JPS5811629B2 - Manufacturing method of electrode connector for liquid crystal display tube - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for manufacturing an electrode connector for a liquid crystal display tube.
In particular, a special conductive heat seal composition that does not involve any precision molding process like the electrode connector of a rectangular parallelepiped silicone rubber molded body in which conductive parts and insulating parts are formed in alternating layers and integrally with precise dimensions. things and
Using a flexible insulating film substrate with an extremely thin and uniform thickness, a simple press and a high frequency generator,
The present invention relates to a method of manufacturing an electrode connector for a liquid crystal display tube that is easy and inexpensive to attach conductive parts with fine pitches and accurate attachment.

In the conventional manufacturing method of an electrode connector for a liquid crystal display tube, first, silicone rubber and conductive powder such as carbon black are mixed to form a conductive rubber raw material, and this is molded into a shape having a desired thickness.

Next, a separate insulating part made of silicone rubber is molded to the desired thickness, and after applying silicone adhesive to the joint surfaces of these parts, the conductive part made of this conductive silicone rubber and the insulating silicone An electrode connector is obtained by attaching an insulating part made of rubber, pressing it to a certain thickness, and then cutting it to a desired size.

However, with this conventional method, when producing conductive rubber, there is a great deal of variation, and it is difficult to obtain rubber with good conductivity, and therefore it is not possible to produce thin electrode connector structures.

Furthermore, it is extremely difficult to mold a conductive part having a fine pitch of, for example, 0.1 to 0.2 mm.

Moreover, the cost is extremely high.

The present invention has been made to eliminate the above-mentioned drawbacks.
To provide a manufacturing method capable of forming an electrode connector for a liquid crystal display tube at a low cost by molding it into a shape having a desired thickness through a relatively simple manufacturing process, having a fine pitch of conductive parts, and at a low cost.

In the present invention, first, (a) 10 to 70 fine powders made of one or more of graphite powder with an F2 degree of 0.1 to 40μ, silver powder, and carbon black with a particle size of 0.1μ or less;
(b) 10 to 65% by weight of a thermoplastic polymer binder of one or more of chloroprene synthetic rubber, polyamide resin, ethylene vinyl acetate copolymer resin, and polymethyl methacrylate resin, (c ) One or more solvents of isophorone, dipentene, acetophenone, chlorotoluene, ethylcalcitol, and toluene 26-6
When mixed with 0% by weight and dissolved and dispersed, the apparent specific gravity is 1.1.
~1.7, viscosity 100-500 poise suspension (a+b
Prepare +c).

Using this suspension, a screen or gravure printing coating is applied to at least one entire surface of a flexible insulating film substrate having desired dimensions, and a print coating surface formed in this step is coated. 5-1 at a temperature of 50-150℃
Step (B) of drying for 5 minutes, and depositing a desired number of flexible insulating film substrates coated with the conductive heat sealing composition obtained in step (B) in a layered manner with the coated surfaces alternately; While applying pressure of ~30 kg/ant vertically,
A step (C) of thermally reactivating the conductive heat-sealing composition by applying a high frequency of 100 KH2 to 10 MHz, integrally laminating the flexible insulating film substrate, and depressurizing after cooling; This process consists of combining (A+B+C+D) with step (D) of cutting the multilayer molded body made of alternating conductive layers and insulating layers obtained in step C) into a desired shape and size.

In addition, in the present invention, the above-mentioned fine powder (a) 10 to 7
0% by weight and the same thermoplastic polymeric binder (b) as described above.
10 to 65% by weight, further 0.1 to 20% by weight of one or more tackifiers (d) of terpene resins, phenolic resins, and aliphatic hydrocarbon resins, and the above-mentioned solvent (c).
) 10 to 60% by weight are mixed and dissolved and dispersed to prepare a suspension (a+b+c+d) with an apparent specific gravity of 1.1 to 1.7 and a viscosity of 100 to 500 poise.

That is, a suspension is prepared by using the thermoplastic polymer binder (b) and the tackifier (d) together.

However, using this suspension, a step (A) of applying screen or gravure printing to at least one entire surface of a flexible insulating film substrate having desired dimensions;
) at a temperature of 50 to 150°C.
After drying for 15 minutes, a desired number of flexible insulating film substrates coated with the conductive heat-sealing composition obtained in step (B) are deposited in a layered manner with the coated surfaces alternated. While applying pressure of 30 kg/cm2 vertically,
A step (C) of thermally reactivating the conductive heat-sealing composition by applying a high frequency of 100 KHz to 10 MHz, integrally laminating the flexible insulating film substrate, and depressurizing after cooling; This process consists of combining (A+B+C+D) with step (2) of cutting the multilayer molded product obtained in step C) consisting of alternating conductive layers and insulating layers into desired shapes and dimensions.

However, the quantity limitation in the composition of the graphite, silver and carbon black powder (a) according to the present invention, namely,
If the upper and lower limits of 10 to 70 weight ratio are exceeded, the stability of the suspension used for application by printing and the so-called "glue" and "consistency" of printability are not good, especially when the upper limit is exceeded. Adhesive strength is not sufficient and is not acceptable.

Moreover, if it is less than the lower limit, the resistance value becomes high and the conductivity is insufficient, so it is not acceptable.

In addition, the particle size of the powder a) is 40 in the case of silver and graphite.
If it exceeds μ, the stability of the suspension cannot be obtained because the so-called "glue" and adhesion of printing cannot be sufficiently obtained.

Further, the lower limit is set to 0.1 μ because it is usually commercially available and is suitable in view of the viscosity, consistency, printability, etc. of the suspension.

Further, in the case of the carbon black, the particle size is set to 0.1μ or less because it is difficult to obtain particles with a particle size exceeding 0.1μ industrially.

In addition, in the case of carbon black, unlike the cases of silver and graphite, the particles are bonded together like a chain, so that printability is suitable even if the particles are fine.

Next, chloroprene-based synthetic rubber and thermoplastic resin (b)
Among these, as the chloroprene-based synthetic rubber, it is possible to use, for example, vinylol 2200, vinylol 2700, and the like manufactured by Showa Kobunshi Co., Ltd., which are layered on neoprene rubber.

Next, the polyamide resin is obtained by performing a condensation reaction between dimer acid and alkylene polyamine, and has an average molecular weight of about 700 to 7000 and a softening point of 110 to 18.
5℃, melt viscosity (viscosity at 2000℃) 1.8-4
Polyamide resins with 0 poise, such as Tomide (trade name, manufactured by Fuji Kasei Kogyo Co., Ltd.) and equivalent product name (Gutdomite, manufactured by Tobu Kasei Co., Ltd.), can also be used.

In addition, as the ethylene vinyl acetate copolymer resin, for example, Vinyroll 5E-L manufactured by Showa Kobunshi Kagaku Co., Ltd.
In addition, as the polymethyl methacrylate resin, for example, the product name DIANAL LR- manufactured by Mitsubishi Rayon Co., Ltd.
866 etc. can be used.

Next, the chloroprene-based synthetic rubber and thermoplastic resin (b
), that is, if the quantity is less than the lower limit of 10 to 65 weight coefficients, the viscosity will be low, the consistency will be insufficient, the printability will be poor, and there will be no adhesive strength, so it is not acceptable.

If the upper limit is exceeded, the consistency will be too high, the solubility of the resin will be poor, and the printability will be poor, making it impossible.

Next, among the above-mentioned tackifiers (d), examples of the terpene resin include Quinton U-185 (softening point: 85°C, specific gravity: 0.99), manufactured by Nippon Zeon Co., Ltd., and Finton A-100. (Softening point 100°C1 specific gravity 0.97
), as the aliphatic hydrocarbon resin, for example, Mitsui Hiretsu (average molecular weight 1200) manufactured by Mitsui Petrochemical Industries, Ltd.
, a softening point of 100° C., and a specific gravity of 0.97).

Next, determining the quantity in the composition of the viscosity imparting agent (d),
That is, if the upper limit of 0.1 to 20 weight ratio is exceeded, the consistency will be too high, the solubility of the resin will be poor, and the printability will be poor, making it impossible.

If the lower limit is exceeded, no tackifying effect will be produced and it is not acceptable.

Next, if the limited quantity of the solvent (c) for the chloroprene-based synthetic rubber and thermoplastic resin (b) and the tackifier (d) exceeds the upper limit of 25 to 60% by weight, the apparent Both specific gravity and viscosity are not acceptable because they are too low, and if the lower limit is exceeded, the specific gravity and viscosity will increase in appearance and the solubility will be poor, so this is not acceptable.

