A field-sequential-color display with a local-primary-desaturation backlight scheme

Yuning Zhang, Fang-Cheng Lin, Erno H. A. Langendijk

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

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.
Original languageEnglish
Pages (from-to)258-264
Number of pages7
JournalJournal of the Society for Information Display
Volume19
Issue number3
DOIs
StatePublished - Mar 2011

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