KR100898571B1 - Improved Air Compression Type Nozzle Dispenser and Coating Device for Dispensing Fluorescent Fluids Having the Same - Google Patents

Abstract

The present invention discloses an air pressurized nozzle dispenser for supplying a fluorescent liquid to form a pixel of a large area plasma display panel (PDP) and a fluorescent liquid coating apparatus having the same. Two or more air pressurized nozzle dispensers according to the present invention are provided, each air pressurized nozzle dispenser comprising: a first sidewall; A second sidewall opposite the first sidewall; A chamber formed to inject fluorescent solution into the first sidewall and the second sidewall; And a plurality of nozzles formed under the first sidewall and the second sidewall, and for discharging a fluorescent liquid in the chamber, and an intermediate position of an outer surface of either the first sidewall or the second sidewall. A fluorescent liquid supply passage for supplying the fluorescent liquid is provided in a horizontal direction, and one or more air supply passages are provided in a horizontal direction on the upper side of the fluorescent liquid supply passage along the length direction of each nozzle dispenser, The phosphor supply passage and the at least one air supply passage are each in fluid communication with the chamber, and the at least two air pressurized nozzle dispensers are support members to be fixedly mounted on top of each of the first sidewall and the second sidewall. Characterized in that it further comprises.

PDP, Air Pressurized Nozzle Dispenser

Description

Improved Air Compression Type Nozzle Dispenser and Coating Device for Dispensing Fluorescent Fluids Having the Same}

1A is a side cross-sectional view of an air pressurized nozzle dispenser according to the related art and a phosphor coating device including the same.

FIG. 1B is a schematic view of applying a fluorescent liquid onto a PDP panel using an air pressurized nozzle dispenser according to the related art shown in FIG. 1A and a fluorescent liquid applying device having the same.

2 is a side cross-sectional view of the air pressurized nozzle dispenser according to an embodiment of the present invention.

3A is a side cross-sectional view of an air pressurized nozzle dispenser according to another embodiment of the present invention.

3B is an enlarged cross-sectional perspective view of an air manifold portion of the air pressurized nozzle dispenser shown in FIG. 5A.

Figure 4 is a schematic diagram for explaining the operation of the air pressurized nozzle dispenser of the present invention shown in Figures 2 and 3 and the fluorescent liquid coating apparatus having the same.

The present invention relates to an air pressurized nozzle dispenser and a fluorescent liquid applying apparatus having the same. More specifically, the present invention relates to an air pressurized nozzle dispenser for supplying a fluorescent liquid required for pixel formation of a large-area plasma panel display (PDP) and a fluorescent liquid coating apparatus having the same.

Recently, the use of plasma panel displays (PDPs) is rapidly increasing in the field of display monitors or TVs. In order to manufacture such a PDP, a barrier rib is formed to form pixels, and phosphors corresponding to R, G, and B are injected into the barrier rib by using a dispensing device.

A coating apparatus for supplying a fluorescent liquid into a partition of minute size typically includes a nozzle dispenser having a plurality of nozzle holes through which the fluorescent liquid is supplied and discharged.

1A is a side cross-sectional view of an air pressurized nozzle dispenser according to the related art and a phosphor coating device including the same.

Referring to FIG. 1A, the fluorescent liquid applying device 100 according to the related art is a nozzle dispenser 110, a fluorescent liquid supply device 120, and an air pressurizing device 130 that applies pressure by supplying air to the fluorescent liquid. Consists of. The nozzle dispenser 110 is formed of a side wall 114 having a chamber 116 through which a fluorescent liquid can be injected, and a lower nozzle side of the side wall 114 includes a plurality of nozzles for supplying a fluorescent liquid between PDP partition walls. 118: Only one is shown in FIG. 1A). The fluorescent liquid is supplied to the chamber 116 in the nozzle dispenser 110 by the fluorescent liquid supply device 120, and the supplied phosphorescent liquid is pressurized by the air pressurizing device 130 to supply the PDP pixel through the nozzle 118. Supplied into the bulkhead.

FIG. 1B is a schematic view of applying a fluorescent liquid onto a PDP panel using an air pressurized nozzle dispenser according to the related art shown in FIG. 1A and a fluorescent liquid applying device having the same.

Referring to FIG. 1B, the fluorescent liquid applying apparatus 100 having an air pressurized nozzle dispenser according to the related art applies a fluorescent liquid onto the PDP panel 150 while being attached to the gantry 140.

However, the fluorescent liquid coating device 100 having the air pressurized nozzle dispenser according to the prior art is small in size, for example, on a large area PDP panel 150 of 6 chamfers having a width of 2.2 m and a length of 2, for example. In the case of applying the fluorescent solution, typically four phosphor coating devices 100 should be attached to the gantry 140 and used. In addition, when the fluorescent liquid is applied, the first chamfer 151 and the second chamfer 152 is applied in the upward direction, and then the four nozzles 100 are moved in the right direction and then applied again in the downward direction. After the application of the fluorescent solution of the first chamfer 151 and the second chamfer 152 is finished, the fluorescent solution is applied in the same manner to the third chamfer 153 and the fourth chamfer 154, and further, the fifth chamfer ( 155 and the sixth chamfer 156 is applied in the same manner as the fluorescent liquid.

In the fluorescent liquid applying apparatus 100 provided with the air pressurized nozzle dispenser which concerns on the prior art mentioned above, fluorescent liquid application | coating is carried out by the 1st chamfering 151 and the 2nd chamfering 152; Third chamfer 153 and fourth chamfer; And since the fluorescent liquid coating is performed while moving up and down for each pair of the fifth chamfer 155 and the sixth chamfer 156, there is a problem that the application time is long.

In addition, when the application of the fluorescent solution of each chamfering pair is finished, since the gantry 140 has to move the four fluorescent solution applying apparatus 100 to the next chamfering pair, the application of the fluorescent solution is stopped and the intermittent application is performed. Such intermittent application not only lengthens the application time additionally, but also has a problem in that it is not easy to constantly control the application amount of the fluorescent liquid.

Furthermore, it is not easy to precisely control the pitch spacing between the nozzles when the four phosphor coating devices 100 move to the right during the top and bottom coating of each chamfer, so that the nozzle 118 (Fig. 1B) of the nozzle dispenser 110 There is a possibility that an overlapping portion between the layers (not shown) occurs, and thus, a fine step is generated in the applied fluorescent solution.

In addition, the air supply by the air pressurizing device 130 is made on the upper side of the side wall 114, the possibility of the fluorescent liquid is introduced into the air supply pipe during the air supply, the nozzle dispenser is replaced with a solid fluorescence debris when replacing the nozzle dispenser There is a risk of entering the nozzle of the nozzle and contaminating the nozzle or disturbing the function of the nozzle.

SUMMARY OF THE INVENTION The present invention solves the problems of the prior art described above, and according to a first aspect of the present invention, there is provided an air pressurized nozzle dispenser for supplying a fluorescent liquid to form a pixel of a large area plasma display panel (PDP). Wherein at least two air pressurized nozzle dispensers are provided, each air pressurized nozzle dispenser comprising: a first sidewall; A second sidewall opposite the first sidewall; A chamber formed to inject fluorescent solution into the first sidewall and the second sidewall; And a plurality of nozzles formed under the first sidewall and the second sidewall, and for discharging a fluorescent liquid in the chamber, and an intermediate position of an outer surface of either the first sidewall or the second sidewall. A fluorescent liquid supply passage for supplying the fluorescent liquid is provided in a horizontal direction, and one or more air supply passages are provided in a horizontal direction on the upper side of the fluorescent liquid supply passage along the length direction of each nozzle dispenser, The phosphor supply passage and the at least one air supply passage are each in fluid communication with the chamber, and the at least two air pressurized nozzle dispensers are support members to be fixedly mounted on top of each of the first sidewall and the second sidewall. To provide an air pressurized nozzle dispenser further comprising.

According to a second aspect of the present invention, there is provided a phosphor coating device for applying a phosphor to form pixels of a large area plasma display panel (PDP), each device comprising: a first sidewall; A second sidewall opposite the first sidewall; A chamber formed to inject fluorescent solution into the first sidewall and the second sidewall; And at least two air pressurized nozzle dispensers formed under the first sidewall and the second sidewall and including a plurality of nozzles for discharging the fluorescent liquid in the chamber. A fluorescent liquid supply device supplying a fluorescent liquid to the at least two air pressurized nozzle dispensers; An air supply and pressurization device for supplying pressurized air to the at least two air pressurized nozzle dispensers; A level sensor confirming a level of the fluorescence solution in the chamber; And a controller for controlling the operation of each of the two or more air pressurized nozzle dispensers, the level sensor, the phosphor supply device, and respective components of the air supply and pressurization device. In the intermediate position of the outer side of either the first side wall or the second side wall of the nozzle dispenser, a fluorescent liquid supply passage for supplying the fluorescent liquid is provided in a horizontal direction, and is above the fluorescent liquid supply passage. One or more air supply passages are provided in a horizontal direction along a length direction of each of the air pressurized nozzle dispensers, wherein the phosphor supply passage and the one or more air supply passages are each in fluid communication with the chamber, and the two The above air pressurized nozzle dispenser is fixedly mounted on top of each of the first sidewall and the second sidewall. It is to provide a phosphor coating device further comprising a support member to be.

