Device for the surface treatment of alignment film by wet-type f

Details Device for the surface treatment of alignment film by wet-type f Device for the surface treatment of alignment film by wet-type f

1996-01-24

1997-10-14

Sells, James

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156153, 156580, 349126, 428 1, G02F 113

Patent

active

056767790

ABSTRACT:
A device for surface treating an alignment film used for forming a liquid crystal display comprising a glass substrate, an alignment film formed on a surface of the glass substrate, and a suspension in which the above alignment film is immersed, the suspension ball-type particles. In a first embodiment, a roller is adhered closely to the alignment film by the ball-type particles and is rotated in one direction by power applied from outside to form a plurality of gullies on the surface of the above alignment film. In other embodiments, a circular rotational body or a conical rotational body is adhered closely to the alignment film to provide a fixed shear rate between the suspension and the alignment film by rotational movement in one direction to form a plurality of circular gullies on the surface of the alignment film by the ball-type particles.

REFERENCES:
patent: 5075790 (1991-12-01), Hayashi et al.
patent: 5151298 (1992-09-01), Nammatsu et al.
patent: 5221981 (1993-06-01), Kodera et al.
patent: 5390037 (1995-02-01), Negishi
patent: 5422750 (1995-06-01), Kodera et al.
patent: 5455695 (1995-10-01), Kodera et al.

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