WO2012029347A1 - Glass composite, electronic device using glass composite, and input device - Google Patents

Abstract

It is difficult to carry out mass production by means of glass insert molding without there being deviations in quality, and it has not been possible to obtain stabilized glass composites without warping or cracking, and the purpose of the present invention is therefore to provide a glass composite which is ideal for manufacturing and comprises a frame and glass that are integrated. A glass composite (10) of the present application is characterized by comprising a glass member (11) that transmits visible light, a frame (20) that supports the glass member (11), and an adhesive member (30) that adheres the glass member (11) to the frame (20), by the glass member (11) being a flat sheet and comprising a side surface (11a) around the periphery thereof and furthermore the side surface (11a) being fixed to the frame (20) by means of the adhesive member (30), and by the adhesive member (30) constituting a buffer layer that mitigates stress applied to the frame (20).

Description

Glass composite, electronic device using glass composite, and input device

The present invention relates to a glass composite and an electronic device using the glass composite, and an input device, and more particularly to a structure of a glass composite capable of preventing a crack.

Currently, portable electronic devices and the like are provided with an input device which is disposed so as to be superimposed on a display device. The input device is mainly composed of a translucent base material, and can perform an input operation by touching a detection region with a finger or the like while visually recognizing the display content of the display device screen through it.

Such an input device is arranged to be superimposed on the display screen to configure the electro-optical device. However, since the operator sees the display contents of the display screen through the input device, the screen brightness etc. Performance in terms of visibility is very important. In the case of using a glass substrate excellent in optical properties, the visibility is good, and the cost of the glass substrate is not a problem if it is a shape obtained by cutting a flat plate. However, in order to match the design of the electronic device, there is a problem that the cost of the glass substrate becomes high when processing such as a circular hole or an elliptical hole and three-dimensional processing of the outer shape are performed. Moreover, when using a resin base material and arrange | positioning on a display apparatus screen, there existed a fault whose visibility is inferior compared with a glass base material.

Therefore, in the base material of the input device, the frame has been formed by resin molding, and in the display device screen area, a glass insert forming technique for embedding a flat glass plate has been considered. As such a structural example, for example, Patent Document 1 is a housing in which a glass flat plate (a flat plate made of a glass plate) and a frame (resin frame) for supporting the periphery of the back surface thereof are integrated by glass insert molding. The case is described. Moreover, the thermosetting resin composition which can reduce curvature when it integrates with a glass flat plate is indicated by patent document 2 by setting it as a frame material with a small linear expansion coefficient.

The manufacturing method of glass insert molding is the following steps. First, a flat glass plate is cut into a predetermined size by cutting a plate material of a large size glass and grinding the cut surface. A flat glass plate (a flat plate made of a glass plate) is fixed at an accurate position by vacuum suction or the like in a molding die consisting of a movable die and a fixed die. The molding die is closed, the molten resin is injected and filled, and it is cooled and taken out to complete an integrated glass insert molded product.

WO 2008/035736 Publication JP-A-9-118830

However, as a problem unique to glass insert molding, stress is generated in the frame and the glass flat plate due to molding shrinkage of the resin to cause warpage and cracks, so that the linear expansion coefficients of the glass flat plate and the frame are made comparable. It was necessary to use various resin materials.

Moreover, the glass insert molded article had the following problems, and mass production was very difficult. The dimensional variation in the cutting of the glass flat plate is large compared to the accuracy of the mold, the positioning accuracy to the predetermined position in the mold is also worse, and the dimensional variation of the molded product becomes large. Since the reproducibility can not be obtained, there is a quality variation in mass-produced products. In order to improve the positioning accuracy, a special device is required for the mold. Furthermore, since glass insert molding is prone to pinholes and pinholes can not be completely suppressed in mass production, the application to glass insert molded products is limited to products that do not require complete sealing.

Moreover, although thermosetting resin is developed as resin for glass insert molding, the handling of a thermosetting resin material has a problem in mass productivity. Moreover, it is expensive because of a special resin material.

Therefore, it is difficult to mass-produce a glass composite in which a flat glass plate and a frame are integrated without quality variation by glass insert molding, and there is a problem that a glass composite without warpage or cracks can not be stably obtained. The

Then, this invention solves the said conventional subject, and it aims at providing the glass composite which does not have a curvature and a crack especially.

Another object of the present invention is to provide an electronic device and an input device using a glass composite having good visibility.

The glass composite according to the present invention has a flat glass member, a frame supporting the glass member, and an adhesive member bonding the glass member to the frame, and the side surface of the glass member The adhesive member is fixed to the frame through the adhesive member, and the adhesive member is a buffer layer which relieves stress applied to the frame.

In the present invention, unlike the glass insert molding in which the glass member and the frame are directly fixed, the side surface of the glass member and the frame in the present invention are fixed via an adhesive member. Thus, the glass member and the frame are not directly fixed, but are each fixed to the adhesive member, and the adhesive member acts as a buffer layer for absorbing and relieving stress. For this reason, even if the frame and the glass member expand and contract due to temperature change, the stress applied from the glass member to the frame is relaxed. Accordingly, it is possible to provide a glass composite free of warpage and cracks.

Furthermore, it is preferable that the frame is made of a molding resin and has a side wall portion facing the side surface, and the side surface and the side wall portion are provided with a filling portion for filling the adhesive member. is there. As a result, the bonding member can be filled into a complex housing formed of a molding resin and subjected to hole processing for functional parts without excessively compressing the adhesive member or causing a gap, so that the visibility can be improved. Can properly fix the good glass member.

Further, in the present invention, the side surface of the glass member and the side wall portion of the frame body are formed with different inclination angles,
It is preferable that the side surface and the side wall portion abut on each other, and a gap sandwiched between the side surface and the side wall portion be formed, and the bonding member be filled in the gap.

Thereby, in the present invention, the side surface of the glass member and the side surface of the frame can be brought into contact with each other, and the glass member can be fitted into the frame (abutment between the side surface and the side wall portion) Positioning in the direction (X, Y) can be performed easily and with high accuracy. In addition, since a gap capable of filling the adhesive member can be provided between the glass member and the frame, the glass member and the frame can be appropriately joined via the adhesive member. Further, even if the quality of the glass member and the frame is slightly different, in the present invention, the gap between the side surface of the glass member and the side wall of the frame can be surely formed, and the gap is tapered. Even if the shape changes slightly, the gap can be filled reliably (no pinholes occur), and the filling amount of the adhesive member can be managed uniformly.

Further, in the present invention, the inclination angles of the side surface and the side wall portion are the same halfway and different from each other, and the side surface and the side wall portion having the same inclination angle are in contact with each other. The adhesive member may be filled between the side surface and the side wall portion.

At this time, the side wall portion has a first inclined surface having a first inclination angle θ1 and a second inclined surface having a second inclination angle θ2 different from the first inclination angle.
Preferably, the first inclined surface and the side surface are in contact with each other, and the adhesive member is filled at least between the second inclined surface and the side surface.

Further, in the present invention, at least one of the side surface or the side wall portion is formed to be bent at a different inclination angle in the middle, and a gap between the side surface and the side wall portion is A first gap between the side wall portions in the contact direction and a second gap in the direction opposite to the contact direction, and an inclination angle between the side surface and the side wall portion in the second gap The difference may be larger than the difference in inclination angle between the side surface and the side wall portion in the first gap. At this time, it is preferable that the side wall portion be bent at different inclination angles in the middle.

Thus, the glass member can be easily and appropriately fitted into the frame while being guided by the side wall portion of the frame, and the positioning accuracy in the planar direction can be improved. In addition, it is easy to form the opening of the gap in a sufficiently wide shape while appropriately maintaining the strength of the glass member and the frame, and the adhesive member can be appropriately filled in the gap. In addition, even if the filling amount of the bonding member varies, the bonding member accumulates in the gap, and the bonding member is excessively at a portion where the side surface of the glass member and the side wall portion of the frame abut at the same inclination angle. Flowing in can be suppressed, and bonding between the glass member and the frame by the bonding member can be stabilized.

Further, in the present invention, in the side surface, a corner between the inclined surface and the flat surface is a chamfered surface, and at least an intersection of the chamfered surface and the inclined surface is in contact with the side wall portion. It is preferred that it be positioned. Also in such a configuration, the positioning of the glass member in the plane direction (X, Y) with respect to the frame can be performed easily and with high accuracy. In addition, a gap is formed between the side wall portion and the chamfered surface, and it is possible to prevent the adhesive member from flowing into the flat surface of the glass member even if the bonding member oozes into the gap to some extent. High flatness can be maintained.

In the present invention, the frame is an upper frame, a lower frame is provided separately from the upper frame, the upper frame and the lower frame are joined, and the lower frame is the lower surface side of the glass member It is extended to the At this time, the side surface of the glass member is inclined so that the width dimension of the glass member gradually decreases from the lower surface side to the upper surface side. The side wall portion of the upper frame is inclined so that the distance between the side wall portions gradually decreases from the lower surface side toward the upper surface side, and the inclination angle of the side wall portion is gentler than the inclination angle of the side surface Is preferred.

