公开(公告)号：US06498632B1

公开(公告)日：2002-12-24

申请号：US09300347

申请日：1999-04-27

申请人： Mark M. Butterworth ,  Rene P. Helbing

发明人： Mark M. Butterworth ,  Rene P. Helbing

IPC分类号： G02F11335

CPC分类号： H04N9/312 ,  G02F1/13471 ,  G02F1/141 ,  G02F2202/40 ,  H04N9/3105 ,  H04N9/3167

摘要： A color, high-throughput, ferroelectric liquid crystal-based light valve comprising a light input, a light output, a beam splitter, a color separator, reflective spatial light modulators, and a switchable half-wave plate. Light polarized parallel to a first direction is received through the light input. Light from the light input and reflected by the spatial light modulators is output from the light output. The reflective spatial light modulators are structured as a quarter-wave plates and each has a principal axis that switches through an angle &phgr;. The beam splitter has orthogonal directions of maximum transmissivity and maximum reflectivity, one of which is parallel to the first direction. The beam splitter is located and aligned relative to the light input, the light output, and the color separator to transmit or reflect the light from the light input towards the color separator, and to reflect or transmit, respectively, towards the light output the light reflected by each of the spatial light modulators and having a direction of polarization substantially orthogonal to the first direction. The switchable half-wave plate is located between the beam splitter and the color separator, is structured as a half-wave plate and has a principal axis that switches through an angle &thgr;, substantially equal to &phgr;/2. The switchable half-wave plate inverts the sense of the light valve during the balance period of each display period to enable the light valve to generate a positive image, and therefore be illuminated, during the balance period in addition to during the illumination period.

摘要翻译： 一种颜色高通量的铁电液晶型光阀，包括光输入，光输出，分束器，分色器，反射空间光调制器和可切换半波片。 平行于第一方向的偏振光通过光输入被接收。 来自光输入并由空间光调制器反射的光从光输出输出。 反射空间光调制器被构造为四分之一波片，并且每个都具有通过角度phi切换的主轴。 分束器具有最大透射率和最大反射率的正交方向，其中一个平行于第一方向。 分束器相对于光输入，光输出和颜色分离器定位和对准，以将来自光输入的光透射或反射到分色器，并且分别反射或透射到光输出光 由每个空间光调制器反射并且具有基本上与第一方向正交的偏振方向。 可切换半波片位于分束器和分色器之间，被构造为半波片，并具有切换基本上等于phi / 2的角度θ的主轴。 可切换半波片在每个显示周期的平衡期间反转光阀的感测，以使光阀产生正像，并且因此在平衡期间除了在照明周期之外也被照亮。

公开(公告)号：US06313820B1

公开(公告)日：2001-11-06

申请号：US09239597

申请日：1999-01-29

申请人： Rene P. Helbing ,  Mark M. Butterworth

发明人： Rene P. Helbing ,  Mark M. Butterworth

IPC分类号： G09G336

CPC分类号： G09G3/3629 ,  G09G2320/0204

摘要： A method of operating a ferroelectric liquid crystal-based spatial light modulator in a non-DC-Balanced mode to delay the onset of pixel sticking. The method includes providing a spatial light modulator including a transparent electrode, a pixellated electrode, and a ferroelectric liquid crystal layer sandwiched between the transparent electrode and the pixellated electrode. The spatial light modulator is illuminated with a light source for an illumination time. A portion of the pixellated electrode is set to a high drive signal voltage level during a first portion of illumination time, and set to a low drive signal voltage level during a second portion of the illumination time. The transparent electrode is maintained at a first voltage potential between the high drive signal voltage level and the low drive signal voltage level during the first and second portions of illumination time. The spatial light modulator is then darkened for a darkened time. The transparent electrode voltage potential is raised to a positive spiking voltage exceeding the first voltage potential for a first portion of the darkened time. The transparent electrode voltage potential is then lowered to a negative spiking voltage below the first voltage potential for a second portion of the darkened time. The method according to the invention then repeats itself beginning with the step of illuminating the spatial light modulator.

摘要翻译： 一种以非直流平衡模式操作基于铁电液晶的空间光调制器以延迟像素粘附开始的方法。 该方法包括提供包括透明电极，像素化电极和夹在透明电极和像素化电极之间的铁电液晶层的空间光调制器。 空间光调制器用光源照射照明时间。 像素化电极的一部分在照明时间的第一部分被设置为高的驱动信号电压电平，并且在照明时间的第二部分期间被设置为低的驱动信号电压电平。 透明电极在照明时间的第一和第二部分期间保持在高驱动信号电压电平和低驱动信号电压电平之间的第一电压电位。 然后空间光调制器变暗以变暗。 透明电极电压电位在黑暗时间的第一部分升高到超过第一电压电位的正尖峰电压。 然后，在黑暗时间的第二部分，透明电极电压电位降低到低于第一电压电位的负峰值电压。 然后根据本发明的方法从照亮空间光调制器的步骤开始重复。

公开(公告)号：US5942284A

公开(公告)日：1999-08-24

申请号：US757864

申请日：1996-11-27

申请人： Ronald Hiskes ,  Rene P. Helbing ,  Stephen A. DiCarolis

发明人： Ronald Hiskes ,  Rene P. Helbing ,  Stephen A. DiCarolis

IPC分类号： C09K11/56 ,  C23C16/30 ,  C23C16/00

CPC分类号： C23C16/305 ,  C09K11/562

摘要： A method for depositing a thin film including a sulfide of a metal on a substrate. First and second vapor streams are generated and combined in the vicinity of the substrate. The first vapor stream includes an organic compound containing the metal is generated. The second vapor stream includes a mercaptan. The preferred mercaptan is tertrary-butyl-mercaptan. The preferred metal precursor is a .beta.-diketonate of the metal.

摘要翻译： 一种在基板上沉积包含金属硫化物的薄膜的方法。 在基板附近产生第一和第二蒸气流并组合。 产生包含含有金属的有机化合物的第一蒸气流。 第二蒸气流包括硫醇。 优选的硫醇是叔丁基 - 硫醇。 优选的金属前体是金属的β-二酮化物。