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1.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：US20110032483A1
公开(公告)日：2011-02-10
申请号：US12851969
申请日：2010-08-06
申请人： Curtis R. HRUSKA , David M. SHEMO , Kim Leong TAN
发明人： Curtis R. HRUSKA , David M. SHEMO , Kim Leong TAN
CPC分类号： G02B27/26 , G02B26/008 , G02B27/286
摘要： A multi-segment optical retarder that can be used with or within a single projector for creating 3D images. The multi-segment optical retarder is coupled to an actuator used to effect some predetermined linear, rotary, or oscillating movement of the multi-segment optical retarder such that a fast axis orientation of each segment is substantially constant relative to itself over time and for a given area of incidence.
摘要翻译： 可以与单个投影机一起使用或用于创建3D图像的多段光学延迟器。 多段光学延迟器耦合到用于实现多段光学延迟器的某些预定的线性，旋转或振荡运动的致动器，使得每个段的快速轴取向在时间上相对于其自身基本恒定，并且对于 给定发病面积。
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公开(公告)号：US20090002579A1
公开(公告)日：2009-01-01
申请号：US12141861
申请日：2008-06-18
申请人： Kim Leong Tan
发明人： Kim Leong Tan
IPC分类号： G02F1/1335
CPC分类号： G02F1/13363 , G02F1/136277 , G02F2202/40 , G02F2203/02 , G02F2413/03 , G02F2413/07
摘要： Contrast compensation for a liquid crystal display projection system is provided with a trim retarder that includes a single-layer retarder element that has an in-plane retardance that is shifted from a zero-order half-wave at a predetermined wavelength by a predetermined amount. This near half-wave plate provides similar contrast compensation and azimuthal angle sensitivity to conventional relatively low-magnitude trim retarders, yet is readily fabricated with inorganic birefringent crystals with a manageable thickness tolerance.
摘要翻译： 对于液晶显示投影系统的对比度补偿设置有包括单层延迟元件的修整延迟器，该单层延迟元件具有从预定量的预定波长的零级半波偏移预定量的面内延迟。 该近半波片对常规的相对较低幅度的减速器提供了类似的对比度补偿和方位角灵敏度，但是容易地用可控制的厚度公差的无机双折射晶体制造。
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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：US08425042B2
公开(公告)日：2013-04-23
申请号：US12851969
申请日：2010-08-06
申请人： Curtis R. Hruska , David M. Shemo , Kim Leong Tan
发明人： Curtis R. Hruska , David M. Shemo , Kim Leong Tan
IPC分类号： G03B21/00
CPC分类号： G02B27/26 , G02B26/008 , G02B27/286
摘要： A multi-segment optical retarder that can be used with or within a single projector for creating 3D images. The multi-segment optical retarder is coupled to an actuator used to effect some predetermined linear, rotary, or oscillating movement of the multi-segment optical retarder such that a fast axis orientation of each segment is substantially constant relative to itself over time and for a given area of incidence.
摘要翻译： 可以与单个投影机一起使用或用于创建3D图像的多段光学延迟器。 多段光学延迟器耦合到用于实现多段光学延迟器的某些预定的线性，旋转或振荡运动的致动器，使得每个段的快速轴取向在时间上相对于其自身基本恒定，并且对于 给定发病面积。
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6.发明授权Contrast compensation of microdisplay panels including a high order waveplate 有权微型显示面板的对比度补偿，包括高阶波片公开(公告)号：US07999895B2
公开(公告)日：2011-08-16
申请号：US12497246
申请日：2009-07-02
申请人： Kim Leong Tan , Nada A. O'Brien
发明人： Kim Leong Tan , Nada A. O'Brien
IPC分类号： G02F1/13363
CPC分类号： G02F1/133632 , G02F1/136277 , G02F2001/133638
摘要： A contrast compensator for improving the panel contrast of liquid crystal (LC) microdisplays having a high-order waveplate configured as an O-plate and supporting a thin film transistor layer is provided. The contrast compensator includes a counter high-order waveplate configured as an O-plate, which has a birefringence opposite in sign to a birefringence of the thin film transistor substrate.
