公开(公告)号：US20110249226A1

公开(公告)日：2011-10-13

申请号：US13164592

申请日：2011-06-20

Applicant: Terry J. Scheffer ,  Jiuzhi Xue

Inventor： Terry J. Scheffer ,  Jiuzhi Xue

IPC: G02F1/1335

CPC classification number: G02F1/133753 ,  G02F2001/133761 ,  G02F2001/134372 ,  G02F2001/1398

Abstract: Self-compensating, quasi-homeotropic liquid crystal devices overcome the contrast reducing effects of smaller pretilt angles. The devices exhibit extremely high contrast ratio but at the same time suppress fringe field-induced disclination lines in high pixel density and small pixel size quasi-homeotropic displays. The surface pretilt and cell twist angles are set at values that, in combination, contribute to establishing a cuspate singularity in the contrast ratio for normally incident light in response to a drive signal switching the liquid crystal device to the OFF director field state that provides nearly 0% optical efficiency. The OFF director field state corresponds to a subthreshold drive level that provides for the liquid crystal device self-compensation for in-plane optical retardation. Setting the cell gap (“d”) to provide substantially 100% optical efficiency in response to a value of the drive signal switching the liquid crystal device to the ON director field state achieves optimal dynamic range for the liquid crystal device.

Abstract translation: 自补偿准准垂直液晶装置克服了较小预倾斜角的对比度降低效果。 器件表现出非常高的对比度，同时抑制高像素密度和小像素大小准垂直显示器中的条纹场引发的旋错线。 表面预倾斜和单元扭曲角被设定为这样的值，其组合有助于响应于将液晶装置切换到提供近似的OFF导向器场状态的驱动信号，在正常入射光的对比度中建立尖点奇点 0％光学效率。 OFF导向器场状态对应于提供液晶装置对面内光学延迟的自补偿的亚阈值驱动电平。 设置单元间隙（“d”）以响应于将液晶装置切换到导通器磁场状态的驱动信号的值来提供基本上100％的光学效率，从而实现了液晶装置的最佳动态范围。

公开(公告)号：US5485173A

公开(公告)日：1996-01-16

申请号：US678736

申请日：1991-04-01

Applicant: Terry J. Scheffer ,  Benjamin R. Clifton

Inventor： Terry J. Scheffer ,  Benjamin R. Clifton

IPC: G02F1/133 ,  G09G3/20 ,  G09G3/36

CPC classification number: G09G3/3625 ,  G09G3/3622 ,  G09G3/2011 ,  G09G3/2014 ,  G09G3/2022

Abstract: An addressing method and apparatus addresses faster responding liquid crystal display panels (LCDs) so that video rate, high information content LCDs having time constants on the order of 50 ms or less are perceived as having improved contrast by limiting peak voltage levels across the pixels. In a preferred embodiment, a first set of LCD electrodes is continuously driven with signals each comprising a train of pulses that are periodic in time, have a common period T, are independent of the information to be displayed, and are preferably orthonormal. Plural column signals are generated from the collective information states of the pixels defined by the overlap with a second electrode pattern. Each column signal is proportional to the sum, obtained by considering each pixel in the column, of the exclusive-or (XOR) products of the logic level of the amplitude of each row signal times the logic level of the information state of the pixel corresponding to that row. Hardware implementation comprises an external video source, a controller that receives and formats video data and timing information, a storage device that stores display data, a row signal generator, a column signal generator, and at least one LCD panel. Alternative embodiments provide circuits to reduce the number of column voltage levels required to generate a displayed image.

Abstract translation: 寻址方法和装置解决了更快响应的液晶显示面板（LCD），使得具有大约50ms或更小的时间常数的视频速率，高信息内容LCD被认为通过限制像素上的峰值电压电平具有改善的对比度。 在优选实施例中，第一组LCD电极被连续驱动，每个信号包括在时间上是周期性的脉冲串，具有公共周期T，独立于要显示的信息，并且优选地是正交的。 从与第二电极图案的重叠限定的像素的集合信息状态生成多个列信号。 每列信号与通过考虑列中的每个像素获得的和每行行信号的幅度的逻辑电平的异或（XOR）乘积乘以对应于像素的信息状态的逻辑电平而得到的和成比例 到那行 硬件实现包括外部视频源，接收和格式化视频数据和定时信息的控制器，存储显示数据的存储设备，行信号发生器，列信号发生器和至少一个LCD面板。 替代实施例提供用于减少生成显示图像所需的列电压电平数量的电路。

公开(公告)号：US4239349A

公开(公告)日：1980-12-16

申请号：US477541

申请日：1974-06-07

Applicant: Terry J. Scheffer

Inventor： Terry J. Scheffer

IPC: H04N5/74 ,  G02F1/1335 ,  G02F1/1347 ,  G02F1/137 ,  G02F1/139 ,  G09F9/30 ,  G02F1/133

CPC classification number: G02F1/1396 ,  G02F1/133533 ,  G02F1/133528 ,  G02F2203/02

Abstract: An arrangement for a polychrome display comprises in serial association a light source, a linear polarizing filter, at least one nematic liquid crystal rotating element, and either a passive birefringent retardation plate followed by a further neutral linear polarizing filter or a selective polarizer.

