| 摘要 |
<p>A technique for suppressing affect of irregularities of transistor characteristics in a signal line drive circuit. The signal line drive circuit includes a first current source circuit (431) arranged in a first latch (416) and a second current source circuit (432) arranged in a second latch (417), so as to correspond to each of signal lines. The first current source circuit has capacity means for converting the video signal current supplied from a video signal constant current source (109) into voltage according to the sampling pulse supplied from the shift register (415) and supply means for supplying current based on the converted voltage. The second current source circuit has capacity means for converting current supplied from the first latch into voltage and supply means for supplying current based on the converted voltage. Thus, current output is performed according to a video signal, not depending on the transistor characteristic.</p> |
