Display panel, method for manufacturing display panel, and display device

Abstract

Embodiments of the present application provide a display panel, a preparation method of the display panel and a display device. The display panel comprises: a substrate; an isolation structure arranged on the substrate and surrounding an isolation opening, the isolation opening being used for accommodating a light emitting unit; a first encapsulation layer comprising an encapsulation part used for encapsulating each light emitting unit; and an optical adjustment layer arranged on a side of the encapsulation part away from the substrate, the optical adjustment layer comprising a first sub-layer and a second sub-layer stacked in a direction away from the substrate, a refractive index of the first sub-layer being less than a refractive index of the second sub-layer, wherein the first sub-layer is surrounded by a light transmission hole, a normal projection of the light transmission hole on the substrate at least partially overlaps a normal projection of the light emitting unit on the substrate, and the second sub-layer comprises an extension part filled in the light transmission hole. The present application can improve the use performance of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display panel, a method for manufacturing the display panel, and a display device. Background Technology

[0002] Organic light-emitting diodes (OLEDs) and flat panel displays based on light-emitting diodes (LEDs) are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body, and wide range of applications, becoming the mainstream of display devices.

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

[0004] This application provides a display panel, a method for manufacturing the display panel, and a display device, aiming to improve the process performance of the display panel.

[0005] An embodiment of the first aspect of this application provides a display panel, comprising: a substrate; an isolation structure disposed on the substrate and forming an isolation opening, the isolation opening being used to accommodate light-emitting units; a first encapsulation layer including an encapsulation portion for encapsulating each light-emitting unit; an optical adjustment layer disposed on the side of the encapsulation portion away from the substrate, wherein the optical adjustment layer has a first sub-layer and a second sub-layer stacked in a direction away from the substrate, the refractive index of the first sub-layer being less than the refractive index of the second sub-layer, wherein the first sub-layer surrounds a light-transmitting hole, the orthographic projection of the light-transmitting hole on the substrate at least overlaps with the orthographic projection portion of the light-emitting unit on the substrate, and the second sub-layer includes an extension portion filling the light-transmitting hole.

[0006] According to an embodiment of the first aspect of this application, a pixel definition layer is further included. The pixel definition layer includes a pixel defining portion and a pixel opening formed by the pixel defining portion. The pixel opening and the isolation opening are connected and used to accommodate the light-emitting unit.

[0007] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the light-transmitting hole on the substrate.

[0008] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure is located on the side of the pixel definition layer away from the substrate.

[0009] According to any of the foregoing embodiments of the first aspect of this application, the encapsulation portion includes a first portion and a second portion, the first portion being located within an isolation opening, and the second portion being connected to the periphery of the first portion and extending to the side of the isolation structure away from the substrate.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the second portion onto the substrate and the orthographic projection of the first sublayer onto the substrate at least partially overlap.

[0011] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the second portion onto the substrate is located within the orthographic projection of the first sublayer onto the substrate.

[0012] According to any of the foregoing embodiments of the first aspect of this application, the first sublayer includes a plurality of adjustment portions, each of which has a light-transmitting hole.

[0013] According to any of the foregoing embodiments of the first aspect of this application, a light-transmitting hole is provided through the adjustment portion.

[0014] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the second portion on the substrate is located within the orthographic projection of the adjustment portion on the substrate.

[0015] According to any of the foregoing embodiments of the first aspect of this application, the second portions of two adjacent encapsulation portions are provided with a first gap at intervals on the side of the isolation structure away from the substrate, and two adjacent adjustment portions are provided at intervals.

[0016] According to any of the foregoing embodiments of the first aspect of this application, the adjustment portion coincides with the outer edge of the substrate orthographic projection and the second portion coincides with the outer surface of the substrate orthographic projection, or the adjustment portion extends to the first gap and covers the side of the second portion facing the first gap.

[0017] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the adjustment portion on the substrate is ring-shaped.

[0018] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the first portion onto the substrate and the orthographic projection of the adjustment portion onto the substrate overlap.

[0019] According to any of the foregoing embodiments of the first aspect of this application, the second portions of two adjacent encapsulation portions are spaced apart on the side of the isolation structure away from the substrate to form a first gap, and the second sublayer fills the first gap.

[0020] According to any of the foregoing embodiments of the first aspect of this application, the first sub-layer fills the first gap.

[0021] According to any of the foregoing embodiments of the first aspect of this application, it further includes a second encapsulation layer, wherein the second encapsulation layer and the second sublayer are reused; or, the second encapsulation layer is located on the side of the second sublayer away from the substrate.

[0022] According to any of the foregoing embodiments of the first aspect of this application, the material of the second encapsulation layer includes organic materials.

[0023] According to any of the foregoing embodiments of the first aspect of this application, a third encapsulation layer is further included, located on the side of the second encapsulation layer opposite to the substrate.

[0024] According to any of the foregoing embodiments of the first aspect of this application, the material of the third encapsulation layer includes inorganic materials.

[0025] According to any of the foregoing embodiments of the first aspect of this application, the material of the first encapsulation layer includes inorganic materials.

[0026] According to any of the foregoing embodiments of the first aspect of this application, the material of the third encapsulation layer is the same as the material of the first encapsulation layer.

[0027] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes a first electrode and a second electrode, wherein the first electrode is located on the side of the light-emitting unit facing the substrate, and the second electrode is located between the light-emitting unit and the encapsulation portion;

[0028] The materials used in the isolation structure include conductive materials, and the second electrode is electrically connected to the isolation structure.

[0029] According to any of the foregoing embodiments of the first aspect of this application, the light-transmitting hole penetrates the first sub-layer.

[0030] According to any of the foregoing embodiments of the first aspect of this application, the refractive index of the first sublayer is 1.3 to 1.7; and / or, the refractive index of the second sublayer is 1.5 to 1.95.

[0031] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure includes a first isolation portion and a second isolation portion stacked in a direction away from the substrate, wherein the orthographic projection of the first isolation portion onto the substrate is located within the orthographic projection of the second isolation portion onto the substrate.

[0032] According to any of the foregoing embodiments of the first aspect of this application, the material of the first isolation portion includes a conductive material. According to any of the foregoing embodiments of the first aspect of this application, the material of the first isolation portion includes aluminum, silver, or copper.

[0033] According to any of the foregoing embodiments of the first aspect of this application, the material of the second isolation portion includes a conductive material.

[0034] According to any of the foregoing embodiments of the first aspect of this application, the material of the second isolation portion includes titanium or molybdenum.

[0035] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure further includes a third isolation portion, which is located on the side of the first isolation portion facing the substrate, and the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the third isolation portion on the substrate.

[0036] According to any of the foregoing embodiments of the first aspect of this application, the material of the third isolation portion includes a conductive material.

[0037] According to any of the foregoing embodiments of the first aspect of this application, the material of the third isolation portion includes molybdenum or titanium.

[0038] An embodiment of the first aspect of this application provides a display panel, comprising: a substrate; an isolation structure disposed on one side of the substrate and forming a plurality of isolation openings, the isolation openings being used to accommodate light-emitting units; a first encapsulation layer including an encapsulation portion for encapsulating each light-emitting unit; wherein the encapsulation portion includes a first portion and a second portion, the first portion being located within the isolation openings, the second portion being connected to the periphery of the first portion and extending to the side of the isolation structure away from the substrate, and the second portions of two adjacent encapsulation portions being spaced apart on the side of the isolation structure away from the substrate to form a first gap; and a first sublayer located on the side of the encapsulation portion away from the substrate, and the first sublayer at least covering the end of the second portion facing the first gap.

[0039] According to an embodiment of the first aspect of this application, a first sub-layer is provided with a light-transmitting hole, and the orthographic projection of the light-transmitting hole onto the substrate overlaps at least with the orthographic projection of the light-emitting unit onto the substrate; the display panel further includes a second sub-layer, the second sub-layer at least partially filling the light-transmitting hole, and the refractive index of the first sub-layer is less than the refractive index of the second sub-layer.

[0040] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the second portion onto the substrate is located within the orthographic projection of the first sublayer onto the substrate.

[0041] According to any of the foregoing embodiments of the first aspect of this application, the first sublayer includes a plurality of adjustment portions, each adjustment portion having a light-transmitting hole.

[0042] According to any of the foregoing embodiments of the first aspect of this application, a light-transmitting hole is provided through the adjustment portion.

[0043] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the second portion onto the substrate is located within the orthographic projection of the adjustment portion onto the substrate. According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the adjustment portion onto the substrate is annular.

[0044] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the first portion onto the substrate and the orthographic projection of the adjustment portion onto the substrate overlap.

[0045] According to any of the foregoing embodiments of the first aspect of this application, the refractive index of the first sublayer is 1.3 to 1.7.

[0046] According to any of the foregoing embodiments of the first aspect of this application, the refractive index of the second sublayer is 1.5 to 1.95.

