Patent ID: 7423638
Filing Date: 2008-09-09
Classification: G09G,H01L

Abstract:
1. An organic electroluminescent display (OELD), comprising: an insulation substrate comprising a first region, a second region, a third region, a fourth region, and a fifth region; a silicon layer formed on the insulation substrate; a gate insulation layer formed on the silicon layer; a gate line layer formed on the gate insulation layer; an insulating interlayer layer formed on the gate line layer; a data line layer formed on the insulating interlayer layer; a pixel electrode which is electrically connected to the data line layer and is formed on a portion superimposed with the fourth region of the insulation substrate; an organic electroluminescent (EL) element formed on a portion of the pixel electrode; a first transistor formed by the silicon layer, the gate line layer, and the data line layer which are formed on a portion superimposed with a portion of the third region of the insulation substrate; a second transistor formed by the silicon layer, the gate line layer, and the data line layer which are formed on a portion superimposed with a portion of the second region of the insulation substrate; and a third transistor formed by the silicon layer, the gate line layer, and the data line layer which are formed on a portion superimposed with a portion of the first region of the insulation substrate, wherein a drain electrode of the second transistor and a gate electrode of the second transistor are electrically connected to a gate electrode of the first transistor, and a source electrode of the second transistor is electrically connected to a drain electrode of the third transistor.