As mentioned above, each preparation raw material (a), (b),
(c) or (a), (b), (c), (
d) are mixed in predetermined amounts and uniformly dissolved and dispersed to give an apparent specific gravity of 1.1 to 1.7 and viscosity of 100 to 500.
Poise suspension (a+b+c) or (a+b+c+d)
In this case, the apparent specific gravity of this suspension is 1.
If it is less than 1, the components of graphite, silver, carbon black (a), chloroprene synthetic rubber and thermoplastic resin b), and tackifier (d) tend to be insufficient, resulting in poor adhesion resistance. , exceeding 1.7, the consistency increases and is not acceptable.

If the viscosity is less than the above-mentioned lower limit, the adhesion resistance and consistency of "glue" in printing will be insufficient, and if it exceeds the upper limit, the consistency will be too high and the printability will deteriorate, which is unacceptable.

Next, the insulating film substrate to which this suspension is applied by printing may be a board or film made of natural rubber, synthetic rubber, vinyl chloride resin, polypropylene resin, polyamideimide resin, polyurethane resin, polyester resin, etc. A thin, flexible film substrate with uniform thickness can be used.

The thickness of this film can be selected as desired from a minimum of about 0.01 to 0.03 mm to a larger thickness.

Application by printing onto these insulating film substrates can be easily carried out by screen or gravure printing using the suspension as a printing ink [Step (A)]
.

Next, the coated surface obtained in this printing coating step (A) is dried for approximately 5 to 15 minutes at a temperature of 50 to 150°C.
Process (B)].

In this case, drying is insufficient at temperatures lower than 50°C.
If the temperature exceeds 150°C, it will have an adverse effect on the substrate, etc.

A suitable drying time is 5 to 15 minutes.

The thickness of the conductive layer, which will be described later, can be determined as desired depending on the composition and concentration of the suspension in this case.

Next, a desired number of flexible insulating film substrates coated with the conductive heat-sealing composition obtained by applying and drying the suspension in this drying process are deposited in layers with the coated surfaces alternately.
While applying pressure of ~30 kg/ffl up and down,
The conductive heat-sealing composition is thermally reactivated by applying a high frequency of 0 KHz to 10 MHz, and these insulating film substrates are integrated, that is, laminated, and after cooling, the pressure is released (top (C)).

That is, bonding is performed by high frequency heating.

If the pressure compression is less than iky/ff1, the crimping effect will not be sufficient, and if it exceeds 30 kg/crIL, it will have an adverse effect on the substrate itself depending on the type, and it is not necessary.

In addition, if the high frequency is less than 100 KHz, the thermal reactivation of the heat seal composition is insufficient and the adhesive strength is adversely affected.
If it exceeds 0MH2, it may even have an adverse effect on the film substrate itself depending on the type, and is not necessary from the viewpoint of melting the resin.

As mentioned above, except in special cases, cooling may be performed by allowing it to cool at room temperature, and it is preferable to cool it without releasing the pressure.

Next, the multilayer product of the conductive layer and the insulating layer obtained in the lamination molding step (C), that is, the laminated molded product, is cut into a desired size or shape [step (D)], and an electrode for a liquid crystal display tube is cut into a desired size or shape. Get the connector.

As described above, the pitch of the electrode connector for a liquid crystal display tube according to the present invention can be freely changed as desired depending on the thickness of the insulating film substrate and the thickness of the coating layer of the conductive heat-sealing composition. It is also extremely easy to mold objects with a fine pitch of, for example, 0.1 to 0.2.

Further, since the conductive portion can be applied by screen printing, the conduction of electricity is uniform and good in all parts, and the adhesive strength is completely and sufficiently guaranteed.

To briefly explain the drawing, after the printing coating process (A),
A perspective view of the conductive heat-sealing composition-covered flexible insulating film plate obtained in the drying step CB) is shown in FIG. 1, and a front view thereof is shown in FIG. 2.

The bonding surface between the flexible insulating film substrate 1 and the coated dry layer 2 of the conductive suspension composition adhered thereto is indicated by the numeral 3.

A is the horizontal (length) dimension of the flexible insulating substrate 1, which is actually 1
It is about 0 to 600 mm, and B is the vertical dimension of this board 1, and actually 10 to 6000 to 600 mm. C is the length of this board 1.
The actual thickness is about 0.01 to 3.0 mm.

D is the thickness of the coated dry layer 2 of the conductive suspension composition,
Actually, it is 0.01 to 0.5 heavy liquid degree.

E is the vertical dimension of the connector 11 made according to the present invention, which is actually about 1 to 10 mm, and F is the horizontal dimension of the connector 11, which is actually about 1 to 10 mm.
G is also the length of connector 11, which is actually 10 to 5
It is around 00 cities.

FIG. 3 shows the lamination molding process 0, in which a desired number of flexible insulating film substrates coated with the conductive heat sealing composition shown in FIGS. Then, this is applied to a compression press 4 (pressure P) equipped with a dielectric heating device that generates high frequency waves to perform thermocompression bonding, that is, so-called heat sealing.

As a result, a multilayer molded body 5 shown in FIG. 4 is obtained.

This is followed by a cutting step (cutting by means of a spout into the rectangular connector 12 shown in FIG. 5 (cutting or cutting equipment not shown).

The electrode connector 12 according to the present invention is shown in FIGS.
As shown in the figure, conductive portions 6 and insulating portions 7 are alternately laminated at desired regular intervals and integrally formed.

For example, as shown in FIG. 6, this is placed on the electrode 11 for a liquid crystal display tube to function as an electrode connector 12.

That is, in FIG. 6, an electrode connector 12 is placed on the electrode 11 on the edge portion 9 of the insulating plate 8 led out from the liquid crystal portion 10.
contact so that the conductive portion 6 of the

The present invention will be further described below with reference to Examples.

Example 1 45 parts by weight of the graphite powder in the above (a), 25 parts by weight of vinylol 2200 (trade name, manufactured by Showa Kobunshi Co., Ltd.) as the neoprene synthetic rubber in the above (b), 30 parts by weight of the solvent isophorone in the above (c) were uniformly dissolved and dispersed by mixing and stirring to prepare a conductive suspension composition (a+b+c) having an apparent specific gravity of 1.1 and a viscosity of 300 poise.

Next, this is applied to a thickness of 200 μm by screen printing on one entire surface of a 1 mm thick chloroprene rubber plate 1 [Step (A)].

This coated surface was dried at a temperature of 100'C for about 5 minutes [Step 1].

Next, the chloroprene rubber plates coated with the conductive heat-sealing composition obtained in the step (A+B) (Figures 1 and 2) are stacked in several layers so that the coated side is in contact with the non-coated side. , further stack the chloroprene rubber plate 1 on the top layer, apply a pressure of 5 kg/crA as shown in Fig. 3, and press 80
Thermocompression bonding was performed using a high frequency of 0 KHz [Step (C)
].

Next, this multilayer molded body was cut into a desired shape as shown in FIGS. 4 and 5 [Step (Di)].

Electrode connector 1 obtained in the above step (A+B+C+D)
The heat-sealed portion of No. 2, that is, the conductive portion 6, had perfect conductivity, and the variation in resistance value was within ±5 coefficients.

Moreover, the adhesive strength at this time was sufficient.

The pitch of the conductive portions 6 was 1.15 yxm. In addition,
Polyamide resin, ethylene vinyl acetate copolymer resin,
Substantially similar results were obtained using a thermoplastic polymer binder such as polymethyl methacrylate resin.

On the other hand, almost the same results can be obtained by using a flexible substrate made of vinyl chloride resin, polypropylene resin, polyamideimide resin, polyurethane resin, etc., in place of the chloroprene rubber plate 1. Ta.

Example 2 35% by weight of graphite powder and 5% by weight of carbon black powder in (a), 20% by weight of synthetic rubber in (b) in Example 1, and terpene resin as a tackifier in (d) (
Product name: Quinton U-185) 1 manufactured by Nippon Zeon Co., Ltd.
0 weight ratio and 30 weight ratio of isophorone from the above (c) were mixed and uniformly dissolved and dispersed, with an apparent specific gravity of 1.1 and viscosity of 4.
A conductive suspension composition (a+b+c+d) of 00 poise was prepared.

Next, using this, it is coated on one entire surface of a 0.5-thick chloroprene rubber plate 1 to a thickness of 200 μm by screen printing [Step (A)].

This coated surface was dried at a temperature of 100° C. for about 10 minutes [Step (B)].

Next, the conductive heat-sealing composition-coated chloroprene rubber obtained in step (A+B) was stacked in several layers, and a chloroprene rubber plate was placed on the top layer as shown in FIG.
They were overlapped and thermocompression bonded by applying a pressure of 5 kg/cm3 and a high frequency of 700 KH2 [Step (C)].

Next, this multilayer molded body was cut into a desired shape as shown in FIGS. 4 and 5 [Step (D)].

Electrode connector 1 obtained in the above step (A+B+C+D)
The heat-sealed portion of No. 2, that is, the conductive portion 6, had perfect conductivity, and the variation in resistance value was within ±5%.

Moreover, the adhesive strength at this time was sufficient.

The pitch of the conductive portions 6 was 0.65 mm.

In addition, substantially the same results were obtained even when a thermoplastic polymer binder such as polyamide resin, ethylene vinyl acetate copolymer resin, polymethyl methacrylate resin, etc. was used in place of the neoprene synthetic rubber (b).

Example 3 Silver powder 38-layer of the above (a), (b) of the above Example 1
Synthetic rubber 19 weight ratio, solvent (c) above isophorone 43
A conductive suspension composition (a+
b+c) was prepared.

Next, this is applied to one entire surface of a polyester resin film substrate 1 with a thickness of 0.1 mm to a thickness of 50 μm by screen printing method [Step (A)]
.

This coated surface was dried at a temperature of 100° C. for about 5 minutes [Step (B)].

Next, the conductive heat-sealing composition-coated polyester resin film obtained in the step (A-B) was stacked in several layers, and the polyester resin film was further stacked on the top layer, and a pressure of 5 kg/cm2 was applied. In addition, thermocompression bonding was performed by applying a high frequency of 500KH2 [Step (C)].

Next, this multilayer molded body was cut into a desired shape as shown in FIGS. 4 and 5 (Step CD).

Electrode connector 1 obtained in the above step (A+B+C+D)
The heat-sealed portion of No. 2, that is, the conductive portion 6, had perfect conductivity, and the variation in resistance value was within ±5 coefficients.

Moreover, the adhesive strength at this time was sufficient.

The pitch of the conductive portions 6 was 0.15 mm.

In addition, substantially the same results were obtained even when a thermoplastic polymer binder such as a polyamide resin, ethylene vinyl acetate copolymer resin, or polymethylene methacrylate resin was used in place of the neoprene synthetic rubber (b).

On the other hand, substantially the same results can be obtained by using a plate or film made of natural rubber, synthetic rubber, vinyl chloride resin, polypropylene resin, polyamideimide resin, polyurethane resin, etc. in place of the polyester resin film substrate 1. Ta.

Example 4 35% by weight of graphite powder and 5% by weight of carbon black powder in the above (a), 25% by weight of ethylene vinyl acetate copolymer resin manufactured by Showa Kobunshi Kagaku Co., Ltd. under the trade name Vinyroll 5E-L, Solvent (c) isophorone 3
5% by weight was mixed and stirred to uniformly dissolve and disperse the resulting conductive suspension composition (a
+b+c) was prepared.

Next, using this, the thickness is 0.087+! 7+1 Polyester resin film 1 is coated and adhered to a thickness of 25 μm by screen printing on one entire surface of the polyester resin film 1 [Step (A)
)].

This coated surface was dried at a temperature of 100° C. for about 10 minutes [Step (B)].

Next, the conductive heat-sealing composition-coated polyester film obtained in the above steps (A and B) was stacked in several layers, and a polyester film was further stacked on the top layer as shown in FIG. /cm2 pressure and 500
Thermocompression bonding was performed by applying KHz high frequency [Step (C)]
.

Next, this multilayer molded body was cut into a desired shape as shown in FIGS. 4 and 5 [Step (D)].

The heat-sealed portion of the electrode connector 12 obtained in the step (A+B+C+D), that is, the conductive portion 6, had perfect conductivity, and the variation in resistance value was within ±5%.

Moreover, the adhesive strength at this time was sufficient.

The pitch of the conductive portions 6 was 0.1 mm. In addition, substantially the same results were obtained when a thermoplastic polymer binder such as neoprene synthetic rubber, polyamide resin, or polymethyl methacrylate resin was used instead of the ethylene vinyl acetate copolymer resin.

