WO2015119309A1

WO2015119309A1 - Laminated film for touch screen enabling non-capacitive touch input, mobile device and protective case using same

Info

Publication number: WO2015119309A1
Application number: PCT/KR2014/001014
Authority: WO
Inventors: 오영호
Original assignee: 테디아(주)
Priority date: 2014-02-06
Filing date: 2014-02-06
Publication date: 2015-08-13

Abstract

The present invention relates to a laminated film for a touch screen enabling non-capacitive touch input, a mobile device and a protective case using the same. More specifically, the present invention relates to a laminated film which enables a user to input data on or to operate a touch screen using a non-conductive tip such as a finger in a glove or a common ball-point pen as well as using a capacitive touch input tool such as a part of the human body (in particular, fingers) or a stylus pen having an electrode tip for a contact-type capacitive overlay touch screen which is the mainstream for mobile devices such as mobile phones; and a protective case using the same. According to the present invention, the laminated film for a touch screen that enables non-capacitive touch inputs so as to enable a user to input or operate a touch screen that allows contact-type capacitive touch inputs using a non-conductive touch method, comprises: a base film exposed on the top surface; a first conductive thin film layer coupled to the bottom surface of the base film and arranged towards a contact-type capacitive touch screen; and a support, wherein each of the top and the bottom surface of the support is individually attached to the first conductive thin film layer and to the touch screen to separate the first conductive thin film layer and the touch screen and to block sensing of the first conductive thin film layer.

Description

Multi-layer film for touch screen with non-capacitive touch input, mobile device and protective case using it

The present invention relates to a laminated film for a touch screen capable of non-capacitive touch input, a mobile device and a protective case using the same.

More specifically, in addition to capacitive touch inputs such as a body (particularly a finger) or a stylus pen having an electrode tip, the capacitive overlay touch screen, which is the mainstream of mobile devices such as mobile phones,

The present invention relates to a laminated film that enables input or manipulation of a touch screen even using a gloved hand or a non-conductive tip such as a conventional ballpoint pen, and a mobile device and a protective case using the same.

A technology related to a protective film for a mobile device such as a conventional mobile phone, in particular a mobile device having a touch capacitive touch screen

Patent Registration No. 10-1093721 (Registration date December 7, 2011) [Display double-sided hard coating film for protection] and Patent Registration No. 10-1191145 (Registration date October 09, 2012) [For capacitive touch screen Touch film, a touch screen and a portable terminal using the same].

The former patent is that the first hard coating layer for implementing anti-blocking properties and antifouling properties is formed on one surface of the plastic base film, the second hard coating layer for forming scratch resistance is formed on the back surface of the plastic base film, anti-blocking and antifouling properties It is excellent and high surface hardness, and relates to a double-sided hard coating film for display protection that can implement scratch resistance on the back of the hard coating film.

The latter patent discloses a touch film for capacitive touch screens, a touch screen and a portable terminal using the same, for capacitive touch screens requiring a large contact area for location recognition. It is about.

As described above, the conventional patents are mostly focused on the function of protecting the touch screen of a mobile device such as a mobile phone (electronic), or the development of the technology (the latter) to increase the touch sensitivity.

However, the critical technology required in the actual market is that a user who wears winter gloves or a user who wears second-class gloves such as a professional can use a mobile device such as information input by operating a touch screen even while wearing gloves. Development was an urgent task,

When implemented in the transparent screen of the protective screen (mainly 'flip type') of the protective screen to protect the mobile device from impact or contaminants or the touch screen protective film of mobile devices that are almost simply adopted. It is expected to be able to create new market demand by being excellent.

As described above, it is important to present a laminated film technology for a touch screen capable of non-capacitive touch input.

In particular, the present invention provides a touch screen laminated film capable of non-capacitive touch input according to the present invention so that information input or manipulation can be performed with respect to the touch screen even using a non-conductive tip such as a gloved hand or a conventional ballpoint pen. It aims to do it.

In addition, the present invention introduces a first conductive thin film layer, specifically a transparent first conductive thin film layer, and more specifically commercially available indium tin oxide (ITO) transparent electrode on the lower surface of the base film, and touches when not in use. It is an object of the present invention to provide a touch screen laminated film for a non-capacitive touch input composed of a support for forming a gap by separating the first conductive thin film layer and the touch screen so that an input is not made, a mobile device and a protective case using the same. do.

Furthermore, the present invention is to provide a laminated film having a continuous sub-support, which is composed of a non-conductive material, in particular coupled to a bezel region, and in particular, to block the gap between the first conductive thin film layer and the touch screen from the outside. The purpose.

In addition, an object of the present invention is to provide a laminated film composed of a wide support or a plurality of narrow support spaced apart from each other in a continuous sub support to secure universal applicability to various sizes of the touch screen.

In another aspect of the present invention, the support is intended to provide a laminated film further comprising a cross type sub support or a dot type sub support arranged in the gap region and intersecting with each other.

In addition, in order to maintain a flat state of the laminated film in the present invention, an object of the present invention is to introduce a shape retention force reinforcing layer on the lower surface of the first conductive thin film layer.

Furthermore, the present invention provides an adhesive layer on the upper and lower surfaces so that the support can be easily applied to a mobile device. In particular, the upper adhesive layer is an adhesive layer, and the lower adhesive layer is an adhesive layer. The purpose.

In another aspect, the present invention is formed by forming the adhesive layer and the adhesive layer on the upper and lower surfaces of the light-transmitting unprocessed film to cut the support shape, so that the support is cut on the lower surface of the first conductive thin film layer or the holding force reinforcing layer so as to be suitable for mass productivity. An object of the present invention is to provide a laminated film produced by adhesion.

Furthermore, the present invention is separated from the touch screen by the intensity (or height) (related to the sensitivity of the touch sensor) of the electron flux, which is the flow of electrons flowing on the liquid crystal of the touch capacitive touch screen, depends on the type of device. Considering that it is difficult to standardize the gap between the first conductive thin film layer and the distance between the touch screen and the first conductive thin film layer is too far or too close, the touch sensation may become unfamiliar and cause touch input errors. Another object of the present invention is to provide a touch screen laminated film in which a second conductive thin film layer is further introduced as a method of controlling the intensity of the electron flux.

More specifically, in the present invention, the second conductive thin film layer is arranged below the first conductive thin film layer and is discontinuous, so that the electron flux flowing through the touch screen liquid crystal due to the falling of the first conductive thin film layer by the pressurized touch has a second blank area. An object of the present invention is to provide a laminated film for a touch screen that is changed by a falling portion of the first conductive thin film layer to enable a touch input.

Another object of the present invention is to provide a laminated film for a touch screen incorporating a first blank area having an empty overlapping portion with the second conductive thin film layer on the first conductive thin film layer for reliable touch input.

Another object of the present invention is to provide a laminated film for a touch screen in which individual areas of the second conductive thin film layer overlapping with the first blank area are larger than each first blank area in order to ensure more reliable touch sensitivity.

In addition, an object of the present invention is to provide a laminated film for a touch screen configured to increase or decrease the unit size or unit density of the second conductive thin film layer as the intensity of the electron flux (flux) changes depending on the part of the touch screen.

In order to achieve the above object, the non-capacitive touch input laminated film for a touch screen according to the present invention is

It is a laminated film that can be input and manipulated even for non-capacitive touch type on a touch screen capable of touch type touch input.

A base film exposed on the upper surface;

A first conductive thin film layer coupled to the bottom surface of the base film and arranged toward the touch capacitive touch screen; And

Upper and lower surfaces are attached to the first conductive thin film layer and the touch screen, respectively, to support the shielding of the sensing of the first conductive thin film layer of the touch screen by separating the first conductive thin film layer and the touch screen; It is made, including.

In addition, in the laminated film for a touch screen capable of non-capacitive touch input according to the present invention

The support forms a gap by separating the first conductive thin film layer and the touch screen,

The support is an elastic layer attached to the first conductive thin film layer, and shields sensing of the touch screen with respect to the first conductive thin film layer when not in use. Sensing is made to the conductive thin film layer,

The support is made of a non-conductive material,

The support is coupled to the bezel area of the touch screen,

The support includes a continuous sub support for blocking the gap between the first conductive thin film layer and the touch screen from the outside,

The continuous sub support is one wide support or a plurality of spaced apart mutually spaced support, or both, to be applied to touch screens of various sizes and shapes,

The support includes a cross type sub support arranged in the gap region and intersecting with each other;

The support includes a dot type sub support arranged in the gap region,

The lower portion of the support is further coupled to the cover film,

The lower surface of the first conductive thin film layer is further provided with a shape retention force reinforcing layer,

The hard film layer is provided on the upper surface of the base film,

The support is provided with an adhesion layer on the upper and lower surfaces,

The upper adhesion layer is an adhesive layer, the lower adhesion layer is an adhesive layer,

The support is preferably formed by forming an adhesive layer and a pressure-sensitive adhesive layer on the upper and lower surfaces of the light-transmissive raw film, and cutting the support shape.

Furthermore, a mobile device using a touch screen laminated film capable of non-capacitive touch input is configured by being coupled to a touch screen composed of the laminated film.

In addition, the protective case using the laminated film for the touch screen capable of non-capacitive touch input is characterized in that it is coupled to the touch window composed of the laminated film.