According to a third aspect of the present invention, an air pressurized nozzle dispenser for supplying a fluorescent liquid to form pixels of a large area plasma display panel (PDP), comprising: a first sidewall; A second sidewall opposite the first sidewall; A chamber formed to inject fluorescent solution into the first sidewall and the second sidewall; The air manifold is formed in the upper portion of the first side wall and the second side wall in a recessed shape, a plurality of grooves through which the air can be supplied into the chamber, the upper portion is provided with a cover ); And a plurality of nozzles formed under the first sidewall and the second sidewall, and for discharging a fluorescent liquid in the chamber, and an intermediate position of an outer surface of either the first sidewall or the second sidewall. The fluorescent liquid supply passage for supplying the fluorescent liquid is provided in a horizontal direction, and in fluid communication with the chamber, at least one air supply passage in the horizontal direction of the nozzle dispenser is horizontally above the fluorescent liquid supply passage It is provided in the direction, and to provide an air pressurized nozzle dispenser in fluid communication with the air manifold.

According to a fourth aspect of the present invention, there is provided an air pressurized nozzle dispenser for supplying a fluorescent liquid to form a pixel of a large area plasma display panel (PDP), wherein at least two air pressurized nozzle dispensers are provided. Each air pressurized nozzle dispenser comprises: a first sidewall; A second sidewall opposite the first sidewall; A chamber formed to inject fluorescent solution into the first sidewall and the second sidewall; The air manifold is formed in the upper portion of the first side wall and the second side wall in a recessed shape, a plurality of grooves through which the air can be supplied into the chamber, the upper portion is provided with a cover ); And a plurality of nozzles formed under the first sidewall and the second sidewall, and for discharging a fluorescent liquid in the chamber, and an intermediate position of an outer surface of either the first sidewall or the second sidewall. And a fluorescent liquid supply passage for supplying the fluorescent liquid in a horizontal direction, in fluid communication with the chamber, and at least one air supply passage along the longitudinal direction of each nozzle dispenser on the upper side of the fluorescent liquid supply passage. Is provided in a horizontal direction, and in fluid communication with the air manifold, the at least two air pressurized nozzle dispensers further comprising support members to be fixedly mounted on top of each of the first sidewall and the second sidewall. An air pressurized nozzle dispenser is provided.

According to a fifth aspect of the present invention, there is provided a fluorescent liquid coating apparatus for applying a fluorescent liquid to form pixels of a large area plasma display panel (PDP), comprising: a first sidewall; A second sidewall opposite the first sidewall; A chamber formed to inject fluorescent solution into the first sidewall and the second sidewall; The air manifold is formed in the upper portion of the first side wall and the second side wall in a recessed shape, a plurality of grooves through which the air can be supplied into the chamber, the upper portion is provided with a cover ); An air pressurized nozzle dispenser formed under the first sidewall and the second sidewall and including a plurality of nozzles for discharging the fluorescent liquid in the chamber; A fluorescent liquid supply device supplying a fluorescent liquid to the air pressurized nozzle dispenser; An air supply and pressurization device for supplying pressurized air to the air pressurized nozzle dispenser; A level sensor confirming a level of the fluorescence solution in the chamber; And a controller for controlling the operation of each of the components of the air pressurized nozzle dispenser, the level sensor, the fluorescent liquid supply device, and the air supply and pressurization device. A fluorescent solution supply passage for supplying the fluorescent liquid is provided in a horizontal direction at an intermediate position of any one of the outer surfaces, and is in fluid communication with the chamber, and the length of the nozzle dispenser is higher than the fluorescent liquid supply passage. Accordingly, at least one air supply passage is provided in a horizontal direction, and to provide a fluorescent liquid applying device in fluid communication with the air manifold.

According to a sixth aspect of the present invention, a phosphor coating device for applying a phosphor to form pixels of a large area plasma display panel (PDP), each device comprising: a first sidewall; A second sidewall opposite the first sidewall; A chamber formed to inject fluorescent solution into the first sidewall and the second sidewall; The air manifold is formed in the upper portion of the first side wall and the second side wall in a recessed shape, a plurality of grooves through which the air can be supplied into the chamber, the upper portion is provided with a cover ); And at least two air pressurized nozzle dispensers formed under the first sidewall and the second sidewall and including a plurality of nozzles for discharging the fluorescent liquid in the chamber. A fluorescent liquid supply device supplying a fluorescent liquid to the at least two air pressurized nozzle dispensers; An air supply and pressurization device for supplying pressurized air to the at least two air pressurized nozzle dispensers; A level sensor confirming a level of the fluorescence solution in the chamber; And a controller for controlling the operation of the at least two air pressurized nozzle dispensers, the level sensor, the phosphor supply device, and respective components of the air supply and pressurization device; In the intermediate position of the outer side of any one of the two side walls, a fluorescent liquid supply passage for supplying the fluorescent liquid is provided in a horizontal direction, and is in fluid communication with the chamber, the respective nozzles on the upper side of the fluorescent liquid supply passage. At least one air supply passage is provided in a horizontal direction along a lengthwise direction of the dispenser, in fluid communication with the air manifold, wherein the at least two air pressurized nozzle dispensers are respectively located above the first sidewall and the second sidewall. To provide a fluorescent liquid coating device further comprising a support member to be fixed to.

