CN213751028U - Touch display panel and electronic equipment - Google Patents
Touch display panel and electronic equipment Download PDFInfo
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- CN213751028U CN213751028U CN202022397590.XU CN202022397590U CN213751028U CN 213751028 U CN213751028 U CN 213751028U CN 202022397590 U CN202022397590 U CN 202022397590U CN 213751028 U CN213751028 U CN 213751028U
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Abstract
The utility model relates to a touch-control display panel and electronic equipment. The touch display panel includes: a substrate; the first touch control electrodes are arranged on one side of the substrate at intervals; the second touch electrodes are arranged on one side of the substrate at intervals, the second touch electrodes and the first touch electrodes are arranged in an insulating mode, and the second touch electrodes and the first touch electrodes form a plurality of mutual capacitance capacitors; and the third touch electrodes are arranged at intervals, are respectively insulated from the first touch electrodes and the second touch electrodes, and form self-capacitance with the ground. The utility model discloses a touch-control display panel will hold the touch-control from holding with each other and integrated as an organic whole, carries out waterproof dustproof performance and detects time measuring, can adopt from holding the inductance of holding of touch-control electrode and detecting, has better waterproof performance.
Description
Technical Field
The utility model relates to a touch-control shows the field, concretely relates to touch-control display panel and electronic equipment.
Background
In the conventional mutual capacitance type touch display panel, because the touch electrodes are close to the ground and have a large load, part of the touch electrodes must be set as dummy electrodes (i.e., the electrodes are actually used) to reduce the load of the touch electrodes.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model relates to a touch-control display panel and electronic equipment, it has better waterproof performance.
The utility model provides a touch-control display panel, touch-control display panel includes:
a substrate;
the first touch electrodes are arranged on one side of the substrate at intervals;
the second touch electrodes are arranged on one side of the substrate at intervals, the second touch electrodes and the first touch electrodes are arranged in an insulating mode, and the second touch electrodes and the first touch electrodes form a plurality of mutual capacitance capacitors; and
the plurality of third touch electrodes are arranged at intervals, the third touch electrodes are respectively insulated from the first touch electrodes and the second touch electrodes, and the third touch electrodes and the ground form a self-capacitance capacitor.
Optionally, the touch display panel further includes an encapsulation layer, the encapsulation layer is located on one side of the substrate, and the plurality of first touch electrodes, the plurality of second touch electrodes, and the plurality of third touch electrodes are located on one side of the encapsulation layer away from the substrate.
Optionally, the touch display panel further includes a touch driving chip, and when performing mutual capacitance scanning, the first touch electrode and the second touch electrode are electrically connected to the touch driving chip, the third touch electrode is electrically disconnected from the touch driving chip, the first touch electrode is connected to a touch driving signal sent by the touch driving chip, and the second touch electrode receives an external touch signal, generates a touch sensing signal, and sends the touch sensing signal to the touch driving chip; when self-contained scanning is carried out, the third touch electrode is electrically connected with the touch driving chip, the first touch electrode and the second touch electrode are respectively electrically disconnected with the touch driving chip, the third touch electrode is connected into a touch driving signal sent by the touch driving chip, and after an external touch signal is received, a touch sensing signal is generated and transmitted to the touch driving chip.
Optionally, the touch display panel further includes a shielding layer, the shielding layer is located on one side of the substrate, and the first touch electrode, the second touch electrode, and the third touch electrode are located on one side of the shielding layer away from the substrate.
Optionally, the touch display panel further includes a touch driving chip, when performing mutual capacitance scanning, the first touch electrode, the second touch electrode, and the shielding layer are respectively electrically connected to the touch driving chip, the third touch electrode is electrically disconnected from the touch driving chip, the first touch electrode is connected to a touch driving signal sent by the touch driving chip, the second touch electrode receives an external touch signal, generates a touch sensing signal, and transmits the touch sensing signal to the touch driving chip, and the shielding layer is connected to the touch driving signal sent by the touch driving chip; when self-contained scanning is carried out, the third touch electrode and the shielding layer are respectively electrically connected with a touch driving chip, the first touch electrode and the second touch electrode are electrically disconnected with the touch driving chip, the third touch electrode is connected into a touch driving signal sent by the touch driving chip, a touch sensing signal is generated after an external touch signal is received, the touch sensing signal is transmitted to the touch driving chip, and the shielding layer is connected into the touch driving signal sent by the touch driving chip.
