公开(公告)号：US20240069357A1

公开(公告)日：2024-02-29

申请号：US17765020

申请日：2021-04-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jian GAO ,  Sen MA ,  Xiaochuan CHEN ,  Tao HONG ,  Yanliu SUN

IPC: G02B30/10 ,  G02B30/27 ,  H04N13/305 ,  H04N13/383 ,  H04N13/398

CPC classification number: G02B30/10 ,  G02B30/27 ,  H04N13/305 ,  H04N13/383 ,  H04N13/398

Abstract: A display panel includes a plurality of sets of pixel strips extending in a first direction and arranged in a second direction, each set of pixel strips includes a plurality of sub-pixel strips in different colors, spacing between every two adjacent sub-pixels in each sub-pixel strip in the first direction is smaller than or equal to 2 μm, each set of pixel strips is divided into a plurality of pixel islands arranged in an array in the first direction, each pixel island includes at least four sub-pixels extending in the first direction in each corresponding sub-pixel strip, a width of a view region formed by light emitted by each sub-pixel in each pixel island being propagated to a human eye through a corresponding lens is smaller than or equal to a pupil diameter.

公开(公告)号：US20220336510A1

公开(公告)日：2022-10-20

申请号：US17417918

申请日：2020-09-24

Applicant: BOE Technology Group Co., LTD.

Inventor： Xiaoquan HAI ,  Xiaoliang DING ,  Xuan LIANG ,  Yingzi WANG ,  Sen MA

IPC: H01L27/146 ,  G02B27/30 ,  G02B5/00 ,  G06V40/13 ,  G06V10/145 ,  G06V10/147

Abstract: The present disclosure provides a line recognition module, a fabricating method thereof and a display device. A better collimating effect may be achieved only by fabricating an optical sensing structure on a substrate in the line recognition module and then directly fabricating at least two light shading layers and a light transmitting layer with relatively simple structures, and the device structure is light and thin, which can reduce the difficulty of processing the device. The problem that the yield is affected due to blistering caused by attaching a collimating structure to the line recognition module with use of an optically clear adhesive (OCA) is avoided. Moreover, since film layers are fabricated directly on the optical sensing structure to form the collimating structure, fabrication of the collimating structure may be accomplished by using a generic device for fabrication of the film layers on an array substrate without adding new fabrication equipment.

公开(公告)号：US20220308343A1

公开(公告)日：2022-09-29

申请号：US17309835

申请日：2020-12-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Junxing YANG ,  Zhenxing ZHOU ,  Sen MA ,  Yishan TIAN

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

Abstract: There is provided a near-to-eye display device, including: an optical waveguide; at least one in-coupling grating on a surface of the optical waveguide and configured to couple received parallel light into the optical waveguide for propagating by total internal reflection; a light out-coupling structure on the surface of the optical waveguide and configured to extract the light propagating by total internal reflection in the optical waveguide to become an outgoing light from the optical waveguide; and an optical lens configured to receive the outgoing light, remain an outgoing direction of the outgoing light with a first polarization direction, and converge or diverge the outgoing light with a second polarization direction. There is further provided an augmented reality apparatus including the near-to-eye display device.

公开(公告)号：US20210311313A1

公开(公告)日：2021-10-07

申请号：US17263586

申请日：2020-05-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Sen MA

IPC: G02B27/01 ,  G02B27/42 ,  G02B27/44

Abstract: An optical waveguide element, a control method of the optical waveguide element, a display device and a display method of the display device are provided. The optical waveguide element includes an optical waveguide layer and a first grating, the first gratin overlaps with the optical waveguide layer and includes at least one first sub-grating unit, the at least one first sub-grating unit, is configured to be switchable between a diffraction state and a non-diffraction state, and the at least one first sub-grating unit in a diffraction state guides incident light in the optical waveguide layer out of the optical waveguide layer for display. The optical waveguide element is capable of adjusting the position of the light-exiting region, the utilization rate of light is high.

公开(公告)号：US20210223461A1

公开(公告)日：2021-07-22

申请号：US16954204

申请日：2020-01-06

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Sen MA

IPC: F21V8/00 ,  G02B27/01

Abstract: An optical waveguide includes an optical waveguide body having a beam in-coupling region and a beam coupling-out region, wherein: the beam in-coupling region is provided with a coupling grating configured to couple a beam into the optical waveguide body, and have the beam propagate in a total reflection manner in the optical waveguide body; the beam coupling-out region is provided with an out-coupling grating configured to couple the light beam propagating to the beam coupling-out region out of the optical waveguide body, such that the beam does not undergo secondary diffraction at the coupling grating and have continuous exit pupil expansion; and the out-coupling grating includes a transmissive out-coupling grating and a reflective out-coupling grating disposed on two sides of the optical waveguide body parallel to a beam propagation direction.