JPH1145062A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device which can display data clearly independently of day or night with less power consumption and which can be used for sales promotion of a secondhand car and the like. SOLUTION: Many light emitting diode light sources 5 are flickered and displayed in front of a surface plate 2 on which a price and the like are classified by coloring by a fluorescent printing layer 3a and a shade printing layer 3b through a filter 4 setting a substantial flicker ratio indicating a time ratio of lighting/(lighting + lights-out) to a low ratio by an intermittent lighting circuit 6 through a timer circuit 7, making a battery 9 of a vehicle to be sold a power source, thereby making it visible as a flicker ratio of' apparent 1/1 or a near value.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device having excellent visibility not only during the daytime but also at night.

[0002]

2. Description of the Related Art For example, the sale of a used car at a used car exhibition hall is made of cardboard or plastic on a dashboard of the car to be sold, which indicates the price, model year, characteristics of the car, and other necessary items for sale. The company informs prospective buyers of the necessary items for sale, such as by setting up a display panel or hanging it on a rear-view mirror in the room.

[0003]

According to the conventional display method, the displayed price and the like can be visually recognized at a bright time in the daytime, but the visibility is not significantly reduced at night. Absent. In particular, many of the used car exhibition halls are scattered along the so-called highway, so although the price of the vehicle etc. is displayed as large as possible so that the purchaser who is purchasing the vehicle while traveling is readable, As mentioned above, there is no visibility at night.

In order to improve the visibility of the display panel at night, it is conceivable to illuminate the display panel. However, illuminating throughout the night consumes a large amount of electric power, and the number of lights increases. Applying to each of the sold vehicles incurs significant expense.

In view of the above situation, the present invention has been made to provide a display device capable of performing clear display with little power consumption at night as well as visibility in the daytime, and capable of performing a display with high advertising effect. Things.

[0006]

In order to achieve the above object, a display device according to the present invention comprises a display plate having a display portion formed at a required portion, and a display device having a low ratio disposed behind the display plate. And a light source capable of displaying light by intermittent lighting only through the display section of the display panel.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the display device of the present invention, a display plate is formed of a glass plate or a transparent plastic plate, or a transparent acrylic resin plate having a rear surface roughened by a diamond cut process. The display panel is provided with a display portion formed by a figure, a symbol, a numeral, or a combination thereof.

This display section forms a display section by applying a translucent fluorescent paint to a required portion of the translucent plate-like body, and forms a display section of the plate-like body other than the display section. It can be formed by making the whole light-opaque by applying a light-shielding paint.

[0009] Further, this display portion leaves a required portion of the plate-like body having translucency, forms a transparent portion by applying a light-shielding paint to the remaining portion, and displays the transparent portion as a display. Is also good.

[0010] Further, the display section may be formed as a display section by forming a through-hole by punching a required portion of a plate-like body that is entirely opaque. In this case, since the display portion is non-colored, a translucent plate is interposed between the display plate and the light source behind the display plate, a fluorescent paint is applied to the plate, and light from the fluorescent paint is applied to the transparent portion. Alternatively, the light is transmitted to the outside only through the through hole.

The display plate may be formed of a single plate having a required size. For example, when a price of a used car or the like is used for display, the price fluctuates. It is desirable that the display panel is formed of a plurality of translucent plate-like bodies so that the display panel can be easily corrected.

The light source capable of performing the intermittent lighting is preferably constituted by a plurality of ultra-bright light emitting diodes in order to reduce power consumption as much as possible, and a battery is used as a power source thereof. Is preferred.

In particular, when the display device is used for selling a used car, a battery mounted on the used car and capable of discharging only when the engine is stopped is used to reduce the wiring of the display device itself. Complexity can be prevented, there is no risk of electric shock, and power consumption can be further reduced by blinking the light source only at night by linking with a timer or an optical sensor.

In the intermittent lighting of the light source, a substantial blinking ratio indicating a lighting / (lighting + lighting out) time ratio is set to a low ratio in view of reduction of power consumption and improvement of attention of the display itself by the display device. By doing this, the illusion of the human eye and the afterimage caused by blinking are apparently 1/1 (meaning the same cycle when the light is on and the light is off), or a blinking ratio near that. Thus, the contents displayed on the display unit can be easily read.

