JPS5810789A - Display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device using a discharge lamp, and particularly to a discharge lamp display device that is small and lightweight and suitable for displaying characters, numbers, symbols, etc.

The 9th day device uses neon discharge lamps 41 old electric lamps, and the luminance of the discharge lamp itself is relatively high when it emits light, and the supplied gas and the tube wall of the discharge lamp KI! Various colored lights can be obtained by appropriately selecting the fluorescent paint applied, so it has been put into practical use more widely than before in D7D/4-bunch boats.

As Hakuchi explains, display devices that use discharge lamps require an AC power source with a high power supply voltage of several thousand volts or more and a high pigeon wave number of more than 1 in tens of volts or more when the discharge lamp discharges and emits light. It is not foolish to require a large-scale power supply wIV stage 5, including a round-trip starting circuit, but it is also essential to take various measures to prevent electric shock accidents caused by high-voltage power supplies.

Therefore, a display device using this type of discharge lamp is usually installed outdoors and used as a display device mainly for advertising purposes.

On the other hand, for example, Japanese Patent No. 127842 filed in 1975, filed earlier by the applicant of the present invention, discloses a novel discharge lamp that is an improvement over the conventional discharge lamps described above.

That is, the 9-discharge lamp disclosed in Patent Application No. 127842 of 1980 is designed to have two electrodes, one of which is provided inside the glass tube, and the other electrode is provided outside the glass tube. Since the lamp is configured to use the glass body as a dielectric material, it is possible to use an AC power source with a voltage of about several hundred volts, a voltage with a pigeon wave number of about 1Il- to several 10x1, and a relatively low shoulder wave number. By using this type of discharge lamp, it is possible to obtain a display device that is small in size and suitable for displaying letters, numbers, symbols, etc. Can be done
For example, in the case of this type of display device, +1
On the other hand, the disadvantage is that the lighting pattern is monotonous and lacks a decorative display effect.

An object of the present invention is to provide a display device with a simple structure that facilitates dotted carpet display. In addition to eliminating the drawbacks of the conventional LED lamps, for example, the above-mentioned discharge lamps can be used for product guidance or lighting mainly indoors, which can emit light even with a relatively low voltage and a relatively low power supply. The effect of displaying product prices, etc., and displaying various information inside and outside the vehicle using the automobile batch 9 etc. as a power source is further increased to 1llIF.
The purpose is to make advertisements, advertisements, decorations, etc., using this display device stand out.

That is, the display device according to the present invention has a display device V.
A round discharge lamp for displaying letters, numbers, fI number, etc. is provided on the surface plate of the display unit that can be removed from the display unit.When the display unit is attached to the display panel, the nuclear display Multiple power supply boards placed on the panel and each of these power supply boards electrically! II! DC power and control signals from a blinking power supply device, such as a power supply device and a control signal generator, are supplied to the display unit through the conductive piece on the connected dice display unit, and the control signals can be used to control the DC power interruption and connection. The waveform is externally compressed by an external pressure transformer provided in the display unit and then supplied to the front and rear lights, and a control signal is controlled intermittently at regular intervals via the W1 electric plate and conductive piece. For example, by arranging a plurality of display units in appropriate combinations on the display spring y, it is possible to display various information. By causing the discharge lamp to discharge and emit light in response to a control signal that is intermittently supplied, it is possible to display the information content by the desired display unit in a blinking manner. two rounded and appropriately arranged circuits having a phase relationship and configured to selectively supply a control signal that is intermittent at regular intervals to the external pressure transformer via the plurality of power supply plates and conductive pieces; II.
According to the above-mentioned method and the dice display device of the present invention, the supply of the rounding control signal for the conductive piece of the dice play unit and the flashing display exclusively for the information machine is done through the power supply board. Equipment! Since there is no need to provide special means for blinking display, it is very advantageous to reduce the weight and cost of the display unit itself.

Hereinafter, the configuration of an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a display unit 1, on which an alphabetical character E is displayed by arranging four linear discharge lamps P on a surface plate 2 thereof. The discharge lamp P includes, for example, the discharge lamp disclosed in the above-mentioned Patent II No. 127842 of 1981, which includes two)'1EWP-1. P-2
Of these, one (DtlIP-1a) is provided inside the glass tube or short as shown in the figure, and the other electrode (DtlIP-1a) is formed as a transparent electrode over the entire area outside the glass tube. In particular, if this type of discharge lamp P is used, two electrodes are provided facing each other at both ends of the glass tube as in the past, and the discharge lamp P has a structure similar to that of a conventional neon lamp. Compared to an electric lamp, the discharge lamp P can be made to discharge and emit light by using a power source that is relatively low in terms of voltage and frequency, and during such discharge and light emission, the entire glass can be made to discharge and emit light with a substantially uniform surface. .

FIG. 2 shows the back side of the display unit 1 shown in FIG.
Coupling means 4, 5 such as magnets for attachment and coupling to
and conductive piece 6.7.8.9! ! A switch 10.11 is provided. When the display unit 1 is placed on the display panel 5, these conductive pieces 9 are connected to a blinking power supply device for causing the discharge lamp P to blink and discharge light, in this case, a DC power supply and control from a high-speed power supply device. The switches 10 and 11 are for relaying control signals from the signal generator.The switches 10 and 11 are round switches that turn on and off the control signals applied to the display unit 1 through the conductive pieces 8 and 9, respectively.

FIGS. 5 and 4 show the display panel 5, in which the surface of the display spring A15 has vI! A9 and 141 to the conductive pieces of Kidaysde V and 1! Round power supply plates 14, 15 that are in contact with each other and supply DC power from the power supply device f12 and control signals from the control signal generator 15.
．． 16.17 are provided.

The power supply device 12 is applied to the conductive pieces 6, 7 of the dice play unit 1 through the pair of power supply plates 14, 15 with a voltage of several V, for example 3 to 12 Vi! The control signal generator 15 is a round device that supplies a low-voltage DC power source with a high
6.15 or 17.15 to the conductive pieces 8, 7Ij of the dice play unit 1! Or, after 9 and 7, the number K1-1.
．． For example, it is for supplying a control signal having 1f4 wave numbers of 5 to 20 KHE.

FIG. 5 shows the display unit 1 mounted and connected on the display panel 5, and shows conductive pieces 6.7.
Since the power supply plates 14, 15, 16 and 17 are made of materials with good conductivity and magnetization, such as galvanized iron plates and tinplate, magnets 4 and 50 are integrated with the conductive plates 6 and 7 as a coupling means. The dice play unit 1 can be adsorbed onto the display panel 5 by magnetic action.

Display panel 3 of such dice play unit 1
The round power supply plate 1 prevents the display unit 1 from falling due to external force caused by an external track impact etc. being applied to the display spring A/3 when it is attached to the display spring A/3.
4, 15.1 to 17, the power supply plate 14.15 that is coupled to the conductive piece 6.7 has a slightly wide groove 18.1, which is convergent in the height direction of the conductive piece 7. conductive strips 8, 9 which are preferably formed in contacting engagement with the feed plate 16, 17;
For example, as shown in FIG. 86, in order not to obstruct the adhesion between the power supply plate 14.15 and the conductive piece 6.7 via the magnets 4 and 5, As mentioned above, it is preferable that the conductive pieces 8 and 9 themselves are always urged in the protruding direction, that is, in the direction of the missing mark A, by the elastic force of the spring 200.

Figure 117 shows the circuit configuration of the entire day device.The control signal generator 115 is connected to the day device
To the power supply plate 1 of y5, through 17, Display Enits F!
This is for generating a rounding control signal to be supplied to the eighth
Figure, l! As shown in Fig. 9, the pulse signal of several KF&I (
The first pulse signal that produces Figure 9 (see slope)! 1a
9 (to), (C)
fJ/IP2 pulse signal generator 2 that generates
2 and the pulse signal generators 21 and 22, and an AND gate circuit 2424 which alternately generates nine pulse signals by cutting them off at regular intervals as shown in FIG. In Fig. 8, input terminals 25 and 26 are power input terminals connected to the power supply 12 in Fig. 7, and output terminal 28 is a control signal output terminal connected to the power supply 12 in Fig. 7. It is connected to the power supply plates 16 and 17 of the day display panel 5 shown in the figure.

