发明名称 ILLUMINATING DEVICE FOR LIQUID CRYSTAL DISPLAY ELEMENT
摘要 PURPOSE:To uniformly and sufficiently illuminate the whole surface of a liquid crystal display element by reflecting light radiated from a light emitting element on the rear face side of a transparent photoconductor and guiding the reflected light to the liquid crystal display element through a color filter. CONSTITUTION:The color filter 3 for reflecting light at random like glared light and penetrating the reflected light is stuck to the surface of the transparent plate-like photoconductor 1 through a concave part 1c and a reflecting member 7 and an untranslucent coating 1f are applied to the rear face and side face respectively. Light 50 from the light emitting element 5 inserted into a hole 1a formed near both the sides of the rear face of the photoconductor is reflected on an inclined face 1b and glared light penetrated into the filter 3 is guided to a liquid crystal display element (not shown in figure). Thereby, the reflected light illuminates the whole surface of the display element uniformly, and since the light is indirect illumination, the longitudinal size of the illuminating device can be narrowed.
申请公布号 JPS63293506(A) 申请公布日期 1988.11.30
申请号 JP19870129030 申请日期 1987.05.26
申请人 TEIKOKU TSUSHIN KOGYO KK 发明人 KAI AKIO
分类号 G02B6/00;G02F1/133;G02F1/1335;G02F1/13357;G09F9/00 主分类号 G02B6/00
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