KR20150117566A - Capacitive Touch Module - Google Patents

Abstract

The present invention relates to a capacitive touch module. The capacitive touch module according to the present invention comprises: a plurality of touch units having a capacitively touched contact surface on a capacitive touch screen wherein the touch units are made of rubber materials; and a frame unit with a conductive area for geometrically arranging the touch units on one area and transferring capacitance of a human body to the touch units wherein the conductive area is located on at least one side of the frame unit. The capacitive touch module touches the capacitance touch screen. The number of the touch units is at least four. Electrical resistance of the touch units is manufactured by making the measured resistance value between the contact surface of a portion of the touch units and the contact surface of the conductive area of the frame unit 120 ohm or lower.

Description

Capacitive Touch Module

The present invention relates to a touch module in which a plurality of touch parts made of a conductive rubber material are arranged in a predetermined area in a predetermined geometrical relationship and touches the capacitive touch screen, (The probability of recognizing all of the plurality of touch points touched on the screen) and the authentication rate (= the geometric relationship of the touch points touched with the electrostatic touch screen and the stored geometric relationship are matched to the probability of authentication success).

A service for touching an electrostatic touch screen with a touch module in which a plurality of touch parts made of a conductive rubber material are arranged in a predefined geometric relationship is used as identification means and / or authentication means for providing various services.

Conventional capacitive touch screens are designed to use electrostatic touches by the user's fingers as input means and are also optimized to do so. When the finger is directly touched to the electrostatic touch screen, the electric charge stored in the human body including the finger is directly transmitted to the electrostatic touch screen, and the central point of the finger touch surface is recognized as the touch point . On the other hand, instead of a finger, a tool such as a touch pen may be used as an input means for touching the electrostatic touch screen to replace a finger.

In the case of the conventional touch pen, a conductive rubber or a conductive plastic is used for a part contacting with the electrostatic touch screen, which is designed to input an electrostatic touch screen and a single touch point. Hereinafter, the conductive rubber or conductive plastic used for the electrostatic touch is collectively referred to as 'conductive rubber'.

In general, rubber is a nonconductive material, which has a very high electrical resistance, which interferes with the flow of electric charges and accumulates electric charges to generate static electricity, thereby causing sparks. Conductive rubber is mainly used as an antistatic agent to prevent static electricity from being generated in a field where rubber should be used. Conductive rubber is used as a substitute for human's fingers in electrostatic touch screen and touch portion in conventional touch pens.

The conductive rubber is produced by blending conductive carbon or metal powder with rubber powder, and at least one of a reinforcing agent, a filler, a plasticizer, an accelerator, a vulcanizing agent, a flame retardant, an antioxidant and a compounding oil is selectively added And the like. Hereinafter, the conductive carbon or metal powder used for producing the conductive rubber is collectively referred to as 'conductive carbon' for convenience, and the state in which the predetermined additive is added to the rubber component is referred to as 'rubber' for convenience.

According to Korean Standard (KS), rubber material with electrical resistance less than 3x10 ^ 8Ω is defined as conductive rubber (KS M ISO 2878: 2012). On the other hand, the conductive rubber used as an antistatic agent is used to prevent the charge accumulation rather than the charge flow, and therefore, the electrical resistance is generally more than 10 6 ?. On the other hand, conductive rubber used in conventional touch pens is used for electric charge flow for electrostatic touch, but has a high rubber compound ratio for soft writing feeling and touch feeling, and thus has electric resistance of more than 1,000? There is also a product with electrical resistance, far above 500 Ω at all. However, in the case of the conventional touch pen, since it is used for touch recognition of a touch point of one point, it does not matter even if the resistance of the conductive rubber is high. In addition, in the case of the conductive rubber used in the conventional touch pen, in addition to a soft handwriting feeling and a touch feeling, a hardness of 30 to 40 on the Shore A hardness scale is manufactured in order to maximize the touch area due to the pressure generated at the touch point.

Meanwhile, the touch module of the present invention is formed by arranging a plurality of touch parts made of a conductive rubber material in a pre-designed geometrical relationship. In addition to the touch recognition of all the capacitive touches on a plurality of touch parts, (Or proximity) within the allowable error (or proximity) of the geometric relationship between the design geometry of the touch portion of the touch portion of the touch pad and the plurality of touch points touched on the actual capacitive touch screen, Therefore, when the touch module of the present invention is manufactured, it is technically difficult to use it as identification means and / or authentication means for providing various services.

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the above-mentioned problems, and it is an object of the present invention to provide a touch module in which a plurality of touch parts made of a conductive rubber material are arranged in a predetermined geometrical relationship, (= Probability of recognizing all the touch points touched on the electrostatic touch screen by the touch module) and the authentication rate (= the geometric relationship of the touch points touched on the electrostatic touch screen and the stored geometric relationship, Probability) of the electrostatic touch screen is not limited.

The electrostatic touch module according to the present invention includes a plurality of touch parts made of a conductive rubber material and having a contact surface to be electrostatically touchable on the electrostatic touch screen, And a frame portion having at least one conductive region for disposing the plurality of touch portions in one side region in a specified geometrical relationship and transmitting a capacitance of the human body to the touch portion, wherein the number of the touch portions is four or more, The electrical resistance of the touch portion is made to be 150 ohm or less between the contact portion contacting the conductive region of the frame portion and the contact surface among the portions of the touch portion.

According to the present invention, the electrical resistance of the touch part can be made such that the measurement resistance value between the contact part and the contact surface is 70? Or more.

According to the present invention, the hardness of the touch portion can be made to be 60 (± 5) to 70 (± 5) hardness based on a Shore A hardness scale.

According to the present invention, the contact surface of the touch portion can be formed into a circular contact surface having a diameter of 6 mm (± 0.5 mm) to 7 mm (± 0.5 mm), or an oval or polygonal shape having a contact area corresponding to the circular contact surface have. Alternatively, the contact surface of the touch portion may be formed into a circular contact surface having a diameter of 5 mm (± 0.5 mm) to 7 mm (± 0.5 mm), or an elliptical or polygonal shape having a contact area corresponding to the circular contact surface. Alternatively, the contact surface of the touch portion may be formed into a circular contact surface having a diameter of 4 mm (± 0.5 mm) to 7 mm (± 0.5 mm), or an elliptical or polygonal shape having a contact area corresponding to the circular contact surface. Alternatively, the contact surface of the touch part may be formed into a circular contact surface having a diameter of 3 mm (± 0.5 mm) to 7 mm (± 0.5 mm), or an elliptical or polygonal shape having a contact area corresponding to the circular contact surface. Alternatively, the contact surface of the touch portion may be formed as a rectangular contact surface of 5 * 5 mm (± 0.5 mm) to 6 * 6 mm (± 0.5 mm), or a circular or polygonal shape having a contact area corresponding to the rectangular contact surface . Alternatively, the contact surface of the touch portion may be a square contact surface of 4 * 4 mm (± 0.5 mm) to 6 * 6 mm (± 0.5 mm), or a circular or polygonal shape having a contact area corresponding to the square contact surface . Alternatively, the contact surface of the touch portion may be formed as a rectangular contact surface of 3 * 3 mm (± 0.5 mm) to 6 * 6 mm (± 0.5 mm), or a circular or polygonal shape having a contact area corresponding to the rectangular contact surface .

According to the present invention, the geometric relationship may include a geometric relationship that excludes a linear arrangement structure in which three or more touch portions of the plurality of touch portions are arranged in a line.

According to the present invention, the geometric relationship may include an arbitrary arrangement structure in which three or more touch portions among the plurality of touch portions are not arranged in a line.

According to the present invention, the geometric relationship is obtained by arranging at least one touch portion among a plurality of touch portions disposed at one side region of a frame portion provided in different touch modules of the same type at different positions spaced apart by a minimum identification distance of at least 3.5 mm And a geometric relationship in which the geometric relations of the touch parts provided in different touch modules of the same kind are not overlapped, and the minimum identification distance is a distance between centers of the comparison target touch parts provided in one side area of the frame part provided in another touch module of the same type It can include distance.

According to the present invention, the geometric relationship includes a geometric relationship in which a plurality of touch portions disposed in the frame portion are disposed apart from a minimum distinguishing recognition distance of 7.5 mm, and the minimum distinguishing recognition distance is a touch And the distance between the contact surface outlines of the negative sides.

According to the present invention, the geometric relationship is obtained by dividing one side region of the frame section into less than the number of the number of the touch portions, and placing one touch portion at each calculated position on each of the divided regions, And a geometric relationship in which at least one touch portion is further disposed at a designated position on one designation area.

