BLUE-BASED ORGANIC ELECTRO-LUMINESCENCE ELEMENT AND DISPLAY DEVICE

摘要

A blue-based organic electro-luminescence element includes a first reflection member (21), a second reflection member (23) and a light emitting layer (22) arranged between the first and the second reflection member (21, 23). The light emitting layer (22) has a first organic light emitting medium emitting light having blue first light emission peak wavelength and a second organic light emission medium emitting light having a second light emission peak wavelength. The lights emitted from the first and the second organic light emission media interfere each other between the first and the second reflection members (21, 23), so that the light emitted by the first organic light emission medium is emphasized and the light extracted outside has a first and a second light emission peak wavelength satisfying the following relationship: I1 > I2 x 5, I1 < I2 x 100 (wherein I1 represents a light emission intensity of the first light emission peak wavelength and I2 represents a light emission intensity of the second light emission peak wavelength.)