CN113193152A - Display substrate and display device - Google Patents
Display substrate and display device Download PDFInfo
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- CN113193152A CN113193152A CN202110476366.6A CN202110476366A CN113193152A CN 113193152 A CN113193152 A CN 113193152A CN 202110476366 A CN202110476366 A CN 202110476366A CN 113193152 A CN113193152 A CN 113193152A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/856—Arrangements for extracting light from the devices comprising reflective means
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
Abstract
The application provides a display substrate and a display device, wherein the display substrate comprises a substrate and a display functional layer, and the display functional layer comprises a plurality of luminous sub-pixels arranged in an array; at least one circle of convex structures are arranged above each luminous sub-pixel, and each convex structure comprises a plurality of sub-convex structures; in the light-emitting sub-pixels with the same light-emitting color, at least two light-emitting sub-pixels respectively correspond to different orthographic projection patterns on the display functional layer; the planarization layer covers the convex structures, and the refractive index of the planarization layer is larger than that of the convex structures. The total reflection interface of emergent light is increased by arranging at least one circle of convex structures on the display function layer, so that the light-emitting efficiency is improved; the plurality of sub-convex structures arranged at intervals can increase the brightness of light on the side surface, so that the problem of color cast at a large visual angle is solved; the protruding structures corresponding to at least part of the luminous sub-pixels in the luminous sub-pixels with the same luminous color are different, so that the light emitting uniformity of the display panel is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a display substrate and a display device.
Background
An OLED (organic electroluminescent diode) display substrate is a multi-layer structure including an OLED light emitting layer. The respective film layers in the OLED display substrate include different materials and have different refractive indices.
However, the inventors of the present application have found that, because each film layer in the existing OLED display substrate has a different refractive index, part of light emitted from the light emitting layer is reflected or totally reflected at an interface between the low refractive index film layer and the high refractive index film layer, so that the front light extraction efficiency of the display substrate is reduced.
In an existing display substrate, an opening is formed around a pixel opening region in a low refractive index film layer and the low refractive index film layer is covered by a high refractive index film layer, so that the light extraction efficiency of the front surface is improved. However, the film layer structure has a problem of color shift at a large viewing angle, and also affects uniformity of light output of the entire display substrate.
Disclosure of Invention
The application provides a display substrate and a display device aiming at the defects of the existing mode so as to solve the problems of large visual angle color cast and reduced light-emitting uniformity existing in the existing OLED display substrate.
In a first aspect, an embodiment of the present application provides a display substrate, including: the display device comprises a substrate, a display functional layer, a convex structure and a planarization layer; the display function layer is positioned on one side of the substrate and comprises a plurality of light-emitting sub-pixels which are arranged in an array mode, and the light-emitting sub-pixels are provided with pixel opening areas; at least one circle of the convex structures is arranged on one side of the light-emitting sub-pixel, which is far away from the display function layer, and each convex structure comprises a plurality of sub-convex structures which are circumferentially arranged at intervals along the pixel opening area; in the light emitting sub-pixels with the same light emitting color, at least two of the light emitting sub-pixels respectively correspond to the projection structures which have different orthographic projection patterns on the display function layer; the planarization layer covers the convex structures, and the refractive index of the planarization layer is larger than that of the convex structures.
Optionally, the display substrate includes a circle of first protruding structures, and the first protruding structures are the protruding structures closest to the pixel opening area; the first protrusion structure is a discontinuous annular structure and comprises a plurality of first sub-protrusion structures, and the pixel opening area is surrounded by the plurality of first sub-protrusion structures; a first sub-opening area is arranged between the adjacent first sub-protrusion structures, and the first sub-opening area enables the first protrusion structures to be discontinuous; in each light-emitting sub-pixel with the same light-emitting color, at least two orthographic projection patterns of the first protrusion structures corresponding to the light-emitting sub-pixels on the display function layer are different.
Optionally, the display substrate further includes a circle of second protruding structures besides the circle of first protruding structures, and the second protruding structures surround the first protruding structures; the second protruding structure is a discontinuous annular structure and comprises a plurality of second sub-protruding structures, a second sub-opening area is arranged between every two adjacent second sub-protruding structures, and the second protruding structures are discontinuous due to the second sub-opening areas.
Optionally, the second sub-protrusion structures and the first sub-protrusion structures are alternately arranged along the circumferential direction of the corresponding pixel opening area, and the first sub-opening area is at least surrounded by the second sub-protrusion structures.
Optionally, the display substrate further includes a circle of third protruding structures in addition to the circle of first protruding structures and the circle of second protruding structures, the third protruding structures surround the second protruding structures, and an offset distance between the third protruding structures and the second protruding structures is equal to an offset distance between the second protruding structures and the first protruding structures.
Optionally, the third protrusion structure is a discontinuous ring-shaped structure, and the third protrusion structure includes a plurality of third sub-protrusion structures; and a third sub-opening area is arranged between the adjacent third sub-protrusion structures, and the third sub-opening area enables the third protrusion structures to be discontinuous.
Optionally, the third sub protrusion structures are the same in number and arrangement orientation as the first sub protrusion structures along the circumferential direction of the pixel opening area; the orthographic projection area of the third sub-opening area on the display substrate is smaller than that of the first sub-opening area on the display substrate; the second sub-opening area is surrounded by at least the third sub-protrusion structure.
Optionally, an orthographic projection area of one end of the first projection structure facing away from the display functional layer on the display functional layer is positioned in an orthographic projection area of one end of the first projection structure facing towards the display functional layer on the display functional layer; one side of the first protruding structure, which is close to the light emitting direction of the light emitting sub-pixel, is an inclined plane.
Optionally, the display function layer includes a plurality of pixel units, each pixel unit includes three adjacent light-emitting sub-pixels with different light-emitting colors; in the same pixel unit, orthographic projection patterns of the convex structures corresponding to the light-emitting sub-pixels with different light-emitting colors on the display functional layer are the same or partially the same.
In a second aspect, embodiments of the present application further provide a display device, including the display substrate according to the first aspect.
The beneficial technical effects brought by the technical scheme provided by the embodiment of the application at least comprise:
according to the display substrate provided by the embodiment of the application, the total reflection interface of emergent light can be increased by arranging at least one circle of convex structures, so that the light-emitting efficiency of the front surface is improved; each protruding structure comprises a plurality of sub protruding structures which are arranged along the circumferential direction of the pixel opening area, so that part of emergent light can be directly emitted through the planarization layer with higher refractive index without total reflection, the brightness of side light is increased, and the problem of large visual angle color cast is solved; the orthographic projection patterns of the convex structures corresponding to at least part of the luminous sub-pixels with the same luminous color on the display function layer are different, namely the luminous sub-pixels with the same luminous color have light-emitting angles in a plurality of different directions, so that the light-emitting uniformity of the display panel is improved.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic distribution diagram of a protrusion structure corresponding to a light-emitting sub-pixel of a display substrate according to an embodiment of the present disclosure;
FIG. 2 is a schematic cross-sectional view taken along A-A of FIG. 1 according to an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1 according to an embodiment of the present application;
fig. 4 is a schematic distribution diagram of a protrusion structure corresponding to a light-emitting sub-pixel of another display substrate according to an embodiment of the present disclosure;
fig. 5 is a schematic distribution diagram of a first protrusion structure corresponding to a light-emitting sub-pixel of a display substrate according to an embodiment of the present disclosure;
FIG. 6 is a schematic cross-sectional view taken along line C-C of FIG. 5 provided by an embodiment of the present application;
fig. 7 is a schematic distribution diagram of a first protrusion structure corresponding to a light-emitting sub-pixel of another display substrate according to an embodiment of the present disclosure;
fig. 8 is a schematic layout view of a light-emitting sub-pixel and a corresponding first protrusion structure of a display substrate according to an embodiment of the disclosure;
fig. 9 is a schematic layout view of a light-emitting sub-pixel and a corresponding first protrusion structure of another display substrate according to an embodiment of the disclosure;
fig. 10 is a schematic distribution diagram of first protrusion structures and second protrusion structures corresponding to light-emitting sub-pixels of a display substrate according to an embodiment of the present disclosure;
fig. 11 is a schematic distribution diagram of first protrusion structures and second protrusion structures corresponding to light-emitting sub-pixels of another display substrate according to an embodiment of the present disclosure;
fig. 12 is a schematic layout view of a light-emitting sub-pixel of a display substrate and corresponding first protrusion structures and second protrusion structures according to an embodiment of the present disclosure;
fig. 13 is a schematic layout view of a light-emitting sub-pixel and corresponding first and second bump structures of another display substrate according to an embodiment of the disclosure;
fig. 14 is a schematic layout view of a light-emitting sub-pixel and corresponding first and second bump structures of a display substrate according to an embodiment of the present disclosure;
fig. 15 is a schematic layout view of a light-emitting sub-pixel of a display substrate and corresponding first protrusion structures and second protrusion structures according to an embodiment of the disclosure;
fig. 16 is a schematic distribution diagram of a first protrusion structure, a second protrusion structure, and a third protrusion structure corresponding to a light-emitting sub-pixel of a display substrate according to an embodiment of the present disclosure;
FIG. 17 is a schematic cross-sectional view taken along line D-D of FIG. 16 according to an embodiment of the present application;
fig. 18 is a schematic distribution diagram of a first bump structure, a second bump structure, and a third bump structure corresponding to a light-emitting sub-pixel of another display substrate according to an embodiment of the disclosure;
fig. 19 is a schematic layout view of a light-emitting sub-pixel of a display substrate and corresponding first bump structure, second bump structure and third bump structure provided in this embodiment of the present application;
FIG. 20 is a schematic distribution diagram of a protrusion structure corresponding to a light-emitting sub-pixel of another display substrate according to an embodiment of the present disclosure;
fig. 21 is a distribution diagram of a protrusion structure corresponding to a light-emitting sub-pixel of another display substrate according to an embodiment of the present disclosure.
Wherein:
100-a light emitting sub-pixel; 100 a-pixel opening area;
110-a substrate; 120-a display functional layer; 121-drive device layer; 122 — a light emitting device layer; 123-an encapsulation layer;
200-raised structures; 200 a-sub-bump structures;
210-a first raised structure; 210 a-a first sub-bump structure; 210 b-a first sub-open area;
220-a second bump structure; 220 a-a second sub-bump structure; 220 b-a second sub-open area;
230-a third bump structure; 230 a-a third sub-bump structure; 230 b-a third sub-open area;
300-planarization layer.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
In the existing OLED display substrate, the convergence of light is realized by arranging a total reflection film layer structure on an encapsulation layer, wherein the total reflection film layer structure comprises film layers (a low refractive index film layer and a high refractive index film layer) with two refractive indexes. The low-refractive-index film layer is provided with an opening region surrounding the opening region of the sub-pixel, and the high-refractive-index film layer covers the low-refractive-index film layer and the opening region. When light emitted by the light emitting layer enters the interface of the low refractive index film layer and the high refractive index film layer, the light is totally reflected on the interface due to the difference of the refractive indexes of the materials, so that the light is converged, and the front light emitting efficiency of the OLED display substrate can be improved.
However, the inventors of the present application have found that, in the conventional total reflection film structure, only one low refractive index film layer surrounding each light emitting sub-pixel is provided, and the improvement of the light extraction efficiency is limited. When the display substrate is observed from the side surface, the display effect has certain influence, and the problem of color cast can be caused, so that the brightness of the side surface is obviously darkened, and the uniformity of light emitting is also influenced.
Therefore, embodiments of the present application provide a display substrate and a display device to solve the above-mentioned deficiencies of the prior art.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.
Referring to fig. 1 to 3, an embodiment of the present application provides a display substrate, including: a substrate 110, a display functional layer 120, a protrusion structure 200, and a planarization layer 300. The substrate 110 may be a glass substrate or a polyimide substrate. The display function layer 120 is disposed on one side of the substrate 110, and the display area of the display function layer 120 includes a plurality of light-emitting sub-pixels 100 arranged in an array, each light-emitting sub-pixel 100 has a corresponding pixel opening area 100a, and the pixel opening area 100a represents an effective light-emitting area of the light-emitting sub-pixel 100. The light emitting sub-Pixel 100 in the present embodiment is exemplified by a standard RGB Pixel, and a Pixel in fig. 1 represents one light emitting sub-Pixel.
It should be noted that the display function layer 120 in the embodiment of the present application has a normal light emitting display function, and the display function layer 120 may specifically include a film layer structure, such as a driving device layer 121, a light emitting device layer 122, and an encapsulation layer 123, which are located on the substrate 110.
