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:
Apr. 02, 2002
Filed:
Dec. 22, 1999
Applicant:
Inventors:
Asad Aziz Khan, Kent, OH (US);
Xiao-Yang Huang, Stow, OH (US);
Assignee:
Kent Displays Incorporated, Kent, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/133 ; C09K 1/954 ; C09K 1/930 ;
U.S. Cl.
CPC ...
G02F 1/133 ; C09K 1/954 ; C09K 1/930 ;
Abstract
A liquid crystal material for a display device includes a liquid crystal material comprising first chiral nematic liquid crystal component and a second component that exhibits no liquid crystalline phase. The second component is present in an amount not greater than 5% by weight based upon the total weight of the liquid crystal display material and is effective to avoid image sticking of the display device when in use. The liquid crystal material has positive dielectric anisotropy. The second component may have a molecular weight not exceeding 205 grams/mole.