Lighting device and display lamp comprising same

Abstract

A lighting device according to an embodiment comprises: a substrate; and a partition module in which are provided a plurality of pixel holes, wherein the partition module may be provided, on the upper surface, with an assembly placement recess near each pixel hole. In addition, further included may be: a plurality of light sources disposed on the substrate and aligned with the respective pixel holes; and optical modules inserted into the respective pixel holes of the partition module. The optical modules are provided with an assembly protrusion near the upper surface so that same can be seated in or separated from the assembly placement recesses of the partition module.

Description

Lighting devices and indicator lamps including them

[0001] The embodiment relates to a lighting device capable of implementing pixel lighting using a multi-array assembly method and a display lamp including the same.

[0002] Typical lighting applications include not only automotive lighting but also lights for displays and signage.

[0003] Semiconductor light-emitting devices, such as light-emitting diodes (LEDs), offer advantages over conventional light sources like fluorescent lamps and incandescent lamps, including low power consumption, a semi-permanent lifespan, fast response speed, safety, and environmental friendliness. These light-emitting diodes are applied to various lighting devices, such as display devices, indoor lights, and outdoor lights.

[0004] Recently, lamps employing light-emitting diodes have been proposed as automotive lighting.

[0005] Here, light-emitting diodes are advantageous in that they consume less power compared to incandescent bulbs, allow for greater design freedom due to their small size, and are economical due to their semi-permanent lifespan.

[0006] However, lighting devices using such light-emitting diodes faced a problem of reduced cost competitiveness due to the high complexity and difficulty of the manufacturing process.

[0007] Therefore, in the future, it is necessary to develop lighting devices that can enhance assemblability and cost competitiveness by minimizing manufacturing and assembly processes.

[0008] An embodiment of the invention can provide a lighting device capable of improving assembly and cost competitiveness by minimizing manufacturing and assembly processes, by manufacturing a partition module and an optical module, in which a plurality of pixel holes arranged in arrays for each light source are arranged, by an injection molding method, and assembling the optical modules by inserting each of the pixel holes of the partition module into the partition module using a multi-array assembly method.

[0009] An embodiment comprises, as a lighting device, a substrate and a partition module in which a plurality of pixel holes are arranged, and the partition module may have an assembly mounting groove formed on an upper surface around the pixel holes.

[0010] Another embodiment is a display lamp comprising at least one lighting device, wherein the lighting device comprises at least one lighting device to which a partition module and an optical module are assembled, and a cover lens covering the lighting device, the lighting device comprises a substrate and a partition module in which a plurality of pixel holes are arranged, and the partition module may have an assembly mounting groove formed on an upper surface around the pixel holes.

[0011] The lighting device according to the embodiment can improve assembly efficiency and cost competitiveness by minimizing manufacturing and assembly processes by manufacturing a partition module and an optical module, in which a plurality of pixel holes aligned with each light source are arranged, using an injection molding method, and assembling the optical module by inserting each one into the pixel holes of the partition module using a multi-array assembly method.

[0012] FIGS. 1 to 7 are exemplary drawings showing a lighting device according to one embodiment.

[0013] FIGS. 8 to 12 are exemplary drawings showing a lighting device according to another embodiment.

[0014] FIGS. 13 to 21 are exemplary drawings showing a lighting device according to another embodiment.

[0015] FIGS. 22 to 25 are exemplary drawings showing a lighting device according to another embodiment.

[0016] FIGS. 26 to 33 are exemplary drawings showing a lighting device according to another embodiment.

[0017] FIG. 34 is an example diagram showing the pattern hole shape of a pattern mask of a lighting device according to an embodiment.

[0018] FIG. 35 is an exemplary diagram showing the pattern hole arrangement of a pattern mask of a lighting device according to an embodiment.

[0019] FIG. 36 is a plan view of a vehicle equipped with a lighting device according to an embodiment.

[0020] FIG. 37 is a drawing showing an example of the taillights and indicator lamps of the vehicle of FIG. 36.

[0021] FIG. 38 is an example illustration showing the symbol or character of the indicator lamp displayed by the lighting device of FIG. 37.

[0022] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0023] However, the technical concept of the present invention is not limited to the described embodiments but can be implemented in various different forms, and within the scope of the technical concept of the present invention, one or more of the components among the embodiments may be selectively combined or substituted. Furthermore, terms used in the embodiments of the present invention (including technical and scientific terms) may be interpreted in a meaning generally understood by those skilled in the art to which the present invention belongs, unless explicitly and specifically defined otherwise. Terms used generally, such as those defined in advance, may be interpreted by considering their meaning in the context of the relevant technology. Additionally, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention.

[0024] In this specification, the singular form may include the plural form unless specifically stated otherwise in the text, and when described as “at least one of A and B and C (or more than one),” it may include one or more of all combinations that can be formed from A, B, and C. Furthermore, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are intended merely to distinguish the component from other components and are not determined by the essence, order, or sequence of the component. Also, when it is stated that a component is 'connected,' 'combined,' or 'connected' to another component, this may include not only cases where the component is directly connected, combined, or connected to the other component, but also cases where it is 'connected,' 'combined,' or 'connected' due to another component located between the component and the other component.

[0025] Furthermore, when described as being formed or placed "above or below" each component, "above" or "below" includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or placed between the two components. Additionally, when expressed as "above or below," it may include the meaning of a downward direction as well as an upward direction relative to a single component.

[0026] The lighting device according to the present invention can be applied to various lamp devices requiring lighting, such as vehicle lamps, household lighting devices, or industrial lighting devices. For example, when the lighting device is applied to a vehicle lamp, it can be applied to headlamps, parking lights, side mirror lights, fog lights, tail lamps, brake lights, daytime running lights, vehicle interior lighting, door scars, rear combination lamps, backup lamps, etc. The lighting device of the present invention can also be applied to indoor and outdoor advertising devices, display devices, and various types of electric vehicles. In addition, it can be applied to all lighting-related fields or advertising-related fields that are currently developed and commercialized or that can be realized through future technological advancements.

[0027] FIGS. 1 to 7 are exemplary drawings showing a lighting device according to one embodiment, showing a lighting device of a 3*3 pixel array including a first-layer bulkhead module. FIG. 1 is an assembly drawing of a lighting device according to one embodiment, FIG. 2 is an exploded view of a lighting device according to one embodiment, and FIGS. 3 to 7 are perspective views showing the bulkhead module and optical module of FIG. 2 in detail.

[0028] As illustrated in FIGS. 1 to 7, the lighting device (1000) may include a substrate (1100), a plurality of light sources (1200) disposed on the substrate (1100), a partition module (1300) in which a plurality of pixel holes (1310) arranged in array with each light source (1200) are disposed, and an optical module (1400) each inserted into the pixel holes (1310) of the partition module (1300). Here, the partition module (1300) and the optical module (1400) may be manufactured by injection molding and may be assembled or separated from each other.

[0029] As shown in FIG. 3, the partition module (1300) may have an assembly mounting groove (1320) formed on the upper surface around the pixel hole (1310). And, the optical module (1400) may have an assembly protrusion (1410) formed around the upper surface so that the assembly protrusion (1410) is mounted within the assembly mounting groove (1320) of the partition module (1300) and assembled, or the assembly protrusion (1410) may be detached from the assembly mounting groove (1320) of the partition module (1300) and separated.

[0030] Additionally, the partition module (1300) may include an assembly border (1330) formed along the periphery of a pixel hole (1310) on the lower surface facing the substrate (1100), as shown in FIGS. 4 and 6. Here, the assembly border (1330) may protrude by a predetermined length in the vertical direction. Additionally, the assembly border (1330) may have a thickness of a predetermined length in the horizontal direction.

[0031] Additionally, the lighting device (1000) may further include a support member (1600) disposed between the substrate (1100) and the partition module (1300), wherein a plurality of holes (1610) corresponding to each pixel hole (1310) of the partition module (1300) are formed as shown in FIG. 2. Here, the partition module (1300) may be assembled to the support member (1600) by inserting the assembly edge (1330) of the partition module (1300) into the hole (1610) of the support member (1600). For example, one pixel hole (1310) of the partition module (1300) and the corresponding hole (1610) of the support member (1600) may overlap each other in a vertical direction. For example, the area of ​​each hole (1610) of the support member (1600) may be greater than the area of ​​each pixel hole (1310) of the bulkhead module (1300). For another example, the vertical thickness of the support member (1600) may be greater than the vertical thickness of the assembly edge (1330) of the bulkhead module (1300).

[0032] Additionally, when the support member (1600) and the bulkhead module (1300) are assembled together, the upper surface of the support member (1600) may come into contact with the lower surface of the bulkhead module (1300), and the inner surface of each hole of the support member (1600) may come into contact with the outer surface of the assembly edge (1330) of the bulkhead module (1300). Here, the lower surface of the assembly edge (1330) of the bulkhead module (1300) may come into contact with the upper surface of the substrate (1100). In some cases, the lower surface of the assembly edge (1330) of the bulkhead module (1300) may be separated from the upper surface of the substrate (1100). In this way, the assembly edge (1330) of the partition module (1300) can improve assembly with the substrate (1100) through the support member (1600) and can block leakage of light emitted from the light source (1200).

[0033] Additionally, as an example, the support member (1600) may include at least one of an adhesive material and an elastic material. Here, the support member (1600) can stably fix the bulkhead module (1300) and allow for simple assembly.

[0034] Next, the bulkhead module (1300) may have at least one assembly mounting groove (1320) formed on the upper surface around the pixel hole (1310), as shown in FIGS. 2 and 3. Here, the number of assembly mounting grooves (1320) may be equal to the number of assembly protrusions (1410) of the optical module (1400).

[0035] Additionally, the vertical depth of the assembly mounting groove (1320) of the bulkhead module (1300) may be equal to or greater than the vertical thickness of the assembly projection (1410) of the optical module (1400). This is to allow the bulkhead module (1300) and the optical module (1400) to be assembled easily, simply, and stably.

[0036] Additionally, the horizontal area of ​​the assembly mounting groove (1320) of the bulkhead module (1300) may be equal to or larger than the horizontal area of ​​the assembly projection (1410) of the optical module (1400). This is to allow the bulkhead module (1300) and the optical module (1400) to be assembled easily, simply, and stably.

