Patent ID: 8465675

Claim:
An encapsulation material, comprising: an 80 to 99.5 weight percentage (wt %) of an ethylene vinyl acetate copolymer (EVA); and a 0.5 to 20 weight percentage (wt %) of a photoluminescent polymer, wherein the EVA and the photoluminescent polymer are evenly blended; wherein the photoluminescent polymer has the general formula as follows: wherein D is a photoluminescent group; R 1 , R 2 , and R 3 are independently selected from hydrogen, a substituted C 1-6 alkyl group, or an unsubstituted C 1-6 alkyl group; R 4 is a substituted C 1-6 alkylenyl group or an unsaturated C 1-6 alkylenyl group; m is an integer of 1 to 5; and n is 10 to 10,000.