CN117193553A - Touch control device - Google Patents

Touch control device Download PDF

Info

Publication number
CN117193553A
CN117193553A CN202210805117.1A CN202210805117A CN117193553A CN 117193553 A CN117193553 A CN 117193553A CN 202210805117 A CN202210805117 A CN 202210805117A CN 117193553 A CN117193553 A CN 117193553A
Authority
CN
China
Prior art keywords
touch
processor
capacitive
resistive
coupled
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210805117.1A
Other languages
Chinese (zh)
Inventor
黄昭翰
叶哲甫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giantplus Technology Co Ltd
Original Assignee
Giantplus Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Giantplus Technology Co Ltd filed Critical Giantplus Technology Co Ltd
Publication of CN117193553A publication Critical patent/CN117193553A/en
Pending legal-status Critical Current

Links

Abstract

The disclosure provides a touch device. The touch device controls the resistive touch system. The touch device comprises a capacitive touch panel, a processor and a touch controller. The capacitive touch panel detects a touch point. The processor generates a capacitive reporting point coordinate according to the detected touch point to further generate a voltage division signal. The touch controller generates a first resistance value and a second resistance value to the resistive touch system according to the voltage division signal. The first resistance value and the second resistance value are related to the position of a touch point on the capacitive touch panel.

Description

Touch control device
Technical Field
The present disclosure relates to an electronic device, and more particularly, to a touch device capable of operating a capacitive touch panel and a resistive touch system.
Background
Touch panels are classified into various types of touch panels according to sensing modes, including resistive touch panels, capacitive touch panels, infrared touch panels, and the like. Fig. 1 is a block diagram of a conventional resistive touch panel and a resistive touch system. The resistive touch panel 10 transmits the first resistance Rx and the second resistance Ry generated based on the touch to the resistive touch system 20. Therefore, the resistive touch system 20 performs a corresponding operation according to the first resistance Rx and the second resistance Ry. In general, the touch panel is applied to a touch panel of a touch resistance type for a user such as an industrial control device or a medical device. When the touch device is damaged due to poor contact of the resistive touch panel caused by long-term use, the resistive touch system 20 can still operate normally. However, most damaged resistive touch panels have not been produced or replaced. Therefore, for a guest system (device) using a resistive touch panel, if the resistive touch panel is damaged, the entire guest system (including the resistive touch panel 10 and the resistive touch system 20) must be scrapped or replaced with another new system (device), which causes a burden on cost.
Disclosure of Invention
The disclosure is directed to a touch device capable of controlling a resistive touch system to reuse a damaged resistive touch panel.
According to an embodiment of the disclosure, the touch device is used for controlling a resistive touch system of an electronic device. The touch device comprises a capacitive touch panel, a processor and a touch controller. The capacitive touch panel is used for detecting a touch point. The processor is coupled to the capacitive touch panel. The processor is used for generating capacitance report point coordinates according to the detected touch points and generating voltage division signals according to the capacitance report point coordinates. The touch controller is coupled to the processor and the resistive touch system. The touch controller is used for generating a first resistance value and a second resistance value to the resistive touch system according to the voltage division signal. The first resistance value and the second resistance value are related to the position of a touch point on the capacitive touch panel.
Based on the above, the touch device of the present disclosure can generate a plurality of resistance values associated with the positions of the touch points to the resistive touch system according to the coordinates of the capacitive touch points by the processor and the touch controller, so that the resistive touch system can perform corresponding touch operations according to the resistance values.
The present disclosure may be understood by reference to the following detailed description taken in conjunction with the accompanying drawings, it being noted that, in order to facilitate the understanding of the reader and for the sake of brevity of the drawings, various drawings in the present disclosure depict only a portion of the apparatus, and the specific components in the drawings are not necessarily drawn to scale. Furthermore, the number and size of the components in the figures are illustrative only and are not intended to limit the scope of the present disclosure.
Drawings
FIG. 1 is a block diagram of a conventional resistive touch panel and resistive touch system;
FIG. 2 is a block diagram of a touch device according to an embodiment of the disclosure;
FIG. 3 is a block diagram of a touch device according to an embodiment of the disclosure;
fig. 4 is a schematic circuit diagram of a touch controller according to the embodiment of fig. 3 of the present disclosure.
Description of the reference numerals
1. 2, 10, 20, electronic device;
100. 200, a touch device;
110. 210, a capacitive touch panel;
120. 220, a processor;
130. 230, a touch controller;
140. 240, a resistive touch system;
231, a voltage dividing circuit;
232 a switching circuit;
311 a first end of the first resistor string;
a second end of the first resistor string 312;
313 a third terminal of the first resistor string;
321 a first end of a second resistor string;
a second end of the second resistor string 322;
323 a third terminal of the second resistor string;
r1 is a first resistor string;
r2 is a second resistor string;
rx is a first resistance value;
ry is a second resistance value;
s0, original coordinate data;
