公开(公告)号：US20230140380A1

公开(公告)日：2023-05-04

申请号：US17880871

申请日：2022-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： JUNYONG SHIN ,  SEOKGYU YOON ,  DONGKYU SEO ,  DAEHO LEE ,  BYUNGSEOK LEE ,  JIN-SOO JUNG ,  MINSOO CHOI ,  YOUNGEUN CHOI

IPC: H01L27/28

Abstract: An electronic device including: a base layer; a display element layer disposed on the base layer and including a pixel defining layer that includes an opening, and a light emitting element and a light receiving element, which are separated by the pixel defining layer; and an input sensing layer disposed on the display element layer, wherein each of the light emitting element and the light receiving element includes: a first electrode; a hole transport region disposed on the first electrode; an electron transport region disposed on the hole transport region; and a second electrode disposed on the electron transport region, wherein the second electrode is a common layer in the light emitting element and the light receiving element, the light emitting element comprises a light emitting layer disposed between the hole transport region and the electron transport region, and the light receiving element comprises a light receiving layer which is provided between the first electrode and the second electrode and disposed in a layer different from the light emitting layer in a thickness direction of the electronic device.

公开(公告)号：US20230157125A1

公开(公告)日：2023-05-18

申请号：US17885856

申请日：2022-08-11

Applicant: Samsung Display Co., Ltd.

Inventor： DONGKYU SEO ,  JUNYONG SHIN ,  SEOKGYU YOON ,  DAEHO LEE ,  BYUNGSEOK LEE ,  JIN-SOO JUNG ,  MINSOO CHOI

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52

CPC classification number: H01L27/3227 ,  H01L51/5072 ,  H01L27/3246 ,  H01L51/5056 ,  H01L51/5275 ,  H01L51/5036

Abstract: A light receiving element includes a first electrode, a hole transport region disposed on the first electrode, a light receiving layer disposed on the hole transport region and converting incident light to an electrical signal, an electron transport region disposed on the light receiving layer, and a second electrode disposed on the electron transport region. The light receiving layer includes a p-dopant compound, a donor compound, and an acceptor compound.