Abstract
A methodology, based on two-dimensional super-Gaussian light spread
functions (LSFs), was studied for the light-emitting-diode (LED) backlighting
system in the high dynamic range (HDR) liquid crystal displays (LCDs). We
proposed a novel LED-based optomechanical configuration to implement the desirable
luminous pattern. A dual-liquid-crystal-panel system was constructed as a
pseudo-HDR LCD to evaluate the super-Gaussian illumination. The proposed HDR
scheme was verified via the current platform: overall luminance uniformity,
contrast ratio and processing speed could be improved by factors of 1.55,
1.95–4.15, and 4.82, respectively. The design flexibility made the methodology
applicable to any panel dimension and backlight division of the HDR LCDs,
and to the conventional full-on backlighting LCDs as well.
© 2009 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription