发明授权
US09182530B2 Light guide plate with tapering unit optical elements 有权
导光板带锥形单元光学元件

Light guide plate with tapering unit optical elements
摘要:
A light guide plate includes a body portion, first unit optical elements extending on the body portion in the light guide direction, and second unit optical elements disposed in between the first unit optical elements on the body portion. The width of each first unit optical element gradually decreases from that at the center to that at each end in the light guide direction. The ratio of the height to the width in each first unit optical element at the center is higher than the ratio of the height to the width in each second unit optical element.
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