US 12,096,667 B2
Display device for improving transmission efficiency of transmission parts and luminance of emission parts
Yong Il Kim, Dangjin-si (KR); Jin Bok Lee, Paju-si (KR); and Na Ra Shin, Seoul (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Jun. 10, 2021, as Appl. No. 17/344,834.
Claims priority of application No. 10-2020-0082921 (KR), filed on Jul. 6, 2020.
Prior Publication US 2022/0005916 A1, Jan. 6, 2022
Int. Cl. H10K 59/131 (2023.01); H10K 50/818 (2023.01); H10K 50/828 (2023.01); H10K 59/122 (2023.01)
CPC H10K 59/131 (2023.02) [H10K 50/818 (2023.02); H10K 50/828 (2023.02); H10K 59/122 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A display device comprising:
an auxiliary wiring disposed on a substrate;
a bank including a first hole to expose a part of the auxiliary wiring and a second hole to expose an emission part;
a light emitting device disposed at the emission part and including a first electrode, an organic layer and a second electrode; and
an auxiliary connection pattern including a reflective metal layer and a first transparent electrode layer between the auxiliary wiring and the bank, the auxiliary connection pattern connected to the auxiliary wiring,
wherein the first electrode of the light emitting device includes a first layer as a same layer as the reflective metal layer and a second layer as a same layer as the first transparent electrode layer,
wherein at least the reflective metal layer of the auxiliary connection pattern is horizontally spaced apart from a side wall of the bank to form the first hole, and
wherein the reflective metal layer of the auxiliary connection pattern does not overlap with the side wall of the bank adjacent to the first hole.