CN114185459B - Touch display panel and electronic device - Google Patents
Touch display panel and electronic device Download PDFInfo
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- CN114185459B CN114185459B CN202111511146.9A CN202111511146A CN114185459B CN 114185459 B CN114185459 B CN 114185459B CN 202111511146 A CN202111511146 A CN 202111511146A CN 114185459 B CN114185459 B CN 114185459B
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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
- G06F3/044—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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Abstract
The application provides a touch display panel and electronic device, this electronic device includes touch display panel, touch display panel includes a plurality of touch drive electrodes, a plurality of touch sensing electrode and a plurality of touch cushion, through with being located two at least touch drive electrodes or touch sensing electrode electric connection to same touch cushion of same line, with this quantity that reduces touch cushion to increase touch display panel's design space, thereby can reduce touch display panel's design degree of difficulty, and promote touch display panel's manufacturing process's yield.
Description
Technical Field
The application relates to the technical field of display, in particular to a touch display panel and an electronic device.
Background
The display panel of the electronic device mainly includes several types such as a Liquid Crystal Display (LCD), a Plasma Display Panel (PDP), an Organic Light Emitting Diode (OLED) display panel, and an active-matrix organic light emitting diode (AMOLED) display panel, and has a wide application range in products such as vehicles, mobile phones, tablets, computers, and televisions.
At present, touch control functions have become the standard of most electronic devices, wherein capacitive touch control display panels are widely applied, and the basic principle is that a tool such as a finger or a touch pen is used to generate capacitance with the touch control display panel, and an electric signal formed by capacitance change before and after touch control is used to confirm whether the panel is touched and confirm coordinates of a touch point.
An important touch technology of a capacitive touch display panel is mutual capacitance type, a touch function can be realized through a single-layer or double-layer metal electrode, and the single-layer mutual capacitance type touch technology is realized through preparing a touch sensing electrode, a touch driving electrode and a touch signal wire through the same layer of metal. However, the touch sensing electrode, the touch driving electrode and the touch signal line are arranged on the same film layer, so that the planar design space of the touch display panel can be compressed, the number of touch pads for binding and connecting the touch signal line and the touch driving integrated circuit is increased, the design difficulty of the touch display panel is increased, and the yield of the binding process is reduced.
In summary, the conventional touch display panel adopting the single-layer type mutual-capacitance touch technology has the problem that the yield of the binding process is reduced due to more touch pads. Therefore, it is necessary to provide a touch display panel and an electronic device to improve the defect.
Disclosure of Invention
The embodiment of the application provides a touch display panel and an electronic device, which are used for solving the problem that the yield of a binding process is reduced due to more touch pads in the traditional touch display panel adopting a single-layer mutual-capacitance touch technology.
The embodiment of the application provides a touch display panel, which comprises:
the touch control driving electrodes are arranged in rows at intervals along a first direction and arranged in columns at intervals along a second direction, and the first direction is different from the second direction;
the touch sensing electrodes are arranged in rows at intervals along the first direction and arranged in columns at intervals along the second direction; and
a plurality of touch pads;
at least two touch driving electrodes or touch sensing electrodes positioned in the same row are electrically connected to the same touch pad.
According to an embodiment of the present application, the touch display panel further includes a plurality of touch driving signal lines;
the first ends of the touch driving signal lines are electrically connected to the touch driving electrodes, and the second ends of at least two touch driving signal lines electrically connected to the same row of touch electrodes are electrically connected to the same touch pad.
According to an embodiment of the present application, the touch driving signal lines electrically connected to the same touch pad are electrically connected through a switching line, and the switching line and the touch driving signal line are disposed on different film layers.
According to an embodiment of the present application, the touch display panel further includes a plurality of touch sensing signal lines;
the first ends of the touch sensing signal wires are electrically connected to the touch sensing electrodes, and the second ends of at least two touch sensing signal wires electrically connected to the same row of touch sensing electrodes are electrically connected to the same touch pad.
According to an embodiment of the present application, the touch sensing signal lines electrically connected to the same touch pad are electrically connected through a switching line, and the switching line and the touch sensing signal line are disposed on different film layers.
