The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 1997
Filed:
Jan. 24, 1996
Samsung Display Devices Co., Ltd., Kyonggi-do, KR;
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.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile