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Line inversion-based mobile TFT-LCD driver IC with accurate quadruple-gamma-curve correction
- Author(s)
- Lee, Myunghee, Woo, Jae-Hyuck, Lee, Jae-Goo, Kim, In-Suk, Jun, Young-Hyun, Hwang, Gyoo-Cheol
- Issued Date
- 2011-11-14
- Citation
- 7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011, pp.341 - 344
- Abstract
- Line inversion-based mobile TFT-LCD driver IC with novel quadruple-gamma-curve correction is presented. The driver IC allows for a cost-effective accurate curve correction for multiple gamma values of γ1.0, γ1.8, γ2.2, and γ2.5 by adopting novel voltage-symmetric gray curve synthesis and variable reference resistor-tap biasing schemes. A test chip in a 6 V/0.7-μm triple-well CMOS process indicated a gray voltage error of ±8 mV with gray-to-gray error difference under ±3 mV.
- Publisher
- 7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011
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