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：US20190339648A1

公开(公告)日：2019-11-07

申请号：US15758981

申请日：2017-08-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jian GAO ,  Xiaochuan CHEN ,  Yafeng YANG ,  Can ZHANG ,  Wei WANG ,  Xianqin MENG ,  Can WANG ,  Pengcheng LU ,  Qian WANG

IPC: G03H1/22 ,  G09G3/36

Abstract: The present disclosure provides a display apparatus and a displaying method. The display apparatus includes an optical device, a laser source at a light incident side of the optical device, a driving circuit coupled to the optical device, and a holographic image data storing device coupled to the driving circuit. The optical device includes a plurality of mutually independent optical units, the optical units are capable of refracting incident linearly polarized laser light, refractive indexes of the optical units are adjustable, and the refractive indexes of adjacent optical units are changed according to a sinusoidal curve. The driving circuit is to obtain image data of the to-be-displayed holographic image from the holographic image data storing device, and adjust the refractive index of each optical unit according to the image data. The laser source is to emit laser beams corresponding to a to-be-displayed holographic image.

公开(公告)号：US20190196297A1

公开(公告)日：2019-06-27

申请号：US16329896

申请日：2018-03-01

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jian GAO ,  Xue DONG ,  Xiaochuan CHEN ,  Yafeng YANG

IPC: G02F1/29

CPC classification number: G02F1/29 ,  G02B27/2214 ,  G02F1/1313 ,  G02F1/133504 ,  G02F2001/294

Abstract: This disclosure proposes a liquid crystal cell, a display and an electronic device. The liquid crystal cell comprises a first substrate and a second substrate disposed above the first substrate. The first substrate is configured to be formed with a diffraction phase grating array on a surface thereof close to the second substrate, and the diffraction phase grating array is filled with liquid crystal units. The second substrate is configured to comprise stacked first electrode layer, insulating layer and second electrode layer on a side thereof close to the first substrate.

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：US20180356567A1

公开(公告)日：2018-12-13

申请号：US15562571

申请日：2017-03-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can WANG ,  Yafeng YANG ,  Jian GAO ,  Can ZHANG ,  Xinli MA ,  Wei WANG ,  Jifeng TAN ,  Xiaochuan CHEN

IPC: G02B3/00 ,  G02F1/29 ,  G02B27/00

CPC classification number: G02B3/0056 ,  G02B27/0018 ,  G02B27/01 ,  G02F1/29

Abstract: A near eye display device and method are provided. The near eye display device including: a display panel and a lens module. The display panel includes a plurality of display areas arranged in an array, each of the display areas includes at least one pixel unit; and the lens module includes a plurality of micro-lenses arranged in an array, which include a plurality of deflection micro-lenses, an end of the deflection micro-lenses close to a center of the lens module is closer to the display panel than an end of the deflection micro-lenses far away from the center of the lens module, each of the display areas corresponds to at least one of the micro-lenses, and an adjacent portion of two adjacent display areas of the display areas corresponds to two different micro-lenses of the micro-lenses and the two different micro-lenses include at least one of the deflection micro-lenses.

公开(公告)号：US20180196255A1

公开(公告)日：2018-07-12

申请号：US15742046

申请日：2017-02-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongni LIU ,  Shengji YANG ,  Yafeng YANG ,  Xiaochuan CHEN

IPC: G02B26/08 ,  G02B3/12 ,  G02B5/06

CPC classification number: G02B26/0875 ,  G02B3/12 ,  G02B5/06 ,  G02F1/29

Abstract: The present disclosure provides a display device and driving method thereof. The display device includes a display panel, a first optical unit and a second optical unit. The first optical unit is located at a light emerging side of the display panel, and the second optical unit is located at a light emerging side of the first optical unit. The first optical unit is configured to converge light emitted from the display panel to a convergent point, and the second optical unit is configured to convert the light emitted from the convergent point into emergent light and emit the emergent light, so that a display area of the display panel observed by human eyes through the emergent light is adjustable. In this way, the display PPI of the display panel observed by the human eyes is adjustable.

