Rubbing method of liquid crystal display device
View Patent ↗A rubbing method, i.e., a method of forming an alignment layer, of a liquid crystal display device includes providing a substrate, applying an alignment layer on the substrate, applying a magnetic field to the alignment layer by a magnetic field generator and firing the alignment layer.
1. A method of forming an alignment layer of a liquid crystal display device, the method comprising:
providing a substrate;
applying an alignment layer material onto the substrate;
applying a magnetic field to directionally align the alignment layer material by a magnetic field generator; and
firing the directionally aligned alignment layer material to fix a shape of the alignment layer.
2. The method of claim 1 , wherein the alignment layer material includes a magnetic field component.
3. The method of claim 1 , wherein the alignment layer material comprises a magneto-rheological fluid.
4. The method of claim 1 , wherein applying the magnetic field to the alignment layer comprises passing the substrate under a magnetic field generator that has a fixed position.
5. The method of claim 4 , wherein the substrate is moved by being rotated at a certain angle.
6. The method of claim 5 , wherein the rotation angle of the substrate determines the alignment direction of the alignment layer material.
7. A method of forming an alignment layer for a liquid crystal display device, the method comprising:
providing a substrate;
applying an alignment liquid containing a magneto-rheological fluid onto the substrate to form an alignment layer;
rotating the substrate on which the alignment layer has been applied at a certain angle;
passing the substrate under a magnetic field generating device by moving the substrate and forming a valley having a rubbing angle θ 1 to determine a pre-tilt angle of liquid crystal molecules by exposing the alignment layer to a magnetic field; and
firing the alignment layer exposed to the magnetic field to fix a shape of the alignment layer.
8. The method of claim 7 , wherein the alignment liquid contains a magneto-rheological material and the rubbing angle θ 1 is determined by the amount of the contained magneto-rheological material.
9. The method of claim 7 , wherein the rubbing angle θ 1 is determined by the intensity of the magnetic field.
10. The method of claim 7 , wherein the rubbing angle θ 1 is determined by speed of movement of the substrate.
11. The method of claim 1 , wherein the substrate is a color filter substrate or a thin film transistor array substrate of a display device.
12. The method of claim 7 , wherein the substrate is a color filter substrate or a thin film transistor array substrate of a display device.