KR20110035390A - Touch panel using a microwave and method of detecting touch location in on the same - Google Patents

Abstract

PURPOSE: A touch panel using microwave and location detecting method are provided to increase signal to noise ratio and to increase resolution while reducing the thickness of a touch panel. CONSTITUTION: A plurality of location sensors(802,804,806) is formed on a substrate(800). A first location sensor radiates a first RF signal. The first location sensor receives a reflected or scattered first RF signal. The first location sensor senses the variation of the first RF signal. A second location sensor radiates a second RF signal.

Description

Touch panel using microwave and method for detecting touched position in this case {TOUCH PANEL USING A MICROWAVE AND METHOD OF DETECTING TOUCH LOCATION IN ON THE SAME}

The present invention relates to a touch panel and a method for detecting a touched position therein, and more particularly, to a touch panel using antenna technology, in particular microwave, and a method for detecting a touched position therein.

As the touch panel, various methods such as a capacitance method, a resistive film method, an ultrasonic method, an infrared method, and a piezo effect method are used, and in particular, a resistive film method is used.

The resistive touch panel detects a touched position by detecting a change in resistance of a corresponding substrate when a finger or the like is touched, and generally includes a plurality of substrates, a plurality of conductive layers, spacers, and the like.

That is, the conventional touch panel includes many components, which inevitably causes the thickness of the touch panel to become thick, and as a result, resolution may decrease. In addition, the manufacturing cost of the touch panel could also increase.

SUMMARY OF THE INVENTION An object of the present invention is to provide a touch panel having a thin thickness and lowering a manufacturing cost and improving resolution and a method of detecting a touched position therein.

In order to achieve the above object, a touch panel according to an embodiment of the present invention is a substrate; And a first position sensor arranged on the substrate and emitting a first RF signal having a specific frequency. Here, the first position sensor detects a change in the radiated first RF signal.

According to another embodiment of the present invention, a touch panel includes a substrate; A first position sensor arranged on the substrate and emitting a first RF signal having a specific frequency; And a second position sensing sensor arranged on the substrate and receiving a first RF signal reflected or scattered by the touch object. Here, the touched position is detected by comparing the emitted first RF signal with the received first RF signal.

According to another embodiment of the present invention, a touch panel includes a substrate; And array antennas arranged on one side of the substrate and emitting RF signals. Here, the array antennas detect a change in the radiated RF signals.

According to another embodiment of the present invention, a touch panel includes a substrate; And a first position sensor arranged on the substrate to emit a first RF signal having a specific frequency. Here, the first position sensing sensor includes a first base member and a first conductor pattern arranged on the first base member.

According to an embodiment of the present invention, a method of detecting a touched position in a touch panel includes radiating an RF signal having a specific frequency; Comparing the emitted RF signal with an RF signal reflected or scattered by a touch object; And detecting a position touched by the touch object according to the comparison result.

Since the touch panel according to the present invention forms only thin conductor patterns on the substrate in order to generate microwaves, the thickness of the touch panel may be reduced, and as a result, the resolution may be improved.

In addition, since the number of components of the touch panel is small, the manufacturing cost may be lower than that of the conventional touch panel, and the signal to noise ratio (SNR) may be improved.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals are used for like elements in describing each drawing.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

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

1 is a perspective view illustrating a touch panel according to a first embodiment of the present invention, and FIG. 2 is a view illustrating a change in frequency characteristics of an RF signal reflected or scattered by a touch object according to an embodiment of the present invention. .

The touch panel of the present embodiment detects the touch position using antenna technology, and in particular, uses a microwave sensor using microwaves.

Referring to FIG. 1, the touch panel of this embodiment includes a substrate 100, a position sensor 102, and a controller 104.

The substrate 100 may be formed of, for example, glass, polyester (polyethylen terephthalate (PET), cyclic olefin polymer (Cyclic Olefin Polymer, COP), cyclic olefin copolymer (Cyclic Olefin Copolymer, COC), triacetyl cellulose (Tri) It may be made of ceramic or plastic materials such as Acetyl Cellulose (TAC).

In addition, the substrate 100 may be formed to have rigidity or to be flexible according to the type of material used.

The position sensor 102 is formed on the upper side of the substrate 100 as a microwave sensor, for example, and emits an RF signal having a specific frequency, in particular microwave, as shown in FIG. 1. In this case, the radiated RF signal is reflected or scattered, and the position sensor 102 receives and detects the reflected or scattered RF signal.

Subsequently, the position sensor 102 compares the radiated RF signal with the received RF signal, for example, compares a frequency or frequency maximum value, converts the comparison value into a voltage value or a phase value, and the like. The control unit 104 transmits. According to another exemplary embodiment of the present disclosure, the position sensor 102 may transmit only information on the received RF signal to the controller 104.

The controller 104 is electrically connected to the position sensor 102 and detects a position touched by the touch object 106 through a voltage value or a phase value transmitted from the position sensor 102. Alternatively, the controller 104 detects the touched position through the information on the RF signal transmitted from the position sensor 102.

In addition, the controller 104 also serves to power the position sensor 102 as described later.

Although not shown in FIG. 1, a ground plane may be further formed below the substrate 100. Here, the ground plane may be formed on the lower front surface of the substrate 100 or may be formed only in part.

Hereinafter, the process of detecting the touched position when the touch object 106 touches the substrate 100 will be described in detail.

The position sensor 102 continuously repeats the process of radiating an RF signal for a first time and receiving a reflected or scattered RF signal for a second time. Here, the second time means a time immediately after the first time.

Under such conditions, when a person performs an operation of touching a substrate 100 by using a touch object 106 such as a finger or a touch pen, the RF signal radiated from the position sensing sensor 102 is touch object 105. As a result of reflection or scattering, the frequency characteristic of the RF signal received by the position sensor 102 is changed as shown in FIG. 2. Specifically, while the maximum value of the resonant frequency of the radiated RF signal has a magnitude of about 45 Hz as shown in the frequency characteristic graphs 200 and S11, the resonant frequency of the received RF signal is reflected or scattered. The maximum value can be changed to about 19 Hz as can be seen in the frequency characteristic graph 202.

However, since the frequency characteristic of the received RF signal may change while a person moves to touch the touch panel, it may be mistakenly recognized that the person touches the touch panel. Therefore, the controller 104 may ignore the touch position acquired when the touch object 106 is moving, and detect only the touch position acquired as the desired touch position when stopping momentarily by touching.

The movement of the touch object 106 may be determined by additionally installing a separate motion sensor, for example. As another example, the frequency characteristics of the received RF signal when moving to touch may be databased to ignore the obtained touch position when moving. Of course, the motion of the touch object 106 may be detected through other methods in addition to the aforementioned method.

The position sensor 102 transmits information on the frequency characteristic (eg, frequency maximum value) of the received RF signal to the controller 104. According to one embodiment of the invention, the position sensor 102 compares the maximum value of the frequency of the received RF signal with the maximum value of the frequency of the radiated RF signal, the voltage value corresponding to the difference of the maximum value of the frequency Alternatively, the phase value may be transmitted to the controller 104.

The controller 104 may detect the position touched by the touch object 106 by comparing the information transmitted from the position sensor 102 with data in the database.

In short, the touch panel of the present embodiment emits the RF signal, in particular the microwave, and detects the touch position by detecting a change in the emitted RF signal. That is, the touch panel uses an antenna.

Compared with the conventional touch panels, the resistive touch panel, the capacitive touch panel, and the like require a plurality of conductive films, and the thickness of the touch panel is inevitably increased. However, in the touch panel of the present invention, since only the position sensor 102, in particular, the printed conductor pattern is formed on one side of the substrate 100, the thickness of the touch panel may be thin, and as a result, the resolution is improved. Can be.

In addition, since the position sensing sensor 102 may be implemented by printing a conductor pattern on the substrate 100 and the number of components is small, manufacturing cost may be lower than that of a conventional touch panel, and signal-to-noise ratio characteristics may be achieved. Ratio, SNR) can be improved.

3 is a perspective view illustrating a structure of a position sensor in a touch panel according to an embodiment of the present invention.

Referring to FIG. 3, the position detecting sensor 102 of the touch panel of the present exemplary embodiment may be formed on the substrate 100 by, for example, a printing method, and includes a feed point 300, a feed line 302, and a first Radiator 304 and second radiator 306.

