| 摘要 |
In current driving circuit a desired value of a driving current is promptly written in a load of each pixel despite load variations that may occur in each pixel. A constant current source circuit delivers a driving current Idata to a load. An output voltage difference amplifier circuit detects a voltage change produced at a load driving end within a preset time period, and delivers a current or a voltage corresponding to the voltage change during a time period different from the preset time period. The output voltage difference amplifier circuit temporally repeats detection of the voltage change and delivery of the current or the voltage to the load. |
