公开(公告)号：US10884282B1

公开(公告)日：2021-01-05

申请号：US16887365

申请日：2020-05-29

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G02F1/1335 ,  G02F1/13357 ,  G02F1/017 ,  F21V8/00

Abstract: Transparent display device, manufacturing method and controlling method thereof are provided. The transparent display device includes a light guide plate with a rectangular light exit, and a liquid crystal unit including multiple strip electrodes arranged in parallel and a black matrix; the black matrix includes a first and second strip-shaped light-shielding layers; an arrangement direction of the multiple strip electrodes is not parallel to any edge of the light exit; an orthographic projection of the first strip-shaped light-shielding layer on the light guide plate covers at least a center of the light exit and an extension direction of which is parallel to a first edge of the light exit, and an orthographic projection of the second strip-shaped light-shielding layer on the light guide plate covers at least the center of the light exit and an extension direction of which is parallel to another edge perpendicular to the first edge.

公开(公告)号：US10809435B2

公开(公告)日：2020-10-20

申请号：US16338307

申请日：2018-07-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei Wang ,  Xiandong Meng ,  Jifeng Tan ,  Jian Gao ,  Xiaochuan Chen ,  Jing Lv ,  Xue Dong

IPC: F21V8/00

Abstract: A backlight unit, a method for manufacturing the same and a display device are provided. The backlight unit includes a light guide plate, an LED layer and an optical microstructure layer. The light guide plate includes a light incident surface and a light exit surface opposite to the light incident surface. The LED layer is provided on the light incident surface of the light guide plate, and includes plural LED chips arranged in an array. The optical microstructure layer is provided on one of the light incident surface and the light exit surface of the light guide plate, and includes plural optical microstructures in one-to-one correspondence with the plural LED chips. Each of the plural optical microstructures is configured to cause at least a portion of light emitted from a corresponding LED chip to propagate in the light guide plate by total internal reflection.

公开(公告)号：US10754186B2

公开(公告)日：2020-08-25

申请号：US16201103

申请日：2018-11-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

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

Abstract: A display device and a display method are provided. The display device includes: a first substrate; a light guide plate opposite to the first substrate; a grating layer including gratings, on the light guide plate and at a side of the light guide plate facing towards the first substrate, wherein each grating corresponds to one pixel; and a light source at a lateral surface of the light guide plate parallel to a light emergent direction of the display device, wherein the light source includes monochromatic light emitting components and an optical component, lights of different colors emitted by the monochromatic light emitting components are incident into, via the optical component, the light guide plate at different incident angles and are emergent from the gratings, and the incident angles are greater than a total reflection angle of the light guide plate.

公开(公告)号：US10718936B2

公开(公告)日：2020-07-21

申请号：US16067980

申请日：2017-12-01

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xianqin Meng ,  Wei Wang ,  Xue Dong ,  Yafeng Yang ,  Xiaochuan Chen ,  Jifeng Tan ,  Xiandong Meng ,  Jian Gao

IPC: G02B26/00 ,  G02B5/18

Abstract: A display panel includes a light waveguide layer and a first substrate disposed opposite to each other, and further including an electrowetting control layer disposed between the light waveguide layer and the first substrate, the electrowetting control layer including a first electrode layer, a second electrode layer, and a grating layer and an electrowetting layer which are disposed between the first electrode and the second electrode layer, the grating layer and the electrowetting layer are configured to operatively couple light with a set transmittance, a setting direction, and a set wavelength out of the light waveguide layer.

公开(公告)号：US10697831B2

公开(公告)日：2020-06-30

申请号：US16448621

申请日：2019-06-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G01J3/18 ,  G01J3/02 ,  G02B27/10

Abstract: A light modulating device includes a dispersion assembly and a lens assembly, the dispersion assembly is configured to disperse light emitting from a light source into dispersed light which at least includes collimated monochromatic light and non-collimated monochromatic light; the lens assembly includes: at least a first lens component; at least a second lens component disposed in a one-to-one correspondence with the first lens component; a first absorbing layer disposed between the first lens component and the second lens component, the first absorbing layer has an opening, a focus point of the first lens component towards the first absorbing layer coincides with a focus point of the second lens component towards the first absorbing layer, the opening is disposed at the coincident focus point of the first lens component and the second lens component.