Optionally, the first touch electrode includes a plurality of first sub-electrodes electrically connected in sequence and a plurality of first connection portions electrically connecting two adjacent first sub-electrodes, the plurality of first sub-electrodes, the second touch electrode, and the third touch electrode are arranged in a same layer in an insulating manner, the first connection portions and the second touch electrode are arranged in a different layer in an insulating manner, and an orthogonal projection of the first connection portion on the substrate and an orthogonal projection of the second touch electrode on the substrate have an overlapping region.
Optionally, the third touch electrode includes a plurality of second sub-electrodes electrically connected in sequence and a plurality of second connection portions electrically connecting two adjacent second sub-electrodes, the second connection portions and the first sub-electrodes are arranged in different layers in an insulating manner, and an orthogonal projection of the second connection portion on the substrate and an orthogonal projection of the first sub-electrode on the substrate have an overlapping region.
Optionally, the widths of the plurality of third touch electrodes along the extending direction thereof are gradually reduced; or the widths of the plurality of third touch electrodes along the extending direction thereof are gradually increased; or the width of a part of the third touch electrodes along the extending direction thereof is gradually reduced, the width of the other part of the third touch electrodes along the extending direction thereof is gradually increased, and the third touch electrodes with the gradually-reduced width and the third touch electrodes with the gradually-increased width are alternately arranged.
Optionally, the first touch electrode and the third touch electrode are disposed on the same layer, the second touch electrode is located between the substrate and the first touch electrode, and the second touch electrode is reused as a shielding layer of the third touch electrode.
Optionally, the touch display panel further includes a touch driving chip, and when performing mutual capacitance scanning, the first touch electrode and the second touch electrode are electrically connected to the touch driving chip, the third touch electrode is electrically disconnected from the touch driving chip, the first touch electrode is connected to a touch driving signal sent by the touch driving chip, and the second touch electrode receives an external touch signal, generates a touch sensing signal, and sends the touch sensing signal to the touch driving chip; when self-contained scanning is carried out, the second touch electrode and the third touch electrode are respectively electrically connected with the touch driving chip, the first touch electrode is electrically disconnected with the touch driving chip, the third touch electrode is used for accessing a touch driving signal sent by the touch driving chip, a touch sensing signal is generated after an external touch signal is received, the touch sensing signal is transmitted to the touch driving chip, and the second touch electrode is accessed to the touch driving signal sent by the touch driving chip.
Optionally, the first touch electrode and the third touch electrode are disposed on the same layer, and the second touch electrode is located between the substrate and the first touch electrode.
Optionally, the touch display panel further includes a touch driving chip, and when performing mutual capacitance scanning, the first touch electrode and the second touch electrode are electrically connected to the touch driving chip, the third touch electrode is electrically disconnected from the touch driving chip, the first touch electrode is connected to a touch driving signal sent by the touch driving chip, and the second touch electrode receives an external touch signal, generates a touch sensing signal, and sends the touch sensing signal to the touch driving chip; when self-contained scanning is carried out, the third touch electrode is electrically connected with the touch driving chip, the first touch electrode and the second touch electrode are respectively electrically disconnected with the touch driving chip, the third touch electrode is used for accessing a touch driving signal sent by the touch driving chip, a touch sensing signal is generated after an external touch signal is received, the touch sensing signal is transmitted to the touch driving chip, and the first touch electrode and the second touch electrode are in an idle state.
Optionally, the first touch electrode includes a plurality of first sub-electrodes electrically connected in sequence and a plurality of first connecting portions electrically connecting two adjacent first sub-electrodes, the plurality of first sub-electrodes and the second touch electrode are arranged in a same layer in an insulating manner, the third touch electrode is located between the substrate and the first touch electrode, and the third touch electrode is reused as a shielding layer of the first touch electrode and the second touch electrode.
Optionally, the touch display panel further includes a touch driving chip, and when performing mutual capacitance scanning, the first touch electrode, the second touch electrode, and the third touch electrode are respectively electrically connected to the touch driving chip, the first touch electrode is connected to a touch driving signal sent by the touch driving chip, the second touch electrode receives an external touch signal, generates a touch sensing signal, and transmits the touch sensing signal to the touch driving chip, and the third touch electrode is connected to the touch driving signal; when self-contained scanning is carried out, the first touch electrode and the second touch electrode are respectively electrically disconnected with the touch driving chip, the third touch electrode is electrically connected with the touch driving chip, the third touch electrode is used for accessing a touch driving signal sent by the touch driving chip, generating a touch sensing signal after receiving an external touch signal, and transmitting the touch sensing signal to the touch driving chip.
Optionally, the touch display panel further includes a light emitting layer, the light emitting layer is located on one side of the substrate, the first touch electrode and the second touch electrode are both located on one side of the light emitting layer away from the substrate, the light emitting layer includes a cathode layer, the cathode layer includes a plurality of cathodes arranged at intervals, and the cathodes are multiplexed to be the third touch electrode.
Optionally, the touch display panel further includes a touch driving chip, and when performing mutual capacitance scanning, the first touch electrode and the second touch electrode are electrically connected to the touch driving chip, the third touch electrode is electrically disconnected from the touch driving chip, the first touch electrode is connected to a touch driving signal sent by the touch driving chip, and the second touch electrode receives an external touch signal, generates a touch sensing signal, and sends the touch sensing signal to the touch driving chip; when self-contained scanning is carried out, the third touch electrode is electrically connected with the touch driving chip, the first touch electrode and the second touch electrode are respectively electrically disconnected with the touch driving chip, the third touch electrode is connected into a touch driving signal sent by the touch driving chip, and after an external touch signal is received, a touch sensing signal is generated and transmitted to the touch driving chip.
Based on the same inventive concept, the embodiment of the present invention further provides an electronic device, where the electronic device includes:
an apparatus main body; and
the touch display panel of the embodiment of the application is arranged on the equipment main body.
Therefore, the utility model discloses a touch-control display panel will hold the touch-control from holding with each other and integrated as an organic whole, when carrying out waterproof dustproof performance detection, can adopt from holding the touch-control electrode hold the response from holding and detect, can avoid the mistake of environment steam or dust to touch better, has better waterproof performance, in addition, can also be better avoid holding the suspension problem of touch-control electrode each other.
Drawings
To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first touch electrode, a second touch electrode and a third touch electrode according to an embodiment of the present invention;
fig. 3 is a block circuit diagram of an embodiment of the present invention;
FIG. 4 is a timing diagram of the touch display panel of FIG. 2 according to the present invention;
fig. 5 is a schematic structural diagram of a touch display panel according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of the shielding layer of the embodiment of fig. 5 according to the present invention;
FIG. 7 is a timing diagram of the touch display panel of FIG. 5 according to the present invention;
fig. 8 is a schematic structural diagram of a touch display panel according to still another embodiment of the present invention;
fig. 9 is a schematic structural diagram of the first touch electrode and the third touch electrode of the embodiment of fig. 8 according to the present invention;
fig. 10 is a schematic structural diagram of the second touch electrode according to the embodiment of the present invention in fig. 8;
FIG. 11 is a timing diagram of the touch display panel of FIG. 8 according to the present invention;
fig. 12 is a schematic structural diagram of a touch display panel according to still another embodiment of the present invention;
fig. 13 is a schematic structural diagram of the first touch electrode and the second touch electrode of fig. 12 according to the present invention;
fig. 14 is a schematic structural diagram of the third touch electrode according to the embodiment of the present invention in fig. 12;
fig. 15 is a timing diagram of the touch display panel according to the embodiment of the present invention in fig. 12;
fig. 16 is a schematic structural diagram of a cathode layer of the touch display panel of fig. 1 according to the present invention;
fig. 17 is a timing diagram of the touch display panel of fig. 16 according to the present invention;
fig. 18 is a schematic structural diagram of the electronic device of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
The touch display panel 100 is a display panel integrating a touch function and a display function. Touch screens are broadly classified into infrared type, resistive type, surface acoustic wave type, and capacitive type touch screens. The capacitive touch screen is divided into a self-capacitance type touch screen and a mutual capacitance type touch screen.
The self-capacitance touch screen is characterized in that a transverse electrode array and a longitudinal electrode array are made of transparent conductive materials (such as Indium Tin Oxide (ITO)) on the surface of glass, the transverse electrode array and the longitudinal electrode array form capacitors with the ground respectively, and when a finger touches the capacitive screen, the capacitors of the finger are superposed on the capacitors of a screen body, so that the capacitors of the screen body are increased.
The mutual capacitance touch screen is formed by two metal or metal oxide materials in parallel electrode patterns. (either a layer or a different layer). Because the two electrodes are close to each other, a capacitor is formed. When a finger touches the corresponding electrode, the capacitance between the two electrodes changes.
Referring to fig. 1 and fig. 2 again, the touch display panel 100 of the embodiment of the present invention includes: a substrate 10; the plurality of first touch electrodes 30 are arranged on one side of the substrate 10 at intervals; the plurality of second touch electrodes 50 are arranged at one side of the substrate 10 at intervals, the plurality of second touch electrodes 50 are insulated from the plurality of first touch electrodes 30, and the plurality of second touch electrodes 50 and the plurality of first touch electrodes 30 form a plurality of mutual capacitance capacitors; and a plurality of third touch electrodes 70, the plurality of third touch electrodes 70 being disposed at intervals, the third touch electrodes 70 being respectively disposed in an insulated manner from the first touch electrodes 30 and the second touch electrodes 50, the third touch electrodes 70 forming self-capacitance with the ground.
