WO2022193442A1 - 触控装置 - Google Patents

触控装置 Download PDF

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Publication number
WO2022193442A1
WO2022193442A1 PCT/CN2021/097312 CN2021097312W WO2022193442A1 WO 2022193442 A1 WO2022193442 A1 WO 2022193442A1 CN 2021097312 W CN2021097312 W CN 2021097312W WO 2022193442 A1 WO2022193442 A1 WO 2022193442A1
Authority
WO
WIPO (PCT)
Prior art keywords
touch
circuit
electrically connected
line
control circuit
Prior art date
Application number
PCT/CN2021/097312
Other languages
English (en)
French (fr)
Inventor
高磊
Original Assignee
深圳市华星光电半导体显示技术有限公司
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 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to US17/427,092 priority Critical patent/US20230367413A1/en
Publication of WO2022193442A1 publication Critical patent/WO2022193442A1/zh

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04106—Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection

Definitions

  • the present application relates to the field of touch control, and in particular, to a touch control device.
  • the touch devices on the market can be divided into capacitive touch and electromagnetic touch according to the realization principle.
  • capacitive touch can be directly operated with a stylus or a finger, and has a wide range of applications but limited touch precision.
  • Electromagnetic touch requires a matching stylus to realize touch operation, which has high touch precision but limited convenience.
  • devices compatible with capacitive touch and electromagnetic touch need to add another layer of electromagnetic touch structure on the basis of the existing capacitive touch structure, which increases the complexity and manufacturing difficulty of the touch device, and is not conducive to the development of thinning trend.
  • the embodiments of the present application provide a touch device, which solves the technical problem that the structure of a touch device compatible with capacitive touch and electromagnetic touch in the prior art is too complicated.
  • An embodiment of the present application provides a touch device including a touch substrate, the touch substrate including a base and a touch circuit disposed on the base, and the touch device further comprising an electrical connection with the touch circuit
  • the touch mode switching circuit, the touch mode switching circuit controls the touch circuit to switch between a capacitive touch circuit and an electromagnetic touch circuit, at least part of the sensing signal lines of the capacitive touch circuit and the The sensing signal lines of the electromagnetic touch circuit are collinear.
  • the touch device further includes a display panel, and the sensing signal lines of the capacitive touch circuit on the display area of the display panel are all connected to the electromagnetic touch circuit.
  • the sense signal lines are collinear.
  • the touch circuit includes a plurality of first touch lines and a plurality of second touch lines, the first touch lines and the second touch lines
  • the insulating arrangement is staggered;
  • the touch mode switching circuit includes a first switch control circuit and a second switch control circuit, at least two of the first touch wires are electrically connected to the first switch control circuit, and at least two of the first touch wires are electrically connected to the first switch control circuit.
  • the second touch line is electrically connected to the second switch control circuit; when both the first switch control circuit and the second switch control circuit are in the off mode, the at least two first touch lines There are open circuits between them, the at least two second touch lines are open circuits, and the touch circuits are mutual capacitance touch circuits; the first switch control circuit and the second switch control circuit When the circuits are both in the ON mode, the two first touch lines are electrically connected, and the two second touch lines are electrically connected, and the touch circuit is an electromagnetic touch circuit.
  • the first switch control circuit includes a first switch, and two ends of the first switch are respectively electrically connected to two adjacent first touch wires;
  • the second switch control circuit includes a second switch, and both ends of the second switch are electrically connected to two adjacent second touch lines respectively; when the touch circuit is a mutual capacitance touch circuit, The first switch and the second switch are both disconnected, the two adjacent first touch lines are disconnected, and the two adjacent second touch lines are disconnected; the touch When the control circuit is an electromagnetic touch circuit, both the first switch and the second switch are turned on, the two adjacent first touch lines are electrically connected, and the adjacent two second touch lines are electrically connected. electrical connection between wires.
  • the touch circuit when the touch circuit is a mutual capacitance touch circuit, the first touch line is a transmission signal line, and the second touch line is a sensing signal line ;
  • the touch control circuit is an electromagnetic touch control circuit, the first touch control line and the second touch control line are both sensing signal lines.
  • the touch control mode switching circuit includes a touch control chip and a switch control circuit, and the first touch control line and the second touch control line are respectively connected to the touch control line.
  • the chips are electrically connected; when the touch control circuit is a mutual capacitance touch circuit, the touch control chip outputs a touch transmission signal to the first touch control line, and the second touch control line feeds back to the touch control chip touch sensing signal; when the touch circuit is an electromagnetic touch circuit, the touch chip has a built-in first current measurement device and a second current measurement device, and the two ends of the first current measurement device are respectively connected to each other
  • the two rows of the first touch wires that are electrically connected are electrically connected, and two ends of the second current measuring device are respectively electrically connected to the two rows of the second touch wires that are electrically connected to each other.
  • the first touch wires and the second touch wire feeds a touch sensing signal to the touch chip.
  • a display panel is included, and the first touch line and the second touch line are respectively disposed on both sides of a cover plate of the display panel.
  • a display panel is included, and the first touch line and the second touch line are mutually insulated and provided on the same side of the cover plate of the display panel.
  • a display panel is included, the first touch line and the second touch line are disposed in the same layer, and the first touch line is in the same layer as the second touch line.
  • the intersections of the control lines are bridged by conductive structures on another layer.
  • the touch mode switching circuit includes a touch control chip and a switch control circuit, and the switch control circuit is built in the touch control chip.
  • the touch control circuit includes a plurality of sensing circuit units, the sensing circuit unit includes a third touch control line, and two ends of the third touch control line are respectively is electrically connected to the touch mode switching circuit;
  • the touch mode switching circuit includes a touch control chip and a selection switch control circuit, when the selection switch control circuit selects the first channel, the first The terminal is electrically connected to the second signal terminal of the touch control chip, the second terminal of the third touch control wire is electrically connected to the first signal terminal of the touch control chip, and the touch control circuit is an electromagnetic touch control circuit ;
  • the selection switch control circuit selects the second channel, the first end of the third touch line is connected to the second end of the third touch line, and the second end of the third touch line is connected
  • the touch control circuit is electrically connected to the first signal terminal of the touch control chip, and the touch control circuit is a self-capacitance touch control circuit.
  • the sensing circuit unit includes a coil-shaped third touch line, and when the touch circuit is an electromagnetic touch circuit, the third touch line is formed In the coil-shaped electromagnetic sensing circuit, the third touch wire is an electromagnetic sensing signal wire; when the touch circuit is a self-capacitance touch circuit, the third touch wire is a capacitive sensing signal wire.
  • the third current measuring device is built in the touch control chip.