The actual blinking ratio for visually recognizing the apparent blinking ratio of 1/1 or a blinking ratio in the vicinity thereof may be a low blinking ratio in the range of 1/20 to 1/1000. Preferably, the flashing interval is set to 0.3 seconds to 5 seconds together with the flashing ratio, more preferably 0.3 to 0.
The range is 7 seconds.

If the virtual blinking ratio deviates from the upper and lower limits of this range, the apparent blinking ratio is consequently reduced to 1/1.
Alternatively, it is difficult to hold the lens in the vicinity thereof, and it is not possible to provide clear and reliable visibility. When the above-mentioned blinking interval is less than 0.3 second, it appears as continuous lighting, and accordingly, the brightness decreases and the image appears darker. On the other hand, if the time exceeds 5 seconds, the lighting is extended as intermittent lighting, and it is impossible to effectively use the afterimage.

Between the display plate and the light source constituting the display device, a filter whose entire surface of the transparent acrylic resin plate is diamond-cut to make the surface rough is interposed to diffusely reflect the light from the light source. By dispersing the light, the light emitting characteristics of the light emitting diode can be improved, and the light emitting diode is blindfolded, so that the internal state does not appear to the outside and the appearance can be improved. When a transparent acrylic resin plate whose surface is roughened by applying a diamond cutting process to the back surface is used, the same effect as described above can be achieved without interposing a filter.

When a display device is constituted by the display plate and the light source, sliding grooves are formed at upper and lower edges of a front portion of a box-shaped device main body having an open front portion, and the display plate is formed in the groove. The display contents can be easily and easily changed by being attached so as to be insertable. In this case, the display contents can be easily changed by changing only the necessary display plates by using a display plate composed of a plurality of display plates.

In the above display device, when a light source for illuminating the display plate mounted in the opening from the back is provided in the device main body, there is an interval in the front-rear direction between the inner surfaces of the upper plate and the lower plate of the device main body. If each groove is formed correspondingly and both ends of the substrate on which a large number of light emitting diodes are mounted are inserted into the groove, the distance of the light source to the display panel can be easily changed by changing the position of the groove. Brightness can be adjusted.

[0020]

According to the display device of the present invention, a display panel is coated with a fluorescent paint and other portions are shielded from light, or the display portion of the display plate is made light-transmissive, and the display panel is provided with a light source. Irradiation is performed from the back side with flashing light by intermittent lighting through the transparent plate body coated with the fluorescent paint interposed between the light emitting elements, so that the visibility can be greatly improved. Since this light source is intermittently lit by light emitting diodes, by appropriately selecting the blinking interval and the blinking ratio, it is possible to greatly improve the attention of the display unit at night and to reduce power consumption to the maximum. Therefore, the apparatus itself can be made compact by using a battery as a power source.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the display device according to the present invention will be described below with reference to the accompanying drawings. The display device 1 shown in FIG. 1 or FIG. 2 is a display device for displaying the selling price of each vehicle at a used car exhibition hall, and is basically a box-shaped device main body 1a having a relatively shallow depth. Surface plate 2 detachably provided on the front surface 1b, and a number of high-brightness light emitting diodes (hereinafter referred to as L) for irradiating the surface plate 2 from the back side.
The light source 5 is equipped with 5a, 5a,.... In FIG. 1, reference numeral 4 denotes a filter formed by cutting a transparent acrylic plate with diamonds, and 6 denotes an intermittent light source for controlling the light source 5. A lighting circuit, 7 is a timer circuit, 8 is a cable, 9 is a battery mounted on the vehicle that can only discharge and is not in a charged state.

