WO2014163321A1 - Led illumination unit for electronic display board - Google Patents

Led illumination unit for electronic display board Download PDF

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Publication number
WO2014163321A1
WO2014163321A1 PCT/KR2014/002549 KR2014002549W WO2014163321A1 WO 2014163321 A1 WO2014163321 A1 WO 2014163321A1 KR 2014002549 W KR2014002549 W KR 2014002549W WO 2014163321 A1 WO2014163321 A1 WO 2014163321A1
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WO
WIPO (PCT)
Prior art keywords
light emitting
led lighting
light
lighting unit
emitting array
Prior art date
Application number
PCT/KR2014/002549
Other languages
French (fr)
Korean (ko)
Inventor
한태용
신선웅
강민
Original Assignee
서울반도체 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
Application filed by 서울반도체 주식회사 filed Critical 서울반도체 주식회사
Publication of WO2014163321A1 publication Critical patent/WO2014163321A1/en

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/03—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light
    • F21S9/032—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light the solar unit being separate from the lighting unit
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/02—Signs, boards, or panels, illuminated by artificial light sources positioned in front of the insignia
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
    • G09F27/007—Displays with power supply provided by solar cells or photocells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/40—Light sources with three-dimensionally disposed light-generating elements on the sides of polyhedrons, e.g. cubes or pyramids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs

Definitions

  • the present invention relates to an LED lighting unit for an electric signboard, and more particularly to an LED lighting unit for an electric signboard that can improve light efficiency and provide uniform light.
  • the electronic signboard is used as a means of transmitting text and images to an unspecified number.
  • the display board is used in various places as a guide function or an advertisement function.
  • billboards used in outdoor advertising are billboards, Panaplex, Trivision, etc., and large LED billboards have been used in recent years.
  • the LED display board is disposed in the entire rear surface of the display surface according to the position of the light source for providing light to provide a light to the entire display surface, and the light in the screen direction from the upper, lower or side of the front surface of the display surface. It can be divided into the front lighting method to provide.
  • the front lighting method has an advantage of providing light at a low cost with a smaller number of LED lighting units for electronic display boards than the rear lighting method.
  • the LED lighting unit for the front panel illumination method is provided at the edge of the display surface to provide light, it is difficult to provide uniform luminance over the entire front surface of the display surface. That is, the general LED lighting panel of the front lighting method has a problem in that the display quality is deteriorated because it provides non-uniform brightness according to the distance between the LED lighting unit for the display panel and the front surface of the display surface.
  • the problem to be solved by the present invention is to control the brightness of the plurality of light emitting arrays that provide light according to the distance between the LED lighting unit for the display panel from the front surface of the display surface, thereby the LED lighting unit for the display panel and the display surface
  • the luminance difference due to the distance difference of each region may be compensated for.
  • the LED lighting unit for an electronic display panel of the present invention has an advantage of improving display quality and light efficiency by providing uniform luminance over the entire area of the front surface of the display surface.
  • An LED lighting unit for an electronic display panel positioned at an edge of a front surface of a display surface to provide light comprising: a plurality of light emitting arrays providing light to a plurality of areas of the display surface; And a support part supporting the light emitting arrays, wherein the light emitted from the light emitting arrays has different luminance from each other in the plurality of regions of the display surface. Therefore, it is possible to realize uniform luminance over the entire area of the front surface of the display surface and to improve light efficiency.
  • the support portion includes at least two inclined surfaces on one surface, and the light emitting arrays are separately located on the inclined surfaces.
  • the support further includes a heat sink on the other side.
  • the support portion includes first and second inclined surfaces that are symmetrical to each other on one surface.
  • the light emitting arrays include a first light emitting array located on the first inclined plane and a second light emitting array located on the second inclined plane.
  • the display surface is divided into first and second regions, the first light emitting array provides light to the first area, the second light emitting array provides light to the second area, and the first light emission.
  • the brightness of the second light emitting array is higher than the brightness of the array.
  • the first and second light emitting arrays are located closer to the first region than to the second region.
  • the first and second light emitting arrays may be driven by the same driving voltage or driving current, and further include a luminance reducing film covering the first light emitting array on the first inclined surface.
  • the first and second light emitting arrays are driven by the same driving voltage or driving current, and the number of the second light emitting diodes is greater than the number of the first light emitting diodes.
  • first driver for driving the first light emitting array and a second driver for driving the second light emitting array, wherein the driving voltage or driving current of the second driving part is the driving voltage or driving current of the first driving part.
  • the support portion has a center surface on one surface and first and second inclined surfaces that are symmetrical with respect to the center surface,
  • the center plane corresponds to the longitudinal direction of the support part horizontally with one surface of the support part.
  • the light emitting arrays may include: a first light emitting array positioned on the first inclined surface; A second light emitting array located on the center plane; And a third light emitting array positioned on the second inclined surface.
  • the display surface is divided into first to third regions, the first light emitting array provides light to the first area, the second light emitting array provides light to the second area, and the third light emission.
  • the array provides light to a third region, and has a higher luminance from the first light emitting array to the third light emitting array.
  • the first to third light emitting arrays are located closer to the first region than to the third region.
  • the solar cell may further include a solar cell configured to provide a power supply voltage for driving the first and second light emitting arrays.
  • the LED lighting unit for the LED display according to the present invention individually controls the driving signals of the plurality of light emitting arrays, thereby compensating the luminance difference for each region due to the distance difference between the LED lighting unit for the LED display and the display surface. can do.
  • the LED lighting unit for an electronic display panel of the present invention has an advantage of improving display quality and light efficiency by providing uniform luminance over the entire area of the front surface of the display surface.
  • the LED lighting unit for the electronic display panel of the present invention is provided with a luminance reducing film on at least one of the plurality of light emitting array, the luminance difference for each region due to the difference in distance between the LED lighting unit for the electronic display panel and the display surface To compensate.
  • the LED lighting unit for the LED board has an advantage of simplifying a driving circuit since the luminance difference for each region is compensated by the distance difference between the LED lighting unit for the LED board and the display surface by the luminance reducing film.
  • the LED lighting unit for the display panel of the present invention by adjusting the number of light emitting diodes of at least one light emitting array of the plurality of light emitting array area by the distance difference between the LED lighting unit for the display panel and the display surface Compensation for the star brightness can be compensated.
  • the LED lighting unit for the display panel of the present invention is provided with a solar cell for supplying a power voltage and a mobile unit for moving in the horizontal direction of the display surface, so that wiring from a power source for separate driving is provided. It is unnecessary and has the advantage of being able to easily control the amount of light in the horizontal direction of the display surface.
  • FIG. 1 is a cross-sectional view of a signboard including an LED lighting unit for a signboard according to a first embodiment of the present invention.
  • FIG. 2 is a perspective view illustrating the LED lighting unit for the electronic display board of FIG. 1.
  • FIG. 3 is a diagram illustrating a path of light provided on the display surface of FIG. 1.
  • FIG. 4 is a view schematically showing an LED lighting unit for an electronic sign of FIG. 1.
  • FIG. 5 is a perspective view illustrating an LED lighting unit for an electric sign board according to a second embodiment of the present invention.
  • FIG. 6 is a diagram illustrating a path of light provided on the display surface of FIG. 5.
  • FIG. 7 is a cross-sectional view of an LED lighting unit for an electric sign board according to a third embodiment of the present invention.
  • FIG. 8 is a cross-sectional view of an LED lighting unit for an electric sign board according to a fourth exemplary embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of an LED lighting unit for a signboard according to a fifth exemplary embodiment of the present invention.
  • FIG. 1 is a cross-sectional view of a signboard including an LED lighting unit for a signboard according to a first embodiment of the present invention
  • FIG. 2 is a perspective view showing the LED lighting unit for a signboard of FIG. 1.
  • the electronic display panel 100 includes a display surface 110, an LED lighting unit 150 for an electronic display panel, and an LED lighting for the electronic display panel 110 on the display surface 110. It includes a connecting portion 115 for coupling the unit 150.
  • the LED lighting unit 150 for the afterglow plate has been described as being limited to an upper portion of the front surface of the display surface 110, the present invention is not limited thereto.
  • An edge such as a lower portion, a side portion, or a corner of the display surface 110 is described. It can be installed in a variety of locations, including.
  • the LED lighting unit 150 for the signboard includes first and second light emitting arrays 156 and 157 and a support part 151.
  • the support part 151 includes first and second inclined surfaces 152 and 153 located on one surface and a heat sink 159 located on the other surface.
  • the support part 151 is made of a material having excellent thermal conductivity.
  • the first and second inclined surfaces 152 and 153 may be symmetrical with each other. That is, the first and second inclined surfaces 152 and 153 are symmetrical with each other along the longitudinal direction of the support part 151 and have a prism shape where one side meets.
  • the first and second inclined surfaces 152 and 153 may be integrally formed with the support 151 or a separate structure separated from the support 151 may be coupled to the support 151.
  • the heat sink 159 is located on the other surface of the support part 151 and has a plurality of protruding structures.
  • the heat sink 159 having a plurality of projecting structures is limited and described.
  • the present invention is not limited thereto, and other configurations having a heat dissipation effect may also be applied.
  • the first light emitting array 156 is positioned on the first inclined surface 152.
  • the first light emitting array 156 may include a lens that is spaced apart at regular intervals along the longitudinal direction of the first inclined surface 152 and that extends an irradiation angle or a lens that refracts light in a desired direction.
  • the second light emitting array 157 is positioned on the second inclined surface 153.
  • the second light emitting array 157 may include a lens that is spaced apart at regular intervals along the length direction of the second inclined surface 153, and which extends an irradiation angle or refracts light in a desired direction.
  • the first and second light emitting arrays 156 and 157 provide light to different areas on the front surface of the display surface 110 and have different luminance. To this end, the first and second light emitting arrays 156 and 157 are driven by different driving signals (driving voltage or driving current).
  • FIG. 3 is a diagram illustrating a path of light provided on the display surface of FIG. 1
  • FIG. 4 is a diagram schematically illustrating an LED lighting unit for an electronic display panel of FIG. 1.
  • the display surface 110 may be divided into first and second regions FA and SA in the vertical direction of the front surface.
  • the LED lighting unit 150 for the display board is positioned adjacent to the upper end of the front surface of the display surface (110).
  • the LED lighting unit 150 for the display board is located adjacent to the first area FA. That is, the LED lighting unit 150 for the signboard is located closer to the first area FA than the second area SA.
  • the LED lighting unit 150 for the display board includes the first and second light emitting arrays 156 and 157, the first and second driving units 103 and 105, and the controller 101.
  • the first light emitting array 156 is driven by the first driver 103, and the second light emitting array 157 is driven by the second driver 105. That is, the first and second light emitting arrays 156 and 157 may be driven separately.
  • the first and second drivers 103 and 105 provide different driving signals (driving voltage or driving current) to the first and second light emitting arrays 156 and 157 according to control signals of the controller 101. .
  • the LED lighting unit 150 for the electronic display panel and the first and second regions FA and SA are used. The luminance difference according to the distance of) can be compensated for.
  • the brightness of the first and second light emitting arrays 156 and 157 is adjusted according to the distance difference between the first and second regions FA and SA of the LED lighting unit 150.
  • the first light emitting array 156 has a first brightness S1
  • the second light emitting array 157 has a second brightness S2 higher than the first brightness S1.
  • the present invention compensates the luminance difference for each region due to the distance difference between the LED lighting unit 150 for the display board 110 and the display surface 110 by individually controlling the driving signals of the first and second light emitting arrays 156 and 157. can do.
  • the LED lighting unit 150 for the electronic display panel of the present invention has an advantage of improving display quality and light efficiency by providing uniform luminance to the entire front surface area of the display surface 110.
  • FIG. 5 is a perspective view illustrating an LED lighting unit for an electronic display panel according to a second embodiment of the present invention
  • FIG. 6 is a view illustrating a path of light provided on the display surface of FIG. 5.
  • the LED lighting unit 250 includes a support part 251 and first to third light emitting arrays 256, 257, and 258. .
  • the support part 251 includes a center surface 253 located on one surface, first and second inclined surfaces 252 and 254, and a heat sink 259 located on the other surface.
  • the support part 251 is made of a material having excellent thermal conductivity.
  • the center plane 253 corresponds to the longitudinal direction of the support part 251 horizontally with one surface of the support part 251.
  • the first and second inclined surfaces 252 and 254 may be symmetrical with each other with the center surface 253 interposed therebetween.
  • the center surface 253 and the first and second inclined surfaces 252 and 254 may be integrally formed with the support part 251 or a separate structure separated from the support part 251 may be coupled to the support part 251. have.
  • the heat sink 259 is positioned on the other surface of the support part 251 and has a plurality of protruding structures.
  • the heat sinks 259 having a plurality of projecting structures are limited and described.
  • the present invention is not limited thereto, and other configurations having a heat dissipation effect may also be applied.
  • the first light emitting array 256 is positioned on the first inclined surface 252.
  • the first light emitting array 256 may include a lens that is spaced apart at regular intervals along the length direction of the first inclined surface 252, and which extends an irradiation angle or refracts light in a desired direction.
  • the second light emitting array 257 is positioned on the center plane 253.
  • the second light emitting array 257 may be spaced apart at regular intervals along the longitudinal direction of the center plane 253, and may include a lens for refracting light in a desired direction or a lens for widening an irradiation angle.
  • the third light emitting array 258 is positioned on the second inclined surface 254.
  • the third light emitting array 258 may include a lens that is spaced apart at regular intervals along the longitudinal direction of the second inclined surface 254, and that extends an irradiation angle or a lens that refracts light in a desired direction.
  • the first to third light emitting arrays 256, 257, and 258 provide light to different areas on the front surface of the display surface 110 and have different luminance. To this end, the first to third light emitting arrays 256, 257, and 258 are driven by different driving voltages or driving currents.
  • the display surface 110 may be divided into first to third regions FA, SA, and TA in the vertical direction of the front surface.
  • the LED lighting unit 250 for the display board is positioned adjacent to the upper end of the front surface of the display surface (110).
  • the LED lighting unit 250 for the display board is located adjacent to the first area FA. That is, the LED lighting unit 250 for the signboard is located closer to the first area FA from the third area TA.
  • the luminance of the first to third light emitting arrays 256, 257, and 258 is adjusted according to the distance difference between the first to third areas FA, SA, and TA in the LED lighting unit 250.
  • the first light emitting array 256 has a first brightness S1
  • the second light emitting array 257 has a second brightness S2 that is higher than the first brightness S1
  • the third light emitting array 258 has a third luminance S3 that is higher than the second luminance S2.
  • the luminance for each region is determined by the distance difference between the LED lighting unit 250 and the display surface 110. You can compensate the car.
  • the LED lighting unit 250 for the electronic display panel of the present invention has an advantage of improving display quality and light efficiency by providing uniform luminance over the entire area of the front surface of the display surface 110.
  • FIG. 7 is a cross-sectional view of an LED lighting unit for an electric sign board according to a third embodiment of the present invention.
  • the LED lighting unit 350 according to the third embodiment of the present invention has a configuration except for the luminance reduction film 355 covering the first light emitting array 356. Since the LED lighting unit (150 of FIG. 2) according to the first embodiment of the present invention is the same, a detailed description thereof will be omitted.
  • the LED lighting unit 350 for the display board includes first and second inclined surfaces 352 and 353 which are symmetrical to each other on one surface of the support 351, and a first light emitting array 356 positioned on the first inclined surface 352. ) And a second light emitting array 357 positioned on the second inclined surface 353.
  • the first and second light emitting arrays 356 and 357 have the same luminance by driving signals (driving voltage or driving current) having the same level.
  • the luminance reducing film 355 is positioned on the first inclined surface 352 to reduce the luminance of the first light emitting array 356.
  • the luminance reducing film 355 has a function of reducing the amount of light emitted by total reflection and absorption of a portion of the light generated from the first light emitting array 356.
  • the LED lighting unit 350 is the first light emitting array positioned at the shortest distance between the LED roughening unit 350 and the display surface according to the area difference of the display surface.
  • the luminance reducing film 355 may be provided to reduce the luminance of the display unit 356 to compensate for the luminance difference for each region due to the distance difference between the LED lighting unit 350 and the display surface.
  • the LED lighting unit 350 of the present invention has an advantage of improving display quality and light efficiency by providing uniform luminance to the entire front surface area of the display surface.
  • the LED lighting unit 350 for the display board compensates for the luminance difference for each region due to the distance difference between the LED lighting unit 350 for the display board and the display surface using only the brightness reduction film 355, the first embodiment of the present invention is implemented.
  • Example of the LED lighting unit for the display board (150 of FIG. 2) has the advantage that can simplify the drive circuit.
  • FIG. 8 is a cross-sectional view of an LED lighting unit for an electric sign board according to a fourth exemplary embodiment of the present invention.
  • the LED lighting unit 550 may include first and second inclined surfaces 552 and 553 which are symmetrical to each other, and are disposed on the first inclined surface 552.
  • a first light emitting array 556 and a second light emitting array 557 positioned on the second inclined surface 553.
  • the first and second light emitting arrays 556 and 557 may be driven by the same driving signal (driving voltage or driving current).
  • the second light emitting array 557 includes a greater number of light emitting diodes than the first light emitting array 556.
  • the first light emitting array 556 provides light to a first area defined as an upper front side of a display surface
  • the second light emitting array 557 provides light to a second area defined as a lower front surface of the display surface. to provide.
  • the second area has a distance farther from the LED lighting unit for the electronic display board than the first area.
  • the LED lighting unit 550 for the display panel provides light to the second region according to the distance difference between the first and second regions of the display surface and the LED lighting unit for the display panel.
  • the second light emitting array 557 having a larger number of light emitting diodes than the light emitting array 556, the luminance difference for each region due to the distance difference between the LED lighting unit 550 for the display board and the display surface can be compensated for.
  • the LED lighting unit 550 for the electronic display of the present invention has an advantage of improving display quality and light efficiency by providing uniform luminance to the entire front surface area of the display surface.
  • the LED lighting unit 550 for the display panel compensates for the luminance difference for each region due to the distance between the LED lighting unit 550 for the display panel and the display surface by adjusting the number of light emitting diodes of the second light emitting array 557. Therefore, there is an advantage that the driving circuit can be simplified than the LED lighting unit (150 of FIG. 2) of the first embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of an LED lighting unit for a signboard according to a fifth exemplary embodiment of the present invention.
  • the LED lighting unit 650 for the LED panel according to the fifth embodiment of the present invention has a configuration except for the solar cell 690 and the mobile unit 670 for providing a power supply voltage. Since it is the same as the LED lighting unit 150 of FIG. 2 according to the first embodiment of the present invention, a detailed description thereof will be omitted.
  • the solar cell 690 is installed in each of the LED lighting units 650 for the display board.
  • the present invention is not limited thereto, and the number of the solar cells 690 may be changed.
  • the moving unit 670 moves the LED lighting unit 650 for the electronic display board in the horizontal direction on the front surface of the display surface.
  • the mobile unit 670 may be used to adjust luminance in a horizontal direction on the front surface of the display surface 110.
  • the moving unit 670 moves the LED lighting unit 650 for the electronic display panel located on the left side of the display surface 110 to the right side so that light is concentrated on the right side of the display surface 110.
  • the amount of light in the horizontal direction can be controlled.
  • the LED lighting unit 650 for the display board according to the fifth embodiment of the present invention is driven by receiving a power supply voltage through the solar cell 690, wiring from a power supply for separate driving is unnecessary.
  • the LED lighting unit 350 for the display board according to the fifth embodiment is further provided with a moving unit 670 has an advantage that can easily control the amount of light in the horizontal direction of the display surface 110.
  • the LED lighting unit for LED display according to the first to the fifth embodiment is not limited to the configuration, and may further include an outer case for protection from the outside.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • General Engineering & Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The present invention discloses an LED illumination unit for an electronic display unit which can supply a uniform light with improved light efficiency. An LED illumination unit arranged in the edges of the face of a display screen for supplying according to the present invention includes a plurality of light-emitting arrays for supplying a light a plurality of regions of the display screen, and a support part for supporting the light-emitting arrays, wherein the light-emitting arrays have a brightness different from one another according to the plurality of regions of the display screen. Thus, the present invention provides a uniform brightness over the whole regions of the display screen, improving the display quality and the light efficiency.

Description

전광판용 엘이디 조명 유닛LED lighting unit for electronic sign
본 발명은 전광판용 엘이디 조명 유닛에 관한 것으로, 특히 광 효율을 향상시킬 수 있을 뿐만 아니라 균일한 광을 제공할 수 있는 전광판용 엘이디 조명 유닛에 관한 것이다.The present invention relates to an LED lighting unit for an electric signboard, and more particularly to an LED lighting unit for an electric signboard that can improve light efficiency and provide uniform light.
일반적으로 전광판은 불특정 다수에게 문자 및 이미지를 전달하는 수단으로 사용된다. 상기 전광판은 안내 기능 또는 광고 기능으로 다양한 장소에서 사용된다.In general, the electronic signboard is used as a means of transmitting text and images to an unspecified number. The display board is used in various places as a guide function or an advertisement function.
일반적으로 옥외 광고에 사용되는 전광판은 빌보드, 파나플렉스, 트라이 비젼 등이 있으며, 최근 들어 대형 LED 전광판이 많이 사용되고 있다.In general, billboards used in outdoor advertising are billboards, Panaplex, Trivision, etc., and large LED billboards have been used in recent years.
상기 LED 전광판은 광을 제공하는 광원의 위치에 따라 표시면의 후면 전체에 배치되어 상기 표시면 전체에 광을 제공하는 후면 조명 방식과, 표시면의 앞면 상부 또는 하부 또는 측부에서 화면방향으로 광을 제공하는 앞면 조명 방식으로 구분될 수 있다.The LED display board is disposed in the entire rear surface of the display surface according to the position of the light source for providing light to provide a light to the entire display surface, and the light in the screen direction from the upper, lower or side of the front surface of the display surface. It can be divided into the front lighting method to provide.
상기 앞면 조명 방식은 후면 조명 방식보다 전광판용 엘이디 조명 유닛의 적은 개수로 저비용으로 광을 제공할 수 있는 장점을 갖는다.The front lighting method has an advantage of providing light at a low cost with a smaller number of LED lighting units for electronic display boards than the rear lighting method.
그러나, 앞면 조명 방식의 전광판용 엘이디 조명 유닛은 표시면의 가장자리에 구비되어 광을 제공하므로 표시면의 앞면 전체에 균일한 휘도를 제공하기 어려운 문제가 있었다. 즉, 일반적인 앞면 조명 방식의 LED 전광판은 전광판용 엘이디 조명 유닛과 표시면의 앞면의 이격된 거리에 따라 불균일한 휘도를 제공하므로 표시품질이 저하되는 문제가 있었다.However, since the LED lighting unit for the front panel illumination method is provided at the edge of the display surface to provide light, it is difficult to provide uniform luminance over the entire front surface of the display surface. That is, the general LED lighting panel of the front lighting method has a problem in that the display quality is deteriorated because it provides non-uniform brightness according to the distance between the LED lighting unit for the display panel and the front surface of the display surface.
본 발명이 해결하고자 하는 과제는 표시면의 앞면으로부터 전광판용 엘이디 조명 유닛 사이의 이격된 거리에 따라 광을 제공하는 복수의 발광 어레이들의 휘도를 상이하게 제어함으로써, 상기 전광판용 엘이디 조명 유닛과 표시면의 영역별 거리 차에 의한 휘도 차를 보상할 수 있다.The problem to be solved by the present invention is to control the brightness of the plurality of light emitting arrays that provide light according to the distance between the LED lighting unit for the display panel from the front surface of the display surface, thereby the LED lighting unit for the display panel and the display surface The luminance difference due to the distance difference of each region may be compensated for.
따라서, 본 발명의 전광판용 엘이디 조명 유닛은 표시면 앞면의 전체 영역에 균일한 휘도를 제공함으로써, 표시 품질 및 광 효율을 향상시킬 수 있는 장점을 갖는다.Accordingly, the LED lighting unit for an electronic display panel of the present invention has an advantage of improving display quality and light efficiency by providing uniform luminance over the entire area of the front surface of the display surface.
표시면 앞면의 가장자리에 위치하여 광을 제공하는 전광판용 엘이디 조명 유닛에 있어서, 상기 표시면의 복수의 영역에 광을 제공하는 복수의 발광 어레이; 및 상기 발광 어레이들을 지지하는 지지부를 포함하고, 상기 발광 어레이들로부터 발광된 광은 상기 표시면의 상기 복수의 영역별로 서로 상이한 휘도를 갖는다. 따라서, 표시면 앞면 전체 영역에 대해 균일한 휘도를 구현함과 동시에 광 효율을 향상시킬 수 있다.An LED lighting unit for an electronic display panel positioned at an edge of a front surface of a display surface to provide light, the LED lighting unit comprising: a plurality of light emitting arrays providing light to a plurality of areas of the display surface; And a support part supporting the light emitting arrays, wherein the light emitted from the light emitting arrays has different luminance from each other in the plurality of regions of the display surface. Therefore, it is possible to realize uniform luminance over the entire area of the front surface of the display surface and to improve light efficiency.
상기 지지부는 일면 상에 적어도 2 이상의 경사면을 포함하고, 상기 발광 어레이들은 상기 경사면 상에 각각 분리되어 위치한다.The support portion includes at least two inclined surfaces on one surface, and the light emitting arrays are separately located on the inclined surfaces.
상기 지지부는 타면 상에 히트 싱크를 더 포함한다.The support further includes a heat sink on the other side.
상기 지지부는 일면 상에 서로 대칭되는 제1 및 제2 경사면을 포함한다.The support portion includes first and second inclined surfaces that are symmetrical to each other on one surface.
상기 발광 어레이들은 상기 제1 경사면에 위치한 제1 발광 어레이 및 상기 제2 경사면에 위치한 제2 발광 어레이를 포함한다.The light emitting arrays include a first light emitting array located on the first inclined plane and a second light emitting array located on the second inclined plane.
상기 표시면은 제1 및 제2 영역으로 구분되고, 상기 제1 발광 어레이는 상기 제1 영역에 광을 제공하고, 상기 제2 발광 어레이는 상기 제2 영역에 광을 제공하고, 상기 제1 발광 어레이의 휘도보다 상기 제2 발광 어레이의 휘도가 더 높다.The display surface is divided into first and second regions, the first light emitting array provides light to the first area, the second light emitting array provides light to the second area, and the first light emission. The brightness of the second light emitting array is higher than the brightness of the array.
상기 제1 및 제2 발광 어레이는 상기 제2 영역보다 상기 제1 영역과 더 가깝게 위치한다.The first and second light emitting arrays are located closer to the first region than to the second region.
상기 제1 및 제2 발광 어레이는 동일한 구동전압 또는 구동전류에 의해 구동되고, 상기 제1 경사면 상에는 상기 제1 발광 어레이를 덮는 휘도 감소 필름을 더 포함한다.The first and second light emitting arrays may be driven by the same driving voltage or driving current, and further include a luminance reducing film covering the first light emitting array on the first inclined surface.
상기 제1 및 제2 발광 어레이는 동일한 구동전압 또는 구동전류에 의해 구동되고, 상기 제2 발광 다이오드의 개수는 상기 제1 발광 다이오드의 개수보다 많다.The first and second light emitting arrays are driven by the same driving voltage or driving current, and the number of the second light emitting diodes is greater than the number of the first light emitting diodes.
상기 제1 발광 어레이를 구동시키는 제1 구동부와, 상기 제2 발광 어레이를 구동시키는 제2 구동부를 더 포함하고, 상기 제2 구동부의 구동전압 또는 구동전류는 상기 제1 구동부의 구동전압 또는 구동전류보다 크다.And a first driver for driving the first light emitting array and a second driver for driving the second light emitting array, wherein the driving voltage or driving current of the second driving part is the driving voltage or driving current of the first driving part. Greater than
상기 지지부는 일면 상에 중심면과, 상기 중심면을 기준으로 서로 대칭되는 제1 및 제2 경사면을 갖는다,The support portion has a center surface on one surface and first and second inclined surfaces that are symmetrical with respect to the center surface,
상기 중심면은 상기 지지부의 일면과 수평하게 상기 지지부의 길이방향과 대응된다.The center plane corresponds to the longitudinal direction of the support part horizontally with one surface of the support part.
상기 발광 어레이들은 상기 제1 경사면 상에 위치한 제1 발광 어레이; 상기 중심면 상에 위치한 제2 발광 어레이; 및 상기 제2 경사면에 위치한 제3 발광 어레이를 포함한다.The light emitting arrays may include: a first light emitting array positioned on the first inclined surface; A second light emitting array located on the center plane; And a third light emitting array positioned on the second inclined surface.
상기 표시면은 제1 내지 제3 영역으로 구분되고, 상기 제1 발광 어레이는 상기 제1 영역에 광을 제공하고, 상기 제2 발광 어레이는 상기 제2 영역에 광을 제공하고, 상기 제3 발광 어레이는 제3 영역에 광을 제공하고, 상기 제1 발광 어레이로부터 상기 제3 발광 어레이로 갈수록 높은 휘도를 갖는다.The display surface is divided into first to third regions, the first light emitting array provides light to the first area, the second light emitting array provides light to the second area, and the third light emission. The array provides light to a third region, and has a higher luminance from the first light emitting array to the third light emitting array.
상기 제1 내지 제3 발광 어레이는 상기 제3 영역보다 상기 제1 영역과 더 가깝게 위치한다.The first to third light emitting arrays are located closer to the first region than to the third region.
상기 표시면의 수평한 방향으로 상기 지지부를 이동시키는 이동유닛을 더 포함한다.It further comprises a moving unit for moving the support in the horizontal direction of the display surface.
상기 제1 및 제2 발광 어레이를 구동시키는 전원전압을 제공하는 태양 전지를 더 포함한다.The solar cell may further include a solar cell configured to provide a power supply voltage for driving the first and second light emitting arrays.
상기 제1 및 제2 발광 어레이를 보호하기 위한 보호 커버를 더 포함한다.And a protective cover for protecting the first and second light emitting arrays.
본 발명의 실시예들에 따르면, 본 발명의 전광판용 엘이디 조명 유닛은 복수의 발광 어레이의 구동신호를 개별적으로 제어함으로써, 전광판용 엘이디 조명 유닛과 표시면의 거리 차에 의한 영역별 휘도 차를 보상할 수 있다.According to the embodiments of the present invention, the LED lighting unit for the LED display according to the present invention individually controls the driving signals of the plurality of light emitting arrays, thereby compensating the luminance difference for each region due to the distance difference between the LED lighting unit for the LED display and the display surface. can do.
따라서, 본 발명의 전광판용 엘이디 조명 유닛은 표시면 앞면의 전체 영역에 균일한 휘도를 제공함으로써, 표시 품질 및 광 효율을 향상시킬 수 있는 장점을 갖는다.Accordingly, the LED lighting unit for an electronic display panel of the present invention has an advantage of improving display quality and light efficiency by providing uniform luminance over the entire area of the front surface of the display surface.
본 발명의 다른 실시예들에 따르면, 본 발명의 전광판용 엘이디 조명 유닛은 복수의 발광 어레이 중 적어도 하나에 휘도 감소 필름이 구비되어 전광판용 엘이디 조명 유닛과 표시면의 거리 차에 의한 영역별 휘도 차를 보상할 수 있다. 또한, 상기 전광판용 엘이디 조명 유닛은 상기 휘도 감소 필름에 의해 상기 전광판용 엘이디 조명 유닛과 표시면의 거리 차에 의한 영역별 휘도 차가 보상되므로 구동회로를 간소화할 수 있는 장점을 갖는다.According to other embodiments of the present invention, the LED lighting unit for the electronic display panel of the present invention is provided with a luminance reducing film on at least one of the plurality of light emitting array, the luminance difference for each region due to the difference in distance between the LED lighting unit for the electronic display panel and the display surface To compensate. In addition, the LED lighting unit for the LED board has an advantage of simplifying a driving circuit since the luminance difference for each region is compensated by the distance difference between the LED lighting unit for the LED board and the display surface by the luminance reducing film.
본 발명의 다른 실시예들에 따르면, 본 발명의 전광판용 엘이디 조명 유닛은 복수의 발광 어레이 중 적어도 하나의 발광 어레이의 발광 다이오드 개수를 조절하여 전광판용 엘이디 조명 유닛과 표시면의 거리 차에 의한 영역별 휘도 차를 보상할 수 있다.According to other embodiments of the present invention, the LED lighting unit for the display panel of the present invention by adjusting the number of light emitting diodes of at least one light emitting array of the plurality of light emitting array area by the distance difference between the LED lighting unit for the display panel and the display surface Compensation for the star brightness can be compensated.
본 발명의 다른 실시예들에 따르면, 본 발명의 전광판용 엘이디 조명 유닛은 전원전압을 공급하는 태양 전지와 표시면의 수평방향으로 이동시키는 이동 유닛이 구비되어 별도의 구동을 위한 전원으로부터의 배선이 불필요하고, 표시면의 수평방향으로의 광량을 쉽게 제어할 수 있는 장점을 갖는다.According to other embodiments of the present invention, the LED lighting unit for the display panel of the present invention is provided with a solar cell for supplying a power voltage and a mobile unit for moving in the horizontal direction of the display surface, so that wiring from a power source for separate driving is provided. It is unnecessary and has the advantage of being able to easily control the amount of light in the horizontal direction of the display surface.
도 1은 본 발명의 제1 실시예에 따른 전광판용 엘이디 조명 유닛을 포함하는 전광판을 도시한 단면도이다.FIG. 1 is a cross-sectional view of a signboard including an LED lighting unit for a signboard according to a first embodiment of the present invention.
도 2는 도 1의 전광판용 엘이디 조명 유닛을 도시한 사시도이다.FIG. 2 is a perspective view illustrating the LED lighting unit for the electronic display board of FIG. 1.
도 3은 도 1의 표시면에 제공되는 광의 경로를 도시한 도면이다.3 is a diagram illustrating a path of light provided on the display surface of FIG. 1.
도 4는 도 1의 전광판용 엘이디 조명 유닛을 개략적으로 도시한 도면이다.FIG. 4 is a view schematically showing an LED lighting unit for an electronic sign of FIG. 1.
도 5는 본 발명의 제2 실시예에 따른 전광판용 엘이디 조명 유닛을 도시한 사시도이다.FIG. 5 is a perspective view illustrating an LED lighting unit for an electric sign board according to a second embodiment of the present invention. FIG.
도 6은 도 5의 표시면에 제공되는 광의 경로를 도시한 도면이다.6 is a diagram illustrating a path of light provided on the display surface of FIG. 5.
도 7은 본 발명의 제3 실시예에 따른 전광판용 엘이디 조명 유닛을 도시한 단면도이다.FIG. 7 is a cross-sectional view of an LED lighting unit for an electric sign board according to a third embodiment of the present invention.
도 8은 본 발명의 제4 실시예에 따른 전광판용 엘이디 조명 유닛을 도시한 단면도이다.FIG. 8 is a cross-sectional view of an LED lighting unit for an electric sign board according to a fourth exemplary embodiment of the present invention.
도 9는 본 발명의 제5 실시예에 따른 전광판용 엘이디 조명 유닛을 도시한 단면도이다.FIG. 9 is a cross-sectional view of an LED lighting unit for a signboard according to a fifth exemplary embodiment of the present invention.
이하, 첨부한 도면들을 참조하여 본 발명의 실시예들을 상세히 설명하기로 한다. 다음에 소개되는 실시예들은 당업자에게 본 발명의 사상이 충분히 전달될 수 있도록 하기 위해 예로서 제공되는 것이다. 따라서, 본 발명은 이하 설명되는 실시예들에 한정되지 않고 다른 형태로 구체화될 수도 있다. 그리고, 도면들에 있어서, 구성요소의 폭, 길이, 두께 등은 편의를 위하여 과장되어 표현될 수 있다. 명세서 전체에 걸쳐서 동일한 참조번호들은 동일한 구성요소들을 나타낸다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided as examples to ensure that the spirit of the present invention can be fully conveyed to those skilled in the art. Accordingly, the present invention is not limited to the embodiments described below and may be embodied in other forms. And, in the drawings, the width, length, thickness, etc. of the components may be exaggerated for convenience. Like numbers refer to like elements throughout.
도 1은 본 발명의 제1 실시예에 따른 전광판용 엘이디 조명 유닛을 포함하는 전광판을 도시한 단면도이고, 도 2는 도 1의 전광판용 엘이디 조명 유닛을 도시한 사시도이다.FIG. 1 is a cross-sectional view of a signboard including an LED lighting unit for a signboard according to a first embodiment of the present invention, and FIG. 2 is a perspective view showing the LED lighting unit for a signboard of FIG. 1.
도 1 및 도 2를 참조하면, 본 발명의 제1 실시예에 따른 전광판(100)은 표시면(110), 전광판용 엘이디 조명 유닛(150) 및 상기 표시면(110)에 상기 전광판용 엘이디 조명 유닛(150)을 결합하는 연결부(115)를 포함한다.1 and 2, the electronic display panel 100 according to the first exemplary embodiment of the present invention includes a display surface 110, an LED lighting unit 150 for an electronic display panel, and an LED lighting for the electronic display panel 110 on the display surface 110. It includes a connecting portion 115 for coupling the unit 150.
상기 잔광판용 엘이디 조명 유닛(150)은 상기 표시면(110)의 앞면의 상부에 위치함을 한정하여 설명하고 있지만, 이에 한정하지 않고, 상기 표시면(110)의 하부 또는 측부 또는 모서리 등 가장자리를 포함하여 다양한 위치에 설치될 수 있다.Although the LED lighting unit 150 for the afterglow plate has been described as being limited to an upper portion of the front surface of the display surface 110, the present invention is not limited thereto. An edge such as a lower portion, a side portion, or a corner of the display surface 110 is described. It can be installed in a variety of locations, including.
상기 전광판용 엘이디 조명 유닛(150)은 제1 및 제2 발광 어레이(156, 157) 및 지지부(151)를 포함한다.The LED lighting unit 150 for the signboard includes first and second light emitting arrays 156 and 157 and a support part 151.
상기 지지부(151)는 일면 상에 위치하는 제1 및 제2 경사면(152, 153)과, 타면 상에 위치하는 히트 싱크(159)를 포함한다. 상기 지지부(151)는 열전도율이 우수한 물질로 이루어진다.The support part 151 includes first and second inclined surfaces 152 and 153 located on one surface and a heat sink 159 located on the other surface. The support part 151 is made of a material having excellent thermal conductivity.
상기 제1 및 제2 경사면(152, 153)은 서로 대칭될 수 있다. 즉, 상기 제1 및 제2 경사면(152, 153)은 상기 지지부(151)의 길이 방향을 따라 서로 대칭되며 일측이 만나는 프리즘 형상을 갖는다. 상기 제1 및 제2 경사면(152, 153)은 상기 지지부(151)와 일체로 이루어지거나 상기 지지부(151)와 분리된 별도의 구조물이 상기 지지부(151)에 결합될 수 있다.The first and second inclined surfaces 152 and 153 may be symmetrical with each other. That is, the first and second inclined surfaces 152 and 153 are symmetrical with each other along the longitudinal direction of the support part 151 and have a prism shape where one side meets. The first and second inclined surfaces 152 and 153 may be integrally formed with the support 151 or a separate structure separated from the support 151 may be coupled to the support 151.
상기 히트 싱크(159)는 상기 지지부(151)의 타면 상에 위치하며, 복수의 돌출 구조를 갖는다. 본 발명에서는 복수의 돌출 구조의 히트 싱크(159)를 한정하여 설명하고 있지만, 이에 한정하지 않고, 방열 효과를 갖는 다른 구성도 적용될 수 있다.The heat sink 159 is located on the other surface of the support part 151 and has a plurality of protruding structures. In the present invention, the heat sink 159 having a plurality of projecting structures is limited and described. However, the present invention is not limited thereto, and other configurations having a heat dissipation effect may also be applied.
상기 제1 발광 어레이(156)는 상기 제1 경사면(152) 상에 위치한다. 상기 제1 발광 어레이(156)는 상기 제1 경사면(152)의 길이방향을 따라 일정 간격 이격되고, 광을 원하는 방향으로 굴절시키는 렌즈 또는 조사각을 넓히기 위한 렌즈를 포함할 수 있다.The first light emitting array 156 is positioned on the first inclined surface 152. The first light emitting array 156 may include a lens that is spaced apart at regular intervals along the longitudinal direction of the first inclined surface 152 and that extends an irradiation angle or a lens that refracts light in a desired direction.
상기 제2 발광 어레이(157)는 상기 제2 경사면(153) 상에 위치한다. 상기 제2 발광 어레이(157)는 상기 제2 경사면(153)의 길이방향을 따라 일정 간격 이격되고, 광을 원하는 방향으로 굴절시키는 렌즈 또는 조사각을 넓히기 위한 렌즈를 포함할 수 있다.The second light emitting array 157 is positioned on the second inclined surface 153. The second light emitting array 157 may include a lens that is spaced apart at regular intervals along the length direction of the second inclined surface 153, and which extends an irradiation angle or refracts light in a desired direction.
상기 제1 및 제2 발광 어레이(156, 157)는 상기 표시면(110)의 앞면 상에서 서로 다른 영역에 광을 제공하며, 서로 상이한 휘도를 갖는다. 이를 위해, 상기 제1 및 제2 발광 어레이(156, 157)는 서로 상이한 구동신호(구동전압 또는 구동전류)에 의해 구동된다.The first and second light emitting arrays 156 and 157 provide light to different areas on the front surface of the display surface 110 and have different luminance. To this end, the first and second light emitting arrays 156 and 157 are driven by different driving signals (driving voltage or driving current).
도 3은 도 1의 표시면에 제공되는 광의 경로를 도시한 도면이고, 도 4는 도 1의 전광판용 엘이디 조명 유닛을 개략적으로 도시한 도면이다.FIG. 3 is a diagram illustrating a path of light provided on the display surface of FIG. 1, and FIG. 4 is a diagram schematically illustrating an LED lighting unit for an electronic display panel of FIG. 1.
도 3 및 도 4를 참조하면, 표시면(110)은 앞면의 상하방향으로 제1 및 제2 영역(FA, SA)으로 구분될 수 있다.3 and 4, the display surface 110 may be divided into first and second regions FA and SA in the vertical direction of the front surface.
여기서, 전광판용 엘이디 조명 유닛(150)은 상기 표시면(110)의 앞면 상단과 인접하게 위치한다. 상기 전광판용 엘이디 조명 유닛(150)은 상기 제1 영역(FA)과 인접하게 위치한다. 즉, 상기 전광판용 엘이디 조명 유닛(150)은 상기 제2 영역(SA)보다 제1 영역(FA)에 더 가깝게 위치한다.Here, the LED lighting unit 150 for the display board is positioned adjacent to the upper end of the front surface of the display surface (110). The LED lighting unit 150 for the display board is located adjacent to the first area FA. That is, the LED lighting unit 150 for the signboard is located closer to the first area FA than the second area SA.
상기 전광판용 엘이디 조명 유닛(150)은 상기 제1 및 제2 발광 어레이(156, 157)와, 제1 및 제2 구동부(103, 105)와, 제어부(101)를 포함한다.The LED lighting unit 150 for the display board includes the first and second light emitting arrays 156 and 157, the first and second driving units 103 and 105, and the controller 101.
