Electrowetting display panel and method of manufacturing the same
An electrowetting display panel includes an array substrate, a cover substrate, an electrowetting layer, and a hydrophobic pattern. The array substrate includes a display area and a peripheral area surrounding the display area and the cover substrate faces the array substrate. The electrowetting layer is disposed between the array substrate and the cover substrate and includes a polar fluid as a first fluid and a non-polar fluid as a second fluid. The hydrophobic pattern is disposed in the peripheral area.
1. An electrowetting display panel comprising:
an array substrate including a display area and a peripheral area surrounding the display area;
a cover substrate facing the array substrate;
an electrowetting layer disposed between the array substrate and the cover substrate and including a polar fluid as a first fluid and a non-polar fluid as a second fluid; and
a hydrophobic pattern disposed in the peripheral area.
2. The electrowetting display panel of claim 1 , wherein the hydrophobic pattern has a closed-loop shape surrounding the display area.
3. The electrowetting display panel of claim 2 , wherein the hydrophobic pattern comprises one of an alkyl group-containing compound, a fluorine-containing compound, and a silicon nano-wire having an oxygen-adsorbed surface.
4. The electrowetting display panel of claim 3 , wherein the hydrophobic pattern and the first fluid have a contact angle equal to or greater than about 150 degrees.
5. The electrowetting display panel of claim 3 , wherein the array substrate comprises:
a first base substrate including a plurality of pixel areas; and
a partition wall disposed between the pixel areas, wherein the hydrophobic pattern has a thickness smaller than a thickness of the partition wall.
6. The electrowetting display device of claim 5 , wherein the thickness of the hydrophobic pattern is in a range of about 2 micrometers to about 10 micrometers.
7. The electrowetting display device of claim 2 , wherein the hydrophobic pattern comprises a mixture of one of a heat-curable resin and a light-curable resin and one of an alkyl-containing compound, a fluorine-containing compound and a silicon nano-wire having an oxygen-adsorbed surface.
8. The electrowetting display device of claim 7 , wherein the hydrophobic pattern and the first fluid have a contact angle equal to or greater than about 110 degrees.
9. The electrowetting display device of claim 2 , further comprising a sealing pattern having a closed-loop shape to surround the display area, wherein the hydrophobic pattern is disposed between the display area and the sealing pattern.
10. The electrowetting display device of claim 9 , wherein the hydrophobic pattern comprises a mixture of one of a heat-curable resin and a light-curable resin and one of an alkyl-containing compound, a fluorine-containing compound and a silicon nano-wire having an oxygen-adsorbed surface.
11. The electrowetting display device of claim 10 , wherein the hydrophobic pattern and the first fluid have a contact angle equal to or greater than about 110 degrees.
12. The electrowetting display device of claim 9 , wherein the hydrophobic pattern comprises one of a carbon nanotube sponge and a hydrophobic polymer compound.
13. The electrowetting display device of claim 12 , wherein the hydrophobic pattern and the first fluid have a contact angle equal to or greater than about 110 degrees.
14. A method of manufacturing an electrowetting display panel, comprising:
preparing an array substrate including a display area and a peripheral area surrounding the display area;
disposing a hydrophobic pattern in the peripheral area;
preparing a cover substrate to face the array substrate;
disposing an electrowetting layer including a polar fluid as a first fluid and a non-polar fluid as a second fluid in a space defined by the array substrate and the hydrophobic pattern; and
coupling the array substrate to the cover substrate.
15. The method of claim 14 , wherein the hydrophobic pattern comprises a mixture of one of a heat-curable resin and a light-curable resin and one of an alkyl-containing compound, a fluorine-containing compound and a silicon nano-wire having an oxygen-adsorbed surface.
16. The method of claim 15 , wherein the hydrophobic pattern and the first fluid have a contact angle equal to or greater than about 150 degrees.
17. The method of claim 14 , wherein the array substrate comprises:
a first base substrate that including a plurality of pixel areas; and
a partition wall disposed between the pixel areas, and
the hydrophobic pattern has a thickness smaller than a thickness of the partition wall.
18. The method of claim 14 , wherein the hydrophobic pattern comprises a mixture of one of a heat-curable resin and a light-curable resin and one of an alkyl-containing compound, a fluorine-containing compound and a silicon nano-wire having an oxygen-adsorbed surface.
19. The method of claim 18 , wherein the hydrophobic pattern and the first fluid have a contact angle equal to or greater than about 110 degrees.
20. The method of claim 14 , further comprising forming a sealing pattern having a closed-loop shape surrounding the display area, wherein the hydrophobic pattern is disposed between the display area and the sealing pattern.
21. The method of claim 20 , wherein the hydrophobic pattern comprises a mixture of one of a heat-curable resin and a light-curable resin and one of an alkyl-containing compound, a fluorine-containing compound and a silicon nano-wire having an oxygen-adsorbed surface.
22. The method of claim 20 , wherein the hydrophobic pattern comprises one of a carbon nanotube sponge and a hydrophobic polymer compound.