CN113176835A - Touch display panel and display device - Google Patents
Touch display panel and display device Download PDFInfo
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- CN113176835A CN113176835A CN202110463699.5A CN202110463699A CN113176835A CN 113176835 A CN113176835 A CN 113176835A CN 202110463699 A CN202110463699 A CN 202110463699A CN 113176835 A CN113176835 A CN 113176835A
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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
- G06F3/0412—Digitisers structurally integrated in a display
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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
- G06F3/0416—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
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
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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
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- Computer Networks & Wireless Communication (AREA)
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Position Input By Displaying (AREA)
Abstract
The application provides a touch display panel and a display device, the touch display panel comprises a substrate and a plurality of data lines. The plurality of data lines are arranged on the substrate and arranged along a first direction, and a first end of each data line is connected with the first connecting line through a first switch element. When the touch display panel is in a vertical blanking period, the first switch element is turned on, the data line is in short circuit with the first connecting line through the switch element, and at least part of the data line is multiplexed as a first touch electrode. The touch display panel can be light and thin, and meanwhile production cost is reduced.
Description
Technical Field
The application relates to the technical field of display, in particular to a touch display panel and a display device.
Background
With the development of touch technology, electronic devices with touch function are widely used in life and work of people, and display panels with touch function become a research hotspot in the display field. Touch display panels can be classified into capacitive type, electromagnetic type, resistive type, optical type, and the like.
The electromagnetic touch display panel in the prior art generally adopts an externally-hung electromagnetic touch panel, the externally-hung electromagnetic touch panel and the display panel are combined to form the electromagnetic touch display panel, and the electromagnetic touch display panel has a large overall thickness and a high production cost.
Disclosure of Invention
The application provides a touch display panel and a display device, which are used for solving the technical problems of large thickness and high cost of the touch display panel in the prior art.
The application provides a touch display panel, it includes:
a substrate; and
the data lines are arranged on the substrate and arranged along a first direction, and a first end of each data line is connected with the first connecting line through a corresponding first switch element;
when the touch display panel is in a vertical blanking period, the first switch element is turned on, the first ends of part of the data lines are all in short circuit with the first connecting lines through the first switch element, and at least part of the data lines are multiplexed as first touch electrodes.
Optionally, in the touch display panel provided by the present application, the touch display panel further includes a plurality of common electrode lines arranged along a second direction, where the second direction is perpendicular to the first direction, at least a part of the common electrode lines are reused as second touch electrodes, and first ends of the common electrode lines reused as the second touch electrodes are all connected to a second connection line;
when the touch display panel displays a picture, the second connecting line is connected with a common voltage.
Optionally, in the touch display panel provided by the present application, the first switch element is a transistor, a gate of each transistor is connected to a first control line, the first control line is connected to a control signal, a source of each transistor is connected to the corresponding data line, and a drain of each transistor is connected to the first connection line.
Optionally, in the touch display panel provided by the present application, when the touch display panel is in a vertical blanking period, a second end of at least one of the first touch electrodes is connected to a first driving signal, and a second end of at least another one of the first touch electrodes outputs a first detection signal;
the second end of at least one second touch electrode is connected to a second driving signal, and the second end of at least one other second touch electrode outputs a second detection signal.
Optionally, in the touch display panel provided in the present application, each of the first touch electrodes includes a plurality of data lines connected in parallel;
second ends of the plurality of parallel data lines are connected to each other through corresponding second switching elements.
Optionally, in the touch display panel provided by the application, at least one data line is included between two adjacent first touch electrodes, a first end of the data line between two adjacent first touch electrodes is connected to the first connection line through the corresponding first switch element, and a second end of the data line between two adjacent first touch electrodes is suspended.
Optionally, in the touch display panel provided by the present application, each of the second touch electrodes includes a plurality of parallel common electrode lines.
Optionally, in the touch display panel provided by the application, two adjacent second touch electrodes include at least one common electrode line therebetween, two adjacent second touch electrodes include the first end of the common electrode line therebetween and the second connection line therebetween, and two adjacent second touch electrodes include the second end of the common electrode line therebetween and are suspended.
Correspondingly, the application also provides a display device which comprises the touch display panel.
Optionally, in the display device provided in the present application, the display device further includes a driving chip and a circuit board, the driving chip is disposed on a chip on film, and the circuit board is connected to the touch display panel through the chip on film;
the second end of the first touch electrode is connected with the driving chip through a first wire.
The application provides a touch display panel and a display device, the touch display panel comprises a substrate and a plurality of data lines. The plurality of data lines are arranged on the substrate and arranged along a first direction, and a first end of each data line is connected with the first connecting line through a first switch element. When the touch display panel is in a vertical blanking period, the first switch element is turned on, the data line is in short circuit with the first connecting line through the switch element, and part of the data line is multiplexed as a first touch electrode. According to the touch display panel, the data lines are multiplexed into the first touch electrodes in the vertical blanking period, so that the touch display integration of the touch display panel is realized, the touch display panel is light and thin, and the production cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a first structure of a touch display panel provided in the present application;
fig. 2 is a schematic view of a second structure of the touch display panel provided in the present application;
fig. 3 is a schematic diagram of a third structure of a touch display panel provided in the present application;
fig. 4 is a schematic diagram of a fourth structure of the touch display panel provided in the present application;
fig. 5 is a schematic diagram of a fifth structure of the touch display panel provided in the present application;
fig. 6 is a schematic diagram of a sixth structure of a touch display panel provided in the present application;
fig. 7 is a schematic structural diagram of a display device provided in the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
Referring to fig. 1, fig. 1 is a schematic view of a first structure of a touch display panel 100 provided in the present application. The touch display panel 100 includes a substrate 10 and a plurality of data lines 20. A plurality of data lines 20 are disposed on the substrate 10. The plurality of data lines 20 are arranged in the first direction X. The first end a of each data line 20 is connected to the first connection line 22 through the corresponding first switching element 21. When the touch display panel 100 is in the vertical blanking period, the first switch element 21 is turned on, the first end a of the data line 20 is shorted with the first connection line 22 through the first switch element 21, and at least a portion of the data line 20 is reused as the first touch electrode 30.
It can be understood that during the display process of the touch display panel 100, the scanning always starts from the upper left corner of the display area AA, and advances horizontally forward, while the scanning point also moves downward at a slower rate. When the scanning point reaches the right edge of the display area AA, the scanning point quickly returns to the left, and the 2 nd line scanning is resumed below the start of the 1 st line, and the line-to-line return process is called horizontal blanking (HBlank). A complete image scanning signal is formed by a sequence of line signals separated by horizontal blanking intervals, called a frame. After scanning one frame, the scanning point returns from the lower right corner to the upper left corner of the display area AA, and starts scanning a new frame, and this time interval is called vertical blanking, also called vertical blanking (VBlank).
Each frame of the touch display panel 100 is divided into a display mode and a touch mode by using a vertical blanking period between adjacent frames. In the display mode, the first switching element 21 is turned off, and each data line 20 exists independently. At this time, the data line 20 provides the touch display panel 100 with a data signal, and the touch display panel 100 performs a screen display. In the touch mode, i.e. in the vertical blanking period, the first switch element 21 is turned on, and each data line 20 is shorted to the first connection line 22 through the corresponding first switch element 21. At this time, the data line 20 is reused as the first touch electrode 30, and the touch display panel 100 performs electromagnetic touch detection. In the present application, the data line 20 is multiplexed into the first touch electrode 30 in the vertical blanking period, so that the touch display integration of the touch display panel 100 can be realized, the light and thin touch display panel 100 is facilitated, and the production cost is reduced.
Referring to fig. 1, in the touch display panel 100 provided by the present application, the first switch elements 21 are transistors, and a gate of each transistor is connected to the first control line 23. The first control line 23 receives a control signal SW. The source of each transistor is connected to a respective data line 20. The drain of each transistor is connected to the first connection line 22. The gate of each transistor is connected to the first control line 23 to receive the control signal SW. According to the arrangement of the application, on one hand, the switches of the transistors can be uniformly controlled, and signal routing in the touch display panel 100 is reduced; on the other hand, the data line 20 can be arbitrarily selected to be multiplexed as the first touch electrode 30.
Of course, in other embodiments, the switching states of the first switching elements 21 may be controlled separately, so as to control a portion of the data lines 20 to be multiplexed as the first touch electrodes 30.
Furthermore, the transistors of the present application are all low-temperature polysilicon thin film transistors, oxide semiconductor thin film transistors or amorphous silicon thin film transistors. In addition, the transistors in the touch display panel 100 provided by the present application are all of the same type, so as to avoid the influence of the difference between the transistors of different types on the pixel driving circuit.
