JP2015209349A - Film-integrated glass, film material, and method for manufacturing film material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a film-integrated glass capable of easily reducing occurrence of separation of a shielding layer, deterioration of appearance due to lines, and leak light from a chamfered portion even when a glass material has the chamfered portion.SOLUTION: A film-integrated glass 1 includes an integrated glass material 2 and a film material 3. The glass material 2 has a chamfered portion 25. The film material 3 has a projected portion 33 that is formed so as to project toward the glass material 2 and partially buries the chambered portion 25 when being adhered to the glass material 2, and a shielding layer 34 disposed at a position overlapped with the projected portion 33 in a plan view.

Description

  The present invention relates to a film-integrated glass in which a glass material and a film material are integrated, a film material used therefor, and a method for producing the film material.

  In electronic devices such as smartphones and tablets, touch panels are widely used as input devices that are placed over a display panel. In such a touch panel, a glass material may be used as a substrate for forming a transparent electrode for position detection, a protection panel thereof, or the like in order to reduce the thickness. In general, a transparent electrode for position detection is arranged in a central area (input area) of the touch panel, and a lead wiring extending from each transparent electrode is arranged in a peripheral area outside the position detection transparent electrode. In such a case, a light shielding layer for concealing the routing wiring is often provided in order to prevent the routing wiring from being visible from the input surface side and suppressing the appearance from deteriorating.

  For example, as disclosed in Japanese Patent Application Laid-Open No. 2011-192124 (Patent Document 1), the light shielding layer can be constituted by a light shielding printing layer formed directly on a glass material, for example. However, the glass material is often chamfered for the purpose of improving its strength or preventing crushing, and when the glass material has a chamfered portion, it is difficult to provide a light shielding layer on the chamfered portion. . For this reason, conventionally, as shown in FIG. 3B and the like of Patent Document 1, the light shielding layer is arranged so that the end thereof coincides with the boundary position with the inclined surface constituting the chamfered portion in the glass material. Was.

  However, if the light-shielding layer is too large, the end part floats at the chamfered part and is easily peeled off from the glass material. Conversely, if the light-shielding layer is too small, streaks appear inside the chamfered part. And it looks bad. For this reason, the size of the light shielding layer is severely restricted in relation to the size of the glass material having the chamfered portion. As a result, it is easy to cause peeling from the glass material or deterioration in appearance due to the positional deviation, or high positional accuracy is required for the arrangement of the light shielding layer on the glass material, and the manufacturing cost increases. was there. Further, when used together with a display panel and a touch panel, apart from a highly precise light shielding layer, there is a problem that light leakage from the chamfered portion may occur, so that another countermeasure is required.

JP 2011-192124 A

  Therefore, even when the glass material has a chamfered portion, the realization of a film-integrated glass that can easily suppress the occurrence of peeling of the light shielding layer, deterioration of appearance due to streaks, light leakage from the chamfered portion, and the like. desired. Moreover, realization of the film material suitable for realization of such a film integral glass and its manufacturing method is desired.

Film integrated glass according to the present invention,
A film-integrated glass comprising a plate-like glass material and a film material integrated on one main surface of the glass material,
The glass material has a chamfered portion formed by chamfering a corner portion between the side surface and the film-side main surface,
The film material is formed so as to project toward the glass material side and is bonded to the glass material, and a position overlapping the projecting portion in plan view, and a projecting portion that at least partially fills the chamfered portion And a light-shielding layer.

  According to this configuration, when the film material integrated with the glass material having the chamfered portion has the protruding portion formed to protrude toward the glass material side, and the glass material and the film material are integrated. In this case, the protruding portion at least partially fills the chamfered portion of the glass material. And since a light shielding layer is provided in the position which overlaps with a protrusion part in planar view, a light shielding layer is provided through the protrusion part in the position of the chamfering part of glass material by integrating glass material and a film material. be able to. Since the end portion of the light shielding layer does not float at the position of the chamfered portion, peeling of the light shielding layer can be effectively suppressed. In addition, since the light shielding layer is provided so as to overlap the chamfered portion in plan view, it is possible to effectively suppress deterioration in appearance due to streaks and light leakage from the chamfered portion. And the various effects mentioned above can be acquired with the comparatively simple structure of integrating the glass material which has a chamfering part, and the film material which has a specific structure.

  Hereinafter, the suitable aspect of the film integrated glass which concerns on this invention is demonstrated. However, the scope of the present invention is not limited by the preferred embodiments described below.

  As one aspect of the film material, the projecting portion is formed in a complementary shape to the chamfered portion, and the light shielding layer has an end portion flush with the side surface of the glass material. It is suitable if it is arranged so as to be exposed on the side surface.

  According to this configuration, since the light shielding layer is provided so as to entirely overlap the chamfered portion in plan view, the various effects described above can be maximized.

  As one aspect, the film material has a film main body portion made of a curable resin, and the light shielding layer is included in the film material in a state where both surfaces thereof are covered by the film main body portion. It is preferable.

  According to this configuration, since both surfaces of the light shielding layer are covered with the film body portion and the light shielding layer is included in the film material, generation of a step due to the provision of the light shielding layer is effectively suppressed. In this case, since the film main body is made of a curable resin, the structure in which the light shielding layer is included in the film material can be realized simply and appropriately by curing the resin in a plurality of stages, for example.

  As one aspect, it is preferable that a portion of the film main body portion that is disposed closer to the glass material than the light shielding layer also serves as an adhesive layer for integration with the glass material.

