Touch device and touch detection method thereof

Abstract

A touch device according to an exemplary embodiment includes a touch panel including a plurality of first touch electrodes extending in a first direction and arranged in a second direction crossing the first direction, and a plurality of second touch electrodes extending in the second direction and arranged in the first direction, and a touch driver applying a first driving signal for generating a resonance signal of a stylus to the touch panel in a first section, and receiving detection signals from all of the plurality of first touch electrodes and the plurality of second touch electrodes in a second section next to the first section.

Description

Technical Field

[0001] This invention relates to a touch device and a touch detection method for the same. More specifically, this invention relates to a touch device for detecting the touch of a stylus pen, and a touch detection method for the same. Background Technology

[0002] Touch sensors are found in various terminals such as mobile phones, smartphones, tablets, laptops, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), and navigation devices.

[0003] In such a terminal, the touch sensor can be located on the display panel that shows the image, or it can be set in an area of ​​the terminal body. When a user interacts with the terminal by touching the touch sensor, the terminal can provide the user with an intuitive user interface.

[0004] Users can use a stylus to perform complex touch inputs. Such a stylus can send and receive signals using electrical and / or magnetic methods via a touch sensor. Summary of the Invention

[0005] Technical issues

[0006] Exemplary embodiments provide a touch device capable of acquiring a touch location in a short time, and a touch detection method for the touch device.

[0007] Exemplary embodiments also provide a touch device capable of improving the signal-to-noise ratio of the effective signal used in touch coordinate detection, and a touch detection method for the touch device.

[0008] Technical solution

[0009] To achieve the above or other objectives, a touch device according to an exemplary embodiment includes: a touch panel comprising: a plurality of first touch electrodes extending in a first direction and arranged in a second direction intersecting the first direction, and a plurality of second touch electrodes extending in the second direction and arranged in the first direction; and a touch driver that applies a first driving signal for generating a resonant signal for a stylus to the touch panel in a first segment, and receives a detection signal from all of the plurality of first touch electrodes and the plurality of second touch electrodes in a second segment immediately following the first segment.

[0010] The touch driver can apply a drive signal in the second segment to at least one type of the plurality of first touch electrodes and the plurality of second touch electrodes, wherein the ratio of the disabled level segment to the enabled level segment in a repeating cycle is different from that of the first drive signal.

[0011] The touch driver can receive the detection signal in the second segment when the drive signal of at least one type applied to the plurality of first touch electrodes and the plurality of second touch electrodes is in the disabled level segment.

[0012] The touch driver can receive a detection signal from all of the plurality of second touch electrodes in the second section when the drive signal applied to the plurality of first touch electrodes has a disabled level, and can also receive a detection signal from all of the plurality of first touch electrodes in the second section when the drive signal applied to the plurality of second touch electrodes has a disabled level.

[0013] When the driving signal is applied only to the 2-1 section of the plurality of first touch electrodes in the second section and the driving signal has the disabled level, the touch driver can receive detection signals from all of the plurality of second touch electrodes; and when the driving signal is applied only to the 2-2 section of the plurality of second touch electrodes in the second section and the driving signal has the disabled level, the touch driver can receive detection signals from all of the plurality of second touch electrodes.

[0014] In the second segment, when the drive signal applied to the plurality of first touch electrodes has the disabled level, the touch driver can receive a detection signal from all of the plurality of first touch electrodes and the plurality of second touch electrodes; and in the second segment, when the drive signal applied to the plurality of second touch electrodes has the disabled level, the touch driver can receive a detection signal from all of the plurality of first touch electrodes and the plurality of second touch electrodes.

[0015] When the driving signal is applied only to the 2-1 section of the plurality of first touch electrodes in the second section and the driving signal has the disabled level, the touch driver can receive detection signals from all the plurality of first touch electrodes and the plurality of second touch electrodes; and when the driving signal is applied only to the 2-2 section of the plurality of second touch electrodes in the second section and the driving signal has the disabled level, the touch driver can receive detection signals from all the plurality of first touch electrodes and the plurality of second touch electrodes.

[0016] The touch driver can alternately apply the drive signal with the enable level to all of the plurality of first touch electrodes and the plurality of second touch electrodes in the second segment, and during the period before applying the drive signal with the enable level to all of the plurality of second touch electrodes and after applying the drive signal with the enable level to all of the plurality of first touch electrodes, and during the period before applying the drive signal with the enable level to all of the plurality of first touch electrodes and after applying the drive signal with the enable level to all of the plurality of second touch electrodes, the touch driver can receive detection signals from all touch electrodes of at least one type of the plurality of first touch electrodes and the plurality of second touch electrodes.

[0017] When a drive signal with the same phase is applied to all of the plurality of first touch electrodes and the plurality of second touch electrodes in the second segment and the drive signal has the disable level, the touch driver can receive a detection signal from all touch electrodes of at least one type among the plurality of first touch electrodes and the plurality of second touch electrodes.

[0018] The ratio of the disabled level segment to the enabled level segment within a repetition cycle of the drive signal applied to all touch electrodes of at least one type of the plurality of first touch electrodes and the plurality of second touch electrodes in the second segment may include at least one of a:2b+1, a:2b+2, a:2b+3, a:2b+4, a:(3b+1), a:2(b+3)+1, a:2(b+3), and a:(2b+1), where a and b are integers.

[0019] The touch driver can apply the first driving signal to at least one type of the plurality of first touch electrodes and the plurality of second touch electrodes in the first segment.

[0020] The touch device may further include a controller that acquires touch coordinate information by using a detection signal received by the touch driver during the second segment.

[0021] The controller can determine the type of the touched object by using the detection signal received by the touch driver during the second segment.

[0022] The touch driver may include a first driver connected to the plurality of first touch electrodes and a second driver connected to the plurality of second touch electrodes, and the first driver may include a differential amplifier connected to two of the first touch electrodes and an ADC that converts the differential amplified signal into a digital signal.

[0023] The two first touch electrodes can be separated from each other, with at least one first touch electrode disposed between them.

[0024] A touch device according to another exemplary embodiment includes: a touch panel comprising: a plurality of first touch electrodes extending in a first direction and arranged in a second direction intersecting the first direction; and a plurality of second touch electrodes extending in the second direction and arranged in the first direction; a touch driver applying the first driving signal for generating a resonant signal for a stylus to the plurality of first touch electrodes and the plurality of second touch electrodes in a first segment, and applying the second driving signal to all of the plurality of first touch electrodes and the plurality of second touch electrodes in a repetition cycle of a second segment immediately following the first segment, wherein the ratio of a disabled level segment to an enabled level segment of the second driving signal is different from the ratio of the first driving signal, and the touch driver receiving a detection signal from all of the plurality of first touch electrodes and the plurality of second touch electrodes during the second segment when the second driving signal has a disabled level; and a controller acquiring touch coordinate information and determining the type of touch object by using the detection signal received during the second segment.

[0025] One cycle of the second drive signal may include a segment in which an enable level segment and a disable level segment are repeated at least a times, and a segment in which the disable level segment can be maintained at least 2a times.

[0026] A touch detection method according to an exemplary embodiment includes: in a first segment, applying a first driving signal for generating a resonant signal for a stylus to a touch panel, the touch panel including: a plurality of first touch electrodes extending in a first direction and arranged in a second direction intersecting the first direction, and a plurality of second touch electrodes extending in the second direction and arranged in the first direction; in a second segment immediately following the first segment, receiving a detection signal from all of the plurality of first touch electrodes and the plurality of second touch electrodes; and obtaining touch coordinate information based on the detection signal.

[0027] The touch detection method may further include: in the second segment immediately following the first segment, applying a drive signal having a different ratio of disabled level segment to enabled level segment in one repetition cycle compared to the first drive signal to at least one type of the plurality of first touch electrodes and the plurality of second touch electrodes.

[0028] The ratio of the disabled level segment to the enabled level segment within a repetition cycle of the drive signal applied to all touch electrodes of at least one type of the plurality of first touch electrodes and the plurality of second touch electrodes in the second segment may include at least one of a:2b+1, a:2b+2, a:2b+3, a:2b+4, a:(3b+1), a:2(b+3)+1, a:2(b+3), and a:(2b+1), where a and b are integers.

[0029] Beneficial effects

[0030] According to an exemplary embodiment, the touch device and the touch detection method of the touch device have the advantage of being able to acquire touch coordinates along two intersecting axes in a short time.

[0031] According to an exemplary embodiment, the touch device and the touch detection method of the touch device have the advantage of ensuring sufficient touch signal processing time. Attached Figure Description

[0032] Figure 1 A touch device according to an exemplary embodiment is illustrated schematically.

[0033] Figure 2 An example of a touch device being touched by a stylus is shown.

[0034] Figure 3 It shows in detail Figure 1 Touchscreen device.

[0035] Figure 4 This is a flowchart of a touch detection method according to an exemplary embodiment.

[0036] Figure 5 and Figure 6 It is based on Figure 4 The waveforms of the driving signal and pen resonance signal of the touch detection method.

[0037] Figure 7 It is a waveform diagram of the drive signals according to various aspects of the exemplary embodiments.

[0038] Figure 8 This is a flowchart based on the touch detection method of the first aspect.

[0039] Figure 9 It is based on Figure 8 The waveforms of the driving signal and pen resonance signal of the touch detection method.

[0040] Figure 10 This is a flowchart based on the second aspect of the touch detection method.

[0041] Figure 11 It is based on Figure 10 The waveforms of the driving signal and pen resonance signal of the touch detection method.

[0042] Figure 12 This is a flowchart based on the third aspect of the touch detection method.

[0043] Figure 13 It is based on Figure 12 The waveforms of the driving signal and pen resonance signal of the touch detection method.

[0044] Figure 14 This is a flowchart based on the touch detection method in the fourth aspect.

[0045] Figure 15 It is based on Figure 14 The waveforms of the driving signal and pen resonance signal of the touch detection method.

[0046] Figure 16 This is a flowchart based on the touch detection method in the fifth aspect.

[0047] Figure 17 and Figure 18 It is based on Figure 16 The waveforms of the driving signal and pen resonance signal of the touch detection method.

[0048] Figure 20 This is a waveform diagram of the drive signal and pen resonance signal according to an exemplary embodiment. Detailed Implementation

[0049] The invention will now be described more fully with reference to the accompanying drawings, which illustrate exemplary embodiments of the invention. As will be appreciated by those skilled in the art, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention.

[0050] In describing this invention, parts irrelevant to the description will be omitted. Throughout the specification, similar reference numerals generally refer to similar elements.

[0051] Furthermore, for better understanding and ease of description, the dimensions and thicknesses of the various components shown in the accompanying drawings are arbitrary, but the invention is not limited thereto. In the drawings, the thicknesses of layers, films, panels, regions, etc., are exaggerated for clarity. In the drawings, the thicknesses of some layers and regions are exaggerated for ease of explanation.

[0052] It should be understood that when an element such as a layer, film, region, or substrate is referred to as "on another element," it can be directly on that other element, or there may be intermediate elements present. In contrast, when an element is referred to as "directly on another element," there are no intermediate elements present. Furthermore, when an element is referred to as being "on" or "above" a reference portion, the element can be located above or below that reference portion, and does not mean that the element is substantially positioned "on" or "above" in a direction opposite to gravity.

[0053] Furthermore, unless explicitly stated otherwise, the expression “comprise” and its variations (e.g., comprises or comprising) will be understood to mean including the stated element but excluding any other element.

[0054] Hereinafter, a touch device and a touch detection method of the touch device according to an exemplary embodiment will be described with reference to the accompanying drawings.

[0055] Figure 1 A touch device according to an exemplary embodiment is schematically illustrated. Figure 2 An example of a touch device being touched by a stylus is shown.

[0056] Reference Figure 1 The touch device 10 according to an exemplary embodiment may include a touch panel 100, a first driver 110 and a second driver 120 for driving the touch panel 100, and a touch controller 130.

[0057] The touch panel 100 includes: a plurality of first touch electrodes 111-1 to 111-n extending in a first direction; and a plurality of second touch electrodes 121-1 to 121-m extending in a second direction intersecting the first direction. In the touch panel 100, the plurality of first touch electrodes 111-1 to 111-n may be arranged along the second direction, and the plurality of second touch electrodes 121-1 to 121-m may be arranged along the first direction. Figure 1 In the image, the touch panel 100 is shown as having a quadrilateral shape, but this is not a limitation.