The control signal from the control signal generator 15 is transmitted to the power supply plate 1.
417 Furthermore, the conductive piece a9 provided on the display unit 1, the switch 10゜11 that can be selectively operated (@2, see the darkness) and /I#'-)'29.50tM Tetwon V Star 3
1. The step-up transformer 52 is a booster transformer 51
The discharge lamp POt & electroluminescence continues with the control signal supplied via #lIN! It is a round type that applies external pressure with sufficient voltage to
When the conductive pieces 6 and 7 of the display unit 1 are connected in the upside down direction to the power supply [14 and 15 on the display unit 1] using a diode for preventing backflow, the transistor jf51 etc. This is specifically provided to prevent damage to the circuit elements.

In Fig. 10), the transformer 5) passes through the conductive piece 8 of Fig. 7, the switch 10, and the diode 29.
Output signal II of the control signal applied to xix51! Figure 10) shows the output signal waveform of the control signal applied to Totsuji be. FIG. 10 (0) shows a situation in which only switch 10 among the switches 10.11 is on, and the discharge lamp P is lit every T1 period in response to the control signal shown in FIG. 10). It is. Figure 10(d)
When only the switch □ 11 of the switches 10.1-1 is in the ON state, T is turned on in response to the control signal shown in FIG. 10 (to).
This is to accommodate the situation in which the discharge lamp P is lit every iJl1. Figure 10 (to) shows a situation in which both the switches fjO and ji are on and the discharge lamp P lights up continuously in response to the control signals shown in Figure 10 (→, (b)). Note that in FIG. 10 (0), (φ, (@), the shaded area indicates that the discharge lamp P is in the lighting state.

FIG. 11 shows details of the output signal waveform of the pulse signal (FIG. 9 (~#[)) which is a control signal generated by the first pulse signal generator 21 shown in FIG. 8. (to) is a pulse signal in the case of reducing the luminance of the discharge lamp P by reducing the pulse width t of the pulse signal shown in FIG. Figure 11 shows the output signal waveform of (9 is shown in Figure 11)
The pulse gt of the pulse signal shown in is doubled, that is, the pulse width is doubled.
The output signal waveform of the pulse signal is shown in the case where the luminance of the discharge lamp P is increased by 1 by setting the time to t.

Figure 12 shows the details of the output M waveform of the control signal generated from the 1llll# signal generator-15 shown in Figure 8 (Figure 9 middle, (0 and Figure 10 (→, 2)). 1st
FIG. 2 (φ(d) is the period TI controlled by the second pulse signal generator 22 (see FIG. 8) of the control signal shown in FIG. 12 (→(b)). Ding s/s
FIG. 12 (.
) and (f), the blinking synchronization of the discharge lamp P is greatly increased by doubling the intermittent controlled period 1 of the control signals shown in FIGS. The output signal waveform of the control signal in this case is shown.

Figure 15 is the pond 1 of display unit 1 shown in Figure 2! 114 (Fig. 114←), (b) *m so that it can be inserted and removed from the display unit 1' as shown in Fig. 2.
This is one configuration of the display unit 1 shown in FIG. 2. That is, in FIGS. 15 and 14 (at the slope, the conductive piece FI, ?/ is supported by the elastic force of the spring 200 and the arrow A
When the conductive piece d is pressed in the opposite direction and rotated, the bottle 54 on the conductive piece eve engages with the footer plate 35, and the conductive piece d
i as shown in Figure 14 (to) Ill! It can be done.

Particularly when placed under such a condition, the conductive piece should be
Since the state of 2) has been displaced by L, even if the display unit is attached to the display panel 5, it will not be electrically connected to the conductive piece Kt/ and the power supply plates 16 and 17 facing it. Therefore, it becomes impossible to supply the control signal to the display unit 1'.In particular, as shown in FIG.
According to the actual form shown in FIG. 4, the conductive piece has four switch functions, so the switches 10 and 11 in FIG. 2 can be removed.

The display device according to this embodiment has the above-described configuration, and when displaying predetermined information, first selects the display unit 1 that displays characters, numbers, symbols, etc. necessary for displaying the information. After that, these display units 1 are attached to the fifth display panel 3 shown in FIG.
At this time, the magnets 4 and 7 integrated with the conductive pieces of the display unit 1 are arranged on the top.
50 Due to the magnetizing action, the conductive pieces 6 and 7 become display bars *#SO
The display unit 1 will be placed on the display spring A15 in order to be tightly engaged with the power supply plates 14, 15. Also, at this time, the conductive piece 6 of the display unit 1.
7.8. As shown in FIG. 5, the power supply plates 14, 15, 16, and 17 on the display spring A15 come into contact with each other. Now, the switch 10.11 shown in FIGS. 2 and 7
If both of the power supply plates 14.15 and 14.1 are turned on, cliff current drift from the power supply 12 will be removed from the power supply plates 14.15 and 14.1.
The control signal from the control signal generator 15 (FIG. 9(d), (・)
and Figure 10 (&), (to) reference) are power supply plates 16.17
and a conductive piece 8 that contacts and engages these power supply plates 16°17,
Switch 10.1 on display unit 1 at 9c
1. The diode 29.50 (?) is supplied alternately to the pace terminal of the transistor 51 at fixed intervals of 111TI.In other words, there are four control power supplies on the primary winding side of the external pressure sensor 52 in Figure 7. The round discharge lamp P to which is supplied is shown in Figure 10 (
→ It discharges light continuously and displays predetermined information.

On the other hand, one of the switches 10 and 11 provided in the display unit 1 shown in FIG. 2 is turned on and the other switch is turned off.
For the pace 1, only one of the control signals shown in FIG. 10
As shown in Figure (d), in order to display the intermittent Kfi electroluminescence information contents in a blinking manner, it is possible to display the information contents separately from other SS lighting (therefore, the information contents being displayed).In addition, the blinking display of such information contents In this case, the phase of the control signal applied to the external pressure transformer 52 is exactly opposite when the switch 10 is turned on and the switch 11 is turned off, and when the switch 10 and the male switch 11 are turned on. The discharge and light emission are alternately performed during each period TI.It is also possible to change the information content by selecting the switches 10 and 11.

Further, if both the switches 10 and 11 are turned off, no control signal is supplied to the display unit 1.

Therefore, at this time, the discharge lamp P is maintained in an extinguished state and does not display any information.

By the way, when performing the above-mentioned nine information display, @1 of the control signal generator 15 as shown in FIGS.
By changing the pulse width of the control signal generated by the pulse signal generator 21 (the pulse signal generator 21), that is, its breath-to-time ratio, the brightness of the discharge lamp P during discharge light emission can be controlled to be increased or decreased as desired. can.

Also, as shown in Figures (C), (d), and (f) K, the control signal generator 15 is provided with a control signal generator 15 to appropriately change the pulse width of the pulse signal from the second pulse signal generator #s22. By doing so, the blinking synchronization of the discharge lamp P can be controlled to be increased or decreased arbitrarily.

Also, the nine days shown in Figure 15 and Figure 14:L
! By pressing the V on the conductive piece like a foot' and rotating it, display 12 knits 1' on the conductive piece.
Also when using a conductive piece s', ? By selecting ', you can get the same effects as described above.

According to this display device, the second
By selecting the switches 10 and 11 shown in Figs. 15 and 114, or by selecting the conductive piece itself as shown in Figs. This is particularly advantageous in displaying information because the blinking tie identification can be changed in various ways.

In the above-mentioned embodiment, only the case where a rectangular wave pulse signal is used as the control signal has been described, but any type of control signal such as a triangular wave signal, a sawtooth wave signal, a sine wave signal, etc. can also be used. can be used in exactly the same way.

In addition, in the above-mentioned practical example, a system is shown in which two sets of power supply plates and conductive pieces are used to perform blinking control at fixed intervals and alternate blinking control. It is also possible to perform various a reduction controls such as runner-up relative ms, etc.

FIG. 15 is an electric circuit diagram of another 5N power example of the present invention, in which each power supply plate 14 of the display l (ne A15) is shown in FIG.
, 16, and 15 are connected to the ring counter 36 to control the on/off of the switching elements 57, 58, and 59, and are energized to each other as shown in the waveforms shown in the sections 16, 17, and 15 of each power supply plate in Fig. 15. Power supply device 1 is a power supply with different phases.
At the same time, the direct current power is supplied from No. 2, and the direct current power is placed on the No. 9 DeV panel A15.
through the respective conductive strips 6.8.9.7 and switches 41.42 on each display (40).
．． 45 selected and circular embroidery DC-mu C inver p44,
In this case, Totsun vX meter 45 and step-up transformer 46 (D
-DC-AC of masochistic oscillator consisting of next fll1 winding etc.
The light discharge of the discharge lamp P is supplied to the inverter 44, and the light discharge of the discharge lamp P is supplied from the external pressure transformer 46! And IIW! IklI wave lk (5~50KH*), W pressure (200~
As a result, the discharge lamps P on each display unit 40 are connected to each switch 41, 42 .
According to the selection of 45, blinking between arbitrary phases, continuous lighting or I! In this case, the number of power supply plates 14, 16, 17, 15 for supplying power with different phases can be particularly reduced, but the structure, operation, and effects are almost the same as in each of the above embodiments. It is.

FIG. 16 is also another example of the present invention! This is a circuit diagram of an electric power 4IC according to an embodiment, in which the power supply unit W112 in FIG. 15 is replaced with an AC power source vsm11, and the display unit 40 in FIG. 4σ and Yoshinoki are the first in terms of composition, action, and effect.
This is almost the same as the real rights example in Figure 5.

Incidentally, in the electric circuit shown in FIG. 16, if the voltage of the power supply device 1 is sufficient to sustain the continuous discharge of light from the discharge lamp P, the external pressure transformer 46 can be omitted from each display unit 40'.

[Brief explanation of the drawing]

1111! Figure 2 shows an external view of a display unit 1 used in a display device according to an embodiment of the present invention. Figure 5, #! Figure 4 shows the external view of the display spring A15 and its flat rTJ diagram, which is manufactured by Marugame. FIG. 5 is a state diagram showing a state in which the display unit 1 is attracted and engaged with the display spring A15, with a partial cross-sectional view. *Figure 6 shows the structure of the conductive pieces 8 and 9 of the display spring F1 shown in Figures 1 and 2 with a partial cross-sectional view. FIGS. 7 and 8 are schematic electrical circuit diagrams of the display device. FIG. 9 can accept the output waveform diagram of each line of the electric circuit diagram shown in FIG. 8. FIG. 10 shows point carpet control according to the control signal, or tl! FIG. 2 is an explanatory diagram for explaining a light emission situation of a discharge lamp whose lighting is controlled according to the embodiment. FIGS. 11 and 2 show output signal waveform diagrams of control signals. Figure 13 is shown in Figure @2. ) shows an external view of another embodiment of the invention. FIG. 14 shows the structure of the conductive piece in the display unit shown in FIG. 1s13 with a partial sectional view. FIGS. 15 and 16 are electrical circuit diagrams of other embodiments of the present invention. 1.1-40,4σ...Display unit 6.7
,8. 9. G... Conductive plate 12, 1 G... Power supply device 13- Control signal generator 14, 1 16.17-...
Power supply plate 52.46...4 voltage) Lance 56-・Rifuguka Kenta 5 Otsuka, 59・-4 Itching element P-・Discharge lamp Patent applicant Seizen Hato's representative Patent attorney Oka 1) Hidehiko Figure 1 2 Figure 1) ρ〇１ノ～ノ－１まv++/−１−１N−

Claims (1)

