WO2022045713A1 - 조명장치 및 이를 포함하는 램프 - Google Patents

조명장치 및 이를 포함하는 램프 Download PDF

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Publication number
WO2022045713A1
WO2022045713A1 PCT/KR2021/011241 KR2021011241W WO2022045713A1 WO 2022045713 A1 WO2022045713 A1 WO 2022045713A1 KR 2021011241 W KR2021011241 W KR 2021011241W WO 2022045713 A1 WO2022045713 A1 WO 2022045713A1
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WO
WIPO (PCT)
Prior art keywords
pattern
disposed
light
light blocking
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2021/011241
Other languages
English (en)
French (fr)
Korean (ko)
Inventor
최세연
김도엽
나태경
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Innotek Co Ltd
Original Assignee
LG Innotek Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Innotek Co Ltd filed Critical LG Innotek Co Ltd
Priority to JP2023513180A priority Critical patent/JP7823029B2/ja
Priority to CN202180053270.7A priority patent/CN115989440A/zh
Priority to US18/021,947 priority patent/US12486960B2/en
Priority to EP21862010.2A priority patent/EP4206525A4/en
Publication of WO2022045713A1 publication Critical patent/WO2022045713A1/ko
Anticipated expiration legal-status Critical
Priority to US19/370,521 priority patent/US20260049703A1/en
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/22—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
    • F21S4/24—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape of ribbon or tape form, e.g. LED tapes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/15—Strips of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—Attachment of light sources or lamp holders
    • F21S43/195—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/281—Materials thereof; Structures thereof; Properties thereof; Coatings thereof
    • F21S43/28135—Structures encapsulating the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2109/00—Light sources with light-generating elements disposed on transparent or translucent supports or substrates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0065—Manufacturing aspects; Material aspects
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/855—Optical field-shaping means, e.g. lenses
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/855—Optical field-shaping means, e.g. lenses
    • H10H20/856—Reflecting means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/857—Interconnections, e.g. lead-frames, bond wires or solder balls
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/90—Bond pads, in general
    • H10W72/941—Dispositions of bond pads
    • H10W72/944—Dispositions of multiple bond pads
    • H10W72/9445—Top-view layouts, e.g. mirror arrays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W90/00—Package configurations

Definitions

  • the embodiment relates to a lighting device and a lamp including the same.
  • Lighting is a device that can supply light or control the amount of light and is used in various fields.
  • the lighting device may be applied to various fields such as vehicles and buildings to illuminate the interior or exterior.
  • a light emitting device has been used as a light source for lighting.
  • Such a light emitting device for example, a light emitting diode (LED), has advantages such as low power consumption and semi-permanent lifespan compared to conventional light sources such as fluorescent lamps and incandescent lamps, fast response speed, safety, and environmental friendliness.
  • LED light emitting diode
  • These light emitting diodes are being applied to various optical assemblies such as various display devices, indoor lights, or outdoor lights.
  • lamps of various colors and shapes are applied to vehicles, and recently, lamps employing light emitting diodes as light sources for vehicles have been proposed.
  • light emitting diodes are being applied to vehicle headlights, tail lights, turn signals, and the like.
  • a light emitting diode has a problem in that the emission angle of the emitted light is relatively small. For this reason, when the light emitting diode is used as a vehicle lamp, there is a demand for increasing the light emitting area of the lamp.
  • the lamp when the lamp includes the light emitting diode, there is a problem in that the performance of the light emitting diode is deteriorated or the uniformity of emitted light is deteriorated due to heat generated when the light emitting diode emits light.
  • the lamp when the lamp includes the light emitting diode, there is a problem in that a hot spot is formed by the light emitted from the light emitting diode. In this case, when the surface light source is implemented using the lamp, there is a problem in that the uniformity characteristic of the light emitting surface is deteriorated.
  • the light emitting diode when the light emitting diode is applied to a vehicle lamp, there is a problem that the light emitting diode is visually recognized from the outside. For example, when the vehicle lamp is on, it may not be visually recognized by the light emitted from the light source, but when the lamp is off, the light emitting diode is visible from the outside, so that the esthetic and design freedom of the lamp There is a problem in that the characteristics are deteriorated. Accordingly, there is a need for a new lighting device and lamp capable of solving the above problems.
  • An embodiment is to provide a lighting device and a lamp having improved luminous intensity.
  • the embodiment is intended to provide a lighting device and a lamp that can implement a uniform line light source or a surface light source.
  • An embodiment is to provide a lighting device and a lamp having improved heat dissipation characteristics.
  • An embodiment is to provide a lighting device and a lamp having flexibility and improving design freedom and aesthetics.
  • a lighting device includes a reflective layer, a resin layer disposed on the reflective layer, a substrate disposed on the resin layer and including an electrode layer, a plurality of light emitting devices disposed between the resin layer and the substrate, and the substrate a light blocking layer disposed thereon, wherein the electrode layer includes a first pattern area disposed adjacent to the light emitting device and a second pattern disposed outside the first pattern area and having a pattern having a size different from that of the first pattern area region, wherein the light blocking layer includes a plurality of light blocking pattern areas, the light blocking pattern area overlaps the first pattern area in a vertical direction, and has an area greater than an area of the first pattern area.
  • the light blocking pattern region may include a plurality of unit light blocking patterns.
  • An area of the light blocking pattern region may be greater than or equal to 1.4 times that of the first pattern region.
  • the light blocking layer may include an optical film spaced apart from the substrate. A portion of the light blocking pattern area may overlap the second pattern area in a vertical direction.
  • a lighting device includes a transparent substrate, a plurality of light emitting devices disposed on a lower surface of the transparent substrate, a reflective layer disposed to face the light emitting surfaces of the plurality of light emitting devices, and disposed between the transparent substrate and the reflective layer and a light blocking layer disposed on the upper surface of the transparent substrate, wherein the light blocking layer includes a plurality of light blocking pattern areas, and the reflective layer includes a plurality of reflection pattern areas, in a vertical direction, The plurality of light emitting devices may overlap the light blocking pattern area without overlapping the reflective pattern area.
  • a portion of the light blocking pattern area may overlap the reflection pattern area in a vertical direction.
  • the reflective pattern region may include a plurality of unit reflective patterns.
  • the plurality of unit reflection patterns may have a higher density as they move away from the light emitting device.
  • the reflection layer may include a film layer including polyethylene terephthalate (PET) of white color, and the plurality of unit reflection patterns may be disposed on the film layer.
  • PET polyethylene terephthalate
  • the light blocking layer may include a light transmitting region through which the light emitted through the upper surface of the resin layer passes.
  • An area of the light transmitting region may be larger than an area of the plurality of light blocking pattern regions.
  • the light transmitting area may be disposed between the plurality of light blocking pattern areas.
  • a lighting device includes a reflective layer, a first resin layer disposed on the reflective layer, a transparent substrate disposed on the first resin layer, and a plurality of light emitting devices disposed between the first resin layer and the transparent substrate.
  • a device a light blocking layer disposed on the transparent substrate, a second resin layer disposed between the transparent substrate and the light blocking layer, and a half mirror layer disposed on the light blocking layer, wherein the thickness of the first resin layer is thicker than the thickness of the second resin layer, the light blocking layer includes a light blocking pattern region including a plurality of unit light blocking patterns, the plurality of unit light blocking patterns are spaced apart from each other, and a row ⁇ b column (a, b is 2 more than a natural number), and the unit light blocking patterns disposed in two adjacent columns of column b may have the same size.
  • the plurality of unit light blocking patterns may be arranged in a horizontal direction symmetrical with respect to the center of the light blocking pattern region.
  • the size of the unit blocking pattern disposed in column 1 of the column b, which is the furthest from the light emitting device, may be the same as the size of the unit blocking pattern disposed in a column closest to the center of the light blocking pattern region.
  • the plurality of unit light blocking patterns may have the same planar area.
  • a thickness of a region that vertically overlaps with the light emitting device may be thicker than a thickness of a region that does not overlap.
  • the half-mirror layer may have the same color as that of a peripheral area of the lighting device.
  • the plurality of light emitting devices may be spaced apart from each other and arranged in c rows ⁇ d columns (c and d are different natural numbers).
  • the first resin layer may include a major axis and a minor axis, and at least one of the major axis and the minor axis may include a curvature.
  • the lighting device includes a housing having an open top and including an accommodating space therein, and the reflective layer, the first resin layer, the transparent substrate, the light emitting device, the light blocking layer, and the second resin in the accommodating space. layer and the half-mirror layer may be disposed.
  • the lighting device and the lamp according to the embodiment may have improved light characteristics.
  • the lighting device and the lamp can minimize light loss in the process in which light emitted from the light emitting device is emitted to the outside of the lighting device by a substrate having a set thickness, a first resin layer, a second resin layer, etc. there is.
  • the lighting device and the lamp according to the embodiment may be provided in various forms as components have a set thickness.
  • the lighting device may have a straight shape, and at least one of the upper surface, the lower surface, and the side surfaces may be provided in a curved form having a curvature. Accordingly, the lighting device may be provided as a straight line or a curved line on a substrate having various shapes to provide a line light source or a surface light source having uniform luminance.
  • the light emitted from the light emitting device may not be emitted directly, but may be emitted in an indirect light method that is reflected by other internal components. Accordingly, it is possible to prevent the light emitting device from being directly visually recognized from the outside, and it is possible to secure a light guiding distance for uniform luminance.
  • the lighting device and the lamp according to the embodiment may control a hot spot where light emitted from the light emitting device is concentrated by the light blocking layer.
  • the light-blocking layer may include a light-blocking pattern area disposed at a set size and position, and the light-blocking pattern area may include a plurality of unit light-shielding patterns arranged at a set size, shape, and interval. Accordingly, it is possible to prevent the light emitted from the light emitting device from being concentrated by the light blocking pattern region of the light blocking layer. Accordingly, the lighting device and the lamp according to the embodiment may provide a line light source or a surface light source having a uniform luminance of emitted light.
  • the lighting device and the lamp according to the embodiment may have improved heat dissipation characteristics.
  • the lighting device may include an electrode layer disposed in a set pattern, and the electrode layer may effectively dissipate heat emitted from the light emitting device. Accordingly, the lighting device and the lamp according to the embodiment may have improved reliability, and may have uniform characteristics even when driven for a long time.
