JP2002056778A - Aging tray for plasma display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aging tray which can be used in common for aging of plasma display panels(PDP) having different panel sizes. SOLUTION: The aging tray is constituted with a short bar electrode which makes each electrode group prepared on outskirts of all sides of PDP short- circuited respectively, supplies voltage to those electrode groups, and lights all discharging cells of the PDP for a predetermined time. These short bar electrodes are constituted with a set of common electrodes (2, 5) which are used for the electrode groups of the adjoining sides of the PDP and for two or more size panels in common, and another two or more sets of electrodes (3, 4, 6, and 7) respectively corresponding to two or more size panels while being used for the electrode groups of the remaining adjoining of the PDP. These two or more sets of the electrodes are enabled to be detached and attached according to panel sizes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aging tray for a plasma display panel, and more particularly to a structure of an aging tray for a plasma display panel in which plasma display panels of different sizes can be aged with the same tray.

[0002]

2. Description of the Related Art Generally, a plasma display panel (hereinafter referred to as a PDP), for example, an AC type PDP having a three-electrode structure.
A display electrode defining a display discharge cell is covered with a dielectric layer such as a low-melting glass, and at the time of display, a discharge cell for an address to be illuminated by a write address method or an erase address method. After selectively accumulating wall charges, a discharge sustaining voltage is alternately applied to a pair of display electrodes to periodically generate a discharge.

In a PDP, aging is performed in which a discharge gas is sealed and all discharge cells on a display surface are continuously turned on for a predetermined time after panel assembly is completed.
By performing the aging, the surface layer portion of the dielectric layer is physically and chemically cleaned, the discharge starting voltage is reduced, the driving is facilitated, and the discharge is stabilized.

For aging of a PDP, a tray having a connection terminal for an aging power supply is used.

FIG. 5 is a perspective view of an aging tray of a PDP disclosed in Japanese Patent Application Laid-Open No. 11-213891. As shown in FIG. 5, the aging tray is connected to the panel 100.
Is a fixed size suitable for the size of
A fixed electrode 103 having a mesh electrode 101 corresponding to the side and a panel holder 102 is provided. Aging is performed by applying to the panel 100 a voltage having a predetermined waveform from a voltage supplied from an aging voltage source by an aging tray.

[0006]

When aging PDPs of various sizes using a conventional aging tray as shown in FIG. 5, it is necessary to prepare an aging tray for each panel size. 6A and 6B are plan views of such an aging tray. FIG. 6A is a plan view of a small-size panel tray (shown by reference numeral 100b), and FIG. 6B is a plan view of a large-size panel tray (shown by reference numeral 100a). It is a top view.

As described above, the conventional aging tray requires an aging tray for each panel size.
Capital investment increases. Further, when producing a panel of a specific size, an aging tray for a panel of another size cannot be used, and there is a problem that the operation rate and productivity of the equipment are reduced. Furthermore, it is necessary to adjust the number of panels to be supplied to the aging process for each product type, and there is a problem that a production plan becomes complicated.

An object of the present invention is to provide an aging tray for a PDP which solves the above-mentioned problems of the prior art.

[0009]

According to the first aspect of the present invention, the P
The aging tray of the DP is for short-circuiting each electrode group provided around the four sides of the plasma display panel to supply a voltage to the electrode group, and for lighting all the discharge cells of the plasma display panel for a predetermined time. A short bar electrode, wherein the short bar electrode is for a group of electrodes on adjacent sides of the plasma display panel, and is a set of common electrodes commonly used for panels of a plurality of sizes; and the plasma display panel. And a plurality of sets of electrodes respectively corresponding to the plurality of sizes of panels for the remaining groups of electrodes adjacent to each other.

The aging tray of the PDP according to the second configuration of the present invention short-circuits each of the electrode groups provided on the four sides of the plasma display panel to supply a voltage to the electrode groups, and supplies all of the plasma display panels. A short bar electrode for lighting the discharge cell for a predetermined time, and a plurality of the short bar electrodes are provided so as to be line-symmetrically opposed to a plurality of sizes of the plasma display panel. It is characterized by.

In the aging tray of the plasma display panel having the above-mentioned first and second configurations of the present invention, the short bar electrode is fixed to the bottom surface of the aging tray by a fixing means such as a screw, a hook or a connector. It is arranged at the upper end of the electrode support fixed so as to be perpendicular to the electrode support. The short bar electrode can be easily removed from the aging tray by removing these fixing means.

Further, in the aging tray of the plasma display panel having the above-described first and second configurations of the present invention, the electrode posts are located at a position lower than the mounting height of the plasma display panel to the aging tray. And the number of steps for removing the electrode support can be reduced.

In the present invention, by employing the above-described configuration, the aging tray can be shared in the production of PDPs of various models, so that capital investment can be suppressed, and the operating rate and productivity of the equipment can be improved.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the PDP aging tray of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a PDP according to a first embodiment of the present invention.
3A is a plan view of an aging tray of the PDP, and FIG.
FIG. 2 is a plan view of an aging tray of the PDP with the first panel attached, and FIG. 2C is a plan view of the aging tray of the PDP with the second panel (larger than the first panel) installed.

As shown in FIG. 1A, the PD of this embodiment
The aging tray 1 of P short-circuits the electrode groups on each side provided around the four sides of the rectangular PDP, and
It has a plurality of short bar electrodes for aging the DP, and the short bar electrodes are for a group of electrodes on adjacent sides of the PDP and are used as a set of common bar electrodes commonly used for a plurality of size panels. The electrodes (the first common electrode 2 and the second common electrode 5) and a plurality of sets of electrodes (FIG. 1) for the electrode group on the remaining side adjacent to the plasma display panel and corresponding to panels of a plurality of sizes, respectively. (A) is composed of a set of a first electrode 3 and a third electrode 6 and a set of two electrodes of a second electrode 4 and a fourth electrode 7). These short bar electrodes can be attached and detached according to the panel size. Since the first common electrode 2 and the second common electrode 5 are commonly used for various panels, they are not usually removed.

In FIG. 1A, reference numeral 8 denotes an installation position of a panel (referred to as a first panel) using the common electrodes 2 and 5, the first electrode 3 and the third electrode 6; Two common electrodes 2, 5, a second electrode 4, and a fourth electrode 7
Shows the installation position of a panel (referred to as a second panel) using.

FIG. 2 shows the first and second common electrodes and the first to second common electrodes.
It is sectional drawing which shows the structure of the electrode part of a 4th electrode. Each electrode is composed of a mesh electrode 21 made of steel fiber.
Is fixed to the bottom surface of the electrode support 30 by a fixing means 23 such as a screw, a hook or a connector, and is fixed to the lower surface of the horizontal processing portion 30a at the upper end of the vertically installed electrode support 30. The height of the electrode support 30 can be adjusted up and down, and the mesh electrode 21 can be adjusted.
The height of the can be adjusted.

A panel holder 22 for holding a panel attached to the aging tray 1 from below is provided at a predetermined height of the electrode support 30. By adjusting the height of the electrode support 30 by inserting a panel between the panel holder 22 and the mesh 21, the mesh electrode 21 is removed.
Can be brought into contact with the collective electrode (not shown) of the panel at an appropriate pressure. The electrode support 30 has several tens.
Aging tray 1
The distance between the electrodes installed in the panel is widened so that the panel can be easily installed. Aging tray 1
In FIG. 1, connection wiring and a power supply for applying a voltage from a power supply to each electrode (short bar electrode) are arranged, but these are omitted in FIGS. 1 and 2.

Next, a method of mounting a panel using the aging tray 1 of FIG. 1A will be described with reference to FIGS.
This will be described with reference to FIG.

When the first panel 10 (small size) is mounted on the aging tray 1 as shown in FIG. 1B, the first common electrode 2, the first electrode 3, and the second common electrode 5 Then, the first panel 10 is fixed by the third electrode 6.
In this case, the second panel 11 is provided outside the first panel 10.
The second electrode 4 and the fourth electrode 7 provided for the first panel 10 do not interfere with the first panel 10, and thus may be attached to the aging tray 1 as they are.

As shown in FIG. 1C, when a second panel 11 larger than the first panel 10 is attached to the aging tray 1, the first electrode 3 and the third electrode 3 for the first panel 10 are used. The electrode 6 can be used as the aging tray 1 of the second panel 11 by removing the electrode 6 so as to interfere with the second panel. The second panel 11 is fixed by the first common electrode 2, the second common electrode 5, the second electrode 4, and the fourth electrode 7.

Next, an aging tray of a PDP according to a second embodiment of the present invention will be described with reference to the drawings.

The aging tray of the PDP according to the present embodiment has a plurality of short bar electrodes for inspecting the PDP in the same manner as FIG.
A pair of common electrodes (a first common electrode 2 and a second common electrode 5) for an electrode group on an adjacent side of P and commonly used for panels of a plurality of sizes; A plurality of sets of electrodes (FIG. 1) for the electrode groups on the remaining sides adjacent to each other and corresponding to panels of a plurality of sizes.
(A) shows a set of the first electrode 3 and the third electrode 6 and the second electrode 3 and the third electrode 6.
Electrode 4 and a fourth electrode 7), each of which is connected to an aging tray panel (PD).
A major feature is that the device can be rotated downward to a position lower than the height at which P) is mounted.

