US 12,408,529 B2
OLED display panel and display device
Changjian Song, Wuhan (CN)
Assigned to Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
Appl. No. 17/312,158
Filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
PCT Filed Apr. 15, 2021, PCT No. PCT/CN2021/087567
§ 371(c)(1), (2) Date Oct. 6, 2022,
PCT Pub. No. WO2022/205515, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 202110345292.2 (CN), filed on Mar. 31, 2021.
Prior Publication US 2024/0032368 A1, Jan. 25, 2024
Int. Cl. H10K 59/35 (2023.01); H10K 59/38 (2023.01); H10K 59/70 (2023.01); H10K 59/80 (2023.01); H10K 101/00 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/35 (2023.02) [H10K 59/38 (2023.02); H10K 59/70 (2023.02); H10K 59/877 (2023.02); H10K 59/8792 (2023.02); H10K 2101/90 (2023.02); H10K 2102/351 (2023.02)] 14 Claims
OG exemplary drawing
 
1. An organic light-emitting diode (OLED) display panel, comprising:
a plurality of pixel units comprising a red subpixel, a green subpixel, and a blue subpixel;
a substrate;
an array driving layer disposed on the substrate;
a light-emitting device layer disposed on the array driving layer and comprising a first light-emitting device emitting blue light disposed in a region of the blue subpixel, a second light-emitting device emitting red light disposed in a region of the red subpixel, and a third light-emitting device disposed in a region of the green subpixel;
a color conversion layer disposed on the light-emitting device layer, corresponding to the region of the green subpixel, and configured to convert light emitted by the third light-emitting device into green light;
a first black matrix layer, wherein the first black matrix layer is disposed in gap regions between the red subpixel, the green subpixel, and the blue subpixel, and is arranged in a same layer as the color conversion layer;
a transparent leveling layer disposed in gaps of the first black matrix layer corresponding to the region of the blue subpixel and the region of the red subpixel, wherein the transparent leveling layer is formed to have a same height as that of the first black matrix layer for planarization; and
a color resist layer disposed on the first black matrix layer, the transparent leveling layer, and the color conversion layer, wherein the color resist layer comprises a green color resist corresponding to the region of the green subpixel, a blue color resist corresponding to the region of the blue subpixel, and a red color resist corresponding to the region of the red subpixel.