| 摘要 |
<P>PROBLEM TO BE SOLVED: To convert input RGB data into R'G'B'W data without impairing the gradation thereof as much as possible. <P>SOLUTION: In a display panel 12, one pixel is constituted with sub-pixels of RGBW(red, green, blue and white). In an RGB to R'G'B'W conversion section 10, conversion is performed in a condition that the use ratio of W is <100% and the bit width of the input RGB data is larger than that of the R'G'B'W data. In the RGB to R'G'B'W conversion section 10, values of R'G'B' and a value of W are determined so that an absolute value of a sum of values in which weight is multiplied with difference of each input RGB data from each RGB component in the converted R'G'B'W data, may become minimum. <P>COPYRIGHT: (C)2011,JPO&INPIT |
