Patent Publication Number: US-RE49146-E

Title: Light emitting device package and lighting apparatus having same

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a Continuation of co-pending U.S. patent application Ser. No. 15/293,029 filed on Oct. 13, 2016, which claims priority under 35 U.S.C. 119 to Korean Patent Application No. 10-2015-0143629 filed on Oct. 14, 2015, and No. 10-2016-0122480 filed on Sep. 23, 2016, which are hereby incorporated by reference in its entirety. 
     This Application is a Continuation Reissue of U.S. patent application Ser. No. 16/354,981 filed on Mar. 15, 2019, which is a Reissue of U.S. Pat. No. 10,170,676 issued on Jan. 1, 2019, which is a Continuation of U.S. patent application Ser. No. 15/293,029 filed on Oct. 13, 2016 (now U.S. Pat. No. 9,793,457 issued on Oct. 17, 2017), which claims the priority benefit under 35 U.S.C. § 119(a) to Korean Patent Application Nos. 10-2016-0122480 filed on Sep. 23, 2016 and 10-2015-0143629 filed on Oct. 14, 2015, both filed in the Republic of Korea, all of which are hereby expressly incorporated by reference into the present application. More than one reissue application has been filed for the reissue of U.S. Pat. No. 10,170,676: the present application and U.S. patent application Ser. No. 16/354,981.  
    
    
     BACKGROUND 
     Embodiments relate to a light emitting device package and a lighting apparatus having the same. 
     Light emitting devices, as a kind of semiconductor device which converts electric energy into light, are under the spotlight as next generation light sources which replace the conventional fluorescent lamps, incandescent lamps, or the like. 
     The light emitting diodes consume only the very low power compared to the incandescent lamps which generate light by heating tungsten or the fluorescent lamps which generate light by impacting ultraviolet rays generated through a high-voltage discharge on a fluorescent substance, since the light emitting diodes generate light using the semiconductor device. 
     Further, the light emitting diodes have a long service life, fast response characteristics, and environment-friendly features compared to the conventional light sources since the light emitting diodes generate light using a potential gap of the semiconductor device. 
     According to this, many studies have been conducted to replace the conventional light sources with the light-emitting diodes and the use of the light emitting diodes has been increased as the light sources of lighting apparatuses such as various lamps, liquid crystal display devices, billboards, and street lamps used in the indoor and the outdoor. 
     SUMMARY 
     The embodiments provide a light emitting device package which is capable of improving light extraction efficiency and a lighting apparatus having the same. 
     The embodiments provide a light emitting device package which is capable of improving luminous flux and a lighting apparatus having the same. 
     According to an embodiment, the light emitting device package includes a first lead frame; a second lead frame that is spaced apart from the first lead frame; a body that is coupled to the first lead frame and the second lead frame and includes a first cavity which exposes a portion of the upper surface of the first lead frame, a second cavity which exposes a portion of the upper surface of the second lead frame, and a spacer which is disposed between the first lead frame and the second frame; at least one light emitting device that is disposed in the first cavity; and a protection device that is disposed in the second cavity. The second cavity may be disposed on a first inside surface of the first cavity and the first inside surface may be connected to an upper surface of the spacer. An area of a bottom surface of the first cavity may be equal to or less than 40% of entire area of the body. 
     According to the embodiment, the light emitting device package includes the first cavity that exposes the first lead frame on which the light emitting device is mounted and the second cavity that exposes the second lead frame on which a protection device is mounted and the area of the exposed first lead frame has a range between 20% and 40% of an entire area of the body. Therefore, the embodiment may be capable of improving loss of light which is absorbed into the first lead frame. 
     In addition, in the light emitting device package of the embodiment, the area of the exposed second lead frame has a range between 3% and 10% of the entire area of the body. Therefore, the embodiment may be capable of minimizing the loss of light. 
     Further, in the light emitting device package of the embodiment, a curvature R of a fifth inside surface of the second cavity has a range between 0.1 mm and 0.3 mm. Therefore, the embodiment may be capable of improving the light extraction efficiency by improving a total reflection of light emitted from the light emitting device. 
     Further, in a light emitting device package according to another embodiment, a reflection molding portion covering the protection device is disposed in the second cavity and thus reflects light which is provided to the protection device and is lost. Therefore, the embodiment may be capable of further improving the light extraction efficiency. 
     Further, in a light emitting device package according to another embodiment, the reflection molding portion disposed on the protection device may extend to a wire bonding portion of the protection device which is positioned on a bottom surface of the first cavity on which the light emitting device is disposed. Therefore, the another embodiment may be capable of further improving the light extraction efficiency by reducing area of the lead frame exposed from the first cavity and reflecting light which is lost by the wire bonding portion and a wire. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view illustrating a light emitting device package according to a first embodiment. 
         FIG. 2  is a plan view illustrating the light emitting device package according to the first embodiment. 
         FIG. 3  is a perspective view illustrating upper portions of a first lead frame and a second lead frame according to the first embodiment. 
         FIG. 4  is a perspective view illustrating lower portions of the first lead frame and the second lead frame according to the first embodiment. 
         FIG. 5  is a plan view illustrating the first lead frame and the second lead frame according to the first embodiment. 
         FIG. 6  is a cross-sectional view illustrating the light emitting device package taking along line I-I′ in  FIG. 2 . 
         FIG. 7  is a cross-sectional view illustrating the light emitting device package taking along line II-II′ in  FIG. 2 . 
         FIG. 8  is a graph comparing a luminous flux in a comparative example to a luminous flux in the first embodiment. 
         FIG. 9  is a cross-sectional view illustrating the light emitting device package according to a second embodiment. 
         FIG. 10  is a cross-sectional view illustrating the light emitting device package according to a third embodiment. 
         FIG. 11  is a cross-sectional view illustrating the light emitting device package according to a fourth embodiment. 
         FIG. 12  is a plan view illustrating the light emitting device package according to the fifth embodiment. 
         FIG. 13  to  FIG. 22  are plan views or cross-sectional views illustrating light emitting device packages having another embodiment of a reflection molding portion. 
         FIG. 23  is a cross-sectional view illustrating a light emitting chip which is included in a light emitting device package according to an embodiment. 
         FIG. 24  is a cross-sectional view illustrating another example of a light emitting chip which is included in a light emitting device package according to an embodiment. 
         FIG. 25  is a perspective view illustrating a display device which includes a light emitting device package according to an embodiment. 
         FIG. 26  is a cross-sectional view illustrating another example of a display device which includes a light emitting device package according to an embodiment. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     In the description of embodiments, in a case where each of layers (films), regions, patterns or structures is (are) formed “on/over” or “under” a substrate, each of layers (films), regions, pads or patterns, the “on/over” or the “under” includes a case where each of layers (films), regions, patterns or structures is (are) both “directly” and “with another layer being inserted therebetween (indirectly)” formed “on/over” or “under” a substrate, each of layers (films), regions, pads, or patterns. 
       FIG. 1  is a perspective view illustrating a light emitting device package according to a first embodiment and  FIG. 2  is a plan view illustrating the light emitting device package according to the first embodiment. 
       FIG. 3  is a perspective view illustrating upper portions of a first lead frame and a second lead frame according to the first embodiment,  FIG. 4  is a perspective view illustrating lower portions of the first lead frame and the second lead frame according to the first embodiment, and  FIG. 5  is a plan view illustrating the first lead frame and the second lead frame according to the first embodiment. 
       FIG. 6  is a cross-sectional view illustrating the light emitting device package taking along line I-I′ in  FIG. 2 , and  FIG. 7  is a cross-sectional view illustrating the light emitting device package taking along line II-II′ in  FIG. 2 . 
     As illustrated in  FIG. 1  to  FIG. 7 , a light emitting device package  110  according to the first embodiment may include a first lead frame  170 , a second lead frame  180 , a body  120 , a protection device  160 , and a first light emitting device  151  and a second light emitting device  153 . 
     The first lead frame  170  and the second lead frame  180  may be coupled to the body  120  in a state of being spaced apart from each other by a fixed distance. The first light emitting device  151  and the second light emitting device  153  may be mounted on the first lead frame  170  and the protection device  160  may be mounted on the second lead frame  180 . A width of the first lead frame  170  may be greater than a width of the second lead frame  180 . However, it is not limited to this. The first lead frame  170  and the second lead frame  180  may include conductive material. For example, the first lead frame  170  and the second lead frame  180  may include at least one of titanium (Ti), copper (Cu), nickel (Ni), gold (Au), chrome (Cr), tantalum (Ta), platinum (Pt), tin (Sn), silver (Ag), phosphorus (P), iron (Fe), zinc (Zn), and aluminum (Al) and may be formed in a single layer or multiple layers. 