According to the present invention, when a touch module in which a plurality of touch parts made of a conductive rubber material are arranged in a predefined geometrical relationship is used as an identification means and / or an authentication means for providing various services by touching the capacitive touch screen, (= Probability of recognizing all touch points touched on the electrostatic touch screen) and authentication rate (= probability of authentication succeeding by matching the geometric relationship of the touch points touched with the electrostatic touch screen and the stored geometric relationship) Is maintained at a level higher than the level required in the workplace, while providing a stable service.

1A and 1B illustrate a touch module according to an embodiment of the present invention.
2A to 2H are views illustrating a manufacturing process of a touch module according to an embodiment of the present invention.
3 is a diagram showing a structure of a touch part according to an embodiment of the present invention.
4 is a diagram illustrating a geometric relationship of a touch part provided in a touch module according to an embodiment of the present invention.
5A and 5B illustrate an embodiment using a touch module according to an embodiment 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 other words, the following embodiments correspond to the preferred embodiment of the present invention, which is a preferred embodiment of the present invention. In the following embodiments, specific configurations may be omitted, or functions implemented in specific configurations may be referred to as specific configurations It is to be clearly understood that the embodiments that divide or separate the functions embodied in two or more configurations into one configuration are all within the scope of the present invention unless otherwise mentioned in the following embodiments. Therefore, it should be clearly stated that various embodiments corresponding to subsets or combinations based on the following embodiments can be subdivided based on the filing date of 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.

As a result, the technical idea of the present invention is determined by the claims, and the following embodiments are merely means for effectively explaining the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs Only.

1a and 1b show a touch module 100 according to an embodiment of the present invention.

1A and 1B illustrate a case where a plurality of touch parts 105 made of a conductive rubber material are provided and a frame part 110 in which the plurality of touch parts 105 are arranged in a specified geometrical relationship, The touch module 100 according to an exemplary embodiment of the present invention will now be described with reference to FIGS. 1a and 1b. It is to be understood that the invention is not limited to the disclosed embodiments, but it is to be understood that the invention is not limited to the disclosed embodiments.

1A and 1B, a touch module 100 includes a plurality of touch portions 105 made of a conductive rubber material and having a contact surface 305 to be electrostatically touched to the electrostatic touch screen, And a frame portion 110 having at least one conductive region for arranging the touch portion 105 of the touch portion 105 in a specified geometrical relationship and transmitting the capacitance of the human body to the touch portion 105. Preferably, FIG. 1A shows a touch module 105 in which a plurality of (e.g., five) touch portions 105 made of a conductive rubber material are arranged in any unique geometric relationship (i.e., different geometric relationships for each touch module 100) FIG. 1B is a view showing a configuration in which 12 touch portions 105 are arranged in a geometrical relationship in the form of a lattice structure in which a specified number (for example, 2 to 5) of 12 touch portions 105 of the lattice structure The touch module 100 includes a touch portion 105 made of a conductive rubber material. However, it should be understood that the embodiment of the touch module 100 of the present invention is not limited to the shapes of FIGS. 1a and 1b, but may be modified according to various embodiments of the present invention (for example, An embodiment in which the touch portion 105 is provided in a lattice structure in the form of a prismatic honeycomb, and the like), and the present invention clearly encompasses all embodiments that can be modified as such.

The touch unit 105 is a generic term of the electrostatically touching components of the touch module 100, and is made of a conductive rubber material. The touch unit 105 includes one side area 115 ( For example, a region of the touch module 100 where the touch portion 105 to be touched is exposed to the capacitive touch screen).

The frame unit 110 is a collective term for arranging a plurality of touch units 105 in a specified geometrical relationship among the configurations of the touch module 100 and includes a plurality of touch units 105 made of a conductive rubber material, And at least one conductive region for transmitting the capacitance of the human body to the plurality of touch portions 105 made of the conductive rubber material. One side region 115 of the frame 110 may be formed in a variety of plate structures such as a flat plate structure and / or a curved plate structure.

The touch module 100 connects a handle 500 having a predetermined conductive area to the frame 110 and electrically connects the conductive area of the handle 500 and the conductive area of the frame 110 Or may be mounted on a paint having the handle 500. [0050] Alternatively, the touch module 100 may be mounted on a card-shaped object or in the form of a card by forming the thickness of the frame part 110 and the touch part 105 to be thin. The appearance of the object to which the touch module 100 is attached or the object including the touch module 100 may be variously modified or applied according to the intention of the person skilled in the art or the field of service so that the present invention is not limited thereto I clarify it clearly.

According to the method of the present invention, the touch portion 105 is made of a conductive rubber material made by mixing conductive carbon (for example, conductive carbon or metal powder) and rubber, ), And / or a cutting process.

The conductive rubber is characterized in that the electrical resistance of the touch part 105 is decreased (or the electrical conductivity is increased) and the hardness of the touch part 105 is increased as the compounding ratio of the conductive carbon is increased. The electrical resistance of the touch part 105 increases (or the electrical conductivity decreases) as the compounding ratio of the rubber increases, and at the same time, the hardness of the touch part 105 decreases and softens.

The touch module 100 is manufactured in such a manner that the touch part 105 is protruded at a predetermined height in one side area 115 of the frame part 110. However, (For example, a reference height '0' of one side region 115 of the frame portion 110) when the card 110 is manufactured in the form of a card. If the frame part 110 has a flat structure, the height of the touch part 105 disposed on the frame part 110 may be designed to be the same height as the design for simultaneous touch, The height of each touch part 105 may vary in an allowable error range in the process of manufacturing the actual touch module 100. Even if the height of each touch part 105 are designed to have different heights, the heights of the respective touch parts 105 are naturally different. Also, even if each touch part 105 is designed to have the same height for simultaneous touch and each touch part 105 is manufactured at the same height through various error correction in the manufacturing process, the process of using the touch module 100 The height of each touch part 105 is gradually changed due to wear or aging of the touch part 105. [ The plurality of touch units 105 provided in the touch module 100 of the present invention should be touch-recognized on the capacitive touch screen even if the process error, wear or aging as described above occurs, and the appropriate hardness and electrical characteristics , Electrical resistance or electrical conductivity, etc.) and contact area.

According to the method of the present invention, it is preferable that the hardness of the touch portion 105 made of a conductive rubber material is made to have a hardness of 60 (± 5) to 70 (± 5) on the basis of a Shore A hardness scale, The hardness of the touch portion 105 may be made to be a hardness of 50 to 80 on the Shore A hardness scale in accordance with the contact area where the contact surface 305 of the touch portion 105 contacts the electrostatic touch screen.

When the hardness of the touch part 105 is made to exceed 80 on the basis of the Shore A hardness scale, the mixing ratio of the conductive carbon should be increased in the process of manufacturing the conductive rubber constituting the touch part 105. In this case, The resistance of the rubber decreases and the electrical conductivity increases to improve the electrical characteristics of the touch portion 105. Conversely, it is difficult to realize the touch recognition for all of the plurality of touch portions 105, = Probability of recognizing all of the plurality of touch points touched on the electrostatic touch screen) is greatly increased. Such a sudden decrease of the touch ratio is caused by the fact that the authentication rate of the touch module 100 The probability of authentication success by matching the geometric relationship of the plurality of touch points with the stored geometric relationship). That is, when the hardness of the conductive rubber is made to exceed 80 on the basis of the Shore A hardness scale, even though the conductive rubber is designed to touch all the conductive rubber on the flat electrostatic touch screen during the design process of the touch module 100, Some of the conductive rubber is not touched to the electrostatic touch screen or the designed contact is not touched to the electrostatic touch screen because the designed contact area is all touched to the electrostatic touch screen by the process error occurring in the conductive rubber, The probability that all of the touch areas will not be recognized will increase. If the hardness of the touch part 105 is more than 80, it is necessary to manufacture the touch part 105 in such a way that the touch part 105 can be touched. In this case, The touch rate and the authentication rate of the mobile terminal 100 are continuously decreased. If the hardness of the touch portion 105 is made to exceed 90 on the Shore A hardness scale, the electrical characteristics of the touch portion 105 may be further improved. However, Not only is it easily broken by some impact at the point of touch, but also increases the chance of damaging the surface of the capacitive touch screen during the touch process.

