US 12,356,834 B2
Organic light emitting diode display device
Keum-Kyu Min, Paju-si (KR); Min-Geun Choi, Paju-si (KR); and Yong-Hoon Choi, Paju-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on May 1, 2023, as Appl. No. 18/141,786.
Application 18/141,786 is a continuation of application No. 17/116,560, filed on Dec. 9, 2020, granted, now 11,665,927.
Claims priority of application No. 10-2019-0171040 (KR), filed on Dec. 19, 2019.
Prior Publication US 2023/0269966 A1, Aug. 24, 2023
Int. Cl. H10K 50/858 (2023.01); H10K 50/11 (2023.01); H10K 50/813 (2023.01); H10K 50/822 (2023.01); H10K 59/124 (2023.01); H10K 59/80 (2023.01); H10K 59/122 (2023.01); H10K 59/38 (2023.01)
CPC H10K 59/80521 (2023.02) [H10K 50/11 (2023.02); H10K 50/813 (2023.02); H10K 50/822 (2023.02); H10K 50/858 (2023.02); H10K 59/124 (2023.02); H10K 59/80515 (2023.02); H10K 59/879 (2023.02); H10K 59/122 (2023.02); H10K 59/38 (2023.02); H10K 59/8793 (2023.02)] 21 Claims
OG exemplary drawing
 
1. An organic light emitting diode display device, comprising:
a substrate including at least one subpixel having a non-emitting area and an emitting area;
a thin film transistor in the non-emitting area on the substrate;
an overcoating layer on the thin film transistor and having a plurality of microlenses at a top surface of the overcoating layer; and
a light emitting diode in the emitting area on the overcoating layer and connected to the thin film transistor,
wherein a surface of the plurality of microlenses is divided into a plurality of convex portions and a plurality of concave portions with respect to a central surface,
wherein each of the plurality of microlenses has a hexagonal shape in a plan view,
wherein the an interface of adjacent two of the plurality of microlenses constitute a linear edge portion, and a first high portion is disposed at a central portion of the linear edge portion,
wherein a focal point of adjacent three of the plurality of microlenses constitute a second high portion, and
wherein the second high portion is disposed higher than the first high portion.