KR100267572B1 - Dry film separation apparatus for plasma display panel manufacturing system - Google Patents

Abstract

The present invention is applied to the partition manufacturing equipment during the manufacturing process of the PDP to remove the dry film without damaging the partition material, and to produce a plasma display panel that can improve the performance of the PDP by removing the residue and dirt after the peeling process of the dry film A dry film separation apparatus for PDP-manufacturing system,

A stripping tank performing a dipping method of immersing the panel in the stripping solution and then performing a shower method of spraying the stripping solution toward the panel through a nozzle to peel the dry film on the partition material; Pure water rinsing to perform the operation of removing the peeling liquid by spraying pure water to the panel passed through the stripping tank, and pure water rinse to completely remove the peeling liquid component remaining on the panel passed through the pure shower bath The bath and a drying tank for removing the pure water remaining in the panel passing through the pure rinsing tank to dry the panel are sequentially arranged.

Description

Dry film peeling apparatus of plasma display panel manufacturing system

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dry film peeling apparatus of a plasma display panel (hereinafter referred to as PDP) manufacturing system. In particular, the present invention is applied to partition fabrication equipment during a manufacturing process of a PDP to remove dry film without damaging the partition material. A dry film peeling apparatus of a display panel manufacturing system.

Recently, as the demand for multimedia displays increases, the development of technology for home AC PDPs having strengths in large screens and viewing angles has been rapidly made. PDPs constitute an information display unit of a display device. Is a gas discharge display device using a light emitting phenomenon in which vacuum ultraviolet rays generated during inert gas discharge such as neon (Ne), helium (He), and xenon (Xe) excite phosphors.

A configuration of a general AC PDP will be described with reference to FIGS. 1 to 3.

First, the PDP consists of a front panel 10, which is a display surface of an image, and a rear panel 20 positioned in parallel with the front panel 10 at a predetermined distance therebetween.

In this case, the front panel 10 includes a plurality of display electrodes 12 arranged in a stripe shape on a surface glass substrate 11 and a surface opposite to the rear panel 20 of the surface glass substrate 11; A first dielectric layer 13 stacked to cover the display electrode 12 to limit discharge current during discharge and to facilitate generation of wall charges, and a dielectric for protecting the first dielectric layer 13. The protective layer 14 is formed. The display electrode 12 includes a transparent electrode 12a using indium tin oxide (ITO) and a metal electrode 12b stacked in Cr / Cu / Cr to be used as a bus line. In addition, the dielectric protective layer 14 is formed of magnesium oxide (MgO).

Meanwhile, the rear panel 20 is arranged in a stripe shape on the rear glass substrate 21 and on the rear glass substrate 21 so as to be orthogonal to the display electrode 12. A plurality of address electrodes 22 for dividing the screen into a plurality of cells in a matrix form, a second dielectric layer 23 applied to the entire surface to protect the address electrodes 22 and to perform electrical insulation; The barrier ribs 24 arranged on the second dielectric layer 23 in a stripe form to form a discharge space, and are printed and applied to the inside of the discharge space formed by the barrier ribs 24, and are excited by ultraviolet rays during discharge of each cell. It consists of a fluorescent layer 25 that emits visible light. At this time, the fluorescent layer 25 is divided into red (R), green (G), blue (B) is applied alternately.

The PDP device is completed by fusion and exhaust of the front panel 10 and the rear panel 20 made as described above using a sealing glass and then injecting and sealing an inert gas at a predetermined pressure in each discharge space. do.

In the PDP device formed by the above process, when a voltage is applied to the display electrode 12, plasma discharge occurs on the surfaces of the first dielectric layer 13 and the dielectric protective layer 14 to generate ultraviolet rays. Silver generates visible light by exciting the fluorescent layer 25. This enables color display.

4 is a view showing a partition wall manufacturing process generally used.

First, the barrier material 120 and the dry film 130 are sequentially stacked and dried on the glass substrate 110 (see FIG. 4A). In this case, the barrier material 120 is 100 Is an inorganic material mainly composed of SiO ₂ coated to a thickness of 200 μm, and the dry film 130 is an organic material mainly composed of a plastic film coated with a thickness of 15 to 100 μm, and a photosensitive agent reacting to light is mixed. have.

Thereafter, a mask 140 having an opening formed in a desired partition pattern is disposed on the dry film 130 to expose the dry film 130 to ultraviolet rays (UV) to perform an exposure process. At this time, the dry film 130 is a chemical composition of the portion exposed to the ultraviolet rays.

Thereafter, the developer is supplied through the first nozzle 150 to perform a developing process of removing a portion of the dry film 130 that is not exposed to ultraviolet rays. (See FIG. 4C). ₂ CO ₃ is mixed with pure water.

Thereafter, the abrasive is sprayed through the second nozzle 160 (see FIG. 4D), and the partition material 120 exposed in the developing process is removed to form the partition pattern 120a. At this time, the dry film pattern 130a remaining in the developing process serves as a protective film to prevent the underlying partition material from being chipped.

After that, the unnecessary dry film pattern 130a is removed to leave only the partition wall pattern 120a (see FIG. 4 (F)), followed by sintering to harden the partition wall 170 attached to the panel. See FIG. 4G)

However, in order to improve the performance of the color display, the residue should not be left in the step of peeling the dry film during the manufacturing process of the partition, and the damage of the partition should be prevented.

In the conventional dry film peeling apparatus used to remove the dry film pattern 130a in the above, when the panel 210 is fixedly loaded into the transport jig 220 as shown in FIG. A rinse tank 310 for performing a film peeling operation, a rinse tank 320 for diluting a peeling solution remaining in the panel 210 passing through the peeling tank 310, and the rinse bath The drying tank 330 sequentially performs the operation of drying the panel 210 by using clean air after completely removing the peeling liquid by submerging the panel 210 passed through the 320 again in pure water. do.

At this time, the peeling tank 310 is provided with a peeling tank 230 filled with a peeling liquid for the peeling operation of the dry film, the dry film swells when left for a predetermined time while moving the panel 210 deposited in the peeling liquid up and down. And peeling off. In addition, the rinse tank 320 is provided with a first rinse tank 240 filled with pure water, and the peeling liquid remaining in the panel 210 is left when the panel 210 deposited in pure water is left for a predetermined time while moving up and down. Diluted. In addition, the drying tank 330 is provided with a second rinse tank (250) filled with pure water and an air knife (260) for blowing the clean air to dry the panel 210, the second rinse tank After completely removing the peeling solution from the 250 and blows out, it is dried by blowing clean air through the air knife 260 installed on the second rinse tank 250 to the surface of the panel 210.

However, the dry film peeling apparatus of the prior art as described above is carried out after the sandblast process of forming the partition pattern during the partition formation process, so that the unheated partition wall collapses during the dry film peeling process. The problem that arises arises.

In addition, in order to minimize the collapse of the barrier ribs, a dipping method is used in which the nozzle is deposited in the peeling liquid rather than a shower method in which the nozzle is sprayed with the peeling liquid. Then, a residue of the dry film remains and a part of the partition material is peeled off and adheres to the surface of the panel, causing a problem of appearing as a stain when the PDP is driven.

The present invention has been made to solve the above problems, the object of the present invention is to manufacture a plasma display panel to improve the performance of the PDP by adding a pure shower process so that no residue and dirt after the peeling process of the dry film remains It is to provide a dry film peeling apparatus of the system.

1 is a perspective view showing the configuration of a general PDP;

2 is a cross-sectional view showing the configuration of the front panel in FIG.

3 is a cross-sectional view showing the configuration of a rear panel in FIG. 1;

4 is a cross-sectional view illustrating a barrier rib forming process in a typical PDP manufacturing operation;

5 is a view showing a dry film peeling apparatus according to the prior art,

6 is a view showing a dry film peeling apparatus according to the present invention;

7 to 11 are views sequentially showing the peeling operation of the present invention,

<Description of Symbols for Main Parts of Drawings>

410: panel 420: conveying roller

430: shutter 440: peeling nozzle

450: support rod 460: shower nozzle

470: rinse nozzle 480: air knife

510: atmospheric tank 520: separation tank

530: pure shower bath 540: pure rinse bath

550: drying tank

According to a feature of the present invention for achieving the above object, the partition wall by performing a dipping (dipping) method for depositing the panel in the peeling liquid and performing a shower (shower) method for spraying the peeling liquid toward the panel through the nozzle A stripping tank for performing an operation of peeling off the dry film on the material, a pure shower tank for spraying pure water on the panel passing through the stripping tank to remove the stripping liquid, and a panel passing through the pure shower bath. Pure water rinsing tank which performs the operation of completely removing the remaining peeling liquid component, and drying tank which performs the operation of drying the panel by removing the pure water remaining in the panel which passed the said pure rinsing tank are sequentially arranged. Provided is a dry film peeling apparatus of a manufacturing system.

At this time, according to an additional feature of the present invention, in order to prevent the stripping liquid used in the stripping tank to pass to the outside may be configured in the atmosphere tank in front of the stripping tank.

In addition, the peeling tank may be configured to be equipped with a shutter (shutter) at the entrance and exit to block the removal of the peeling liquid to the outside or pure shower bath during operation.

In addition, the peeling tank is located in the upper part of the panel after the dipping method is performed, the nozzle for injecting the peeling liquid to the panel, and located at the bottom of the panel while pushing the one side of the panel while the peeling liquid is sprayed from the nozzle inclined Support rods can be installed.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

6 is a view showing the configuration of a dry film peeling apparatus according to the present invention.

