Premium
Transparent Slanted Phase Gratings in Emissive Waveguides
Author(s) -
Jagt H. J. B.,
Cornelissen H. J.,
Bastiaansen C. W. M.,
Broer D. J.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200400330
Subject(s) - materials science , holography , optics , grating , optoelectronics , transparency (behavior) , liquid crystal , diffraction , diffraction efficiency , phase (matter) , diffraction grating , bragg's law , physics , quantum mechanics , political science , law
A new front‐illumination principle is demonstrated for use in energy efficient and bright reflective liquid crystal displays (LCDs). The new emissive waveguide principle presented is based on Bragg diffraction of waveguided light at a tuned holographic grating. The frontlight exhibits negligible image deterioration due to an excellent transparency and a high preference for (linearly polarized) light emission towards the display.