title: Wideband antireflective circular polarizer exhibiting a perfect dark state in organic light-emitting-diode display.
abstract: We proposed wideband antireflective circular polarizer for realizing a true black state in all viewing directions in organic light-emitting-diode displays (OLEDs). Present commercialized wideband circular polarizer consisted of a half wave and a quarter wave plates having the refractive index parameter (Nz) of 1.5 in both films exhibits light leakage in the oblique viewing directions, deteriorating image quality of a black state. We evaluated Nzs of both films and proposed a new wideband antireflective circular polarizer with a perfect dark state in all viewing directions with Nz = 0.5 in both plates, which will greatly improve image quality of OLEDs.
authors.forename: Bong Choon
authors.initials: BC
authors.lastname: Kim
authors.forename: Young Jin
authors.initials: YJ
authors.lastname: Lim
authors.forename: Je Hoon
authors.initials: JH
authors.lastname: Song
authors.forename: Jun Hee
authors.initials: JH
authors.lastname: Lee
authors.forename: Kwang-Un
authors.initials: KU
authors.lastname: Jeong
authors.forename: Joong Hee
authors.initials: JH
authors.lastname: Lee
authors.forename: Gi-Dong
authors.initials: GD
authors.lastname: Lee
authors.forename: Seung Hee
authors.initials: SH
authors.lastname: Lee