KR101626724B1 - lighting devices for solid type sign board - Google Patents

lighting devices for solid type sign board Download PDF

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Publication number
KR101626724B1
KR101626724B1 KR1020150140467A KR20150140467A KR101626724B1 KR 101626724 B1 KR101626724 B1 KR 101626724B1 KR 1020150140467 A KR1020150140467 A KR 1020150140467A KR 20150140467 A KR20150140467 A KR 20150140467A KR 101626724 B1 KR101626724 B1 KR 101626724B1
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KR
South Korea
Prior art keywords
light emitting
light
substrate
led
signboard
Prior art date
Application number
KR1020150140467A
Other languages
Korean (ko)
Inventor
안의선
Original Assignee
안의선
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Publication date
Application filed by 안의선 filed Critical 안의선
Priority to KR1020150140467A priority Critical patent/KR101626724B1/en
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Publication of KR101626724B1 publication Critical patent/KR101626724B1/en

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/04Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0413Frames or casing structures therefor
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/04Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0404Signs, boards or panels, illuminated from behind the insignia the light source being enclosed in a box forming the character of the sign
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/20Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent

Abstract

The present invention relates to a lighting device for a three-dimensional light emitting device sign board, which is capable of expressing a distinct three-dimensional effect, effectively radiating heat generated from an LED and reducing a weight thereof. A lighting device, which is installed in front of a flat sign board body to emit three-dimensionally light, includes a rear surface light emitting unit installed to a surface facing the sign board body, and having a substrate installing groove in which an LED substrate is installed; the LED substrate inserted into the substrate installing groove and provided with a plurality of LEDs; and a front light emitting unit installed on a front surface of the LED substrate to transmit forward light emitted from the LEDs.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a lighting device for a solid-
The present invention relates to a lighting means for a stereoscopic type LED signboard, and more particularly to a lighting means for a stereoscopic type LED signboard capable of expressing a clear stereoscopic feeling.
Further, the present invention relates to a lighting device for a three-dimensional LED signboard capable of efficiently dissipating heat generated from LEDs and reducing weight.
In general, various types of signboards are used as means for displaying advertisement means or mutual name for promoting the brand image of the company and the sales of the produced products. Such signboards for advertising are generally used for sales outlets, outdoor spaces of building structures, , Roads and the like. It is important to maximize the efficiency of the advertisement so that these advertising signs can be more effective at less cost.
Although the signboards for advertising are made in various forms, the most commonly used forms for promoting advertisement effects are a planar signboard formed by placing characters and graphics on a substantially rectangular panel, and letters and graphics of the contents to be displayed in a protruding form And a light source is installed in the interior of the room so as to be recognized by the protruding shape in the daytime, and the characters and the figure are visually recognized in the nighttime by the light of the light source.
A conventional signboard for a stereoscopic advertisement is provided with a lower frame having a predetermined accommodation space inside and a lower end of the lower frame is fixed to an architectural structure and a plurality of light emitting units And a printed circuit board having a light emitting diode element.
The upper frame is provided with an acrylic plate for externally expressing light emitted from the light-emitting biodegradable element, and the upper frame is fixed to the lower frame by fastening means such as bolts so that the acrylic plate is not separated from the upper surface of the lower frame. do.
A variety of techniques have been used to facilitate the manufacture and installation of the billboard, and to provide clearer information. The billboards related to the billboard include various patent documents 1 to 3 and others.
Patent Document 1 discloses a light emitting diode package comprising a printed circuit board on which a light emitting diode is mounted, a semitransparent or opaque resin molding compound layer surrounding the printed circuit board, a resin molding compound layer surrounding the light emitting diode mounted on the printed circuit board, A diffusion layer is composed of a resin layer uniformly mixed,
