Title :
A Time-Space mix-modulation for TFT-LCD drive system
Author :
Tang, Zhi-jie ; Luo Jun ; Xie, Shao-rong
Author_Institution :
Sch. of Mechatron. Eng. & Autom., Shanghai Univ., Shanghai, China
Abstract :
This paper describes a Time-Space mix-modulation drive method of TFT-LCD for high gray scale display. The method includes the time-domain frame modulation and the spatial domain digital-analog converter (DAC) gray-scale modulation. The time-domain frame modulation completed the digital image high-level gray-scale scan-drive, using multi-screen subspace scanning frame modulation. The spatial domain modulation completed the digital image low-level gray-scale scan-drive by using the digital-to-analog converter modulation in the source IC of TFT-LCD. This method can effectively enhance the grayscale display level of TFT-LCD. This method is applied to a 1280*1024 dots RGB TFT-LCD.
Keywords :
driver circuits; flat panel displays; liquid crystal displays; modulation; thin film transistors; TFT-LCD drive system; digital image low-level gray-scale scan-drive; high gray scale display; multi-screen subspace scanning frame modulation; spatial domain digital-analog converter gray-scale modulation; time-domain frame modulation; time-space mix-modulation; Drives; Gray-scale; Modulation; Pixel; Thin film transistors; Time domain analysis;
Conference_Titel :
Audio Language and Image Processing (ICALIP), 2010 International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-5856-1
DOI :
10.1109/ICALIP.2010.5684621
