KR101679550B1 - A method for attaching the substrates by using hybrid-resin - Google Patents

A method for attaching the substrates by using hybrid-resin Download PDF

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Publication number
KR101679550B1
KR101679550B1 KR1020150056637A KR20150056637A KR101679550B1 KR 101679550 B1 KR101679550 B1 KR 101679550B1 KR 1020150056637 A KR1020150056637 A KR 1020150056637A KR 20150056637 A KR20150056637 A KR 20150056637A KR 101679550 B1 KR101679550 B1 KR 101679550B1
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KR
South Korea
Prior art keywords
oca
hybrid resin
viscosity material
attaching
solution
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KR1020150056637A
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Korean (ko)
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KR20160125762A (en
Inventor
안성룡
황세한
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안성룡
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Priority to KR1020150056637A priority Critical patent/KR101679550B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin

Abstract

The present invention relates to a hybrid resin which can prevent the occurrence of pores caused by a black matrix pattern in a process of attaching a joining resin to a bonded substrate in a shape corresponding to a shape of a black matrix pattern formed on a display panel, A method of directly bonding a window glass using a hybrid resin according to the present invention comprises the steps of 1) applying the OCA solution 100 in an unequal manner to the junction surface of the panel 5 in a shape corresponding to the BM shape step; 2) bonding and curing the non-uniformly coated OCA solution 100 to form a hybrid resin 100A having an adhesive force; 3) attaching a window glass having a BM pattern on the upper surface of the hybrid resin 100A.

Description

METHOD FOR ATTACHING THE SUBSTRATES BY USING HYBRID-RESIN BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a direct bonding method using a hybrid resin, and more particularly, to a direct bonding method using a hybrid resin. More particularly, the present invention relates to a direct bonding method using a hybrid resin, The present invention relates to a direct bonding method using a hybrid resin.

Conventionally, a method of attaching each substrate or film constituting a touch panel using an OCA film and attaching the same to a display panel is used.

A method of cementing using the OCA film will be briefly described as follows. First, as shown in Figs. 1A and 1B, the OCA-forming resin 2 is applied on the base film 1 to a predetermined thickness. Then, as shown in Fig. 1C, the coated OCA-forming resin 2 is irradiated with ultraviolet rays to be hardened. At this time, the hardened OCA-forming resin (2) is cured to such an extent that adhesive strength is maintained.

Then, the upper protective film 3 is adhered to the hardened OCA layer 2, as shown in Fig. 1D. This upper protective film 3 prevents the OCA layer 2 from being contaminated or damaged. As shown in FIG. 1E, the OCA film thus formed is used in a state where the upper protective film 3 is peeled and removed at the time of use.

That is, when the upper protective film 3 is peeled and removed, as shown in FIG. 1F, the surface from which the protective film has been removed is attached to the substrate 4 on which the laminating operation is to be performed. Then, as shown in Fig. 1G, the base film 1 attached to the lower part of the OCA layer 2 is also peeled off. Then, the OCA layer 2 having an adhesive force is exposed, and this surface is attached to another to-be-bonded substrate 5 as shown in Fig. 1 (h) .

However, as described above, the conventional bonding method using the OCA film has a problem that the OCA film production process and the adhesion process are very complicated and the process time is long.

Therefore, in order to solve such a problem, a method of directly forming an OCA layer on a bonded substrate 5 as a substrate to be bonded and proceeding a cementing operation has been proposed. This method starts with a step of applying the OCA-forming resin 10 on one upper surface of the two bonded substrates 4 and 5 to be cemented, to a uniform thickness, as shown in FIG. 2A.

Then, as shown in FIG. 2B, a process of irradiating ultraviolet rays onto the coated OCA-forming resin 10 to cure is performed. In this process, the OCA-forming resin 10 has an adhesive force similar to that of the OCA film Cure it to have. This may be called 'adhesive hardening'.

The cementing operation can be completed by a simple process in which the remaining adsorbed substrate 4 is adhered to the OCA layer 10A with the adhesive cured.

2D, when a black matrix (BM) pattern is formed on one of the substrates 4 and 5 to be affixed, the thickness of the black matrix (BM) pattern Therefore, there is a problem that the floating portion P is not formed. This is a problem that necessarily arises because the black matrix (BM) pattern has a considerable thickness of about 20 to 40 mu m.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a black matrix pattern, To provide a direct bonding method using a hybrid resin.

According to the present invention, there is provided a method for directly bonding a window glass using a hybrid resin, comprising the steps of: (1) applying an OCA solution (100) uniformly on a bonding surface of the panel (5) step; 2) bonding and curing the non-uniformly coated OCA solution 100 to form a hybrid resin 100A having an adhesive force; 3) attaching a window glass having a BM pattern on the upper surface of the hybrid resin 100A.

In the step 1) of the present invention, it is preferable to apply the OCA solution to the edge portion of the panel at a lower total thickness of the BM pattern.

In the step 1) of the present invention, it is preferable to apply the OCA solution by processing both ends of the injection slit portion of the slit nozzle for applying the OCA solution so as to have a spread gradient.

According to the present invention, a simple process of directly forming an OCA layer on a panel and attaching a window panel can be performed, and an OCA layer can be uniformly formed with a thickness consistent with a BM pattern, .

FIG. 1 is a view showing a process of attaching an ITO film and a panel using a conventional OCA film.
FIG. 2 is a view showing a cementation process of a direct bonding method for an ITO film using a hybrid resin.
FIG. 3 is a view showing each step of a method of sticking a substrate using a hybrid resin according to an embodiment of the present invention.
4 is a perspective view showing a structure of a slit nozzle coating system for applying a high viscosity OCA solution according to an embodiment of the present invention.
5 is a rear view of a slit nozzle according to an embodiment of the present invention.
6 is a view showing an inner surface of a front side block according to an embodiment of the present invention.

Hereinafter, a specific embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The method of directly bonding a window glass using the hybrid resin according to the present embodiment starts with the step of applying the OCA solution 20 at an unequal thickness to the joint surface of the panel 5, as shown in FIG. In this step, the OCA solution 20 is applied on the joint surface of the panel 5 in a uniform thickness, but on the edge portion of the panel 5 which is in contact with the BM, the OCA solution 20 ) Is preferably applied. The coating of the OCA solution in an unequal thickness is intended to prevent step or pore from being generated by the BM pattern in the subsequent cementation step.

For example, the OCA solution 20 may be applied by using the high viscosity OCA solution slit nozzle coating system 100 as shown in FIG. 4, have.

4 to 6, the slit nozzle coating system 100 for coating a high-viscosity material includes a slit nozzle 110, a high-viscosity material supply hole 120, a uniform diffusion unit 140, a pressure adjusting unit 150, And a jetting slit portion 160. [0035]

4, the slit nozzle 110 may be formed by sequentially fastening the front block 112, the spacing member 116, and the rear block 114 using the fastening means 130 . The slit nozzle 110 is a component for applying a high-viscosity material supplied from the outside in a slit shape, and detailed components for the function are formed inside.

That is, a high viscosity material supply hole 120, a uniform diffusion portion 140, a pressure adjusting portion 150, and a slit nozzle portion 160 are formed in the front side block 112 and the rear side block 114 forming the slit nozzle 110 Respectively.

As shown in FIG. 6, the high-viscosity material supply hole 120 is formed by spacing a plurality of upper and lower portions of the side surface of the front block 112 in the thickness direction, And flows into the slit nozzle (110).

6, the uniform diffusion unit 140 is formed by symmetrically embossing the inner surface of the front block 112 and the inner surface of the rear block 114, and the upper end of each of the high viscosity material supply holes 120 ), And is a component for uniformly diffusing the high-viscosity material supplied from the outside.

