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    • 84. 发明授权
    • Light diffusing plate and display apparatus
    • 光扩散板和显示装置
    • US06778239B2
    • 2004-08-17
    • US09484223
    • 2000-01-18
    • Toshitaka AganoAkira YamaguchiKenichi Nakagawa
    • Toshitaka AganoAkira YamaguchiKenichi Nakagawa
    • G02F11335
    • G02B5/0278G02B5/0226G02F1/1336G02F2001/133562
    • The light diffusing plate includes an unrecognizable structure having an optical refractive power, passing areas through which a collimated light incident from a side of the unrecognizable structure passes and a non-passing area other than the passing areas, which has relatively low light transmissivity compared with the passing areas, wherein both materials of the passing areas and non-passing area are applied simultaneously. The display apparatus includes this light diffusing plate, a liquid crystal display panel and a backlight unit. The image display apparatus includes an image display device having a matrix structure and a light diffusing plate including an unrecognizable structure which has an optical refractive power and is provided on a viewing side of a display screen of the image display device. The light diffusing plate has an excellent light diffusing efficiency, and can preferably reduce a contrast drop to be caused by a surface reflection. The display apparatus for the liquid crystal display device can keep a satisfactory contrast ratio over a wide viewing angle and is preferably applicable to a medical use. The image display apparatus can eliminate pixelization or jaggy and obtain a smooth, natural displayed image.
    • 光漫射板包括具有光折射能力的不可识别的结构,通过从不可识别结构的一侧入射的准直光通过的区域和通过区域以外的非通过区域,与通过区域相比具有相对低的透光率 通过区域,其中同时施加通过区域和不通过区域的两种材料。 显示装置包括该光扩散板,液晶显示面板和背光单元。 该图像显示装置包括具有矩阵结构的图像显示装置和包括具有光学屈光度的不可识别结构并设置在图像显示装置的显示屏幕的观看侧的光漫射板。 光漫射板具有优异的光散射效率,并且可以优选地减少由于表面反射引起的对比度下降。 液晶显示装置的显示装置能够在宽视角下保持令人满意的对比度,优选适用于医疗用途。 图像显示装置可以消除像素化或锯齿状,并获得平滑自然的显示图像。
    • 87. 发明授权
    • Luminance measuring device for liquid crystal display
    • 液晶显示器的亮度测量装置
    • US06657712B2
    • 2003-12-02
    • US10401562
    • 2003-03-31
    • Akira Yamaguchi
    • Akira Yamaguchi
    • G01J100
    • G01J1/32G01J1/0271G02F1/1309H04N17/04
    • A luminance measuring device for a LCD includes a photometric unit having a contact type luminance meter, a light shielding cushion member surrounding a vicinity of a light receiving portion of the contact type luminance meter and a holding unit for fixing the contact type luminance meter to the LCD a converting unit for converting a first luminance measurement result by the contact type luminance meter into a second luminance measurement result corresponding to a telescopic luminance meter and a processing unit for conducting conversion processing using the converting unit to a luminance measurement result of the LCD by the photometric unit.
    • 一种用于LCD的亮度测量装置包括具有接触型亮度计的光度测量单元,围绕接触型亮度计的光接收部分附近的遮光缓冲部件和用于将接触型亮度计固定到 LCD转换单元,用于将接触型亮度计的第一亮度测量结果转换为对应于伸缩式亮度计的第二亮度测量结果;以及处理单元,用于使用转换单元进行到LCD的亮度测量结果的转换处理, 测光单元。
    • 90. 发明授权
    • Color printer and exposure head therefor
    • 彩色打印机和曝光头
    • US06195115B1
    • 2001-02-27
    • US09310979
    • 1999-05-13
    • Akira Yamaguchi
    • Akira Yamaguchi
    • B41J245
    • B41J2/45
    • Compact and inexpensive color printers can be manufactured. An exposure head using linearly-aligned organic EL elements each composed of subpixels each emitting light of R, G, and B is used as a light source. Input color image data are dealt with as color data corresponding to each of the color components R, G, and B. For each color data, each of the organic EL elements is caused to emit light in accordance with line data for one line corresponding to all organic EL elements composing the exposure head, and a photosensitive material is exposed to the light. After completion of the exposure, vertical scan means moves the photosensitive material by a predetermined amount in the vertical scan direction and the photosensitive material is exposed in accordance with image data corresponding to a subsequent line, as has been described above. By repeating this procedure, exposure corresponding to all image data is carried out.
    • 可以制造紧凑且便宜的彩色打印机。 使用每个由发射R,G和B的光的子像素组成的线性排列的有机EL元件的曝光头作为光源。 输入彩色图像数据作为与每个颜色分量R,G和B相对应的颜色数据处理。对于每个颜色数据,使每个有机EL元件根据对应于 构成曝光头的所有有机EL元件和感光材料暴露于光。 在曝光完成之后,如上所述,垂直扫描装置使感光材料沿垂直扫描方向移动预定量,并且根据与后续行对应的图像数据曝光感光材料。 通过重复该过程,执行对应于所有图像数据的曝光。