Patent Publication Number: US-2021193635-A1

Title: Lighting module and lighting assembly including same

Description:
TECHNICAL FIELD 
     An embodiment of the invention relates to a lighting module and a lighting assembly having a light emitting device. An embodiment of the invention relates to a lighting module and a lighting assembly providing a surface light source. An embodiment of the invention relates to a light unit or vehicle lamp having a lighting module or lighting assembly. 
     BACKGROUND ART 
     Typical lighting applications include vehicle lights as well as backlights for displays and signs. Light emitting device, such as light emitting diode (LED), have 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 an emission 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 
     An embodiment of the invention may provide a lighting module in which a resin layer is disposed on a plurality of light emitting devices and emits surface light. An embodiment of the invention may provide a lighting module in which a plurality of resin layers is disposed on light emitting devices having a plurality of light exit surfaces. An embodiment of the invention may provide a lighting module in which a wavelength conversion means is added to at least one of a plurality of resin layers on a substrate and a light emitting device. An embodiment of the invention may provide a lighting module having ink particles on at least one of a plurality of resin layers disposed on a substrate and a light emitting device. An embodiment of the invention may provide a lighting module having a wavelength conversion means in a resin layer spaced apart from a substrate and a light emitting device. An embodiment of the invention may provide a lighting module having ink particles in a resin layer spaced apart from a substrate and a light emitting device. An embodiment of the invention may provide a lighting module in which a phosphor and ink particles are added to at least one of a plurality of resin layers disposed on a substrate. An embodiment of the invention may provide a lighting module in which ink particles are added to an uppermost layer of a plurality of resin layers disposed on a substrate and a light emitting device. An embodiment of the invention provides a flexible lighting module having a plurality of light emitting devices and a plurality of resin layers. An embodiment of the invention provides a lighting assembly capable of coupling a cover through an outer portion other than a light emitting region. An embodiment of the invention provides a lighting assembly including a first cover having an opening portion in which a resin layer protrudes, and a second cover under the substrate and the first cover. An embodiment of the invention provides a lighting assembly having a coupling structure for coupling between the first and second covers. An embodiment of the invention provides a lighting module having improved light extraction efficiency and light distribution characteristics, and a lighting assembly having the same. 
     Technical Solution 
     A lighting assembly according to an embodiment of the invention comprises a lighting module including a substrate, a plurality of light emitting devices on the substrate, a first resin layer covering the plurality of light emitting devices, and at least one second resin layer on the first resin layer; and a first cover disposed on an outer periphery of the substrate along an outer periphery of the substrate of the lighting module, wherein the second resin layer is disposed on an upper surface and a side surface of the first resin layer, and the second resin layer includes at least one of a phosphor and ink particles, and the first cover includes an opening portion from which the second resin layer protrudes, a substrate cover portion disposed on an upper surface of the substrate around the opening portion, and a side cover portion extending lower than a side surface of the substrate, and wherein an upper surface of the substrate cover portion may be disposed lower than an upper surface of the first resin layer. 
     According to an embodiment of the invention, a second cover includes a substrate support portion under the substrate of the lighting module and a stepped coupling portion around an outer periphery of the substrate support portion, and a side cover portion of the second cover may be coupled to a coupling portion of the second cover. The first and second covers may include a cable lead portion protruding from a region between the first and second covers and from which a power cable connected to the substrate is drawn out. The second cover includes a stepped groove in which a terminal on a lower surface of the substrate is exposed, and the stepped groove may be inclined toward one side of the lighting module. A distance between the side surface of the substrate and the side surface of the second resin layer may be at least 0.1 times the thickness of the lighting module. The upper surface of the substrate and the upper surface of the second resin layer may include a convex curved surface. The first cover may include a locking protrusion protruding toward the substrate. A plurality of opening portions may be disposed in the first cover, and each of a plurality of lighting modules may protrude from each of the opening portions. 
     A lighting assembly according to an embodiment of the invention comprises a lighting module including a substrate, a plurality of light emitting devices on the substrate, a first resin layer covering the plurality of light emitting devices, and at least one second resin layer on the first resin layer; and a cover including a first cover disposed on an outer periphery of the substrate along an outer periphery of the substrate of the lighting module and a second cover supporting a lower portion of the lighting module, wherein the second resin layer is disposed on a surface of the first resin layer and includes at least one of a wavelength converting means and ink particles therein, and the first cover includes an opening portion in which the first and second resin layers protrude, a substrate cover portion disposed on an upper surface of the substrate around the opening portion, and a side cover portion extending from the substrate cover portion to a side surface of the substrate, wherein the cover includes a first and a first and second coupling member concave toward the substrate from both sides adjacent to one end of the lighting module. 
     According to an embodiment of the invention, a side surface of the second resin layer may include a convex curved surface. An edge of the substrate may extend outwardly than the lower periphery of the second resin layer. A thickness of the lighting module may be 5.5 mm or less. Each of the plurality of light emitting devices may have a flip chip type and may be disposed on the substrate. The second resin layer includes a phosphor and ink particles in a resin material, a content of the phosphor in the second resin layer is 23 wt % or less, and a content of the ink particles may range from 3 wt % to 13 wt %. 
     Advantageous Effects 
     According to an embodiment of the invention, since the resin layer includes at least one of a phosphor and ink particle therein, hot spots may be reduced and light may be uniformly distributed. The lighting module may be installed without using complex fixtures. The lighting module may support and fix portions other than the light emitting region. By attaching the cover to the lighting module, assembly of the lighting module or user convenience may be improved. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         FIG. 1  is a perspective view showing a lighting module according to a first embodiment. 
         FIG. 2  is a cross-sectional view taken along line A-A of the lighting module of  FIG. 1 . 
         FIG. 3  is a diagram illustrating a curved portion of the second resin layer of  FIG. 2 . 
         FIG. 4  is a perspective view illustrating a curved portion of a first resin layer in the lighting module of  FIG. 1 . 
         FIG. 5  is a plan view illustrating a relationship according to a distance between a light emitting device and a first resin layer in  FIG. 4 . 
         FIG. 6  is a cross-sectional view taken along line B-B of  FIG. 4 . 
         FIG. 7  is a diagram illustrating another example of the lighting module of  FIG. 4 . 
         FIG. 8  is a perspective view showing a lighting assembly having a lighting module according to a second embodiment. 
         FIG. 9  is a cross-sectional view taken along line C-C of the lighting assembly of  FIG. 8 . 
         FIG. 10  is a perspective view showing a lighting assembly having a lighting module according to a third embodiment. 
         FIG. 11  is a rear view of the lighting assembly of  FIG. 10 . 
         FIG. 12  is an exemplary view before combining the lighting assembly of  FIG. 10  and a main frame. 
         FIG. 13  is a perspective view illustrating an example of a combination of the lighting assembly of  FIG. 12  and a main frame. 
         FIG. 14  is a side cross-sectional view showing an electrical contact structure of the lighting assembly in the coupling structure of  FIG. 13 . 
         FIG. 15  is a partially enlarged view of a coupling structure of  FIG. 14 . 
         FIG. 16  is a plan view of a lighting assembly according to a fourth embodiment. 
         FIG. 17  is an example of a side cross-sectional view of the lighting assembly of  FIG. 16 . 
         FIG. 18  is a perspective view before the combination of the lighting assembly and the main frame according to the fifth embodiment. 
         FIG. 19  is a side view of a combination of the lighting assembly of  FIG. 18  and a main frame. 
         FIG. 20  is a cross-sectional view taken along line D-D of  FIG. 19 . 
     
    
    
     BEST MODE 
     Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings. However, 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 a variety of 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. 
       FIG. 1  is a perspective view showing a lighting module according to a first embodiment,  FIG. 2  is a cross-sectional view taken along line A-A of the lighting module of  FIG. 1 , and  FIG. 3  is a view for explaining a curved portion of the second resin layer of  FIG. 2 . 
     Referring to  FIGS. 1 to 3 , the lighting module  100  may have a polyhedral shape, for example, a hexahedral shape. The lighting module  100  may be formed in a structure capable of multi-sided light emission. For example, light may be emitted from the upper surface and a plurality of side surfaces of the lighting module  100 . Although the lighting module  100  is shown to emit light to five-sided surfaces, it may be a six-sided light emitting module in which light is emitted through a lower surface. The lighting module  100  may include a substrate  110 , a plurality of light emitting devices  120  disposed on the substrate  110 , a first resin layer  130  disposed on the light emitting device  120 , and one or a plurality of second resin layers  140  disposed on the first resin layer  130 . The lighting module  100  may be applied to various lamp devices that require lighting, such as vehicle lamps, home lighting devices, and industrial lighting devices. For example, in the case of lighting modules applied to vehicle lamps, it is applicable to head lamps, vehicle width lamps, side mirror lamps, fog lamps, tail lamps, turn signal lamps, back up lamps, and stop lamps, daytime running right, vehicle interior lighting, door scarf, rear combination lamp, backup lamp, etc. 
     The substrate  110  may include an insulating or conductive material. The substrate  110  may be formed of a rigid or flexible material. The substrate  110  may be formed of a transparent or opaque material. The substrate  110  may include, for example, at least one of a resin-based printed circuit board (PCB), a metal core PCB, a flexible PCB, a ceramic PCB, or an FR-4 substrate. A thickness of the substrate  110  may be 0.5 mm or less, for example, in a range of 0.3 mm to 0.5 mm. Since the thickness of the substrate  110  is provided thin, the thickness of the lighting module may not be increased. Since the thickness of the substrate  110  is 0.5 mm or less, it is possible to support a flexible module. The thickness of the substrate  110  may be 0.1 times or less, or 0.1 to 0.06 times a distance from the lower surface of the substrate  110  to an upper surface of the uppermost second resin layer  140 . 
     A reflective layer (not shown) may be disposed on the substrate  110 . The reflective layer may be disposed between the substrate  110  and the first resin layer  130 . The reflective layer serves to guide light generated from the light emitting device  120  upward. The reflective layer may include a white material. The reflective layer may include a resin material. The reflective layer may include a material of PMMA, silicon, or epoxy, and may include, for example, at least one of TiO 2 , SiO 2 , and Al 2 O 3  therein. Here, a distance from the lower surface of the substrate  110  to the upper surface of the uppermost second resin layer  140  may be a module thickness. The thickness of the lighting module  100  may be 5.5 mm or less from the bottom of the substrate  110 , in a range of 4.5 mm to 5.5 mm, or 4.5 mm to 5 mm. The thickness of the lighting module  100  may be a linear distance between the lower surface of the substrate  110  and the upper surface of the second resin layer  140 . The thickness of the lighting module  100  may be 220% or less of the thickness of the first resin layer  130 , for example, in the range of 180% to 220%. Since the lighting module  100  has a thickness of 5.5 mm or less, it may be provided as a flexible and slim surface light source module. In addition, the light emitted from the lighting module  100  having the above-described thickness may provide a surface light source with a uniform light distribution. That is, the hot spot of the surface light source may be reduced and light distribution may be improved. 
     The light emitting device  120  may be disposed on the substrate  110 . N number of light emitting devices  120  may be arranged in a first direction of the substrate  110 , and M number of light emitting devices  120  may be arranged in a second direction orthogonal to the first direction. The N and M may be 1 or more, or any one of N or M may be 1 or more and the other may be 2 or more. The light emitting devices  120  may be disposed at the same intervals in the first and second directions, or at least one may be disposed at different intervals. For example, the spacing distance between the light emitting devices  120  may be equally arranged to effectively realize surface light. The light emitting device  120  may be provided as an LED chip, and may emit light of blue, green, red, white, infrared or ultraviolet light. The light emitting device  120  may emit blue light in the range of 420 nm to 470 nm, for example. The light emitting device  120  may be provided as a compound semiconductor. The light emitting device  120  may be provided as, for example, a group II-VI or a group III-V compound semiconductor. For example, the light emitting device  120  may be provided by including at least two or more elements selected from aluminum (Al), gallium (Ga), indium (In), phosphorus (P), arsenic (As), and nitrogen (N). 
     The light emitting device  120  may include a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer. The first and second conductivity type semiconductor layers may be implemented with at least one of a group III-V or a group II-VI compound semiconductor. The first and second conductivity type semiconductor layers may be formed of, for example, a semiconductor material having a composition formula of In x Al y Ga 1-x-y N (0≤x≤1, 0≤y≤1, 0≤x+y≤1). For example, the first and second conductivity type semiconductor layers may include at least one selected from the group including GaN, AlN, AlGaN, InGaN, InN, InAlGaN, AlInN, AlGaAs, GaP, GaAs, GaAsP, and AlGaInP, etc. The first conductivity type semiconductor layer may be an n-type semiconductor layer doped with an n-type dopant such as Si, Ge, Sn, Se, and Te. The second conductivity type semiconductor layer may be a p-type semiconductor layer doped with a p-type dopant such as Mg, Zn, Ca, Sr, and Ba. The active layer may be implemented as a compound semiconductor. The active layer may be implemented with at least one of a group III-V or a group II-VI compound semiconductor. When the active layer is implemented in a multi-well structure, the active layer may include a plurality of well layers and a plurality of barrier layers alternately disposed, and may be disposed of a semiconductor material of In x Al y Ga 1-x-y N (0≤x≤1, 0≤y≤1, 0≤x+y≤1). For example, the active layer may include at least one selected from the group including InGaN/GaN, GaN/AlGaN, AlGaN/AlGaN, InGaN/AlGaN, InGaN/InGaN, AlGaAs/GaAs, InGaAs/GaAs, InGaP/GaP, AlInGaP/InGaP, and InP/GaAs. The light emitting device  120  may emit light through an upper surface and at least one side surface, and, for example, may emit light through an upper surface and four side surfaces. The light emitting device  120  may include a substrate made of a light-transmitting material, and the substrate made of a light-transmitting material may be disposed on the uppermost semiconductor layer. The light emitting device  120  may be a flip chip type and may be disposed on the substrate  110 . 
