LCD device implementing FLCP orientation film
View Patent ↗A liquid crystal display device having first and second substrates with an interposed liquid crystal layer that has a negative or a positive dielectric anisotropy. First and second electrodes are formed on opposing surfaces of the first and second substrates. A first orientation film comprised of a ferroelectric liquid crystal polymer is formed on the first electrode, and a second orientation film is formed on the second electrode. First and second polarizers are formed on exterior surfaces of the first and second substrates.
1. A liquid crystal display device comprising:
a first substrate having a first electrode and a first orientation film on the first electrode;
a second substrate having a second electrode and a second orientation film on the second electrode; and
a nematic liquid crystal layer between the first and second substrates, wherein the second orientation film includes a ferroelectric liquid crystal polymer.
2. The liquid crystal display device according to claim 1 , wherein the first orientation film includes a homogenous alignment film.
3. The liquid crystal display device according to claim 1 , wherein the liquid crystal layer includes a positive dielectric anisotropy.
4. The liquid crystal display device according to claim 1 , wherein the liquid crystal layer includes a chiral dopant.
5. The liquid crystal display device according to claim 1 , wherein the liquid crystal layer includes a twist nematic liquid crystal layer.
6. The liquid crystal display device according to claim 5 , wherein a twist angle of the twist nematic liquid crystal layer is at least 90 degrees.
7. The liquid crystal display device according to claim 1 , further including a first polarizer on said first substrate.
8. The liquid crystal display device according to claim 7 , further including a second polarizer on said second substrate.
9. The liquid crystal display device according to claim 7 , wherein said first polarizer has a polarization axis perpendicular to an alignment direction of said first orientation film.
10. A liquid crystal display device according to claim 8 , wherein said second polarizer has a polarizing axis parallel to an alignment direction of said second orientation film.