KR19980017192U - Large Screen Plasma Display Panel Electrode Glass Touch Probe - Google Patents

Abstract

The present invention discloses a plasma display panel glass electrode touch probe capable of testing a four-electrode plasma display panel glass electrode.

The present invention, unlike the electrode touch probe for testing the conventional three-electrode plasma display panel glass, in addition to the first row and the second row of touch pins, two common terminal probes on both sides of the first row of touch pins have the same height. Installed as.

Accordingly, in the present invention, in testing a four-electrode plasma display panel having a minute structure and a complicated structure between electrodes, the first and second row touch pins of the first and second row touch pins may be It is possible to minimize the impact on the contact state, thereby enabling accurate contact resistance test, disconnection and short circuit test, thereby improving the reliability of the test, and as a result, it is useful to produce a plasma display panel with high information display quality. It works.

Description

Large Screen Plasma Display Panel Electrode Glass Touch Probe

1 is a plan view showing a conventional three-electrode type large screen plasma display panel glass.

2 is an explanatory diagram showing a conventional three-electrode type large screen plasma display panel glass electrode touch probe;

3 is a bottom view of a conventional three-electrode large screen plasma display panel glass electrode touch probe;

4 is a plan view showing a four-electrode large screen plasma display panel glass.

5 is an explanatory diagram showing a four-electrode large screen plasma display panel glass touch probe according to the present invention;

6 is a bottom view of a four-electrode large screen plasma display panel glass touch probe according to the present invention;

Explanation of symbols on the main parts of the drawings

1 Grass 2

3: Plate 4: Connector

5, 6: touch pins 7, 10, 11: glass electrode

8: probe

The present invention relates to a touch probe for testing the electrode state of a large plasma display panel glass, and more particularly to a touch probe for testing the disconnection or short circuit of the electrode of a four-electrode large screen plasma display panel glass. .

As is well known, the plasma display panel is provided with a large number of columns and rows of electrodes for precise image representation.

In fact, most plasma display panels are composed of six blocks with 80 electrodes as one block, and alignment marks are printed on both sides of the block.

Since the large-sized plasma display panel has a large area, the resistance variation of the multiple electrodes printed on such glass is so great that the glass having a large resistance variation of the electrode is selected before the panel is assembled, and the inspection of the disconnection and short circuit of the electrode is performed. If the result is poor, it is necessary to prevent it from entering the next process.

Used for this purpose is an electrode touch probe as shown in FIG.

This is provided with a contact on the bottom of the bottom contact with the electrode of the glass, the two cameras installed under the touch probe to shoot the alignment marks arranged on both sides of the block to observe whether the set position has been reached, and if a predetermined One camera is provided for outputting a signal and for observing a connection state of a contact, and thus, a predetermined signal is output by detecting a connection state of the contact.

In the conventional electrode touch probe, the electrode of the touch grove is connected to the electrode on the glass by lifting and lowering of the motor, and then a current is flowed to measure the resistance between the plurality of electrodes.

In recent years, however, four-electrode plasma display panels having a common terminal as shown in the fourth road have been widely used to improve information display quality. Such plasma display panel glass electrodes have been used in comparison with the conventional three-electrode type. The structure is extremely complicated, and since electrodes are arranged at fine intervals, it is difficult to apply a touch probe as shown in the second road.

SUMMARY OF THE INVENTION In view of the above problem contact, an object of the present invention is to provide an electrode touch probe capable of smoothly performing resistance deviation, disconnection, and short circuit tests related to electrodes of a four-electrode plasma display panel glass.

In order to achieve the above object, the present invention is to provide a connector and a touch pin, etc. to the plate to be elevated by the operating means to test the electrode on the glass, one side of the four-electrode plasma display panel glass Plasma having a first column and a second column touch pins to be touched on two kinds of electrodes of the first electrode, but only two common terminal electrodes on both sides of the first column touch pins We propose a display panel glass electrode touch probe.

According to the above configuration, the present invention has a fine pitch between the electrodes, and it is possible to test resistance variation, disconnection, and short circuit between the electrodes of the four-electrode plasma display panel glass having a complicated structure. Since it is possible to accurately sort the glass that is severe or disconnection, abnormality such as short circuit, it is possible to provide a plasma display panel with high information display quality.

This invention is described in detail with reference to the accompanying drawings as follows.

As shown in the sixth road, the touch electrodes according to the present invention have a first row of touch pins 5 made of metal arranged horizontally on a bottom surface of a plate body 3 having a step 2 lifted by an operation means such as a cylinder and the like. The second row of touch pins 6 are formed on the grass 1 shown in the fourth road at the same interval as the glass electrodes 10, 11, and these touch pins 5, 6 are connected to the respective connectors 4. One common terminal probe 8 made of metal is arranged on both sides of the touch pin 5 in the first row, and the touch pins 5 and 6 and the common terminal probe 8 are arranged on the same horizontal line. will be.

The present invention as described above is installed on the glass 1 is formed with four electrodes as shown in the fourth road is to be lowered according to the operation of the operating means.

Therefore, the plate body 3 is lowered so that the touch pins 5 in the first row and the touch pins 6 in the second row and the common terminal probe 8 in the bottom surface are provided with the corresponding glass electrodes 10 and 11 on the glass 1. , 7), and in this state, it is determined by two cameras whether the alignment mark formed on both sides of the electrode of the glass 1 is correct, and the contact state of each touch pin 5 or 6 is different. It is determined by one camera.

As a result, in the normal case, the control device sends a current to the touch pins 5 and 6 and the probe 8 via the connector 4, thereby measuring the resistance value and printing the glass electrode 7, which is printed on the glass 1, If the flatness of 10, 11) is good, the contact resistance value of each part falls within the allowable deviation range, and therefore, it is determined to be good, and if the contact resistance value is out of the allowable horseshoe range, it is determined to be defective.

In addition, as shown in FIGS. 2 and 3, the disconnection of each of the glass electrodes 7, 10, and 11 or the short circuit caused by the pattern touch may be caused by contact with the other side of the glass 1. Of course, it can be determined by referring to a signal of a conventional touch probe.

As such, the present invention does not contact the entire terminal, such as the touch pins 5 and 6, but only the two probes 8 by contacting the touch pins 5 and the second row of the second row that may be generated upon contact. It is possible to prevent the lifting of the touch pin 6 and to minimize the electrical contact noise. After doing this, the plate 3 is lifted by a power source such as a cylinder used as an operation means, and new glass is entered to perform a continuous glass electrode test as described above.

Claims (1)

The connector 4 and the touch pins 5 and 6 are installed on the plate 3 lifted by the operating means, so that the glass electrodes 7, 10 and 11 on the glass 1 can be tested. In that, The first and second row touch pins 5 and 6 are provided to touch the two kinds of glass electrodes 10 and 11 on one side of the four-electrode plasma display panel glass 9 ′, but the electrodes 7 of the common terminal 7 are provided. Plasma display panel glass electrode touch probe, characterized in that only two common terminal probes (8) which can be touched) are formed on both sides of the first row touch pin (5).