Electro-optical device with ion-adsorbing adsorption film in contact with sealing material and electronic apparatus having the same
A liquid crystal device includes: an element substrate; a counter substrate disposed opposite to the element substrate; a sealing material disposed between the element substrate and the counter substrate; and a liquid crystal layer disposed on an inner side of the sealing material and containing liquid crystal. The element substrate includes an alignment film configured to align the liquid crystal and an ion-adsorbing first adsorption film disposed in contact with the sealing material. The alignment film includes a first vapor-deposited film and a second vapor-deposited film disposed between the first vapor-deposited film and the liquid crystal layer. The second vapor-deposited film and the first adsorption film include a column of which a long axis direction intersects a thickness direction of the liquid crystal layer. A thickness of the first adsorption film is thicker than a thickness of the second vapor-deposited film.
1. An electro-optical device comprising:
a first substrate;
a second substrate disposed opposite to the first substrate, and including a partition portion surrounding a display region;
a sealing material disposed between the first substrate and the second substrate; and
a liquid crystal layer disposed on an inner side of the sealing material and containing liquid crystal; wherein
the first substrate includes
a first alignment film configured to align the liquid crystal and
an ion-adsorbing first adsorption film disposed in contact with the sealing material and has a frame shape surrounding outside the partition portion in plan view,
the first alignment film includes
a first vapor-deposited film and
a second vapor-deposited film disposed between the first vapor-deposited film and the liquid crystal layer,
the second vapor-deposited film and the first adsorption film include a column of which a long axis direction intersects a thickness direction of the liquid crystal layer,
a thickness of the first adsorption film is thicker than a thickness of the second vapor-deposited film, and
an end of the first alignment film is disposed on an inner end of the first adsorption film.
2. The electro-optical device according to claim 1 , wherein the sealing material is in contact with the first substrate via the first adsorption film.
3. The electro-optical device according to claim 1 , wherein
the column of the first adsorption film contains silicon oxide,
the thickness of the first adsorption film is substantially 70 nm, and
the thickness of the second vapor-deposited film is substantially 20 nm.
4. The electro-optical device according to claim 3 , wherein
a thickness of the first vapor-deposited film is substantially 40 nm and
a density of the first vapor-deposited film is greater than a density of the second vapor-deposited film.
5. The electro-optical device according to claim 1 , wherein the sealing material contains resin having curability.
6. The electro-optical device according to claim 1 , wherein
the second substrate includes
a second alignment film configured to align the liquid crystal and
an ion-adsorbing second adsorption film disposed in contact with the sealing material,
the second alignment film includes
a third vapor-deposited film and
a fourth vapor-deposited film disposed between the third vapor-deposited film and the liquid crystal layer,
the fourth vapor-deposited film and the second adsorption film include a column of which a long axis direction intersects the thickness direction of the liquid crystal layer, and
a thickness of the second adsorption film is thicker than a thickness of the fourth vapor-deposited film.
7. The electro-optical device according to claim 1 , wherein
the first adsorption film and the partition portion do not overlap in plan view.
8. The electro-optical device according to claim 1 , wherein the end of the first alignment film is disposed on top of the first adsorption film.
9. An electronic apparatus comprising the electro-optical device according to claim 1 .
10. The electro-optical device according to claim 1 , wherein a thickness of the first vapor-deposited film is thicker than the thickness of the second vapor-deposited film.
11. The electro-optical device according to claim 1 , wherein the column of the first adsorption film contains silicon oxide.