Thereby, when an impact or the like is applied, it is possible to appropriately prevent the glass member from coming off with respect to both directions of the upper and lower surfaces.

Further, in the present invention, preferably, the frame has an extension which is continuous with the side wall, and the extension is provided along the periphery of one surface of the flat surface of the glass member. Thus, even if a force is applied to the flat plate from the other surface of the flat plate, the glass member can be supported by the extending portion, so peeling of the glass member can be suppressed against an impact or the like at the time of dropping.

Further, in the present invention, the bonding member is preferably a transparent resin that transmits visible light. By so doing, it is possible to obtain a visually transparent glass composite.

Moreover, it is suitable that the said adhesion member is an ultraviolet curable resin. Thereby, the glass member and the frame can be easily bonded, and the residual stress at the time of bonding of the bonding member is small.

Furthermore, the side surface may have a notch that provides a step, and the frame may have an extension that follows the shape of the notch. Thereby, it becomes easy to set it as the structure of a glass composite which makes a continuous plane on both surfaces (upper and lower surfaces) of a glass member.

The notch portion may have a structure having an intermediate portion in contact with the extension portion. Thereby, it can be considered as the structure which a glass composite which makes a continuous plane on both surfaces of a glass member is easy to make.

An electronic device using the glass composite of the present invention is an electronic device capable of displaying information, and the electronic device has a display unit for displaying information, and the display unit is provided in the area of the glass member. It is characterized by Thereby, since the base material arrange | positioned on a display apparatus screen is a glass complex, since it is excellent in an optical characteristic compared with the resin base material, it is excellent in visibility. Therefore, an electronic device with good visibility can be realized.

The input device of the present invention has a substrate at least a part of which is translucent, and a pair of electrode substrates at least a part of which is translucent, and the substrate is the glass composite described above. The pair of electrode substrates have a pair of resistance films made of a transparent conductive film, and the pair of resistance films are opposed to each other through a gap. Thereby, since the base material arrange | positioned on a display apparatus screen is a glass complex, since it is excellent in an optical characteristic compared with the resin base material, it is excellent in visibility. Therefore, an input device with good visibility can be realized.

The input device of the present invention has a substrate at least a part of which is translucent, and an electrode substrate at least a part of which is translucent, and the substrate is the glass composite described above, The substrate is formed with one resistive film made of a transparent conductive film, and the electrode substrate is formed with the other resistive film made of a transparent conductive film, and the one resistive film and the other resistive film are formed. And may be configured to face each other via an air gap. Thereby, since the glass composite also serves as the substrate on which one of the resistive films is formed, an input device with better visibility can be obtained.

Alternatively, the input device according to the present invention has a substrate at least a part of which is translucent, and a sensor substrate at least a part of which is translucent, and the substrate is the glass composite described above, The sensor substrate may have an electrode for detecting a capacitance, and the base and the sensor substrate may be integrally bonded. Thus, in the glass composite, the frame doubles as the exterior, and the base disposed on the display screen is the glass composite, and therefore the optical properties are excellent compared to the resin base Excellent in quality. Therefore, an input device with good visibility can be realized.

Alternatively, in the input device of the present invention, the lower frame is provided separately from the upper frame which is the frame, and while the upper frame and the lower frame are joined, the lower frame is provided extending to the lower surface side of the glass member With a glass composite,
A sensor substrate is provided between the glass member and the lower frame.

In the present invention, by making the upper frame and the lower frame separate, the sensor substrate can be interposed between the glass member and the lower frame, and the sensor substrate is laminated on the flat lower surface side of the glass member, etc. It is possible to provide an input device excellent in sensor sensitivity.

According to the present invention, the bonding member bonding the glass member and the frame acts as a buffer layer absorbing and relieving stress. For this reason, even if the frame and the glass member expand and contract due to temperature change, the stress applied from the glass member to the frame is relaxed. Accordingly, a glass composite free of warpage and cracks can be realized.

Further, according to the present invention, since the substrate disposed on the display device screen is a glass composite, it is excellent in optical characteristics as compared to the resin substrate, and therefore, the visibility is excellent. Therefore, it is possible to realize an electronic device and an input device using a glass composite, which has good visibility.

It is a perspective view which shows the glass composite in the 1st Embodiment of this invention. FIG. 2 is a schematic vertical cross-sectional view of the glass composite of FIG. 1 cut along a line II-II. It is a model longitudinal cross-sectional view which shows the input device in 1st Embodiment. It is a model longitudinal cross-sectional view which shows the modification of the glass composite in 1st Embodiment. It is a model longitudinal cross-sectional view which shows the input device in 2nd Embodiment. It is a model longitudinal cross-sectional view which shows the glass complex in 3rd Embodiment. It is a model longitudinal cross-sectional view which shows the input device in 3rd Embodiment. It is a model longitudinal cross-sectional view which shows the 1st modification of the glass composite in 3rd Embodiment. It is a model longitudinal cross-sectional view which shows the 2nd modification of the glass composite in 3rd Embodiment. It is a model longitudinal cross-sectional view which shows the glass complex in 4th Embodiment. It is a model longitudinal cross-sectional view which shows the glass composite in 5th Embodiment. The component which comprises the glass complex in 6th Embodiment is shown, (a), (c), (d) is a top view, (b) cut | disconnects (a) from AA line, and it sees from the arrow direction (D) is a schematic longitudinal sectional view of (c) cut along the line BB and viewed from the direction of the arrow; (f) is a schematic longitudinal sectional view of (e) taken along the line C-C; It is a schematic longitudinal cross-sectional view seen. It is a model longitudinal cross-sectional view of the input device using the glass complex shown in FIG. FIG. 14 is a partially enlarged vertical sectional view showing a part of the input device of FIG. 13 in an enlarged manner. It is a partially expanded longitudinal cross-sectional view of the glass composite in 7th Embodiment. It is a partial expansion longitudinal cross-sectional view of the glass composite in 8th Embodiment. FIG. 18 is a partially enlarged cross-sectional view showing a modification of the glass composite of FIG. 15 and FIG. It is a model longitudinal cross-sectional view of the glass complex in 9th Embodiment. It is a model longitudinal cross-sectional view of the glass complex in 10th Embodiment. It is process drawing (a schematic longitudinal cross-sectional view) for demonstrating the manufacturing process of the glass complex shown in FIG. It is the top view and model longitudinal cross-sectional view of an input device (touch panel).

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in order to make a drawing legible, the ratio of the dimension of each component etc. is suitably varied and shown. Moreover, in each figure, a longitudinal cross-sectional view shows the cut surface which appears when it cut | disconnects in the thickness direction.

First Embodiment
FIG. 1 is a perspective view showing a glass composite 10 according to a first embodiment of the present invention, FIG. 2 is a schematic vertical cross-sectional view cut along the line II-II in FIG. It is a model longitudinal cross-sectional view of the input device 1 in which was provided. The glass composite 10 shown in FIGS. 1 and 2 is a base material that constitutes the input device 1, and as shown in FIG. 3, the detection panel 60 is fixed and used for mobile phones, portable game devices, etc. Ru.

As shown in FIG. 1, in the glass composite 10, a square region at the central portion is a flat glass member 11, and a region surrounding the glass member 11 is a frame 20. The glass member 11 is fixed to the frame 20 via an adhesive member 30. As shown in FIGS. 1 and 2, a filling portion 40 for filling the adhesive member 30 is provided. The flat glass member 11 is translucent, and can transmit display light. Translucency in the present specification means a state capable of transmitting light such as transparent or semi-transparent, and means that the transmittance is 50% or more and preferably 80% or more.

On the other hand, the frame 20 uses a translucent member, for example, a part of which is colored. The frame 20 is formed by filling a metal mold with a thermoplastic resin. As shown in FIG. 1, the frame 20 is provided with openings 21 and 22. The opening 21 can be applied to the housing of a mobile phone as the earpiece, the opening 22 as the mouthpiece, and the area of the glass member 11 as the display unit. In this case, the microphone, the speaker, and the liquid crystal display device are disposed on the back side of the glass composite 10. In addition to the thermoplastic resin, a thermosetting resin can be used for the frame 20.

As shown in FIG. 3, in the input device 1, a translucent detection panel 60 is attached to the glass composite 10. The glass composite 10 and the detection panel 60 are fixed by a translucent adhesive layer 61 such as an acrylic adhesive. Here, the adhesive layer 61 is capable of adhering the glass composite 10 and the detection panel 60 by its own tacking force, and is distinguished from an adhesive which cures from liquid to solid. However, an adhesive may be used instead of the adhesive layer 61.

As shown in FIG. 3, the detection panel 60 has a translucent flexible lower substrate 62 and a translucent flexible upper substrate 63 opposed thereto. In the detection panel 60, a spacer layer 64 formed of an adhesive is provided between the lower substrate 62 and the upper substrate 63, and the lower substrate 62 and the upper substrate 63 are opposed via the air gap 65.

