发明名称 LIGHT GUIDE PLATE
摘要 A light guide plate of a surface light source device of edge-light type in which a light source is disposed on a side surface of the plate. The light guide is formed of a transparent thermoplastic resin containing particles. The front surface of the light guide plate serves as a light output surface, and the back surface of the light guide plate is subjected to a light diffusion processing to have a gradation from the side surface toward the direction far from the light source. The light guide plate is characterized in that the color tone variation (YImax-min) which is the difference between the maximum value (YImax) and the minimum value (YImin) of the yellow index (YI) determined from the tristimulus values (XYZ) in the 25 luminance measurement point on the light output surface is 20 or less.
申请公布号 KR20080032208(A) 申请公布日期 2008.04.14
申请号 KR20087004040 申请日期 2006.10.25
申请人 ASAHI KASEI CHEMICALS CORPORATION 发明人 KUROKI TAKEO;HIROTA SATORU
分类号 G02B6/00;G02F1/1335 主分类号 G02B6/00
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