Liquid crystal device and projector
A liquid crystal device includes a substrate, a base body that is disposed opposing the substrate, a liquid crystal layer that is held between the substrate and the base body, an inorganic alignment film that is provided between the liquid crystal layer and the substrate or the base body, and a protection film that is provided between the inorganic alignment film and the liquid crystal layer, the inorganic alignment film has a plurality of grooves that are hollowed toward the surface on the opposite side of the liquid crystal layer from the surface on the liquid crystal layer side, and the protection film has a cave-in shape toward the opposite side to the liquid crystal layer from the liquid crystal layer side in at least one portion of portions corresponding to the plurality of grooves.
1. A liquid crystal device comprising:
a substrate;
a base body that is disposed opposing the substrate;
a liquid crystal layer that is held between the substrate and the base body;
an inorganic alignment film that is provided between the liquid crystal layer and the substrate or the base body; and
an inorganic protection film that is provided between the inorganic alignment film and the liquid crystal layer,
wherein the inorganic alignment film has a plurality of grooves that are hollowed toward the surface on the opposite side of the liquid crystal layer from the surface on the liquid crystal layer side,
wherein the inorganic protection film has a cave-in shape toward the opposite side to the liquid crystal layer from the liquid crystal layer side in at least one portion of portions corresponding to the plurality of grooves, and
wherein the inorganic protection film comprises any of a polysiloxane-based vertical alignment material, silicon oxide, silicon nitride, and aluminum oxide.
2. The liquid crystal device according to claim 1 ,
wherein the inorganic alignment film includes a plurality of columns that are inclined to the normal line direction of a surface of the substrate or the base body, and
wherein, in the inclination, when an inclination direction as viewed from the top in the normal line direction of the surface of the substrate or the base body is set to be a first direction, the plurality of grooves are formed in a second direction intersecting with the first direction.
3. The liquid crystal device according to claim 2 , wherein the plurality of grooves are hollows which are inclined in the same direction as the inclination direction of the plurality of columns with respect to the normal line direction of the substrate or the base body.
4. The liquid crystal device according to claim 1 , wherein the inorganic protection film gets into the plurality of grooves and thereby reduces the depths of the hollows.
5. The liquid crystal device according to claim 1 , further comprising:
a step portion on the surface of the substrate or the base body on the liquid crystal layer side,
wherein the plurality of grooves are formed in a portion corresponding to the step portion.
6. The liquid crystal device according to claim 5 ,
wherein an electrode is further formed on the surface of the substrate or the base body on the liquid crystal layer side, and
wherein the step portion is formed on the surface of the electrode on the liquid crystal layer side.
7. The liquid crystal device according to claim 1 , wherein the inorganic protection film is formed using a liquid phase film forming method.
8. The liquid crystal device according to claim 1 , wherein the inorganic alignment film is formed using an oblique vapor deposition method.
9. A projector comprising the liquid crystal device according to claim 1 .