JPH08250069A - Neon display - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent damage to the glass part of the neon tube. [Structure] In the neon tubes 11a, 11b, 11c, the valves 13a, 13b, 13c are covered with a transparent silicone rubber buffer film 16, and further embedded in a transparent acrylic resin reinforcing material 15. Since the reinforcing material 15 resists external shocks and stresses, and the buffer coating 16 absorbs the size change due to the difference in expansion coefficient between the reinforcing material 15 and the valves 13a, 13b, 13c, the valves 13a, 13b are expanded and contracted. , 13c is not damaged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called neon display device which is equipped with a gas-filled cold cathode tube such as a neon tube and is mainly used as a signboard or auxiliary lighting.

[0002]

2. Description of the Related Art Gas-filled cold cathode tubes such as neon tubes that emit light of various colors are used for so-called neon signs, bedroom lighting, and auxiliary lighting. Particularly when used for neon signs, tubular glass parts (bulbs) are bent to form letters, patterns and various shapes in a plane.

There are various sizes of gas-filled cold cathode tubes used for neon signs. Thick bulbs are used for large neon signs placed on the rooftops and walls of buildings, and thin ones are used for small neon signs that indicate the store's name and business. The size is inversely proportional to the distance between the viewer and the viewer of the neon sign, and a so-called 3 mm tube having a valve diameter of 3 mm is used for the neon sign that is very close to the viewer.

[Problems to be Solved by the Invention]

The thinner the cold cathode tube containing gas is, the weaker it is against shock and the more easily the bulb portion is damaged. The signboard is lit and used at night, and as is clear from the expression "neon town", it is often used in restaurants. Since the signboard's primary purpose is to attract the attention, the signboard of the neon sign often attracts the drunkards who swarm the food and drink, and is often touched, flipped, and sometimes hit or kicked. You will be shocked. The signboards that can be touched by drunks use thin and thin glass cold cathode tubes containing gas, such as 3 mm tubes, so even if they are stored in the case, It is easily damaged by a light shock.

In order to prevent damage, the entire gas-filled cold cathode tube may be embedded inside a suitable reinforcing material, but the possible reinforcing material and the glass may differ depending on conditions such as temperature and humidity. There was a difference in the expansion coefficient, and this difference in the expansion coefficient would damage the glass tube, which was not possible.

Therefore, an object of the present invention is to provide a neon display device capable of withstanding an external shock even when the glass tube of the gas-filled cold cathode tube is thin.

[0007]

In order to achieve the above object, the invention according to claim 1 provides a neon display device having at least one cold cathode tube containing a gas such as a neon tube. A buffer layer made of a flexible and translucent material is provided around at least the entire glass portion of the cathode tube, and a reinforcing layer made of a rigid and translucent material is provided further outside the buffer layer. A neon display device was constructed.

According to a second aspect of the present invention, the neon display device according to the first aspect is configured such that the buffer layer is made of synthetic rubber and the reinforcing layer is made of plastic.

The invention according to claim 3 is the neon display device according to claim 2, wherein the buffer layer is made of silicon rubber and the reinforcing layer is made of acrylic resin.

According to a fourth aspect of the present invention, the buffer layer comprises:
The neon display device according to any one of claims 1 to 3 is configured such that the film is formed by directly applying a material on the entire peripheral surface of the glass portion of the gas-filled cold cathode tube.

According to a fifth aspect of the present invention, the buffer layer comprises:
The coating film formed by dip-coating the entire peripheral surface of the glass portion of the gas-filled cold cathode tube.
The neon display device described in 1. was constructed.

According to a sixth aspect of the present invention, the reinforcing layer comprises:
A buffer layer that is a film is formed by putting the gas-filled cold cathode tube, which has already been formed, inside a mold, and injecting the material that constitutes the reinforcing layer until at least the buffer layer is covered, and casting. The neon display device according to claims 4 to 5 is configured.

According to a seventh aspect of the present invention, the neon display device according to the first to sixth aspects is configured such that the gas-filled cold cathode tube is a 3 mm tube.

The invention according to claim 8 constitutes the neon display device according to claims 1 to 7 as a signboard for advertisement.

According to a ninth aspect of the present invention, there is provided the neon display device according to any one of the first to seventh aspects, wherein the neon display device is an illumination device including a gas-filled cold cathode tube that is provided so as to surround the periphery of a license plate of an automobile. Configured.

The invention described in claim 10 is at least 1
In a neon display device including a gas-filled cold cathode tube such as a neon tube of a book, a buffer layer made of a material having flexibility and translucency is provided around at least the glass portion of the gas-filled cold cathode tube. Further, a reinforcing layer made of a material having rigidity is provided on at least a part of the outer side of the buffer layer to form a neon display device.

The invention according to claim 11 is the neon display device according to claim 10, wherein the buffer layer is made of synthetic rubber and the reinforcing layer is made of plastic.

According to a twelfth aspect of the invention, the neon display device according to the eleventh aspect is configured such that the buffer layer is made of silicon rubber and the reinforcing layer is made of acrylic resin.

According to a thirteenth aspect of the present invention, in the buffer layer, the gas-filled cold cathode tube is put in a mold, and at least a glass portion of the gas-filled cold cathode tube is covered with a material forming the buffer layer. The neon display device according to any one of claims 10 to 12 is formed by injecting up to and casting.

According to a fourteenth aspect of the present invention, the entire shape of the cold cathode tube with gas is substantially flat, and the buffer layer is formed by arranging the gas cathode cold cathode tube in a posture in which it can be laid inside the plate-shaped mold. The neon display device according to claim 13, wherein the buffer layer is formed by casting a material.

According to a fifteenth aspect of the present invention, in the neon display device according to the fourteenth aspect, the reinforcing layer has a flat plate shape which is adhered to at least one of the front and back surfaces of the flat buffer layer. Configured.

According to a sixteenth aspect of the present invention, the reinforcing layer is a flat plate bonded to the back surface of a flat buffer layer, and at least one of the front and back surfaces of the flat plate of the cold cathode tube containing gas is formed. The neon display device according to claim 15 is configured to have a reflective layer that reflects light from a direction.

According to a seventeenth aspect of the invention, the neon display device according to the tenth to sixteenth aspects is configured so that the gas-filled cold cathode tube is a 3 mm tube.

According to the eighteenth aspect of the present invention, the neon display device according to the tenth to seventeenth aspects is configured to be a signboard for advertisement.

[0025]

Since the present invention has the above-mentioned structure, it has the following effects.

In the neon display device according to the first aspect of the invention, a buffer layer made of a flexible and translucent material is provided at least around the entire glass portion of the gas-filled cold cathode tube. ing. A reinforcing layer made of a material having rigidity and translucency is provided on the entire outer side of the buffer layer. Since the buffer layer and the reinforcing layer around the glass portion of the gas-filled cold cathode tube have a light-transmitting property, the lighting of the gas-filled cold cathode tube can be seen from the outside. Also, the temperature,
Even if the glass part of the reinforcing layer and the gas-filled cold cathode tube expands and contracts at different expansion rates due to changes in the environment such as humidity,
Since the flexible buffer layer absorbs the difference in size change, the glass portion is not damaged. Furthermore, since the reinforcing layer has rigidity, the glass portion will not be damaged in spite of external shock or stress.

In the neon display device according to the second aspect of the present invention, since the buffer layer is made of synthetic rubber and the reinforcing layer is made of plastic, it is easy and inexpensive to manufacture. Also,
Materials having excellent flexibility, light transmittance, specific gravity, durability, and heat resistance can be selected.

In the neon display device according to the third aspect of the present invention, since the buffer layer is made of silicon rubber and the reinforcing layer is made of acrylic resin, it can be manufactured easily and inexpensively. Further, since silicon rubber has extremely high heat resistance and good water resistance, it is suitable for being placed around the glass portion of the gas-filled cold cathode tube. Acrylic resins have excellent transparency and good weather resistance, and are particularly suitable for outdoor use such as signboards.

In the neon display device according to the fourth aspect of the present invention, the buffer layer covers the peripheral surface of the glass portion by directly applying the material to the entire peripheral surface of the glass portion of the gas-filled cold cathode fluorescent lamp. It is formed as a film.

In the neon display device according to the fifth aspect of the present invention, the buffer layer which is a film is formed by dip coating.

In the neon display device according to a sixth aspect of the present invention, a gas-filled cold cathode tube in which a buffer layer that is a film has already been formed is placed in the mold, and at least the material forming the reinforcing layer is used as the buffer layer. Are cast and cast until they are covered.

In the neon display device according to the invention as defined in claim 7, the 3 mm tube cold cathode tube containing gas is turned on.

The neon display device according to the invention described in claim 8 is used as a signboard for advertisement.

In the neon display device according to a ninth aspect of the present invention, since the cold cathode tube containing the gas is provided so as to surround the periphery of the license plate of the automobile, the license plate surface is illuminated.

In the neon display device according to a tenth aspect of the present invention, a buffer layer made of a flexible and translucent material is provided at least around the entire glass portion of the gas-filled cold cathode fluorescent lamp. ing. A reinforcing layer made of a rigid material is provided on at least a part of the outer side of the buffer layer. Since the buffer layer around the glass portion of the gas-filled cold cathode tube has a light-transmitting property, the lighting of the gas-filled cold cathode tube can be seen from the outside. Further, even if the reinforcing portion and the glass portion of the gas-filled cold cathode tube expand and contract at different expansion rates due to changes in the environment such as temperature and humidity, since the flexible buffer layer absorbs the difference in size change, The glass part is not damaged. Furthermore, since the buffer layer absorbs shock and the reinforcing layer has rigidity against bending stress, the glass portion will not be damaged in spite of external shock or stress.

In the neon display device according to the eleventh aspect of the present invention, since the buffer layer is made of synthetic rubber and the reinforcing layer is made of plastic, it is easy and inexpensive to manufacture. Further, materials having excellent flexibility, light transmittance, specific gravity, durability and heat resistance can be selected.

In the neon display device according to the twelfth aspect of the present invention, since the buffer layer is made of silicon rubber and the reinforcing layer is made of acrylic resin, it can be easily and inexpensively manufactured.
Further, since silicon rubber has extremely high heat resistance and good water resistance, it is suitable for being placed around the glass portion of the gas-filled cold cathode tube. Acrylic resin has excellent transparency,
It has good weather resistance and is particularly suitable for outdoor use such as signboards.

In the neon display device according to a thirteenth aspect of the present invention, as the buffer layer, a gas-filled cold cathode tube is placed inside a mold, and a material forming the buffer layer is at least a glass portion of the gas-filled cold cathode tube. Is cast and cast until it is covered.

In the neon display device according to a fourteenth aspect of the present invention, the gas-filled cold cathode fluorescent lamp, which has a substantially planar shape as a whole, is arranged in such a manner that it can be laid inside a flat plate-shaped mold, and a buffer layer is provided. A buffer layer is formed by cast molding the material forming the.

In the neon display device according to the fifteenth aspect of the present invention, the reinforcing layer has a flat plate shape which is adhered to at least one of the front and back surfaces of the flat buffer layer, and therefore resists bending stress. be able to.

In the neon display device according to the sixteenth aspect of the present invention, one of the front and back surfaces of the flat reinforcing layer is
Since it has a reflective layer that reflects light from at least the direction of the gas-filled cold cathode tube, it reflects the light emitted by the gas-filled cold cathode tube.

In the neon display device according to the seventeenth aspect of the present invention, the 3 mm tube cold cathode tube containing gas is turned on.

The neon display device according to the invention of claim 18 is used as a signboard for advertisement.

[0044]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the drawings will be described below.

(First Embodiment) FIG. 1 is a perspective view showing an embodiment of a neon display device according to the present invention, and FIGS. 2 and 3 are a front view and a side view showing the same embodiment, respectively. FIG. 4 is a IV-IV view of FIG. In FIG. 4, the thicknesses of some layers are shown with some emphasis.

In each figure, the neon display device 1 includes three neon tubes 11a, 11b, 11c. Each neon tube 11a, 11b, 11c is bent, and each has three characters of "quotient", "i", and "medium". In this embodiment, each neon tube 11 is used to represent a character.
Each of a, 11b, and 11c is bent into a substantially planar shape as a whole. Each neon tube 11a, 11b,
11c is a 3 mm tube, and the total length from the upper end to the lower end is about 25 cm. The neon display device 1 of the present embodiment is usually arranged at the entrance or exit of a restaurant, and is used as a sign indicating that it is lit and is in business, as indicated by the letters “in business”.

Each neon tube 11a, 11b, 11c includes an electrode portion 12a, 12b, 12c and a valve 13 respectively.
a, 13b, 13c. Electrode parts 12a, 12
A line 14 is connected to each of b and 12c. The line 14 extends to the outside and is connected to an inverter (not shown), and each neon tube 11a,
Power is supplied to 11b and 11c. Valves 13a, 13b,
Neon gas is enclosed in 13c and emits red light when power is supplied. Valve 13b of neon tube 11b
Is provided with a light-shielding layer 111 in which an opaque synthetic rubber is applied to the periphery of the middle portion in order to form the letter "I" separated into the left and right.

As shown in FIG. 4, each neon tube 11a, 11b, 11c is embedded in the reinforcing material 15. The reinforcing material 15 is made of a transparent acrylic resin (that is, polymerization of acrylic acid esters or methacrylic acid esters). In addition, each valve 13a, 13b, 13
The entire peripheral surface of c is covered with the buffer film 16. The buffer film 16 is made of transparent and flexible silicone rubber.

The neon display device 1 according to this embodiment is manufactured as follows.

First, each neon tube 11a, 11 having an appropriate length and bent so as to show a character.
For b and 11c, the steps of immersing in a silicone rubber solution and pulling up are performed an appropriate number of times to remove the valves 13a and 13c.
A buffer film 16 having an appropriate thickness is formed on the entire peripheral surfaces of b and 13c. The thickness of the buffer film 16 is appropriately adjusted based on the elastic modulus and hardness of the material silicon rubber and the expansion coefficient of the reinforcing material 15 around it.

For example, the reinforcing material 1 as in this embodiment.
If an acrylic resin is used as the material of No. 5, the acrylic resin is expected to expand and contract by 0.4 to 5% due to changes in humidity and temperature, so that the buffer film 16 has a thickness that can absorb this size change. The number of times of dip coating is adjusted as described above. Of course, since glass has strength and elasticity to some extent, it is sufficient that the buffer film 16 cannot absorb all the expansion and contraction of the reinforcing material 15.

Each neon tube 11 on which the buffer film 16 is formed
a, 11b, and 11c are inside the plate-shaped cubic mold,
Each is positioned and laid down. The end of the line 14 is left outside. And each neon tube 11 inside the mold
The acrylic resin solution is injected until the a, 11b, and 11c are sufficiently covered to form the cubic reinforcing material 15. When the acrylic resin solution solidifies, it is taken out of the mold, subjected to surface treatment, and connected to the line 14 with an inverter to complete the process.

In this embodiment, each neon tube 11a,
Since the reinforcing material 15 must be formed in a state where 11b and 11c are embedded in a fixed position, injection molding using hot melt is not suitable. Each neon tube 11a, 11
It is not necessary to expose each valve 13a, 13b, 13c, which is easily damaged, to a sudden temperature change or pressure without affecting the position and posture of b, 11c, and deformation or size change before solidification. Cast molding using a difficult open mold is preferred.

The neon display device manufactured in this manner is used as a signboard, and each neon tube 11a, 11b, 11c is turned on by energizing it through an inverter at night. The buffer film 16 is made of transparent silicone rubber,
Since the reinforcing material 15 is made of transparent acrylic resin, it is "in business".
The character of can be seen from the outside. Acrylic resin has the highest light transmittance among plastics, so reinforcement material 1
It is suitable as a material for item 5. Although the neon tube does not generate much heat, silicon rubber has high heat resistance and acrylic resin has heat resistance to some extent, so that it is difficult to deform or burn.

