US 12,437,576 B2
Display panel, display device, and preparation method for display panel
Xiaokang Zhou, Kunshan (CN); Xingxing Chen, Kunshan (CN); Hajime Yamaguchi, Hefei (CN); Kunjing Zhong, Kunshan (CN); Qingrong Ren, Kunshan (CN); and Rubo Xing, Kunshan (CN)
Assigned to Kunshan New Flat Panel Display Technology Center Co., Ltd., Kunshan (CN); and Hefei Visionox Technology Co., Ltd., Hefei (CN)
Filed by Kunshan New Flat Panel Display Technology Center Co., Ltd., Kunshan (CN); and Hefei Visionox Technology Co., Ltd., Hefei (CN)
Filed on Dec. 31, 2024, as Appl. No. 19/006,273.
Claims priority of application No. 202410084813.7 (CN), filed on Jan. 19, 2024.
Prior Publication US 2025/0239100 A1, Jul. 24, 2025
Int. Cl. G06V 40/13 (2022.01); H10K 50/165 (2023.01); H10K 59/65 (2023.01)
CPC G06V 40/1318 (2022.01) [H10K 50/165 (2023.02); H10K 59/65 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a substrate having a first side;
a light-emitting unit arranged on the first side, the light-emitting unit comprising a first hole blocking layer; and
a photoelectric sensing unit arranged on the first side, wherein the photoelectric sensing unit is configured to receive an optical signal and generate a corresponding electrical signal from the optical signal, and the photoelectric sensing unit comprises a photoelectric conversion layer, a buffer layer and a second hole blocking layer, the buffer layer being arranged on a side of the photoelectric conversion layer away from the substrate, and the second hole blocking layer being arranged on a side of the buffer layer away from the photoelectric conversion layer;
wherein the first hole blocking layer and the second hole blocking layer are made of the same material, the buffer layer has a first electrical conductivity, and the second hole blocking layer has a second electrical conductivity, the first electrical conductivity being greater than the second electrical conductivity.