公开(公告)号：US11303878B2

公开(公告)日：2022-04-12

申请号：US16090610

申请日：2018-02-02

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaochen Niu ,  Chenyu Chen ,  Xue Dong ,  Xiaochuan Chen ,  Wenqing Zhao

IPC: H04N13/00 ,  H04N13/305 ,  G02B30/27 ,  G02B3/00

Abstract: The present disclosure provides a three-dimensional display panel, a display method thereof, and a display device. The three-dimensional display panel includes: a first display panel, a second display panel, and a microlens array stacked sequentially; the first display panel and the second display panel have a same light exit direction, and the microlens array is located in the light exit direction; a distance between the first display panel and the microlens array is greater than a focal length of the microlens array; a distance between the second display panel and the microlens array is less than the focal length of the microlens array; and the second display panel is a transmissive display panel.

公开(公告)号：US11269224B2

公开(公告)日：2022-03-08

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 ,  G02F1/133 ,  G02F1/1335

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：US11226514B2

公开(公告)日：2022-01-18

申请号：US16887067

申请日：2020-05-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Sen Ma ,  Qian Wang ,  Zhongxiao Li ,  Qingxun Zhang ,  Wenqing Zhao ,  Xiaochuan Chen

IPC: G02F1/1335 ,  G02F1/1339 ,  G02F1/13357 ,  F21V8/00

Abstract: A display panel includes a light guide plate, a substrate, a reflector and a liquid crystal layer. A refractive index of the liquid crystal layer can vary between a minimum liquid crystal refractive index and a maximum liquid crystal refractive index. One side, facing the substrate, of the light guide plate includes a light entry region, light at least partially enters the liquid crystal layer through the light entry region and is propagated towards the reflector. The maximum liquid crystal refractive index is greater than a refractive index of the reflector, and the minimum reflective index is not greater than the refractive index of the reflector. When the refractive index of the liquid crystal layer is greater than the reflective index of the reflector, the reflector reflects at least a part of light entering the liquid crystal layer from the light entry region to the light guide plate.

公开(公告)号：US11215874B2

公开(公告)日：2022-01-04

申请号：US17196975

申请日：2021-03-09

Applicant: BOE Technology Group Co., Ltd.

Inventor： Sen Ma ,  Qian Wang ,  Tao Hong ,  Wenqing Zhao ,  Qingxun Zhang ,  Zhongxiao Li

IPC: G02F1/00 ,  G02F1/13357 ,  G02F1/1335 ,  F21V8/00

Abstract: A light collimation device, a backlight module and a display panel are provided. The light collimation device includes a lampshade and a light guiding part, wherein the lampshade includes a plurality of curved reflecting parts, a first total reflecting part and a second total reflecting part. The curved reflecting part is configured to reflect part of light from a light source arranged at a focal point of curved reflecting part to the first total reflecting part. The first total reflecting part is configured to reflect part of incident light to the second total reflecting part and directly direct another part of light to the light guiding part. The second total reflecting part is configured to reflect incident light to the light guiding part. The light guiding part is configured to cause incident light to propagate in a total reflection.

公开(公告)号：US20210364880A1

公开(公告)日：2021-11-25

申请号：US16332519

申请日：2018-11-23

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jifeng Tan ,  Xiandong Meng ,  Wei Wang ,  Jian Gao ,  Wenqing Zhao ,  Xiaochuan Chen

IPC: G02F1/29 ,  F21V8/00 ,  G09G3/36 ,  G09G3/34

Abstract: A display apparatus. The display apparatus includes a back light module; a light transmission direction controller on a light emitting side of the back light module; and a plurality of subpixels on a side of the light transmission direction controller away from the back light module, each individual one of the plurality of subpixels including a light transmissive part and a light blocking part. The back light module is configured to emit light toward the plurality of subpixels. The light transmission direction controller is configured to independently adjust a grayscale of each individual one of the plurality of subpixels by independently controlling a light distribution ratio between a first portion of light transmitted through the light transmissive part and a second portion of light blocked by the light blocking part in each individual one of the plurality of subpixels.

