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1. 发明授权

US06735017B1 Broadband optical retardation device 失效
标题翻译：宽带光学延迟器
公开(公告)号：US06735017B1
公开(公告)日：2004-05-11
申请号：US09555187
申请日：2000-05-25
申请人： Elizabeth Jane Acosta , Emma Jayne Beynon , Adrian Marc Simon Jacobs , Michael Geraint Robinson , Kirstin Ann Saynor , Martin David Tillin , Michael John Towler , Harry Garth Walton
发明人： Elizabeth Jane Acosta , Emma Jayne Beynon , Adrian Marc Simon Jacobs , Michael Geraint Robinson , Kirstin Ann Saynor , Martin David Tillin , Michael John Towler , Harry Garth Walton
IPC分类号： G02B2728
CPC分类号： G02B5/3083 , G02F1/13363 , G02F1/133753 , G02F1/133788 , G02F2001/133638 , G02F2413/02 , G02F2413/08 , G02F2413/09 , G02F2413/15 , H04N13/337
摘要： A broadband optical retardation device, such as may be used for polarisation encoding of display information or in diffractive optical systems, includes a patterned uniform half wave plate retarder in combination with a non-patterned uniform quarter wave plate retarder having an optic axis oriented at 90° to the xz plane. The patterned retarder consists of alternating first and second regions having first and second optic axes at different orientations to a reference axis, for example at +22.5° and −22.5° to the xz plane. Considering light of wavelength &lgr;° incident on the retarder and linearly polarised in the xy plane, such light is differently polarised by the regions, and the light output by the device includes regions in which the light is right circularly polarised and regions in which the light is left circularly polarised. In the case of incident light of wavelengths greater or less than &lgr;°, the output light becomes progressively more linearly polarised as the wavelengths departs to a greater extent from the ideal value, but not to the same extent as would be the case if the device consisted simply of a patterned single layer acting as a quarter plate retarder.
摘要翻译：诸如可用于显示信息的偏振编码或衍射光学系统中的宽带光学延迟装置包括图案化的均匀半波板延迟器，其与未图案化的均匀四分之一波片延迟器组合，其光轴定向为90° °到xz平面。图案化延迟器由交替的第一和第二区域组成，第一和第二区域具有与参考轴不同取向的第一和第二光轴，例如与xz平面成+ 22.5°和-22.5°。考虑入射到延迟器上并在xy平面上线性偏振的波长λ°的光，这种光被区域不同地偏振，并且由器件输出的光包括其中光是正向圆偏振的区域，其中光被左旋极化。在波长大于或小于λ°的入射光的情况下，随着波长从理想值更大程度地偏离，输出光逐渐变得更线性偏振，但不如与设备简单地由作为四分之一板延迟器的图案化单层组成。

2. 发明授权

US06624863B1 Method of making a patterned retarder, patterned retarder and illumination source 失效
标题翻译：制造图案化延迟器，图案化延迟器和照明源的方法
公开(公告)号：US06624863B1
公开(公告)日：2003-09-23
申请号：US09105348
申请日：1998-06-26
申请人： Adrian Marc Simon Jacobs , Elizabeth Jane Acosta , Jonathan Harrold , Michael John Towler , Harry Garth Walton
发明人： Adrian Marc Simon Jacobs , Elizabeth Jane Acosta , Jonathan Harrold , Michael John Towler , Harry Garth Walton
IPC分类号： G02F11337
CPC分类号： G02F1/133528 , G02B5/3016 , G02B5/3083 , G02B27/0093 , G02B27/26 , G02B27/283 , G02B27/285 , G02F2001/133565 , H04N13/337
摘要： A method of making a patterned retarder of the present invention includes the steps of providing an alignment layer rubbing the alignment layer in a first rubbing direction, masking with a mask at least one first region of the alignment layer, to reveal at least one second region of the alignment layer, rubbing the at least one second region through the mask in a second rubbing direction different from the first rubbing direction, removing the mask, disposing on the alignment layer a layer of birefringent material whose optic axis is aligned by the alignment layer, and fixing the optic axis of the birefringent layer.
摘要翻译：制造本发明的图案化延迟器的方法包括以下步骤：提供在第一摩擦方向上摩擦取向层的取向层，用掩模掩模取向层的至少一个第一区域，以露出至少一个第二区域的所述对准层，在与所述第一摩擦方向不同的第二摩擦方向上通过所述掩模摩擦所述至少一个第二区域，去除所述掩模，在所述取向层上设置光轴与所述取向层对准的双折射材料层并固定双折射层的光轴。

