JP6186664B1 - Phosphorescent display device - Google Patents

Abstract

[PROBLEMS] To easily illuminate a phosphorescent material directly by irradiating light from an LED even at sunset with a simple configuration, and to improve the phosphorescence effect of the phosphorescent plate stably and sufficiently regardless of day or night. Provided is a phosphorescent display device capable of obtaining a visible state. A plate-like substrate having a predetermined design disposed on the front surface side, a phosphorescent material disposed corresponding to the shape of the design on the back side of the substrate, and a substrate covering the phosphorescent material A phosphorescent plate disposed on the front surface of the housing having a coating material disposed on the back side of the LED, and an LED light emitter disposed on the rear surface of the housing and capable of directly irradiating the phosphorescent material with ultraviolet rays, And a control unit capable of turning on the LED light emitter for a predetermined time set in advance when shifting from daytime to nighttime. The control means causes the LED light emitter to emit light when the light sensor is activated within a set time by a timer, and turns off the LED light emitter when the timer set time has elapsed. [Selection] Figure 1

Description

  The present invention relates to a phosphorescent display device mainly used as an evacuation guidance sign (evacuation guidance display board), a guidance sign (guidance display board), or a signboard of a store.

  Conventionally, patent document 1 is disclosed as an illuminating device using a luminous material, for example. This lighting device includes a rectangular parallelepiped housing, an LED as a light emitter that is disposed on the inner side surface of the housing and emits point light based on predetermined power, and a phosphorescent plate disposed on the front surface of the housing. A reflector disposed on the back side of the housing and irradiating the phosphorescent plate with light emitted from the LED; and disposed between the LED and the side surface of the phosphorescent plate inside the housing and emitted from the LED. A light shielding plate for shielding the light. Then, the light emitted from the LED is reflected by the reflecting plate and applied to the phosphorescent plate, thereby causing the phosphorescent material to accumulate.

Japanese Patent Laying-Open No. 2015-46291

  However, in such an illuminating device, the light of the LED disposed on the left inner surface of the housing is irradiated in a direction substantially parallel to the phosphorescent plate that is the right side surface direction, and is narrow toward the irradiation direction. In order to reflect the reflected light to the phosphorescent plate and irradiate the phosphorescent plate with the reflected light, for example, the phosphorescent material located on the left side of the housing and the phosphorescent material located on the right side of the housing are irradiated. The amount of reflected light may vary, and variations in light storage of the phosphorescent material in the left-right direction of the housing are likely to occur.

  In particular, when applied to a phosphorescent plate (Japanese Patent Laid-Open No. 2015-111239) by the applicant of the present application that obtains sufficient phosphorescent luminance for a long time while reducing the amount of phosphorescent material used, the cross-sectional chevron of the base material Since the thickness of the phosphorescent material is not uniform because it is filled in the concave portion of the shape, it is difficult to make the phosphorescent material emit light uniformly in the above configuration of the lighting device, and it is difficult to make the phosphorescent material a light source during daytime to nighttime transition etc. It is difficult to ensure a sufficient luminous effect. This tends to be remarkable when the area of the phosphorescent plate is large. Moreover, in the case of the said illuminating device, in order to irradiate the phosphorescent material with the light of LED, a reflecting plate, a light-shielding plate, etc. are needed, and the structure of illuminating device itself becomes complicated, and it is not preferable because it becomes high-cost.

  The present invention has been made in view of such circumstances, and the object thereof is to easily irradiate the phosphorescent material directly by irradiating the light of the LED even at sunset with a simple configuration. It is an object of the present invention to provide a phosphorescent display device that can stably and sufficiently enhance the phosphorescent effect of the phosphorescent plate and obtain a good visual recognition state. In addition to the above object, another object is to provide a phosphorescent display device capable of evenly emitting the entire region of the phosphorescent material even when the phosphorescent material is a phosphorescent plate filled in the concave portion of the substrate.

