| Summary: | 碩士 === 國立交通大學 === 工學院精密與自動化工程學程 === 100 === ABSTRACT
The manufacturing technology of LCD is gradually becoming more complex in recent years . The backlight structure consists of light guide plate , diffuser, prism sheet , and frame is the light source of TFT-LCD system. The back light unit is easy to make, but its cost accounted is very high, so it attracts large quantities of manufacturers to plunge into the relevant studies . Optical characteristics of LGP is determined by the micro-structure design. Using micro-structure to detour light from the total reflection of LGP can increase the light inject from light-emitting surface of
LGP. The surface of the micro-structure and processes condition is
correlated with the mold of the optical characteristics.
Using optics simulation software ASAP to build and construct the
V-CUT LGP optics module, one can analyze and discuss the effect of the
variation of its structure parameter, such as V-groove degree(), V-groove depth(D), V-groove pitch(P) on the brightness enhancement . It was found from the result of experiment , relative to other structure parameter, that V-cut degree() influence the brightness enhancement the most, and have the best result on 90 degree.
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