Patent ID: 6899963

Claim:
An electroluminescent device comprising an anode, a spaced-apart cathode, and polymeric luminescent materials disposed between the spaced-apart anode and cathode, the polymeric luminescent materials includes pendant 9,10-dinaphthylanthracene-based polymers having a repeating unit of the formula wherein R 1 , R 2 , R 3 , and R 4 are the same or different, and are each individually hydrogen, or alkyl, or alkenyl, or alkynyl, or alkoxy, or amino wherein alkyl, alkenyl, alkynyl, alkoxy or amino can have from 1 to 40 carbon atoms; or aryl of from 6 to 60 carbon atoms; or heteroaryl of from 4 to 60 carbons; or F, or Cl, or Br; or a cyano group; or a nitro group; and L is a direct bond between 9,10-dinaphthylanthracene and polymer backbone or a carbon linking group having 1 to 40 carbon atoms or a non-carbon linking group having 0 to 40 carbon atoms.