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    MODULATION ALGORITHM FOR LIGHT MODULATOR
    41.
    发明申请
    MODULATION ALGORITHM FOR LIGHT MODULATOR 审中-公开
    光调制器的调制算法

    公开(公告)号：WO0242834A3

    公开(公告)日：2003-01-03

    申请号：PCT/US0144079

    申请日：2001-11-21

    Applicant: DISPLAYTECH INC

    Inventor： MEADOWS MICHAEL R ,  MALZBENDER RAINER M ,  DALLAS JAMES M ,  LARSEN PER H

    IPC: G09G3/20 ,  G09G3/34 ,  G02B26/00 ,  G02B26/08 ,  G02F1/133 ,  G02F1/136 ,  G09G3/36

    CPC classification number: G09G3/34 ,  G09G3/2033 ,  G09G3/2037 ,  G09G2320/02

    Abstract: A multi-state light modulating system (70) having grayscale based on a series of time intervals includes an arrangement that establishes (200) the duration of each time interval such that the time intervals in the series have progressively varying duration. The arrangement also determines a drive signal for each time interval that causes the light modulator to assume a specific light modulating state. The arrangement also causes the light modulator to produce a desired time-averaged light level over the series of time intervals by in part driving (214) the light modulator using the drive signal that corresponds to a particular time inverval for a duration that is longer (212) than the duration of the time interval. The arrangement also or alternatively arranges (210) the series of time intervals such that the light modulator is in the same state immediately prior to the particular time interval as the lights modulator is in immediately after the time interval.

    Abstract translation: 具有基于一系列时间间隔的灰阶的多状态光调制系统（70）包括建立（200）每个时间间隔的持续时间以使得该系列中的时间间隔具有逐渐变化的持续时间的布置。 该装置还确定导致光调制器呈现特定光调制状态的每个时间间隔的驱动信号。 该布置还使得光调制器通过部分地使用对应于特定时间反转的驱动信号来驱动光调制器（214）长时间段来产生期望的时间平均光级， 212）比时间间隔的持续时间。 该布置还可选地布置（210）一系列时间间隔，使得在光调制器紧接在时间间隔之后，光调制器在特定时间间隔之前处于相同状态。

    ACTIVE MATRIX LIQUID CRYSTAL IMAGE GENERATOR
    42.
    发明申请
    ACTIVE MATRIX LIQUID CRYSTAL IMAGE GENERATOR 审中-公开
    主动矩阵液晶图像发生器

    公开(公告)号：WO1996019794A1

    公开(公告)日：1996-06-27

    申请号：PCT/US1995016359

    申请日：1995-12-14

    Applicant: DISPLAYTECH, INC.

    Inventor： DISPLAYTECH, INC. ,  HANDSCHY, Mark, A. ,  MEADOWS, Michael, R.

    IPC: G09G03/36

    CPC classification number: G09G3/3651 ,  G02F1/133553 ,  G02F1/135 ,  G02F1/136277 ,  G02F1/141 ,  G02F2001/133622 ,  G02F2203/12 ,  G02F2203/30 ,  G09G3/2022 ,  G09G3/2025 ,  G09G3/2029 ,  G09G3/2081 ,  G09G3/3406 ,  G09G2310/0235 ,  G09G2310/0237 ,  G09G2310/0278 ,  G09G2310/061 ,  G09G2320/0633 ,  G09G2320/064

    Abstract: A system for producing spatially modulated monochrome or color light having gray scale includes an active matrix liquid crystal spatial light modulator having light modulating means including (i) a layer of ferroelectric liquid crystal material which is designed to switch between ON an OFF states and (ii) active matrix means including VLSI circuitry for dividing the layer of liquid crystal material into an array of individual liquid crystal pixels and for causing each of the pixels of liquid crystal material to modulate light individually by switching between the ON and OFF states in a way that depends upon the data which the VLSI circuitry is written. The system also includes illumination means having a light source for directing light from the source into the pixel-divided layer of ferroelectric liquid crystal material in a specific way. And finally, the system includes means for writing the VLSI circuitry with preselected data in accordance with a particular data ordering scheme such that the circuitry, in response to the written data, causes the pixels of liquid crystal material to individually switch between their ON and OFF states and therefore modulate light from the source in a way which, depending upon the data, produces a specific overall pattern of gray scale light.

    Abstract translation: 一种用于制造具有灰度级的空间调制单色或彩色光的系统包括有源矩阵液晶空间光调制器，其具有光调制装置，该调制装置包括：（i）一层铁电液晶材料，其设计成在ON状态和 ）有源矩阵装置，包括用于将液晶材料层划分成各个液晶像素的阵列的VLSI电路，并且使得液晶材料的每个像素通过在ON和OFF状态之间切换来单独地调制光， 取决于VLSI电路写入的数据。 该系统还包括具有用于将光源以特定方式引导到铁电液晶材料的像素分割层的光源的照明装置。 最后，该系统包括用于根据特定数据排序方案将VLSI电路写入预先选择的数据的装置，使得电路响应于写入的数据使液晶材料的像素在其ON和OFF之间单独切换 状态并且因此以取决于数据产生灰度光的特定总体图案的方式调制来自光源的光。

    DIGITAL DISPLAY
    43.
    发明公开
    DIGITAL DISPLAY 审中-公开
    数字显示

    公开(公告)号：EP2109859A2

    公开(公告)日：2009-10-21

    申请号：EP08713572.9

    申请日：2008-01-04

    Applicant: Displaytech, Inc.