  In order to achieve this object, the invention described in claim 1 of the present invention corresponds to a plate-like base material in which a predetermined design is arranged on the front surface side, and the shape of the design on the back surface side of the base material. A phosphorescent material disposed on the front surface of the housing, the phosphorescent material disposed on the back surface side of the base material so as to cover the phosphorescent material, and the housing An LED illuminator disposed on the back of the body and capable of directly irradiating the phosphorescent material with ultraviolet rays, and a control means capable of lighting the LED illuminant for a predetermined time set when shifting from daytime to nighttime. And

According to a second aspect of the present invention, the control means causes the LED light emitter to emit light when the optical sensor detects ambient brightness within a set time of the timer and operates at a predetermined darkness. The LED light emitter is turned off when the set time of the timer has elapsed. According to a third aspect of the present invention, the phosphorescent material is filled and solidified in a recess formed in a cross-sectional chevron shape at a predetermined depth on the back surface of the base material corresponding to the design of the base material surface. It is characterized by being. Furthermore, in the invention according to claim 4, the LED light emitter is formed of a plurality of LED modules having a plurality of LEDs capable of irradiating ultraviolet rays, or a plurality of wide-angle LEDs capable of irradiating ultraviolet rays at a wide angle. It is formed, and these are arrange | positioned corresponding to the said design on the LED attachment plate which serves as the back plate of the said housing | casing.

According to a fifth aspect of the present invention, the control means causes the LED luminous body to emit light using electric power of a commercial AC power supply, or causes the LED luminous body to emit light using electric power of a solar panel. It is characterized by that. According to a sixth aspect of the present invention, the timer and the optical sensor are disposed in a control box, and the display panel having the casing in which the phosphorescent plate and the LED light emitter are disposed are connected via a cable. It is connected.

  According to the invention described in claim 1 of the present invention, a phosphorescent material is disposed on the back surface side of the plate-like base material corresponding to the shape of the design on the front surface side, and the phosphorescent material is covered with a covering material. A phosphorescent plate placed on the front of the housing, an LED emitter that is placed on the back of the housing and can directly irradiate the phosphorescent material with ultraviolet light, and an LED when the light sensor is activated within the time set by the timer Since it has a control means capable of turning on the light emitter, a simple configuration in which the phosphorescent material and the LED light emitter are opposed to each other in the front and rear in the housing, the transition from daytime to nighttime when sunlight irradiation cannot be sufficiently obtained ( Even in the evening, it is possible to directly irradiate the luminous material of the LED light to the luminous material of the base material to compensate for the decrease in ultraviolet rays irradiated to the luminous material at sunset. Can be stably and sufficiently enhanced.

Further, according to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the control means detects the ambient brightness within a set time of the timer, and the predetermined darkness is detected by the light sensor. The LED illuminator emits light when the timer is activated, and the LED illuminant is turned off when the set time of the timer elapses. For example, the LED illuminant can be lit for 2 to 3 hours in the evening. A reduction in the visual effect of the phosphorescent plate can be suppressed, a more stable phosphorescent effect can be obtained, and power saving of the device can be achieved.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the phosphorescent material is formed in a cross-sectional chevron shape on the back surface of the base material corresponding to the design of the base material surface. Since it is filled and solidified in the concave portion, it is only necessary to fill the phosphorescent material only into the concave portion corresponding to the design part, and the amount of use can be reduced, and phosphorescence emitted from the phosphorescent material can be adjacent. It is possible to make the design portion visible from the surface side by further enhancing the phosphorescent effect, such as being able to radiate to the surface side of the base material while being irregularly reflected by the chevron portion of the concave portion.

  According to the invention described in claim 4, in addition to the effects of the invention described in claims 1 to 3, the LED light emitter is formed of a plurality of LED modules having a plurality of LEDs or a plurality of wide-angle LEDs. Since these are arranged on the LED mounting plate that also serves as the back plate of the housing corresponding to the design, the number of LED modules and wide-angle LEDs can be effectively reduced to further simplify the device. While aiming, the luminous effect of each design can be further enhanced.

  Further, according to the invention described in claim 5, in addition to the effects of the invention described in claims 1 to 4, the control means causes the LED luminous body to emit light using the power of the commercial AC power supply, or the housing. Since the LED emitter is emitted using the power of the solar panel placed on the body, the LED emitter can be lit stably and reliably by using a commercial power supply. By using it, further energy saving of the device can be achieved.

According to the invention described in claim 6, in addition to the effects of the invention described in claims 2-5, the timer and the light sensor are disposed in the control box, and the phosphorescent plate and the LED light emitter are disposed. Since it is connected via a cable to a display panel having a housing that can be mounted, a separate display panel and a control box can be attached to a predetermined position such as outdoors, and the versatility of installation can be improved. Equipment maintenance and inspection can be performed easily.

The perspective view which shows one Embodiment of the phosphorescent display apparatus concerning this invention Front view of the display panel Explanatory drawing showing the inside of the display panel Sectional view along the AA line of FIG. Sectional drawing along the BB line of FIG. (A) which shows the frame connection member is a front view, (b) is a side view thereof, and (c) is a bottom view. (A) which shows the back surface of the phosphorescent plate, (a) is a main part rear view, (b) is a longitudinal sectional view thereof. Block diagram of the phosphorescent display device Timing chart showing the operation The block diagram which shows other embodiment of the luminous storage display apparatus concerning this invention

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the phosphorescent display device 1 has a display panel 2 and a control box 3. The display panel 2 has a thin rectangular parallelepiped housing 5, and a phosphorescent plate 6 provided with a design 15 indicating the direction and distance of the tsunami evacuation facility is disposed on the front surface of the housing 5. An LED mounting plate 7 (see FIG. 3), which will be described later, is disposed on the rear surface of the housing 5.

  The control box 3 has a waterproof structure formed of plastic or the like, and a timer 8 in which, for example, a start button or the like is exposed on the front surface of the control box 3 is disposed. An optical sensor 9 is disposed on the side of the box 3 with its sensor portion exposed. The control means of the present invention is formed by the timer 8 and the optical sensor 9 of the control box 3. The timer 8 can be set to an on time (time) and an off time (time) by a 24-hour timer, and the light sensor 9 detects ambient light and detects a predetermined brightness (daytime). ) Is turned off at other times, and it is turned on at other times (nighttime).

  2 to 5, the display panel 2 has an upper frame 5a, a lower frame 5b, and left and right side frames 5c, and the four corners of the frames 5a to 5c are frame-connected. The members 5d are connected to each other. At this time, as shown in FIGS. 4 and 5, each of the frames 5 a to 5 c is formed of an aluminum material into a substantially cylindrical shape having a hollow section 10 with a flat cross section, and the front and rear ends on the inner side (opposite side). Grooves 11a and 11b projecting inward are integrally formed in the portion along the longitudinal direction. A drainage hole 12 (see FIG. 5) is formed at a predetermined position of the lower frame 5b for draining downward when rainwater or the like enters the display panel 2.

  Of the pair of front and rear grooves 11a and 11b, the outer peripheral end of the phosphorescent plate 6 is detachably inserted and locked in the front-side groove 11a, and the back-side groove 11b also serves as the back plate of the housing 5. The outer peripheral end of the LED mounting plate 7 is detachably inserted and locked. Further, the frame connecting member 5d is fitted in the hollow portions 10 at the four corners which are the connecting portions of the frames 5a to 5c. As shown in FIG. 6, the frame connecting member 5d is made of an aluminum material and has a corner portion 5d1 having a substantially square shape when viewed from the front, and a pair of fitting portions integrally formed in a protruding state on adjacent side surfaces of the corner portion 5d1. 5d2 respectively.