On the other hand, when the hardness of the touch part 105 is made less than 50 on the Shore A hardness scale, the compounding ratio of the rubber should be increased in the process of manufacturing the conductive rubber constituting the touch part 105. In this case, Not only the resistance of the touch module 105 decreases but also the center of the area touched on the electrostatic touch screen moves even if a slight horizontal force is applied in a state that the touch portion 105 is touched to the electrostatic touch screen, (The probability of authentication success by matching the geometric relationship between the plurality of touch points touched on the electrostatic touch screen and the stored geometric relationship) of the touch screen 100 is reduced. That is, the electrostatic touch screen using a human finger as an input means calculates the center of the touched surface to be recognized as a touch point. When the touched area of the capacitive touch screen is transformed, the center of the touched surface is naturally spaced, As a result, the geometric relationship of the plurality of touch points is distorted, and the authentication rate of the touch module 100 is reduced. Conventionally, a conductive rubber can also be used as a touch pen used as an input means of a conventional electrostatic touch screen. In this case, a rubber compounding ratio is increased and a hardness of less than 50 is prepared for soft writing feeling and touch feeling. Of course, the conductive rubber of the touch pen, which provides only one point touch and is used as an input means, is manufactured with a hardness of less than 50, so that it is not a problem to use it as a point input means even if the electrical characteristics are lowered. And can be used as an input means. However, when the touch module 100 is manufactured using the conductive rubber material, even if a plurality of touch parts 105 provided on the touch module 100 are all touched to the capacitive touch screen, It is possible to reduce the touch ratio of the touch module 100 by dispersing the electrostatic change of the electrostatic touch screen compared to the one point touch because the resistance is low. Even if a plurality of touch points are recognized by touch, 100) authentication rate is reduced rapidly. For example, when the hardness of the touch portion 105 is set to a hardness of 60 (± 5) to 70 (± 5) on the basis of the Shore A hardness scale and the contact surface 305 of the touch portion 105 is set to a diameter of 6 mm When the touch module 100 is manufactured with five circular touch surfaces 305 and five touch portions 105 to be touched, the touch rate and the authentication rate of the touch module 100 are both 95% or more of the Gaussian probability distribution However, when the hardness of the touch part 105 is made less than 50 under the same conditions, both the touch rate and the authentication rate of the touch module 100 are reduced to less than 20%, so that the touch module 100 can be effectively identified and / Or can not be used as authentication means.

According to the method of the present invention, the touch rate of the touch module 100 increases as the electrical resistance is lower (for example, the resistance value approaches 0Ω). However, since the conductive rubber constituting the touch part 105 includes a certain proportion of rubber other than the conductive carbon having a high conductivity, it has a certain electrical resistance. According to the present invention, the electrical resistance of the conductive rubber has a correlation with the compounding ratio of the conductive carbon and the rubber constituting the conductive rubber, and the compounding ratio of the conductive carbon and the rubber has a correlation with the hardness of the conductive rubber.

On the other hand, the electrostatic touch screen using a human finger as an input means can recognize the electrostatic touch even if the electrostatic touch screen has a small amount of change in electrostatic capacitance as the touch area becomes wider. This is because the contact surface 305 , The electrostatic touch recognition is possible even if the electrical resistance of the touch portion 105 is small. This means that the smaller the contact surface 305 of the touch part 105 is, the smaller the electrical resistance of the touch part 105 is, the smaller the electric resistance of the touch part 105 is. And also the area of the area 305 is constant.

In the electrostatic touch screen using a human finger as an input means, a circuit for sensing the electrostatic change by the electrostatic touch detects the electrostatic touch using a serial circuit formed with the human body at the time when the electrostatic touch occurs . That is, in the case where the finger touches (touches or is close to) a finger in a state in which a minute current flows (or a high frequency is formed) in a conductive medium (for example, ITO) of a touch panel, And the position is read to recognize the electrostatic touch. At this time, as the number of touch points simultaneously touched to the serial circuit increases, the characteristics of the serial circuit structure The amount of electrostatic change of the touch points increases beyond the range set by the effective electrostatic touch. For example, in the case of some electrostatic touch screens, even if a plurality of touch points are touched, a plurality of touch points can be recognized if each touch point of the touch cell of the electrostatic touch screen is connected to a different cell and a serial circuit. If multiple touch points connect to a serial circuit at the same time in one serial circuit, it can not be recognized at all (for example, if three or more touch points are connected to one serial circuit, all three touch points can not be recognized) have. Therefore, the electrical resistance of the touch part 105 can be recognized by the number of the touch parts 105 that can be provided in the touch module 100, Have a constant correlation. The geometric relationship of the plurality of touch parts 105 provided in the one side area 115 of the frame part 110 is determined by the geometric relationship between at least three of the plurality of touch parts 105 The geometric relationship may include at least three touch portions 105 among the plurality of touch portions 105, as shown in FIG. 1A, But may include any arrangement structure that is not arranged in a line.

A preferred embodiment of the contact surface 305 of the touch portion 105 according to the present invention is as follows.

According to the first contact surface 305 embodiment of the present invention, the contact surface 305 of the touch portion 105 is a circular contact surface 305 having a diameter of 6 mm (± 0.5 mm) to 7 mm (± 0.5 mm) It is preferable to make an elliptical or polygonal shape having a contact area corresponding to the circular contact surface 305. [

According to the second contact surface 305 embodiment of the present invention, the contact surface 305 of the touch portion 105 is a circular contact surface 305 having a diameter of 5 mm (± 0.5 mm) to 7 mm (± 0.5 mm) It is preferable to make an elliptical or polygonal shape having a contact area corresponding to the circular contact surface 305. [

According to the third contact surface 305 of the present invention, the contact surface 305 of the touch portion 105 is a circular contact surface 305 having a diameter of 4 mm (± 0.5 mm) to 7 mm (± 0.5 mm) It is preferable to make an elliptical or polygonal shape having a contact area corresponding to the circular contact surface 305. [

According to the fourth contact surface 305 of the present invention, the contact surface 305 of the touch portion 105 has a circular contact surface 305 having a diameter of 3 mm (± 0.5 mm) to 7 mm (± 0.5 mm) It is preferable to make an elliptical or polygonal shape having a contact area corresponding to the circular contact surface 305. [

According to the fifth contact surface 305 of the present invention, the contact surface 305 of the touch portion 105 has a square contact surface 305 (5 mm × 5 mm × 5 mm × 5 mm × 0.5 mm) Or a circular or polygonal shape having a contact area corresponding to the square contact surface 305. [

According to the sixth contact surface 305 of the present invention, the contact surface 305 of the touch portion 105 has a square contact surface 305 (4 mm) of 4 * 4 mm (± 0.5 mm) to 6 * 6 mm Or a circular or polygonal shape having a contact area corresponding to the square contact surface 305. [

According to the seventh contact surface 305 of the present invention, the contact surface 305 of the touch portion 105 has a rectangular contact surface 305 (3 mm × 3 mm × 0.5 mm) of 6 × 6 mm Or a circular or polygonal shape having a contact area corresponding to the square contact surface 305. [

According to the first to seventh contact surfaces 305, the contact surface 305 of the touch portion 105 has a contact area corresponding to the circular contact surface 305 of 7 mm (± 0.5 mm) (for example, 38.465 mm 2 (+ 5.69 mm < 2 >)). According to the method of the present invention, the touch rate of the touch module 100 increases as the contact area corresponding to the contact surface 305 of the touch portion 105 is larger. The touch module 100 according to the present invention has a geometrical relationship (or a geometric relationship formed by a plurality of touch parts 105) formed through a plurality of touch parts 105 disposed on one side area 115 of the frame part 110 A relationship between a touch and a touch characteristic occurring at a touch point of time) is used as the identification means and / or the authentication means. Therefore, as the number of touch parts 105 disposed on one side area 115 of the frame part 110 increases and / or as the area of one side area 115 of the frame part 110 increases, The number of geometric relationships formed through the touch portion 105 increases and the uniqueness of the touch module 100 (i.e., the geometric relationship of the plurality of touch portions 105 disposed in each touch module 100) The feature that the touch modules 100 are arranged in different unique geometric relationships) is improved. The area of the capacitive touch screen to which the touch module 100 is to be touched is limited, and the area of one side area 115 of the touch module 100 to be touched by the capacitive touch screen is smaller than the area of the capacitive touch screen It can not be big. For example, if the length of the electrostatic touch screen is 75 mm * 50 mm, the one side area 115 of the touch module 100 may have a circular area of 50 mm or less in diameter or a diagonal line of 50 mm (However, instead of reducing the diagonal length to less than 50 mm by forming a groove in the corner of the rectangle, the length of one side of the rectangle can be extended by the radius of the groove). That is, the area of one side area 115 of the frame part 110 of the touch module 100 is limited by the area of the electrostatic touch screen. The uniqueness of the touch module 100 is variable according to the contact area of the contact surface 305 of the touch portion 105 disposed in the one side region 115 of the limited area and corresponds to the contact surface 305 of the touch portion 105 The number of the touch portions 105 that can be arranged in the one side region 115 of the limited area and / or the number of the geometric relationships formed by the specified number of the touch portions 105 increases. Accordingly, the present invention defines the maximum threshold value of the contact area formed by the contact surface 305 of the touch part 105 as a contact area not larger than the contact area corresponding to the circular contact surface 305 of 7 mm (± 0.5 mm) do.

On the other hand, the minimum threshold value of the contact area formed by the contact surface 305 of the touch part 105 may be different for each electrostatic touch screen. In the electrostatic touch screen using a point touch using a human finger as an input means, the electrostatic touch screen requires a stable one-point touch only when a contact area of a certain area or more corresponding to the finger touch is touched Refers to a touch that provides a finger touch success rate of 95% or more in the absence of contamination or foreign matter on the surface of the electrostatic touch screen. In a manufacturer of a device equipped with an electrostatic touch screen, the minimum area (Not disclosed). Some electrostatic touchscreens provide a stable one-point touch at a contact area equal to or greater than the area corresponding to a circular contact surface 305 having a diameter of 6 mm (± 0.5 mm), while some other capacitive touch screens have a diameter of 3 mm 0.5 mm) of circular contact surface 305. In this case,

A preferred embodiment of the electrical resistance of the touch portion 105 according to the present invention is as follows.

According to the method of the present invention, the touch portion 105 has a contact surface 305 that is touched to the electrostatic touch screen and a predetermined contact portion that contacts the conductive region of the frame portion 110, The resistance value of the touch unit 105 is measured by using a predetermined resistance measuring instrument to measure a contact distance between the contact surface 305 and the most distant position (for example, the farthest position in the vertical direction with respect to the surface of the electrostatic touch screen) And the contact surface 305. The term " resistance "

According to the first resistance embodiment of the present invention, it is preferable that the electrical resistance of the touch part 105 is made to be 300 Ω or less, as measured resistance value of the touch part 105.

According to the second resistance embodiment of the present invention, it is preferable that the electrical resistance of the touch portion 105 is made such that the measurement resistance value of the touch portion 105 is 250 Ω or less.

According to the third resistance embodiment of the present invention, it is preferable that the electrical resistance of the touch part 105 is made such that the measurement resistance value of the touch part 105 is 200Ω or less.

According to the fourth resistance embodiment of the present invention, it is preferable that the electrical resistance of the touch portion 105 is made to be equal to or less than 150 ohms.

According to the fifth resistance embodiment of the present invention, it is preferable that the electrical resistance of the touch portion 105 is made such that the measurement resistance value of the touch portion 105 is 120 Ω or less.

According to the sixth resistance embodiment of the present invention, it is preferable that the electrical resistance of the touch part 105 is made to be equal to or less than 100 Ω in the measurement resistance value of the touch part 105.

According to the first to sixth resistance embodiments, the contact surface 305 of the touch part 105 is preferably manufactured so that the measurement resistance value does not exceed 300 ?. According to the method of the present invention, the lower the electrical resistance of the touch unit 105, the greater the touch rate of the touch module 100 is. However, due to the characteristics of the conductive rubber constituting the touch part 105, if the mixing ratio of the conductive carbon is increased in order to lower the electrical resistance of the touch part 105, the hardness increases. On the contrary, if the mixing ratio of the rubber is increased to lower the hardness of the touch part 105, the electrical resistance of the touch part 105 increases. As described above, since the conductive rubber used in the conventional touch pen is used as a point-touch-based input means, there is no problem in using even if the resistance of the conductive rubber is high (e.g. Further, when the contact area of the conductive rubber used in the touch pen is increased (for example, a circular contact area of 12 mm or more in diameter), the resistance of the conductive rubber is very high (for example, 10 6 Ω or more). The touch module 100 according to the present invention has a geometrical relationship (or a geometric relationship formed by a plurality of touch parts 105) formed through a plurality of touch parts 105 disposed on one side area 115 of the frame part 110 A relationship between a touch and a touch characteristic occurring at a touch point of time) is used as the identification means and / or the authentication means. Therefore, in order to recognize all the touches by touching the plurality of touch units 105 provided on the touch module 100 on the electrostatic touch screen in view of the characteristics of the capacitive touch screen using the serial circuit structure for sensing the capacitive touch, (105) must be low in electrical resistance. However, due to the characteristics of the conductive rubber produced by blending the conductive carbon with the nonconductive rubber, the resistance of the touch portion 105 can not be lowered to the conductive carbon level. The minimum measurement resistance value of the touch part 105 may be 70? Or more based on the hardness range of the touch part 105 according to the present invention. However, the present invention is not limited thereto, Depending on the method and the particle size of each powder. On the other hand, all-touch recognition of the plurality of touch units 105 has a correlation with the number of touch units 105 and / or the contact area corresponding to the contact surface 305 of the touch unit 105. [ For example, the resistance of the touch unit 105 should be low as the number of touch units 105 to be recognized as the touch increases, and the resistance of the touch unit 105 may be low as the contact area of the touch unit 105 increases .

A preferred embodiment of the electrical resistance of the touch part 105 considering the number of the touch parts 105 to recognize the touch is as follows.

According to the number-resistor embodiment of the present invention, when the number of touch parts 105 to be recognized by touch is four or more (the maximum number of touch parts 105 at this time is the maximum multi-touch of each capacitive touch screen) The electrical resistance of the touch part 105 may be less than or equal to 200 ohms and the touch resistance of the touch part 105 may be less than or equal to about 200 ohms. It is preferable that the resistance value is set to 150 Ω or less. For example, in a case where the number of touch units 105 to be touch-recognized is four or more, in order to provide a stable 95% or more touch rate even in the pollution of the living environment, the measurement resistance value of the touch unit 105 is set to 150? And it is preferable that the electrostatic touch screen provides a touch rate of 95% or more in a clean state (= no pollution state) or a touch rate of less than 95% (preferably, 80% or more) The measured resistance value of the touch unit 105 may be less than or equal to 200 OMEGA. On the other hand, if the number of the touch units 105 is 4 or 5, a touch rate of 95% or more can be provided for a clean electrostatic touch screen up to a resistance value of the touch unit 105 of 300? If the measurement resistance value of the unit 105 is made to exceed 300 ?, the touch rate is reduced to less than 20% due to pollution of living environment on the electrostatic touch screen.

In the number-resistor embodiment, the contact surface 305 of the touch portion 105 is larger than the contact area (e.g., 38.465 mm 2 (+5.6 mm 2)) corresponding to the circular contact surface 305 of 7 mm And the contact area exceeding this is excluded from consideration of the measured resistance value.

According to a preferred embodiment of the electrical resistance of the touch portion 105 considering the hardness of the touch portion 105, the hardness of the touch portion 105 is 70 (± 5) or less based on the Shore A hardness scale, It is preferable that the electrical resistance of the touch part 105 to provide a stable 95% or more touch rate in environmental pollution is made to be 120 ohm or less. When the measured resistance value of the touch part 105 is 120 Ω or less, a stable touch rate can be provided irrespective of the number of the touch parts 105.

In the embodiment of the present invention, the feature of the present invention will be described in which the number of the plurality of touch parts 105 provided in the touch module 100 is N, which is made of a conductive rubber material satisfying the above-mentioned conditions for convenience , The number N of the touch portions 105 is not limited to a specific value. For example, in the embodiment of FIG. 1A, the number of the conductive rubber-type touch parts 105 provided in the touch module 100 is 'N = 5' The number of touch parts 105 is 12, and the number of touch parts 105 made of a conductive rubber material is 'N <12'.

FIGS. 2A to 2H are views illustrating a manufacturing process of the touch module 100 according to an embodiment of the present invention.

More specifically, Figs. 2a to 2h show a process of fabricating the touch module 100 by disposing N touch parts 105 made of a conductive rubber material in a specified geometrical relationship and disposing them in the frame part 110, Those skilled in the art will be able to refer to and modify various aspects of the fabrication process of the touch module 100 with reference to FIGS. 2a through 2h, The present invention is not limited to the above-described embodiments. Therefore, the present invention includes all the methods of manufacturing the touch module 100 by selectively combining the configurations of two or more of the embodiments shown in FIGS. 2a through 2h, or omitting a part of the configurations, as a scope of right .

The touch module 100 according to the present invention includes N touch parts 105 made of a conductive rubber material and a frame part 110 fixing and fixing the N touch parts 105 in a specified geometrical relationship And the frame unit 110 transmits the electrostatic capacity stored in the human body to the touch unit 105 when the touch module 100 (or the object on which the touch module 100 is mounted) contacts the human body. And at least one side thereof is provided with a conductive region.

2A, the frame unit 110 includes an upper plate 200 for supporting N touch units 105, a middle plate unit 200 for embedding N touch units 105 in a predetermined geometric relationship, And a lower plate part 210 for exposing the N touch parts 105 to the outside according to a specified geometrical relationship.

The upper plate 200 is a general term for plates that support N touch units 105 disposed in the frame unit 110 in a specified geometric relationship. The N touch units 105 have a geometric property relationship, To be touched on the screen. Preferably, the top plate 200 is made of a conductive material or includes at least a conductive region on one side. The conductive material or conductive region of the upper plate 200 may be electrically connected to the touch portion 105.

