Light-emitting device, integrated light-emitting device, and light-emitting module
A integrated light-emitting device includes: 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 . An integrated light-emitting device comprising:
a base;
a plurality of light-emitting devices mounted on a surface of the base, each of the light-emitting devices comprising:
a light-emitting element,
a light reflective film located on an upper surface of the light-emitting element that faces away from the surface of the base, and
an encapsulant that covers the light-emitting element and the light reflective film so as to directly contact an upper surface of the light reflective film, lateral surfaces of the light reflective film, and lateral surfaces of the light-emitting element, the encapsulant having a dome shape, wherein the encapsulant has a maximum height at a position that overlaps the light-emitting element in a top view; and
a plurality of light reflective members disposed between adjacent ones of the light-emitting devices, wherein the light reflective members divide a surface of the base into a plurality of pixels.
2 . The integrated light-emitting device according to claim 1 , wherein a ratio (H/W) of a height (H) of each encapsulant to a width (W) of a bottom surface of the encapsulant is 0.5 or less.
3 . The integrated light-emitting device according to claim 1 , wherein each of the encapsulants contains a light diffusion material.
4 . The integrated light-emitting device according to claim 1 , wherein a ratio (H/W) of a height (H) of each encapsulant to a width (W) of a bottom surface of the encapsulant is 0.3 or less.
5 . A light-emitting module comprising:
the integrated light-emitting device according claim 1 ; and
a wavelength conversion layer located at a light extraction surface side of the integrated light-emitting device, the wavelength conversion layer being configured to absorb part of light from the light-emitting elements and to convert absorbed light to light with a wavelength different from an emission wavelength of the light-emitting elements.
6 . The integrated light-emitting device according to claim 1 , wherein each of the light-emitting devices has a batwing light distribution characteristic.
7 . The integrated light-emitting device according to claim 1 , wherein each of the reflective members has a shape that tapers in a direction away from the surface of the base.
8 . A light-emitting module comprising:
a base having an upper surface;
a plate disposed on the upper surface of the base, the plate comprising a plurality of light reflective surfaces that divide the base into a plurality of regions in a top view; and
a plurality of light-emitting devices, each disposed on an upper surface of the base in a respective one of the regions, each light-emitting device comprising:
a light-emitting element,
a light reflective film disposed on an upper surface of the light emitting element, and
an encapsulant that covers the light-emitting element and the light reflective film so as to directly contact an upper surface of the light reflective film, lateral surfaces of the light reflective film, and lateral surfaces of the light-emitting element, the encapsulant having a dome shape, wherein the encapsulant has a maximum height at a position that overlaps the light-emitting element in a top view.
9 . The light-emitting module according to claim 8 , wherein the plate defines a plurality of openings at which the upper surface of the base is exposed from the light reflective members, and each light-emitting device is disposed in a respective one of the openings.
10 . The light-emitting module according to claim 8 , wherein each of the regions is rectangular.
11 . The light-emitting module according to claim 8 , wherein each of the encapsulants contains a light diffusion material.
12 . The light-emitting module according to claim 8 , wherein a ratio (H/W) of a height (H) of encapsulant to a width (W) of a bottom surface of the encapsulant is 0.5 or less.
13 . The light-emitting module according to claim 8 , wherein a ratio (H/W) of a height (H) of encapsulant to a width (W) of a bottom surface of the encapsulant is 0.3 or less.
14 . The light-emitting module according to claim 8 , further comprising:
a wavelength conversion layer located at a light extraction surface side of the plurality of light-emitting devices, the wavelength conversion layer being configured to absorb part of light from the light-emitting elements and to convert absorbed light to light with a wavelength different from an emission wavelength of the light-emitting elements.
15 . The light-emitting module according to claim 8 , wherein each of the light-emitting devices has a batwing light distribution characteristic.
16 . The light-emitting module according to claim 8 , wherein each of the reflective members has a shape that tapers in a direction away from the surface of the base.