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    • 5. 发明授权
    • Method and apparatus for integrating microlens array into a liquid
crystal display device using a sacrificial substrate
    • 使用牺牲基板将微透镜阵列集成到液晶显示装置中的方法和装置
    • US5929962A
    • 1999-07-27
    • US17867
    • 1998-02-03
    • George Liang-Tai ChiuFuad Elias DoanyRama Nand Singh
    • George Liang-Tai ChiuFuad Elias DoanyRama Nand Singh
    • G02F1/1335G02F1/13G02F1/1333
    • G02F1/133526
    • A method and apparatus is presented for transmissive liquid crystal display devices with increased apparent aperture ratios. The aperture ratio is increased by focusing light into the transparent area using a microlens array on a per pixel basis. The method includes the steps of forming a top substrate having a sacrificial substrate adhered to a first transmissive substrate, a transmissive electrode layer adhered to the first transmissive substrate in which a plurality of color filters are disposed, the top substrate further having a rubbing layer formed proximate to the transmissive electrode layer. Forming a bottom substrate comprising a second transmissive substrate and a thin film transistor array disposed within the second transmissive substrate. Disposing a sealing material on one of the top or bottom substrates so as to form an outline of display. Aligning and assembling the top and bottom substrates together such that the sealing material is sandwiched between the top and bottom substrates which are maintained at a constant separation of a few microns uniformly across the display with the help of spacer balls or posts and the rubbing layer is proximate to the thin film transistor array. Releasing the sacrificial substrate from the first transmissive substrate and adhering a microlens array to the first transmissive substrate. Lastly, filling the outline of sealing material with liquid crystal material and sealing the liquid crystal material. Also provided is an apparatus for carrying out the method of the present invention.
    • 本发明提供了一种具有增加的视在孔径比的透射型液晶显示装置的方法和装置。 通过在每像素的基础上使用微透镜阵列将光聚焦到透明区域来增加孔径比。 该方法包括以下步骤:形成具有粘附到第一透射基板的牺牲基板的顶部基板,附着到其上设置有多个滤色器的第一透射基板的透射电极层,顶部基板还具有形成的摩擦层 靠近透射电极层。 形成底部衬底,其包括第二透射衬底和设置在第二透射衬底内的薄膜晶体管阵列。 在一个顶部或底部基板上设置密封材料,以形成显示器的轮廓。 将顶部和底部基底对准和组装在一起,使得密封材料夹在顶部和底部基底之间,借助于间隔球或支柱将它们保持在跨越显示器的几微米的恒定分离,并且摩擦层是 靠近薄膜晶体管阵列。 从第一透射衬底上释放牺牲衬底并将微透镜阵列粘附到第一透射衬底上。 最后,用液晶材料填充密封材料的轮廓并密封液晶材料。 还提供了一种用于实施本发明的方法的装置。
    • 6. 发明授权
    • Compact desktop projection display using three mirrors
    • 紧凑型桌面投影显示使用三个镜子
    • US5791754A
    • 1998-08-11
    • US783252
    • 1997-01-14
    • Thomas Mario CipollaFuad Elias DoanyRama Nand Singh
    • Thomas Mario CipollaFuad Elias DoanyRama Nand Singh
    • G03B21/10G03B21/14
    • G03B21/10
    • An apparatus for displaying an image on a screen is disclosed. The display has a projection lens for projecting the image; a first reflective surface for receiving the projected image and reflecting a first reflected image having a first central optical axis; and a second reflective surface for receiving the first reflected image and reflecting a second reflected image having a second central optical axis onto said screen. The first and second reflective surfaces provide a folded projection path, wherein the first and second central optical axes are in the same plane. Alternatively, the first and second central optical axes do not lie in a common plane. This further reduces the size of the displaying apparatus. A third reflective surface is also provided to further reduce the size of the display. The two or three reflective surfaces or mirrors are enclosed in an environmentally sealed compartment. The projection lens has a reduced illumination angle and an increased lens-to-screen distance.