  • the lighting device and the lamp according to the embodiment may have a color set in a state in which the lighting device is turned off, for example, the same or similar color to the color of the surrounding area of the lighting device and the lamp.
  • the lighting device and the lamp may include a half-mirror layer having a color that is the same as or similar to that of the surrounding area. Accordingly, it is possible to provide a hidden effect that the lighting device is not visible or minimizes the visibility when the device is turned off, and it is possible to have improved esthetics and design freedom.
  • FIG. 1 is a cross-sectional view of a lighting device according to an embodiment.
  • FIG. 2 is a plan view illustrating an electrode layer according to an embodiment.
  • FIG. 3 is an enlarged view of an area A1 of FIG. 1 .
  • FIG. 4 is a plan view of a reflective layer according to an embodiment.
  • FIG. 5 is a cross-sectional view of a light blocking layer according to an embodiment.
  • FIG. 6 is a plan view of a light blocking layer according to an embodiment.
  • FIG 7 and 8 are other plan views of the light blocking layer according to the embodiment.
  • FIG. 9 is a cross-sectional view of a lighting device according to an embodiment including a half mirror layer.
  • FIG. 10 is another cross-sectional view of a half mirror layer according to an embodiment.
  • 11 and 12 are views illustrating that the lighting device according to the embodiment has a shape bent in various directions.
  • FIG. 13 and 14 are cross-sectional views of a lighting device according to an embodiment including a housing.
  • 15 to 19 are views illustrating examples in which a lamp including a lighting device according to an embodiment is applied to a vehicle.
  • the terminology used in the embodiments of the present invention is for describing the embodiments and is not intended to limit the present invention.
  • the singular form may also include the plural form unless otherwise specified in the phrase, and when it is described as "at least one (or one or more) of A and (and) B, C", it is combined with A, B, C It can contain one or more of all possible combinations.
  • terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only used to distinguish the component from other components, and the essence, order, or order of the component is not determined by the term.
  • a component when it is described that a component is 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also with the component It may also include a case of 'connected', 'coupled' or 'connected' due to another element between the other elements.
  • the top (above) or bottom (below) when it is described as being formed or disposed on “above (above) or below (below)" of each component, the top (above) or bottom (below) is one as well as when two components are in direct contact with each other.
  • another component as described above is formed or disposed between two components.
  • upper (upper) or lower (lower) when expressed as "upper (upper) or lower (lower)", a meaning of not only an upper direction but also a lower direction based on one component may be included.
  • the lighting device according to the present invention can be applied to various lamp devices that require lighting, such as a vehicle lamp, a home optical assembly, and an industrial optical assembly.
  • a vehicle lamp a head lamp, a side mirror lamp, a side maker light, a fog lamp, a tail lamp, a brake lamp, a daytime running lamp, a vehicle interior lighting, a door scar, the rear Applicable to combination lamps, backup lamps, etc.
  • a vehicle lamp it is applicable to a rear side assist system (BSD) disposed on a side mirror or an a-pillar.
  • BSD rear side assist system
  • the optical assembly of the present invention can be applied to indoor and outdoor advertising devices, display devices, and various electric vehicle fields. would be applicable.
  • the first direction may mean the x-axis direction shown in the drawings
  • the second direction may mean the y-axis direction shown in the drawings
  • the third direction is shown in the drawings. It may mean the illustrated z-axis direction.
  • the horizontal direction may mean first and second directions
  • the vertical direction may mean a third direction in a direction perpendicular to at least one of the first and second directions.
  • the horizontal direction may mean the x-axis and y-axis directions of the drawing
  • the vertical direction may be a z-axis direction of the drawing and a direction perpendicular to the x-axis and y-axis directions.
  • FIG. 1 is a cross-sectional view of a lighting device according to an embodiment
  • FIG. 2 is a plan view showing an electrode layer according to the embodiment.
  • FIG. 3 is an enlarged view of an area A1 of FIG. 1
  • FIG. 4 is a plan view of the reflective layer according to the embodiment.
  • 5 is a cross-sectional view of the light blocking layer according to the embodiment
  • FIG. 6 is a plan view of the light blocking layer according to the embodiment.
  • the lighting device 1000 includes a substrate 100 , a light emitting device 200 , a reflective layer 300 , a first resin layer 410 , and a second resin layer 420 . and a light blocking layer 500 .
  • the lighting device 1000 may emit the light emitted from the light emitting device 200 as a surface light source.
  • the lighting device 1000 may be defined as a light emitting cell, a lighting module, or a light source module.
  • the lighting device 1000 may include one light emitting cell or a plurality of light emitting cells on the substrate 100 .
  • the substrate 100 may include a light-transmitting material.
  • the substrate 100 may include a material through which light is transmitted through the upper and lower surfaces.
  • the substrate 100 may be a transparent substrate.
  • the substrate 100 may include at least one of polyethylene terephthalate (PET), polystyrene (PS), polyimide (PI), polyethylene naphthalate (PEN), and poly carbonate (PC).
  • PET polyethylene terephthalate
  • PS polystyrene
  • PI polyimide
  • PEN polyethylene naphthalate
  • PC poly carbonate
  • the substrate 100 may have a thickness of about 30 ⁇ m to about 300 ⁇ m. When the substrate 100 has a thickness of less than about 30 ⁇ m, it may be difficult to effectively support a configuration disposed on the substrate 100 , for example, the light emitting device 200 , and the weight of the light emitting device 200 may vary.
  • the thickness of the substrate 100 exceeds about 300 ⁇ m
  • the overall thickness of the lighting device 1000 may increase, and the flexibility of the substrate 100 may decrease.
  • the thickness of the substrate 100 exceeds about 300 ⁇ m, the path of light emitted by the thickness of the substrate 100 may change, and thus, it may be difficult to implement a uniform surface light source.
  • Electrode layers 110 and 120 may be disposed on the substrate 100 .
  • the electrode layers 110 and 120 may be disposed on the lower surface of the substrate 100 .
  • the electrode layers 110 and 120 may be disposed on the lower surface of the substrate 100 facing the first resin layer 410 .
  • the electrode layers 110 and 120 may include a first electrode 110 and a second electrode 120 .
  • the first electrode 110 and the second electrode 120 may be spaced apart from each other on the lower surface of the substrate 100 .
  • the first electrode 110 and the second electrode 120 may be spaced apart from each other in a first direction with respect to the light emitting device 200 . Accordingly, the first electrode 110 and the second electrode 120 may be electrically isolated from each other.
  • the first electrode 110 and the second electrode 120 may include a conductive material.
  • the first electrode 110 and the second electrode 120 may include aluminum (Al), copper (Cu), silver (Ag), gold (Au), chromium (Cr), nickel (Ni), and molybdenum. (Mo), titanium (Ti) and alloys thereof, carbon, and may include at least one of a conductive polymer.
  • the first electrode 110 and the second electrode 120 may be formed of a transparent conductive material such as indium tin oxide (ITO), indium zinc oxide (IZO), indium zinc tin oxide (IZTO), or indium aluminum zinc (IAZO).
  • the first electrode 110 and the second electrode 120 may provide a current to the light emitting device 200 .
  • the first electrode 110 may provide a current having a first polarity to the light emitting device 200
  • the second electrode 120 may provide the light emitting device 200 with the first polarity.
  • a current of a second polarity opposite to that may be provided.
  • the first electrode 110 may include a first pad 111 and a first electrode pattern 112 .
  • the first pad 111 may be disposed in a region corresponding to the light emitting device 200 .
  • the first pad 111 may be disposed in a region corresponding to the first bonding portion (not shown) of the light emitting device 200 .
  • the first electrode pattern 112 may be disposed around the first pad 111 .
  • the first electrode pattern 112 may be connected to the first pad 111 .
  • the first electrode pattern 112 may be electrically connected to the first bonding portion of the light emitting device 200 .
  • the first electrode pattern 112 may include a plurality of first sub-wirings 1121 and a plurality of second sub-wirings 1122 extending in different directions.
  • the plurality of first sub-wirings 1121 may extend in a first direction. Also, the plurality of first sub-wirings 1121 may be spaced apart from each other in a second direction perpendicular to the first direction. Also, the plurality of second sub-wirings 1122 may extend in a second direction. Also, the plurality of second sub-wirings 1122 may be spaced apart from each other in the first direction.
  • the first electrode pattern 112 may have a mesh shape in which the first sub-wiring 1121 and the second sub-wiring 1122 cross each other.
  • the first electrode pattern 112 may have a set line width. For example, the line width of the first electrode pattern 112 may be about 80 ⁇ m or less.
  • the line width of the first electrode pattern 112 may be about 60 ⁇ m or less. In more detail, the line width of the first electrode pattern 112 may be about 35 ⁇ m or less.
  • Line widths of the plurality of first sub-wirings 1121 may be the same within the aforementioned line width range.
  • the line widths of the plurality of second sub-wirings 1122 may be the same within the aforementioned line width range. Also, the line widths of the first sub-wiring 1121 and the second sub-wiring 1122 may be the same.
  • the second electrode 120 may include a second pad 121 and a second electrode pattern 122 .
  • the second pad 121 may be spaced apart from the first pad 111 and the first electrode pattern 112 and may be disposed in a region corresponding to the light emitting device 200 .
  • the second pad 121 may be disposed in a region corresponding to the second bonding portion (not shown) of the light emitting device 200 .
  • the second electrode pattern 122 may be disposed around the second pad 121 .
  • the second electrode pattern 122 may be spaced apart from the first pad 111 and the first electrode pattern 112 , and may be connected to the second pad 121 .
  • the second electrode pattern 122 may be electrically connected to the second bonding portion of the light emitting device 200 .
  • the second electrode pattern 122 may include a plurality of third sub-wirings 1221 and a plurality of fourth sub-wirings 1222 extending in different directions.
  • the plurality of third sub-wirings 1221 may extend in a first direction.
  • the plurality of third sub-wirings 1221 may be spaced apart from each other in a second direction perpendicular to the first direction.
  • the plurality of fourth sub-wirings 1222 may extend in the second direction.
  • the plurality of fourth sub-wirings 1222 may be spaced apart from each other in the first direction.
  • the second electrode pattern 122 may have a mesh shape in which the third sub-wiring 1221 and the fourth sub-wiring 1222 cross each other.
  • the second electrode pattern 122 may have a set line width.
  • the second electrode pattern 122 may have the same line width as that of the first electrode pattern 112 .
  • the line width of the second electrode pattern 122 may be about 80 ⁇ m or less.
  • the line width of the second electrode pattern 122 may be about 60 ⁇ m or less.
  • the line width of the second electrode pattern 122 may be about 35 ⁇ m or less.
  • Line widths of the plurality of third sub-wirings 1221 may be equal to each other within the above-described range.
  • Line widths of the plurality of fourth sub-wirings 1222 may be the same within the above-described range.
  • the line widths of the third sub-wiring 1221 and the fourth sub-wiring 1222 may be the same.
  • Line widths of the first to fourth sub-wirings 1222 may be the same.
  • the electrode layers 110 and 120 may include a plurality of pattern regions.
  • each of the first electrode 110 and the second electrode 120 may include a first pattern region P1 and a second pattern region P2 .
  • the first pattern region P1 and the second pattern region P2 may have the same line width.
  • the first pattern region P1 may include a 1-1 pattern region P1a of the first electrode 110 and a 1-2 pattern region P1b of the second electrode 120 .
  • the 1-1 pattern region P1a may be a region disposed adjacent to the light emitting device 200 .
  • the first-first pattern region P1a is a region formed by the intersection of the first sub-wiring 1121 and the second sub-wiring 1122 , and may be disposed around the first pad 111 .
  • the 1-1 pattern region P1a may be physically and electrically connected to the first pad 111 .
  • the 1-1 pattern region P1a may be electrically connected to the first bonding portion of the light emitting device 200 .
  • the 1-2-th pattern region P1b may be a region disposed adjacent to the light emitting device 200 .
  • the 1-2 th pattern region P1b may be spaced apart from the 1-1 pattern region P1a.
  • the 1-2-th pattern region P1b is a region formed by the intersection of the third sub-wiring 1221 and the fourth sub-wiring 1222 , and may be disposed around the second pad 121 .
  • the 1-2 th pattern region P1b may be physically and electrically connected to the second pad 121 .
  • the 1-2 th pattern region P1b may be electrically connected to the second bonding portion of the light emitting device 200 .
  • Each of the 1-1 pattern region P1a and the 1-2 pattern region P1b may include a plurality of first unit patterns having a first opening region O1 .
  • the first unit pattern of the 1-1 pattern region P1a may have the same shape as the first unit pattern of the 1-2 th pattern region P1b.
  • the first unit pattern of the 1-1 pattern region P1a may have the same size as the first unit pattern of the 1-2 pattern region P1b. That is, the first opening region O1 of the 1-1 pattern region P1a may have the same shape and size as the first opening region O1 of the 1-2 pattern region P1b.
  • the first unit pattern may have a mesh shape.
  • the first unit pattern of each of the 1-1 pattern area P1a and the 1-2 pattern area P1b may have a set horizontal width a1 and a vertical width a2.
  • each of the horizontal width a1 and the vertical width a2 of the first unit pattern may be about 250 ⁇ m or less.
  • Each of the horizontal width a1 and the vertical width a2 of the first unit pattern may be about 200 ⁇ m or less.
  • the horizontal width a1 and the vertical width a2 of the first unit pattern may be the same. That is, the first unit pattern of the 1-1 pattern area P1a and the 1-2 pattern area P1b may have a square shape.
  • the 1-1 pattern region P1a may be disposed symmetrically with the 1-2 th pattern region P1b.
  • the 1-1 pattern region P1a and the 1-2 pattern region P1b may be symmetric with respect to the light emitting device 200 . That is, the number of the first opening regions O1 included in the 1-1 pattern region P1a is equal to the number of the first opening regions O1 included in the 1-2 pattern region P1b. can be the same.
  • an area occupied by the 1-1 pattern region P1a with respect to the light emitting device 200 may be the same as an area occupied by the 1-2 th pattern region P1b.
  • the second pattern area P2 may be disposed outside the first pattern area P1 .
  • the second pattern region P2 may include a 2-1 pattern region P2a of the first electrode 110 and a 2-2 pattern region P2b of the second electrode 120 .
  • the 2-1 pattern region P2a may be a region spaced apart from the light emitting device 200 .
  • the 2-1-th pattern area P2a is an area formed by the intersection of the first sub-wiring 1121 and the second sub-wiring 1122 and is to be disposed around the 1-1 pattern area P1a. can
  • the 2-1 th pattern region P2a may be physically and electrically connected to the 1-1 th pattern region P1a.
  • the 2-1 pattern region P2a may be electrically connected to the first bonding portion of the light emitting device 200 .
  • the second-second pattern region P2b may be a region spaced apart from the light emitting device 200 .
  • the second-second pattern area P2b may be spaced apart from the second-first pattern area P2a.
  • the 2-2 pattern region P2b is a region formed by the intersection of the third sub wiring 1221 and the fourth sub wiring 1222 and is to be disposed around the 1-2 pattern region P1b. can
  • the second-second pattern region P2b may be physically and electrically connected to the first-second pattern region P1b.
  • the second-second pattern region P2b may be electrically connected to the second bonding portion of the light emitting device 200 .
  • Each of the 2-1 pattern area P2a and the 2-2 pattern area P2b may include a plurality of second unit patterns having a second opening area O2 .
  • the second unit pattern of the second-first pattern area P2a may have the same shape as the second unit pattern of the second-second pattern area P2b.
  • the second unit pattern of the second-first pattern area P2a may have the same size as the second unit pattern of the second-second pattern area P2b. That is, the second opening region O2 of the second-first pattern region P2a may have the same shape and size as the second opening region O2 of the second-second pattern region P2b.
  • the second unit pattern may have a mesh shape.
  • the second unit pattern of each of the 2-1 pattern area P2a and the 2-2 pattern area P2b may have a set horizontal width b1 and a vertical width b2.
  • each of the horizontal width b1 and the vertical width b2 of the second unit pattern may be about 450 ⁇ m or less.
  • each of the horizontal width b1 and the vertical width b2 of the second unit pattern may be about 400 ⁇ m or less.
  • the horizontal width b1 and the vertical width b2 of the second unit pattern may be the same as each other. That is, the second unit pattern of the 2-1 pattern area P2a and the 2-2 pattern area P2b may have a square shape.
  • the 2-1 th pattern region P2a may be disposed on the substrate 100 to be symmetrical with the 2-2 th pattern region P2b.
  • the 2-1 pattern area P2a and the 2-2 pattern area P2b may be symmetric with respect to the light emitting device 200 . That is, the number of the second opening regions O2 included in the second-first pattern region P2a is equal to the number of the second opening regions O2 included in the second-second pattern region P2b. can be the same.
  • the area occupied by the 2-1th pattern region P2a with respect to the light emitting device 200 may be the same as the area occupied by the 2-2nd pattern region P2b.
  • the size of the second unit pattern of the second pattern area P2 may be different from the size of the first unit pattern of the first pattern area P1 .
  • a size of the second unit pattern may be greater than a size of the first unit pattern.
  • the horizontal width b1 and the vertical width b2 of the second unit pattern may be greater than the horizontal width a1 and the vertical width a2 of the first unit pattern.
  • the width (horizontal or vertical width) of the second opening region O2 may be greater than the width (horizontal or vertical width) of the first opening region O1 .
  • the first pattern region P1 of the electrode layers 110 and 120 may have a set shape.
  • the first pattern region P1 of the first electrode 110 and the second electrode 120 has a circular, elliptical, and polygonal shape. Or, it may have a shape close to the above-described shape.
  • the first pattern region P1 may have a circular, elliptical, or polygonal shape centered on the optical axis of the light emitting device 200 , or may have a shape close to the above-described shape.
  • the first pattern region P1 may have a shape corresponding to a hot spot formed by the light emitting device 200 . That is, the first pattern region P1 formed by the plurality of first unit patterns may have a shape close to a circle.
  • the first pattern area P1 may have a set area.
  • the area occupied by the first pattern region P1 including the plurality of first unit patterns in the electrode layers 110 and 120 corresponds to an area corresponding to a hot spot formed by the light emitting device 200 .
  • an area occupied by the first pattern region P1 may be larger than an area of the light emitting device 200 .
  • the area of the region occupied by the first pattern region P1 may be about 5 times to about 15 times the area of the light emitting device 200 .
  • the area occupied by the first pattern region P1 may be about 5 to about 15 times the area of the lower surface of the light emitting device 200 in contact with the substrate 100 .
  • the area occupied by the first pattern region P1 may be about 5 to about 10 times the area of the lower surface of the light emitting device 200 .
  • the area occupied by the first pattern region P1 When the area occupied by the first pattern region P1 is less than about 5 times the area of the lower surface of the light emitting device 200 , it may be difficult to effectively prevent the formation of a hot spot of the light emitting device 200 . That is, since the area of the first pattern region P1 is too small, a hot spot may be formed in a region after the circumference of the first pattern region P1 . In addition, when the area occupied by the first pattern region P1 exceeds about 15 times the area of the lower surface of the light emitting device 200, the formation of a hot spot of the light emitting device 200 can be prevented, but the Since the area occupied by the first pattern region P1 is too large, the amount of light emitted through the opening regions of the electrode layers 110 and 120 may be small.
  • the area occupied by the first pattern region P1 in the electrode layers 110 and 120 preferably satisfies the above-described range with respect to the area of the light emitting device 200 .
  • the lighting device 1000 according to the embodiment has improved luminous efficiency, can emit uniform light, and since the electrode layers 110 and 120 include a plurality of pattern regions P1 and P2, the light emitting device ( 200) can effectively dissipate the emitted heat.
  • the light emitting device 200 may be disposed on the substrate 100 .
  • the light emitting device 200 may be disposed on the lower surface of the substrate 100 .
  • the light emitting device 200 may be disposed to face a reflective layer 300 to be described later.
  • the light emitting device 200 is an LED chip emitting light on at least five sides and may be disposed on the substrate 100 in the form of a flip chip.
  • the light emitting device 200 may be a horizontal chip or a vertical chip. In the horizontal chip, two different electrodes may be disposed in a horizontal direction, and in the vertical chip, two different electrodes may be disposed in a vertical direction. Since the light emitting device 200 is connected to another chip or wiring pattern with a wire in the case of the horizontal chip or the vertical chip, the thickness of the module can be increased due to the height of the wire, and the pad space for bonding the wire is reduced. may be needed
  • the light emitting device 200 may include a package in which an LED chip is packaged.
