TWI616412B - Method for manufacturing seal structure and member for liquid crystal display panel - Google Patents

Abstract

The present invention relates to a sealing structure, which is used for manufacturing a member for a liquid crystal display panel, and includes a first laminated body having a first glass substrate having a thickness of 0.3 mm or less, and the first glass substrate A first support structure to be peeledly attached; a second laminated body having a second glass substrate having a thickness of 0.3 mm or less and a second support structure to be peelably attached to the second glass substrate; a sealing portion And is provided between the first laminated body and the second laminated body so as to surround the formation area of the liquid crystal display panel; and an adhering section, which is in the form of an arbitrary structure, and is connected to the first laminated body and the second laminated body The first glass substrate and the second glass substrate are opposite to each other and satisfy the following relational expressions (1) and (2): Equation (1) {(X1 × Y1) + (Z1 × W1)} / (A1 × B1)> 1, formula (2) {(X2 × Y2) + (Z2 × W2)} / (A2 × B2)> 1, (in formula (1), X1 represents the sealing portion and the first the peel strength between the glass substrate (N / mm), Y1 represents the sealing portion and the total contact area (mm ²⁾ of the first glass substrate 1, Z1 indicates the first portion and then the above-described glass substrate 1 The peel strength (N / mm), W1 indicating that the next portion of the total contact area (mm ²⁾ of the first glass substrate 1, A1 represents the peel strength between the first glass substrate 1 and the first support structure (N / mm), B1 represents the total contact area (mm ² ) between the first glass substrate and the first support structure, and in formula (2), X2 represents the peel strength between the sealing portion and the second glass substrate ( N / mm), Y2 represents the total contact area (mm ² ) between the sealing portion and the second glass substrate, Z2 represents the peel strength (N / mm) between the bonding portion and the second glass substrate, and W2 represents the above The total contact area (mm ² ) between the bonding portion and the second glass substrate, A2 represents the peel strength (N / mm) between the second glass substrate and the second support structure, and B2 represents the second glass substrate and the second glass substrate. the total contact area of the second support structure (mm ^2); when Furthermore, in the case of the above section is not present then, set (Z1 × W1) = 0 and (Z2 × W2) = 0) .

Description

Method for manufacturing seal structure and member for liquid crystal display panel

The present invention relates to a sealing structure, and more particularly, to a sealing structure used in manufacturing a member for a liquid crystal display panel. The present invention also relates to a method for manufacturing a member for a liquid crystal display panel using the sealed structure.

In recent years, thinner and lighter electronic devices such as liquid crystal display panels have been developed, and thinner glass substrates used in these electronic devices have been continuously promoted. However, the thinning of the glass substrate causes a reduction in the strength of the glass substrate, which reduces the operability of the glass substrate in the manufacturing steps of the electronic device.

Therefore, previously, the following method was adopted: After forming various elements and the like using a glass substrate thicker than the final plate thickness, the glass substrate is thinned by a chemical etching process. However, according to this method, when, for example, the thickness of a glass substrate is changed from a 0.7 mm thin plate to 0.2 mm or 0.1 mm, it is necessary to remove most of the material of the original glass substrate with an etching solution, in terms of productivity or the use of raw materials. Not necessarily better from a point of view.

In addition, when the glass substrate is thinned by chemical etching, when there are fine scratches on the surface of the glass substrate, there are cases where fine depressions (corrosion pits) starting from the scratches are formed by the etching process, It becomes an optical defect.

In order to cope with the above-mentioned problems, a method has been proposed in which a thin glass substrate having a final plate thickness is used from the beginning, and a glass substrate is laminated on a supporting structure also called a reinforcing plate to form a laminated body, and the laminated layer After forming various elements and the like on the glass substrate, the support structure is peeled from the glass substrate (for example, refer to Patent Document 1). Support structure The body includes a support plate and an adhesive layer fixed on the support plate, and the glass substrate is peelably adhered by the adhesive layer. Finally, the support structure is peeled from the glass substrate, and a new glass substrate is laminated on the peeled support structure and reused.

[Prior technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 8-86993

The manufacturing method of the member for liquid crystal display panels using the said laminated body is performed as follows, for example. First, prepare a pair of laminated bodies, and if necessary, form a thin film transistor (TFT) or a color filter (CF) in one or two or more formation areas of the respective glass substrates to become a liquid crystal display panel. Further, a sealing material is applied on a glass substrate so as to surround each formation region that becomes a liquid crystal display panel. Then, the sealing material is laminated 1 to the laminated body, and the sealing material is hardened to form a sealing portion, thereby obtaining a sealed structure. Thereafter, the support structure is peeled from each of the glass substrates of the sealing structure, and a member for a liquid crystal display panel having one or two or more regions that become a liquid crystal display panel is manufactured.

However, in the case of the above method, when the support structure is peeled from the self-sealing structure, it may not necessarily be peeled off between the member for the liquid crystal display panel and the support structure, but inside the member for the LCD panel, specifically In other words, the glass substrate is peeled from the sealing portion, and damage to the glass substrate may occur such as cracking. If peeling of a sealing portion or damage to a glass substrate occurs in a member for a liquid crystal display panel, the member for a liquid crystal display panel cannot be used in the manufacture of a liquid crystal display panel.

The present invention has been made in order to solve the above-mentioned problems, and an object thereof is to provide a sealing structure used to manufacture a member for a liquid crystal display panel, which can suppress peeling of a sealing portion or damage to a glass substrate when peeling a support structure.

The present inventors have studied the problems of the prior art and found that the above-mentioned problems can be solved by the following configuration, thereby completing the present invention.

That is, in order to achieve the above object, a first aspect of the present invention is a sealing structure, which is used for manufacturing a member for a liquid crystal display panel, and includes a first laminated body having a thickness of 0.3 mm or less. 1 glass substrate and first support structure releasably bonded to the first glass substrate; second laminated body having a second glass substrate having a thickness of 0.3 mm or less and releasably bonded to the second glass substrate A second supporting structure; a sealing portion provided between the first laminated body and the second laminated body so as to surround the formation area of the liquid crystal display panel; and a bonding portion following the first laminated layer in an arbitrary configuration. And the second laminated body; and the first glass substrate and the second glass substrate face each other, and satisfy the following relational expressions (1) and (2).

Formula (1) {(X1 × Y1) + (Z1 × W1)} / (A1 × B1)> 1

Formula (2) {(X2 × Y2) + (Z2 × W2)} / (A2 × B2)> 1

(In formula (1), X1 represents the peel strength (N / mm) between the sealing portion and the first glass substrate, Y1 represents the total contact area (mm ² ) between the sealing portion and the first glass substrate, and Z1 represents the bonding portion and Peel strength (N / mm) between the first glass substrate, W1 represents the total contact area (mm ² ) between the bonding portion and the first glass substrate, and A1 represents the peel strength between the first glass substrate and the first support structure. (N / mm), B1 represents the total contact area (mm ² ) between the first glass substrate and the first support structure, and in formula (2), X2 represents the peel strength between the sealing portion and the second glass substrate (N / mm), Y2 indicates the total contact area (mm ² ) between the sealing portion and the second glass substrate, Z2 indicates the peel strength (N / mm) between the bonding portion and the second glass substrate, and W2 indicates the bonding portion and the second glass substrate. The total contact area (mm ² ), A2 represents the peel strength (N / mm) between the second glass substrate and the second support structure, and B2 represents the total contact area (mm) of the second glass substrate and the second support structure ² ); Furthermore, when there is no bonding part, set (Z1 × W1) = 0 and (Z2 × W2) = 0)

In the first aspect, it is preferable to include a plurality of sealing portions.

In the first aspect, it is preferable to include a bonding portion, and the bonding portion is provided linearly along the sealing portion.

In the first aspect, it is preferable that the bonding portion is included, and the bonding portion is provided so as to surround the entirety of the plurality of sealing portions.

In the first aspect, it is preferable to include a bonding portion, and the bonding portion is provided so as to surround each of the plurality of sealing portions.

In the first aspect, the first glass substrate and the second glass substrate preferably have a size of 730 mm in length × 920 mm in width.

In the first aspect, it is preferable that the first glass substrate and / or the second glass substrate be made of alkali-free glass.

In the first aspect, the glass plate is preferably composed of an alkali-free glass containing the following components in terms of mass percentage based on an oxide.

SiO ₂ : 50 ~ 66%

Al ₂ O ₃ : 10.5 ~ 24%

B ₂ O ₃ : 0 ~ 12%

MgO: 0 ~ 8%

CaO: 0 ~ 14.5%

SrO: 0 ~ 24%

BaO: 0 ~ 13.5%

MgO + CaO + SrO + BaO: 9 ~ 29.5%

ZnO: 0 ~ 5%

In the first aspect, the glass plate is preferably composed of an alkali-free glass containing the following components in terms of mass percentage based on an oxide.

SiO ₂ : 58 ~ 66%

Al ₂ O ₃ : 15 ~ 22%

B ₂ O ₃ : 5 ~ 12%

MgO: 0 ~ 8%

CaO: 0 ~ 9%

SrO: 3 ~ 12.5%

BaO: 0 ~ 2%

MgO + CaO + SrO + BaO: 9 ~ 18%

ZnO: 0 ~ 2%

A second aspect of the present invention is a method for manufacturing a member for a liquid crystal display panel, which includes a step of peeling off the first support structure and the second support structure from the first aspect.

In the second aspect, in the peeling step, the peeling of the first support structure and the second support structure from the self-sealing structure is preferably performed slowly at one end of the self-sealing structure.

According to the present invention, it is possible to provide a sealing structure that can suppress peeling of a sealing portion or damage to a glass substrate during peeling of a support structure and is used for manufacturing a member for a liquid crystal display panel.

