JPH09245628A - Manufacture of plasma display panel and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a plasma display panel with high accuracy and at low cost by forming a material layer by application of a raw photo-curing material to the surface of a flexible sheet, forming a component element such as a barrier by selective exposure of the material layer while holding the layer in close contact with a glass substrate, and removing the uncured material thereafter. SOLUTION: A material, obtained by blending a component-element forming material into a photo-curing resin, is applied to the top of a transparent seatbelt 11 for formation of a material layer P, and the curved position of the transparent seatbelt 11 is moved so that the material layer P is put into close contact with a glass substrate G which a worktable 25 positions and holds on its lower surface, after which the material layer P is exposed via a mask 31 to form a component element. Thereafter, the curved position is moved in the opposite direction so that the transparent seatbelt 11, together with the uncured material layer P, is peeled form the component element supported on the glass substrate G.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a plasma display panel and an apparatus for manufacturing the same, and more specifically, to manufacture components such as barriers and phosphors on a glass substrate with high accuracy and at low cost. About what is possible.

[0002]

2. Description of the Related Art In recent years, displays have been made thinner, and large ones are being put to practical use by plasma displays. In this plasma display, cells divided into three primary colors are arranged side by side between a front glass substrate and a back glass substrate, electrodes and phosphors are printed inside each cell, and a rare gas is filled in to fluoresce. It is designed to emit light by the same discharge phenomenon as a lamp.

In this plasma display panel, cells of three primary colors are produced in a size of, for example, about 1.0 mm × 0.3 mm, each cell is divided by a barrier, and fluorescence of the three primary colors is contained therein. It forms the body etc. A screen printing method, a sand blast method, and the like have been studied as a method of manufacturing the constituent elements of the plasma display panel such as the barrier and the phosphor.

[0004]

However, in the plasma display panel, the cells must be arranged side by side on a large-area glass substrate with high precision, and the precision of forming the components such as barriers and phosphors is considerably high. Is required, and it is necessary to form the barrier to a height of about 100 μm to 200 μm. For this reason, it has been difficult to manufacture the constituent elements with the required accuracy by the screen printing method or the like.

Specifically, in the screen printing method, a paste-like material is extruded through a mesh of the screen to print a thick film, but the screen is deformed at the time of printing, so that a large area can be accurately formed. Difficult to print. Further, when forming a fine pattern, the thickness that can be formed by one printing becomes thin, so that the number of times of printing increases and the pattern shift occurs, or the accuracy decreases due to error integration. There is also a problem that pinholes due to bubbles are likely to occur.

Further, in the sandblast method, a thick film corresponding to the height of the barrier is formed, a resist is formed on the surface by a photo process, and then an abrasive is sprayed to remove the portion other than the resist. There are problems that it is difficult and time-consuming to fabricate a thin barrier. As another method of forming the barrier, after forming a thick film of a photosensitive material (sheet) or the like, a portion corresponding to the barrier is removed by a photo process to form a space, and the material is placed in the space. Embedding A method of forming a barrier by removing the photosensitive material again (embedding method),
A method of forming a barrier by curing the photosensitive material itself in a portion corresponding to the barrier by a photo process and removing the photosensitive material other than the portion is also under study. However, when the thick film is formed of a sheet of a photosensitive material, the sheet is expensive, and a step of removing an unnecessary portion is required separately from the photo process step, which is troublesome.

Therefore, according to the present invention, a raw material layer formed by applying a raw photocurable material to the surface of a flexible sheet is selectively exposed in a state where the material layer is brought into close contact with a glass substrate to form components. It is an object of the present invention to realize a highly accurate and inexpensive production of a plasma display panel by removing the uncured material so that a component having an arbitrary thickness can be accurately formed by one operation.

[0008]

In order to achieve the above-mentioned object, the invention according to claim 1 is a method for producing a constituent element of a plasma display panel on a glass substrate, wherein the constituent element is a photocurable resin. A first step of forming a material layer by applying a paste-like uncured material in which materials are mixed as needed to a flexible transparent sheet belt surface, and a transparent sheet on one side of a glass substrate for positioning and holding. A second step of adhering the material layer on the surface of the belt, and a third step of exposing and curing the material layer between the glass substrate and the transparent sheet belt through the mask pattern of the constituent element to form the constituent element, A fourth step of peeling the uncured material layer together with the transparent sheet belt from the component that is cured and supported by the glass substrate.

According to a fifth aspect of the present invention, there is provided an apparatus for producing a constituent element of a plasma display panel on a glass substrate, which comprises substrate holding means for positioning and holding the glass substrate, and the constituent element of the photocurable resin. Material layer forming means for forming a material layer by applying a paste-like uncured material in which constituent materials are mixed as necessary to a flexible transparent sheet belt surface, and a material for the surface by moving the transparent sheet belt. Material layer conveying means for conveying the layer to a position facing the one surface side of the positioned glass substrate, and adhesion means for adhering the transparent sheet belt to the positioned glass substrate to bring the material layer on the surface into close contact The material layer between the glass substrate and the transparent sheet belt is positioned between the mask holding means for positioning and holding the mask pattern of the component so as to correspond to the glass substrate. An exposing unit that exposes and cures through a predetermined mask pattern to form the constituent element; and a peeling unit that cures and separates the uncured material layer together with the transparent sheet belt from the constituent member supported by the glass substrate. , Is provided.

According to the first and fifth aspects of the invention, the material layer of the photocurable material applied and formed on the surface of the transparent sheet belt is brought into close contact with the glass substrate after being conveyed to a position facing the glass substrate or simultaneously with the conveyance. Then, a component supported by the glass substrate is formed by being selectively exposed through a mask pattern corresponding to the component to form a component supported by the glass substrate, and thereafter, the uncured material layer is peeled from the component together with the transparent sheet belt. It At this time, since the material layer is simply applied on the flexible transparent sheet belt, the layer thickness can be accurately formed by a single application, and the transparent sheet belt is bent (curved) or the like to be applied to the glass substrate. It can be easily attached. In addition, the layer thickness of the material layer can be made precise by squeezing it at the time of contact with the glass substrate. The constituent elements can be easily (accurately) formed (cured) simply by selectively exposing the material layer, and the uncured material layer can be easily peeled off together with the transparent seat belt to be bent.

According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, in the second step, the transparent sheet belt is curved in a direction separating from one end side of the glass substrate, and one surface of the glass substrate is curved. By moving the curved position of the transparent sheet belt from one end side to the other end side of the glass substrate from the state in which the transparent side is opened, the transparent sheet belt is sequentially brought close to the glass substrate and the uncured material layer is formed on the glass substrate. In the fourth step, the transparent sheet belt is curved in a direction in which it is separated from the other end of the glass substrate, and the transparent sheet belt is bent from the state of being close to the one surface side of the glass substrate. Is moved from the other end side to the one end side of the glass substrate, so that the transparent sheet belt is sequentially separated from the glass substrate and separated from the components supported by the glass substrate together with the uncured material layer. It is characterized in Rukoto.

According to the second aspect of the present invention, the transparent seat belt, which is curved on one end side in the separating direction so as to open one surface side of the glass substrate, is moved to the other end side at the curved position, that is, the transparent sheet belt. The seat belt is gradually brought closer to the glass substrate from one end side without changing the relative position in the parallel direction to the glass substrate, so that the material layer is brought into close contact with the one surface side of the glass substrate. At this time, since the material layer adheres to the glass substrate while changing the curved position from one end side to the other end side, air is not trapped between them. On the other hand, after the material layer is selectively exposed and the component is supported on the glass substrate, the transparent sheet belt is gradually separated from the glass substrate by moving the curved position, and the uncured material layer is also separated from the component. It is peeled off. At this time, since the transparent sheet belt is gradually separated during peeling, the uncured portion of the material layer is easily peeled off.

According to a sixth aspect of the invention, in addition to the configuration of the fifth aspect of the invention, the material layer conveying means is in contact with the back surface of the surface of the transparent seat belt on which the material layer is formed, and the one surface side of the glass substrate. A curved surface that reciprocates between one end side and the other end side of the glass substrate at a position close to the first end, and a first surface supporting the one end side of the transparent seat belt provided at a position where the glass substrate is extended outward on the one end side. A support part and a second support part provided at a position separated from one surface side of the glass substrate and supporting the other end side of the transparent seat belt supported by the first support part via a curved surface, It is characterized in that the material layer conveying means also serves as an adhesion means and a peeling means.

According to the invention of claim 6, the transparent seat belt is supported on the outer side of one end of the glass substrate, and from the one surface side of the glass substrate with the curved surface in contact with the back surface of the material layer forming surface. It is supported at positions separated from each other, and the curved surface between them reciprocates between one end side and the other end side of the glass substrate. Therefore, similarly to the invention described in claim 2, the transparent sheet belt is moved to a position where it is curved by the curved surface, and the material layer on the surface is gradually approached / separated from the glass substrate to be closely attached to one surface side of the glass substrate. Meanwhile, the uncured material layer is stripped from the cured component.

According to a third aspect of the present invention, in addition to the structure of the first aspect of the invention, in the second step, the glass substrate is slid in a state of being floated by the fluid blown out from the transfer path, is carried in, and is then vacuum-adsorbed. The glass substrate is characterized in that it is positioned and held, and after the fourth step, the glass substrate is slid out in a state of being floated by the fluid blown out from the transport path with the one surface side on which the constituent elements are formed being the upper surface side and carried out.

In addition to the configuration of the invention according to claim 5, the invention according to claim 7 is such that, in addition to the configuration of the invention according to claim 5, a transport path for sliding and transporting the glass substrate in a state of being floated by a fluid blowing out, and the transport path is carried in on the transport path. A positioning means for positioning the glass substrate, and the substrate holding means is configured to position and hold the glass substrate positioned by the positioning means by vacuum suction to bring the material layer into close contact. It is what

In the inventions according to claims 3 and 7, the glass substrate is floated by the fluid to be blown out, and is carried in and out of the carrying path by, for example, an air slide, and when the material layers are brought into close contact with each other, they are vacuum-adsorbed and positioned and held. . Therefore, even a large-area glass substrate can be easily transported and can be positioned and held so as not to shift.

According to a fourth aspect of the present invention, in addition to the configuration of the third aspect of the invention, in the second step, the glass substrate is positioned on the transport path and then the upper surface is vacuum-sucked to form the material layer on the transport path. Characterized in that the glass substrate is transferred to a position where it is brought into close contact with one surface side as a lower surface and is positioned and held, and after the fourth step, the glass substrate is turned over to the upper surface side by reversing the one surface side on which the constituent elements are formed. There is.

Further, in the invention described in claim 8, in addition to the configuration of the invention described in claim 7, the positioning means is configured to position the material layer on the transport path in the vicinity of a position where the material layer is in close contact with the substrate holding means. The upper surface of the glass substrate positioned by the positioning means is vacuum-sucked and transferred to the contact position of the material layer, the lower surface is positioned and held with the lower surface as one surface side, and the glass substrate formed on one surface side is inverted. It is characterized in that the one surface side is an upper surface and is configured to be sent out on a conveying path.

In the inventions of claims 4 and 8, the glass substrate is positioned on the transport path, then vacuum-adsorbed, transferred with the lower surface as one surface side, and positioned and held at a position where the material layer is brought into close contact, thereby forming the constituent elements. After that, the sheet is turned upside down and one surface side is made the upper surface and is sent out to the conveying path. Therefore, the glass substrate can be accurately positioned even at the position where the glass substrate is positioned relative to the device on the transport path and the material layer is in close contact with the device. At the position where the glass substrate is brought into close contact with the material layer, the glass substrate is vacuum-adsorbed and positioned with one surface as the lower surface. Therefore, it is not necessary to consider the fall of the material layer from the transparent seat belt. At the time of carrying out after that, since the glass substrate is inverted, it can be carried out by sliding while being floated by the fluid.

According to a ninth aspect of the present invention, in addition to the structure of the fifth aspect, the exposing means extends in a direction orthogonal to the direction from one end to the other end of the glass substrate and is parallel to the glass substrate. And a transfer means for transferring the light source from one end of the glass substrate to the other end or the opposite direction. In the invention according to claim 9, the material layer is transferred between one end side and the other end side of the glass substrate and is exposed by a light source extending in a direction orthogonal to the transfer direction. Therefore, the material layer is exposed with a uniform amount of light.

According to a tenth aspect of the present invention, in addition to the structure of the ninth aspect, a transparent sheet belt is located on the lower surface side of the glass substrate, and the exposing means is a material through the transparent sheet belt and a mask pattern. It is characterized in that it is configured to expose a layer, and the transfer means is provided with a distance correcting means which moves in parallel with the glass substrate and corrects the distance of the mask pattern to the glass substrate to a constant value. .

According to the tenth aspect of the present invention, when the material layer adhered to one side of the glass substrate is exposed through the transparent sheet belt, the distance of the mask pattern to the glass substrate is constant along with the movement of the light source. Be corrected to. Therefore, the bending of the mask pattern caused by facing the glass substrate from the lower surface side is corrected at least at each exposed portion, and the material layer is hardened with high accuracy to form the component.

Here, the above-mentioned constituent elements refer to a barrier of a plasma display panel, a phosphor, an insulating film, or the like. Further, the glass substrate and the transparent seat belt may have any positional relationship and posture unless otherwise specified. For example, when the upper surface of the glass substrate is one side, the material layer is formed on the lower surface of the transparent seat belt. May be positioned and brought into close contact, and exposure may be performed from either side of the transparent sheet belt or the glass substrate. Further, the glass substrate and the transparent seat belt may be vertically positioned. In consideration of the formation and peeling of the material layer, it is preferable that the lower surface of the glass substrate is one surface side as in the invention described in claims 4, 8 and 10.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 10 are views showing an embodiment of a manufacturing apparatus for carrying out a method for manufacturing a plasma display panel according to the present invention. First, the structure of the manufacturing apparatus will be described with reference to FIGS.