  Two fitting ribs 5d3 having a height corresponding to the width of the hollow portion 10 are integrally formed in each fitting portion 5d2 of the frame connecting member 5d, and a fixing hole 13 is formed between the ribs 5d3. ing. Then, the fitting part 5d2 is fitted into the hollow part 10 of the frames 5a to 5c to be connected, and the wood screws are inserted from the fixing holes of the frames 5a to 5c provided corresponding to the fixing holes 13 of the fitting part 5d2. By screwing into the fixing hole 13 of the fitting portion 5d2, the pair of frames 5a to 5c are connected to each other so as to be disassembled by the frame connecting member 5d.

  At this time, the rib 5d3 of the fitting portion 5d2 is fitted to the hollow portion 10 of each of the frames 5a to 5c with a predetermined strength, so that the four frames 5a to 5c are connected to the four frame connecting members 5d. The casing 5 is formed. In the housing 5, two upper and left frame connecting members 5d of the upper frame 5a and the left and right side frames 5c are fixed by fixing screws 14 with a knob (see FIG. 1). By removing, the upper frame 5a with the frame connecting member 5d fixed to the left and right can be removed (pulled out) from the upper part of the left and right side frames 5c. In this state, the phosphorescent plate 6 and the LED mounting plate 7 can be detached from the housing 5.

  The phosphorescent plate 6 is configured as shown in FIGS. 2, 4 and 7. That is, the phosphorescent plate 6 has a base 6a having a predetermined thickness (for example, about 5 mm) made of a transparent acrylic plate formed in a rectangular shape. And in this base material 6a, the design film 15 in which the design was formed is arrange | positioned by the surface (front surface of the display panel 2) side, and the back surface of the base material 6a corresponding to the design of this design film 15 A plurality of recesses 16 are formed in a continuous state.

  Each concave portion 16 provided in the base material 6a is filled with a phosphorescent material 17, and a film 18 as a covering material is pasted (attached) to the back surface of the phosphorescent material 17, that is, the back surface side of the base material 6a. Wearing). In addition, as shown in FIG. 7, each said recessed part 16 is formed so that the center part may become the deepest position in the square of the one side t corresponding to the character width of the designs 15b and 15d etc. which are mentioned later, for example. And four ridge lines from the four corners of the square toward the deepest part, and four slopes 16a, and the vertical cross section at the deepest part of each recess 16 has a mountain shape (triangular) shape. It has become.

  The design film 15 is formed of, for example, an outdoor inkjet print film, and as shown in FIGS. 1 and 2, a design 15a indicating a tsunami, a person and a building, a design 15b indicating a facility name (tsunami evacuation facility), and a facility The design 15c of the arrow which shows the direction and the design 15d of the distance to a facility are formed by printing. At this time, each of the designs 15a to 15d is different in color from the design portion 19a with a transparent or light yellow translucent design portion 19a and a predetermined width and a predetermined shape formed so as to surround the outer peripheral edge of the design portion 19a. For example, it is formed with a green edge 19b. A cover film 20 (see FIG. 4) made of, for example, an outdoor PVC adhesive film that protects the design film 15 is affixed to the surface of the base material 6a that is the surface of the design film 15.

  And corresponding to each design 15a-15d of this design film 15, the said luminous material 17 is filled and solidified in the said recessed part 16 of the back surface of the said base material 6a. The phosphorescent material 17 is a mixture of a phosphorescent pigment having a predetermined particle diameter and a resin such as an epoxy resin, a urethane resin, and an EVA resin while being bathed in water, and this is filled in the recess 16 and, for example, naturally dried. It is disposed in the recess 16 in a solidified state. The film 18 made of, for example, an outdoor PVC adhesive film is attached to the back side of the phosphorescent material 17 and the substrate 6a. The design film 15, the cover film 20 and the film 18 transmit ultraviolet light or transmit part of the ultraviolet light.

  The LED mounting plate 7 is formed of a resin plate, a metal plate, or the like having the same shape as the base material 6a of the phosphorescent plate 6, and as shown in FIG. 3, two sets of LED modules 22 are arranged at predetermined positions on the back surface serving as the inner surface. Is attached. Each LED module 22 is provided with, for example, three AC specification LEDs 22a capable of emitting ultraviolet rays at a predetermined directivity angle, and is fixed to the LED mounting plate 12 with an adhesive or the like.

  Each LED module 22 is connected in parallel (or connected in series) as shown in the block diagram of FIG. 8, and a cord lead provided on the LED mounting plate 7 shown in FIG. The hole 23 is pulled out of the housing 5. The cable 21 is connected to the AC optical sensor 9 provided in the control box 3, and the optical sensor 9 is connected in series with the AC timer 8, and the power cable 24 is connected to the input side of the timer 8. Has been.

  Thereby, AC100 power is supplied to the LED module 22 via the timer 8 and the optical sensor 9 of the control box 3, and each LED 22a is lit (emitted) at a predetermined timing. At this time, each LED 22a is lit as shown in FIG. That is, when the light sensor 9 is turned on at 16:30 (16:30) in a state where the timer 8 is set to be turned on at 16:00 (16:00) and turned off at 19:00 (19:00), for example. The AC 100V power is supplied to each LED 22a via the timer 8 and the light sensor 9, and lights up.

  That is, the LED 22a is lit from 16:30 to 19:00, and when the LED 22a is lit, the ultraviolet light emitted from each LED 22a passes through the film 18 of the phosphorescent plate 6 located in front and fills the recess 16 The design 15a to 15d corresponding to the concave portion 16 is visually recognized from the front side of the display panel 2 by being irradiated and stored in the stored phosphorescent material 17.

  Next, the operation of the phosphorescent display device 1 will be described. First, the phosphorescent display device 1 is installed at a predetermined outdoor location. This installation uses a mounting hole 25 (see FIG. 3) provided in the LED mounting plate 7 at a predetermined location about 80 m away from the tsunami evacuation facility for the display panel 2 and the control box 3, and uses bolts, U metal fittings, etc. And attach it to the installation plate or installation column. Then, the AC outlet of the power cable 24 is connected to a commercial AC 100V power source, and the timer 8 is set to a predetermined time. The set time of the timer 8 is set to the evening time when the ultraviolet rays from sunlight are reduced, and the on time of the timer 8 is set to about 2 to 5 hours, for example.

  In the daytime in the installed state of the phosphorescent display device 1, sunlight is irradiated from the front side of the phosphorescent plate 6, and the ultraviolet rays are transmitted through the cover film 20, the design film 15, and the substrate 6a, and the back side of the substrate 6a. The phosphorescent material 17 is stored. At this time, each of the designs 15a to 15d of the phosphorescent plate 6 has a light yellow color of the design portion 19a corresponding to the concave portion 16 and a green color of the edge portion 19b, for example, on the surface of the substrate 6a other than the design (recess portion 16). It is visually recognized (referred to as a first display state) in a state distinguished from white or the like. In the evening, for example, at 16:00, the timer 8 operates and is turned on. When the surrounding becomes dark at 16:30 in this on state, the light sensor 9 is turned on.

  When the light sensor 9 is turned on, AC 100V power is supplied to each LED module 22. As a result, each LED 22a is turned on, and its ultraviolet rays are transmitted through the film 18 of the phosphorescent plate 6 and directly irradiated to the phosphorescent material 17. At this time, since the two sets of LED modules 22 are arranged at equal positions in the left-right direction at the approximate center in the height direction of the base material 6a, the entire area of each of the designs 15a to 15d with a total of six LEDs 22a. Can be covered substantially evenly, and the phosphorescent material 17 corresponding to each of the designs 15a to 15d is accumulated substantially uniformly.

  At the same time, since the phosphorescent material 17 is filled in the square concave portion 16 having a chevron cross section, the ultraviolet rays irradiated to the concave portion 16 are irregularly reflected by the inclined surface 16 a of the concave portion 16, and the ultraviolet rays are efficiently applied to the phosphorescent material 17. Will be stored. When the ambient light gradually darkens from daytime to nighttime with the predetermined light storage by turning on the LED 22a, the light (phosphorescence) stored in the light storage material 17 is radiated toward the surface side of the substrate 6a, and The designs 15a to 15d of the material 6a are in a weakly shining state, and the design 15 and the base material 6a are visually recognized (referred to as a second display state) from the front side of the phosphorescent plate 6.

