Title :
Amorphous silicon thin-film transistor gate driver circuit design optimization using a simulation-based evolutionary technique
Author :
Chiu, Ying-Ju ; Lee, Kuo-Fu ; Chen, Ying-Chieh ; Cheng, Hui-Wen ; Li, Yiming ; Chiang, Tony ; Huang, Kuen-Yu ; Hsieh, Tsau-Hua
Author_Institution :
Dept. of Transp. Technol. & Manage., Nat. Chiao-Tung Univ., Hsinchu, Taiwan
Abstract :
In this work, we for the first time optimize dynamic characteristic of amorphous silicon thin-film transistor (TFT) gate (ASG) driver circuits for TFT-LCD panel. The rise time, fall time, power dissipation, and ripple voltage of the ASG driver circuit are optimized using simulation-based evolutionary method which integrates genetic algorithm and circuit simulation on the unified optimization framework. Two different a-Si:H TFT ASG driver circuits are optimized, the first circuit consisting of 14 a-Si:H TFT devices is designed for the specification of the rise time <; 1.5 μs, the fall time <; 1.5 μs and the ripple voltage <; 3 V with the minimization of total layout area. The second one with 8 a-Si:H TFTs is further optimized with the power dissipation <; 2 mW. The results of this study successfully met the desired specification; consequently, it benefits manufacturing of TFT-LCD panel.
Keywords :
driver circuits; evolutionary computation; integrated circuit design; liquid crystal displays; thin film transistors; TFT-LCD panel; amorphous silicon thin-film transistor gate driver circuit design optimization; circuit simulation; fall time; genetic algorithm; power dissipation; ripple voltage; rise time; simulation-based evolutionary method; simulation-based evolutionary technique; Amorphous silicon; Circuit simulation; Design optimization; Driver circuits; Genetic algorithms; Minimization; Optimization methods; Power dissipation; Thin film transistors; Voltage;
Conference_Titel :
Semiconductor Electronics (ICSE), 2010 IEEE International Conference on
Conference_Location :
Melaka
Print_ISBN :
978-1-4244-6608-5
DOI :
10.1109/SMELEC.2010.5549386
