LIGHT EMITTING DEVICE
A light emitting device includes a light emitting unit, a light transmissive layer and an encapsulant. The light emitting unit includes a substrate, an epitaxial structure layer disposed on the substrate, and a first electrode and a second electrode disposed on the same side of the epitaxial structure layer, respectively. The light emitting unit is disposed on the light transmissive layer and at least a part of the first electrode and a part of the second electrode are exposed by the light transmissive layer. The encapsulant encapsulates the light emitting unit and at least exposes a part of the first electrode and a part of the second electrode. Each of the first electrode and the second electrode extends outward from the epitaxial structure layer, and covers at least a part of an upper surface of the encapsulant, respectively.
1 . A light emitting device, comprising:
a light emitting unit, comprising
a substrate;
an epitaxial structure layer, disposed on the substrate; and
a first electrode and a second electrode, respectively disposed on a same side of the epitaxial structure layer;
a light transmissive layer, wherein the light emitting unit is disposed on the light transmissive layer and the light transmissive layer at least exposes the first electrode and the second electrode; and
an encapsulant, encapsulating the light emitting unit and at least exposing a part of the first electrode and a part of the second electrode, wherein the first electrode and the second electrode respectively extend outward from the epitaxial structure layer, and respectively cover at least a part of an upper surface of the encapsulant.
2 . The light emitting device as claimed in claim 1 , wherein the first electrode comprises a first electrode portion connected to the epitaxial structure layer and a first electrode extending portion connected to the first electrode portion, and the second electrode comprises a second electrode portion connected to the epitaxial structure layer and a second electrode extending portion connected to the second electrode portion, and the first electrode extending portion and the second electrode extending portion respectively extend outward to at least a part of the upper surface of the encapsulant.
3 . The light emitting device as claimed in claim 2 , wherein the first electrode extending portion and the second electrode extending portion are aligned with or contracted inward relative to an edge of the upper surface of the encapsulant.
4 . The light emitting device as claimed in claim 1 , further comprising:
one or a plurality of flat surfaces, each comprising the light transmissive layer and the encapsulant.
5 . The light emitting device as claimed in claim 2 , wherein the first electrode extending portion comprises a plurality of first grating type electrodes, and the second electrode extending portion comprises a plurality of second grating type electrodes, the first grating type electrodes are distributed on the first electrode portion and a part of the upper surface of the encapsulant, and the second grating type electrodes are distributed on the second electrode portion and a part of the upper surface of the encapsulant.
6 . The light emitting device as claimed in claim 2 , wherein at least a part of the first electrode extending portion extends from an edge of the first electrode portion towards a direction away from the second electrode portion, and at least a part of the second electrode extending portion extends from an edge of the second electrode portion towards a direction away from the first electrode portion.
7 . The light emitting device as claimed in claim 2 , wherein the first electrode extending portion and the second electrode extending portion respectively comprise a plurality of sub-electrodes separated from each other.
8 . The light emitting device as claimed in claim 7 , wherein the first sub-electrodes of the first electrode extending portion are located in at least one corner away from the second electrode on the upper surface of the encapsulant, and the second sub-electrodes of the second electrode extending portion are located in at least one corner away from the first electrode on the upper surface of the encapsulant.
9 . The light emitting device as claimed in claim 2 , wherein the first electrode extending portion and the second electrode extending portion respectively comprise an adhesion layer and a barrier layer disposed between the adhesion layer and the encapsulant.
10 . The light emitting device as claimed in claim 9 , wherein a material of the adhesion layer comprises gold, tin, aluminium, silver, copper, indium, bismuth, platinum, gold-tin alloy, tin-silver alloy, tin-silver-copper alloy (Sn—Ag—Cu (SAC) alloy) or a combination thereof, and a material of the barrier layer includes nickel, titanium, tungsten, gold or an alloy of a combination thereof.
11 . The light emitting device as claimed in claim 2 , wherein the first electrode and the second electrode respectively comprise a reflection layer respectively disposed between the electrode extending portions and the encapsulant.
12 . The light emitting device as claimed in claim 11 , wherein a material of the reflection layer comprises gold, aluminium, silver, nickel, titanium, or an alloy of a combination thereof.
13 . The light emitting device as claimed in claim 1 , further comprising:
a reflection layer, disposed on the upper surface of the encapsulant.
14 . The light emitting device as claimed in claim 13 , wherein at least a part of the reflection layer is located between the electrodes and the encapsulant.
15 . The light emitting device as claimed in claim 13 , wherein a material of the reflection layer comprises gold, aluminium, silver, nickel, titanium, distributed Bragg reflector (DBR), a resin layer doped with reflection particles with high reflectivity or a combination thereof.
16 . The light emitting device as claimed in claim 1 , further comprising:
a wavelength conversion material, wrapping the light emitting unit and at least exposing a part of the first electrode and a part of the second electrode.
17 . The light emitting device as claimed in claim 16 , wherein the wavelength conversion material comprises a fluorescent material or a quantum dot material.
18 . The light emitting device as claimed in claim 16 , wherein the wavelength conversion material is formed on a surface of the light emitting unit, formed on a surface of the encapsulant or mixed in the encapsulant.
19 . A light emitting device, comprising:
a light emitting unit, comprising:
a substrate,
an epitaxial structure layer, disposed on the substrate; and
a first electrode and a second electrode, respectively disposed on a same side of the epitaxial structure layer opposite to the substrate;
a light transmissive layer, disposed on the light emitting unit and located at one side of the substrate opposite to the epitaxial structure layer, the first electrode and the second electrode; and
an encapsulant, located between the light emitting unit and the light transmissive layer, and encapsulating the light emitting unit and at least exposing a part of the first electrode and a part of the second electrode, wherein the first electrode and the second electrode respectively extend outward from the epitaxial structure layer, and respectively cover at least a part of an upper surface of the encapsulant.
20 . The light emitting device as claimed in claim 19 , wherein the first electrode comprises a first electrode portion connected to the epitaxial structure layer and a first electrode extending portion connected to the first electrode portion, and the second electrode comprises a second electrode portion connected to the epitaxial structure layer and a second electrode extending portion connected to the second electrode portion, and the first electrode extending portion and the second electrode extending portion respectively extend outward to at least a part of the upper surface of the encapsulant.
21 . The light emitting device as claimed in claim 20 , wherein the first electrode extending portion and the second electrode extending portion are aligned with or contracted inward relative to an edge of the upper surface of the encapsulant.
22 . The light emitting device as claimed in claim 19 , further comprising:
one or a plurality of flat surfaces, each comprising the light transmissive layer and the encapsulant.
23 . The light emitting device as claimed in claim 20 , wherein the first electrode extending portion comprises a plurality of first grating type electrodes, and the second electrode extending portion comprises a plurality of second grating type electrodes, the first grating type electrodes are distributed on the first electrode portion and a part of the upper surface of the encapsulant, and the second grating type electrodes are distributed on the second electrode portion and a part of the upper surface of the encapsulant.
24 . The light emitting device as claimed in claim 20 , wherein at least a part of the first electrode extending portion extends from an edge of the first electrode portion towards a direction away from the second electrode portion, and at least a part of the second electrode extending portion extends from an edge of the second electrode portion towards a direction away from the first electrode portion.
25 . The light emitting device as claimed in claim 20 , wherein the first electrode extending portion and the second electrode extending portion respectively comprise a plurality of sub-electrodes separated from each other.
26 . The light emitting device as claimed in claim 20 , wherein the first electrode extending portion and the second electrode extending portion respectively comprise an adhesion layer and a barrier layer disposed between the adhesion layer and the encapsulant.
27 . The light emitting device as claimed in claim 26 , wherein a material of the adhesion layer comprises gold, tin, aluminium, silver, copper, indium, bismuth, platinum, gold-tin alloy, tin-silver alloy, tin-silver-copper alloy (Sn—Ag—Cu (SAC) alloy) or a combination thereof, and a material of the barrier layer includes nickel, titanium, tungsten, gold or an alloy of a combination thereof.
28 . The light emitting device as claimed in claim 20 , wherein the first electrode and the second electrode respectively comprise a reflection layer respectively disposed between the electrode extending portions and the encapsulant.
29 . The light emitting device as claimed in claim 28 , wherein a material of the reflection layer comprises gold, aluminium, silver, nickel, titanium, or an alloy of a combination thereof.
30 . The light emitting device as claimed in claim 19 , further comprising:
a reflection layer, disposed on the upper surface of the encapsulant.
31 . The light emitting device as claimed in claim 30 , wherein at least a part of the reflection layer is located between the electrodes and the encapsulant.
32 . The light emitting device as claimed in claim 30 , wherein a material of the reflection layer comprises gold, aluminium, silver, nickel, titanium, distributed Bragg reflector (DBR), a resin layer doped with reflection particles with high reflectivity or a combination thereof.
33 . The light emitting device as claimed in claim 19 , further comprising:
a wavelength conversion material, wrapping the light emitting unit and at least exposing a part of the first electrode and a part of the second electrode.
34 . The light emitting device as claimed in claim 33 , wherein the wavelength conversion material comprises a fluorescent material or a quantum dot material.
35 . The light emitting device as claimed in claim 33 , wherein the wavelength conversion material is formed on a surface of the light emitting unit, formed on a surface of the encapsulant or mixed in the encapsulant.
36 . A light emitting device, comprising:
a light emitting unit, comprising:
a substrate,
an epitaxial structure layer, disposed on the substrate; and
a first electrode and a second electrode, respectively disposed on a same side of the epitaxial structure layer;
an encapsulant, encapsulating the light emitting unit and at least exposing a part of the first electrode and a part of the second electrode, wherein the first electrode and the second electrode respectively extend upward from the epitaxial structure layer without covering an upper surface of the encapsulant.
37 . The light emitting device as claimed in claim 36 , wherein the first electrode comprises a first electrode portion and a first electrode extending portion, and the second electrode comprises a second electrode portion and a second electrode extending portion, wherein the first electrode extending portion and the second electrode extending portion respectively protrude out from the upper surface of the encapsulant.
38 . The light emitting device as claimed in claim 37 , wherein the first electrode extending portion comprises a plurality of first sub-electrodes separated from each other, and the second electrode extending portion comprises a plurality of second sub-electrodes separated from each other.
39 . The light emitting device as claimed in claim 36 , wherein the encapsulant has one or a plurality of flat surfaces.
40 . The light emitting device as claimed in claim 36 , further comprising:
a reflection layer, at least disposed on a part of the upper surface of the encapsulant.
41 . The light emitting device as claimed in claim 40 , wherein a material of the reflection layer comprises gold, aluminium, silver, nickel, titanium, distributed Bragg reflector (DBR), a resin layer doped with reflection particles with high reflectivity or a combination thereof.
42 . The light emitting device as claimed in claim 36 , further comprising:
a wavelength conversion material, wrapping the light emitting unit and at least exposing a part of the first electrode and a part of the second electrode.
43 . The light emitting device as claimed in claim 42 , wherein the wavelength conversion material comprises a fluorescent material or a quantum dot material.
44 . The light emitting device as claimed in claim 42 , wherein the wavelength conversion material is formed on a surface of the light emitting unit, formed on a surface of the encapsulant or mixed in the encapsulant.
45 . A light emitting device, comprising:
a light emitting unit, comprising:
a substrate,
an epitaxial structure layer, disposed on the substrate; and
a first electrode and a second electrode, respectively disposed on a same side of the epitaxial structure layer; and
an encapsulant, encapsulating the light emitting unit and at least exposing a part of the first electrode and a part of the second electrode, wherein the first electrode and the second electrode respectively extend outward from the epitaxial structure layer and respectively cover at least a part of an upper surface of the encapsulant.
46 . The light emitting device as claimed in claim 45 , wherein the first electrode comprises a first electrode portion connected to the epitaxial structure layer and a first electrode extending portion connected to the first electrode portion, and the second electrode comprises a second electrode portion connected to the epitaxial structure layer and a second electrode extending portion connected to the second electrode portion, and the first electrode extending portion and the second electrode extending portion respectively extend outward to at least a part of the upper surface of the encapsulant.
