Patent · US Active

Light-scattering films and the use thereof in flat screens

US7662471B2 · kind B2 · utility

2Cited by

3References

8Claims

0Family size

Assignee

Bayer MaterialScience AG · DE

Inventors

Heinz Pudleiner · Krefeld, DE
Klaus Meyer · Dormagen, DE
Jorg Nickel · Dormagen, DE

Key dates

Filing date	Oct 16, 2006
Grant date	Feb 16, 2010
Priority date	—
Expiry date	Apr 3, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A film comprising a matrix of transparent polymeric resin, and polymeric particles is disclosed. The particles are characterized in that their refractive index is different from that of the polymeric resin and in that their average particle size is 1 and 100 μm. One surface of the film is structured its 60° gloss value is greater than 0.5 and smaller than 20%, and its roughness is greater than 3 and lower than 25 μm. The other surface has a 60° gloss value greater than 50%. The film is suitable for use in flat screens.

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