[0047] According to any of the foregoing embodiments of the first aspect of this application, the second portions of two adjacent encapsulation portions are spaced apart on the side of the isolation structure away from the substrate to form a first gap, and the second sublayer fills the first gap.

[0048] According to any of the foregoing embodiments of the first aspect of this application, the first sub-layer fills the first gap.

[0049] According to any of the foregoing embodiments of the first aspect of this application, it further includes a second encapsulation layer, wherein the second encapsulation layer and the second sublayer are reused; or, the second encapsulation layer is located on the side of the second sublayer away from the substrate.

[0050] According to any of the foregoing embodiments of the first aspect of this application, the material of the second encapsulation layer includes organic materials.

[0051] According to any of the foregoing embodiments of the first aspect of this application, a third encapsulation layer is further included, located on the side of the second encapsulation layer opposite to the substrate.

[0052] According to any of the foregoing embodiments of the first aspect of this application, the material of the third encapsulation layer includes inorganic materials.

[0053] According to any of the foregoing embodiments of the first aspect of this application, the material of the first encapsulation layer includes inorganic materials.

[0054] According to any of the foregoing embodiments of the first aspect of this application, the material of the third encapsulation layer is the same as the material of the first encapsulation layer.

[0055] According to any of the foregoing embodiments of the first aspect of this application, a pixel definition layer is further included. The pixel definition layer includes a pixel defining portion and a pixel opening formed by the pixel defining portion. The pixel opening and the isolation opening are connected and used to accommodate the light-emitting unit.

[0056] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the light-transmitting hole on the substrate.

[0057] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure is located on the side of the pixel definition layer away from the substrate.

[0058] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure includes a first isolation portion and a second isolation portion stacked in a direction away from the substrate, wherein the orthographic projection of the first isolation portion onto the substrate is located within the orthographic projection of the second isolation portion onto the substrate.

[0059] According to any of the foregoing embodiments of the first aspect of this application, the material of the first isolation portion includes a conductive material.

[0060] According to any of the foregoing embodiments of the first aspect of this application, the material of the first isolation portion includes aluminum, silver, or copper.

[0061] According to any of the foregoing embodiments of the first aspect of this application, the material of the second isolation portion includes a conductive material.

[0062] According to any of the foregoing embodiments of the first aspect of this application, the material of the second isolation portion includes titanium or molybdenum.

[0063] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure further includes a third isolation portion, which is located on the side of the first isolation portion facing the substrate, and the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the third isolation portion on the substrate.

[0064] According to any of the foregoing embodiments of the first aspect of this application, the material of the third isolation portion includes a conductive material.

[0065] According to any of the foregoing embodiments of the first aspect of this application, the material of the third isolation portion includes molybdenum or titanium.

[0066] The second aspect of this application also provides a method for manufacturing a display panel, comprising:

[0067] Provide a substrate;

[0068] An isolation material layer is disposed on a substrate, and the isolation material layer is patterned to form an isolation structure, which encloses multiple isolation openings;

[0069] A light-emitting unit is prepared within an isolation opening, and an encapsulation portion and a first sub-material layer are prepared on the side of the light-emitting unit away from the substrate. The first sub-material layer is patterned to form a first sub-layer. The first sub-layer includes an adjustment portion with a light-transmitting hole, and the orthogonal projection of the light-transmitting hole onto the substrate overlaps at least with the orthogonal projection portion of the light-emitting unit onto the substrate.

[0070] A second sublayer is prepared on the side of the first sublayer away from the substrate, and the second sublayer fills the light-transmitting hole; wherein the refractive index of the first sublayer is less than the refractive index of the second sublayer.

[0071] According to an embodiment of the second aspect of this application, the plurality of isolation openings include a first isolation opening, a second isolation opening, and a third isolation opening; the light-emitting unit includes a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit; the encapsulation part includes a first encapsulation part, a second encapsulation part, and a third encapsulation part; the first sub-material layer includes a first sub-material layer, a second sub-material layer, and a third sub-material layer.

[0072] The steps of fabricating a light-emitting unit within an isolation opening and fabricating an encapsulation portion and a first sub-material layer on the side of the light-emitting unit facing away from the substrate include:

[0073] A first light-emitting material layer, a first encapsulation material layer, and an initial sub-material layer are disposed on the side of the isolation structure away from the substrate. The first light-emitting material layer, the first encapsulation material layer, and the initial sub-material layer are patterned to form a first light-emitting unit, a first encapsulation part, and a sub-material layer located at the first isolation opening.

[0074] A second light-emitting material layer, a second encapsulation material layer, and an initial sub-material layer two are provided on the side of the isolation structure away from the substrate. The second light-emitting material layer, the second encapsulation material layer, and the initial sub-material layer two are patterned to form a second light-emitting unit, a second encapsulation part, and a sub-material layer two located at the second isolation opening.

[0075] A third light-emitting material layer, a third encapsulation material layer, and an initial sub-material layer are provided on the side of the isolation structure away from the substrate. The third light-emitting material layer, the third encapsulation material layer, and the initial sub-material layer are patterned to form a third light-emitting unit, a third encapsulation part, and a sub-material layer located in the third isolation opening.

[0076] According to any of the foregoing embodiments of the second aspect of this application, the step of patterning the first sub-material layer to form an adjustment portion with light-transmitting holes includes:

[0077] Sub-material layer one, sub-material layer two, and sub-material layer three are patterned to form a first adjustment part, a second adjustment part, and a third adjustment part with light-transmitting holes.

[0078] The second aspect of this application also provides a method for manufacturing a display panel, comprising:

[0079] Provide a substrate;

[0080] An isolation material layer is disposed on a substrate, and the isolation material layer is patterned to form an isolation structure, which encloses multiple isolation openings;

[0081] A light-emitting unit is prepared within an isolation opening, and an encapsulation portion is prepared on the side of the light-emitting unit away from the substrate. The encapsulation portion includes a first portion and a second portion. The first portion is located within the isolation opening, and the second portion is connected to the periphery of the first portion and extends to the side of the isolation structure away from the substrate. The second portions of two adjacent encapsulation portions are spaced apart on the side of the isolation structure away from the substrate to form a first gap.

[0082] A protective material layer is prepared on the side of the encapsulation portion away from the substrate, and the protective material layer is patterned to form a first sub-layer, the first sub-layer at least covering the end of the second portion facing the first gap;

[0083] Preferably, the first sublayer is surrounded by a light-transmitting hole, and the orthographic projection of the light-transmitting hole onto the substrate overlaps at least with the orthographic projection of the light-emitting unit onto the substrate.

[0084] The method for manufacturing a display panel further includes preparing a second sublayer on the side of the first sublayer away from the substrate, such that the second sublayer at least partially fills the light-transmitting hole, and the refractive index of the first sublayer is less than the refractive index of the second sublayer.

[0085] The embodiments of the third aspect of this application include the display panel provided by any of the first aspect embodiments described above, or the display panel prepared by any of the second aspect embodiments described above.

[0086] In the display panel provided in this application embodiment, the display panel includes a substrate, an isolation structure, a first encapsulation layer, and an optical adjustment layer. The isolation structure encloses multiple isolation openings for accommodating light-emitting units, which can improve the problem of easy crosstalk between different light-emitting units. The encapsulation portion of the first encapsulation layer can provide encapsulation protection to the light-emitting units. An optical adjustment layer is provided on the first encapsulation layer, which includes a first sub-layer and a second sub-layer. A light-transmitting hole is provided on the first sub-layer, and the filling portion of the second sub-layer fills the light-transmitting hole. Since the orthogonal projection of the light-transmitting hole on the substrate is located within the orthogonal projection of the isolation opening on the substrate, the emitted light from the light-emitting unit will be emitted through the light-transmitting hole. When a large-angle emitted light is emitted to the contact interface between the filling portion and the first sub-layer, since the refractive index of the first sub-layer is less than that of the second sub-layer, the light will be emitted towards the center of the light-transmitting hole from the inner wall surface of the first sub-layer facing the light-transmitting hole. This can reduce the angle between the emitted light and the thickness direction, increase the amount of forward emitted light from the display panel, thereby improving the display effect of the display panel at the orthogonal viewing angle and improving the performance of the display panel. Attached Figure Description

[0087] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0088] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0089] Figure 2 One example Figure 1 Sectional view at point AA;

[0090] Figure 3 In another example Figure 1 Sectional view at point AA;

[0091] Figure 4 Is this another example? Figure 1 Sectional view at point AA;

[0092] Figure 5 In another example Figure 1 Sectional view at point AA;

[0093] Figure 6 This is a schematic diagram of the structure of a display panel provided in another embodiment of this application;

[0094] Figure 7 This is a schematic diagram of the structure of a display panel provided in another embodiment of this application;

[0095] Figure 8 This is yet another example Figure 1 Sectional view at point AA;

[0096] Figure 9 This is a schematic flowchart of a method for manufacturing a display panel provided in an embodiment of this application;

[0097] Figure 10 This is a schematic flowchart of a method for manufacturing a display panel according to another embodiment of this application;

[0098] Figures 11 to 15 This is a schematic diagram of the manufacturing process of a display panel provided in an embodiment of this application;

[0099] Figure 16 This is a schematic flowchart of a method for manufacturing a display panel according to another embodiment of this application;

[0100] Figures 17 to 22 This application also provides a schematic diagram of the manufacturing process of a display panel according to another embodiment;

[0101] Figure 23 This is a schematic flowchart of a method for manufacturing a display panel according to another embodiment of this application.

