Patent ID: 9663688
Date: 2017-05-30
CPC Classifications: B32B,C09J,G02B,G02F,G06F,Y10T

Claim:
1. An optical member comprising: a first optical base material; a second optical base material having a light-shielding portion on a surface thereof; and a cured product layer, wherein the first and second optical base materials are adhere to each other via the cured product layer, and the cured product layer is made of an ultraviolet-curable adhesive containing (A) a compound represented by the following formula (1), (B) a photopolymerizable compound, and (C) a photopolymerization initiator: wherein R 1 represents an alkyl group having from 1 to 4 carbon atoms; X represents a direct bond or a coupling group represented by the following formula (2): Y represents CH or a nitrogen atom; Z represents a phenylene group, a bipyridine residue, or a fluorene residue; each of t1 and t2 represents an integer of from 0 to 2, provided that t1 and t2 are not 0 at the same time; * represents a coupling site; the coupling site in the formula (1) is bonded to a carbon atom of the oxadiazole skeleton; and in the coupling sites in the formula (2), the left end is bonded to the oxadiazole skeleton, and the right end is bonded to the benzene skeleton or the pyridine skeleton.