Liquid crystal display device and method of manufacturing the same
View Patent ↗A liquid crystal display device including a first substrate, a first alignment film formed over the first substrate, a second substrate, a second alignment film formed over the second substrate, a liquid crystal layer sandwiched between the first alignment film and the second alignment film, and a projecting portion formed over the second substrate. The first and second alignment films are both made of a photo-decomposition-type material. A film thickness “d2” of the second alignment film over the projecting portion and a film thickness “d1” of a portion of the first alignment film facing the projecting portion satisfy a formula (1) and a formula (2): 0 nm<d2<30 nm (1) d2<d1 (2).
1. A liquid crystal display device comprising;
a first substrate including a pixel electrode;
a first alignment film formed over the first substrate including the pixel electrode;
a second substrate;
a second alignment film formed over the second substrate;
a liquid crystal layer sandwiched between the first alignment film and the second alignment film; and
a projecting portion formed over the second substrate,
wherein the first and second alignment films are comprised of a photo-decomposition-type material;
wherein a film thickness “d2” of the second alignment film over the projecting portion and a film thickness “d1” at a portion of the first alignment film facing the projecting portion satisfy a formula (1) and a formula (2):
0 nm<d2<30 nm (1)
d2<d1 (2); and
wherein the film thickness “d1” at the portion of the first alignment film facing the projection portion is less than a film thickness of the first alignment film over the pixel electrode.
2. A liquid crystal display device according to claim 1 , further comprising a first electrode as the pixel electrode and a second electrode formed between the first alignment film and the first substrate, wherein the first electrode is covered by the first alignment film.
3. A liquid crystal display device according to claim 2 , further comprising an insulation film disposed between the second electrode and the liquid crystal layer, wherein the insulation film is covered by the first alignment film.
4. A liquid crystal display device according to claim 3 ,
wherein the liquid crystal layer is configured to be controlled by an electric field generated between the first electrode and the second electrode.
5. A liquid crystal display device according to claim 3 ,
wherein the second electrode comprises a planer electrode, and the first electrode comprises a linear electrode which is disposed between the second electrode and the liquid crystal layer.
6. A liquid crystal display device according to claim 1 , further comprising a projection disposed between the projecting portion and the first substrate;
wherein the projection has a height smaller than a height of the projecting portion, and wherein a portion of the first alignment film with the film thickness “d1” is located over small projection.
7. A liquid crystal display device according to claim 6 , further comprising a first electrode as the pixel electrode and a second electrode formed between the first alignment film and the first substrate, and
wherein the first electrode is covered by the first alignment film.
8. A liquid crystal display device according to claim 7 , further comprising an insulation film disposed between the second electrode and the liquid crystal layer, wherein the insulation film is covered by the first alignment film.
9. A liquid crystal display device according to claim 8 ,
wherein the liquid crystal layer is configured to be controlled by an electric field generated between the first electrode and the second electrode.
10. A liquid crystal display device according to claim 9 ,
wherein the second electrode comprises a planer electrode, and the first electrode comprises a linear electrode which is disposed between the second electrode and the liquid crystal layer.