Liquid crystal cell and method of manufacture
View Patent ↗A liquid crystal cell having a first substrate with a rubbed layer provided thereon, a second substrate with a photo-aligned layer provided thereon, and a liquid crystal material provided between the substrates.
1. A method of manufacturing a liquid crystal display, comprising the steps of:
providing a first alignment layer on a first substrate;
rubbing said first alignment layer such that said first alignment layer has a single pretilt angle associated therewith;
providing a second alignment layer on a second substrate;
exposing said second alignment layer to unpolarized light in an oblique direction to form a plurality of pretilt angles and a plurality of pretilt directions on said second alignment layer, each pretilt angle being controlled by photo-energy; and providing a liquid crystal material between said first and second substrates to form a liquid crystal cell.
2. The method of manufacturing a liquid crystal display according to claim 1 , further including exposing said second alignment layer to polarized light in a perpendicular direction.
3. The method of manufacturing a liquid crystal display according to claim 1 , wherein said first alignment layer includes polyimide.
4. The method of manufacturing a liquid crystal display according to claim 1 , wherein said second alignment layer includes polysiloxane based materials.
5. The method of manufacturing a liquid crystal display according to claim 1 , wherein the liquid crystal cell includes a TN mode liquid crystal cell.
6. The method of manufacturing a liquid crystal display according to claim 1 , wherein the liquid crystal cell includes an ECB mode liquid crystal cell.
7. The method of manufacturing a liquid crystal display according to claim 1 , wherein the liquid crystal cell includes a bend mode liquid crystal cell.
8. The method of manufacturing a liquid crystal display according to claim 1 , wherein the liquid crystal cell includes an IPS mode liquid crystal cell.
9. The method of manufacturing a liquid crystal display according to claim 1 , wherein only said second alignment layer is exposed to unpolarized light in an oblique direction.