Organic thin film transistor array panels
An organic thin film transistor (OTFT) array panel includes a substrate, a data line formed on the substrate, a source electrode connected with the data line, a drain electrode, including a portion facing the source electrode, an insulating layer formed on the source electrode and the drain electrode and having an opening and a contact hole, an organic semiconductor positioned in the opening and at least partially contacting the source electrode and the drain electrode, a gate insulator formed on the organic semiconductor, a stopper formed on the gate insulator, a gate line crossing over the data line and including a gate electrode formed on the stopper, and a pixel electrode connected to the drain electrode through the contact hole.
1. An organic thin film transistor (OTFT) array panel, comprising:
a substrate,
a data line formed on the substrate;
a source electrode connected with the data line;
a drain electrode comprising a portion that faces the source electrode;
an insulating layer formed on the source electrode and the drain electrode and having an opening and a contact hole;
an organic semiconductor positioned in the opening and at least partially contacting with the source electrode and the drain electrode;
a gate insulator formed on the organic semiconductor;
a stopper formed on the gate insulator;
a gate line crossing over the data line and comprising a gate electrode formed on the stopper; and
a pixel electrode connected with the drain electrode through the contact hole.
2. The OTFT array panel of claim 1 , wherein the stopper and the pixel electrode comprise the same material.
3. The OTFT array panel of claim 2 , wherein the stopper and the pixel electrode comprise IZO or ITO.
4. The OTFT array panel of claim 3 , wherein the stopper and the pixel electrode are formed in different layers.
5. The OTFT array panel of claim 1 , wherein the source electrode and the drain electrode comprise IZO or ITO.
6. The OTFT array panel of claim 1 , wherein the gate electrode completely covers the stopper.
7. The OTFT array panel of claim 1 , further comprising a storage electrode formed on the layer on which the data line are formed.
8. The OTFT array panel of claim 7 , wherein the drain electrode comprises a portion that at least partially overlaps the storage electrode.
9. The OTFT array panel of claim 8 , further comprising
an interlayer insulating layer formed between the drain electrode and the storage electrode.
10. The OTFT array panel of claim 1 , further comprising a light blocking member positioned at a lower portion of the organic semiconductor and formed on the layer on which the data line are formed.
11. The OTFT array panel of claim 1 , wherein the insulating layer is formed over the entire surface of the substrate, excluding the opening and the contact hole.
12. The OTFT array panel of claim 1 , wherein the insulating layer comprises an organic material.
13. The OTFT array panel of claim 1 , wherein the gate insulator comprises an organic material.
14. The OTFT array panel of claim 1 , further comprising a protection member covering the gate electrode.
15. The OTFT array panel of claim 1 , wherein a surface of the insulating layer is hydrophobic and portions exposed through the opening and the contact hole are hydrophilic.