Display element and display apparatus

A display element comprising:

• a light source portion that emits excitation light;
• a wavelength conversion portion that converts the excitation light to light with a wavelength longer than a wavelength of the excitation light;
• an excitation light reflective layer that reflects the excitation light having penetrated through the wavelength conversion portion;
• and
• an optical member that transmits light converted by the wavelength conversion portion, in this order, wherein
• the wavelength conversion portion includes a first wavelength conversion layer that converts the excitation light to first wavelength converted light with a wavelength longer than the wavelength of the excitation light, and a second wavelength conversion layer that converts the excitation light to second wavelength converted light with a wavelength longer than the wavelength of the first wavelength converted light,
• the display element is a component of a pixel that includes a green sub-pixel region including the first wavelength conversion layer, a red sub-pixel region including the second wavelength conversion layer, and a blue sub-pixel region not including the first wavelength conversion layer or the second wavelength conversion layer,
• the display element further comprises a low refractive index layer provided in a region between the wavelength conversion portion and the optical member,
• a surface of the low refractive index layer adjacent to the wavelength conversion portion is an interface at which the low refractive index layer is in contact with a region having a higher refractive index than the low refractive index layer,
• the excitation light is blue light,
• the blue sub-pixel region has a resin portion containing light scattering particles that scatter the blue light, and
• an all-angle mean transmittance of the excitation light reflective layer for the blue light is lower than or equal to 32%.