CN111129098A - Organic light-emitting display panel and device - Google Patents
Organic light-emitting display panel and device Download PDFInfo
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- CN111129098A CN111129098A CN201911401593.1A CN201911401593A CN111129098A CN 111129098 A CN111129098 A CN 111129098A CN 201911401593 A CN201911401593 A CN 201911401593A CN 111129098 A CN111129098 A CN 111129098A
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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
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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
- H10K59/80—Constructional details
- H10K59/875—Arrangements for extracting light from the devices
- H10K59/879—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
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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
Abstract
The embodiment of the invention discloses an organic light-emitting display panel and a device, wherein at least part of the area of the organic light-emitting display panel is a bent surface or a curved surface, and the organic light-emitting display panel is provided with a front view surface; the organic light emitting display panel comprises a plurality of arc-shaped organic light emitting units, each arc-shaped organic light emitting unit is provided with an arc-shaped light emergent surface, and the central axis of each arc-shaped organic light emitting unit is perpendicular to the front view surface. The embodiment of the invention solves the problem of uneven display brightness of the existing curved-surface organic display panel, ensures that the display brightness of the organic light-emitting display panel is consistent when the organic light-emitting display panel is observed at all angles, avoids color cast, improves the brightness uniformity of the display panel and improves the display quality.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to an organic light-emitting display panel and an organic light-emitting display device.
Background
With the development of display technology, display panels, such as liquid crystal display panels, organic light emitting display panels, electronic paper display panels, and the like, are increasingly used. The Organic Light Emitting display panel includes an Organic Light Emitting Diode (OLED) display panel, and the OLED display panel has advantages of self-luminescence, wide viewing angle, almost infinite contrast, low power consumption, and high response speed. In addition, the organic light emitting display panel can be manufactured as a flexible display panel, which is easily bent.
In the case of a curved organic light emitting display panel or an organic light emitting display panel in which a partial region is curved, the front surface of the entire organic light emitting display panel is used as a front surface, and when an observer views the panel from the front surface, the viewing angle of the observer with respect to the curved position changes according to the curved position. And the larger the angle between the tangent plane and the front view plane at the bending position is, the larger the view angle of the user is.
In the conventional organic light emitting display panel, the organic light emitting units are generally laid on the array substrate, that is, the organic light emitting units are bent along with the bending state of the array substrate, and when the organic light emitting units are observed at an oblique viewing angle, the brightness of the organic light emitting units is attenuated to a certain extent compared with a front viewing angle. Also, the larger the viewing angle, the more the brightness is attenuated. Therefore, when the organic light emitting display panel with the curved edge is observed on a front view, the brightness of the edge area is inconsistent with the brightness of the central area, the non-uniformity of the display screen is serious, and the display quality of the organic light emitting display panel is reduced.
Disclosure of Invention
The invention provides an organic light-emitting display panel and an organic light-emitting display device, which are used for improving the brightness uniformity of the display panel and improving the display quality.
In a first aspect, an embodiment of the present invention provides an organic light emitting display panel, where at least a partial region of the organic light emitting display panel is a bent surface or a curved surface, and the organic light emitting display panel has a front view surface;
the organic light emitting display panel comprises a plurality of arc-shaped organic light emitting units, each arc-shaped organic light emitting unit is provided with an arc-shaped light emergent surface, and the central axis of each arc-shaped organic light emitting unit is perpendicular to the front view surface.
In a second aspect, embodiments of the present invention further provide an organic light emitting display device, including the organic light emitting display panel according to any one of the first aspect.
The embodiment of the invention provides an organic light-emitting display panel and a device, wherein at least part of the area of the organic light-emitting display panel is a bent surface or a curved surface, the organic light-emitting units are arranged to be arc-shaped organic light-emitting units, each arc-shaped organic light-emitting unit is ensured to have an arc light emergent surface, and the central axis of each arc-shaped organic light-emitting unit is perpendicular to a front viewing surface.
