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公开(公告)号:US20150049267A1
公开(公告)日:2015-02-19
申请号:US14344680
申请日:2012-09-06
Applicant: Cambridge Enterprise Limited , Dow Corning Corporation
Inventor: William Alden Crossland , Anthony Bernard Davey , John Richard Moore , Daping Chu , Jonathan Paul Hannington , Terry Clapp
IPC: G02F1/137 , G02F1/1337 , G02F1/133
CPC classification number: G02F1/13781 , C09K19/02 , C09K19/408 , G02F1/13306 , G02F1/133788 , G09G3/2007 , G09G3/2081 , G09G3/3629 , G09G3/3681 , G09G3/3692 , G09G2300/0473 , G09G2310/063 , G09G2310/065 , G09G2320/041 , G09G2380/14
Abstract: In a method of operating a liquid crystal device having a liquid crystal composition with smectic-A properties, a first waveform is applied to optically clear the device so that it is substantially transparent to visible light and a second waveform is applied to disorder the material of the liquid crystal composition to afford a strongly light-scattering state. The first waveform has a higher frequency than the second, waveform, and the method comprises applying a modified waveform to partially clear at least a portion of the device from the light-scattering state
Abstract translation: 在具有具有近晶A性质的液晶组合物的液晶装置的操作方法中,施加第一波形以光学地清除该装置,使得其对可见光基本上是透明的,并且施加第二波形以使材料 液晶组合物提供强烈的光散射状态。 第一波形具有比第二波形更高的频率,并且该方法包括施加修改的波形以从光散射状态部分地清除器件的至少一部分
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公开(公告)号:US20140363162A1
公开(公告)日:2014-12-11
申请号:US14374628
申请日:2013-01-23
Applicant: CAMBRIDGE ENTERPRISE LIMITED
Inventor: Daping Chu , Neil Collings , John Richard Moore , Mykhaylo Pivnenko , Brian Robertson
CPC classification number: H04Q11/0005 , B82Y20/00 , G02B1/11 , G02B5/1828 , G02B5/1861 , G02B5/203 , G02B5/32 , G02B6/3512 , G02B6/3524 , G02B6/3534 , G02B6/3592 , G02B27/0172 , G02B27/0927 , G02B27/0944 , G02F1/03 , G02F1/0338 , G02F1/07 , G02F1/136277 , G02F1/292 , G02F1/293 , G02F1/31 , G02F2001/13793 , G02F2201/12 , G02F2201/38 , G02F2203/06 , H04J14/0212 , H04J14/0221 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0035
Abstract: We describe methods and devices for manipulating optical signals. A method of manipulating an optical signal comprises providing a device (100) comprising a layer (106) of blue phase liquid crystal in the path of the optical signal; and applying a dynamically varying spatial pattern of voltages across the layer (106) of blue phase liquid crystal, thereby causing the refractive index of the layer (106) of blue phase liquid crystal to vary according the dynamically varying spatial pattern.
Abstract translation: 我们描述了用于操纵光信号的方法和设备。 一种操纵光信号的方法包括:在光信号的路径中提供包括蓝相液晶层(106)的装置(100); 以及在蓝相液晶层(106)上应用动态变化的电压空间图案,从而使得蓝相液晶层(106)的折射率根据动态变化的空间图案而变化。
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公开(公告)号:US11630304B2
公开(公告)日:2023-04-18
申请号:US16465096
申请日:2017-11-29
Applicant: JAGUAR LAND ROVER LIMITED , CAMBRIDGE ENTERPRISE LIMITED
Inventor: Valerian Meijering , Robert Hardy , Kun Li , Ali Yöntem , Daping Chu
IPC: G02B27/01
Abstract: An imaging system includes an image realisation device and projection optics for rendering a display image on a display screen. The image realisation device includes a first image realisation surface tilted relative to an optical axis such that a first point in a first region of the image realisation surface is at a first distance from the focal point of the projection optics and a second point in a second region of the image realisation surface is at a second different distance from the focal point of the projection optics. A first source image formed on the first region and projected through the projection optics renders the first display image on the display screen at a first apparent depth, and a second source image formed on the second region and projected through the projection optics renders the second display image on the display screen at a second apparent depth.
