公开(公告)号：US06674489B1

公开(公告)日：2004-01-06

申请号：US09369310

申请日：1999-08-06

申请人： Shuichi Kagawa ,  Hiroaki Sugiura ,  Kohei Teramoto ,  Shinsuke Shikama ,  Yoshiteru Suzuki

发明人： Shuichi Kagawa ,  Hiroaki Sugiura ,  Kohei Teramoto ,  Shinsuke Shikama ,  Yoshiteru Suzuki

IPC分类号： H04N912

CPC分类号： H04N9/3158 ,  G02B5/20 ,  G02B26/008 ,  H04N9/3114

摘要： In an image display which reproduces a color image by using lights color-separated into four or more colors through color filters, the objects of the invention are to effectively utilize the energy of light from a light source and to reduce the effect that a slight shift of the spectral transmittance characteristics of the color filters exerts on the spectral distributions of the lights after color separated. In an image display having a light source and four or more kinds of color filters and for color-separating light emitted from the light source into four or more colors through the four or more kinds of color filters and reproducing a color image by using the color-separated lights, the spectral transmittance characteristics of the color filters are set so that the cutoff wavelengths of the four or more kinds of color filters exist in a wavelength region in which the spectral distributions obtained by multiplying the spectral emissivity characteristic of the light emitted from the light source by the color matching functions are smaller than the values obtained by multiplying the average values of the spectral distributions in the wavelength region from 380 to 780 nm by an integer.

摘要翻译： 在通过使用通过滤色器分色为四种或更多种颜色的光再现彩色图像的图像显示器中，本发明的目的是有效地利用来自光源的光的能量，并且减少轻微偏移的影响 滤色器的光谱透射率特性对颜色分离后的光的光谱分布施加。 在具有光源和四种或更多种滤色器的图像显示器中，并且通过四种或更多种滤色器将从光源发射的光分色成四种或更多种颜色，并通过使用颜色再现彩色图像 分离的光，滤色器的光谱透射率特性被设定为使得四种或更多种滤色器的截止波长存在于通过将从...发射的光的光谱发射率特性相乘得到的光谱分布 通过颜色匹配功能的光源比通过将380至780nm的波长区域中的光谱分布的平均值乘以整数而获得的值小。

公开(公告)号：US06268890B1

公开(公告)日：2001-07-31

申请号：US09053931

申请日：1998-04-02

申请人： Isao Kawahara

发明人： Isao Kawahara

IPC分类号： H04N912

CPC分类号： G09G3/2022 ,  G09G3/204 ,  G09G3/288 ,  G09G5/399 ,  G09G2320/0247 ,  G09G2320/0261 ,  G09G2320/0266 ,  G09G2320/0271 ,  G09G2360/126

摘要： An image display apparatus is provided for reducing occurrences of moving image false-edges by preventing profound changes in “on”/“off” subfield distribution, and for displaying a sharp image that does not appear blurred. This is achieved by effectively dividing one TV field and by displaying a gray level of an input image signal using an “on”/“off” subfield combination, out of possible “on”/“off” subfield combinations for displaying the gray level, in which a number of subfields with large luminance weightings that are “on” is minimized.

摘要翻译： 提供一种图像显示装置，用于通过防止“打开”/“关闭”子场分布的深刻变化，以及用于显示不出现模糊的清晰图像来减少运动图像假边缘的出现。 这通过有效地划分一个TV场并且通过在用于显示灰度级的可能的“开”/“关”“子场组合中使用”开“/”关“子场组合来显示输入图像信号的灰度级来实现， 其中具有“开”的大亮度权重的多个子场被最小化。