  According to this configuration, the glass material and the film material can be integrated without separately providing an adhesive layer by utilizing the property of the curable resin that constitutes the film main body.

  As one aspect, the chamfered portion filled with the protruding portion includes a chamfered corner portion between an inner side surface of a through hole provided in the glass material and the main surface on the film side. It is preferable.

  According to this configuration, it is possible to easily and effectively suppress the occurrence of peeling of the light shielding layer, deterioration of appearance due to streaks, light leakage from the chamfered portion, and the like even around the through hole provided in the glass material. it can.

  As one aspect, it is preferable that the surface of the film material opposite to the glass material is formed as a flat surface.

  According to this structure, another member can be easily integrated with the surface on the opposite side to the glass material in a film material. In this case, a large installation area of the other member can be secured, and a large area other than the light shielding layer can be secured. Therefore, for example, when used in combination with a display panel and a touch panel, an electronic apparatus having a large screen and a narrow frame can be easily realized.

The film material according to the present invention is
A film material integrated with a plate-like glass material having a chamfered portion,
A film body,
A protrusion formed from the film body, and having a shape corresponding at least partially to the chamfer,
A light-shielding layer provided at a position overlapping the projecting portion in plan view in the film body portion;
Is provided.

  According to this configuration, when the film material integrated with the glass material having the chamfered portion has the protruding portion formed to protrude from the film main body portion, and the glass material and the film material are integrated. The protruding portion at least partially fills the chamfered portion of the glass material. And since a light shielding layer is provided in the position which overlaps with a protrusion part in planar view, a light shielding layer is provided through the protrusion part in the position of the chamfering part of glass material by integrating glass material and a film material. be able to. In the film-integrated glass, the end portion of the light shielding layer does not float at the position of the chamfered portion, so that the peeling of the light shielding layer can be effectively suppressed. In addition, since the light shielding layer is provided so as to overlap the chamfered portion in plan view, it is possible to effectively suppress deterioration in appearance due to streaks and light leakage from the chamfered portion. According to this structure, the film material suitable for realization of the film integral glass which can acquire such various effects can be provided.

The method for producing a film material according to the present invention includes:
A method for producing a film material integrated with a plate-like glass material having a chamfered portion,
A first curing step of laminating an uncured curable resin on one surface of the light shielding layer and curing the curable resin;
The cured curable resin that covers the light-shielding layer and one surface thereof using a mold having a concave portion having an inclined side surface and a bottom surface along an inclined surface that defines and forms the chamfered portion of the glass material. And a molding step for deforming the laminated body along the recess so that the other surface of the light shielding layer is recessed,
A second curing step of laminating an uncured curable resin on the other surface of the light shielding layer and curing the curable resin;
A cutting step of cutting the laminate of the light-shielding layer after the second curing step and the cured curable resin covering both surfaces thereof at a bending position corresponding to a boundary between the inclined side surface and the bottom surface;
including.

  According to this configuration, the light-shielding layer in a plan view in the laminate of the light-shielding layer and the cured curable resin covering both surfaces of the light-shielding layer by passing through the first curing step, the molding step, and the second curing step in the order described. A convex portion corresponding to the concave shape of the mold can be formed at a position overlapping with. Since the concave portion of the mold is formed along the inclined surface that defines the chamfered portion in the glass material, the convex portion has a shape corresponding to the chamfered portion of the glass material. Thereafter, in the cutting step, the laminated body is cut at a predetermined position, thereby obtaining a film material provided with a protruding portion having a shape corresponding at least partially to the chamfered portion of the glass material at a position overlapping the light shielding layer in plan view. be able to. According to this configuration, a film material suitable for realizing a film-integrated glass that can easily and effectively suppress the occurrence of peeling of the light shielding layer, deterioration of appearance due to streaks, light leakage from the chamfered portion, and the like is produced. can do.

Perspective view of electronic equipment II-II sectional view in FIG. Exploded perspective view of protection panel with touch input function Enlarged sectional view of the protection panel with touch input function Schematic diagram showing the first curing process Schematic diagram showing the preparation process for the molding process Schematic diagram showing the mold for molding used in the molding process Schematic diagram showing the molding process Schematic diagram showing the second curing process Schematic diagram showing the preparation process for the cutting process Schematic diagram showing the cutting process Expanded sectional view showing another aspect of the protection panel with touch input function Schematic diagram showing another embodiment of the film material manufacturing method Schematic diagram showing another embodiment of the film material manufacturing method

  A film integrated glass according to the present invention, a film material used therefor, and a manufacturing method thereof will be described with reference to the drawings. The film integrated glass 1 according to the present embodiment includes an integrated glass material 2 and a film material 3. The film-integrated glass 1 is provided in the electronic device 100 together with the touch panel 5 and functions as a protection panel for the touch panel 5 as a touch input device. A protective panel 4 with a touch input function is configured by including the film integrated glass 1 and the touch panel 5. In the present embodiment, a film-integrated glass 1 (protective panel 4 with a touch input function) mounted on a multi-function mobile phone (smart phone) as a kind of electronic device 100 will be described as an example.

  In the following description, the side on which the input surface of the protection panel 4 with a touch input function (exposed-side main surface 22 of the glass material 2 described later) is located is referred to as “front side”. This “front side” is also the side facing the user who operates the electronic device 100. On the contrary, the back side when viewed from the user operating the electronic device 100 is referred to as a “back side”. In the drawings referred to in the following description, for the sake of convenience, the scale, the vertical / horizontal dimensional ratio, and the like may be different from those of the actual product from the viewpoint of easy illustration and easy understanding.

  As shown in FIGS. 1 and 2, the electronic device 100 is arranged in a substantially rectangular parallelepiped casing 7, a display panel 6 built in the casing 7, and a display panel 6 that overlaps the front side. And a protective panel 4 with a touch input function (touch panel 5). The housing 7 is made of synthetic resin. The housing | casing 7 is provided with the accommodation recessed part 7a opened to a rectangular shape toward the front side. The housing recess 7a is formed to have a step, and the step functions as a support portion 7b that supports the protection panel 4 with a touch input function from the back side. The support portion 7b is formed in a rectangular frame shape (frame shape) corresponding to the shape of the storage recess 7a. The display panel 6 is stored in a region (first storage recess) on the back side of the support portion 7b (stepped portion), and is supported by the support portion 7b in a region on the front side (second storage recess). A protection panel 4 with a touch input function is accommodated. The display panel 6 is constituted by, for example, a liquid crystal panel or an organic EL panel.

  The shape and size of the storage recess 7a (first storage recess and second storage recess) can be set as appropriate according to the shape and size of the display panel 6 and the protection panel 4 with a touch input function. In the present embodiment, as an example, the display panel 6 and the protection panel 4 with a touch input function both have a substantially rectangular parallelepiped shape, and the dimensions in plan view (as viewed from the front side) are the display panel 6. The protection panel 4 with a touch input function is larger than that. In the storage recess 7a, the side surface of the first storage recess and the side surface of the display panel 6 are opposed to each other with a predetermined gap, and the side surface of the second storage recess and the side surface of the protection panel 4 with a touch input function are almost free from gaps. The surface of the display panel 6 and the surface of the support portion 7b are substantially the same height, and the surface of the housing 7 and the surface of the protection panel with touch input function 4 are substantially the same height. ing.

  As shown in FIG. 3, the protection panel 4 with a touch input function includes a film integrated glass 1 and a touch panel 5 integrated with the film integrated glass 1. The film integrated glass 1 includes a plate-like glass material 2 and a film material 3 integrated with the glass material 2. The glass material 2, the film material 3, and the touch panel 5 are laminated | stacked in order of description toward the back side from the front side. The touch panel 5 is disposed on the support portion 7b of the housing 7, the film material 3 is disposed on the touch panel 5, and the glass material 2 is disposed on the film material 3 (see also FIG. 2). These are formed in a rectangular shape having a long side and a short side in a plan view (as viewed from the stacking direction) and are overlapped in the same direction. Note that the “rectangular shape” represents a rectangular shape as a whole, and is a concept that allows, for example, the four corners to be rounded.

  As the touch panel 5, for example, a known capacitive touch panel can be used. As shown as an example in FIG. 3, the touch panel 5 includes a substrate 51, and a plurality of first electrodes 52 and a plurality of second electrodes 53 disposed to face each other on the substrate 51. The board | substrate 51 is comprised using the material (For example, a polyethylene terephthalate film etc.) excellent in transparency, a softness | flexibility, insulation, etc. The plurality of first electrodes 52 are arranged in parallel to each other so as to be arranged at a predetermined interval in the input region I (the central region of the touch panel 5). The plurality of second electrodes 53 are arranged in parallel to each other so as to be arranged at a predetermined interval in the input region I. The plurality of first electrodes 52 and the plurality of second electrodes 53 are arranged so as to intersect with each other (orthogonal in this example) in plan view. The 1st electrode 52 and the 2nd electrode 53 are comprised using the material (for example, ITO (Indium Tin Oxide) thin film etc.) excellent in electroconductivity and transparency.

  The touch panel 5 further includes a lead wiring 54 extending from each of the first electrode 52 and the second electrode 53. The routing wiring 54 electrically connects the first electrode 52 and the second electrode 53 as position detection electrodes and a control unit (for example, an arithmetic processing device provided in the electronic device 100). Each of the routing wirings 54 is arranged in a non-input area N (a peripheral area of the touch panel 5 and a peripheral area outside the input area I). The routing wiring 54 is configured using a conductive paste (for example, a silver paste).

  On the substrate 51 constituting the touch panel 5, a button hole 58 having a shape corresponding to the outer shape of the button 8 (see FIG. 1) provided in the electronic device 100 and a shape corresponding to the outer shape of the speaker 9 (see FIG. 1). The speaker hole 59 is formed to penetrate in the thickness direction.

  The glass material 2 is a plate-like member disposed on the foremost side in the protection panel 4 with a touch input function, and is provided to protect the touch panel 5. As the glass material 2, ordinary plate glass, tempered plate glass, polished plate glass, and the like, which are excellent in transparency (having high transmittance) can be used. In the present embodiment, a pair of surfaces facing each other in the thickness direction of the glass material 2 are referred to as “main surfaces”. As shown in FIG. 4, the main surface on one side of the glass material 2 (the surface on the back side in this embodiment) is a film-side main surface 21 to which the film material 3 is bonded. The main surface of the glass material 2 opposite to the film-side main surface 21 (the front-side surface in this embodiment) is an exposed-side main surface 22 exposed to the outside. The exposed main surface 22 of the glass material 2 is an input surface that is touched by the user's finger or the like when the user inputs a predetermined operation to the electronic device 100.