     The first lead frame  170  may include an upper portion surface  170 a on which the first light emitting device  151  and the second light emitting device  153  are mounted and a lower portion surface  170 b which is exposed from a lower portion of the body  120 . The upper portion surface  170 a and the lower portion  170 b of the first lead frame  170  may be flat surfaces. The first lead frame  170  may include a first recess portion  171  which is disposed on the upper portion surface  170 a of the first lead frame  170  and a first stepped portion  173  which is disposed on the lower portion surface  170 b of the first lead frame  170 . The first recess portion  171  may have a shape which is concave from the upper portion surface  170 a of the first lead frame  170  in the direction of the lower portion surface  170 b. The first recess portion  171  may be adjacent to an edge of the upper portion surface  170 a. The first recess portion  171  may have a ring shape or a rectangular strip shape. However, it is not limited to this. The first recess portion  171  may have a round shape of which edges are bent. However, it is not limited to this. The first recess portion  171  may be improved a coupling force with the body  120  by increasing a contacting area with the body  120 . Further, the first recess portion  171  may prevent external moisture penetration by a concave structure. The first recess portion  171  may be formed by being etched a portion of the upper portion surface  170 a of the first lead frame  170 . However, it is not limited to this. A depth of the first lead frame  171  may be 50% of a thickness of the first lead frame  170 . However, it is not limited to this. For example, the depth of the first lead frame  171  may be equal to or less than 50% of the thickness of the first lead frame  170 . The first recess portion  171  may be spaced apart from the first stepped portion  173  by a fixed distance. In other words, the first recess portion  171  may do not include a region which is vertically overlapped with the first stepped portion  173 . 
     The first recess portion  171  may be disposed on the outside of the first cavity  130  which exposes a portion of the upper portion of the first lead frame  170  from the body  120 . The first recess portion  171  may be disposed on the inside of the first stepped portion  173 . Specifically, the first recess portion  171  may be disposed in the area which is between 5% and 30% of a minor axis width of the first lead frame  170  from the outside surface of the first lead frame  170 . Here, a major axis of the first lead frame  170  is X-X′ and the minor axis of the first lead frame  170  is Y-Y′. 
     In a case where the first recess portion  171  is disposed on an area which is less than  55  of the minor axis width of the first lead frame  170  from the outside surface of the first lead frame  170 , the first recess portion  171  reduces a coupling force with the body  120  by reducing the width and the area of the first stepped portion  173  and thus may be difficult to prevent external moisture penetration. In a case where the first recess portion  171  is disposed on an area which is greater than 30% of the minor axis width of the first lead frame  170  from the outside surface of the first lead frame  170 , the first recess portion  171  reduces a coupling force with the body  120  by a portion thereof being exposed to the first cavity  130  and thus may be difficult to prevent the external moisture penetration. For example, in a case where the minor width of the first lead frame  170  is 1,920 mm, the first recess portion  171  may be disposed in the region spaced apart from an adjacent outside surface of the first lead frame  170 . 
     The first recess portion  171  may include a fixed width. For example, the first recess frame  171  may include 3% to 15% of width of the minor axis width of the first lead frame  170 . In a case where the width of the first recess portion  171  is equal to or less than 3% of the minor axis width of the first lead frame  170 , the first recess portion  171  reduces a coupling force with the body  120  by reducing a contacting area with the body  120  and thus may be difficult to prevent the external moisture penetration. In a case where the width of the first recess portion  171  is greater than 15% of the minor axis width of the first lead frame  170 , rigidity of the first lead frame  170  may be reduced. For example, in a case where the minor width of the first lead frame  170  is 1,920 mm, the width of the first recess portion  171  may be between 50 μm and 290 μm. 
     The first stepped portion  173  may be disposed on the edge of the lower portion surface  170 b of the first lead frame  170 . The first stepped portion  173  may be connected along the edge of the lower portion surface  170 b of the first lead frame  170 . The first stepped portion  173  may has a recess shape and a cross-sectional surface thereof may have a stepped structure. However, it is not limited to this. The first stepped portion  173  may be improved a coupling force with the body  120  by increasing a contacting area with the body  120 . Further, the first stepped portion  173  may prevent the external moisture penetration by a stepped structure. The first stepped portion  173  may be formed by being etched a portion of an edge of the lower portion surface  170 b of the first lead frame  170 . However, it is not limited to this. A thickness of the first stepped frame  173  may be 50% of the thickness of the first lead frame  170 . However, it is not limited to this. For example, the thickness of the first stepped frame  173  may be equal to or greater than 50% of the thickness of the first lead frame  170 . The first stepped portion  173  may be further disposed on the outside than the first recess portion  171 . 
     The first lead frame  170  may include first projecting portions  177  projected in the outside direction. The first recess portions  177  may be spaced apart from the first stepped portion  173  in the outside direction. In other words, the thickness of the first projections  177  may be thinner than the thickness of the first lead frame  170 . The horizontal width of each of the first projecting portions  177  may be different from each other. However, it is not limited to this. The ends of the first projecting portions  177  may be exposed from the outside surface of the body  120  to the outside. Even if not illustrated in drawings, units of the first lead frame  170  and the second lead frame  180  are made by processing a metal frame (not illustrated) with a press and then may be separated from a state where a plurality of the first lead frames  170  and a plurality of the second lead frames  180  are connected with each other after the injection process of the body  120 . In other words, the plurality of the first lead frames  170  and the plurality of the second lead frames  180  may be include a hanger (not illustrated) for connecting the plurality of the first lead frames  170  and the plurality of the second lead frames  180  with each other since the injection process for coupling the bodies  120  connected with each other proceeds. The first projecting portions  177  may be a portion of the hanger connected to the first lead frame  170  in a separating process into units of the first lead frame  170  and the second lead frame  180 . 
     The first lead frame  180  may include an upper portion surface  180 a on which the protection device  160  is mounted and a lower portion surface  180 b which is exposed from a lower portion of the body  120 . The upper portion surface  180 a and the lower portion  180 b of the second lead frame  180  may be flat surfaces. The second lead frame  180  may include a second recess portion  181  which is disposed on the upper portion surface  180 a of the second lead frame  180  and a second stepped portion  183  which is disposed on the lower portion surface  180 b of the second lead frame  180 . The second recess portion  181  may have a shape which is concave from the upper portion surface  180 a of the second lead frame  180  in the direction of the lower portion surface  180 b. The second recess portion  181  may be adjacent to the edge of the upper portion surface  180 a of the second lead frame  180 . The second recess portion  181  may be disposed to be parallel in the longitudinal direction of the second lead frame  180 . The second recess portion  181  may have both ends which have a bent shape. However, it is not limited to this. The second recess portion  181  may include have both ends which have a bent shape to face each other. However, it is not limited to this. The second recess portion  181  may be improved a coupling force with the body  120  by increasing a contacting area with the body  120 . Further, the second recess portion  181  may prevent the external moisture penetration by a concave structure. The second recess portion  181  may be formed by etching a portion of the upper portion surface  180 a of the second lead frame  180 . However, it is not limited to this. A depth of the second lead frame  181  may be 50% of a thickness of the second lead frame  180 . However, it is not limited to this. For example, the depth of the second lead frame  181  may be equal to or less than 50% of a thickness of the second lead frame  180 . The second recess portion  181  may be spaced apart from the second stepped portion  183  by a fixed distance. In other words, the second recess portion  181  may not include a region which is vertically overlapped with the second stepped portion  183 . 
     The second recess portion  181  may be disposed on the outside of the second cavity  140  which exposes the portion of the upper portion of the second lead frame  180  from the body  120 . The second recess portion  181  may be disposed on the inside of the second stepped portion  183 . Specifically, the both ends  180 e of the second recess portion  181  may be disposed in the area which is between 15% and 85% of a minor axis width of the second lead frame  180  from the outside surface of the second lead frame  180  which is furthest from the first lead frame  170 . Here, a major axis of the second lead frame  180  is X-X′ and the minor axis of the second lead frame  180  is Y-Y′. 
     In a case where the second recess portion  181  is disposed on an area which is less than 15% of the minor axis width of the second lead frame  180  from the outside surface of the second lead frame  180 , the second recess portion  171  reduces a coupling force with the body  120  by reducing the width and the area of the second stepped portion  183  and thus may be difficult to prevent the external moisture penetration. In a case where the second recess portion  181  is disposed on an area which is greater than 85% of the minor axis width of the second lead frame  180  from the outside surface of the second lead frame  180 , a portion of the second recess portion  181  is exposed to the second cavity  140  or the second recess portion  171  is reduced a coupling force with the body  120  by reducing the width and the area of the second stepped portion  183  and thus may be difficult to prevent the external moisture penetration. For example, in a case where the minor width of the first lead frame  180  is 0.680 mm, both ends  180 e of the second recess portion  181  may be disposed in the region spaced apart by 180 μm to 580 μm from the outside surface of the second lead frame  180  which is furthest from the first lead frame  170 . 
     The second recess portion  181  may include a fixed width. For example, the second recess portion  181  may include 7% to 43% of width of the minor axis width of the second lead frame  180  from the body  120 . In a case where the width of the second recess portion  181  is less than 7% of the minor axis width of the second lead frame  180 , the second recess portion  181  reduces a coupling force with the body  120  by reducing a contacting area with the body  120  and thus may be difficult to prevent external moisture penetration. In a case where the width of the second lead frame  181  is greater than 43% of the minor axis width of the second lead frame  180  and thus rigidity of the second lead frame  180  may be reduced. For example, in a case where the minor width of the second lead frame  180  is 0.680 mm, the width of the second recess portion  181  may be between 50 μm and 290 μm. 
     The second recess portion  181  may include a rectilinear portion  181 l, a bent portion  181 c and both ends  181 e along the major axis of the second recess portion  181  about a center portion C of the second recess portion  181 . The bent portion  181 c may be bent in a second direction Y of the minor axis of the second lead frame  180 . The bent portion  181 c may be spaced apart from the rectilinear portion  181 l by a fixed distance. The bent portion  181 c may be disposed between 20% and 80% of a major axis length or width of the major axis of the second recess portion  181  from the center portion C of the second recess portion  181  in the major axis (X-X′) direction of the second lead frame  180 . For example, a boundary region  181 b between the bent portion  181 c and the rectilinear portion  181 l may be disposed between 20% and 80% of the second recess portion  181  from the center portion C of the second recess portion  181  in the major axis (X-X′) direction of the second lead frame  180 . 
     The second stepped portion  183  may be disposed on the edge of the lower portion surface  180 b of the second lead frame  180 . The second stepped portion  183  may be connected along the edge of the lower portion surface of the second lead frame  180 . The second stepped portion  183  may has a recess shape and a cross-sectional surface thereof may have a stepped structure. However, it is not limited to this. The second stepped portion  183  may be improved a coupling force with the body  120  by increasing a contacting area with the body  120 . Further, the second stepped portion  183  may prevent the external moisture penetration by a stepped structure. The second stepped portion  183  may be formed by being etched a portion of an edge of the lower portion surface  180 b of the second lead frame  180 . However, it is not limited to this. A thickness of the second stepped frame  183  may be 50% of the thickness of the second lead frame  180 . However, it is not limited to this. For example, the thickness of the second stepped portion  183  may be equal to or greater than 50% of the thickness of the second lead frame  180 . The second stepped portion  183  may be further disposed on the outer than the second stepped portion  181 . 
     The second lead frame  180  may include second projecting portions  187  projected in the outside direction. The second recess portions  187  may be projected from the third stepped portion  183  in the outside direction. In other words, the thickness of the second projections  187  may be thinner than the thickness of the second lead frame  180 . The horizontal width of each of the second projecting portions  187  may be different from each other. However, it is not limited to this. The ends of the second projecting portions  187  may be exposed from the outside surface of the body  120  to the outside. The second projecting portions  187  may be a portion of the hanger connected to the second lead frame  180  in a separating process into units of the first lead frame  180  and the second lead frame  180 . 
     The first light emitting device  151  and the second light emitting device  153  may be disposed on the first lead frame  170 . The first light emitting device  151  and the second light emitting device  153  may be disposed on the upper portion surface of the first lead frame  170  which is exposed from the body  120 . Even if the first light emitting device  151  and the second light emitting device  153  according to the embodiment is described as two configurations connected to each other in series, it is not limited to this. In other words, they may be a single configuration, may be configured to be in an array form, or may be at least three configurations. The first light emitting device  151  and the second light emitting device  153  may be connected through a wire W. However, it is not limited to this. The first light emitting device  151  and the second light emitting device  153  is spaces apart from each other and the first light emitting device  151  and the second light emitting device  153  may be symmetrically disposed in a diagonal direction of the first lead frame  170  on the upper portion surface of the first lead frame  170  exposed from the body  120 . However, it is not limited to this. 
     The protection device  160  may be disposed on the second lead frame  180 . The protection device  160  may be disposed on the upper portion surface of the second lead frame  180  which is exposed from the body  120 . The protection device  160  may be a Zener diode, a thyristor, a transient voltage suppression (TVS), or the like. However, it is not limited to this. The protection device  160  according to the embodiment describes the Zener diode which protects the first light emitting device  151  and the second light emitting device  153  from electro static discharge (ESD) as an example. The protection device  160  may be connected to the first lead frame  170  through a wire W. 
     The body  120  may include at least one of translucent material, reflective material, and insulating material. The body  120  may include material of which reflectivity is higher than permeability, for light emitted from the first light emitting device  151  and the second light emitting device  153 . The body  120  may be resin based insulating material. The body  120  may be made of at least one of polyphthalamide (PPA), resin material such as epoxy or silicone material, silicon (Si), metallic material, photo sensitive glass (PSG), sapphire (Al2O3), a printed circuit board (PCB), for example. The body  120  may include an outside surface having a fixed curvature or an outside surface having an angled surface. A plan view shape of the body may be a circular shape or a polygonal shape, for example. The body  120  according to the embodiment is described a polygonal shape which include a first outside surface  121  to a fourth outside surface  124 , as an example. 
     The body  120  may be coupled with the first lead frame  170  and the second lead frame  180 . The body  120  may include a first cavity  130  which exposes a portion of the upper portion of the first lead frame  170 . 
     The body  120  may include a spacer  126  which is disposed between the first lead frame  170  and the second lead frame  180 . The spacer  126  may be disposed on the bottom surface of the first cavity  130 . The spacer  126  may be disposed to be parallel to the first stepped portion  173  and the second stepped portion  183  which face each other. The spacer  126  may be directly in contact with the first stepped portion  173  and the second stepped portion  183 . The spacer  126  may be made of insulating material and may be a portion of the body  120 . However, it is not limited to this. The spacer  126  includes a stepped structure which corresponds to the stepped structure of the first stepped portion  173  and the second stepped portion  183 . In other words, the cross-section of the spacer  126  may have a step structure which is symmetric in the horizontal direction. The spacer  126  may be improved a coupling force since the contacting area with the first lead frame  170  and the second lead frame  180  increases by the stepped structure which is in contact with the first stepped portion  173  and the second stepped portion  183 . Therefore, the embodiment is capable of preventing the external moisture penetration. 
     The first cavity  130  may include a bottom surface which exposes the first lead frame  170  and a first inside surface  131  to the fourth inside surface  134  which positions along the edge of the exposed first lead frame  170 . The first inside surface  131  may be disposed to face the third inside surface  133 . The second inside portion  132  may be disposed to face the fourth inside surface  134 . The first inside surface  131  to the fourth inside surface  134  may be disposed to be inclined from the bottom surface of the body  120 . 
     An area of the first lead frame  170  exposed to the bottom surface of the first cavity  130  may be less than 40% of an area surrounded by the first outside surface  121  to the fourth outside surface  124  of the body  120 . For example, the area of the first lead frame  170  exposed to the bottom surface of the first cavity  130  may be between 20% and 40% of an area surrounded by the first outside surface  121  to the fourth outside surface  124  of the body  120 . Specifically, the area of the first lead frame  170  exposed to the bottom surface of the first cavity  130  may be between 12% and 26% of the area surrounded by the first outside surface  121  to the fourth outside surface  124  of the body  120 . For example, in a case where the area surrounded by the first outside surface  121  to the fourth outside surface  124  of the body  120  may be 3.0 mm×3.0 mm, the area of the first lead frame  170  exposed to the bottom surface of the first cavity  130  may be between 1.390 mm×0.840 mm and 1.390 mm×1.680 mm. 
     The embodiment is capable of improving loss of light which is absorbed into the first lead frame  170 , improving the light extraction efficiency, and increasing the luminous flux, by the area of the first lead frame  170  exposed to the bottom surface of the first cavity  130  having a range between 20% and 40% of the entire area of the body  120 . In a case where the area of the first cavity  130  is less than 20%, a problem on the mounting process of the first light emitting device  151  and the second light emitting device  153  may be generated due to constraint of space for mounting of the first light emitting device  151  and the second emitting device  153 . In a case where the area of the first cavity  130  is greater than 40%, the reflectivity may be reduced since the area of the first inside surface  131  to the fourth inside surface  134  are reduced and light extraction may be reduced due to the light loss since the exposed area of the first lead frame  170  increases and thus the light of the first light emitting device  151  and the second light emitting device  153  is absorbed into the first lead frame  170 . 
     In the embodiment, the first inside surface  131  and the third inside surface  133  of the first cavity  130  facing each other may have an inclined angle to the upper surface of the first lead frame  170  which are different from each other. The inclined angle θ 1  of the first inside surface  131  may be greater than the inclined angle θ 2  of the third inside surface  133 . However, it is not limited to this. 
     The embodiment may determine the inclined angle θ 1  of the first inside surface  131  and the inclined angle θ 2  of the third inside surface  133  which face each other according to the area of the first lead frame exposed to the bottom surface of the first cavity  130 . For example, in a case where the area of the first lead frame  170  exposed to the bottom surface of the first cavity  130  increases between 20% and 30% of the entire area of the body  120 , the inclined angle θ 1  of the first inside surface  131  may be decreased from 160 degrees to 156 degrees and the inclined angle θ 2  of the third inside surface  133  may be decreased from 140 degrees to 119 degrees. 
     The second inside surface  132  and the fourth inside surface  134  may have the inclined angles to the upper surface of the first lead frame  170  which are the same to each other. An inclined angle θ 3  of the second inside surface  132  may be the same as an inclined angle θ 4  of the fourth inside surface  134 . However, it is not limited to this. 
     The body  120  may include a second cavity  140  which expose a portion of an upper surface of the second lead frame  180 . The second cavity  140  may position on a first inside surface  131  of the first cavity  130 . The second cavity  140  is capable of exposing a portion of an upper surface of the second lead frame  180  through the first inside surface  131 . For example, a plan view shape of the first cavity  140  may be a circular, an oval, a polygonal shape. An area of the second lead frame  180  exposed to the bottom surface of the second cavity  140  may be less than 20% of an area surrounded by the first outside surface  121  to the fourth outside surface  124  of the body  120 . For example, the area of the second lead frame  180  exposed to the bottom surface of the second cavity  140  may be between 3% and 20% of an area surrounded by the first outside surface  121  to the fourth outside surface  124  of the body  120 . The embodiment is capable of improving loss of light which is absorbed into the second lead frame  180 , improving the light extraction efficiency, and increasing luminous flux, by the area of the second lead frame  180  exposed to the bottom surface of the second cavity  140  having a range between 3% and 20% of the area surrounded by the first outside surface  121  to the fourth outside surface  124  of the body  120 . In a case where the area of the second cavity  140  is less than 3%, a problem on the mounting process of the protection device  160  may be generated due to constraint of space for mounting of the protection device  160 . In a case where area of the second cavity  140  is greater than 20%, the light extraction may be decreased by a reduction of reflectivity and light loss. For example, in a case where the area surrounded by the first outside surface  121  to the fourth outside surface  124  of the body  120  may be 3.0 mm×3.0 mm, the area of the second lead frame  180  exposed to the bottom surface of the second cavity  140  may be between 0.350 mm×0.140 mm and 2 to 1.390 mm×1.680 mm. 
     The second cavity  140  may include a bottom surface which exposes the second lead frame  180  and a fifth inside surface  141  to the eighth inside surface  144  which positions along the edge of the exposed second lead frame  180 . The fifth inside surface  141  may be disposed to face the seventh inside surface  143 . The fifth inside surface  141  may have a height which is greater than the height of the seventh inside surface  143 . The sixth inside surface  142  may be disposed to face the eighth inside surface  144 . 
     The fifth inside surface  141  may have a fixed curvature R so that the light emitted from the first light emitting device  151  and the second light emitting device  153  on the first inside surface  131  is reflected in the various directions. For example, the curvature R of the fifth inside surface  141  may be in a range between 0.1 mm to 0.3 mm. The curvature R of the fifth inside surface  141  is capable of improving the light extraction efficiency by improving total reflection of light emitted from the first light emitting device  151  and the second light emitting device  153 . In a case where the curvature R of the fifth inside surface  141  is less than 0.1 mm, the light emitted from the first light emitting device  151  and the second light emitting device  153  generates the light loss since being totally reflected by a critical angle. In a case where the curvature R of the fifth inside surface  141  is greater than 0.3 mm, a problem on the process may be generated due to restrictions about the thickness and the height of the body  120 . 
     The sixth inside surface  142  to the eighth inside surface  144  may have a fixed curvature. However, it is not limited to this. For example, the sixth inside surface  142  to the eighth inside surface  144  may have a curvature only in a boundary region with the first inside surface  131  and also may have a curvature corresponding to the curvature of the fifth inside surface  141 . Further, the curvatures of the sixth inside surface  141  and the eighth inside surface  144  may differ from each other. 
     A boundary portion  131 a may be disposed between the second cavity  140  and the first lead frame  170  exposed from the first cavity  130 . The boundary portion  131 a may be disposed in the first inside surface  131 . The boundary portion  131 a may be connected with the seventh inside surface  143  of the second cavity  140 . The boundary portion  131 a may be disposed on the spacer  126 . The boundary portion  131 a may be vertically overlapped with the spacer  126 . 
     The boundary portion  131 a may have a height H so that an inside thereof facing the protection device  160  is higher than the protection device  160 . The problem that light emitted from the first light emitting device  151  and the second light emitting device  153  is lost by directly being provided to the protection device  160  is capable of improving since the inside of the boundary portion  131 a which is facing the protection device  160  has a height H which is higher than the height of the protection device  160 . For example, the height H of the boundary portion  131 a may be between 100 μm and 300 μm and the height of the protection device  160  may be less than 100 μm. However, it is not limited to this. In a case where the height H of the boundary portion  131 a is greater than 300 μm, a connection process of a wire W which connects between the protection device  160  and the first lead frame  170  may be difficult. 
     The light emitting device package  110  according to the first embodiment include the first cavity  130  which exposes the upper portion surface of the first lead frame  170  on which the first light emitting device  151  and the second light emitting device  153  are mounted and the second cavity  140  which exposes the upper portion surface of the second lead frame  180  on which the protection device  160  are mounted. The area of the first lead frame  170  exposed to the bottom surface of the first cavity  130  has a range between 20% and 40% of the entire area of the body  120  and thus loss of light absorbed into the first lead frame  170  may be prevented. Further, in the light emitting device package  110  of the embodiment, the area of the second lead frame  180  exposed to the bottom surface of the second cavity  14  has a range between 3% and 10% of the entire area of the body  120  and thus the light loss due to the second cavity  140  is minimized. 
     In the light emitting device package  110  according to the first embodiment, the curvature R of the fifth inside surface  141  of the second cavity  140  has a range between 0.1 mm and 0.3 mm. Therefore, the light extraction efficiency may be improved by improving the total reflection of right emitted from the first light emitting device  151  and the second light emitting device  153 . 
       FIG. 8  is a graph comparing a luminous flux in a comparative example to a luminous flux in the first embodiment. 
     As illustrated in  FIG. 8 , in the first embodiment, the luminous flux may be improved by at least 3.6% compared to the comparative example. 
     The comparative example includes a body which has a cavity and a first lead frame and a second lead frame which are exposed to the bottom surface of the cavity and may be a structure in which an exposed area of the first lead frame and the second lead frame is greater than 50% of the entire area of the body. 
     The embodiment is a light emitting device package adapting technical characteristics of  FIG. 1  to  FIG. 7 . 
       FIG. 9  is a cross-sectional view illustrating a light emitting device package according to a second embodiment. 
     As illustrated in  FIG. 9 , the light emitting device package according to the second embodiment may adapt technical characteristics of the light emitting device package according to the first embodiment of the  FIG. 1  to  FIG. 7 , except for a boundary portion  231 a. 
     The boundary portion  231 a may be disposed in a first inside surface  131 . The boundary portion  231 a is disposed on the spacer  126  and may disposed on a portion of the upper portion surface  170 a of the first lead frame  170  which is in contact with the spacer  126  and a portion of the upper portion surface  180 a of the second lead frame  180 . The boundary portion  231 a may have a height H which is higher than the protection device  160 . The problem that light emitted from the first light emitting device  151  and the second light emitting device  153  is lost by directly being provided to the protection device  160  is capable of being improved since the boundary portion  231 a has a height H which is higher than the height of the protection device  160 . 
     One end of the boundary portion  231 a in the minor axis direction may be disposed to be more adjacent to the first light emitting device  151  and the second light emitting device  153  than one end of the spacer  126  in the minor axis direction. An opposite end of the boundary portion  231 a in the minor axis direction may be disposed to be more adjacent to the protection device  160  than the opposite end of the spacer  126  in the minor axis direction. 
     A width D 1  of the boundary portion  231 a in the minor axis direction may be greater than the width D 2  of the spacer  126  in the minor axis direction. A width D 1  of the boundary portion  231 a in the minor axis direction may be equal to or greater than the width D 2  the lower surface of the spacer  126  in the minor axis direction. The boundary portion  231 a may be made of insulating material and may be a portion of the body  120 . However, it is not limited to this. For example, the boundary portion  231 a may be made of the same material with the material of the spacer  126 . 
     The light emitting device package according to the second embodiment may improve a coupling force with the body  129  and prevent the external moisture penetration, by widening a contacting area with the body  120  by the structure of the boundary portion  231 a covering the spacer  126 . 
       FIG. 10  is a cross-sectional view illustrating the light emitting device package according to a third embodiment. 
     As illustrated in  FIG. 10 , the light emitting device package according to the third embodiment may adapt the technical characteristics of the light emitting device package according to the first embodiment according to the  FIG. 1  to  FIG. 7 , except for a boundary portion  331 a. 
     The boundary portion  331 a may be disposed in a first inside surface  131 . The boundary portion  331 a is disposed on the spacer  126  and may disposed on a portion of the upper portion surface  170 a of the first lead frame  170  which is in contact with the spacer  126  and a portion of the upper portion surface  180 a of the second lead frame  180 . The boundary portion  331 a may have a height H which is higher than the protection device  160 . The problem that light emitted from the first light emitting device  151  and the second light emitting device  153  is lost by directly being provided to the protection device  160  is capable of being improved since the boundary portion  331 a has a height H which is higher than the height of the protection device  160 . 