According to an embodiment of the present application, the touch display panel further includes a pixel driving circuit, the pixel driving circuit includes a plurality of thin film transistors, and the thin film transistors include a source electrode and a gate electrode;
the conversion line and the source electrode or the grid electrode are arranged on the same film layer.
According to an embodiment of the present application, the touch sensing electrode includes a first touch sensing electrode and a second touch sensing electrode;
the first touch sensing electrodes and the second touch sensing electrodes are alternately arranged in the same column, the plurality of first touch sensing electrodes are distributed and arranged in rows along the first direction, and the plurality of second touch sensing electrodes are extended and arranged in rows along the first direction;
at least two first touch sensing electrodes positioned in the same row are electrically connected to the same touch pad block; and/or at least two second touch sensing electrodes positioned in the same row are electrically connected to the same touch pad.
According to an embodiment of the application, the touch driving electrode and the touch sensing electrode are disposed on the same film layer.
According to an embodiment of the present application, the touch pad includes:
the touch driving cushion blocks are electrically connected with the touch driving electrodes; and
the touch sensing cushion blocks are electrically connected to the touch sensing electrodes;
the touch control driving cushion blocks are arranged on the opposite sides or any side of the touch control driving cushion blocks.
The embodiment of the application also provides an electronic device, which comprises the touch display panel.
The beneficial effects of the embodiment of the application are that: the embodiment of the application provides a touch display panel and an electronic device, the electronic device includes the touch display panel, the touch display panel includes a plurality of touch drive electrodes, a plurality of touch sensing electrodes and a plurality of touch pads, a plurality of touch drive electrodes are arranged in rows along first direction interval distribution to set into columns along second direction interval distribution, first direction is different from the second direction, a plurality of touch sensing electrodes are arranged in rows along first direction interval distribution to set into columns along second direction interval distribution, through with at least two touch drive electrodes or touch sensing electrodes electric connection who is located same row to same touch pad to this reduces the quantity of touch pads, and improves the design space of touch display panel, thereby can reduce the design degree of difficulty of touch display panel, and promote the yield of touch display panel process.
Drawings
In order to more clearly illustrate the embodiments or the technical solutions in the prior art, the following description will briefly introduce the drawings that are required to be used in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a touch display panel in the prior art;
fig. 2 is a schematic structural diagram of a first touch display panel according to an embodiment of the present disclosure;
fig. 3 is a schematic partial enlarged view of a signal conversion area of a first touch display panel according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a second touch display panel according to an embodiment of the present disclosure;
fig. 5 is a schematic partial enlarged view of a signal conversion area of a second touch display panel according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a third touch display panel according to an embodiment of the present disclosure;
fig. 7 is a schematic partial enlarged view of a signal conversion area of a third touch display panel according to an embodiment of the present application.
Detailed Description
The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments that can be used to practice the present application. The directional terms mentioned in this application, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., are only referring to the directions of the attached drawings. Accordingly, directional terminology is used to describe and understand the application and is not intended to be limiting of the application. In the drawings, like elements are designated by like reference numerals.
The present application is further described below with reference to the drawings and specific examples.
Along with development of display technology, touch control functions have become standard of most electronic devices, but in the existing touch control display panel adopting the single-layer mutual capacitance type touch control technology, the thickness of a touch control layer is reduced by arranging a touch control sensing electrode, a touch control driving electrode and a touch control signal wire on the same film layer, but not only the design space of the touch control display panel can be compressed, but also the number of touch control cushion blocks for binding and connecting the touch control signal wire and a touch control driving integrated circuit is increased, so that the design difficulty of the touch control display panel is increased and the yield of a binding technology is reduced. The embodiment of the application provides a touch display panel and an electronic device, which can reduce the number of touch pads in the touch display panel, improve the design space of the touch display panel, reduce the design difficulty of the touch display panel and improve the yield of the manufacturing process of the touch display panel.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a touch display panel in the prior art, the touch display panel includes a plurality of touch driving electrodes 11, a plurality of touch sensing electrodes 12, a plurality of touch driving signal lines 13, a plurality of touch sensing signal lines 14, a plurality of touch pads 15, a touch integrated circuit 16 and a display integrated circuit 17, one end of the touch driving signal line 13 is electrically connected to the touch driving electrodes 11, the other end of the touch driving signal line is electrically connected to a corresponding one of the touch pads 15, one end of the touch sensing signal line 14 is electrically connected to the touch sensing electrodes 12, the other end of the touch sensing signal line 14 is electrically connected to a corresponding one of the touch pads 15, and the touch integrated circuit 16 can be bound with the touch pads 15 through a flexible printed circuit board so as to provide or receive corresponding touch driving signals or touch sensing signals to the touch driving electrodes 11 and the touch sensing electrodes 12.
