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Low Power Consumption Scan Driver Using Depletion-Mode InGaZnO Thin-Film Transistors  

Lee, Jin-Woo (Department of Electronics and Computer Engineering, Hanyang University)
Kwon, Oh-Kyong (Department of Electronics and Computer Engineering, Hanyang University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.49, no.2, 2012 , pp. 15-22 More about this Journal
Abstract
A low power consumption scan driver using depletion-mode n-type InGaZnO thin-film transistors is proposed. The proposed circuit uses 2 clock signals and generates the non-overlap output signals without the additional masking signals and circuits. The power consumption of the proposed circuit is decreased by reducing the number of the clock signals and short circuit current. The simulation results show that the proposed circuit operates successfully when the threshold voltage of TFT is varied from -3.0V to 1.0V. The proposed scan driver consumes 4.89mW when the positive and negative supply voltage is 15V and -5V, respectively, and the operating frequency is 46KHz on the XGA resolution panel.
Keywords
shift register; depletion mode; InGaZnO; scan driver; low power;
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Times Cited By KSCI : 1  (Citation Analysis)
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