FIG. 3 is a sectional view showing the structure of the electrode portions of the first electrode 3 and the second electrode 4. 3 that are the same as in FIG. 2 represent the same components as in FIG. In the figure, reference numeral 22a denotes a panel holder, and reference numeral 23a denotes a fixing means of the electrode support 30 on which the first electrode 3 is installed. When attaching the second panel 11 to the aging tray 1 as shown in FIG.
Although the electrodes 3 interfere with the second panel 11, the interference with the second panel 11 can be avoided by rotating the first electrode 3 downward. As described above, in the present embodiment, aging of the second panel 11 can be performed without removing the first electrode (the same applies to the third electrode). When the aging of the first panel 10 is performed, the aging tray for the first panel 10 is obtained by rotating the first electrode 3 rotated downward and setting the electrode support 30 vertically. . Therefore, the aging tray of the PDP according to the present embodiment has an effect that the number of steps of the removal operation can be reduced as compared with the aging tray of the PDP according to the first embodiment.

Next, the PDP according to the third embodiment of the present invention
The aging tray will be described with reference to the drawings.
FIG. 4 is a plan view of an aging tray of the PDP according to the third embodiment of the present invention. The aging tray of the PDP of the present embodiment is the same as the aging tray of the first and second embodiments.
It has a structure combining P aging trays. In the figure, reference numeral 3a denotes a fifth electrode, reference numeral 4a denotes a sixth electrode, reference numeral 6a denotes a seventh electrode, and reference numeral 7a denotes an eighth electrode.

As shown in FIG. 4, the aging tray of the PDP of the present embodiment has a plurality of opposingly arranged aging trays for aging the PDP by short-circuiting the electrode groups on each side provided around the PDP. Sets of short bar electrodes (3-3a, 6-6a first panel electrodes, 4-4a,
7-7a), and these electrodes can be attached or detached or rotated downward according to the size of the panel so as not to interfere with the panel. The aging tray of this embodiment has the effect of preventing meandering and oblique conveyance during conveyance since the center of gravity is at the center.

[0028]

As described above, the aging tray of the PDP of the present invention has the following effects when producing PDPs of various sizes. (1) The aging tray can be shared, and the capital investment can be reduced. (2) The floor area for placing unused aging trays can be reduced. (3) Since all aging trays contributing to production can be used, the operation rate and productivity are improved.

[Brief description of the drawings]

FIG. 1 is a plan view of an aging tray of a PDP according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a structure of an electrode portion of an aging tray of the PDP according to the first embodiment of the present invention.

FIG. 3 is a sectional view showing a structure of an electrode portion of an aging tray of a PDP according to a second embodiment of the present invention.

FIG. 4 is a plan view of an aging tray of a PDP according to a third embodiment of the present invention.

FIG. 5 is a perspective view of an aging tray of a conventional PDP.

FIG. 6 is a plan view of an aging tray of a conventional PDP.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Aging tray 2 1st common electrode 3 1st electrode 3a 5th electrode 4 2nd electrode 4a 6th electrode 5 2nd common electrode 6 3rd electrode 6a 7th electrode 7 4th electrode 7a 8th electrode 8 1st panel installation position 9 2nd panel installation position 10 1st panel 11 2nd panel 21,101 mesh electrode 22,22a, 102 Panel presser 23,23a Fixing means 100 Panel 103 Fixation Electrodes 100a Tray for small size panel 100b Tray for large size panel

Claims (8)

[Claims] 1. A short-circuit for short-circuiting each electrode group provided on four sides of a plasma display panel to supply a voltage to the electrode group and lighting all discharge cells of the plasma display panel for a predetermined time. A bar electrode, wherein the short bar electrode is for a group of electrodes on adjacent sides of the plasma display panel, and is a set of common electrodes commonly used for panels of a plurality of sizes; and An aging tray for a plasma display panel, comprising: a plurality of sets of electrodes each corresponding to a plurality of sizes of panels, for an electrode group on an adjacent remaining side. 2. The aging tray of claim 1, wherein the short bar electrode is detachable from the aging tray. 3. The short bar electrode is fixed to a bottom surface of the aging tray by a screw, a hook, or a connector, and is fixed to an upper end of an electrode column vertically arranged from the bottom surface. Item 3. An aging tray for a plasma display panel according to item 1 or 2. 4. The aging tray of a plasma display panel according to claim 3, wherein said electrode support is rotatable downward so as to be lower than a mounting height of said plasma display panel to said aging tray. 5. A short circuit for short-circuiting each of the electrode groups provided around the four sides of the plasma display panel to supply a voltage to the electrode groups and lighting all discharge cells of the plasma display panel for a predetermined time. An aging tray for a plasma display panel, comprising a bar electrode, wherein a plurality of the short bar electrodes are provided in line symmetry with each other corresponding to a plurality of size panels of the plasma display panel. 6. The aging tray according to claim 5, wherein the short bar electrode is detachable from the aging tray. 7. The short bar electrode is fixed to a bottom surface of the aging tray by a screw, a hook, or a connector, and is fixed to an upper end of an electrode column vertically arranged from the bottom surface. Item 7. An aging tray for a plasma display panel according to item 5 or 6. 8. The aging tray of a plasma display panel according to claim 7, wherein said electrode support can be rotated downward so as to be lower than a height at which said plasma display panel is mounted on said aging tray.