-emitting unit 800 is located in the pixel opening 520 and extends to the side wall 530. The orthographic projection of the diffuse reflection layer 400 on the substrate 100 and the orthographic projection of the side wall 530 on the substrate 100 are staggered, thereby reducing the influence of the diffuse reflection layer 400 on the light output rate of the light-emitting unit 800, and can increase the coverage of the diffuse reflection layer 400 and enhance the diffuse reflection effect.

[0103] Optional, such as Figure 4 As shown, the orthographic projection of the diffuse reflection layer 400 on the substrate 100 at least partially overlaps with the orthographic projection of the side wall 530 on the substrate 100, thereby further increasing the coverage area of ​​the diffuse reflection layer 400 and improving the diffuse reflection effect.

[0104] Optional, such as Figure 4 As shown, the pixel defining layer 500 is disposed on one side of the substrate 100, and a first electrode 820 is disposed between the first surface 511 of the pixel defining layer 500 facing the substrate 100 and the substrate 100, and the first electrode 820 is exposed to the first area 540 formed by the first surface 511, and the diffuse reflection layer 400 is surrounded to form a diffuse reflection layer opening 410, and the edge of the orthographic projection of the diffuse reflection layer opening 410 on the substrate 100 overlaps with the edge of the orthographic projection of the first area 540 on the substrate 100. The light-emitting unit 800 includes a first electrode 820, a light-emitting structure 810, and a second electrode 830, which are sequentially disposed in a direction away from the substrate 100, and the first electrode 820 is connected to the light-emitting structure 810 through the first area 540, and the edge of the orthographic projection of the diffuse reflection layer opening 410 on the substrate 100 overlaps with the edge of the orthographic projection of the first area 540 on the substrate 100, so that the diffuse reflection layer 400 has the largest arrangement area without affecting the light emission of the light-emitting unit 800.

[0105] like Figure 4 As shown, in some optional embodiments, the orthographic projection of the reflective layer 300 on the substrate 100 and the orthographic projection of the side wall 530 on the substrate 100 are staggered, that is, the orthographic projections of the two on the substrate 100 do not overlap.

[0106] In these optional embodiments, the reflectivity of the reflective layer 300 is relatively high, and the reflective layer 300 and the side wall 530 are staggered, thereby reducing the influence of the reflective layer 300 on the light output of the light-emitting unit 800, and at the same time increasing the coverage area of ​​the reflective layer 300, so that more external light passing through the diffuse reflection layer 400 can be reflected back to the diffuse reflection layer 400 through the reflective layer 300.

[0107] Optional, such as Figure 5 As shown, the orthographic projection of the reflective layer 300 on the substrate 100 at least partially overlaps with the orthographic projection of the side wall 530 on the substrate 100, thereby further increasing the coverage area of ​​the reflective layer 300 and improving the diffuse reflection effect.

[0108] Optional, such as Figure 6 As shown, the reflective layer 300 is located on the side of the isolation structure 200 away from the substrate 100, and the reflective layer 300 is directly in contact with the isolation structure 200. This reduces the amount of light from the light-emitting unit 800 that is reflected by the reflective layer 300, thereby improving the display effect of the display panel.

[0109] In some optional embodiments, the reflectivity of the reflective layer 300 is greater than or equal to 85%.

[0110] In these optional embodiments, the reflective layer has a reflective effect on visible light, and the reflectivity of the reflective layer 300 for visible light can be 85%, 88%, 90%, 95%, 98%, etc., thereby improving the diffuse reflection effect of the display panel. The wavelength range of visible light is 380nm-780nm, and the average reflectivity of the reflective layer 300 for visible light is greater than or equal to 85%.

[0111] Optionally, the material of the reflective layer 300 includes metal.

[0112] Metal materials have a high reflectivity and can be manufactured on the same layer as the metal layer in the display panel, thereby simplifying the process.

[0113] Optionally, the material of the reflective layer 300 includes aluminum, silver or gold.

[0114] like Figure 2 As shown, in some optional embodiments, the display panel further includes an encapsulation layer, and the encapsulation layer is disposed on a side of the isolation structure 200 facing away from the substrate 100 .

[0115] In these optional embodiments, the encapsulation layer is used to encapsulate the light-emitting unit 800 to reduce the entry of water, oxygen, etc. into the light-emitting unit 800, thereby improving the reliability of the display panel.

[0116] like Figure 2As shown, in some optional embodiments, the encapsulation layer includes a first encapsulation layer 610. The first encapsulation layer 610 is used to provide encapsulation protection for each light-emitting unit 800 to reduce the intrusion of water, oxygen, etc. into the light-emitting unit 800.

[0117] Optional, such as Figure 2 As shown, the first encapsulation layer 610 includes an encapsulation portion partially located in the isolation opening 230. When the light emitting unit 800 includes a first electrode 820, a light emitting structure 810, and a second electrode 830 sequentially arranged in a direction away from the substrate 100, the encapsulation portion can be located on a side of each second electrode 830 away from the light emitting structure 810.

[0118] Optional, such as Figure 2 As shown, the encapsulation portion includes a first portion 611 and a second portion 612, the first portion 611 is located at the isolation opening 230, and the second portion 612 is connected to the peripheral side of the first portion 611 and extends to the side of the isolation structure 200 away from the substrate 100. The first portion 611 and the second portion 612 are integrally arranged to provide more sealed protection for the light-emitting unit 800 in the isolation opening 230. The first portion 611 extends from the light-emitting structure 810 to the side of the first sub-layer 210 facing the substrate 100, and the second portion 612 extends from the first portion 611 toward the peripheral side of the first sub-layer 210 to the side of the isolation structure 200 away from the substrate 100.

[0119] Optionally, the material of the first encapsulation layer 610 includes an inorganic material.

[0120] Optional, such as Figure 6 As shown, the reflective layer 300 is disposed on the side of the isolation structure 200 away from the substrate 100 and on the side of the second portion 612 facing the substrate 100 , and at least part of the diffuse reflective layer 400 is disposed on the side of the first encapsulation layer 610 away from the substrate 100 .

[0121] The orthographic projection of the reflective layer 300 on the substrate 100 at least partially overlaps with the orthographic projection of the isolation structure 200 on the substrate 100, and the orthographic projection of the reflective layer 300 on the substrate 100 at least partially overlaps with the orthographic projection of the second portion 612 on the substrate 100. Optionally, the reflective layer 300 is directly contacted with the isolation structure 200, thereby reducing the light of the light-emitting unit 800 from being incident on the reflective layer 300 to form reflected light, thereby improving the display effect of the display panel.

[0122] Optional, such as Figure 6 As shown, the orthographic projection of the diffuse reflection layer 400 on the substrate 100 at least partially overlaps with the orthographic projection of the second portion 612 on the substrate 100 .

[0123] like Figure 2As shown, in some optional embodiments, the encapsulation layer further includes a second encapsulation layer 620 , and the second encapsulation layer 620 is disposed between the first encapsulation layer 610 and the third encapsulation layer 630 .

[0124] In these optional embodiments, the second encapsulation layer 620 may be a whole structural layer, and the second encapsulation layer 620 may be used to cover the entire display area of ​​the display panel. Part of the second encapsulation layer 620 fills the isolation opening 230 and extends from the isolation opening 230 to the side of the isolation structure 200 away from the substrate 100. The second encapsulation layer 620 is used to cover the isolation structure 200 and fill the isolation opening 230 to flatten the display panel, thereby simplifying the film forming process of the reflective layer 300.

[0125] Optionally, the material of the second encapsulation layer 620 includes an organic material.

[0126] Optional, such as Figure 2 As shown, the reflective layer 300 and the diffuse reflective layer 400 are disposed on the side of the packaging layer away from the substrate 100 .

[0127] In these optional embodiments, the encapsulation layer encapsulates the isolation structure 200 and the isolation opening 230 , thereby making it easier to pattern the reflective layer 300 into a film, thereby reducing the difficulty of the process.

[0128] Optional, such as Figure 2 As shown, the encapsulation layer includes a third encapsulation layer 630 , which is disposed on the side of the isolation structure 200 away from the substrate 100 , and the reflection layer 300 and the diffuse reflection layer 400 are disposed on the side of the third encapsulation layer 630 away from the substrate 100 .

[0129] In these optional embodiments, the reflective layer 300 and the diffuse reflection layer 400 are arranged on the side of the third packaging layer 630 away from the substrate 100, that is, the reflective layer 300 and the diffuse reflection layer 400 are arranged on the side of the third packaging layer 630 away from the isolation structure 200, and the isolation structure 200 has an isolation opening 230 formed by enclosing. The third packaging layer 630 encapsulates the isolation structure 200 and the isolation opening 230, thereby making it easier to pattern the reflective layer 300 into a film, thereby reducing the difficulty of the process.

[0130] like Figure 2 As shown, in some optional embodiments, the reflective layer 300 is reused as the touch electrode 700 .

[0131] In these optional embodiments, the touch electrode 700 is made of metal material, and the reflective layer 300 is disposed on the entire surface of the display panel and is made of metal material, so that the reflective layer 300 can be reused as the touch electrode 700, reducing the influence of the reflective layer 300 on the thickness of the display panel.