[0102] Explanation of reference numerals in the attached figures:

[0103] 100. Substrate; 110. First electrode;

[0104] 200. Isolation structure; 210. First isolation section; 220. Second isolation section; 230. Third isolation section; 240. Isolation opening; 241. First isolation opening; 242. Second isolation opening; 243. Third isolation opening;

[0105] 300, Pixel definition layer; 310, Pixel limiting part; 320, Pixel opening; 330, Light-emitting unit; 331, First light-emitting unit; 332, Second light-emitting unit; 333, Third light-emitting unit;

[0106] 401. Packaging section; 402. First section; 403. Second section; 410. First packaging section; 420. Second packaging section; 430. Third packaging section;

[0107] 500, Optical adjustment layer; 510, First sub-layer; 511, Light transmission hole; 512, Adjustment part; 512a, First adjustment part; 512b, Second adjustment part; 512c, Third adjustment part; 520, Second sub-layer; 521, Main body; 522, Extension part;

[0108] 610. Second encapsulation layer; 620. Third encapsulation layer;

[0109] 700, Second electrode;

[0110] D1, First gap; 11, First light-emitting material layer; 21, Second conductive material layer; 31, First encapsulation material layer; 41, First adjustment material layer. Detailed Implementation

[0111] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0112] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0113] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0114] Please refer to the following: Figures 1 to 2An embodiment of the first aspect of this application provides a display panel, including: a substrate 100; an isolation structure 200 disposed on the substrate 100 and forming an isolation opening 240 for accommodating light-emitting units 330; a first encapsulation layer including an encapsulation portion 401 for encapsulating each light-emitting unit 330; and an optical adjustment layer 500 disposed on the side of the encapsulation portion 401 away from the substrate 100. The optical adjustment layer 500 has a first sub-layer 510 and a second sub-layer 520 stacked in a direction away from the substrate 100. The refractive index of the first sub-layer 510 is less than that of the second sub-layer 520. The first sub-layer 510 is provided with a light-transmitting hole 511. The orthographic projection of the light-transmitting hole 511 onto the substrate 100 overlaps at least with the orthographic projection of the light-emitting unit 330 onto the substrate 100. The second sub-layer 520 includes an extension portion 522 that fills the light-transmitting hole 511.

[0115] Optionally, the second sub-layer 530 may also include a body portion 521. During the fabrication of the display panel, a material layer of the second sub-layer 520 can be integrally deposited on the first sub-layer 510 having a light-transmitting hole 511. Part of the material layer falls into the light-transmitting hole 511 to form an extension portion 522, and the remaining part forms the body portion 521. For example, part of the material layer falls on the side of the first sub-layer 510 away from the substrate 100 to form the body portion 521.

[0116] In the display panel provided in this embodiment, the display panel includes a substrate 100, an isolation structure 200, a first encapsulation layer, and an optical adjustment layer 500. The isolation structure 200 encloses and forms a plurality of isolation openings 240 for accommodating light-emitting units 330, which can improve the problem of easy crosstalk between different light-emitting units 330. The encapsulation portion 401 of the first encapsulation layer can provide encapsulation protection to the light-emitting units 330. An optical adjustment layer 500 is provided on the first encapsulation layer, which includes a first sub-layer 510 and a second sub-layer 520. A light-transmitting hole 511 is provided on the first sub-layer 510, and the extension portion 522 of the second sub-layer 520 fills the light-transmitting hole 511. Since the orthographic projection of the light-transmitting hole 511 on the substrate 100 overlaps at least with the orthographic projection portion of the isolation opening 240 of the light-emitting unit 330 on the substrate 100, the emitted light from the light-emitting unit 330 will be emitted through the light-transmitting hole 511. When a large-angle emitted light beam is emitted to the contact interface between the extension 522 and the first sub-layer 510, since the refractive index of the first sub-layer 510 is less than that of the second sub-layer 520, the light beam will be emitted towards the center of the light-transmitting hole 511 from the inner wall surface of the first sub-layer 510 towards the light-transmitting hole 511. This can reduce the angle between the emitted light beam and the thickness direction, increase the amount of light emitted from the front of the display panel, thereby improving the display effect of the display panel at the front viewing angle and improving the performance of the display panel.

[0117] Furthermore, in this embodiment, the optical adjustment layer 500 is directly disposed on the first encapsulation layer, which can reduce the distance between the optical adjustment layer 500 and the light-emitting unit 330, improve the adjustment function of the optical adjustment layer 500, and better improve the performance of the display panel.

[0118] The substrate 100 can be configured in various ways. The substrate 100 may include a substrate and a first conductive layer, a second conductive layer, and a third conductive layer stacked on one side of the substrate. An insulating layer is disposed between adjacent conductive layers. Optionally, a driving device layer is disposed on the substrate, and a pixel driving circuit is disposed within the driving device layer. The pixel driving circuit includes a transistor and a storage capacitor. The transistor includes a semiconductor, a gate, a source, and a drain. The storage capacitor includes a first electrode and a second electrode. As an example, the gate and the first electrode may be located on the first conductive layer, the second electrode may be located on the second conductive layer, and the source and drain may be located on the third conductive layer.

[0119] Optionally, the plurality of isolation openings 240 include a first isolation opening 241, a second isolation opening 242, and a third isolation opening 243. The plurality of light-emitting units 330 include a first light-emitting unit 331, a second light-emitting unit 332, and a third light-emitting unit 333. The first light-emitting unit 331 may be located in the first isolation opening 241, the second light-emitting unit 332 may be located in the second isolation opening 242, and the third light-emitting unit 333 may be located in the third isolation opening 243. The first light-emitting unit 331, the second light-emitting unit 332, and the third light-emitting unit 333 emit different colors; for example, the first light-emitting unit 331 emits red light, the second light-emitting unit 332 emits filtered light, and the third light-emitting unit 333 emits blue light, thereby achieving a color display on the display panel.

[0120] The encapsulation portion 401 may include a first encapsulation portion 410 for encapsulating the first light-emitting unit 331, a second encapsulation portion 420 for encapsulating the second light-emitting unit 332, and a third encapsulation portion 430 for encapsulating the third light-emitting unit 333. Optionally, the material of the encapsulation portion 401 may include an inorganic material, thereby giving the encapsulation portion 401 good density.

[0121] Optionally, the refractive index of the first sublayer 510 can be 1.3 to 1.7, for example, the refractive index of the first sublayer 510 can be 1.3, 1.32, 1.35, 1.40, 1.45, 1.48, 1.5, 1.55, 1.58, 1.60, 1.62, 1.67, 1.70, etc., and the refractive index of the second sublayer 520 can be 1.5 to 1.95, for example, the refractive index of the second sublayer 520 can be 1.5, 1.53, 1.58, 1.62, 1.7, 1.78, 1.80, 1.86, 1.9, 1.92, 1.95, etc., as long as the refractive index of the first sublayer 510 is less than the refractive index of the second sublayer 520.

[0122] Optionally, the body portion 521 and the extension portion 522 of the second sub-layer 520 are integrally formed to simplify the structure of the optical adjustment layer 500. For example, in the manufacturing process of the display panel, a first sub-layer 510 with a light-transmitting hole 511 can be formed first, and then a second sub-layer 520 can be formed on the entire layer of the first sub-layer 510 away from the substrate 100. Part of the material falls into the light-transmitting hole 511 to form the extension portion 522, and another part of the material falls on the first sub-layer 510 to form the body portion 521.

[0123] In some optional embodiments, the display panel further includes a pixel definition layer 300, which includes a pixel defining portion 310 and a pixel opening 320 formed in the pixel defining portion 310. The pixel opening 320 and the isolation opening 240 are connected and used to accommodate the light-emitting unit 330. Optionally, the orthographic projection of the pixel opening 320 onto the substrate 100 is located within the orthographic projection of the light-transmitting aperture 511 onto the substrate 100.

[0124] In these optional embodiments, the display panel further includes a pixel definition layer 300, with pixel openings 320 for accommodating light-emitting units 330. The orthographic projection of the pixel openings 320 onto the substrate 100 lies within the orthographic projection of the light-transmitting aperture 511 onto the substrate 100. The size of the pixel openings 320 is smaller than or equal to the size of the light-transmitting aperture 511, allowing more light emitted from the light-emitting units 330 within the pixel openings 320 to exit through the light-transmitting aperture 511, thereby enhancing the function of the optical adjustment layer 500.

