| 摘要 |
A reference voltage control circuit is provided and includes a reference voltage data generator circuit for generating reference voltage data PD from brightness data BD, and a selector for selecting, in accordance with a timing control signal Tc, a reference voltage data CD and digital R, G, and B data. By varying the reference voltage level in accordance with the brightness level, the DC component of the voltage signal obtained by clamping the reference voltage level is controlled. Furthermore, when controlling the brightness for every R, G, and B color, the reference voltage data CD (CDR, CDG, CDB) for the R, G, and B colors are generated by adding the brightness data BD and the sub-brightness data SB (SBR, SBG, SBB) for every R, G, and B color.
|
