公开(公告)号：WO1994027184A1

公开(公告)日：1994-11-24

申请号：PCT/US1994004048

申请日：1994-04-14

Applicant: PROXIMA CORPORATION

Inventor： PROXIMA CORPORATION ,  SHAPIRO, Leonid ,  KAPPEL, David, W.

IPC: G03B21/28

CPC classification number: H04N9/3141 ,  G03B21/28 ,  G09G2340/04 ,  G09G2340/0414 ,  G09G2340/0421 ,  G09G2340/0471 ,  G09G2340/0478 ,  G09G2340/0485 ,  H04N5/7441

Abstract: A low profile liquid crystal projector unit (10) and a method of using it to project an image with substantially no keystoning effects. An optics arrangement directs high intensity light within a housing along a path through a liquid crystal display panel (12) at an angle offset from a normal axis of the panel. The liquid crystal panel is inclined within the housing and an output mirror (24) mounted above the housing is inclined angularly opposite to the liquid crystal panel and cooperates with a lens set (71-75) for projecting the image onto a remote surface (60). The output mirror is mounted to reflect the image at an angle to the normal of the remote surface substantially equal to the angle the light path is offset from the normal of the panel.

Abstract translation: 一种低调液晶投影机单元（10）以及使用它来投影基本没有梯形失真效果的图像的方法。 光学装置沿着沿与面板的法线轴线偏离的角度沿着穿过液晶显示面板（12）的路径引导壳体内的高强度光。 液晶面板在壳体内倾斜，并且安装在壳体上方的输出镜（24）与液晶面板成角度地倾斜地配合，并与透镜组（71-75）配合，用于将图像投影到远程表面（60 ）。 输出反射镜被安装成以远离表面法线的角度反射图像，基本上等于光路从面板的法线偏移的角度。

公开(公告)号：WO1992016929A1

公开(公告)日：1992-10-01

申请号：PCT/US1992001725

申请日：1992-03-05

Applicant: PROXIMA CORPORATION

Inventor： PROXIMA CORPORATION ,  BOHANNON, William, K. ,  SHAPIRO, Leonid

IPC: G09G03/36

CPC classification number: G09G3/36 ,  G09G3/001 ,  G09G3/3607 ,  G09G2300/023

Abstract: A plurality of variable biasing devices (13, 15, 17) for controlling the deselect modes of operation of each stage (22, 24, 26) of the liquid crystal display panel assembly (11) to optimize substantially the contrast between each individual deselect state and corresponding select states. The devices include an isolation device (68) to enable the contrast between the select and deselect modes to be made, independently of the intensity adjustments for the select modes of operation.

Abstract translation: 多个可变偏置装置（13,15,17），用于控制液晶显示面板组件（11）的每个级（22,24,26）的取消选择操作模式，以实质上优化每个单独取消选择状态之间的对比度 和相应的选择状态。 这些装置包括隔离装置（68），以使得能够进行选择和取消选择模式之间的对比度，而与选择操作模式的强度调整无关。

公开(公告)号：WO1992005537A1

公开(公告)日：1992-04-02

申请号：PCT/US1991006761

申请日：1991-09-18

Applicant: PROXIMA CORPORATION

Inventor： PROXIMA CORPORATION ,  SHAPIRO, Leonid ,  SHAW, Robert ,  FARWELL, Randall, S. ,  HAUCK, Lane, T.

IPC: G09G05/04

CPC classification number: G09G5/02 ,  G09G2300/023 ,  G09G2320/0247 ,  G09G2320/0276

Abstract: A high speed color display system (10) including a modulation circuit (11) electrically coupled between a high speed display device (16), such as an active matrix liquid crystal display panel, and a video output signal source (26, 14A) such as a video output card of a personal computer. The modulation circuit (11) including both a scaling circuit (35A) for eliminating or substantially reducing contouring caused by quantizing errors associated with approximations of digital pictures and a duty cycle scaling circuit (42A) for eliminating or substantially reducing repetitive beats in a displayed image. The display panel (16) is adapted for positioning on a conventional photographic projector for displaying large video images. Such a system (10) is modular and employs relatively inexpensive subassembly units such as a user selected television signal generating type device, such as a video cassette recorder (20), and a high speed display device, such as an active matrix display panel (16) adapted for positioning on a projector.

