JP2007076810A - Conveyance method for plasma display panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To convey a plasma display panel without causing warping in the plasma display panel. <P>SOLUTION: In this conveyance method for the plasma display panel 105 having a flat plate shape constituted by arranging a pair of substrates whose at least front sides are transparent opposingly by forming a plurality of discharge cells between the substrates and conveying the plasma display panel by adhering to flat plates (a bottom face 102 and an upper lid 107) arranged in parallel on both faces of the pair of substrates by a plurality of rectangular adhesive materials 104 of extension peeling-off type, the plasma display panel 105 is arranged in the vertical direction and is conveyed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for transporting a plasma display panel constituting a flat display device.

  Conventionally, a plasma display panel performs color display by generating ultraviolet rays by gas discharge and exciting phosphors with the ultraviolet rays to emit light. And the display cell divided by the partition on the board | substrate is provided, and it has the structure by which the fluorescent substance layer is formed in this.

  This plasma display panel is roughly classified into an AC type and a DC type in terms of driving, and there are two types of discharge types, a surface discharge type and a counter discharge type, but high definition, large screen, and simple manufacturing. Therefore, at present, the mainstream of the plasma display panel is a surface discharge type of a three-electrode structure, and the structure has a pair of display electrodes adjacent to each other in parallel on one substrate and the other on the other substrate. It has an address electrode arranged in a direction intersecting with the display electrode, a partition wall, and a phosphor layer. The phosphor layer can be made relatively thick and is suitable for color display using a phosphor.

  Such a plasma display panel can display at a higher speed than a liquid crystal panel, has a wide viewing angle, is easy to increase in size, and is a self-luminous type because of its high display quality. Recently, it has attracted particular attention among flat panel displays, and it is used for various purposes such as display devices in places where many people gather and display devices for enjoying large screen images at home. .

  First, the structure of the plasma display panel will be described with reference to FIG. As shown in FIG. 7, on a transparent front substrate 701 such as a glass substrate, a plurality of stripe-shaped display electrodes 702 that are paired with a scan electrode and a sustain electrode are formed, and covers the electrode group. Thus, a dielectric layer 703 is formed, and a protective film 704 is formed on the dielectric layer 703.

  Also, a plurality of rows of stripes covered with an overcoat layer 706 are formed on the back substrate 705 disposed opposite to the front substrate 701 so as to intersect the display electrodes 702 of the scan electrodes and the sustain electrodes. Address electrodes 707 are formed. On the overcoat layer 706 between the address electrodes 707, a plurality of partition walls 708 are arranged in parallel to the address electrodes 707, and a phosphor layer 709 is provided on the side surface between the partition walls 708 and the surface of the overcoat layer 706. Yes.

  The substrate 701 and the substrate 705 are opposed to each other with a minute discharge space 710 interposed therebetween so that the display electrodes 702 and the address electrodes 707 of the scan electrode and the sustain electrode are almost orthogonal to each other, and the periphery is sealed. In the discharge space 710, one or a mixed gas of helium, neon, argon, and xenon is sealed as a discharge gas.

  In addition, the discharge space 710 is divided into a plurality of sections by partition walls 708, thereby providing a plurality of discharge cells located at the intersections of the display electrodes 702 and the address electrodes 707. Each of the discharge cells has red, green and red The phosphor layers 709 are sequentially arranged for each color so as to be blue.

FIG. 8 shows an electrode arrangement of this plasma display panel. As shown in FIG. 8, the scan electrode, the sustain electrode, and the address electrode have a matrix configuration of M rows × N columns, and M rows of scan electrodes SCN _{1 to} SCN _M and sustain electrodes SUS _{1 to} SUS in the row direction. _M is arranged, and N columns of address electrodes D _{1 to DN} are arranged in the column direction.

