KR20180127879A - Protective Film for Touch Input by Non-Conductive Material - Google Patents

Abstract

The present invention relates to a protective film for a smart device, capable of touch input with a non-conductive object. More specifically, grid-like electrically open patterns are formed on a first conductive layer which is a lower conductive film constituting the protective film for a smart device such as a smartphone. Patterns electrically connected to each other are formed in a plurality of straight lines in the lateral direction on a second conductive layer which is an upper conductive film. When a user touches the protective film for a smart device of the present invention attached on a touch panel of a smart device such as a smartphone by using a non-conductive object such as wood or rubber gloves, the correct point on the surface of the touch panel of the corresponding smart device is touched, and a touch signal is correctly input.

Description

{Protective Film for Touch Input by Non-Conductive Material}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a protective film for a smart device capable of touch input by a nonconductive object, and more particularly, to a protective film for a smart device, A pattern electrically connected to each other is formed on the second conductive layer as a conductive film on the upper side and a plurality of conductive patterns electrically connected to each other are formed on the second conductive layer on the left side and the right side, When the touch panel of the smart device of the present invention is attached to the touch panel of the smart device, touch points of the touch panel surface of the smart device are touched and the touch signal is input correctly. To a protective film for a smart device capable of touch input.

BACKGROUND ART Conventionally, a technology related to a protective film for a mobile device such as a mobile phone, particularly a mobile device having a touch screen of a capacitive overlay type, is focused on a function of protecting a touch screen of a mobile device such as a mobile phone, Most of them focused on technology development.

In recent years, it has been necessary to develop a protective film technology that allows a user wearing a glove to input information by operating a touch screen of a mobile phone or a smart phone with gloved fingers while wearing gloves.

Touch screen protection of portable communication devices If the cover (lid) of the protective case for protecting the portable communication device from the film or shock or contaminant is realized as a transparent protective film capable of touch input by the non-jamming object, Is expected to create new market demand.

In order to meet such a demand, a laminated protective film technology for a touch screen capable of non-capacitive touch input is disclosed in Patent Registration No. 10-1537659-0000 (the name of the invention: a laminated film for a touch screen capable of inputting a non- Protection case) and a patent application 10-2013-103345 (the name of the invention: a laminated film for a touch screen capable of non-invasive capacitive touch input, a mobile device and a protective case using the laminated film).

However, when the user operates the touch screen on the smartphone by pressing the laminated film for the touch screen, which enables the user to input the touch screen of the conventional non-recurrent capacity type touch, the accurate part of the touch screen Sometimes a problem that can not be touched occurred. For example, even if the user tries to touch 'A', the 'A' portion can not be touched and the side portion is touched.

Further, due to the support for shielding the sensing of the first conductive thin film layer, there is a problem that the portion where the support is installed is not properly recognized.

A patent document similar to a protective film for a portable communication device capable of touch input with a nonconductive object according to the present invention includes a patent document 10-1537659-0000 (the name of the invention: a laminated film for a touch screen capable of inputting a non- And 10-2013-103345 (the name of the invention: a laminated film for a touch screen capable of non-invasive capacitive touch input, a mobile device using the same, and a protective case).

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in order to solve the problems of the prior art described above, and it is an object of the present invention to provide a method for patterning a first conductive layer film of an electronic flux FLUX emitted from a smart device such as a smart phone, The electromagnetic flux is collected in each of the conductive parts and when the user presses one of the upper ends of the protective film of the present invention with the nonconductive object, the second conductive layer film is pressed to a specific conductive part in contact with the first conductive layer The object of the present invention is to provide a protective film for a smart device capable of performing touch input with a nonconductive object which allows a touch input portion to be accurately touched.

Smart devices such as smart phones develop software by taking into consideration the part of the touch panel that touches the touch panel (for example, the size of the touching area of the finger), such as the finger size of the user, The size of the portion where the consonant or vowel of the portable communication device is recognized can be manufactured by referring to the size of the product or the like and by referring to the size and the like of the display panel of the portable communication device, The touch panel of the smart device can recognize the touch input through the protective film of the present invention without a malfunction.