Since each neon tube 11a, 11b, 11c is embedded in the reinforcing member 15 via the buffer film 16, each valve 13a, 13b, 13c is externally exposed as compared with the conventional state. Durability is significantly improved against impact from, and even a signboard using a 3 mm tube is not easily damaged.

Since each neon tube 11a, 11b, 11c is covered with the buffer film 16 having an appropriate thickness,
Even if the reinforcing material 15 expands and contracts due to changes in temperature and humidity, the buffer coating 16 absorbs the size change to some extent, so that the valves 13a, 13b, and 13c are not damaged.

(Second Embodiment) FIG. 5 is a perspective view showing a second embodiment of the neon display device according to the present invention, FIG. 6 is a side view of the same embodiment, and FIG. 6 is a VII of FIG. -VII is a view.

The neon display device 2 of this embodiment is also a signboard, and each neon tube 21a, 21b, 21c has an electrode part 22a, 22b, 22c and a valve 23a, 23b, 23c, respectively, as in the first embodiment. It is a 3 mm tube that is bent and represents the character "in business". Light-shielding layer 21
1 and the line 24 have the same configuration.

The present embodiment differs from the first embodiment in that each neon tube 21a, 21b, 21c is embedded in a cushioning material 25 made of transparent and flexible silicone rubber. A reinforcing plate 26 made of a rigid acrylic resin is attached to the back surface of the cushioning member 25 having a flat cubic shape. A light reflection layer 27 formed by vapor deposition of aluminum is provided on one surface of the reinforcing plate 26.

In this embodiment, first, a reinforcing plate 26 having aluminum vapor-deposited on one side is laid on the bottom of the mold, and each neon tube 2 is
1a, 21b, 21c are arranged, and each neon tube 21a, 2 is arranged.
It is manufactured by injecting a silicone rubber solution into the mold until the 1b and 21c are covered, cast-molding the buffer material 25, and taking out after solidifying. Similar to the first embodiment, cast molding is preferable to injection molding because of temperature, pressure, and positioning.

This neon display device 2 includes each neon tube 21.
Light a, 21b, and 21c to use as a signboard. Since the cushioning material 25 is made of transparent silicone rubber, the word "in business" can be seen from the outside. Also, each neon tube 2
The light emitted from 1a, 21b, and 21c is reflected by the reflective layer 27, and diffuse reflection occurs between the side surface, the end surface, and the surface of the cushioning material 25, thereby producing a special visual effect.

Since the neon tubes 21a, 21b, 21c are embedded in the cushioning material 25, the valves 23a, 2
3b and 23c have significantly improved durability against external impacts as compared with the conventional exposed state, and even signboards using a 3 mm tube are not easily damaged. Further, since the reinforcing plate 26 resists the bending stress, the bending stress causes the respective valves 23 to be affected by the bending stress in spite of the flexible cushioning member 25.
Damage to a, 23b, and 23c is also prevented.

The valves 23a, 23b and 23c are
Even if the cushioning material 15 expands and contracts due to changes in temperature and humidity, the cushioning material 15 is flexible and will not be damaged.

(Third Embodiment) FIG. 8 is a front view showing a third embodiment of the neon display device according to the present invention, and FIG. 9 is a view taken along line IX-IX of FIG.

This neon display device 3 is for illuminating the license plate 4 of an automobile, and illuminates the surface of the license plate 4 with a neon tube 31 protruding from the peripheral portion of the license plate 4. Neon tube 31,
It is composed of an electrode portion 32 and a valve 33, and the valve 33 is bent in a rectangular shape. The lines 34, 34 are connected to the vehicle battery via an inverter (not shown). The periphery of the valve 33 is covered with a transparent silicon rubber buffer film 36, and is embedded in a transparent acrylic resin reinforcing material 35.

The neon display device 3 is manufactured by the same method as that of the first embodiment, and has substantially the same effect such as being able to withstand a shock such as a stop of running of the automobile, and other lighting methods. It consumes less power than other batteries, so you can save battery power.

The embodiment of the present invention has been described above.
It is needless to say that the present invention is not limited to the above-mentioned embodiments and can be appropriately modified within the scope of the gist of the present invention.

For example, the materials of the buffer layer and the reinforcing layer are not limited to those mentioned above, and other plastics or synthetic rubbers such as polyester and polyvinyl chloride can be used. Further, it is needless to say that the shape, size, and manufacturing process are not limited to those of the embodiment and can be modified.

[0069]

As described above, according to the neon display device of the first aspect of the present invention, it is possible to see the lighting of the gas-filled cold cathode fluorescent lamp from the outside and to prevent damage to the glass portion due to shock or stress. It is also possible to prevent damage to the glass portion due to expansion and contraction of the reinforcing layer.

According to the neon display device of the second aspect of the invention, since the buffer layer is made of synthetic rubber and the reinforcing layer is made of plastic, it is easy and inexpensive to manufacture. Further, materials having excellent flexibility, light transmittance, specific gravity, durability and heat resistance can be selected.

According to the neon display device of the third aspect of the invention, since the silicon rubber has extremely high heat resistance and good water resistance, it is suitable for being arranged around the glass portion of the gas-filled cold cathode tube. There is. Acrylic resins have excellent transparency and good weather resistance, and are particularly suitable for outdoor use such as signboards.

According to the neon display device of the fourth aspect of the present invention, the buffer layer is formed by coating as a film covering the peripheral surface of the glass portion, so that the buffer layer can be formed reliably and easily.

According to the neon display device of the fifth aspect of the present invention, the buffer layer, which is a coating, can be easily formed by dip coating, and the thickness of the coating can be easily adjusted.

According to the neon display device of the sixth aspect, since the reinforcing layer is formed by casting, it can be easily manufactured and does not adversely affect the gas-filled cold cathode tube. .

According to the neon display device of the seventh aspect of the invention, it is possible to prevent the damage of the gas-containing cold cathode tube of the 3 mm tube, which is particularly liable to be damaged.

According to the neon display device of the eighth aspect of the present invention, it is possible to prevent the damage of the gas-filled cold cathode fluorescent lamp of the signboard, which is particularly susceptible to manual shock.

According to the neon display device of the ninth aspect of the present invention, the cold cathode tube containing gas is not damaged even when a shock such as the stop of running of the automobile is received, and compared with the conventional lighting method. Low power consumption saves battery power.

According to the neon display device of the tenth aspect of the present invention, while making it possible to see the lighting of the gas-filled cold cathode fluorescent lamp from the outside, damage to the glass portion due to shock or stress, and other portions. It is possible to prevent breakage due to the difference in expansion coefficient between the two.

According to the neon display device of the eleventh aspect of the present invention, since the buffer layer is made of synthetic rubber and the reinforcing layer is made of plastic, it is easy and inexpensive to manufacture, and has flexibility, light transmittance, specific gravity, and It is possible to select materials having excellent durability and heat resistance.

According to the neon display device of the twelfth aspect, the silicon rubber has extremely high heat resistance,
Since it has good water resistance, it is suitable for being placed around the glass portion of a gas-filled cold cathode tube. Acrylic resin has good weather resistance and is particularly suitable for outdoor use such as signboards.

According to the neon display device of the thirteenth aspect, since the buffer layer is formed by cast molding,
It does not adversely affect the gas filled cold cathode tube as in injection molding for example.

According to the neon display device of the fourteenth aspect of the present invention, the gas-filled cold cathode fluorescent lamp, which has a substantially planar shape as a whole, is arranged in a posture such that the cold cathode fluorescent lamp can be laid inside the flat plate-shaped mold. A buffer layer is formed by cast molding the material forming the.

According to the neon display device of the fifteenth aspect of the present invention, the flat reinforcing layer is adhered to at least one of the front and back surfaces of the flat buffer layer so as to resist the bending stress. It is possible to prevent breakage of the glass portion of the cold cathode tube.

According to the neon display device of the sixteenth aspect of the invention, a special visual effect can be produced by reflecting the light from the direction of the gas-filled cold cathode fluorescent lamp.

According to the neon display device of the seventeenth aspect of the invention, it is possible to prevent the damage of the gas-containing cold cathode tube of the 3 mm tube which is particularly liable to be damaged.

