Rhodamine compounds, color conversion filters and the color conversion light emitting device using the film which comprises an optical filter for image display, the color conversion layer and it this

摘要

PROBLEM TO BE SOLVED: To provide a rhodamine compound having excellent light fastness and heat resistance, and to provide a color conversion layer including a color conversion pigment that has high stability to decomposition in the color conversion from blue or blue-green color to red color and keeps high color conversion efficiency even when the rhodamine content is increased.;SOLUTION: This invention is a rhodamine compound having the chemical structure represented by general formula (I) (wherein R₁-R₁₁ are each H, a substituted alkyl or the like); in addition, a film including the same; an optical filter, further a color conversion layer including the rhodamine compound and a binder; a color conversion filter using the same; and a color conversion light-emitting device.;COPYRIGHT: (C)2005,JPO&NCIPI