公开(公告)号：US20220199680A1

公开(公告)日：2022-06-23

申请号：US17545336

申请日：2021-12-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Dongmyung Lee ,  Yonghoon Choi ,  Sookang Kim ,  Jintae Kim

IPC: H01L27/15 ,  H01L33/38 ,  H01L33/50 ,  H01L33/62

Abstract: A light emitting display apparatus includes a substrate including a plurality of pixels each including an emission area; a light extraction pattern including a plurality of concave portions in the emission area; and a light emitting portion over the light extraction pattern, wherein at least one of the plurality of concave portions has a curvature of 0.217 μm−1 to 0.311 μm−1.

公开(公告)号：US12170308B2

公开(公告)日：2024-12-17

申请号：US17545336

申请日：2021-12-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Dongmyung Lee ,  Yonghoon Choi ,  Sookang Kim ,  Jintae Kim

IPC: H01L27/15 ,  H01L33/38 ,  H01L33/50 ,  H01L33/62

Abstract: A light emitting display apparatus includes a substrate including a plurality of pixels each including an emission area; a light extraction pattern including a plurality of concave portions in the emission area; and a light emitting portion over the light extraction pattern, wherein at least one of the plurality of concave portions has a curvature of 0.217 μm−1 to 0.311 μm−1.