公开(公告)号：US11150398B2

公开(公告)日：2021-10-19

申请号：US16013692

申请日：2018-06-20

Applicant: BOE Technology Group Co., Ltd.

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

IPC: F21V8/00

Abstract: An edge-lit type backlight module and a display device are provided. The edge-lit type backlight module includes a light guide plate having a first surface and a second surface opposite to each other, as well as a first end and a second end opposite to each other, the first end and a second end having a distribution orientation parallel to the first surface; a light source disposed on the first surface of the light guide plate and being close to the first end of the light guide plate; a metal grating disposed on the second surface of the light guide plate, an orthographic projection of the metal grating on the first surface covering an orthogonal projection of the light source on the first surface.

公开(公告)号：US11126022B2

公开(公告)日：2021-09-21

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: G02F1/1335 ,  G02F1/1343 ,  G02F1/13 ,  G02F1/1337 ,  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：US10989953B2

公开(公告)日：2021-04-27

申请号：US15776392

申请日：2017-09-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yafeng Yang ,  Wei Wang ,  Xiaochuan Chen ,  Xue Dong ,  Jifeng Tan ,  Jian Gao ,  Xiandong Meng ,  Xianqin Meng ,  Wenqing Zhao ,  Feng Guan ,  Lu Yu ,  Congcong Wei

IPC: G02F1/1335 ,  G02B5/18 ,  G02B27/10 ,  G02B27/28 ,  G02B27/42

Abstract: Embodiments of the present disclosure provide a display panel, a method for manufacturing the same, and a display device, relating to the field of display technology. The display panel includes a first substrate, a second substrate, a liquid crystal layer disposed between the first substrate and the second substrate, and a light splitting structure disposed on a side of the first substrate facing away from the liquid crystal layer. The light splitting structure is configured to perform spectroscopic processing on light incident on the light splitting structure to obtain light of at least one color, and project the light of the at least one color onto a pixel of a corresponding color in the display panel.

公开(公告)号：US20210096421A1

公开(公告)日：2021-04-01

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 ,  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：US10908463B2

公开(公告)日：2021-02-02

申请号：US15769027

申请日：2017-09-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G02F1/1343 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/1337 ,  G02F1/137

Abstract: The present disclosure relates to a display panel, a display device and a control method thereof. A display panel (10) includes: two oppositely-provided base substrates (101, 102); a plurality of liquid crystal regulation units (103) provided between the two base substrates; and a light shielding region (104) and a light transmitting region (105) located on a light emissive side of each of the liquid crystal regulation units, wherein each said liquid crystal regulation unit (103) includes a regulation electrode (31a) and a liquid crystal layer (31b), and the regulation electrode (31a) is used for controlling deflection of liquid crystals in the liquid crystal layer (31b), such that beams incident obliquely towards the light shielding region (104) are reflected by the liquid crystal layer corresponding to the light shielding region (104) to the light transmitting region (105).

公开(公告)号：US10788691B2

公开(公告)日：2020-09-29

申请号：US16243720

申请日：2019-01-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhongxiao Li ,  Wenqing Zhao

IPC: G02F1/13 ,  G09G3/36 ,  G02F1/1335 ,  G02F1/1343

Abstract: The present disclosure provides a pixel unit and a method for manufacturing the same, a display panel and a method for driving the same. The pixel unit includes: a first substrate; an intermediate stack disposed on the first substrate; a first light shielding layer disposed on one side of the intermediate stack adjacent to the first substrate, wherein the first light shielding layer has an opening provided therein; and a second light shielding layer disposed on one side of the intermediate stack away from the first substrate. The second light shielding layer is disposed so that projection of the opening on the first substrate is located within projection of the second light shielding layer on the first substrate.

公开(公告)号：US10771770B2

公开(公告)日：2020-09-08

申请号：US15538038

申请日：2016-12-02

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

Inventor： Pengcheng Lu ,  Xiaochuan Chen ,  Wenqing Zhao ,  Ming Yang ,  Lei Wang ,  Rui Xu ,  Jian Gao ,  Xiaochen Niu ,  Haisheng Wang ,  Shengji Yang ,  Changfeng Li

IPC: H04N13/32 ,  H04N13/324 ,  H04N13/312 ,  G02B30/26 ,  G02B30/27 ,  H04N13/356 ,  H04N13/398 ,  G02F1/137 ,  H01L27/15

Abstract: A 3D display device and the driving method for the 3D display device are provided. The 3D display device includes a liquid crystal display panel for monochrome display, and an electroluminescence display panel for color display disposed under the liquid crystal display panel; the electroluminescence display panel includes a plurality of regions arranged in a matrix, the plurality of regions form columns of bright regions and columns of dark regions, which are arranged alternately the liquid crystal display panel includes a plurality of first sub-pixels arranged in a matrix; each bright region of the electroluminescence display panel corresponds to at least two first sub-pixels adjacent in row direction of the liquid crystal display panel.

公开(公告)号：US10754188B2

公开(公告)日：2020-08-25

申请号：US16316874

申请日：2018-02-11

Applicant: BOE Technology Group Co., Ltd.

Inventor： Qian Wang ,  Xiaochuan Chen ,  Wenqing Zhao

IPC: G02F1/1343 ,  G02F1/1335

Abstract: A liquid crystal lens and a display device, for improving the efficiency of natural light modulation and lowering the device profile. The liquid crystal lens includes an upper substrate and a lower substrate configured opposite each other, liquid crystal molecules located between the upper substrate and the lower substrate, a plurality of upper electrodes located on the upper substrate, and a plurality of lower electrodes located on the lower substrate. Each lower electrode includes a plurality of metal wire grid polarizers. The upper electrodes respectively correspond to the lower electrodes. An orthographic projection of each upper electrode and that of the corresponding lower electrode on the lower substrate form a ring-shaped electrode structure, and each upper electrode and the corresponding lower electrode are configured to receive voltages of different potential.

公开(公告)号：US10747083B2

公开(公告)日：2020-08-18

申请号：US15770348

申请日：2017-09-11

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaochen Niu ,  Xue Dong ,  Xiaochuan Chen ,  Wenqing Zhao ,  Dacheng Zhang

IPC: G02F1/29 ,  G02F1/1343

Abstract: A liquid crystal lens, a lens assembly, an optical apparatus, and a display device are provided. The liquid crystal lens includes a first transparent substrate; a second transparent substrate, provided opposite to the first transparent substrate; a liquid crystal layer, provided between the first and second transparent substrates; and at least one first electrode and at least one second electrode, both of which being provided at a side of one of the first and second transparent substrates proximal to the liquid crystal layer. The at least one first electrode and the at least one second electrode are alternately arranged to be insulated from each other and have an interval therebetween.

公开(公告)号：US10705282B2

公开(公告)日：2020-07-07

申请号：US15992890

申请日：2018-05-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: F21V8/00 ,  G02F1/13357

Abstract: The present disclosure provides a backlight module and a liquid crystal display using the same. The backlight module includes a light guide plate, a light source and a plurality of light extraction gratings. The light source is disposed at an end of the light guide plate. A plurality of light extraction gratings are disposed on a light emission surface of the light guide plate, and are arranged in an array. The plurality of light extraction gratings are divided into a plurality of regions arranged at equal intervals in a direction from the end of the light guide plate near the light source to another end of the light guide plate away from the of the light source, a gap between adjacent columns of two adjacent regions is a+b, where a is a gap between adjacent columns in the same region and b is a width of one light extraction grating.