Method and apparatus for manufacturing an LCD
View Patent ↗A method of manufacturing an LCD comprising, preparing a liquid crystal panel which comprises a substrate assembly and a polarizing plate, wherein the polarizing plate is attached to the substrate assembly, disposing a gas injecting part towards the plate surface of the liquid crystal panel, while the gas injecting part is exposed to atmospheric conditions, and applying a pressure to the plate surface of the liquid crystal panel by injecting gas through the gas injecting part. With this configuration, the present invention provides a method to remove bubbles between the polarizing plate and liquid crystal panel without the use of a chamber.
1. A method of manufacturing an LCD comprising:
preparing a liquid crystal panel which comprises at least one substrate and at least one polarizing plate, wherein the polarizing plate is attached to the substrate and is separated from a gas injecting part;
disposing the liquid crystal panel having the polarizing plate attached to the substrate adjacent the gas injecting part after preparing the liquid crystal panel;
disposing the gas injecting part towards a surface of the polarizing plate after disposing the liquid crystal panel, while the gas injecting part is exposed to atmospheric conditions; and
applying a pressure to the surface of the polarizing plate by injecting gas through the gas injecting part after disposing the gas injecting part.
2. The method according to claim 1 , wherein the liquid crystal panel and the gas injecting part move relative to each other, while the gas is injected.
3. The method according to claim 1 , wherein the injected gas is preheated.
4. The method according to claim 3 , wherein the temperature of the preheated gas is 40-80° C.
5. The method according to claim 1 , wherein the gas injecting part comprises a plurality of nozzles to inject the gas, which are disposed opposite each other while the liquid crystal panel is disposed therebetween.
6. The method according to claim 1 , wherein a distance between the gas injecting part and the liquid crystal panel is 10-20 μm.
7. The method according to claim 1 , wherein the pressure applied by the injecting gas is 0.1-6.0 kgf/cm 2 .
8. The method according to claim 1 , wherein the gas is initially injected to a central region in the liquid crystal panel and is later injected to an outer region of the plate surface of the liquid crystal panel.
9. A method of manufacturing an LCD comprising:
preparing a liquid crystal panel by attaching at least one polarizing plate to at least one substrate, wherein the polarizing plate is separated from a gas injecting part;
disposing the liquid crystal panel adjacent the gas injecting part after preparing the liquid crystal panel;
disposing the gas injecting part towards a surface of the polarizing plate after disposing the liquid crystal panel; and
applying a pressure to the surface of the polarizing plate by injecting gas through the gas injecting part after disposing the gas injecting part.
10. The method according to claim 9 , wherein disposing the gas injecting part towards the surface of the polarizing plate occurs while the gas injecting part is exposed to atmospheric conditions.
11. The method according to claim 9 , further comprising heating the injected gas to a temperature of 40-80° C.
12. The method according to claim 9 , wherein the gas injecting part comprises a plurality of nozzles adapted to inject the gas toward the surface of the polarizing plate.
13. The method according to claim 9 , wherein a distance between the gas injecting part and the liquid crystal panel is 10-20 μm.
14. The method according to claim 9 , wherein the pressure applied by the injecting gas is 0.1-6.0 kgf/cm 2 .
15. The method according to claim 9 , wherein the gas is initially injected to a central region of the liquid crystal panel and is later injected to an outer region of the plate surface of the liquid crystal panel.