Lighting device and display lamp including the same

Abstract

The present invention relates to a lighting device capable of implementing pixel lighting using a multi-array assembly method and a display lamp including the same. The lighting device according to an embodiment comprises a substrate and a partition module in which a plurality of pixel holes are arranged, wherein the partition module may have an assembly mounting groove formed on its upper surface around the pixel holes. Additionally, the device may further include a plurality of light sources arranged on the substrate and aligned with each pixel, and an optical module inserted into each pixel hole of the partition module. The optical module may have an assembly protrusion formed around its upper surface so that the assembly protrusion is seated within the assembly mounting groove of the partition module for assembly, or the assembly protrusion may be detached from the assembly mounting groove of the partition module for separation.

Description

Technology Field

[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. Background Technology

[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. The problem to be solved

[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 them by inserting each optical module into the pixel holes of the partition module by a multi-array assembly method. means of solving the problem

[0009] A lighting device according to an embodiment of the invention includes 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] According to an embodiment of the invention, it may further include a plurality of light sources disposed on the substrate and aligned with each pixel, and an optical module inserted into each pixel hole of the partition module.

[0011] According to an embodiment of the invention, the optical module has an assembly protrusion formed around its upper surface, so that the assembly protrusion may be seated within the assembly seating groove of the bulkhead module and assembled, or the assembly protrusion may be detached from the assembly seating groove of the bulkhead module and separated.

[0012] According to an embodiment of the invention, the partition module comprises a first partition module in which a plurality of first pixel holes aligned with each light source and a first coupling member are disposed, and 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 partition module and the second partition module can be assembled by stacking together through the fastening of the first coupling member and the second coupling member.

[0013] According to an embodiment of the invention, the first coupling member of the first partition module includes at least one fastening groove formed around the first pixel hole, and the second coupling member of the second partition module includes at least one fastening projection formed around the second pixel hole, and the fastening groove and the fastening projection may be arranged facing each other.

[0014] According to an embodiment of the invention, the first coupling member of the first partition module includes at least one fastening projection formed around the first pixel hole, and the second coupling member of the second partition module includes at least one fastening groove formed around the second pixel hole, and the fastening groove and the fastening projection may be arranged facing each other.

[0015] According to an embodiment of the invention, the first partition module may have a reflective layer including a light source insertion hole formed in the lower region of each first pixel hole.

[0016] According to an embodiment of the invention, the second partition module may have at least one assembly mounting groove formed in the upper peripheral area of ​​each second pixel hole, and a pattern mask formed in the lower area of ​​each second pixel hole.

[0017] According to an embodiment of the invention, the second partition module has at least one assembly mounting groove formed in the upper peripheral area of ​​each second pixel hole and at least one assembly hole formed in the lower area of ​​each second pixel hole; the optical module has a first assembly projection formed protruding in a lateral direction from the upper edge area and a second assembly projection formed protruding in the direction of the second pixel hole of the second partition module from the lower area; the first assembly projection of the optical module is inserted into the assembly mounting groove of the second partition module, and the second assembly projection of the optical module is inserted into the assembly hole of the second partition module so that the optical module and the second pixel hole of the second partition module can be assembled together.

[0018] According to an embodiment of the invention, the partition module comprises a first partition module in which a plurality of first pixel holes aligned with each light source and a first coupling member are disposed, 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 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. The first partition module and the second partition module are assembled by stacking together through the connection of the first coupling member and the second coupling member, and the second partition module and the third partition module can be assembled by stacking together through the connection of the second coupling member and the third coupling member.

[0019] According to an embodiment of the invention, the third partition module has at least one assembly mounting groove formed in the upper peripheral area of ​​each third pixel hole, and the optical module has an assembly projection formed by protruding laterally from the upper edge area, and the assembly projection of the optical module is inserted into the assembly mounting groove of the third partition module so that the optical module and the third pixel hole of the third partition module can be assembled together.

[0020] According to an embodiment of the invention, the third partition module has at least one assembly mounting groove formed in the upper peripheral area of ​​each third pixel hole, the second partition module has at least one assembly hole formed in the lower area of ​​each second pixel hole, and the optical module has a first assembly projection formed protruding in a lateral direction in the upper edge area and a second assembly projection formed protruding in the direction of the second pixel hole of the second partition module in the lower area, the first assembly projection of the optical module is inserted into the assembly mounting groove of the third partition module so that the optical module and the third pixel hole of the third partition module are assembled together, and the second assembly projection of the optical module is inserted into the assembly hole of the second partition module so that the optical module and the second pixel hole of the second partition module can be assembled together.

[0021] A display lamp including at least one lighting device according to an embodiment of the invention comprises at least one lighting device in which a partition module and an optical module are assembled, and a cover lens covering said lighting device, said lighting device comprises a substrate and a partition module in which a plurality of pixel holes are arranged, and said partition module may have an assembly mounting groove formed on an upper surface around said pixel holes. Effects of the invention

[0022] 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. Brief explanation of the drawing

[0023] FIGS. 1 to 7 are exemplary drawings showing a lighting device according to one embodiment. FIGS. 8 to 12 are exemplary drawings showing a lighting device according to another embodiment. FIGS. 13 to 21 are exemplary drawings showing a lighting device according to another embodiment. FIGS. 22 to 25 are exemplary drawings showing a lighting device according to another embodiment. FIGS. 26 to 33 are exemplary drawings showing a lighting device according to another embodiment. FIG. 34 is an example diagram showing the pattern hole shape of a pattern mask of a lighting device according to an embodiment. FIG. 35 is an exemplary diagram showing the pattern hole arrangement of a pattern mask of a lighting device according to an embodiment. FIG. 36 is a plan view of a vehicle equipped with a lighting device according to an embodiment. FIG. 37 is a drawing showing an example of the taillights and indicator lamps of the vehicle of FIG. 36. FIG. 38 is an example illustration showing the symbol or character of the indicator lamp displayed by the lighting device of FIG. 37. Specific details for implementing the invention

[0024] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0025] 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 pertains, unless explicitly and specifically defined otherwise; and terms commonly used, 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] For example, when a 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.

