Device to process RGB signals for digital controlled display, plasma display with color overload correction

摘要

Gamma pre-distorted color component signals (Rs,Gs,Bs) are input to circuitry to correct distortion (2). Correction unit reduces color over saturation/overload by applying small signal amplitudes. Corrected data (R,G,B) are fed to quantizer (3). Quantized color component signals are fed to correction unit (4) which provides corrected, quantized color component signals to control display. After quantizing (3) the correction unit (4) sets R, G or B signal to 1 if one signal has value 0 and at least one of other two signals has value 1. It sets R, G or B signal to 0 if R, G or B signal has value 1 and other two have value 0 after quantizing.