KR200282851Y1 - Election picket using light box of cold cathode fluorescent lamp - Google Patents

Abstract

The present invention relates to an election picket using a light box composed of a plurality of Cold Cathode Fluorescent Lamps (CCFLs). In particular, an inverter method is used to prevent light blurring and to serve as an advertisement board at night. If you use it, you can get excellent advertising effect, and the light is bright and clear, power saving effect and various color change are possible, election using cold cathode fluorescent lamp light box which can be used for election, demonstration, and various vehicle advertisement. It is about a picket.

The present invention is installed on the front and the light frame to form the appearance of the light box; An information board inserted into a rear surface of the light frame, made of a transparent synthetic resin, and printed with a predetermined phrase or pattern on the front surface thereof; Adjacent surface adjacent to the liquid crystal panel is mounted on the back of the information board to emit light forward when the power supply, and to receive the light from the light source through the light source, incident surface, such as fluorescent lamps or LED arrays A light guide device comprising a light guide plate provided with a first pattern and a second pattern on a viewing surface opposite to the light source, a light source reflector disposed to surround the light source, and a light guide plate reflector disposed on a side of the light guide plate; A cover mounted to fix the light emitting device to a rear surface of the light emitting device; It comprises a picket handle fastened by a screw detachably to the lower center portion of the light frame.

Description

ELEMENTATION PICKET USING LIGHT BOX OF COLD CATHODE FLUORESCENT LAMP}

The present invention relates to an election picket using a light box composed of a plurality of Cold Cathode Fluorescent Lamps (CCFLs). In particular, an inverter method is used to prevent light blurring and to serve as an advertisement board at night. When used, the present invention relates to an election picket using a cold-cathode fluorescent lamp lightbox that provides excellent advertising effect, bright and clear light, power saving effect and various color changes.

As is well known, a liquid crystal display generally requires a light source because it uses a light-receiving element that is not capable of self-emission, and displays constant information by turning on / off the light of the light source.

As the liquid crystal display device, an auxiliary light source that can be used whenever necessary using a reflective liquid crystal panel using indoor light is used, and the auxiliary light source uses a front light device that can extend the use time by reducing power consumption. .

Such a front light device arranges a light source on the lower side of the liquid crystal panel and supplies a uniform surface light source to the liquid crystal panel through a light guide plate installed under the liquid crystal panel.

On the other hand, the backlight device provides a uniform surface light source to the liquid crystal panel through a light guide plate disposed directly above the liquid crystal panel by disposing a light source on the upper side of the liquid crystal panel.

Conventional front light devices or backlight devices have a disadvantage in that the viewing angle is narrowed due to the reflection pattern caused by the unidirectional grooves and the uniformity of the plane and the overall brightness are reduced, resulting in light leakage or light staining.

In addition, the conventional liquid crystal display using the front light device or the backlight device as described above not only consumes a lot of power, but also has a disadvantage in that light blurring occurs. There was a disadvantage of deterioration.

In addition, the conventional liquid crystal display device has a disadvantage in that it is impossible to change a variety of colors when manufacturing the advertising board in any one color to reduce the advertising effect.

In addition, conventionally, advertising panels such as shopping malls were separately manufactured, and a separate lighting device was installed on the upper wall to illuminate the advertising panel by irradiating light of a constant illuminance to the advertising panel. However, when the advertising panel is manufactured in this manner, the screw is fastened to fix the lighting device on the wall, so the exterior is not beautiful and the space around the advertising panel is narrow because the space for fixing the separate lighting device must be secured. As it looks and looks complicated, the advertising effect is relatively reduced.

As a means for demonstrators and election assistants to announce certain information to the audience during demonstrations or elections, papers are glued to a wooden board, and the information is manually written on the upper surface, or a pre-printed sheet is attached. In most cases, pickets were used. However, even in the case of such a demonstration picket or election picket, there is a disadvantage that it is not possible to promote the schedule information at night, and the lighting of various colors cannot be used without a separate lighting device.

An object of the present invention is to solve the problems of the prior art as described above, by mounting a light guide plate having a prism pattern in which a large number of square pyramids are engraved on the back of the light box, it is possible to exhibit a high brightness and uniform condensing effect An object of the present invention is to provide an election picket using a light box of a cathode fluorescent lamp.

Another object of the present invention is to provide an election picket using the light box of the cold-cathode fluorescent lamp suitable as an advertising effect and election, demonstration picket, vehicle billboard by preventing the shaking phenomenon by the adoption of the inverter method.