According to an aspect of the present invention, there is provided a protective film for a smart device capable of touch input with a nonconductive object according to the present invention, comprising: a display panel on which information is input by a capacitive touch; A protective film capable of touch input,

A first reinforcing layer; A first conductive layer coupled to the first reinforcing layer; A second conductive layer overlying the first conductive layer; And

And a second reinforcing layer coupled to the second conductive layer, wherein a facing inner rim of the first conductive layer and the second conductive layer are bonded by a rim bonding layer,

Wherein the first conductive layer is formed in a grid pattern in which a rectangle or a square is disposed, and a boundary line of each grid pattern forms a non-conductive portion that can not transmit an electrical signal, And the conductive portions are electrically opened to each other,

Wherein the second conductive layer forms a line-shaped conductive portion extending laterally with respect to the longitudinal direction, the linear conductive portion is formed of a conductive material, a conductive material is formed in a rim portion of the conductive portion, Wherein the conductive portion of the first electrode is electrically connected to the edge region,

And the length between each linear conductive portion of the second conductive layer is shorter than the vertical length of each conductive portion of the first conductive layer,

And two openings are vertically or horizontally formed in the edge adhesive layer.

A protective film for a smart device capable of touch input with a nonconductive object according to the present invention is installed on the front surface of a capacitive touch screen of a smart device such as a smart phone and presses the first conductive layer and the second conductive layer, The protective film according to the present invention is applied to a film on which the first conductive layer is formed and a plurality of open square or rectangular shapes having a size equal to or larger than the area of the input button or the application button of the touch screen, Type cell and the gap between the open cells is 1um (micrometer) to 100um, the function of increasing the sensitivity of the electromagnetic flux, and the electromagnetic flux passing through the open cell is the sensitivity Is transmitted to the area of each input button or application button displayed on the display unit of the smart device When the non-conductive material is brought into contact with the touch panel of the smart device, it is possible to accurately transmit an electrical touch signal to prevent malfunction of the touch input.

In addition, since the second conductive layer according to the present invention minimizes a portion contacting with the first conductive layer through a linear conductive part formed to extend laterally, the second conductive layer is formed into a plurality of thin lines having a small width, The width of the line must be between 30um (micrometer) and 300um, so that the input of the electrical signal can be accurately transmitted to the display unit of the smart device.

And the spacing between each line-shaped conductive part is 0.5 mm to 4 mm. Also, a large area ground is formed on the bubble side of the smart device such as a smart phone so that the ground is formed to have a large area on the outer portion of the second conductive layer.

A plurality of conductive parts formed in a line shape extending left and right may be electrically connected to the outer conductive parts as a whole and the ground area may be maximized to maximize the use of the ground. As the area of the outer conductive part formed on the outer side of the second conductive layer according to the present invention increases, the accuracy of the touch input and the speed of transmission of the input signal can be greatly improved when the touch input is transmitted to the smart device.

If the air layer between the second conductive layer and the first conductive layer according to the present invention does not press the second conductive layer by using a nonconductive object, the gap between the second conductive layer and the first conductive layer It is possible to form openings through which air can flow in the upper and lower and / or left and right sides of the edge bonding portion so that the air quickly flows into the air layer so as to be spaced apart.

The second conductive layer and the first conductive layer according to the present invention have an air layer of 50um (micrometer) to 200um (micrometer) to form an opening through which air can flow. When the second conductive layer is pressed Even if the air in the air layer is discharged due to the heat generated when charging the smart device such as a smart phone, the air is rapidly introduced into the air layer through the opening, There is a remarkable effect that the inflow is fast.

When a protective film for a smart device capable of touch input with a nonconductive object according to the present invention is installed on a display unit of a smart device, a remarkable effect that a nonconductive object such as a rubber glove can be used to precisely touch an object have.

Since the protective film for a smart device capable of touch input with a nonconductive object according to the present invention can be touched by a minute nonconductive object such as a business card, a ballpoint pen, a chopstick, etc., the convenience of the user is improved and improved.

The conductive part of the second conductive layer according to the present invention is formed in a line shape and the eye grounding layer is formed at the outer part, that is, the outer part where the touch input of the smart device does not become. The larger the area of the grounding layer, .

1 is a perspective view of a protective film for a smart device capable of touch input with a nonconductive object according to the present invention attached on a display panel of a smart device.
2 is a sectional view of a cut laminated structure of a cut laminated structure of a protective film for a smart device capable of touch input with a nonconductive object according to the present invention.
3 is a front view showing a detailed structure of each film layer including a first conductive layer and a second conductive layer constituting a protective film for a smart device capable of touch input with a nonconductive object according to the present invention.
4 is a plan view showing a patterned structure of a first conductive layer in a protective film for a smart device capable of touch input with a nonconductive object according to the present invention.
5 is an enlarged view showing an enlarged view of a portion of the first conductive layer shown in FIG.
FIG. 6 is a plan view showing a quasi-plate portion of a smart device such as a conventional smart phone.
7 is a plan view showing a patterned structure of a second conductive layer in a protective film for a smart device capable of touch input with a nonconductive object according to the present invention.
8 is an enlarged view showing an enlarged view of a part of the second conductive layer shown in Fig.
FIG. 9 is a plan view showing a structure of a first adhesive layer and a second adhesive layer, which are attached to a first conductive layer and a second conductive frame, in a protective film for a smart device capable of touch input with a nonconductive object according to the present invention.
10 is an exemplary view for explaining the necessity of opening of the border adhesive layer in Fig.
11 is a plan view of a protective film for a smart device capable of touch input with a nonconductive object according to the present invention in which a portion where a touch signal is difficult to input due to a border adhesive layer is formed in the first conductive layer as an idle region.
12 is an explanatory view for explaining that a conductive material is inadvertently deposited along the outer edge of the first reinforcing layer on which the first conductive layer deposited in the actual production process is deposited.
13 is a plan view showing a patterned structure of another embodiment of a second conductive layer in a protective film for a smart device capable of touch input with a nonconductive object according to the present invention shown in FIG.
FIG. 14 is a diagram comparing the actually pressed shape when the second conductive layer shown in FIG. 7 is pressed with a nonconductive object to an ideal pressed shape.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

The present invention can make various changes and have various forms of embodiments. In the following drawings, the thicknesses of the respective laminated layers constituting the protective film according to the present invention are expressed thickly or thinly for convenience of understanding.

1 is a perspective view of a protective film for a smart device capable of touch input with a nonconductive object according to the present invention attached on a display panel of a smart device.

When a protective film 100 for a smart device capable of touch input with a nonconductive object according to the present invention is in close contact with a display portion 118 of a smart device 110 such as a smart phone or a tablet PC, When touch input is performed on the protective film 100 according to the present invention using a non-conductive tip such as a hand or a ballpoint pen, the touch input signal is transmitted to the display unit 118 of the smart device 110 such as a smart phone So that an application installed in the smart device 10 can be operated or operations such as surfing the Internet can be performed on the smart device 110. [

An electrostatic touch panel is installed on the display unit 118 of the smart device 110 such as a smart phone according to the present invention.

1, a protective film 100 for a smart device capable of touch input with a nonconductive object according to the present invention is formed on the surface of a display portion 118 of a smart device 110 on which a touch panel such as a smart phone is installed Use it after placing it in close contact.

The protective film 100 for a smart device capable of touch input with a nonconductive object according to the present invention can be used as a protective case front cover for a mobile phone used for protecting a smart device 110 such as a smart phone.

Therefore, unlike the conventional smartphone case, the user of the present invention does not need to open the protective film 100 of the present invention, which functions as a cover of the smartphone protective case, Even if the protective film 100 of the present invention is closed, the user can touch the protective film 100 with a rubber glove or with a ballpoint pen or the like so that the touch input can be performed on the display unit 118 of the smart device 110 can do.

2 is a sectional view of a cut laminated structure of a cut laminated structure of a protective film for a smart device capable of touch input with a nonconductive object according to the present invention. 3 is a front view showing a detailed structure of each film layer including a first conductive layer and a second conductive layer constituting a protective film for a smart device capable of touch input with a nonconductive object according to the present invention.

Referring to FIG. 2, a protective film 100 for a smart device capable of touch input with a nonconductive object according to the present invention, which is a cross section cut along the line AB of FIG. 1, includes a patterned first conductive layer 10, The patterned second conductive layer 20 formed on the first conductive layer 10 and the inner peripheral portion of the first conductive layer 10 and the second conductive layer 20 are closely contacted with each other, A first reinforcing layer 18 adhered to the first conductive layer 10 under the first conductive layer 10; a second conductive layer 20 on the second conductive layer 20; And a second reinforcing layer 28 adhered to the second reinforcing layer 28.

The first conductive layer 10 and the second conductive layer 20 according to the present invention may be a transparent conductive thin film layer, and currently commercially available ITO (Indium Tin Oxide) transparent electrodes may be used. In addition, conventionally known products are laminated together with reinforcing layers 18 and 28 made of a transparent synthetic resin such as PET material or PP or a glass layer of a thin film.

The edge adhesive layer 30 according to the present invention is composed of a double-sided tape. A double-sided tape having a width of 1.5 to 1.8 mm is provided as the edge adhesive layer 30 over the entire inner edges of the first conductive layer 10 and the second conductive layer 20 of the present invention.

The edge portions of the edges of the first conductive layer 10 and the second conductive layer 20 facing each other are closely contacted with each other by the edge adhesive layer 30 according to the present invention.

Openings 34 are formed in upper and lower portions of the edge adhesive layer 30 according to the present invention. Outside air flows into the inner air layer 25 through the upper and lower openings 34.

Referring to FIG. 3, the adhesive layer 19 may be further provided on the bottom surface of the reinforcing layer 18 attached to the lower portion of the first conductive layer 10 according to the present invention. The adhesive layer 19 according to the present invention is used for directly attaching to the smart device 110 and can constitute the adhesive layer 19 with silicon.

In the state that the lower surface of the protective film 100 for a smart device capable of touch input with the nonconductive object according to the present invention is in close contact with the display portion 118 of the smart device 110, The second conductive layer 20 formed of an ITO film and electrically connected to each other is formed by pressing a second conductive layer 20 having a linear shape extending in the left and right direction in the longitudinal direction using a finger or a ballpoint pen, If the conductive part 21 of the second conductive layer 20 is not etched and touches the conductive part 11 at a certain point of the protruded first conductive layer 10, An electrical signal is input to the corresponding region of the memory cell array.

4 is a plan view showing a patterned structure of a first conductive layer in a protective film for a smart device capable of touch input with a nonconductive object according to the present invention. 5 is an enlarged view showing an enlarged view of a portion of the first conductive layer shown in FIG.

4 to 5, the first conductive layer 10 of the present invention is configured such that the boundary line of the conductive portion is etched and patterned on the first reinforcing layer 18 in a lattice pattern. In addition to etching the conductive layer 10, the conductive portion 11 may be printed on the first reinforcing layer 18 by a printing technique.

The patterned first conductive layer 10 and the first reinforcing layer 18 according to the present invention are portions directly contacting the display portion 118 of the smart device 10.

The first conductive layer 10 of the present invention is formed by patterning the boundary of each conductive portion 11 in a lattice pattern as etching or printing and forming a rectangular or square conductive portion 11 and each conductive portion 11 Is formed as a non-conductive portion 13 in which the ITO transparent electrode film material is removed and each conductive portion 11 is electrically opened to each other.

As the width of the non-conductive part 13 of the present invention is made as narrow as possible, the touch input of the user operates without malfunction.

Since the conductive parts 11 of the first conductive layer 10 according to the present invention are electrically connected to each other and are composed of a plurality of conductive parts 11 having a lattice pattern, The accuracy is high.

Each of the conductive parts 11 arranged at a minute interval from each other in a lattice pattern form an electrically opened pattern on the first conductive layer 10 according to the present invention.

When the first conductive part 10 and the first reinforcing layer 18 according to the present invention are placed in direct contact with the display part 118 of the smart device 110, The software built in the smart device 110 recognizes that it is integrated with the display unit 118 constituted by the capacitive touch panel of the smart device 110 rather than recognizing that the conductive film of the smart device 110 is touching.

Therefore, when the electroconductive part 11 of the conductive part 11 of the first conductive layer 10 patterned in a lattice pattern is pressed, there is almost no malfunction in which the information inputted by touching is wrongly recognized .

In the conventional conductive layer formed of the conductive thin film which is not patterned with the conductive portions 11 mutually opened like the first conductive layer 10 of the present invention, when the conductive layer is pressed with a nonconductive object, There has been a problem that the touch input is applied to a portion that was not intended. The present invention solves this conventional problem by patterning the first conductive layer 10 so that each of the conductive parts 11 is electrically open to each other as shown in FIG.

