Invention Grant
- Patent Title: Light-emitting display device
-
Application No.: US15385521Application Date: 2016-12-20
-
Publication No.: US09831455B2Publication Date: 2017-11-28
- Inventor: Geun Tak Kim
- Applicant: SAMSUNG DISPLAY CO., LTD.
- Applicant Address: KR Yongin-Si, Gyeonggi-Do
- Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee Address: KR Yongin-Si, Gyeonggi-Do
- Agency: Lee & Morse, P.C.
- Priority: KR10-2014-0109588 20140822
- Main IPC: H01L51/50
- IPC: H01L51/50 ; H01L27/32 ; H01L51/52 ; H01L51/56 ; H01L51/00

Abstract:
A light-emitting display device includes a substrate having a plurality of pixels. A first electrode is provided on the substrate for each pixel, and a pixel defining layer defines each of the pixels. The pixel defining layer has an opening to expose the first electrode. A charge injection layer is on the first electrode, and a surface processing layer is on the charge injection layer. The surface processing layer extends from inside the opening of the pixel defining layer to a top surface of the pixel defining layer. The surface processing layer including a plurality of grooves in a portion extending on the top surface of the pixel defining layer. A charge transport layer is on the surface processing layer, a light-emitting layer is on the charge transport layer, and a second electrode is on the light-emitting layer.
Public/Granted literature
- US20170104173A1 LIGHT-EMITTING DISPLAY DEVICE Public/Granted day:2017-04-13
Information query
IPC分类: