KR101775576B1 - Signs for luminous and reflective - Google Patents

Abstract

More particularly, the present invention relates to a sign for light, reflection, and more specifically, to allow light to be transmitted only to a rim of a black number and a red circle, The present invention relates to a sign for both light and reflection.
The structure of the present invention is characterized in that it comprises a diffuser plate 11 for diffusing light, an outer plate 12 protruding at a predetermined height along the circumference at the rear edge of the diffuser plate 11, (13) protruding at a position spaced a predetermined distance inward and an inner partition plate (14) protruding from the inside of the intermediate partition plate (13) 10); A red reflecting sheet 21 (hereinafter referred to as a " red reflecting sheet ") 21, which is provided on the front edge of the diffusing plate 11 so as to cover a portion between the outside plate 12 and the intermediate partitioning plate 13, A white reflective sheet 22 attached to cover the inner space of the red reflective sheet 21 and a black reflective sheet 23 attached to the center portion of the white reflective sheet 22 to guide the traffic sign (20); A first LED module (30) installed along the outer circumference of the intermediate partition plate (13) so as to irradiate light between the outer plate (12) and the intermediate partition plate (13); A second LED module (35) installed along the inner circumference of the inner partition plate (14) so as to irradiate light in the inner space of the inner partition plate (14); Wherein the light emitted from the second LED module (35) is not transmitted between the front surface of the diffuser plate (11) and the retroreflective sheet (20) or the back surface of the diffuser plate (11) The light reflecting sheet 23 is provided at a portion spaced apart from the front or back corresponding portion of the diffusion plate 11 corresponding to the attachment portion of the sheet 23 and along the rim of the corresponding portion thereof, A traffic indication guide unit (40) for guiding the light emitted from the second LED module to be transmitted and allowing the rim of the traffic indication to emit light; A cover plate (50) coupled to the outer plate (12) and closing the inside of the display panel body (10); Power supply means 60 for supplying power to the first LED module 30 and the second LED module 35; The first LED module 30 and the second LED module 35 are disposed on the bottom surface of the display panel body 10 between the intermediate partition plate 13 and the inner partition plate 14, And a light blocking plate 70 that blocks the incoming light from being radiated to the outside through the diffuser plate 11 when it is introduced through a gap between the inner partition plate 14 and the cover plate 50, ; And

Description

{Signs for luminous and reflective}

More particularly, the present invention relates to a signboard for light, reflection, and more specifically, to allow light to be transmitted only through a rim portion of a black number and a red circle portion, And a light-emitting device.

In general, the road sign facilities include traffic safety signs that correspond to regulations, directions, cautions, and auxiliary signs, and road signs that show the status of roads. These signs are usually attached to a base plate of aluminum material with a reflex reflection paper And it is easy to identify characters or figures on a signboard at night through the recursive reflection of the light of a headlight of an automobile.

However, the conventional signs such as the above-mentioned conventional signs are relatively easy to identify the contents of the sign in the bright circumstance, but are limited to narrow angle of view due to the reflex reflection in the dark like night, Or roads for high-speed driving, the distance perceived by the driver is short, so that it is possible to identify only by approaching to a relatively short distance, and the risk of a traffic accident is extremely high.

Especially, in a region with a large diagonal difference, condensation occurs on the surface of the signboard due to the difference in temperature, so that the characteristic of the reflex reflection is completely lost, so that the information signetting function of the road sign can not be performed at all. And there is a serious demand for measures.

As an invention that partially alleviates these problems, an interior illuminated road sign has been proposed in which a fluorescent lamp is applied to the inside of a sign to enable active emission beyond the limit of passive recursive reflection.

An internal illumination type sign applied with a fluorescent lamp inside a signboard is configured to emit light from the signboard itself by incorporating an illuminating device in the inside of the sign to form a signboard or a color sheet on a flex material.

Such a method uses a 20W or 40W three-wavelength fluorescent lamp as the illumination device, so there is a disadvantage in that the power consumption is relatively high, additional maintenance such as frequent replacement of the fluorescent lamp and periodical cleaning of the label surface are added, There is a problem in that it can not be accurately identified at a long distance. Therefore, it has been used in some areas in the early days and has not been used until now.

Meanwhile, an external illumination system for illuminating the entire signboard by installing an external illumination from the outside has been developed. However, the range of improving the identification is limited to a narrow angle depending on the angle of the illuminated light. In contrast, There is a problem that the recognition of the content is increased while the recognition of the content is deteriorated due to the excessive reflection.

