Luminescent material and light emitting device and display device using the same

1. A luminescent material, consisting essentially of:

green particles comprise: a core, a sealing layer covering the core, and green quantum dots, the green particles have an average diameter of 0.06 μm to 30 μm; and

a green phosphor wherein: the green phosphor is mixed with the green particles,

a content of the green phosphor is 5 wt % to 13.9 wt % based on a total weight of the green particles and the green phosphor as 100 wt %, the green phosphor has a main peak wavelength of 530 nm to 550 nm, and a full width at half maximum of 40 nm to 60 nm,

a content of the green particles is 86.1 wt % to 95 wt % based on the total weight of the green particles and the green phosphor as 100 wt %, the green particles have a main peak wavelength of 520 nm to 550 nm, and a full width at half maximum of 10 nm to 30 nm, wherein:

the luminescent material is a green luminescent material,

the content of the green phosphor mixed with the content of the green particles is for NTSC being equal to or larger than 100%, and

the NTSC is calculated by chromaticity coordinates of the green phosphor mixed with the green particles, R(x,y)=(0.67,0.33) and B(x,y)=(0.14,0.08).

2. The luminescent material according to claim 1 , wherein the core is a non-photoluminescent material.

3. The luminescent material according to claim 1 , wherein the sealing layer is least one selected from the group consisting of polysiloxane, glass and silicon dioxide.

4. The luminescent material according to claim 1 , wherein the average diameter of the green particles is 0.10 μm to 10 μm.

5. The luminescent material according to claim 1 , wherein the average diameter of the green particles is 0.15 μm to 3 μm.

6. A light emitting device, comprising:

a light emitting element; and

the luminescent material as claimed in claim 1 and configured for converting an exciting light emitted from the light emitting element to emit a light having a wavelength different from a wavelength of the exciting light.

7. The light emitting device according to claim 6 , wherein the light emitting element comprises a red phosphor and a blue LED chip.

8. The light emitting device according to claim 7 , wherein the red phosphor has a primary light having a peak wavelength of 620 nm to 670 nm, and a full width at half maximum of 8 nm to 82 nm.

9. The light emitting device according to claim 6 , wherein the light emitting element comprises a red particle having red quantum dots and a blue LED chip.

10. The light emitting device according to claim 9 , wherein the red particle has a primary light having a peak wavelength of 632 nm to 672 nm, and a full width at half maximum of 20 nm to 40 nm.

11. A display device, comprising:

a light emitting element; and

the luminescent material as claimed in claim 1 and configured for converting an exciting light emitted from the light emitting element to emit a light having a wavelength different from a wavelength of the exciting light, wherein the display device is a television, a digital camera, a digital video camera, a digital photo frame, a mobile phone, a laptop, a computer monitor, a portable music player, a gaming console, an automobile monitor, a smart watch or a virtual reality glasses.

12. The display device according to claim 11 , wherein the light emitting element comprises a red phosphor and a blue LED chip; the red phosphor has a primary light having a peak wavelength of 620 nm to 670 nm, and a full width at half maximum of 8 nm to 82 nm.

13. The display device according to claim 11 , wherein the light emitting element comprises a red particle has red quantum dots and a blue LED chip; the red particle has a primary light having a peak wavelength of 632 nm to 672 nm, and a full width at half maximum of 20 nm to 40 nm.