10, 200, 300, 400‧‧‧ sealed structures

11‧‧‧The first laminated body

12‧‧‧Second layered body

13‧‧‧Sealing Department

14‧‧‧ Follow-up

20‧‧‧Members for liquid crystal display panels

111‧‧‧1st glass substrate

112‧‧‧The first supporting structure

113‧‧‧The first support plate

114‧‧‧The first adhesive layer

121‧‧‧ 2nd glass substrate

122‧‧‧ 2nd supporting structure

123‧‧‧Second support plate

124‧‧‧Second adhesive layer

L‧‧‧ strip boundary

Fig. 1 is a plan view showing a first embodiment of a sealing structure according to the present invention.

Fig. 2 is a sectional view taken along the line A-A of the sealing structure shown in Fig. 1.

FIG. 3 is an explanatory diagram illustrating a peeling method of peeling a first support structure from the sealing structure shown in FIG. 1.

Fig. 4 is a plan view showing a second embodiment of the sealing structure according to the present invention.

Fig. 5 is a sectional view taken along the line A-A of the sealing structure shown in Fig. 4.

FIG. 6 is an explanatory diagram illustrating a peeling method of peeling a first support structure from the sealing structure shown in FIG. 4.

FIG. 7 is a plan view showing a modified example of the sealing structure.

FIG. 8 is a plan view showing another modified example of the sealing structure.

Hereinafter, embodiments of the present invention will be described.

In addition, aspects satisfying the relationship of the following formulae (1) and (2) are cited as characteristic points of the present invention. The details of the formulas (1) and (2) will be described later.

<First Embodiment>

Hereinafter, a first embodiment of the seal structure will be specifically described with reference to the drawings.

1 and 2 are a plan view and an A-A cross-sectional view showing an example of the first embodiment of the sealed structure.

The sealing structure 10 is used for manufacturing the member 20 for a liquid crystal display panel, and as shown in FIG. 2, it has a part which becomes the member 20 for a liquid crystal display panel. The sealing structure 10 includes a first laminated body 11, a second laminated body 12, and a sealing portion 13. The sealing structure 10 does not include a bonding portion.

The first laminated body 11 and the second laminated body 12 are arranged facing each other with a gap therebetween. The sealing portion 13 is provided between the first laminated body 11 and the second laminated body 12 and is provided in, for example, a plurality of frames so as to surround, for example, a formation area of a liquid crystal display panel. In the sealing structure 10 shown in FIG. 1, six frame-shaped sealing portions 13 are provided corresponding to the six formation regions.

The first laminated body 11 includes a first glass substrate 111 and a first support structure 112 that is releasably attached to the first glass substrate 111. The first support structure 112 further includes a first support plate 113 and a first adhesive layer 114 provided on a main surface of the first support plate 113. The first support structure 112 is releasably bonded to the first glass substrate 111 via the first adhesive layer 114.

The second laminated body 12 includes a second glass substrate 121 and a second support structure 122 that is releasably attached to the second glass substrate 121. The second support structure 122 further includes a second support plate 123 and a second adhesive layer 124 provided on one main surface of the second support plate 123. The second support structure 122 is releasably bonded to the second glass substrate 121 via the second adhesive layer 124.

In addition, the portions of the seal structure 10 other than the first support structure 112 and the second support structure 122, that is, the first glass substrate 111, the second glass substrate 121, and the glass structure are disposed thereon. The sealing portion 13 between the two parts becomes a member 20 for a liquid crystal display panel.

The first laminated body 11 and the second laminated body 12 are arranged so that the first glass substrate 111 and the second glass substrate 121 face each other. An area for forming a liquid crystal display panel on the surfaces of the first glass substrate 111 and the second glass substrate 121 is not shown, but an insulating film, a transparent electrode film, and a thin-film transistor are formed according to the liquid crystal display method and as needed. TFT), thin-film diode (TFD), and other switching elements, color filters (CF), and so on.

The sealing portion 13 is provided between the first multilayer body 11 and the second multilayer body 12, and is arranged in a frame shape so as to surround the formation area of the liquid crystal display panel, and then the first multilayer body 11 and the second multilayer body 12. The seal portion 13 is formed according to the number of formation regions. As shown in the figure, when there are a plurality of formation regions, a plurality of seal portions are formed. When the formation region is only one, only one is formed.

The sealing portion 13 may be filled with liquid crystal or not. In the case of manufacturing by the liquid crystal dropping and bonding method, the inside of the sealing portion 13 in the sealing structure 10 is filled with liquid crystal, and in order to maintain the internal liquid crystal, the shape of each sealing portion 13 is set to have no opening. The continuous frame of the department. On the other hand, in the case of manufacturing by a liquid crystal injection method, the liquid crystal is generally not filled in the sealing portion 13 in the sealing structure 10, and the shape of each sealing portion 13 is a frame shape having an opening portion. The opening portion becomes an injection port for injecting liquid crystal into the interior in a subsequent step.

The sealing structure 10 satisfies the following formulae (1-1) and (2-1). In addition, since there is no adhesion part in the sealing structure 10, (Z1 × W1) and (Z2 × W2) in the above formula (1) each correspond to 0.

Formula (1-1) (X1 × Y1) / (A1 × B1)> 1

Formula (2-1) (X2 × Y2) / (A2 × B2)> 1

In the formula (1-1), X1 represents the peel strength (N / mm) between the sealing portion 13 and the first glass substrate 111. The method for measuring the peel strength is not particularly limited, and it can be measured using a known measuring device such as SAICAS. As X1, as long as the above relationship is satisfied, its value is not special It is limited, but from the viewpoint of further suppressing the peeling of the sealing portion or the damage of the glass substrate during the peeling of the support structure, it is preferably 0.10 N / mm or more, and more preferably 0.15 N / mm or more. The upper limit is not particularly limited.

Y1 represents the total contact area 111 of the substrate glass 13 and the first sealing portion (mm ^2). In the case of the sealing portion 13 shown in FIGS. 1 and 2, it means the sum of the areas where the six frame-shaped sealing portions 13 contact the first glass substrate 11. In other words, it corresponds to the total area occupied by the sealing portion 13 in FIG. 1.

A1 represents the peel strength (N / mm) between the first glass substrate 111 and the first support structure 112. As described above, the first glass substrate 111 and the first support structure 112 are releasably attached. As A1, the value is not particularly limited as long as the above relationship is satisfied, but it is preferably 0.015 N / mm or less in terms of further suppressing the peeling of the sealing portion or the damage of the glass substrate at the time of peeling of the support structure, It is more preferably 0.010 N / mm or less. The upper limit is not particularly limited, but it is preferably 0.001 N / mm or more from the viewpoint that the positional deviation of the first glass substrate 111 can be further suppressed.

B1 represents the total contact area (mm ² ) between the first glass substrate 111 and the first support structure 112. In the case of FIGS. 1 and 2, the first glass substrate 111 and the first support structure 112 are in contact over the entire surface, and the total contact area of the two is equivalent to the first glass substrate 111 (or the first support structure 112). Of the area.

When the sealing structure 10 satisfies the relationship of formula (1-1), when the first support structure 112 is peeled from the sealing structure 10, peeling of the sealing portion 13 or damage to the first glass substrate 111 can be suppressed.

If only the difference between the peel strength between the sealing portion 13 and the first glass substrate 111 and the peel strength between the first glass substrate 111 and the first support structure 112 is controlled, when the first support structure 112 is peeled, Peeling of the sealing portion 13 or damage to the first glass substrate 111 cannot be sufficiently suppressed. The reason for this is presumably that the stress when the first support structure 112 was peeled off not only spread to a local part, but also spread to the entire surface. Therefore, the inventors thought of the sealing portion The total contact area between 13 and the first glass substrate 111 and the total contact area between the first glass substrate 111 and the first support structure 112 will play an important role in expressing the desired effect, and it was found that it must satisfy the formula (1-1) Relationship. That is, in the formula (1-1), the value obtained by multiplying the peeling strength X1 between the sealing portion 13 and the first glass substrate 111 by the contact area Y1 and the value between the first glass substrate 111 and the first support structure 112 The value obtained by multiplying the peeling strength A1 by the contact area B1 is compared. If the value exceeds a specific value, it means that peeling of the sealing portion or damage to the glass substrate can be suppressed. In addition, the value obtained by multiplying the peeling strength by the total contact area means the sum of the peeling energy between the following two.

Furthermore, in the formula (1-1), although (X1 × Y1) / (A1 × B1) exceeds 1, from the viewpoint of further suppressing the peeling of the sealing portion or the damage of the glass substrate, it is preferably 1.10. The above is more preferably 1.40 or more. The upper limit is not particularly limited, but there are many cases where the upper limit is 10 or less.

In addition, by satisfying the relationship of the formula (2-1) with the seal structure 10, when the second support structure 122 is peeled from the seal structure 10, peeling of the seal portion 13 or damage to the second glass substrate 121 can be suppressed.

In the formula (2-1), X2 represents a peel strength (N / mm) between the sealing portion 13 and the second glass substrate 121. The method for measuring the peel strength is not particularly limited, and it can be measured using a known measuring device such as SAICAS. The preferred aspect of X2 is the same as the aforementioned preferred aspect of X1.

Y2 represents the total contact area (mm ² ) of the sealing portion 13 and the second glass substrate 121. In the case of the sealing portion 13 shown in FIGS. 1 and 2, it means the sum of the areas where the six frame-shaped sealing portions 13 are in contact with the second glass substrate 121.

A2 indicates the peel strength (N / mm) between the second glass substrate 121 and the second support structure 122. As described above, the second glass substrate 121 and the second support structure 122 are releasably attached. The preferred aspect of A2 is the same as the aforementioned preferred aspect of A1.

B2 indicates the total contact area (mm ² ) between the second glass substrate 121 and the second support structure 122. In the cases of FIGS. 1 and 2, the second glass substrate 121 and the second support structure 122 are in contact over the entire surface, and the total contact area of the two is equivalent to the first glass substrate 111 (or the first support structure 112). Of the area.

Furthermore, in the formula (2-1), although (X2 × Y2) / (A2 × B2) exceeds 1, in terms of further suppressing the peeling of the sealing portion or damage to the glass substrate, it is preferably 1.10 or more , More preferably 1.40 or more. The upper limit is not particularly limited, but there are many cases where the upper limit is 10 or less.

Moreover, in the sealing structure 10, X1 / A1 or X2 / A2 is preferably 5 to 100, and more preferably 10 to 100 in terms of further suppressing peeling of the sealing portion or damage to the glass substrate.

Furthermore, in the sealing structure 10, from the viewpoint of further suppressing the peeling of the sealing portion or the damage to the glass substrate, Y1 / B1 or Y2 / B2 is preferably 5 to 100, and more preferably 10 to 100.

As the first glass substrate 111 and the second glass substrate 121, glass plates each having a thickness of 0.3 mm or less were used. By setting the plate thickness to 0.3 mm or less, the weight of the liquid crystal display panel can be effectively reduced. The size of the first glass substrate 111 and the second glass substrate 121 is not particularly limited. For example, it is preferably 100 mm or more × 100 mm or more, and more preferably 500 mm or more × 500 mm or more. Particularly preferred is a size of 730 mm or more x 920 mm or more. With such a size, a plurality of liquid crystal display panels can be efficiently manufactured. As such a 1st glass substrate 111 and a 2nd glass substrate 121, the well-known glass plate used for manufacture of a liquid crystal display panel is used.

The glass plate is obtained by melting a glass raw material and molding the molten glass into a plate shape. As such a molding method, a general method can be used, and for example, a float method, a melting method, a downhole method, a Fock method, a Ruber method, or the like can be used. In particular, a glass plate having a thinner plate thickness is obtained by better forming by a method (retraction method): heating the glass temporarily formed into a plate shape to a formable temperature, and stretching it by a method such as stretching It becomes thin.

The type of glass plate need not be limited, and alkali-free borosilicate glass and borosilicate are preferred Acid glass, soda-lime glass, high-silica glass, and other oxide-based glass containing silicon oxide as the main component. The oxide-based glass is preferably a glass having a silicon oxide content of 40 to 90% by mass, which is obtained by conversion of an oxide.

The dissolution of an alkali metal component easily affects the liquid crystal, and therefore, glass (alkaline-free glass) that does not substantially contain an alkali metal component is particularly preferred. Examples of the alkali-free glass include an oxide-based mass percentage, containing SiO ₂ : 50 to 66%, Al ₂ O ₃ : 10.5 to 24%, B ₂ O ₃ : 0 to 12%, and MgO: 0 to 8 %, CaO: 0 ~ 14.5%, SrO: 0 ~ 24%, BaO: 0 ~ 13.5%, MgO + CaO + SrO + BaO: 9 ~ 29.5%, ZnO: 0 ~ 5%.

Regarding SiO ₂ , if the content is less than 50%, the strain point will not be sufficiently increased, the chemical durability will be deteriorated, and the thermal expansion coefficient will be increased. If it exceeds 66%, the meltability will decrease and the devitrification temperature will increase. It is preferably 58 to 66 mol%.

Al ₂ O ₃ suppresses the phase separation of glass, reduces the coefficient of thermal expansion, and increases the strain point. If the content is less than 10.5%, the effect will not be exhibited, and if it exceeds 24%, the melting property of the glass will be deteriorated. It is preferably 15 to 22%.

B ₂ O ₃ is not an essential component, but it can improve chemical durability to various chemicals and the like used in the formation of semiconductors, and can reduce the coefficient of thermal expansion and density without increasing the viscosity at high temperatures. When the content exceeds 12%, the acid resistance is deteriorated, and the strain point is lowered. It is preferably 5 to 12%.

MgO reduces the coefficient of thermal expansion in the alkaline earth metal oxide and does not reduce the strain point. Therefore, MgO may be contained although it is not an essential component. If the content exceeds 8%, the chemical durability of various chemicals and the like used in the formation of semiconductors is reduced, and the glass is likely to undergo phase separation.

CaO is not an essential component, but by including CaO, the melting property of glass can be improved. On the other hand, if it exceeds 14.5%, the thermal expansion coefficient increases and the devitrification temperature also increases. It is preferably 0 to 9%.

SrO is not an essential component, but it is a useful component because it suppresses the phase separation of glass and improves the chemical durability against various chemicals and the like used in the formation of semiconductors. If its content exceeds 24%, the expansion coefficient increases. It is preferably 3 to 12.5%.

BaO is not an essential component, but it is a useful component from the viewpoint of a small density and a reduced thermal expansion coefficient. Its content is 0 to 13.5%, preferably 0 to 2%.

If MgO + CaO + SrO + BaO is less than 9%, it will be difficult to melt, and if it exceeds 29.5%, the density will increase. MgO + CaO + SrO + BaO is preferably 9 to 18%.

ZnO is not an essential component, but ZnO may be added in order to improve the melting, clarity, and formability of glass. Its content is 0 to 5%, preferably 0 to 2%.

In addition to the above components, in the alkali-free glass, SO ₃ , F, and Cl may be added in a total amount of 5% or less in order to improve the melting, clarification, and formability of the glass.

Examples of the alkali-free glass include containing SiO ₂ : 58 to 66%, Al ₂ O ₃ : 15 to 22%, B ₂ O ₃ : 5 to 12%, and MgO: 0 in terms of mass percentage based on oxides. ~ 8%, CaO: 0 ~ 9%, SrO: 3 ~ 12.5%, BaO: 0 ~ 2%, MgO + CaO + SrO + BaO: 9 ~ 18%, ZnO: 0 ~ 2%.

The strain point of the alkali-free glass is preferably 640 ° C or higher, and more preferably 650 ° C or higher. The thermal expansion coefficient is preferably less than 40 × 10 ^-7 / ° C, more preferably 30 × 10 ^-7 / ° C or more and less than 40 × 10 ^-7 / ° C. The density is preferably less than 2.60 g / cc, more preferably less than 2.55 g / cc, and even more preferably less than 2.50 g / cc.

The first support plate 113 and the second support plate 123 are not particularly limited as long as they can effectively support the first glass substrate 111 and the second glass substrate 121, and glass plates, metal plates, and resin plates are preferably used. The difference in linear expansion coefficient between the first glass substrate 111 and the first support plate 113 is preferably 150 × 10 ^-7 / ° C or lower, more preferably 100 × 10 ^-7 / ° C or lower, and further preferably 50 × 10 ^-7 / ° C or less. Similarly, the difference between the linear expansion coefficients of the second glass substrate 121 and the second support plate 123 is preferably 150 × 10 ^-7 / ° C or lower, more preferably 100 × 10 ^-7 / ° C or lower, and further preferably 50 × 10 ^-7 / ℃ or less.

As the glass plate, the same type as the user of the first glass substrate 111 or the second glass substrate 121 is used, preferably alkali-free borosilicate glass, borosilicate glass, soda-lime glass, high-silica glass, or others An oxide-based glass whose main ingredient is silicon. Examples of the metal plate include stainless steel and copper.

Examples of the resin plate include polyethylene terephthalate resin, polycarbonate resin, polyimide resin, fluororesin, polyimide resin, polyaramide resin, polyether resin, and polyetherketone. Resins, polyetheretherketone resins, polyethylene naphthalate resins, polyacrylic resins, various liquid crystal polymer resins, polysiloxane resins, and the like.

The thicknesses of the first support plate 113 and the second support plate 123 are not particularly limited. From the viewpoint of effectively supporting the first glass substrate 111 and the second glass substrate 121, plate thicknesses of 0.1 to 1.1 mm are preferred, respectively. . The thickness of the first support plate 113 and the second support plate 123 is particularly preferably a thickness that can be applied to a production line of an existing liquid crystal display panel. For example, the thickness of the glass substrate used in the current production line of liquid crystal display panels is in the range of 0.5 to 1.2 mm, especially 0.7 mm. Therefore, the thickness of the first glass substrate 111 or the second glass substrate 121 is preferably 0.3 mm or less, and the thickness of the first support plate 113 or the second support plate 123 is preferably determined so that, for example, the first laminated body 11 Or, the plate thickness of the second laminated body 12 is 0.7 mm.

The first adhesive layer 114 can be used for releasable bonding of the first glass substrate 111, as long as the peel strength of the first glass substrate 111 and the first adhesive layer 114 is lower than that of the first support plate 113 and the first adhesive layer 114. There are no special restrictions. The first adhesive layer 114 is mainly used to suppress the positional deviation of the first glass substrate 111.

Since the second adhesive layer 124 is also basically the same, only the first adhesive layer 114 will be described.

When the first support structure 112 is peeled from the self-sealing structure 10, it must be peeled between the first glass substrate 111 and the first adhesive layer 114, but not between the first support plate 113 and the first adhesive layer 114. Will peel off. Therefore, it is preferable that the first adhesive layer 114 is not easily separated from the first support plate 113 and is easily separated from the first glass substrate 111.

As a method of making the peeling strength of the first glass substrate 111 and the first adhesive layer 114 lower than the peeling strength of the first support plate 113 and the first adhesive layer 114, for example, the following method may be used: a combination of a hardening silicone resin As a constituent of the first adhesive layer 114, a curable polysiloxane resin composition is coated on the first support plate 113 and cured to form the first adhesive layer 114, and then bonded to the first adhesive layer 114. First glass substrate 111.

In addition, even if the curable polysiloxane resin composition is brought into contact with both the first glass substrate 111 and the first support plate 113 and cured, the peeling strength with the first support plate 113 is higher than that with the first glass. In the case of the peeling strength of the substrate 111, the curable polysiloxane resin composition may be brought into contact with both the first glass substrate 111 and the first support plate 113 and cured. Examples of such a method include a method of performing a surface treatment on the surface of the first support plate 113 to increase the concentration of a silanol group in order to increase the bonding force.

The curable polysiloxane resin composition is preferably an addition reaction type hardening containing additives such as a linear organic alkenyl polysiloxane, a linear organic hydrogen polysiloxane, and a catalyst, and hardened by heating. Sexual silicone resin composition. Compared with other curable polysiloxane resin compositions, the addition reaction type curable polysiloxane resin composition has a harder curing reaction, lower curing shrinkage, and easier peeling of the cured product. Examples of the form of the addition-reaction-type curable polysiloxane resin composition include a solvent type, an emulsion type, and a solventless type, and may be in any form. As the addition reaction type curable silicone resin composition, for example, those disclosed in International Publication No. 2011/024775 are preferred.

