Premium
P‐186: Reducing Angular Color Shift in RGB OLEDs by the Introduction of a Circular Polarizer with a Diffractive Optical Element
Author(s) -
Xu Wei-Feng,
Hong Cyun-Tai,
Kuo Chen-Kuan
Publication year - 2019
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.13343
Subject(s) - rgb color model , gamut , polarizer , optics , materials science , optoelectronics , pixel , physics , computer science , artificial intelligence , birefringence
A circular polarizer combined with a diffraction optical structure was developed to reduce the angular color shift of RGB OLEDs with a microcavity structure. The 45° tilted color gamut of commercial OLED tablet displays was enhanced from 61% to 69% NTSC (CIE 1931), and the visible greenish white images at the large viewing angle have been suppressed substantially. We attribute this to the moderate blue shift phenomenon of RGB emission spectrum and the matched angular emission distributions of RGB sub‐pixels.