JPH08106880A - Neon glow discharge lamp and display device - Google Patents

Abstract

PURPOSE: To improve the luminous intensity by increasing the sealing pressure of neon gas, and provide a slightly pink emitted light to improve visual confirmability by mixing trace amounts of carbon dioxide and nitrogen gas. CONSTITUTION: A rare gas mainly consisting of neon and having carbon dioxide and nitrogen gas mixed thereto is sealed in a bulb 6 having electrodes 7, 7 sealed to both end parts to form a neon glow discharge lamp 4. The sealing pressure of neon gas and the sealing pressure of carbon dioxide and nitrogen gas are set to 30-120Torr and less than 1Torr, respectively, and the bore diameter of the bulb 6 is set to 1.0-10.0mm. A conductive tape consisting of an aluminum adhesive tape is adhered onto the outer surface of the bulb 6 along the tube axial direction to closely form a close conductor 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a neon glow discharge lamp and a display device in which a rare gas mainly containing neon is enclosed in a bulb.

[0002]

2. Description of the Related Art Recently, use of a low-pressure discharge lamp has been studied as a light source of a display device such as a high mount stop lamp for vehicles such as automobiles and a rear combination lamp. This low-pressure discharge lamp has higher luminous efficiency than an incandescent lamp, has the advantage that bright light can be obtained with less power consumption, and that the light source can be formed to be elongated. Therefore, it is effective when used in a vehicle-mounted display device.

As a low-pressure discharge lamp, a fluorescent lamp is most well known. However, the fluorescent lamp has a problem that the vapor pressure of mercury changes depending on the ambient temperature condition, which causes a remarkable change in brightness. In order to use it as a light source for a vehicle-mounted display device, it is necessary to devise a heater for compensating for a decrease in brightness at low temperatures, which complicates the structure. On the other hand, the rare gas discharge lamp is effective as a light source for a vehicle-mounted display device because the rate of change in the light amount is small depending on the ambient temperature condition.

Among the rare gas discharge lamps, the neon glow discharge lamp, in particular, emits neon (Ne) 55.
It is a lamp that uses a high emission line spectrum of red emission of 0 to 800 nm, and is advantageous for vehicle-mounted light sources such as high mount stop lamps and rear combination lamps in that red light can be effectively used. That is, in many cases, the high mount stop lamp and the rear combination lamp illuminate and illuminate the display cover colored in red in order to give an alarm to the following vehicle. Therefore, if a neon glow discharge lamp that emits reddish light is used as the light source, the reddish light emitted from this light source and the display cover colored in red are combined to effectively emit light from the reddish display cover. Can be made. Also, since the emission of the neon glow discharge lamp itself is red,
It is also possible to use the emission color of the neon glow discharge lamp as it is by using a colorless and transparent display cover without coloring.

By the way, this type of on-vehicle display device is
There is a demand for improved visibility that can be clearly identified from distant following vehicles.

As a method of improving the visibility of the neon glow discharge lamp, it is conceivable to increase the filling pressure of the neon gas to be filled. The columns are narrowed and thinned, and the thinned positive columns cause distortion or shaking in the bulb, that is, a snake phenomenon, and the discharge becomes unstable.

Therefore, as a conventional neon glow discharge lamp, the structure described in Japanese Patent Application Laid-Open No. 1-93048 is known.

The neon glow discharge lamp described in Japanese Unexamined Patent Publication No. 1-93048 has an extremely thin bulb having an inner diameter of 5 mm or less and 0.5 to 20 Torr of neon gas sealed therein, and an electric input per 1 cm of arc length. 0.5-2.5W
Set to to prevent the snake phenomenon.

[0009]

However, the neon glow discharge lamp described in the above-mentioned Japanese Patent Laid-Open No. 1-93048 has a relatively low neon gas filling pressure, and therefore its luminous intensity is too low as a light source for a display device. Not only that, when the filling pressure of neon gas is a low pressure close to 0.5 Torr, neon disappears early and the life is shortened.

In addition, since the electric input per 1 cm of the arc length is relatively high despite the low filling pressure of the neon gas, the scattering of the electrode material is remarkable, and the blackening due to the sputtering as well as the abrasion of the electrode is caused. There is a problem that the life is extremely short.