A translucent lower resistance film such as ITO (Indium Tin Oxide) not shown is formed on the opposing surface of the lower substrate 62, and a translucent upper resistance such as ITO is also formed on the opposing surface of the upper substrate 63. A film has been formed. The respective resistive films are connected to the detection panel circuit via wiring or the like, but the detailed configuration is omitted in FIG.

In the detection panel 60, when the upper substrate 63 is pushed and bent, the upper resistive film and the lower resistive film partially contact. At this time, a voltage corresponding to the resistance value obtained by dividing the lower resistive film in the X direction is detected, and a voltage corresponding to the resistance value obtained by dividing the upper resistive film in the Y direction is detected. Thereby, the bending position on the XY coordinates is detected.

In the present embodiment, since the glass member 11 having excellent optical characteristics is used for the display device screen area, the input device 1 having good visibility of the display device screen can be obtained.

In addition, although the detection panel 60 becomes a structure which further fixed the surface base material further, it is abbreviate | omitting in FIG. The surface base material is formed of a transparent material such as polyethylene terephthalate (PET), and the area of the air gap 65 is kept translucent, and a colored layer is formed, for example, in the area of the spacer layer 64. The colored layer is formed by printing, vapor deposition, etc., and is a non-transparent decorative layer. The surface base material is fixed to the upper substrate 63 by a translucent adhesive layer such as an acrylic type.

In the glass composite 10 shown in FIG. 2, a glass member 11 manufactured in advance, a frame 20 manufactured in a process different from this, and an adhesive member 30 are integrated. The frame 20 has a side wall portion 20a opposed to the side surface 11a of the glass member 11, and the side surface 11a and the side wall portion 20a of the glass member 11 are arranged at a constant interval, whereby the side surface 11a and the side wall portion A filling portion 40 for filling the adhesive member 30 is formed between 20a and 20a. Then, the side surfaces of the glass member 11 and the frame body 20 are joined via the adhesive member 30 by the adhesive member 30 being filled in the filling portion 40.

Moreover, the frame 20 has the extension part 20b which followed the side wall part 20a, and the extension part 20b is provided along the back surface periphery of the glass member 11 of a flat plate. Thus, even if a force is applied to the glass member 11 from the surface side of the glass composite 10, the glass member 11 can be supported by the extending portion 20b, and thus peeling of the glass member 11 is suppressed against impact or the like at the time of falling it can.

In a specific example, the glass member 11 is a flat plate with a thickness of 0.7 mm, and the width of the filling portion 40 for filling the adhesive member 30 is 0.6 mm with respect to a rectangular design dimension of 40 mm × 60 mm. The molding die size of the frame 20 was designed such that the portion 20 b including the filling portion 40 had a width of 1.1 mm. The glass member 11 is a flat glass plate cut out from the plate material of large glass to the above dimensions, and the side surface 11a was subjected to an appropriate grinding process. On the other hand, the frame 20 was manufactured by molding polycarbonate (PC). Next, in the step of integrating these members, after being disposed using a suction jig so that the planar positional relationship between the two members becomes constant, the adhesive member 30 is applied to the filling portion 40, and the UV irradiation is continued And heat curing. The curing conditions were temporary fixation by ultraviolet irradiation for 15 seconds (irradiation light 365 nm, 150 mW / cm ² ), and thermal curing at 80 ° C. for 60 minutes.

In the glass composite 10 thus completed, the glass member 11 and the frame 20 are not directly fixed, but each is fixed to the bonding member 30, and the bonding member 30 itself acts as a buffer layer for absorbing and relieving stress. Do. Thereby, in the present embodiment, even if the frame 20 and the glass member 11 expand and contract due to temperature change, the stress applied from the glass member 11 to the frame 20 is relaxed.

The linear expansion coefficient of the glass member 11 is about 9 ppm / K, and the linear expansion coefficient of the frame 20 is about 70 ppm / K, so the frame 20 and the glass member at an environmental temperature of, for example, -40.degree. If 11 and 11 expand and contract freely, the maximum expansion and contraction difference between the room temperature of 10 ° C. to 30 ° C. and the environmental temperature is about plus or minus 0.2 mm. At this time, the bonding member 30 functions as a buffer layer that relieves stress. Therefore, it is possible to suppress a defect that warpage or a crack occurs in the glass composite 10. On the other hand, in the case of the glass insert molded product as shown in the conventional example, since stress is applied due to the difference in expansion and contraction of the frame and the glass member, it is impossible to put the glass composite to practical use with a material having a large difference in linear expansion coefficient. there were.

Although various different kinds of materials can be applied as the frame 20 in the glass composite 10 in the present embodiment, it is preferable to use a molding resin in view of ease of shape processing. The resin material is more easily molded of a thermoplastic resin, and for example, polycarbonate (PC) or polymethyl methacrylate (PMMA) can be used. The frame 20 has a side wall portion 20a opposed to the side surface 11a of the glass member 11, and the side surface 11a of the glass member 11 and the side wall portion 20a form a filling portion 40 for filling the adhesive member 30 with a space. It is preferable that the adhesive member 30 be filled in the filling portion 40 and the side surfaces of the glass member 11 and the frame 20 be adhered. In this manner, the frame 20 is formed of a molding resin and has a complex housing shape and a hole for a functional part without the adhesive member 30 being excessively compressed or causing a gap in the filling portion 40. In addition, the glass member 11 with good visibility can be fixed properly.

The bonding member 30 is preferably a transparent resin that transmits visible light. If a transparent type resin that transmits visible light is used for the bonding member 30, the boundary with the glass member 11 is not noticeable, and it can be integrated almost to form a translucent region, and a transparent glass composite can be obtained visually Can. Furthermore, when it combines with the frame 20 of transparent resin, it can be set as the glass complex 10 in which the whole is transparent. However, as described later, for example, when the decoration area extends to the position of the bonding member 30, the bonding member 30 may not be translucent, and the material is not limited to the transparent resin. The formation of the decorative area (non-light transmitting area) can be performed by printing or the like.

Further, it is preferable to use an ultraviolet curable resin which is a one-component cold-setting adhesive for the bonding member 30. The UV curable resin can be cured in a short time, and the residual stress is small because there is little temperature change and volume shrinkage at the time of bonding. Furthermore, if the side surface 11a of the glass member 11 is bonded, the stress difference on the front and back can be reduced. Therefore, it does not warp stably. Moreover, the process of bonding the glass member 11 and the frame 20 is simple, and the mass productivity is excellent. In addition to the room temperature curing type, it is possible to use a thermosetting type ultraviolet curing resin. If the shrinkage is low and the stress is low, the residual stress at the time of bonding is small, and therefore, it is possible to use a thermosetting, ultraviolet curing resin such as urethane, acrylic or epoxy.

In the glass composite 10 according to the present embodiment, the glass member 11 and the frame 20 are fixed by providing the filling portion 40 for filling the adhesive member 30. In this way, the adhesive member 30 is not excessively compressed. The width of the filling portion 40 may be changed in the thickness direction of the flat glass plate, and may be a triangle or other shape as well as a rectangle when viewed in cross section. The width of the filling portion 40 is an average representative size.

In the present embodiment, the extension 20b does not have to be fixed to the glass member 11 in a region in contact with the rear surface peripheral edge of the glass member 11, but rather not to be fixed to the rear surface of the glass member 11. desirable. In the glass insert molded product in which the flat glass plate and the frame are directly fixed to each other as shown in the conventional example, a region for supporting and fixing the back surface of the glass is generated in principle, so the residual stress in the fixed region can not be ignored. The residual stress on the back surface can be completely eliminated in the non-sticking structure. In the case where the glass member 11 and the frame 20 are disposed using a suction jig and the adhesive member 30 is applied to the filling portion 40, the adhesive member 30 wraps around the back surface peripheral edge of the glass member 11. In addition, the glass member 11 having good visibility can be stably fixed to the complicated case-shaped frame 20 formed of the molding resin. Furthermore, it is possible to suppress peeling of the glass member 11, cracking of the frame 20, cracking, and distortion with respect to changes in manufacturing environment temperature or impact when falling.

When the glass member 11 is bonded to the frame 20 by the bonding member 30, the bonding member 30 is liquid. In particular, an ultraviolet-curable adhesive resin that can be used as a sealing material is also characterized in that it can not be used as a pinhole because its viscosity is low and its volumetric shrinkage at bonding is small. Therefore, unlike the glass insert molding, the glass composite 10 in the present embodiment has no pinholes, and is optimal when constructing a watertight housing.

In addition to the watertight structure, the bonding member 30 may have a structure that is applied to only a few places necessary for fixing. In the input device 1 as shown in FIG. 3, the watertight structure of the glass composite 10 is not required. Similarly, the extended portion 20b may partially contact the back surface of the glass as necessary, or may not be disposed in a symmetrical manner on the four sides of the rectangular glass member 11. Furthermore, it goes without saying that the invention is not limited to the rectangular glass member 11 as shown in FIG.

The frame 20 may be a translucent member, or the whole may be a colored non-translucent member. For example, a resin material previously colored in a desired color can be used. The outer shape of the frame member 20 is not limited to the first embodiment shown in FIGS. 1 to 3. For example, the openings 21 and 22 may not be formed, or may have a curved or flat outer shape. FIG. 4 shows a modification of the glass composite 10 having the frame 20 having only a flat plate portion.

Second Embodiment
FIG. 5 is a schematic vertical sectional view showing the input device 1 in the second embodiment of the present invention. A different point from the input device 1 in the first embodiment is that a translucent lower resistance film (not shown) such as ITO is formed on the glass composite 10 and formed with an adhesive between it and the upper substrate 63. The spacer layer 64 is provided, and the lower resistive film and the upper resistive film (not shown) of the upper substrate 63 face each other with the air gap 65 interposed therebetween. The upper substrate 63 usually has a configuration in which the surface base material is further fixed, but is omitted in FIG.

As a method of forming the translucent lower resistance film on the glass composite 10, the film can be formed directly on the glass composite 10 by vapor deposition, sputtering or the like. When forming ITO into a film by vapor deposition or sputtering, it is made for the glass member 11 and the adhesion member 30 and the frame 20 not to have a steep level | step difference in a film surface. In this way, it is possible to prevent disconnection of the thin resistive film. Besides vapor deposition and sputtering, there is a method in which only ITO is transferred from a film formed in advance by an adhesive layer, and a method in which a liquid material is applied. In the case of these methods, there is less concern about disconnection.

With such a structure, since the glass composite 10 also serves as the lower substrate constituting the resistive touch panel while the glass member 11 having excellent optical characteristics is used in the display device screen region, the number of laminated substrates is Thus, it is possible to obtain the input device 1 which is reduced and whose visibility is better.

Third Embodiment
FIG. 6 is a schematic longitudinal sectional view showing a glass composite 10 according to a third embodiment of the present invention, and FIG. 7 is a schematic longitudinal sectional view showing an input device 1 in which the glass composite 10 according to the third embodiment is used. FIG.

In the present embodiment, as shown in FIG. 6, the side surface 11a of the glass member 11 constituting the glass composite 10 is formed into a shape having a notch 11c by grinding. Here, the notch 11c is a part of the side surface 11a, and means an additional grinding process area. Further, the frame 20 has an extending portion 20c formed in the side wall portion 20a. The extending portion 20 c is a part of the side wall portion 20 a of the frame 20. Therefore, since the extension part 20c of the frame 20 does not protrude on the back surface of the glass member 11, the back surface peripheral part of the glass member 11 can be made flat. In addition, since the side surface 11a of the glass member 11 is ground, the thickness of the glass member 11 is preferably 0.7 mm to 1.1 mm. As shown in FIG. 6, in order to fill the adhesive member 30 into the filling portion 40, it is a simple method to apply the adhesive member 30 using a material which does not adhere to the adhesive member 30 as a jig. For example, polyethylene (PE) can be used for the jig. Therefore, regardless of the processing accuracy of the glass member 11 and the frame body 20, the gap between the both can be filled with the bonding member 30, so that it is suitable for mass production of the glass composite 10 with flat both sides and no gap.

As shown in FIG. 7, the glass composite 10 in the present embodiment has a sensor substrate 70 on which an electrode for detecting capacitance is formed, using the glass composite 10 as a base material, and It is most suitable for the input device 1 of the capacitive touch panel in which the sensor substrate 70 is bonded via the adhesive layer 71. As a result, in the glass composite 10, the frame 20 doubles as the exterior, and the glass member 11 disposed on the display screen is superior in optical characteristics as compared to the resin base material, and therefore, the visibility is excellent. Therefore, the input device 1 with good visibility of the display unit can be realized.

The sensor substrate 70 has the upper electrode layer and the lower electrode layer (not shown) facing each other through the base material, and detects a change in signal due to the capacitance between the electrode layer and the finger when the finger approaches. Capacitive sensor. A sensor protection material 80 is fixed to the sensor substrate 70 by the adhesive layer 72 for the purpose of protection in the assembly process of the input device 1 and the process of incorporating the input device 1 into the electronic device.

Further, in the case where the sensor substrate 70 uses a resin film such as PET as a base, the glass composite 10 has a structure in which the glass composite 10 is bonded to the sensor substrate 70 via the adhesive layer 71. Even so, the scattering of fragments can be prevented.

Moreover, in FIG. 7, it is more desirable to set it as the structure which further adhered the surface protection material to the surface of the glass composite body 10. FIG. The surface protection material is polyethylene terephthalate (PET) or the like with a hard coating, and is fixed via an adhesive layer. In this way, scattering of fragments due to broken glass can be prevented.

Moreover, the glass composite 10 and the surface protective material can be made into a non-translucent decorative layer (decorative layer) by a colored layer except for the display device screen area. In order to add a non-light transmitting decorative layer, a method of transferring a pre-printed colored layer is relatively simple. The non-light transmitting decorative layer may be on the front surface side (input operation surface side) or on the back surface side (side on which the sensor substrate 70 is fixed).

In the present embodiment, in addition to fixing the sensor protection material 80 by the adhesive layer 72, a structure may be used in which a protective resin is applied by printing or the like. Further, the notch portion 11c and the extension portion 20c may extend over the entire circumference of the side surface 11a of the glass member 11, or may be formed on a part of the side surface 11a.

In the present embodiment, as long as the notch 11c and the extension 20c have a shape facing each other, the front and back may be on either side, and the outer shape of the frame 20 is a planar shape It is also good. FIG. 8 and FIG. 9 show those modifications. Moreover, the structure which added the extension part 20b shown in FIG. 2 may be sufficient. However, as shown in FIGS. 6 to 9, in the case of the structure in which the extension 20b is not added, the frame 20 does not protrude from the back peripheral edge of the glass member 11, so both peripheral edges of the glass member 11 can be made flat.

The notch 11 c may be ground at a right angle to provide the notch 11 c on the side surface 11 a of the glass member 11, but it is more practical to have a roundness according to this. It is practical to process the extension 20c into a similar shape.

Fourth Embodiment
FIG. 10 is a schematic vertical sectional view showing a glass composite 10 according to the fourth embodiment. Unlike the glass composite 10 in the third embodiment, the notch 11 c and the extension 20 c are designed to be in contact with each other at the intermediate portion 41. In this case, when the adhesive member 30 is filled in the filling portion 40, the notch 11c and the extension 20c are in contact with each other at the intermediate portion 41, which further simplifies the bonding process.

The adhesive members 30 and 31 may be made of the same resin material, but it is preferable to reverse the upper and lower surfaces in two steps of the application process. It is also possible to apply the adhesive members 30, 31 simultaneously.

Fifth Embodiment
FIG. 11 is a schematic vertical sectional view showing a glass composite 10 according to the fifth embodiment. It is set as the simple structure which abbreviate | omitted the structure which provided the notch part 11c and the extension part 20c in 3rd Embodiment. For example, if the adhesive member 30 is applied using polyethylene (PE) which does not adhere to the adhesive member 30 as a jig, the glass composite 10 having such a simple structure can be manufactured. Since it is not necessary to grind the side surface 11a of the glass member 11 so as to provide the notch 11c, the thickness of the glass member 11 can be reduced to 0.3 mm to 0.7 mm.

Even when the input device 1 is not provided, the display unit for displaying information can be an electronic device case using the glass member 11. The glass composite 10 in the first to fifth embodiments is also applicable as such an electronic device housing. Therefore, the electronic device using the glass composite 10 with favorable visibility can be provided.

Sixth Embodiment
The glass composite in the sixth embodiment shown in FIG. 12 is configured to have a glass member 90, an upper frame (frame) 91 and a lower frame 92.

Similar to the glass member 11 described with reference to FIG. 1 and the like, the glass member 90 is not particularly limited in kind, such as normal glass and tempered glass. Further, the upper frame 91 and the lower frame 92 are resin molded products as in the case of the frame 20 described with reference to FIG.

As shown in FIGS. 12 (a) and 12 (b), the glass member 90 has a first flat surface (upper surface) 90a parallel to the XY plane and facing in the thickness direction (Z) with an interval, and The flat plate surface (lower surface) 90b of 2 and the four side surfaces 90c to 90f surrounding the periphery of the first flat plate surface 90a and the second flat plate surface 90b are flat. The first flat surface 90 a constitutes an input operation surface of the input device.

As shown in FIGS. 12A and 12B, the side surfaces 90c to 90f are each formed by a first inclined surface 93 having a first inclination angle θ1. Here, the first inclination angle θ1 is indicated by the inclination angle from the second flat surface 90b. As shown in FIGS. 12 (a) and 12 (b), the vertical cross section of the glass member 90 is trapezoidal.

As shown in FIGS. 12C and 12D, the upper frame 91 is formed with a through hole 91a at the center thereof, which penetrates from the upper surface to the lower surface. The through hole 91a is formed so as to be surrounded by the four side wall portions 91c to 91f.

As shown in FIGS. 12C and 12D, the side wall portions 91c to 91f are formed by a second inclined surface 94 having a second inclination angle θ2. Here, the second inclination angle θ2 is indicated by an inclination angle from the lower surface 91b of the through hole 91a.

