WO2017191996A2 - Lighting apparatus - Google Patents

Lighting apparatus Download PDF

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Publication number
WO2017191996A2
WO2017191996A2 PCT/KR2017/004678 KR2017004678W WO2017191996A2 WO 2017191996 A2 WO2017191996 A2 WO 2017191996A2 KR 2017004678 W KR2017004678 W KR 2017004678W WO 2017191996 A2 WO2017191996 A2 WO 2017191996A2
Authority
WO
WIPO (PCT)
Prior art keywords
light
guide plate
pattern
light guide
disposed
Prior art date
Application number
PCT/KR2017/004678
Other languages
French (fr)
Korean (ko)
Other versions
WO2017191996A3 (en
Inventor
이진웅
김경진
심지인
임현석
Original Assignee
엘지이노텍 주식회사
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
Priority claimed from KR1020160054816A external-priority patent/KR102488598B1/en
Priority claimed from KR1020160056496A external-priority patent/KR102595093B1/en
Application filed by 엘지이노텍 주식회사 filed Critical 엘지이노텍 주식회사
Publication of WO2017191996A2 publication Critical patent/WO2017191996A2/en
Publication of WO2017191996A3 publication Critical patent/WO2017191996A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/65—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening

Definitions

  • Embodiments relate to a lighting device.
  • Surface lighting is used in a variety of products in many fields. For example, a space such as a studio or a museum where color is important, a living room or a kitchen or a restaurant where visual effects are important, a surface light inside a vehicle such as a car or a bus, or a restaurant / department / exhibition / convenience store in a commercial building light. It can be used internally in place of fluorescent light or general lighting device in the place of light.
  • the light emitted from the light source may be emitted in the vertical direction through the light guide plate and the diffusion sheet.
  • the pattern By forming a pattern or the like on the surface illumination, the pattern can be recognized by the light emitted from the light source from the outside, it can be applied to various fields.
  • various optical sheets such as a light guide plate and a diffusion sheet are required to uniformly emit light emitted from the light source upwardly.
  • the overall thickness of the lighting device is increased by the optical sheets, it is difficult to implement a free design, such as a curved surface, and light loss occurs due to the plurality of optical sheets, thereby lowering luminance.
  • the embodiment can implement a slim thickness and high brightness to enable a free design, and to provide a lighting device having improved visibility.
  • Lighting device the light guide plate; A light emitting member disposed on one side of the light guide plate; A pattern member disposed on the light guide plate; And a reflective member disposed below the light guide plate, wherein the pattern member includes a base substrate and a pattern layer on the base substrate, the pattern layer includes a pattern portion and a non-pattern portion, and the pattern portion includes a pigment and a scattering material. It includes.
  • the lighting apparatus may arrange the reflective member in consideration of the position of the pattern portion and the non-pattern portion of the printing member.
  • the lighting apparatus may arrange the reflective member so as not to overlap the pattern portion of the printing member.
  • the reflecting member when the power of the lighting device is turned off, light incident to the outside of the lighting device may be reflected by the reflecting member to prevent the pattern portion from being visually recognized. That is, since the reflecting member is not disposed at a position corresponding to the pattern portion, even if the incident light from outside the legislation is reflected on the reflecting member, it is emitted in the direction of the non-pattern portion, so that the pattern portion can be prevented from being recognized by the external incident light.
  • the lighting apparatus can prevent the pattern portion from being visually recognized from the outside, thereby improving visibility.
  • the lighting apparatus according to the embodiment may omit a separate diffusion member by forming the pattern member with diffusion ink.
  • light may be diffused through the pattern member by omitting a separate diffusion member disposed between the light guide plate and the pattern member, and adding beads to scatter and diffuse light to the diffusion ink forming the pattern member. .
  • the lighting device according to the embodiment does not require a separate diffusion member, it is possible to reduce the overall thickness of the lighting device.
  • FIG. 1 is an exploded perspective view showing a lighting apparatus according to a first embodiment.
  • FIG. 2 is a sectional view showing the pattern member according to the first embodiment.
  • FIG 3 is a plan view showing a pattern member according to the first embodiment.
  • FIG. 4 is an exploded perspective view showing a lighting apparatus according to another first embodiment.
  • FIG. 5 is a cross-sectional view illustrating a cross section of a light emitting diode according to another first embodiment.
  • FIG. 6 is an exploded perspective view showing a lighting apparatus according to a second embodiment.
  • FIG. 7 is an exploded perspective view of the lighting apparatus according to the second embodiment.
  • FIG. 8 is a perspective view illustrating a light guide plate, a light source, and a reflective member according to the second embodiment.
  • FIG 9 is a cross-sectional view of a light guide plate, a light source, and a reflective member according to the second embodiment.
  • FIG. 10 is an exploded perspective view showing a lighting apparatus according to another second embodiment.
  • FIG. 11 illustrates a perspective view of a light guide plate, a light source, and a reflective member according to another second exemplary embodiment.
  • FIG. 12 illustrates a cross-sectional view of a light guide plate, a light source, and a reflective member according to another second embodiment.
  • FIG. 13 is an exploded perspective view showing a lighting apparatus according to another second embodiment.
  • FIG. 14 illustrates a perspective view of a light guide plate, a light source, and a reflective member according to still another exemplary embodiment.
  • FIG. 15 is a sectional view of a light guide plate, a light source, and a reflective member according to still another embodiment
  • 16 to 19 are diagrams for describing an example in which the lighting apparatus according to the embodiments is applied and operated in a vehicle.
  • the lighting device 1100 includes a cover case 100, a light guide plate 200, a light emitting member 300, a reflective member 400, and a pattern member 600. It may include.
  • the cover case 100 may have a shape in which an upper portion thereof is opened.
  • the cover case 100 may accommodate the light guide plate 200, the light emitting member 300, the reflective member 400, the pattern member 600, and the like.
  • the light guide plate 200 may be disposed in the cover case 100.
  • the light guide plate 200 may emit light incident from the light emitting member 300 upward through total reflection, refraction, and scattering.
  • the light emitting member 300 may generate light. That is, the light emitting member 300 may transmit light in the direction of the light guide plate.
  • the light emitting member 300 may be disposed on one side surface of the light guide plate 200.
  • the light emitting member 300 may generate light to allow light to enter the light guide plate 200 through a side surface of the light guide plate 200.
  • the light emitting member 300 may include a light source 310 and a light transmitting part 320.
  • the light source 310 may be connected to a power source to generate light energy.
  • the light source 300 may be any light source that can be generally used, such as an incandescent bulb, LED, lamp, mercury lamp, discharge tube, neon lamp, light bulb.
  • the light source 310 may be used in various colors according to the user's request, and the color of the light appearing in the light emitting unit may be variously changed according to the color of the light source.
  • the luminance value range (value on the basic BLU) of the light source 310 may have a value of 6,000 nit to 13,000 nit, and an optimal value corresponds to 9,000 nit.
  • the lower limit should be over 6,000 nits. This is because the fabric transmittance (about 5 to 10%) of the light source is 300 to 600 Cd / m 2 (nit), and at least 300 nit must be secured to ensure stable daytime visibility.
  • the upper limit should not exceed 13,000 nits. This is because the luminance value of the currently used LED BLU is approximately 12,000 nit, so that if it exceeds this, the heat generation problem becomes large.
  • the optimal range of the luminance value of the light source 310 is preferably set to a value of 6,000 nit to 10,000 nit. This is because, when the transmittance of the fabric is improved, an appropriate amount of light that can secure daytime visibility is around 6,000 nits, and as the amount of light increases, the readability can be improved, but at 10,000 nits or more, it may obstruct the driver's view. Therefore, the optimum value of the light source luminance value is 9,000 nits. This is because when the fabric and the warning light display film (photorealistic film) are applied, a light quantity of about 300 nits can be secured, and an appropriate value must be secured in consideration of the optimization of the fabric and the structure.
  • the light transmitting unit 320 may be connected to the light source 310 and disposed.
  • the light transmitting unit 320 may receive light emitted from the light source 310 and transmit light in one side direction of the light guide plate 200.
  • the light transmitting unit 320 may include a plurality of light transmitting units.
  • the light transmitting unit 320 may implement various numbers of the light transmitting units in consideration of the size of the lighting device, the amount of light emitted from the light source, and the like.
  • the plurality of light transmitting parts 320 may be spaced apart from each other. Alternatively, the plurality of light transmitting parts 320 may be disposed in contact with each other.
  • Light emitted from the light source 310 may be transmitted to the plurality of light transmitting parts 320, and light may be incident to one side of the light guide plate through the light transmitting parts.
  • the light transmitting unit 320 may be flexible.
  • the light transmitting part 320 may include plastic.
  • the light transmitting part 320 may be an optical fiber. That is, the light transmitting part 320 including the plurality of light transmitting parts may be an optical fiber bundle.
  • the light transmitting part 320 includes a flexible material, the light transmitting part 320 may be bent into the case and accommodated in the cover case 100.
  • the light transmitting part 320 may be spaced apart from the light guide plate 200. Alternatively, the light transmitting part 320 may be disposed in direct or indirect contact with the light guide plate 200 in whole or in part.
  • the position of the light source can be freely designed.
  • the present invention is not limited to the position of the light source, and may implement a lighting device capable of transmitting light to the light guide plate 200 through the light transmitting unit 320.
  • the reflective member 400 may be disposed under the light guide plate 200. In more detail, the reflective member 400 may be disposed between the light guide plate 200 and the bottom surface of the cover case 100. The reflective member 400 may reflect light emitted from the lower surface of the light guide plate 200 upward.
  • the pattern member 600 may be disposed on the reflective member 400.
  • the pattern member 600 may be disposed on the light guide plate 200.
  • the light guide plate 200 and the pattern member 600 may directly or indirectly contact each other.
  • the light guide plate 200 and the pattern member 600 may be adhered to each other through a transparent adhesive layer that may transmit light.
  • the pattern member 600 may include a base substrate 610 and a pattern layer 620 on the base substrate 610.
  • the pattern member 500 may be a printing sheet, and the pattern layer may be a layer formed by printing.
  • the base substrate 610 may include a transparent material.
  • the base substrate 610 may include a material such as polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • the pattern layer 620 may include a pattern portion PA and a non-pattern portion NPA.
  • the pattern part PA may be formed in a shape of a logo and / or an icon, and the shape of the pattern part PA may be visually recognized by light emitted from the bottom to the upper direction.
  • the pattern portion PA may transmit light, and the non-pattern portion NPA may not transmit light.
  • the pattern part PA and the non-pattern part NPA may be implemented in different colors.
  • the pattern part PA may be implemented using colored ink, and the non-pattern part NPA may be implemented using black or white ink or the like so as not to transmit light.
  • both the pattern portion PA and the non-pattern portion NPA may transmit light.
  • the light transmittance of the pattern portion PA may be relatively higher than the light transmittance of the non-pattern portion NPA to form the pattern portion PA and the non-pattern portion PA.
  • colored ink is used for the non-pattern portion NPA without using colored ink for the pattern portion PA, or colored ink is used for both the pattern portion PA and the non-pattern portion NPA.
  • the light transmittance of the pattern part PA increases the light transmittance of the non-pattern part NPA, the shape of the pattern part PA may be realized.
  • the pattern portion PA or the non-pattern portion NPA may include ink.
  • the pattern part PA may include an ink composition including a pigment and a scattering material. That is, the ink composition may be diffusion ink.
  • the ink composition may be formed by mixing the pigment and the scattering material.
  • the ink composition may be mixed by adding the pigment and the scattering material to a solvent containing alcohol or water.
  • a separate dispersant may be further included to uniformly disperse the scattering material in the solvent.
  • the pigment may be added to implement color in the ink composition.
  • the pigment may include pigments that implement various colors such as blue, yellow, or red depending on the color to be implemented in the pattern part PA.
  • the scattering material may comprise diffusion beads.
  • the scattering material may include diffusion beads of at least one of silicon dioxide (SiO 2) and titanium dioxide (TiO 2).
  • the pigment may be included by about 20% by weight to about 30% by weight based on the entirety of the ink composition. In detail, the pigment may be included in an amount of about 20 wt% to about 24 wt% based on the entirety of the ink composition.
  • the brightness of the color may be lowered to reduce the print quality, and when the pigment is greater than about 30% by weight, it may be seen that staining occurs and the print quality is lowered. .
  • the scattering material may be included by about 1% by weight to about 10% by weight based on the entirety of the ink composition. In detail, the scattering material may be included in an amount of about 1% by weight to about 9% by weight based on the entirety of the ink composition.
  • the scattering material When the scattering material is included in less than about 1% by weight based on the entirety of the ink composition, uniformity and diffusivity of the light passing through the light guide plate may be lowered, thereby lowering the overall brightness of the lighting apparatus. In addition, when the scattering material exceeds about 10% by weight based on the total ink composition, the uniformity and diffusivity are insignificant, and the mixing process efficiency may be reduced.
  • the illumination device can omit a separate diffusion member by forming the pattern member with diffusion ink.
  • light may be diffused through the pattern member by omitting a separate diffusion member disposed between the light guide plate and the pattern member, and adding beads to scatter and diffuse light to the diffusion ink forming the pattern member. .
  • the lighting device according to the embodiment does not require a separate diffusion member, it is possible to reduce the overall thickness of the lighting device.
  • the lighting apparatus according to the embodiment may be reduced in thickness by the thickness of the diffusion member, for example, about 100 ⁇ m to about 300 ⁇ m, thereby realizing a lighter structure of a slimmer structure.
  • a light source is disposed on the side of the light guide plate, a reflective sheet is disposed below the light guide plate, and a pattern member having a pattern portion is disposed on the light guide plate.
  • the pattern portion of the pattern member included a red pigment and silicon dioxide (SiO 2).
  • the red pigment was included by about 20% by weight
  • silicon dioxide was included by about 3% by weight.
  • the pattern portion was manufactured in the same manner as in Example 1, and then the printing quality and lighting device of the pattern portion according to the embodiment The luminance of was measured.
  • Luminance (cd / m2) Print quality Example 1 165.38 normal Example 2 162.15 normal Example 3 166.39 normal Comparative Example 1 327.55 Bad Comparative Example 2 319.75 Bad Comparative Example 3 322.67 Bad Comparative Example 4 163.18 Poor (staining) Comparative Example 5 134.91 normal Comparative Example 6 138.49 normal
  • the lighting apparatus according to the first embodiments is improved in print quality and brightness compared to the lighting apparatus according to the comparative examples.
  • the pigment when included by about 20 to 30% by weight, and the scattering material is included by about 1 to 10% by weight, it can be seen that the optimum print quality and brightness are realized.
  • the lighting apparatus according to the first embodiment does not require a separate diffusion member, thereby reducing the thickness of the lighting apparatus.
  • the lighting apparatus may include a cover case 100, a light guide plate 200, a light emitting member 300, a reflective member 400, and a pattern member 600. .
  • the light emitting member 300 may include light emitting diodes.
  • the light emitting diodes may be disposed on one side of the light guide plate 200.
  • the light emitting diodes may generate light to allow light to enter the light guide plate 200 through a side surface of the light guide plate 200.
  • the light emitting diodes may include a blue light emitting diode for generating blue light and / or a UV light emitting diode for generating ultraviolet light. That is, the light emitting diodes may generate blue light having a wavelength band between about 430 nm and about 470 nm or ultraviolet rays having a wavelength band between about 300 nm and about 400 nm.
  • the light emitting diodes may be mounted on a printed circuit board 350.
  • the light emitting diodes may be disposed under the printed circuit board 350.
  • the light emitting diodes may be driven by receiving a driving signal through the printed circuit board 350.
  • the printed circuit board 350 may be electrically connected to the light emitting diodes.
  • the printed circuit board 350 may mount the light emitting diodes.
  • the printed circuit board 350 may be disposed inside the cover case 100.
  • the light emitting diode may be a vertical light emitting diode.
  • the light emitting diode includes a conductive substrate 301, a reflective layer 302, a first conductive semiconductor layer 303, a second conductive semiconductor layer 304, an active layer 305, and a second electrode. It may include an electrode 306.
  • the conductive substrate 301 may include a conductor.
  • the conductive substrate 301 supports the reflective layer 302, the first conductive semiconductor layer 303, the second conductive semiconductor layer 304, the active layer 305, and the second electrode 306. can do.
  • the conductive substrate 301 may be connected to the first conductive semiconductor layer 303 through the reflective layer 302. That is, the conductive substrate 301 may be a first electrode for applying an electrical signal to the first conductive semiconductor layer 303.
  • the reflective layer 302 may be disposed on the conductive substrate 301.
  • the reflective layer 302 may reflect light emitted from the active layer 305 upwards.
  • the reflective layer 302 may be a conductive layer. Accordingly, the reflective layer 302 may connect the conductive substrate 301 to the first conductive semiconductor layer 303. Examples of the material used as the reflective layer 302 include a metal such as silver or aluminum.
  • the first conductivity type semiconductor layer 303 may be disposed on the reflective layer 302.
  • the first conductivity type semiconductor layer 303 may have a first conductivity type.
  • the first conductive semiconductor layer 303 may be an n-type semiconductor layer.
  • the first conductivity type semiconductor layer 303 may be an n-type GaN layer.
  • the second conductivity type semiconductor layer 304 may be disposed on the first conductivity type semiconductor layer 303.
  • the second conductive semiconductor layer 304 may face the first conductive semiconductor layer 303 and may be a p-type semiconductor layer.
  • the second conductivity type semiconductor layer 304 may be, for example, a p-type GaN layer.
  • the active layer 305 may be interposed between the first conductive semiconductor layer 303 and the second conductive semiconductor layer 304.
  • the active layer 305 may have a single quantum well structure or a multiple quantum well structure.
  • the active layer 305 may be formed with a period of an InGaN well layer and an AlGaN barrier layer or a period of an InGaN well layer and a GaN barrier layer, and the light emitting material of the active layer 305 may have an emission wavelength such as a blue wavelength, a red wavelength, or a green color. It may vary depending on the wavelength.
  • the second electrode 306 may be disposed on the second conductivity type semiconductor layer 304.
  • the second electrode 306 may be connected to the second conductivity type semiconductor layer 304.
  • the lighting apparatus may include a cover case 100, a light emitting member 300, a reflective member 400, and a pattern member 600.
  • the light emitting member 300 may be disposed above the reflective member 400.
  • the light emitting member 300 may be disposed between the reflective member 400 and the pattern member 600.
  • the light emitting member 300 may directly emit light in a direction in which the pattern member 600 is disposed. Also, the light reflected from the light emitting member 300 to the lower portion of the light emitting member may be emitted upward through the reflective member 400, that is, toward the pattern member 600.
  • the light emitting member 300 may include light emitting diodes.
  • the light emitting diodes may include a blue light emitting diode for generating blue light and / or a UV light emitting diode for generating ultraviolet light. That is, the light emitting diodes may generate blue light having a wavelength band between about 430 nm and about 470 nm or ultraviolet rays having a wavelength band between about 300 nm and about 400 nm.
  • the light emitting diodes may be mounted on a printed circuit board 350.
  • the light emitting diodes may be disposed under the printed circuit board 350.
  • the light emitting diodes may be driven by receiving a driving signal through the printed circuit board 350.
  • the printed circuit board 350 may be electrically connected to the light emitting diodes.
  • the printed circuit board 350 may mount the light emitting diodes.
  • the printed circuit board 350 may be disposed inside the cover case 100.
  • the lighting apparatus according to the second embodiments will be described with reference to FIGS. 7 to 15.
  • descriptions that are the same as or similar to those of the lighting apparatus according to the first embodiment will be omitted.
  • the same reference numerals are assigned to the same components as the lighting apparatus according to the first embodiment described above.
  • the lighting apparatus 1200 includes a cover case 100, a light guide plate 200, a light emitting member 300, a reflective member 400, a diffusion member 500, and the like.
  • the pattern member 600 may be included.
  • the light emitting member 300 includes a light source and a light transmitting unit, but the lighting apparatus according to the embodiment may include only the light source 310.
  • the light transmitting unit may be omitted, and a plurality of light sources may be directly mounted on the printed circuit board as shown in FIGS. 4 and 6, so that light may be emitted in a side or upward direction of the light guide plate.
  • the lighting apparatus according to the second embodiment may further include a diffusion member 500 unlike the lighting apparatus according to the first embodiment.
  • the position and shape of the reflective member 400 may be different.
  • the reflective member 400 will be described in detail below.
  • the diffusion member 500 may be disposed on the light guide plate 200.
  • the diffusion member 500 may be a diffusion sheet.
  • the diffusion member 500 may diffuse the light emitted toward the upper direction of the light guide plate 200 to improve the uniformity of the light passing through.
  • the diffusion member 500 may further include additional diffusion beads and the like to improve light diffusivity.
  • the pattern member 600 may be disposed on the diffusion member 500.
  • the second embodiment is not limited thereto, and the diffusion member may be omitted by providing a diffusion function on the pattern member 600 as in the first embodiment.
  • the overall thickness can be reduced.
  • the reflective member 400 may not overlap the pattern portion PA, but may overlap the non-pattern portion NPA.
  • the second reflective member 420 may not overlap the pattern part PA and the non-pattern part NPA.
  • the first reflective member 420 may partially overlap the non-pattern portion NPA without overlapping the pattern portion PA.
  • the arrangement position of the first reflective member 410 and the second reflective member 420 may not overlap with the arrangement position of the pattern part PA.
  • the pattern portion PA of the pattern 600 when light is not emitted from the light emitting member 300, it is possible to prevent the pattern portion PA of the pattern 600 from being visually recognized from the outside.
  • the position of the reflective member does not overlap with the position of the pattern part PA, when the power of the light source 310 is in an off state, that is, the pattern member 600.
  • the light incident from the outside of the lighting device into the inside of the lighting device is emitted upward by the reflecting member of the lighting device, thereby preventing the pattern portion from being recognized.
  • the lighting apparatus according to the embodiment can improve the overall visibility.
  • an optical member such as a prism sheet may be further disposed on the diffusion member 500.
  • an optical member such as a prism sheet may be further disposed between the diffusion member 500 and the pattern member 600.
  • the prism sheet may increase the straightness of the light passing through to improve the brightness of the lighting device.
  • the reflective member 400 may be disposed adjacent to the light guide plate 200.
  • the reflective member 400 may be in contact with the light guide plate 200.
  • the reflective member 400 may be disposed in direct or indirect contact with the light guide plate 200.
  • the reflective member 400 may be adhered to the light guide plate 200 through an adhesive layer.
  • the reflective member 400 may reflect light emitted from one surface of the light guide plate 200 upward.
  • the reflective member 400 may be disposed on at least one side of the light guide plate 200. In addition, the reflective member 400 may be disposed under the light emitting member 300 and the light guide plate 200.
  • the reflective member 400 may include a first reflective member 410 and a second reflective member 420.
  • the reflective member 400 may include a first reflective member 410 disposed below the light emitting member 300 and the light guide plate 200, and a second reflective member disposed on at least one side surface of the light guide plate 200. 420 may be included.
  • the second reflective member 420 may be disposed on at least one side of the side surfaces of the light guide plate 200.
  • the light guide plate 200 may include a first side surface 210 facing the light transmitting unit 320, a second side surface 220 opposite to the first side surface 210, and the first side surface 210.
  • the second reflective member 420 may be disposed on at least one side of the second side surface 220, the third side surface 230, and the fourth side surface 240.
  • the first reflective member 410 may be disposed under the light emitting member 300 and the light guide plate 200.
  • the first reflective member 410 may be disposed under the light transmitting part 320 and the light guide plate 200.
  • the first reflective member 410 may be disposed in direct or indirect contact with the light transmitting part 320 and the light guide plate 200.
  • the first reflective member 410 may be bonded to the light transmitting part 320 and the light guide plate 200 through an adhesive layer.
  • the first reflective member 410 may be disposed on the light guide plate 200, the light transmitting part 320, and the boundary surface BA of the light guide plate 200 and the light transmitting part 320. That is, the first reflective member 410 is disposed below the light guide plate 200 and the light transmission part 320 while covering the boundary surface BA of the light guide plate 200 and the light transmission part 320. Can be.
  • the first reflective member 410 covers the adhesive layer, and the light guide plate 200 and the light transmission unit And may be placed in contact with a portion of 320.
  • the first reflective member 410 and the second reflective member 420 may be spaced apart from each other. Alternatively, the first reflective member 410 and the second reflective member 420 may be disposed in contact with each other. For example, the first reflective member 410 and the second reflective member 420 may be integrally formed.
  • Light leaking through the side surface of the light guide plate 200 by the second reflective member 420 may be reflected into the light guide plate 200, and may be emitted toward the upper direction of the light guide plate.
  • the light emitted from the light emitting member 300 by the first reflecting member 410 reflects light leaking to the outside according to a change in refractive index between the light source and the light guide plate into the light guide plate 200, thereby Can exit in the upward direction.
  • light leakage may be reduced by the first reflecting member 410 and the second reflecting member 420 to improve the overall brightness of the lighting apparatus.
  • FIGS. 10 to 12 a lighting apparatus according to another exemplary embodiment will be described with reference to FIGS. 10 to 12.
  • the description of the same or similar components as those of the lighting apparatus according to the second embodiment will be omitted, and the same reference numerals are assigned to the same and similar components.
  • the reflective member 400 may be disposed under the light guide plate 200.
  • the reflective member 400 includes a first reflective member 410 disposed in contact with the light guide plate 200 and the light transmitting unit 320, and a third reflective member disposed on an edge surface of the lower surface of the light guide plate. 430).
  • the third reflective member 430 may be disposed on an edge surface of the light guide plate on the bottom surface of the light guide plate.
  • a lower surface of the light guide plate may include a first lower surface adjacent to the light transmitting part 320, a second lower surface opposite to the first lower surface, the first lower surface and the first lower surface, and It may include a third lower surface and a fourth lower surface connecting the second lower surface.
  • the third reflective member 430 may be disposed on at least one lower surface of the second lower surface, the third lower surface and the fourth lower surface.
  • the first reflective member 410 may be disposed in contact with the first lower surface of the light guide plate and the lower surface of the light transmitting part 320.
  • the first reflective member 410 may be disposed on the first lower surface of the light guide plate, the light transmitting part 320, and the boundary surface BA of the light guide plate 200 and the light transmitting part 320. have. That is, the first reflective member 410 covers the boundary surface BA of the light guide plate 200 and the light transmitting part 320, and the first lower surface of the light guide plate and the lower part of the light transmitting part 320. Can be placed in.
  • the first reflective member 410 covers the adhesive layer, and the first lower surface and the light of the light guide plate. It may be disposed in contact with a portion of the delivery unit 320.
  • the first reflective member 410 and the third reflective member 430 may be spaced apart from each other. Alternatively, the first reflective member 410 and the third reflective member 430 may be in contact with each other. For example, the first reflective member 410 and the third reflective member 430 may be integrally formed.
  • the light leaking through the lower surface of the light guide plate 200 by the third reflective member 430 may be reflected in the direction of the light guide plate 200, and may be emitted in an upper direction of the light guide plate.
  • the light emitted from the light emitting member 300 by the first reflecting member 410 reflects light leaking to the outside according to a change in refractive index between the light source and the light guide plate into the light guide plate 200, thereby Can exit in the upward direction.
  • light leakage may be reduced by the first reflective member 410 and the third reflective member 430, thereby improving overall brightness of the lighting apparatus.
  • the first reflective member 410 and the third reflective member 430 may not overlap with the pattern part PA, but may overlap with the non-pattern part NPA.
  • the first to fourth lower surfaces of the light guide plate on which the first reflecting member 410 and the third reflecting member 430 are disposed do not overlap with the pattern part PA, and the non-pattern part NPA. And can overlap.
  • the position of the lower surface of the light guide plate on which the first reflective member 410 and the third reflective member 430 are disposed may not overlap with the arrangement position of the pattern part PA.
  • the pattern portion PA of the pattern member 600 may be prevented from being recognized from the outside.
  • the position of the reflective member does not overlap with the position of the pattern part PA, when the power of the light source 310 is in an off state, that is, the pattern printing member 600.
  • the light incident from the outside of the lighting device into the lighting device is emitted upward by the reflecting member of the lighting device, thereby preventing the pattern portion from being recognized.
  • the lighting apparatus according to the second embodiment can improve the overall visibility.
  • FIGS. 13 to 15 a lighting apparatus according to another exemplary embodiment will be described with reference to FIGS. 13 to 15.
  • the description of the same or similar components as those of the lighting apparatus according to the second embodiment will be omitted, and the same reference numerals are assigned to the same or similar components.
  • a reflective member 400 may be disposed on the side and the bottom of the light guide plate 200.
  • the reflective member 400 includes a first reflective member 420 disposed in contact with the light guide plate 200 and the light transmitting part 320, and a second reflective member 400 disposed on at least one side surface of the light guide plate 200. It may include a reflective member 420 and a third reflective member 430 disposed on the edge surface of the lower portion of the light guide plate.
  • the lighting apparatus according to the third embodiment may include both the first to third reflective members of the first and second embodiments described above.
  • the pattern portion PA of the pattern member 600 may be prevented from being recognized from the outside.
  • the position of the reflective member does not overlap with the position of the pattern part PA, when the power of the light source 310 is in an off state, that is, the pattern member 600.
  • the light incident from the outside of the lighting device into the inside of the lighting device is emitted upward by the reflecting member of the lighting device, thereby preventing the pattern portion from being recognized.
  • the lighting apparatus according to the second embodiment can improve the overall visibility.
  • the lighting apparatus according to the embodiments may be applied to a vehicle by disposing a fabric member or the like on the pattern member of the lighting apparatus.
  • 16 to 19 are diagrams illustrating an example in which the lighting apparatus according to the embodiment is applied to a vehicle.
  • the lighting apparatus according to the embodiments may be applied to a vehicle.
  • the lighting apparatus according to the embodiments may be located inside the vehicle as shown in FIG. 16, and may be located anywhere that can be applied as the lighting apparatus inside or outside the vehicle.
  • the fabric member is disposed on the lighting apparatus according to the embodiments, when the lighting apparatus is in an off state, the pattern of the lighting apparatus may not be visually recognized from the outside.
  • the fabric member may be a light transmissive fabric.
  • the fabric member may transmit or transflect light.
  • the transmittance of the fabric member may be about 3% to 30%. If the transmittance of the fabric member is less than 3%, the brightness of the light source should be increased, so that reliability may be degraded due to heat generation. If the transmittance exceeds 30%, the back of the fabric is visually recognized. In detail, the transmittance of the fabric member may be about 5% to 15%. This is because visibility is lowered when the transmittance is less than 5%, and it is difficult to adjust the brightness of the lighting device when the transmittance is 20% or more.
  • the lighting apparatus may have a luminance of 200 to 600 nit in a state where the original member is disposed.
  • the luminance refers to the brightness of the lighting device, and the higher the luminance, the brighter the screen.
  • the weather is cloudy, at least 200 nits of daytime visibility, and if the weather is clear, at least 300 nits of daytime visibility should be secured.
  • the light emitting unit has a luminance exceeding 600 nits, it may interfere with the driver's field of view, and the heat generation of the light source may be excessively high. therefore,
  • the fabric member may include natural fibers such as cotton, hemp, wool, silk, asbestos, polyvinyl chloride, polyvinyl alcohol fiber, polyamide fiber, polyester fiber, acrylic fiber, nylon, polyethylene terephthalate, Polyacrylonitrile, polypropylene, polyurethane, polyalkylparaoxybenzoate, polytetrafluoroethylene, and the like, and all synthetic fibers that can be used generally.
  • natural fibers such as cotton, hemp, wool, silk, asbestos, polyvinyl chloride, polyvinyl alcohol fiber, polyamide fiber, polyester fiber, acrylic fiber, nylon, polyethylene terephthalate, Polyacrylonitrile, polypropylene, polyurethane, polyalkylparaoxybenzoate, polytetrafluoroethylene, and the like, and all synthetic fibers that can be used generally.
  • the lighting apparatus may determine on or off depending on whether the apparatus provided in the vehicle is used.
  • the light emitting unit may be turned on or off according to the opening and closing of the car door, and may be turned on or off depending on whether or not the seat belt of the vehicle is worn.
  • the lighting device 1000 may be on, periodically blink, or be turned off. It may be changed to the on) state, the lighting device may emit light according to a user-set operation.
  • the lighting apparatus 1000 may maintain an off state, and the lighting apparatus when the seat belt 272 is not worn.
  • the lighting apparatus may change to an on state, or the lighting apparatus may emit light according to an operation preset by the user. Therefore, the user can open the car door while driving or notice the seat belt non-wearing of the car at once, and can quickly establish a countermeasure thereof, which can be a great help in the safe driving of the car.
  • the general instrument panel can be easily noticed by the driver or assistant driver because of the small size of about a few cm, but the lighting device according to the embodiment can be implemented regardless of the size, there is an advantage that the user can easily grasp.
  • the touch panel may be coupled to perform an operation according to a touch function.
  • the lighting apparatus according to the embodiment may be disposed above or below the garnish.
  • the varnish may be a member disposed to have a sense of unity with the vehicle body in appearance of the inside and outside of the vehicle.
  • the lighting apparatus 1000 may be disposed between the lower varnish 2100 and the upper varnish 2200.
  • the lower varnish 2100 and the upper varnish 2200 may include plastic.
  • the lower varnish 2100 and the upper varnish 2200 may be flexible.
  • the lower varnish 2100 and the upper varnish 2200 may include curved surfaces.
  • the lighting apparatus according to the embodiment may be disposed at the bottom of the upper varnish, without a separate lower varnish.
  • the upper varnish can be translucent or transparent.
  • the fabric member of the embodiment may be disposed on the upper varnish.
  • the fabric member may be omitted and the light transmittance of the upper varnish may be 3% to 30%.
  • a touch panel 3000 including a touch electrode performing a touch function may be disposed above or below the lighting device.
  • the touch panel 3000 may be disposed at a position corresponding to the lighting apparatus 1000.
  • the touch panel may be disposed directly above or below the lighting device, or may be disposed below the upper garnish 2200.
  • various operations such as an on / off function of the lighting device may be performed.

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Abstract

A lighting apparatus according to an embodiment comprises: a light guide plate; a light emitting member arranged on one side surface of the light guide plate; a pattern member arranged above the light guide plate; and a reflecting member arranged under the light guide plate. The pattern member comprises a base substrate and a pattern layer on the base substrate, wherein the pattern layer comprises a pattern portion and a non-pattern portion, and the pattern portion comprises a pigment and a scattering material.

Description

조명 장치Lighting device
실시예는 조명 장치에 관한 것이다.Embodiments relate to a lighting device.
면 조명은 여러 분야에서 다양한 제품에 이용된다. 예를 들어, 색감이 중요한 화실이나 박물관 등의 장소, 시각적인 효과가 중요한 거실이나 주방 또는 음식점 등의 장소, 자동차나 버스 등 차량 내부의 면 조명, 상업용 건물 조명의 레스토랑/백화점/전시점/편의점 등의 장소에 형광등이나 일반적인 조명 장치를 대신하여 인테리어적인 측면에서 사용할 수 있다.Surface lighting is used in a variety of products in many fields. For example, a space such as a studio or a museum where color is important, a living room or a kitchen or a restaurant where visual effects are important, a surface light inside a vehicle such as a car or a bus, or a restaurant / department / exhibition / convenience store in a commercial building light. It can be used internally in place of fluorescent light or general lighting device in the place of light.
이러한 면 조명은, 광원으로부터 출사되는 광을 도광판 및 확산 시트를 통해, 상기 광원으로부터 출사되는 광은 수직 방향으로 출사될 수 있다.In this surface illumination, the light emitted from the light source may be emitted in the vertical direction through the light guide plate and the diffusion sheet.
이러한 면 조명 상에 패턴 등을 형성하여, 외부에서 상기 광원에서 출사되는 광에 의해 패턴을 시인할 수 있게 함으로써, 다양한 분야에 적용될 수 있다.By forming a pattern or the like on the surface illumination, the pattern can be recognized by the light emitted from the light source from the outside, it can be applied to various fields.
이때, 광원이 출사되지 않는 경우에도, 외부 또는 내부의 광이 면 조명 상으로 입사되고, 이러한 광이 반사판으로부터 반사되면서, 광원이 출사되지 않는 경우에도, 외부에서 패턴이 시인될 수 있는 문제점이 있다.At this time, even when the light source is not emitted, the external or internal light is incident on the surface illumination, the light is reflected from the reflecting plate, even if the light source is not emitted, there is a problem that the pattern can be seen from the outside. .
또한, 이러한 면 조명을 구현하기 위해서는, 광원에서 출사되는 광을 상방으로 균일하게 출사하기 위해, 도광판, 확산 시트 등의 다양한 광학 시트들이 요구된다.In addition, in order to realize such surface illumination, various optical sheets such as a light guide plate and a diffusion sheet are required to uniformly emit light emitted from the light source upwardly.
그러나, 상기 광학 시트들에 의해 조명 장치의 전체적인 두께가 증가되어 곡면 등 자유로운 디자인을 구현하기 어려우며, 상기 다수의 광학 시트로 인해 광 손실이 발생하여 휘도가 낮아지는 문제점이 있다. However, since the overall thickness of the lighting device is increased by the optical sheets, it is difficult to implement a free design, such as a curved surface, and light loss occurs due to the plurality of optical sheets, thereby lowering luminance.
따라서, 상기와 같은 문제점을 해결할 수 있는 조명 장치가 요구된다.Therefore, there is a need for a lighting device that can solve the above problems.
실시예는 자유로운 디자인 구현이 가능하도록 슬림한 두께 및 높은 휘도를 구현할 수 있고, 향상된 시인성을 가지는 조명 장치를 제공하고자 한다.The embodiment can implement a slim thickness and high brightness to enable a free design, and to provide a lighting device having improved visibility.
실시예에 따른 조명 장치는, 도광판; 상기 도광판의 일 측면 상에 배치되는 발광 부재; 상기 도광판 상부에 배치되는 패턴 부재; 및 상기 도광판 하부에 배치되는 반사 부재를 포함하고, 상기 패턴부재는 베이스 기판 및 상기 베이스 기판 상의 패턴층을 포함하고, 상기 패턴층은 패턴부 및 비패턴부를 포함하고, 상기 패턴부는 안료 및 산란 물질을 포함한다.Lighting device according to the embodiment, the light guide plate; A light emitting member disposed on one side of the light guide plate; A pattern member disposed on the light guide plate; And a reflective member disposed below the light guide plate, wherein the pattern member includes a base substrate and a pattern layer on the base substrate, the pattern layer includes a pattern portion and a non-pattern portion, and the pattern portion includes a pigment and a scattering material. It includes.
또한, 실시예에 따른 조명 장치는 인쇄 부재의 패턴부와 비패턴부의 위치를 고려하여 반사 부재를 배치할 수 있다.In addition, the lighting apparatus according to the embodiment may arrange the reflective member in consideration of the position of the pattern portion and the non-pattern portion of the printing member.
자세하게, 실시예에 따른 조명 장치는 상기 반사 부재를 인쇄 부재의 패턴부에는 중첩되지 않게 배치할 수 있다.In detail, the lighting apparatus according to the embodiment may arrange the reflective member so as not to overlap the pattern portion of the printing member.
이에 따라, 상기 조명 장치의 전원이 오프 상태일 때, 조명 장치 외부로 입사된 광이 반사 부재에 의해 반사되어 패턴부가 시인되는 것을 방지할 수 있다. 즉, 반사 부재가 패턴부와 대응되는 위치에는 배치되지 않으므로, 반사 부재에 의회 외부의 입사광이 반사되어도 비패턴부 방향으로 출사되므로, 외부 입사광에 의해 패턴부가 시인되는 것을 방지할 수 있다.Accordingly, when the power of the lighting device is turned off, light incident to the outside of the lighting device may be reflected by the reflecting member to prevent the pattern portion from being visually recognized. That is, since the reflecting member is not disposed at a position corresponding to the pattern portion, even if the incident light from outside the parliament is reflected on the reflecting member, it is emitted in the direction of the non-pattern portion, so that the pattern portion can be prevented from being recognized by the external incident light.
따라서, 실시예에 따른 조명 장치는 외부에서 패턴부가 시인되는 것을 방지할 수 있어, 시인성을 향상시킬 수 있다.Accordingly, the lighting apparatus according to the embodiment can prevent the pattern portion from being visually recognized from the outside, thereby improving visibility.
실시예에 따른 조명 장치는 패턴 부재를 확산 잉크로 형성함으로써, 별도의 확산 부재를 생략할 수 있다.The lighting apparatus according to the embodiment may omit a separate diffusion member by forming the pattern member with diffusion ink.
자세하게, 상기 도광판 및 상기 패턴 부재 사이에 배치되는 별도의 확산 부재를 생략하고, 패턴 부재를 형성하는 확산 잉크에 광을 산란 및 확산하는 비드를 첨가함으로써, 상기 패턴 부재를 통해 광이 확산될 수 있다.In detail, light may be diffused through the pattern member by omitting a separate diffusion member disposed between the light guide plate and the pattern member, and adding beads to scatter and diffuse light to the diffusion ink forming the pattern member. .
이에 따라, 실시예에 따른 조명 장치는 별도의 확산 부재가 요구되지 않으므로, 조명 장치의 전체적인 두께를 감소시킬 수 있다.Accordingly, the lighting device according to the embodiment does not require a separate diffusion member, it is possible to reduce the overall thickness of the lighting device.
도 1은 제 1 실시예에 따른 조명 장치를 도시한 분해 사시도이다.1 is an exploded perspective view showing a lighting apparatus according to a first embodiment.
도 2는 제 1 실시예에 따른 패턴 부재의 단면도를 도시한 도면이다.2 is a sectional view showing the pattern member according to the first embodiment.
도 3은 제 1 실시예에 따른 패턴 부재의 평면도를 도시한 도면이다.3 is a plan view showing a pattern member according to the first embodiment.
도 4는 다른 제 1 실시예에 따른 조명 장치를 도시한 분해 사시도이다.4 is an exploded perspective view showing a lighting apparatus according to another first embodiment.
도 5는 다른 제 1 실시예에 따른 발광다이오드의 일 단면을 도시한 단면도이다.5 is a cross-sectional view illustrating a cross section of a light emitting diode according to another first embodiment.
도 6은 또 다른 제 2 실시예에 따른 조명 장치를 도시한 분해 사시도이다.6 is an exploded perspective view showing a lighting apparatus according to a second embodiment.
도 7은 제 2 실시예에 따른 조명 장치를 도시한 분해 사시도이다.7 is an exploded perspective view of the lighting apparatus according to the second embodiment.
도 8은 제 2 실시예에 따른 도광판, 광원, 반사 부재의 사시도를 도시한 도면이다.8 is a perspective view illustrating a light guide plate, a light source, and a reflective member according to the second embodiment.
도 9는 제 2 실시예에 따른 도광판, 광원, 반사 부재의 단면도를 도시한 도면이다.9 is a cross-sectional view of a light guide plate, a light source, and a reflective member according to the second embodiment.
도 10은 다른 제 2 실시예에 따른 조명 장치를 도시한 분해 사시도이다.10 is an exploded perspective view showing a lighting apparatus according to another second embodiment.
도 11은 다른 제 2 실시예에 따른 도광판, 광원, 반사 부재의 사시도를 도시한 도면이다.FIG. 11 illustrates a perspective view of a light guide plate, a light source, and a reflective member according to another second exemplary embodiment.
도 12는 다른 제 2 실시예에 따른 도광판, 광원, 반사 부재의 단면도를 도시한 도면이다.12 illustrates a cross-sectional view of a light guide plate, a light source, and a reflective member according to another second embodiment.
도 13은 또 다른 제 2 실시예에 따른 조명 장치를 도시한 분해 사시도이다.13 is an exploded perspective view showing a lighting apparatus according to another second embodiment.
도 14는 또 다른 제 2 실시예에 따른 도광판, 광원, 반사 부재의 사시도를 도시한 도면이다.FIG. 14 illustrates a perspective view of a light guide plate, a light source, and a reflective member according to still another exemplary embodiment.
도 15는 또 다른 제 2 실시예에 따른 도광판, 광원, 반사 부재의 단면도를 도시한 도면이다.FIG. 15 is a sectional view of a light guide plate, a light source, and a reflective member according to still another embodiment; FIG.
도 16 내지 도 19는 실시예들에 따른 조명 장치가 차량에 적용되어 동작하는 일례를 설명하기 위한 도면들이다.16 to 19 are diagrams for describing an example in which the lighting apparatus according to the embodiments is applied and operated in a vehicle.
이하, 도 1 내지 도 6을 참조하여, 제 1 실시예들에 따른 조명 장치를 설명한다.Hereinafter, the lighting apparatus according to the first embodiments will be described with reference to FIGS. 1 to 6.
도 1 내지 도 3을 참조하면, 제 1 실시예에 따른 조명 장치(1100)는, 커버 케이스(100), 도광판(200), 발광 부재(300), 반사 부재(400) 및 패턴 부재(600)를 포함할 수 있다.1 to 3, the lighting device 1100 according to the first embodiment includes a cover case 100, a light guide plate 200, a light emitting member 300, a reflective member 400, and a pattern member 600. It may include.
상기 커버 케이스(100)는 상부가 개구된 형상을 가질 수 있다. 상기 커버 케이스(100)는 상기 도광판(200), 상기 발광 부재(300), 상기 반사 부재(400) 및 상기 패턴 부재(600) 등을 수용할 수 있다.The cover case 100 may have a shape in which an upper portion thereof is opened. The cover case 100 may accommodate the light guide plate 200, the light emitting member 300, the reflective member 400, the pattern member 600, and the like.
상기 도광판(200)은 상기 커버 케이스(100) 내에 배치될 수 있다. 상기 도광판(200)은 상기 발광 부재(300)로부터 입사되는 광을 전반사, 굴절 및 산란을 통하여 상방으로 출사할 수 있다.The light guide plate 200 may be disposed in the cover case 100. The light guide plate 200 may emit light incident from the light emitting member 300 upward through total reflection, refraction, and scattering.
상기 발광 부재(300)는 광을 발생시킬 수 있다. 즉, 상기 발광 부재(300)는 상기 도광판 방향으로 광을 전달할 수 있다. 상기 발광 부재(300)는 상기 도광판(200)의 일 측면 상에 배치될 수 있다. 상기 발광 부재(300)는 광을 발생시켜서, 상기 도광판(200)의 측면을 통해 상기 도광판(200)으로 광을 입사시킬 수 있다.The light emitting member 300 may generate light. That is, the light emitting member 300 may transmit light in the direction of the light guide plate. The light emitting member 300 may be disposed on one side surface of the light guide plate 200. The light emitting member 300 may generate light to allow light to enter the light guide plate 200 through a side surface of the light guide plate 200.
상기 발광 부재(300)는 광원(310) 및 광 전달부(320)를 포함할 수 있다.The light emitting member 300 may include a light source 310 and a light transmitting part 320.
상기 광원(310)은 전원과 연결되어 광 에너지를 생성할 수 있다. 상기 광원(300)은 백열 전구, LED, 램프, 수은 램프, 방전관, 네온 램프, 전구 등 일반적으로 사용될 수 있는 모든 광원이 사용될 수 있다. 상기 광원(310)은 사용자의 요구에 따라서 여러 가지 색상이 사용될 수 있으며, 광원의 색 변화에 따라서 발광부에 나타나는 빛의 색상도 다양하게 변화할 수 있다.The light source 310 may be connected to a power source to generate light energy. The light source 300 may be any light source that can be generally used, such as an incandescent bulb, LED, lamp, mercury lamp, discharge tube, neon lamp, light bulb. The light source 310 may be used in various colors according to the user's request, and the color of the light appearing in the light emitting unit may be variously changed according to the color of the light source.
상기 광원(310)의 휘도값 범위(기본 BLU상에서의 값)은 6,000nit에서 13,000nit의 값을 가질 수 있으며, 최적의 값은 9,000nit에 해당한다. 주간 시인성을 고려할 때, 하한값은 6,000nit 이상 확보하여야 한다. 이는 광원의 원단 투과율(약 5~10%)을 적용하면 300~600Cd/m2(nit)가 되고, 최소한 300nit 이상을 확보하여야 주간 시인성이 안정적이기 때문이다. 또한, 발열을 고려할 때, 상한값은 13,000nit을 초과해서는 안된다. 이는, 현재 일반적으로 사용되는 LED BLU의 휘도값이 대략 12,000nit이므로 이를 초과하게 되면 발열 문제가 커지게 되기 때문이다. The luminance value range (value on the basic BLU) of the light source 310 may have a value of 6,000 nit to 13,000 nit, and an optimal value corresponds to 9,000 nit. Considering daytime visibility, the lower limit should be over 6,000 nits. This is because the fabric transmittance (about 5 to 10%) of the light source is 300 to 600 Cd / m 2 (nit), and at least 300 nit must be secured to ensure stable daytime visibility. In addition, considering the exotherm, the upper limit should not exceed 13,000 nits. This is because the luminance value of the currently used LED BLU is approximately 12,000 nit, so that if it exceeds this, the heat generation problem becomes large.
