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    • 2. 发明授权
    • Full color display with gradient index lens array disposed between
phosphor emitters and liquid crystal display
    • 具有设置在荧光体发射体和液晶显示器之间的梯度折射率透镜阵列的全色显示
    • US5504597A
    • 1996-04-02
    • US461221
    • 1995-06-05
    • Robert A. SpragueRichard H. BruceLouis D. Silverstein
    • Robert A. SpragueRichard H. BruceLouis D. Silverstein
    • G02B3/00G02F1/1335G02F1/13357G09G3/18H04N9/30
    • G02B3/0056G02F1/133526G02F1/133617G02B3/0031G02B3/0062G02B3/0087
    • A full color display is disclosed having a high efficiency light source optically coupled by a light coupling lens array to the active matrix of pixel elements of an image forming means such as a transmissive liquid crystal light valve. The light source is comprised of a patterned matrix of individual, primary colored visible radiation emitters, such as individual phosphor elements, arranged in a manner suitable for the human eye to integrate the individual primary colored lights into a single mixture color. The light coupling lens array collects substantially all of the light rays emitted from each primary colored light emitter and focuses them on a respective one of the transparent electrodes in the active matrix, as a real image smaller than the size of the electrode. A suitable light coupling lens array is a gradient index lens array, a multiple layer, two dimensional array of microlenses functionally analogous to an array of strip lenses, or a microlens array. A twisted nematic liquid crystal cell may be used in the image forming means to achieve a high contrast display. Use of the light coupling lens array to collect and focus the light rays from the light source permits the focused light to pass through an entrance polarizer with minimal scattering or divergence, and then through the respective transparent electrode in the active matrix unobscured by the opaque pixel interconnect elements. More efficient use of a larger percentage of the light from the light source in this manner results in the formation of a bright, high contrast, full color image.
    • 公开了一种全色显示器,其具有通过光耦合透镜阵列光耦合到诸如透射型液晶光阀的图像形成装置的像素元件的有源矩阵的高效光源。 光源包括单独的初级着色可见辐射发射器(例如单独的磷光体元件)的图案化矩阵,其以适于人眼的方式布置,以将单独的主要着色光整合为单一混合颜色。 光耦合透镜阵列基本上收集从每个主要着色光发射器发射的所有光线,并将其聚焦在有源矩阵中的相应一个透明电极上,作为小于电极尺寸的实像。 合适的光耦合透镜阵列是梯度折射率透镜阵列,多层,微透镜的二维阵列,功能上类似于带状透镜阵列,或微透镜阵列。 可以在图像形成装置中使用扭转向列型液晶单元,以实现高对比度显示。 使用光耦合透镜阵列来收集和聚焦来自光源的光线允许聚焦光以最小的散射或发散方式通过入射偏振器,然后通过由不透明像素遮挡的有源矩阵中的相应透明电极 互连元件。 以这种方式更有效地利用来自光源的更大百分比的光导致形成明亮的高对比度全色图像。
    • 3. 发明授权
    • Full color display with plural two-dimensional planar arrays of lenslets
    • 全彩显示,具有多个二维平面阵列的小透镜
    • US5550656A
    • 1996-08-27
    • US450964
    • 1995-05-25
    • Robert A. SpragueRIchard H. BruceLouis D. Silverstein
    • Robert A. SpragueRIchard H. BruceLouis D. Silverstein
    • G02B3/00G02F1/1335G02F1/13357G09G3/18H04N9/30
    • G02B3/0056G02F1/133526G02F1/133617G02B3/0031G02B3/0062G02B3/0087
    • A full color display is disclosed having a high efficiency light source optically coupled by a light coupling lens array to the active matrix of pixel elements of an image forming means such as a transmissive liquid crystal light valve. The light source is comprised of a patterned matrix of individual, primary colored visible radiation emitters, such as individual phosphor elements, arranged in a manner suitable for the human eye to integrate the individual primary colored lights into a single mixture color. The light coupling lens array collects substantially all of the light rays emitted from each primary colored light emitter and focuses them on a respective one of the transparent electrodes in the active matrix, as a real image smaller than the size of the electrode. A suitable light coupling lens array is a gradient index lens array, a multiple layer, two dimensional array of microlenses functionally analogous to an array of strip lenses, or a microlens array. A twisted nematic liquid crystal cell may be used in the image forming means to achieve a high contrast display. Use of the light coupling lens array to collect and focus the light rays from the light source permits the focused light to pass through an entrance polarizer with minimal scattering or divergence, and then through the respective transparent electrode in the active matrix unobscured by the opaque pixel interconnect elements. More efficient use of a larger percentage of the light from the light source in this manner results in the formation of a bright, high contrast, full color image.
