CN-122003068-A - Display panel and display device

Abstract

The invention provides a display panel and a display device, and relates to the technical field of display. The relative position relation of the bending part and the dimming layer is designed correspondingly, so that the bending part and the dimming layer are at least partially overlapped, the bending part is close to the display area, the most protruding point of the bending part is also close to the display area, and the size of a frame area corresponding to the bending part in the display panel can be reduced to the greatest extent under the condition that the most protruding point of the bending part moves inwards.

Inventors

• LUO YUN
• Song Shuxiong

Assignees

• 武汉天马微电子有限公司

Dates

Publication Date

20260508

Application Date

20260204

Claims (19)

1. 1. A display panel, wherein the display panel comprises a display area and a frame area at least partially surrounding the display area; The display panel comprises a substrate, an array layer, a display layer and a dimming layer, wherein the array layer is positioned on one side of the substrate, and the display layer and the dimming layer are sequentially arranged far away from the array layer; the array layer comprises a first part and a second part which are sequentially stacked in a first direction, wherein the first direction is perpendicular to a plane where the substrate is located and is directed to the array layer by the substrate; the first portion includes a first plane portion, a second plane portion, and a bent portion between the first plane portion and the second plane portion, and the bent portion and the dimming layer at least partially overlap in a direction perpendicular to the display panel.
2. 2. The display panel of claim 1, wherein the display area at least partially overlaps the curved portion in the first direction.
3. 3. The display panel of claim 1, wherein the second portion and the curved portion have a first gap therebetween, the first gap having a value that gradually increases along a direction in which the display area is directed toward the bezel area.
4. 4. The display panel of claim 1, wherein the display panel comprises, The first part comprises a first film layer, the first film layer extends from the first plane part to the second plane part, the second part comprises a second film layer, the top surface of the first film layer is at least partially contacted with the bottom surface of the second film layer, a plurality of first grooves are formed in the position, close to the bending part, of the first plane part, one side, facing the second part, of the first film layer, and the second film layer fills the first grooves.
5. 5. The display panel of claim 4, wherein the first recess has a width of 0.01mm to 0.1mm.
6. 6. The display panel of claim 4, wherein a distance between the area where the first groove is located and the curved portion is less than 0.02mm.
7. 7. The display panel of claim 1, wherein the display panel comprises, The display panel further includes an adhesive layer; The first part comprises a first film layer, the first film layer extends from the first plane part to the second plane part, the second part comprises a second film layer, the top surface of the first film layer is at least partially contacted with the bottom surface of the second film layer, and an adhesive layer is arranged between the first film layer and the second film layer at a position, close to the bending part, of the first plane part.
8. 8. The display panel according to any one of claims 4 to 7, wherein the material of the first film layer and the second film layer is an organic film material.
9. 9. The display panel of claim 8, wherein the material of the first and second film layers is a polyimide material, a polyester material, or a polyamide material.
10. 10. The display panel of claim 1, wherein the display panel comprises, The first part comprises an intermediate film layer and a first film layer which are sequentially positioned on one side of the substrate in the first direction, and the second part comprises a second film layer, wherein the top surface of the first film layer is at least partially contacted with the bottom surface of the second film layer; The middle film layer comprises a second groove corresponding to the bending part, and the second groove penetrates through the middle film layer; and filling the target film layer of the second groove, wherein the target film layer is made of an organic film material.
11. 11. The display panel according to claim 1, wherein the light-emitting element includes an anode, an organic light-emitting layer, and a cathode; the light emitting element overlapping the bent portion is electrically connected to the pixel circuit through a first connection line, and the pixel circuit is located at the first plane portion.
12. 12. The display panel according to claim 11, wherein the first connection line is provided in the same layer as the anode.
13. 13. The display panel according to claim 11, wherein the first connection line is located at the second portion and at a side of the anode adjacent to the substrate.
14. 14. The display panel according to claim 11, wherein the display panel includes a first side and a second side disposed opposite to each other in a second direction, the curved portion is located at the second side, a distance between adjacent pixel circuits near the first side is D1, a distance between adjacent pixel circuits near the second side is D2, and D1> D2 in the second direction.
15. 15. The display panel according to claim 4, wherein the light-emitting element includes an anode, an organic light-emitting layer, and a cathode; The light emitting element at least partially overlapping the bent portion is electrically connected to the pixel circuit through a via hole provided at a side of the first groove away from the bent portion.
16. 16. A display panel according to claim 3, further comprising a cover plate overlapping the display region and the bezel region and being located at a side of the dimming layer remote from the substrate, the bezel region being provided with an encapsulation compound filling the first gap and contacting the cover plate, the dimming layer, the bending portion, and the second planar portion.
17. 17. The display panel of claim 16, wherein the encapsulant is a light absorbing material.
18. 18. The display panel of claim 1, wherein the orthographic projection of the bezel area covers the most convex point of the curved portion.
19. 19. A display device comprising the display panel of any one of claims 1-18.