Patent Document 2 discloses an illuminated signboard illuminated by light emitted from a light emitting diode. The illuminated signboard includes a substrate on which a plurality of light emitting diodes are arranged, , The reflective layer is coated on the entire surface of the illuminated body so that light incident from the light emitting diode into the illuminated body is partially reflected by the reflective layer inside the illuminated body and partially transmitted.
Among such conventional technologies, Patent Document 1 discloses that an illuminated signboard using a light emitting diode can disperse light on the entire surface of the illuminated object by a reflection layer, but not only the light can not be evenly dispersed on the front surface as well as the side surface by the same light scattering, It is difficult to obtain continuity of the illumination signboard because the heat is not efficiently emitted. Also, it is vulnerable to color change of ultraviolet rays, and there is a problem that a residual image of a light source remains.
In Patent Document 2, other optical particles such as polyacrylate, polyalkyl methacrylate, polytetrafluoroethylene, silicone, zinc, antimony, titanium, barium and the like can be used as the optical additive mixed in the epoxy resin layer, The color of the color to be produced in the layer may be selectively mixed, and the color of the epoxy resin may be formed by mixing the pigment.
Thus, the conventional light emitting diode structure for a signboard has an advantage that an inexpensive and lightweight light emitting diode structure for a signboard can be manufactured by forming a structure without using an aluminum channel, and a diffusion plate is not used The thickness of the light diffusing agent can be greatly reduced by obtaining the surface light emitting effect by the epoxy resin layer uniformly mixed with the light emitting diode structure, thereby realizing miniaturization of the light emitting diode structure for the signboard.
However, since the conventional structure emits characters on a flat surface, there is a problem that the competitiveness against the advertisement effect is weak.
The technology developed by the present applicant to solve the above problems is the technology of Patent Document 3.
Patent Document 3 discloses a stereolithographic panel comprising a light source, a printed circuit board on which a light source is disposed along a predetermined pattern and on which a thermal paste is formed, and a light source portion including a lower thermal paste for facilitating heat emission and light reflection, The front side has a letter or graphic shape and a rear side has a receiving part for receiving the light source part and has a structural molding part for facilitating the transmission of light and a light emitting part formed on the rear side where the receiving part is provided and emitting light from the light source to the inside of the molding part An outer diffusion part formed on the outer surface side of the molding part for diffusing the light emitted from the light source outside the molding part and a light diffusion sheet formed on the front side of the molding part , The outer diffusion part is formed protruding from the molding part height, and the molding part of acrylic material and the optical part An acid sheet is additionally formed so that light emitted from the light source is uniformly projected to the front side of the three-sided structure.
However, Patent Document 3 structured in this way has a problem that light is outputted only in a single color, so that the signboard is simple and the three-dimensional feeling is low.
1. Korean Patent No. 10-0742753 2. Korean Patent No. 10-0773830 3. Korean Patent No. 10-1186454
SUMMARY OF THE INVENTION It is an object of the present invention to provide an illumination means for a stereoscopic 3D signboard which is capable of expressing a clear stereoscopic effect.
Another object of the present invention is to provide a lighting means for a three-dimensional LED signboard which can display two colors more clearly when composed of two or more colors, can efficiently dissipate heat generated from LEDs, and can reduce weight The purpose.
In order to achieve the above object, according to the present invention, there is provided an illuminating device for a three-dimensional LED signboard, which is installed on a front surface of a flat signboard main body and emits light in three dimensions, the illuminating device being provided on a surface facing the signboard main body, A backlight unit having a substrate mounting groove on which an LED substrate is mounted; An LED substrate inserted into the substrate mounting groove and provided with a plurality of LEDs; And a front emission unit disposed on a front surface of the LED substrate and transmitting light emitted from the LED to the front surface.
Preferably, the front surface of the front light emitting part is provided with a light diffusion layer for diffusing light to uniformly output light from the entire front light emitting part. The light diffusion layer may be formed by attaching a semi-transparent film.
Preferably, the bottom emission portion is formed to be relatively thinner than the top emission portion, and the width of the bottom emission portion is wide so that the edge of the bottom emission portion can be seen from the front side.
A split ring is further provided between the bottom light emitting portion and the front light emitting portion and the LED substrate is supported by a supporting jaw formed in a ring shape in the shape of a letter or a figure displayed on a signboard on the back light emitting portion, The edge of the LED substrate is in contact with the inner peripheral surface of the LED substrate.
Preferably, the front surface of the signboard main body is made of a material capable of reflecting light so as to reflect light of the backlight unit.
As described above, the illumination means for a stereoscopic LCD signboard according to the present invention is provided with a split ring between the front light emitting portion and the bottom light emitting portion, so that the colors of the front footstep and the bottom light emitting portion can be clearly displayed, There is an effect that can be done.
In addition, the present invention can be applied not only to a substrate on which LEDs are mounted with a material having a high thermal conductivity and to connect the substrate to the split ring, but also to form a space between the top emission unit and the bottom emission unit by the split ring, A heat dissipation effect can be enhanced.
The present invention also provides a signboard that is made of a material having a high reflectance so as to reflect light of the backlight unit, thereby providing a more beautiful signboard.
Also, the light emitting diode is provided so as to face the backlight unit, and the front light emitting unit irradiates the light by the reflected light, thereby providing a smooth illumination with a uniform illuminance as a whole.
Fig. 1 is a perspective view of a light-emitting state of an example of a signboard having illumination means for a three-dimensional LED signboard according to the present invention.
2 is an exploded perspective view of an example of a lighting means for a three-dimensional LED signboard according to the present invention.
3 is a cross-sectional view of an example of a lighting means for a three-dimensional LED signboard according to the present invention
Fig. 4 is a perspective view of an unlit state of a signboard having illumination means for stereoscopic 3D signboards according to the present invention. Fig.
While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Like reference numerals are used for like elements in describing each drawing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.
The three-dimensional LED signboard lighting device according to the present invention can express a clear stereoscopic effect, can efficiently dissipate heat generated from the LED, and can reduce weight.
For this purpose, the lighting means 10 for a stereoscopic type LED signboard according to the present invention is installed on the front surface of a flat plate-shaped signboard main body 20 as shown in Fig. 1, and emits light three-dimensionally, I will.
The illuminating means 10 includes a backlight unit 11 provided on a surface facing the signboard main body 20 and having a substrate mounting groove 11g on the front surface thereof for mounting an LED substrate thereon; An LED substrate 12 inserted into the substrate mounting groove 11g and provided with a plurality of LEDs; And a front light emitting unit 14 disposed on the front surface of the LED substrate and transmitting light radiated from the LED to the front surface.
The bottom emission unit 11 and the top emission unit 14 are made of synthetic resin such as acryl and diffuse the light emitted from the LEDs of the LED substrate 12 to smoothly express characters or graphics to be displayed. In other words, it is preferable to prevent the dot phenomenon in which the illuminance is high only at the portion where the LED is installed and the illuminance at the other portion is low, so that the entire illuminance can be maintained. To this end, a translucent material may be used, It is preferable to form the translucent light diffusion layer 14c.
The light diffusing layer 14c diffuses the light emitted from the front light emitting part 14 and the back light emitting part 11 so that the light emitting part emits light uniformly. The light diffusing layer 14c is formed by laminating a translucent film .
As shown in FIGS. 2 and 3, the backlight unit 11 has a substrate mounting groove 11g formed in a front portion thereof, and LEDs formed on the LED substrate 12 are placed in the substrate mounting groove. An LED substrate 12 is provided.
Further, a supporting step 11d is formed at the edge of the bottom emission part 11.
