KR20130137863A - Traffic sign board - Google Patents

Abstract

The present invention relates to a traffic sign board and, more particularly, to a traffic sign board allowing a driver to determine the driving direction because the driver can recognize traffic display information at a long distance and can exactly and rapidly recognize traffic display information at night by making the driver to recognize traffic information by using the reflected light by a car headlight especially at night and displaying traffic display information by using self-illumination. The traffic sign board of the present invention is configured to include: a case that has an inside accommodation space and has an opening structure on the front surface; an illuminating plate that is attached to the back surface in the accommodation space and irradiates the front side with light; and a display plate that is attached on the front surface in the accommodation space and displays traffic display information by transmitting light emitted from the illumination plate.

Description

{Traffic sign board}

The present invention relates to a traffic signboard, and more particularly, it relates to a traffic signboard, which allows a driver to recognize traffic information by using reflected light from a headlight of an automobile at night and displays traffic sign information using self- The present invention relates to a traffic sign panel that allows the driver to recognize the traffic information in a long distance so that the driver can determine the driving direction in advance.

To display each kind of information, pictures, images, numbers, letters, etc. are used. A most appropriate example of this is a traffic sign. The traffic sign displays specific information by using various pictures, numbers, and characters.

It is preferable that such a traffic sign board is constructed so as to ensure visibility even at night. A typical traffic signboard forms traffic sign information using a reflective sheet, and when a headlight of a vehicle is illuminated at night, the driver recognizes the traffic sign information through the reflected light.

In general, since the headlight has a forward directivity, the driver often fails to quickly and accurately recognize the traffic signboard disposed at a predetermined height at night, and recognizes the traffic sign information only when the traffic sign is close to the traffic signboard There is a problem in that the driving direction can not be determined in advance.

Therefore, there is a need to provide a traffic signboard that allows the driver to quickly and accurately recognize the traffic sign information and recognize the traffic sign information at a long distance to determine the driving direction in advance. It is necessary to use a structure capable of preventing the possibility of damage due to moisture or moisture. In addition, there is a need to simplify the structure, to facilitate fastening or detachment, and to facilitate maintenance.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the related art as described above, and it is an object of the present invention to provide a traffic information display apparatus and a traffic information display method, in which traffic information is recognized by a driver using reflected light by a headlight of an automobile at night, The present invention provides a traffic sign panel that allows a driver to quickly and accurately recognize traffic display information at night and allows the driver to recognize traffic display information even at a long distance so that the driver can determine the driving direction in advance It is for that purpose.

It is another object of the present invention to provide a traffic sign panel which is simple in structure and easy to be assembled and disassembled and easy to maintain.

It is another object of the present invention to provide a traffic sign board which can easily prevent damage due to moisture and moisture input by improving airtightness of a light emitting plate for generating light.

According to an aspect of the present invention, there is provided a traffic sign panel comprising: a case having a structure having an inner space and an open front; And a display plate attached to a front surface of the accommodating space for transmitting light emitted from the light emitting plate to display traffic display information.

Here, the case may include a base plate constituting a rear surface, and a lid constituting a side surface and a front surface, wherein the base plate is protruded in a front direction along a rim to contact and support the rear surface of the rear surface of the display plate And an opening part for exposing the front surface of the display panel to the outside and a front part for separating the front part of the display panel from the front panel part of the display panel, And a side surface of the lid is integrally connected to the frame portion and fixed to the base plate in a state where the supporting portion and the side surface of the display plate are piled up.

In addition, the case has a hexahedron shape having front, rear, and four sides, and has one side openable and openable. The front surface has an opening for exposing the front surface of the display plate to the outside, Wherein an insertion frame is formed at a front end of the inner space of the case so that the display plate can be inserted from the openable side face and fixedly mounted on the front end of the inner space, And the protrusions formed on the other three sides except for one side having a possible structure are arranged so as to face each other.

The light emitting plate includes a base film on which a circuit pattern is printed, an LED mounted on the base film to be connected to the circuit pattern, and an adhesive plastic film adhered and bonded to the front and rear surfaces of the base film, .

Here, the circuit pattern is printed so that a portion to be mounted on the LED is disconnected, and the LED is mounted so that the disconnected circuit pattern can be electrically connected. After silicon is coated on both contacts of the mounted LED, For 10 hours to 10 hours.

Here, the adhesive plastic film has an adhesive formed on one side of a plastic film, and the plastic film is made of at least one material selected from the group consisting of polyvinyl chloride (PVC), polyvinyl chloride (PVDC), polycarbonate (PC), polypropylene Or the like.

The display plate may further include a light diffusing plate for diffusing light emitted from the light emitting plate, a transmissive reflective sheet attached to a front surface of the light diffusing plate to transmit the diffused light, And a high brightness reflective sheet having an opening corresponding to the traffic indication information.

According to the traffic display panel having the above-described problems and the solution, the driver can recognize the traffic information by using the reflected light by the headlight of the vehicle at night, and display the traffic display information using the self light emission Therefore, the driver can quickly and accurately recognize the traffic display information at night, and the driver can recognize the traffic display information even at a long distance, so that the driver can advance the driving direction in advance.

Further, by simplifying the structure of the traffic sign panel, it is easy to assemble and disassemble, and the maintenance is easy.

Further, by improving the airtightness of the light-emitting plate for generating light, there is an advantage that damage due to water and moisture input can be easily prevented.

1 is an exemplary view of a traffic signboard manufactured according to the present invention.
2 is an exploded perspective view of a traffic sign panel according to a first embodiment of the present invention.
3 is a perspective view of a traffic signboard according to a second embodiment of the present invention.
4 is an exploded perspective view of a light emitting plate according to the present invention.
5 is an exploded perspective view of a display panel according to the present invention.
6 is a configuration diagram of a chamber device for manufacturing a light emitting plate to which the present invention is applied.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a traffic signboard according to the present invention having the above-described problems, solutions and effects will be described in detail with reference to the accompanying drawings.

It is to be understood that the terminology or words used herein are not to be construed in an ordinary sense or a dictionary, and that the inventor can properly define the concept of a term to describe its invention in the best possible way And should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

1 is an assembled perspective view of a traffic signboard according to the present invention. FIG. 1 (a) illustrates a rectangular type traffic signboard, and FIG. 1 (b) illustrates a circular type traffic signboard.

1, a traffic signboard according to the present invention includes a case 10, a display plate 30 attached to the front surface of the case 10 in the receiving space, (Indicated by reference numeral 20 in Fig. 2) attached to the rear surface of the case 10 in the receiving space.

The case 10 may have various shapes such as a polygonal shape including a rectangle or a circular shape when viewed from the front as long as the case 10 has a structure for accommodating the light emitting plate 20 and the display plate 30 have. However, the case 10 has a structure in which the front surface is opened to display traffic display information through the display panel 30. That is, an opening portion (denoted by 13a in Fig. 2) is formed on the front surface.

The light emitting plate 20 and the display plate 30 are attached to the inner space of the case 10 so that the light emitting plate 20 is attached to the rear surface of the inner space of the case 10, 30 are attached to the front surface in the inner space of the case 10.

The light emitting plate 20 is attached to the rear surface in the inner space of the case 10 and irradiates light in a forward direction (a direction in which the display plate 30 is attached). Therefore, as will be described later, the light emitting plate 20 includes an LED for generating and emitting light.

The display panel 30 is attached to the front surface of the case 10 in the interior space. Then, light emitted from the light emitting plate 20 is transmitted to display predetermined traffic display information. That is, the light is generated on the traffic signboard and the predetermined traffic sign information is displayed to the driver.

As described above, the traffic display panel includes the light emitting panel 20 disposed on the rear surface of the case 10, the display panel 30 on the front surface of the case 10, The light emitted from the light emitting plate 20 is incident on and diffused from the display plate 30 by arranging the light emitting plate 20 and the display plate 30 at a predetermined interval, So that more light is transmitted through the portion indicating the predetermined traffic display information, so that the traffic display information can be recognized from the outside.

The traffic sign board according to the present invention can be formed in various structures. FIG. 2 is an exploded perspective view of the traffic sign board according to the first embodiment of the present invention.

As shown in FIG. 2, the traffic sign panel according to the first embodiment of the present invention may be configured such that the case 10 is vertically separated. 2, the case 10 includes a base plate 11 constituting the rear surface 11 of the case, a cover 13 constituting the front surface 13 and the side surface 15 of the case 10 17).