    • 公开了一种全色显示器,其具有通过光耦合透镜阵列光耦合到诸如透射型液晶光阀的图像形成装置的像素元件的有源矩阵的高效光源。 光源包括单独的初级着色可见辐射发射器(例如单独的磷光体元件)的图案化矩阵,其以适于人眼的方式布置,以将单独的主要着色光整合为单一混合颜色。 光耦合透镜阵列基本上收集从每个主要着色光发射器发射的所有光线,并将其聚焦在有源矩阵中的相应一个透明电极上,作为小于电极尺寸的实像。 合适的光耦合透镜阵列是梯度折射率透镜阵列,多层,微透镜的二维阵列,功能上类似于带状透镜阵列,或微透镜阵列。 可以在图像形成装置中使用扭转向列型液晶单元,以实现高对比度显示。 使用光耦合透镜阵列来收集和聚焦来自光源的光线允许聚焦光以最小的散射或发散方式通过入射偏振器,然后通过由不透明像素遮挡的有源矩阵中的相应透明电极 互连元件。 以这种方式更有效地利用来自光源的更大百分比的光导致形成明亮的高对比度全色图像。
    • 4. 发明授权
    • Two path liquid crystal light valve color display with light coupling
lens array disposed along the red-green light path
    • 双路液晶光阀彩色显示屏,配有沿红绿光路的光耦合透镜阵列
    • US5315418A
    • 1994-05-24
    • US900812
    • 1992-06-17
    • Robert A. SpragueLouis D. SilversteinRichard H. D. Bruce
    • Robert A. SpragueLouis D. SilversteinRichard H. D. Bruce
    • G02F1/1335G02B3/00G02F1/13357G02F1/1347G09G3/18H04N9/30H04N9/31
    • G02B3/0056G02F1/13473H04N9/3105G02B13/22G02B3/0087G02F1/133533
    • A full color, liquid crystal display device is disclosed having two optical paths, the first for long (red) and medium (green) wavelength regions of the visible light spectrum, and the second for the short (blue) wavelength region of the visible light spectrum. The two optical paths and their properties are nominally matched to the characteristics of the chromatic and luminance processing channels of the human visual system. The two-path device generates two separate, spatially coherent color images using two liquid crystal light valve image forming sources, without the use of color filters typically found in full color displays. The two images are combined by additive spatial superposition to produce a single, full-spectrum, composite color image. In one embodiment, individual red and green light components from an efficient, patterned backlight of individual red and green light emitters are coupled by a light coupling lens array to respective display pixels in the liquid crystal light valve. In another embodiment, red and green light components form a red and green image by passing through two aligned liquid crystal light valves and two color selecting polarizers. A light coupling lens array couples the light from one liquid crystal light valve to the other. Suitable light coupling lens arrays in both embodiments include a SELFOC lens array, a strip lens array, or a microlens array. The composite image may be either directly viewed or optically projected using a conventional projection lens assembly onto an intermediate viewing surface.