또한, 상기 광원(310) 휘도값의 최적 범위는 6,000nit에서 10,000nit의 값으로 설정하는 것이 바람직하다. 이는, 원단 투과율을 향상하는 경우 주간 시인성을 확보할 수 있는 적정 광량이 6,000nit 전후이기 때문이며, 광량이 높아질수록 가독성의 향상이 가능하지만 10,000nit 이상에서는 운전자의 시야를 방해할 수 있기 때문이다. 따라서, 광원 휘도값의 최적 값은 9,000nit이다. 이는 원단과 경고등 표시 필름(실사필름)을 적용하는 경우, 약 300nit의 광량을 확보할 수 있으며, 원단 및 구조의 최적화를 고려하여 적절한 값을 확보하여야 하기 때문이다. In addition, the optimal range of the luminance value of the light source 310 is preferably set to a value of 6,000 nit to 10,000 nit. This is because, when the transmittance of the fabric is improved, an appropriate amount of light that can secure daytime visibility is around 6,000 nits, and as the amount of light increases, the readability can be improved, but at 10,000 nits or more, it may obstruct the driver's view. Therefore, the optimum value of the light source luminance value is 9,000 nits. This is because when the fabric and the warning light display film (photorealistic film) are applied, a light quantity of about 300 nits can be secured, and an appropriate value must be secured in consideration of the optimization of the fabric and the structure.
상기 광 전달부(320)는 상기 광원(310)과 연결되며 배치될 수 있다. 상기 광 전달부(320)는 상기 광원(310)에서 출사되는 광을 전달받아, 상기 도광판(200)의 일측면 방향으로 광을 전달할 수 있다.The light transmitting unit 320 may be connected to the light source 310 and disposed. The light transmitting unit 320 may receive light emitted from the light source 310 and transmit light in one side direction of the light guide plate 200.
도 1 및 도 2를 참조하면, 상기 광 전달부(320)는 복수 개의 광 전달부들을 포함할 수 있다. 자세하게, 상기 광 전달부(320)는 조명 장치의 크기, 광원에서 출사되는 광량 등을 고려하여, 광 전달부의 수를 다양하게 구현할 수 있다.1 and 2, the light transmitting unit 320 may include a plurality of light transmitting units. In detail, the light transmitting unit 320 may implement various numbers of the light transmitting units in consideration of the size of the lighting device, the amount of light emitted from the light source, and the like.
상기 복수 개의 광 전달부(320)들은 서로 이격하여 배치될 수 있다. 또는, 상기 복수 개의 광 전달부(320)들은 서로 접촉하며 배치될 수 있다.The plurality of light transmitting parts 320 may be spaced apart from each other. Alternatively, the plurality of light transmitting parts 320 may be disposed in contact with each other.
상기 광원(310)에서 출사되는 광은 상기 복수 개의 광 전달부(320)들로 전달되고, 각각의 광 전달부들을 통해 상기 도광판의 일 측면으로 광이 입사될 수 있다.Light emitted from the light source 310 may be transmitted to the plurality of light transmitting parts 320, and light may be incident to one side of the light guide plate through the light transmitting parts.
상기 광 전달부(320)는 플렉서블할 수 있다. 상기 광 전달부(320)는 플라스틱을 포함할 수 있다. 예를 들어, 상기 광 전달부(320)는 광 섬유일 수 있다. 즉, 상기 복수 개의 광 전달부들을 포함하는 상기 광 전달부(320)는 광 섬유 다발일 수 있다.The light transmitting unit 320 may be flexible. The light transmitting part 320 may include plastic. For example, the light transmitting part 320 may be an optical fiber. That is, the light transmitting part 320 including the plurality of light transmitting parts may be an optical fiber bundle.
상기 광 전달부(320)는 플렉서블한 물질을 포함하므로, 상기 케이스 내측으로 벤딩되어, 상기 커버 케이스(100) 내부에 수용될 수 있다.Since the light transmitting part 320 includes a flexible material, the light transmitting part 320 may be bent into the case and accommodated in the cover case 100.
상기 광 전달부(320)는 상기 도광판(200)과 이격하여 배치될 수 있다. 또는, 상기 광 전달부(320)는 상기 도광판(200)과 전체 또는 부분적으로 직접 또는 간접적으로 접촉하며 배치될 수 있다.The light transmitting part 320 may be spaced apart from the light guide plate 200. Alternatively, the light transmitting part 320 may be disposed in direct or indirect contact with the light guide plate 200 in whole or in part.
이에 따라, 상기 커버 케이스(100)가 3차원 등의 다양한 형상을 가지더라도, 광원의 위치를 자유롭게 디자인할 수 있다. 또한, 상기 광원의 위치에 제한되지 않고, 상기 광 전달부(320)를 통해 상기 도광판(200)으로 광을 전달할 수 있는 조명 장치를 구현할 수 있다.Accordingly, even if the cover case 100 has various shapes such as three-dimensional, the position of the light source can be freely designed. In addition, the present invention is not limited to the position of the light source, and may implement a lighting device capable of transmitting light to the light guide plate 200 through the light transmitting unit 320.
상기 반사 부재(400)는 상기 도광판(200) 아래에 배치될 수 있다. 더 자세하게, 상기 반사 부재(400)는 상기 도광판(200) 및 상기 커버 케이스(100)의 바닥면 사이에 배치될 수 있다. 상기 반사 부재(400)는 상기 도광판(200)의 하부면으로부터 출사되는 광을 상방으로 반사시킬 수 있다The reflective member 400 may be disposed under the light guide plate 200. In more detail, the reflective member 400 may be disposed between the light guide plate 200 and the bottom surface of the cover case 100. The reflective member 400 may reflect light emitted from the lower surface of the light guide plate 200 upward.
상기 패턴 부재(600)는 상기 반사 부재(400) 상에 배치될 수 있다. 자세하게, 상기 패턴 부재(600)는 상기 도광판(200) 상부에 배치될 수 있다. 상기 도광판(200) 및 상기 패턴 부재(600)는 직접 또는 간접적으로 접촉될 수 있다. 예를 들어, 상기 도광판(200) 및 상기 패턴 부재(600)는 광을 투과할 수 있는 투명 접착층 등을 통해 서로 접착될 수 있다.The pattern member 600 may be disposed on the reflective member 400. In detail, the pattern member 600 may be disposed on the light guide plate 200. The light guide plate 200 and the pattern member 600 may directly or indirectly contact each other. For example, the light guide plate 200 and the pattern member 600 may be adhered to each other through a transparent adhesive layer that may transmit light.
상기 패턴 부재(600)는 베이스 기판(610) 및 상기 베이스 기판(610) 상의 패턴층(620)을 포함할 수 있다. 상기 패턴 부재(500)는 인쇄시트일 수 있고, 상기 패턴층은 인쇄로 형성된 층일 수 있다.The pattern member 600 may include a base substrate 610 and a pattern layer 620 on the base substrate 610. The pattern member 500 may be a printing sheet, and the pattern layer may be a layer formed by printing.
상기 패턴층을 인쇄로 형성함으로써, 종래 백라이트 유닛에 사용되는 확산판이나 프리즘 시트에서 구현할 수 없었던 하기에 설명하는 아이콘 및/또는 로고 등의 다양한 패턴을 구현할 수 있다.By forming the pattern layer by printing, various patterns such as icons and / or logos described below, which could not be realized in the diffusion plate or prism sheet used in the conventional backlight unit, can be realized.
상기 베이스 기판(610)은 투명 물질을 포함할 수 있다. 예를 들어, 상기 베이스 기판(610)은 폴리에텔렌테레프탈레이트(PET) 등의 물질을 포함할 수 있다.The base substrate 610 may include a transparent material. For example, the base substrate 610 may include a material such as polyethylene terephthalate (PET).
상기 패턴층(620)은 패턴부(PA) 및 비패턴부(NPA)를 포함할 수 있다. 상기 패턴부(PA)는 로고 및/또는 아이콘 등의 형상으로 형성될 수 있으며, 하부에서 상부 방향으로 출사되는 광에 의해 외부에서 상기 패턴부(PA)의 형상을 시인할 수 있다.The pattern layer 620 may include a pattern portion PA and a non-pattern portion NPA. The pattern part PA may be formed in a shape of a logo and / or an icon, and the shape of the pattern part PA may be visually recognized by light emitted from the bottom to the upper direction.
상기 패턴부(PA)는 광을 투과할 수 있고, 상기 비패턴부(NPA)는 광이 투과되지 않을 수 있다. 또한, 상기 패턴부(PA) 및 상기 비패턴부(NPA)는 서로 다른 색으로 구현될 수 있다. 예를 들어, 상기 패턴부(PA)는 유색 잉크를 사용하여 구현될 수 있고, 상기 비패턴부(NPA)는 광이 투과되지 않도록 블랙 또는 화이트 잉크 등을 사용하여 구현될 수 있다.The pattern portion PA may transmit light, and the non-pattern portion NPA may not transmit light. In addition, the pattern part PA and the non-pattern part NPA may be implemented in different colors. For example, the pattern part PA may be implemented using colored ink, and the non-pattern part NPA may be implemented using black or white ink or the like so as not to transmit light.
이에 따라, 투과 및 차광의 효과 뿐만 아니라 심미적인 효과를 높일 수 있는 다양한 색감을 구현함으로써, 차량 및 실내/외 조명으로 다양하게 활용할 수 있다.Accordingly, by implementing a variety of colors that can enhance the aesthetic effect as well as the effects of transmission and shading, it can be used in a variety of vehicles and indoor / outdoor lighting.
또한, 상기 패턴부(PA) 및 상기 비패턴부(NPA) 모두 광을 투과할 수 있다. 상기 패턴부(PA)의 광 투과율이 상기 비패턴부(NPA)의 광투과율보다 상대적으로 높게하여 상기 패턴부(PA) 및 상기 비패턴부(PA)를 형성할 수 있다. 예를 들어 상기 패턴부(PA)에 유색잉크를 사용하지 않고 상기 비패턴부(NPA)에 유색 잉크를 사용하거나, 상기 패턴부(PA) 및 상기 비패턴부(NPA)에 모두 유색 잉크를 사용하면서 상기 패턴부(PA)의 광 투과율이 상기 비패턴부(NPA)의 광 투광율을 높게 하여 패턴부(PA) 형상을 구현할 수 있다.In addition, both the pattern portion PA and the non-pattern portion NPA may transmit light. The light transmittance of the pattern portion PA may be relatively higher than the light transmittance of the non-pattern portion NPA to form the pattern portion PA and the non-pattern portion PA. For example, colored ink is used for the non-pattern portion NPA without using colored ink for the pattern portion PA, or colored ink is used for both the pattern portion PA and the non-pattern portion NPA. While the light transmittance of the pattern part PA increases the light transmittance of the non-pattern part NPA, the shape of the pattern part PA may be realized.
상기 패턴부(PA) 또는 비패턴부(NPA)는 잉크를 포함할 수 있다. 상기 패턴부(PA)는 안료 및 산란 물질을 포함하는 잉크 조성물을 포함할 수 있다. 즉, 상기 잉크 조성물은 확산 잉크일 수 있다.The pattern portion PA or the non-pattern portion NPA may include ink. The pattern part PA may include an ink composition including a pigment and a scattering material. That is, the ink composition may be diffusion ink.
상기 잉크 조성물은 상기 안료 및 상기 산란 물질을 혼합하여 형성될 수 있다. 예를 들어, 상기 잉크 조성물은 알코올계 또는 물을 포함하는 용매에 상기 안료 및 상기 산란 물질을 투입하여 혼합될 수 있다. 또한, 상기 산란 물질을 상기 용매 내에 균일하게 분산시키기 위해 별도의 분산제가 더 포함될 수 있다.The ink composition may be formed by mixing the pigment and the scattering material. For example, the ink composition may be mixed by adding the pigment and the scattering material to a solvent containing alcohol or water. In addition, a separate dispersant may be further included to uniformly disperse the scattering material in the solvent.
상기 안료는 상기 잉크 조성물에 색을 구현하기 위해 투입될 수 있다. 예를 들어, 상기 안료는 상기 패턴부(PA)에 구현하고자 하는 색에 따라 청색, 노란색 또는 빨간색 등 다양한 색을 구현하는 안료들을 포함할 수 있다.The pigment may be added to implement color in the ink composition. For example, the pigment may include pigments that implement various colors such as blue, yellow, or red depending on the color to be implemented in the pattern part PA.
상기 산란 물질은 확산 비드를 포함할 수 있다. 예를 들어, 상기 산란 물질은 이산화규소(SiO2) 및 이산화티탄(TiO2) 중 적어도 하나의 확산 비드를 포함할 수 있다.The scattering material may comprise diffusion beads. For example, the scattering material may include diffusion beads of at least one of silicon dioxide (SiO 2) and titanium dioxide (TiO 2).
상기 안료는 상기 잉크 조성물 전체에 대해 약 20 중량% 내지 약 30 중량% 만큼 포함될 수 있다. 자세하게, 상기 안료는 상기 잉크 조성물 전체에 대해 약 20 중량% 내지 약 24 중량% 만큼 포함될 수 있다.The pigment may be included by about 20% by weight to about 30% by weight based on the entirety of the ink composition. In detail, the pigment may be included in an amount of about 20 wt% to about 24 wt% based on the entirety of the ink composition.
상기 안료가 약 20 중량% 미만인 경우, 색의 밝기가 저하되어 인쇄 품질이 저하될 수 있고, 상기 안료가 약 30 중량%를 초과하는 경우, 얼룩 등이 발생하여 인쇄 품질이 저하되는 것을 알 수 있다.When the pigment is less than about 20% by weight, the brightness of the color may be lowered to reduce the print quality, and when the pigment is greater than about 30% by weight, it may be seen that staining occurs and the print quality is lowered. .
또한, 상기 산란 물질은 상기 잉크 조성물 전체에 대해 약 1 중량% 내지 약 10 중량% 만큼 포함될 수 있다. 자세하게, 상기 산란 물질은 상기 잉크 조성물 전체에 대해 약 1 중량% 내지 약 9 중량% 만큼 포함될 수 있다.In addition, the scattering material may be included by about 1% by weight to about 10% by weight based on the entirety of the ink composition. In detail, the scattering material may be included in an amount of about 1% by weight to about 9% by weight based on the entirety of the ink composition.
상기 산란 물질이 상기 잉크 조성물 전체에 대해 약 1 중량% 미만으로 포함되는 경우, 상기 도광판을 통과하는 광의 균일도 및 확산성이 저하되어 조명 장치의 전체적인 휘도가 저하될 수 있다. 또한, 상기 산란 물질이 상기 잉크 조성물 전체에 대해 약 10 중량%을 초과하는 경우 균일도 및 확산성에 영향이 미미하며, 혼합 공정 효율이 저하될 수 있다.When the scattering material is included in less than about 1% by weight based on the entirety of the ink composition, uniformity and diffusivity of the light passing through the light guide plate may be lowered, thereby lowering the overall brightness of the lighting apparatus. In addition, when the scattering material exceeds about 10% by weight based on the total ink composition, the uniformity and diffusivity are insignificant, and the mixing process efficiency may be reduced.
제 1 실시예에 따른 조명 장치는 패턴 부재를 확산 잉크로 형성함으로써, 별도의 확산 부재를 생략할 수 있다.The illumination device according to the first embodiment can omit a separate diffusion member by forming the pattern member with diffusion ink.
자세하게, 상기 도광판 및 상기 패턴 부재 사이에 배치되는 별도의 확산 부재를 생략하고, 패턴 부재를 형성하는 확산 잉크에 광을 산란 및 확산하는 비드를 첨가함으로써, 상기 패턴 부재를 통해 광이 확산될 수 있다.In detail, light may be diffused through the pattern member by omitting a separate diffusion member disposed between the light guide plate and the pattern member, and adding beads to scatter and diffuse light to the diffusion ink forming the pattern member. .
이에 따라, 실시예에 따른 조명 장치는 별도의 확산 부재가 요구되지 않으므로, 조명 장치의 전체적인 두께를 감소시킬 수 있다.Accordingly, the lighting device according to the embodiment does not require a separate diffusion member, it is possible to reduce the overall thickness of the lighting device.
자세하게, 실시예에 따른 조명 장치는 상기 확산 부재의 두께 예를 들어, 약 100㎛ 내지 약 300㎛의 두께만큼 두께가 감소될 수 있으며, 이에 따라, 보다 슬림한 구조의 조명 장치를 구현할 수 있다.In detail, the lighting apparatus according to the embodiment may be reduced in thickness by the thickness of the diffusion member, for example, about 100 μm to about 300 μm, thereby realizing a lighter structure of a slimmer structure.
이하, 실시예들 및 비교예들에 따른 조명 장치를 통하여 본 발명을 좀더 상세하게 설명한다. 이러한 실시예는 본 발명을 좀더 상세하게 설명하기 위하여 예시로 제시한 것에 불과하다. 따라서 본 발명이 이러한 실시예에 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail through the lighting apparatus according to the embodiments and comparative examples. These examples are merely given to illustrate the present invention in more detail. Therefore, the present invention is not limited to these examples.
실시예Example 1 One
도광판의 측면에 광원을 배치하고, 도광판의 하부에는 반사 시트를 배치하고, 상기 도광판의 상부에는 패턴부가 형성된 패턴 부재가 배치되었다.A light source is disposed on the side of the light guide plate, a reflective sheet is disposed below the light guide plate, and a pattern member having a pattern portion is disposed on the light guide plate.
이때, 상기 패턴 부재의 패턴부는 적색 안료 및 이산화규소(SiO2)를 포함하였다.In this case, the pattern portion of the pattern member included a red pigment and silicon dioxide (SiO 2).
이때, 상기 적색 안료는 약 20 중량% 만큼 포함되었고, 이산화규소는 약 3 중량% 만큼 포함되었다.At this time, the red pigment was included by about 20% by weight, silicon dioxide was included by about 3% by weight.
이어서, 실시예에 따른 패턴부의 인쇄 품질 및 조명 장치의 휘도를 측정하였다.Subsequently, the print quality of the pattern portion and the brightness of the lighting apparatus were measured.
실시예Example 2 2
상기 적색 안료가 약 24 중량% 만큼 포함되었고, 이산화규소는 약 5 중량% 만큼 포함되었다는 점을 제외하고는 실시예 1과 동일하게 패턴부를 제조한 후, 실시예에 따른 패턴부의 인쇄 품질 및 조명 장치의 휘도를 측정하였다.About 24 wt% of the red pigment and about 2% by weight of silicon dioxide was produced, except that the pattern portion was prepared in the same manner as in Example 1, and then the printing quality and lighting device of the pattern portion according to the embodiment The luminance of was measured.
실시예Example 3 3
상기 적색 안료가 약 30 중량% 만큼 포함되었고, 이산화규소는 약 9 중량% 만큼 포함되었다는 점을 제외하고는 실시예 1과 동일하게 패턴부를 제조한 후, 실시예에 따른 패턴부의 인쇄 품질 및 조명 장치의 휘도를 측정하였다.About 30 wt% of the red pigment was included, and about 9 wt% of silicon dioxide was prepared in the same manner as Example 1 except that the pattern portion was printed, and the printing quality and the lighting device of the pattern portion according to the embodiment The luminance of was measured.
비교예Comparative example 1 One
상기 적색 안료가 약 2 중량% 만큼 포함되었고, 이산화규소는 약 9 중량% 만큼 포함되었다는 점을 제외하고는 실시예 1과 동일하게 패턴부를 제조한 후, 실시예에 따른 패턴부의 인쇄 품질 및 조명 장치의 휘도를 측정하였다.About 2% by weight of the red pigment, and about 9% by weight of silicon dioxide was produced in the same manner as in Example 1 except that the pattern portion is manufactured, and the printing quality and lighting device of the pattern portion according to the embodiment The luminance of was measured.
비교예Comparative example 2 2
상기 적색 안료가 약 5 중량% 만큼 포함되었고, 이산화규소는 약 9 중량% 만큼 포함되었다는 점을 제외하고는 실시예 1과 동일하게 패턴부를 제조한 후, 실시예에 따른 패턴부의 인쇄 품질 및 조명 장치의 휘도를 측정하였다.About 5 wt% of the red pigment and about 9% by weight of silicon dioxide was produced in the same way as in Example 1 except that the pattern portion was manufactured, and then the printing quality and the lighting device of the pattern portion according to the embodiment The luminance of was measured.
비교예Comparative example 3 3
상기 적색 안료가 약 10 중량% 만큼 포함되었고, 이산화규소는 약 9 중량% 만큼 포함되었다는 점을 제외하고는 실시예 1과 동일하게 패턴부를 제조한 후, 실시예에 따른 패턴부의 인쇄 품질 및 조명 장치의 휘도를 측정하였다.About 10 wt% of the red pigment contained, and about 9 wt% of silicon dioxide was produced in the same manner as in Example 1, except that the pattern portion according to the printing quality and lighting apparatus of the pattern portion The luminance of was measured.
비교예Comparative example 4 4
상기 적색 안료가 약 60 중량% 만큼 포함되었고, 이산화규소는 약 9 중량% 만큼 포함되었다는 점을 제외하고는 실시예 1과 동일하게 패턴부를 제조한 후, 실시예에 따른 패턴부의 인쇄 품질 및 조명 장치의 휘도를 측정하였다.About 60 wt% of the red pigment was included, and about 9 wt% of silicon dioxide was produced in the same manner as in Example 1 except that the pattern portion was printed and the printing device of the pattern portion according to the embodiment The luminance of was measured.
비교예Comparative example 5 5
상기 적색 안료가 약 24 중량% 만큼 포함되었고, 이산화규소는 약 0.1 중량% 만큼 포함되었다는 점을 제외하고는 실시예 1과 동일하게 패턴부를 제조한 후, 실시예에 따른 패턴부의 인쇄 품질 및 조명 장치의 휘도를 측정하였다.About 24 wt% of the red pigment, and about 0.1 wt% of silicon dioxide, except that about 0.1 wt% of the pattern portion was manufactured in the same manner as in Example 1, and the printing quality and lighting device of the pattern portion according to the embodiment The luminance of was measured.
비교예Comparative example 6 6
상기 적색 안료가 약 24 중량% 만큼 포함되었고, 이산화규소는 약 15 중량% 만큼 포함되었다는 점을 제외하고는 실시예 1과 동일하게 패턴부를 제조한 후, 실시예에 따른 패턴부의 인쇄 품질 및 조명 장치의 휘도를 측정하였다.After the red pigment was included by about 24% by weight, and the silicon dioxide was contained by about 15% by weight, the pattern portion was manufactured in the same manner as in Example 1, and then the printing quality and lighting device of the pattern portion according to the embodiment The luminance of was measured.
휘도(cd/㎡)Luminance (cd / ㎡) 인쇄품질Print quality
실시예1Example 1 165.38165.38 정상normal
실시예2Example 2 162.15162.15 정상normal
실시예3Example 3 166.39166.39 정상normal
비교예1Comparative Example 1 327.55327.55 불량Bad
비교예2Comparative Example 2 319.75319.75 불량Bad
비교예3Comparative Example 3 322.67322.67 불량Bad
비교예4Comparative Example 4 163.18163.18 불량(얼룩발생)Poor (staining)
비교예5Comparative Example 5 134.91134.91 정상normal
비교예6Comparative Example 6 138.49138.49 정상normal
표 1을 참조하면, 제 1 실시예들에 따른 조명 장치는 비교예들에 따른 조명 장치에 비해 인쇄 품질 및 휘도가 향상되는 것을 알 수 있다.Referring to Table 1, it can be seen that the lighting apparatus according to the first embodiments is improved in print quality and brightness compared to the lighting apparatus according to the comparative examples.
자세하게, 안료가 약 20 내지 30 중량% 만큼 포함되고, 산란물질이 약 1 내지 10 중량% 만큼 포함되는 경우, 최적의 인쇄 품질 및 휘도가 구현되는 것을 알 수 있다.In detail, when the pigment is included by about 20 to 30% by weight, and the scattering material is included by about 1 to 10% by weight, it can be seen that the optimum print quality and brightness are realized.
또한, 제 1 실시예에 따른 조명 장치는 별도의 확산 부재가 요구되지 않으므로, 조명 장치의 두께를 감소시키는 것을 알 수 있다.In addition, it can be seen that the lighting apparatus according to the first embodiment does not require a separate diffusion member, thereby reducing the thickness of the lighting apparatus.
이하, 도 4를 참조하여, 다른 제 1 실시예에 따른 조명 장치를 설명한다. 다른 제 1 실시예에 따른 조명 장치에 대한 설명에서는 앞서 설명한 제 1 실시예에 따른 조명 장치와 동일 또는 유사한 설명에 대해서는 설명을 생략한다.Hereinafter, a lighting apparatus according to another first embodiment will be described with reference to FIG. 4. In the description of the lighting apparatus according to another first embodiment, descriptions that are the same as or similar to those of the lighting apparatus according to the first embodiment will be omitted.
도 4를 참조하면, 다른 제 1 실시예에 따른 조명 장치는, 커버 케이스(100), 도광판(200), 발광 부재(300), 반사 부재(400) 및 패턴 부재(600)를 포함할 수 있다.Referring to FIG. 4, the lighting apparatus according to another exemplary embodiment may include a cover case 100, a light guide plate 200, a light emitting member 300, a reflective member 400, and a pattern member 600. .
상기 발광 부재(300)는 발광다이오드들을 포함할 수 있다. 상기 발광다이오드들은 상기 도광판(200)의 일 측면에 배치될 수 있다. 상기 발광다이오드들은 광을 발생시켜서, 상기 도광판(200)의 측면을 통하여, 상기 도광판(200)에 광을 입사시킬 수 있다.The light emitting member 300 may include light emitting diodes. The light emitting diodes may be disposed on one side of the light guide plate 200. The light emitting diodes may generate light to allow light to enter the light guide plate 200 through a side surface of the light guide plate 200.
상기 발광다이오드들은 청색 광을 발생시키는 청색 발광다이오드 및/또는 자외선을 발생시키는 UV 발광다이오드를 포함할 수 있다. 즉, 상기 발광다이오드들은 약 430㎚ 내지 약 470㎚ 사이의 파장대를 가지는 청색광 또는 약 300㎚ 내지 약 400㎚ 사이의 파장대를 가지는 자외선을 발생시킬 수 있다.The light emitting diodes may include a blue light emitting diode for generating blue light and / or a UV light emitting diode for generating ultraviolet light. That is, the light emitting diodes may generate blue light having a wavelength band between about 430 nm and about 470 nm or ultraviolet rays having a wavelength band between about 300 nm and about 400 nm.
상기 발광다이오드들은 인쇄회로기판(350)에 실장될 수 있다. 상기 발광다이오드들은 상기 인쇄회로기판(350)의 하부에 배치될 수 있다. 상기 발광다이오드들은 상기 인쇄회로기판(350)을 통하여 구동신호를 인가받아 구동될 수 있다.The light emitting diodes may be mounted on a printed circuit board 350. The light emitting diodes may be disposed under the printed circuit board 350. The light emitting diodes may be driven by receiving a driving signal through the printed circuit board 350.
상기 인쇄회로기판(350)은 상기 발광다이오드들에 전기적으로 연결될 수 있다. 상기 인쇄회로기판(350)은 상기 발광다이오드들을 실장할 수 있다. 상기 인쇄회로기판(350)은 상기 커버 케이스(100) 내측에 배치될 수 있다.The printed circuit board 350 may be electrically connected to the light emitting diodes. The printed circuit board 350 may mount the light emitting diodes. The printed circuit board 350 may be disposed inside the cover case 100.
예를 들어, 상기 발광다이오드는 수직형 발광다이오드일 수 있다. 도 5에 도시된 것과 같이, 상기 발광다이오드는 도전 기판(301), 반사층(302), 제 1 도전형 반도체층(303), 제 2 도전형 반도체층(304), 활성층(305) 및 제 2 전극(306)을 포함할 수 있다.For example, the light emitting diode may be a vertical light emitting diode. As shown in FIG. 5, the light emitting diode includes a conductive substrate 301, a reflective layer 302, a first conductive semiconductor layer 303, a second conductive semiconductor layer 304, an active layer 305, and a second electrode. It may include an electrode 306.
상기 도전 기판(301)은 도전체를 포함할 수 있다. 상기 도전 기판(301)은 상기 반사층(302), 상기 제 1 도전형 반도체층(303), 상기 제 2 도전형 반도체층(304), 상기 활성층(305) 및 상기 제 2 전극(306)을 지지할 수 있다.The conductive substrate 301 may include a conductor. The conductive substrate 301 supports the reflective layer 302, the first conductive semiconductor layer 303, the second conductive semiconductor layer 304, the active layer 305, and the second electrode 306. can do.
상기 도전 기판(301)은 상기 반사층(302)을 통하여, 상기 제 1 도전형 반도체층(303)에 접속될 수 있다. 즉, 상기 도전 기판(301)은 상기 제 1 도전형 반도체층(303)에 전기적인 신호를 인가하기 위한 제 1 전극일 수 있다.The conductive substrate 301 may be connected to the first conductive semiconductor layer 303 through the reflective layer 302. That is, the conductive substrate 301 may be a first electrode for applying an electrical signal to the first conductive semiconductor layer 303.
상기 반사층(302)은 상기 도전기판(301) 상에 배치될 수 있다. 상기 반사층(302)은 상기 활성층(305)으로부터 출사되는 광을 상방으로 반사시킬 수 있다. 또한, 상기 반사층(302)은 도전층일 수 있다. 따라서, 상기 반사층(302)은 상기 도전기판(301)을 상기 제 1 도전형 반도체층(303)에 연결시킬 수 있다. 상기 반사층(302)으로 사용되는 물질의 예로서는 은 또는 알루미늄과 같은 금속 등을 들 수 있다.The reflective layer 302 may be disposed on the conductive substrate 301. The reflective layer 302 may reflect light emitted from the active layer 305 upwards. In addition, the reflective layer 302 may be a conductive layer. Accordingly, the reflective layer 302 may connect the conductive substrate 301 to the first conductive semiconductor layer 303. Examples of the material used as the reflective layer 302 include a metal such as silver or aluminum.
상기 제 1 도전형 반도체층(303)은 상기 반사층(302) 상에 배치될 수 있다. 상기 제 1 도전형 반도체층(303)은 제 1 도전형을 가질 수 있다. 상기 제 1 도전형 반도체층(303)은 n형 반도체층일 수 있다. 예를 들어, 상기 제 1 도전형 반도체층(303)은 n형 GaN층 일 수 있다.The first conductivity type semiconductor layer 303 may be disposed on the reflective layer 302. The first conductivity type semiconductor layer 303 may have a first conductivity type. The first conductive semiconductor layer 303 may be an n-type semiconductor layer. For example, the first conductivity type semiconductor layer 303 may be an n-type GaN layer.
상기 제 2 도전형 반도체층(304)은 상기 제 1 도전형 반도체층(303) 상에 배치될 수 있다. 상기 제 2 도전형 반도체층(304)은 상기 제 1 도전형 반도체층(303)과 마주보며, p형 반도체층일 수 있다. 상기 제 2 도전형 반도체층(304)은 예를 들어, p형 GaN층 일 수 있다.The second conductivity type semiconductor layer 304 may be disposed on the first conductivity type semiconductor layer 303. The second conductive semiconductor layer 304 may face the first conductive semiconductor layer 303 and may be a p-type semiconductor layer. The second conductivity type semiconductor layer 304 may be, for example, a p-type GaN layer.
상기 활성층(305)은 상기 제 1 도전형 반도체층(303) 및 상기 제 2 도전형 반도체층(304) 사이에 개재될 수 있다. 상기 활성층(305)은 단일 양자 우물 구조 또는 다중 양자 우물 구조를 가질 수 있다. 상기 활성층(305)은 InGaN 우물층 및 AlGaN 장벽층의 주기 또는 InGaN 우물층과 GaN 장벽층의 주기로 형성될 수 있으며, 이러한 활성층(305)의 발광 재료는 발광 파장 예컨대, 청색 파장, 레드 파장, 녹색 파장 등에 따라 달라질 수 있다.The active layer 305 may be interposed between the first conductive semiconductor layer 303 and the second conductive semiconductor layer 304. The active layer 305 may have a single quantum well structure or a multiple quantum well structure. The active layer 305 may be formed with a period of an InGaN well layer and an AlGaN barrier layer or a period of an InGaN well layer and a GaN barrier layer, and the light emitting material of the active layer 305 may have an emission wavelength such as a blue wavelength, a red wavelength, or a green color. It may vary depending on the wavelength.
상기 제 2 전극(306)은 상기 제 2 도전형 반도체층(304) 상에 배치될 수 있다. 상기 제 2 전극(306)은 상기 제 2 도전형 반도체층(304)에 접속될 수 있다.The second electrode 306 may be disposed on the second conductivity type semiconductor layer 304. The second electrode 306 may be connected to the second conductivity type semiconductor layer 304.
이하, 도 6을 참조하여, 또 다른 제 1 실시예에 따른 조명 장치를 설명한다. 또 다른 실시예에 따른 조명 장치에 대한 설명에서는 앞서 설명한 실시예에 따른 조명 장치와 동일 또는 유사한 설명에 대해서는 설명을 생략한다.Hereinafter, a lighting apparatus according to another first embodiment will be described with reference to FIG. 6. In the description of the lighting apparatus according to another embodiment, descriptions that are the same as or similar to those of the lighting apparatus according to the above-described embodiments will be omitted.
도 6을 참조하면, 또 다른 제 1 실시예에 따른 조명 장치는, 커버 케이스(100), 발광 부재(300), 반사 부재(400) 및 패턴 부재(600)를 포함할 수 있다.Referring to FIG. 6, the lighting apparatus according to yet another embodiment may include a cover case 100, a light emitting member 300, a reflective member 400, and a pattern member 600.
상기 발광 부재(300)는 상기 반사 부재(400) 상부에 배치될 수 있다. 예를 들어, 상기 발광 부재(300)는 상기 반사 부재(400) 및 상기 패턴 부재(600) 사이에 배치될 수 있다.The light emitting member 300 may be disposed above the reflective member 400. For example, the light emitting member 300 may be disposed between the reflective member 400 and the pattern member 600.
즉, 상기 발광 부재(300)는 상기 패턴 부재(600)가 배치되는 방향으로 직접 광이 출사될 수 있다. 또한, 상기 발광 부재(300)에서 출사되는 광 중 상기 발광 부재의 하부로 반사되는 광은 상기 반사 부재(400)를 통해 다시 상방 즉, 상기 패턴 부재(600) 방향으로 광이 출사될 수 있다.That is, the light emitting member 300 may directly emit light in a direction in which the pattern member 600 is disposed. Also, the light reflected from the light emitting member 300 to the lower portion of the light emitting member may be emitted upward through the reflective member 400, that is, toward the pattern member 600.
상기 발광 부재(300)는 발광다이오드들을 포함할 수 있다. The light emitting member 300 may include light emitting diodes.
상기 발광다이오드들은 청색 광을 발생시키는 청색 발광다이오드 및/또는 자외선을 발생시키는 UV 발광다이오드를 포함할 수 있다. 즉, 상기 발광다이오드들은 약 430㎚ 내지 약 470㎚ 사이의 파장대를 가지는 청색광 또는 약 300㎚ 내지 약 400㎚ 사이의 파장대를 가지는 자외선을 발생시킬 수 있다.The light emitting diodes may include a blue light emitting diode for generating blue light and / or a UV light emitting diode for generating ultraviolet light. That is, the light emitting diodes may generate blue light having a wavelength band between about 430 nm and about 470 nm or ultraviolet rays having a wavelength band between about 300 nm and about 400 nm.
상기 발광다이오드들은 인쇄회로기판(350)에 실장될 수 있다. 상기 발광다이오드들은 상기 인쇄회로기판(350)의 하부에 배치될 수 있다. 상기 발광다이오드들은 상기 인쇄회로기판(350)을 통하여 구동신호를 인가받아 구동될 수 있다.The light emitting diodes may be mounted on a printed circuit board 350. The light emitting diodes may be disposed under the printed circuit board 350. The light emitting diodes may be driven by receiving a driving signal through the printed circuit board 350.
상기 인쇄회로기판(350)은 상기 발광다이오드들에 전기적으로 연결될 수 있다. 상기 인쇄회로기판(350)은 상기 발광다이오드들을 실장할 수 있다. 상기 인쇄회로기판(350)은 상기 커버 케이스(100) 내측에 배치될 수 있다.The printed circuit board 350 may be electrically connected to the light emitting diodes. The printed circuit board 350 may mount the light emitting diodes. The printed circuit board 350 may be disposed inside the cover case 100.
이하, 도 7 내지 도 15를 참조하여, 제 2 실시예들에 따른 조명 장치를 설명한다. 제 2 실시예들에 따른 조명 장치에 대한 설명에서는 앞서 설명한 제 1 실시예에 따른 조명 장치와 동일 또는 유사한 설명에 대해서는 설명을 생략한다. 또한, 앞서 설명한 제 1 실시예에 따른 조명 장치와 동일한 구성에 대해서는 동일한 도면 부호를 부여한다.Hereinafter, the lighting apparatus according to the second embodiments will be described with reference to FIGS. 7 to 15. In the description of the lighting apparatus according to the second embodiment, descriptions that are the same as or similar to those of the lighting apparatus according to the first embodiment will be omitted. In addition, the same reference numerals are assigned to the same components as the lighting apparatus according to the first embodiment described above.
도 7 내지 도 9를 참조하면, 제 2 실시예에 따른 조명 장치(1200)는 커버 케이스(100), 도광판(200), 발광 부재(300), 반사 부재(400), 확산 부재(500) 및 패턴 부재(600)를 포함할 수 있다.7 to 9, the lighting apparatus 1200 according to the second embodiment includes a cover case 100, a light guide plate 200, a light emitting member 300, a reflective member 400, a diffusion member 500, and the like. The pattern member 600 may be included.
도 7에서는 상기 발광 부재(300)가 광원 및 광 전달부를 포함하는 것에 대해 도시하였으나, 실시예에 따른 조명 장치는 광원(310)만을 포함할 수 있다. 예를 들어, 광 전달부를 생략하고, 도 4 및 도 6과 같이 인쇄회로기판에 직접 복수 개의 광원을 실장함으로써, 상기 도광판의 측면 또는 상방 방향으로 광을 출사할 수 있다.In FIG. 7, the light emitting member 300 includes a light source and a light transmitting unit, but the lighting apparatus according to the embodiment may include only the light source 310. For example, the light transmitting unit may be omitted, and a plurality of light sources may be directly mounted on the printed circuit board as shown in FIGS. 4 and 6, so that light may be emitted in a side or upward direction of the light guide plate.
제 2 실시예에 따른 조명 장치는 제 1 실시예에 따른 조명 장치와 다르게 확산 부재(500)를 더 포함할 수 있다. 또한, 반사 부재(400)의 위치 및 형상이 다를 수 있다. 상기 반사 부재(400)에 대해서는 이하에서 상세하게 설명한다.The lighting apparatus according to the second embodiment may further include a diffusion member 500 unlike the lighting apparatus according to the first embodiment. In addition, the position and shape of the reflective member 400 may be different. The reflective member 400 will be described in detail below.
상기 확산 부재(500)는 상기 도광판(200)의 상부에 배치될 수 있다. 상기 확산 부재(500)는 확산 시트일 수 있다. 상기 확산 부재(500)는 상기 도광판(200)의 상부 방향으로 출사되는 광을 확산시켜, 통과되는 광의 균일도를 향상시킬 수 있다. 상기 확산 부재(500)에는 광의 확산성을 향상시키기 위해, 추가적인 확산 비드 등을 더 포함할 수 있다.The diffusion member 500 may be disposed on the light guide plate 200. The diffusion member 500 may be a diffusion sheet. The diffusion member 500 may diffuse the light emitted toward the upper direction of the light guide plate 200 to improve the uniformity of the light passing through. The diffusion member 500 may further include additional diffusion beads and the like to improve light diffusivity.
상기 패턴 부재(600)는 상기 확산 부재(500) 상에 배치될 수 있다. The pattern member 600 may be disposed on the diffusion member 500.
그러나, 제 2 실시예는 이에 제한되지 않고, 제 1 실시예와 같이 상기 패턴 부재(600) 상에 확산 기능을 부여하여, 상기 확산 부재를 생략할 수 있다. However, the second embodiment is not limited thereto, and the diffusion member may be omitted by providing a diffusion function on the pattern member 600 as in the first embodiment.
이에 따라, 별도의 확산 부재를 생략할 수 있으므로, 전체적인 두께 감소의 효과를 가질 수 있다.Accordingly, since a separate diffusion member can be omitted, the overall thickness can be reduced.
상기 반사 부재(400)는 상기 패턴부(PA)와는 중첩되지 않고, 상기 비패턴부(NPA)와는 중첩될 수 있다. 자세하게, 상기 제 2 반사 부재(420)는 상기 패턴부(PA) 및 상기 비패턴부(NPA)와 중첩되지 않을 수 있다. 또한, 상기 제 1 반사 부재(420)는 상기 패턴부(PA)와는 중첩되지 않고, 상기 비패턴부(NPA)와 부분적으로 중첩될 수 있다.The reflective member 400 may not overlap the pattern portion PA, but may overlap the non-pattern portion NPA. In detail, the second reflective member 420 may not overlap the pattern part PA and the non-pattern part NPA. In addition, the first reflective member 420 may partially overlap the non-pattern portion NPA without overlapping the pattern portion PA.
즉, 상기 제 1 반사 부재(410) 및 상기 제 2 반사 부재(420)의 배치 위치는 상기 패턴부(PA)의 배치 위치와 중첩되지 않을 수 있다.That is, the arrangement position of the first reflective member 410 and the second reflective member 420 may not overlap with the arrangement position of the pattern part PA.
이에 따라, 상기 발광 부재(300)에서 광이 출사되지 않을 때 외부에서 상기 패턴(600)의 패턴부(PA)가 시인되는 것을 방지할 수 있다. 자세하게, 상기 반사 부재의 위치가 상기 패턴부(PA)의 위치와는 중첩되지 않는 위치에 배치되므로, 상기 광원(310)의 전원이 오프(off) 상태일 때, 즉, 상기 패턴 부재(600) 방향으로 광을 출사하지 않을 때, 조명 장치의 외부에서 상기 조명 장치의 내부로 입사된 광이 조명 장치의 반사 부재에 의해 상방으로 출사되어 패턴부가 시인되는 것을 방지할 수 있다.Accordingly, when light is not emitted from the light emitting member 300, it is possible to prevent the pattern portion PA of the pattern 600 from being visually recognized from the outside. In detail, since the position of the reflective member does not overlap with the position of the pattern part PA, when the power of the light source 310 is in an off state, that is, the pattern member 600. When the light is not emitted in the direction, the light incident from the outside of the lighting device into the inside of the lighting device is emitted upward by the reflecting member of the lighting device, thereby preventing the pattern portion from being recognized.
이에 따라, 실시예에 따른 조명 장치는 전체적인 시인성을 향상시킬 수 있다.Accordingly, the lighting apparatus according to the embodiment can improve the overall visibility.
도면에는 도시되지 않았으나, 상기 확산 부재(500) 상에는 프리즘 시트 등의 광학 부재 등이 더 배치될 수 있다. 자세하게, 상기 확산 부재(500) 및 상기 패턴 부재(600) 사이에는 프리즘 시트 등의 광학 부재 등이 더 배치될 수 있다. Although not shown in the drawing, an optical member such as a prism sheet may be further disposed on the diffusion member 500. In detail, an optical member such as a prism sheet may be further disposed between the diffusion member 500 and the pattern member 600.
상기 프리즘 시트는 통과하는 광의 직진성을 증가시켜 조명 장치의 휘도를 향상시킬 수 있다.The prism sheet may increase the straightness of the light passing through to improve the brightness of the lighting device.
상기 반사 부재(400)는 상기 도광판(200)에 인접하여 배치될 수 있다. 예를 들어, 상기 반사 부재(400)는 상기 도광판(200)과 접촉하며 배치될 수 있다. 자세하게, 상기 반사 부재(400)는 상기 도광판(200)과 직접 또는 간접적으로 접촉하며 배치될 수 있다. 예를 들어, 상기 반사 부재(400)는 접착층을 통해 상기 도광판(200)과 접착될 수 있다. 상기 반사 부재(400)는 상기 도광판(200)의 일면으로부터 출사되는 광을 상방으로 반사시킬 수 있다.The reflective member 400 may be disposed adjacent to the light guide plate 200. For example, the reflective member 400 may be in contact with the light guide plate 200. In detail, the reflective member 400 may be disposed in direct or indirect contact with the light guide plate 200. For example, the reflective member 400 may be adhered to the light guide plate 200 through an adhesive layer. The reflective member 400 may reflect light emitted from one surface of the light guide plate 200 upward.
상기 반사 부재(400)는 상기 도광판(200)의 적어도 일 측면 상에 배치될 수 있다. 또한, 상기 반사 부재(400)는 상기 발광 부재(300) 및 상기 도광판(200)의 하부에 배치될 수 있다.The reflective member 400 may be disposed on at least one side of the light guide plate 200. In addition, the reflective member 400 may be disposed under the light emitting member 300 and the light guide plate 200.
도 8 및 도 9를 참조하면, 상기 반사 부재(400)는 제 1 반사 부재(410) 및 제 2 반사 부재(420)를 포함할 수 있다. 자세하게, 상기 반사 부재(400)는 상기 발광 부재(300) 및 상기 도광판(200)의 하부에 배치되는 제 1 반사 부재(410) 상기 도광판(200)의 적어도 일 측면 상에 배치되는 제 2 반사 부재(420)를 포함할 수 있다.8 and 9, the reflective member 400 may include a first reflective member 410 and a second reflective member 420. In detail, the reflective member 400 may include a first reflective member 410 disposed below the light emitting member 300 and the light guide plate 200, and a second reflective member disposed on at least one side surface of the light guide plate 200. 420 may be included.
상기 제 2 반사 부재(420)는 상기 도광판(200)의 측면들중 적어도 하나의 측면에 배치될 수 있다. 예를 들어, 상기 도광판(200)은 상기 광 전달부(320)와 마주보는 제 1 측면(210), 상기 제 1 측면(210)과 반대되는 제 2 측면(220), 상기 제 1 측면(210) 및 상기 제 2 측면(220)을 연결하는 제 3 측면(230) 및 제 4 측면(240)을 포함할 수 있다. 상기 제 2 반사 부재(420)는 상기 제 2 측면(220), 상기 제 3 측면(230) 및 상기 제 4 측면(240) 중 적어도 하나의 측면 상에 배치될 수 있다.The second reflective member 420 may be disposed on at least one side of the side surfaces of the light guide plate 200. For example, the light guide plate 200 may include a first side surface 210 facing the light transmitting unit 320, a second side surface 220 opposite to the first side surface 210, and the first side surface 210. ) And a third side surface 230 and a fourth side surface 240 connecting the second side surface 220. The second reflective member 420 may be disposed on at least one side of the second side surface 220, the third side surface 230, and the fourth side surface 240.
상기 제 1 반사 부재(410)는 상기 발광 부재(300) 및 상기 도광판(200)의 하부에 배치될 수 있다. 자세하게, 상기 제 1 반사 부재(410)는 상기 광 전달부(320) 및 상기 도광판(200)의 하부에 배치될 수 있다.The first reflective member 410 may be disposed under the light emitting member 300 and the light guide plate 200. In detail, the first reflective member 410 may be disposed under the light transmitting part 320 and the light guide plate 200.
상기 제 1 반사 부재(410)는 상기 광 전달부(320) 및 상기 도광판(200)과 직접 또는 간접적으로 접촉하며 배치될 수 있다. 예를 들어, 상기 제 1 반사 부재(410)는 접착층을 통해 상기 광 전달부(320) 및 상기 도광판(200)과 접착될 수 있다.The first reflective member 410 may be disposed in direct or indirect contact with the light transmitting part 320 and the light guide plate 200. For example, the first reflective member 410 may be bonded to the light transmitting part 320 and the light guide plate 200 through an adhesive layer.
상기 제 1 반사 부재(410)는 상기 도광판(200), 상기 광 전달부(320) 및 상기 도광판(200) 및 상기 광 전달부(320)의 경계면(BA) 상에 배치될 수 있다. 즉, 상기 제 1 반사 부재(410)는 상기 도광판(200) 및 상기 광 전달부(320)의 경계면(BA)을 덮으면서, 상기 도광판(200) 및 상기 광 전달부(320)의 하부에 배치될 수 있다.The first reflective member 410 may be disposed on the light guide plate 200, the light transmitting part 320, and the boundary surface BA of the light guide plate 200 and the light transmitting part 320. That is, the first reflective member 410 is disposed below the light guide plate 200 and the light transmission part 320 while covering the boundary surface BA of the light guide plate 200 and the light transmission part 320. Can be.
예를 들어, 상기 도광판(200) 및 상기 광 전달부(320)가 접착층을 통해 접착되는 경우, 상기 제 1 반사 부재(410)는 상기 접착층을 덮으면서, 상기 도광판(200) 및 상기 광 전달부(320)의 일부분과 접촉하며 배치될 수 있다.For example, when the light guide plate 200 and the light transmission unit 320 are bonded through an adhesive layer, the first reflective member 410 covers the adhesive layer, and the light guide plate 200 and the light transmission unit And may be placed in contact with a portion of 320.
상기 제 1 반사 부재(410) 및 상기 제 2 반사 부재(420)는 서로 이격하여 배치될 수 있다. 또는, 상기 제 1 반사 부재(410) 및 상기 제 2 반사 부재(420)는 서로 접촉하며 배치될 수 있다. 예를 들어, 상기 제 1 반사 부재(410) 및 상기 제 2 반사 부재(420)는 일체로 형성될 수 있다.The first reflective member 410 and the second reflective member 420 may be spaced apart from each other. Alternatively, the first reflective member 410 and the second reflective member 420 may be disposed in contact with each other. For example, the first reflective member 410 and the second reflective member 420 may be integrally formed.