In the first embodiment, the first adhesive layer 114 and the second adhesive layer 124 are used, but between the first glass substrate 111 and the first support plate 113 and between the second glass substrate 121 and the second support plate. When the layers 123 can be peeled and laminated in a desired relationship, the first adhesive layer 114 and the second adhesive layer 124 may not be used.

The sealing portion 13 is not particularly limited as long as it can be connected to the first glass substrate 111 and the second glass substrate 121. A known sealing material such as an epoxy resin, which is generally used in the manufacture of such a member for a liquid crystal display panel, can be used to harden Success.

The width of the sealing portion 13 is preferably 0.08 mm or more. By setting the width to be 0.08 mm or more, the first glass substrate 111 and the second glass substrate 121 can be effectively joined by the sealing portion 13, and the peeling of the sealing portion 13 and the first glass substrate 111 and the second can be effectively suppressed. The glass substrate 121 is damaged. The width is more preferably 0.1 mm or more, and still more preferably 0.5 mm or more. Generally, the width can be approximately 0.1 mm to sufficiently adhere the first glass substrate 111 and the second glass substrate 121, but from the viewpoint of productivity and the like, it is preferably 5 mm or less, and more preferably 3 mm or less.

When the sealing portion 13 is provided, it is preferable to set the distance between the sealing portion 13 located at the outermost peripheral portion and the end of the laminated body within a range of 10 mm. By shortening the distance from the edge of the laminated body, peeling of the sealing portion 13 and damage of the first glass substrate 111 and the second glass substrate 121 can be effectively suppressed. The distance between the sealing portion 13 located at the outermost peripheral portion and the end of the laminated body is preferably within a range of 5 mm, and further preferably within a range of 3 mm.

(Manufacturing method of sealed structure)

The manufacturing method of the sealing structure 10 is not specifically limited, It can manufacture by a well-known method. For example, after the first laminated body 11 and the second laminated body 12 are manufactured, they are applied so as to surround the formation area of the first glass substrate 111 in the first laminated body 11 or the second glass substrate 121 in the second laminated body 12. The cloth becomes a sealing material of the sealing portion 13. Then, when a liquid crystal dropping and bonding method is adopted, after the liquid crystal is dropped to the formation region, the sealing material and the liquid crystal laminated first laminated body 11 and the second laminated body 12 are interposed. When a liquid crystal injection method is used, the first laminated body 11 and the second laminated body 12 are laminated with a sealing material interposed therebetween.

In addition, the coating method of the sealing material is not particularly limited, and it can be drawn using a dispenser or an inkjet device, or printed by screen printing. The sealing material is not limited to an epoxy resin, and may be, for example, a UV-curable epoxy-modified acrylic resin.

After the first laminated body 11 and the second laminated body 12 are laminated, the sealing material is hardened. The hardening method of the sealing material can be optimized according to the hardening method of the sealing material. For example, when an epoxy resin is used as the sealing material, the hardening is performed by heating, and the ultraviolet curing epoxy-modified acrylic is used. In the case where a resin or the like is used as a sealing material, it is cured by irradiating ultraviolet rays.

The first laminated body 11 is produced by, for example, releasably bonding the first glass substrate 111 to the first support structure 112. The first support structure 112 is produced by, for example, applying a curable polysiloxane resin composition as the first adhesive layer 114 to the first support plate 113 and curing the curable polysiloxane resin composition. The first laminated body 11 is produced by, for example, bonding the first glass substrate 111 to the first adhesive layer 114 of the first support structure 112 manufactured in this manner. Examples of the bonding method include a non-contact compression bonding method using a pressure chamber, and a contact compression bonding method using a roller or a press. The second laminated body 12 can also be produced in substantially the same manner.

In the respective formation regions of the first glass substrate 111 in the first multilayer body 11 and the second glass substrate 121 in the second multilayer body 12, an insulating film, a transparent electrode film, and a thin-film transistor are formed according to the liquid crystal display method as necessary. (TFT) or thin film diode (TFD), switching elements, color filters (CF), etc. (patterning step). In addition, an alignment film such as a polyfluorene film is printed so that liquid crystal molecules can be aligned, and grooves for alignment are formed (friction step).

(Member for liquid crystal display panel)

The first support structure 112 and the second support structure 122 are peeled from the sealing structure 10 to manufacture a member 20 for a liquid crystal display panel.

The peeling of the first supporting structure 112 from the sealing structure 10 can be performed by, for example, inserting a sharp one into the interface between the liquid crystal display panel member 20 and one of the ends of the first supporting structure 112, especially the corner. The blade-shaped person gives a chance of peeling, and then blows a mixed fluid of water and compressed air to the insertion portion. The peeling is preferably performed slowly from one end portion of the member 20 for the liquid crystal display panel and the first support structure 112, especially the corner portion toward the corner portion facing the opposite portion, as shown in FIG. 3.

Preferably, the two surfaces of the structural body 10 are vacuum-sealed by a plurality of vacuum suction pads, and in this state, sharp edges are inserted into an interface between one end portion of the liquid crystal display panel member 20 and the first support structure 112, particularly a corner portion. In the case of a blade, the first support structure 112 is slowly peeled off from the insertion portion, and the vacuum suction pad on which the first support structure 112 is adsorbed is lifted and moved.

The peeling of the second supporting structure 122 from the sealing structure 10 (the member 20 for a liquid crystal display panel) can also be performed in substantially the same manner.

When the liquid crystal dropping and bonding method is adopted, each of the manufactured liquid crystal display panel members 20 is a sealing portion 13 that becomes a liquid crystal display panel and is filled with liquid crystal. Therefore, in the case where a plurality of sealing portions 13 are formed, for example, the liquid crystal display panel can be manufactured by cutting into each sealing portion 13.

In the case of the liquid crystal injection method, the liquid crystal display panel is generally not filled with the sealing portion 13 of each of the manufactured liquid crystal display panel members 20 as a liquid crystal display panel. Therefore, liquid crystal is injected into the sealing portion 13 to form a liquid crystal display panel. Specifically, for example, liquid crystal is injected in the state of the member 20 for a liquid crystal display panel, and thereafter, the liquid crystal display panel is produced by being cut into individual sealing portions 13. Alternatively, for example, the liquid crystal display panel member 20 may be cut into individual sealing portions 13 and then liquid crystal may be injected into each of the sealing portions 13 to form a liquid crystal display panel. Alternatively, the liquid crystal display panel member 20 may be divided into After a certain size of the plurality of sealing portions 13, liquid crystal is injected into each of the sealing portions 13, and then the liquid crystal display panel is manufactured by being divided into each of the sealing portions 13.

The liquid crystal display panel manufactured in this way can be used as a display portion of various electronic devices. Examples of the electronic device include personal computers such as portable phones and notebook computers, portable information devices such as PDAs (Personal Digital Assistants), workstations, digital still cameras, digital video cameras, and vehicles Monitors, LCD TVs, car navigation devices, electronic notebooks, calculators, point-of-sale (POS) terminals, etc.

In addition, the liquid crystal display panel can be made of a transmissive type, a reflective type, or a semi-transmissive type, and various monochrome or color liquid crystal display panels. In addition, it can be made into various liquid crystal display panels of passive matrix type and active matrix type.

<Second Embodiment>

Hereinafter, a second embodiment of the seal structure will be specifically described with reference to the drawings.

4 and 5 are a plan view and an A-A cross-sectional view showing an example of the second embodiment of the sealed structure.

The sealing structure 200 is used for manufacturing the member 20 for a liquid crystal display panel, and as shown in FIGS. 4 and 5, it has a part which becomes the member 20 for a liquid crystal display panel. The sealing structure 200 includes a first laminated body 11, a second laminated body 12, a sealing portion 13, and an adhesive portion 14.

In the form of the sealing structure 200, it is possible to further suppress damage to a portion that becomes a member for a liquid crystal display panel when a pair of supporting structures is peeled from the sealing structure.

Specifically, when the support structure is peeled off from each of the glass substrates of the sealing structure, a bonding portion is provided in the vicinity of the sealing portion, which is different from the sealing portion, so that the stress locally applied to the sealing portion can be reduced, and the suppression can be suppressed. The peeling of the sealing portion, that is, the peeling of the glass substrate and the sealing portion. Moreover, by providing a bonding portion different from the sealing portion in the vicinity of the sealing portion, it is also possible to reduce stress locally applied to the glass substrate, and also to suppress damage to the glass substrate.

The seal structure 200 shown in FIGS. 4 and 5 has the same structure as the seal structure 10 shown in FIG. 1 except that the seal structure 200 includes the bonding portion 14. Therefore, the same reference numerals are given to the same constituent elements and the description thereof is omitted. The following description mainly discusses the bonding section 14.

The bonding portion 14 has a shape and arrangement in which the first laminated body 11 and the second laminated body 12 are adhered to the outside of the sealing portion 13, and the first supporting structure 112 or the second supporting structure 122 is peeled from the self-sealing structure 10. In this case, damage to the portion that becomes the member 20 for the liquid crystal display panel, specifically, peeling of the sealing portion 13 and damage to the first glass substrate 111 and the second glass substrate 121 can be suppressed. That is, as long as it can suppress the peeling, it will become the member 20 for liquid crystal display panels. If the part is damaged, the shape or arrangement of the bonding portion 14 is not particularly limited.

The bonding portion 14 is not particularly limited as long as it can bond the first glass substrate 111 and the second glass substrate 121, and is formed by curing a bonding material such as an epoxy resin.

The adhering portion 14 is provided linearly along the sealing portion 13 as shown in FIG. 4. For example, when the sealing structure 200 is rectangular, it is provided between the long side of the sealing structure 200 and the sealing portion 13 adjacent to the long side so as to extend in the longitudinal direction of the sealing structure 200, and The seal portions 13 in the short-side direction of the seal structure 200 are provided so as to extend in the long-side direction of the seal structure 200.

