Display panel and display device

Abstract

The invention provides a display panel and a display device, relates to the technical field of display, and can improve the positive visual angle light emitting efficiency of the display panel. The display panel comprises a pixel defining layer located on one side of a substrate and provided with a plurality of pixel openings; the anode layer and the pixel defining layer are located on the same side of the substrate, the anode layer comprises a plurality of anode structures arranged at intervals, and the orthographic projection of the anode structures towards the substrate and the orthographic projection of the pixel openings towards the substrate are overlapped; the light-emitting layer is located on the side, away from the substrate, of the anode layer and comprises a plurality of light-emitting elements arranged in an array mode, and the light-emitting elements are located in the pixel openings; the packaging layer is located on the side, away from the substrate, of the light-emitting layer; the lens layer is located on the side, away from the substrate, of the packaging layer, and the lens layer comprises a plurality of lens structures arranged at intervals; wherein the orthographic projection, facing the substrate, of at least one of the light-emitting element, the anode structure and the lens structure is in the shape of a ring or a split ring, and the orthographic projections, facing the substrate, of the light-emitting element, the anode structure and the lens structure are at least partially overlapped.

Description

Technical Field

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

[0002] With the development and progress of display technology, the requirements for the display effect of display panels are gradually increased.

[0003] In a conventional display panel, a light converging device is usually provided on the light emitting side of the light emitting element to converge the light emitted from the light emitting element at a large viewing angle, thereby improving the light emitting efficiency of the display panel at a normal viewing angle. However, the light converging device will also produce a certain deflection effect on the light emitted from the light emitting element at a small viewing angle, causing loss of the normal viewing angle light of the light emitting unit, resulting in a small ratio of the normal viewing angle light output of the display panel to the light emitting area of ​​the display panel, thereby causing a low normal viewing angle light emitting efficiency of the display panel, a low normal viewing angle brightness of the display panel, and affecting the display effect of the display image and the display quality of the display panel. Summary of the invention

[0004] Based on this, the embodiments of the present application provide a display panel and a display device, which can improve the light output efficiency of the display panel at a normal viewing angle, improve the brightness of the display panel at a normal viewing angle, and improve the display effect of the display panel and the display quality of the display panel.

[0005] According to a first aspect of an embodiment of the present application, a display panel is provided, comprising:

[0006] substrate;

[0007] A pixel defining layer, located on one side of the substrate, the pixel defining layer having a plurality of pixel openings;

[0008] an anode layer, the anode layer and the pixel defining layer being located on the same side of the substrate, the anode layer comprising a plurality of anode structures arranged at intervals, the orthographic projection of the anode structure toward the substrate overlapping the orthographic projection of the pixel opening toward the substrate;

[0009] A light-emitting layer, located on a side of the anode layer away from the substrate, the light-emitting layer comprising a plurality of light-emitting elements arranged in an array, and the light-emitting elements are located in the pixel opening;

[0010] An encapsulation layer, located on a side of the light-emitting layer away from the substrate;

[0011] A lens layer, located on a side of the packaging layer away from the substrate, the lens layer comprising a plurality of lens structures arranged at intervals;

[0012] The orthographic projection of at least one of the light emitting element, the anode structure and the lens structure toward the substrate is in the shape of a ring or an open ring, and the orthographic projections of the light emitting element, the anode structure and the lens structure toward the substrate at least partially overlap.

[0013] In some embodiments, the pixel opening includes a light-emitting area and a non-light-emitting area, the light-emitting area is in a ring shape, and the light-emitting area is arranged around the non-light-emitting area;

[0014] wherein the orthographic projection of the light emitting element toward the substrate coincides with the orthographic projection of the light emitting area toward the substrate;

[0015] Optionally, an orthographic projection of the anode structure toward the substrate coincides with an orthographic projection of the light-emitting region toward the substrate.

[0016] In some embodiments, the display panel further includes:

[0017] A light shielding structure is located in the non-light emitting area of ​​the pixel opening, the light shielding structure and the light emitting element are located in the pixel opening, and the light emitting element is arranged around the light shielding structure;

[0018] Optionally, an orthographic projection of the light-shielding structure toward the substrate coincides with an orthographic projection of the non-luminous area toward the substrate;

[0019] wherein the orthographic projection of the light emitting element toward the substrate falls within the orthographic projection of the anode structure toward the substrate;

[0020] Optionally, an orthographic projection of the anode structure toward the substrate does not overlap with an orthographic projection of the light shielding structure toward the substrate;

[0021] Optionally, the shading structure and the pixel defining layer are prepared simultaneously.

[0022] In some embodiments, an orthographic projection of the lens structure toward the substrate and an orthographic projection of the non-light emitting area toward the substrate at least partially do not overlap.

