Proceedings of the International Display Workshops Volume 27 (IDW '20)

Proceedings of the International Display Workshops Volume 27 (IDW '20)

Dec 9 - Dec 11, 2020Virtual Conference
The International Display Workshops
Proceedings of the International Display Workshops Volume 27 (IDW '20)

Proceedings of the International Display Workshops Volume 27 (IDW '20)

Dec 9 - Dec 11, 2020Virtual Conference

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

Keywords:

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

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.