公开(公告)号：US20210408177A1

公开(公告)日：2021-12-30

申请号：US16639039

申请日：2019-07-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xing FAN ,  Hao GAO ,  Lujiang HUANGFU ,  Yan FAN ,  Xiangmin WEN

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: A display back panel may include a substrate, an insulating layer disposed on one side of the substrate and including a plurality of recesses, the plurality of recesses including a bottom surface, a first electrode disposed on a surface of the insulating layer away from the substrate, a pixel defining layer disposed on a surface of the first electrode away from the substrate and including a plurality of openings, a light-emitting layer disposed in the plurality of openings and covering the first electrode, and a second electrode disposed on a surface of the light-emitting layer away from the substrate. Therein, the first electrode may reflect waveguide light laterally propagated by the light-emitting layer, thereby improving a light-emitting efficiency of the light-emitting layer. Further, the reflected waveguide light may not be absorbed by the second electrode, thereby enhancing an external quantum effect of the light-emitting layer.

公开(公告)号：US20210225968A1

公开(公告)日：2021-07-22

申请号：US16632210

申请日：2018-11-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lujiang HUANGFU ,  Xing FAN ,  Zheng LIU ,  Yan FAN ,  Liangjian LI

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: A pixel structure. The pixel structure includes a base substrate; an insulating island on the base substrate; a light emitting element on a side of the insulating island away from the base substrate; an insulating layer on the base substrate and surrounding the insulating island, the insulating layer spaced apart from the insulating island by a groove; and a reflective layer on a lateral side of the insulating layer surrounding a periphery of the light emitting element, and configured to reflect light laterally emitted from the light emitting element to exit from a light emitting surface of the pixel structure. The insulating layer has a height relative to a main surface of the base substrate greater than a height of the insulating island relative to the main surface of the base substrate.