The feed point 300 is a point at which a predetermined power is input from the control unit 104 or a power source. For example, an inner conductor of the cable may be connected to the feed point 300.

The feed line 302 transfers the electric power input from the feed point 300 as a conductor to the first radiator 304.

The first radiator 304 is supplied with power through the feed line 302 as a conductor.

The second radiator 306 is a conductor, but is physically spaced apart from the first radiator 304 as an conductor. That is, the second radiator 306 is fed from the first radiator 304 through a coupling method.

When power is supplied to the radiators 304 and 306, a predetermined radiation pattern is output from the radiators 304 and 306. Here, since it is important to sense the touch position only when the touch object 106 actually touches, the radiator is hardly output in the upper direction and the majority of the radiator is only in the front direction, that is, in the direction parallel to the substrate 100. It is preferable to output.

That is, the power supplied from the controller 104 is supplied to the radiators 304 and 306 of the position sensor 102, so that an RF signal having a specific frequency is output from the position sensor 102.

In the above, the position sensor 102 has been described as being implemented with two radiators 304 and 306, but it is sufficient if it is made of at least one radiator.

In addition, even when implemented with a plurality of radiators, the radiators are not connected in a coupling manner, and each radiator may be fed through a separate feed line.

That is, the position detecting sensor 102 may be modified into various structures as long as the position detecting sensor 102 may detect the reflected or scattered RF signal.

4 is a diagram illustrating various arrangements between a position sensor and a touch target according to an embodiment of the present invention, and FIG. 5 is a diagram illustrating a change in frequency characteristics of an RF signal according to the arrangement of FIG. 4. Here, the size of the substrate 100 was set to 55 mm × 3.2 mm × 0.4 mm, and the thicknesses of the patterns 300, 302, 304, and 306 included in the position sensor 102 were set to 0.4 mm.

4A to 4E, the touch object 106 is arranged at various distances from the position sensor 102.

Specifically, when the touch object 106 is spaced apart by 0 mm as shown in FIG. 4A (first case), and when it is spaced apart by 10 mm as shown in FIG. 4B (first case). ), 50 mm apart (second case), as shown in Figure 4 (C), 100 mm spaced (third case), as shown in Figure 4 (D), and Figure 4 (E) As shown in FIG. 5, the frequency characteristics of the received RF signal were measured by reflecting or scattering 50 mm apart from the case where the touch object 106 is arranged on the side of the position sensor 102 (a fifth case).

As shown in FIG. 5, when looking at the frequency graph 500 of the first case, the RF signal has a resonant frequency of about 3.35 kHz and a maximum value of about 18 kHz, and the frequency graph of the second case ( Referring to 502), the RF signal has a resonant frequency of about 3.25 kHz and a maximum value of about 17 kHz. Referring to the frequency graph 504 of the third case, the RF signal has a resonant frequency of about 3.2 kHz and It had a maximum value of about 11 Hz. In addition, referring to the frequency graph 504 of the fourth case, the corresponding RF signal has a resonant frequency of about 3.3 kHz and a maximum value of about 13 kHz, and the frequency graph 508 of the fifth case corresponds to The RF signal had a resonance frequency of about 3.3 Hz and a maximum value of about 10.5 Hz.

That is, it may be confirmed that the frequency or the maximum value of the RF signal received by the position sensing element 102 varies depending on the position of the touch object 106.

Accordingly, the controller 104 may database the frequency change according to the touch position and then detect the touch position by comparing the information about the RF signal provided from the position sensor 102 with the database data.

FIG. 6 is a diagram illustrating a touch panel according to a second embodiment of the present invention, and FIG. 7 is a diagram illustrating a graph of frequency characteristic change of the touch panel of FIG. 6.

Referring to FIG. 6, the touch panel of the present embodiment includes a substrate 600, a first position sensor 602, and a second position sensor 604. Although not shown, a ground plate may be further formed on the lower surface of the substrate 600.

That is, unlike in the first embodiment, in the present embodiment, a plurality of position sensing sensors 602 and 604 are formed on the substrate 600.

According to one embodiment of the invention, the respective position sensing sensors 602 and 604 have the same structure and are arranged in opposite positions as shown in FIG. 6, for example, from a feed line, from the feed line The first radiator may be directly fed, and the second radiator may be fed from the first radiator in a coupling manner. Of course, the position sensing sensors 602 and 604 may be implemented with different structures.

