CN117075762A - Electromagnetic capacitance double-touch display panel and display - Google Patents

Electromagnetic capacitance double-touch display panel and display Download PDF

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Publication number
CN117075762A
CN117075762A CN202310806388.3A CN202310806388A CN117075762A CN 117075762 A CN117075762 A CN 117075762A CN 202310806388 A CN202310806388 A CN 202310806388A CN 117075762 A CN117075762 A CN 117075762A
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China
Prior art keywords
electromagnetic induction
parallel
input
output port
port group
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CN202310806388.3A
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Chinese (zh)
Inventor
朱德忠
奚邦籽
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Shenzhen Huadingxing Technology Co ltd
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Shenzhen Huadingxing Technology Co ltd
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Priority to CN202310806388.3A priority Critical patent/CN117075762A/en
Publication of CN117075762A publication Critical patent/CN117075762A/en
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    • 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
    • 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
    • G06F3/04162—Control or interface arrangements specially adapted for digitisers for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Position Input By Displaying (AREA)

Abstract

The invention discloses an electromagnetic capacitance double-touch display panel and a display, wherein the display panel comprises one or more substrates, the substrates are provided with first-direction array antennas and second-direction array antennas in different directions, the first-direction array antennas comprise two groups of parallel electromagnetic induction antenna groups, opposite ends of first electromagnetic induction channel wires of the two groups are connected in parallel, the opposite ends are connected to a first input output port group and a second input output port group, and the display panel also comprises isolated electromagnetic induction channel wires and capacitive touch receiving and transmitting channel wires; one end of a second electromagnetic induction channel line in the second directional array antenna is connected in parallel and connected to the third input/output port group; the directions of the first input/output port group and the second input/output port group are the same as or different from the directions of the third input/output port group. According to the isolated electromagnetic induction channel line, two groups of electromagnetic antenna groups are spliced into the complete antenna array, so that the first electromagnetic induction channel line can lead out wiring in the opposite direction, and the narrow-frame wiring design is realized.

Description

Electromagnetic capacitance double-touch display panel and display
Technical Field
The invention relates to the technical field of display panels, in particular to an electromagnetic capacitive double-touch display panel and a display.
Background
The touch display panel is hardware with a display screen and a touch sensor, the display screen is used for displaying images, and the touch sensor is used for sensing touch operation of a user on the display screen and converting the touch operation into display reaction of the display screen. The size of the touch sensor and the width of the frame determine the appearance style of the whole display panel, and if the frame of the touch sensor is narrower, the screen occupation ratio of the display panel is larger, and the display panel is more attractive. The electromagnetic capacitive touch sensor is composed of an electromagnetic induction array antenna arranged on the display panel, when electromagnetic strokes pass through the electromagnetic induction array antenna, signal changes of the electromagnetic induction array antenna can be caused, and the signals can be read to be converted into operation response of the electromagnetic pen to the display screen.
The electromagnetic touch sensing array antenna of the conventional dual-touch or single-touch sensor in the market is generally formed by overlapping and arranging a plurality of independent closed loop electromagnetic sensing antenna units in two directions, as shown in fig. 24 and fig. 28, the electromagnetic touch sensing array antennas overlapped and arranged in two directions are respectively arranged on two surfaces or two structural layers, the closed loop electromagnetic sensing antenna units of the electromagnetic touch sensing array antenna on each surface or structural layer are overlapped and arranged to form a plurality of intersections, such as the intersections 301d-302d in fig. 25 and fig. 27, the intersections necessarily cause the design of the electromagnetic touch sensing array antenna on the surface or structural layer to need a multi-layer circuit design or an insulation design to be made at the intersections, and the multi-layer circuit or insulation design necessarily causes the production of products to be complicated, the production yield is not easy to control, and the production cost is high; when the double-touch sensor is composed of an electromagnetic sensor and a capacitor, after each capacitive touch receiving and transmitting channel is arranged, two outgoing lines of an electromagnetic antenna unit are required to be arranged, so that the outgoing lines are generally equal to 3 times of the number of the capacitive channels, too many outgoing lines are designed, the peripheral wiring area of the electromagnetic capacitive double-touch display panel is too wide, the design appearance of a product is seriously affected, and the market acceptance is low.
As shown in fig. 20 and 21, two electromagnetic channels of the dual-touch sensor are respectively designed in parallel, and the array antennas of the dual-touch sensor in two directions are respectively led out from one direction, so that too many wires in one direction affect the appearance design of the product and the user and market acceptance.
Disclosure of Invention
In view of the above technical problems, the present invention provides an electromagnetic capacitive dual touch display panel and a display, so as to solve the above mentioned problems.
Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.
According to an aspect of the present invention, an electromagnetic capacitive dual touch display panel is provided, including a display panel body, the display panel is provided with one or more insulating non-magnetic substrates, and a first direction array antenna and a second direction array antenna having different directions are respectively provided on two sides of one substrate or any two sides of any two substrates, wherein:
the first direction array antenna comprises two groups of parallel electromagnetic induction antenna groups and one or more isolated electromagnetic induction channel lines arranged between the two groups of parallel electromagnetic induction antenna groups, wherein the parallel electromagnetic induction antenna groups comprise a plurality of first electromagnetic induction channel lines, opposite ends of the first electromagnetic induction channel lines in the two groups of parallel electromagnetic induction antenna groups are all connected in parallel and are externally grounded or connected with a power supply, and one or more isolated electromagnetic induction channel lines are mutually independent and are respectively connected to the output positions of non-parallel ends of the first electromagnetic induction channel lines in the two groups of parallel electromagnetic induction antenna groups at two ends;
The second direction array antenna comprises a plurality of second electromagnetic induction channel lines, and one ends of the second electromagnetic induction channel lines are connected in parallel and externally grounded or connected with a power supply;
and a capacitive touch receiving and transmitting channel line is arranged between any two adjacent first electromagnetic induction channel lines, or/and between any two adjacent second electromagnetic induction channel lines, or/and between any two adjacent isolated electromagnetic induction channel lines, or/and between any two adjacent first electromagnetic induction channel lines and the isolated electromagnetic induction channel lines.
Further, the display panel is any one of a TFT liquid crystal panel, an OLED panel and an LCD panel.
Further, the substrate is one or more structure layers which are insulated from each other and are non-magnetic, and display driving circuits of the display panel are arranged in the structure layers.
Further, the non-parallel end of the first electromagnetic induction channel line of the first group of parallel electromagnetic induction antenna groups is connected to a first input-output port group through a first lead-out wiring, the parallel end thereof is connected to a second input-output port group through a second lead-out wiring, the parallel end of the first electromagnetic induction channel line of the second group of parallel electromagnetic induction antenna groups is connected to the first input-output port group through the first lead-out wiring, and the non-parallel end thereof is connected to the second input-output port group through the second lead-out wiring;
Two ends of one or more isolated electromagnetic induction channel wires are connected to the first input-output port group and the second input-output port group through the first lead-out wiring and the second lead-out wiring respectively;
the parallel ends and the other ends of the second electromagnetic induction channel wires are connected to a third input/output port group through third lead-out wiring;
the directions of the first input/output port group, the second input/output port group and the third input/output port group relative to the substrate are the same or different;
any one of the capacitive touch transceiver channel lines is connected to the first input/output port group, the second input/output port group or the third input/output port group
Further, one end of the first electromagnetic induction channel line of the parallel electromagnetic induction antenna group is connected in parallel through a first parallel network, a first outgoing line extending from the first parallel network is connected to the second input/output port group through a second outgoing line, one end of the first electromagnetic induction channel line of the parallel electromagnetic induction antenna group opposite to or opposite to the first parallel network is connected in parallel through a second parallel network, a second outgoing line extending from the second parallel network is connected to the first input/output port group through the first outgoing line, and the first outgoing line and the second outgoing line are grounded or powered outside.
