KR20140133274A - Apparatus for sensing touch and method for sensing touch - Google Patents

Abstract

Provided are a touch sensing device and a touch sensing method. The touch sensing device of the present invention includes: a main electrode unit composed of an operating electrode and a first sensing electrode arranged apart from the operating electrode; an auxiliary electrode unit composed of a second sensing electrode arranged apart from the main electrode unit; and a controller for determining if a touch input is generated based on a first sensing signal acquired from the first sensing electrode and a second sensing signal acquired from the second sensing signal.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a touch sensing apparatus,

The present invention relates to a touch sensing apparatus and a touch sensing method.

A touch sensing technology that detects the touch of a user's finger or other device and converts it into a suitable electric signal and outputs it is applied to various electronic devices and used as various input means.

The touch sensing technology may be applied to a lap top computer as a means for controlling movement of a cursor in place of a mouse, and may be used as an input means for directly selecting an icon or menu displayed on the screen in combination with a display device .

In recent years, a touch sensing device using a touch sensing technology, such as a touch key, has been used as a means of replacing a mechanical button. That is, the above-described touch sensing device is used as a keypad or a switch of an MP3, a portable terminal, a TV, a monitor, a tablet PC, and the like. It is replacing.

As a technique applied to the above-described touch sensing device, a mutual capacitance method exists. The reciprocal capacitance method is a method of detecting whether a touch is generated by detecting a decrease in the amount of electric charge generated by an object (for example, a user's finger, a stylus pen, etc.) in proximity to or in contact with the touch sensing device in a sensing electrode electrostatically coupled to the driving electrode Technology.

The degree of reduction of the charge amount may be different depending on the type of the touch input (for example, a finger touch input, a proximity touch input, a stylus pen touch input, and the like). Accordingly, there is a need to adjust the sensitivity of the touch sensing device according to the type of the touch input.

However, when setting the sensitivity based on any one type of touch input, a malfunction may occur in the touch input recognition process. For example, even when the touch input is not actually generated, the amount of charge is reduced on the sensing electrode when the user's finger or the like approaches the touch sensing device. When the sensitivity is set based on the stylus pen, There is a problem that it can be recognized that an input has occurred. In addition, there is a problem that when the sensitivity is set based on the finger touch input, it is recognized that the touch input is not actually generated although the touch input by the stylus pen actually occurs.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a touch sensing device and a touch sensing method with improved accuracy of touch input recognition.

It is another object of the present invention to provide a touch sensing device and a touch sensing method in which the accuracy of touch input recognition is improved with respect to touch inputs of different kinds.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method of manufacturing the same.

According to an aspect of the present invention, there is provided a touch sensing apparatus including a main electrode unit including a driving electrode and a first sensing electrode spaced apart from the driving electrode, a second electrode spaced apart from the main electrode unit, And a control unit for determining whether or not the touch input is generated based on the auxiliary electrode unit including the sensing electrode, the first sensing signal acquired from the first sensing electrode, and the second sensing signal acquired from the second sensing electrode .

According to an aspect of the present invention, there is provided a touch sensing method for acquiring a first sensing signal and a second sensing signal from a first sensing electrode and a second sensing electrode in response to a touch input, Determining the type of the touch input based on the intensity of the sensing signal and the predetermined threshold value for each touch input type and determining whether the touch input is valid or not based on the intensity of the first sensing signal and the intensity of the second sensing signal And the like.

According to another aspect of the present invention, there is provided a touch sensing method for sensing a first sensing signal and a second sensing signal from a first sensing electrode and a second sensing electrode in response to a touch input, The type of the touch input is determined on the basis of the intensity of the sensing signal, the intensity of the second sensing signal, and the sensitivity range of each predetermined type of the touch input, and based on the intensity of the first sensing signal and the intensity of the second sensing signal, And determining whether the touch input is valid or not.

According to another aspect of the present invention, there is provided a touch sensing method for acquiring a first sensing signal and a second sensing signal from a first sensing electrode and a second sensing electrode in response to a touch input, 1 detection signal based on the intensity of the first sensing signal and the intensity of the second sensing signal when the intensity of the first sensing signal is greater than or equal to the threshold value, Determining whether the touch input is valid or not.

The details of other embodiments are included in the detailed description and drawings.

The embodiments of the present invention have at least the following effects.

There is an advantage that the recognition accuracy of the touch input can be improved.

In addition, there is an advantage that it is possible to distinguish a touch input type, an advantage of judging whether each type of touch input is effective or not, and the recognition accuracy of each type of touch input.

The effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the specification.

1 is a schematic view showing a planar structure of a touch sensing apparatus according to an embodiment of the present invention.
2 is a schematic view illustrating a cross-sectional structure of the touch sensing apparatus shown in FIG.
FIG. 3 illustrates an example of a touch input occurring in a touch sensing apparatus according to an embodiment of the present invention. Referring to FIG.
FIG. 4 is a table exemplarily showing sensed signal intensities obtained by the first sensing electrode and the second sensing electrode when the touch input shown in FIG. 3 is generated.
5 to 10 are tables for explaining an operation of the touch sensing apparatus according to an embodiment of the present invention.
11 and 12 are tables for explaining another embodiment of the operation of the touch sensing apparatus according to the present invention.
13 to 18 are tables for explaining another embodiment of the operation of the touch sensing apparatus according to the present invention.
FIG. 19 is a flowchart illustrating a touch sensing method according to an embodiment of the present invention.
20 is a flowchart illustrating a touch sensing method according to another embodiment of the present invention.
21 is a flowchart illustrating a touch sensing method according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification. The dimensions and relative sizes of layers and regions in the figures may be exaggerated for clarity of illustration.

Although the first, second, etc. are used to describe various elements or operations, it goes without saying that these elements are not limited by these terms. These terms are only used to distinguish one element or one operation from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that the terms "comprises" and / or "comprising" used in the specification are intended to be inclusive in a manner similar to the components, steps, operations, and / Or additions.

The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

It is to be understood that when an element or layer is referred to as being "on" or " on "of another element or layer, All included.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 schematically shows a planar structure of a touch sensing apparatus according to an embodiment of the present invention. FIG. 2 schematically shows a cross-sectional structure taken along a direction A1-A2 of the touch sensing apparatus shown in FIG. 1 will be. 1 and 2, the touch sensing apparatus 10 may include a main electrode unit 200, an auxiliary electrode unit 300, and a control unit 500 formed on a substrate 100 and a substrate 100 And may further include a storage unit 700.

The substrate 100 may be an insulating substrate. For example, a plastic substrate, a glass substrate, a quartz substrate, or the like can be applied to the insulating substrate. Furthermore, the substrate 100 may be a flexible substrate. For example, the substrate 110 may be formed of a thin film glass, a polyimide (PI), a polycarbonate (Pc), a polyethyleneterephtalate (PET), a polyethersulfone (PES), a polystyrene resin, a metal foil or a fiber reinforced plastic (FRP) But is not limited thereto.