[0023] In some embodiments, an orthographic projection of the light emitting area toward the substrate falls within an orthographic projection of the lens structure toward the substrate.

[0024] In some embodiments, the ratio of the area of ​​the light-emitting region to the area of ​​the non-light-emitting region ranges from 1 to 3;

[0025] Optionally, a ratio of an area of ​​an orthographic projection of the lens structure toward the substrate to an area of ​​the light emitting region ranges from 1.4 to 2.

[0026] In some embodiments, the lens structure includes a plurality of sub-lens structures disposed at intervals, and each of the sub-lens structures is arranged in a ring shape.

[0027] In some embodiments, the display panel further includes:

[0028] The first refractive layer is located in the gap between the adjacent lens structures and on a side of the lens layer away from the substrate, and the refractive index of the lens layer is greater than the refractive index of the first refractive layer.

[0029] In some embodiments, the encapsulation layer includes a first encapsulation layer, a second encapsulation layer, and a third encapsulation layer stacked in sequence along the thickness direction of the substrate, wherein the first encapsulation layer is located between the light-emitting layer and the second encapsulation layer;

[0030] The display panel further includes:

[0031] A second refractive layer is located between the first encapsulation layer and the second encapsulation layer, and the refractive indexes of the first encapsulation layer, the second encapsulation layer and the third encapsulation layer are all smaller than the refractive index of the second refractive layer;

[0032] Optionally, the refractive index of the encapsulation layer is smaller than the refractive index of the lens layer.

[0033] According to a second aspect of an embodiment of the present application, a display device is provided, including:

[0034] A display panel as described in any one of the first aspects above.

[0035] The embodiments of the present application provide a display panel and a display device. By determining the shape of the orthographic projection of at least one of the anode structure and the lens structure of the light-emitting element toward the substrate as a ring or an open ring, and making the orthographic projections of the light-emitting element, the anode structure and the lens structure toward the substrate at least partially overlap, a ring-shaped light-emitting area can be formed in a pixel opening, reducing the light-emitting area in the pixel opening, and further making the light emitted in the light-emitting area emit through the lens structure to achieve light convergence and increase the orthographic light emission in the pixel opening, thereby improving the ratio of the orthographic light emission in the pixel unit to the light emission area in the pixel opening, and further improving the orthographic light emission efficiency of the pixel unit, improving the orthographic brightness of the display panel, and improving the display effect of the display picture and the display quality of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0037] FIG1 is a schematic structural diagram of a display panel provided in an embodiment of the present application;

[0038] FIG2 is a schematic structural diagram of another display panel provided in an embodiment of the present application;

[0039] FIG3 is a schematic structural diagram of another display panel provided in an embodiment of the present application;

[0040] FIG4 is a schematic structural diagram of another display panel provided in an embodiment of the present application;

[0041] FIG5 is a schematic top view of a display panel provided in an embodiment of the present application;

[0042] FIG6 is a schematic top view of another display panel provided in an embodiment of the present application;

[0043] FIG7 is a schematic structural diagram of a display panel provided in an embodiment of the present application;

[0044] FIG8 is a schematic top view of another display panel provided in an embodiment of the present application;

[0045] FIG. 9 is a schematic structural diagram of a display device provided in an embodiment of the present application.

[0046] Description of reference numerals:

[0047] 100-substrate, 200-pixel defining layer, 300-anode structure, 400-light-emitting element, 500-packaging layer, 510-first packaging layer, 520-second packaging layer, 530-third packaging layer, 600-lens structure, 700-shading structure, 800-first refractive layer, 900-second refractive layer, L1-first light, L2-second light, L3-third light. DETAILED DESCRIPTION

[0048] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are provided in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0049] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0050] In this document, spatially related terms such as "upper" and "lower" are defined with reference to the accompanying drawings. Therefore, it will be understood that "upper" and "lower" are used interchangeably. It will be understood that when a layer is referred to as being "on" another layer, it can be directly formed on the other layer, or intervening layers may also be present. Therefore, it will be understood that when a layer is referred to as being "directly on" another layer, there are no intervening layers interposed therebetween.

[0051] In the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity. It is understood that when a layer or element is referred to as being "on" another layer or substrate, the layer or element may be directly on the other layer or substrate, or there may be intervening layers. In addition, it is also understood that when a layer is referred to as being "between" two layers, the layer may be the only layer between the two layers, or there may be one or more intervening layers. In addition, the same reference numerals always represent the same elements.

[0052] Hereinafter, although terms such as "first", "second", etc. may be used to describe various components, these components are not necessarily limited to the above terms. The above terms are only used to distinguish one component from another component. It will also be understood that expressions used in the singular form include plural expressions, unless the expression in the singular form has a significantly different meaning in the context. In addition, in the following embodiments, it will also be understood that the terms "comprising" and / or "having" used herein illustrate the presence of the stated features or components, but do not exclude the presence or addition of one or more other features or components.

