公开(公告)号：US12166023B2

公开(公告)日：2024-12-10

申请号：US17603011

申请日：2020-12-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Weiting Peng ,  Xianqin Meng ,  Yishan Tian ,  Qiuyu Ling ,  Yujiao Guo ,  Wei Wang ,  Xiaochuan Chen

IPC: H01L25/16 ,  H01L27/12 ,  H01L33/60

Abstract: Provided are a light-emitting substrate and a preparation method thereof, a light-emitting module, and a display module. The light-emitting substrate includes a substrate, a drive circuit layer located on a side of the substrate, at least one light-emitting element located on a side of the drive circuit layer away from the substrate, and a first reflective layer disposed on a side of the light-emitting element away from the substrate; the drive circuit layer includes multiple first wirings and second wirings which are disposed crosswise, and the first wirings and the second wirings form at least one light transmittance region.

公开(公告)号：US11386691B2

公开(公告)日：2022-07-12

申请号：US16605983

申请日：2019-02-13

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jian Gao ,  Xiaochuan Chen ,  Wei Wang ,  Hongli Yue ,  Wenji Zhu ,  Xiandong Meng ,  Xianqin Meng

IPC: G06V40/13 ,  G02B3/00

Abstract: The present disclosure provides an optical device, a module, an apparatus and a system for fingerprint identification. The optical device includes: a first lens array including a plurality of first lenses; a second lens array opposite to the first lens array, including a plurality of second lenses; and a light shielding element between the first lens array and the second lens array, the light shielding element including a plurality of light-transmitting apertures. Image focal planes of the plurality of second lenses, object focal planes of the plurality of first lenses, and the light shielding element are coplanar. The plurality of first lenses are in one-to-one correspondence with the plurality of second lenses and the plurality of light-transmitting apertures, respectively.

公开(公告)号：US11348904B2

公开(公告)日：2022-05-31

申请号：US16631826

申请日：2019-06-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaochuan Chen ,  Jian Gao ,  Pengxia Liang ,  Xiandong Meng ,  Xianqin Meng ,  Jifeng Tan ,  Fangzhou Wang ,  Wei Wang ,  Han Yue

IPC: H01L25/075 ,  H01L33/58 ,  H01L33/60

Abstract: A display panel is disclosed, the display array including: a substrate; a functional layer on the substrate having a plurality of recesses, at least one of the recesses in a sub-pixel region forming a well structure with a sidewall formed of the functional layer and a bottom formed of the substrate; and a plurality of micro light emitting diodes (Micro LEDs) for emitting light, at least one of the Micro LEDs within a corresponding recess; wherein the functional layer is configured to prevent at least part of the light emitted by one of the Micro LEDs and incident on the sidewall of the corresponding recess from being subsequently emitted through an adjacent sub-pixel region.

公开(公告)号：US11221441B2

公开(公告)日：2022-01-11

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 ,  G02F1/1335 ,  G02F1/13357

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：US20210354128A1

公开(公告)日：2021-11-18

申请号：US16612937

申请日：2019-06-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xianqin Meng ,  Wei Wang ,  Jifeng Tan ,  Xiandong Meng ,  Xiaochuan Chen ,  Jian Gao ,  Pengxia Liang ,  Fangzhou Wang

IPC: B01L3/00 ,  F21V8/00 ,  G01N21/31 ,  G01N21/25

Abstract: A microfluidic apparatus is provided. The microfluidic apparatus includes a base substrate; a microfluidic device on the base substrate and including a plurality of micro fluidic channels; a plurality of light sources of different colors respectively emitting light of different wavelength ranges; a light extraction apparatus for extracting light respectively from the plurality of light sources of different colors and a plurality of photosensors. The light extraction apparatus includes a light guide plate having a plurality of light incident portions for respectively receiving light respectively incident from the plurality of light sources of different colors, the plurality of light incident portions being on a side of the light guide plate away from the microfluidic device; and a plurality of light extractors on the light guide plate.