Here, in the present embodiment, the first inclination angle θ1 and the second inclination angle θ2 have different values, and the first inclination angle θ1> the second inclination angle θ2. That is, the first inclination angle θ1 is steeper, and the second inclination angle θ2 is gentler.

Although the inclination angles θ1 and θ2 are not limited, for example, the first inclination angle θ1 is adjusted to about 45 °, and the second inclination angle θ2 is adjusted to about 30 °.

Here, the size of the first flat surface 90a of the glass member 90 shown in FIGS. 12A and 12B is the size of the upper surface 91i of the through hole 91a of the upper frame 91 shown in FIGS. 12C and 12D. Is the same as That is, it is located around the corner (edge) D between each side 90c to 90f of the glass member 90 and the first flat surface 90a, each side wall 91c to 91f of the upper frame 91, and the through hole 91a. A corner (edge) E between the first flat surface (upper surface) 91g and the first flat surface (upper surface) 91g is formed at a position substantially coincident with the Z direction. On the other hand, due to the difference between the inclination angles θ1 and θ2, the size of the second flat surface 90b of the glass member 90 is smaller than the size of the lower surface 91b of the through hole 91a of the upper frame 91.

As shown in FIGS. 12C and 12D, the first flat surface (upper surface) 91g and the second flat surface (lower surface) 91h extending around the through hole 91a of the upper frame 91 are both in the XY plane. It is a parallel plane.

As shown in FIGS. 12E and 12F, the lower frame 92 is formed with a through hole 92a at the center thereof. The through hole 92a is formed to be surrounded by the four side wall portions 92c to 92f. The side wall portions 92c to 92f of the lower frame 92 are substantially vertical planes formed in parallel to the Z direction.

Here, the size of the through hole 92a of the lower frame 92 is slightly smaller than the size of the through hole 91a of the upper frame 91 (the size at the upper surface 91i). However, since the lower frame 92 plays a role of supporting the glass member 90 from the lower surface, it is sufficient that the lower frame 92 has a configuration in which a part of the lower frame 92 opposes the glass member 90 in the Z direction.

Further, the size surrounding the outer side surface J of the lower frame 92 is slightly smaller than the size surrounding the outer side surface K of the upper frame 91.

As shown in FIGS. 12 (e) and 12 (f), the first flat surface (upper surface) 92g and the second flat surface (lower surface) 92h extending around the through hole 92a of the lower frame 92 are in the XY plane. It is a parallel plane. In the embodiment of FIGS. 12 (e) and 12 (f), a recess 92i is formed in the first flat surface (upper surface) 92g of the lower frame 92.

FIG. 13 shows a schematic vertical sectional view of an input device 96 provided with a glass composite 95 obtained by joining the glass member 90, the upper frame 91 and the lower frame 92 shown in FIG.

Here, a method of manufacturing the glass composite 95 will be described with reference to FIG.
First, with the upper frame 91 shown in FIGS. 12 (c) and 12 (d) turned upside down by 180 degrees (that is, with the first flat surface 91g on the lower side and the second flat surface 91h on the upper side), It is installed on the flat surface 97a of the pedestal 97 shown in (a). For this reason, in the state where the upper frame 91 is installed on the pedestal 97, the through holes 91a of the upper frame 91 are gradually expanded from the lower surface side to the upper surface side.

Subsequently, the glass member 90 shown in FIGS. 12 (a) and 12 (b) is turned upside down by 180 degrees in the same manner as the upper frame 91 (ie, the first flat surface 90a is on the lower side, the second The flat plate surface 90b is turned upside), and is inserted into the through hole 91a of the upper frame 91.

At this time, as described with reference to FIG. 12, the second inclination angles θ2 of the side wall portions 91 c to 91 h surrounding the through holes 91 a of the upper frame 91 are the first of the side surfaces 90 c to 90 h of the glass member 90. Being gentler than the inclination angle θ1, corner portions (edges) D between the side surfaces 90c to 90f of the glass member 90 and the first flat surface 90a, and side walls 91c to 91f of the upper frame 91. And the first flat surface 91g located around the through hole 91a are formed to coincide with each other in the Z direction. The corners D of the side surfaces 90c to 90f of the glass member 90 and the corners E of the side walls 91c to 91f of the upper frame 91 coincide with each other on the flat surface 97a of the pedestal 97. (Abut). In the case of this embodiment, even if the glass member 90 is inserted into the through hole 91 a with the center of the glass member 90 and the center of the through hole 91 a of the upper frame 91 slightly shifted, the side surface of the glass member 90 penetrates It is guided by the side wall of the hole 91a and moved, and the corner D of each side 90c to 90f of the glass member 90 and the corner E of each side 91c to 91f of the upper frame 91 are placed on the flat surface 97a of the support 97 Can be matched with.

As a result, the first flat surface 90a of the glass member 90 and the first flat surface 91g of the upper frame 91 can be made to coincide with one another, and the plane direction of the glass member 90 with respect to the upper frame 91 (X, Y Can be performed easily and accurately (see also FIG. 20 (b)).

In the glass member 90, the corner portions D of the side surfaces 90c to 90f abut the corner portions E of the side walls 91c to 91f of the upper frame 91, and are fitted into the upper frame 91. Further, as shown in FIG. 20B, gaps 99 can be formed between the side surfaces 90c to 90f of the glass member 90 and the side walls 91c to 91f of the upper frame 91, and bonding is performed in the gaps 99. By filling the member 98, the glass member 90 and the upper frame 91 can be joined on the side surfaces. The size (width) of the opening 99a of the gap 99 can be adjusted to, for example, about 0.125 mm to 0.170 mm.

Here, as shown in FIG. 20A, before the glass member 90 is fitted into the upper frame 91, the bonding members 98 are formed in advance by using the side surfaces 90c to 90f of the glass member 90 (or the side walls 91c to 91c of the upper frame 91). 91f), or after the glass member 90 is fitted into the upper frame 91 as shown in FIG. 20 (b), the bonding member 98 may be filled in the gap 99.

The adhesive member 98 is preferably an ultraviolet curable resin like the adhesive member 30 shown in FIGS. 1 and 2, etc., and a room temperature curable type or a thermosetting type ultraviolet curable resin can be used.

Therefore, in the state shown in FIG. 20B, ultraviolet irradiation or ultraviolet irradiation and heat curing are performed.

Subsequently, as shown in FIG. 20B, the lower frame 92 is joined to the second flat surface 91 h of the upper frame 91 via an adhesive layer (not shown). In the input device 96 shown in FIG. 13 and FIG. 14, the second transparent flat surface 90 b of the glass member 90 is optically transparent adhesive layer (OCA) 102, sensor film (sensor substrate) 100, optically transparent adhesive layer (OCA) 103, And the protective film 101 is laminated.

The lower frame 92 is bonded to the upper frame 91 and the protective film 101 via the adhesive layer 104.

The recess 92i formed in the lower frame 92 shown in FIGS. 12 (e) and 12 (f) is a portion for drawing out a flexible printed circuit (not shown) electrically connected to the sensor film 100.

In the glass composite 95 formed by bonding the glass member 90, the upper frame 91, and the lower frame 92 shown in FIG. 12, the glass member 90 may be fitted to the upper frame 91 on the side of the first flat surface 90a, 91g without a gap. Thus, the positioning of the glass member 90 relative to the upper frame 91 in the plane direction (X, Y) can be performed easily and with high accuracy. In addition, gaps 99 can be provided between the side surfaces 90c to 90f of the glass member 90 and the side walls 91c to 91f of the upper frame 91 so that the adhesive member 98 can be filled. Can be properly joined via the adhesive member 98.

Further, even if the quality of the glass member 90 and the upper frame 91 is somewhat different, in the present embodiment, the gap 99 is reliably held between the side surfaces 90c to 90f of the glass member 90 and the side walls 91c to 91f of the upper frame 91. Since the gap 99 has a tapered shape, the inside of the gap 99 can be surely filled even if the shape, interval, and the like of the gap 99 change. That is, since the gap 99 is tapered, the bonding member 98 can reliably fill at least the space narrowing tapered tip end even if the filling amount of the bonding member 98 is constant, and the glass member 90 and the upper frame 91 Can be properly joined by the adhesive member 98. Therefore, according to the present embodiment, the filling amount of the bonding member 98 can be managed uniformly.

In this embodiment, the corner portions D of the side surfaces 90c to 90f of the glass member 90 are in contact with the corner portions E of the side walls 91c to 91f of the upper frame 91. Here, “contact” is not only the state where the glass member 90 is fitted to the upper frame 91, but also the corner D of each side 90c to 90f and the corner E of each side wall 91c to 91f of the upper frame 91. And a close state with a minute interval (specifically, several tens of μm or less).

