KR20180080742A - LCD protection film for personal portable device having capctitance type touch penal - Google Patents

Abstract

The present invention relates to an insertion-type cell phone case having grounded capacitive and pressure sensing operation functions. In particular, the cell phone case can be used by coupling to a top of an existing grounded capacitance-type liquid crystal panel, wherein when inputting an electric signal to the liquid crystal panel, the signal can be input and effectively applied as an operation signal to the liquid crystal panel throughgrounded capacitance using an electric conductor such as a hand, or through pressure sensing using a non-electric conductor such as a glove. In addition, the cell phone case is configured to be divided into two parts so that a cell phone can be completely inserted therein. In addition, the cell phone case includes an electric circuit pattern formed on a peripheral surface of a touch film region that contacts the top of liquid crystal of the cell phone, wherein the electric circuit pattern is grounded via a conductive edge installed on a side surface of a main body of the cell phone, thereby securing a sufficient space for charge migration and delivering the operation signal perfectly.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an insertion type mobile phone case having a ground type electrostatic capacity type and a reduced pressure type operation function,

The present invention relates to an insertion type mobile phone case having a ground type electrostatic capacity type and a reduced pressure type operation function, and more particularly, to an insertion type mobile phone case having a ground type electrostatic capacity type and a reduced pressure type, A signal is inputted as a conductor such as a conductive type, or a signal is inputted as a non-conductive body such as a glove by a pressure reducing method so as to be effectively applied as an operation signal of a liquid crystal panel. And at the same time, an electric circuit pattern is formed on the edge face of the film region for touching contact with the upper liquid crystal of the mobile phone, and the electric circuit pattern is grounded through a conductive frame provided on the side face of the cellular phone body, By ensuring a sufficient space for the charge to move, The present invention relates to insert-type cell phone case having a ground electrostatic capacitance method and the pressure method, it characterized in that the operation function is configured to be fully delivered.

As is well known, a mobile phone protection case, which is developed for the purpose of protecting an expensive mobile phone or a smart phone from external shocks and scratches, has been developed not only for the above purpose but also for improving the aesthetics or for the convenience of the user come. These developments have been mainly made through improvement of material and design. Now, it is convenient and convenient for users with a beautiful and ergonomic design, and it is possible to use the original functions of the mobile phone by arranging proper holes, and as a solid and durable material, Products have been launched to faithfully implement the purpose of.

Recently, a mobile phone or a smart phone has been introduced with a power supply or a pressure-sensitive touch input method that can transmit a signal only by touching the user, out of an input method of pressing a button. When a touch panel is covered with a conventional mobile phone protection case, Due to technical limitations in which no signal is transmitted, there was an inconvenience to open and close the case cover to use the mobile phone.

Registration Utility Model No. 20-0467637

The present invention is intended to solve the above problems,

And it is an object of the present invention to provide a mobile phone case capable of transmitting an electrical signal to a liquid crystal panel in response to both a conductor and a non-conductor such as a hand or a glove.

Another object of the present invention is to precisely input a signal to a liquid crystal when an input signal is inputted through a film using a conductor or a non-conductor.

As means for achieving the above object,

The present invention relates to a mobile communication terminal comprising a first body and a second body which are formed as a divided pocket and which cover the upper portion of the cellular phone, And a conductive liquid crystal protective film which is attached to an upper portion of the liquid crystal panel of the liquid crystal display panel and is capable of simultaneously performing a correction capacitance method and a pressure reduction method; The conductive liquid crystal protective film may include a PET layer for protecting the film as a whole, a conductor layer disposed under the PET layer for generating static electricity upon contact with the touch panel, and a conductive layer disposed under the conductor layer, And an insulating spacer disposed at a lower portion of the coating layer and guiding the touch panel to return to the original shape after touching the conductive layer; Wherein the conductor layer has a resistance value of 10 ² - 10 ⁵ ohms; And a conductive frame line electrically connected to the conductor layer and formed along a rim of the conductor layer.

In addition, the conductor layer is formed of at least one conductive material selected from the group consisting of copper (Cu), nickel (Ni), gold (Au), silver (Ag) and carbon.

The insulating spacer is further formed with a buffer groove at the center so as to return to the original position after the touch panel is directly brought into contact with the touch panel.

In addition, the insulating spacer is characterized in that a groove is formed at the center and a conductive ball is provided in the central axis region.

