JPS6034777B2 - gas discharge panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a surface discharge type gas discharge panel that generates discharge spots between electrodes provided on the same substrate.

A conventional self-shifting gas discharge panel has busbars of three or more phases on one substrate and electrodes regularly connected to these busbars and each coated with a dielectric layer, and on the other substrate. A common configuration has been to provide electrodes each covered with a dielectric layer and a common bus bar to which these electrodes are commonly connected, and one and the other substrates are arranged in correspondence with each other via a space filled with discharge gas.

However, when a certain bus bar of three or more phases intersects with an electrode connected to another bus bar, a so-called crossover part must be formed to insulate this intersection from each other. Met. Therefore, when high-resolution display is performed by reducing the electrode pitch, the crossover portion must also be formed at a correspondingly small pitch, making manufacturing extremely difficult. Therefore, a ME (MeanderElectm -de) type gas discharge panels were proposed in Japanese Patent Application No. 8241/1983. In this gas discharge panel, the electrodes that form the discharge points are connected in a meandering manner, but since no crossover portion is required, it is easy to reduce the electrode pitch. The characteristics of each discharge point of a gas discharge panel are determined by the facing distance of the electrodes, the thickness of the dielectric layer, etc., and it is desired that the characteristics of each discharge point be the same. Particularly in the case of a self-shifting gas discharge panel, if a defective discharge point exists, the discharge spot will not be shifted beyond the defective discharge point. Furthermore, since the facing distance between the electrodes is approximately several hundred mm, in large gas discharge panels, a spacer is inserted to maintain a constant spacing between the substrates.
However, in a self-shift type gas discharge panel, a spacer must be provided in addition to the discharge spot shift channel, which is difficult to realize. The present invention
The object of the present invention is to change the ME type gas discharge panel described above to a surface discharge type so that a large-sized gas discharge panel can be easily manufactured.

Examples will be described in detail below. FIG. 1 is an explanatory diagram of the electrode arrangement according to the embodiment of the present invention, and shows X,,X2,Y,,Y
2 is a bus bar, wl is a write electrode, xlli, x21i, yl
li, y21i (1, 1, 1=1, 2, 3, . . . ) are electrodes.

Two-phase first busbars Y1, Y2 are arranged on both sides, and a plurality of first electrodes yllj, y21i are connected to connection conductors alternately connected to the busbars Y1, Y2 so as to protrude alternately. In addition, the second bus bars X1 and X2 of the two phases are arranged on both sides, and a discharge point is formed between the connecting conductors alternately connected to the bus bars X1 and X2 and the first electrodes ylli and y2i. Electrodes xlli and x21i are connected so that

FIG. 2 is a cross-sectional view taken along the line A-A', in which 1 is a substrate such as a glass plate, 2 and 3 are first and second dielectric layers such as low melting point glass, and 4 is a transparent glass, for example. A cover made of a board,
5 is a sealing portion, and 6 is a space filled with discharge gas.

When a voltage is applied between the write electrode wl and the bus line YI, the first and second electrolyte layers 2, 3 in the first electrolyte layer 2 between the write electrode wl and the electrode ylll Electric lines of force are generated within the discharge gas-filled space 6, and a discharge is generated in the discharge gas-filled space 6.

Next, when a voltage is applied between the bus lines X1 and YI, the electrode xll
Electric lines of force similar to those described above are generated between electrodes wl and ylll, and the pilot effect caused by the discharge between electrodes wl and ylll causes electrode xll to
A discharge occurs between l and yllll. Therefore (×1, YI)
, (X1, Y2), (×2, Y2), (X2, YI),
The discharge spot can be shifted by applying shift pulse voltages to the bus bar in this order. Such a gas discharge panel has busbars Y1, Y2 and electrodes y on a substrate 1.
lli, y21i are formed by a technique such as etching, and then the first dielectric layer 2 is formed to a thickness of 2 to 100 m, preferably 5 to 10 rm, and the bus lines X1, x2 are formed thereon.
and electrodes wl,
Covers 4 are provided at intervals of ~2 ribs, preferably 300~500 Am, and the periphery is sealed with seals 5.

In that case, there is no crossover between the bus bar and the electrode in each layer, so the manufacturing process is not complicated.
In addition, since electrodes for forming discharge points are provided on the substrate 1, the characteristics of the discharge points can be maintained even if the substrate 1 is curved by making the thickness of the current transfer layers 2 and 3 uniform. can be made the same. FIG. 3 is an explanatory diagram of the electrode arrangement of another embodiment of the present invention, in which the electrodes xll, x21j connected to the bus lines X1, X2 overlap with the electrodes ylli, y21j, connected to the bus lines Y1, Y2. This is about the case where there is no such thing.

Further, FIG. 4 is a cross-sectional view thereof, in which the same reference numerals as in FIG. , electrodes ylli and y21i connected to bus lines Y1 and Y2 are provided on the first transfer body layer 2. FIG. 5 shows an example of the drive waveform of the gas discharge panel of each of the above-mentioned embodiments, where VY1, VX1, VY2, and VX2 are the bus line Y1.
, X1, Y2, and X2, VW is the pulse voltage applied to the write electrode wl, and VA to VD are applied to the discharge points between the electrodes connected to the bus bars of the combinations shown in parentheses, respectively. The pulse voltage Vwl indicates the pulse voltage applied to the write discharge point.

Further, Pw represents a write pulse, Ps represents a shift pulse, and Pe represents an erase pulse. This erase pulse Pe is obtained by forming a narrow pulse by the phase difference re of the pulse voltage applied to the bus line. In period TI, the electrode xlli
, ylli and at the discharge point between ×21i, ylli
, VD, a shift pulse Ps is applied, and a write pulse Pw is applied to the selected write electrode wl,
Since this write pulse Pw is selected to have a peak value higher than the discharge start voltage, the discharge spot write discharge rule occurs.

And the electrodes xllll, yl ll adjacent to the write discharge point
A discharge spot is generated at the discharge point in between by the pilot flame effect.
Also, between the electrodes xllj and y21j and between the electrodes x21i and y21
At the discharge point between i, there is an erase pulse P as shown in VB and VC.
e is released. In the next period T2, the electrode xll
A shift pulse Ps is applied to the discharge point between the electrodes xlli and ylli and the discharge point between the electrodes xlli and y21j.
This occurs at the discharge point between 211 and 211.

Thereafter, one cycle of shifting is performed in the same manner until the period T4, and in the period T4, the electrodes x211, y2
The discharge spot shifts to the discharge point between 11 and between x211 and yl12. As explained above, the present invention includes two-phase first busbars Y1, Y2 on a substrate 1, and a plurality of first electrodes y regularly connected to these via connecting conductors.
llj, y21j are provided, and these electrodes yllj, y21
A first dielectric layer 2 is provided on the dielectric layer 2, and on this dielectric layer 2, two-phase second busbars X1, X2 and a plurality of second electrodes are regularly connected to these via connecting conductors. xlli,
x21j, a second electricity transfer layer 3 is provided on the electrodes xlli and x21i, a cover 4 is provided on the dielectric layer 3 with a discharge gas filled space 6 in between, and One of the electrodes is connected by protruding alternately from the connecting conductor, and the other electrode is connected to the connecting conductor so that a discharge point is formed between the one electrode and the other electrode. The discharge points are arranged almost linearly in the direction along the connection conductor that connects the poles, and it has the features of a meander (ME) type gas discharge panel, and because it is a surface discharge type. Since the characteristics of each discharge point are not affected by the distance between opposing substrates, there is an advantage that it is easy to manufacture a large gas discharge panel.

In addition, in conventional facing discharge type gas discharge panels, the periphery of the substrates must be sealed after the opposing positions of the substrates are accurately aligned so that the electrode patterns on each substrate are in the specified positions. However, according to the present invention, a second layer electrode pattern is formed on top of a first layer electrode pattern, and Since no crossover occurs in the connection conductor that connects the bus bar and electrode in each layer, it is easy to align the electrode patterns on the first and second layers, and there is no misalignment during the sealing process. without arising,
It has the advantage of being very easy to manufacture.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the electrode arrangement in one embodiment of the present invention, Fig. 2 is a sectional view taken along the line A-A' in Fig. 1, and Fig. 3 is an explanatory diagram of the electrode arrangement in another embodiment of the invention. FIG. 4 is a sectional view thereof, and FIG. 5 is an explanatory diagram of an example of a drive waveform. X1, X2, Y1, Y2 are bus lines, xlli, x21i,
ylli, y21i are electrodes, 1 is a substrate, 2 and 3 are first and second dielectric layers, 4 is a cover, 5 is a sealing portion, and 6 is a discharge gas-filled space. Figure 2 Figure 1 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 1. A two-phase first bus bar and a plurality of first electrodes regularly connected to the first bus bar via connection conductors are provided on the substrate, and a plurality of first electrodes are provided on the first electrode. A dielectric layer is provided on the first dielectric layer, and a second bus bar of two phases is provided at a position substantially orthogonal to the first bus bar, and a connecting conductor is connected to the second bus bar, respectively. A plurality of second
a second dielectric layer is provided on the second electrode, a cover is provided on the second dielectric layer via a discharge gas filled space, and the first or second One of the electrodes is connected by protruding alternately from connection conductors alternately connected to the two-phase busbars, and the other electrode is connected to the connection conductors alternately connected to the two-phase busbars. , connected to the one electrode so as to form a discharge point where a discharge is generated in the discharge gas-filled space by a voltage applied between the electrodes, and in a direction along a connecting conductor connecting the one electrode. A gas discharge panel characterized in that said discharge points are arranged substantially linearly.