[0058] like Figure 2 As shown, the touch panel 100 includes a substrate 105 and a window 103. A plurality of first touch electrodes 111-1 to 111-n and a plurality of second touch electrodes 121-1 to 121-m can be disposed on the substrate 105. Furthermore, the window 103 can be disposed on the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m. Figure 2In this process, multiple first touch electrodes 111-1 to 111-n and multiple second touch electrodes 121-1 to 121-m are disposed on the same layer, but they can also be disposed on different layers, and this is not a limitation.

[0059] Multiple first touch electrodes 111-1 to 111-n are connected to a first driver 110, and multiple second touch electrodes 121-1 to 121-m are connected to a second driver 120. Figure 1 In this embodiment, the first driver 110 and the second driver 120 are separate, but they can also be implemented as a single module, unit or chip, but this is not limiting.

[0060] The first driver 110 can apply a drive signal to a plurality of first touch electrodes 111-1 to 111-n. Furthermore, the first driver 110 can receive detection signals from the plurality of first touch electrodes 111-1 to 111-n. Similar to the first driver 110, the second driver 120 can apply a drive signal to a plurality of second touch electrodes 121-1 to 121-m. Furthermore, the second driver 120 can receive detection signals from the plurality of first touch electrodes 121-1 to 121-m.

[0061] The driving signal may include a signal (e.g., a sine wave, a square wave, etc.) whose frequency corresponds to the resonant frequency of the stylus 20. The resonant frequency of the stylus 20 depends on the design value of the resonant circuit 23 of the stylus 20.

[0062] The touch device 10 can be used to detect touch input (direct touch or proximity touch) from a touch object. For example... Figure 2 As shown, the touch device 10 can detect touch input from the stylus 20 adjacent to the touch panel 100.

[0063] The stylus 20 may include a conductive tip 21, a resonant circuit 23, a grounding part 25, and a body 27.

[0064] At least a portion of the conductive tip 21 is formed of a conductive material (e.g., metal, conductive rubber, conductive fabric, conductive silicon, etc.), and the conductive tip 21 can be electrically connected to the resonant circuit 23.

[0065] The resonant circuit 23 is an LC resonant circuit and can resonate with a drive signal, which is a drive signal applied from at least one of the first driver 110 and the second driver 120 through the conductive tip 21 to all electrodes of at least one type of a plurality of first touch electrodes 111-1 to 111-n and a plurality of second touch electrodes 121-1 to 121-m.

[0066] The resonant signal generated by the resonant circuit 23, which resonates with the drive signal, can be output to the touch panel 100 via the conductive tip 21. The resonant signal generated by the resonance of the resonant circuit 23 can be transmitted to the conductive tip 21 in a segment after the drive signal is applied to all electrodes of at least one type among the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m. The resonant circuit 23 is disposed inside the body 27 and can be electrically connected to the ground portion 25.

[0067] This type of stylus 20 can generate touch input by generating a resonant signal in response to a driving signal applied to at least one of the touch electrodes 111-1 to 111-n and 121-1 to 121-m.

[0068] At least one of the touch electrodes 111-1 to 111-n and 121-1 to 121-m forms a capacitance Cx with the conductive tip 21 of the stylus 20. Drive signals are sent to the stylus 20 and resonant signals can be sent to the touch panel 100 through the capacitance Cx between at least one of the touch electrodes 111-1 to 111-n and 121-1 to 121-m and the conductive tip 21.

[0069] The touch device 10 can detect touches from objects other than the stylus 20 that uses the method described above to generate a resonant signal (e.g., the user's body (fingers, etc.), or a passive or active stylus), but is not limited thereto.

[0070] For example, the touch device 10 can detect the touch of a stylus that receives an electrical signal and outputs the received signal as a magnetic field signal. For example, the touch device 10 may also include a digitizer. The magnetic field signal generated by the electromagnetic resonance (or electromagnetic induction) of the stylus is detected by the digitizer, thus enabling touch detection. Alternatively, the touch device 10 can detect the touch of a stylus that receives a magnetic field signal and outputs the received signal as a resonant magnetic field signal. For example, the touch device 10 may also include a coil that applies current as a drive signal and a digitizer. The stylus resonates with the magnetic field signal generated by the coil to which current is applied. In this stylus, touch can be detected by detecting the magnetic field signal generated by the electromagnetic resonance (or electromagnetic induction) by the digitizer.

[0071] The controller 130 controls the driving of the touch device 10 and can output touch coordinate information corresponding to the touch detection results of the touch device 10.

[0072] Next, refer to Figure 3 The first driver 110 and the second driver 120 of the touch device 10 will be described in more detail.

[0073] Figure 3 It shows in detail Figure 1 Touchscreen device.

[0074] As shown in the figure, the first driver 110 includes multiple differential amplifiers 113-1 to 113-i, an ADC 115, and a digital signal processor (DSP) 117. The second driver 120 includes multiple differential amplifiers 123-1 to 123-j, an ADC 125, and a DSP 127.

[0075] The input terminals of each of the differential amplifiers 113-1 to 113-i and 123-1 to 123-j are connected to two touch electrodes separated from each other by at least one touch electrode. Each of the differential amplifiers 113-1 to 113-i and 123-1 to 123-j can differentially amplify two detection signals sent from the touch electrodes and then output a differentially amplified signal. Because each of the differential amplifiers 113-1 to 113-i and 123-1 to 123-j receives detection signals from two touch electrodes and then performs differential amplification, saturation will not occur even if drive signals are applied to multiple touch electrodes simultaneously.

[0076] Each of the differential amplifiers 113-1 to 113-i and 123-1 to 123-j can receive a detection signal from two separate touch electrodes, rather than from two adjacent touch electrodes. For example, each of the differential amplifiers 113-1 to 113-i and 123-1 to 123-j receives a detection signal from two touch electrodes that are separated from each other and have one or more touch electrodes disposed between them. Figure 3 In this circuit, differential amplifier 113-1 receives detection signals from touch electrodes 111-1 and 111-5. When differential amplifier 113-1 receives detection signals from two adjacent touch electrodes (e.g., touch electrodes 111-1 and 111-2), the detection signals generated by touch in the area between touch electrodes 111-1 and 111-2 are not strong enough even after differential amplification by differential amplifier 113-1. Therefore, touch sensitivity decreases when differential amplifier 113-1 is connected to two adjacent touch electrodes. However, since differential amplifier 113-1 receives detection signals from touch electrodes 111-1 and 111-5, the detection signals generated by the touch electrodes at the touch input position can be differentially amplified to a sufficiently strong value, thereby improving touch sensitivity.

