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    • 4. 发明授权
    • Back-light device for liquid crystal display
    • 背光装置用于液晶显示
    • US06406159B1
    • 2002-06-18
    • US09477526
    • 2000-01-04
    • Ryuya Yamamoto
    • Ryuya Yamamoto
    • F21V704
    • G02B6/0043G02B6/0055
    • A back-light device for a liquid crystal display in which chromaticity can be corrected without impairing the brightness of a liquid crystal display panel and in which the occurrence of bright lines can be effectively prevented. In the back-light device for the liquid crystal display provided with a reflection sheet on one side of a light guiding plate and a diffusion sheet on the other side of the same and a light source composed of a cathode tube on the side, a chromaticity correcting film is mounted to the end, positioned nearer to the cathode tube, of the reflection sheet and light partially reflected off the upper surface of the light guiding plate is reflected off the reflection sheet and returns to the light guiding plate. By repeated reflection of light between the light guiding plate and the reflection sheet, the corrected light is spread uniformly over the whole of the light guiding plate, thus promoting the correction of chromaticity.
    • 一种用于液晶显示器的背光装置,其中可以在不损害液晶显示面板的亮度的情况下校正色度,并且可以有效地防止亮线的发生。 在用于液晶显示器的背光装置中,在导光板的一侧设置有反射片,在另一侧具有扩散片,在侧面由阴极管构成的光源,色度 安装在反射片的靠近阴极管的端部的位置,并且从导光板的上表面部分反射的光从反射片反射而返回到导光板。 通过在导光板和反射片之间重复反射光,校正后的光在整个导光板上均匀分散,从而促进了色度的校正。