The first conductive layer 10 according to the present invention is divided into a keyboard region 130 which is in contact with a keyboard portion for inputting an alphabet and a display region 110 in which an input alphabet is displayed.

The display area 110 according to the present invention is configured such that the non-conductive parts 13 are connected linearly in the horizontal direction and the vertical direction, and the keyboard area 130 according to the present invention has the non-conductive part 13, But is structured such that it is not constituted by a straight line in the longitudinal direction. That is, the number of conductive parts 11 in the transverse direction is different.

This is because the keyboard region 130 of the first conductive portion 10 of the protective film for a smart device capable of touch input with the nonconductive object according to the present invention is made to correspond to the configuration of the smartphone.

FIG. 6 is a plan view showing a quasi-plate portion of a smart device such as a conventional smart phone.

6, the quartz plate portion 132 of the conventional smart device 110 is composed of ten unit keyboards 133 at the top, nine unit keyboards 133 in the second, nine units in the third in the unit And a bottom portion is constituted by seven unit keyboards 133. As shown in FIG.

The electrically conductive parts (not shown) of the keyboard board area 130 are arranged in such a manner that the electrically conductive parts 11 are matched to the keyboard board area 130 at positions where the electrical signals of the unit keyboard 133 of the quartz plate 132 of the conventional smart device are input 11 have a pattern configuration.

Conventional space unit keyboard and return unit keyboard are composed of two gif files. When only one of them is touched, a signal requesting space or return is input to the smartphone.

Therefore, in the keyboard region 130 according to the present invention, the conductive portion is divided into two portions corresponding to the conventional space unit keyboard and the return unit keyboard.

As described above, according to the protective film which can be touch-inputted by the nonconductive object according to the present invention, the area of each conductive portion (11) of the keyboard region (130) of the first conductive layer It is necessary to configure the area of each alphabet button 133 to be larger than the area of each alphabet button 133 to constitute the touch input to operate properly without malfunction.

For example, the area of the cell of the conductive part 11 corresponding to the button 133 of the alphabet y is configured to be larger than the area of the gif file of the y button 133.

7 is a plan view showing a patterned structure of a second conductive layer in a protective film for a smart device capable of touch input with a nonconductive object according to the present invention. 8 is an enlarged view showing an enlarged view of a part of the second conductive layer shown in Fig.

The second conductive layer 20 of the present invention has a plurality of laterally extending straight lines extending below the second reinforcing layer 28 with a narrower interval than the longitudinal length of each conductive portion 11 of the first conductive layer 10 So that the conductive portion 21 is patterned.

The second conductive layer 20 according to the present invention is formed by laminating a conductive portion 21 having a line shape and a conductive portion 21 connected to each other by a straight line, Conductive portion 23 to which no conductive ITO transparent electrode material is applied.

The line-shaped conductive portions 21 of the second conductive layer 20 according to the present invention are formed of an ITO transparent electrode film and electrically connected to each other. Is shorter than the longitudinal length of each conductive portion (11) formed in the first conductive layer (10) of the present invention.

The thickness of the line of each conductive portion 21 in the line-shaped conductive portion 21 in contact with the first conductive portion 10 in the second conductive layer 20 of the present invention is set to be 1 mm or less do.

If the user of the present invention does not press the second reinforcing layer 28 with a nonconductive object then the conductive portion 21 of the second conductive layer 20 with a very thin line thickness will contact the conductive portion 11 of the first conductive layer 10, The contact area can be quickly released.

If the line width of the line-shaped conductive portion 21 of the second conductive layer 20 according to the present invention is wide, the user of the present invention may stop pressing the second reinforcing layer 28 by using a non- The time for which the second conductive layer 20 of the present invention is electrically disconnected from the first conductive layer 10 of the present invention in a short period of time A problem of delay may occur.

The outer conductive part 121 is formed on the right and left outer sides of the second conductive layer 20 according to the present invention and all the linear conductive parts 21 are electrically connected to the outer conductive part 121 .

The upper and lower portions of the second conductive layer 20 according to the present invention are configured to include a large area upper and lower conductive portions 123 and 125 that are not patterned to include the nonconductive portion 23. This is because in order to transmit a sufficient electrical signal to the first conductive layer 10, the ITO conductive material is widely deposited or printed so that a large area And should be electrically connected to the upper and lower conductive parts 123 and 125. [

If the second conductive layer 20 is composed only of the conductive parts 21 composed only of wires, the second conductive layer 20 is pressed down because the amount of the ITO conductive material of the second conductive layer 20 is small, There is a problem in that a proper touch signal can not be transmitted when the conductive layer 10 is brought into contact with the conductive layer 10.

The upper and lower conductive parts 123 and 125 according to the present invention can be formed with a thick conductive material by deposition and printing of the ITO material.

The conductive layers 10 and 20 according to the present invention are formed of a thin ITO conductive film and can be patterned by ITO, vapor deposition, metal printing, UV molding, or the like.

The patterning process for the conductive film as the conductive layers 10 and 20 used in the present invention may be applied to a material having a property of purchasing or scratch resistance (material having similarity with PET, PC, etc.) and a glass panel (ITO, vapor deposition, metal printing, molding), and patterns such as the first conductive portion 11 and the second conductive portion 21 are formed on the conductive film by coating, printing, and coating.

The pattern formation by the conductive portions 11 and 21 and the nonconductive portions 13 and 23 with respect to the conductive layers 10 and 20 according to the present invention can be carried out by using all currently known working methods such as laser etching, .

9 is a plan view showing a structure of a frame adhesive layer for attaching the rims of the first conductive layer and the second conductive layer to each other in a protective film for a smart device capable of touch input with a nonconductive object according to the present invention. 10 is an exemplary view for explaining the necessity of opening of the border adhesive layer in Fig.

9 and 10, the edge bonding layer 30 is provided along the inner periphery of each of the first conductive layer 10 and the second conductive layer 20 facing each other according to the present invention, The first conductive layer 10 and the second conductive layer 20 are adhered to each other by the edge bonding layer 30.

The user according to the present invention presses the second reinforcing layer 28 using a nonconductive object such as a ballpoint pen to press the protruding linear conductive portions 21 of the second conductive layer 20 electrically connected to the first conductive layer (10).

The openings 34 opened in the upper and lower portions of the edge adhesive layer 30 according to the present invention are formed so that air can be easily introduced into the air layer 25 between the first conductive layer 10 and the second conductive layer 20 . 10, the second conductive layer 10 is easily pressed to the first conductive layer 10 even in the region close to the edge adhesive layer 30, and the air that has fallen outside the air layer 25 Is easily re-introduced through the vertical part (34).

11 is a plan view of a protective film for a smart device capable of touch input with a nonconductive object according to the present invention, in which a portion where a touch signal is hardly inputted due to a border adhesive layer is formed in the first conductive layer as an idle region. 12 is an explanatory view for explaining that a conductive material is inadvertently deposited along the outer edge of the first reinforcing layer on which the first conductive layer deposited in the actual production process is deposited.

Referring to FIG. 11, an outer region of the first conductive layer 10 of the present invention forms an idle region 117 having a smaller conductive area than the conductive regions 11.

Even when the second conductive layer 20 touches the idle region 117 formed on the rim of the first conductive layer 10 of the present invention, an electrical signal is transmitted to the display portion 118 of the smart device 110 . This is because the area of each idle region 117 is narrow, so that sufficient electrical flux can not be stored and the touch input signal can not be transmitted to the display unit 118.

The reason for configuring the idle region 117 according to the present invention is that the product of the first reinforcing layer 18 on which the first conductive layer 10 fabricated in the actual production process is deposited, The ITO conductive material is deposited unintentionally along the outer edge of the first conductive layer 10 to form the electrically conductive portion 11 so that the first conductive layer 11 constituting the idle region 117 forms the first conductive So that the cells of the conductive portion 10 having the shape of a rectangle or a square inside the layer 10 are each electrically opened.

The manufacturing process of the first conductive layer 10 according to the present invention will be described in detail. It is extremely difficult to manufacture only the first conductive layer 10 separately. Actually, the first conductive layer 10 is made of glass or PET film having a minute thickness The first reinforcing layer 18 with the first conductive layer 10 deposited thereon is produced by cutting the shape of the protective film with the first reinforcing layer 18 and depositing ITO material thereon.

