Source: http://www.patentsencyclopedia.com/app/20130264538
Timestamp: 2018-04-22 03:45:05
Document Index: 764019652

Matched Legal Cases: ['art.\n4', '§119', 'Application No10', 'art 712', 'art 714', 'art 712', 'art 712', 'art 712', 'art 712', 'art 712', 'art 732', 'art 734', 'art 736', 'art 732', 'art 734', 'art 736', 'art 736', 'art 712', 'art 714', 'art 742', 'art 744', 'art 742', 'art 712', 'art 742', 'art 712', 'art 744', 'art 744', 'art 714', 'art 714', 'art 744', 'art 714', 'art 714', 'art 714', 'art 744', 'art 714', 'art 744', 'art 744', 'art 744', 'art 824', 'art 822', 'art 812', 'art 934', 'art 714', 'art 932', 'art 712', 'art 932', 'art 712', 'art 932', 'art 932', 'art 932', 'art 712', 'art 944', 'art 942', 'art 942', 'art 932']

Patent application number: 20130264538
1. A light emitting lamp comprising: a light source module including at least one light source disposed on a substrate and a light guide layer disposed on the substrate burying the at least one light source; and a housing accommodating the light source module, wherein the at least one light source includes: a body having a cavity; a first lead frame including one end exposed to the cavity and the other end passing through the body and exposed to one surface of the body; a second lead frame including one end exposed to one portion of the surface of the body, the other end exposed to another portion of the surface of the body, and an intermediate part exposed to the cavity; and at least one light emitting chip including a first semiconductor layer, an active layer and a second semiconductor layer, and disposed on the first lead frame.
2. The light emitting lamp according to claim 1, wherein the first lead frame includes: a first upper surface part which is exposed to the cavity and on which the at least one light emitting chip is disposed; and a first side surface part bent from a first side portion of the first upper surface part and exposed to the surface of the body.
3. The light emitting lamp according to claim 2, wherein the first lead frame further includes at least one through hole formed adjacent to a boundary part between the first upper surface part and the first side surface part.
4. The light emitting lamp according to claim 3, wherein the first lead frame further includes connection parts connecting the first upper surface part and the first side surface part, and the at least one through hole is located between the connection parts.
5. The light emitting lamp according to claim 4, wherein the length of a first connection part aligned with the at least one light emitting chip from among the connection parts is greater than the length of a second connection part not aligned with the at least one light emitting chip, and the first direction is the X-axis direction in an XYZ coordinate system.
6. The light emitting lamp according to claim 3, wherein the second lead frame includes: a second upper surface part disposed around at least one side portion of the first upper surface part and exposed to the cavity of the body; and a second side surface part bent from the second upper surface part and exposed respectively to the one portion and the another portion of the surface of the body.
7. The light emitting lamp according to claim 1, wherein the light source module further includes a heat dissipation member disposed on the lower surface of the substrate.
8. The light emitting lamp according to claim 1, wherein the at least one light source is a side view type light emitting device package.
9. The light emitting lamp according to claim 1, wherein the substrate includes at least one via hole.
10. The light emitting lamp according to claim 1, wherein the light source module is a surface light source.
11. The light emitting lamp according to claim 1, wherein the light source module further includes a reflective sheet disposed between the substrate and the light guide layer.
12. The light emitting lamp according to claim 11, wherein the light source module further includes reflective patterns disposed on the reflective sheet.
13. The light emitting lamp according to claim 12, wherein the light source module further includes a first optical sheet disposed on the light guide layer and dispersing light emitted from the light guide layer.
14. The light emitting lamp according to claim 13, wherein the light source module further includes optical patterns disposed on the first optical sheet and blocking or reflecting light emitted from the at least one light source.
15. The light emitting lamp according to claim 14, wherein the light source module further includes a second optical sheet disposed on the first optical sheet and the optical patterns.
16. The light emitting lamp according to claim 15, wherein the light source module further includes a diffusion plate disposed on the second optical sheet.
17. The light emitting lamp according to claim 1, wherein the light guide layer is formed of a UV curable resin including an oligomer.
18. The light emitting lamp according to claim 17, wherein the UV curable resin includes at least one selected from among the group consisting of urethane acrylate, epoxy acrylate, polyester acrylate, polyether acrylate, polybutadiene acrylate and silicon acrylate.
19. The light emitting lamp according to claim 1, wherein the light guide layer is formed of a thermosetting resin including at least one selected from among the group consisting of a polyester polyol resin, an acryl polyol resin, a hydrocarbon-based solvent and/or an ester-based solvent.
20. The light emitting lamp according to claim 1, wherein the light guide layer includes a diffusion material diffusing light including at least one selected from the group consisting of silicon, silica, glass bubbles, PMMA, urethane, Zn, Zr, Al2O3 and acryl.
21. The light emitting lamp according to claim 1, wherein the light source module further includes at least one connector disposed on the substrate to be electrically connected to the outside.
22. The light emitting lamp according to claim 21, wherein the substrate includes a coupling fixing part to be coupled with the outside.
23. The light emitting lamp according to claim 16, further comprising a plurality of lenses disposed on the diffusion plate.
24. The light emitting lamp according to claim 1, wherein the substrate includes a circuit pattern and an insulating layer, and has flexibility.
25. The light emitting lamp according to claim 1, wherein the at least one light emitting chip emits red light having a wavelength range of 600 nm˜690 nm.
26. A light emitting lamp comprising: a light source module including at least one light source disposed on a substrate and a light guide layer disposed on the substrate to surround the at least one light source; and a housing for the light source module, wherein the at least one light source includes: a body having a cavity; a first lead frame having a first surface and a second surface; a second lead frame having a first surface, a second surface and a third surface; and at least one light emitting chip disposed on the first surface of the first lead frame, wherein the first surface of the first lead frame and the first surface of the second lead frame is positioned on a surface in the cavity and the second surface of the first lead frame and the second surface of the second lead frame are positioned outside the cavity, and wherein the first surface of the first lead frame is positioned adjacent to the first surface of the second lead frame, and the second surface of the first lead frame is positioned adjacent to the second and third surfaces of the second lead frame, and the second surface of the first lead frame is positioned between the second and third surfaces of the second lead frame.
27. The light emitting lamp of claim 26, wherein the second and third surfaces of the second lead frame are positioned coplanar to the second surface of the first lead frame.
28. The light emitting lamp of claim 26, wherein the first surfaces of the first and second lead frames are positioned coplanar to each other.
29. A light emitting lamp comprising: a light source module including at least one light source disposed on a substrate and a light guide layer disposed on the substrate to surround the at least one light source; and a housing for the light source module, wherein the at least one light source includes: a body having a cavity; a first lead frame having a first surface and a second surface; a second lead frame having a first surface, a second surface and a third surface; and at least one light emitting chip disposed on the first surface of the first lead frame, wherein the first surface of the first lead frame and the first surface of the second lead frame are positioned on a surface in the cavity and the second surface of the first lead frame and the second and third surfaces of the second lead frame are positioned outside the cavity, and wherein the first surface of the first lead frame is positioned adjacent to the first surface of the second lead frame inside the cavity, along a length of the second lead frame inside the cavity.
[0001] This application claims priority under 35 U.S.C. §119 to Korean Patent Application No10-2012-0036648, filed in Korea on Apr. 9, 2012, which is hereby incorporated in its entirety by reference as if fully set forth herein.
[0023] The at least one light emitting chip may emit red light having a wavelength range of 600 nm˜690 nm
[0114] An air gap 80 may be formed between the diffusion plate 70 and the light guide layer 40. The air gap 80 may increase uniformity of light supplied to the diffusion plate 70, and consequently increase uniformity of light diffused and emitted via the diffusion plate 70. Here, in order to minimize deviation of light transmitted by the light guide layer 40, the thickness of the first air gap 80 may be in the range of exceeding 0 mm and less than 20 mm but the disclosure is not limited thereto. That is, the thickness of the first air gap 80 may be changed as needed. Although not shown in the drawings, in accordance with another embodiment, one or more optical sheets may be disposed on the optical pattern layer 50-1.
[0160] Each of the sub-light source modules 101-1 to 101-n includes at least one connector (for example, 510, 520 and 530) connectable to the outside. For example, a first sub-light source module 101-1 may include a first connector 510 including at least one terminal (for example, terminals 51 and S2). A second sub-light source module 101-2 may include a first connector 520 and a second connector 530 respectively connected to the outside, the first connector 520 may include at least one terminal (for example, terminals P1 and P2), and the second connector 530 may include at least one terminal (for example, terminals Q1 and Q2). Here, the first terminals 51, P1 and Q1 are positive (+) terminals, and the second terminals S2, P2 and Q2 are negative (-) terminals. Although FIG. 21 exemplarily illustrates the respective connectors (for example, 510, 520 and 530) as including two terminals, the number of terminals is not limited thereto.
[0181] For example, the length X1 of the package body 610 in a first direction (for example, in the X-axis direction) may be 5.95 mm˜6.05 mm and the length Y1 of the package body 610 in a second direction (for example, in the Y-axis direction) may be 1.35 mm˜1.45 mm The length Y2 of the package body 610 in a third direction (for example, in the Z-axis direction) may be 1.6 mm˜7 mm For example, the first direction may be a direction in parallel with the long side of the package body 610.
[0182] The package body 610 may include a cavity 601 provided with an opened upper portion and including a side wall 602 and a bottom 603. The cavity 601 may be formed in a cup shape and a concave container shape, and the side wall 602 of the cavity 601 may be vertical to or inclined with respect to the bottom 603. The shape of the cavity 601 seen from the top may be a circle, an oval or a polygon (for example, a rectangle). The corners of the polygonal cavity 601 may be curved. For example, the length X3 of the cavity 601 in the first direction (for example, in the X-axis direction) may be 4.15 mm˜4.25 mm the length X4 of the cavity 601 in the second direction (for example, in the Y-axis direction) may be 0.64 mm˜0.9 mm and the depth Y3 of the cavity 601 (for example, the length of the cavity 601 in the Z-axis direction) may be 0.33 mm˜0.53 mm
[0187] A separation distance X2 between the first lead frame 620 and the second lead frame 630 may be 0.1 mm˜0.2 mm The upper surface of the first lead frame 620 and the upper surface of the second lead frame 630 may be coplanar with the bottom 603 of the cavity 601.
[0191] As shown in FIG. 33, both ends of the first upper surface part 712 may include a protrusion S3 protruding in the first direction (in the X-axis direction) with respect to the first side surface part 714. The protrusions S3 of the first upper surface part 712 may support the first lead frame of a lead frame array. The length of the protrusions S3 of the first upper surface part 712 in the first direction may be 0.4 mm˜0.5 mm The length K of the first upper surface part 712 in the first direction may be 3.45 mm˜3.55 mm and the length J1 of the first upper surface part 712 in the second direction may be 0.6 mm˜0.7 mm The first direction may be the X-axis direction and the second direction may be the Y-axis direction in the XYZ coordinate system.
[0193] Although the depression 701 shown in FIG. 33 has a trapezoidal shape, the disclosure is not limited thereto and the depression 701 may have various shapes, such as a circular shape, a polygonal shape, an oval shape, etc. The length S2 of the depression 701 in the first direction may be 1.15 mm˜1.25 mm and the length S1 of the depression 701 in the second direction may be 0.4 mm˜0.5 mm
[0194] The angle θ1 formed by a bottom 701-1 and a side surface 701-2 of the depression 701 may be 90° or more and be smaller than 180°. The light emitting chips 642 and 633 may be disposed on the first upper surface part 712 at both sides of the depression 701.
[0200] In order to improve the coupling degree with the package body 610, to facilitate bending of the first lead frame 620 and to prevent damage to the first lead frame 620 during bending of the first lead frame 620, the light emitting device package in accordance with this embodiment may include the first through hole 722 and the second through hole 724, the length D11 of the first through hole 722 in the first direction and the length D12 of the second through hole 724 in the first direction may be 0.58 mm˜0.68 mm and the length D2 of the first and second through holes 722 and 724 in the second direction may be 0.19 mm˜0.29 mm The area of the first through hole 722 may be equal to the area of the second through hole 724, but the disclosure is not limited thereto and the areas of the first and second through holes 722 and 724 may be different.
[0204] The length C11 of the first connection part 732 in the first direction and the length C2 of the second connection part 734 in the first direction may be greater than the length E of the third connection part 736 in the first direction. For example, the length C11 of the first connection part 732 in the first direction and the length C2 of the second connection part 734 in the first direction may be 0.45 mm˜0.55 mm and the length E of the third connection part 736 in the first direction may be 0.3 mm˜0.4 mm The reason for location of the third connection part 736 between the first through hole 722 and the second through hole 724 is to prevent cut between the first upper surface part 712 and the first side surface part 714 during bending of the first lead frame 620.
[0209] The length F1 of the upper end 714-1 in the third direction may be 0.6 mm˜0.7 mm and the length F2 of the lower end 714-2 in the third direction may be 0.4 mm˜0.5 mm The third direction may be the Z-axis direction in the XYZ coordinate system.
[0210] In order to improve coupling with the package body 610 and air tightness to block moisture, the side surface of the upper end 714-1 and the side surface of the lower end 714-2 may be stepped. For example, both side ends of the lower end 714-2 may protrude in the sideward direction with respect to the side surface of the upper end 714-1. The length B1 of the upper end 714-1 in the first direction may be 2.56 mm˜2.66 mm and the length B2 of the lower end 714-2 in the first direction may be 2.7 mm˜3.7 mm The thickness t1 of the first lead frame 620 may be 0.1 mm˜0.2 mm
[0212] The second lead frame 630 may include a second upper surface part 742 and a second side surface part 744. The second upper surface part 742 may be disposed to surround remaining side portions except for a first side portion of the first upper surface part 712. As shown in FIGS. 28 and 32, the second upper surface part 742 may be coplanar with the bottom 603 of the cavity 601 and the first upper surface part 712, and be exposed by the cavity 601. The thickness t2 of the second lead frame 630 may be 0.1 mm˜0.2 mm
[0214] The length H1 of the first portion 742-1 and the third portion 742-3 in the second direction may be 0.65 mm˜0.75 mm and the length H2 of the first portion 742-1 and the third portion 742-3 in the first direction may be 0.78 mm˜0.88 mm The length l of the second portion 742-2 in the first direction may be 4.8 mm˜4.9 mm
[0216] The length S5 of the protrusion 702 in the first direction may be 0.85 mm˜0.95 mm the length S4 of the protrusion 702 in the second direction may be 0.3 mm˜0.4 mm and the angle θ2 formed by the protrusion 702 and the second portion 742-2 may be 90° or more and be smaller than 180°.
[0219] The first portion 744-1 and the second portion 744-2 of the second side surface part 744 may be bent to be located on the same side surface of the second lead frame 630. The first portion 744-1 of the second side surface part 744 may be separated from the first side surface part 714, and may be located at one side (for example, the left side) of the first side surface part 714. The second portion 744-2 of the second side surface part 744 may be separated from the first side surface part 714, and may be located at the other side (for example, the right side) of the first side surface part 714. The first side surface part 714 and the second side surface part 744 may be coplanar with each other. Consequently, as shown in FIG. 28, the first side surface part 714 and the second side surface part 744 may be exposed to the same side surface of the package body 610. The length A of the second side surface part 744 in the first direction may be 0.4 mm˜0.5 mm and the length G of the second side surface part 744 in the third direction may be 1.05 mm˜1.15 mm
[0251] The second lead frame 820 may be disposed around at least side portion of the first lead frame 810. The second lead frame 820 may include a second upper surface pat 822 and a third side surface part 824. The second upper surface part 822 may be divided into a first portion 832 and a second portion 834 according to positions disposed around the first upper surface part 812.
[0257] The first side surface part 934 may have the same structure as the first side surface part 714 shown in FIG. 32. The length P1 of the first upper surface part 932 in the first direction may be smaller than the length of the first upper surface part 712 shown in FIG. 32, and the length J2 of the first upper surface part 932 in the second direction may be greater than the length J1 of the first upper surface part 712. For example, the length P1 of the first upper surface part 932 in the first direction may be 4.8 mm˜4.9 mm and the length J2 of the first upper surface part 932 in the second direction may be 0.67 mm˜0.77 mm Therefore, since the area of the first upper surface part 932 shown in FIG. 41 is greater than the area of the first upper surface part 712 shown in FIG. 32, the light emitting device package 200-2 in accordance with the embodiment of FIG. 41 may mount light emitting chips having a larger size. The sizes of the first side surface part 944, through holes 722 and 724 and connection parts may be equal to those shown in FIG. 33.
[0261] For example, the length P2 of the first portion 942-1 and the second portion 942-2 of the second upper surface part 942 in the first direction may be 1.04 mm˜14 mm and the length P2 of the first portion 942-1 and the second portion 942-2 of the second upper surface part 942 in the second direction may be 0.45 mm˜0.55 mm
[0262] The length S22 of protrusions of the first upper surface part 932 protruding to support the first lead frame 620' of a lead frame array in the first direction may be 0.14 mm˜0.24 mm
[0272] FIG. 47 is a cross-sectional view of a light emitting chip shown 640 in FIG. 28 in accordance with one embodiment. The light emitting chip 640 shown in FIG. 47 may be a vertical type chip which emits red light having a wavelength range of, for example, 600 nm˜690 nm
[0282] The second semiconductor layer 1844 is disposed on the window layer 1842. The second semiconductor layer 1844 may be formed of a group 3-5 or group 2-6 compound semiconductor, and may be doped with a second conductivity-type dopant. For example, the second semiconductor layer 1844 may be formed of one of AlGaInP, GaInP, GaN, AlN, AlGaN, InGaN, InN, InAlGaN, AlInN, AlGaAs, GaP, GaAs and GaAsP, and may be doped with a P-type dopant (for example, Mg, Zn, Ca, Sr or Ba).
[0285] For example, the active layer 1846 may be formed in a single quantum or multi-quantum well structure including well layers and barrier layers. The well layers may be formed of a material having a lower energy band gap than the barrier layers. For example, the active layer 1846 may be formed of AlGaInP or GaInP.
[0286] The first semiconductor layer 1848 may be formed of a compound semiconductor. The first semiconductor layer 1848 may be formed of a group 3-5 or group 2-6 compound semiconductor, and may be doped with a first conductivity-type dopant. For example, the first semiconductor layer 1848 may be formed of one of AlGaInP, GaInP, GaN, AlN, AlGaN, InGaN, InN, InAlGaN, AIInN, AlGaAs, GaP, GaAs and GaAsP, and may be doped with an N-type dopant (for example, Si, Ge or Sn).
[0287] The light emitting structure 1840 may emit red light having a wavelength range of 600 nm690 nm and the first semiconductor layer 1848, the active layer 1846 and the second semiconductor layer 1844 may have compositions which may emit red light. In order to increase light extraction efficiency, a roughness 1870 may be formed on the upper surface of the first semiconductor layer 1848.
[0297] The micro-lens array 1340 may have a structure in which a plurality of micro-lenses 1344 is disposed on a base film 1342. The respective micro-lenses 1344 may be separated from each other by a predetermined interval. The base film 1342 between the respective micro-lenses 1344 may be flat, and the respective micro-lenses 1344 may be separated from each other by a pitch of 50˜500 μm
[0309] Intervals (for example, ph1, ph2 and ph3, or pc1, pc2 and pc3) between two neighboring light emitting device packages may be different, and may be in the range of 8˜30 mm
[0310] The reason for this is that if the arrangement intervals (for example, ph1, ph2 and ph3, or pc1, pc2 and pc3) are less than 8 mm although the arrangement intervals may be changed according to consumption power of the light emitting device packages 99-1 to 99-n or 98-1 to 98-m, interference of light from the neighboring light emitting device packages (for example, 99-3 or 99-4) occurs and a visible light region may be generated. Further, if the arrangement intervals (for example, ph1, ph2 and ph3, or pct, pc2 and pc3) are more than 30 mm a dark region may be generated due to an area which light does not reach.
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