The light emitting sub-pixel 100 is provided with at least one circle of protruding structures 200 on a side away from the display function layer 120, and the at least one circle of protruding structures 200 is located above the light emitting sub-pixel 100, which may be regarded as that the light emitting sub-pixel 100 corresponds to the at least one circle of protruding structures 200 above the light emitting sub-pixel 100 in this embodiment of the application. In this embodiment, "above the light-emitting sub-pixel 100" may be regarded as a side of the display function layer 120 away from the substrate 110, and the protrusion structure 200 is specifically disposed on a side of the encapsulation layer 123 included in the display function layer 120 away from the substrate 110.
Specifically, as shown in fig. 1, the protrusion structure 200 includes a plurality of sub-protrusion structures 200a, and the plurality of sub-protrusion structures 200a are arranged at intervals along the circumference of the pixel opening area 100a of the light-emitting sub-pixel 100, so that a part of the emergent light of the light-emitting sub-pixel 100 can be emitted through the interval area between the adjacent sub-protrusion structures 200a, thereby increasing the brightness of the emergent light at the side of the display substrate, and alleviating the color shift problem at large viewing angles.
Further, in all the light emitting sub-pixels 100 with the same light emitting color, the orthographic projection patterns of the protrusion structures 200 corresponding to at least two light emitting sub-pixels 100 on the display function layer 120 are different, and equivalently, the protrusion structures 200 above at least some of the light emitting sub-pixels 100 in each light emitting sub-pixel 100 with the same light emitting color are different, so that the problem that the light brightness of the side surface of the display panel in a certain direction is too large or the light brightness of the side surface of the display panel in a certain direction is too small can be avoided.
For example: for all the red light emitting sub-pixels 100(R sub-pixels), the orthographic projection patterns of the protrusion structures 200 corresponding to at least two R sub-pixels on the display function layer 120 are different. Referring to fig. 1 and 4, assuming that the emission colors of the corresponding emission sub-pixels 100 in fig. 1 and 4 are the same and are all red-emitting R sub-pixels, in two R sub-pixels, one of the R sub-pixels corresponds to the protrusion structure 200 as shown in fig. 1, and the other R sub-pixel corresponds to the protrusion structure 200 as shown in fig. 4, the orthographic projection pattern of the protrusion structure 200 shown in fig. 1 on the display functional layer 120 is different from the orthographic projection pattern of the protrusion structure 200 shown in fig. 4 on the display functional layer 120, so that the light emission uniformity can be increased.
It should be noted that the orthographic projection pattern of the protrusion structures 200 on the display functional layer 120 in the present embodiment is different because the distribution positions of the sub-protrusion structures 200a of the protrusion structures 200 and/or the size of the spacing regions between the adjacent sub-protrusion structures 200a are different.
Alternatively, in all the light-emitting sub-pixels 100 of the same light-emitting color, the corresponding protrusion structures 200 have two, three or four different orthographic projection patterns on the display functional layer 120. Two different orthographic projection patterns are exemplified in the present embodiment, and the two different orthographic projection patterns specifically refer to the structures shown in fig. 1 and 4.
Optionally, under the condition that the process conditions allow, in all the light-emitting sub-pixels 100 of the same light-emitting color, the orthographic projection pattern of the protrusion structure 200 corresponding to each light-emitting sub-pixel 100 on the display function layer 120 is different.
Further, the protruding structures 200 and the regions between the protruding structures 200 in the embodiment of the present application are covered by the planarization layer 300, and the side of the planarization layer 300 away from the substrate is flush, so as to implement the planarization function. Specifically, the planarization layer 300 covers each sub-protrusion structure 200a of the protrusion structure 200 and the spacing region between the adjacent sub-protrusion structures 200a, and a part of the outgoing light of the light-emitting sub-pixel 100 can directly exit through the planarization layer 300 through the spacing region between the adjacent sub-protrusion structures 200 a.
In order to realize the total reflection of the emergent light of the light-emitting sub-pixel 100, the refractive index of the planarization layer 300 needs to be greater than that of the protrusion structure 200, that is, a part of the emergent light of the light-emitting sub-pixel 100 is totally reflected by the interface between the side surface of the protrusion structure 200 and the planarization layer 300, thereby achieving the effect of light convergence.
Optionally, an orthographic projection area of one end of the projection structure 200 facing away from the display functional layer 120 on the display functional layer 120 is located in an orthographic projection area of one end facing towards the display functional layer 120 on the display functional layer 120; the side of the protrusion 200 close to the light emitting direction of the light emitting sub-pixel 100 is an inclined surface. In this embodiment, the cross section of the protrusion structure 200 along the direction perpendicular to the substrate 110 is a trapezoid structure, which is stable and easy to fabricate.
Further, assuming that the angle between the side surface (inclined surface) of the protrusion structure 200 and the upper surface of the display functional layer 120 is α, the refractive index of the protrusion structure 200 (or the sub-protrusion structure 200a) is n1The refractive index of the planarization layer 300 is n2In order to realize the total reflection of the emergent light, the included angle α needs to satisfy the following condition: arcsin (n)1/n2)<α<90 degrees.
Optionally, the material of the protrusion structure 200 may be an organic material with a refractive index of 1.2-1.5, such as photoresist, and the material of the planarization layer 300 may be a combined material of zirconia and an organic carrier with a refractive index of 1.5-1.8.
It is understood that, for the whole display function layer 120, at least one circle of protrusion structures 200 may be disposed above each light-emitting sub-pixel 100, or at least one circle of protrusion structures 200 may be disposed only above a part of the light-emitting sub-pixels 100, as long as the function of converging pixel light emission and expanding a viewing angle is provided, and the manner of disposing the protrusion structures 200 above the light-emitting sub-pixels 100 is not particularly limited in this embodiment.
According to the display panel provided by the embodiment, the at least one circle of convex structures 200 is arranged, so that the total reflection interface of emergent light can be increased, and the light-emitting efficiency of the front side is improved; each convex structure 200 comprises a plurality of sub convex structures 200a arranged along the circumferential direction of the pixel opening area 100a, so that a part of emergent light can be directly emitted out through the planarization layer 300 with higher refractive index without total reflection, the brightness of side light is increased, and the problem of large visual angle color cast is alleviated; the orthographic projection patterns of the projection structures 200 corresponding to at least part of the light-emitting sub-pixels 100 in the light-emitting sub-pixels 100 with the same light-emitting color on the display function layer 120 are different, that is, the light-emitting sub-pixels 100 with the same light-emitting color have light-emitting angles in a plurality of different directions, so that the light-emitting uniformity of the display panel is improved.
In some specific embodiments, as shown in fig. 5 and 6, the display panel in this embodiment includes a ring of first protrusion structures 210.
It should be noted that the display panel in this embodiment may only include the circle of first protrusion structures 210, or may include other protrusion structures 200 besides the circle of first protrusion structures 210, which is not specifically limited in this embodiment. In the embodiment, fig. 5 illustrates that only one circle of the first protrusion structures 210 is disposed around the pixel opening area, and no other protrusion structures 200 are disposed.
Specifically, as shown in fig. 5, the first protrusion structure 210 is a discontinuous ring-shaped structure, and the first protrusion structure 210 includes a plurality of first sub-protrusion structures 210a, and the plurality of first sub-protrusion structures 210a are arranged along a circumferential direction of the pixel opening area 100a and surround the pixel opening area 100 a. A first sub-opening region 210b is disposed between two adjacent first sub-protrusion structures 210a, and the first sub-opening region 210b makes the first protrusion structures 210 discontinuous. The area of the first sub-opening region 210b is covered by the planarization layer 300, so that a part of the side light directly exits from the planarization layer 300 without total reflection, thereby alleviating the problem of color shift at a large viewing angle. The first sub-opening region 210b may be formed by an etching process, and the planarization layer 300 fills the first sub-opening region 210b while covering the first sub-protrusion structure 210 a.
It should be noted that the "annular structure" in the present embodiment does not refer to a circular annular structure alone, but needs to be adaptively set according to the projected shape of the pixel opening area 100 a. For example: assuming that the projected shape of the pixel opening area 100a on the substrate 110 is a hexagon, the corresponding ring-shaped structure is also a structure approximating a hexagon, including but not limited to a discontinuous ring-shaped hexagon structure. Assuming that the projected shape of the pixel opening area 100a on the substrate 110 is rectangular, the corresponding annular structure is also a structure similar to a rectangle, for example: the first protrusion structure 210 includes four first sub-protrusion structures 210a, and the four first sub-protrusion structures 210a are arranged along a circumferential direction of the pixel opening area 100a, as can be seen in fig. 5 and 7.
In order to improve the light-emitting uniformity of the display panel, in each light-emitting sub-pixel 100 with the same light-emitting color, the orthographic projection patterns of the first protrusion structures 210 corresponding to at least two light-emitting sub-pixels 100 on the display function layer 120 are different, that is, in all the light-emitting sub-pixels 100 with the same light-emitting color, the distribution positions of the first protrusion sub-structures 210a of the first protrusion sub-pixel 210 above at least some of the light-emitting sub-pixels 100 are different and/or the areas of the first sub-opening regions 210b between the adjacent first protrusion sub-structures 210a are different, and fig. 5 and 7 in this embodiment illustrate two different structures of the first protrusion structures 210 corresponding to the light-emitting sub-pixels 100 with the same light-emitting color.
In some alternative embodiments, as shown in fig. 8 and 9, the display function layer may be divided into a plurality of pixel units (not shown) in this embodiment, and each pixel unit includes three adjacent light-emitting sub-pixels with different light-emitting colors. For example: the adjacent R sub-pixel (red light emitting), G sub-pixel (green light emitting), and B sub-pixel (blue light emitting) are as one pixel unit.
As shown in fig. 8 and 9, in the same pixel unit, the orthographic projection patterns of the first protrusion structures 210 on the display function layer corresponding to the light-emitting sub-pixels with different light-emitting colors may all be the same, for example: as shown in the figure, the first protrusion structures 210 corresponding to the R sub-pixel, the G sub-pixel, and the B sub-pixel in the same pixel unit are all the same (i.e., the setting positions and the sizes of the sub-opening regions in the protrusion structures are all the same), and the specific setting manner of the first protrusion structures 210 may adopt the setting manner in the foregoing embodiments, and details are not repeated here.
Further, fig. 8 and 9 illustrate two standard RGB sub-pixel arrangements and corresponding schematic diagrams of the first bump structure 210, wherein adjacent R, G and B sub-pixels constitute a pixel unit. In fig. 8, every other row, the orthographic projection patterns of the first protrusion structures 210 corresponding to the light-emitting sub-pixels 100 on the display functional layer 120 are the same, and the orthographic projection patterns of the first protrusion structures 210 corresponding to the light-emitting sub-pixels in the adjacent rows on the display functional layer 120 are different. In fig. 9, in the same row of light emitting sub-pixels, the orthographic projection patterns of the first protrusion structures 210 corresponding to the pixel units in the adjacent columns on the display function layer are different; in the same row of light emitting sub-pixels, the orthographic projection patterns of the first protrusion structures 210 corresponding to the pixel units of the adjacent rows on the display functional layer are also different.
In addition, the orthographic projection patterns of the protrusion structures 200 corresponding to the light-emitting sub-pixels 100 with different light-emitting colors on the display function layer 120 may not be completely the same, for example: in the same pixel unit, the first protrusion structures 210 corresponding to the R sub-pixel and the B sub-pixel may be arranged in the same structure (see fig. 5), and the G sub-pixel corresponds to the first protrusion structures 210 in another arrangement (see fig. 7).
In some specific embodiments, as shown in fig. 10, in the display substrate provided in this embodiment, the protrusion structures 200 correspondingly disposed on the light-emitting sub-pixel 100 include a circle of first protrusion structures 210 and a circle of second protrusion structures 220 (two circles of protrusion structures 200), the first protrusion structures 210 and the second protrusion structures 220 are both located on a side of the display functional layer 120 away from the substrate 110, the second protrusion structures 220 surround the first protrusion structures 210, and the second protrusion structures 220 are located on a side of the first protrusion structures 210 away from the pixel opening area 100 a.
Optionally, the cross-section of the second protrusion structure 220 along the direction perpendicular to the substrate 110 is also a trapezoid structure.
In fig. 10, the distance between the second protrusion structure 220 and the first protrusion structure 210 may be set according to actual display requirements, and in this embodiment, the specific distance may not be limited, so as to ensure that a part of the emergent light can be totally reflected at the interface between the side surface of the second protrusion structure 220 and the planarization layer 300.
Specifically, the specific arrangement manner of the first protrusion structures 210 in the present embodiment may be set in the manner referred to fig. 5 in the above embodiment.
Further, in fig. 10, the second protrusion structure 220 is a discontinuous ring-shaped structure, and the second protrusion structure 220 includes a plurality of second sub-protrusion structures 220a, which is equivalent to the plurality of second sub-protrusion structures 220a arranged along the circumferential direction of the plurality of first sub-protrusion structures 210a, such that the second protrusion structure 220 entirely surrounds the first protrusion structure 210. A second sub-opening area 220b is disposed between the adjacent second sub-protrusion structures 220a, and the second sub-opening area 220b makes the second protrusion structures 220 discontinuous. The second sub-opening area 220b can be formed by an etching process, and the planarization layer 300 fills the second sub-opening area 220b while covering the second sub-protrusion structure 220 a.
It can be understood that, for the light-emitting sub-pixels 100 with the same light-emitting color, since the orthographic projection patterns of the first protrusion structures 210 corresponding to some of the light-emitting sub-pixels 100 on the display function layer 120 are different, the orthographic projection patterns of all the protrusion structures 200 corresponding to the part of the light-emitting sub-pixels 100 on the display function layer 120 are still different no matter whether the orthographic projection patterns of the second protrusion structures 220 corresponding to the respective light-emitting sub-pixels 100 on the display function layer 120 are the same or not.
Further, as shown in fig. 11, another arrangement manner of the second protrusion structures 220 is also illustrated in this embodiment, the first protrusion structures 210 and the second protrusion structures 220 corresponding to the light-emitting sub-pixels 100 with the same light-emitting color in this embodiment may be respectively arranged according to two manners shown in fig. 10 and 11, and of course, the arrangement manners of the two protrusion structures 200 shown in fig. 10 and 11 may also be adjusted, for example, the positions and sizes of the first sub-opening areas 210b and/or the second sub-opening areas 220b are changed, so that the protrusion structures 200 have more arrangement manners, and the light-emitting uniformity is further improved.
In this embodiment, two circles of the protrusion structures 200 which are discontinuously arranged are arranged around the light-emitting sub-pixel 100, which is equivalent to increase the number of total reflection interfaces of the emergent light of the light-emitting sub-pixel 100, thereby improving the light-emitting efficiency of the front surface; because the orthographic projection patterns of the convex structures 200 corresponding to the light-emitting sub-pixels 100 with the same light-emitting color on the display functional layer 120 are different, the light-emitting color is more uniform, and the display performance of the display substrate is improved.
Alternatively, with continued reference to fig. 10 and 11, the second sub-protrusion structures 220a and the first sub-protrusion structures 210a are alternately arranged along the circumferential direction of the corresponding pixel opening area 100a, that is, for one pixel opening area 100a, the second sub-protrusion structures 220a and the first sub-opening areas 210b are disposed along the circumferential direction of the pixel opening area 100a, and the second sub-opening areas 220b and the first sub-protrusion structures 210a are also disposed along the circumferential direction of the pixel opening area 100 a.
Specifically, the first sub-opening area 210b is at least surrounded by the second sub-protrusion structure 220a, that is, the second sub-protrusion structure 220a corresponds to the first sub-opening area 210b, and two ends of the second sub-protrusion structure 220a may overlap with the orthogonal projection portions of the two adjacent first sub-protrusion structures 210a in the plane perpendicular to the display function layer, so that the uneven brightness of the light in the same direction may be avoided.
Assuming that when the second sub-aperture area 220b coincides with the first sub-aperture area 210b, no total reflection occurs to the light beams at the same azimuth angle, resulting in a decrease in the brightness of the light beams at the azimuth angle; and all the light rays at the coincident azimuth angle of the first sub-protrusion structure 210a and the second sub-protrusion structure 220a are totally reflected, so that the brightness of the light rays at the azimuth angle is increased, and the uniformity of the light output of the whole display substrate is affected.
Note that the "azimuth angle" in the embodiment of the present application is set with the center of the pixel opening area 100a as the origin, and the azimuth angle is set along the circumferential direction of the pixel opening area 100a, for example: the azimuth angle may be set to a plurality of intervals according to the number and size of the sub-protrusion structures 200a, and different intervals correspond to different sub-protrusion structures 200a or sub-opening regions.
In this embodiment, a part of the emergent light rays with the same azimuth angle are directly emitted from the first sub-opening region 210b, and another part of the emergent light rays can be emitted by total reflection through the interface between the second sub-protrusion structure 220a and the planarization layer 300, so that the emergent light rays with different azimuth angles are more uniform, and the problem of large-viewing-angle color cast of the display panel is reduced.
As shown in fig. 12 to 14, the light-emitting sub-pixels 100 are arranged in a standard RGB manner as an example, and in the same pixel unit (illustrated as adjacent R, G and B sub-pixels), the orthographic projection patterns of the protrusion structures 200 on the display function layer 120 corresponding to the light-emitting sub-pixels 100 with different light-emitting colors may all be the same, for example: the respective corresponding protrusion structures above the R sub-pixel, the G sub-pixel and the B sub-pixel in the same pixel unit are the same (that is, the setting position and the size of the word opening region in the protrusion structure are the same), and the specific setting manner of the protrusion structure may adopt the setting manner in the foregoing embodiments, and details are not repeated here.
In some embodiments, as shown in fig. 10, 11 and 12, in fig. 12, the light-emitting sub-pixels 100 are arranged in a standard RGB manner as an example, the orthographic projection patterns of the protrusion structures on the display function layer corresponding to all the light-emitting sub-pixels 100 in the same row are the same, and the protrusion structures corresponding to the light-emitting sub-pixels 100 are arranged in the same manner every other row.
In some embodiments, as shown in fig. 10, 11 and 13, in fig. 13, the light-emitting sub-pixels 100 are arranged in a standard RGB manner as an example, the orthographic projection patterns of the protrusion structures on the display function layer corresponding to all the light-emitting sub-pixels 100 in the same row are the same, and the protrusion structures corresponding to every two rows of the light-emitting sub-pixels 100 are arranged in the same manner. In addition, the convex structures corresponding to the light-emitting sub-pixels 100 every three or four rows may be arranged in the same manner in this embodiment.
In some embodiments, as shown in fig. 10, 11 and 14, in fig. 14, the light-emitting sub-pixels 100 are arranged in a standard RGB manner as an example, in the same row of light-emitting sub-pixels 100, the orthographic projection patterns of the first protrusion structures 210 on the display functional layer corresponding to the pixel units in adjacent columns are different, and the orthographic projection patterns of the second protrusion structures 220 on the display functional layer are also different; in the same column of light emitting sub-pixels 100, the orthographic projection patterns of the first protrusion structures 210 corresponding to the pixel units of the adjacent rows on the display functional layer are also different, and the orthographic projection patterns of the corresponding second protrusion structures 220 on the display functional layer are also different.
In some embodiments, in the same pixel unit, the orthographic projection patterns of the convex structures (including the first convex structure 210 and the second convex structure 220) corresponding to the light-emitting sub-pixels 100 with different light-emitting colors on the display function layer 120 may be partially the same, for example: as shown in fig. 10, 11 and 15, for the same pixel unit in fig. 15, the same arrangement manner may be adopted for the convex structures above the R sub-pixel and the B sub-pixel, and another different arrangement manner may be adopted for the corresponding convex structure above the G sub-pixel.
In some specific embodiments, as shown in fig. 16 and 17, in the display substrate provided in this embodiment, the protrusion structures 200 correspondingly disposed on the light-emitting sub-pixels 100 are disposed in three circles, that is, the innermost circle of the first protrusion structures 210, the middle circle of the second protrusion structures 220, and the outermost circle of the third protrusion structures 230.
Alternatively, the third protrusion structures 230 have a trapezoidal structure in a cross-section along a direction perpendicular to the substrate 110.
Specifically, the first protrusion structure 210, the second protrusion structure 220 and the third sub-protrusion structure 230a are located on a side of the display function layer 120 away from the substrate 110, the second protrusion structure 220 surrounds the first protrusion structure 210, the third protrusion structure 230 surrounds the second protrusion structure 220, and the third protrusion structure 230 is located on a side of the second protrusion structure 220 away from the pixel opening area 100 a.
The specific structures and arrangement of the first protrusion structures 210 and the second protrusion structures 220 in this embodiment can refer to the content of the foregoing embodiments, and are not repeated herein.
Further, in order to further increase the light emitting uniformity, the offset distance between the third protrusion structure 230 and the second protrusion structure 220 is equal to the offset distance between the second protrusion structure 220 and the first protrusion structure 210, and the specific offset may be set according to the size of the pixel opening area 100a and the actual display requirement, which is not specifically required in this embodiment.
Alternatively, the third bump structure 230 is a discontinuous ring-shaped structure, the third bump structure 230 includes a plurality of third sub-bump structures 230a, and the plurality of third sub-bump structures 230a are arranged at intervals along the circumference of the plurality of second sub-bump structures 220a, such that the third bump structure 230 entirely surrounds the second bump structure 220. A third sub-opening area 230b is disposed between two adjacent third sub-protrusion structures 230a, and the third sub-opening area 230b makes the third protrusion structures 230 discontinuous. The third sub-opening area 230b can be prepared by an etching process, and the planarization layer 300 fills the third sub-opening area 230b while covering the third sub-protrusion structure 230 a.
It can be understood that, for the light-emitting sub-pixels 100 with the same light-emitting color, since the orthographic projection patterns of the first protrusion structures 210 and the second protrusion structures 220 corresponding to a part of the light-emitting sub-pixels 100 on the display function layer 120 are different, the orthographic projection patterns of all the protrusion structures 200 corresponding to the part of the light-emitting sub-pixels 100 on the display function layer 120 are still different no matter whether the orthographic projection patterns of the third protrusion structures 230 corresponding to the respective light-emitting sub-pixels 100 on the display function layer 120 are the same or not.
Further, as shown in fig. 18, in the present embodiment, another arrangement manner of the third protrusion structures 230 is also illustrated, and the first protrusion structure 210, the second protrusion structure 220, and the third protrusion structure 230 corresponding to the light-emitting sub-pixels 100 with the same light-emitting color in the present embodiment may be respectively arranged according to two manners shown in fig. 16 and 18, and of course, in the present embodiment, the arrangement manners of the two protrusion structures 200 shown in fig. 16 and 18 may also be adjusted, for example, the positions and the sizes of the second sub-opening area 220b and/or the third sub-opening area 230b are changed, so that the protrusion structures 200 have more arrangement manners, and the light-emitting uniformity is further improved.
In some embodiments, as shown in fig. 19, in the pixel units in the same row (only one pixel unit is illustrated in each row in fig. 19), the orthographic projection patterns of the protrusion structures 200 corresponding to the light-emitting sub-pixels 100(R sub-pixel, G sub-pixel, and B sub-pixel) on the display function layer 120 are the same, and the protrusion structures 200 corresponding to the light-emitting sub-pixels 100 in different rows are designed in different structures, so that a plurality of light-emitting angle designs are formed to improve the light-emitting uniformity of the display substrate.
In some embodiments, in the same pixel unit, the orthographic projection patterns of the protrusion structures 200 on the display function layer 120 corresponding to the light-emitting sub-pixels 100 with different light-emitting colors may be partially the same, for example: in the same pixel unit, the R sub-pixel and the bump structure 200 above the B sub-pixel may be arranged in the same manner, and the corresponding bump structure 200 above the G sub-pixel may be arranged in a different manner (not shown in fig. 19).
It should be noted that the bump structure 200 in the present embodiment refers to an integral structure formed by the first bump structure 210, the second bump structure 220, and the third bump structure 230.
In this embodiment, three circles of the protrusion structures 200 which are discontinuously arranged are arranged around the light-emitting sub-pixel 100, so that the side light-emitting angle range of the emergent light of the light-emitting sub-pixel 100 is further increased, and meanwhile, the total reflection interface is further increased, so that the light-emitting efficiency of the front surface is improved; because the orthographic projection patterns of the convex structures 200 corresponding to the light-emitting sub-pixels 100 with the same light-emitting color on the display functional layer 120 are different, the light-emitting color is more uniform, and the display performance of the display substrate is improved.
Alternatively, with continued reference to fig. 16 and 18, the third sub-protrusion structures 230a and the first sub-protrusion structures 210a have the same number and arrangement orientation along the circumferential direction of the pixel opening area 100a, that is, the third sub-protrusion structures 230a can be regarded as structures obtained by offsetting the first sub-protrusion structures 210a away from the pixel opening area 100a, and the third sub-protrusion structures 230a with the same orientation have the same orthographic projection pattern of the first sub-protrusion structures 210a on the display functional layer 120, and have only a size difference therebetween.