[0125] Optionally, when the display panel includes a pixel definition layer 300, the isolation structure 200 can be disposed on the side of the pixel definition layer 300 facing away from the substrate 100; specifically, the isolation structure 200 can be disposed on the pixel limiting portion 310, or, the pixel limiting portion 310 has a clearance opening, and the isolation structure 200 can be located in the clearance opening. This application uses the example of the isolation structure 200 being disposed on the pixel limiting portion 310 for illustration.

[0126] Optionally, the display panel further includes a first electrode 110 and a second electrode 700. The first electrode 110 is located on the side of the light-emitting unit 330 facing the substrate 100, and the second electrode 700 is located on the side of the light-emitting unit 330 away from the substrate 100. The first electrode 110 and the second electrode 700 are used to drive the light-emitting unit 330 to emit light. The light-emitting unit 330 may include at least one of a hole injection layer, a hole transport layer, an electron blocking layer, a light-emitting material layer, a hole blocking layer, an electron transport layer, and an electron injection layer. One of the first electrode 110 and the second electrode 700 is an anode, and the other is a cathode. In this embodiment, the first electrode 110 is used as the anode and the second electrode 700 as the cathode for illustrative purposes. Optionally, the first electrode 110 is located on the side of the pixel definition layer 300 facing the substrate 100, and the first electrode 110 is exposed through the pixel opening 320, so that the first electrode 110 can contact and connect with the light-emitting unit 330 within the pixel opening 320.

[0127] In some alternative embodiments, the encapsulation portion 401 includes a first portion 402 and a second portion 403, the first portion 402 being located within the isolation opening 240, and the second portion 403 being connected to the periphery of the first portion 402 and extending to the side of the isolation structure 200 opposite to the substrate 100.

[0128] In these alternative embodiments, the first portion 402 of the encapsulation portion 401 is located within the isolation opening 240 to encapsulate the light-emitting unit 330, and the second portion 403 extends to the isolation structure 200 to expand the distribution area of ​​the encapsulation portion 401 and improve the encapsulation effect of the encapsulation portion 401.

[0129] Optionally, due to manufacturing process limitations, a light-emitting material layer, a conductive material layer, and an encapsulation material layer are typically formed on the entire surface of the isolation structure 200. The portions of the light-emitting and conductive material layers that fall into the isolation opening 240 form the light-emitting unit 330 and the second electrode 700. The portions of the light-emitting and conductive material layers that fall onto the isolation structure 200 form redundant light-emitting material and redundant electrodes. After patterning the encapsulation material layer to form the first portion 402 and the second portion 403, the redundant light-emitting material and / or redundant electrode material between the second portion 403 and the isolation structure 200 is removed, resulting in a gap between the second portion 403 and the isolation structure 200. The second portion 403 is suspended, and its position is unstable.

[0130] Optionally, the orthographic projection of the second portion 403 onto the substrate 100 at least partially overlaps with the orthographic projection of the first sublayer 510 onto the substrate 100, such that at least a portion of the second portion 403 can be covered by the first sublayer 510, thereby improving the connection stability between the second portion 403 and the isolation structure 200.

[0131] Optionally, the orthographic projection of the second portion 403 onto the substrate 100 is located within the orthographic projection of the first sublayer 510 onto the substrate 100, that is, the first sublayer 510 covers the second portion 403. The first sublayer 510 can provide protection to the second portion 403, thereby improving the problem that the second portion 403 is prone to falling off from the isolation structure 200.

[0132] Optionally, multiple second portions 403 are spaced apart on the side of the isolation structure 200 facing away from the substrate 100. In these optional embodiments, adjacent second portions 403 form a first gap D1 on the side of the isolation structure 200 facing away from the substrate 100. During the fabrication of the display panel, the first gap D1 facilitates the etching removal of impurities such as redundant light-emitting materials and redundant electrodes between the second portions 403 and the isolation structure 200.

[0133] There are several ways to set the first sub-layer 510. The first sub-layer 510 can be disconnected or continuous at the location of the first gap D1.

[0134] For example, in some alternative embodiments, such as Figures 2 to 4 As shown, the first sub-layer 510 includes a plurality of adjustment portions 512, each adjustment portion 512 having a light-transmitting hole 511. This allows the extension portion 522 to fill the light-transmitting hole 511 of each adjustment portion 512, and each adjustment portion 512 can adjust the emitted light of the light-emitting unit 330.

[0135] Optionally, the light-transmitting hole 511 is provided through the adjustment part 512, which can increase the contact interface area between the extension part 522 and the adjustment part 512 and improve the adjustment effect of the adjustment part 512 on light.

[0136] Optionally, the orthographic projection of the second portion 403 onto the substrate 100 lies within the orthographic projection of the adjustment portion 512 onto the substrate 100. The adjustment portions 512 can be spaced apart from each other at the location of the first gap D1, so that the shape of the first sublayer 510 and the shape of the second portion 403 are more adapted.

[0137] Optionally, multiple adjustment sections 512 can be spaced apart. For example, as shown... Figure 2 and Figure 3As shown, the outer edge of the adjustment portion 512 in the orthographic projection of the substrate 100 and the outer edge of the second portion 403 in the orthographic projection of the substrate 100 coincide. For example, the outer edge of the adjustment portion 512 in the orthographic projection of the substrate 100 towards the first gap D1 and the outer edge of the second portion 403 in the orthographic projection of the substrate 100 towards the first gap D1 coincide. The gap between two adjacent adjustment portions 512 and the first gap D1 can be formed in the same process step. When the first encapsulation layer is patterned to form the encapsulation portion 401, the first sublayer 510 has already covered the first encapsulation layer, which can improve the problem of the second portion 403 easily falling off during the process of patterning the first encapsulation layer to form the second portion 403.

[0138] The overlap of the outer edge of the adjustment portion 512 in the orthographic projection of the substrate 100 and the outer edge of the second portion 403 in the orthographic projection of the substrate 100 means that they overlap within the range of manufacturing process errors. In some other alternative embodiments, such as Figure 4 As shown, multiple adjustment parts 512 are spaced apart. The adjustment parts 512 can extend to the side of the second part 403 facing the first gap D1, so that the adjustment parts 512 can cover a larger area of ​​the second part 403, which can increase the contact area between the adjustment parts 512 and the second part 403 and ensure the stability of the relative position of the second part 403 and the isolation structure 200.

[0139] Optional, such as Figures 1 to 4 As shown, the light-transmitting hole 511 can penetrate through the first sub-layer 510, which can increase the contact interface area between the extension 522 and the first sub-layer 510 and improve the light adjustment effect of the first sub-layer 510.

[0140] Or, such as Figure 5 As shown, the light-transmitting hole 511 may not penetrate the first sub-layer 510.

[0141] Optional, such as Figure 6 As shown, the adjustment portion 512 is annular in its orthographic projection onto the substrate 100. The annular adjustment portion 512 encloses and forms a light-transmitting hole 511 to improve the light emission effect of the display panel.

[0142] Optionally, the orthographic projection of the first portion 402 on the substrate 100 and the orthographic projection of the adjustment portion 512 on the substrate 100 at least partially overlap, that is, part of the adjustment portion 512 extends into the isolation opening 240, so as to increase the distribution area of ​​the adjustment portion 512 and improve the protective effect of the adjustment portion 512 on the second portion 403.

[0143] Optionally, a portion of the second sublayer 520 may be filled in the first gap D1 to improve the flatness of the surface of the second sublayer 520 facing away from the substrate 100.

[0144] In some alternative embodiments, such as Figure 7 and Figure 8 As shown, the first sub-layer 510 can be in the form of a grid and include multiple through-holes 511. The first sub-layer 510 can be continuously arranged at the location of the first gap D1. Part of the first sub-layer 510 fills the first gap D1 to simplify the structure of the first sub-layer 510 and facilitate the preparation and molding of the first sub-layer 510.

[0145] Optionally, a portion of the second sublayer 520 may be filled in the first gap D1 to improve the flatness of the surface of the second sublayer 520 facing away from the substrate 100.

[0146] In some optional embodiments, the display panel further includes a second encapsulation layer 610, which is disposed on the side of the first encapsulation layer facing away from the substrate 100. In the display panel, providing at least two encapsulation layers easily improves the encapsulation effect.

[0147] Optionally, the material of the second encapsulation layer 610 includes organic materials, so that the second encapsulation layer 610 has a suitable thickness, and the flatness of the encapsulation film surface can be adjusted through the second encapsulation layer 610.

[0148] Optional, such as Figure 2 As shown, the second sub-layer 520 and the second encapsulation layer 610 can be reused. For example, the refractive index of the second encapsulation layer 610 is made greater than that of the first sub-layer 510, and a portion of the second encapsulation layer 610 extends into the light-transmitting hole 511 to form a filling portion, so that the second encapsulation layer 610 can be reused as the second sub-layer 520 of the optical adjustment layer 500.