Abstract translation: 用于多色显示器的布置包括将光源，线性偏振滤光器，至少一个向列型液晶旋转元件以及随后为另外的中性线性偏振滤光器或选择性偏振器的无源双折射延迟板串联连接。

公开(公告)号：US4126383A

公开(公告)日：1978-11-21

申请号：US792591

申请日：1977-05-02

Applicant: Rino Doriguzzi ,  Markus Egloff ,  Meinolph Kaufmann ,  Terry J. Scheffer

Inventor： Rino Doriguzzi ,  Markus Egloff ,  Meinolph Kaufmann ,  Terry J. Scheffer

IPC: G09F9/00 ,  G02F1/1335 ,  G02F1/13357 ,  G04G9/00 ,  G09F9/30 ,  G02F1/13

CPC classification number: G02F1/133615 ,  G02F1/1335 ,  G04G9/0041 ,  G09F9/30

Abstract: An electrooptic display device which can be operated either in the transmission or reflection mode. The display device consists of a liquid crystal display cell and a semitransparent reflector located in or on a circuit board having a light emitting element disposed therein and characterized by at least one light conducting region.

Abstract translation: 可以在传输或反射模式下操作的电光显示装置。 该显示装置由液晶显示单元和半透射反射器组成，其位于电路板中或其上具有发光元件的半透射反射器，其特征在于至少一个导光区域。

公开(公告)号：US20120044431A1

公开(公告)日：2012-02-23

申请号：US13073764

申请日：2011-03-28

Applicant: Jesper Osterman ,  Terry J. Scheffer

Inventor： Jesper Osterman ,  Terry J. Scheffer

IPC: G02F1/1347

CPC classification number: G02B27/26 ,  G02F1/13363 ,  G02F1/13471 ,  G02F2001/133637 ,  G02F2001/133638 ,  G02F2203/07 ,  H04N13/341 ,  H04N13/398

Abstract: A polarization modulator for time-multiplexed stereoscopic 3D applications rapidly switches between two polarization states in alternate subframes. The polarization modulator uses two liquid crystal devices arranged in optical series and driven such that the second device compensates a change the first device makes to an input polarization state of incident light during alternate subframes. The compensating liquid crystal devices are characterized in that, if the same voltage is applied to both of them, the second device compensates the change that the first device makes to the input polarization state, regardless of the applied voltage level. If the applied voltage is changed from one level to another and the liquid crystal material in the liquid crystal devices relaxes to the new voltage level, polarization state compensation will take place throughout the duration of the relaxation so that the slow, unpowered transition does not manifest itself as a change in polarization state.

Abstract translation: 用于时分复用立体3D应用的偏振调制器在备用子帧中快速切换两个极化状态。 偏振调制器使用以光学系列和驱动方式布置的两个液晶器件，使得第二器件在替代子帧期间补偿第一器件对入射光的输入偏振态的变化。 补偿液晶装置的特征在于，如果对它们两者施加相同的电压，则与施加的电压电平无关地，第二装置补偿第一装置对输入偏振状态的变化。 如果施加的电压从一个电平变化到另一个电平并且液晶装置中的液晶材料放松到新的电压电平，则在整个放宽期间将发生极化状态补偿，使得缓慢的无动力转换不显示 本身就是偏振态的变化。

公开(公告)号：US5367390A

公开(公告)日：1994-11-22

申请号：US126676

申请日：1993-09-24

Applicant: Terry J. Scheffer ,  Kurt R. Munson ,  Arlie R. Conner

Inventor： Terry J. Scheffer ,  Kurt R. Munson ,  Arlie R. Conner

IPC: G02F1/1335 ,  G02F1/1343

CPC classification number: G02F1/133512 ,  G02F1/134336

Abstract: A non-emissive flat panel display, such as an LCD having a plurality of pixels defined by the overlapping areas of row and column electrodes, is provided with a novel mask arrangement to block light from leaking through the interpixel spaces or gaps without electrically shorting the electrodes. The light-blocking mask is split into two parts, with one part deposited on each substrate to block the light from being transmitted through the inter-electrode gaps on the opposite substrate to improve the contrast ratio of the display.