The middle plate portion 205 is a collective term of a plate in which N touch portions 105 arranged in the frame portion 110 are arranged in a specified geometrical relationship and is disposed between the upper plate portion 200 and the lower plate portion 210, And a buried groove for embedding the N touch portions 105 in a specified geometric relationship.

The touch unit 105 is a collective term for inducing an electrostatic change of the electrostatic touch screen when the touch module 100 is touched to the electrostatic touch screen, and may be made of a conductive rubber material.

The lower plate portion 210 is a general term of a plate exposing the N touch portions 105 in a specified geometric relationship and is disposed under the middle plate portion 205. The N touch portions 105 are arranged in a specified geometric relationship As shown in FIG. The touch portion 105 may protrude to the outside of the lower plate 210 with a height designed through the exposure groove or may be made to have the same height as the lower plate 210.

2A, the touch module 100 includes the upper plate 200, the middle plate 205, the toucher 105 and the lower plate 210 as shown in FIG. 2A, The upper plate portion 200 and the middle plate portion 205 are joined to each other and the touch portion 105 is embedded in the recessed groove of the middle plate portion 205 as shown in FIG. The lower plate portion 210 is joined to the middle plate portion 205 so that the touch portion 105 buried in the buried groove of the middle plate portion 205 is exposed through the exposed groove of the lower plate portion 210 as shown in FIG. Can be fabricated as shown in Fig. 2a (e). The upper plate part 200, the middle plate part 205 and the lower plate part 210 may be bonded together through an adhesive agent (for example, a conductive adhesive agent), or may be laminated by thermal bonding or bolt assembly.

Referring to FIG. 2B, the touch module 100 includes N touch portions 105 made of a conductive rubber material and a touch plate portion integrally formed with a touch plate made of a conductive rubber material. The frame part 110 includes an upper plate part 200 for supporting the touch plate part and a lower plate part 210 for exposing the N touch parts 105 provided on the touch plate part to the outside.

The top plate 200 is a general term of a plate for supporting the N touch parts 105 disposed in the frame part 110 in a specified geometric relationship and is preferably made of a conductive material or includes at least a conductive area . The conductive material or conductive region of the upper plate 200 may be electrically connected to the touch portion 105.

The touch plate portion is integrally formed by integrating N touch portions 105 made of a conductive rubber material and a touch plate made of a conductive rubber material, and arranges the N touch portions 105 in a specified geometrical relationship. The touch plate portion may be manufactured by cutting a conductive rubber plate having a predetermined thickness, or may be manufactured by compression molding.

The lower plate portion 210 is a general term of a plate exposing the N touch portions 105 in a specified geometric relationship and is disposed under the touch plate portion and exposes the N touch portions 105 in a specified geometric relationship And an exposed groove. Preferably, the lower plate 210 is made of a nonconductive material, or at least one side region 115, through which the touch portion 105 is exposed through the exposure groove, may include a nonconductive material or a nonconductive region .

2B, the touch module 100 includes the upper plate 200, the touch plate, and the lower plate 210 as illustrated in FIG. 2B, and the upper plate 200 The lower plate portion 210 is joined to the touch plate portion so that the touch portion 105 of the touch plate portion is exposed through the exposure groove of the lower plate portion 210 as shown in (c) of FIG. 2b, (D) of Fig. 2b. The upper plate 200, the touch plate, and the lower plate 210 may be adhered via an adhesive (for example, a conductive adhesive) or may be laminated through bolt assembly.

Referring to FIG. 2C, the touch module 100 includes N touch portions 105 made of a conductive rubber material and a touch plate portion integrally formed with a touch plate made of a conductive rubber material. The frame part 110 includes an upper plate part 200 for supporting the touch plate part.

The top plate 200 is a general term of a plate for supporting the N touch parts 105 disposed in the frame part 110 in a specified geometric relationship and is preferably made of a conductive material or includes at least a conductive area . The conductive material or conductive region of the upper plate 200 may be electrically connected to the touch portion 105.

The touch plate portion is integrally formed by integrating N touch portions 105 made of a conductive rubber material and a touch plate made of a conductive rubber material, and arranges the N touch portions 105 in a specified geometrical relationship. The touch plate portion may be manufactured by cutting a conductive rubber plate having a predetermined thickness, or may be manufactured by compression molding.

In the embodiment of FIG. 2C, the touch module 100 includes the upper plate 200 and the touch plate as shown in (a) of FIG. 2b and the upper plate 200 and the touch plate, . The upper plate 200, the touch plate, and the lower plate 210 may be adhered via an adhesive (for example, a conductive adhesive) or may be laminated through bolt assembly.

Referring to FIG. 2D, the frame unit 110 includes a top plate 200 and N touch units 105, which support the N touch units 105 in a predetermined geometric relationship and support the N touch units 105 in a specified geometric relationship. And a lower plate part 210 which is exposed to the outside.

The upper plate 200 is a general term for plates supporting N touch units 105 disposed in the frame unit 110 in a specified geometric relationship and arranging the N touch units 105 in a specified geometric relationship, Preferably made of a conductive material, or comprises at least a conductive region on one side. The conductive material or conductive region of the upper plate 200 may be electrically connected to the touch portion 105. The upper plate 200 includes buried grooves for embedding the N touch parts 105 in a specified geometric relationship.

The touch unit 105 is a collective term for inducing an electrostatic change of the electrostatic touch screen when the touch module 100 is touched to the electrostatic touch screen, and is preferably made of a conductive rubber material.

The lower plate portion 210 is a general term of a plate exposing the N touch portions 105 in a specified geometric relationship and is disposed under the upper plate portion 200. The N touch portions 105 are arranged in a specified geometric relationship And exposing grooves to expose. Preferably, the lower plate 210 is made of a nonconductive material, or at least one side region 115, through which the touch portion 105 is exposed through the exposure groove, may include a nonconductive material or a nonconductive region .

2d, the touch module 100 includes a top plate unit 200, a touch unit 105, and a bottom plate unit 210 as shown in FIG. 2d, The touch portion 105 embedded in the groove of the upper plate 200 through the exposed groove of the lower plate 210 as shown in (D) of FIG. 2D after the touch portion 105 is embedded in the groove of the upper plate 200, The lower plate portion 210 may be joined to the upper plate portion 200 so that the lower plate portion 210 is exposed as shown in FIG. The upper plate portion 200 and the lower plate portion 210 may be bonded together through an adhesive (for example, a conductive adhesive), or may be laminated through thermal bonding or bolt assembly.

2e or 2f, the frame 110 includes an upper plate 200 for supporting the N touch parts 105 in a specified geometrical relationship, and a plurality of N touch parts 105, And a lower plate portion 210 for exposing to the outside.

The top plate 200 is a general term of a plate for supporting the N touch parts 105 disposed in the frame part 110 in a specified geometric relationship and is preferably made of a conductive material or includes at least a conductive area . The conductive material or conductive region of the upper plate 200 may be electrically connected to the touch portion 105.

The touch unit 105 is a collective term for inducing an electrostatic change of the electrostatic touch screen when the touch module 100 is touched to the electrostatic touch screen, and is preferably made of a conductive rubber material.

The lower plate portion 210 is a general term of a plate exposing the N touch portions 105 in a specified geometric relationship and is disposed under the upper plate portion 200. The N touch portions 105 are arranged in a specified geometric relationship And exposing grooves to expose. Preferably, the lower plate 210 is made of a nonconductive material, or at least one side region 115, through which the touch portion 105 is exposed through the exposure groove, may include a nonconductive material or a nonconductive region .

In the embodiment of FIG. 2E or FIG. 2F, the touch module 100 includes the upper plate portion 200, the touch portion 105 and the lower plate portion 210 as illustrated in FIG. 2E or FIG. 2F, The upper plate 200 is supported by the upper plate 200 through the exposed grooves of the lower plate 210 as shown in FIG. 2E or FIG. 2F (D) while the touching part 105 is supported on the upper plate 200 as shown in FIG. The lower plate portion 210 may be joined to expose the touch portion 105 as shown in FIG. 2E or FIG. 2F. The upper plate portion 200 and the lower plate portion 210 may be bonded together through an adhesive (for example, a conductive adhesive), or may be laminated through thermal bonding or bolt assembly.

Referring to the embodiment of FIG. 2g or FIG. 2h, the frame unit 110 includes an upper plate 200 for supporting and supporting N touch units 105 in a specified geometric relationship.

The upper plate 200 is a general term for plates supporting N touch units 105 disposed in the frame unit 110 in a specified geometric relationship and arranging the N touch units 105 in a specified geometric relationship, Preferably made of a conductive material, or comprises at least a conductive region on one side. The conductive material or conductive region of the upper plate 200 may be electrically connected to the touch portion 105. The upper plate 200 has buried grooves for embedding the N touch parts 105 in a specified geometric relationship. The buried grooves can be realized by cutting.

The touch unit 105 is a collective term for inducing an electrostatic change of the electrostatic touch screen when the touch module 100 is touched to the electrostatic touch screen, and is preferably made of a conductive rubber material.

In the embodiment of FIG. 2g or 2h, the touch module 100 includes the upper plate 200 and the touch portion 105 as shown in FIG. 2g or FIG. 2h, The touch portion 105 may be embedded in the buried groove of the upper plate 200 as shown in FIG. 2g or FIG. 2h. The touch portion 105 may be embedded in the recess by the elasticity of the conductive rubber material or may be held in the upper plate portion 200 through the conductive adhesive.

In the embodiments of FIGS. 2a through 2h, the N touch units 105 fixed to the frame unit 110 of each touch module 100 have uniqueness that forms a unique geometric relationship for each touch module 100 . In addition to the geometric relationship formed by the N touch units 105, the touch module 100 may be provided with an identification and / or authentication characteristic, or the touch module 100 (or the touch module 100 may be mounted When an authentication means associated with the geometric relationship of the N touch units 105 is provided in the touch unit 105 or the like where the N touch unit 105 operates, The uniqueness of a relationship does not necessarily have to be respected.

Meanwhile, the area of one side area 115 of the frame part 110 included in the touch module 100 is finite, and the N touch parts 105 disposed in the one side area 115 are finite The number of cases in which the N touch portions 105 can be arranged in different geometric relationships in the one side region 115 is limited. According to the present invention, in the process of designing the position where the N touch parts 105 are arranged in the one side area 115 of the touch module 100, the N touch parts 105 ) Is set to a different geometric relationship, the minimum distinction distance is set to derive the maximum number of cases.

In the case where two or more touch units 105 are touched to the electrostatic touch screen, the minimum distinction recognition distance can distinguish the touch points by the two or more touch units 105 in the corresponding electrostatic touch screen by different touch points Include the minimum separation distance. For example, if the distance between the two touch points of the capacitive touch screen is less than 7 mm, the two touch points are recognized as one touch point, and when the distance is more than 7.5 mm, It is preferable that the minimum distinction recognition distance includes 7.5 mm. On the other hand, if there are two or more capacitive touch screens corresponding to a target to be touched by the touch module 100, the minimum distinguishable distance may be a minimum recognizable distinction distinction between two touch touched points in two or more capacitive touch screens The larger the distance of the separation distance between the two.

According to the method of the present invention, the minimum distinction recognition distance is a value that correlates with the contact area of the touch part 105. That is, the minimum distinction recognition distance may be a value set on the electrostatic touch screen, but is a value experimentally obtained using an assumed threshold based on an allowable error. For example, even in the case of the same electrostatic touch screen, when the touch area 105 has a contact area of 25 mm 2 (for example, a contact surface 305 formed in a square shape of 5 mm * 5 mm) The minimum distinction recognition distance may be different when the distance and the contact area of the touch portion 105 is larger than 38 mm 2 (for example, the contact surface 305 formed in a circular shape with a diameter of 7 mm). Therefore, the minimum distinction recognition distance is preferably set based on the experimental data of the plurality of electrostatic touch screens based on the contact area of the touch unit 105. [ At this time, the minimum distinction recognition distance is preferably set as a distance between an outline and an outline of a graphic object that implements the contact surface 305 of the touch unit 105. However, the present invention is not limited thereto, 105 may be set to the distance between the central portion and the central portion of the contact surface 305 of the contact surface.

According to the present invention, the different geometrical relationships formed by the N touch units 105 provided in each touch module 100 of the same type can be used to distinguish the identities that can be distinguished in different geometric relationships even if they touch the capacitive touch screen You must have. The touch for the electrostatic touch screen is a touch, not the point touch, and the operating system of the apparatus having the electrostatic touch screen calculates the touch point as the touch point, . Therefore, in order to allow the N touch portions 105 having different geometric relations to be distinguished in the geometric relationship in the frame portion 110 of the touch module 100 even when the N touch portions are touched on the electrostatic touch screen, Respectively.

The minimum identification distances are designed in different geometric relationships so that the N touch parts 105 disposed in the frame part 110 of the touch module 100 are distinguished in different geometric relationships even when touched on the electrostatic touch screen The N touch units 105 provided in the different touch modules 100 must be apart from each other. For example, if the touch surface of the same area is moved by 3.5 mm or more and the touch surface is touched to the capacitive touch screen, if the operating system of the apparatus having the capacitive touch screen recognizes the touch surface moved by 3.5 mm or more as a different touch point, The minimum identification distance may be set to a value greater than or equal to 3.5 mm. It is preferable that the minimum identification distance includes a center distance of the comparison target touch part 105 provided in one side area 115 of the frame part 110 provided in another touch module 100 of the same type.

According to an embodiment of the present invention, the minimum identification distance may be a value set on the electrostatic touch screen, but is a value experimentally obtained using an assumed threshold based on an allowable error. On the other hand, if there are two or more capacitive touchscreens corresponding to a target to be touched by the touch module 100, the minimum identification distance is a minimum distance between two or more minimum capacitive touchscreens It can be set to a large separation distance.

According to the present invention, even if the touch module 100 does not need to align the N touch units 105 provided in the frame unit 110 in a specific direction or a specific area of the electrostatic touch screen, And the N touch points are recognized so that the geometric relationship formed by the N touch points is determined according to the designed geometric relationship and the design tolerance range Lt; RTI ID = 0.0 &gt; authentic &lt; / RTI &gt;

For the readability of the N touch units 105 included in the touch module 100 of the present invention, the N touch units 105 are touched to the electrostatic touch screen, and coordinate rotation And the geometric relationship to the N touch points should not be changed or distorted by coordinate rotation. In order to do this, at least one touch point, which is a reference of the geometric relationship reading or the coordinate rotation among the N touch points, must be identified by using the N touch points touched on the electrostatic touch screen. However, in order to align the touch module 100 in a specific direction of the electrostatic touch screen to predetermined touch, or to not touch the specific area, a touch point of the N touch points that are arbitrarily and randomly selected It is technically very difficult to always specify the same reference point.

In order to specify at least one reference point previously designated among the N touch points regardless of the direction of touch of the N touch units 105 provided on the touch module 100 in any direction of the electrostatic touch screen, At least one general touch part 105 which is not a reference point among the N touch parts 105 provided in the touch panel 100 is provided in one side area 115 of the touch module 100 under the same condition, The designation touch unit 105 is provided in one area 115 of the touch module 100 under different conditions from other general touch units 105 so that the N touch points provided on different conditions among the N touch points touched on the electrostatic touch screen And at least one touch point is detected and specified as a reference point. Herein, the reference point specifying condition for specifying the reference point among the N touch points includes a condition that the designated touch unit 105 is a reference point in one side area 115 of the frame unit 110, (For example, a condition for designing different design conditions with respect to the designated touch portion 105) and / or designing the geometric characteristics of the designated touch portion 105 itself to be different from the geometric characteristics of other general touch portions 105 105 and the general touch part 105 may be designed and manufactured in different shapes or areas).

According to a preferred embodiment of the present invention, in order to specify at least one reference touch point among the N touch points, one side area 115 of the touch module 100 is divided into a plurality of divided areas 400 smaller than N (Here, the divided area 400 includes a divided area 400 divided into a lattice structure, a divided area 400 divided into concentric circles based on the center point of the one side area 115, (For example, a divided area 400 divided by a specified angle), and a general touch portion 105 of a specified number (for example, one per divided region 400) at a calculated position on each divided region 400, The designated touch portion 105 to be the reference point is provided at a designated position (for example, a corner portion or the like) on any one of the divided regions 400 of the divided region 400, And a condition for providing the remaining common touch portion 10 The touch unit 105 provided at the designated position on the divided area 400 having the touch unit 105 exceeding the designated number of the divided areas 400 can be designed and manufactured differently. Can be specified as the reference point of geometric relationship reading or coordinate rotation. For example, when the touch module 100 is manufactured by providing N touch parts 105 on one side area 115 of the touch module 100, the one side area 115 is designed to have n (2? N One of the n divided regions 400 is divided into a plurality of divided regions 400 and then one general touch portion 105 is disposed at a calculated position on the n divided regions 400, The frame section 110 can be manufactured by setting the area of the designation area 405 as a designation area 405 and providing one designation touch part 105 at a designated position (e.g., a corner part) of the designation area 405. In this case, the touch authentication module for authenticating the geometric relationship formed by the N touch points and the geometric relationship in the design is configured to transmit the component values of the N touch points touched on the electrostatic touch screen to the touch module 100, The designation area 405 is distinguished from the designation area 405 by designating at least one designation area 405 in which two touch points are present among the n areas 400, The touch point existing at the designated position of the touch point can be determined as the reference touch point.