Abstract translation: 一种高速彩色显示系统（10），包括电耦合在诸如有源矩阵液晶显示面板的高速显示装置（16）和视频输出信号源（26,14A）之间的调制电路（11） 作为个人计算机的视频输出卡。 调制电路（11）包括用于消除或基本上减少由与数字图像的近似相关联的量化误差引起的轮廓线的缩放电路（35A）和用于消除或基本上减少显示图像中的重复节拍的占空比缩放电路（42A） 。 显示面板（16）适于定位在用于显示大视频图像的传统照相投影仪上。 这种系统（10）是模块化的并且采用相对便宜的子组件单元，例如诸如盒式录像机（20）的用户选择的电视信号产生型设备，以及诸如有源矩阵显示面板 16）适于在投影仪上定位。

公开(公告)号：WO1991011795A1

公开(公告)日：1991-08-08

申请号：PCT/US1991000493

申请日：1991-01-23

Applicant: PROXIMA CORPORATION

Inventor： PROXIMA CORPORATION ,  SHAPIRO, Leonid ,  HAUCK, Lane, T. ,  FARWELL, Randall, S. ,  SHAW, Robert, W.

IPC: G09G03/00

CPC classification number: G09G3/36 ,  G09G3/3607 ,  G09G2300/023 ,  G09G2320/0247 ,  G09G2320/0276 ,  H04N2005/745

Abstract: The display system (10) includes a liquid crystal display panel unit (12) having three different color components for each pixel of the resulting display. Each one of the individual color components of a pixel of the liquid crystal display panel unit (12) is activated selectively by a corresponding one of a set of video processing units (20, 21, 22). Each video processing unit (20, 21, 22) is responsive to a video signal from a conventional computer processor (11) for causing the reproduction of a component of a colored image. Each video processing unit (20, 21, 22) includes a translating arrangement (23, 24, 25) for converting a component part of the computer generated video signal into a binary digital signal indicative of a single one of the color components for mixing with other color components to reproduce faithfully the computer generated color image.

Abstract translation: 显示系统（10）包括对于所得显示器的每个像素具有三种不同颜色分量的液晶显示面板单元（12）。 液晶显示面板单元（12）的像素的各个颜色分量中的每一个被选择性地由一组视频处理单元（20,21,22）中的对应的一个激活。 每个视频处理单元（20,21,22）响应于来自常规计算机处理器（11）的视频信号，用于引起彩色图像的分量的再现。 每个视频处理单元（20,21,22）包括一个转换装置（23,24,25），用于将计算机产生的视频信号的分量部分转换为二进制数字信号，该二进制数字信号指示用于混合的单个颜色分量 其他颜色成分忠实地重现计算机生成的彩色图像。

公开(公告)号：WO1996003676A1

公开(公告)日：1996-02-08

申请号：PCT/US1995009631

申请日：1995-07-25

Applicant: PROXIMA CORPORATION

Inventor： PROXIMA CORPORATION ,  MINICH, Arthur, P. ,  KAPPEL, David, W. ,  HARGIS, David, E. ,  ASSA, Shlomo ,  SHAPIRO, Leonid

IPC: G03B21/28

CPC classification number: H04N9/3129 ,  G02B19/0028 ,  G02B19/0057 ,  G02B19/009 ,  G02B23/06 ,  G02B27/0927 ,  G02B27/0944 ,  G02B27/0961 ,  G02B27/1033 ,  G02B27/1053 ,  G02B27/1086 ,  G02B27/123 ,  G02B27/149 ,  G03B21/008 ,  G03B21/2033 ,  G03B33/06 ,  H04N9/3161

Abstract: An image projection system includes a source of polarized light and a spatial light modulator, having an alignment layer, wherein the polarized light is aligned with the alignment layer to allow the light to pass without the need for polarizers. Three different colored images may be produced by three separate polarized light sources (222A, 226A, 230A) with corresponding light valve super-imposed. Light sources may either be maintained activated or may be sequenced at high input energies for short intervals to reduce average energy costs. A microlaser array (922) may be coupled with a beam shaper (936) to further increase brightness of the image. The beam shaper may include a binary phase plate to modify the shape and intensity profile of the projection light beam.

