International Display Workshops General Incorporated Association

16:10 〜 18:10

[LCTp1-4L] Enhanced Utilization of Ambient Light by Optical Films Coupled to a Luminescent Waveguide

*Yasuhiro Tsutsumi1, Shiori Matsuda1, Ichiro Fujieda1 (1. Ritsumeikan University(Japan))

luminescent waveguide, optical film, ambient contrast ratio, liquid crystal

https://doi.org/10.36463/idw.2020.0115

Ambient light is converted to photoluminescence photons in a luminescent waveguide. A reflector placed below increases the upward flux by a factor of 1.7. A lightdiffusing film attached to its bottom surface improves this factor to 2.2. The ambient light redirected by these films would narrow a color gamut.