Patent Publication Number: US-2023135095-A1

Title: Lighting module and lighting device

Description:
TECHNICAL FIELD 
     An embodiment of the invention relates a lighting module having a plurality of light sources and a lighting device having the same. An embodiment of the invention relates to a lighting module having a different size of at least one of a plurality of LEDs, and a lighting device having the same. 
     BACKGROUND ART 
     Lighting applications include vehicle lights as well as backlights for displays and signage. A light emitting device, for example, a light emitting diode (LED), has advantages such as low power consumption, semi-permanent life, fast response speed, safety, and environmental friendliness compared to conventional light sources such as fluorescent lamps and incandescent lamps. These light emitting diodes are applied to various display devices, various lighting devices such as indoor or outdoor lights. Recently, as a vehicle light source, a lamp employing a light emitting diode has been proposed. Compared with incandescent lamps, light emitting diodes are advantageous in that power consumption is small. However, since a directivity angle of light emitted from the light emitting diode is small, when the light emitting diode is used as a vehicle lamp, there is a demand for increasing the light emitting area of the lamp using the light emitting diode. Since the light emitting diode is small, it may increase the design freedom of the lamp, and it is economical due to its semi-permanent life. 
     DISCLOSURE 
     Technical Problem 
     Embodiment of the invention may provide a lighting module and a lighting device in which a light source is sealed in a resin layer and at least one of the light emitting devices of the light source has a size different from that of another light emitting device. An embodiment of the invention may provide a lighting module and a lighting device in which a light source is sealed in a resin layer and at least one of the light emitting devices of the light source has a size smaller than the size of another light emitting device. An embodiment of the invention may provide a lighting module and a lighting device in which a light source is sealed in a resin layer and optical patterns is respectively disposed on the light emitting devices of the light source, wherein at least one of the optical patterns has an area different from that of another optical pattern. An embodiment of the invention may provide a lighting module and a lighting device in which at least one of the optical patterns is respectively disposed on the light emitting devices has an area smaller than that of the other optical patterns. An embodiment of the invention may provide a lighting module and a lighting device in which at least two light emitting devices has different lengths in one direction and different numbers of LED chips. 
     Technical Solution 
     A lighting device according to an embodiment of the invention includes: a substrate; a reflective layer disposed on the substrate; a light source passing through the reflective layer and disposed on the substrate; a resin layer disposed on the reflective layer; and an optical pattern disposed on the resin layer, wherein the light source includes a first light emitting device and a second light emitting device spaced apart from the first light emitting device, wherein the optical pattern includes a first optical pattern disposed on an upper portion of the first light emitting device and a second optical pattern disposed on an upper portion of the second light emitting device, and the first optical pattern and the second optical pattern may have different areas. 
     According to an embodiment of the invention, the first optical pattern and the second optical pattern may have a plurality of unit pattern layers having different areas and overlapping each other. An area of the unit pattern layer disposed on the uppermost side of the first optical pattern may be larger than an area of the unit pattern layer disposed on the uppermost side of the second optical pattern. An area of the unit pattern layer disposed on the uppermost side of the plurality of unit pattern layers of the first optical pattern may be larger than an area of the unit pattern layer of the lowermost side thereof. According to an embodiment of the invention, the reflective layer may include a first hole in which the first light emitting device is disposed and a second hole in which the second light emitting device is disposed, and the first hole may be larger than the second hole. A length of the long axis direction of the first hole may be greater than a length of the long axis direction of the second hole. According to an embodiment of the invention, the maximum length of the first optical pattern may be in the range of 2.4 times to 2.6 times based on the length of the long axis of the first light emitting device, and the length of the long axis of the second optical pattern may be in the range of 3.6 times to 3.8 times based on the length of the long axis of the second light emitting device. A lighting device according to an embodiment of the invention includes: a substrate; a reflective layer disposed on the substrate; a light source passing through the reflective layer and disposed on the substrate; a resin layer disposed on the reflective layer; and an optical pattern disposed on the resin layer, wherein the light source includes a first light emitting device and a second light emitting device spaced apart from the first light emitting device, wherein the first light emitting device and the second light emitting device may include a different number of LED chips, and the length of the long axis direction of the first light emitting device may be different from a length of the long axis direction of the second light emitting device. 
     According to an embodiment of the invention, the first light emitting device includes a first lead frame, and a second lead frame and a third lead frame disposed on both sides of the first lead frame and having the same area from each other. The second lighting device may include a fourth lead frame and a fifth lead frame having a different area from the fourth lead frame. According to an embodiment of the invention, the first light emitting device includes a body to which the first to third lead frames are coupled to a bottom of a cavity; and a plurality of LED chips on the first lead frame disposed in the first cavity, wherein the cavity is disposed on a front surface of the body, the body including a first side portion facing the substrate, each of the first to third lead frames may include a bonding portion bent to the first side portion of the body. According to an embodiment of the invention, the second light emitting device may include a second body in which fourth and fifth lead frames are disposed to a bottom of the second cavity; at least one LED chip disposed on the fourth lead frame disposed on the bottom of the second cavity; a bonding member bonding between the fourth lead frame and the LED chip; and a first wire having both ends connected between the bonding member and the fourth lead frame. According to an embodiment of the invention, a second wire connecting the fifth lead frame and the LED chip of the second light emitting device is included, wherein the second wire may include a sub-wire having multi-stage contacts on the upper surface of the fifth lead frame. 
     A lighting device according to an embodiment of the invention includes: a substrate; a reflective layer disposed on the substrate; a light source passing through the reflective layer and disposed on the substrate; a resin layer disposed on the reflective layer; and an optical pattern disposed on the resin layer, wherein the light source includes M first light emitting devices and N second light emitting devices spaced apart from the M first light emitting devices, wherein M is a natural number greater than N, the length of the long axis of the first light emitting device is greater than the length of the long axis of the second light emitting device, and the maximum width of the resin layer overlapping in the long axis direction of the second light emitting device passing over the center of the second light emitting device may be in the range of 2 to 2.2 times the length of the long axis of the first light emitting device. 
     According to an embodiment of the invention, the resin layer may include: a first region having a minimum first width and in which a plurality of the first light emitting devices are arranged; and a second region having a maximum second width and in which at least one second light emitting device is disposed, wherein the second width is smaller than the first width and greater than a length in a long axis direction of the second light emitting device, wherein the second width is less than 2.2 times the length of the long axis of the second light emitting device, the second region has the second width, and may extend to a length of 5 times or more of a width of the short axis of the second light emitting device from the second light emitting device in the light exit direction of the second light emitting device. According to an embodiment of the invention, the second light emitting device may be disposed at a position closest to the side surface of the resin layer among the first and second light emitting devices. According to an embodiment of the invention, the optical pattern may include: a first optical pattern overlapping a portion of each of the first light emitting devices in a vertical direction; and a second optical pattern overlapping a portion of the second light emitting device in a vertical direction, wherein the second optical pattern may be disposed most adjacent to a side surface of the resin layer among the first and second optical patterns. 
     Advantageous Effects 
     According to an embodiment of the invention, it is possible to illuminate an edge region having a relatively narrow width in a lighting module with a uniform light distribution. According to an embodiment of the invention, by disposing a light emitting device having a relatively small length in an edge region having a relatively narrow width in the lighting module, it is possible to provide uniform surface illumination for regions having different widths. 
     According to an embodiment of the invention, it is possible to provide uniform surface illumination over the entire region of the resin layer by using light emitting devices of light sources having different lengths. According to an embodiment of the invention, by disposing optical patterns of different areas on the light emitting devices of the light source having different sizes, it is possible to suppress hot spots on the entire region of the resin layer. According to an embodiment of the invention, it is possible to improve the reliability of the lighting module and the lighting device having various shapes. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         FIGS.  1  and  2    are examples of a plan view of a lighting device according to an embodiment of the invention. 
         FIG.  3    is a partially enlarged view of the lighting device of  FIG.  1   . 
         FIGS.  4    (A) and (B) are examples of a plan view and a cross-sectional side view of the first optical pattern of  FIG.  3   . 
         FIGS.  5    (A) and (B) are examples of a plan view and a cross-sectional side view of the first optical pattern of the second optical pattern of  FIG.  3   . 
         FIG.  6    is a side cross-sectional view taken along line A 1 -A 2  of the lighting device of  FIG.  3   . 
         FIG.  7    is a partially enlarged view of the lighting module in  FIG.  6   . 
         FIG.  8    is an example of a front view of a first light emitting device of a lighting device according to an embodiment of the invention. 
         FIG.  9    is an example of a cross-sectional view taken along line B 1 -B 2  of the first light emitting device of  FIG.  8   . 
         FIG.  10    is an example of a bottom view of the first light emitting device of  FIG.  8   . 
         FIG.  11    is an example of a front view of a second light emitting device of a lighting device according to an embodiment of the invention. 
         FIG.  12    is an example of a cross-sectional view taken along the line C-C of the second light emitting device of  FIG.  11   . 
         FIG.  13    is an example of a bottom view of the second light emitting device of  FIG.  11   . 
         FIG.  14    is a partially enlarged view of the second light emitting device of  FIG.  11   . 
         FIG.  15    is a view comparing first and second light emitting devices of a substrate according to an embodiment of the invention. 
         FIG.  16    is a view showing an example of a plan view of a vehicle having the lighting device of the invention. 
         FIG.  17    is an example of a tail lamp of a vehicle to which the lighting device of  FIG.  16    is applied. 
     
    
    
     BEST MODE 
     Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings. 
     The technical spirit of the invention is not limited to some embodiments to be described, and may be implemented in various other forms, and one or more of the components may be selectively combined and substituted for use within the scope of the technical spirit of the invention. In addition, the terms (including technical and scientific terms) used in the embodiments of the invention, unless specifically defined and described explicitly, may be interpreted in a meaning that may be generally understood by those having ordinary skill in the art to which the invention pertains, and terms that are commonly used such as terms defined in a dictionary should be able to interpret their meanings in consideration of the contextual meaning of the relevant technology. Further, the terms used in the embodiments of the invention are for explaining the embodiments and are not intended to limit the invention. In this specification, the singular forms also may include plural forms unless otherwise specifically stated in a phrase, and in the case in which at least one (or one or more) of A and (and) B, C is stated, it may include one or more of all combinations that may be combined with A, B, and C. In describing the components of the embodiments of the invention, terms such as first, second, A, B, (a), and (b) may be used. Such terms are only for distinguishing the component from other component, and may not be determined by the term by the nature, sequence or procedure etc. of the corresponding constituent element. And when it is described that a component is “connected”, “coupled” or “joined” to another component, the description may include not only being directly connected, coupled or joined to the other component but also being “connected”, “coupled” or “joined” by another component between the component and the other component. In addition, in the case of being described as being formed or disposed “above (on)” or “below (under)” of each component, the description includes not only when two components are in direct contact with each other, but also when one or more other components are formed or disposed between the two components. In addition, when expressed as “above (on)” or “below (under)”, it may refer to a downward direction as well as an upward direction with respect to one element. The lighting device according to the invention may be applied to various lamp devices that require lighting, such as vehicle lamps, home lighting devices, or industrial lighting devices. For example, when applied to vehicle lamps, it is applicable to headlamps, sidelights, side mirrors, fog lights, tail lamps, brake lights, daytime running lights, vehicle interior lights, door scars, rear combination lamps, backup lamps, etc. The lighting device of the invention may be applied to indoor and outdoor advertising devices, display devices, and various electric vehicle fields, and in addition, it may be applied to all lighting-related fields or advertisement-related fields that are currently developed and commercialized or that may be implemented according to future technological developments. 
       FIGS.  1  and  2    are examples of a plan view of a lighting device according to an embodiment of the invention,  FIG.  3    is a partially enlarged view of the lighting device of  FIG.  1   ,  FIG.  4 (A) (B) is examples of a plan view and a cross-sectional side view of the first optical pattern of  FIG.  3   ,  FIG.  5 (A) (B) is examples of a plan view and a cross-sectional side view of the first optical pattern of the second optical pattern of  FIG.  3   ,  FIG.  6    is a side cross-sectional view taken along line A 1 -A 2  of the lighting device of  FIG.  3   ,  FIG.  7    is a partially enlarged view of the lighting module in  FIG.  6   ,  FIG.  8    is an example of a front view of a first light emitting device of a lighting device according to an embodiment of the invention,  FIG.  9    is an example of a cross-sectional view taken along line B 1 -B 2  of the first light emitting device of  FIG.  8   ,  FIG.  10    is an example of a bottom view of the first light emitting device of  FIG.  8   ,  FIG.  11    is an example of a front view of a second light emitting device of a lighting device according to an embodiment of the invention,  FIG.  12    is an example of a cross-sectional view taken along the line C-C of the second light emitting device of  FIG.  11   ,  FIG.  13    is an example of a bottom view of the second light emitting device of  FIG.  11   ,  FIG.  14    is a partially enlarged view of the second light emitting device of  FIG.  11   , and  FIG.  15    is a view comparing first and second light emitting devices of a substrate according to an embodiment of the invention. 
     Referring to  FIGS.  1  to  7   , a lighting device  400  according to an embodiment of the invention may include a light source having a plurality of light emitting devices  100  and  102 . At least one of the light emitting devices  100  and  102  may have a length different from that of the other light emitting devices. At least one of the light emitting devices  100  and  102  may have a size or volume smaller than that of the other light emitting devices. At least one of the light emitting devices  100  and  102  may have an area of an emission surface that is different from an area of an emission surface of the other light emitting devices. At least one of the light emitting devices  100  and  102  may have an area of an emission surface smaller than an area of an emission surface of the other light emitting device. 
     As shown in  FIG.  1   , in the lighting device  400 , a diffusion layer  430  is disposed on an upper portion, a plurality of first light emitting devices  100  are arranged in a first region R 1 , and at least one second light emitting device  102  may be disposed in a second region R 2  that is a corner region. The first light emitting devices  100  may emit light in the same direction or in at least one different direction. The second light emitting device  102  may be disposed at a position closest to the outer side surface S 1  or at the closest distance among the first and second light emitting devices  100  and  102 . As shown in  FIG.  3   , the minimum distance G 1  between the second light emitting device  102  and the outer side surface S 1  may be in the range of 2 times or less, for example, 0.5 to 1.5 times the length D 11  of the second light emitting device  102 . 
     As shown in  FIGS.  2  and  3   , in the lighting device  400 A, a diffusion layer  430  is disposed on an upper portion or a resin layer  420  (see  FIG.  5   ) is disposed on a lower portion, and a plurality of the first light emitting devices  100  are arranged in a first regions R 1  a width having greater than or equal to a first width W 1 , and a plurality of second light emitting devices  102  may be arranged in the second region R 2  having a thin second width W 2 . The second region R 2  may extend to a width W 3  smaller than the second width W 2  in the emission side direction of the second light emitting device  102 . One or a plurality of coupling grooves  403  may be disposed around the lighting device  400 A, and a through hole  405  larger than an interval between the plurality of first light emitting devices  100  may be disposed in the lighting device  400 A. 
     As shown in  FIGS.  1  and  2   , when viewed from the top view of the lighting devices  400  and  400 A, the first light emitting device  100  is disposed in the first region R 1  having a length of at least the first width W 1  or more; The second light emitting device  102  may be disposed in the second region R 2  having a maximum length of the second width W 2 . The first width W 1  may be the width of the substrate  401  or the resin layer  420  disposed on the substrate  401  in the first region R 1 , and the second width W 2  may be a width of the substrate  401  or the resin layer  420  disposed on the substrate  401  in the second region R 2 . The first width W 1  may be three or more times the length D 1  of the first light emitting device  100  in the first region R 1 . The second width W 2  may be 2.2 times or less, for example, in the range of 2 to 2.2 times the length D 1  of the first light emitting device  101  in the second region R 2 . The second region R 2  has a maximum width W 2  on the resin layer  420  overlapping in the long axis direction of the second light emitting device  102  passing over the center of the second light emitting device  102 , and the maximum width W 2  of the second region R 2  may be 2.2 times or less, for example, in the range of 2 to 2.2 times the length of the long axis of the first light emitting device  100 . The first and second regions R 1  and R 2  may be regions in which the substrate  401  and/or the resin layer  420  has the second width W 2 . The lengths D 1  and D 11  of the first and second light emitting devices  100  and  102  may be lengths in the long axis direction. 
     In the lighting devices  400  and  400 A, even if the width of the edge portion having the second region R 2  is narrow in the lamp structure of various shapes, one or a plurality of the second light emitting devices  102  may be disposed and the distribution of surface light on the entire region of the lighting device  400  and  400 A may be provided uniformly. Here, the length in the direction in which light is emitted from the second light emitting device  102  in the second region R 2  may have a long length that is 5 times or more than a width H 01  (Refer to  FIG.  12   ) of the short axis of the second light emitting device  102 , and at least one second light emitting device  102  may be disposed along the second region R 2 . Here, the first light emitting devices  100  may be arranged on the substrate  401  in at least one row in the second direction Y, or may be arranged in two or more rows, and the first light emitting devices  100  arranged in one or more rows or two or more rows may be disposed in the first direction X of the substrate  401  or may be disposed in different directions. The first light emitting device  100  may be arranged in an m×n matrix, and m, n may be an integer of 2 or more. 
     As shown in  FIGS.  3  and  6   , the lighting device  400  may include a light source having a plurality of light emitting devices  100  and  102  and a resin layer  420  covering the light source. The lighting device  400  may include a substrate  401  supporting the light emitting devices  100  and  102  and the resin layer  420 . The lighting device  400  may include at least one of at least one diffusion layer  430 , optical patterns  425  and  426 , and/or a light-transmitting layer on the resin layer  420 . The lighting device  400  may include a reflective layer  410  disposed between the substrate  401  and the resin layer  420 . The lighting device  400  according to an embodiment of the invention may emit the light emitted from the light emitting devices  100  and  102  as surface light. The lighting device  400  may be defined as a light emitting cell or a light source module. The light source may include a plurality of arranged first light emitting devices  100  and at least one second light emitting device  102 . The light source includes M first light emitting devices  100  and N second light emitting devices  102  spaced apart from the M first light emitting devices  100 , wherein M and N are natural numbers, and it may have a relationship: M&gt;N. The second light emitting device  102  may have a length D 11  smaller than the length D 1  of each of the first light emitting devices  100 . An upper surface area of the second light emitting device  102  may be smaller than an upper surface area of each of the first light emitting devices  100 . The area of the emission surface  8 A of the second light emitting device  102  may be smaller than the area of the emission surface  81  of each of the first light emitting devices  100 . The luminous intensity of the light emitted from the second light emitting device  102  may be lower than the luminous intensity of the light emitted from each of the first light emitting devices  100 . The number of LED chips  3  (see  FIG.  11   ) in the second light emitting device  102  may be different from the number of LED chips  71  and  72  disposed on at least one of the first light emitting devices  100 , and for example, may be smaller than the number of LED chips  71  and  72  of the first light emitting device  100 . 
     Hereinafter, each configuration of the lighting device  400  will be described with reference to  FIGS.  7  and  8   . 
     &lt;Substrate  401 &gt; 
     Referring to  FIGS.  6  and  7   , the substrate  401  may include a printed circuit board (PCB). The substrate  410  may include, for example, at least one of a resin-based printed circuit board (PCB), a PCB having a metal core, a flexible PCB, a ceramic PCB, or an FR-4 substrate. When the substrate  401  is disposed as a metal core PCB having a metal layer disposed on the bottom, heat dissipation efficiency of the light emitting devices  100  and  102  may be improved. The substrate  401  may be electrically connected to the light emitting devices  100  and  102 . The substrate  401  includes a wiring layer (not shown) thereon, and the wiring layer may be electrically connected to the light emitting devices  100  and  102 . When a plurality of the light emitting devices  100  and  102  are arranged on the substrate  401 , the plurality of light emitting devices  100  and  102  may be connected in series, parallel, or series-parallel by the wiring layer. The substrate  401  may function as a base member or a support member disposed under the light emitting devices  100  and  102  and the resin layer  420 . Here, the first and second light emitting devices  100  and  102  may be driven separately from each other. The upper surface of the substrate  401  may have an X-Y plane. The upper surface of the substrate  401  may be flat or have a curved surface. The thickness of the substrate  401  may be a height in a vertical direction or a Z direction. Here, in the X-Y plane, the X direction may be a first direction, and the Y direction may be a second direction. The Z direction may be a direction orthogonal to the first and second directions X and Y. The plurality of first light emitting devices  100  may be arranged at a constant pitch in a direction in which light is emitted on the substrate  401 , but is not limited thereto. The substrate  401  may be provided in a straight or curved bar shape in a long length direction. The substrate  401  may include a light-transmitting material through which light is transmitted through the upper and lower surfaces. The light-transmitting material may include at least one of polyethylene terephthalate (PET), polystyrene (PS), and polyimide (PI). The substrate  401  may include, for example, a reflective layer  410 . The reflective layer  410  may be an insulating layer that protects a circuit pattern having a pad disposed on the substrate  401  or a layer of a reflective material. 
     &lt;Light Emitting Device  100  and  102 &gt; 
     Referring to  FIGS.  1  to  5   , the light emitting devices  100  and  102  are disposed on the substrate  401  and emit light in the first direction X. The light emitting devices  100  and  102  emit light having the highest intensity through the emission surfaces  81  and  8 A. The light emitting devices  100  and  102  may have emission surfaces  81  and  8 A through which light is emitted, and the emission surfaces  81  and  8 A are disposed, for example, in the third direction Z or a vertical direction with respect to the horizontal upper surface of the substrate  401 . The emission surfaces  81  and  8 A may be a vertical plane, or may include a concave surface or a convex surface. As shown in  FIG.  15   , the first light emitting device  100  may be bonded to, for example, first and second pads  453 , 454  disposed on the substrate  401  using a bonding member  250 , and the second light emitting device  102  may be bonded to the third and fourth pads  455  and  456  using a bonding member  250 . The first and second light emitting devices  100  and  102  may be electrically connected to the substrate  401 . The bonding member  250  is a conductive material, and may be a solder material or a metal material. The light emitting devices  100  and  102  may emit at least one of blue, red, green, ultraviolet (UV), and infrared rays, and the light emitting devices  100  and  102  may include an LED chip emitting at least one of white, blue, red, green, and infrared rays. The light emitting devices  100  and  102  may be of a side view type in which a bottom portion is electrically connected to the substrate  401 , but is not limited thereto. As another example, the light emitting devices  100  and  102  may be an LED chip or a top-view package. Some of the light emitted through the emission surfaces  81  and  8 A of the light emitting devices  100  and  102  may travel in a direction parallel to the upper surface of the substrate  401 , reflect by the reflective layer  410  or and travels in a direction of the upper surface of the resin layer  420 . 
     As shown in  FIGS.  8  and  9   , the length D 1  of the first light emitting device  100  in the second direction Y may be greater than the width H 0  in the first direction X. For example, in the first light emitting device  100 , the length D 1  may be at least twice the width H 0 , for example, between 3 times and 4.2 times. Since the first light emitting device  100  has a long length in the second direction Y, the light emission surface of the light emitting device  110  in the first direction X orthogonal to the second direction Y may have a larger area, and may illuminate a larger area. 
     As shown in  FIGS.  11  and  12   , the length D 11  of the second light emitting device  102  in the second direction Y may be greater than the width H 01  in the first direction X. For example, in the second light emitting device  102 , the length D 11  may be less than or equal to twice the width H 01 , for example, in the range of 1.4 to 2 times. The width H 01  of the second light emitting device  102  is provided to be greater than or equal to a certain level, and a long length D 11  in the second direction Y is provided to be smaller than the length D 1  of the first light emitting device  100 , so that a region having a narrow width may be illuminated. 
     As shown in  FIGS.  8  and  11   , the thicknesses T 1  and T 2  of the light emitting devices  100  and  102  may be, for example, 3 mm or less, for example, in the range of 0.8 mm to 2 mm. The thickness T 1  of the first light emitting device  100  may be in the range of 1.3 mm to 1.5 mm, and the thickness T 2  of the second light emitting device  102  may be formed to be equal to or thicker than the thickness T 1  of the first light emitting device  100 , and for example, may be in the range of 1.4 mm to 1.55 mm. The thickness T 1  of the first light emitting device  100  and the thickness T 2  of the second light emitting device  102  are vertical heights, and the difference between the thicknesses T 1  and T 2  may be in the range of 0.5 mm to 0.9 mm. Since the size of the second light emitting device  102  is relatively small, it is possible to provide a thicker body  1  and the body  1  is stably coupled to the lead frames  5  and  6 . The length D 1  in the second direction Y of the first light emitting device  100  may be 3 times or more, for example, in the range of 3 to 5 times the thickness T 1  of the first light emitting device  100 . The length D 11  of the second light emitting device  102  in the second direction Y may be 3 times or less of the thickness T 2  of the second light emitting device  102 , for example, in the range of 2 to 3 times. 
