FLUORESCENT DISPLAY
First Claim
1. A fluorescent display, comprising a laminate between two glass panes, of at least one film A containing a polyvinyl acetal PA and, optionally, at least one plasticizer WA, and at least one film B containing a polyvinyl acetal PB and at least one plasticizer WB wherein prior to lamination, film A has less than 22 wt. % plasticizer WA and 0.001 to 5 wt. % fluorophores and film B has at least 22 wt. % plasticizer WB and 0.005-5 wt. % UV absorber.
1 Assignment
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Accused Products
Abstract
Fluorescent displays are manufactured by lamination of at least one film A containing a polyvinyl acetal PA and, optionally, a plasticizer WA and at least one film B containing a polyvinyl acetal PB and at least one plasticizer WB between two glass panes, wherein prior to lamination, film A contains less than 22 wt. % plasticizer WA and contains 0.001 to 5 wt. % fluorophores, and film B contains at least 22 wt. % plasticizer WB and contains 0.005-5 wt. % UV absorber, each before lamination.
13 Citations
19 Claims
- 1. A fluorescent display, comprising a laminate between two glass panes, of at least one film A containing a polyvinyl acetal PA and, optionally, at least one plasticizer WA, and at least one film B containing a polyvinyl acetal PB and at least one plasticizer WB wherein prior to lamination, film A has less than 22 wt. % plasticizer WA and 0.001 to 5 wt. % fluorophores and film B has at least 22 wt. % plasticizer WB and 0.005-5 wt. % UV absorber.
Specification