JP2003086099A - Method of manufacturing image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of manufacturing for an image display device capable of quickly conducting degassing treatment of a front plate or a rear plate constituting a container for housing a display member, and simply conducting the relative positioning of both plates. SOLUTION: This method of manufacturing the image forming device has a process holding the front plate and the rear plate in a facing state, and deciding and fixing the relative position of both plates in the surface direction with a jig capable of fixing the relative position of both plates in the surface direction; a process moving at least one of both electrodes in the direction other than the surface direction, widening the distance between both plates, and heating; and a process forming the container by piling both plates through an adhesion member.

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 an image display device.

[0002]

2. Description of the Related Art In a conventional method for manufacturing an image display device, in particular, a closed container (envelope) containing a display member.
For the formation of, the front plate on the display surface side and the rear plate on the opposite side are pre-heated in a reduced pressure atmosphere for sufficient degassing treatment, and then both plates are once returned to the atmosphere. The front plate and the rear plate are overlapped with each other via the sealing member, and after sufficient relative alignment of both plates, both plates are fixed and heated to form a container, and then the exhaust gas attached to the container This is done by sealing the exhaust pipe after the process of exhausting the inside of the container through the pipe.

According to the above-described method for forming a closed container, it takes a lot of time to exhaust the inside of the container through the exhaust pipe after returning both plates to the atmosphere once after degassing the both plates.

Further, in Japanese Unexamined Patent Publication No. 11-135018, the formation of a closed container (envelope) containing a display member is described as follows.
After placing the front plate on the display side and the rear plate on the opposite side in a vacuum atmosphere, degassing the both plates by heating them, and then performing a relative vacuum alignment of both plates. It is disclosed that the heating is performed in the inside by heating both plates.

[0005]

The present invention provides, among other things,
Provided is a method for manufacturing an image display device, which constitutes a container for enclosing a display member, enables a quick degassing process of a front plate or a rear plate, and can easily perform subsequent relative alignment of both plates. The purpose is to

[0006]

SUMMARY OF THE INVENTION The present invention is a method for manufacturing an image display device including a container including a display member and including a front plate and a rear plate, wherein the front plate and the rear plate are faced to each other. Held in a state, using a jig capable of fixing the relative position in the surface direction of the both plates, the step of determining the relative position in the surface direction of the both plates and fixing it, of the fixed both plates Of at least one of the plates by moving in a direction other than the plane direction to widen the distance between the plates, and heating at least one of the plates, and after the heating
And a step of forming the container by stacking the both plates with a sealing member interposed therebetween, the manufacturing method of the image display device.

Further, the present invention is a method of manufacturing an image display device including a container including a display member and including a front plate and a rear plate, wherein the front plate and the rear plate are held in a state of facing each other. In a state in which the relative position in the surface direction of the both plates of a pair of jigs that can be determined and the pair of jigs is fixed at the position, each of the both plates in each of the pair of jigs is in the surface direction of the both plates. In the step of holding after determining the relative position in, the step of heating at least one of the two plates by releasing the fixed state of the pair of jigs, after the step of heating, the pair of jigs again A step of forming the container by stacking the both plates with a sealing member interposed therebetween in a state of being fixed at the determined position.

In any of the above-mentioned manufacturing methods of the present invention, the step of forming the container is performed in a reduced pressure atmosphere, or the step of heating and the step of forming the container are performed under reduced pressure. It is more preferable that the heating is performed in an atmosphere, or that the steps from the heating to the step of forming the container are performed in a reduced pressure atmosphere.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is described in detail below with reference to some preferred embodiments, but the present invention is not limited to these embodiments, and the object of the present invention is achieved. It also includes replacements and design changes of each element within the range.

(First Embodiment) An image display device manufactured in this embodiment has a front plate 1, a rear plate 2, and a front plate 1 and a rear plate 1 as shown in the sectional view of FIG. An image display device is provided with a container configured with a sealing member 8 that maintains an interval with the face plate 2 and forms an airtight space, and a display member (not shown) enclosed in the container.

Here, the sealing member 8 comprises an outer frame 8a for forming the outer periphery of the container, and an adhesive portion 8b for adhering the outer frame 8a to the front plate 1 and the rear plate 2.

The display member is composed of a phosphor and a metal back (anode electrode) arranged on the front plate 1 side, and an electron source arranged on the rear plate 2 side to emit electrons.

Next, a method for manufacturing the above-mentioned image display device will be described.

First, a rear plate 2 on which an electron source is formed and an outer frame 8a and an adhesive 8b are arranged, and a front plate 1 on which a phosphor and a metal back are formed are prepared. still,
The outer frame 8a may be fixedly arranged on the front plate 1 side.

Next, the front plate 1 and the rear plate 2 are fixed to a jig.

A jig used in this embodiment is shown in FIG.