  • the selection switch control circuit includes a plurality of selection switches, the first end of the third touch wire is electrically connected to the selection end of the selection switch, and the first end of the third touch control line is electrically connected to the selection end of the selection switch.
  • the second end of the three touch wires is electrically connected to the first signal end of the touch control chip, the first channel of the selection switch is electrically connected to the second signal end of the touch control chip, and the first channel of the selection switch is electrically connected to the second signal end of the touch control chip.
  • the two channels are electrically connected to the first signal terminal of the touch control chip;
  • the touch switch circuit includes a third current measuring device electrically connected to the first terminal and the second terminal of the third touch wire respectively.
  • the touch control device includes a display panel, and within one scan period of the display panel, the touch mode switching circuit controls the touch control circuit to perform a capacitive touch control operation. At least one switch is completed between the circuit and the electromagnetic touch circuit.
  • the present application further provides a touch device, including a touch substrate having a display area, the touch substrate including a base and a touch circuit disposed on the base, the touch device further comprising a touch mode switching circuit electrically connected to the circuit, the touch mode switching circuit controls the touch circuit to switch between the capacitive touch circuit and the electromagnetic touch circuit; at least part of the sensing signal lines of the capacitive touch circuit It is collinear with the sensing signal line of the electromagnetic touch circuit.
  • the sensing signal lines of the capacitive touch circuit located on the display area are all collinear with the sensing signal lines of the electromagnetic touch circuit.
  • the touch circuit includes a plurality of first touch lines and a plurality of second touch lines, the first touch lines and the second touch lines
  • the insulating arrangement is staggered;
  • the touch mode switching circuit includes a first switch control circuit and a second switch control circuit, at least two of the first touch wires are electrically connected to the first switch control circuit, and at least two of the first touch wires are electrically connected to the first switch control circuit.
  • the second touch line is electrically connected to the second switch control circuit; when both the first switch control circuit and the second switch control circuit are in the off mode, the at least two first touch lines There are open circuits between them, the at least two second touch lines are open circuits, and the touch circuits are mutual capacitance touch circuits; the first switch control circuit and the second switch control circuit When the circuits are both in the ON mode, the two first touch lines are electrically connected, and the two second touch lines are electrically connected, and the touch circuit is an electromagnetic touch circuit.
  • the touch control circuit includes a plurality of sensing circuit units, the sensing circuit unit includes a third touch control line, and two ends of the third touch control line are respectively is electrically connected to the touch mode switching circuit;
  • the touch mode switching circuit includes a touch chip and a selection switch control circuit; when the selection switch control circuit selects the first channel, the first The terminal is electrically connected to the second signal terminal of the touch control chip, the second terminal of the third touch control wire is electrically connected to the first signal terminal of the touch control chip, and the touch control circuit is an electromagnetic touch control circuit ;
  • the selection switch control circuit selects the second channel, the first end of the third touch line is connected to the second end of the third touch line, and the second end of the third touch line is connected
  • the touch control circuit is electrically connected to the first signal terminal of the touch control chip, and the touch control circuit is a self-capacitance touch control circuit.
  • the sensing circuit unit includes a coil-shaped third touch line; when the touch circuit is an electromagnetic touch circuit, the third touch line is formed In the coil-shaped electromagnetic sensing circuit, the third touch wire is an electromagnetic sensing signal wire; when the touch circuit is a self-capacitance touch circuit, the third touch wire is a capacitive sensing signal wire.
  • the beneficial effects of the present application by adding a touch mode switching circuit, the touch circuit is controlled to switch between the capacitive touch circuit and the electromagnetic touch circuit, so that the touch device can be operated in the capacitive touch mode and/or the electromagnetic touch. Switching between modes expands the application scenarios of touch devices.
  • the sensing signal line in the capacitive touch mode and the sensing signal line in the electromagnetic touch mode are collinearly arranged, so that the thickness of the existing touch device does not need to be increased, which is beneficial to the light and thin design of the touch device .
  • FIG. 1 is a schematic structural diagram of a touch device according to a first embodiment of the present application
  • FIG. 2 is a schematic diagram when the touch circuit in the touch device provided in FIG. 1 is a mutual capacitance touch circuit
  • FIG. 3 is a schematic diagram when the touch circuit in the touch device provided in FIG. 1 is an electromagnetic touch circuit
  • FIG. 4 is a schematic structural diagram of a touch device according to a second embodiment of the present application.
  • FIG. 5 is a schematic diagram when the touch circuit in the touch device provided in FIG. 4 is an electromagnetic touch circuit.
  • the present application provides a touch device including a touch substrate.
  • the touch substrate includes a base and a touch circuit arranged on the base.
  • the touch device further includes a touch mode switching circuit electrically connected to the touch circuit.
  • the touch mode switching circuit controls the touch circuit to switch between the capacitive touch circuit and the electromagnetic touch circuit. At least part of the sensing signal lines of the capacitive touch circuit are collinear with the sensing signal lines of the electromagnetic touch circuit.
  • the sensing signal line of the capacitive touch circuit and the sensing signal line of the electromagnetic touch circuit are designed to be collinear, and a touch mode switching circuit is added to control the touch circuit between the capacitive touch circuit and the electromagnetic touch circuit. Switching to realize a touch device that is compatible with more touch modes without adding an additional hierarchical structure.
  • FIG. 1 to FIG. 3 The first embodiment provided by the present application is shown in FIG. 1 to FIG. 3 .
  • This embodiment provides a touch device 100 including a touch substrate 1 and a touch mode switching circuit 2 .
  • the touch substrate 1 includes a base 11 and a touch circuit 12 disposed on the base 11 .
  • the touch substrate 1 may be a display panel provided with a display device, and the touch circuit 12 is located on the display area of the display panel to realize touch display of the display panel.
  • the touch circuit 12 is electrically connected to the touch mode switching circuit 2 .
  • the touch mode switching circuit 2 controls the touch circuit 12 to switch between the capacitive touch circuit and the electromagnetic touch circuit.
  • the touch circuit 12 includes a plurality of rows of first touch lines 121 and a plurality of columns of second touch lines 122 .
  • the first touch lines 121 and the second touch lines 122 are alternately and insulated.
  • the touch mode switching circuit 2 includes a first switch control circuit 21 , a second switch control circuit 22 and a touch control chip 23 .
  • the first switch control circuit 21 is electrically connected to at least two rows of the first touch lines 121 .
  • the second switch control circuit 22 is electrically connected to at least two rows of the second touch wires 122 .
  • the first switch control circuit 21 includes a plurality of first switches 211 . Two ends of each first switch 211 are electrically connected to two adjacent rows of first touch wires 121 respectively.
  • the second switch control circuit 22 includes a plurality of second switches 222 . Two ends of each second switch 222 are electrically connected to two adjacent rows of second touch wires 122 respectively.
  • the touch circuit 12 is a mutual capacitance touch circuit.
  • the first touch lines 121 in the multiple rows are independent of each other, that is, the first touch lines 121 in the multiple rows are all disconnected.
  • the multiple rows of the second touch lines 122 are independent of each other, that is, the multiple rows of the second touch lines 122 are all disconnected.
  • the first touch line 121 is a transmission signal line.
  • the second touch line 122 is a sensing signal line.
  • the touch chip 23 outputs a touch transmission signal to the first touch line 121 .
  • the second touch wire 122 feeds back touch sensing signals to the touch chip 23 to realize mutual capacitive touch.
  • the first touch line 121 can also be used as a sensing signal line.
  • the second touch line 122 serves as a transmission signal line.
  • the touch chip 23 outputs a touch transmission signal to the second touch line 122 .
  • the first touch wire 121 feeds back touch sensing signals to the touch chip 23 to realize mutual capacitive touch.
  • the touch circuit 12 is an electromagnetic touch circuit.
  • the first touch lines 121 in two adjacent rows are electrically connected.
  • the second touch lines 122 in two adjacent columns are electrically connected.
  • the first touch line 121 and the second touch line 122 are both sensing signal lines at this time.
  • the touch chip 23 has a built-in first current measurement device (not shown in the figure) and a second current measurement device (not shown in the figure). Two ends of the first current measuring device are respectively electrically connected to two rows of first touch lines 121 that are electrically connected to each other.
  • the second current measuring devices are respectively electrically connected to the two rows of second touch lines 122 that are electrically connected to each other. Both the first touch wire 121 and the second touch wire 122 feed touch sensing signals to the touch chip 23 to realize electromagnetic touch.
  • the second touch line 122 is not only a sensing signal line of the mutual capacitance touch circuit, but also a sensing signal line of the electromagnetic touch circuit. That is, the sensing signal line of the capacitive touch circuit and the sensing signal line of the electromagnetic touch circuit are collinear. Moreover, the sensing signal lines of the capacitive touch circuit are all used as the sensing signal lines of the electromagnetic touch circuit.
  • the portion of the second touch line 122 located on the display area of the display panel serves as the sensing signal line of the capacitive touch circuit and is collinear with the sensing signal line of the electromagnetic touch circuit .
  • the part of the second touch wire 122 located on the display area of the display panel will all be used as the sensing signal wire of the capacitive touch circuit and the sensing signal wire of the electromagnetic touch circuit.
  • the capacitive sensing signal line of the capacitive touch circuit can be partially used as the electromagnetic sensing signal of the electromagnetic touch circuit. line, which is not specifically limited here.
  • the first touch lines 121 and the second touch lines 122 are located on different layers that are insulated from each other.
  • the first touch wire 121 and the second touch wire 122 can be disposed on two sides of the cover plate respectively, or can be disposed on the same side of the cover plate insulated from each other.
  • the first touch lines 121 and the second touch lines 122 can be disposed on two sides of the glass substrate, respectively, or disposed on the same side of the glass substrate insulated from each other. It can be understood that, in other embodiments of the present application, the first touch lines 121 and the second touch lines 122 may be disposed in the same layer.
  • the first touch line 121 or the second touch line 122 is bridged by conductive structures located in other layers at the intersection of the two, which is not specifically limited herein.
  • first touch wire 121 or at least one second touch wire 122 that is not electrically connected to the switch control circuit, so as to be used for repair or as a single touch mode, which is not specifically limited here.
  • each first switch 211 is respectively electrically connected to two non-adjacent rows of the first touch lines 121 or two ends of each second switch 222 are respectively electrically connected It is electrically connected to two non-adjacent columns of the second touch lines 122 .
  • Redundant touch lines are arranged between two rows or two columns of touch lines electrically connected to the same switch. There is no specific limitation here.
  • the touch mode switching circuit 2 may be disposed on the touch substrate 1, or may be disposed on an external circuit board or a flexible circuit board, which is not specifically limited herein.
  • the external circuit board or flexible circuit board can be located on the opposite side to the driver chip of the display panel. Specifically, if the driver chip of the display panel is located on the left side and the lower side of the display panel, the external circuit board or flexible circuit board provided with the touch mode switching circuit 2 can be arranged on the right side and the upper side of the display panel.
  • the first switch control circuit 21 and/or the second switch control circuit 22 in the touch mode switching circuit 2 may be built in the touch chip 23 , or may be provided on the touch substrate 1 , or may be provided On an external circuit board or a flexible circuit board, there is no specific limitation here.
  • FIG. 4 and FIG. 5 The second embodiment provided by the present application is shown in FIG. 4 and FIG. 5 .
  • This embodiment provides a touch device 200 including a touch substrate 1 and a touch mode switching circuit 2 .
  • the touch substrate 1 includes a base 11 and a touch circuit 12 disposed on the base 11 .
  • the touch substrate 1 may be a display panel provided with a display device, and the touch circuit 12 is located on the display area of the display panel to realize touch display of the display panel.
  • the touch circuit 12 is electrically connected to the touch mode switching circuit 2 .
  • the touch mode switching circuit 2 controls the touch circuit 12 to switch between the capacitive touch circuit and the electromagnetic touch circuit.
  • the touch circuit 12 includes a plurality of sensing circuit units 123 .
  • Each sensing circuit unit 123 includes a third touch wire 124 arranged in a coil shape. Two ends of the third touch wire 124 are respectively electrically connected to the touch mode switching circuit 2 .
  • the touch mode switching circuit 2 includes a touch chip 23 and a selection switch control circuit 24 .
  • the selection switch control circuit 24 includes a plurality of selection switches 241 .
  • the first end of each third touch wire 124 is electrically connected to the selection end S of a selection switch 241 .
  • the second end of each third touch wire 124 is electrically connected to the touch chip 23 .
  • the second end of a third touch wire 124 is electrically connected to the first signal end P of the touch chip 23 .
  • the first channel S1 corresponding to the selection switch 241 is electrically connected to the second signal terminal Q of the touch control chip 23 .
  • the second channel S2 of the selection switch 241 is electrically connected to the first signal terminal P of the touch control chip 23 .
  • the first end of the third touch wire 124 is electrically connected to the first signal end P of the touch chip 23 . That is, the first end of the third touch wire 124 is electrically connected to the second end of the third touch wire 124 and is electrically connected to the first signal terminal P of the touch chip 23 .
  • the touch circuit 12 is a self-capacitance touch circuit.
  • the third touch line 124 is a capacitive sensing signal line.
  • the third touch wire 124 itself forms a closed loop through the selection switch 241 .
  • the third touch wire 124 feeds back the touch sensing signal generated by the closed loop to the touch chip 23 to realize self-capacitance touch.
  • the touch switch circuit 2 When the selection switches 241 in the selection switch control circuit 24 all select the first channel S1, as shown in FIG. 5 .
  • the first end of the third touch wire 124 is electrically connected to the second signal end Q of the touch chip 23 .
  • the second end of the third touch wire 124 is electrically connected to the first signal end P of the touch chip 23 .
  • the touch circuit 12 is an electromagnetic touch circuit.
  • the third touch wire 124 forms a coil-shaped electromagnetic sensing loop.
  • the third touch line 124 is an electromagnetic sensing signal line at this time.
  • the touch switch circuit 2 further includes a third current measuring device 25 electrically connected to the first end and the second end of the third touch wire 124 respectively.
  • the third current measuring device 25 measures the sensing current fed back by the third touch wire 124 to the touch chip 23 to realize electromagnetic touch.
  • the third touch wire 124 is not only a capacitive sensing signal wire of the self-capacitive touch circuit, but also an electromagnetic sensing signal wire of the electromagnetic touch circuit. That is, the sensing signal line of the capacitive touch circuit and the sensing signal line of the electromagnetic touch circuit are collinear. Moreover, the sensing signal lines of the capacitive touch circuit are all used as the sensing signal lines of the electromagnetic touch circuit.
  • the portion of the third touch line 124 located on the display area of the display panel serves as the sensing signal line of the capacitive touch circuit and is collinear with the sensing signal line of the electromagnetic touch circuit .
  • the part of the third touch line 124 located on the display area of the display panel is all used as the sensing signal line of the capacitive touch circuit and the sensing signal line of the electromagnetic touch circuit.
  • FIG. 4 and FIG. 5 only show the selection switch control circuit 24 corresponding to some of the third touch lines 124 , and the rest of the third touch lines 124 have the same circuit design as the selection switch control circuit 24 , here Due to the limited space of the picture, it will not be repeatedly drawn.
  • the capacitive sensing signal line of the capacitive touch circuit can be partially used as the electromagnetic sensing signal line of the electromagnetic touch circuit, There is no specific limitation here.
  • the third touch wire 124 may be located on the cover plate of the OLED display panel or on the glass substrate of the LCD display panel, which is not specifically limited herein.
  • the touch mode switching circuit 2 may be disposed on the touch substrate 1, or may be disposed on an external circuit board or a flexible circuit board, which is not specifically limited herein.
  • the external circuit board or flexible circuit board can be located on the opposite side to the driver chip of the display panel. Specifically, if the driver chip of the display panel is located on the left side and the lower side of the display panel, the external circuit board or flexible circuit board provided with the touch mode switching circuit 2 can be arranged on the right side and the upper side of the display panel.
  • the selection switch control circuit 24 in the touch mode switching circuit 2 can be built into the touch chip 23 , can also be arranged on the touch substrate 1 , or can be arranged on an external circuit board or a flexible circuit board. , which is not specifically limited here.
  • first current measuring device the second current measuring device and the third current measuring device 25 mentioned in this application can be implemented by the structure built into the touch chip 23 , or can be arranged outside the touch chip 23 .
  • the current measuring device is not specifically limited here.
  • the touch mode switching circuit controls the touch circuit between the capacitive touch circuit and the electromagnetic touch circuit in one scan period of the display panel. Complete at least one switchover. That is, in one scan cycle of the display panel, the touch circuit 12 first detects whether there is a finger touch through the capacitive touch circuit, and then detects whether there is a stylus touch through the electromagnetic touch circuit, so that the touch device can simultaneously provide capacitive touch.
  • the touch method and the electromagnetic touch method enhance the recognition ability of the touch device and expand the application scenarios of the touch device.
  • a touch mode switching circuit is added to control the touch circuit to switch between the capacitive touch circuit and the electromagnetic touch circuit, so that the touch device can switch between the capacitive touch mode and/or the electromagnetic touch mode , expanding the application scenarios of touch devices.
  • the sensing signal line in the capacitive touch mode and the sensing signal line in the electromagnetic touch mode are collinearly arranged, so that the thickness of the existing touch device does not need to be increased, which is beneficial to the light and thin design of the touch device .
  • a touch control device provided by the embodiments of the present application has been introduced in detail above.
  • the principles and implementations of the present application are described with specific examples.
  • the descriptions of the above embodiments are only used to help understand the present application. method and its core idea; at the same time, for those skilled in the art, according to the idea of the application, there will be changes in the specific implementation and application scope.
  • the content of this specification should not be construed as a limits.

Abstract

本申请实施例公开了一种触控装置，包括触控基板，所述触控基板包括基底和设置在所述基底上的触控电路，所述触控装置还包括与所述触控电路电连接的触控模式切换电路，所述触控模式切换电路控制所述触控电路在电容触控电路与电磁触控电路之间切换，至少部分所述电容触控电路的感测信号线与所述电磁触控电路的感测信号线共线。

Description

触控装置 技术领域
本申请涉及触控领域，具体涉及一种触控装置。
 背景技术
目前市场上触控装置按照实现原理可分为电容式触控和电磁式触控等。其中，电容式触控可以使用触控笔或手指直接操作，应用面较广但触控精度有限。电磁式触控需要配套的触控笔来实现触控操作，触控精度较高但便利度有限。目前兼容电容触控和电磁触控的装置需要在现有电容触控结构的基础上另外增加一层电磁触控结构，增加了触控装置的复杂度和制造难度，也不利于轻薄化的发展趋势。
 技术问题
本申请实施例提供一种触控装置，解决了现有技术中兼容电容触控和电磁触控的触控装置结构过于复杂的技术问题。
 技术解决方案
本申请实施例提供一种触控装置，包括触控基板，所述触控基板包括基底和设置在所述基底上的触控电路，所述触控装置还包括与所述触控电路电连接的触控模式切换电路，所述触控模式切换电路控制所述触控电路在电容触控电路与电磁触控电路之间切换，至少部分所述电容触控电路的感测信号线与所述电磁触控电路的感测信号线共线。
可选的，在本申请的一些实施例中，触控装置还包括显示面板，位于所述显示面板的显示区上的所述电容触控电路的感测信号线均与所述电磁触控电路的感测信号线共线。
可选的，在本申请的一些实施例中，所述触控电路包括多个第一触控线和多个第二触控线，所述第一触控线与所述第二触控线交错绝缘设置；所述触控模式切换电路包括第一开关控制电路和第二开关控制电路，至少两个所述第一触控线与所述第一开关控制电路电连接，至少两个所述第二触控线与所述第二开关控制电路电连接；所述第一开关控制电路和所述第二开关控制电路均处于断开模式时，所述至少两个所述第一触控线之间均为断路，所述至少两个所述第二触控线之间均为断路，所述触控电路为互电容触控电路；所述第一开关控制电路和所述第二开关控制电路均处于开启模式时，两个所述第一触控线之间电连接，两个所述第二触控线之间电连接，所述触控电路为电磁触控电路。
可选的，在本申请的一些实施例中，所述第一开关控制电路包括第一开关，所述第一开关的两端分别与相邻的两个所述第一触控线电连接；所述第二开关控制电路包括第二开关，所述第二开关的两端分别与相邻的两个所述第二触控线电连接；所述触控电路为互电容触控电路时，所述第一开关和所述第二开关均断开，所述相邻两个所述第一触控线断开，所述相邻两个所述第二触控线断开；所述触控电路为电磁触控电路时，所述第一开关和所述第二开关均导通，相邻两个所述第一触控线之间电连接，相邻两个所述第二触控线之间电连接。
可选的，在本申请的一些实施例中，所述触控电路为互电容触控电路时，所述第一触控线为发射信号线，所述第二触控线为感测信号线；所述触控电路为电磁触控电路时，所述第一触控线和所述第二触控线均为感测信号线。
可选的，在本申请的一些实施例中，所述触控模式切换电路包括触控芯片和开关控制电路，所述第一触控线和所述第二触控线分别与所述触控芯片电连接；所述触控电路为互电容触控电路时，所述触控芯片向所述第一触控线输出触控发射信号，所述第二触控线向所述触控芯片反馈触控感测信号；所述触控电路为电磁触控电路时，所述触控芯片内置有第一电流测量装置和第二电流测量装置，所述第一电流测量装置的两端分别与相互电连接的两行所述第一触控线电连接，所述第二电流测量装置的两端分别与相互电连接的两列所述第二触控线电连接，所述第一触控线和所述第二触控线向所述触控芯片反馈触控感测信号。
可选的，在本申请的一些实施例中，包括显示面板，所述第一触控线与所述第二触控线分别设置在所述显示面板的盖板的两侧。
可选的，在本申请的一些实施例中，包括显示面板，所述第一触控线与所述第二触控线相互绝缘的设置在所述显示面板的盖板的同侧。
可选的，在本申请的一些实施例中，包括显示面板，所述第一触控线与所述第二触控线同层设置，所述第一触控线在与所述第二触控线的交叉处通过位于另一层的导电结构跨接。
可选的，在本申请的一些实施例中，所述触控模式切换电路包括触控芯片和开关控制电路，所述开关控制电路内置于所述触控芯片内。
可选的，在本申请的一些实施例中，所述触控电路包括多个感测电路单元，所述感测电路单元包括第三触控线，所述第三触控线的两端分别与所述触控模式切换电路电连接；所述触控模式切换电路包括触控芯片和选择开关控制电路，所述选择开关控制电路选择第一通道时，所述第三触控线的第一端与所述触控芯片的第二信号端电连接，所述第三触控线的第二端与所述触控芯片的第一信号端电连接，所述触控电路为电磁触控电路；所述选择开关控制电路选择第二通道时，所述第三触控线的第一端与所述第三触控线的第二端导通，所述第三触控线的第二端电连接至所述触控芯片的第一信号端，所述触控电路为自电容触控电路。
可选的，在本申请的一些实施例中，所述感测电路单元包括呈线圈状的第三触控线，所述触控电路为电磁触控电路时，所述第三触控线形成线圈状的电磁感测回路，所述第三触控线为电磁感测信号线；所述触控电路为自电容触控电路时，所述第三触控线为电容感测信号线。
可选的，在本申请的一些实施例中，所述第三电流测量装置内置于所述触控芯片内。
可选的，在本申请的一些实施例中，所述选择开关控制电路包括多个选择开关，所述第三触控线的第一端与所述选择开关的选择端电连接，所述第三触控线的第二端与所述触控芯片的第一信号端电连接，所述选择开关的第一通道与所述触控芯片的第二信号端电连接，所述选择开关的第二通道与所述触控芯片的第一信号端电连接；所述触控切换电路包括分别与所述第三触控线的第一端和第二端电连接的第三电流测量装置。
可选的，在本申请的一些实施例中，所述触控装置包括显示面板，在所述显示面板的一个扫描周期内，所述触控模式切换电路控制所述触控电路在电容触控电路与电磁触控电路之间至少完成一次切换。
本申请还提供一种触控装置，包括具有显示区的触控基板，所述触控基板包括基底和设置在所述基底上的触控电路，所述触控装置还包括与所述触控电路电连接的触控模式切换电路，所述触控模式切换电路控制所述触控电路在电容触控电路与电磁触控电路之间切换；至少部分所述电容触控电路的感测信号线与所述电磁触控电路的感测信号线共线。
可选的，在本申请的一些实施例中，位于所述显示区上的所述电容触控电路的感测信号线均与所述电磁触控电路的感测信号线共线。
可选的，在本申请的一些实施例中，所述触控电路包括多个第一触控线和多个第二触控线，所述第一触控线与所述第二触控线交错绝缘设置；所述触控模式切换电路包括第一开关控制电路和第二开关控制电路，至少两个所述第一触控线与所述第一开关控制电路电连接，至少两个所述第二触控线与所述第二开关控制电路电连接；所述第一开关控制电路和所述第二开关控制电路均处于断开模式时，所述至少两个所述第一触控线之间均为断路，所述至少两个所述第二触控线之间均为断路，所述触控电路为互电容触控电路；所述第一开关控制电路和所述第二开关控制电路均处于开启模式时，两个所述第一触控线之间电连接，两个所述第二触控线之间电连接，所述触控电路为电磁触控电路。
可选的，在本申请的一些实施例中，所述触控电路包括多个感测电路单元，所述感测电路单元包括第三触控线，所述第三触控线的两端分别与所述触控模式切换电路电连接；所述触控模式切换电路包括触控芯片和选择开关控制电路；所述选择开关控制电路选择第一通道时，所述第三触控线的第一端与所述触控芯片的第二信号端电连接，所述第三触控线的第二端与所述触控芯片的第一信号端电连接，所述触控电路为电磁触控电路；所述选择开关控制电路选择第二通道时，所述第三触控线的第一端与所述第三触控线的第二端导通，所述第三触控线的第二端电连接至所述触控芯片的第一信号端，所述触控电路为自电容触控电路。
可选的，在本申请的一些实施例中，所述感测电路单元包括呈线圈状的第三触控线；所述触控电路为电磁触控电路时，所述第三触控线形成线圈状的电磁感测回路，所述第三触控线为电磁感测信号线；所述触控电路为自电容触控电路时，所述第三触控线为电容感测信号线。
 有益效果
本申请的有益效果：通过增设触控模式切换电路，控制触控电路在电容触控电路与电磁触控电路之间切换，使触控装置能在电容式触控模式和/或电磁式触控模式之间切换，扩大了触控装置的应用场景。此外，将电容式触控模式下的感测信号线与电磁式触控模式下的感测信号线共线设置，可以不需要增加现有触控装置的厚度，有利于触控装置轻薄化设计。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请第一实施例提供的一种触控装置的结构示意图；
图2是图1所提供的触控装置中触控电路为互电容触控电路时的示意图；
图3是图1所提供的触控装置中触控电路为电磁触控电路时的示意图；
图4是本申请第二实施例提供的一种触控装置的结构示意图；
图5是图4所提供的触控装置中触控电路为电磁触控电路时的示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请提供了一种包括触控基板的触控装置。触控基板包括基底和设置在基底上的触控电路。触控装置还包括与触控电路电连接的触控模式切换电路。触控模式切换电路控制触控电路在电容触控电路与电磁触控电路之间切换。至少部分电容触控电路的感测信号线与电磁触控电路的感测信号线共线。本申请通过将电容触控电路的感测信号线与电磁触控电路的感测信号线共线设计，并增设触控模式切换电路控制触控电路在电容触控电路与电磁触控电路之间切换，实现不需要额外增加层级结构就能兼容更多触控模式的触控装置。
本申请提供的第一实施例如图1至图3所示，本实施例提供了一种触控装置100包括触控基板1和触控模式切换电路2。
触控基板1包括基底11和设置在基底11上的触控电路12。当触控装置1为触控显示装置时，触控基板1可以是设置有显示器件的显示面板，触控电路12位于显示面板的显示区上以实现显示面板的触控显示。触控电路12与触控模式切换电路2电连接。触控模式切换电路2控制触控电路12在电容触控电路与电磁触控电路之间切换。
在本实施例中，触控电路12包括多行第一触控线121和多列第二触控线122。第一触控线121与第二触控线122交错绝缘设置。触控模式切换电路2包括第一开关控制电路21、第二开关控制电路22和触控芯片23。第一开关控制电路21与至少两行第一触控线121电连接。第二开关控制电路22与至少两列第二触控线122电连接。具体的，第一开关控制电路21包括多个第一开关211。每一第一开关211的两端分别与相邻的两行第一触控线121电连接。第二开关控制电路22包括多个第二开关222。每一第二开关222的两端分别与相邻的两列第二触控线122电连接。
当第一开关控制电路21和第二开关控制电路22均处于断开模式时，多个第一开关211和多个第二开关222均断开，触控电路12为互电容触控电路。结合图2所示，多行第一触控线121之间相互独立，即多行第一触控线121之间均为断路。多行第二触控线122之间相互独立，即多行第二触控线122之间均为断路。在本实施例中，第一触控线121为发射信号线。第二触控线122为感测信号线。触控芯片23向第一触控线121输出触控发射信号。第二触控线122向触控芯片23反馈触控感测信号以实现互电容触控。可以理解的是，在本申请的其他具体实施例中，第一触控线121也可作为感测信号线。第二触控线122作为发射信号线。触控芯片23向第二触控线122输出触控发射信号。第一触控线121向触控芯片23反馈触控感测信号以实现互电容触控。
当第一开关控制电路21和第二开关控制电路22均处于开启模式时，多个第一开关211和多个第二开关222均导通，触控电路12为电磁触控电路。结合图3所示，相邻两行第一触控线121之间电连接。相邻两列第二触控线122之间电连接。第一触控线121和第二触控线122此时均为感测信号线。触控芯片23内置有第一电流测量装置（图中未示出）和第二电流测量装置（图中未示出）。第一电流测量装置的两端分别与相互电连接的两行第一触控线121电连接。第二电流测量装置分别与相互电连接的两列第二触控线122电连接。第一触控线121和第二触控线122均向触控芯片23反馈触控感测信号以实现电磁触控。
在本实施例中，第二触控线122既是互电容触控电路的感测信号线，也是电磁触控电路的感测信号线。即电容触控电路的感测信号线与电磁触控电路的感测信号线共线。而且，电容触控电路的感测信号线全部用作电磁触控电路的感测信号线。当触控装置100为触控显示装置时，第二触控线122位于显示面板的显示区上的部分作为电容触控电路的感测信号线均与电磁触控电路的感测信号线共线。换句话说，第二触控线122位于显示面板的显示区上的部分将全部用作电容触控电路的感测信号线和电磁触控电路的感测信号线。
可以理解的是，在本申请的其他实施例中，为兼具修复、信号传输等其他功能或效果，电容触控电路的电容感测信号线可部分用作电磁触控电路的电磁感测信号线，在此不作具体限定。
在本实施例中，第一触控线121与第二触控线122位于相互绝缘的不同层上。在OLED显示面板中，可将第一触控线121与第二触控线122分别设置在盖板的两侧，或彼此绝缘的设置在盖板的同侧。在LCD显示面板中，可将第一触控线121与第二触控线122分别设置在玻璃基板的两侧，或彼此绝缘的设置在玻璃基板的同侧。可以理解的是，在本申请的其他实施例中，第一触控线121与第二触控线122可同层设置。第一触控线121或第二触控线122在两者的交叉处通过位于其他层的导电结构跨接，在此不作具体限定。
可以理解的是，在本申请的其他实施例中，存在至少一个第一触控线121或至少一个第二触控线122不与开关控制电路电连接，以作为修复用或用作单一触控模式，在此不作具体限定。
可以理解的是，在本申请的其他实施例中，每一第一开关211的两端分别与不相邻的两行第一触控线121电连接或每一第二开关222的两端分别与不相邻的两列第二触控线122电连接。与同一开关电连接的两行或两列触控线之间设置有冗余触控线。在此不作具体限定。
可以理解的是，触控模式切换电路2可以设置在触控基板1上，也可以设置在外置的电路板或柔性电路板上，在此不作具体限定。外置的电路板或柔性电路板可与显示面板的驱动芯片位于对侧。具体来说，若显示面板的驱动芯片位于显示面板的左侧和下侧，则设置有触控模式切换电路2的外置电路板或柔性电路板可设置在显示面板的右侧和上侧。
可以理解的是，触控模式切换电路2中的第一开关控制电路21和/或第二开关控制电路22可以内置于触控芯片23内，也可以设置在触控基板1上，也可以设置在外置的电路板或柔性电路板上，在此不作具体限定。
本申请提供的第二实施例如图4和图5所示，本实施例提供了一种触控装置200包括触控基板1和触控模式切换电路2。
触控基板1包括基底11和设置在基底11上的触控电路12。当触控装置1为触控显示装置时，触控基板1可以是设置有显示器件的显示面板，触控电路12位于显示面板的显示区上以实现显示面板的触控显示。触控电路12与触控模式切换电路2电连接。触控模式切换电路2控制触控电路12在电容触控电路与电磁触控电路之间切换。
在本实施例中，触控电路12包括多个感测电路单元123。每一感测电路单元123包括呈线圈状设置的第三触控线124。第三触控线124的两端分别与触控模式切换电路2电连接。
触控模式切换电路2包括触控芯片23和选择开关控制电路24。选择开关控制电路24包括多个选择开关241。每一第三触控线124的第一端与一选择开关241的选择端S电连接。每一第三触控线124的第二端与触控芯片23电连接。在图示实施例中，一第三触控线124的第二端与触控芯片23的第一信号端P电连接。对应选择开关241的第一通道S1与触控芯片23的第二信号端Q电连接。选择开关241的第二通道S2与触控芯片23的第一信号端P电连接。
当选择开关控制电路24中的选择开关241均选择第二通道S2时，如图4所示。第三触控线124的第一端与触控芯片23的第一信号端P电连接。即第三触控线124的第一端与第三触控线124的第二端导通并电连接至触控芯片23的第一信号端P。此时，触控电路12为自电容触控电路。第三触控线124为电容感测信号线。第三触控线124自身通过选择开关241形成一个闭合回路。第三触控线124将闭合回路产生的触控感测信号反馈至触控芯片23以实现自电容触控。
当选择开关控制电路24中的选择开关241均选择第一通道S1时，如图5所示。第三触控线124的第一端与触控芯片23的第二信号端Q电连接。第三触控线124的第二端与触控芯片23的第一信号端P电连接。触控电路12为电磁触控电路。第三触控线124形成线圈状的电磁感测回路。第三触控线124此时为电磁感测信号线。触控电路12为电磁触控电路时，触控切换电路2还包括分别与第三触控线124的第一端和第二端电连接的第三电流测量装置25。第三电流测量装置25测量第三触控线124反馈给触控芯片23的感测电流以实现电磁触控。
在本实施例中，第三触控线124既是自电容触控电路的电容感测信号线，也是电磁触控电路的电磁感测信号线。即电容触控电路的感测信号线与电磁触控电路的感测信号线共线。而且，电容触控电路的感测信号线全部用作电磁触控电路的感测信号线。当触控装置200为触控显示装置时，第三触控线124位于显示面板的显示区上的部分作为电容触控电路的感测信号线均与电磁触控电路的感测信号线共线。换句话说，第三触控线124位于显示面板的显示区上的部分全部用作电容触控电路的感测信号线和电磁触控电路的感测信号线。
值得说明的是，图4和图5仅示出了部分第三触控线124对应的选择开关控制电路24，其余第三触控线124对应有与选择开关控制电路24相同的电路设计，这里由于图片空间有限不再重复绘制。
可以理解的是，在本申请的其他实施例中，为兼具修复、信号传输等其他功能，电容触控电路的电容感测信号线可部分用作电磁触控电路的电磁感测信号线，在此不作具体限定。
可以理解的是，在本申请的其他实施例中，第三触控线124可以位于OLED显示面板的盖板上，或LCD显示面板的玻璃基板上，在此不作具体限定。
可以理解的是，在本申请的其他实施例中，存在至少一个第三触控线124不与选择开关控制电路24电连接，以作为修复用或用作单一触控模式，在此不作具体限定。
可以理解的是，触控模式切换电路2可以设置在触控基板1上，也可以设置在外置的电路板或柔性电路板上，在此不作具体限定。外置的电路板或柔性电路板可与显示面板的驱动芯片位于对侧。具体来说，若显示面板的驱动芯片位于显示面板的左侧和下侧，则设置有触控模式切换电路2的外置电路板或柔性电路板可设置在显示面板的右侧和上侧。
可以理解的是，触控模式切换电路2中的选择开关控制电路24可以内置于触控芯片23内，也可以设置在触控基板1上，也可以设置在外置的电路板或柔性电路板上，在此不作具体限定。
可以理解的是，本申请中提及的第一电流测量装置、第二电流测量装置以及第三电流测量装置25可以通过触控芯片23内置的结构实现，也可以是设置在触控芯片23外部的电流测量装置，在此不作具体限定。
在本申请的具体实施例中，当触控装置为触控显示装置时，在显示面板的一个扫描周期内，触控模式切换电路控制触控电路在电容触控电路与电磁触控电路之间至少完成一次切换。即在显示面板的一个扫描周期内，触控电路12先通过电容触控电路检测是否有手指触控，再通过电磁触控电路检测是否有触控笔触控，使触控装置能同时提供电容式触控方式和电磁式触控方式，增强触控装置的识别能力，扩大触控装置的应用场景。
本申请通过增设触控模式切换电路，控制触控电路在电容触控电路与电磁触控电路之间切换，使触控装置能在电容式触控模式和/或电磁式触控模式之间切换，扩大了触控装置的应用场景。此外，将电容式触控模式下的感测信号线与电磁式触控模式下的感测信号线共线设置，可以不需要增加现有触控装置的厚度，有利于触控装置轻薄化设计。
以上对本申请实施例所提供的一种触控装置进行了详细的介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种触控装置，其中，包括触控基板，所述触控基板包括基底和设置在所述基底上的触控电路，所述触控装置还包括与所述触控电路电连接的触控模式切换电路，所述触控模式切换电路控制所述触控电路在电容触控电路与电磁触控电路之间切换，至少部分所述电容触控电路的感测信号线与所述电磁触控电路的感测信号线共线。
  2. 根据权利要求1所述的触控装置，其中，还包括显示面板，位于所述显示面板的显示区上的所述电容触控电路的感测信号线均与所述电磁触控电路的感测信号线共线。
  3. 根据权利要求1所述的触控装置，其中，所述触控电路包括多个第一触控线和多个第二触控线，所述第一触控线与所述第二触控线交错绝缘设置；
    所述触控模式切换电路包括第一开关控制电路和第二开关控制电路，至少两个所述第一触控线与所述第一开关控制电路电连接，至少两个所述第二触控线与所述第二开关控制电路电连接；
    所述第一开关控制电路和所述第二开关控制电路均处于断开模式时，所述至少两个所述第一触控线之间均为断路，所述至少两个所述第二触控线之间均为断路，所述触控电路为互电容触控电路；
    所述第一开关控制电路和所述第二开关控制电路均处于开启模式时，两个所述第一触控线之间电连接，两个所述第二触控线之间电连接，所述触控电路为电磁触控电路。
  4. 根据权利要求3所述的触控装置，其中，所述第一开关控制电路包括第一开关，所述第一开关的两端分别与相邻的两个所述第一触控线电连接；所述第二开关控制电路包括第二开关，所述第二开关的两端分别与相邻的两个所述第二触控线电连接；
    所述触控电路为互电容触控电路时，所述第一开关和所述第二开关均断开，所述相邻两个所述第一触控线断开，所述相邻两个所述第二触控线断开；
    所述触控电路为电磁触控电路时，所述第一开关和所述第二开关均导通，相邻两个所述第一触控线之间电连接，相邻两个所述第二触控线之间电连接。
  5. 根据权利要求3所述的触控装置，其中，所述触控电路为互电容触控电路时，所述第一触控线为发射信号线，所述第二触控线为感测信号线；
    所述触控电路为电磁触控电路时，所述第一触控线和所述第二触控线均为感测信号线。
  6. 根据权利要求3所述的触控装置，其中，所述触控模式切换电路包括触控芯片和开关控制电路，所述第一触控线和所述第二触控线分别与所述触控芯片电连接；
    所述触控电路为互电容触控电路时，所述触控芯片向所述第一触控线输出触控发射信号，所述第二触控线向所述触控芯片反馈触控感测信号；
    所述触控电路为电磁触控电路时，所述触控芯片内置有第一电流测量装置和第二电流测量装置，所述第一电流测量装置的两端分别与相互电连接的两行所述第一触控线电连接，所述第二电流测量装置的两端分别与相互电连接的两列所述第二触控线电连接，所述第一触控线和所述第二触控线向所述触控芯片反馈触控感测信号。
  7. 根据权利要求3所述的触控装置，其中，包括显示面板，所述第一触控线与所述第二触控线分别设置在所述显示面板的盖板的两侧。
  8. 根据权利要求3所述的触控装置，其中，包括显示面板，所述第一触控线与所述第二触控线相互绝缘的设置在所述显示面板的盖板的同侧。
  9. 根据权利要求3所述的触控装置，其中，包括显示面板，所述第一触控线与所述第二触控线同层设置，所述第一触控线在与所述第二触控线的交叉处通过位于另一层的导电结构跨接。
  10. 根据权利要求1所述的触控装置，其中，所述触控模式切换电路包括触控芯片和开关控制电路，所述开关控制电路内置于所述触控芯片内。
  11. 根据权利要求1所述的触控装置，其中，所述触控电路包括多个感测电路单元，所述感测电路单元包括第三触控线，所述第三触控线的两端分别与所述触控模式切换电路电连接；
    所述触控模式切换电路包括触控芯片和选择开关控制电路；
    所述选择开关控制电路选择第一通道时，所述第三触控线的第一端与所述触控芯片的第二信号端电连接，所述第三触控线的第二端与所述触控芯片的第一信号端电连接，所述触控电路为电磁触控电路；
    所述选择开关控制电路选择第二通道时，所述第三触控线的第一端与所述第三触控线的第二端导通，所述第三触控线的第二端电连接至所述触控芯片的第一信号端，所述触控电路为自电容触控电路。
  12. 根据权利要求11所述的触控装置，其中，所述感测电路单元包括呈线圈状的第三触控线；
    所述触控电路为电磁触控电路时，所述第三触控线形成线圈状的电磁感测回路，所述第三触控线为电磁感测信号线；
    所述触控电路为自电容触控电路时，所述第三触控线为电容感测信号线。
  13. 根据权利要求11所述的触控装置，其中，所述选择开关控制电路包括多个选择开关，所述第三触控线的第一端与所述选择开关的选择端电连接，所述第三触控线的第二端与所述触控芯片的第一信号端电连接，所述选择开关的第一通道与所述触控芯片的第二信号端电连接，所述选择开关的第二通道与所述触控芯片的第一信号端电连接；
    所述触控切换电路包括分别与所述第三触控线的第一端和第二端电连接的第三电流测量装置。
  14. 根据权利要求13所述的触控装置，其中，所述第三电流测量装置内置于所述触控芯片内。
  15. 根据权利要求1所述的触控装置，其中，包括显示面板，在所述显示面板的一个扫描周期内，所述触控模式切换电路控制所述触控电路在电容触控电路与电磁触控电路之间至少完成一次切换。
  16. 一种触控装置，其中，包括具有显示区的触控基板，所述触控基板包括基底和设置在所述基底上的触控电路，所述触控装置还包括与所述触控电路电连接的触控模式切换电路，所述触控模式切换电路控制所述触控电路在电容触控电路与电磁触控电路之间切换；至少部分所述电容触控电路的感测信号线与所述电磁触控电路的感测信号线共线。
  17. 根据权利要求16所述的触控装置，其中，位于所述显示区上的所述电容触控电路的感测信号线均与所述电磁触控电路的感测信号线共线。
  18. 根据权利要求16所述的触控装置，其中，所述触控电路包括多个第一触控线和多个第二触控线，所述第一触控线与所述第二触控线交错绝缘设置；
    所述触控模式切换电路包括第一开关控制电路和第二开关控制电路，至少两个所述第一触控线与所述第一开关控制电路电连接，至少两个所述第二触控线与所述第二开关控制电路电连接；
    所述第一开关控制电路和所述第二开关控制电路均处于断开模式时，所述至少两个所述第一触控线之间均为断路，所述至少两个所述第二触控线之间均为断路，所述触控电路为互电容触控电路；
    所述第一开关控制电路和所述第二开关控制电路均处于开启模式时，两个所述第一触控线之间电连接，两个所述第二触控线之间电连接，所述触控电路为电磁触控电路。
  19. 根据权利要求16所述的触控装置，其中，所述触控电路包括多个感测电路单元，所述感测电路单元包括第三触控线，所述第三触控线的两端分别与所述触控模式切换电路电连接；
    所述触控模式切换电路包括触控芯片和选择开关控制电路；
    所述选择开关控制电路选择第一通道时，所述第三触控线的第一端与所述触控芯片的第二信号端电连接，所述第三触控线的第二端与所述触控芯片的第一信号端电连接，所述触控电路为电磁触控电路；
    所述选择开关控制电路选择第二通道时，所述第三触控线的第一端与所述第三触控线的第二端导通，所述第三触控线的第二端电连接至所述触控芯片的第一信号端，所述触控电路为自电容触控电路。
  20. 根据权利要求19所述的触控装置，其中，所述感测电路单元包括呈线圈状的第三触控线；
    所述触控电路为电磁触控电路时，所述第三触控线形成线圈状的电磁感测回路，所述第三触控线为电磁感测信号线；
    所述触控电路为自电容触控电路时，所述第三触控线为电容感测信号线。
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