s1, reporting point coordinates by a capacitor;
s2, dividing the voltage signal;
s3, a control signal;
s4, resistor report point coordinates;
wx is the first coordinate value in the resistor report point coordinate;
wy is a second coordinate value in the resistor report point coordinates;
x+, X-, Y+, Y-: voltage signals;
xc, a first coordinate value in the coordinates of the reporting point of the capacitor;
xr is the first signal value in the divided voltage signal;
yc is the second coordinate value in the coordinates of the reporting point of the capacitor;
yr is the second signal value in the divided signal.
Detailed Description
Certain terms are used throughout the description and following claims to refer to particular components. Those skilled in the art will appreciate that display device manufacturers may refer to a component by different names. It is not intended to distinguish between components that differ in function but not name. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to …".
In some embodiments of the disclosure, terms such as "coupled," "interconnected," and the like, with respect to bonding, connecting, and the like, may refer to two structures being in direct contact, or may refer to two structures not being in direct contact, unless otherwise specified, with other structures being disposed between the two structures. And the term coupled, connected, may also include situations where both structures are movable, or where both structures are fixed. Furthermore, the term "coupled" includes any direct or indirect electrical connection.
In order that the disclosure may be more readily understood, the following description is intended as an example in which the disclosure may be practiced. In addition, wherever possible, the same reference numbers are used throughout the drawings and the description to refer to the same or like parts.
Referring to fig. 2, fig. 2 is a block diagram of a touch device according to an embodiment of the disclosure. In the present embodiment, the touch device 100 is capable of performing an intervening control on the resistive touch system 140 of the electronic device 1, so that the resistive touch system 140 is capable of providing the touch point (or the touch trajectory) detected by the touch device 100 to the electronic device 1. In some embodiments, the touch device 100 may be integrated in the electronic device 1 together with the resistive touch system 140. In this embodiment, the resistive touch system 140 can receive signals compatible with the resistive touch panel to perform corresponding touch operations. The resistive touch system 140 is, for example, a guest system (device) applied to a resistive touch panel. It should be noted that the resistive touch system 140 of the present embodiment does not include a resistive touch panel.
In the present embodiment, the touch device 100 includes a capacitive touch panel 110, a processor 120, and a touch controller 130. The capacitive touch panel 110 is coupled to the processor 120. For example, the capacitive touch panel 110 is coupled to the processor 120 via an integrated bus circuit (Inter-Integrated Circuit, I2C). In the present embodiment, the processor 120 is further coupled to the touch controller 130. The processor 120 is coupled to the touch controller 130 via another integrated bus circuit, for example, and the touch controller 130 is coupled to the processor 120 and the resistive touch system 140.
In this embodiment, the capacitive touch panel 110 can detect a touch point. It should be noted that the capacitive touch panel 110 has the characteristics of scratch resistance, dust resistance, high accuracy, high transmittance, high reactivity, high durability, high sensitivity, and the like, so that a finger can lightly touch the touch element of the capacitive touch panel 110 to enable the capacitive touch panel 110 to detect a touch point without pressing the touch element of the capacitive touch panel 110.
In the present embodiment, the processor 120 may generate the capacitive touch point coordinate S1 according to the touch point detected by the capacitive touch panel 110, and generate the voltage division signal S2 according to the capacitive touch point coordinate S1. The processor 120 may also transmit the divided signal S2 to the touch controller 130. In the present embodiment, the divided voltage signal S2 may be a control signal. The voltage division signal S2 is used to instruct the touch controller 130 how to set the bridging relationship of the circuits in the touch controller 130, so that the touch controller 130 generates a resistive touch panel signal (i.e. the first resistance Rx and the second resistance Ry) associated with the touch point and compatible with the touch panel signal.
In this embodiment, the processor 120 may be a conversion circuit for converting the capacitive reporting point coordinate S1 into the partial pressure signal S2. However, the present disclosure is not limited thereto. In some embodiments, processor 120 is, for example, a signal converter, a field programmable gate array (Field Programmable Gate Array, FPGA), a central processing unit (Central Processing Unit, CPU), or other programmable general purpose or special purpose Microprocessor (Microprocessor), digital signal processor (Digital Signal Processor, DSP), programmable controller, application specific integrated circuit (Application Specific Integrated Circuits, ASIC), programmable logic device (Programmable Logic Device, PLD), or other similar device or combination of devices that can load and execute a computer program.
In the embodiment, the touch controller 130 generates the first resistance Rx and the second resistance Ry according to the voltage division signal S2. The touch controller 130 transmits the first resistance value Rx and the second resistance value Ry to the resistive touch system 140, so that the resistive touch system 140 performs a touch operation according to the first resistance value Rx and the second resistance value Ry.
In the present embodiment, the first resistance value Rx and the second resistance value Ry are related to the position of the touch point on the capacitive touch panel 110, and further, the first resistance value Rx is related to the position of the touch point of the capacitive touch panel 110 in the first direction (for example, in the X-axis direction). The second resistance Ry is related to the position of the touch point of the capacitive touch panel 110 in the second direction (e.g. Y-axis direction). Further, the first resistance value Rx corresponds to a touch position of the capacitive touch panel 110 in a first direction (i.e., an X-axis direction), and also corresponds to a position of a touch point in the first direction relative to the resistive touch panel. The second resistance value Ry corresponds to a touch position of the capacitive touch panel 110 in the second direction (i.e., the Y-axis direction), and also corresponds to a position of the touch point in the second direction relative to the resistive touch panel. Therefore, the resistive touch system 140 without the resistive touch panel can perform a touch operation according to the first resistance value Rx and the second resistance value Ry.
In this embodiment, the touch controller 130 may be a converting circuit for converting the voltage division signal S2 into the first resistance value Rx and the second resistance value Ry. However, the present disclosure is not limited thereto. Some embodiments of the touch controller 130 are described in detail below with respect to the examples of fig. 3 and 4.
It should be noted that the touch device 100 can convert the capacitive reporting point coordinate S1 into the first resistance value Rx and the second resistance value Ry through the processor 120 and the touch controller 130. In this way, even if the resistive touch panel is damaged and removed, or the resistive touch panel is damaged and cannot detect the touch point, the resistive touch system 140 applied to the resistive touch panel can receive the first resistance value Rx and the second resistance value Ry to perform the touch operation. Therefore, the touch device 100 can replace the resistive touch panel to be applied as the capacitive touch panel 110, and can reuse the damaged resistive touch panel.
Referring to fig. 2 again, in the present embodiment, the processor 120 may further convert the capacitive reporting point coordinate S1 into the resistive reporting point coordinate S4 according to the reference resistance voltage of the resistive touch system 140. In addition, the processor 120 may generate the voltage division signal S2 according to the resistor reporting point coordinate S4 and the reference resistor value of the touch controller 130.
Specifically, in the present embodiment, when the capacitive touch panel 110 detects a touch point, the capacitive touch panel 110 reads the original coordinate data S0 of the touch point, as shown in formula (1):
s0= (Xraw, yraw) formula (1)
In the present embodiment, the coordinate data Xraw in the original coordinate data S0 is the X-axis original coordinate data read by the position of the touch point of the capacitive touch panel 110 in the X-axis direction. The coordinate data Yraw in the original coordinate data S0 is the Y-axis original coordinate data read by the position of the touch point of the capacitive touch panel 110 in the Y-axis direction. Taking this embodiment as an example, the original coordinate data S0 is 16-ary data, for example. The original coordinate data S0 is, for example, (0 x0190,0x00f 0).
In the present embodiment, when the processor 120 obtains the original coordinate data S0, the processor 120 parses the original coordinate data S0 and generates the capacitive reporting point coordinate S1 corresponding to the original coordinate data S0, as shown in formula (2):
s1= (Xc, yc) formula (2)
In the present embodiment, the first coordinate value Xc in the capacitive touch coordinate S1 is a coordinate value of the position of the touch point of the capacitive touch panel 110 in the X-axis direction. The second coordinate value Yc in the capacitive touch point coordinate S1 is a coordinate value of the position of the touch point of the capacitive touch panel 110 in the Y-axis direction. It should be noted that the capacitive reporting point coordinates S1 are coordinate signals compatible with the capacitive touch panel 110 to indicate the position of the touch point. Taking the present embodiment as an example, the processor 120 generates the capacitive reporting point coordinate S1 based on the value of the original coordinate data S0. Thus, the original coordinate data S0 is, for example, (0×0190,0×00f 0). The coordinates S1 of the capacitive reporting points are (400, 240), for example.
In this embodiment, when the processor 120 generates the capacitive reporting point coordinate S1, the processor 120 also converts the capacitive reporting point coordinate S1 into the resistive reporting point coordinate S4. Specifically, in the present embodiment, the processor 120 multiplies the reference resistor voltage s4_ref by the ratio between the reference capacitor point coordinates s1_ref and the capacitor point coordinates S1 of the capacitive touch panel to generate a resistor point coordinate S4, as shown in formula (3):
in this embodiment, the first coordinate value Wx in the resistor reporting point coordinate S4 is the coordinate of the position of the resistor touch panel in the X-axis direction. The second coordinate value Wy in the resistor report point coordinate S4 is the coordinate of the position of the resistor touch panel in the Y-axis direction. It should be noted that the position of the aforementioned resistive report point coordinate S4 is the position of the touch point relative to (e.g. mapped to) the resistive touch panel. Therefore, the resistive spot coordinates S4 correspond to the capacitive spot coordinates S1, and the resistive spot coordinates S4 also correspond to the corresponding position on the resistive touch panel.
In the present embodiment, the first coordinate value Vrx in the reference resistance voltage s4_ref is the maximum voltage value of the resistive touch system 140 in the X-axis direction. The second coordinate value Vry of the reference resistance voltage S4_ref is the maximum voltage of the resistive touch system 140 in the Y-axis direction. It should be noted that the reference resistor voltage s4_ref is a voltage signal. In this embodiment, the reference resistance voltage s4_ref, i.e., (Vrx, vry), is, for example, (3.3) (volts). In some embodiments, the reference resistance voltage s4_ref further includes a minimum voltage value (e.g., 0) of the resistive touch system 140 in the X-axis direction, and a minimum voltage value (e.g., 0) of the resistive touch system 140 in the Y-axis direction. In some embodiments, the reference resistance voltage s4_ref may be (vrx+, vrx-, vry +, vry-), e.g., (3.3,0,3.3,0) (volts).
In the present embodiment, the first coordinate value xc_max in the reference capacitive reporting point coordinate s1_ref is the maximum coordinate value of the capacitive touch panel 110 in the X-axis direction. The second coordinate value yc_max in the reference capacitive report point coordinate s1_ref is the maximum coordinate value of the capacitive touch panel 110 in the Y-axis direction. The reference capacitor point coordinates s1_ref are fixed coordinate signals.
In the present embodiment, the first coordinate value Wx in the resistor reporting point coordinate S4 is obtained by multiplying the ratio between the first coordinate value Vrx (e.g., 3.3 volts) in the reference resistor voltage s4_ref and the first coordinate value xc_max (e.g., 800) in the reference capacitor reporting point coordinate s1_ref and the first coordinate value Xc (e.g., 400) in the capacitor reporting point coordinate S1. The second coordinate value Wy in the resistor coordinates S4 is obtained by multiplying the ratio between the second coordinate value Vry (e.g., 3.3 volts) in the reference resistor voltage s4_ref and the second coordinate value yc_max (e.g., 480) in the reference capacitor coordinates s1_ref and the second coordinate value Yc (e.g., 240) in the capacitor coordinates S1.
As can be seen from the above embodiment of formula (3), the resistor coordinates S4 are expressed by voltage values (Wx, wy) (volts). Therefore, based on the calculation of the formula (3'), the resistance point coordinates S4 are (1.65).
In the present embodiment, when the processor 120 generates the resistor reporting point coordinate S4, the processor 120 generates the voltage dividing signal S2 according to at least the resistor reporting point coordinate S4, and sets the overlapping relationship of the circuits of the touch controller 130 according to the voltage dividing signal S2. In this way, the touch controller 130 is controlled to provide the first resistance Rx and the second resistance Ry.
Specifically, in the present embodiment, the processor 120 multiplies the ratio between the reference resistance value r_ref of the touch controller 130 and the reference resistance voltage s4_ref and the resistance setpoint coordinate S4 to generate the divided voltage signal S2, as shown in the following formula (4):
in the present embodiment, the first signal value Xr in the divided voltage signal S2 is a control signal for generating the first resistance value Rx. The second signal value Yr in the voltage division signal S2 is a control signal for generating the second resistance value Ry.
In the present embodiment, the first resistance value rx_ref of the reference resistance values r_ref is the reference resistance value of the touch controller 130 in the X-axis direction. The second resistance Ry_ref of the reference resistance R_ref is a reference resistance of the touch controller 130 in the Y-axis direction. It should be noted that the reference resistance value r_ref is a set of resistance values. In the present embodiment, the first resistance value rx_ref of the reference resistance value r_ref is, for example, 5k (ohms). The second resistance Ry_ref of the reference resistance R_ref is, for example, 5k (ohm)
In the present embodiment, the first signal value Xr of the voltage division signal S2 is obtained by multiplying a ratio between the first resistance value rx_ref (e.g., 5k ohms) of the reference resistance values r_ref, the first coordinate value Vrx (e.g., 3.3 volts) of the reference resistance voltage s4_ref, and the first coordinate value Wx (e.g., 1.65 volts) of the resistor point coordinate S4. The second signal value Yr of the voltage division signal S2 is obtained by multiplying the ratio between the second resistance value ry_ref (e.g., 5k ohms) of the reference resistance values r_ref and the second coordinate value Vry (e.g., 3.3 volts) of the reference resistance voltage s4_ref and the second coordinate value Wy (e.g., 1.65 volts) of the resistor report point coordinate S4. Thus, based on the calculation of the formula (4'), the divided voltage signal S2 is (2.5 k ). That is, the first signal value Xr is a signal value characterized as making the first resistance value Rx equal to 2.5k (ohms). The second signal value Yr is a signal value characterized as making the second resistance value Ry equal to 2.5k (ohms).
Referring to fig. 3, fig. 3 is a block diagram of a touch device according to an embodiment of the disclosure. In this embodiment, the touch device 200 can control the resistive touch system 240 of the electronic device 2. The touch device 200 includes a capacitive touch panel 210, a processor 220, and a touch controller 230. The touch device 200 shown in fig. 3 can be analogized with reference to the related description of the touch device 100 shown in fig. 2.
The touch device 200 of fig. 3 is different from the touch device 100 of fig. 2 in that the touch controller 230 includes a voltage divider 231 and a switch 232. The voltage divider 231 is coupled to the processor 220 and the resistive touch system 240. In this embodiment, the voltage divider 231 can set the voltage (or resistance) distribution configuration according to the voltage division signal S2 to form a voltage divider having a first resistance Rx and a second resistance Ry. In this embodiment, the voltage divider circuit 231 is, for example, a controllable resistance circuit.
Specifically, in the present embodiment, the voltage dividing circuit 231 sets the position of the first overlap end of the voltage dividing circuit 231 according to the first signal value Xr of the voltage dividing signal S2. The first overlap end of the voltage dividing circuit 231 corresponds to a voltage dividing position for generating the first resistance value Rx, so as to output the first resistance value Rx to the resistive touch system 240. In the present embodiment, the voltage divider circuit 231 sets the second overlap end of the voltage divider circuit 231 according to the second signal value Yr of the voltage division signal S2. The second overlap end of the voltage divider 231 corresponds to a voltage dividing position for generating the second resistance Ry, so as to output the second resistance Ry to the resistive touch system 240.
In the present embodiment, an input of the switch circuit 232 is coupled to the processor 220 via a General-purpose input/output bus (GPIO), for example. The switching circuit 232 is controlled by the processor 220 and performs a switching operation according to a control signal S3 from the processor 220.
Specifically, in the present embodiment, the first terminal of the switch circuit 232 is coupled to the first terminal of the voltage divider circuit 231. A second terminal of the switch circuit 232 is coupled to a second terminal of the voltage divider circuit 231. The switch circuit 232 may short-circuit the first and second bonding terminals according to the control signal S3, so that the voltage dividing circuit 231 generates a first resistance value Rx corresponding to the first signal value Xr, and the voltage dividing circuit 231 generates a second resistance value Ry corresponding to the second signal value Yr.
Fig. 4 is a schematic circuit diagram of a touch controller according to the embodiment of fig. 3 of the present disclosure. Referring to fig. 3 and 4, in the present embodiment, the voltage divider circuit 231 includes a first resistor string R1 and a second resistor string R2. The first resistor string R1 of the present embodiment includes a plurality of resistors coupled in series. For clarity, the embodiment of fig. 4 is only exemplified by one resistor, and the number of resistors included in the first resistor string R1 is only an example, and is not limited thereto. The second resistor string R2 may be referred to the description of the first resistor string R1 and so on, and will not be repeated here.
In the present embodiment, the first resistor string R1 is a variable resistor and has a first overlap end to determine the first resistance value Rx. The position of the first overlap end is, for example, the third end 313 of the first resistor string R1, and the position of the first overlap end is determined by the first signal value Xr of the voltage division signal S2. In the present embodiment, the second resistor string R2 is a variable resistor, and has a second overlap end to determine the second resistance value Ry. The position of the second overlap end is, for example, the third end 323 of the second resistor string R2, and the position of the second overlap end is determined by the second signal value Yr of the voltage division signal S2.
In the present embodiment, the first end 311 of the first resistor string R1 is coupled to the first receiving end of the resistive touch system 240, and can receive the voltage signal x+ (e.g. 3.3 volts). The second terminal 312 of the first resistor string R1 is coupled to the second receiving terminal of the resistive touch system 240 and can receive the voltage signal X- (e.g., 0V). The third terminal 313 of the first resistor string R1 serves as a first overlap terminal. In the present embodiment, the first end 321 of the second resistor string R2 is coupled to the third receiving end of the resistive touch system 240, and can receive the voltage signal y+ (e.g. 3.3 volts). The second terminal 322 of the second resistor string R2 is coupled to the fourth receiving terminal of the resistive touch system 240 and can receive the voltage signal Y- (e.g., 0V). The third terminal 323 of the second resistor string R2 serves as a second overlap terminal.
In the present embodiment, when the third terminal 313 of the first resistor string R1 and the third terminal 323 of the second resistor string R2 are connected to short-circuit, the first resistor string R1 provides the voltage division resistance value of the first resistor string R1. The voltage division resistance value of the first resistor string R1 is a resistance value (i.e., a first resistance value Rx) between the third end 313 of the first resistor string R1 and the second end 312 of the first resistor string R1. In addition, the second resistor string R2 provides a voltage dividing resistance value of the second resistor string R2. The voltage division resistance value of the second resistor string R2 is a resistance value (i.e., a second resistance value Ry) between the third terminal 323 of the second resistor string R2 and the second terminal 322 of the second resistor string R2.
In this embodiment, the switching circuit 232 may respectively short-circuit the third terminal 313 of the first resistor string R1 and the third terminal 323 of the second resistor string R2 according to the control signal S3. In some embodiments, the switching circuit 232 may short-circuit the third terminal 313 of the first resistor string R1 and the third terminal 323 of the second resistor string R2 together according to the control signal S3.
In summary, the touch device of the embodiment of the disclosure may convert the coordinates of the capacitive reporting points into the voltage division signal through the processor, and generate the resistance value compatible with the resistive touch panel according to the voltage division signal through the touch controller. In this way, the touch device can detect a touch point through the capacitive touch panel, and perform a touch operation according to the touch point through the resistive touch system. In some embodiments, the touch device may generate the touch signal compatible with the resistive touch panel through the voltage dividing circuit and the switching circuit, so that the touch device can replace the resistive touch panel to be applied as a capacitive touch panel.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present disclosure, but not limiting the same; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present disclosure.

Claims (11)

1. A touch device for controlling a resistive touch system of an electronic device, the touch device comprising:
a capacitive touch panel for detecting a touch point;
the processor is coupled with the capacitive touch panel, and is used for generating capacitance report point coordinates according to the detected touch points and generating voltage division signals according to the capacitance report point coordinates; and
the touch controller is coupled with the processor and the resistive touch system and is used for generating a first resistance value and a second resistance value to the resistive touch system according to the voltage division signal,
wherein the first resistance value and the second resistance value are associated with a location of the touch point on the capacitive touch panel.
2. The touch device of claim 1, wherein the first resistance value corresponds to a touch location of a capacitive touch panel in a first direction, and wherein the second resistance value corresponds to a touch location of the capacitive touch panel in a second direction.
3. The touch device of claim 1, wherein the processor is further configured to convert the capacitive reporting point coordinates to resistive reporting point coordinates based on a reference resistive voltage of the resistive touch system.
4. The touch device of claim 3, wherein the processor is further configured to multiply the reference resistance voltage by a ratio between a reference capacitive pointer coordinate of the capacitive touch panel and the capacitive pointer coordinate to generate the resistance pointer coordinate.
5. The touch device of claim 3, wherein the processor is further configured to generate the voltage division signal based on the resistor reporting point coordinates and a reference resistor value of the touch controller.
6. The touch device of claim 5, wherein the processor is further configured to multiply a ratio between the reference resistance value and the reference resistance voltage and the resistance point coordinates to generate the divided voltage signal.
7. The touch device of claim 1, wherein the touch controller comprises:
the voltage dividing circuit is coupled with the processor and the resistance type touch control system, a first lap joint end of the voltage dividing circuit corresponds to a voltage dividing position for generating the first resistance value, and a second lap joint end of the voltage dividing circuit corresponds to a voltage dividing position for generating the second resistance value; and
the input end of the switching circuit is coupled with the processor, the first output end of the switching circuit is coupled with the first lap joint end, and the second output end of the switching circuit is coupled with the second lap joint end.
8. The touch device of claim 7, wherein the voltage divider circuit comprises:
a first resistor string, a first end of the first resistor string being coupled to a first receiving end of the resistive touch system, a second end of the first resistor string being coupled to a second receiving end of the resistive touch system, and a third end of the first resistor string being the first overlap end; and
a second resistor string, a first end of the second resistor string being coupled to a third receiving end of the resistive touch system, a second end of the second resistor string being coupled to a fourth receiving end of the resistive touch system, and a third end of the second resistor string being the second overlap end,
wherein the positions of the first overlapping end and the second overlapping end are respectively determined by the partial pressure signals.
9. The touch device of claim 8, wherein the switching circuit shorts a third terminal of the first resistor string and a third terminal of the second resistor string, respectively, according to a control signal from the processor.
10. The touch device of claim 7, wherein the processor is coupled to the switching circuit via a universal input/output bus.
11. The touch device of claim 1, wherein the capacitive touch panel is coupled to the processor via a first integrated bus circuit and the processor is coupled to the touch controller via a second integrated bus circuit.
CN202210805117.1A 2022-06-01 2022-07-08 Touch control device Pending CN117193553A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW111205801 2022-06-01
TW111205801U TWM632337U (en) 2022-06-01 2022-06-01 Touch device

Publications (1)

Publication Number Publication Date
CN117193553A true CN117193553A (en) 2023-12-08

Family

ID=84613960

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210805117.1A Pending CN117193553A (en) 2022-06-01 2022-07-08 Touch control device

Country Status (2)

Country Link
CN (1) CN117193553A (en)
TW (1) TWM632337U (en)

Also Published As

Publication number Publication date
TWM632337U (en) 2022-09-21

Similar Documents

Publication Publication Date Title
US8159473B2 (en) Method for detecting touch point and touch panel using the same
US6738048B1 (en) Touch screen controller
US20110012829A1 (en) Cursor control method for controlling cursor displayed on monitor of electonic apparatus by means of pressure detection and cursor control device thereof
US20090159343A1 (en) Touch panel
US10158360B2 (en) Capacitive switch having high accuracy
JP2009301854A (en) Switch device
JP5029144B2 (en) Capacitive touch switch device
CN102906661B (en) Engage passive user input adnexa and the method thereof of compressible conducting element
CN117193553A (en) Touch control device
CN114003147B (en) Signal detection device, touch pad and electronic equipment
CN104423616A (en) Input device and control unit
CN217690011U (en) Mouse device with multi-touch control area on press key
US20150177901A1 (en) Touch panel, position sensing method of touch panel, and integrated circuit
CN216388040U (en) Signal detection device, touch pad and electronic equipment
CN210119239U (en) Sensing device and electronic equipment
CN211317368U (en) Sensor detection circuit and electronic equipment
US10678354B2 (en) Electronic system
US6903673B1 (en) Analog-to-digital converting module capable of converting data at an increased resolution
CN212322228U (en) Touch panel
JP7002879B2 (en) Touch-type input device and its controller IC
KR20100043916A (en) Complex-type button device for touch sensing possibility
CN116414237A (en) Mouse device with multiple touch areas on key
TW202326384A (en) Knob device
WO2023129827A1 (en) Mouse device having button with plurality of touch zones
CN104345977A (en) Touch detection circuit, touch detection method, and electronic apparatus

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination