Process for producing a phase difference control component and liquid crystal display device

A process for producing a phase difference control component, comprising a base material and a phase difference control layer formed of a fixed liquid crystal material provided on the base material through an aligning film, the process comprising the steps of:

• forming an unaligned aligning film on a base material;
• applying polarized light to the unaligned aligning film from the vertical direction to the base material to form a photo-aligned aligning film by a photoalignment method;
• providing a liquid crystal material on the photo-aligned aligning film to form a coating film;
• aligning the liquid crystal material in such a way that an angle of molecules of the liquid crystal material, present at an interface between the aligning film and the coating film, to the base material is substantially 0 (zero) degrees;
• and
• curing the liquid crystal material to form the phase difference control layer,
• wherein the photo-aligned aligning film is photodimerization type formed of polyvinyl cinnamate and the base material comprises triacetylcelluloses or glass.

A display device comprising a phase difference control component, said phase difference control component comprising:

• a base material;
• and
• a phase difference control layer formed of a fixed liquid crystal material provided on said base material through a photo-aligned aligning film,
• wherein the photo-aligned aligning film develops a liquid crystal structure in which liquid crystal molecules, present at the interface of the photo-aligned aligning film and the phase difference control layer, are aligned at a pretilt angle of substantially 0 degree, and
• wherein the photo-aligned aligning film is photodimerization type formed of polyvinyl cinnamate.

A display device comprising a phase difference control component and a color filter, said phase difference control component comprising:

• a base material;
• and
• a phase difference control layer formed of a fixed liquid crystal material provided on said base material through a photo-aligned aligning film,
• wherein the photo-aligned aligning film develops a liquid crystal structure in which liquid crystal molecules, present at the interface of the photo-aligned aligning film and the phase difference control layer, are aligned at a pretilt angle of substantially 0 degree,
• wherein said phase difference control component is stacked directly on the color filter in such a way that the color filter is disposed against the base material of said phase difference control component, and
• wherein the photo-aligned aligning film is photodimerization type formed of polyvinyl cinnamate.