KR0139399B1 - Dimmable Display for Mosaic Panel - Google Patents

Abstract

[purpose]

A dimming display device used as a mosaic panel that forms the surface of a plate by attaching a display device or an instrument necessary for a checkerboard metal grit. A high-luminance display surface can be obtained by disposing a light emitting diode at a high density. The heat generated from the plurality of light emitting diodes prevents the display surface or the inside of the display device from becoming hot.

[Configuration]

The entire dimming display device is composed of a mounting table 4 which is a detachable material in the grit, a substrate 5 and a collector 6 mounted on the mounting table. The mounting base 4 is composed of a foot portion 4b which is in surface contact with the partition wall surface 2a of the grit and detached from the grit by a locking jaw 4c, and a seat portion 4a on which a substrate or the like is mounted. The base part 4a and the leg part 4b are metal and are comprised integrally.

As a result, the heat generated by the light source of the light emitting diode is conducted to the metal grit in the mounting table so that the entire heat is effectively radiated.

Description

Dimmable Display for Mosaic Panel

1 is an exploded perspective view of the dimming display device of the present invention.

2 is a partial front view of a mosaic panel equipped with a dimming display

3 is a longitudinal sectional view of the dimming display device of the present invention mounted on a grit.

4 is a longitudinal cross-sectional view of a dimming display device of the present invention mounted on a grit, in which a dimming plate is mounted close to a light emitting diode;

5 is a longitudinal sectional view of a dimming display device having a mounting table consisting of two parts, a left base part and each part.

6 is an exploded perspective view showing an example of a conventional dimming display device;

7 is a side view illustrating an example of a dimming display device using a plurality of conventional light emitting diodes.

＊ Explanation of symbols for main parts of drawing

1: dimming display 2: grit

2a: compartment wall 3: space

4: base 4a: left base

4b: Each part 4c: Jamming jaw

4d: Through-hole 5: Substrate

6: Reflector 7, 7 ': Dimmer plate

9: light emitting diode 11: through-hole

[Industrial use]

The panel or panel is called a mosaic panel. The display panel and instruments are arranged in a grid-like grit space formed in the shape of a vertical and horizontal grid using metal materials such as aluminum die cast or zinc aluminum die cast. It is already known to construct.

A dimming display apparatus for dimming display by a light source such as a light emitting diode is also known in the display of this mosaic panel.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table for the mosaic panel, and more particularly, to a dimming display device in which a light emitting diode is disposed at a high density and easily detachable from a grit.

[Prior art]

In the conventional dimming display device, as shown in FIG. 6, the through hole C is drilled on the surface of the detachable block B of the metal grit A, and the translucent acrylic plate D is inserted thereinto at the same time as the tile B. In general, a dimming unit F for dimming with a relatively small number of light emitting diodes E has been commonly used.

6, a dimming unit is also known in which a casing of the dimming unit F corresponding to the tile B is integrally formed to form a locking piece that comes into contact with the grit.

7 is also known a high density dimming display device in which a plurality of light emitting diodes E and E are arranged at a high density, for example, 16 dots vertically and horizontally on one substrate G as shown.

Such high-density dimming display devices are generally not detachable to the grit of a mosaic panel, but are fixedly arranged by a separate bismuth or the like, and each dimming display device is mainly used to display characters by a combination of light sources that emit light. It is being used for.

[Problem to Solve Invention]

In the conventional combination of the tile B and the light emitting diode E, the brightness is relatively low because the number of light emitting diodes is small.

In order to make the dimming display device easier to see at a higher luminance, the light emitting diode itself must be of high capacity or a substrate on which a high-density light emitting diode is arranged, as indicated by the double-dotted line in FIG. 7, must be accommodated in the tile. .