     The boundary portion  331 a may cover the upper portion surface of the spacer  126 . A width D 1  of the boundary portion  331 a in the minor axis direction may be equal to or less than the width D 2  of the spacer  126  in the minor axis direction. A width D 1  of the boundary portion  331 a in the minor axis direction may be equal than or less than the width D 2  of the lower surface of the spacer  126  in the minor axis direction. The boundary portion  331 a may be made of insulating material and may be a portion of the body  120 . However, it is not limited to this. For example, the boundary portion  331 a may be made of the same material with the material of the spacer  126 . 
     The light emitting device package according to the third embodiment may improve a coupling force with the body  129  and prevent the external moisture penetration, by widening a contacting area with the body  120  due to the structure of the boundary portion  331 a covering the spacer  126 . 
       FIG. 11  is a cross-sectional view illustrating the light emitting device package according to a fourth embodiment. 
     As illustrated in  FIG. 11 , the light emitting device package according to the fourth embodiment may adapt the technical characteristics of the light emitting device package according to the first embodiment of the  FIG. 1  to  FIG. 7 , except for a boundary portion  431 a. 
     The boundary portion  431 a may be disposed in a first inside surface  131 . The boundary portion  431 a is disposed on the spacer  126  and may dispose on a portion of the upper portion surface  180 a of the second lead frame  180  which is in contact with the spacer  126 . Here, a portion of the upper portion surface of the spacer  126  may expose from the boundary portion  431 a. The boundary portion  431 a may be not contact with the upper portion surface  170 a of the first lead frame  170 . The boundary portion  431 a may have a height H which is higher than the protection device  160 . The problem that light emitted from the first light emitting device  151  and the second light emitting device  153  is lost by directly being provided to the protection device  160  is capable of being improved since the boundary portion  431 a has a height H which is higher than the height of the protection device  160 . 
     One end of the boundary portion  431 a in the minor axis direction may be disposed on the upper surface of the spacer  126 . One end of the boundary portion  431 a in the minor axis direction may be disposed to be further away from the first light emitting device  151  and the second light emitting device  153  than the opposite one end of the spacer  126  in the minor axis direction by being disposed on the upper portion surface of the spacer  126 . An opposite end of the boundary portion  431 a in the minor axis direction may be disposed to be more adjacent to the protection device  160  than the opposite end of the spacer  126  in the minor axis direction. 
     The light emitting device package according to the fourth embodiment may improve a coupling force with the body  129  and prevent the external moisture penetration, by widening a contacting area with the body  120  by the structure of the boundary portion  431 a covering a portion of the spacer  126 . 
       FIG. 12  is a cross-sectional view illustrating the light emitting device package according to the fifth embodiment. 
     As illustrated in  FIG. 12 , the light emitting device package according to the fifth embodiment may adapt the technical characteristics of the light emitting device package according to the first embodiment of the  FIG. 1  to  FIG. 7 , except for a reflection molding portion  190 . 
     The reflection molding portion  190  may is disposed in the second cavity  140 . The reflection molding portion  190  may cover the protection device  160 . An upper portion surface of the reflection molding portion  190  may be a position which is lower than the upper portion surface of the boundary portion  131 a. However, it is not limited to this. For example, the upper portion of the reflection molding portion  190  may be position on the same plane as the upper portion surface of the boundary portion  131 a. A height of the reflection molding portion  190  may be higher than the height of the protection device  160 . However, it is not limited to this. The height of the reflection molding portion  190  may be equal to or less than the height of the boundary portion  131 a. However, it is not limited to this. 
     The reflection molding portion  190  may include insulating material or reflective material. The reflection molding portion  190  may be made of at least one of polyphthalamide (PPA), poly-cyclo-hecylene dimethyl terephthalate (PCT), white silicone, and white epoxy molding compound (white EMC). However, it is not limited to this. 
     In a light emitting device package according to the fifth embodiment, the reflection molding portion  190  covering the protection device  160  is disposed in the second cavity  140  and reflects light which is absorbed into the protection device  160  and thus light extraction efficiency is capable of further improving. 
     The light emitting device package has a structure in which the first light emitting device  151  and the second light emitting device  153  are disposed on the first cavity  130 . However, it is not limited to this. In other words, the light emitting device package has a structure in which at least three light emitting devices are disposed on the first cavity  130 . 
       FIG. 13  to  FIG. 22  are plan views or cross-sectional views illustrating light emitting device packages having another embodiments of reflection molding portions  290 a to  290 e. 
     The light emitting device packages according to  FIG. 13  to  FIG. 22  may adapt the technical characteristics of the light emitting device package according to the first embodiment of the  FIG. 1  to  FIG. 7 , except for the reflection molding portions  290 a to  290 e. 
     A light emitting device package according to another embodiment may improve the light extraction efficiency. To this end, the light emitting device packages according to another embodiment may include the reflection molding portion  290 a to  290 e. The reflection molding portions  290 a to  290 e are capable of covering the protection device  160 , a first wire  160 w, and a wire bonding portion  160 a. However, it is not limited to this. For example, the reflection molding portions  290 a to  290 e may cover the protection device  160  and the wire bonding portion  160 a and cover a portion of the first wire  160 w. The reflection molding portions  290 a to  290 e may reflect the light absorbed by the protection device  160 , the first wire  160 w, and the wire bonding portion  160 a and thus the light extraction efficiency may be improved. 
     Further, the reflection molding portions  290 a to  290 e may have reflectivity which is greater than the reflectivity of the first lead frame  170 . The reflection molding portions  290 a to  290 e extend to the upper portion surface  170 a of the first lead frame  170  exposed to the first cavity  130  and thus are capable of improving the light extraction efficiency. 
     With reference to  FIG. 13  to  FIG. 15 , the reflection molding portion  290 a according to the second embodiment may be disposed on the second cavity  140 . A portion of the reflection molding portion  290 a may disposed on the upper portion surface  170 a of the first lead frame  170  exposed from the first cavity  130 . The reflection molding portion  290 a may extend to the bottom surface of the first cavity  130  which is closest to the second cavity  140 . 
     The reflection molding portion  290 a may cover a portion of the first inside surface  131  on which the second cavity  140  is disposed. The reflection molding portion  290 a may extend to the wire bonding portion  160 a of the protection device  160  disposed on the bottom surface of the first cavity  130  along the first inside surface  131  of the periphery of the second cavity  140 . For example, the reflection molding portion  290 a may be disposed along the first inside surface  131  between the second cavity  140  and the first cavity  130 . 
     Here, the wire bonding portion  160 a may be disposed on the upper portion surface  170 a of the first lead frame  170  exposed to the bottom surface of the first cavity  130  which is closest to the second cavity  140 . 
     The end  291  of the reflection molding portion  290 a may be disposed between the wire bonding portion  160 a and the first light emitting device  151  and the second emitting device  153 . The end  291  of the reflection molding portion  290 a may extend from a first boundary  291 a between the first inside surface  131  of the first cavity  130  and the end  291  of the reflection molding portion  290 a to the bottom surface of the first cavity  131 . The end  291  of the reflection molding portion  290 a may extend from a second boundary  291 b between the fourth inside surface  134  of the first cavity  130  and the end  291  of the reflection molding portion  290 a to the bottom surface of the first cavity  130 . The end  291  of the reflection molding portion  290 a may include a third boundary  291 c between the first boundary  291 a and the second boundary  291 b. The third boundary  291 c may be disposed to be parallel to the one side surface  153 c of the second light emitting device  153 . Here, the one side surface  153 s of the second light emitting device  153  may face the first light emitting device  151 . 
     The end  291  of the reflection molding portion  290 a between the second boundary  291 b and the third boundary  291 c may face the one side surface of the first light emitting device  151 . Here, the one side surface of the first light emitting device  151  may face the first inside surface  131  on which the protection device  160  is disposed. 
     The end  291  of the reflection molding portion  290 a between the first boundary  291 a and the third boundary  291 c may face an edge of the second light emitting device  153 . However, it is not limited to this. The edge of the second light emitting device  153  may be an edge which faces the protection device  160 . 
     The end  291  of the reflection molding portion  290 a may include a fixed width in a first direction X corresponding to the first inside surface  131 . For example, the end  291  of the reflection molding portion  290 a may include a first width W 1  between the first boundary  291 a and the second boundary  291 b and a second width W 2  between the second boundary  291 a and the third boundary  291 c. Here, the first width W 1  may be defined as a distance between a first reference line r 1  which extends from the first boundary  291 a in a second direction Y which is perpendicular to the first direction X and a second reference line r 2  which extends from the second boundary  291 b in the second direction Y The second width W 2  may be defined as a distance between the first reference line r 1  and a third reference line r 3  which extends from the third boundary  291 c in the second direction Y. 
     The reflection molding portion  290 a according to the second embodiment may include a second width W 2  which is one-third or less of the first width W 1 . The second embodiment is capable of improving a defect due to contact between the second light emitting device  153  and the reflection molding portion  290 a by the second light emitting device  153  and the reflection molding portion  290 a being spaced apart from each other by a fixed distance by the second width w 2 . The reflection molding portion  290 a according to the second embodiment may provide a structure which reduces an area of the upper portion surface  170 a of the first lead frame  170  exposed from the first cavity  130  and is spaced apart from the first light emitting device  151  and the second light emitting device  153  by a fixed distance. Accordingly, the reflection molding portion  290 a according to the second embodiment may improve the light extraction efficiency and improve reliability. 
     The first light emitting device  151  and the second light emitting device  153  may be disposed in the first cavity  130  and may include a separation distance W 3  spaced apart from the reflection molding portion  290 a by a fixed distance. For example, the separation distance W 3  may 3.3% or less of the bottom surface width of the first cavity  130 . Specifically, the separation distance W 3  may be between 30 μm and 100 μm. In a case where the separation distance W 3  is less than 30 μm, optical efficiency may be reduced by being in contact with the first light emitting device  151  and the second light emitting device  153  and the inside surfaces of the first cavity  130 . Further, in a case where the separation distance W 3  is less than 30 μm, a yield can be reduced due to defect. 
     In a case where the separation distance W 3  is greater than 100 μm, since an area of the upper portion surface  170 a of the first lead frame  170  which is exposed from the first cavity  130  increases, the light extraction efficiency may be reduced due to loss of the light absorbed into the upper portion surface  170 a of the first lead frame  170 . 
     The first light emitting device  151  and the second emitting device  153  may different from the distance which is spaced apart from the first inside surface  131  of the first cavity  130 . In the second embodiment, the wire bonding portion  160 a may be disposed between the first light emitting device  151  and the inside surface of the first cavity  130 . In the second embodiment, the separation distance between the first light emitting device  151  and the first inside surface  131  of the first cavity  130  may be greater than the separation distance between the second light emitting device  153  and the first inside surface  131  of the first cavity  130 . 
     The reflection molding portion  290 a may include insulating material or reflective material. The reflection molding portion  290 a may be made of at least one of polyphthalamide (PPA), poly-cyclo-hecylene dimethyl terephthalate (PCT), white silicone, and white epoxy molding compound (white EMC). However, it is not limited to this. 
     The reflection molding portion  290 a may form on a portion of the bottom surface of the first cavity  130  and the second cavity  140  as a method for dispensing using a nozzle. However, it is not limited to this. 
     With reference to  FIG. 13  to  FIG. 17 , a boundary portion  131 a may be disposed between the second cavity  140  and the first lead frame  170  exposed from the first cavity  130 . The boundary portion  131 a may be disposed in the first inside surface  131  of the second cavity  130 . 
     An inclined angle θ 1  of the first inside surface  131  may be changed according to a position of the boundary portion  131 a which is disposed on the spacer  126 . For example, in a case where the boundary portion  131 a covers the entire of the spacer  126 , the first inside surface  131  may include a first inclined angle θ 1 - 1  between the upper surface of the spacer  126  and the first inside surface  131 . Further, in a case where the boundary portion  131 a covers a portion of the spacer  126 , the first inside surface  131  may include a second inclined angle θ 1 - 2  between the upper surface of the spacer  126  and the first inside surface  131 . The first inside surface  131  according to the embodiment may include the first inclined angle θ 1 - 1  which is less than the second inclined angle θ 1 - 2 . Specifically, in a case where the light emitting device package according to the embodiment has the first inclined angle θ 1 - 1  which is less than the second inclined angle θ 1 - 2 , the area of the boundary portion  131 a on the spacer  126  is changed and the area of the upper portion surface  170 a of the first lead frame  170  which is exposed from the first cavity  130  may be reduced. Accordingly, in a case where the light emitting device package according to the embodiment has a first inclined angle θ 1 - 1  which is less than the second inclined angle θ 1 - 2 , the light extraction efficiency is capable of being improved by the first lead frame  170  and the second lead frame  180  hidden by the body  120  having high reflectivity increasing. 
     With reference to  FIG. 18 , a reflection molding portion  290 b according to the third embodiment may be disposed on the second cavity  140 . A portion of the reflection molding portion  290 b may disposed on the upper portion surface  170 a of the first lead frame  170  exposed from the first cavity  130 . The reflection molding portion  290 b may extend to the bottom surface of the first cavity  130  which is closest to the second cavity  140 . Accordingly, the reflection molding portions  290 b according to the third embodiment may improve the light extraction efficiency by reducing the area of the upper portion surface  170 a of the first lead frame which is exposed to the first cavity  130 . 
     In the first light emitting device  251  and the second emitting device  253  according to the third embodiment, the distances which are spaced apart from the first inside surface  131  of the first cavity  130  may be equal to each other. The first light emitting device  251  and the second emitting device  253  may include the separation distance which is spaced apart by a fixed distance between the second to the fourth inside surfaces  132 ,  133 , and  134  of the first cavity  130 . For example, the separation distance may 3.3% or less of the bottom surface width of the first cavity  130 . The separation distance may adapt technical characteristics of  FIG. 13  to  FIG. 15 . 
     The reflection molding portion  290 b may cover a portion of the first inside surface  131  on which the second cavity  140  is disposed. The reflection molding portion  290 b may extend to the wire bonding portion  160 a of the protection device  160  disposed on the bottom surface of the first cavity  130  along the first inside surface  131  of the periphery of the second cavity  140 . For example, the reflection molding portion  290 b may be disposed along the first inside surface  131  between the second cavity  140  and the first cavity  130 . 
     The end  291  of the reflection molding portion  290 b may be disposed between the wire bonding portion  160 a and the first light emitting device  251  and the second emitting device  253 . The end  291  of the reflection molding portion  290 a, and the first boundary  291 a to the third boundary  291 c may adapt the technical characteristics of  FIG. 13  to  FIG. 15 . Further, the first width W 1  and the second width W 2 , material and the manufacturing method of the reflection molding portion  290 a may adapt the technical characteristics of  FIG. 13  to  FIG. 15 . 
     The first boundary  291 a may be disposed between the first inside surface  131  and the second inside surface  132  of the first cavity  130 . 
     The second cavity  140  may include the first region  140 a on which the protection device  160  is mounted and a second region  140 b for wire bonding of the second light emitting device  153 . The first region  140 a and the second region  140 b may be a cavity structure which is spaced apart from each other by a fixed distance. However, it is not limited to this. 
     With reference to  FIG. 19 , a reflection molding portion  290 c according to the fourth embodiment may be disposed on the second cavity  140 . A portion of the reflection molding portion  290 c may disposed on the upper portion surface  170 a of the first lead frame  170  exposed from the first cavity  130 . The reflection molding portion  290 c may extend to the bottom surface of the first cavity  130  which is closest to the second cavity  140 . Accordingly, the reflection molding portions  290 c according to the fourth embodiment may improve the light extraction efficiency by reducing the area of the upper portion surface  170 a of the first lead frame which is exposed to the first cavity  130 . 
     In the fourth embodiment, a light emitting device  350  may be disposed in the first cavity  130 . The light emitting device  350  may include a separation distance W 3  which is spaced apart by a fixed distance between the first inside surface  131  to the fourth inside surface  134  of the first cavity  130 . For example, the separation distance W 3  may 3.3% or less of the bottom surface width of the first cavity  130 . The separation distance may adapt technical characteristics of  FIG. 13  to  FIG. 18 . 
     The reflection molding portion  290 c may cover a portion of the first inside surface  131  on which the second cavity  140  is disposed. The reflection molding portion  290 c may extend to the wire bonding portion  160 a of the protection device  160  disposed on the bottom surface of the first cavity  130  along the first inside surface  131  of the periphery of the second cavity  140 . For example, the reflection molding portion  290 c may be disposed along the first inside surface  131  between the second cavity  140  and the first cavity  130 . 
     The end  291  of the reflection molding portion  290 c may be disposed between the wire bonding portion  160 a and the light emitting device  253 . The end  291  of the reflection molding portion  290 c, and the first boundary  291 a to the second boundary  291 c may adapt the technical characteristics of  FIG. 13  to  FIG. 18 . Further, the first width W 1  and the second width W 2 , material and the manufacturing method of the reflection molding portion  290 c may adapt the technical characteristics of  FIG. 13  to  FIG. 18 . 
     The first boundary  291 a may be disposed between the first inside surface  131  and the second inside surface  132  of the first cavity  130 . 
     The protection device  160  may be mounted on the second cavity  140  and the second cavity  140  may include the wire bonding portion of the light emitting device  350 . However, it is not limited to this. 
     With reference to  FIG. 20 , a reflection molding portion  290 d according to the fifth embodiment may be disposed on the second cavity  140 . A portion of the reflection molding portion  290 d may disposed on the upper portion surface  170 a of the first lead frame  170  exposed from the first cavity  130 . The reflection molding portion  290 d may extend to the bottom surface of the first cavity  130  which is closest to the second cavity  140 . Accordingly, the reflection molding portions  290 d according to the fourth embodiment may improve the light extraction efficiency by reducing the area of the upper portion surface  170 a of the first lead frame which is exposed to the first cavity  130 . 
     The separation distance between the light emitting device  350  and first cavity  130  and the light emitting device  350  according to the fifth embodiment may adopt technical characteristics of the fourth embodiment in  FIG. 19 . 