In the embodiments shown in FIGS. 12 to 14, the lower frame 92 shown in FIGS. 12 (e) and 12 (f) is provided on the lower surface side of the glass member 90. Then, both side surfaces of the glass member 90 are inclined so that the width dimension of the glass member 90 gradually becomes smaller from the lower surface side (the second flat surface 90b side) to the upper surface side (the first flat surface 90a side) ing. Furthermore, in the both side wall portions of the upper frame 91, the distance between the side wall portions gradually decreases from the lower surface side (the second flat surface 91h side) to the upper surface side (the first flat surface 91g side). Along with the inclination, the inclination angle θ2 is gentler than the inclination angle θ1 of the side surfaces 90c to 90f of the glass member 90. Thus, the volume of the gap 99 between the inclination angle θ1 and the inclination angle θ2 can be increased, and more adhesive members 98 can be filled. Therefore, when an impact or the like is applied, the glass member 90 for both upper and lower surfaces is The omission can be properly prevented. Thus, a glass composite 95 excellent in impact resistance can be obtained.

In addition, also in the glass composite body 95 which joins the glass member 90, the upper frame 91, and the lower frame 92 shown in FIG. 12, the adhesive member 98 itself which joins between the glass member 90 and the upper frame 91 absorbs and relieves stress. Act as a layer. Thus, in the present embodiment, even if the upper frame 91 and the glass member 90 expand and contract due to temperature change, the stress applied from the glass member 90 to the upper frame 91 can be relaxed. Therefore, it is possible to suppress a defect that warpage or a crack occurs in the glass composite body 95.

Moreover, although the planar shape of the 1st flat surface 90a of the glass member 90 was made into rectangular shape in FIG. 12, the shape of the 1st flat surface 90a is not limited. Naturally, if the shape of the glass member 90 is changed, the shape of the through hole 91a of the upper frame 91 supporting the glass member 90 from the side is also changed accordingly.

Further, the upper frame 91 does not have to be a flat plate having a through hole 91a at the center as shown in FIGS. 12 (c) and 12 (d), and can be curved and it incorporates a glass composite 95 It may double as a housing of the input device 96 or other electronic devices.

Seventh Embodiment
In the seventh embodiment shown in FIG. 15, the side surfaces 90c to 90f (only the side surface 90f is shown in FIG. 15) of the glass member 90 are formed by the first inclined surface 93 having the first inclination angle θ1. ing.

On the other hand, the side walls 91c to 91f (only the side wall 91f is shown in FIG. 15) of the upper frame 91 have a first inclined surface 93 having a first inclination angle .theta.1 and an angle larger than the first inclination angle .theta.1. It is formed by a second inclined surface 94 having a small second inclination angle θ2. The first inclined surface 93 formed on the upper frame 91 is formed halfway from the corner E with the first flat surface (upper surface) 91g to the lower direction, and the second flat surface (lower surface) 91h and on the way The second inclined surface 94 is formed up to the corner F of the

In the embodiment shown in FIG. 15, the distance between the first inclined surface 93 constituting each side wall portion 91c to 91f of the upper frame 91 and each side surface 90c to 90f formed by the first inclined surface 93 of the glass member 90 is It will be in the state of contact. On the other hand, gaps 105 are formed between the second inclined surfaces 94 constituting the side walls 91c to 91f of the upper frame 91 and the side surfaces 90c to 90f formed by the first inclined surfaces 93 of the glass member 90. The adhesive member 98 can be filled in the gap 105.

In the embodiment shown in FIG. 15, when the glass member 90 is fitted into the upper frame 91 as shown in FIGS. 20 (a) and 20 (b), the side surfaces 90c to 90f of the glass member 90 are side walls of the upper frame 91. Guided by sliding on the first inclined surface 93 of the portions 91c to 91f, the glass member 90 can be easily and appropriately fitted into the upper frame 91, and the planar direction (X, Positioning accuracy to Y) can be effectively improved. In addition, it is easy to form the opening 105 a of the gap 105 into a sufficiently wide shape while appropriately maintaining the strength between the glass member 90 and the upper frame 91. That is, in the embodiment of FIG. 15, since the side walls 91c to 91f of the upper frame 91 are not all formed by the second inclined surface 94 with a gentle angle, the second inclined surface 94 is entirely formed. The space of the through hole 91a can be made smaller on the side of the first flat plate surface 91g (upper surface side) than in the case where it is formed. In particular, as shown in FIG. 15, the inclination angles of the side wall portions 91c to 91f of the upper frame 91 on the side of the first flat surface 90a serving as the input operation surface of the glass member 90 are the side surfaces 90c to 90f of the glass member 90 and By matching, the strength of the upper frame 91 on the input operation surface side can be increased. Therefore, the inclination angle θ2 of the second inclined surface 94 located on the back side of the input operation surface is formed smaller (more loose angle) than the configuration of FIG. 14, and the opening 105a of the gap 105 is made larger. Even if formed, the strength can be maintained properly. Therefore, the adhesive member 98 can be easily filled in the gap 105 while maintaining the strength.

In addition, even if the filling amount of the bonding member 98 varies, the bonding member 98 remains in the gap 105, and the bonding member 98 adheres to a portion where the glass member 90 and the upper frame 91 are in contact at the first inclined surface 93. Can be suppressed, and the bonding between the glass member 90 and the upper frame 91 by the bonding member 98 can be stabilized.

In the embodiment shown in FIG. 15, the side wall portions 91c to 91f of the upper frame 91 are formed of the first inclined surface 93 and the second inclined surface 94, but the side surfaces 90c to 90f of the glass member 90 are formed of the second It is also possible to form by the inclined surface 94 of 1 and the 1st inclined surface 93. FIG. However, if the side surfaces 90c to 90f of the glass member 90 are constituted by a plurality of inclined surfaces having different inclination angles, the side surfaces 90c to 90f can not be cut out at one time when cutting out from the glass flat plate to each glass member 90 The cost goes up. Therefore, the manufacturing cost can be reduced by forming the side wall portions 91c to 91f of the upper frame 91 which is a resin molded product with a plurality of different inclined surfaces 93 and 94.

Also in the embodiment of FIG. 15, the bonding member 98 itself for bonding between the glass member 90 and the upper frame 91 acts as a buffer layer for absorbing and relieving stress. Thus, in the present embodiment, even if the upper frame 91 and the glass member 90 expand and contract due to temperature change, the stress applied from the glass member 90 to the upper frame 91 can be relaxed. Therefore, it is possible to suppress a defect that warpage or a crack occurs in the glass composite body 95.

Eighth Embodiment
In the glass composite according to the eighth embodiment shown in FIG. 16, the components are the same as in FIG. 12, but the side surfaces 90c to 90f (only the side surface 90f is shown in FIG. 16) of the glass member 90 are the first. A corner D between the inclined surface 93 and the first flat surface 90 a is a chamfered surface 110, and an intersection H between the chamfered surface 110 and the first inclined surface 93 corresponds to each side wall of the upper frame 91. The contact positions with the portions 91c to 91f (only the side wall portion 91f is shown in FIG. 16) are set.

In the embodiment shown in FIG. 16, the contact positions of the side surfaces 90 c to 90 f of the glass member 90 and the side walls 91 c to 91 f of the upper frame 91 are the first flat surface 90 a of the glass member 90 and the upper frame 91. The position is slightly recessed from the first flat surface 91g of Even in the configuration of FIG. 16, the side surfaces 90 c to 90 f of the glass member 90 and the side walls 91 c to 91 f of the upper frame 91 abut each other to position the glass member 90 relative to the upper frame 91 in the planar direction (X, Y). It can be done easily and with high accuracy.

In addition, a gap G is formed between the chamfered surface 110 and the upper frame 91, and even if the bonding member 98 slightly leaks into the gap G, the gap G is formed on the first flat surface 90a of the glass member 90. Can be suppressed, and the high flatness of the glass member 90 can be maintained.

The chamfering process in FIG. 16 is not limited to the deburring process.
The chamfering process of FIG. 16 can be applied to the embodiment of FIG.

FIG. 17 shows a modification of the glass composite shown in FIG. 15 and FIG. In FIG. 17, the side surfaces 90c to 90f (only the side surface 90f is shown in FIG. 17) of the glass member 90 are formed by a first inclined surface 93 having a first inclination angle θ1.

On the other hand, the side walls 91c to 91f (only the side wall 91f is shown in FIG. 17) of the upper frame 91 have a fifth inclined surface 106 having a fifth inclination angle .theta.5 and a second inclination angle .theta.2 It is formed by two inclined surfaces 94. The fifth inclined surface 106 formed on the upper frame 91 is formed halfway from the corner with the first flat surface (upper surface) 91 g to the lower direction, and the second inclined surface 94 is formed via the bending portion L. Is continuously formed below the fifth inclined surface 106. As described above, the side wall portions 91c to 91f are bent at different inclination angles in the middle.

Here, the relationship of first inclination angle θ1> fifth inclination angle θ5> second inclination angle θ2 is established.

As shown in FIG. 17, a first gap 107 is formed between the side surfaces 90c to 90f of the glass member 90 and the fifth inclined surfaces 106 of the side walls 91c to 91f of the upper frame 91, and the glass member is formed. A second gap 108 is formed between each side surface 90 c to 90 f of 90 and the second inclined surface 94 of each side wall portion 91 c to 91 f of the upper frame 91. The difference (θ1-θ2) between the side surfaces 90c to 90f of the glass member 90 and the second inclined surfaces 94 of the side walls 91c to 91f of the upper frame 91 in the second gap 108 is The inclination angle difference (θ1−θ5) between the side surfaces 90c to 90f of the glass member 90 in the first gap 107 and the fifth inclined surface 106 on the side walls 91c to 91f of the upper frame 91 is larger.

In the embodiment of FIG. 15 described above, the side walls 91c to 91f of the upper frame 91 are formed by the first inclined surface 93 and the second inclined surface 94, and the first inclination of the upper frame 91 is determined. The side surfaces 90c to 90f formed by the surface 93 and the first inclined surface 93 of the glass member 90 are in contact (surface contact). In such a configuration, when the dimensional dispersion of the upper frame 91 occurs, in particular, if the dimensional dispersion of the first inclined surface 93 in contact with the side surfaces 90c to 90f of the glass member 90 becomes large, the side walls 91c to Surface contact can not be made on the entire tetragonal surface between the first inclined surface 93 at 91 f and the side surfaces 90 c to 90 f of the glass member 90. At this time, the first inclined surfaces 93 of the side walls 91c to 91f of the upper frame 91 become closer to the side surfaces 90c to 90f of the glass member 90 (the first inclination angle .theta.1 becomes larger (the Or if the distance between the first inclined surfaces 93 located on both sides of the upper frame 91 becomes large, etc.), the glass member 90 is forcibly inserted into the upper frame 91, and in particular, the upper frame The stress strain is generated in 91 to cause deformation or cracking, and furthermore, the glass member 90 can not be properly inserted into the upper frame 91, and the first flat surface 90a of the glass member and the first flat surface of the upper frame 91 It may be difficult to produce a desired glass composite, for example, because it is difficult to make 91 g flush with one another.

Therefore, in the configuration of FIG. 17, as in FIG. 16, the chamfered surface 110 is formed on the glass member 90, and the intersection H where the chamfered surface 110 and the first inclined surface 93 intersect each other A portion of each of the side wall portions 91c to 91f of the frame 91 in contact with the intersection portion H is formed by the fifth inclined surface 106 smaller than the first inclination angle θ1. As a result, even if some dimensional variations occur in the upper frame 91, the glass member 90 can be inserted into the through holes 91a of the upper frame 91 without difficulty, and the side surfaces 90c to 90f of the glass member 90 and the side walls of the upper frame 91 Since generation of stress distortion can be suppressed between 91c to 91f, deformation, cracking and the like are less likely to occur, and manufacturing efficiency can be improved. In addition, the alignment of the glass member 90 with the upper frame 91 can be performed easily and accurately. Furthermore, a relatively large second gap 108 for filling the bonding member 98 can be formed between the side surfaces 90c to 90f of the glass member 90 and the second inclined surfaces 94 of the side walls 91c to 91f of the upper frame 91. The adhesive member 98 can be sufficiently filled in the second gap 108, and the glass member 90 and the upper frame 91 can be appropriately adhered. In addition, a minute first gap 107 is easily formed between the side surfaces 90 c to 90 f of the glass member 90 and the fifth inclined surfaces 106 of the side walls 91 c to 91 f of the upper frame 91. Also, since the bonding member 98 is slightly inserted, the glass member 90 and the upper frame 91 can be bonded also on the side of the first flat surfaces 90a and 91g. Further, in the present embodiment, since only a slight bonding member 98 is inserted into the first gap 107 and the gap G is formed between the chamfered surface 110 and the upper frame 91, the bonding member 98 is formed. It is possible to effectively prevent leakage to the side of the first flat surface 90 a which is the input operation surface of the glass member 90.

The ninth embodiment
In the ninth embodiment shown in FIG. 18, a frame 115 in which an upper frame 91 and a lower frame 92 shown in FIG. 12 are integrated is used.

The frame 115 is provided with a space 115a to which the glass member 90 can be attached, and the side wall portions 115b and 115c surrounding the space 115a are formed by a third inclined surface 130 having a third inclination angle θ3.

The frame 115 is provided with extension parts 115 d and 115 d for receiving the lower surface (second flat surface 90 b) of the glass member 90.

The side surfaces 90c to 90f (only the side surfaces 90d and 90f are shown in FIG. 18) of the glass member 90 are formed by a fourth inclined surface 131 having a fourth inclination angle θ4. The inclination angles θ3 and θ4 of the third inclined surface 130 and the fourth inclined surface 131 are different. As shown in FIG. 18, the third inclination angle θ3 is gentler than the fourth inclination angle θ4.

The frame body 115 is an injection-molded product of resin, and is formed of a material having flexibility (flexibility), a shape, and a film thickness. Thus, it is possible to bend the frame 115 so that the opening 115a1 of the space 115a of the frame 115 is expanded. The frame 115 is bent to expand the opening 115a1, and the space 115a is expanded. The glass member 90 is attached. At this time, as shown in FIG. 20A, adhesive members 98 are applied in advance to the side surfaces 90c to 90f of the glass member 90 or the side walls of the frame 115, as shown in FIG. When the glass member 90 is mounted in the space 115 a of the frame 115, it is preferable that the bonding member 98 be filled in the gap 116 between the glass member 90 and the frame 115.

In the actual manufacturing stage, using the pedestal 97 whose upper surface is the flat surface 97a shown in FIG. 20 (a), the glass member 90 is inverted 180 degrees up and down with the state of FIG. 18 on the flat surface 97a of the pedestal 97 Install in a state of being allowed. Further, the frame 115 is turned upside down by 180 ° with respect to FIG. 18 and is curved to widen the opening 115 a 1 to place the glass member 90 in the space 115 a of the frame 115. By performing the above operation on the flat surface 97 a of the receiving table 97, the first flat surface 90 a of the glass member 90 and the first flat surface 115 e of the frame 115 can be aligned on the same surface with high accuracy. Moreover, in the present embodiment, by fitting the glass member 90 into the frame 115, the alignment of the glass member 90 with respect to the frame 115 in the plane direction (X, Y) can be performed with high accuracy and easily. Further, as shown in FIG. 18, since the inclination angles θ3 and θ4 between the side faces 90c to 90f of the glass member 90 and the side walls of the frame 115 are different, they are sandwiched between the side faces 90c to 90f and the side walls. The gap 116 can be formed, and the adhesive member 98 can be appropriately filled in the gap 116.

If the bonding member 98 is an ultraviolet curing resin, after the glass member 90 is installed in the space 115 a of the frame 115, ultraviolet irradiation is performed. At this time, for example, in the case where the decorative layer 117 is formed on the second flat surface 90 b of the glass member 90, it is difficult to irradiate ultraviolet light from the second flat surface 90 b side. As described above, in the manufacturing process, since the receiving table 97 shown in FIG. 20 is on the side of the first flat surface 90 a of the glass member 90 and the first flat surface 115 e of the frame 115, the first glass member 90 It is also difficult to irradiate ultraviolet light from the flat plate surface 90a side of Therefore, ultraviolet irradiation is performed from the side direction. If the decorative layer 117 is not present, ultraviolet irradiation from the side of the second flat surface 90 b of the glass member 90 is possible.

Unlike FIG. 12, if the frame 115 is integrated as shown in FIG. 18, the number of parts is reduced, and the joining process of the lower frame 92 shown in FIG. 20 (b) is not necessary. If the lower frame 91 and the lower frame 92 are separated, there is an advantage that injection molding of the frame can be easily performed.

The third inclination angle θ3 and the fourth inclination angle θ4 may be equal to the first inclination angle θ1 and the second inclination angle θ2 shown in FIG. 12, but in FIG. Since it is necessary to fit the glass member 90 into the space 115 a of the frame 115 while curving the opening 115 a 1, if the third inclination angle θ 3 and the fourth inclination angle θ 4 are too small, That is, if it is gentle, the workability becomes worse (the glass member 90 becomes difficult to enter into the space 115a). Therefore, it is better to make the third inclination angle θ3 and the fourth inclination angle θ4 larger than the first inclination angle θ1 and the second inclination angle θ2. For example, the third inclination angle θ3 is set to about 50 °, and the fourth inclination angle θ4 is adjusted to about 60 °.

Also in the embodiment of FIG. 18, the bonding member 98 itself for bonding between the glass member 90 and the frame body 115 acts as a buffer layer for absorbing and relieving stress. Thus, in the present embodiment, even if the frame 115 and the glass member 90 expand and contract due to temperature change, the stress applied from the glass member 90 to the frame 115 can be relaxed. Therefore, it is possible to suppress a defect that warpage or a crack occurs in the glass composite 120.

Tenth Embodiment
FIG. 19 shows a configuration in which the side surfaces of the glass member 90 and the upper frame (frame) 91 are joined by an adhesive member 98 without using the lower frame 92 shown in FIGS. 12 (e) and 12 (f). In FIG. 19, the lower frame 92 is made unnecessary by using a high adhesive agent for the adhesive member 98.

