JPS6355835A - Gas discharge display device - Google Patents

Abstract

PURPOSE:To reduce the number of driving electrodes and to decrease the driving voltage, by positioning an insulating substrate which has plural electrode couples and an insulating substrate which has plural belt-formed electrodes arranged parallel, opposing each other making the belt-formed electrodes crossing square each other. CONSTITUTION:Insulating substrates 1 and 5 are made of a soda glass, and the insulating substrate 1 is a back substrate while the insulating substrate 5 is a front substrate. On the insulating substrate 1, belt-formed electrode couple 2A and 2B to be a back electrode, a dielectric coverage membrane 3, and a partition wall 4 are superposed in order. On the other hand, on the insulating substrate 5, transparent electrodes 6, a dielectric coverage membrane 7, and a partition wall 8 are superposed in order. Then the insulating substrates 1 and 5 are opposed each other, and composed to make one side electrode 2A of the belt-formed electrode couple 2A and 2B which are arranged parallel and at the same pitch, opposed to the partition wall 8. After that, the periphery is sealed airtight, and neon gas is poured therein. Thereby, the driving voltage can be decreased and the number of the driving electrodes can be reduced.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a gas discharge display device, and in particular to an external electrode type display device that realizes arbitrary display of characters, figures, etc. using a plurality of minute discharge display cells. The present invention relates to a gas discharge display device.

[Conventional technology]

Conventionally, this type of externally polarized gas discharge display device has two insulating substrates each having a plurality of strip-shaped electrodes covered with a dielectric film and each of which is separated by an insulating partition wall. It was realized by emitting inert scum, such as neon, into multiple discharge spaces formed by the strip-shaped electrodes facing each other. For driving, a discharge space corresponding to a desired display pattern was selected, a rectangular wave voltage was applied through the strip electrode, and neon gas was discharged and emitted.

[Problem that the invention seeks to solve]

The above-mentioned conventional gas discharge display device requires a large number of strip electrodes (for example, 600 pixels, vertically) because the intersections of the strip electrodes correspond to display pixels; Since the drive voltage of the display device requires a high voltage with an amplitude of about 200V to 300V for rectangular wave alternating current shaping, the drawbacks are that the scale of the center shell and the drive circuit become large.

Therefore, compared to the conventional gas discharge display device, the present invention has the original content that it is possible to reduce the number of drive electrodes and the drive voltage, and the scale of the drive circuit of the gas discharge display device can be reduced. A gas discharge display device based on a new operating principle of fi! [This is what is provided to '.

[Means for solving problems]

The uninvented gas discharge display device includes an insulating substrate having a plurality of electrode pairs each having two strip-shaped electrodes arranged in parallel, and an insulating substrate having a plurality of strip-shaped electrodes arranged in parallel. , each other's strips! After making the poles face each other so that they are perpendicular to each other, and the strip-shaped electrode on one side of the electrode pair facing the insulator@wall of the other insulator substrate, an inert gas is hermetically sealed between the two insulator substrates. It has a fixed structure.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a perspective view showing the structure of an embodiment of the present invention.

A soda glass plate is used as the insulator substrate 1.5, the insulator substrate 1 is a back substrate, and the insulator substrate 5 is a front substrate.

On the insulator substrate l, there is a pair of band-shaped electrodes 2, which serve as back electrodes. Dielectric coating film 3. The partition walls 4 are sequentially stacked.

On the other hand, a transparent electrode 6 is placed on the insulator substrate 5. Dielectric covering film 7. The partition walls 8 are sequentially stacked. Next, the insulator group'&l・
A pair of strip-shaped electrodes 2 arranged parallel to each other at equal pitches, facing each other.
As shown in FIG. 1, one pair of electrodes was left facing the partition wall 8, the surrounding area was hermetically sealed, and neon gas was injected.

To give an example of the dimensions of this embodiment, the first pair of strip-shaped electrodes 2 consists of two strip-shaped electrodes of 80 μm@ and a strip-shaped electrode 2B of 100 μm width arranged in parallel with a gap of 70 μm, and the pairs separated.
These were formed by sputtering aluminum at equal intervals with a pitch of 400 μm. On the other hand, the transparent electrodes 6 are formed by chemical vapor deposition using a material in which antimony is added to tin oxide, and the electrode pitch is 400 μm. Dielectric electrode coating films 3 and 7 are made by thick film printing of a paste of low melting point lead glass powder dispersed in an organic binder to a film thickness of 5 to 1 mm.
It is formed to a thickness of 0 μm. A black colorant is added to the dielectric coating film 3 formed on the back insulator substrate l to enhance display contrast.

The partition walls 4 and 8 were formed by thick film printing using aluminum oxide as a main component, low melting point lead glass as a binder, and a paste made by mixing a powder material with a black coloring agent and an organic binder. This film thickness is 40-60/jffl
Demeru. The partition walls 4 and 8 serve to maintain a gap of about 100 μm between the opposing strip electrode 2 and transparent electrode 6 to form a discharge space. In addition, the partition walls 8 serve to prevent the discharge generated between the band-shaped electrode pair 2 and the transparent electrode 6 from spreading along the band-shaped electrode pair 2 and the transparent electrode 6, that is, to prevent crosstalk. Furthermore, since it is black, it also has the effect of increasing the contrast of the display.

Next, the operating principle of the present invention will be described. A rectangular wave voltage is applied so that the two strip electrodes and the transparent electrode 6 are in opposite phase,
The neon gas filled in the discharge space formed by the two band-shaped electrodes and the transparent electrode 6 is maintained in an excited state below the threshold value of discharge initiation [aE].

A discharge is induced between the electrode 6 and the two strip electrodes.

This operation is achieved because the two strip electrodes and the transparent electrode 6 are obliquely opposed to each other, so that the discharge threshold voltage is increased.

Utilizing this operation, the rectangle e, t applied to the strip electrode 2B
8E is sequentially scanned and a voltage waveform sufficient to excite the neon gas filled between the two strip electrodes is applied to the transparent electrode 6 at an appropriate timing to obtain the desired display pattern.

As a specific example of the voltage, the pair of strip electrodes 2A and 2BK have a rectangular wave with a peak value of 90 V to 180 V relative to the ground, and the transparent electrode 6 has a rectangular wave with a peak value of 10 V to 100 V.

Figure 2 shows 400 lines realized by applying the present invention.

FIG. 2 is a configuration diagram showing the configuration of electrodes of a graphic display gas discharge display device having 640 columns of pixels.

In Fig. 2, s
l and Ylt Yl and y2°°°Y1 and Y2O5Y2 and y
A total of 400 pairs of electrodes of l, . . . , Y2O and Y2O correspond to the strip electrode pair 2 in FIG. 1 electrode Yl
-Y2o corresponds to the strip electrode 2B, and electrodes y1 to y2o correspond to the two strip electrodes. Therefore, by applying the rectangular wave voltages shown in 31st to (C) to the electrodes constructed as shown in FIG. 2, a graphic display of 400 x 640 pixels can be obtained. In this example, the electrode Y1
~Y20 is selected ((JN) state and shake'%s 200V
+ 7 F 50% *Round tIIL A rectangular i't- of several IMHz is applied, and it is grounded in the non-selected (OFF) state. Also, the electrode)'t-)'2oK is selected ((JN
) state, the radius of the same phase as the electrode Yl""'Y20 is 180■
・Apply a square wave with 50% duty and a frequency of IMHz, and ground in the non-selected ((JFF) state.Furthermore, the electrode
1-wx54Q Vc is the electrode Y1~ in the selected (ON) state
'Y20 '''Flea width 30 in opposite phase to the applied voltage waveform
A rectangular wave with a V-deity of 50% and a frequency of IMHz is applied, and is grounded in the non-selected ((1) Ii'F) state.

Next, pixel 9 shown in the second prisoner. The timing of the applied voltage will be explained using the case of displaying lO as an example.

The display of pixel 9 is when electrodes ylI)'1 and X2 are in the selected ((JN) state, and all other electrodes are in the unselected ((JN) state)
uFF) state. In addition, the display of the pixel 10 is when the electrodes Yl*)'2 and X2 are selected (ON).
) state and all other electrodes are unselected (UFF
) state. In this way, sequentially,
By scanning the row electrodes and selecting or unselecting the appropriate column electrodes X1 to X640, a desired pattern display can be obtained.

Incidentally, in this example, the width of the IIA dynamic voltage forming shape can be driven by the column electrodes at a low voltage of 30 V, and the number of row electrodes is reduced to 40, which is l/10 of the number of pixels of 400. It happened.

〔Effect of the invention〕

As explained above, in the present invention, by configuring the discharge space with three electrodes, it is possible to realize a lower vtEE of the drive voltage and a reduction in the number of drive electrodes, and it is possible to significantly reduce the scale of the drive circuit. I can see the effect of being able to do it.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the structure of an embodiment of the gas discharge display device of the present invention, FIG. al~(cl is a diagram showing drive forming of the gas discharge display device of the present invention. 1.5... Insulator substrate, 2... Strip electrode pair, 3.7... ...Dielectric electrode coating film, 4.8.
・・・・・・Bulkhead, 6ta 5M: Pixel
'! ,,-1. 1. PiZ%. 〆3 Congee-3 "Old man 5 Non-L+! (#f) a Koshin, Figure C J do) 9 [-4 me', (1) FF' case diagram (b) Unauthorized (shiku (θFF) ) f) 4th figure (C)

Claims (1)

[Claims] A first insulating substrate including a plurality of first strip-shaped electrodes arranged parallel to each other, and a second insulating substrate including a plurality of second strip-shaped electrodes arranged parallel to each other. an insulating substrate, the first and second insulating substrates are opposed to each other since the first and second electrodes are located inside, and at least one of the insulating substrates is transparent. In an external electrode type gas discharge display device having optical properties, an insulator partition wall is arranged on the first insulator substrate in parallel between the first electrodes, and an insulator partition wall is orthogonal to the first electrodes. and a first electrode pair formed by dividing the first electrode into two in the longitudinal direction; a second insulator partition that is orthogonal to the electrode, further, the first electrode pair and the second strip electrode are orthogonal to each other, and one of the first electrode pairs is connected to the second insulator partition. 1. A gas discharge display device characterized in that said first and second insulating substrates face each other so as to face each other.