JPS584246A - Gas-discharge display device - Google Patents

Abstract

PURPOSE:To obtain a plasma displayer which is useful as a bargraph display panel, has a scanning function, and can realize multicolor display which cannot be realized by any other display unit. CONSTITUTION:Many cathodes 2 (K1, K2,...), many anodes 3 (A1, A2...), a reset electrode 4 (R), a pair of keep-alive electrodes 5, a cathod two-phase connection 200 connecting every other cathode 2 to a cathode terminal 21, and an anode two-phase connection 300 connecting every other anode 3 to an anode terminal 31 are provided on the same plane. Phosphors 10 emitting green, red, yellow and the like and used for nulticolor display are applied to parts of a surface plate 9 and a base plate 1 which face the discharge spaces formed between the cathodes 2 and the anodes 3. The operation of thus constituted panel is carried out by shifting electric discharge produced between the reset electrode 4 (R) and a cathode (K1) to a required position, in the order of R-K1 K1-A1 A1- K2 K2-A2 A2-K3..., according to input signals applied between cathod terminals 20 and 21 and anode terminals 30 and 31 by, for example, subjecting the cathodes 2 and the anodes 3 to two-phase connections.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas discharge display suitable for displaying graphical displays, particularly bar graphs.

As bar graph display gray panels, those using plasma displays (hereinafter abbreviated as FDP), fluorescent display tube single-source diodes, liquid crystals, electroluminescence, and the like have been developed.

Since these electronic bar graph displays have the advantages of both analog and digital, they are attracting much attention as display devices for measuring instruments, medical equipment, audio equipment, and automobiles. Among these, FDP in particular can be equipped with a self-scanning function, so the number of drive circuits (and therefore the number of terminals) is small regardless of the number of segments.
It has great features such as requiring only 7 to 8 circuits.

The present invention has a scanning function, can display multiple colors that other display elements do not have, and has a simple structure.
The purpose is to provide DPk.

Next, an example thereof will be explained using figures.

A large number of cathodes 2 (
Kr, Kt,...) and anode 3 (A,...).

A2. ), reset electrode 4 (R), pair of keep-alive electrodes 5, cathode terminals 20 and 21, anode terminal 3
0 and 31. and every other cathode 2 and anode 3 (in the case shown, 2, 2, 2).

...- and AH@A4 1...) Cathode terminal 21
A cathode two-phase connection 200 and an anode two-phase connection 300 connected to the anode terminal 31 are simultaneously formed on the same plane as shown.

Next, on top of that, at least the movable display parts of the cathode 2 and anode 3, a part of each of the terminals 20, 21, 30, 31, and the unconnected cathode 2 (Ks, Ks...)
Except for the connection part 100 with each two-phase connection (A Ig A B...) and the connection part 101 between the terminals 20 and 30 and the two-phase connection, for example, a glass paste T-printed, fired insulating layer is used. 6 ◎ Next, on top of this, the two-phase connection 201 of the cathode and the two-phase connection 301 of the anode and t'% N
The i-paste is printed and fired, and the various parts are connected using silver paste or the like.

Furthermore, above this, a discharge space of 7'ft having an arbitrary shape is provided.
For example, an insulating plate 8 is provided for forming (may be formed by thick film technology, etc.). Next, a face plate made of a transparent glass plate or the like is placed on top of this, and the whole is sealed to withstand high vacuum.

Note that at least one of the front and back surfaces of the face plate 9, except for one display portion having an arbitrary shape, may be processed to be opaque and prevent reflection by coating, a black matrix, or the like.

In addition, a phosphor 10 for multicolor display (for vacuum ultraviolet rays,
(Arrange green, red, yellow, etc. as necessary)
2) Coat the parts of the face plate 9 and the substrate 1 facing the discharge space between the 0° cathode 2 and the anode 3, respectively. Furthermore, the discharge space 7 is filled with rare gases such as Xs, Kr*Ne + He, etc. alone or in a mixture, or together with a small amount of Hg. With this configuration, (1) electrodes etc. can be formed simultaneously on the same surface; This reduces the number of steps and improves accuracy.

(2) Application of the phosphor becomes easier.

(3) The number of parts is also reduced.

moreover, (4) The overall assembly becomes easier.

There are great advantages such as:

[In addition, the above electrode arrangement R-, -A, -, ... tR-
A @ K IA 2... may be used. In addition, the viewing surface is not limited to the face plate 9 side, and may be placed on the substrate l side.Furthermore, although the display section is described above as a simple (basic) linear shape, the shape is not limited. ,
Next, the operation of this panel is such that, for example, by connecting the cathode and the anode in two phases, the discharge generated between the reset electrode 4 (R) and the cathode 1 is transferred to the cathode. According to the input signal (pulse voltage signal) applied to the terminal 20.21 and the anode terminal 30.31, R- →Kt-A, →A, -→Kt-A, -A.

→A, - to 3→・・・・・・・・・ Or R- to heavy → to, -A, → to 2-A, →Kj-A3→-work 101・?・- Or R- to 1 → A, -, → A, -, →...
. . , and is basically moved to a required position according to an input signal (this driving method is not limited to this device, but can also be applied to driving other display devices such as EL). Note that the ultraviolet rays generated at this time are used to excite the phosphor, and information is displayed using the required luminescent color. (
In this case, information can be displayed solely by the light emitted from the gas discharge without necessarily using a phosphor. ) When operating in this way, the number of terminals is ``regardless of the number of cathodes and anodes, the number of cathode and anode terminals is only 2 each,
1 terminal for reset electrode and 2 terminals for keep alive
This has the great advantage of requiring a smaller number of terminals and providing a larger operating margin than in the case of self-scanning drive with four or more phases.

It is also possible to provide each discharge cell with a memory function by providing a resistance for limiting the discharge current on each cathode or each anode, or by using the resistance of the discharge itself.

Further, even if it is provided between the anode 3t and the face plate 9, the same operation can be achieved. Furthermore, the number of electrode connection phases is not limited to two phases each; for example, the number of electrodes is one phase.

It may be a three-phase cathode, two phases an anode, three phases a cathode, or the like.

(The names of the displayed bar graphs, etc., their units, and the values in between, etc., in Japanese or Latin, for example, speed If, k/li.

0, 10, 20. . . . should be written near the display area of the bar graph using paint such as fluorescent paint (the display color can be selected arbitrarily). In addition, this bar graph may be used in combination with a character or graphic display device.0) As explained above, the present invention provides a fugas discharge ice spray panel with an easy-to-manufacture structure and a small number of terminals. It can be driven with a large operating margin, and its effects are significant.

[Brief explanation of drawings]

Claims (1)

[Claims] a plurality of anodes formed on the same substrate with a predetermined spacing; a plurality of cathodes arranged between the anodes with a predetermined spacing; and a first connection that connects the plurality of anodes in a polyphase manner. a second means for connecting the plurality of cathodes in a polyphase manner;
and a connecting means, characterized in that by applying a pulse voltage between the anode and the cathode via the first and second connecting means, the discharge generated between the two electrodes is self-scanned. Gas discharge display device.