In FIG. 3, 3 and 4 are front plates 1 respectively.
Alternatively, a jig 5 with a sliding hole for temporarily fixing the rear plate 2 is a fixing member for temporarily fixing the front plate 1 or the rear plate 2 to the jig 3, 4 with a sliding hole, and 6 is a shaft 7 vertically It is a fixed pedestal.

In the jig shown in FIG. 3, the front plate 1 and the rear plate 2 are temporarily fixed by fixing members 5, respectively, and jigs 3 and 4 with sliding holes are provided.
The front plate 1 and the rear plate 2 are held face-to-face by passing the shafts 7 supported and fixed to the pedestal 6 through the sliding holes provided at the four corners of the front plate 1 and the rear plate 2. Is a jig capable of fixing the relative position in the surface direction, that is, in the direction substantially parallel to each surface of the front plate 1 and the rear plate 2. Further, the jig shown in FIG. 3 fixes the front plate 1 and the rear plate 2 in the above-mentioned plane direction, but in the direction along the shaft 7, that is, in the case of the present jig, both are substantially perpendicular. The board can be moved. Although four shafts 7 are provided, the present invention is not limited to this, and as described above, the front plate 1 and the rear plate 2 can be fixed in the above-mentioned plane direction, and both plates can be moved in the direction along the shaft 7. If possible, two or three may be used.

The front plate 1 and the rear plate 2 are fixed to the jig shown in FIG. 3 as follows.

As shown in FIG. 4, the front plate 1 is temporarily fixed to the jig 3 with sliding holes by the fixing member 5. Such temporary fixing is performed by adhering the front plate 1 and the fixing member 5 with a low temperature curing inorganic adhesive. The rear plate 2 side may be temporarily fixed to the jig 3 with sliding holes.

Next, the shaft 7 is passed through the sliding holes of the jig 3 with sliding holes and the jig 4 with sliding holes to which the front plate 1 is temporarily fixed. As a result, the relative positions of the jig with sliding hole 3 and the jig with sliding hole 4 in the surface direction are fixed.

Then, the rear plate 2 is opposed to the front plate 1 so that the phosphor and the metal back face the electron source, the relative positions of both plates are aligned, and the rear plate 2 is placed at the determined position. The front plate 1 is temporarily fixed to the jig 4 with sliding holes in the same manner as the front plate 1 is temporarily fixed.

The jig in which the front plate 1 and the rear plate 2 are temporarily fixed as described above is carried into the decompression chamber, and first, the jig 4 with a sliding hole in which the rear plate 2 is temporarily fixed is mounted on the shaft 7. It is moved upward along the distance to greatly widen the distance between the front plate 1 temporarily fixed to the jig 3 with sliding holes and the rear plate 2 temporarily fixed to the jig 4 with sliding holes. The above-mentioned movement of the jig with sliding holes is performed by moving the jig with sliding holes 3 downward, or by moving both the jigs with sliding holes 3 and 4, both the front plate 1 and the rear plate. It does not matter if it is a movement in the direction of widening the distance from 2.

Next, while exhausting the decompression chamber, the front plate 1 and the rear plate 2 are heated at about 360 ° C. to degas both plates. If only one of the front plate 1 and the rear plate 2 is sufficient for the degassing process, only one of the plates is heated.

After the above heating, as shown in FIG. 2, the jig 4 with sliding holes, to which the rear plate 2 is temporarily fixed, is moved downward along the shaft 7 to make the jig 3 with sliding holes temporarily. Approximately 4 with the hot plates 9 and 10 overlaid on the fixed front plate 1.
Heat to 20 ° C. to form an airtight container.

After that, the completed container is cooled and then taken out of the decompression chamber.

A drive driver for displaying an image is mounted on the taken-out container and installed in the housing to complete the image display device.

In the embodiment described above, FIG.
As shown in, each of the front plate and the rear plate can be held in a state of facing each other, and the relative position in the plane direction of the both plates can be fixed, but at least one of the both plates in a direction other than the plane direction. Since a jig that can move one side is used, degassing from both plates by heating can be efficiently performed at sufficiently wide intervals of both plates, and thereafter, both plates can be swiftly returned without being returned to the atmosphere. Can be fixed in a desired relative position and sealed.

Further, it is not necessary to install an expensive and more complicated alignment mechanism for determining and fixing the relative positions of the both plates in the reduced pressure atmosphere, and the container having the both plates as a component is sealed in the reduced pressure atmosphere. Wearing can be done more easily.

(Second Embodiment) The second embodiment of the present invention will be described below.
Embodiments of will be described.

In the manufacturing method of this embodiment, first, the same method as described in the first embodiment is used.
As shown in FIG. 5, a jig 3 with a sliding hole and a jig 4 with a sliding hole
In the state where the relative positions in the surface direction of the front plate 1 and the rear plate 2 temporarily fixed to the pair of jigs are fixed by the shaft 7, the jigs 3 with sliding holes and the jigs 4 with sliding holes 4 Each of the pair of jigs is made to hold the both plates after determining their relative positions in the plane direction.

