Display panel and display apparatus
By setting control transistors and voltage regulator transistors in the display panel, and using control signal lines and voltage regulation control lines with different level configurations, the problem of poor touch stability of time-division driving sensing electrodes is solved, and a more stable touch and display effect is achieved.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2026-04-02
AI Technical Summary
When existing display panels use time-division driving sensing electrodes, touch stability is poor, and problems such as accidental touches and display malfunctions are prone to occur.
By setting a control transistor and a voltage regulator transistor between the sensing electrode and the sensing signal line, and utilizing different level configurations of the control signal line and the voltage regulator control line, it is ensured that the sensing electrode receives a regulated signal when no sensing signal is input, thus avoiding the influence of other signals when the sensing electrode is floating.
It improves touch stability and display stability, prevents accidental touches and display malfunctions, and enhances touch accuracy and display uniformity.
Smart Images

Figure CN2024129218_02042026_PF_FP_ABST
Abstract
Description
Display panel and display device TECHNICAL FIELD
[0001] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND
[0002] In order to realize touch function, display devices in the prior art commonly integrate display driving and touch driving on a display panel, and in order to reduce cost and thickness of the display device, a common electrode block in a common electrode layer is reused as a sensing electrode. With the development of display devices in the direction of large size, narrow frame and high screen ratio, in order to keep touch precision unchanged, more touch wires need to be added, and each touch wire needs a corresponding channel output signal on a driving chip, while the number of channels of a driving signal is limited, and accordingly more driving chips need to be added, resulting in high cost and large frame of the display device. In order to solve the above problems, in the display device in the prior art, one sensing signal line is used to control two sensing electrodes in the plane, so as to reduce touch wires without sacrificing touch precision. However, the above scheme has the following problems: when one of the sensing electrodes does not input a signal, the sensing electrode is in a passive state without any direct current or alternating voltage for signal transmission, and the sensing electrode is easily affected by other signals to cause false touch, and the sensing electrode also affects other signals to cause display defects.
[0003] Therefore, the display panel using time-sharing driving of the sensing electrode in the prior art has the technical problem of poor touch stability. SUMMARY
[0004] Embodiments of the present application provide a display panel and a display device to solve the technical problem of poor touch stability of the display panel using time-sharing driving of the sensing electrode in the prior art.
[0005] In a first aspect, embodiments of the present application provide a display panel, which comprises a plurality of sensing electrodes arranged in an array and a plurality of sensing signal lines, each of the sensing signal lines is electrically connected with at least two of the sensing electrodes, a control transistor and a voltage stabilizing transistor are arranged between each of the sensing electrodes and the corresponding sensing signal line, a gate of the control transistor is connected with a control signal line, a first electrode of the control transistor is connected with the sensing electrode, a second electrode of the control transistor is connected with the sensing signal line, a gate of the voltage stabilizing transistor is connected with a voltage stabilizing control line, a first electrode of the voltage stabilizing transistor is connected with the sensing electrode, and a second electrode of the voltage stabilizing transistor is connected with a voltage stabilizing driving line.
[0006] The gate electrodes of the control transistors connected to the sensing electrodes in the same row are connected to the same control signal line, the gate electrodes of the control transistors connected to the sensing electrodes in different rows are connected to different control signal lines, and the second electrodes of the control transistors connected to the sensing electrodes in the same row are connected to different sensing signal lines.
[0007] The sensing electrodes are configured to input a common signal in a display stage, and are configured to input a sensing signal in a touch stage. When the display panel is configured to the touch stage, one control signal line inputs an effective level, other control signal lines input an ineffective level, one voltage stabilizing control line inputs an ineffective level, other voltage stabilizing control lines input an effective level, the sensing electrodes connected to the control transistors connected to the control signal line inputting the effective level are the same as the sensing electrodes connected to the voltage stabilizing transistors connected to the voltage stabilizing control line inputting the ineffective level, and the voltage stabilizing drive line is configured to output a voltage stabilizing signal.
[0008] In a second aspect, the embodiments of the present application provide a display device, which comprises the display panel as described in any of the above embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0009] The technical solutions and other beneficial effects of the present application will be apparent from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings.
[0010] FIG. 1 is a schematic diagram of a comparative display device provided by the embodiments of the present application.
[0011] FIG. 2 is a timing diagram of the comparative display device provided by the embodiments of the present application.
[0012] FIG. 3 is a first schematic diagram of a display panel provided by the embodiments of the present application.
[0013] FIG. 4 is a first timing diagram of the display panel configured to a touch stage provided by the embodiments of the present application.
[0014] FIG. 5 is a second schematic diagram of a display panel provided by the embodiments of the present application.
[0015] FIG. 6 is a third schematic diagram of a display panel provided by the embodiments of the present application.
[0016] FIG. 7 is a fourth schematic diagram of a display panel provided by the embodiments of the present application.
[0017] FIG. 8 is a fifth schematic view of a display panel according to an embodiment of the present application.
[0018] FIG. 9 is a sixth schematic view of a display panel according to an embodiment of the present application.
[0019] FIG. 10 is a second timing diagram of a display panel configured in a touch phase according to an embodiment of the present application.
[0020] FIG. 11 is a schematic view of a display device according to an embodiment of the present application. Embodiments of the present application
[0021] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.
[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.
[0023] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0024] In this application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature with respect to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "on top of" of a first feature with respect to a second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. "Under", "below" and "underneath" of a first feature with respect to a second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.
[0025] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplification, the components and arrangements of particular examples are described in the following disclosure. Of course, they are only examples and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides various specific examples of processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.
[0026] FIG. 1 is a schematic diagram of a contrast display device provided by an embodiment of the present application. FIG. 2 is a timing diagram of the contrast display device provided by an embodiment of the present application.
[0027] In order to illustrate the principle of the technical problem of the embodiments of the present application, a comparative display device is provided, which can be understood as not being the prior art in the art. As shown in FIG. 1 and FIG. 2, the comparative display device includes a first electrode block Sensor011, a second electrode block Sensor012, a third electrode block Sensor021 and a fourth electrode block Sensor022. In order to reduce the number of touch signal lines, two electrode blocks in the same column are connected to the same sensing line, for example, the first electrode block Sensor011 and the second electrode block Sensor012 are connected to the first sensing line RX01 in FIG. 1, and the third electrode block Sensor021 and the fourth electrode block Sensor022 are connected to the second sensing line RX02. In order to realize the independent work of each electrode block, a first sensing transistor T01, a second sensing transistor T02, a third sensing transistor T03 and a fourth sensing transistor T04 are respectively connected to each electrode block, and a first touch control line TP01 and a second touch control line TP02 are arranged to control each transistor. As can be seen from FIG. 1 and FIG. 2, when the first touch control line TP01 inputs a high potential and the second touch control line TP02 inputs a low potential, the first sensing transistor T01 and the third sensing transistor T03 are turned on, and the corresponding first sensing line RX01 and second sensing line RX02 output signals to the first electrode block Sensor011 and the third electrode block Sensor021 respectively. When the first touch control line TP01 inputs a low potential and the second touch control line TP02 inputs a high potential, the second sensing transistor T02 and the fourth sensing transistor T04 are turned on, and the corresponding first sensing line RX01 and second sensing line RX02 output signals to the second electrode block Sensor012 and the fourth electrode block Sensor022 respectively, so that one sensing line controls two electrode blocks. However, as can be seen from FIG. 2 and the above description, when one of the first touch control line TP01 and the second touch control line TP02 is at a low potential, the corresponding electrode block does not input any signal, which is equivalent to the electrode block being in a passive state. At this time, the electrode block will be coupled with other signal lines or electrodes, and will affect other signal lines, and is easily affected by other electrode blocks, resulting in that touch control is prone to error touch, display is prone to display defects, the stability of the electrode block is poor, and the touch control and display stability are affected. As shown in FIG. 2, when the first electrode block Sensor011, the second electrode block Sensor012, the third electrode block Sensor021 and the fourth electrode block Sensor022 are interfered, a certain signal will be generated. The signal shown in FIG. 2 is regular, but in actuality, the signal can be irregular and fluctuate greatly, resulting in abnormal touch control and display. Therefore, the display panel using time-sharing driving sensing electrode in the prior art has the technical problem of poor touch control stability.
[0028] Embodiments of the present application are directed to the above problems, and provide a display panel and a display device to solve the above technical problems.
[0029] FIG. 3 is a first schematic diagram of a display panel according to an embodiment of the present application. FIG. 4 is a first timing diagram of a display panel configured in a touch stage according to an embodiment of the present application. FIG. 5 is a second schematic diagram of a display panel according to an embodiment of the present application. FIG. 6 is a third schematic diagram of a display panel according to an embodiment of the present application. FIG. 7 is a fourth schematic diagram of a display panel according to an embodiment of the present application. FIG. 8 is a fifth schematic diagram of a display panel according to an embodiment of the present application. FIG. 9 is a sixth schematic diagram of a display panel according to an embodiment of the present application. FIG. 10 is a second timing diagram of a display panel configured in a touch stage according to an embodiment of the present application.
[0030] As shown in FIG. 3 and FIG. 4, the display panel according to an embodiment of the present application includes a plurality of sensing electrodes 11 and a plurality of sensing signal lines 12 arranged in an array. Each of the sensing signal lines 12 is electrically connected to at least two of the sensing electrodes 11. A control transistor 13 and a voltage stabilizing transistor 15 are arranged between each of the sensing electrodes 11 and the corresponding sensing signal line 12. The gate of the control transistor 13 is connected to a control signal line 14. The first electrode of the control transistor 13 is connected to the sensing electrode 11. The second electrode of the control transistor 13 is connected to the sensing signal line 12. The gate of the voltage stabilizing transistor 15 is connected to a voltage stabilizing control line 16. The first electrode of the voltage stabilizing transistor 15 is connected to the sensing electrode 11. The second electrode of the voltage stabilizing transistor 15 is connected to a voltage stabilizing drive line LFD.
[0031] In the display panel according to an embodiment of the present application, the gates of the control transistors 13 connected to the sensing electrodes 11 in the same row are connected to the same control signal line 14. The gates of the control transistors 13 connected to the sensing electrodes 11 in different rows are connected to different control signal lines 14. The second electrodes of the control transistors 13 connected to the sensing electrodes 11 in the same row are connected to different sensing signal lines 12. The gates of the voltage stabilizing transistors 15 connected to the sensing electrodes 11 in the same row are connected to the same voltage stabilizing control line 16. The gates of the voltage stabilizing transistors 15 connected to the sensing electrodes 11 in different rows are connected to different voltage stabilizing control lines 16. The second electrodes of the voltage stabilizing transistors 15 are all connected to the voltage stabilizing drive line LFD.
[0032] The sensing electrode 11 is configured to input a common signal in a display stage, and the sensing electrode 11 is configured to input a sensing signal in a touch stage. When the display panel 1 is configured to the touch stage, one control signal line 14 inputs an effective level, other control signal lines 14 input an ineffective level, one voltage stabilizing control line 16 inputs an ineffective level, other voltage stabilizing control lines 16 input an effective level, and the sensing electrode 11 connected to the control transistor 13 connected to the control signal line 14 inputting the effective level is the same as the sensing electrode 11 connected to the voltage stabilizing transistor 15 connected to the voltage stabilizing control line 16 inputting the ineffective level. The voltage stabilizing drive line LFD is configured to output a voltage stabilizing signal.
[0033] The display panel provided by the embodiment of the present application is configured to make each voltage stabilizing transistor connected to one sensing electrode, the gate of the voltage stabilizing transistor connected to a voltage stabilizing control line, the first electrode of the voltage stabilizing transistor connected to the sensing electrode, and the second electrode of the voltage stabilizing transistor connected to a voltage stabilizing drive line. When the display panel is configured to the touch stage, one control signal line inputs an effective level, other control signal lines input an ineffective level, one voltage stabilizing control signal line inputs an ineffective level, other voltage stabilizing control signal lines input an effective level, and the voltage stabilizing drive line is configured to output a voltage stabilizing signal. Therefore, when the sensing electrode does not input a sensing signal, the sensing electrode can input a voltage stabilizing signal, so that the signal on the sensing electrode is stable, the sensing electrode is prevented from being affected by other signals or affecting other signals, the false touch is prevented, the display failure is prevented, and the touch stability is improved.
[0034] Specifically, it can be understood that, in the embodiment of the present application, the sensing electrode is multiplexed as a common electrode, that is, a common electrode layer in the display panel is used to form a plurality of electrodes arranged at intervals, and the electrodes are multiplexed as sensing electrodes and common electrodes. In the touch stage, the sensing electrode transmits a sensing signal to realize the touch function, and in the display stage, the sensing electrode transmits a common signal to realize the display function.
[0035] Specifically, the effective level refers to an electric signal capable of turning on a transistor, and the ineffective level refers to an electric signal capable of turning off a transistor. When a high potential signal is input to the gate of the transistor, the transistor is turned on, and therefore the effective level refers to the high potential signal. When a low potential signal is input to the gate of the transistor, the transistor is turned on, and therefore the effective level refers to the low potential signal. The embodiment of the present application is described by taking the case that the transistor is turned on when a high potential signal is input to the gate of the transistor as an example. It can be understood that the type of the transistor can be changed so that the transistor is turned on when a low potential signal is input to the gate of the transistor.
[0036] Specifically, each sensing signal line in the embodiment of the present application is electrically connected with at least two sensing electrodes, and a transistor is arranged between the sensing signal line and the sensing electrode, and the on or off of the transistor is controlled by a control circuit, so as to realize the time-sharing driving of the multiple sensing electrodes electrically connected with the same sensing signal line, and each sensing electrode can work independently, thereby improving the touch precision.
[0037] As shown in FIG. 3, taking the example of connecting the adjacent two sensing electrodes in the adjacent two columns of sensing electrodes by a sensing signal line, it can be seen that the sensing signal line 12 includes a first sensing signal line RX1 and a second sensing signal line RX2, the sensing electrode 11 includes a first sensing electrode Sensor11, a second sensing electrode Sensor12, a third sensing electrode Sensor21 and a fourth sensing electrode Sensor22, the first sensing electrode Sensor11, the second sensing electrode Sensor12, the third sensing electrode Sensor21 and the fourth sensing electrode Sensor22 can be the sensing electrode of the first row and the first column, the sensing electrode of the second row and the first column, the sensing electrode of the first row and the second column, and the sensing electrode of the second row and the second column respectively, and correspondingly, the control transistor 13 includes a first control transistor T11, a second control transistor T12, a third control transistor T13 and a fourth control transistor T14, the control signal line 14 includes a first control signal line TP-MUX1 and a second control signal line TP-MUX2, the voltage stabilizing transistor 15 includes a first voltage stabilizing transistor T21, a second voltage stabilizing transistor T22, a third voltage stabilizing transistor T23 and a fourth voltage stabilizing transistor T24, and the voltage stabilizing control line 16 includes a first voltage stabilizing control line TP-MUX-MSC1 and a second voltage stabilizing control line TP-MUX-MSC2.
[0038] As shown in Fig. 3, it can be seen that a control transistor 13 and a voltage stabilizing transistor 15 are arranged between each sensing electrode 11 and the corresponding sensing signal line 12, for example, the first control transistor T11 and the first voltage stabilizing transistor T21 are arranged between the first sensing electrode Sensor 11 and the corresponding first sensing signal line RX1, the gate of the first control transistor T11 and the gate of the third control transistor T13 are connected to the first control signal line TP-MUX1, the gate of the second control transistor T12 and the gate of the fourth control transistor T14 are connected to the second control signal line TP-MUX2, the first electrode of the first control transistor T11, the first electrode of the second control transistor T12, the first electrode of the third control transistor T13 and the first electrode of the fourth control transistor T14 are connected to the first sensing electrode Sensor 11, the second sensing electrode Sensor 12, the third sensing electrode Sensor 21 and the fourth sensing electrode Sensor 22 respectively, the second electrode of the first control transistor T11 and the second electrode of the second control transistor T12 are connected to the first sensing signal line RX1, the second electrode of the third control transistor T13 and the second electrode of the fourth control transistor are connected to the second sensing signal line RX2.
[0039] As shown in Fig. 3, the gate of the first voltage stabilizing transistor T21 and the gate of the third voltage stabilizing transistor T23 are connected to the first voltage stabilizing control line TP-MUX-MSC1, the gate of the second voltage stabilizing transistor T22 and the gate of the fourth voltage stabilizing transistor T24 are connected to the second voltage stabilizing control line TP-MUX-MSC2, the first electrode of the first voltage stabilizing transistor T21, the first electrode of the second voltage stabilizing transistor T22, the first electrode of the third voltage stabilizing transistor T23 and the first electrode of the fourth voltage stabilizing transistor T24 are connected to the first sensing electrode Sensor 11, the second sensing electrode Sensor 12, the third sensing electrode Sensor 21 and the fourth sensing electrode Sensor 22 respectively, the second electrode of the first voltage stabilizing transistor T21, the second electrode of the second voltage stabilizing transistor T22, the second electrode of the third voltage stabilizing transistor T23 and the second electrode of the fourth voltage stabilizing transistor T24 are connected to the voltage stabilizing driving line LFD.
[0040] As shown in FIG. 4, it can be seen that when the display panel is configured as a touch stage, taking the display panel shown in FIG. 3 as an example, at a first time period t1, the first control signal line TP-MUX1 inputs a valid level, the second control signal line TP-MUX2 inputs an invalid level, the first voltage stabilization control line TP-MUX-MSC1 inputs an invalid level, the second voltage stabilization control line TP-MUX-MSC2 inputs a valid level, and at the same time, the first sensing signal line RX1 and the second sensing signal line RX2 input sensing signals, so that the first sensing electrode Sensor11 and the third sensing electrode Sensor21 input the sensing signals, and the second sensing electrode Sensor12 and the fourth sensing electrode Sensor22 input the voltage stabilization signals, so that when the first sensing electrode Sensor11 and the third sensing electrode Sensor21 realize touch, the second sensing electrode Sensor12 and the fourth sensing electrode Sensor22 input the voltage stabilization signals; at a second time period t2, the first control signal line TP-MUX1 inputs an invalid level, the second control signal line TP-MUX2 inputs a valid level, the first voltage stabilization control line TP-MUX-MSC1 inputs a valid level, the second voltage stabilization control line TP-MUX-MSC2 inputs an invalid level, and at the same time, the first sensing signal line RX1 and the second sensing signal line RX2 input sensing signals, so that the first sensing electrode Sensor11 and the third sensing electrode Sensor21 input the voltage stabilization signals, and the second sensing electrode Sensor12 and the fourth sensing electrode Sensor22 input the sensing signals, so that when the second sensing electrode Sensor12 and the fourth sensing electrode Sensor22 realize touch, the first sensing electrode Sensor11 and the third sensing electrode Sensor21 input the voltage stabilization signals, avoiding the state of potential suspension of the sensing electrode, resulting in coupling between the sensing electrode and other electrodes or signal lines, avoiding the sensing electrode from being affected by other signals, also avoiding the sensing electrode from affecting other signals, and improving touch stability and display stability.
[0041] Similarly, taking the comparative display device provided in the embodiments of the present application as an example, in the display stage, the first touch control line TP01 and the second touch control line TP02 will both output a high potential signal, so that each transistor is turned on, and the common voltage is output to each electrode block through the sensing line, realizing the display function. However, as can be seen from FIG. 1, one sensing line needs to input signals to two electrode blocks, resulting in a large load of the sensing line, and the signal supply capacity is insufficient, which may cause the signal transmitted from the sensing line to the electrode block to be unable to maintain a stable voltage, and different voltage of different electrode blocks may occur, resulting in uneven display, and further causing display abnormalities.
[0042] To solve the above problems, in some embodiments, as shown in FIG. 5, the display panel 1 further comprises a switch signal line TPSW, a common signal line COM and a switch transistor 17, the gate of the switch transistor 17 is connected with the switch signal line TPSW, the first electrode of the switch transistor 17 is electrically connected with the sensing electrode 11, and the second electrode of the switch transistor 17 is connected with the common signal line COM. When the display panel 1 is configured to be in a display stage, the switch signal line TPSW inputs an effective level. By setting the switch transistor, the switch signal line and the common signal line, when the display panel is in the display stage, the switch signal line inputs the effective level to turn on the switch transistor, and then the common signal line can output the common signal to each sensing electrode, so as to maintain a stable signal for each sensing electrode, improve the common voltage uniformity of each sensing electrode, and enable the display panel to display normally.
[0043] Specifically, as shown in FIG. 5, the switch transistor 17 comprises a first transistor T31, a second transistor T32, a third transistor T33 and a fourth transistor T34, the gate of the first transistor T31, the gate of the second transistor T32, the gate of the third transistor T33 and the gate of the fourth transistor T34 are all connected with the switch signal line TPSW, the first electrode of the first transistor T31, the first electrode of the second transistor T32, the first electrode of the third transistor T33 and the first electrode of the fourth transistor T34 are respectively connected with the first sensing electrode Sensor 11, the second sensing electrode Sensor 12, the third sensing electrode Sensor 21 and the fourth sensing electrode Sensor 22, and the second electrode of the first transistor T31, the second electrode of the second transistor T32, the second electrode of the third transistor T33 and the second electrode of the fourth transistor T34 are connected with the common signal line.
[0044] Specifically, when the display panel is in a touch stage, the switch signal line inputs an invalid level to turn off the switch transistor. The common signal line can continuously output the common signal or can only input the common signal when the display panel is in the display stage.
[0045] In some embodiments, the switch transistor 17 is arranged between the sensing electrode 11 and the voltage stabilizing transistor 15, or arranged between the sensing signal line 12 and the control transistor 13, or arranged on the side of the sensing electrode 11 away from the sensing signal line 12.
[0046] Specifically, when the switch transistor is arranged, the switch transistor can be arranged between the sensing electrode and the voltage stabilizing transistor, or arranged between the sensing signal line and the control transistor, or arranged on the side of the sensing electrode away from the sensing signal line.
