Organic EL device
View Patent ↗An organic EL device comprising a semiconductor element A having a source electrode, a drain electrode, and a gate electrode, a semiconductor element B having a source electrode, a drain electrode, and a gate electrode connected to the source electrode or the drain electrode of the semiconductor element A, and an organic EL element having a pixel electrode connected to the drain electrode of the semiconductor element B, in which the source electrode and the drain electrode of the semiconductor element A and the gate electrode of the semiconductor element B are set on the same plane.
1. An organic EL device comprising:
a semiconductor element A having a source electrode, a drain electrode, a semiconductor layer and a gate electrode;
a semiconductor element B having a source electrode, a drain electrode, a semiconductor layer and a gate electrode connected to the source electrode or the drain electrode of said element A; and
an organic EL element having a pixel electrode connected to the drain electrode of said element B, wherein
the source electrode and the drain electrode of said element A and the gate electrode of said element B are set on the same plane,
the semiconductor layer of at least one of said element A and said element B is defined within a region at and between the source electrode and the drain electrode of said element A or said element B,
the pixel electrode is placed above said element A and said element B.
2. The organic EL device according to claim 1 , wherein
said element A is a top-gate type TFT and said element B is a bottom-gate type TFT.
3. The organic EL device according to claim 1 , wherein
said element A is a bottom-gate type TFT and said element B is a top-gate type TFT.
4. The organic EL device according to claim 1 , wherein
the semiconductor layer of said element A or said element B contains silicon.
5. The organic EL device according to claim 1 , wherein
the semiconductor layer of said element A or said element B contains an organic semiconducting material.
6. The organic EL device according to claim 1 , wherein
the semiconductor layers of said element A and said element B each contain an organic semiconducting material; and
the organic semiconducting material contained in the semiconductor layer of said element A and the organic semiconducting material contained in the semiconductor layer of said element B are different from each other.
7. An organic EL display in which a plurality of the organic EL devices according to claim 1 are arranged in a matrix state on a single substrate; wherein
a scanning electrode line connected to the gate electrode of each element A and
a common electrode line connected to the source electrode of each element B are parallel to the X axis;
a data electrode line connected to the source electrode of each element A is parallel to the Y axis; and
the X axis and the Y axis bisect each other at right angle.