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    High contrast front projection screen
    1.
    发明申请
    High contrast front projection screen 审中-公开
    高对比度前投影屏

    公开(公告)号：US20070139766A1

    公开(公告)日：2007-06-21

    申请号：US11312939

    申请日：2005-12-20

    Applicant: Marc Radcliffe ,  Nirmal Manoj

    Inventor： Marc Radcliffe ,  Nirmal Manoj

    IPC: G03B21/60

    CPC classification number: G03B21/604 ,  G02F1/13471 ,  G02F1/13718 ,  G02F2001/13478

    Abstract: A front projection screen and a projection system incorporating same are disclosed. The front projection screen includes a plurality of cholesteric liquid crystal layers and one or more retarder layers. Each cholesteric liquid crystal layer has a reflectance curve characterized by a reflectance peak and a reflectance full width at half maximum. The reflectance peaks of at least two cholesteric liquid crystal layers in the plurality of cholesteric liquid crystal layers are located at different wavelengths. A retardance full width at half maximum of a first retarder layer in the one or more retarder layers encloses the reflectance full width at half maxima of two or more cholesteric liquid crystal layers in the plurality of cholesteric liquid crystal layers.

    Abstract translation: 公开了一种前投影屏幕和包括其的投影系统。 前投影屏幕包括多个胆甾型液晶层和一个或多个延迟器层。 每个胆甾型液晶层具有由反射峰和半高反射率全宽表征的反射曲线。 多个胆甾型液晶层中的至少两个胆甾型液晶层的反射率峰位于不同的波长。 一个或多个缓凝剂层中的第一延迟层的半值延迟全宽包围多个胆甾型液晶层中的两个或更多个胆甾醇型液晶层的半值最大值处的反射率全宽度。

    Multilayer cholesteric liquid crystal optical bodies and methods of manufacture and use
    2.
    发明申请
    Multilayer cholesteric liquid crystal optical bodies and methods of manufacture and use 有权
    多层胆甾型液晶光学体及其制造和使用方法

    公开(公告)号：US20050266158A1

    公开(公告)日：2005-12-01

    申请号：US10858238

    申请日：2004-06-01

    Applicant: Richard Pokorny ,  Marc Radcliffe ,  Steven Solomonson ,  Terence Spawn

    Inventor： Richard Pokorny ,  Marc Radcliffe ,  Steven Solomonson ,  Terence Spawn

    IPC: B05D5/06 ,  G02B5/30 ,  G02F1/1335

    CPC classification number: G02B5/3016 ,  G02F1/133536 ,  G02F2201/343

    Abstract: Methods of making an optical body are disclosed. A method includes the steps of coating a mixture including a first cholesteric liquid crystal polymer, a second cholesteric liquid crystal monomer, a second cholesteric liquid crystal polymer formed from a portion of the second cholesteric liquid crystal monomer, and a solvent on a substrate. The first cholesteric liquid crystal polymer is different than the second cholesteric liquid crystal polymer. Then, forming from the mixture an optical body including a first layer, a second layer, and a third layer disposed between the first and second layer. The first layer includes a majority of the first cholesteric liquid crystal polymer. The second layer includes a majority of a second cholesteric liquid crystal monomer. The third layer includes the second cholesteric liquid crystal polymer.

    Abstract translation: 公开了制造光学体的方法。 一种方法包括以下步骤：将包含第一胆甾型液晶聚合物，第二胆甾醇型液晶单体，由第二胆甾型液晶单体的一部分形成的第二胆甾醇型液晶聚合物和溶剂涂布在基材上的混合物。 第一胆甾型液晶聚合物与第二胆甾型液晶聚合物不同。 然后，从混合物形成包括设置在第一层和第二层之间的第一层，第二层和第三层的光学体。 第一层包括第一胆甾型液晶聚合物的大部分。 第二层包括大部分第二胆甾型液晶单体。 第三层包括第二胆甾型液晶聚合物。

    Alignment of liquid crystals
    4.
    发明申请
    Alignment of liquid crystals 有权
    液晶对准

    公开(公告)号：US20050140837A1

    公开(公告)日：2005-06-30

    申请号：US10748562

    申请日：2003-12-30

    Applicant: Gregory Crawford ,  James Eakin ,  Marc Radcliffe

    Inventor： Gregory Crawford ,  James Eakin ,  Marc Radcliffe

    IPC: G02F1/1337 ,  G02F1/136

    CPC classification number: G02F1/133788

    Abstract: A method includes exposing an alignment material to an interference pattern to cause a chemical reaction in the alignment material and exposing the alignment material to a liquid crystal, where the liquid crystal aligns relative to the alignment material based on the interference pattern.

    Abstract translation: 一种方法包括将对准材料暴露于干涉图案以引起对准材料中的化学反应并将对准材料暴露于液晶，其中液晶基于干涉图案相对于取向材料取向。

    Cholesteric liquid crystal copolymers and additives
    6.
    发明申请
    Cholesteric liquid crystal copolymers and additives 有权
    胆固醇液晶共聚物和添加剂

    公开(公告)号：US20050045854A1

    公开(公告)日：2005-03-03

    申请号：US10652700

    申请日：2003-08-29

    Applicant: Marc Radcliffe ,  Richard Pokorny ,  Terence Spawn ,  Steven Solomonson

    Inventor： Marc Radcliffe ,  Richard Pokorny ,  Terence Spawn ,  Steven Solomonson

    IPC: C09K19/20 ,  C09K19/38 ,  C09K19/36 ,  C09K19/12

    CPC classification number: C09K19/3852 ,  C09K19/2007 ,  C09K2019/0448 ,  C09K2019/2035 ,  C09K2019/2078 ,  C09K2019/3095 ,  C09K2219/03 ,  Y10T428/10 ,  Y10T428/1036 ,  Y10T428/1041 ,  Y10T428/105

    Abstract: A cholesteric liquid crystal composition includes a) a cholesteric liquid crystal compound or a cholesteric liquid crystal precursor; and b) a compound of formula (I), formula (II) or formula (III): R—R1—R2R3R4nR5—R6  (I) R—R7—R2R3R4nR5—R8  (II) R9R4R3mR2—R10—R)2  (III) where, n is 1, 2, 3, or 4; m is 1, 2, or 3; R is an acrylate, methacrylate, acrylamide, isocyanate, epoxy, or silane; R1 is a (C3-C8) alkylene, (C3-C8) alkenylene, or (C3-C8) alkylyne; R2 is a bond, —O—, —C(O)O—, —O(O)C—, —OC(O)O—, —C(O)N—, —CH═N—, —N═CH—, or —NC(O)—; R3 is a cycloalkylene, cycloalkenylene, heterocyclylene, arylene, or hetroarylene; R4 is a bond, (C1-C8) alkylene, (C2-C8) alkenylene, (C2-C8) alkylyne, carbonyl, —O—, —C(O)O—, —O(O)C—, —OC(O)O—, —C(O)N—, —CH═N—, —N═CH—, or —NC(O)—; R5 is a bond, cycloalkylene, cycloalkenylene, hetrocyclylene, arylene, or hetroarylene; R6 is hydrogen, cyano, halo, (C1-C8) alkoxy, (C1-C8) alkyl, nitro, amino, carboxy, mercapto, (C1-C4)thioalkyl, COCH3, CF3, OCF3, or SCF3; R7 is a (C1-C2) alkylene, (C2) alkenylene, or (C2) alkylyne; R8 is is hydrogen, halo, (C1-C8) alkoxy, (C1-C8) alkyl, nitro, amino, carboxy, mercapto, (C1-C4)thioalkyl, COCH3, CF3, OCF3, or SCF3; R9 is a cycloalkylene, cycloalkenylene, heterocyclylene, arylene, or hetroarylene; and R10 is a (C1-C8) alkylene, (C2-C8) alkenylene, or (C2-C8) alkylyne.

