JP4241179B2 - Lighting stabilization processing equipment for plasma display panels - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plasma display panel (hereinafter abbreviated as “PDP” where appropriate) used in a display device such as a television, and in particular, a PDP lighting stabilization process (hereinafter referred to as “PDP”). The present invention relates to an aging technique for PDP that is appropriately referred to as “aging”.
[0002]
[Prior art]
A plasma display panel (PDP) is formed by bonding a plurality of substrates. A gas discharge is generated by enclosing a gas in a gap between the bonded substrates and applying a voltage to the gap. The plasma discharge is used to turn on the PDP.
[0003]
Usually, a PDP is provided with a scanning electrode for generating a discharge and a data electrode (also referred to as an address electrode) for designating a PDP region (hereinafter referred to as “cell” as appropriate) and lighting the designated cell. Has been. In order to generate a plasma discharge by applying a voltage to the scan electrode, for example, a voltage of about 200V to 300V is required. The voltage required to generate plasma discharge varies depending on the cell. For example, some cells are discharged by lighting at about 200V and others are not discharged even when about 250V is reached. In particular, the above phenomenon is noticeable in a new PDP immediately after manufacture.
[0004]
Thus, when the manufacturing process of the PDP is completed, aging is performed to stabilize the lighting of the PDP by connecting the lighting power supply to the scan electrodes at once and lighting the PDP over the entire surface for a predetermined period (for example, about 12 to 24 hours). Processing is performed. That is, in a new PDP immediately after manufacturing, if the voltage necessary for generating plasma discharge is continuously applied to the scan electrode for a certain period, the voltage converges to a predetermined voltage. If the PDP is turned on over the entire period using this phenomenon, the voltage varies from cell to cell immediately after lighting, but the voltage becomes uniform in all cells after a predetermined period. As a result, it is possible to stabilize the lighting of the PDP by performing the aging process.
[0005]
Actually, since the potential of the data electrode is displaced when a voltage is applied to the scan electrode, the voltage is also applied to the data electrode side to forcibly control the voltage so that it becomes the ground potential or about half of the voltage. Yes.
[0006]
In order to electrically connect to these scan electrodes and data electrodes described above, a rectangular short bar electrode group is disposed on the aging tray, and by applying a voltage to these short bars, A voltage is applied to these scan / data electrodes. These shorts are constituted by two sets of electrode groups facing each other for both scanning and data. Therefore, it is necessary to change the length of each short bar according to the size of the PDP, and accordingly, the same number of trays as the size types are required.
[0007]
  Therefore, one set of short bars is fixed out of the two sets of short bars so that the various sizes of the PDP can be accommodated, and the short bars for scan electrodes are used in the remaining sets of short bars.TheShort bar for data electrode while parallel translation in diagonal directionTheThere is something that translates in the opposite direction (see, for example, Patent Document 1).
  In addition, there is a configuration in which each short bar is configured to be detachable from the tray and each short bar is replaced according to the size of the PDP (for example, see Patent Document 2).
[0008]
[Patent Document 1]
JP 2002-313235 A (page 5-6, FIG. 1)
[0009]
[Patent Document 2]
Japanese Patent Laid-Open No. 2002-056778 (page 3, FIG. 1-4)
[0010]
[Problems to be solved by the invention]
However, in the case of such a configuration, there are the following problems.
In the case of the above-described Patent Document 1, even if a short bar for a scanning electrode and a short bar for a data electrode that are not fixed are translated and resized, the length of each short bar is the same. Therefore, there are scan electrodes that cannot be applied.
In the case of Patent Document 2 described above, a short bar is required for the replacement, and it takes time and effort to attach and detach.
[0011]
The present invention has been made in view of the above circumstances, and provides a lighting stabilization processing apparatus for a plasma display panel that can accommodate various sizes of plasma display panels (PDPs) and can be easily attached. For the purpose.
[0012]
[Means for Solving the Problems]
In particular, when considering automation of the device, this is an indispensable technique for an automatic electrode attaching / detaching device that can be used for various panels without replacing the electrode. As a result of intensive studies to solve the above problems, the present inventor has obtained the following knowledge.
That is, as shown in the perspective view of FIG. 15, the plasma display panel (PDP) 101 is formed by bonding the front substrate 102 and the rear substrate 103 together. Below the PDP 101, an aging tray 104 (see FIG. 16) on which the PDP 101 is placed is disposed. 16A is a cross-sectional view taken along the line CC of FIG. 15, and FIG. 16B is a cross-sectional view taken along the line DD of FIG. As shown in FIG. 16A, the tray 104 includes a scanning electrode gripping member 106 provided with a scanning electrode short bar 105, and a data electrode short bar 107 as shown in FIG. Two data electrode gripping members 108 each having the above are disposed.
[0013]
As shown in FIG. 16, both gripping members 106 and 108 are arranged on the tray 104 so as to face each other, and the short bars 105 and 107 provided on the gripping members 106 and 108 are also faced to each other. Arranged on the tray 104. The scanning electrode gripping member 106 grips the front substrate 102 from both sides, and the data electrode gripping member 108 grips the back substrate 103 from both sides. At this time, the front substrate 102 protrudes from the back substrate 103 along the opposing direction of the short bar 105 so that the scanning electrode short bar 105 does not come into contact with the back substrate 103, and only the portion where the electrodes are connected. In order to prevent the data electrode short bar 107 from coming into contact with the front substrate 102, the back substrate 103 protrudes from the front substrate 102 along the opposing direction of the short bar 107 only at the portion where the electrode is connected.
[0014]
Therefore, when the substrates 102 and 103 are gripped, the lower surface of the front substrate 102 and the upper surface of the scanning electrode short bar 105 are in contact with each other and are electrically connected, and the upper surface of the rear substrate 103 and the data electrode are connected. The lower surface of the short bar 107 contacts and is electrically connected. Further, when the substrates 102 and 103 are not gripped, the short bar 105 is positioned below the lower surface of the front substrate 102 and the short bar 107 is positioned above the upper surface of the rear substrate 103. From this, it can be seen that the data electrode short bar 107 is always positioned above the scan electrode short bar 105.
[0015]
  Therefore, by utilizing the fact that the data electrode short bar 107 is always positioned above the scan electrode short bar 105, the short bars 105, 107 are made to intersect each other and are surrounded by the short bars 105, 107. The idea was to change the size of the area to be arbitrarily changed. The present invention based on such knowledge has the following configuration.
  That is, the invention described in claim 1 is formed by bonding a plurality of substrates, enclosing gas in a gap between the bonded substrates, and applying a voltage to the gap to generate plasma discharge. By applying a voltage to the scan electrode for generating plasma discharge and the data electrode for lighting a specified area, the plasma display panel to be turned on is lit for a predetermined period of time on the entire surface of the plasma display panel. A plasma display panel lighting stabilization processing apparatus that performs display panel lighting stabilization processing, wherein two sets of electrodes are configured to face each other.Short bar for electrodeAnd two sets of electrode groups facing each otherShort bar for electrodeAnd each facing scanShort bar for electrodeTwo sets of scans by relatively moving in the opposite direction onlyShort bar for electrodeFirst displacement means for displacing the relative distance between them and each facing dataShort bar for electrode2 sets of data by relatively moving in the opposite direction onlyShort bar for electrodeSecond displacement means for displacing the relative distance between them, and scanningShort bar for electrodeIs configured to be electrically connectable to the scan electrode of the plasma display panel, and dataShort bar for electrodeIs configured to be electrically connectable to the data electrode of the plasma display panel, and each set of scanningShort bar for electrodeAnd dataShort bar for electrodeAre configured orthogonal to each other and scanShort bar for electrodeAnd dataShort bar for electrodeInsulating members are respectively interposed at the intersections.
[0016]
  [Operation / Effect] According to the first aspect of the present invention, scanningShort bar for electrodeThe two electrode groups are configured so as to face each other, and the data electrode group is configured so that two sets of electrode groups face each other. Each of the scans opposed by the first displacement meansShort bar for electrodeTwo sets of scans by relatively moving in the opposite direction onlyShort bar for electrodeThe relative distance between them is displaced, and the second displacement meansShort bar for electrode2 sets of data by relatively moving in the opposite direction onlyShort bar for electrodeDisplace the relative distance between. Each set of scansShort bar for electrodeAnd dataShort bar for electrodeAre orthogonal to each other, so the first and second displacement means scanShort bar for electrodeAnd dataShort bar for electrodeThe size of the area surrounded by can be arbitrarily changed. Therefore, after changing the size of the above-mentioned area by the first and second displacement means according to the size of the plasma display panel (PDP), the scanning electrode of the PDP is scanned.Short bar for electrodeIs electrically connected to the PDP data electrode.Short bar for electrodeElectrically connect to
[0017]
  As a result, if the size is changed, the electrically connectable portions in both electrode groups are changed accordingly, so that the problem that there are electrodes that cannot be applied can be solved. Further, even if the size is changed, the lengths of both electrode groups themselves are not changed, so that an electrode group to be replaced according to the length is not necessary, and attachment / detachment work on the electrode groups is simplified. Each set of scansShort bar for electrodeAnd dataShort bar for electrodeBy configuring them orthogonal to each otherShort bar for electrodeAnd dataShort bar for electrodeAs a result of contact between the two electrode groups via each crossing portion, they are electrically connected to each other. However, such contact can be prevented by interposing an insulating member at each crossing portion. By comprising in this way, it can respond to the various sizes of a plasma display panel (PDP), and can be attached easily.