That is, in the present embodiment, the uniform diffusion unit 140 is a component that uniformly diffuses a high-viscosity material supplied from the outside without generating bubbles. In order to prevent bubbles from occurring, as shown in FIG. 6, Sectional area of each point of the uniform diffusion portion 140 is preferably smaller than or equal to the upper side sectional area thereof. That is, as shown in FIG. 6, the side surface cross-sectional shape of the uniform diffusion portion 140 has a shape that becomes narrower downward as a whole, and the cross-sectional shape of the uniform diffusion portion 140 has a length Sectional shape so that the high-viscosity material can be uniformly diffused while moving downward.

At this time, the vertical cross-sectional area of the uniform diffusion portion 140 has a shape that the circular shape becomes longer toward the lower side, and the area of each cross-section has a smaller or same structure as going downward (S1? S2? S3). Therefore, even when the high-viscosity material supplied by the high-viscosity material introduction unit 120 is diffused, the high-viscosity material in the uniform diffusion unit 140 is not filled up and empty space is not formed. Accordingly, the high-viscosity material is supplied to the upper end of the uniform diffusion portion 140, and diffused to the lower side of the uniform diffusion portion 140. In this state, all the spaces of the uniform diffusion portion 140 are completely filled, .

6, the uniform diffusion portion 140 is formed to have the same number as that of the high-viscosity material introduction portion 120, and the lower end portion of each uniform diffusion portion 140 is connected to the pressure adjusting portion 150), they are combined to form a space.

6, the pressure adjusting unit 150 is formed by embossing the inner surface of the front block 112 and the inner surface of the rear block 114 in a symmetrical shape, And uniformly adjusts the pressure of the highly viscous substance diffused by each of the uniform diffusion units 140. The high viscosity material is uniformly diffused to all the regions by the uniform diffusion portion 140. However, the pressure of the high-viscosity material is uniformly diffused to all the regions by the uniform diffusion portion 140, Can be lowered.

Accordingly, the pressure of the high-viscosity material diffused by the uniform diffusion unit 140 is further uniformly adjusted by passing through the pressure adjusting unit 150. In particular, the both end regions 152 and 154 are arranged in the And the pressure regulating part 150 are gathered inward to compensate for the lowering of the pressure at both ends.

As shown in FIG. 6, the injection slit 160 is formed to communicate with the lower end of the pressure regulator 150, and injects the viscous high-viscosity material to the outside. The injection slit part 160 is a path through which a high viscosity substance is actually injected to the outside, and the gap between the injection slit part 160 is formed very precisely. For this, in the present embodiment, as shown in FIG. 5, a spacer 116 is inserted between the front block 112 and the rear block 114 to fasten them together. Therefore, the gap of the injection slit part 160 is formed by the distance member 116 and the same gap is formed over the entire area of the injection slit part 160.

As shown in FIG. 6, a spread jetting section 162 is formed at both ends of the jetting slit section 160. The spread jetting section 162 is formed so as to be inclined outward so that the high-viscosity material to be jetted is thinly coated as compared with other portions. At this time, it is possible to adjust the thickness and width to be applied by adjusting the tilting angle of the spread jetting section 162.

A plurality of fastening means 130 for fastening the front block 112 and the rear block 114 are installed on the slit nozzle 110 according to the present embodiment. At this time, a fastening hole 132 for mounting the fastening means 130 is formed on the front block 112 and the rear block 114, and the plurality of fastening holes 132 are formed as shown in FIGS. 4 to 6 Not only the outer edge of the front block 112 and the rear block 114 but also a space between the inner center portion and a plurality of uniform diffusion portions 140 are formed.

Therefore, the fastening means 130 is installed near the lower injection slit portion 160 as shown in FIG. 5, so that the fastening means 130 is structured to receive a sufficient force by the plurality of fastening means 130. Therefore, in the slit nozzle 100 according to the present embodiment, such a phenomenon that the slit is opened by excessive pressure at the center portion of the nozzle as in the conventional slit nozzle 1 is prevented at the origin. Therefore, it is not necessary to separately install a slit gap compensating device.