[Brief explanation of the drawing]

FIG. 1 is an enlarged perspective view showing a flexible insulating film substrate (Step B) coated with a conductive heat-sealing composition according to an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. FIG. 4 is a perspective view illustrating the process of high-frequency induction heating and pressure compression in the lamination molding process (C process) of an embodiment of the present invention, and FIG. FIG. 5 is an enlarged perspective view of the connector 12 obtained by cutting the multilayer molded body 5 (step D), and FIG.
FIG. 1 is an enlarged perspective view schematically showing a case in which the present invention is applied to No. 1; DESCRIPTION OF SYMBOLS 1...Flexible insulating film substrate, 2...Dry coated layer of conductive suspension composition, 3...Joining surface, 4...Dielectric heating device and compression press using high frequency generation, 5...Multilayer molded body , 6... Conductive part, 7... Insulating part, 8... Insulating plate such as a glass plate, 9... End edge of insulating plate 8, 10... Liquid crystal part, 11... Electrode of liquid crystal part 9, 12 ...Connector, A
...The horizontal dimension (length dimension) of the flexible insulating substrate 1 is 10 to 60
0mm, B...Vertical dimension of flexible insulating substrate 1 10-600
mm, C...The thickness of the flexible insulating substrate 1 is 0.01 to 3.
0, D...The thickness of the coating layer 2 of the conductive suspension composition is 0.
01~0.5mm, E... Vertical dimension of connector 12 1~
10mm, F... Horizontal dimension of connector 12 1 to 10mm
, G...The length of the connector 12 is 10 to 500 mm, P...
...Pressure (compression press).

Claims (1)

[Scope of Claims] 1(a) Fine powder 10 to 70% by weight consisting of one or more of graphite powder with a particle size of 0.1 to 40μ, silver powder, and carbon black with a particle size of 0.1μ or less; (b) a thermoplastic polymer binder of 10 to 65% by weight of one or more of chloroprene synthetic rubber, polyamide resin, ethylene vinyl acetate copolymer resin, and polymethyl methacrylate resin, and (c) isophorone, dipentene. , acetophenone,
Chlortoluene, diethylcarpitol, toluene 1
The apparent specific gravity of 1.1-1.7 and viscosity of 100-100 when mixed with 25-60% by weight of a seed or two or more solvents and dissolved and dispersed.
(A) applying a conductive heat-sealing composition consisting of a 500 poise suspension (a+b+c) on at least one entire surface of a flexible insulating film substrate having desired dimensions by screen printing or gravure printing; The process of drying the print coated surface formed in the print coating process (A) at a temperature of 50 to 150°C for 5 to 15 minutes, and the adhesion of the conductive heat seal composition obtained in the drying process (B) A desired number of flexible insulating film substrates are deposited in layers with the coated surfaces alternated, and a pressure of 1 to 30 kg/cm is applied vertically, and a high frequency of 100 KH to 10 MHz is applied to seal the conductive heat seal composition. A process of heat reactivation, lamination molding of the flexible insulating film substrates together, and removal after cooling (0); A method for manufacturing an electrode connector for a liquid crystal display tube, characterized by comprising a step (A+B+C+D) of combining with a step (D) of cutting a multilayer molded body into a desired shape and size. 2(a) graphite powder with a particle size of 0.1 to 40μ; 10 to 70% by weight of fine powder consisting of one or more types of silver powder and carbon black with a particle size of 0.1 μ or less, and (b) chloroprene synthetic rubber, polyamide resin, ethylene vinyl acetate copolymer resin, polyester One or more thermoplastic polymer binders of 10 to 65% by weight of methyl methacrylate resin, and (C) isophorone, dipentene, acetophenone,
Chlortoluene, diethylcarpitol, toluene 1
25 to 60% by weight of a species or two or more solvents, and further (d
) One or more types of terpene resin, phenolic resin, and aliphatic hydrocarbon resin are mixed with 0.1 to 20% by weight of a tackifier, and the apparent specific gravity is 1.1 to 1.
．． 7. Suspension with a viscosity of 100 to 500 poise (a+b+c
A step of applying the conductive heat-sealing composition consisting of +d) by clean printing or gravure printing on at least one entire surface of a flexible insulating film substrate having desired dimensions (
4), a step of drying the printed coating surface formed in the printing coating step (support) at a temperature of 50 to 150°C for 5 to 15 minutes, and the conductivity obtained in mB under drying. A desired number of flexible insulating film substrates coated with the heat sealing composition are deposited in layers with the coated surfaces alternated, and a pressure of 1 to 30 kg/cm3 is applied vertically, and a high frequency of 100 KH2 to 10 MHz is applied to the conductive film. (a step of thermally reactivating the conductive heat-sealing composition, integrally laminating the flexible insulating film substrate, and decompressing it after cooling); (A+B
1. A method for manufacturing an electrode connector for a liquid crystal display tube, characterized by comprising: