Premium
A field‐sequential‐color display with a local‐primary‐desaturation backlight scheme
Author(s) -
Zhang Yuning,
Lin FangCheng,
Langendijk Erno H. A.
Publication year - 2011
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/jsid19.3.258
Subject(s) - backlight , liquid crystal display , color gel , computer science , primary color , gamut , luminance , color difference , computer vision , breakup , light emitting diode , display device , artificial intelligence , filter (signal processing) , optics , computer graphics (images) , materials science , optoelectronics , physics , layer (electronics) , mechanics , composite material , operating system , thin film transistor
— Field‐sequential‐color technology eliminates the need for color filters in liquid‐crystal displays (LCDs) and results in significant power savings and higher resolution. But the LCD suffers from color breakup, which degrades image quality and limits practical applications. By controlling the backlight temporally and spatially, a so‐called local‐primary‐desaturation (LPD) backlight scheme was developed and implemented in a 180‐Hz optically compensated bend (OCB) mode LCD equipped with a backlight consisting of a matrix of light‐emitting diodes (LEDs). It restores image quality by suppressing color breakup and saves power because it has no color filter and uses local dimming. A perceptual experiment was implemented for verification, and the results showed that a field‐sequential‐color display with a local‐primary‐desaturation backlight reduced the color breakup from very annoying to not annoying and even invisible.