[0018]
The present specification also discloses the following lighting stabilization processing method (PDP aging method) for a plasma display panel.
[0019]
  (1) For a plasma display panel that is formed by bonding a plurality of substrates, gas is sealed in the gap between the bonded substrates, and a voltage is applied to the gap, thereby generating plasma discharge and lighting the plasma display panel. Then, a voltage is applied to the scan electrode that generates plasma discharge and the data electrode that lights a specified region, and the entire surface of the plasma display panel is turned on for a predetermined period of time, thereby stabilizing the lighting of the plasma display panel. A lighting stabilization processing method for a plasma display panel,
  (A) Scan that is configured to be electrically connectable to the scan electrode of the plasma display panel, and in which two sets of electrodes are opposed to each other.Short bar for electrodeAbout each scanShort bar for electrodeTwo sets of scans by relatively moving in the opposite direction onlyShort bar for electrodeDisplace the relative distance between and scanShort bar for electrodeElectrically connecting to the scan electrode;
  (B) Data configured to be electrically connectable to the data electrode of the plasma display panel, and two sets of electrode groups facing each other.Short bar for electrodeAbout each facing dataShort bar for electrode2 sets of data by relatively moving in the opposite direction onlyShort bar for electrodeDisplace the relative distance between the dataShort bar for electrodeElectrically connecting to the data electrode;
  (C) ScanShort bar for electrodeAnd dataShort bar for electrodeA process of interposing insulating members at each intersection of
  (D) A lighting stabilization processing method for a plasma display panel, wherein the lighting stabilization processing is performed after the steps (a) to (c).
[0020]
  According to the invention described in the above (1), in the process of (a), each of the opposed scansShort bar for electrodeTwo sets of scans by relatively moving in the opposite direction onlyShort bar for electrodeDisplace the relative distance between and scanShort bar for electrodeAre electrically connected to the scan electrodes. On the other hand, in the process of (b)Short bar for electrode2 sets of data by relatively moving in the opposite direction onlyShort bar for electrodeDisplace the relative distance between the dataShort bar for electrodeIs electrically connected to the data electrode. Therefore, the scanning electrode is scanned in the process of (a) and (b).Short bar for electrodeAnd connect the data electrode to the dataShort bar for electrodeScanning with electrical connection toShort bar for electrodeAnd dataShort bar for electrodeThe size of the area surrounded by can be arbitrarily changed.
[0021]
  As a result, if the size is changed, the electrically connectable portions in both electrode groups are changed accordingly, so that the problem that there are electrodes that cannot be applied can be solved. Further, even if the size is changed, the lengths of both electrode groups themselves are not changed, so that an electrode group to be replaced according to the length is not necessary, and attachment / detachment work on the electrode groups is simplified. ScanShort bar for electrodeAnd dataShort bar for electrodeAs a result of the contact between both electrode groups through each crossing portion, the electrodes are electrically connected to each other. However, in the process of (c), it is possible to prevent such contact by interposing an insulating member at each crossing portion. it can. By comprising in this way, it can respond to the various sizes of a plasma display panel (PDP), and can be attached easily.
[0022]
The order in which the process (a) and the process (b) are performed is not particularly limited, and the process (b) may be performed after the process (a), or after the process (b) (a ) Or the processes (a) and (b) may be performed substantially in parallel.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a PDP lighting stabilization processing apparatus (aging processing apparatus) according to the present invention will be described with reference to the drawings.
1 is a schematic perspective view showing the configuration of the apparatus of this embodiment, FIG. 2 (a) is a cross-sectional view taken along line AA in FIG. 1, and FIG. 2 (b) is a cross-sectional view taken along line BB in FIG. FIG. 3A is an enlarged sectional view of the scanning electrode gripping member and the floating support in FIG. 2A, and FIG. 3B is for data in FIG. 2B. FIG. 4 is a plan view schematically showing each electrode of the PDP, and FIG. 5 (a) is a plan view of a tray when the panel size is large, FIG. 5B is a plan view of the tray when the panel size is small.
[0024]
  As shown in FIGS. 1 to 3, the apparatus of the embodiment includes an aging tray 11, a scanning electrode gripping member 12, a scanning electrode short bar 13, a data electrode gripping member 14, and a data electrode short bar 15. And so on. The tray 11 is a table on which the plasma display panel (PDP) 1 is placed, and is constituted by a column 11a that abuts and supports the PDP 1, and a pedestal 11b on which the column 11a is erected..
[0025]
On the other hand, the PDP 1 is formed by bonding the front substrate 2 and the back substrate 3 as shown in FIGS. The front substrate 2 is made of, for example, glass, and the back substrate 3 is made of the same material as the front substrate 2.
[0026]
On the lower surface of the front substrate 2, as shown in FIG. 4, a scanning electrode 4 including an X electrode 4a and a Y electrode 4b, a transparent dielectric layer (not shown), and a protective layer are laminated in order from the top. The scanning electrode 4 is, for example, an ITO film (alloy oxide film of isodium and tin) or SnO.₂It is formed of (tin oxide film) or the like, is formed of a transparent dielectric layer, for example, a low melting point glass paste, and the protective layer is formed of, for example, MgO (magnesium oxide) or the like. The protective layer is a layer for protecting the scan electrode 4 from being directly exposed to plasma.
[0027]
On the upper surface of the back substrate 3, as shown in FIG. 4, data electrodes 5 and partition walls called “ribs” (not shown) are stacked in order from the top. The data electrode 5 is stacked so as to be orthogonal to the scanning electrode 4. The grooves surrounded by the adjacent barrier ribs are stacked so as to be positioned immediately above the data electrodes 5. In the grooves described above, fluorescent layers (not shown) formed of phosphors are stacked along the partition walls. The data electrode 5 is made of, for example, Ag (silver) paste or Al, and the partition walls are made of, for example, RuO.₂(Lutesium oxide) paste or a mixture of low melting point glass and metal oxide such as alumina.
[0028]
When the PDP 1 is a color, the phosphor layer is regularly arranged with phosphors of three colors R (Red), G (Green), and B (Blue) for each partition wall. The phosphor described above is formed of a “matrix” and a “light emission center” (not shown), and the above-mentioned matrix is ionized by ultraviolet rays generated by plasma discharge, and the matrix collides with the light emission center. When the light emission center is excited by the collision of the matrix and the excited light emission center returns to the ground state, visible light is generated, and the visible light is transmitted through the surface of the PDP 1 and is lit from the surface of the PDP 1.
[0029]
Returning to the description of the embodiment apparatus, as shown in FIGS. 1 to 3, the scanning electrode gripping member 12 grips the front substrate 2 of the PDP 1 from both sides. The scanning electrode 4 (see FIG. 4) disposed on the front substrate 2 is electrically connected. Similarly, the data electrode gripping member 14 grips the back substrate 3 of the PDP 1 from both sides, and the data electrode short bar 15 and the data electrode 5 disposed on the back substrate 3 when the grip is held (see FIG. 4). Are electrically connected to each other.
[0030]
The scanning electrode gripping member 12 is composed of two metal plates 12a and 12b each configured to be movable up and down. Both sheet metals 12a, 12b are bent in an L shape.
[0031]
As shown in FIGS. 2 (a) and 3 (a), a pressing member 12c for pressing the front substrate 2 from the upper surface is disposed on the lower surface of the upper sheet metal 12a, and on the upper surface of the lower sheet metal 12b. A short bar 13 for scanning electrodes is provided. The presser 12c is formed of an elastic body typified by rubber.
[0032]
As shown in FIG. 1, the length of the upper sheet metal 12 a in the longitudinal direction is shorter than the length of the short bar 13 disposed on the lower sheet metal 12 b in the longitudinal direction. The length of the upper sheet metal 12a in the longitudinal direction may correspond to the minimum size of the various PDPs 1 to be aged, and the length of the short bar 13 disposed in the lower sheet metal 12b in the longitudinal direction is , Corresponding to the maximum size of PDP1. In this embodiment, the PDP1 having a panel size of 50 inches (127 cm) is set as the maximum size, and the PDP1 having a panel size of 35 inches is set as the minimum size. Accordingly, aging can be performed on a PDP 1 having a panel size of 35 to 50 inches (for example, a PDP 1 having a panel size of 42 inches).
[0033]
Further, a floating support 16 is disposed on the side surface of the lower sheet metal 12b. The floating support 16 includes a housing-like column support 16a attached to the side surface of the sheet metal 12b, and a fluororesin sheet 17 described later. And a spring 16c attached to the bottom surface of the support 16b. The support 16b and the spring 16c are accommodated in the support 16a. 2A and 3A, the floating support 16 does not appear. However, for convenience of explanation, the floating support 16 is represented on FIGS. 2A and 3A. To do.