  • the LED chip may emit at least one of blue, red, green, ultraviolet (UV), and infrared light
  • the light emitting device 200 may emit at least one of white, blue, red, green, and infrared light.
  • the light emitting device 200 may be of a top view type in which a bottom portion is electrically connected to the substrate 100 .
  • the optical axis of the light emitting device 200 may be perpendicular to the lower surface of the substrate 100 .
  • the light emitting device 200 may be electrically connected to the electrode layers 110 and 120 .
  • the light emitting device 200 may be electrically connected to the first electrode 110 and the second electrode 120 on the substrate 100 by a conductive bonding member (not shown) with the substrate 100 .
  • the conductive bonding member may be a solder material or a metal material.
  • a plurality of the light emitting devices 200 may be disposed on the substrate 100 .
  • a plurality of light emitting devices 200 spaced apart from each other in a first direction (x-axis direction) may be disposed on the substrate 100 .
  • a plurality of light emitting devices 200 spaced apart from each other in the second direction (y-axis direction) may be disposed on the substrate 100 .
  • the plurality of light emitting devices 200 when viewed in a plan view, the plurality of light emitting devices 200 may be arranged in c rows ⁇ d columns (c and d are natural numbers equal to or different from each other).
  • the light emitting device 200 may include a light emitting surface from which light is emitted.
  • the light emitting surface of the light emitting device 200 may face the upper surface of the reflective layer 300 .
  • the light emitting surface may be parallel to the upper surface of the reflective layer 300 .
  • the light emitting surface of the light emitting device 200 may emit light of the highest intensity in the third direction (z-axis direction), for example, in the direction of the upper surface of the reflective layer 300 .
  • the light emitting surface may be a vertical plane, or may include a concave or convex surface.
  • the light emitting device 200 may emit light toward the reflective layer 300 .
  • light emitted through the light emitting surface of the light emitting device 200 may be provided to the reflective layer 300 .
  • the light provided to the reflective layer 300 may be reflected by the reflective layer 300 and emitted in the direction of the substrate 100, and the light passing through the substrate 100 may have the form of a line light source or a surface light source. . That is, the lighting device 1000 may be an indirect lighting device. Accordingly, it is possible to prevent the light emitting device 200 from being visually recognized from the outside.
  • the optical axis of the light emitting device 200 may be perpendicular to the lower surface of the substrate 100 .
  • the optical axis of the light emitting device 200 may be perpendicular to the top surface of the reflective layer 300 .
  • the reflective layer 300 may be disposed on the substrate 100 .
  • the reflective layer 300 may be disposed on the lower surface of the substrate 100 .
  • the reflective layer 300 may be disposed below the lower surface of the substrate 100 and the light emitting device 200 .
  • the reflective layer 300 may be spaced apart from the substrate 100 and the light emitting device 200 and may be disposed to face the light emitting surface of the light emitting device 200 .
  • the reflective layer 300 may have an area greater than or equal to the area of the lower surface of the substrate 100 .
  • the reflective layer 300 may include a film layer (not shown).
  • the film layer may be provided in the form of a film having a metallic material or a non-metallic material.
  • the metallic material may include a metal such as aluminum, silver, or gold.
  • the non-metallic material may include a plastic material or a resin material.
  • the plastic material is polyethylene, polypropylene, polystyrene, polyvinyl chloride, polybiphenyl chloride, polyethylene terephthalate, polyvinyl alcohol, polycarbonate, polybutylene terephthalate, polyethylene naphthalate, polyamide, polyacetal, polyphenylene.
  • the film layer may be implemented as a single layer or a multilayer, and light reflection efficiency may be improved by such a layer structure.
  • the film layer may be provided in a color.
  • the film layer may be provided in a color having a low light absorption rate and excellent light reflection characteristics.
  • the film layer may be provided in white having excellent light reflection characteristics.
  • the film layer may be formed of white polyethylene naphthalate.
  • the reflective layer 300 may include a plurality of reflective pattern regions R1 .
  • the plurality of reflective pattern regions R1 may be disposed in regions that do not correspond to the light emitting device 200 .
  • the reflective pattern region R1 may be disposed in a region that does not overlap the light emitting device 200 in a vertical direction (third direction, z-axis direction).
  • Each of the plurality of reflective pattern regions R1 may have various shapes when viewed from above.
  • the upper shape of the reflective pattern region R1 may have a circular shape, an elliptical shape, a polygonal shape, or a shape close to the above-described shape.
  • the reflective pattern region R1 may be provided in the form of a donut that is not disposed in a region corresponding to the light emitting device 200 in a vertical direction.
  • the reflective pattern region R1 may be formed in the entire remaining region of the reflective layer 300 except for a region corresponding to the light emitting device 200 .
  • the reflective pattern region R1 may include a plurality of unit reflective patterns 310 .
  • the reflective pattern region R1 may mean a region in which a plurality of unit reflective patterns 310 are disposed.
  • the plurality of unit reflection patterns 310 may have a dot shape.
  • the plurality of unit reflective patterns 310 may be disposed on a lower surface of the substrate 100 and an upper surface of the reflective layer 300 facing the light emitting device 200 .
  • the unit reflection pattern 310 may be disposed on the upper surface of the film layer facing the light emitting device 200 .
  • the plurality of unit reflection patterns 310 may be disposed on the upper surface of the reflective layer 300 , for example, in a protruding form on the upper surface of the film layer.
  • the unit reflective pattern 310 may be disposed on the upper surface of the reflective layer 300 to protrude toward the light emitting device 200 .
  • the plurality of unit reflection patterns 310 may be disposed to be spaced apart from each other in the first direction and the second direction, and may be disposed in an area that does not correspond to the light emitting device 200 .
  • the plurality of unit reflection patterns 310 may be disposed in an area that does not overlap the light emitting device 200 in a vertical direction (third direction, z-axis direction).
  • the plurality of unit reflection patterns 310 may be disposed in a region overlapping the electrode layers 110 and 120 in a vertical direction.
  • the plurality of unit reflection patterns 310 may be disposed in a region that vertically overlaps with the first pattern region P1 of the electrode layers 110 and 120 .
  • the plurality of unit reflection patterns 310 may be disposed to overlap the first and second pattern regions P1 and P2 of the electrode layers 110 and 120 in a vertical direction.
  • the plurality of unit reflection patterns 310 may be formed through a printing process.
  • the plurality of unit reflective patterns 310 may include reflective ink.
  • the plurality of unit reflection patterns 310 may be printed with a material including any one of TiO 2 , CaCO 3 , BaSO 4 , Al 2 O 3 , Silicon, and PS.
  • the material of the unit reflection pattern 310 may be white having excellent reflection characteristics.
  • the plurality of unit reflection patterns 310 may have various shapes such as a circle, an ellipse, and a polygon when viewed from the top.
  • each of the plurality of unit reflection patterns 310 may have a hemispherical shape or a polygonal shape in side cross-section.
  • the pattern density of the plurality of unit reflection patterns 310 may change as the distance from the region corresponding to the light emitting device 200 is increased.
  • the density of the plurality of unit reflective patterns 310 may be increased as the distance from the overlapping region vertically overlapping with the light emitting device 200 on the upper surface of the reflective layer 300 is increased. That is, the density of the plurality of unit reflection patterns 310 may increase as the distance from the optical axis of the light emitting device 200 increases in the horizontal direction.
  • the size of each of the plurality of unit reflection patterns 310 may increase or be the same as the distance from the overlapping area increases. For example, the horizontal width of each of the plurality of unit reflection patterns 310 may increase as the distance from the overlapping area increases.
  • the reflective layer 300 has a reflectance of light emitted from the light emitting device 200 .
  • the lighting device 1000 may reduce the loss of light emitted to the outside through the open area of the substrate 100 and may improve the luminance of the surface light source.
  • the reflective layer 300 may have a thickness of about 50 ⁇ m to about 500 ⁇ m. When the thickness of the reflective layer 300 is less than about 50 ⁇ m, the light reflection characteristics of the reflective layer 300 may be deteriorated, and the reliability of the lighting device 1000 may be deteriorated. In addition, when the thickness of the reflective layer 300 exceeds about 500 ⁇ m, the overall thickness of the lighting device 1000 may increase, thereby reducing flexibility of the lighting device 1000 .
  • the reflective layer 300 may be about 80 ⁇ m to about 350 ⁇ m in consideration of reliability and light reflection characteristics. Accordingly, the reflective layer 300 may effectively reflect the incident light so that the light is emitted in an even distribution, and may increase the total amount of light of the lighting device 1000 .
  • the first resin layer 410 may be disposed on the substrate 100 .
  • the first resin layer 410 may be disposed on the lower surface of the substrate 100 .
  • the first resin layer 410 may be disposed between the substrate 100 and the reflective layer 300 .
  • the first resin layer 410 may be disposed between the lower surface of the substrate 100 and the upper surface of the reflective layer 300 .
  • the first resin layer 410 may be disposed on all or a portion of the lower surface of the substrate 100 .
  • the first resin layer 410 may be formed of a transparent material.
  • the first resin layer 410 may include a resin material such as silicone or epoxy.
  • the first resin layer 410 may include a thermosetting resin material, for example, may selectively include PC, OPS, PMMA, PVC, and the like.
  • the first resin layer 410 may be formed of glass, but is not limited thereto.
  • the main material of the first resin layer 410 may be a resin material having a urethane acrylate oligomer as a main material.
  • a mixture of urethane acrylate oligomer, which is a synthetic oligomer, and a polymer type, which is polyacrylic may be used.
  • the low-boiling dilution type reactive monomer IBOA isobornyl acrylate
  • HPA Hydrophilicitylpropyl acrylate
  • 2-HEA 2-hydroxyethyl acrylate
  • the first resin layer 410 is provided as a layer for guiding light with a resin, it may be provided with a thinner thickness than in the case of glass and is ductile.
  • the first resin layer 410 may emit the point light source emitted from the light emitting device 200 in the form of a line light source or a surface light source.
  • the upper surface of the first resin layer 410 may emit light by diffusing the light emitted from the light emitting device 200 .
  • beads (not shown) may be included in the first resin layer 410 , and the beads may diffuse and reflect incident light to increase the amount of light.
  • the beads may be disposed in an amount of 0.01 to 0.3% based on the weight of the first resin layer 410 .
