Title :
A 10b column driver with variable-current-control interpolation for mobile active-matrix LCDs
Author :
Lee, Hyung-Min ; Jeon, Yong-Joon ; Lee, Sung-Woo ; Cho, Gyu-Hyeong ; Kim, Hyoung-Rae ; Choi, Yoon-Kyung ; Lee, Myunghee
Author_Institution :
KAIST, Daejeon
Abstract :
An embedded DAC requires a large number of input transistors (=2N+1 for N-bit interpolation) in its amplifier. Moreover, the transistors require large width and length for accurate matching, leading to an area penalty in the amplifier for high bit interpolation (e.g. N>3). In this paper, an area-efficient and accurate interpolation method that uses variable-current control (VCC) for 10b mobile AMLCD column drivers is presented.
Keywords :
amplifiers; driver circuits; electric current control; interpolation; liquid crystal displays; transistors; amplifier; column driver; mobile AMLCD column drivers; mobile active-matrix LCD; variable-current control; variable-current-control interpolation; Active matrix liquid crystal displays; Driver circuits; Interpolation; Logic; MOS devices; MOSFETs; Optical modulation; Semiconductor device measurement; Size control; Voltage;
Conference_Titel :
Solid-State Circuits Conference - Digest of Technical Papers, 2009. ISSCC 2009. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-3458-9
DOI :
10.1109/ISSCC.2009.4977410
