JP2002116721A - Light emitting display body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a display body using a light accumulating material emit light in a dark place whenever it is necessary. SOLUTION: A light accumulating material layer 2 is formed on a surface of a planar heat generating body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a light emitting display,
In particular, the present invention relates to a light emitting display using a phosphorescent material.

[0002]

2. Description of the Related Art As a light emitting display using a phosphorescent material, for example, a guide to an emergency exit is known. This is a drawing of a guide pattern or the like with a luminous pigment on a sheet-like body. This luminous pigment absorbs light energy during bright daytime hours or nighttime illumination, luminesces, and turns off at nighttime. Emits light energy, that is, emits light. Thus, even if a fire or the like occurs when the lights are turned off at night, it is possible to guide the person toward an emergency exit or the like.

[0003]

However, the phosphorescent pigment is
In general, the light emission persistence is low. For example, even if light emission is continued for several hours after turning off at night, substantial light emission cannot be performed thereafter. That is, if the light is turned off in the middle of the night, even if the light is emitted during the period from midnight to midnight, it cannot be said that the light is emitted during the period from midnight to dawn. Further, light is emitted only after the light receiving state has been maintained for a certain period of time or more, and it is not possible to emit light rapidly when necessary.

[0004] Therefore, an object of the present invention is to solve such a problem and to enable a display using a phosphorescent material to emit light whenever necessary in a dark place.

[0005]

In order to achieve this object, the present invention provides a planar heating element having a phosphorescent material layer formed on the surface thereof.

That is, although the phosphorescent material generally does not have extreme heat resistance, it has recently been used at a high temperature of about 700 ° C., such as a phosphorescent material called “Leavelight (trade name)” manufactured by Reed. Luminescent materials that can withstand the heat have been developed. This luminous material contains a Sr-Al-O-based compound as a main component, and has a characteristic that, in addition to emitting light based on a normal luminous action, it also emits light when heat energy is supplied.

The present invention has been made with a focus on a phosphorescent material having such heat resistance and emitting light by supplying thermal energy, and a phosphorescent material layer is formed on the surface of a sheet heating element. When light emission is required, the phosphorescent material is caused to emit light by forcibly generating heat from the sheet heating element.

[0008] This makes it possible to cause the phosphorescent material to emit light whenever necessary and rapidly.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 denotes a planar heating element constituting a display panel, which generates heat when supplied with electric energy. On the surface of the sheet heating element 1,
The luminous material layer 2 is formed of a paint using a luminous material that has heat resistance and emits light when receiving heat as a pigment.
In the illustrated example, the luminous material layer 2 displays an arrow-shaped guidance symbol.

Reference numeral 3 denotes a smoke / heat sensor as a fire detection device provided indoors, which is connected to the sheet heating element 1. In other words, when the occurrence of a fire is detected by the smoke / heat sensor 3, electricity is supplied to the sheet heating element 1 and the sheet heating element 1 generates heat.
The induction symbol is heated and emits light.

Therefore, even when a fire occurs at night, appropriate guidance can be provided. In addition, since the luminous material layer 2 emits light by energizing the planar heating element 1 to generate heat, the luminous material layer 2 can be rapidly emitted at any time of emergency, such as when a fire occurs, and rapidly due to the heating of the planar heating element 1. Can emit light.

In the system shown in FIG.
When the occurrence of a fire is detected in the above, in addition to the fact that the phosphorescent material layer 2 can emit light by the heat generation of the planar heating element 1 as described above, the signal line 4 from the sensor 3
An alarm device and a sprinkler (not shown) can be operated.

The sheet heating element 1 may generate heat by other means, in addition to the heat generated by the electric heating as described above. For example, it may use heat generated by a chemical reaction of a substance such as slaked lime or iron oxide. Also, as the means for activating the heating element as a heat source, an appropriate means can be used instead of the smoke / heat detection sensor 3 described above.

FIG. 2 shows a light emitting display according to another embodiment of the present invention. Here, reference numeral 6 denotes a motorbike, which has a muffler cover 7 on its side. In the present invention, the heat storage material layer 2 having heat resistance is formed on the surface of the muffler cover 7 by painting or the like.

With such a configuration, the muffler cover 7 is heated by the exhaust gas from the engine and functions as a planar heating element. Therefore, during operation of the motorbike 6, the muffler cover 7 emits light due to the luminous material layer 2.

The reason for causing the muffler cover 7 to emit light is as follows. That is, generally, a motorcycle is provided with indicator lights such as a headlight and a taillight at a front portion and a rear portion thereof, and can notify an opposing vehicle or a following vehicle of the existence of the motorcycle. However, there is no such indicator light on the side of the motorbike, and it has a structure that makes it difficult for other vehicles approaching from the side to know the presence. Therefore, by illuminating the muffler cover 7 provided on the side of the motorbike 6 as described above, it is possible to notify other vehicles approaching from the side, especially at night, of the existence of the muffler cover. It can contribute to improvement.

FIG. 3 shows a light emitting display according to still another embodiment of the present invention. Here, reference numeral 9 denotes a parking lot, on which a line 11 for displaying a parking space of each automobile 10 is drawn. The parking lot 9 shown in FIG. 3 is constructed in a snowy country, and has a snow melting structure in which a hot water pipe is buried underground. In this case, the road surface 12 of the parking lot 9 becomes a planar heating element, and the line 11 is drawn with a paint using a heat-storing luminous material as a pigment. It emits light when it receives heat. Therefore, the parking space of each automobile 10 can be clearly displayed at night.

Next, still another embodiment of the present invention will be described. That is, since the light-storing material layer has a function of displaying a high temperature, if a light-storing material layer having heat resistance is formed on a top plate of a stove or an oven, for example, according to the present invention, light is emitted at the time of its operation, that is, at a high temperature. Can alert you.

[0019]

As described above, according to the present invention, since the phosphorescent material layer is formed on the surface of the sheet heating element, when light emission is required, the sheet heating element is forcibly heated. This allows the phosphorescent material to emit light, and thus allows the phosphorescent material to emit light whenever needed and quickly.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an example of use of a light emitting display according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of use of a light emitting display according to another embodiment of the present invention.

FIG. 3 is a diagram showing an example of use of a light emitting display according to still another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 sheet heating element 2 phosphorescent material layer 3 smoke / heat sensor

Claims (1)

[Claims] 1. A light-emitting display, wherein a light-storing material layer is formed on a surface of a planar heating element.