LCD device and method for manufacturing the same
View Patent ↗A pair of dummy orientation film patterns are provided for an orientation film used for aligning LC molecules in an LCD device. For a rubbing treatment of the orientation film, a rubbing cloth is cleaned by one of the dummy orientation film patterns before rubbing the orientation film, and also cleaned by the other of the dummy orientation film patterns after rubbing the orientation film thereby preparing next rubbing treatment for the next LCD device. The dummy orientation film pattern has a thickness larger than the thickness of the orientation film.
1. An LCD device comprising:
an LC layer and first and second substrates sandwiching therebetween said LC layer, each of said first and second substrates mounting thereon an orientation film in a display area and a dummy orientation film pattern in a peripheral area, said dummy orientation film pattern being disposed apart from said orientation film,
wherein said dummy orientation film pattern includes a plurality of stripe films extending parallel to one another.
2. The LCD device according to claim 1 , wherein said stripe films have a thickness larger than a thickness of said orientation film.
3. The LCD device according to claim 1 , wherein one of said stripe films has a thickness larger than another of said stripe films disposed nearer to said orientation film than said one of said stripe films.
4. The LCD device according to claim 3 , wherein one of said stripe films which is nearest to said orientation film has a thickness equal to a thickness of said orientation film.
5. The LCD device according to claim 1 , wherein each of said first and second substrates mounts thereon a pair of said dummy orientation film patterns.
6. The LCD device according to claim 1 , wherein said dummy orientation film pattern comprises a material same as a material for said orientation film.
7. The LCD device according to claim 6 , wherein said dummy orientation film pattern comprises polyimide.
8. The LCD device according to claim 1 , wherein said orientation film and said dummy orientation film pattern are formed by a single flexo-graphic printing process.
9. A method for manufacturing an LCD device comprising:
forming a dummy orientation film pattern in a peripheral area apart from an orientation film formed in a display area;
rubbing said orientation film with a rubbing cloth; and
rubbing said dummy orientation film pattern with the rubbing cloth,
wherein said dummy orientation film pattern includes a plurality of stripe films extending parallel to one another.
10. The method according to claim 9 , wherein a pair of said dummy orientation film patterns are formed near the opposite edges of said orientation film.
11. The method according to claim 9 , wherein said stripe films have a thickness larger than a thickness of said orientation film.
12. The method according to claim 9 , wherein one of said stripe films has a thickness larger than another of said stripe films disposed nearer to said orientation film than said one of said stripe films.
13. The method according to claim 12 , wherein one of said stripe films which is nearest to said orientation film has a thickness equal to a thickness of said orientation film.