[0030] The lighting device of the present invention is applicable to indoor and outdoor advertising devices, display devices, and various types of electric vehicles. Furthermore, it is applicable to all lighting-related or advertising-related fields that are currently developed and commercialized or that can be implemented through future technological advancements.

[0031] 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 1st layer bulkhead module.

[0032] 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 FIG. 3 to 7 are perspective views showing the partition module and optical module of FIG. 2 in detail.

[0033] 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).

[0034] Here, the bulkhead module (1300) and the optical module (1400) can be manufactured by injection molding and assembled or separated from each other.

[0035] For example, as shown in FIG. 3, the bulkhead module (1300) may have an assembly mounting groove (1320) formed on the upper surface around the pixel hole (1310).

[0036] Additionally, the optical module (1400) may have an assembly protrusion (1410) formed around its upper surface so that the assembly protrusion (1410) is seated within the assembly seating groove (1320) of the bulkhead module (1300) and assembled, or the assembly protrusion (1410) may be detached from the assembly seating groove (1320) of the bulkhead module (1300) and separated.

[0037] 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.

[0038] Here, the assembly rim (1330) can protrude a predetermined length in the vertical direction.

[0039] Additionally, the assembly frame (1330) may have a thickness of a predetermined length in the horizontal direction.

[0040] 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.

[0041] Here, the bulkhead module (1300) can be assembled to the support member (1600) by inserting the assembly edge (1330) of the bulkhead module (1300) into the hole (1610) of the support member (1600).

[0042] For example, one pixel hole (1310) of the bulkhead module (1300) and the corresponding hole (1610) of the support member (1600) can overlap each other in the vertical direction.

[0043] 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 partition module (1300).

[0044] As 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).

[0045] 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).

[0046] Here, the lower surface of the assembly edge (1330) of the bulkhead module (1300) can be in contact with the upper surface of the substrate (1100).

[0047] 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).

[0048] 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).

[0049] In addition, as an example, the support member (1600) may include at least one of an adhesive material and an elastic material.

[0050] Here, the support member (1600) can be simply assembled by stably fixing the bulkhead module (1300).

[0051] Next, the bulkhead module (1300) may have at least one assembly seating groove (1320) formed on the upper surface around the pixel hole (1310), as shown in FIGS. 2 and 3.

[0052] Here, the number of assembly mounting grooves (1320) may be equal to the number of assembly protrusions (1410) of the optical module (1400).

[0053] 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).

[0054] The reason is to enable the bulkhead module (1300) and the optical module (1400) to be assembled easily, simply, and stably.

[0055] 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).

[0056] The reason is to enable the bulkhead module (1300) and the optical module (1400) to be assembled easily, simply, and stably.

[0057] 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).

[0058] Here, the inner surface shape of the pixel hole (1310) of the bulkhead module (1300) may be the same as the outer surface shape of the optical module (1400).

[0059] 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.

[0060] 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).

[0061] Additionally, the optical module (1400) may include, as shown in FIGS. 5 and 7, one assembly projection (1410) formed by protruding in a lateral direction from the upper edge region, and a plurality of diffusion projections (1420) formed by protruding in the direction of the light source from the lower surface facing the light source (1200) and diffusing the light emitted from the light source (1200).

[0062] Here, the diffusion protrusion (1420) may be formed by being vertically superimposed with respect to the light source (1200) on the lower surface of the optical module (1400), and in some cases, may not be vertically superimposed with respect to the light source (1200).

[0063] For example, the vertical thickness of the diffusion protrusion (1420) may be less than or equal to the vertical thickness of the light source (1200).

[0064] 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).

[0065] 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).

[0066] 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).

[0067] In another case, the optical module (1400) may not have a first assembly projection (1410) formed by protruding laterally from the upper edge area and an assembly seating groove (1320) of the partition module (1300).

[0068] An optical module (1400) in which the first assembly protrusion (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).

[0069] Here, the optical module (1400) can be expanded and firmly fixed inside the pixel hole (1310) of the partition module (1300) due to the elastic material.

[0070] 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.

[0071] 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.

[0072] Here, the light blocking module (1500) can 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).

[0073] 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).

[0074] 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.

[0075] 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.

[0076] For example, if the substrate (1100) is a flexible PCB, the lighting device (1000) may have flexible characteristics.

[0077] 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).

[0078] And, the substrate (1100) can be electrically connected to at least one light source (1200).

[0079] The substrate (1100) includes a wiring layer on its upper surface, and the wiring layer can be electrically connected to at least one light source (1200).

[0080] The substrate (1100) may be a single-layer substrate having a single wiring layer or a multi-layer substrate having a plurality of wiring layers.

[0081] When 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 on the lower surface of the insulating layer.

[0082] For example, a layer of metal material can serve as a heat dissipation heater.

[0083] Additionally, if the substrate (1100) is a multilayer 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.

[0084] 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.

[0085] Next, the light source (1200) emits the largest 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).

[0086] The light source (1200) is mounted on the substrate (1100) and can be provided as an LED chip or a package covering the surface of the LED chip with resin.

[0087] 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.

[0088] 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 can emit light in a colored light such as white, blue, or green.

[0089] 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.

[0090] For 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.

[0091] One or more light sources (1200) may be placed within a single pixel area.

[0092] Here, the light source (1200) can emit different colors when multiple light-emitting elements are arranged within a pixel area.

[0093] For example, multiple light-emitting elements can emit different colors among blue, green, red, yellow, and white.

[0094] As another example, multiple light-emitting elements can emit the same color among blue, green, red, yellow, and white.

[0095] Here, blue, green, red, yellow, and white may include wavelength bands of each color or similar colors.

[0096] In addition, the light-emitting element 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.

[0097] 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 also include a wavelength conversion material such as a quantum dot.

[0098] Such light-emitting devices can emit blue, green, red, yellow, or white light through the mixing of light generated from a light-emitting diode chip and light with a wavelength converted by a phosphor layer.

[0099] Additionally, the light-emitting element can have a light-emitting diode chip mounted on a substrate (100) in a flip-chip manner and can emit light on at least five sides.

[0100] Here, at least five surfaces may include the top surface and four sides of the light-emitting element.

[0101] In some cases, the light-emitting element may include a top-view LED package.

[0102] Meanwhile, the present disclosure is not limited thereto, and the light-emitting element may include a side-type LED package.

[0103] 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.

[0104] 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).

[0105] 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.

[0106] Here, the top view shape of the pixel hole (1310) of the bulkhead module (1300) can be a polygonal shape, such as a triangular, square, or hexagonal shape.

[0107] The polygonal shape may include a shape with angular or curved corners.

[0108] Additionally, the top view shape of the pixel hole (1310) may be a circular shape or an elliptical shape.

[0109] Next, the bulkhead module (1300) may include a metal material or a resin material.

[0110] 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 epoxy or silicone material.

[0111] As another example, the bulkhead module (1300) can be selected from materials such as polyimide (PI), polyurethane (PU), polyvinyl chloride (PVC), polypropylene (PP), polyethylene (PE), and polyethylene terephthalate (PET).

[0112] Depending on the case, the bulkhead module (1300) may be formed in a single layer or multiple layers.

[0113] 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.

[0114] 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.

[0115] 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.

[0116] 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).

[0117] Additionally, the side of the bulkhead (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.

[0118] Here, if the angle is larger than the above range, light emitted through the pixel area may propagate onto adjacent pixel areas, causing pixel brightness to decrease, and if the angle is smaller than the above range, light extraction efficiency may decrease.

[0119] 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.

[0120] 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), and in some cases, may also come into contact with the lower surface of the optical module (1400) or may have a certain distance from the lower surface of the optical module (1400).

[0121] The resin layer can protect the light-emitting element from moisture.

[0122] 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.

[0123] 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).

[0124] For example, the reflective layer may be a material such as silicone or epoxy, or a primer material.

[0125] Additionally, the reflective layer is attached to the surface of the substrate (1100) and may include a reflective material inside, for example, the reflective material may be Al2O3, TiO2, It may include at least one of SiO2, ZnO, and ZrO2.

[0126] Additionally, the optical module (1400) may include a fluorescent material and perform the function of a fluorescent module.

[0127] In this case, the assembly process can be simplified because an additional fluorescent material insertion process is not required.

[0128] In some cases, the optical module (1400) may have a concave or convex curved shape on the lower surface facing the light source (1200).

[0129] 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 a curved shape and a pattern mask function due to the formation of a microhole pattern.

[0130] Additionally, the vertical thickness of the optical module (1400) can be determined based on the vertical height of the bulkhead module (1300), and the maximum thickness of the optical module (1400) can be less than or equal to the maximum vertical height of the bulkhead module (1300).

[0131] For example, the vertical thickness of the optical module (1400) can range from about 1 mm to about 7 mm.

[0132] Additionally, the optical module (1400) may be made of a transparent silicon material.

[0133] In some cases, the optical module (1400) may include a plurality of beads (not shown) to have a diffuser function.

[0134] 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 example and is not limited thereto.

[0135] 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.

[0136] That is, the lighting device (1000) can display images or information such as symbols, logos, symbols, or characters through a display area.

[0137] Additionally, the lighting device (1000) can be implemented as pixel lighting using pixel regions.

[0138] The lighting device (1000) controls the operation of a light source (1200) within a 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 turning on or off the light source (1200).

[0139] A light source (1200) placed within a pixel area can be turned on or turned off depending on whether power is supplied.

[0140] 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.

[0141] That is, a pixel area can be defined as a unit pixel or a unit light-emitting part.

[0142] The top-view shape of the pixel area can be a polygonal shape such as a square or a triangle, or can be provided as a circle or an ellipse.

[0143] The top-view shape of the display area having pixel regions may be a polygonal shape such as a triangular shape or a rectangular shape, or a circular shape or an elliptical shape.

[0144] The top-view shape of the display area having pixel regions may have a shape such as a symbol, logo, symbol, or character.

[0145] 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.

[0146] 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.

[0147] 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) each inserted into a second pixel hole of the second partition module (2700).

[0148] Here, the first and second bulkhead modules (2300, 2700) and the optical module (2400) can be manufactured by injection molding and assembled or separated from each other.

[0149] 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.

[0150] Here, the light blocking module (2500) is the same as the embodiment of FIG. 1 and FIG. 2, so a detailed description is omitted.

[0151] 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.

[0152] Here, the first bulkhead module (2300) and the second bulkhead module (2700) can be assembled by stacking them together through the connection of the first connecting member (2320) and the second connecting member (2710).

[0153] 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.

[0154] 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).

[0155] Additionally, the upper surface shape of the fastening groove formed in the first bulkhead module (2300) may be identical to the upper surface shape of the fastening projection formed in the second bulkhead module (2700).

[0156] Additionally, the fastening grooves formed in the first bulkhead 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.

[0157] Additionally, the fastening protrusions formed on 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 be a dot shape or a line shape.

[0158] In another case, a fastening groove formed in the first bulkhead 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).

[0159] Additionally, one fastening projection formed on the second partition module (2700) may be arranged along the circumference of each second pixel hole, and the shape of each fastening projection may have a border shape surrounding the second pixel hole.

[0160] Meanwhile, the shapes of the fastening grooves and fastening protrusions are not limited to the examples described above and may have various shapes.

[0161] Here, the area of ​​the fastening groove formed in the first bulkhead module (2300) may be equal to or larger than the area of ​​the fastening projection formed in the second bulkhead module (2700).

[0162] 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).

[0163] 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 positioned facing each other.

[0164] Here, the number of fastening protrusions formed in the first bulkhead module (2300) may be equal to the number of fastening grooves formed in the second bulkhead module (2700).

[0165] Additionally, the upper surface shape of the fastening projection formed on the first bulkhead module (2300) may be identical to the upper surface shape of the fastening groove formed on the second bulkhead module (2700).

[0166] Additionally, a plurality of 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.

[0167] Additionally, the fastening grooves formed in 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.

[0168] In another case, a fastening projection formed on the first partition module (2300) is arranged along the circumference of each first pixel hole, and the shape of each fastening projection may have a border shape surrounding the first pixel hole.

[0169] Additionally, a fastening groove formed in the second bulkhead module (2700) is arranged 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.

[0170] Meanwhile, the shapes of the fastening grooves and fastening protrusions are not limited to the examples described above and may have various shapes.

[0171] Additionally, the area of ​​the fastening projection formed in the first bulkhead module (2300) may be equal to or smaller than the area of ​​the fastening groove formed in the second bulkhead module (2700).

[0172] The reason is to enable the first bulkhead module (2300) and the second bulkhead module (2700) to be assembled easily, simply, and stably.

[0173] 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).

[0174] The reason is to enable the first bulkhead module (2300) and the second bulkhead module (2700) to be assembled easily, simply, and stably.

[0175] 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).

[0176] 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 the upper area of ​​the light source (2200).

[0177] 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.

[0178] 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).

[0179] Here, a plurality of bridges (2732, 2752) may be arranged at predetermined intervals so that light emitted from a light source (2200) is transmitted into the space (2740) between the bridges (2732, 2752).

[0180] In some cases, as shown in FIG. 12, the light mask (2750) may have at least one through hole (2754) formed therein.

[0181] For example, a 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).

[0182] The reason is to disperse the light emitted from the light source (2200) to provide uniform brightness.

[0183] 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).

[0184] However, in this case, the through hole (2754) that overlaps in the vertical direction with the light source (2200) may be smaller in size than the through hole (2754) that does not overlap in the vertical direction with the light source (2200).

[0185] 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.

[0186] 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.

[0187] The side of the second assembly projection (2420) of the optical module (2400) can come into contact with 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 projection (2420), can come into contact with the upper surface of the optical mask (2730, 2750).

[0188] Here, the number of first assembly protrusions (2410) of the optical module (2400) may be the same as the number of assembly seating grooves (2720) of the second bulkhead module (2700).

[0189] And, the number of second assembly protrusions (2420) of the optical module (2400) may be the same as the number of assembly holes (2740) of the second bulkhead module (2700).

[0190] 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).

[0191] 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.

[0192] 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).

[0193] Here, the optical module (2400) can be expanded and firmly fixed inside the second pixel hole of the second partition module (2700) due to the elastic material.

[0194] 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.

[0195] 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).

[0196] And, 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).

[0197] The reason is to enable the second bulkhead module (2700) and the optical module (2400) to be assembled easily, simply, and stably.

[0198] 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).

[0199] And, 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).

[0200] The reason is to enable the second bulkhead module (2700) and the optical module (2400) to be assembled easily, simply, and stably.

[0201] 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).

[0202] Here, the inner surface shape of the second pixel hole of the second bulkhead module (2700) may be the same as the outer surface shape of the optical module (2400).

[0203] 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).

[0204] Here, the assembly edge can protrude by a predetermined height in the direction of the substrate (2100).

[0205] 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.

[0206] Here, the first bulkhead module (2300) can be assembled to the support member by inserting the assembly edge of the first bulkhead module (2300) into the hole of the support member.

[0207] For example, the area of ​​each hole of the support member may be greater than the area of ​​each first pixel hole (2310) of the first bulkhead module (2300).

[0208] As another example, the thickness of the support member may be greater than the thickness of the assembly edge of the first bulkhead module (2300).

[0209] Additionally, when the support member and the first bulkhead module (2300) are assembled together, the upper surface of the support member contacts the lower surface of the first bulkhead module (2300), and the inner surface of each hole of the support member contacts the outer surface of the assembly edge of the first bulkhead module (2300).

[0210] Here, the lower surface of the assembly edge of the first bulkhead module (2300) can be in contact with the upper surface of the substrate (2100).

[0211] 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).

[0212] 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).

[0213] In addition, as an example, the support member may include at least one of an adhesive material and an elastic material.

[0214] Here, the support member can be simply assembled by stably fixing the first bulkhead module (2300).

[0215] 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.

[0216] 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).

[0217] 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.

[0218] 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 each of the third pixel holes (3730) of the third partition module (3700) are formed.

[0219] Here, the light blocking module (3500) is the same as the embodiment of FIG. 1 and FIG. 2, so a detailed description is omitted.

[0220] 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.

[0221] 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).

[0222] 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).

[0223] 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.

[0224] 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).

[0225] 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).

[0226] 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.

[0227] Additionally, the fastening protrusions formed on the second partition module (3800) may be arranged at regular intervals along the lower perimeter of each second pixel hole (3810), and the shape of each fastening protrusion may have a dot shape or a line shape.

[0228] Additionally, the fastening grooves formed in 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 have a dot shape or a line shape.

[0229] 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 have a dot shape or a line shape.

[0230] In some cases, a fastening groove formed in the first bulkhead 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).

[0231] Additionally, a fastening projection 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 projection may have a border shape surrounding the second pixel hole (3810).

[0232] Additionally, a fastening groove formed in the second bulkhead 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).

[0233] 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).

[0234] The reason is to enable the first, second, and third bulkhead modules (3300, 3800, 3700) to be assembled together easily, simply, and stably.

[0235] 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).

[0236] The reason is to enable the first, second, and third bulkhead modules (3300, 3800, 3700) to be assembled together easily, simply, and stably.

[0237] 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).

[0238] 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.

[0239] 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).

[0240] 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).

[0241] Additionally, the 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 be a dot shape or a line shape.

[0242] Additionally, the fastening grooves formed in the second partition module (3800) may be arranged at regular intervals along the lower perimeter of each second pixel hole (3810), and the shape of each fastening groove may be a dot shape or a line shape.

[0243] Additionally, the 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 be a dot shape or a line shape.

[0244] 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 be a dot shape or a line shape.

[0245] 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).

[0246] Additionally, a fastening groove formed in the second bulkhead 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).

[0247] Additionally, a fastening projection formed on the second partition module (3800) may be arranged along the upper circumference of each second pixel hole (3810), and the shape of each fastening projection may have a border shape surrounding the second pixel hole (3810).

[0248] Additionally, the area of ​​the fastening projection formed in the first bulkhead module (3300) may be greater than the area of ​​the fastening groove formed in the second bulkhead module (3800), and the area of ​​the fastening projection formed in the second bulkhead module (3810) may be greater than the area of ​​the fastening groove formed in the third bulkhead module (3700).

[0249] The reason is to enable the first, second, and third bulkhead modules (3300, 3800, 3700) to be assembled together easily, simply, and stably.

[0250] Additionally, the height of the fastening projection formed in the first bulkhead module (3300) may be equal to or smaller than the depth of the fastening groove formed in the second bulkhead module (3800), and the height of the fastening projection formed in the second bulkhead module (3800) may be equal to or smaller than the depth of the fastening groove formed in the third bulkhead module (3700).

[0251] The reason is to enable the first, second, and third bulkhead modules (3300, 3800, 3700) to be assembled together easily, simply, and stably.

[0252] 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).

[0253] 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).

[0254] As shown in FIGS. 16 to 21, the second partition module (3800) may have a pattern mask formed in the lower region of each second pixel hole (3810).

[0255] For example, the pattern mask may include a light mask (3850) placed in the lower central area of ​​the second pixel hole (3810) and a plurality of bridges (3852) placed in the peripheral area of ​​the light mask (3850) and connected to the body of the second partition module (3800).

[0256] Here, a plurality of bridges (3852) may be arranged at predetermined intervals so that light emitted from a light source (3200) is transmitted into the space (3840) between the bridges (3852).

[0257] In some cases, as shown in FIGS. 17 to 19, the light mask (3850) may have at least one through hole (3854) formed therein.

[0258] For example, a 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).

[0259] The reason is to disperse the light emitted from the light source (3200) to provide uniform brightness.

[0260] 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).

[0261] However, in this case, the through hole (3854) that overlaps in the vertical direction with the light source (3200) may be smaller in size than the through hole (3854) that does not overlap in the vertical direction with the light source (3200).

[0262] 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).

[0263] Here, the pattern holes can uniformly diffuse the light emitted from the light source (3200) in an upward direction.

[0264] 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).

[0265] 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).

[0266] Additionally, the number of pattern holes in the pattern mask may be smaller in the lower central area of ​​the second pixel hole (3810) than in the lower edge area of ​​the second pixel hole (3810).

[0267] For example, the number of pattern holes in the pattern mask may gradually increase from the lower central area of ​​the second pixel hole (3810) to the lower edge area of ​​the second pixel hole (3810).

[0268] Additionally, the pattern hole size of the pattern mask may be such that the lower central area of ​​the second pixel hole (3810) is smaller than the lower edge area of ​​the second pixel hole (3810).

[0269] For example, the pattern hole size of the pattern mask may gradually increase from the lower central area of ​​the second pixel hole (3810) to the lower edge area of ​​the second pixel hole (3810).

[0270] The reason is to disperse the light emitted from the light source (3200) to provide uniform brightness.

[0271] 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.

[0272] Here, the assembly projection (3410) of the optical module (3400) is inserted into the assembly seating 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.

[0273] 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).

[0274] 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).

[0275] The reason is to enable the third bulkhead module (3700) and the optical module (3400) to be assembled easily, simply, and stably.

[0276] 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 projection (3410) of the optical module (3400).

[0277] And, 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).

[0278] Here, the inner surface shape of the third pixel hole (3730) of the third bulkhead module (3700) may be the same as the outer surface shape of the optical module (3400).

[0279] 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.

[0280] 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.

[0281] 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).

[0282] 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).

[0283] 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).

[0284] In another case, the optical module (3400) may not have a first assembly projection (3410) formed protruding laterally in the upper edge area and an assembly seating groove (3720) of the third partition module (3700) formed in the lower area.

[0285] An optical module (3400) in which the first assembly protrusion (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).

[0286] Here, the optical module (2300) can be expanded and firmly fixed 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.

[0287] 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.

[0288] 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).

[0289] The reason is to enable the second and third bulkhead modules (3800, 3700) and the optical module (3400) to be assembled easily, simply, and stably.

[0290] 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 projection 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 projection of the optical module (3400).

[0291] The reason is to enable the second and third bulkhead modules (3800, 3700) and the optical module (3400) to be assembled easily, simply, and stably.

[0292] 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).

[0293] Here, the inner surface shape of the second pixel hole (3810) of the second partition module (3800) and the inner surface shape of the third pixel hole (3730) of the third partition module (3700) may be the same as the outer surface shape of the optical module (3400).

[0294] 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).

[0295] Here, the assembly edge can protrude by a predetermined height in the direction of the substrate (3100).

[0296] 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.

[0297] Here, the first bulkhead module (3300) can be assembled to the support member by inserting the assembly edge of the first bulkhead module (3300) into the hole of the support member.

[0298] For example, the area of ​​each hole of the support member may be greater than the area of ​​each first pixel hole (3310) of the first bulkhead module (3300).

[0299] As another example, the thickness of the support member may be greater than the thickness of the assembly edge of the first bulkhead module (3300).

[0300] Additionally, when the support member and the first bulkhead module (3300) are assembled together, the upper surface of the support member contacts the lower surface of the first bulkhead module (3300), and the inner surface of each hole of the support member contacts the outer surface of the assembly edge of the first bulkhead module (3300).

[0301] Here, the lower surface of the assembly edge of the first bulkhead module (3300) can be in contact with the upper surface of the substrate (3100).

[0302] 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).

[0303] 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).

[0304] In addition, as an example, the support member may include at least one of an adhesive material and an elastic material.

[0305] Here, the support member can be simply assembled by stably fixing the first bulkhead module (3300).

[0306] 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.

[0307] 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) each inserted into a third pixel hole of the third partition module (4700).

[0308] Here, the first, second, and third bulkhead modules (4300, 4800, 4700) and the optical module (4400) can be manufactured by injection molding and assembled or separated from each other.

[0309] 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.

[0310] Here, the first partition module (4300) and the second partition module (4800) can be assembled by stacking together through the connection of the first connecting member (4320) and the second connecting member (4830), and the second partition module (4800) and the third partition module (4700) can be assembled by stacking together through the connection of the second connecting member (4820) and the third connecting member (4710).

[0311] For example, the first coupling member (4320) of the first partition module (4300) may include at least one fastening groove formed around the upper part of the first pixel hole, the second coupling member (4830, 4820) of the second partition module (4800) may include at least one fastening projection formed around the lower part of the second pixel hole and at least one fastening groove formed around the upper part 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 part of the third pixel hole.

[0312] At this time, the fastening groove of the first bulkhead module (4300) and the fastening projection of the second bulkhead module (4800) are arranged in a direction facing each other, and the fastening groove of the second bulkhead module (4800) and the fastening projection of the third bulkhead module (4700) can be arranged in a direction facing each other.

[0313] 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).

[0314] 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).

[0315] Additionally, the fastening grooves formed in the first bulkhead module (4300) may be arranged at regular intervals along the upper circumference of each first pixel hole, and the shape of each fastening groove may have a dot shape.

[0316] Additionally, the fastening protrusions formed on the second partition module (4800) may be arranged at regular intervals along the lower circumference of each second pixel hole, and the shape of each fastening protrusion may have a dot shape.

[0317] 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 the shape of each fastening groove may have a dot shape.

[0318] Additionally, the fastening protrusions formed on the third partition module (4700) may be arranged at regular intervals along the lower circumference of each third pixel hole, and the shape of each fastening protrusion may have a dot shape.

[0319] Additionally, the area of ​​the fastening groove formed in the first bulkhead module (4300) is 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).

[0320] The reason is to enable the first, second, and third bulkhead modules (4300, 4800, 4700) to be assembled together easily, simply, and stably.

[0321] 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).

[0322] The reason is to enable the first, second, and third bulkhead modules (4300, 4800, 4700) to be assembled together easily, simply, and stably.

[0323] 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 part of the first pixel hole, the second coupling member (4820, 4830) of the second partition module (4800) may include at least one fastening groove formed around the lower part of the second pixel hole and at least one fastening projection formed around the upper part 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 part of the third pixel hole.

[0324] Here, the fastening projection of the first bulkhead module (4300) and the fastening groove of the second bulkhead module (4800) may be arranged in a direction facing each other, and the fastening projection of the second bulkhead module (4800) and the fastening groove of the third bulkhead module (4700) may be arranged in a direction facing each other.

[0325] 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).

[0326] 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).

[0327] 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.

[0328] Additionally, the fastening grooves formed in the second partition module (4800) may be arranged at regular intervals along the lower perimeter of each second pixel hole, and each fastening groove may have a dot shape.

[0329] 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.

[0330] Additionally, the fastening grooves formed in the third bulkhead module (4700) may be arranged at regular intervals along the lower circumference of each third pixel hole, and the shape of each fastening groove may have a dot shape.

[0331] Additionally, the area of ​​the fastening projection formed in the first bulkhead module (4300) may be greater than the area of ​​the fastening groove formed in the second bulkhead module (4800), and the area of ​​the fastening projection formed in the second bulkhead module (4810) may be greater than the area of ​​the fastening groove formed in the third bulkhead module (4700).

[0332] The reason is to enable the first, second, and third bulkhead modules (4300, 4800, 4700) to be assembled together easily, simply, and stably.

[0333] Additionally, the height of the fastening projection formed in the first bulkhead module (4300) may be less than or equal to the depth of the fastening groove formed in the second bulkhead module (4800), and the height of the fastening projection formed in the second bulkhead module (4800) may be less than or equal to the depth of the fastening groove formed in the third bulkhead module (4700).

[0334] The reason is to enable the first, second, and third bulkhead modules (4300, 4800, 4700) to be assembled together easily, simply, and stably.

[0335] 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.

[0336] 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 the upper area of ​​the light source.

[0337] 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).

[0338] Here, the assembly edge can protrude by a predetermined height in the direction of the substrate (4100).

[0339] 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.

[0340] Here, the first bulkhead module (4300) can be assembled to the support member by inserting the assembly edge of the first bulkhead module (4300) into the hole of the support member.

[0341] For example, the area of ​​each hole of the support member may be greater than the area of ​​each first pixel hole of the first bulkhead module (4300).

[0342] As another example, the thickness of the support member may be greater than the thickness of the assembly edge of the first bulkhead module (4300).

[0343] 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).

[0344] Here, the lower surface of the assembly edge of the first bulkhead module (4300) can be in contact with the upper surface of the substrate (4100).

[0345] 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).

[0346] 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.

[0347] In addition, as an example, the support member may include at least one of an adhesive material and an elastic material.

[0348] Here, the support member can be simply assembled by stably fixing the first bulkhead module (4300).

[0349] As shown in FIGS. 24 and 25, the second partition module (4800) may have a pattern mask (4850) formed in the lower region of each second pixel hole.

[0350] Here, the pattern mask (4850) may include a plurality of pattern holes (4840).

[0351] The pattern holes (4840) can uniformly diffuse light emitted from a light source in an upward direction.

[0352] 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 holes of the third partition module (4700) are formed as shown in FIG. 23.

[0353] Here, the light blocking module (4500) can 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).

[0354] 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).

[0355] 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.

[0356] 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, so a detailed description is omitted.

[0357] 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).

[0358] 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.

[0359] Here, the first, second, and third bulkhead modules (5300, 5800, 5700) and the optical module (3400) can be manufactured by injection molding and assembled or separated from each other.

[0360] 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.

[0361] 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).

[0362] For example, the first coupling member (5360) of the first partition module (5300) may include at least one fastening groove formed around the upper part of the first pixel hole, the second coupling member (5860, 5870) of the second partition module (5800) may include at least one fastening projection formed around the lower part of the second pixel hole and at least one fastening groove formed around the upper part 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 part of the third pixel hole.

[0363] At this time, the fastening groove of the first bulkhead module (5300) and the fastening projection of the second bulkhead module (5800) are arranged in a direction facing each other, and the fastening groove of the second bulkhead module (5800) and the fastening projection of the third bulkhead module (5700) can be arranged in a direction facing each other.

[0364] Additionally, the fastening grooves formed in the first bulkhead module (5300) may be arranged at regular intervals along the upper circumference of each first pixel hole, and the shape of each fastening groove may have a line shape.

[0365] Additionally, the fastening protrusions formed on the second partition module (5800) may be arranged at regular intervals along the lower circumference of each second pixel hole, and the shape of each fastening protrusion may have a line shape.

[0366] 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 the shape of each fastening groove may have a line shape.

[0367] Additionally, the fastening protrusions formed on the third partition module (5700) may be arranged at regular intervals along the lower circumference of each third pixel hole, and the shape of each fastening protrusion may have a line shape.

[0368] In some cases, a fastening groove formed in the first bulkhead 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.

[0369] Additionally, a fastening projection formed on 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.

[0370] Additionally, a fastening groove formed in the second bulkhead 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.

[0371] 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.

[0372] Here, the fastening projection of the first bulkhead module (5300) and the fastening groove of the second bulkhead module (5800) may be arranged in a direction facing each other, and the fastening projection of the second bulkhead module (5800) and the fastening groove of the third bulkhead module (5700) may be arranged in a direction facing each other.

[0373] 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.

[0374] 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 the upper area of ​​the light source.

[0375] As shown in FIGS. 30 and 31, the second partition module (5800) may have a pattern mask (5850) formed in the lower region of each second pixel hole.

[0376] Here, the pattern mask (5850) may include a plurality of pattern holes (5840).

[0377] The pattern holes (5840) can uniformly diffuse the light emitted from the light source (5200) in an upward direction.

[0378] For example, the pattern hole (5840) of the pattern mask (5850) can be matched with the space (2740) between the bridges (2732) connected to the light mask (2740), as shown in FIG. 11.

[0379] 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.

[0380] 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.

[0381] 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.

[0382] For example, the number of 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.

[0383] Additionally, the size of the pattern hole (5840) of the pattern mask (5850) may be such that the lower central area of ​​the second pixel hole is smaller than the lower edge area of ​​the second pixel hole.

[0384] For example, the size of the pattern hole (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.

[0385] The reason is to disperse the light emitted from the light source (5200) to provide uniform brightness.

[0386] In the present disclosure, the lower surface of the partition module may have a pattern mask having pattern holes formed thereon, and a light mask may be formed in which spaces are formed between the bridges.

[0387] Here, the space between the pattern holes of the pattern mask and the bridges connected to the light mask can perform the same light dispersion function.

[0388] 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.

[0389] For example, if a 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 placed 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.

[0390] Additionally, 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.

[0391] Here, the second assembly protrusion formed in the lower surface area of ​​the optical module can be assembled by being inserted into the pattern hole when a pattern mask having a pattern hole is formed on the lower surface of the partition module, or can be assembled by being inserted into the space when an optical mask having spaces between bridges is formed on the lower surface of the partition module, or can be in contact with the upper surface of the pattern mask of the partition module, or can be spaced apart from the upper surface of the pattern mask of the partition module by a predetermined distance.

[0392] 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.

[0393] As shown 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 circles.

[0394] That is, the shape of the pattern hole (7000) may include a polygon including a circle, triangle, square, rhombus, pentagon, hexagon, etc.

[0395] Additionally, as shown in FIG. 35, the pattern holes (7000) of the pattern mask may be arranged regularly in all polygons including circles, arranged irregularly randomly in all polygons including circles, or arranged in a mixture of regular and random arrangements.

[0396] That is, the arrangement of pattern holes (7000) may include a circular arrangement and a polygonal arrangement including a triangular arrangement, a square arrangement, a rhombus arrangement, a pentagonal arrangement, a hexagonal arrangement, etc.

[0397] Here, the pattern holes (7000) may be arranged regularly according to a set interval or specific rule when arranged in a circular or polygonal arrangement, may be arranged randomly and irregularly, or may be arranged in a mixture of regular and random arrangements.

[0398] At this time, the shape of the pattern hole (7000) may include a polygon including a circle, triangle, square, rhombus, pentagon, hexagon, etc., as shown in FIG. 34.

[0399] 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.

[0400] Referring to FIGS. 36 and 37, the front lamp (2) of the 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.

[0401] The lamps can be applied to daytime running lights, high beams, low beams, fog lights, or turn signals.

[0402] And, the taillight (2) in 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, etc.

[0403] 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.

[0404] The lighting device (6000) can be installed on the side of the vehicle or inside the vehicle.

[0405] This lighting device (6000) displays images or information such as symbols, logos, symbols or characters by means of a plurality of pixel (111) regions and is provided as a lighting module or display lamp.

[0406] That is, as shown in (a) and (b) of Fig. 38, it can be displayed as an exclamation mark such as ! or as a character such as STOP that can be recognized by other drivers.

[0407] This lighting device (6000) can be assembled with a bulkhead module and an optical module made by injection molding, and can be closely coupled to the surface of a housing or bracket of a vehicle and covered by a cover lens.

[0408] That is, the lighting device (6000) may include a plurality of light sources disposed on a substrate, a partition module in which a plurality of pixel holes arranged in array with each light source are disposed, and an optical module inserted into each pixel hole of the partition module.

