Liquid crystal display, method of manufacturing the same, and apparatus manufacturing the same
View Patent ↗A liquid crystal display, a method for manufacturing the same, and an apparatus for manufacturing the same are provided. A method includes forming a field-generating electrode on a panel, and forming an inorganic alignment layer on the substrate by using atmospheric pressure plasma. The process using the atmospheric pressure plasma to form the inorganic alignment layer is more simplified by omitting the etch steps of the short point area and the pad areas. Also, alignment layers may be formed on the mother glass with various shapes by using one apparatus.
1. A method for manufacturing a liquid crystal display, the method comprising:
forming a field-generating electrode on at least one of a first panel and a second panel;
forming an inorganic alignment layer on the field-generating electrode by using atmospheric pressure plasma, and
forming a liquid crystal layer between the first panel and the second panel.
2. The method of claim 1 , wherein the inorganic alignment layer is formed only on an active area of the first panel.
3. The method of claim 1 , wherein plasma-generating electrodes are moved over at least one of the first panel and the second panel to form the inorganic alignment layer.
4. The method of claim 1 , further comprising:
pre-cleaning a portion of at least one of the first panel and the second panel for depositing the inorganic alignment layer by using atmospheric pressure plasma before forming the inorganic alignment layer.
5. The method of claim 4 , wherein the pre-cleaning process uses at least one gas selected from oxygen (O 2 ), helium (He), and air.
6. The method of claim 1 , further comprising:
post-cleaning the surface of the inorganic alignment layer by using atmospheric pressure plasma after forming the inorganic alignment layer.
7. The method of claim 6 , wherein the post-cleaning process uses at least one gas selected from oxygen (O 2 ), helium (He), and air.
8. The method of claim 1 , wherein an ion beam treatment is executed on surfaces of the inorganic alignment layer after forming the inorganic alignment layer.
9. The method of claim 1 , wherein the inorganic alignment layer includes at least one material selected from amorphous silicon (a-Si), silicon carbide (SiC), silicon nitride (SiN), silicon oxide (SiO X ), and fluorinated diamond-like carbon.
10. The method of claim 9 , wherein the inorganic alignment layer includes amorphous silicon (a-Si),
wherein the amorphous silicon (a-Si) is formed using silane (SiH 4 ), hydrogen (H 2 ), or helium (He).
11. The method of claim 9 , wherein the inorganic alignment layer includes silicon carbide (SiC),
wherein the silicon carbide (SiC) is formed using silane (SiH 4 ), methane (CH 4 ), hydrogen (H 2 ), or helium (He).
12. The method of claim 9 , wherein the inorganic alignment layer includes silicon nitride (SiN),
wherein the silicon nitride (SiN) is formed using silane (SiH 4 ), ammonia (NH 4 ), hydrogen (H 2 ), or helium (He).
13. The method of claim 9 , wherein the inorganic alignment layer includes silicon oxide (SiO x ),
wherein the silicon oxide (SiO x ) is formed using silane (SiH 4 ), oxygen (O 2 ), or helium (He).
14. The method of claim 9 , wherein the inorganic alignment layer includes fluorinated diamond-like carbon,
wherein the fluorinated diamond-like carbon is formed using acetylene (C 2 H 2 ), a fluorine-containing gas such as carbon tetrafluoride (CF 4 ) and sulfur hexafluoride (SF 6 ), or helium (He).
15. The method of claim 1 , further comprising forming a light source outside the first panel.