Drawings
Fig. 1 is a schematic structural diagram of a conventional organic light emitting display panel;
fig. 2 is a schematic structural diagram of an organic light emitting display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another organic light emitting display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an organic light emitting display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an organic light emitting display panel according to an embodiment of the present invention;
fig. 6 is a flowchart of a method for manufacturing an organic light emitting display panel according to an embodiment of the present invention;
FIG. 7 is a flow chart of a method for fabricating the organic light emitting display panel shown in FIG. 6;
fig. 8 is a schematic structural diagram of another organic light emitting display panel according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another organic light emitting display panel according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another organic light emitting display panel according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural view of a conventional organic light emitting display panel, and referring to fig. 1, the side edges of the organic light emitting display panel are bent to form bent side regions 100, and a central region of the organic light emitting display panel is a flat structure and is a front display region 200. The organic light emitting display panel has a front viewing surface 1 parallel to the organic light emitting display panel of the front display area 200, and when the organic light emitting display panel is viewed from the front viewing surface 1, the user's sight is perpendicular to the organic light emitting display panel of the front display area 200. Specifically, the organic light emitting display panel includes an array substrate 10, and the organic light emitting units 20 are disposed in both the front display area 200 and the bent side area 100 of the array substrate 10, and since the organic light emitting units 20 are disposed on the array substrate 10, the positive emission angle of the organic light emitting units 20 is perpendicular to the array substrate 10, and when the organic light emitting units 20 in the bent side area 100 are viewed from the front view 1, the viewing angle of a user is substantially an oblique viewing angle. Therefore, in the picture obtained by the user, the display brightness of the bent side area 100 is lower than that of the front display area 200, and the display picture has obvious unevenness, so that the display quality of the display panel is reduced. In addition, since the organic light emitting unit 20 in the bent side area 100 is not parallel to the front view plane 1, when the light is emitted to the front view plane 1, the path length of the light passing through the inside of the organic light emitting unit 20 is changed compared to the path length of the light emitted by the organic light emitting unit 20, that is, the microcavity length of the light emitted by the organic light emitting unit 20 in the bent side area 100 to the front view plane 1 is changed, so that when the display panel is observed on the front view plane 1, the organic light emitting unit in the bent side area 100 has a color shift to some extent.
In view of the above problems of the conventional organic light emitting display panel, an embodiment of the present invention provides an organic light emitting display panel. At least part of the area of the organic light-emitting display panel is a bent surface or a curved surface, and the organic light-emitting display panel is provided with a front view surface; the organic light emitting display panel comprises a plurality of arc-shaped organic light emitting units, each arc-shaped organic light emitting unit is provided with an arc-shaped light emergent surface, and the central axis of each arc-shaped organic light emitting unit is perpendicular to the front view surface.
Wherein, organic light emitting unit is the rete structure itself, and the organic light emitting unit of arc indicates that the organic light emitting unit rete structure after the formation has certain radian, compares smooth organic light emitting unit, and the organic light emitting unit of arc can be towards a plurality of directions light-emitting to form curved light emitting face. The film layer structure of the organic light-emitting unit can be an arc-shaped protruding structure or an arc-shaped concave structure because of being of an arc-shaped structure, and the central axis of the arc-shaped structure represents the protruding direction of the arc-shaped protruding structure or the opening direction of the arc-shaped concave structure, namely the positive light-emitting direction of a single arc-shaped organic light-emitting unit. The central axes of all the arc-shaped organic light-emitting units are perpendicular to the front viewing surface, so that the consistency of the brightness of the light emitted from the front viewing surface by the organic light-emitting units at all the positions of the display panel is ensured, and the uniformity of the brightness of the picture when a user watches the display panel is also ensured. In addition, when the organic light-emitting display panel is observed at a certain position, the light-emitting direction of each organic light-emitting unit is consistent, and the length of the micro-cavity for emitting light can be ensured to be consistent, so that the generation of color cast can be avoided.
