Title :
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
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);
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2015.2450231
