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公开(公告)号：US06570550B1
公开(公告)日：2003-05-27
申请号：US09045247
申请日：1998-03-20
IPC分类号： G09G336
CPC分类号： 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
摘要： 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 and 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.
摘要翻译： 一种用于生产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）被设计成在导通和截止状态之间切换的铁电液晶材料层， ）有源矩阵装置，包括用于将液晶材料层分成单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电路写入预选数据的装置，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。
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12.发明授权Compensator arrangements for a continuously viewable, DC field-balanced, reflective, ferroelectric liquid crystal display system 失效用于连续可见的直流场平衡，反射，铁电液晶显示系统的补偿器布置
公开(公告)号：US6100945A
公开(公告)日：2000-08-08
申请号：US251627
申请日：1999-02-17
IPC分类号： G02F1/137 , C09K19/02 , G02F1/1335 , G02F1/13357 , G02F1/13363 , G02F1/1347 , G02F1/135 , G02F1/141
CPC分类号： G02F1/141 , G02F1/13471 , G02F1/13363 , G02F2001/133616 , G02F2001/133638 , G02F2203/02 , G02F2203/12
摘要： A display system for acting on light entering the system includes a reflective ferroelectric liquid crystal spatial light modulator and a polarizer arrangement. The polarizer arrangement includes a polarizer for polarizing the light entering the system and directing the polarized light into the spatial light modulator along an optical path having an optical path axis. The reflective spatial light modulator acts on the polarized light to produce an optical output that is directed from the spatial light modulator back into the polarizing arrangement along substantially the same optical path axis that the polarized light is directed into the spatial light modulator. The polarizing arrangement also includes an analyzer configured to receive and analyze the optical output of the spatial light modulator and to direct the analyzed optical output out of the system. A compensator is positioned in the optical path between the polarizer of the polarizing arrangement and the spatial light modulator and in the optical path between the spatial light modulator and the analyzer. The compensator includes a layer of ferroelectric liquid crystal light modulating medium switchable between a first compensator state and a second compensator state. The compensator is configured such that the compensator inverts the optical output of the spatial light modulator when the compensator is switched to the second state. The layer of ferroelectric liquid crystal light modulating medium of the compensator and the spatial light modulator having retardances that are substantially different than one another.
摘要翻译： 用于作用于进入系统的光的显示系统包括反射铁电液晶空间光调制器和偏振器装置。 偏振器装置包括偏振器，用于使进入系统的光偏振，并将偏振光沿具有光路轴的光路引导到空间光调制器中。 反射空间光调制器作用在偏振光上以产生光输出，该光输出从空间光调制器引导到偏振装置沿基本上相同的光路轴，偏振光被引导到空间光调制器中。 偏振装置还包括分析器，其被配置为接收和分析空间光调制器的光输出并将分析的光输出引导出系统。 补偿器位于偏振装置的偏振器和空间光调制器之间的光路中，并且位于空间光调制器和分析器之间的光路中。 补偿器包括可在第一补偿器状态和第二补偿器状态之间切换的铁电液晶光调制介质层。 补偿器被配置为使得当补偿器切换到第二状态时，补偿器将空间光调制器的光输出反相。 补偿器的铁电液晶光调制介质层和具有彼此基本不同的延迟的空间光调制器。
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公开(公告)号：US08107344B2
公开(公告)日：2012-01-31
申请号：US12639821
申请日：2009-12-16
IPC分类号： G11B7/00
CPC分类号： G02F1/292 , G02F1/13363 , G02F2001/133565 , G03H1/02 , G03H1/16 , G03H2001/0224 , G03H2223/13 , G11B7/0065 , G11B7/128 , G11B7/1369
摘要： 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.
摘要翻译： 具有作为其内部部件提供的相位掩模的空间光调制器（SLM）。 相位掩模可以被提供为在透射盖窗的内表面上的相对较高的折射率材料的多层表面，或者作为在窗口窗口和SLM的像素之间的单独透射窗口。 如果相位掩模与液晶SLM一起使用，则可能需要通过提供相邻较低折射率材料层与多层表面相邻来平坦化与液晶接触的盖窗的表面。 相位掩模也可以通过图案化离子沉积在透射覆盖窗口上提供，将图案化光曝光到光聚合物材料上，或以某种其它合适的方式。 将像素电极排列成多个电平中的一个而不是处于精确的平面关系，也可以有效地产生相位掩模。
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公开(公告)号：US08059142B2
公开(公告)日：2011-11-15
申请号：US11969734
申请日：2008-01-04
CPC分类号： G09G3/3629 , G09G3/2014 , G09G3/3618 , G09G2300/0809 , G09G2300/0857 , G09G2310/0235 , G09G2320/0285 , G09G2320/0673
摘要： 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.