[0409] Here, the partition 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 within the assembly mounting groove of the partition module and assembled, or the assembly protrusion can be detached from the assembly mounting groove of the partition module and separated.

[0410] 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.

[0411] 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.

[0412] 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.

[0413] 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

Claim 1 A lighting device comprising a substrate; and a partition module in which a plurality of pixel holes are arranged, wherein the partition module has an assembly mounting groove formed on the upper surface around the pixel holes. Claim 2 A lighting device according to claim 1, further comprising: a plurality of light sources disposed on the substrate and aligned with each pixel; and an optical module each inserted into a pixel hole of the partition module. Claim 3 In claim 2, the optical module is a lighting device in which an assembly protrusion is formed around the upper surface and the assembly protrusion is seated in 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. Claim 4 In claim 1, the bulkhead module includes an assembly border formed along the periphery of the pixel hole on the lower surface facing the substrate, and the assembly border is a lighting device protruding by a predetermined height in the direction of the substrate. Claim 5 In claim 4, the lighting device further comprises a support member disposed between the substrate and the partition module, wherein a plurality of holes corresponding to each pixel hole of the partition module are formed, and the partition module is assembled to the support member by inserting the assembly edge of the partition module into the hole of the support member. Claim 6 In claim 1, the partition module comprises: a first partition module in which a plurality of first pixel holes aligned with each light source and a first coupling member are disposed; and 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 partition module and the second partition module are assembled by stacking together through the connection of the first coupling member and the second coupling member. Claim 7 In claim 6, the first coupling member of the first partition module includes at least one fastening groove formed around the first pixel hole, and the second coupling member of the second partition module includes at least one fastening projection formed around the second pixel hole, and the fastening groove and the fastening projection are arranged facing each other. Claim 8 In claim 6, the first coupling member of the first partition module includes at least one fastening projection formed around the first pixel hole, and the second coupling member of the second partition module includes at least one fastening groove formed around the second pixel hole, and the fastening groove and the fastening projection are arranged facing each other. Claim 9 In claim 6, the first partition module is a lighting device in which a reflective layer including a light source insertion hole is formed in the lower region of each first pixel hole. Claim 10 In claim 6, the second partition module is a lighting device in which at least one assembly seating groove is formed in the upper peripheral area of ​​each second pixel hole and a pattern mask is formed in the lower area of ​​each second pixel hole. Claim 11 In claim 10, the pattern mask comprises: a light mask disposed in the lower central region of the second pixel hole; and a plurality of bridges disposed in the peripheral region of the light mask and connected to the body of the second partition module. Claim 12 In claim 6, the second partition module has at least one assembly mounting groove formed in the upper peripheral area of ​​each second pixel hole and at least one assembly hole formed in the lower area of ​​each second pixel hole, and the optical module has a first assembly projection formed protruding in a lateral direction in the upper edge area; and a second assembly projection formed protruding in the direction of the second pixel hole of the second partition module in the lower area, wherein the first assembly projection of the optical module is inserted into the assembly mounting groove of the second partition module and the second assembly projection of the optical module is inserted into the assembly hole of the second partition module so that the optical module and the second pixel hole of the second partition module are assembled together. Claim 13 A lighting device according to claim 1, wherein the partition module comprises: a first partition module in which a plurality of first pixel holes and a first coupling member are disposed; 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 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; wherein the first partition module and the second partition module are assembled by stacking together through the fastening of the first coupling member and the second coupling member, and the second partition module and the third partition module are assembled by stacking together through the fastening of the second coupling member and the third coupling member. Claim 14 In claim 13, the first coupling member of the first partition module includes at least one fastening groove formed around the upper portion of the first pixel hole, the second coupling member of the second partition module includes 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 of the third partition module includes at least one fastening projection formed around the lower portion of the third pixel hole, and the fastening groove of the first partition module and the fastening projection of the second partition module are arranged in a direction facing each other, and the fastening groove of the second partition module and the fastening projection of the third partition module are arranged in a direction facing each other, a lighting device. Claim 15 In claim 13, the first coupling member of the first partition module includes at least one fastening projection formed around the upper portion of the first pixel hole, the second coupling member of the second partition module includes 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 includes at least one fastening groove formed around the lower portion of the third pixel hole, and the fastening projection of the first partition module and the fastening groove of the second partition module are arranged in a direction facing each other, and the fastening projection of the second partition module and the fastening groove of the third partition module are arranged in a direction facing each other. Claim 16 In claim 13, the first partition module is a lighting device in which a reflective layer including a light source insertion hole is formed in the lower region of each first pixel hole. Claim 17 In claim 13, the second partition module is a lighting device in which a pattern mask is formed in the lower region of each second pixel hole. Claim 18 In claim 13, the third partition module has at least one assembly mounting groove formed in the upper peripheral area of ​​each third pixel hole, and the optical module has an assembly projection formed protruding laterally from the upper edge area, and the assembly projection of the optical module is inserted into the assembly mounting groove of the third partition module so that the optical module and the third pixel hole of the third partition module are assembled together. Claim 19 A lighting device according to claim 13, wherein the third partition module has at least one assembly mounting groove formed in the upper peripheral area of ​​each third pixel hole, the second partition module has at least one assembly hole formed in the lower area of ​​each second pixel hole, the optical module has a first assembly projection formed protruding in a lateral direction in the upper edge area; and a second assembly projection formed protruding in the direction of the second pixel hole of the second partition module in the lower area, wherein the first assembly projection of the optical module is inserted into the assembly mounting groove of the third partition module so that the optical module and the third pixel hole of the third partition module are assembled together, and the second assembly projection of the optical module is inserted into the assembly hole of the second partition module so that the optical module and the second pixel hole of the second partition module are assembled together. Claim 20 A display lamp comprising at least one lighting device, wherein at least one lighting device in which a partition module and an optical module are assembled; and a cover lens covering the lighting device, wherein the lighting device comprises a substrate; and a partition module in which a plurality of pixel holes are arranged, and wherein the partition module has an assembly mounting groove formed on an upper surface around the pixel holes.

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