公开(公告)号：US06771325B1

公开(公告)日：2004-08-03

申请号：US09705467

申请日：2000-11-03

申请人： Duane S. Dewald ,  Steven M. Penn ,  Michael T. Davis

发明人： Duane S. Dewald ,  Steven M. Penn ,  Michael T. Davis

IPC分类号： H04N912

CPC分类号： H04N9/3117 ,  G03B21/14 ,  G03B21/2066 ,  G03B21/208 ,  H04N9/315 ,  H04N9/3152

摘要： A sequential color display system using a white light source (202) to create a full color image projected onto an image plane (214). A dynamic filter (206), typically a series of moving dichroic filters, generates a series of primary colored light beams that are swept across the surface of a spatial light modulator (210). Light rejected by the dynamic filter (206) enters a light recycler (204) and is reapplied to the dynamic filter (206). The light recycler is typically one or more reflective surfaces, including mirrors, baffles, enclosures, lamp reflectors, TIR surfaces, or specially coated material arranged in such a way as to encourage light toward an aperture separating the light recycler (204) and the dynamic filter (206). Typically all three primary colors are produced simultaneously by the dynamic filter (206). The illuminated portion of the dynamic filter (206) is imaged onto the modulator (210) and a controller (216) provides appropriate image data for each portion of the modulator (210) in synchronization with the sweep of the primary color bands across the modulator surface. The primary color bands are modulated by the spatial light modulator (210) and the modulated light is focused by lens (212) onto the image plane (214). The viewer integrates the light arriving at each portion of the image plane (214) over a frame period to provide the perception of a full-color image.

摘要翻译： 一种使用白光源（202）创建投影到图像平面（214）上的全色图像的顺序彩色显示系统。 动态滤波器（206）通常是一系列运动的二向色滤波器，产生扫过横跨空间光调制器（210）的表面的一系列原色光束。 由动态滤波器（206）拒绝的光进入光回收器（204），并被重新应用于动态滤波器（206）。 光回收器通常是一个或多个反射表面，包括反射镜，挡板，外壳，灯反射器，TIR表面或特别涂覆的材料，其被布置成促使光朝着将光回收器（204）和动态 过滤器（206）。 典型地，所有三原色都是由动态滤波器（206）同时产生的。 动态滤波器（206）的照明部分被成像到调制器（210）上，并且控制器（216）与调制器（210）的每个部分的扫描同步地跨越调制器 表面。 主色带由空间光调制器（210）调制，并且调制的光被透镜（212）聚焦到图像平面（214）上。 观看者将在帧周期中到达图像平面（214）的每个部分的光集成，以提供全色图像的感知。

公开(公告)号：US06621529B2

公开(公告)日：2003-09-16

申请号：US09745906

申请日：2000-12-21

申请人： Kazuhiro Ohara ,  Adam J. Kunzman

发明人： Kazuhiro Ohara ,  Adam J. Kunzman

IPC分类号： H04N912

CPC分类号： H04N9/3114

摘要： A display system 100 in which light from source (102) is focused onto a spinning color wheel (104). The spinning color wheel (104) creates of beam of light that changes from one primary color to the next in rapid sequence. The primary colored beam of light impinges a spatial light modulator (106), in this case a DMD. A controller (108) receives an input video signal and sends image data to the spatial light modulator (106) in synchronization with the color wheel (104)—image data representing the red portions of the image is sent during the period in which the red color filter is passing through the beam of light. The modulated red beam of light is focused onto an image plane (110) by projection lens (112) to form a red image. The process repeats as the green and blue filters pass through the path of the light beam. The eye of the viewer integrates the three primary color images giving the perception of a single full-color image. The display system uses a single nominal color wheel speed to display input signals having various frame rates. The nominal color wheel speed is selected to allow the same color wheel rate to be used for a variety of input frame rates. The color wheel speed is selected to provide a sub-frame rate that is an integer multiple the frame rate of each potential input format.

公开(公告)号：US06597409B1

公开(公告)日：2003-07-22

申请号：US09494509

申请日：2000-01-31

申请人： Yukinori Shioya ,  Masao Imai

发明人： Yukinori Shioya ,  Masao Imai

IPC分类号： H04N912

CPC分类号： H04N9/3114

摘要： A video projector which can obtain high brightness of a projected image, high color purity and low color shading and which can be downsized and reduce the manufacturing cost is provided. The video projector has: an optical source 1; a color selection scanning device 21 for selectively filter a color of a light from the optical source 1 to generate a light flux having a specific color in synchronism with a supplied video signal; a video displaying device 4 for modulating an intensity of the light flux in synchronism with the video signal pixel by pixel to form a modulated image responsive to the video image; an imaging lens 72 disposed between the color selection scanning device 21 and the video displaying device 4, for imaging an intensity distribution and a color distribution of the light flux outgoing from the color selection scanning device 21 on a surface of the video displaying device 4; and a projecting lens 5 for projecting the modulated image formed by the video displaying device 4.

