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1 May 2014A study of optical design of power-saving backlight module with external illuminance
In backlight modules, the light guide plate (LGP) is a key component for performance and also facilitates access to develop LGPs on its own. In this research, we propose a newly developed method: LEDs with freeform as a lighting source, are employed to integrate and manipulate the specially designed and optimized 3D-like pattern distribution of the micro features in order to obtain the required optical characteristics at maximal performance. In this research propose the concept of Light Guide Film(LGF) at the back side of Back Light Unit(BLU). This new design may induce the exterior light ,then improve the power-saving of existent BLU. Two design models are reseated: One is design for 14 inch LCD monitor of notebook computer, which might improve 21% compared to traditional one. Another is designed for 3.5 inch LCD for mobile phone display ,which might improve 15% compared to traditional one.
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Yi-Chin Fang, Yih-Fong Tzeng, "A study of optical design of power-saving backlight module with external illuminance," Proc. SPIE 9131, Optical Modelling and Design III, 91312C (1 May 2014); https://doi.org/10.1117/12.2066106