公开(公告)号：US20200379285A1

公开(公告)日：2020-12-03

申请号：US16996222

申请日：2020-08-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei WANG ,  Yafeng YANG ,  Xiaochuan CHEN ,  Wenqing ZHAO ,  Zhongxiao LI ,  Jifeng TAN ,  Xianqin MENG

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/13357

Abstract: A display device and a display method thereof are provided. The display device includes: a first base substrate (10) and a second base substrate (20) which are arranged oppositely and a liquid crystal layer (30) between the first base substrate (10) and the second base substrate (20), the display device further includes: a waveguide grating (40) between the liquid crystal layer (30) and the first base substrate (10), the waveguide grating (40) including a waveguide layer (401) and a grating layer (402) on one side of the waveguide layer (401) facing the liquid crystal layer (30), and the grating layer (402) being in contact with the liquid crystal layer (30); and a collimation light source (50) on a lateral surface of the waveguide layer (401), light emitted by the collimation light source (50) being coupled into the waveguide layer (401) and output from the grating layer (402). The display device can regulate an amount of the light output from the waveguide grating by controlling changes of the refractive index of the liquid crystal layer so as to implement gray scale display.

公开(公告)号：US20200350338A1

公开(公告)日：2020-11-05

申请号：US16642584

申请日：2019-02-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ming YANG ,  Minghua XUAN ,  Can ZHANG ,  Can WANG ,  Han YUE ,  Ning CONG ,  Jiayao LIU ,  Wenqing ZHAO ,  Li XIAO ,  Dongni LIU ,  Lei WANG ,  Liang CHEN ,  Xiaochuan CHEN ,  Shengji YANG ,  Pengcheng LU

IPC: H01L27/12 ,  H01L27/32 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/1343 ,  G02F1/1335 ,  G02B30/26

Abstract: There is provided an array substrate including a plurality of pixel regions arranged in rows and columns. The plurality of pixel regions include a corresponding pixel electrode array and a corresponding pixel circuit associated with the corresponding pixel electrode array. Each of the pixel electrode arrays is arranged in rows and columns, and each pixel electrode array includes a plurality of pixel electrodes arranged in an array. The array substrate further includes a plurality of sets of gate lines extending in a row direction and a plurality of sets of data lines extending in a column direction. The plurality of sets of gate lines and rows of the pixel electrode arrays are alternately arranged with each other in the column direction. The plurality of sets of data lines and columns of the pixel regions are alternately arranged with each other in the row direction.

公开(公告)号：US20200319490A1

公开(公告)日：2020-10-08

申请号：US16305098

申请日：2018-03-06

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhongxiao LI ,  Xiaochuan CHEN ,  Wenqing ZHAO ,  Ming YANG

IPC: G02F1/133 ,  G02F1/1335 ,  G02F1/13 ,  G09G3/36

Abstract: The present disclosure discloses an anti-peep display device and an anti-peep display device. The anti-peep display device includes a display layer and a liquid crystal grating layer; the liquid crystal grating layer is disposed at a surface of the display layer, and the liquid crystal grating layer includes two layers of glass substrate and a liquid crystal layer; these two layers of glass substrate are spaced apart and oppositely disposed; the liquid crystal layer is sandwiched between the two layers of the glass substrate; by adjusting the liquid crystal layer, a plurality of gratings of the liquid crystal grating layer are controlled to switch between black and white, thereby controlling the anti-peep display device to switch between an anti-peep display mode and a shared display mode.

公开(公告)号：US20200301214A1

公开(公告)日：2020-09-24

申请号：US16089891

申请日：2018-02-06

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qian WANG ,  Xiaochuan CHEN ,  Wenqing ZHAO ,  Zhongxiao LI ,  Xiaochen NIU

IPC: G02F1/1343 ,  G02F1/1335 ,  G02F1/133

Abstract: An optical assembly, a display device and a method for driving the same are provided. The optical assembly includes two substrates disposed opposite to each other, and electrodes are disposed on the two substrates respectively. Voltages are applied to the electrodes to form a transverse electric field being configured for driving liquid crystal molecules proximal to the substrates to deflect, so that liquid crystal proximal to the two substrates both form liquid crystal lenses, thereby forming a double-layer liquid crystal lens structure. Since the two substrates of a liquid crystal cell have high alignment accuracy, the electrodes on the two substrates are consistent in spatial distribution, thereby solving mura problem.

公开(公告)号：US20200183182A1

公开(公告)日：2020-06-11

申请号：US16339063

申请日：2018-09-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ming YANG ,  Xiaochuan CHEN ,  Wenqing ZHAO ,  Chenyu CHEN ,  Jinye ZHU

IPC: G02B30/40 ,  G02F1/29 ,  G06F3/01

Abstract: A grating driving circuit, including: a grating including a plurality of grating elements, each having an on/off state controlled by a grating driving signal; a viewpoint tracker for determining a viewing distance of a viewer; a plurality of grating control electrodes with each configured to control the on/off state of a corresponding grating element in the grating according to a grating driving signal; a grating driving signal generator for generating a plurality of sets of grating driving signals with each set corresponding to a viewing distance and including a plurality of grating driving signals; and a grating driving controller for determining a set of grating driving signals corresponding to the viewing distance, and forming grating periods corresponding to the viewing distance, each grating period including a plurality of grating control electrodes that correspond to the plurality of grating driving signals in a one-to-one relationship.