In the organic light-emitting display panel provided by the embodiment of the invention, at least part of the area is a bent surface or a curved surface, the organic light-emitting units are arranged to be arc-shaped organic light-emitting units, each arc-shaped organic light-emitting unit is ensured to have an arc-shaped light emergent surface, the central axis of each arc-shaped organic light-emitting unit is perpendicular to the front viewing surface, the light emergent brightness of the organic light-emitting units at each position of the organic light-emitting display panel on the front viewing surface is ensured to be consistent, and the light emergent microcavity length of the organic light-emitting units when the organic light-emitting display panel is observed at each angle is also ensured to be consistent, so that the generation of color cast is avoided, the consistency of the display brightness is also.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
For different application scenarios, the shape and structure of the organic light emitting display panel are different, and the following embodiment of the present invention takes two types of organic light emitting display panels as examples to clearly and completely describe the technical solution of the embodiment of the present invention. Fig. 2 is a schematic structural diagram of an organic light emitting display panel according to an embodiment of the present invention, and referring to fig. 2, the organic light emitting display panel includes an array substrate 10, an arc-shaped organic light emitting unit 21 is disposed on the array substrate 21, and the array substrate 10 includes a bent side area 100 and a front display area 200; the included angle between the plane of the array substrate 10 in the bent side area 100 and the plane of the array substrate 10 in the front display area 200 is psi, and psi is greater than or equal to 0 and less than or equal to 90 degrees; in the bent side area 100, an included angle between a central axis of the arc-shaped organic light emitting unit 21 and a plane where the array substrate 10 is located is θ; wherein theta is 90-psi.
It is obvious that in the organic light emitting display panel shown in fig. 2, the array substrate 10 in the bent side region 100 is a bent surface of the organic light emitting display panel, and an included angle ψ between the array substrate 10 in the front display region 200 and the bent surface is a bending angle. At this time, the central axis of the arc-shaped organic light emitting unit 21 disposed in the bent side area 100 is perpendicular to the front view plane 1 of the organic light emitting display panel, and the central axis of the arc-shaped organic light emitting unit 21 is not perpendicular to the array substrate 10 in the area. Specifically, when the arc-shaped organic light emitting units 21 are disposed in the bent side area 100, an included angle θ between a central axis of the arc-shaped organic light emitting unit 21 and a plane of the array substrate 10 in the region is required to be ensured, and as can be seen from the geometric relationship shown in the figure, θ + ψ is 90 °. Taking the bending angle ψ of the array substrate 10 in the bent side region 100 as an example of 45 °, when the arc-shaped organic light emitting unit 21 is formed in the bent side region 100, it is required to ensure that the central axis thereof is 45 ° with respect to the plane of the array substrate 10 in the region where the central axis is located.
Fig. 3 is a schematic structural diagram of another organic light emitting display panel according to an embodiment of the present invention, referring to fig. 3, the organic light emitting display panel further includes an array substrate 10, the arc-shaped organic light emitting units 21 are disposed on the array substrate 10, the array substrate 10 is a curved surface, an included angle between a section of the array substrate 10 where any one of the arc-shaped organic light emitting units 21 is located and a front view plane 1 is α, 0 ≤ α ≤ 90 °, and an included angle between a central axis of the arc-shaped organic light emitting unit 21 and a plane where the array substrate 10 is located is β, where β is 90 ° - α.
Since some display devices need to be in a curved state in a specific application scene such as vehicle-mounted, the display panel needs to form a curved array substrate 10 when being manufactured, for the curved array substrate 10, the central axis of the arc-shaped organic light emitting unit 21 disposed thereon is perpendicular to the front viewing surface 1 of the display panel, at this time, the included angle β between the central axis of the arc-shaped organic light emitting unit 21 and the plane where the array substrate 10 is located is determined by the included angle α between the array substrate 10 and the front viewing surface 1, and the geometric relationship as shown in the figure is α + β equal to 90 °.
As shown in fig. 2 and 3, the arc-shaped organic light emitting unit 21 has an arc-shaped protruding structure, and the protruding light emitting surface formed by the protruding structure enables the display panel to have a wider viewing angle range. In addition, the arc-shaped organic light-emitting unit can be arranged to be in an arc-shaped pit structure.