Specifically, for the same azimuth angle, the orthographic area of the third sub-protrusion structure 230a on the display substrate is larger than that of the first sub-opening region 210b on the display substrate, while the orthographic area of the third sub-opening region 230b on the display substrate is smaller than that of the first sub-opening region 210b on the display substrate.
Further, the second sub opening area 220b is surrounded by at least the third sub protrusion structure 230a, i.e., the third sub protrusion structure 230a and the second sub opening area 220b are disposed along the same direction of the circumference of the pixel opening area 100a, and the third sub opening area 230b and the second sub protrusion structure 220a are also disposed along the same direction of the circumference of the pixel opening area 100 a. Both ends of the third sub-protrusion structure 230a may partially overlap with two adjacent second sub-protrusion structures 220a, so that uneven brightness of light in the same direction may be avoided. Suppose that when the third sub-aperture area 230b coincides with the second sub-aperture area 220b and the first sub-aperture area 210b, no total reflection occurs for the light at the same azimuth angle, resulting in a decrease in the brightness of the light at the azimuth angle; all the light rays at the coincident azimuth angle of the first sub-protrusion structure 210a, the second sub-protrusion structure 220a and the third sub-protrusion structure 230a are totally reflected, so that the brightness of the light rays at the azimuth angle is increased, and the uniformity of the light output of the whole display substrate is affected.
In this embodiment, a part of the outgoing light rays with the same azimuth angle directly exit from the first sub-open region 210b and the third sub-open region 230b, and the other part of the outgoing light rays can exit through the total reflection at the interface between the second sub-protrusion structure 220a and the planarization layer 300; or, a part of the emergent light rays at the same azimuth angle are totally reflected by the interfaces between the first sub-protrusion structure 210a and the third sub-protrusion structure 230a and the planarization layer 300 and then emitted, and the other part of the emergent light rays can be directly emitted through the second sub-opening area 220b, so that the emergent light rays at all azimuth angles are more uniform, and the problem of large-viewing-angle color cast of the display panel is reduced; meanwhile, because the projection patterns of the protrusion structures 200 corresponding to the light-emitting sub-pixels 100 with the same light-emitting color are different, light with the same light-emitting color can be emitted from all angles of the side surface, so that the light-emitting uniformity is improved while the light-emitting brightness of the side surface is improved.
In some embodiments, as shown in fig. 20, the raised structures 200 are tiled over the entire area except for the pixel opening area 100a, and opening areas are provided for different orientations around the light-emitting sub-pixel, and the opening area corresponding to the front tiled raised structure 200 is covered by the planarization layer. Wherein, the gray part is the convex structure 200, and the white part is the opening region. The distribution of the protrusion structures 200 shown in fig. 20 can be regarded as that each sub-protrusion structure of a circle of protrusion structures 200 is arranged around the pixel opening area, and the sub-protrusion structures corresponding to all the light-emitting sub-pixels are connected into an integral structure, and the structure can be prepared by removing the white portion in the figure through a full-surface film forming and patterning process.
In some embodiments, the orthographic shape of the sub-projection structure 200a of the projection structure on the display function layer is not limited to the long bar shape in fig. 1 and 4, but may include a circle, an ellipse, a triangle, or the like. As shown in fig. 21, fig. 21 illustrates an example in which the orthographic shape of the sub-projection structure 200a on the display functional layer is a circle.
It should be noted that the light-emitting sub-pixels in the embodiment of the present application are not limited to the standard RGB arrangement, but may also be applied to the pixel arrangement modes such as the "winter and rain arrangement", the "pearl arrangement", and the "diamond arrangement", and the like, and the design structures of the protrusion structures corresponding to these other pixel arrangement modes may be adjusted according to the projection shape of the pixel opening area 100a, and the specific arrangement mode of the protrusion node in this embodiment is not described in detail again.
Based on the same inventive concept, the embodiment of the present application further provides a display device, which includes the display substrate described in the embodiment of the present application. The display device can be a mobile phone, a tablet computer, a display or an electronic device of a television.
The display device provided by the embodiment comprises the display substrate in the embodiment, and the display substrate is provided with at least one circle of convex structures, so that the total reflection interface of emergent light can be increased, and the light-emitting efficiency of the front surface is improved; each protruding structure comprises a plurality of sub protruding structures which are arranged along the circumferential direction of the pixel opening area, so that part of emergent light can be directly emitted through the planarization layer with higher refractive index without total reflection, the brightness of side light is increased, and the problem of large visual angle color cast is solved; the orthographic projection patterns of the convex structures corresponding to at least part of the luminous sub-pixels with the same luminous color on the display function layer are different, namely the luminous sub-pixels with the same luminous color have light-emitting angles in a plurality of different directions, so that the light-emitting uniformity of the display panel is improved.
In summary, the embodiments of the present application have at least the following beneficial effects:
at least one circle of convex structures are arranged above the luminous sub-pixels of the display substrate, so that the total reflection interface of emergent light can be increased, and the light-emitting efficiency of the front surface is improved; each protruding structure comprises a plurality of sub protruding structures which are arranged along the circumferential direction of the pixel opening area, so that part of emergent light can be directly emitted through the planarization layer with higher refractive index without total reflection, the brightness of side light is increased, and the problem of large visual angle color cast is solved; the orthographic projection patterns of the convex structures corresponding to at least part of the luminous sub-pixels with the same luminous color on the display function layer are different, namely the luminous sub-pixels with the same luminous color have light-emitting angles in a plurality of different directions, so that the light-emitting uniformity of the display panel is improved.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (10)
1. A display substrate, comprising:
a substrate;
the display function layer is positioned on one side of the substrate and comprises a plurality of light-emitting sub-pixels which are arranged in an array mode, and the light-emitting sub-pixels are provided with pixel opening areas;
at least one circle of convex structures are arranged on one side of the light-emitting sub-pixel, which is far away from the display function layer, and each convex structure comprises a plurality of sub-convex structures which are arranged at intervals along the circumferential direction of the pixel opening area; in the light emitting sub-pixels with the same light emitting color, at least two of the light emitting sub-pixels respectively correspond to the projection structures which have different orthographic projection patterns on the display function layer;
a planarization layer covering the raised structures, the planarization layer having a refractive index greater than the refractive index of the raised structures.
2. The display substrate of claim 1, comprising a ring of first raised structures; the first protrusion structure is a discontinuous annular structure and comprises a plurality of first sub-protrusion structures, and the pixel opening area is surrounded by the plurality of first sub-protrusion structures; a first sub-opening area is arranged between the adjacent first sub-protrusion structures, and the first sub-opening area enables the first protrusion structures to be discontinuous;
in each light-emitting sub-pixel with the same light-emitting color, at least two orthographic projection patterns of the first protrusion structures corresponding to the light-emitting sub-pixels on the display function layer are different.
