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:
May. 25, 1999
Filed:
Mar. 10, 1998
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A method for producing a liquid crystal display device including a pair of substrates and a liquid crystal layer held between the pair of substrates, wherein the liquid crystal layer includes a polymeric region and a liquid crystal region substantially surrounded by the polymeric region, and liquid crystal molecules in the liquid crystal region are axis-symmetrically oriented, the method including the steps of: injecting a precursor mixture containing a liquid crystal material and a polymerizable material between the pair of substrates; heating the precursor mixture to a first temperature which is equivalent to or higher than a miscible temperature of the precursor mixture; cooling the precursor mixture from the first temperature to a second temperature which is lower than the miscible temperature; forming the polymeric region substantially surrounding the liquid crystal region by polymerizing the polymerizable material; and providing a tilt angle to the liquid crystal molecules in a liquid crystal droplet phase-separated from the precursor mixture by continuously applying a prescribed external field to the precursor mixture at least while the precursor mixture is being cooled from the miscible temperature to the second temperature