P‐77: Angular Profile Shaping Film for LCD Backlight with Large Viewing Direction

Ssu-Tuan Huang,Cheng-Ta Mu, Yen-Yu Chou, Guu-Huann Liu,Cheng-Huan Chen

SID Symposium Digest of Technical Papers(2020)

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Abstract
An approach of designing microstructure film to direct the majority of light energy toward large angular direction has been proposed. For an incident illumination concentrated within an angular range of ±25°, the peak of the angular profile has reached 47° for the outgoing light, with an overall efficiency of 67%.
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Key words
lcd backlight,angular profile shaping film,large viewing direction
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