JP3114702B2 - Jig for non-contact type pressure device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for a non-contact pressure device.

[0002]

2. Description of the Related Art For example, a liquid crystal panel has a gap for injecting liquid crystal between two glass substrates, and injects liquid crystal into the gap.

[0003] A non-contact type pressure device is used to obtain a uniform gap and eliminate display unevenness by pressing a liquid crystal panel display surface after injecting liquid crystal into a gap from an injection hole between two glass substrates. Used.

In a non-contact type pressurizing device disclosed in Japanese Patent Application Laid-Open No. 4-147217, a pressurizing hose is connected to a liquid crystal panel by a lower pressurizing base having a recess and an upper pressurizing base. Pressurized air is supplied to the recess through the liquid crystal panel, so that both sides of the liquid crystal panel are uniformly pressed.

[0005]

However, in the non-contact type pressurizing device disclosed in Japanese Patent Application Laid-Open No. 4-147217, an O-ring is used as a sealing material, and the peripheral surface of the O-ring is covered with Teflon tape. Since the Teflon tape is applied to the liquid crystal panel by the O-ring for hermetic sealing, it is difficult to reliably apply the Teflon tape to the liquid crystal panel due to the familiarity between the O-ring and the Teflon tape. There is a possibility that the pressure in the pressurized space secured by the base and the Teflon tape cannot be set to a required value.

[0006] Japanese Patent Application Laid-Open Nos. Hei 8-243306 and Hei 9
Japanese Patent Application Laid-Open Nos. 264443/1996, 332158/1995, and 7-310828 / 1995 disclose various types of seal materials in place of O-rings, but all of them have complicated shapes. Covering the peripheral surface of the seal material with Teflon tape may cause a new problem due to the familiarity between the seal material and the Teflon tape.

An object of the present invention is to provide a jig for a non-contact type pressurizing device which solves the above-mentioned problems.

[0008]

In order to achieve the above object, a jig for a non-contact type pressurizing device according to the present invention is a jig for a non-contact type pressurizing device having a seal packing and a seal plate. The seal packing is an endless irregular shaped X-shaped sealing material having a deformed lip on a front surface side which is held and protruded by the seal plate, and the deformed lip has a protrusion height. The inner peripheral lip is in close contact with the planar sealing portion, and the inner peripheral lip is elastically deformed and pressed against the planar sealing portion by a reaction force. The seal plate fits and holds the back side of the seal packing, and secures a pressurized space that is shielded from the outside on the inner peripheral side of the endless seal packing, and has a high-pressure gas supply unit, The high-pressure gas supply unit is It is intended to introduce the high pressure gas within.

The outer peripheral lip has a flat shape at the contact side end surface and is in close contact with the planar sealing portion by a rolling force. The inner peripheral lip has a tongue-like shape and is elastically deformed. And presses against the planar sealing portion by receiving the reaction force of the pressure and the pressure in the pressurized space.

[0010] In addition, two sets of the seal packing and the seal plate are provided to secure the pressurized space on both sides of the planar sealing portion.

The seal plate fits and holds the back side of the seal packing on both surfaces, and the endless seal packing held by the seal plate is applied to the planar sealing portion to seal the seal. Plates are arranged in multiple stages, the planar sealing portions are arranged in multiple stages sandwiching between the upper and lower seal plates, and the pressurized spaces are secured on both sides of the planar sealing portions in each stage. .

The pair of seal plates have stoppers on opposing surfaces, and the stoppers abut against each other to keep the interval between the pair of seal plates within a range where the seal packing is not abnormally deformed. .

[0013] The seal packing has a concave portion which is elastically deformed on the back side, and the concave portion of the seal packing is elastically deformed and comes into close contact with the seal plate. Is a dovetail-shaped groove.

The planar sealing portion is a liquid crystal panel having a gap for injecting liquid crystal between two glass substrates.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is an exploded perspective view showing a jig for a non-contact type pressurizing apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a non-contact type jig according to Embodiment 1 of the present invention. FIG. 3 is an enlarged cross-sectional view of a part A in FIG. 2, showing a state before pressurization by an external force. FIG. 4 is an enlarged cross-sectional view of a part A in FIG. 2. It is a figure and is sectional drawing which shows the state after pressurization by external force.

As shown in the figure, the jig for a non-contact type pressurizing device according to the first embodiment of the present invention has a seal packing 4 and a seal plate 5.

The seal packing 4 has lips 4a and 4b having different shapes on the front side protruding while being held by the seal plate 5.
, And has a structure of an endless irregular shaped X-shaped sealing material.

The lips 4a and 4b having different shapes are composed of two inner and outer lips having different protruding heights. The height of the outer lip 4b is HB, and the height of the inner lip 4a is
HA, and the height is set in a relation of HA> HB.

The outer peripheral lip 4b of the lips 4a and 4b having different shapes is a peripheral portion of the liquid crystal panel 1 as a planar sealing portion, in particular, two glass substrates 1 constituting the liquid crystal panel 1.
The liquid crystal panel 1 is in close contact with the liquid crystal panel 1 at a position corresponding to the sealing material 2 inserted between the liquid crystal panel 1 and the liquid crystal panel 1b.

The inner peripheral side lip 4a of the lips 4a and 4b having an irregular shape is elastically deformed, and the peripheral portion of the liquid crystal panel 1 as a planar sealing portion due to a reaction force, in particular, two sheets of glass constituting the liquid crystal panel 1. Seal material 2 fixed between substrates 1a and 1b
Is pressed against the liquid crystal panel 1 at a position corresponding to.

Further, the outer peripheral side lip 4b has a flat shape on the contact side end face, and is adapted to be in close contact with the peripheral edge of the liquid crystal panel 1 by a rolling force. The inner peripheral side lip 4a has a tongue shape. By receiving the reaction force due to the elastic deformation and the pressure in the pressurizing space S, the liquid crystal panel 1 is pressed against the periphery.

The seal plate 5 fits and holds the rear side 4c of the seal packing 4 in the groove 6, and secures a pressurized space S which is shielded from the outside on the inner peripheral side of the endless seal packing 4. It has a high-pressure gas supply unit 10a. The high-pressure gas supply unit 10a is opened inside the pressurized space S inside the endless seal packing 4 and has a high-pressure gas (for example, high-pressure air,
High-pressure nitrogen gas or the like) is introduced into the pressurized space S.

The seal packing 4 has a concave portion 4d which is elastically deformed on the rear side 4c, and the groove 6 for holding the seal packing rear side 4c of the seal plate 5 has a dovetail-shaped structure. The concave portion 4 d of the seal packing 4 is elastically deformed by receiving a rolling force and is brought into surface contact with the bottom surface of the groove 6 of the seal plate 5.

The jig for the non-contact type pressure sealing device according to the first embodiment of the present invention shown in FIG. 1 includes two sets of the seal packing 4 and the seal plate 5 (the seal packings 4 and 4 and the seal plate 5a). , 5a) so as to secure pressurized spaces S on both sides of the liquid crystal panel 1, respectively.

The pair of seal plates 5a, 5a have stoppers 7a, 7b on opposing surfaces, respectively, and the stoppers 7a, 7b abut against each other to form seal plates 5a, 5b.
The distance a is kept in a range where the seal packings 4 and 4 do not deform abnormally.

Therefore, as shown in FIG. 4, when an external pressure is applied until the stoppers 7a and 7b come into contact, the lips 4a and 4b are elastically deformed, and a relationship of HA = HB = HC is established, and the contact surfaces 8a and 8a and the contact surfaces Sealed at 9a. The concave portion 4 d is also elastically deformed and comes into close contact with the bottom surface of the groove 6.

Here, the liquid crystal panel 1 is composed of two glass substrates 1a and 1b whose periphery is bonded by a sealing material 2 as shown in FIG. 1 and FIG. An injection hole 3 is provided,
It is necessary to inject liquid crystal into the gap G between the two glass substrates 1a and 1b constituting the liquid crystal panel 1, and to seal the injection hole 3 with an ultraviolet curing resin.

Next, a case where the liquid crystal is injected into the liquid crystal panel 1 using the jig for the non-contact type pressurizing device according to the first embodiment of the present invention, and then the injection hole 3 is sealed will be described as an example. .

As shown in FIG. 3, the liquid crystal panel 1 is set between a pair of seal plates 5a, 5b, and the lips 4a, 4b having different shapes are attached to the two glass substrates 1a, 1b constituting the liquid crystal panel 1. It is positioned at a position corresponding to the sealing material 2 inserted therebetween.

Subsequently, as shown in FIG. 4, press pressures 11a, 11a are applied to the pair of seal plates 5a, 5a to securely fix the liquid crystal panel 1.

Pressing pressures 11a, 11a on the pair of seal plates 5a, 5a are applied to stoppers 7a, 7b.
Are performed until they contact each other, the lips 4a and 4b of the seal packing 4 are elastically deformed.

The outer peripheral side lip 4b has a contact side end face in contact with the liquid crystal panel 1 with the contact surfaces 9a, 9a, and comes into close contact with the peripheral edge of the liquid crystal panel 1 by the rolling force of the pressurizing pressures 11a, 11a. The tongue portion of the inner peripheral side lip 4a is elastically deformed, and is pressed against the peripheral portion of the liquid crystal panel 1 with the contact surfaces 8a, 8a by the reaction force.

Next, high-pressure gas is introduced into the pressurized space S secured by the seal plates 5a, 5a and the seal packing 4 through the high-pressure gas supply unit 10a.

The high-pressure gas introduced through the high-pressure gas supply unit 10a is supplied at a pressure of about の of the rolling force of the pressurizing units 11a, 11a, and uniformly pressurizes the display surface of the liquid crystal panel 1. Thereby, the two glass substrates 1a, 1a
The gap G between them is kept uniform.

The high-pressure gas supply unit 10a is
When the high-pressure gas is introduced through the liquid crystal, the pressure of the high-pressure gas acts on the inner peripheral lip 4a, and the inner peripheral lip 4a receives the reaction force due to the elastic deformation and the pressure in the pressurizing space S, and has a strong adhesive force. It is crimped to the periphery of the panel 1.

As described above, according to the first embodiment of the present invention, due to the elastic deformation of the modified X-shaped seal packing, the seal packing and the liquid crystal panel are completely adhered to each other without any gap, and the leakage of high-pressure gas can be prevented. Therefore, the effect of pressurizing the liquid crystal panel display surface can be improved.

Further, since the display surface of the liquid crystal panel 1 is uniformly reduced by pressurizing the high-pressure gas, excess liquid crystal which has been excessively injected into the gap between the two glass substrates can be discharged. Can be kept uniform.

Since the liquid crystal panel display surface is pressurized by a non-contact pressurization method using a high-pressure gas, foreign matter is prevented from being mixed in from a spacer material used in the contact type, and cracking and chipping of the panel can be prevented. it can.

(Embodiment 2) FIG. 5 is an exploded perspective view showing a jig for a non-contact type pressure sealing device according to Embodiment 2 of the present invention, and FIG. It is sectional drawing which shows the jig for contact-type press sealing apparatuses.

In the first embodiment of the present invention shown in FIG. 1, a case where one sheet of liquid crystal panel 1 is set between a pair of seal plates 5a and 5b to perform single-wafer processing has been described. In the second embodiment of the present invention, an example in which a plurality of liquid crystal panels 1 are batch-processed collectively.

In the second embodiment of the present invention, except for the uppermost seal plate 5a and the lowermost seal plate 5a,
The other seal plate 5c fits and holds the back side of the seal packing 4 on both sides. The structure for fitting and holding the back side of the seal packing 4 on both sides of the seal plate 5c has the same configuration as that of the first embodiment.

In the second embodiment of the present invention, the endless seal packing 4 held on both surfaces of the seal plate 5c
Is applied to the periphery of the liquid crystal panel 1 to seal plate 5
c are arranged in multiple stages, and the upper and lower seal plates 5a, 5c,
The liquid crystal panels 1 are arranged in multiple stages sandwiched between 5c and 5a, and pressurized spaces S are secured on both sides of the liquid crystal panel 1 in each stage.

According to the second embodiment of the present invention, as shown in FIG. 6, the seal plates 5a, 5c and the liquid crystal panel 1 are superposed in multiple stages, so that a large number of liquid crystal panels 1 can be processed collectively. It can be optimized as a jig.

In the embodiment of the present invention, the liquid crystal panel 1
Used for sealing the liquid crystal injection hole into the substrate, but is not limited thereto.

After the sealing operation is completed, the high-pressure gas supply pressure and the pressurizing pressure (external pressure) are released, and the liquid crystal panel 1 is peeled off from the seal packing 4. The surface of the seal packing 4 is coated with Teflon. Thereby, the releasability from the liquid crystal panel 1 may be increased, and the operation rate of the device may be improved.