In addition, the insulating spacer is characterized in that the convex portion and the concave portion are repeatedly provided with concave and convex portions so as to perform a shirring function.

As described above, the cellular phone case of the present invention has the effect of transmitting an electrical signal to the liquid crystal panel in response to both a conductor and a non-conductor such as a hand or a glove.

1 is a view showing an example in which a smartphone case of the present invention is separated.
Figure 2 is an illustration of an embodiment of a smartphone case incorporating the present invention;
3 is a schematic view of a conductive liquid crystal film of the present invention.
4 is an exploded view of a conductive liquid crystal film of the present invention.
Fig. 5 is a process diagram of the conductive liquid crystal film of the present invention. Fig.
Figure 6 is a first embodiment of the insulating spacer of the present invention.
Fig. 7 is a second embodiment of the insulating spacer of the present invention. Fig.
8 is a third embodiment of the insulating spacer of the present invention.

The operation principle of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings and description. It should be understood, however, that the drawings and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention, and are not to be construed as limiting the present invention.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The terms used below are defined in consideration of the functions of the present invention, which may vary depending on the user, intention or custom of the operator. Therefore, the definition should be based on the contents throughout the present invention.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. The configuration is omitted as much as possible, and a functional configuration that should be additionally provided for the present invention is mainly described.

Those skilled in the art will readily understand the functions of the components that have been used in the prior art among the functional configurations that are not shown in the following description, The relationship between the elements and the components added for the present invention will also be clearly understood.

In order to efficiently explain the essential technical features of the present invention, the following embodiments properly modify the terms so that those skilled in the art can clearly understand the present invention, It is by no means limited.

As a result, the technical idea of the present invention is determined by the claims, and the following embodiments are merely illustrative of the technical idea of the present invention in order to efficiently explain the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs. .

1 is a view showing an example in which a smartphone case of the present invention is separated.

Figure 2 is an illustration of an embodiment of a smartphone case incorporating the present invention;

3 is a schematic view of a conductive liquid crystal film of the present invention.

4 is an exploded view of a conductive liquid crystal film of the present invention.

Fig. 5 is a process diagram of the conductive liquid crystal film of the present invention. Fig.

Figure 6 is a first embodiment of the insulating spacer of the present invention.

Fig. 7 is a second embodiment of the insulating spacer of the present invention. Fig.

8 is a third embodiment of the insulating spacer of the present invention,

The present invention is generally characterized in that the mobile phone is inserted in a divided pocket form and comprises a first body (100) and a second body (200) for covering an upper portion thereof, and the upper portion of the first body (100) And a conductive liquid crystal protective film 20 attached to an upper part of the liquid crystal panel of the electrostatic capacity type so as to be able to apply a signal and capable of simultaneously performing a correction capacitance method and a reduced pressure method.

That is, the cell phone case of the present invention is formed in a rectangular parallelepiped shape as a whole, and the cellular phone is completely inserted into the cell phone case by inserting the cell phone through one body and covering with the other body.

That is, the cellular phone case of the present invention is formed in a pocket shape, and the cellular phone 10 is inserted through a groove formed in the body, and the cellular phone is completely inserted and installed by covering with the other body in the form of a lid.

At this time, the conductive liquid crystal protective film 20 is applied to the liquid crystal contact surface of the mobile phone case, and the touch signal can be directly applied to the liquid crystal through the conductive liquid crystal protective film. At this time, the conductive liquid crystal protective film can be operated both in the capacitive type and in the reduced pressure type.

The conductive liquid crystal protective film 20 basically includes a PET film layer 20a, a conductor layer 20b disposed under the PET film layer, a coating layer 20c disposed under the conductor layer, And an edge line layer 21 disposed on the edge, and the edge line layer is further provided with a double adhesive tape 20d.

In addition, a conductive frame line may be formed on the conductive liquid crystal protective film 20 to further improve the capacitance change sensing characteristic of the conductive liquid crystal protective film. For example, the conductive rim line 21 may be formed along the rim of the film member so as to be electrically connected to the conductor layer. The conductive rim line may be formed of a material such as carbon or metal, and may be formed of other conductive materials depending on required conditions.

The conductive frame line 21 can lower the resistance of a conductor layer (for example, a conductor layer formed of ITO), thereby further improving the capacitance change sensing characteristic of the conductive liquid crystal protective film.

