Liquid crystal display device with a polymer between liquid crystal regions

A liquid crystal display device comprising:

• two substrates facing each other, at least one of the substrates being transparent, electrodes disposed on inside surfaces of the respective substrates;
• and
• a display medium which is provided between the two substrates and formed of polymer walls containing a polymer as their main component and liquid crystal regions containing liquid crystal as their main component;
• wherein the liquid crystal regions are partitioned by the polymer walls and are close to the substrates, portions of the liquid crystal regions close to the substrates being in parallel with the substrates.

A method for manufacturing a liquid crystal display device having a plurality of pixels, comprising the steps of:

• forming an orientation film containing a photopolymerization initiator on at least one of a pair of substrates, two substrates facing each other, at least one of the substrates being transparent, and electrodes being disposed on inside surfaces of the respective substrates;
• subjecting the substrate on which the orientation film is formed to a rubbing treatment in one direction;
• providing a mixture containing a photopolymerizable compound and a liquid crystal material between the pair of substrates after the rubbing treatment;
• and
• forming a display medium having polymer walls containing a polymer as their main component and liquid crystal regions containing liquid crystal as their main component by curing the photopolymerizable compound.

A method for manufacturing a liquid crystal display device having a plurality of pixels, comprising the steps of:

• forming a thin film pattern containing a photopolymerization initiator on one surface of at least one of a pair of substrates, the substrates respectively having electrodes and at least one of the substrates being transparent;
• providing a mixture containing a polymerizable compound and a liquid crystal material between the pair of substrates, at least one of the substrates having the thin film pattern, thereby forming a cell;
• and
• forming a display medium between the substrates by curing the polymerizable compound, the display medium having polymer walls containing a polymer as their main component and liquid crystal regions containing liquid crystal as their main component.

A method for manufacturing a liquid crystal display device having a plurality of pixels, comprising the steps of:

• providing a mixture between a pair of substrates facing each other, thereby forming a cell, at least one of the substrates being transparent, electrodes being disposed on inside surfaces of the respective substrates, the mixture containing a liquid crystal material, a photopolymerizable compound, a photopolymerization initiator, and a radical generating agent;
• irradiating light to the mixture to cause a phase separation, thereby obtaining a state in which liquid crystal regions are dispersed in the polymer walls;
• and
• thermally decomposing the radical generating agent by heating the display medium.