  As shown in FIG. 4, in the present embodiment, the glass material 2 is chamfered for the purpose of improving the strength of the glass material 2 and preventing crushing. The glass material 2 has a corner between the side surface 23 (a surface orthogonal to both the film-side main surface 21 and the exposed-side main surface 22) and the film-side main surface 21 and the exposed-side main surface 22 (FIG. 4). The chamfered portion 25 is formed by chamfering a part of the cut-off portion (indicated by a one-dot chain line). In this example, the chamfered portion 25 is formed by C chamfering at the corner of the glass material 2. By performing such C chamfering, the glass material 2 is applied to both the first inclined surface 26 that is inclined with respect to both the film-side main surface 21 and the side surface 23, and both the exposed-side main surface 22 and the side surface 23. It has the 2nd inclined surface 27 which inclines with respect. The chamfered portion 25 is formed along the edge of the rectangular glass material 2. In the present embodiment, the first inclined surface 26 corresponds to an “inclined surface” in the present invention.

  As shown in FIG. 3, the glass material 2 has a button hole 28 having a shape corresponding to the outer shape of the button 8 provided in the electronic device 100 and a speaker hole 29 having a shape corresponding to the outer shape of the speaker 9 in the thickness direction. Is formed through. A chamfered portion 25 may also be formed around the button hole 28 and the speaker hole 29 in the glass material 2. In other words, the chamfered portion 25 may include a chamfered corner portion between the inner surface of the button hole 28 or the speaker hole 29 provided in the glass material 2 and the film-side main surface 21. good. In the present embodiment, at least one of the button hole 28 and the speaker hole 29 corresponds to a “through hole” in the present invention.

  As described above, the routing wiring 54 is disposed in the non-input area N of the touch panel 5, and the glass material 2 having excellent transparency is disposed on the front side thereof. For this reason, in the protection panel 4 with a touch input function according to the present embodiment, between the touch panel 5 and the glass material 2, the routing wiring 54 is shielded when viewed from the front side, and the routing wiring 54 is not visible. A light shielding layer 34 is provided. The light shielding layer 34 further has a function of suppressing light leakage from the light emitting device (for example, a backlight in the liquid crystal panel or the organic EL panel itself) to the front side of the display panel 6.

  In the case where the light shielding layer 34 is provided by pressure bonding to the plate-like glass material 2 having the chamfered portion 25, it is usually very difficult to provide the light shielding layer 34 on the chamfered portion 25. For this reason, in such a case, the light shielding layer 34 is arranged so that the outer end portion of the light shielding layer 34 coincides with the boundary position with the first inclined surface 26 in the film-side main surface 21 of the glass material 2. Is common. Then, it is conceivable to separately provide a second light-shielding layer on the chamfered portion 25 where the light-shielding layer 34 cannot be provided using another technique such as tampo printing.

  However, if the light shielding layer 34 is too large, the end portion of the light shielding layer 34 is lifted by the chamfered portion 25 and is easily peeled off from the glass material 2. Conversely, if the light shielding layer 34 is too small, a streak is formed inside the chamfered portion 25. Becomes visible and deteriorates in appearance. For this reason, the size of the light shielding layer 34 is severely restricted in relation to the size of the glass material 2 having the chamfered portion 25. As a result, the positional deviation tends to cause peeling from the glass material 2 and deterioration in appearance, or high positional accuracy is required for the arrangement of the light shielding layer 34 on the glass material 2 and the manufacturing cost increases. There was a problem to do. Further, when tampo printing or the like is performed on the chamfered portion 25, the manufacturing cost is further increased due to the need for another process.

  Therefore, in the present embodiment, the light shielding layer 34 is provided on the glass material 2 by improving the shape of the film material 3 having the light shielding layer 34 and integrating the film material 3 with the glass material 2. As shown in FIG. 4, the film material 3 includes a film main body portion 31, a protruding portion 33 that protrudes from the film main body portion 31, and a light shielding layer 34.

  The film main body 31 constitutes the main part of the film material 3. The film main body 31 is formed in a rectangular shape in plan view. The film main body 31 is configured using a material excellent in transparency, flexibility, insulation, and the like. The film body 31 is made of a curable resin. The film body 31 can be made of, for example, a photocurable resin such as a radiation curable resin (for example, an ultraviolet curable resin or an electron beam curable resin) or a visible light curable resin. In this example, an acrylic resin as an example of an ultraviolet curable resin is used in consideration of curing time, cost, and the like.

  In the present embodiment, the film body 31 is integrated as a whole while having a two-layer structure. As shown in FIG. 4, the film main body 31 includes an inner layer 31 </ b> A on the glass material 2 side and an outer layer 31 </ b> B on the opposite side (touch panel 5 side) from the glass material 2. A light shielding layer 34 is provided at the boundary between the inner layer 31A and the outer layer 31B. In the present embodiment, the inner layer 31 </ b> A of the film main body 31 corresponds to “a portion disposed on the glass material side of the light shielding layer” in the present invention. In the present embodiment, the inner layer 31 </ b> A of the film body 31 also serves as an adhesive layer for integrating the film material 3 with the glass material 2. That is, the film material 3 is directly integrated with the glass material 2 by the inner layer 31 </ b> A of the film main body portion 31 without using another adhesive layer.

  The protruding portion 33 is formed to protrude from the film main body portion 31 toward the glass material 2 side. The protrusion 33 is formed along the edge of the rectangular film body 31 so as to correspond to the position of the chamfer 25 of the glass material 2 (see FIG. 3). The protruding portion 33 has a shape corresponding at least partially to the chamfered portion 25, and at least partially fills the chamfered portion 25 when the film material 3 is bonded to the glass material 2. In the present embodiment, the projecting portion 33 has a shape complementary to the chamfered portion 25, and the chamfered portion 25 is not excessively or deficient when the film material 3 is bonded to the glass material 2. fill in. As shown in FIG. 4, the projecting portion 33 is formed to have a substantially triangular cross section (in this example, a substantially right isosceles triangular shape). In addition, when the chamfer 25 is formed also around the button hole 28 and the speaker hole 29 in the glass material 2, it is preferable that the protrusion 33 is formed also in the position corresponding to these.

  In the present embodiment, the protruding portion 33 is formed integrally with the inner layer 31 </ b> A of the film main body portion 31. Similar to the film body 31, the protruding portion 33 can be made of a photocurable resin (in this example, an acrylic resin as an example of an ultraviolet curable resin) and is integrated with the glass material 2. The adhesive layer is also used. Thus, in this embodiment, since the film material 3 has the projection part 33 of the predetermined shape projected and formed toward the glass material 2 side, not only the film side main surface 21 of the glass material 2 but also the chamfered portion. 25, the film material 3 can be appropriately adhered.

  As shown in FIG. 4, the light shielding layer 34 is a film material in a state where one surface thereof is covered with the inner layer 31 </ b> A of the film body portion 31 and the other surface is covered with the outer layer 31 </ b> B of the film body portion 31. 3 is included. In addition, the light shielding layer 34 is provided at a position overlapping the protruding portion 33 in the film main body portion 31 in plan view. The light shielding layer 34 includes the position of the edge of the film main body 31 that overlaps the protruding portion 33 in plan view, and extends over a predetermined range on the inner side (input area I side of the touch panel 5). Is arranged. The light shielding layer 34 is formed in a rectangular frame shape (frame shape) along the peripheral edge of the rectangular film main body portion 31 and is arranged so as to overlap all the routing wirings 54 in a plan view (see FIG. 3). reference). Note that a portion of the film main body 31 where the light shielding layer 34 is not provided (an inner portion of the light shielding layer 34 having a rectangular frame shape) is a display window for presenting the display content of the display panel 6 to the user via the touch panel 5. Part 32 is formed. The display window 32 is also a part corresponding to the input area I.

  The light shielding layer 34 can be constituted by, for example, a colored film or a colored ink layer. As the colored film, for example, a colored resin film formed by mixing a pigment, a metal deposited film formed by metal deposition, or the like can be used. In this example, the light shielding layer 34 is made of a polyethylene terephthalate film (white PET film) mixed with a white pigment. By configuring the light shielding layer 34 with a white PET film, there is an advantage that the light shielding layer 34 can be thinned while ensuring the light shielding property, compared to the case where the light shielding layer 34 is formed by a printing method such as screen printing. .

  The light shielding layer 34 is disposed such that an end portion thereof is exposed to the side surface 35 of the film material 3 provided in the same plane as the side surface 23 of the glass material 2. In the present embodiment, the light shielding layer 34 includes a parallel extending portion 34A that extends parallel to the film-side main surface 21 of the glass material 2, and an inclined extending portion 34B that is inclined with respect to the parallel extending portion 34A. And have. The inclined extending portion 34 </ b> B extends in parallel to the first inclined surface 26 corresponding to the chamfered portion 25 between the film-side main surface 21 and the side surface 23 of the glass material 2. Then, the end of the inclined extending portion 34 </ b> B opposite to the parallel extending portion 34 </ b> A is disposed so as to be exposed on the side surface 35 of the film material 3.

  Thus, in this embodiment, since the film material 3 has the projection part 33 of the predetermined shape projected and formed toward the glass material 2 side, not only the film side main surface 21 of the glass material 2 but also the chamfered portion. 25, the film material 3 can be appropriately adhered. And since the light shielding layer 34 included in the film material 3 is provided in the position which overlaps with the protrusion part 33 by planar view, only the glass material 2 and the film material 3 are integrated, and the chamfering part of the glass material 2 is carried out. The light shielding layer 34 can be provided at the position 25. Since the end portion of the light shielding layer 34 does not float at the position of the chamfered portion 25, peeling of the light shielding layer 34 can be effectively suppressed. In addition, since the light shielding layer 34 is provided so as to overlap the chamfered portion 25 in plan view, it is possible to effectively suppress deterioration in appearance due to streaks and light leakage from the chamfered portion 25. Since the film material 3 itself has a rectangular shape as a whole (since it is not a hollow frame shape), the glass material 2 and the film material 3 can be bonded to each other relatively easily.

  As shown in FIG. 3, a button hole 38 having a shape corresponding to the outer shape of the button 8 provided in the electronic device 100 and a speaker hole having a shape corresponding to the outer shape of the speaker 9 are formed in the light shielding layer 34 of the film material 3. 39 is formed penetrating in the thickness direction.

