Thin film transistor and display device using the same and method for manufacturing the same
View Patent ↗A thin film transistor according to an example embodiment includes: a substrate body; a semiconductor layer formed on the substrate body and comprising a polycrystalline silicon film having a surface resistance from about 2000 ohm/sq to about 8000 ohm/sq; and a source electrode and a drain electrode each contacted with the semiconductor layer and comprising a metallic material having a resistance from about 350 to about 2000 ohm.
1. A thin film transistor, comprising:
a substrate body;
a semiconductor layer formed on the substrate body and comprising a polycrystalline silicon film having a surface resistance from about 2000 ohm/sq to about 8000 ohm/sq; and
a source electrode and a drain electrode, each in contact with the semiconductor layer and comprising a metallic material having a resistance from about 350 to about 2000 ohm.
2. The thin film transistor of claim 1 , wherein:
the semiconductor layer in contact with each of the source electrode and the drain electrode is in an inactivated state.
3. The thin film transistor of claim 2 , wherein:
the metallic material has a work function from about 4.1 eV to about 4.5 eV.
4. The thin film transistor of claim 1 , wherein: the substrate body comprises a plastic material.
5. A display device, comprising:
a substrate body;
a semiconductor layer positioned on the substrate body and comprising a polycrystalline silicon film having a surface resistance from about 2000 ohm/sq to about 8000 ohm/sq; and
a source electrode and a drain electrode each in contact with the semiconductor layer and comprising a metallic material having a resistance from about 350 to about 2000 ohm.
6. The display device of claim 5 , wherein:
the semiconductor layer in contact with each of the source electrode and the drain electrode is in an inactivated state.
7. The display device of claim 5 , wherein:
the metallic material has a work function from about 4.1 eV to about 4.5 eV.
8. The display device of claim 5 , wherein:
the substrate body comprises a plastic material.
9. The display device of claim 8 , further comprising:
an organic light emitting diode formed on the substrate body.
10. The display device of claim 8 , further comprising:
a liquid crystal layer formed on the substrate body.