Still another object of the present invention is to provide an election picket using a light box of a cold cathode fluorescent lamp that can be used semi-permanently because the thickness of the light guide plate is not only thin and power saving, but also has a long life of a cold cathode fluorescent lamp.

1 is an exploded perspective view of a light box using a cold cathode fluorescent lamp according to an embodiment of the present invention,

2 is a perspective view of the coupled state of the light box of the present invention,

3 is a schematic configuration diagram of a light emitting device of the present invention;

4 is an enlarged plan view of the light guide plate of FIG. 3;

5 is an enlarged perspective view of a portion “A” of FIG. 4;

6 is an exploded perspective view showing an election picket using a light box configured with a cold cathode fluorescent lamp of the present invention,

7 is a perspective view of the coupled state of FIG.

8 is a perspective view illustrating a vehicle advertising panel using a light box configured with a cold cathode fluorescent lamp of the present invention according to another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

30: light source 32: fluorescent lamp

34: light source reflector 40: light guide plate

42: entrance surface 44: the first pattern

46: second pattern 50: liquid crystal panel

60: Light guide plate reflector

Election picket using the light box of the cold cathode fluorescent lamp of the present invention for achieving the above object is a light frame which is installed on the front to form the appearance of the light box; An information board inserted into a rear surface of the light frame, made of a transparent synthetic resin, and printed with a predetermined phrase or pattern on the front surface thereof; Adjacent surface adjacent to the liquid crystal panel is mounted on the back of the information board to emit light forward when the power supply, and to receive the light from the light source through the light source, incident surface, such as fluorescent lamps or LED arrays A light guide device comprising a light guide plate provided with a first pattern and a second pattern on a viewing surface opposite to the light source, a light source reflector disposed to surround the light source, and a light guide plate reflector disposed on a side of the light guide plate; A cover mounted to fix the light emitting device to a rear surface of the light emitting device; It provides an election picket using a light box of the cold cathode fluorescent lamp comprising a picket handle fastened by a screw detachably to the center of the lower surface of the light frame.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is an exploded perspective view of the light box of the present invention, Figure 2 is a perspective view of the coupled state of the light box of the present invention, the light frame 10 is installed on the front surface of the light box and the light frame 10 of the A light emitting device 20 mounted on a rear surface to emit light forward when the power is supplied, an electronic control unit 30 fixed to the rear surface of the light emitting device 20 to supply power and perform electronic control, and the light emitting device It is composed of a cover 40 that is mounted to secure the (20).

3 and 4 schematically show the light emitting device 100 of the present invention, the light emitting device 100 of the present invention is a light source 30, such as a fluorescent lamp or an LED array, and the light source through the incident surface 42 The first pattern 44 and the second pattern 46 are disposed on the viewing surface 41 opposite to the adjacent surface 48 adjacent to the liquid crystal panel so as to receive light from the 30 and transmit the light to the liquid crystal panel 50. The light guide plate 40 provided, a light source reflecting plate 34 disposed to surround the light source 30, and a light guide plate reflecting plate 60 arranged on the side surface of the light guide plate 40.

However, the light guide plate 40 is made of a light transmitting material, that is, an acrylic resin material such as polymethyl methacrylate (PMMA).

The light converging pattern of the light guide plate 40 is formed on the viewing surface 41, and is arranged discontinuously in the horizontal direction of the light guide plate 40 and the first pattern 44 continuously arranged in the longitudinal direction of the light guide plate 40. The second pattern 46 is provided.

The first and second patterns 44 and 46 may have a plurality of square pyramid-shaped unit patterns that are engraved from the viewing surface 41 of the light guide plate 40 toward the body of the light guide plate 40.

As shown in FIG. 3, the unit pattern is formed by dividing a square pyramid from the surface of the light guide plate 40, that is, four sides of a triangular shape and having a concave shape.

The center portion 45 of the unit pattern 43 is the lowest point, and the square side 47 is the highest point.

In the unit pattern 43, the first surface 49a reflects light coming from the xz plane toward the liquid crystal panel 50, and the second surface 49b is used to reflect light coming from the xy plane toward the liquid crystal panel 50. will be.

In the first pattern 44, the unit patterns 43 are continuously arranged in one direction. That is, the rectangular unit pattern 43, which is dug into a quadrangular pyramid and consists of four triangles, is continuously arranged. The second pattern 46 is discontinuously arranged with the unit patterns 43 at predetermined intervals from each other.