     The first resin layer  130  may be disposed on the substrate  110  and the light emitting device  120 . The first resin layer  130  may be disposed on the upper and side surfaces of the plurality of light emitting devices  120 . The first resin layer  130  may include an upper surface and a plurality of side surfaces. An upper surface of the first resin layer  130  may face the upper surfaces of the plurality of light emitting devices  120 , and a portion of the side surfaces may face side surfaces of the plurality of light emitting devices  120 . The side surface of the first resin layer  130  may be perpendicular to the upper surface of the substrate  110  or may include a curved surface. When the side surface of the first resin layer  130  faces the light emitting device  120 , light emitted through the side surface of the first resin layer  130  may not contribute to light distribution and may be loss. In order to reduce such loss of light, the side surface of the first resin layer  130  may include a curved surface, for example, a convex curved surface. When the side surface of the first resin layer  130  is formed in a curved surface, incident light may be refracted toward the upper surface thereof. In the first resin layer  130 , a boundary portion between an upper surface and a side surface may be a curved portion. The curved portion may be continuously connected to the upper surface and the side surface of the first resin layer  130 . The curved portion may be an edge portion of an upper surface of the first resin layer  130  or an edge portion of side surfaces. 
     The first resin layer  130  may be a transparent resin material, for example, a resin material such as UV (Ultra violet) resin, silicone, or epoxy. The UV resin, for example, may use as a main material a resin (oligomer type) having urethane acrylate oligomer as a main raw material. For example, urethane acrylate oligomer, which is a synthetic oligomer, may be used. The main material may further include a monomer in which isobornyl acrylate (IBOA), hydroxybutyl acrylate (HBA), and hydroxy metaethyl acrylate (HEMA), which are low boiling point diluent type reactive monomers, are mixed, and as an additive, a photoinitiator (for example, 1-hydroxycyclohexyl phenyl-ketone, Diphenyl), Diphenyl (2,4,6-trimethylbenzoyl phosphine oxide), an antioxidant or the like may be mixed. The UV resin may be formed of a composition including 10 to 21% of an oligomer, 30 to 63% of a monomer, and 1.5 to 6% of an additive. In this case, the monomer may be a mixture of 10 to 21% of isobornyl acrylate (IBOA), 10 to 21% of hydroxybutyl acrylate (HBA), and 10 to 21% of hydroxy metaethyl acrylate (HEMA). The additive may be added in an amount of 1 to 5% of a photoinitiator to be able to perform a function of initiating photoreactivity, and may be formed of a mixture capable of improving yellowing by adding 0.5 to 1% of an antioxidant. The formation of the resin layer  130  using the above-described composition may form a layer with a resin such as UV resin instead of a light guide plate to adjust the refractive index and the thickness, and simultaneously, may satisfy all of adhesive characteristics, reliability and a mass production rate by using the above-described composition. The resin layer  130  may further include a beads or diffusion agent therein. The diffusion agent may have a spherical shape, and its size may range from 4 μm to 6 μm. The shape and size of the diffusion agent are not limited thereto. The content of the diffusion agent may be 5 wt % or less, for example, 2 wt % to 5 wt % in the first resin layer  130 . When the content of the diffusing agent is less than the above range, there is a limit to lowering the hot spot, and when it is larger than the above range, the light transmittance may decrease. Accordingly, the diffusion agent is disposed in the first resin layer  130  in the amount, thereby diffusing light to reduce hot spots without lowering the light transmittance. When a diffusion material or a light blocking material is disposed on the second resin layer  140 , the diffusion agent of the first resin layer  130  may be removed. In the lighting module, the first resin layer  130  is formed as a single layer, but the invention is not limited thereto and may include two or more resin layers. The first resin layer  130  may include a light transmitting layer containing no impurities and a diffusion layer including a diffusion agent on the light-transmitting layer. Alternatively, a diffusion layer may be formed under the light transmitting layer. 
     The second resin layer  140  may be formed on the first resin layer  130 . The second resin layer  140  may include a transparent material or a transparent insulating material. The second resin layer  140  may be molded on the surface of the first resin layer  130 . The second resin layer  140  may be made of a resin material such as epoxy or silicone. For example, the second resin layer  140  may be made of silicon, and may be made of silicon having different chemical bonds. The silicon is a polymer in which silicon as an inorganic material and carbon as an organic material are combined, and has thermal stability, chemical stability, abrasion resistance, gloss, etc., which are characteristics of inorganic materials and reactivity, solubility, elasticity, and processability, etc., which are characteristics of organic materials. The silicon may include general silicon and fluorine silicon having an increased fluorine ratio. Increasing the fluorine ratio of the fluorine silicone has an effect of improving moisture resistance. The second resin layer  140  may include a wavelength conversion means for receiving light emitted from the light emitting device  120  and providing wavelength-converted light. For example, the second resin layer  140  may include at least one selected from a group including phosphors, quantum dots, and the like. The phosphor or quantum dot may emit blue, green, or red light. 
     The phosphor may be evenly disposed inside the second resin layer  140 . The phosphor may include a phosphor of a fluoride compound, and for example, may include at least one of an MGF-based phosphor, a KSF-based phosphor, or a KTF-based phosphor. The phosphor may emit light with different peak wavelengths, and light emitted from the light emitting device  120  may emit light with different yellow and red or different red peak wavelengths. When the phosphor is a red phosphor, the red phosphor may have a wavelength range of 610 nm to 650 nm, and the wavelength may have a width of less than 10 nm. The red phosphor may include a fluoride-based phosphor. The fluoride-based red phosphor may be coated with a fluoride containing no Mn, or an organic material coating may be further included on the surface of the phosphor or the surface of the fluoride coating containing no Mn in order to improve reliability at high temperature/high humidity. In the case of the fluoride-based red phosphor as described above, unlike other phosphors, since a width of 10 nm or less may be realized, it may be used in a high-resolution device. The phosphor composition according to the embodiment should basically conform to stoichiometry, and each element may be substituted with another element in each group on the periodic table. For example, Sr may be substituted with Ba, Ca, Mg, etc. of the alkaline earth II group, and Y may be substituted with Tb, Lu, Sc, Gd of the lanthanum series. In addition, Eu or the like as an activator may be substituted with Ce, Tb, Pr, Er, Yb, etc. according to a desired energy level, and a sub-activator or the like may be additionally applied to the activator alone or to modify properties. The quantum dots may include a compound semiconductor of group II-VI or a group III-V compound, and may emit red light. The quantum dots may be, for example, ZnS, ZnSe, ZnTe, CdS, CdSe, CdTe, GaN, GaP, GaAs, GaSb, InP, InAs, In, Sb, AlS, AlP, AlAs, PbS, PbSe, Ge, Si, CuInS 2 , CuInSe 2  and the like, and combinations thereof. 
     The second resin layer  140  may include ink particles therein. The ink particles may include at least one of metal ink, UV ink, or curing ink. A size of the ink particles may be smaller than a size of the phosphor. A surface color of the ink particles may be any one of green, red, yellow, and blue. The types of inks may be selectively applied from 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. Here, the width or diameter of the ink particles may be 5 μm or less, for example, in a range of 0.05 μm to 1 μm. At least one of the ink particles may have a size smaller than the wavelength of light. The color of the ink particles may include at least one of red, green, yellow, and blue. For example, the phosphor emits a red wavelength, and the ink particles may include red. For example, the red color of the ink particles may be darker than the color of the phosphor or the wavelength of light. The ink particles may have a color different from the color of light emitted from the light emitting device. The ink particles may have an effect of blocking or blocking incident light. 
     The second resin layer  140  may include at least two or more of a diffusion agent, ink particles, and phosphors. The second resin layer  140  may include ink particles and phosphors without a diffusion agent. The content of the phosphor may be added in the same amount as the resin material forming the second resin layer  140 . A ration of the phosphor and a resin material of the second resin layer  140  may be added in a ratio of 40% to 60% compared to 40% to 60%. For example, the phosphor and the resin material of the second resin layer  140  may be added in the same ratio, for example, 50% to 50%. A difference of the content of the phosphor and the resin material of the second resin layer  140  may be 20% or less or 10% or less. In the embodiment, the content of the phosphor in the second resin layer  140  is added in the range of 40 wt % or more or 40 wt % to 60 wt %, so that the color of the surface of the second resin layer  140  may be provided as a color of the phosphor, and a light diffusion and wavelength conversion efficiency may be improved. In addition, transmission of the wavelength of light emitted from the light emitting device  120  through the second resin layer  140 , for example blue light, may be reduced. In addition, light extracted through the second resin layer  140  may be provided as a surface light source according to the wavelength of the phosphor. The second resin layer  140  may be provided with a thickness thinner than that of the first resin layer  130 . When the thickness of the second resin layer  140  is thick, light transmittance may decrease, and when the second resin layer  140  is thin, wavelength conversion efficiency may decrease. 
     The thickness of the second resin layer  140  may be, for example, in the range of 0.3 mm to 0.5 mm. The thickness of the second resin layer  140  may be 25% or less of the thickness of the first resin layer  130 , for example, in the range of 16% to 25%. When the thickness of the second resin layer  140  is thicker than the above range, the light extraction efficiency may decrease or the module thickness may increase. When it is smaller than the above range, it may be difficult to suppress hot spots or the wavelength conversion efficiency may decrease. In addition, the second resin layer  140  is a layer for wavelength conversion and external protection, and when it is thicker than the above range, a ductility characteristic of the module may be deteriorated, and design freedom may be lowered. The phosphor or quantum dots added to the second resin layer  140  may include at least one or two or more of amber light, yellow light, green light, red light, and blue light. 
     Since the second resin layer  140  includes a phosphor, an exterior color may be shown as the color of the phosphor. The surface of the second resin layer  140  or the surface of the lighting module may be provided as a red image when the light emitting device  120  is turned off, and when the light emitting device  120  is turned on, it has a predetermined luminous intensity. Red light may be diffused to provide a red image of a surface light source. The color coordinate of the surface color may have a different value within the color of the phosphor depending on whether the light emitting device  120  is turned on or off. Phosphors and ink particles may be included in the second resin layer  140 . The emission wavelength of the phosphor and the ink particles may include the same color or the same-colored color. The colored-color may be one of the colors of the phosphors. The content of the phosphor in the second resin layer  140  may be 23 wt % or less, for example, in a range of 12 wt % to 23 wt %, and the content of the ink particle may include 3 wt % or more, for example, in a range of 3 wt % to 13 wt %. Since the weight of the ink particles is smaller than the weight of the phosphor, the ink particles may be distributed in a region adjacent to the surface of the second resin layer  140  than the phosphor. Accordingly, the color of the surface of the second resin layer  140  may be provided as the color of ink particles. The transmission of light may be suppressed by these ink particles, and the hot spot may be lowered. When the ink particles are red, the outer surface of the lighting module  100  may be seen in red when the light emitting device  120  does not light up. That is, when the light is turned on or turned off, the lighting module  100  is all displayed in red, thereby preventing a sense of heterogeneity due to color difference. The second resin layer  140  may include a first layer to which a phosphor is added and a second layer to which the ink particles are added, and the first layer may be disposed between the first resin layer  130  and the second layer. By separately stacking the second layer having the ink particles, it is possible to reduce the phosphor content of the first layer. 
     As shown in  FIG. 2 , the second resin layer  140  may include a first region  141  formed on the first resin layer  130  and a second region  143  disposed on a side surface of the first resin layer  130 . The first region  141  of the second resin layer  140  may overlap some of N light emitting devices  120  in a direction perpendicular to the substrate  110 . The first region  141  of the second resin layer  140  may be formed so as not to overlap a part of at least one light emitting device  120  disposed on the outermost side of the substrate  110 . The first region  141  of the second resin layer  140  may be disposed parallel to the upper surface of the substrate  110 . The width of the first region  141  of the second resin layer  140  may be smaller than the width of the substrate  110  in the first and second directions. An edge of the first region  141  of the second resin layer  140  may be disposed inside the side surface of the substrate  110 . The first region  141  of the second resin layer  140  may include a flat surface. 
     The second region  143  of the second resin layer  140  may extend from the edge of the first region  141  of the second resin layer  140  toward the substrate  110 . The second region  143  of the second resin layer  140  may include a curved surface. The second region  143  of the second resin layer  140  may include a curved surface convex to the outside. The second region  143  of the second resin layer  140  may be formed to overlap the light emitting device  120  disposed on the outermost side of the substrate  110  in a vertical direction of the substrate  110 . The first region  141  may be defined as a flat portion or an upper surface portion. The second region  143  may be defined as a side portion or a curved portion. In the embodiment, the thickness of the first region  141  of the second resin layer  140  and the thickness of the second region  143  of the second resin layer  140  may be formed to correspond, but are not limited thereto. Here, the thickness of the first region  141  may be a thickness in a vertical direction or a vertical distance, and the thickness of the second region  143  may be a horizontal distance from an outer surface of the first resin layer  140  to the second region  43 . 
     As described above, since the second resin layer  140  is formed to have a curved side, the distance between the edge region of the second resin layer  140  and the light emitting device  120  disposed at the outermost side of the substrate  100  may be reduced. Accordingly, the second resin layer  140  may prevent dark lines from occurring at an interface between the first region  141  and the second region  143 . In the above, the arrangement structure of the light emitting device, the resin layer, and a layer having phosphor or ink particles was mainly described, but in order to remove dark lines and improve the uniformity of light, the relationship between the distance between the light emitting device and the phosphor layer, and the curvature radius of the second region of the phosphor layer, the thickness of the resin layer and the phosphor layer becomes important. 
