KR20150133348A - Flat lightings having light-leakage preventing member - Google Patents

Abstract

The present invention relates to a flat lamp including a light-leakage preventing part. The flat lamp includes a canopy part embedding a switched-mode power supply (SMPS); a donut-shaped light source part placed under the canopy part; a connection line part connecting and supporting the donut-shaped light source part and the canopy part while providing power of the SMPS to the donut-shaped light source part; and a lighting panel combined with an outer part of the donut-shaped light source part. A light-leakage preventing part is combined with a border of the lighting panel. The light-leakage preventing part is curved along a border layout of the lighting panel, and prevents light of an LED light source of the donut-shaped light source part, diffusing from the center of a waveguide panel of the lighting panel to the outside, from being leaked out of the border of the lighting panel.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a flat light with a light-

[0001] The present invention relates to a flat panel lighting device having a light-shielding portion, and more particularly, to a flat panel display having a light-shielding portion for preventing light of an LED light source radially diffusing outward from a center of a light- It is about lighting.

Generally, a light guide plate is a component that performs a brightness function and uniform illumination function of a backlight unit (BLU), and is an acrylic injection molding that guides light in a liquid crystal display (LCD) or LED illumination.

On the other hand, LED lighting is well-known as an architectural lighting in outdoor because it has good light resistance and has several colors.

However, the lighting products should be easy to install, and it is also required to cover the bolts used as fixing means when mounting or installing on the lighting installation surface with a cover so as to maintain aesthetically beautiful condition.

Patent Document 1 which is a reflector of a ceiling or the like as a background of the invention has a case attached to a ceiling as a lighting device including a light source and a cover for covering the case, And a pattern layer of a reflector in which one of the check pattern layer, the stripe pattern layer and the radiation pattern is formed by silk printing on the reflector.

However, the reflection plate of Patent Document 1 has a visual sense of stereoscopic effect according to the viewing time of the user and provides a visual sense of sight, and there is no means for preventing light leakage at the edge of the reflection plate, There is a drawback that the finishing quality is very poor.

On the other hand, in the light guide plate structure for controlling the uniformity to the edge in the central part of Patent Document 2 and the illumination lamp using the light guide plate, the light distribution of the light guide plate is shifted from the central portion to the edge, And there is no means for preventing light leakage in the rim.

In particular, the light guide plate of Patent Document 2 can be molded or manufactured to a minimum size. Due to the phenomenon that the LED light is excessively absorbed by the finishing material while the LED light is being processed at the edge of the light guide plate, The light of the light guide plate is lowered compared to the central portion of the light guide plate.

Therefore, in the light guide plate structure that controls the uniformity from the central portion to the edge, concrete means for preventing the light leakage phenomenon even at the central portion and the edge are required.

In addition, Patent Document 1 or Patent Document 2 of the prior art is merely manufactured as an illumination product, and the lighting product itself can clearly express the logo, emblem, or the unique existence of the company itself, or actively communicate , It is not used as a means to realize CI (Corporate Identity) design, which refers to a total cultural strategy that creates a better market environment and management environment by improving the consciousness or constitution of internal and external stakeholders.

[Patent Literature]

(Patent Document 1) Published Utility Model No. 20-2009-0011959 (November 25, 2009)

(Patent Document 2) Korean Patent Laid-Open No. 10-2013-0124923 (November 13, 2013)

Accordingly, it is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a light-emitting device and a light- And a light leakage prevention part capable of hermetically coupling the light leakage prevention part to the edge of the illumination plate part in accordance with the design of the light leakage prevention part so as to be deformable corresponding to the CI (Corporate Identity) design.

According to an aspect of the present invention, there is provided a lighting device comprising: a canopy portion having a built-in Switched-Mode Power Supply (SMPS); a donut fluorescent lamp part spaced below the canopy part; And a lighting plate portion coupled to the outside of the donut-shaped light source portion, wherein the edge of the illumination plate portion is provided with a recessed portion at the center of the light guide plate of the illumination plate portion, And a light-shielding portion which is bent and adhered along the frame layout of the illumination plate portion is coupled so that the light of the LED light source of the donut fluorescent light source radially diffusing outwardly does not leak out from the rim of the illumination plate portion. And a flat panel illumination provided with a light-blocking portion.

Also, according to the present invention, the inner surface of the light-shielding portion and the rim of the illumination plate are coupled to each other through a double-sided tape.

In addition, according to the present invention, the light-shielding portion may surround the edge of the illumination plate portion so as to face the side and corner portions of the edge of the reflection plate, the light guide plate, and the diffusion plate of the illumination plate portion with the double- A polymer body portion containing a light diffusion material and reflecting or diffusing light of the illumination plate portion; A light blocking layer laminated on the outer surface of the polymer body; A metal layer deposited on an outer surface of the light blocking layer; And a protective film layer laminated on the outer surface of the metal layer.

In addition, according to the present invention, the polymer body portion is formed into a cross-sectional shape having a U-shape.

In addition, according to the present invention, the polymer body may be formed of a soft PVC material having a white hue.

In addition, according to the present invention, the light blocking layer may be formed of a soft PVC material having a black color so as to block light transmitted through the polymer body portion of a soft PVC material having a hue of white.

In addition, according to the present invention, the metal layer may be formed by vacuum-depositing a metal on the outer surface of the light blocking layer.

In addition, according to the present invention, the protective film layer may be laminated on the outer surface of the metal layer with a light transmittance of 90 to 100% for preventing glare or scratching, or polyethylene terephthalate or polyethylene naphthalate.

Further, according to the present invention, the illumination plate portion has a shape of either a logo, an emblem, or a CI (Corporate Identity) design.

In order to provide flexibility or flexibility, the flat panel illumination provided with the light-leakage prevention part of the present invention by the above-mentioned problem solution provides a light-shielding part with a soft material, ) Or logos can be easily fabricated and can be neatly finished with a light-shielding portion having flexibility or flexibility enough to bend or bend to fit tightly against the rim of the illumination plate portion of the CI or logo shape There are advantages.

In addition, the light-shielding portion of the present invention includes a polymer body portion enclosing the rim of the illumination plate portion and containing a light diffusion material, a light blocking layer stacked on the outer surface of the polymer body portion, a metal layer deposited on the outer surface of the light blocking layer, And a protection film layer laminated on the outer surface of the metal layer, it is possible to prevent light leakage at the edge of the illumination plate and to maximize the outer shape and aesthetics in the design aspect.

According to another aspect of the present invention, there is provided a lighting apparatus comprising: a canopy portion having a switched-mode power supply (SMPS); a donut fluorescent lamp portion spaced apart from a lower portion of the canopy portion; The present invention is advantageous in that it can be used as a means for interior use, corporate advertisement, and product advertisement through a CI or logo-shaped illumination plate coupled to a donut fluorescent light source, in addition to a pendant type illumination device having excellent aesthetics.

In addition, since the SMPS is provided in the canopy portion which is separated from the donut fluorescent light source and the illumination plate portion and installed on the ceiling or the like, the maintenance work such as the coupling or separation operation of the SMPS can be facilitated.

In addition, the present invention provides a connecting nut portion that can be energized at both ends of each connecting line portion, and can be screwed to the connecting bolt portion of the donut fluorescent light source portion or the canopy portion, and the power of the SMPS of the canopy portion is supplied to the donut fluorescent light source portion There is an advantage that the installation and assembly of the flat panel illumination can be easily performed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a flat panel display with a light leakage preventing part according to an embodiment of the present invention; FIG.
2 is an exploded perspective view of a mounting bracket, a canopy portion, and a connecting line portion of a flat panel lamp having the light leakage prevention portion shown in FIG.
FIG. 3 is a perspective view illustrating a connection line portion and a donut fluorescent light source portion of a flat panel display having the light-shielding portion shown in FIG. 1; FIG.
FIG. 4 is an exploded perspective view for explaining the relationship between the illumination plate and the light leakage preventing portion shown in FIG. 1;
5 is an enlarged cross-sectional view taken along the line AA shown in Fig.
6 is a cross-sectional view for explaining the interaction between the light-leakage preventing portion and the illumination plate shown in Fig. 5;

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a flat panel illumination with light-preventing portions according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a flat panel illumination device having a light leakage prevention part according to an embodiment of the present invention, FIG. 2 is a perspective view illustrating a mounting bracket, a canopy part, and a connection line part, FIG. 3 is a perspective view illustrating a connection line portion and a donut fluorescent light source portion of the flat panel display with the light-shielding portion shown in FIG.

1 and 2, a flat panel lamp having a light leakage preventing part according to an embodiment of the present invention includes a mounting bracket 100, a canopy part 200, a donut fluorescent lamp part 300, (400).

For example, the present embodiment includes a canopy unit 200 having a built-in Switched-Mode Power Supply (SMPS) (not shown), a donut fluorescent lamp unit 300 spaced below the canopy unit 200, A connection line unit 400 for connecting the DC power supply unit 300 and the DC power supply unit 300 to each other and connecting the DC power supply unit 300 to the DC power supply unit 300, And an illumination plate 500 coupled to the outside.

The shape or border layout of the illumination plate 500 may have any one of a logo, an emblem, or a CI (Corporate Identity) design. In addition, the illumination plate 500 may have a layout having various border curves such as a donut shape, a circle shape, a star shape, a triangle shape, a rectangle shape, a pentagon shape, an octagon shape,

Here, the light-shielding portion 600 may be bent or bent so as to be bonded to the edge portion of the illumination plate portion 500 corresponding to the various shapes, and then bonded.

The mounting bracket 100 refers to the angled body 101 having a U-shaped cross section and includes an insertion hole 103 for coupling a plurality of mounting bolts 102 formed on the angle body 101, And a pair of mounting bolts 105 protruding downward from both sides of the bottom surface of the angle body 101. The through- Here, the insertion hole 103 can insert only the screw portion of the mounting bolt 102, and the head portion of the mounting bolt 102 has a size not to be inserted.

The mounting bracket 100 is fixed to a mounting hole (not shown) of an illuminating surface such as a ceiling by a mounting bolt 102. The mounting bracket 100 serves as fixing means for attaching or supporting the canopy portion 200 and further includes a canopy portion 200, a donut fluorescent lamp portion 300, a connecting line portion 400, an illumination plate portion 500, Preventing portion 600 as shown in FIG.

The canopy unit 200 includes a plurality of SMPSs, a dimming driving circuit connected to the SMPS, and an infrared sensor (not shown) connected to the dimming driving circuit in a vertically detachable canopy casing 201 . Here, the infrared sensor is means for controlling illumination ON, OFF, or dimming by an external remote controller (not shown).

A plurality of mounting holes 202 penetrating the canopy casing 201 of the canopy portion 200 in the up and down directions are formed in the canopy portion 200 so that the mounting bolts 105 of the mounting bracket 100 can pass through the canopy portion 200 Respectively. Here, the mounting bolt 105 of the mounting bracket 100 is inserted into the mounting hole 202, and the end of the mounting bolt 105 protrudes from the bottom surface of the canopy casing 201. A mounting nut 203 is screwed to an end of the mounting bolt 105 so that the canopy 200 can be coupled to the mounting bracket 100.

The power input line 204 of the SMPS drawn out of the canopy portion 200 passes through the through hole 104 of the mounting bracket 100 and is electrically connected to a power line .

In addition, three first connecting bolts 205 protrude from the bottom surface of the canopy casing 201 of the canopy part 200 so as to be used for + terminal connection, -terminal connection, and simple connection for power supply. The first connection bolts 205 may be disposed at intervals of 120 degrees along the circumferential direction of the bottom surface of the canopy casing 201 with respect to the center point of the canopy portion 200. Further, the first connection bolt portion 205 for the + terminal connection or the - terminal connection is electrically connected to the power supply output line of the SMPS. Further, the remaining first connecting bolt portion 205 for simple fastening may not be connected to the SMPS but may be simply fixed to the bottom surface of the canopy portion 200.

The donut fluorescent lamp 300 may have a ring shape, a circular shape, an elliptical shape, a tubular shape, or the like.

The donut fluorescent lamp 300 is disposed below the canopy part 200 for the construction of a pendant type lighting device and includes a light source casing 301 in a toroidal or ring shape. In the interior of the light source casing 301 of the donut fluorescent lamp 300, two or more LED bars 302 (see FIG. 1) arranged in a circularly warped state are provided.

The power input side of the LED bar 302 is connected to the second connection bolt 303 formed on the upper surface of the light source casing 301 shown in Fig. Here, the second connection bolt 303 may be disposed at an angle of 120 degrees along the circumferential direction of the upper surface of the light source casing 301 with respect to the center point of the donut-shaped light source 300. That is, the second connection bolt portion 303 is connected to the first connection bolt portion 205 of the above-described cap portion 200 through the connection line portion 400 in a 1: Terminal connection, terminal connection, and simple connection.

The connection line unit 400 includes a total of three wires 403 and a plurality of wires 403, each of which includes two built-in wire cables and one without a power cable so as to be fastened to the first connection bolt unit 205 and the second connection bolt unit 303, And connection nut portions 401 and 402 rotatably connected to both ends of the wire 403. [

The illumination plate 500 has a hollow portion at the center thereof and is coupled to the outer side of the donut fluorescent light source 300 so as to be coupled to the donut fluorescent light source 300 and transmits light from the LED bar of the donut fluorescent light source 300 Receive.

The donut-shaped fluorescent light source 300 is disposed at the center of the illumination plate 500 and the illuminated plate 500 does not need to be deformed according to the layout or design of the illuminated plate 500, May be processed or fabricated to have various layout designs or various types of design configurations, such as star shapes, triangles, squares, pentagons, octagons, polygons, logos, CI design shapes, etc., as well as toroidal or circular shapes. For example, when the logo or CI design configuration of the illumination plate 500 is designed to target a specific company (e.g., Renault Samsung), it is required to shape the eye of the typhoon symmetrically up, down, left, and right with respect to the elliptical hole. At this time, the donut-shaped fluorescent lamp 300 can be simply formed and coupled in an oval shape without the need for deformation of the donut-shaped fluorescent lamp 300 corresponding to the outline line of the shaped eye of the typhoon, This means that the outer shape of the illumination plate 500 can be easily manufactured by merely cutting the outer shape with the eye of the stylized typhoon.

The illumination plate portion 500 can be configured to realize light emission with uniform light distribution. Here, the uniform light emission principle of the light distribution is disclosed in detail in the patent document 2 filed and filed by the present application, and thus can be omitted from the following explanation.

FIG. 4 is an exploded perspective view illustrating the relationship between the illumination plate and the light leakage preventing portion shown in FIG. 1. FIG.

4, the illumination plate 500 includes a reflection plate 510 positioned above the thickness direction of the illumination plate 500, a light guide plate 520 stacked on the bottom of the reflection plate 510, And a diffusion plate 530 laminated on the substrate. Here, the action of the reflection plate 510, the light guide plate 520, and the diffusion plate 530 is described in Patent Document 2 filed by the present applicant, and therefore can be omitted in this embodiment.

The edge of the illumination plate 500 including the reflection plate 510, the light guide plate 520 and the diffusion plate 530 and the inner surface of the light leakage prevention part 600 are coupled to each other through the double- Here, the double-sided tape 700 may also have a cross-sectional shape of a U-shaped.

The light leakage prevention part 600 prevents the light of the LED bar of the donut fluorescent lamp 500 radially diffusing outward from the center of the light guide plate 520 of the illumination plate part 500 from leaking from the edge of the illumination plate part 500, And can be bent and adhered along the edge layout of the illumination plate portion 500.

The light-shielding portion 600 may have a length corresponding to the length of the edge of the illumination plate 500 and may have a cross-sectional shape of U-shaped to cover the edge of the illumination plate 500.

The both ends of the light-shielding portion 600 are connected to each other by using a fixture 601 shown in Fig. 1 and fixed by pressing, so that not only the adhesive force of the double-sided tape 700, but also the physical strength of the fixture 601, And can be fixed to the edge of the illumination plate portion 500. That is, the fixture 601 may have a cross-sectional shape such as a U-shaped cross section so as to be overlapped and pressed on both ends of the light-shielding portion 600 by using a stainless steel plate.

5 is an enlarged cross-sectional view taken along the line A-A shown in Fig.

5, the light leakage preventing part 600 includes a polymer body part 610, a light blocking layer 620, a metal layer 630, and a protective film layer 640, as shown in an enlarged circle B in FIG.

The polymer body portion 610 is disposed between the rim of the illumination plate portion and the inner surface of the polymer body portion 610 with the double-sided tape 700 interposed therebetween, and the side surface of the rim of the reflection plate, And the light diffusing member includes a light diffusing member to reflect or diffuse the light of the illumination plate.

The polymer body portion 610 is flexible enough to be rolled in the longitudinal direction of the polymer body portion 610 or to be bent in correspondence with the shape of the edge of the illumination plate portion or deformed in the width direction of the polymer body portion 610 Which may be a soft PVC material having a white color.

For example, the physical property value of the material of the polymer body portion 610 may be 90% of the base material of PVC, 5% of the light diffusing material, and 5% of the other plastic materials and the flexible material based on the weight percent (100 wt%) have.

As a result of the light leakage prevention test, the polymer body part 610 can prevent the light leakage when the physical property value of the polymer body part 610 is higher than the physical property value, I was able to find out. As a result, it can be seen that the above property value is a critical value capable of exerting a peculiar effect on the present invention.

In addition, since the polymer body portion 610 is formed in a U-shaped cross-section, the edge of the illumination plate portion can be coupled as if it surrounds the frame.

The light blocking layer 620 may be laminated on the outer surface of the polymer body portion 610. In addition, the light blocking layer 620 may be formed so as to surround the end portion of the polymer body portion 610 and extend to a part of the inner surface of the end portion of the polymer body portion 610, as shown enlarged in a circle C . At this time, the polymer body portion 610 is relatively in contact with the polymer body portion 610 so that the light blocking layer 620 is seated on the inner surface of the end portion of the polymer body portion 610, Like layered seating portion 611 which is formed in the inside of the recessed portion 611. [ That is, since the light blocking layer 620 is laminated by using the layer seating portion 611, the level of the surface of the light blocking layer 620 and the surface of the polymer body portion 610 can be matched with each other and can be formed smoothly .

The light blocking layer 620 may be formed of a soft PVC material having a black color so as to block light transmitted through the polymer body portion 610 of soft PVC having a white hue.

The metal layer 630 may be deposited on the outer surface of the light blocking layer 620. Here, the metal layer 630 may be formed by vacuum-depositing a metal on the outer surface of the light blocking layer 620.

The protective film layer 640 is laminated on the outer surface of the metal layer 630 and may play a role of preventing glare or preventing scratches. For example, the protective film layer 640 may be formed of polyethylene terephthalate or polyethylene naphthalate having a light transmittance of 90 to 100% on the outer surface of the metal layer. At this time, the protective film layer 640 may have a thickness of about 50 to 250 탆, and protects the metal layer 630 by vacuum deposition.

Here, the thickness of the metal layer 630 and the protective film layer 640 may be determined corresponding to the thickness of the double-sided tape 700. That is, the metal layer 630 and the protective film layer 640 may protrude from the polymer body portion 610 or the light blocking layer 620 by the thickness of the double-sided tape 700, The light-shielding portion 600 can be formed on the inner surface of the light-shielding plate portion 612 such that the light-shielding portion 600 is hermetically sealed by the double- Bonded or bonded to each other. 6, one side of the double-sided tape 700 is bonded to the inner surface of the polymer body portion 610, which is the inner surface of the light-leakage preventing portion 600, May be adhered to the rim of the illumination plate portion 500 or to the outer surface of the reflection plate 510.

Hereinafter, the function of the light-leakage prevention portion will be described.

6 is a cross-sectional view for explaining the interaction between the light leakage preventing portion and the illumination plate shown in FIG.

Referring to FIG. 6, the illumination plate 500 includes a reflection plate 510, a light guide plate 520, and a diffusion plate 530, as described above.

The light F transmitted to the edge of the illumination plate 500 through the light guide plate 520 of the illumination plate 500 arrives at the light leakage preventing part 600. Thereafter, the light is transmitted through the double-sided tape 700 and projected to the polymer body portion 610 side. At this time, the polymer body part 610 diffuses a part of the light F through the light diffusing material to form the diffused light D. In addition, the remainder of the light F can pass through the polymer body portion 610, but is blocked by the light blocking layer 620. In addition, the diffused light D can be generated as described above, and the diffused light D can cancel the excessive light absorption at the edge of the conventional illumination plate 500, thereby preventing the light drop phenomenon.

The double-sided tape 700 is sandwiched between the light-shielding portion 600 and the illumination plate portion 500 by the layer seating portion 611 and the adhesive space portion 612 described above with reference to FIG. Since the mutual adhesion can be realized, the light leakage can be prevented originally, and the problem caused by the light drop phenomenon can be solved.

In addition, the light-shielding portion 600 can be a lighting product having a high-quality logo and a CI design through a metal layer 630 and a protective film layer 640, while providing a design aesthetically pleasing feeling and preventing scratches and glare .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of illustration, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: mounting bracket 200: canopy portion
300: donut fluorescent source part 400: connection line part
500: illumination plate part 600:
610: polymer body portion 620: light blocking layer
630: metal layer 640: protective film layer
700: double-sided tape

Claims (9)

A donut-shaped fluorescent light source part disposed below the canopy part, and a donut-shaped fluorescent light source part connected to the canopy part and the donut- And a lighting plate portion coupled to the outside of the donut-shaped fluorescent light source,
The light of the LED light source of the donut-shaped fluorescent light source radially diffusing outward from the center of the light guide plate of the illumination plate is prevented from leaking from the rim of the illumination plate, and the light guide plate is curved along the rim layout of the illumination plate, And a light-shielding prevention part which is in close contact with the light-shielding part.
The method according to claim 1,
Wherein the inner surface of the light-shielding portion and the rim of the illumination plate are coupled to each other through a double-faced tape.
3. The method of claim 2,
The light-
The light guide plate and the diffuser plate of the illuminating plate portion with the double-sided tape interposed therebetween so as to face the side and the corner portions of the rim of the light guide plate and the diffuser plate, A polymer body portion for reflecting or diffusing the light of the plate portion;
A light blocking layer laminated on the outer surface of the polymer body;
A metal layer deposited on an outer surface of the light blocking layer; And
And a protective film layer laminated on the outer surface of the metal layer.
The method of claim 3,
Wherein the polymer body is formed in a U-shaped cross-section.
5. The method of claim 4,
Wherein the polymer body is formed of a soft PVC material having a white hue.
6. The method of claim 5,
Wherein the light blocking layer is formed of a soft PVC material having a black color so as to block light transmitted through the polymer body of a soft PVC material having a white hue.
The method of claim 3,
Wherein the metal layer is formed by vacuum-depositing metal on the outer surface of the light blocking layer.
8. The method of claim 7,
Wherein the protective film layer is made of polyethylene terephthalate or polyethylene naphthalate having a light transmittance of 90 to 100% for preventing glare or scratching, and is laminated on the outer surface of the metal layer.
The method according to claim 1,
Wherein the illumination plate has one of a logo, an emblem, and a CI (corporate identity) design.

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