US 12,279,486 B2
Display device with pixel electrode overlapping only a portion of contact hole
Su Jeong Kim, Seoul (KR); and Sun-Kyu Joo, Suwon-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Aug. 10, 2021, as Appl. No. 17/398,403.
Claims priority of application No. 10-2020-0133313 (KR), filed on Oct. 15, 2020.
Prior Publication US 2022/0123080 A1, Apr. 21, 2022
Int. Cl. H10K 59/124 (2023.01); H10K 59/131 (2023.01)
CPC H10K 59/124 (2023.02) [H10K 59/131 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a thin film transistor disposed on the substrate;
an insulation layer disposed on the thin film transistor and defining a contact hole having a bottom surface and a sidewall surface;
a pixel electrode disposed on the insulation layer and overlapping a portion of the contact hole less than the entire bottom surface and the entire sidewall surface in a plan view; and
a light emitting layer disposed on the pixel electrode,
wherein the pixel electrode includes:
a first portion overlapping the light emitting layer in the plan view;
a second portion overlapping a portion of a lower surface of the contact hole in the plan view; and
a third portion extending from the first portion to the second portion.