When the linear bonding portion 14 is provided, it is preferable to provide the same length in the long side direction of the sealing structure 200 in the same area as the area in which the sealing portion 13 is provided, or in a longer area. Long area. Specifically, as shown in FIG. 4, in a case where three seal portions 13 are provided in the longitudinal direction of the seal structure 200, it is preferable to be the same as the area where the three seal portions 13 are provided. The zones are set with the same length or longer. By setting such a region and length, for example, when the second support structure 122 is peeled from one corner as shown in FIG. 6, the peeling boundary line L is located on the sealing portion 13 and also on the bonding portion 14. It is possible to suppress local stress from being applied to only a part of the sealing portion 13, and to suppress peeling of the sealing portion 13 and damage to the first glass substrate 111 and the second glass substrate 121.

When the sealing portion 13 or the bonding portion 14 is provided, it is preferable to set a distance between any one of the sealing portion 13 or the bonding portion 14 located at the outermost peripheral portion and the end of the laminated body within a range of 10 mm. . By shortening the distance from the edge of the laminated body, peeling of the sealing portion 13 and damage of the first glass substrate 111 and the second glass substrate 121 can be effectively suppressed. The distance between the sealing portion 13 or the bonding portion 14 located at the outermost peripheral portion and the end of the laminated body is preferably within a range of 5 mm, and further preferably within a range of 3 mm.

When a linear bonding portion 14 is provided, the bonding portion 14 provided between the long side of the sealing structure 200 and the sealing portion 13 adjacent to the long side is preferably the sealing portion 13. The separation distance is set within a range of 10 mm. By shortening the distance between the sealing portion 13 and the bonding portion 14, peeling of the sealing portion 13 and breakage of the first glass substrate 111 and the second glass substrate 121 can be effectively suppressed. The distance from the sealing portion 13 is more preferably within a range of 5 mm, and even more preferably within a range of 3 mm. In addition, the distance from the sealing portion 13 does not need to be fixed, and may be different in the length direction of the linear bonding portion 14, but it is preferably within the above range as a whole. The closer the distance from the sealing portion 13 to the bonding portion 14 is, the better, and the bonding portion 14 may be provided in contact with the sealing portion 13. Here, the distance between the sealing portion 13 and the bonding portion 14 is the distance between the side surface portion of the sealing portion 13 and the side surface portion of the bonding portion 14.

In the case where the linear bonding portion 14 is provided, it is preferably provided at least between the long side of the sealing structure 200 and the sealing portion 13 adjacent to the long side, but it is also preferably provided in the sealing structure 200. The seal portions 13 in the short-side direction are between each other. When three or more seal portions 13 are provided in the short-side direction of the seal structure 200, it is preferable to provide the seal portions 13 between all the seal portions 13. As for the bonding portion 14 provided between the sealing portions 13 in the short-side direction of the sealing structure 200, it is preferable to provide the bonding portion 14 with equal stress to the sealing portions 13 on both sides of the bonding portion 14. In the central portion of each of the sealing portions 13.

The width of the linear bonding portion 14 is preferably 0.08 mm or more. By setting the width to be 0.08 mm or more, the first glass substrate 111 and the second glass substrate 121 can be effectively bonded by the bonding portion 14, and peeling of the sealing portion and breakage of the glass substrate can be effectively suppressed. The width is more preferably 0.1 mm or more, and still more preferably 0.5 mm or more. The width is usually about 0.1 mm, and the first glass substrate 111 and the second glass substrate 121 can be sufficiently adhered. From the viewpoint of productivity, it is preferably 5 mm or less, and more preferably 3 mm or less.

The sealing structure 200 satisfies the following expressions (1) and (2).

Formula (1) {(X1 × Y1) + (Z1 × W1)} / (A1 × B1)> 1

Equation (2) {(X2 × Y2) + (Z2 × W2)} / (A2 × B2)> 1

In the formula (1), the definitions of X1, Y1, A1, and B1 are as described above.

In the formula (1), Z1 represents a peel strength (N / mm) between the bonding portion 14 and the first glass substrate 111. The method for measuring the peel strength is not particularly limited, and it can be measured using a known measuring device such as SAICAS. As Z1, as long as the above relationship is satisfied, the value is not particularly limited, and from the viewpoint of further suppressing the peeling of the sealing portion or the damage of the glass substrate during the peeling of the support structure, it is preferably 0.10 N / mm or more, more It is preferably at least 0.15 N / mm. The upper limit is not particularly limited.

W1 represents the total contact area (mm ² ) of the bonding portion 14 and the first glass substrate 111. In the case of the bonding portion 14 shown in FIGS. 4 and 5, it means the sum of the areas where the three linear bonding portions 14 contact the first glass substrate 11. In other words, it corresponds to the total area occupied by the bonding portion 14 in FIG. 4.

When the sealing structure 200 satisfies the relationship of the formula (1), when the first support structure 112 is peeled from the sealing structure 200, peeling of the sealing portion 13 or damage to the first glass substrate 111 can be suppressed.

If only the peel strength between the sealing portion 13 and the first glass substrate 111, the peel strength between the bonding portion 14 and the first glass substrate 111, and the peel between the first glass substrate 111 and the first support structure 112 are controlled. When the strength is poor, when the first support structure 112 is peeled off, peeling of the sealing portion 13 or damage to the first glass substrate 111 cannot be sufficiently suppressed. The reason for this is presumably that the stress when peeling off the first support structure 112 not only spread to a local part but also spread to the entire surface. The inventors thought of the total contact area of the sealing portion 13 and the first glass substrate 111, the total contact area of the bonding portion 14 and the first glass substrate 121, and the total contact of the first glass substrate 111 and the first support structure 112. The area plays an important role in the performance of the desired effect, so it is found that the relationship satisfying the formula (1) is more important. That is, in Equation (1), the value obtained by multiplying the peeling strength X1 between the sealing portion 13 and the first glass substrate 111 by the contact area Y1 and the peeling strength Z1 between the bonding portion 14 and the first glass substrate 121 The total value multiplied by the contact area W1 is compared with the value obtained by multiplying the peel strength A1 between the first glass substrate 111 and the first support structure 112 by the contact area B1. If the value exceeds a specific value, it means that It is possible to suppress peeling of the sealing portion or damage to the glass substrate.

Furthermore, in the formula (1), although {(X1 × Y1) + (Z1 × W1)} / (A1 × B1) exceeds 1, it is possible to further suppress the peeling of the sealing portion or the damage of the glass substrate. In other words, it is preferably 1.1 or more, and more preferably 1.4 or more. The upper limit is not particularly limited, but there are many cases where the upper limit is 10 or less.

Further, by satisfying the relationship of the formula (2) with the sealing structure 200, when the second support structure 122 is peeled from the sealing structure 200, peeling of the sealing portion 13 or damage to the second glass substrate 121 can be suppressed.

In the formula (2), the definitions of X2, Y2, A2, and B2 are as described above.

In the formula (2), Z2 represents the peeling strength (N / mm) between the bonding portion 14 and the second glass substrate 121. The method for measuring the peel strength is not particularly limited, and it can be measured using a known measuring device such as SAICAS. The preferred aspect of Z2 is synonymous with the preferred aspect of Z1.

W2 represents the total contact area (mm ² ) of the bonding portion 14 and the first glass substrate 121. In the case of the bonding portion 14 shown in FIGS. 4 and 5, it means the sum of the areas where the three linear bonding portions 14 contact the second glass substrate 121.

Furthermore, in the formula (2), although {(X2 × Y2) + (Z2 × W2)} / (A2 × B2) exceeds 1, in terms of further suppressing the peeling of the sealing portion or the damage of the glass substrate Is preferably 1.1 or more, and more preferably 1.4 or more. The upper limit is not particularly limited, but there are many cases where the upper limit is 10 or less.

In addition, in the sealing structure 200, X1 / A1 or X2 / A2 is preferably 5 to 100, and more preferably 10 to 100 in terms of further suppressing the peeling of the sealing portion or damage to the glass substrate.

In addition, in the sealing structure 200, Z1 / A1 or Z2 / A2 is preferably 5 to 100, and more preferably 10 to 100, in terms of further suppressing peeling of the sealing portion or damage to the glass substrate.

Further, in the sealing structure 200, peeling of the sealing portion and glass can be further suppressed. In terms of damage to the substrate, Y1 / B1 or Y2 / B2 is preferably 5 to 100, and more preferably 10 to 100.

Furthermore, in the sealing structure 200, W1 / B1 or W2 / B2 is preferably 5 to 100, and more preferably 10 to 100 in terms of further suppressing the peeling of the sealing portion or damage to the glass substrate.

(Manufacturing method of sealed structure)

The manufacturing method of the sealing structure 200 is not particularly limited, and it can be manufactured by a known method. For example, after the first laminated body 11 and the second laminated body 12 are manufactured, they are applied so as to surround the formation area of the first glass substrate 111 in the first laminated body 11 or the second glass substrate 121 in the second laminated body 12. The cloth serves as a sealing material for the sealing portion 13, and the adhesive material serving as the bonding portion 14 is coated in a specific shape on the outside thereof. Then, when a liquid crystal dropping and bonding method is adopted, after the liquid crystal is dropped in the formation region, the first laminated body 11 and the second laminated body 12 are laminated with the sealing material and the liquid crystal interposed therebetween. When a liquid crystal injection method is used, the first laminated body 11 and the second laminated body 12 are laminated with a sealing material and an adhesive material interposed therebetween.

Furthermore, the coating method of the sealing material and the adhesive material is not particularly limited, and it can be drawn using a dispenser or an inkjet device, or printed by screen printing. In addition, the sealing material and the bonding material are not limited to epoxy resins, and may be, for example, UV-curable epoxy-modified acrylic resins.

The sealing portion 13 and the bonding portion 14 may be formed of the same material or may be formed of different materials.