Further advantages of the present invention will become apparent from the following description with reference to the accompanying drawings in which like or like reference numerals designate like elements.

Hereinafter, the present invention will be described with reference to embodiments and drawings of the present invention.

2 is a side cross-sectional view of an air pressurized nozzle dispenser according to an embodiment of the present invention, and FIG. 3A is a side cross-sectional view of an air pressurized nozzle dispenser according to another embodiment of the present invention. 3B is a view showing a perspective view from which the support member is removed from the air pressurized nozzle dispenser shown in FIG. 3A, and FIG. 4 is an air pressurized nozzle dispenser of the present invention shown in FIGS. 2 and 3 and the same. It is a figure which shows the schematic diagram for demonstrating the operation | movement of a fluorescent substance coating apparatus.

First, referring to FIGS. 2 and 4, the air pressurized nozzle dispenser 210 of the present invention may include a first sidewall 212; A second sidewall 214 opposite the first sidewall 212; A chamber 216 formed to inject fluorescent solution into the first sidewall 212 and the second sidewall 214; And a nozzle 218 formed under the first sidewall 212 and the second sidewall 214 to discharge the fluorescent liquid in the chamber 216. In the intermediate position of the outer side surface of the second side wall 214, a fluorescent liquid supply passage 223 for supplying the fluorescent liquid is provided in the horizontal direction and is in fluid communication with the chamber 216 on the inner side of the second side wall 214. . In addition, the air supply passage 233 is provided in the horizontal direction on the upper side than the fluorescent liquid supply passage 223, the fluid and the chamber 216 at the upper surface of the first side wall 212 and the second side wall 214 Communicating. As can be seen in the schematic diagram of FIG. 4, one or more air supply passages 233 are provided along the longitudinal direction of the nozzle dispenser 210.

Referring back to Figure 2, the air pressurized nozzle dispenser 210 of the present invention is characterized in that it comprises a support member (240) on the top. This support member 240 may be used to connect two or more air pressurized nozzle dispensers 210 in series, for example, in the manufacture of large area PDP panels. More specifically, in the case of manufacturing a six-sided large-area PDP panel having a horizontal length of 2.2 m and a vertical length of 2 m, in theory, when the horizontal length of the air pressurized nozzle dispenser 210 is manufactured to be 2.2 m or more, do. However, in this case, there arises a problem that the air pressurized nozzle dispenser 210, which requires a high degree of flatness (straightness) of microns in the longitudinal direction, is bent in the longitudinal direction. Therefore, the maximum length of the nozzle dispenser 210 that can be currently implemented is about 1.5 m. In order to solve this problem, in the present invention, after manufacturing two or more air pressurized nozzle dispenser 210, in consideration of the degree of bending in the longitudinal direction of the support member (support) 240 these two or more air pressurized The nozzle dispenser 210 is attached to a support member 240 to be used. As a result, a large area PDP panel can be manufactured.

Referring to FIGS. 2 and 4 again, the fluorescent liquid applying device 400 of the present invention is a fluorescent liquid supply device 420 for supplying a fluorescent liquid to the air pressurized nozzle dispenser 410 and the air pressurized nozzle dispenser 410. ), An air supply and pressurization device 430 for supplying pressurized air to the air pressurized nozzle dispenser 410. The air pressurized nozzle dispenser 410 is the same as the air pressurized nozzle dispenser 210 shown in FIG. 2. Although only one air pressurized nozzle dispenser 210 is shown in FIG. 4 for illustrative purposes, those skilled in the art will fully understand that two or more air pressurized nozzle dispensers 210 may be attached and used to the support member 240. will be.

Within the chamber 416, a level sensor 440 is provided for checking the level of the fluorescent liquid. The fluorescent liquid supply device 420 is connected to the fluorescent liquid storage tank 426 for storing the fluorescent liquid, the fluorescent liquid supply passage 223 shown in FIG. 2, and the fluorescent liquid is supplied from the fluorescent liquid storage tank 426. A fluorescent liquid supply pipe 422, provided between the fluorescent liquid supply pipe 422 and the second sidewall 414, for controlling a supply of the fluorescent liquid, and a fluorescent liquid control valve 424, and the fluorescent liquid storage tank ( 426 and a fluorescent solution pressurizing device 428 for pressurizing the fluorescent solution. In addition, the air supply and pressurizing device 430 is connected to the air pressurizing device 438, the air pressurizing device 438, a regulator for maintaining a constant pressing force of the air is pressurized and supplied by the air pressurizing device 438 a regulator 436, a phosphor coating control valve 434 provided between the regulator 436 and the second sidewall 414, which controls the start and end of phosphor coating, and pressurized air is supplied; And an air supply pipe 432 having one or more branch tubes 432a, 432b, 432c, 432d for connecting with one or more air supply passages 233 shown in FIG. In the present invention, the fluorescent liquid application control valve 434 is preferably a three-way valve. In addition, although the air supply pipe 432 is shown in Figure 4 having four branch pipes (432a, 432b, 432c, 432d), this is illustrative and the number of branch pipes can be increased or decreased as needed by those skilled in the art. You will understand enough. In addition, those skilled in the art, the air pressure nozzle dispenser (210, 410) of the present invention shown in Figures 2 and 4 and the level sensor 440, the fluorescent solution supply device 420 of the fluorescent coating device 400 having the same, And all operations of the respective components of the air supply and pressurization device 430 can be fully understood that they can be controlled by one controller (not shown).

Referring to FIGS. 2 and 4 again, after the level sensor 440 checks the level of the fluorescent liquid in the chamber 416, the fluorescent liquid control valve 424 is opened in response to the signal of the level sensor 440, thereby reducing the amount of fluorescent liquid. Fluorescent liquid is supplied into the chambers (216, 416). In this case, the pressing force for supplying the fluorescent liquid is provided by the fluorescent liquid pressurizing device 428 connected to the fluorescent liquid storage tank 426. When the completion of the phosphor supply is confirmed by the level sensor 440, the phosphor control valve 424 is closed in accordance with the signal of the level sensor 440, and the two or more nozzle dispensers 210 and 410 start application on the PDP panel. Reach position. Thereafter, the fluorescent liquid application control valve 434 is opened so that the air pressurized by the air pressurizing device 438 passes through the air supply pipe 432 and the plurality of branch pipes 432a, 432b, 432c, and 432d. 216,416, and the fluorescent liquid application is started. The application of the fluorophore is for example a nozzle dispenser 210,410 and another nozzle dispenser 210,410 when a pair of nozzle dispensers 210, 210 or 410, 410 are used on the six chamfered large area PDP panels as described above. ) Apply the first chamfer 151 and the second chamfer 152 at a time. When the application of the fluorescent solution to the first chamfer 151 and the second chamfer 152 is finished, the fluorescent liquid application control valve 434 exhausts pressurized air in the chambers 216 and 416 through an exhaust valve by a switching operation. At the same time the nozzle dispensers 210, 210 and 410, 410 move onto the third chamfer 153 and the fourth chamfer 154. When the exhaust of the pressurized air and the moving of the nozzle dispenser (210, 210 and 410, 410) to the third chamfer 153 and the fourth chamfer 154, the coating of the fluorescent solution is stopped, so that the coating of the fluorescent solution is intermittent coating. Thereafter, the fluorescent liquid application control valve 434 is opened so that the air pressurized by the air pressurizing device 438 passes through the air supply pipe 432 and the plurality of branch pipes 432a, 432b, 432c, and 432d. 216 and 416, and the fluorescent solution is applied to the third chamfer 153 and the fourth chamfer 154, and the same process performed in the first chamfer 151 and the second chamfer 152 is repeated. Subsequently, the same process performed in the first chamfer 151 and the second chamfer 152 for the fifth chamfer 155 and the sixth chamfer 156 is repeated. In addition, for example, when manufacturing a large area PDP panel having 9 chamfers (for example, three chamfers and three chamfers), three nozzle dispensers 210, 210, 210, or 410, 410, 410 are attached to the support member 240. Can be used. This configuration not only enables the production of large area PDP panels, but also significantly reduces the overall process time.

On the other hand, when the level sensor 440 detects that the level of the fluorescent solution is below a predetermined level after completion of the multi-faceted coating operation of the fluorescent solution in the manufacturing of the large-area panel described above, a signal for charging the fluorescent solution is transmitted to the controller. As described above, the fluorescent liquid control valve 424 is opened according to the charge request signal of the level sensor 440 to supply the fluorescent liquid into the chambers 216 and 416.