[Claims] Discharge lamps for displaying characters, numbers, symbols, etc. are provided on the surface plate of the display unit, and when the display unit is attached to the display device V, the discharge lamps are arranged on the display device V. Multiple power feeds 41! And each of these power supply plates is electrically connected to the display unit through a conductive piece on the display unit, and the discharge lamps selected for each power supply plate are connected to the display unit in the pressure chamber determined by the power supply plate. 411I shall be configured to supply the output from the flashing power supply device for causing the flashing power supply device to switch on and off, and to supply the output from the nuclear flashing power supply device to the discharge lamp provided in the display unit. A display device characterized in that a display device is controlled according to an output from a power supply device. (!) In the display device according to claim (1), the blinking power supply device is constituted by a single current power source and a control signal generator, and when the display unit is attached to the display panel, Direct current power and control signal generator from the power supply device are supplied to the display unit through several power supply plates arranged on the dice delivery car and conductive pieces on the display unit that are electrically connected to each of these power supply plates. supplying control signals from
The control signal is boosted by a booster provided in the display unit and then supplied to the discharge lamp, and the control signal to be sequentially controlled among the plurality of boards is supplied to the discharge lamp. 1. A display device characterized in that the discharge lamp is controlled to decrease by q in accordance with the control signal by being configured to supply external pressure to an external pressure. (3) Display described in claim (1) *
I [K: Now, the point 112 solder 1 supply device is composed of a DC power supply and a control M number generator, and when the display unit is attached to a display panel, a plurality of wires arranged on the display panel A DC power supply from the ti1 device and a control signal from the control signal generator are supplied to the display elements through the two power supply plates and the conductive pieces on the display unit that are electrically connected to each of these power supply plates. , the nuclear control signal is boosted by an external pressure transformer provided in the display element and then supplied to the discharge lamp, and among the plurality of power supply plates, at least -2111 and The discharge lamp is controlled by configuring to selectively supply the external pressure transformer with a control signal that is connected to each of these power supply plates and controlled to be disconnected at regular intervals via nine conductive pieces. A display device characterized by controlling continuous lighting or blinking according to selective supply of signals. (4) In the display device according to claim (1), the point-connection power supply 4i is composed of a DC power supply and a control signal generator, and When mounted on a display panel, the display unit receives power from the power supply through a plurality of power supply plates disposed on the display panel and conductive pieces on the display unit that are electrically connected to each of these power supply plates. A control device is supplied from a DC power source and a control signal generator, and the cough control signal is boosted by an external pressure transformer provided in the display unit and then supplied to the discharge lamps, and the plurality of A control signal is selectively supplied to the external pressure transformer through at least two of the power supply plates and nine conductive pieces connected to each of these power supply plates to be periodically disconnected at regular intervals. 1. A display device according to claim 1, wherein the discharge lamps of a plurality of display elements mounted on a display panel are controlled in a sequential manner in accordance with the selective supply of the control signal. (6) In the display device according to claim (4), the control signal is controlled intermittently at regular intervals via the power supply plates 211I and the conductive pieces connected to each of the power supply plates. By configuring the external pressure to be selectively supplied to the display panel, a plurality of discharge lamps are connected to the display panel in response to the selective supply of the control signal. The display device is characterized in that the display device performs blinking control alternately. (.) In the display device according to claim (1), the blinking power supply device is configured to supply an intermittent and continuous DC power source to each current plate separately, which repeats on and off in a nine-shaped cod pattern with different cycles. - If it is a continuous DC power supply device, when the display unit is attached to the display vehicle P, it will be placed on the 74 displays V and electrically connected to nine power supply boards and each of these power supply boards. Intermittent and continuous DC power supplies with different cycles are supplied from the intermittent and continuous DC power supply equipment to each display element through conductive pieces on the display unit, and the intermittent and continuous DC power supplies are provided in the display element F. A DC inverter and an external pressure transformer are used to increase the voltage and then supply it to the TA light on the display unit.
A display device characterized in that the discharge lamp is controlled to blink according to the on/off cycle of the continuous DC power source. 7) In the display device according to claim (1), the blinking power supply device is supplied with an intermittent/on-off alternating current power source that is repeatedly turned on and off at different intervals to each power supply plate. In addition to being a unified AC power supply device, when the display element is attached to the display panel, there are a plurality of power supply plates arranged on the nuclear display bar and a display unit electrically connected to each of these power supply plates. After supplying intermittent and continuous alternating current power with different cycles from the intermittent and continuous alternating current power supply device to the display unit through the conductive piece of the A display device characterized in that the discharge lamp is supplied to a discharge lamp on the display unit, thereby controlling the discharge lamp to blink in accordance with the on/off cycle of the intermittent AC power source. (8) In the display device described in claim (1), the blinking power supply devices are connected to each other! An intermittent/continuous AC power supply HWIR that supplies intermittent/continuous AC power with a discharge voltage or higher that repeats on and off in a circular shape to each power supply plate body.
Then, when the display unit is attached to the display panel, a plurality of power supply plates installed on the display panel and a conductive piece on the display V4x unit that is electrically connected to each of these power supply plates are used. By configuring that the display unit 4F is supplied with intermittent and continuous alternating current power supplies having mutually different cycles from the intermittent and 119 current power supply devices, and the intermittent and continuous alternating current power supplies are supplied to the display unit upper discharge lamp. A display device characterized in that a discharge lamp is controlled to blink in accordance with the on/off cycle of the intermittent/continuous AC power source.