The substrate 100 may have an aperture region 110 therein. The opening region 110 is an area for transmitting light emitted from a backlight (not shown), which may be provided on the back surface side of the substrate 100. The opening region 110 may be formed in a groove formed in the substrate 100 as shown in FIG. 2, or may not be shown in the drawing. However, when the substrate 100 is made of a translucent material, Or may be the light transmitting region itself defined in < RTI ID = 0.0 >

There is no limitation on the planar shape of the opening region 110. In FIG. 1, the open area 110 has a circular shape. However, the open area 110 may be formed in various shapes such as an ellipse, a triangle, a rectangle, and a polygon. The width D1 of the opening region 110 may be 4 mm to 10 mm, but the present invention is not limited thereto.

The main electrode unit 200 and the auxiliary electrode unit 300 may be disposed on the substrate 100.

The main electrode unit 200 includes a first sensing electrode 210 and a driving electrode 230. The main electrode unit 200 includes connection wires 250 and 250 connecting the first sensing electrode 210 and the driving electrode 230 to the controller 500, 270).

The first sensing electrode 210 is an electrode for sensing a change in mutual capacitance due to a touch input, and may be disposed outside the opening region 110 to cover the opening region 110. For example, when the opening area 110 has a circular shape, the first sensing electrode 210 may be configured to surround the outside of the opening area 110, and the planar shape of the first sensing electrode 210 may be It can be circular. The planar shape of the first sensing electrode 210 may be the same as the planar shape of the opening region 110, or may have a different shape.

The driving electrode 230 is an electrode to which a driving signal (e.g., a driving voltage) is applied, and may be disposed apart from the first sensing electrode 210. More specifically, the driving electrode 230 may be disposed outside the first sensing electrode 210 to cover the first sensing electrode 210 and may include a distance D2 between the driving electrode 230 and the first sensing electrode 210 May be constant over the entire driving electrode 230. [ For example, when the first sensing electrode 210 has a circular shape as shown in FIG. 1, the planar shape of the driving electrode 230 may be circular, and the first sensing electrode 210 and the driving electrode 230 May be concentric circles.

Although not shown in the drawing, the driving electrode 230 may surround the outside of the opening region 110, and the first sensing electrode 210 may be disposed outside the driving electrode 230 to surround the driving electrode 230 . That is, the positions of the first sensing electrode 210 and the driving electrode 230 shown in FIG. 1 may be mutually changed. Hereinafter, the first sensing electrode 210 is described as being located inside the driving electrode 230, but the present invention is not limited thereto.

The distance D2 between the driving electrode 230 and the first sensing electrode 210 may be 0.5 mm to 1.5 mm, but the present invention is not limited thereto.

The auxiliary electrode unit 300 may include a second sensing electrode 310 and may further include a connection wiring 350 connecting the second sensing electrode 310 and the control unit 500.

The second sensing electrode 310 senses a change in mutual capacitance due to touch input, and may be spaced apart from the driving electrode 230. The second sensing electrode 310 may be disposed outside the driving electrode 230 to cover the driving electrode 230 and the separation distance D3 between the driving electrode 230 and the second sensing electrode 310 may be And may be constant over the entire second sensing electrode 310. For example, when the planar shape of the driving electrode 230 is circular as shown in FIG. 1, the planar shape of the second sensing electrode 310 may be circular. Accordingly, the second sensing electrode 310, The planar shape of the protrusions 230 may be concentric.

The distance D3 between the driving electrode 230 and the second sensing electrode 210 may be 0.5 mm to 1.5 mm. However, the present invention is not limited thereto, and the design can be appropriately changed if necessary.

The first sensing electrode 210, the second sensing electrode 310, and the driving electrode may be formed of a conductive material. As the conductive material, copper (Cu), copper alloy (Cu alloy), or the like can be applied, but the present invention is not limited thereto. That is, the conductive material is not limited. For example, transparent conductive materials such as oxides such as indium tin oxide (ITO), indium zinc oxide (IZO) and zinc oxide (ZO) (Graphine), silver nanowire (SNW), etc., can be applied. The first sensing electrode 210, the driving electrode 230, and the second sensing electrode 310 may be made of the same material, or at least one of them may be made of a different material.

The first sensing electrode 210, the driving electrode 230, and the second sensing electrode 310 may be formed in a single layer on the same plane. For example, the first sensing electrode 210, the driving electrode 230, and the second sensing electrode 310 may be formed on the substrate 100 as shown in FIG. 2, thereby being located on the same plane.

The control unit 500 controls the overall driving of the touch sensing device 10 and may receive a sensing signal from the sensing electrodes 210 and 310 by applying a driving voltage to the driving electrode 510, for example. In particular, the controller 500 determines whether or not the touch input is based on the first sensing signal obtained from the first sensing electrode 210 and the second sensing signal obtained from the second sensing electrode 310 in response to one touch input, , For example, it is possible to determine whether the type of the touch input is valid or whether the touch input is valid. That is, the touch sensing apparatus 10 according to the present embodiment performs the determination regarding the touch input based on at least two sensing signals, and thus has an advantage of improving the accuracy of the touch input. The specific operation of the control unit 500 will be described later.

The storage unit 700 stores information necessary for determining whether or not a touch input is generated. The storage unit 700 may store threshold information, threshold information for each touch input type, sensitivity range for each touch input type, and the like.

The control unit 500 and the storage unit 700 may be integrally formed in one configuration (e.g., a touch chip), but the present invention is not limited thereto and may be a separate configuration separated from each other.

The first sensing signal and the second sensing signal acquired by the control unit 500 may be based on a mutual capacitance change.

2, when a driving signal is applied to the driving electrode 230, a driving voltage is applied between the driving electrode 230 and the first sensing electrode 210, and between the driving electrode 230 and the second sensing electrode 310, Capacitive coupling can occur. Fringing electric lines may be formed between the driving electrode 230 and the first sensing electrode 210 and between the driving electrode 230 and the second sensing electrode 310. At this time, when an object 900 such as a finger or a stylus pen approaches or touches the touch sensing device 10, some of the fringing field lines are blocked by the object 900 so that the first sensing electrode 210, And / or the amount of charge coupled to the second sensing electrode 310 decreases. That is, the declining of the mutual capacitance is sensed by the first sensing electrode 210 and / or the second sensing electrode 310, and the control unit 500 controls the first sensing electrode 210 and the second sensing electrode 310 The first sensing signal and the second sensing signal are obtained based on the generated mutual capacitance change.

Referring again to FIG. 1, the touch sensing apparatus 10 of the present invention can perform a determination on a touch input by various operations. Hereinafter, the operation of the touch sensing apparatus 10 will be described for each embodiment.

1. On the operation of the touch sensing device Korea Day Example

The storage unit 700 may store a threshold value for each type of touch input. For example, the storage unit 700 may store a pen touch threshold value (or 'TH1') for a pen touch input (e.g., a stylus pen touch input), a proximity touch threshold value (or 'TH2' And a finger touch threshold value (or ' TH3 ') for the input. And the thresholds may be in a relationship of TH1 < TH2 < TH3.

