| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a current drive circuit capable of supplying a desired current to a light-emitting element in each pixel stably and accurately irrespective of the characteristic variations of active elements in the pixel, and a display and a pixel circuit. <P>SOLUTION: Each pixel is composed of a receiving transistor TFT3 for receiving a signal current Iw from a data line data, a converting transistor TFT1 for temporarily converting the current level of the received signal current Iw to a voltage level and holding the voltage level, a transistor TFT4 for shorting the source and drain of the TFT1 during a writing period, and a drive part for converting the voltage signal held by the converting transistor TFT1 into a current signal and outputting a driving current. The drive part shares the converting transistor on a time-division basis with a conversion part, and disconnects the converting transistor TFT1 from a reception part after completing the conversion of the signal current for driving to supply the driving current through a channel while the held voltage level is applied to the gate of the converting transistor TFT1. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