The air supply and pressurization device 430 of the present invention uses the regulator 436 and the three-way valve 434 to each part (P1, P2, P3) of the air supply pipe 432 such as a tube for transmitting the air pressing force. It is possible to control the pressure of the fluorine solution at a constant pressure by controlling the pressure to be constant at all times.

Figure 3a is a side cross-sectional view of the air pressurized nozzle dispenser according to another embodiment of the present invention, Figure 3b is an enlarged cross-sectional perspective view of the air manifold portion of the air pressurized nozzle dispenser shown in Figure 3a One drawing.

3A and 3B, the air pressurized nozzle dispenser 310 according to another embodiment of the present invention is formed in a recessed shape on the first sidewall 312 and the second sidewall 314, and includes a chamber ( 316 and an air pressurized nozzle dispenser 210 of the invention shown in FIG. 2 except that it further includes an air manifold 350 in fluid communication with the air supply passage 333. Substantially the same.

As shown in FIGS. 3A and 3B, the air supply passage 333 is in fluid communication with the air manifold 350 instead of in direct fluid communication with the chamber 316. In addition, a plurality of grooves 352 are formed in the bottom portion of the air manifold 350 through which air can be supplied into the chamber 316. When the air pressurized by the air pressurizing device 438 shown in FIG. 4 is supplied into the air manifold 350 through the air supply passage 333, the supplied air passes through the plurality of grooves 352 to the chamber ( 316 into the shower in the same manner. As a result, in the air pressurized nozzle dispenser 310 of the present invention shown in FIG. 3, a pressing force of air delivered to the fluorescent liquid may be uniformly delivered as compared to the air pressurized nozzle dispenser 210 shown in FIG. 2. . That is, in the air pressurized nozzle dispenser 210 of FIG. 2, the pressurized air is instantaneously transferred to the upper surface of the fluorescent solution somewhat unevenly, so that the fluorescent liquid may be removed, but the air pressurized type of the present invention shown in FIG. In the nozzle dispenser 310, pressurized air is almost uniformly delivered to the upper surface of the fluorescent liquid, thereby significantly reducing the problem of splashing of the fluorescent liquid. The embodiment of the air pressurized nozzle dispenser 310 of the present invention shown in FIG. 3 is particularly useful when using a low viscosity phosphor.

3A shows a cover 354 for sealing the air manifold 350, the use of this cover 554 is optional. If the cover 554 is not used, the support 540 may function as the cover 554.

Although the air pressurized nozzle dispensers 210 and 310 of the present invention shown in FIGS. 2 and 3A and 3B described above are shown to be provided with first side walls 212 and 312 and second side walls 214 and 314 separately, this is illustrated. As will be appreciated, those skilled in the art will fully appreciate that the first sidewalls 212 and 312 and the second sidewalls 214 and 314 may be provided as a unitary body.

The air pressurized nozzle dispenser and the fluorescent liquid applying device having the same according to the present invention achieve the following effects.

1. Large area intermittent application of fluorescent solution is possible.

2. The process is simplified and the overall process time is significantly reduced compared to the prior art.

3. It is possible to control the pressure of the fluorescent solution, so that it can be used for high viscosity and low viscosity fluorescent solution. In particular, it is easy to control the supply of the fluorescent solution uniformly at the beginning and the end of the PDP panel to be applied even when applying intermittently.

4. The use of the nozzle dispenser significantly reduces the likelihood of the fluorescing solution being introduced into the air supply line, significantly reducing the possibility of contamination of the nozzles of the replaced nozzle dispenser and the risk of disturbing nozzle function.

As various modifications may be made to the constructions and methods described and illustrated herein without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings be exemplary, and not intended to limit the invention. It is not. Therefore, the scope of the present invention should not be limited by the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims (18)