  • the bead is made of any one selected from silicon, silica, glass bubble, polymethyl methacrylate (PMMA), urethane, Zn, Zr, Al 2 O 3 , and acryl. may be, and the particle diameter of the beads may be in the range of about 1 ⁇ m to about 20 ⁇ m, but is not limited thereto.
  • the first resin layer 410 may have a thickness greater than that of the light emitting device 200 .
  • the first resin layer 410 may have a thickness of about 5 mm or less.
  • the first resin layer 410 may have a thickness of about 0.5 mm to about 4 mm.
  • the thickness h1 of the first resin layer 410 is less than about 0.5 mm, it may be difficult to effectively guide the light to be emitted from the light emitting device 200 . That is, it may be difficult for the lighting device 1000 to implement a planar light source because the distance between the light emitting device 200 and the reflective layer 300 is too small.
  • the thickness h1 of the first resin layer 410 exceeds about 4 mm, the overall optical path may increase.
  • the thickness h1 of the first resin layer 410 preferably satisfies the above-described range.
  • the first resin layer 410 may be disposed to surround the light emitting device 200 .
  • the first resin layer 410 may seal the light emitting device 200 .
  • the first resin layer 410 may protect the light emitting device 200 and reduce loss of light emitted from the light emitting device 200 .
  • the first resin layer 410 may contact the surface of the light emitting device 200 and may contact the light emitting surface of the light emitting device 200 . Also, the first resin layer 410 may be in contact with a lower surface of the substrate 100 and an upper surface of the reflective layer 300 . That is, the first resin layer 410 can support the substrate 100 , the light emitting device 200 , and the reflective layer 300 , and the components 100 , 200 , 300 are set at a set interval, can be made to maintain.
  • the second resin layer 420 may be disposed on the substrate 100 .
  • the second resin layer 420 may be disposed on the upper surface of the substrate 100 opposite to the lower surface of the substrate 100 on which the first resin layer 410 is disposed.
  • the second resin layer 420 may be disposed on the entire or partial area of the upper surface of the substrate 100 .
  • the second resin layer 420 may be formed of a transparent material.
  • the second resin layer 420 may include a resin material such as silicone or epoxy.
  • the second resin layer 420 may include a thermosetting resin material, for example, may selectively include PC, OPS, PMMA, PVC, and the like.
  • the second resin layer 420 may be formed of glass.
  • the main material of the second resin layer 420 may be a resin material having a urethane acrylate oligomer as a main material.
  • a resin material having a urethane acrylate oligomer as a main material for example, a mixture of urethane acrylate oligomer, which is a synthetic oligomer, and a polymer type, which is polyacrylic, may be used.
  • the second resin layer 420 may include the same material as the first resin layer 410 .
  • the second resin layer 420 may be provided as a light guiding layer.
  • the second resin layer 420 may guide light incident through the substrate 100 .
  • the second resin layer 420 may further diffuse the light that is reflected from the reflective layer 300 and has passed through the first resin layer 410 and the substrate 100 .
  • beads (not shown) may be included in the second resin layer 420 , and the beads may diffuse and reflect incident light to increase the amount of light.
  • the beads may be disposed in an amount of 0.01 to 0.3% based on the weight of the second resin layer 420 .
  • the bead is made of any one selected from silicon, silica, glass bubble, polymethyl methacrylate (PMMA), urethane, Zn, Zr, Al 2 O 3 , and acryl.
  • the second resin layer 420 may function as an adhesive layer.
  • the second resin layer 420 may be provided as an adhesive layer for bonding the substrate 100 disposed below the second resin layer 420 and two components disposed thereon.
  • the second resin layer 420 may have a set thickness h2.
  • the thickness h2 of the second resin layer 420 may be about 2 mm or less.
  • the thickness h2 of the second resin layer 420 may be about 50 ⁇ m to about 1.5 mm.
  • the thickness h2 of the second resin layer 420 is too thin, so that the substrate 100 And it may be difficult to effectively guide the light emitted through the first resin layer 410 .
  • the thickness h2 of the second resin layer 420 exceeds about 1.5 mm, the luminance uniformity characteristic of the light emitted through the second resin layer 420 may be deteriorated.
  • the thickness h2 of the second resin layer 420 exceeds about 1.5 mm, the overall thickness of the lighting device 1000 may increase to reduce the degree of freedom in design, and the second resin layer ( Light loss may occur due to the thickness h2 of the 420 . Accordingly, the thickness h2 of the second resin layer 420 preferably satisfies the above-described range.
  • a thickness h2 of the second resin layer 420 may be different from a thickness h1 of the first resin layer 410 .
  • the thickness h2 of the second resin layer 420 may be thinner than the thickness h1 of the first resin layer 410 .
  • the thickness h2 of the second resin layer 420 may be about 0.03% to about 95% of the thickness h1 of the first resin layer 410 . Accordingly, the lighting device 1000 according to the embodiment may emit light as a surface light source having excellent uniformity. That is, as the first and second resin layers 410 and 420 satisfy the above-described thickness ranges, the uniformity of light emitted through the upper surface of the second resin layer 420 may be excellent.
  • the light blocking layer 500 may be disposed on the substrate 100 .
  • the light blocking layer 500 may be disposed on the second resin layer 420 .
  • the light blocking layer 500 may be disposed on the upper surface of the second resin layer 420 and may be spaced apart from the substrate 100 .
  • the light blocking layer 500 may include an optical film 510 and a plurality of light blocking pattern regions R2 including a plurality of unit light blocking patterns 530 .
  • the optical film 510 may include a transparent material.
  • the optical film 510 may be spaced apart from the substrate 100 and transmit light emitted upward from the upper surface of the second resin layer 420 .
  • the optical film 510 may include a material having a light transmittance of about 80% or more.
  • the optical film 510 may include a material having a light transmittance of about 85% or more.
  • the optical film 510 may include at least one of polyethylene terephthalate (PET), polystyrene (PS), polyimide (PI), polyethylene naphthalate (PEN), and poly carbonate (PC).
  • the light blocking pattern region R2 may have a set shape.
  • the light blocking pattern area R2 may have a circular or elliptical polygonal shape, or a shape close to the above-described shape.
  • the light blocking pattern region R2 means an area in which the plurality of unit light blocking patterns 530 are formed, and the outermost part of the plurality of unit light blocking patterns 530 disposed at the outermost side of the area R2 is a straight line or It may mean an area connected by a curve.
  • the plurality of light blocking pattern regions R2 may be disposed in regions corresponding to the plurality of light emitting devices 200 .
  • the light blocking pattern region R2 may be disposed in a region overlapping the light emitting device 200 in a vertical direction (third direction).
  • a portion of the light blocking pattern region R2 may be disposed in a region that vertically overlaps with the reflective pattern region R1 .
  • the plurality of light blocking pattern regions R2 may be provided in a number corresponding to the plurality of light emitting devices 200 . That is, one light blocking pattern region R2 may be matched with one light emitting device 200 on a one-to-one basis.
  • An area of the light blocking pattern region R2 may be larger than an area of a lower surface of the light emitting device 200 .
  • the area of the light blocking pattern region R2 may be about 5 to about 20 times the area of the lower surface of the light emitting device 200 .
  • the area of the light blocking pattern region R2 may be about 8 times to about 15 times the area of the lower surface of the light emitting device 200 .
  • An area of the light blocking pattern region R2 may be smaller than an area of a light transmission region other than the light blocking pattern region R2 in the light blocking layer 500 . That is, the total area of the light blocking pattern region R2 is located between the plurality of light blocking pattern regions R2 , and is equal to that of the light transmission region of the light blocking layer 500 in which the unit light blocking pattern 530 is not disposed. may be smaller than the area.
  • the light blocking pattern region R2 may be disposed in a region that vertically overlaps with the first pattern region P1 of the electrode layers 110 and 120 . In this case, the area of the light blocking pattern region R2 may be larger than the area of the first pattern region P1 .
  • the area of the light blocking pattern region R2 may be large within a range of about 1.4 times or less of the area of the first pattern region P1 . In more detail, the area of the light blocking pattern region R2 may be large within a range of about 1.25 times or less of the area of the first pattern region P1 . That is, as the light blocking pattern region R2 has a larger area than the first pattern region P1 , a portion of the light blocking pattern region R2 is a second pattern region P2 of the electrode layers 110 and 120 . and may be disposed in a region overlapping with the vertical direction (z-axis direction).
  • the plurality of unit light blocking patterns 530 may be disposed on the optical film 510 .
  • the unit light blocking pattern 530 may be disposed on at least one of a lower surface of the optical film 510 facing the second resin layer 420 and an upper surface opposite to the lower surface.
  • the unit light blocking pattern 530 may be disposed on the lower surface of the optical film 510 to face the upper surface of the second resin layer 420 as shown in FIG. 5 .
  • the plurality of unit light blocking patterns 530 may include ink.
  • the unit light blocking pattern 530 may be white having excellent reflection characteristics.
  • the unit light blocking pattern 530 may be printed with a material including any one of TiO 2 , CaCO 3 , BaSO 4 , Al 2 O 3 , Silicon, and PS. Accordingly, the plurality of unit light blocking patterns 530 may have a shape protruding from the lower surface of the optical film 510 in the direction of the second resin layer 420 .
  • the plurality of unit light blocking patterns 530 may be disposed to be spaced apart from each other on the optical film 510 .
  • the plurality of unit blocking patterns 530 may be disposed to be spaced apart from each other in the first direction and the second direction as shown in FIG. 6 .
  • the unit blocking patterns 530 disposed adjacent to each other in the first direction may be spaced apart from each other by a first interval d1
  • the unit blocking patterns 530 disposed adjacent to each other in the second direction may be spaced apart from each other by the second interval d1 .
  • d2 can be spaced apart.
  • the first interval d1 and the second interval d2 may be the same.
  • the first interval d1 and the second interval d2 may be about 300 ⁇ m or less. That is, the plurality of unit light blocking patterns 530 may be arranged in a row ⁇ b column (a and b are natural numbers equal to or greater than 2) and may be arranged at equal intervals in the first and second directions.
  • the plurality of unit blocking patterns 530 may be disposed at a set position.
  • the unit light blocking patterns 530 disposed in each row may be disposed on the same line.