     &lt;Reflective Layer  410 &gt; 
     As shown in  FIGS.  6  and  7   , the reflective layer  410  may be a layer separately disposed on the substrate  401  or a layer protecting the upper portion of the substrate  401 . The reflective layer  410  may be disposed between, for example, the substrate  401  and the resin layer  420 . The reflective layer  410  may be provided in the form of a film having a metal material or a non-metal material. The reflective layer  410  may be adhered to the upper surface of the substrate  401 . The reflective layer  410  may have an area smaller than a upper surface area of the substrate  401 . The reflective layer  410  may be spaced apart from the edge of the substrate  401 , and a resin layer  420  may be attached to the substrate  401  in the spaced apart region. In this case, it is possible to prevent the edge portion of the reflective layer  410  from peeling off. The reflective layer  410  may include holes  417  and  417 A in which lower portions of the light emitting devices  100  and  102  are disposed. In the holes  417  and  417 A of the reflective layer  410 , the upper surface of the substrate  401  is exposed and a portion to which the lower portions of the light emitting devices  100  and  102  are bonded may be disposed. The size of the holes  417  and  417 A may be the same as or larger than the size of the light emitting devices  100  and  102 , but is not limited thereto. The first hole  417  in which the first light emitting device  100  is disposed may be larger than the second hole  417 A in which the second light emitting device  102  is disposed, and for example, an area of the first hole  417  may be 1.5 times or more, for example, in a range of 1.5 times to 2.2 times the area of the second hole  417 A. The length of the first hole  417  in the long axis direction may be 2.4 times or more, for example, in the range of 2.4 times to 2.6 times the length of the long axis direction of the second hole  417 A. Due to the difference in length or area, the first and second light emitting devices  100  and  102  may be easily accommodated in the respective holes  417  and  417 A, and the problem of exposing the bonding member  250  to the outside may be reduced. 
     The reflective layer  410  may be in contact with the upper surface of the substrate  401  or may be adhered between the resin layer  420  and the substrate  401 , but is not limited thereto. Here, the reflective layer  410  may be removed when a highly reflective material is coated on the upper surface of the substrate  401 . The reflective layer  410  may be formed to have a thickness smaller than that of the light emitting devices  100  and  102 . The thickness of the reflective layer  410  may include a range of 0.2 mm±0.02 mm. The lower portions of the light emitting devices  100  and  102  may penetrate through the holes  417  and  417 A of the reflective layer  410  and upper portions of the light emitting devices  100  and  102  may protrude. The emission surfaces  81  and  8 A of the light emitting devices  100  and  102  may be provided in a direction perpendicular to the upper surface of the reflective layer  410 . 
     The reflective layer  410  may include a metallic material or a non-metallic material. The metallic material may include a metal such as aluminum, silver, or gold. The non-metallic material may include a plastic material or a resin material. The resin material may include a reflective material, for example, a metal oxide such as TiO 2 , Al 2 O 3 , SiO 2 , in silicon or epoxy. The reflective layer  410  may be implemented as a single layer or a multilayer, and light reflection efficiency may be improved by such a layer structure. The reflective layer  410  according to an embodiment of the invention reflects the incident light, thereby increasing the amount of light so that the light is emitted with a uniform distribution. As another example of the lighting device, the reflective layer  410  may be removed from the substrate  401 . For example, the resin layer  420  may be disposed on the substrate  401  without the reflective layer  410 , and the resin layer  420  may be in contact with the upper surface of the substrate  401 . 
     &lt;Resin Layer  420 &gt; 
     The resin layer  420  may be disposed on the substrate  401 . The resin layer  420  may face or adhere to the substrate  401 . The resin layer  420  may be disposed on all or a portion of the upper surface of the substrate  401 . A lower surface area of the resin layer  420  may be equal to or smaller than an upper surface area of the substrate  401 . The resin layer  420  may be formed of a transparent material and may guide or diffuse light. The resin layer  420  may be formed of a resin-based material, and may include a resin material such as silicone or epoxy, or a UV-curable resin material. Such a resin material can be used instead of the light guide plate, and it is convenient to adjust the refractive index and adjust the thickness. In addition, the resin layer  420  uses the above-described oligomer as a main material, and mixes IBOA, diluent monomer, and GMA to control hardness, heat resistance, transmittance, and suppress adhesion and oxidation prevention. The resin layer  420  may contain a photo initiator and a light stabilizer to control curing and suppress discoloration. 
     Since the resin layer  420  is provided as a layer for guiding light as a resin, it may be provided with a thinner thickness than that of glass and may be provided as a flexible plate. The resin layer  420  may emit the point light source emitted from the light emitting devices  100  and  102  in the form of a line light source or a surface light. A bead (not shown) may be included in the resin layer  420 , and the bead may diffuse and reflect incident light to increase the amount of light. The beads may be arranged in an amount of 0.01 to 0.3% based on the weight of the resin layer  420 . The bead may be composed of any one selected from silicon, silica, glass bubble, polymethyl methacrylate (PMMA), urethane, Zn, Zr, Al 2 O 3 , and acryl, and the particle diameter of the beads may be in the range of about 1 μm to about 20 μm, but is not limited thereto. Since the resin layer  420  is disposed on the light emitting devices  100  and  102 , it is possible to protect the light emitting devices  100  and  102  and reduce loss of light emitted from the light emitting devices  100  and  102 . The light emitting devices  100  and  102  may be buried under the resin layer  420 . 
     The resin layer  420  may be in contact with the surfaces of the light emitting devices  100  and  102  and may be in contact with the emission surfaces  81  and  8 A of the light emitting devices  100  and  102 . A portion of the resin layer  420  may be disposed in the holes  417  and  417 A of the reflective layer  410 . A portion of the resin layer  420  may be in contact with the upper surface of the substrate  401  through the holes  417  and  417 A of the reflective layer  410 . Accordingly, a portion of the resin layer  420  is in contact with the substrate  401 , thereby fixing the reflective layer  410  between the resin layer  420  and the substrate  401 . 
     Referring to  FIG.  7   , the thickness Z 1  of the resin layer  420  may be 1.8 mm or more, for example, in the range of 1.8 to 2.5 mm. When the thickness Z 1  of the resin layer  420  is thicker than the above range, the luminous intensity may be reduced, and it may be difficult to provide a flexible module due to an increase in the module thickness. When the thickness Z 1  of the resin layer  420  is smaller than the above range, it is difficult to provide surface light having a uniform luminous intensity. A length in the first direction X of the resin layer  420  may be the same as a length in the first direction X of the substrate  401 , and a width in the second direction Y of the resin layer  420  may be equal to the width Y 1  of the substrate  401  in the second direction Y. Accordingly, each side surface of the resin layer  420  may be disposed on the same plane as each side surface of the substrate  401 . The resin layer  420  may be provided in a size to cover the plurality of light emitting devices  100  and  102  or may be connected to each other. The resin layer  420  may be divided into a size to cover each of the light emitting devices  100  and  102 . The upper surface of the resin layer  420  may have a first adhesive force. The upper surface of the resin layer  420  may have a first adhesive force and may be adhered to the light-transmitting layer  415 . 
     &lt;Light-Transmitting Layer  415 &gt; 
     The light-transmitting layer  415  may be an adhesive material such as silicone or epoxy, or may include a diffusion material. The diffusion material may include at least one of polyester (PET), poly methyl methacrylate (PMMA), and polycarbonate (PC). The light-transmitting layer  415  may include an adhesive region that is adhered to the upper surface of the resin layer  420  and a non-adhesive region that is not adhered or spaced apart from the upper surface of the resin layer  420 . The light-transmitting layer  415  is disposed on 60% or more, for example, 80% or more, of the upper surface area of the resin layer  420 , so that the diffusion layer  430  is in close contact with the resin layer  420  or when the lower diffusion layer (not shown) disposed between the light-transmitting layer  415  and the resin layer  420 , the diffusion layer  430  may be in close contact with the lower diffusion layer (not shown). 
