Display panel, preparation method thereof and display device

Abstract

The invention relates to a display panel, a preparation method thereof and a display device. The display panel includes: a substrate; the partition structure is arranged on one side of the substrate, a plurality of partition openings are defined by the partition structure and distributed along at least two track lines based on the first center, the distances between the at least two track lines and the first center are different, and the at least two track lines are located in different sub-display areas; the light-emitting unit is arranged in the partition opening; wherein the area densities of the partition structures in different sub-display areas of the display panel are the same, and the area densities are the ratio of the orthographic projection areas of the partition structures and the sub-display areas corresponding to the partition structures on the substrate; therefore, when the display panel works, the reflection area densities of the partition structures in the different sub display areas are the same, so that the reflectivity of the partition structures in the different sub display areas is the same, the reflection brightness and the reflection hue in the different sub display areas of the display panel are the same, and the product performance is improved.

Description

Technical Field

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

[0002] AMOLED (Active Matrix / Organic Light Emitting Diode) display panel is one of the hot topics in the current display panel research field. Compared with liquid crystal display panels, AMOLED display panels have the advantages of being able to be bent, low energy consumption, low cost, self-luminescence, wide viewing angle and fast response speed.

[0003] The light-emitting devices of AMOLED display panels often have uneven brightness and hue, which affects the display effect. Summary of the invention

[0004] Provided are a display panel capable of improving display effect, a method for preparing the same, and a display device.

[0005] In a first aspect, an embodiment of the present application provides a display panel, including:

[0006] substrate;

[0007] A partition structure is provided on one side of the substrate, the partition structure defines a plurality of partition openings, the plurality of partition openings are distributed along at least two track lines based on a first center, at least two of the track lines have different distances from the first center, and at least two of the track lines are located in different sub-display areas;

[0008] A light emitting unit is disposed in the partition opening;

[0009] The area density of the partition structures in different sub-display areas of the display panel is the same, and the area density is the ratio of the orthographic projection area of ​​the partition structure to the sub-display area corresponding to the partition structure on the substrate.

[0010] The display panel provided by the embodiment of the present application is provided with a partition structure on the substrate, wherein the partition structure defines a plurality of partition openings for accommodating the light-emitting unit, wherein the plurality of partition openings are distributed along at least two track lines, and the at least two track lines are defined to be located at different positions and in different sub-display areas, and the area density of the partition structures in different sub-display areas is the same. In this way, when the display panel is working, the reflection area density of the partition structures in different sub-display areas is the same, so that the reflectivity of the partition structures in different sub-display areas can be the same, and further the reflection brightness and reflection hue in different sub-display areas of the display panel are the same, thereby improving the product performance.

[0011] In one embodiment, at least two of the track lines include a first arc line and a second arc line that are concentrically arranged, and the first arc line and the second arc line are respectively located in two adjacent sub-display areas;

[0012] The partition structure includes a first partition structure and a second partition structure located in two adjacent sub-display areas, the first partition structure defines a plurality of first openings arranged at intervals along the first arc line, and the second partition structure defines a plurality of second openings arranged at intervals along the second arc line;

[0013] The first partition structure and the second partition structure have the same area density.

[0014] In this way, the reflectivity of the first partition structure and the reflectivity of the second partition structure in two adjacent sub-display areas of the display panel can be made the same.

[0015] In one of the embodiments, the display panel further includes concentric sub-lines between the first arc line and the second arc line;

[0016] Along the direction away from the first center, the midpoint of the line connecting the centers of two adjacent separated openings of the first opening located on the first arc line and the second opening located on the second arc line falls on the concentric sub-line;

[0017] The concentric sub-lines divide the display area into two adjacent sub-display areas, and the area density of the partition structures in the two adjacent sub-display areas is the same.

[0018] In this way, it can be ensured that the reflectivity of the partition structure in the entire display panel is the same.

[0019] In one embodiment, a plurality of the first openings are evenly arranged on the first arc line, and / or a plurality of the second openings are evenly arranged on the second arc line;

[0020] Preferably, the numbers of the partition openings in different sub-display areas are the same, and the areas of the partition openings in different sub-display areas are different;

[0021] Preferably, the opening areas of the partition openings located in the same sub-display area are the same.

