发明名称 |
LIGHT GUIDE PLATE AND BACKLIGHT MODULE |
摘要 |
A light guide plate includes a light emitting surface, a bottom surface, a light incident surface and many optical units. Each of the optical units includes a first optical microstructure and a second optical microstructure. The second optical microstructure has a first surface and a second surface. A first cross-sectional line obtained by cutting the first surface along a direction perpendicular to the light incident surface and the light emitting surface is an inclined straight line. A first end of a second cross-sectional line obtained by cutting the second surface along the direction perpendicular to the light incident surface and the light emitting surface and a second end of the second cross-sectional line are connected to form a reference straight line. An acute angle included by the reference straight line and a normal line of the light emitting surface isα. The acute angleαsatisfies an equation: [ 90 ° + sin - 1 ( sin ψn ) ] 2 - 15 °≤α≤[ 90 ° + sin - 1 ( sin ψn ) ] 2 + 15 °
|
申请公布号 |
US2013058130(A1) |
申请公布日期 |
2013.03.07 |
申请号 |
US201213602341 |
申请日期 |
2012.09.04 |
申请人 |
HU CHIA-CHUANG;LIU MING-DAH;YOUNG LIGHTING TECHNOLOGY INC. |
发明人 |
HU CHIA-CHUANG;LIU MING-DAH |
分类号 |
F21V8/00 |
主分类号 |
F21V8/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|