Setting the touch driving electrode 11, the touch sensing electrode 12 and the touch signal line 13 on the same film layer can make the number of the touch signal lines 13 and the touch pads 15 in the same film layer be too large, compress the design space of the touch display panel, and result in an increase in the design difficulty of the touch display panel and a decrease in the yield of the binding order Cheng Gongyi.
The embodiment of the application provides a touch display panel and an electronic device, wherein the electronic device comprises the touch display panel, a shell for bearing the touch display panel, a processor, a power supply and other components, wherein the processor is arranged in the shell and is used for driving the touch display panel to realize a picture display function. The electronic device may be a mobile terminal, such as a smart phone, a tablet computer, a notebook computer, etc., or a wearable terminal, such as a smart watch, a smart bracelet, a smart glasses, an augmented reality device, etc., or a fixed terminal, such as a desktop computer, a television, etc.
As shown in fig. 2, fig. 2 is a schematic structural diagram of a first touch display panel provided in this embodiment of the present application, where the touch display panel includes a display area AA and a non-display area NA surrounding the display area, the touch display panel further includes a plurality of touch driving electrodes 20 and a plurality of touch sensing electrodes 30 disposed in the display area AA, the plurality of touch driving electrodes 20 are arranged in rows along a first direction x at intervals, the plurality of touch driving electrodes 20 are arranged in columns along a second direction y at intervals, and the first direction x is different from the second direction y.
In this embodiment of the present application, the first direction x is a horizontal direction, the second direction y is a vertical direction, and the first direction x is perpendicular to the second direction y.
The touch sensing electrodes 30 are arranged in rows at intervals along the first direction x, the touch sensing electrodes 30 are arranged in columns at intervals along the second direction y, and one side of each column of touch driving electrodes 20 is provided with an adjacent column of touch sensing electrodes 30. Each of the touch driving electrodes 20 is disposed opposite to at least one of the touch sensing electrodes 30 to couple to form a plurality of mutual capacitance sensing nodes, and the position information of the touch of the user is determined by sensing the charge change of the mutual capacitance sensing nodes.
In this embodiment, the touch driving electrode 20 and the touch sensing electrode 30 are disposed on the same film layer, and may be formed by the same metal film forming process, so that the thickness of the film layer of the touch display panel may be reduced, and the manufacturing process of the touch display panel may be simplified, thereby reducing the production cost.
It should be noted that, in fig. 2, only 4 rows and 7 columns of touch driving electrodes 20 and 4 columns and 6 columns of touch sensing electrodes 30 are illustrated, and the number of the touch driving electrodes 20 and the number of the touch sensing electrodes 30 illustrated in fig. 2 do not represent the number of the touch driving electrodes 20 and the number of the touch sensing electrodes 30 in practical applications.
The touch display panel further comprises a binding area BA, wherein the binding area BA is positioned in the non-display area NA and is arranged on the lower side of the display area AA. The touch display panel further comprises a plurality of touch pads 40, and the touch pads 40 are arranged in the binding area BA.
The touch display panel further includes a touch integrated circuit TIC, which is connected to the touch pad 40 in a binding manner, so as to output a touch driving signal to the touch driving electrode 20 and receive a touch sensing signal detected by the touch sensing electrode 30.
Further, at least two touch driving electrodes 20 or touch sensing electrodes 30 located in the same row are electrically connected to the same touch pad 40.
