公开(公告)号：US09728749B2

公开(公告)日：2017-08-08

申请号：US14761962

申请日：2015-04-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Zhang

IPC: H01L51/00 ,  H01L51/56 ,  H01L51/52

CPC classification number: H01L51/5265 ,  H01L51/001 ,  H01L51/0011 ,  H01L51/5262 ,  H01L51/5281 ,  H01L51/56 ,  H01L2227/323

Abstract: The present invention provides an OLED array substrate, a manufacturing method thereof, an OLED display panel and an OLED display device. The OLED array substrate comprises a substrate and a plurality of pixel units provided thereon, each pixel unit comprising a TFT, and a first electrode, an organic light-emitting layer, a second electrode and an optical coupling layer sequentially arranged on the TFT, wherein the optical coupling layer comprises a bottom contacting with the second electrode and an arched top protruding towards a light-exiting direction. By forming the optical coupling layer of each pixel unit on the OLED array substrate to be the arched top optical coupling layer, the OLED array substrate, the manufacturing method thereof, the OLED display panel and the OLED display device of the present invention attenuates total reflection of light inside the optical coupling layer, thereby improving light extraction efficiency.

公开(公告)号：US09685634B2

公开(公告)日：2017-06-20

申请号：US14912633

申请日：2015-07-21

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lujiang Huangfu ,  Wenyu Ma ,  Xinwei Gao ,  Liangjian Li ,  Can Zhang

IPC: H01L33/00 ,  H01L51/52 ,  H01L27/32 ,  H01L51/00

CPC classification number: H01L51/5271 ,  H01L27/32 ,  H01L27/3246 ,  H01L27/3283 ,  H01L51/001 ,  H01L51/0011 ,  H01L51/5218 ,  H01L2227/323 ,  H01L2251/5307 ,  H01L2251/533

Abstract: A pixel structure, a display device having the pixel structure and a manufacturing method of the pixel structure are disclosed. The pixel structure comprises: a first insulation layer; a luminescent unit disposed on the first insulation layer and comprising a first electrode layer, a luminescent layer and a second electrode layer; a pixel defining layer configured for defining a pixel aperture, in which the luminescent unit is disposed; and a reflective assembly disposed around the pixel defining layer so as to reflect light entering the pixel defining layer from the luminescent layer to exit from an exit surface of the pixel structure. The reflective assembly is provided to reflect the light entering the pixel defining layer from the luminescent layer, so as to exit from the exit surface of the pixel structure. As a result, the light beams entering the pixel defining layer may be converted into effective beams for the pixel structure, thereby improving the display effect and reducing light dissipation.