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High-Speed 10-bit LCD Column Driver with a Split DAC and a Class-AB Output Buffer.
- Source :
-
IEEE Transactions on Consumer Electronics . Aug2009, Vol. 55 Issue 3, p1431-1438. 8p. - Publication Year :
- 2009
-
Abstract
- We propose a high-speed rail-b-rail 10-bit column driver with a reduced die area for LCD-TV applications. This column driver combines an 8-bit resistor-string digital-to-analog converter (R-DAC), constructed using d. hybrid-type decoder to reduce the RC time delay and die area, with a 2-bit interpolation DAC. In the output buffer, error amplifiers drive a column line so as to realize a high- speed rail-to-rail drive. Gamma-corrected output voltages are generated by the resistor string of R-DAC, which contains resistors of unequal values that match the inverse of the liquid crystal transmittance-voltage characteristic. A prototype 10- bit LCD column driver was designed and fabricated using a 0. 3μm CMOS technology, and has a settling time of within 2μs and a quiescent current of 5. 4μA per channel. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00983063
- Volume :
- 55
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Consumer Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 44733957
- Full Text :
- https://doi.org/10.1109/TCE.2009.5278010