The pen touch threshold value (or 'TH1') means a minimum sensed signal strength for recognizing as a valid pen touch input. The proximity touch threshold value (or 'TH2') means a minimum sensed signal strength Quot ;, respectively. Further, the finger touch threshold value (or 'TH3') means a minimum sensing signal intensity for recognizing as a valid finger touch input.

When a touch input is generated, the controller 500 may acquire a first sensing signal from the first sensing electrode 210 and a second sensing signal from the second sensing electrode 310. The controller 500 may determine the type of the touch input by comparing the intensity of the first sensing signal with a threshold value for each type of touch input previously stored in the storage unit 700.

For example, when the storage unit 700 stores the pen touch threshold value and the proximity touch threshold value, the control unit 500 determines whether the intensity of the first sensing signal is less than the pen touch threshold value, It is possible to determine whether it is less than the threshold value or not, or whether it is not less than the proximity touch threshold value. If it is determined that the intensity of the first sensing signal is less than the pen touch threshold value, the controller 500 may determine that the touch input is an invalid input. Further, if it is determined that the intensity of the first sensing signal is lower than the pen touch threshold value and the proximity touch threshold value, the touch input may be determined as the pen touch input. If it is determined that the intensity of the first sensing signal is greater than or equal to the proximity touch threshold value, the touch input may be determined as the proximity touch input.

Or if the storage unit 700 stores the proximity touch threshold value and the finger touch threshold value, the control unit 500 determines whether the intensity of the first sensing signal is less than the proximity touch threshold value, Value or a finger touch threshold value or more. If it is determined that the intensity of the first sensing signal is less than the proximity threshold, the controller 500 may determine that the touch input is an invalid input. If it is determined that the intensity of the first sensing signal is lower than the proximity threshold threshold value, the touch input may be determined as the proximity touch input. If it is determined that the intensity of the first sensing signal is equal to or greater than the threshold value of the finger touch, the touch input may be determined as the finger touch input.

Or if the storage unit 700 stores the pen touch threshold value and the finger touch threshold value, the control unit 500 determines whether the intensity of the first sensing signal is less than the pen touch threshold value or greater than the pen touch threshold value, Value or a finger touch threshold value or more. If it is determined that the intensity of the first sensing signal is less than the pen touch threshold value, the controller 500 may determine that the touch input is an invalid input. If it is determined that the intensity of the first sensing signal is lower than the pen touch threshold value, the touch input may be determined as the pen touch input. If it is determined that the intensity of the first sensing signal is equal to or greater than the threshold value of the finger touch, the touch input may be determined as the finger touch input.

Alternatively, if the storage unit 700 stores both the pen touch threshold value, the proximity touch threshold value, and the finger touch threshold value, the control unit 500 determines whether the intensity of the first sensing signal is less than the pen touch threshold value, Threshold value, less than the proximity touch threshold value, the proximity-touch threshold value, less than the finger-touch threshold value, or the finger-touch threshold value or more. If it is determined that the intensity of the first sensing signal is less than the pen touch threshold value, the controller 500 may determine that the touch input is an invalid input. Further, if it is determined that the intensity of the first sensing signal is lower than the pen touch threshold value and the proximity touch threshold value, the touch input may be determined as the pen touch input. If it is determined that the intensity of the first sensing signal is less than the proximity threshold threshold value, the touch input may be determined as the proximity touch input. If it is determined that the intensity of the first sensing signal is greater than or equal to the threshold value of the finger touch, the touch input may be determined as the finger touch input.

That is, according to the present embodiment, there is an advantage that the type of the touch input can be distinguished. In addition, when the touch input device of the present invention is applied to a portable terminal or the like, various inputs can be used, which also has the advantage of improving convenience for user's terminal operation.

Meanwhile, the controller 500 may further determine whether the touch input is valid based on the first sensing signal intensity and the second sensing signal intensity. For example, the controller 500 determines that the touch input is a valid touch input when the ratio of the second sensed signal intensity to the first sensed signal intensity is equal to or greater than a preset value (hereinafter referred to as a 'reference value' or 'R1' . For example, assuming that the determination reference value is 3, when the intensity of the first sensing signal is 30 and the intensity of the second sensing signal is 15, the ratio between signals is 2, which is smaller than the determination reference value. The touch input can be judged as an invalid input. Meanwhile, when the intensity of the first sensing signal is 30 and the intensity of the second sensing signal is 10, the signal-to-signal ratio value is 3, which is equal to or greater than the determination reference value, and the controller 500 determines that the touch input is a valid touch input It can be judged.

According to this embodiment, the second sensing signal 310 may be further disposed to further acquire the second sensing signal, and the validity of the touch input may be determined based on the first sensing signal intensity and the second sensing signal intensity An advantage that it is possible to prevent an invalid touch input from being recognized as compared with a case where only the first sensing electrode 210 is arranged, and an advantage that the accuracy of the touch input can be improved.

In the description of the present embodiment, it is described that the controller 500 further determines whether the touch input is valid after determining the type of the touch input, but this is only one example. That is, the controller 500 can determine only the type of the touch input, and can determine the type of the touch input and the validity of the touch input at the same time. In addition, the controller 500 may determine whether the touch input is valid or not and then determine the type of the touch input. Hereinafter, for convenience of explanation, it is assumed that the controller 500 further determines whether the touch input is valid after determining the type of the touch input.

2. Different for the operation of the touch sensing device Example

The storage unit 700 may store a single threshold value (or 'TH0') regardless of the type of touch input. The single threshold value (or 'TH0') means the minimum sensing signal strength to be recognized as a valid touch input.

When a touch input is generated, the controller 500 may acquire a first sensing signal from the first sensing electrode 210 and a second sensing signal from the second sensing electrode 310. The control unit 500 may compare the intensity of the first sensing signal with a predetermined single threshold value stored in the storage unit 700.

Specifically, the controller 500 may determine whether the intensity of the first sensing signal is less than or equal to a single threshold value. If it is determined that the intensity of the first sensing signal is less than the single threshold value, the controller 500 may determine that the touch input is an invalid input.

If it is determined that the intensity of the first sensing signal is greater than or equal to the single threshold value, the controller 500 may further determine whether the touch input is valid based on the first sensing signal intensity and the second sensing signal intensity. That is, the controller 500 can determine whether the touch input is valid by additionally considering the intensity of the second sensing signal only when the intensity of the first sensing signal is greater than or equal to the single threshold value. For example, the controller 500 may determine that the touch input is a valid touch input when the ratio of the second sensing signal intensity to the first sensing signal intensity is equal to or greater than a preset value (hereinafter referred to as a 'reference value').

For example, assuming that the single threshold value is 20 and the determination reference value is 3, if the intensity of the first sensing signal is 15 and the intensity of the second sensing signal is 5, The controller 500 determines that the touch input is an invalid input.

