JPS6339732Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device that displays numbers, characters, etc. using electrical signals from the outside, and particularly relates to improvements in lead terminal portions for connection with external circuits.

Conventionally, this type of display device is explained by taking a discharge display device as an example.
As shown in FIG. b, a first insulating substrate 1 having a surface having a discharge electrode (not shown) and a dielectric layer (not shown) covering the discharge electrode, and a similar second insulating substrate 2
are arranged facing each other so that the discharge electrodes, that is, the display electrodes are on the inside, to form a discharge space. In order to make the connections, it was common to locate them on both sides of the discharge display device, or on two adjacent sides of the discharge display device, as shown in FIG. 1a. However, when connecting a discharge display device with this terminal structure to an external drive circuit, the terminals are not lined up on one side, so the lead wire length of the external drive circuit becomes extremely long, causing the discharge display device to malfunction. There were drawbacks such as stability issues and the need for extra space for lead wiring. Furthermore, since the electrode terminal portion requires space on two sides, there is a drawback that the external dimensions of the display device become large.

An object of the present invention is to provide a display device having a terminal structure that can eliminate the above-mentioned drawbacks.

According to the present invention, two insulating substrates having display electrodes provided on their surfaces are arranged facing each other with the electrodes facing inside, and electrode terminals for connecting the electrodes and lead wires are provided on the insulating substrates. In the display device, an end portion of the insulating substrate on which the electrode terminal is formed has an inclination angle with respect to the surface of the insulating substrate, and the electrode terminal is on an extension of the electrode and has a surface having the inclination angle. A display device is obtained, characterized in that it is formed on the top.

An embodiment of the discharge display panel according to the present invention will be described below with reference to FIGS. 2a and 2b.

After cutting a 3 mm thick glass plate to a predetermined size, one side of the first insulating substrate 5 on which the terminal electrode 7 will be provided is cut into a second
As shown in Figure b, polishing was performed at an angle of 30°. Thereafter, a discharge electrode (not shown) having a predetermined shape was formed on the surface of the insulating substrate by screen printing, and then a dielectric layer (not shown) was formed to cover the discharge electrode. At this time, since the end of the insulating substrate was inclined at an angle of 30° with respect to the surface of the insulating substrate, the electrode terminal 7 at the end of the insulating substrate could be formed at the same time as printing the discharge electrode. In other words, while it is impossible to form the electrode terminal 7 on the side surface of the insulating substrate at an angle of 90° with respect to the surface of the insulating substrate at the same time as the discharge electrode using the screen printing method, the present invention The electrode terminal 7 on the extension can be easily formed on a surface having an inclined angle. Similar to the first insulating substrate 5 formed in this way, a discharge electrode, an electrode terminal, and a dielectric layer were formed on the second insulating substrate 6. These two insulating substrates were placed facing each other so that their respective electrode terminals 7 were located on the same side, and the periphery thereof was sealed with low melting point glass 10 to form a discharge space. After further introducing neon gas and sealing, lead wires 8 and 9 were soldered to the electrode terminal 7, and this connection portion was covered with an epoxy resin 11. When soldering the lead wires 8 and 9 to the electrode terminal 7, the gap between the two insulating substrates 5 and 6 is approximately 6 mm, and the depth is approximately 5 mm, as shown in Figure 2b. Connection was possible by soldering. As a result, a discharge display device was completed in which the lead wires 8 and 9 connected to the electrode terminals 7 were all located within the same side.

In the discharge display device obtained in this way, the lead wires 8 and 9 are all aligned on the same side without any major changes compared to the conventional manufacturing method, and the printed circuit board (Fig. (not shown), the lead wire length of the external drive circuit can be shortened, preventing unstable operation of the discharge display device and eliminating the need for extra space on the printed circuit board. Summer. Furthermore, since no space is required for electrode terminal portions on each of the insulating substrates 5 and 6 of the display device, the external dimensions of the display device can be reduced.

[Brief explanation of the drawing]

FIGS. 1a and 1b are a perspective view and a sectional view of a conventional display device. FIGS. 2a and 2b are a perspective view and a sectional view taken along line A-A' of an embodiment of the present invention. 1...First insulating substrate, 2...Second insulating substrate, 3
... Electrode terminal, 4... Lead wire, 5... First insulating substrate, 6... Second insulating substrate, 7... Electrode terminal, 8, 9
...Lead, 10...Low melting point glass, 11...Epoxy resin.

Claims (1)

[Scope of utility model registration request] A display device in which two insulating substrates each having display electrodes provided on their surfaces are arranged facing each other so that the electrodes are on the inside, and electrode terminals for connecting the electrodes and lead wires are provided on the insulating substrates, An end of the insulating substrate on which the electrode terminal is formed has an inclination angle with respect to the surface of the insulating substrate, and the electrode terminal is formed on a surface that is an extension of the electrode and has the inclination angle. A display device characterized by: