US 12,082,478 B2
Display panel and display device comprising translucent cathode layer, transparent cathode layer, and black cathode layer
Jiuhong Peng, Hubei (CN)
Assigned to Wuhan China Star Optoelectronics Technology Co., Ltd., Wuhan (CN); and Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
Appl. No. 17/298,628
Filed by Wuhan China Star Optoelectronics Technology Co., Ltd., Hubei (CN); and Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Hubei (CN)
PCT Filed May 18, 2021, PCT No. PCT/CN2021/094281
§ 371(c)(1), (2) Date May 31, 2021,
PCT Pub. No. WO2022/236847, PCT Pub. Date Nov. 17, 2022.
Claims priority of application No. 202110501820.9 (CN), filed on May 8, 2021.
Prior Publication US 2024/0130205 A1, Apr. 18, 2024
Int. Cl. H10K 59/80 (2023.01); H10K 59/122 (2023.01); H10K 102/00 (2023.01); H10K 102/10 (2023.01)
CPC H10K 59/8792 (2023.02) [H10K 59/122 (2023.02); H10K 59/80524 (2023.02); H10K 59/873 (2023.02); H10K 59/879 (2023.02); H10K 2102/103 (2023.02); H10K 2102/351 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a substrate;
a pixel definition layer, wherein the pixel definition layer is disposed on a side of the substrate, and the pixel definition layer comprises a pixel aperture region and a non-pixel aperture region;
a light emitting layer, wherein the light emitting layer is disposed in the pixel aperture region; and
a cathode layer, wherein the cathode layer comprises a black cathode layer, the black cathode layer covers the non-pixel aperture region, and the black cathode layer is configured to absorb light;
wherein the display panel further comprises an encapsulation layer, the encapsulation layer comprises a first lens layer, a second lens layer, and a third lens layer;
wherein the first lens layer covers the pixel aperture region and is disposed on a side of the cathode layer away from the light emitting layer, the second lens layer is disposed on a side of the first lens layer away from the cathode layer, and the third lens layer is disposed on a side of the second lens layer away from the first lens layer;
wherein the first lens layer comprises a plurality of first lenses, the second lens layer comprises a plurality of second lenses, the third lens layer comprises a plurality of third lenses, and a diameter of the first lenses is greater than a diameter of the second lenses, and the diameter of the second lenses is greater than a diameter of the third lenses.