Alternatively, when the intensity of the first sensing signal is 30 and the intensity of the second sensing signal is 15, the first sensing signal intensity is greater than or equal to the single threshold value, and the controller 500 compares the first sensing signal intensity and the second sensing signal intensity Quot; 2 &quot; The control unit 500 determines that the touch input is an invalid touch input because the calculated ratio value is less than the determination reference value.

If the first sensing signal intensity is 30 and the second sensing signal intensity is 10, the first sensing signal intensity is greater than or equal to the single threshold value. In this case, the controller 500 determines that the first sensing signal intensity is between the first sensing signal intensity and the second sensing signal intensity And calculates the ratio value 3. The control unit 500 determines that the touch input is a valid touch input when the calculated ratio value is equal to or greater than the determination reference value.

According to this embodiment, the second sensing signal 310 may be further disposed to further acquire the second sensing signal, and the validity of the touch input may be determined based on the first sensing signal intensity and the second sensing signal intensity An advantage that it is possible to prevent an invalid touch input from being recognized as compared with a case where only the first sensing electrode 210 is arranged, and an advantage that the accuracy of the touch input can be improved. It also has the added benefit of improving the accuracy of the touch input regardless of the type of touch input.

3. Another action on the operation of the touch sensing device Example

The storage unit 700 may store the first sensitivity range and the second sensitivity range for each type of touch input. For example, the storage unit 700 stores a first pen touch sensitivity range (or 'L11') and a second pen touch sensitivity range (or 'L12') for the pen touch input, a first proximity touch sensitivity range (Or 'L21') and the second finger touch sensitivity range (or 'L32') for the finger touch input, or the second proximity touch sensitivity range (or L22 ' The sensitivity range for at least two touch inputs can be stored.

When a touch input is generated, the controller 500 may acquire a first sensing signal from the first sensing electrode 210 and a second sensing signal from the second sensing electrode 310. Then, the control unit 500 compares the intensity of the first sensing signal and the intensity of the second sensing signal with the first sensitivity range and the second sensitivity range for each kind of touch input stored in the storage unit 700 to determine the type of the touch input can do.

For example, the storage unit 700 stores the first pen touch sensitivity range (or 'L11') and the second pen touch sensitivity range (or 'L12') for the pen touch input, the first proximity touch sensitivity range (Or 'L21') and the second proximity touch sensitivity range (or 'L22'), the controller 500 determines the type of the touch input based on the first sensing signal intensity and the second sensing signal intensity can do. Specifically, the controller 500 determines whether the intensity of the first sensing signal has a value within the first pen touch sensitivity range (or 'L11') and the intensity of the second sensing signal is within the second pen touch sensitivity range (or 'L12' The touch input may be determined as a pen touch input. That is, when the intensity of the first sensing signal and the intensity of the second sensing signal all fall within the sensitivity range for the preset pen touch input, the touch input can be determined as the pen touch input.

If it is determined that the intensity of the first sensing signal has a value within the first proximity touch sensitivity range (or 'L21') and the intensity of the second sensing signal has a value within the second proximity touch sensitivity range (or 'L21' The touch input may be determined as a proximity touch input. That is, when the intensity of the first sensing signal and the intensity of the second sensing signal all fall within the sensitivity range for the preset pen touch input, the touch input can be determined as the pen touch input.

(Or 'L11') and the second pen touch sensitivity range (or 'L12') with respect to the pen touch input, at least one of the intensity of the first sensing signal and the intensity of the second sensing signal, (Or 'L21') and the second proximity touch sensitivity range (or 'L22') for the proximity touch input, the controller 500 determines that the touch The input can be determined as an invalid touch input.

The storage 700 stores the first proximity touch sensitivity range (or 'L21') and the second proximity touch sensitivity range (or 'L22') for the proximity touch input, the first finger touch sensitivity range 'L31') and the second finger touch sensitivity range (or 'L32'). That is, when the intensity of the first sensing signal is within the first proximity touch sensitivity range (or 'L21') and the intensity of the second sensing signal is within the second proximity touch sensitivity range (or 'L21' The touch input can be determined as the proximity touch input. Further, when the intensity of the first sensing signal has a value within the first finger touch sensitivity range (or 'L31') and the intensity of the second sensing signal has a value within the second finger touch sensitivity range (or 'L31' The touch input may be determined as a finger touch input. If at least one of the intensity of the first sensing signal and the intensity of the second sensing signal corresponds to a first proximity touch sensitivity range (or 'L21') and a second proximity touch sensitivity range (or 'L22' (Or 'L31') and the second finger touch sensitivity range (or 'L32') with respect to the finger touch input, the control unit 500 determines whether or not the touch The input can be determined as an invalid touch input.

The storage unit 700 stores the first pen touch sensitivity range (or 'L11') and the second pen touch sensitivity range (or 'L12') for the pen touch input, the first finger touch sensitivity range (Or 'L11') for the pen touch input and the second pen touch sensitivity range (or 'L11') for the pen touch input, A second proximity touch sensitivity range (or 'L22'), a first proximity touch sensitivity range (or 'L21') and a second proximity touch sensitivity range (or ' The operation of the control unit 500 when both the finger touch sensitivity range (or 'L31') and the second finger touch sensitivity range (or 'L32') are stored is substantially the same as described above, and a description thereof will be omitted.

According to the present embodiment, the second sensing signal is additionally obtained, thereby being able to distinguish the type of the touch input. In addition, when the touch input device of the present invention is applied to a portable terminal or the like, various inputs can be used, which also has the advantage of improving convenience for user's terminal operation.

Meanwhile, the controller 500 may further determine whether the touch input is valid based on the first sensing signal strength and the second sensing signal strength, and the process of determining whether the touch input is valid may be performed according to an embodiment of the present invention, The same description as in the description of the other embodiments is omitted.

FIG. 3 illustrates an exemplary case where a touch input is generated in a touch sensing apparatus according to an exemplary embodiment of the present invention. FIG. 4 illustrates a case where a touch input illustrated in FIG. 1 sensed signal intensity and a second sensed signal intensity obtained from the second sensing electrode.

More specifically, as shown in FIG. 3, the distance from the center of the opening region 110 to the first sensing electrode 210 is 4 mm, and the distance between the center of the opening region 110 and the first sensing electrode 210 The spacing distance between the electrodes 230 is 1 mm and the distance between the driving electrode 230 and the second sensing electrode 310 is 1 mm and the distance between the first sensing electrode 210, the driving electrode 230, and the second sensing electrode 310 ) Is assumed to have an exemplary structure of concentric circles, and the first sensing signal and the second sensing signal are obtained by moving the object 900 in the arrow direction by 1 mm from the center of the opening region 110.

