Search International and National Patent Collections

1. (WO2018076858) DISPLAY PANEL AND DISPLAY DEVICE

Pub. No.:    WO/2018/076858    International Application No.:    PCT/CN2017/095230
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Tue Aug 01 01:59:59 CEST 2017
IPC: G02F 1/1335
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
Inventors: TAN, Jifeng
谭纪风
WANG, Wei
王维
YANG, Yafeng
杨亚锋
CHEN, Xiaochuan
陈小川
GAO, Jian
高健
MA, Xinli
马新利
WANG, Can
王灿
ZHANG, Can
张粲
MENG, Xiandong
孟宪东
MENG, Xianqin
孟宪芹
ZHANG, Dacheng
张大成
Title: DISPLAY PANEL AND DISPLAY DEVICE
Abstract:
A display panel and a display device. The display panel comprises a first substrate (1) and a second substrate (2) that are provided opposite to each other, and a liquid crystal layer (3), a first electrode (5), and a second electrode (6) that are provided between the first substrate (1) and the second substrate (2), and further comprises a waveguide layer (4) provided between the first substrate (1) and the liquid crystal layer (3), and a plurality of grating units (7) combined and provided on a same layer with the liquid crystal layer (3). The first electrode (5) and the second electrode (6) are constructed to adjust the refractive index of the liquid crystal layer (3) by changing a voltage applied to the first electrode (5) and the second electrode (6). The grating layer comprises a plurality of grating structures that are arranged at an interval. The coupling efficiency of coupled-out light from the waveguide layer (4) is determined on the basis of a difference between the refractive index of the grating units (7) and the refractive index of the liquid crystal layer (3).