As shown in FIG. 19, in the present embodiment, the side surfaces 90c to 90f of the glass member 90 (only the side surfaces 90d and 90f are shown in FIG. 19) and the side walls 91c to 91f of the upper frame (frame) 91 (FIG. At 19, only the side walls 91 d and 91 f are partially in contact (in the configuration of FIG. 19, the corner where the first flat surface 90 a of the glass member 90 intersects with the side surfaces 90 c to 90 f, and the upper frame Contact at the position of the corner where the first flat plate surface 91g of the frame 91 and the side wall portions 91c to 91f cross each other, or the side surfaces 90c to 90f of the glass member 90 are the first as in FIG. The angle D between the inclined surface 93 and the first flat surface 90 a is a chamfered surface 110, and the intersection H between the chamfered surface 110 and the first inclined surface 93 corresponds to each side wall portion of the upper frame 91. 91c to 91f), upper frame (frame) 91 Plane direction of the glass member 90 (X, Y) aligned to can be performed easily and accurately be. Furthermore, as shown in FIG. 19, since the inclination angles θ1 and θ2 of the side faces 90c to 90f of the glass member 90 and the side walls 91c to 91f of the upper frame (frame) 91 are different, the side faces 90c to 90f are different. And the side walls 91c to 91f can form a gap 99, and the bonding member 98 can be appropriately filled in the gap 99.

Also in the embodiment of FIG. 19, the bonding member 98 itself for bonding between the glass member 90 and the upper frame (frame) 91 acts as a buffer layer for absorbing and relieving stress. Thus, in the present embodiment, even if the upper frame (frame) 91 and the glass member 90 expand and contract due to temperature change, the stress applied from the glass member 90 to the upper frame (frame) 91 can be relaxed. Therefore, it is possible to suppress a defect that warpage or a crack occurs in the glass composite 121.

Further, the glass composite 121 shown in the embodiment shown in FIG. 19 may be inverted 180 degrees up and down, and the second flat surface 90b side of the glass member 90 may be used as the operation surface side of the input device (touch panel).

<About an example of a decoration area and a touch panel>
When the glass composite of the present embodiment is used as a touch panel combined with a sensor film of resistance film type, capacitance type or the like, the wiring portion (formed of Ag paste or the like) of the sensor substrate is extended around the input area. Usually, the periphery of the input area is decorated in order to make the wiring part invisible.

In the case where the adhesive member for joining the glass member and the frame is located in this decorated area, the light transmission property of the adhesive member is not a problem, but in the case where the adhesive member is located outside the decorated area For this purpose, the adhesive member needs to be a translucent resin.

FIG. 21 shows an example of the touch panel, where (a) is a plan view and (b) to (d) are schematic longitudinal sectional views taken along the line HH of (a) and viewed from the arrow direction.

As shown in FIGS. 21 (b) to 21 (d), a decorative layer 141 is directly formed by screen printing or the like on the lower surface of the glass member 140 and in the outer peripheral region.

As shown in FIGS. 21 (b) to 21 (d), the glass member 140 is joined to the frame 142 via an adhesive (not shown). The glass composite of FIG. 21 (b) is based on the configuration shown in FIG. 11, and the glass composite of FIG. 21 (c) is based on the configuration shown in FIG. 8; The body is based on the configuration shown in FIG.

In FIG. 21, a portion of the frame 142 is a decorated area (colored area). A central region where the decorative layer 141 of the glass member 140 is not formed is a transparent input region 144.

As shown in FIG. 21, a sensor film 145 is provided under the glass member 140 to constitute a touch panel. Although the glass member 140 and the sensor film 145 are illustrated as having a space, they are actually bonded by an optical transparent adhesive layer (OCA). A liquid crystal display (LCD) (not shown) is disposed on the back side of the touch panel. The display form of the liquid crystal display can be viewed from the input area 144 of the touch panel, and in the present embodiment, the input operation can be performed while viewing the display form displayed in the input area 144.

D, E Corner portion G Gap 1, 96 Input device 10, 95 Glass composite 11, 90 Glass member 11a Side surface 11c Notched portion 20, 115 Frame 20a Side wall portion 20b Extension portion 20c Extension portion 21, 22 Opening 30 31, 98 Adhesive member 40 Filling portion 41 Intermediate portion 60 Detection panel 61, 71, 72 Adhesive layer 62 Lower substrate 63 Upper substrate 64 Spacer layer 65 Air gap 70 Sensor substrate 80 Sensor protective material 90a, 91g First flat surface 90b, 91h Second flat plate surface 90c to 90f Side surface 91 Upper frame 91a Through hole 91c to 91f Side wall 92 Lower frame 93 First inclined surface 94 Second inclined surface 97 Receiving base 99, 105, 107 Gap 100 Sensor film 110 Chamfered Processing surface 115 a Space 115 a 1 Opening 117, 141 Decorative layer 144 Input area

Claims (19)

1. A flat glass member, a frame supporting the glass member, and an adhesive member bonding the glass member to the frame;
   The side surface of the glass member is fixed to the frame through the adhesive member,
   The said adhesive member is a buffer layer which relieves the stress added to the said frame, The glass composite characterized by the above-mentioned.
2. The frame is made of molded resin, and has a side wall facing the side,
   The glass composite according to claim 1, wherein the side surface and the side wall portion are provided with a filling portion for filling the adhesive member.
3. The side surface of the glass member and the side wall portion of the frame are formed with different inclination angles,
   The glass composite according to claim 2, wherein the side surface and the side wall portion partially abut each other, a gap sandwiched between the side surface and the side wall portion is formed, and the bonding member is filled in the gap.
4. The inclination angles of the side surface and the side wall portion are the same halfway and different from each other, and the side surface and the side wall portion having the same inclination angle are in contact with each other, and the side surface and the side wall portion of different inclination angles The glass composite according to claim 3, wherein the adhesive member is filled therebetween.
5. The side wall portion has a first inclined surface having a first inclination angle θ1 and a second inclined surface having a second inclination angle θ2 different from the first inclination angle.
   The glass composite according to claim 4, wherein the first inclined surface and the side surface are in contact with each other, and the adhesive member is filled at least between the second inclined surface and the side surface.
6. At least one of the side surface or the side wall portion is bent in the middle at a different inclination angle, and a gap between the side surface and the side wall portion is a gap between the bending portion and the side surface and the side wall portion. A first gap in the contact direction and a second gap in the direction opposite to the contact direction are provided, and an inclination angle difference between the side surface and the side wall portion in the second gap is The glass composite according to claim 3, wherein the glass composite is larger than the difference in inclination angle between the side surface and the side wall portion in the gap of 1.
7. The glass composite according to claim 6, wherein the side wall portion is bent at different inclination angles halfway.
8. In the side surface, a corner between the inclined surface and the flat surface is a chamfered surface, and at least an intersection of the chamfered surface and the inclined surface is a contact position with the side wall portion. The glass composite of any one of claims 3 to 7.
9. The frame is an upper frame, a lower frame is provided separately from the upper frame, the upper frame and the lower frame are joined, and the lower frame extends to the lower surface side of the glass member The side surface of the glass member is inclined so that the width dimension of the glass member gradually decreases from the lower surface side to the upper surface side, and the side wall portion of the upper frame is from the lower surface side 9. The device according to claim 3, wherein the side wall portion is inclined so that the distance between the side wall portions gradually decreases toward the upper surface side and the inclination angle of the side wall portion is gentler than the inclination angle of the side surface. Glass composite.
10. The frame according to any one of claims 1 to 8, wherein the frame has an extension which is continuous with the side wall, and the extension is provided along the periphery of one surface of the flat surface of the glass member. Glass composite as described.
11. The glass composite according to any one of claims 1 to 10, wherein the adhesive member is a transparent resin that transmits visible light.
12. The glass composite according to any one of claims 1 to 11, wherein the bonding member is an ultraviolet curable resin.
13. The glass composite according to any one of claims 1 to 12, wherein the side surface has a notch for providing a step, and the frame has an extension for conforming to the shape of the notch. .
14. The glass composite according to claim 13, wherein the notch has an intermediate portion in contact with the extension.
15. It is an electronic device that can display information,
    The electronic device has a display unit for displaying information;
    The display unit is provided in the area of the glass member.
    An electronic device using the glass composite according to any one of claims 1 to 14, wherein the glass composite is used.
16. And a pair of electrode substrates at least a part of which is translucent, and at least a part of which is translucent,
    The base material is the glass composite according to any one of claims 1 to 14, and the pair of electrode substrates has a pair of resistance films made of a transparent conductive film, and the pair of resistance films has a void. An input device characterized by facing each other.
17. At least a part of which is a translucent substrate, and at least a part of which is a translucent electrode substrate;
    The base material is the glass composite according to any one of claims 1 to 14, and the base material is formed with one resistance film made of a transparent conductive film, and the electrode substrate is a transparent conductive film An input device characterized in that the other resistive film is formed, and the one resistive film and the other resistive film are opposed to each other through a gap.
18. At least a part of a translucent substrate, and at least a part of a translucent sensor substrate;
    The substrate is the glass complex according to any one of claims 1 to 14, and the sensor substrate is provided with an electrode for detecting capacitance, and the substrate and the sensor substrate are An input device characterized in that they are bonded together.
19. It has a glass composite according to claim 9,
    A sensor substrate is provided between the glass member and the lower frame.

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