公开(公告)号：US06665108B2

公开(公告)日：2003-12-16

申请号：US10190594

申请日：2002-07-09

申请人： Carl V Brown ,  Maurice Stanley

发明人： Carl V Brown ,  Maurice Stanley

IPC分类号： G02F101

CPC分类号： H04N5/74 ,  G02B5/32 ,  G03H1/02 ,  G03H1/2249 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2001/221 ,  G03H2001/2292 ,  G03H2001/2297 ,  G03H2001/262 ,  G03H2001/2655 ,  G03H2210/30 ,  G03H2222/22 ,  G03H2223/19 ,  G03H2225/22 ,  G03H2225/25 ,  G03H2225/55 ,  G03H2225/60 ,  H04N5/7441

摘要： A system for the production of a dynamic image for use in display applications includes a light source (16) which travels via a liquid crystal modulator (18) placed in the path of the light source (16). The output of the LC modulator (18) passes modulated light a lens ray (22) which itself guides light to an optically addressed spatial light modulator (24). The resulting real image from the optically addressed spatial light modulator (24) may be used in two dimensional and three dimensional displays. The addressing frame-rate of the liquid crystal modulator (18) is substantially greater than the frame-rate of the optically addressed spatial light modulator (24).

公开(公告)号：US06437919B1

公开(公告)日：2002-08-20

申请号：US09529550

申请日：2000-06-13

申请人： Carl V Brown ,  Maurice Stanley

发明人： Carl V Brown ,  Maurice Stanley

IPC分类号： G02B2710

CPC分类号： H04N5/74 ,  G02B5/32 ,  G03H1/02 ,  G03H1/2249 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2001/221 ,  G03H2001/2292 ,  G03H2001/2297 ,  G03H2001/262 ,  G03H2001/2655 ,  G03H2210/30 ,  G03H2222/22 ,  G03H2223/19 ,  G03H2225/22 ,  G03H2225/25 ,  G03H2225/55 ,  G03H2225/60 ,  H04N5/7441

摘要： A system for the production of a dynamic image for use in holography includes a light source (16) which travels via a liquid crystal modulator (18) placed in the path of the light source (16). The output of the LC modulator (18) passes modulated light through a lens array (22) which itself guides light to an optically addressed spatial light modulator (24). The resulting real image from the optically addressed spatial light modulator (24) may be used in holography. The addressing frame-rate of the liquid crystal modulator (18) is substantially greater than the frame-rate of the optically addressed spatial light modulator (24).

摘要翻译： 用于生产用于全息术的动态图像的系统包括经由位于光源（16）的路径中的液晶调制器（18）行进的光源（16）。 LC调制器（18）的输出使调制的光通过透镜阵列（22），该透镜阵列本身将光导向光学寻址的空间光调制器（24）。 来自光学寻址的空间光调制器（24）的所得真实图像可以用于全息术。 液晶调制器（18）的寻址帧速率基本上大于光学寻址的空间光调制器（24）的帧速率。

公开(公告)号：US07053975B2

公开(公告)日：2006-05-30

申请号：US10333472

申请日：2001-07-18

申请人： Emma L Wood ,  Guy P Bryan-Brown ,  Victor C Hui ,  John C Jones ,  Carl V Brown

发明人： Emma L Wood ,  Guy P Bryan-Brown ,  Victor C Hui ,  John C Jones ,  Carl V Brown

IPC分类号： G02F1/13 ,  G02F1/1337

CPC分类号： G02F1/1391 ,  G02F1/1337 ,  G02F2001/133761 ,  G02F2001/133776 ,  G02F2201/30 ,  Y10T428/10 ,  Y10T428/1005

摘要： Liquid crystal devices are described that exhibit bistable, tri-stable or other multistable operation. The stable liquid crystal configurations are attained using a surface alignment grating (144) on the internal surface of at least one cell wall (142). The surface profile of the surface alignment grating comprises three or more defect sites per grating period and permit the liquid crystal molecules to adopt any one of two or more stable pretilt angles in the same azimuthal plane. Application of a suitable voltage causes the liquid crystal material to switch between the stable configurations.

摘要翻译： 描述了显示双稳态，三稳态或其他多态操作的液晶器件。 使用在至少一个细胞壁（142）的内表面上的表面对准光栅（144）来获得稳定的液晶结构。 表面对准光栅的表面轮廓在每个光栅周期包括三个或更多个缺陷部位，并允许液晶分子在相同的方位平面内采用两个或更多个稳定的预倾斜角中的任何一个。 施加合适的电压使得液晶材料在稳定构型之间切换。

公开(公告)号：US06549256B1

公开(公告)日：2003-04-15

申请号：US09117705

申请日：1998-08-04

申请人： Guy P Bryan-Brown ,  Carl V Brown ,  Ian C Sage

发明人： Guy P Bryan-Brown ,  Carl V Brown ,  Ian C Sage

IPC分类号： G02F11337

CPC分类号： G02F1/1396 ,  G02F1/133753 ,  G02F1/13725 ,  G02F2001/133742

摘要： A liquid crystal device comprises a layer of nematic or long pitch cholesteric liquid crystal material contained between two cell walls. One wall (A) carries a surface treatment giving a first azimuthal alignment direction with or without a surface pretilt to liquid crystal molecules. The other wall (B) carries a surface treatment (17) capable of separately providing both a preferred, substantially homeotropic alignment of the adjacent liquid crystal, and a defined azimuthal second alignment direction to the adjacent liquid crystal dependent upon liquid crystal molecular arrangement. The first and second alignment directions are approximately orthogonal. Polarisers may be arranged on either side of the cell walls with their polarisation axes parallel or perpendicular to the two azimuthal directions. Alternatively an amount of dichroic dye may be incorporated in the liquid crystal material, and the device operated with one or two polarisers. The device operates between two different voltage levels, one level providing a non twisted liquid crystal molecular arrangement, the other and higher voltage providing a twisted molecular arrangement.

摘要翻译： 液晶装置包括两个单元壁之间包含的向列型或长距离胆固醇型液晶材料层。 一个壁（A）进行表面处理，给出具有或不具有预倾斜到液晶分子的表面的第一方位取向方向。 另一壁（B）承载能够根据液晶分子排列分别提供相邻液晶的优选的，基本上垂直取向的相对液晶的定向方位第二取向方向的表面处理（17）。 第一和第二取向方向近似正交。 偏振器可以布置在单元壁的任一侧上，其偏振轴平行或垂直于两个方位角方向。 或者，可以在液晶材料中引入一定量的二色性染料，并且该装置用一个或两个偏光镜操作。 该器件在两个不同的电压电平之间工作，一个级别提供非扭曲的液晶分子排列，另一个和更高的电压提供扭曲的分子排列。