Patent ID: 8451200
Filing Date: 2013-05-28
Classification: G09G,H04N

Abstract:
1. An image processing apparatus for carrying out correction processing on an image signal made up of a plurality of bits, said image processing apparatus comprising: a correction processing unit configured to perform gamma correction on an input image signal; and a fine control processing unit configured to establish a plurality of types of correction data in accordance with a plurality of fixed gray-scale levels of the input signal in order to fine-control a voltage-transmittance (V-T) curve, corresponding to an applied voltage by performing computations on said input image signal gamma-corrected by said correction processing unit using the established correction data, wherein said fine control processing unit has banks of rewritable electronic memory elements configured to retain said correction data and the fine control processing unit is selectively operated in response to control signals and further wherein an input signal corrected by gamma correction processing and established correction data are interpolated and the interpolation result is added or subtracted from the input signal and further wherein at least some higher order signal data bits are used for signal correction processing and only lower order data bits are used for signal interpolation such that interpolation value data corresponds to low-order interpolation-use bits and the fine control processing unit receives a bank select signal and a processing range select signal for determining which electronic memory should be used and a determined range for processing.