JP3614654B2 - Color plasma display phosphor insertion device and method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a color plasma display which is placed on a hot stage moved in a uniaxial direction in the front-rear direction, and a phosphor is pressure-inserted through a rubber sheet into a rear panel of the color plasma display in which the phosphor is temporarily inserted. The present invention relates to a phosphor insertion device and an insertion method.
[0002]
[Prior art]
FIG. 6 is a schematic partial side view of a conventional general color plasma display phosphor insertion apparatus.
[0003]
In this conventional color plasma display phosphor insertion device, the rear panel 9 of the color plasma display in which the phosphor Q is temporarily inserted is placed on a hot stage 8 heated to a predetermined temperature, and the rear panel 9 is equal to or higher than the rear panel 9. A silicon rubber sheet (hereinafter simply referred to as a rubber sheet) 1 of a size is placed, and pressure is applied by a roller 4 from above. In this state, the hot stage 8 is moved in the front-rear uniaxial direction P so that the total rear panel length is below the roller 4 The phosphor Q is inserted into the rear panel 9 by passing through.
[0004]
As is well known, each of the cells formed on the surface of the rear panel 9 by transferring the phosphors Q of R, G, and B colors onto the surface of the rear panel 9 while being coated and dried on the transfer film. Then, it is temporarily inserted into each cell and then inserted into each cell by a phosphor insertion device.
[0005]
[Problems to be solved by the invention]
However, in the conventional color plasma display phosphor insertion device described above, it is necessary to place the rubber sheet 1 on the rear panel 9 every time as a preparation for the main insertion of the phosphor Q into the rear panel 9, and this work takes time and effort. There was a problem.
[0006]
Furthermore, when the rubber sheet 1 is placed on the rear panel 9, if there are wrinkles or uneven tension (tension unevenness), the thickness of the phosphor inserted across the entire surface of the rear panel 9 becomes non-uniform, which is the most serious luminance unevenness of the product. There was a problem that quality defects occurred.
[0007]
For this reason, it is important to place the rubber sheet 1 without any wrinkles and to make the tension (tension) uniform, but there is a problem that this pre-preparation takes a lot of time and the working time becomes long.
[0008]
In addition, it is difficult to quantitatively manage the tension of the rubber sheet 1, the quality is not stable, and the yield is very poor.
[0009]
The present invention eliminates the above-mentioned conventional problems, can uniformly set the tension of the rubber sheet for pressurizing and inserting the phosphor into the rear panel, and can realize quantitative management of the tension. An object of the present invention is to provide a color plasma display phosphor insertion device and method that can improve uniformity, improve product yield, and reduce working time.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the color plasma display phosphor insertion device according to the first aspect of the present invention heats the rear panel of the color plasma display on which the phosphor is temporarily inserted, and moves relative to the rubber sheet in the front-rear uniaxial direction. A hot stage, a ring-shaped rubber sheet for pressurizing and inserting a phosphor into the rear panel, a rubber sheet is mounted, the rubber sheet is rotated and guided in the relative movement direction of the hot stage, and the rubber sheet And a roller group composed of at least three rollers arranged in a substantially inverted triangular shape for pressurizing and inserting the phosphor into the rear panel.
[0011]
In addition, it is preferable to provide a vertical movement mechanism that supports the roller group so as to be movable up and down and pressurizes the rear panel on the hot stage.
[0012]
According to a second aspect of the present invention, there is provided an apparatus for inserting a color plasma display phosphor, a hot stage which is mounted and heated on a rear panel of the color plasma display in which the phosphor is temporarily inserted, and is moved relative to a rubber sheet in the front-rear uniaxial direction, and the rear panel. A rubber sheet for pressurizing and inserting the phosphor, a supply roller and a take-up roller which are attached to the outer peripheral surface so that both ends of the rubber sheet are detachable, and the rubber sheet is rotated and guided in the relative movement direction of the hot stage. And a pressure roller for pressure-inserting the phosphor into the rear panel via a rubber sheet.
[0013]
Also, it is preferable that the motor is connected to the supply roller and the take-up roller to which the rubber sheet is attached, and the tension of the rubber sheet can be arbitrarily set when the phosphor is inserted into the rear panel by rotational driving of these motors. It is.
[0014]
Furthermore, the degree of parallelism with each roller can be set arbitrarily, and the auxiliary roller that can be set uniformly by reducing the uneven tension of the rubber sheet in the longitudinal direction of the rubber sheet is pressed from the outside to an appropriate location on the rubber sheet. It is preferable to have a configuration in which the two are in contact with each other.