  As shown in FIG. 4, the surface of the film material 3 opposite to the glass material 2 is a panel adhesion surface 36 to which the touch panel 5 is adhered. In the present embodiment, the touch panel 5 is bonded to the panel bonding surface 36 of the film material 3 via an adhesive layer (not shown) made of, for example, an optically clear adhesive (OCA). In the present embodiment, the panel adhesion surface 36 is formed on a flat surface so as to be able to adhere to the entire touch panel 5 formed in a flat plate shape. Thereby, the film integrated glass 1 and the touch panel 5 can be integrated easily. In addition, a large installation area of the touch panel 5 can be secured, and a large area of the region (input region I) other than the non-input region N corresponding to the light shielding layer 34 can be secured. Therefore, the electronic device 100 having a large screen and a narrow frame can be easily realized.

  Hereinafter, the manufacturing method of the film material 3 integrated with the plate-shaped glass material 2 which has the chamfer part 25 is demonstrated. The manufacturing method of the film material 3 which concerns on this embodiment includes a 1st hardening process, a shaping | molding process, a 2nd hardening process, and a cutting process. The first curing step, the molding step, the second curing step, and the cutting step are performed in the order described.

  The first curing step is a step of laminating an uncured curable resin R on one surface of the light shielding film 65 (which will later become the light shielding layer 34) and curing the curable resin. As shown in FIG. 5, in the first curing step, a laminate of the first carrier film 61 and the light shielding film 65 is prepared at the preparation stage. The light shielding film 65 is a colored film such as a white PET film. The light-shielding film 65 has a portion corresponding to at least the light-shielding layer 34 and is formed so as to include a portion further outside. From the opposite side of the first carrier film 61 to the light shielding film 65, an uncured curable resin R is applied and laminated so as to have a predetermined thickness. The curable resin R is an ultraviolet curable resin such as an acrylic resin. In this state, the curable resin R is cured by irradiating with ultraviolet rays. In the present embodiment, the curable resin R is semi-cured by adjusting the ultraviolet irradiation time and / or strength.

  As a result, as shown in FIG. 6, the first carrier film 61, the light-shielding film 65, and the first resin layer 67 made of the semi-cured curable resin R that covers the surface on one side thereof (first One laminate L1) is obtained. In the present embodiment, the first laminated body L1 corresponds to “a laminated body of a light-shielding layer and a cured curable resin covering one surface thereof” in the present invention. A second carrier film 62 is further laminated on the first laminated body L1 from the first resin layer 67 side. The first resin layer 67 later becomes the inner layer 31A of the film main body 31. By keeping the curable resin R constituting the first resin layer 67 in a semi-cured state, the inner layer 31A of the film main body 31 can be used later as an adhesive layer.

  The molding step is a step of deforming the first laminated body L1 using the molding die 70. The molding die 70 includes a first mold member 71 having a concave portion 72 and a second mold member 76 having a convex portion 77. The recess 72 provided in the first mold member 71 is defined by an inclined side surface 73 and a bottom surface 74. The inclined side surface 73 is formed in an inclined shape along the first inclined surface 26 that forms the chamfered portion 25 of the glass material 2. The bottom surface 74 is formed substantially horizontally along the parting surface between the first mold member 71 and the second mold member 76. The convex portion 77 provided on the second mold member 76 is formed to have a shape complementary to the concave portion 72. In the present embodiment, the molding die 70 corresponds to the “mold” in the present invention.

  As shown in FIG. 7, the first laminate L1 is disposed between the first mold member 71 and the second mold member 76 in a state where the mold is opened. At this time, the 1st laminated body L1 is arrange | positioned in the state which the 1st carrier film 61 peeled and the light-shielding film 65 is located in the 2nd type | mold member 76 side. In this state, the first mold member 71 and the second mold member 76 are clamped as shown in FIG. 8, so that the first resin layer 67 of the light-shielding film 65 to be the light-shielding layer 34 later is opposite to the first resin layer 67. The first laminate L1 is deformed along the recess 72 so that the surface is recessed. Thereafter, the first mold member 71 and the second mold member 76 are opened, and the deformed first laminate L1 is taken out.

  The second curing step is a step of laminating an uncured curable resin R on the surface on the recessed side of the light shielding film 65 that will later become the light shielding layer 34 and curing the curable resin. As shown in FIG. 9, in the second curing step, uncured curable resin R is applied and laminated so as to have a predetermined thickness from the side opposite to first resin layer 67 with respect to light shielding film 65. The Thereby, a flat surface is formed on the entire surface including the portion corresponding to the recessed portion of the light shielding film 65. The curable resin R is an ultraviolet curable resin such as an acrylic resin. In this embodiment, the same kind of resin is used in the first curing step and the second curing step. However, the resin is not limited to such a configuration, and different resins can be used in the first curing step and the second curing step. In this state, the curable resin R is cured by irradiating with ultraviolet rays.

  Thereby, as shown in FIG. 10, the laminated body (2nd laminated body L2) of the 2nd carrier film 62, the 1st resin layer 67, the light-shielding film 65, and the 2nd resin layer 68 is obtained. Both sides of the light-shielding film 65 are covered with a first resin layer 67 and a second resin layer 68 each made of a curable resin R which is cured (concept including a semi-cured state). In the present embodiment, the second laminate L2 corresponds to the “laminate of the light-shielding layer and the cured curable resin that covers both surfaces” in the present invention. In the present embodiment, since the curable resin R is cured in two stages, the light shielding film 65 is provided while the light shielding film 65 is provided between the first resin layer 67 and the second resin layer 68. It is possible to effectively suppress the occurrence of a level difference due to. Thereafter, the third carrier film 63 is further laminated on the second laminated body L2 from the second resin layer 68 side.

