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Low-power consumption level-shifter used clamping circuit technique and LTPS technology for TFT-LCD

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4 Author(s)
Imai, S. ; Syst. Solutions Planning Dept., Sharp Corp., Nara, Japan ; Nakanishi, N. ; Suzuki, Y. ; Umeda, K.

In this paper, a low-power consumption level-shifter using the clamping circuit technique and LTPS (low temperature poly silicon) technology for TFT LCD (thin film transistor-liquid crystal display) is proposed. The new proposed level-shifter can convert from the input amplitude of 0∼+3 V to the output amplitude of 0∼+10 V by using only one input signal. The power consumption of the proposed level-shifter can be reduced to about 1/2 that of the conventional one under conditions of +10 V power supply voltage, 1 pF load capacitor and 2 MHz operating frequency. For an application, the proposed level-shifter can be adopted to the high-voltage generator.

Published in:

Intelligent Signal Processing and Communication Systems, 2004. ISPACS 2004. Proceedings of 2004 International Symposium on

Date of Conference:

18-19 Nov. 2004