[0022] In this way, the light emitting brightness in at least two sub-display areas can be made uniform.

[0023] In one of the embodiments, an opening area of ​​a portion of the partition openings in at least one of the sub-display areas is a first area, and an opening area of ​​another portion of the partition openings is a second area, and the first area is greater than the second area.

[0024] In this way, the local transmittance can be adjusted in order to obtain the reflectivity of a specific function.

[0025] In one of the embodiments, the display panel further comprises a pixel defining layer disposed on the substrate, the pixel defining layer defines a pixel opening, the partition structure is disposed on the pixel defining layer, an orthographic projection of the pixel opening on the substrate falls within an orthographic projection of the partition opening on the substrate, and the light emitting unit is disposed within the pixel opening;

[0026] Preferably, the partition openings are arranged in one-to-one correspondence with the pixel openings, and the partition openings are arranged concentrically with the pixel openings;

[0027] Preferably, in the first opening and the pixel opening that are concentrically arranged on the first arc line, the distance between the center of the pixel opening and the first center is a1, and the distance between the edge of the pixel opening and the first opening is b1;

[0028] In the second opening and the pixel opening which are concentrically arranged on the second arc line, the distance between the center of the pixel opening and the first center is a2, and the distance between the edge of the pixel opening and the second opening is b2;

[0029] a2>a1, b2>b1.

[0030] In this way, it can be ensured that the reflection area of ​​the partition structure remains stable in the direction away from the first center.

[0031] In one embodiment, in two adjacent sub-display areas, the area of ​​the partition structure between two adjacent first openings on the first arc line is c1, and the area of ​​the partition structure between two adjacent second openings on the second arc line is c2;

[0032] c2=c1;

[0033] Preferably, the plurality of partition openings are scattered and distributed along a radial direction based on the first center.

[0034] In this way, the reflectivity at different arc positions away from the first center can be made substantially the same.

[0035] In one embodiment, the partition structure is a grid structure.

[0036] In this way, on the one hand, it is ensured that the partition structure has a better packaging effect on the light-emitting unit; on the other hand, the PPI (Pixels Per Inch, pixel density unit) can be improved.

[0037] In a second aspect, an embodiment of the present application provides a method for manufacturing a display panel, comprising:

[0038] providing a substrate;

[0039] A partition structure is formed on the substrate, wherein the partition structure defines a plurality of partition openings, wherein the plurality of partition openings are distributed along at least two track lines based on a first center, at least two of the track lines have different distances from the first center, and at least two of the track lines are located in different sub-display areas;

[0040] A light-emitting unit is formed on the substrate, and the light-emitting unit is arranged in the partition opening. The area density of the partition structure in different sub-display areas of the display panel is the same, and the area density is the ratio of the direct projection area of ​​the partition structure to the sub-display area corresponding to the partition structure on the substrate.

[0041] The manufacturing method of the display panel provided by the embodiment of the present application is to set a partition structure on the substrate, the partition structure defines a plurality of partition openings for accommodating the light-emitting unit, the plurality of partition openings are distributed along at least two track lines, and the at least two track lines are defined to be located at different positions and in different sub-display areas, and the area density of the partition structures in different sub-display areas is the same. In this way, when the display panel is working, the reflection area density of the partition structures in different sub-display areas is the same, so that the reflectivity of the partition structures in different sub-display areas can be the same, and then the reflection brightness and reflection hue in different sub-display areas of the display panel are the same, thereby improving the product performance.

[0042] In a third aspect, an embodiment of the present application provides a display device, comprising the display panel described in any embodiment of the first aspect.

[0043] The display device provided by the embodiment of the present application is provided with a partition structure on the substrate, wherein the partition structure defines a plurality of partition openings for accommodating the light-emitting unit, wherein the plurality of partition openings are distributed along at least two track lines, and the at least two track lines are defined to be located at different positions and in different sub-display areas, and the area density of the partition structures in different sub-display areas is the same. In this way, when the display panel is working, the reflection area density of the partition structures in different sub-display areas is the same, so that the reflectivity of the partition structures in different sub-display areas can be the same, and further the reflection brightness and reflection hue in different sub-display areas of the display panel are the same, thereby improving the product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0045] Figure 1 A schematic diagram of the cross-sectional structure of a display panel provided in one embodiment of the present application.

