公开(公告)号：US11552275B2

公开(公告)日：2023-01-10

申请号：US17148222

申请日：2021-01-13

Applicant: LG DISPLAY CO., LTD.

Inventor： Hansun Park ,  Kangju Lee ,  SeungRyong Joung ,  Seongsu Jeon ,  Wonhoe Koo

IPC: H01L51/52 ,  H01L27/32

Abstract: An organic light-emitting display device and a method of fabricating the same. The organic light-emitting display device includes a substrate including a plurality of subpixels and an overcoat layer disposed in light-emitting areas of the plurality of subpixels. The overcoat layer includes microlenses composed of a plurality of concave portions or a plurality of convex portions. Organic electroluminescent devices are disposed on the overcoat layer. At least one subpixel of the plurality of subpixels includes first microlenses and second microlenses of the microlenses, the second microlenses being different from the first microlenses.

公开(公告)号：US10991727B2

公开(公告)日：2021-04-27

申请号：US16547224

申请日：2019-08-21

Applicant: LG Display Co., Ltd.

Inventor： Dongmin Sim ,  Kangju Lee ,  Jintae Kim

IPC: H01L27/12 ,  H01L27/32

Abstract: Disclosed is a light emitting display device that can enhance light extraction efficiency of light which is emitted from a light emitting element. The light emitting display device includes: an uneven portion that is provided on a substrate and includes a plurality of concave portions separated from each other and protruding portions between the plurality of concave portions; and a light emitting element that is provided on the uneven portion. Each protruding portion includes a vertex portion that is provided between three neighboring concave portions and a connection portion that is connected to two neighboring vertex portions between two neighboring concave portions and has a height less than that of the vertex portions.