WO2017217826A1 - Light-emitting type signboard using led - Google Patents

Light-emitting type signboard using led Download PDF

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Publication number
WO2017217826A1
WO2017217826A1 PCT/KR2017/006366 KR2017006366W WO2017217826A1 WO 2017217826 A1 WO2017217826 A1 WO 2017217826A1 KR 2017006366 W KR2017006366 W KR 2017006366W WO 2017217826 A1 WO2017217826 A1 WO 2017217826A1
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WO
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Prior art keywords
light
led light
light emitting
conversion sheet
blue
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PCT/KR2017/006366
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French (fr)
Korean (ko)
Inventor
오충봉
김명식
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오충봉
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Priority claimed from KR1020160075566A external-priority patent/KR20170142318A/en
Priority claimed from KR1020170076379A external-priority patent/KR20180137138A/en
Application filed by 오충봉 filed Critical 오충봉
Publication of WO2017217826A1 publication Critical patent/WO2017217826A1/en

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/08—Signs, boards or panels, illuminated from behind the insignia using both translucent and non-translucent layers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/12—Signs, boards or panels, illuminated from behind the insignia using a transparent mirror or other light reflecting surface transparent to transmitted light whereby a sign, symbol, picture or other is visible only when illuminated
    • 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

Definitions

  • the present invention relates to a light-emitting sign using an LED, characterized in that the conversion is converted to light of another color at the same time as diffusion, and more particularly, the blue light emitted from the blue LED light emitting device diffuses through the optical sheet.
  • the conversion is converted to light of another color at the same time as diffusion, and more particularly, the blue light emitted from the blue LED light emitting device diffuses through the optical sheet.
  • the light-emitting traffic safety sign asks the driver to see the shape by applying a light source to the sign, and the part of the pattern uses a retroreflective sheet to maintain the minimum retroreflective performance even if the light breaks down.
  • the cover uses a light source inside and maintains the existing retroreflective performance without a power source by using a retroreflective sheet having good transmittance outside.
  • Emission type traffic safety signs have low power consumption by requesting a large number of LEDs to the signs, and products that combine solar light by emitting light at night are unified, and the identification of road signs is unified as installation places increase due to the different day and night identification. Due to the issue of the law, additional legislation is being discussed, and the luminous signs are exposed to the outside, so the caution signs and regulatory signs prescribed in Article 4 of the Road Traffic Act and Article 3 of the Enforcement Rule of the Act. However, among the types of indication signs, road signs, and supplementary signs, they are limited to caution and regulatory signs and are not available for indications and supplementary signs that contain letters.
  • Illuminated signs are generally edge type using light guide plate (EDGE TYPE) and direct type applying diffusion sheet using many LED packaging.
  • Edge method using light guide plate has less power consumption and can have slim structure, but as the size increases, the weight increases, so when applied to large road signs, it is more likely to be damaged by external shocks or drafts or to cause safety accidents. It is impossible to have problems vulnerable to moisture.
  • the direct method has high reliability compared to the light guide plate with respect to external temperature difference or humidity by applying LED packaging having a moisture proof structure (IP660), and has a structure that can be applied to a large signage because it is not large in weight.
  • LED packaging having a moisture proof structure IP660
  • a plurality of LED packaging is mounted to achieve a surface light source using a diffuser plate, power consumption is very high compared to the light guide plate and has a problem that it is difficult to apply a solar module.
  • the present invention is to solve the above problems, to provide a light-emitting sign that is installed and used to provide any information to the driver or pedestrian, using a blue LED light emitting device in the interior of the light-emitting sign back panel It is a technology that has a direct lighting type signage structure that has a consumption power equivalent to that of a conventional light guide plate by dispersing blue light by using a diffusion member coated with a yellow phosphor and emitting white light through the diffusion member, but with a light weight.
  • An object of the present invention is to provide a method for producing a coated signboard having excellent moisture resistance and low energy consumption.
  • the present invention provides a light-emitting sign is a front plate designed on the front display, a rear plate fixed to the rear surface is replaced with the front plate; A plurality of LED light emitting devices mounted on the inside of the light emitting signboard body and the rear panel to emit a predetermined color, and attached in close contact with the front panel, and configured to emit light from the plurality of LED light emitting devices; It is composed of a conversion sheet for diffusing light and converting it into light of another color.
  • the conversion sheet is provided with a conversion phosphor on the surface of the conversion sheet in order to convert the light of a predetermined color emitted from the plurality of LED light emitting elements into another color light is emitted from the plurality of LED light emitting elements Light of a predetermined color is diffused through the conversion sheet and converted into light of another color to emit light.
  • the plurality of LED light emitting device is a blue LED light emitting device for emitting blue light
  • the conversion phosphor coated on the surface of the conversion sheet includes a yellow phosphor that converts blue light emitted from the blue LED light emitting device into white light and emits light.
  • the front plate may be designed using a letter or a figure indicating a safety sign, the opposite side on which the safety mark is formed on the front plate and the coated opposite side of the conversion sheet coated with the yellow phosphor are attached to the main body Is located in the front part.
  • the blue LED light emitting device has a light emission wavelength of 430nm to 460nm
  • the yellow phosphor has a peak wavelength band of 565nm to 590nm with blue light emitted from the blue LED light emitting device as an excitation source.
  • a blue LED inside the light-emitting sign body to emit blue light as white light through a conversion sheet coated with a yellow phosphor, it can have a high energy consumption with a lower energy consumption than conventional road signs It is effective in moisture resistance.