Description

Display panel and display device Technical Field The present application relates to the field of display technologies, and in particular, to a display panel and a display device. Background Along with the continuous development of science and technology, various display devices are widely applied to the life and work of people, and great convenience is brought to the daily life of people. The display panel is one of important components of the display device, and the design of the display panel directly or indirectly affects the display effect of the display device. How to reduce the frame area of the display panel and realize the narrow frame design is a technical problem to be solved by the skilled person. Disclosure of Invention In view of the above, the present application provides a display panel and a display device, which achieve the purpose of reducing the frame area of the display panel. The specific scheme is as follows: The first aspect of the present application provides a display panel, the display panel including a display area and a bezel area at least partially surrounding the display area; The display panel comprises a substrate, an array layer, a display layer and a dimming layer, wherein the array layer is positioned on one side of the substrate, and the display layer and the dimming layer are sequentially arranged far away from the array layer; the array layer comprises a first part and a second part which are sequentially stacked in a first direction, wherein the first direction is perpendicular to a plane where a substrate is positioned and is directed to the array layer by the substrate; The first portion includes a first planar portion, a second planar portion, and a curved portion between the first planar portion and the second planar portion, the curved portion and the dimming layer at least partially overlapping in a direction perpendicular to the display panel. Based on the same inventive concept, a second aspect of the present application provides a display device including the above display panel. By means of the technical scheme, the display panel and the display device are provided, the pixel circuits arranged in the array layer are used for controlling the working states of the light emitting elements in the display layer and further controlling the display state of the display panel, the dimming layer is arranged on one side, away from the array layer, of the display layer, and the display effect of the display panel is improved by modulating light emitted by the display layer and/or light incident into the display panel from the outside. After the first part is bent, the first part comprises a first plane part, a second plane part and a bending part positioned between the first plane part and the second plane part, namely, the second plane part is bent to the back surface of the display panel, and a frame area where the bending part is positioned in the display panel is reduced under the condition that some components and/or functional devices are integrally arranged on the second plane part. According to the technical scheme, the relative position relation between the bending part and the dimming layer is designed correspondingly, so that the bending part and the dimming layer are at least partially overlapped, the bending part is enabled to approach into the display area, the most protruding point of the bending part is enabled to approach into the display area, and the size of a frame area corresponding to the bending part in the display panel can be reduced to the greatest extent under the condition that the most protruding point of the bending part moves inwards in the display area. Drawings The above and other features, advantages, and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. The same or similar reference numbers will be used throughout the drawings to refer to the same or like elements. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale. Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention; FIG. 2 is a schematic cross-sectional view of a display panel before bending according to an embodiment of the present invention; FIG. 3 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention after bending; FIG. 4 is a schematic cross-sectional view of another display panel according to an embodiment of the present invention after bending; FIG. 5 is a schematic cross-sectional view of a display panel after bending according to another embodiment of the present invention; FIG. 6 is a schematic cross-sectional view of a display panel after bending according to another embodiment of the present invention; FIG. 7 is a schematic cross-sectional view of a display pa