公开(公告)号：US20220208860A1

公开(公告)日：2022-06-30

申请号：US17562491

申请日：2021-12-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Hong Seok CHOI ,  Chun Ki KIM ,  Ahn Ki KIM ,  Kyung Hoon HAN

IPC: H01L27/32

Abstract: A light-emitting device includes a light-emitting layer between a first electrode and a second electrode, he light emitted from the light-emitting device may display a white color, the light-emitting layer may include a plurality of emission stacks, each of the emission stacks includes at least one emission material layer, one of the emission stacks may include a stacked structure of a red emission material layer and a blue emission material layer, thus improving the white balance and increasing color viewing angle.

公开(公告)号：US20210408137A1

公开(公告)日：2021-12-30

申请号：US17359429

申请日：2021-06-25

Applicant: LG Display Co., Ltd.

Inventor： Jaeho LEE ,  Wonhoe KOO ,  Kyung Hoon HAN ,  YongCheol KIM ,  Hyekyung CHOI

IPC: H01L27/32

Abstract: A display device includes, a light emitting element which is disposed in each of a plurality of subpixels and includes a first blue light emitting layer, a green light emitting layer on the first blue light emitting layer, and a second blue light emitting layer on the green light emitting layer; a first light conversion layer disposed in a first subpixel among the plurality of subpixels; and a second light conversion layer disposed in a second subpixel among the plurality of subpixels and having higher light conversion efficiency than the first light conversion layer, thus, the second light conversion layer having high light conversion efficiency is disposed in the second subpixel which is a red subpixel, thereby improving the luminance of the red light.