  • an imaginary line connecting the centers of the unit light blocking patterns 530 arranged in each row may be parallel to the first direction.
  • the unit light blocking patterns 530 arranged in each column may be arranged on the same line.
  • an imaginary line connecting the centers of the unit light blocking patterns 530 arranged in each column may be parallel to the second direction.
  • the plurality of unit blocking patterns 530 may be disposed in a horizontal direction symmetrical with respect to the center of the blocking pattern region R2 .
  • the plurality of unit light blocking patterns 530 may be symmetrical with respect to an imaginary line extending from the center of the light blocking pattern region R2 in the first and second directions.
  • the plurality of unit light blocking patterns 530 may be disposed in a form symmetrical to the origin with respect to the center of the light blocking pattern region R2 .
  • the center of the light blocking pattern region R2 may overlap the light emitting device 200 in a vertical direction.
  • the plurality of unit blocking patterns 530 may be arranged in a set number.
  • the number of the unit light blocking patterns 530 disposed in the first to a-th rows may be different from or partially the same.
  • the number of unit blocking patterns 530 disposed in each of the first to a-th rows may overlap the center of the light blocking pattern region R2 or be disposed in a row closest to the center the most, The least amount may be disposed in a row furthest from the center of the light blocking pattern region R2, for example, in a first row (top of FIG. 6 ) and a-th row (bottom part of FIG. 6 ).
  • the number of unit light blocking patterns 530 disposed in two adjacent rows in the first to a-th rows may be the same. For example, when a is 5 or more, the number of unit light blocking patterns 530 disposed in a row that overlaps or is closest to the center of the light blocking pattern region R2 is immediately above and/or below the row. It may be the same as the number of unit light blocking patterns 530 arranged in the located row. In addition, the number of the unit light blocking patterns 530 disposed in the first to bth columns (where b is a natural number equal to or greater than 2) in row a ⁇ column b may be different from or partially the same.
  • the number of unit blocking patterns 530 disposed in each of the first to bth columns may overlap the center of the light blocking pattern region R2 or may be disposed in a column closest to the center, and The least amount may be disposed in a column furthest from the center of the light blocking pattern region R2 , for example, in the first column (the leftmost column of FIG. 6 ) and the bth column (the rightmost column of FIG. 6 ).
  • the number of unit light blocking patterns 530 disposed in two adjacent columns in the first to bth columns may be the same.
  • the number of unit light-shielding patterns 530 disposed in a row that overlaps or is closest to the center of the light-shielding pattern region R2 is directly to the left of the column and/or It may be the same as the number of unit light blocking patterns 530 arranged in the right column.
  • the values of a and b may be the same.
  • the plurality of unit light blocking patterns 530 may be provided on the light blocking layer 500 in a row ⁇ a column.
  • the number of unit blocking patterns 530 disposed in each of the first to a-th rows may be the same as the number of unit blocking patterns 530 disposed in the corresponding first to a-th columns. . That is, the number of unit light blocking patterns 530 respectively disposed in n rows and n columns may be the same.
  • the number of unit light blocking patterns 530 arranged in each of the first row and the first column is different from each other. It may be the same, and the number of unit light blocking patterns 530 respectively disposed in the third row and the third column may be provided to be the same.
  • the density of the plurality of unit blocking patterns 530 may vary in the blocking pattern region R2 .
  • the density of the plurality of unit light blocking patterns 530 may decrease as the distance from the region overlapping the optical axis of the light emitting device 200 in the vertical direction increases.
  • the plurality of unit blocking patterns 530 may have a set size.
  • each of the unit light blocking patterns 530 arranged in the a row ⁇ b column may have a set size.
  • the unit light blocking patterns 530 disposed in two adjacent rows among the row a may have the same size.
  • the size of the unit shading pattern 530 disposed in a row that overlaps or is closest to the center of the shading pattern region R2 in the row a is determined by the unit shading pattern 530 disposed in a row positioned above and/or below the center of the shading pattern region R2. It may be the same as the size of 530 .
  • the size of the unit light blocking patterns 530 disposed in two adjacent columns of column b may be the same as each other.
  • the size of the unit blocking pattern 530 disposed in a column that overlaps with or is closest to the center of the light blocking pattern region R2 in the column b is the size of the unit blocking pattern 530 disposed in a column located on the left and/or right side of the unit blocking pattern 530 . ) may be the same as the size of
  • the plurality of unit light blocking patterns 530 may include a central pattern 539 , a first pattern 531 , a second pattern 532 , a third pattern 533 , and a fourth pattern 534 .
  • the center pattern 539 may overlap the center of the light blocking pattern area R2 or may be disposed in an area closest to the center.
  • the first pattern 531 may be disposed on the leftmost (first column) of the blocking pattern region R2
  • the second pattern 532 may be disposed on the rightmost side (the bth) of the blocking pattern region R2 . column) can be placed.
  • the third pattern 533 may be disposed on the uppermost side (first row) of the light blocking pattern region R2
  • the fourth pattern 534 may be disposed on the lowermost side of the light blocking pattern region R2 ( R2 ). may be disposed in the a-th row).
  • the first to fourth patterns 531 , 532 , 533 , and 534 may be a unit light blocking pattern 530 positioned at the furthest distance from the light emitting device 200 .
  • the central pattern 539 and the first to fourth patterns 531 , 532 , 533 , and 534 may each have a first horizontal C1 and a first vertical C2 length and may have the same size as each other. .
  • the plurality of unit light blocking patterns 530 arranged in the a row ⁇ b column may be provided with the same size (planar area) regardless of the distance from the light emitting device 200 .
  • the length of the first horizontal C1 and the first vertical C2 may be about 300 ⁇ m or less.
  • the first horizontal (C1) and the first vertical (C2) length may be about 250 ⁇ m or less.
  • the first horizontal C1 and the first vertical C2 length may be the same within the above-described range.
  • the size of the unit light blocking pattern 530 preferably satisfies the above-described range in order to prevent the formation of hot spots and decrease the overall luminance of the device.
  • the lighting device 1000 may further include a protective layer (not shown).
  • the protective layer may be disposed on the light blocking layer 500 .
  • the protective layer is a layer positioned at the top of the lighting device 1000 and may serve to protect components disposed thereunder.
  • the protective layer may include a light-transmitting material.
  • the protective layer may include a material through which light passing through the upper and lower surfaces is transmitted. That is, the protective layer may be a light transmitting layer.
  • the passivation layer may include at least one of polyethylene terephthalate (PET), polystyrene (PS), polyimide (PI), polyethylene naphthalate (PEN), and poly carbonate (PC).
  • PET polyethylene terephthalate
  • PS polystyrene
  • PI polyimide
  • PEN polyethylene naphthalate
  • PC poly carbonate
  • the protective layer may have a set thickness and protect the components disposed thereunder.
  • the protective layer may have a thickness of about 500 ⁇ m to about 3mm.
  • the protective layer may have a thickness of about 800 ⁇ m to about 2.5 mm.
  • the thickness of the protective layer is less than about 500 ⁇ m, it may be difficult to effectively protect the components disposed thereunder due to a relatively thin thickness.
  • the thickness of the protective layer exceeds about 3 mm, the overall thickness of the lighting device 1000 may increase, and luminance may decrease.
  • the thickness of the protective layer exceeds about 3 mm, the flexibility of the lighting device 1000 may be reduced by the thickness. In this case, the structure and shape to which the lighting device 1000 can be applied may be limited. Therefore, the thickness of the protective layer preferably satisfies the above-mentioned range.
  • the lighting apparatus 1000 may include a light blocking layer 500 including a light blocking pattern area R2 , and the light blocking pattern area R2 may include a plurality of unit light blocking patterns 530 .
  • the plurality of unit light blocking patterns 530 may have the same shape and size and may be disposed at equal intervals, and the light blocking pattern region R2 has an area set in a region corresponding to the light emitting device 200 , can be placed. Accordingly, the lighting device 1000 can provide light of uniform luminance by effectively preventing the light emitted from the light emitting device 200 from being concentrated, and the amount of light emitted by the light blocking pattern region R2 is It is possible to effectively prevent the overall luminance from being lowered. Accordingly, the lighting apparatus 1000 according to the embodiment may provide a uniform line light source or a surface light source.
  • FIG. 7 is another plan view of a light blocking layer according to an embodiment.
  • descriptions of the same and similar components as those of the above-described lighting device are omitted, and the same reference numerals are assigned to the same and similar components.
  • the light blocking layer 500 may include an optical film 510 and a plurality of light blocking pattern regions R2 including a plurality of unit light blocking patterns 530 .
  • the plurality of unit light blocking patterns 530 may be disposed on the optical film 510 .
  • the unit light blocking pattern 530 may be disposed on at least one of a lower surface and an upper surface of the optical film 510 .
  • the plurality of unit light blocking patterns 530 may be disposed to be spaced apart from each other on the optical film 510 .
  • the plurality of unit light blocking patterns 530 may be disposed to be spaced apart from each other in the first direction and the second direction as shown in FIG. 7 .
  • the interval between the unit light blocking patterns 530 may be changed.
  • the distance between the unit light blocking patterns 530 may decrease.
  • the interval between the center pattern 539 overlapping or closest to the center of the light blocking pattern region R2 and the first unit blocking pattern 530a spaced apart in the first direction is the first interval d1 .
  • the interval between the central pattern 539 and the second unit light blocking pattern 530b spaced apart in the second direction may be a second interval d2.
  • an interval between the first unit blocking pattern 530a and the third unit blocking pattern 530c spaced apart in the first direction may be a third interval d3, and the second unit blocking pattern 530b and
  • An interval between the fourth unit light blocking patterns 530d spaced apart in the second direction may be a fourth interval d4 .
  • the first interval d1 and the second interval d2 may be about 300 ⁇ m or less
  • the third interval d3 and the fourth interval d4 are the first interval d1 and It may be smaller than the second interval d2.
  • the first interval d1 and the second interval d2 may have the same interval
  • the third interval d3 and the fourth interval d4 are They may have the same spacing from each other.
  • the plurality of unit light blocking patterns 530 may be arranged in a row ⁇ b column (a and b are natural numbers equal to or greater than 2) and may be disposed at a set position.
  • the unit light blocking patterns 530 disposed in some of the first to a-th rows may be disposed on the same line, and the unit light blocking patterns 530 disposed in the remaining rows may not be disposed on the same line. there is.