The base plate 11 and the lid 17 are separated in order to attach and dispose the light emitting plate 20 and the display plate 30 to the inside accommodation space, but the light emitting plate 20 and the display plate 30 are attached They are combined with each other by various methods. Various methods such as soldering, clips, hooks, screws, and bolts can be used for the bonding method.

2, the base plate 11 constituting the case 10 includes a rear outer portion 31 of the display plate 30 (a front outer portion 31 of the display plate 30 shown in Fig. 2) And a support portion 11b protruding in the front direction of the case along the rim 11a for contacting and supporting the outer side portion of the opposite side of the case 11b.

The light emitting plate 20 is seated in a portion defined by the support portion 11b. That is, the light emitting plate 20 is attached to the surface of the base plate 11 partitioned by the support portions 11b.

As described above, the rear surface portion of the display plate 30 is seated and supported on the supporting portion 11b formed on the rim 11a of the base plate 11, and the light emitting plate 20 is supported on the supporting portion 11b The light emitting plate 20 and the display plate 30 are disposed apart from each other because they are in contact with the surface of the base plate 11 which is partitioned.

The display plate 30 supported by the support portion 11b formed on the base plate 11 is fixed by the cover 17 constituting the table 10. [

The front surface 13 of the lid 17 has an opening 13a for exposing the front surface of the display plate 30 to the outside and a front surface 13a for separating the opening 13a from the front surface of the display plate 30 31). That is, the front surface 13 of the lid 17 is formed by removing only the outer portion of the plate having the predetermined shape, and the removed portion corresponds to the opening portion 13a, (13b).

The front surface 13 of the lid 17 is integrally connected to the side surface 15 of the lid 17. [ Specifically, the side surface 15 is connected along the edge of the frame portion 13b constituting the front surface of the lid 17. That is, the side surface 15 of the cover is integrally connected to the frame portion 13b, and is fixed to the base plate 11 in a state where the supporting portions 11b and the side surfaces of the display plate 30 are piled up.

The side surface 15 of the lid 17 is fixed to the base plate 11 so that the frame portion 13b constituting the front surface 13 of the lid 17 is fixed to the front outer portion So that the display plate 30 can be kept fixedly attached to the front surface of the inner space of the case 10.

It is possible to prevent damage to the front outer portion 31 of the display plate 30 or to prevent the front outer portion 31 of the display plate 30 from being damaged, A rubber packing, an O-ring, or the like can be interposed between the upper and lower portions 13b.

As shown in FIG. 2, the traffic signboard according to the first embodiment of the present invention may have a rectangular shape when viewed from the front, but may have a circular shape as shown in FIG. 1 (b) . It is preferable that the case 10, the light emitting plate 20 and the display plate 30 have a circular shape when the shape of the traffic sign is circular, and the support 10 formed on the circular base plate 11 11b are also formed along the rim of the circular base plate 11, they preferably have a circular shape.

3 is a perspective view of a traffic signboard according to a second embodiment of the present invention. The traffic sign panel shown in FIG. 3 is different from the traffic sign panel shown in FIG. 2 in that the display panel 30 can be inserted and removed through a side surface. 3 (a) is an exploded perspective view showing the fastening structure of the traffic signboard according to the second embodiment, and FIG. 3 (b) is a perspective view for explaining the internal structure of the traffic signboard according to the second embodiment .

As shown in FIG. 3, the traffic signboard according to the second embodiment of the present invention includes a case 10, a light emitting plate 20, and a display plate 30, as in the first embodiment. However, it differs in that one side is made openable.

That is, the case 10 of the traffic signboard according to the second embodiment of the present invention has a hexahedron shape including a front surface 13, a rear surface 11, and four side surfaces 15. Incidentally, of the four sides, one side is made of a structure capable of opening and closing. The one side surface 15a having the openable and closable structure can be hinged or hinged to one side or the other side, the front surface or the rear surface, thereby forming a structure that can be opened and closed. Of course, one side surface 15a having the openable and closable structure can be opened or closed by using a separate cover.

2, the front surface 13 constituting the case 10 of the traffic display panel according to the second embodiment includes an opening 13a for exposing the front surface of the display panel 30 to the outside, And a frame portion 13b for dividing the frame 13a. That is, the front surface 13 of the case 10 is formed by leaving only the outer portion of the plate of a predetermined shape and removing the inside, and the removed portion corresponds to the opening portion 13a, (13b).