公开(公告)号：US11067833B2

公开(公告)日：2021-07-20

申请号：US16301860

申请日：2018-02-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Qian Wang ,  Xiaochuan Chen ,  Wenqing Zhao ,  Chenyu Chen ,  Haiyan Wang ,  Zhongxiao Li

IPC: G02C7/08 ,  G02F1/29

Abstract: The present disclosure relates to the technical field of liquid crystal display, and specifically discloses a liquid crystal lens and liquid crystal spectacles. The liquid crystal lens includes a first substrate and a second substrate arranged oppositely, a liquid crystal layer between the first substrate and the second substrate, and an electrode unit including a first electrode and a second electrode. At least one of the first electrode and the second electrode includes an annular electrode. The first electrode is located on a side of the first substrate facing the second substrate, and the second electrode is located on a side of the second substrate facing the first substrate. Under an effect of the first electrode and the second electrode, liquid crystals in the liquid crystal layer further form a Fresnel lens having an adjustable focal distance.

公开(公告)号：US11054678B2

公开(公告)日：2021-07-06

申请号：US15777233

申请日：2017-09-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhongxiao Li ,  Xue Dong ,  Xiaochuan Chen ,  Wenqing Zhao ,  Chenyu Chen ,  Ming Yang

IPC: G02F1/13 ,  G02F1/133 ,  G02F1/13357 ,  G02F1/1343 ,  G02F1/1335

Abstract: A display device and a display method. The display device includes an anti-peeping backlight module, a display panel and a regulator, the display panel being arranged on a light exit surface of the anti-peeping backlight module, and the anti-peeping backlight module being configured to emit an anti-peeping backlight; the display device has an anti-peeping OFF state and an anti-peeping ON state; wherein, in the anti-peeping OFF state, the regulator is configured to increase a divergence angle of the anti-peeping backlight so as to obtain divergent light; in the anti-peeping ON state, the regulator is configured to maintain the divergence angle of the anti-peeping backlight so as to obtain anti-peeping light. The display device and display method provided in this text can enable switching between normal display mode and an anti-peeping display mode to facilitate safe display of the display device.

公开(公告)号：US20210165267A1

公开(公告)日：2021-06-03

申请号：US15774959

申请日：2017-08-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhongxiao Li ,  Xue Dong ,  Xiaochuan Chen ,  Wenqing Zhao ,  Haiyan Wang ,  Chen-Yu Chen ,  Xiaochen Niu ,  Jinye Zhu

IPC: G02F1/1335 ,  G02F1/1362 ,  G02F1/1347 ,  G02F1/13357 ,  G02F1/1334 ,  G02F1/13 ,  G02F1/1343

Abstract: Embodiments of the present disclosure provide a display device. The display device includes: a display panel including a plurality of sub-pixels, each of the sub-pixels including at least one display unit, each display unit including a first electrode, a second electrode and a liquid crystal layer, the liquid crystal layer being configured to deflect collimated light rays incident onto the display panel by controlling electric signals applied to the first electrode and the second electrode; and an optical member configured to convert collimated light rays emitted from the liquid crystal layer into divergent light rays.

公开(公告)号：US20210141139A1

公开(公告)日：2021-05-13

申请号：US16640802

申请日：2019-08-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiandong Meng ,  Wei Wang ,  Jifeng Tan ,  Xianqin Meng ,  Wenqing Zhao ,  Qiuyu Ling ,  Xiaochuan Chen

IPC: F21V8/00 ,  G02F1/13357 ,  G02F1/1335

Abstract: A light collimation structure includes a light guide plate (1) and a light extraction unit (2) on the light guide plate (1). The light extraction unit (2) may be configured to take out lights having a filtered first color having a narrow band of spectrum, a filtered second color having a narrow band of spectrum, and a filtered third color having a narrow band of spectrum in the light guide plate (1) to provide a collimated first color light, a collimated second color light and a collimated third color light.

公开(公告)号：US11003040B2

公开(公告)日：2021-05-11

申请号：US16475954

申请日：2018-12-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chenyu Chen ,  Zhongxiao Li ,  Xiaoehen Niu ,  Jinye Zhu ,  Wenqing Zhao ,  Xiaochuan Chen

IPC: G02F1/137 ,  G02B30/27 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/155 ,  G02F1/161 ,  G02F1/163

Abstract: A grating structure includes slit regions (4) and light blocking regions (5) that are alternately distributed in a first direction. The slit regions (4) and the light blocking regions (5) extend in a second direction, and the first direction is perpendicular to the second direction. The grating structure further includes two electrode plates (10, 20) disposed oppositely, and a plurality of support columns (3) disposed between the two electrode plates (10, 20) and supporting them. At least two of the support columns (3) are spaced apart in the first direction are arranged in each of the slit regions (4).