Polymer-wall LCD having liquid crystal molecules having a plane-symmetrical bend orientation

A method for producing a liquid crystal display device comprising:

• a pair of electrode substrates including a plurality of pixels arranged in a matrix shape, at least one of the electrode substrates being transparent;
• a polymer wall including unit walls, each unit wall corresponding to one of the plurality of pixels;
• and a liquid crystal layer at least partially partitioned by the polymer wall and including liquid crystal regions between the pair of electrode substrates, each liquid crystal region corresponding to one of the plurality of pixels, liquid crystal molecules in the liquid crystal regions having a plane-symmetrical bend orientation with respect to a plane taken in the middle of and in parallel to the electrode substrates
• wherein the method comprises the steps of:
• injecting a mixture of a liquid crystal material, a liquid crystalline compound having a polymerizable functional group within molecules thereof, a polymerizable compound, and a photopolymerization initiator between the pair of electrode substrates, at least one of surfaces of the electrode substrates being subjected to a rubbing treatment;
• and
• irradiating a liquid crystal cell including the pair of electrode substrates and the mixture with light having a regular spatial distribution of intensities of high and low so as to correspond to the plurality of pixels, while applying at least one of an electric field and a magnetic field, whereby liquid crystal and a polymer material are phase-separated through a photopolymerization reaction so as to form the liquid crystal layer and the polymer wall, respectively.

A method for producing a liquid crystal display device comprising a display medium including a pair of opposing electrode substrates, a liquid crystal layer interposed between the pair of electrode substrates, and a polymer layer,

• wherein liquid crystal molecules in the liquid crystal layer have a bend orientation so as to be plane-symmetrical with respect to a plane taken in the middle of and in parallel to the electrode substrates,
• wherein the method comprises the steps of:
• injecting a mixture of 0.1% to 5% by weight of a polymer cross-linkable material including a liquid crystalline polymerizable compound having a functional group in molecules thereof and a liquid crystal material between the pair of electrode substrates, at least one of the electrode substrates being transparent;
• and
• phase-separating the liquid crystal layer and the polymer layer by applying at least one of light energy and heat energy to the mixture while stabilizing the bend orientation of the liquid crystal molecules by applying at least one of an electric field and a magnetic field.

A method for producing a liquid crystal display device comprising a display medium including a pair of opposing electrode substrates, a liquid crystal layer interposed between the pair of electrode substrates, at least one of the electrode substrates being transparent, and a polymer layer, where liquid crystal molecules in the liquid crystal layer have an initially unstable orientation, comprising the steps of:

• injecting a mixture of a polymer cross-linkable material including a liquid crystalline polymerizable compound and a liquid crystal material between the pair of electrode substrates;
• phase-separating the liquid crystal layer and the polymer layer by applying at least one of light energy and heat energy to the mixture while initially applying at least one of an electric field and a magnetic field to stabilize the initial unstable orientation of liquid crystal molecules using the polymer layer formed as a result of the phase separation process;
• removing application of the at least one of the electric and magnetic fields;
• and
• maintaining the stabilized orientation of the liquid crystal molecules after the at least one of the electric and magnetic fields is removed.