[0077] Each of ADC 115 and ADC 125 converts the differential amplified detection signal into a digital signal. Furthermore, each of DSP 117 and DSP 127 processes the multiple differential amplified signals that have been converted into digital signals, and then sends the processed signals to controller 130.

[0078] Next, refer to Figure 4 The present invention will describe a touch detection method according to an exemplary embodiment.

[0079] Figure 4 This is a flowchart of a touch detection method according to an exemplary embodiment.

[0080] In the first segment, the first driver 110 simultaneously applies a drive signal to all of the plurality of first touch electrodes 111-1 to 111-n (S10). The resonant circuit 23 of the stylus 20 resonates with the drive signal, thereby generating a resonant signal, which is then sent to the touch panel 100 through the conductive tip 21.

[0081] In the above description, in the first section, the first driver 110 simultaneously applies a driving signal to all of the plurality of first touch electrodes 111-1 to 111-n. However, in the first section, the second driver 120 may apply a driving signal to all of the plurality of second touch electrodes 121-1 to 121-m, or the first driver 110 and the second driver 120 may simultaneously apply driving signals to all of the plurality of first touch electrodes 111-1 to 111-n and simultaneously apply driving signals to all of the plurality of second touch electrodes 121-1 to 121-m. When the first driver 110 and the second driver 120 apply driving signals to the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m, it is assumed that the driving signals applied to all of the plurality of first touch electrodes 111-1 to 111-n and the driving signals applied to all of the plurality of second touch electrodes 121-1 to 121-m have the same phase, but is not limited thereto.

[0082] In the second segment following the first segment, the first driver 110 receives detection signals from a plurality of first touch electrodes 111-1 to 111-n, and the second driver 120 receives detection signals from a plurality of second touch electrodes 121-1 to 121-m (S120). The first driver 110 and the second driver 120 can process the received detection signals and then send the processed signals to the controller 130. The controller 130 can use the sent detection signals to obtain touch coordinate information at the location where the stylus 20 touches.

[0083] Reference Figure 5 and Figure 6Describe this touch detection method.

[0084] Figure 5 and Figure 6 It is based on Figure 4 The waveforms of the driving signal and pen resonance signal of the touch detection method.

[0085] like Figure 5 As shown, in the first segment T1, a drive signal S_111 is applied to all of the plurality of first touch electrodes 111-1 to 111-n. The drive signal S_111 has an enable level voltage VE and a disable level voltage VD, and is a pulse signal with a frequency similar to the resonant frequency of the stylus 20. The stylus 20 outputs a signal that resonates with the drive signal S_111. In the first segment T1, the intensity of the pen resonant signal increases due to the application of the drive signal S_111. After a period of time, the intensity of the pen resonant signal saturates. In the first segment T1, not all of the plurality of second touch electrodes 121-1 to 121-m are subject to a drive signal. Furthermore, in the first segment T1, receiving detection signals from the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m is not performed.

[0086] At the end of the first segment T1, the first driver 110 stops applying the drive signal S_111. During the second segment T2, the drive signals S_111 and S_121 are not applied to the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m.

[0087] In the second segment T2, the first driver 110 and the second driver 120 can receive detection signals from all of the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m. In the second segment T2 without applied drive signals S_111 and S_121, the first driver 110 and the second driver 120 can receive pen resonance signals as detection signals. The controller 130 can determine the touch position and the type of touch object in the touch panel 100 by the detection signals received in the second segment T2. The touch device 10 according to the exemplary embodiment receives detection signals in the second segment T2 through all of the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m, and therefore has the advantage of quickly acquiring touch coordinates along two intersecting axes.

[0088] like Figure 6As shown, in the first segment T1, a drive signal S_111 is applied to all of the plurality of first touch electrodes 111-1 to 111-n, and a drive signal S_121 is applied to all of the plurality of second touch electrodes 121-1 to 121-m. The drive signals S_111 and S_121 have an enable level voltage VE and an disable level voltage VD, and are pulse signals with a frequency similar to the resonant frequency of the stylus 20. Figure 6 In the diagram, the enable voltage VE and disable voltage VD of the drive signals S_111 and S_121 are the same and in-phase signals, but the invention is not limited thereto. In the first segment T1, the intensity of the pen resonant signal increases due to the application of drive signals S_111 and S_121. After a period of time, the intensity of the pen resonant signal saturates. According to... Figure 6 In the exemplary embodiment, the intensity of the pen resonance signal saturated in the first segment T1 can be higher than that according to Figure 5 The exemplary embodiment describes the intensity of the pen resonant signal saturated in the first segment T1. In the first segment T1, detection signals from the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m are not received.

[0089] At the end of the first segment T1, the first driver 110 stops applying the drive signal S_111, and the second driver 120 also stops applying the drive signal S_121. During the second segment T2, the drive signals S_111 and S_121 are not applied to the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m.

[0090] During the second segment T2, the first driver 110 and the second driver 120 can receive detection signals from a plurality of first touch electrodes 111-1 to 111-n and a plurality of second touch electrodes 121-1 to 121-m. In the second segment T2 when no drive signals S_111 and S_121 are applied, the first driver 110 and the second driver 120 can receive pen resonance signals as detection signals. The controller 130 can determine the touch position and the type of touch object in the touch panel 100 based on the detection signals received in the second segment T2. The touch device 10 according to the exemplary embodiment receives detection signals through all of the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m in the second segment T2, and therefore has the advantage of quickly acquiring touch coordinates along two intersecting axes.

[0091] Furthermore, in the first segment T1, multiple first touch electrodes 111-1 to 111-n and multiple second touch electrodes 121-1 to 121-m are simultaneously applied with the same driving signals S_111 and S121. Therefore, the intensity of the resonant signal of the stylus 20 in response to the driving signal can be significantly increased.

[0092] In the above description, in the second segment T2, the reception of the detection signal can be performed at least once by at least one of the first driver 110 and the second driver 120. Furthermore, the timing of receiving the detection signal can be... Figure 5 and Figure 6 At least one of the times (signal sensing times) shown in the table may also include Figure 5 and Figure 6 The second segment T2 is not shown at any time, but this is not limiting.

[0093] Next, we will refer to Figure 7 Describe the types of drive signals S_111 and S121 that can be applied to a plurality of first touch electrodes 111-1 to 111-n and a plurality of second touch electrodes 121-1 to 121-m.