Fig. 4 is a diagram showing the relationship between the first sensing signal intensity I1 obtained by varying the diameter W of the object (900 in Fig. 3) from 2 mm to 8 mm in the touch sensing device 10 having the exemplary structure shown in Fig. 3, And the second sensing signal intensity (I2) by the distance from the center of the opening region (110). 4 is a graph showing the relationship between the distance from the center of the object (900 in FIG. 3) and the center of the opening area 110 and the size of the object (900 in FIG. 3) (I1) of the first sensing signal and the intensity (I2) of the second sensing signal. The phi shown in Fig. 4 corresponds to the unit of mm. For example, 2φ means a case where the diameter of the object (900 in FIG. 3) is 2 mm. Hereinafter, the operation of the touch sensing apparatus will be described in detail based on the table shown in FIG.

5 to 10 are tables for explaining an example of an operation according to an embodiment of the touch sensing apparatus according to the present invention.

For convenience of explanation, the pen touch threshold value (or 'TH1') is 20, the proximity touch threshold value (or 'TH2') for the proximity touch input is 80, It is assumed that the finger touch threshold value (or 'TH3') is 150 and the determination reference value (or 'R1') is stored as 3.

1 and 5 to 10, the controller 500 determines whether the intensity I1 of the first sensing signal is greater than or equal to the pen touch threshold value (or 'TH1') and the proximity touch threshold value 'TH2'), for example, when I1 is 20 or more and less than 80, it is determined that the corresponding touch input is a pen touch input. Among the 66 touch inputs shown in FIG. 5, the touch input recognized by the control unit 500 as the pen touch input corresponds to the highlighted portions, and the controller 500 determines that the portions that are not highlighted are the invalid touch inputs It can be judged.

If the calculated value is equal to or greater than the determination reference value, the control unit 500 can determine the touch input as a valid touch input. For example, the control unit 500 calculates a ratio value of I1 / I2, and determines that the input value is a valid touch input when the calculated value is equal to or greater than 3, which is a determination reference value, and determines that the input is invalid. The touch input recognized by the control unit 500 as a pen touch input and determined as not valid corresponds to a highlighted portion in FIG.

If the intensity I1 of the first sensing signal is greater than or equal to the proximity touch threshold value (or 'TH2') for the proximity touch input and less than the finger touch threshold value (or 'TH3') for the finger touch input, For example, I1 is 80 or more and less than 150, it is determined that the touch input is a proximity touch input. Among the 66 touch inputs shown in FIG. 7, the touch input recognized by the control unit 500 as the proximity touch input corresponds to the highlighted portions.

If the calculated value is equal to or greater than the determination reference value, the control unit 500 can determine the touch input as a valid touch input. For example, the control unit 500 calculates a ratio value of I1 / I2, and determines that the input value is a valid touch input when the calculated value is equal to or greater than 3, which is a determination reference value, and determines that the input is invalid. The control unit 500 recognizes the touch input as a proximity touch input, and the touch input determined as not valid corresponds to the highlighted portion in FIG.

If the intensity I1 of the first sensing signal is greater than or equal to the finger touch threshold value (or TH3) for the finger touch input, for example, I1 is equal to or greater than 150, the controller 500 determines that the touch input is a finger touch input . Among the 66 touch inputs shown in FIG. 9, the touch input recognized by the control unit 500 as the finger touch input corresponds to the highlighted portions.

If the calculated value is equal to or greater than the determination reference value, the control unit 500 can determine the touch input as a valid touch input. For example, the control unit 500 calculates a ratio value of I1 / I2, and determines that the input value is a valid touch input when the calculated value is equal to or greater than 3, which is a determination reference value, and determines that the input is invalid. The touch input recognized by the control unit 500 as a finger touch input and determined as not valid corresponds to a highlighted portion in FIG.

According to the present embodiment, it can be confirmed that more than half of the objects (900 in FIG. 3) are judged as valid touch inputs when they are located in the opening region (110 in FIG. 3) It can be confirmed that it is determined that the touch input is mostly invalid. The opening area (110 in FIG. 3) generally corresponds to an area where an icon or the like of the touch key is displayed. According to the present embodiment, only the touch input generated in the area where the icon is displayed can be determined as a valid touch input, Accordingly, it can be seen that there is an advantage that the accuracy of the touch input can be improved. In addition, even if a touch key or the like is touched by a thin object such as a stylus pen, it can be recognized that the touch key can be recognized as an accurate touch input.

11 and 12 are tables for explaining an example of an operation according to another embodiment of the touch sensing apparatus according to the present invention.

For convenience of explanation, it is assumed that a single threshold value (or 'TH0') is 20 and a judgment reference value (or 'R1') is stored as 3 in the storage unit 700 of FIG.

1, 11 and 12, when the intensity I1 of the first sensing signal is equal to or greater than a single threshold value (or TH0), the controller 500 determines whether the touch input is effective And performs judgment. Among the 66 touch inputs shown in FIG. 11, the touch input that the control unit 500 considers to be a validity determination corresponds to the highlighted portions, and the control unit 500 separately detects the non-highlighted portions It can be judged that the touch input is invalid without considering the signal strength.

Then, the controller 500 calculates a ratio value of I1 / I2 with respect to the highlighted touch inputs in FIG. 11, and when the calculated value is equal to or greater than the determination reference value, the controller 500 can determine that the touch input is a valid touch input. For example, the control unit 500 calculates a ratio value of I1 / I2, and determines that the input value is a valid touch input when the calculated value is equal to or greater than 3, which is a determination reference value, and determines that the input is invalid. The controller 500 performs a determination in consideration of the second sensing signal strength, and the touch input determined to be invalid as a result of the determination corresponds to the highlighted portion in FIG.

According to this embodiment, it is confirmed that more than half of the objects (900 in FIG. 3) are judged as effective touch inputs when they are located in the opening region (110 in FIG. 3) And when an object (900 in FIG. 3) is located in a portion other than the object, it can be confirmed that it is determined that the touch input is mostly invalid. That is, according to the present embodiment, it is possible to determine only the touch input generated in the area where the icon is displayed as a valid touch input, the advantage of improving the accuracy of the touch input, and the touch key, 5 to 10, there is an advantage that it can be recognized as a correctly valid touch input even if the touch is performed.

13 to 18 are tables for explaining an example of an operation according to another embodiment of the touch sensing apparatus according to the present invention.

The first pen touch sensitivity range (or 'L11') is less than 20 and less than 80, and the second pen touch sensitivity range (or 'L12') is less than 0 and less than 15 in the storage unit (700 in FIG. 1) The first proximity touch sensitivity range (or 'L21') is between 80 and less than 150. (Or L32 ') of the second finger touch sensitivity range (or' L22 ') is at least 15 and less than 75, the first finger touch sensitivity range (or' L31 ') is at least 150 and the second finger touch sensitivity range Are stored. Also, the storage unit (700 in FIG. 1) may further store the determination reference value (or 'R1'), and the corresponding value is assumed to be 3.

