KR100871039B1 - Clip for sealing display panel - Google Patents

Abstract

It is a display panel sealing attachment clip which has a pair of fitting support part 5 which fits a board | substrate and a vent pipe, and pressurizing member 2 which presses a pair of said fitting support part in the direction which adjoins, and surface pressing member 3, The face pressing member has a cutout that surrounds the cylindrical portion of the vent pipe from three sides, and after the temporary fixing of the vent pipe, even if the distance between the pair of fitting supports of the pressure member is changed, Provided is a clip (1) installed to change the posture to press.

By using the clip of the said structure, even if the distance between a pair of fitting support parts of a press member changes after the temporary fixing of a vent pipe, the flange part of a vent pipe can be pressed to a surface, and the inclination and crack of a vent pipe can be prevented. .

Clip, vent, flange, face pressing member, fitting support

Description

Clip for sealing display panel {CLIP FOR SEALING DISPLAY PANEL}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clip for attaching a display panel seal, and more particularly, in manufacturing a display panel such as a plasma display panel (PDP), when sealing the front side substrate and the back side substrate, A display panel sealing attachment clip for temporarily fixing a front side substrate and a back side substrate together with a vent pipe.

Background Art Conventionally, for example, in a display panel such as a PDP, the front side substrate and the back side substrate are disposed to face each other, and the surrounding space is sealed to form a discharge space therein.

When manufacturing such a display panel, the ventilation hole which communicates inside and outside of a panel is normally provided in the back side board | substrate, and the ventilation hole is covered at the time of the sealing process which heat-seals and attaches a front side board | substrate and a back side board | substrate. The glass vents (also called exhaust pipes or chip pipes) are bonded together. Through this vent pipe, the impurity gas is removed from the inside of the panel to fill the discharge gas inside the panel, and then the vent pipe is blown to prevent the vent passage from being vented to seal the discharge space.

In this sealing adhesion process, a sealing adhesion material is arrange | positioned between a front side board | substrate and a back side board | substrate, and the adhesive material for vent pipes is arrange | positioned in the vicinity of a vent pipe, and a front panel and a back side board | substrate are carried out together with a display panel. It was made to temporarily fix by inserting into a sealing attachment clip, to carry it into the heating furnace in that state, to heat in a predetermined | prescribed heating process, to seal-attach both board | substrates, and to adhere the vent pipe.

As the display panel sealing attachment clip to be used in this sealing attachment step, a plate-like spring material (for example, Inconel) is generally bent in a substantially triangular shape, and a cutout portion is provided so that a vent pipe is introduced into the opening portion. See Document 1).

Patent Document: Japanese Patent Application Laid-Open No. 2001-307635

However, when the display panel sealing attachment clip as described in patent document 1 is used, the front-end | tip part of the display panel sealing attachment clip comes into line contact with the flange part provided in the vent pipe. For this reason, when the distance clamped by the display panel sealing attachment clip is changed by softening of the sealing adhesive between the two substrates or softening of the adhesive material of the vent pipe during the heating process in the sealing attaching process, uniform pressing is performed through the heating process. It could not be obtained, and the inclination and positional shift of the vent pipe could be caused.

In this case, when the distal end of the display panel sealing attaching clip and the vent pipe are contacted with the display panel sealing attaching clip and the tip end portion of the display panel sealing attaching clip is damaged, the vent pipe may be damaged, causing problems such as bending of the vent pipe. In addition, these have hindered the airtight reliability in the vicinity of the vent pipe, leading to deterioration in display quality, manufacturing stability, and the like of the display panel.

SUMMARY OF THE INVENTION The present invention has been made in view of such a situation, and a face pressing member which can be changed in posture can be uniformly pressed even when the distance fitted to the distal end of the clip for attaching the display panel is changed during the heating process in the sealing attaching step. It is provided in the front-end | tip of a display panel sealing attachment clip.

According to the present invention, a vent pipe formed of a cylindrical portion and a flange portion formed at one end of the cylindrical portion is provided so as to face a pair of substrates having a vent hole communicating with the inside and outside of the panel, and having a sealing adhesive disposed therebetween. It is a display panel sealing attachment clip for temporarily placing both substrates and temporarily fixing the air vents to the substrate when placed facing the hole and sealingly attaching the periphery of the substrate, and having a pair of fitting supports for fitting both substrates and the vent pipes together. It consists of a press member which presses a pair of fitting support part in the direction which adjoins, and the surface press member which presses a vent pipe to a surface, and the surface press member has the notch which encloses the cylindrical part of the vent pipe from three sides, After temporary fixing, even if the distance between the pair of fitting supports of the pressing member is changed, It is a clip for display panel sealing attachment provided in one fitting support part of a pressing member so that a posture can be changed.

According to the present invention, since the flange part of the vent pipe is pressed against the surface by the surface pressing member provided on the fitting support even when the distance fitted to the fitting support is changed by softening of the sealing adhesive during the heating process in the sealing attaching step, The vent pipe can be uniformly pressed at all times, and the inclination and positional shift of the vent pipe can be prevented, and the scratches on the vent pipe can be prevented. Thereby, the airtight reliability in the vicinity of the ventilation pipe can be improved, and the defect which arises in the vicinity can be prevented, and the display panel with a favorable display quality can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS Explanatory drawing which shows 1st Embodiment of the display panel sealing attachment clip of this invention.

2 is an explanatory diagram showing a configuration of a surface pressing member according to the first embodiment.

It is explanatory drawing which shows the state which temporarily fixed the vent pipe with the clip for attaching display panel sealing.

It is explanatory drawing which shows 2nd Embodiment of the display panel sealing attachment clip of this invention.

It is explanatory drawing which shows the state before the board | substrate sealing adhesion of the clip for display panel sealing attachment.

FIG. 6 is an explanatory diagram showing a state of the display panel sealing attachment clip during and after the substrate sealing is attached. FIG.

[Description of the code]

1: Clip for attaching the display panel seal

2, 12: spring pressing member

2a: upper holding part

2b: lower holding part

3: face pressing member

3a: cutout

3b: recess for preventing misalignment

4: screw

5: fitting support

11: front side substrate

12a, 12b: fitting support

14: opening and closing operation unit

15: rotating part for connection

21: back side substrate

31: vent pipe

31a: cylindrical part of the vent pipe

31b: flange portion of the vent pipe

32: adhesive member

33: adhesive auxiliary member

34: sealing material

35 vent hole

The display panel sealing attachment clip of this invention opposes a pair of board | substrate which has the ventilation hole which communicates inside and outside of a panel, and arrange | positioned the sealing adhesive material, and consists of a cylinder part and the flange part formed in the one end part of the cylinder part, Is used when the flange portion is faced to the vent hole, and both substrates are temporarily fixed when sealing the periphery of the substrate, while the vent pipe is temporarily fixed to the substrate. Therefore, if it is such a use, the clip for sealing display panel of this invention can be applied also to any panel.

In the present invention, the pressing member may have any pair of fitting supports for fitting both the substrate and the vent pipe, and may be applied as long as the pressing member can press the pair of fitting supports in a direction to approach.

The pressurizing member is applicable to, for example, a plate-shaped spring member made of Inconel, which is bent in a substantially triangular shape to form a clip. Alternatively, the pressing member may be constituted by a pair of fitting support pieces each having a pair of fitting supports for fitting both substrates and the vent pipe at the distal end, an opening and closing operation part at the rear end, and a connecting rotary part approximately in the middle. Specifically, you may apply what comprised the clip of scissors shape by the pair of fitting support piece which consists of SUS board materials, for example, and the coil-shaped spring material which consists of Inconel, for example.

The surface pressing member may be one capable of pressing the tube through the surface, and the surface pressing member has a cutout that surrounds the cylindrical portion of the tube from three sides, and after the temporary fixing of the tube, between the pair of fitting supports of the pressing member. Even if the distance is changed, it is provided in one fitting support part of a pressing member so that posture change is possible so that a flange part may be pressed to a surface. It is preferable that this surface pressing member is provided in the one-piece fitting part of a press member by point or substantially line contact. Moreover, it is preferable that the surface pressing member has a recess for preventing misalignment with the vent pipe.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is described in detail based on embodiment shown in drawing. In addition, this invention is not limited by this, A various deformation | transformation is possible.

(1st embodiment)

1 (a) and 1 (b) are explanatory views showing a first embodiment of the clip for attaching the display panel seal of the present invention. Fig. 1A is a front view and Fig. 1B is a plan view.

The display panel sealing attachment clip of the present invention is used for temporarily fixing the vent pipe when sealingly attaching the back side substrate and the front side substrate for PDP.

The display panel sealing attachment clip 1 of 1st Embodiment is comprised by the two elements of the spring press member 2 which presses a vent pipe with a spring, and the surface press member 3 which presses a vent pipe to a surface. The spring pressing member 2 is bent in a U shape to configure a pair of fitting supports at both ends. The spring pressing member 2 and the face pressing member 3 are connected with screws 4 so that the posture change of the face pressing member 3 is possible, and the face pressing member 3 always contacts the vent pipe uniformly with the face. It is configured to. Moreover, the surface press member 3 is equipped with the recess for preventing position shift with a vent pipe, and prevents the position shift of the display panel sealing attachment clip 1 and a vent pipe.

As the spring press member 2, the plate-shaped spring material which consists of Inconel was bent in substantially triangular form, and it used as the clip. The distal end of the spring pressing member 2 is a fitting support 5 for fitting the vent pipe.

As the surface press member 3, the plate-shaped member which consists of SUS materials, for example is used. The surface pressing member 3 is formed into a triangular or circular arc shape on the reverse side of the side in contact with the vent pipe, that is, the side connected to the spring pressing member 2. The side which contacts the vent pipe is provided with the position shift prevention recessed part according to the flange shape of the vent pipe, and it fits the display panel sealing attachment clip 1 and the vent pipe by fitting the vent pipe to this position shift prevention recess. .

The upper holding part 2a and the lower holding part 2b are formed in the spring pressurizing member 2, and these upper holding part 2a and the lower holding part 2b are clamped by the opening | closing auxiliary jig 5 To open and temporarily fix the back side substrate and the front side substrate together with the vent pipe with the fitting support (5).

The spring pressing member 2 is provided with a rocking prevention member 2c. This rocking prevention member 2c is a member for restraining the spring pressurizing member 2 from oscillating in contact with the back side substrate in the state where both substrates are sandwiched by the fitting support 5.

2 (a) to 2 (d) are explanatory views showing the configuration of the surface pressing member. Figure 2 (a) is a plan view of the surface pressing member, Figure 2 (b) is a side view of the surface pressing member, Figure 2 (c) is a front view of the surface pressing member, and Figure 2 (d) is a surface pressing member It is the back side of.

The surface pressing member 3 is a member for pressing the vent pipe 31 to the surface. The vent pipe 31 is comprised from the cylindrical part 31a and the flange part 31b, and the flange part 31b contacts the back side board | substrate 21. As shown in FIG. On the outer circumference of the flange portion 31b, a ring-shaped adhesive member 32 and an adhesive auxiliary member 33 are disposed.

The surface press member 3 has the notch 3a which surrounds the cylindrical part 31a of the vent pipe 31 from three directions. And even after the temporary fixing of the vent pipe 31, even if the distance between a pair of fitting support part 5 changes, it is provided in the spring press member 2 so that the attitude | position can be changed so that the flange part 31b may be pressed to a surface. .

Specifically, as shown in Fig. 2B, the attachment surface of the surface pressing member 3 is arc-shaped, and the arc-shaped surface is in linear contact with the spring pressing member 2, It is attached with screws 4 so as to shake at the position where it is in line contact. Therefore, the surface press member 3 can change a posture in the direction shown by G in the figure. Although the surface of the surface pressing member 3 has been shown to have an arc shape, the line pressing member 3 may be in line contact or point contact with the spring pressing member 2, and may be triangular.

On the back surface of the surface pressing member 3, as shown in FIG. 2 (d), the position shift prevention recessed part 3b is provided. This position shift prevention recessed part 3b prevents a position shift with respect to the vent pipe 31 of a clip for display panel sealing. This position shift prevention recessed part 3b is sized so that the ring-shaped adhesive member 32 and the adhesion | attachment auxiliary member 33 which were provided in the outer periphery of the flange part 31b of the vent pipe 31 fit correctly.

It is explanatory drawing which shows the state which temporarily fixed the vent pipe with the clip for attaching display panel sealing.

The display panel sealing attachment clip 1 opposes the back side substrate 21 and the front side substrate 11 on which the seal attachment material 34 is disposed, and seals and seals both substrates, while the vent pipe 31 is sealed. ) Is temporarily fixed when the vent pipe 31 is attached to the back side substrate 21. The back side substrate 21 is provided with the ventilation hole 35 which communicates inside and outside a panel. The vent pipe 31 is comprised from the cylindrical part 31a and the flange part 31b formed in the one end part of the cylindrical part 31a.

The display panel sealing attachment clip 1 arranges the vent pipe 31 so that the flange portion 31b faces the vent hole 35 and seals the periphery of the substrate while exhausting the inside of the panel through the vent pipe 31. When attaching, both board | substrates 11 and 21 are interposed and temporarily fixed, and the vent pipe 31 is temporarily fixed to the board | substrate 21. FIG. At the time of temporary fixation, the display panel sealing attachment clip 1 is opened using the opening / closing auxiliary jig, and the vent pipe is temporarily fixed.

When the inside of the panel is exhausted, the inside of the panel becomes a negative pressure. As a result, a suction force acts between the front side substrate 11 and the back side substrate 21, and the sealant 34 is applied to both substrates. While being pressed by and softened by heating, the fitting support amount of the pair of fitting supports of the spring pressing member 2 is changed, but at this time, the surface pressing member 3 is connected to the spring pressing member 2 in a posture changeable manner. Since the flange surface of the vent pipe 31 can be uniformly pressed at all times, the inclination and cracking of the vent pipe 31 can be prevented. In addition, when the sealing attachment material 34 is softened, the adhesive member 32 of the vent pipe 31 is also softened, thereby changing the fitting support of the pair of fitting supports of the spring pressing member 2.

(2nd embodiment)

4 (a) and 4 (b) are explanatory views showing a second embodiment of the display panel sealing attachment clip of the present invention. Fig. 4A is a front view and Fig. 4B is a plan view.

The display panel sealing-attachment clip 1 of 2nd Embodiment is the spring press member 12 which has a scissors shape, and presses a vent pipe with a spring, and the surface press member 3 which presses a vent pipe to a surface. It consists of elements. The spring pressing member 12 and the face pressing member 3 are connected with screws 4 so that the posture change of the face pressing member 3 is possible, and the face pressing member 3 always contacts the vent pipe uniformly with the face. It is configured to. Moreover, the surface press member 3 is equipped with the position shift prevention recessed part, and prevents the position shift of the display panel sealing attachment clip 1 and the vent pipe.

As the spring pressing member 12, a pair of clip-supporting pieces 12a and 12b made of SUS plate material and a coil-shaped spring material (not shown) made of Inconel constitute a scissors clip. The pair of fitting supports 12a and 12b are configured to face each other.

The pair of fitting support pieces 12a and 12b are the fitting support part 5 which the front end part fits through a vent pipe, the rear end part becomes the opening-closing operation part 14, and the middle part is the connection rotating part 15. It is rotatably connected in this connecting rotation part 15, and the fitting support part 5 of a pair of fitting support pieces 12a and 12b contact | connects with the spring (not shown) provided in the connection rotating part 15. It is pressed in the direction.

As for the one side fitting support piece 12a, the surface supporting member 3 which presses the flange part of a vent pipe to the surface is provided in the fitting support part 5. This surface pressing member 3 is the same structure as 1st Embodiment. In this embodiment, by making the display panel sealing attachment clip 1 into scissors shape, the opening and closing auxiliary jig similar to 1st Embodiment is not needed, and it can temporarily fix a vent pipe.

5 and 6 are explanatory diagrams showing a mounting state of a display panel sealing attachment clip. Fig. 5 shows before attaching the substrate seal, and Fig. 6 shows during attaching and after attaching the substrate seal. These figures have shown the example using the display panel sealing attachment clip of 2nd Embodiment.

Before sealing of the board | substrate, as shown in FIG. 5, the sealing adhesive 34 and the adhesive member 32 are not softened, and in this state, the ventilation pipe 31 is carried out by the clip 1 for display panel sealing attachment. Is inserted together with the substrates 11 and 21, the vent pipe 31 is temporarily fixed by the pressing member 3.

During and after the sealing adhesion of the board | substrate, as shown in FIG. 6, the sealing adhesion material 34 and the adhesion member 32 will be in the softened state by heating. In this case, in the fitting support part, although the pair of fitting support pieces 12a and 12b are pressed by the spring in the direction which adjoins each other, since the surface pressing member 3 contacts the flange part 31b of the vent pipe 31, The pair of fitting supports 12a and 12b are no longer in proximity. At this time, the fitting support angle of the display panel sealing attachment clip changes before the sealing attachment of the substrate, but since the posture of the surface pressing member 3 is changed, the flange portion 31b of the vent pipe 31 can always be pressed in a plane. .

Thus, when sealingly attaching the back side board | substrate 21 and the front side board | substrate 11 which temporarily fixed the vent pipe, even if the clamping support amount of a pair of fitting support piece 12a, 12b changes, the surface pressing member 3 Since the posture is connected to one of the fitting support pieces 12a so that the attitude can be changed, it is possible to uniformly press the flange face of the vent pipe 31 at all times, thereby preventing the inclination and cracking of the vent pipe 31.

In addition, in each said embodiment, although both board | substrates were comprised by the negative pressure at the time of exhausting the inside of a panel, the structure which presses the board | substrate periphery with a some clip may be sufficient. In addition, the display panel sealing attachment clip can be used only in the process of adhering the vent pipe.

Claims (5)

A pair of substrates having ventilation holes communicating with the inside and outside of the panel are disposed so as to face each other, and the vent pipe consisting of a cylinder portion and a flange portion formed at one end of the cylinder portion faces the ventilation hole. It is a display panel sealing attachment clip which interposes and fixes both board | substrates and a vent pipe in the state arrange | positioned, A pressurizing member having a pair of fitting supports for fitting the flange portions of both substrates and the vent pipe together at the distal end, and for urging the pair of fitting supports in a direction of proximate; It consists of a surface pressing member connected to one of the fitting support to press the flange portion of the vent pipe to the surface, In addition, the surface pressing member has a cutout that surrounds the cylindrical portion of the vent pipe from three sides, and the surface contact state of the pressing surface is maintained evenly even when the distance between the pair of fitting supporting portions of the tip portion of the pressing member is changed. Clip for attaching the display panel which has a connection structure which can change a posture with respect to one fitting support part. The display panel sealing according to claim 1, wherein the pressing member comprises a pair of fitting support pieces each having a pair of fitting supports for fitting both substrates and the vent pipe at the front end, an opening and closing operation part at the rear end, and a connecting rotating part in the middle. Attachment clip. The display panel sealing attachment clip according to claim 1, wherein the surface pressing member is connected to one of the pressing members of the pressing member so that the posture can be changed by point or line contact. The display panel sealing sticking clip of Claim 1 which has a position shift prevention recessed part in which the upper outer edge part of a flange part is fitted in the pressing surface of a surface pressing member. It is a clip used when adhering the vent pipe with a flange used for exhaust or discharge gas filling of a plasma display panel to a board | substrate of the said plasma display panel with an adhesive member, The surface pressing member which presses the flange part of the vent pipe to the surface is shaken to the fitting support part of the side which supports the flange part of the said vent pipe, and the said surface press member has the notch part which surrounds the main body part of the vent pipe from three sides. At the same time, the clip formed in an arc shape so that the surface in contact with the fitting support can be changed posture.

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