상기 제1 발광 어레이(156)는 상기 제1 구동부(103)의 의해 구동되고, 상기 제2 발광 어레이(157)는 상기 제2 구동부(105)에 의해 구동된다. 즉, 상기 제1 및 제2 발광 어레이(156, 157)는 개별 구동될 수 있다.The first light emitting array 156 is driven by the first driver 103, and the second light emitting array 157 is driven by the second driver 105. That is, the first and second light emitting arrays 156 and 157 may be driven separately.
상기 제1 및 제2 구동부(103, 105)는 상기 제어부(101)의 제어신호에 의해 상기 제1 및 제2 발광 어레이(156, 157)에 상이한 구동신호(구동전압 또는 구동전류)를 제공한다. 본 실시예에서는 제2 발광 어레이(157)가 제1 발광 어레이(156) 보다 높은 구동전압 또는 구동전류에 의해 구동되므로 상기 전광판용 엘이디 조명 유닛(150)과 제1 및 제2 영역(FA, SA)의 거리에 따른 휘도 차를 보상할 수 있다. The first and second drivers 103 and 105 provide different driving signals (driving voltage or driving current) to the first and second light emitting arrays 156 and 157 according to control signals of the controller 101. . In the present exemplary embodiment, since the second light emitting array 157 is driven by a driving voltage or a driving current higher than that of the first light emitting array 156, the LED lighting unit 150 for the electronic display panel and the first and second regions FA and SA are used. The luminance difference according to the distance of) can be compensated for.
즉, 상기 전광판용 엘이디 조명 유닛(150)은 상기 제1 및 제2 영역(FA, SA)의 거리 차에 따라 제1 및 제2 발광 어레이(156, 157)의 휘도가 조절된다. 상기 제1 발광 어레이(156)는 제1 휘도(S1)를 갖고, 상기 제2 발광 어레이(157)는 상기 제1 휘도(S1)보다 높은 제2 휘도(S2)를 갖는다.That is, the brightness of the first and second light emitting arrays 156 and 157 is adjusted according to the distance difference between the first and second regions FA and SA of the LED lighting unit 150. The first light emitting array 156 has a first brightness S1, and the second light emitting array 157 has a second brightness S2 higher than the first brightness S1.
본 발명은 상기 제1 및 제2 발광 어레이(156, 157)의 구동신호를 개별 제어함으로써, 상기 전광판용 엘이디 조명 유닛(150)과 표시면(110)의 거리 차에 의한 영역별 휘도 차를 보상할 수 있다.The present invention compensates the luminance difference for each region due to the distance difference between the LED lighting unit 150 for the display board 110 and the display surface 110 by individually controlling the driving signals of the first and second light emitting arrays 156 and 157. can do.
따라서, 본 발명의 전광판용 엘이디 조명 유닛(150)은 표시면(110)의 앞면 전체 영역에 균일한 휘도를 제공함으로써, 표시 품질 및 광 효율을 향상시킬 수 있는 장점을 갖는다.Accordingly, the LED lighting unit 150 for the electronic display panel of the present invention has an advantage of improving display quality and light efficiency by providing uniform luminance to the entire front surface area of the display surface 110.
도 5는 본 발명의 제2 실시예에 따른 전광판용 엘이디 조명 유닛을 도시한 사시도이고, 도 6은 도 5의 표시면에 제공되는 광의 경로를 도시한 도면이다.FIG. 5 is a perspective view illustrating an LED lighting unit for an electronic display panel according to a second embodiment of the present invention, and FIG. 6 is a view illustrating a path of light provided on the display surface of FIG. 5.
도 5 및 도 6을 참조하면, 본 발명의 제2 실시예에 따른 전광판용 엘이디 조명 유닛(250)은 지지부(251)와, 제1 내지 제3 발광 어레이(256, 257, 258)를 포함한다.5 and 6, the LED lighting unit 250 according to the second embodiment of the present invention includes a support part 251 and first to third light emitting arrays 256, 257, and 258. .
상기 지지부(251)는 일면 상에 위치하는 중심면(253), 제1 및 제2 경사면(252, 254)과, 타면 상에 위치하는 히트 싱크(259)를 포함한다. 상기 지지부(251)는 열전도율이 우수한 물질로 이루어진다.The support part 251 includes a center surface 253 located on one surface, first and second inclined surfaces 252 and 254, and a heat sink 259 located on the other surface. The support part 251 is made of a material having excellent thermal conductivity.
상기 중심면(253)은 상기 지지부(251)의 일면과 수평하게 상기 지지부(251)의 길이방향과 대응된다.The center plane 253 corresponds to the longitudinal direction of the support part 251 horizontally with one surface of the support part 251.
상기 제1 및 제2 경사면(252, 254)은 상기 중심면(253)을 사이에 두고 서로 대칭될 수 있다.The first and second inclined surfaces 252 and 254 may be symmetrical with each other with the center surface 253 interposed therebetween.
상기 중심면(253), 제1 및 제2 경사면(252, 254)은 상기 지지부(251)와 일체로 이루어지거나 상기 지지부(251)와 분리된 별도의 구조물이 상기 지지부(251)에 결합될 수 있다.The center surface 253 and the first and second inclined surfaces 252 and 254 may be integrally formed with the support part 251 or a separate structure separated from the support part 251 may be coupled to the support part 251. have.
상기 히트 싱크(259)는 상기 지지부(251)의 타면 상에 위치하며, 복수의 돌출 구조를 갖는다. 본 발명에서는 복수의 돌출 구조의 히트 싱크(259)를 한정하여 설명하고 있지만, 이에 한정하지 않고, 방열 효과를 갖는 다른 구성도 적용될 수 있다.The heat sink 259 is positioned on the other surface of the support part 251 and has a plurality of protruding structures. In the present invention, the heat sinks 259 having a plurality of projecting structures are limited and described. However, the present invention is not limited thereto, and other configurations having a heat dissipation effect may also be applied.
상기 제1 발광 어레이(256)는 상기 제1 경사면(252) 상에 위치한다. 상기 제1 발광 어레이(256)는 상기 제1 경사면(252)의 길이방향을 따라 일정 간격 이격되고, 광을 원하는 방향으로 굴절시키는 렌즈 또는 조사각을 넓히기 위한 렌즈를 포함할 수 있다.The first light emitting array 256 is positioned on the first inclined surface 252. The first light emitting array 256 may include a lens that is spaced apart at regular intervals along the length direction of the first inclined surface 252, and which extends an irradiation angle or refracts light in a desired direction.
상기 제2 발광 어레이(257)는 상기 중심면(253) 상에 위치한다. 상기 제2 발광 어레이(257)는 상기 중심면(253)의 길이방향을 따라 일정 간격 이격되고, 광을 원하는 방향으로 굴절시키는 렌즈 또는 조사각을 넓히기 위한 렌즈를 포함할 수 있다.The second light emitting array 257 is positioned on the center plane 253. The second light emitting array 257 may be spaced apart at regular intervals along the longitudinal direction of the center plane 253, and may include a lens for refracting light in a desired direction or a lens for widening an irradiation angle.
상기 제3 발광 어레이(258)는 상기 제2 경사면(254) 상에 위치한다. 상기 제3 발광 어레이(258)는 상기 제2 경사면(254)의 길이방향을 따라 일정 간격 이격되고, 광을 원하는 방향으로 굴절시키는 렌즈 또는 조사각을 넓히기 위한 렌즈를 포함할 수 있다.The third light emitting array 258 is positioned on the second inclined surface 254. The third light emitting array 258 may include a lens that is spaced apart at regular intervals along the longitudinal direction of the second inclined surface 254, and that extends an irradiation angle or a lens that refracts light in a desired direction.
상기 제1 내지 제3 발광 어레이(256, 257, 258)는 상기 표시면(110)의 앞면 상에서 서로 다른 영역에 광을 제공하며, 서로 상이한 휘도를 갖는다. 이를 위해, 상기 제1 내지 제3 발광 어레이(256, 257, 258)는 서로 상이한 구동전압 또는 구동전류에 의해 구동된다.The first to third light emitting arrays 256, 257, and 258 provide light to different areas on the front surface of the display surface 110 and have different luminance. To this end, the first to third light emitting arrays 256, 257, and 258 are driven by different driving voltages or driving currents.
표시면(110)은 앞면의 상하방향으로 제1 내지 제3 영역(FA, SA, TA)으로 구분될 수 있다.The display surface 110 may be divided into first to third regions FA, SA, and TA in the vertical direction of the front surface.
여기서, 전광판용 엘이디 조명 유닛(250)은 상기 표시면(110)의 앞면 상단과 인접하게 위치한다. 상기 전광판용 엘이디 조명 유닛(250)은 상기 제1 영역(FA)과 인접하게 위치한다. 즉, 상기 전광판용 엘이디 조명 유닛(250)은 상기 제3 영역(TA)으로부터 제1 영역(FA)으로 갈수록 더 가깝게 위치한다.Here, the LED lighting unit 250 for the display board is positioned adjacent to the upper end of the front surface of the display surface (110). The LED lighting unit 250 for the display board is located adjacent to the first area FA. That is, the LED lighting unit 250 for the signboard is located closer to the first area FA from the third area TA.
상기 전광판용 엘이디 조명 유닛(250)은 상기 제1 내지 제3 영역(FA, SA, TA)의 거리 차에 따라 제1 내지 제3 발광 어레이(256, 257, 258)의 휘도가 조절된다. 상기 제1 발광 어레이(256)는 제1 휘도(S1)를 갖고, 상기 제2 발광 어레이(257)는 상기 제1 휘도(S1)보다 높은 제2 휘도(S2)를 갖고, 상기 제3 발광 어레이(258)는 상기 제2 휘도(S2)보다 높은 제3 휘도(S3)를 갖는다. The luminance of the first to third light emitting arrays 256, 257, and 258 is adjusted according to the distance difference between the first to third areas FA, SA, and TA in the LED lighting unit 250. The first light emitting array 256 has a first brightness S1, the second light emitting array 257 has a second brightness S2 that is higher than the first brightness S1, and the third light emitting array 258 has a third luminance S3 that is higher than the second luminance S2.
본 발명은 상기 제1 내지 제3 발광 어레이(256, 257, 258)의 구동신호를 개별적으로 제어함으로써, 상기 전광판용 엘이디 조명 유닛(250)과 표시면(110)의 거리 차에 의한 영역별 휘도 차를 보상할 수 있다.According to the present invention, by individually controlling the driving signals of the first to third light emitting arrays 256, 257, and 258, the luminance for each region is determined by the distance difference between the LED lighting unit 250 and the display surface 110. You can compensate the car.
따라서, 본 발명의 전광판용 엘이디 조명 유닛(250)은 표시면(110) 앞면의 전체 영역에 균일한 휘도를 제공함으로써, 표시 품질 및 광 효율을 향상시킬 수 있는 장점을 갖는다.Therefore, the LED lighting unit 250 for the electronic display panel of the present invention has an advantage of improving display quality and light efficiency by providing uniform luminance over the entire area of the front surface of the display surface 110.
도 7은 본 발명의 제3 실시예에 따른 전광판용 엘이디 조명 유닛을 도시한 단면도이다.FIG. 7 is a cross-sectional view of an LED lighting unit for an electric sign board according to a third embodiment of the present invention.
도 7을 참조하면, 본 발명의 제3 실시예에 따른 전광판용 엘이디 조명 유닛(350)은 제1 발광 어레이(356)를 덮는 휘도 감소 필름(355)을 제외한 구성은 도 2에 도시된 본 발명의 제1 실시예에 따른 전광판용 엘이디 조명 유닛(도2의 150)과 동일하므로 상세한 설명은 생략하기로 한다.Referring to FIG. 7, the LED lighting unit 350 according to the third embodiment of the present invention has a configuration except for the luminance reduction film 355 covering the first light emitting array 356. Since the LED lighting unit (150 of FIG. 2) according to the first embodiment of the present invention is the same, a detailed description thereof will be omitted.
상기 전광판용 엘이디 조명 유닛(350)은 지지부(351)의 일면 상에 서로 대칭되는 제1 및 제2 경사면(352, 353)과, 상기 제1 경사면(352) 상에 위치한 제1 발광 어레이(356)와, 상기 제2 경사면(353) 상에 위치한 제2 발광 어레이(357)를 포함한다.The LED lighting unit 350 for the display board includes first and second inclined surfaces 352 and 353 which are symmetrical to each other on one surface of the support 351, and a first light emitting array 356 positioned on the first inclined surface 352. ) And a second light emitting array 357 positioned on the second inclined surface 353.
여기서, 상기 제1 및 제2 발광 어레이(356, 357)는 동일한 레벨의 구동신호(구동전압 또는 구동전류)에 의해 동일한 휘도를 갖는다.Here, the first and second light emitting arrays 356 and 357 have the same luminance by driving signals (driving voltage or driving current) having the same level.
상기 휘도 감소 필름(355)은 상기 제1 발광 어레이(356)의 휘도를 감소시키기 위해 상기 제1 경사면(352) 상에 위치한다.The luminance reducing film 355 is positioned on the first inclined surface 352 to reduce the luminance of the first light emitting array 356.
상기 휘도 감소 필름(355)은 상기 제1 발광 어레이(356)로부터 발생된 광의 일부를 전반사 및 흡수하여 방출되는 광량을 줄이는 기능을 갖는다.The luminance reducing film 355 has a function of reducing the amount of light emitted by total reflection and absorption of a portion of the light generated from the first light emitting array 356.
본 발명의 제3 실시예에 따른 전광판용 엘이디 조명 유닛(350)은 표시면의 영역별 거리 차에 따라 상기 전광판용 엘이디 조면 유닛(350)과 표시면 사이의 최단 간격에 위치한 상기 제1 발광 어레이(356)의 휘도를 감소시키는 휘도 감소 필름(355)을 구비하여 상기 전광판용 엘이디 조명 유닛(350)과 표시면의 거리 차에 의한 영역별 휘도 차를 보상할 수 있다.The LED lighting unit 350 according to the third exemplary embodiment of the present invention is the first light emitting array positioned at the shortest distance between the LED roughening unit 350 and the display surface according to the area difference of the display surface. The luminance reducing film 355 may be provided to reduce the luminance of the display unit 356 to compensate for the luminance difference for each region due to the distance difference between the LED lighting unit 350 and the display surface.
따라서, 본 발명의 전광판용 엘이디 조명 유닛(350)은 표시면의 앞면 전체 영역에 균일한 휘도를 제공함으로써, 표시 품질 및 광 효율을 향상시킬 수 있는 장점을 갖는다. 또한, 상기 전광판용 엘이디 조명 유닛(350)은 상기 휘도 감소 필름(355) 만으로 상기 전광판용 엘이디 조명 유닛(350)과 표시면의 거리 차에 의한 영역별 휘도 차를 보상하므로 본 발명의 제1 실시예의 전광판용 엘이디 조명 유닛(도2의 150)보다 구동회로를 간소화할 수 있는 장점을 갖는다.Accordingly, the LED lighting unit 350 of the present invention has an advantage of improving display quality and light efficiency by providing uniform luminance to the entire front surface area of the display surface. In addition, since the LED lighting unit 350 for the display board compensates for the luminance difference for each region due to the distance difference between the LED lighting unit 350 for the display board and the display surface using only the brightness reduction film 355, the first embodiment of the present invention is implemented. Example of the LED lighting unit for the display board (150 of FIG. 2) has the advantage that can simplify the drive circuit.
도 8은 본 발명의 제4 실시예에 따른 전광판용 엘이디 조명 유닛을 도시한 단면도이다.FIG. 8 is a cross-sectional view of an LED lighting unit for an electric sign board according to a fourth exemplary embodiment of the present invention.
도 8을 참조하면, 본 발명의 제4 실시예에 따른 전광판용 엘이디 조명 유닛(550)은 서로 대칭되는 제1 및 제2 경사면(552, 553)과, 상기 제1 경사면(552) 상에 위치한 제1 발광 어레이(556) 및 상기 제2 경사면(553) 상에 위치한 제2 발광 어레이(557)를 포함한다.Referring to FIG. 8, the LED lighting unit 550 according to the fourth exemplary embodiment of the present invention may include first and second inclined surfaces 552 and 553 which are symmetrical to each other, and are disposed on the first inclined surface 552. A first light emitting array 556 and a second light emitting array 557 positioned on the second inclined surface 553.
상기 제1 및 제2 발광 어레이(556, 557)는 동일한 구동신호(구동전압 또는 구동전류)에 의해 구동될 수 있다. 상기 제2 발광 어레이(557)는 상기 제1 발광 어레이(556)보다 많은 개수의 발광 다이오드를 포함한다.The first and second light emitting arrays 556 and 557 may be driven by the same driving signal (driving voltage or driving current). The second light emitting array 557 includes a greater number of light emitting diodes than the first light emitting array 556.
상기 제1 발광 어레이(556)는 표시면의 앞면 상단으로 정의되는 제1 영역에 광을 제공하고, 상기 제2 발광 어레이(557)는 상기 표시면의 앞면 하단으로 정의되는 제2 영역에 광을 제공한다. 상기 제2 영역은 상기 제1 영역보다 상기 전광판용 엘이디 조명 유닛으로부터 먼 이격 거리를 갖는다.The first light emitting array 556 provides light to a first area defined as an upper front side of a display surface, and the second light emitting array 557 provides light to a second area defined as a lower front surface of the display surface. to provide. The second area has a distance farther from the LED lighting unit for the electronic display board than the first area.
본 발명의 제4 실시예에 따른 전광판용 엘이디 조명 유닛(550)은 상기 표시면의 제1 및 제2 영역과 전광판용 엘이디 조명 유닛의 거리 차에 따라 제2 영역에 광을 제공하는 상기 제1 발광 어레이(556)보다 많은 발광 다이오드 개수를 갖는 제2 발광 어레이(557)를 구비함으로써, 전광판용 엘이디 조명 유닛(550)과 표시면의 거리 차에 의한 영역별 휘도 차를 보상할 수 있다.The LED lighting unit 550 for the display panel according to the fourth embodiment of the present invention provides light to the second region according to the distance difference between the first and second regions of the display surface and the LED lighting unit for the display panel. By providing the second light emitting array 557 having a larger number of light emitting diodes than the light emitting array 556, the luminance difference for each region due to the distance difference between the LED lighting unit 550 for the display board and the display surface can be compensated for.
따라서, 본 발명의 전광판용 엘이디 조명 유닛(550)은 표시면의 앞면 전체 영역에 균일한 휘도를 제공함으로써, 표시 품질 및 광 효율을 향상시킬 수 있는 장점을 갖는다. 또한, 상기 전광판용 엘이디 조명 유닛(550)은 상기 제2 발광 어레이(557)의 발광 다이오드 개수를 조절하여 상기 전광판용 엘이디 조명 유닛(550)과 표시면의 거리 차에 의한 영역별 휘도 차를 보상하므로 본 발명의 제1 실시예의 전광판용 엘이디 조명 유닛(도2의 150)보다 구동회로를 간소화할 수 있는 장점을 갖는다.Accordingly, the LED lighting unit 550 for the electronic display of the present invention has an advantage of improving display quality and light efficiency by providing uniform luminance to the entire front surface area of the display surface. In addition, the LED lighting unit 550 for the display panel compensates for the luminance difference for each region due to the distance between the LED lighting unit 550 for the display panel and the display surface by adjusting the number of light emitting diodes of the second light emitting array 557. Therefore, there is an advantage that the driving circuit can be simplified than the LED lighting unit (150 of FIG. 2) of the first embodiment of the present invention.
도 9는 본 발명의 제5 실시예에 따른 전광판용 엘이디 조명 유닛을 도시한 단면도이다.FIG. 9 is a cross-sectional view of an LED lighting unit for a signboard according to a fifth exemplary embodiment of the present invention.
도 9를 참조하면, 본 발명의 제5 실시예에 따른 전광판용 엘이디 조명 유닛(650)은 전원전압을 제공하기 위한 태양 전지(690) 및 이동 유닛(670)을 제외한 구성은 도 2에 도시된 본 발명의 제1 실시예에 따른 전광판용 엘이디 조명 유닛(도2의 150)과 동일하므로 상세한 설명은 생략하기로 한다.Referring to FIG. 9, the LED lighting unit 650 for the LED panel according to the fifth embodiment of the present invention has a configuration except for the solar cell 690 and the mobile unit 670 for providing a power supply voltage. Since it is the same as the LED lighting unit 150 of FIG. 2 according to the first embodiment of the present invention, a detailed description thereof will be omitted.
상기 태양 전지(690)는 전광판용 엘이디 조명 유닛(650) 각각에 설치된다.이에 한정하지 않고, 상기 태양 전지(690)의 개수는 얼마든지 변경될 수 있다.The solar cell 690 is installed in each of the LED lighting units 650 for the display board. The present invention is not limited thereto, and the number of the solar cells 690 may be changed.
상기 이동 유닛(670)은 표시면의 앞면 상에서 수평방향으로 전광판용 엘이디 조명 유닛(650)을 이동시킨다. 상기 이동 유닛(670)은 표시면(110)의 앞면상에서 수평 방향으로 휘도 조절시에 이용될 수 있다. 예를 들면, 상기 이동 유닛(670)은 표시면(110)의 우측에 광이 집중되도록 표시면(110)의 좌측 상에 위치한 전광판용 엘이디 조명 유닛(650)을 우측으로 이동시켜 표시면(110)의 수평방향으로의 광량을 제어할 수 있다.The moving unit 670 moves the LED lighting unit 650 for the electronic display board in the horizontal direction on the front surface of the display surface. The mobile unit 670 may be used to adjust luminance in a horizontal direction on the front surface of the display surface 110. For example, the moving unit 670 moves the LED lighting unit 650 for the electronic display panel located on the left side of the display surface 110 to the right side so that light is concentrated on the right side of the display surface 110. The amount of light in the horizontal direction can be controlled.
본 발명의 제5 실시예에 따른 전광판용 엘이디 조명 유닛(650)은 상기 태양 전지(690)를 통해서 전원전압을 공급받아 구동되므로 별도의 구동을 위한 전원으로부터의 배선이 불필요한 장점을 갖는다. 또한, 제5 실시예에 따른 전광판용 엘이디 조명 유닛(350)은 이동 유닛(670)이 더 구비되어 표시면(110)의 수평방향으로의 광량을 쉽게 제어할 수 있는 장점을 갖는다.Since the LED lighting unit 650 for the display board according to the fifth embodiment of the present invention is driven by receiving a power supply voltage through the solar cell 690, wiring from a power supply for separate driving is unnecessary. In addition, the LED lighting unit 350 for the display board according to the fifth embodiment is further provided with a moving unit 670 has an advantage that can easily control the amount of light in the horizontal direction of the display surface 110.
이상에서의 제1 내지 제5 실시예에 따른 전광판용 엘이디 조명 유닛은 그 구성에 한정하지 않고, 외부로부터 보호를 위한 외부 케이스를 더 포함할 수 있다.The LED lighting unit for LED display according to the first to the fifth embodiment is not limited to the configuration, and may further include an outer case for protection from the outside.
이상에서, 본 발명의 다양한 실시예들 및 특징들에 대해 설명하였지만, 본 발명은 위에서 설명한 실시예들 및 특징들에 한정되는 것은 아니며, 본 발명의 사상을 벗어나지 않는 범위 내에서 다양하게 변형될 수 있다.In the above, various embodiments and features of the present invention have been described, but the present invention is not limited to the embodiments and features described above, and various modifications may be made without departing from the spirit of the present invention. have.

Claims (18)

  1. 표시면 앞면의 가장자리에 위치하여 광을 제공하는 전광판용 엘이디 조명 유닛에 있어서,In the LED lighting unit for an electronic signboard located at the edge of the front surface of the display surface to provide light,
    상기 표시면의 복수의 영역에 광을 제공하는 복수의 발광 어레이; 및A plurality of light emitting arrays providing light to a plurality of areas of the display surface; And
    상기 발광 어레이들을 지지하는 지지부를 포함하고,A support for supporting the light emitting arrays,
    상기 발광 어레이들로부터 발광된 광은 상기 표시면의 상기 복수의 영역별로 서로 상이한 휘도를 갖는 전광판용 엘이디 조명 유닛.And a light emitted from the light emitting arrays has different luminance for each of the plurality of regions of the display surface.
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 지지부는 일면 상에 적어도 2 이상의 경사면을 포함하고, 상기 발광 어레이들은 상기 경사면 상에 각각 분리되어 위치하는 전광판용 엘이디 조명 유닛.The support unit includes at least two inclined surfaces on one surface, the light emitting array LED lighting unit for a light emitting plate is located separately on the inclined surface.
  3. 청구항 1에 있어서,The method according to claim 1,
    상기 지지부는 타면 상에 히트 싱크를 더 포함하는 전광판용 엘이디 조명 유닛.The support unit LED lighting unit further comprises a heat sink on the other surface.
  4. 청구항 2에 있어서,The method according to claim 2,
    상기 지지부는 일면 상에 서로 대칭되는 제1 및 제2 경사면을 포함하는 전광판 엘이디 조명 유닛.The support unit LED lighting unit comprising a first and second inclined surface symmetrical with each other on one surface.
  5. 청구항 4에 있어서The method according to claim 4
    상기 발광 어레이들은,The light emitting arrays,
    상기 제1 경사면에 위치한 제1 발광 어레이 및A first light emitting array on the first inclined surface; and
    상기 제2 경사면에 위치한 제2 발광 어레이를 포함하는 전광판용 엘이디 조명 유닛.LED lighting unit for a display board comprising a second light emitting array located on the second inclined surface.
  6. 청구항 5에 있어서,The method according to claim 5,
    상기 표시면은 제1 및 제2 영역으로 구분되고, 상기 제1 발광 어레이는 상기 제1 영역에 광을 제공하고, 상기 제2 발광 어레이는 상기 제2 영역에 광을 제공하고, 상기 제1 발광 어레이의 휘도보다 상기 제2 발광 어레이의 더 높은 휘도를 갖는 전광판용 엘이디 조명 유닛.The display surface is divided into first and second regions, the first light emitting array provides light to the first area, the second light emitting array provides light to the second area, and the first light emission. An LED lighting unit for an electronic board having a higher luminance of the second light emitting array than the luminance of the array.
  7. 청구항 5에 있어서,The method according to claim 5,
    상기 제1 및 제2 발광 어레이는 상기 제2 영역보다 상기 제1 영역과 더 가깝게 위치한 전광판용 엘이디 조명 유닛.And the first and second light emitting arrays are located closer to the first area than the second area.
  8. 청구항 5에 있어서,The method according to claim 5,
    상기 제1 및 제2 발광 어레이는 동일한 구동전압 또는 구동전류에 의해 구동되고, 상기 제1 경사면 상에는 상기 제1 발광 어레이를 덮는 휘도 감소 필름을 더 포함하는 전광판용 엘이디 조명 유닛.And the first and second light emitting arrays are driven by the same driving voltage or driving current, and further comprising a luminance reducing film covering the first light emitting array on the first inclined surface.
  9. 청구항 5에 있어서,The method according to claim 5,
    상기 제1 및 제2 발광 어레이는 동일한 구동전압 또는 구동전류에 의해 구동되고, 상기 제2 발광 다이오드의 개수는 상기 제1 발광 다이오드의 개수보다 많은 전광판용 엘이디 조명 유닛.And the first and second light emitting arrays are driven by the same driving voltage or driving current, and the number of the second light emitting diodes is greater than the number of the first light emitting diodes.
  10. 청구항 5에 있어서,The method according to claim 5,
    상기 제1 발광 어레이를 구동시키는 제1 구동부와, 상기 제2 발광 어레이를 구동시키는 제2 구동부를 더 포함하고, 상기 제2 구동부가 제2 구동부보다 높은 구동전압 또는 구동전류를 갖는 전광판용 엘이디 조명 유닛.And a first driving unit for driving the first light emitting array and a second driving unit for driving the second light emitting array, wherein the second driving unit has a higher driving voltage or driving current than the second driving unit. unit.
  11. 청구항 1에 있어서,The method according to claim 1,
    상기 지지부는 일면 상에 중심면과, 상기 중심면을 기준으로 서로 대칭되는 제1 및 제2 경사면을 갖는 전광판의 엘이디 조명 유닛.The support unit of the LED lighting unit of the signboard having a central surface on one surface, and the first and second inclined surfaces symmetrical with respect to the center surface.
  12. 청구항 11에 있어서,The method according to claim 11,
    상기 중심면은 상기 지지부의 일면과 수평하게 상기 지지부의 길이방향과 대응되는 전광판의 엘이디 조명 유닛.The center surface of the LED lighting unit of the light plate corresponding to the longitudinal direction of the support portion horizontally with one surface of the support.
  13. 청구항 11에 있어서,The method according to claim 11,
    상기 발광 어레이들은,The light emitting arrays,
    상기 제1 경사면 상에 위치한 제1 발광 어레이;A first light emitting array on the first inclined surface;
    상기 중심면 상에 위치한 제2 발광 어레이; 및A second light emitting array located on the center plane; And
    상기 제2 경사면에 위치한 제3 발광 어레이를 포함하는 전광판 엘이디 조명 유닛.And a third light emitting array on the second inclined surface.
  14. 청구항 13에 있어서,The method according to claim 13,
    상기 표시면은 제1 내지 제3 영역으로 구분되고, 상기 제1 발광 어레이는 상기 제1 영역에 광을 제공하고, 상기 제2 발광 어레이는 상기 제2 영역에 광을 제공하고, 상기 제3 발광 어레이는 제3 영역에 광을 제공하고, 상기 제1 발광 어레이로부터 상기 제3 발광 어레이로 갈수록 높은 휘도를 갖는 전광판용 엘이디 조명 유닛.The display surface is divided into first to third regions, the first light emitting array provides light to the first area, the second light emitting array provides light to the second area, and the third light emission. The array provides light to a third region, and the LED lighting unit for an electronic board having a higher brightness toward the third light emitting array from the first light emitting array.
  15. 청구항 13에 있어서,The method according to claim 13,
    상기 제1 내지 제3 발광 어레이는 상기 제3 영역보다 상기 제1 영역과 더 가깝게 위치한 전광판용 엘이디 조명 유닛.And the first to third light emitting arrays are disposed closer to the first area than to the third area.
  16. 청구항 1에 있어서,The method according to claim 1,
    상기 표시면의 수평한 방향으로 상기 지지부를 이동시키는 이동유닛을 더 포함하는 전광판용 엘이디 조명 유닛.LED lighting unit for a display board further comprising a moving unit for moving the support in the horizontal direction of the display surface.
  17. 청구항 1에 있어서,The method according to claim 1,
    상기 제1 및 제2 발광 어레이를 구동시키는 전원전압을 제공하는 태양 전지를 더 포함하는 전광판용 엘이디 조명 유닛.The LED lighting unit for a display panel further comprises a solar cell for providing a power supply voltage for driving the first and second light emitting array.
  18. 청구항 1에 있어서,The method according to claim 1,
    상기 제1 및 제2 발광 어레이를 보호하기 위한 보호 커버를 더 포함하는 전광판용 엘이디 조명 유닛.The LED lighting unit for a display board further comprises a protective cover for protecting the first and second light emitting array.
PCT/KR2014/002549 2013-04-02 2014-03-26 Led illumination unit for electronic display board WO2014163321A1 (en)

Applications Claiming Priority (2)

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KR10-2013-0035843 2013-04-02
KR1020130035843A KR20140120129A (en) 2013-04-02 2013-04-02 Led light unit for electric light board

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CN108616699A (en) * 2018-04-25 2018-10-02 努比亚技术有限公司 It takes pictures light compensation method, equipment and computer storage media

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KR20190085331A (en) 2018-01-10 2019-07-18 주식회사 아모센스 Light apparatus

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KR200399308Y1 (en) * 2005-08-03 2005-10-21 안세찬 Outside illuminating systems of various dial plate
KR100865478B1 (en) * 2008-02-25 2008-10-28 (주)파트라 A street lamp using led
KR100971611B1 (en) * 2010-01-21 2010-07-20 (주)리얼에너지 Street light lamp
KR101053785B1 (en) * 2011-05-09 2011-08-03 (주)프로맥엘이디 Flood light of sign board

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KR19990017676U (en) * 1999-02-18 1999-05-25 안의선 Multi display type sign board with external lighting apparatus
KR200399308Y1 (en) * 2005-08-03 2005-10-21 안세찬 Outside illuminating systems of various dial plate
KR100865478B1 (en) * 2008-02-25 2008-10-28 (주)파트라 A street lamp using led
KR100971611B1 (en) * 2010-01-21 2010-07-20 (주)리얼에너지 Street light lamp
KR101053785B1 (en) * 2011-05-09 2011-08-03 (주)프로맥엘이디 Flood light of sign board

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108616699A (en) * 2018-04-25 2018-10-02 努比亚技术有限公司 It takes pictures light compensation method, equipment and computer storage media

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