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公开(公告)号：US12225177B2
公开(公告)日：2025-02-11
申请号：US17765390
申请日：2021-05-28
Applicant: BOE Technology Group Co., Ltd.
Inventor： Jian Gao , Sen Ma , Fang Cheng , Tao Hong , Jinye Zhu , Pengxia Liang , Jing Yu
IPC: H04N13/117 , H04N13/167 , H04N13/189
Abstract: The present disclosure provides a screen detection method, an apparatus and a device, a computer program and a readable medium, and belongs to the technical field of screens. The method includes: receiving a cylindrical lens detection instruction for a target screen, wherein the cylindrical lens detection instruction at least includes target viewpoints; acquiring browsing images shot from the target screen under the target viewpoints in response to the detection instruction, wherein the target screen is a screen of which the light emission side is provided with cylindrical lenses; using the browsing images as viewpoint images under the condition that the browsing images include target contents; and outputting detection parameters of the cylindrical lenses on the target screen based on image parameters of the viewpoint images.
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公开(公告)号：US12196965B2
公开(公告)日：2025-01-14
申请号：US17524643
申请日：2021-11-11
Applicant: BOE Technology Group Co., Ltd.
Inventor： Junxing Yang , Jinye Zhu , Sen Ma , Jing Yu , Tianyang Han
IPC: G02B27/01 , G02B6/34 , G02B27/12 , H04N13/341
Abstract: A display device includes: a first coupling-in module configured to couple first image light into a light guide assembly at a preset first incident angle, thereby enabling the first image light to propagate in the light guide assembly by total reflection and to be incident in a coupling-out light-splitting module; a second coupling-in module configured to couple second image light into the light guide assembly at a preset second incident angle, thereby enabling the second image light to propagate in the light guide assembly and to be incident in the coupling-out light-splitting module; a coupling-out light-splitting module configured to, couple the first and second image light out from the light guide assembly to enter a first position area and a second position area of the human eye, respectively. The first and second image light are different light field information of an identical image; and are both collimated light.
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公开(公告)号：US12066626B2
公开(公告)日：2024-08-20
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
CPC classification number: G02B27/0101 , G02B6/0026 , G02B6/005 , G02F1/29 , G02B2027/0129 , G02B2027/0152 , G02F2203/07
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.
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公开(公告)号：US12007587B2
公开(公告)日：2024-06-11
申请号：US17435312
申请日：2020-11-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Jinye Zhu , Sen Ma , Zhichong Wang , Tao Hong , Junxing Yang , Jing Yu , Tianyang Han
IPC: G02B30/31 , G02F1/133 , G02F1/1343
CPC classification number: G02B30/31 , G02F1/13306 , G02F1/134309
Abstract: The present disclosure provides a grating including: a first substrate including stacked first and second electrode layers each including strip-shaped electrodes with an identical width, strip-shaped electrodes in the first and second electrode layers arranged alternately; a second substrate opposite to the first substrate with a liquid crystal layer therebetween; driving modules for driving the strip-shaped electrodes to form light shading parts and light transmission parts, one light shading part and one adjacent light transmission part defining a grating unit, at least one grating unit defining a grating part, the driving modules arranged in one-to-one correspondence with the grating parts; and a control module for generating driving signals in one-to-one correspondence with the driving modules according to a distance between the human eyes and the grating, thereby changing a width of the grating unit corresponding to a crosstalk position. A 3D display device and a grating driving method are provided.
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公开(公告)号：US11388376B2
公开(公告)日：2022-07-12
申请号：US16473457
申请日：2019-01-03
Applicant: BOE Technology Group Co., Ltd.
Abstract: A display device is provided, including: a reflective screen; and a display assembly comprising: a light source; a light modulator provided in a direction of propagation of the light beams and a reflective display located downstream the light modulator in an optical path of the display device, the light modulator is configured to modulate the light beams alternately at two different deflection angles, and the reflective display is configured to generate a first image in response to the light beam in a first direction and a second image in response to the light beam in a second direction; and a relay optical device located downstream the reflective display in the optical path of the display device and configured to project the light beam carried with the first image and the beam carried with the second image onto two different positions on the reflective screen.
