Blue color filter, and organic electroluminescent device using the same

摘要

A blue color filter contains a first colorant represented by structural formula (1) in the specification and a binder resin, and also contain a second colorant that absorbs fluorescence from the first colorant and does not have a fluorescence maximum in a visible wavelength region, whereby the blue color filter is suitable for an organic EL (electroluminescent) display for which the purity of the blue color and the transmissivity are high and the contrast is good.