  • the unit blocking patterns 530 disposed in some of the first to bth columns may be disposed on the same line, and the unit blocking patterns 530 disposed in the remaining columns may not be disposed on the same line.
  • the unit light blocking patterns 530 disposed in a row that overlaps or is closest to the center of the light blocking pattern region R2 among the a number of rows may be disposed on the same line. That is, an imaginary line connecting the centers of the unit light blocking patterns 530 in the row (rows overlapping or closest to the center) may be parallel to the first direction.
  • the unit light blocking pattern 530 disposed in a row (a row not overlapping the center or disposed closest to the center) other than the row (row overlapping the center or disposed closest to the center) among the a number of rows is They may not be collinear.
  • the unit blocking patterns 530 disposed in the central region of the row may be located above or below the remaining unit blocking patterns 530 disposed in the same row. there is. For this reason, an imaginary line connecting the centers of the unit light blocking patterns 530 in the row may not be parallel to the first direction.
  • the unit blocking patterns 530 disposed in a column that overlaps or is closest to the center of the blocking pattern region R2 among the b columns may be disposed on the same line. That is, an imaginary line connecting the centers of the unit light blocking patterns 530 in the column (a column overlapping with the center or disposed closest to the center) may be parallel to the second direction.
  • the unit light blocking pattern 530 disposed in a column other than the column (a column overlapping the center or disposed closest to the center) (a column not overlapping the center or disposed closest to the center) is They may not be collinear.
  • the unit blocking pattern 530 disposed in the central region of the column may be located to the left or right of the remaining unit blocking patterns 530 disposed in the same column. For this reason, the imaginary line connecting the centers of the unit light blocking patterns 530 in the column may not be parallel to the second direction.
  • the unit blocking pattern 530 disposed at the center of the first row may be disposed above the remaining unit blocking patterns 530 .
  • the unit blocking pattern 530 disposed at the center of the first column may be disposed to the left of the remaining unit blocking patterns 530 . That is, the interval between the unit blocking patterns 530 is decreased as the distance from the light emitting device 200 increases, so that some unit blocking patterns 530 disposed in the same row and/or column are the remaining unit blocking patterns 530 . ) may not be collinear with
  • the plurality of unit blocking patterns 530 may have a set size.
  • each of the unit light blocking patterns 530 arranged in the a row ⁇ b column may have a set size.
  • the unit light blocking patterns 530 arranged in the a row ⁇ the b column may be provided in the same size. That is, the center pattern 539 , the first pattern 531 , the second pattern 532 , the third pattern 533 , and the fourth pattern are disposed at different positions in the light blocking pattern region R2 .
  • Each of the patterns 534 may have the same first horizontal C1 and first vertical C2 lengths and may have the same planar area.
  • the plurality of unit light blocking patterns 530 arranged in the a row ⁇ b column may be provided with the same size regardless of the distance from the light emitting device 200 .
  • the lighting apparatus 1000 may include a light blocking layer 500 including a light blocking pattern area R2 , and the light blocking pattern area R2 may include a plurality of unit light blocking patterns 530 .
  • the plurality of unit blocking patterns 530 may have the same shape and size, and the distance between the adjacent unit blocking patterns 530 may decrease as the distance from the light emitting device 200 increases. Accordingly, the lighting device 1000 may prevent the light emitted from the light emitting device 200 from being concentrated to provide light of uniform luminance, and the total luminance of the light emitted by the light blocking pattern region R2 . can be prevented from lowering. Accordingly, the lighting apparatus 1000 according to the embodiment may provide a uniform line light source or a surface light source.
  • FIG. 8 is another plan view of a light blocking layer according to an embodiment.
  • descriptions of the same and similar components as those of the above-described lighting device are omitted, and the same reference numerals are assigned to the same and similar components.
  • the light blocking layer 500 may include an optical film 510 and a plurality of light blocking pattern regions R2 including a plurality of unit light blocking patterns 530 .
  • the plurality of unit light blocking patterns 530 may be disposed on the optical film 510 .
  • the unit light blocking pattern 530 may be disposed on at least one of a lower surface and an upper surface of the optical film 510 .
  • the plurality of unit light blocking patterns 530 may be disposed to be spaced apart from each other on the optical film 510 .
  • the plurality of unit blocking patterns 530 may be disposed to be spaced apart from each other in the first and second directions as shown in FIG. 8 .
  • the interval between the unit light blocking patterns 530 may be changed.
  • the distance between the unit light blocking patterns 530 may decrease.
  • the interval between the center pattern 539 overlapping or closest to the center of the light blocking pattern region R2 and the first unit blocking pattern 530a spaced apart in the first direction is the first interval d1 .
  • the interval between the central pattern 539 and the second unit light blocking pattern 530b spaced apart in the second direction may be a second interval d2.
  • the first direction distance between the third unit light blocking pattern 530c disposed on the edge of the light blocking pattern region R2 and the unit light blocking pattern 530 adjacent in the first direction may be the third interval d3 .
  • a second direction interval between the fourth unit blocking pattern 530d disposed in the edge region and the unit blocking pattern 530 adjacent in the second direction may be a fourth interval d4 .
  • the first interval d1 and the second interval d2 may be about 300 ⁇ m or less, and may be equal to each other within the above range.
  • the third interval d3 and the fourth interval d4 may be smaller than the first interval d1 and the second interval d2, respectively, and may be equal to each other.
  • the plurality of unit light blocking patterns 530 may be arranged in a row ⁇ b column (a and b are natural numbers equal to or greater than 2) and may be disposed at a set position.
  • the unit light blocking patterns 530 disposed in some of the first to a-th rows may be disposed on the same line, and the unit light blocking patterns 530 disposed in the remaining rows may not be disposed on the same line. there is.
  • the unit blocking patterns 530 disposed in some of the first to bth columns may be disposed on the same line, and the unit blocking patterns 530 disposed in the remaining columns may not be disposed on the same line.
  • the unit light blocking patterns 530 overlapping the center of the light blocking pattern region R2 or disposed in rows and columns closest to the center may be disposed on the same line.
  • the centers of the unit light blocking patterns 530 respectively disposed in the row and column may be disposed on the same line in the first and second directions, respectively.
  • the unit light blocking patterns 530 disposed in rows and columns other than the rows and columns (rows and columns that do not overlap the center or are disposed closest to the center) may not be disposed on the same line.
  • some of the plurality of unit blocking patterns 530 arranged in the row and column may be located above, below, left, or right of the remaining unit blocking patterns 530 arranged in the same row and column. Accordingly, an imaginary line connecting the centers of the unit light blocking patterns 530 in the row and column may not be parallel to the first or second direction.
  • the plurality of unit blocking patterns 530 may have a set size.
  • each of the unit light blocking patterns 530 arranged in the a row ⁇ b column may have a set size.
  • the size of the unit light blocking pattern 530 may decrease as the distance from the area overlapping the optical axis of the light emitting device 200 is increased. That is, in the light blocking pattern region R2 , the central pattern 539 may have a first horizontal C1 and a first vertical C2 length, and the first pattern 531 and the second pattern 532 . ), the size of the third pattern 533 and the fourth pattern 534 may be larger.
  • first pattern 531 , the second pattern 532 , the third pattern 533 , and the fourth pattern 534 disposed at the edge of the light blocking pattern region R2 have a second horizontal ( C3) and a second vertical (C4) length, and may have the smallest size (planar area) among the plurality of unit light blocking patterns 530 .
  • the lighting apparatus 1000 may include a light blocking layer 500 including a light blocking pattern area R2 , and the light blocking pattern area R2 may include a plurality of unit light blocking patterns 530 .
  • the plurality of unit light-shielding patterns 530 may decrease in size by decreasing horizontal and vertical lengths as they move away from the light emitting device 200 , and as they move away from the light emitting device 200 , adjacent unit light blocking patterns 530 .
  • the spacing between 530 may be reduced. Accordingly, the lighting device 1000 may prevent the light emitted from the light emitting device 200 from being concentrated to provide light of uniform luminance, and the total luminance of the light emitted by the light blocking pattern region R2 . can be prevented from lowering. Accordingly, the lighting apparatus 1000 according to the embodiment may provide a uniform line light source or a surface light source.
  • FIG. 9 is a cross-sectional view of the lighting device according to the embodiment including a half-mirror layer
  • FIG. 10 is another cross-sectional view of the half-mirror layer according to the embodiment.
  • descriptions of the same and similar components as those of the above-described lighting device are omitted, and the same reference numerals are assigned to the same and similar components.
  • the lighting apparatus 1000 may further include a half mirror layer 600 .
  • the half mirror layer 600 may be disposed on the light blocking layer 500 .
  • the half mirror layer 600 may be disposed between the light blocking layer 500 and the passivation layer.
  • the half-mirror layer 600 may be provided in a plane corresponding to the light blocking layer 500 and may be provided as a translucent mirror.
  • the half-mirror layer 600 may be formed by coating and depositing a thin film of a metal such as aluminum (Al), nickel (Ni), titanium (Ti), or copper (Cu) on a transparent substrate.
  • the half-mirror layer 600 may have a set thickness.
  • the half-mirror layer 600 may have a uniform overall thickness.
  • a thickness of the half-mirror layer 600 may be provided such that a region overlapping the light emitting device 200 in a vertical direction is thicker than a non-overlapping region.
  • a thickness of a region in which a hot spot is formed may be greater than a thickness of a region in which a hot spot is not formed.
  • the half-mirror layer 600 may include a protrusion pattern 610 disposed in an area overlapping the light emitting device 200 in a vertical direction.
  • the protrusion pattern 610 may be formed by coating and depositing the metal relatively thickly, and may be provided with a width greater than a width in a horizontal direction of the light emitting device 200 .
  • the protrusion pattern 610 may have various cross-sectional shapes.
  • the cross-sectional shape of the protrusion pattern 610 may have various shapes, such as a quadrangle (FIG. 10(a)), a polygon such as a triangle (FIG. 10(b)), and a hemispherical shape (FIG. 10(c)). there is.
  • the lighting apparatus 1000 may have improved esthetics by the half-mirror layer 600 having set transmittance and reflectivity.
  • the light emitted from the light emitting device 200 may pass through the half-mirror layer 600 and be provided to the outside.
  • the color of the half-mirror layer 600 may be visually recognized from the outside, thereby improving esthetics.