The supporting step 11d is a means for supporting the edge of the LED substrate 12 and is formed along the edge of the bottom emission part 11 as shown in Figs. 2 and 3, and the substrate mounting groove 11g Is formed.
The height of the supporting step 11d must be equal to or greater than the height of the LED provided on the LED substrate 12 to prevent the LED from contacting the inner wall of the backlight unit 11 and prevent the backlight unit from being discolored by the heat of the LED can do.
In addition, it is preferable that the bottom emission portion 11 is formed to be relatively thinner than the top emission portion 14.
The thickness of the bottom emission part 11 and the total amount of the top emission part 14 may vary depending on the surface area of characters or graphics. 2.5 is preferable.
The reason why the thickness of the front light emitting part 14 is increased is because the back light emitting part 11 plays a decorative role and since the front light emitting part 14 is a main expression part of advertisement contents, .
Further, the illumination means for a stereoscopic LCD signboard according to the present invention can provide a more stereoscopic feeling by distinguishing between the bottom emission portion 11 and the front emission portion 14. For this purpose, the bottom emission portion 11 and the front emission And a split ring 13 is further provided between the two portions.
As shown in Figs. 2 and 3, the split ring 13 separates the back light emitting portion 11 and the front light emitting portion 14 from each other by a ring having the same shape as that of a displayed character or figure, The color of the two light emitting portions can be more clearly expressed when the portion 11 and the front light emitting portion 14 are represented by different colors.
The split ring 13 may be made of metal or synthetic resin having excellent thermal conductivity.
The reason why the split ring is made of a thermally conductive material is to use the split ring as a heat dissipating means.
That is, as shown in FIG. 3, the edge portion of the LED substrate 12 is provided in contact with the split ring 13, so that heat generated from the LED substrate can be emitted to the outside.
Of course, the LED substrate is also made of a material having excellent thermal conductivity, so that the heat generated from the LED can be transferred to the outside more quickly, thereby enhancing the heat radiation effect.
In addition, the end portion of the split ring 13, which corresponds to the front light emitting portion 14, is bent inward to widen the contact area with the rear wall of the front light emitting portion to firmly couple the front light emitting portion, So that the backside light-emitting portion is firmly coupled.
In addition, the height of the side wall of the split ring is higher than the support step 11d so that a space is formed on the front surface and the rear surface of the LED substrate 12 supported by the support tine, thereby enhancing the heat radiation effect.
In addition, the illumination means for a stereoscopic LCD signboard according to the present invention may not have a clear color of the backlight unit as the thickness of the backlight unit 11 is thin. Therefore, the width w2 of the bottom surface emitting portion 11 constituting the lighting means of the present invention is formed to be wider than the width w1 of the top surface emitting portion 14.
Accordingly, a part of the relatively thin bottom emission portion 11 protrudes from the edge of the front emission portion 14 and can be expressed more clearly and three-dimensionally.
The signboard having the illumination means for a stereoscopic type LED signboard according to the present invention is constructed such that the front face of the signboard main body 20 is made of a material capable of reflecting light, Can be obtained.
That is, as shown in FIG. 1, when the light of the backlight unit 11 is reflected by the front surface of the signboard main body 20, it may vary depending on the color or reflectance of the surface of the signboard main body. Accordingly, although the light emitting units constituting the lighting means have two colors, the visible colors can be represented by four or more colors of two or more colors, thereby providing a more beautiful signboard.
In the illumination means for stereoscopic 3D signboard according to the present invention configured as described above, the stereoscopic feeling can be expressed in a state in which the LED is off as shown in Fig.
That is, since the split ring 13 between the bottom emission section 11 and the front emission section 14 is added, a more stereoscopic feeling can be given, and even if the illumination is turned off, (11) is reflected and the stereoscopic feeling becomes more distinct.
10: Lighting means 10s: Reflection shade
11: back light emitting portion 11d: supporting jaw 11g: substrate mounting groove
12: LED substrate
13: split ring
14: front light emitting portion 14c: light diffusion layer
20: Signboard body

