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公开(公告)号：US20220328796A1
公开(公告)日：2022-10-13
申请号：US17639189
申请日：2020-03-24
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xianqin MENG , Xiaochuan CHEN , Wei WANG , Can WANG , Weiting PENG , Sen MA , Yishan TIAN
Abstract: Disclosed in the present disclosure are a display device and a display apparatus. The display device includes: a first substrate and a second substrate opposite to the first substrate, a light-emitting pixel array between the first substrate and the second substrate, a reflective plate at a backlight side of the light-emitting pixel array, and a polarization conversion structure and a polarization filtering structure which are successively arranged at a light emission side of the light-emitting pixel array; the polarization filtering structure is for filtering light emitted from the light-emitting pixel array side to the polarization filtering structure, so that target polarized light is transmitted, and non-target deflected light is reflected back; and the polarization conversion structure is for converting transmitted circularly polarized light into linearly polarized light, or converting transmitted linearly polarized light into circularly polarized light.
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公开(公告)号：US20210278747A1
公开(公告)日：2021-09-09
申请号：US17255516
申请日：2020-04-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xianqin MENG
Abstract: A variable diaphragm and a control method thereof are provided. The variable diaphragm includes: a first substrate and a second substrate opposite to each other; a light detector on a side of the first substrate distal to the second substrate, and configured to detect an intensity of incident light and generate a first signal; an electrowetting microfluid medium layer between the first substrate and the second substrate, and including a transparent fluid medium and an opaque fluid medium immiscible with the transparent fluid medium, wherein an aperture of the variable diaphragm is formed by the transparent fluid medium, and one of the transparent fluid medium and the opaque fluid medium is a conductive medium; and a driving electrode between the first substrate and the second substrate, and configured to receive a driving voltage corresponding to the first signal and for driving the electrowetting microfluid medium layer, so as to change an area in a direction parallel to the first substrate or the second substrate of a portion of one substrate covered by the opaque fluid medium, the one substrate being one of the first substrate and the second substrate that has a larger contact area with the opaque fluid medium, thereby changing a diameter of the aperture.
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公开(公告)号：US20210181384A1
公开(公告)日：2021-06-17
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
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.
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公开(公告)号：US20210026057A1
公开(公告)日：2021-01-28
申请号：US16641776
申请日：2019-03-21
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiandong MENG , Wei WANG , Xianqin MENG , Jifeng TAN , Qiuyu LING , Fangzhou WANG , Xiaochuan CHEN
IPC: F21V8/00 , G02F1/13357 , G02F1/1335
Abstract: The present disclosure relates to a display panel. The display panel includes: a light guide member, a light extraction member and a modulation member sequentially arranged along a first direction; and wherein the light extraction member is configured to extract light propagating within the light guide member in a collimated manner to one side of the light extraction member away from the light guide member, and the modulation member is configured to modulate a reflectance and transmittance of the light extracted in a collimated manner by the light extraction member within the modulation member.
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公开(公告)号：US20200379285A1
公开(公告)日：2020-12-03
申请号：US16996222
申请日：2020-08-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wei WANG , Yafeng YANG , Xiaochuan CHEN , Wenqing ZHAO , Zhongxiao LI , Jifeng TAN , Xianqin MENG
IPC: G02F1/13 , G02F1/1335 , G02F1/1337 , G02F1/1343 , G02F1/13357
Abstract: A display device and a display method thereof are provided. The display device includes: a first base substrate (10) and a second base substrate (20) which are arranged oppositely and a liquid crystal layer (30) between the first base substrate (10) and the second base substrate (20), the display device further includes: a waveguide grating (40) between the liquid crystal layer (30) and the first base substrate (10), the waveguide grating (40) including a waveguide layer (401) and a grating layer (402) on one side of the waveguide layer (401) facing the liquid crystal layer (30), and the grating layer (402) being in contact with the liquid crystal layer (30); and a collimation light source (50) on a lateral surface of the waveguide layer (401), light emitted by the collimation light source (50) being coupled into the waveguide layer (401) and output from the grating layer (402). The display device can regulate an amount of the light output from the waveguide grating by controlling changes of the refractive index of the liquid crystal layer so as to implement gray scale display.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20200340861A1
公开(公告)日：2020-10-29
申请号：US16768543
申请日：2019-11-01
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xianqin MENG , Wei WANG , Xiaochuan CHEN , Xiandong MENG , Jifeng TAN , Jian GAO , Fangzhou WANG , Qiuyu LING , Peilin LIU
Abstract: A light splitting device includes an optical waveguide body and a dispersion grating. The optical waveguide body is configured to transmit incident light to the dispersion grating, the dispersion grating is configured to disperse the incident light transmitted by the optical waveguide body into a plurality of spectral lines, and the optical waveguide body is further configured to change propagation directions of the plurality of spectral lines and to emit the plurality of spectral lines.