[0034]
Two sets of scanning electrode gripping members 12 having such a configuration are disposed, and the scanning electrode gripping members 12 of each set are disposed to face each other. The scanning electrode short bars 13 disposed on the upper surface of the sheet metal 12b of each scanning electrode gripping member 12 are also disposed so as to face each other. Four sets of floating supports 16 are provided, and two sets are provided for each set of scanning electrode gripping members 12. The fluororesin sheet 17 is also provided with the same number of four as the floating support 16.
[0035]
Similarly to the scanning electrode gripping member 12, the data electrode gripping member 14 is composed of two metal plates 14a and 14b each configured to be movable up and down, and both the metal plates 14a and 14b are bent in an L shape. Is formed.
[0036]
As shown in FIGS. 2B and 3B, a short bar 15 for data electrodes is disposed on the lower surface of the upper sheet metal 14a, and a rear surface is disposed on the upper surface of the lower sheet metal 14b. A presser 14c for pressing the substrate 3 from the lower surface is provided. The presser 14c is formed of an elastic body like the presser 12c.
[0037]
Similarly to the two metal plates 12a and 12b of the scanning electrode gripping member 12, the length of the upper metal plate 14a in the longitudinal direction is shorter than the length of the short bar 15 disposed on the lower metal plate 14b in the longitudinal direction. Has been. The length with respect to the longitudinal direction of the sheet metal 14a is made to correspond to the minimum size of the PDP1, and the length with respect to the longitudinal direction of the short bar 15 disposed on the sheet metal 14b is made to correspond to the maximum size of the PDP1.
[0038]
Two sets of data electrode gripping members 14 having such a configuration are disposed, and the data electrode gripping members 14 of each set are disposed to face each other. Data electrode short bars 15 respectively disposed on the lower surface of the sheet metal 14a of each data electrode holding member 14 are also disposed so as to face each other.
[0039]
Each fluororesin sheet 17 is in contact with the lower surface of the short bar 15 as described above. The column 16b to which the fluororesin sheet 17 is attached is pushed up by a spring 16c so that the fluororesin sheet 17 presses the lower surface of the short bar 15. The thickness of the fluororesin sheet 17 is 0.5 mm. The fluororesin sheet 17 corresponds to an insulating member in the present invention.
[0040]
In order to prevent the scanning electrode short bar 13 from coming into contact with the back substrate 3, as shown in FIG. 4, the front substrate 2 has a portion where the electrodes are connected along the opposing direction of the short bar 13 from the back substrate 3. In addition, the back substrate 3 protrudes from the front substrate 2 along the opposing direction of the short bar 14 so that the data electrode short bar 14 does not come into contact with the front substrate 2. Yes.
[0041]
As shown in FIGS. 2A and 2B, the pedestal 11b constituting the aging tray 11 includes a slide rail 18 extending in a direction opposite to the scanning electrode gripping member 12 and a data A slide rail 19 extending in the direction facing the electrode gripping member 14 is laid. Each scanning electrode gripping member 12 moves along the slide rail 18, and each data electrode gripping member 14 moves along the slide rail 19.
[0042]
Accordingly, each scanning electrode gripping member 12 is moved only in the facing direction by the slide rail 18, and accordingly, the scanning electrode short bar 13 is also moved in the facing direction, and the floating support 16 is also moved in the facing direction. In addition, each data electrode gripping member 14 is moved only in the facing direction by the slide rail 19, and accordingly, the data electrode short bar 15 is also moved in the facing direction, and the floating support 16 is also moved in the facing direction. The floating support 16 moves not only in the facing direction of the scanning electrode gripping member 12 but also in the facing direction of the data electrode gripping member 14. The slide rail 18 corresponds to the first displacement means in the present invention, and the slide rail 19 corresponds to the second displacement means in the present invention.
[0043]
Thus, by moving the respective short bars 13 and 15 in the respective opposing directions, the size of the region surrounded by the short bars 13 and 15 can be arbitrarily changed as shown in FIG. For example, when the size of the PDP 1 is as large as 50 inches, the area is as shown in FIG. 5A, and when the size of the PDP 1 is as small as 35 inches, the area as shown in FIG. 5B. It becomes. As apparent from FIGS. 1 to 5, each set of the scanning electrode short bar 13 and the data electrode short bar 15 is orthogonal to each other.