  On the other hand, at night when the surroundings are dark, the light stored in the phosphor storage material 17 by the lighting of the LED 22a or sunlight during the daytime is radiated toward the surface side of the substrate 6a, and only the designs 15a to 15d. It is visually recognized (referred to as a third display state) in a state where it appears in the dark. In the third display state and the second display state, since the phosphorescent material 17 is filled in the concave portion 16 having a mountain-shaped cross section, the stored light is transmitted in various directions from the four slopes 16a having the mountain shape. The light is refracted and is partially reflected by the inclined surface 16a of the adjacent concave portion 16, that is, in a diffusely reflected state. This light is visually recognized from the surface side of the phosphorescent plate 6, and the designs 15a to 15d are visually recognized well even in the evening or midnight.

  In other words, the phosphorescent display device 1 includes the LED 22a that can directly irradiate the phosphorescent material 17 of the phosphorescent plate 6 in the casing 5 of the display panel 2, and the LED 22a is predetermined in the evening when the surroundings are not completely dark. By turning on the light for a long time, the light emission brightness of each design 15a to 15d in the evening is ensured to a predetermined level, and at night when the surroundings are dark, sufficient light emission brightness is ensured by the phosphorescence stored by the LED 22a and sunlight. can do.

  As a result, the first to third display states are obtained in 24 hours a day, and it is possible to suppress a significant decrease in the degree of visual recognition of the designs 15a to 15d when shifting from daytime to nighttime. In this embodiment, an AC specification product is used as the LED 22a, and AC 100V power is directly supplied. However, for example, when a DC specification product is used as the LED 22a, the LED 22a is on the bottom surface in the housing 5 of the display panel 2. For example, an AC / DC converter may be provided so that a predetermined DC power converted by the converter is supplied to the LED 22a.

  Thus, according to the phosphorescent display device 1, the phosphorescent plate 6 is disposed on the front surface of the housing 5, and the LED 22a capable of directly irradiating the phosphorescent material 17 with ultraviolet rays is disposed on the rear surface of the housing 5, In order to cause the LED 22a to emit light when the optical sensor 9 is activated within the time set by the timer 8, a simple configuration in which the phosphorescent material 17 and the LED 22a are arranged opposite to each other in the front and rear in the housing 5 is sufficient to irradiate sunlight. Even if it cannot be obtained, the ultraviolet light of the LED 22a can be directly irradiated to the phosphorescent material 17 of the phosphorescent plate 6 to compensate for the decrease in ultraviolet rays irradiated to the phosphorescent material 17 at sunset. The phosphorescent effect can be sufficiently enhanced.

  In particular, the LED 22a capable of irradiating the phosphorescent material 17 with ultraviolet rays is disposed in the housing 5, and the lighting of the LED22a is controlled by the timer 8 and the light sensor 9 of the control box 3, so that the phosphorescent display device 1 is daytime. The first visual state at the time, the second display state at the time of transition from daytime to nighttime, and the third display state at nighttime can be obtained. Even the display panel 2 having a large area can be suitably used as a guidance display board for tsunamis and the like that do not know when each design 15a to 15d can be visually recognized.

  Further, since the phosphorescent material 17 is filled and solidified in the recess 16 formed in the cross-sectional mountain shape on the back surface of the substrate 6a corresponding to the designs 15a to 15d of the substrate 6a, the phosphorescent material 17 corresponds to the design portion. It is sufficient to fill only the recessed portion 16, and the amount of use can be greatly reduced, and the shape of the recessed portion 16 can efficiently store ultraviolet rays in the phosphorescent material 17 in the recessed portion 16. Further, the phosphor portion of the phosphorescent material 17 in the concave portion 16 corresponding to the designs 15a to 15d can be visually recognized from the surface side, and the phosphor portion radiated from the phosphorescent material 17 can be seen in the chevron portion of the adjacent concave portion 16 Therefore, it is possible to provide an inexpensive phosphorescent display device 1 with a further enhanced phosphorescent effect while reducing the amount of phosphorescent material 17 used. Become.