In addition, the transistors used in the following embodiments of the present application may be thin film transistors or field effect transistors or other devices with the same characteristics, and since the source and the drain of the transistors used herein are symmetrical, the source and the drain may be interchanged. And the transistors employed in the present application may include both P-type transistors and/or N-type transistors. The P-type transistor is turned on when the gate is at a low level and turned off when the gate is at a high level, and the N-type transistor is turned on when the gate is at a high level and turned off when the gate is at a low level.
In the following embodiments of the present application, the transistors are described as N-type transistors, but the present application is not limited thereto. Specifically, when the first switch element 21 is an N-type transistor, in the vertical blanking period, the control signal SW is at a high level, the first switch element 21 is turned on, and the first end a of each data line 20 is shorted with the first connection line 22; in the display mode, the control signal SW is at a low level, the first switch element 21 is turned off, and each data line 20 exists independently.
It should be noted that the touch display panel 100 provided in the present application further includes a second touch electrode 50. The second touch electrode 50 and the first touch electrode 30 are insulated. The second touch electrode 50 may be disposed on the same layer as other metal films in the touch display panel 100. For example, the second touch electrode 50 may be disposed on the same layer as the scan line or the pixel electrode, so as to simplify the process and further reduce the production cost. In addition, a metal layer may be added to the touch display panel 100 to form the second touch electrode 50, so as to avoid the problems of short circuit or signal crosstalk caused by too dense signal lines on the same layer.
In addition, the touch display panel 100 provided in the present application is an electromagnetic touch display panel. The basic principle of the electromagnetic touch display panel is to determine the touch display panel by using the magnetic field generated by the electromagnetic pen and the induction coil under the touch display panel 100 during the operation process. The sensing coil is formed by the first touch electrode 30 and the second touch electrode 50, respectively, which are well known to those skilled in the art and will not be described herein. The electromagnetic pen is a signal transmitting end, the first touch electrode 30 and the second touch electrode 50 are signal receiving ends, and magnetic flux changes when touch occurs, so that a touch position point is determined.
Specifically, in an embodiment of the present application, please continue to refer to fig. 1, the touch display panel 100 further includes a plurality of common electrode lines 40 arranged along the second direction Y. The second direction Y is perpendicular to the first direction X. The first end c of each common electrode line 40 is connected to the second connection line 41. The common electrode line 40 is reused as the second touch electrode 50. When the touch display panel 100 displays a screen, the second connection line 41 is connected to a common voltage V0.
The common voltage V0 is the same as the common voltage of the conventional liquid crystal display panel, and can be specifically set according to the type of the touch display panel 100 and the display requirement, which is not specifically limited in the present application.
The touch display panel 100 further includes a plurality of pixel units (not shown) arranged in an array. In an embodiment of the present invention, the number of the common electrode lines 40 is the same as the number of the rows of the pixel units, so as to provide the common voltage V0 to each pixel unit, so that the touch display panel 100 can display normally.
The common electrode line 40 is multiplexed into the second touch electrode 50, so that the film structure of the touch display panel 100 is further simplified, the touch display panel 100 is light and thin, and the production cost is reduced.
In the touch display panel 100 of the present application, the first direction X is taken as a row direction and intersects with the second direction Y which is taken as a column direction, so that the first touch electrode 30 and the second touch electrode 50 are arranged in an intersecting manner to jointly measure the touch position on the touch display panel 100. Optionally, the first direction X and the second direction Y are perpendicular to each other.
Further, when the touch display panel 100 is in the vertical blanking period, the second end b of at least one first touch electrode 30 is connected to the first driving signal, and the second end b of at least another first touch electrode 30 outputs the first detection signal; the second end d of at least one second touch electrode 50 is connected to the second driving signal, and the second end d of at least another second touch electrode 50 outputs the second detection signal.
It is understood that when a position in the touch display panel 100 is touched, the magnetic field of the coil at the position is changed, and the first detection signal output by the first touch electrode 30 is changed, so as to determine the coordinate value of the position along the first direction X. Similarly, the second detection signal output by the second touch electrode 50 changes, so as to determine the coordinate value of the position along the second direction Y, and finally determine the coordinate position of the touch position on the plane where the touch display panel 100 is located.