1 and 13 to 18, the controller 500 determines whether the intensity I1 of the first sensing signal is within the first pen touch sensitivity range (or 'L11') and the intensity I2 of the second sensing signal ) Is within the second fan touch sensitivity range (or 'L22'), for example, when I1 is 20 or more and less than 80, and I2 is 0 or more and less than 15, it is determined that the touch input is the pen touch input. Among the 66 touch inputs shown in FIG. 13, the touch input recognized by the control unit 500 as the pen touch input corresponds to the highlighted portions, and the control unit 500 determines that the non- It can be judged.

If the calculated value is equal to or greater than the determination reference value, the control unit 500 can determine the touch input as a valid touch input. For example, the control unit 500 calculates a ratio value of I1 / I2, and determines that the input value is a valid touch input when the calculated value is equal to or greater than 3, which is a determination reference value, and determines that the input is invalid. The touch input recognized by the control unit 500 as a pen touch input and determined as not valid corresponds to the highlighted portion in Fig.

The control unit 500 also determines whether the intensity I1 of the first sensing signal is within the first proximity touch sensitivity range (or L21 ') and the intensity I2 of the second sensing signal is within the second proximity touch sensitivity range (or' L22 '), for example, if I1 is less than 80 and less than 150 and I2 is less than 15 but less than 75, it can be determined that the touch input is a proximity touch input. Among the 66 touch inputs shown in FIG. 15, the touch input recognized by the control unit 500 as the proximity touch input corresponds to the highlighted portions.

If the calculated value is equal to or greater than the determination reference value, the control unit 500 can determine the touch input as a valid touch input. For example, the control unit 500 calculates a ratio value of I1 / I2, and determines that the input value is a valid touch input when the calculated value is equal to or greater than 3, which is a determination reference value, and determines that the input is invalid. The control unit 500 recognizes the touch input as a proximity touch input, and the touch input determined as not valid corresponds to the highlighted portion in FIG.

The control unit 500 determines whether the intensity I1 of the first sensing signal is within the first finger touch sensitivity range (or L31 ') and the intensity I2 of the second sensing signal is within the second finger touch sensitivity range (or' L32 '), that is, when I1 is 150 or more and I2 is 75 or more, it can be determined that the touch input is the finger touch input. Among the 66 touch inputs shown in FIG. 17, the touch input recognized by the control unit 500 as a finger touch input corresponds to the highlighted portions.

If the calculated value is equal to or greater than the determination reference value, the control unit 500 can determine the touch input as a valid touch input. For example, the control unit 500 calculates a ratio value of I1 / I2, and determines that the input value is a valid touch input when the calculated value is equal to or greater than 3, which is a determination reference value, and determines that the input is invalid. The touch input recognized by the control unit 500 as a finger touch input and determined as not valid corresponds to a highlighted portion in FIG.

In the description of the present embodiment, the control unit 500 further determines whether the touch input is valid by using the ratio value of I1 / I2. However, this is only one example. That is, the type of the touch input and the determination of the validity of the touch input can be simultaneously performed through one operation by properly changing the first sensing range and the second sensing range for each touch input. The contents of the advantages of the present embodiment are similar to those described in the description of Figs. 5 to 11, and a description thereof will be omitted.

FIG. 19 is a flowchart illustrating a touch sensing method according to an embodiment of the present invention.

Referring to FIG. 19, in the touch sensing method according to the present embodiment, a first sensing signal and a second sensing signal are acquired from a first sensing electrode and a second sensing electrode in response to a touch input (S110) The type of the touch input is determined on the basis of the intensity of the signal and the predetermined threshold value for each touch input type (S120, S130). Then, based on the intensity of the first sensing signal and the intensity of the second sensing signal, And judgments (S140, S150).

In the step S110 of acquiring the first sensing signal and the second sensing signal from the first sensing electrode and the second sensing electrode in response to the touch input, the first sensing signal acquisition and the second sensing signal acquisition are performed by the controller 500) is as described above in the description of FIG.

Steps S120 and S130 for determining the type of the touch input based on the intensity of the first sensing signal and the preset threshold value for each touch input type may be performed as follows.

If it is determined that the intensity of the first sensing signal is within the threshold value range for each touch input type (S120), if it is determined that the first sensing signal is within the threshold range of the specific touch input, (S130). If it is determined in step S120 that the first sensing signal does not belong to the threshold value range for each touch input type, it is determined that the corresponding touch input is an invalid touch input (S160).

For example, if the intensity of the first sensing signal is greater than or equal to a preset pen touch threshold value and less than a predetermined proximity touch threshold value, the touch input is determined as a pen touch input. If the intensity of the first sensing signal is equal to or greater than the proximity touch threshold value, The input can be judged as the proximity touch input. Also, when the intensity of the first sensing signal is less than the predetermined pen touch threshold value, the touch input can be determined as an invalid touch input.

Or if the intensity of the first sensing signal is greater than or equal to a preset proximity threshold and less than a preset finger touch threshold, the controller determines the touch input as proximity touch input and the intensity of the first sensing signal exceeds the finger touch threshold The touch input can be determined as a finger touch input. Also, if the intensity of the first sensing signal is less than the predetermined proximity touch threshold value, the touch input may be determined as an invalid touch input.

When the intensity of the first sensing signal is greater than or equal to a predetermined pen touch threshold value and less than a preset finger touch threshold value, the controller determines that the touch input is a pen touch input, The touch input may be determined as a finger touch input. Also, when the intensity of the first sensing signal is less than the predetermined pen touch threshold value, the touch input can be determined as an invalid touch input.

Further, if it is determined that the intensity of the first sensing signal is lower than the pen touch threshold value and the proximity touch threshold value, the touch input may be determined as the pen touch input. If it is determined that the intensity of the first sensing signal is less than the proximity threshold threshold value, the touch input may be determined as the proximity touch input. If it is determined that the intensity of the first sensing signal is greater than or equal to the threshold value of the finger touch, the touch input may be determined as the finger touch input. In addition, when the intensity of the first sensing signal is less than a predetermined pen touch threshold value, the touch input can be determined as an invalid touch input.

The process of determining whether the touch input is valid based on the intensity of the first sensing signal and the intensity of the second sensing signal (S140, S150) may be performed as follows.

It is determined whether the ratio value between the intensity of the first sensing signal and the intensity of the second sensing signal is equal to or greater than a predetermined value, that is, the determination reference value (S140). If the ratio between the signals is greater than or equal to the determination reference value, It is judged as a touch input (S150). If it is determined in step S140 that the signal-to-signal ratio value is less than the determination reference value, it is determined that the corresponding touch input is an invalid touch input (S160).

The detailed description of each step is substantially the same as that described above with reference to FIG. 1 and FIG. 5 to FIG. 10, and a detailed description thereof will be omitted.

20 is a flowchart illustrating a touch sensing method according to another embodiment of the present invention.

Referring to FIG. 20, a touch sensing method according to an embodiment of the present invention acquires a first sensing signal and a second sensing signal from a first sensing electrode and a second sensing electrode in response to a touch input (S210) If it is determined that the strength of the signal is equal to or greater than the threshold value (S220), if the strength of the first sensing signal is greater than or equal to the threshold value, (S230, S240). If it is determined in step S220 that the intensity of the first sensing signal is less than the threshold value, the touch input may be determined to be an invalid touch input in step S260.

A step S210 of obtaining the first sensing signal and the second sensing signal from the first sensing electrode and the second sensing electrode in response to the touch input and a step S220 of determining whether the intensity of the first sensing signal is equal to or greater than a threshold value Is substantially the same as that described above in the description of Figs. 1, 11 and 12, and is omitted.

The process of determining whether the touch input is valid based on the intensity of the first sensing signal and the intensity of the second sensing signal (S230, S240) may be performed as follows.

It is determined whether the ratio value between the intensity of the first sensing signal and the intensity of the second sensing signal is equal to or greater than a predetermined value, that is, the determination reference value or not (S230). If the ratio value between the signals is greater than or equal to the determination reference value, It can be judged as a touch input (S240). If it is determined in step S230 that the signal-to-signal ratio value is less than the determination reference value, the touch input may be determined to be an invalid touch input in step S260.

21 is a flowchart illustrating a touch sensing method according to another embodiment of the present invention.

21, in the touch sensing method according to the present embodiment, a first sensing signal and a second sensing signal are obtained from a first sensing electrode and a second sensing electrode in response to a touch input (S310) The type of the touch input is determined based on the intensity of the signal, the intensity of the second sensing signal, and the predetermined sensitivity range of each touch input type (S320 and S330). Then, based on the intensity of the first sensing signal and the intensity of the second sensing signal And determining whether the touch input is valid (S340, S350).

Steps S320 and S330 for determining the type of the touch input based on the intensity of the first sensing signal, the intensity of the second sensing signal, and the predetermined sensitivity range for each touch input type may be performed as follows.

It is determined whether the intensity of the first sensing signal and the intensity of the second sensing signal are within the first and second sensitivity ranges for each predetermined touch input type (S220). If the first sensing signal intensity and the second sensing signal intensity If it is within the first sensitivity range and the second sensitivity range of the specific touch input, it is determined that the touch input is the corresponding type (S330). If at least one of the first sensed signal strength and the second sensed signal strength does not fall within the sensitivity range of the specific touch input, the touch input is determined to be an invalid touch input (S160).

For example, when the intensity of the first sensing signal is within the predetermined first pen touch sensitivity range and the intensity of the second sensing signal is within the preset second pen touch sensitivity range, the touch input is determined as the pen touch input, If the intensity of the first sensing signal is within the predetermined first proximity touch sensitivity range and the intensity of the second sensing signal is within the preset second proximity touch sensitivity range, the touch input may be determined as the proximity touch input. If the intensity of the sensing signal is within the preset first finger touch sensitivity range and the intensity of the second sensing signal is within the predetermined second finger touch sensitivity range, the touch input is determined as the finger touch input, Is within the predetermined first proximity touch sensitivity range and the intensity of the second sensing signal is within the preset second proximity touch sensitivity range, the touch input is judged as the proximity touch input Can.

Or if the intensity of the first sensing signal is within the predetermined first finger touch sensitivity range and the intensity of the second sensing signal is within the range of the predetermined second finger touch sensitivity, When the intensity of the signal is within the predetermined first pen touch sensitivity range and the intensity of the second sensing signal is within the predetermined second pen touch sensitivity range, the touch input may be determined as the pen touch input.

The detailed description of each step is substantially the same as that described above in the description of Fig. 1 and Figs. 13 to 18, and is omitted.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10: Touch sensing device
110: opening area
200: main electrode portion
210: first sensing electrode
230: driving electrode
250, 270: Connection wiring
300: auxiliary electrode part
310: second sensing electrode
330: Connection wiring
500:
700:
900: object

Claims (32)