摘要翻译： 实现例如不同于1的伽马特性的显示系统，例如2的伽马特性。 伽马特性可以是可选择的，并且其可以通过定时特性而不是通过改变光源的强度来选择。 还通过选择存储器寄存器来存储相对较低重要性的位来补偿缺陷存储器寄存器。
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15.发明授权公开(公告)号：US06507330B1
公开(公告)日：2003-01-14
申请号：US09809741
申请日：2001-03-14
申请人： Mark A. Handschy , Jiuzhi Xue , Lianhua Ji
发明人： Mark A. Handschy , Jiuzhi Xue , Lianhua Ji
IPC分类号： G09G336
CPC分类号： G09G3/3651 , G09G3/36 , G09G3/3614 , G09G3/3655 , G09G2310/0251 , G09G2310/06 , G09G2310/063 , G09G2320/02 , G09G2320/0204 , G09G2320/0257
摘要： A method of operating a liquid crystal cell includes DC-balancing by displaying an inverse image with electric fields of increased magnitude relative to the image producing electric fields. While the inverse image is displayed the image is prevented from being visible by either turning off the light source or re-directing or blocking the light from reaching the viewing area. The image producing electric fields and the inverse image producing electric fields are such that the cumulative time integral of the electric fields that are present in one direction across the liquid crystal material is substantially equal to the cumulative time integral of the electric fields that are present in the opposite direction during the given period of time during the operation of liquid crystal cell. The time duration of the inverse image portion is shorter than the time duration of the image portion by an amount proportional to the increased magnitude of the additional electric fields. Because of the shorter time period when no image is visible, the system brightness is increased.
摘要翻译： 操作液晶单元的方法包括通过相对于产生图像的电场显示具有增大幅度的电场的逆图像的DC平衡。 当显示逆图像时，通过关闭光源或重新引导或阻挡光线到达观看区域，防止图像可见。 图像产生电场和逆图像产生电场使得在液晶材料上沿一个方向存在的电场的累积时间积分基本上等于存在于电场中的电场的累积时间积分 在液晶单元操作期间的给定时间段内的相反方向。 逆图像部分的持续时间比图像部分的持续时间短，与附加电场的幅度增加成比例的量。 由于无图像可见时间较短，系统亮度增加。
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16.发明授权
公开(公告)号：US5500748A
公开(公告)日：1996-03-19
申请号：US187592
申请日：1994-01-26
IPC分类号： G02F1/1368 , G09G3/36 , G02F1/1343
CPC分类号： G02F1/1368 , G09G3/3648 , G09G2300/0885 , G09G2310/0289
摘要： There is disclosed herein a liquid crystal spatial light modulator which includes, among other components, a layer of liquid crystal material which changes the way in which it acts on light in response to predetermined changes in voltage across the layer, whereby to modulate the light so acted upon, and an arrangement for applying a light modulating voltage across the layer of liquid crystal material and for modulating the voltage during a given modulation period. This latter arrangement includes a non-linear capacitor and a voltage coupling scheme for changing the voltage across the capacitor during the modulation period in a way which changes the capacitance of the capacitor and thereby capacitively couples at least a part of the change in voltage across the capacitor to the layer of liquid crystal material.
摘要翻译： 这里公开了一种液晶空间光调制器，其包括响应于跨越层的电压的预定变化而改变其作用于光的方式的液晶材料层，由此调制光线 以及用于在液晶材料层上施加光调制电压并在给定的调制周期期间调制电压的装置。 后一种布置包括非线性电容器和电压耦合方案，用于在调制周期期间以改变电容器电容的方式改变电容器两端的电压，从而电容耦合电压变化的至少一部分 电容器到液晶材料层。
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17.发明授权Polarization conversion and color-combination techniques for pico projector illuminators 失效pico投影机照明器的极化转换和色彩组合技术公开(公告)号：US08337020B2
公开(公告)日：2012-12-25
申请号：US12611021
申请日：2009-11-02
IPC分类号： G03B21/14
CPC分类号： G02B27/283 , G03B21/2013 , G03B21/2033 , G03B21/2073 , G03B33/06 , H04N9/3167 , H04N9/3173
摘要： Disclosed are illumination systems especially suitable for very small data projectors, called pico projectors. The disclosed illumination systems provide high optical efficiency for projectors that need polarized light but utilize unpolarized light sources such as light-emitting diodes. Some of the disclosed illumination systems make use of light sources of different colors, and provide polarization conversion in ways based on color-selective elements of a variety of different types to convert substantially all the light emitted by the light sources to a single polarization, without increasing the effective optical extent of the source. Other disclosed illumination system provide compact ways to combine light from differently colored light sources without the use of bulky x-cube or angled dichroic elements.
