Patent · US Expired

Method for manufacturing liquid crystal display

US6853426B2 · kind B2 · utility

4Cited by
1References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 20, 2001
Grant dateFeb 8, 2005
Priority date
Expiry dateDec 20, 2021

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F2202/22
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

The present invention materializes a liquid-crystal display element and a liquid-crystal display device which promise superior display performance, in which the surface of an alignment film formed on a substrate member has been subjected to rubbing in the state the surface potential of a rubbing roller has been controlled by bringing a charge control member made to have the same potential as the potential of the substrate member into contact with the rubbing roller, to keep any foreign matter from adhering to the alignment film surface.

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