Fig. 4 is a schematic structural diagram of an organic light emitting display panel according to an embodiment of the present invention, and referring to fig. 4, the organic light emitting display panel includes an array substrate 10, an arc-shaped organic light emitting unit 21 is disposed on the array substrate 21, and the array substrate 10 includes a bent side area 100 and a front display area 200; the included angle between the plane of the array substrate 10 in the bent side area 100 and the plane of the array substrate 10 in the front display area 200 is psi, and psi is greater than or equal to 0 and less than or equal to 90 degrees; in the bent side area 100, an included angle between a central axis of the arc-shaped organic light emitting unit 21 and a plane where the array substrate 10 is located is θ; wherein theta is 90-psi.
Fig. 5 is a schematic structural diagram of an organic light emitting display panel according to an embodiment of the present invention, referring to fig. 5, the organic light emitting display panel further includes an array substrate 10, the arc-shaped organic light emitting units 21 are disposed on the array substrate 10, the array substrate 10 is a curved surface, an included angle between a section of the array substrate 10 where any one of the arc-shaped organic light emitting units 21 is located and a front view plane 1 is α, 0 is equal to or greater than α is equal to or less than 90 degrees, an included angle between a central axis of the arc-shaped organic light emitting unit 21 and a plane where the array substrate 10 is located is β, where β is equal to 90- α.
As shown in fig. 2 to 5, in the organic light emitting display panel, the arc-shaped organic light emitting units 21 are all in an arc-shaped protruding structure or an arc-shaped concave structure, and a person skilled in the art can select the arc-shaped organic light emitting units 21 to be in a protruding structure or a concave structure according to actual manufacturing conditions and manufacturing difficulty. In addition, as can be understood by those skilled in the art, the organic light emitting display panel may further include an arc-shaped organic light emitting unit having a convex structure, and an arc-shaped organic light emitting unit having a concave structure, which are not described herein again. It should be noted that the organic light emitting display panels provided in fig. 2-5 are display panels having bent sides or curved surfaces as a whole, and those skilled in the art can design display panels having curved sides or curved surfaces according to the above embodiments, which also fall within the scope of the present application.
Further, on the basis of the organic light emitting display panel provided by the above embodiment, the embodiment of the invention also provides a preparation method of the organic light emitting display panel. With continued reference to fig. 2-5, the organic light emitting display panel specifically includes an array substrate 10, the array substrate 10 including an organic protective layer 11; the surface of the organic protective layer 11 has a plurality of arc structures 110, and each arc-shaped organic light emitting unit 21 is correspondingly disposed on an arc surface of one arc structure 110. Fig. 6 is a flowchart of a method for manufacturing an organic light emitting display panel according to an embodiment of the present invention, and fig. 7 is a flowchart of a structure of a method for manufacturing an organic light emitting display panel shown in fig. 6, and referring to fig. 6 and 7, the method includes:
s110, providing an array substrate 10, wherein an organic protective layer 11 is coated on the array substrate 10;
referring to a) of fig. 7, the organic protection layer 11 is generally a flat film structure, and after the components and traces of the driving circuit are formed on the array substrate, the organic protection layer 11 is used for covering protection and planarization.
S120, patterning the surface of the organic protection layer 11 to form a plurality of arc-shaped structures 110;
referring to b) of fig. 7, the arc-shaped structure 110 may be fabricated by a nano-imprinting or etching process in this step. Taking the etching process as an example, before performing the photolithography, a photoresist needs to be coated on the organic protection layer 11, and then the photoresist is exposed and developed by using a mask to form the arc-shaped structure 110. It should be noted that, in general, the organic display panel having the bent side region or the curved organic display panel is prepared by first preparing a flat array substrate and then bending the flat array substrate. Therefore, when the array substrate and the arc-shaped organic light emitting units are manufactured, the included angle between the central axis of the arc-shaped organic light emitting unit and the array substrate at the position of the arc-shaped organic light emitting unit is required to be adaptively preset corresponding to the bending side area of the organic light emitting display panel, so as to ensure that the central axis of the arc-shaped organic light emitting unit at the bending side area is perpendicular to the front view plane of the display panel after the array substrate is bent. Specifically, the light transmittance of the exposure can be adjusted by using a halftone mask, and the semi-permeable membrane part of the halftone optical axis determines the size and the change rule of the transmittance according to the height difference of the arc-shaped structure 110 of the required organic protective layer 11, so that the exposure can be adjusted to form the arc-shaped structure 110 with a certain included angle between the central axis and the array substrate.