摘要翻译： 公开了特别适用于称为微型投影仪的非常小的数据投影仪的照明系统。 所公开的照明系统为需要偏振光但使用非偏振光源（例如发光二极管）的投影仪提供高光学效率。 一些所公开的照明系统利用不同颜色的光源，并且基于各种不同类型的颜色选择元件的方式提供偏振转换，以将基本上由光源发射的所有光转换成单个极化，而不需要 增加源的有效光程。 其他公开的照明系统提供了组合来自不同颜色的光源的光的紧凑方式，而不使用笨重的x立方体或有角度的二向色元件。
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公开(公告)号：US20100091631A1
公开(公告)日：2010-04-15
申请号：US12639821
申请日：2009-12-16
IPC分类号： G11B7/00
CPC分类号： G02F1/292 , G02F1/13363 , G02F2001/133565 , G03H1/02 , G03H1/16 , G03H2001/0224 , G03H2223/13 , G11B7/0065 , G11B7/128 , G11B7/1369
摘要： 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.
摘要翻译： 具有作为其内部部件提供的相位掩模的空间光调制器（SLM）。 相位掩模可以被提供为在透射盖窗的内表面上的相对较高的折射率材料的多层表面，或者作为在窗口窗口和SLM的像素之间的单独透射窗口。 如果相位掩模与液晶SLM一起使用，则可能需要通过提供相邻较低折射率材料层与多层表面相邻来平坦化与液晶接触的盖窗的表面。 相位掩模也可以通过图案化离子沉积在透射覆盖窗口上提供，将图案化光曝光到光聚合物材料上，或以某种其它合适的方式。 将像素电极排列成多个电平中的一个而不是处于精确的平面关系，也可以有效地产生相位掩模。
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公开(公告)号：US07656768B2
公开(公告)日：2010-02-02
申请号：US11046197
申请日：2005-01-27
IPC分类号： G11B7/00
CPC分类号： G02F1/292 , G02F1/13363 , G02F2001/133565 , G03H1/02 , G03H1/16 , G03H2001/0224 , G03H2223/13 , G11B7/0065 , G11B7/128 , G11B7/1369
摘要： 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.
摘要翻译： 具有作为其内部部件提供的相位掩模的空间光调制器（SLM）。 相位掩模可以被提供为在透射盖窗的内表面上的相对较高的折射率材料的多层表面，或者作为在窗口窗口和SLM的像素之间的单独透射窗口。 如果相位掩模与液晶SLM一起使用，则可能需要通过提供相邻较低折射率材料层与多层表面相邻来平坦化与液晶接触的盖窗的表面。 相位掩模也可以通过图案化离子沉积在透射覆盖窗口上提供，将图案化光曝光到光聚合物材料上，或以某种其它合适的方式。 将像素电极排列成多个电平中的一个而不是处于精确的平面关系，也可以有效地产生相位掩模。
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公开(公告)号：US20080284973A1
公开(公告)日：2008-11-20
申请号：US12122452
申请日：2008-05-16
IPC分类号： G02F1/13
CPC分类号： G02F1/141 , G02F1/1337
摘要： A method of fabricating a liquid crystal display device by introducing a ferroelectric liquid crystal (FLC) between two substrates, contacting the FLC to a molecularly smooth edge, and aligning the FLC by introducing a temperature gradient normal to the edge. In one embodiment, the FLC is aligned by cooling it from an isotropic phase to a smectic phase at a rate that is relatively slow. For example, the cooling rate may be less than about 3 degrees Celsius per hour. In one embodiment, smectic layers are formed that are parallel to the edge. In one embodiment, the molecularly smooth edge is an air bubble.
摘要翻译： 通过在两个基板之间引入铁电液晶（FLC），将FLC接触到分子平滑边缘并通过引入与边缘垂直的温度梯度来对准FLC来制造液晶显示装置的方法。 在一个实施方案中，通过以相对较慢的速率将FLC从各向同性相冷却至近晶相来对准FLC。 例如，冷却速度可以小于约3摄氏度/小时。 在一个实施例中，形成平行于边缘的近晶层。 在一个实施例中，分子平滑边缘是气泡。
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