     Therefore, in the following, detailed specifications of each component of the lighting module will be described in more detail. As shown in  FIG. 3 , the second region  143  of the second resin layer  140  may include a curved surface. The second region  143  of the second resin layer  140  may include a first point P 1 , a second point P 2 , and a third point P 3 . The first point P 1 , the second point P 2 , and the third point P 3  may be points on an outer surface of the second region  143  of the second resin layer  140 . Here, the plurality of light emitting devices  120  include a first light emitting device  121 , and the first light emitting device  121  is disposed around the outer periphery of the first resin layer  120  among a plurality of light emitting devices, or may be a light emitting device adjacent to a side surface of the resin layer  120 . The first point P 1  may be a region in contact with an outer surface of the second region  143  of the second resin layer  140  in a horizontal direction from the center C 1  of the first light emitting device  121  which is most adjacent to the side surface of the first resin layer  130 . The third point P 3  may be a region in contact with the outer surface of the second region  143  of the second resin layer  140  and a straight line perpendicular from the center C 1  of the first light emitting device  121 . The horizontal direction may be a direction parallel to or horizontal to the upper surface of the substrate  110 , and the vertical direction may be a direction perpendicular to the upper surface of the substrate  110 . The second point P 2  may be a region between the first point P 1  and the third point P 3  of the second region  143  of the second resin layer  140 . 
     A first distance L 1  from the center C 1  of the first light emitting device  121  to the first point P 1 , a second distance L 2  from the center C 1  of the first light emitting device  121  to the second point P 2 , and a third distance L 3  from the center C 1  of the first light emitting device  121  to the third point P 3  may be formed differently from each other. The third distance L 3  from the center C 1  of the first light emitting device  121  to the third point P 3  may be formed greater than the first distance L 1  from the center C 1  of the first light emitting device  121  and the first point P 1  and the second distance L 2  from the center C 1  of the first light emitting device  121  to the second point P 2 . The second distance L 2  from the center C 1  of the first light emitting device  121  and the second point P 2  may be formed greater than the first distance L 1  from the center C 1  of the first light emitting device  121  to the first point P 1 . Conventionally, since a second distance L 2  between the center C 1  of the first light emitting device  121  and the second point P 2  is formed significantly farther than a third distance L 3  between the center C 1  of the first light emitting device  121  and the third point P 3  and the first distance L 1  between the center C 1  of the first light emitting device  121  and the first point P 1 , there has been a problem that dark lines occur at the second point P 2 . In the embodiment, since the second region  143  of the second resin layer  140  is curved to reduce the second distance L 2  between the center C 1  of the first light emitting device  121  and the second point P 2 , there is an effect of preventing the occurrence of dark lines on the second resin layer  140 . In addition, the embodiment improves the light uniformity of the side surface of the second resin layer  140  by forming a curved surface such that there is little difference between the values of the first distance L 1 , the second distance L 2 , and the third distance L 3 . In addition, uniformity of light between the upper and side surfaces of the second resin layer  140  may be improved. Actually, the distance values of the first distance L 1 , the second distance L 2 , and the third distance L 3  are different, but the distance difference is very small toward the upper and side surfaces of the second resin layer  140 . Therefore, it is difficult to recognize the difference in luminance when viewed from the outside. 
     The first distance L 1  between the center C 1  of the first light emitting device  121  and the first point P 1  may be determined according to the distance between the light emitting devices  120 . The light emitting device  120  may be disposed such that the distance L 4  between the first light emitting device  121  and a light emitting device adjacent thereto may be 5.5 mm to 6.5 mm. When the distance L 4  between the first light emitting device  121  and a light emitting device adjacent thereto exceeds 6.5 mm, a hot spot may occur in a region where the light emitting device  120  is disposed when viewed from the outside. The first light emitting device  121  may be disposed such that the first distance L 1  between the center C 1  of the first light emitting device  121  and the first point P 1  may be 44% to 55% of the fourth distance L 4  between the light emitting devices  120 . For example, the first distance L 1  between the center C 1  of the first light emitting device  121  and the first point P 1  may be determined to be around 3 mm. When the first distance L 1  between the center C 1  of the first light emitting device  121  and the first point P 1  is less than 44% or exceeds 55% of the fourth distance L 4  between the light emitting devices  120 , light emitted through the second region  143  of the second resin layer  140  may appear excessively bright or dark, resulting in a problem in that light uniformity is deteriorated. 
     The radius of curvature R of the second region  143  of the second resin layer  140  may be determined according to the thickness of the second resin layer  140  and the first resin layer  130 . The radius of curvature R of the second region  143  of the second resin layer  140  may be formed equal to or greater than the sum of the thickness t 1  of the first resin layer  130  in a direction perpendicular to the substrate  110  and the thicknesses t 2  of the first region  141  of the second resin layer  140 . For example, the radius of curvature R of the second region  143  of the second resin layer  140  may be formed to be 100% to 110% of the sum of the thickness t 1  of the first resin layer  130  in a direction perpendicular to the substrate  110  and the thickness t 2  of the first region  141  of the second resin layer  140 . Here, the thickness t 1  of the first resin layer  130  may be 3.5 mm to 5 mm, and the thickness t 2  of the first region  141  of the second resin layer  140  may be 0.5 mm or less, for example, in a range of 0.3 mm to 0.5 mm. Accordingly, the radius of curvature R of the second region  143  of the second resin layer  140  may be 5.5 mm to 6.0 mm. Here, when the thickness t 2  of the first region  141  of the second resin layer  140  is formed to be less than 0.5 mm, the light efficiency may be increased. In addition, the second resin layer  140  may include a fourth point P 4  between the first region  141  and the second region  143 . The fourth point P 4  may be disposed in a region of the outer surface of the second resin layer  140 . Also, a fifth point P 5  may be included on the substrate  110  having the shortest distance from the fourth point P 4 . The distance L 5  between the fourth point P 4  of the second resin layer  140  and the fifth point P 5  of the substrate  110  may be greater than the first distance L 1  from the first point P 1  of the second region  143  of the second resin layer  140  to the first light emitting device  121 . In addition, the distance L 5  between the fourth point P 4  of the second resin layer  140  and the fifth point P 5  of the substrate  110  may be formed to be less than or equal to the radius of curvature R of the second region  143  of the second resin layer  140 . 
     The second resin layer  140  may include a seventh point P 7  where the second region  143  of the second resin layer  140  and the substrate  110  contact each other. The seventh point P 7  may be on an inner surface of the second resin layer  140  where the second region  143  of the second resin layer  140  and the first resin layer  130  contact each other. The distance L 7  between the seventh point P 7  of the second region  143  of the second resin layer  140  and the side surface of the light emitting device  120  may be formed less than the distance L 4  between the light emitting devices  120 . The fifth point P 5  formed on the substrate  110  may be disposed in a region larger than the distance from the seventh point P 7  to the first light emitting device  121  and smaller than or equal to the radius of curvature R. have. As described above, the radius of curvature R of the second region  143  of the second resin layer  140  may be determined through various conditions of the lighting module  100 . 
       FIG. 4  is a perspective view showing a first resin layer in the lighting module of  FIG. 2 ,  FIG. 5  is a plan view illustrating a relationship according to a distance between a light emitting device and a first resin layer, and  FIG. 6  is a cross-sectional view taken along B-B of  FIG. 4 . As shown in  FIG. 4 , the first resin layer  130  may include a flat upper surface  131 , a first side surface  133  bent toward the substrate  110  from the upper surface  131 , a second side surface  135  disposed adjacent to the first side surface  133 , and an edge region  137  disposed between the first side surface  133  and the second side surface  135 . The first side surface  133 , the second side surface  135 , and the edge region  137  may include a curved surface. 
