JP2008158057A - Light-emitting display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent losing functions, even if the peripheral components of a battery go out of order by substantially extending the light emission time of a guide lamp during power failure. <P>SOLUTION: A lighting body 2 is disposed nearby the back of a light accumulating display member 1 where characters, symbols, patterns, and the like are drawn and which has light accumulation properties, and the display member 1 is irradiated to accumulate light, when the lighting body 2 illuminates and is made to emit phosphorescent light, when the lighting body 2 does not emit the light. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a light-emitting display device applicable to a guide lamp or the like.

Under the Fire Service Law, commercial facilities, accommodation facilities, etc. are obliged to install emergency exits and guide lights that display evacuation paths. Guide lights are required to remain lit even if a power outage occurs due to a disaster. Therefore, it is common that a power circuit containing a battery is attached to satisfy the request (for example, refer to the following patent document). reference).
JP 2006-286339 A

  Existing guide lights continue to illuminate for several tens of minutes to an hour after a power failure, but if the lighting time is extended beyond that, the capacity of the battery is inevitably increased, resulting in an increase in cost.

  In addition, there is no possibility of a failure around the battery. If this happens, it will not light up at the time of a power outage and cannot be used for guiding evacuees.

  An object of the present invention made in view of the above is to effectively extend the light emission time with a simple configuration so that the function is not lost even if a failure occurs around the battery.

  In order to solve the above-described problems, the present invention provides a light-emitting display device including a display member having a luminous property in which characters, symbols, designs, and the like are drawn, and an illuminating body arranged close to the back of the display member. Configured. If it is such, it is possible to make it accumulate | store light, illuminating the said display member at the time of the light emission of the said illumination body, and to light-emit a display member at the time of the non-light emission of an illumination body. As a result, the light emission time at the time of a power failure is effectively extended, and the light emission function can be implemented regardless of the storage of the battery, so that the function is ensured even if a failure occurs around the battery.

  In order to illuminate substantially the entire area of the display member evenly, it is desirable that the illuminator emits light.

  If the illuminating body has a thin plate shape and is substantially superposed on the display member, it is effective in reducing the thickness of the entire apparatus.

  If the display member and the illuminating body are held by a holding body and at least one of the display member and the illuminating body is detachable, the illuminating body can be replaced when the life of the illuminating body comes to an end. Or display contents, such as a character, a symbol, and a design, can be changed arbitrarily through exchange of a display member.

  If the holding body has a frame shape and holds both the display member and the peripheral part of the illuminating body, it is possible to avoid an increase in the thickness of the device due to the holding body, and the wall surface, floor surface or ceiling surface of the building structure. Suitable for installation in the vicinity.

  As an example of a thin illuminating body, EL (ElectroLuminescence) can be cited.

  According to the present invention, the light emission time during a power failure of the display device can be effectively extended with a simple configuration, and the function as the display device is ensured even if a failure occurs around the battery.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. This light-emitting display device is used as, for example, a guide light for displaying an emergency exit or an escape passage, and has display contents 11 such as characters, symbols, designs, etc. (in the illustrated example, the direction and direction of emergency exit characters and marks) A display member 1 on which an arrow) is drawn, and an illuminating body 2 disposed in proximity to the back of the display member 1.

  Specifically, as shown in FIGS. 1 to 3, a thin plate-shaped display member 1 and a thin plate-shaped illuminating body 2 are stacked in front and back substantially in parallel with each other, and these are integrated by a holding body 6. It is held. A colorless and transparent protective plate 3 made of, for example, vinyl chloride is provided in front of the display member 1, and an intermediate plate 4 made of, for example, acrylic having translucency is provided between the display member 1 and the illumination body 2. A back plate 5 made of, for example, vinyl chloride is disposed on the rear side. The protective plate 3, the intermediate plate 4 and the back plate 5 are also held by the holding body 6.

  The display member 1 is manufactured by sticking a marking film of the display content 11 on the front surface of a phosphorescent plate having a phosphorescent property or screen-printing the display content 11. Alternatively, a reverse image of the display content 11 is printed on a base on which a water-soluble material such as dextrin is laid, and an adhesive is applied thereon to lay and bond the granular phosphorescent material in a thin plate shape, and then the base It is also possible to employ a production method in which the water-soluble material is melted in water to melt the water-soluble material and peel off the phosphorescent material layer together with the printed layer.

  The illuminator 2 is an EL, particularly an inorganic EL. The illuminator 2 emits light from the front surface facing the display member 1. A power circuit (not shown) is connected to the illuminator 2 via a power cord 21. The power supply circuit includes an inverter, a battery, and the like, and normally receives power from an external outlet and lights or blinks the illuminating body 2. When a power failure occurs, lighting or flashing of the illuminating body 2 is maintained with power charged in the battery. However, the battery is not an essential element. This is because, if the display member 1 stores light, the display member 1 can emit phosphorescence even if a power failure occurs and the illuminator 2 is turned off.