  The cutting step is a step of cutting the second stacked body L2 at a predetermined bending position B (see FIG. 10). Here, the bending position B is a position corresponding to the boundary between the inclined side surface 73 and the bottom surface 74 of the recess 72 of the molding die 70 (first mold member 71) (see also FIGS. 7 and 8). As shown in FIG. 11, in a cutting process, the 2nd laminated body L2 is cut | disconnected by the thickness method, for example using cutters 81, such as a rotary cutter and a heat cutter. Thereby, the film main body portion 31 composed of the inner layer 31 </ b> A composed of a part of the first resin layer 67 and the outer layer 31 </ b> B composed of the second resin layer 68, and the protruding portion 33 composed of a part of the first resin layer 67, Thus, the film material 3 having the light shielding layer 34 made of the light shielding film 65 is obtained. The film material 3 is obtained in a state where both sides thereof are covered with the second carrier film 62 and the third carrier film 63.

  The film material 3 obtained in this way is projected from the film main body 31, the projection main body 31, and a projection 33 having a shape corresponding to the chamfered portion 25 of the glass material 2. The light shielding layer 34 provided in the position which overlaps with the part 33 is provided. According to the manufacturing method which concerns on this embodiment, peeling of the light shielding layer 34, the fall of the appearance by a stripe, and generation | occurrence | production of the light leakage from the chamfer 25, etc. can be suppressed simply and effectively. The film material 3 suitable for realization can be produced.

[Other Embodiments]
Finally, other embodiments of the film-integrated glass, the film material, and the method for producing the film material according to the present invention will be described. Note that the configurations disclosed in the following embodiments can be applied in combination with the configurations disclosed in other embodiments as long as no contradiction arises.

(1) In the above embodiment, an example in which the light shielding layer 34 is formed of a white PET film has been described. However, the embodiment of the present invention is not limited to this. For example, the light shielding layer 34 may be made of a black PET film (polyethylene terephthalate film mixed with a black pigment). Moreover, you may be comprised with the polyethylene terephthalate film in which the pigment of another color was mixed. Moreover, you may be comprised with the polyethylene terephthalate film in which the pigment of 2 or more colors was mixed. Alternatively, the light shielding layer 34 may be formed of a colored resin film, a metal vapor deposition film, an ink layer, or the like made of another material.

(2) In the above embodiment, the configuration in which the light shielding layer 34 included in the film material 3 is disposed so that the end portion thereof is exposed on the side surface 35 of the film material 3 has been described as an example. However, the embodiment of the present invention is not limited to this. For example, the light shielding layer 34 may be disposed so that the end portion thereof is completely included in the film material 3 without being exposed to the side surface 35 of the film material 3. Further, for example, the light shielding layer 34 may be disposed so as to be exposed to the touch panel 5 side without being included in the film material 3. In this case, an adhesive layer is essential between the film material 3 (particularly, the portion of the light shielding layer 34) and the touch panel 5.

(3) In the above-described embodiment, the configuration in which the light shielding layer 34 includes the parallel extending portion 34A and the inclined extending portion 34B has been described as an example. However, the embodiment of the present invention is not limited to this. For example, as shown in FIG. 12, the light shielding layer 34 may include only the parallel extending portion 34A without having the inclined extending portion 34B.

(4) In the above-described embodiment, an example in which the film main body portion 31 and the protruding portion 33 are made of an acrylic resin (an example of an ultraviolet curable resin) has been described. However, the embodiment of the present invention is not limited to this. For example, the film body 31 and the protrusion 33 may be made of other ultraviolet curable resin such as epoxy resin. Moreover, the film main body part 31 and the protrusion part 33 may be comprised with other curable resins, such as an electron beam curable resin and a thermosetting resin.

(5) In the above embodiment, the inner layer 31 </ b> A of the film body 31 also serves as the adhesive layer, and the configuration in which the adhesive layer is provided between the outer layer 31 </ b> B of the film body 31 and the touch panel 5 is described as an example. did. However, the embodiment of the present invention is not limited to this. For example, the outer layer 31B of the film body 31 may also serve as an adhesive layer, and the film material 3 may be directly integrated with the touch panel 5 by the outer layer 31B of the film body 31 without any other adhesive layer. . Further, for example, the inner layer 31A of the film main body 31 may be integrated through an adhesive layer in which the film material 3 and the glass material 2 are separately provided without using the adhesive layer also.

(6) In the above embodiment, the configuration in which the chamfered portion 25 of the glass material 2 is formed by C chamfering has been described as an example. However, the embodiment of the present invention is not limited to this. For example, the chamfered portion 25 of the glass material 2 may be formed by R chamfering. In this case, the protrusion 33 provided on the film material 3 is formed to have a shape (preferably complementary) corresponding at least partially to the chamfer 25 formed by R chamfering. The shape of the recess 72 of the molding die 70 (first mold member 71) is also set according to the shape of the chamfered portion 25.

(7) In the above embodiment, an example in which a capacitive touch panel is used as the touch panel 5 has been described. However, the embodiment of the present invention is not limited to this. As the touch panel 5, for example, a touch panel of another system such as a resistive film system, a surface acoustic wave system, and an electromagnetic induction system may be used.

(8) In the above embodiment, the example in which the film material 3 is manufactured by using the molding die 70 in the order of the first curing step, the molding step, the second curing step, and the cutting step has been described. However, the embodiment of the present invention is not limited to this. The film material 3 can be manufactured by any method other than the manufacturing method described above. For example, you may manufacture the film material 3 using the carrier film of the form which bonded two sheets, without using the metal mold | die 70 for shaping | molding. In this case, for example, as shown in FIG. 13, a fourth carrier film 64 having a two-layer structure is used instead of the first carrier film 61, and only one of the two layers (upper layer 64A) is chamfered on the glass material 2. Cut off at an inclination angle corresponding to the inclination angle of the first inclined surface 26 forming the portion 25. Thereafter, the first resin layer 67 (cured curable resin R), the light shielding film 65, and the second resin layer 68 (cured curable resin R) are laminated in this order. Finally, as shown in FIG. 14, using a cutter 81, these laminates are cut into thickness methods at positions corresponding to the excision positions of the upper layer 64A. The shape, structure, etc. of the produced film material 3 may vary depending on the manufacturing method. For example, in the example manufactured using the carrier film having the above two-layer structure, the film material 3 (see FIG. 12) in which the light shielding layer 34 is configured only by the parallel extending portions 34A is produced.

(9) In the above embodiment, the example in which the film material and the film-integrated glass according to the present invention are applied to a multi-function mobile phone as a kind of the electronic device 100 has been described. However, the embodiment of the present invention is not limited to this. For example, other electronic devices 100 such as a conventional mobile phone, a PDA (Personal Digital Assistant), a tablet, a portable music player, an in-vehicle navigation device, a PND (Portable Navigation Device), a digital camera, a digital video camera, and a portable game machine. Also, the present invention can be applied. In particular, the present invention can be preferably applied to the small electronic device 100 in which the ratio of the chamfered portion 25 to the entire device is relatively large. In addition to the electronic device 100, the present invention can also be applied to, for example, building materials and decorations.

(10) Regarding other configurations, it should be understood that the embodiments disclosed herein are illustrative in all respects and that the scope of the present invention is not limited thereby. Those skilled in the art will readily understand that modifications can be made as appropriate without departing from the spirit of the present invention. Accordingly, other embodiments modified without departing from the spirit of the present invention are naturally included in the scope of the present invention.

  The present invention can be used for film-integrated glass mounted on an electronic device such as a multi-function mobile phone.

DESCRIPTION OF SYMBOLS 1 Film integrated glass 2 Glass material 3 Film material 21 Film side main surface 23 Side surface 25 Chamfer 26 First inclined surface (inclined surface)
28 Button hole (through hole)
29 Speaker hole (through hole)
31 Film body part 31A Inner layer (part arrange | positioned on the glass material side rather than the light shielding layer)
33 Projection 34 Light-shielding layer 35 Side 36 Panel adhesion surface (surface opposite to glass material of film)
65 Light-shielding film 67 First resin layer 68 Second resin layer 70 Mold for molding (mold)
72 Concave part 73 Inclined side surface 74 Bottom surface R Curable resin L1 1st laminated body (laminated body with the light-shielding layer and the hardened | cured curable resin which covers the surface of the one side)
L2 second laminate (laminate with a light-shielding layer and a cured curable resin covering both surfaces thereof)
B Bending position

Claims (8)

A film-integrated glass comprising a plate-like glass material and a film material integrated on one main surface of the glass material,
The glass material has a chamfered portion formed by chamfering a corner portion between the side surface and the film-side main surface,
The film material is formed so as to project toward the glass material side and is bonded to the glass material, and a position overlapping the projecting portion in plan view, and a projecting portion that at least partially fills the chamfered portion And a light-shielding layer provided on the film. The protrusion is formed in a complementary shape to the chamfer,
The film-integrated glass according to claim 1, wherein the light shielding layer is disposed such that an end portion thereof is exposed on a side surface of the film material provided in the same plane as the side surface of the glass material. The film material has a film body portion made of a curable resin,
3. The film-integrated glass according to claim 1, wherein the light shielding layer is included in the film material in a state where both surfaces thereof are covered with the film body portion.   4. The film-integrated glass according to claim 3, wherein a portion of the film main body that is disposed closer to the glass material than the light shielding layer also serves as an adhesive layer for integration with the glass material.   The chamfered portion filled with the projecting portion includes one formed by chamfering a corner portion between an inner surface of a through hole provided in the glass material and the main surface on the film side. Film integrated glass as described in any one of these.   The film-integrated glass according to any one of claims 1 to 5, wherein a surface of the film material opposite to the glass material is formed as a flat surface. A film material integrated with a plate-like glass material having a chamfered portion,
A film body,
A protrusion formed from the film body, and having a shape corresponding at least partially to the chamfer,
A light-shielding layer provided at a position overlapping the projecting portion in plan view in the film body portion;
A film material comprising: A method for producing a film material integrated with a plate-like glass material having a chamfered portion,
A first curing step of laminating an uncured curable resin on one surface of the light shielding layer and curing the curable resin;
The cured curable resin that covers the light-shielding layer and one surface thereof using a mold having a concave portion having an inclined side surface and a bottom surface along an inclined surface that defines and forms the chamfered portion of the glass material. And a molding step for deforming the laminated body along the recess so that the other surface of the light shielding layer is recessed,
A second curing step of laminating an uncured curable resin on the other surface of the light shielding layer and curing the curable resin;
A cutting step of cutting the laminate of the light-shielding layer after the second curing step and the cured curable resin covering both surfaces thereof at a bending position corresponding to a boundary between the inclined side surface and the bottom surface;
The manufacturing method of the film material containing this.

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