[0046] Figure 2 A cross-sectional schematic diagram of a display panel provided in one embodiment of the present application.

[0047] Figure 3 A cross-sectional schematic diagram of another display panel provided by an embodiment of the present application.

[0048] Figure 4 A cross-sectional schematic diagram of another display panel provided in an embodiment of the present application.

[0049] Figure 5 A cross-sectional schematic diagram of another display panel provided by an embodiment of the present application.

[0050] Figure 6 A cross-sectional schematic diagram of another display panel provided by an embodiment of the present application.

[0051] Figure 7 A schematic diagram of a process of a method for preparing a display panel provided in one embodiment of the present application.

[0052] Figure 8 A schematic diagram of the structure of a display device provided in one embodiment of the present application.

[0053] Description of reference numerals:

[0054] 01. Display device;

[0055] 10. Display panel;

[0056] 100, substrate; 110, first center; 120, first arc line; 130, second arc line; 140, first sub-display area; 150, second sub-display area; 160, concentric sub-lines;

[0057] 200, partition structure; 210, partition opening; 221, first opening; 222, second opening; 220, blocking portion; 230, isolating body; 240, first partition structure; 250, second partition structure;

[0058] 300, light-emitting unit; 310, anode; 320, light-emitting layer; 330, cathode;

[0059] 400, pixel defining layer; 410, pixel defining portion; 420, pixel opening. DETAILED DESCRIPTION

[0060] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0061] 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.

[0062] 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.

[0063] 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 an intermediate layer. In addition, it is also understood that when a layer is referred to as being "between" two layers, the layer may be the only layer between the two layers, or there may be one or more intermediate layers. In addition, the same reference numerals always represent the same elements.

[0064] 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.

[0065] 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.

[0066] 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, it modifies the entire list of elements, rather than modifying the individual elements in the list.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0068] 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.

[0069] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" can mean within one or more standard deviations, which are not limited here.

[0070] Furthermore, in the specification, the phrase “planar distribution schematic diagram” refers to a drawing when a target portion is viewed from above, and the phrase “cross-sectional schematic diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0071] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0072] As described in the background technology, the OLED screen has a curved surface in the application scenario of spherical bonding products. In specific operation, in order to meet the pixel drive, the arrangement of pixels in the circular OLED screen has an uneven density distribution, showing that the pixel density gradually decreases from the inside to the outside. However, due to the fixed distance design between the blocking part and the edge of the pixel opening in the existing OLED screen, the density of the blocking part in different areas is different, and the different areas in the macroscopic performance have different reflection brightness and reflection hue, which affects the display effect.

[0073] In view of the above problems, the embodiments of the present application provide a display panel and a method for manufacturing the same, and a display device, wherein a plurality of partition openings are defined by a partition structure, and a light-emitting unit is arranged in the partition openings, and the area density of the partition structures in different sub-display areas of the display panel is the same, so that the overall reflectivity of the display panel is stable and the reflectivity at different positions is the same. In this way, the overall reflection brightness and reflection hue of the display panel are the same, thereby improving product performance.

[0074] First, refer to Figure 1 As shown, the embodiment of the present application provides a display panel 10, which includes a substrate 100, a partition structure 200 and a light emitting unit 300. The partition structure 200 is disposed on one side of the substrate 100, and the partition structure 200 defines a plurality of partition openings 210, referring to Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, a plurality of partition openings 210 are distributed along at least two trajectory lines based on the first center 110, at least two trajectory lines have different distances from the first center, and at least two concentric arcs are located in different sub-display areas. The light-emitting unit 300 is arranged in the partition opening 210. Among them, the area density of the partition structure 200 in different sub-display areas of the display panel 10 is the same, and the area density is the ratio of the orthographic projection area of ​​the partition structure 200 to the sub-display area corresponding to the partition structure 200 on the substrate 100. It should be pointed out that the orthographic projection area of ​​the sub-display area of ​​the present application on the substrate 100 is A1, the orthographic projection area of ​​the partition structure 200 in the sub-display area on the substrate 100 is A2, and the area density of the partition structure 200 in the sub-display area is A2 / A1.

[0075] Here, it should be noted that the substrate 100 may be an array substrate, the substrate 100 has an array driving circuit, and the first center 110 is the bending center of the display panel 10. The light-emitting unit 300 includes an anode 310, a light-emitting layer 320, and a cathode 330. The materials of the anode 310 and the cathode 330 may be at least one of indium tin oxide (ITO) and indium zinc oxide (IZO). The light-emitting layer 320 may be an organic layer. The array driving circuit on the substrate 100 is electrically connected to the anode 310, and is used to apply a driving voltage between the anode 310 and the cathode 330 to drive the light-emitting unit 300 to emit light and perform a display function. The multiple light-emitting units 300 may include a portion of light-emitting units emitting red light, a portion of light-emitting units emitting blue light, and a portion of light-emitting units emitting green light. These light-emitting units 300 may be distributed in groups. The light-emitting layers 320 and cathodes 330 of adjacent light-emitting units 300 are separated by a partition structure 200. The partition structure 200 includes a blocking portion 220 and an isolating body 230. The blocking portion 220 and the isolating body 230 cooperate to define a partition opening 210. The reflection area of ​​the partition structure 200 is constituted by the blocking portion 220.

[0076] It should be noted that the area density of the partition structures 200 in different sub-display areas of the present application is the same, which means that the area density of the partition structures 200 in at least two sub-display areas is the same, and the size and position in the sub-display area can be set correspondingly or not, refer to Figure 2 As shown, the area density of the partition structures 200 in the two sub-display areas is the same. In this case, the sizes and positions in the two sub-display areas can be set correspondingly. Figure 3 , Figure 4 as well as Figure 5 As shown, the area density of the partition structures 200 in the three sub-display areas is the same. Figure 3 As shown, the sizes of the three sub-display areas do not correspond to the settings. Figure 4 as well as Figure 5 As shown, the positions within the three sub-display areas do not correspond to the settings.

[0077] The display panel 10 provided in the embodiment of the present application is provided with a partition structure 200 on the substrate 100, and the partition structure 200 defines a partition opening 210 for accommodating the light-emitting unit 300. The plurality of partition openings 210 are distributed along at least two track lines, and the at least two track lines are defined to be located at different positions and in different sub-display areas, and the area density of the partition structures 200 in different sub-display areas is the same. In this way, when the display panel 10 is working, the reflection area density of the partition structures 200 in different sub-display areas is the same, so that the reflectivity of the partition structures 200 in different sub-display areas can be the same, and then the reflection brightness and reflection hue in different sub-display areas of the display panel 10 are the same, thereby improving product performance.

[0078] In one embodiment, referring to Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 As shown, in one embodiment, at least two trajectory lines include a first arc line 120 and a second arc line 130, the first arc line 120 and the second arc line 130 are arranged concentrically, the first arc line 120 is located in the first sub-display area 140, the second arc line 130 is located in the second sub-display area 150, and the first sub-display area 140 and the second sub-display area 150 are arranged adjacent to each other. The partition structure 200 includes a first partition structure 240 and a second partition structure 250, the first partition structure 240 is located in the first sub-display area 140, the second partition structure 250 is located in the second sub-display area 150, the first partition structure 240 defines a plurality of first openings 221 arranged at intervals along the first arc line 120, and the second partition structure 250 defines a plurality of second openings 222 arranged at intervals along the second arc line 130. The area density of the first partition structure 240 and the second partition structure 250 is the same.

[0079] In this way, in the display panel 10, the area density of the first partition structure 240 of the first sub-display area 140 and the second partition structure 250 of the second sub-display area 150 is the same, so that the reflectivity of light in the first partition structure 240 and the second partition structure 250 is the same, and the brightness and hue of the adjacent first sub-display area 140 and the second sub-display area 150 are the same.