[0037] Additionally, when the partition module (1300) and the optical module (1400) are assembled, the inner surface of the pixel hole (1310) of the partition module (1300) may come into contact with the outer surface of the optical module (1400). Here, the shape of the inner surface of the pixel hole (1310) of the partition module (1300) may be the same as the shape of the outer surface of the optical module (1400).

[0038] Next, the optical module (1400) may have an insertion groove formed on the lower surface facing the light source (1200) into which the light source (1200) is inserted. For example, the vertical depth of the insertion groove of the optical module (1400) may be equal to or greater than the vertical height of the light source (1200).

[0039] Additionally, the optical module (1400) may include, as shown in FIGS. 5 and 7, a single assembly projection (1410) formed by protruding in a lateral direction from an upper edge region, and a plurality of diffusion projections (1420) formed by protruding in the direction of the light source from a lower surface facing the light source (1200) and diffusing light emitted from the light source (1200). Here, the diffusion projection (1420) may be formed by vertically overlapping with respect to the light source (1200) on the lower surface of the optical module (1400), or, in some cases, may not be vertically overlapping with respect to the light source (1200). For example, the vertical thickness of the diffusion projection (1420) may be less than or equal to the vertical thickness of the light source (1200).

[0040] In another case, as shown in FIG. 5 and FIG. 7, the partition module (1300) may have at least one assembly mounting groove (1320) formed in the upper peripheral area of ​​each pixel hole (1310), and a light mask (not shown) including at least one assembly hole (not shown) may be formed in the lower area of ​​each pixel hole (1310). Here, the optical module (1400) may have a first assembly projection (1410) formed by protruding in a lateral direction from the upper edge area and a second assembly projection (1420) formed by protruding in the direction of the pixel hole of the partition module (1300) from the lower area, wherein the first assembly projection (1410) of the optical module (1400) is inserted into the assembly seating groove (1320) of the partition module (1300), and the second assembly projection (1420) of the optical module (1400) is inserted into the assembly hole (not shown) of the partition module (1300) so that the optical module (1400) and the pixel hole (1310) of the partition module (1300) can be assembled with each other. The side of the second assembly projection (1420) of the optical module (1400) can contact the inner surface of the assembly hole (not shown) of the bulkhead module (1300), and the lower surface of the optical module (1400), excluding the second assembly projection (1420), can contact the upper surface of the optical mask (not shown).

[0041] Additionally, the first assembly protrusions (1410) of the optical module (1400) may have one, two, three, four, or more than four numbers, and the position of the first assembly protrusions (1410) may be placed in at least one of the corner area and the face area of ​​the upper surface edge of the optical module (1400).

[0042] In another case, the optical module (1400) may not have a first assembly projection (1410) formed by protruding laterally from the upper edge region and an assembly seating groove (1320) of the partition module (1300). The optical module (1400) in which the first assembly projection (1410) and the assembly seating groove (1320) are not formed may be made of an elastic material and may be assembled by being pushed into the pixel hole (1310) of the partition module (1300). Here, the optical module (1400) may be firmly fixed by expanding inside the pixel hole (1310) of the partition module (1300) due to the elastic material.

[0043] In another case, the second assembly projection (1420) formed by protruding in the direction of the pixel hole of the partition module (1300) in the lower area may not be formed.

[0044] Next, the lighting device (1000) may further include a light blocking module (1500) disposed on the upper surface of the partition module (1300), wherein a plurality of holes (1510) corresponding to each pixel hole (1310) of the partition module (1300) are formed as shown in FIGS. 1 and 2. Here, the light blocking module (1500) may be assembled by contacting the upper surface around the pixel hole (1310) of the partition module (1300) to cover the boundary area between the pixel hole (1310) of the partition module (1300) and the optical module (1400). In this way, the light blocking module (1500) can block light leaking through the gap between the partition module (1300) and the optical module (1400). Here, the light blocking module (1500) may have a composition in which a binder resin comprising an alkali-soluble resin and an epoxy resin is mixed with one or more coloring agents selected from carbon black, a mixture of organic black pigment and a color organic pigment, a metal oxide inorganic pigment and a metal nitride inorganic pigment.

[0045] Meanwhile, the substrate (1100) may include 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. For example, if the substrate (1100) is a flexible PCB, the lighting device (1000) may have flexible characteristics.

[0046] Additionally, the substrate (1100) has one or more coupling holes, and the lighting device (1000) can be fastened to a bracket (not shown) through the coupling holes using a fastening means (not shown).

[0047] Additionally, the substrate (1100) may be electrically connected to at least one light source (1200). The substrate (1100) may include a wiring layer on its upper surface, and the wiring layer may be electrically connected to at least one light source (1200). The substrate (1100) may be a single-layer substrate having a single wiring layer or a multi-layer substrate having multiple wiring layers. If the substrate (1100) is a single-layer substrate, the substrate (1100) may have a protective layer on the upper surface of the wiring layer, an insulating layer on the lower surface of the wiring layer, and a metal layer disposed below the insulating layer. For example, the metal layer may serve as a heat dissipation heater. Additionally, if the substrate (1100) is a multi-layer substrate, the substrate (1100) may have a protective layer on the upper surface of the upper wiring layer, an insulating layer on the lower surface of the upper wiring layer, and a layer for lower wiring disposed below the insulating layer, and the layer for lower wiring may be connected to the upper wiring layer through vias. Here, the protective layer of the substrate (1100) can be formed of a solder resistor material or a reflective material as a layer for protecting the wiring layer, and the color of the reflective material can be provided as white.

[0048] Next, the light source (1200) emits the greatest amount of light in the third direction (Z) or the optical axis direction, where the third direction (Z) is a direction orthogonal to the first and second directions (X, Y), which are horizontal directions, and may be a vertical direction toward the optical module (1400) from the substrate (100). The light source (1200) is mounted on the substrate (1100) and may be provided as an LED chip or a package covering the surface of the LED chip with resin. The light source (1200) is a light-emitting device having a light-emitting diode chip (LED Chip), and may include various forms such as a package in which the light-emitting diode chip is packaged, a flip-chip, a CSP (Chip scale package), etc. Here, the light-emitting diode chip can emit at least one of blue, red, green, ultraviolet (UV), or infrared light, and the light source (1200) can emit at least one of white, blue, red, green, or infrared light, and may emit light in a colored light such as white, blue, or green. The thickness (T0) or height of the light source (1200) may be about 0.4 mm or less, or in the range of about 0.25 mm to about 0.4 mm. As an example, the light-emitting element of the light source (1200) may include a light-emitting diode chip, and the light-emitting diode chip may include a mini LED chip or a micro LED chip.

[0049] One or more light sources (1200) may be placed within a single pixel area. Here, when multiple light-emitting elements are placed within the pixel area, the light-emitting elements may emit different colors. For example, multiple light-emitting elements may emit different colors among blue, green, red, yellow, and white. For another example, multiple light-emitting elements may emit the same color among blue, green, red, yellow, and white. Here, blue, green, red, yellow, and white may include wavelength bands of each color or include similar colors.

[0050] Additionally, the light-emitting device may include a light-emitting diode chip and a phosphor layer, and the phosphor layer may be laminated on the surface of the light-emitting diode chip. Here, the phosphor layer may include at least one or more of a yellow phosphor, a red phosphor, a red phosphor, or a green phosphor, and may include a wavelength conversion material such as a quantum dot. Such a light-emitting device may emit blue, green, red, yellow, or white light through the mixing of light generated from the light-emitting diode chip and light wavelength-converted by the phosphor layer.

[0051] Additionally, the light-emitting element may have a light-emitting diode chip mounted on a substrate (100) in a flip-chip manner and may emit light from at least five sides. Here, the at least five sides may include the top surface and four sides of the light-emitting element. In some cases, the light-emitting element may include a top-view type LED package. The present disclosure is not limited thereto, and the light-emitting element may include a side-type type LED package.

[0052] Next, the partition module (1300) is a light-blocking member that covers the outer side of the pixel area where the light source (1200) is placed, and may have a single partition structure, a multiple partition structure, or a double light-blocking structure. Here, the partition module (1300) can block light interference between adjacent light sources (1200) and can block the problem of light penetrating into the pixel area of ​​an adjacent light source (1020).

[0053] Additionally, the partition module (1300) may have a pixel hole (1310) formed in correspondence with a pixel area where a light source (1200) is placed, and the pixel hole (1310) of the partition module (1300) can determine the size of the pixel area. Here, the top-view shape of the pixel hole (1310) of the partition module (1300) may be a polygonal shape, such as a triangular, square, or hexagonal shape. The polygonal shape may include a shape with angular corners or a curved shape. Additionally, the top-view shape of the pixel hole (1310) may be a circular shape or an elliptical shape.

[0054] Next, the partition module (1300) may include a metal material or a resin material. For example, the metal material may be an alloy of at least one or two of aluminum (Al), nickel (Ni), copper (Cu), and silver (Ag), and the resin material may include an epoxy or silicone material. As another example, the partition module (1300) may be selected from materials such as polyimide (PI), polyurethane (PU), polyvinyl chloride (PVC), polypropylene (PP), polyethylene (PE), and polyethylene terephthalate (PET).

[0055] Depending on the case, the bulkhead module (1300) may be formed in a single layer or multiple layers.

[0056] Additionally, the partition module (1300) may include a light reflector or a light absorber within a resin material, wherein the light reflector is Al2O3, TiO2, It may include at least one of SiO2, ZnO, and ZrO2, and the light-absorbing material may include a light-absorbing pigment or dye.

[0057] Additionally, the upper surface width between adjacent pixel holes (1310) in the partition module (1300) may be the minimum distance between adjacent pixel areas, such as 1.1 mm or less, for example, in the range of 0.5 mm to 1.1 mm or in the range of 0.7 mm to 1 mm. Here, if the upper surface width of the partition module (1300) is larger than the above range, the dark area between pixels may be increased, and if it is smaller than the above range, light leakage may occur or there may be difficulties in manufacturing.

[0058] Additionally, the vertical height of the partition module (1300) may be equal to or greater than the vertical thickness of the light source (1200) with respect to the upper surface of the substrate (1100).

