JPH0682544B2 - Image display device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat panel image display device in the field of video information equipment and a connecting means for an electric circuit for driving the flat plate image display device.

2. Description of the Related Art In recent years, flat-panel image display devices such as liquid crystal display devices, plasma display devices, and electroluminescence display devices have been researched and developed as image display devices, and some have been put to practical use. In addition to the flat panel display device,
For example, multi-line cathode type display devices have also been researched and developed.

Hereinafter, an example of the above flat panel image display device will be described with reference to the drawings. FIG. 3 shows the whole of a conventional multi-line cathode type flat panel image display device. As shown in FIG.
From the rear to the front, the back electrode 1, the line cathode 2 serving as an electron beam source, the vertical focusing electrodes 3, 3a, the vertical deflection electrode 4, the electron beam flow control electrode 5, the horizontal focusing electrodes 6, 6a, the horizontal deflection electrode.
7, electron beam acceleration electrode 8, anode 9 and glass container 10,
The back metal plate container 11 is installed and configured, and
The above-mentioned components are housed in a vacuum chamber 10 and 11. A linear cathode 2 as an electron beam source is horizontally stretched so as to generate an electron beam linearly distributed in the horizontal direction, and a plurality of such linear cathodes 2 are vertically arranged at appropriate intervals ( Only four are shown here). These wire cathodes 2 are formed, for example, by electrodepositing an oxide cathode material on the surface of a tungsten wire having a diameter of 10 to 20 μm. Then, the electron beam is controlled to be sequentially emitted from the upper line cathode 2 for a predetermined time.

The operation of the image display device configured as described above will be described below. The back electrode 1 has a function of pushing out an electron beam from a line cathode other than the line cathode 2 which is controlled to emit the electron beam for a certain period of time, only in the forward direction. Next, the electron beam is vertically focused by the vertical focusing electrodes 3 and 3a and vertically deflected by the vertical deflection electrode 4. Further, the electron beam flow control electrode 5 controls the passing amount of the electron beam, is horizontally focused by the horizontal focusing electrodes 6 and 6a, is also horizontally deflected by the horizontal deflection electrode 7, and finally is electron beam accelerating electrode 8 Is accelerated, and the anode 9 is excited to emit light. With reference to FIG. 2, the terminals of the sealing surface of the container of the conventional image display device described in FIG. 3, the electrode group housed in the container and the driving electric circuit outside the container are shown. The connecting means will be described. In FIG. 2, the terminal 12 of the container seal portion is shown.
a is a seal portion between the container 10 and the back metal plate container 11, which is sealed by a frit 13, and inside the container, a terminal 12b connected to an electrode group in the container, spot welding, laser welding, or the like. Connected by. The terminal 12a is connected by spot welding, laser welding, or the like, like the terminal 12c connected to the driving electric circuit outside the container.

Problems to be Solved by the Invention However, in the above-described connection configuration, there are problems that the number of connection terminals is extremely large, it is difficult to secure reliability of the sealing property on the sealing surface, and at the same time, productivity is poor. Was.

In view of the above problems, the present invention provides an image display device in which a method of connecting a seal portion of the image display device is simple and reliability can be sufficiently ensured.

Means for Solving the Problems In order to solve the above problems, the image display device of the present invention is
A conductor paste is thick-film printed on the container surface of the seal portion by a screen printing method or the like, and conductor printed terminals are provided instead of a plurality of metal terminals.

Effect According to the present invention, since the terminals of the seal portion of the image display device are formed on one surface of the container by the printing method, an extremely large number of terminals can be provided with high productivity. At the same time, since the terminal of the seal portion of the image display device can be formed flat on one surface of the container, the occurrence of leak can be prevented and the reliability of the image display device can be ensured.

Embodiment An image display apparatus according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a connection structure of a seal portion of an image display device according to an embodiment of the present invention. In FIG. 1, 14 is an insulating layer for printing a frit to insulate the surface of the metal plate container 11, and 15 is
It shows a printed terminal formed by thick film printing of a conductor paste by a screen printing method or the like. As a manufacturing method, using a cermet type copper paste, the printed terminal 15 is formed on the insulating layer 14 on the surface of one side of the back metal plate container 11 by a screen printing method, and baked at 900 ° C. for 30 minutes. The manufacturing method is adopted. For this reason, the terminals on the sealing surface of the image display device having this configuration are flat. The connection method will be described below with reference to FIG. The print terminal 15 of the seal portion of the image display device is a terminal 12b connected to an electrode group housed in the image display device, and a terminal connected to a driving electric circuit outside the image display device.
12c and each are connected by the welding method.

EFFECTS OF THE INVENTION As described above, the present invention is, in the image display device, on the back metal plate container of the seal portion of the glass container and the back metal plate container, forming a printed terminal that is a conductor layer, By connecting various electrode groups in the image display device and an electric circuit for driving the image display device, it is possible to improve productivity and ensure reliability.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view of a seal portion of an image display device according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of a seal portion of a conventional image display device, and FIG. 3 is an image display of a conventional example. It is an exploded perspective view of an apparatus. 10 …… glass container, 11 …… rear metal plate container, 12a …… metal terminal, 14 …… insulating layer, 15 …… printed terminal.

Claims (1)

[Claims] 1. A group of various electrodes such as a plurality of line cathodes, vertical focusing electrodes, vertical deflection electrodes, electron beam flow control electrodes, horizontal focusing electrodes, horizontal deflection electrodes, and electron beam accelerating electrodes between a back electrode and an anode. In an image display device comprising a glass container having the anode formed on the inner surface thereof and a back metal plate container for forming a vacuum container with the glass container, a seal between the glass container and the back metal plate container. An insulating layer is provided on the metal plate container of the part, and a conductor layer having a pattern corresponding to each electrode lead terminal is formed by printing a cermet type copper paste on the upper surface of the insulating layer by a screen method, and the various electrode groups are formed. An image display device characterized in that a driving electric circuit and a driving electric circuit are connected by welding.