As shown in fig. 1, the touch display panel further includes a plurality of touch driving signal lines 50, and the plurality of touch driving signal lines 50 extend along the second direction y. The first end of each touch driving signal line 50 is electrically connected to a corresponding one of the touch driving electrodes 20, and the second end of each touch driving signal line 50 is electrically connected to a corresponding one of the touch pads 40, so as to transmit the touch driving signal output by the touch integrated circuit to the touch driving electrode 20.
Specifically, the touch pad 40 includes a plurality of touch driving pads 41, and the second end of each touch driving signal line 50 is electrically connected to a corresponding one of the touch driving pads 41, so as to transmit a touch driving signal output by the touch integrated circuit TIC to the touch driving electrode 20.
Further, the touch sensing electrodes 30 include first touch sensing electrodes 31 and second touch sensing electrodes 32, the first touch sensing electrodes 31 are arranged in rows along the first direction x at intervals, the second touch sensing electrodes 32 are arranged in rows along the first direction x at intervals, the first touch sensing electrodes 31 are arranged in odd rows, and the second touch sensing electrodes 32 are arranged in even rows. The first touch sensing electrodes 31 and the second touch sensing electrodes 32 are alternately arranged in the same row along the second direction.
The touch display panel further includes a plurality of touch sensing signal lines 60, and the plurality of touch sensing signal lines 60 extend along the second direction y. The first end of each touch sensing signal line 60 is electrically connected to a corresponding one of the touch sensing electrodes 30, and the second end of each touch sensing signal line 60 is electrically connected to a corresponding one of the touch pads 40, so as to transmit the touch sensing signal detected by the touch sensing electrode 30 to the touch integrated circuit. The first touch sensing electrodes 31 located in the same row are connected to the same touch sensing signal line 60, and the second touch sensing electrodes 32 located in the same row are connected to the same touch sensing signal line 60.
Specifically, the touch pad 40 includes a plurality of touch sensing pads 42, and the second end of each touch sensing signal line 60 is electrically connected to a corresponding one of the touch sensing pads 42, so as to transmit the touch sensing signal detected by the touch sensing electrode 30 to the touch integrated circuit TIC.
Further, at least two touch driving electrodes 20 located in the same row are connected to the same touch driving pad 41.
In this embodiment, as shown in fig. 2, the touch driving electrode 20 includes the TX1_1, the TX1_2, the TX1_3 … … TX4_5, the TX4_6 and the TX4_7 distributed in 7 rows and 4 columns, the first touch sensing electrode 31 includes the RX1_1, the RX1_3, the RX1_5 … … RX4_1, the RX4_3 and the RX4_5, the second touch sensing electrode 32 includes the RX1_2, the RX1_4, the RX1_6 … … RX4_2, the RX4_4 and the RX4_6, wherein the upper portion of the RX1_1 in the first touch sensing electrode 31 is opposite to the TX1_1 in the touch driving electrode 20, the lower portion of the RX1_1 and the upper portion of the RX1_2 are opposite to the TX1_2, and the lower portion of the RX1_2 and the upper portion of the RX1_3 are opposite to the TX1_3, and so on, and other touch sensing electrodes may not be arranged in the above-mentioned manner.
As shown in fig. 2, taking the first row of the touch driving electrodes 20 as an example, the TX1_1 located in the first row and the first column and the TX2_1 located in the first row and the second column are connected to the same touch sensing pad 42 through different touch driving signal lines 50, and the TX1_3 located in the first row and the third column and the TX1_4 located in the first row and the fourth column are connected to the same touch sensing pad 42 through different touch driving signal lines 50.
Further, the touch display panel further includes a switching line 70 electrically connected to the different touch driving signal lines 50 of the same touch pad 40 through the switching line 70.
As shown in fig. 3, fig. 3 is a schematic partial enlarged view of a signal conversion area of a first touch display panel provided in this embodiment of the present application, where the touch display panel further includes a signal conversion area TA, the signal conversion area TA is disposed between the display area AA and the binding area BA, the touch display panel further includes a conversion line 70, and the conversion line 70 is disposed in the conversion area TA.
In the following, taking TX1_1 and TX2_1 in the first touch driving electrode 20 as an example, the TX1_1 and the TX2_1 are connected to the same touch driving pad 41 through two touch driving signal lines 50, the two touch driving signal lines 50 are electrically connected in the switching area TA through the switching line 70, and then are electrically connected to a corresponding one of the touch driving pads 41 through any one of the two touch driving signal lines 50. Compared with the prior art, two touch driving cushion blocks 41 need to be electrically connected to the Tx1_1 and the Tx2_1 respectively through different touch driving signal lines, and in the embodiment of the application, one touch driving cushion block 41 can be utilized to transmit touch driving signals to the Tx1_1 and the Tx2_1 respectively, so that the number of the touch driving cushion blocks 41 in the binding area BA can be effectively reduced, and the design space of the touch display panel is allowed, so that the design difficulty of the touch display panel can be reduced, and the yield of the binding process of the touch display panel is improved.
It should be noted that, in the above embodiment, only TX1_1 and TX2_1 in the touch driving electrode 20 are taken as examples for illustration, and the manner in which other touch driving electrodes are electrically connected to the touch driving pad 41 can refer to the above embodiment, and the details are not repeated here.
In practical application, 3, 4 or more than 4 adjacent touch driving electrodes 20 in the same row may be connected to the same touch driving pad 41, so that the number of touch driving pads 41 in the binding area BA may be further reduced, and the number of touch driving electrodes 20 connected to the same touch driving pad 41 is not limited.
Further, the switching line 70 and the touch driving signal line 50 are disposed on different layers.
In this embodiment, the touch driving signal line 50, the touch sensing signal line 60, the touch driving electrode 20 and the touch sensing electrode 30 are disposed on the same film layer, and the switching line 70 and the touch driving signal line 50 are disposed on different film layers, so that other touch driving signal lines 50 or touch sensing signal lines 60 between the two touch driving signal lines 50 can be avoided.
The touch display panel includes a pixel driving circuit, the pixel driving circuit includes a plurality of thin film transistors, the thin film transistors include a source electrode, a drain electrode and a gate electrode, the switching line may be disposed on the same film layer with the source electrode and the drain electrode, and may be formed by the same metal film forming process with the source electrode and the drain electrode, the touch driving signal line 50 may be connected with the switching line 70 located on different film layers through a via hole VH, and a black dot in fig. 3 is the via hole VH.
In practical applications, the switching line 70 may be disposed on the same film layer as the gate electrode, and may be formed by the same metal film forming process as the gate electrode.
Further, the plurality of touch sensing pads 42 are disposed on opposite sides or any side of the plurality of touch driving pads 41.
As shown in fig. 2 and 3, in the first touch display panel shown in fig. 2 and 3, the touch sensing pads 42 may be disposed on opposite sides of the plurality of touch driving pads 41, that is, the touch sensing pads 42 are disposed on both left and right sides of the plurality of touch driving pads 41.
As shown in fig. 4 and fig. 5, fig. 4 is a schematic structural diagram of a second touch display panel provided in the embodiment of the present application, and fig. 5 is a partially enlarged schematic structural diagram of a signal conversion area of the second touch display panel provided in the embodiment of the present application, where the structure of the second touch display panel shown in fig. 4 is substantially the same as that of the first touch display panel shown in fig. 2, and the difference is that a plurality of touch sensing pads 42 in the second touch display panel shown in fig. 4 may be disposed on one side of a plurality of touch driving pads 41. By arranging the touch driving pad 41 and the touch sensing pad 42 separately, signal interference between the touch driving pad 41 and the touch sensing pad 42 can be reduced.
Referring to fig. 6 and fig. 7, fig. 6 is a schematic structural diagram of a third touch display panel provided in the embodiment of the present application, and fig. 7 is a schematic partial enlarged view of a signal conversion area of the third touch display panel provided in the embodiment of the present application, it should be noted that a structure of the third touch display panel shown in fig. 6 is substantially the same as a structure of the first touch display panel shown in fig. 2, and the difference is that: as shown in fig. 6, each touch driving pad 41 is electrically connected to a corresponding one of the touch driving electrodes 20 through only one touch driving signal line 50, and at least two touch sensing electrodes 30 located in the same row are electrically connected to the same touch pad 40.
As shown in fig. 6, the RX1_1 and the RX2_1 in the same row of the first touch sensing electrode 31 are connected to the same touch sensing pad 42, the RX3_1 and the RX4_1 are connected to the same touch sensing pad 42, the RX1_2 and the RX2_2 in the same row of the second touch sensing electrode 32 are connected to the same touch sensing pad 42, the RX3_2 and the RX4_2 are connected to the same touch sensing pad 42, and so on, the connection manner between the other touch sensing electrodes in the first touch sensing electrode 31 and the second touch sensing electrode 32 and the touch sensing pad can be referred to in the above manner, and the description is omitted herein.
Further, the first ends of the touch sensing signal lines 60 are electrically connected to the touch sensing electrodes 30, and the second ends of at least two of the touch sensing signal lines 60 electrically connected to the same row of the touch sensing electrodes 30 are electrically connected to the same touch sensing pad 42.
In the following description, the RX1_1 and RX1_3 of the first touch sensing electrode 31 are taken as an example, and the RX1_1 and RX1_3 are connected to the same touch sensing pad 42 through two touch sensing signal lines 60, wherein the two touch sensing signal lines 60 are electrically connected in the switching area TA through the switching line 70, and then electrically connected to a corresponding one of the touch sensing pads 42 through any one of the two touch sensing signal lines 60. Compared with the prior art, two touch sensing pads 42 need to be electrically connected to the Rx1_1 and Rx1_3 through different touch sensing signal lines, the embodiment of the invention can use one touch sensing pad 42 to be electrically connected to two first touch sensing electrodes 31 at the same time, so that the number of the touch sensing pads 42 in the binding area BA can be effectively reduced, the design space of the touch display panel is saved, the design difficulty of the touch display panel can be reduced, and the yield of the binding process of the touch display panel is improved.
In other embodiments, at least two first touch sensing electrodes 31 located in the same row may be only connected to the same touch sensing pad 42, and a plurality of second touch sensing electrodes 32 located in the same row are respectively connected to different touch sensing pads 42; alternatively, only the at least two second touch sensing electrodes 32 located in the same row may be connected to the same touch sensing pad 42, and the plurality of first touch sensing electrodes 31 located in the same row may be connected to different touch sensing pads 42.
In practical applications, 3, 4 or more than 4 adjacent first touch sensing electrodes 31 or second touch sensing electrodes 32 in the same row may be connected to the same touch sensing pad 42, so that the number of touch sensing pads 42 in the binding area BA may be further reduced, and the number of first touch sensing electrodes 31 or second touch sensing electrodes 32 connected to the same touch sensing pad 42 is not limited.
Further, as shown in fig. 2, the binding area BA1 further includes a first binding area BA1 and a second binding area BA2, the touch integrated circuit TIC includes a first touch integrated circuit TIC1 and a second touch integrated circuit TIC2, the first touch integrated circuit TIC1 is bound and connected with the touch pad 40 located in the first binding area BA1, and the second touch integrated circuit TIC2 is bound and connected with the touch pad 40 located in the second binding area BA 2.
The touch driving electrode 20 and the touch sensing electrode 30 positioned at the left half part of the display area AA are electrically connected to the touch pad 40 in the first binding area BA1, and the touch driving electrode 20 and the touch sensing electrode 30 positioned at the right half part of the display area AA are electrically connected to the touch pad 40 in the second binding area BA2, and the touch display panel further comprises a display integrated circuit DIC, wherein the display integrated circuit DIC is bound and connected between the first binding area BA1 and the second binding area BA2, and the first binding area BA1 and the second binding area BA2 are symmetrically arranged with respect to the display integrated circuit DIC, so that the touch signal delay of the left half part and the right half part of the display area AA of the touch display panel can be reduced, and the touch performance of the touch display panel is ensured.
The embodiment of the application provides a touch display panel and an electronic device, the electronic device includes the touch display panel, the touch display panel includes a plurality of touch drive electrodes, a plurality of touch sensing electrodes and a plurality of touch pads, a plurality of touch drive electrodes are arranged in rows along first direction interval distribution to set into columns along second direction interval distribution, first direction is different from the second direction, a plurality of touch sensing electrodes are arranged in rows along first direction interval distribution to set into columns along second direction interval distribution, through with at least two that are located same row touch drive electrodes or touch sensing electrodes electric connection to same touch pad to this reduces the quantity of touch pads, and increases the design space of touch display panel, thereby can reduce the design degree of difficulty of touch display panel, and promote the yield of touch display panel process.
