公开(公告)号：US20240169940A1

公开(公告)日：2024-05-23

申请号：US18280985

申请日：2021-10-29

Applicant: Chongqing BOE Smart Electronics System Co.,Ltd. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Senlei MA ,  Lichun CHEN ,  Qiangeng CHENG ,  Kaijun DENG ,  Yuanzhuo LIU ,  Jun WU ,  Lianghui SHI

IPC: G09G3/34

CPC classification number: G09G3/344 ,  G09G2320/0257

Abstract: A driving method of an electronic paper display apparatus, including: inputting, by a controller, a first driving signal to a pixel electrode of a pixel driving circuit corresponding to a pixel which is required to display black, according to an image to be displayed; and inputting, by the controller, a second driving signal to a pixel electrode of a pixel driving circuit corresponding to a pixel which is required display white, according to the image to be displayed. A driving stage of the electronic paper display apparatus comprises a first homogenization stage which comprises a plurality of homogenization sub-stages. At a last homogenization sub-stage, the first and second driving signals comprise first and second driving sub-signals, respectively. Voltages of the first driving sub-signal and the second driving sub-signal have polarities opposite to polarities of the black particles and the white particles, respectively.

公开(公告)号：US20210364800A1

公开(公告)日：2021-11-25

申请号：US16962273

申请日：2020-02-17

Applicant: Beijing BOE Display Technology Co., Ltd. ,  BOE Technology Group Co., Ltd

Inventor： Xiaoru LIU ,  Hongshu ZHANG ,  Lianjie Qu ,  Xiaoling XU ,  Jun WU ,  Ruiyong WANG ,  Pingqi ZHANG

IPC: G02B27/01 ,  F21V8/00

Abstract: Disclosed are a near-eye display device and a near-eye display system. The excitation light source structure provides excitation light to the first waveguide structure, and the outgoing coupling grating structure corresponding to the first waveguide structure receiving the excitation light may be further irradiated by the excitation light, and be excited and output the light with a pixel color corresponding to the first waveguide structure. That is, the outgoing coupling grating structure corresponding to the first waveguide structure receiving the excitation light can derive the light with the corresponding pixel color emitted by the projection-based display, and be excited by the excitation light emitted by the excitation light source structure to output light with a pixel color corresponding to the first waveguide structure.