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公开(公告)号:US10856057B2
公开(公告)日:2020-12-01
申请号:US15435181
申请日:2017-02-16
Applicant: CAMBRIDGE ENTERPRISE LIMITED
Inventor: Daping Chu , Brian Robertson
IPC: G02F1/29 , G02B26/00 , G02F1/03 , G02F1/09 , G02B27/10 , H04Q11/00 , B82Y20/00 , G02F1/07 , H04J14/02 , G02B6/35 , G02F1/31 , G02B27/01 , G02B27/09 , G02B5/18 , G02B5/32 , G02B5/20 , G02F1/1362 , G02B1/11 , G02F1/137
Abstract: Methods and devices for manipulating optical signals. In one example, a LCOS (liquid crystal on silicon) device includes a surface bearing an anti-reflection structure. The anti-reflection structure includes i) a physical surface having a topography with features having lateral dimensions of less than 2000 nm and having an average refraction index which decreases with distance away from the surface; and ii) a configuration of the topography, averaged over lateral dimensions of greater than 2000 nm, varies with lateral position on the surface.
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公开(公告)号:US10261399B2
公开(公告)日:2019-04-16
申请号:US15859023
申请日:2017-12-29
Inventor: Zhi Huang , Brian Robertson , Daping Chu
Abstract: A projection system relates to the field of display technologies, and includes a projection unit, a screen unit, an outer frame, and a support structure component. The support structure component is configured to securely connect the screen unit to the outer frame. The support structure component is located on a light incident side of the screen unit. The support structure component includes a light transmission part and at least one connecting part. The light transmission part is securely connected to the screen unit. The light transmission part is configured to enable light rays emitted by the projection unit and irradiating the light transmission part to pass through. The at least one connecting part is located out of propagation paths of light rays emitted by the projection unit. The at least one connecting part is configured to securely connect the light transmission part to the outer frame.
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公开(公告)号:US10154253B2
公开(公告)日:2018-12-11
申请号:US15250341
申请日:2016-08-29
Applicant: DISNEY ENTERPRISES, INC. , CAMBRIDGE ENTERPRISE LIMITED
Inventor: Quinn Y. Smithwick , Xuefeng Li , Jiaqi Chu , Daping Chu
IPC: H04N13/32 , H04N13/351 , H04N13/398 , G02B27/22 , H04N13/363 , H04N13/307 , G02B27/28
Abstract: A multi-view display system or optical vortex 3D display in a multi-view or multilayer embodiment or configuration. The new 3D display system encodes and decodes images into independent modes of optical angular momentum (OAM). In some embodiments, the 3D display system uses pixel-based OAM. In such systems, transformation optics are used to sort the OAM modes. These transformation optics convert the OAMs' spiral wavefronts to linear gradient wavefronts, which are then deflected by a simple lens. The transformation optics, thus, are used in image-based (per pixel) decoding/sorting. In other embodiments, the 3D display system uses image-based OAM. In such systems, convolution of the OAM modes with the image is used rather than the direct modulation of the OAM mode and the image (as used in the prior system discussed above) for image-based encoding and decoding/sorting of images in different OAM modes.