Further, one end, far away from the first parallel network, of the capacitive touch receiving and transmitting channel line between the first parallel electromagnetic induction antenna groups is connected to the first input/output port group through the first lead-out wiring, one end, far away from the second parallel network, of the capacitive touch receiving and transmitting channel line in the second parallel electromagnetic induction antenna groups is connected to the second input/output port group through the second lead-out wiring, and any end, not between the first and second parallel electromagnetic induction antenna groups, of the capacitive touch receiving and transmitting channel line is connected to the corresponding first input/output port group or second input/output port group through the first lead-out wiring or/and the second lead-out wiring.
Further, a first group of the plurality of first electromagnetic induction channel lines of the parallel electromagnetic induction antenna group are combined into a plurality of closed-loop electromagnetic induction antenna units with different interval periods through the first parallel network, and a second group of the plurality of second electromagnetic induction channel lines of the parallel electromagnetic induction antenna group are combined into a plurality of closed-loop electromagnetic induction antenna units with different interval periods through the second parallel network.
Further, the isolated electromagnetic induction channel lines between the first group and the second group of parallel electromagnetic induction antenna groups are respectively connected with the first parallel network or/and the second parallel network in short circuit and parallel through logic switches connected to the first input output port group and the second input output port group, so that the isolated electromagnetic induction channel lines and the first electromagnetic induction channel lines in the first group or/and the second group of parallel electromagnetic induction antenna groups form a plurality of closed loop electromagnetic induction antenna units with preset interval periods.
Further, one ends, far away from the third input/output port group, of the second electromagnetic induction channel lines are connected in parallel through a third parallel network, a third outgoing line and a fourth outgoing line are respectively arranged at two ends of the third parallel network, the third outgoing line and the fourth outgoing line are connected to the third input/output port group through a third outgoing line wiring, and the third outgoing line and the fourth outgoing line are grounded or connected with a power supply outside.
Further, the third input/output port group is located below the first parallel electromagnetic induction antenna group, and the first input/output port group and the second input/output port group are respectively located at parallel sides of the two parallel electromagnetic induction antenna groups; or (b)
The first input/output port group, the second input/output port group and the third input/output port group are all positioned below the first parallel electromagnetic induction antenna group.
According to another aspect of the present invention, there is provided an electromagnetic capacitive dual touch display, the display comprising a display panel as described above.
The technical scheme of the present disclosure has the following beneficial effects:
based on the electromagnetic capacitance double-touch display panel, the arranged first-direction array antenna on the substrate comprises two groups of electromagnetic induction antenna groups, more than one isolated electromagnetic induction channel line is arranged between the two groups of electromagnetic induction antenna groups and used for seamlessly splicing the two groups of electromagnetic induction antenna groups of the first-direction array antenna into a complete antenna array, the first electromagnetic induction channel line in the arrangement and the splicing can lead out wiring along two opposite directions, the distributed wiring can realize narrow-frame wiring design of the whole touch screen, the design and the application are facilitated, the whole display panel has beautiful product appearance design, and the market acceptance is high;
the two electromagnetic induction antenna groups of the first direction array antenna are externally grounded or connected with a power supply through a first lead-out wire and a second lead-out wire which are arranged, so that noise interference of noise of other channels on the current detection channel can be eliminated, the internal resistance of a signal source of the current detection channel can be reduced, and external interference noise coupled to the current detection channel is weakened by a partial pressure bypass; the third parallel network of a plurality of second electromagnetic induction channel lines of the second directional array antenna is respectively provided with a third outgoing line and a fourth outgoing line along opposite directions and is externally grounded or connected with a power supply, and the third parallel network can eliminate noise interference of other channels on the current detection channel, reduce the internal resistance of a signal source of the current detection channel and weaken external interference noise coupled to the current detection channel by a partial pressure bypass; therefore, the stability of signal transmission of the whole display panel is high, and the touch sensitivity is high and smooth due to the reduction of interference.
The electromagnetic induction array antenna unit formed by a plurality of second electromagnetic induction channel wires in the second direction array antenna is respectively provided with a third outgoing wire and a fourth outgoing wire along opposite directions due to a third parallel network, when the electromagnetic touch pen moves to the third outgoing wire, the connection of the third outgoing wire where the electromagnetic pen is positioned to the ground or the power supply can be detected and controlled to be disconnected by an external circuit, and the connection of the fourth outgoing wire to the ground or the power supply is controlled to eliminate the signal interference of the third outgoing wire where the current pen is positioned to the nearby electromagnetic induction channel wires when the current pen touches the display panel, and meanwhile, the external interference noise coupled to the current detection channel is weakened by the external grounding or the power supply of the third parallel network through a partial pressure bypass;
the electromagnetic induction channel lines, the capacitance induction channel lines and the plurality of lead-out wirings of the two-direction array antenna of the electromagnetic capacitance double-touch inductor which are connected in parallel in groups are not crossed on the surface or the structural layer where the respective array channels are arranged, so that the channel lines and the wirings can be designed in a single-layer mode, the design and the manufacture of the single-layer pattern wiring are simple, the manufacturing yield is high, and the cost is low.
The first electromagnetic induction channel line, the second electromagnetic induction channel line, the first lead-out wiring, the second lead-out wiring and the third lead-out wiring of the array antenna in two directions of the touch display panel are not crossed on the surface or the structural layer provided by the respective array channels, so that the circuits such as the channel line, the wiring and the like can be designed on the respective surface or the structural layer in a single-layer manner, and the single-layer pattern wiring is simple in design, production and manufacture, high in manufacturing yield and low in cost;
The double-touch sensor has the capacitance touch sensing function, also has the fine electromagnetic pen writing and drawing function, can be applied to a drawing board with the touch writing function, can be applied to a product with the touch writing function and the display function, and can be integrated in any electrode layer on or in the surface of a liquid crystal display screen or an OLED display screen to form a display screen module with the capacitance touch and electromagnetic pen writing sensor, so that the application field is very wide.
Drawings
Fig. 1A is a structural view of a display panel having a multi-layered substrate according to the present invention;
FIG. 1B is a block diagram of a display panel having a single layer substrate of the present invention;
FIG. 1C is a schematic diagram of a touch sensor of a display panel according to the present invention;
FIG. 1D is a block diagram of another display panel of the present invention;
fig. 2A is a schematic diagram showing the effects of the first directional array antenna and the second directional array antenna after the capacitive touch transceiver channel line is disposed;
fig. 2B is a schematic diagram of the effect of the second first direction array antenna and the second direction array antenna after the capacitive touch transceiver channel line is set;
fig. 3 is a structural diagram of a second directional array antenna of two display panels of the present invention;
Fig. 4A is a block diagram of a first directional array antenna of the present invention;
fig. 4B is a block diagram of a second first directional array antenna of the present invention;
FIG. 4C is a block diagram of a second set of parallel electromagnetic induction antenna groups of the first directional array antennas of two display panels of the present invention;
fig. 4D is a block diagram of a first set of parallel electromagnetic induction antenna groups of the first directional array antennas of two display panels of the present invention;
FIG. 5 is a block diagram of an equivalent closed loop electromagnetic induction antenna unit formed by connecting electromagnetic induction channel lines of the present invention in series through a first parallel network, or a second parallel network or a third parallel network;
fig. 6 is an equivalent circuit diagram of an external receiving front stage amplifying connection electromagnetic induction antenna unit of a dual touch sensor according to the present invention;
fig. 7 is a schematic diagram of 4 equivalent closed loop electromagnetic induction antenna units formed by combining a second parallel electromagnetic induction antenna group of the first directional array antenna according to the present invention in series-parallel through a second parallel network;
fig. 8 is a block diagram of 3 equivalent closed loop electromagnetic induction antenna units combined in series-parallel by a first parallel network of a first group of parallel electromagnetic induction antenna units of a first directional array antenna of the present invention;
FIG. 9 is a block diagram of a closed loop electromagnetic induction antenna unit formed by a second set of parallel electromagnetic induction antenna groups in line communication with an isolated electromagnetic induction channel of the present invention and an external preset switch;
FIG. 10 is a block diagram of a closed loop electromagnetic induction antenna unit formed by a first set of parallel electromagnetic induction antenna groups and an isolated electromagnetic induction channel line connected with an external preset switch according to the present invention;
FIG. 11 is a block diagram of 14 equivalent closed loop electromagnetic induction antenna units combined in series-parallel by a third parallel network for a second electromagnetic induction channel line of the present invention;
FIG. 12 is a schematic diagram of a second electromagnetic induction channel line of the present invention with a third outgoing line and a fourth outgoing line disposed in opposite directions of a third parallel network to prevent interference with nearby channel lines;
FIG. 13 is a block diagram of a display of the present invention;
FIG. 14 is a block diagram of a dual mode touch sensor of the prior art;
fig. 15 is a block diagram of a second directional array antenna of a touch sensor in the prior art;
fig. 16 is a block diagram of a first directional array antenna of a touch sensor in the prior art;
FIG. 17 is a schematic diagram of an equivalent closed loop electromagnetic induction antenna unit formed by connecting electromagnetic induction channel lines of a first direction array antenna and a second direction array antenna of a touch sensor in series with a parallel network in the prior art;
fig. 18 is an equivalent reference circuit diagram of an external receiving front-stage amplifying connection electromagnetic induction antenna unit of a touch sensor in the prior art;
Fig. 19 is a schematic diagram showing 13 equivalent closed-loop electromagnetic induction antenna units formed by combining electromagnetic induction channel lines of a first direction array antenna of a touch sensor in the prior art in series-parallel through a parallel network;
fig. 20 is a schematic diagram of 14 equivalent closed loop electromagnetic induction antenna units formed by combining electromagnetic induction channel lines of a second direction array antenna of a touch sensor in the prior art in series-parallel through a parallel network;
FIG. 21 is a schematic diagram of a touch sensor with lead wires and I/O interfaces on both sides;
FIG. 22 is a schematic diagram of another touch sensor of the prior art;
FIG. 23 is a block diagram of a second directional array antenna of another touch sensor of the prior art;
FIG. 24 is a block diagram of a first directional array antenna of another touch sensor of the prior art;
FIG. 25 is a block diagram of an independent closed loop electromagnetic induction antenna unit of another touch sensor of the prior art;
FIG. 26 is a schematic diagram of a first directional array antenna of another prior art touch sensor comprising separate closed loop electromagnetic induction antenna elements;
FIG. 27 is a schematic diagram of a second directional array antenna of another prior art touch sensor comprising separate closed loop electromagnetic induction antenna elements;
Fig. 28 is a schematic diagram of a design of a touch sensor with lead wires and input/output interfaces on two sides.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1A to 1D, an embodiment of the present disclosure provides an electromagnetic capacitive dual-touch display panel, which includes a display panel body, one or more insulating non-magnetic substrates 100a are disposed on a display panel 100T, and a first directional array antenna and a second directional array antenna with different directions are disposed on two sides of one substrate 100a or on any two sides of any two substrates 100a, respectively.
The substrate 100a may be any insulating non-magnetic substrate, the insulating non-magnetic substrate 100a may be a PET film, a glass plate, an FR4 glass fiber substrate, or the like, and the first direction array antenna and the second direction array antenna are disposed on the opposite sides of the insulating non-magnetic substrate 100a and are insulated from each other, i.e. a single substrate is disposed on both sides, as shown in fig. 1B. A plurality of insulating and non-magnetic substrates 100a may be stacked on the display panel 100T, where each surface of two insulating and non-magnetic substrates 100a is provided with a first directional array antenna and a second directional array antenna, as shown in fig. 1A and 1C. One or more substrates and first and second directional array antennas disposed thereon constitute a touch sensor 100.
The display panel 100T may be any of a TFT liquid crystal panel, an OLED panel, and an LCD panel. Any other panel having a display function may be used.
As shown in fig. 1D, the substrate 100a is one or more structure layers that are insulated from each other and are non-magnetic, and display driving lines of the display panel 100T are disposed in the structure layers. Specifically, the structural layers include a first structural layer 100e and a second structural layer 100f,
referring to fig. 2A, in the touch sensor 100, the first directional array antenna includes two parallel electromagnetic induction antenna groups and one or more isolated electromagnetic induction channel lines 102e disposed between the two parallel electromagnetic induction antenna groups, each parallel electromagnetic induction antenna group includes a plurality of first electromagnetic induction channel lines 102A1 and 102A2, opposite ends of the plurality of first electromagnetic induction channel lines 102A1 in the two parallel electromagnetic induction antenna groups are all parallel and are externally grounded or connected to a power supply through a first parallel network 102d1 and a second parallel network 102d2, respectively, non-parallel ends of the first electromagnetic induction channel lines 102A1 of the first parallel electromagnetic induction antenna groups are connected to the first input/output port group 109a through a first lead-out wiring 107a, parallel ends of the first lead-out lines LYG1 of the first parallel electromagnetic induction antenna groups are connected to the second input/output port group 109b through a second lead-out wiring 107b, parallel ends of the first electromagnetic induction channel lines 102A2 of the second parallel electromagnetic induction antenna groups are connected to the second input/output port group 109b through a first lead-out wiring 107b, and the non-parallel ends of the second parallel electromagnetic induction channel lines 102A2 of the second parallel electromagnetic induction antenna groups are independently connected to the first input/output port groups through a first lead-out wiring 107b and the second lead-out wiring 107 b.
Specifically, one end of the first parallel electromagnetic induction antenna group is connected in parallel through the first parallel network 102d1, the first outgoing line LYG1 extending from the first parallel network 102d1 is connected to the second input/output port group 109b through the second outgoing line 107b, the plurality of first electromagnetic induction channel lines 102a2 in the second parallel electromagnetic induction antenna group are connected in parallel with the opposite end of the first parallel network 102d1 through the second parallel network 102d2, and the second outgoing line LYG2 extending from the second parallel network 102d2 is connected to the first input/output port group 109a through the first outgoing line 107 a.
In fig. 4A to 4B, isolated electromagnetic induction channel lines 102e are provided between a first group of parallel electromagnetic induction antenna groups and a second group of parallel electromagnetic induction antenna groups of the first-direction array antenna, these isolated electromagnetic induction channel lines 102e are not connected to each other, are not directly connected to other electromagnetic induction channel lines on the inductor 100, and a first lead-out wiring 107a and a second lead-out wiring 107B provided at both ends of each isolated electromagnetic induction channel line 102e in opposite directions are connected to the first input-output port group 109a and the second input-output port group 109B, respectively.
Based on this, taking fig. 2A as an example, the first parallel network 102d1 is disposed on the right side of the lower portion of the substrate 100a, the second parallel network 102d2 is disposed on the left side of the upper portion of the substrate 100a, the first lead-out wiring 107a and the second lead-out wiring 107b respectively correspond to lead out the first electromagnetic induction channel line 102A1 and the first electromagnetic induction channel line 102A2 in opposite directions to be respectively connected to the first input output port group 109a and the second input output port group 109b, and the left end and the right end of the isolated electromagnetic induction channel line 102e are respectively led out to be connected to the first input output port group 109a and the second input output port group 109b.
In order to reduce and bypass the external noise interference, the parallel networks of the two parallel electromagnetic induction antenna groups respectively extend the first outgoing line LYG1 and the second outgoing line LYG2 and respectively lead out to the external ground or the power supply through the second outgoing wiring 107b and the first outgoing wiring 107 a. Based on the design of the first outgoing line LYG1 and the second outgoing line LYG2, the design is equivalent to directly connecting the lines in the first array direction electromagnetic channel cross line area 302d of the prior art dual-touch sensor of fig. 21 and 27 in parallel, and complex cross lines and cross insulation treatment in the cross overlap area 302d do not need to be considered and set, so that the production and manufacture of the line pattern of the sensor 100 are simple, the fault risk is low, and the yield is high.
As shown in fig. 2A to 3, the second directional array antenna includes a plurality of second electromagnetic induction channel lines 101a, one ends of the plurality of second electromagnetic induction channel lines 101a are connected in parallel with each other and are grounded or connected to a power source externally, and the parallel ends and the other ends thereof are connected to a third input/output port group 108 through third lead-out wirings 106, respectively.
Specifically, one end of the plurality of second electromagnetic induction channel lines 101a is connected in parallel through a third parallel network 101d, two ends of the third parallel network 101d are respectively provided with a third outgoing line LXG1 and a fourth outgoing line LXG2, the third outgoing line LXG1 and the fourth outgoing line LXG2 are connected to a third input/output port group 108 through a third outgoing line wiring 106, and the third outgoing line LXG1 and the fourth outgoing line LXG2 are also grounded or connected to a power supply externally. The design equivalent to the first lead line LYG1 and the second lead line LYG2 directly connects the lines in the second array direction electromagnetic channel cross line area 301d of the prior art dual-touch sensor of fig. 22 and 28 in parallel, and does not need to consider and set the complex cross line and cross insulation process in the cross overlap area 301d, so that the production and manufacture of the line pattern of the sensor 100 is simple, the fault risk is low, and the yield is high. Similarly, to reduce and bypass external noise interference, the third lead line LXG1 and the fourth lead line LXG2 are connected to the third input/output port group 108 through the third lead wiring 106 to the external ground or power supply.
Based on the above description about the first directional array antenna and the second directional array antenna, as shown in fig. 2A, the directions of the first input/output port 109a and the second input/output port 109b and the layout direction of the third input/output port 108 may be the same, that is, the layout is along the same side, and none of the wires in the first, second and third input/output port groups 109a, 109b and 108 are located below the first parallel electromagnetic induction antenna group, and the wires in the first, second and third input/output port groups 109a, 109b and 108 are respectively combined to form the first, second and third lead-out wires 107a, 107b and 106, and the wires in the first, second and third lead-out wires 107a and 106 are not intersected, and do not overlap, so that all the wires in the first, second and third input/output port groups 100a and 108 a on one side of the substrate 100a of the touch sensor can be respectively manufactured with the first, second, first and second electromagnetic induction wires 102A, 102A and second, and one-sided electromagnetic induction channels 102d, 102A and 102 b on the first, and second and other parallel electromagnetic induction channels 102A and 102d, respectively.
In an embodiment, as shown in fig. 2A and fig. 2B, in order to implement a capacitive touch function, capacitive touch transceiving channel lines 102f and 101f are further disposed in the first directional array antenna and the second directional array antenna, specifically, capacitive touch transceiving channel lines 101f are disposed between any two adjacent first electromagnetic induction channel lines 102A1, any two adjacent first electromagnetic induction channel lines 102A2, or/and any two adjacent isolated electromagnetic induction channel lines 102e, or/and between any two adjacent first electromagnetic induction channel lines 102A1 or 102A2 and the isolated electromagnetic induction channel line 102e in the touch effective area 103, and capacitive touch transceiving channel lines 101f are disposed between any two adjacent second electromagnetic induction channel lines 101 a.
The capacitive touch transceiver channel line 102f arranged between LY1 and LY6 in the first electromagnetic induction channel line 102a1 of the first parallel electromagnetic induction antenna group of the first directional array antenna is routed along the direction of the first lead-out wiring 107a of the first parallel electromagnetic induction antenna group; the capacitive touch transceiver channel lines 102f arranged between LY10 to LY16 in the first electromagnetic induction channel lines 102a1 of the second parallel electromagnetic induction antenna group are routed in the direction of the second lead-out wiring 107b of the second parallel electromagnetic induction antenna group; the first lead-out wiring 107a direction of the first electromagnetic induction channel line 102a1 and the capacitive touch receiving and transmitting channel line 102f therebetween in the first group of parallel electromagnetic induction antenna groups and the second lead-out wiring 107b direction of the second electromagnetic induction channel line 102a2 and the capacitive touch receiving and transmitting channel line 102f therebetween in the second group of parallel electromagnetic induction antenna groups are disposed at opposite or facing end positions.
Among them, a capacitive touch receiving and transmitting channel line 102f is provided between the two parallel electromagnetic induction antenna groups and the isolated electromagnetic induction channel line 102e, and the capacitive touch receiving and transmitting channel line 102f between the two parallel electromagnetic induction antenna groups and the isolated electromagnetic induction channel line 102e is routed in the direction of the first lead-out wiring 107a of the first parallel electromagnetic induction antenna group, or in the direction of the second lead-out wiring 107b of the second parallel electromagnetic induction antenna group, or in part in the direction of the first lead-out wiring 107a of the first parallel electromagnetic induction antenna group, and in part in the direction of the second lead-out wiring 107b of the second parallel electromagnetic induction antenna group.
In summary, the first direction array antenna, the first parallel network 102d1, and the first lead-out wire 107a and the second lead-out wire 107b of the second parallel network 102d2 of the first direction antenna array are opposite or opposite-end scattered wires, so that the width space occupied by the first lead-out wire 107a and the second lead-out wire 107b is very narrow.
In the second directional antenna array, a capacitive touch receiving and transmitting channel line 101f is disposed between any two adjacent second electromagnetic induction channel lines 101a, and the capacitive touch receiving and transmitting channel line 101f and the second electromagnetic induction channel line 101a are routed to a third input/output port group 108 along the same direction, that is, along a third lead-out wiring 106.
In an embodiment, as shown in fig. 5, a plurality of first electromagnetic induction channel lines 102a1 of a first parallel electromagnetic induction antenna group are combined into a plurality of closed-loop electromagnetic induction antenna units with different interval periods through a first parallel network 102d1, and a plurality of first electromagnetic induction channel lines 102a2 of a second parallel electromagnetic induction antenna group are combined into a plurality of closed-loop electromagnetic induction antenna units with different interval periods through a second parallel network 102d 2.
At least one isolated electromagnetic induction channel line 102e is short-circuited and connected in parallel with the first parallel network 102d1 or/and the second parallel network 102d2 through a logic switch 104 connected to the first input/output port group 109a and the second input/output port group 109b, respectively, so that a closed-loop electromagnetic induction antenna unit with a preset interval period is formed with the different first electromagnetic induction channel lines 102a1 or 102a2, wherein the first electromagnetic induction channel lines can be in the first parallel electromagnetic induction antenna group or the second parallel electromagnetic induction antenna group.
One end (LY 1 to LY 6) of a first electromagnetic induction channel line 102a1 of a first parallel electromagnetic induction antenna group of the first directional array antenna is parallel to the first parallel network 102d1 and may be combined into a plurality of closed loop electromagnetic induction antenna units with preset interval periods, such as an equivalent circuit of fig. 5 or Y1 to Y3 of fig. 8, and the antenna units Y1 to Y3 of fig. 8 have a center tap LYG1G as the equivalent antenna units of fig. 5, and these taps are parallel to form the first parallel network 102d1 of the first parallel electromagnetic induction antenna group; the first electromagnetic induction channel line 102a2 (LY 10 to LY 16) of the second parallel electromagnetic induction antenna group of the first directional array antenna and the second parallel network 102d2 are connected in parallel to form a plurality of closed loop electromagnetic induction antenna units with preset interval periods, and the antenna units Y10 to Y13 of fig. 7 have a center tap LYG2 as the equivalent antenna units of fig. 5, and the taps are connected in parallel to form the second parallel network 102d2 of the second parallel electromagnetic induction antenna group; the isolated electromagnetic induction channel lines 102e are respectively connected in short circuit and in parallel with the first parallel network 102D1 of the first parallel electromagnetic induction antenna group through the logic switches 104 connected to the second input/output interface group 109b, and can be respectively combined into closed loop electromagnetic induction antenna units Y4 to Y6 with preset interval periods as shown in fig. 10, C shown in fig. 10 is a schematic circuit diagram of connection between Y4 to Y6 and the external logic switches 104 on the second input/output interface group 109b, D shown in fig. 10 is a final equivalent schematic circuit diagram of connection between Y4 to Y6 and the external logic switches 104, and center taps of the closed loop electromagnetic induction antenna units are connected in parallel with the first outgoing lines LYG1 of the first parallel network 102D1 of the first parallel electromagnetic induction antenna group; the isolated electromagnetic induction channel lines 102e are respectively connected in short circuit and parallel with the second parallel network 102d2 of the second parallel electromagnetic induction antenna group through the logic switch 104 connected to the first input/output port group 109a, and can be respectively combined into closed loop electromagnetic induction antenna units Y7 to Y9 with preset interval periods in fig. 9, a shown in fig. 9 is a schematic circuit diagram of connection of Y7 to Y9 with the external logic switch 104 on the first input/output port group 109a, B shown in fig. 9 is a final equivalent schematic diagram of connection of Y7 to Y9 with the external logic switch 104, and center taps of the closed loop electromagnetic induction antenna units are connected in parallel with the second outgoing line LYG2 of the second parallel network 102d2 of the second parallel electromagnetic induction antenna group.
Specifically, the first electromagnetic induction channel lines 102a1 of the first parallel electromagnetic induction antenna group of the first directional array antenna can be equivalently combined into three closed-loop electromagnetic induction antenna units with interval period of 3 in series-parallel through the first parallel network 102d1, as shown in fig. 8; the first electromagnetic induction channel lines 102a2 of the second parallel electromagnetic induction antenna group can be equivalently combined into four closed-loop electromagnetic induction antenna units with interval period of 3 in series-parallel through a second parallel network 102d2, as shown in fig. 7; the interval period of the closed-loop electromagnetic induction antenna unit formed by equivalently combining the first electromagnetic induction channel lines 102a1 and 102a2 of the two parallel electromagnetic induction antenna groups is set by logic gating of the logic switch 104 connected to the external interface circuits of the first input output port group 109a and the second input output port group 109b, and may be set to be 3, that is, LY1 in the first electromagnetic induction channel line 102a1 forms the closed-loop electromagnetic induction antenna unit Y1 through the first parallel network 102d1 series-parallel LY4, LY3 forms the closed-loop electromagnetic induction antenna unit Y2 through the first parallel network 102d1 series-parallel LY5, LY2 forms the closed-loop electromagnetic induction antenna unit Y3 through the first parallel network 102d1 series-parallel LY6, LY10 forms the closed-loop electromagnetic induction antenna unit Y10 through the second parallel network 102d2 series-parallel LY13, LY11 forms the closed-loop electromagnetic induction antenna unit Y11 through the second parallel network 102d2 series-parallel LY14, and so on forms the closed-loop electromagnetic induction antenna units Y12, Y13, Y14.
More than one number of isolated electromagnetic induction channel lines 102e are arranged between two parallel electromagnetic induction antenna groups of the first direction array antenna, and the isolated electromagnetic induction channel lines 102e are not connected with each other and other electromagnetic induction channel lines. The isolated electromagnetic induction channel line 102e is connected to the adjacent first electromagnetic induction channel lines 102a1, 102a2 of the two parallel electromagnetic induction antenna groups through the logic gate of the logic switch 104, which is the external logic gate switch circuit in the first input/output port group 109a and the second input/output port group 109b, respectively, as indicated by A, C in fig. 9 and 10, to indicate that the outgoing lines LYG1 and LYG2 of the first parallel network 102d1 and the second parallel network 102d2 are periodically connected to the external logic switch 104 at preset intervals in the first input/output port group 109a and the second input/output port group 109 b. As indicated by B, D in fig. 9 and 10, B, D in fig. 9 and 10 are the complete electromagnetic induction array antennas of the first-direction array antenna formed by connecting and equivalently combining the isolated electromagnetic induction channel line 102e with the external logic switch 104 on the first input output port group 109a and the second input output port group 109b, and the Y4-Y9 closed loop electromagnetic induction antenna units seamlessly splice the Y1-Y3 closed loop electromagnetic induction antenna units of the first-direction array antenna and the Y10-Y13 closed loop electromagnetic induction antenna units of the second-direction array antenna.
Unlike the above, in another embodiment, as shown in fig. 2B and 4B, the first input/output port group is labeled 109c and the second input/output port group is labeled 109d, the first outgoing line is labeled 107c, the second outgoing line is labeled 107d, and the first input/output port group 109c and the second input/output port group 109d are respectively located at two sides of the two parallel electromagnetic induction antenna groups, so that the first input/output port group 109c, the second input/output port group 109d, and the third input/output port group 108 form three directional distribution, and compared with the distribution manner in which the first input/output port group 109a, the second input/output port group 109B, and the third input/output port group 108 in fig. 2A and 4B are simultaneously concentrated at the bottom of the substrate, the occupied area of the bottom can be greatly reduced, and the bottom frame is narrowed. The first input/output port group 109c and the second input/output port group 109d may be located on the same side as the third input/output port group 108, respectively.
Based on the same idea, as shown in fig. 13, an electromagnetic capacitive dual touch display is also shown, which includes a display panel 100T as described above, where the display panel T includes a sensor 100 as described above, specifically, a light emitting display surface of the display panel 100T is provided with the sensor 100, and the display may further include a control circuit board 100G, a housing, and the like.
As known from the above embodiments, the present disclosure has the following features:
the following features are based on analysis from the control techniques provided in fig. 14-28, but this is not meant to imply that fig. 14-28 are prior art disclosures.
The first electromagnetic induction channel lines 102A1 and 102A2 of the array antennas in the first direction in the inductor of the electromagnetic capacitive dual touch display panel are grouped and connected in parallel in opposite directions to form two parallel electromagnetic induction antenna groups, and an isolated electromagnetic induction channel line 102e is arranged between the two parallel electromagnetic induction antenna groups, which can lead out wires of all the array antennas in the direction and a parallel network to be scattered into two opposite direction lead out wires, and the scattered lead out wires occupy a narrow width space of a frame, as shown by D11a, D11B, D11c and D11D in fig. 2A-2B and fig. 4A-4B, and the product can be designed to narrow the frame. As shown in fig. 14, two array antennas of a dual-mode touch sensor technology are shown in fig. 15 and 16, wherein electromagnetic induction channel lines in each array direction are connected in parallel at one end, and the array antenna in each direction of the technology can only lead out wires in one direction, such as 206 and 207b, the lead-out wire occupation width D21b of the frame of the electromagnetic capacitive touch sensor disclosed in summary is about twice the lead-out wire occupation widths D11a and D11b of the electromagnetic capacitive touch sensor of the invention, and the lead-out wire occupation width D21D of the frame of the electromagnetic capacitive touch sensor provided in fig. 21 is about twice the lead-out wire occupation widths D11c and D11D of the electromagnetic capacitive touch sensor of the invention, so that the products applied by the electromagnetic capacitive touch sensor in fig. 14, 21 and 28 provided in fig. 14 have no market competitiveness; as another electromagnetic capacitive touch sensor in the provided technology, as shown in fig. 22, each independent closed-loop electromagnetic induction antenna unit is formed by connecting two electromagnetic induction channel lines 301a or 302A and channel jumpers of crossing areas 301D and 303D in series, one capacitive touch receiving channel line 301f and 302f is arranged in the middle of each independent closed-loop electromagnetic induction antenna unit, each electromagnetic induction channel line 301a or 302A and each capacitive touch receiving channel line 301f and 302f is respectively provided with one lead-out wiring 306, 307b and 307D, and 3 channel lead-out wires 306, 307b and 307D are almost needed to be arranged for each capacitive touch receiving channel line 301f and 302f, respectively, and the array antenna in each direction in this technology is also respectively led out from one direction, as shown in fig. 22 and 28, the occupation width D31b of the lead-out wiring of the frame of the electromagnetic capacitive touch sensor in this technology is much larger than the lead-out wiring D11a and D11 after the addition of the capacitive touch channel lines 101f and 102f in fig. 2A.
A large-sized touch sensor is generally provided with a large number of channel lines, for example, the number of channels of a 86 inch display capacitive touch sensor is approximately 80 channels in the first direction array and 142 channels in the second direction array. To sum up, if the number of first direction array channels of a dual-mode touch sensor in the prior art is approximately 80×2=160, the number of second direction array channels is 142×2=284, if the design of single-side lead-out wires and input/output interfaces in fig. 14 is adopted, the lead-out wires 207b of the first direction array channels are approximately 160 wires, and one end of the lead-out wires, such as the line width of one lead-out wire, is 60 micrometers, the gap between the wires is calculated to be 60 micrometers, and the width D21b occupied by the lead-out wires of the first direction array channels is calculated to be approximately (60 micrometers+60 micrometers) 160=19.2 millimeters, if the design of two-side lead-out wires and input/output interfaces is adopted in fig. 21, the width D21D occupied by the lead-out wires of the first direction array channels is approximately (60 micrometers+60 micrometers) 160/2=9.6 millimeters; as shown in fig. 22, the number of first direction array channels is approximately 80×3=240, the number of second direction array channels is 142×3=426, if the single-side lead-out wires and the input/output interface are designed, the number of lead-out wires 307b of the first direction array channels is approximately 80×3=240, and one end is provided with the lead-out wires, such as 60 micrometers for the line width of one lead-out wire, the gap between wires is 60 micrometers, the calculated width D31b occupied by the lead-out wires of the first direction array channels is approximately (60 micrometers+60 micrometers) ×240=28.8 millimeters, and if the two-side lead-out wires and the input/output interface of fig. 28 are designed, the width D31D occupied by the lead-out wires of the first direction array channels is approximately (60 micrometers+60 micrometers) ×240/2) =14.4 millimeters; if the electromagnetic and capacitive touch sensor design of the disclosure in fig. 2A is adopted, the number of first direction array channels is approximately 80×2=160, the number of second direction array channels is 142×2=284, the first outgoing line 107a and the second outgoing line 107B of the first direction array channels are approximately 160/2=80, for example, the line width of one outgoing line is calculated to be 60 micrometers, the gaps between the lines are calculated to be 60 micrometers, the widths D11a and D11B occupied by the outgoing lines of the first direction array channels are calculated to be approximately (60 micrometers+60 micrometers)/(160/2) =9.6 millimeters, if the technical three-side outgoing line and the input/output interface design of fig. 1B are adopted, the first outgoing line 107c and the second outgoing line 107D of the second direction array channels are approximately 160/2/2=40, for example, the line width of one outgoing line is calculated to be 60 micrometers, the gaps between the lines are calculated to be 60 micrometers, and the widths D11a and D11B occupied by the outgoing line are calculated to be 60 micrometers, so that the electromagnetic sensor design of the first direction array channels can be approximately (60 micrometers+60 micrometers) is realized, and the electromagnetic touch sensor is approximately 160+2 mm. The existing two-mode touch sensor technology (shown in fig. 14 and 21) that two electromagnetic induction channel lines in the array direction are respectively connected in parallel at one end and wiring is led out from one end, the two electromagnetic touch induction channel lines in the array direction cannot be arranged in parallel according to the grouping design of the technology of the invention, and the two groups of the isolated electromagnetic induction combined spliced channel lines 102e are arranged, so that the existing touch sensor technology (shown in fig. 14 and 21) cannot realize the scattered wiring leading out along the opposite direction under the condition that the two directions are both single-layer pattern line designs, and cannot realize narrow frame designs; the other electromagnetic induction antenna unit of the array antenna in two directions adopts an electromagnetic touch sensor technology (as shown in fig. 22 and 28) with independent closed-loop electromagnetic induction antenna units which are arranged in a crossed and overlapped mode, and firstly, the array antenna in two directions cannot achieve scattered wiring leading out in opposite directions, so that the narrow frame design cannot be achieved.
With continued reference to fig. 2A, in the parallel electromagnetic induction antenna group of the first directional array antenna of the electromagnetic capacitive touch sensor disclosed in the present invention, the first outgoing line LYG1, the second outgoing line LYG2, the third outgoing line LXG1, and the fourth outgoing line LXG2 in the first parallel network 102d1, the second parallel network 102d2, and the third parallel network 101d of the second directional array antenna are respectively led to the external ac ground or power supply, so that the external noise (such as SSI in fig. 6) coupled to other channels can be ac-shorted to the external ground or power supply through the first outgoing line LYG1, the second outgoing line LYG2, the third outgoing line LXG1, the fourth outgoing line LXG2, and the logic switch 104, so that the interference to the current detection channel is eliminated, and the prior art electromagnetic capacitive touch sensor (fig. 14, fig. 21) is not provided with the outgoing lines (LYG 1, LYG2, LXG1, LXG 2) of these parallel networks to the external short-circuited noise, so that the noise coupled to other channels easily interferes with the current detection closed loop electromagnetic induction antenna unit. As shown in fig. 6, SSI is noise interference coupled to other electromagnetic induction channel lines, ri is a transmission resistance of noise interference, rsa+ and rsb+ are two-end resistances forming a midpoint of one electromagnetic induction channel line of the current detection closed-loop electromagnetic induction antenna unit with respect to the channel line, rsA-and RsB-are two-end resistances forming a midpoint of the other electromagnetic induction channel line of the current detection closed-loop electromagnetic induction antenna unit with respect to the channel line, S +, S-is an input/output opening of the closed-loop electromagnetic induction antenna unit, LG is a center tap of the closed-loop electromagnetic induction antenna unit, when the center tap LG is ac-shorted to ground or power through a logic switch on the input/output interface, the external noise interference SSI is connected to the first parallel network 102d2, the second parallel network 102d1 and the third parallel network 101d in parallel through the center tap LG, and is short-circuited with the ground or power supply through all external alternating currents of the first outgoing line LYG1, the second outgoing line LYG2, the third outgoing line LXG1 and the fourth outgoing line LXG2, and the external noise interference SSI cannot be transmitted into the first input/output port group 109a, the second input/output port group 109b and the third input/output port group 108 to the P, N input port of the external electromagnetic touch control receiving pre-stage differential amplification and amplification device 111 through RsA+ and RsB+ or RsA-and S+ and S-so as to prevent electromagnetic touch control from being interfered; the parallel network grounding can bypass a part of external noise interference coupled to the current detection closed loop electromagnetic induction antenna unit, but no influence exists on electromagnetic stylus signals detected by the current detection closed loop electromagnetic induction antenna unit, as shown in fig. 6, the voltages of the SiA+ and the SiA-are equivalent to the external noise interference coupled to the middle parts of the current detection closed loop electromagnetic induction antenna unit, rsA+ and RsB+ electromagnetic induction antenna units, when the center tap LG passes through a logic switch AC short circuit ground or a power supply on an input/output interface, the voltages of the external noise interference SiA+ coupled to the RsB+ are equal to the SiA+ (Ri+RsA+), if the voltages of the external AC short circuit of the center tap are not set to the ground or the power supply, the voltages of the external noise interference SiA+ coupled to the RsB+ are completely equal to the SiA+, the absolute values of the voltages of the significant SiA+ (Ri+RsA+), when the center tap LG passes through the same switch AC short circuit ground or the input/output interface, the voltages of the positive and negative to the external noise interference are not equal to the absolute values of the SiA+ are set to the absolute values of the positive and the voltages of the positive and negative to the external noise interference, the values of RsA+ and RsA-and RsB+ and RsB-are not necessarily completely equal, and the difference of common mode rejection of differential amplification is the factor, and the like, once stronger noise interference enters RsB+ and RsB or a P, N input port of the differential amplification 111 before electromagnetic touch receiving, the current detection closed loop electromagnetic induction antenna unit of electromagnetic touch is necessarily interfered;
As shown in fig. 12, when the third parallel network 101d of the second electromagnetic channel line 101a of the display panel with the electromagnetic capacitive dual-touch sensor of the disclosure sets the third outgoing line LXG1 and the fourth outgoing line LXG2 along opposite directions, respectively, and the electromagnetic stylus is between the third outgoing line LXG1 of the third parallel network 101d of the second directional array antenna and the central symmetry line 105 of the second directional array antenna, the circuit control on the third input/output port group 108 disconnects the third outgoing line 106 on the corresponding pin, so that the connection line 101b between the third parallel network and the third outgoing line LXG1 is disconnected from the external ground or power supply and is suspended, and at the same time, the circuit control on the third input/output port group 108 communicates the third outgoing line 106 on the corresponding pin, so that the connection line 101c between the third parallel network 101d and the fourth outgoing line LXG2 is in communication connection with the external ground or power supply, thereby eliminating the touch signal of the touch connection line 101b and the external ground or power supply to be sensed when the electromagnetic stylus 110a moves near the connection line 101b, and simultaneously, and the touch-sensitive signal of the touch-sensitive line 110a near the second outgoing line 101b is further, and the electromagnetic interference resistance of the second touch-sensitive antenna can be increased, and the touch-sensitive antenna can be simultaneously, and the touch-sensitive antenna 3 is located by the second touch-sensitive antenna is further, and the touch-sensitive antenna 3, and the touch-sensitive device is located by the touch-sensitive device; in contrast, when the electromagnetic stylus 110b is between the connecting wire 101c and the central symmetric line 105 of the second directional array antenna, the circuit on the third input/output interface 108 controls to disconnect the third lead-out wiring 106 on the corresponding pin, so that the connecting wire 101c between the third parallel network and the third lead-out line LXG1 is disconnected from the external ground or power supply and suspended, and meanwhile, the circuit on the third input/output port group 108 controls to communicate with the third lead-out wiring 106 on the corresponding pin, so that the connecting wire 101b between the third parallel network 101d and the fourth lead-out line LXG1 is in alternating current conduction connection with the external ground or power supply, thereby eliminating the touch signal induced by the electromagnetic stylus 110b due to the fact that the connecting wire 101c and the external ground or power supply form a closed loop when the electromagnetic stylus 110b moves near the connecting wire 101c, and overlapping the electromagnetic induction channel lines LX17, LX16 and LX15 … … near the connecting wire 101c, thereby interfering the positioning calculation of the electromagnetic stylus, and simultaneously satisfying the improvement of the anti-interference capability of the central tap of the closed loop electromagnetic stylus antenna unit of the second directional array antenna through LXG1 grounding;
The array antenna with two directions of the electromagnetic capacitive dual touch sensor disclosed by the disclosure has no intersection and overlapping on one surface of the body 100, can be designed and manufactured in a single layer, the second electromagnetic induction channel line 101a, the third parallel network 101d, the connecting line 101B of the third parallel network 101d, the connecting line 101c of the third parallel network 101d, the third lead-out wire 106 and the third input/output wire 108 of the array antenna with two directions on the respective structural layers such as the first electromagnetic induction channel line 102A1 and 102A2, the isolated electromagnetic induction channel line 102e, the first parallel network 102d1, the second parallel network 102d2, the first lead-out wire 107a, the second lead-out wire 107B, the first input/output wire 109a and the second input/output wire 109B of the dual touch sensor provided by the disclosure have no intersection and overlapping on the other surface of the body 100, can be designed and manufactured in a single layer, the second electromagnetic induction channel line 101a, the connecting line 101d of the third parallel network 101d, the connecting line 101B of the third parallel network 101d, the connecting line 101c of the third parallel network 101d, the third lead-out wire 106 and the third input/output wire 108 of the dual-touch sensor provided by the disclosure has no intersection and overlapping on the other surface of the two surfaces of the body 100, the first line pattern with two lines 4 of the dual touch sensor provided by the input/output wire set can be designed and manufactured in the single layer, the same line pattern, and the single layer pattern has low cost, and the manufacturing cost is as the array antenna is manufactured by manufacturing the array antenna with the single layer, and has the array antenna with the first line pattern and has the single layer and has the advantages. For example, in the prior art, as the electromagnetic induction array antenna shown in fig. 22 and fig. 28 is formed by arranging and superposing a plurality of independent closed loop electromagnetic induction antenna units, because the independent closed loop electromagnetic induction antenna units on the structural layer where each array antenna is located must be crossed or overlapped, such as 301d and 302d, the graphic circuit of the structural layer where each array direction of the electromagnetic touch sensor is located must be made of double-layer or multi-layer circuits, the cost of making each layer of circuit is doubled, the reject ratio is doubled at least, and the cost is high without market competitiveness;
