Liquid crystal display device and method for manufacturing the same
AssigneeSharp Kabushiki Kaisha
InventorsKohichi Fujimori, Tokihiko Shinomiya, Shuichi Kohzaki, Yutaka Ishii
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Abstract
This invention provides a liquid crystal display device including a display medium layer containing at least a liquid crystal material sandwiched between a pair of substrates. In this liquid crystal display device, at least one of the pair of substrates is a plastic substrate having first irregularities on a surface facing the display medium layer, and a polymer wall of a photocurable resin is formed in the display medium layer.
Claims23
A liquid crystal display device comprising a display medium layer including at least a liquid crystal material sandwiched between a pair of substrates,
- wherein at least one of the pair of substrates is a plastic substrate having first irregularities on a surface facing the display medium layer, and
- a plurality of polymer walls of a photocurable resin is formed in the display medium layer,
- wherein the first irregularities function as a spacer, and wherein the first irregularities are formed as stripe-shaped convex portions in areas excluding pixel regions, and the plurality of polymer walls of the photocurable resin are disposed in areas excluding the pixel regions and extend in a direction perpendicular to the stripe-shaped convex portions of the first irregularities.
A method for manufacturing a liquid crystal display device including a display medium layer including at least a liquid crystal material sandwiched between a pair of substrates, at least one of the substrates being a plastic substrate having first irregularities on a surface facing the display medium layer, and a plurality of polymer walls of a photocurable resin being formed in the display medium layer, the method comprising the steps of:
- forming the first irregularities as a plurality of convex portions on one of the pair of substrates continuously from a surface of the substrate;
- opposing the pair of substrates with the first irregularities facing the other substrate;
- injecting a material for the display medium layer including at least a liquid crystal material, a photocurable resin and a photoinitiator into a gap between the pair of substrates;
- and
- causing phase separation between the liquid crystal material and the photocurable resin by irradiating the material for the display medium layer, wherein the first irregularities function as a spacer, and wherein the first irregularities are formed as stripe-shaped convex portions in areas excluding pixel regions, and the plurality of polymer walls of the photocurable resin are disposed in areas excluding the pixel regions and extend in a direction perpendicular to the stripe-shaped convex portions of the first irregularities.
A method for manufacturing a liquid crystal display device including a display medium layer including at least liquid crystal material sandwiched between a pair of substrates, at least one of the substrates being a plastic substrate, the method comprising the steps of:
- forming the plastic substrate so as to have first irregularities on one surface and second irregularities on the other surface;
- forming the display medium layer between the pair of substrates after opposing the substrates against each other and
- providing the irregularities on at least one surface of the plastic substrate with an optical function.
Dependencies are inferred from the claim text.