한국정보디스플레이학회:학술대회논문집
- 2000.01a
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- Pages.73-74
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- 2000
Optimized Gate Driving to Compensate Feed-through Voltage for $C_{ST}-on-Common$
- Jung, Soon-Shin (School of Electronics and Electrical Engineering, Hong-Ik Uinv) ;
- Yun, Young-Jun (School of Electronics and Electrical Engineering, Hong-Ik Uinv) ;
- Park, Jae-Woo (School of Electronics and Electrical Engineering, Hong-Ik Uinv) ;
- Roh, Won-Yeol (School of Electronics and Electrical Engineering, Hong-Ik Uinv) ;
- Choi, Jong-Sun (School of Electronics and Electrical Engineering, Hong-Ik Uinv)
- Published : 2000.01.13
Abstract
In recent years, attempts have been made to greatly improve the display quality of active-matrix liquid crystal display devices, and many techniques have been proposed to solve such problems as gate signal delay, feed-through voltage and image sticking[1-3]. To improve these problems which are caused by the feed-through voltage, we have evaluated new driving methods to reduce the feed-through voltage. Two level gate-pulse was used for the gate driving of the cst-on-common structure pixels. These gate driving methods offer better feed-through characteristics than conventional simple gate pulse. Optimized step signal will compensate by step pulse time and voltage. The evaluation of the suggested driving methods were performed by using a TFT-LCD array simulator PDAST which can simulate the gate, data and pixel voltages of a certain pixel at any time and at any location on a TFT array. The effect of the new driving method was effectively analyzed.
Keywords