Abstract translation: 图像投影系统包括偏振光源和具有取向层的空间光调制器，其中偏振光与取向层对齐，以允许光通过而不需要偏振器。 三个不同的彩色图像可以通过三个分离的偏振光源（222A，226A，230A）产生，其中对应的光阀被强加。 光源可以被维持激活，或者可以在高输入能量下以短间隔排序，以降低平均能量成本。 微型激光器阵列（922）可以与光束整形器（936）耦合以进一步增加图像的亮度。 光束整形器可以包括用于修改投影光束的形状和强度分布的二元相位板。

公开(公告)号：WO1992009062A1

公开(公告)日：1992-05-29

申请号：PCT/US1991002656

申请日：1991-04-18

Applicant: PROXIMA CORPORATION

Inventor： PROXIMA CORPORATION ,  MARSHALL, Roger, N. ,  HAUCK, Lane, T. ,  SHAPIRO, Leonid ,  BUSCH, Jeffrey, W. ,  STEVENS, Eric, S.

IPC: G09G03/02

CPC classification number: G06F3/0386 ,  G06F3/0488

Abstract: A method and apparatus facilitates the alignment and light sensitivity adjustment of an optical computer input system (10), which includes a user (20) generated light (24) directed onto a screen (18) bearing a computer generated image, to convey information to the computer interactively by the user (20), even in a darkened room. The system (10) discriminates between the user (20) generated image, and the computer generated image. Devices facilitate the proper alignment of the system with the screen (18), as well as proper light sensitivity adjustments.

Abstract translation: 一种方法和装置有助于光学计算机输入系统（10）的对准和光敏度调节，该光学计算机输入系统（10）包括用户（20）产生的光（24），所述光（24）指向带有计算机生成的图像的屏幕（18），以将信息传送到 用户（20）交互地进行计算机，甚至在黑暗的房间中。 系统（10）区分用户（20）生成的图像和计算机生成的图像。 设备便于系统与屏幕（18）的正确对准，以及适当的光敏度调节。

公开(公告)号：WO1992000544A1

公开(公告)日：1992-01-09

申请号：PCT/US1991004717

申请日：1991-06-28

Applicant: PROXIMA CORPORATION

Inventor： PROXIMA CORPORATION ,  BOHANNON, William, K. ,  SHAPIRO, Leonid

IPC: G02F01/13

CPC classification number: H04N9/3167 ,  G02F1/133533 ,  G02F1/13473 ,  G02F1/1397 ,  G02F2001/133531 ,  G09G2300/023 ,  G09G2320/0247 ,  G09G2320/0276 ,  H04N2005/745

Abstract: A stacked display panel construction (10) produces multishades of a single color, or a plurality of multiple colors (400, 500, 600). The system includes a nematic display panel (24) which, in one of its states, functions as a waveguide to rotate linearly polarized light from a colored polarizer (23), to produce noncolored light (NC1) from an output polarizer (25). In its other state, the display panel (24) twists the linearly polarized light to emit therefrom predominantly linearly polarized light for enabling the output polarizer (25) to emit colored light (R2). The method of making the construction includes adjusting the angle of rotation in the waveguide state of the panel (24), until only noncolored light (NC1) is emitted from the output polarizer (25). A display panel construction (800) includes three substantially identical nematic liquid crystal panels (824, 826, 828), associated electronic drive units (844, 845, 846) and associated polarizers (823, 825, 827, 829) for producing multiple colors.

Abstract translation: 堆叠的显示面板结构（10）产生单色或多种多种颜色（400,500,600）的多色。 该系统包括向列显示面板（24），其在其状态之一中用作波导以旋转来自着色偏振器（23）的线性偏振光，以从输出偏振器（25）产生未着色光（NC1）。 在其他状态下，显示面板（24）使线性偏振光扭曲，从而主要以直线偏振光发射，使得输出偏振器（25）能够发出彩色光（R2）。 制造该构造的方法包括调整面板（24）的波导状态中的旋转角度，直到仅从输出偏振器（25）发射未着色的光（NC1）。 显示面板结构（800）包括三个基本上相同的向列液晶面板（824,826,828），相关联的电子驱动单元（844,845,846）和相关联的偏振器（823,825,827,829），用于产生多种颜色 。

公开(公告)号：WO1996017271A1

公开(公告)日：1996-06-06

申请号：PCT/US1995015001

申请日：1995-11-28

Applicant: PROXIMA CORPORATION

Inventor： PROXIMA CORPORATION ,  SHAPIRO, Leonid

IPC: G02F01/1335

CPC classification number: G02F1/133526 ,  G02F1/133514 ,  G02F2001/133521 ,  G02F2001/133565

Abstract: A liquid crystal projection panel construction and a method of making it include securing an interference color filter member (58, 60, 62) and a lenticular lenslet array plate (90) to a high resolution display panel to produce a bright, full color high resolution image.