Referring to the operation of the position sensors 602 and 604 in FIG. 6, the first position sensor 602 emits a first RF signal for a first time and is reflected or scattered for a second time after the first time. Receive the first RF signal.

The second position sensor 604 then emits a second RF signal for a third time after the second time and receives a reflected or scattered second RF signal for a fourth time after the third time. Here, the second RF signal may or may not be the same signal as the first RF signal.

That is, the position sensing sensors 602 and 604 operate as both transmit antennas and receive antennas, respectively, and operate alternately instead of simultaneously.

Referring to the frequency characteristic graph 700 when the substrate 600 is not touched by the touch object 606 and the frequency characteristic graph 702 when the substrate 600 is touched in the touch panel having such a structure, FIG. As shown, it can be seen that the maximum value of the frequency of the received RF signal when touched is significantly smaller than the maximum value of the received RF signal when not touched.

That is, the position touched by the touch object 606 may be detected through the frequency characteristic change.

8 is a diagram schematically illustrating a structure of a touch panel according to a third embodiment of the present invention.

Referring to FIG. 8, the touch panel of the present embodiment includes a substrate 800, a first position sensor 802, a second position sensor 804, and a third position sensor 806. Although not shown, a ground plate may be further formed on the lower surface of the substrate 800.

That is, a plurality of position sensing sensors 802, 804, and 806 are formed on the substrate 800, and preferably, position sensing sensors 802, 804, and 806 are arranged on different sides on the substrate 800. .

When the position sensing sensors 802, 804, and 806 are arranged on the three sides, the touch position of the touch object can be detected more accurately than the first and second embodiments, which are arranged only on one or two sides. can do.

According to one embodiment of the invention, each of the position sensing sensors 802, 804 and 806 has the same structure as shown in Figure 8, for example, a feed line, the first radiator fed directly from the feed line And a second radiator fed from the first radiator in a coupling manner. Of course, the position sensing sensors 802, 804, and 806 may be implemented with different structures.

Referring to the operation of the position sensing sensors 802, 804 and 806 in FIG. 8, the first position sensing sensor 802 emits a first RF signal for a first time and reflects for a second time after the first time or Receive the scattered first RF signal.

The second position sensor 804 then emits a second RF signal for a third time after the second time and receives a reflected or scattered second RF signal for a fourth time after the third time.

Subsequently, the third position sensor 806 emits a third RF signal for a fifth time after the fourth time and receives a reflected or scattered third RF signal for a sixth time after the fifth time. Here, the first RF signal, the second RF signal and the third RF signal may all be the same signal, or at least one may be a different signal.

That is, the position sensing sensors 802, 804, and 806 operate alternately without simultaneously operating.

Summarizing the first to third embodiments, a position sensor is formed on at least one side of the substrate. Of course, position sensing sensors may be formed on all four sides of the substrate.

For accurate touch position detection, it is desirable that position sensing sensors be formed on at least three sides of the substrate.

9 illustrates a touch panel according to a fourth embodiment of the present invention.

Referring to FIG. 9, the touch panel of the present embodiment includes a substrate 900, a power feeding unit 902, and a plurality of position sensing sensors 904a to 904n, that is, array antennas. Here, n represents an integer of 2 or more, and although not shown, a ground plate may be further formed on the lower surface of the substrate 600. Serve

According to an embodiment of the present invention, a predetermined power may be input from an external end point of the power supply unit 902, for example, to the left end point of FIG. 9. In this case, since the array antennas 904a through 904n are all electrically connected to the feed section 902, power is supplied to the array antennas 904a through 904n, respectively, and as a result, the array antennas 904a through 904n. The predetermined radiation pattern is output from the. Here, the array antennas 904a through 904n may all operate simultaneously.

That is, unlike the first to third embodiments, array antennas 904a to 904n may be formed on one side of the substrate 900. Here, the array antennas 904a through 904n output specific RF signals, and at least one of the array antennas 904a through 904n acts as a receive antenna for receiving the reflected or scattered RF signal.

In the above, the array antennas 904a through 904n are fed through one feeder 902, but some or all of the array antennas 904a through 904n may be fed separately. That is, the feeding method is not particularly limited, but if the array antennas 904a to 904n are separately fed, since the configuration of the touch panel is complicated due to many cables, all the feeding parts are the same as shown in FIG. 9. It is preferred to be fed through 902.

In addition, in FIG. 9, the array antennas 904a to 904n are formed only on one side of the substrate 900, but the array antennas or one antenna may be formed on the other side.

10 is a diagram illustrating a structure of a touch panel according to a fifth embodiment of the present invention.

Referring to FIG. 10, the touch panel according to the present embodiment includes a substrate 1000, a first position sensor 1002, and a second position sensor 1004. Although not shown, a ground plate may be further formed on the lower surface of the substrate 1000.

The first position sensor 1002 operates as a transmit antenna that emits an RF signal.

The second position sensor 1004 operates as a reception antenna for receiving the reflected RF signal, and transmits information on the received RF signal to a controller (not shown). Here, the second position sensor 1004 may have the same structure as the first position sensor 1002 or may have a different structure.

That is, unlike the other embodiments in which one position sensing sensor operated as both a transmitting antenna and a receiving antenna, in this embodiment, the position detecting sensor 1002 serving as a transmitting antenna and the position detecting sensor 1004 serving as a receiving antenna are used. ) Exists separately. In this case, the position sensing sensors 1002 and 1004 may operate simultaneously.

Although the transmission and reception position detection sensors are shown as being formed only on one side of the substrate 1000, the transmission and reception position detection sensors may be formed on the other side.

11 illustrates a touch panel according to a sixth embodiment of the present invention.

Referring to FIG. 11A, the touch panel of the present embodiment may include a substrate 1100 and a position sensing sensor. Although not shown, a ground plate may be further formed on the lower surface of the substrate 110.

The position sensor may include a base member 1102 arranged on the substrate 100 and a conductor pattern 1104 formed on the base member 1102. Here, the conductor pattern 1104 may include a first radiator which is directly fed and a second radiator which is coupled and fed from the first radiator.

That is, unlike other embodiments in which the conductor pattern was formed directly on the substrate, in this embodiment, the conductor pattern 1104 is formed on the base member 1102 without being directly formed on the substrate 1100.

Although not shown above, other side surfaces of the substrate 1100 may further include a position sensing sensor having the above structure. Preferably, position sensing sensors may be formed on side surfaces of three or more sides of the substrate 1100.

According to another embodiment of the present invention, an area visible to the user, that is, an active area may exist as an empty space 1106 as shown in FIG. 11A. In such a structure, the conductor pattern may be formed directly on the substrate.

According to another embodiment of the present invention, as shown in FIG. 11B, the position sensor may be implemented as an array antenna.

According to another embodiment of the present invention, although not shown, the position sensor may be implemented in the form of a chip on the substrate 100.

The embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention. Should be considered to be within the scope of the following claims.

1 is a perspective view illustrating a touch panel according to a first embodiment of the present invention.

2 is a diagram illustrating a change in frequency characteristics of an RF signal reflected or scattered by a touch object according to an embodiment of the present invention.

3 is a perspective view illustrating a structure of a position sensor in a touch panel according to an embodiment of the present invention.

4 is a diagram illustrating various arrangements between a position sensor and a touch object according to an embodiment of the present invention.

FIG. 5 is a diagram illustrating a frequency characteristic change of an RF signal according to the arrangement of FIG. 4.

6 is a diagram illustrating a touch panel according to a second embodiment of the present invention.

FIG. 7 is a graph illustrating changes in frequency characteristics of the touch panel of FIG. 6.

8 is a diagram schematically illustrating a structure of a touch panel according to a third embodiment of the present invention.

9 illustrates a touch panel according to a fourth embodiment of the present invention.

10 is a diagram illustrating a structure of a touch panel according to a fifth embodiment of the present invention.

11 illustrates a touch panel according to a sixth embodiment of the present invention.

Claims (20)

Board; And A first position sensor arranged on the substrate and emitting a first RF signal having a specific frequency, And the first position detecting sensor detects a change in the radiated first RF signal. The RF sensor of claim 1, wherein the first position sensor is a microwave sensor that emits the first RF signal for a first time, and is reflected or scattered by a touch object for a second time after the first time. Receive the signal, And detecting the touched position through a frequency difference (frequency or frequency maximum value) between the emitted first RF signal and the reflected or scattered first RF signal. The method of claim 2, wherein the touch panel, It further includes a control unit, The first position sensing sensor converts the frequency difference into a voltage value or a phase value and transmits the difference to the controller, wherein the controller detects the touched position based on the transmitted voltage value or phase value. panel. The method of claim 1, wherein the first position sensor, A feed line formed on the substrate; A first radiator electrically connected to the feed line on the substrate; And A second radiator arranged spaced apart from the first radiator on the substrate, And the second radiator is fed from the first radiator through a coupling method. The method of claim 1, wherein the first position sensor is arranged on one side of the substrate, The touch panel, A second position sensing sensor arranged on the other side of the substrate; And Further comprising a third position sensing sensor arranged on another side of the substrate, And the second position detection sensor emits a second RF signal, and the third position detection sensor emits a third RF signal. The method of claim 5, wherein the first to third position sensors are implemented in the same structure, at least one of the first RF signal, the second RF signal and the third RF signal, characterized in that having a different frequency Touch panel. 6. The method of claim 5, wherein the first position sensing sensor emits the first RF signal for a first time and receives a reflected or scattered first RF signal for a second time, and the second position sensing sensor is a third Radiating the second RF signal for a time and receiving a reflected or scattered second RF signal for a fourth time, the third position sensing sensor emitting the third RF signal for a fifth time and reflecting for a sixth time Or receive a scattered third RF signal, The first to sixth times of the touch panel, characterized in that different times. Board; A first position sensor arranged on the substrate and emitting a first RF signal having a specific frequency; And A second position sensor arranged on the substrate and receiving a first RF signal reflected or scattered by a touch object, And comparing the radiated first RF signal with the received first RF signal to detect a touched position. The method of claim 8, wherein the touch panel, It further includes a control unit, The second position detecting sensor converts a frequency difference between the radiated first RF signal and the received first RF signal into a voltage value or a phase value, and transmits the converted voltage value or phase value to a controller. Touch panel. The method of claim 8, wherein at least one of the first position sensor and the second position sensor, A feed line formed on the substrate; A first radiator electrically connected to the feed line on the substrate; And A second radiator arranged spaced apart from the first radiator on the substrate, And the second radiator is fed from the first radiator through a coupling method. Board; And Array antennas arranged on one side of the substrate, the array antennas emitting RF signals, And the array antennas detect a change in the radiated RF signals. The method of claim 11, wherein at least one of the array antennas, A feed line formed on the substrate; A first radiator electrically connected to the feed line on the substrate; And A second radiator arranged spaced apart from the first radiator on the substrate, And the second radiator is fed from the first radiator through a coupling method. 12. The touch panel of claim 11, wherein some of the array antennas operate as receive antennas. The touch panel as set forth in claim 11, wherein all of the array antennas are fed through the same feeder or a cable. Board; And A first position sensor arranged on the substrate to emit a first RF signal having a specific frequency, And the first position sensing sensor comprises a first base member and a first conductor pattern arranged on the first base member. 16. The method of claim 15, wherein the first position sensing sensor emits the first RF signal for a first time and receives the reflected or scattered first radiation signal for a second time after the first time. Touch panel. The method of claim 15, wherein the touch panel, A second position sensor arranged on one surface of the substrate and receiving a reflected or scattered first radiation signal, And the second position sensing sensor includes a second base member and a second conductor pattern arranged over the second base member. The method of claim 15, wherein the first conductor pattern, A first radiator arranged on the first base member and directly fed; And A second radiator arranged spaced apart from the first radiator on the first base member, And the second radiator is fed from the first radiator through a coupling method. In the method for detecting the touched position on the touch panel, Radiating an RF signal having a specific frequency; Comparing the emitted RF signal with an RF signal reflected or scattered by a touch object; And And detecting the touched position by the touch object according to the comparison result. The touched position of claim 19, wherein the touched position is detected by comparing a frequency difference (frequency or frequency maximum value) between the radiated RF signal and the reflected or scattered RF signal, and the touched position is detected while the touch object is moving. And detecting the touched position only when the touch object is stopped without detecting the touched position.

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