US 12,317,727 B2
Sensor-embedded display panel and electronic device
Chul Joon Heo, Busan (KR); Kyung Bae Park, Hwaseong-si (KR); Sung Young Yun, Suwon-si (KR); Hyeongju Kim, Changwon-si (KR); Feifei Fang, Suwon-si (KR); Hwijoung Seo, Hwaseong-si (KR); Juhyung Lim, Suwon-si (KR); and Taejin Choi, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Mar. 16, 2022, as Appl. No. 17/696,272.
Claims priority of application No. 10-2021-0069460 (KR), filed on May 28, 2021.
Prior Publication US 2022/0392972 A1, Dec. 8, 2022
Int. Cl. H01L 29/08 (2006.01); H10K 39/32 (2023.01); H10K 50/11 (2023.01); H10K 59/35 (2023.01); H10K 59/60 (2023.01); H10K 101/40 (2023.01)
CPC H10K 59/60 (2023.02) [H10K 39/32 (2023.02); H10K 50/11 (2023.02); H10K 59/353 (2023.02); H10K 2101/40 (2023.02)] 33 Claims
OG exemplary drawing
 
1. A sensor-embedded display panel, comprising:
a substrate;
a light emitting element on the substrate, the light emitting element including a light emitting layer; and
a photosensor on the substrate, the photosensor including a photoelectric conversion layer that is in parallel with the light emitting layer along an in-plane direction of the substrate such that the photoelectric conversion layer and the light emitting layer at least partially overlap in the in-plane direction,
wherein the light emitting element and the photosensor each include
a separate portion of a first common auxiliary layer that is a single piece of material that extends continuously on both the light emitting layer and the photoelectric conversion layer, and
a separate portion of a common electrode that is on the first common auxiliary layer and is configured to apply a common voltage to both the light emitting element and the photosensor, and
wherein the photoelectric conversion layer includes a sequential stack from the first common auxiliary layer of
a first n-type semiconductor layer,
a second n-type semiconductor layer, and
a p-type semiconductor layer.