    Inventor： HANDSCHY, Mark A. ,  DALLAS, James, M. ,  LARSEN, Per, Harold ,  HOLLENBECK, David, B.

    IPC: G09G5/02

    CPC classification number: G09G3/3629 ,  G09G3/2014 ,  G09G3/3618 ,  G09G2300/0809 ,  G09G2300/0857 ,  G09G2310/0235 ,  G09G2320/0285 ,  G09G2320/0673

    Abstract: A display system that achieves a gamma characteristic different than 1, such as a gamma characteristic of 2 for example. The gamma characteristic may be selectable and it may be selectable via timing characteristics rather than by varying the intensity of the light source. Defective memory registers are also compensated for by selecting them to store bits of relatively lower significance.

    Abstract translation: 实现不同于1的伽玛特性的显示系统，例如2的伽玛特性。 伽马特性可以是可选择的，并且它可以通过时序特性而不是通过改变光源的强度来选择。 有缺陷的存储器寄存器也通过选择它们来存储相对较低重要性的位来进行补偿。

    DUAL MODE NEAR-EYE AND PROJECTION DISPLAY SYSTEM
    45.
    发明公开
    DUAL MODE NEAR-EYE AND PROJECTION DISPLAY SYSTEM 审中-公开
    眼睛闭上双模式和投影显示系统

    公开(公告)号：EP1346337A1

    公开(公告)日：2003-09-24

    申请号：EP01995158.1

    申请日：2001-11-20

    Applicant: Displaytech, Inc.

    Inventor： WRIGHT,Haviland ,  McDONALD,David.C ,  O'DONNELL, Patrick ,  ARTIGLIERE, Anthony ,  HANDSCHY, Mark.A

    IPC: G09G3/00

    CPC classification number: G03B13/04 ,  G03B17/54 ,  H04N5/2254 ,  H04N5/74 ,  H04N5/7416 ,  H04N9/3141 ,  H04N9/3176

    Abstract: A dual-mode display system (20), for applications such as viewfinders/displays in a digital still camera or video camcorder, may include a single spatial light modulator microdisplay (22) that can be used both to provide a virtual image at a viewing location, such as near-eye viewing port (28), ant to provide a real image that can be projected onto a surface such as a projection screen (34). The projection screen may be on an exterior surface of the camera, it may be extendable from the device such as with a camcorder, or it may be an external screen such as a on a wall, desk, piece of paper, or a traditional projection screen. The optical paths for the near-eye and projection modes may be entirely different, with only the SLM (22) in common, or they be largely or entirely common paths. Different light sources may be used for the two modes, or it may be the same light source. The display system may switch between the two modes by selecting one of two different light sources or by moving an optical element, such as a lens or reflective surface (24).

    LIQUID CRYSTAL MATERIALS HAVING SILYL TAIL GROUPS
    47.
    发明公开
    LIQUID CRYSTAL MATERIALS HAVING SILYL TAIL GROUPS 审中-公开
    液晶材料硅烷

    公开(公告)号：EP1723215A2

    公开(公告)日：2006-11-22

    申请号：EP05713373.8

    申请日：2005-02-11

    Applicant: Displaytech, Inc.

    Inventor： THURMES, William ,  MORE, Kundalika ,  GOUGH, Neil ,  VOHRA, Rohini ,  WAND, Michael ,  PARGHI, Deven

    IPC: C09K19/12

    CPC classification number: C09K19/406 ,  Y10T428/10

    Abstract: Provided are additive liquid crystalline compounds that, when added to one or more other components, form a mixture which can be supercooled. One class of additive liquid crystalline compounds are silyl-containing liquid crystalline compounds. Also provided are devices incorporating one or more silyl-containing liquid crystalline compound described herein and optionally one or more other components. The invention also includes the method of using liquid crystalline mixtures containing silyl-containing liquid crystalline compounds to suppress the crystallization, in a liquid crystal cell, of these mixtures at temperatures below their crystallization point.

    PHASE MASKS FOR USE IN HOLOGRAPHIC DATA STORAGE
    49.
    发明公开
    PHASE MASKS FOR USE IN HOLOGRAPHIC DATA STORAGE 审中-公开
    相位掩膜用于本全息数据存储

    公开(公告)号：EP1751746A2

    公开(公告)日：2007-02-14

    申请号：EP05712209.5

    申请日：2005-01-27

    Applicant: Displaytech, Inc.

    Inventor： HANDSCHY, Mark ,  O'CALLAGHAN, Michael J. ,  WALKER, Christopher M.

    IPC: G11B7/00

    CPC classification number: G02F1/292 ,  G02F1/13363 ,  G02F2001/133565 ,  G03H1/02 ,  G03H1/16 ,  G03H2001/0224 ,  G03H2223/13 ,  G11B7/0065 ,  G11B7/128 ,  G11B7/1369

    Abstract: A spatial light modulator (SLM) having a phase mask that is provided as an internal component thereof. The phase mask can be provided as a multilevel surface of relatively higher index of refraction material on an inner surface of a transmissive cover window or as a separate transmissive window between the cover window and the pixels of the SLM. If the phase mask is to be used with a liquid crystal SLM, then it may be desirable to planarize the surface of the cover window contacting the liquid crystal by providing a layer of relatively lower index of refraction material adjacent the multilevel surface. The phase mask can also be provided on the transmissive cover window by patterned ion deposition, exposing patterned light to a photopolymeric material, or in some other suitable fashion. Arranging for the pixel electrodes to be at one of multiple levels rather than lying in an exactly planar relationship can also effectively create the phase mask.

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