公开(公告)号：US20210341790A1

公开(公告)日：2021-11-04

申请号：US16336982

申请日：2018-03-07

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiandong Meng ,  Wei Wang ,  Xiaochuan Chen ,  Jifeng Tan ,  Xianqin Meng ,  Jian Gao ,  Fangzhou Wang

IPC: G02F1/13357 ,  G02F1/1335

Abstract: The present application discloses a liquid crystal display apparatus and a fabricating method thereof, a back light and a fabricating method thereof. The liquid crystal display apparatus includes a base substrate; a liquid crystal layer; and an anisotropic grating on a side of the liquid crystal layer distal to the base substrate. The anisotropic grating includes a plurality of barriers and a plurality of slits arranged alternately. The anisotropic grating is configured to separate incident light into light of a first color, light of a second color, and light of a third color, and configured to emit the light of the first color, the light of the second color, and the light of the third color at different exit angles, respectively.

公开(公告)号：US11156890B2

公开(公告)日：2021-10-26

申请号：US16642629

申请日：2019-03-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiandong Meng ,  Wei Wang ,  Jifeng Tan ,  Xianqin Meng ,  Fangzhou Wang ,  Qiuyu Ling

IPC: G02F1/139 ,  G02F1/1335 ,  F21V8/00 ,  G02F1/1337 ,  G02F1/13357 ,  G02F1/137 ,  G02F1/1343

Abstract: A display device and a method for controlling the display device are disclosed. The display device includes a backlight module and a liquid crystal cell on a light emitting side of the backlight module. The liquid crystal cell includes a first electrode, a second electrode disposed in a first direction opposite to the first electrode, a liquid crystal layer between the first electrode and the second electrode, and a diffractive optical element in the liquid crystal layer. A refractive index of the diffractive optical element is equal to a short-axis refractive index of a liquid crystal in the liquid crystal layer. The liquid crystal cell is divided into a first portion where the liquid crystal molecules are capable of rotating in a first plane and a second portion in a second direction perpendicular to the first direction where liquid crystal molecules are capable of rotating in a first plane.

公开(公告)号：US20210325763A1

公开(公告)日：2021-10-21

申请号：US16484223

申请日：2019-01-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jian Gao ,  Xianqin Meng

IPC: G02F1/29 ,  G02B27/01 ,  F21V8/00

Abstract: The present disclosure relates to a multifocal lens. The multifocal lens may include N liquid crystal panels in a stacked manner. The N liquid crystal panels may include an n-th liquid crystal panel, and the n-th liquid crystal panel may include an n-th converging element having an n-th focal length. N is a positive integer greater than or equal to 2, n is a positive integer, and 1≤n≤N. The n-th liquid crystal panel may be configured to be switchable between a converging state and a non-converging state. The N liquid crystal panels may be configured to make the multifocal lens to have switchable CN1+CN2+CN3+ . . . +CNN focal lengths, and the CN1+CN2+CN3+ . . . +CNN focal lengths are all different from one another.

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：US11016241B2

公开(公告)日：2021-05-25

申请号：US16633343

申请日：2018-11-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei Wang ,  Xiaochuan Chen ,  Xiandong Meng ,  Jifeng Tan ,  Pengxia Liang ,  Xianqin Meng ,  Jian Gao

IPC: G02B6/00 ,  G02B6/34 ,  G02B27/01 ,  F21V8/00 ,  G02B30/20 ,  H01L33/58 ,  H01L51/52

Abstract: A display device includes: an optical waveguide layer having a light-entering region and a light-exiting region; an optical element correspondingly arranged in the light-entering region and configured to emit at least two types of light beams having different image information, to transmit the at least two types of light beams to the light-entering region of the optical waveguide layer; at least two coupling gratings arranged on transmission paths of the at least two types of light beams in the optical waveguide layer, and configured to change a direction of each of the at least two types of light beams in the optical waveguide layer, to enable light beams in the at least two types of light beams in the optical waveguide layer to be transmitted to the light-exiting region, exit from the light-exiting region and be converged at at least one view point.