In addition, in addition to the signs of the above methods, a sign board in which an LED is attached in a protruding manner along the outline of a character or figure of a sign has been proposed. However, this technique has a problem that characters or a display figure is displayed on a cover surface by paint or the like, And a plurality of LEDs are provided along the shape of the display graphic to display the light.

Although the technology for installing LEDs has been disclosed in various structures, there is a disadvantage in that the illuminance is lowered due to the installation of caps or covers for protecting the LEDs. In order to overcome this problem, distant identification There was a drawback that it was almost impossible.

Patent Registration No. 1096657 (December 14, 2011, Traffic Safety Signature Improved in Visibility) Patent Registration No. 1047904 (July 4, 2011, sign)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide an image display apparatus and a display method thereof, in which light is transmitted through only a rim portion of a black number and a red circular band, And a red circle, thereby enabling to distinguish clearly and accurately even at a long distance.

In addition, according to the present invention, by attaching a retroreflective sheet having a good transmittance to the front surface of the diffuser plate, the reflection function can be maintained even when the power applied to the first and second LED modules is shut off, , And to provide a reflective sign.

According to an aspect of the present invention, there is provided an image display apparatus including a diffusion plate for diffusing light, an outer plate projecting at a predetermined height along a circumference at a rear edge of the diffusion plate, An intermediate partition plate 13 protruding at a position spaced a predetermined distance from the inside of the outer plate 12 and an inner partition plate 14 protruding from the inside of the intermediate partition plate 13 so as to be spaced apart from each other, A display panel main body 10 forming a space; A red reflecting sheet 21 (hereinafter referred to as a " red reflecting sheet ") 21, which is provided on the front edge of the diffusing plate 11 so as to cover a portion between the outside plate 12 and the intermediate partitioning plate 13, A white reflective sheet 22 attached to cover the inner space of the red reflective sheet 21 and a black reflective sheet 23 attached to the center portion of the white reflective sheet 22 to guide the traffic sign (20); A first LED module (30) installed along the outer circumference of the intermediate partition plate (13) so as to irradiate light between the outer plate (12) and the intermediate partition plate (13); A second LED module (35) installed along the inner circumference of the inner partition plate (14) so as to irradiate light in the inner space of the inner partition plate (14); Wherein the light emitted from the second LED module (35) is not transmitted between the front surface of the diffuser plate (11) and the retroreflective sheet (20) or the back surface of the diffuser plate (11) The light reflecting sheet 23 is provided at a portion spaced apart from the front or back corresponding portion of the diffusion plate 11 corresponding to the attachment portion of the sheet 23 and along the rim of the corresponding portion thereof, A traffic indication guide unit (40) for guiding the light emitted from the second LED module to be transmitted and allowing the rim of the traffic indication to emit light; A cover plate (50) coupled to the outer plate (12) and closing the inside of the display panel body (10); Power supply means 60 for supplying power to the first LED module 30 and the second LED module 35; The first LED module 30 and the second LED module 35 are disposed on the bottom surface of the display panel body 10 between the intermediate partition plate 13 and the inner partition plate 14, And a light blocking plate 70 that blocks the incoming light from being radiated to the outside through the diffuser plate 11 when it is introduced through a gap between the inner partition plate 14 and the cover plate 50, ; And

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According to the light-emitting and reflective signboard having the above configuration, light is transmitted only to the rim portion of the black number and the red circular band portion, and the remaining portion is not blocked or irradiated, thereby increasing the visibility of the black number and the red circle , So that the traffic sign can be accurately identified even at a long distance.

In addition, a retroreflective sheet having a good transmittance is attached to the entire surface of the diffuser plate, thereby allowing the LED light installed inside the traffic sign to be transmitted and maintaining the retroreflective performance, thereby significantly improving the visibility.

1 is a perspective view of a light-emitting and reflective signboard according to the present invention,
FIG. 2 is an exploded perspective view of FIG. 1,
3 is a front view showing the internal structure of the display panel main body according to the present invention,
4 is a cross-sectional view taken along line AA in Fig. 3,
FIG. 5 is a photograph showing a state in which the LED module of the light-
6A and 6B are photographs according to the presence or absence of light when the LED module of the light-emitting, reflective-use signboard according to the present invention is turned ON.

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, wherein like reference numerals refer to the like elements throughout.

3 is a front view showing the internal structure of the display panel main body according to the present invention, and FIG. 4 is a cross-sectional view of the display panel main body according to the present invention. 6A and 6B are views showing a state in which the LED module of the light emitting and reflecting signboard according to the present invention is turned ON In the state of being lighted.