  • the half-mirror layer 600 may be provided with the same color as that of a peripheral area of the lighting device 1000 . In this case, the lighting device 1000 may have a hidden effect that can minimize external visibility by the half-mirror layer 600 .
  • the half-mirror layer 600 may include the protrusion pattern 610 to more effectively prevent the light emitted from the light emitting device 200 from being concentrated. Accordingly, the light emitted through the half-mirror layer 600 may have uniform luminance, and the lighting device 1000 may provide a line light source or a surface light source having improved light characteristics.
  • FIGS. 11 and 12 are views illustrating that the lighting device according to the embodiment has a shape bent in various directions.
  • descriptions of the same and similar components as those of the above-described lighting device are omitted, and the same reference numerals are assigned to the same and similar components.
  • the plurality of light emitting devices 200 are spaced apart from each other and may be arranged in c rows ⁇ d columns (c and d are different natural numbers).
  • the first resin layer 410 covering the plurality of light emitting devices 200 may have a long axis and a short axis corresponding to the c row and the d column
  • the lighting device 1000 is the first resin It may have a major axis and a minor axis corresponding to the layer 410 .
  • the lighting device 1000 may be provided in the form of a straight line extending in one direction.
  • the long axis and the short axis of the first resin layer 410 may have a straight line extending in the first direction (x-axis direction) without a separate curvature.
  • the lighting apparatus 1000 according to the embodiment may be provided in a bent shape in at least one of the first to third directions (x, y, and z-axis directions) as shown in FIGS. 11 and 12 .
  • at least one of a long axis and a short axis of the first resin layer 410 may include a curvature.
  • the long axis of the first resin layer 410 may include a curvature.
  • the upper and lower surfaces of the first resin layer 410 may include curved surfaces having a predetermined curvature. Accordingly, the lighting device 1000 may be provided in a shape that is meandering in a vertical direction (z-axis direction; a third direction).
  • the long axis of the second resin layer 420 may include a curvature.
  • both side surfaces of the first resin layer 410 may include curved surfaces having a predetermined curvature.
  • the lighting device 1000 may be provided in a shape that is curved in a horizontal direction.
  • the lighting device 1000 according to the embodiment may be provided in various forms including a long axis and a minor axis, and the major axis and the minor axis may be provided in a form including a straight line or a curved line.
  • the lighting device 1000 may provide a line light source or a surface light source having a uniform luminance by being provided in a straight line or a curved line to a substrate having various shapes.
  • FIGS. 13 and 14 are cross-sectional views of the lighting device according to the embodiment further including a housing.
  • descriptions of the same and similar components as those of the above-described lighting device are omitted, and the same reference numerals are assigned to the same and similar components.
  • the lighting apparatus 1000 may further include a housing 700 .
  • the housing 700 may include a material having a predetermined reliability.
  • the housing 700 may include a non-metal material such as a metal material, a resin, or a ceramic.
  • the housing 700 has an open top and may include an accommodating space therein. Some components of the lighting device 1000 may be disposed in the accommodating space of the housing 700 .
  • the reflective layer 300 , the first resin layer 410 , the light emitting device 200 , the transparent substrate 100 , the second resin layer 420 , and the light blocking layer 500 may be disposed.
  • the half-mirror layer 600 may be further disposed in the accommodation space.
  • the housing 700 may be disposed to surround the components disposed in the accommodation space.
  • the housing 700 includes a lower surface of the reflective layer 300 , the reflective layer 300 , the first resin layer 410 , the transparent substrate 100 , the second resin layer 420 , and the light blocking layer.
  • 500 and the half-mirror layer 600 may be disposed surrounding the side surfaces.
  • the housing 700 may include a lower surface of the reflective layer 300 , the reflective layer 300 , the first resin layer 410 , the transparent substrate 100 , the second resin layer 420 , and the light blocking layer.
  • the layer 500 and the half-mirror layer 600 may be disposed in direct contact with each other. Accordingly, the lighting device 1000 may provide a uniform line light source or a surface light source to the open upper region of the housing 700 .
  • the housing 700 is disposed to surround the above-described components, the lighting device 1000 may have improved reliability.
  • the housing 700 may include a material having excellent reflection characteristics or may be provided in a color having excellent light reflection characteristics. Accordingly, the housing 700 may prevent light loss by reflecting the light emitted through the side surface of the first resin layer 410 .
  • light emitted through a side surface of the substrate 100 , a side surface of the second resin layer 420 , a side surface of the light blocking layer 500 , and a side surface of the half mirror layer 600 . can maximize the amount of light emitted in the open upper direction of the housing 700 by reflecting the
  • the reflective layer 300 may be omitted as shown in FIG. 14 . That is, the light emitting surface of the light emitting device 200 may be disposed to face the bottom surface of the accommodation space, and the light emitted from the light emitting device 200 is reflected on the bottom surface of the first resin layer 410 . ) may be provided in the upper direction. In this case, the lighting device 1000 may be provided to be slimmer.
  • FIG. 15 to 19 are views illustrating an example in which a lamp including a lighting device according to an embodiment is applied to a moving device, for example, a vehicle.
  • FIG. 15 is a top view of a vehicle to which a lamp having the lighting device is applied.
  • FIG. 16 is an example in which the lighting device according to the embodiment is disposed in the front of the vehicle
  • FIG. 17 is an example in which the lighting device according to the embodiment is disposed in the rear of the vehicle.
  • 18 and 19 are examples for explaining that the lighting device according to the embodiment operates as a hidden lamp at the front of the vehicle.
  • the lighting apparatus 1000 may be applied to a lamp of a vehicle 2000 .
  • One or more lamps may be disposed in at least one of a front, a rear, and a side of the vehicle 2000 .
  • the lighting device 1000 may be provided in various shapes such as curved lines and straight lines, and may be applied to lamps disposed in various areas of the vehicle 2000 .
  • the lamp may be applied to a front lamp 2100 of a vehicle 2000 .
  • the front lamp 2100 may include at least one lamp module including a first cover member 2110 and the lighting device 1000 .
  • the first cover member 2110 may accommodate the lighting device 1000 .
  • the front lamp 2100 may provide a plurality of functions by controlling the driving timing of the lighting device 1000 included in at least one lamp module.
  • the front lamp 2100 is a first lamp module 2120 that provides at least one function of a headlamp, a turn indicator, a daytime running lamp, a high beam, a low beam, and a fog lamp by light emission of the lighting device 1000 .
  • the front lamp 2100 may provide additional functions such as a welcome light or a celebration effect when the driver opens the vehicle door.
  • the lamp may be applied to a rear lamp 2200 of a vehicle.
  • the rear lamp 2200 may include at least one lamp module including a second cover member 2210 and the lighting device 1000 .
  • the second cover member 2210 may accommodate the lighting device 1000 .
  • the rear lamp 2200 may provide a plurality of functions by controlling the driving timing of the lighting device 1000 included in at least one lamp module.
  • the rear lamp 2200 may include a second lamp module 2220 that provides at least one function of a side lamp, a brake lamp, and a turn indicator lamp by light emission of the lighting device 1000 .
  • the lamp module included in at least one of the front lamp 2100 and the rear lamp 2200 may be provided with a color set according to On and Off.
  • the front lamp 2100 may further include a fourth lamp module 2140 .
  • the lighting device 1000 included in the fourth lamp module 2140 may include the above-described half-mirror layer 600 , and the half-mirror layer 600 has a color corresponding to the color of the vehicle 2000 .
  • the fourth lamp module 2140 may emit light or not emit light according to applied power.
  • the fourth lamp module 2140 may operate in an on state emitting light from the light emitting device 200 .
  • the light emitted from the light emitting device 200 may pass through the half-mirror layer 600 and be viewed from the outside of the fourth lamp module 2140 .
  • the fourth lamp module 2140 may emit light of an amber color to provide a function of a direction indicator.
  • the fourth lamp module 2140 may be in an off state in which the light emitting device 200 does not emit light. In this case, light may not be emitted from the light emitting device 200 , and the half-mirror layer 600 may reflect light having the same color as or corresponding to the color of the vehicle 2000 . Accordingly, the same or similar color to the vehicle 2000 may be visually recognized from the outside of the fourth lamp module 2140 .
  • the fourth lamp module 2140 when the fourth lamp module 2140 is turned on, a uniform line light source or a surface light source having a small luminance deviation may be provided. In addition, when the fourth lamp module 2140 is turned off, the fourth lamp module 2140 may have a hidden effect that may not be viewed from the outside or may minimize the visibility of the fourth lamp module 2140 . In addition, the lighting device 1000 may be provided in various shapes such as a straight line or a curved line, and thus may be applied to various curved areas of the vehicle 2000 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Planar Illumination Modules (AREA)
PCT/KR2021/011241 2020-08-25 2021-08-24 조명장치 및 이를 포함하는 램프 Ceased WO2022045713A1 (ko)

Priority Applications (5)

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JP2023513180A JP7823029B2 (ja) 2020-08-25 2021-08-24 照明装置及びこれを含むランプ
CN202180053270.7A CN115989440A (zh) 2020-08-25 2021-08-24 照明装置和包括该照明装置的灯
US18/021,947 US12486960B2 (en) 2020-08-25 2021-08-24 Lighting device and lamp comprising same
EP21862010.2A EP4206525A4 (en) 2020-08-25 2021-08-24 LIGHTING DEVICE AND LAMP THEREFOR
US19/370,521 US20260049703A1 (en) 2020-08-25 2025-10-27 Lighting device and lamp comprising same

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KR1020200106813A KR20220026137A (ko) 2020-08-25 2020-08-25 조명 장치 및 이를 포함하는 램프
KR10-2020-0106813 2020-08-25

Related Child Applications (2)

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US18/021,947 A-371-Of-International US12486960B2 (en) 2020-08-25 2021-08-24 Lighting device and lamp comprising same
US19/370,521 Continuation US20260049703A1 (en) 2020-08-25 2025-10-27 Lighting device and lamp comprising same

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US12486960B2 (en) 2025-12-02
JP2023539207A (ja) 2023-09-13
EP4206525A1 (en) 2023-07-05
JP7823029B2 (ja) 2026-03-03
KR20220026137A (ko) 2022-03-04
US20260049703A1 (en) 2026-02-19
US20230358384A1 (en) 2023-11-09
CN115989440A (zh) 2023-04-18

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