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Color‐breakup suppression and low‐power consumption by using the Stencil‐FSC method in field‐sequential LCDs
Author(s) -
Lin FangCheng,
Huang YiPai,
Wei ChingMing,
Shieh HanPing D.
Publication year - 2009
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/jsid17.3.221
Subject(s) - backlight , stencil , liquid crystal display , computer science , artifact (error) , power consumption , contrast (vision) , contrast ratio , power (physics) , optics , computer graphics (images) , computer vision , physics , computational science , quantum mechanics , operating system
— 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.