[0015]
Further, it is preferable to provide a vertical movement mechanism that supports each roller so as to be movable up and down and pressurizes the rear panel on the hot stage.
[0016]
According to the color plasma display phosphor inserting device of the first invention, a ring-shaped rubber sheet is mounted on a roller group consisting of at least three rollers arranged in a substantially inverted triangular shape. Since the phosphor is pressed and inserted into the rear panel by pressing the rear panel of the color plasma display that has been temporarily inserted, there is no need to prepare a rubber sheet on the rear panel. The tension can be made uniform, and a phosphor sheet can be pressure-inserted into the rear panel with a rubber sheet pressed by a roller, so that the thickness of the phosphor can be made uniform and the product yield can be improved. In addition, the work time can be shortened because the work of placing the rubber sheet on the rear panel is not required.
[0017]
If the roller group is supported so that it can move up and down and the rear panel on the hot stage is equipped with a vertical movement mechanism that can pressurize, the roller group can be lifted by this vertical movement mechanism when the rear panel is set on the hot stage. Therefore, it is easy to set the rear panel on the hot stage.
[0018]
According to the color plasma display phosphor inserting device of the second aspect of the invention, the rubber sheet can be detachably attached to the supply roller and the take-up roller, so that the rubber sheet can be easily replaced. Furthermore, since it is not necessary to remove each roller from the apparatus main body, it is easy to maintain the accuracy of the mechanism.
[0019]
Moreover, since the phosphor can be pressed and inserted into the rear panel via the rubber sheet with the pressure roller, there is no need to prepare in advance for placing the rubber sheet on the rear panel. With this rubber sheet, the phosphor can be inserted into the rear panel under pressure, the thickness of the phosphor can be made uniform, and the product yield can be improved. In addition, the work time can be shortened because the work of placing the rubber sheet on the rear panel is not required.
Further, by managing the motor connected to the supply roller and the take-up roller to which the rubber sheet is attached, it is possible to quantitatively manage the tension of the rubber sheet when the phosphor is inserted. Furthermore, the reproducibility of tension before and after replacement of the rubber sheet can be improved.
[0020]
Further, the bias of the rubber sheet in the longitudinal direction of the rubber sheet can be alleviated by an auxiliary roller that is in contact with the appropriate position of the rubber sheet from the outside.
[0021]
In addition, when equipped with a vertical movement mechanism that supports each roller so that it can move up and down and pressurizes the rear panel on the hot stage, when the rear panel is set on the hot stage, each roller is lifted by this vertical movement mechanism. It is easy to set the rear panel on the hot stage.
[0022]
According to a third aspect of the present invention, there is provided a color plasma display phosphor insertion method in which a rear panel of a color plasma display into which a phosphor has been temporarily inserted is moved relative to a rubber sheet in a uniaxial direction in a heated state, and a rubber is applied with tension. The phosphor is pressed and inserted into the rear panel by locally pressing the sheet while rotating the seat with respect to the rear panel.
[0023]
According to the third invention, the same operation as the first and second inventions can be performed.
[0024]
In addition, the said rubber sheet contains not only the thing made from a silicon rubber but the thing made from other types of rubber, the synthetic resin which has rubber elasticity, etc.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of a color plasma display phosphor inserting device according to the present invention will be described with reference to the drawings.
[0026]
FIG. 1 is a partial schematic side view of the color plasma display phosphor insertion device of the first embodiment. In addition, the same code | symbol is attached | subjected and demonstrated about the member similar to the member in the above-mentioned prior art example.
[0027]
As shown in FIG. 1, the color plasma display phosphor insertion device of the first embodiment comprises three rollers 4a, 4b, 4c arranged in a substantially inverted triangular shape with the rubber sheet 1 in a ring shape. The pressure roller 4c on the lower side is attached to a rear panel (hereinafter referred to as a workpiece) 9 of a color plasma display on a hot stage 8 which is installed so as to hang around the roller group 4 and heated to a predetermined temperature. It is configured to press through the sheet 1. A pack-up roller 4d is in contact with the pressure roller 4c from above.