3. The display substrate of claim 2, comprising a ring of second raised structures surrounding the first raised structures, the second raised structures being located on a side of the first raised structures away from the pixel opening area;
the second protruding structure is a discontinuous annular structure and comprises a plurality of second sub-protruding structures, a second sub-opening area is arranged between every two adjacent second sub-protruding structures, and the second protruding structures are discontinuous due to the second sub-opening areas.
4. The display substrate of claim 3, wherein the second sub-protrusion structures are alternately arranged with the first sub-protrusion structures along the circumferential offset of the corresponding pixel opening area, and the first sub-opening area is surrounded by at least the second sub-protrusion structures.
5. The display substrate according to claim 3 or 4, further comprising a ring of third protruding structures surrounding the second protruding structures, wherein the third protruding structures are located on a side of the second protruding structures away from the pixel opening area;
the offset distance between the third bump structure and the second bump structure is equal to the offset distance between the second bump structure and the first bump structure.
6. The display substrate according to claim 5, wherein the third protrusion structure is a discontinuous ring-shaped structure, and the third protrusion structure comprises a plurality of third sub-protrusion structures;
and a third sub-opening area is arranged between the adjacent third sub-protrusion structures, and the third sub-opening area enables the third protrusion structures to be discontinuous.
7. The display substrate according to claim 6, wherein the third sub-projection structures are the same in number and arrangement orientation as the first sub-projection structures along a circumferential direction of the pixel opening area;
the orthographic projection area of the third sub-opening area on the display substrate is smaller than that of the first sub-opening area on the display substrate;
the second sub-opening area is surrounded by at least the third sub-protrusion structure.
8. The display substrate according to any one of claims 1 to 4, wherein an orthographic projection area of an end of the first projection structure facing away from the display functional layer on the display functional layer is located within an orthographic projection area of an end facing the display functional layer on the display functional layer;
one side of the first protruding structure, which is close to the light emitting direction of the light emitting sub-pixel, is an inclined plane.
9. The display substrate according to claim 1, wherein the display function layer comprises a plurality of pixel units, each pixel unit comprising three adjacent light-emitting sub-pixels having different light-emitting colors;
in the same pixel unit, orthographic projection patterns of the convex structures corresponding to the light-emitting sub-pixels with different light-emitting colors on the display functional layer are the same or partially the same.
10. A display device comprising the display substrate according to any one of claims 1 to 9.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122080A (en) * | 2021-11-04 | 2022-03-01 | 武汉华星光电半导体显示技术有限公司 | Display panel and mobile terminal |
| CN114447253A (en) * | 2022-02-08 | 2022-05-06 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof and display device |
| WO2023060908A1 (en) * | 2021-10-14 | 2023-04-20 | 云谷（固安）科技有限公司 | Display panel and display apparatus |
| CN116437724A (en) * | 2023-03-31 | 2023-07-14 | 惠科股份有限公司 | Display panel and display device |
| WO2023184477A1 (en) * | 2022-04-01 | 2023-10-05 | 京东方科技集团股份有限公司 | Display substrate and display device |
| WO2023245337A1 (en) * | 2022-06-20 | 2023-12-28 | 京东方科技集团股份有限公司 | Display panel and display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832227A (en) * | 2011-06-13 | 2012-12-19 | 东莞万士达液晶显示器有限公司 | Organic electroluminescent display device |
| US20130076236A1 (en) * | 2011-09-28 | 2013-03-28 | Canon Kabushiki Kaisha | Display apparatus |
| US20190115404A1 (en) * | 2017-10-12 | 2019-04-18 | Samsung Display Co., Ltd. | Display device |
| CN110783479A (en) * | 2018-07-27 | 2020-02-11 | 乐金显示有限公司 | Display device |
| CN111508999A (en) * | 2018-12-17 | 2020-08-07 | 三星显示有限公司 | Organic light emitting display device |
| CN111668384A (en) * | 2020-05-06 | 2020-09-15 | 湖北长江新型显示产业创新中心有限公司 | Display panel, manufacturing method thereof and display device |
| CN111697037A (en) * | 2020-06-04 | 2020-09-22 | 上海天马有机发光显示技术有限公司 | Organic light-emitting display panel and display device |
-
2021
- 2021-04-29 CN CN202110476366.6A patent/CN113193152B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832227A (en) * | 2011-06-13 | 2012-12-19 | 东莞万士达液晶显示器有限公司 | Organic electroluminescent display device |
| US20130076236A1 (en) * | 2011-09-28 | 2013-03-28 | Canon Kabushiki Kaisha | Display apparatus |
| US20190115404A1 (en) * | 2017-10-12 | 2019-04-18 | Samsung Display Co., Ltd. | Display device |
| CN110783479A (en) * | 2018-07-27 | 2020-02-11 | 乐金显示有限公司 | Display device |
| CN111508999A (en) * | 2018-12-17 | 2020-08-07 | 三星显示有限公司 | Organic light emitting display device |
| CN111668384A (en) * | 2020-05-06 | 2020-09-15 | 湖北长江新型显示产业创新中心有限公司 | Display panel, manufacturing method thereof and display device |
| CN111697037A (en) * | 2020-06-04 | 2020-09-22 | 上海天马有机发光显示技术有限公司 | Organic light-emitting display panel and display device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023060908A1 (en) * | 2021-10-14 | 2023-04-20 | 云谷（固安）科技有限公司 | Display panel and display apparatus |
| CN114122080A (en) * | 2021-11-04 | 2022-03-01 | 武汉华星光电半导体显示技术有限公司 | Display panel and mobile terminal |
| CN114447253A (en) * | 2022-02-08 | 2022-05-06 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof and display device |
| CN114447253B (en) * | 2022-02-08 | 2024-03-19 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof and display device |
| WO2023184477A1 (en) * | 2022-04-01 | 2023-10-05 | 京东方科技集团股份有限公司 | Display substrate and display device |
| WO2023245337A1 (en) * | 2022-06-20 | 2023-12-28 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN116437724A (en) * | 2023-03-31 | 2023-07-14 | 惠科股份有限公司 | Display panel and display device |
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|---|---|
| CN113193152B (en) | 2023-05-12 |
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