Browsing by Author "Yang, W. -H."

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Multi-layered light guide plate without using optical films
(2007-01-01)
Chang, Y. -Y.
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Yao, P. -H.
;
Yang, W. -H.
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光電工程學系
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Department of Photonics
A multi-layered light guide plate (LGP) with optimized reflective prism structure is employed to out-couple the light toward the normal-view direction. A prototype is manufactured by UV embossing replication. The luminance angular distribution of the multi-layered LGP shows the emitting light can be well-controlled, and a sheetless LGP is feasible.
The design for optical prism sheet on the bottom of the directly-under-light type backlight module
(2007-01-01)
Chen, C. -F.
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Lu, L. -M.
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Yau, P. -H.
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Yang, W. -H.
;
Lin, H. -S.
In the directly-under-light type backlight module, uniformity is the important property. We put the optical prism sheet on the bottom of the backlight module and design the prism sheet to tune the prism angle for best uniformity. The result is not only to improve uniformity, but also enhance brightness slightly.