A Novel Level Shifter Employing IGZO TFT

被引:18
作者
Kim, Binn [1 ,2 ]
Choi, Seung Chan [2 ]
Kuk, Seung-Hee [1 ]
Jang, Yong Ho [2 ]
Park, Kwon-Shik [2 ]
Kim, Chang-Dong [2 ]
Han, Min-Koo [1 ]
机构
[1] Seoul Natl Univ, Sch Elect Engn, Seoul 151742, South Korea
[2] LG Display, R&D Ctr, Paju 413811, South Korea
关键词
Depletion mode; indium-gallium-zinc-oxide thin-film transistor (IGZO TFT); level shifter; CIRCUITS;
D O I
10.1109/LED.2010.2093505
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A new level shifter employing indium-gallium-zinc-oxide thin-film transistor (IGZO TFT) for a display panel was proposed and successfully fabricated. Two clock signals with 180 degrees. out of phase and a discharging TFT were employed to obtain a full-swing output. The IGZO level shifter has successfully exhibited a wide swing output from VDD to VSS without any additional power sources and input signals. The power consumption is 0.30 mW at a clock frequency of 12.5 kHz. The proposed level shifter with a depletion-mode device would be an important building block for an oxide TFT display.
引用
收藏
页码:167 / 169
页数:3
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