  Furthermore, two sets of LED modules 22 having three LEDs 22a are arranged on the inner surface of the LED mounting plate 7 at a predetermined distance in the left-right direction at the center in the height direction corresponding to the designs 15a to 15b of the substrate 6a. Therefore, the number of the LED modules 22 can be effectively reduced, and the phosphorescent effect of each of the designs 15a to 15d can be further enhanced while further simplifying the phosphorescent display device 1 and the like. Furthermore, since the LED 22a is caused to emit light using a commercial AC 100V power source, each LED 22a can be stably and surely turned on, and the light emission time of the LED 22a is set to several hours in the evening, which is excellent in power saving. The phosphorescent display device 1 can be obtained.

  Since the timer 8 and the light sensor 9 are disposed in the control box 3 and connected to the display panel 2 via the cable 21, the separate display panel 2 and the control box 3 are placed at predetermined positions such as outdoors. It can be attached and the versatility of installation can be enhanced, and maintenance and inspection of the phosphorescent display device 1 can be easily performed. Moreover, since each frame 5a-5c of the housing | casing 5 of the display panel 2 can be disassembled and the phosphorescent plate 6 and the LED mounting plate 7 can be inserted into and removed from the grooves 11a and 11b, installation, maintenance work, etc. of the phosphorescent display device 1 are possible. The drainage hole 12 can prevent rainwater from staying inside the housing 5 and can be stably installed outdoors, so that the phosphorescent display device 1 having excellent reliability can be obtained. .

  FIG. 10 is a configuration diagram of another embodiment of the phosphorescent display device according to the present invention. The same parts as those in the embodiment will be described with the same reference numerals. A feature of the phosphorescent display device 1 of this embodiment is that the phosphor 22 is made to emit light by causing the LED 22a of DC specification to emit light using the power of the solar panel 27 instead of the commercial AC power source. The solar panel 27 is disposed in a horizontal state or an inclined state on the upper surface of the display panel 2 or the control box 3 or a position different from these, and is connected to the control box 3 by a cable 30. In the control box 3, a controller 28 having an internal timer (not shown) and an optical sensor connected thereto and a capacitor 29 for storing the power of the solar panel 27 are arranged. The capacitor 29 is connected to the LED module 22 in the display panel 2. The cable 21 is directly connected to the cable.

  Then, the controller 28 stores the DC power obtained from the solar panel 27 in the capacitor 29, lights the LED 22a during the evening on time set by the internal timer, and stores the phosphorescent material 17 of the phosphorescent plate 6. Also in the phosphorescent display device 1 of this embodiment, the first to third display states described above are obtained, such as causing the phosphorescent material 17 to emit light by turning on the LED 22a in the evening, and the same effects as the above embodiment are obtained. be able to. Further, since the commercial AC power supply is not required, the phosphorescent display device 1 can be easily installed, such as no need to select an installation location. In the case of the phosphorescent display device 1 of this embodiment, for example, when the case 5 is large, such as a store signboard, the controller 28 and the capacitor 29 can be arranged in the case 5, and in this case, The optical sensor 9 may be disposed on the side surface of the housing 5 or the like.

  In each of the above embodiments, the AC commercial power source or the solar panel 27 power source is used as the power source of the LED 22a. However, the AC commercial power source and the solar panel 27 are both provided, and the controller 28 switches between these appropriately. You can do it. In each of the above embodiments, an example in which three general ultraviolet LEDs 22a are modularized as LED emitters has been described. However, the present invention is not limited to this, and, for example, a wide-angle ultraviolet LED having a directivity angle of about 100 degrees. May be arranged corresponding to each of the designs 15a to 15d. In this case, when the design 15 is complicated, a printed circuit board having a circuit pattern is used as the LED mounting plate 7, and the circuit What is necessary is just to solder each LED22a to a pattern.

  Furthermore, in the above embodiment, the LED 22a emits light based on both the set time by the timer 8 and the detection result of the optical sensor 9, but the present invention only requires that the LED 22a emits light for a predetermined time in the evening. For example, it is of course possible to control the light emission of the LED 22a only by the timer 8 or only the optical sensor 9, for example. Further, the form of the display panel 2, the configuration of the phosphorescent plate 6 and the housing 5, the configuration of the control box 3 and the like in the embodiment are merely examples. For example, the recess 16 of the phosphorescent plate 6 is connected to a number of square recesses 16. In the range which does not deviate from the gist of each invention concerning the present invention, for example, one or a plurality of recesses 16 corresponding to each design shape, or the optical sensor 9 is disposed on the display panel 2, etc. An appropriate configuration can be adopted.

  The present invention is not limited to a phosphorescent display device for evacuation guidance in the event of a disaster, etc., but has a predetermined design on the surface side such as a guidance display board for emergency exits in various buildings, signboards of shops and companies, etc. It can be used for all phosphorescent display devices installed indoors and outdoors.

DESCRIPTION OF SYMBOLS 1 ...... Phosphorescent display device 2 ... Display panel 2a ... Base material 3 ... Control box 5.・ ・ ・ ・ ・ ・ ・ ・ Case 6 ・ ・ ・ ・ ・ ・ ・ ・ ・ Luminescent plate 7 ・ ・ ・ ・ ・ ・ ・ ・ LED mounting plate 8 ・ ・ ・ ・ ・ ・ ・ ・ Timer 9 ・ ・ ・..... Optical sensors 11a, 11b ... Groove 15 ... Design film 16 ...... Concave part 16a ...... Slope 17 ...・ ・ ・ ・ Luminescent material 18 ・ ・ ・ ・ ・ ・ ・ ・ Film (coating material)
20 ... Cover film 22 ... LED module 22a ... LED
27 ... Solar panel 28 ... Controller 29 ... Capacitor

Claims (6)

  A plate-like base material on which a predetermined design is arranged on the front surface side, a phosphorescent material arranged on the back side of the base material corresponding to the shape of the design, and the base material so as to cover the phosphorescent material And a phosphorescent plate disposed on the front surface of the housing, and LED light emission disposed on the rear surface of the housing and capable of directly irradiating the phosphorescent material with ultraviolet rays. And a control means capable of lighting the LED light emitter for a predetermined time set when shifting from daytime to nighttime. The control means causes the LED light emitter to emit light when the light sensor detects ambient brightness within a set time of the timer and operates at a predetermined darkness, and when the set time of the timer has elapsed. The phosphorescent display device according to claim 1, wherein the LED light emitter is turned off.   3. The phosphorescent material is filled and solidified in a concave portion formed in a cross-sectional chevron shape at a predetermined depth on the back surface of the base material corresponding to the design of the base material surface. The phosphorescent display device described in 1.   The LED light emitter is formed of a plurality of LED modules having a plurality of LEDs capable of irradiating ultraviolet rays, or is formed of a plurality of wide angle LEDs capable of irradiating ultraviolet rays at a wide angle, and these are the back plates of the housing 4. The phosphorescent display device according to claim 1, wherein the phosphorescent display device is disposed on an inner surface of the LED mounting plate that also serves as a part corresponding to the design. 5.   The said control means makes the said LED light-emitting body light-emit using the electric power of a commercial alternating current power supply, or makes the said LED light-emitting body light-emit using the electric power of a solar panel. A phosphorescent display device according to any one of the above. The timer and the light sensor are disposed in a control box, and are connected via a cable to a display panel having the casing in which the phosphorescent plate and the LED light emitter are disposed. The phosphorescent display device according to any one of 2 to 5.

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