[0059] Additionally, the side of the partition (1300) module may have a predetermined angle with respect to the upper surface of the substrate (1100) for light reflection, and the angle may be about 91 degrees or more, for example, in the range of about 91 degrees to about 95 degrees or in the range of about 92 degrees to about 94 degrees. Here, if the angle is greater than the above range, light emitted through the pixel area may propagate onto adjacent pixel areas, and pixel brightness may be reduced, and if the angle is smaller than the above range, light extraction efficiency may be reduced.

[0060] Additionally, within the pixel area defined by the partition module (1300), a transparent resin layer (not shown) that seals the light-emitting element of the light source (1200) may be further formed. Here, the resin layer seals the light-emitting element and is inserted into each pixel hole (1310) of the partition module (1300) to come into contact with the inner surface of the partition module (1300). In some cases, it may also come into contact with the lower surface of the optical module (1400) or have a certain distance from the lower surface of the optical module (1400). The resin layer can protect the light-emitting element from moisture.

[0061] Next, a reflective layer may be disposed between the partition module (1300) and the substrate (1100), and the reflective layer may be an adhesive layer having a reflective material. In some cases, the reflective layer may be disposed on the surface of the partition module (1300), and the reflective layer may be disposed extending to the periphery area of ​​the light-emitting element of the light source (1200) on the upper surface of the substrate (1100) to reflect light incident on the upper surface of the substrate (1100). For example, the reflective layer may be a material such as silicon or epoxy, or a primer material. Additionally, the reflective layer may be attached to the surface of the substrate (1100) and may contain a reflective material inside, for example, the reflective material may be Al2O3, TiO2, It may include at least one of SiO2, ZnO, and ZrO2.

[0062] Furthermore, the optical module (1400) may include a phosphor and perform the function of a fluorescent module. In this case, the assembly process can be simplified as no additional fluorescent material insertion process is required. In some cases, the optical module (1400) may have a concave or convex curved shape on the lower surface facing the light source (1200). In this case, the optical module (1400) can provide pixel lighting with high light uniformity and brightness by simultaneously performing a diffuser function through light diffusion due to the curved shape and a pattern mask function due to the formation of a microhole pattern.

[0063] Additionally, the vertical thickness of the optical module (1400) can be determined based on the vertical height of the partition module (1300), and the maximum thickness of the optical module (1400) can be less than or equal to the maximum vertical height of the partition module (1300). For example, the vertical thickness of the optical module (1400) can have a range of about 1 mm to about 7 mm.

[0064] Additionally, the optical module (1400) may be made of a transparent silicone material. In some cases, the optical module (1400) may include a plurality of beads (not shown) to have a diffuser function. For example, the composition ratio of the beads may be about 1% to 10% of the total composition of the optical module (1400), but this is only one embodiment and is not limited thereto.

[0065] Meanwhile, the lighting device (1000) displays images or information such as symbols, logos, symbols, or characters by means of light sources (1200) each placed within pixel areas, and can be defined as a lighting module or a display lamp. That is, the lighting device (1000) can display images or information such as symbols, logos, symbols, or characters through the display area. In addition, the lighting device (1000) can be implemented as pixel lighting using pixel areas. The lighting device (1000) controls the operation of the light source (1200) within the pixel area through a control unit (not shown) according to the image or information to be displayed, and can display the image or information by the light extracted through the pixel area by the turn-on or turn-off of the light source (1200).

[0066] A light source (1200) placed within a pixel area can be turned on or turned off depending on whether power is supplied. Here, the pixel area can be implemented as a grid type or a unit cell type and can function as a pixel, which is the smallest unit constituting an image or information. That is, the pixel area can be defined as a unit pixel or a unit light-emitting part.

[0067] The top-view shape of the pixel area may be a polygonal shape, such as a square or a triangle, or provided as a circle or an ellipse. The top-view shape of the display area having the pixel areas may be a polygonal shape, such as a triangle or a square, or a circle or an ellipse. The top-view shape of the display area having the pixel areas may have a shape such as a symbol, a logo, a symbol, or a character.

[0068] In this way, the lighting device according to the embodiment can improve assembly efficiency and cost competitiveness by minimizing the manufacturing and assembly processes by manufacturing a partition module and an optical module, in which a plurality of pixel holes aligned with each light source are arranged, by an injection molding method, and assembling the optical modules by inserting each of the pixel holes of the partition module into the partition module using a multi-array assembly method.

[0069] FIGS. 8 to 12 are exemplary drawings showing a lighting device according to another embodiment, showing a lighting device of a 3*3 pixel array including a two-layer bulkhead module.

[0070] As illustrated in FIGS. 8 to 12, the lighting device (2000) may include a substrate (2100), a plurality of light sources (2200) disposed on the substrate (2100), a first partition module (2300) in which a plurality of first pixel holes (2310) aligned with each light source (2200) are disposed, a second partition module (2700) in which a plurality of second pixel holes aligned with each first pixel hole (2310) are disposed, and an optical module (2400) inserted into each of the second pixel holes of the second partition module (2700). Here, the first and second partition modules (2300, 2700) and the optical module (2400) may be manufactured by injection molding and assembled or separated from each other.

[0071] Additionally, the lighting device (2000) may further include a light blocking module (2500) disposed on the upper surface of the second partition module (2700), wherein a plurality of holes (2510) corresponding to the second pixel holes of the second partition module (2700) are formed. Here, the light blocking module (2500) is identical to the embodiment of FIGS. 1 and FIGS. 2, so a detailed description is omitted.

[0072] As shown in FIGS. 9 and 10, a first partition module (2300) may have a plurality of first pixel holes (2310) aligned with each light source (2200) and a first coupling member (2320) arranged therein, and a second partition module (2700) may have a plurality of second pixel holes aligned with each first pixel hole (2310) and a second coupling member (2710) arranged therein. Here, the first partition module (2300) and the second partition module (2700) may be assembled by stacking them together through the fastening of the first coupling member (2320) and the second coupling member (2710). For example, the first coupling member (2320) of the first partition module (2300) may include at least one fastening groove formed around the first pixel hole (2310), and the second coupling member (2710) of the second partition module (2700) may include at least one fastening projection formed around the second pixel hole, wherein the fastening groove and the fastening projection may be arranged facing each other.

[0073] Additionally, the number of fastening grooves formed in the first bulkhead module (2300) may be equal to the number of fastening protrusions formed in the second bulkhead module (2700). Furthermore, the upper surface shape of the fastening grooves formed in the first bulkhead module (2300) may be equal to the upper surface shape of the fastening protrusions formed in the second bulkhead module (2700).

[0074] Additionally, the fastening grooves formed in the first partition module (2300) may be arranged at regular intervals along the circumference of each first pixel hole (2310), and the shape of each fastening groove may have a dot shape or a line shape. Additionally, the fastening protrusions formed in the second partition module (2700) may be arranged at regular intervals along the circumference of each second pixel hole, and the shape of each fastening protrusion may have a dot shape or a line shape.

[0075] In another case, a fastening groove formed in the first partition module (2300) may be arranged along the perimeter of each first pixel hole (2310), and the shape of each fastening groove may have a border shape surrounding the first pixel hole (2310). Also, a fastening projection formed in the second partition module (2700) may be arranged along the perimeter of each second pixel hole, and the shape of each fastening projection may have a border shape surrounding the second pixel hole.

[0076] Meanwhile, the shapes of the fastening grooves and fastening protrusions are not limited to the examples described above and may have various shapes.

[0077] The area of ​​the fastening groove formed in the first bulkhead module (2300) may be equal to or greater than the area of ​​the fastening projection formed in the second bulkhead module (2700). Additionally, the vertical depth of the fastening groove formed in the first bulkhead module (2300) may be equal to or greater than the vertical height of the fastening projection formed in the second bulkhead module (2700).

[0078] As another example, the first coupling member (2320) of the first partition module (2300) may include at least one fastening projection formed around the first pixel hole (2310), and the second coupling member (2710) of the second partition module (2700) may include at least one fastening groove formed around the second pixel hole, wherein the fastening groove and the fastening projection may be arranged in a direction facing each other. Here, the number of fastening projections formed in the first partition module (2300) may be equal to the number of fastening grooves formed in the second partition module (2700). Additionally, the upper surface shape of the fastening projection formed in the first partition module (2300) may be equal to the upper surface shape of the fastening groove formed in the second partition module (2700).

[0079] Additionally, the fastening protrusions formed on the first partition module (2300) are arranged at regular intervals along the circumference of each first pixel hole (2310), and the shape of each fastening protrusion may have a dot shape or a line shape. Additionally, the fastening grooves formed on the second partition module (2700) are arranged at regular intervals along the circumference of each second pixel hole, and the shape of each fastening groove may have a dot shape or a line shape.

[0080] In another case, a fastening projection formed on the first partition module (2300) may be arranged one by one along the perimeter of each first pixel hole, and the shape of each fastening projection may have a border shape surrounding the first pixel hole. Additionally, a fastening groove formed on the second partition module (2700) may be arranged one by one along the perimeter of each second pixel hole, and the shape of each fastening groove may have a border shape surrounding the second pixel hole.

[0081] Meanwhile, the shapes of the fastening grooves and fastening protrusions are not limited to the examples described above and may have various shapes.

[0082] Additionally, the area of ​​the fastening projection formed on the first bulkhead module (2300) may be equal to or smaller than the area of ​​the fastening groove formed on the second bulkhead module (2700). This is to enable the first bulkhead module (2300) and the second bulkhead module (2700) to be assembled easily, simply, and stably.

[0083] Additionally, the vertical depth of the fastening projection formed in the first bulkhead module (2300) may be equal to or smaller than the vertical height of the fastening groove formed in the second bulkhead module (2700). This is to allow the first bulkhead module (2300) and the second bulkhead module (2700) to be assembled easily, simply, and stably.

[0084] Additionally, the first partition module (2300) may have a reflective layer (not shown) including a light source insertion hole formed in the lower region of each first pixel hole (2310). Here, the light source insertion hole is aligned with the light source (2200), and the area of ​​the light source insertion hole may be greater than or equal to the upper area of ​​the light source (2200).

[0085] As shown in FIGS. 10 to 12, the second partition module (2700) may have at least one assembly mounting groove (2720) formed in the upper peripheral area of ​​each second pixel hole, and a pattern mask may be formed in the lower area of ​​each second pixel hole. For example, the pattern mask may include a light mask (2730, 2750) disposed in the lower central area of ​​the second pixel hole, and a plurality of bridges (2732, 2752) disposed in the peripheral area of ​​the light mask (2730, 2750) and connected to the body of the second partition module (2700). Here, the plurality of bridges (2732, 2752) may be arranged at a predetermined interval so that light emitted from a light source (2200) is transmitted into the space (2740) between the bridges (2732, 2752).

[0086] In some cases, as shown in FIG. 12, the light mask (2750) may have at least one through hole (2754) formed therein. For example, the through hole (2754) formed in the light mask (2750) may be positioned so as not to overlap with the light source (2200) in the upper direction (i.e., vertical direction) of the light source (2200). This is to disperse the light emitted from the light source (2200) to provide uniform brightness.

[0087] Meanwhile, the present disclosure is not limited thereto, and the through hole (2754) formed in the light mask (2750) may be arranged to overlap with the light source (2200) in the upper direction (i.e., in the vertical direction) of the light source (2200). However, in this case, the through hole (2754) that overlaps with the light source (2200) in the vertical direction may be smaller in size than the through hole (2754) that does not overlap with the light source (2200) in the vertical direction.

[0088] In another case, as shown in FIGS. 10 to 12, the second partition module (2700) may have at least one assembly mounting groove (2720) formed in the upper peripheral area of ​​each second pixel hole and at least one assembly hole (2740) formed in the lower area of ​​each second pixel hole. Here, the optical module (2400) may have a first assembly projection (2410) formed by protruding in a lateral direction from the upper edge area and a second assembly projection (2420) formed by protruding in the direction of the second pixel hole of the second partition module (2700) from the lower area, wherein the first assembly projection (2410) of the optical module (2400) is inserted into the assembly seating groove (2720) of the second partition module (2700), and the second assembly projection (2420) of the optical module (2400) is inserted into the assembly hole (2740) of the second partition module (2700) so that the optical module (2400) and the second pixel hole of the second partition module (2700) can be assembled with each other.

[0089] The side of the second assembly protrusion (2420) of the optical module (2400) may contact the inner surface of the assembly hole (2740) of the second partition module (2700), and the lower surface of the optical module (2400), excluding the second assembly protrusion (2420), may contact the upper surface of the optical mask (2730, 2750). Here, the number of the first assembly protrusion (2410) of the optical module (2400) may be equal to the number of assembly mounting grooves (2720) of the second partition module (2700). Also, the number of the second assembly protrusion (2420) of the optical module (2400) may be equal to the number of assembly holes (2740) of the second partition module (2700).

[0090] Additionally, the first assembly protrusions (2410) of the optical module (2400) may have one, two, three, four, or more than four numbers, and the position of the first assembly protrusions (2410) may be placed in at least one of the corner area and the face area of ​​the upper surface edge of the optical module (2400).

[0091] In another case, the optical module (2400) may not have a first assembly projection (2410) formed protruding laterally in the upper edge area and an assembly seating groove (2720) of the second partition module (2700), and may not have a second assembly projection (2420) formed protruding in the direction of the second pixel hole of the second partition module (2700) in the lower area.

[0092] An optical module (2400) in which the first assembly protrusion (2410) and the assembly seating groove (2720) are not formed may be made of an elastic material and may be assembled by being pushed into the second pixel hole of the second partition module (2700). Here, the optical module (2400) may expand and be firmly fixed inside the second pixel hole of the second partition module (2700) due to the elastic material.

[0093] In another case, the second assembly projection (2420) formed by protruding in the direction of the second pixel hole of the second bulkhead module (2700) in the lower area may not be formed.

[0094] Additionally, the vertical depth of the assembly mounting groove (2720) of the second bulkhead module (2700) may be equal to or greater than the vertical thickness of the first assembly projection (2410) of the optical module (2400). Furthermore, the vertical thickness of the assembly hole (2740) of the second bulkhead module (2700) may be less than the vertical thickness of the second assembly projection (2420) of the optical module (2400). The reason for this is to enable the second bulkhead module (2700) and the optical module (2400) to be assembled easily, simply, and stably.

[0095] Additionally, the area of ​​the assembly mounting groove (2720) of the second bulkhead module (2700) may be equal to or larger than the area of ​​the first assembly projection (2410) of the optical module (2400). Furthermore, the area of ​​the assembly hole (2740) of the second bulkhead module (2700) may be equal to or larger than the lower area of ​​the second assembly projection (2420) of the optical module (2400). The reason for this is to enable the second bulkhead module (2700) and the optical module (2400) to be assembled easily, simply, and stably.

[0096] Additionally, when the second partition module (2700) and the optical module (2400) are assembled, the inner surface of the second pixel hole of the second partition module (2700) may come into contact with the outer surface of the optical module (2400). Here, the shape of the inner surface of the second pixel hole of the second partition module (2700) may be the same as the shape of the outer surface of the optical module (2400).

[0097] Additionally, the first partition module (2300) may include an assembly edge formed along the periphery of the first pixel hole (2310) on the lower surface facing the substrate (2100). Here, the assembly edge may protrude by a predetermined height in the direction of the substrate (2100).

[0098] Additionally, the lighting device (2000) may further include a support member disposed between the substrate (2100) and the first partition module (2300), wherein a plurality of holes corresponding to each of the first pixel holes (2310) of the first partition module (2300) are formed. Here, the first partition module (2300) may be assembled to the support member by inserting the assembly edge of the first partition module (2300) into the hole of the support member. For example, the area of ​​each hole of the support member may be greater than or equal to the area of ​​each first pixel hole (2310) of the first partition module (2300). For another example, the thickness of the support member may be greater than or equal to the thickness of the assembly edge of the first partition module (2300).

[0099] Additionally, when the support member and the first bulkhead module (2300) are assembled together, the upper surface of the support member may come into contact with the lower surface of the first bulkhead module (2300), and the inner surface of each hole of the support member may come into contact with the outer surface of the assembly edge of the first bulkhead module (2300). Here, the lower surface of the assembly edge of the first bulkhead module (2300) may come into contact with the upper surface of the substrate (2100). In some cases, the lower surface of the assembly edge of the first bulkhead module (2300) may be separated from the upper surface of the substrate (2100).

[0100] In this way, the assembly edge of the first partition module (2300) can improve assembly with the substrate (2100) through the support member and can block leakage of light emitted from the light source (2200).

[0101] Additionally, as an example, the support member may include at least one of an adhesive material and an elastic material. Here, the support member can stably fix the first bulkhead module (2300) and simply assemble it.

[0102] FIGS. 13 to 21 are exemplary drawings showing a lighting device according to another embodiment, showing a lighting device of a 3x3 pixel array including a three-layer bulkhead module.

[0103] As illustrated in FIGS. 13 to 21, the lighting device (3000) may include a substrate (3100), a plurality of light sources (3200) disposed on the substrate (3100), a first partition module (3300) in which a plurality of first pixel holes (3310) aligned with each light source (3200) are disposed, a second partition module (3800) in which a plurality of second pixel holes (3810) aligned with each first pixel hole (3310) are disposed, a third partition module (3700) in which a plurality of third pixel holes (3730) aligned with each second pixel hole (3810) are disposed, and an optical module (3400) each inserted into the third pixel hole (3730) of the third partition module (3700). Here, the first, second, and third bulkhead modules (3300, 3800, 3700) and the optical module (3400) can be manufactured by injection molding and assembled or separated from each other.

[0104] Additionally, the lighting device (3000) may further include a light blocking module (3500) disposed on the upper surface of the third partition module (3700), wherein a plurality of holes (3510) corresponding to the third pixel hole (3730) of the third partition module (3700) are formed. Here, the light blocking module (3500) is identical to the embodiment of FIGS. 1 and FIGS. 2, so a detailed description is omitted.

[0105] As shown in FIGS. 14 to 17, a first partition module (3300) may have a plurality of first pixel holes (3310) aligned with each light source (3200) and a first coupling member (3320) arranged therein, a second partition module (3800) may have a plurality of second pixel holes (3810) aligned with each first pixel hole (3310) and a second coupling member (3820, 3830) arranged therein, and a third partition module (3700) may have a plurality of third pixel holes (3730) aligned with each second pixel hole (3810) and a third coupling member (3710) arranged therein. Here, the first partition module (3300) and the second partition module (3800) can be assembled by stacking together through the connection of the first connecting member (3320) and the second connecting member (3830), and the second partition module (3800) and the third partition module (3700) can be assembled by stacking together through the connection of the second connecting member (3820) and the third connecting member (3710). For example, the first coupling member (3320) of the first partition module (3300) may include at least one fastening groove formed around the upper portion of the first pixel hole (3310), the second coupling member (3830, 3820) of the second partition module (3800) may include at least one fastening projection formed around the lower portion of the second pixel hole (3810) and at least one fastening groove formed around the upper portion of the second pixel hole (3810), and the third coupling member (3710) of the third partition module (3700) may include at least one fastening projection formed around the lower portion of the third pixel hole (3730). At this time, the fastening groove of the first bulkhead module (3300) and the fastening projection of the second bulkhead module (3800) are arranged in a direction facing each other, and the fastening groove of the second bulkhead module (3800) and the fastening projection of the third bulkhead module (3700) can be arranged in a direction facing each other.

[0106] Additionally, the number of fastening grooves formed in the first bulkhead module (3300) may be equal to the number of fastening protrusions formed in the second bulkhead module (3800), and the number of fastening grooves formed in the second bulkhead module (3800) may be equal to the number of fastening protrusions formed in the third bulkhead module (3700).

[0107] Additionally, the upper surface shape of the fastening groove formed in the first bulkhead module (3300) may be identical to the upper surface shape of the fastening projection formed in the second bulkhead module (3800), and the upper surface shape of the fastening groove formed in the second bulkhead module (3800) may be identical to the upper surface shape of the fastening projection formed in the third bulkhead module (3700).

[0108] Additionally, the fastening grooves formed in the first bulkhead module (3300) may be arranged at regular intervals along the upper circumference of each first pixel hole (3310), and the shape of each fastening groove may have a dot shape or a line shape.

[0109] Additionally, the fastening protrusions formed on the second partition module (3800) may be arranged at regular intervals along the lower circumference of each second pixel hole (3810), and the shape of each fastening protrusion may be a dot shape or a line shape. Additionally, the fastening grooves formed on the second partition module (3800) may be arranged at regular intervals along the upper circumference of each second pixel hole (3810), and the shape of each fastening groove may be a dot shape or a line shape. Additionally, the fastening protrusions formed on the third partition module (3700) may be arranged at regular intervals along the lower circumference of each third pixel hole (3730), and the shape of each fastening protrusion may be a dot shape or a line shape.

[0110] In some cases, a fastening groove formed in the first partition module (3300) may be arranged along the perimeter of each first pixel hole (3310), and the shape of each fastening groove may have a border shape surrounding the first pixel hole (3310). Additionally, a fastening projection formed in the second partition module (3800) may be arranged along the lower perimeter of each second pixel hole (3810), and the shape of each fastening projection may have a border shape surrounding the second pixel hole (3810). Additionally, a fastening groove formed in the second partition module (3800) may be arranged along the upper perimeter of each second pixel hole (3810), and the shape of each fastening groove may have a border shape surrounding the second pixel hole (3810).

[0111] Additionally, the area of ​​the fastening groove formed in the first bulkhead module (3300) may be equal to or larger than the area of ​​the fastening projection formed in the second bulkhead module (3800), and the area of ​​the fastening groove formed in the second bulkhead module (3800) may be equal to or larger than the area of ​​the fastening projection formed in the third bulkhead module (3700). The reason for this is to enable the first, second, and third bulkhead modules (3300, 3800, 3700) to be assembled together easily, simply, and stably.

[0112] Additionally, the depth of the fastening groove formed in the first bulkhead module (3300) may be equal to or greater than the height of the fastening projection formed in the second bulkhead module (3800), and the depth of the fastening groove formed in the second bulkhead module (3800) may be equal to or greater than the height of the fastening projection formed in the third bulkhead module (3700). The reason for this is to enable the first, second, and third bulkhead modules (3300, 3800, 3700) to be assembled together easily, simply, and stably.

[0113] As another example, the first coupling member (3320) of the first partition module (3300) may include at least one fastening projection formed around the upper portion of the first pixel hole (3310), the second coupling member (3820, 3830) of the second partition module (3800) may include at least one fastening groove formed around the lower portion of the second pixel hole (3810) and at least one fastening projection formed around the upper portion of the second pixel hole, and the third coupling member (3710) of the third partition module (3700) may include at least one fastening groove formed around the lower portion of the third pixel hole (3730). Here, the fastening projection of the first bulkhead module (3300) and the fastening groove of the second bulkhead module (3800) may be arranged in a direction facing each other, and the fastening projection of the second bulkhead module (3800) and the fastening groove of the third bulkhead module (3700) may be arranged in a direction facing each other.

[0114] Additionally, the number of fastening protrusions formed in the first bulkhead module (3300) may be equal to the number of fastening grooves formed in the second bulkhead module (3800), and the number of fastening protrusions formed in the second bulkhead module (3800) may be equal to the number of fastening grooves formed in the third bulkhead module (3700).

[0115] Additionally, the upper surface shape of the fastening projection formed on the first bulkhead module (3300) may be identical to the upper surface shape of the fastening groove formed on the second bulkhead module (3800), and the upper surface shape of the fastening projection formed on the second bulkhead module (3800) may be identical to the upper surface shape of the fastening groove formed on the third bulkhead module (3700).

[0116] Additionally, a plurality of fastening protrusions formed on the first partition module (3300) may be arranged at regular intervals along the upper circumference of each first pixel hole (3310), and the shape of each fastening protrusion may have a dot shape or a line shape. Additionally, a plurality of fastening grooves formed on the second partition module (3800) may be arranged at regular intervals along the lower circumference of each second pixel hole (3810), and the shape of each fastening groove may have a dot shape or a line shape. Additionally, a plurality of fastening protrusions formed on the second partition module (3800) may be arranged at regular intervals along the upper circumference of each second pixel hole (3810), and the shape of each fastening protrusion may have a dot shape or a line shape. Additionally, the fastening grooves formed in the third bulkhead module (3700) may be arranged at regular intervals along the lower perimeter of each third pixel hole (3730), and the shape of each fastening groove may have a dot shape or a line shape.

[0117] In another embodiment, a fastening projection formed on the first partition module (3300) may be arranged along the perimeter of each first pixel hole (3310), and the shape of each fastening projection may have a border shape surrounding the first pixel hole (3310). Additionally, a fastening groove formed on the second partition module (3800) may be arranged along the lower perimeter of each second pixel hole (3810), and the shape of each fastening groove may have a border shape surrounding the second pixel hole (3810). Additionally, a fastening projection formed on the second partition module (3800) may be arranged along the upper perimeter of each second pixel hole (3810), and the shape of each fastening projection may have a border shape surrounding the second pixel hole (3810).

[0118] Additionally, the area of ​​the fastening projection formed on the first bulkhead module (3300) may be greater than the area of ​​the fastening groove formed on the second bulkhead module (3800), and the area of ​​the fastening projection formed on the second bulkhead module (3810) may be greater than the area of ​​the fastening groove formed on the third bulkhead module (3700). The reason for this is to enable the first, second, and third bulkhead modules (3300, 3800, 3700) to be assembled together easily, simply, and stably.

[0119] Additionally, the height of the fastening projection formed on the first bulkhead module (3300) may be equal to or smaller than the depth of the fastening groove formed on the second bulkhead module (3800), and the height of the fastening projection formed on the second bulkhead module (3800) may be equal to or smaller than the depth of the fastening groove formed on the third bulkhead module (3700). The reason for this is to enable the first, second, and third bulkhead modules (3300, 3800, 3700) to be assembled together easily, simply, and stably.

[0120] Additionally, the first partition module (3300) may have a reflective layer (not shown) including a light source insertion hole formed in the lower region of each first pixel hole (3310). Here, the light source insertion hole is aligned with the light source (3200), and the area of ​​the light source insertion hole may be equal to or larger than the upper area of ​​the light source (3200).

[0121] As shown in FIGS. 16 to 21, a pattern mask may be formed in the lower region of each second pixel hole (3810) of the second partition module (3800). For example, the pattern mask may include a light mask (3850) disposed in the lower central region of the second pixel hole (3810) and a plurality of bridges (3852) disposed in the peripheral region of the light mask (3850) and connected to the body of the second partition module (3800). Here, the plurality of bridges (3852) may be arranged at a predetermined interval so that light emitted from the light source (3200) is transmitted into the space (3840) between the bridges (3852).

[0122] In some cases, as shown in FIGS. 17 to 19, the light mask (3850) may have at least one through hole (3854) formed therein. For example, the through hole formed in the light mask (3850) may be positioned so as not to overlap with the light source (3200) in the upper direction of the light source (3200). This is to disperse the light emitted from the light source (3200) to provide uniform brightness.

[0123] Meanwhile, the present disclosure is not limited thereto, and the through hole (3854) formed in the light mask (3850) may be arranged to overlap with the light source (3200) in the upper direction (i.e., in the vertical direction) of the light source (2200). However, in this case, the through hole (3854) that overlaps with the light source (3200) in the vertical direction may be smaller in size than the through hole (3854) that does not overlap with the light source (3200) in the vertical direction.

[0124] In another case, the pattern mask formed in the second partition module (3800) may have a plurality of pattern holes formed below the second pixel hole (3810). Here, the pattern holes can uniformly diffuse light emitted from the light source (3200) in an upward direction.

[0125] Additionally, the pattern hole density of the pattern mask may be lower in the lower central region of the second pixel hole (3810) than in the lower edge region of the second pixel hole (3810). For example, the pattern hole density of the pattern mask may gradually increase from the lower central region of the second pixel hole (3810) to the lower edge region of the second pixel hole (3810).

[0126] Additionally, the number of pattern holes in the pattern mask may be smaller in the lower central region of the second pixel hole (3810) than in the lower edge region of the second pixel hole (3810). For example, the number of pattern holes in the pattern mask may gradually increase from the lower central region of the second pixel hole (3810) to the lower edge region of the second pixel hole (3810).

[0127] Additionally, the pattern hole size of the pattern mask may be smaller in the lower central region of the second pixel hole (3810) than in the lower edge region of the second pixel hole (3810). For example, the pattern hole size of the pattern mask may gradually increase from the lower central region of the second pixel hole (3810) to the lower edge region of the second pixel hole (3810). This is to disperse the light emitted from the light source (3200) to provide uniform brightness.

[0128] Next, as shown in FIGS. 14 and 17, the third partition module (3700) may have at least one assembly mounting groove (3720) formed in the upper peripheral area of ​​each third pixel hole (3730), and the optical module (3400) may have an assembly projection (3410) formed protruding laterally from the upper edge area. Here, the assembly projection (3410) of the optical module (3400) may be inserted into the assembly mounting groove (3720) of the third partition module (3700) so that the optical module (3400) and the third pixel hole (3730) of the third partition module (3700) can be assembled together.

[0129] Additionally, the number of assembly protrusions (3410) of the optical module (3400) may be the same as the number of assembly mounting grooves (3720) of the third bulkhead module (3700).

[0130] Additionally, the vertical depth of the assembly mounting groove (3720) of the third bulkhead module (3700) may be equal to or greater than the vertical thickness of the assembly projection (3410) of the optical module (3400). This is to enable the third bulkhead module (3700) and the optical module (3400) to be assembled easily, simply, and stably.

[0131] Additionally, the area of ​​the assembly mounting groove (3720) of the third partition module (3700) may be equal to or larger than the area of ​​the first assembly projection (3410) of the optical module (3400). Furthermore, when the third partition module (3700) and the optical module (3400) are assembled, the inner surface of the third pixel hole (3730) of the third partition module (3700) may come into contact with the outer surface of the optical module (3400). Here, the shape of the inner surface of the third pixel hole (3730) of the third partition module (3700) may be the same as the shape of the outer surface of the optical module (3400).

[0132] In another case, the third partition module (3700) may have at least one assembly mounting groove (3720) formed in the upper peripheral area of ​​each third pixel hole (3730), the second partition module (3800) may have at least one assembly hole (3840) formed in the lower area of ​​each second pixel hole (3810), and the optical module (3400) may have a first assembly projection (3410) formed protruding laterally in the upper edge area and a second assembly projection (3420) formed protruding in the direction of the second pixel hole (3810) of the second partition module (3800) in the lower area. Here, the first assembly projection (3410) of the optical module (3400) is inserted into the assembly seating groove (3720) of the third partition module (3400) so that the optical module (3400) and the third pixel hole (3730) of the third partition module (3700) are assembled together, and the second assembly projection (3420) of the optical module (3400) is inserted into the assembly hole (3840) of the second partition module (3800) so that the optical module (3400) and the second pixel hole (3810) of the second partition module (3800) can be assembled together.

[0133] The side of the second assembly projection (3420) of the optical module (3400) can contact the inner surface of the assembly hole (3840) of the second partition module (3800), and the lower surface of the optical module (3400), excluding the second assembly projection (3420), can contact the upper surface of the light mask (3850) of the second partition module (3800).

[0134] Additionally, the number of first assembly protrusions of the optical module (3400) may be the same as the number of assembly seating grooves (3720) of the third bulkhead module (3700), and the number of second assembly protrusions of the optical module (3400) may be the same as the number of assembly holes (3840) of the second bulkhead module (3800).

[0135] Additionally, the first assembly protrusions (3410) of the optical module (3400) may have one, two, three, four, or more than four numbers, and the position of the first assembly protrusions (3410) may be placed in at least one of the corner area and the face area among the upper surface edges of the optical module (3400).

[0136] In another case, the optical module (3400) may not have a first assembly projection (3410) formed by protruding laterally from the upper edge region and an assembly seating groove (3720) of the third partition module (3700) formed in the lower region. The optical module (3400) in which the first assembly projection (3410) and the assembly seating groove (3720) are not formed may be made of an elastic material and may be assembled by being pushed into the third pixel hole of the third partition module (3700) and the second pixel hole of the second partition module (3800). Here, the optical module (2300) may be firmly fixed by expanding inside the third pixel hole of the third partition module (3700) and the second pixel hole of the second partition module (3800) due to the elastic material.

[0137] In another case, the second assembly projection (3420) formed by protruding in the direction of the third pixel hole of the third bulkhead module (3700) in the lower area may not be formed.

[0138] Additionally, the vertical depth of the assembly mounting groove (3720) of the third bulkhead module (3700) may be equal to or greater than the vertical thickness of the first assembly projection of the optical module (3400), and the vertical thickness of the assembly hole (3840) of the second bulkhead module (3800) may be less than the vertical thickness of the second assembly projection of the optical module (3400). The reason for this is to enable the second and third bulkhead modules (3800, 3700) and the optical module (3400) to be assembled easily, simply, and stably.

[0139] Additionally, the area of ​​the assembly mounting groove (3720) of the third bulkhead module (3700) may be equal to or larger than the area of ​​the first assembly protrusion of the optical module (3400), and the area of ​​the assembly hole (3840) of the second bulkhead module (3800) may be equal to or larger than the lower area of ​​the second assembly protrusion of the optical module (3400). The reason for this is to enable the second and third bulkhead modules (3800, 3700) and the optical module (3400) to be assembled easily, simply, and stably.

[0140] Additionally, when assembling the second and third partition modules (3800, 3700) and the optical module (3400), the inner surface of the second pixel hole (3810) of the second partition module (3800) and the inner surface of the third pixel hole (3730) of the third partition module (3700) may come into contact with the outer surface of the optical module (3400). Here, the shape of the inner surface of the second pixel hole (3810) of the second partition module (3800) and the shape of the inner surface of the third pixel hole (3730) of the third partition module (3700) may be identical to the shape of the outer surface of the optical module (3400).

[0141] Additionally, the first partition module (3300) may include an assembly edge formed along the periphery of the first pixel hole (3310) on the lower surface facing the substrate (3100). Here, the assembly edge may protrude by a predetermined height in the direction of the substrate (3100).

[0142] Additionally, the lighting device (3000) may further include a support member disposed between the substrate (3100) and the first partition module (3300), wherein a plurality of holes corresponding to each of the first pixel holes (3310) of the first partition module (3300) are formed. Here, the first partition module (3300) may be assembled to the support member by inserting the assembly edge of the first partition module (3300) into the hole of the support member. For example, the area of ​​each hole of the support member may be greater than or equal to the area of ​​each first pixel hole (3310) of the first partition module (3300). For another example, the thickness of the support member may be greater than or equal to the thickness of the assembly edge of the first partition module (3300).

[0143] Additionally, when the support member and the first bulkhead module (3300) are assembled together, the upper surface of the support member may come into contact with the lower surface of the first bulkhead module (3300), and the inner surface of each hole of the support member may come into contact with the outer surface of the assembly edge of the first bulkhead module (3300). Here, the lower surface of the assembly edge of the first bulkhead module (3300) may come into contact with the upper surface of the substrate (3100).

[0144] In some cases, the lower surface of the assembly edge of the first bulkhead module (3300) may be separated from the upper surface of the substrate (3100).

[0145] In this way, the assembly edge of the first partition module (3300) can improve assembly with the substrate (3100) through the support member and can block leakage of light emitted from the light source (3200).

[0146] Additionally, as an example, the support member may include at least one of an adhesive material and an elastic material. Here, the support member can stably fix the first bulkhead module (3300) and simply assemble it.

[0147] FIGS. 22 to 25 are exemplary drawings showing a lighting device according to another embodiment, showing a lighting device of a 5*5 pixel array including a three-layer bulkhead module.

[0148] As illustrated in FIGS. 22 to 25, the lighting device (4000) may include a substrate (4100), a plurality of light sources disposed on the substrate (4100), a first partition module (4300) in which a plurality of first pixel holes aligned with each light source are disposed, a second partition module (4800) in which a plurality of second pixel holes aligned with each first pixel hole are disposed, a third partition module (4700) in which a plurality of third pixel holes aligned with each second pixel hole are disposed, and an optical module (4400) inserted into each of the third pixel holes of the third partition module (4700). Here, the first, second, and third partition modules (4300, 4800, 4700) and the optical module (4400) may be manufactured by injection molding and assembled or separated from each other.

[0149] A first partition module (4300) may have a plurality of first pixel holes aligned with each light source and a first coupling member (4320) arranged therein, a second partition module (4800) may have a plurality of second pixel holes aligned with each first pixel hole and a second coupling member (4820, 4830) arranged therein, and a third partition module (4700) may have a plurality of third pixel holes aligned with each second pixel hole and a third coupling member (4710) arranged therein. Here, the first partition module (4300) and the second partition module (4800) may be assembled by stacking together through the fastening of the first coupling member (4320) and the second coupling member (4830), and the second partition module (4800) and the third partition module (4700) may be assembled by stacking together through the fastening of the second coupling member (4820) and the third coupling member (4710). For example, the first coupling member (4320) of the first partition module (4300) may include at least one fastening groove formed around the upper portion of the first pixel hole, and the second coupling member (4830, 4820) of the second partition module (4800) may include at least one fastening projection formed around the lower portion of the second pixel hole and at least one fastening groove formed around the upper portion of the second pixel hole, and the third coupling member (4710) of the third partition module (4700) may include at least one fastening projection formed around the lower portion of the third pixel hole. At this time, the fastening groove of the first partition module (4300) and the fastening projection of the second partition module (4800) may be arranged in a direction facing each other, and the fastening groove of the second partition module (4800) and the fastening projection of the third partition module (4700) may be arranged in a direction facing each other.

[0150] Additionally, the number of fastening grooves formed in the first bulkhead module (4300) may be equal to the number of fastening protrusions formed in the second bulkhead module (4800), and the number of fastening grooves formed in the second bulkhead module (4800) may be equal to the number of fastening protrusions formed in the third bulkhead module (4700).

[0151] Additionally, the upper surface shape of the fastening groove formed in the first bulkhead module (4300) may be identical to the upper surface shape of the fastening projection formed in the second bulkhead module (4800), and the upper surface shape of the fastening groove formed in the second bulkhead module (4800) may be identical to the upper surface shape of the fastening projection formed in the third bulkhead module (4700).

[0152] Additionally, the fastening grooves formed in the first partition module (4300) may be arranged at regular intervals along the upper circumference of each first pixel hole, and each fastening groove may have a dot shape. Additionally, the fastening protrusions formed in the second partition module (4800) may be arranged at regular intervals along the lower circumference of each second pixel hole, and each fastening protrusion may have a dot shape. Additionally, the fastening grooves formed in the second partition module (4800) may be arranged at regular intervals along the upper circumference of each second pixel hole, and each fastening groove may have a dot shape. Additionally, the fastening protrusions formed in the third partition module (4700) may be arranged at regular intervals along the lower circumference of each third pixel hole, and each fastening protrusion may have a dot shape.

[0153] Additionally, the area of ​​the fastening groove formed in the first bulkhead module (4300) may be greater than or equal to the area of ​​the fastening projection formed in the second bulkhead module (4800), and the area of ​​the fastening groove formed in the second bulkhead module (4800) may be greater than or equal to the area of ​​the fastening projection formed in the third bulkhead module (4700). The reason for this is to enable the first, second, and third bulkhead modules (4300, 4800, 4700) to be assembled together easily, simply, and stably.

[0154] Additionally, the vertical depth of the fastening groove formed in the first bulkhead module (4300) may be equal to or greater than the vertical height of the fastening projection formed in the second bulkhead module (4800), and the vertical depth of the fastening groove formed in the second bulkhead module (4800) may be equal to or greater than the vertical height of the fastening projection formed in the third bulkhead module (4700). The reason for this is to enable the first, second, and third bulkhead modules (4300, 4800, 4700) to be assembled together easily, simply, and stably.

[0155] As another example, the first coupling member (4320) of the first partition module (4300) may include at least one fastening projection formed around the upper portion of the first pixel hole, and the second coupling member (4820, 4830) of the second partition module (4800) may include at least one fastening groove formed around the lower portion of the second pixel hole and at least one fastening projection formed around the upper portion of the second pixel hole, and the third coupling member (4710) of the third partition module (4700) may include at least one fastening groove formed around the lower portion of the third pixel hole. Here, the fastening projection of the first partition module (4300) and the fastening groove of the second partition module (4800) may be arranged in a direction facing each other, and the fastening projection of the second partition module (4800) and the fastening groove of the third partition module (4700) may be arranged in a direction facing each other.

[0156] Additionally, the number of fastening protrusions formed in the first bulkhead module (4300) may be equal to the number of fastening grooves formed in the second bulkhead module (4800), and the number of fastening protrusions formed in the second bulkhead module (4800) may be equal to the number of fastening grooves formed in the third bulkhead module (4700).

[0157] Additionally, the upper surface shape of the fastening projection formed on the first bulkhead module (4300) may be identical to the upper surface shape of the fastening groove formed on the second bulkhead module (4800), and the upper surface shape of the fastening projection formed on the second bulkhead module (4800) may be identical to the upper surface shape of the fastening groove formed on the third bulkhead module (4700).

[0158] Additionally, the fastening protrusions formed on the first partition module (4300) may be arranged at regular intervals along the upper circumference of each first pixel hole, and each fastening protrusion may have a dot shape. Additionally, the fastening grooves formed on the second partition module (4800) may be arranged at regular intervals along the lower circumference of each second pixel hole, and each fastening groove may have a dot shape. Additionally, the fastening protrusions formed on the second partition module (4800) may be arranged at regular intervals along the upper circumference of each second pixel hole (4810), and each fastening protrusion may have a dot shape. Additionally, the fastening grooves formed on the third partition module (4700) may be arranged at regular intervals along the lower circumference of each third pixel hole, and each fastening groove may have a dot shape.

[0159] Additionally, the area of ​​the fastening projection formed on the first bulkhead module (4300) may be greater than the area of ​​the fastening groove formed on the second bulkhead module (4800), and the area of ​​the fastening projection formed on the second bulkhead module (4810) may be greater than the area of ​​the fastening groove formed on the third bulkhead module (4700). The reason for this is to enable the first, second, and third bulkhead modules (4300, 4800, 4700) to be assembled together easily, simply, and stably.

[0160] Additionally, the height of the fastening projection formed on the first bulkhead module (4300) may be less than or equal to the depth of the fastening groove formed on the second bulkhead module (4800), and the height of the fastening projection formed on the second bulkhead module (4800) may be less than or equal to the depth of the fastening groove formed on the third bulkhead module (4700). The reason for this is to enable the first, second, and third bulkhead modules (4300, 4800, 4700) to be assembled together easily, simply, and stably.

[0161] Additionally, the first partition module (4300) may have a reflective layer (4340) formed therein, which includes a light source insertion hole (4350) in the lower region of each first pixel hole. Here, the light source insertion hole (4350) is aligned with the light source, and the area of ​​the light source insertion hole (4350) may be greater than or equal to the upper area of ​​the light source.

[0162] Additionally, the first partition module (4300) may include an assembly edge formed along the periphery of the first pixel hole on the lower surface facing the substrate (4100). Here, the assembly edge may protrude by a predetermined height in the direction of the substrate (4100).

[0163] Additionally, the lighting device (4000) may further include a support member disposed between the substrate (4100) and the first partition module (4300), wherein a plurality of holes corresponding to each of the first pixel holes of the first partition module (4300) are formed. Here, the first partition module (4300) may be assembled to the support member by inserting the assembly edge of the first partition module (4300) into the hole of the support member. For example, the area of ​​each hole of the support member may be greater than or equal to the area of ​​each first pixel hole of the first partition module (4300). For another example, the thickness of the support member may be greater than or equal to the thickness of the assembly edge of the first partition module (4300).

[0164] Additionally, when the support member and the first bulkhead module (4300) are assembled together, the upper surface of the support member contacts the lower surface of the first bulkhead module (4300), and the inner surface of each hole of the support member contacts the outer surface of the assembly edge of the first bulkhead module (4300). Here, the lower surface of the assembly edge of the first bulkhead module (4300) can contact the upper surface of the substrate (4100).

[0165] In some cases, the lower surface of the assembly edge of the first bulkhead module (4300) may be separated from the upper surface of the substrate (4100).

[0166] In this way, the assembly edge of the first partition module (4300) can improve assembly with the substrate (4100) through the support member and can block leakage of light emitted from the light source.

[0167] Additionally, as an example, the support member may include at least one of an adhesive material and an elastic material. Here, the support member can stably fix the first bulkhead module (4300) and simply assemble it.

[0168] As shown in FIGS. 24 and 25, a pattern mask (4850) may be formed in the lower region of each second pixel hole of the second partition module (4800). Here, the pattern mask (4850) may include a plurality of pattern holes (4840). The pattern holes (4840) can uniformly diffuse light emitted from a light source in an upward direction.

[0169] Next, the lighting device (4000) may further include a light blocking module (4500) disposed on the upper surface of the third partition module (4700), wherein a plurality of holes (4510) corresponding to the third pixel hole of the third partition module (4700) are formed as shown in FIG. 23. Here, the light blocking module (4500) may be assembled by contacting the upper surface around the third pixel hole of the third partition module (4300) to cover the boundary area between the third pixel hole of the third partition module (4700) and the optical module (4400). In this way, the light blocking module (1400) can block light leaking through the gap between the third partition module (4700) and the optical module (4400).

[0170] FIGS. 26 to 33 are exemplary drawings showing a lighting device according to another embodiment, showing a lighting device of a 5*5 pixel array including a three-layer bulkhead module. Since the lighting device illustrated in FIGS. 26 to 33 is identical to the lighting device illustrated in FIGS. 22 to 25 except for the configuration of the fastening member, a detailed description is omitted.

[0171] As illustrated in FIGS. 26 to 33, the lighting device may include a substrate, a plurality of light sources (5200) disposed on the substrate, a first partition module (5300) in which a plurality of first pixel holes aligned with each light source (5200) are disposed, a second partition module (5800) in which a plurality of second pixel holes aligned with each first pixel hole are disposed, a third partition module (5700) in which a plurality of third pixel holes aligned with each second pixel hole are disposed, and an optical module (5400) each inserted into a third pixel hole of the third partition module (5700).

[0172] Additionally, the lighting device may further include a light blocking module (5500) disposed on the upper surface of the third partition module (5700), wherein a plurality of holes corresponding to the third pixel holes of the third partition module (5700) are formed. Here, the first, second, and third partition modules (5300, 5800, 5700) and the optical module (3400) may be manufactured by injection molding and assembled or separated from each other.

[0173] A first partition module (5300) may have a plurality of first pixel holes aligned with each light source (5200) and a first coupling member (5360) arranged therein, a second partition module (5800) may have a plurality of second pixel holes aligned with each first pixel hole and a second coupling member (5860, 5870) arranged therein, and a third partition module (5700) may have a plurality of third pixel holes aligned with each second pixel hole and a third coupling member (5710) arranged therein. Here, the first partition module (5300) and the second partition module (5800) can be assembled by stacking together through the connection of the first connecting member (5360) and the second connecting member (5870), and the second partition module (5800) and the third partition module (5700) can be assembled by stacking together through the connection of the second connecting member (5860) and the third connecting member (5710). For example, the first coupling member (5360) of the first partition module (5300) may include at least one fastening groove formed around the upper portion of the first pixel hole, and the second coupling member (5860, 5870) of the second partition module (5800) may include at least one fastening projection formed around the lower portion of the second pixel hole and at least one fastening groove formed around the upper portion of the second pixel hole, and the third coupling member (5710) of the third partition module (5700) may include at least one fastening projection formed around the lower portion of the third pixel hole. At this time, the fastening groove of the first partition module (5300) and the fastening projection of the second partition module (5800) may be arranged in a direction facing each other, and the fastening groove of the second partition module (5800) and the fastening projection of the third partition module (5700) may be arranged in a direction facing each other.

[0174] Additionally, the fastening grooves formed in the first partition module (5300) may be arranged at regular intervals along the upper circumference of each first pixel hole, and each fastening groove may have a line shape. Additionally, the fastening protrusions formed in the second partition module (5800) may be arranged at regular intervals along the lower circumference of each second pixel hole, and each fastening protrusion may have a line shape. Additionally, the fastening grooves formed in the second partition module (5800) may be arranged at regular intervals along the upper circumference of each second pixel hole, and each fastening groove may have a line shape. Additionally, the fastening protrusions formed in the third partition module (5700) may be arranged at regular intervals along the lower circumference of each third pixel hole, and each fastening protrusion may have a line shape.

[0175] In some cases, a fastening groove formed in the first partition module (5300) may be arranged along the perimeter of each first pixel hole, and the shape of each fastening groove may have a border shape surrounding the first pixel hole. Additionally, a fastening projection formed in the second partition module (5800) may be arranged along the lower perimeter of each second pixel hole, and the shape of each fastening projection may have a border shape surrounding the second pixel hole. Additionally, a fastening groove formed in the second partition module (5800) may be arranged along the upper perimeter of each second pixel hole, and the shape of each fastening groove may have a border shape surrounding the second pixel hole.

[0176] As another example, the first coupling member of the first partition module (5300) may include at least one fastening projection formed around the upper portion of the first pixel hole, the second coupling member of the second partition module (5800) may include at least one fastening groove formed around the lower portion of the second pixel hole and at least one fastening projection formed around the upper portion of the second pixel hole, and the third coupling member of the third partition module (5700) may include at least one fastening groove formed around the lower portion of the third pixel hole. Here, the fastening projection of the first partition module (5300) and the fastening groove of the second partition module (5800) may be arranged in a direction facing each other, and the fastening projection of the second partition module (5800) and the fastening groove of the third partition module (5700) may be arranged in a direction facing each other.

[0177] Additionally, as shown in FIGS. 28 and 29, the first partition module (5300) may have a reflective layer (5340) formed therein, which includes a light source insertion hole (5350) in the lower region of each first pixel hole. Here, the light source insertion hole (5350) is aligned with the light source, and the area of ​​the light source insertion hole (5350) may be greater than or equal to the upper area of ​​the light source.

[0178] As shown in FIGS. 30 and 31, a pattern mask (5850) may be formed in the lower region of each second pixel hole of the second partition module (5800). Here, the pattern mask (5850) may include a plurality of pattern holes (5840). The pattern holes (5840) can uniformly diffuse light emitted from a light source (5200) in an upward direction. For example, the pattern holes (5840) of the pattern mask (5850) may be matched with the space (2740) between bridges (2732) connected to the light mask (2740), as shown in FIG. 11.

[0179] Additionally, the density of the pattern holes (5840) of the pattern mask (5850) may be lower in the lower central region of the second pixel hole than in the lower edge region of the second pixel hole. For example, the density of the pattern holes (5840) of the pattern mask (5850) may gradually increase from the lower central region of the second pixel hole to the lower edge region of the second pixel hole.

[0180] Additionally, the number of pattern holes (5840) of the pattern mask (5850) may be smaller in the lower central area of ​​the second pixel hole than in the lower edge area of ​​the second pixel hole. For example, the number of pattern holes (5840) of the pattern mask (5850) may gradually increase from the lower central area of ​​the second pixel hole to the lower edge area of ​​the second pixel hole.

[0181] Additionally, the size of the pattern hole (5840) of the pattern mask (5850) may be smaller in the lower central area of ​​the second pixel hole than in the lower edge area of ​​the second pixel hole. For example, the size of the pattern hole (5840) of the pattern mask (5850) may gradually increase from the lower central area of ​​the second pixel hole to the lower edge area of ​​the second pixel hole. This is to disperse the light emitted from the light source (5200) to provide uniform brightness.

[0182] In the present disclosure, the lower surface of the partition module may have a pattern mask having pattern holes and a light mask having spaces formed between bridges. Here, the pattern holes of the pattern mask and the spaces between the bridges connected to the light mask can perform the same light dispersion function.

[0183] Additionally, in the present disclosure, a second assembly protrusion may be formed in the lower surface area of ​​the optical module, or the second assembly protrusion may not be formed. For example, if the second assembly protrusion is not formed in the lower surface area of ​​the optical module, the entire lower surface area of ​​the optical module may be disposed on the same plane as the upper surface of the pattern mask of the partition module, or the entire lower surface area of ​​the optical module may be in contact with the upper surface of the pattern mask of the partition module, or the entire lower surface area of ​​the optical module may be spaced apart from the upper surface of the pattern mask of the partition module by a predetermined distance.

[0184] In addition, when a second assembly protrusion is formed in the lower surface area of ​​the optical module, the area of ​​the entire lower surface area of ​​the optical module that does not have the second assembly protrusion may be placed on the same plane as the upper surface of the pattern mask of the partition module, or the area of ​​the entire lower surface area of ​​the optical module that does not have the second assembly protrusion may be in contact with the upper surface of the pattern mask of the partition module, or the area of ​​the entire lower surface area of ​​the optical module that does not have the second assembly protrusion may be spaced apart from the upper surface of the pattern mask of the partition module by a predetermined distance. Here, the second assembly protrusion formed in the lower surface area of ​​the optical module may be inserted into the pattern hole and assembled when a pattern mask having a pattern hole is formed on the lower surface of the partition module, or inserted into the space and assembled when an optical mask having spaces formed between bridges is formed on the lower surface of the partition module, or may be in contact with the upper surface of the pattern mask of the partition module, or may be spaced apart from the upper surface of the pattern mask of the partition module by a predetermined distance.

[0185] FIG. 34 is an exemplary diagram showing the shape of a pattern hole of a pattern mask of a lighting device according to an embodiment, and FIG. 35 is an exemplary diagram showing the arrangement of pattern holes of a pattern mask of a lighting device according to an embodiment.

[0186] As illustrated in FIG. 34, a plurality of pattern holes (7000) may be formed in the pattern mask of the lighting device, and the shape of the pattern holes (7000) may be any polygon including a circle. That is, the shape of the pattern holes (7000) may include polygons including a circle, triangle, square, rhombus, pentagon, hexagon, etc.

[0187] Additionally, as illustrated in FIG. 35, the pattern holes (7000) of the pattern mask may be regularly arranged in all polygons including circles, irregularly randomly arranged in all polygons including circles, or arranged in a mixture of regular and random arrangements. That is, the arrangement of the pattern holes (7000) may include a circular arrangement and a polygonal arrangement including a triangle arrangement, a square arrangement, a rhombus arrangement, a pentagon arrangement, a hexagon arrangement, etc. Here, when arranging the circular and polygonal arrangements, the pattern holes (7000) may be regularly arranged at regular intervals or according to specific rules, arranged irregularly randomly, or arranged in a mixture of regular and random arrangements. At this time, the shape of the pattern holes (7000) may include polygons including circles, triangles, squares, rhombuses, pentagons, hexagons, etc., as shown in FIG. 34.

[0188] FIG. 36 is a plan view of a vehicle with a lighting device applied according to an embodiment, FIG. 37 is a drawing showing an example of a taillight and indicator lamp of the vehicle of FIG. 36, and FIG. 38 is an example showing a symbol or character of an indicator lamp displayed by the lighting device of FIG. 37.

[0189] Referring to FIGS. 36 and 37, the front lamp (2) of a moving body or vehicle (1) may include one or more lighting modules, and by individually controlling the driving timing of these lighting modules, it may provide not only the function of a normal headlight but also additional functions such as a welcome light or a celebration effect when the driver opens the vehicle door. The lamp may be applied as a daytime running light, high beam, low beam, fog light, or turn signal. Also, the taillight (2) of the vehicle (1) may have a plurality of lamp units, and the lamp units may be provided as taillights, brake lights, reverse lights, and turn signal lamps.

[0190] The lighting device (6000) may be positioned on one side or the other side relative to the taillight (2) of the vehicle (1), positioned on the upper or lower side, or installed in a part of the rear of the vehicle. The lighting device (6000) may be installed on the side of the vehicle or inside the vehicle. The lighting device (6000) displays images or information such as symbols, logos, symbols, or characters through a plurality of pixel (111) regions and is provided as a lighting module or a display lamp. That is, as shown in (a) and (b) of FIG. 38, it may be displayed as an exclamation mark such as ! or as a character such as STOP that can be seen by other drivers.

[0191] Such a lighting device (6000) can be assembled with a bulkhead module and an optical module manufactured by injection molding, and can be closely coupled to the surface of a vehicle housing or bracket and covered by a cover lens. That is, the lighting device (6000) may include a plurality of light sources disposed on a substrate, a bulkhead module having a plurality of pixel holes arranged in array with each light source, and an optical module inserted into each pixel hole of the bulkhead module. Here, the bulkhead module has an assembly mounting groove formed on its upper surface around the pixel hole, and the optical module has an assembly protrusion formed around its upper surface so that the assembly protrusion is seated in the assembly mounting groove of the bulkhead module and assembled, or the assembly protrusion can be detached from the assembly mounting groove of the bulkhead module and separated.

[0192] In this way, the lighting device according to the embodiment can improve assembly efficiency and cost competitiveness by minimizing the manufacturing and assembly processes by manufacturing a partition module and an optical module, in which a plurality of pixel holes aligned with each light source are arranged, by an injection molding method, and assembling the optical modules by inserting each of the pixel holes of the partition module into the partition module using a multi-array assembly method.

[0193] In addition, the lighting device may be applied to a headlight or taillight to function as a headlight or taillight, or to display images or information in the headlight or taillight.

[0194] The features, structures, effects, etc. described in the embodiments above are included in at least one embodiment of the present invention and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, etc. exemplified in each embodiment may be combined or modified and implemented in other embodiments by a person skilled in the art to which the embodiments belong. Therefore, details regarding such combinations and modifications should be interpreted as being included within the scope of the present invention.

[0195] Furthermore, although the invention has been described above with reference to embodiments, this is merely illustrative and does not limit the invention. Those skilled in the art will understand that various modifications and applications not exemplified above are possible within the scope of the essential characteristics of the embodiments. For example, each component specifically shown in the embodiments may be modified and implemented. Differences related to such modifications and applications should be interpreted as being included within the scope of the invention as defined in the appended claims.

Claims

1. Substrate; and It includes a partition module in which multiple pixel holes are arranged, and The above bulkhead module is, A lighting device having an assembly mounting groove formed on the upper surface around the pixel hole.

2. In Paragraph 1, A plurality of light sources disposed on the substrate and aligned with each pixel; and A lighting device further comprising optical modules inserted into each pixel hole of the above-mentioned partition module.

3. In Paragraph 2, The above optical module is, A lighting device in which an assembly protrusion is formed around the upper surface, and the assembly protrusion is seated within the assembly seating groove of the bulkhead module to be assembled, or the assembly protrusion is detached from the assembly seating groove of the bulkhead module to be separated.

4. In Paragraph 1, The above bulkhead module is, A first partition module in which a plurality of first pixel holes aligned with each of the above light sources and a first coupling member are disposed; and, It includes a second partition module in which a plurality of second pixel holes aligned with each of the first pixel holes and a second coupling member are disposed, and The first bulkhead module and the second bulkhead module are, A lighting device assembled by stacking together through the connection of the first connecting member and the second connecting member.

5. In Paragraph 4, The first coupling member of the first bulkhead module is, It includes at least one fastening groove formed around the first pixel hole, and The second coupling member of the second bulkhead module above is, It includes at least one fastening projection formed around the second pixel hole, The above fastening groove and fastening projection are, Lighting devices positioned facing each other.

6. In Paragraph 4, The first coupling member of the first bulkhead module is, It includes at least one fastening projection formed around the first pixel hole, and The second coupling member of the second bulkhead module above is, It includes at least one fastening groove formed around the second pixel hole, The above fastening groove and fastening projection are, Lighting devices positioned facing each other.

7. In Paragraph 4, The above second bulkhead module is, At least one assembly seating groove is formed in the upper peripheral area of ​​each of the above second pixel holes, and A lighting device in which a pattern mask is formed in the lower region of each of the above second pixel holes.

8. In Paragraph 1, The above bulkhead module is, A first bulkhead module in which a plurality of first pixel holes and a first coupling member are arranged; A second partition module in which a plurality of second pixel holes aligned with each of the first pixel holes and a second coupling member are disposed; and, It includes a third partition module in which a plurality of third pixel holes aligned with each of the second pixel holes and a third coupling member are disposed, and The first bulkhead module and the second bulkhead module are, The first connecting member and the second connecting member are stacked and assembled together through fastening, The above second bulkhead module and the above third bulkhead module are, A lighting device assembled by stacking together through the connection of the second connecting member and the third connecting member.

9. In Paragraph 8, The above second bulkhead module is, A lighting device in which a pattern mask is formed in the lower region of each of the above second pixel holes.

10. In a display lamp comprising at least one lighting device, At least one lighting device in which a bulkhead module and an optical module are assembled; and, It includes a cover lens that covers the above lighting device, and The above lighting device is, Substrate; and It includes a partition module in which multiple pixel holes are arranged, and The above bulkhead module is, An indicator lamp having an assembly mounting groove formed on the upper surface around the pixel hole.

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