FIG. 3 is a view showing a structure of a touch part 105 according to an embodiment of the present invention.

More specifically, FIG. 3 illustrates the structure of the touch unit 105 arranged in a geometric relationship with the frame unit 110 of the touch module 100. As a person skilled in the art, Referring to FIG. 3 and / or FIG. 3, various embodiments of the structure of the touch part 105 can be deduced. However, the present invention includes all the methods of the present invention. The technical features thereof are not limited only by the method of implementation.

The touch part 105 of the present invention is a generic term of the components included in the touch module 100 and recognized as a touch point by inducing a change in electrostatic force with respect to the electrostatic touch screen and is disposed in the frame part 110 in a designed geometric relationship do.

The touch portion 105 is designed and manufactured to have a contact surface 305 in the form of a predetermined graphic (e.g., polygonal or circular or elliptical) shape. The contact surface 305 of the touch portion 105 has a contact area calculated by a design so as to be effectively touched to the electrostatic touch screen. The contact area corresponds to a touch sensitivity capable of recognizing the electrostatic touch using the touch part 105 as one effective touch point in a plurality of capacitive touch screens corresponding to the touch object based on the electrostatic capacity of the human body The area is designed to be greater than or equal to the area. When the touch units 105 of the touch module 100 are designed to be effectively touched by different kinds of electrostatic touch screens (or mounted on different models), the touch sensitivities of the respective electrostatic touch screens are different from each other The contact area of the touch portion 105 may be equal to or greater than an area of the area corresponding to each touch sensitivity recognizable by each of the electrostatic touch screens (i.e., an area corresponding to a smaller touch sensitivity) Is preferably calculated.

The side structure of the touch part 105 may be formed in the form of a 'T' with the touch body 300 at the center of the embedded part 310 as shown in (a) of FIG. 3, The touch body 300 may be formed in a shape of 'Γ' having the touch body 300 biased to one side of the embossing unit 310 as shown in FIG. Quot; I &quot;, including &quot; I &quot;.

The embedding unit 310 of the touch unit 105 is named in a portion of the structure of the touch unit 105 embedded in the embedding groove when the embedding groove is provided in the frame unit 110, The touch body 300 of the touch screen 105 is named in the body that constitutes the contact surface 305 that is touched to the capacitive touch screen.

In the embodiment of FIGS. 3A and 3B, the embedding portion 310 is a portion which is supported on the upper plate 200 in the embodiment of FIGS. 2A, 2D, 2E, 2G, When the lower plate portion 210 having the exposed groove is joined as shown in Figs. 2a, 2d, and 2e, the touch portion 105 may be adhered or adhered to the touch portion The touch portion 105 is fixed to the frame portion 110 even if the touch portion 105 is not fixed due to the elasticity of the material of the touch portion 105. Particularly, the embedded portion 310 can enlarge the contact area between the conductive region of the upper plate portion 200 and the touch portion 105 of the conductive rubber material, thereby enabling stable electrostatic touch.

Preferably, the touch portion 105 is formed with a hardness of 30 or more and less than 90 on the basis of a Shore A hardness scale having a predetermined elasticity, and the center portion of the contact surface 305 is formed with a predetermined shape, And can be manufactured by rounding a structure protruding convexly according to a predetermined curvature on a boundary line of a shape. When the touch unit 105 thus manufactured is touched to the electrostatic touch screen, the center portion protruding from the contact surface 305 of the touch unit 105 with a predetermined curvature convexly is first touched to the electrostatic touch screen, The central portion of the contact portion 305 of the touch portion 105 is tilted by the biasing force so that the entire contact surface 305 of the touch portion 105 forms the calculated contact area, . The center point (= touch point) of the touch surface touched to the electrostatic touch screen by the touch portion 105 corresponds to the center portion of the contact surface 305 formed in the touch portion 105, or at least within the calculated error range To the center of the contact surface (305). On the other hand, the round process may be omitted according to the embodiment, and thus the present invention is not limited thereto.

The touch portion 105 may be formed by forming a void in the interior of the touch body 300 (or the embedded portion 310). The void space inside the touch part 105 provides a space for contracting the inside of the touch part 105 while the central part of the contact surface 305 protruding with a certain curvature is disturbed by the pressing force. Since the touch module 100 is touched by the electrostatic touch screen in a state of being held by a person's hand, the pressing force applied to the touch portion 105 by the hand of the person is the vertical direction component of the electrostatic touch screen Not only the horizontal direction component exists but also the horizontal direction component exists. At this time, even if a horizontal component exists in the pressing force, the void space inside the touch part 105 does not distort to the one side due to the horizontal direction component of the contact surface 305 of the touch part 105, To the inside of the touching portion 105 by means of the elastic member. If the touch point 105 is distorted to one side of the horizontal direction component due to the pushing force of the contact surface 305, the center of the touched surface of the touch screen is moved in a distorted direction, The errors of the geometric relationships formed by the points increase. The empty space in the touch portion 105 prevents or minimizes the occurrence of such an error.

4 is a diagram illustrating a geometric relationship of a touch part 105 provided in a touch module 100 according to an embodiment of the present invention.

More specifically, FIG. 4 illustrates a geometrical relationship in which a plurality of touch parts 105 are disposed on one side area 115 of the frame part 110 based on the touch module 100 shown in FIG. Those skilled in the art will appreciate that various embodiments of the geometric relationship of the touch portion 105 (e.g., some of the components may be omitted or subdivided However, the present invention is not limited to the above-described embodiments, and the technical features of the present invention are not limited thereto.

According to the present invention, even if the touch module 100 does not need to align the N touch units 105 provided in the frame unit 110 in a specific direction or a specific area of the electrostatic touch screen, And the N touch points are recognized so that the geometric relationship formed by the N touch points is determined according to the designed geometric relationship and the design tolerance range Lt; RTI ID = 0.0 &gt; authentic &lt; / RTI &gt; Such readability can be ensured by a rule that sets one of the N touch units 105 as a reference point even if N touch units 105 are touched in any direction on the electrostatic touch screen have.

According to an embodiment of the present invention, in order to ensure the readability of the geometric relationship of the N touch units 105, the one side area 115 of the touch module 100 is divided into n (2? N <N) The divided area 400 is divided into a plurality of divided areas 400. The divided area 400 is divided into a plurality of divided areas 400 divided into concentric circles based on the center point of the one side area 115 (E.g., a divided area 400 divided by a specified angle with respect to the center point, etc.), a predetermined number (for example, one per divided area 400) in a calculated position on each divided area 400 The designated touch unit 105 having the touch unit 105 as a reference point is provided at a designated position (e.g., a corner portion) on one of the divided areas 400 of the divided area 400, (105) serving as a reference point in one area (115) of the touch panel (100) The conditions including a tooth (105) different from the design can be manufactured.

The embodiment of FIG. 4 divides one side area 115 of the touch module 100 into n grid structures by design, and then the n touch parts 105 calculated in the design on the n divided areas 400, (For example, one touch portion 105 for each of the divided regions 400), and a predetermined designated position 405 on any one of the n divided regions 400 And a single designation touch part 105 is provided on the display part. However, the embodiment of the present invention is not limited to the embodiment shown in FIG. 4, but can be variously modified or applied, and it is clear that the present invention covers all such embodiments.

4, in a process of designing a position for disposing N touch units 105 on one side area 115 of the frame unit 110 of the touch module 100, One side area 115 of the actual frame part 110 is divided into n divided areas 400 by design (the divided area 400 is designed and exists on one side area 115 of the actual frame part 110) It does not have to be displayed). In order to form a geometric relation in the n divided regions 400, one touch portion 105 is disposed at a design calculated position, and one of the n divided regions 400 And is designed to arrange one touch portion 105 corresponding to the reference point at a design designated position. That is, one touch unit 105 is disposed in (n-1) divided areas 400 of the n divided areas 400, and two touch units 105 are provided in one designated area 405, Respectively. Preferably, the designated position may be specified at a position tangent to the figure outline of the side area 115 or at an edge position of the figure outline.

When touching the electrostatic touch screen by arranging N touch units 105 in the n divided regions 400 as described above, the touch authentication module may include n division regions (N) provided with the N touch units 105 400 are matched to N touch points to identify any one of the two designated areas 405 recognized as touch points of the n divided areas 400, The touch point can be defined as a reference point of the N touch points. When the N touch units 105 are touched in any direction on the electrostatic touch screen, it is possible to compare the N touch units 105 with the geometric relationship of the registered touch authentication conditions.