Referring to FIG. 6, the atmospheric bath 510, the separation bath 520, the pure shower bath 530, the pure rinse bath 540, and the drying bath 550 are sequentially disposed.

All the operation tanks are provided with a conveying roller 420 for the transfer of the panel 410, the atmospheric tank 510 has a function to prevent the peeling liquid used in the separation tank 520 to pass to the outside. Perform.

The peeling tank 520 is a shutter (430) mounted to the inlet and outlet to block the removal of the peeling liquid to the outside or the pure shower bath during operation, and the peeling liquid is placed on the panel (410) Peeling nozzle 440 to be sprayed to the 410, and the support bar 450 is located in the lower portion of the panel 410 to push up one side of the panel 410 while the peeling liquid is injected from the peeling nozzle 440 to be inclined Is provided.

In addition, the pure water shower tank 530 is provided with a shower nozzle 460 for spraying pure water to the panel 410, the pure water rinse tank 540 is a rinse nozzle 470 for spraying pure water to the panel 410. Is provided, the drying tank 550 is provided with an air knife 480 for blowing clean air to the panel 410.

The operation of the dry film peeling apparatus having the above configuration will be described in detail with reference to the drawings of FIGS. 7 to 11.

First, when the panel 410 is loaded on the conveying roller 420 and enters the stripping tank 520 through the atmospheric tank 510, the shutter 430 is closed to block the entrance and exit. Thereafter, as shown in FIG. 7, the stripping solution is supplied into the stripping tank 520 until the panel 410 is locked so as to peel off the dry film for a predetermined time.

After that, when the panel 410 is exposed by draining the stripping solution (see FIG. 8), the supporting rod 450 is raised to be inclined by pushing up one side of the panel 410 as shown in FIG. 9. When the peeling liquid is sprayed through the peeling nozzle 440 in the state, the peeling liquid flows down the inclined panel 410, and the residue of the dry film remaining on the surface of the panel 410 and the partially peeled partition material It flows with the fields.

At this time, the partition wall is very weak because it is not fired state, for that reason, the pressure of the peeling liquid sprayed from the peeling nozzle 440 is 1.0kgf / ㎠ or less to spray within 3 minutes, the pressure is 1.2kgf / If it is 2 cm <2> or more, it is preferable to spray in 5 to 10 second.

When the residue is removed, the supporting rod 450 is lowered (see FIG. 10), and the shutter 430 is opened to transfer the panel 410 to the next operation tank, that is, the pure shower tank 530.

When the peeling is performed by the above operation, the panel 410 is transferred to the pure shower tank 530 to remove the stripping liquid by the pure water sprayed from the shower nozzle 460, and the pure water rinse tank 540 The peeling liquid component is completely removed by the pure water sprayed from the rinse nozzle 470 again.

Thereafter, the drying tank 550 blows clean air through the air knife 480 to remove pure water remaining in the panel 410 passing through the pure rinse tank 540 to dry the panel 410.

As described above, the dry film peeling apparatus of the plasma display panel manufacturing system of the present invention can prevent the residue or dirt from remaining on the surface of the panel after peeling off the dry film, thereby reducing the printing defect of the phosphor due to the residue or dirt. There is.

In addition, due to the removal of the residue and dirt, it is possible to eliminate the unevenness of the screen appearing when driving the PDP has the effect of improving the color display performance.

In addition, since the peeling process is performed by mixing the dipping method and the shower method, the peeling process time can be shortened and the peeling performance can be improved.

Claims (4)

A stripping tank performing a dipping method of immersing the panel in the stripping solution and then performing a shower method of spraying the stripping solution toward the panel through a nozzle to peel the dry film on the partition material; Pure water rinsing to perform the operation of removing the peeling liquid by spraying pure water to the panel passed through the stripping tank, and pure water rinse to completely remove the peeling liquid component remaining on the panel passed through the pure shower bath And a drying tank configured to sequentially remove the pure water remaining in the panel passing through the pure water rinsing tank to dry the panel, and the dry film peeling apparatus of the plasma display panel manufacturing system. The method of claim 1, Dry film peeling apparatus of the plasma display panel manufacturing system, characterized in that the atmospheric tank is disposed in front of the peeling tank in order to prevent the peeling liquid used in the peeling tank to pass to the outside. The method of claim 1, The peeling tank dry film peeling apparatus of the plasma display panel manufacturing system, characterized in that the shutter (shutter) is mounted to the entrance and exit in order to block the removal of the removal liquid to the outside or the pure shower bath during operation. The method of claim 1, The peeling tank is located in the upper part of the panel after the dipping method is performed, the nozzle for injecting the peeling liquid to the panel, and located in the lower part of the panel to push up one side of the panel while injecting the peeling liquid from the nozzle to be inclined Dry film peeling apparatus of the plasma display panel manufacturing system, characterized in that the support rod is installed.