47 . The light emitting device as claimed in claim 46 , wherein the first electrode extending portion and the second electrode extending portion are aligned with or contracted inward relative to an edge of the upper surface of the encapsulant.
48 . The light emitting device as claimed in claim 45 , wherein the encapsulant has one or a plurality of flat surfaces.
49 . The light emitting device as claimed in claim 46 , wherein the first electrode extending portion comprises a plurality of first grating type electrodes, and the second electrode extending portion comprises a plurality of second grating type electrodes, the first grating type electrodes are distributed on the first electrode portion and a part of the upper surface of the encapsulant, and the second grating type electrodes are distributed on the second electrode portion and a part of the upper surface of the encapsulant.
50 . The light emitting device as claimed in claim 46 , wherein at least a part of the first electrode extending portion extends from an edge of the first electrode portion towards a direction away from the second electrode portion, and at least a part of the second electrode extending portion extends from an edge of the second electrode portion towards a direction away from the first electrode portion.
51 . The light emitting device as claimed in claim 46 , wherein the first electrode extending portion and the second electrode extending portion respectively comprise a plurality of sub-electrodes separated from each other.
52 . The light emitting device as claimed in claim 46 , wherein the first electrode extending portion and the second electrode extending portion respectively comprise an adhesion layer and a barrier layer disposed between the adhesion layer and the encapsulant.
53 . The light emitting device as claimed in claim 52 , wherein a material of the adhesion layer comprises gold, tin, aluminium, silver, copper, indium, bismuth, platinum, gold-tin alloy, tin-silver alloy, tin-silver-copper alloy (Sn—Ag—Cu (SAC) alloy) or a combination thereof, and a material of the barrier layer includes nickel, titanium, tungsten, gold or an alloy of a combination thereof.
54 . The light emitting device as claimed in claim 46 , wherein the first electrode and the second electrode respectively comprise a reflection layer respectively disposed between the electrode extending portions and the encapsulant.
55 . The light emitting device as claimed in claim 54 , wherein a material of the reflection layer comprises gold, aluminium, silver, nickel, titanium, or an alloy of a combination thereof.
56 . The light emitting device as claimed in claim 45 , further comprising:
a reflection layer, disposed on the upper surface of the encapsulant.
57 . The light emitting device as claimed in claim 56 , wherein at least a part of the reflection layer is located between the electrodes and the encapsulant.
58 . The light emitting device as claimed in claim 56 , wherein a material of the reflection layer comprises gold, aluminium, silver, nickel, titanium, distributed Bragg reflector (DBR), a resin layer doped with reflection particles with high reflectivity or a combination thereof.
59 . The light emitting device as claimed in claim 45 , further comprising:
a wavelength conversion material, wrapping the light emitting unit and at least exposing a part of the first electrode and a part of the second electrode.
60 . The light emitting device as claimed in claim 59 , wherein the wavelength conversion material comprises a fluorescent material or a quantum dot material.
61 . The light emitting device as claimed in claim 59 , wherein the wavelength conversion material is formed on a surface of the light emitting unit, formed on a surface of the encapsulant or mixed in the encapsulant.
62 . A light emitting device, comprising:
a light emitting unit, comprising:
a substrate;
an epitaxial structure layer, disposed on the substrate; and
a first electrode and a second electrode, respectively disposed on a same side of the epitaxial structure layer;
a light transmissive layer, wherein the light emitting unit is disposed on the light transmissive layer and at least exposes the first electrode and the second electrode; and
an encapsulant, encapsulating the light emitting unit and at least exposing a part of the first electrode and a part of the second electrode, wherein the first electrode and the second electrode respectively extend upward from the epitaxial structure layer without covering an upper surface of the encapsulant.
63 . The light emitting device as claimed in claim 62 , wherein the first electrode comprises a first electrode portion and a first electrode extending portion, and the second electrode comprises a second electrode portion and a second electrode extending portion, wherein the first electrode extending portion and the second electrode extending portion respectively protrude out from the upper surface of the encapsulant.
64 . The light emitting device as claimed in claim 63 , wherein the first electrode extending portion and the second electrode extending portion are aligned with or contracted inward relative to an edge of the upper surface of the encapsulant.
65 . The light emitting device as claimed in claim 62 , further comprising:
one or a plurality of flat surfaces, each comprising the light transmissive layer and the encapsulant.
66 . The light emitting device as claimed in claim 63 , wherein the first electrode extending portion and the second electrode extending portion respectively comprise a plurality of sub-electrodes separated from each other.
67 . The light emitting device as claimed in claim 66 , wherein the first sub-electrodes and the second sub-electrodes are laminar electrodes, spherical electrodes, or grating type electrodes.
68 . The light emitting device as claimed in claim 62 , further comprising:
a reflection layer, at least disposed on a part of the upper surface of the encapsulant.
69 . The light emitting device as claimed in claim 68 , wherein a material of the reflection layer comprises gold, aluminium, silver, nickel, titanium, distributed Bragg reflector (DBR), a resin layer doped with reflection particles with high reflectivity or a combination thereof.
70 . The light emitting device as claimed in claim 62 , further comprising:
a wavelength conversion material, wrapping the light emitting unit and at least exposing a part of the first electrode and a part of the second electrode.
71 . The light emitting device as claimed in claim 70 , wherein the wavelength conversion material comprises a fluorescent material or a quantum dot material.
72 . The light emitting device as claimed in claim 70 , wherein the wavelength conversion material is formed on a surface of the light emitting unit, formed on a surface of the encapsulant or mixed in the encapsulant.
73 . A light emitting device, comprising:
a light emitting unit, comprising:
a substrate;
an epitaxial structure layer, disposed on the substrate; and
a first electrode and a second electrode, respectively disposed on a same side of the epitaxial structure layer opposite to the substrate;
a light transmissive layer, disposed on the light emitting unit and located at one side of the substrate opposite to the epitaxial structure layer, the first electrode and the second electrode; and
an encapsulant, located between the light emitting unit and the light transmissive layer, and encapsulating the light emitting unit and at least exposing a part of the first electrode and a part of the second electrode, wherein the first electrode and the second electrode respectively extend upward from the epitaxial structure layer without covering an upper surface of the encapsulant.
74 . The light emitting device as claimed in claim 73 , wherein the first electrode comprises a first electrode portion and a first electrode extending portion, and the second electrode comprises a second electrode portion and a second electrode extending portion, wherein the first electrode extending portion and the second electrode extending portion respectively protrude out from the upper surface of the encapsulant.
75 . The light emitting device as claimed in claim 74 , wherein the first electrode extending portion and the second electrode extending portion are aligned with or contracted inward relative to an edge of the upper surface of the encapsulant.
76 . The light emitting device as claimed in claim 73 , further comprising:
one or a plurality of flat surfaces, each comprising the light transmissive layer and the encapsulant.
77 . The light emitting device as claimed in claim 74 , wherein the first electrode extending portion and the second electrode extending portion respectively comprise a plurality of sub-electrodes separated from each other.
78 . The light emitting device as claimed in claim 77 , wherein the first sub-electrodes and the second sub-electrodes are laminar electrodes, spherical electrodes, or grating type electrodes.
79 . The light emitting device as claimed in claim 73 , further comprising:
a reflection layer, at least disposed on a part of the upper surface of the encapsulant.
80 . The light emitting device as claimed in claim 79 , wherein a material of the reflection layer comprises gold, aluminium, silver, nickel, titanium, distributed Bragg reflector (DBR), a resin layer doped with reflection particles with high reflectivity or a combination thereof.
81 . The light emitting device as claimed in claim 73 , further comprising:
a wavelength conversion material, wrapping the light emitting unit and at least exposing a part of the first electrode and a part of the second electrode.
82 . The light emitting device as claimed in claim 81 , wherein the wavelength conversion material comprises a fluorescent material or a quantum dot material.
83 . The light emitting device as claimed in claim 81 , wherein the wavelength conversion material is formed on a surface of the light emitting unit, formed on a surface of the encapsulant or mixed in the encapsulant.