Patent · US Expired

Liquid crystal display and optical compensatory sheet and process for preparation of the same

US5635105A · kind A · utility

33Cited by
9References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 12, 1995
Grant dateJun 3, 1997
Priority date
Expiry dateMay 12, 2015

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/1397
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Disclosed are a liquid crystal display provided with an optical compensatory sheet comprising an optically anisotropic layer which has negative birefringence and comprises a polymer having a discotic structure in its molecule, and an optical compensatory sheet which comprises a transparent support, an orientation layer provided thereon and the optically anisotropic layer provided on the orientation layer. Further, a process for preparation of the optical compensatory sheet and a liquid crystal composition which is useful as material for preparing the optical compensatory sheet are also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.