[0149] In some other alternative embodiments, such as Figures 3 to 8 As shown, the second encapsulation layer 610 is disposed on the side of the second sub-layer 520 facing away from the substrate 100. That is, the second encapsulation layer 610 and the second sub-layer 520 are two independent layer structures, so that the second sub-layer 520 and the second encapsulation layer 610 do not interfere with each other.

[0150] Optionally, the display panel also includes a third encapsulation layer 620, which is located on the side of the second encapsulation layer 610 facing away from the substrate 100. The addition of the third encapsulation layer 620 further improves the encapsulation effect.

[0151] Optionally, the material of the third encapsulation layer 620 may include inorganic materials, so that the third encapsulation layer 620 has good density and ensures the encapsulation effect.

[0152] Optionally, when both the first encapsulation layer and the third encapsulation layer 620 are made of inorganic materials, the materials of the first encapsulation layer and the third encapsulation layer 620 can be the same to simplify the fabrication of the display panel.

[0153] In any of the above embodiments, when the display panel includes a first electrode 110 and a second electrode 700, the material of the isolation structure 200 may include a conductive material, and the second electrode 700 and the isolation structure 200 may be electrically connected to each other, so that multiple second electrodes 700 can be interconnected as surface electrodes through the isolation structure 200.

[0154] There are various ways to set the isolation structure 200. In some optional embodiments, the isolation structure 200 includes a first isolation portion 210 and a second isolation portion 220 stacked in a direction away from the substrate 100. The orthographic projection of the first isolation portion 210 onto the substrate 100 is located within the orthographic projection of the second isolation portion 220 onto the substrate 100. The material of the first isolation portion 210 includes a conductive material. The second electrode 700 is electrically connected to the first isolation portion 210.

[0155] In these optional embodiments, the first isolation portion 210 is located on the side of the second isolation portion 220 facing the substrate 100, and the orthographic projection of the first isolation portion 210 onto the substrate 100 lies within the orthographic projection of the second isolation portion 220 onto the substrate 100. This allows the size of the first isolation portion 210 to be smaller than the size of the second isolation portion 220, facilitating the formation of a recess under the second isolation portion 220. During the fabrication of the light-emitting unit 330, the light-emitting material easily breaks into independent light-emitting units 330 around the periphery of the second isolation portion 220, eliminating the need for a precision mask fabrication process and simplifying the fabrication of the display panel.

[0156] Optionally, the isolation structure 200 further includes a third isolation portion 230, which is located on the side of the first isolation portion 210 facing the substrate 100. The orthographic projection of the first isolation portion 210 onto the substrate 100 is located within the orthographic projection of the third isolation portion 230 onto the substrate 100. The material of the third isolation portion 230 includes a conductive material, and the second electrode 700 and the third isolation portion 230 are electrically connected.

[0157] In these optional embodiments, the isolation structure 200 further includes a third isolation portion 230. When the isolation structure 200 is side-etched such that the size of the first isolation portion 210 is smaller than the size of the second isolation portion 220, the third isolation portion 230 can improve the protection of the film layer on the substrate 100 side and improve the impact of the side etching of the isolation structure 200 on other film layers.

[0158] Optionally, the material of the first isolation portion 210 may include aluminum, silver or copper, so that the first isolation portion 210 has good electrical conductivity.

[0159] Optionally, the material of the second isolation section 220 may include a conductive material to improve voltage drop issues.

[0160] Optionally, the material of the second isolation portion 220 may include titanium or molybdenum, giving the second isolation portion 220 good conductivity. The second isolation portion 220 and the first isolation portion 210 are made of different materials, resulting in different etching rates and different dimensions for the second isolation portion 220 and the first isolation portion 210.

[0161] Optionally, the material of the third isolation portion 230 may include molybdenum or titanium, so that the third isolation portion 230 has good electrical conductivity.

[0162] like Figures 1 to 8 As shown, an embodiment of the first aspect of this application also provides a display panel, including: a substrate 100; an isolation structure 200 disposed on one side of the substrate 100 and forming an isolation opening 240, the isolation opening 240 being used to accommodate a light-emitting unit 330; a first encapsulation layer including an encapsulation portion 401 for encapsulating the light-emitting unit 330; wherein the encapsulation portion 401 includes a first portion 402 and a second portion 403, the first portion 402 being located within the isolation opening 240, the second portion 403 being connected to the periphery of the first portion 402 and extending to the side of the isolation structure 200 away from the substrate 100, and the second portions 403 of two adjacent encapsulation portions 401 being spaced apart on the side of the isolation structure 200 away from the substrate to form a first gap D1. A first sublayer 510 is located on the side of the encapsulation portion 401 away from the substrate 100, and the first sublayer 510 at least covers the end of the second portion 403 facing the first gap D1.

[0163] In the display panel provided in this embodiment, the display panel includes a substrate 100, an isolation structure 200, a first encapsulation layer, and an optical adjustment layer 500. The isolation structure 200 encloses an isolation opening 240, which is used to accommodate light-emitting units 330. The isolation opening 240 can be used to fabricate mutually independent light-emitting units 330. The encapsulation portion 401 is used to encapsulate the light-emitting units 330, improving the impact of water and oxygen intrusion on the yield of the light-emitting units 330.

[0164] The encapsulation portion 401 includes a first portion 402 and a second portion 403, which can improve the distribution range of the encapsulation portion 401. A first gap D1 is formed between adjacent second portions 403 to facilitate the removal of redundant light-emitting material and redundant electrodes through the first gap D1. A first sublayer 510 at least covers the end of the second portion 403 facing the first gap D1, and the first sublayer 510 can provide protection to the second portion 403, improving the problem that the second portion 403 is easily peeled off from the isolation structure 200.

[0165] Optionally, as above, the first sub-layer 510 is provided with a light-transmitting hole 511, and the orthographic projection of the light-transmitting hole 511 on the substrate 100 overlaps at least with the orthographic projection of the light-emitting unit 330 on the substrate 100; the display panel also includes a second sub-layer 520, which at least partially fills the light-transmitting hole 511, and the refractive index of the first sub-layer 510 is less than the refractive index of the second sub-layer 520.

[0166] In these optional embodiments, the first sub-layer 510 and the second sub-layer 520 are combined to form the optical adjustment layer 500 described above. The optical adjustment layer 500 is disposed on the first encapsulation layer. The optical adjustment layer 500 includes the first sub-layer 510 and the second sub-layer 520. A light-transmitting hole 511 is disposed on the first sub-layer 510. The filling portion of the second sub-layer 520 fills the light-transmitting hole 511. Since the orthographic projection of the light-transmitting hole 511 on the substrate 100 is located within the orthographic projection of the isolation opening 240 on the substrate 100, the emitted light from the light-emitting unit 330 will be emitted through the light-transmitting hole 511. When a large-angle emitted light beam is emitted to the contact interface between the filling portion and the first sub-layer 510, since the refractive index of the first sub-layer 510 is less than that of the second sub-layer 520, the light beam will be emitted towards the center of the light-transmitting hole 511 from the inner wall surface of the first sub-layer 510 towards the light-transmitting hole 511. This can reduce the angle between the emitted light beam and the thickness direction, increase the amount of light emitted from the front of the display panel, thereby improving the display effect of the display panel at the front viewing angle and improving the performance of the display panel.

[0167] The arrangement of the encapsulation section 401 and the first sub-layer 510 is as described above and will not be repeated here. The display panel of this application embodiment and the display panel of any of the above embodiments can be cross-referenced.

[0168] The second aspect of this application provides a method for manufacturing a display panel, which can be any of the display panels provided in the first aspect embodiments described above. Figures 1 to 9 As shown, the method for manufacturing the display panel includes:

[0169] Step S01: Provide a substrate 100.

[0170] Step S02: An isolation material layer is disposed on the substrate 100, and the isolation material layer is patterned to form an isolation structure 200. The isolation structure 200 encloses and forms a plurality of isolation openings 240.

[0171] Step S03: A light-emitting unit 330 is prepared within the isolation opening 240, and an encapsulation portion 401 and a first sub-material layer are prepared on the side of the light-emitting unit 330 facing away from the substrate 100. The first sub-material layer is patterned to form a first sub-layer 510. The first sub-layer 510 includes an adjustment portion 512 with a light-transmitting hole 511, and the orthogonal projection of the light-transmitting hole 511 on the substrate 100 overlaps at least with the orthogonal projection portion of the light-emitting unit 330 on the substrate 100.

[0172] Step S04: A second sublayer 520 is prepared on the side of the first sublayer 510 away from the substrate, and the second sublayer 520 fills the light-transmitting hole 511; wherein the refractive index of the first sublayer 510 is less than the refractive index of the second sublayer 520.

[0173] In the display panel prepared according to the embodiments of this application, the display panel includes a substrate 100, an isolation structure 200, a first encapsulation layer, a first sub-layer 510, and a second sub-layer 520. The isolation structure 200 encloses and forms a plurality of isolation openings 240 for accommodating light-emitting units 330, which can improve the problem of easy crosstalk between different light-emitting units 330. The encapsulation portion 401 of the first encapsulation layer can provide encapsulation protection to the light-emitting units 330. The first encapsulation layer is provided with a first sub-layer 510 and a second sub-layer 520. The first sub-layer 510 is provided with a light-transmitting hole 511. The filling portion of the second sub-layer 520 fills the light-transmitting hole 511. Since the orthographic projection of the light-transmitting hole 511 on the substrate 100 is located within the orthographic projection of the isolation opening 240 on the substrate 100, the emitted light from the light-emitting unit 330 will be emitted through the light-transmitting hole 511. When a large-angle emitted light beam is emitted onto the surface of the first sub-layer 510 facing the light-transmitting hole 511, since the refractive index of the first sub-layer 510 is less than that of the second sub-layer 520, the light beam will be emitted from the inner wall surface of the first sub-layer 510 facing the light-transmitting hole 511 toward the center of the light-transmitting hole 511. This can reduce the angle between the emitted light beam and the thickness direction, increase the amount of light emitted from the front of the display panel, thereby improving the display effect of the display panel at the front viewing angle and improving the performance of the display panel.

[0174] As described above, the isolation opening 240 may include a first isolation opening 241, a second isolation opening 242, and a third isolation opening 243. The light-emitting unit 330 may include a first light-emitting unit 331, a second light-emitting unit 332, and a third light-emitting unit 333. The encapsulation portion 401 may include a first encapsulation portion 410, a second encapsulation portion 420, and a third encapsulation portion 430. The adjustment portion 512 may include a first adjustment portion 512a, a second adjustment portion 512b, and a third adjustment portion 512c. The first sub-material layer includes sub-material layer one, sub-material layer two, and sub-material layer three. Figure 10 As shown, step S03 may include:

[0175] Step S031: As Figures 11 to 13As shown, a first light-emitting material layer 11, a first encapsulation material layer 31, and an initial sub-material layer are provided on the side of the isolation structure 200 away from the substrate 100. The first light-emitting material layer 11, the first encapsulation material layer 31, and the initial sub-material layer are patterned to form a first light-emitting unit 331, a first encapsulation part 410, and a sub-material layer located in the first isolation opening 241.

[0176] Optionally, when the display panel includes the second electrode 700, in step S031, a second conductive material layer 21 is also provided on the side of the isolation structure 200 away from the substrate 100 to form the second electrode 700 located between the first light-emitting unit 331 and the first encapsulation part 410.

[0177] Step S032: As Figure 14 As shown, a second light-emitting material layer, a second encapsulation material layer, and an initial sub-material layer are provided on the side of the isolation structure 200 away from the substrate 100. The second light-emitting material layer, the second encapsulation material layer, and the initial sub-material layer are patterned to form a second light-emitting unit 332, a second encapsulation portion 420, and a sub-material layer located in the second isolation opening 242.

[0178] Optionally, when the display panel includes the second electrode 700, in step S032, a third conductive material layer is also provided on the side of the isolation structure 200 away from the substrate 100 to form the second electrode 700 located between the second light-emitting unit 332 and the second encapsulation part 420.

[0179] Step S033: As Figure 14 As shown, a third light-emitting material layer, a third encapsulation material layer, and an initial sub-material layer are provided on the side of the isolation structure 200 away from the substrate 100. The third light-emitting material layer, the third encapsulation material layer, and the initial sub-material layer are patterned to form a third light-emitting unit 333, a third encapsulation part 430, and a sub-material layer located in the third isolation opening 243. The first encapsulation part 410, the second encapsulation part 420, and the third encapsulation part 430 form an encapsulation part 401.

[0180] Optionally, when the display panel includes the second electrode 700, in step S033, a fourth conductive material layer is also provided on the side of the isolation structure 200 away from the substrate 100 to form the second electrode 700 located between the third light-emitting unit 333 and the third encapsulation part 430.

[0181] Optionally, the step of patterning the first sub-material layer to form the adjustment portion 512 with light-transmitting holes includes:

[0182] Step S034: As Figure 15As shown, the first sub-material layer, the second sub-material layer, and the third sub-material layer are patterned to form a first adjustment portion 512a, a second adjustment portion 512b, and a third adjustment portion 512c with light-transmitting holes 511.

[0183] In this embodiment, the adjustment portion 512 of the first sublayer 510 is divided into a first adjustment portion 512a, a second adjustment portion 512b, and a third adjustment portion 512c. The first adjustment portion 512a, the second adjustment portion 512b, and the third adjustment portion 512c are respectively patterned along with the first encapsulation portion 410, the second encapsulation portion 420, and the third encapsulation portion 430 located on the side facing the substrate 100, so that the first adjustment portion 512a, the second adjustment portion 512b, and the third adjustment portion 512c can provide better protection to the first encapsulation portion 410, the second encapsulation portion 420, and the third encapsulation portion 430.

[0184] Optionally, in step S031, a first light-emitting material layer 11, a first encapsulation material layer 31, and an initial sub-material layer are integrally formed on the side of the isolation structure 200 facing away from the substrate 100. Then, the first light-emitting material layer 11, the first encapsulation material layer 31, and the initial sub-material layer are patterned, and the first light-emitting material layer 11, the first encapsulation material layer 31, and the initial sub-material layer are removed from the areas where the second isolation opening 242 and the third isolation opening 243 are located, to form a first light-emitting unit 331, a first encapsulation portion 410, and a sub-material layer. At this time, the sub-material layer covers the first encapsulation portion 410.

[0185] Optionally, in step S032, a second light-emitting material layer, a second encapsulation material layer, and an initial sub-material layer are integrally formed on the side of the isolation structure 200 facing away from the substrate 100. Then, the second light-emitting material layer, the second encapsulation material layer, and the initial sub-material layer are patterned to remove the second light-emitting material layer, the second encapsulation material layer, and the initial sub-material layer in the areas where the first isolation opening 241 and the third isolation opening 243 are located, thereby forming the second light-emitting unit 332, the second encapsulation portion 420, and the sub-material layer. At this time, the sub-material layer covers the second encapsulation portion 420.

[0186] When removing the second light-emitting material layer, the second encapsulation material layer, and the second initial sub-material layer in the area where the first isolation opening 241 and the third isolation opening 243 are located, since the encapsulation part 401 corresponding to the first isolation opening 241 is covered by the first sub-material layer, the damage to the first encapsulation part 410 during the removal of the second light-emitting material layer, the second encapsulation material layer, and the second initial sub-material layer in the area where the first isolation opening 241 is located can be reduced, thus ensuring the yield of the first encapsulation part 410.

[0187] Optionally, in step S033, a third light-emitting material layer, a third encapsulation material layer, and an initial sub-material layer are formed on the side of the isolation structure 200 facing away from the substrate 100. Then, the third light-emitting material layer, the third encapsulation material layer, and the initial sub-material layer are patterned to remove the third light-emitting material layer, the third encapsulation material layer, and the initial sub-material layer in the areas where the first isolation opening 241 and the second isolation opening 242 are located, thereby forming the third light-emitting unit 333, the third encapsulation portion 430, and the sub-material layer. At this time, the sub-material layer covers the third encapsulation portion 430.

[0188] When removing the third light-emitting material layer, the third encapsulation material layer, and the initial sub-material layer three in the areas where the first isolation opening 241 and the second isolation opening 242 are located, since the encapsulation part 401 corresponding to the first isolation opening 241 is covered by the first sub-material layer one, and the second encapsulation part 420 corresponding to the second isolation opening 242 is covered by the second sub-material layer two, the damage to the first encapsulation part 410 and the second encapsulation part 420 can be improved, and the yield of the first encapsulation part 410 and the second encapsulation part 420 can be guaranteed.

[0189] After forming sub-material layer one, sub-material layer two, and sub-material layer three, step S034 involves patterning sub-material layer one, sub-material layer two, and sub-material layer three in the same process step to form light-transmitting holes 511 located within each isolation opening 240, which simplifies the fabrication of the display panel. Finally, step S035 forms the second sub-layer 520.

[0190] In some other alternative embodiments, such as Figure 16 As shown, step S03 may further include:

[0191] Step S031': As Figures 17 to 19 As shown, a light-emitting unit 330 is prepared within a plurality of isolation openings 240, and an encapsulation portion 401 is prepared on the side of the light-emitting unit 330 facing away from the substrate 100.

[0192] In step S031', a first light-emitting unit 331 and a first encapsulation portion 410 can be fabricated in the region where the first isolation opening 241 is located. Then, a second light-emitting unit 332 and a second encapsulation portion 420 are fabricated in the region where the second isolation opening 242 is located. Finally, a third light-emitting unit 333 and a third encapsulation portion 430 are fabricated in the region where the third isolation opening 243 is located. In step S031', a second electrode 700 located on the side of each light-emitting unit 330 facing away from the substrate 100 can also be fabricated.