     &lt;Optical Patterns  425  and  426 &gt; 
     The optical patterns  425  and  426  may face the upper surface of the resin layer  420 . The optical patterns  425  and  426  may overlap each of the light emitting devices  100  and  102  in a vertical direction or a third direction Z. Each of the plurality of optical patterns  425  and  426  may be vertically overlapped with each of the plurality of light emitting devices  100  and  102 . The optical patterns  425  and  426  may be disposed between the resin layer  420  and the diffusion layer  430 . When the diffusion layer  430  is disposed in plurality, the optical patterns  425  and  426  may be disposed on the lower surface of the plurality of diffusion layers or between the plurality of diffusion layers. The optical patterns  425  and  426  may be disposed in the light-transmitting layer  415 . The optical patterns  425  and  426  may penetrate the light-transmitting layer  415 , and may contact at least one of the resin layer  420  and the diffusion layer  430 . The optical patterns  425  and  426  may include gap portions  427  and  427 A spaced apart from the inner surface of the light-transmitting layer  415  and/or the upper surface of the resin layer  420 . The gap portions  427  and  427 A may provide a refractive index different from that of the optical patterns  425  and  426 , thereby improving light diffusion efficiency. For example, the lower surface S 13  of the optical patterns  425  and  426  may be spaced apart from or in contact with the upper surface of the resin layer  420 . The gap portions  427  and  427 A may be an air region or a vacuum region. 
     As shown in  FIGS.  3 ,  6 , and  7   , a distance between adjacent first optical patterns  425  may be smaller than a distance between adjacent first light emitting devices  100 . A distance between the different first and second optical patterns  425  and  426  may be smaller than a distance between the different first and second light emitting devices  100  and  102 . The optical patterns  425  and  426  may be spaced apart from the outer side surface S 1  (refer to  FIG.  3   ) of the resin layer  420 . The optical patterns  425  and  426  may have the same shape as each other. The optical patterns  425  and  426  may be respectively disposed on the first and second light emitting devices  100  and  102 . The first optical pattern  425  may overlap each of the first light emitting devices  100  in the vertical direction. The second optical pattern  426  may vertically overlap the second light emitting device  102 . The second optical pattern  426  may be disposed at the closest distance or closest to the side surface of the resin layer  420  among the first and second optical patterns  425  and  426 . The optical patterns  425  and  426  may be disposed higher than the upper surface of the resin layer  420 . Each of the optical patterns  425  and  426  may be 50% or more of the upper surface area of each of the light emitting devices  100  and  102  on the light emitting devices  100  and  102 , or may be in the range of 50% to 800%. The optical patterns  425  and  426  may be regions printed with a white material. The optical patterns  425  and  426  may be printed using, for example, a reflective ink including any one of TiO 2 , Al 2 O 3 , CaCO 3 , BaSO 4 , and Silicon. The optical patterns  425  and  426  reflect the light emitted through the emission surfaces  81  and  8 A of the light emitting devices  100  and  102 , thereby reducing the occurrence of hot spots on each of the light emitting devices  100  and  102 . The optical patterns  425  and  426  may be printed with a light blocking pattern using a light blocking ink. The optical patterns  425  and  426  may be formed by printing on the lower surface of the diffusion layer  430 . The optical patterns  425  and  426  are made of a material that does not block 100% of amount of incident light, have transmittance lower than reflectance, and may function as light blocking and diffusion. The optical patterns  425  and  426  may be formed in a single layer or multiple layers, and may have the same pattern shape or different pattern shapes. The optical patterns  425  and  426  may have the same thickness as each other. The optical patterns  425  and  426  may have different thicknesses according to regions. The thickness of the optical patterns  425  and  426  may be the thickest in the center region and thinner in the edge region than the center region. The optical patterns  425  and  426  may have a thickness in proportion to the incident light intensity. 
     The lower surface area of the optical patterns  425  and  426  is arranged in 50% or more of the upper surface area of the light emitting devices  100  and  102 , for example, in the range of 50% to 800% or in the range of 200% to 700% to block the incident light. Accordingly, it is possible to reduce the problem that the light emitting devices  100  and  102  are visible from the outside and to reduce hot spots on the region of the light emitting devices  100  and  102 , thereby providing a uniform light distribution over the entire region. The optical patterns  425  and  426  may be disposed in a hemispherical shape, an elliptical shape, or a circular shape based on the light emitting devices  100  and  102 . 
     As shown in  FIG.  4 (A) , the first optical pattern  425  covers the emission side region of the upper surface of the first light emitting device  100 , and may have a length C 3  longer than the length D 1  of the first light emitting device  100 . The maximum length C 3  of the first optical pattern  425  is the maximum length in a direction perpendicular to the direction in which light is emitted, and may be 8 mm or more, for example, in the range of 8 mm to 20 mm or in the range of 12 mm to 18 mm. The maximum width B 3  of the first optical pattern  425  is the maximum length in the direction in which light is emitted, and may be provided in a range of 6 mm or more, for example, in the range of 6 mm to 15 mm or in the range of 8 mm to 13 mm. The maximum length C 3  of the first optical pattern  425  may be smaller than the maximum width B 3 , for example, the maximum length C 3  may be 1.2 times or more, for example, in the range of 1.2 times to 1.7 times the maximum width B 3 . Accordingly, the first optical pattern  425  disposed on the region from which the light of the first light emitting device  100  is emitted may suppress the hot spot through light blocking or reflection. The area of the first optical pattern  425  may vary according to the distribution of the orientation angle of the first light emitting device  102 . 
     As shown in  FIG.  5 (A) , the second optical pattern  426  covers the emission side region of the upper surface of the second light emitting device  102 , and may have a length C 31  longer than the length D 11  of the second light emitting device  102 . The length C 31  of the second optical pattern  426  is the maximum length in a direction perpendicular to the direction in which the light is emitted, and may be 6 mm or more, for example, in the range of 6 mm to 15 mm or in the range of 6 mm to 12 mm. A width B 31  of the second optical pattern  426  is a maximum length in a direction in which light is emitted, and may be provided in a range of 8 mm or more, for example, in the range of 8 mm to 18 mm or in the range of 8 mm to 15 mm. The length C 31  of the second optical pattern  426  may be smaller than the width B 31 , for example, the length C 31  may be formed in a range of 1.2 times or more, for example, in the range of 1.2 times to 1.7 times the width B 31 . 
     As shown in  FIG.  4 (A) , the maximum length C 3  of the first optical pattern  425  may be 2.6 times or less for example, in the range of 2.4 times to 2.6 times the length D 1  of the first light emitting device  100  in the long axis direction Y. The maximum length C 31  of the second optical pattern  426  may be 3.6 times or more, for example, in the range of 3.6 times to 3.8 times the length D 11  of the second light emitting device  102  in the long axis direction Y. Accordingly, the second optical pattern  426  disposed on the region from which the light of the second light emitting device  102  is emitted may suppress the hot spot through light blocking or reflection. The area of the second optical pattern  426  may vary according to the distribution of the orientation angle of the second light emitting device  102 . The length C 31  of the second optical pattern  426  may be smaller than the length C 3  of the first optical pattern  425 , and may be, for example, in the range of 0.9 times or less, for example, in the range of 0.7 times to 0.9 times the length C 3 . The width B 31  of the second optical pattern  426  may be smaller than the length B 3  of the first optical pattern  425 , and may be, for example, 0.85 times or less, for example, in the range of 0.68 times to 0.82 times the length B 3 . 
     As shown in  FIGS.  4 (A) (B) and  5 (A)(B), the first and second optical patterns  425  and  426  may be stacked as a plurality of unit pattern layers M 1 , M 2 , and M 3  and may include the same stacked structure. A portion of the first optical pattern  425  may be disposed on the first light emitting device  100 , and a portion of the second optical pattern  426  may be disposed on the second light emitting device  102 . The first and second optical patterns  425  and  426  may be stacked in the order of, for example, from the top to the bottom, the first unit pattern layer M 1 , the second unit pattern layer M 2 , and the third unit pattern layer M 3 . The second unit pattern layer M 2  has an area smaller than the area of the first unit pattern layer M 1 , and the third unit pattern layer M 3  or the lowermost pattern layer may be an area smaller than the area of the second unit pattern layer M 2 . The first to third unit pattern layers M 1 , M 2 , and M 3  may be respectively overlapped on the first and second light emitting devices  100  and  102 , and may be disposed to have a gradually smaller number of layers or a gradually thinner thickness as they go toward the emission side or in areas father from the light emitting devices  100  and  102 . The first to third unit pattern layers M 1 , M 2 , and M 3  have different pattern shapes and/or different areas from each other, and may overlap in a vertical direction. A reflective patterns Ma of the first unit pattern layer M 1  have a size smaller than the size of a reflective patterns Mb of the second unit pattern layer M 2 , and may be arranged at a pitch smaller than the pitch of the reflection pattern Mb of the second unit pattern layer M 2 . The reflective patterns Mb of the second unit pattern layer M 2  have a size smaller than the size of the reflective patterns Mc of the third unit pattern layer M 3 , and may be arranged at a pitch smaller than the pitch of the reflection pattern Mc of the third unit pattern layer M 3 . Here, the area of the first unit pattern layer M 1  disposed on the uppermost side of the first optical pattern  425  may be greater than an area of the first unit pattern layer M 1  disposed on the uppermost side of the second optical pattern  426 . An adhesive material M 0  such as silicone or epoxy may be filled in the reflective patterns Ma, Mb, Mc of the first to third unit pattern layers M 1 , M 2 , M 3  of the first and second optical patterns  425  and  426 . Since the first and second optical patterns  425  and  426  are stacked on the light emitting devices  100  and  102  as unit pattern layers M 1 , M 2 , and M 3  having multi-layered reflective patterns Ma, Mb, and Mc, there is an effect of blocking light incident to the first and second optical patterns  425  and  426 . In addition, since, the first and second optical patterns  425  and  426  are provided to have a thinner thickness as the regions adjacent to the light emitting devices  100  and  102  are the thickest and the regions farther from the light emitting devices  101  and  102  are provided, it is possible to improve the difference in luminous intensity caused by the distance difference to a uniform luminous intensity. 
     As shown in  FIG.  7   , the thickness Z 3  of the optical patterns  425  and  426  may be 0.1 times or less, for example, 0.05 times to 0.1 times the thickness Z 1  of the resin layer  420 . The thickness Z 3  of the optical patterns  425  and  426  may be 100 μm or more, for example, in the range of 100 to 200 μm. When the thickness Z 3  of the optical patterns  425  and  426  is smaller than the above range, there is a limit to reducing the hot spots, and when the thickness Z 3  is larger than the above range, the optical uniformity may be deteriorated. The distance Z 4  between the upper surfaces of the light emitting devices  100  and  102  and the lower surfaces of the optical patterns  425  and  426  may be 0.4 mm or more, for example, in the range of 0.4 mm to 0.6 mm. The distance Z 0  between the upper surfaces of the light emitting devices  100  and  102  and the upper surface of the reflective layer  410  may be 0.8 mm or more, for example, in the range of 0.8 mm to 1.4 mm. Regions of the optical patterns  425  and  426  may not vertically overlap with regions of the light-transmitting layer  415 . 
     The optical patterns  425  and  426  may be provided on each of the light emitting devices  100  and  102  with a size or area sufficient to prevent hot spots caused by light emitted in the emission direction of the light emitting devices  100  and  102 . In addition, since the light emitting devices  100  and  102  emit light in the side direction, that is, in the first direction X, the optical patterns  425  and  426  cover a region capable of increasing light blocking efficiency due to the distribution of the light directivity angle of the light emitting devices  100  and  102  and the reflection characteristics of light. 
     Here, the distance between the first light emitting devices  100  or the distance between the first and second light emitting devices  100  and  102  may be 25 mm or more, for example, in the range of 25 mm to 30 mm, and may vary depending on the characteristics of the light emitting devices  100  and  102 . 
     As another example, the optical patterns  425  and  426  may be an air region of a recess formed by an etching process of the upper surface of the resin layer  420 , or may include a light blocking layer in which the light blocking material is disposed. Like the region of the optical pattern, the etched region may cover the emission surfaces of the light emitting devices  100  and  102  and may have a range of 50% to 800% of the upper surface area of the light emitting devices  100  and  102 . 
     &lt;Diffusion Layer  430 &gt; 
     The diffusion layer  430  may be disposed on the resin layer  420 . A lower surface of the diffusion layer  430  may include a first region S 11  in which the light-transmitting layer  415  is disposed and a second region S 12  in which the optical patterns  425  and  426  are disposed. The diffusion layer  430  may have the optical patterns  425  and  426  printed thereon, and may be fixed on the resin layer  420  through the light-transmitting layer  415 . 
     Here, when a lower diffusion layer (not shown) is disposed between the light transmitting layer  415  and the resin layer  420 , the lower diffusion layer may be adhered to the resin layer  420 , for example, the upper surface of the resin layer  420  may be adhered to the lower diffusion layer by a first adhesive force having fine cilia. In this case, the diffusion layer  430  and/or the lower diffusion layer may be attached to the resin layer  420  by applying a predetermined pressure or pressure/heat. 
     The diffusion layer  430  may include at least one of a polyester (PET) film, a poly methyl methacrylate (PMMA) material, or polycarbonate (PC). The diffusion layer  430  may be provided as a film made of a resin material such as silicone or epoxy. The diffusion layer  430  may include a single layer or multiple layers. 
     The thickness Z 2  of the diffusion layer  430  is 25 μm or more, and may be, for example, in the range of 25 to 250 μm or in the range of 100 μm to 250 μm. The diffusion layer  430  may have the above thickness range and may provide incident light as uniform surface light. The diffusion layer  430  and/or the lower diffusion layer may include at least one or two or more of a diffusion agent such as beads, a phosphor, and ink particles. The phosphor may include, for example, at least one of a red phosphor, an amber phosphor, a yellow phosphor, a green phosphor, and a white phosphor. The ink particles may include at least one of metal ink, UV ink, and curing ink. The size of the ink particles may be smaller than the size of the phosphor. The surface color of the ink particles may be any one of green, red, yellow, and blue. The ink types may be selectively applied among PVC (Poly vinyl chloride) ink, PC (Polycarbonate) ink, ABS (acrylonitrile butadiene styrene copolymer) ink, UV resin ink, epoxy ink, silicone ink, PP (polypropylene) ink, water-based ink, plastic ink, PMMA (poly methyl methacrylate) ink and PS (Polystyrene) ink. The ink particles may include at least one of metal ink, UV ink, and curing ink. 
     In the embodiment of the invention, light diffused by the resin layer  420  may be transmitted through the light-transmitting layer  415  and may be emitted as surface light through the diffusion layer  430 . In this case, the optical patterns  425  and  426  may prevent hot spots caused by incident light. In another example of the invention, a layer of a reflective material or an upper substrate may be disposed on the resin layer  420 . The layer of the reflective material or the upper substrate may face the upper surface of the resin layer  420 , the light emitting devices  100  and  102  are arranged in at least one row or column, and each emission surface  81  and  8 A of the light emitting devices  100  and  102  may be disposed at the same distance as one side of the resin layer  420 , and may emit light through one side of the resin layer  420 . 
     Hereinafter, detailed structures of the first and second light emitting devices  100  and  102  will be described with reference to  FIGS.  8  to  14   . Referring to  FIGS.  8  to  10   , the first light emitting device  100  includes a body  10  having a cavity  15 A, a plurality of lead frames  20 ,  30  and  40  in the cavity  15 A, and the plurality of and a plurality of LED chips  71  and  72  disposed on at least one of the lead frames  20 ,  30 , and  40 . The first light emitting device  100  may be implemented as a side view type package, and may be applied to a mobile phone, a portable computer, various lighting fields, a vehicle lamp, or a pointing device. The length D 2  in the first direction of the body  10  may be 4 mm or more, for example, in the range of 4 mm to 7 mm or in the range of 4.5 mm to 6.5 mm. Since the body  10  provides a long length D 2  in the first direction, an emission-side area or a light-emitting area of the cavity  15 A may be increased. The thickness T 1  of the first light emitting device  100  may be 1.5 mm or less, for example, in the range of 0.6 mm to 1.5 mm. The first light emitting device  100  may provide a relatively thin thickness T 1 , thereby reducing the thickness of a lighting module or lamp having the first light emitting device  100 . 
     The body  10  may be coupled to the lead frames  20 ,  30 , and  40 . The body  10  may be formed of an insulating material. The body  10  may be formed of a resin-based insulating material, for example, polyphthalamide (PPA), silicone-based, epoxy-based, or thermosetting resin including a plastic material, or a high heat resistance and high light resistance material. have. The body  10  may include a reflective material, for example, a resin material to which a metal oxide is added, and the metal oxide may include at least one of TiO 2 , SiO 2 , and Al 2 O 3 . To explain the side surfaces of the body  10 , the body  10  may include the first side portion  11  and the second side portion  12  disposed on opposite sides in the thickness direction, and the third and fourth side portions  13  and  14  disposed on the opposite sides in the longitudinal direction. The first side portion  11  may be a bottom or a bottom surface of the body  10 , and the second side portion  12  may be an upper surface of the body  10 . The front portion  15  of the body  10  may be a surface on which the cavity  15 A is disposed, and may be a surface on which light is emitted. The rear side opposite to the front portion  15  may be the rear side surfaces of the first side portion  11  and the second side portion  12 . The body  10  may include a first body  10 A in which the cavity  15 A is disposed and a second body  10 B on the rear side of the first body  10 A. The first body  10 A may be disposed on the front portion  15  rather than the lead frames  20 ,  30 , and  40  and disposed around the cavity  15 A. The second body  10 B may be a part that supports the lead frames  20 ,  30 , and  40  and supports the package. 