[0053] In the following embodiments, when a layer, region, or element is "connected", it can be interpreted that the layer, region, or element is not only directly connected but also connected through other constituent elements placed therebetween. For example, when a layer, region, element, etc. is described as being connected or electrically connected, the layer, region, element, etc. can be connected or electrically connected not only directly or directly, but also through another layer, region, element, etc. placed therebetween.

[0054] As used in the application documents, the term "and / or" includes any and all combinations of one or more of the related listed items. When a statement such as "at least one (one) of..." is placed after a list of elements (elements), it modifies the entire list of elements (elements), rather than modifying the individual elements (elements) in the list (elements).

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention pertains. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0056] It should also be understood that the terms “include / comprises” or “having” and the like specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0057] Electronic or electrical devices and / or any other related devices or components according to the embodiments of the inventive concepts described herein (e.g., a display device including a display panel and a display panel driver, wherein the display panel driver also includes a drive controller, a gate driver, a gamma reference voltage generator, a data driver, and an emission driver) can be implemented using any appropriate hardware, firmware (e.g., a dedicated integrated circuit), software, or a combination of software, firmware, and hardware. For example, the various components of these devices may be formed on an integrated circuit (IC) chip or on separate IC chips. In addition, the various components of these devices may be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or formed on a substrate. In addition, the various components of these devices may be processes or threads that run on one or more processors in one or more computing devices to execute computer program instructions and interact with other system components to perform the various functions described herein. The computer program instructions are stored in a memory that can be implemented in a computing device using standard storage devices (e.g., such as random access memory (RAM). The computer program instructions can also be stored in other non-transitory computer-readable media (e.g., such as CD-ROMs, flash drives, etc.). Moreover, those skilled in the art should recognize that the functions of various computing devices can be combined or integrated into a single computing device, or the functions of a particular computing device can be distributed on one or more other computing devices without departing from the spirit and scope of the exemplary embodiments of the inventive concept.

[0058] Although exemplary embodiments of display modules and display devices including display modules have been specifically described herein, many modifications and variations will be apparent to those skilled in the art. Therefore, it will be understood that display modules and display devices including display modules constructed in accordance with the principles of the present invention may be implemented in addition to those specifically described herein. The present application is also defined in the claims and their equivalents.

[0059] It should be noted that in conventional display panels, a convex lens with a high refractive index is usually provided on the light-emitting side of the light-emitting element to converge the light emitted from the light-emitting element at a large viewing angle, thereby improving the light-emitting efficiency of the display panel at a normal viewing angle. However, in conventional display panels, the orthographic projection of the convex lens toward the substrate usually covers the pixel opening, and the orthographic projection of the light-emitting element toward the substrate coincides with the orthographic projection edge of the pixel opening toward the substrate. As the orthographic projection area of ​​the convex lens toward the substrate increases, the curvature of the surface of the convex lens away from the substrate side becomes smaller, and the curvature of the central area of ​​the convex lens is approximately close to the horizontal surface, so that the light emitted through the central area of ​​the convex lens will be deflected in a direction away from the normal, so the viewing angle of the small viewing angle light emitted from the central area of ​​the light-emitting element will increase after passing through the convex lens, resulting in a loss of the normal viewing angle light output of the light-emitting unit. Therefore, when the light output area of ​​the light-emitting unit is constant, the high-refractive lens has limited effect on improving the front-angle light output of the light-emitting unit, which will result in a smaller ratio of the front-angle light output of the display panel to the light-emitting area of ​​the display panel, thereby causing the front-angle light output efficiency of the display panel to be low, affecting the display effect of the display picture and the display quality of the display panel.

[0060] As shown in FIG. 1 , a first aspect of an embodiment of the present application provides a display panel, including: a substrate 100 , a pixel defining layer 200 , an anode layer, a light emitting layer, an encapsulation layer 500 and a lens layer. Among them, the pixel defining layer 200 is located on one side of the substrate 100, and the pixel defining layer 200 has a plurality of pixel openings; the anode layer and the pixel defining layer 200 are located on the same side of the substrate 100, and the anode layer includes a plurality of anode structures 300 arranged at intervals, and the orthographic projection of the anode structure 300 toward the substrate 100 overlaps with the orthographic projection of the pixel opening toward the substrate 100; the light-emitting layer is located on the side of the anode layer away from the substrate 100, and the light-emitting layer includes a plurality of light-emitting elements 400 arranged in an array, and the light-emitting element 400 is located in the pixel opening; the encapsulation layer 500 is located on the side of the light-emitting layer away from the substrate 100; the lens layer is located on the side of the encapsulation layer 500 away from the substrate 100, and the lens layer includes a plurality of lens structures 600 arranged at intervals; the orthographic projection of at least one of the light-emitting element 400, the anode structure 300 and the lens structure 600 toward the substrate 100 is in the shape of a ring or an open ring, and the orthographic projections of the light-emitting element 400, the anode structure 300 and the lens structure 600 toward the substrate 100 at least partially overlap.