  • FIG. 1 is a view showing a plurality of LED light emitting devices installed on the back plate of a light-emitting sign body according to a preferred embodiment of the present invention.
  • FIG. 2 is a view showing a structure for emitting white light of the light-emitting sign according to a preferred embodiment of the present invention.
  • FIG 3 is a view showing the front plate of the light-emitting sign body is designed with a safety sign according to an embodiment of the present invention.
  • FIG. 5 is a perspective view showing an embodiment of the present invention.
  • the light-emitting signs using the LEDs are installed on roads and sidewalks to provide any information to drivers or pedestrians.
  • the LED sign body 100 using the LED is composed of a front plate 110 and a front plate 110 is formed on the rear surface is opposed to the front plate 110 is not shown in the guide.
  • a plurality of LED light emitting devices 130 for emitting a predetermined color is formed in the back plate 120.
  • the front plate 110 is formed and attached, and the plurality of LED light emitting element 130 is made of a conversion sheet for diffusing the light of a predetermined color and at the same time converting the light of another color
  • the light of a predetermined color emitted from the LED light emitting device 130 is diffused through the conversion sheet and converted into light of another color and emits light.
  • FIG. 1 is a view showing a plurality of LED light emitting device 130 installed on the back plate 120 of the light-emitting sign body 100 according to a preferred embodiment of the present invention.
  • the blue LED light emitting device is installed inside the back plate 120 of the LED light-emitting sign body.
  • FIG. 2 is a view showing a structure for emitting white light of the light-emitting sign according to a preferred embodiment of the present invention.
  • the blue light emitted from the blue LED light emitting device is converted into white light by the conversion sheet 140 coated with the yellow phosphor.
  • the conversion sheet 140 is provided with a conversion phosphor on the surface of the conversion sheet 140 in order to convert the light of a predetermined color emitted from the plurality of LED light emitting devices 130 to the light of another color. Light of a predetermined color emitted from the plurality of LED light emitting devices 130 is diffused through the conversion sheet 140 and simultaneously converted into light of another color to emit light.
  • the surface of the conversion sheet 140 coated with the yellow phosphor is added with a special compound or embossed or three-dimensional pattern treatment, the surface is convex blue light emitted from the LED light emitting device 130 It increases the refractive index, which makes the light diffuse better.
  • the surface embossing or three-dimensional pattern processing of the conversion sheet 140 may be processed only on one portion of the upper or lower portion, or may be treated on both the upper portion and the lower portion.
  • the plurality of LED light emitting devices 130 are blue LED light emitting devices for emitting blue light
  • the conversion phosphor coated on the surface of the conversion sheet 140 converts blue light emitted from the blue LED light emitting devices into white light. It consists of a yellow phosphor which emits light.
  • the blue LED light emitting device 130 has a light emission wavelength of 430nm to 460nm, and the yellow phosphor has a peak wavelength band of 565nm to 590nm with blue light emitted from the blue LED light emitting device as an excitation source. .
  • the conversion sheet 140 coated with the yellow phosphor has a wide optical alignment angle.
  • FIG 3 is a view showing the front plate 110 of the light-emitting sign body is designed with a safety sign 111 according to an embodiment of the present invention.
  • the conversion sheet 140 is attached and formed, and the front plate 110 of the light emitting sign body 100 is installed on a road or sidewalk to provide some information to a driver or a pedestrian. .
  • the front panel 110 may be designed using characters or graphics indicating safety signs 111, traffic signs, construction guide signs, etc., such as road curvature signs, speed limit signs, and various kinds of information required for driving or walking. Can be.
  • the opposite side of the safety cover is formed on the front plate 110 and the opposite side of the conversion sheet 140 is coated with the yellow phosphor is attached to each other is located in the front portion on the light-emitting sign body 100, Since the front plate 110 is formed, it is possible to prevent the inflow of rain water, dust, and the like.
  • FIG. 4 it is a photograph showing an embodiment of the light-emitting sign using the LED light emitting device, a view showing the internal light emission.
  • Blue LED packaging is installed on the back plate 120 of the light-emitting sign body 100, the front surface of the conversion sheet 140 and the safety sign is coated with the yellow phosphor at the upper end of the back plate 120
  • the plate 110 is attached together, the front plate 110 is a picture showing a light-emitting sign using the LED light emitting element is formed by the top of the main body 110 is the safety sign is designed.
  • FIG. 5 is a perspective view showing an embodiment of the present invention.
  • chevrons illustrated in the drawings are only examples, and various types of markers may be designed.
  • the light-emitting sign is a technology having a direct-type lighting sign structure
  • the direct method has a high reliability compared to the light guide plate against the external temperature difference or humidity by applying a plurality of LED light emitting device 130 having a moisture-proof structure.
  • the weight since the weight is not great, it has a structure that can be applied to a large sign board, and thus it is possible to make the LED light-emitting sign having excellent moisture resistance.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

A light-emitting type signboard according to the present invention comprises: a light-emitting type signboard body consisting of a front plate with a guide sign drawn on the front side thereof and a rear plate which is opposed to the front plate and fixed to the rear side thereof; a plurality of LED light-emitting elements which are mounted inside the rear plate and emit light of a predetermined color; and a conversion sheet which is attached in close contact with the front plate and converts the light of the predetermined color into light of another color while simultaneously diffusing the light of the predetermined color emitted from the LED light-emitting elements. In addition, because blue LED light-emitting elements are arranged inside the light-emitting type signboard body and blue light is emitted as white light through the conversion sheet coated with a yellow phosphor, the present invention has effects which are capable of achieving high efficiency with low energy consumption and excellent moisture-proof property when compared to existing road signboards.

Description

LED를 이용한 발광형 표지판Luminescent signs using LED
본 발명은 확산과 동시에 또 다른 색의 광으로 변환되어 발굉되는 것을 특징으로 하는 LED를 이용한 발광형 표지판에 관한 발명으로서, 더욱 상세하게는 청색 LED 발광소자에서 발광하는 청색광을 광학산 시트를 통해 확산시킴과 동시에 또 다른 색의 광으로 변환시킴으로써, 도광판과 동등한 소비전력을 가지나 무게는 경량화 시킨 직하방식의 조명식 표지판 구조를 갖는 기술로써, 방습성이 우수하고 낮은 에너지 소비전력을 갖는 도포표지판의 제조방법에 관한 것이다.The present invention relates to a light-emitting sign using an LED, characterized in that the conversion is converted to light of another color at the same time as diffusion, and more particularly, the blue light emitted from the blue LED light emitting device diffuses through the optical sheet. By converting the light into another color at the same time, it has the same power consumption as the light guide plate, but has a direct light type signage structure that is light in weight, and has a high moisture resistance and low energy consumption. It is about.
근래에는 시인성을 높이기 위해 다양한 형태와 구성의 표지판이 개발되고 있으며 이 중 LED등의 조명장치를 이용한 발광형 표지판이 제안되어 사용되고 있다. 이러한 발광형 표지판의 경우 설치장소에 관계없이 LED에 전원을 공급하고자 태양전지를 주로 사용하게 된다.Recently, signs of various shapes and configurations have been developed to increase visibility, and among them, light-emitting signs using lighting devices such as LED lights have been proposed and used. In the case of these light-emitting signs, solar cells are mainly used to supply power to the LED regardless of the installation place.
발광형 교통안전표지판은 광원을 표지판에 부탁하여 운전자가 형상을 보도록 하며, 문양을 구성하는 부분은 재귀반사시트를 사용하여 광이 고장나도 최소한의 재귀반사성능을 유지하도록 하는 방식이며, 조명식 교통안전표지는 내부에 광원을 사용하며, 외부에 투과율이 좋은 재귀반사시트를 사용하여 전원이 없어도 기존의 재귀반사성능을 유지하도록 하는 방식이다.The light-emitting traffic safety sign asks the driver to see the shape by applying a light source to the sign, and the part of the pattern uses a retroreflective sheet to maintain the minimum retroreflective performance even if the light breaks down. The cover uses a light source inside and maintains the existing retroreflective performance without a power source by using a retroreflective sheet having good transmittance outside.
발광형 교통안전표지판은 다수의 LED를 표지판에 부탁함으로써 적은 소비전력을 가지며 야간에 발광함으로써 태양광을 접목한 제품들이 설치되고 있으나 주야간 식별성이 상이하여 설치장소가 늘어남에 따라 도로표지판의 식별성을 통일시켜야 한다는 문제점이 제기되고 있어 추가관련 법규제정이 논의되고 있는 상태이며 발광형 표지판은 외부로 광원이 노출되어 있기 때문에 도로교통법 제 4조 및 동법시행규칙 제 3조에서 규정하고 있는 주의표지, 규제표지, 지시표지, 노면표지, 그리고 보조표지의 종류 중 주의, 규제표지판에 제한적으로 사용되어지고 문자가 포함되는 지시 및 보조 표지판에는 사용할 수 없도록 되어 있다.Emission type traffic safety signs have low power consumption by requesting a large number of LEDs to the signs, and products that combine solar light by emitting light at night are unified, and the identification of road signs is unified as installation places increase due to the different day and night identification. Due to the issue of the law, additional legislation is being discussed, and the luminous signs are exposed to the outside, so the caution signs and regulatory signs prescribed in Article 4 of the Road Traffic Act and Article 3 of the Enforcement Rule of the Act. However, among the types of indication signs, road signs, and supplementary signs, they are limited to caution and regulatory signs and are not available for indications and supplementary signs that contain letters.
그러나 조명식 안전표지판의 사용되는 광원은 외부로 보여지지 않고 투과성 재귀반사체 내부에 설치되므로 이러한 문제점을 극복할 수 있는 방식으로 최근에는 조명식 표지판의 보급이 확산되고 있는 추세이다.However, since the light source used for the illuminated safety signs is installed inside the transparent retroreflective body without being seen from the outside, in recent years, the spread of the illuminated signs has been spreading in such a way as to overcome this problem.
조명식 표지판은 도광판을 이용한 에지방식(EDGE TYPE)과 다수의 LED 패키징을 이용하여 확산시트를 적용한 직하방식이 일반적이다. 도광판을 이용한 에지방식은 전력소모가 적고 슬림한 구조를 가질수 있으나 크기가 커질수록 무게가 커져서 대형 도로표지판 등에 적용시 외부충격이나 외풍에 의해 파손되거나 안전사고를 유발할 가능성이 크며 에지적용방식에 따른 방습이 불가하여 습기에 취약한 문제점을 안고있다.Illuminated signs are generally edge type using light guide plate (EDGE TYPE) and direct type applying diffusion sheet using many LED packaging. Edge method using light guide plate has less power consumption and can have slim structure, but as the size increases, the weight increases, so when applied to large road signs, it is more likely to be damaged by external shocks or drafts or to cause safety accidents. It is impossible to have problems vulnerable to moisture.
직하방식은 방습구조(IP660)를 갖는 LED 패키징을 적용함에 따라 외부온도차나 습도에 대해 도광판 대비 높은 신뢰성을 갖으며 무게감도 크지 않아서 대형 표지판 적용에도 가능한 구조를 가지고 있다. 그러나 확산판을 이용하여 면광원을 이루기 위해 다수의 LED 패키징이 실장되어지며, 전력소모가 도광판 대비 매우 높으며 태양광 모듈을 적용하기가 곤란한 문제점을 가지고있다.The direct method has high reliability compared to the light guide plate with respect to external temperature difference or humidity by applying LED packaging having a moisture proof structure (IP660), and has a structure that can be applied to a large signage because it is not large in weight. However, a plurality of LED packaging is mounted to achieve a surface light source using a diffuser plate, power consumption is very high compared to the light guide plate and has a problem that it is difficult to apply a solar module.
본 발명은 상술한 문제점을 해결하기 위한 것으로서, 운전자나 보행자에게 어떠한 정보 제공을 위해 설치되어 사용되는 발광형 표지판을 제공하되, 상기 발광형 표지판 후면판의 내부에 청색 LED 발광소자를 사용해 조명장치를 구성하고 황색 형광체를 도포한 확산부재를 이용하여 청색광을 확산시켜 확산부재를 통해 백색광을 내게 하여 기존 도광판을 이용한 방법과 동등한 소비적력을 가지나 무게는 경량화 시킨 직하방식의 조명식 표지판 구조를 갖는 기술로써, 방습성이 우수하고 낮은 에너지 소비전력을 갖는 도포표지판의 제조방법을 제공하는 것을 목적으로 한다.The present invention is to solve the above problems, to provide a light-emitting sign that is installed and used to provide any information to the driver or pedestrian, using a blue LED light emitting device in the interior of the light-emitting sign back panel It is a technology that has a direct lighting type signage structure that has a consumption power equivalent to that of a conventional light guide plate by dispersing blue light by using a diffusion member coated with a yellow phosphor and emitting white light through the diffusion member, but with a light weight. An object of the present invention is to provide a method for producing a coated signboard having excellent moisture resistance and low energy consumption.
그러나 본 발명의 목적은 상기에 언급된 목적으로 제한되지 않으며, 언급되지 않은 또 따른 목적은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.However, the object of the present invention is not limited to the above-mentioned object, another object not mentioned will be clearly understood by those skilled in the art from the following description.
상기 목적을 달성하기 위하여, 본 발명은 상기 발광형 표지판은 전면에 안내표시가 도안된 전면판, 상기 전면판과 대치되어 후면에 고정된 후면판; 으로 이루어진 발광형 표지판 본체와 상기 후면판의 내부에 장착되어 소정의 색을 발광하는 복수의 LED 발광소자 및 상기 전면판과 밀착된 상태로 부착되어, 상기 복수의 LED 발광소자에서 발광하는 소정의 색의 광을 확산시킴과 동시에 또 다른 색의 광으로 변환시키는 변환시트로 이루어진다.In order to achieve the above object, the present invention provides a light-emitting sign is a front plate designed on the front display, a rear plate fixed to the rear surface is replaced with the front plate; A plurality of LED light emitting devices mounted on the inside of the light emitting signboard body and the rear panel to emit a predetermined color, and attached in close contact with the front panel, and configured to emit light from the plurality of LED light emitting devices; It is composed of a conversion sheet for diffusing light and converting it into light of another color.
상기 변환시트는 상기 복수의 LED 발광소자로부터 발광되는 소정의 색의 광을 또 다른색의 광으로 변환시키기 위해 상기 변환시트의 표면에 변환형광체를 구비하여 도포시켜 상기 복수의 LED 발광소자에서 발광되는 소정의 색의 광을 상기 변환시트를 통해 확산과 동시에 또 다른 색의 광으로 변환되어 발광된다.The conversion sheet is provided with a conversion phosphor on the surface of the conversion sheet in order to convert the light of a predetermined color emitted from the plurality of LED light emitting elements into another color light is emitted from the plurality of LED light emitting elements Light of a predetermined color is diffused through the conversion sheet and converted into light of another color to emit light.
이때, 상기 복수의 LED 발광소자는 청색광을 발광시키는 청색 LED 발광소자이며,At this time, the plurality of LED light emitting device is a blue LED light emitting device for emitting blue light,
상기 변환시트의 표면에 도포된 변환형광체는 상기 청색 LED 발광소자에서 발광되는 청색광을 백색광으로 변환시켜 발광시키는 황색 형광체로 이루어진다.The conversion phosphor coated on the surface of the conversion sheet includes a yellow phosphor that converts blue light emitted from the blue LED light emitting device into white light and emits light.
또한, 상기 전면판은 안전표지를 나타내는 문자나 도형을 사용해 도안될 수 있고, 상기 전면판에 안전표지가 형성된 반대쪽 면과 상기 황색 형광체가 도포된 변환시트의 도포된 반대쪽 면은 서로 부착되어 상기 본체에 전면부에 위치된다.In addition, the front plate may be designed using a letter or a figure indicating a safety sign, the opposite side on which the safety mark is formed on the front plate and the coated opposite side of the conversion sheet coated with the yellow phosphor are attached to the main body Is located in the front part.
이때, 상기 청색 LED 발광소자는 430㎚ 내지 460㎚의 발광 파장을 갖고, 상기 황색형광체는 상기 청색 LED 발광소자로부터 발광되는 청색광을 여기원으로 하여 565㎚ 내지 590㎚의 피크파장대를 갖는다.In this case, the blue LED light emitting device has a light emission wavelength of 430nm to 460nm, and the yellow phosphor has a peak wavelength band of 565nm to 590nm with blue light emitted from the blue LED light emitting device as an excitation source.
또한, 상기 황색 형광체가 도포된 변환시트의 표면에 특수화합물이 첨가되거나 도트나 엠보싱이나 초미세 패턴구조가 구비되어 형성됨으로써 상기 LED 발광소자로부터 발광되는 청색광의 굴절률을 높여주어 광 확산 효율을 극대화하는 것이 가능하다. In addition, by adding a special compound to the surface of the conversion sheet coated with the yellow phosphor or formed with a dot, embossing or ultra-fine pattern structure to increase the refractive index of the blue light emitted from the LED light emitting device to maximize the light diffusion efficiency It is possible.
본 발명의 특징 및 이점들은 첨부도면에 의거한 다음의 상세한 설명으로 더욱 명백해질 것이다.The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.
이에 앞서 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이고 사전적인 의미로 해석되어서는 아니 되며, 발명자가 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합되는 의미와 개념으로 해석되어야 한다.Prior to this, the terms or words used in this specification and claims are not to be interpreted in a conventional and dictionary sense, and the inventors may appropriately define the concept of terms in order to best explain their invention in the best way possible. Based on the principle that the present invention should be interpreted as meaning and concept corresponding to the technical idea of the present invention.
이상 살펴본 바와 같은 본 발명에 따르면, 발광형 표지판 본체 내부에 청색LED를 배치하여 청색광을 황색 형광체가 도포된 변환시트를 통해 백색광으로 발광하여, 기존 도로표지판 대비 낮은 에너지 소비전력을 가지고 고효율을 낼 수 있고, 방습성이 우수한 효과가 있다.According to the present invention as described above, by placing a blue LED inside the light-emitting sign body to emit blue light as white light through a conversion sheet coated with a yellow phosphor, it can have a high energy consumption with a lower energy consumption than conventional road signs It is effective in moisture resistance.
도 1은 본 발명의 바람직한 실시예에 따른 발광형 표지판 본체의 후면판에 설치된 복수의 LED 발광소자를 나타낸 도면이다.1 is a view showing a plurality of LED light emitting devices installed on the back plate of a light-emitting sign body according to a preferred embodiment of the present invention.
도 2는 본 발명의 바람직한 실시예에 따른 발광형 표지판의 백색광을 발광하는 구조를 나타낸 도면이다.2 is a view showing a structure for emitting white light of the light-emitting sign according to a preferred embodiment of the present invention.
도 3은 본 발명의 바람직한 실시예에 따른 안전표지가 도안된 발광형 표지판 본체의 전면판을 나타낸 도면이다.3 is a view showing the front plate of the light-emitting sign body is designed with a safety sign according to an embodiment of the present invention.
도 4는 본 발명의 실시예를 나타낸 사진이다.4 is a photograph showing an embodiment of the present invention.
도 5는 본 발명의 일 실시예를 나타낸 사시도이다.5 is a perspective view showing an embodiment of the present invention.
이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 설명하기로 한다. 이 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.
또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 하여 내려져야 할 것이다.In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.
아울러, 아래의 실시예는 본 발명의 권리범위를 한정하는 것이 아니라 본 발명의 청구범위에 제시된 구성요소의 예시적인 사항에 불과하며, 본 발명의 명세서 전반에 걸친 기술사상에 포함되고 청구범위의 구성요소에서 균등물로서 치환 가능한 구성요소를 포함하는 실시예는 본 발명의 권리범위에 포함될 수 있다.In addition, the following examples are not intended to limit the scope of the present invention but merely illustrative of the components set forth in the claims of the present invention, which are included in the technical spirit throughout the specification of the present invention and constitute the claims Embodiments that include a substitutable component as an equivalent in the element may be included in the scope of the present invention.
상기 LED를 이용한 발광형 표지판은 운전자나 보행자에게 어떠한 정보를 제공하기 위해 도로와 인도에 설치된다.The light-emitting signs using the LEDs are installed on roads and sidewalks to provide any information to drivers or pedestrians.
상기 LED를 이용한 발광형 표지판 본체(100)는 전면에 안내표시가 도안된 전면판(110)과 상기 전면판(110)과 대치되어 후면에 형성되는 후면판(120)으로 이루어진다.The LED sign body 100 using the LED is composed of a front plate 110 and a front plate 110 is formed on the rear surface is opposed to the front plate 110 is not shown in the guide.
이때, 상기 후면판(120)의 내부에는 소정의 색을 발광하는 복수의 LED 발광소자(130)가 형성된다.In this case, a plurality of LED light emitting devices 130 for emitting a predetermined color is formed in the back plate 120.
또한, 상기 전면판(110)과 부착되어 형성되며, 상기 복수의 LED 발광소자(130)에서 발광하는 소정의 색의 광을 확산시킴과 동시에 또 다른 색의 광으로 변환시키는 변환시트로 이루어져 상기 복수의 LED 발광소자(130)에서 발광되는 소정의 색의 광이 상기 변환시트를 통해 확산과 동시에 또 다른 색의 광으로 변환되어 발광한다.In addition, the front plate 110 is formed and attached, and the plurality of LED light emitting element 130 is made of a conversion sheet for diffusing the light of a predetermined color and at the same time converting the light of another color The light of a predetermined color emitted from the LED light emitting device 130 is diffused through the conversion sheet and converted into light of another color and emits light.
이하 첨부된 도면에 의해 본 발명의 바람직한 실시예를 상세히 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명의 바람직한 실시예에 따른 발광형 표지판 본체(100)의 후면판(120)에 설치된 복수의 LED 발광소자(130)을 나타낸 도면이다.1 is a view showing a plurality of LED light emitting device 130 installed on the back plate 120 of the light-emitting sign body 100 according to a preferred embodiment of the present invention.
도 1을 참조하면, 상기 LED 발광형 표지판 본체의 후면판(120) 내부에 청색 LED 발광소자가 설치되는 것을 볼 수 있다.Referring to Figure 1, it can be seen that the blue LED light emitting device is installed inside the back plate 120 of the LED light-emitting sign body.
도 2는 본 발명의 바람직한 실시예에 따른 발광형 표지판의 백색광을 발광하는 구조를 나타낸 도면이다.2 is a view showing a structure for emitting white light of the light-emitting sign according to a preferred embodiment of the present invention.
도 2를 참조하면, 상기 청색 LED 발광소자에서 발광하는 청색광은 상기 황색 형광체가 도포된 변환시트(140)에 의해 백색광으로 변환되는 과정을 나타낸다.Referring to FIG. 2, the blue light emitted from the blue LED light emitting device is converted into white light by the conversion sheet 140 coated with the yellow phosphor.
상기 변환시트(140)는 상기 복수의 LED 발광소자(130)로부터 발광되는 소정의 색의 광을 또 다른색의 광으로 변환시키기 위해 상기 변환시트(140)의 표면에 변환형광체를 구비하여 도포시켜 상기 복수의 LED 발광소자(130)에서 발광되는 소정의 색의 광을 상기 변환시트(140)를 통해 확산과 동시에 또 다른 색의 광으로 변환되어 발광된다.The conversion sheet 140 is provided with a conversion phosphor on the surface of the conversion sheet 140 in order to convert the light of a predetermined color emitted from the plurality of LED light emitting devices 130 to the light of another color. Light of a predetermined color emitted from the plurality of LED light emitting devices 130 is diffused through the conversion sheet 140 and simultaneously converted into light of another color to emit light.
또한, 상기 황색 형광체가 도포된 변환시트(140)의 표면은 특수화합물이 첨가되거나 엠보처리 혹은 입체감이 있는 패턴처리가 되어있어, 표면이 올록볼록하여 상기 LED 발광소자(130)에서 발광하는 청색광의 굴절률을 높여주어 광 확산이 더 잘 되게 하는 효과를 준다.In addition, the surface of the conversion sheet 140 coated with the yellow phosphor is added with a special compound or embossed or three-dimensional pattern treatment, the surface is convex blue light emitted from the LED light emitting device 130 It increases the refractive index, which makes the light diffuse better.
이때, 상기 변환시트(140)의 표면 엠보처리 혹은 입체감이 있는 패턴처리는 상부 또는 하부 중 한 부분에만 처리되거나, 상부와 하부 두 부분 모두에 처리될 수 있다.At this time, the surface embossing or three-dimensional pattern processing of the conversion sheet 140 may be processed only on one portion of the upper or lower portion, or may be treated on both the upper portion and the lower portion.
더불어, 상기 복수의 LED 발광소자(130)는 청색광을 발광시키는 청색 LED 발광소자이며, 상기 변환시트(140)의 표면에 도포된 변환형광체는 상기 청색 LED 발광소자에서 발광되는 청색광을 백색광으로 변환시켜 발광시키는 황색 형광체로 이루어진다.In addition, the plurality of LED light emitting devices 130 are blue LED light emitting devices for emitting blue light, and the conversion phosphor coated on the surface of the conversion sheet 140 converts blue light emitted from the blue LED light emitting devices into white light. It consists of a yellow phosphor which emits light.
이때, 상기 청색 LED 발광소자(130)는 430㎚ 내지 460㎚의 발광 파장을 갖고, 상기 황색형광체는 상기 청색 LED 발광소자로부터 발광되는 청색광을 여기원으로 하여 565㎚ 내지 590㎚의 피크파장대를 갖는다.In this case, the blue LED light emitting device 130 has a light emission wavelength of 430nm to 460nm, and the yellow phosphor has a peak wavelength band of 565nm to 590nm with blue light emitted from the blue LED light emitting device as an excitation source. .
또한, 상기 황색 형광체가 도포된 변환시트(140)는 폭 넓은 광배향각을 가진다.In addition, the conversion sheet 140 coated with the yellow phosphor has a wide optical alignment angle.
도 3은 본 발명의 바람직한 실시예에 따른 안전표지(111)가 도안된 발광형 표지판 본체의 전면판(110)을 나타낸 도면이다.3 is a view showing the front plate 110 of the light-emitting sign body is designed with a safety sign 111 according to an embodiment of the present invention.
도 3을 참조하면, 상기 변환시트(140)와 부착되어 형성되며 상기 발광형 표지판 본체(100)의 전면판(110)은 도로나 인도에 설치되어 운전자나 보행자에게 어떠한 정보를 제공하기 위한 부분이다.Referring to FIG. 3, the conversion sheet 140 is attached and formed, and the front plate 110 of the light emitting sign body 100 is installed on a road or sidewalk to provide some information to a driver or a pedestrian. .
상기 전면판(110)에는 도로의 굴곡 표시나 제한속도 표시, 기타 운전이나 보행에 필요한 다양한 종류의 정보와 같은 안전표지(111), 교통표지, 공사안내표지 등을 나타내는 문자나 도형을 사용해 도안될 수 있다.The front panel 110 may be designed using characters or graphics indicating safety signs 111, traffic signs, construction guide signs, etc., such as road curvature signs, speed limit signs, and various kinds of information required for driving or walking. Can be.
또한, 상기 전면판(110)에 안전표지가 형성된 반대쪽 면과 상기 황색 형광체가 도포된 변환시트(140)의 반대쪽 면은 서로 부착되어 상기 발광형 표지판 본체(100)에 전면부에 위치되고, 상기 전면판(110)이 형성됨으로써, 빗물이나 먼지 등의 유입을 방지할 수 있다.In addition, the opposite side of the safety cover is formed on the front plate 110 and the opposite side of the conversion sheet 140 is coated with the yellow phosphor is attached to each other is located in the front portion on the light-emitting sign body 100, Since the front plate 110 is formed, it is possible to prevent the inflow of rain water, dust, and the like.
도 4는 본 발명의 실시예를 나타낸 사진이다.4 is a photograph showing an embodiment of the present invention.
도 4를 참조하면, 상기 LED 발광소자를 이용한 발광형 표지판의 실시예를 나타낸 사진으로써, 내부 발광을 나타낸 도면이다.Referring to Figure 4, it is a photograph showing an embodiment of the light-emitting sign using the LED light emitting device, a view showing the internal light emission.
상기 발광형 표지판 본체(100)의 후면판(120)에 청색 LED 패키징이 설치되고, 상기 후면판(120)의 상단부에 상기 황색 형광체가 도포된 변환시트(140)와 상기 안전표지가 도안된 전면판(110)이 함께 부착되어, 상기 안전표지가 도안된 전면판(110)이 상기 본체의 제일 상단부로 형성되어 발광되는 LED 발광소자를 이용한 발광형 표지판을 나타낸 사진이다.Blue LED packaging is installed on the back plate 120 of the light-emitting sign body 100, the front surface of the conversion sheet 140 and the safety sign is coated with the yellow phosphor at the upper end of the back plate 120 The plate 110 is attached together, the front plate 110 is a picture showing a light-emitting sign using the LED light emitting element is formed by the top of the main body 110 is the safety sign is designed.
도 5는 본 발명의 실시예를 나타낸 사시도이다.5 is a perspective view showing an embodiment of the present invention.
이때, 상기 도면에 도안된 갈매기표식은 예시에 불과하고, 다양한 종류의 표식을 도안할 수 있다.In this case, the chevrons illustrated in the drawings are only examples, and various types of markers may be designed.
또한, 상기 발광형 표지판은 직하방식의 조명식 표지판 구조를 갖는 기술로써, 상기 직하방식은 방습구조를 갖는 복수의 LED 발광소자(130)를 적용함에 따라 외부 온도차나 습도에 대비해 도광판 대비 높은 신뢰성을 갖으며 무게감도 크지 않아, 대형표지판 적용에도 가능한 구조를 가지고 있으므로, 상기 방습성이 우수한 LED 발광형 표지판을 만들 수 있다.In addition, the light-emitting sign is a technology having a direct-type lighting sign structure, the direct method has a high reliability compared to the light guide plate against the external temperature difference or humidity by applying a plurality of LED light emitting device 130 having a moisture-proof structure. In addition, since the weight is not great, it has a structure that can be applied to a large sign board, and thus it is possible to make the LED light-emitting sign having excellent moisture resistance.
이상 본 발명을 구체적인 실시예를 통하여 상세히 설명하였으나, 이는 본 발명을 구체적으로 설명하기 위한 것으로, 본 발명은 이에 한정되지 않으며, 본 발명의 기술적 사상 내에서 당 분야의 통상의 지식을 가진 자에 의해 그 변형이나 개량이 가능함이 명백하다.Although the present invention has been described in detail through specific examples, it is intended to describe the present invention in detail, and the present invention is not limited thereto, and should be understood by those skilled in the art within the technical spirit of the present invention. It is obvious that modifications and improvements are possible.
본 발명의 단순한 변형 내지 변경은 모두 본 발명의 범주에 속하는 것으로 본 발명의 구체적인 보호 범위는 첨부된 특허청구범위에 의해 명확해질 것이다.Simple modifications and variations of the present invention are all within the scope of the present invention, and the specific scope of protection of the present invention will be apparent from the appended claims.
교통안전표지판 등에 사용된다. Used for traffic safety signs.

Claims (7)

  1. 정보를 제공하기 위해 도로와 인도에 설치되는 LED를 이용한 발광형 표지판에 있어서,In the light-emitting signs using LEDs installed on roads and sidewalks to provide information,
    상기 발광형 표지판은 전면에 안내표시가 도안된 전면판;The light-emitting sign is a front panel with a guide display on the front;
    상기 전면판과 대치되어 후면에 고정된 후면판; 으로 이루어진 발광형 표지판 본체; 와A rear panel fixed to the rear surface to replace the front panel; Light-emitting sign body made of; Wow
    상기 후면판의 내부에 장착되어 소정의 색을 발광하는 복수의 LED 발광소자;A plurality of LED light emitting devices mounted inside the rear panel to emit a predetermined color;
    상기 전면판과 밀착된 상태로 부착되어, 상기 복수의 LED 발광소자에서 발광하는 소정의 색의 광을 확산시킴과 동시에 또 다른 색의 광으로 변환시키는 변환시트; 로 이루어져 상기 복수의 LED 발광소자에서 발광되는 소정의 색의 광이 상기 변환시트를 통해 확산과 동시에 또 다른 색의 광으로 변환되어 발광되는 것을 특징으로 하는 LED 발광 표지판.A conversion sheet attached in close contact with the front plate to diffuse light of a predetermined color emitted from the plurality of LED light emitting elements and to convert the light into another light; LED light emitting signs characterized in that the light of the predetermined color emitted from the plurality of LED light emitting elements is converted into light of another color at the same time and diffused through the conversion sheet.
