公开(公告)号：US11835751B2

公开(公告)日：2023-12-05

申请号：US17264027

申请日：2020-05-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiandong Meng ,  Jifeng Tan ,  Shuilang Dong ,  Wei Wang ,  Wenqu Liu ,  Wenqing Zhao ,  Qiuyu Ling ,  Xianqin Meng ,  Yishan Tian ,  Zhao Kang

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/1362 ,  G02F1/13357 ,  G02F1/1333

CPC classification number: G02B6/0093 ,  G02B6/0065 ,  G02F1/133357 ,  G02F1/133368 ,  G02F1/133512 ,  G02F1/133524 ,  G02F1/133615 ,  G02F1/136209 ,  G02F2201/07 ,  G02F2201/30 ,  G02F2201/50

Abstract: A display panel and a manufacturing method thereof, and a display device. The display panel includes a light guide plate, an array substrate, a liquid crystal layer between the light guide plate and the array substrate, a plurality of light-extracting gratings located on one side of a light exit surface of the light guide plate, and a transparent protection layer between a film layer where the light-extracting gratings are located and the light guide plate. The light guide plate includes a plurality of light-extracting port areas, and transparent areas besides the light-extracting port areas; each light-extracting port area is provided with one light-extracting grating; the protection layer is at least provided on the transparent areas, and the protection layer is configured to prevent the light guide plate in the transparent areas from being excessively etched to form a plurality of depressions.

公开(公告)号：US11686982B2

公开(公告)日：2023-06-27

申请号：US17274928

申请日：2020-07-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

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

CPC classification number: G02F1/134345 ,  G02B6/0031 ,  G02B6/0038 ,  G02F1/133512

Abstract: A display panel includes: a first substrate and a second substrate; a liquid crystal layer located between the first substrate and the second substrate; pixel electrodes located on a side of the first substrate proximate to the liquid crystal layer; and a light-shielding pattern located on a side of the second substrate proximate to the liquid crystal layer. The second substrate has a light-shielding region shielded by the light-shielding pattern and light-exiting regions not shielded by the light-shielding pattern. A pixel electrode in the pixel electrodes is configured to converge light entering the pixel electrode from the first substrate; and the pixel electrode is used to control a deflection state of a liquid crystal in the liquid crystal layer, so that light passing through the pixel electrode is incident to the light-shielding pattern and/or a corresponding light-exiting region.

公开(公告)号：US11640069B2

公开(公告)日：2023-05-02

申请号：US16765097

申请日：2019-10-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G02B5/18 ,  G02B27/42 ,  G01N21/31 ,  G01N21/85 ,  F21V8/00

Abstract: The light extraction device, the detection equipment and the operation method thereof are provided. The light extraction device includes at least one light splitting unit, each of the at least one light splitting unit includes a color separation grating, configured to separate light incident on the color separation grating into a plurality of light beams that are collimated and propagated in different directions and have different colors; a first lens, disposed corresponding to the color separation grating and configured to converge the plurality of light beams; and a first pinhole, located on a side of the first lens away from the color separation grating and correspondingly arranged with the first lens. The first lens is configured to converge a light beam having a preset color in the plurality of light beams to the first pinhole and allow the light beam having the preset color to exit.

公开(公告)号：US11360365B2

公开(公告)日：2022-06-14

申请号：US16955514

申请日：2019-11-06

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G02F1/137 ,  G01N21/31 ,  G01N21/85 ,  G02F1/1335 ,  G02F1/1337

Abstract: A light modulation device and a single-channel spectrum detection system are provided. The light modulation device includes: a light guide plate; a dispersing component configured to disperse received light into light of different wavelengths and to diffract the light of different wavelengths into the light guide plate at different angles; and a dynamic filtering component configured to prevent light of a selected wavelength in the light guide plate from entering the dynamic filtering component such that the light of the selected wavelength emits out from the light guide plate, and to make light of non-selected wavelengths in the light guide plate enter the dynamic filtering component such that the light of the non-selected wavelengths is filtered out from the light guide plate.

公开(公告)号：US11336886B2

公开(公告)日：2022-05-17

申请号：US16484976

申请日：2019-03-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: H04N13/337 ,  H04N13/351 ,  G02B27/30 ,  G02B27/44

Abstract: A three-dimensional display apparatus providing a plurality of view points at a view zone includes a directional display structure including a plurality of first sub-pixels configured to display a plurality of first sub-images, and a plurality of second sub-pixels configured to display a plurality of second sub-images; a plurality of grating structures including a plurality of first grating structures configured to perform diffraction of light such that the first sub-images are directionally transmitted, and a plurality of second grating structures configured to perform diffraction of light such that the second sub-images are directionally transmitted; a reflector between the directional display structure and the view zone reflecting the first sub-images being directionally transmitted to a first view point and the second sub-images being directionally transmitted to a second view point, thereby displaying a three-dimensional image. The first and second view points can be different but within a same view zone.