摘要翻译： 提供一种可以获得投影图像的高亮度，高纯度和低色调的视频投影仪，并且可以减小尺寸并降低制造成本。 视频投影机具有：光源1; 一个选色扫描装置21，用于选择性地过滤来自光源1的光的颜色，以产生与所提供的视频信号同步的具有特定颜色的光束; 视频显示装置4，用于逐像素地调制与视频信号同步的光束强度，以形成响应于视频图像的调制图像; 配置在选色扫描装置21和影像显示装置4之间的成像透镜72，用于对从彩色选择扫描装置21输出的光束的强度分布和颜色分布进行成像，使其在视频显示装置4的表面上; 以及用于投影由视频显示装置4形成的调制图像的投影透镜5。

公开(公告)号：US06417892B1

公开(公告)日：2002-07-09

申请号：US09362497

申请日：1999-07-30

申请人： Gary D. Sharp ,  Kristina M. Johnson

发明人： Gary D. Sharp ,  Kristina M. Johnson

IPC分类号： H04N912

CPC分类号： H04N9/3126 ,  G02B27/288 ,  G02F1/0136 ,  G02F1/0322 ,  G02F1/09 ,  G02F1/133533 ,  G02F1/133536 ,  G02F1/13363 ,  G02F1/13473 ,  G02F1/23 ,  G02F2001/133543 ,  G02F2001/133638 ,  G02F2413/04 ,  G02F2413/08 ,  H04N5/66 ,  H04N5/7441 ,  H04N9/3111 ,  H04N9/3167

摘要： The present invention provides a high brightness color selective light modulator (CSLM) formed by a polarization modulator positioned between two retarder stacks. The modulator changes the apparent orientation of one retarder stack relative to the other so that, in a first switching state of the modulator the two retarder stacks cooperate in filtering the spectrum of input light, and in a second switching state the two retarder stacks complement each other, yielding a neutral transmission spectrum. Two or more CSLM stages can be used in series, each stage providing independent control of a primary color. One preferred embodiment eliminates internal polarizers between CSLM stages, thereby providing an additive common-path full-color display with only two neutral polarizers. Hybrid filters can be made using the CSLMs of this invention, in combination with other active or passive filters. The CSLMs of this invention can be used in many applications, particularly in the areas of recording and displaying color images. They can be arranged in a multi pixel array by pixelating the active elements, and can be implemented as color filter arrays, using patterned passive retarders rather than active polarization modulators.

摘要翻译： 本发明提供一种通过位于两个延迟器叠层之间的偏振调制器形成的高亮度颜色选择光调制器（CSLM）。 调制器改变一个延迟器堆叠相对于另一个延迟器堆叠的表面取向，使得在调制器的第一开关状态下，两个延迟器堆叠协调输入光的滤波，并且在第二开关状态下，两个延迟器堆叠互补 另外，产生中性透射光谱。 可以串联使用两个或更多个CSLM级，每个阶段提供对原色的独立控制。 一个优选实施例消除CSLM级之间的内部偏振器，从而提供仅具有两个中性偏振器的附加公共路径全色显示器。 可以使用本发明的CSLM与其它有源或无源滤波器组合来制作混合滤波器。 本发明的CSLM可用于许多应用中，特别是在记录和显示彩色图像的领域中。 它们可以通过对有源元件进行像素化而被布置在多像素阵列中，并且可以使用图案化的无源延迟器而不是主动偏振调制器来实现为滤色器阵列。

公开(公告)号：US06285415B1

公开(公告)日：2001-09-04

申请号：US09177014

申请日：1998-10-22

申请人： Matthew Scott Brennesholtz

发明人： Matthew Scott Brennesholtz

IPC分类号： H04N912

CPC分类号： H04N9/3114 ,  H04N9/3117

摘要： In a single panel scrolling raster projection system of the type having a single light source, a single light valve panel, a rotatable element having surface segments for separating the white light into color bands, and field-sequential, line-at-a-time addressing means, one or more of the color bands is sized to have a height in the scrolling direction greater than the height of the panel in the scrolling direction, and sizing the remaining bands to have a scrolling height substantially equal to that of the panel. Color correction is achieved by changing the power of the light source to increase or decrease its illumination during the period in which the panel is substantially entirely illuminated by a color band having a scrolling height greater than that of the panel, and/or by adjusting the scrolling heights of the color bands relative to one another.

摘要翻译： 在具有单个光源的单面板滚动光栅投影系统中，单个光阀面板，具有用于将白光分离成彩色带的表面段的可旋转元件，以及场顺序，一次一行 寻址装置中，一个或多个颜色带的尺寸被设定为具有在滚动方向上的高度大于面板在滚动方向上的高度，以及确定剩余的带，使其具有基本上等于面板的滚动高度。 通过改变光源的功率来增加或减少其照明，在面板基本上被具有大于面板的滚动高度的色带完全照亮的时段内和/或通过调整 色带相对于彼此的滚动高度。

公开(公告)号：US06256073B1

公开(公告)日：2001-07-03

申请号：US09197923

申请日：1998-11-23

申请人： Gregory S. Pettitt

发明人： Gregory S. Pettitt

IPC分类号： H04N912

CPC分类号： H04N9/3114

摘要： A method of selecting a set of color sources for an image display system, the image display system creating a color image from at least three single-color color sources. According to one embodiment of the present invention, the method comprises selecting a first, second, and third color source. The first and second color sources are divided into a high-efficiency group and a low-efficiency group based on the efficiency of the color source. If the first color source is selected from the high-efficiency group (1102), the second color source may be selected from either the high-efficiency group or the low-efficiency group (1104). If the first color source is selected from the low efficiency group (1102), the second color source is selected from the high-efficiency group (1106). According to one embodiment of the present invention, the third color source is selected (1108) without first sorting the third color sources into high and low-efficiency groups.

摘要翻译： 一种选择用于图像显示系统的一组颜色源的方法，所述图像显示系统从至少三个单色颜色源创建彩色图像。 根据本发明的一个实施例，该方法包括选择第一，第二和第三颜色源。 基于颜色源的效率，将第一和第二颜色源分为高效率组和低效组。 如果从高效率组（1102）中选择第一颜色源，则可以从高效率组或低效组（1104）中选择第二颜色源。 如果从低效率组（1102）中选择第一颜色源，则从高效组（1106）中选择第二颜色源。 根据本发明的一个实施例，选择第三颜色源（1108），而不先将第三色源分类成高效率和低效率的组。

公开(公告)号：US06738105B1

公开(公告)日：2004-05-18

申请号：US09706494

申请日：2000-11-02

申请人： Eric C. Hannah ,  Michael O'Connor

发明人： Eric C. Hannah ,  Michael O'Connor

IPC分类号： H04N912

CPC分类号： H04N9/3129 ,  H04N5/7416

摘要： A display device or a receiver device for use with coherent light. A controller applies phase shift values to a multi-region phase array at a frequency sufficiently higher than the flicker fusion rate of the human eye or other intended receiver in order to remove the perception of speckling artifacts which would otherwise appear due to the coherency of the light.

摘要翻译： 用于相干光的显示装置或接收装置。 控制器以足够高于人眼或其他预期接收机的闪烁融合速率的频率将相移值应用于多区域相位阵列，以便消除由于相机的相干性而出现的斑点伪影的感知 光。

公开(公告)号：US06570623B1

公开(公告)日：2003-05-27

申请号：US09556669

申请日：2000-04-24

申请人： Kai Li ,  YuQun Chen ,  Timothy Housel

发明人： Kai Li ,  YuQun Chen ,  Timothy Housel

IPC分类号： H04N912

CPC分类号： H04N9/12 ,  H04N5/7425 ,  H04N5/7458 ,  H04N9/3147 ,  H04N9/3194

摘要： A multi-projector video wall system employs a blending frame to blend the overlapping portions of two adjacent images I1 and I2. The blending frame is preferably located a distance Dframe from the aperture of the projector and has an optimal half frame width Wf from the axis of the lens of the projector. A camera-based feedback loop can be employed to fine-tune the optical blending by digitally altering the image source.

摘要翻译： 多投影机视频墙系统采用混合帧来混合两个相邻图像I1和I2的重叠部分。 混合框架优选地距离投影仪的孔径距离Dframe，并且具有距离投影仪的透镜的轴线的最佳半幅宽度Wf。 可以采用基于相机的反馈环来通过数字改变图像源来微调光学混合。