[0080] In one embodiment, referring to Figure 2 as well as Figure 6 As shown, the display panel 10 also includes a concentric sub-line 130 located between the first arc 120 and the second arc 130. Along the direction away from the first center 110, the midpoint of the center line connecting two adjacent partition openings 210 in the first opening 221 located on the first arc 120 and the second opening 222 located on the second arc 130 falls on the concentric sub-line 130; the concentric sub-line 130 divides the display area into two adjacent sub-display areas, and the area density of the partition structure 200 of the two adjacent sub-display areas is the same. It should be noted that the two sub-display areas divided by the concentric sub-lines 130 are respectively the first sub-display area 140 and the second sub-display area 150, the first sub-display area 140 has a first arc line 120, and the second sub-display area 150 has a second arc line 130, and the partition structure 200 of two adjacent sub-display areas with the same area density not only refers to the first partition structure 240 and the second partition structure 250, but also includes other partition structures 200 in the first sub-display area 140 except the first partition structure 240, and other partition structures 200 in the second sub-display area 150 except the second partition structure 250.

[0081] In this way, the entire display area in the display panel 10 is divided into two adjacent sub-display areas by concentric sub-lines 130, and at the same time, the area density of the partition structure 200 in the two sub-display areas is the same, so that the reflectivity of the partition structure 200 in the entire display area is the same, thereby making the reflection brightness and reflection hue in the display area of ​​the entire display panel 10 the same.

[0082] In one embodiment, a plurality of first openings 221 are evenly arranged on the first arc 120, so that a plurality of light-emitting units 300 on the first arc 120 can be evenly arranged, so that the light brightness in the first sub-display area 140 where the first arc 120 is located is uniform, thereby improving the display effect.

[0083] Alternatively, multiple second openings 222 are evenly arranged on the second arc 130, so that multiple light-emitting units 300 on the second arc 130 can be evenly arranged, so that the light brightness in the second sub-display area 150 where the second arc 130 is located is uniform, thereby improving the display effect.

[0084] Alternatively, the plurality of first openings 221 are evenly arranged on the first arc 120, and the plurality of second openings 222 are evenly arranged on the second arc 130. In this way, the plurality of light-emitting units 300 on the first arc 120 and the plurality of light-emitting units 300 on the second arc 130 can be evenly arranged, thereby making the light brightness uniform in the first sub-display area 140 and the second sub-display area 150, thereby improving the display effect.

[0085] In one example, referring to Figure 2 , Figure 3 , Figure 4 as well as Figure 5As shown, the number of partition openings 210 in different sub-display areas is the same, and the areas of the partition openings 210 in different sub-display areas are different. In this way, the reflectivity of the partition structure 200 in different sub-display areas can be made the same by adjusting the areas of the partition openings 210 in different sub-display areas. It should be noted that, in the direction away from the first center 110, the opening area of ​​the partition openings 210 in different sub-display areas gradually increases. It is worth noting that along the direction away from the first center 110, the opening area of ​​the partition openings 210 located in different sub-display areas can be a linear gradient; along the direction away from the first center 110, the opening area of ​​the partition openings 210 located in different sub-display areas can also be a step-like change. For example, by adjusting the opening area of ​​the partition openings 210 located in different sub-display areas, areas with specific functions can be obtained, and the specific functions can be camera, under-screen detection, etc.; of course, along the direction away from the first center 110, the opening area of ​​the partition openings 210 located in different sub-display areas can also be a combination of linear gradient and sudden change to obtain display panels 10 with different effects.

[0086] In one example, referring to Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, the opening areas of the partition openings 210 in the same sub-display area are the same, so that the areas corresponding to the partition openings 210 in the same sub-display area can be the same, thereby ensuring that the reflectivity of the partition structure 200 at various locations in the same sub-display area is the same.

[0087] In one embodiment, referring to Figure 6 As shown, an opening area of ​​a portion of the partition opening 210 in at least one sub-display area is a first area, and an opening area of ​​another portion of the partition opening 210 is a second area, and the first area is greater than the second area. It should be noted that the partition opening 210 corresponding to the first area can be provided with a light-emitting unit 300, and the partition opening 210 corresponding to the second area can be provided with an under-screen structure, and the under-screen structure can be a camera, a fingerprint module, etc.

[0088] In this way, by limiting the opening area of ​​the partition opening 210 at different positions in at least one sub-display area to be different, the local transmittance in the sub-display area can be adjusted and the reflectivity of the local area in the sub-display area can be changed to obtain the reflectivity of a specific function.

