发明名称 LIGHT DIFFUSION SHEET AND BACKLIGHT UNIT USING THE SAME
摘要 <P>PROBLEM TO BE SOLVED: To provide a light diffusion sheet capable of enhancing heat resistance, thermal dimensional stability, and weatherability while maintaining transparency and less liable to sag, yellowing or the like, even under heat generated by a lamp or ultraviolet ray irradiation, and to provide a backlight unit which reduces unevenness in luminance using the light diffusion sheet. <P>SOLUTION: The light diffusion sheet 1 is provided with a transparent base layer 2 and a light diffusion layer 3 stacked on the front surface of the base layer 2, and the light diffusion layer 3 contains a light diffusion agent 5 in its binder 4. The binder 4 is formed from a polymeric composition containing polyol, a minute inorganic filler, and a light stabilizer (a polymeric composition containing polyol having a light stabilizing group and a minute inorganic filler), and the average particle size of the minute inorganic filler is 5 nm to 50 nm. <P>COPYRIGHT: (C)2004,JPO
申请公布号 JP2004004600(A) 申请公布日期 2004.01.08
申请号 JP20030064212 申请日期 2003.03.10
申请人 KEIWA INC 发明人 KAMIKITA MASAKAZU;MINEO YUTAKA
分类号 G02B5/02;B32B7/02;B32B27/30;F21V8/00;F21Y103/00;G02B1/04;G02B1/10;G02F1/13357 主分类号 G02B5/02
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