Light-emitting device, electronic device, and lighting device
A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.
1. A light-emitting apparatus comprising:
a first light-emitting device;
a second light-emitting device; and
a third light-emitting device,
wherein each of the first light-emitting device, the second light-emitting device and the third light-emitting device comprises a first electrode, a light-emitting layer over the first electrode, a first layer over the light-emitting layer, and a second electrode over the first layer,
wherein the first light-emitting device further comprises:
a first color conversion layer over the second electrode; and
a resin layer over the first color conversion layer,
wherein the second light-emitting device further comprises:
a second color conversion layer over the second electrode; and
a first coloring layer over the second color conversion layer,
wherein the second electrode has a light-transmitting property, and
wherein the first layer comprises a first material with a refractive index lower than or equal to 1.75 at 467 nm.
2. The light-emitting apparatus according to claim 1 , wherein the third light-emitting device further comprises a light-scattering layer over the second electrode.
3. The light-emitting apparatus according to claim 1 , wherein the third light-emitting device further comprises a second coloring layer over the second electrode.
4. The light-emitting apparatus according to claim 1 , wherein the first layer is in contact with the second electrode.
5. The light-emitting apparatus according to claim 1 ,
wherein the first material is a mixed material of a first organic compound and an inorganic compound,
wherein the first organic compound has an electron-transport property, and
wherein the inorganic compound is one of a fluoride of an alkali metal and a fluoride of an alkaline earth metal.
6. The light-emitting apparatus according to claim 5 ,
wherein the inorganic compound is an alkali metal fluoride, and
wherein a concentration of the inorganic compound in the first material is higher than or equal to 50 vol % and lower than 95 vol %.
7. The light-emitting apparatus according to claim 5 , wherein a concentration of the inorganic compound in the first material is higher than or equal to 20 vol %.
8. The light-emitting apparatus according to claim 1 ,
wherein each of the first color conversion layer and the second color conversion layer comprises a first substance capable of emission by absorbing light, and
wherein the first substance is a quantum dot.
9. The light-emitting apparatus according to claim 1 , wherein the third light-emitting device is configured to emit blue light.
10. An electronic device comprising the light-emitting apparatus according to claim 1 .
11. A lighting device comprising the light-emitting apparatus according to claim 1 .
12. A light-emitting apparatus comprising:
a first light-emitting device;
a second light-emitting device; and
a third light-emitting device,
wherein each of the first light-emitting device, the second light-emitting device and the third light-emitting device comprises a first electrode, a first light-emitting layer over the first electrode, a charge-generation layer over the first light-emitting layer, a second light-emitting layer over the charge-generation layer, a first layer over the second light-emitting layer, and a second electrode over the first layer,
wherein the first light-emitting device further comprises:
a first color conversion layer over the second electrode; and
a resin layer over the first color conversion layer,
wherein the second light-emitting device further comprises:
a second color conversion layer over the second electrode; and
a first coloring layer over the second color conversion layer,
wherein the second electrode has a light-transmitting property, and
wherein the first layer comprises a first material with a refractive index lower than or equal to 1.75 at 467 nm.
13. The light-emitting apparatus according to claim 12 , wherein the third light-emitting device further comprises a light-scattering layer over the second electrode.
14. The light-emitting apparatus according to claim 12 , wherein the third light-emitting device further comprises a second coloring layer over the second electrode.
15. The light-emitting apparatus according to claim 12 , wherein the first layer is in contact with the second electrode.
16. The light-emitting apparatus according to claim 12 ,
wherein the first material is a mixed material of a first organic compound and an inorganic compound,
wherein the first organic compound has an electron-transport property, and
wherein the inorganic compound is one of a fluoride of an alkali metal and a fluoride of an alkaline earth metal.
17. The light-emitting apparatus according to claim 12 ,
wherein each of the first color conversion layer and the second color conversion layer comprises a first substance capable of emission by absorbing light, and
wherein the first substance is a quantum dot.
18. The light-emitting apparatus according to claim 12 , wherein the third light-emitting device is configured to emit blue light.
19. An electronic device comprising the light-emitting apparatus according to claim 12 .
20. A lighting device comprising the light-emitting apparatus according to claim 12 .