Method of aligning an optically active compound contained in a polymer film on a substrate

A method of aligning liquid crystals comprising the steps of:

• (a) forming an optically active compound-containing polymeric film to be used as an aligning layer on a surface of each of a lower substrate and an upper substrate;
• (b) irradiating circularly polarized light on the polymeric film to obliquely align the optically active compound contained relative to the substrate surface to form the aligning layer;
• (c) positioning the lower substrate and the upper substrate opposite to each other such that the polymeric film on the lower substrate is opposite to the polymeric film on the upper substrate;
• and
• (d) pouring a liquid crystal between the substrates, thereby to obliquely align molecules of the liquid crystal due to the optically active compound aligned.

A method of aligning liquid crystals comprising the steps of:

• (a) forming an optically active compound-containing polymeric film to be used as an aligning layer on a surface of each of a lower substrate and an upper substrate;
• (b) positioning the lower substrate and the upper substrate in opposite to each other such that the polymeric film on the lower substrate is opposite to the polymeric film on the upper substrate;
• (c) pouring a liquid crystal between the substrates;
• and
• (d) irradiating circularly polarized light on the polymeric film to obliquely align the optically active compound relative to the substrate surface, thereby to obliquely align molecules of the liquid crystal in accordance with the optically active compound aligned.

A method of fabricating a liquid crystal cell by aligning liquid crystal comprising the steps of:

• (a) forming an optically active compound-containing polymeric film to be used as an aligning layer on a surface of each of a lower substrate and an upper substrate;
• (b) irradiating polarized light on the polymeric film to obliquely align the optically active compound relative to the substrate surface;
• (c) placing the lower and upper substrates such that the lower and upper substrates are opposite to each other with a selected space;
• (d) sealing the lower and upper substrates with a spacer placed between the substrates;
• and
• (e) pouring a liquid crystal between the substrates, thereby to obliquely align the liquid crystal such that the liquid crystal have a certain selected pretilt angle in accordance with the aligning angle of the optically active compound.

A method of fabricating a liquid crystal cell by aligning liquid crystal comprising the steps of:

• (a) forming an optically active compound-containing polymeric film to be used as an aligning layer on a surface of each of a lower substrate and an upper substrate;
• (b) placing the lower and upper substrates such that the lower and upper substrates are opposite to each other with a selected space;
• (c) sealing the lower and upper substrates with a spacer placed between the substrates;
• (d) irradiating circularly polarized light on the polymeric film to obliquely align the optically active compound relative to the substrate surface;
• and
• (e) pouring a liquid crystal between the substrates, thereby to obliquely align the liquid crystal such that the liquid crystal has a certain selected pretilt angle in accordance with the aligning angle of the optically active compound;
• wherein the pretilt angle of the liquid crystal is controlled by the aligning angle of the optically active compound which is controlled by an incident angle of the circularly polarized light.

A method of fabricating a liquid crystal cell by aligning liquid crystal comprises the steps of:

• (a) forming an optically active compound-containing polymeric film to be used as an aligning layer on a surface of each of a lower substrate and an upper substrate;
• (b) placing the lower and upper substrates such that the lower and upper substrates are opposite to each other with a selected space;
• (c) scaling the lower and upper substrates with a spacer placed between the substrates;
• (d) pouring the liquid crystal between the substrates;
• and
• (e) irradiating circularly polarized light on the polymeric film to obliquely align the optically active compound relative to the substrate surface, thereby to obliquely align the liquid crystal such that the liquid crystal has a certain selected pretilt angle in accordance with the aligning angle of the optically active compound,
• wherein the pretilt angle of the liquid crystal is controlled by the aligning angle of the optically active compound which is controlled by an incident angel of the circularly polarized light.