| Summary: | 碩士 === 國立臺北科技大學 === 有機高分子研究所 === 99 === In recent years,back light module follows the topic of LED luminous
efficiency and energy saving to make the panel more lighter and thinness.
Besides the thinner panel,light along with edge light mark sun-reflect
device research more and more diversification,including sun-reflect
device dot design,dot shape,dot rank,thickness and surface texture,,etc.
This research aims at the refraction index of sun-reflect Device
intrinsic material and bead added to discuss the devices luminance
promotion,light distribution ,and uniformity expression in inner device,
The material is based on PMMA,additive is chosed from different refraction
indexmi cro-texture in specific concentraction and p articale
size,compared with luminance expression and integral light uniformity of
edge light in inner device.
Besides,owing to the high containment of absorption water ratio from the
material of PMMA itself, during the manufacturing process of light guide
plate and the process of printing dots,It is easy to occur plates warped
to affect the yield rate of the manufacturing process of the back light
module factories,
The experiment compared the relation between the absorption water ratio
with bead added and the saturated absorption water ratio.Researches
reveal the material of baed additive is based on PS,
the particle size ranges from 2um to 3um,by adding the bead additive
in light guide plates in this research,luminance promotion is 22%,light
uniformity promotes 27%,the difference of refraction index is 0.1,it
helps promote the light absorption efficiency of light guide plates.
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