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. 21, 1999
Filed:
Oct. 06, 1995
Hiroyuki Fujita, Chiba, JP;
Shigeru Senbonmatsu, Chiba, JP;
Kaori Taniguchi, Chiba, JP;
Shuhei Yamamoto, Chiba, JP;
Theo Welzen, Maastricht, NL;
Seiko Instruments Inc., , JP;
Abstract
A liquid crystal display panel comprises first and second substrates each having a transparent electrode and an orientation plane, a nematic liquid crystal material disposed between the first and second substrates, a polarizer disposed over the first substrate and the nematic liquid crystal material, and a simplex polymer film comprised of a single optically anisotropic substance disposed between the first substrate and the polarizer. The nematic liquid crystal material has a positive anisotropy of refractive index, a retardation of 0.55 .mu.m to 1.75 .mu.m, and molecules twisted at a high degree with a twist angle of 180.degree. to 270.degree.. The simplex polymer film has a retardation of 20 nm to 200 nm.