Abstract translation: 诸如具有由行电极和列电极的重叠区域限定的多个像素的LCD的非发光平板显示器设置有新的掩模布置，以阻止光透过像素间隙或间隙而泄漏，而不会电短路 电极。 遮光掩模被分成两部分，其中一部分沉积在每个基板上以阻挡光透过相对基板上的电极间间隙，以提高显示器的对比度。

公开(公告)号：US4299720A

公开(公告)日：1981-11-10

申请号：US92961

申请日：1979-11-09

Applicant: Maged A. Osman ,  Terry J. Scheffer ,  Laszlo Revesz ,  Jurgen Markert

Inventor： Maged A. Osman ,  Terry J. Scheffer ,  Laszlo Revesz ,  Jurgen Markert

IPC: C09B3/78 ,  C09B5/24 ,  C09K19/60 ,  G02F1/13 ,  C09K3/34

CPC classification number: C09K19/603 ,  C09B3/78 ,  C09B5/24

Abstract: A liquid crystal mixture intended for electrooptical displays having no polarizers, consisting of:a nematic liquid crystal as the host phase;an optically active additive to give the host phase a cholesteric structure; andat least one pleochroic anthraquinone dye as the guest phase dissolved in the host phase, said anthraquinone dye having the formula: ##STR1## wherein R.sup.2, R.sup.3 and R.sup.4 are the same or different substituents and are selected from the group consisting of hydrogen, hydroxyl, amino, and short-chain N-monoalkylamino substituents; Y represents halogen, alkyl or alkoxy groups each with 1-16 carbon atoms, amino, alkylamino groups with 1-16 carbon atoms in the alkyl portion, nitro, or hydroxyl group; X represents halogen, amino or the group R.sup.5, wherein R.sup.5 is an alkyl group with 1-18 carbon atoms, an alkyl chain with 1-18 carbon atoms that is interrupted with one or two oxy groups or a group having the formula:--(CH.sub.2).sub.p --(O--C.sub.2 H.sub.4).sub.r --O--R.sup.6wherein p is an integer from 1 to 6, r is either zero or an integer from 1 to 6, and R.sup.6 is an alkyl group with 1-6 carbon atoms; the symbol A represents a 5- or 6-membered aromatic, alicyclic or heterocyclic ring which may be substituted with oxo- and/or imino groups, or optionally, hydroxy and/or amino groups and indices n and m can be 0, 1 or 2.

Abstract translation: 一种液晶混合物，用于没有偏振器的电光显示器，由以下组成：向列型液晶作为主体相; 使主体相呈胆甾醇结构的光学活性添加剂; 所述蒽醌染料具有下式：其中R2，R3和R4是相同或不同的取代基，并且选自由以下组成的组： 氢，羟基，氨基和短链N-单烷基氨基取代基; Y表示卤素，各自具有1-16个碳原子的烷基或烷氧基，氨基，烷基部分具有1-16个碳原子的烷基氨基，硝基或羟基; X表示卤素，氨基或基团R 5，其中R 5是具有1-18个碳原子的烷基，被一个或两个氧基中断的具有1-18个碳原子的烷基链或具有下式的基团： - （ CH2）p-（O-C2H4）rO-R6，其中p是1至6的整数，r是零或1-6的整数，R6是具有1-6个碳原子的烷基; 符号A表示可以被氧代和/或亚氨基取代的5-或6-元芳族，脂环族或杂环，或任选的羟基和/或氨基，并且索引n和m可以是0,1或 2。

公开(公告)号：US20120147280A1

公开(公告)日：2012-06-14

申请号：US13403766

申请日：2012-02-23

Applicant: Jesper Osterman ,  Terry J. Scheffer

Inventor： Jesper Osterman ,  Terry J. Scheffer

IPC: G02F1/1335 ,  G02B27/26

CPC classification number: G02B27/26 ,  G02B27/2264 ,  G02F1/13471 ,  G02F1/1393 ,  G02F1/1396 ,  H04N9/3167 ,  H04N13/337 ,  H04N13/341 ,  H04N13/363

Abstract: An optical polarization state modulator assembly for use in a stereoscopic three-dimensional image projection system includes a spatial light modulator, a light source emitting multiple wavelength components of light for incidence on the spatial light modulator, and a projection lens. A polarization converter system cooperates with the spatial light modulator to produce in alternating sequence polarized light carrying first and second perspective view images of a scene in different ones of first and second subframes. A polarization modulator, in response to first and second drive signals, imparts to, respectively, the image-carrying polarized light a first output polarization state during the first subframe and to the image-carrying polarized light a second output polarization state during the second subframe. The image-carrying polarized light in the first and second output polarization states propagates through the projection lens for transmission to an observer.