公开(公告)号：US20210165270A1

公开(公告)日：2021-06-03

申请号：US15778280

申请日：2017-09-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xianqin MENG ,  Yafeng YANG ,  Jing LV ,  Xiaochuan CHEN ,  Wei WANG ,  Jifeng TAN ,  Xiandong MENG ,  Yunyun TIAN ,  Jian GAO

IPC: G02F1/1335

Abstract: In the disclosure there is provided a reflective photonic crystal color film, a display device using the same and a fabricating method therefor. The reflective photonic crystal color film includes a substrate and a two-dimensional photonic crystal structure formed on and periodically distributed over a surface of the substrate, wherein the two-dimensional photonic crystal structure comprises material containing silicon.

公开(公告)号：US20210165241A1

公开(公告)日：2021-06-03

申请号：US16067691

申请日：2017-10-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jian GAO ,  Xue DONG ,  Xiaochuan CHEN ,  Yafeng YANG ,  Pengcheng LU ,  Wei WANG ,  Xinli MA

IPC: G02B30/28 ,  G02F1/1335 ,  G02F1/1343

Abstract: A display switching device, a display device and an electronic device are provided. The display switching device includes: a controller; and a lens array, including a plurality of diffractive lenticular lenses, wherein each of the diffractive lenticular lenses includes: a first substrate, including a diffraction phase grating array; a liquid crystal element, including liquid crystal being filled in the diffraction phase grating array; a first electrode layer and a second electrode layer configured to apply a voltage to the liquid crystal element, wherein the controller is configured to acquire a corresponding display mode and apply a control voltage corresponding to the display mode to the first electrode layer and the second electrode layer according to the display mode to change a refractive index state of the liquid crystal element.

公开(公告)号：US20200004363A1

公开(公告)日：2020-01-02

申请号：US15750924

申请日：2017-08-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shengji YANG ,  Xue DONG ,  Jing LV ,  Xiaochuan CHEN ,  dongni LIU ,  Lei WANG ,  Pengcheng LU ,  Li XIAO ,  Han YUE ,  Jie FU ,  Wenqing ZHAO ,  Yafeng YANG

IPC: G06F3/041

Abstract: An in-cell transparent touch display panel, manufacturing method and driving method thereof, which relates to the technical field of display is disclosed. The transparent touch display panel includes a first electrode and a pixel defining structure on a transparent substrate, the first electrode extending along a first direction and the pixel defining structure defining a plurality of pixel regions and touch electrode regions; an organic electroluminescent layer in the pixel regions, a second electrode arranged on the organic electroluminescent layer and in the pixel regions, the second electrodes extending along a second direction; and a plurality of first touch electrodes along the first direction and a plurality of second touch electrodes along the second direction and in the touch electrode regions. The first electrodes, second electrodes, first touch electrodes and second touch electrodes are all transparent electrodes, and the first direction intersects with the second direction.

公开(公告)号：US20180364505A1

公开(公告)日：2018-12-20

申请号：US15737007

申请日：2017-07-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jifeng TAN ,  Wei WANG ,  Yafeng YANG ,  Xiaochuan CHEN ,  Jian GAO ,  Can WANG ,  Can ZHANG ,  Xinli MA ,  Xiandong MENG ,  Xianqin MENG ,  Dacheng ZHANG

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/13363

Abstract: A display panel and a display device are disclosed and belong to the field of display technology. The display panel comprises a first substrate and a second substrate opposite to each other, and a liquid crystal layer, a first electrode, as second electrode, a waveguide layer and a grating layer between the first and second substrates; wherein the waveguide layer is on a side of the liquid crystal layer proximal to the first substrate; and the grating layer is in contact with the liquid crystal layer; the first electrode and the second electrode are configured to adjust a refractive index of the liquid crystal layer by changing voltages applied thereto; and a coupling efficiency at which light is coupled out of the waveguide layer is determined according to a difference between a refractive index of the grating layer and the refractive index of the liquid crystal layer.