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

• DOI: 10.1889/jsid17.3.221
• Publication Date: 2009-02-19T23:45:41Z
• Authors: Fang‐Cheng Lin; Yi‐Pai Huang; Ching‐Ming Wei; Han‐Ping D. Shieh
• Keywords: Backlight; Stencil; Artifact (error); Contrast ratio

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