Title :
An autocharge-compensated S/H circuit for TFT-LCD panel
Author :
Shima, T. ; Itakura, T. ; Yamada, S. ; Minamizaki, H. ; Ishioka, T.
Author_Institution :
Res. & Dev. Center, Toshiba Corp., Kawasaki, Japan
Abstract :
Liquid-crystal displays (LCDs) have been widely used in TV and computer terminals. This article 1 shows a configuration of an LCD module composed of an LCD panel, signal segmentation ICs (SSICs) and a scanning-line controller. One horizontal video signal line, segmented and held in massive parallel S/H circuits in the SSICs, is transferred to a line of pixels through TFTs. The requirements for such a S/H are as follows: 1) sample time, determined by (horizontal scanning time)/(number of horizontal pixels), 2) 5 V full-scale operation range to control LC transparency, 3) over 30 MHz signal bandwidth, 4) low output offset standard deviation both within a chip and between chips, and 5) simple configuration.<>
Keywords :
CMOS integrated circuits; linear integrated circuits; liquid crystal displays; sample and hold circuits; 30 MHz; 5 V; CMOS; TFT-LCD panel; autocharge-compensated S/H circuit; full-scale operation range; horizontal video signal line; offset standard deviation; sample time; scanning-line controller; signal bandwidth; signal segmentation ICs; Computer peripherals; Liquid crystal displays; MOS capacitors; MOSFETs; Samarium; Switches; Switching circuits; Systems engineering and theory; TV; Thin film transistors;
Conference_Titel :
Solid-State Circuits Conference, 1994. Digest of Technical Papers. 41st ISSCC., 1994 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-1844-7
DOI :
10.1109/ISSCC.1994.344729
