Low-power TFT-LCD source driver using triple charge sharing method

Yoo Chang Sung, Byongdeok Choi, Oh-Kyong Kwon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

A low-power source driver for TFT-LCDs has been proposed using triple charge sharing method that enhances the power saving efficiency of the previous charge sharing method. While the efficiency of the previous method is limited to only 50%, the proposed method provides about two-thirds of the total voltage swing of the source line by charge sharing between neighboring source lines and one external capacitor, thus achieving the power saving efficiency up to 66.6%. The additional circuits for this method are very simple, so that the area penalty is negligible. It has been confirmed by SPICE simulation that this method can be applied to 30-inch TFT-LCD with UXGA resolution.

Original languageEnglish
Title of host publicationICVC 1999 - 6th International Conference on VLSI and CAD
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages317-320
Number of pages4
ISBN (Print)0780357272, 9780780357273
DOIs
StatePublished - 1999 Jan 1
Event6th International Conference on VLSI and CAD, ICVC 1999 - Seoul, Korea, Republic of
Duration: 1999 Oct 261999 Oct 27

Other

Other6th International Conference on VLSI and CAD, ICVC 1999
CountryKorea, Republic of
CitySeoul
Period99/10/2699/10/27

Fingerprint

Liquid crystal displays
SPICE
Capacitors
Networks (circuits)
Electric potential

Cite this

Sung, Y. C., Choi, B., & Kwon, O-K. (1999). Low-power TFT-LCD source driver using triple charge sharing method. In ICVC 1999 - 6th International Conference on VLSI and CAD (pp. 317-320). [820918] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICVC.1999.820918
Sung, Yoo Chang ; Choi, Byongdeok ; Kwon, Oh-Kyong. / Low-power TFT-LCD source driver using triple charge sharing method. ICVC 1999 - 6th International Conference on VLSI and CAD. Institute of Electrical and Electronics Engineers Inc., 1999. pp. 317-320
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abstract = "A low-power source driver for TFT-LCDs has been proposed using triple charge sharing method that enhances the power saving efficiency of the previous charge sharing method. While the efficiency of the previous method is limited to only 50{\%}, the proposed method provides about two-thirds of the total voltage swing of the source line by charge sharing between neighboring source lines and one external capacitor, thus achieving the power saving efficiency up to 66.6{\%}. The additional circuits for this method are very simple, so that the area penalty is negligible. It has been confirmed by SPICE simulation that this method can be applied to 30-inch TFT-LCD with UXGA resolution.",
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Sung, YC, Choi, B & Kwon, O-K 1999, Low-power TFT-LCD source driver using triple charge sharing method. in ICVC 1999 - 6th International Conference on VLSI and CAD., 820918, Institute of Electrical and Electronics Engineers Inc., pp. 317-320, 6th International Conference on VLSI and CAD, ICVC 1999, Seoul, Korea, Republic of, 99/10/26. https://doi.org/10.1109/ICVC.1999.820918

Low-power TFT-LCD source driver using triple charge sharing method. / Sung, Yoo Chang; Choi, Byongdeok; Kwon, Oh-Kyong.

ICVC 1999 - 6th International Conference on VLSI and CAD. Institute of Electrical and Electronics Engineers Inc., 1999. p. 317-320 820918.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - A low-power source driver for TFT-LCDs has been proposed using triple charge sharing method that enhances the power saving efficiency of the previous charge sharing method. While the efficiency of the previous method is limited to only 50%, the proposed method provides about two-thirds of the total voltage swing of the source line by charge sharing between neighboring source lines and one external capacitor, thus achieving the power saving efficiency up to 66.6%. The additional circuits for this method are very simple, so that the area penalty is negligible. It has been confirmed by SPICE simulation that this method can be applied to 30-inch TFT-LCD with UXGA resolution.

AB - A low-power source driver for TFT-LCDs has been proposed using triple charge sharing method that enhances the power saving efficiency of the previous charge sharing method. While the efficiency of the previous method is limited to only 50%, the proposed method provides about two-thirds of the total voltage swing of the source line by charge sharing between neighboring source lines and one external capacitor, thus achieving the power saving efficiency up to 66.6%. The additional circuits for this method are very simple, so that the area penalty is negligible. It has been confirmed by SPICE simulation that this method can be applied to 30-inch TFT-LCD with UXGA resolution.

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Sung YC, Choi B, Kwon O-K. Low-power TFT-LCD source driver using triple charge sharing method. In ICVC 1999 - 6th International Conference on VLSI and CAD. Institute of Electrical and Electronics Engineers Inc. 1999. p. 317-320. 820918 https://doi.org/10.1109/ICVC.1999.820918