In addition, when the conductive liquid crystal protective film 20 is used for repeated long-term touch operations, electric charge may accumulate at specific positions of the conductive liquid crystal protective film 20, 21 allow charge to be scattered outward without being gathered at a specific position, thereby making it possible to prevent a decrease in efficiency due to the accumulation of charges at a specific position. Moreover, the conductive frame line 21 performs a kind of grounding function, so that the charge can be discharged to the outside without being collected at a specific position. That is, the conductive frame line 21 electrically connected to the conductor layer may be in contact with or connected to a conductive outer plating layer (for example, a chromium plating layer) formed on the terminal. In this case, the electric charge on the conductive liquid crystal protective film is electrically connected to the conductive frame 21 ). ≪ / RTI >

When the conductive layer is brought into contact with the capacitive touch screen panel, static electricity is generated at a point of contact with the touch screen panel.

Accordingly, the conductor layer is formed of a metal material having a dielectric constant value such that a capacitance point of the capacitive touch screen panel is changed at a point of contact, so that the point can be detected as an input signal.

For example, at least one conductive material selected from the group consisting of copper (Cu), nickel (Ni), gold (Au), and carbon may be used as an optimum material for forming the conductor layer. In order to add sterilizability and conductivity to the surface of the conductive material, an electroless plating layer using silver (Ag) may be further formed.

The conductor layer is formed to a thickness of several micrometers on one side of the thin film member through a vapor deposition process such as chemical vapor deposition (CVD) or physical vapor deposition (PVD) Flexibility can be maintained.

First of all, the present invention is to measure the output impedance of a liquid crystal panel of a device such as a smart phone or a navigation device, and to find and produce a film having an optimum impedance of impedance suitable for the output impedance.

The description of the impedance will be described below.

The audio devices have an impedance value for each device to be set, and an optimum balance can be made by matching the impedance values. Therefore, it is necessary to understand the characteristics of each device to be set and to perform impedance matching. If the impedance matching is not good, audio often affects amplification and distortion (distortion), and thus, it is often not reproduced correctly. The ideal impedance matching is to have the input impedance as high as possible and the output impedance as the lowest impedance resistance value.

For amplifier refillers and speakers, the most important combination is impedance matching. Amplifier and Speaker Specs must be marked with the impedance. In the case of Amplifier, check the output impedance, and in case of Speaker, check the input impedance and select the same impedance matching product. If the impedance of the amplifier is 8 ohms and the impedance of the speaker is 4 ohms, the allowable input of the speaker doubles, which may cause distortion in the actual sound or damage the speaker.

For preamplifiers and power amplifiers, you should check the output impedance of the preamplifier and the input impedance of the power amplifier. Typical preamplifier output impedance is 47 ohms (100 ohms when balanced), and the allowable input impedance of the power amplifier is designed to be 10,000 to 22,000 ohms (44,000 to 50,000 ohms when balanced). That is, the input impedance should be larger and more marginable than the output impedance.

Also, the importance of impedance matching is equally true for headphones and microphones, so for headphone amplifiers, products with the widest permissible impedance are preferred. In addition, each matching device, such as a tube amp and a phono amplifier, has its own impedance.

The present invention applies such an impedance to a smartphone and a smartphone liquid crystal protective film rather than a combination of an amplifier and a speaker. In contrast to a smartphone output impedance of 100 ohms, the input impedance of a smartphone liquid crystal protective film is 10 ² - It is a top priority of the present invention to measure the intrinsic output impedance of each smartphone 10 at a magnitude of 10 ⁵ ohms to optimize the input impedance of the conductive liquid crystal protective film 20 corresponding thereto.

Considering the matching of the input impedance of the conductive liquid crystal protective film 20 with the output impedance of the liquid crystal panel 11, the conventional capacitive touch screen is not limited to the electrostatic touch, and when the electrostatic touch is not possible, It is a mixed structure of two methods which can touch not only the multi-touch which is the maximum advantage of the conventional electrostatic method but also the maximum advantage of the reduced pressure method, which is a non-conductive touch.

In other words, the film of the present invention composed of one conductive liquid crystal protective film 20 stimulates the output impedance of the smartphone at the moment when touching the liquid crystal protective film with a hand or other non-conductive material, and transmits the electric signal to the smart phone main body It is a combination of electrostatic method, pressure reducing method and impedance method (force touch).

Film made with the touch implementation according to the invention are conventional silver nano wire, carbon nano-tubes, methyl mesh, child thio (ITO), etc. The surface resistance is very low film of (10 to 10 ² ohms) and antistatic (10 ⁵ - 10, ¹¹⁾ a surface resistance of a very high non-film therebetween value (such as 10 ^2-employs 10 ⁵⁾ with its features.

In addition, the present invention may include an insulating spacer 22 so that only a desired portion can be accurately touched when the conductive liquid crystal protective film 20 and the liquid crystal panel 11 operate in a depressurizing manner, and the insulating spacer 22, Is formed on the bottom surface of the conductive liquid crystal protective film 20, or is formed in a hemispherical shape or in the form of a polygonal pyramid to be brought into contact with the liquid crystal panel 11.

Accordingly, since the insulating spacer 22 is lifted when the conductive liquid crystal protective film 20 of the present invention is pressed, the conductive liquid crystal protective film 20 switches the liquid crystal panel 11 only at the pressing position, So that an electrical signal can be applied.

On the other hand, when the portion of the insulating spacer 22 is directly touched, an electrical signal may not be transmitted to the smartphone.

Accordingly, even if the insulating spacer 22 is touched by various changes in the structure of the insulating spacer 22, the insulating spacer 22 is structurally deformed to closely contact the smartphone, so that even if the insulating spacer 22 is touched, So that it can be easily transmitted to the phone.

That is, in the insulating spacer 22 of the present invention, the groove 22a is formed at the center or the groove 22a is formed at the center, and the conductive ball 22b is provided in the central axis region, or the insulating spacer 22 22 are formed with concave and convex portions 22c in which convex portions and concave portions are repeated.

When the recess 22c is formed at the center of the insulating spacer 22 or the recess 22c is formed at the center of the insulating spacer 22 as described above, when the insulating spacer 22 is pressed, the insulating spacer naturally falls, And electrical signals can be naturally transmitted to the smartphone body.

That is, as the insulating spacer 22 is pushed, the surface of the smartphone and the pressing portion approach each other, thereby changing the capacitance of the insulating spacer portion, thereby allowing the electric signal to be more easily transmitted to the smartphone body.

In addition, when the conductive balls 22b are formed in the central axis region while forming the grooves 22a in the center of the insulating spacer, the conductive balls are electrically connected to the surface of the smartphone while the insulating spacer is pressed, The electrical signal to the phone can be transmitted more easily.

10: Smartphone
11: liquid crystal panel
20: Conductive liquid crystal protective film
21: Conductive border line
22: Spacer

Claims (5)

The first body and the second body are configured to have a cell phone as a whole and to cover an upper portion of the cellular phone. The upper portion of the first body is connected to a liquid crystal panel And a conductive liquid crystal protective film which is attached to the upper part and is capable of simultaneously performing a correcting capacity method and a pressure reducing method;
The conductive liquid crystal protective film may include a PET layer for protecting the film as a whole, a conductor layer disposed under the PET layer for generating static electricity upon contact with the touch panel, and a conductive layer disposed under the conductor layer, And an insulating spacer disposed at a lower portion of the coating layer and guiding the touch panel to return to the original shape after touching the conductive layer;
Wherein the conductor layer has a resistance value of 10 ² - 10 ⁵ ohms;
And a conductive rim line electrically connected to the conductor layer and formed along a rim of the conductor layer, wherein the conductive rim line is electrically connected to the conductor layer. The method according to claim 1,
Wherein the conductor layer is formed of at least one conductive material selected from the group consisting of copper (Cu), nickel (Ni), gold (Au), silver (Ag), and carbon. Insertion type cellular phone case having a function and a decompression type operation function. The method according to claim 1,
Wherein the insulative spacer is further formed with a buffer groove at the center so that the insulative spacer approaches the touch panel at the time of direct touch and returns to the original state. The method according to claim 1,
Wherein the insulating spacer is formed with a groove at the center thereof and a conductive ball is provided in a central axis region, wherein the insulating spacer has a ground-type capacitance type and a depressurization type operation function. The method according to claim 1,
Wherein the insulative spacer is further formed with concave and convex portions in which convex portions and concave portions are repeated so as to perform a function of elasticity, wherein the insulative spacer has a ground type capacitance type and a reduced pressure type operation function.

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