Abstract translation: 液晶投影面板结构及其制造方法包括将干涉滤色器构件（58,60,62）和双凸透镜小透镜阵列板（90）固定到高分辨率显示面板上以产生明亮的全色高分辨率 图片。

公开(公告)号：WO1993015496A1

公开(公告)日：1993-08-05

申请号：PCT/US1993000874

申请日：1993-02-02

Applicant: PROXIMA CORPORATION

Inventor： PROXIMA CORPORATION ,  MARSCHALL, Roger ,  BUSCH, Jeffrey, W. ,  SHAPIRO, Leonid ,  LIZON, Richard, M. ,  HAUCK, Lane, T.

IPC: G09G03/02

CPC classification number: G06F3/038 ,  G06F3/0386 ,  G06F3/0418

Abstract: A method and optical system auxiliary input calibration arrangement (10A) accurately and reliably discriminate between a user generated image and a video source generated image, such as one produced by a computer. The calibration arrangement includes amplifier devices (176a) for increasing the strength of a video information signal (178A) indicative of the video generated image, and a user generated auxiliary input signal (179A) indicative of an auxiliary input light image, without increasing spurious ambient light signals. A discrimination circuit (46A) generates a detection signal whenever the amplified information signals are greater than a predetermined reference level signal. The microprocessor (42A) controls the exposure time of the light sensing device and selects an appropriate level of amplification for the output signal from the sensing device to increase light sensitivity between the vieo source generated light images as compared to the user generated auxiliary light images. The optical auxiliary input arrangement (11B) accurately and reliably discriminates between user generated double click information without the need of the user being so steady of hand as to cause the auxiliary light information beam to illuminate the same precise location on the viewing surface during the double click operation.

Abstract translation: 方法和光学系统辅助输入校准装置（10A）准确可靠地区分用户生成的图像和视频源产生的图像，例如由计算机产生的图像。 校准装置包括用于增加指示视频产生的图像的视频信息信号（178A）的强度的放大器装置（176a）和指示辅助输入光图像的用户生成的辅助输入信号（179A），而不增加杂散环境 灯光信号。 只要放大的信息信号大于预定的参考电平信号，鉴别电路（46A）就产生检测信号。 微处理器（42A）控制光感测装置的曝光时间，并且从感测装置中选择合适的放大级别的放大信号，以增加与用户生成的辅助光图像相比，源光源产生的光图像之间的光敏度。 光学辅助输入装置（11B）准确可靠地区分用户产生的双击信息，而不需要用户如此稳定的手，以便在双重状态期间辅助光信息光束在观察表面上照亮相同的精确位置 点击操作。

公开(公告)号：EP0698227A1

公开(公告)日：1996-02-28

申请号：EP94914772.0

申请日：1994-04-14

Applicant: PROXIMA CORPORATION

Inventor： SHAPIRO, Leonid ,  KAPPEL, David, W.

IPC: G02F1 ,  G03B21 ,  H04N5

CPC classification number: H04N9/3141 ,  G03B21/28 ,  G09G2340/04 ,  G09G2340/0414 ,  G09G2340/0421 ,  G09G2340/0471 ,  G09G2340/0478 ,  G09G2340/0485 ,  H04N5/7441

Abstract: A low profile liquid crystal projector unit (10) and a method of using it to project an image with substantially no keystoning effects. An optics arrangement directs high intensity light within a housing along a path through a liquid crystal display panel (12) at an angle offset from a normal axis of the panel. The liquid crystal panel is inclined within the housing and an output mirror (24) mounted above the housing is inclined angularly opposite to the liquid crystal panel and cooperates with a lens set (71-75) for projecting the image onto a remote surface (60). The output mirror is mounted to reflect the image at an angle to the normal of the remote surface substantially equal to the angle the light path is offset from the normal of the panel.

Abstract translation: 低轮廓液晶投影仪单元（10）以及使用该投影仪单元投影图像的方法基本不具有梯形效应。 光学装置沿着通过液晶显示面板（12）的路径以偏离面板的法向轴的角度引导壳体内的高强度光。 液晶面板在壳体内倾斜，并且安装在壳体上方的输出镜（24）与液晶面板成角度地相对倾斜，并且与透镜组（71-75）配合以将图像投影到远程表面（60 ）。 输出反射镜被安装成以与远程表面的法线成一定角度反射图像，该角度基本上等于光路偏离面板的法线的角度。