US 12,336,397 B2
Display panel and display device with gap for releasing water vapor in non-display area
Shaojing Wu, Wuhan (CN)
Assigned to Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
Appl. No. 17/610,532
Filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
PCT Filed Sep. 13, 2021, PCT No. PCT/CN2021/117911
§ 371(c)(1), (2) Date Nov. 11, 2021,
PCT Pub. No. WO2023/029077, PCT Pub. Date Mar. 9, 2023.
Claims priority of application No. 202111013428.6 (CN), filed on Aug. 31, 2021.
Prior Publication US 2024/0244897 A1, Jul. 18, 2024
Int. Cl. H10K 59/131 (2023.01)
CPC H10K 59/131 (2023.02) 18 Claims
OG exemplary drawing
 
1. A display panel, wherein the display panel comprises a display area and a non-display area surrounding the display area, the display panel comprising:
a substrate;
a pixel drive circuit layer disposed on the substrate and located in the display area, and comprising a plurality of pixel drive circuits;
a first flat layer disposed on a side of the pixel drive circuit layer away from the substrate;
a first conductive layer disposed on a side of the first flat layer away from the substrate and electrically connected to a corresponding pixel drive circuit through a first through-hole penetrating the first flat layer;
a second flat layer disposed on a side of the first conductive layer away from the substrate;
a first electrode disposed on a side of the second flat layer away from the substrate and electrically connected to the first conductive layer through a second through-hole penetrating the second flat layer;
a metal contact layer disposed on a side of the pixel drive circuit layer away from the substrate and in the non-display area, provided with same conductive material as the first electrode, wherein a gap is provided between an edge of the metal contact layer and an edge of the second flat layer, and a size of the gap is greater than or equal to 10 μm along a direction from the display area to the non-display area;
a light-emitting layer disposed on a side of the first electrode away from the substrate; and
a second electrode disposed on a side of the light-emitting layer away from the substrate and electrically connected to the metal contact layer in the non-display area;
wherein the light-emitting layer comprises a plurality of light-emitting pixels, the display panel comprises a plurality of first vent holes defined in the display area, the first vent hole is defined between the first electrodes corresponding to the adjacent light-emitting pixels, one end of the first vent hole extends to the first electrode, and the other end of the first vent hole penetrates the second flat layer.