[0028]
In this state, the hot stage 8 is sent at a predetermined speed in the front-rear uniaxial direction P. At this time, since the rubber sheet 1 is sandwiched between the pressure roller 4 c and the work 9, the rubber sheet 1 on the left side (hereinafter referred to as the supply side) in the drawing of the roller group 4 is the pressure point as the hot stage 8 advances. After entering W, it is discharged to the right side (hereinafter referred to as the winding side) in the figure, and returns to the supply side again through the two rollers 4a and 4b arranged at the top.
[0029]
Accordingly, it is not necessary to prepare in advance to place the rubber sheet 1 on the workpiece 9, and the phosphor sheet is placed on the workpiece 9 with the rubber sheet 1 by applying pressure from the pressure roller 4c without the rubber sheet 1 being flattened and with a uniform tension. Q can be pressure-inserted, the phosphor insertion thickness can be made uniform, and the product yield can be improved. In addition, since the work of placing the rubber sheet 1 on the work 9 need not be performed, the work time can be shortened.
[0030]
Although not shown in FIG. 1, the pressure roller of the roller group 4 is provided with a vertical movement mechanism that supports the roller group 4 so as to be movable up and down and can press the work 9 on the hot stage 8. 4c can be pressurized when the phosphor Q is inserted, so that the pressure can be favorably inserted into the workpiece 9 of the phosphor Q. When the workpiece 9 is set on the hot stage 8, this vertical movement mechanism is used. Since the roller group 4 can be lifted, there is an advantage that the work 9 can be easily set on the hot stage 8.
[0031]
FIG. 2 is a perspective view of the color plasma display phosphor insertion device of the second embodiment, FIG. 3 is a partial side view of the color plasma display phosphor insertion device of the second embodiment, and FIG. It is a fragmentary perspective view which shows the state which attached.
[0032]
In the color plasma display phosphor inserting apparatus of the second embodiment, as shown in FIGS. 2 and 3, the rubber sheet 1 is formed in a wide band shape, and attachment members 2a and 2b are provided at both ends of the rubber sheet 1, and a supply roller The rubber sheet 1 is detachably attached to the 4e and the take-up roller 4f by the attachment members 2a and 2b.
[0033]
Then, as shown in FIGS. 5A and 5B, the phosphor Q is inserted into the workpiece 9 through the rubber sheet 1 by a pressure roller 4g having a rubber layer 4n on the outer periphery of the core 4m. (This is inserted).
[0034]
Further, torque motors 5a and 5b are connected to the supply roller 4e and the take-up roller 4f, and the tension of the rubber sheet 1 at the time of insertion can be arbitrarily set by rotational driving of the torque motors 5a and 5b. . That is, in FIG. 3, a clockwise rotational torque is applied to the supply roller 4 e by the torque motor 5 a to apply a back tension to the rubber sheet 1 on the supply side, and the winding roller 4 f is counterclockwise by the torque motor 5 b. Thus, the rubber sheet 1 discharged from the pressure point W by the pressure roller 4g is wound with a predetermined winding tension. The back tension and winding tension can be arbitrarily set and managed quantitatively by the applied voltages of the torque motors 5a and 5b.
[0035]
Further, auxiliary rollers 4h and 4i for arbitrarily setting the parallelism with respect to the rollers 4e, 4f and 4g are provided so as to come into contact with appropriate portions of the rubber sheet 1 from outside. Further, a pack-up roller 4j is in contact with the pressure roller 4g from above. In addition, a pressurizing cylinder 3 that supports each roller so as to be movable up and down and pressurizes the work 9 on the hot stage 8 is disposed above each roller.
[0036]
In FIG. 2, reference numeral 6 denotes a servo motor for moving the hot stage 8 in the front-rear uniaxial direction P, and 7 denotes an operation panel.
[0037]
According to the color plasma display phosphor insertion device of the second embodiment, when replacing the consumable rubber sheet 1 with a new one, it is possible to replace all the rollers without removing them from the device main body, and it is necessary to remove each roller. Therefore, the mechanism accuracy can be easily maintained. As a result, maintenance time can be greatly reduced.
[0038]
Further, by providing the auxiliary rollers 4h and 4i that can arbitrarily set the parallelism to the rollers 4e, 4f, and 4g, the tension in the roller longitudinal direction of the rubber sheet 1 when the phosphor is inserted can be set uniformly.
[0039]
Furthermore, since the pressure cylinder 3 is disposed, the pressure roller 4g can be pressurized by the pressure cylinder 3 when the pressure roller 4g is inserted into the workpiece 9 by pressure. The pressure insertion into the workpiece 9 can be performed satisfactorily. Further, when the workpiece 9 is set on the hot stage 8, each of the rollers such as the pressure roller 4g can be lifted by this vertical movement mechanism, so that there is an advantage that the workpiece 9 can be easily set on the hot stage 8.
[0040]
【The invention's effect】
As described above, according to the present invention, it is not necessary to prepare in advance as in the conventional example, the working time can be shortened, and the tension of the rubber sheet in the longitudinal direction of the roller when the phosphor is pressed is inserted. The condition can be set uniformly, and the tension of the rubber sheet can be managed quantitatively, so that the uniformity of the phosphor insertion thickness can be improved and the yield of products can be improved.
[0041]
In particular, according to the second invention, since the rubber sheet is detachably attached to the supply roller and the take-up roller by the attachment member, it is possible to replace the consumable rubber sheet without removing the roller. Work can be facilitated, work time can be greatly shortened, and productivity can be improved.
[Brief description of the drawings]
FIG. 1 is a partial schematic side view of a color plasma display phosphor insertion device according to a first embodiment of the present invention.
FIG. 2 is a perspective view of a color plasma display phosphor insertion device according to a second embodiment.
FIG. 3 is a partial side view of the color plasma display phosphor insertion device of the second embodiment.
FIG. 4 is a partial perspective view showing a state in which a rubber sheet is attached to a supply roller by an attachment member in the color plasma display phosphor inserting device of the second embodiment.
5A is an explanatory view showing a state where a phosphor is temporarily inserted, and FIG. 5B is an explanatory view showing a state where the phosphor is fully inserted.
FIG. 6 is a schematic partial side view of a conventional color plasma display phosphor insertion device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rubber sheet 3 Pressure cylinder 4 Roller group 4a, 4b Roller 4c Pressure roller 4e Supply roller 4f Winding roller 4g Pressure roller 4h, 4i Auxiliary roller 5a, 5b Torque motor 8 Hot stage 9 Rear panel

Claims (8)

A color plasma display rear panel on which a phosphor is temporarily inserted is mounted and heated, and a hot stage that is moved relative to a rubber sheet in the front-rear uniaxial direction, and a ring-like shape for pressurizing and inserting the phosphor into the rear panel A rubber sheet and a rubber sheet are mounted, and the rubber sheet is rotated and guided in the direction of relative movement of the hot stage, and arranged in a substantially inverted triangular shape for pressure-inserting the phosphor into the rear panel via the rubber sheet. An apparatus for inserting a color plasma display phosphor, comprising: a roller group including at least three rollers. 2. The color plasma display phosphor inserting device according to claim 1, further comprising a vertically moving mechanism capable of supporting the roller group so as to be vertically movable and pressurizing the rear panel on the hot stage. A hot stage on which a rear panel of a color plasma display on which a phosphor is temporarily inserted is mounted and heated, and is moved relative to a rubber sheet in the front-rear uniaxial direction, and a rubber sheet for pressing and inserting the phosphor into the rear panel; The rubber sheet is rotationally guided in the direction of relative movement of the hot stage, and the phosphor is pressed against the rear panel via the rubber sheet. An apparatus for inserting a color plasma display phosphor, comprising a pressure roller for insertion. A motor is connected to the supply roller and the take-up roller to which the rubber sheet is attached, and the tension of the rubber sheet can be arbitrarily set when the phosphor is inserted into the rear panel by the rotational drive of these motors. The apparatus for inserting a color plasma display phosphor according to claim 3. The degree of parallelism with each roller can be set arbitrarily, and an auxiliary roller that can be set uniformly by relaxing the unevenness of the rubber sheet in the longitudinal direction of the rubber sheet is brought into contact with an appropriate portion of the rubber sheet in a pressed state from the outside. The apparatus for inserting a color plasma display phosphor according to claim 4, wherein the phosphor is disposed as described above. 6. The color plasma display phosphor according to claim 3, further comprising a vertically moving mechanism capable of supporting each roller so as to be vertically movable and pressurizing a rear panel on the hot stage. apparatus. The rear panel of the color plasma display on which the phosphor is temporarily inserted is moved relative to the rubber sheet in a uniaxial direction under heating, and the tensioned rubber sheet is locally pressed while rotating against the rear panel. A method of inserting a color plasma display phosphor, wherein the phosphor is pressure-inserted into a rear panel. The method for inserting a color plasma display phosphor according to claim 7, wherein the tension of the rubber sheet can be arbitrarily set.

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