[0132] In some other optional embodiments, Figures 7 to 9 As shown, the display panel also includes a touch electrode 700, which is arranged on the side of the third packaging layer 630 away from the substrate 100. Different from the above embodiments, the reflective layer 300 is not reused as the touch electrode 700. The touch electrode 700 is arranged on the side of the third packaging layer 630 away from the substrate 100. The third packaging layer 630 encapsulates the isolation structure 200 and the isolation opening 230, so that the touch electrode 700 is easier to pattern into a film, thereby reducing the difficulty of the process.

[0133] Alternatively, if Figure 7 As shown, the surface of the third encapsulation layer 630 facing away from the substrate 100 is parallel to the plane where the substrate 100 is located, so that it is easier to achieve patterned film formation of the touch electrode 700 or the reflective layer 300 .

[0134] Optionally, the material of the third encapsulation layer 630 includes an inorganic material. The inorganic material has a good barrier effect on water, oxygen, etc., thereby reducing the entry of water, oxygen, etc. into the light-emitting unit 800 and improving the reliability of the display panel.

[0135] like Figure 7 As shown, in some optional embodiments, the touch electrode 700 is disposed between the reflective layer 300 and the third encapsulation layer 630 , and the orthographic projection of the touch electrode 700 on the substrate 100 at least partially overlaps with the orthographic projection of the reflective layer 300 on the substrate 100 .

[0136] In these optional embodiments, the touch electrode 700 is made of metal material and has a certain reflective effect on external light. The reflective layer 300 can block at least part of the touch electrode 700, thereby reducing the reflectivity of the touch electrode 700 to external light and improving the reflective hue of the display panel.

[0137] like Figure 8 and Fig. 9 As shown, in some optional embodiments, the touch electrode 700 is disposed on the side of the reflective layer 300 facing away from the substrate 100 , and the orthographic projection of the touch electrode 700 on the substrate 100 at least partially overlaps with the orthographic projection of the reflective layer 300 on the substrate 100 .

[0138] In these optional embodiments, the light-emitting unit 800 includes a light-emitting structure 810 and a first electrode 820 and a second electrode 830 disposed on both sides of the light-emitting structure 810. The touch electrode 700 is disposed on the side of the reflective layer 300 away from the substrate 100. Since the reflective layer 300 includes a metal material, it can shield the signal crosstalk between the first electrode 820 and the second electrode 830 and the touch electrode 700. Figure 8 As shown, the touch electrode 700 can be disposed on the side of the diffuse reflection layer 400 facing away from the substrate 100, or, as shown in FIG. Fig. 9As shown, the touch electrode 700 may be disposed between the reflective layer 300 and the diffuse reflective layer 400 .

[0139] Optionally, the substrate 100 further includes a driving circuit layer, the driving circuit layer includes thin film transistors and signal lines, and the reflective layer 300 can also shield the signal crosstalk between the touch electrodes 700 and the driving circuit layer.

[0140] Optionally, at least part of the orthographic projection of the touch electrode 700 on the substrate 100 is located within the orthographic projection of the reflective layer 300 on the substrate 100. The area of ​​the touch electrode 700 is smaller than the area of ​​the reflective layer 300, thereby preventing the touch electrode 700 from completely shielding the reflective layer 300 and reducing the impact on the reflectivity of the reflective layer 300. In addition, the orthographic projection of the touch electrode 700 on the substrate 100 is located within the orthographic projection of the reflective layer 300 on the substrate 100, further improving the effect of preventing signal crosstalk.

[0141] Optionally, the touch electrode 700 includes a light-transmitting material, so as to reduce the shielding of the reflective layer 300 by the touch electrode 700 . The material of the touch electrode 700 may include an indium tin oxide material.

[0142] Optional, such as Figure 8 As shown, the touch electrode 700 is disposed on the side of the diffuse reflection layer 400 away from the substrate 100. That is, along the direction away from the substrate 100, the reflective layer 300, the diffuse reflection layer 400 and the touch electrode 700 are sequentially disposed, so that the distance between the reflective layer 300 and the diffuse reflection layer 400 can be made smaller, reducing the risk of external light from a large angle not being emitted to the reflective layer 300 after passing through the diffuse reflection layer 400, thereby improving the diffuse reflection efficiency of the display panel.

[0143] Optional, such as Fig. 9 As shown, the touch electrode 700 is arranged between the diffuse reflection layer 400 and the reflective layer 300, so that the distance between the touch electrode 700 and the reflective layer 300 is smaller, the shielding effect of the electric signal is enhanced, and part of the external light is reflected to the diffuse reflection layer 400 after hitting the touch electrode 700, thereby enhancing the diffuse reflectivity of the display panel.

[0144] Optionally, the substrate 100 may be made of glass, polyimide (PI), etc. When the substrate 100 is made of polyimide material, it is a flexible substrate, so that the display panel can be used to manufacture a flexible display panel.

[0145] Optionally, the driving circuit layer is used to drive the light-emitting unit 800 to emit light; the driving circuit layer includes a transistor and a storage capacitor. The transistor includes a semiconductor portion, a gate, a source and a drain. Among them, the driving circuit layer can be any one of a 2T1C circuit, a 7T1C circuit, a 7T2C circuit, or a 9T1C circuit. In this article, a "2T1C circuit" refers to a circuit including 2 transistors and 1 capacitor in the circuit, and other "7T1C circuits", "7T2C circuits", "9T1C circuits", etc. are deduced in this way.

[0146] like Fig.10 and Fig.11 As shown, in some optional embodiments, the display panel further includes a shading portion 910, which is located on the side of the reflective layer 300 facing the substrate 100, and the orthographic projection of the shading portion 910 on the substrate 100 at least partially overlaps with the orthographic projection of the reflective layer 300 on the substrate 100.

[0147] In these optional embodiments, a shading portion 910 is provided in the display panel, and the orthographic projection of the shading portion 910 on the substrate 100 at least partially overlaps with the orthographic projection of the reflective layer 300 on the substrate 100. The shading portion 910 is used to reduce the reflected light formed by the light-emitting unit 800 directly irradiating the reflective layer 300, thereby improving the display effect of the display panel.

[0148] Optional, such as Fig.11 As shown, the light shielding portion 910 is disposed in contact with the reflective layer 300 , thereby reducing the spacing between the light shielding portion 910 and the reflective layer 300 , and further reducing the reflected light formed by the light emitting unit 800 directly irradiating the reflective layer 300 .

[0149] Optional, such as Fig.10 and Fig.11 As shown, the orthographic projection of the shading portion 910 on the substrate 100 at least partially overlaps with the orthographic projection of the diffuse reflection layer 400 on the substrate 100. The shading portion 910 is used to reduce the diffuse reflection light formed by the light-emitting unit 800 directly irradiating the diffuse reflection layer 400, thereby improving the display effect of the display panel.

[0150] Optional, such as Fig.10 and Fig.11 As shown, the light shielding portion 910 is disposed between the encapsulation layer and the reflective layer 300. Since the encapsulation layer is disposed between the reflective layer 300 and the isolation structure 200, the isolation structure 200 fails to block the light of the light emitting unit 800 from radiating to the reflective layer 300. The light shielding portion 910 is disposed between the encapsulation layer and the reflective layer 300 to reduce the light of the light emitting unit 800 directly radiating to the reflective layer 300 to form reflected light, thereby improving the display effect of the display panel.

[0151] like Fig.12As shown, in some optional embodiments, an anti-reflection layer 920 is further arranged between the reflective layer 300 and the diffuse reflection layer 400, and the orthographic projection of the anti-reflection layer 920 on the substrate 100 at least partially overlaps with the orthographic projection of the reflective layer 300 on the substrate 100, and the orthographic projection of the anti-reflection layer 920 on the substrate 100 at least partially overlaps with the orthographic projection of the diffuse reflection layer 400 on the substrate 100.

[0152] In these optional embodiments, the reflected light formed by the external light on the reflective layer 300 is emitted to the diffuse reflection layer 400, which will produce partial reflected light and affect the diffuse reflection effect. The anti-reflection layer 920 is arranged between the reflective layer 300 and the diffuse reflection layer 400. The reflected light formed by the external light on the reflective layer 300 is emitted to the diffuse reflection layer 400 through the anti-reflection layer 920 to reduce the reflected light of the diffuse reflection layer 400 and improve the diffuse reflection effect.

[0153] Optionally, the refractive index of the anti-reflection layer 920 is between the refractive index of the diffuse reflection layer 400 and the refractive index of the reflective layer 300, thereby reducing the refractive index gradient of the reflective layer 300 directly irradiating the diffuse reflection layer 400, thereby reducing the generation of reflected light and improving the diffuse reflection effect. 1 , the refractive index of the reflective layer 300 is N 2 , the refractive index N of the antireflection layer 920 3 satisfy:

[0154] N 3 =√(N 1 ×N 2 )

[0155] like Figure 2 As shown, in some optional embodiments, the isolation structure 200 includes a first sublayer 210 and a second sublayer 220, the first sublayer 210 is located on the side of the second sublayer 220 facing the substrate 100, and the orthographic projection of the first sublayer 210 on the substrate 100 is located within the orthographic projection of the second sublayer 220 on the substrate 100.

[0156] In these optional embodiments, the orthographic projection size of the first sublayer 210 on the substrate 100 is smaller than the orthographic projection size of the second sublayer 220 on the substrate 100, so as to form a concave under the second sublayer 220. During the preparation of the light-emitting structure 810, the material of the light-emitting structure 810 can be separated into mutually independent light-emitting structures 810 by the isolation structure 200, and the precision mask plate evaporation process can be omitted, thereby reducing the preparation cost. The isolation opening 230 is formed by the second sublayer 220.

[0157] Optionally, the material of the first sub-layer 210 includes aluminum, silver or copper.

[0158] Optional, such as Figure 2As shown, the orthographic projection of the reflective layer 300 on the substrate 100 is located within the orthographic projection of the second sub-layer 220 on the substrate 100. The orthographic projection size of the second sub-layer 220 is larger than that of the first sub-layer 210, the boundary of the isolation opening 230 coincides with the boundary of the second sub-layer 220, and the orthographic projection of the reflective layer 300 on the substrate 100 is located within the orthographic projection of the second sub-layer 220 on the substrate 100, thereby reducing the influence of the reflective layer 300 on the light output of the light-emitting unit 800.

[0159] Optional, such as Figure 2 As shown, the second sublayer 220 includes a metal material, and optionally, the material of the second sublayer 220 may include titanium or molybdenum. The orthographic projection of the reflective layer 300 on the substrate 100 is located within the orthographic projection of the second sublayer 220 on the substrate 100. The stacking arrangement of the reflective layer 300 and the second sublayer can further improve the reflectivity. After the external light passes through the diffuse reflection layer 400, it is reflected by the reflective layer 300 for the first time. After passing through the reflective layer 300, part of the light is reflected again by the second sublayer 220 and then returns to the diffuse reflection layer 400 after passing through the reflective layer 300.

[0160] Optionally, the isolation structure 200 further includes a third sublayer 240, which is disposed on the side of the first sublayer 210 facing the substrate 100. Optionally, the material of the third sublayer 240 includes molybdenum or titanium. When the first sublayer 210 is formed by etching, the third sublayer 240 is not easily affected by the etching, and can provide better protection for the substrate 100.

[0161] Optional, such as Figure 2 As shown, the orthographic projection of the first sublayer 210 on the substrate 100 is located within the orthographic projection of the third sublayer 240 on the substrate 100, thereby enhancing the protective effect of the third sublayer 240 on the substrate 100 and reducing damage to the substrate 100 when etching to form the first sublayer 210.

[0162] In some optional embodiments, the diffuse reflection layer 400 includes a main material and refractive particles doped in the main material.

[0163] In these optional embodiments, when refractive particles are arranged on external light, part of the external light will generate part of reflected light when entering the high refractive index layer from the low refractive index layer.

[0164] Optionally, the diffuse reflection layer 400 includes multiple refractive particles. External light is irradiated onto the refractive particles. Due to the different morphologies of the refractive particles and the different incident angles of the external light on each refractive particle, the reflected light angles of each refractive particle are different, thereby achieving a diffuse reflection effect and improving the diffuse reflectivity of the display panel.

[0165] Optionally, the refractive particles include at least one of titanium oxide or zirconium oxide, the diffuse reflection layer 400 includes titanium oxide particles or zirconium oxide particles, or the diffuse reflection layer 400 includes titanium oxide and zirconium oxide particles.

[0166] Optionally, the main material includes an organic material, and the refractive particles are doped into the organic material. The refractive particles are doped into the organic material and formed into a film on the reflective layer 300 to form the diffuse reflective layer 400 .

[0167] Optionally, the organic material may include at least one of polyimide, polystyrene or polymethyl methacrylate, which are all light-transmitting materials, thereby reducing the influence of the diffuse reflection layer 400 on the light output of the display panel.

[0168] The embodiment of the first aspect of the present application further provides a display panel, including a substrate 100, a reflective layer 300 and a diffuse reflective layer 400, wherein the reflective layer 300 is arranged on one side of the substrate 100; and the diffuse reflective layer 400 is arranged on the side of the reflective layer 300 away from the substrate 100.

[0169] In this embodiment, the reflective layer 300 is disposed on one side of the substrate 100, and the diffuse reflection layer 400 is disposed on the side of the reflective layer 300 away from the substrate 100. External light is irradiated to the diffuse reflection layer 400, and part of the light passes through the diffuse reflection layer 400 and is reflected back to the diffuse reflection layer 400 by the reflective layer 300, thereby improving the reflectivity of the diffuse reflection layer 400, thereby improving the diffuse reflection effect of the display panel and improving the degree of integration of the display panel with surrounding materials and background.

[0170] In some optional embodiments, the structures and positions of the diffuse reflection layer 400 and the reflective layer 300 are as described above and are not repeated here. For example, the orthographic projection of the diffuse reflection layer 400 on the substrate 100 and the orthographic projection of the reflective layer 300 on the substrate 100 at least partially overlap, thereby improving the diffuse reflection effect.

[0171] The embodiment of the second aspect of the present application also provides a display device, including the display panel of any of the above-mentioned embodiments of the first aspect. Since the display device provided by the embodiment of the second aspect of the present application includes the display panel of any of the above-mentioned embodiments of the first aspect, the display device provided by the embodiment of the second aspect of the present application has the beneficial effects of the display panel of any of the above-mentioned embodiments of the first aspect, which will not be repeated here.

[0172] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0173] The third aspect of the present application also provides a method for manufacturing a display panel. Fig.13 As shown, including:

[0174] Step S01 : forming an isolation structure 200 and a reflective layer 300 on one side of a substrate 100 , wherein the isolation structure 200 encloses a plurality of isolation openings 230 , and the reflective layer 300 is located on a side of the isolation structure 200 away from the substrate 100 .

[0175] Step S02 : forming a diffuse reflection layer 400 on the side of the reflection layer 300 facing away from the substrate 100 .

[0176] In this embodiment, the isolation structure 200 encloses a plurality of isolation openings 230, and the isolation openings 230 are used to accommodate the light emitting units 800. The isolation structure 200 can reduce the light crosstalk between the light emitting units 800, thereby improving the display effect. The reflective layer 300 is disposed on the side of the isolation structure 200 away from the substrate 100, and the diffuse reflection layer 400 is disposed on the side of the reflective layer 300 away from the substrate 100. When external light is incident on the diffuse reflection layer 400, part of the light passes through the diffuse reflection layer 400 and is reflected back to the diffuse reflection layer 400 by the reflective layer 300, thereby improving the reflectivity of the diffuse reflection layer 400, thereby improving the diffuse reflection effect of the display panel, and improving the degree of integration of the display panel with the surrounding materials and background.

[0177] Optionally, the orthographic projection of the reflective layer 300 on the substrate 100 at least partially overlaps with the orthographic projection of the diffuse reflection layer 400 on the substrate 100, thereby improving the diffuse reflection effect.

[0178] Optionally, the orthographic projection of the reflective layer 300 on the substrate 100 at least partially overlaps with the orthographic projection of the isolation structure 200 on the substrate 100, thereby reducing the influence of the reflective layer 300 on the light output of the light-emitting unit 800 in the isolation opening 230, reducing the influence of the reflective layer 300 on the display effect of the display panel, and improving the performance of the display panel.

[0179] The third aspect of the present application also provides a method for manufacturing a display panel. Fig.14 As shown, step S01 may include:

[0180] Step S21 : forming an isolation structure material layer on one side of the substrate 100 .

[0181] Step S22 : forming a reflective metal layer on the side of the isolation structure material layer facing away from the substrate 100 .

[0182] Step S23: forming a protective layer on the side of the reflective metal layer facing away from the substrate.

[0183] Step S24: patterning the protective layer and the reflective metal layer to form the reflective layer 300 and a protective portion of the reflective layer 300 facing away from the substrate 100 , and exposing the isolation structure material layer.

[0184] Step S25 : etching the isolation structure material layer to form the isolation structure 200 , wherein the orthographic projection of the isolation structure 200 on the substrate 100 at least partially overlaps with the orthographic projection of the reflective layer 300 on the substrate 100 .

[0185] Step S26: removing the protection portion.

[0186] In this embodiment, the protection part covers the reflective layer 300 to protect the reflective layer 300. When etching to form the isolation structure 200, the protection part can protect the reflective layer 300 during etching. The isolation structure 200 material layer is etched to form the isolation structure 200. The reflective layer 300 is located on the side of the isolation structure 200 away from the substrate 100. The orthographic projection of the isolation structure 200 on the substrate 100 at least partially overlaps with the orthographic projection of the reflective layer 300 on the substrate 100. The protection part can be removed after the isolation structure 200 is manufactured.

[0187] Step S27: Prepare the light-emitting unit 800 and the packaging part.

[0188] The light-emitting unit 800 may include light-emitting units 800 of multiple colors, for example, a red light-emitting unit, a green light-emitting unit, and a blue light-emitting unit. The light-emitting units of different colors are located in the isolation opening 230 formed by the corresponding isolation structure, and the packaging part can independently package different light-emitting units 800 to ensure the packaging effect.

[0189] Of course, in other embodiments, such as Fig.15 As shown, the manufacturing method thereof may include:

[0190] Step S31 : forming an isolation structure material layer on one side of the substrate 100 , and patterning the isolation structure material layer to form an isolation structure 200 , wherein the isolation structure 200 encloses a plurality of isolation openings 230 .

[0191] Step S32 : forming the light emitting unit 800 and the encapsulation part at the isolation opening 230 .

[0192] The light emitting unit 800 is independently packaged by the packaging part.

[0193] Step S32: forming a reflective layer 300 on a side of the isolation structure 200 facing away from the substrate 100;

[0194] Step S33 : forming a diffuse reflection layer 400 on the side of the reflection layer 300 facing away from the substrate 100 .

[0195] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that: include: substrate; An isolation structure is disposed on one side of the substrate, and the isolation structure encloses a plurality of isolation openings; A reflective layer, disposed on a side of the isolation structure away from the substrate; The diffuse reflection layer is arranged on a side of the reflection layer away from the substrate.

2. The display panel according to claim 1, characterized in that: The orthographic projection of the diffuse reflection layer on the substrate and the orthographic projection of the reflection layer on the substrate at least partially overlap; Preferably, the orthographic projection of the reflective layer on the substrate at least partially overlaps with the orthographic projection of the isolation structure on the substrate; Preferably, the orthographic projection of the diffuse reflection layer on the substrate is located within the orthographic projection of the reflection layer on the substrate; Preferably, the distance between the boundary of the orthographic projection of the diffuse reflection layer on the substrate and the boundary of the orthographic projection of the reflection layer on the substrate is greater than or equal to 0.5 micrometers and less than or equal to 2 micrometers; Preferably, the reflective layer encloses a light-transmitting opening, and an orthographic projection of the light-transmitting opening on the substrate overlaps with an orthographic projection of the isolation opening on the substrate; Preferably, the reflective layer is located on a side of the isolation structure facing away from the substrate, and the reflective layer is arranged in contact with the isolation structure.

3. The display panel according to claim 1, characterized in that: The orthographic projection of the reflective layer on the substrate is located within the orthographic projection of the diffuse reflective layer on the substrate; Preferably, the display panel further comprises a pixel defining layer, the pixel defining layer comprises a pixel defining portion and a plurality of pixel openings formed by enclosing the pixel defining portion, and the pixel openings are located within the isolation openings; Preferably, the pixel defining portion includes a side wall facing the pixel opening, and an orthographic projection of the diffuse reflection layer on the substrate and an orthographic projection of the side wall on the substrate are arranged in a staggered manner.

4. The display panel according to claim 3, characterized in that: The pixel defining portion comprises a side wall facing one side of the pixel opening, and the orthographic projection of the diffuse reflection layer on the substrate at least partially overlaps with the orthographic projection of the side wall on the substrate; Preferably, the pixel defining layer is disposed on one side of the substrate, a first electrode is disposed between a first surface of the pixel defining layer facing the substrate and the substrate, the first electrode is exposed to a first area enclosed by the first surface, the diffuse reflection layer encloses a diffuse reflection layer opening, and an edge of an orthographic projection of the diffuse reflection layer opening on the substrate overlaps an edge of an orthographic projection of the first area on the substrate; Preferably, the orthographic projection of the reflective layer on the substrate and the orthographic projection of the side wall on the substrate are staggered; or, the orthographic projection of the reflective layer on the substrate and the orthographic projection of the side wall on the substrate at least partially overlap.

5. The display panel according to claim 1, characterized in that: The reflectivity of the reflective layer is greater than or equal to 85%; Preferably, the material of the reflective layer includes metal; Preferably, the material of the reflective layer includes aluminum, silver or gold.

6. The display panel according to claim 1, characterized in that: The display panel further comprises an encapsulation layer, wherein the encapsulation layer is arranged on a side of the isolation structure away from the substrate; Preferably, the encapsulation layer comprises a first encapsulation layer, and the first encapsulation layer comprises an encapsulation portion partially located in the isolation opening; Preferably, the packaging portion comprises a first portion and a second portion, the first portion is located at the isolation opening, and the second portion is connected to a peripheral side of the first portion and extends to a side of the isolation structure away from the substrate; Preferably, the material of the first encapsulation layer includes an inorganic material; Preferably, the reflective layer is arranged on a side of the isolation structure away from the substrate and is located on a side of the second portion facing the substrate, and at least part of the diffuse reflective layer is arranged on a side of the first encapsulation layer away from the substrate; Preferably, the encapsulation layer further includes a second encapsulation layer and a third encapsulation layer, and the second encapsulation layer is arranged between the first encapsulation layer and the third encapsulation layer; Preferably, the material of the second encapsulation layer includes an organic material, and the material of the third encapsulation layer includes an inorganic material; Preferably, the reflective layer and the diffuse reflective layer are arranged on a side of the packaging layer away from the substrate; Preferably, the reflective layer and the diffuse reflective layer are arranged on a side of the third packaging layer away from the substrate.

7. The display panel according to claim 6, characterized in that: The display panel further includes a light shielding portion, the light shielding portion is located on a side of the reflective layer facing the substrate, and an orthographic projection of the light shielding portion on the substrate at least partially overlaps with an orthographic projection of the reflective layer on the substrate; Preferably, the orthographic projection of the light shielding portion on the substrate at least partially overlaps with the orthographic projection of the diffuse reflection layer on the substrate; Preferably, the shading portion is disposed between the encapsulation layer and the reflective layer.

8. The display panel according to claim 6, characterized in that: The display panel further includes a touch electrode, and the touch electrode is arranged on a side of the third encapsulation layer away from the substrate; Preferably, the reflective layer is reused as the touch electrode; Preferably, the touch electrode is disposed between the reflective layer and the third encapsulation layer, and an orthographic projection of the touch electrode on the substrate at least partially overlaps with an orthographic projection of the reflective layer on the substrate; Preferably, the touch electrode is arranged on a side of the reflective layer away from the substrate, and an orthographic projection of the touch electrode on the substrate at least partially overlaps with an orthographic projection of the reflective layer on the substrate; Preferably, at least part of the orthographic projections of the touch electrodes on the substrate are located within the orthographic projections of the reflective layer on the substrate; Preferably, the touch electrode comprises a light-transmitting material; Preferably, the touch electrode is arranged on a side of the diffuse reflection layer away from the substrate.

9. The display panel according to claim 2, characterized in that: An anti-reflection layer is further provided between the reflective layer and the diffuse reflective layer, the orthographic projection of the anti-reflection layer on the substrate at least partially overlaps with the orthographic projection of the reflective layer on the substrate, and the orthographic projection of the anti-reflection layer on the substrate at least partially overlaps with the orthographic projection of the diffuse reflective layer on the substrate; Preferably, the refractive index of the anti-reflection layer is between the refractive index of the diffuse reflection layer and the refractive index of the reflection layer; Preferably, the refractive index N3 of the anti-reflection layer satisfies: N3=√(N1×N2) The refractive index of the diffuse reflection layer is N1, and the refractive index of the reflection layer is N2.

10. The display panel according to claim 1, characterized in that: The isolation structure comprises a first sublayer and a second sublayer, the first sublayer is located on a side of the second sublayer facing the substrate, and an orthographic projection of the first sublayer on the substrate is located within an orthographic projection of the second sublayer on the substrate; Preferably, the orthographic projection of the reflective layer on the substrate is located within the orthographic projection of the second sub-layer on the substrate; Preferably, the isolation structure further comprises a third sublayer, and the third sublayer is arranged on a side of the first sublayer facing the substrate; Preferably, the orthographic projection of the first sub-layer on the substrate is located within the orthographic projection of the third sub-layer on the substrate; Preferably, the material of the first sublayer includes aluminum, copper or silver; Preferably, the material of the second sublayer includes titanium or molybdenum; Preferably, the material of the third sublayer includes molybdenum or titanium.

11. The display panel according to claim 1, characterized in that: The diffuse reflection layer includes a main material and refractive particles doped in the main material; Preferably, the refractive particles include at least one of titanium oxide or zirconium oxide; Preferably, the host material comprises an organic material; Preferably, the organic material may include at least one of polyimide, polystyrene or polymethyl methacrylate.

12. A display panel, characterized in that: include: substrate; A reflective layer, disposed on one side of the substrate; The diffuse reflection layer is arranged on a side of the reflection layer away from the substrate.

13. The display panel according to claim 12, characterized in that: The orthographic projection of the diffuse reflection layer on the substrate and the orthographic projection of the reflection layer on the substrate at least partially overlap; Preferably, the orthographic projection of the diffuse reflection layer on the substrate is located within the orthographic projection of the reflection layer on the substrate; Preferably, the distance between the boundary of the orthographic projection of the diffuse reflection layer on the substrate and the boundary of the orthographic projection of the reflection layer on the substrate is greater than or equal to 0.5 micrometers and less than or equal to 2 micrometers; Preferably, the orthographic projection of the reflective layer on the substrate is located within the orthographic projection of the diffuse reflection layer on the substrate.

14. A display device, characterized in that: A display panel comprising any one of claims 1-13.

15. A method for manufacturing a display panel, characterized in that: include: An isolation structure and a reflective layer are formed on one side of the substrate, wherein the isolation structure encloses a plurality of isolation openings; The reflective layer is located on a side of the isolation structure away from the substrate; A diffuse reflection layer is formed on the side of the reflection layer facing away from the substrate.

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