The first driving signal and the second driving signal may be the same or different. The first driving signal and the second driving signal may be a ground voltage or any low-level signal with a small voltage value, and may be specifically selected according to actual requirements, which is not specifically limited in this application.
In an embodiment of the present invention, the first driving signal can also be input into the first touch electrode 30 through the first connecting line 22. The second driving signal can also be input into the second touch electrode 50 through the second connection line 41.
In addition, it can be understood that, since the first ends a of the first touch electrodes 30 are electrically connected together through the first connecting lines 22, even if only the second end b of one first touch electrode 30 is connected to the first driving signal, the other first touch electrodes 30 for detection can form detection loops with the first touch electrodes 30 connected to the first driving signal, respectively, and the number of the detection loops is much larger than that of the detection loops of the existing coil structure, thereby improving the accuracy of touch detection. The second touch electrode 50 is also omitted here.
In the present application, the touch display panel 100 includes a display area AA and a non-display area VA disposed around the display area AA. The first connecting lines 22, the second connecting lines 41 and the first control lines 23 are located in the non-display area VA, the first connecting lines 22 and the first control lines 23 are arranged in an extending manner along the first direction X, and the second connecting lines 41 are arranged in an extending manner along the first direction Y, so that the influence of the first connecting lines 22 and the second connecting lines 41 on the aperture ratio of the touch display panel 100 is avoided, and the display quality is improved.
Referring to fig. 2, fig. 2 is a second structural schematic diagram of the touch display panel 100 provided in the present application. The difference from the touch display panel 100 shown in fig. 1 is that, in the embodiment of the present invention, each of the first touch electrodes 30 includes a plurality of data lines 20 connected in parallel. The second terminals b of the plurality of parallel data lines 20 are all connected to each other through the corresponding second switching elements 24.
Specifically, the second switching element 24 is a transistor. In the plurality of data lines 20 connected in parallel, the gate of each transistor is connected to a second control line 25; the source of each transistor is connected to a respective data line 20; the drains of each transistor are connected together to enable the parallel connection of a plurality of data lines 20.
Wherein the second control line 25 may be connected to the first control line 23 for receiving the same control signal SW. Of course, in other embodiments of the present application, the second control line 25 may also be provided separately from the first control line 23 and respectively connected to the control signals SW, and the control signals SW connected to the first control line 23 and the second control line 25 may be the same or different, which is not specifically limited in this application.
The number of the data lines 20 included in each of the first touch electrodes 30 may be designed according to actual requirements, which is not specifically limited in this application.
It can be understood that, since the resistance value of the first touch electrode 30 affects the touch sensitivity of the touch display panel 100, and the resistance value of the first touch electrode 30 is in inverse proportion to the width thereof, the larger the width of the first touch electrode 30 is, the higher the touch sensitivity is. However, considering that the first touch electrodes 30 and the data lines 20 are multiplexed, increasing the width of the first touch electrodes 30 affects the aperture ratio of the touch display panel 100. Therefore, each of the first touch electrodes 30 is configured as a plurality of data lines 20 connected in parallel, so that the resistance of the first touch electrodes 30 can be effectively reduced, and the width of the data lines 20 can be set smaller to avoid affecting the aperture ratio of the touch display panel 100.
Further, please refer to fig. 3, wherein fig. 3 is a schematic diagram of a third structure of the touch display panel 100 provided in the present application. The difference from the touch display panel 100 shown in fig. 2 is that in the touch display panel 100 provided in the embodiment of the present application, each of the second touch electrodes 50 includes a plurality of parallel common electrode lines 40.
The number of the common electrode lines 40 included in each second touch electrode 50 may be designed according to actual requirements, which is not specifically limited in this application.
Among the plurality of parallel common electrode lines 40, the first end c of each common electrode line 40 is connected to the second connection line 41. The second ends d of each common electrode line 40 are connected together. Similarly, since the resistance value of the second touch electrode 50 affects the touch sensitivity of the touch display panel 100, the resistance value of the second touch electrode 50 can be effectively reduced by setting the second touch electrode 50 to a plurality of parallel common electrode lines 40, thereby improving the touch sensitivity.
Referring to fig. 4, fig. 4 is a fourth structural schematic diagram of the touch display panel 100 provided in the present application. The difference from the touch display panel 100 shown in fig. 3 is that in the touch display panel 100 provided in the embodiment of the present application, at least one data line 20 is included between two adjacent first touch electrodes 30. The first end a of the data line 20 between two adjacent first touch electrodes 30 is connected to the first connection line 22 through the corresponding first switch element 21. The second end b of the data line 20 between two adjacent first touch electrodes 30 is suspended.
The number of the data lines 20 between two adjacent first touch electrodes 30 may be designed according to actual requirements, which is not specifically limited in this application.
The data lines 20 between two adjacent first touch electrodes 30 are not used for detecting the touch signals. However, the first end a of each data line 20 is connected to the first connection line 22 through the corresponding first switching element 21, which ensures uniformity of load in the display area AA and uniformity of interference of the first driving signal and the first detection signal with respect to the display in the display area AA.
Further, at least one common electrode line 40 is included between two adjacent second touch electrodes 50. The first end c of the common electrode line 40 between two adjacent second touch electrodes 50 is connected to the second connection line 41. The second end d of the common electrode line 40 between two adjacent second touch electrodes 50 is suspended.
The number of the common electrode lines 40 between two adjacent second touch electrodes 50 may be designed according to actual requirements, which is not specifically limited in this application.
Similarly, the common electrode line 40 between two adjacent second touch electrodes 50 is not used for detecting the touch signal. However, the first ends c of all the common electrode lines 40 are connected to the second connection lines 41, so that uniformity of load in the display area AA is ensured, and uniformity of interference of the second driving signal and the second detection signal to the display in the display area AA is ensured.
Referring to fig. 5, fig. 5 is a schematic diagram of a fifth structure of the touch display panel 100 provided in the present application. The difference from the touch display panel 100 shown in fig. 4 is that in the touch display panel 100 provided in the embodiment of the present application, the first ends c of the common electrode lines 40 between two adjacent second touch electrodes 50 are separately connected together to receive the common voltage V0.
In the embodiment of the present application, the common electrode lines 40 multiplexed as the second touch electrodes 50 are connected to the second connection lines 41, and the common electrode lines 40 not multiplexed as the second touch electrodes 50 are separately connected, so that signal transmission of two types of common electrode lines 40 can be separately controlled. Specifically, when the touch display panel 100 is in the display mode, all the common electrode lines 40 are connected to the common voltage V0, so that the touch display panel 100 performs the image display. When the touch display panel 100 is in the vertical blanking period, the common electrode line 40 multiplexed as the second touch electrode 50 may access the first detection signal through the second connection line 41; the common electrode line 40 which is not reused as the second touch electrode 50 still keeps being connected to the common voltage V0; thereby improving the flexibility of signal input.
Referring to fig. 6, fig. 6 is a sixth structural schematic diagram of the touch display panel 100 provided in the present application. The difference from the touch display panel 100 shown in fig. 1 is that in the touch display panel 100 provided in the embodiment of the present application, the first end a of each data line 20 multiplexed as the first touch electrode 30 is connected to the first connection line 22 through the first switch element 21, and the data line 20 not multiplexed as the first touch electrode 30 is only used for transmitting data signals.
It can be understood that, for the touch display panel 100 with high resolution, the number of the data lines 20 is large, and the arrangement is dense. Therefore, a portion of the data line 20 can be selected to be multiplexed as the first touch electrode 30. While the touch function of the touch display panel 100 is realized, the first touch electrodes 30 can be prevented from being arranged too densely to cause energy waste, and meanwhile, the number of the first switch elements 21 can be reduced, so that the risk of signal crosstalk is reduced, and the production cost is saved.
It should be noted that the touch display panel 100 may further include other devices, such as a Gate Driver on Array (GOA) circuit, an encapsulation layer, and the like. Other devices of the touch display panel 100 are well known to those skilled in the art, and are not described herein.
The touch display panel 100 provided by the present application utilizes the vertical blanking period between adjacent frames to multiplex the data lines 20 into the first touch electrodes 30, and simultaneously multiplexes the common electrode lines 40 into the second touch electrodes 50, so that the touch display integration of the touch display panel 100 is realized, the touch display panel 100 is light and thin, and the production cost is reduced.