상기 제 2 반사 부재(420)에 의해 상기 도광판(200)의 측면을 통해 새는 광을 도광판(200) 내부로 반사시켜, 도광판의 상부 방향으로 출사할 수 있다. 또한, 상기 제 1 반사 부재(410)에 의해 상기 발광 부재(300)로부터 출사되는 광이 상기 광원과 상기 도광판 사이에서 굴절률 변화에 따라 외부로 새는 광을 도광판(200) 내부로 반사시켜, 도광판의 상부 방향으로 출사할 수 있다.Light leaking through the side surface of the light guide plate 200 by the second reflective member 420 may be reflected into the light guide plate 200, and may be emitted toward the upper direction of the light guide plate. In addition, the light emitted from the light emitting member 300 by the first reflecting member 410 reflects light leaking to the outside according to a change in refractive index between the light source and the light guide plate into the light guide plate 200, thereby Can exit in the upward direction.
이에 따라, 상기 제 1 반사 부재(410) 및 상기 제 2 반사 부재(420)에 의해 빛샘 현상을 감소시켜, 조명 장치의 전체적인 휘도를 향상시킬 수 있다.Accordingly, light leakage may be reduced by the first reflecting member 410 and the second reflecting member 420 to improve the overall brightness of the lighting apparatus.
이하, 도 10 내지 도 12를 참조하여 다른 제 2 실시예예 따른 조명 장치를 설명한다. 다른 제 2 실시예에 따른 조명 장치에 대한 설명에서는 앞서 설명한 제 2 실시예에 따른 조명 장치와 동일 유사한 구성에 대해서는 설명을 생략하며, 동일 유사한 구성에 대해서는 동일한 도면 부호를 부여한다.Hereinafter, a lighting apparatus according to another exemplary embodiment will be described with reference to FIGS. 10 to 12. In the description of the lighting apparatus according to the second embodiment, the description of the same or similar components as those of the lighting apparatus according to the second embodiment will be omitted, and the same reference numerals are assigned to the same and similar components.
도 4 내지 도 6을 참조하면, 다른 제 2 실시예에 따른 조명 장치는 반사 부재(400)가 상기 도광판(200)의 하부에 배치될 수 있다.4 to 6, in the lighting apparatus according to another exemplary embodiment, the reflective member 400 may be disposed under the light guide plate 200.
자세하게, 상기 반사 부재(400)는 상기 도광판(200) 및 상기 광 전달부(320)과 접촉하며 배치되는 제 1 반사 부재(410) 및 상기 도광판 하부의 가장자리 면 상에 배치되는 제 3 반사 부재(430)를 포함할 수 있다.In detail, the reflective member 400 includes a first reflective member 410 disposed in contact with the light guide plate 200 and the light transmitting unit 320, and a third reflective member disposed on an edge surface of the lower surface of the light guide plate. 430).
상기 제 3 반사 부재(430)는 상기 도광판의 하부면에서 도광판의 가장자리 면 상에 배치될 수 있다. 예를 들어, 상기 도광판의 하부면은 상기 광 전달부(320)와 인접하는 제 1 하부면, 상기 제 1 하부면과 반대되는 제 2 하부면, 상기 제 1 하부면 및 상기 제 1 하부면 및 상기 제 2 하부면을 연결하는 제 3 하부면 및 제 4 하부면을 포함할 수 있다. 상기 제 3 반사 부재(430)는 상기 제 2 하부면, 상기 제 3 하부면 및 상기 제 4 하부면 중 적어도 하나의 하부면 상에 배치될 수 있다.The third reflective member 430 may be disposed on an edge surface of the light guide plate on the bottom surface of the light guide plate. For example, a lower surface of the light guide plate may include a first lower surface adjacent to the light transmitting part 320, a second lower surface opposite to the first lower surface, the first lower surface and the first lower surface, and It may include a third lower surface and a fourth lower surface connecting the second lower surface. The third reflective member 430 may be disposed on at least one lower surface of the second lower surface, the third lower surface and the fourth lower surface.
상기 제 1 반사 부재(410)는 상기 도광판의 제 1 하부면 및 상기 광 전달부(320)의 하부면과 접촉하며 배치될 수 있다. 자세하게, 상기 제 1 반사 부재(410)는 상기 도광판의 제 1 하부면, 상기 광 전달부(320) 및 상기 도광판(200) 및 상기 광 전달부(320)의 경계면(BA) 상에 배치될 수 있다. 즉, 상기 제 1 반사 부재(410)는 상기 도광판(200) 및 상기 광 전달부(320)의 경계면(BA)을 덮으면서, 상기 도광판의 제 1 하부면 및 상기 광 전달부(320)의 하부에 배치될 수 있다.The first reflective member 410 may be disposed in contact with the first lower surface of the light guide plate and the lower surface of the light transmitting part 320. In detail, the first reflective member 410 may be disposed on the first lower surface of the light guide plate, the light transmitting part 320, and the boundary surface BA of the light guide plate 200 and the light transmitting part 320. have. That is, the first reflective member 410 covers the boundary surface BA of the light guide plate 200 and the light transmitting part 320, and the first lower surface of the light guide plate and the lower part of the light transmitting part 320. Can be placed in.
예를 들어, 상기 도광판(200) 및 상기 광 전달부(320)가 접착층을 통해 접착되는 경우, 상기 제 1 반사 부재(410)는 상기 접착층을 덮으면서, 상기 도광판의 제 1 하부면 및 상기 광 전달부(320)의 일부분과 접촉하며 배치될 수 있다.For example, when the light guide plate 200 and the light transmitting unit 320 are bonded through an adhesive layer, the first reflective member 410 covers the adhesive layer, and the first lower surface and the light of the light guide plate. It may be disposed in contact with a portion of the delivery unit 320.
상기 제 1 반사 부재(410) 및 상기 제 3반사 부재(430)는 서로 이격하여 배치될 수 있다. 또는, 상기 제 1 반사 부재(410) 및 상기 제 3 반사 부재(430)는 서로 접촉하며 배치될 수 있다. 예를 들어, 상기 제 1 반사 부재(410) 및 상기 제 3 반사 부재(430)는 일체로 형성될 수 있다.The first reflective member 410 and the third reflective member 430 may be spaced apart from each other. Alternatively, the first reflective member 410 and the third reflective member 430 may be in contact with each other. For example, the first reflective member 410 and the third reflective member 430 may be integrally formed.
상기 제 3 반사 부재(430)에 의해 상기 도광판(200)의 하부면을 통해 새는 광을 도광판(200) 방향으로 반사시켜, 도광판의 상부 방향으로 출사할 수 있다. 또한, 상기 제 1 반사 부재(410)에 의해 상기 발광 부재(300)로부터 출사되는 광이 상기 광원과 상기 도광판 사이에서 굴절률 변화에 따라 외부로 새는 광을 도광판(200) 내부로 반사시켜, 도광판의 상부 방향으로 출사할 수 있다.The light leaking through the lower surface of the light guide plate 200 by the third reflective member 430 may be reflected in the direction of the light guide plate 200, and may be emitted in an upper direction of the light guide plate. In addition, the light emitted from the light emitting member 300 by the first reflecting member 410 reflects light leaking to the outside according to a change in refractive index between the light source and the light guide plate into the light guide plate 200, thereby Can exit in the upward direction.
이에 따라, 상기 제 1 반사 부재(410) 및 상기 제 3 반사 부재(430)에 의해 빛샘 현상을 감소시켜, 조명 장치의 전체적인 휘도를 향상시킬 수 있다.Accordingly, light leakage may be reduced by the first reflective member 410 and the third reflective member 430, thereby improving overall brightness of the lighting apparatus.
상기 제 1 반사 부재(410) 및 상기 제 3 반사 부재(430)는 상기 패턴부(PA)와는 중첩되지 않고, 상기 비패턴부(NPA)와는 중첩될 수 있다. 자세하게, 상기 제 1 반사 부재(410) 및 상기 제 3 반사 부재(430)가 배치되는 도광판의 상기 제 1 내지 4 하부면들은 상기 패턴부(PA)와는 중첩되지 않고, 상기 비패턴부(NPA)와는 중첩될 수 있다.The first reflective member 410 and the third reflective member 430 may not overlap with the pattern part PA, but may overlap with the non-pattern part NPA. In detail, the first to fourth lower surfaces of the light guide plate on which the first reflecting member 410 and the third reflecting member 430 are disposed do not overlap with the pattern part PA, and the non-pattern part NPA. And can overlap.
즉, 상기 제 1 반사 부재(410) 및 상기 제 3 반사 부재(430)가 배치되는 상기 도광판의 하부면의 위치는 상기 패턴부(PA)의 배치 위치와 중첩되지 않을 수 있다.That is, the position of the lower surface of the light guide plate on which the first reflective member 410 and the third reflective member 430 are disposed may not overlap with the arrangement position of the pattern part PA.
이에 따라, 상기 발광 부재(300)에서 광이 출사되지 않을 때 외부에서 상기 패턴 부재(600)의 패턴부(PA)가 시인되는 것을 방지할 수 있다. 자세하게, 상기 반사 부재의 위치가 상기 패턴부(PA)의 위치와는 중첩되지 않는 위치에 배치되므로, 상기 광원(310)의 전원이 오프(off) 상태일 때, 즉, 상기 패턴쇄 부재(600) 방향으로 광을 출사하지 않을 때, 조명 장치의 외부에서 상기 조명 장치의 내부로 입사된 광이 조명 장치의 반사 부재에 의해 상방으로 출사되어 패턴부가 시인되는 것을 방지할 수 있다.Accordingly, when light is not emitted from the light emitting member 300, the pattern portion PA of the pattern member 600 may be prevented from being recognized from the outside. In detail, since the position of the reflective member does not overlap with the position of the pattern part PA, when the power of the light source 310 is in an off state, that is, the pattern printing member 600. When light is not emitted in the direction of), the light incident from the outside of the lighting device into the lighting device is emitted upward by the reflecting member of the lighting device, thereby preventing the pattern portion from being recognized.
이에 따라, 제 2 실시예에 따른 조명 장치는 전체적인 시인성을 향상시킬 수 있다.Accordingly, the lighting apparatus according to the second embodiment can improve the overall visibility.
이하, 도 13 내지 도 15를 참조하여, 또 다른 제 2 실시예에 따른 조명 장치를 설명한다. 또 다른 제 2 실시예에 따른 조명 장치에 대한 설명에서는 앞서 설명한 또 다른 제 2 실시예에 따른 조명 장치와 동일 유사한 구성에 대해서는 설명을 생략하며, 동일 유사한 구성에 대해서는 동일한 도면 부호를 부여한다.Hereinafter, a lighting apparatus according to another exemplary embodiment will be described with reference to FIGS. 13 to 15. In the description of the lighting apparatus according to the second embodiment, the description of the same or similar components as those of the lighting apparatus according to the second embodiment will be omitted, and the same reference numerals are assigned to the same or similar components.
도 13 내지 도 15를 참조하면, 또 다른 제 2 실시예에 따른 조명 장치는 반사 부재(400)가 상기 도광판(200)의 측면 및 하부에 배치될 수 있다.13 to 15, in the lighting apparatus according to yet another exemplary embodiment, a reflective member 400 may be disposed on the side and the bottom of the light guide plate 200.
자세하게, 상기 반사 부재(400)는 상기 도광판(200) 및 상기 광 전달부(320)과 접촉하며 배치되는 제 1 반사 부재(420), 상기 도광판(200)의 적어도 일 측면 상에 배치되는 제 2 반사 부재(420) 및 상기 도광판 하부의 가장자리 면 상에 배치되는 제 3 반사 부재(430)를 포함할 수 있다.In detail, the reflective member 400 includes a first reflective member 420 disposed in contact with the light guide plate 200 and the light transmitting part 320, and a second reflective member 400 disposed on at least one side surface of the light guide plate 200. It may include a reflective member 420 and a third reflective member 430 disposed on the edge surface of the lower portion of the light guide plate.
즉, 제 3 실시예에 따른 조명 장치는 앞서 설명한 제 1 실시예 및 제 2 실시예의 제 1 내지 제 3 반사 부재를 모두 포함할 수 있다.That is, the lighting apparatus according to the third embodiment may include both the first to third reflective members of the first and second embodiments described above.
이에 따라, 상기 발광 부재(300)에서 광이 출사되지 않을 때 외부에서 상기 패턴 부재(600)의 패턴부(PA)가 시인되는 것을 방지할 수 있다. 자세하게, 상기 반사 부재의 위치가 상기 패턴부(PA)의 위치와는 중첩되지 않는 위치에 배치되므로, 상기 광원(310)의 전원이 오프(off) 상태일 때, 즉, 상기 패턴 부재(600) 방향으로 광을 출사하지 않을 때, 조명 장치의 외부에서 상기 조명 장치의 내부로 입사된 광이 조명 장치의 반사 부재에 의해 상방으로 출사되어 패턴부가 시인되는 것을 방지할 수 있다.Accordingly, when light is not emitted from the light emitting member 300, the pattern portion PA of the pattern member 600 may be prevented from being recognized from the outside. In detail, since the position of the reflective member does not overlap with the position of the pattern part PA, when the power of the light source 310 is in an off state, that is, the pattern member 600. When the light is not emitted in the direction, the light incident from the outside of the lighting device into the inside of the lighting device is emitted upward by the reflecting member of the lighting device, thereby preventing the pattern portion from being recognized.
이에 따라, 제 2 실시예에 따른 조명 장치는 전체적인 시인성을 향상시킬 수 있다.Accordingly, the lighting apparatus according to the second embodiment can improve the overall visibility.
실시예들에 따른 조명 장치는 상기 조명 장치의 패턴 부재 상에 원단 부재 등을 배치하여 차량 등에 적용될 수 있다.The lighting apparatus according to the embodiments may be applied to a vehicle by disposing a fabric member or the like on the pattern member of the lighting apparatus.
도 16 내지 도 19는 실시예에 따른 조명 장치가 차량에 적용되는 일례를 도시한 도면들이다.16 to 19 are diagrams illustrating an example in which the lighting apparatus according to the embodiment is applied to a vehicle.
도 16 내지 도 19를 참조하면, 실시예들에 따른 조명 장치는 차량에 적용될 수 있다. 16 to 19, the lighting apparatus according to the embodiments may be applied to a vehicle.
예를 들어, 실시예들에 따른 조명 장치는 도 16과 같이 자동차의 내부에 위치할 수도 있으며, 자동차 내부 또는 외부에서 조명 장치로 적용될 수 있는 모든 곳에 위치할 수 있다.For example, the lighting apparatus according to the embodiments may be located inside the vehicle as shown in FIG. 16, and may be located anywhere that can be applied as the lighting apparatus inside or outside the vehicle.
자세하게, 실시예들에 따른 조명 장치 상에 원단 부재가 배치됨에 따라, 조명 장치가 오프 상태인 경우에는 외부에서 조명 장치의 패턴이 시인되지 않을 수 있다. In detail, as the fabric member is disposed on the lighting apparatus according to the embodiments, when the lighting apparatus is in an off state, the pattern of the lighting apparatus may not be visually recognized from the outside.
상기 원단 부재는 광 투광성 원단일 수 있다. 예를 들어, 상기 원단 부재는 광을 투과하거나 또는 반투과할 수 있다.The fabric member may be a light transmissive fabric. For example, the fabric member may transmit or transflect light.
상기 원단 부재의 투과율은 약 3% 내지 30%일 수 있다. 상기 원단 부재의 투과율이 3% 미만인 경우 광원의 밝기를 높여야 하므로 발열에 따라 신뢰성이 저하될 수 있고, 투과율이 30%를 초과하는 경우 원단의 뒷부분이 시인되기 때문이다. 자세하게, 원단 부재의 투과율은 약 5% 내지 15%일 수 있다. 이는 투과율이 5% 미만인 경우 시인성이 떨어지게 되며, 투과율이 20% 이상인 경우 조명 장치의 밝기를 조절하기 어렵기 때문이다.The transmittance of the fabric member may be about 3% to 30%. If the transmittance of the fabric member is less than 3%, the brightness of the light source should be increased, so that reliability may be degraded due to heat generation. If the transmittance exceeds 30%, the back of the fabric is visually recognized. In detail, the transmittance of the fabric member may be about 5% to 15%. This is because visibility is lowered when the transmittance is less than 5%, and it is difficult to adjust the brightness of the lighting device when the transmittance is 20% or more.