The utility model discloses a touch-control display panel 100 will hold the touch-control certainly and hold the touch-control integrated as an organic whole each other, when carrying out waterproof dustproof performance detection, can adopt the self-contained induction of holding the touch-control electrode certainly to detect, can avoid the mistake of environment steam or dust to touch better, has better waterproof performance, in addition, can also be better avoid holding the suspension problem of touch-control electrode each other.
Alternatively, the substrate 10 may be a glass substrate, a substrate in which a polyimide (P I) flexible substrate is deposited on a glass substrate, or the like.
Optionally, the first touch electrode 30 is a touch driving electrode, and the second touch electrode 50 is a touch sensing electrode; or the second touch electrode 50 is a touch driving electrode, and the first touch electrode 30 is a touch sensing electrode.
Referring to fig. 2, optionally, the first touch electrode 30 includes a plurality of first sub-electrodes 31 electrically connected in sequence and a plurality of first connection portions 33 electrically connecting two adjacent first sub-electrodes 31, the plurality of first sub-electrodes 31, the second touch electrode 50 and the third touch electrode 70 are insulated in the same layer, the first connection portions 33 and the second touch electrode 50 are insulated in different layers, and an orthogonal projection of the first connection portions 33 on the substrate 10 and an orthogonal projection of the second touch electrode 50 on the substrate 10 have an overlapping region.
Optionally, the third touch electrode 70 includes a plurality of second sub-electrodes 71 electrically connected in sequence and a plurality of second connection portions 73 electrically connecting two adjacent second sub-electrodes 71, the second connection portions 73 are arranged in a different layer from the first sub-electrodes 31 in an insulating manner, and an orthogonal projection of the second connection portion 73 on the substrate 10 and an orthogonal projection of the first sub-electrode 31 on the substrate 10 have an overlapping region.
Optionally, the widths of the plurality of third touch electrodes 70 along the extending direction thereof gradually decrease; or the widths of the plurality of third touch electrodes 70 along the extending direction thereof gradually increase; or the width of a part of the third touch electrodes 70 along the extending direction thereof gradually decreases, the width of another part of the third touch electrodes 70 along the extending direction thereof gradually increases, and the third touch electrodes 70 with gradually decreasing width and the third touch electrodes 70 with gradually increasing width are alternately arranged. Therefore, the touch point can be better positioned during self-capacitance induction.
Referring to fig. 1 again, in some embodiments, the touch display panel 100 of the embodiment of the present application further includes an encapsulation layer 90, and the encapsulation layer 90 is located on one side of the substrate 10.
In some embodiments, the first touch electrodes 30, the second touch electrodes 50, and the third touch electrodes 70 are all located on a side of the encapsulation layer 90 facing away from the substrate 10. In other embodiments, at least one of the first touch electrodes 30, the second touch electrodes 50, and the third touch electrodes 70 is located between the substrate 10 and the encapsulation layer 90.
For example: as shown in fig. 1, the first touch electrodes 30 and the second touch electrodes 50 are located on a side of the package layer 90 away from the substrate 10, and the third touch electrodes 70 are located between the substrate 10 and the package layer 90.
For another example, the first touch electrodes 30 and the third touch electrodes 70 are located on a side of the package layer 90 away from the substrate 10, and the second touch electrodes 50 are located between the substrate 10 and the package layer 90.
Referring to fig. 3, the touch display panel 100 of the embodiment of the present application further includes a touch driving chip 20. The touch driving chip 20 is configured to access a touch driving signal to the first touch electrode 30 or the second touch electrode 50, and receive a touch sensing signal returned by the second touch electrode 50 or the first touch electrode 30. The touch driving chip 20 is further configured to access a touch driving signal to the third touch electrode 70 and receive a touch sensing signal returned by the third touch electrode 70.
Alternatively, the number of the touch driving chips 20 may be 1 or 2. When the number of the touch driving chips 20 is 1, the first touch electrode 30, the second touch electrode 50, and the third touch electrode 70 are all controlled by the same touch driving chip 20. When there are 2 touch driving chips 20, the first touch electrode 30 and the second touch electrode 50 are controlled by one of the touch driving chips 20, and the third touch electrode 70 is controlled by the other touch driving chip 20.
