发明名称 |
Light adjusting sheet having a sinusoidal surface and a non-optically flat surface and useable with an LCD |
摘要 |
A light adjusting sheet for a planar lighting device includes a plurality of convex and concave streaks arranged alternately and approximately parallel to each other on one surface. The streaks may have a cross section of a sine curve. Another light adjusting sheet consists of a plurality of single sheets each having the above configulation, stacked together. A planar lighting device includes the light adjusting sheet of the above configulation, wherein peak lines of the convex streaks and bottom lines of the concave streaks are arranged to make a predetermined angle with an axis of a linear light source. The liquid crystal display includes a liquid crystal display element placed on front of the planar lighting device of the above configulation.
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申请公布号 |
US5552907(A) |
申请公布日期 |
1996.09.03 |
申请号 |
US19940301412 |
申请日期 |
1994.09.08 |
申请人 |
SEKISUI CHEMICAL CO., LTD. |
发明人 |
YOKOTA, TOMOHIRO;NISHITANI, FUMIO;OGAWARA, HIROSHI;KUBO, AKIHITO;FUJIGAMI, MAKOTO |
分类号 |
F21V5/04;F21V8/00;G02F1/13357;(IPC1-7):G02F1/133;F21V7/04 |
主分类号 |
F21V5/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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