公开(公告)号：US11309526B2

公开(公告)日：2022-04-19

申请号：US16593031

申请日：2019-10-04

Applicant: LG Display Co., Ltd.

Inventor： Jung-Shik Lim ,  Sun-Man Kim ,  Min-Gyu Lee

IPC: H01L51/52 ,  H01L27/32

Abstract: A display device having a light-emitting device is provided. The display device can include a buffer insulating layer disposed on a path of light emitted from the light-emitting device. The buffer insulating layer can have a stacked structure of a first buffer insulating layer having the refractive index which decreases in a direction away from the light-emitting device, and a second buffer insulating layer having the refractive index which increases in a direction away from the light-emitting device. Thus, in the display device, the unintended constructive and destructive interference of the light emitted from the light-emitting device can be prevented. Therefore, in the display device, the luminous efficacy can be increased, and the variation of color coordinates can be prevented.

公开(公告)号：US09431633B2

公开(公告)日：2016-08-30

申请号：US14582674

申请日：2014-12-24

Applicant: LG DISPLAY CO., LTD.

Inventor： Jae-Hyun Park ,  Jae-Jung Han ,  Sun-Man Kim ,  Eun-Hee Choi

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5271 ,  H01L27/3244 ,  H01L51/52 ,  H01L51/5275 ,  H01L51/5281

Abstract: Disclosed is an organic light emitting diode display device having improved light extraction efficiency and display quality. The organic light emitting diode display device includes a plurality of sub-pixels including organic light emitting cells arranged in an inner side of a substrate, a groove formed between neighboring sub-pixels, and a light extraction pattern formed over an outer surface of the substrate.

Abstract translation: 公开了一种具有提高的光提取效率和显示质量的有机发光二极管显示装置。 有机发光二极管显示装置包括多个子像素，其包括布置在基板的内侧的有机发光单元，在相邻的子像素之间形成的沟槽和形成在基板的外表面上的光提取图案 。