[0044]
Next, an aging operation procedure will be described with reference to the flowchart of FIG. 6 and the plan views of FIGS. 7 to 10 are plan views of the tray in each procedure. 7 to 10, the illustration of the scanning electrode / data electrode gripping members 12 and 14 is omitted.
[0045]
(Step S1) Move each short bar outward
As shown in FIG. 7A, the respective short bars 13 and 15 are moved to the opposite side to the facing direction, that is, to the outside.
[0046]
(Step S2) Place PDP
As shown in FIG. 7B, the support 11a (see FIG. 2) is abutted and supported to place the PDP 1 to be aged.
[0047]
(Step S3) Move the scanning electrode short bar
As shown in FIG. 8A, the scanning electrode short bar 13 is moved in the opposing direction. Specifically, when the scanning electrode gripping member 12 is moved along the slide rail 18 (see FIG. 2A), the sheet metal 12b on the lower side of the gripping member 12 (FIGS. 2A and 3A). The short bar 13 arranged in ()) also moves together. At this time, the floating support 16 (see FIG. 3A) disposed on the side surface of the sheet metal 12b and the fluororesin sheet 17 attached to the column 16b of the floating support 16 also move together.
[0048]
(Step S4) Setting a fluororesin sheet
As shown in FIG. 8B, when the short bar 13 moves to the electrode connection position of the front substrate 2 of the PDP 1, that is, to the projecting position of the front substrate 2, the floating support 16 and the fluororesin sheet 17 together with the sheet metal As shown in FIG. 9A, each fluororesin sheet 17 is directly under the lower surface of the data electrode short bar 15, that is, the scan electrode short bar 13 and the data. It sets so that it may be located in each cross | intersection part with the short bar 15 for electrodes. Step S4 corresponds to the process (c) in the present invention.
[0049]
(Step S5) Connect the scanning electrode short bar
The front substrate 2 is clamped and supported by the scanning electrode gripping member 12 in order to connect the scanning electrode short bar 13 and the scanning electrode 4 (see FIG. 4) of the front substrate 2. Specifically, when the upper metal plate 12a is lowered, the presser 12c presses the front substrate 2 from the upper surface, and when the lower metal plate 12b is raised, the short bar 13 abuts the front substrate 2 on the lower surface and short-circuits. The bar 13 and the scan electrode 4 are electrically connected. Steps S3 and S5 correspond to the process (a) in the present invention.
[0050]
At this time, each floating support 16 is also raised together with the fluororesin sheet 17 in conjunction with the rise of the lower sheet metal 12b, and each raised fluororesin sheet 17 is short-circuited for the data electrode as shown in FIG. It contacts the lower surface of the bar 15.
[0051]
(Step S6) Move the short bar for the data electrode
As shown in FIG. 9B, the data electrode short bar 15 is moved in the facing direction. Specifically, when the data electrode gripping member 14 is moved along the slide rail 19 (see FIG. 2B), the sheet metal 14a on the upper side of the gripping member 14 (FIGS. 2B and 3B). The short bar 15 arranged in the reference) also moves in conjunction with it. At this time, the fluororesin sheet 17 pressed against the lower surface of the short bar 15 also moves in conjunction with the intersection of the scan electrode short bar 13 and the data electrode short bar 15.
[0052]
(Step S7) Connect the short bar for the data electrode
As shown in FIG. 10, if the data electrode short bar 15 moves to the electrode connection position of the back substrate 3 of the PDP 1, that is, to the protruding position of the back substrate 3, the data of the short bar 15 and the back substrate 3. The back substrate 3 is clamped and supported by the data electrode gripping member 14 to connect the electrode 5 (see FIG. 4). Specifically, when the lower sheet metal 14b is raised, the presser 14c presses the rear substrate 3 from the lower surface, and when the upper sheet metal 14a is lowered, the short bar 15 contacts the rear substrate 3 from the upper surface, causing a short circuit. The bar 15 and the data electrode 5 are electrically connected. Steps S6 and S7 correspond to the process (b) in the present invention.
[0053]
(Step S8) Aging
While the short bar 13 and the scanning electrode 4 are electrically connected and the short bar 15 and the data electrode 5 are electrically connected, a voltage is applied to each short bar 13 and 15 from a driver circuit (not shown). Apply. By applying a voltage to each of the short bars 13 and 15, a voltage is applied to the scan electrode 4 and the data electrode 5 at once, and the entire surface of the PDP 1 is lit and an aging process is performed. Step S8 corresponds to the process (d) in the present invention.