     The cavity  15 A includes first to fourth inner side surfaces  11 A,  12 A,  13 A, and  14 A opposite to the first to fourth side surfaces  11 ,  12 ,  13 , and  14 , respectively, and the first to fourth inner side surfaces  11 A,  12 A,  13 A, and  14 A may be disposed to be inclined with respect to the bottom of the cavity  15 A. As shown in  FIG.  9   , the depth H 11  of the cavity  15 A is a distance from the front portion  15  of the body  10  to the bottom of the cavity  15 A, and may be in the range of, for example, 0.3 mm±0.05 mm. When the depth H 11  of the cavity  15 A is less than the above range, it is difficult to control the beam angle, and when the depth H 11  exceeds the range, there is a problem in that the beam angle is narrowed. 
     The plurality of lead frames  20 ,  30 , and  40  may be disposed on the bottom of the cavity  15 A, and a part may be bent to extend to the first side portion  11  of the body  10 . The plurality of lead frames  20 ,  30 , and  40  may include the first lead frame  20  and second and third lead frames  30  and  40  spaced apart from the first lead frame  20 . The first lead frame  20  may be disposed between the second and third lead frames  30  and  40 . 
     The first lead frame  20  may include a first frame portion  21  disposed in the center of the bottom of the cavity  15 A and a first bonding portion  22  extending from the first frame portion  21  to the first side portion  11 . The second lead frame  30  may include a second frame portion  31  disposed on one side of the bottom of the cavity  15 A and a second bonding portion  32  extending from the second frame portion  31  in the direction of the first side portion  11 . The third lead frame  40  may include a third frame portion  41  disposed on the other side of the bottom of the cavity  15 A and a second bonding portion  32  extending from the third frame portion  41  in the direction of the first side portion  11 . 
     The plurality of LED chips  71  and  72  are disposed on the first frame portion  21  of the first lead frame  20  and may be connected to the second and third frame portions  31  and  41  by the wires  75  and  76 , respectively. As shown in  FIG.  8   , the first LED chip  71  may be connected to the first frame portion  21  by a bonding member  78 , and may be connected to the second frame unit  31  by the wire  75 . The second LED chip  72  may be connected to the first frame portion  21  and the first frame portion  21  by a bonding member  79 , and may be connected to the third frame portion  41  by the wire  76 . The first LED chip  71  and the second LED chip  72  may be vertical chips. The LED chips  71  and  72  may be selected from, for example, a red LED chip, a blue LED chip, a green LED chip, and a yellow green LED chip. The LED chips  71  and  72  may emit, for example, a red peak wavelength. The LED chips  71  and  72  may include at least one of a group II-VI compound and a group III-V compound. The LED chips  71  and  72  may be formed of, for example, a compound selected from the group consisting of GaN, AlGaN, InGaN, AlInGaN, GaP, AlN, GaAs, AlGaAs, InP, and mixtures thereof. As another example, the first LED chip  71  and the second LED chip  72  may be arranged as flip chips on the first to third frame portions  21 ,  31 , and  41 . At the bottom of the cavity  15 A, separation portions  18  and  19  may be disposed between the first frame portion  21  and the second frame portion  31  and between the first frame portion  21  and the third frame portion  41 , respectively. The separation portions  18  and  19  may be arranged in parallel or obliquely to each other. 
     As shown in  FIGS.  8  and  10   , the first bonding portion  22  may be disposed on the first side portion  11  of the body  10 , that is, it may be disposed on the bottom surface of the second body  10 B. In the first bonding part  22 , the first frame portion  21  may protrude toward the first side portion  11  of the body  10  and be bent toward the rear portion. The first lead frame  20  may include a plurality of connection portions  25 ,  26 , and  27 , and a plurality of coupling holes H 1  and H 2  disposed between the plurality of connection portions  25 ,  26  and  27 . The protrusion portions P 1  and P 2  of the body may be exposed through the coupling holes H 1  and H 2 . The second bonding portion  32  of the second lead frame  30  is disposed on the first side portion  11  of the body  10  and may be bent toward the rear portion. The third bonding portion  42  is disposed on the first side portion  11  of the body  10  and may be bent toward the rear portion. The second bonding portion  32  includes a first extension portion  33  to increase the heat dissipation area, and the first extension portion  33  may be bent toward the third side portion  13  of the body  10 . The third bonding portion  42  may include a second extension portion  43  to increase the heat dissipation area, and the second extension portion  43  may be bent toward the fourth side portion  14  of the body  10 . 
     Here, the areas of the second lead frame  30  and the third lead frame  40  may be equal to each other. Alternatively, the areas of the second and third bonding portions  32  and  42  may be equal to each other. 
     As shown in  FIG.  2   , in the thickness of the body  10 , the thickness of the region adjacent to the third and fourth side portions  13  and  14  may be thinner than the thickness of the center region of the body  10 . This means that the first side portion  11  of the body  10  may include a region  16  that protrudes with respect to the recessed regions  11 B and  11 C adjacent to the third and fourth side portions  13  and  14 , and the second and third bonding portions  32  and  42  of the second and third lead frames  30  and  40  may be disposed in the recessed region  11 B and  11 C. A length of the protruding region  16  in a first direction may be smaller than a length of the first frame  21 . In addition, in the first frame  21  of the first lead frame  20 , a distance C 4  between the LED chips  71  and  72  and the first inner side surface  11 A is narrower than a distance C 3  between the LED chips  71  and  72  and the second inner side surface  12 A. Accordingly, the LED chips  71  and  72  may more effectively transfer heat through the first bonding portion  22  extending in the direction of the first inner side surface  11 A. The LED chips  71  and  72  may be disposed closer to the first side portion  11  than the second side portion  12 . The length Y 1  of the LED chips  71  and  72  in the third direction Z may be arranged in a range of 40% or more, for example, in the range of 40% to 60% of the width C 1  of the bottom of the cavity  15 A. Since the LED chips  71  and  72  are disposed in a large area having a long length in the first and second directions, heat dissipation efficiency may be improved and light efficiency may be increased. The width C 1  of the first frame  21  exposed to the bottom of the cavity  15 A in the third direction may be greater than the width C 2  of the second frame  31 . The difference C 5  between the width C 1  of the first frame  21  and the width C 2  of the second frame  31  may be at most 0.1 mm or more, for example, in the range of 0.1 to 0.25 mm. This is to provide a narrowing region when extending from the region where the first frame  21  is disposed to the region where the second frame  31  and the third frame  41  are disposed on the first inner side surface  11 A. The narrowing region may correspond to one corner of the LED chips  71  and  72 . Accordingly, it is possible to reduce loss of light emitted from each corner of the LED chips  71  and  72  in the outer region of the first inner side surface  11 A adjacent to the third and fourth inner side surfaces  13 A and  14 A. The third and third side portions  13  and  14  of the body  10  may have concave portions  13 B and  14 B recessed inward, and the concave portions  13 B and  14 B are formed during the injection process of the body  10  and may be inserted with fingers supporting the body  10 . A molding member  80  is disposed in the cavity  15 A of the body  10 , and the molding member  80  includes a light-transmitting resin such as silicone or epoxy, and may be formed in a single layer or in multiple layers. When the LED chips  71  and  72  are red LED chips, impurities such as phosphors may not be included in the molding member  80 . As another example, a phosphor for changing the wavelength of the emitted light may be included on the molding member  80  or disposed on the LED chips  71  and  72 , and the phosphor excites some of the light emitted from the LED chips  71  and  72  to emit light of a different wavelength. The phosphor may be selectively formed from quantum dots, YAG, TAG, silicate, nitride, and oxy-nitride-based materials. The phosphor may include at least one of a red phosphor, a yellow phosphor, and a green phosphor, but is not limited thereto. The surface of the molding member  80  may be formed in a flat shape, a concave shape, a convex shape, or the like, but is not limited thereto. As another example, a light-transmitting film having a phosphor may be disposed on the cavity  15 A, but the present disclosure is not limited thereto. A gate groove  16 B may be formed at the rear side of the body  10 . A lens may be further formed on the upper portion of the body  10 , and the lens may include a structure of a concave and/or convex lens, and may adjust a light distribution of the light emitted by the first light emitting device  100 . A semiconductor device such as a light receiving device or a protection device may be mounted on the body  10  or any one of the lead frames, and the protection device may be implemented as a thyristor, a Zener diode, or a TVS (Transient voltage suppression), and the Zener diode protects the LED chips  71  and  72  from electrostatic discharge (ESD). 
     Referring to  FIGS.  11  to  14   , the second light emitting device  102  includes a body  1  having a cavity  1 A, lead frames  5  and  6  disposed at the bottom of the cavity  1 A of the body  1 , and a third LED chip  3  disposed on a fourth frame portion  5 A of the fourth lead frame  5 . 
     The third LED chip  3  may be electrically connected to the fourth and fifth lead frames  5  and  6 . The third LED chip  3  may be bonded to the fourth frame  5 A of the fourth lead frame  5  with a bonding member  3 D, and may be connected to the fifth frame portion  6 A of the fifth lead frame  6  by the fourth wire  3 B. Areas of the fourth and fifth lead frames  5  and  6  may be different from each other. For example, the area of the fourth lead frame  5  may be larger than the area of the fifth lead frame  6 , thereby preventing a decrease in the heat dissipation efficiency of the third LED chip  3  in a small package. The fifth lead frame  5  may include a fifth bonding portion  5 B and a fifth extension portion  5 C extending to one side of the first side portion S 21  of the body  1 . The sixth lead frame  6  may include a sixth bonding portion  6 B and a sixth extension portion  6 C extending to the other side of the first side portion S 21  of the body  1 . 
     Here, the bottom area of the fifth bonding portion  5 B may be larger than the bottom area of the sixth bonding portion  6 B. A bottom shape of the fifth bonding portion  5 B may be different from a bottom shape of the sixth bonding portion  6 B. The length K 1  of the first portion  5 B  1  of the fifth bonding portion  5 B may be greater than the length K 2  of the first portion  6 B 1  of the sixth bonding portion  6 B, for example, the length K 1  may be at least 1.5 times the length K 2 . The length K 3  of the second portion  5 B 2  and the outer bent portion thereof of the fifth bonding portion  5 B may be the same as the length K 4  of the second portion  6 B 2  of the sixth bonding portion  6 B and the outer bent portion thereof. Accordingly, the area of the lower surface of the fifth bonding portion  5 B of the fifth lead frame  5  on which the third LED chip  3  is disposed is further increased, thereby improving the heat dissipation area and the bonding area. The width K 5  of the fifth and sixth extension portions  5 C and  6 C may be 0.8 times or less, for example, in the range of 0.4 times to 0.8 times the lengths K 3  and K 4 . 
     As shown in  FIG.  14   , the third LED chip  3  may be connected to the bonding member  3 D bonded to the third LED chip  3  by a third wire  3 A for double connection. One end of the third wire  3 A may be bonded to the bonding member  3 D, and the other end may be bonded to the fourth frame portion  5 A. Accordingly, when the bonding member  3 D is lifted from the fourth frame portion  5 A, the fourth frame portion  5 A may be connected to the third LED chip  3  through the third wire  3 A. Alternatively, when the third wire  3 A is boiled, the fourth frame portion  5 A may be connected to the third LED chip  3  through the bonding member  3 D. Here, a portion  3 D 1  of the bonding member  3 D may protrude in the direction of the other end of the third wire  3 A, thereby providing a wide bonding area with one end of the third wire  3 A. The fourth wire  3 B has a multi-stage contact with the fifth frame portion  6 A, and may further include, for example, a sub-wire  3 C in which the contacts are jumped to be spaced apart or extended in a different direction. 
     Referring to  FIGS.  9  and  11   , the bottom width T 3  of the cavity  15 A of the first light emitting device  100  may be the same as the bottom width T 4  of the cavity  1 A of the second light emitting device  102 . The height H 11  of the cavities  15 A and  1 A of the first light emitting device  100  and the second light emitting device  102  may be equal to each other. In the bottom lengths D 3  and D 31  of the cavities  15 A and  1 A of the first light emitting device  100  and the second light emitting device  102 , the bottom length D 31  may be 0.7 times or less of the bottom length D 3 , for example, in the range of 0.4 times to 0.7 times. The first to third LED chips  71 ,  72 , and  3  emit light of the same color wavelength and may have the same size. The first light emitting device  100  and the second light emitting device  102  may have the same widths H 0  and H 01  in the second direction. Here, the body  10  of the first light emitting device  100  may be defined as a first body, and the body  1  of the second light emitting device  102  may be defined as a second body. Also, the cavity  15 A of the first light emitting device  100  may be defined as a first cavity, and the cavity  1 A of the second light emitting device  102  may be defined as a second cavity. Here, the length D 11  of the second light emitting device  102  is arranged in a range of 2.5 times or less, for example, 1.5 times to 2.5 times of the thickness T 2 , so that the decrease in the thickness T 2  of the body  1  is minimized and only the length D 11  of the body  1  is reduced, it may be applied to the second region R 2  ( FIG.  1   ) having a thin width. 
     As shown in  15 , in the first light emitting device  100 , each of the first to third lead frames  20 ,  30 , and  40  may be bonded to a plurality of pads  452 ,  453 , 454  of the substrate  401  and a bonding member  250 . In the second light emitting device  102 , each of the fourth and fifth lead frames  5  and  6  may be bonded to the plurality of pads  455  and  456  of the substrate  401  by a bonding member  250 . The first and second light emitting devices  100  and  102  are disposed on the substrate  401 , and the first and second light emitting devices  100  and  102  may have different numbers of LED chips  71 ,  72  and  3 . The first and second light emitting devices  100  and  102  may have different lengths. For example, the length of the second light emitting device  102  may be shorter than that of the first light emitting device  100 . 
       FIG.  16    is a plan view of a vehicle to which a vehicle lamp to which a lighting device is applied according to an embodiment is applied, and  FIG.  17    is a view showing an example of a tail lamp of the vehicle of  FIG.  16   . 
     Referring to  FIGS.  16  and  17   , the front lamp  850  in the moving object or vehicle  900  may include one or more lighting modules, and control the driving timing of these lighting modules individually to function as a typical headlamp as well as, when the driver opens the vehicle door, additional functions such as a welcome light or a celebration effect can be provided. The lamp may be applied to a daytime running lamp, a high beam, a low beam, a fog lamp or a turn signal lamp. In the vehicle  900 , the tail lamp  800  may be arranged with a plurality of lamp units  810 ,  812 ,  814 , and  816  supported by the housing  801 . For example, the lamp units  810 ,  812 ,  814 , and  816  may include a first lamp unit  810  disposed outside, a second lamp unit  814  disposed around the inner circumference of the first lamp unit  810 , and third and fourth lamp units  814  and  816  respectively disposed on the inside the second lamp unit  814 . The first to fourth lamp units  810 ,  812 ,  814 , and  816  may selectively apply the lighting device disclosed in the embodiment, and a red lens cover or a white lens cover for the lighting characteristics of the lamp units  810 ,  812 ,  814 , and  816  on the outside of the lighting device may be placed. The lighting device disclosed in the embodiment applied to the lamp units  810 ,  812 ,  814 , and  816  may emit surface light in a uniform distribution. The first and second lamp units  810  and  812  may be provided in at least one of a curved shape, a straight shape, an angled shape, an inclined shape, and a flat shape, or a mixed structure thereof. One or a plurality of the first and second lamp units  810  and  812  may be disposed in each tail lamp. The first lamp unit  810  may be provided as a tail lamp, the second lamp unit  812  may be provided as a brake lamp, and the third lamp unit  814  may be provided as a reverse lamp, and the fourth lamp unit  816  may be provided as a turn signal lamp. The structure and position of these lighting lamps can be changed. 
     Features, structures, effects, etc. described in the above embodiments are included in at least one embodiment of the invention, and are not necessarily limited to only one embodiment. Furthermore, features, structures, effects, etc. illustrated in each embodiment can be combined or modified for other embodiments by those of ordinary skill in the art to which the embodiments belong. Accordingly, the contents related to such combinations and modifications should be interpreted as being included in the scope of the invention. In addition, although the embodiment has been described above, it is merely an example and does not limit the invention, and those of ordinary skill in the art to which the invention pertains are exemplified above in a range that does not depart from the essential characteristics of the present embodiment. It can be seen that various modifications and applications that have not been made are possible. For example, each component specifically shown in the embodiment can be implemented by modification. And differences related to such modifications and applications should be construed as being included in the scope of the invention defined in the appended claims.