In the air pressurized nozzle dispenser for supplying a fluorescent liquid to form pixels of a large area plasma display panel (PDP), Two or more air pressurized nozzle dispensers are provided, and each air pressurized nozzle dispenser First sidewalls; A second sidewall opposite the first sidewall; A chamber formed to inject fluorescent solution into the first sidewall and the second sidewall; And A plurality of nozzles formed under the first sidewall and the second sidewall, and for discharging a fluorescent liquid in the chamber; Including, In the intermediate position of the outer side of any one of the first side wall or the second side wall, a fluorescent liquid supply passage for supplying the fluorescent liquid is provided in the horizontal direction, One or more air supply passages are provided in a horizontal direction on the upper side of the fluorescent liquid supply passage along the length direction of each nozzle dispenser, The phosphor supply passage and the one or more air supply passages are each in fluid communication with the chamber, The at least two air pressurized nozzle dispensers further comprise support members to be fixedly mounted on top of each of the first sidewall and the second sidewall. Air pressurized nozzle dispenser. The method of claim 1, And the first sidewall and the second sidewall are provided as an integral body. In a phosphor coating device for applying a phosphor to form a pixel of a large area plasma display panel (PDP), Each of the first sidewalls; A second sidewall opposite the first sidewall; A chamber formed to inject fluorescent solution into the first sidewall and the second sidewall; And at least two air pressurized nozzle dispensers formed under the first sidewall and the second sidewall and including a plurality of nozzles for discharging the fluorescent liquid in the chamber. A fluorescent liquid supply device supplying a fluorescent liquid to the at least two air pressurized nozzle dispensers; An air supply and pressurization device for supplying pressurized air to the at least two air pressurized nozzle dispensers; A level sensor confirming a level of the fluorescence solution in the chamber; And A controller to control operation of the at least two air pressurized nozzle dispensers, the level sensor, the phosphor supply device, and respective components of the air supply and pressurization device Including, In the intermediate position of the outer side of any one of the first side wall or the second side wall of each of the two or more air pressurized nozzle dispensers, a fluorescent liquid supply passage for supplying the fluorescent liquid is provided in the horizontal direction, One or more air supply passages are provided in a horizontal direction on the upper side of the phosphor supply passage along the length direction of each of the air pressurized nozzle dispensers, The phosphor supply passage and the one or more air supply passages are each in fluid communication with the chamber, The at least two air pressurized nozzle dispensers further comprise support members to be fixedly mounted on top of each of the first sidewall and the second sidewall. Fluorescent solution coating device. The method of claim 3, wherein The fluorescent liquid supply device A fluorescent liquid storage tank for storing the fluorescent liquid; A fluorescent liquid supply pipe connected to the fluorescent liquid supply passage and supplied with a fluorescent liquid from the fluorescent liquid storage tank; A fluorescent liquid control valve provided between the fluorescent liquid supply pipe and a side wall on which the fluorescent liquid supply passage is provided, and for controlling the supply of the fluorescent liquid; And Connected to the fluorescent storage tank, the fluorescent liquid pressurizing device for pressurizing the fluorescent liquid Including; The air supply and pressurization device Air pressurization device; A regulator connected to the air pressurizing device and maintaining a pressing force of air pressurized and supplied by the air pressurizing device; A phosphor coating control valve provided between the regulator and a sidewall on which the one or more air supply passages are provided, for controlling the start and end of the phosphor coating; And Pressurized air is supplied and is provided with one or more branch tubes for connecting with the one or more air supply passages Containing Fluorescent solution coating device. The method according to claim 3 or 4, And a phosphor coating control valve is a 3-way valve. The method according to claim 3 or 4, And the first sidewall and the second sidewall are provided as a unitary body. In the air pressurized nozzle dispenser for supplying a fluorescent liquid to form pixels of a large area plasma display panel (PDP), First sidewalls; A second sidewall opposite the first sidewall; A chamber formed to inject fluorescent solution into the first sidewall and the second sidewall; The air manifold is formed in the upper portion of the first side wall and the second side wall in a recessed shape, a plurality of grooves through which the air can be supplied into the chamber, the upper portion is provided with a cover ); And A plurality of nozzles formed under the first sidewall and the second sidewall, and for discharging a fluorescent liquid in the chamber; Including, In the intermediate position of the outer side of any one of the first side wall or the second side wall is provided with a fluorescent liquid supply passage for supplying the fluorescent liquid in a horizontal direction, in fluid communication with the chamber, One or more air supply passages are provided in a horizontal direction on the upper side of the fluorescent liquid supply passage along the length direction of the nozzle dispenser, and are in fluid communication with the air manifold. Air pressurized nozzle dispenser. The method of claim 7, wherein And the first sidewall and the second sidewall are provided as an integral body. In the air pressurized nozzle dispenser for supplying a fluorescent liquid to form pixels of a large area plasma display panel (PDP), Two or more air pressurized nozzle dispensers are provided, and each air pressurized nozzle dispenser First sidewalls; A second sidewall opposite the first sidewall; A chamber formed to inject fluorescent solution into the first sidewall and the second sidewall; The air manifold is formed in the upper portion of the first side wall and the second side wall in a recessed shape, a plurality of grooves through which the air can be supplied into the chamber, the upper portion is provided with a cover ); And A plurality of nozzles formed under the first sidewall and the second sidewall, and for discharging a fluorescent liquid in the chamber; Including, In the intermediate position of the outer side of any one of the first side wall or the second side wall is provided with a fluorescent liquid supply passage for supplying the fluorescent liquid in a horizontal direction, in fluid communication with the chamber, One or more air supply passages are provided in a horizontal direction on the upper side of the phosphor supply passage along the length direction of each nozzle dispenser, and are in fluid communication with the air manifold, The at least two air pressurized nozzle dispensers further comprise support members to be fixedly mounted on top of each of the first sidewall and the second sidewall. Air pressurized nozzle dispenser. The method of claim 9, And the first sidewall and the second sidewall are provided as an integral body. The method according to any one of claims 7 to 10, Air pressurized nozzle dispenser, the support member performs the function of the cover. In a phosphor coating device for applying a phosphor to form a pixel of a large area plasma display panel (PDP), First sidewalls; A second sidewall opposite the first sidewall; A chamber formed to inject fluorescent solution into the first sidewall and the second sidewall; The air manifold is formed in the upper portion of the first side wall and the second side wall in a recessed shape, a plurality of grooves through which the air can be supplied into the chamber, the upper portion is provided with a cover ); An air pressurized nozzle dispenser formed under the first sidewall and the second sidewall and including a plurality of nozzles for discharging the fluorescent liquid in the chamber; A fluorescent liquid supply device supplying a fluorescent liquid to the air pressurized nozzle dispenser; An air supply and pressurization device for supplying pressurized air to the air pressurized nozzle dispenser; A level sensor confirming a level of the fluorescence solution in the chamber; And A controller for controlling the operation of the air pressurized nozzle dispenser, the level sensor, the phosphor supply device, and respective components of the air supply and pressurization device Including, In the intermediate position of the outer side of any one of the first side wall or the second side wall is provided with a fluorescent liquid supply passage for supplying the fluorescent liquid in a horizontal direction, in fluid communication with the chamber, One or more air supply passages are provided in a horizontal direction on the upper side of the fluorescent liquid supply passage along the length direction of the nozzle dispenser, and are in fluid communication with the air manifold. Fluorescent solution coating device. The method of claim 12, And the first sidewall and the second sidewall are provided as a unitary body. In a phosphor coating device for applying a phosphor to form a pixel of a large area plasma display panel (PDP), Each of the first sidewalls; A second sidewall opposite the first sidewall; A chamber formed to inject fluorescent solution into the first sidewall and the second sidewall; The air manifold is formed in the upper portion of the first side wall and the second side wall in a recessed shape, a plurality of grooves through which the air can be supplied into the chamber, the upper portion is provided with a cover ); And at least two air pressurized nozzle dispensers formed under the first sidewall and the second sidewall and including a plurality of nozzles for discharging the fluorescent liquid in the chamber. A fluorescent liquid supply device supplying a fluorescent liquid to the at least two air pressurized nozzle dispensers; An air supply and pressurization device for supplying pressurized air to the at least two air pressurized nozzle dispensers; A level sensor confirming a level of the fluorescence solution in the chamber; And A controller to control operation of the at least two air pressurized nozzle dispensers, the level sensor, the phosphor supply device, and respective components of the air supply and pressurization device Including, In the intermediate position of the outer side of any one of the first side wall or the second side wall is provided with a fluorescent liquid supply passage for supplying the fluorescent liquid in a horizontal direction, in fluid communication with the chamber, One or more air supply passages are provided in a horizontal direction on the upper side of the phosphor supply passage along the length direction of each nozzle dispenser, and are in fluid communication with the air manifold, The at least two air pressurized nozzle dispensers further comprise support members to be fixedly mounted on top of each of the first sidewall and the second sidewall. Fluorescent solution coating device. The method of claim 14, And the first sidewall and the second sidewall are provided as a unitary body. The method according to any one of claims 12 to 14, The fluorescent liquid supply device A fluorescent liquid storage tank for storing the fluorescent liquid; A fluorescent liquid supply pipe connected to the fluorescent liquid supply passage and supplied with a fluorescent liquid from the fluorescent liquid storage tank; A fluorescent liquid control valve provided between the fluorescent liquid supply pipe and a side wall on which the fluorescent liquid supply passage is provided, for controlling the supply of the fluorescent liquid; And Connected to the fluorescent storage tank, the fluorescent liquid pressurizing device for pressurizing the fluorescent liquid Including; The air supply and pressurization device Air pressurization device; A regulator connected to the air pressurizing device and maintaining a pressing force of air pressurized and supplied by the air pressurizing device; A phosphor coating control valve provided between the regulator and a sidewall on which the one or more air supply passages are provided, for controlling the start and end of the phosphor coating; And Pressurized air is supplied and is provided with one or more branch tubes for connecting with the one or more air supply passages Containing Fluorescent solution coating device. The method of claim 16, And a phosphor coating control valve is a 3-way valve. The method according to any one of claims 12 to 14, Air pressurized nozzle dispenser, the support member performs the function of the cover.

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