公开(公告)号：US20250072205A1

公开(公告)日：2025-02-27

申请号：US18739214

申请日：2024-06-10

Applicant: Samsung Display Co., LTD.

Inventor： Hye Won CHOI ,  Dae Woong LEE ,  Hyeong Pil KIM ,  Il Soo OH

IPC: H10K50/19 ,  H10K50/13 ,  H10K101/30 ,  H10K101/40 ,  H10K102/00

Abstract: A light emitting element includes an anode electrode, a cathode electrode facing the anode electrode, and a light emitting structure provided between the anode electrode and the cathode electrode, and including a first light emitting unit, a charge generation layer, and a second light emitting unit. The second light emitting unit includes a second hole transport unit provided on the charge generation layer, a second light emitting layer provided on the second hole transport unit, an intermediate layer provided on the second light emitting layer, a third light emitting layer provided on the intermediate layer, and a second electron transport unit provided between the third light emitting layer and the cathode electrode.

公开(公告)号：US20240365622A1

公开(公告)日：2024-10-31

申请号：US18528592

申请日：2023-12-04

Applicant: Samsung Display Co., Ltd.

Inventor： Il Ha SONG ,  Hyo Min KO ,  Sang Gyun KIM ,  Dae Woong LEE ,  Hyeon Jeong IM ,  Hye Won CHOI

IPC: H10K59/179 ,  H10K59/122 ,  H10K59/32 ,  H10K59/38

CPC classification number: H10K59/179 ,  H10K59/122 ,  H10K59/32 ,  H10K59/38

Abstract: A display device includes: a first pixel electrode comprising a first reflective electrode in a first emission area, a first light transmitting pattern on the first reflective electrode, and a first light transmitting electrode on the first reflective electrode and the first light transmitting pattern and connected to the first reflective electrode; a second pixel electrode comprising a second reflective electrode in a second emission area and a second light transmitting electrode on the second reflective electrode; a light emitting stack on the first and second pixel electrodes and comprising at least one light emitting layer; a common electrode on the light emitting stack; and a bank pattern surrounding the first and second emission areas, and having at least a portion between the first emission area and the second emission area, wherein the first light transmitting pattern and the bank pattern contain a same material and are spaced apart.