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7.发明申请公开(公告)号：US20200041841A1
公开(公告)日：2020-02-06
申请号：US16340314
申请日：2018-07-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiandong MENG , Wei WANG , Jifeng TAN , Xiaochuan CHEN , Jian GAO , Xianqin MENG
IPC: G02F1/1335 , F21V8/00 , G02B6/34
Abstract: A light guiding assembly and a fabricating method, a backlight module, and a display device are provided. The light guiding assembly includes a waveguide layer, and a coupling grating structure including at least two gratings, wherein at least one of the at least two gratings is located inside the waveguide layer, and orthographic projections of the at least two gratings on a surface of the waveguide layer at least partially overlap, the coupling grating structure being configured such that incident light propagates in the waveguide layer.
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公开(公告)号：US20190339648A1
公开(公告)日：2019-11-07
申请号：US15758981
申请日：2017-08-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Jian GAO , Xiaochuan CHEN , Yafeng YANG , Can ZHANG , Wei WANG , Xianqin MENG , Can WANG , Pengcheng LU , Qian WANG
Abstract: The present disclosure provides a display apparatus and a displaying method. The display apparatus includes an optical device, a laser source at a light incident side of the optical device, a driving circuit coupled to the optical device, and a holographic image data storing device coupled to the driving circuit. The optical device includes a plurality of mutually independent optical units, the optical units are capable of refracting incident linearly polarized laser light, refractive indexes of the optical units are adjustable, and the refractive indexes of adjacent optical units are changed according to a sinusoidal curve. The driving circuit is to obtain image data of the to-be-displayed holographic image from the holographic image data storing device, and adjust the refractive index of each optical unit according to the image data. The laser source is to emit laser beams corresponding to a to-be-displayed holographic image.
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公开(公告)号：US20190086699A1
公开(公告)日：2019-03-21
申请号：US15742721
申请日：2017-07-21
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： WEI WANG , Yafeng YANG , Xiaochuan CHEN , Wenqing ZHAO , Zhongxiao LI , Jifeng TAN , Xianqin MENG
IPC: G02F1/13 , G02F1/1335 , G02F1/1337 , G02F1/1343
Abstract: A display device and a display method thereof are provided. The display device includes: a first base substrate and a second base substrate which are arranged oppositely and a liquid crystal layer between the first base substrate and the second base substrate, the display device further includes: a waveguide grating between the liquid crystal layer and the first base substrate, the waveguide grating including a waveguide layer and a grating layer on one side of the waveguide layer facing the liquid crystal layer, and the grating layer being in contact with the liquid crystal layer; and a collimation light source on a lateral surface of the waveguide layer, light emitted by the collimation light source being coupled into the waveguide layer and output from the grating layer.
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公开(公告)号：US20190018278A1
公开(公告)日：2019-01-17
申请号：US15765635
申请日：2017-09-22
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Qian WANG , Xiaochuan CHEN , Wenqing ZHAO , Wei WANG , Jian GAO , Xianqin MENG , Zhongxiao LI , Chenyu CHEN
IPC: G02F1/1335 , G02F1/1343 , G02F1/13 , G02B5/18 , G02F1/1337 , G09G3/36
Abstract: The embodiments of the present disclosure relate to a liquid crystal grating, a display device, and methods for controlling thereof. The liquid crystal grating comprises a first substrate; a second substrate disposed opposite to the first substrate; an electrode layer disposed on the first substrate or the second substrate, wherein the electrode layer comprises at least two sets of electrodes arranged periodically, and each set of electrodes of the two sets of electrodes comprises two sub-electrodes arranged parallel to each other; a liquid crystal layer disposed between the first substrate and the second substrate; and a control unit configured to make the liquid crystal grating be operated in a transparent mode or a grating mode; when the liquid crystal grating is operated in the transparent mode, there is no voltage difference between two sub-electrodes of each set of electrodes, and between two adjacent sub-electrodes of different sets; and when the liquid crystal grating is operated in the grating mode, there is a voltage difference between two sub-electrodes of each set of electrodes, and there is no voltage difference between two adjacent sub-electrodes of different sets. The embodiments of the present disclosure can increase the viewing angle of display device, and cancel the zero-order diffraction of light of different wavelengths.
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