公开(公告)号：US20230284480A1

公开(公告)日：2023-09-07

申请号：US18067543

申请日：2022-12-16

Applicant: Samsung Display Co., Ltd.

Inventor： MYOUNGJIN PARK ,  JINGOO KANG ,  SEHUN KIM ,  YOUNGIL KIM ,  JUYON LEE

IPC: H10K59/122 ,  H10K50/15 ,  H10K50/16 ,  H10K50/115 ,  H10K50/125 ,  H10K59/38 ,  H10K50/17 ,  H10K85/60 ,  C09K11/67 ,  C09K11/66 ,  C09K11/60 ,  C09K11/57

CPC classification number: H10K59/122 ,  H10K50/15 ,  H10K50/16 ,  H10K50/115 ,  H10K50/125 ,  H10K59/38 ,  H10K50/171 ,  H10K85/60 ,  C09K11/671 ,  C09K11/662 ,  C09K11/605 ,  C09K11/574

Abstract: An electronic device including first to third light emitting regions and a dummy region is provided. The electronic device includes a base layer, and a display element layer including a pixel defining film on the base layer, light emitting elements divided by the pixel defining film, and a reduction preventing layer containing a reduction preventing agent, and the light emitting elements each include an electron transport region containing a metal oxide. The electronic device may have improved electron transport function of the electron transport region by the reduction preventing agent contained in the reduction preventing layer, thereby improving the luminous efficiency.

公开(公告)号：US20220123060A1

公开(公告)日：2022-04-21

申请号：US17354210

申请日：2021-06-22

Applicant: Samsung Display Co., Ltd.

Inventor： JINGOO KANG ,  SUNGWOON KIM ,  CHANGHEE LEE

IPC: H01L27/32 ,  H01L51/56

Abstract: A display device including a first light emitting element including a first emission layer and a first charge transport layer adjacent to the first emission layer, the first emission layer including a first quantum dot to emit first light, and a second light emitting element including a second emission layer and a second charge transport layer adjacent to the second emission layer, the second emission layer including a second quantum dot to emit second light that is longer in wavelength than the first light. The first charge transport layer includes a first metal oxide. The second charge transport layer includes a second metal oxide different from the first metal oxide.