After the first laminated body 11 and the second laminated body 12 are laminated, the sealing material and the adhesive material are hardened. The hardening of the sealing material and the bonding material can be performed according to the hardening method of the sealing material and the bonding material. For example, when an epoxy resin or the like is used as the sealing material and the bonding material, the hardening is performed by heating. When a UV-curable epoxy-modified acrylic resin or the like is used as a sealing material and an adhesive material, curing is performed by irradiating ultraviolet rays. When the hardening method in the sealing material and the bonding material is different, It can be hardened in two or more steps.

The formation of the bonding portion 14 is preferably performed simultaneously with the formation of the sealing portion 13. Specifically, it is preferable that the application of the adhesive material to be the bonding portion 14 is performed simultaneously with the application of the sealing material to be the sealing portion 13, and the first laminated body 11 and the coating material of the sealing material and the adhesive are laminated. The second laminated body 12 is hardened by heating or the like. It is particularly preferable that the sealing material for forming the sealing portion 13 and the adhesive material for forming the bonding portion 14 include the same material, and the sealing material and the bonding material are applied in the same step using the same device. By using this method, the bonding portion 14 can be efficiently formed.

Furthermore, the sealing material and the bonding material may be formed without coating both of the first glass substrate 111 in the first laminated body 11 or the second glass substrate 121 in the second laminated body 12, or they may be formed on each other. Formed independently. For example, the first glass substrate 111 in the first multilayer body 11 may be coated with a sealing material, and the second glass substrate 121 in the second multilayer body 12 may be coated with an adhesive material, or may be set to the opposite state.

The first support structure 112 and the second support structure 122 are peeled from the sealing structure 200 to manufacture a member 20 for a liquid crystal display panel. The method of peeling can be performed in the same procedure as in the first embodiment.

More specifically, for example, as shown in FIG. 6, the 1st support structure 112 is peeled from one end side. Specifically, one corner portion of the self-sealing structure 200 is gradually peeled toward the opposite corner portion. At this time, by providing the bonding portion 14 near the sealing portion 13, a boundary line between the peeled portion and the portion to be peeled off and a stress-prone peeling boundary line L is located on the sealing portion 13, and is also located near the bonding portion.部 14 上。 On the part 14. Thereby, it is possible to suppress the stress from only being applied locally to a part of the sealing portion 13, so that peeling of the sealing portion 13 can be suppressed, and specifically, peeling of the first glass substrate 111 and the sealing portion 13, and second glass substrate 121 and The sealing portion 13 is peeled. Similarly, it is possible to suppress the stress from being locally applied to the first glass substrate 111 and the second glass substrate 121, and also to suppress the damage of the first glass substrate 111 and the second glass substrate 121. In addition, when the second support structure 122 is peeled off, This is done in the same way, and the same effect can be obtained.

In addition, normally, the adhesive part 14 is an unnecessary part, and is cut out from the sealing part 13 and discarded.

FIG. 7 is a plan view showing a modified example of the seal structure 10, and particularly a plan view showing a modified example of the bonding portion 14. FIG.

Regarding the sealing structure 300, the structures other than the bonding portion 14, that is, the structures of the first laminated body 11, the second laminated body 12, and the sealing portion 13 are the same as those of the sealing structure 200 shown in Figs. This sealing structure 300 is different in that the adhesive portion 14 is provided along the peripheral edge portions of the first laminated body 11 and the second laminated body 12 so as to surround the entirety of the plurality of sealed portions 13.

By providing the frame-shaped bonding portion 14 so as to surround the entirety of the plurality of sealing portions 13, the peeling boundary line L shown in FIG. 6 will also be located on the sealing portion 13 and also on the bonding portion 14, which can suppress stress. By only partially applying to a portion of the sealing portion 13, peeling of the sealing portion 13 can be suppressed, and specifically, peeling of the first glass substrate 111 and the sealing portion 13 and peeling of the second glass substrate 121 and the sealing portion 13 can be suppressed. Similarly, it is possible to suppress the stress from being locally applied to the first glass substrate 111 and the second glass substrate 121, and also to suppress the damage of the first glass substrate 111 and the second glass substrate 121.

When a frame-shaped bonding portion 14 is provided, the bonding portion 14 provided between the long side of the sealing structure 10 and the sealing portion 13 adjacent to the long side is preferably provided at a distance from the sealing portion 13. Within 10 mm. By shortening the distance between the sealing portion 13 and the bonding portion 14, peeling of the sealing portion 13 and breakage of the first glass substrate 111 and the second glass substrate 121 can be effectively suppressed. The distance from the sealing portion 13 is more preferably within a range of 5 mm, and even more preferably within a range of 3 mm. Moreover, the distance from the sealing portion 13 does not necessarily need to be fixed, and may be different in the length direction of the bonding portion 14, but it is preferably within the above range as a whole.

In the case where the frame-shaped bonding portion 14 is provided, it is preferably located at the outermost peripheral portion. The distance between the bonding portion 14 and the end of the laminated body is set within a range of 10 mm. By shortening the distance from the edge of the laminated body, peeling of the sealing portion 13 and damage of the first glass substrate 111 and the second glass substrate 121 can be effectively suppressed. The distance between the frame-shaped bonding portion 14 and the end of the laminated body is preferably within a range of 5 mm, and more preferably within a range of 3 mm.

The distance between the bonding portion 14 provided between the short side of the sealing structure 10 and the sealing portion 13 adjacent to the short side is preferably set within a range of 10 mm. By shortening the distance between the sealing portion 13 and the bonding portion 14, peeling of the sealing portion 13 and breakage of the first glass substrate 111 and the second glass substrate 121 can be effectively suppressed. The distance from the sealing portion 13 is more preferably within a range of 5 mm, and even more preferably within a range of 3 mm. Moreover, the distance from the sealing portion 13 does not necessarily need to be fixed, and may be different in the length direction of the bonding portion 14, but it is preferably within the above range as a whole.

The width of the frame-shaped bonding portion 14 is preferably 0.08 mm or more. By setting the width to 0.08 mm or more, the first glass substrate 111 and the second glass substrate 121 can be effectively bonded by the bonding portion 14, and peeling of the sealing portion 13 and the first glass substrate 111 and the second glass can be effectively suppressed. The glass substrate 121 is damaged. The width is more preferably 0.1 mm or more, and still more preferably 0.5 mm or more. The width is usually about 0.1 mm, and the first glass substrate 111 and the second glass substrate 121 can be sufficiently adhered. From the viewpoint of productivity, it is preferably 5 mm or less, and more preferably 3 mm or less.

FIG. 8 is a plan view showing another modified example of the seal structure 10, and particularly a plan view showing a modified example of the bonding portion 14.

This seal structure 400 is also the same as the seal structure 100 shown in FIGS. 4 and 5 in the structures other than the bonding portion 14, that is, the structures of the first laminated body 11, the second laminated body 12, and the sealing portion 13. This sealing structure 400 is different in that the bonding portion 14 is provided so as to surround each of the plurality of sealing portions 13.

By arranging the frame-shaped bonding portion 14 so as to surround each of the plurality of sealing portions 13, the peeling boundary line L shown in FIG. 3 will also be located on the sealing portion 13 as well as at the same time. In the portion 14, stress can be suppressed only locally applied to a part of the sealing portion 13, so that peeling of the sealing portion 13 can be suppressed. Specifically, peeling of the first glass substrate 111 and the sealing portion 13, and second glass substrate 121 can be suppressed. Delamination from the sealing portion 13. Similarly, it is possible to suppress the stress from being locally applied to the first glass substrate 111 and the second glass substrate 121, and also to suppress the damage of the first glass substrate 111 and the second glass substrate 121. In particular, by providing the frame-shaped bonding portion 14 so as to surround each of the plurality of sealing portions 13, the peeling of the sealing portion 13 and the first glass can be effectively suppressed compared with the case where the bonding portions 14 of other shapes are provided. The substrate 111 and the second glass substrate 121 are damaged.

When the frame-shaped bonding portion 14 is provided as described above, the distance between the bonding portion 14 and the sealing portion 13 is preferably set within a range of 10 mm. By shortening the distance between the sealing portion 13 and the bonding portion 14, peeling of the sealing portion 13 and breakage of the first glass substrate 111 and the second glass substrate 121 can be effectively suppressed. The distance from the sealing portion 13 is more preferably within a range of 5 mm, and even more preferably within a range of 3 mm. In addition, the distance from the sealing portion 13 does not necessarily need to be fixed, and may be different in the longitudinal direction (circumferential direction) of the bonding portion 14, but it is preferably within the above range as a whole.

When the frame-shaped bonding portion 14 is provided as described above, the distance between the bonding portion 14 located at the outermost peripheral portion and the end of the laminated body is preferably set within a range of 10 mm. By shortening the distance from the edge of the laminated body, peeling of the sealing portion 13 and damage of the first glass substrate 111 and the second glass substrate 121 can be effectively suppressed. As described above, the distance between the frame-shaped bonding portion 14 and the end of the laminated body is preferably within a range of 5 mm, and more preferably within a range of 3 mm.

The width of the frame-shaped bonding portion 14 is preferably 0.08 mm or more. By setting the width to 0.08 mm or more, the first glass substrate 111 and the second glass substrate 121 can be effectively bonded by the bonding portion 14, and peeling of the sealing portion 13 and the first glass substrate 111 and the second glass can be effectively suppressed. The glass substrate 121 is damaged. The width is more preferably 0.1 mm or more, and still more preferably 0.5 mm or more. As long as the width is usually about 0.1 mm, the first glass substrate 111 and the first glass substrate From the viewpoint of productivity and the like, the glass substrate 121 is preferably 5 mm or less, and more preferably 3 mm or less.

The representative shape and the like of the bonding portion 14 have been described above, but the shape and the like of the bonding portion 14 can be suppressed from becoming a liquid crystal display when the first support structure 112 and the second support structure 122 can be peeled off from the self-sealing structure 10. Damage to the part of the panel member 20, specifically the peeling of the sealing portion 13, and the shape and arrangement of the damage to the first glass substrate 111 and the second glass substrate 121 are not particularly limited.

