Method of manufacturing a liquid crystal display device
View Patent ↗An LCD device and a method for manufacturing the same is disclosed, the method including preparing a liquid crystal cell including: a first substrate, a second substrate, a liquid crystal layer formed between the first and second substrates, and a sealant surrounding the liquid crystal layer and having a predetermined portion corresponding a cutting line; forming an inlet for the inflow and outflow of liquid crystal in the sealant; regulating the amount of liquid crystal through the inlet; and sealing the inlet.
1. A method for manufacturing an LCD device comprising the following sequence:
(1) preparing a liquid crystal cell including a first substrate, a second substrate, a liquid crystal layer between the first and the second substrates, and a sealant contiguously surrounding the liquid crystal layer, wherein the liquid crystal layer is enclosed by the sealant and the sealant has a side coinciding with a cutting line;
(2) forming an inlet for an inflow and an outflow of liquid crystal in the sealant by removing only a partial width of a predetermined portion of the side of the sealant coinciding with the cutting line using a laser;
(3) regulating an amount of liquid crystal through the inlet; and
(4) sealing the inlet,
wherein an entire side of the sealant coinciding with the cutting line is straight.
2. The method of claim 1 , wherein preparing the liquid crystal cell includes:
preparing the first and the second substrates;
forming the sealant on one of the first and the second substrates;
dispensing a predetermined amount of liquid crystal onto any one of the first and the second substrates; and
bonding the first and the second substrates to each other.
3. The method of claim 1 , wherein removing the sealant material in the predetermined portion includes completely removing the sealant material in the predetermined portion.
4. The method of claim 1 , wherein the process of forming the inlet includes providing the remaining sealant that is apart from the first or second substrate.
5. The method of claim 1 , wherein the process of removing the sealant in the predetermined portion includes forming the inlet of a thin film type by decreasing the width in the predetermined portion of the sealant.
6. The method of claim 5 , wherein the inlet of the thin film type is formed with a width that opens by pressing out the liquid crystal provided in the liquid crystal cell in a pressurizing process.
7. The method of claim 6 , wherein the inlet of the thin film type is formed within a range between 0.25 mm and 0.6 mm.
8. The method of claim 1 , wherein regulating the amount of liquid crystal includes discharging an excess amount of liquid crystal inside the liquid crystal cell.
9. The method of claim 8 , wherein discharging the excess amount of liquid crystal inside the liquid crystal cell includes applying a pressure to the liquid crystal cell.
10. The method of claim 9 , wherein the process of applying the pressure to the liquid crystal cell includes popping the inlet of the sealant.
11. The method of claim 1 , wherein regulating the amount of liquid crystal includes supplying a predetermined amount of liquid crystal into the liquid crystal cell.
12. The method of claim 1 , wherein sealing the inlet includes providing a finish to the inlet and hardening the finish.
13. The method of claim 1 , further comprising:
performing an inspection for determining whether the amount of liquid crystal inside the liquid crystal cell is insufficient or excessive.
14. The method of claim 13 , wherein the inspection is performed by macrography.