JPH02234334A - image display device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an image display device for video equipment. Conventional technology In conventional image display devices such as cathode ray tubes, the connection between the anode, a phosphor screen to which a high voltage is applied, and the anode terminal was made using a carbon-based conductor called duck. That is, as shown in FIG.
I was connecting with Here, 7 indicates a container. Problems to be Solved by the Invention However, with such a structure, when a large current flows through the phosphor screen 8 to improve brightness, the conductivity 111
There were problems such as wire breakage and partial discharge. Furthermore, if the width of the conductive film 10 is increased to allow a large current to flow, the surrounding electric field will be disturbed, making it impossible to obtain a uniform image!
There was an IN. Therefore, the present invention improves the reliability of the connection between the phosphor screen and the anode terminal by providing a terminal made of a thin metal plate that connects the anode terminal and the phosphor screen. Means for Solving the Problems In order to solve the above problems, the image display device of the present invention has the following features:
The container is equipped with an anode terminal, which is made by joining a cylindrical metal terminal and a terminal made of a thin metal plate, and this anode terminal is connected to a phosphor screen. Function The present invention has the above-described structure and connects to the phosphor screen with a terminal made of a thin metal plate having a much larger cross-sectional area than the conventional conductive film, thereby preventing disconnection even if a large current flows through the phosphor screen. It does not cause partial discharge. Furthermore, since the width of the metal plate is small, a uniform west image can be obtained without disturbing the surrounding electric field. EXAMPLE Hereinafter, an image display device according to an example of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of essential parts showing the configuration of an image display device according to an embodiment of the present invention. In FIG. 1, 1 is a container, and an electron beam control means 3 is installed inside the container. Further, a phosphor screen 2 is provided on the inner surface of the transparent portion of the container 1. In this embodiment, an anode terminal 4 is attached to the container l with a glass adhesive 7. This anode terminal 4 is composed of a cylindrical or cylindrical metal terminal 4a made of so-called sealing metal and a terminal made of a thin metal plate portion 5, and is connected to the phosphor screen 2 with a conductive adhesive 6. ．． The metal terminal 4a and the thin metal plate portion 5 are joined by brazing, welding, or the like. Next, the operation of the configuration of this embodiment will be explained. By connecting the phosphor screen 2 with a terminal made of a thin metal plate with a much larger cross-sectional area than a conventional conductive film, it will not break even if a large current, about lθ times that of a conventional cathode ray tube, flows through the phosphor screen. It does not cause partial discharge. Furthermore, because the width of the metal plate is small, a uniform image can be obtained without disturbing the surrounding electric field. In addition, the workability of connecting to the phosphor screen has been improved by using an integrated anode terminal that combines a cylindrical metal terminal and a thin metal plate terminal. Effects of the Invention The present invention makes it possible to obtain an image display device with a uniform image with high brightness by providing an anode terminal in a container, which is a combination of a cylindrical or cylindrical metal terminal and a terminal made of a thin metal plate. It is.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an image display device according to an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional image display device. 1... Container, 2... Phosphor screen, 3... Electron beam control means, 4...
Anode terminal, 4a...Metal terminal, 5...
...Thin temporary metal part, 6... Conductive adhesive. Agent's military name: Patent attorney Shigetaka Awano

Claims (1)

[Claims] a container, an electron beam control means installed in the container, a phosphor screen provided on the inner surface of a transparent portion of the container, and an anode consisting of a terminal and a thin plate connected to the phosphor screen and provided in the container. An image display device comprising a terminal.