[0089] In one embodiment, referring to Figure 1 , Figure 2 as well as Figure 6As shown, the display panel 10 further includes a pixel defining layer 400, which is disposed on the substrate 100. The pixel defining layer 400 defines a pixel opening 420, and the partition structure 200 is disposed on the pixel defining layer 400. The orthographic projection of the pixel opening 420 on the substrate 100 falls within the orthographic projection of the partition opening 210 on the substrate 100, and the light-emitting unit 300 is disposed within the pixel opening 420. It should be noted that the pixel defining layer 400 includes a plurality of pixel defining portions 410 and a plurality of pixel openings 420, and the partition structure 200 is disposed on the plurality of pixel defining portions 410. In this way, the pixel defining layer 400 defines the setting area of ​​the light-emitting unit 300, and the cooperation of the pixel defining layer 400 and the partition structure 200 enables the film layers of adjacent light-emitting units 300 to be partitioned.

[0090] In one example, referring to Figure 1 , Figure 2 as well as Figure 6 As shown, the partition opening 210 is arranged in one-to-one correspondence with the pixel opening 420, and the partition opening 210 and the pixel opening 420 are arranged concentrically; it should be noted here that "arranged in one-to-one correspondence" means that each partition opening 210 corresponds to a pixel opening 420. In this way, on the one hand, the periphery of each light-emitting unit 300 has a partition structure 200, so that the adjacent light-emitting units 300 can be effectively partitioned and the partition packaging effect can be improved. On the other hand, the partition structure 200 can be evenly arranged on the display panel 10, so as to facilitate the realization of the same area density of the partition structure 200 in different sub-display areas.

[0091] In one example, referring to Figure 2 as well as Figure 6 As shown, in the first opening 221 and the pixel opening 420 which are concentrically arranged on the first arc 120, the distance between the center of the pixel opening 420 and the first center 110 is a1, and the edge distance between the pixel opening 420 and the first opening 221 is b1, and in the second opening 222 and the pixel opening 420 which are concentrically arranged on the second arc 130, the distance between the center of the pixel opening 420 and the first center 110 is a2, and the edge distance between the pixel opening 420 and the second opening 222 is b2; a2>a1, b2>b1. In this way, it is ensured that the area of ​​the sub-display area increases while the area occupied by the partition opening 210 increases along the direction away from the first center 110, thereby ensuring that the area of ​​the partition structure 200 in the display panel 10 remains stable as a whole, and avoiding the occurrence of reflectivity differences in different regions.

[0092] It should be noted that the shapes of the partition opening 210 and the pixel opening 420 can be the same, for example, the partition opening 210 and the pixel opening 420 are both annular structures or frame structures. In this case, the edge distance b1 of all pixel openings 420 and the first opening 221 is the same, and the edge distance b2 of all pixel openings 420 and the second opening 222 is the same. The shapes of the partition opening 210 and the pixel opening 420 can be different, for example, the partition opening 210 is annular structure, and the pixel opening 420 is frame structure. In this case, the edge distance b2 of all pixel openings 420 and the second opening 222 is greater than the edge distance b1 of all pixel openings 420 and the first opening 221.

[0093] In one embodiment, referring to Figure 2 as well as Figure 6 As shown, in two adjacent sub-display areas, the area of ​​the partition structure 200 between two adjacent first openings 221 on the first arc 120 is c1, and the area of ​​the partition structure 200 between two adjacent second openings 222 on the second arc 130 is c2; c2=c1. In one example, a plurality of partition openings 210 are scattered radially based on the first center 110 to facilitate the arrangement of the partition openings 210. Of course, the partition openings 210 on at least two concentric arcs are staggered with respect to the radial direction based on the first center 110. For example, along the direction away from the first center 110, two adjacent partition openings 210 located on the first arc 120 and located on the second arc 130 are located on both sides of the radial direction based on the first center 110, respectively.

[0094] In this way, by adjusting the relationship between the distance between the center of the pixel opening 420 and the first center 110 and the edge distance between the pixel opening 420 and the partition opening 210, when a2>a1, b2>b1, the area c1 of the partition structure 200 between adjacent first openings 221 on the first arc 120 is the same or approximately the same as the area c2 of the partition structure 200 between two adjacent second openings 222 on the second arc 130, thereby making the reflectivity at different arc positions away from the first center 110 basically the same, thereby improving the reflection effect of the blocking portion 220 and improving the product performance of the display panel 10.

[0095] In one embodiment, referring to Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 As shown, the partition structure 200 may be a grid structure, and the partition openings 210 formed by the partition structure 200 may be an annular opening or a frame opening. The shapes of the partition openings 210 formed by the partition structure 200 may be the same to facilitate the design of the partition structure 200.

[0096] In this way, by limiting the partition structure 200 to an integrated grid structure, the partition structure 200 is effectively shared between adjacent light-emitting units 300, which can save materials and design space while ensuring the partition effect, and improve PPI. Of course, the partition structure 200 is not limited to the above-mentioned grid structure, and the partition structure 200 can also be an independent closed structure, or other structural forms that can meet the requirements.

[0097] Second, refer to Figure 7 As shown, an embodiment of the present application provides a method for preparing a display panel 10 , and the method for preparing the display panel 10 can be used to prepare the display panel 10 of any embodiment of the first aspect.

[0098] Specifically, the method for preparing the display panel 10 includes:

[0099] S100 : providing a substrate 100 . Exemplarily, the substrate 100 may be an array substrate 100 having a driving circuit, or the substrate 100 may be an array substrate 100 having a driving circuit and a pixel defining layer 400 .

[0100] S200: forming a partition structure 200 on the substrate 100, the partition structure 200 defining a plurality of partition openings 210, the plurality of partition openings 210 being distributed along at least two track lines array based on the first center 110, the at least two track lines having different distances from the first center, and at least two concentric arcs being located in different sub-display areas. Exemplarily, the partition structure 200 may be directly disposed on the surface of the substrate 100, or the partition structure 200 may be disposed on the surface of the pixel defining layer 400 away from the substrate 100, and the preparation of the partition structure 200 is to first form a partition material layer, and then pattern the partition structure 200.

[0101] S300: forming a plurality of light-emitting units 300 on the substrate 100, the light-emitting units 300 being arranged in the partition opening 210, the partition structures 200 in different sub-display areas of the display panel 10 having the same area density, the area density being the ratio of the orthographic projection area of ​​the partition structure 200 to the sub-display area corresponding to the partition structure 200 on the substrate 100. Exemplarily, the light-emitting unit 300 may be prepared by sequentially evaporating the first conductive material layer, the light-emitting material layer and the second conductive material layer on the entire surface, and then patterning to form a plurality of light-emitting units 300, and repeating the above preparation method to prepare light-emitting units 300 of three colors respectively.

[0102] The manufacturing method of the display panel 10 provided in the embodiment of the present application is to set a partition structure 200 on the substrate 100, and the partition structure 200 defines a partition opening 210 for accommodating the light-emitting unit 300. The multiple partition openings 210 are distributed along at least two track lines, and the at least two track lines are defined to be located at different positions and in different sub-display areas, and the area density of the partition structures 200 in different sub-display areas is the same. In this way, when the display panel 10 is working, the reflection area density of the partition structures 200 in different sub-display areas is the same, so that the reflectivity of the partition structures 200 in different sub-display areas can be the same, and then the reflection brightness and reflection hue in different sub-display areas of the display panel 10 are the same, thereby improving product performance.

[0103] It should be understood that, although the steps in the flowchart of the accompanying drawings are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the accompanying drawings may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a portion of the steps or stages in other steps.

[0104] Thirdly, refer to Figure 8 As shown, an embodiment of the present application provides a display device 01, which includes a display panel 10 according to any embodiment of the first aspect.

[0105] The display device 01 can be a mobile or fixed terminal with a display panel 10, such as a mobile phone, a television, a tablet computer, a laptop computer, an ultra-mobile personal computer (UMPC), a personal digital assistant (PDA), a navigation device, a smart watch, a virtual reality device, etc.

[0106] The display device 01 provided in the embodiment of the present application is provided with a partition structure 200 on the substrate 100, and the partition structure 200 defines a partition opening 210 for accommodating the light-emitting unit 300. The plurality of partition openings 210 are distributed along at least two track lines, and the at least two track lines are defined to be located at different positions and in different sub-display areas, and the area density of the partition structures 200 in different sub-display areas is the same. In this way, when the display panel 10 is working, the reflection area density of the partition structures 200 in different sub-display areas is the same, so that the reflectivity of the partition structures 200 in different sub-display areas can be the same, and then the reflection brightness and reflection hue in different sub-display areas of the display panel 10 are the same, thereby improving the product performance.

[0107] 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 partition structure is provided on one side of the substrate, the partition structure defines a plurality of partition openings, the plurality of partition openings are distributed along at least two track lines based on a first center, at least two of the track lines have different distances from the first center, and at least two of the track lines are located in different sub-display areas; A light emitting unit is disposed in the partition opening; The area density of the partition structures in different sub-display areas of the display panel is the same, and the area density is the ratio of the orthographic projection area of ​​the partition structure to the sub-display area corresponding to the partition structure on the substrate.

2. The display panel according to claim 1, characterized in that: The at least two trajectory lines include a first arc line and a second arc line which are arranged concentrically, and the first arc line and the second arc line are respectively located in two adjacent sub-display areas; The partition structure includes a first partition structure and a second partition structure located in two adjacent sub-display areas, the first partition structure defines a plurality of first openings arranged at intervals along the first arc line, and the second partition structure defines a plurality of second openings arranged at intervals along the second arc line; The first partition structure and the second partition structure have the same area density.

3. The display panel according to claim 2, characterized in that: Also included are concentric sub-lines between the first arc and the second arc; Along the direction away from the first center, the midpoint of the line connecting the centers of two adjacent separated openings of the first opening located on the first arc line and the second opening located on the second arc line falls on the concentric sub-line; The concentric sub-lines divide the display area into two adjacent sub-display areas, and the area density of the partition structures in the two adjacent sub-display areas is the same.

4. The display panel according to claim 2, characterized in that: A plurality of the first openings are evenly arranged on the first arc line, and / or a plurality of the second openings are evenly arranged on the second arc line; Preferably, the numbers of the partition openings in different sub-display areas are the same, and the areas of the partition openings in different sub-display areas are different; Preferably, the opening areas of the partition openings located in the same sub-display area are the same.

5. The display panel according to claim 2, characterized in that: An opening area of ​​a portion of the partition openings in at least one of the sub-display areas is a first area, and an opening area of ​​another portion of the partition openings is a second area, and the first area is greater than the second area.

6. The display panel according to claim 2, characterized in that: The display panel further includes a pixel defining layer disposed on the substrate, the pixel defining layer defines a pixel opening, the partition structure is disposed on the pixel defining layer, the orthographic projection of the pixel opening on the substrate falls within the orthographic projection of the partition opening on the substrate, and the light emitting unit is disposed within the pixel opening; Preferably, the partition openings are arranged in one-to-one correspondence with the pixel openings, and the partition openings are arranged concentrically with the pixel openings; Preferably, in the first opening and the pixel opening that are concentrically arranged on the first arc line, the distance between the center of the pixel opening and the first center is a1, and the distance between the edge of the pixel opening and the first opening is b1; In the second opening and the pixel opening which are concentrically arranged on the second arc line, the distance between the center of the pixel opening and the first center is a2, and the distance between the edge of the pixel opening and the second opening is b2; a2>a1, b2>b1.

7. The display panel according to claim 6, characterized in that: In two adjacent sub-display areas, the area of ​​the partition structure between two adjacent first openings on the first arc line is c1, and the area of ​​the partition structure between two adjacent second openings on the second arc line is c2; c2=c1; Preferably, the plurality of partition openings are scattered and distributed along a radial direction based on the first center.

8. The display panel according to claim 1, characterized in that: The partition structure is a grid structure.

9. A method for preparing a display panel, characterized in that: include: providing a substrate; A partition structure is formed on the substrate, wherein the partition structure defines a plurality of partition openings, wherein the plurality of partition openings are distributed along at least two track lines based on a first center, at least two of the track lines have different distances from the first center, and at least two of the track lines are located in different sub-display areas; A light-emitting unit is formed on the substrate, and the light-emitting unit is arranged in the partition opening. The area density of the partition structure in different sub-display areas of the display panel is the same, and the area density is the ratio of the direct projection area of ​​the partition structure to the sub-display area corresponding to the partition structure on the substrate.

10. A display device, characterized in that: Comprising the display panel as described in any one of claims 1-8.

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