Referring to fig. 4, during the mutual capacitance scanning, the first touch electrode 30 and the second touch electrode 50 are respectively electrically connected to the touch driving chip 20, the third touch electrode 70 is electrically disconnected from the touch driving chip 20, the first touch electrode 30 is connected to a touch driving signal sent by the touch driving chip 20, the second touch electrode 50 receives an external touch signal, generates a touch sensing signal and transmits the touch sensing signal to the touch driving chip 20, and the third touch electrode 70 is in an idle state (Dummy). When the self-contained scanning is performed, the third touch electrode 70 is electrically connected with the touch driving chip 20, the first touch electrode 30 and the second touch electrode 50 are respectively electrically disconnected from the touch driving chip 20, the third touch electrode 70 is connected to a touch driving signal sent by the touch driving chip 20, and generates a touch sensing signal after receiving an external touch signal, and transmits the touch sensing signal to the touch driving chip 20, and the first touch electrode 30 and the second touch electrode 50 are in an idle state.
Referring to fig. 5 and fig. 6, the touch display panel 100 further includes a shielding layer 40, the shielding layer 40 is located on one side of the substrate 10, the first touch electrode 30, the second touch electrode 50 and the third touch electrode 70 are all located on one side of the shielding layer 40 away from the substrate 10, and the shielding layer 40 is used for shielding interference of the display signal to the touch signal of the first touch electrode 30, the second touch electrode 50 or the third touch electrode 70. In some embodiments, the shielding layer 40 is electrically connected to the first touch electrode 30.
Referring to fig. 7, during the mutual capacitance scanning, the first touch electrode 30, the second touch electrode 50, and the shielding layer 40 are respectively electrically connected to the touch driving chip 20, the third touch electrode 70 is electrically disconnected from the touch driving chip 20, the first touch electrode 30 is connected to a touch driving signal sent by the touch driving chip 20, the second touch electrode 50 receives an external touch signal and generates a touch sensing signal, and transmits the touch sensing signal to the touch driving chip 20, the shielding layer 40 is connected to the touch driving signal sent by the touch driving chip 20, and the third touch electrode 70 is in an idle state (Dummy). When the self-contained scanning is performed, the third touch electrode 70 and the shielding layer 40 are respectively electrically connected with the touch driving chip 20, the first touch electrode 30 and the second touch electrode 50 are electrically disconnected from the touch driving chip 20, the third touch electrode 70 is connected to a touch driving signal sent by the touch driving chip 20, and generates a touch sensing signal and sends the touch sensing signal to the touch driving chip 20 after receiving an external touch signal, and the shielding layer 40 is connected to the touch driving signal sent by the touch driving chip 20.
Referring to fig. 8 to 10, in some embodiments, the first touch electrode 30 and the third touch electrode 70 are disposed on the same layer, the second touch electrode 50 is located between the substrate 10 and the first touch electrode 30, and the second touch electrode 50 is reused as the shielding layer 40 of the third touch electrode 70 to shield the display signal from interfering with the third touch electrode 70.
Referring to fig. 11, when performing mutual capacitance scanning, the first touch electrode 30 and the second touch electrode 50 are respectively electrically connected to the touch driving chip 20, the third touch electrode 70 is electrically disconnected from the touch driving chip 20, the first touch electrode 30 is connected to a touch driving signal sent by the touch driving chip 20, the second touch electrode 50 receives an external touch signal, generates a touch sensing signal, and transmits the touch sensing signal to the touch driving chip 20, and the third touch electrode 70 is in an idle state (Dummy); when the self-contained scanning is performed, the second touch electrode 50 and the third touch electrode 70 are electrically connected to the touch driving chip 20, the first touch electrode 30 is electrically disconnected from the touch driving chip 20, the third touch electrode 70 is used for accessing a touch driving signal sent by the touch driving chip 20, and after receiving an external touch signal, generating a touch sensing signal and transmitting the touch sensing signal to the touch driving chip 20, the second touch electrode 50 is accessed to the touch driving signal sent by the touch driving chip 20, and the first touch electrode 30 is in an idle state (Dummy).