However, as shown in FIG. 7, when the substrate G in which the light emitting diode E is arranged in the tile B is densely accommodated, work occurring in the light emitting diode E accumulates in the tile B and adversely affects the driving apparatus or the like. In the case where a high capacity light emitting diode is accommodated in the casing of the dimming unit F or the integrated dimming unit shown in FIG. 6, heat is similarly accumulated inside.

In particular, in the case where a large number of high intensity dimming display devices in which light emitting diodes are arranged at high density are arranged adjacent to the panel surface as shown in FIG. 2, the temperature of the dimming device surface is about 80 ° C. due to heat generated from the light emitting diodes. The rise was confirmed.

In view of such a point, the present invention invents a light control device that effectively dissipates heat generated as a light control device for arranging light emitting diodes at high density.

[Means for solving the problem]

The mounting table 4 for attaching and detaching the dimming display device 1 which is easy to attach and detach to the grating metal grit 2, the board | substrate 5 attached to the mounting table 4, and the extractor 6 It is composed of parts.

The mounting table 4 is made of metal, penetrates through the space 3 of the grating 2, contacts the partition wall 2a of the grit 2, and catches the grit 2 at its tip. The flat leg 4b which formed the jaw 4c and the base part 4a to be located in the space surface of the grit 2 are integrally formed.

In other words, the mounting table 4 is made of metal, and is attached to and detached from the grit 2.

The substrate 5 on which the plurality of light emitting diodes 9 and 9 are mounted is fixed on the surface of the upper surface of the base 4a of the mounting table 4, and in front of the substrate 5 of the light emitting diode 9. A light-emitting plate 7 or 7 'having a light transmitting property is mounted on the light-emitting diodes on the substrate 5 by attaching a collector 6 for guiding the light forward. Mount it.

[Action]

When a large number of light emitting diodes 9 and 9 arranged on the substrate 5 at high density are turned on, the heat generated from each light emitting diode 9 becomes a large amount of heat as a whole. The heat generated by the light emitting diode is transferred from the substrate to the metal mounting table 4, which is a heat conductor, that is, the seating portion 4a and the corner portions 4b, and the metal grit 2 that the corner mounting portions 4 are in contact with. ), Is distributed throughout the grit 2, and effectively radiates heat from the surface of the base portion 4a or the corner portion 4b of the mounting table 4 in contact with the outside air.

EXAMPLE

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a dimming display device for a mosaic panel of the present invention will be described with reference to the accompanying drawings.

The dimming display device 1 according to the present invention allows the spaces 3 and 3 of aluminum die cast and zinc aluminum to be formed in a grid shape in a vertical and horizontal manner. In the embodiment shown in FIG. 2, the dimming display devices are spaced apart from each other by the size of one dimming display device two pitches in the longitudinal and horizontal directions of the grit space 3, that is, the four spaces 3 and 3 as one unit. It shows the state that is arranged so that there is no. Of course, the size of the space 3 may correspond to the size of the dimming display device.

As shown in FIG. 1 and FIG. 3, a dimming display device 1 includes a mounting table 4, a substrate 5 mounted on the surface thereof, a lifter 6 mounted on the substrate 5, and the same. It is comprised from the light control plate 7 etc. which are attached by detachable material at the front end. In the illustrated embodiment, a mat 8 having relatively high thermal conductivity is interposed between the mounting table 4 and the substrate 5. The mounting base 4 is formed of a metal material having a good thermal conductivity, for example, an aluminum alloy, and integrally forms the seat portion 4a and the corner portions 4b, and the seat portion 4a is formed according to the basic pitch dimension of the grit 2. The square to be determined. The corner portion 4b penetrates the space 3 in a state of being in surface contact with the partition wall 2a of the grit, and is connected to the partition wall 2a of the grit on its rear surface at the front end of the corner portion 4b. The locking jaw 4c is formed. That is, the corner portion 4b is heat-treated so that its thickness is thinner than the base portion 4a and is easily bent, so that it can be easily engaged with the grit 2 according to its elasticity. The square seat portion 4a has a relatively thick thickness, and cuts through holes 4d in the center portion thereof to form a rectangular frame.

This through hole 4d is necessary for connecting the electrical contact means to the substrate 5 and is effective for exposing the substrate 5 directly to the atmosphere to release heat from the substrate to the atmosphere. The area of contact with the atmosphere is also increased.

The board | substrate 5 fixed to the base part 4a of the mounting table 4 is a dimming board which arrange | positioned many light emitting diodes 9 in matrix form on the surface. This board | substrate 5 contains necessary electric circuits, etc., The aluminum substrate whose material is aluminum may be used. In order to fix the mounting table 4 and the board | substrate 5, it is good to fix the board | substrate 5 to the base part 4a of the mounting board 4 with the bis nail 10 (10).

The collector 6 mounted on the substrate 5 has a shape of a plate whose overall size matches that of the substrate 5, and when placed on the substrate, a plurality of through holes 11 are placed at a position that matches the position of the light emitting diode. It snows up and becomes a passage of light of the light emitting diode 9.

In order to mount the extractor 6 on the substrate 5, both of them can be fixed by any means such as adhesion or adhesion. For example, protrusions (not shown) are provided on the bottom of the extractor 6, Then, it may be engaged with the engagement hole 12 of the substrate 5 so as not to be displaced to the position of the through-hole 11 of the light emitting diode 9 and the extractor 6 on the substrate.

In the embodiment shown in FIG. 1 and FIG. 3, the dimming plate 7 which has a translucency at the open end of the extractor 6 is made detachable by uneven fitting. At this time, the dimming plate 7 is positioned at a distance apart from the light emitting diode 9 of the substrate by the thickness of the collector 6 so as to roughen its surface to diffuse light, such as semi-transparent glass (Srigaras). Therefore, in such a state, the light of the entire light emitting diode is diffused in the selector 6, and at the same time, the light is diffused on the surface of the light control plate to evenly illuminate the entire light control plate with bright light.

In the embodiment shown in FIG. 4, the dimming plate 7 'is mounted in close proximity to the inner bottom surface of the lifter 6, that is, the light emitting diode 9. In this case, light is not diffused in the plurality of light emitting diodes and passes through the light control panel 7 ', which is seen as a point light source when viewed from the front. Therefore, numbers, letters or pictures can be created and displayed by the flashing control of a plurality of light emitting diodes.

In order to make the dimming plate 7 detachable at the open end of the extractor 6, engaging ends 13 and 14 are formed on the outer circumferential surface of the dimming plate 7 and the inner circumferential surface of the extractor 6, respectively. In order to mount the light control plate 7 'on the inside of the collector 6, an end portion 15 for engagement may be formed in the inside of the collector 6. In the embodiment shown in the drawing section 4, the light guide plate 7 or 7 'is mounted at one portion thereof, so that the open end of the lifter 6 and the inside of the lifter 6 can be replaced as necessary. The engagement ends 14 and 15 are formed there.

As shown in FIGS. 3 and 4, the substrate lead wire 16 protrudes from the rear surface of the light emitting diode substrate 5, which protrudes from the through hole 4d of the mounting surface 4 to the rear surface. It is connected to the drive unit 17 of the.

Some of the heat generated in the substrate 5 by dimming the light emitting diode is emitted from the surface of the extractor 6, but most of the heat is generated by the metal 4, i. From the base part 4a and the leg part 4b, it transfers to the grit 2 which is also made of metal with good thermal conductivity, and heat is disperse | distributed to the whole grit 2 whole. In addition, part of the heat is radiated to the atmosphere from the surface of the substrate 5 or the surface of the mounting table 4. Therefore, the heat is not stagnated or accumulated in the interior of the dimmer device 1, and the thermal adverse effect on the driving device 17 and the like is relatively small.

According to the inventor's study, the temperature of the dimming display surface rose to about 80 ° C. in the state indicated by the double-dotted line in FIG. 7, that is, the use state in which the substrate with the high density light emitting diode was mounted on the tile. In the dimming display device according to the embodiment of the present invention, the temperature of the dimming display surface could be dropped below 65 ° C.

As shown in FIG. 1 and FIG. 3, it is desirable to form the mounting table 4 integrally with a metal having excellent thermal conductivity in terms of thermal conductivity. In order to configure the mounting table 4 as such, For example, die-casting of aluminum alloy or aluminum alloy made of roughly c-shaped cross section is cut to a certain standard, and machined near each part to be machined, and each part is subjected to heat treatment called age hardening treatment. It can be manufactured.

However, as shown in FIG. 5, the seat 4a for mounting and mounting the substrate 5 and the seat 4b for attaching and detaching to the grit are separately manufactured. (4b) can also be connected and calibrated with the bismuth (18).

In this way, the structure of each member is relatively simple, so that it can be easily manufactured by press working or the like, and the materials suitable for the seat portion 4a and the portion 4b, for example, each portion may use a spring material having excellent elasticity. It is.

[Effects of the Invention]

According to the present invention of the mosaic panel dimming display device according to claim 1, the light emitted from the light emitting diodes can be effectively radiated to the grit or the atmosphere by a metal mounting table while being able to perform bright surface dimming by a plurality of light emitting diodes. In addition, since the high temperature of the dimming display surface or the inside of the dimming display device is prevented from becoming high, it is possible to avoid adversely affecting thermally on the driving device of the light emitting diode.

According to the present invention as set forth in claim 2, there is provided a dot display (dot display) by a plurality of light emitting diodes, and at this time, the heat generated from the light emitting diodes is effectively dissipated from the metal mounting stand to the grit or the atmosphere. In this way, it is possible to prevent the dimming display surface or the inside of the dimming display device from becoming high temperature, thereby avoiding thermal adverse effects on the driving device of the light emitting diode.

According to the present invention as set forth in claim 3, it is easy to manufacture the mounting table of the dimming display device, and at the same time, the seat part 4a and the respective parts 4b of the mounting stand can be made of materials suitable for the respective functions. It is.

Claims (3)

Flat corners which penetrate the space 3 of the metal grit 2 in a lattice shape and are in surface contact with the partition wall 2a of the grit, and at the front end thereof, the engaging jaw 4c with the grit is formed. 4b) and the mounting base 4 formed integrally with the base 4a positioned on the spatial surface of the grit and detachably mounted on the grit, are made of metal, and the upper surface of the mounting base 4a of the mounting base. Fixing the substrate (5) on which a plurality of light emitting diodes (9) (9) are mounted, the front of the substrate (5) is equipped with a collector (6) for guiding the light of the light emitting diode (9) to the front, A dimming display device for a mosaic panel, characterized in that a light dimming plate (7) having a light-transmitting property is provided at a distal end of the light-emitting diodes (9) (9) on a substrate at the tip of the collector (6). Flat corners which penetrate the space 3 of the metal grit 2 in a lattice shape and are in surface contact with the partition wall 2a of the grit, and at the front end thereof, the engaging jaw 4c with the grit is formed. 4b) and the mounting base 4 formed integrally with the base 4a positioned on the spatial surface of the grit and detachable from the grit, are made of metal, and the upper surface of the mounting base 4a of the mounting base is made of metal. The substrate 5 on which the light emitting diodes 9 and 9 are mounted is fixed, and the front of the substrate 5 is equipped with a collector 6 for guiding the light of the light emitting diode 9 to the front, and 6) A dimming display device for mosaic panel, characterized in that a light dimming plate (7) having a light transmitting property is provided in proximity to the light emitting diodes (9) (9) on the substrate (5). A dimming display device for a mosaic panel according to claim 1 or 2, wherein the corner portions (4b) and the seat portion (4a) are formed separately, and both are joined together to be integrated.