The reason why one side surface 15a of the four side surfaces 15 constituting the case 10 is openable and closable is that when the openable side surface 15a is opened, (30) is inserted into the front end of the inner space of the case (10), or the display board (30) inserted into the front end of the inner space of the case (10) can be replaced.

Of course, the light emitting plate 20 may be attached to the rear surface of the internal space or may be pulled out of the attached light emitting plate 20 while the openable side surface 15a is opened. The fixing of the light emitting plate 20 is performed by fixing the mounting surface of the light emitting plate 20 on the rear surface of the inner space of the case 10 at the time of manufacturing the case 10, Is inserted into the front end of the inner space.

In order to insert the display plate 30 into the front end of the inner space of the case 10, an insertion frame 19 is formed at the front end of the inner space of the case 10. The insertion frame 19 is required to slide the display plate 30 from the openable side surface 15a into the internal accommodation space. That is, the insertion frame 19 is necessary to allow the display board 30 to be inserted from the openable side surface 15a and to be fixedly mounted on the front end of the internal accommodation space.

The insertion frame 19 guides and supports the rim of the display panel 30 and is structured so that the rim of the display panel 30 can be inserted while being slid. 3, the insertion frame 19 includes a frame portion 13b constituting the front surface 13 of the case 10 and a side surface 15b excluding the side surface 15a having the openable and closable structure 15 are formed so as to face each other.

That is, the insert frame 19 is composed of the frame portion 13b and a protrusion 15b protruding from the side surface 15 to the inner accommodating space so that the face of the frame portion 13b faces the face of the frame portion 13b . The frame portion 13b and the protruding portion 15b face each other and face each other and are spaced apart from each other. The distance between the frame portion 13b and the protruding portion 15b is set such that the display plate 30 is inserted into the insertion frame 19, The thickness of the display panel 30 is slightly larger than the thickness of the display panel 30. [

Since the traffic signboard described above displays the corresponding traffic sign information using light, the light-emitting plate 20 is attached to the rear surface of the case 10 in the interior space.

4, the light emitting plate 20 includes a base film 21, a circuit pattern 23 printed on the base film 21, an LED 25 mounted on the circuit pattern, And an adhesive plastic film (27) for protecting the base film (21) including the base film (25).

The base film 21 may be an insulating and very thin film. Specifically, any one of PVC (Polyvinyl chloride), PVDC (polyvinyl chloride), PC (Polycarbonate), PP (Polypropylene) and PET (Polyester) films can be used, And the circuit pattern 23 are formed.

A circuit pattern 23 of a predetermined shape is formed on the base film 21. [ The circuit pattern 23 is printed on the base film 21 so that a power source supplied from a power source (a commercial power source or a solar cell or a general battery) can be supplied to the LED 25. The LED 25 is mounted on the base film 21 to be connected to the circuit pattern 23. The LEDs 25 are mounted using SMT equipment.

As described above, the circuit pattern 23 is formed on the upper part, and the base film 21 on which the LED 25 is mounted is protected by the adhesive plastic film 27. That is, the adhesive plastic film 27 having a waterproof function is adhesively bonded to the front surface, the front surface and the rear surface of the base film 21.

The LED 25 and the circuit pattern 23 are protected from moisture or water by bonding the adhesive plastic film 27 to the base film 21 to thereby extend the life of the L traffic sign board, Safety accidents can be prevented. A method of adhering the adhesive plastic film 27 to the base film 21 will be described later.

The circuit pattern 23 is formed on the base film 21 through a printing method. Specifically, as shown in FIG. 4, the circuit pattern 23 is printed on the upper surface of the base film 21 in a predetermined pattern. At this time, the circuit pattern 23 is printed so that the portion where the LED 25 is to be mounted is disconnected. That is, as shown in Fig. 4, the circuit pattern 23 is formed so as to have the disconnection portion 23 '.

And the LED 25 is mounted on the disconnection portion 23 '. Specifically, the LED 25 is mounted on the single-wire portion 23 'so that the positive contact of the LED 25 is connected to one side of the disconnection portion and the negative contact is connected to the other side of the disconnection portion. That is, the LED 25 is mounted so that the disconnected circuit pattern 23 can be electrically connected.

After the LED 25 is mounted on the disconnection portion 23 'of the circuit pattern 23 as described above, silicon is coated on both contact points of the mounted LED 25, Lt; / RTI > Since the base film 21 is soft, the mounted LED 25 may be detached during the bending process. Therefore, it is preferable to perform a process of fixing the two contacts of the mounted LED 25 using silicon.

In order to enhance the structural stability, the light emitting plate 20 having the above-described structure may be provided with a rigid plate or a separate film which is strong and durable, to the base film 21.

The light emitting plate 20 described above is attached to the rear surface of the inner space of the case 10 so as to irradiate light forward. The light is incident on the display panel 30 attached to the inner front surface of the case 10.

The display panel 30 displays traffic display information having various forms such as numbers, letters, figures, and characters to the outside. That is, in the daytime, the traffic display information is displayed in the same manner as the general traffic display panel, the traffic display information is displayed through the reflection by the headlight of the vehicle during the daytime, and the traffic display information is exposed to the outside through the light transmission .

As shown in FIG. 5, the display panel 30 includes a light diffusion plate 31 for diffusing light emitted from the light emitting plate 20, And a high-luminance reflective sheet (35) which is attached to the transmissive reflective sheet (33) and has an opening (35a) corresponding to the traffic indication information .

The light diffusing plate 31 is formed of a polycarbonate plate having a predetermined thickness to transmit and diffuse the light emitted from the light emitting plate 20.

The light diffusing plate 31 is provided with a transmissive reflective sheet 33 corresponding to a film capable of transmitting most of the light diffused in the light diffusing plate 31 and capable of reflecting light (automobile headlight) ). Therefore, in a state where the transmissive reflective sheet 33 is attached to the front surface of the light diffusing plate 31, the light diffused by the light diffusing plate 31 is mostly emitted to the outside, thereby emitting bright light.

However, since the portion corresponding to the traffic display information must be strongly displayed to the outside, as shown in Fig. 5, the transmission reflection sheet 33 is provided with an opening 35a corresponding to the specific traffic display information Is attached to the reflective sheet 35. The high-

The high-luminance reflective sheet (35) is thicker than the transmissive reflective sheet and has a small light transmittance, and is formed in a color different from that of the transmissive reflective sheet (generally, the reflective reflective sheet White, and the high-brightness reflective sheet is made of blue or green). However, the high-brightness reflective sheet is formed of a material that reflects light that is projected from the outside.

Since the high-luminance reflective sheet 35 is thicker than the transmissive reflective sheet 33 and has a low light transmittance, the light diffused by the light diffusing plate 31 is transmitted through the openings corresponding to the traffic display information The light is transmitted mostly through the transmissive reflective sheet 35 exposed to the outside via the high luminance reflective sheet 35a except for the opening 35a and only a small amount of light is transmitted through the high reflective reflective sheet 35 except for the opening 35a .

Accordingly, when the traffic sign is viewed at night, the open portion 35a corresponding to the traffic indication information corresponding to the portion through which the light is mostly transmitted is very brightly recognized. Therefore, It is possible to recognize quickly and accurately and to recognize the traffic display information even at a long distance.

According to the traffic signboard described above, there is an advantage that the driver can recognize the driver easily, quickly, and remotely at night. 4, since the LED 25 is used as a light source and a separate circuit pattern is formed, it is necessary to protect the LED and the circuit pattern by moisture or moisture . Therefore, there is a need to ensure the airtightness of the light emitting plate 20.

The base film 21 on which the circuit pattern 23 and the LED 25 described above are formed is protected by the adhesive plastic film 27. [ The adhesive plastic film has an adhesive formed on one side of the plastic film. The plastic film may be any one of PVC (polyvinyl chloride), PVDC (polyvinyl chloride), PC (polycarbonate), PP One is preferable.

The LED 25 and the circuit pattern 23 are formed on the base film 21 as described above. Such a base film 21 needs to be protected from external moisture or moisture, and it is necessary to minimize oxidation. For this purpose, the adhesive plastic film 27 must be firmly bonded to the base film 21 and bonded thereto.

Thus, in order to firmly attach the adhesive plastic film 27 to the base film 21, that is, to smoothly attach the adhesive plastic film 27 so that there is no bubble or the like, Thereby performing a method of adhesive bonding to the base film.

Specifically, the process of bonding the adhesive plastic film to the front and back surfaces of the base film on which the circuit pattern is printed and the LED is mounted is performed inside the chamber device shown in Fig.

