LIGHT-EMITTING ELEMENT, DISPLAY MODULE, LIGHTING MODULE, LIGHT-EMITTING DEVICE, DISPLAY DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE

摘要

In a tandem type light emitting element, provided is a light emitting device which prevents the generation of cross talk even though a high cleaned display. Provided is a light emitting device where a layer touching both sides of a middle layer in an tandem element includes 2,9-bis(naphthalene -2-yl)-4,7-diphenyl-1,10- phenanthroline (diminutive: NBphen).