Liquid crystal display device and manufacturing method thereof

A liquid crystal display device comprising:

• a TFT substrate having a pixel electrode and a first alignment film;
• a counter substrate disposed opposite to the TFT substrate and having an second alignment film;
• and
• a liquid crystal disposed between the first alignment film and the second alignment film,
• wherein a topmost surface layer of the first photo alignment film has liquid crystal alignment regulating force, and optical anisotropy of the first photo alignment film is 0.1 or less in an order parameter.

A manufacturing method of a liquid crystal display device including a TFT substrate having a pixel electrode and a TFT and formed with an alignment film;

• a counter substrate disposed opposite to the TFT substrate and formed with an alignment film on the TFT substrate side;
• and a liquid crystal sandwiched between the alignment film of the TFT substrate and the alignment film of the counter substrate, the method comprising the steps of:
• preparing the TFT substrate having the pixel electrode and the TFT;
• forming the alignment film on the TFT substrate or the counter substrate;
• applying a polarized ultraviolet ray to the alignment film and then oxidizing the alignment film;
• attaching the TFT substrate attached with the alignment film provided with alignment regulating force to the counter substrate;
• and
• filling a liquid crystal between the TFT substrate and the counter substrate in the attaching step or after the attaching step.