As shown in FIG. 2, the apparatus main body 1a has a relatively flat box shape having a length of about 170 mm, a width of about 400 mm, and a depth of about 40 mm.
d, recessed slide grooves 1e, 1e are formed in the vicinity of the front opening on the inner surface opposite to the opening d, and the opening on the back side is fixed to the cover plate 1f with screws, and the relative positions of the upper plate 1c and the lower plate 1d are fixed. The slide groove 1
In addition to e, a plurality of fitting grooves 1g, 1g,... for mounting the light source 5 at predetermined intervals in the front-rear direction are formed, and the whole is made of aluminum and is lightweight.

The display device 1 has a timer circuit 7 connected to a battery 9 via a power cable 8 and operates using the battery 9 as a power source. The battery 9 is mounted on a vehicle to be sold. And does not use any special wiring or battery pack.

As shown in FIG. 3, the surface plate 2 of the display device 1 has "2" on the surface of a transparent plastic plate.
Three divided bodies 2 depicting necessary numbers such as "3" and "4"
a, 2b, and 2c.
a, 2b, 2c to slide grooves 1e,
For example, a numeral "234" is displayed by sliding and inserting between 2e, and "534" is obtained by replacing a part of the divided body.
It can be changed to a numerical value such as “134”.

The numbered portions of these divided bodies 2a, 2b and 2c are formed, for example, by a bright orange fluorescent color printing layer 3a. , The light source 5
Are transmitted through the fluorescent color printing layer 3a but not through the light-shielding printing layer 3b, so that the numbers "2", "3", and "4" drawn on each of the divided bodies 2a, 2b, and 2c are clearly shown. It is visible.

The light source 5 is provided on three substrates 5b corresponding to the divided bodies 2a, 2b, 2c constituting the display panel.
.. Are arranged in a matrix of 30 dots each having high brightness LEDs 5a, 5a,... At equal intervals in the vertical and horizontal directions so as to correspond to all the numeral patterns. It is possible to change the price without having to change the price.

In this embodiment, the blinking ratio between the actual lighting and the extinguishing by the operation of the intermittent lighting circuit 6 is reduced to 1/3.
2. The blinking interval is set to 0.5 seconds, and the blinking of the light source 5 under such conditions apparently causes the same cycle of lighting and extinguishing due to the illusion of human beings and afterimages, that is, blinking at or near 1/1. The ratio is visually recognized.

A filter 4 is provided between the light source 5 and the display panel 2 as shown in FIG. 1 or FIG. By doing so, the light from the light source is irregularly reflected and L
The light emitting characteristics of the ED are improved, and the light source 5 provided inside is prevented from being seen through from the outside.

The timer circuit 7 automatically operates at a predetermined time in the evening or night according to the setting of a built-in clock, and turns off when a set lighting time, for example, a range of 1 to 15 hours elapses. This is repeated automatically every day unless the conditions of these settings are changed.

The display device 1 includes a battery 9 mounted on a vehicle.
In the daytime when the timer circuit 7 does not operate, the power supply cable 8 of the fluorescent color printing layer 3a of the surface plate 2 in the bright orange color is "2".
Numerals such as "3" and "4" are clearly displayed with strong contrast with the light-shielding printing layer 3b as a background, and can be easily read.

On the other hand, at a predetermined time in the evening or at night, the timer circuit 7 operates and the intermittent lighting circuit 6 causes a number of LEDs 5a, 5a. The flashing light is applied to the numerals formed of the fluorescent printed layer 3a of the front plate 2 through the light diffusing plate 4 so that each numeral is clearly displayed on the front surface of the front plate 2.

This display device 1 uses 90 LEDs and blinks for 6 hours per day. Even if this is performed for one month, 5% of the capacity of the dischargeable battery mounted on the vehicle is used.
Only a small amount of power was consumed, and the maximum effect was achieved with extremely low power consumption. Therefore, the battery was extremely easy to manage because there was no need to run and charge the engine once.

In the above embodiment, the display formed on the display panel is a numeral, but it is obvious that the display may be a specific figure, pattern, or symbol.

FIG. 4 shows another embodiment of the display device according to the present invention. The display device 21 is formed by punching a required portion of an opaque plate 22 to form a display portion 23 or by forming a transparent portion. A portion other than a required portion of the plastic plate is coated with black light-shielding paint to shield light, and a portion to which no light-shielding paint is applied is used as a display portion.

Since the display section 23 of the display panel 22 is colorless in any case, a bright orange fluorescent paint is provided between the display panel 22 and the light source 27, for example, over the entire surface. A transparent plastic plate body 24 having a layer 25 formed thereon and a rear surface provided with a concave-convex surface 26 by a diamond cutting process.
, And the light from the light source 27 is projected to the outside only from the display unit 23 through the plate body 24 so that the display unit 23 can be visually recognized remarkably.
The other parts have the same structure as the embodiment shown in FIGS.

[0036]

According to the display device of the present invention, the display portion is coated with a fluorescent paint and the other portions are shielded from light, or the display portion of the display plate is made light transmissive. Since the light source arranged on the rear side is intermittently illuminated with intermittent lighting by illuminating the display unit with intermittent lighting by illuminating the display unit with intermittent lighting, the daytime part is arranged through the transparent plate body coated with the fluorescent paint interposed between them. Needless to say, even at night, the display device can be operated in a very high visibility state with low power consumption and the advertising effect can be enhanced.

In particular, according to the display device of the present invention, the light source is a blinking light by intermittent lighting, and a substantial blinking ratio indicating a time ratio of lighting / (lighting + extinguishing) of the intermittent lighting is set to be a low ratio. By using an optical illusion and an afterimage caused by blinking to make an apparent blinking ratio of 1/1 or close to it, effective advertising can be performed with extremely low power consumption, and a compact and simple structure is used, and it is inexpensive. Can be provided.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a basic configuration of a display device of the present invention.

FIG. 2 is a partially cutaway sectional view showing an example of the display device of the present invention.

FIG. 3 is a partially cutaway front view showing an example of a display panel constituting the display device of the present invention.

FIG. 4 is a partially cutaway sectional view showing another example of the display device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Surface plate 3a Fluorescent color printing layer 3b Light shielding printing layer 4 Filter 5 Light source 5a Light emitting diode 6 Intermittent lighting circuit 7 Timer circuit 8 Cable 9 Battery

Claims (11)

[Claims] 1. A display panel having a display section formed at a required portion, and a light source disposed behind the display panel and capable of displaying light by intermittent lighting at a low ratio only through the display section of the display panel. A display device comprising: 2. The display panel according to claim 1, wherein a predetermined portion of the light-transmitting plate is coated with a fluorescent paint having a light-transmitting property to form a display portion. The display device according to claim 1, wherein the entirety of the display device is made opaque by a light-shielding paint. 3. The display panel shields a portion of the plate-like body other than the display unit from light, and makes the display unit light-transmissive by a through-hole or a transparent portion. The display device according to claim 1, wherein the display unit is configured to display the display unit through a translucent plate body coated with a fluorescent paint interposed therebetween. 4. The method according to claim 1, wherein the light-transmitting plate-shaped body is made of glass, transparent plastic, or transparent plastic whose rear surface is diamond-cut and roughened. The display device according to any one of the above. 5. The display device according to claim 1, wherein the display section is formed by a graphic, a symbol, a numeral, or a combination thereof. 6. The display device according to claim 1, wherein the display plate is composed of a plurality of plate-like bodies each having a display portion formed at a required portion. 7. The display device according to claim 1, wherein the light source is constituted by a plurality of ultra-bright light emitting diodes. 8. The light source according to claim 1, wherein a substantial blinking ratio is 1 /.
The display device according to claim 1, wherein the display device has a blinking interval in a range of 0.3 second to 5 seconds in a range of 10 to 1/1000. 9. The light source is powered by a battery mounted on a vehicle and controlled by a low-ratio intermittent lighting circuit and a timer circuit for starting / stopping operation at regular intervals. The display device according to 1. 10. A filter between the display plate and the light source, the filter having a rough surface formed by diamond cutting the entire surface on one side of the transparent acrylic resin plate, intermittently reflecting light from the light source to diffuse light. The display device according to claim 1, wherein the display device is configured to perform the following operations. 11. The display device according to claim 1, wherein the light source is movably provided so that a distance between the light source and the display plate can be adjusted in several steps.