Patent ID: 9691983
Date: 2017-06-27
CPC Classifications: C08G,C08K,C08L,H01L

Claim:
1. A composition comprising a polymer compound, a phosphorescent light-emitting compound that has a light-emitting spectrum peak at smaller than 480 nm, a phosphorescent light-emitting compound that has a light-emitting spectrum peak at 480 nm or larger and smaller than 580 nm, and a phosphorescent light-emitting compound that has a light-emitting spectrum peak at 580 nm or larger and smaller than 680 nm, wherein: the polymer compound comprises greater than 50% (by molarity) of constitutional units that are selected from among a constitutional unit represented by Formula (1)-1, a constitutional unit represented by Formula (1)-2, a constitutional unit represented by Formula (2)-1, and a constitutional unit represented by Formula (2)-2; the polymer compound contains at least both the constitutional unit represented by Formula (1)-1 and the constitutional unit represented by Formula (1)-2; and a ratio of a total weight of the phosphorescent light-emitting compound that has a light-emitting spectrum peak at 480 nm or larger and smaller than 580 nm and the phosphorescent light-emitting compound that has a light-emitting spectrum peak at 580 nm or larger and smaller than 680 nm relative to a weight of the phosphorescent light-emitting compound that has a light-emitting spectrum peak at smaller than 480 nm is 0.01 to 0.3; wherein R R R R R R