Line inversion-based mobile TFT-LCD driver IC with accurate quadruple-gamma-curve correction

Line inversion-based mobile TFT-LCD driver IC with accurate quadruple-gamma-curve correction

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 γ 1.0 , γ 1.8 , γ 2.2 , and γ 2.5 by adopting novel voltage-symmetric gray curve synthesis and vari...

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Bibliographische Detailangaben
Hauptverfasser: Jae-Hyuck Woo, Jae-Goo Lee, In-Suk Kim, Young-Hyun Jun, Gyoo-Cheol Hwang, Myung-Hee Lee, Bai-Sun Kong
Format: Tagungsbericht
Sprache:eng
Schlagworte:
1f noise
Generators
Image color analysis
Integrated circuits
Mobile communication
Thin film transistors
Voltage measurement
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Zusammenfassung: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 γ 1.0 , γ 1.8 , γ 2.2 , and γ 2.5 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.
DOI:10.1109/ASSCC.2011.6123583