Patent · US Active

Use of polymerisable diketopyrrolopyrroles in colour filters

US7723530B2 · kind B2 · utility

0Cited by
7References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 3, 2008
Grant dateMay 25, 2010
Priority date—
Expiry dateJan 3, 2028

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09B57/004
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

The present invention relates to the use of polymerisable diketopyrrolopyrroles in colour filters, which can themselves be used for example in electro-optical systems such as TV screens, liquid crystal displays, charge coupled devices, plasma displays or electroluminescent displays and the like.In contrast to conventional pigments the polymerisable diketopyrrolopyrroles do not tend to aggregate and, hence, show very good dispersibility. Color filters prepared by using the polymerisable diketopyrrolopyrroles have high transparence and pure hue. In addition, they facilitate adjustment of color points and enable a large choice of shades.

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