3. 发明授权

US06714276B2 Liquid crystal display device 有权
标题翻译：液晶显示装置
公开(公告)号：US06714276B2
公开(公告)日：2004-03-30
申请号：US09778027
申请日：2001-02-06
申请人： Michael John Towler , Elizabeth Jane Acosta , Harry Garth Walton , Craig Tombling , Martin David Tillin , Brian Henley , Emma Jayne Walton , Tadashi Kawamura , Akiyoshi Fujii , Yuichiro Yamada
发明人： Michael John Towler , Elizabeth Jane Acosta , Harry Garth Walton , Craig Tombling , Martin David Tillin , Brian Henley , Emma Jayne Walton , Tadashi Kawamura , Akiyoshi Fujii , Yuichiro Yamada
IPC分类号： C09K1902
CPC分类号： G02F1/1395 , G02F1/133371
摘要： A liquid crystal display device comprises: a layer of a chiral liquid crystal material disposed between first and second substrates; and means for applying a voltage across the liquid crystal layer. A first region of the liquid crystal layer is an active region for display and a second region of the liquid crystal layer is a nucleation region for generating a desired liquid crystal state in the first region when a voltage is applied across the liquid crystal layer. The ratio of the thickness d of the liquid crystal layer to the pitch p of the liquid crystal material has a first value (d/p)A in the first region of the liquid crystal layer and has a second value (d/p)N different from the first value in the second region of the liquid crystal layer. The value (d/p)N of the ratio of the thickness d of the liquid crystal layer to the pitch p of the liquid crystal material in the second region of the liquid crystal layer is selected such that, when no voltage is applied across the liquid crystal layer, the liquid crystal state stable in the second region of the liquid crystal layer is topologically equivalent to the desired liquid crystal state.
摘要翻译：液晶显示装置包括：设置在第一和第二基板之间的手性液晶材料层; 以及用于在液晶层上施加电压的装置。液晶层的第一区域是用于显示的有源区域，并且液晶层的第二区域是当在液晶层上施加电压时在第一区域中产生期望的液晶态的成核区域。液晶层的厚度d与液晶材料的间距p的比率在液晶层的第一区域中具有第一值（d / p）A，并且具有第二值（d / p）N 与液晶层的第二区域中的第一值不同。选择液晶层的第二区域中的液晶层的厚度d与液晶材料的间距p的比值（d / p）N，使得当不施加电压时液晶层的液晶状态在液晶层的第二区域稳定的液晶状态在拓扑上等同于所需的液晶状态。

4. 发明授权

US5973817A Polarization independent optical phase modulator 失效
标题翻译：偏振无关光相位调制器
公开(公告)号：US5973817A
公开(公告)日：1999-10-26
申请号：US74858
申请日：1998-05-08
申请人： Michael Geraint Robinson , Nicholas Mayhew , Duncan James Anderson , Craig Tombling , Michael John Towler , Harry Garth Walton , Martin David Tillin
发明人： Michael Geraint Robinson , Nicholas Mayhew , Duncan James Anderson , Craig Tombling , Michael John Towler , Harry Garth Walton , Martin David Tillin
IPC分类号： G02B5/30 , G02F1/1335 , G02F1/13363 , G02F1/139 , G02F1/29 , G02F1/13 , G02F1/1343
CPC分类号： G02F1/292 , G02F1/133553 , G02F1/1393 , G02F2001/133638 , G03H2222/32 , G03H2225/32
摘要： A polarization independent optical phase modulator comprises first and second substrates. A reflector is disposed between the first and second substrates and a quarterwave plate is disposed between the reflector and the first substrate. A polarization dependent electrooptic layer is disposed between the quarterwave plate and the first substrate. The quarterwave plate has an optic axis which is aligned at 45 degrees to the polarization whose phase is modulated by the electrooptic layer.
摘要翻译：偏振无关光相位调制器包括第一和第二衬底。反射器设置在第一和第二基板之间，四分之一波片设置在反射器和第一基板之间。偏振相关的电光层设置在四分之一波片和第一基底之间。四分之一波片具有与相位被电光层调制的偏振成45度对准的光轴。

5. 发明授权

US06204904B1 Reflective liquid crystal device 失效
标题翻译：反光液晶装置
公开(公告)号：US06204904B1
公开(公告)日：2001-03-20
申请号：US08961212
申请日：1997-10-30
申请人： Martin David Tillin , Michael John Towler , Kirstin Ann Saynor , Sandra Gilmour
发明人： Martin David Tillin , Michael John Towler , Kirstin Ann Saynor , Sandra Gilmour
IPC分类号： G02F11335
CPC分类号： G02F1/1393 , G02F1/13363 , G02F2001/133565 , G02F2001/133638 , G02F2001/1398 , G02F2202/40 , G02F2203/02 , G02F2413/02 , G02F2413/08 , G02F2413/15
摘要： A reflective liquid crystal device comprises a polariser and a mirror between which are disposed several retarder. At least one of the retarders is a variable liquid crystal element whose optic axis is switchable so as to switch the device between a reflective sate and a non-reflective state. In the non-reflective state, the total retardance of the retarders between the polariser and the mirror is equal to an odd number of quarter wavelengths for a wavelength at or adjacent the middle of the visible spectrum.
摘要翻译：反射型液晶装置包括偏振器和反射镜，在其间布置有多个延迟器。延迟器中的至少一个是可变的液晶元件，其光轴可切换，以便在反射状态和非反射状态之间切换装置。在非反射状态下，偏振器和反射镜之间的延迟器的总延迟等于可见光谱中间或附近的波长的四分之一波长的奇数。

6. 发明授权

US06577364B1 Reflective liquid crystal device 失效
标题翻译：反光液晶装置
公开(公告)号：US06577364B1
公开(公告)日：2003-06-10
申请号：US09705968
申请日：2000-11-03
申请人： Martin David Tillin , Michael John Towler , Kirstin Ann Saynor , Sandra Gilmour
发明人： Martin David Tillin , Michael John Towler , Kirstin Ann Saynor , Sandra Gilmour
IPC分类号： G02F11335
CPC分类号： G02F1/1393 , G02F1/13363 , G02F2001/133565 , G02F2001/133638 , G02F2001/1398 , G02F2202/40 , G02F2203/02 , G02F2413/02 , G02F2413/08 , G02F2413/15
摘要： A reflective liquid crystal device comprises a polarizer and a mirror between which are disposed several retarder. At least one of the retarders is a variable liquid crystal element whose optic axis is switchable so as to switch the device between a reflective state and a non-reflective state. In the non-reflective state, the total retardance of the retarders between the polariser and the mirror is equal to an odd number of quarter wavelengths for a wavelength at or adjacent the middle of the visible spectrum.
摘要翻译：反射型液晶装置包括偏振器和反射镜，在其间设置有多个延迟器。延迟器中的至少一个是可变的液晶元件，其光轴可切换，以便在反射状态和非反射状态之间切换装置。在非反射状态下，偏振器和反射镜之间的延迟器的总延迟等于可见光谱中间或附近的波长的四分之一波长的奇数。

7. 发明授权

US6157427A Optical device with combined alignment and anisotropic layers 失效
标题翻译：具有组合对准和各向异性层的光学器件
公开(公告)号：US6157427A
公开(公告)日：2000-12-05
申请号：US108559
申请日：1998-07-01
申请人： Kirstin Ann Saynor , Martin David Tillin , Michael John Towler , Lesley Anne Judge
发明人： Kirstin Ann Saynor , Martin David Tillin , Michael John Towler , Lesley Anne Judge
IPC分类号： G02B5/30 , G02F1/1335 , G02F1/13363 , G02F1/1337 , G02F1/139
CPC分类号： G02F1/133711 , G02F1/133528 , G02F1/13725 , G02F1/1396 , G02F2001/133638 , G02F2203/02 , G02F2413/15
摘要： An optical device of the present invention, includes: an anisotropic layer containing anisotropic molecules, and an alignment layer adjacent the anisotropic layer. The alignment layer serves to align the anisotropic molecules in an adjacent surface region of said anisotropic layer. The alignment layer also includes a twisted molecular structure so as to define a twisted optical retarder.
摘要翻译：本发明的光学元件包括：含有各向异性分子的各向异性层和邻近各向异性层的配向层。取向层用于使所述各向异性层的相邻表面区域中的各向异性分子对齐。取向层还包括扭曲的分子结构，以便限定扭曲的光学延迟器。

8. 发明授权

US06600537B2 Liquid crystal device 有权
标题翻译：液晶装置
公开(公告)号：US06600537B2
公开(公告)日：2003-07-29
申请号：US10044828
申请日：2002-01-11
申请人： Michael John Towler , Elizabeth Jane Acosta , Harry Garth Walton
发明人： Michael John Towler , Elizabeth Jane Acosta , Harry Garth Walton
IPC分类号： G02F11337
CPC分类号： G02F1/1395
摘要： A pi-cell liquid crystal device comprises a nematic liquid crystal layer (17) disposed between alignment layers (14,15) which provide a pretilt such that, at a zero applied field, the energy of the H-state is less than the energy of the V-state, which is less than the energy of the T-state. A drive arrangement (18) switches the pi-cell by applying a first electric field, at which the energy of the V-state is less than the energy of each of the H-state and the T-state, or a second smaller electric field, at which the energy of the H-state is less than the energy of each of the V-state and the T-state. The T-state may thus be avoided while maintaining high switching speeds.
摘要翻译： Pi单元液晶装置包括设置在取向层（14,15）之间的向列型液晶层（17），其提供预倾斜，使得在零施加场处，H态的能量小于能量的V状态，其小于T态的能量。驱动装置（18）通过施加V状态的能量小于H状态和T状态中的每一个的能量的第一电场或第二较小的电 H状态的能量小于V状态和T态的能量的场。因此可以在保持高切换速度的同时避免T状态。

9. 发明授权

US06222672B1 Imaging systems 有权
标题翻译：成像系统
公开(公告)号：US06222672B1
公开(公告)日：2001-04-24
申请号：US09199295
申请日：1998-11-24
申请人： Michael John Towler , Harry Garth Walton , Elizabeth Jane Acosta
发明人： Michael John Towler , Harry Garth Walton , Elizabeth Jane Acosta
IPC分类号： G02B2726
CPC分类号： G02B27/26 , H04N13/337 , H04N13/359 , H04N13/363
摘要： An imaging system according to the invention includes: a matrix of light modulating elements including first and second elements for respectively transmitting first and second image components; a polarizing element having a first polarization axis for linearly polarizing light from the first and second elements; a first optical retardation element incorporating at least one first retarder having first and second regions respectively having a first optic axis at a first orientation and a second option axis at a second orientation to the first polarization axis; and a detecting element having first and second detecting parts, each detecting part including respective second optical retardation element incorporating at least one second retarder and an analyzing element having a second polarization axis intended to be disposed at a defined orientation relative to the first polarization axis, at least one second retarder of the first detecting part having an optic axis which is intended to be disposed substantially perpendicularly to the first optic axis and transversely to the second optic axis of the at least one first retarder, and at least one second retarder of the second detecting part having an optic axis which is intended to be disposed substantially perpendicularly to the second optic axis and transversely to the first optic axis of the at least one first retarder. Substantially only light relating to the first image component is transmitted by the first detecting part and substantially only light relating to the second image component is transmitted by the second detecting part.
摘要翻译：根据本发明的成像系统包括：光调制元件矩阵，包括用于分别发射第一和第二图像分量的第一和第二元件; 具有用于使来自第一和第二元件的光线性偏振的第一偏振轴的偏振元件; 第一光学延迟元件包括至少一个第一延迟器，其具有第一和第二区域，第一和第二区域分别具有第一取向的第一光轴和与第一偏振轴成第二取向的第二选择轴; 以及具有第一和第二检测部分的检测元件，每个检测部分包括相应的第二光学延迟元件，所述第二光学延迟元件包括至少一个第二延迟器和具有第二偏振轴的分析元件，所述第二偏振轴将相对于所述第一偏振轴以规定的方向设置，所述第一检测部分的至少一个第二延迟器具有旨在基本上垂直于所述第一光轴并且横向于所述至少一个第一延迟器的第二光轴布置的光轴，以及至少一个第二延迟器第二检测部分具有旨在基本上垂直于第二光轴并横向于至少一个第一延迟器的第一光轴布置的光轴。基本上只有与第一图像分量相关的光被第一检测部分发送，并且基本上只有与第二图像分量有关的光被第二检测部分发送。

10. 发明授权

US06765640B1 Reflective liquid crystal devices 失效
标题翻译：反光液晶装置
公开(公告)号：US06765640B1
公开(公告)日：2004-07-20
申请号：US10031654
申请日：2001-11-13
申请人： Elizabeth Jane Acosta , Martin David Tillin , Michael John Towler
发明人： Elizabeth Jane Acosta , Martin David Tillin , Michael John Towler
IPC分类号： G02F11335
CPC分类号： G02F1/1391 , G02F1/13363 , G02F2001/133638 , G02F2203/02 , G02F2413/02 , G02F2413/08
摘要： A reflective liquid crystal device comprises in sequence a linear polarizer, a retarder arrangement comprising two retarders, and a reflector. A first of the retarders provides a retardation of m&lgr;/2 and a second of the retarders provides a retardation of n&lgr;/4, where m is an integer and n is an odd integer, and wherein at least one of the first and second retarders comprises a Bistable Twisted Nematic (BTN) liquid crystal. This BTN retarder is switchable between a first state in which the retarder provides a retardation of m&lgr;/2 or n&lgr;/4 and a second state in which the retardation is zero.
摘要翻译：反射型液晶装置依次包括线性偏振器，包括两个延迟器的延迟器装置和反射器。延迟器中的第一个提供了λ/ 2的延迟，并且第二个延迟器提供了nλ/ 4的延迟，其中m是整数，n是奇数整数，并且其中第一和第二延迟器中的至少一个包括双稳态扭曲向列（BTN）液晶。该BTN延迟器可在其中延迟器提供λ/ 2或λ/ 4的延迟的第一状态与延迟为零的第二状态之间切换。

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