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:
Sep. 23, 1997
Filed:
Oct. 21, 1994
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ; G02F / ;
U.S. Cl.
CPC ...
349106 ; 349122 ; 349138 ;
Abstract
There is disclosed a ferroelectric liquid crystal color-display panel capable of preventing defects in liquid crystal orientation, resulting from the glass substrate bending, particularly in the end portion of effective display area, by the use of a gap-retaining material, such as silica or alumina beads, in the sealant of the panel, wherein the diameter T of the gap retaining material satisfies a relation: ##EQU1## in which t.sub.1 is the cell gap in the display area and t.sub.2 is the thickness of color filter provided in the display area.