Light-emitting device, integrated light-emitting device, and light-emitting module
A integrated light-emitting device including: a base including a conductive wiring; a plurality of light-emitting devices mounted on the base and configured to emit a first light, each of the light-emitting devices comprising a light-emitting element and a encapsulant covering the light-emitting element; a light reflective film provided on an upper surface of the light-emitting element; and a plurality of light reflective members disposed between adjacent ones of the light-emitting devices. A ratio (H/W) of a height (H) of the encapsulant to a width (W) of a bottom surface of the encapsulant is less than 0.5. Each of the light-emitting devices has a batwing light distribution characteristics.
1. A integrated light-emitting device comprising:
a base including a conductive wiring;
a plurality of light-emitting devices mounted on the base and configured to emit a first light, each of the light-emitting devices comprising:
a light-emitting element,
an encapsulant covering the light-emitting element, and
a light reflective portion located at an upper surface of the light-emitting element;
a plurality of light reflective members disposed between the adjacent light-emitting devices,
wherein a ratio (H/W) of a height (H) of each encapsulant to a width (W) of a bottom surface of the encapsulant is less than 0.5, and
wherein each of the light-emitting devices has batwing light distribution characteristics.
2. The integrated light-emitting device according to claim 1 , further comprising:
a light diffusion plate disposed above the light-emitting devices,
wherein a ratio (OD/Pitch) of a distance (OD) between the base and the light diffusion plate to a distance (pitch) between the adjacent light-emitting elements is 0.2 or less.
3. The integrated light-emitting device according to claim 1 , wherein each of the encapsulants contain a light diffusion material.
4. The integrated light-emitting device according to claim 1 , wherein each of the light reflective members has a height that is 0.3 times or less than a distance between the adjacent light-emitting devices.
5. The integrated light-emitting device according to claim 1 , wherein each of the encapsulants have an upper surface with a convex curved shape.
6. The integrated light-emitting device according to claim 1 , wherein each of the encapsulants is formed in the dome shape.
7. The integrated light-emitting device according to claim 1 , wherein each of the light reflective portions is configured such that a light transmissivity of each of the light reflective portions for said first light has incident-angle dependence.
8. The integrated light-emitting device according to claim 1 , wherein the ratio (H/W) of a height (H) of each encapsulant to a width (W) of the bottom surface of the encapsulant is 0.3 or less.
9. A light-emitting module comprising:
the integrated light-emitting device according claim 1 ; and
a wavelength conversion member located at a light extraction surface side of the integrated light-emitting device, the wavelength conversion member being configured to absorb part of light from the light-emitting element and to convert absorbed light to light with a wavelength different from an emission wavelength of the light-emitting element.
10. A integrated light-emitting device comprising:
a base including a conductive wiring;
a plurality of light-emitting devices mounted on the base and configured to emit a first light, each of the light-emitting devices comprising:
a light-emitting element,
an encapsulant covering the light-emitting element, and
a light reflective portion located at an upper surface of the light-emitting element;
a plurality of light reflective members disposed between the adjacent light-emitting devices,
wherein a ratio (H/W) of a height (H) of each encapsulant to a width (W) of a bottom surface of the encapsulant is less than 0.5, and
wherein 30% or more of total light emitted from the light-emitting device is emitted in a direction at an elevation angle of less than 20° relative to an upper surface of the base.
11. The integrated light-emitting device according to claim 10 , further comprising:
a light diffusion plate disposed above the light-emitting devices,
wherein a ratio (OD/Pitch) of a distance (OD) between the base and the light diffusion plate to a distance (pitch) between the adjacent light-emitting elements is 0.2 or less.
12. The integrated light-emitting device according to claim 10 , wherein each of the encapsulants contain a light diffusion material.
13. The integrated light-emitting device according to claim 10 , wherein each of the light reflective members has a height that is 0.3 times or less than a distance between the adjacent light-emitting devices.
14. The integrated light-emitting device according to claim 10 , wherein each of the encapsulants have an upper surface with a convex curved shape.
15. The integrated light-emitting device according to claim 10 , wherein each of the encapsulants is formed in the dome shape.
16. The integrated light-emitting device according to claim 10 , wherein each of the light reflective portions is configured such that a light transmissivity of each of the light reflective portions for said first light has incident-angle dependence.
17. The integrated light-emitting device according to claim 10 , wherein the ratio (H/W) of a height (H) of each encapsulant to a width (W) of the bottom surface of the encapsulant is 0.3 or less.
18. A light-emitting module comprising:
the integrated light-emitting device according claim 10 ; and
a wavelength conversion member located at a light extraction surface side of the integrated light-emitting device, the wavelength conversion member being configured to absorb part of light from the light-emitting element and to convert absorbed light to light with a wavelength different from an emission wavelength of the light-emitting element.