Color‐breakup suppression and low‐power consumption by using the Stencil‐FSC method in field‐sequential LCDs |
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| Authors: | Fang‐Cheng Lin Yi‐Pai Huang Ching‐Ming Wei Han‐Ping D Shieh |
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| Affiliation: | 1. Department of Photonics and the Institute of Electro‐Optical Engineering, National Chiao Tung University, Rm. 502, CPT Building, 1001 Ta Hsueh Rd., Hsinchu, Taiwan 30010;2. Display Institute, National Chiao Tung University, Hsinchu, Taiwan |
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| Abstract: | 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. |
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| Keywords: | Field‐sequential color color filterless color breakup low power consumption local backlight dimming high dynamic range |
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