title: Polarizing grating color filters with large acceptance angle and high transmittance.
abstract: We design and simulate a polarizing color filter with a sub-wavelength metal-dielectric grating. It manifests several advantages: a large acceptance angle (up to ±50°), high transmittance (74.3%-92.7%), low absorption loss (∼3.3%), and a high extinction ratio. This polarizing color filter can be integrated into a liquid-crystal display (LCD) backlight system to simultaneously recycle the light according to its color and polarization. In combination with a specially designed directional backlight, this newly proposed LCD system can theoretically improve optical efficiency up to ∼2.5×, and also provides a large ambient contrast ratio and a wide view. Our approach enables an ultra-low-power LCD without using the complicated field-sequential-color technique.
authors.forename: Zhenyue
authors.initials: Z
authors.lastname: Luo
authors.forename: Guiju
authors.initials: G
authors.lastname: Zhang
authors.forename: Ruidong
authors.initials: R
authors.lastname: Zhu
authors.forename: Yating
authors.initials: Y
authors.lastname: Gao
authors.forename: Shin-Tson
authors.initials: ST
authors.lastname: Wu