In other embodiments, the first touch electrode 30 and the third touch electrode 70 are disposed on the same layer, the second touch electrode 50 is located between the substrate 10 and the first touch electrode 30, and the second touch electrode 50 is not used as the shielding layer 40. At this time, when mutual capacitance scanning is performed, the first touch electrode 30 and the second touch electrode 50 are respectively electrically connected with the touch driving chip 20, the third touch electrode 70 is electrically disconnected from the touch driving chip 20, the first touch electrode 30 is connected to a touch driving signal sent by the touch driving chip 20, the second touch electrode 50 generates a touch sensing signal after receiving an external touch signal, and transmits the touch sensing signal to the touch driving chip 20, and the third touch electrode 70 is in an idle state (Dummy); when the self-contained scanning is performed, the third touch electrode 70 is electrically connected to the touch driving chip 20, the first touch electrode 30 and the second touch electrode 50 are electrically disconnected from the touch driving chip 20, respectively, the third touch electrode 70 is used for accessing a touch driving signal sent by the touch driving chip 20, and after receiving an external touch signal, generating a touch sensing signal and transmitting the touch sensing signal to the touch driving chip 20, and the first touch electrode 30 and the second touch electrode 50 are in an idle state (Dummy).
Referring to fig. 12 to 14, the first touch electrode 30 includes a plurality of first sub-electrodes 31 and a plurality of second touch electrodes 50, the third touch electrode 70 is disposed between the substrate 10 and the first touch electrode 30, and the third touch electrode 70 is also used as a shielding layer 40 for the first touch electrode 30 and the second touch electrode 50.
Referring to fig. 15 again, when performing mutual capacitance scanning, the first touch electrode 30, the second touch electrode 50, and the third touch electrode 70 are electrically connected to the touch driving chip 20, respectively, the first touch electrode 30 accesses a touch driving signal sent by the touch driving chip 20, the second touch electrode 50 receives an external touch signal, generates a touch sensing signal, and transmits the touch sensing signal to the touch driving chip 20, and the third touch electrode 70 accesses the touch driving signal; when the self-contained scanning is performed, the first touch electrode 30 and the second touch electrode 50 are electrically disconnected from the touch driving chip 20, the third touch electrode 70 is electrically connected to the touch driving chip 20, the third touch electrode 70 is used for accessing a touch driving signal sent by the touch driving chip 20, and after receiving an external touch signal, generating a touch sensing signal and transmitting the touch sensing signal to the touch driving chip 20, and the first touch electrode 30 and the second touch electrode 50 are in an idle state (Dummy).
Referring to fig. 1 and fig. 16, the touch display panel 100 further includes a light emitting layer 60, the light emitting layer 60 is located on one side of the substrate 10, the first touch electrode 30 and the second touch electrode 50 are both located on one side of the light emitting layer 60 away from the substrate 10, the light emitting layer 60 includes a cathode layer 61, the cathode layer 61 includes a plurality of cathodes 611 arranged at intervals, and the cathodes 611 are multiplexed as the third touch electrode 70.
Referring to fig. 17, when performing mutual capacitance scanning, the first touch electrode 30 and the second touch electrode 50 are respectively electrically connected to the touch driving chip 20, the third touch electrode 70 is electrically disconnected from the touch driving chip 20, the first touch electrode 30 is connected to a touch driving signal sent by the touch driving chip 20, and the second touch electrode 50 receives an external touch signal, generates a touch sensing signal, and sends the touch sensing signal to the touch driving chip 20. When the self-contained scanning is performed, the third touch electrode 70 is electrically connected to the touch driving chip 20, the first touch electrode 30 and the second touch electrode 50 are electrically disconnected from the touch driving chip 20, respectively, the third touch electrode 70 is connected to a touch driving signal sent by the touch driving chip 20, and generates a touch sensing signal after receiving an external touch signal, and transmits the touch sensing signal to the touch driving chip 20.
Referring to fig. 18, an embodiment of the present application further provides an electronic device 200, where the electronic device 200 includes:
a device main body 210; and
in the touch display panel 100 of the embodiment of the application, the touch display panel 100 is disposed on the device body 210.
The utility model discloses an equipment main part 210 includes but not limited to including display body, computer body, TV set body, panel computer body, cell-phone body, the electronic reader body, the intelligent wrist-watch body of taking the display screen, intelligent bracelet body, the player body of taking the display screen etc. have the equipment that shows the function.
The utility model discloses an electronic equipment 200 includes but is not limited to including the equipment that has the display function such as the player of display, computer, TV set, panel computer, cell-phone, electronic reader, the intelligent wrist-watch of taking the display screen, intelligent bracelet, area display screen.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (17)
1. A touch display panel, comprising:
a substrate;
the first touch electrodes are arranged on one side of the substrate at intervals;
the second touch electrodes are arranged on one side of the substrate at intervals, the second touch electrodes and the first touch electrodes are arranged in an insulating mode, and the second touch electrodes and the first touch electrodes form a plurality of mutual capacitance capacitors; and
the plurality of third touch electrodes are arranged at intervals, the third touch electrodes are respectively insulated from the first touch electrodes and the second touch electrodes, and the third touch electrodes and the ground form a self-capacitance capacitor.
2. The touch display panel according to claim 1, further comprising an encapsulation layer, wherein the encapsulation layer is located on one side of the substrate, and the first touch electrodes, the second touch electrodes, and the third touch electrodes are located on one side of the encapsulation layer away from the substrate.
3. The touch display panel according to claim 1, further comprising a touch driving chip, wherein when performing mutual capacitance scanning, the first touch electrode and the second touch electrode are electrically connected to the touch driving chip, the third touch electrode is electrically disconnected from the touch driving chip, the first touch electrode is connected to a touch driving signal sent by the touch driving chip, and the second touch electrode receives an external touch signal, generates a touch sensing signal, and transmits the touch sensing signal to the touch driving chip; when self-contained scanning is carried out, the third touch electrode is electrically connected with the touch driving chip, the first touch electrode and the second touch electrode are respectively electrically disconnected with the touch driving chip, the third touch electrode is connected into a touch driving signal sent by the touch driving chip, and after an external touch signal is received, a touch sensing signal is generated and transmitted to the touch driving chip.
4. The touch display panel according to claim 1, further comprising a shielding layer on one side of the substrate, wherein the first touch electrode, the second touch electrode, and the third touch electrode are all located on one side of the shielding layer away from the substrate.
5. The touch display panel according to claim 4, wherein the touch display panel further includes a touch driving chip, and when performing mutual capacitance scanning, the first touch electrode, the second touch electrode, and the shielding layer are respectively electrically connected to the touch driving chip, the third touch electrode is electrically disconnected from the touch driving chip, the first touch electrode is connected to a touch driving signal sent by the touch driving chip, the second touch electrode receives an external touch signal, generates a touch sensing signal, and sends the touch sensing signal to the touch driving chip, and the shielding layer is connected to the touch driving signal sent by the touch driving chip; when self-contained scanning is carried out, the third touch electrode and the shielding layer are respectively electrically connected with a touch driving chip, the first touch electrode and the second touch electrode are electrically disconnected with the touch driving chip, the third touch electrode is connected into a touch driving signal sent by the touch driving chip, a touch sensing signal is generated after an external touch signal is received, the touch sensing signal is transmitted to the touch driving chip, and the shielding layer is connected into the touch driving signal sent by the touch driving chip.
6. The touch display panel according to claim 1, wherein the first touch electrode includes a plurality of first sub-electrodes electrically connected in sequence and a plurality of first connecting portions electrically connecting two adjacent first sub-electrodes, the plurality of first sub-electrodes, the second touch electrode and the third touch electrode are insulated on the same layer, the first connecting portions and the second touch electrode are insulated on different layers, and an orthogonal projection of the first connecting portion on the substrate and an orthogonal projection of the second touch electrode on the substrate have an overlapping area.
7. The touch display panel according to claim 6, wherein the third touch electrode comprises a plurality of second sub-electrodes electrically connected in sequence and a plurality of second connecting portions electrically connecting two adjacent second sub-electrodes, the second connecting portions are insulated from the first sub-electrodes, and an orthogonal projection of the second connecting portion on the substrate has an overlapping area with an orthogonal projection of the first sub-electrode on the substrate.
8. The touch display panel according to claim 1, wherein the widths of the third touch electrodes along the extending direction thereof are gradually reduced; or the widths of the plurality of third touch electrodes along the extending direction thereof are gradually increased; or the width of a part of the third touch electrodes along the extending direction thereof is gradually reduced, the width of the other part of the third touch electrodes along the extending direction thereof is gradually increased, and the third touch electrodes with the gradually-reduced width and the third touch electrodes with the gradually-increased width are alternately arranged.
9. The touch display panel according to claim 1, wherein the first touch electrode and the third touch electrode are disposed on the same layer, the second touch electrode is located between the substrate and the first touch electrode, and the second touch electrode is reused as a shielding layer of the third touch electrode.
10. The touch display panel according to claim 9, further comprising a touch driving chip, wherein when performing mutual capacitance scanning, the first touch electrode and the second touch electrode are electrically connected to the touch driving chip, the third touch electrode is electrically disconnected from the touch driving chip, the first touch electrode is connected to a touch driving signal sent by the touch driving chip, and the second touch electrode receives an external touch signal, generates a touch sensing signal, and sends the touch sensing signal to the touch driving chip; when self-contained scanning is carried out, the second touch electrode and the third touch electrode are respectively electrically connected with the touch driving chip, the first touch electrode is electrically disconnected with the touch driving chip, the third touch electrode is used for accessing a touch driving signal sent by the touch driving chip, a touch sensing signal is generated after an external touch signal is received, the touch sensing signal is transmitted to the touch driving chip, and the second touch electrode is accessed to the touch driving signal sent by the touch driving chip.
11. The touch display panel according to claim 1, wherein the first touch electrode and the third touch electrode are disposed on the same layer, and the second touch electrode is disposed between the substrate and the first touch electrode.
12. The touch display panel according to claim 9, further comprising a touch driving chip, wherein when performing mutual capacitance scanning, the first touch electrode and the second touch electrode are electrically connected to the touch driving chip, the third touch electrode is electrically disconnected from the touch driving chip, the first touch electrode is connected to a touch driving signal sent by the touch driving chip, and the second touch electrode receives an external touch signal, generates a touch sensing signal, and sends the touch sensing signal to the touch driving chip; when self-contained scanning is carried out, the third touch electrode is electrically connected with the touch driving chip, the first touch electrode and the second touch electrode are respectively electrically disconnected with the touch driving chip, the third touch electrode is used for accessing a touch driving signal sent by the touch driving chip, a touch sensing signal is generated after an external touch signal is received, the touch sensing signal is transmitted to the touch driving chip, and the first touch electrode and the second touch electrode are in an idle state.
13. The touch display panel according to claim 1, wherein the first touch electrode includes a plurality of first sub-electrodes electrically connected in sequence and a plurality of first connecting portions electrically connecting two adjacent first sub-electrodes, the plurality of first sub-electrodes and the second touch electrode are arranged in a same layer in an insulating manner, the third touch electrode is located between the substrate and the first touch electrode, and the third touch electrode is reused as a shielding layer of the first touch electrode and the second touch electrode.
14. The touch display panel according to claim 13, further comprising a touch driving chip, wherein when performing mutual capacitance scanning, the first touch electrode, the second touch electrode, and the third touch electrode are electrically connected to the touch driving chip, the first touch electrode is connected to a touch driving signal sent by the touch driving chip, the second touch electrode receives an external touch signal, generates a touch sensing signal, and transmits the touch sensing signal to the touch driving chip, and the third touch electrode is connected to the touch driving signal; when self-contained scanning is carried out, the first touch electrode and the second touch electrode are respectively electrically disconnected with the touch driving chip, the third touch electrode is electrically connected with the touch driving chip, the third touch electrode is used for accessing a touch driving signal sent by the touch driving chip, generating a touch sensing signal after receiving an external touch signal, and transmitting the touch sensing signal to the touch driving chip.
15. The touch display panel of claim 1, further comprising a light emitting layer on one side of the substrate, wherein the first touch electrode and the second touch electrode are both on a side of the light emitting layer facing away from the substrate, and wherein the light emitting layer comprises a cathode layer comprising a plurality of cathodes arranged at intervals, and the cathodes are multiplexed as the third touch electrode.
16. The touch display panel according to claim 15, wherein the touch display panel further comprises a touch driving chip, and when performing mutual capacitance scanning, the first touch electrode and the second touch electrode are electrically connected to the touch driving chip, the third touch electrode is electrically disconnected from the touch driving chip, the first touch electrode is connected to a touch driving signal sent by the touch driving chip, and the second touch electrode receives an external touch signal, generates a touch sensing signal, and sends the touch sensing signal to the touch driving chip; when self-contained scanning is carried out, the third touch electrode is electrically connected with the touch driving chip, the first touch electrode and the second touch electrode are respectively electrically disconnected with the touch driving chip, the third touch electrode is connected into a touch driving signal sent by the touch driving chip, and after an external touch signal is received, a touch sensing signal is generated and transmitted to the touch driving chip.
17. An electronic device, characterized in that the electronic device comprises:
an apparatus main body; and
the touch display panel of any one of claims 1-16, the touch display panel disposed on the device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022397590.XU CN213751028U (en) | 2020-10-23 | 2020-10-23 | Touch display panel and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022397590.XU CN213751028U (en) | 2020-10-23 | 2020-10-23 | Touch display panel and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN213751028U true CN213751028U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022397590.XU Active CN213751028U (en) | 2020-10-23 | 2020-10-23 | Touch display panel and electronic equipment |
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| Country | Link |
|---|---|
| CN (1) | CN213751028U (en) |
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- 2020-10-23 CN CN202022397590.XU patent/CN213751028U/en active Active
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