1999•Journal of the Korean Institute of Electrical and Electronic Material EngineersRequires access
Simulations of Pixel Characteristics for Large Size and High Quality TFT-LCD Using a Semi-empirical Capacitance Model
Yeong Jun Yun, Sun Sin Jeong, Tae Hyeong Kim, Jae U Park, Jong Seon Choe
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Abstract
An active-matrix liquid crystal display (LCD) using thin film transistors (TFTs) has been widely recognized as having potential for high-quality color flat-panel displays. In this study, Pixel-Design Array Simulation Tool (PDAST) was used to profoundly understand the gate signal distortion and pixel charging capability, which are the most critical limiting factors for high-quality TFT-LCDs. Since PDAST can simulate the gate, data and pixel voltages of a certain pixel on TFT array at any time and at any location on an array, the effect of the new set of capacitance models on the pixel operations can be effectively analyzed. The set of models which is adopted from very large scale integration (VLSI) interconnections calculate more precise capacitance. The information obtained from this study could be utilized to design the larger area and finer image quality panel.