THRESHOLD VOLTAGE AND IR DROP COMPENSATION OF AN AMOLED PIXEL CIRCUIT WITHOUT VDD LINE

摘要

The present invention relates to a threshold voltage and an IR drop compensation of an AMOLED pixel circuit without a VDD line. The threshold voltage and an IR drop compensation of an AMOLED pixel circuit without a VDD line realizes uniform brightness by compensating for a threshold voltage change and a power voltage drop, removes an existing VDD line, and increases a light emitting region by using a first scan signal line (SCAN1) as a power voltage line.