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Patent Agency Ranking
公开(公告)号：US20210096421A1
公开(公告)日：2021-04-01
申请号：US16887067
申请日：2020-05-29
Applicant: BOE Technology Group Co., Ltd.
Inventor： Sen Ma , Qian Wang , Zhongxiao Li , Qingxun Zhang , Wenqing Zhao , Xiaochuan Chen
IPC: G02F1/1335 , F21V8/00
Abstract: A display panel includes a light guide plate, a substrate, a reflector and a liquid crystal layer. A refractive index of the liquid crystal layer can vary between a minimum liquid crystal refractive index and a maximum liquid crystal refractive index. One side, facing the substrate, of the light guide plate includes a light entry region, light at least partially enters the liquid crystal layer through the light entry region and is propagated towards the reflector. The maximum liquid crystal refractive index is greater than a refractive index of the reflector, and the minimum reflective index is not greater than the refractive index of the reflector. When the refractive index of the liquid crystal layer is greater than the reflective index of the reflector, the reflector reflects at least a part of light entering the liquid crystal layer from the light entry region to the light guide plate.
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17.发明授权公开(公告)号：US12253673B2
公开(公告)日：2025-03-18
申请号：US17263586
申请日：2020-05-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Sen Ma
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 grating 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.
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公开(公告)号：US20240319517A1
公开(公告)日：2024-09-26
申请号：US18579976
申请日：2023-01-03
IPC: G02B30/27
CPC classification number: G02B30/27
Abstract: The present application provides a light-ray modulating element, an eyeglass and a 3D displaying system. The light-ray modulating element is applied to a 3D displaying system, the 3D displaying system includes a 3D displaying device, and the 3D displaying device includes a display panel, and a lens unit disposed at a light exiting side of the display panel; light rays emitted by the display panel pass through the lens unit, are shot to the light-ray modulating element, and form two first viewpoint units at a light entering side of the light-ray modulating element, wherein each of the first viewpoint units includes at least two first viewpoints; and the light-ray modulating element is configured for converging light rays emitted by each of the first viewpoint units to form a second viewpoint unit.
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公开(公告)号：US11768385B2
公开(公告)日：2023-09-26
申请号：US17355298
申请日：2021-06-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Junxing Yang , Tao Hong , Sen Ma
IPC: G02B30/27 , G02F1/1335 , H04N13/305 , G09G3/00 , H04N13/383
CPC classification number: G02B30/27 , G02F1/133538 , H04N13/305 , G09G3/003 , H04N13/383
Abstract: The present disclosure relates to a 3D display device, includes: a display panel; a lens layer arranged on a light exit side of the display panel, and including a plurality of convergent lenses arranged in an array; a human eye tracker provided on a side of the lens layer away from the display panel, the human eye tracker being used to determine spatial positions of one or more viewers' eyes relative to the display panel when facing the display panel; and a controller electrically connected to the display panel and the human eye tracker, the controller being used to receive the spatial positions and control subpixels of the display panel corresponding to the spatial positions to display image slices corresponding to the spatial positions.
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公开(公告)号：US11226514B2
公开(公告)日：2022-01-18
申请号：US16887067
申请日：2020-05-29
Applicant: BOE Technology Group Co., Ltd.
Inventor： Sen Ma , Qian Wang , Zhongxiao Li , Qingxun Zhang , Wenqing Zhao , Xiaochuan Chen
IPC: G02F1/1335 , G02F1/1339 , G02F1/13357 , F21V8/00
Abstract: A display panel includes a light guide plate, a substrate, a reflector and a liquid crystal layer. A refractive index of the liquid crystal layer can vary between a minimum liquid crystal refractive index and a maximum liquid crystal refractive index. One side, facing the substrate, of the light guide plate includes a light entry region, light at least partially enters the liquid crystal layer through the light entry region and is propagated towards the reflector. The maximum liquid crystal refractive index is greater than a refractive index of the reflector, and the minimum reflective index is not greater than the refractive index of the reflector. When the refractive index of the liquid crystal layer is greater than the reflective index of the reflector, the reflector reflects at least a part of light entering the liquid crystal layer from the light entry region to the light guide plate.
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