S130, forming arc-shaped organic light emitting units 21 on the arc-shaped surface of each arc-shaped structure 110.
Referring to fig. 7 c), the step is substantially a step of preparing an organic light emitting unit including a cathode, an organic light emitting functional layer, and an anode, and specifically may be prepared by evaporation, deposition, and the like, for the alignment arc structure 110.
As in the above embodiments, the organic light emitting display panel needs to perform color matching of a screen, and therefore, when the organic light emitting units are provided, it is necessary to provide organic light emitting units of a plurality of colors. Specifically, the plurality of arc-shaped organic light emitting units include a red organic light emitting unit, a green organic light emitting unit, and a blue organic light emitting unit. Fig. 8 is a schematic structural diagram of another organic light emitting display panel according to an embodiment of the present invention, and referring to fig. 8, wherein each of the red organic light emitting unit 211, the green organic light emitting unit 212, and the blue organic light emitting unit 213 is an arc organic light emitting unit, and axes thereof are perpendicular to the front view plane 1. Therefore, the display brightness of the arc-shaped organic light-emitting units of the three colors on the front view surface 1 is not different, and the display brightness uniformity of the display panel under each view angle can be ensured while full-color matching is realized.
In the above embodiment, the larger the light exit angle of the arc-shaped organic light emitting unit is, the larger the viewing angle range of the display panel is, so that it can be ensured that a user can still obtain a display picture when observing the display panel with a larger viewing angle. Based on the above, the embodiment of the invention also provides an organic light emitting display panel. Fig. 9 is a schematic structural diagram of another organic light emitting display panel according to an embodiment of the present invention, and referring to fig. 9, an included angle between a tangent plane of an edge of an arc-shaped organic light emitting unit 21 and a front view plane 1 is γ, where γ is greater than or equal to 80 °. The positive light emitting direction of each position of the arc-shaped organic light emitting unit 21 is perpendicular to the tangent plane of the position, and the positive light emitting direction at the edge position of the arc-shaped organic light emitting unit 21 is the maximum light emitting direction of the display panel. As shown in fig. 7, according to the geometric relationship, when the included angle γ between the tangent plane of the edge of the arc-shaped organic light emitting unit 21 and the front viewing plane 1 is greater than or equal to 80 °, the included angle between the front light emitting direction at the edge of the arc-shaped organic light emitting unit 21 and the front light emitting direction of the display panel is greater than or equal to 80 °. At the moment, the organic light-emitting display panel can further ensure that the visual angle range is greater than or equal to 80 degrees on the basis of ensuring the uniform display brightness in each visual angle range, thereby increasing the application scenes of the organic light-emitting display panel and improving the display quality.
It can be understood that, the larger the arc-shaped area of the arc-shaped organic light emitting unit of the organic light emitting display panel, the larger the area of the arc-shaped light emitting surface of the arc-shaped organic light emitting unit, that is, the larger the maximum light emitting angle of each organic light emitting unit. Meanwhile, the larger the radius of curvature of the arc-shaped organic light emitting unit is, the larger the area of the arc-shaped exit surface of the arc-shaped organic light emitting unit is, that is, the larger the maximum light exit angle of each organic light emitting unit is. Based on this, a person skilled in the art can reasonably adjust the arc area and the curvature radius of the arc-shaped organic light emitting unit to obtain a section of the edge of the arc-shaped organic light emitting unit, and an included angle between the section of the edge of the arc-shaped organic light emitting unit and the front view plane of the organic light emitting display panel has a larger angle, so that the view angle range of the organic light emitting display panel is enlarged.
Fig. 10 is a schematic structural diagram of another organic light emitting display panel according to an embodiment of the present invention, and referring to fig. 10, further, on the basis of the above embodiment, the organic light emitting display panel further includes a pixel defining structure 30, the pixel defining structure 30 is located between two adjacent arc-shaped organic light emitting units 21, and any pixel defining structure 30 may be disposed perpendicular to the front view surface 1.
Wherein, the pixel definition structure 30 is used for separating adjacent arc organic light emitting units 21, adjacent pixel definition structure 30 surrounds arc organic light emitting units 21, on the axis of arc organic light emitting units 21 and the basis of front view 1 vertically, that is, the light emitting direction of arc organic light emitting units 21 is perpendicular to front view 1, when setting up pixel definition structure 30 and front view 1 vertically, then the middle opening of adjacent pixel definition structure 30 faces front view 1, thereby the blocking of pixel definition structure 30 to the light emitting of arc organic light emitting units 21 is avoided, the light emitting brightness of each region of the organic light emitting display panel with a bending surface or curved surface is ensured to be consistent, and the brightness uniformity of the display panel is further ensured.
Fig. 11 is a side view of a display device according to an embodiment of the present invention, and referring to fig. 11, the organic light emitting display device includes any one of the organic light emitting display panels 2 according to an embodiment of the present invention. The organic light emitting display device can be a mobile phone, a computer, intelligent wearable equipment, vehicle-mounted display equipment and the like.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An organic light-emitting display panel is characterized in that at least part of the area of the organic light-emitting display panel is a bent surface or a curved surface, and the organic light-emitting display panel is provided with a front view surface;
the organic light emitting display panel comprises a plurality of arc-shaped organic light emitting units, each arc-shaped organic light emitting unit is provided with an arc-shaped light emergent surface, and the central axis of each arc-shaped organic light emitting unit is perpendicular to the front view surface.
2. The organic light emitting display panel according to claim 1, further comprising an array substrate on which the arc-shaped organic light emitting units are disposed, the array substrate including a bent side region and a front display region;
the included angle between the plane of the array substrate in the bent side area and the plane of the array substrate in the front display area is psi, and psi is more than or equal to 0 and less than or equal to 90 degrees; in the bent side area, an included angle between a central axis of the arc-shaped organic light-emitting unit and a plane where the array substrate is located is theta; wherein theta is 90-psi.
3. The organic light-emitting display panel according to claim 1, further comprising an array substrate, wherein the arc-shaped organic light-emitting units are disposed on the array substrate, and the array substrate is curved;
the included angle between the tangent plane of the array substrate where any one of the arc-shaped organic light-emitting units is located and the front view plane is α, α is larger than or equal to 0 and smaller than or equal to 90 degrees, the included angle between the central axis of the arc-shaped organic light-emitting unit and the plane where the array substrate is located is β, and β is 90- α degrees.
4. The panel of claim 1, wherein the included angle between the tangent plane of the edge of the arc-shaped organic light emitting unit and the front view plane is γ, γ is greater than or equal to 80 °.
5. The panel of claim 1, further comprising a pixel defining structure between two adjacent curved organic light emitting units, wherein any of the pixel defining structures is perpendicular to the front viewing plane.
6. The organic light emitting display panel according to claim 1, wherein the organic light emitting display panel comprises an array substrate including an organic protective layer;
the surface of the organic protective layer is provided with a plurality of arc-shaped structures, and each arc-shaped organic light-emitting unit is correspondingly arranged on the arc-shaped surface of one arc-shaped structure.
7. The organic light-emitting display panel of claim 6, wherein the plurality of arc structures are fabricated using a nanoimprint or etching process.
8. The organic light emitting display panel according to claim 1, wherein the arc-shaped organic light emitting unit is an arc-shaped convex structure or an arc-shaped concave structure.
9. The organic light-emitting display panel according to claim 1, wherein the plurality of arc-shaped organic light-emitting units comprise red, green and blue organic light-emitting units.
10. An organic light emitting display device comprising the organic light emitting display panel according to any one of claims 1 to 9.
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| CN111969131A (en) * | 2020-08-31 | 2020-11-20 | 合肥维信诺科技有限公司 | Display panel and display device |
| CN112038493A (en) * | 2020-08-17 | 2020-12-04 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN112083597A (en) * | 2019-06-12 | 2020-12-15 | 群创光电股份有限公司 | Display, display panel thereof and manufacturing method |
| CN112086578A (en) * | 2020-09-14 | 2020-12-15 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN112542500A (en) * | 2020-12-03 | 2021-03-23 | 武汉华星光电半导体显示技术有限公司 | Display panel and manufacturing method thereof |
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