JPH06274113A - Display device - Google Patents

Abstract

PURPOSE:To obtain uniform luminance without color unevenness by cutting a groove in one surface of a substrate and displaying an optional display body, forming a recessed groove in a flank of the substrate, and embedding a light source in the recessed groove. CONSTITUTION:The display body 2 such as an optional figure, a character, and a symbol is formed by cutting one surface (reverse surface) of the acryl plate 1 by using a router. Then another display body 6 different from the display body 2 cut in the substrate 1 is provided by drawing, printing, etc., on the opposite surface of a display layer 5 from the surface of the substrate 1 where the display body 6 is provided. The light source 7 such as a midget lamp and a light emitting diode is embedded in the recessed groove 1a formed in the flank of the substrate 1 and powered on by an optional power source to emit light. When the midget lamp 7 illuminates, the light from the midget lamp 7 passes in the acryl plate 1 and is reflected on the groove of the display body 2. The reflected light embosses the display body 2, which is distinctly displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly to a thin display device which can be used for advertisement or decoration and which has a uniform brightness without color unevenness.

[0002]

2. Description of the Related Art Conventionally, a display device of this type is one in which a fluorescent lamp is built in the housing at an appropriate distance in front of and behind the sign body, and the sign body is raised by the light of the fluorescent lamp. It was used for guiding lights to show emergency exits, advertising signs, and displaying train timetables.

[0003]

However, the conventional display device has a drawback in that the housing must be deep because the distance between the indicator and the fluorescent lamp must be kept, and the housing becomes large. In addition, the central part and the corner of the housing have different brightness, which causes color unevenness, and in order to prevent this, the number of fluorescent lamps must be increased, which causes problems such as an increase in power consumption and an increase in temperature. The present invention has been made to solve the problems as described above,
It is an object of the present invention to provide a thin and uniform display device with extremely low power consumption and no color unevenness.

[0004]

A display device according to the present invention displays an arbitrary sign by cutting a groove on one surface of a substrate,
In addition, a concave groove is formed on the side surface of the substrate, and a light source such as a miniature electric bulb or a light emitting diode is embedded in the concave groove.
Either one side or both sides can be used to cut the groove. Further, the light source is not limited to cutting and embedding the groove in the substrate, but may be simply irradiating from the side surface of the substrate without providing the groove. However, in this case, the amount of light decreases, so the power source is increased accordingly.
The sign is provided not only on the substrate but also on the display layer that overlaps with the substrate, and a sign different from the sign on the substrate is drawn on the display layer so that it can be displayed three-dimensionally by combining, for example, the sea and the ship. May be. Further, a plurality of substrates may be overlapped to display more three-dimensionally, or fluorescent paint may be applied to the groove, or fluorescent paint may be applied instead of cutting the groove on the indicator to display it. May be attached.

[0005]

In the display device configured as described above, when the miniature bulb on the side surface of the substrate is turned on, the light of the miniature bulb passes through the substrate and is reflected by the cut groove. The refraction and reflection of this light makes the sign stand out clearly. Further, since the direct light passes through the substrate, it is displayed with uniform brightness in every corner, and color unevenness does not occur. Since a space between the light source and the substrate is not required, it can be made thin.

[0006]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a front view of a display device of the present invention, FIG. 2 is an exploded perspective view of essential parts, and FIG. 3 is an enlarged cross-sectional view thereof. In these figures, reference numeral 1 is a substrate, which has a certain thickness (2 to 3 mm).
Above, transparent, semi-transparent, single color, and other plastics such as acrylic resin, vinyl chloride resin, polyester, etc. having a color that does not affect the marking of the marking object described later,
Light such as miniature bulbs embedded in the side surface of glass or the like can be transmitted through the substrate to display the marking object drawn in the groove. In the embodiment, an acrylic plate having a thickness of 5 mm is used, and one surface (back surface) of the acrylic plate is cut with a router or the like to a depth of 2 to 3 mm to cut a marking body 2 (a ship in the embodiment) of arbitrary figures, characters, symbols and the like. To do. The surface on which the sign 2 is cut is the front surface, the back surface, or both surfaces. 3 is an aurorasheet, 4 is a transparent film, 5 is a display layer such as imitation paper or poster, and a marking body 6 (preferably the marking body 2) different from the marking body 2 cut on the substrate 1 on one surface thereof. (In the illustrated example, the background of the sea and mountains against the ship)
Is drawn on the surface of the substrate 1 that faces the surface displaying the marking body 2,
Expressed by printing, etc. Reference numeral 7 is a light source such as a miniature bulb or a light emitting diode, which is embedded in a groove 1a formed in the side surface of the substrate 1 and is made to emit light by an arbitrary power source. 8 is a frame that doubles as a blindfold
Numerals 9 are protective plates such as cork and cardboard.

When the miniature bulb 7 is turned on by using the above display device as a panel for decoration in the room, the light of the miniature bulb passes through the acrylic plate 1 and is reflected by the groove of the sign 2. The reflected light raises the marking body 2 to display it clearly. In particular, the intensity and strength of the light can be changed by changing the depth and angle of the groove, and various landscapes can be enjoyed by changing the color of each miniature light bulb and the order of lighting. FIG. 4 shows an example in which a plurality of (three) substrates 1 and display layers are superposed, and when the marking bodies 2 on each substrate 1 are displayed at slightly displaced positions, a three-dimensional display becomes possible, which is a panel that has never existed before. Can be realized. Further, if the power source of each substrate 1 is turned on at a different time, it is possible to make the display object appear to be moving. Further, the marking body 2 of the substrate 1 may be coated with fluorescent paint or attached with a white tape instead of cutting the groove.

[0008]

As described above, according to the present invention, since light is emitted from the side end face, it is possible to realize an extremely thin panel without requiring a distance between the light source and the sign as in the conventional case. For this reason, it can be used for wall hangings, menus, indoor signboards, etc., which were difficult in the past. Further, since the light passes through the substrate, even if the substrate is enlarged, it is uniform and does not cause color unevenness. The power consumption is extremely low and there is no problem of temperature rise in the housing. Furthermore, not only the substrate but also the display layer is superposed, and the use of a plurality of substrates has an advantage that a stereoscopic image can be obtained.

[Brief description of drawings]

FIG. 1 is a front view of a display device of the present invention.

FIG. 2 is an exploded perspective view of a main part.

FIG. 3 is a cross sectional view thereof.

FIG. 4 is a cross-sectional view of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 2 Marker 3 Aurora sheet 4 Moisture-proof film 5 Display layer 6 Marker 7 Light source

Claims (6)

[Claims] 1. A display device, wherein a groove is cut on one surface to form a groove on a side surface of a substrate on which an indicator is displayed, and a light source is embedded in the groove. 2. A substrate on which a groove is cut on one surface to display an indicator, and a display layer on which an indicator different from the indicator on the substrate is displayed are provided, and a concave groove is formed on a side surface of the substrate. A display device in which a light source is embedded in the groove. 3. The display device according to claim 1, wherein a plurality of the substrates are stacked, a concave groove is formed on a side surface of each substrate, and a light source is embedded in each concave groove. 4. The display device according to claim 1, wherein the groove is coated with a fluorescent paint. 5. The display device according to claim 1, 2 or 3, wherein the indicator on the substrate is displayed by applying a fluorescent paint. 6. A display device according to claim 1, 2 or 3, wherein the indicator on the substrate is displayed by attaching a white tape.