또한, 실시예에 따른 조명 장치는, 원단 부재가 배치된 상태에서 200 내지 600 nit의 휘도를 가질 수 있다. 휘도는 조명 장치의 밝기를 의미하며, 휘도가 높을 수록 더 밝은 화면을 가지는 것을 의미한다. 이 때, 날씨가 흐린 경우는 주간 시인성이 최소 200nit 이상, 날씨가 맑은 경우 주간 시인성이 최소 300nit 이상이 확보되어야 한다. 또한, 발광부가 600nit를 초과하는 휘도를 가지는 경우 운전자의 시야를 방해할 수 있으며, 광원의 발열이 지나치게 높아지는 문제점이 생긴다. 따라서, In addition, the lighting apparatus according to the embodiment may have a luminance of 200 to 600 nit in a state where the original member is disposed. The luminance refers to the brightness of the lighting device, and the higher the luminance, the brighter the screen. At this time, if the weather is cloudy, at least 200 nits of daytime visibility, and if the weather is clear, at least 300 nits of daytime visibility should be secured. In addition, when the light emitting unit has a luminance exceeding 600 nits, it may interfere with the driver's field of view, and the heat generation of the light source may be excessively high. therefore,
또한, 상기 원단 부재는 면, 마, 모, 비단, 석면 등 천연 섬유를 포함할 수 있으며, 폴리염화비닐, 폴리비닐알코올섬유, 폴리아미드섬유, 폴리에스테르섬유, 아크릴섬유, 나일론, 폴리에틸렌테레프탈라이트, 폴리아크릴로니크릴, 폴리프로필렌, 폴리우레탄, 폴리알킬파라옥시벤조레이트, 폴리테트라플루오르에틸렌 등 일반적으로 사용될 수 있는 모든 합성 섬유를 포함할 수 있다.In addition, the fabric member may include natural fibers such as cotton, hemp, wool, silk, asbestos, polyvinyl chloride, polyvinyl alcohol fiber, polyamide fiber, polyester fiber, acrylic fiber, nylon, polyethylene terephthalate, Polyacrylonitrile, polypropylene, polyurethane, polyalkylparaoxybenzoate, polytetrafluoroethylene, and the like, and all synthetic fibers that can be used generally.
실시예들에 따른 조명 장치는 자동차에 구비된 장치의 사용 여부에 따라 온(on) 또는 오프(off)를 결정할 수 있다. 예를 들어, 발광부는 자동차 차문 개폐에 따라 온(on) 또는 오프(off)될 수 있으며, 자동차의 안전 벨트 착용 유무에 따라 온(on) 또는 오프(off)될 수 있다.The lighting apparatus according to the embodiments may determine on or off depending on whether the apparatus provided in the vehicle is used. For example, the light emitting unit may be turned on or off according to the opening and closing of the car door, and may be turned on or off depending on whether or not the seat belt of the vehicle is worn.
도 17을 참조하면, 자동차(270)의 차문(271)이 열리는 경우, 조명 장치(1000)가 온(on)상태를 유지할 수도 있고, 주기적으로 점멸할 수도 있고, 오프(off) 상태에서 온(on) 상태로 변화할 수도 있으며, 사용자가 기 설정한 동작에 따라서 조명 장치가 발광할 수 있다. Referring to FIG. 17, when the car door 271 of the vehicle 270 is opened, the lighting device 1000 may be on, periodically blink, or be turned off. It may be changed to the on) state, the lighting device may emit light according to a user-set operation.
또한, 도 18을 참조하면, 자동차(270)의 안전벨트(272)가 착용된 경우 조명 장치(1000)가 오프(off) 상태를 유지할 수 있고, 안전벨트(272)가 착용되지 않은 경우 조명 장치가 온(on) 상태로 변화할 수도 있고, 사용자가 기 설정한 동작에 따라서 조명 장치가 발광할 수 있다. 따라서, 사용자가 주행 중에 자동차 차문이 열리거나 자동차의 안전벨트 미착용을 한번에 알아채고, 그에 대한 대응책을 빠르게 세울 수 있어, 자동차의 안전 주행에 큰 도움이 될 수 있다. 일반적인 계기판에는 수 cm 가량의 작은 크기이기 때문에 운전자 또는 보조운전자가 쉽게 알아차릴 수 없지만, 실시예에 따른 조명 장치는 크기에 관계없이 구현할 수 있기 때문에, 사용자가 쉽게 파악할 수 있는 장점이 있다.In addition, referring to FIG. 18, when the seat belt 272 of the vehicle 270 is worn, the lighting apparatus 1000 may maintain an off state, and the lighting apparatus when the seat belt 272 is not worn. The lighting apparatus may change to an on state, or the lighting apparatus may emit light according to an operation preset by the user. Therefore, the user can open the car door while driving or notice the seat belt non-wearing of the car at once, and can quickly establish a countermeasure thereof, which can be a great help in the safe driving of the car. The general instrument panel can be easily noticed by the driver or assistant driver because of the small size of about a few cm, but the lighting device according to the embodiment can be implemented regardless of the size, there is an advantage that the user can easily grasp.
실시예에 따른 조명 장치는 터치 패널이 결합되어, 터치 기능에 따른 동작을 수행할 수 있다. 실시예에 따른 조명장치는 가니시의 상부 또는 하부에 배치될 수 있다. 상기 가니시는 차량 내부 및 외부의 외관을 차체와 일체감을 가지도록 배치되는 부재일 수 있다.In the lighting apparatus according to the embodiment, the touch panel may be coupled to perform an operation according to a touch function. The lighting apparatus according to the embodiment may be disposed above or below the garnish. The varnish may be a member disposed to have a sense of unity with the vehicle body in appearance of the inside and outside of the vehicle.
도 19를 참조하면, 실시예에 따른 조명 장치(1000)는 하부 가니시(2100) 및 상부 가니시(2200) 사이에 배치될 수 있다.Referring to FIG. 19, the lighting apparatus 1000 according to the embodiment may be disposed between the lower varnish 2100 and the upper varnish 2200.
상기 하부 가니시(2100) 및 상기 상부 가니시(2200)는 플라스틱을 포함할 수 있다. 상기 하부 가니시(2100) 및 상기 상부 가니시(2200)는 플렉서블할 수 있다. 상기 하부 가니시(2100) 및 상기 상부 가니시(2200)는 곡면을 포함할 수 있다.The lower varnish 2100 and the upper varnish 2200 may include plastic. The lower varnish 2100 and the upper varnish 2200 may be flexible. The lower varnish 2100 and the upper varnish 2200 may include curved surfaces.
또한 실시예에 따른 조명장치는 별도의 상기 하부 가니시 없이, 상기 상부 가니시 하단에 배치될 수 있다.In addition, the lighting apparatus according to the embodiment may be disposed at the bottom of the upper varnish, without a separate lower varnish.
상기 상부 가니시는 반투명 또는 투명할 수 있다. 상기 상부 가니시가 투명한 경우, 상기 상부 가니시 상에 실시예의 원단부재가 배치될 수 있다. 상기 상부 가니시가 반투명 한 경우, 상기 원단부재가 생략될 수 있으며 상기 상부 가니시의 광 투과율은 3% 내지 30%일 수 있다.The upper varnish can be translucent or transparent. When the upper varnish is transparent, the fabric member of the embodiment may be disposed on the upper varnish. When the upper varnish is translucent, the fabric member may be omitted and the light transmittance of the upper varnish may be 3% to 30%.
또한, 상기 조명 장치의 상부 또는 하부에는 터치 기능을 수행하는 터치 전극을 포함하는 터치 패널(3000)이 배치될 수 있다. 상기 터치 패널(3000)은 상기 조명 장치(1000)와 대응되는 위치에 배치될 수 있다.In addition, a touch panel 3000 including a touch electrode performing a touch function may be disposed above or below the lighting device. The touch panel 3000 may be disposed at a position corresponding to the lighting apparatus 1000.
예를 들어, 상기 터치 패널은 상기 조명 장치의 상부 또는 하부에 직접 배치될 수 있고, 또는, 상기 상부 가니시(2200)의 하부에 배치될 수 있다.For example, the touch panel may be disposed directly above or below the lighting device, or may be disposed below the upper garnish 2200.
이에 따라, 차량 내부에서 터치 동작에 따라, 상기 조명 장치의 온/오프 기능 등 다양한 동작이 수행될 수 있다.Accordingly, according to a touch operation in the vehicle, various operations such as an on / off function of the lighting device may be performed.
상술한 실시예에 설명된 특징, 구조, 효과 등은 본 발명의 적어도 하나의 실시예에 포함되며, 반드시 하나의 실시예에만 한정되는 것은 아니다. 나아가, 각 실시예에서 예시된 특징, 구조, 효과 등은 실시예들이 속하는 분야의 통상의 지식을 가지는 자에 의하여 다른 실시예들에 대해서도 조합 또는 변형되어 실시 가능하다. 따라서 이러한 조합과 변형에 관계된 내용들은 본 발명의 범위에 포함되는 것으로 해석되어야 할 것이다. Features, structures, effects, and the like described in the above embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. In addition, the features, structures, effects, and the like illustrated in the embodiments may be combined or modified with respect to other embodiments by those skilled in the art to which the embodiments belong. Therefore, contents related to such combinations and modifications should be construed as being included in the scope of the present invention.
또한, 이상에서 실시예들을 중심으로 설명하였으나 이는 단지 예시일 뿐 본 발명을 한정하는 것이 아니며, 본 발명이 속하는 분야의 통상의 지식을 가진 자라면 본 실시예의 본질적인 특성을 벗어나지 않는 범위에서 이상에 예시되지 않은 여러 가지의 변형과 응용이 가능함을 알 수 있을 것이다. 예를 들어, 실시예들에 구체적으로 나타난 각 구성 요소는 변형하여 실시할 수 있는 것이다. 그리고 이러한 변형과 응용에 관계된 차이점들은 첨부한 청구 범위에서 규정하는 본 발명의 범위에 포함되는 것으로 해석되어야 할 것이다.In addition, the above description has been made with reference to the embodiments, which are merely examples and are not intended to limit the present invention, and those skilled in the art to which the present invention pertains may be illustrated as above without departing from the essential characteristics of the present embodiments. It will be appreciated that various modifications and applications are possible. For example, each component specifically shown in the embodiments may be modified. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

Claims (10)

  1. 도광판;Light guide plate;
    상기 도광판의 일 측면 상에 배치되는 발광 부재;A light emitting member disposed on one side of the light guide plate;
    상기 도광판 상부에 배치되는 패턴 부재; 및A pattern member disposed on the light guide plate; And
    상기 도광판 하부에 배치되는 반사 부재를 포함하고,A reflection member disposed below the light guide plate;
    상기 패턴 부재는 베이스 기판 및 상기 베이스 기판 상의 패턴층을 포함하고,The pattern member includes a base substrate and a pattern layer on the base substrate,
    상기 패턴층은 패턴부 및 비패턴부를 포함하고,The pattern layer includes a pattern portion and a non-pattern portion,
    상기 패턴부는 안료 및 산란 물질을 포함하는 조명 장치.The pattern unit includes a pigment and a scattering material.
  2. 제 1항에 있어서,The method of claim 1,
    상기 산란 물질은 이산화규소(SiO2) 및 이산화티탄(TiO2) 중 적어도 하나의 물질을 포함하는 조명 장치.The scattering material includes at least one material of silicon dioxide (SiO 2) and titanium dioxide (TiO 2).
  3. 제 1항에 있어서,The method of claim 1,
    상기 패턴층은 잉크 조성물을 더 포함하는 인쇄층인 조명 장치.The pattern layer is a lighting device further comprising an ink composition.
  4. 제 3항에 있어서,The method of claim 3, wherein
    상기 산란 물질은 상기 잉크 조성물 전체에 대해 1 중량% 내지 10 중량% 만큼 포함되고,The scattering material is included in an amount of about 1 wt% to about 10 wt% with respect to the entire ink composition;
    상기 안료는 상기 잉크 조성물 전체에 대해 20 중량% 내지 30 중량% 만큼 포함되는 조명 장치.And the pigment is included in an amount of 20 wt% to 30 wt% with respect to the entire ink composition.
  5. 반사 부재Reflective member
    상기 반사 부재 상에 배치되는 발광 부재; 및A light emitting member disposed on the reflective member; And
    상기 발광 부재 상에 배치되는 패턴 부재를 포함하고,A pattern member disposed on the light emitting member;
    상기 패턴 부재는 베이스 기판 및 상기 베이스 기판 상의 패턴층을 포함하고,The pattern member includes a base substrate and a pattern layer on the base substrate,
    상기 패턴층은 패턴부 및 비패턴부를 포함하고,The pattern layer includes a pattern portion and a non-pattern portion,
    상기 패턴부는 안료 및 산란 물질을 포함하는 조명 장치.The pattern unit includes a pigment and a scattering material.
  6. 제 5항에 있어서,The method of claim 5,
    상기 산란 물질은 이산화규소(SiO2) 및 이산화티탄(TiO2) 중 적어도 하나의 물질을 포함하는 조명 장치.The scattering material includes at least one material of silicon dioxide (SiO 2) and titanium dioxide (TiO 2).
  7. 제 5항에 있어서,The method of claim 5,
    상기 패턴층은 잉크 조성물을 더 포함하는 인쇄층인 조명 장치.The pattern layer is a lighting device further comprising an ink composition.
  8. 제 7항에 있어서,The method of claim 7, wherein
    상기 산란 물질은 상기 잉크 조성물 전체에 대해 1 중량% 내지 10 중량% 만큼 포함되고,The scattering material is included in an amount of about 1 wt% to about 10 wt% with respect to the entire ink composition;
    상기 안료는 상기 잉크 조성물 전체에 대해 20 중량% 내지 40 중량% 만큼 포함되는 조명 장치.And the pigment is included in an amount of 20 wt% to 40 wt% with respect to the entire ink composition.
  9. 도광판;Light guide plate;
    상기 도광판의 일 측면 상에 배치되는 발광 부재;A light emitting member disposed on one side of the light guide plate;
    상기 도광판과 인접하며 배치되는 반사 부재;A reflective member disposed adjacent to the light guide plate;
    상기 도광판 상에 배치되는 확산 부재; 및A diffusion member disposed on the light guide plate; And
    상기 확산 부재 상에 배치되는 인쇄 부재를 포함하고,A printing member disposed on the diffusion member,
    상기 인쇄 부재는 패턴 영역 및 비패턴 영역을 포함하고,The printing member includes a pattern region and a non-pattern region,
    상기 반사 부재는 상기 패턴 영역과 중첩되지 않는 조명 장치.And the reflective member does not overlap the pattern region.
  10. 제 9항에 있어서,The method of claim 9,
    상기 반사 부재는 상기 발광 부재 및 상기 도광판의 하부에 배치되는 제 1 반사 부재; 및The reflective member may include a first reflective member disposed below the light emitting member and the light guide plate; And
    상기 도광판의 적어도 일 측면 상에 배치되는 제 2 반사 부재를 포함하고,A second reflective member disposed on at least one side of the light guide plate;
    상기 도광판은 상기 광원과 마주보는 제 1 측면;The light guide plate has a first side facing the light source;
    상기 제 1 측면과 반대되는 제 2 측면; 및A second side opposite to the first side; And
    상기 제 1 측면 및 상기 제 2 측면을 연결하는 제 3 측면 및 제 4 측면을 포함하고,A third side and a fourth side connecting the first side and the second side;
    상기 제 2 반사 부재는 상기 제 2 측면, 상기 제 3 측면 및 상기 제 4 측면 중 적어도 하나의 측면 상에 배치되는 조명 장치.And the second reflecting member is disposed on at least one side of the second side, the third side, and the fourth side.
PCT/KR2017/004678 2016-05-03 2017-05-02 Lighting apparatus WO2017191996A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020160054816A KR102488598B1 (en) 2016-05-03 2016-05-03 Lighting apparatus
KR10-2016-0054816 2016-05-03
KR10-2016-0056496 2016-05-09
KR1020160056496A KR102595093B1 (en) 2016-05-09 2016-05-09 Lighting apparatus

Publications (2)

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WO2017191996A2 true WO2017191996A2 (en) 2017-11-09
WO2017191996A3 WO2017191996A3 (en) 2018-08-09

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101005107B1 (en) * 2009-11-09 2010-12-30 (주)디비전 Led lighting display apparatus
KR20130023564A (en) * 2011-08-29 2013-03-08 케이에스씨비 주식회사 Light transmitting/diffusive ink composition
KR101934427B1 (en) * 2012-05-31 2019-01-03 엘지이노텍 주식회사 Illuminating device
KR20130098244A (en) * 2013-06-28 2013-09-04 케이에스씨비 주식회사 Light diffusive ink composition and light guide panel unit using the same
KR20150085403A (en) * 2014-01-15 2015-07-23 정 호 조 Signboard For Slim type Advertisement

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