On the other hand, to adjust the intensity of the flux in consideration of the fact that the intensity (or height) (related to the sensitivity of the touch sensor) of the electronic flux (flux) of the touch screen according to the type of device, the non-capacitive type according to the present invention Touch screen laminated film for touch input

A second conductive thin film layer which is arranged below the first conductive thin film layer and is discontinuous and has a second blank area is further provided.

In addition, the first conductive thin film layer has a first blank area with an empty overlapping portion with the second conductive thin film layer,

Individual areas of the second conductive thin film layer overlapping each first blank area are larger than each first blank area,

It is preferable that the unit size or unit density of the second conductive thin film layer is increased or decreased as the intensity of the electron flux changes according to the portion of the touch screen.

According to the present invention, a laminated film for a touch screen capable of a non-capacitive touch input may include a first conductive thin film layer, specifically a transparent first conductive thin film layer, and more specifically commercially available ITO (layered film) on a lower surface of a base film. Indium Tin Oxide) Introducing a transparent electrode, the touch screen laminated film capable of non-capacitive touch input composed of a support to form a gap by separating the first conductive thin film layer and the touch screen so that touch input is not made when not in use In addition, it is possible to provide a protective case using the same, so that the user can input or manipulate information on the touch screen even with a gloved hand or a non-conductive tip such as a conventional ballpoint pen. Can be used anytime and anywhere, dramatically improving usability. The.

Furthermore, the present invention provides a touch capacitive touch input by adjusting the intensity of the flux in consideration of the fact that the intensity (or height) of the electronic flux of the touch screen (related to the sensitivity of the touch sensor) varies depending on the type of device. In order to introduce non-capacitive touch input and operation without error for this possible touch screen, the laminated film is introduced.

The second conductive thin film layer was further introduced, and the second conductive thin film layer was spaced apart and discontinuously below the first conductive thin film layer so as to have a second blank area, which flowed over the touch screen liquid crystal by the lowering of the first conductive thin film layer by the pressurized touch. The electron flux is changed by the falling portion of the first conductive thin film layer to enable touch input.

It is possible to standardize the gap between the touch screen and the first conductive thin film layer by controlling the intensity of the electronic flux, which varies according to the type of device, thereby uniformizing the user's touch sense.

A first blank area having an empty overlapping portion with the second conductive thin film layer is introduced into the first conductive thin film layer, and individual areas of the second conductive thin film layer overlapping with the first blank area are larger than each first blank area. In addition, the unit size or unit density of the second conductive thin film layer may be increased or decreased as the intensity of the electron flux changes according to the portion of the touch screen, thereby ensuring more reliable and uniform touch sensitivity.

1 and 2 are an exploded perspective view and a picture substitute and a cross-sectional view of a mobile device to which a non-capacitive touch input laminated film for a touch screen according to the present invention is applied.

3 and 4 are an exploded perspective view and an exploded cross-sectional view of a mobile device to which a non-capacitive touch input laminated film for a touch screen according to the present invention is applied.

Figure 5 is a schematic diagram illustrating the principle of non-capacitive touch input when applying a touch screen laminated film according to the present invention to a mobile device.

Figure 6 is a photograph of a protective case applying the laminated film for a touch screen according to the present invention to a translucent touch window.

[A] and [B] of FIG. 7 are photographs of an example of use of a protective device for a mobile device to which a non-capacitive touch input laminated film for a touch screen according to the present invention is applied.

[C] and [D] of Figure 7 is a production picture of a mobile device protective case applying a laminated film for a touch screen capable of non-capacitive touch input according to the present invention.

8 and 9 are cross-sectional views of the modified laminated film.

10 is a view for another modified laminated film.

Explanation of symbols on the main parts of the drawings

M: Mobile device S: Touch screen

P: Protective Case 10: Base Film

20: first conductive thin film layer 30: support

31: Continuous sub support 33: Cross type sub support

35: dot type sub support 40: holding force reinforcing layer

50: cover film 30m: elastic layer (deformation support)

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

Since the present invention may be modified in various ways and have various forms, embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In each of the drawings, the same reference numerals, in particular, the tens and ones digits, or the same digits, tens, ones, and alphabets refer to members having the same or similar functions, and unless otherwise specified, each member in the figures The member referred to by the reference numeral may be regarded as a member conforming to these criteria.

In addition, the components (particularly, the thickness of each layer of the laminated film) in each drawing express the size or thickness excessively large (or thick) small (or thin) or simplified by considering the convenience of understanding. The protection scope of the present invention should not be limitedly interpreted.

