公开(公告)号：US20210325755A1

公开(公告)日：2021-10-21

申请号：US16971400

申请日：2019-11-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xianqin MENG ,  Xiandong MENG ,  Wei WANG ,  Xiaochuan CHEN

IPC: G02F1/166 ,  G02F1/1676 ,  G02F1/1677 ,  G02F1/16757 ,  G09G3/34

Abstract: An optical switch includes a plurality of micro-grooves, a micro-fluid disposed in each micro-groove of the plurality of micro-grooves, and a driving electrode disposed corresponding to the micro-fluid in each micro-groove. The driving electrode is configured to provide a voltage to a corresponding micro-fluid to control light transmittance of a region where the micro-fluid is located.

公开(公告)号：US20210302643A1

公开(公告)日：2021-09-30

申请号：US17265221

申请日：2020-07-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jifeng TAN ,  Xiandong MENG ,  Wenqing ZHAO ,  Xiaochuan CHEN

IPC: F21V8/00 ,  G02F1/1339 ,  G02F1/1335 ,  G02F1/1343

Abstract: A display substrate is provided. The display substrate includes: an optical waveguide; a first buffer layer at a side of the optical waveguide, the first buffer layer including a first buffer pattern and a plurality of openings defined by the first buffer pattern; and a second buffer layer at a side of the optical waveguide provided with the first buffer layer and at least covering the plurality of openings, a refractive index of the first buffer pattern is less than a refractive index of the optical waveguide, and a refractive index of the second buffer layer is greater than the refractive index of the optical waveguide. A display panel and a display device are further provided.

公开(公告)号：US20210255381A1

公开(公告)日：2021-08-19

申请号：US16649651

申请日：2019-03-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Shuilang DONG ,  Xiandong MENG ,  Wenqu LIU ,  Jifeng TAN ,  Wei TAN

IPC: F21V8/00 ,  G02B1/14 ,  C23F1/02 ,  G03F7/00

Abstract: The present disclosure provides a collimating backlight module, a preparation method thereof and a display device. The method for preparing the collimating backlight module includes: providing a light guide plate; forming a protective layer on a light emitting side of the light guide plate, where the protective layer simultaneously covers a light emitting area and a non-light emitting area of the light emitting side, a hollow area is formed on the protective layer, to expose the light emitting area of the light guide plate; and forming a light taking grating on the light emitting area of the light guide plate.

公开(公告)号：US20210231565A1

公开(公告)日：2021-07-29

申请号：US16633358

申请日：2019-07-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xianqin MENG ,  Xue DONG ,  Wei WANG ,  Jifeng TAN ,  Xiandong MENG ,  Xiaochuan CHEN ,  Jian GAO ,  Pengxia LIANG ,  Fangzhou WANG

IPC: G01N21/64 ,  H01L31/12 ,  H01L33/06 ,  H01L27/15 ,  H01L33/50

Abstract: A spectrometer and a fabrication method thereof. The spectrometer includes: a first base substrate; a second base substrate opposite to the first base substrate; a detection channel between the first base substrate and the second base substrate; a quantum dot light emitting layer on a side of the first base substrate that is close to the second base substrate, and including a plurality of quantum dot light emitting units; a black matrix on the side of the first base substrate that is close to the second base substrate, and configured to separate the plurality of quantum dot light emitting units; and a sensor layer, including a plurality of sensors the plurality of sensors being in one-to-one correspondence with the plurality of quantum dot light emitting units.

公开(公告)号：US20210149229A1

公开(公告)日：2021-05-20

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 ,  G02F1/1343 ,  G02F1/1335 ,  F21V8/00 ,  G02F1/1337 ,  G02F1/13357 ,  G02F1/137

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：US20210018674A1

公开(公告)日：2021-01-21

申请号：US16644708

申请日：2019-09-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jifeng TAN ,  Wei WANG ,  Xiandong MENG ,  Xianqin MENG ,  Jian GAO ,  Wenqing ZHAO

IPC: F21V8/00 ,  G02F1/1343 ,  G02F1/1337 ,  G02F1/13357

Abstract: Display device, control method are provided, which includes: light guide plate including light incident side, bottom surface, opposite light exiting surface; light extracting structure, on light exiting or bottom surface, configured to make light propagated in total reflection in light guide plate exit from light exiting surface at predetermined angle; first low refractive index layer, covering light exiting surface, refractive index of which being smaller than that of light guide plate; liquid crystal light adjusting layer, including liquid crystal layer and driving electrodes for driving liquid crystal molecules, on side of first low refractive index layer away from light exiting surface; second low refractive index layer, on side of liquid crystal light adjusting layer away from first low refractive index layer, refractive index of which and refractive index of first low refractive index layer being smaller than initial refractive index of liquid crystal light adjusting layer.

公开(公告)号：US20200271991A1

公开(公告)日：2020-08-27

申请号：US15776392

申请日：2017-09-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yafeng YANG ,  Wei WANG ,  Xiachuan CHEN ,  Xue DONG ,  Jifeng TAN ,  Jian GAO ,  Xiandong MENG ,  Xianqin MENG ,  Wenqing ZHAO ,  Feng GUAN ,  Lu YU ,  Congcong WEI

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

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：US20200158944A1

公开(公告)日：2020-05-21

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: 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.

公开(公告)号：US20200152612A1

公开(公告)日：2020-05-14

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：US20190212492A1

公开(公告)日：2019-07-11

申请号：US16039470

申请日：2018-07-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G02B6/122 ,  F21V8/00 ,  G02B27/09 ,  G02F1/1335

Abstract: A backlight unit includes a waveguide layer and a light source component. The waveguide layer includes a light-entering surface located its side surface, a bottom surface located at its bottom, and a light-exiting surface located at its top. A first grating layer is arranged at the bottom surface. A refractive layer is arranged at the light-exiting surface. The light source component is located beside the light-entering surface. The refractive layer includes a refractive lens unit. The refractive lens unit converges the diffracted light dispersed by means of the diffraction caused by the first grating layer when the backlight unit is in operation.