[0054]
According to the embodiment apparatus having the above-described configuration, the scanning electrode short bar 13 is configured so that two sets of electrode groups face each other, and the data electrode short bar 15 includes two sets of electrode groups. It is configured to face each other. The slide rail 18 displaces the distance between the two pairs of short bars 13 by moving the opposed short bars 13 only in the opposed direction, and the slide rail 19 moves the opposed short bars 15 only in the opposed direction. By moving it, the distance between the two sets of short bars 15 is displaced. Since each set of the scanning electrode short bar 13 and the data electrode short bar 15 is configured to be orthogonal to each other, the size of the area surrounded by the short bars 13 and 15 on the slide rails 18 and 19 is arbitrary. Can be changed. Therefore, after changing the size of the above-mentioned area with the slide rails 18 and 19 according to the size of the PDP 1, the scan electrode 4 of the PDP 1 is electrically connected to the short bar 13 for the scan electrode and the data electrode of the PDP 1 5 is electrically connected to the data electrode short bar 15.
[0055]
As a result, if the size is changed, the electrically connectable portions in both the short bars 13 and 15 are changed as shown in FIG. 5, so that the problem that there are electrodes that cannot be applied is solved. be able to. Further, even if the size is changed, the lengths of both the short bars 13 and 15 are not changed. Therefore, a replacement short bar (electrode group) is not required according to the length, and the attaching / detaching work for the short bar is simplified.
[0056]
The scanning electrode short bar 13 and the data electrode short bar 15 are configured so as to be orthogonal to each other, so that the scanning electrode short bar 13 and the data electrode short bar 15 correspond to each intersection. As a result of the contact between the short bars 13 and 15, they are electrically connected to each other, but such contact can be prevented by interposing a fluororesin sheet 17 that is an insulating member at each intersection. With this configuration, it is possible to deal with various sizes of PDPs (plasma display panels) and easily attach them.
[0057]
The present invention is not limited to the above embodiment, and can be modified as follows.
[0058]
(1) In the above-described embodiment, each of the gripping members 12 and 14 has a structure sandwiched from above and below as shown in FIGS. 2 and 3, but is not limited to such a structure. For example, as shown in FIG. 11, the sheet metal 12a of the scanning electrode gripping member 12 (the sheet metal 14a in the case of the data electrode gripping member 14) is rotated and then slightly lowered and gripped. Good.
[0059]
(2) In the above-described embodiment, the data electrode short bar 15 is moved and the aging is performed after the scan electrode short bar 13 is moved. That is, after the data electrode short bar 15 is moved, the scan electrode short bar 13 may be moved to perform aging. Further, after each set of short bars 13 and 15 is moved, the remaining sets of short bars 13 and 15 may be moved to perform aging.
[0060]
(3) In the above-described embodiment, as shown in FIG. 5 and FIGS. 7 to 10, the respective short bars 13 and 15 have moved in the opposite direction, but as shown in FIG. 13 and 15 may be fixed and only the remaining pair of short bars 13 and 15 may be moved in the opposing direction, or only one short bar 13 for scanning electrodes may be fixed as shown in FIG. The other scanning electrode short bar 13 and data electrode short bar 15 may both be moved in opposite directions, or only one data electrode short bar 15 is fixed as shown in FIG. The other data electrode short bar 15 and scan electrode short bar 13 may both be moved in opposite directions. That is, the opposed short bar 13 for each scanning electrode is relatively moved only in the opposing direction to displace the relative distance between the two pairs of scanning electrode short bars 13, and the opposed short bar 15 for each data electrode. The relative distance between the two pairs of data electrode short bars 15 may be displaced by relatively moving only in the opposite direction.
[0061]
(4) In the above-described embodiment, the insulating member interposed at each intersection of the short bars 13 and 15 is the fluororesin sheet 17. However, the insulating member is not limited to the fluororesin as long as the interposing member is an insulating member. The form of the member is not limited to the sheet. However, if the thickness is too thick, it is difficult to electrically connect each short bar and each electrode of the PDP. Therefore, the thickness is preferably about 0.5 mm.
[0062]
(5) The present invention may be applied to an AC (alternating current) type PDP or a DC (direct current) type PDP. In the case of the AC type PDP, the driver circuit which is a lighting power source is connected to an AC power source, and in the case of the DC type PDP, the driver circuit is connected to a DC power source.
[0063]
(6) The present invention may be applied to a surface discharge type PDP or a counter discharge type PDP. In the case of a surface discharge type PDP, the X electrode 4a and the Y electrode 4b (see FIG. 4) are formed on the same front substrate 2 as in the above-described embodiment, and a discharge is generated within the same surface. In the case of the counter discharge type PDP, an X electrode is formed on the front substrate and a Y electrode is formed on the rear substrate, and a discharge is generated between the front substrate and the rear substrate.
[0064]
(7) The present invention may be applied to a reflective PDP or a transmissive PDP. In the case of the reflection type PDP, visible light generated by the plasma discharge is transmitted through the surface of the PDP, and lighting is confirmed from the surface (upper surface) of the PDP. In the case of the transmission type PDP, by the plasma discharge The generated visible light is transmitted as it is to the back surface of the PDP, and lighting is confirmed from the back surface (lower surface) of the PDP.
[0065]
【The invention's effect】
  As is apparent from the above description, according to the present invention, the first displacement means is arranged so that each of the opposed scansShort bar for electrodeTwo sets of scans by relatively moving in the opposite direction onlyShort bar for electrodeThe relative distance between them is displaced, and the second displacement meansShort bar for electrode2 sets of data by relatively moving in the opposite direction onlyShort bar for electrodeDisplace the relative distance between and scan each setShort bar for electrodeAnd dataShort bar for electrodeAre configured orthogonal to each other and scanShort bar for electrodeAnd dataShort bar for electrodeSince an insulating member is interposed at each crossing portion, the first and second displacement means perform scanning.Short bar for electrodeAnd dataShort bar for electrodeThe area surrounded by can be arbitrarily changed, and can correspond to various sizes of plasma display panels (PDP), and can be easily attached.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a configuration of an apparatus according to an embodiment.
2A is a cross-sectional view taken along the line AA in FIG. 1, and FIG. 2B is a cross-sectional view taken along the line BB in FIG.
3A is an enlarged cross-sectional view of the scanning electrode gripping member and the floating support in FIG. 2A, and FIG. 3B is an enlarged view of the data electrode gripping member in FIG. It is sectional drawing.
FIG. 4 is a plan view schematically showing electrodes of a plasma display panel (PDP).
5A is a plan view of the tray when the panel size is large, and FIG. 5B is a plan view of the tray when the panel size is small.
FIG. 6 is a flowchart showing a series of flows in the PDP aging process.
7A and 7B are plan views of a tray in each procedure of aging processing. FIG.
FIGS. 8A and 8B are plan views of a tray in each procedure of aging processing.
FIGS. 9A and 9B are plan views of a tray in each procedure of aging processing. FIGS.
FIG. 10 is a plan view of a tray in each procedure of aging processing.
FIG. 11 is a cross-sectional view of a gripping member according to a modification.
FIG. 12 is a plan view of a tray according to a modified example.
FIG. 13 is a plan view of a tray according to a further modification.
FIG. 14 is a plan view of a tray according to a further modification.
FIG. 15 is a schematic perspective view showing the configuration of a PDP according to the knowledge conceived of the present invention.
16A is a cross-sectional view taken along line CC in FIG. 15, and FIG. 16B is a cross-sectional view taken along line DD in FIG.
[Explanation of symbols]
1 ... Plasma display panel (PDP)
2 ... Front substrate
3 ... Back substrate
4 ... Scanning electrode
5… Data electrode
13 ... Short bar for scan electrode
15 ... Short bar for data electrode
17… Fluororesin sheet
18, 19 ... Slide rail

Claims (1)

A plasma display panel is formed by laminating a plurality of substrates, sealing a gas into a gap between the laminated substrates, and applying a voltage to the gap to generate a plasma discharge to turn on the plasma display panel. Plasma that performs a stabilization process of lighting of the plasma display panel by applying a voltage to the scanning electrode that generates discharge and the data electrode that lights a specified region and lighting the entire surface of the plasma display panel for a predetermined period of time. A lighting stabilization device for a display panel,
A short bar for scanning electrodes in which two sets of electrode groups are configured to face each other;
A short bar for data electrodes in which two sets of electrode groups are configured to face each other;
First displacement means for displacing the relative distance between the two short bars for scan electrodes by relatively moving the short bars for each scan electrode facing each other only in the facing direction;
Second displacement means for displacing the relative distance between the two short bars for data electrodes by relatively moving the opposed short bars for data electrodes only in the facing direction;
The short bar for the scan electrode is configured to be electrically connectable to the scan electrode of the plasma display panel, and
The short bar for the data electrode is configured to be electrically connectable to the data electrode of the plasma display panel,
Each set of scanning electrode short bar and data electrode short bar is configured to be orthogonal to each other,
An apparatus for stabilizing stabilization of a plasma display panel, characterized in that an insulating member is interposed at each intersection of a short bar for scan electrodes and a short bar for data electrodes .

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