Abstract translation: 用于立体三维图像投影系统的光偏振态调制器组件包括空间光调制器，发射用于入射到空间光调制器的光的多个波长分量的光源和投影透镜。 偏振转换器系统与空间光调制器协作以交替顺序产生携带第一和第二子帧中不同的场景的第一和第二透视图像的偏振光。 响应于第一和第二驱动信号的偏振调制器在第二子帧期间分别赋予图像携带偏振光第一子帧期间的第一输出偏振状态和支持图像的偏振光的第二输出偏振状态 。 第一和第二输出偏振状态下的图像携带偏振光通过投影透镜传播，以传输给观察者。

公开(公告)号：US20090262291A1

公开(公告)日：2009-10-22

申请号：US12375899

申请日：2007-07-26

Applicant: Terry J. Scheffer ,  Jiuzhi Xue

Inventor： Terry J. Scheffer ,  Jiuzhi Xue

IPC: G02F1/1337 ,  C09K19/02 ,  G02F1/13

CPC classification number: G02F1/133753 ,  G02F2001/133761 ,  G02F2001/134372 ,  G02F2001/1398

Abstract: Self-compensating, quasi-homeotropic liquid crystal devices (100, 200, 300, 400) overcome the contrast reducing effects of smaller pretilt angles. The devices exhibit extremely high contrast ratio but at the same time suppress fringe field-induced disclination lines in high pixel density and small pixel size quasi-homeotropic displays. The surface pretilt (520, 540) and cell twist (570) angles are set at values that, in combination, contribute to establishing a cuspate singularity in the contrast ratio for normally incident light in response to a drive signal switching the liquid crystal device to the OFF director field state that provides nearly 0% optical efficiency. The OFF director field state corresponds to a subthreshold drive level that provides for the liquid crystal device self-compensation for in plane optical retardation. Setting the cell gap (“d”) to provide substantially 100% optical efficiency in response to a value of the drive signal switching the liquid crystal device to the ON director field state achieves optimal dynamic range for the liquid crystal device.

Abstract translation: 自补偿准准垂直液晶装置（100,200,300,400）克服了较小预倾斜角的对比度降低效果。 器件表现出非常高的对比度，同时抑制高像素密度和小像素大小准垂直显示器中的条纹场引发的旋错线。 表面预倾斜（520,540）和细胞扭曲（570）角度被设定为这样的值，其组合有助于响应于将液晶装置切换到液晶装置的驱动信号而在正常入射光的对比度中建立尖点奇异点 OFF指示器场状态提供近0％的光学效率。 OFF导向器场状态对应于提供用于平面光学延迟的液晶装置自补偿的亚阈值驱动电平。 设置单元间隙（“d”）以响应于将液晶装置切换到导通器磁场状态的驱动信号的值来提供基本上100％的光学效率，从而实现了液晶装置的最佳动态范围。

公开(公告)号：US5508716A

公开(公告)日：1996-04-16

申请号：US258467

申请日：1994-06-10

Applicant: Dennis W. Prince ,  Benjamin R. Clifton ,  Terry J. Scheffer ,  Arlie R. Conner

Inventor： Dennis W. Prince ,  Benjamin R. Clifton ,  Terry J. Scheffer ,  Arlie R. Conner

IPC: G09G3/20 ,  G09G3/36

CPC classification number: G09G3/3625 ,  G09G2310/0205 ,  G09G3/2011 ,  G09G3/2018

Abstract: A method and an apparatus for addressing a liquid crystal display (10) groups together row electrodes (28) and applies the same row addressing signal to all row electrodes in the group (48). The groupings are cyclically changed in successive addressing cycles. An image data conditioner (54) determines for use in calculating the column signals a pixel information value based upon the information values of one or more of the pixels in the selected group of row. Grouping the row electrodes reduces the effective multiplex ratio, thereby increasing the selection ratio and producing a faster responding display having higher contrast and a wider viewing angle.

Abstract translation: 用于寻址液晶显示器（10）的方法和装置将行电极（28）组合在一起，并将相同的行寻址信号施加到组（48）中的所有行电极。 分组在连续的寻址周期中周期性地改变。 图像数据调节器（54）基于所选择的行组中的一个或多个像素的信息值，确定用于计算列信号的像素信息值。 对行电极进行分组降低了有效的复用率，从而增加了选择比，并产生了具有较高对比度和更宽视角的更快响应显示。