    • 公开了一种用于在屏幕上显示图像的装置。 显示器具有投影图像的投影透镜; 用于接收投影图像并反射具有第一中心光轴的第一反射图像的第一反射表面; 以及第二反射表面,用于接收第一反射图像并将具有第二中心光轴的第二反射图像反射到所述屏幕上。 第一和第二反射表面提供折叠的投影路径,其中第一和第二中心光轴在同一平面内。 或者,第一和第二中心光轴不位于公共平面中。 这进一步减小了显示装置的尺寸。 还提供第三反射表面以进一步减小显示器的尺寸。 两个或三个反射表面或反射镜被封装在环境密封的隔间中。 投影透镜具有降低的照明角度和增加的透镜到屏幕距离。
    • 7. 发明授权
    • Optical system for projection displays using spatial light modulators
    • 用于使用空间光调制器的投影显示的光学系统
    • US06247816B1
    • 2001-06-19
    • US08908395
    • 1997-08-07
    • Thomas Mario CipollaFuad Elias DoanyRobert Lee MelcherRama Nand Singh
    • Thomas Mario CipollaFuad Elias DoanyRobert Lee MelcherRama Nand Singh
    • G03B2114
    • H04N9/3105
    • An optical system for a projection display employing three reflective spatial light modulations (SLM's) is described. Two or the three SLM imaging paths employ typical image combining and projection optical techniques. However, the third SLM imaging path employs a relay lens to produce an intermediate image of the SLM which is subsequently combined with the other two images. Each color component is directed onto one of three SLM's, each through its own polarizing beamsplitter (PBS) cube. In two of the three SLM's, image forming light is reflected from each SLM and passes through its respective PBS, and the two colors are then recombined using a dichroic coating. A lens then images the two-color image, and projects it onto a screens. The third SLM traverses a completely separate path. In this case, the image forming light reflected by the SLM and passing through the PBS is first imaged by a relay lens of approximately unity magnification to produce an intermediate image plane. This intermediate image (of the third colors SLM) is then recombined with the first two color images using PBS or a dichroic coating. The recombination is accomplished in a manner that ensures that the three color images are located at the back focal distance of the projection lens.
    • 描述了采用三个反射空间光调制(SLM)的投影显示器的光学系统。 两个或三个SLM成像路径采用典型的图像组合和投影光学技术。 然而,第三SLM成像路径采用中继透镜来产生随后与其他两个图像组合的SLM的中间图像。 每个颜色分量被引导到三个SLM中的一个,每个通过其自己的偏振分束器(PBS)立方体。 在三个SLM中的两个中,图像形成光从每个SLM反射并通过其各自的PBS,然后使用二向色涂层重新组合两种颜色。 然后,镜头对双色图像进行成像,并将其投影到屏幕上。 第三个SLM遍历完全独立的路径。 在这种情况下,由SLM反射并通过PBS的图像形成光首先通过近似单位倍率的中继透镜成像,以产生中间图像平面。 然后使用PBS或二向色涂层将该中间图像(第三色SLM)与前两个彩色图像重新组合。 以确保三色图像位于投影透镜的后焦距的方式来实现复合。
    • 9. 发明授权
    • Optical system for miniature personal displays using reflective light valves
    • 用于使用反光灯的微型个人显示器的光学系统
    • US06310713B2
    • 2001-10-30
    • US08834570
    • 1997-04-07
    • Fuad Elias DoanyRama Nand Singh
    • Fuad Elias DoanyRama Nand Singh
    • G02B530
    • G02B27/0172G02B5/30
    • An illumination system and display are disclosed that include a light for providing light, a polarizing beam splitter (PBS) having a first surface that receives the light from the backlight. The PBS passes a first polarization of the received light to a curved mirror located at a second PBS face, which second PBS face is opposite the first PBS face. The curvature of the mirror provides the optical power necessary for proper imaging, while limiting the reflecting area of the mirror provides an aperture stop that determines the numerical aperture of the optical system. The display also includes a quarter wave plate and a spatial light modulator (SLM). The quarter wave plate is located between the PBS and mirror and changes the first polarization of light, directed from the PBS to the mirror, to a second polarization which is reflected from the mirror back to the PBS. The SLM receives this second polarization of light after reflection thereof by the PBS, and selectively rotates the second polarization of light to form an image forming light having the first polarization, which is reflected back to the PBS. Through an exit face, the PBS provides the rotated image forming light to a viewer. Between the viewer and the PBS exit surface, an imaging lens system is provided that includes at least one folding mirror.
    • 公开了包括用于提供光的光的照明系统和显示器,具有接收来自背光的光的第一表面的偏振分束器(PBS)。 PBS将接收到的光的第一偏振通过位于第二PBS面处的第二PBS面的第二PBS面与第一PBS面相对。 反射镜的曲率提供适当成像所需的光学功率,同时限制反射镜的反射面积提供了确定光学系统的数值孔径的孔径光阑。 显示器还包括四分之一波片和空间光调制器(SLM)。 四分之一波片位于PBS和反射镜之间,并将从PBS引导到反射镜的光的第一偏振改变为从反射镜反射回PBS的第二偏振。 SLM在由PBS反射之后接收第二偏振光,并且选择性地旋转光的第二偏振,以形成具有反射回到PBS的具有第一偏振的图像。 通过出射面,PBS将旋转的图像形成光提供给观看者。 在观看者和PBS出射表面之间,提供了包括至少一个折叠镜的成像透镜系统。