公开(公告)号：EP0981065A2

公开(公告)日：2000-02-23

申请号：EP99122462.7

申请日：1996-08-26

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： Alvelda, Phillip ,  Knight Jr.,Thomas F.

IPC: G02F1/1335

CPC classification number: G02F1/133621 ,  G02B27/017 ,  G02B27/0172 ,  G02B2027/0132 ,  G02B2027/0154 ,  G02B2027/0178 ,  G02F1/136 ,  G02F1/136277 ,  G02F2201/305 ,  G02F2203/34

Abstract: The present invention provides a visual display including a high resolution miniature display compatible with VLSI technology and an optical system such as an optical magnifier used to enlarge the images displayed on the miniature display to be visible to the naked eye. The miniature display includes a VLSI backplane having an array of display elements monolithically formed with its driving circuit on a single crystalline semiconductor. Signal processing circuit or a microprocessor used to process image signals for the display may also be formed monolithically with the array and its driving circuit. The array may be designed using a software silicon compiler program to have randomly displaced elements or superpixels for reducing image aliasing. The array may also be designed to have display elements positioned and scaled to compensate for the optical distortion introduced by the magnifier. A color microdisplay utilizes diffraction gratings to provide an array of high efficiency color pixels. The microdisplay includes a semiconductor substrate and source of light disposed adjacent thereto. A cover plate may be disposed above the substrate and has a layer of conductive material on a surface of the cover plate opposite the substrate. An optically active material, such as liquid crystal material, may be disposed between the substrate and the cover plate. An array of pixels are formed on the substrate. The pixel array includes an array of diffraction grating elements. Each element includes one or more diffraction gratings. The pitch of each diffraction grating can be a function of the angle of the incident light and the desired diffraction output spectrum. An optical system directs the diffracted light from each grating through the optically active material into viewing optics.

Abstract translation: 本发明提供一种包括与VLSI技术兼容的高分辨率小型显示器和诸如光学放大器的光学系统的视觉显示器，所述光学系统用于放大显示在微型显示器上以便肉眼可见的图像。 微型显示器包括VLSI背板，其具有在单晶半导体上以其驱动电路单片形成的显示元件阵列。 用于处理用于显示器的图像信号的信号处理电路或微处理器也可以与阵列及其驱动电路单片地形成。 可以使用软件硅编译器程序来设计阵列以具有随机移位元素或超像素以减少图像混叠。 该阵列还可以被设计为具有定位和缩放的显示元件以补偿由放大器引入的光学失真。 彩色微型显示器利用衍射光栅来提供一系列高效彩色像素。 微型显示器包括半导体衬底和与之相邻设置的光源。 盖板可以设置在基板上方并且在盖板的与基板相对的表面上具有一层导电材料。 诸如液晶材料的光学活性材料可以设置在基板和盖板之间。 在衬底上形成像素阵列。 像素阵列包括衍射光栅元件的阵列。 每个元件包括一个或多个衍射光栅。 每个衍射光栅的间距可以是入射光的角度和期望的衍射输出光谱的函数。 光学系统将来自每个光栅的衍射光引导通过光学活性材料进入观察光学器件。

公开(公告)号：EP0981065A3

公开(公告)日：2000-05-10

申请号：EP99122462.7

申请日：1996-08-26

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： Alvelda,Phillip ,  Knight Jr.,Thomas F.

IPC: G02F1/1335 ,  G02B27/01

CPC classification number: G02F1/133621 ,  G02B27/017 ,  G02B27/0172 ,  G02B2027/0132 ,  G02B2027/0154 ,  G02B2027/0178 ,  G02F1/136 ,  G02F1/136277 ,  G02F2201/305 ,  G02F2203/34

Abstract: The present invention provides a visual display including a high resolution miniature display compatible with VLSI technology and an optical system such as an optical magnifier used to enlarge the images displayed on the miniature display to be visible to the naked eye. The miniature display includes a VLSI backplane having an array of display elements monolithically formed with its driving circuit on a single crystalline semiconductor. Signal processing circuit or a microprocessor used to process image signals for the display may also be formed monolithically with the array and its driving circuit. The array may be designed using a software silicon compiler program to have randomly displaced elements or superpixels for reducing image aliasing. The array may also be designed to have display elements positioned and scaled to compensate for the optical distortion introduced by the magnifier. A color microdisplay utilizes diffraction gratings to provide an array of high efficiency color pixels. The microdisplay includes a semiconductor substrate and source of light disposed adjacent thereto. A cover plate may be disposed above the substrate and has a layer of conductive material on a surface of the cover plate opposite the substrate. An optically active material, such as liquid crystal material, may be disposed between the substrate and the cover plate. An array of pixels are formed on the substrate. The pixel array includes an array of diffraction grating elements. Each element includes one or more diffraction gratings. The pitch of each diffraction grating can be a function of the angle of the incident light and the desired diffraction output spectrum. An optical system directs the diffracted light from each grating through the optically active material into viewing optics.