For example, the bonding portion 14 is not limited to those that surround the entirety of the plurality of sealing portions 13 as shown in FIG. 7, or that surrounds each of the sealing portions 13 as shown in FIG. 8, and may include only the plurality of sealing portions 13. Adjacent portions of the sealing portion 13 may be in a grid shape provided between the plurality of sealing portions 13 and may be in the shape described above according to the number or arrangement of the sealing portions 13 as required. Further, the linear or frame-shaped bonding portion 14 does not necessarily need to be composed of a continuous linear portion, and may be formed of a discontinuous linear portion such as a dotted line.

The manufacturing method of the member for a liquid crystal display panel according to the embodiment has been described above, but the configuration can be appropriately changed as necessary without departing from the spirit of the present invention. For example, the seal structure is not limited to those having a number of seal portions as shown in the figure, and may be a plurality of seal portions. With a plurality of sealing portions, a liquid crystal display panel can be manufactured more efficiently. In the case where a plurality of seal portions are provided, the size or arrangement of each seal portion is not limited to the size, arrangement, etc. as shown in the figure, and may be appropriately changed. Furthermore, the size, arrangement, etc. of the adhesive portion can be appropriately changed in accordance with the size, arrangement, etc. of such a seal portion.

[Example]

Hereinafter, the present invention will be specifically described using examples and the like, but the present invention is not limited to these examples.

In the following examples and comparative examples, as the glass substrate, a glass plate made of alkali-free borosilicate glass (170 mm in length, 125 mm in width, 0.3 mm in thickness, and linear expansion coefficient of 38 × 10 ^-7 / ° C) was used. , Trade name "AN100" manufactured by Asahi Glass Co., Ltd.). A glass plate (trade name, manufactured of longitudinal 170 mm, transverse 125 mm, thickness 0.4 mm, a linear expansion coefficient 38 × 10 ^-7 / ℃, Asahi Glass Co., and, as a support plate, constituted of using the same alkali-free boron-silicate glass "AN100").

<Example 1>

One main surface of the support plate is cleaned with pure water, and then UV (ultraviolet) is cleaned to purify it.

Next, as a component (A), a linear vinyl methyl polysiloxane ("VDT-127", viscosity 700-800 cP (centipoise) at 25 ° C: made by Azmax, organic polysiloxane 1 mol% of vinyl group in mol: 0.325), and linear methylhydropolysiloxane ("HMS-301", viscosity 25-35 cP (centipoise) at 25 ° C) as component (B): Manufactured by Azmax, the number of hydrogen atoms bonded to silicon atoms in one molecule: 8) mixed so that the molar ratio of all vinyl groups to all hydrogen atoms bonded to silicon atoms (hydrogen / vinyl group) becomes 0.9 1 part by mass of a silicon compound having an acetylene-based unsaturated group represented by the following formula (1) as a component (C) is mixed with 100 parts by weight of the siloxane mixture.

HC≡CC (CH ₃ ) ₂ -O-Si (CH ₃ ) ₃ Formula (1)

Next, a platinum-based catalyst was added so that the platinum-converted platinum metal concentration became 100 ppm based on the total amount of component (A), component (B), and component (C) (manufactured by Shin-Etsu Silicone Co., Ltd., CAT -PL-56) to obtain a mixed solution of an organopolysiloxane composition.

The obtained mixed solution was applied to a first main surface of a previously purified support plate by a mold coater (speed 5 mm / s, GAP (gap) 150 μm, application pressure 95 kPa). Thereafter, the mixture (the composition layer for forming a resin layer) applied on the support plate was allowed to stand at room temperature for 10 minutes, and then heated and cured at 180 ° C. for 60 minutes in the air, so as to cover the entire support plate. A hardened silicone resin layer having a thickness of 15 μm was formed on the surface to obtain a support structure A (first support structure).

Next, one main surface of the glass substrate is cleaned with pure water, and then UV cleaned. Make it clean.

Then, after aligning the position of the support structure A with the glass substrate, the first main surface of the glass substrate and the peelable surface of the hardened silicone resin layer of the support structure A were made at room temperature using a vacuum pressing device. Laminated body A (first laminated body) was obtained by close contact.

Next, another laminated body B (second laminated body) was obtained by the same procedure as the above-mentioned procedure.

Next, on the main surface side of the glass substrate A of the laminated body A, the sealing resin liquid was drawn into a frame shape by a dispensing method so as to have the same shape as the sealing portion 13 shown in FIG. 4.

Furthermore, on the main surface side of the glass substrate A of the laminated body A, the resin liquid for bonding is drawn in a linear shape so as to have the same shape as the bonding portion 14 shown in FIG. 4 by a dispensing method. Thereafter, the laminated substrate A and the laminated substrate B are opposed to each other such that the glass substrate A of the laminated substrate A and the glass substrate B of the laminated substrate B face each other, and are then heat-hardened to obtain the sealed structure 1.

Furthermore, the width of the sealing portion and the width of the bonding portion were 0.08 mm and 0.08 mm, respectively.

In the sealing structure 1, the peel strength between the sealing portion and a glass substrate A was measured by SAICAS (manufactured by DAIPLA WINTES), and it was 0.11 N / mm. The total contact area between the sealing portion and a glass A was 960 mm ² .

In the sealing structure 1, the peel strength between the bonding portion and a glass substrate A was measured by SAICAS (manufactured by DAIPLA WINTES), and it was 0.11 N / mm. In addition, the total contact area between the bonding portion and a glass substrate A was 408 mm ² .

In the seal structure 1, the peel strength between a glass substrate A and the support structure A was measured by SAICAS (manufactured by DAIPLA WINTES), and it was 0.007 N / mm. The total contact area of a glass substrate A and the support structure A is 21,250 mm ² .

Furthermore, in the sealing structure 1, the peeling strength and the total contact area between the sealing portion and a glass substrate B, and the peeling strength and the total contact surface between the bonding portion and a glass substrate B. And the peel strength and total contact area between a glass substrate B and the support structure B, and the peel strength and total contact area between the sealing portion and a glass substrate A, and the adhesion between the bonding portion and a glass substrate A, respectively. The values of the peel strength and the total contact area between the glass substrate A and the support structure A are the same.

Based on the above values, the value of {(X1 × Y1) + (Z1 × W1)} / (A1 × B1) and {(X2 × Y2) + (Z2 × W2)} / (A2 × B2) is 1.01.

After the side of the laminated body B of the obtained sealed structure 1 was vacuum-adsorbed on the platen, a stainless steel cutting tool having a thickness of 0.1 mm was inserted at the interface between the glass substrate A of the corner portion of the sealed structure 1 and the cured silicone layer The support structure A is separated from the seal structure 1.

Thereafter, according to the same procedure, the support structure B is separated from the sealing structure after the support structure A is separated, thereby obtaining a member for a liquid crystal display panel.

When the support structure A and the support structure B were separated, although slight peeling was observed between the sealing portion and the glass substrate A or the glass substrate B, there was no practical problem, and the glass substrate A and the glass substrate B were not generated. Destruction.

<Example 2>

The width of the sealing portion was changed to 0.1 mm so that the total contact area between the sealing portion and one glass substrate A (and the other glass substrate B) was 1200 mm ^2. The procedure was the same as that of Example 1 except that the width of the sealing portion was changed to 0.1 mm. Manufacture of a member for a liquid crystal display panel.

In Example 2, the value of {(X1 × Y1) + (Z1 × W1)} / (A1 × B1) and {(X2 × Y2) + (Z2 × W2)} / (A2 × B2) is 1.19.

Furthermore, when the support structure A and the support structure B were separated, although slight peeling was observed between the sealing portion and the glass substrate A or B, there was no practical problem, and the glass substrates A and B did not occur. damage.

<Example 3>

The width of the bonding portion was changed to 0.1 mm so that the total contact area between the bonding portion and one glass substrate A (and the other glass substrate B) was 510 mm ^2. The procedure was the same as that of Example 1 except that the width of the bonding portion was changed to 0.1 mm. Manufacture of a member for a liquid crystal display panel.

In Example 3, the value of {(X1 × Y1) + (Z1 × W1)} / (A1 × B1) and {(X2 × Y2) + (Z2 × W2)} / (A2 × B2) was 1.09.

Furthermore, when the support structure A and the support structure B were separated, although slight peeling was observed between the sealing portion and the glass substrate A or B, there was no practical problem, and the glass substrates A and B did not occur. damage.

<Example 4>

The width of the sealing portion was changed to 0.5 mm so that the total contact area of the sealing portion and one glass substrate A (and the other glass substrate B) was 6000 mm ² so that the bonding portion and one glass substrate A (and another A glass substrate B) was manufactured in the same manner as in Example 1 except that the total contact area was 2550 mm ² and the width of the bonding portion was changed to 0.5 mm.

In Embodiment 4, the value of {(X1 × Y1) + (Z1 × W1)} / (A1 × B1) and {(X2 × Y2) + (Z2 × W2)} / (A2 × B2) has a value of 6.32.

In addition, when the support structure A and the support structure B were separated, no peeling of the sealing portion from the glass substrate A or B or damage to the glass substrates A and B occurred.

<Example 5>

Except changing the type of the resin liquid for sealing, and changing the peel strength between the sealing portion and one glass substrate A (and the other glass substrate B) to 0.17 N / mm, a liquid crystal was produced according to the same procedure as in Example 1. Components for display panels.

In Example 5, the value of {(X1 × Y1) + (Z1 × W1)} / (A1 × B1) and {(X2 × Y2) + (Z2 × W2)} / (A2 × B2) is 1.40.

In addition, when the support structure A and the support structure B were separated, no peeling of the sealing portion from the glass substrate A or B or damage to the glass substrates A and B occurred.

<Example 6>

Change the type of resin liquid used for bonding, and connect the bonding part to a glass substrate A (and another glass Except that the peel strength between the glass substrates B) was changed to 0.17 N / mm, a member for a liquid crystal display panel was produced according to the same procedure as in Example 1.

In Embodiment 6, the value of {(X1 × Y1) + (Z1 × W1)} / (A1 × B1) and {(X2 × Y2) + (Z2 × W2)} / (A2 × B2) is 1.18.

