CN-119907408-B - Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a first display area and a second display area, wherein the second display area at least partially surrounds the first display area, the light transmittance of the first display area is larger than that of the second display area, a first wiring layer is arranged on one side of a substrate and is positioned in the first display area, a plurality of light emitting units are arranged on one side of the substrate and are positioned in the first display area and the second display area, each light emitting unit comprises a first electrode and a second electrode, one of the first wiring layers is connected with at least two first electrodes positioned in the first display area, and/or one of the first wiring layers is connected with at least two second electrodes positioned in the first display area, so that the same driving signal is realized to drive a plurality of light emitting units in the first display area, the wiring quantity of the first display area is reduced, and the light transmittance of the first display area is improved.

Inventors

• YAO YUAN
• ZHOU ZHIWEI
• SUN XIAOQIAN
• WU JIAN
• WANG TIAN
• LI ZHONGJUN

Assignees

• 合肥维信诺科技有限公司
• 合肥维信诺电子有限公司
• 维信诺科技股份有限公司

Dates

Publication Date

20260505

Application Date

20240731

Claims (20)

1. 1. A display panel comprising a first display region and a second display region, the second display region at least partially surrounding the first display region, the first display region having a light transmittance that is greater than a light transmittance of the second display region, the display panel further comprising: A substrate; The first wiring layer is arranged on one side of the substrate and is positioned in the first display area; the light-emitting units are arranged on one side of the substrate and positioned in the first display area and the second display area, and each light-emitting unit comprises a first electrode and a second electrode; Wherein one of the first wiring layers is connected with at least two first electrodes positioned in the first display area, and/or one of the first wiring layers is connected with at least two second electrodes positioned in the first display area; the display panel further includes: The isolation layer comprises a plurality of first isolation structures positioned in the first display area, wherein the first isolation structures are enclosed to form a first isolation opening, and the second electrode of the light-emitting unit arranged in the first display area is positioned in the corresponding first isolation opening and is electrically connected with the corresponding first isolation structure; The first wiring layer comprises at least one first wiring structure, the at least one first wiring structure is connected with at least two first isolation structures, the plurality of first isolation structures are arranged at intervals, a spacing area is arranged between the first isolation structures, so that the first electrodes and the second electrodes are insulated, and the orthographic projection of the first wiring structure on the substrate overlaps with the orthographic projection of the spacing area on the substrate.
2. 2. The display panel of claim 1, further comprising a plurality of pixels, the pixels including at least two of the light emitting units, the at least one first routing structure including a plurality of first routing structures, wherein the first routing structures connect the first isolation structures corresponding to the light emitting units in the at least two pixels.
3. 3. The display panel of claim 2, wherein a plurality of the light emitting units are arranged to form a plurality of first pixel rows and a plurality of second pixel rows, the first pixel rows and the second pixel rows are alternately arranged in a first direction, the pixels include first pixels and second pixels, the first pixels are arranged in the first pixel rows along a second direction, the second pixels are arranged in the second pixel rows along the second direction, the first direction and the second direction have an included angle, and the first routing structure connects the first isolation structure corresponding to the light emitting unit in at least one of the first pixels and the first isolation structure corresponding to the light emitting unit in at least one of the second pixels.
4. 4. A display panel according to claim 3, wherein the first wiring structure connects the first isolation structures corresponding to the light emitting units in at least one of the first pixels and at least one of the second pixels adjacent in the second direction.
5. 5. The display panel according to claim 4, wherein the light emitting units corresponding to the first isolation structures connected to the first wiring structure have the same light emitting color.
6. 6. The display panel of claim 1, wherein the at least one first trace structure comprises a first trace structure, wherein: the first wiring structure is connected with the plurality of first isolation structures.
7. 7. The display panel of claim 6, wherein the first wiring structure connects the plurality of first isolation structures and the second electrode of the light emitting unit disposed in the second display region.
8. 8. The display panel of claim 7, wherein the isolation layer further comprises a second isolation structure located in the second display area, the second isolation structure encloses to form a plurality of second isolation openings, the second electrodes of the light emitting units disposed in the second display area are located in the corresponding second isolation openings and electrically connected to the second isolation structure, and wherein the first routing structure connects the second isolation structure and the plurality of first isolation structures.
9. 9. The display panel of claim 1, further comprising: the pixel limiting layer is positioned on one side of the first wiring layer and the first electrode, which is far away from the substrate, and is arranged on the first display area and the second display area, and the isolating layer is positioned on one side of the pixel limiting layer, which is far away from the substrate; the pixel limiting layer arranged in the first display area comprises a via hole, and the at least one first wiring structure is connected with the at least two first isolation structures through the via hole.
10. 10. The display panel according to any one of claims 1-9, wherein the first wiring structure is arranged in the same layer as the first electrode; or, the first wiring structure is arranged on one side of the first electrode close to the substrate.
11. 11. The display panel of claim 10, wherein the first trace structure is disposed adjacent to the first electrode.
12. 12. The display panel of claim 11, further comprising at least one conductive layer disposed between the first electrode and the substrate, the first electrode being connected to a pixel driving circuit through the conductive layer, the first routing structure being co-layer with the conductive layer; Or, the first wiring structure is arranged on one side of the first electrode away from the substrate.
13. 13. The display panel of claim 12, wherein the first isolation structures have a spacer therebetween, wherein the orthographic projection of the first electrode at the substrate does not overlap with the orthographic projection of the spacer at the substrate, and wherein the orthographic projection of the first trace structure at the substrate overlaps with the orthographic projection of the spacer at the substrate.
14. 14. The display panel of claim 1, further comprising a plurality of pixels, the pixels comprising at least two of the light emitting cells, the first routing layer comprising a plurality of second routing structures, wherein the second routing structures connect the first electrodes corresponding to the light emitting cells in the at least two pixels.
15. 15. The display panel of claim 14, wherein the plurality of light emitting cells are arranged to form a plurality of first pixel rows and a plurality of second pixel rows, the first pixel rows and the second pixel rows being alternately arranged in a first direction, the pixels including first pixels and second pixels, the first pixels being arranged in a second direction in the first pixel rows, the second pixels being arranged in the second direction in the second pixel rows, the first direction and the second direction having an included angle; The second wiring structure is connected with the first electrode corresponding to the light emitting unit in at least one first pixel and the first electrode corresponding to the light emitting unit in at least one second pixel.
16. 16. The display panel according to claim 15, wherein the second wiring structure connects the at least one first pixel adjacent in the second direction and the first electrode corresponding to the light emitting unit in the at least one second pixel.
17. 17. The display panel according to claim 16, wherein the first electrodes connected to the second wiring structure have the same emission color corresponding to the light emitting units.
18. 18. The display panel of claim 14, wherein the second routing structure is disposed on a side of the first electrode proximate to the substrate.
19. 19. The display panel of claim 18, wherein the second trace structure is disposed adjacent to the first electrode.
20. 20. The display panel of claim 19, further comprising at least one conductive layer disposed between the first electrode and the substrate, the first electrode being connected to a pixel driving circuit through the conductive layer, the second trace structure being co-layer with the conductive layer; Or, the second wiring structure is arranged on one side of the first electrode away from the substrate.

Description

Display panel and display device Technical Field The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device. Background Organic Light-Emitting Diode (OLED) display panels have gained great attention in the display industry due to their faster response time, larger viewing angle, higher contrast, lighter weight, low power, and ease of formation on flexible substrates. At present, the OLED display panel has defects in the application of a full screen. Disclosure of Invention The invention provides a display panel and a display device, wherein the transmission of cathode signals is realized in the whole area of a first display area with an isolation structure. In a first aspect, an embodiment of the present invention provides a display panel, including a first display area and a second display area, where the second display area at least partially surrounds the first display area, and a light transmittance of the first display area is greater than a light transmittance of the second display area, where the display panel further includes: A substrate; The first wiring layer is arranged on one side of the substrate and is positioned in the first display area; the light-emitting units are arranged on one side of the substrate and positioned in the first display area and the second display area, and each light-emitting unit comprises a first electrode and a second electrode; one of the first wiring layers is connected with at least two first electrodes located in the first display area, and/or one of the first wiring layers is connected with at least two second electrodes located in the first display area. Optionally, the display panel further includes: The isolation layer comprises a plurality of first isolation structures positioned in the first display area, wherein the first isolation structures are enclosed to form a first isolation opening, and the second electrode of the light-emitting unit arranged in the first display area is positioned in the corresponding first isolation opening and is electrically connected with the corresponding first isolation structure; The first wiring layer comprises at least one first wiring structure, and the at least one first wiring structure is connected with at least two first isolation structures; preferably, the plurality of first isolation structures are arranged at intervals. Optionally, the display panel includes a plurality of pixels, where the pixels include at least two light emitting units, and the at least one first routing structure includes a plurality of first routing structures, where the first routing structures are connected to the first isolation structures corresponding to the light emitting units in the at least two pixels; Optionally, the plurality of light emitting units are arranged to form a plurality of first pixel rows and a plurality of second pixel rows, the first pixel rows and the second pixel rows are alternately arranged in a first direction, the pixels include first pixels and second pixels, the first pixels are arranged in the first pixel rows along a second direction, the second pixels are arranged in the second pixel rows along the second direction, and an included angle is formed between the first direction and the second direction, wherein the first routing structure is connected with the first isolation structure corresponding to the light emitting unit in at least one first pixel and the first isolation structure corresponding to the light emitting unit in at least one second pixel; Optionally, the first wiring structure is connected to the first isolation structure corresponding to the light emitting unit in at least one first pixel and at least one second pixel adjacent in the second direction; optionally, the light emitting colors of the light emitting units corresponding to the first isolation structures connected by the first routing structure are the same. Optionally, the at least one first routing structure includes a first routing structure, wherein: The first wiring structure is connected with the plurality of first isolation structures; optionally, the first wiring structure connects the plurality of first isolation structures and the second electrode of the light emitting unit disposed in the second display area; Optionally, the isolation layer further includes a second isolation structure located in the second display area, the second isolation structure encloses to form a plurality of second isolation openings, the second electrode of the light emitting unit disposed in the second display area is located in the corresponding second isolation opening and is electrically connected with the second isolation structure, and the first wiring structure connects the second isolation structure and the plurality of first isolation structures. Optionally, the display panel further includes: the pixel limiting layer is positioned on one side of the first wiring layer