CN-122003975-A - Display panel and display device

Abstract

A display panel and a display apparatus, the display panel including a substrate, a first isolation structure, and a plurality of light emitting devices. The first isolation structure is positioned on one side of the substrate, a plurality of first openings are formed in the first isolation structure, and the first isolation structure can transmit light. Each of the light emitting devices is at least partially located within one of the first openings. The display panel is used for displaying images.

Inventors

• CHEN DENGYUN
• LI LANGTAO
• ZHENG KENING
• WU TONG
• LIU ZHENG
• WANG TAO
• ZHANG HUIJUAN

Assignees

• 京东方科技集团股份有限公司

Dates

Publication Date

20260508

Application Date

20240904

Claims (20)

1. A display panel, comprising: A substrate; The first isolation structure is positioned on one side of the substrate and is provided with a plurality of first openings; A plurality of light emitting devices, each of said light emitting devices being at least partially located within one of said first openings.
2. The display panel according to claim 1, wherein the first isolation structure comprises a first sub-layer, a second sub-layer, and a third sub-layer which are sequentially stacked in a direction away from the substrate, wherein an edge of the third sub-layer protrudes toward a direction closer to the light emitting device adjacent to the second sub-layer than the second sub-layer; the light emitting device includes a first electrode, a light emitting portion, and a second electrode which are sequentially stacked in a direction away from the substrate; the first sub-layer comprises a conductive material, and the second electrodes of two adjacent light emitting devices are electrically connected through the first sub-layer.
3. The display panel of claim 2, wherein an edge of the first sub-layer protrudes toward a direction closer to the light emitting device adjacent to the second sub-layer than the second sub-layer; A gap is formed between the edge of the light-emitting part and the second sub-layer, and the edge of the second electrode extends into the gap to be in contact with the surface, away from the substrate, of the first sub-layer.
4. A display panel according to claim 2 or 3, wherein the second and third sub-layers each comprise an inorganic material and the material of the second and third sub-layers are different.
5. The display panel according to any one of claims 1 to 4, further comprising: the second isolation structure is positioned between the plurality of light emitting devices and the substrate and is provided with a plurality of second openings; And a plurality of photodetectors, each of the photodetectors being positioned within one of the second openings, the photodetectors and the first isolation structures at least partially overlapping in orthographic projection onto the substrate.
6. The display panel of claim 5, wherein the second opening is located within the first isolation structure in front projection to the substrate.
7. A display panel according to claim 5 or 6, wherein the second isolation structure and the light emitting device at least partially overlap in an orthographic projection onto the substrate.
8. The display panel according to any one of claims 5 to 7, further comprising at least one insulating layer between the plurality of photodetectors and the first isolation structure, the insulating layer being light transmissive.
9. The display panel according to claim 8, wherein the at least one insulating layer comprises an inorganic insulating layer and a flat layer which are sequentially stacked in a direction away from the substrate.
10. The display panel according to any one of claims 1 to 9, wherein the light-emitting device includes a first electrode, a light-emitting portion, and a second electrode which are sequentially stacked in a direction away from the substrate; The display panel further comprises a first laminated structure, wherein the first laminated structure is positioned on one side, far away from the substrate, of the first isolation structure, the first laminated structure comprises a first sub-part and a second sub-part which are sequentially laminated along the direction far away from the substrate, the material of the first sub-part is the same as that of the light-emitting part, and the material of the second sub-part is the same as that of the second electrode; in the orthographic projection to the substrate, two first lamination structures are arranged between two adjacent light emitting devices, the two first lamination structures have a space in a first direction, and the first direction is parallel to a connecting line of centers of the two adjacent light emitting devices.
11. The display panel according to any one of claims 1 to 9, wherein the light-emitting device includes a first electrode, a light-emitting portion, and a second electrode which are sequentially stacked in a direction away from the substrate; The display panel further comprises a first laminated structure, wherein the first laminated structure is positioned on one side, far away from the substrate, of the first isolation structure, the first laminated structure comprises a first sub-part and a second sub-part which are sequentially laminated along the direction far away from the substrate, the material of the first sub-part is the same as that of the light-emitting part, and the material of the second sub-part is the same as that of the second electrode; In the orthographic projection to the substrate, two first laminated structures are arranged between two adjacent light emitting devices, and one first laminated structure at least covers a partial area of the other first laminated structure in the two first laminated structures.
12. The display panel according to any one of claims 1 to 11, wherein the photodetector includes a third electrode, a photoelectric conversion film layer, and a fourth electrode, which are sequentially stacked in a direction away from the substrate; And the fourth electrodes in the adjacent photodetectors are connected with each other to form a fourth electrode layer, and the fourth electrode layer covers the photoelectric conversion film layer and the second isolation structure.
13. A display panel, comprising: A substrate; The first isolation structure is positioned on one side of the substrate and is provided with a plurality of first openings and a plurality of second openings; a plurality of light emitting devices, each of said light emitting devices being at least partially located within one of said first openings; A plurality of photodetectors, each of said photodetectors being at least partially located within one of said second openings.
14. The display panel according to claim 13, wherein the photodetector includes a third electrode, a photoelectric conversion film layer, and a fourth electrode which are sequentially stacked in a direction away from the substrate; the light emitting device includes a first electrode, a light emitting portion, and a second electrode which are sequentially stacked in a direction away from the substrate; In the adjacent light emitting device and photodetector, the second electrode of the light emitting device and the fourth electrode of the photodetector are electrically connected through the first isolation structure.
15. The display panel according to claim 14, wherein the first isolation structure includes a first sub-layer and a second sub-layer stacked in this order in a direction away from the substrate, an edge of the second sub-layer protruding toward a direction closer to the light emitting device adjacent to the first sub-layer than the first sub-layer; The first sub-layer includes a conductive material, and in the adjacent light emitting device and photodetector, the second electrode of the light emitting device and the fourth electrode of the photodetector are electrically connected through the first sub-layer.
16. The display panel according to any one of claims 13 to 15, wherein the first isolation structure includes a first sub-layer and a second sub-layer that are sequentially stacked in a direction away from the substrate; The first sub-layer and the second sub-layer each comprise a metallic material, and the materials of the first sub-layer and the second sub-layer are different.
17. The display panel according to any one of claims 13 to 16, wherein the light-emitting device includes a first electrode, a light-emitting portion, and a second electrode which are sequentially stacked in a direction away from the substrate; The photoelectric detector comprises a third electrode, a photoelectric conversion film layer and a fourth electrode which are sequentially stacked along the direction far away from the substrate; The display panel further includes: The first laminated structure comprises a first sub-part and a second sub-part which are sequentially laminated along the direction away from the substrate, wherein the material of the first sub-part is the same as that of the light-emitting part, and the material of the second sub-part is the same as that of the second electrode; The second laminated structure comprises a third sub-part and a fourth sub-part which are sequentially laminated along the direction far away from the substrate, wherein the material of the third sub-part is the same as that of the photoelectric conversion film layer, and the material of the fourth sub-part is the same as that of the fourth electrode; In the orthographic projection to the substrate, two first lamination structures are arranged between two adjacent light emitting devices, and the two first lamination structures have a space in a first direction, wherein the first direction is parallel to a connecting line of the centers of the two adjacent light emitting devices; and/or, in the orthographic projection to the substrate, two second laminated structures are arranged between two adjacent photodetectors, and the two second laminated structures have a space in the first direction; And/or, in the orthographic projection onto the substrate, one first laminated structure and one second laminated structure are arranged between adjacent photodetectors and light emitting devices, and one first laminated structure and one second laminated structure have a pitch in the first direction.
18. The display panel according to any one of claims 13 to 16, wherein the light-emitting device includes a first electrode, a light-emitting portion, and a second electrode which are sequentially stacked in a direction away from the substrate; The photoelectric detector comprises a third electrode, a photoelectric conversion film layer and a fourth electrode which are sequentially stacked along the direction far away from the substrate; The display panel further includes: The first laminated structure comprises a first sub-part and a second sub-part which are sequentially laminated along the direction away from the substrate, wherein the material of the first sub-part is the same as that of the light-emitting part, and the material of the second sub-part is the same as that of the second electrode; The second laminated structure comprises a third sub-part and a fourth sub-part which are sequentially laminated along the direction far away from the substrate, wherein the material of the third sub-part is the same as that of the photoelectric conversion film layer, and the material of the fourth sub-part is the same as that of the fourth electrode; In the orthographic projection to the substrate, two first laminated structures are arranged between two adjacent light emitting devices, and in the two first laminated structures, one first laminated structure at least covers a partial area of the other first laminated structure; And/or, in the orthographic projection to the substrate, two second laminated structures are arranged between two adjacent photodetectors, and in the two second laminated structures, one second laminated structure at least covers a partial area of the other second laminated structure; And/or, in the orthographic projection to the substrate, one of the first laminated structure and the second laminated structure is arranged between the adjacent photoelectric detector and the light emitting device, and one of the first laminated structure and the second laminated structure covers at least a partial area of the other.
19. The display panel according to any one of claims 13 to 18, further comprising: The black matrix layer is provided with a plurality of third openings, each third opening is communicated with one first opening, the orthographic projection of the black matrix layer on the substrate and the orthographic projection of the first isolation structure on the substrate are at least partially overlapped, and the black matrix layer and the first isolation structure have a distance in the direction perpendicular to the substrate.
20. A display device, comprising: The display panel of any one of claims 1-19; and the cover plate is positioned on the light emitting side of the display panel.

Description

Display panel and display device Technical Field The disclosure relates to the field of display technologies, and in particular, to a display panel and a display device. Background With the continuous development of display technology, display devices have been gradually spread throughout the life of people. Among them, an Organic Light-Emitting Diode (OLED) display panel has advantages of self-luminescence, low power consumption, wide viewing angle, fast response speed, high contrast ratio, etc., and thus is widely used in display devices such as mobile phones, televisions, notebook computers, etc. Disclosure of Invention In one aspect, a display panel is provided. The display panel includes a substrate, a first isolation structure, and a plurality of light emitting devices. The first isolation structure is positioned on one side of the substrate, a plurality of first openings are formed in the first isolation structure, and the first isolation structure can transmit light. Each of the light emitting devices is at least partially located within one of the first openings. In some embodiments, the first isolation structure includes a first sub-layer, a second sub-layer, and a third sub-layer that are sequentially stacked in a direction away from the substrate, and an edge of the third sub-layer protrudes toward a direction close to the light emitting device adjacent to the second sub-layer compared to the second sub-layer. The light emitting device includes a first electrode, a light emitting portion, and a second electrode that are sequentially stacked in a direction away from the substrate. The first sub-layer comprises a conductive material, and the second electrodes of two adjacent light emitting devices are electrically connected through the first sub-layer. In some embodiments, an edge of the first sub-layer protrudes toward a direction closer to the light emitting device adjacent to the second sub-layer than the second sub-layer. A gap is formed between the edge of the light-emitting part and the second sub-layer, and the edge of the second electrode extends into the gap to be in contact with the surface, away from the substrate, of the first sub-layer. In some embodiments, the second sub-layer and the third sub-layer each comprise an inorganic material, and the material of the second sub-layer and the material of the third sub-layer are different. In some embodiments, the display panel further comprises a second isolation structure and a plurality of photodetectors. A second isolation structure is located between the plurality of light emitting devices and the substrate, the second isolation structure being provided with a plurality of second openings. Each of the photodetectors is located within one of the second openings. In an orthographic projection onto the substrate, the photodetector and the first isolation structure at least partially overlap. In some embodiments, the second opening is located within the first isolation structure in an orthographic projection onto the substrate. In some embodiments, the second isolation structure and the light emitting device at least partially overlap in an orthographic projection onto the substrate. In some embodiments, the display panel further comprises at least one insulating layer. The at least one insulating layer is located between the plurality of photodetectors and the first isolation structure. The insulating layer is transparent. In some embodiments, the at least one insulating layer includes an inorganic insulating layer and a planarization layer that are sequentially stacked in a direction away from the substrate. In some embodiments, the light emitting device includes a first electrode, a light emitting portion, and a second electrode sequentially stacked in a direction away from the substrate. The display panel further includes a first laminate structure. The first laminated structure is positioned on one side of the first isolation structure away from the substrate. The first laminated structure comprises a first sub-part and a second sub-part which are sequentially laminated along the direction far away from the substrate, the material of the first sub-part is the same as that of the light-emitting part, and the material of the second sub-part is the same as that of the second electrode. In the orthographic projection to the substrate, two first lamination structures are arranged between two adjacent light emitting devices, and the two first lamination structures have a space in a first direction, and the first direction is parallel to a connecting line of centers of the two adjacent light emitting devices. In some embodiments, the light emitting device includes a first electrode, a light emitting portion, and a second electrode sequentially stacked in a direction away from the substrate. The display panel further includes a first laminate structure. The first laminated structure is positioned on one side of the first isolation structure awa