A low-power scan driver using depletion-mode amorphous indium-gallium-zinc- oxide thin-film transistors for high-resolution active-matrix liquid-crystal displays

Chang Hee Lee, Oh-Kyong Kwon

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

3 Scopus citations

Abstract

A low-power scan driver using depletion-mode amorphous indium-gallium-zinc- oxide (a-IGZO) thin-film transistors (TFTs) is proposed to integrate on 10-inch wide quad extended graphics array (WQXGA, 1600 × 2560) active-matrix liquid-crystal displays (AMLCDs). The proposed scan driver uses clock signals with a reduced voltage swing for lower power consumption. In addition, the proposed scan driver uses ten a-IGZO TFTs, one capacitor and five external signals per stage to achieve the simple structure. In comparison with the state-of-the-art, 24.2% of power consumption is reduced. The power consumption of the proposed scan driver of ten stages is 460.2 μW at the output voltage swing of 30 V and the operating frequency of 153.6 kHz.

Original languageEnglish
Title of host publicationProceedings of the 20th International Workshop on Active-Matrix Flatpanel Displays and Devices
Subtitle of host publicationTFT Technologies and FPD Materials, AM-FPD 2013
Pages111-112
Number of pages2
Publication statusPublished - 2013 Nov 22
Event20th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, AM-FPD 2013 - Kyoto, Japan
Duration: 2013 Jul 22013 Jul 5

Publication series

NameProceedings of the 20th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, AM-FPD 2013

Other

Other20th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, AM-FPD 2013
CountryJapan
CityKyoto
Period13/07/213/07/5

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Lee, C. H., & Kwon, O-K. (2013). A low-power scan driver using depletion-mode amorphous indium-gallium-zinc- oxide thin-film transistors for high-resolution active-matrix liquid-crystal displays. In Proceedings of the 20th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, AM-FPD 2013 (pp. 111-112). [6617790] (Proceedings of the 20th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, AM-FPD 2013).