The terminology used herein is for the purpose of describing particular embodiments (suns, aspects, and embodiments) (or embodiments) only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms “comprises” or “consists” are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, but one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

For explaining the non-capacitive touch input according to the present invention, the touch screen laminated film (F), the mobile device (M) and the protective case (P) using the same, the approximate direction reference is not strictly for convenience. And with reference to FIG. 4,

The upper side of the exposed surface on which the touch input is made is determined as the upper side, and the side provided with the first conductive thin film layer 20 is determined as the lower side in consideration of the situation in which the laminated film F is attached to the mobile device M.

In addition, with respect to the laminated film (F) for the touch screen capable of non-capacitive touch input according to the present invention

'Adhesive' refers to both 'adhesive' and 'adhesive',

"Bonding" means a member that is the same as adhesive and provides a firm bond,

'Adhesive layer' refers to a member that can be easily separated after attachment like a conventional silicone adhesive and does not leave a residue on the object to be attached (eg, a touch screen of a mobile device) even when detached.

Furthermore, in relation to the concept of 'attached to the first conductive thin film layer and the touch screen respectively,' the simple 'contact' (e.g. mainly seen in the touch window of the protective case) indicates that the support is 'attached' to the touch screen of the mobile device. When the laminated film (F) of the invention is utilized) or 'adhesive' (for example, when the laminated film (F) of the present invention is directly adhered to the touch screen of a mobile device), the concept and the meaning of 'adhesive' It means.

As shown in Figure 1 and 2, the non-capacitive touch input laminated film (F) is possible according to the present invention

Touch screen (S) capable of touch capacitive touch input is a laminated film that can be input and manipulated even for non-capacitive touch,

A base film exposed on the upper surface;

A first conductive thin film layer 20 coupled to the bottom surface of the base film and arranged toward the touch capacitive touch screen; And

A support 30 shielding sensing of the first conductive thin film layer of the touch screen by separating the first conductive thin film layer from the touch screen;

It is made, including

A cover film 50 is further provided below the first conductive thin film layer.

The support is preferably coupled to the first conductive thin film layer side or the cover film side, or both.

In addition, the first conductive thin film layer 20 is the edge portion in contact with the touch screen (through the cover film 50) (see schematic coupling cross-sectional view of Figure 2),

As shown in the schematic cross sectional view of the middle one-dot chain line circle of FIG. 2, the inner portion may be curved to form the separation space Fs.

In addition, as shown in a schematic modified cross-sectional view of the lower one-dot chain line circle of FIG. 2, the support is coupled to the cover film 50 provided under the first conductive thin film layer, and the first conductive thin film layer is connected to the support. It is preferred to be spaced apart.

In FIG. 2, the base film is not separately indicated by a reference numeral, and is illustrated as a composite film FL provided with the first conductive thin film layer 20.

2, the formation of the separation space Fs through the separation of the support 35 and the first conductive thin film layer 20, that is, the composite film FL, is shown in the bent portion of the composite film side. Implementation through 20a).

Attaching the composite film and the cover film can be made in a variety of ways,

As will be described later, the formation method and shape of the support may be variously modified, and the separation space may also be formed in various ways.

In the schematic cross-sectional view in the middle one-dot chain line circle, just below the photograph of the embodiment (substitute drawing) of FIG. 2, the reference numeral '31m' is an adhesive means, and the cover film 50 is bent in the composite film FL through the adhesive means. It is attached to form the separation space (Fs).

3 and 4, the laminated film F according to the present invention is a non-capacitive touch input and manipulation using a non-conductive tip such as a user's gloved hand or a conventional ballpoint pen. In order to enable information input or manipulation even with respect to the touch screen, the base film 10 includes a base film 10, a first conductive thin film layer 20 under the base film, and a support 30 under the first conductive thin film layer. do.

The base film 10 is usually a PET material, but other PP or a film of a variety of synthetic resin material may be utilized.

Alternatively, the base film may utilize tempered glass sheet (flexibility),

As a result, in the present invention, not only the 'soft' 'base member' such as the base film (or sheet) or the silicon thin film of the normal base film, but also the 'hard' 'base member' such as the flexible tempered glass sheet to be.

As shown in the exploded cross-sectional view of Figure 4, it is preferable that a known hard coating layer 11 that provides abrasion resistance on the base film 10 is introduced.

The first conductive thin film layer 20 (or 'thin electrode layer') is coupled to the bottom surface of the base film 10 and arranged toward the touch capacitive touch screen S.

A first conductive thin film layer, specifically, a transparent first conductive thin film layer, more specifically, commercially available indium tin oxide (ITO) transparent electrodes,

Known products, in particular, mass-produced products can be purchased on the market and laminated with a base film, or a mass-produced product in which the [hard coating layer 11-base film 10] is laminated, and only the first conductive thin film layer is introduced in a known manner;

Alternatively, the finished product [hard coating layer 11-base film 10-first conductive thin film layer 20] can be purchased and used.

Between the lower surface of the base film 10 and the first conductive thin film layer 20, a bonding layer is usually formed as shown in FIG. 4 (also a modified example of an exploded cross-sectional view in the upper single-dot chain line in FIG. 4 (the number of laminated layers is relatively small)). (21) is introduced, the bonding layer 21 may be bonded by a known 'OCA' method, or may be a UV curing bonding method.

Furthermore, the lower surface of the first conductive thin film layer 20 is further provided with a shape retaining force reinforcing layer 40, so that the first conductive thin film layer is separated from the touch screen so that a touch input is not made when not in use.

Sensing the first conductive thin film layer of the touch screen (essentially a mobile device) to maintain the shielding state, and use for a long time (more than 10,000 times, preferably more than 30,000 times, more preferably more than 50,000 times) It is desirable to make this possible. The holding force reinforcing layer 40 may utilize a PET film, attach various other synthetic resin films, or introduce a coating method.

When the holding force reinforcing layer 40 using the film is introduced, the bonding layer 23 may be introduced on the reinforcing layer as shown in FIG. 4.

If necessary, as in the modified example of the exploded cross-sectional view in the upper one-dot chain line circle of Figure 4, it is possible to utilize the laminated film (F) simply omitted the retention force reinforcing layer.

Meanwhile, the upper and lower surfaces of the support 30 constituting the core of the present invention are attached to the first conductive thin film layer 20 and the touch screen S, respectively, so that the first conductive thin film layer and the touch screen are separated from each other.

The function of shielding the sensing of the touch screen for the first conductive thin film layer,

Such shielding force is applied to the gap 20S provided under the first conductive thin film layer 20, such as the basic laminated film F of FIGS. 3 to 5 or the modified laminated films F1 and F2 of FIG. 7. Provided by, or

Like the other modified laminated film F3 of FIG. 9, it may be obtained by an elastic layer 30m.

The shielding function by the gap 20S or the elastic layer 30m is a function of providing a separation distance such that the sensitivity of the capacitive sensor introduced into the touch screen of the mobile device does not fall below the first conductive thin film layer 20. .

As such, the support 30 plays a key function of preventing the first conductive thin film layer 20 from contacting the touch screen S of the mobile device M when the mobile device M is not used.

Such support 30 is preferably made of a non-conductive material,

In addition, the gap 20S-provided support 30 as shown in FIGS. 3 to 6 includes a portion attached (or contacted) to the bezel M1 (see FIG. 3) region of the touch screen S. FIG. It is preferable.

In particular, the portion of the support 30 coupled to the bezel M1 region of the touch screen S is preferably a continuous sub support 31 that blocks the gap between the first conductive thin film layer and the touch screen from the outside.

The thickness of the support 30 (more essentially, the separation distance between the first conductive thin film layer 20 and the touch screen S) is 20 to 200 μm, preferably 30 to 150 μm, more preferably 30 to 100. It is good that it is 30-70 micrometers, More preferably, it is 40-60 micrometers.

Furthermore, the continuous sub support can be applied to touch screens of various sizes and shapes to secure versatility.

One wide support 31A as in the left variant in the dashed-dotted circle at the top of FIG. 3 or

It is preferable that it is a some narrow support 31B spaced apart from each other like the right modification in the dashed-dotted circle of the upper part of FIG. 3, or both.

Finished products provided to wholesalers or retailers after manufacture may be cut to the size and shape of the touch screen of the mobile device to be used, or may be cut and used to a required size by a consumer (end consumer or intermediate manufacturer),

After cutting, the wide support 31A or the narrow support 31B remains, and the continuous sub support is present.

The portion still coupled to the bezel M1 region of the touch screen S may block the gap 20S between the first conductive thin film layer and the touch screen from the outside.

Meanwhile, referring to [C] and [D] of FIG. 7, it is possible to see a photo produced by applying to a protective case P for a mobile device having a continuous sub support 31.

[C] of FIG. 7 first applies the laminated film F of the present invention to the touch window P1, and manufactures a flip type cover through the support 30 (see FIG. 5). As shown in D], the coupling member P2 of the protective case is fixed using a mold member (molded part), and the laminated film F and the support 30 are attached to the touch window P1 (see FIG. 5). It can be applied to manufacture a flip type (flip) type cover.

The mold member may improve the market competitiveness of the product by lowering the manufacturing cost by introducing a mold member that can be modified to produce a coupling member (P2) that can be combined with a variety of mobile devices, or a molding method using a jig.

In particular, the user of the capacitive touch screen anytime and anywhere by manufacturing a flip type cover or a wallet type protective case to which the continuous sub support 31 (see FIG. 3) and the laminated film F of the present invention are applied. It can be used as a non-conductor (B), such as gloved hands or ballpoint pen.

In addition, the continuous sub-support of the present invention, as shown in [C] and [D] of FIG. 7, a border member (natural or natural) for connecting the touch window P1 to the rear coupling member P2 for receiving the mobile device M. It can be configured in the form of artificial leather, various synthetic resin thin sheets (or sheets), and other glass or ceramic materials.

As shown in FIG. 3, the support 30 preferably includes a cross type sub support 33 arranged in the gap 20S (see FIG. 4) and intersecting with each other. The touch input unit Ft having various shapes such as a rectangular rhombus may be provided.

Furthermore, as in the modified dashed circle in the upper portion of FIG. 3, the support may be a dot type sub support 35 arranged in the gap region, and the dot type sub support 35 may be circular, inadequate, It can have various sizes such as triangles and squares.

The width of the cross type sub support 33 and the diameter of the dot type sub support 35 are preferably about 1 mm (when the dot type sub support 35 is non-circular, the circular dot type sub support 35 of about 1 mm or less). It is preferred to have an area corresponding to the area converted to)).

Furthermore, as shown continuously in the left one-dot chain line in FIG. 4, it is preferable that the said

support

30, 33 is provided with the adhesion layer in the upper and lower surfaces,

In particular, the upper adhesion layer is an adhesive layer 37A, and the lower adhesion layer is an adhesive layer 37B.

To ensure the firmness in the case of being attached to the first conductive thin film layer 20 or the shape retaining force reinforcing layer 40 (in the case of the adhesive layer 37A),

When attached to the touch screen (S) of the mobile device it is desirable to ensure the adhesion and the contamination prevention function (in the case of the adhesive layer 37B) of the touch screen of the detached yarn.

The manufacture of such a support is, for example, schematically shown in the upper left one-dot chain line of Figure 2,

An adhesive layer 37a and an adhesive layer 37b are formed on the upper and lower surfaces of the light-transmissive raw film 30p, respectively.

Manufactured by cutting the desired support shape,

Thomson processing (Tomson processing) used in press machines, printing, box manufacturing, and other fields (eg paper puzzle manufacturing). It may be a device that is utilized in the process of making a wooden die and a box, etc.).

In addition, the dot type sub support 35 and the cross type sub support 33 are masking techniques used for screen printing, etching, deposition, etc., which are utilized for various double-sided tape applications, UV curing molding, silicon molding, printing techniques, and the like. It can be prepared through.

The principle of the laminated film (F) of the present invention as shown in Figure 5 when applied to a mobile device (M), especially a mobile phone.

That is, in a state where the gap 20S is guaranteed to maintain a shielding state of sensing the first conductive thin film layer of the touch screen (essentially a mobile device), that is, in an unused state.

Non-capacitive touch input using gloved fingers or ordinary non-conductive writing instruments, or capacitive touch input using bare hands or conductive writing instruments (such as a stylus pen with electrode tip).

As the laminated film F is deformed, the gap 20S becomes narrower.

Accordingly, the capacitive sensor introduced to the touch screen of the mobile device can detect the first conductive thin film layer 20.

Accordingly, information input or manipulation is possible on the touch screen.

Furthermore, as shown in the drawing substitute picture of FIG. 6, the protective case P for a conventional buffer or pollution prevention mobile device having a back coupling member P2 for receiving the touch window P1 and the mobile device M can be found. As described above, the laminated film F of the present invention is applied to the touch window P1, and the touch window P1 of the flip type cover (or purse cover) is closed through the support 30. In use, the first conductive thin film layer 20 is not in contact with each other,

During use, information input and manipulation using a stylus pen with a bare finger or electrode tip, that is, 'capacitive touch input and manipulation',

Even using a gloved hand or a non-conductive tip such as a conventional ballpoint pen, the touch screen can be smoothly inputted or manipulated, ie, 'capacitive touch input and manipulation'.

In addition, referring to [A] of FIG. 7, it can be seen that the touch screen S of the mobile device is not recognized when the non-conductor B is in direct contact.

However, referring to [B] of FIG. 7, the laminated film F of the present invention is applied to the touch window P1, and the touch window P1 of the flip type cover is supported through the support 30 (see FIG. 5). In the closed state, the first conductive thin film layer 20 (see FIG. 5) comes into contact with each other to confirm that the insulator B can be recognized.

Meanwhile, FIG. 8 illustrates a laminated film F1 in which a cover film 50 is separately introduced on a lower surface of a dot type sub support or a cross type sub support (including other continuous sub supports).

They are not all directly attached to the touch screen (S) of the mobile device (M), for example, the laminated film (F1) of the present invention,

As in the case of applying to the touch window (P1) of the protective case (P) as shown in FIG.

Even if the support is exposed as it is, even a thin support of tens of micrometers can meet the need to prevent the occurrence of contamination, aesthetic or functional problems.

The gap 20S is maintained to provide a sensing shielding force of the touch screen with respect to the first conductive thin film layer.

In the laminated film F1 of FIG. 8, the gap 20S may be filled with helium gas or various other gases as necessary or normally filled with air.

In addition, the cover film 50 is attached to the 'first conductive thin film layer and the touch screen, respectively, and assists a function of shielding the sensing of the first conductive thin film layer of the touch screen by separating the first conductive thin film layer and the touch screen. This member belongs to 'support'.

Further, the attachment of the support 30 and the cover film 50 is preferably a method using an 'adhesive' rather than an 'adhesive'.

9 illustrates a modified laminated film F3 having an elastic layer 30m below the first conductive thin film layer 20 as a support 30.

The elastic layer 30m of the modified laminated film F3 may be formed by, for example, coating a silicone resin with a coating method, or may be a separate elastic (rubber or silicone, other elastomer) film bonded thereto.

The thickness may be several tens of micrometers.

The elastic layer (30m) shields the sensing of the first conductive thin film layer of the touch screen when in use,

In use, the pressure is deformed by an external force to thin the thin portion 39 to form a sensing of the first conductive thin film layer of the touch screen.

Next, FIG. 10 illustrates a laminated film corresponding to another modified example.

This is because the intensity (or height) of the electron flux (relative to the sensitivity of the touch sensor), which is the flow of electrons that flowed over the liquid crystal of a touch-capacitive touchscreen, depends on the type of device, and even on a device, Taking the point into account (such as setting the bezel area, its interior, and the intensity of the electron flux of a particular area larger (higher), depending on the design of the device)

Although the intensity of the electronic flux varies from touch screen device to device or from one touch screen device to another,

By uniformly separating the distance between the first conductive thin film layer and the touch screen

To secure mass production and uniformity of quality, to minimize defective rate, to secure user's touch sense (cushion due to gap caused by support 30)

It relates to a laminated film F2 having a second conductive film layer 60 introduced under the first conductive film layer 20.

The second conductive thin film layer 60 is spaced apart from the first conductive thin film layer 20, and the gap is curved inside the support 30 or the middle one-dot chain line in FIG. 2 to form a space Fs. It can be ensured by the bent part 20a of the composite film side which ensures, or both.

In this way, the second conductive thin film layer 60 is arranged below the first conductive thin film layer 20 and is discontinuous so that the second blank area 60e is brought into the touch screen to lower the first conductive thin film layer 20 by the pressure touch. The electron flux flowing on the liquid crystal is changed by the falling portion of the first conductive thin film layer 20, thereby enabling touch input.

Touch screens with touch capacitive touch inputs, such as touch sensors of mass-market smartphones, generally use static electricity from the body, for example, an electronic flux that flows on a liquid crystal when a finger touches the touch screen. flux is attracted to the contact point and is recognizable

If the second conductive thin film layer is continuous and covers the entire surface of the touch screen, electrons are already dispersed and attracted to the surface, so even if the first conductive thin film layer is deformed by pressing the upper conductive film for touch screen operation, no additional movement of electrons occurs. Input and operation become impossible.

If necessary, the conductive flux reinforcement layer is formed by printing with ink containing a metal component in order to increase the sensitivity of the weak electronic flux (the Wazen region) of the touch screen, thereby increasing the strength (height) of the electron plus. An artificially increasing method can be introduced, and this conductive flux reinforcing layer is also included in the concept of the second conductive thin film layer.

Furthermore, the present invention shows the first and second conductive thin film layers 20 and 60 in the lower first left and right dashed line circle of FIG. 10,

In order to ensure a touch input, a first blank region 20e having an empty overlapping portion with the second conductive thin film layer may be introduced into the first conductive thin film layer 20.

When the first blank area 20e is absent, the gap 20S (see FIG. 5) is contracted under the pressurization of the first conductive thin film layer 20 for touch, so that the first conductive thin film layer 20 and the second conductive thin film layer ( 20) overlap, specifically, the transparent conductive thin film layer, more specifically commercially available indium tin oxide (ITO) transparent electrodes overlap each other, thereby causing an abnormal situation in the flow of electron flux, affecting touch sensitivity and reducing operation errors. Problems may occur that do not occur, or operation that matches the design or intended touch sensitivity.

Further, in order to ensure a more reliable touch sensitivity, the individual regions 60r of the second conductive thin film layer 60 overlapping with the first blank regions 20e are configured to be larger than the first blank regions 20r.

According to the pressing angle of the first conductive thin film layer 20, the vertical compression is not precisely performed, so that the individual blanks 20r of the second conductive thin film layer 60 do not exactly overlap each first blank area 20r,

The error according to the touch screen attachment position of the mobile device, etc., in which the first and second conductive thin film layers 20 and 60 are introduced.

When the first and second conductive thin film layers 20 and 60 are introduced to form a transparent window of a protective cover (mainly 'flip type') of a protective case for a mobile device, the second conductive thin film layer 60 may also be separated. The area 60r does not exactly match when each first blank area 20r is observed in a plane, so that an error occurs.

In each case, when the first conductive thin film layer 20 is pressed for the touch input operation, the individual first blank areas 20r may exactly overlap the individual areas 60r of the second conductive thin film layer 60.

In other words, the relatively large and small second conductive thin film layer 60 and the first blank area 20r are respectively introduced.

Even when the first conductive thin film layer 20 is pressed for any touch input operation, the first blank area 20e of the first conductive thin film layer 20 overlaps with the second blank area 60e so as not to cause touch failure or error. It becomes possible.

Furthermore, ideally, the individual regions 60r of the second conductive thin film layer 60 should have the same area and shape as or larger than the individual first blank regions 20r.

The individual regions 60r of the second conductive thin film layer 60 may correspond to or different from each other in the shape of the individual first blank regions 20r of the first conductive thin film layer 20, and may have various dot type shapes such as circular, square, and rhombus. It can be introduced into other discontinuous shapes such as grid type.

In addition, the second conductive thin film layer 60 may be introduced onto the cover film 50 as shown in FIG. 8 so that the cover film may be attached to the touch screen or directly formed on the touch screen.

When introduced into the transparent window of the protective cover (mainly 'flip type') of the protective case, it may be introduced into a separate lower cover film.

Meanwhile, the present invention may be configured such that the unit size or unit density of the second conductive thin film layer is increased or decreased as the intensity of the electron flux is changed according to the portion of the touch screen of one individual device.

A discontinuous second conductive thin film layer using a transparent (or translucent) first conductive thin film layer, more specifically, an indium tin oxide (ITO) transparent (or translucent) electrode, which is commercially available, is basically used as the intensity (or To lower the height)

To lower the strong electronic flux in the middle of the touch screen of devices such as smartphones

As shown in the lower right one-dot chain line in FIG. 10, the second conductive thin film layer 60b is formed to be relatively large in the middle portion as compared with the introduction of the small second conductive thin film layer 60s in the upper and lower portions.

As in the lower left one-dot chain line in FIG. 10, a method of forming a second conductive thin film layer 60h having a relatively high density in the middle portion may be introduced as compared with the introduction of the low density second conductive thin film layer 60L in the upper and lower portions. have.

In the above description of the present invention with reference to the accompanying drawings, but with a specific arrangement, configuration, shape and structure of the laminated film, mobile devices, the protective case mainly described, but the present invention can be variously modified, changed and replaced by those skilled in the art And, such modifications, changes and substitutions should be construed as falling within the protection scope of the present invention.

Claims

It is a laminated film that can be input and manipulated even for non-capacitive touch type on a touch screen capable of touch type touch input.

A base film exposed on the upper surface;

A first conductive thin film layer coupled to the bottom surface of the base film and arranged toward the touch capacitive touch screen; And

A support for shielding a sensing of the first conductive thin film layer of the touch screen by separating the first conductive thin film layer from the touch screen;

Laminated film for a touch screen capable of capacitive touch input made, including.
The method of claim 1,

A cover film is further provided below the first conductive thin film layer,

The support is a laminated film for a touch screen capable of capacitive touch input, characterized in that coupled to the first conductive thin film layer side or the cover film side, or both.
The method according to claim 1 or 2,

The edge portion of the first conductive thin film layer is in contact with the touch screen,

Laminated film for a touch screen capable of capacitive touch input, characterized in that the inner portion is curved.
The method according to claim 1 or 2,

The support is coupled to the cover film side provided below the first conductive thin film layer,

The first conductive thin film layer is a touch screen laminated film for a capacitive touch input, characterized in that spaced apart from the support.
The method of claim 1,

A second conductive thin film layer is disposed below the first conductive thin film layer and is discontinuous so as to have a second blank area.

The touch screen laminated film for a non-capacitive touch input, characterized in that the electronic flux of the touch screen is controlled by the second conductive thin film layer.
The method of claim 5,

And wherein the first conductive thin film layer has a first blank area having an empty overlapping portion with the second conductive thin film layer.
The method of claim 6,

The discrete film of the second conductive thin film layer overlapping each of the first blank areas is larger than each of the first blank areas.
The method according to any one of claims 5 to 7,

The laminated film for a touch screen capable of capacitive touch input, characterized in that the unit size or unit density of the second conductive thin film layer is increased or decreased as the intensity of the electron flux is changed according to the portion of the touch screen.