[0193] Step S032': As Figure 20 As shown, a first material layer is provided on the side of the isolation structure 200 and the encapsulation part 401 away from the substrate 100, and the first material layer is patterned to form a first sub-layer 510 including a light-transmitting hole 511.

[0194] Step S033': As Figure 21 and Figure 22 As shown, a second sublayer 520 is provided on the side of the first sublayer 510 away from the substrate 100. The first sublayer 510 and the second sublayer 520 are combined to form an optical adjustment layer 500. The refractive index of the second sublayer 520 is greater than that of the first sublayer 510.

[0195] In this embodiment, after each light-emitting unit 330 and each encapsulation part 401 are prepared, a first material layer is disposed on the side of the encapsulation part 401 away from the substrate 100, the first material layer is patterned to form a light-transmitting hole 511, and finally the second sub-layer 520 is prepared, which can simplify the preparation process of the optical adjustment layer 500.

[0196] In step S032', the first material layer on the isolation structure 200 may not be patterned, so that the first sub-layer 510 fills the first gap D1 between adjacent encapsulation portions 401. The first sub-layer 510 is continuously disposed on the isolation structure 200, and the first sub-layer 510 is in a grid shape and has light-transmitting holes 511. Alternatively, the first material layer may be patterned to form spaced adjustment portions 512, which cover the side of the encapsulation portion 401 facing the first gap D1.

[0197] The second aspect of this application provides a method for manufacturing a display panel, which can be any of the display panels provided in the first aspect embodiments described above. Figures 1 to 8 , Figure 23 As shown, the method for manufacturing the display panel includes:

[0198] Step S01': Provide a substrate 100.

[0199] Step S02': An isolation material layer is disposed on the substrate 100, and the isolation material layer is patterned to form an isolation structure 200. The isolation structure 200 encloses and forms a plurality of isolation openings 240.

[0200] Step S03': A light-emitting unit 330 is prepared within the isolation opening 240, and an encapsulation portion 401 is prepared on the side of the light-emitting unit 330 away from the substrate; wherein, the encapsulation portion 401 includes a first portion 402 and a second portion 403, the first portion 402 is located within the isolation opening 240, the second portion 403 is connected to the periphery of the first portion 402 and extends to the side of the isolation structure 200 away from the substrate 100, and the second portions 403 of two adjacent encapsulation portions 401 are spaced apart on the side of the isolation structure 200 away from the substrate to form a first gap D1.

[0201] Step S04': A protective material layer is prepared on the side of the encapsulation portion 401 away from the substrate 100, and the protective material layer is patterned to form a first sub-layer 510. The first sub-layer 510 at least covers the end of the second portion 403 facing the first gap D1.

[0202] In the display panel prepared according to the embodiments of this application, the display panel includes a substrate 100, an isolation structure 200, a first encapsulation layer, and a first sub-layer 510. The isolation structure 200 encloses and forms a plurality of isolation openings 240 for accommodating light-emitting units 330, which can improve the problem of easy crosstalk between different light-emitting units 330. The encapsulation portion 401 of the first encapsulation layer can provide encapsulation protection to the light-emitting units 330. The encapsulation portion 401 includes a first portion 402 and a second portion 403, which can expand the distribution area of ​​the encapsulation portion 401 and improve the encapsulation effect. The first sub-layer 510 at least covers the end of the second portion 403 facing the first gap D1, and the first sub-layer 510 can improve the stability of the relative position between the second portion 503 and the isolation structure 200.

[0203] Optionally, the first sub-layer 510 is provided with a light-transmitting hole 511, and the orthographic projection of the light-transmitting hole 511 on the substrate 100 overlaps at least with the orthographic projection of the light-emitting unit 330 on the substrate 100. This ensures that at least a portion of the light emitted by the light-emitting unit 330 is emitted through the light-transmitting hole 511.

[0204] Optionally, the method for fabricating the display panel further includes fabricating a second sub-layer 520 on the side of the first sub-layer 510 away from the substrate 100, such that the second sub-layer 520 at least partially fills the light-transmitting hole 511, and the refractive index of the first sub-layer 510 is less than the refractive index of the second sub-layer 520. The first sub-layer 510 and the second sub-layer 520 can be combined to form an optical adjustment layer 500, thereby improving the light emission effect of the display panel.

[0205] The third aspect of this application also provides a display device, including a display panel of any of the first aspect embodiments or a display panel prepared by any of the second aspect embodiments. Since the display device provided by the second aspect embodiments includes a display panel of any of the first aspect embodiments or a display panel prepared by any of the second aspect embodiments, the display device provided by the second aspect embodiments has the beneficial effects of the display panel of any of the first aspect embodiments or the display panel prepared by any of the second aspect embodiments, which will not be elaborated further here.

[0206] The display devices in this application include, but are not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0207] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This 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 the substrate and encloses a plurality of isolation openings, the isolation openings being used to accommodate light-emitting units; A pixel definition layer, the pixel definition layer including a pixel defining portion and a pixel opening formed by the pixel defining portion, the pixel opening and the isolation opening being connected and used to accommodate the light-emitting unit; The first encapsulation layer includes an encapsulation portion for encapsulating each of the light-emitting units; An optical adjustment layer is disposed on the side of the encapsulation portion away from the substrate. The optical adjustment layer comprises a first sub-layer and a second sub-layer stacked in a direction away from the substrate. The refractive index of the first sub-layer is less than that of the second sub-layer. The first sublayer is provided with a light-transmitting hole, and the orthographic projection of the light-transmitting hole on the substrate overlaps at least with the orthographic projection of the light-emitting unit on the substrate. The second sublayer includes an extension that fills the light-transmitting hole. The encapsulation portion includes a first portion and a second portion. The first portion is located within the isolation opening, and the second portion is connected to the periphery of the first portion and extends to the side of the isolation structure away from the substrate.

2. The display panel according to claim 1, characterized in that, The pixel opening is located within the orthographic projection of the light-transmitting hole on the substrate.

3. The display panel according to claim 1, characterized in that, The isolation structure is located on the side of the pixel definition layer opposite to the substrate.

4. The display panel according to claim 1, characterized in that, The orthographic projection of the second portion onto the substrate at least partially overlaps with the orthographic projection of the first sublayer onto the substrate.

5. The display panel according to claim 1, characterized in that, The second portion is projected onto the substrate in a projection that lies within the first sublayer in a projection that lies onto the substrate.

6. The display panel according to claim 1, characterized in that, The first sub-layer includes a plurality of adjustment sections, each of which has the light-transmitting hole.

7. The display panel according to claim 6, characterized in that, The light-transmitting hole is provided through the adjustment part.

8. The display panel according to claim 6, characterized in that, The second portion is projected onto the substrate in a direction that the adjustment ...

9. The display panel according to claim 6, characterized in that, The second portions of two adjacent encapsulation portions are spaced apart to form a first gap on the side of the isolation structure away from the substrate, and the two adjacent adjustment portions are spaced apart.

10. The display panel according to claim 9, characterized in that, The adjustment portion coincides with the outer edge of the orthographic projection of the substrate and the second portion coincides with the outer edge of the orthographic projection of the substrate, or the adjustment portion extends to the first gap and covers the side of the second portion facing the first gap.

11. The display panel according to claim 6, characterized in that, The orthographic projection of the adjustment part on the substrate is ring-shaped.

12. The display panel according to claim 6, characterized in that, The first portion overlaps with the orthographic projection of the substrate and the adjustment portion overlaps with the orthographic projection of the substrate.

13. The display panel according to claim 1, characterized in that, The second portions of two adjacent encapsulation portions are spaced apart on the side of the isolation structure away from the substrate to form a first gap, and the second sub-layer fills the first gap.

14. The display panel according to claim 13, characterized in that, The first sublayer fills the first gap.

15. The display panel according to claim 1, characterized in that, It also includes a second encapsulation layer, which is reused with the second sublayer; or, the second encapsulation layer is located on the side of the second sublayer facing away from the substrate.

16. The display panel according to claim 1, characterized in that, The display panel further includes a first electrode and a second electrode, wherein the first electrode is located on the side of the light-emitting unit facing the substrate, and the second electrode is located between the light-emitting unit and the encapsulation portion; The isolation structure is made of a conductive material, and the second electrode is electrically connected to the isolation structure.

17. The display panel according to claim 1, characterized in that, The light-transmitting hole penetrates the first sub-layer.

18. The display panel according to claim 1, characterized in that, The refractive index of the first sublayer is 1.3~1.7; And / or, the refractive index of the second sublayer is 1.5 to 1.

95.

19. The display panel according to claim 1, characterized in that, The isolation structure includes a first isolation portion and a second isolation portion stacked in a direction away from the substrate, wherein the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the second isolation portion on the substrate.

20. The display panel according to claim 19, characterized in that, The material of the first isolation portion includes a conductive material; And / or, the material of the first isolation portion includes aluminum, silver, or copper.

21. The display panel according to claim 19, characterized in that, The material of the second isolation section includes a conductive material.

22. The display panel according to claim 19, characterized in that, The material of the second isolation section includes titanium or molybdenum.

23. The display panel according to claim 19, characterized in that, The isolation structure further includes a third isolation portion located on the side of the first isolation portion facing the substrate, wherein the orthographic projection of the first isolation portion onto the substrate is within the orthographic projection of the third isolation portion onto the substrate.

24. The display panel according to claim 23, characterized in that, The material of the third isolation section includes a conductive material.

25. The display panel according to claim 23, characterized in that, The material of the third isolation section includes molybdenum or titanium.

26. A display panel, characterized in that, include: substrate; An isolation structure is disposed on one side of the substrate and encloses a plurality of isolation openings, the isolation openings being used to accommodate light-emitting units; The first encapsulation layer includes an encapsulation portion for encapsulating each of the light-emitting units; wherein the encapsulation portion includes a first portion and a second portion, the first portion is located within the isolation opening, the second portion is connected to the periphery of the first portion and extends to the side of the isolation structure away from the substrate, and the second portions of two adjacent encapsulation portions are spaced apart to form a first gap on the side of the isolation structure away from the substrate. The first sublayer is located on the side of the encapsulation portion away from the substrate, and the first sublayer at least covers the end of the second portion facing the first gap; The first sub-layer is provided with a light-transmitting hole, and the orthographic projection of the light-transmitting hole on the substrate overlaps at least with the orthographic projection of the light-emitting unit on the substrate; the display panel further includes a second sub-layer, the second sub-layer at least partially filling the light-transmitting hole, and the refractive index of the first sub-layer is less than the refractive index of the second sub-layer; The first sub-layer includes multiple adjustment sections, each of which has a light-transmitting hole.

27. The display panel according to claim 26, characterized in that, The light-transmitting hole is provided through the adjustment part.

28. The display panel according to claim 26, characterized in that, The second portion is projected onto the substrate in a direction that the adjustment ...

29. The display panel according to claim 26, characterized in that, The orthographic projection of the adjustment part on the substrate is ring-shaped.

30. The display panel according to claim 26, characterized in that, The first portion overlaps with the orthographic projection of the substrate and the adjustment portion overlaps with the orthographic projection of the substrate.

31. The display panel according to claim 26, characterized in that, The refractive index of the first sublayer is 1.3 to 1.

7.

32. The display panel according to claim 31, characterized in that, The refractive index of the second sublayer is 1.5 to 1.

95.

33. The display panel according to claim 31, characterized in that, The second portions of two adjacent encapsulation portions are spaced apart on the side of the isolation structure away from the substrate to form a first gap, and the second sub-layer also fills the first gap.

34. The display panel according to claim 31, characterized in that, The first sublayer fills the first gap.

35. The display panel according to claim 26, characterized in that, It also includes a second encapsulation layer, which is reused with the second sublayer; or, the second encapsulation layer is located on the side of the second sublayer facing away from the substrate.

36. The display panel according to claim 26, characterized in that, It also includes a pixel definition layer, which includes a pixel defining portion and a pixel opening formed by the pixel defining portion. The pixel opening and the isolation opening are connected and used to accommodate the light-emitting unit.

37. The display panel according to claim 36, characterized in that, The pixel opening is located within the orthographic projection of the light-transmitting hole on the substrate.

38. The display panel according to claim 36, characterized in that, The isolation structure is located on the side of the pixel definition layer opposite to the substrate.

39. The display panel according to claim 36, characterized in that, The isolation structure includes a first isolation portion and a second isolation portion stacked in a direction away from the substrate, wherein the orthographic projection of the first isolation portion on the substrate is located within the orthographic projection of the second isolation portion on the substrate.

40. The display panel according to claim 39, characterized in that, The material of the first isolation portion includes a conductive material.

41. The display panel according to claim 39, characterized in that, The material of the first isolation section includes aluminum, silver, or copper.

42. The display panel according to claim 39, characterized in that, The material of the second isolation section includes a conductive material.

43. The display panel according to claim 39, characterized in that, The material of the second isolation section includes titanium or molybdenum.

44. The display panel according to claim 39, characterized in that, The isolation structure further includes a third isolation portion located on the side of the first isolation portion facing the substrate, wherein the orthographic projection of the first isolation portion onto the substrate is within the orthographic projection of the third isolation portion onto the substrate.

45. The display panel according to claim 44, characterized in that, The material of the third isolation section includes a conductive material.

46. ​​The display panel according to claim 44, characterized in that, The material of the third isolation section includes molybdenum or titanium.

47. The display panel according to claim 26, characterized in that, The second portion is projected onto the substrate in a projection that lies within the first sublayer in a projection that lies onto the substrate.

48. A method for preparing the display panel according to claim 1, characterized in that, include: Provide a substrate; An isolation material layer is disposed on the substrate, and the isolation material layer is patterned to form an isolation structure, the isolation structure enclosing and forming multiple isolation openings; A light-emitting unit is prepared within the isolation opening, and an encapsulation portion and a first sub-material layer are prepared on the side of the light-emitting unit away from the substrate. The first sub-material layer is patterned to form a first sub-layer. The first sub-layer includes an adjustment portion with a light-transmitting hole, and the orthogonal projection of the light-transmitting hole on the substrate overlaps at least with the orthogonal projection portion of the light-emitting unit on the substrate. A second sublayer is prepared on the side of the first sublayer away from the substrate, and the second sublayer fills the light-transmitting hole; wherein the refractive index of the first sublayer is less than the refractive index of the second sublayer.

49. The preparation method according to claim 48, characterized in that, The plurality of isolation openings include a first isolation opening, a second isolation opening, and a third isolation opening; the light-emitting unit includes a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit; the encapsulation part includes a first encapsulation part, a second encapsulation part, and a third encapsulation part; the first sub-material layer includes sub-material layer one, sub-material layer two, and sub-material layer three; The steps of fabricating a light-emitting unit within the isolation opening and fabricating an encapsulation portion and a first sub-material layer on the side of the light-emitting unit facing away from the substrate include: A first light-emitting material layer, a first encapsulation material layer, and an initial sub-material layer are disposed on the side of the isolation structure away from the substrate. The first light-emitting material layer, the first encapsulation material layer, and the initial sub-material layer are patterned to form a first light-emitting unit, a first encapsulation part, and a sub-material layer located at the first isolation opening. A second light-emitting material layer, a second encapsulation material layer, and an initial sub-material layer are disposed on the side of the isolation structure away from the substrate. The second light-emitting material layer, the second encapsulation material layer, and the initial sub-material layer are patterned to form a second light-emitting unit, a second encapsulation part, and a second sub-material layer located at the second isolation opening. A third light-emitting material layer, a third encapsulation material layer, and an initial sub-material layer are disposed on the side of the isolation structure away from the substrate. The third light-emitting material layer, the third encapsulation material layer, and the initial sub-material layer are patterned to form a third light-emitting unit, a third encapsulation part, and a sub-material layer located in the third isolation opening.

50. The preparation method according to claim 49, characterized in that, The step of patterning the first sub-material layer to form an adjustment portion with light-transmitting holes includes: The first sub-material layer, the second sub-material layer, and the third sub-material layer are patterned to form a first adjustment portion, a second adjustment portion, and a third adjustment portion having the light-transmitting holes.

51. A method for preparing a display panel as described in claim 26, characterized in that, include: Provide a substrate; An isolation material layer is disposed on a substrate, and the isolation material layer is patterned to form an isolation structure, wherein the isolation structure encloses and forms multiple isolation openings; A light-emitting unit is prepared within the isolation opening, and an encapsulation portion is prepared on the side of the light-emitting unit facing away from the substrate; wherein the encapsulation portion includes a first portion and a second portion, the first portion is located within the isolation opening, the second portion is connected to the periphery of the first portion and extends to the side of the isolation structure facing away from the substrate, and the second portions of two adjacent encapsulation portions are spaced apart to form a first gap on the side of the isolation structure facing away from the substrate. A protective material layer is prepared on the side of the encapsulation portion away from the substrate, and the protective material layer is patterned to form a first sub-layer, the first sub-layer at least covering the end of the second portion facing the first gap.

52. The preparation method according to claim 51, characterized in that, The first sub-layer is provided with a light-transmitting hole, and the orthographic projection of the light-transmitting hole on the substrate overlaps at least with the orthographic projection portion of the light-emitting unit on the substrate; The method for preparing the display panel further includes preparing a second sub-layer on the side of the first sub-layer away from the substrate, such that the second sub-layer at least partially fills the light-transmitting hole, and the refractive index of the first sub-layer is less than the refractive index of the second sub-layer.

53. A display device, characterized in that, Includes the display panel according to any one of claims 1-47, or the display panel prepared by the preparation method according to any one of claims 48-52.

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