公开(公告)号：US20200183063A1

公开(公告)日：2020-06-11

申请号：US16618638

申请日：2017-12-15

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ming Zhu ,  Xue Dong ,  Meili Wang ,  Fei Wang ,  Wei Wang

IPC: G02B5/20

Abstract: The present disclosure relates to a reflective device and a display apparatus. In one embodiment, a reflective device includes: a resonant cavity configured to reflect a light of a first wavelength range; and a light conversion structure disposed within the resonant cavity and configured to convert an incident light of a second wavelength range into the light of the first wavelength range.

公开(公告)号：US10663639B2

公开(公告)日：2020-05-26

申请号：US15752629

申请日：2017-08-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei Wang ,  Yafeng Yang ,  Xiaochuan Chen ,  Xianqin Meng

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

Abstract: The disclosure provides a display device including an upper substrate (001) and a lower substrate (002) arranged opposite to each other, a liquid crystal layer (003), a wave guiding layer (004), electrode structures (005), and a collimated light source (006). The liquid crystal layer (003) is arranged between the upper substrate (001) and the lower substrate (002); the wave guiding layer (004) is arranged on a side of the lower substrate (002) facing the upper substrate (001), and a refractive index of the wave guiding layer (004) is at least greater than a refractive index of a film layer in contact with the wave guiding layer (004); the plurality of electrode structures (005) are arranged on a side of the upper substrate (001) facing the lower substrate (002), and the plurality of electrode structures (005) are arrayed in correspondence to sub-pixels in a one-to-one manner; and the collimated light source (006) is at least arranged on one side of the wave guiding layer (004). The display device can control a display grayscale.

公开(公告)号：US20200050053A1

公开(公告)日：2020-02-13

申请号：US16412811

申请日：2019-05-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

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

Abstract: The present disclosure provides a display device, a display panel, a color filter substrate, and a color filter, and relates to the field of display technology. The color filter of the present disclosure includes a grating layer and a photo-luminescent layer. The grating layer is configured to generate a surface plasmon effect under the action of incident light. The photo-luminescent layer is disposed on the light exiting surface of the grating layer.

公开(公告)号：US10551716B2

公开(公告)日：2020-02-04

申请号：US15742896

申请日：2017-07-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jian Gao ,  Xue Dong ,  Xiaochuan Chen ,  Yafeng Yang ,  Wei Wang ,  Jifeng Tan ,  Xiandong Meng

IPC: G02F1/29 ,  G02F1/1335 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/13

Abstract: Disclosed is a lens device, including: a first transparent substrate; a second transparent substrate; and a liquid crystal layer filled therebetween. The first transparent substrate is a Fresnel lens, and a surface of the Fresnel lens toward the liquid crystal layer is disposed with grooves which are spaced from one another in accordance with Fresnel wave zones. The second transparent substrate is configured to control state of a liquid crystal, such that a refractive index of the liquid crystal, when polarized light incident into the liquid crystal passes through the liquid crystal, transforms between a first refractive index of the liquid crystal and a second refractive index of the liquid crystal, wherein the first refractive index is greater than the second refractive index, and a refractive index of the Fresnel lens is substantially equal to the first refractive index of the liquid crystal in the liquid crystal layer.

公开(公告)号：US20200033514A1

公开(公告)日：2020-01-30

申请号：US16483910

申请日：2019-02-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G02B5/18 ,  G01J3/18 ,  G01J3/28

Abstract: The present disclosure relates to a dispersion apparatus. The dispersion apparatus may include an optical substrate; a grating layer on a first side of the optical substrate; and a light outlet layer on a second side of the optical substrate, the second side opposite the first side of the optical substrate. The grating layer is configured to perform dispersion of incident light into first-order diffracted beams having target wavelengths and transmit the first-order diffracted beams into the optical substrate, and wherein a diffraction angle of each of the first-order diffracted beams having the target wavelengths is smaller than a total reflection angle between the optical substrate and air. The light outlet layer is configured to extract the first-order diffracted beams having the target wavelengths in the optical substrate.