WO2021022483A1

WO2021022483A1 - Functional film and touch-screen mobile device protective film

Info

Publication number: WO2021022483A1
Application number: PCT/CN2019/099464
Authority: WO
Inventors: 韦宝昭; 王浩亮
Original assignee: 韦宝昭; 王浩亮
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2021-02-11

Abstract

A functional film (1) and a touch-screen mobile device protective film. The functional film (1) comprises a substrate (10), a nano-conductive layer (20) formed on a first surface of the substrate (10) by means of printing, and a touch-sensitive layer (30) connected to at least one side of the substrate (10) by means of printing; the nano-conductive layer (20) comprises at least one nano-conductive portion (21) arranged corresponding to the position where a functional icon on a display screen of a touch-screen mobile device is located; the touch-sensitive layer (30) comprises at least one touch-sensitive portion (31) and a conductive wire (32) connected to the touch-sensitive portion (31), the touch-sensitive portion (31) being conductively connected to the nano-conductive portion (21) by means of the conductive wire (32). The nano-conductive portion (21) and the touch-sensitive layer (30) which are conductively connected are formed by printing on the substrate (10), so that the functional film (1) has an external touch function; and when a user uses a touch-screen mobile device, the corresponding functions of various app icons and functional keys on a display screen of the touch-screen mobile device can be quickly started by touching the touch-sensitive layer (30) of the functional film (1), thereby improving the usage experience of the user.

Description

Functional film and touch screen mobile device protective film

Technical field

The present invention relates to the technical field of mobile equipment, in particular to a functional film and a protective film for touch screen mobile equipment.

Background technique

At present, the protective film products on mobile devices such as mobile phones, including PET protective film, TPU protective film, tempered glass protective film, carbon fiber tempered glass protective film, and PC+acrylic composite protective film, do not have an external touch function.

When a user needs to operate a mobile device such as a mobile phone with one hand, it is easy for the finger to not touch the location of the icon corresponding to the APP or function key on the screen after holding the phone; or when playing a game, it is difficult to quickly touch the finger after holding the phone The function buttons on the screen reduce the user experience.

technical problem

The technical problem to be solved by the present invention is to provide a functional film with an external touch function and a protective film for a touch screen mobile device using the functional film.

Technical solutions

The technical solution adopted by the present invention to solve its technical problems is to provide a functional film for use in a touch screen mobile device, the functional film including a substrate, and nanometers formed on the first surface of the substrate by printing. A conductive layer and a touch sensing layer connected to at least one side of the substrate by printing;

The nano conductive layer includes at least one nano conductive part set corresponding to the position of the function icon on the display screen of the touch screen mobile device; the touch sensing layer includes at least one touch sensing part and a conductive wire connecting the touch sensing part, The touch sensing part is conductively connected to the nano conductive part through the conductive wire.

Preferably, a display area and an outer frame area located on the periphery of the display area are defined on the substrate;

The conductive wire runs along the side of the outer frame area, the nano conductive portion is located in the display area, and the tail of the nano conductive portion extends to the outer frame area, and the conductive wire connection.

Preferably, the functional film further includes dots printed on the first surface of the substrate, and the dots are located in the display area of the substrate.

Preferably, the diameter of the dots is 0.04mm-0.06mm; the distance between the dots is 1.0mm±0.15mm.

Preferably, the head of the nano conductive part away from the conductive wire is Y-shaped, in-line, E-shaped, U-shaped, C-shaped or radial.

Preferably, the touch sensing layer is formed by printing at least one of conductive silver paste, carbon paste, and conductive ink.

Preferably, the functional membrane further includes an insulating layer, which is located on the first surface of the substrate and covers the conductive wire.

Preferably, the functional film further includes an OCA optical adhesive layer disposed on the second surface of the substrate.

The present invention also provides a protective film for a touch screen mobile device, comprising the functional film described in any one of the above, a protective layer and an adhesive layer respectively stacked on opposite sides of the functional film; the protective layer is located at the On the second surface side of the substrate of the functional film, the adhesive layer is located on the first surface side of the substrate.

Preferably, the adhesive layer is AB adhesive or double-sided adhesive.

Beneficial effect

The functional film of the present invention is used for touch screen mobile devices. It forms conductively connected nano conductive parts and touch sensing layers on a substrate, so that the film has an external touch function. When the user uses the touch screen mobile device , By touching the touch-sensitive layer of the functional diaphragm, you can quickly turn on various App icons and the corresponding functions of the function buttons on the display of the touch screen mobile device, so as to improve the user experience.

Description of the drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments. In the accompanying drawings:

Fig. 1 is a schematic structural diagram of a functional diaphragm according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the structure of the touch sensing layer 30 in FIG. 1;

3 is a schematic diagram of the structure of the insulating tape of the insulating layer in FIG. 1;

4 is a schematic diagram of a cross-sectional structure of a protective film for a touch screen mobile device according to an embodiment of the present invention.

Embodiments of the invention

In order to have a clearer understanding of the technical features, objectives and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the functional film 1 of an embodiment of the present invention is used in a touch screen mobile device. The functional film 1 may include a substrate 10 and a nano conductive layer 20 formed on the substrate 10 by printing. And the touch sensing layer 30 connected to at least one side of the substrate 10 by printing.

The nano-conductive layer 20 includes at least one nano-conductive portion 21 arranged corresponding to the position of the function icon on the display screen of the touch screen mobile device. The touch sensing layer 30 includes at least one touch sensing portion 31 and a conductive wire 32 connected to the touch sensing portion 31. The touch sensing portion 31 is electrically connected to the nano conductive portion 21 through the conductive wire 32, thereby forming an open circuit (non-closed circuit), Realize the external touch function.

Among them, the base material 10 is made of insulating transparent material, which can be tempered glass, PE, PET, PVC, etc. The substrate 10 includes a first surface and a second surface opposite to each other, and the nano conductive layer 20 is disposed on the first surface of the substrate 10. On the touch screen mobile device, the substrate 10 faces the touch screen mobile device with its first side, so that the nano conductive layer 20 will contact the touch screen of the touch screen mobile device.

Further, a display area 11 and an outer frame area 12 located on the periphery of the display area 11 are defined on the substrate 10. The size parameters such as the size of the display area 11 and the outer frame area 12 can be specifically set according to the touch screen mobile device. The outer frame area 12 can also be provided with through holes corresponding to structures such as sound holes and cameras above the display screen of the touch screen mobile device.

On the substrate 10, the nano conductive layer 20 is located in the display area 11 of the substrate 10. The nano conductive layer 20 can be formed by printing nano conductive materials such as nano silver paste, nano ink, etc., and can be transparent, translucent or opaque.

According to the needs of use, the nano conductive layer 20 may include one or more nano conductive parts 21; when a plurality of nano conductive parts 21 are included, the nano conductive parts 21 are spaced apart and insulated and not connected.

A nano conductive portion 21 can be connected to a touch sensing portion 31 via a conductive wire 32, and the touch sensing portion 31 is located on the side of the substrate 10 and extends outward relative to the substrate 10.

The nano-conductive portion 21 is connected to the conductive wire 32 at its tail. The head of the nano-conductive portion 21 away from the conductive wire 32 may have any shape, for example, a Y-shape, a straight shape, an E-shape, a U-shape, a C-shape or a radial shape.

The touch sensing layer 30 is located on at least one side of the substrate 10 and can be formed by printing at least one of conductive silver paste, carbon paste, and conductive ink. For the plurality of nano conductive parts 21, the touch sensing layer 30 correspondingly includes a plurality of touch sensing parts 31, which are connected to the nano conductive parts 21 through conductive wires 32 one by one. The multiple touch sensing parts 31 may be arranged on the same side or different sides of the substrate 10.

The touch sensing portion 31 protrudes on the side of the substrate 10 and can be used as a handle for the user to touch or touch, and the corresponding icon on the touch screen mobile device can be opened through the nano conductive portion 21 connected to it. The touch sensing part 31 can be configured in various shapes, such as a circle, an ellipse, a polygon, a star, and so on. The length and width of the touch sensing portion 31 protruding from the side of the substrate 10 can also be set according to the length of the user's finger, so that the user can obtain a better experience of use.

Preferably, the conductive wires 32 are routed along the sides of the outer frame area 12 of the substrate 10 to avoid interference between the function icons arranged in the display area 11 and the touch screen mobile device, which affects normal use. The tail of the nano conductive part 21 extends to the area of the outer frame 12 and is connected to the conductive wire 32.

It is understandable that the conductive wire 32 is not limited to the side routing, as long as it does not affect the original functional circuit of the touch screen on the touch screen mobile device, it can also be arranged in the display area 11.

Further, the functional film 1 of the present invention may also include dots (not shown) printed on the first surface of the substrate 10. The dots are located in the display area 11 of the substrate 10 for attaching the functional film When attached to the display of a touch screen mobile device, interference fringes (rainbow patterns) are eliminated.

The dots can be formed on the second surface of the substrate 10 by printing, and can be printed on the substrate 10 simultaneously with the nano conductive layer 20. A plurality of dots can be arranged in an array in the display area 11.

Alternatively, the diameter of each dot is 0.04mm-0.06mm; the dot pitch is 1.0mm±0.15mm. Of course, the dot diameter and screen distance can be flexibly set according to needs, and are not limited to 0.04mm-0.06mm and 1.0mm±0.15mm.

Further, as shown in FIGS. 1 and 3, the functional film 1 of the present invention may further include an insulating layer 40, which is located on the first surface of the base material 10 and covers the conductive wires 32 to play a role of isolation. Such as isolating the conductive wire 32 and the touch screen of a touch screen mobile device or other conductive devices. The insulating layer 40 may be formed of insulating ink or other insulating materials.