6, the chamber device 200 includes a chamber 210, a chamber 210, and a holding plate 220. The chamber 210 is held under the chamber 210 in a heated state, A pressure plate 230 installed on the upper side of the chamber for pressing and pressing the adhesive plastic film placed on the fixed base film 21 during the process, And pumping lines 240 and 250 formed in the chamber 210 to form a vacuum atmosphere in the chamber 210. The pumping line is formed of at least one of an upper pumping line 240 and a lower pumping line 250 formed below the chamber.

More specifically, after the base film 21 on which the circuit pattern 23 is printed and the LED is mounted is mounted on the fixing plate 220, the fixing plate 220 is fixed by heating means (not shown) Heat to a temperature.

The base film is preferably placed on the fixing plate heated to a temperature between 60 ° C and 80 ° C. In this state, an adhesive plastic film is placed on the upper portion of the base film. Then, the pressure plate 230 presses the base film on which the adhesive plastic film is placed. That is, the pressure plate contacts and presses the adhesive plastic film placed on the base film.

In this state, a process of converting the inside of the chamber into a vacuum state is performed. That is, the process of attaching the adhesive plastic film to the base film while pumping the air inside the chamber through the pumping line to the outside while maintaining the inside of the chamber in a vacuum state is performed.

Through such a process, bubbles or the like are present between the base film 31 and the adhesive plastic film 27 and can be attached smoothly.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Is also within the scope of protection of the present invention.

10: Case 11: rear surface of the case, base plate
11a: rim of the base plate 11b:
13: front surface of the cover (case) 13a:
13b: frame part 15: side surface of the cover (case)
15a: open side 15b:
17: cover 19: insert frame
20: light emitting plate 21: base film
23: circuit pattern 23 ': disconnection portion of circuit pattern
25: LED 27: Adhesive plastic film
30: display plate 31: light diffuser plate
33: Transmissive reflective sheet 35: High-luminance reflective sheet
35a: an opening corresponding to the traffic display information

Claims (7)

In a traffic sign,
A case having an internal accommodation space and having a front open structure;
A light emitting plate attached to a rear surface of the accommodating space to emit light forward;
And a display panel attached to a front surface of the accommodating space and transmitting light emitted from the light emitting plate to display traffic display information.
The method according to claim 1,
The case includes a base plate constituting a rear surface, and a cover constituting a side surface and a front surface,
Wherein the base plate includes a support portion protruding in a front direction along a rim for contacting and supporting an outer portion of a back surface of the display plate, and the light emitting plate is seated on a portion defined by the support portion,
Wherein the front surface of the cover comprises an opening for exposing the front surface of the display plate to the outside and a frame for separating the opening and fixing the outer surface of the front surface of the display plate to each other, And the side surface of the support plate and the side surface of the display plate are fixed to the base plate while being piled up.
The method according to claim 1,
The case has a hexahedron shape having front, rear and four sides, and has a side opening and closing structure. The front face has an opening for exposing the front surface of the display plate to the outside, and a frame ≪ / RTI >
Wherein the display panel is inserted into a front side of the inner space of the case so as to be inserted into the front side of the inner space and fixedly mounted on the front side of the inner space, And the protruding portions formed on the other three side surfaces are disposed so as to face each other.
The method according to claim 2 or 3,
The light emitting plate includes a base film on which a circuit pattern is printed, an LED mounted on the base film to be connected to the circuit pattern, and an adhesive plastic film adhered and bonded to the front and rear surfaces of the base film Traffic sign with characteristic.
The method of claim 4,
The circuit pattern is printed so that a portion to be mounted on the LED is disconnected, and the LED is mounted so that the disconnected circuit pattern can be electrically connected. After silicon is coated on both contacts of the mounted LED, And drying for 10 hours.
The method according to claim 5,
The adhesive plastic film has an adhesive formed on one side of the plastic film. The plastic film may be any one of PVC (polyvinyl chloride), PVDC (polyvinyl chloride), PC (polycarbonate), PP Wherein the traffic sign is one.
The method according to claim 2 or 3,
The display panel includes a light diffusing plate for diffusing light emitted from the light emitting plate, a transmissive reflective sheet attached to a front surface of the light diffusing plate to transmit the diffused light, And a high luminance reflective sheet having an opening corresponding to the traffic display information.

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