    Abstract translation: 胆甾型液晶组合物包括：a）胆甾型液晶化合物或胆甾型液晶前体; （I）R-R 1 -R 2和Parenoplosst; R 3 -R 4和Parenclosest; n R 5 -R 6（I）R-R 7 -R 2和Parenopenst; R 3 R 4和Parenclosest; nR 5 -R 8（II）R 9和Parenopenst ;＆Parenopenst; R4R3和Parenclosest; mR2-R10-R）2（III）其中n为1,2,3或4; m为1,2或3; R是丙烯酸酯，甲基丙烯酸酯，丙烯酰胺，异氰酸酯，环氧树脂或硅烷; R1是（C3-C8）亚烷基，（C3-C8）亚烯基或（C3-C8）烷基; R 2是键，-O - ， - C（O）O-，-O（O）C - ， - O（O）O-，-C（O） CH-或-NC（O） - ; R 3是亚环烷基，亚环烯基，亚杂环基，亚芳基或杂芳基; R4是一个键，（C1-C8）亚烷基，（C2-C8）亚烯基，（C2-C8）烷基烯，羰基，-O - ， - C（O）O-，-O（O） （O）O-，-C（O）N - ， - CH = N - ， - N = CH-或-NC（O） - ; R5是键，亚环烷基，亚环烯基，杂环亚烷基，亚芳基或杂环亚芳基; R6是氢，氰基，卤素，（C1-C8）烷氧基，（C1-C8）烷基，硝基，氨基，羧基，巯基，（C1-C4）硫代烷基，COCH3，CF3，OCF3或SCF3; R7是（C1-C2）亚烷基，（C2）亚烯基或（C2）烷基; R8是氢，卤素，（C1-C8

    Cholesteric liquid crystal optical bodies and methods of manufacture and use
    8.
    发明申请
    Cholesteric liquid crystal optical bodies and methods of manufacture and use 失效
    胆固醇液晶光学体及其制造和使用方法

    公开(公告)号：US20050140918A1

    公开(公告)日：2005-06-30

    申请号：US11066340

    申请日：2005-02-24

    Applicant: Christopher Bowley ,  Ikuko Ebihara ,  Gregory Gilligan ,  Richard Pokorny ,  Marc Radcliffe ,  Prabhakara Rao ,  Philip Watson

    Inventor： Christopher Bowley ,  Ikuko Ebihara ,  Gregory Gilligan ,  Richard Pokorny ,  Marc Radcliffe ,  Prabhakara Rao ,  Philip Watson

    IPC: G02B5/30 ,  C09K19/02 ,  C09K19/42 ,  C09K19/58 ,  G02F1/1335

    CPC classification number: G02F1/133536 ,  C09K19/02 ,  C09K19/42 ,  C09K19/586 ,  G02B5/3016 ,  G02F2001/133543

    Abstract: An optical body includes a) first particles comprising a first cholesteric liquid crystal material and b) a second cholesteric liquid crystal material. The first particles and the second cholesteric liquid crystal material form a structure where the first cholesteric liquid crystal material has a pitch that is different than the second cholesteric liquid crystal material. In one example, the second cholesteric liquid crystal material is in the form of second particles. In another example, the first particles are dispersed in a matrix of the second cholesteric liquid crystal material. In other examples, the optical body has more than one layer. In addition, one or more additional cholesteric liquid crystal materials can be used in the optical body. These optical bodies can be used as a reflective polarizer and can be used in a display.

    Abstract translation: 光学体包括：a）包含第一胆甾型液晶材料的第一颗粒和b）第二胆甾型液晶材料。 第一粒子和第二胆甾型液晶材料形成第一胆甾型液晶材料具有与第二胆甾型液晶材料不同的间距的结构。 在一个实例中，第二胆甾型液晶材料为第二颗粒的​​形式。 在另一个实例中，第一颗粒分散在第二胆甾型液晶材料的基质中。 在其他示例中，光学体具有不止一层。 此外，可以在光学体中使用一种或多种其它胆甾醇型液晶材料。 这些光学体可以用作反射型偏振片，可用于显示器。

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