4, when one side area 115 of the frame part 110 of the touch module 100 is divided into n divided areas 400, each of the divided areas 400, There may be a certain margin between the divided regions 400. [ Preferably, the margins include an interval corresponding to the minimum distinction recognition distance. In this case, even if the touch portion 105 is provided at any position on each of the divided regions 400, The touch units 105 are always kept at a state distant from the minimum distinction recognition distance. On the other hand, when the margins are designed between the divided regions 400 as in the embodiment of FIG. 4, the area of the one side region 115, in which the positions for arranging the N touch units 105 can be calculated, do. According to another embodiment of the present invention, in order to secure the area for positioning the N touch units 105, the margin is omitted and the divided area 400 is divided, and N touch units 105 are arranged It is possible to calculate each touch unit 105 to be less than the minimum distinction recognition distance in the process of calculating the position.

5a and 5b illustrate an embodiment using the touch module 100 according to an embodiment of the present invention.

5a and 5b illustrate an embodiment of a touch coating in which the touch module 100 is mounted on an object in a paint form. If a person skilled in the art is familiar with the present invention, It is possible to refer to and / or modify various embodiments of the touch module 100 (e.g., some components omitted, or broken down or combined) with reference to FIGS. 5a and 5b, All of the above-described embodiments are included, and the technical features of the present invention are not limited only by the method shown in FIGS. 5A and 5B.

The touch module 100 according to the present invention may include a touch card or a touch pad 500 which is mounted on a card-shaped object or formed in a card shape by thinning the plate thickness and the height of the touch pad 105 The touch module 100 may be mounted on various types of objects such as a painted object or a touch paint made in a paint form, or may be manufactured in various forms. FIG. 5A and FIG. FIG. 5 shows an embodiment of a touch paint which is mounted on a product or is formed in a paint form.

5A illustrates a process of manufacturing a touch paint including the touch module 100, and FIG. 5B illustrates a cross section of a touch paint including the touch module 100 through the process of FIG. 5A .

Referring to FIG. 5A, touch coating is performed by fabricating a touch module 100 in which a plurality of touch portions 105 are arranged in a designed geometrical relationship in a frame portion 110, the frame portion 110 of the touch module 100, The coupling part 520 is inserted into the groove of the housing part 515 to be assembled with the adapter part 505 and the adapter part 505 And the spring unit 510 is provided between the housing unit 515 and the touch module 100 so that the touch module 100 is made to float in the air in the housing unit 515 at a predetermined distance from the floor, (Not shown).

The touch module 100 is manufactured through at least one of the manufacturing processes of FIGS. 2a to 2h or a fabrication process applied thereto. The frame module 110 of the touch module 100 (for example, the top module 200) Has an engaging portion 520 to be engaged with the handle portion 500 (or the adapter portion 505) of the touch coating.

The housing part 515 protects the touch part 105 or the frame part 110 provided in the touch module 100 from external impact and also protects the touch part 105 5A, the housing portion 515 is a general term for a structure that protects the contact portion 305 of the touch portion 105 from damage caused by an external impact and various kinds of contamination that hinders the sensitivity of the electrostatic touch. A groove into which the engaging portion 520 of the touch module 100 is inserted and a spring portion 510 are fixed.

The adapter unit 505 is coupled to the engaging unit 520 of the touch module 100 inserted in the groove of the housing unit 515 to connect the touch module 100 with the handle 500, And a spring unit 510 is provided between the adapter unit 505 and the housing unit 515. The touch unit 105 is mounted on the touch module 100 in a state where the touch unit 105 faces the floor, The touch portion 105 of the touch panel 100 is kept floating in the air at a predetermined height so as to be protected from external impact or contamination.

The coupling part 520 inserted into the groove of the housing part 515 is assembled by bolt assembly (or adhesion using an adhesive) to the adapter part 505, and the handle part 500 And the touch paint as shown in FIG. 5B is produced. The adapter portion 505 and the handle 500 can be screwed or glued together. According to the method of the present invention, the handle 500 and the housing 515 can be manufactured in various designs.

5B illustrates an example of a touch paint produced through the process of FIG. 5A. FIG. 5B illustrates a touch portion 105 of the touch module 100 provided in the touch paint, It is illustrated that the screen is touched. 5B, in order for the touch portion 105 of the touch module 100 included in the touch coating to touch the electrostatic touch screen, a force larger than the elastic force of the spring portion 510 (for example, Compression force) must be applied. However, the pressing force applied to the touch coating is a force for touching the touch portion 105 of the touch module 100 floating on the electrostatic touch screen inside the housing by the spring portion 510 to the electrostatic touch screen, The pressing force itself does not cause a touch (i.e., it is not a pressure-sensitive touch unless the electrostatic touchscreen supports a pressure sensitive touch).

100: touch module 105: touch part
110: frame part 115: one side area
200: upper plate portion 205: middle plate portion
210: lower plate part 300: touch body
205: contact surface 310:
400: divided area 405: designated area

Claims (15)

1. A capacitive touch module that is touched by a capacitive touch screen,
A plurality of touch parts made of a conductive rubber material and having a contact surface to be electrostatically touched on the electrostatic touch screen; And
And a frame portion having at least one conductive region for arranging the plurality of touch portions in one side region in a specified geometric relationship and transmitting the capacitance of the human body to the touch portion,
Wherein the number of the touch portions is four or more,
Wherein the electrical resistance of the touch part is made such that a measurement resistance value between the contact part contacting the conductive area of the frame part and the contact surface of the part of the touch part is 150 ohm or less.
The touch sensor according to claim 1, wherein the electrical resistance of the touch portion
Wherein a measurement resistance value between the contact portion and the contact surface is set to 70? Or more.
The touch panel according to claim 1,
And a hardness of 60 (± 5) to 70 (± 5) based on a Shore A hardness scale.
The touch panel according to claim 1,
Is formed in a circular contact surface having a diameter of 6 mm (± 0.5 mm) to 7 mm (± 0.5 mm), or an elliptical or polygonal shape having a contact area corresponding to the circular contact surface.
The touch panel according to claim 1,
Is formed in a circular contact surface having a diameter of 5 mm (± 0.5 mm) to 7 mm (± 0.5 mm), or an elliptical or polygonal shape having a contact area corresponding to the circular contact surface.
The touch panel according to claim 1,
Is formed in a circular contact surface having a diameter of 4 mm (± 0.5 mm) to 7 mm (± 0.5 mm), or an elliptical or polygonal shape having a contact area corresponding to the circular contact surface.
The touch panel according to claim 1,
Is formed in a circular contact surface having a diameter of 3 mm (± 0.5 mm) to 7 mm (± 0.5 mm), or an elliptical or polygonal shape having a contact area corresponding to the circular contact surface.
The touch panel according to claim 1,
Wherein the touch panel is fabricated in a rectangular or polygonal shape having a square contact surface of 5 * 5 mm (± 0.5 mm) to 6 * 6 mm (± 0.5 mm), or a contact area corresponding to the square contact surface, .
The touch panel according to claim 1,
Wherein the touch panel is fabricated in a rectangular or polygonal shape having a square contact surface of 4 * 4 mm (± 0.5 mm) to 6 * 6 mm (± 0.5 mm), or a contact area corresponding to the square contact surface, .
The touch panel according to claim 1,
Wherein the touch panel is fabricated in a rectangular or polygonal shape having a square contact surface of 3 * 3 mm (± 0.5 mm) to 6 * 6 mm (± 0.5 mm), or a contact area corresponding to the square contact surface, .
2. The method of claim 1,
And a geometric relationship that excludes a linear arrangement structure in which three or more touch portions among the plurality of touch portions are arranged in a line.
2. The method of claim 1,
And an arbitrary layout structure in which three or more touch units among the plurality of touch units are not arranged in a line.
The method according to claim 1,
The geometric relationship may be such that at least one touch portion among a plurality of touch portions disposed in one side region of a frame portion provided in different touch modules of the same type is disposed at another position spaced apart from the minimum identification distance of at least 3.5 mm, And a geometric relationship in which the geometric relationships of the touch parts provided in the touch module do not overlap,
Wherein the minimum identification distance includes a center distance of a comparison target touch unit provided on one side of a frame part of another touch module of the same type.
The method according to claim 1,
Wherein the geometric relationship includes a geometric relationship in which a plurality of touch portions disposed in the frame portion are disposed apart from a minimum distinguishing recognition distance of 7.5 mm,
Wherein the minimum distinction recognition distance includes a distance between contact surface outlines of a touch portion contacting the electrostatic touch screen.
2. The method of claim 1,
Wherein one of the touch regions is divided into a plurality of divided regions of the number smaller than the number of the touch portions and one touch portion is disposed at a predetermined calculated position on each of the divided regions, And a geometric relationship for disposing one touch portion.

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