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32.4L: Late‐News Paper : Frontlighting Reflective Display and Enhancing Image using Optical Noise Filtering‐Multilayer LGP
Author(s) -
Käläntär Kälil
Publication year - 2015
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.10429
Subject(s) - gamut , backlight , luminance , liquid crystal display , optics , materials science , noise (video) , computer science , display device , optoelectronics , contrast (vision) , led display , computer vision , physics , image (mathematics) , operating system
The reflective displays, such as electronic papers, micro‐electromechanical systems and micro‐electro‐optical‐mechanical systems, reflective liquid‐crystal displays have great advantages over the transmissive displays in terms of low power consumption, color gamut and high contrast under bright ambient illumination. However, the optical characteristics are deteriorated under dim environment. In general, a single prismatic light‐guide plate (LGP) is employed in frontlight unit (FLU) to illuminate a reflective display, in spite adding optical noise to the display module. In this paper the optical characteristic of a FLU that employs functional integrated LGP, i.e. multilayer/stacked LGPs with luminance enhancing function is studied.