Patent ID: 6778184
Filing Date: 2004-08-17
Classification: G09G

Abstract:
A color signal correction circuit for correcting a color signal which displays data on each pixel of a display apparatus arranged in a matrix, comprising:a color signal input section for inputting a color signal of N bits (N is a natural number); a color signal data storage section for storing a first color signal corresponding to a predetermined pixel, a second color signal corresponding to a first adjacent pixel which is adjacent to the predetermined pixel, and a third color signal corresponding to a second adjacent pixel which is adjacent to the predetermined pixel at the opposite side with respect to the first adjacent pixel, which are input to the color signal input section; an addition section for adding the second color signal and the third color signal to obtain addition value data; a duplication section for duplicating the first color signal to obtain duplicated color signal data; a first comparison section for subtracting the duplicated color signal data from the addition value data to obtain a difference value; a first LSB determination section for determining an LSB according to the difference value; and a color signal generation section for adding N higher order bits of the duplicated color signal data and the LSB, so as to generate a color signal of (N+1) bits.