    • 公开了一种全色液晶显示装置,其具有两个光路,第一长可见光谱的长(红)和中(绿)波长区域,第二可见光的短(蓝)波长区域 光谱。 两个光路及其性质名义上与人类视觉系统的色彩和亮度处理通道的特性相匹配。 双路设备使用两个液晶光阀图像形成源产生两个单独的空间相干彩色图像,而不使用通常在全色显示器中发现的滤色器。 两个图像通过加性空间叠加组合以产生单个全谱,复合彩色图像。 在一个实施例中,来自各个红色和绿色光发射器的有效的图案化背光的单独的红色和绿色光分量通过光耦合透镜阵列耦合到液晶光阀中的相应显示像素。 在另一个实施例中,红色和绿色光分量通过两个对准的液晶光阀和两个选色偏光器形成红色和绿色图像。 光耦合透镜阵列将来自一个液晶光阀的光耦合到另一个。 两个实施例中合适的光耦合透镜阵列包括SELFOC透镜阵列,条形透镜阵列或微透镜阵列。 合成图像可以使用常规投影透镜组件直接观看或光学投影到中间观察表面上。
    • 5. 发明授权
    • Large screen full color display with plural adjacent display panels and
enlarging graded index lens array
    • 大屏幕全彩显示屏,多个相邻的显示面板和放大的渐变折射率透镜阵列
    • US5504598A
    • 1996-04-02
    • US450071
    • 1995-05-25
    • Robert A. SpragueRichard H. BruceLouis D. Silverstein
    • Robert A. SpragueRichard H. BruceLouis D. Silverstein
    • G02B3/00G02F1/1335G02F1/13357G09G3/18H04N9/30
    • G02B3/0056G02F1/133526G02F1/133617G02B3/0031G02B3/0062G02B3/0087
    • A full color display is disclosed having a high efficiency light source optically coupled by a light coupling lens array to the active matrix of pixel elements of an image forming means such as a transmissive liquid crystal light valve. The light source is comprised of a patterned matrix of individual, primary colored visible radiation emitters, such as individual phosphor elements, arranged in a manner suitable for the human eye to integrate the individual primary colored lights into a single mixture color. The light coupling lens array collects substantially all of the light rays emitted from each primary colored light emitter and focuses them on a respective one of the transparent electrodes in the active matrix, as a real image smaller than the size of the electrode. A suitable light coupling lens array is a gradient index lens array, a multiple layer, two dimensional array of microlenses functionally analogous to an array of strip lenses, or a microlens array. A twisted nematic liquid crystal cell may be used in the image forming means to achieve a high contrast display. Use of the light coupling lens array to collect and focus the light rays from the light source permits the focused light to pass through an entrance polarizer with minimal scattering or divergence, and then through the respective transparent electrode in the active matrix unobscured by the opaque pixel interconnect elements. More efficient use of a larger percentage of the light from the light source in this manner results in the formation of a bright, high contrast, full color image.
    • 公开了一种全色显示器,其具有通过光耦合透镜阵列光耦合到诸如透射型液晶光阀的图像形成装置的像素元件的有源矩阵的高效光源。 光源包括单独的初级着色可见辐射发射器(例如单独的磷光体元件)的图案化矩阵,其以适于人眼的方式布置,以将单独的主要着色光整合为单一混合颜色。 光耦合透镜阵列基本上收集从每个主要着色光发射器发射的所有光线,并将其聚焦在有源矩阵中的相应一个透明电极上,作为小于电极尺寸的实像。 合适的光耦合透镜阵列是梯度折射率透镜阵列,多层,微透镜的二维阵列,功能上类似于带状透镜阵列,或微透镜阵列。 可以在图像形成装置中使用扭转向列型液晶单元,以实现高对比度显示。 使用光耦合透镜阵列来收集和聚焦来自光源的光线允许聚焦光以最小的散射或发散方式通过入射偏振器,然后通过由不透明像素遮挡的有源矩阵中的相应透明电极 互连元件。 以这种方式更有效地利用来自光源的更大百分比的光导致形成明亮的高对比度全色图像。