  In the plasma display panel having such an electrode configuration, an address pulse is applied between the address electrode and the scan electrode by applying a write pulse between the address electrode and the scan electrode, and after selecting the discharge cell, the scan electrode By applying a periodic sustain pulse that is alternately inverted between the sustain electrode and the sustain electrode, a sustain discharge is performed between the scan electrode and the sustain electrode, and a predetermined display is performed.

  FIG. 9 shows an example of the overall configuration of a plasma display device incorporating the plasma display panel having the structure described above. In FIG. 9, the housing that accommodates the panel 711 includes a front frame 712 and a metal back cover 713, and the opening of the front frame 712 is made of glass that also serves as an optical filter and protects the panel 711. A front cover 714 is disposed. Further, the front cover 714 is subjected to, for example, silver vapor deposition in order to suppress unnecessary radiation of electromagnetic waves. Further, the back cover 713 is provided with a plurality of vent holes 713a for releasing heat generated in the panel 711 and the like to the outside.

  The panel 711 is held by adhering to the front surface of a chassis member 715 made of aluminum or the like via a heat conductive sheet 716, and a plurality of circuit blocks for driving the panel 711 on the rear surface side of the chassis member 715 717 is attached. The heat conductive sheet 716 is for efficiently transferring the heat generated in the panel 711 to the chassis member 715 to dissipate heat.

  The circuit block 717 includes an electric circuit for driving and controlling the display of the panel 711, and extends beyond the four sides of the chassis member 715 to the electrode lead-out portion that is drawn to the edge of the panel 711. They are electrically connected by a plurality of extending flexible wiring boards (not shown).

  On the rear surface of the chassis member 715, a boss portion 715a for attaching the circuit block 717 and fixing the back cover 713 is projected by integral molding by die casting or the like. The chassis member 715 may be configured by fixing a fixing pin to an aluminum flat plate.

  Then, as shown in FIG. 10, in the manufacturing stage of the flat plate-shaped plasma display panel 804, for example, in the process of transporting the plasma display panel 804, the plasma display panel 804 has a flat plate shape and all of the peripheral sides thereof. Alternatively, the flexible wiring board 805 is connected to a part, and the part to which the flexible wiring board 805 is connected cannot be supported by pressure, so the plasma display panels 804 are stored in the tray 801 one by one, The trays 801 were stacked in a laid state.

  In this method, the plasma display panel 804 is laid down on the bottom surface 802 of the tray 801.

  Since the tray 801 is stacked in a laid state, the bottom surface 802 of the upper tray 801 often serves as the upper lid of the lower tray 801. However, it is only an example that the bottom surface 802 of the upper tray 801 also serves as the upper lid of the lower tray 801 is not essential.

  Then, another lid 803 is used for the uppermost tray 801. However, the use of this other lid 803 is merely an example and is not essential.

  Furthermore, there are many examples in which the tray 801 and the bottom surface 802 of the tray 801 have a structure that fits so as not to shift when stacked in a laid state. However, it is only an example and it is not essential that the tray 801 and the bottom surface 802 of the tray 801 have a structure that fits when stacked in a laid state.

In a manufacturing stage of such a plasma display panel 804, for example, an aging process or a transporting process, the plasma display panels 804 are stored in the tray 801 one by one, and the trays 801 are stacked in a laid state. It is shown in Document 1.
JP 11-213891 A

  However, plasma display panels in recent years tend to be very large due to consumer needs, and their diagonal length is as small as 50 inches and as large as 100 inches. For this reason, there is a problem that warping is unavoidable when the plasma display panel is stored in a tray in a stacked state and stored and transported.

  When the warp is caused in this manner, the partition 708 and the phosphor layer 709 formed on the back substrate 705 are destroyed corresponding to the warp direction and the arrangement direction of the plasma display panel. The destruction of the barrier ribs 708 and the phosphor layer 709 naturally causes a failure in the normal operation of the plasma display panel and causes a failure such as a discharge cell being unlit.

  Also, storing and transporting the sheets one by one without being stacked is very inefficient both in terms of man-hours and storage space.

  An object of the present invention is to solve such problems, and to provide a plasma display panel that can be transported without warping.

  The invention described in claim 1 according to the present invention is a method for transporting a flat plate-shaped plasma display panel in which a plurality of discharge cells are formed between the substrates and a pair of substrates transparent at least on the front surface side. A method of transporting a plasma display panel, characterized in that the display panel is transported while being adhered to a flat plate having a size larger than the outer dimensions of the plasma display panel by an adhesive member.

  With such a configuration, a large number of plasma display panels can be stored and transported together while ensuring portability, and the plasma display panels are arranged in a vertical direction so as not to warp. It can be stored and transported.

  The invention according to claim 2 is characterized in that the pressure-sensitive adhesive member is a stretch release material, and with such a configuration, the plasma display panel can be easily peeled off from the transport method, and further after peeling. Since no paste remains, it is very easy to remove the plasma display panel from the transport method, and the man-hours and costs required for storage and transport in the transport method are extremely small.

  The invention according to claim 3 is characterized in that the pressure-sensitive adhesive member is disposed on a flat plate, and with such a configuration, the plasma display panel can be taken out from the transport method very easily, stored, The plasma display panel can be safely and reliably transported with very little man-hours and costs such as transfer to a transport-dedicated tray for transport.

  Further, the invention according to claim 4 is characterized in that the plasma display panel is arranged and transported in a vertical direction, and such a configuration prevents a large number of plasma display panels from being bent and causing warping. While being arranged in the vertical direction, a large number can be stored and transported together, and the number of steps can be reduced while significantly improving the reliability in the process for manufacturing the plasma display panel.

  Further, the invention according to claim 5 is characterized in that the plasma display panel is arranged and transported in an obliquely vertical direction, and with such a configuration, a large number of plasma display panels are collected and no warpage occurs. Thus, it is possible to store and transport a large number of products while arranging them in the vertical direction, further reducing the man-hours while further improving the reliability in the process for manufacturing the plasma display panel. Become.

  Further, in the invention according to claim 6, the plasma display panel has a flexible wiring board connected to a part of its periphery, and the plasma display panel is conveyed with the periphery to which the flexible wiring board is not connected facing down. With such a configuration, it is possible to store and transport a large number of plasma display panels while arranging them in a vertical direction so as not to cause warping. The safety in the process for manufacturing the panel can be further improved.

  Furthermore, the invention according to claim 7 is characterized in that a plurality of the plasma display panels adhered to a flat plate are transported in piles, and with such a configuration, a larger number of plasma display panels are gathered together and warped. Therefore, it is possible to store and transport the film while arranging it in the vertical direction so that the number of steps in the process for manufacturing the plasma display panel can be further reduced.

  According to the present invention, a large number of plasma display panels are arranged in a vertical direction while ensuring portability so that a large number of plasma display panels can be stored and transported in a batch, and without warping. Can be stored and transported.

(First embodiment)
A first embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 is a view showing a method for transporting a plasma display panel according to a first embodiment of the present invention, and is a cross-sectional view showing a state in which trays 101 are arranged in a vertical direction and 12 trays are arranged side by side. is there. Arranging 12 units side by side is merely an example, and any number may be arranged side by side.

  The tray 101 is composed of a bottom surface 102 and an outer frame 103. Each tray 101 stores one plasma display panel 105. A flexible wiring board 106 is connected to all or part of the periphery of the plasma display panel 105.

  The front substrate 105a or the rear substrate 105b of the plasma display panel 105 and the tray 101 are flexible members that are adhesive members whose main component is a resin material such as silicon, acrylic, or urethane having an Asker C hardness of about 10 to 40. The sheet 108 is adhered and fixed so as not to be displaced. The flexible sheet 108 covers the front substrate 105a side and the back substrate 105b side of the plasma display panel 105, that is, covers the entire surface of the plasma display panel 105, thereby exerting a strong adhesive force and also having a holding force for preventing displacement. Can be very large.

  As shown in FIG. 2, instead of the flexible sheet 108, a stretch-peelable adhesive 104 may be used as an adhesive member. A plurality of strip-shaped adhesive materials 104 can be used as the stretch-peelable adhesive material 104. In order to more clearly show how the plasma display panel 105 is held by the plurality of strip-shaped adhesives 104, a plan view of the tray 101 storing the plasma display panel 105 as viewed from above is shown in FIG. 3 shows. 3 and FIG. 2, the same numbers indicate the same items. In FIG. 3, it is possible to see a plurality of strip-shaped adhesive materials 104 that are stretch-peeled, as viewed from above. Is shown as being adhered.

  FIG. 4 shows a front view of the tray 101 storing the same plasma display panel 105 as in FIG. 3 when viewed from the viewing direction of the plasma display panel 105. 4, the same numbers as those in FIGS. 2 and 3 denote the same components. As shown in FIG. 4, it can be seen that the back side substrate 105 b of the plasma display panel and the bottom surface 102 of the tray 101 are bonded by a plurality of strip-shaped adhesives 104.

  As shown in FIGS. 2 to 4, a plurality of strip-like adhesive materials 104 that are stretch-peeled are inserted between the back-side substrate 105 b of the plasma display panel 105 and the bottom surface 102 of the tray 101, thereby generating plasma. The display panel 105 can be held. For example, a plurality of strip-type adhesives 104 that are peelable and peelable are attached to the front substrate 105 a of the plasma display panel 105 and the upper lid 107 (or the previous tray 101). The plasma display panel 105 may be held by being inserted between the bottom surface 102) and the bottom surface 102).

  In addition, a plurality of strip-shaped adhesives 104 that are stretch-peeled are attached between the rear substrate 105b of the plasma display panel 105 and the bottom surface 102 of the tray 101, and between the front substrate 105a and the upper lid 107 (or 1) of the tray 101. The plasma display panel 105 may be held by being inserted into both the bottom surface 102) of the previous tray 101.

  This stretch-peeled strip-shaped adhesive 104 is made of synthetic resin material such as acrylic or silicon, has high elasticity, has a pressure-sensitive adhesive layer, and attaches and detaches objects such as hooks and hangers to the wall. It is used in a wide variety of applications, such as when mounting freely.

  Such a strip-like adhesive material 104 of the exfoliation type is disposed between the back substrate 105b of the plasma display panel 105 and the bottom surface 102 of the tray 101 at a predetermined interval. The trays 101 are stored one by one, and a plurality of them (12 in the example shown in FIG. 1) are stacked and arranged one by one on the bottom surface 102 of the tray 101 one above (left in FIG. 1) (FIG. 1). Then, the plasma display panel 105 can be adhered and held to the bottom surface 102 of the tray 101 in which the plasma display panel 105 is stored by serving also as the upper lid of the tray 101 of the right). This stretch-peelable adhesive 104 can be further improved in adhesion by applying a liquid material, and by curing the liquid stretch-peelable adhesive 104 at room temperature or overheating, Furthermore, the fixing force can be improved.

  An upper lid 107 is attached to the uppermost tray 101 (left end in FIG. 1). However, as described above, the bottom 102 of the tray 101 that is one upper (left in FIG. 1) also serves as the upper lid of the tray 101 that is one lower (right in FIG. 1) is merely an example. It is not necessary and an upper lid 107 may be attached to each tray 101.

  As described above, since the plasma display panel 105 is held in a state of being adhered to the bottom surface 102 of the tray 101 in which the plasma display panel 105 is stored, the plasma display panel 105 is placed in the direction shown in FIG. 1 and stored in this state. The flexible wiring board 106 connected to one peripheral side (downward in FIG. 1) does not collide with the outer frame 103 of the tray 101 and damage the flexible wiring board 106 even if transported. .

  Further, since the plasma display panel 105 is arranged upright as shown in FIG. 1, the scan electrode, the sustain electrode, and the address electrode 707 are disconnected without breaking, and the partition 708 and the phosphor layer 709 are destroyed. And non-lighting caused by them.

  The stretch-peelable adhesive 104 is disposed between the front-side substrate 105a and the back-side substrate 105b of the panel 105 and the bottom surface 102 of the tray 101, is cured by applying a pressing force, and the panel 105 and the tray 101. And glue. And, by pulling the strip-shaped adhesive material 104 of the stretch peeling type from one end direction of the strip, distortion occurs in the width direction of the strip shape, and the adhesive force is greatly reduced by this strain, so it can be easily peeled off Can do. Further, after the peeling, the paste material does not remain, so it is very easy to take out the plasma display panel 105 from the tray 101, and the man-hours and costs required for storage and transportation in the tray 101 are extremely high. Few.

  Stretch-peeled strip-shaped adhesive 104 may be composed of liquid silicon or poster tape, with a pressure-sensitive adhesive layer formed on both sides of an elastic substrate, or pressure-sensitive adhesive layer only It may be composed of

  Further, as shown in FIG. 5, when the flexible wiring board 106 is not connected to a part of the periphery of the plasma display panel 105 (the lower side in FIG. 5), the side is arranged below and the plasma display is arranged. By storing the panel 105 in the tray 101, the side of the plasma display panel 105 to which the flexible wiring substrate 106 is not connected can be supported by the support member 120. In this way, the plasma display panel 105 is sandwiched and bonded between the bottom surface 102 of the tray 101 in which the plasma display panel 105 is stored and the bottom surface 102 of the tray 101 that is one above (left in FIG. 1). By supporting the sides of the plasma display panel 105 to which the flexible wiring substrate 106 is not connected by the support member 120, the plasma display panel 105 can be more securely and firmly placed upright and stored and transported in this state.

  When the flexible wiring board 106 is not connected to only a part of the periphery of the plasma display panel 105 (the lower side in FIG. 5), the side is arranged below and the flexible wiring board is provided. Only the portion to which 106 is not connected may be supported by the support member 120.

(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.

  FIG. 6 is a diagram showing a method for transporting a plasma display panel according to the second embodiment of the present invention, and is a cross-sectional view showing a state in which nine trays 301 are arranged in an obliquely vertical direction and nine of them are arranged side by side. It is. Arranging the nine units side by side is merely an example, and any number may be arranged side by side.

  The tray 301 includes a bottom surface 302 and an outer frame 303, and each tray 301 stores one plasma display panel 305. A flexible wiring board 306 is connected to all or part of the periphery of the plasma display panel 305.

  A plurality of strip-shaped adhesive materials 304 of a stretch-peeling type are bonded to the front side substrate 305a and the back side substrate 305b of the plasma display panel 305.

  Such strip-like adhesive material 304 of the exfoliation type is disposed on the front substrate 305a and the back substrate 305b of the plasma display panel 305 at a predetermined interval, and the plasma display panels 305 are stored in the tray 301 one by one. By attaching the upper lid 307, the plasma display panel 305 can be held in a state where it is adhered to the bottom surface 302 of the tray 301. A plurality of them (9 in the example shown in FIG. 6) are arranged in an obliquely vertical direction.

  As described above, according to the second embodiment, the plasma display panel 305 is bonded to the bottom surface 302 of the tray 301 in which the plasma display panel 305 is stored by the plurality of strip-shaped adhesive materials 304 that are stretch-released. Therefore, as shown in FIG. 6, the flexible wiring board 306 is arranged in a slanting vertical direction and slips down even if stored and transported in this state, and is connected to one periphery (downward in FIG. 6). The flexible wiring board 306 is not damaged by colliding with the outer frame 303 of the tray 301.

  Further, since the tray 301 is disposed in the vertical direction with an inclination, the gravity in the vertical direction with respect to the plasma display panel 305 is caused to cause a force to slide in parallel with the bottom surface 302 and a reaction in a direction perpendicular to the bottom surface 302. The possibility of causing the plasma display panel 305 to slip or warp during transportation can be further reduced.

  Note that the plurality of strip-shaped adhesive 104 and the plurality of strip-shaped adhesive 304 may be not necessarily strip-shaped or plural.

  Further, by stacking and fixing a plurality of trays 101 and 301, as described above, the upper lid of the tray 101 (or the tray 301) with the bottom surface 102 (or the bottom surface 302) of the tray 101 (or the tray 301) being one lower is attached. In addition, many trays 101 (or trays 301) can be easily, safely and reliably transported with a small number of man-hours.

  Furthermore, by storing the plasma display panel 105 (and the plasma display panel 305) in the tray 101 (and the tray 301) one by one, the plasma display panel 105 can be easily, safely and reliably transported. The transition from the panel production automatic machine to the module assembly automatic machine can be performed very easily and smoothly.

  According to the present invention, a large number of plasma display panels are arranged in a vertical direction while ensuring portability so that a large number of plasma display panels can be stored and transported in a batch, and without warping. It can be stored and transported, and its industrial applicability is extremely high.

Sectional drawing which shows the conveyance method of the plasma display panel which concerns on one embodiment of this invention Sectional drawing which similarly shows the conveyance method of the plasma display panel which concerns on one embodiment of this invention The top view which shows the state which looked at the plasma display panel from the top in the conveyance method of the plasma display panel which concerns on one embodiment of this invention Similarly, a front view of the plasma display panel as seen from the front Sectional drawing which shows the conveyance method of the plasma display panel which concerns on other embodiment of this invention. Sectional drawing which shows the conveyance method of the plasma display panel which concerns on other embodiment of this invention. Schematic showing the structure of a conventional plasma display panel Schematic showing the electrode arrangement of a conventional plasma display panel Schematic which shows an example of the whole structure of the conventional plasma display apparatus. Sectional drawing which shows the conveyance method of the conventional plasma display panel

Explanation of symbols

101, 301, 801 Tray 102, 302, 802 Bottom surface 103, 303 Outer frame 104, 304 Adhesive material 105, 305, 804 Plasma display panel 106, 306, 805 Flexible wiring board 107, 307, 803 Top cover 701, 705 Substrate 702 Display Electrode 703 Dielectric layer 704 Protective film 706 Overcoat layer 707 Address electrode 708 Bulkhead 709 Phosphor layer 710 Discharge space 711 Panel 712 Front frame 713 Back cover 713a Vent hole 714 Front cover 715 Chassis member 715a Boss part 716 Thermal conduction sheet 717 Circuit block

Claims (7)

A method of transporting a flat plate-shaped plasma display panel in which a plurality of discharge cells are formed between the substrates and a pair of substrates at least transparent on the front side are arranged to face each other.
A method of transporting a plasma display panel, comprising transporting the plasma display panel by adhering the plasma display panel to a flat plate having a size equal to or larger than the outer dimensions of the plasma display panel with an adhesive member. The method for transporting a plasma display panel according to claim 1, wherein the adhesive member is a stretch release material. The method for transporting a plasma display panel according to claim 1, wherein the adhesive member is disposed on a flat plate. The method for transporting a plasma display panel according to claim 1, wherein the plasma display panel is transported in a vertical direction. The method for transporting a plasma display panel according to claim 1, wherein the plasma display panel is transported while being arranged obliquely in a vertical direction. The plasma display panel has a flexible wiring board connected to a part of its periphery,
2. The method of transporting a plasma display panel according to claim 1, wherein the plasma display panel is transported with a periphery to which a flexible wiring board is not connected facing down. The method for transporting a plasma display panel according to claim 1, wherein a plurality of the plasma display panels adhered to a flat plate are transported in a stacked manner.

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