In summary, although the present application discloses the preferred embodiments, the preferred embodiments are not intended to limit the application, and those skilled in the art can make various modifications and alterations without departing from the spirit and scope of the application, so the scope of the application is defined by the claims.
Claims (10)
1. The utility model provides a touch-control display panel, its characterized in that includes the display area and set up in first binding area and the second binding area of display area downside, touch-control display panel still includes:
the touch control driving electrodes are arranged in rows at intervals along a first direction and arranged in columns at intervals along a second direction, and the first direction is different from the second direction;
the touch sensing electrodes are arranged in rows at intervals along the first direction and arranged in columns at intervals along the second direction;
the touch pad blocks are respectively arranged in the first binding area and the second binding area; and
a display integrated circuit;
the touch control driving electrodes or the touch control sensing electrodes positioned in the same row are electrically connected to the same touch control cushion block, the touch control driving electrodes and the touch control sensing electrodes positioned in the left half part of the display area are electrically connected to the touch control cushion blocks in the first binding area, the touch control driving electrodes and the touch control sensing electrodes positioned in the right half part of the display area are electrically connected to the touch control cushion blocks in the second binding area, and the display integrated circuit is bound and connected between the first binding area and the second binding area, and the first binding area and the second binding area are symmetrically arranged relative to the display integrated circuit.
2. The touch display panel of claim 1, further comprising a plurality of touch drive signal lines;
the first ends of the touch driving signal lines are electrically connected to the touch driving electrodes, and the second ends of at least two touch driving signal lines electrically connected to the same row of touch driving electrodes are electrically connected to the same touch pad.
3. The touch display panel of claim 2, further comprising a switching line electrically connected between different touch driving signal lines of the same touch pad, wherein the switching line and the touch driving signal line are disposed on different film layers.
4. The touch display panel of claim 1, further comprising a plurality of touch sensing signal lines;
the first ends of the touch sensing signal wires are electrically connected to the touch sensing electrodes, and the second ends of at least two touch sensing signal wires electrically connected to the same row of touch sensing electrodes are electrically connected to the same touch pad.
5. The touch display panel of claim 4, further comprising a switching line electrically connected between different touch sensing signal lines of the same touch pad, wherein the switching line and the touch sensing signal line are disposed on different layers.
6. The touch display panel according to claim 3 or 5, further comprising a pixel driving circuit comprising a plurality of thin film transistors including a source and a gate;
the conversion line and the source electrode or the grid electrode are arranged on the same film layer.
7. The touch display panel of claim 1, wherein the touch sensing electrode comprises a first touch sensing electrode and a second touch sensing electrode;
the plurality of first touch sensing electrodes are distributed and arranged in rows along the first direction, the plurality of second touch sensing electrodes are extended and arranged in rows along the first direction, and the first touch sensing electrodes and the second touch sensing electrodes are alternately arranged in the same column along the second direction;
at least two first touch sensing electrodes positioned in the same row are electrically connected to the same touch pad block; and/or at least two second touch sensing electrodes positioned in the same row are electrically connected to the same touch pad.
8. The touch display panel of claim 1, wherein the touch driving electrode and the touch sensing electrode are disposed on the same film layer.
9. The touch display panel of claim 1, wherein the touch pad comprises:
the touch driving cushion blocks are electrically connected with the touch driving electrodes; and
the touch sensing cushion blocks are electrically connected to the touch sensing electrodes;
the touch control driving cushion blocks are arranged on the opposite sides or any side of the touch control driving cushion blocks.
10. An electronic device comprising a touch display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111511146.9A CN114185459B (en) | 2021-12-11 | 2021-12-11 | Touch display panel and electronic device |
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| CN202111511146.9A CN114185459B (en) | 2021-12-11 | 2021-12-11 | Touch display panel and electronic device |
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| CN114185459A CN114185459A (en) | 2022-03-15 |
| CN114185459B true CN114185459B (en) | 2023-06-27 |
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Citations (10)
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