Next, both the jigs 3 with sliding holes and the jigs 4 with sliding holes for holding the front plate 1 and the rear plate 2 are pulled out from the shaft 7 and released from the fixed state.

Next, the sliding hole jig 3 and the sliding hole jig 4 are carried into the first decompression chamber for degassing, and while exhausting the decompression chamber, the front plate 1 and the rear plate 1 are removed at about 360.degree. The face plate 2 is heated and the both plates are degassed.

After the heating, the front plate 1 and the rear plate 2 are moved from the first decompression chamber to the second decompression chamber for sealing the container.
Jigs 3 with sliding holes and jigs 4 with sliding holes
Bring in. Here, the second decompression chamber is provided with a shaft 7 similar to that used in FIG. 5, which has been used previously, and the jig with sliding hole 3 and the jig with sliding hole 4 are passed through the shaft 7. Again, the previously determined relative position in the surface direction is fixed, and as shown in FIG. 2, the rear face plate 2 temporarily fixed to the sliding hole-equipped jig 4 is temporarily fixed to the sliding hole-equipped jig 3. The hot plates 9 and 10 are overlaid on the fixed front plate 1.
And heated to about 420 ° C. to form an airtight container.

After that, the completed container is cooled and then taken out from the decompression chamber.

A drive driver for displaying an image is mounted on the taken out container and is installed in the housing to complete the image display device.

In the second embodiment described above, both the sliding hole-equipped jig 3 and the sliding hole-equipped jig 4 are pulled out from the shaft 7 and carried into the first decompression chamber. 3 and at least one of the jigs 4 with sliding holes, the other one is carried into the first decompression chamber together with the shaft 7, and the one jig with sliding holes is set on the shaft in the second decompression chamber. May be.

Also in this embodiment described above, the first
In the same manner as in the embodiment described above, degassing from both plates by heating can be efficiently performed at sufficiently wide intervals of both plates, and thereafter, both plates can be quickly desired without returning to the atmosphere. It is possible to fix it at a relative position and seal it.

Further, it is not necessary to install an expensive and more complicated alignment mechanism for determining and fixing the relative positions of both plates in the reduced pressure atmosphere, and the container having both plates as a constituent member is sealed in the reduced pressure atmosphere. Wearing can be done more easily.

Further, since at least one of the pair of jigs can be degassed after being released from the fixed state, if the degassing conditions are different between the front plate and the rear plate, It is possible to carry the degassing treatment under different conditions by loading the face plate and the rear face plate into different decompression chambers.

[0041]

According to the manufacturing method of the present invention,
The front plate or the rear plate constituting the container for enclosing the display member can be quickly degassed, and the subsequent relative positioning of both plates can be easily performed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an image display device manufactured by a manufacturing method of the present invention.

FIG. 2 is a cross-sectional view illustrating a container sealing method using a jig that characterizes the present invention.

FIG. 3 is a diagram for explaining a configuration of a jig characterizing the present invention.

FIG. 4 is a diagram for explaining a method of temporarily fixing the front plate or the rear plate to the jig characterizing the present invention.

FIG. 5 is a diagram for explaining a method of aligning a front plate and a rear plate using a jig that characterizes the present invention.

[Explanation of symbols]

1 Front plate 2 Rear plate Jigs with sliding holes 5 fixing members 6 pedestals 7 shaft 8 Sealing member 8a adhesive 8b outer frame 9,10 hot plate

Claims (5)

[Claims] 1. A method of manufacturing an image display device comprising a container including a display member, the container including a front plate and a rear plate, wherein the front plate and the rear plate are held in a state of facing each other, and Using a jig capable of fixing the relative position in the plane direction of the plate, determining the relative position in the plane direction of the both plates and fixing it, at least one of the fixed both plates other than the plane direction And a step of heating at least one of the two plates by moving in a direction to widen the space between the both plates, and after the heating step, the both plates are stacked via a sealing member to form the container. An image display device manufacturing method, comprising: 2. A method of manufacturing an image display device including a container including a display member, the container including a front plate and a rear plate, wherein the front plate and the rear plate can be held in a state of facing each other. In a state where the relative position in the plane direction of the both plates of the jig is determined and the pair of jigs is fixed at the position, the relative position in the plane direction of each of the plates is set to each of the pair of jigs. After the step of determining and holding, the step of releasing the fixed state of the pair of jigs to heat at least one of the both plates, and the step of heating, the pair of jigs are again determined. A step of forming the container by stacking the both plates with a sealing member interposed therebetween in a state of being fixed at a position. 3. The method of manufacturing an image display device according to claim 1, wherein the step of forming the container is performed in a reduced pressure atmosphere. 4. The method for manufacturing an image display device according to claim 1, wherein the heating step and the container forming step are performed in a reduced pressure atmosphere. 5. The method for manufacturing an image display device according to claim 1, wherein the heating step and the step of forming the container are performed in a reduced pressure atmosphere.