Corresponding to the conductive wire 32, the insulating layer 40 may include at least a strip of insulating tape 41, and a conductive wire 32 is covered with an insulating tape 41.

In this embodiment, as shown in FIGS. 1 and 3, the insulating tape 41 is arranged corresponding to the routing of the conductive wire 32 on the outer frame 12 of the substrate 10 and covers the conductive wire 32 along the extending direction thereof.

When the functional film 1 of the present invention is used in a touch screen mobile device, it can be directly adhered to the touch screen mobile device as a film body; correspondingly, the first side of the substrate 10 is also provided with an adhesive layer (such as AB glue or double-sided Glue, etc.) to realize the adhesion of the functional film 1 on the touch screen mobile device. Alternatively, the functional film 1 may also include an OCA optical adhesive layer (not shown), which is arranged on the second surface of the substrate 10 for a protective layer to adhere to it to form a touch-sensitive protection for touch screen mobile devices membrane.

1 and 4, a protective film for a touch screen mobile device according to an embodiment of the present invention includes the above-mentioned functional film 1, a protective layer 2 and an adhesive layer 3 respectively stacked on opposite sides of the functional film 1. The protective layer 2 is located on the second side of the base 10 of the functional film 1, and the adhesive layer 3 is located on the first side of the base 10.

Wherein, the protective layer 2 may be a transparent sheet or a transparent film made of various materials such as tempered glass, PE, PET, PVC, PC, etc., to play a protective role.

The adhesive layer 3 is used to adhere the protective film to the touch screen mobile device, and it can be AB glue, double-sided adhesive or any other adhesive material that can realize the adhesion of the protective film on the touch screen mobile device. The adhesive layer 3 may be disposed on the entire first surface of the substrate 10 or may be a frame-shaped adhesive layer corresponding to the outer frame area 12 of the substrate 10.

When the functional film 1 or the protective film of the touch screen mobile device of the present invention is used on a touch screen mobile device (such as a mobile phone, Ipad, etc.), the touch sensing part 31 of the functional film 1 is installed on the side of the touch screen mobile device, and the nano-conductive The part 21 corresponds to the touch screen (also the display screen) of the touch screen mobile device and corresponds to the effective area of the App icon or the function button icon of the touch screen. When you need to open an App or function button on the touch screen, you can open the App or function button by touching the touch sensing part 31 connected to the nano conductive part 21 at the corresponding position, which is convenient to use, especially for the user to operate a mobile phone or play a game with one hand Time, improve user experience.

The above are only the embodiments of the present invention, and do not limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the description and drawings of the present invention, or directly or indirectly applied to other related technologies In the same way, all fields are included in the scope of patent protection of the present invention.

Claims

A functional film for a touch screen mobile device, characterized in that the functional film includes a substrate, a nano conductive layer formed on the first surface of the substrate by printing, and a printed connection on the substrate. Touch sensing layer on at least one side of the material;

The nano conductive layer includes at least one nano conductive part set corresponding to the position of the function icon on the display screen of the touch screen mobile device; the touch sensing layer includes at least one touch sensing part and a conductive wire connecting the touch sensing part, The touch sensing part is conductively connected to the nano conductive part through the conductive wire.
The functional film according to claim 1, wherein the base material defines a display area and an outer frame area located on the periphery of the display area;

The conductive wire runs along the side of the outer frame area, the nano conductive portion is located in the display area, and the tail of the nano conductive portion extends to the outer frame area, and the conductive wire connection.
3. The functional film according to claim 2, wherein the functional film further comprises dots printed on the first surface of the substrate, and the dots are located in the display area of the substrate.
The functional membrane according to claim 3, wherein the diameter of the dots is 0.04mm-0.06mm; and the distance between the dots is 1.0mm±0.15mm.
The functional film according to claim 2, wherein the head of the nano conductive part away from the conductive wire is Y-shaped, in-line, E-shaped, U-shaped, C-shaped or radial-shaped.
The functional film according to claim 1, wherein the touch sensing layer is formed by printing at least one of conductive silver paste, carbon paste, and conductive ink.
The functional film according to any one of claims 1-6, wherein the functional film further comprises an insulating layer, and the insulating layer is located on the first surface of the substrate and covers the conductive wire on.
The functional film according to any one of claims 1 to 6, wherein the functional film further comprises an OCA optical adhesive layer disposed on the second surface of the substrate.
A protective film for a touch screen mobile device, which is characterized by comprising the functional film according to any one of claims 1-8, a protective layer and an adhesive layer respectively stacked on opposite sides of the functional film; The protective layer is located on the second surface side of the base material of the functional film, and the adhesive layer is located on the first surface side of the base material.
The protective film for mobile devices according to claim 9, wherein the adhesive layer is AB glue or double-sided glue.