Wideband antireflective circular polarizer exhibiting a perfect dark state in organic light-emitting-diode display | Zendy

Bong Choon Kim | Zendy; Young Jin Lim | Zendy; Je Hoon Song | Zendy; Jun Hee Lee | Zendy; KwangUn Jeong | Zendy; Joong Hee Lee | Zendy; GiDong Lee | Zendy; Seung Hee Lee | Zendy

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Wideband antireflective circular polarizer exhibiting a perfect dark state in organic light-emitting-diode display

Author(s) -

Bong Choon Kim,

Young Jin Lim,

Je Hoon Song,

Jun Hee Lee,

KwangUn Jeong,

Joong Hee Lee,

GiDong Lee,

Seung Hee Lee

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.0a1725

Subject(s) - polarizer , anti reflective coating , optics , wideband , oled , materials science , viewing angle , optoelectronics , image quality , refractive index , oblique case , circular polarization , physics , liquid crystal display , computer science , birefringence , image (mathematics) , microstrip , layer (electronics) , artificial intelligence , composite material , linguistics , philosophy

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.

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