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1.发明授权Tilted C-plate retarder compensator and display systems incorporating the same 有权倾斜的C型板延迟器补偿器和包括其的显示系统公开(公告)号：US08237876B2
公开(公告)日：2012-08-07
申请号：US11419872
申请日：2006-05-23
IPC分类号： G02F1/1335
CPC分类号： H04N9/3167 , G02B5/3083 , G02F1/133632 , G02F1/133634 , G02F1/136277 , G02F1/1393 , G02F2203/02 , H04N9/3105
摘要： A C-plate compensator is disclosed for compensating the residual A-plate and C-plate retardance of a reflective liquid crystal on silicon (LCoS) display or a transmissive liquid crystal (LC) display in a projection display system. The C-plate incorporates a form-birefringent coating, whose retardance magnitude can be adjusted by tilting with respect to the display panel (X-Y) plane. The tilted plate is rotated about the Z-axis by a prescribed amount from the slow axis of the display panel. Criteria are described for choosing the tilt and rotation angles such that the contrast of the display system produced by the compensated panel is optimized.
摘要翻译： 公开了用于补偿投影显示系统中的硅（LCoS）显示器或透射型液晶（LC）显示器上的反射液晶的残留A板和C板延迟的C板补偿器。 C板包含双折射形式的涂层，其延迟大小可以通过相对于显示面板（X-Y）平面倾斜来调节。 倾斜板从显示面板的慢轴绕Z轴旋转规定量。 描述了用于选择倾斜和旋转角度的标准，使得由补偿面板产生的显示系统的对比度被优化。
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公开(公告)号：US08049824B2
公开(公告)日：2011-11-01
申请号：US12028390
申请日：2008-02-08
IPC分类号： G02F1/13363 , G02B5/30
CPC分类号： G02F1/133632 , G02F1/136277 , H04N9/3167
摘要： A single-layer birefringent crystal trim retarder includes a birefringent crystal cut such that its optic axis is at a high oblique angle and such that it provides low in-plane retardance values even when the birefringent crystal is relatively thick. To compensate for the inherent high +C-plate retardance of this high-tilt O-plate, the single-layer birefringent crystal is coupled with a −C-plate thin-film retarder to provide a trim retarder having an overall A/−C-plate retarder functionality. This full-function trim retarder is practical to fabricate, is thickness and azimuthal angle tolerant, and is suitable for low sensitivity angular clocking requirements of LCoS panel compensation.
摘要翻译： 单层双折射晶体微调延迟器包括双折射晶体切割，使得其光轴处于高倾斜角度，并且即使当双折射晶体相对较厚时也提供低的面内延迟值。 为了补偿该高倾斜O板的固有的高+ C板延迟，单层双折射晶体与-C板薄膜延迟器耦合以提供具有整体A / C 板式延迟器功能。 该全功能微调缓速器可实现制造，厚度和方位角的宽容度，适用于LCoS面板补偿的低灵敏度角时钟要求。
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公开(公告)号：US07859977B2
公开(公告)日：2010-12-28
申请号：US11843082
申请日：2007-08-22
IPC分类号： G11B7/00
CPC分类号： G02B27/283 , G02B5/305 , G11B7/1395
摘要： An optical pick-up including a fold mirror having an achromatic quarter-wave plate coating is provided. To allow the thin film coating to efficiently provide the quarter-wave retardation, the optical pick-up is configured such that the polarization of light incident on the fold mirror is at a predetermined angle. According to one embodiment, the predetermined angle is provided by rotating the light sources. According to another embodiment, the predetermined angle is provided by rotating a plane containing the light sources and the beam combiners. In each embodiment, the beam combiners and the fold mirror are arranged along the same axis to further improve efficiency.
摘要翻译： 提供了包括具有无色四分之一波片板涂层的折叠镜的光学拾取器。 为了使薄膜涂层有效地提供四分之一波长的延迟，光学拾取器被配置为使得入射在折叠反射镜上的光的偏振处于预定角度。 根据一个实施例，通过旋转光源来提供预定角度。 根据另一实施例，通过旋转包含光源和光束组合器的平面来提供预定角度。 在每个实施例中，波束组合器和折叠反射镜沿着相同的轴线布置以进一步提高效率。
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公开(公告)号：US07626661B2
公开(公告)日：2009-12-01
申请号：US11006379
申请日：2004-12-07
申请人： Jerry Zieba , Thomas Mayer , David M. Shemo , Markus Duelli , Kim Leong Tan , Karen Denise Hendrix , Klaus Schmitt
发明人： Jerry Zieba , Thomas Mayer , David M. Shemo , Markus Duelli , Kim Leong Tan , Karen Denise Hendrix , Klaus Schmitt
IPC分类号： G02F1/1335
CPC分类号： G02B5/3083 , G02B5/3016 , G02F1/133634 , G02F2201/38
摘要： The invention relates to a polarization compensating element (PCE) for a liquid crystal, e.g. liquid crystal on silicon (LCoS), display system manufactured using a linearly photo-polymerizable polymer (LPP) for orienting a photo-polymerizable liquid crystal polymer (LCP) film. To decrease the reflection, polarization conversion, and interference events in an LPP/LCP assembly the ΔN birefringence value of the LCP material is minimized. Dielectric coatings are added at various locations throughout the assembly for minimizing the amount of reflection, polarization conversion, and interference effects and for suppressing spatial retardance ripples.
摘要翻译： 本发明涉及一种用于液晶的偏振补偿元件（PCE），例如， 硅液晶（LCoS），使用用于取向光聚合性液晶聚合物（LCP）膜的线性光聚合性聚合物（LPP）制造的显示系统。 为了减少LPP / LCP组件中的反射，偏振转换和干涉事件，LCP材料的DeltaN双折射值被最小化。 在整个组件中的各个位置添加介电涂层，以最小化反射量，极化转换和干涉效应以及抑制空间延迟波纹。
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公开(公告)号：US08072683B2
公开(公告)日：2011-12-06
申请号：US11843135
申请日：2007-08-22
IPC分类号： G02B5/30
CPC分类号： G02B27/283 , G02B5/305 , G11B7/1395
摘要： Cartesian polarizers utilizing liquid crystal polymers (LCPs) are provided for use as laser protection filters in optical pick-up units. The LCPs are photo-aligned and cross-linked into a polymer host to provide a durable filter. According to one embodiment, the LCP molecules exhibit a cholesteric phase and are coupled to one or more quarter-wave retarders. According to another embodiment, the LCP molecules are used to form a multi-layer stack using the giant-birefringence optics effect.
摘要翻译： 使用液晶聚合物（LCP）的笛卡尔偏振器被提供用作光学拾取单元中的激光保护滤光器。 LCP是光对准的并且交联到聚合物主体中以提供耐用的过滤器。 根据一个实施方案，LCP分子表现出胆甾相，并且耦合到一个或多个四分之一波长延迟器。 根据另一个实施方案，LCP分子用于使用巨型双折射光学效应形成多层叠层。
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6.发明申请公开(公告)号：US20080252800A1
公开(公告)日：2008-10-16
申请号：US12100024
申请日：2008-04-09
IPC分类号： G02F1/13363
CPC分类号： G02F1/133634 , G02F1/136277 , G02F2413/10 , H04N9/3105
摘要： Contrast compensation for a liquid crystal display projection system including a light source, a first polarizer, a liquid crystal display panel, and a second polarizer is provided using a tilted compensating plate. The compensating plate includes a first birefringent element having an optic axis oriented at a first angle to the plate normal, where the first angle is greater than zero degrees (e.g., an A-plate or O-plate), and a second birefringent element having an optic axis oriented at a second angle to the plate normal, where the second angle is substantially equal to zero degrees (e.g., a C-plate). The compensating plate is tilted relative to a plane of the liquid crystal display panel. The tilted compensating plate has been shown to provide improved contrast compensation for twisted nematic liquid crystal displays.
摘要翻译： 使用倾斜补偿板提供包括光源，第一偏振器，液晶显示面板和第二偏振器的液晶显示投影系统的对比度补偿。 所述补偿板包括第一双折射元件，所述第一双折射元件具有以与板法线成第一角度定向的光轴，其中所述第一角度大于零度（例如，A板或O板），以及第二双折射元件，其具有 光轴以与板法线成第二角度定向，其中第二角度基本上等于零度（例如，C板）。 补偿板相对于液晶显示面板的平面倾斜。 倾斜补偿板已经显示出对扭转向列液晶显示器提供改进的对比度补偿。
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7.发明授权公开(公告)号：US08072561B2
公开(公告)日：2011-12-06
申请号：US12100024
申请日：2008-04-09
IPC分类号： G02F1/1335
CPC分类号： G02F1/133634 , G02F1/136277 , G02F2413/10 , H04N9/3105
摘要： Contrast compensation for a liquid crystal display projection system including a light source, a first polarizer, a liquid crystal display panel, and a second polarizer is provided using a tilted compensating plate. The compensating plate includes a first birefringent element having an optic axis oriented at a first angle to the plate normal, where the first angle is greater than zero degrees (e.g., an A-plate or O-plate), and a second birefringent element having an optic axis oriented at a second angle to the plate normal, where the second angle is substantially equal to zero degrees (e.g., a C-plate). The compensating plate is tilted relative to a plane of the liquid crystal display panel. The tilted compensating plate has been shown to provide improved contrast compensation for twisted nematic liquid crystal displays.
摘要翻译： 使用倾斜补偿板提供包括光源，第一偏振器，液晶显示面板和第二偏振器的液晶显示投影系统的对比度补偿。 所述补偿板包括第一双折射元件，所述第一双折射元件具有以与板法线成第一角度定向的光轴，其中所述第一角度大于零度（例如，A板或O板），以及第二双折射元件，其具有 光轴以与板法线成第二角度定向，其中第二角度基本上等于零度（例如，C板）。 补偿板相对于液晶显示面板的平面倾斜。 倾斜补偿板已经显示出对扭转向列液晶显示器提供改进的对比度补偿。
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公开(公告)号：US20080192184A1
公开(公告)日：2008-08-14
申请号：US12028390
申请日：2008-02-08
IPC分类号： G02F1/1335 , G02B5/30
CPC分类号： G02F1/133632 , G02F1/136277 , H04N9/3167
摘要： A single-layer birefringent crystal trim retarder includes a birefringent crystal cut such that its optic axis is at a high oblique angle and such that it provides low in-plane retardance values even when the birefringent crystal is relatively thick. To compensate for the inherent high +C-plate retardance of this high-tilt O-plate, the single-layer birefringent crystal is coupled with a −C-plate thin-film retarder to provide a trim retarder having an overall A/−C-plate retarder functionality. This full-function trim retarder is practical to fabricate, is thickness and azimuthal angle tolerant, and is suitable for low sensitivity angular clocking requirements of LCoS panel compensation.
摘要翻译： 单层双折射晶体微调延迟器包括双折射晶体切割，使得其光轴处于高倾斜角度，并且即使当双折射晶体相对较厚时也提供低的面内延迟值。 为了补偿该高倾斜O板的固有的高+ C板延迟，单层双折射晶体与-C板薄膜延迟器耦合以提供具有整体A / C 板式延迟器功能。 该全功能微调缓速器可实现制造，厚度和方位角的宽容度，适用于LCoS面板补偿的低灵敏度角时钟要求。
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公开(公告)号：US20090190463A1
公开(公告)日：2009-07-30
申请号：US12362219
申请日：2009-01-29
IPC分类号： G11B7/00
CPC分类号： G11B7/1362 , G11B7/1275 , G11B7/1356 , G11B7/1365 , G11B2007/0006
摘要： Optical pick-up units (OPU), which require several light sources for reading newer formats, such as Blu-Ray, and legacy formats, such as DVD and CD, require a series of beam splitters/combiners for directing the various source light beams from the light sources along a common path. A two-mirror reflector sub-unit, in which at least one mirror includes a thin film dielectric retarder element, is used to redirect the beams traveling along the common path onto the disc-media, while imposing a 90° retardation onto the polarized light incidence, whereby light returning from the disc-media undergoes a 90° orientation change in the state of polarization from one linear polarization to the other orthogonal linear polarization.
摘要翻译： 需要用于读取较新格式（例如蓝光）和诸如DVD和CD的传统格式的多个光源的光学拾取单元（OPU）需要一系列分束器/组合器来引导各种源光束 从光源沿着共同的路径。 使用两镜反射器子单元，其中至少一个反射镜包括薄膜介质延迟元件，用于将沿着公共路径行进的光束重定向到盘介质上，同时在偏振光上施加90°延迟 入射，由此从光盘介质返回的光在偏振状态从一个线性偏振到另一个正交线性偏振的90°取向变化。
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公开(公告)号：US20080049184A1
公开(公告)日：2008-02-28
申请号：US11843135
申请日：2007-08-22
IPC分类号： G02F1/1337 , G02F1/13
CPC分类号： G02B27/283 , G02B5/305 , G11B7/1395
摘要： Cartesian polarizers utilizing liquid crystal polymers (LCPs) are provided for use as laser protection filters in optical pick-up units. The LCPs are photo-aligned and cross-linked into a polymer host to provide a durable filter. According to one embodiment, the LCP molecules exhibit a cholesteric phase and are coupled to one or more quarter-wave retarders. According to another embodiment, the LCP molecules are used to form a multi-layer stack using the GBO effect.
摘要翻译： 使用液晶聚合物（LCP）的笛卡尔偏振器被提供用作光学拾取单元中的激光保护滤光器。 LCP是光对准的并且交联到聚合物主体中以提供耐用的过滤器。 根据一个实施方案，LCP分子表现出胆甾相，并且耦合到一个或多个四分之一波长延迟器。 根据另一个实施方案，LCP分子用于使用GBO效应形成多层堆叠。
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