[0061] Exemplarily, the light path of the first light L1 in the display panel is shown in FIG. 1 .

[0062] It should be noted that, when the surface of the lens structure 600 away from the substrate 100 is a convex surface, the surface curvature of the lens structure 600 corresponding to the central area of ​​the pixel opening is smaller, and the refraction of light by the lens structure 600 will cause the light emitted from the central area of ​​the light-emitting element 400 to deviate from the normal, causing the light emitted from the central area of ​​the light-emitting element 400 at a small viewing angle to be emitted at a large viewing angle after passing through the lens structure 600, thereby affecting the amount of light emitted at a positive viewing angle of the pixel unit.

[0063] As shown in FIG. 2 , in a feasible implementation, the orthographic projection of the lens structure 600 toward the substrate 100 covers the orthographic projection of the pixel opening toward the substrate 100, and the orthographic projection of the light-emitting element 400 toward the substrate 100 is in the shape of a ring. By setting the central area of ​​the pixel opening not to emit light, the light-emitting area of ​​the pixel opening can be reduced, and at the same time, the light-emitting angle of the light emitted from the central area of ​​the light-emitting element 400 after refraction can be prevented from increasing, which affects the light-emitting amount of the pixel unit at the front viewing angle, thereby improving the light-emitting efficiency of the pixel unit at the front viewing angle and improving the brightness of the display panel at the front viewing angle.

[0064] As shown in FIG3 , in a feasible implementation, the orthographic projection of the lens structure 600 toward the substrate 100 covers the orthographic projection of the pixel opening toward the substrate 100, and the orthographic projection of the anode structure 300 toward the substrate 100 is in the shape of a ring. By providing the ring-shaped anode structure 300, the light emitting element 400 in contact with the ring-shaped anode can emit light in a ring shape, which can reduce the light emitting area of ​​the pixel opening, and at the same time, it can be avoided that the light emitted from the central area of ​​the light emitting element 400 increases the light emitting angle after refraction, which affects the light emitting amount of the pixel unit at the front viewing angle, thereby improving the light emitting efficiency of the pixel unit at the front viewing angle and improving the brightness of the display panel at the front viewing angle.

[0065] As shown in FIG4 , in a feasible implementation, the shape of the orthographic projection of the lens structure 600 toward the substrate 100 is annular, and the orthographic projections of the anode structure 300 and the light-emitting element 400 toward the substrate 100 cover the orthographic projection of the pixel opening toward the substrate 100. Among them, the optical path of the second light L2 emitted from the central area of ​​the light-emitting element 400 in the display panel is shown in FIG2 . By setting the annular lens structure 600, the light emitted from the central area of ​​the light-emitting element 400 can be prevented from passing through the lens structure 600, which can avoid the deflection of the light and keep the original optical path, thereby increasing the front-view light output of the pixel unit, improving the front-view light output efficiency of the pixel unit, and improving the front-view brightness of the display panel.

[0066] The display panel provided in the embodiment of the present application can form a ring-shaped light-emitting area A1 in a pixel opening by determining the shape of the positive projection of at least one of the anode structure 300 of the light-emitting element 400 and the lens structure 600 toward the substrate 100 as a ring or an open ring, and making the positive projections of the light-emitting element 400, the anode structure 300 and the lens structure 600 toward the substrate 100 at least partially overlap, thereby reducing the light emission area in the pixel opening, and further making the light emitted in the light-emitting area A1 to be emitted through the lens structure 600 to achieve light convergence and increase the positive viewing angle light emission in the pixel opening, thereby improving the ratio of the positive viewing angle light emission in the pixel unit to the light emission area in the pixel opening, and further improving the positive viewing angle light emission efficiency of the pixel unit, improving the positive viewing angle brightness of the display panel, and improving the display effect of the display picture and the display quality of the display device.

[0067] As shown in Figure 5, in some feasible embodiments, the pixel opening includes a light-emitting area A1 and a non-light-emitting area A2, the light-emitting area A1 is in the shape of a ring, and the light-emitting area A1 is arranged around the non-light-emitting area A2; wherein the orthographic projection of the light-emitting element 400 toward the substrate 100 coincides with the orthographic projection of the light-emitting area A1 toward the substrate 100.