A conductive ITO material is unintentionally deposited on the side surface of the outer edge of the first conductive layer 10 in the process of depositing the conductive ITO material. As a result, the outer edge portion of the first conductive layer 10 Is electrically short-circuited.

Therefore, the idle region 117 according to the present invention can be manufactured so that the cells of the conductive portion 10 having a rectangular or square shape inside the first conductive layer 10 close to the idle region 117 are electrically opened To be.

If the idle region 117 according to the present invention is not formed, the conductive portion 11 adjacent to the outer edge portion of the first conductive layer 10 is electrically short-circuited unintentionally, There is a tendency that a problem of not being transmitted.

13 is a plan view showing a patterned structure of another embodiment of a second conductive layer in a protective film for a smart device capable of touch input with a nonconductive object according to the present invention shown in FIG.

Referring to FIG. 13, this is another embodiment in which the conductive portion 21 of the second conductive layer 20 is formed in the longitudinal direction.

FIG. 14 is a diagram comparing the actually pressed shape when the second conductive layer shown in FIG. 7 is pressed with a nonconductive object to an ideal pressed shape.

Referring to FIG. 14, when the user presses the second conductive layer 20 using a nonconductive object such as a ballpoint pen, the conductive layer 20 is not depressed only at a specific point of the second conductive layer 20, Actually, the second conductive layer 20 has a curved shape and a large area is pressed as shown in (a).

In the case where the conductive part 21 of the second conductive layer 20 according to the present invention is formed only in the longitudinal or transverse direction, when the protective film according to the present invention is pressed, Can be transmitted by the touch panel.

The protective film 100 for a smart device capable of touch input with a nonconductive object according to the present invention can be applied to a portable communication device 100 even when the user uses a non-conductive capacitive touch input and operation using a non-conductive tip such as a gloved hand or a ball- So that information can be input or manipulated to a display unit constituted by a touch screen of the touch screen.

The protective film according to the present invention can be used as a separate accessory product so as to be closely attached to the display unit 118 of the smart device 110 on which a touch panel such as a smart phone is installed, In manufacturing the panel, the smartphone can be manufactured by being mounted on the touch panel of the display panel.

In addition, the present invention can be installed in a refrigerator, a rice cooker, a TV, a monitor, a stuff Internet device, etc., in which a touch panel is installed in addition to a smart phone.

In addition, the protective film for a smart device capable of touch input with a nonconductive object according to the present invention can be used as a cover for opening and closing a mobile phone case used for protecting a smart device 110 such as a smart phone.

In addition, the present invention is an accessory for a capacitive touch screen having an electromagnetic wave shielding effect and enhanced to touch even a minute object, and it is effectively (30%) reduced in electromagnetic waves of a mobile device when the touch screen is provided on a touch screen of a portable device It has effect.

10: first conductive layer 11, 21: conductive part
13, 23: non-conductive portion 18: first reinforcing layer
20: second conductive layer 28: second reinforcing layer
30:
100: protective film
110: smart device 118: display unit

Claims (4)

1. A protective film capable of touch input with a nonconductive object for inputting information by a nonvolatile capacity type touch method to a display panel on which information is inputted by a touch of a capacitive touch type,
A first reinforcing layer;
A first conductive layer coupled to the first reinforcing layer;
A second conductive layer overlying the first conductive layer; And
And a second reinforcing layer coupled to the second conductive layer,
Wherein the opposing inner rim of the first conductive layer and the second conductive layer are bonded by a rim adhesive layer,
Wherein the first conductive layer is formed in a grid pattern in which a rectangle or a square is disposed, and a boundary line of each grid pattern forms a non-conductive portion that can not transmit an electrical signal, Wherein the electrically conductive parts are formed to be electrically connected to each other, and the conductive parts are electrically opened to each other.
The method according to claim 1,
Wherein the second conductive layer forms a line-shaped conductive portion extending laterally with respect to the longitudinal direction, the linear conductive portion is formed of a conductive material, a conductive material is formed in a rim portion of the conductive portion, Wherein the conductive part of the conductive film is electrically connected to the rim area.
3. The method of claim 2,
Wherein a length between each linear conductive portion of the second conductive layer is shorter than a vertical length of each conductive portion of the first conductive layer.
The method according to claim 1,
Wherein the frame adhesive layer is formed with two openings vertically or horizontally.

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