Color-breakup suppression and low-power consumption by using the Stencil-FSC method in field-sequential LCDs

Fang Cheng Lin*, Yi-Pai Huang, Ching Ming Wei, Han Ping D. Shieh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

Field-sequential color (FSC) is a potential technique for low-power liquid-crystal displays (LCDs). However, it still experiences a serious visual artifact, color break-up (CBU), which degrades image quality. Consequently, the "Stencil Field-Sequential-Color (Stencil-FSC)" method, which applies local color-backlight-dimming technology at a 240-Hz field rate to FSC-LCDs, is proposed. Using the Stencil-FSC method not only suppressed CBU efficiently but also enhanced the image contrast ratio by using low average power consumption. After backlight signal optimization, the Stencil-FSC method was demonstrated on a 32-in. FSC-LCD and effectively suppressed the CBU, which resulted in more than a 27,000:1 dynamic contrast ratio and less than 40-W average power consumption.

Original languageEnglish
Pages (from-to)221-228
Number of pages8
JournalJournal of the Society for Information Display
Volume17
Issue number3
DOIs
StatePublished - 1 Mar 2009

Keywords

  • Color breakup
  • Color filterless
  • Field-sequential color
  • High dynamic range
  • Local backlight dimming
  • Low power consumption

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