     The reflection molding portion  290 d may cover a portion of the first inside surface  131  on which the second cavity  140  is disposed. The reflection molding portion  290 d may extend to the wire bonding portion  160 a of the protection device  160  disposed on the bottom surface of the first cavity  130  along the first inside surface  131  of the periphery of the second cavity  140 . For example, the reflection molding portion  290 d may be disposed along the first inside surface  131  between the second cavity  140  and the first cavity  130 . 
     The end  291  of the reflection molding portion  290 d may be disposed between the wire bonding portion  160 a and the light emitting device  253 . The end  291  of the reflection molding portion  290 d and the first boundary to the second boundary may adapt the technical characteristics of  FIG. 13  to  FIG. 19 . Further, the first width and the second width, material and the manufacturing method of the reflection molding portion  290 d may adapt the technical characteristics of  FIG. 13  to  FIG. 19 . 
     In the fifth embodiment, a portion of the spacer may be exposed from the first inside surface  131  of the first cavity  130 . For example, the spacer  126  may be exposed between the second inside surface  132  of the first cavity  130  and the second cavity  140  to the outside. Further, in the fifth embodiment, a portion of the upper portion surface  180 a of the second lead frame may be exposed from the first inside surface  131  of the cavity  130  to the outside. The wire bonding portion of the light emitting device  350  may be disposed in the upper portion surface  180 a of the exposed second lead frame. 
     With reference to  FIG. 21  and  FIG. 22 , the reflection molding portion  290 e according to the sixth embodiment may be disposed on the protection device  160  and the wire bonding portion  160 a. A portion of the reflection molding portion  290 e may disposed on the upper portion surface  170 a of the first lead frame  170  exposed from the first cavity  130 . The reflection molding portion  290 e may disposed on the upper portion surface  180 a of the second lead frame  180  exposed from the first cavity  130 . The reflection molding portion  290 e may extend from the upper portion surface  180 a of the second lead frame  180  on which the protection device  350  is disposed to the upper portion surface  170 a of the first lead frame  170 . The reflection molding portions  290 e according to the sixth embodiment extend to the upper portion surface  170 a of the first lead frame  170  exposed to the first cavity  130  and thus are capable of improving the light extraction efficiency. 
     The separation distance between the first cavity  130  and the light emitting device  350  according to the sixth embodiment may adapt technical characteristics of the fourth and the fifth embodiments of the  FIG. 19  and  FIG. 20 . 
     The reflection molding portion  290 e may cover the protection device  160  on the upper portion surface  180 a of the second lead frame  180  exposed from the first cavity  130  and may cover the wire bonding portion  160 a disposed on the upper portion surface  170 a of the first lead frame  170 . 
     The end  291  of the reflection molding portion  290 e may be disposed between the wire bonding portion  160 a and the light emitting device  253 . The end  291  of the reflection molding portion  290 e and the first boundary to the third boundary may adapt the technical characteristics of  FIG. 13  to  FIG. 20 . Further, the first width and the second width, material and the manufacturing method of the reflection molding portion  290 e may adapt the technical characteristics of  FIG. 13  to  FIG. 20 . 
     In the sixth embodiment, the spacer  126  and the upper portion surface  180 a of the second lead frame  180  may be exposed to the bottom of the first cavity  130 . For example, the spacer  126  may be exposed between the reflection molding portion  290 e and the second inside surface  132  of the first cavity  130  to the outside. Further, in the sixth embodiment, the wire bonding portion of the light emitting device  350  may be disposed in the upper portion surface  180 a of the exposed second lead frame  180 . 
     The reflection molding portion  290 e may be disposed on the spacer  126 . The reflection molding portion  290 e may be overlapped with a portion of the spacer  126  in the vertical direction. The reflection molding portion  290 e may be directly in contact with the upper portion of the spacer  126 . 
       FIG. 23  is a cross-sectional view illustrating a light emitting chip which is included in a light emitting device package according to the embodiment. 
     As illustrated in  FIG. 13 , the light emitting chip includes a substrate  511 , a buffer layer  512 , a light emitting structure  510 , a first electrode  516  and a second electrode  517 . The substrate  511  may be made of light transparent material or non-light transparent material and may include a conductive substrate or an insulating substrate. 
     The buffer layer  512  reduces a lattice constant difference between material of the substrate  512  and material of the light emitting structure  510  and may be made of a nitride semiconductor. A nitride semiconductor layer which is not doped with dopant is further formed between the buffer layer  512  and the light emitting structure  510  and thus can improve crystal quality. 
     The light emitting structure  510  include a first conductive semiconductor layer  513 , an active layer  514 , and a second conductive semiconductor layer  515 . 
     For example, It may be implemented with compound semiconductors, such as group II-group IV and group III-group V. The first conductive semiconductor layer  513  may be formed in a single layer or multi-layers. The first conductive semiconductor layer  513  may be doped with a first conductive dopant. For example, in a case where the first conductive semiconductor layer  513  is an n-type semiconductor layer, it may include a n-type dopant. For example, the n-type dopant may include Si, Ge, Sn, Se, and Te. However, it is not limited to this. The first conductive semiconductor layer  513  may include a composition formula of InxAlyGal-x-yN (0≤x≤1, 0≤y≤1, 0≤x+y≤1). The first conductive semiconductor layer  513  may include a stacked structure of layers including at least one of compound semiconductors such as GaN, InN, AlN, InGaN, AlGaN, InAlGaN, AlInN, AlGaAs, GaP, GaAs, GaAsP, and AlGaInP, for example. 
     A first cladding layer may be formed between the first conductive semiconductor layer  513  and the active layer  514 . The cladding layer may be formed in a GaN-based semiconductor and a band gap of the cladding layer may be equal to or greater than the band gap of the active layer  514 . This first cladding layer may be a first conductivity type and may include ability to constrain a carrier. 
     The active layer  514  is disposed on the first conductive semiconductor layer  513  and may selectively include a single quantum well, multiple quantum wells (MQW), quantum wire structure, or a quantum dot structure. The active layer  514  may include a cycle of well layer and barrier layer. The well layer may include a composition formula of InxAlyGal-x-yN (0≤x≤1, 0≤y≤1, 0≤x+y≤1) and the barrier layer may include a composition formula of InxAlyGal-x-yN (0≤x≤1, 0≤y≤1, 0≤x+y≤1). The cycle of the well layer and the barrier layer may be formed in at least one cycle using stacked structures of InGaN/GaN, GaN/AlGaN, InGaN/AlGaN, InGaN/InGaN, and InAlGaN/InAlGaN, for example. The barrier layer may be formed in semiconductor material having a band gap which is higher than a band gap of the well layer. 
     The second conductive semiconductor layer  515  is formed on the active layer  514 . The second conductive semiconductor layer  515  may be implemented with compound semiconductors, such as compound semiconductors of group II-group IV and group III-group V. The second conductive semiconductor layer  515  may be formed in a single layer or multi-layers. In a case where the second conductive semiconductor layer  515  is a p-type semiconductor layer, the second conductive dopant may include Mg, Zn, Ca, Sr, Ba, or the like, as a p-type dopant. The second conductive semiconductor layer  515  may be doped with a second conductive dopant. The second conductive semiconductor layer  515  may include a composition formula of InxAlyGal-x-yN (0≤x≤1, 0≤y≤1, 0≤x+y≤1). The second conductive semiconductor layer  515  may be made of any one of compound semiconductors such as GaN, InN, AlN, InGaN, AlGaN, InAlGaN, AlInN, AlGaAs, GaP, GaAs, GaAsP, and AlGaInP, for example. 
     The second conductive semiconductor layer  515  may include a super-lattice structure and the super-lattice structure may include an InGaN/GaN super-lattice structure or an AlGaN/GaN super-lattice structure. The super-lattice structure of the second conductive semiconductor layer  515  may protect the active layer  514  by diffusing a current which is abnormally included in voltage. 
     Even if the first conductive semiconductor layer  513  is described as a n-type semiconductor layer and the second conductive semiconductor layer  515  is described as a p-type semiconductor layer, the first conductive semiconductor layer  513  is described as a p-type semiconductor layer and the second conductive semiconductor layer  515  is described as a n-type semiconductor layer. However, it is not limited to this. A semiconductor having a polarity opposite to the polarity of the second conductivity type, for example n-type semiconductor layer (not illustrated) may be formed on the second conductive semiconductor layer  515 . According to this, the light emitting structure  510  may be implemented as any one structure among an n-p junction structure, a p-n junction structure, a n-p-n junction structure, and a p-n-p junction structure. 
     A first electrode  516  is disposed on the first conductive semiconductor layer  513  and a second electrode  517  having a current diffusion layer is included on the second conductive semiconductor layer  513 . 
       FIG. 24  is a cross-sectional view illustrating another example of a light emitting chip which is included in a light emitting device package according to an embodiment. As illustrated in  FIG. 24 , a light emitting chip of another example refers to  FIG. 6 . Therefore, description of the same configuration will be omitted. As an light emitting chip according to another example, a contacting layer  521  may be disposed under the light emitting structure  510 , a reflective layer  524  may be disposed under the contacting layer  521 , a supporting member  525  may be disposed under the reflective layer  524 , and a protection layer  523  may be disposed around the light emitting structure  510  and the reflective layer  524 . 
     The light emitting chip may be disposed the contacting layer  521  and the protection layer  523 , the reflective layer  524  and the supporting member  525  under the second conductive semiconductor layer  515 . 
     The contacting layer  521  may have an ohmic contact with a lower surface of the light emitting structure  510 , for example the second conductive semiconductor layer  515 . The contacting layer  521  may be selected among metal nitride, an insulating material, and a conductive material. For example, the contacting layer  521  may be formed among materials consisting of indium tin oxide (ITO), indium zinc oxide (IZO), indium zinc tin oxide (IZTO), indium aluminum zinc oxide (IAZO), indium gallium zinc oxide (IGZO), indium gallium tin oxide (IGTO), aluminum zinc oxide (AZO), antimony tin oxide (ATO), gallium zinc oxide (GZO), Ag, Ni, Al, Rh, Pd, Ir, Ru, Mg, Zn, Pt, Au, Hf and a selective combination thereof. Further, the contacting layer may be formed in the multilayer using metal material and light transmissive and conductive material such as IZO, IZTO, IAZO, IGZO, IGTO, AZO, ATO and may be stacked with IZO/Ni, AZO/Ag, IZO/Ag/Ni, AZO/Ag/Ni, for example. A current blocking layer which blocks current to correspond to the electrode  615  may further formed in the contacting layer  521 . 
     The protection layer  523  may be selected among metal oxide and an insulating material. For example, the protecting layer  523  may be selectively formed among materials consisting of indium tin oxide (ITO), indium zinc oxide (IZO), indium zinc tin oxide (IZTO), indium aluminum zinc oxide (IAZO), indium gallium zinc oxide (IGZO), indium gallium tin oxide (IGTO), aluminum zinc oxide (AZO), antimony tin oxide (ATO), gallium zinc oxide (GZO), SiO2, SiOx, SiOxNy, Si3N4, Al2O3, and TiO2. The protection layer  523  may be formed by using a sputtering method, the vapor deposition method, or the like. Metal such as the reflection layer  524  can prevent layers of the light emitting structure  510  to be short-circuited. 
     The reflective layer  524  may include metal. For example, the reflective layer  524  may be formed in Ag, Ni, Al, Rh, Pd, Ir, Ru, Mg, Zn, Pt, Au, Hf and material consisting of a selective combination thereof. The reflective layer  524  is capable of improving light reflection efficiency by the width thereof being formed to be greater than the width of the light emitting structure  510 . A metal layer for bonding, a metal layer for thermal diffusion may be further disposed between the reflective layer  524  and the supporting member  525 . However it is not limited to this. 
     The supporting member  525  may be implemented with metal such as Copper (Cu), gold (Au), nickel (Ni), molybdenum (Mo), copper-tungsten (Cu—W) or a carrier wafer (for example: Si, Ge, GaAs, ZnO, SiC) as a base substrate. A bonding layer may be further formed between the supporting member  525  and the reflective layer  524 . 
     &lt;Lighting System&gt; 
       FIG. 25  is a perspective view illustrating a display device which includes a light emitting device package according to an embodiment. 
     As illustrated in  FIG. 25 , a display apparatus  1000  according to the embodiment may include a light guide plate  1041 , a light source module  1031  which provide light to the light guide plate  1041 , a reflection member  1022  under the light guide plate  1041 , an optical sheet  1051  on the light guide plate  1041 , a display panel  1061  on the optical sheet  1051 , and a bottom cover  1011  which accommodates the light guide plate  1041 , the light source module  1031 , and the reflection member  1022 . However, it is not limited to this. 
     The bottom cover  1011 , the reflection member  1022 , the light guide plate  1041 , and the optical sheet  1051  may be defined as a light unit  1050 . 
     The light guide plate  1041  serves to diffuse the light and thus to be a surface light source. The light guide plate  1041  may be made of transparent material and may include one of acrylic resin based material such as polymethyl metaacrylate (PMMA) and resin such as polyethylene terephthlate (PET), poly carbonate (PC), cycloolefin copolymer (COC) and polyethylene naphthalate (PEN). 
     The light source module  1031  provides light on at least one side surface of the light guide plate  1041  and ultimately acts as a light source of the display device. 
     At least one light source module  1031  may be provided and may directly or indirectly provide light from a side surface of the light guide plate  1041 . The optical module  1031  include a substrate  1033  and the light emitting device package  110  according to the embodiment and a plurality of light emitting device packages  110  may be disposed on the substrate  1033  in a state of being spaced apart from each other by a fixed distance. 
     The substrate  1033  may be a printed circuit board (PCB) including a circuit pattern (not illustrated). However, the substrate  1033  may includes a general PCB as well as a metal core PCB (MCPCB), a flexible PCB (FPCB), or the like. However, it is not limited to this. The light emitting device package  110  may be directly disposed on a side surface of the bottom cover  1011  or a heat dissipation plate. 
     The reflection member  1022  may be disposed under the light guide plate  1041 . The reflection member  1022  is capable of improving the brightness of the light unit  1050  by reflecting light which is incident on a lower surface of the light guide plate  1041 . The reflection member  1022  may be made of PET, PC, PVC resin, or the like, for example. However, it is not limited to this. 
     The bottom cover  1011  may accommodates the light guide plate  1041 , the light source module  1031 , the reflection member  1022 , or the like. The bottom cover  1011  may include an accommodating portion  1012  having a box shape of which an upper surface is opened. However, it is not limited to this. The bottom cover  1011  may couple with a top cover. However, it is not limited to this. 
     The bottom cover  1011  may be made of metal material or resin material and may be manufactured using a process such as press molding, extrusion molding. In addition, the bottom cover  1011  may include metallic or non-metallic materials having good thermal conductivity. However, it is not limited to this. 
     The display panel  1061 , for example, as a LCD panel, may include a first substrate and a second substrate which are transparent and face each other, and a liquid crystal layer which is inserted between the first substrate and the second substrate. A polarizing plate may be disposed on at least one surface of the display panel  1061 . The display panel  1061  displays information by light passed through the optical sheet  1051 . The display device  1000  can be applied to various types of portable terminals, a monitor of a notebook computer, a monitor of a laptop computer, a television, or the like. 
     The optical sheet  1051  may be disposed between the display panel  1061  and the light guide plate  1041 . The optical sheet  1051  may include at least one transparent sheet. The optical sheet  1051  may include at least one among a diffusion sheet, at least one of prism sheet, and the protection sheet. The diffusion sheet may include a function which diffuses light which is incident. The diffusion sheet may include a function which condenses light which is incident into a display area. The protection sheet may include a function which protects the prism sheet. 
     &lt;Lighting System&gt; 
       FIG. 26  is a cross-sectional view illustrating another example of a display device which includes a light emitting device package according to an embodiment. 
     As illustrated in  FIG. 26 , a display device  1100  of another example may include a bottom cover  1152 , a substrate  1120  on which the light emitting device package  110  is mounted, an optical member  1154 , and a display panel  1155 . 
     The substrate  1120  and the light emitting device package  110  may be defined as a light source module  1160 . The bottom cover  1152 , at least one light source module  1160 , and an optical member  1154  may be defined as a light unit  1150 . The bottom cover  1152  may include an accommodating portion  1153 . However, it is not limited to this. The light source module  1160  may include a substrate  1120  and a plurality of light emitting device package  110  which is disposed on the substrate  1120 . 
     Here, the optical member  1154  may include at least one of lens, a diffusion plate, a diffusion sheet, a prism sheet, and a protective sheet. The diffusion plate may be made of PC material or poly methyl methacrylate (PMMA) material and the diffusion plate may be removed. The diffusion sheet may diffuse incident light, the prism sheet may condense the incident light into a display area, and the protection sheet may protect the prism sheet. 
     The optical member  1154  is disposed on the light source module  1060 , is to be surface light source using light emitted from the light source module  1060  and performs diffusion, condensation, or the like of the light emitted from the light source module  1060 . 
     The light emitting device package  110  according to the embodiment may be applied to the display device as well as lighting units, indication units, lamps, street lights, vehicle lighting devices, vehicle display devices, smart watches, or the like. However, it is not limited to this. 
     Features, structures, effects or the like which are described in the above embodiments are included in at least one embodiment and it is not necessarily limited to only one embodiment. Further, features, structures, effects, or the like described in each embodiment can be carried out in combination or modification for other embodiments by those having ordinary skill in the art belonging to the embodiments. Therefore, contents related to such combinations and modifications should be construed as being included in the scope of the embodiments. 
     It is described with reference to the embodiments above, but it is illustrative only and is not intended to limit the embodiments. Those of ordinary skill in the art belonging to the embodiments will recognize that various modifications and applications which are not illustrated in the above embodiments are possible without departing from the essential characteristics of this embodiment. For example, each component which is specifically described in the embodiment can be modified and performed. Differences relating to these modifications and applications should be construed as being included in the scope of the embodiments set out in the appended claims.