Accordingly, the present application further provides a display device, which includes the touch display panel 100 described in any of the above embodiments, and the touch display panel 100 may refer to the above contents specifically, which is not described herein again. In addition, the display device may be a smart phone, a tablet computer, an electronic book reader, a smart watch, a camera, a game machine, and the like, which is not limited in this application.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a display device 1000 according to the present application. In the display device 1000 provided in the embodiment of the present application, the display device 1000 further includes a driving chip 200 and a circuit board 300. The driving Chip 200 is disposed On a Chip On Film (COF) 400. The chip on film 400 is bonded to the substrate 10. The circuit board 300 (PCB) is connected to the touch display panel 100 through a flip-chip film 400. The first touch electrode 30 is connected to the driving chip 200 through the first trace 31. The second touch electrode 50 is connected to the circuit board 300 through the second trace 51, so as to transmit the second detection signal to the circuit board 300 through the second trace 51 directly.
The second trace 51 is located in the non-display area VA to avoid interference with signal traces in the display area AA.
Here, since at least a portion of the data line 20 is multiplexed as the first touch electrode 30, the driving chip 200 integrates a touch signal processing function. On the one hand, the driving chip 200 transmits the data signal to the touch display panel 100 through the data line 20. On the other hand, the driving chip 200 receives the first detection signal generated by the first touch electrode 30 through the data line 20 and transmits the first detection signal to the circuit board 300, compared with the technical scheme that the signal transmission line is arranged in the non-display area in the prior art, the frame area of the touch display panel 100 can be effectively reduced.
The present application provides a display device 1000. The display device 1000 includes a touch display panel 100. In the touch display panel 100, the data lines 20 are multiplexed into the first touch electrodes 30 and the common electrode lines 40 are multiplexed into the second touch electrodes 50 by using the vertical blanking periods between adjacent frames, so that the touch display integration of the touch display panel 100 is realized, the touch display panel 100 is light and thin, and the production cost is reduced.
The touch display panel and the manufacturing method of the display device provided by the present application are described in detail above, and a specific example is applied to illustrate the principle and the implementation manner of the present application, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A touch display panel, comprising:
a substrate; and
the data lines are arranged on the substrate and arranged along a first direction, and a first end of each data line is connected with the first connecting line through a corresponding first switch element;
when the display panel is in a vertical blanking period, the first switch element is turned on, the data line is in short circuit with the first connecting line through the switch element, and at least part of the data line is multiplexed as a first touch electrode.
2. The touch display panel according to claim 1, further comprising a plurality of common electrode lines arranged along a second direction, wherein the second direction is perpendicular to the first direction, at least a part of the common electrode lines are reused as second touch electrodes, and first ends of the common electrode lines reused as the second touch electrodes are connected to second connection lines;
when the touch display panel displays a picture, the second connecting line is connected with a common voltage.
3. The touch display panel according to claim 2, wherein the first switch elements are transistors, a gate of each of the transistors is connected to a first control line, the first control line is connected to a control signal, a source of each of the transistors is connected to the corresponding data line, and a drain of each of the transistors is connected to the first connection line.
4. The touch display panel according to claim 2, wherein when the touch display panel is in a vertical blanking period, a second terminal of at least one of the first touch electrodes is connected to a first driving signal, and a second terminal of at least another one of the first touch electrodes outputs a first detection signal;
the second end of at least one second touch electrode is connected to a second driving signal, and the second end of at least one other second touch electrode outputs a second detection signal.
5. The touch display panel according to claim 2, wherein each of the first touch electrodes comprises a plurality of data lines connected in parallel;
second ends of the plurality of parallel data lines are connected to each other through corresponding second switching elements.
6. The touch display panel according to claim 5, wherein at least one data line is included between two adjacent first touch electrodes, a first end of the data line between two adjacent first touch electrodes is connected to the first connection line through the corresponding first switch element, and a second end of the data line between two adjacent first touch electrodes is suspended.
7. The touch display panel according to claim 2, wherein each of the second touch electrodes comprises a plurality of parallel common electrode lines.
8. The touch display panel according to claim 7, wherein at least one common electrode line is included between two adjacent second touch electrodes, a first end of the common electrode line between two adjacent second touch electrodes is connected to the second connection line, and a second end of the common electrode line between two adjacent second touch electrodes is suspended.