[0047]

As described above, according to the present invention, due to the elastic deformation of the deformed X-shaped seal packing, the seal packing and the liquid crystal panel are completely adhered to each other without any gap, and the leakage of high-pressure gas can be prevented. Therefore, the effect of pressing the display surface of the liquid crystal panel can be improved.

A large number of liquid crystal panels can be collectively processed by stacking the seal plate and the liquid crystal panel in multiple stages.
Ideal as a jig for mass production.

Further, since the display surface of the liquid crystal panel is uniformly reduced by pressurizing the high-pressure gas, excess liquid crystal that has been excessively injected into the gap between the two glass substrates can be discharged.
The gap of the liquid crystal panel can be kept uniform.

Since the liquid crystal panel display surface is pressurized by a non-contact pressurization method using a high-pressure gas, no foreign matter is mixed in from a spacer material used in the contact type, and cracking and chipping of the panel can be prevented. it can.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a jig for a non-contact pressure device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a jig for a non-contact type pressurizing device according to Embodiment 1 of the present invention.

FIG. 3 is an enlarged sectional view of a portion A in FIG. 2, showing a state before pressurization by an external force.

FIG. 4 is an enlarged cross-sectional view of a portion A of FIG. 2, showing a state after pressurization by an external force.

FIG. 5 is an exploded perspective view showing a jig for a non-contact pressure device according to Embodiment 2 of the present invention.

FIG. 6 is a cross-sectional view showing a jig for a non-contact type pressure device according to Embodiment 2 of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid crystal panel 1a, 1b Glass substrate 2 Sealing material 3 Injection hole 4 Deformed X-type seal packing 4a, 4b Lip 5a, 5a Seal plate 6 Groove 7a, 7b Stopper 10 High pressure gas supply part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G02F 1/13 101 G02F 1/1339 505 G09F 9/00 339

Claims (7)

(57) [Claims] 1. A jig for a non-contact type pressurizing device having a seal packing and a seal plate, wherein the seal packing has an irregularly shaped lip on a front side protruding while being held by the seal plate. An endless shaped X-shaped sealing material, wherein the shaped lip comprises two inner and outer lips having different protruding heights, and an outer peripheral side lip is in close contact with the planar sealing portion, The side lip is elastically deformed and pressure-bonded to the planar sealing portion by a reaction force, and the seal plate fits and holds a rear side of the seal packing, and is provided on an inner peripheral side of the endless seal packing. The high-pressure gas supply unit has a high-pressure gas supply unit that secures a pressurized space cut off from the outside, and the high-pressure gas supply unit introduces high-pressure gas into the pressurization space. Jig for contact type pressurizing device. 2. The outer peripheral side lip has a flat shape on a contact side end face and is in close contact with the planar sealing portion by a rolling force. The inner peripheral side lip has a tongue-like shape and is elastic. The jig for a non-contact type pressurizing device according to claim 1, wherein the jig is pressed against the planar sealing portion by receiving a reaction force due to deformation and a pressure in the pressurizing space. 3. The pressure seal space according to claim 1, wherein two sets of the seal packing and the seal plate are provided to secure the pressurized space on both sides of the planar sealing portion.
The jig for a non-contact pressurizing device according to item 1. 4. The seal plate fits and holds the back side of the seal packing on both surfaces, and the endless seal packing held by the seal plate is applied to a planar sealing portion to hold the seal packing. Seal plates are arranged in multiple stages, the planar sealing portions are arranged in multiple stages sandwiching between the upper and lower seal plates, and the pressurized space is secured on both sides of the planar sealing portions in each stage. The jig for a non-contact pressurizing device according to claim 1, wherein the jig is provided. 5. The pair of seal plates each have a stopper on an opposing surface, and the stoppers abut against each other to keep the interval between the pair of seal plates within a range where the seal packing does not abnormally deform. 4. The jig for a non-contact type pressurizing device according to claim 1, wherein the jig is provided. 6. The seal packing has a concave portion that is elastically deformed on the back side, and the concave portion of the seal packing is elastically deformed and comes into close contact with the seal plate, and the seal packing rear surface of the seal plate. 4. The jig for a non-contact type pressure device according to claim 1, wherein the groove holding the side has a dovetail shape. 7. The liquid crystal panel according to claim 1, wherein the planar sealing portion is a liquid crystal panel having a gap for injecting liquid crystal between two glass substrates. The jig for a non-contact pressurizing device according to item 1.