Claims (7)

  1. (11) having a substrate mounting groove (11g) on which an LED substrate is mounted; An LED substrate 12 inserted into the substrate mounting groove 11g and provided with a plurality of LEDs; And a front light emitting part (14) provided on the front surface of the LED substrate and transmitting light radiated from the LED to the front surface. The front light emitting part (14) is installed on the front surface of the flat panel body In the lighting means 10,
    The backlight unit 11 is relatively thinner and wider than the frontlight unit 14 and a gap between the backlight unit 11 and the frontlight unit 14 is divided by a metal or synthetic resin A ring 13 is further provided so that a part of the thin bottom light emitting portion 11 protrudes from the edge of the front light emitting portion 14 to be expressed more clearly and three-
    The LED substrate 12 is supported by a supporting step 11d formed in a ring shape in the shape of a letter or figure displayed on a signboard on the backside light emitting portion 11, The heat of the LED substrate can be discharged through the split ring by providing the edge of the substrate so as to be in contact with the substrate,
    A light diffusing layer 14c made of a semitransparent film for diffusing light to uniformly emit light from the entire front light emitting part is further provided on the front surface of the front light emitting part,
    The front surface of the signboard main body 20 is made of a material capable of reflecting light,
    The end portion of the split ring 13 corresponding to the front light emitting portion 14 is bent inward to widen the contact area with the rear wall of the front light emitting portion to firmly couple the front light emitting portion, A space is formed on the front and rear surfaces of the LED substrate 12 which is supported by the supporting jaws so that the height of the side walls is higher than the height of the supporting jaws 11d, And the effect of the three-dimensional LED sign is enhanced.
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KR1020150140467A 2015-10-06 2015-10-06 lighting devices for solid type sign board KR101626724B1 (en)

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KR1020150140467A KR101626724B1 (en) 2015-10-06 2015-10-06 lighting devices for solid type sign board

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Application Number Priority Date Filing Date Title
KR1020150140467A KR101626724B1 (en) 2015-10-06 2015-10-06 lighting devices for solid type sign board

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101867372B1 (en) * 2017-11-09 2018-07-17 안의선 solid type sign board
KR102078612B1 (en) * 2018-10-10 2020-02-18 이병철 Luminescence channel of plane type for advertising
KR102111083B1 (en) 2019-09-24 2020-05-14 주식회사한올산업 Three-dimensional sign board

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100742753B1 (en) 2006-07-31 2007-07-25 서상원 Illumination sign using a light emitting diode
KR100773830B1 (en) 2006-04-15 2007-11-06 (주)롬스페이스 Light emitted diode structure for signboard and manufacturing method thereby
KR20120004712U (en) * 2010-12-21 2012-06-29 김길홍 Light Emitting Sign Having Three-dimensional Look
KR101186454B1 (en) 2012-07-31 2012-09-27 안의선 Structure for 3d display pannel
KR20120118534A (en) * 2011-04-19 2012-10-29 박미정 Light emitting signboard apparatus having side lighting surfaces
KR20120138533A (en) * 2011-06-15 2012-12-26 (주)디이아이테크놀로지 Led lamp structure for refrigerator
KR20140122591A (en) * 2013-04-10 2014-10-20 (주)비젼테크솔루션 A LED advertisement sign lighting equipment of front and lear light emitting using channel bar

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100773830B1 (en) 2006-04-15 2007-11-06 (주)롬스페이스 Light emitted diode structure for signboard and manufacturing method thereby
KR100742753B1 (en) 2006-07-31 2007-07-25 서상원 Illumination sign using a light emitting diode
KR20120004712U (en) * 2010-12-21 2012-06-29 김길홍 Light Emitting Sign Having Three-dimensional Look
KR20120118534A (en) * 2011-04-19 2012-10-29 박미정 Light emitting signboard apparatus having side lighting surfaces
KR20120138533A (en) * 2011-06-15 2012-12-26 (주)디이아이테크놀로지 Led lamp structure for refrigerator
KR101186454B1 (en) 2012-07-31 2012-09-27 안의선 Structure for 3d display pannel
KR20140122591A (en) * 2013-04-10 2014-10-20 (주)비젼테크솔루션 A LED advertisement sign lighting equipment of front and lear light emitting using channel bar

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101867372B1 (en) * 2017-11-09 2018-07-17 안의선 solid type sign board
KR102078612B1 (en) * 2018-10-10 2020-02-18 이병철 Luminescence channel of plane type for advertising
KR102111083B1 (en) 2019-09-24 2020-05-14 주식회사한올산업 Three-dimensional sign board

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