Patent · US Expired

Cellulose ester film, production method of the same, film employed in liquid crystal display member, and polarizing plate

US6731357B1 · kind B1 · utility

33Cited by
6References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 27, 2000
Grant dateMay 4, 2004
Priority date
Expiry dateJan 27, 2020

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/133528
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A film employed in a liquid crystal display member is disclosed. The film has film thickness of 20 to 60 &mgr;m and variation in the film thickness within ±3.0 percent of the standard film thickness.

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