9. A display device comprising the touch display panel according to any one of claims 1 to 8.
10. The display device according to claim 9, further comprising a driving chip and a circuit board, wherein the driving chip is disposed on a chip on film, and the circuit board is connected to the touch display panel through the chip on film;
the second end of the first touch electrode is connected with the driving chip through a first wire.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113835566A (en) * | 2021-09-27 | 2021-12-24 | Tcl华星光电技术有限公司 | Substrate and display panel |
| WO2023045021A1 (en) * | 2021-09-27 | 2023-03-30 | Tcl华星光电技术有限公司 | Substrate and display panel |
| WO2023070528A1 (en) * | 2021-10-25 | 2023-05-04 | 惠州华星光电显示有限公司 | Electromagnetic touch-control display panel |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203149528U (en) * | 2013-03-29 | 2013-08-21 | 京东方科技集团股份有限公司 | Touch display device |
| CN103279237A (en) * | 2012-11-23 | 2013-09-04 | 上海天马微电子有限公司 | Built-in touch screen and touch display device |
| CN104020904A (en) * | 2014-05-28 | 2014-09-03 | 京东方科技集团股份有限公司 | Capacitive type embedded touch screen and display device |
| US20150049050A1 (en) * | 2013-03-29 | 2015-02-19 | Boe Technology Group Co., Ltd. | Touch display apparatus and driving method thereof |
| CN104991678A (en) * | 2015-07-28 | 2015-10-21 | 京东方科技集团股份有限公司 | Array substrate and driving method thereof, manufacturing method and display device |
| CN105068694A (en) * | 2015-09-07 | 2015-11-18 | 上海天马微电子有限公司 | Touch control display panel and drive method of touch control display panel |
| CN106354313A (en) * | 2016-08-29 | 2017-01-25 | 厦门天马微电子有限公司 | Touch display panel and touch display device |
| CN107577098A (en) * | 2017-09-22 | 2018-01-12 | 京东方科技集团股份有限公司 | A kind of array base palte, liquid crystal display panel and display device |
| CN108108070A (en) * | 2016-11-24 | 2018-06-01 | 鸿富锦精密工业（深圳）有限公司 | TFT substrate and apply its touch-control display panel |
| CN210324162U (en) * | 2019-11-13 | 2020-04-14 | 京东方科技集团股份有限公司 | Embedded self-capacitance touch display substrate and touch display device |
-
2021
- 2021-04-26 CN CN202110463699.5A patent/CN113176835B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103279237A (en) * | 2012-11-23 | 2013-09-04 | 上海天马微电子有限公司 | Built-in touch screen and touch display device |
| CN203149528U (en) * | 2013-03-29 | 2013-08-21 | 京东方科技集团股份有限公司 | Touch display device |
| US20150049050A1 (en) * | 2013-03-29 | 2015-02-19 | Boe Technology Group Co., Ltd. | Touch display apparatus and driving method thereof |
| CN104020904A (en) * | 2014-05-28 | 2014-09-03 | 京东方科技集团股份有限公司 | Capacitive type embedded touch screen and display device |
| CN104991678A (en) * | 2015-07-28 | 2015-10-21 | 京东方科技集团股份有限公司 | Array substrate and driving method thereof, manufacturing method and display device |
| CN105068694A (en) * | 2015-09-07 | 2015-11-18 | 上海天马微电子有限公司 | Touch control display panel and drive method of touch control display panel |
| CN106354313A (en) * | 2016-08-29 | 2017-01-25 | 厦门天马微电子有限公司 | Touch display panel and touch display device |
| CN108108070A (en) * | 2016-11-24 | 2018-06-01 | 鸿富锦精密工业（深圳）有限公司 | TFT substrate and apply its touch-control display panel |
| CN107577098A (en) * | 2017-09-22 | 2018-01-12 | 京东方科技集团股份有限公司 | A kind of array base palte, liquid crystal display panel and display device |
| CN210324162U (en) * | 2019-11-13 | 2020-04-14 | 京东方科技集团股份有限公司 | Embedded self-capacitance touch display substrate and touch display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113835566A (en) * | 2021-09-27 | 2021-12-24 | Tcl华星光电技术有限公司 | Substrate and display panel |
| WO2023045021A1 (en) * | 2021-09-27 | 2023-03-30 | Tcl华星光电技术有限公司 | Substrate and display panel |
| WO2023070528A1 (en) * | 2021-10-25 | 2023-05-04 | 惠州华星光电显示有限公司 | Electromagnetic touch-control display panel |
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| Publication number | Publication date |
|---|---|
| CN113176835B (en) | 2023-01-24 |
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