Furthermore, when the support structure A and the support structure B were separated, although slight peeling was observed between the sealing portion and the glass substrate A or B, there was no practical problem, and the glass substrates A and B were not damage.

<Comparative example 1>

The width of the sealing portion was changed to 0.05 mm so that the total contact area of the sealing portion and one glass substrate A (and the other glass substrate B) was 600 mm ² , and the procedure was the same as that of Example 1 Manufacture of a member for a liquid crystal display panel.

In Comparative Example 1, the value of {(X1 × Y1) + (Z1 × W1)} / (A1 × B1) and {(X2 × Y2) + (Z2 × W2)} / (A2 × B2) was 0.75.

In addition, when the support structure A and the support structure B are separated, peeling of the sealing portion from the glass substrate A or B or damage to the glass substrate A or B occurs.

<Comparative example 2>

The width of the bonding portion was changed to 0.05 mm so that the total contact area between the bonding portion and one glass substrate A (and the other glass substrate B) was 255 mm ^2. The procedure was the same as that of Example 1 except that the width of the bonding portion was changed to 0.05 mm 2. Manufacture of a member for a liquid crystal display panel.

In Comparative Example 2, the value of {(X1 × Y1) + (Z1 × W1)} / (A1 × B1) and {(X2 × Y2) + (Z2 × W2)} / (A2 × B2) was 0.90.

In addition, when the support structure A and the support structure B are separated, peeling of the sealing portion from the glass substrate A or B or damage to the glass substrate A or B occurs.

<Comparative example 3>

Change the type of sealing resin liquid, and change the peel strength between the sealing part and one glass substrate A (and the other glass substrate B) to 0.08 N / mm. A member for a liquid crystal display panel was manufactured by the same procedure as in Example 1.

In Comparative Example 3, the value of {(X1 × Y1) + (Z1 × W1)} / (A1 × B1) and {(X2 × Y2) + (Z2 × W2)} / (A2 × B2) was 0.82.

In addition, when the support structure A and the support structure B are separated, peeling of the sealing portion from the glass substrate A or B or damage to the glass substrate A or B occurs.

<Comparative Example 4>

The liquid crystal was produced by the same procedure as in Example 1 except that the type of the resin liquid to be used was changed, and the peel strength between the adhesive part and one glass substrate A (and the other glass substrate B) was changed to 0.08 N / mm. Components for display panels.

In Comparative Example 4, the value of {(X1 × Y1) + (Z1 × W1)} / (A1 × B1) and {(X2 × Y2) + (Z2 × W2)} / (A2 × B2) was 0.93.

In addition, when the support structure A and the support structure B are separated, peeling of the sealing portion from the glass substrate A or B or damage to the glass substrate A or B occurs.

The results of the above examples and comparative examples are summarized in Table 1.

In Table 1, the column "Peel Strength X" indicates the peel strength (N / mm) between the sealing portion and the glass substrate A (or glass substrate B), and the column "Total Contact Area Y" indicates the sealing portion and the glass substrate A. (Or glass substrate B) total contact area (mm ² ), the column "peeling strength Z" indicates the peel strength (N / mm) between the bonding part and glass substrate A (or glass substrate B), "total contact area The column “W” indicates the total contact area (mm ² ) between the sealing portion and the glass substrate A (or the glass substrate B), and the column “Peeling strength A” indicates the glass substrate A (or the glass substrate B) and the support structure A (or Peel strength (N / mm) between supporting structures B), the column "Total contact area B" indicates the total contact area between glass substrate A (or glass substrate B) and supporting structure A (or supporting structure B) (mm ² ), the column of “Formula (1)” indicates the result of “(X1 × Y1) + (Z1 × W1)} / (A1 × B1)”, and the column of “Formula (2)” indicates “(X2 × Y2) + (Z2 × W2)} / (A2 × B2) ”.

The peeling results in Table 1 were obtained based on the following criteria. Practically, it must be "○" and "◎".

"◎": No peeling of the sealing portion from the glass substrate A or B, or damage to the glass substrate A or B

"○": A slight peeling was observed between the sealing portion and the glass substrate A or B, but there was no problem in practical use

"×" peeled off the sealing part and the glass substrate A or B, or the glass substrate A or B was broken.

From Table 1 above, it can be confirmed that in the sealing structure that satisfies the relationship of the formulas (1) and (2), peeling between the sealing portion and the glass substrate or damage to the glass substrate is suppressed. In particular, it was confirmed that if the values of the formulas (1) and (2) are 1.40 or more, peeling is further suppressed.

On the other hand, in Comparative Examples 1 to 4 that did not satisfy the relationship of Expression (1) or Expression (2), peeling between the sealing portion and the glass substrate or damage to the glass substrate occurred.

As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment. Without departing from the scope of the present invention, various modifications and substitutions can be added to the above-mentioned embodiments.

This application is based on Japanese Patent Application No. 2012-224448 filed on October 9, 2012, the contents of which are incorporated herein by reference.

10‧‧‧Sealed structure

11‧‧‧The first laminated body

13‧‧‧Sealing Department

Claims (15)

A sealing structure, which is used for manufacturing a member for a liquid crystal display panel, and includes a first laminated body having a first glass substrate having a thickness of 0.3 mm or less and a peelable bonding with the first glass substrate. A first support structure; a second laminated body having a second glass substrate having a thickness of 0.3 mm or less and a second support structure releasably bonded to the second glass substrate; and a sealing portion, The first laminated body and the second laminated body are arranged so as to surround the formation area of the liquid crystal display panel; and the first glass substrate and the second glass substrate are opposed to each other and satisfy the following relational expression (1) And formula (2): formula (1) (X1 × Y1) / (A1 × B1) ≧ 1.4 formula (2) (X2 × Y2) / (A2 × B2) ≧ 1.4 (in formula (1), X1 represents the above Peel strength (N / mm) between the sealing portion and the first glass substrate, Y1 represents the total contact area (mm ² ) between the sealing portion and the first glass substrate, and A1 represents the first glass substrate and the first glass substrate. the peel strength between the support structure (N / mm), B1 denotes the total contact area of the first glass substrate and the structure of the first support ⁽² mm); the formula (2) , X2 represents the sealing portion and the peel strength (N / mm) between the second glass substrate 2, Y2 represents the total contact area (mm ²⁾ of the sealing portion and the second glass substrate, A2 represents the second glass substrate 2 The peel strength (N / mm) with the second support structure, B2 represents the total contact area (mm ² ) between the second glass substrate and the second support structure. For example, the sealing structure of claim 1 further includes: an adhering unit that adjoins the first laminated body and the second laminated body in an arbitrary configuration; and the first glass substrate and the second glass substrate face each other. And satisfy the following relational expressions (1) and (2): Formula (1) {(X1 × Y1) + (Z1 × W1)} / (A1 × B1) ≧ 1.4 Formula (2) {(X2 × Y2 ) + (Z2 × W2)} / (A2 × B2) ≧ 1.4 (In the formula (1), X1, Y1, A1, and B1 are the same as the request item 1, and Z1 represents the distance between the bonding portion and the first glass substrate. Peel strength (N / mm), W1 represents the total contact area (mm ² ) of the bonding portion and the first glass substrate; in formula (2), X2, Y2, A2, and B2 are the same as those in claim 1, and Z2 represents the above The peeling strength (N / mm) between the bonding portion and the second glass substrate, and W2 represents a total contact area (mm ² ) between the bonding portion and the second glass substrate. The sealing structure of claim 1, wherein the first supporting structure includes a first supporting plate and a first hardened silicone resin layer provided on a main surface of one side of the first supporting plate, and the first glass substrate. Removably bonded to the first hardened silicone layer, and the second support structure includes a second support plate and a second hardened silicone layer provided on a main surface of one side of the second support plate. The second glass substrate and the second hardened silicone resin layer are releasably attached. The sealing structure according to claim 1 includes a plurality of the above-mentioned sealing portions. The sealing structure according to claim 2 includes a plurality of the above-mentioned sealing portions. The sealing structure according to claim 3 includes a plurality of the above-mentioned sealing portions. The sealing structure according to claim 5, wherein the bonding portion is provided linearly along the sealing portion. The sealing structure according to claim 5, wherein the bonding portion is provided so as to surround the entirety of the plurality of sealing portions. The sealing structure according to claim 5, wherein the above-mentioned bonding portion surrounds the above-mentioned plurality Each of the sealing portions is provided. The sealed structure according to any one of claims 1 to 9, wherein the first glass substrate and the second glass substrate have a size of 730 mm in length × 920 mm in width. The sealing structure according to any one of claims 1 to 9, wherein the first glass substrate and / or the second glass substrate is made of an alkali-free glass. The sealing structure according to claim 11, wherein the first glass substrate and / or the second glass substrate are made of alkali-free glass containing the following components in terms of mass percentage based on oxides: SiO ₂ : 50 to 66% Al ₂ O ₃ : 10.5 ~ 24% B ₂ O ₃ : 0 ~ 12% MgO: 0 ~ 8% CaO: 0 ~ 14.5% SrO: 0 ~ 24% BaO: 0 ~ 13.5% MgO + CaO + SrO + BaO: 9 ~ 29.5% ZnO: 0 ~ 5%. The sealing structure according to claim 11, wherein the first glass substrate and / or the second glass substrate are composed of an alkali-free glass containing the following components in terms of a mass percentage of an oxide basis: SiO ₂ : 58 to 66% Al ₂ O ₃ : 15 ~ 22% B ₂ O ₃ : 5 ~ 12% MgO: 0 ~ 8% CaO: 0 ~ 9% SrO: 3 ~ 12.5% BaO: 0 ~ 2% MgO + CaO + SrO + BaO: 9 ~ 18% ZnO: 0 ~ 2%. A method for manufacturing a member for a liquid crystal display panel, comprising a peeling step of peeling off the first support structure and the second support structure from the sealing structure according to any one of claims 1 to 13. The method for manufacturing a member for a liquid crystal display panel according to claim 14, wherein in the peeling step, the peeling of the first supporting structure and the second supporting structure from the sealed structure is from one end of the sealed structure. Go slowly.