In both figures, reference numeral 11 denotes a transparent seat belt, and the transparent seat belt 11 is made of, for example, transparent polyester having a thickness of 20 to 50 μm which is flexible and transmits light, and has a mechanical force. It is stretched in advance so that it will not stretch even when added, and its surface is surface-treated so that the resin material described below adheres with a predetermined adhesive force and is easily separated from the cured product of the cured resin material. . The transparent seat belt 11 can be used by pulling out an unused one from a bobbin (not shown) and winding it up on the bobbin for reuse after use. Alternatively, the bobbin may be circulated and used without being wound up.

Reference numeral 12 denotes a pair of supply rollers, and the pair of supply rollers 12
One of them drives / stops one of them and the other rotates following them, so as to feed out the transparent seat belts 11 which are pressed against each other and sandwiched at a constant speed, and hold the transparent seat belts 11 so that the position of the transparent seat belts 11 does not shift when stopped. Reference numerals 13 to 16 denote moving rollers, and the moving rollers 13 to 16 are arranged in a horizontal direction while maintaining different heights in the vertical direction in a state where the transparent seat belt 11 supplied from the supply roller pair 12 is wound around the peripheral surface. The uppermost portion (curved surface) of the peripheral surface of the moving roller 13 is close to the height of the nip portion of the supply roller pair 12 and one surface side of the glass substrate G at the exposure position B described later. It is provided to move the height. Therefore, the moving roller 13 moves in the horizontal direction when the supply roller pair 12 is stopped to bend the position of the transparent seat belt 11 (curved position) between the right side and the left side in the figure. It can be moved, and the material layer P on the surface thereof can be moved and gradually made horizontal or vertical to be brought close to or separated from the glass substrate G located at the exposure position B. That is, the supply roller pair 12 functions as the first supporting portion and the moving roller 13
Has a curved surface, and the moving rollers 14 to 16 constitute a second supporting portion. These roller groups 12 to 16 constitute not only material layer conveying means but also contact means and peeling means. ing. At this time, the winding torque of the bobbin on the winding side may be changed so that the tension of the transparent seat belt 11 becomes constant regardless of the supply / stop.

Reference numeral 17 is a comma-type bottom coater, and the bottom coater 17 automatically supplies a paste-like resin material having a constant viscosity to make the storage amount constant, and the storage resin material is transparent sheet belt through the bottom slit. Along with the movement of 11, the material layer P is formed by being extruded or drawn out on the surface (upper surface) thereof and arbitrarily (for example, 100 μm to 200 μm when forming a barrier) and applied with a constant layer thickness. That is,
The bottom coater 17 constitutes a material layer forming means.

The resin material forming the material layer P is a known photocurable resin liquid, for example, an uncured resin liquid which is cured by visible light (or light in the ultraviolet region or infrared region). The constituent materials of the constituent elements of the plasma display panel to be formed (barriers, phosphors, etc.) are mixed as necessary, that is, a certain height is required when forming the barriers, so exposure to increase strength is required. Is non-contracting and has a diameter of 10 to 30μ that transmits its light energy.
Glass beads of about m are suitable (for example, a mixing ratio of 40% to
80%) and 3% when forming the phosphor.
Mix the fluorescent materials of any of the primary colors. When glass beads are mixed, the viscosity (fluidity) at the time of use can be adjusted by adjusting the mixing ratio. Further, by forming the material layer P into a paste having a predetermined viscosity, the shape (layer thickness) can be maintained without flowing on the surface even if the posture of the transparent seat belt 11 changes such as being vertical.

Further, reference numerals 21 and 22 denote upper and lower conveying paths, respectively. As shown in FIG. 2, the upper and lower conveying paths 21 and 22 have a plurality of air holes 23 perforated on a smooth surface-treated upper surface. By blowing out air (fluid) from the air holes 23, the glass substrate G can be slid and conveyed while being floated from the upper surface thereof, which is a so-called air slider. Further, the lower conveyance path 22 extends at least the length of the glass substrate G to a position close to the moving roller 13 that has moved to the leftmost side in the drawing, and the upper side thereof is open, and an extension portion A (described later). The air hole 23 at the carry-in / carry-out position A) can suck air in addition to blowing air.
It is possible to position and hold the glass substrate G positioned at the position immovably. Further, a pair of positioning cushions (positioning means) 24 are erected on the leading end side and one side side of the position A of the lower conveyance path 22, and the glass substrate G carried in is fixed to the apparatus main body. Stop in position. In addition,
Water or the like may be used as the fluid to obtain a large floating force.

Reference numeral 25 denotes a work table. The work table 25 is provided with air holes 23 on its upper and lower surfaces so that the glass table G can be slid and held by blowing / sucking air on either side, and on both side surfaces thereof. The pair of wheels 26 provided in parallel move the position A of the lower transport path 22 to hold the glass substrate b on the lower surface side at the adjacent exposure position B, and reverse the position B to extend the lower transport path 22. The lower surface (upper surface during the previous operation) faces A, and at the same time, the upper conveyance path 21
The upper surface (the lower surface in the previous operation) is adjacent to. This work table 25 is located at the position A of the lower transport path 22.
Then, by inserting a pair of positioning pins 28 standing on the tip side into positioning holes 29 drilled at the upper and lower opposing positions, the glass substrate G is sucked to the position B while maintaining the positioning accuracy of the glass substrate G with respect to the apparatus main body. Can be transferred. That is, the work table 25 constitutes a substrate holding means.

Reference numeral 31 is a mask pattern, and the mask 31 is formed with a pattern that allows light to pass through only the portions corresponding to the constituent elements of the plasma display, and the thickness thereof is made uniform. This mask 31 is held by a holding means (not shown) so as to move in the same direction in a state of adjoining the moving roller 13 on the supply roller pair 12 side, and the moving roller 13 is positioned on the leftmost side in the drawing. Occasionally, the work table 25 is located at the exposure position B and faces the glass substrate G positioned and held on the lower surface via the transparent sheet belt 11 and the material layer P.

Reference numeral 32 is an ultraviolet lamp unit. The lamp unit 32 is supported by a supporting means so as to be located below the mask 31, and similarly moves in the same direction as being adjacent to the moving roller 13, but inside the lamp unit 32, It has a built-in ultraviolet lamp 33 extending parallel to the mask 31 in a direction orthogonal to the moving direction, and the ultraviolet lamp 33 can be moved independently by a transfer means guided by a rail or the like, and the glass can be moved in the same direction. The substrate G moves from one end side to the other end side to the outside while irradiating (exposing) one line of light on the material layer P through the mask 31 and the transparent sheet bell 11. A correction roller 34 that moves while slidingly contacting the lower surface of the mask 31 is fixed to the ultraviolet lamp 33 so as to move integrally. When the material layer P is moved for exposure, the correction roller 34 is moved. 34 also moves at a constant height to correct the bending of the mask 31 near the transparent seat belt 11 and make the distance from the glass substrate G uniform. That is, the ultraviolet lamp 33 constitutes the light source, the lamp unit 32 constitutes the exposure means, and the correction roller 34
Constitutes the distance correction means. Note that the mask 31 may be disposed so as to contact the transparent seat belt 11 during exposure, and the correction roller 34 causes the mask 31 and the transparent seat belt 11 to move.
The layer thickness of the material layer P may be made uniform via the.

Reference numeral 35 is a scraper, and 36 is a scraper support. The scraper 35 is slidably contacted with the transparent sheet belt 11 which is inclined between the moving rollers 14 and 15 while facing the material layer P side surface downward. The remaining uncured resin material (material layer P) is scraped off, and the support 36 urges the back surface of the transparent seat belt 11 toward the scraper 35 to surely make sliding contact. The scraper 35 and the support 36 are provided so as to move in the same direction while maintaining the positional relationship with the moving rollers 13 to 16, and are separated from each other at a timing when it is not necessary to scrape the resin material, and the transparent sheet. The belt 11 is not loaded. Further, the uncured resin material collected by the scraper 35 may be automatically supplied to the bottom coater 17 for reuse or may be stored.

Next, the manufacturing method will be described with reference to FIGS. First step (material layer formation, material layer recovery, glass substrate transfer: FIG. 3 to FIG. 6) First, the supply roller pair 12 is driven with the moving rollers 13 to 16 positioned on the rightmost side in the drawing. The transparent seat belt 11 is fed at a constant speed and a fixed amount of resin material is pushed out from the bottom coater 17. Therefore, the resin material is uniformly applied onto the transparent seat belt 11, and the material layer P having a high layer thickness accuracy is formed on the surface thereof. At this time, the transparent seat belt 11 is
The glass substrate G is curved outward from one end side by the peripheral surface of the moving roller 13 and is in a state in which one side thereof is open.

At this time, when the constituent elements are first formed, the uncured material layer P remaining on the surface of the transparent seat belt 11 is transparent as shown in FIGS. The scraper 35, which is sent together with the seat belt 11 and is in sliding contact with the surface thereof, scrapes and collects. Also work table
As shown in FIGS. 3 and 4, the reference numeral 25 holds the glass substrate G with one surface side on which the constituent elements are formed as an upper surface and lowers it to the position A of the lower transport path 22 and then releases the vacuum suction and air holes 23. The glass substrate G on the upper surface is blown out from the above to send it onto the upper conveyance path 21 by the air slide. Upper transport path
Similarly, 21 also carries the glass substrate G out of the apparatus by air slide.

Second step (material layer adhesion (laminating), glass substrate transfer: FIGS. 5 to 7) On the other hand, an unused glass substrate G which has been carried in by air slide to the position A of the lower transport path 22. Is positioned against the cushion 24 by vacuum suction, and when the work table 25 is positioned at the position A, the pin 28 of the lower transport path 22 is inserted into the hole 29 and positioned so that the glass substrate G is positioned.
Is vacuum-adsorbed and held on the lower surface. Therefore, the work table 25 can hold the glass substrate G while maintaining the positioning, and as shown in FIGS. 5 and 6, the glass substrate G is transferred to the exposure position B while keeping one surface as the lower surface. Can be held. The vacuum suction of the glass substrate G by the lower transport path 22 is released after being held by the work table 25.

Next, the driving of the supply roller pair 12 is stopped, one end of the transparent seat belt 11 is held so that the position of the transparent seat belt 11 is not displaced, and the moving rollers 13 to 16 are moved to the left side in the drawing. As shown in FIG. 7, the curved position by the peripheral surface of the moving roller 13 of the transparent sheet belt 11 is changed from one end side to the other end side (left side in the drawing) while maintaining the relative positional relationship in the parallel direction with respect to the glass substrate G. The glass substrate G is moved and gradually approached from the one end side to the one surface side of the glass substrate G. Therefore, the material layer P on the surface of the transparent seat belt 11 can be brought into close contact with the glass substrate G without interposing air. When there is the next glass substrate G, the carry-in to the position A is started by the air slide of the lower transport path 22 at this time.

Third step (exposure, glass substrate transfer: FIG. 8) Next, when the moving rollers 13 to 16 move to the leftmost side in the figure to bring the material layer P into close contact with the glass substrate G, the lower side thereof. The ultraviolet lamp 33 of the lamp unit 32 located at the position is moved from the outside of the other side of the glass substrate G to the outside of the one side of the mask 31.
Then, the material layer P is selectively exposed through the transparent sheet belt 11. At this time, the correction roller 34 moves together with the ultraviolet lamp 33 to correct the bending of the mask 31 and keep the distance to the glass substrate G constant. Therefore, the constituent elements obtained by selectively exposing the material layer P with high precision to cure the material layer P can be supported on the glass substrate G. It is preferable to turn on the ultraviolet lamp 33 in advance so as to prevent light from leaking and stabilize the amount of light.

Fourth Step (Peeling: FIG. 9, FIG. 10) Next, as shown in FIG. 9, the moving rollers 13 to 16 are moved rightward in the figure, contrary to the above-described second step. As a result, the bending position of the transparent seat belt 11 that bends on the other end side (left side in the drawing) of the glass substrate G is changed to one end side (right side in the drawing).
And the transparent sheet belt 11 is gradually separated from the glass substrate G from the other end side. Therefore, the uncured material layer P can be separated from the components supported by the glass substrate G together with the transparent seat belt 11.

Next, the glass substrate G on which the constituent elements are formed
As shown in FIG. 10, the work table 25 that holds the lower surface of the work table 25 is moved to the position A of the lower transport path 22 in a state where it is raised and then inverted to hold the lower surface glass substrate G on the upper surface side. The same operation is repeated from the first step. If there is the next glass substrate G, the lower transport path 22 is used at this time.
Is positioned at position A.

As described above, in the present embodiment, the material layer P can be accurately formed on the transparent sheet belt 11 which is conveyed at a constant speed so as to have a layer thickness which becomes the height of the constituent elements by one application by the bottom coater 17. it can. Then, while the supply roller pair 12 is stopped, the moving rollers 13 to 16 are moved to the glass substrate G.
The transparent seat belt by moving between one end side and the other end side of
By moving the curved position of 11, the transparent sheet belt 11 can be gradually brought close to one end side of the glass substrate G and the material layer P can be brought into close contact with the glass substrate G without interposing air therebetween. Can be gradually separated from the other end side of the glass substrate G and can be separated from the constituent elements together with the uncured material layer P. Further, at the time of exposure, the ultraviolet lamp 33 moves together with the correction roller 34 to correct the flexure of the mask 31, and the material layer P can be selectively exposed and cured in the area direction with high accuracy by the uniform light amount of one line. Therefore, the constituent elements can be formed with high precision and supported on the glass substrate G. The uncured material layer P can be recovered by the scraper 35 and reused. Therefore, it is possible to easily and inexpensively form high-precision components on one surface side of the glass substrate G.

[0043]

According to the first and fifth aspects of the invention, a material layer of a photocurable material is formed on the surface of a flexible transparent seat belt, and the material layer is adhered to a glass substrate in a mask. The material layer is a raw material of a photocurable material because a component is formed on a glass substrate by selective exposure through a pattern and curing, and then the uncured material layer is peeled off together with the transparent sheet belt from the component. The layer thickness can be accurately formed by coating the transparent sheet belt once on the transparent sheet belt, and the constituent element can be easily and accurately formed by selectively exposing the material layer. In addition, the material layer can be easily adhered to the glass substrate by bending (curving) the transparent sheet belt or the like, and can be peeled from the constituent elements. In addition, the transparent seat belt can be recycled or used again, and the uncured material layer can be recovered and used without being washed away. Therefore,
The components of the plasma display panel can be manufactured with high accuracy and at low cost.

According to the second and sixth aspects of the present invention, since the curved position of the transparent sheet belt is moved without changing the relative position with respect to the glass substrate, the transparent sheet belt is gradually approached from the end side. Can be separated,
While the material layer is brought into close contact with the glass substrate without interposing air, the uncured portion of the material layer can be easily peeled off. Therefore, there is no need for a special device for adhering / peeling the material layer, and a simple and inexpensive device can be obtained.

According to the invention described in claims 3, 4, 7 and 8, since the glass substrate is carried in and out of the carrying path by, for example, an air slide and is positioned and held by vacuum suction, it is a large area glass substrate. However, it can be easily transported and can be positioned and held without bending or misalignment. Further, when forming a component with the lower surface of the glass substrate as one surface side, the one surface side on which the constituent element is formed is sent up to the conveyance path as the upper surface by reversing, so that a similar method (for example, , Air slide). Therefore, it can be applied to the production of a large-sized glass substrate for a large-sized plasma display, and the constituent elements can be accurately formed on the large-area glass substrate.

According to the ninth aspect of the present invention, the light source extending in one direction is transferred in the orthogonal direction to expose the material layer, so that the material layer can be uniformly exposed. Therefore, the dimensional accuracy does not vary in the area direction, and the constituent elements can be accurately formed. According to the tenth aspect of the invention, since the distance of the mask pattern to the glass substrate is corrected to a constant value as the light source is moved, a mask that does not bend even in a device configuration in which the transparent sheet belt is located below the glass substrate. The material layer can be selectively exposed through the pattern. Therefore, the constituent elements can be formed on the glass substrate with high accuracy.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a manufacturing apparatus for carrying out a method of manufacturing a plasma display panel according to the present invention, and is a conceptual overall configuration diagram thereof.

FIG. 2 is an enlarged perspective view showing a part thereof.

FIG. 3 is an operation state diagram illustrating a manufacturing method thereof.

FIG. 4 is an operation state diagram following FIG. 3 for explaining the manufacturing method.

5 is an operation state diagram following FIG. 4 for explaining the manufacturing method. FIG.

FIG. 6 is an operation state diagram following FIG. 5 for explaining the manufacturing method.

FIG. 7 is an operation state diagram following FIG. 6 for explaining the manufacturing method.

FIG. 8 is an operation state diagram following FIG. 7 for explaining the manufacturing method.

9 is an operation state diagram following FIG. 8 for explaining the manufacturing method.

FIG. 10 is an operation state diagram following FIG. 9 for explaining the manufacturing method.

[Explanation of symbols]

11 Transparent Seat Belt 12 Supply Roller Pair (First Supporting Part, Material Layer Conveying Means) 13 Moving Roller (Curved Surface, Material Layer Conveying Means, Adhering Means, Peeling Means) 14-16 Moving Rollers (Second Supporting Part, Material layer transfer means, contact means, peeling means) 17 Bottom coater (material layer forming means) 21, 22 Transfer path 23 Air holes 24 Positioning cushion (positioning means) 25 Work table 31 Mask pattern 32 Ultraviolet lamp unit (exposure means) 33 Ultraviolet Lamp (light source) 34 Straightening roller (distance straightening means) G Glass substrate P Material layer

Claims (10)

[Claims] 1. A method for producing a constituent element of a plasma display panel on a glass substrate, which comprises flexibly forming a paste-like uncured material in which a constituent material of the constituent element is mixed with a photocurable resin as needed. And a second step of applying a material layer on the surface of the transparent sheet belt to one surface side of the glass substrate to be positioned and held, and a glass substrate and a transparent substrate. The third step of exposing and curing the material layer between the seat belts through the mask pattern of the component to form the component, and the curing and uncuring with the transparent seat belt from the component supported on the glass substrate. And a fourth step of peeling off the material layer of (4). 2. In the second step, the transparent sheet belt is bent at one end of the glass substrate in a direction in which it is separated from one side of the glass substrate, and the curved position of the transparent sheet belt is changed to a glass substrate. By moving from one end side to the other end side of the transparent sheet belt to the glass substrate in order to bring the uncured material layer into close contact with the one surface side of the glass substrate, and in the fourth step, the transparent sheet belt From a state of being curved in a direction away from the other side of the glass substrate and being close to one surface side of the glass substrate, by moving the curved position of the transparent sheet belt from the other side of the glass substrate to the one side, The plasma display according to claim 1, wherein the transparent sheet belt is sequentially separated from the glass substrate and is separated from the component supported by the glass substrate together with the uncured material layer. How to make a panel. 3. In the second step, the glass substrate is slid in a state of being floated by a fluid blown out from a transfer path, carried in, and then vacuum-adsorbed to position and hold the glass substrate, and the glass substrate is also held after the fourth step. 2. The method for manufacturing a plasma display panel according to claim 1, wherein the one surface side on which the constituent elements are formed is an upper surface side, and is slid out in a state of being levitated by a fluid blown out from the conveying path. 4. In the second step, after the glass substrate is positioned on the transfer path, the upper surface is vacuum-sucked and transferred from the transfer path to a position where the material layer is brought into close contact, and one surface side is positioned and held as the lower surface, 4. The method for manufacturing a plasma display panel according to claim 3, wherein after the fourth step, one side of the glass substrate on which the constituent elements are formed is inverted and the glass substrate is turned to the upper side and sent out onto the transport path. 5. An apparatus for producing constituent elements of a plasma display panel on a glass substrate, comprising substrate holding means for positioning and holding the glass substrate, and a constituent material of the constituent elements in a photocurable resin, if necessary. A material layer forming means for forming a material layer by applying the pasty uncured material on the surface of a flexible transparent sheet belt; and a glass substrate on which the material layer on the surface is moved by moving the transparent sheet belt. Material layer conveying means for conveying to a position facing one surface side, adhering means for bringing a transparent sheet belt close to a positioned glass substrate to bring the material layer on the surface into close contact, and configured to correspond to the positioned glass substrate Mask holding means for positioning and holding the mask pattern of the element, and mask pattern for positioning the material layer between the glass substrate and the transparent sheet belt. An exposure means for forming the component was cured by exposure through a separating means for separating the material layer of uncured with transparent seat belt from supported components to the glass substrate cures
An apparatus for manufacturing a plasma display panel, comprising: 6. The material layer conveying means reciprocates between one end side and the other end side of the glass substrate at a position in contact with the rear surface of the surface of the transparent sheet belt on which the material layer is formed and close to one surface side of the glass substrate. To the curved surface, a first support portion that is provided at a position where the glass substrate is extended outward at one end side and supports one end side of the transparent seat belt, and a first support portion that is provided at a position separated from one surface side of the glass substrate. A second supporting portion that supports the other end of the transparent seat belt supported by the supporting portion via a curved surface, and the material layer conveying means also serves as a contacting means and a peeling means. Item 5. A plasma display panel manufacturing apparatus according to Item 5. 7. A transport path for sliding and transporting the glass substrate in a state of being floated by a fluid blowing out, and a positioning means for positioning the glass substrate carried in on the transport path, the substrate holding means being provided. The apparatus for manufacturing a plasma display panel according to claim 5, wherein the glass substrate positioned by the positioning means is vacuum-sucked to position and hold the material layer in a position where the material layer is in close contact. 8. The positioning means is configured to position the material layer on the conveying path in the vicinity of a position where the material layer is in close contact with the substrate holding means, and the glass substrate positioned by the positioning means is vacuum-adsorbed on the upper surface of the material to hold the material. It is characterized in that it is configured so that it is transferred to the layer contact position and positioned and held with the lower surface as the one surface side, and the glass substrate formed with the one surface side is inverted and the one surface side is the upper surface and is delivered onto the transport path. The apparatus for manufacturing a plasma display panel according to claim 7. 9. The light source that extends in a direction orthogonal to the direction from one end to the other end of the glass substrate and is parallel to the glass substrate as the exposing means, and the light source from one end to the other end of the glass substrate or vice versa. 6. The apparatus for manufacturing a plasma display panel according to claim 5, further comprising: a transfer unit that transfers in a direction. 10. A transparent sheet belt is located on the lower surface side of the glass substrate, and the exposing means is configured to expose a material layer through the transparent sheet belt and a mask pattern. 10. The apparatus for manufacturing a plasma display panel according to claim 9, further comprising a distance correcting unit that moves in parallel to correct a distance of the mask pattern to the glass substrate.