The present invention has been made in view of the above problems and provides a neon glow discharge lamp and a display device which have improved visibility, eliminate instability of a positive column due to a snake phenomenon, and have excellent life characteristics. The purpose is to provide.

[0012]

A neon glow discharge lamp according to claim 1, wherein a rare gas mainly containing neon is enclosed in a bulb having electrodes sealed at both ends thereof. The rare gas has a neon gas filling pressure of 30 to 120 Torr and is a mixture of at least one of carbon dioxide gas and nitrogen gas at a filling pressure of 1 Torr or less.

A neon glow discharge lamp according to a second aspect of the present invention is a neon glow discharge lamp in which a rare gas mainly containing neon is enclosed in a bulb whose electrodes are sealed at both ends thereof. Filling pressure is 30 to 1
It is 20 Torr and has a minute emission spectrum at 450 to 550 nm.

A neon glow discharge lamp according to claim 3 is the neon glow discharge lamp according to claim 2, wherein
The intensity of the minute emission spectrum is 10% or less with respect to the peak spectrum.

The neon glow discharge lamp according to claim 4 is the neon glow discharge lamp according to any one of claims 1 to 3, wherein the inner diameter of the bulb is 1.0 mm or more.
It is 0.0 mm or less.

A neon glow discharge lamp according to a fifth aspect is the neon glow discharge lamp according to any one of the first to fourth aspects, in which a proximity conductor is provided on the outer surface of the bulb along the tube axis direction. Is.

The neon glow discharge lamp according to claim 6 is the neon glow discharge lamp according to claim 5, wherein
The length of the proximity conductor is equal to or less than the bulb length, and the end of the proximity conductor is formed within 50 mm from the tip of the electrode.

A neon glow discharge lamp according to a seventh aspect of the present invention is the neon glow discharge lamp according to the fifth or sixth aspect, wherein the proximity conductor is formed by bonding a conductive tape to the outer surface of the bulb.

A display device according to claim 8 houses the neon glow discharge lamp according to any one of claims 1 to 7 and the neon glow discharge lamp, and the neon glow discharge lamp is housed along the tube axis direction of the neon glow discharge lamp. And a reflector formed in a substantially gutter shape that extends.

According to a ninth aspect of the present invention, in the display apparatus according to the eighth aspect, when a neon glow discharge lamp provided with a proximity conductor is used, the proximity conductor is a bulb on the side opposite to the opening of the reflector. It is formed on the outer surface.

[0021]

In the neon glow discharge lamp according to the first aspect of the present invention, the rare gas mainly containing neon gas having a high filling pressure is contained in an amount of 30 to 12.
Since the light is filled with a filling pressure of 0 Torr, the luminous intensity is improved, and since the rare gas is mixed with at least one of carbon dioxide gas and nitrogen gas at a filling pressure of 1 Torr or less, the positive column can be narrowed even with a high filling pressure of neon gas. There is no tendency to diffuse, and the emission color is slightly pink, so that the visibility is improved. If it is higher than 1 Torr, the whiteness becomes strong and the desired chromaticity cannot be obtained.

In the neon glow discharge lamp according to the second aspect of the present invention, the rare gas mainly containing neon gas having a high filling pressure is used.
Since it is sealed at a sealing pressure of ~ 120 Torr, the luminous intensity is improved, and since it has a minute emission spectrum at 450 to 550 nm, even if the sealing pressure of high neon gas is high, the positive column does not tend to be narrowed and the emission color is Visibility is improved because it becomes slightly pink.

The neon glow discharge lamp according to claim 3 is the neon glow discharge lamp according to claim 2, wherein
Since the intensity of the minute emission spectrum is 10% or less with respect to the peak spectrum, the emission color is slightly pink, so that the visibility is improved. When the intensity of the minute emission spectrum is higher than 10%, the whiteness becomes strong and the desired chromaticity cannot be obtained.

The neon glow discharge lamp according to claim 4 is the neon glow discharge lamp according to any one of claims 1 to 3, wherein the bulb has an inner diameter of 1.0 mm or more.
Since it is 0.0 mm or less, the snake phenomenon of the positive column is prevented and the discharge is stabilized.

A neon glow discharge lamp according to a fifth aspect of the present invention is the neon glow discharge lamp according to any one of the first to fourth aspects, in which the proximity conductor is provided on the outer surface of the bulb along the tube axis direction. Due to the discharge inducing action, the starting voltage is lowered and the starting performance is improved, and since the proximity conductor is provided along the tube axis direction of the bulb, the positive column can be attracted and the snake phenomenon of the positive column is prevented and discharge is performed. Is stable.

The neon glow discharge lamp according to claim 6 is the neon glow discharge lamp according to claim 5, wherein
Since the length of the proximity conductor is formed to be equal to or less than the bulb length and the end of the proximity conductor is formed within a region within 50 mm from the tip of the electrode, the startability is surely improved and the oscillation of the positive column near the electrode is prevented.

A neon glow discharge lamp according to a seventh aspect is the neon glow discharge lamp according to the fifth or sixth aspect, in which the proximity conductor is formed by adhering a conductive tape to the outer surface of the bulb, so that the structure is simple and the assembly is easy. Is easy.

In the display device according to the eighth aspect, the neon glow discharge lamp according to any one of the first to seventh aspects is housed in a substantially gutter-shaped reflector extending along the tube axis direction. The device is obtained.

According to a ninth aspect of the present invention, in the display device according to the eighth aspect, since the proximity conductor is formed on the outer surface of the bulb opposite to the opening of the reflector, the proximity conductor blocks the light emitted forward. The ratio of doing is reduced.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a display device accommodating the neon glow discharge lamp of the present invention will be described below with reference to the drawings.

In FIG. 2 and FIG. 3, reference numeral 1 denotes a display device main body, and this display device main body 1 is, for example, a high mount stop lamp for vehicles, a rear combination lamp, etc., and is a reflector curved along the longitudinal direction. 2. Display cover 3 attached to one side of this reflector 2, reflector 2
It is composed of a neon glow discharge lamp 4 housed inside and a lighting device (not shown) for lighting the neon glow discharge lamp 4.

The reflector 2 is formed by pressing a rectangular steel plate, for example, an aluminum plate,
Along the longitudinal direction, the cross section is formed in a partially elliptical shape, that is, in a substantially U-shaped gutter shape, and has a reflecting surface 2a on the inner surface side.

The display cover 3 is made of translucent glass or translucent synthetic resin in a plate shape, and is attached to the front opening of the reflector 2. The display cover 3 may be colored red and emit red light.

On the other hand, the neon glow discharge lamp 4 is shown in FIG.
As shown in FIG. 3 to FIG. 3, it has a bulb 6 made of an elongated glass tube. The valve 6 has an inner diameter of 4.7 mm and an outer diameter of 5.8 mm, and has a valve length of 3 mm.
It is formed to 00 mm. The valve 6 has an inner diameter in the range of 1.0 to 10.0 mm and a valve length of 50 to 1000 mm.
It is preferably formed in the range of mm.

The neon glow discharge lamp 4 has electrodes 7, 7 sealed at both ends of the bulb 6. These electrodes 7 and 7 are cold cathodes, and are configured by joining an electrode shaft 7b to a cylindrical electrode body 7a made of nickel, for example, and the electrode shaft 7b is a sealing portion 8 formed at the end of the bulb 6. , 8 are airtightly penetrated and led out to the outside. further,
Bases 9 and 9 are attached to the ends of the valve 6, and the electrode shafts 7b and 7b of the electrodes 7 and 7 are connected. The electrodes 7 and 7 are arranged to face each other with an inter-electrode distance of 270 mm. The electrodes 7, 7 are not limited to cold cathodes, and may be small hot cathodes.

In the valve 6, a rare gas having a spectral characteristic shown in the graph of FIG. 4, that is, neon (Ne) is mainly used, and carbon dioxide such as carbon monoxide (CO), carbon dioxide (CO ₂ ) and A rare gas mixed with nitrogen (N) is enclosed. In this case, the intensity of the minute emission spectrum is about 4% with respect to the peak spectrum intensity. In addition, argon (Ar) of about 0.5% or less may be added to the rare gas in order to improve starting. The neon gas has a filling pressure in the range of 30 to 120 Torr, and carbon dioxide gas and nitrogen gas (N ₂ ) have a filling pressure of 1 at least.
It is sealed in the pressure range below Torr.

If the filling pressure of neon gas is less than 30 Torr, improvement of luminous intensity cannot be expected, and especially 1.0
If it is less than Torr, there is a problem that neon will disappear during the life. Further, when the filling pressure of neon gas exceeds 120 Torr, the starting voltage becomes extremely high, which makes starting difficult. Therefore, the filling pressure of neon gas is preferably in the range of 20 to 120 Torr.

Further, when the filling pressure of carbon dioxide gas or nitrogen gas mixed with the rare gas exceeds 1 Torr, the white color is intensified and the red color becomes thin, which makes it suitable for vehicles following high-mounted stop lamps and rear combination lamps for vehicles. Since the effect of issuing an alarm cannot be obtained, the filling pressure of carbon dioxide gas or nitrogen gas is preferably 1 Torr or less.

The intensity ratio of the minute emission spectrum is about 10% or less.

Further, if the inner diameter of the bulb 6 is less than 1.0 mm, the neon glow discharge lamp 4 becomes too small, the field that can be used as a light source is limited, and the strength becomes low.
If it exceeds 0.0 mm, the thinly-squeezed positive column causes a snake phenomenon and the discharge becomes unstable. Therefore, the inner diameter of the valve 6 is preferably in the range of 1.0 to 10.0 mm.

Furthermore, the neon glow discharge lamp 4 includes
Proximity conductor whose longitudinal direction is along the tube axis direction on the outer surface of the valve 6.
11 are closely formed. The proximity conductor 11 may be provided close to the valve 6. The proximity conductor 11 is configured by adhering a conductive tape made of an aluminum (Al) adhesive tape having a width of about 5 mm. In this case, in the range where the proximity conductor 11 made of a conductive tape is attached, the maximum corresponds to the valve length, and the minimum is that the end portions of the proximity conductor 11 are located within L = 50 mm from the tips of the electrodes 7 and 7, respectively. The length of the electrode 7,
It is provided so as to be located at a position L = 5 mm apart from the tip of No. 7 respectively.

If the proximity conductor 11 is formed so that the end of the proximity conductor 11 is separated from the tips of the electrodes 7 and 7 by more than L = 50 mm, the effect of lowering the starting voltage cannot be expected, and Flickering occurs due to the shaking of the sunlight column.
Therefore, the end of the proximity conductor 11 is L from the tip of the electrodes 7, 7.
= 50 mm or less. Preferably L = 1
It is within 0 mm, and ideally longer than the distance between electrodes.

As shown in FIG. 1, the neon glow discharge lamp 4 is connected to a high frequency oscillator 12 which is a lighting device, and is supplied with high frequency power of 20 kHz or more from the high frequency oscillator 12 to be lit. There is.

In the neon glow discharge lamp 4, the rated input is set to 12 W and the power input per arc length 1 cm is 0.5 W or less, that is, 12 W / 27 cm = 0.
It is 444 W / cm. Further, the neon glow discharge lamp is set so that the starting voltage Vs is 1.5 to 2.0 kV, the lamp voltage VL is 600 V, and the lamp current IL is 20 mA. Further, the lamp current IL is 1 mA to 1
By changing the value within the range of 00 mA, dimming becomes possible.

Then, as shown in FIG. 2, the neon glow discharge lamp 4 is housed in the reflector 2 such that the central axis of the bulb 6 coincides with or comes close to the focal position of the reflector 2. . It should be noted that when the neon glow discharge lamp 4 is housed, the proximity conductor 11 provided on the outer surface of the bulb 6 makes the reflector 2
Outer surface of the bulb 6 on the side opposite to the opening of the bulb, that is, the reflector 2
Store it so that it faces the back of the room.

Next, the operation of the above embodiment will be described.

When the neon glow discharge lamp 4 of the display device body 1 is supplied with high frequency power of 20 kHz or more from the high frequency oscillator 12, the neon glow discharge lamp 4 is lit.
The light emitted from the neon glow discharge lamp 4 is directly or reflected by the reflecting surface 2a of the reflector 2 to illuminate the display cover 3. For this reason, the display cover 3 is illuminated from the back surface, so that the entire surface is illuminated. In this case, the light emitted from the neon glow discharge lamp 4 is pink due to carbon dioxide gas or nitrogen gas mixed with the rare gas, and if the display cover 3 is also colored in red, it will be pink toward the front. It comes to surface-emit colors.

Therefore, as compared with the conventional red color, since it emits a pink color, the visibility of the on-vehicle display device body 1 that can be clearly discriminated from a far behind vehicle can be improved, and it is milder than the red color. You get a sense.

When a relatively large lamp current IL of 15 to 20 mA is supplied to the neon glow discharge lamp 4, the neon gas has a high filling pressure and therefore has a luminous intensity of 1.5 compared with the conventional neon glow discharge lamp 4. Since the light emitted from the neon glow discharge lamp 4 has a high luminous intensity, the luminous intensity of the display cover 3 is also increased, and the visibility from a distance is further improved.

Further, the neon glow discharge lamp 4 is
Although the positive column is narrowed and narrowed by increasing the filling pressure of the neon gas, the diameter of the bulb 6 is thin, so that the positive column is prevented from being distorted or shaken, that is, the snake phenomenon, and a stable discharge can be obtained. .

Furthermore, the neon glow discharge lamp 4 is supplied with high-frequency power of 20 kHz or more from the high-frequency oscillator 12 and is turned on, so that flicker can be prevented.

Since the filling pressure of neon gas is high,
It is possible to prevent the loss of neon during the life and improve the life characteristics. Also, the power input per 1 cm of arc length is 0.5 W
Because of the following settings, the load on the electrode is reduced, and the scattering of electrode material can be achieved. Therefore, the life characteristics were improved, and a life of 10,000 hours or more was obtained.

On the other hand, when the pressure of the enclosed gas is increased, the starting voltage is increased and the positive column is converged on the electrodes 7, 7, so that the positive column becomes unstable in the vicinity of the electrodes 7, 7 and flicker occurs. However, since the proximity conductor 11 made of a conductive tape is attached to the outer surface of the bulb 6, a positive column is induced between the one electrode 7 and the proximity conductor 11 at the time of starting,
This positive column grows to the other electrode, and the proximity conductor 11 promotes the discharge between the electrodes 7 and 7, so that the starting is facilitated and the starting voltage can be lowered.
Further, since the positive column near the electrodes is drawn by the adjacent conductor 11,
The positive column is stable and flicker can be prevented.

In the above embodiment, when the proximity conductor 11 is not in close contact, the discharge start voltage can be lowered as the proximity conductor 11 is closer to the entire length of the bulb 6.

The proximity conductor 11 is not limited to the use of a conductive tape made of an aluminum adhesive tape,
The outer surface of the valve 6 may be coated with a conductive paint or a wire may be attached thereto.
Does not have to be in close contact with the outer surface of the valve 6, and may be slightly separated.

In the display device main body 1 having such a structure, the proximity conductor 11 attached to the bulb 6 is formed on the outer surface of the bulb 6 on the side opposite to the opening of the reflector 2 so that light traveling forward can be obtained. The rate of getting in the way of is reduced. If the proximity conductor 11 is formed of a reflective member such as an aluminum tape, it reflects light traveling backward, so that the light can be effectively used.

[0057]

According to the neon glow discharge lamp of the first aspect, since the rare gas mainly containing the neon gas having a high filling pressure is filled at the filling pressure of 30 to 120 Torr, the luminous intensity is improved and the carbon dioxide is added to the rare gas. Since at least one of the gas and the nitrogen gas is mixed at a filling pressure of 1 Torr or less, even if the filling pressure of the neon gas is high, the positive column will not be restricted and will tend to diffuse, and the emission color will be slightly pink. Visibility can be improved. If it is higher than 1 Torr, the whiteness becomes strong and the desired chromaticity cannot be obtained.

According to the neon glow discharge lamp of the second aspect, since the rare gas mainly containing the neon gas having a high filling pressure is filled at the filling pressure of 30 to 120 Torr, the luminous intensity is improved and the fine gas is reduced to 450 to 550 nm. Since it has an excellent emission spectrum, even if a high neon gas filling pressure is applied, the positive column does not tend to be narrowed and tends to diffuse, and the emission color becomes slightly pink, so that the visibility can be improved.

According to the neon glow discharge lamp of claim 3, in addition to the neon glow discharge lamp of claim 2, since the intensity of the minute emission spectrum is 10% or less of the peak spectrum, the emission color is Visibility can be improved because it becomes slightly pink. When the intensity of the minute emission spectrum is higher than 10%, the whiteness becomes strong and the desired chromaticity cannot be obtained.

According to the neon glow discharge lamp of claim 4, in addition to the neon glow discharge lamp of any one of claims 1 to 3, the bulb has an inner diameter of 1.0 mm or more.
Since it is 0.0 mm or less, the snake phenomenon of the positive column can be prevented and stable discharge can be achieved.

According to the neon glow discharge lamp of the fifth aspect, in addition to the neon glow discharge lamp of any one of the first to fourth aspects, a proximity conductor is provided on the outer surface of the bulb along the tube axis direction. Due to the discharge inducing action of the adjacent conductor, the starting voltage can be lowered and the starting performance can be improved.
Since the adjacent conductor is provided along the tube axis direction of the bulb, the positive column can be attracted, the snake phenomenon of the positive column can be prevented, and stable discharge can be performed.

According to the neon glow discharge lamp of the sixth aspect, in addition to the neon glow discharge lamp of the fifth aspect, the proximity conductor is formed so that the length is equal to or less than the bulb length, and the end portion of the proximity conductor is separated from the electrode tip. Since it is formed within a region of 50 mm or less, the startability can be surely improved and the oscillation of the positive column near the electrodes can be prevented.

According to the neon glow discharge lamp of the seventh aspect, in addition to the neon glow discharge lamp of the fifth or sixth aspect, the proximity conductor is formed by adhering a conductive tape to the outer surface of the bulb, so that the structure is simple. Can be easily assembled.

According to the display device of claim 8, the neon glow discharge lamp according to any one of claims 1 to 7 is housed in a substantially gutter-shaped reflector extending along the tube axis direction. A high display device can be obtained.

According to the display device of the ninth aspect, in addition to the display device of the eighth aspect, since the proximity conductor is formed on the outer surface of the bulb opposite to the opening of the reflector, the proximity conductor is irradiated forward. It is possible to reduce the ratio of blocking light and prevent deterioration of visibility.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a neon glow discharge lamp showing an embodiment of the present invention.

FIG. 2 is an axial cross-sectional view showing the display device main body of the above.

FIG. 3 is an exploded perspective view of the above.

FIG. 4 is a graph showing spectral characteristics of the above neon glow discharge lamp.

[Explanation of symbols]

 1 Display device body 2 Reflector 4 Neon glow discharge lamp 6 Bulb 7 Electrode 11 Proximity conductor

Claims (9)

[Claims] 1. A neon glow discharge lamp in which a rare gas composed mainly of neon is enclosed in a bulb whose electrodes are sealed at both ends, wherein the rare gas has a neon gas enclosure pressure of 30 to 120 Torr.
The neon glow discharge lamp is characterized in that at least one of carbon dioxide gas and nitrogen gas is mixed at a filling pressure of 1 Torr or less. 2. A neon glow discharge lamp in which a rare gas mainly containing neon is enclosed in a bulb whose electrodes are sealed at both ends, wherein the rare gas has a neon gas enclosure pressure of 30 to 120 Torr.
A neon glow discharge lamp having a minute emission spectrum at 450 to 550 nm. 3. The neon glow discharge lamp according to claim 2, wherein the intensity of the minute emission spectrum is 10% or less with respect to the peak spectrum. 4. The inner diameter of the valve is 1.0 mm or more and 10.0.
The neon glow discharge lamp according to claim 1, wherein the neon glow discharge lamp has a diameter of not more than mm. 5. The neon glow discharge lamp according to claim 1, wherein a proximity conductor is provided on the outer surface of the bulb along the tube axis direction. 6. The neon glow according to claim 5, wherein the proximity conductor has a length equal to or less than the bulb length, and the end portion of the proximity conductor is formed within 50 mm from the tip of the electrode. Discharge lamp. 7. The neon glow discharge lamp according to claim 5, wherein the proximity conductor is formed by bonding a conductive tape to the outer surface of the bulb. 8. A neon glow discharge lamp according to claim 1, wherein the neon glow discharge lamp is housed, and the neon glow discharge lamp is formed in a substantially gutter shape extending along a tube axis direction of the neon glow discharge lamp. And a reflector. 9. When the neon glow discharge lamp provided with a proximity conductor is used, the proximity conductor is formed on the outer surface of the bulb opposite to the opening of the reflector. Display device.