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公开(公告)号:US20170315374A1
公开(公告)日:2017-11-02
申请号:US15643218
申请日:2017-07-06
Inventor: Jiong Zhou , Kun Li , Daping Chu
IPC: G02B27/30 , G02F1/1335 , G02F1/1339 , G02B27/22 , G02F1/1343 , G02F1/29 , G02F1/1333
CPC classification number: G02B27/30 , G02B27/22 , G02B27/2264 , G02F1/133512 , G02F1/133514 , G02F1/1339 , G02F1/1343 , G02F1/134309 , G02F1/134363 , G02F1/13439 , G02F1/29 , G02F2001/133314 , G02F2001/134345 , G02F2201/121 , G02F2201/52
Abstract: The present disclosure discloses a display apparatus, a stereoscopic display apparatus, and an application terminal thereof. The display apparatus includes a display panel and a light collimation module. The display panel includes an RGB pixel array. The RGB pixel array includes multiple RGB pixels disposed at intervals. The light collimation module includes a control electrode layer, a first transparent substrate, a liquid crystal layer, and a second transparent substrate. The control electrode layer is disposed within the intervals between the RGB pixels or at positions that are on the display panel and that are corresponding to the intervals between the RGB pixels. The first transparent substrate is disposed on the display panel and covers the control electrode. The liquid crystal layer is disposed on the first transparent substrate. The second transparent substrate is disposed on the liquid crystal layer.
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公开(公告)号:US09774930B2
公开(公告)日:2017-09-26
申请号:US14374628
申请日:2013-01-23
Applicant: CAMBRIDGE ENTERPRISE LIMITED
Inventor: Daping Chu , Neil Collings , John Richard Moore , Mykhaylo Pivnenko , Brian Robertson
IPC: G02F1/07 , G02F1/03 , G02B5/18 , H04Q11/00 , B82Y20/00 , G02F1/29 , H04J14/02 , G02B27/01 , G02B27/09 , G02B5/32 , G02B5/20 , G02F1/1362 , G02B1/11 , G02F1/137
CPC classification number: H04Q11/0005 , B82Y20/00 , G02B1/11 , G02B5/1828 , G02B5/1861 , G02B5/203 , G02B5/32 , G02B6/3512 , G02B6/3524 , G02B6/3534 , G02B6/3592 , G02B27/0172 , G02B27/0927 , G02B27/0944 , G02F1/03 , G02F1/0338 , G02F1/07 , G02F1/136277 , G02F1/292 , G02F1/293 , G02F1/31 , G02F2001/13793 , G02F2201/12 , G02F2201/38 , G02F2203/06 , H04J14/0212 , H04J14/0221 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0035
Abstract: We describe methods and devices for manipulating optical signals. A method of manipulating an optical signal comprises providing a device (100) comprising a layer (106) of blue phase liquid crystal in the path of the optical signal; and applying a dynamically varying spatial pattern of voltages across the layer (106) of blue phase liquid crystal, thereby causing the refractive index of the layer (106) of blue phase liquid crystal to vary according the dynamically varying spatial pattern.
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公开(公告)号:US20170230132A1
公开(公告)日:2017-08-10
申请号:US15435181
申请日:2017-02-16
Applicant: CAMBRIDGE ENTERPRISE LIMITED
Inventor: Daping Chu , Brian Robertson
CPC classification number: H04Q11/0005 , B82Y20/00 , G02B1/11 , G02B5/1828 , G02B5/1861 , G02B5/203 , G02B5/32 , G02B6/3512 , G02B6/3524 , G02B6/3534 , G02B6/3592 , G02B27/0172 , G02B27/0927 , G02B27/0944 , G02F1/03 , G02F1/0338 , G02F1/07 , G02F1/136277 , G02F1/292 , G02F1/293 , G02F1/31 , G02F2001/13793 , G02F2201/12 , G02F2201/38 , G02F2203/06 , H04J14/0212 , H04J14/0221 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0035
Abstract: Methods and devices for manipulating optical signals. In one example, a LCOS (liquid crystal on silicon) device includes a surface bearing an anti-reflection structure. The anti-reflection structure includes i) a physical surface having a topography with features having lateral dimensions of less than 2000 nm and having an average refraction index which decreases with distance away from the surface; and ii) a configuration of the topography, averaged over lateral dimensions of greater than 2000 nm, varies with lateral position on the surface.
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