[0068] The display panel provided in the embodiment of the present application can reduce the light-emitting area of ​​the pixel opening by setting a ring-shaped light-emitting element 400, and at the same time can avoid the increase of the light-emitting angle of the light emitted from the central area of ​​the light-emitting element 400 after refraction, which affects the front-view light emission amount of the pixel unit, thereby improving the front-view light emission efficiency of the pixel unit, improving the front-view brightness of the display panel, and improving the display effect of the display picture and the display quality of the display device.

[0069] In some feasible implementations, the orthographic projection of the anode structure 300 toward the substrate 100 coincides with the orthographic projection of the light emitting area A1 toward the substrate 100 .

[0070] The display panel provided in the embodiment of the present application, by setting an annular anode structure 300, can make the light-emitting element 400 in contact with the annular anode emit light in a ring shape, which can reduce the light-emitting area of ​​the pixel opening, and at the same time avoid the increase of the light-emitting angle after refraction of the light emitted from the central area of ​​the light-emitting element 400, which affects the front-view light emission of the pixel unit, thereby improving the front-view light emission efficiency of the pixel unit, improving the front-view brightness of the display panel, and improving the display effect of the display picture and the display quality of the display device.

[0071] In some feasible implementations, the orthographic projection of the anode structure 300 toward the substrate 100 coincides with the orthographic projection of the light emitting area A1 toward the substrate 100 .

[0072] As shown in FIG. 6 , the orthographic projection A3 of the anode structure 300 toward the substrate 100 covers the orthographic projection of the light emitting area A1 toward the substrate 100 .

[0073] The display panel provided in the embodiment of the present application can prevent the light emitted from the central area of ​​the light-emitting element 400 from passing through the lens structure 600 by setting an annular lens structure 600, thereby avoiding the deflection of the light and maintaining the original light path, thereby increasing the front-view light output of the pixel unit, improving the front-view light output efficiency of the pixel unit, improving the front-view brightness of the display panel, and improving the display effect of the display picture and the display quality of the display device.

[0074] As shown in FIG7 , in some feasible implementations, the display panel further includes: a light shielding structure 700, which is located in the non-luminous area A2 of the pixel opening, the light shielding structure 700 and the light emitting element 400 are located in the pixel opening, and the light emitting element 400 is arranged around the light shielding structure 700. The orthographic projection of the anode structure 300 toward the substrate 100 covers the orthographic projection edge of the pixel opening toward the substrate 100, and the orthographic projection edge of the light emitting element 400 toward the substrate 100 coincides with the orthographic projection edge of the light emitting area A1 toward the substrate 100.

[0075] Illustratively, in the preparation process of the display panel, an anode structure 300 having a closed shape can be first formed, a pixel defining layer 200 is formed on the side of the anode structure 300 away from the substrate 100, a shading structure 700 is formed on the side of the anode structure 300 away from the substrate 100, the shading structure 700 is located in the non-luminous area A2, and a light-emitting element 400 is formed on the side of the anode structure 300 away from the substrate 100.

[0076] The display panel provided in the embodiment of the present application can reduce the difficulty of preparing the annular light-emitting element 400 through the shading structure 700, and can block the light emitted from the edge area of ​​the light-emitting element 400, thereby preventing the wide-angle light emitted by the light-emitting element 400 from being emitted through the central area of ​​the pixel opening, affecting the front-angle light output efficiency of the display panel, and improving the front-angle brightness of the display panel, thereby improving the display effect of the display picture and the display quality of the display device.

[0077] In some feasible embodiments, the orthographic projection of the shading structure 700 toward the substrate 100 coincides with the orthographic projection of the non-luminous area A2 toward the substrate 100 ; wherein the orthographic projection of the light-emitting element 400 toward the substrate 100 falls within the orthographic projection of the anode structure 300 toward the substrate 100 .

[0078] The display panel provided in the embodiment of the present application can improve the front-view light output efficiency in the light-emitting area A1, improve the front-view brightness of the display panel, and avoid the shading structure 700 occupying too much space, affecting the uniformity of the light output of the pixel unit and causing black spots to appear on the display screen, thereby improving the display effect of the display panel and the display quality of the display device.

[0079] In some feasible implementations, the orthographic projection of the anode structure 600 toward the substrate 100 does not overlap with the orthographic projection of the light shielding structure 700 toward the substrate 100 .

[0080] The display panel provided in the embodiment of the present application can improve the light shielding ability of the light shielding structure 700 and prevent light from emitting from the non-luminous area A2, thereby improving the display effect of the display panel and the display quality of the display device.

[0081] In some feasible implementations, the light shielding structure 700 and the pixel defining layer 200 are prepared simultaneously.

[0082] Exemplarily, the light shielding structure 700 and the pixel defining layer 200 are made of the same material.

[0083] The display panel provided in the embodiment of the present application can save the display panel preparation process, reduce the difficulty of display panel preparation, and improve the display panel preparation efficiency by simultaneously preparing the shading structure 700 and the pixel defining layer 200.