公开(公告)号：US11143812B2

公开(公告)日：2021-10-12

申请号：US16607227

申请日：2019-05-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: F21V8/00 ,  G02B27/28 ,  G02F1/1335 ,  G02F1/29 ,  G02F1/1343

Abstract: The present disclosure relates to a display panel and a display device. The display panel includes: a beam splitting member disposed between a light extracting member and a liquid crystal layer, for splitting the light extracted from the light extracting member into linearly polarized lights with polarization directions perpendicular to each other; and a modulating member disposed on a side of the beam splitting member away from the light extracting member, for modulating the linearly polarized light that is incident from the beam splitting member into the liquid crystal layer.

公开(公告)号：US11119268B2

公开(公告)日：2021-09-14

申请号：US16638446

申请日：2019-10-10

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G02F1/1335 ,  F21V8/00

Abstract: A backlight module is provided. The backlight module includes a light guide plate; a plurality of reflective gratings on a first side of the light guide plate; and a plurality of reflectors on a second side of the light guide plate. A respective one of the plurality of reflective gratings is configured to diffract and reflect a portion of light totally reflected in the light guide plate into diffracted light transmitting across the light guide plate from the first side toward the second side. A portion of the diffracted light has a respective wavelength range to be received by a respective reflector. The respective one of the plurality of reflectors is configured to reflect the portion of the diffracted light having the respective wavelength range transmitting from the second side toward the first side to a position between the respective grating and an adjacent reflective grating.

公开(公告)号：US11099305B2

公开(公告)日：2021-08-24

申请号：US16862888

申请日：2020-04-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qiuyu Ling ,  Wei Wang ,  Xiandong Meng ,  Xianqin Meng ,  Meng Yan ,  Yishan Tian ,  Yujiao Guo ,  Xiaochuan Chen

IPC: G02B3/00 ,  G02B27/30

Abstract: A near-eye display apparatus includes a pixel island configured to emit first light, and a combined micro lens disposed at a light exit side of the pixel island. The combined micro lens includes an additional micro lens and a first micro lens. The additional micro lens is configured to diverge the first light emitted by the pixel island. The first micro lens is disposed at a side of the additional micro lens away from the pixel island, and is configured to collimate light passed through the additional micro lens. The pixel island is disposed on a focal plane of the combined micro lens.

公开(公告)号：US20210255384A1

公开(公告)日：2021-08-19

申请号：US16638446

申请日：2019-10-10

Applicant: BOE Technology Group Co., Ltd.

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

IPC: F21V8/00 ,  G02F1/1335

Abstract: A backlight module is provided. The backlight module includes a light guide plate; a plurality of reflective gratings on a first side of the light guide plate; and a plurality of reflectors on a second side of the light guide plate. A respective one of the plurality of reflective gratings is configured to diffract and reflect a portion of light totally reflected in the light guide plate into diffracted light transmitting across the light guide plate from the first side toward the second side. A portion of the diffracted light has a respective wavelength range to be received by a respective reflector. The respective one of the plurality of reflectors is configured to reflect the portion of the diffracted light having the respective wavelength range transmitting from the second side toward the first side to a position between the respective grating and an adjacent reflective grating.

公开(公告)号：US12111468B2

公开(公告)日：2024-10-08

申请号：US17309834

申请日：2020-12-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Meng Yan ,  Qiuyu Ling ,  Wei Wang ,  Xiaochuan Chen

IPC: G02B3/00 ,  G02B7/02 ,  G02B27/01 ,  G02B27/09 ,  G06T19/00

CPC classification number: G02B27/0172 ,  G02B3/0056 ,  G02B3/0062 ,  G02B7/021 ,  G02B27/0101 ,  G02B27/0961 ,  G06T19/006 ,  G02B2027/014 ,  G02B2027/0147

Abstract: There is provided a near-to-eye display device, including: a pixel island array, a micro-lens array and a filter layer. The pixel island array and the micro-lens array are fixed with respect to and spaced apart from each other, and the micro-lens array includes plural micro-lenses. The pixel island array includes plural pixel islands in one-to-one correspondence with the plural micro-lenses, and each pixel island emits light to the corresponding micro-lens such that the light reach a predetermined viewing position after passing through the corresponding micro-lens. The plural pixel islands emit light of plural colors, and the filter layer includes plural filter portions in one-to-one correspondence with the plural pixel islands. Each filter portion is located between the corresponding pixel island and the corresponding micro-lens, and is close to the corresponding micro-lens. Each filter portion and light emitted by the corresponding pixel island have a same color.