Near-infrared absorption film

Details Near-infrared absorption film Near-infrared absorption film

2006-03-28

2006-03-28

Ashton, Rosemary (Department: 1752)

Stock material or miscellaneous articles

Composite

C430S944000, C252S587000, C250S316100, C428S480000

Reexamination Certificate

active

07018714

ABSTRACT:
The present invention aims to provide a near-infrared absorption film having excellent near-infrared blocking properties and visible light transparency over a wide wavelength range, and attractive appearance. It further aims to provide a near-infrared absorption film having excellent near-infrared blocking properties, visible light transparency, good appearance and excellent durability such as anti-deterioration properties. The film may comprise a transparent substrate, and a near-infrared absorption layer containing a cyanine compound represented by the formula (1), and a diimonium compound.wherein, in the formula (1), A is a divalent bonding group comprising ethylene. R1and R2are monovalent groups comprising a carbon atom. X−is a monovalent anion. The film may also comprise a transparent substrate, and a near-infrared absorption layer containing a layer containing the cyanine compound represented by the formula (1) and a layer containing a diimonium compound.

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