[0084] In some feasible implementations, the orthographic projection of the lens structure 600 toward the substrate 100 and the orthographic projection of the non-luminous area A2 toward the substrate 100 at least partially do not overlap.

[0085] Exemplarily, the orthographic projection of the lens structure 600 toward the substrate 100 can cover the orthographic projection of the non-luminous area A2 toward the substrate 100. The amount of light incident on the lens structure 600 can be increased, so that the wide-angle light emitted by the light-emitting element 400 can be refracted through the lens structure 600, thereby improving the light adjustment capability of the lens structure 600, increasing the orthographic light output amount of the pixel unit, improving the orthographic light output efficiency of the display panel, and improving the orthographic brightness of the display panel.

[0086] The display panel provided in the embodiment of the present application can form a lens structure 600 whose orthographic projection is a ring or an open ring by setting the orthographic projection of the lens structure 600 toward the substrate 100 to be at least partially non-overlapping with the orthographic projection of the non-luminous area A2 toward the substrate 100. This can prevent the light emitted from the central area of ​​the light-emitting element 400 from passing through the lens structure 600, thereby preventing the lens structure 600 from converging the light, preventing the light from being deflected, and maintaining the original optical path. This can increase the amount of light emitted at a front viewing angle of the pixel unit, improve the light emission efficiency at a front viewing angle of the pixel unit, improve the front viewing angle brightness of the display panel, and improve the display effect of the display image and the display quality of the display device.

[0087] In some feasible implementations, the orthographic projection of the light emitting area A1 toward the substrate 100 falls within the orthographic projection of the lens structure 600 toward the substrate 100 .

[0088] Exemplarily, the orthographic projection of the lens structure 600 toward the substrate 100 falls within the orthographic projection of the light-emitting area A1 toward the substrate 100. Among them, the orthographic projection of at least part of the light-emitting element 400 near the non-light-emitting area A2 toward the substrate 100 does not overlap with the orthographic projection of the lens structure 600 toward the substrate 100. The orthographic light output of at least part of the light-emitting element 400 near the non-light-emitting area A2 is large. By setting the orthographic projection of the light-emitting element 400 toward the substrate 100 to not overlap with the orthographic projection of the lens structure 600 toward the substrate 100, it is possible to avoid the lens structure 600 from forming a deflection effect on the orthographic light output, and further improve the orthographic light output of the pixel unit.

[0089] The display panel provided in the embodiment of the present application can improve the lens structure 600's ability to collect light emitted by the light-emitting element 400 by setting the orthographic projection of the light-emitting area A1 toward the substrate 100 to fall within the orthographic projection of the lens structure 600 toward the substrate 100, so that the wide-angle light emitted by the light-emitting element 400 can be refracted through the lens structure 600, thereby improving the light adjustment ability of the lens structure 600, increasing the orthographic light output of the pixel unit, improving the orthographic light output efficiency of the display panel, improving the orthographic brightness of the display panel, and improving the display effect of the display image and the display quality of the display device.

[0090] In some feasible implementations, the ratio of the area of ​​the light-emitting area A1 to the area of ​​the non-light-emitting area A2 ranges from 1 to 3.

[0091] The display panel provided by the embodiment of the present application can avoid the ratio of the area of ​​the light-emitting area A1 to the area of ​​the non-light-emitting area A2 being too small, resulting in a black spot in the center of the pixel unit, affecting the integrity and uniformity of the display image, and can also avoid the ratio of the area of ​​the light-emitting area A1 to the area of ​​the non-light-emitting area A2 being too large, resulting in an excessively large positive projection area of ​​the lens structure 600 toward the substrate 100, making the curvature of the surface of the lens structure 600 away from the substrate 100 insufficient, affecting the front-view light emission effect of the pixel unit. Thereby, the front-view light emission efficiency of the display panel can be improved, the front-view brightness of the display panel can be improved, and the display effect of the display image and the display quality of the display device can be improved.

[0092] In some feasible implementations, the ratio of the area of ​​the orthographic projection of the lens structure 600 toward the substrate 100 to the area of ​​the light emitting area A1 ranges from 1.4 to 2.

[0093] The display panel provided by the embodiment of the present application can avoid the ratio of the area of ​​the orthographic projection of the lens structure 600 toward the substrate 100 to the area of ​​the light-emitting area A1 being too small, resulting in less light incident on the lens structure 600, causing the light emitted from the light-emitting element 400 at a large viewing angle to be unable to be adjusted by the lens structure 600, affecting the amount of light emitted at the orthographic viewing angle of the pixel unit, and can also avoid the ratio of the area of ​​the orthographic projection of the lens structure 600 toward the substrate 100 to the area of ​​the light-emitting area A1 being too large, resulting in insufficient curvature of the surface of the lens structure 600 away from the substrate 100, affecting the light emitting effect at the orthographic viewing angle of the pixel unit. Thereby, the light emitting efficiency at the orthographic viewing angle of the display panel can be improved, the brightness at the orthographic viewing angle of the display panel can be improved, and the display effect of the display picture and the display quality of the display device can be improved.

[0094] As shown in FIG. 8 , in some feasible implementations, the lens structure 600 includes a plurality of sub-lens structures 600 that are spaced apart from each other, and each sub-lens structure 600 is arranged in a ring shape.

[0095] The display panel provided in the embodiment of the present application can, by setting a plurality of sub-lens structures, make the orthographic projection shape of the lens structure 600 toward the substrate 100 an open ring with a plurality of openings, which can further increase the curvature of the surface of the lens structure 600 away from the substrate 100, enhance the light adjustment capability of the lens structure 600, thereby increasing the light output at the front viewing angle of the pixel unit, improving the light output efficiency at the front viewing angle of the display panel, improving the brightness at the front viewing angle of the display panel, and improving the display effect of the display picture and the display quality of the display device.

[0096] As shown in FIG. 7 , in some feasible implementations, the display panel further includes: a first refraction layer 800 , located in the gap between adjacent lens structures 600 , and on a side of the lens layer away from the substrate 100 , wherein the refractive index of the lens layer is greater than the refractive index of the first refraction layer 800 .

[0097] Exemplarily, the light path of the third light ray L3 in the display panel is shown in FIG. 7 .

[0098] The display panel provided in the embodiment of the present application can form a refractive surface at the junction of the first refractive layer 800 and the lens structure 600 by setting the first refractive layer 800, so that the light incident on the lens structure 600 can be refracted at the refractive surface, so that the wide-viewing angle light emitted by the light-emitting element 400 can be reduced after passing through the lens structure 600, and the light output amount of the pixel unit at the normal viewing angle can be increased, the light output efficiency of the display panel at the normal viewing angle can be improved, the brightness of the display panel at the normal viewing angle can be improved, and the display effect of the display picture and the display quality of the display device can be improved.

[0099] In some feasible embodiments, the encapsulation layer 500 includes a first encapsulation layer 510, a second encapsulation layer 520 and a third encapsulation layer 530 stacked in sequence along the thickness direction of the substrate 100, wherein the first encapsulation layer 510 is located between the light-emitting layer and the second encapsulation layer 520; the display panel also includes: a second refraction layer 900, located between the first encapsulation layer 510 and the second encapsulation layer 520, and the refractive indexes of the first encapsulation layer 510, the second encapsulation layer 520 and the third encapsulation layer 530 are all less than the refractive index of the second refraction layer 900.

[0100] The display panel provided in the embodiment of the present application can cause the light emitted by the light emitting element 400 to be refracted twice between the first encapsulation layer 510 and the second refraction layer 900, and between the second refraction layer 900 and the second encapsulation layer 520 by setting the second refraction layer 900 between the first encapsulation layer 510 and the second encapsulation layer 520, so that the incident angle of the incident light of the lens structure 600 can be adjusted, and further, after the light incident to the lens structure 600 passes through the lens structure 600, the emitted light is close to the normal viewing angle, so that the normal viewing angle light emission amount of the pixel unit can be increased, the normal viewing angle light emission efficiency of the display panel can be improved, the normal viewing angle brightness of the display panel can be improved, and the display effect of the display picture and the display quality of the display device can be improved.

[0101] In some feasible implementations, the refractive index of the encapsulation layer 500 is less than the refractive index of the lens layer.

[0102] The display panel provided in the embodiment of the present application can form a refractive surface between the encapsulation layer 500 and the lens structure 600 by setting the refractive index of the encapsulation layer 500 to be lower than the refractive index of the lens layer, so that the light is refracted once before being incident on the lens structure 600, thereby adjusting the incident angle of the incident light of the lens structure 600, and further making the light incident on the lens structure 600 pass through the lens structure 600. The outgoing light is close to the normal viewing angle, thereby increasing the normal viewing angle light output of the pixel unit, improving the normal viewing angle light output efficiency of the display panel, improving the normal viewing angle brightness of the display panel, and improving the display effect of the display picture and the display quality of the display device.

[0103] As shown in FIG. 9 , a second aspect of an embodiment of the present application provides a display device, comprising: a display panel 1000 as described in any one of the first aspects above.

[0104] The display device provided in the embodiment of the present application determines the shape of the positive projection of at least one of the anode structure 300 of the light-emitting element 400 and the lens structure 600 toward the substrate 100 as a ring or an open ring, and makes the positive projections of the light-emitting element 400, the anode structure 300 and the lens structure 600 toward the substrate 100 at least partially overlap, so that a ring-shaped light-emitting area A1 can be formed in a pixel opening, thereby reducing the light output area in the pixel opening, and can further make the light emitted in the light-emitting area A1 to be emitted through the lens structure 600 to achieve light convergence and increase the positive viewing angle light output in the pixel opening, thereby improving the ratio of the positive viewing angle light output in the pixel unit to the light output area in the pixel opening, and further improving the positive viewing angle light output efficiency of the pixel unit, improving the positive viewing angle brightness of the display panel, and improving the display effect of the display picture and the display quality of the display device.

[0105] It can be understood that the display device in the embodiments of the present application can be an OLED display device, a QLED display device, electronic paper, a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, a wearable device, an Internet of Things device, or any other product or component with a display function, and the embodiments disclosed in the present application are not limited to this.

[0106] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", "ideal embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0107] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features of the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0108] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: substrate; A pixel defining layer, located on one side of the substrate, the pixel defining layer having a plurality of pixel openings; an anode layer, the anode layer and the pixel defining layer being located on the same side of the substrate, the anode layer comprising a plurality of anode structures arranged at intervals, the orthographic projection of the anode structure toward the substrate overlapping the orthographic projection of the pixel opening toward the substrate; A light-emitting layer, located on a side of the anode layer away from the substrate, the light-emitting layer comprising a plurality of light-emitting elements arranged in an array, and the light-emitting elements are located in the pixel opening; An encapsulation layer, located on a side of the light-emitting layer away from the substrate; A lens layer, located on a side of the packaging layer away from the substrate, the lens layer comprising a plurality of lens structures arranged at intervals; The orthographic projection of at least one of the light emitting element, the anode structure and the lens structure toward the substrate is in the shape of a ring or an open ring, and the orthographic projections of the light emitting element, the anode structure and the lens structure toward the substrate at least partially overlap.

2. The display panel according to claim 1, characterized in that: The pixel opening includes a light-emitting area and a non-light-emitting area, the light-emitting area is in a ring shape, and the light-emitting area is arranged around the non-light-emitting area; wherein the orthographic projection of the light emitting element toward the substrate coincides with the orthographic projection of the light emitting area toward the substrate; Optionally, an orthographic projection of the anode structure toward the substrate coincides with an orthographic projection of the light-emitting region toward the substrate.

3. The display panel according to claim 2, characterized in that: Also includes: A light shielding structure is located in the non-light emitting area of ​​the pixel opening, the light shielding structure and the light emitting element are located in the pixel opening, and the light emitting element is arranged around the light shielding structure; Optionally, an orthographic projection of the light-shielding structure toward the substrate coincides with an orthographic projection of the non-luminous area toward the substrate; wherein the orthographic projection of the light emitting element toward the substrate falls within the orthographic projection of the anode structure toward the substrate; Optionally, an orthographic projection of the anode structure toward the substrate does not overlap with an orthographic projection of the light shielding structure toward the substrate; Optionally, the shading structure and the pixel defining layer are prepared simultaneously.

4. The display panel according to claim 2, characterized in that: An orthographic projection of the lens structure toward the substrate and an orthographic projection of the non-luminous area toward the substrate at least partially do not overlap.

5. The display panel according to claim 4, characterized in that: An orthographic projection of the light emitting area toward the substrate falls within an orthographic projection of the lens structure toward the substrate.

6. The display panel according to claim 5, characterized in that: The ratio of the area of ​​the light-emitting area to the area of ​​the non-light-emitting area ranges from 1 to 3; Optionally, a ratio of an area of ​​an orthographic projection of the lens structure toward the substrate to an area of ​​the light emitting region ranges from 1.4 to 2.

7. The display panel according to claim 1, characterized in that: The lens structure comprises a plurality of sub-lens structures arranged at intervals, and each of the sub-lens structures is arranged in a ring shape.

8. The display panel according to claim 1, characterized in that: Also includes: The first refractive layer is located in the gap between the adjacent lens structures and on a side of the lens layer away from the substrate, and the refractive index of the lens layer is greater than the refractive index of the first refractive layer.

9. The display panel according to claim 1, characterized in that: The encapsulation layer comprises a first encapsulation layer, a second encapsulation layer and a third encapsulation layer which are sequentially stacked along the thickness direction of the substrate, wherein the first encapsulation layer is located between the light-emitting layer and the second encapsulation layer; The display panel further includes: A second refractive layer is located between the first encapsulation layer and the second encapsulation layer, and the refractive indexes of the first encapsulation layer, the second encapsulation layer and the third encapsulation layer are all smaller than the refractive index of the second refractive layer; Optionally, the refractive index of the encapsulation layer is smaller than the refractive index of the lens layer.

10. A display device, characterized in that: include: A display panel as claimed in any one of claims 1 to 9.

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