6 is an exploded perspective view showing an election picket using a light box configured with a cold cathode fluorescent lamp of the present invention, Figure 7 is a perspective view of the coupled state of FIG.

Referring to this, a light frame 10 constituting the outline of the light box is installed on the front side, and the information board 60 made of transparent synthetic resin is inserted on the back of the light frame 10, and the information board 60 is inserted. The rear of the light emitting device 20 is mounted to emit light forward when the power supply.

In addition, an electronic control unit 30 is fixedly attached to the rear surface of the light emitting device 20 so as to supply power and control electronically, and a cover 40 mounted to fix the light emitting device 20. It is configured on the back.

Meanwhile, the picket handle 70 is detachably attached to the center of the lower surface of the light frame 10 by a fastening means such as a screw. Thus, the picket is fastened to the lower part of the light frame 10 immediately at an election post or a demonstration site. The picket provided with the handle 70 can be manufactured.

Referring to the embodiment of the present invention configured as described above are as follows.

According to the present invention, when power is supplied, light is emitted from the fluorescent lamp 32 of the light source 30 and at the same time, the light is reflected from the light source reflector 34 to be guided to the incident surface 42 of the light guide plate 40.

In addition, a part of the light is reflected by the first and second patterns 44 and 46 formed on the light guide plate 40 to travel toward the liquid crystal panel 50, and the light propagated toward the side surface of the light guide plate 40 is reflected by the light guide plate reflector ( 60 is reflected back by the light guide plate 40 and then reflected by the first and second patterns 44 and 46 to be incident toward the liquid crystal panel 50.

Therefore, when the light emitted from the reflective liquid crystal panel 50 passes through the first and second patterns 44 and 46 of the viewing surface 41, the light is focused in the viewing direction, thereby realizing more uniform and higher luminance. As the light is emitted through the information board 60 inserted in the device, the information can be accurately recognized at night. In particular, when using the election picket using the light box of the cold cathode fluorescent lamp according to the present invention for election or demonstration, it can be used semi-permanently, so that the information board 60 can be replaced very easily Very easy to use.

In addition, the present invention, as described above, the light has a uniform and high brightness through the first and second patterns 44 and 46, so that when used as an advertising board, it is possible to see an excellent advertising effect, useful when reading medical film Can be used.

On the other hand, the election picket using the light box of the cold cathode fluorescent lamp according to another embodiment of the present invention is not used only as a picket or demonstration picket, as shown in Figure 8 front and rear surfaces of the vehicle 80 It is attached to the outer surface of the door 82 to be able to announce a certain content, such as advertising to the public.

On the other hand, the present invention can bring a color change according to the program control of the electronic control unit 30 when used for advertising can be used as a more effective advertising means.

As described in detail above, the election picket using the light box of the cold cathode fluorescent lamp of the present invention uses an inverter method, which can prevent the shaking, so that bright and clear effects can be obtained according to uniform and high luminance characteristics. The board can of course be useful for medical film reading. In addition, the loss of light can be reduced by forming a continuous first pattern and a discontinuous second pattern having a square pyramid shape so as to correspond to the reflective liquid crystal panel, and power consumption is consumed by about 6 W per lamp to obtain a power saving effect. The design of the present invention can reduce the size of the lamp due to its thin thickness, and can be used semi-permanently because of the long life of the lamp, and the color can be changed by the control of the program, and the Calvin can also be changed.

On the other hand, the present invention has an effect that can effectively inform the information posted on the picket at night, when used for election or demonstration, can be used as an advertising panel of a specific company by attaching to the door of the vehicle, the advertising panel on the vehicle As it is light enough to be used as, it is possible to advertise specific advertisements at night, so you can expect a very effective advertising effect.

Claims (1)

A light frame installed at a front surface of the light box; An information board inserted into a rear surface of the light frame, made of a transparent synthetic resin, and printed with a predetermined phrase or pattern on the front surface thereof; Adjacent surface adjacent to the liquid crystal panel is mounted on the back of the information board to emit light forward when the power supply, and to receive the light from the light source through the light source, incident surface, such as fluorescent lamps or LED arrays A light guide device comprising a light guide plate provided with a first pattern and a second pattern on a viewing surface opposite to the light source, a light source reflector disposed to surround the light source, and a light guide plate reflector disposed on a side of the light guide plate; A cover mounted to fix the light emitting device to a rear surface of the light emitting device; Election picket using a light box of the cold cathode fluorescent lamp, characterized in that it comprises a picket handle fastened by a screw detachably to the center of the lower surface of the light frame.