3, the slit nozzle coating system 100 for coating a high-viscosity material according to the present embodiment includes a high-viscosity material supply unit (not shown) for supplying a high-viscosity material to the plurality of high- 170). In other words, a system for supplying a high viscosity material to each of the plurality of high viscosity material supply holes 120 at the same pressure may be provided. A valve capable of precisely controlling the pressure of each high viscosity material supply hole 120 may be provided, (Not shown), a feed line 171, a branch 172, a separation line 173, and a sub-branch 174, as shown in Figure 3, have.

Next, the branch line 173 is a component connected to the branching unit 172 and coupled to the sub-branching unit 174 with the same line length, as shown in FIG. Accordingly, the same amount of high-viscosity material is supplied to each sub-branch 174 by the four branch lines 173 at the same supply rate. For this purpose, each of the branch lines 173 has the same length, and the bent portion 175 necessarily formed has a curved shape. Therefore, the flow of the high-viscosity material passing through the branch line 173 is not disturbed and bubbles are not generated during movement.

4, the sub branching part 174 is connected to the end of each branching line 173, and branches the supplied high-viscosity material into two parts and supplies it to the high-viscosity material supply hole 120 Supply components. That is, the sub-branch 174 divides the high-viscosity material supplied by one branch line 173 into two halves equally and supplies the same to the high-viscosity material supply hole 120. Therefore, the sub-branch 174 is installed in close contact with the front block 112 and the outlet of the sub-branch 174 is connected to the high-viscosity material supply hole 120.

Next, as shown in FIG. 3B, the step of making the hybrid resin 20A having the adhesive force by adhering and hardening the non-uniformly coated OCA solution 20 proceeds. In this step, the OCA solution is irradiated with ultraviolet rays to cure, and the adhesive is cured in a state in which the adhesive performance is maintained.

Next, as shown in FIG. 3C, the step of attaching the window glass 4 having BM pattern on the upper surface of the hybrid resin 20A is proceeded. In this case, when the window glass 4 is aligned with the precisely adhered position, the OCA pattern 20A itself is formed so as to coincide with the BM pattern shape. Therefore, as shown in FIG. 3C, Are tightly joined together.

100: A slit nozzle coating system for coating a high-viscosity material according to an embodiment of the present invention
110; Slit nozzle 120: high viscosity material supply hole
130: fastening means 140:
150: pressure adjusting part 160: injection slit part

Claims (3)

1) non-uniformly applying the OCA solution 100 in a shape corresponding to the BM shape on the joint surface of the panel 5;
2) bonding and curing the non-uniformly coated OCA solution 100 to form a hybrid resin 100A having an adhesive force;
3) attaching a window glass having a BM pattern on the upper surface of the hybrid resin 100A,
In the step 1)
And applying an OCA solution as low as the BM pattern thickness on the edge of the panel to the entire coating thickness. delete 2. The method according to claim 1, wherein in step 1)
Wherein the OCA solution is applied to both ends of the injection slit portion of the coating slit nozzle for applying the OCA solution so as to have a spreading gradient, thereby applying the OCA solution.
KR1020150056637A 2015-04-22 2015-04-22 A method for attaching the substrates by using hybrid-resin KR101679550B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190103712A (en) 2018-02-28 2019-09-05 (주)에이치아이디 Bonding apparatus and Method using deformation and low vacuum

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009003067A (en) * 2007-06-20 2009-01-08 Seiko Epson Corp Method of manufacturing electrooptical device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101449621B1 (en) * 2012-11-19 2014-10-13 삼성디스플레이 주식회사 Display device and manufacturing method thereof
KR20140102946A (en) * 2013-02-15 2014-08-25 삼성디스플레이 주식회사 Display device and manufacturing method thereof
KR101499450B1 (en) * 2013-06-10 2015-03-06 안성룡 The method for manufacturing the panel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009003067A (en) * 2007-06-20 2009-01-08 Seiko Epson Corp Method of manufacturing electrooptical device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190103712A (en) 2018-02-28 2019-09-05 (주)에이치아이디 Bonding apparatus and Method using deformation and low vacuum

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