A display device includes a first insulation layer which is disposed on a support substrate with a first refractive index and has a second refractive index which differs from the first refractive index, a second insulation layer which is disposed on the first insulation layer and has a third refractive index which differs from the second refractive index, and a plurality of kinds of color pixels generate lights of different wavelengths, and have a refractive index which is substantially equal to the second refractive index. At least one kind of color pixel is put in contact with the first insulation layer via an opening portion that penetrates the second insulation layer.

 
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