| 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: An RGB signal is supplied to an M value calculation circuit 12. The M value calculation circuit 12 determines the M value to determine the degree of effect of a W (white) dot from the degree of a change in the RGB signal. An RGB to RGBW conversion circuit 10 performs RGB to RGBW conversion by using the M value supplied from the M value calculation circuit 12. The electric power consumption is reduced while the resolution is maintained by reducing the rate of use of W in the edge portion etc., of the input RGB signal and increasing the rate of use of W in the flat portion. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