  The holding body 6 is, for example, a metal molded product made of aluminum. In the present embodiment, the protective plate 3, the display member 1, the intermediate plate 4, the illuminating body 2 and the back plate 5 have substantially the same shape as viewed from the front, and the holding body 6 also has these members 1, 2, 3, 4, A frame shape substantially corresponding to the peripheral shape of 5 is formed. A concave groove 61 is formed on the inner peripheral side of the holding body 6, and the peripheral portion thereof is inserted into the concave groove 61 in a state where the five members 1, 2, 3, 4, and 5 are closely polymerized. And keep it. Each member 1, 2, 3, 4, 5 can be inserted into and removed from the concave groove 61 of the holding body 6. A wiring port 62 for wiring the power cord 21 is provided at a predetermined location of the holding body 6.

  In normal times, the illuminator 2 is turned on or blinked to illuminate the display member 1 from behind, and the display member 1 is made to accumulate light. When the illuminator 2 is turned off during a power failure, the stored display member 1 itself emits light. If the illuminator 2 is lit for several minutes to ten and several minutes, the display member 1 can continue to emit phosphorescence for about ten hours.

  According to the present embodiment, a light-emitting display device is provided that includes a luminous member display member 1 on which characters, symbols, designs, and the like 11 are drawn, and an illuminating body 2 that is arranged close to the back of the display member 1. Therefore, it is possible to store the display member 1 while illuminating the illuminating body 2 while storing the light, and to cause the display member 1 to emit light when the illuminating body 2 is not emitting light. As a result, the light emission time at the time of a power failure is effectively extended, and the light emission function can be implemented regardless of the storage of the battery, so that the function is ensured even if a failure occurs around the battery.

  Since the illuminating body 2 emits surface light, it is possible to uniformly illuminate substantially the entire area of the display member 1 and to uniformly illuminate substantially the entire area of the display member 1. As a result, the display contents 11 can be easily and sufficiently visually recognized through a normal power outage.

  Since the illuminating body 2 has a thin plate shape and is substantially superposed on the display member 1, it is effective in reducing the thickness of the entire apparatus.

  Since the display member 1 and the illuminating body 2 are held by the holding body 6 and the display member 1 and the illuminating body 2 are detachable, the illuminating body 2 is used when the life of the illuminating body 2 comes to an end. Can be exchanged. In addition, the display contents 11 such as characters, symbols, designs, etc. can be arbitrarily changed through replacement of the display member 1.

  Since the holding body 6 has a frame shape and holds both the display member 1 and the peripheral edge of the illuminating body 2, it is possible to avoid an increase in the thickness of the apparatus due to the holding body 6. Or, it is suitable for installation near the ceiling surface.

  Since EL is used as the illuminating body 2, it is easy to reduce the thickness and is suitable for surface light emission.

  The present invention is not limited to the embodiment described in detail above. In the said embodiment, although the light emission display apparatus, the display member, and the illumination body became a thin plate body of the front view substantially square shape, it does not prevent making it another shape.

  The shape of the holding body is not limited to that in the above embodiment. The holding body holds only a part of the peripheral portion of the display member and the illuminating body, in other words, does not need to surround the entire peripheral portion.

  In the above embodiment, the power supply circuit is placed outside the holding body, but the power supply circuit may be mounted inside the holding body.

  In the above embodiment, the display member and the illuminating body are separate members. However, a light emitting display device in which the display member is fixed to and integrated with the illuminating body may be configured.

  The illumination body is not limited to inorganic EL or organic EL. It is also conceivable to employ various known illumination bodies (typically a combination of a light source and a thin light guide plate) that are mounted on a display such as a notebook computer or a mobile phone terminal.

  Needless to say, the use of the light emitting display device according to the present invention is not limited to guide lights.

  Other specific configurations of the respective parts are not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

1 is a perspective view illustrating a light emitting display device according to an embodiment of the present invention. The disassembled perspective view of the light-emitting display device. The sectional side view of the light-emitting display device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Display member 11 ... Character, symbol, design, etc. 2 ... Illuminating body 6 ... Holding body

Claims (6)

A display member having a luminous property in which characters, symbols, designs, etc. are drawn;
An illuminating body arranged close to the back of the display member,
A light-emitting display device configured to store light while illuminating the display member when the illuminator emits light, and to cause the display member to emit light when the illuminator does not emit light. The light-emitting display device according to claim 1, wherein the illuminator emits surface light. The light emitting display device according to claim 1, wherein the illuminating body has a thin plate shape and is substantially superposed on the display member. The light emitting display device according to claim 1, wherein the display member and the illuminating body are held by a holding body, and at least one of the display member and the illuminating body is detachable. The light emitting display device according to claim 4, wherein the holding body has a frame shape and holds both the display member and a peripheral portion of the lighting body. The light-emitting display device according to claim 1, wherein the illuminating body is an EL (ElectroLuminescence).

Images