公开(公告)号：US20190250442A1

公开(公告)日：2019-08-15

申请号：US16116209

申请日：2018-08-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhongxiao LI ,  Xiaochuan CHEN ,  Wenqing ZHAO

IPC: G02F1/1368 ,  G02F1/1362 ,  G02F1/1335 ,  H01L27/12 ,  G02F1/1343 ,  G09G3/36

Abstract: An array substrate and a manufacturing method thereof, a display panel and a driving method thereof, and an electronic device are disclosed. The array substrate includes a plurality of sub-pixels arranged in an array; each of the sub-pixels includes a display area and an interference area, the display area and the interference area are disposed side by side and configured to be independently driven, and the interference area is located on at least one side of the display area adjacent to a neighboring sub-pixel; the display area includes a first pixel electrode, the interference area includes a second pixel electrode, and the first pixel electrode is electrically insulated from the second pixel electrode.

公开(公告)号：US20190086699A1

公开(公告)日：2019-03-21

申请号：US15742721

申请日：2017-07-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： WEI WANG ,  Yafeng YANG ,  Xiaochuan CHEN ,  Wenqing ZHAO ,  Zhongxiao LI ,  Jifeng TAN ,  Xianqin MENG

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1343

Abstract: A display device and a display method thereof are provided. The display device includes: a first base substrate and a second base substrate which are arranged oppositely and a liquid crystal layer between the first base substrate and the second base substrate, the display device further includes: a waveguide grating between the liquid crystal layer and the first base substrate, the waveguide grating including a waveguide layer and a grating layer on one side of the waveguide layer facing the liquid crystal layer, and the grating layer being in contact with the liquid crystal layer; and a collimation light source on a lateral surface of the waveguide layer, light emitted by the collimation light source being coupled into the waveguide layer and output from the grating layer.

公开(公告)号：US20190033681A1

公开(公告)日：2019-01-31

申请号：US15540623

申请日：2016-07-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Pengcheng LU ,  Xue DONG ,  Xiaochuan CHEN ,  Qian WANG ,  Wenqing ZHAO ,  Jian GAO ,  Ming YANG ,  Lei WANG ,  Rui XU ,  Xiaochen NIU ,  Haisheng WANG ,  Shengji YANG ,  Changfeng LI

IPC: G02F1/29 ,  G02B27/22 ,  G06F3/01 ,  G06K9/00

Abstract: The present application provides a liquid crystal prism including a first substrate, a second substrate, a liquid crystal layer arranged between the first substrate and the second substrate, a face recognition circuit, a prism form determination circuit and a control circuit. The liquid crystal prism is divided into a plurality of prism units. The face recognition circuit is configured to acquire eye position information from one or more faces, and transmit the eye position information to the prism form determination circuit. The prism form determination circuit is configured to determine a prism form in accordance with a correspondence mapping table about correspondences between eye position information and prism forms, and the eye position information acquired by the face recognition circuit. The control circuit is configured to control voltages applied to the strip-like electrodes of the prism units in accordance with the prism form determined by the prism form determination circuit.

公开(公告)号：US20190018278A1

公开(公告)日：2019-01-17

申请号：US15765635

申请日：2017-09-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qian WANG ,  Xiaochuan CHEN ,  Wenqing ZHAO ,  Wei WANG ,  Jian GAO ,  Xianqin MENG ,  Zhongxiao LI ,  Chenyu CHEN

IPC: G02F1/1335 ,  G02F1/1343 ,  G02F1/13 ,  G02B5/18 ,  G02F1/1337 ,  G09G3/36

Abstract: The embodiments of the present disclosure relate to a liquid crystal grating, a display device, and methods for controlling thereof. The liquid crystal grating comprises a first substrate; a second substrate disposed opposite to the first substrate; an electrode layer disposed on the first substrate or the second substrate, wherein the electrode layer comprises at least two sets of electrodes arranged periodically, and each set of electrodes of the two sets of electrodes comprises two sub-electrodes arranged parallel to each other; a liquid crystal layer disposed between the first substrate and the second substrate; and a control unit configured to make the liquid crystal grating be operated in a transparent mode or a grating mode; when the liquid crystal grating is operated in the transparent mode, there is no voltage difference between two sub-electrodes of each set of electrodes, and between two adjacent sub-electrodes of different sets; and when the liquid crystal grating is operated in the grating mode, there is a voltage difference between two sub-electrodes of each set of electrodes, and there is no voltage difference between two adjacent sub-electrodes of different sets. The embodiments of the present disclosure can increase the viewing angle of display device, and cancel the zero-order diffraction of light of different wavelengths.

公开(公告)号：US20180348591A9

公开(公告)日：2018-12-06

申请号：US15548042

申请日：2017-01-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Qian WANG ,  Xue DONG ,  Xiaochuan CHEN ,  Wenqing ZHAO ,  Ming YANG ,  Pengcheng LU ,  Jian GAO ,  Xiaochen NIU

IPC: G02F1/29 ,  G02F1/1335 ,  H01L51/52 ,  H01L27/32

CPC classification number: G02F1/29 ,  G02F1/133528 ,  G02F1/133602 ,  G02F2001/133548 ,  G02F2201/305 ,  G02F2201/44 ,  H01L27/3232 ,  H01L27/3244 ,  H01L51/5262 ,  H01L51/5281 ,  H01L2251/5307 ,  H01L2251/5315

Abstract: Provided in the embodiments of the present disclosure are a display device and a display terminal. The display device includes a light emitting panel and at least one optical modulation unit provided on a light exit side of the light emitting panel, a grating layer being provided in the light emitting panel, or between the light emitting panel and the optical modulation unit, wherein the optical modulation unit is configured to modulate incident light to exit at a certain preset angle, and the grating layer is configured to parallelize exit directions of incident light.