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公开(公告)号：US11586045B2
公开(公告)日：2023-02-21
申请号：US17206320
申请日：2021-03-19
发明人： Na Han , Chenru Wang , Ruijun Dong , Yulong Wu , Ke Li , Jiarong Bai , Hao Zhang
IPC分类号： G02B27/01 , G02B27/28 , G02B27/30 , G02F1/1335
摘要： The present disclosure discloses a near-eye display apparatus including: a first display screen and a second display screen; and a first collimating lens, a second collimating lens, a first polarization converter which converts emitted light of the first display screen into first circularly polarized light, a second polarization converter which converts emitted light of the second display screen into second circularly polarized light, a waveguide plate configured to conduct the first circularly polarized light and the second circularly polarized light, and a super lens which is located in a light emitting region of the waveguide plate.
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公开(公告)号：US11579483B2
公开(公告)日：2023-02-14
申请号：US17412101
申请日：2021-08-25
发明人： Ruijun Dong , Xue Dong , Hao Zhang , Wenhong Tian , Yulong Wu , Chenru Wang , Ke Li , Jiarong Bai , Na Han
IPC分类号： G02F1/1335 , G02F1/1343 , G06F3/01 , G02B27/01
摘要： A near-to-eye display device, includes: a display screen configured to display different images in a first time division mode, a polarization converter at a light-emitting side of the display screen and configured to convert emitted light of the different images displayed by the display screen into first circularly polarized light rays and second circularly polarized light rays in a second time division mode. Here the first circularly polarized light rays and the second circularly polarized light rays are opposite in rotation direction. The device further includes a polarization lens at a side facing away from the display screen of the polarization converter, and a focusing lens at a side facing away from the display screen of the polarization converter. The polarization lens and the focusing lens are configured to focus the first circularly polarized light rays and the second circularly polarized light rays at positions of different focal lengths.
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公开(公告)号：US11789287B2
公开(公告)日：2023-10-17
申请号：US17920334
申请日：2021-05-25
发明人： Ruijun Dong , Hao Zhang , Chenru Wang , Ke Li , Yulong Wu , Jiarong Bai , Na Han
CPC分类号： G02B30/10 , G02B6/0056 , G02B27/0101 , G02B27/0172 , G09G3/342 , G09G3/36 , G02B2027/0134 , G09G2320/0209 , G09G2320/0646 , G09G2380/10
摘要： A display system based on a four-dimensional light field, and a display method therefor. The display system includes: a light source module (11), a display panel (12), and a light conduction component (13), wherein the light source module (11) includes a plurality of light sources arranged in an array; and the display panel (12) is a reflective liquid crystal display panel, and the display panel (12) includes a plurality of pixel units arranged in an array. Light emitted by the light sources in the light source module (11) irradiates the pixel units in the display panel (12); and the pixel units in the display panel (12) transmit the received light to a target position by means of the light conduction component (13).
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公开(公告)号：US11789272B2
公开(公告)日：2023-10-17
申请号：US17405952
申请日：2021-08-18
发明人： Na Han , Chenru Wang , Ruijun Dong , Yulong Wu , Ke Li , Jiarong Bai , Hao Zhang
CPC分类号： G02B27/0172 , G02B27/145
摘要： The disclosure discloses a near-to-eye display device, including: a first display screen, a first imaging lens, a second display screen, a second imaging lens and a waveguide. The first display screen provides a first image and the first image enters the waveguide through the first imaging lens. The second display screen provides a second image, the second image enters the waveguide through the second imaging lens. Imaging light rays from the first imaging lens and the second imaging lens can emit towards a light-emitting surface of the waveguide via a light taking part, and enter the human eyes.
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公开(公告)号：US20240210599A1
公开(公告)日：2024-06-27
申请号：US17913272
申请日：2021-11-23
发明人： Lili Chen , Hao Zhang , Xue Dong , Ruijun Dong , Haitao Huang , Jiarong Bai
摘要： Provided are a device and a method for eliminating a stray light of a Fresnel lens and an optical apparatus. The device for eliminating a stray light of a Fresnel lens includes: at least one Fresnel lens body, wherein each Fresnel lens body has a flat surface and a concave-convex surface that are arranged oppositely, the concave-convex surface is provided with a plurality of optical parts, and each of the optical parts is provided with an optically working surface and an optically invalid surface; and at least one electro-barrier provided with a plurality of pixels arranged in an array, wherein the plurality of pixels are controllable to be turned on or off by an electrical signal to form a blocking region, and the blocking region is configured to block the optically invalid surface.
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