According to the neon display device of the eighteenth aspect of the invention, it is possible to prevent damage to the gas-filled cold cathode fluorescent lamp of the signboard which is particularly susceptible to manual shock.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a neon display device according to the present invention.

FIG. 2 is a front view showing the same embodiment.

FIG. 3 is a left side view showing the same embodiment.

FIG. 4 is a IV-IV view of FIG. 2.

FIG. 5 is a perspective view showing a second embodiment of the neon display device according to the present invention.

FIG. 6 is a left side view showing the same embodiment.

FIG. 7 is a VII-VII view of FIG. 6.

FIG. 8 is a perspective view showing a third embodiment of the neon display device according to the present invention.

9 is a view as seen from IX-IX in FIG. 8;

[Explanation of symbols]

 1 Neon Display Device 11a, 11b, 11c Neon Tube 13a, 13b, 14c Valve 15 Reinforcing Material 16 Buffer Film

Claims (18)

[Claims] 1. A neon display device comprising a gas-filled cold cathode tube such as at least one neon tube, wherein a material having flexibility and translucency around at least the entire glass portion of the gas-filled cold cathode tube. A neon display device comprising a buffer layer made of, and a reinforcing layer made of a material having rigidity and translucency provided on the entire outer side of the buffer layer. 2. The neon display device according to claim 1, wherein the buffer layer is made of synthetic rubber, and the reinforcing layer is made of plastic. 3. The neon display device according to claim 2, wherein the buffer layer is made of silicon rubber, and the reinforcing layer is made of acrylic resin. 4. The neon display device according to claim 1, wherein the buffer layer is a film formed by directly coating a material on the entire peripheral surface of the glass portion of the gas-filled cold cathode tube. 5. The neon display device according to claim 4, wherein the buffer layer is a film formed by dip coating the entire peripheral surface of the glass portion of the gas-filled cold cathode tube. 6. The reinforcing layer, wherein the gas-filled cold-cathode tube in which a buffer layer which is a film has already been formed is placed in a mold, and a material forming the reinforcing layer is injected at least until the buffer layer is covered. 5. It is formed by cast molding.
The neon display device according to any one of claims 1 to 5. 7. The neon display device according to claim 1, wherein the gas-filled cold cathode tube is a 3 mm tube. 8. A billboard for advertising purposes.
The neon display device according to 7. 9. The neon display device according to claim 1, which is a lighting device including a gas-filled cold cathode tube that is provided so as to surround a periphery of a license plate of an automobile. 10. A neon display device comprising a gas-filled cold cathode tube such as at least one neon tube, wherein a material having flexibility and translucency around at least the glass portion of the gas-filled cold cathode tube. And a reinforcing layer made of a material having rigidity is provided on at least a part of the outer side of the buffer layer. 11. The neon display device according to claim 10, wherein the buffer layer is made of synthetic rubber, and the reinforcing layer is made of plastic. 12. The buffer layer is made of silicone rubber,
The neon display device according to claim 11, wherein the reinforcing layer is made of acrylic resin. 13. The buffer layer is cast-molded by placing the gas-filled cold cathode tube in a mold and injecting the material forming the buffer layer at least until the glass portion of the gas-filled cold cathode tube is covered. It is formed by
The neon display device according to 2. 14. The gas-filled cold cathode fluorescent lamp has a substantially flat shape as a whole, and the material forming the buffer layer is cast-molded by being placed inside the flat plate-shaped mold in a posture in which it can be laid down. The buffer layer is thus formed.
The neon display device according to item 3. 15. The neon display device according to claim 14, wherein the reinforcing layer has a flat plate shape that is adhered to at least one of the front and back surfaces of the flat buffer layer. 16. The reinforcing layer has a flat plate shape bonded to the back surface of a flat buffer layer, and reflects light from at least the direction of the cold cathode tube containing gas on one of the front and back surfaces of the flat plate shape. The neon display device according to claim 15, further comprising a reflective layer. 17. The neon display device according to claim 10, wherein the cold cathode tube containing gas is a 3 mm tube. 18. A signboard for advertising.
The neon display device according to 0 to 17.