Title :
The design and implementation of follower for CSTN-LCD driver
Author :
Yi, Qingming ; Zhang, Jing
Author_Institution :
Dept. of Electron. Eng., JiNan Univ., Guangzhou, China
Abstract :
An implementation scheme of low-power and high slewing rate follower for CSTN-LCD system is presented in this paper. Auxiliary charging and discharging modules are adopted in order to meet the low-power and high slewing rate demands simultaneously. Cascade frequency compensation is used to obtain better frequency response properties and improve the Power Supply Rejection Ratio (PSRR) of the circuit. Floating current source is utilized to make the circuit structure more compact. Simulation analysis and tape-out verification indicate the follower meets the CSTN-LCD performance requirements of low-power and high slewing rate.
Keywords :
constant current sources; driver circuits; liquid crystal displays; nematic liquid crystals; CSTN-LCD driver follower; auxiliary charging module; cascade frequency compensation; color super twist nematic LCD; discharging module; floating current source; high slewing rate; power supply rejection ratio; Capacitance; Communication system control; Consumer electronics; Control systems; Driver circuits; Engineering management; Frequency response; Liquid crystal displays; Power transmission; Voltage; CSTN-LCD Driver; Follower; High slewing rate; Low-power;
Conference_Titel :
Computing, Communication, Control, and Management, 2009. CCCM 2009. ISECS International Colloquium on
Conference_Location :
Sanya
Print_ISBN :
978-1-4244-4247-8
DOI :
10.1109/CCCM.2009.5268095