1 to 6B, the light-emitting, reflecting and indicating sign according to the present invention includes a display panel body 10, a retroreflective sheeting 20, a first LED module 30 and a second LED module 35, a traffic display guide unit 40, a cover plate 50, and a power supply unit 60.

The display panel body 10 includes a diffusion plate 11, an outer plate 12 protruding at a predetermined height along a circumference at a rear edge of the diffusion plate 11, An intermediate partition plate 13 protruding at a spaced position and an inner partition plate 14 protruding from the inside of the intermediate partition plate 13 so as to form three spaces.

The diffuser plate 11 is for diffusing light and a known diffuser plate can be used. The outer plate 12, the intermediate diaphragm plate 13 and the inner diaphragm plate 14 are made of a material which does not transmit light Or a sheet made of a material which does not transmit light to the surface may be attached.

Therefore, each of the spaces defined by the outer plate 12, the intermediate partition plate 13, and the inner partition plate 14 is shielded from each other, so that even if the adjacent space is illuminated, the illumination light is not transmitted .

The retroreflective sheet 20 includes a red reflective sheet 21 formed of a ring-shaped band attached to the front edge of the diffuser plate 11, a white reflective sheet 21 attached to cover the inner space of the red reflective sheet 21 22 and a black reflective sheet 23 attached to the center portion of the white reflective sheet 22 for guiding a traffic sign.

The retroreflective sheet 20 is a reflective sheet of the same size as a reflective sheet attached to a normal traffic sign. The retroreflective sheet of the present invention uses light that can transmit light as well as light.

The reason for transmitting the light is that the light emitted from the first LED module and the second LED module in the interior passes through the diffusing plate so that the traffic sign written in the center portion of the retroreflective sheet 20 can be exposed to the outside It is for this reason.

According to the present invention, even if power is not supplied to the first LED module and the second LED module due to the attachment of the retroreflective sheet 20, it is possible to perform the function of the traffic sign board.

The red reflecting sheet 21 is attached to the front edge of the diffuser plate so as to cover a portion between the outer plate 12 and the intermediate partition plate 13 provided on the rear surface of the diffuser plate 11 So that a ring-shaped band in red is displayed on the front edge of the display panel body by the light when the LED of the first LED module 30 emits light.

On the other hand, according to the present invention, when the speed limit is displayed as shown in a traffic sign, for example, as shown in the accompanying drawings, the limit speed is not illuminated by illuminating the speed limit display, So that the speed limit can be clearly identified.

A detailed description will be given later.

The first LED module 30 is installed along the circumference of the outer side surface of the intermediate partition plate 13 so as to irradiate light between the outer plate 12 and the intermediate partition plate 13, 2 LED module 35 is installed along the inner circumferential surface of the inner side partition plate 14 so as to irradiate light to the inner space of the inner side partition plate 14. [

The first LED module and the second LED module are both composed of a substrate and LEDs mounted on the substrate. The power supply unit 60 is connected to the power supply unit 60 so that power is supplied to the first and second LED modules.

The first LED module 30 and the second LED module 35 may be installed along the circumference of the intermediate partition plate 13 and the inner partition plate 14, Or the like.

It is a matter of course that the power supply means 60 is provided with a switch for controlling supply of power.

The traffic indication guide unit 40 is installed inside the inner side partition plate 14 to prevent light from the second LED module 35 from being transmitted through the diffusion plate, Is provided at a portion spaced apart from the corresponding portion of the rear surface of the diffusion plate 11 corresponding to the attachment portion of the diffusion plate 23 and the edge of the corresponding portion.

That is, when the LED of the second LED module 35 emits light, the traffic indication guide unit 40 guides the traffic light to be emitted while the light is transmitted along the rim of the black reflective sheet 23 , The traffic sign of the black reflective sheet can be clearly identified by the light emitted from the front surface of the display panel through the diffusion plate, and visibility can be maintained even at a long distance.

The traffic indication guide unit 40 may be formed on the rear surface of the diffusion plate 11 and may be formed on the front surface of the diffusion plate 11 between the retroreflective sheet 20 and the diffusion plate 11 And is formed on the rear surface of the diffuser plate in the accompanying drawings.

Here, since the black reflection sheet 23 attached to guide the traffic indication is black, light is hardly transmitted. Therefore, light blocking is separately provided on the rear surface corresponding portion of the diffusion sheet corresponding to the black reflection sheet 23 It may not be a problem even if a plate is not provided.

In addition, only the black reflective sheet may be formed as a sheet that is not transmitted through light, so that the black reflective sheet portion may be formed such that light is transmitted only through the outside of the frame of the black reflective sheet while light is not transmitted.

The cover plate 50 is connected to the outer plate 12 and covers the inside of the display panel body 10 so that the power supply unit 60 can cover the first LED module 30, 2 LED module 35. The cover plate 50 may be installed inside the display panel body 10 or may be installed at a specific position adjacent to the traffic sign.

Meanwhile, a light blocking plate 70 is installed in the space between the intermediate partition plate 13 and the inner partition plate 14 to block light.

The reason why the light blocking plate 70 is provided is that since the LED module is not installed in the space between the intermediate partition plate 13 and the inner partition plate 14, There is a possibility that the light in the adjacent space may flow through the gap between the intermediate partition plate 13 and the inner partition plate 14 and the cover plate 50. As a result, The light emitted from the light source may be transmitted through the diffusion plate 11 to be irradiated to the outside.

In a state in which the traffic sign according to the present invention configured as described above is installed, the traffic indication can be confirmed during the daytime by the visual confirmation of the driver as shown in FIG.

In the nighttime, when the headlight light of the vehicle is reflected on the traffic sign, the light is reflected on the retroreflective sheet 20 attached to the front surface of the diffuser plate regardless of whether the LEDs of the first LED module and the second LED module emit light Accordingly, the driver can easily recognize and recognize the traffic sign (see FIG. 6A).

In addition, when the headlight light of the vehicle is not reflected on the traffic sign, the red reflective sheet 21 is illuminated by the light of the first LED module when the LEDs of the first LED module and the second LED module emit light, The edge of the black reflective sheet is illuminated by the light of the module and the driver can clearly identify the traffic sign at a distance (see FIG. 6B).

As described above, the present invention is not intended to transmit light to the entire diffuser plate and illuminate the light through all the red, white, and black reflective sheets, but only illuminate the edges of the red and black reflective sheets, So that it is possible to identify and recognize the traffic sign accurately even at a long distance by the improvement of the visibility.

10: display panel body 11: diffuser plate
12: outer plate 13: intermediate partition plate
14: inner side partition plate 20: retroreflective sheet
21: red reflective sheet 22: white reflective sheet
23: black reflective sheet 30: first LED module
35: second LED module 40: traffic indication guide section
50: cover plate 60: power supply means
70: Light shield plate

Claims (4)

An outer plate 12 protruding at a predetermined height along the circumference at a rear edge of the diffuser plate 11 and a plurality of projections 12 spaced a predetermined distance from the inside of the outer plate 12 A display panel main body 10 constituted by an intermediate partition plate 13 protruded at a position and an inner partition plate 14 protruding and spaced apart from the inside of the intermediate partition plate 13 to form three spaces;
A red reflecting sheet 21 (hereinafter referred to as a " red reflecting sheet ") 21, which is provided on the front edge of the diffusing plate 11 so as to cover a portion between the outside plate 12 and the intermediate partitioning plate 13, A white reflective sheet 22 attached to cover the inner space of the red reflective sheet 21 and a black reflective sheet 23 attached to the center portion of the white reflective sheet 22 to guide the traffic sign (20);
A first LED module (30) installed along the outer circumference of the intermediate partition plate (13) so as to irradiate light between the outer plate (12) and the intermediate partition plate (13);
A second LED module (35) installed along the inner circumference of the inner partition plate (14) so as to irradiate light in the inner space of the inner partition plate (14);
Wherein the light emitted from the second LED module (35) is not transmitted between the front surface of the diffuser plate (11) and the retroreflective sheet (20) or the back surface of the diffuser plate (11) The light reflecting sheet 23 is provided at a portion spaced apart from the front or back corresponding portion of the diffusion plate 11 corresponding to the attachment portion of the sheet 23 and along the rim of the corresponding portion thereof, A traffic indication guide unit (40) for guiding the light emitted from the second LED module to be transmitted and allowing the rim of the traffic indication to emit light;
A cover plate (50) coupled to the outer plate (12) and closing the inside of the display panel body (10);
Power supply means 60 for supplying power to the first LED module 30 and the second LED module 35;
The first LED module 30 and the second LED module 35 are disposed on the bottom surface of the display panel body 10 between the intermediate partition plate 13 and the inner partition plate 14, And a light blocking plate 70 that blocks the incoming light from being radiated to the outside through the diffuser plate 11 when it is introduced through a gap between the inner partition plate 14 and the cover plate 50, ;
And a light source for emitting light.
delete The method according to claim 1,
The first LED module 30 and the second LED module 35 are spaced apart from each other by a predetermined distance along the circumference of the intermediate partition plate 13 and the inner partition plate 14. [ sign.
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