Sony Group Corporation
DISPLAY APPARATUS, LIGHT EMITTING DEVICE, AND LIGHT EMITTING MEMBER

Abstract:

The display apparatus includes a plurality of light emitting device units each including: a light generating unit 11, 21, or 31; a wavelength conversion layer 12, 22, or 32 including a color conversion layer 13, 23, or 33 that includes a particulate color conversion material; and a first light emitting device 10, a second light emitting device 20, or a third light emitting device 30 including a wavelength selection layer 14, 24, or 34. The wavelength of light emitted from the third wavelength selection layer 34 is longer than the wavelength of light emitted from the second wavelength selection layer 24 and the wavelength of light emitted from the first wavelength selection layer 14. The wavelength of light emitted from the second wavelength selection layer 24 is longer than the wavelength of light emitted from the first wavelength selection layer 14. Further, T.sub.1<T.sub.2.ltoreq.T.sub.3 is satisfied, where T.sub.1 denotes the thickness of the first color conversion layer 14, T.sub.2 denotes the thickness of the second color conversion layer 24, and T.sub.3 denotes the thickness of the third color conversion layer 34.