W. Chou, Po-Hsien Huang, Ming-Yan Fan, Ke-Horng Chen, K. Wen, Zhih Han Tai, Yi Hsuan Cheng, Chi Chung Tsai, Hsin-Yu Luo, Shih-Ming Wang, Long-Der Chen, Cheng-Chen Yang, Jui-Lung Chen
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引用次数: 0
Abstract
The embedded fully self-biased switched-capacitor (FSBSC) with single-inductor high voltage bipolar-output (SIHBO) converter is proposed to achieve the energy and area-efficient driving scheme for the paper-like cholesteric liquid crystal display (Ch-LCD), which becomes the next generation of electronic readers in the consumer markets. As the compact power management module, SIHBO converter can provide +/-35V bipolar outputs for row driving. Besides, the embedded FSBSC is utilized to generate the different voltage levels for modulating the gray-color in column driving scheme. This combination carries out the effective driving operation for Ch-LCD through the demand of timing control unit. Experimental results show the achievement of +/-35V output voltage in the SIHBO converter and the variety voltage levels generated from FSBSC. The peak efficiency is up to 84% with the silicon area of 6.53 mm2.
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