[0094] Figure 7 It is a waveform diagram of the drive signals according to various aspects of the exemplary embodiments.

[0095] During the first segment T1, at least one type of the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m is applied with a first driving signal, the enable level pulse of which is repeated at a predetermined period. During the first segment T1, the resonant signal of the stylus 20 can quickly reach a predetermined voltage level (i.e., saturate) through the first driving signal.

[0096] During the second segment T2, at least one type of the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m is applied with drive signals having multiple segments different from the disable level segment.

[0097] For example, when the duty cycle of the first drive signal output in the first segment T1 (e.g., the ratio of the disabled level segment to the enabled level segment within one repetition period P) is 1:1, the duty cycle of the drive signal output in the second segment T2 can be a:2b+1, a:2b+2, a:2b+3, a:2b+4, a:(3b+1), a:2(b+3)+1, a:2(b+3), a:(2b+1)..., etc. Here, a and b are integers. The time period corresponding to at least one period P of the drive signal output in the second segment T2 can include a time period in which the enabled level segment and the disabled level segment are repeated at least n times, and a time period in which the disabled level segment is maintained at least 2n times. The enabled level segment corresponds to a segment of the drive signal having an enabled level VE, and the disabled level segment corresponds to a segment of the drive signal having a disabled level VD. The duty cycle of the drive signal is only an example and can include all ratios that allow the resonant signal of the stylus 20, which has reached a predetermined level, to remain at an effective level.

[0098] The resonant signal of the stylus 20, which has reached a predetermined level through the first drive signal in the first segment T1, can be maintained at an effective level through the drive signal in the second segment T2. Here, the effective level refers to the level at which the controller 130 can detect the resonant signal of the stylus 20 as a touch signal.

[0099] The driving signal of the second segment T2 can be a signal in which at least one pulse is periodically omitted from the first driving signal of the first segment T1. As described above, the driving signal in the second segment T2 is output in a form where at least one pulse is periodically omitted compared to the first driving signal in the first segment T1. Therefore, the first driving signal in the first segment T1 and the driving signal in the second segment T2 can have different pulse velocities. That is, the pulse velocity of the driving signal in the second segment T2 can be less than the pulse velocity of the first driving signal in the first segment T1. Here, the pulse velocity can be the number of pulses output per unit time (e.g., 1 second).

[0100] As the number of skipped pulses in the drive signal in the second segment T2 decreases, the energy transmitted from the touch device 10 to the stylus 20 can increase. Therefore, as the number of skipped pulses in the drive signal in the second segment T2 decreases, the signal level of the pen resonance signal generated in the second segment T2 increases. Furthermore, as the number of skipped pulses in the drive signal increases, the energy consumed by the output drive signal can decrease. Therefore, as the number of skipped pulses in the drive signal in the second segment T2 increases, the energy consumed by the touch device 10 in the second segment T2 can decrease.

[0101] Next, we will refer to Figures 8 to 18 Description of applying reference Figure 7The touch detection method described is based on the driving signal in the second segment T2. Figure 8 and Figure 18 In this paper, assuming a non-skipped pulse to skipped pulse ratio of 1:1, the driving signals applied to touch electrodes 111-1 to 111-n and 121-1 to 121-m during the second segment T2 are described.

[0102] For example, such as Figure 9 , Figure 11 , Figure 13 and Figure 15 As shown, the combination of drive signals applied to a plurality of first touch electrodes 111-1 to 111-n and drive signals applied to a plurality of second touch electrodes 121-1 to 121-m can be illustrated as follows: Figure 7 The drive signal shown has a duty cycle of 1:3. Specifically, in Figure 9 and Figure 11 In an exemplary embodiment, during segment 2-1, a drive signal having a pulse sequence of enable level VE pulse, skip pulse, enable level VE pulse, and skip pulse can be applied to a plurality of first touch electrodes 111-1 to 111-n, and then a drive signal having a pulse sequence of enable level VE pulse, skip pulse, enable level VE pulse, and skip pulse can be applied to a plurality of second touch electrodes 121-1 to 121-m. Figure 9 and Figure 11 In the process, the enable level VE pulse and the skip pulse are applied twice to one type of touch electrode, but in Figure 13 and Figure 15 In an exemplary embodiment, the enable level VE pulse and the skip pulse can be applied to one type of touch electrode once, but the present invention does not limit the number of times they are applied.

[0103] Alternative locations, such as Figure 17 and Figure 18 As shown, the driving signals applied to the plurality of first touch electrodes 111-1 to 111-n and the driving signals applied to the plurality of second touch electrodes 121-1 to 121-m can be respectively Figure 7 The drive signal has a duty cycle of 1:3.

[0104] Figure 8 It is a flowchart based on the first aspect of the touch detection method. Figure 9 It is based on Figure 8 The waveforms of the driving signal and pen resonance signal of the touch detection method.

[0105] Reference Figure 8During segment 2-1 of the second segment T2, the first driver 110 simultaneously applies a second driving signal to multiple first touch electrodes 111-1 to 111-n, and the second driver 120 receives detection signals based on the level of the driving signal from multiple second touch electrodes 121-1 to 121-m (S210). During segment 2-1 of the second segment T2, the resonant signal of the stylus 20 can be maintained at an effective level by the driving signal S_111.

[0106] like Figure 9 As shown, during segment 2-1, the second drive signal S_111 can be applied only to the plurality of first touch electrodes 111-1 to 111-n. During segment 2-1, in the segment where the pulse of the drive signal S_111 is skipped, detection signals can be received from the plurality of second touch electrodes 121-1 to 121-m. That is, when the drive signals applied to the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m have a disabled level, the second driver 120 can receive detection signals from all of the plurality of second touch electrodes 121-1 to 121-m.

[0107] Reference Figure 8 During segment 2-2 of the second segment T2, the second driver 120 simultaneously applies a third driving signal S_121 to all of the plurality of second touch electrodes 121-1 to 121-m, and the first driver 110 receives detection signals from all of the plurality of first touch electrodes 111-1 to 111-n (S220). During segment 2-2 of the second segment T2, the resonant signal of the stylus 20 can be maintained at an effective level by the third driving signal S_121.

[0108] like Figure 9 As shown, during segment 2-2, the third driving signal S_121 can be applied only to the plurality of second touch electrodes 121-1 to 121-m. During segment 2-2, during the period when the pulse of the third driving signal S_121 is skipped, detection signals can be received from all of the plurality of first touch electrodes 111-1 to 111-n.

[0109] Segment 2-1 and segment 2-2 can alternate within the second segment T2. For example, when segment 2-1 ends, segment 2-2 begins, and when segment 2-2 ends, segment 2-1 begins.

[0110] Because detection signals can be received in the second segment T2 by all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m, the touch device 10 and touch detection method according to the first aspect have the advantage of quickly acquiring touch coordinates along two intersecting axes.

[0111] Figure 10 This is a flowchart based on the second aspect of the touch detection method. Figure 11 It is based on Figure 10 The waveforms of the driving signal and pen resonance signal of the touch detection method.

[0112] Reference Figure 10 During segment 2-1 of the second segment T2, the first driver 110 simultaneously applies the second driving signal S_111 to all of the plurality of first touch electrodes 111-1 to 111-n. The first driver 110 and the second driver 120 receive detection signals (S211) based on the level of the second driving signal S_111 from all of the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m. During segment 2-1 of the second segment T2, the resonant signal of the stylus 20 can be maintained at an effective level by the second driving signal S_111.

[0113] like Figure 11 As shown, during segment 2-1, the second drive signal S_111 can be applied only to the plurality of first touch electrodes 111-1 to 111-n. During segment 2-1, in the period when the pulse of the second drive signal S_111 is skipped, detection signals can be received simultaneously from all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m. That is, when the drive signals S_111 and S_121 applied to the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m have a disabled level, the first driver 110 and the second driver 120 can simultaneously receive detection signals from all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m.

[0114] Reference Figure 10 During segment 2-2 of the second segment T2, the second driver 120 simultaneously applies a third driving signal S_121 to all of the plurality of second touch electrodes 121-1 to 121-m. The first driver 110 and the second driver 120 simultaneously receive detection signals (S221) based on the level of the third driving signal S_121 from all of the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m. During segment 2-2 of the second segment T2, the resonant signal of the stylus 20 can be maintained at an effective level by the third driving signal S_121.

[0115] like Figure 11As shown, during segment 2-2, the third driving signal S_121 can be applied only to all of the plurality of second touch electrodes 121-1 to 121-m. During segment 2-2, during the period when the pulse of the third driving signal S_121 is skipped, detection signals can be received simultaneously from all of the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m.

[0116] Segment 2-1 and segment 2-2 can alternate within the second segment T2. For example, when segment 2-1 ends, segment 2-2 begins, and when segment 2-2 ends, segment 2-1 begins.

[0117] Because detection signals can be received in the second segment T2 by all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m, the touch device 10 and touch detection method according to the second aspect have the advantage of quickly acquiring touch coordinates along two intersecting axes.

[0118] Figure 12 This is a flowchart based on the third aspect of the touch detection method. Figure 13 It is based on Figure 12 The waveforms of the driving signal and pen resonance signal of the touch detection method.

[0119] Reference Figure 12 During the second segment T2, the first driver 110 applies a second driving signal S_111 to all of the plurality of first touch electrodes 111-1 to 111-n, and the second driver 120 applies a third driving signal S_121 to all of the plurality of second touch electrodes 121-1 to 121-m (S212). During the second segment T2, the resonant signal of the stylus 20 can be maintained at an effective level through the second driving signal S_111 and the third driving signal S_121.

[0120] like Figure 13 As shown, during the second segment T2, a second drive signal S_111 is applied to all of the plurality of first touch electrodes 111-1 to 111-n, and a third drive signal S_121 is applied to all of the plurality of second touch electrodes 121-1 to 121-m. A pulse with an enable level VE is alternately applied to all of the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m.

[0121] During the second segment T2, during the period when the pulse of the second drive signal S_111 is skipped, the second driver 120 receives detection signals from all of the plurality of second touch electrodes 121-1 to 121-m, and during the period when the pulse of the third drive signal S_121 is skipped, the first driver 110 receives detection signals from all of the plurality of first touch electrodes 111-1 to 111-n (S222). That is, when the second drive signal applied to the plurality of first touch electrodes 111-1 to 111-n has a disabled level and the third drive signal applied to the plurality of second touch electrodes 121-1 to 121-m has a disabled level, the second driver 120 can receive detection signals from all of the plurality of second touch electrodes 121-1 to 121-m.

[0122] During the period before applying the third drive signal S_121 with the enable level VE to all the plurality of second touch electrodes 121-1 to 121-m and after applying the second drive signal S_111 with the enable level VE to all the plurality of first touch electrodes 111-1 to 111-n, and during the period before applying the second drive signal S_111 with the enable level VE to all the plurality of first touch electrodes 111-1 to 111-n and after applying the third drive signal S_121 with the enable level VE to all the plurality of second touch electrodes 121-1 to 121-m, a detection signal can be received from all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m.

[0123] Because detection signals can be received in the second segment T2 by all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m, the touch device 10 and touch detection method according to the third aspect have the advantage of quickly acquiring touch coordinates along two intersecting axes.

[0124] Figure 14 This is a flowchart based on the fourth aspect of the touch detection method. Figure 15 It is based on Figure 14 The waveforms of the driving signal and pen resonance signal of the touch detection method.

[0125] Reference Figure 14 During the second segment T2, the first driver 110 applies a second driving signal S_111 to all of the plurality of first touch electrodes 111-1 to 111-n, and the second driver 120 applies a third driving signal S_121 to all of the plurality of second touch electrodes 121-1 to 121-m (S213). During the second segment T2, the resonant signal of the stylus 20 can be maintained at an effective level by the second driving signal S_111 and the third driving signal S_121.

[0126] like Figure 15 As shown, during the second segment T2, a second drive signal S_111 is applied to all of the plurality of first touch electrodes 111-1 to 111-n, and a third drive signal S_121 is applied to all of the plurality of second touch electrodes 121-1 to 121-m. A pulse with an enable level VE is alternately applied to all of the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m.

[0127] During the second segment T2, during the period when the pulse of the second drive signal S_111 is skipped, the second driver 120 simultaneously receives detection signals from all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m. During the period when the pulse of the third drive signal S_121 is skipped, the first driver 110 simultaneously receives detection signals from all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m (S223). That is, when the second drive signal applied to the plurality of first touch electrodes 111-1 to 111-n has a disabled level and the third drive signal applied to the plurality of second touch electrodes 121-1 to 121-m has a disabled level, the first driver 110 and the second driver 120 can simultaneously receive detection signals from all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m.

[0128] During the period before applying the third drive signal S_121 with an enable level VE to the plurality of second touch electrodes 121-1 to 121-m and after applying the second drive signal S_111 with an enable level VE to the plurality of first touch electrodes 111-1 to 111-n, and during the period before applying the second drive signal S_111 with an enable level VE to the plurality of first touch electrodes 111-1 to 111-n and after applying the third drive signal S_121 with an enable level VE to the plurality of second touch electrodes 121-1 to 121-m, a detection signal can be received from all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m.

[0129] Because detection signals can be received in the second segment T2 by all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m, the touch device 10 and touch detection method according to the fourth aspect have the advantage of quickly acquiring touch coordinates along two intersecting axes.

[0130] Figure 16This is a flowchart based on the fifth aspect of the touch detection method. Figure 17 and Figure 18 It is based on Figure 16 The waveforms of the driving signal and pen resonance signal of the touch detection method.

[0131] Reference Figure 16 During the second segment T2, the first driver 110 applies a second driving signal S_111 to all of the plurality of first touch electrodes 111-1 to 111-n, while the second driver 120 applies a third driving signal S_121 to all of the plurality of second touch electrodes 121-1 to 121-m (S214). During the second segment T2, the resonant signal of the stylus 20 can be maintained at an effective level by the second driving signal S_111 and the third driving signal S_121.

[0132] like Figure 17 and Figure 18 As shown, during the second segment T2, a second driving signal S_111 is applied to all of the plurality of first touch electrodes 111-1 to 111-n, and a third driving signal S_121 is applied to all of the plurality of second touch electrodes 121-1 to 121-m. The second driving signal S_111 and the third driving signal S_121 can be in-phase signals. When the second driving signal S_111 with an enable level VE is applied to all of the plurality of first touch electrodes 111-1 to 111-n, the third driving signal S_121 with an enable level VE is applied to all of the plurality of second touch electrodes 121-1 to 121-m.

[0133] Reference Figure 16 During the second segment T2, in a plurality of first time periods during which the pulses of the second drive signal S_111 and the third drive signal S_121 are skipped, the second driver 120 receives a detection signal from a plurality of second touch electrodes 121-1 to 121-m. Then, in a plurality of second time periods during which the pulses of the second drive signal S_111 and the third drive signal S_121 are skipped, at least one of the first driver 110 and the second driver 120 receives a detection signal from at least one type of touch electrode among the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m (S224).

[0134] For example, such as Figure 17As shown, when the second driving signal applied to the plurality of first touch electrodes 111-1 to 111-n has a disable level and the third driving signal applied to the plurality of second touch electrodes 121-1 to 121-m has a disable level, the second driver 120 can receive detection signals from all of the plurality of second touch electrodes 121-1 to 121-m. When the second driving signal applied to the next plurality of first touch electrodes 111-1 to 111-n has a disable level and the third driving signal applied to the next plurality of second touch electrodes 121-1 to 121-m has a disable level, the first driver 110 can receive detection signals from all of the plurality of first touch electrodes 111-1 to 111-n.

[0135] As another example, such as Figure 18 As shown, when the second drive signal applied to the plurality of first touch electrodes 111-1 to 111-n has a disabled level and the third drive signal applied to the plurality of second touch electrodes 121-1 to 121-m has a disabled level, the first driver 110 and the second driver 120 can simultaneously receive detection signals from all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m.

[0136] Because detection signals can be received in the second segment T2 by all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m, the touch device 10 and touch detection method according to the fifth aspect have the advantage of quickly acquiring touch coordinates along two intersecting axes.

[0137] Figure 20 This is a waveform diagram of the drive signal and pen resonance signal according to an exemplary embodiment.

[0138] Reference Figure 20 During the second segment T2, a second driving signal S_111 can be applied to all of the plurality of first touch electrodes 111-1 to 111-n, and a third driving signal S_121 can be applied to all of the plurality of second touch electrodes 121-1 to 121-m. The second driving signal S_111 and the third driving signal S_121 can be in-phase signals.

[0139] The time period corresponding to one cycle P of the second drive signal S_111 and the third drive signal S_121 may include an enable level segment and a disable level segment repeated at least n times (in Figure 20 (In the section n=3, but this is not restrictive) and the disabled level section is maintained for at least 2n times.

[0140] When the second drive signal applied to the plurality of first touch electrodes 111-1 to 111-n has a disabled level and the third drive signal applied to the plurality of second touch electrodes 121-1 to 121-m has a disabled level, the first driver 110 and the second driver 120 can simultaneously receive detection signals from all the plurality of first touch electrodes 111-1 to 111-n and the plurality of second touch electrodes 121-1 to 121-m.

[0141] exist Figures 8 to 19 In the description, receiving the detection signal can be performed at least once in the second segment T2 by at least one of the first driver 110 and the second driver 120. Furthermore, the timing of receiving the detection signal can be... Figure 9 , Figure 11 , Figure 13 , Figure 15 , Figure 17 , Figure 18 and Figure 19 The time shown in the figure (signal sensing time) can also include one of the times. Figure 9 , Figure 11 , Figure 13 , Figure 15 , Figure 17 , Figure 18 and Figure 19 At any time in the second segment T2 not shown. For example, at Figure 19 In this process, the detection signal reception time of the first driver 110 and the second driver 120 can be exactly one moment before the end of a cycle P.

[0142] Although the invention has been described in conjunction with exemplary embodiments currently considered practically feasible, it should be understood that the invention is not limited to the disclosed embodiments. Rather, it is intended to cover various modifications and equivalent configurations included within the spirit and scope of the appended claims.

Claims

1. A touch device, comprising: A touch panel, the touch panel comprising: a plurality of first touch electrodes extending in a first direction and arranged in a second direction intersecting the first direction; and a plurality of second touch electrodes extending in the second direction and arranged in the first direction; and A touch driver, in a first section, applies a first drive signal for generating a resonant signal for a stylus to the touch panel, and in a second section immediately following the first section, receives detection signals from all of the plurality of first touch electrodes and the plurality of second touch electrodes. In the second segment, the touch driver applies a drive signal to at least one type of the plurality of first touch electrodes and the plurality of second touch electrodes, wherein the ratio of the disabled level segment to the enabled level segment within a repetition cycle is different from that of the first drive signal.

2. The touch device as claimed in claim 1, wherein, The touch driver receives the detection signal in the second segment when the drive signal of at least one type applied to the plurality of first touch electrodes and the plurality of second touch electrodes is in the disabled level segment.

3. The touch device as claimed in claim 1, wherein, The touch driver receives a detection signal from all of the plurality of second touch electrodes in the second segment when the drive signal applied to the plurality of first touch electrodes has a disabled level, and receives a detection signal from all of the plurality of first touch electrodes in the second segment when the drive signal applied to the plurality of second touch electrodes has a disabled level.

4. The touch device as claimed in claim 3, wherein, When the drive signal is applied only to the 2-1 section of the plurality of first touch electrodes in the second section and the drive signal has the disabled level, the touch driver receives a detection signal from all of the plurality of second touch electrodes; and when the drive signal is applied only to the 2-2 section of the plurality of second touch electrodes in the second section and the drive signal has the disabled level, the touch driver receives a detection signal from all of the plurality of second touch electrodes.

5. The touch device as claimed in claim 1, wherein, In the second segment, when the drive signal applied to the plurality of first touch electrodes has the disabled level, the touch driver receives a detection signal from all of the plurality of first touch electrodes and the plurality of second touch electrodes; and in the second segment, when the drive signal applied to the plurality of second touch electrodes has the disabled level, the touch driver receives a detection signal from all of the plurality of first touch electrodes and the plurality of second touch electrodes.

6. The touch device as claimed in claim 5, wherein, When the driving signal is applied only to the 2-1 section of the plurality of first touch electrodes in the second section and the driving signal has the disabled level, the touch driver receives detection signals from all the plurality of first touch electrodes and the plurality of second touch electrodes; and when the driving signal is applied only to the 2-2 section of the plurality of second touch electrodes in the second section and the driving signal has the disabled level, the touch driver receives detection signals from all the plurality of first touch electrodes and the plurality of second touch electrodes.

7. The touch device as claimed in claim 1, wherein, In the second segment, the touch driver alternately applies the drive signal having the enable level to all of the plurality of first touch electrodes and the plurality of second touch electrodes, and during the period before applying the drive signal having the enable level to all of the plurality of second touch electrodes and after applying the drive signal having the enable level to all of the plurality of first touch electrodes, and during the period before applying the drive signal having the enable level to all of the plurality of first touch electrodes and after applying the drive signal having the enable level to all of the plurality of second touch electrodes, the touch driver receives detection signals from all touch electrodes of at least one type of the plurality of first touch electrodes and the plurality of second touch electrodes.

8. The touch device as claimed in claim 1, wherein, When a drive signal with the same phase is applied to all of the plurality of first touch electrodes and the plurality of second touch electrodes in the second segment and the drive signal has the disable level, the touch driver receives a detection signal from all touch electrodes of at least one type among the plurality of first touch electrodes and the plurality of second touch electrodes.

9. The touch device as claimed in claim 1, wherein, The ratio of the disabled level segment to the enabled level segment within a repetition cycle of the drive signal applied to all touch electrodes of at least one type of the plurality of first touch electrodes and the plurality of second touch electrodes in the second segment includes at least one of a:2b+1, a:2b+2, a:2b+3, a:2b+4, a:(3b+1), a:2(b+3)+1, a:2(b+3), and a:(2b+1), where a and b are integers.

10. The touch device as claimed in claim 1, wherein, The touch driver applies the first drive signal to at least one type of the plurality of first touch electrodes and the plurality of second touch electrodes in the first segment.

11. The touch device of claim 1, further comprising a controller that acquires touch coordinate information by using a detection signal received by the touch driver during the second segment.

12. The touch device of claim 11, wherein, The controller determines the type of the touched object by using the detection signal received by the touch driver during the second segment.

13. The touch device as claimed in claim 1, wherein, The touch driver includes a first driver connected to the plurality of first touch electrodes and a second driver connected to the plurality of second touch electrodes, and The first driver includes a differential amplifier connected to two first touch electrodes and an ADC that converts the differential amplified signal into a digital signal.

14. The touch device as claimed in claim 13, wherein, The two first touch electrodes are separated from each other and at least one first touch electrode is disposed therebetween.

15. A touch device, comprising: A touch panel, the touch panel comprising: a plurality of first touch electrodes extending in a first direction and arranged in a second direction intersecting the first direction, and a plurality of second touch electrodes extending in the second direction and arranged in the first direction; A touch driver that applies a first drive signal for generating a resonant signal for a stylus to a plurality of first touch electrodes and a plurality of second touch electrodes in a first segment, and applies a second drive signal to all of the plurality of first touch electrodes and the plurality of second touch electrodes in a repetition cycle of a second segment immediately following the first segment, wherein the ratio of a disabled level segment to an enabled level segment of the second drive signal is different from that ratio of the first drive signal, and that the touch driver receives a detection signal from all of the plurality of first touch electrodes and the plurality of second touch electrodes during the second segment when the second drive signal has a disabled level; and A controller that acquires touch coordinate information and determines the type of the touched object by using the detection signal received during the second segment.

16. The touch device of claim 15, wherein, One cycle of the second drive signal includes a segment in which an enable level segment and a disable level segment are repeated at least a times, and a segment in which the disable level segment is maintained at least 2a times.

17. A touch detection method, comprising: In the first section, a first driving signal for generating a resonant signal for a stylus is applied to a touch panel, the touch panel including: a plurality of first touch electrodes extending in a first direction and arranged in a second direction intersecting the first direction, and a plurality of second touch electrodes extending in the second direction and arranged in the first direction; In the second segment immediately following the first segment, detection signals are received from all of the plurality of first touch electrodes and the plurality of second touch electrodes; and Touch coordinate information is obtained based on the detection signal. The touch detection method further includes: in the second segment immediately following the first segment, applying a drive signal with a different ratio of disabled level segment to enabled level segment in one repetition cycle compared to the first drive signal to at least one type of the plurality of first touch electrodes and the plurality of second touch electrodes.

18. The touch detection method as described in claim 17, wherein, The ratio of the disabled level segment to the enabled level segment within a repetition cycle of the drive signal applied to all touch electrodes of at least one type of the plurality of first touch electrodes and the plurality of second touch electrodes in the second segment includes at least one of a:2b+1, a:2b+2, a:2b+3, a:2b+4, a:(3b+1), a:2(b+3)+1, a:2(b+3), and a:(2b+1), where a and b are integers.

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