Abstract
The light guide plate, as part of the backlight unit in a cell-phone or liquid crystal display, has evolved to meet market demands for low power consumption, high-luminance and high-quality displays. Along with the advance of the light guide plate, LEDs have undergone development as light source for light guide plates. Surpassing the limitations of LED emission in the visible light range, LEDs that emit ultraviolet light have been developed. In recent years, the ultraviolet light are used as a source of light of the air cleaner, and it is used as a source of light to activate the titanium oxide which is photocatalyst. Common ultraviolet light sources are either line or point light sources. There are no surface light sources capable of providing uniform lighting. The laboratory studies surface illuminators that incorporate diffusers in the visible light range. Applying our existing technology, we constructed an unprecedented ultraviolet surface illuminator (surface light source) and measured it using a photocatalyst. The experiment results are presented in this report.
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