摘要翻译： 提供了一种用于改善具有配置为O板的高阶波片并支撑薄膜晶体管层的液晶（LC）微显示器的面板对比度的对比度补偿器。 对比度补偿器包括配置为O板的计数器高阶波片，其具有与薄膜晶体管基板的双折射相符的双折射。
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公开(公告)号：US07714945B2
公开(公告)日：2010-05-11
申请号：US11468860
申请日：2006-08-31
IPC分类号： G02F1/13363 , G02F1/139 , H04N9/31
CPC分类号： H04N9/3167 , G02B5/3058 , G02B5/3083 , G02F1/133632 , G02F1/133634 , G02F1/136277 , G02F1/1393 , G02F2203/02 , G02F2413/10 , H04N9/3105
摘要： A trim retarder for a liquid crystal display based projection system including a light source, a polarizer/analyzer, a liquid crystal display panel, and a projection lens, is clocked to an optimal azimuthal angle that provides a system contrast level substantially unaffected by the orientation of the slow axis of the liquid crystal display panel.
摘要翻译： 用于基于液晶显示器的投影系统的包括光源，偏振器/分析器，液晶显示面板和投影透镜的修整延迟器被计时到最佳的方位角，该方位角提供了基本上不受方位影响的系统对比度 的液晶显示面板的慢轴。
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公开(公告)号：US07671946B2
公开(公告)日：2010-03-02
申请号：US11550041
申请日：2006-10-17
IPC分类号： G02F1/1335 , G03B21/14
CPC分类号： G02F1/1309 , G02F1/133382 , G02F1/13363 , G02F1/136277 , G02F2413/01 , G03B21/2073 , H04N9/3105 , H04N9/3152 , H04N9/3155 , H04N9/3167 , H04N9/3182
摘要： The invention relates to a method of electronic contrast enhancement for an LCD panel for use in an imaging device. The method comprises the step of coupling the LCD panel with a trim retarder in a pre-determined azimuthal orientation for at least partially compensating the residual in-plane retardance, followed by the step of non-mechanical fine-tuning of a dark state of the LCD panel. In the preferred embodiment, the fine-tuning of the dark state of the LCD panel is realized by adjusting the dark-state magnitude of the LC voltage. The method can be used in batch, e.g. wafer-level manufacturing of integrated trim retarder/LCD panels assemblies that can be electronically tuned to provide high on/off contrast.
摘要翻译： 本发明涉及用于成像装置的LCD面板的电子对比度增强方法。 该方法包括以下步骤：将LCD面板与预定方位角取向中的修整延迟器耦合，以至少部分地补偿残余的面内延迟，然后是非机械微调黑色状态的步骤 液晶面板 在优选实施例中，通过调节LC电压的暗态幅值来实现LCD面板的暗态微调。 该方法可以批量使用。 可以电子调谐以提供高开/关对比度的集成微型缓冲器/ LCD面板组件的晶圆级制造。
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公开(公告)号：US20080290179A1
公开(公告)日：2008-11-27
申请号：US12107152
申请日：2008-04-22
CPC分类号： B41M3/148 , B82Y30/00 , C01P2006/42 , C09C1/0015 , C09C1/0018 , C09C2200/301 , C09C2210/30 , G07D7/0032 , G07D7/06
摘要： The invention relates to a method of recording machine-readable information on an article, including the steps of: providing a carrier having flakes dispersed therein onto the surface of the article, wherein all of the flakes have a beam-splitting grating pattern encoding the information thereon; aligning the flakes parallel to a sloped plane forming a slope angle with the surface of the article; and, solidifying the carrier. When the article is irradiated with an EM beam, a first portion of the EM beam is reflected from the surface of the article, forming a surface reflection, a second portion of the beam is reflected from the beam-splitting grating pattern, forming an arrangement of sub-beams, and the slope angle provides a spatial separation between the arrangement of sub-beams and the surface reflection, enabling machine-reading.
摘要翻译： 本发明涉及一种在物品上记录机器可读信息的方法，包括以下步骤：提供其中分散在其中的薄片上的载体，其中所有薄片具有编码信息的分束光栅图案 上; 将薄片平行于与制品表面形成倾斜角的倾斜平面对准; 并固化载体。 当用EM束照射物品时，EM光束的第一部分从制品的表面反射，形成表面反射，光束的第二部分从光束分离光栅图案反射，形成布置 的子光束，并且斜角提供子光束的布置和表面反射之间的空间间隔，使得机器读取。
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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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