| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce electric power consumption, while suppressing the degradation in the resolution of an OLED display device. <P>SOLUTION: A RGB signal is supplied to a M value calculation circuit 12. The M value calculation circuit 12 determines the M value to determine the degree of effect of white dots from the degree of change in the RGB signal. Then, RGB to RGBW conversion circuit 10 performs RGB to RGBW conversion, by using the M value supplied from the M value calculation circuit 12. Power consumption is reduced; while the resolution is maintained so that the use rate of W is reduced in an edge part of an input RGB signal, or the like, and the use rate of W is increased in a flat part having few changes. <P>COPYRIGHT: (C)2011,JPO&INPIT |
