Embedded fully self-biased switched-capacitor for energy and area-efficient cholesteric LCD drivers

Wen Shen Chou, Po Hsien Huang, Ming Yan Fan, Ke-Horng Chen, Kuei-Ann 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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


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 mm 2.

Original languageEnglish
Title of host publicationESSCIRC 2013 - Proceedings of the 39th European Solid-State Circuits Conference
Number of pages4
StatePublished - 31 Dec 2013
Event39th European Solid-State Circuits Conference, ESSCIRC 2013 - Bucharest, Romania
Duration: 16 Sep 201320 Sep 2013

Publication series

NameEuropean Solid-State Circuits Conference
ISSN (Print)1930-8833


Conference39th European Solid-State Circuits Conference, ESSCIRC 2013


  • Cholesteric liquid crystal display (Ch-LCD)
  • fully self-biased switching capacitor (FSBSC)
  • power management
  • single- inductor high-voltage bipolar-output (SIHBO) converter


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