Liquid crystal display device and repairing method thereof
View Patent ↗An LCD device and a repairing method thereof to prevent gravity defects by forming a dual seal pattern in a non-display area of an LCD panel and storing surplus liquid crystal in an area between the dual seal patterns, which includes an LCD panel including first and second substrates bonded to each other and having a display and non-display areas, first and second seal patterns spaced apart from each other in the non-display area and surrounding the display area to define a buffer space therebetween, and a metal pattern formed on the first substrate corresponding to the first seal pattern. In the method, the metal pattern is heat treated to form a path for surplus liquid crystal to flow to the buffer space.
1. A repairing method for an LCD device, the method comprising:
providing a first substrate;
forming first and second seal patterns on the first substrate and defining a buffer space therebetween;
forming a first metal pattern on the first substrate corresponding with the first seal pattern;
bonding a second substarte to the first and second seal patterns to form a display area;
applying laser energy to the first metal pattern to form a first path for the liquid crystal to flow to the buffer space; and
flowing excess liquid crystal dispensed on the LCD panel to the buffer space through the path.
2. The repairing method of claim 1 further comprising activating the LCD panel to smoothly flow the excess liquid crystal to the buffer space.
3. The repairing method of claim 2 , wherein activating the LCD panel comprises heat treating the LCD panel at a temperature of about 110 to about 130° C. for about 5 to about 6 hours.
4. The repairing method of claim 2 , wherein activating the LCD panel comprises heat treating the LCD panel at a temperature of about 50 to about 70° C. for about 12 to about 24 hours,.
5. The repairing method of claim 2 , wherein activating the LCD panel comprises heat treating with a laser.
6. The repairing method of claim 1 , wherein applying laser energy to the first metal pattern comprises laser irradition of the first metal pattern.
7. The repairing method of claim 1 , further comprising the step of forming:
dividers that divide the buffer space into a plurality of parts before the step of bonding the second substrate to the first and second seal patterns.
8. The repairing method of claim 7 further comprising the step of forming: second metal patterns below the dividers, before the step of bonding the second substrate to the first and second seal patterns;
laser irradiating the second metal patterns to form a second path according to the amount of surplus liquid crystal in the LCD panel when the laser energy is applied to the first metal pattern; and
flowing the surplus liquid crystal of the LCD panel to the buffer space through the second path when the excess liquid crystal is flowed to the buffer spacer through the first path.
9. A method for fabricating an LCD device comprising:
providing a first substrate:
forming first and second seal pattern on the first substrate and defining a buffer region therebetween;
forming a metal pattern on the first substrate substantially corresponding with the first seal pattern;
bonding a second substrate to the first and second seal patterns to form a display area; and
heating the metal pattern to form a path connecting the buffer region with the display area.
10. The method of claim 9 , wherein heating the metal pattern comprises laser irradiation of the metal pattern.