In summary, the display panel with the electromagnetic capacitance double-touch sensor disclosed by the disclosure has the advantages that all channel lines and lead-out wirings in each direction of the two directional array antennas are not arranged in a crossing way on respective structural layers, and can be designed in a single-layer way respectively, so that the display panel is simple in design and manufacture, and can be directly arranged on the surface of a display screen or integrated on two insulating structural layers which are not magnetically conductive in various liquid crystal display panels or OLED display panels, and the application is very wide in advancing.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art 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 invention. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims below, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims (10)

1. The utility model provides an electromagnetic capacitor double touch control display panel, its characterized in that includes the display panel body, the display panel is provided with one or more insulating non-magnetic conduction base plate, in two sides or any two of base plate the arbitrary face of base plate is provided with respectively and has the first direction array antenna and the second direction array antenna of different directions, wherein:
the first direction array antenna comprises two groups of parallel electromagnetic induction antenna groups and one or more isolated electromagnetic induction channel lines arranged between the two groups of parallel electromagnetic induction antenna groups, wherein the parallel electromagnetic induction antenna groups comprise a plurality of first electromagnetic induction channel lines, opposite ends of the plurality of first electromagnetic induction channel lines in the two groups of parallel electromagnetic induction antenna groups are all connected in parallel and are externally grounded or connected with a power supply, and one or more isolated electromagnetic induction channel lines are mutually independent and are respectively connected to the output positions of the plurality of first electromagnetic induction channel lines in the two groups of parallel electromagnetic induction antenna groups at two ends;
the second direction array antenna comprises a plurality of second electromagnetic induction channel lines, and one ends of the second electromagnetic induction channel lines are connected in parallel and externally grounded or connected with a power supply;
And a capacitive touch receiving and transmitting channel line is arranged between any two adjacent first electromagnetic induction channel lines, or/and between any two adjacent second electromagnetic induction channel lines, or/and between any two adjacent isolated electromagnetic induction channel lines, or/and between any two adjacent first electromagnetic induction channel lines and the isolated electromagnetic induction channel lines.
2. The electromagnetic capacitive dual touch display panel of claim 1, wherein the substrate is one or more structural layers inside the display panel that are insulated from each other and that are non-magnetically conductive, and wherein display drive lines of the display panel are disposed in the structural layers.
3. The electromagnetic capacitive dual touch display panel according to claim 1, wherein non-parallel ends of the first electromagnetic induction channel lines of a first group of the parallel electromagnetic induction antenna groups are connected to a first input-output port group through a first lead-out wiring, parallel ends thereof are connected to a second input-output port group through a second lead-out wiring, parallel ends of the first electromagnetic induction channel lines of a second group of the parallel electromagnetic induction antenna groups are connected to the first input-output port group through the first lead-out wiring, and non-parallel ends thereof are connected to the second input-output port group through the second lead-out wiring;
Two ends of one or more isolated electromagnetic induction channel wires are connected to the first input-output port group and the second input-output port group through the first lead-out wiring and the second lead-out wiring respectively;
the parallel ends and the other ends of the second electromagnetic induction channel wires are connected to a third input/output port group through third lead-out wiring;
the directions of the first input/output port group, the second input/output port group and the third input/output port group relative to the substrate are the same or different;
any one of the capacitive touch receiving and transmitting channel lines is connected to the first input/output port group, the second input/output port group or the third input/output port group.
4. The electromagnetic capacitive dual touch display panel according to claim 3, wherein one end of the first electromagnetic induction channel line of a first group of the parallel electromagnetic induction antenna groups is connected in parallel through a first parallel network, a first outgoing line extending from the first parallel network is connected to the second input-output port group through the second outgoing line, one end of the first electromagnetic induction channel line of a second group of the parallel electromagnetic induction antenna groups opposite or opposite to the first parallel network is connected in parallel through a second parallel network, a second outgoing line extending from the second parallel network is connected to the first input-output port group through the first outgoing line, and the first outgoing line and the second outgoing line are externally grounded or connected to a power supply.
5. The electromagnetic capacitive dual touch display panel according to claim 4, wherein an end of the capacitive touch transceiving channel line located between a first group of the parallel electromagnetic induction antenna groups, which is far from the first parallel network, is connected to the first input-output port group through the first lead-out wiring, an end of the capacitive touch transceiving channel line located between a second group of the parallel electromagnetic induction antenna groups, which is far from the second parallel network, is connected to the second input-output port group through the second lead-out wiring, and any end of the capacitive touch transceiving channel line located between a non-first group and a second group of the parallel electromagnetic induction antenna groups is connected to the corresponding first input-output port group or the second input-output port group through the first lead-out wiring or/and the second lead-out wiring.
6. The electromagnetic capacitive dual touch display panel of claim 4, wherein a first set of the plurality of first electromagnetic induction channel lines of the parallel electromagnetic induction antenna group are combined into a plurality of closed loop electromagnetic induction antenna units of different interval periods through the first parallel network, and a second set of the plurality of second electromagnetic induction channel lines of the parallel electromagnetic induction antenna group are combined into a plurality of closed loop electromagnetic induction antenna units of different interval periods through the second parallel network.
7. The electromagnetic capacitive dual touch display panel of claim 3, wherein the isolated electromagnetic induction channel lines between the first and second groups of parallel electromagnetic induction antenna groups are shorted and connected in parallel with the first parallel network or/and the second parallel network through logic switches connected to the first and second input/output port groups, respectively, so that the isolated electromagnetic induction channel lines and the first electromagnetic induction channel lines in the first or/and the second groups of parallel electromagnetic induction antenna groups form a plurality of closed-loop electromagnetic induction antenna units with preset interval periods.
8. The electromagnetic capacitive dual touch display panel according to claim 3, wherein one ends of the plurality of second electromagnetic induction channel lines far away from the third input-output port group are connected in parallel through a third parallel network, a third outgoing line and a fourth outgoing line are respectively arranged at two ends of the third parallel network, the third outgoing line and the fourth outgoing line are connected to the third input-output port group through third outgoing wiring, and the third outgoing line and the fourth outgoing line are grounded or connected to a power supply at the outside.
9. The electromagnetic capacitive dual touch display panel of claim 3, wherein the third input-output port group is located below a first group of the parallel electromagnetic induction antenna groups, and the first input-output port group and the second input-output port group are respectively located on parallel sides of two groups of the parallel electromagnetic induction antenna groups; or (b)
The first input/output port group, the second input/output port group and the third input/output port group are all positioned below the first parallel electromagnetic induction antenna group.
10. An electromagnetic capacitive dual touch display, characterized in that the display comprises a display panel according to any of claims 1-9.
CN202310806388.3A 2023-06-30 2023-06-30 Electromagnetic capacitance double-touch display panel and display Pending CN117075762A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117712670A (en) * 2023-12-11 2024-03-15 中国人民解放军海军工程大学 Series-parallel stacked array of magnetoelectric antennas and method for establishing equivalent circuit model of series-parallel stacked array

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117712670A (en) * 2023-12-11 2024-03-15 中国人民解放军海军工程大学 Series-parallel stacked array of magnetoelectric antennas and method for establishing equivalent circuit model of series-parallel stacked array

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