Simplified Gate Driver Circuit for High-Resolution and Narrow-Bezel Thin-Film Transistor Liquid Crystal Display Applications

Author

Chih-Lung Lin ; Fu-Hsing Chen ; Wun-Cing Ciou ; Yuan-Wei Du ; Chia-En Wu ; Ching-En Lee

Author_Institution

Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan

Volume

36

Issue

8

fYear

2015

fDate

Aug. 2015

Firstpage

808

Lastpage

810

Abstract

A novel gate driver circuit composed of four thin-film transistors (TFTs) and two capacitors is developed. Three-phase overlapping clock signals are used in multifunction input TFT and driving TFT, so the proposed circuit can have a simple structure. The electrical characteristics of a fabricated amorphous-indium-gallium-zinc-oxide TFT are measured to establish the model of HSPICE simulation. Simulated results confirm that the proposed gate driver circuit generates stable gate pulses according to the specification of a 5.46-in full high-definition panel and the single-stage layout area is 400 μm × 126 μm. These specifications are favorable for high-resolution and narrow-bezel active-matrix liquid crystal displays.

Keywords

driver circuits; liquid crystal displays; thin film transistors; InGaZnO; full high definition panel; gate driver circuit thin film transistor; high resolution thin film transistor; liquid crystal display applications; narrow bezel active matrix liquid crystal display; narrow bezel thin film transistor; size 5.46 in; three phase overlapping clock signals; Capacitors; Clocks; Discharges (electric); Driver circuits; Layout; Logic gates; Thin film transistors; Gate driver circuit; Gate driver circuit,; high-resolution; narrow-bezel; narrow-bezel, thin-film transistor (TFT); thin-film transistor (TFT);

fLanguage

English

Journal_Title

Electron Device Letters, IEEE

Publisher

ieee

ISSN

0741-3106

Type

jour

DOI

10.1109/LED.2015.2450231

Filename

7137631