     The upper surface  131  of the first resin layer  130  may be in contact with a lower portion of the first region of the second resin layer. The side surfaces  133  and  135  and the edge regions  137  of the first resin layer  130  may contact the second region of the second resin layer. That is, the upper surface  131 , the side surfaces  133  and  135 , and the edge regions  137  of the first resin layer  130  may be formed in a shape corresponding to the inner surface of the second resin layer. The first resin layer  130  may include an eighth point P 8  where the first side surface  133  of the first resin layer  130  and the edge region  137  contact in a region in contact with the upper surface of the substrate  110 . The first resin layer  130  may include a ninth point P 9  where the second side surface  135  and the edge region  137  contact in a region in contact with the upper surface of the substrate  110 . The first resin layer  130  may include a tenth point P 10  that is an outer surface of the edge region  137  in a region in contact with the upper surface of the substrate  110 . Here, a region where the first resin layer  130  and the upper surface of the substrate  110  contact each other may include a straight line  133   a.    
     As shown in  FIG. 5 , a distance L 10  from the center C 1  of the first light emitting device  121  adjacent to the edge region  137  on the first resin layer  130  to the tenth point P 10  of the edge region  137  may be formed equal to a distance L 8  from the center C 1  of the first light emitting device  121  to the eighth point P 8  of the first resin layer  130 . The distance L 10  from the center C 1  of the first light emitting device  121  adjacent to the edge region  137  on the first resin layer  130  to the tenth point P 10  of the edge region  137  may be formed equal to a distance L 9  from the center C 1  of the light emitting device  121  to the ninth point P 9  of the first resin layer  130 . Accordingly, the light emitted from the edge region  137  of the first resin layer  130  may be emitted to have the same brightness as the light emitted from the first side surface  133  and the second side surface  135  of the first resin layer  130 . 
     As shown in  FIG. 6 , the outer side surface of the edge region  137  of the first resin layer  130  may include an eleventh point P 11 , which is the shortest distance perpendicular to the substrate  110  from the center C 1  of the first light emitting device  121 . Therefore, the line distance L 11  from the center C 1  of the first light emitting device  121  to the eleventh point P 11  may be formed greater than the distance L 10  from the center C 1  of the first light emitting device  121  to the tenth point P 10 . That is, the edge region  137  of the first resin layer  130  may be increased the distance from the first light emitting device  121  to the sides surface toward the upper surface of the first resin layer  130 , similar to the side surfaces of the first resin layer  130 . It may be seen that the lighting module of the first embodiment may prevent the occurrence of dark lines by forming the boundary region between the side and the side in a curved surface. In addition, by forming the side surface of the lighting module to have a curved surface, it may be seen that the overall light luminance of the lighting module is uniform. 
     As shown in  FIG. 7 , a third region  145  of the second resin layer  140  may be vertically disposed between the second region  143  of the second resin layer  140  and the substrate  110 . One end of the third region  145  of the second resin layer  140  may be in contact with the second region  143  of the second resin layer  140  and the other end of the third region  145  of the second resin layer  140  may be in contact with the upper surface of the substrate  110  may be in contact with the upper surface. A height h 1  of the third region  145  of the second resin layer  140  may be smaller than a height h 2  of the light emitting device  120 . In the embodiment, the thickness of the first region  141  of the second resin layer  140 , the thickness of the second region  143  of the second resin layer  143 , and the thickness of the third region  145  of the second resin layer  140  may be formed to correspond. The second region  143  of the second resin layer  140  may include a first point P 1 , a second point P 2 , and a third point P 3 . The first point P 1 , the second point P 2 , and the third point P 3  may be on an outer side surface of the second region  143  of the second resin layer  140 . The first point P 1  may be a region in contact with the outer surface of the second region  143  of the second resin layer  140  in a horizontal direction to the substrate  110  at the center C 1  of the light emitting device  120  which is most adjacent to the side surface of the first resin layer  130 . The first point P 1  may be a region in contact with the second region  143  and the third region  145  of the second resin layer  140 . The second point P 2  may be on any one of the outer surfaces of the second region  143  of the second resin layer  140 . The third point P 3  may be a region in contact with a straight line perpendicular to the substrate  110  from the center C 1  of the first light emitting device  121  and the outer surface of the second region  143  of the second resin layer  140 . 
     The first distance L 1  between the center C 1  of the first light emitting device  121  and the first point P 1 , and the second distance L 2  between the center C 1  of the first light emitting device  121  and the second point P 2 , and the third distance L 3  between the center C 1  of the first light emitting device  121  and the third point P 3  may be formed differently from each other. The third distance L 3  from the center C 1  of the first light emitting device  121  to the third point P 3  may be formed greater than the first distance L 1  from the center C 1  of the first light emitting device  121  to the first point P 1  and the second distance L 2  from the center C 1  of the first light emitting device  121  to the second point P 2 . The second distance L 2  between the center C 1  of the first light emitting device  121  and the second point P 2  may be formed greater than the first distance L 1  from the center C 1  of the first light emitting device  121  to the first point P 1 . The second resin layer  140  may include a fourth point P 4  between the first region  141  and the second region  143 . The fourth point P 4  may be disposed on the outer surface of the second resin layer  140 . Also, a fifth point P 5  may be included on the substrate  110  having the shortest distance from the fourth point P 4 . The distance L 5  between the fourth point P 4  of the second resin layer  140  and the fifth point P 5  of the substrate  110  may be greater than a distance from from the first point P 1  of the second region  143  of the second resin layer  140  to the first light emitting device  121 . In addition, the distance L 5  between the fourth point P 4  of the second resin layer  140  and the fifth point P 5  of the substrate  110  may be less than or equal to the radius of the curvature R of the second region  143  of the second resin layer  140 . The third region  145  of the second resin layer  140  may include a sixth point P 6 . The sixth point P 6  may be a region in which the outer surface of the third region  145  of the second resin layer  140  and the upper surface of the substrate  110  contact each other. The distance L 6  from the center C 1  of the first light emitting device  121  to the sixth point P 6  may be greater than the distance L 1  from the center C 1  of the first light emitting device  121  to the first point P 1 . 
     Since the lighting module according to the embodiment has a second resin layer  140  having a straight line perpendicular to the upper surface of the substrate  110  on the side surface of the first resin layer  130 , there is an effect of forming more uniform luminance of light emitted to the side surface. 
       FIG. 8  is a perspective view of a lighting assembly having a lighting module according to the second embodiment, and  FIG. 9  is a cross-sectional view taken along line C-C of the lighting assembly of  FIG. 8 . Referring to  FIGS. 8 and 9 , the lighting assembly may include the lighting module  100  disclosed above, a first cover  210  having an opening portion  215  in which the first and second resin layers  130  and  140  of the lighting module  100  protrude, a second cover  220  supporting the first cover  210  and the lighting module  100 . The first cover  210  may be a sub bezel, an upper or a top cover, and the second cover  220  may be a lower bezel, a lower or a bottom cover. 
     In the lighting module  100 , the substrate  110  and the first and second resin layers  130  and  140  may have a predetermined curvature and may be coupled to the first and second covers  210  and  220 . The first and second covers  210  and  220  may support and fix a region other than the light emitting region of the lighting module  100 . The emission region may be a region of the first and second resin layers  130  and  140  on the light emitting device  120 . The upper surface area of the substrate  110  of the lighting module  100  may be larger than the lower surface area of the first resin layer  130 . An outer portion of the substrate  110  may extend further outward from each edge of the first resin layer  130 . A length D 2  of the outer portion of the upper surface of the substrate  110  is a distance from the side surface of the second resin layer  130  to the edge of the substrate, and may be 0.1 times or greater of the thickness of the lighting module. For example, the length D 2  of the outer portion may be 1 mm or less, for example, in the range of 0.3 mm to 1 mm. When it is smaller than the above range, there is no support effect, and when it is larger than the above range, material loss or module size may increase. The outer portion of the substrate  110  is a non-emission region without a resin layer, and the first cover  210  and the second cover  220  are coupled to the outer portion to facilitate assembly and use of the lighting module  100  may provide. 
     The first cover  210  may include a substrate cover portion  211  having an opening portion  215  and a side cover portion  213  outside the substrate cover portion  211 . The size of the upper surface of the opening portion  215  may be larger than the size of the lower surface of the first resin layer  130 , so that the second resin layer  140  may protrude through the opening portion  215 . The upper surface S 1  and the side surface S 2  of the second resin layer  140  may be curved or flat, and the edge portion S 3  between the upper surface S 1  and the side surface S 2  may be curved. The second resin layer  140  may be disposed on an upper surface and a side surface of the first resin layer  130 . The substrate cover portion  211  is spaced apart from the second resin layer  140  to prevent the first resin layer  130  from being exposed. That is, the second resin layer  140  disposed on the side surface S 2  of the first resin layer  140  may prevent the first resin layer  130  from being exposed from the substrate cover portion  211 . 
     The substrate cover portion  211  protects the upper surface of the substrate  110 . The substrate cover portion  211  covers an outer upper surface of the substrate  110  and faces the side surface S 2  of the second resin layer  140 . The upper surface of the substrate cover portion  211  may be disposed lower than the upper surface S 1  of the second resin layer  140 , for example, disposed at a point less than half a height of the upper surface of the second resin layer  140 . The upper surface of the substrate cover portion  211  may be disposed lower than the upper surface of the first resin layer  130 . Accordingly, blocking of light by the substrate cover portion  211  may be minimized with respect to the side light emitted from the lighting module  100 . 
     The side cover portion  213  may be bent or extended toward the second cover  220  through the substrate cover portion  211 . The side cover portion  213  covers the side surface of the substrate  110  and may protect the side surface of the substrate  110 . The side cover portion  213  may protrude lower than the lower surface of the substrate  110 . At least one or both of the substrate cover portion  211  and the side cover portion  213  may include a coupling member (not shown) coupled to the substrate  110  and the second cover  220 . The coupling member may include a hook or a locking jaw structure. The second cover  220  has a thickness greater than that of the first cover  210  and supports the lighting module  100 . 
     The second cover  220  may include a substrate support portion  221  under the substrate  110  and a coupling portion  223  under the substrate support portion  221 . The substrate support portion  221  is disposed under the substrate  110  and may be adhered to the substrate  110 . The substrate support portion  221  has an upper surface width or an upper surface area that is wider than a lower surface width D 1  or a lower surface area of the substrate  110  and supports the substrate  110 . The coupling portion  223  is provided in a stepped structure from the substrate support portion  221 , and the side cover portion  213  is coupled to the coupling portion  223 . The coupling portion  223  may have a hook or a locking groove structure and may be coupled to the side cover portion  213 . A support protrusion  235  may be disposed under the first cover  210 , but the embodiment is not limited thereto. One or a plurality of the support protrusions may be arranged. The material of the first and second covers  210  and  220  may be made of plastic or may include a resin material having good moisture resistance. As another example, at least one of the first and second covers  210  and  220  may include a metal material. Since the first and second covers  210  and  220  are provided as covers  210  and  220  supporting the outer and lower portions of the lighting module  100  having a thickness of 5.5 mm or less, assembly or installation using the lighting assembly having the lighting module  100  may be easy. In addition, when the lighting assembly is used, durability or reliability may be improved even when used for a long time. 
     The first and second covers  210  and  220  may have a curved shape or a straight shape along the outer shape of the lighting module  100 . The first and second covers  210  and  220  may include a cable lead portion  226  through which a power cable drawn from the lighting module  100  is disposed. The cable lead portion  226  may protrude from a region between the first and second covers  210  and  220 . The power cable may be connected to the substrate  110  of the lighting module  100 . 
       FIG. 10  is a perspective view showing a lighting assembly having a lighting module according to a third embodiment,  FIG. 11  is a rear view of the lighting assembly of  FIG. 10 , and  FIG. 12  is an exemplary view before combining the lighting assembly of  FIG. 10  and the main frame.  FIG. 13  is a perspective view showing an example of a combination of the lighting assembly of  FIG. 12  and the main frame,  FIG. 14  is a side cross-sectional view showing an electrical contact structure of the lighting assembly in the combination structure of  FIG. 13 , and  FIG. 15  is a partial enlarged view of a combination structure of  FIG. 14 . 
     Referring to  FIGS. 10 to 12 , the lighting assembly  200  may include the lighting module  100  disclosed above, and a first cover  210  having an opening portion  215  from which the second resin layer  140  of the lighting module  100  protrudes, and the second cover  220  supporting the first cover  210  and the lighting module  100 . The first cover  210  may be a sub bezel, an upper or a top cover, and the second cover  220  may be a lower bezel, a lower or a bottom cover. The first and second covers  210  and  220  may be coupled through a coupling member or an adhesive member, but the embodiment is not limited thereto. The first and second covers  210  and  220  may be defined as a cover  201 . 
     The cover  201 :  210 ,  220  may include first and second coupling members  241  and  243  spaced apart from the coupling front end  245 , and the first and second coupling members  241  and  243  may be disposed at positions corresponding to both sides of the lighting module  100 . The first and second coupling members  241  and  243  may be spaced apart from the coupling front end  245  by the same distance D 3 . The first and second coupling members  241  and  243  may include locking grooves that are concave toward the lighting module  100  from side surfaces of the first and second covers  210  and  220 . As another example, the first and second coupling members may be provided as locking projections. The coupling front end portion  245  may be one side surface disposed to one end of the cover or in a coupling direction. The locking grooves that are the first and second coupling members  241  and  243  may be disposed at a depth D 4  where the substrate  110  of the lighting module  100  is not exposed. The depth D 4  of the locking grooves may be arranged to be less than ½ of the width of the first cover  210 , and when the depth is out of the above range, the substrate  110  may be exposed and a stiffness of the first cover  210  may decrease. The locking groove may be provided in a structure having a narrow inlet and a wider inside than the inlet, or may be provided in a structure inclined toward the coupling front end portion  245 . A plurality of terminal grooves  225  are disposed on the rear surface of the second cover  220  or in the substrate support portion  221 , and the terminal grooves  225  expose the rear surface of the substrate  110 . Terminals  251  of the substrate  110  may be exposed in the terminal grooves  225 , respectively. The terminal grooves  225  may be disposed adjacent to the coupling front end portion  245 . The side surface of the terminal grooves  225  may be inclined in either side direction, and may include, for example, a surface inclined toward the coupling front end portion into which the contact terminal is inserted. The terminal grooves  225  may be disposed closer to the first and second coupling members  241  and  243  with respect to the coupling front end portion  245  or may be disposed closer to one end of the lighting module. 
     As shown in  FIG. 12 , the lighting assembly  200  may be coupled to the main case  300 . In the main case  300 , an insertion hole  310  and a locking protrusion  341  may be disposed outside the insertion hole  310 , and a contact terminal  301  may be disposed on the bottom of the insertion hole  310 . Guide portions  342  and  343  for guiding around the inlet may be disposed in the insertion hole  301 . The coupling portion  223  disposed at the front end of the lighting module  100  may be inserted into and coupled to the insertion hole  301 . The insertion hole  301  may provide an open region so that an upper portion of the second resin layer  140  of the lighting module  100  may protrude. In the lighting assembly  200  of  FIG. 12 , the coupling front end portion  245  corresponds to the insertion hole  310  of the main case  300 , and is coupled as shown in  FIG. 13 . At this time, the outer periphery of the lighting assembly  200  is inserted into the insertion hole  210  and inserted along the guide portions  342  and  343 , and the terminal grooves  225  of the first and second coupling members  241  and  243  of the lighting module  100  are hooked and coupled to the locking protrusions  341 . The locking protrusions  341  may protrude from both sidewalls of the insertion hole  210  in a direction facing each other. As another example, a locking protrusion may be formed in the lighting module, and a locking groove may be disposed in the assembly. 
     As shown in  FIGS. 14 and 15 , a contact terminal  301  disposed at the bottom of the insertion hole  310  of the main case  300  is inserted into the terminal groove  225  of the second cover  220 , and the contact terminal  301  may contact the terminal  251  of the substrate  110  of the lighting module  100 . At this time, the contact terminal  301  may have a leaf spring shape and may provide a predetermined elasticity, and thus may be in close contact with the terminal  251  of the substrate  110 . Here, the lighting assembly  200  is supported by the main case  300  through the coupling front end portion  245  and is electrically connected to the contact terminal  301  through the stepped groove  225 , so that the combination the main case  300  and the the lighting assembly  200  may be completed. A portion of the contact terminal  301  protrudes in the direction of the insertion hole  301  and may have a spring shape having an elastic repulsive force. The lighting assembly  200  may be coupled to or separated from the main case  300 . The lighting assembly  200  has been described as an example of exposing the terminal  251  of the substrate  110  to the lower portion of the second cover  220 , but the terminal may be disposed on the upper surface or a lower surface of a substrate  110  positioned on the coupling front end portion  245 . The above-described lighting assembly  200  provides a connection of a power cable and a mechanical mounting structure, so that the assembly  200  having the lighting module  100  may be coupled to the main case  300  without using separate equipment. Such a lighting assembly may be improved in assembling or detachability to the main case. 
       FIG. 16  is a plan view of a lighting assembly according to a fourth embodiment,  FIG. 17  is an example of a side cross-sectional view of the lighting assembly of  FIG. 16 ,  FIG. 19  is a side view of a combination of the lighting assembly of  FIG. 18  and a main frame, and  FIG. 20  is a side cross-sectional view taken along line D-D of  FIG. 19 . 
     Referring to  FIGS. 16 and 17 , the lighting assembly  400  may include a plurality of lighting modules  100 A,  100 B, and  100 C and a cover  410  in which the plurality of lighting modules  100 A,  100 B, and  100 C are coupled. The substrate cover portion  411  of the cover  410  is disposed on the substrate  110  of each of the lighting modules  100 A,  100 B, and  100 C, and the side cover portion  413  may extend from outside the side surface of the substrate  110  in a direction of the lower portion of the substrate  110 . One or more locking protrusions  430  of the cover  410  protrude below the substrate  110  of the lighting modules  100 A,  100 B, and  100 C, and a locking jaw may be formed at the lower end portion of the locking protrusions. The locking protrusion  430  may be hooked through the side surface of the substrate  110  or may protrude through the hole of the substrate  110 . At this time, the cover  410  fixes and supports the substrate  110  of the lighting module  100 A,  100 B, and  100 C by the locking protrusions  430 , and the locking protrusion  430  protruding under the cover may be combined with another main case. The light emitting regions of the plurality of lighting modules  100 A,  100 B, and  100 C may have the same shape, and may be coupled to the cover  410  having different sizes or different shapes. The second resin layer  140  of the lighting modules  100 A,  100 B, and  100 C may protrude through the opening portion  415  of the cover  410 . In this case, the substrate  110  of the lighting module  100  may be bonded to the cover  410  through thermal fusion, or may be fixed with an adhesive. 
     As shown in  FIGS. 18 and 19 , the lighting assemblies  400  and  400 A may be inserted into the main case  450  and coupled to the main case  450 . The light emitting regions of the lighting assemblies  400  and  400 A may be respectively inserted and protruded into the opening portion  451  of the main case  450 . As shown in  FIGS. 19 and 20 , a first lighting assembly  400  and a second lighting assembly  400 A may be coupled to the main case  450  through a rear opening portion  470 . The first and second lighting assemblies  400  and  400 A may be supported and fixed by the covers  451 ,  452 ,  461 ,  462 , and  463 , and a light emitting region may be exposed. The first and second lighting assemblies  400  and  400 A may be second resin layers  140 A and  140 B to which different phosphors are added to the second resin layers  140 A and  140 B. The first and second lighting assemblies  140  and  140 B may include second resin layers  140 A and  140 B having ink particles of different colors. At least one or both of the second resin layers  140 A and  140 B may include phosphor and ink particles. As shown in  FIGS. 18 and 19 , since each substrate  110  of the lighting modules  100 A,  100 B, and  100 C is exposed under the cover, power to the substrate  110  may be easily supplied. The above-described lighting assembly  400  and  400 A is coupled with a plurality of lighting modules  100 A,  100 B, and  100 C, so that the assembly having the lighting modules  100 A,  100 B, and  100 C without using a separate fixture may be coupled to the main case. Such a lighting assembly may improve the assembling property or detachability to the main case. The lighting modules of the lighting assembly disclosed in the above embodiment(s) may each include the lighting modules disclosed in the first embodiment. The lighting assembly according to the above-described embodiment(s) may be coupled to a vehicle lamp. For example, when applied to a tail lamp, a brake lamp, or a turn signal lamp of a vehicle, it may be applied to a turn signal lamp of a vehicle. 
     Features, structures, effects, and the like described in the embodiments above are included in at least one embodiment of the invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, and the like illustrated in each embodiment may be combined or modified for other embodiments by a person having ordinary knowledge in the field to which the embodiments belong. Therefore, contents related to such combinations and modifications should be interpreted as being included in the scope of the invention.