A main electrode unit including a driving electrode and a first sensing electrode spaced apart from the driving electrode;
An auxiliary electrode unit including a second sensing electrode spaced apart from the main electrode unit;
A control unit for performing a determination on a touch input based on a first sensing signal acquired from the first sensing electrode and a second sensing signal acquired from the second sensing electrode;
The touch sensing device comprising: The method according to claim 1,
Wherein the first sensing electrode is disposed outside the opening region to surround the opening region,
Wherein the driving electrode is disposed outside the first sensing electrode and surrounds the first sensing electrode. The method according to claim 1,
Wherein the driving electrode is disposed outside the opening region to surround the opening region,
Wherein the first sensing electrode is disposed outside the driving electrode and surrounds the driving electrode. The method according to claim 2 or 3,
Wherein a distance between the driving electrode and the first sensing electrode is constant. The method according to claim 2 or 3,
Wherein a distance between the driving electrode and the first sensing electrode
0.5 to 1.5 mm. The method according to claim 2 or 3,
The second sensing electrode
Wherein the main electrode part is spaced apart from the main electrode part to surround the main electrode part. The method according to claim 2 or 3,
Wherein a distance between the driving electrode and the second sensing electrode is constant. 3. The method of claim 2,
Wherein a distance between the driving electrode and the second sensing electrode
0.5 to 1.5 mm. The method according to claim 1,
The first sensing electrode and the second sensing electrode are connected to each other,
Wherein the touch sensing device is coplanar. The method according to claim 1,
Wherein the first sensing signal is obtained based on a mutual capacitance change sensed by the first sensing electrode,
Wherein the second sensing signal is obtained based on a mutual capacitance change sensed by the second sensing electrode. The method according to claim 1,
A storage unit for storing a pen touch threshold value for the pen touch input and a proximity touch threshold value for the proximity touch input; Lt; / RTI &gt;
Wherein,
And determines that the touch input is a pen touch input when the intensity of the first sensing signal is equal to or higher than the pen touch threshold value and less than the proximity touch threshold value,
And determines that the touch input is a proximity touch input when the intensity of the first sensing signal is equal to or greater than the proximity touch threshold value. 12. The method of claim 11,
The storage unit may further store a finger touch threshold value for the finger touch input,
Wherein,
When the intensity of the first sensing signal is equal to or greater than the proximity touch threshold value and less than the finger touch threshold value,
And determines the touch input as a finger touch input if the intensity of the first sensing signal is equal to or greater than the finger touch threshold value. 11. The method of claim 10,
A storage unit for storing a proximity touch threshold value for the proximity touch input and a finger touch threshold value for the finger touch input; Lt; / RTI &gt;
Wherein,
When the intensity of the first sensing signal is equal to or greater than the proximity touch threshold value and less than the finger touch threshold value,
And determines that the touch input is a finger touch input when the intensity of the first sensing signal is equal to or greater than the finger touch threshold value. 11. The method of claim 10,
A storage unit for storing a pen touch threshold value for the pen touch input and a finger touch threshold value for the finger touch input; Lt; / RTI &gt;
Wherein,
When the intensity of the first sensing signal is equal to or higher than the pen touch threshold value and less than the finger touch threshold value,
And determines that the touch input is a finger touch input when the intensity of the first sensing signal is equal to or greater than the finger touch threshold value. The method according to claim 1,
A storage unit for storing a threshold value; Further comprising:
Wherein,
And determines that the touch input is a valid touch input when the intensity of the first sensing signal is equal to or greater than a threshold value and the ratio of the second sensing signal intensity to the intensity of the first sensing signal is equal to or greater than a preset value. The method according to claim 1,
A second pen touch sensitivity range corresponding to the pen touch input, a first proximity touch sensitivity range corresponding to the proximity touch input, and a second proximity touch sensitivity range corresponding to the proximity touch input; Further comprising:
Wherein,
When the intensity of the first sensing signal is within the range of the first pen touch sensitivity and the intensity of the second sensing signal is within the range of the second pen touch touch sensitivity,
And determines the touch input as a proximity touch input when the intensity of the first sensing signal is within the first proximity touch sensitivity range and the intensity of the second sensing signal is within the second proximity touch sensitivity range. 17. The method of claim 16,
Wherein the storage unit further stores a first finger touch sensitivity range and a second finger touch sensitivity range corresponding to a finger touch input,
Wherein,
And determines the touch input as a finger touch input when the intensity of the first sensing signal is within the first finger touch sensitivity range and the intensity of the second sensing signal is within the second finger sensitivity range. The method according to claim 1,
A storage unit for storing a first proximity touch sensitivity range and a second proximity touch sensitivity range corresponding to a proximity touch input and a first finger touch sensitivity range and a second finger touch sensitivity range corresponding to a finger touch input; Further comprising:
Wherein,
If the intensity of the first sensing signal is within the range of the first finger touch sensitivity and the intensity of the second sensing signal is within the range of the second finger touch sensitivity,
And determines the touch input as a proximity touch input when the intensity of the first sensing signal is within the first proximity touch sensitivity range and the intensity of the second sensing signal is within the second proximity touch sensitivity range. The method according to claim 1,
A storage unit for storing a first finger touch sensitivity range corresponding to the finger touch input and a second finger touch sensitivity range and a first pen touch sensitivity range and a second pen touch sensitivity range corresponding to the pen touch input; Further comprising:
Wherein,
If the intensity of the first sensing signal is within the range of the first finger touch sensitivity and the intensity of the second sensing signal is within the range of the second finger touch sensitivity,
And determines the touch input as a pen touch input when the intensity of the first sensing signal is within the first pen touch sensitivity range and the intensity of the second sensing signal is within the second pen touch touch sensitivity range. The method according to any one of claims 11, 13, 14 and 17 to 19,
Wherein,
And determines that the touch input is a valid touch input when the ratio of the second sensing signal intensity to the intensity of the first sensing signal is equal to or greater than a preset value. Acquiring a first sensing signal and a second sensing signal from a first sensing electrode and a second sensing electrode in response to a touch input,
Determines the type of the touch input based on the intensity of the first sensing signal and the preset threshold value for each touch input type,
And determining whether the touch input is valid based on the intensity of the first sensing signal and the intensity of the second sensing signal. 22. The method of claim 21,
The determination of the type of the touch input may include:
If the intensity of the first sensing signal is greater than or equal to a predetermined pen touch threshold value and less than a predetermined proximity touch threshold value,
And determining that the touch input is a proximity touch input when the intensity of the first sensing signal is greater than or equal to the proximity touch threshold value. 23. The method of claim 22,
The determination of the type of the touch input may include:
And determines that the touch input is a proximity touch input when the intensity of the first sensing signal is greater than or equal to the proximity touch threshold value and less than a predetermined finger touch threshold value,
And determining that the touch input is a finger touch input when the intensity of the first sensing signal is equal to or greater than the finger touch threshold value. 22. The method of claim 21,
The determination of the type of the touch input may include:
When the intensity of the first sensing signal is greater than or equal to a preset proximity threshold value and less than a predetermined finger touch threshold value,
And determining the touch input as a finger touch input when the intensity of the first sensing signal is equal to or greater than the finger touch threshold value. 22. The method of claim 21,
The determination of the type of the touch input may include:
If the intensity of the first sensing signal is greater than or equal to a predetermined pen touch threshold value and less than a predetermined finger touch threshold value, the touch input is determined as a stylus pen touch input,
And determining the touch input as a finger touch input when the intensity of the first sensing signal is equal to or greater than the finger touch threshold value. Acquiring a first sensing signal and a second sensing signal from a first sensing electrode and a second sensing electrode in response to a touch input,
Determining whether the intensity of the first sensing signal is equal to or greater than a preset threshold value,
And determining whether the touch input is valid based on the intensity of the first sensing signal and the intensity of the second sensing signal when the intensity of the first sensing signal is greater than or equal to the threshold value. Acquiring a first sensing signal and a second sensing signal from a first sensing electrode and a second sensing electrode in response to a touch input,
Determines the type of the touch input based on the intensity of the first sensing signal, the intensity of the second sensing signal, and the sensitivity range for each predetermined touch input type,
And determining whether the touch input is valid based on the intensity of the first sensing signal and the intensity of the second sensing signal. 28. The method of claim 27,
The determination of the type of the touch input may include:
When the intensity of the first sensing signal is within a predetermined first pen touch sensitivity range and the intensity of the second sensing signal is within a preset second pen touch sensitivity range,
And determining that the touch input is a proximity touch input when the intensity of the first sensing signal is within a predetermined first proximity touch sensitivity range and the intensity of the second sensing signal is within a predetermined second proximity touch sensitivity range Touch sensing method. 29. The method of claim 28,
The determination of the type of the touch input may include:
And determining that the touch input is a finger touch input when the intensity of the first sensing signal is within a predetermined first finger touch sensitivity range and the intensity of the second sensing signal is within a predetermined second finger sensitivity range A touch sensing method. 28. The method of claim 27,
The determination of the type of the touch input may include:
If the intensity of the first sensing signal is within a preset first finger touch sensitivity range and the intensity of the second sensing signal is within a predetermined second finger touch sensitivity range,
And determining that the touch input is a proximity touch input when the intensity of the first sensing signal is within a predetermined first proximity touch sensitivity range and the intensity of the second sensing signal is within a predetermined second proximity touch sensitivity range Touch sensing method. 28. The method of claim 27,
The determination of the type of the touch input may include:
If the intensity of the first sensing signal is within a preset first finger touch sensitivity range and the intensity of the second sensing signal is within a predetermined second finger touch sensitivity range,
Determining that the touch input is a pen touch input when the intensity of the first sensing signal is within a predetermined first pen touch sensitivity range and the intensity of the second sensing signal is within a predetermined second pen touch sensitivity range A touch sensing method. 29. The method according to any one of claims 21, 26 and 27,
The determining whether the touch input is valid may comprise:
And determining that the touch input is a valid touch input when the ratio of the intensity of the second sensing signal to the intensity of the first sensing signal is equal to or greater than a preset value.

Images