  2. 제 1항에 있어서,The method of claim 1,
    상기 변환시트는 상기 복수의 LED 발광소자로부터 발광되는 소정의 색의 광을 또 다른 색의 광으로 변환시키기 위해 상기 변환시트의 표면에 변환형광체; 를 구비하여 도포시켜 상기 복수의 LED 발광소자에서 발광되는 소정의 색의 광을 상기 변환시트를 통해 확산과 동시에 또 다른 색의 광으로 변환되어 발광되는 것을 특징으로 하는 LED 발광 표지판.The conversion sheet may include a conversion phosphor on a surface of the conversion sheet to convert light of a predetermined color emitted from the plurality of LED light emitting devices into light of another color; LED light signs characterized in that the coating is applied to the light of the predetermined color emitted from the plurality of LED light emitting device is diffused through the conversion sheet and converted into light of another color at the same time to emit light.
  3. 제 2항에 있어서,The method of claim 2,
    상기 복수의 LED 발광소자는 청색광을 발광시키는 청색 LED 발광소자; 이며,The plurality of LED light emitting device includes a blue LED light emitting device for emitting blue light; Is,
    상기 변환시트의 표면에 도포된 변환형광체는 상기 청색 LED 발광소자에서 발광되는 청색광을 백색광으로 변환시켜 발광시키는 황색 형광체; 로 이루어진 것을 특징으로 하는 LED 발광 표지판.The conversion phosphor coated on the surface of the conversion sheet is a yellow phosphor for converting the blue light emitted from the blue LED light emitting device to white light to emit light; LED light emitting signs characterized in that consisting of.
  4. 제 1항에 있어서,The method of claim 1,
    상기 전면판은 여러 분야의 안내표지를 나타내는 문자나 도형을 사용해 도안되는 것을 특징으로 하는 LED 발광 표지판.The front panel is a LED light sign characterized in that it is designed using a letter or a figure representing a guide cover of various fields.
  5. 제 4항에 있어서,The method of claim 4, wherein
    상기 전면판에 안내표지가 도안되어 형성된 반대쪽 면과 상기 황색 형광체가 도포된 변환시트의 반대쪽 면은 서로 부착되어 상기 본체에 전면부에 위치되는 것을 특징으로 하는 LED 발광 표지판.The opposite side surface formed by the guide plate is designed on the front plate and the opposite side surface of the conversion sheet coated with the yellow phosphor is attached to each other is located on the front surface in the main body.
  6. 제3항에 있어서,The method of claim 3,
    상기 청색 LED 발광소자는,The blue LED light emitting device,
    430㎚ 내지 460㎚의 발광 파장을 갖고,Has an emission wavelength of 430 nm to 460 nm,
    상기 황색형광체는, The yellow phosphor,
    청색광을 여기원으로 하여 565㎚ 내지 590㎚의 피크파장대를 갖는 것을 특징으로 하는 LED 발광 표지판.An LED light-emitting sign characterized by having a peak wavelength band of 565 nm to 590 nm with blue light as an excitation source.
  7. 제5항에 있어서,The method of claim 5,
    상기 황색 형광체가 도포된 변환시트의 표면에,On the surface of the conversion sheet coated with the yellow phosphor,
    특수화합물이 첨가되거나 도트나 엠보싱이나 초미세 패턴구조가 구비되어 형성됨으로써 상기 LED 발광소자로부터 발광되는 청색광의 굴절률을 높여주어 광 확산 효율을 극대화하는 것이 가능한 것을 특징으로 하는 LED 발광 표지판.The LED light sign characterized in that it is possible to maximize the light diffusion efficiency by increasing the refractive index of the blue light emitted from the LED light emitting device by adding a special compound or is provided with a dot, embossing or ultra-fine pattern structure.
PCT/KR2017/006366 2016-06-17 2017-06-18 Light-emitting type signboard using led WO2017217826A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020160075566A KR20170142318A (en) 2016-06-17 2016-06-17 Luminescent Road Sign Using LED
KR10-2016-0075566 2016-06-17
KR10-2017-0076379 2017-06-16
KR1020170076379A KR20180137138A (en) 2017-06-16 2017-06-16 Luminescent Road Sign Using LED

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10105094A (en) * 1996-09-30 1998-04-24 Sharp Corp Light emitting type sign board
KR20020014130A (en) * 2000-08-16 2002-02-25 박득일 Backlight Unit with Blue LED and Green and Red Emitting Fluorescent Sheet and Producing White Light by Using the Same
KR20050022820A (en) * 2003-08-30 2005-03-08 (주)싸이버뱅크 device for back light unit using LED chip
KR20060046929A (en) * 2004-11-12 2006-05-18 비나텍주식회사 The display device having light guide plate for white light changing
KR20120130301A (en) * 2011-05-22 2012-11-30 오충봉 Road sign plate having a lighting apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10105094A (en) * 1996-09-30 1998-04-24 Sharp Corp Light emitting type sign board
KR20020014130A (en) * 2000-08-16 2002-02-25 박득일 Backlight Unit with Blue LED and Green and Red Emitting Fluorescent Sheet and Producing White Light by Using the Same
KR20050022820A (en) * 2003-08-30 2005-03-08 (주)싸이버뱅크 device for back light unit using LED chip
KR20060046929A (en) * 2004-11-12 2006-05-18 비나텍주식회사 The display device having light guide plate for white light changing
KR20120130301A (en) * 2011-05-22 2012-11-30 오충봉 Road sign plate having a lighting apparatus

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