Premium
57.2: Enhancing LCD Optical Efficiency with a Linearly Polarized Backlight and Polarization‐preserving Light Guide Plate
Author(s) -
Luo Zhenyue,
Cheng YuWen,
Wu ShinTson
Publication year - 2014
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/j.2168-0159.2014.tb00220.x
Subject(s) - backlight , brightness , liquid crystal display , optics , polarization (electrochemistry) , luminance , power consumption , materials science , light guide , linear polarization , optoelectronics , physics , power (physics) , light source , chemistry , laser , quantum mechanics
We propose a new polarization‐preserving edge‐lit light guide plate (LGP) based on total internal reflection. Our simulation results show that such a LGP exhibits several attractive features: 1.54X higher polarization efficiency, 2.4X higher on‐axis luminance, and no need for a brightness enhancement film. When integrated with a linearly polarized LED array, the LCD optical efficiency can be enhanced dramatically and its power consumption can meet the challenging goal set by Energy Star 6.