[0047] In some embodiments, as shown in FIG. 6, the switch transistor 17 includes a first switch transistor 171 and a second switch transistor 172, and each of the inductive electrodes 11 is provided with a corresponding first switch transistor 171 between the inductive electrode 11 and the inductive signal line 12, and each of the inductive signal lines 12 is provided with a corresponding second switch transistor 172 between the inductive signal line 12 and the corresponding inductive electrodes 11. The first switch transistor 171 is arranged between the inductive electrode 11 and the voltage stabilizing transistor 15, and the second switch transistor 172 is arranged between the control transistor 13 and the inductive signal line 12. By arranging the first switch transistor between the inductive electrode and the voltage stabilizing transistor, and arranging the second switch transistor between the inductive signal line and the control transistor, the uniformity of the common voltage on each inductive electrode during the display stage can be further improved, the display unevenness caused by voltage unevenness can be eliminated, and the display effect can be improved.
[0048] Specifically, as shown in FIG. 6, the first switch transistor 171 can include a first transistor T31, a second transistor T32, a third transistor T33, and a fourth transistor T34, and the connection relationship can refer to the above description. The second switch transistor 172 includes a fifth transistor T35 and a sixth transistor T36, the gate of the fifth transistor T35 and the gate of the sixth transistor T36 are connected with the switch signal line TPSW, the first electrode of the fifth transistor T35 is connected with the second electrode of the first control transistor T11 and the second electrode of the second control transistor T12, the first electrode of the sixth transistor T36 is connected with the second electrode of the third control transistor T13 and the second electrode of the fourth control transistor T14, and the second electrode of the fifth transistor T35 and the second electrode of the sixth transistor T36 are connected with the common signal line COM.
[0049] In some embodiments, as shown in FIG. 7, the switch transistor 17 further includes a third switch transistor 173, and the third switch transistor 173 is arranged on the side of the inductive electrode 11 away from the inductive signal line 12, and each of the inductive electrodes 11 is connected with a first electrode of a corresponding third switch transistor 173. By arranging the third switch transistor, and arranging the third switch transistor on the side of the inductive electrode away from the inductive signal line, the stability of the common signal input by the inductive electrode can be further improved, the uniformity of the common voltage of each inductive electrode can be improved, and the display uniformity can be improved.
[0050] Specifically, as shown in FIG. 7, the third switch transistor 173 includes a seventh transistor T37, an eighth transistor T38, a ninth transistor T39, and a tenth transistor T40, the gate of the seventh transistor T37, the gate of the eighth transistor T38, the gate of the ninth transistor T39, and the gate of the tenth transistor T40 are connected with the switch signal line, the first electrode of the seventh transistor T37, the first electrode of the eighth transistor T38, the first electrode of the ninth transistor T39, and the first electrode of the tenth transistor T40 are respectively connected with the first sensing electrode Sensor 11, the second sensing electrode Sensor 12, the third sensing electrode Sensor 21, and the fourth sensing electrode Sensor 22, and the second electrode of the seventh transistor T37, the second electrode of the eighth transistor T38, the second electrode of the ninth transistor T39, and the second electrode of the tenth transistor T40 are connected with the common signal line.
[0051] In order to solve the problem that static electricity on the touch signal line and the touch electrode causes touch and display abnormalities. In some embodiments, as shown in FIG. 8, the display panel 1 further includes an anti-static module 18, the anti-static module 18 includes a first anti-static transistor 191, a second anti-static transistor 192, a high potential signal line VGH, and a low potential signal line VGL, each of the sensing electrodes 11 is connected with at least one first anti-static transistor 191 and at least one second anti-static transistor 192, the gate of the first anti-static transistor 191 and the first electrode of the first anti-static transistor 191 are connected with the sensing electrode 11, the second electrode of the first anti-static transistor 191 is connected with the high potential signal line VGH, the gate of the second anti-static transistor 192 and the second electrode of the second anti-static transistor 192 are connected with the low potential signal line VGL, and the first electrode of the second anti-static transistor 192 is connected with the sensing electrode 11.
[0052] Specifically, by setting the anti-static module, the anti-static module includes a first anti-static transistor, a second anti-static transistor, a high potential signal line, and a low potential signal line, the gate of the first anti-static transistor and the first electrode of the first anti-static transistor are connected with the sensing electrode, the gate of the first anti-static transistor is connected with the high potential signal line, so that when static electricity with a potential higher than the voltage on the high potential signal line occurs, the static electricity can be led out to the high potential signal line, preventing the static electricity from affecting the signal or damaging the display panel; the gate of the second anti-static transistor and the second electrode of the second anti-static transistor are connected with the low potential signal line, and the first electrode of the second anti-static transistor is connected with the sensing electrode, so that when static electricity with a potential lower than the voltage on the low potential signal line occurs, the second anti-static transistor is turned on to lead the static electricity out to the low potential signal line, preventing the static electricity from affecting the signal or damaging the display panel.
[0053] Specifically, when the potential on the sensing electrode is lower than the potential on the low potential signal line, the second anti-static transistor is turned on to release the static electricity. When the potential on the sensing electrode is higher than the potential on the high potential signal line, the first anti-static transistor is turned on.
[0054] Specifically, the high potential signal line outputs a high potential signal, and the low potential signal line outputs a low potential signal.
[0055] In some embodiments, as shown in FIG. 8, the anti-static module 18 includes a first anti-static module 181 and a second anti-static module 182. The first anti-static module 181 is arranged between the sensing electrode 11 and the voltage stabilizing transistor 15, and the second anti-static module 182 is arranged on the side of the sensing electrode 11 away from the sensing signal line 12. By arranging the first anti-static module and the second anti-static module, static electricity can be discharged when it occurs, further improving the anti-static capability of the display panel.
[0056] Specifically, as shown in FIG. 8, the first anti-static transistor 191 includes a first high anti-static transistor T41, a second high anti-static transistor T42, a third high anti-static transistor T43, a fourth high anti-static transistor T44, a fifth high anti-static transistor T45, a sixth high anti-static transistor T46, a seventh high anti-static transistor T47, and an eighth high anti-static transistor T48. The gate of the first high anti-static transistor T41, the gate of the second high anti-static transistor T42, the gate of the third high anti-static transistor T43, and the gate of the fourth high anti-static transistor T44 are connected to the first sensing electrode Sensor 11, the second sensing electrode Sensor 12, the third sensing electrode Sensor 21, and the fourth sensing electrode Sensor 22, respectively. The first electrode of the first high anti-static transistor T41, the first electrode of the second high anti-static transistor T42, the first electrode of the third high anti-static transistor T43, and the first electrode of the fourth high anti-static transistor T44 are connected to the first sensing electrode Sensor 11, the second sensing electrode Sensor 12, the third sensing electrode Sensor 21, and the fourth sensing electrode Sensor 22, respectively. The second electrode of the first high anti-static transistor T41, the second electrode of the second high anti-static transistor T42, the second electrode of the third high anti-static transistor T43, and the second electrode of the fourth high anti-static transistor T44 are connected to the high potential signal line VGH.
[0057] Specifically, as shown in FIG. 8, the gate of the fifth anti-static electricity transistor T45, the gate of the sixth anti-static electricity transistor T46, the gate of the seventh anti-static electricity transistor T47, and the gate of the eighth anti-static electricity transistor T48 are connected with the first sensing electrode Sensor 11, the second sensing electrode Sensor 12, the third sensing electrode Sensor 21, and the fourth sensing electrode Sensor 22 respectively, the first electrode of the fifth anti-static electricity transistor T45, the first electrode of the sixth anti-static electricity transistor T46, the first electrode of the seventh anti-static electricity transistor T47, and the first electrode of the eighth anti-static electricity transistor T48 are connected with the first sensing electrode Sensor 11, the second sensing electrode Sensor 12, the third sensing electrode Sensor 21, and the fourth sensing electrode Sensor 22 respectively, and the second electrode of the fifth anti-static electricity transistor T45, the second electrode of the sixth anti-static electricity transistor T46, the second electrode of the seventh anti-static electricity transistor T47, and the second electrode of the eighth anti-static electricity transistor T48 are connected with the high potential signal line VGH.
[0058] Specifically, as shown in FIG. 8, the second anti-static electricity transistor 192 includes the first anti-low static electricity transistor T51, the second anti-low static electricity transistor T52, the third anti-low static electricity transistor T53, the fourth anti-low static electricity transistor T54, the fifth anti-low static electricity transistor T55, the sixth anti-low static electricity transistor T56, the seventh anti-low static electricity transistor T57, and the eighth anti-low static electricity transistor T58, the gate of the first anti-low static electricity transistor T51, the gate of the second anti-low static electricity transistor T52, the gate of the third anti-low static electricity transistor T53, and the gate of the fourth anti-low static electricity transistor T54 are connected with the low potential signal line VGL, the second electrode of the first anti-low static electricity transistor T51, the second electrode of the second anti-low static electricity transistor T52, the second electrode of the third anti-low static electricity transistor T53, and the second electrode of the fourth anti-low static electricity transistor T54 are connected with the low potential signal line VGL, and the first electrode of the first anti-low static electricity transistor T51, the first electrode of the second anti-low static electricity transistor T52, the first electrode of the third anti-low static electricity transistor T53, and the first electrode of the fourth anti-low static electricity transistor T54 are connected with the first sensing electrode Sensor 11, the second sensing electrode Sensor 12, the third sensing electrode Sensor 21, and the fourth sensing electrode Sensor 22 respectively.
[0059] Specifically, as shown in FIG. 8, the gate of the fifth low-static electricity prevention transistor T55, the gate of the sixth low-static electricity prevention transistor T56, the gate of the seventh low-static electricity prevention transistor T57, and the gate of the eighth low-static electricity prevention transistor T58 are connected with the low potential signal line VGL, the second electrode of the fifth low-static electricity prevention transistor T55, the second electrode of the sixth low-static electricity prevention transistor T56, the second electrode of the seventh low-static electricity prevention transistor T57, and the second electrode of the eighth low-static electricity prevention transistor T58 are connected with the low potential signal line VGL, and the first electrode of the fifth low-static electricity prevention transistor T55, the first electrode of the sixth low-static electricity prevention transistor T56, the first electrode of the seventh low-static electricity prevention transistor T57, and the first electrode of the eighth low-static electricity prevention transistor T58 are respectively connected with the first sensing electrode Sensor 11, the second sensing electrode Sensor 12, the third sensing electrode Sensor 21, and the fourth sensing electrode Sensor 22.
[0060] In some embodiments, as shown in FIG. 3 and FIG. 9, the plurality of sensing electrodes 11 in the same row are electrically connected with different sensing signal lines 12, the plurality of sensing electrodes 11 in the same column are electrically connected with the same sensing signal line 12, and the number of the sensing electrodes 11 electrically connected with the same sensing signal line 12 is the same as the number of the voltage stabilizing transistors 15 electrically connected with the same sensing signal line 12.
[0061] Specifically, as shown in FIG. 3, each sensing signal line is electrically connected with two adjacent sensing electrodes in the same column, and each sensing signal line is electrically connected with two control transistors and two voltage stabilizing transistors.
[0062] Specifically, as shown in FIG. 9, each sensing signal line is electrically connected with N adjacent sensing electrodes in the same column, and the Nth sensing electrode Sensor 1N in the first column and the Nth sensing electrode Sensor 2N in the second column are electrically connected with different sensing signal lines. Correspondingly, the fifth control transistor T61, the sixth control transistor T62, the fifth voltage stabilizing transistor T63, the sixth voltage stabilizing transistor T64, the Nth control signal line TP-MUXN, and the Nth voltage stabilizing control line TP-MUX-MSCN are arranged, and each sensing electrode, sensing signal line, transistor, control signal line, and voltage stabilizing control line are correspondingly connected, wherein N is a positive integer and N is greater than or equal to 3.
[0063] Specifically, only part of the sensing electrodes and sensing signal lines are shown in the embodiments of the present application, and the design of other sensing electrodes and sensing signal lines and the elements connected therewith can be referred to the design of the sensing electrodes and sensing signal lines and the elements connected therewith described above.
[0064] In some embodiments, as shown in FIG. 4 and FIG. 10, the voltage-stabilized driving line LFD is configured to output a low potential signal; or the voltage-stabilized driving line LFD is configured to output a pulse signal, and the voltage-stabilized driving line LFD outputs the pulse signal in the same time period as the inductive electrode 11 receives the inductive signal. By making the voltage-stabilized driving line output a stable low potential signal or a stable pulse signal, the inactive inductive electrode can input a stable signal, avoid being affected by other signals or affecting other signals, prevent false touch, prevent display defects, and improve touch stability.
[0065] Specifically, when the voltage-stabilized driving line LFD outputs a low potential signal or a pulse signal, the signal on the corresponding inductive electrode can not be received, preventing false touch, for example, when the voltage-stabilized driving line LFD outputs a pulse signal to the second inductive electrode Sensor 12 and the fourth inductive electrode Sensor 22, the signal of the second inductive electrode Sensor 12 and the fourth inductive electrode Sensor 22 can not be received, avoiding false touch.
[0066] Specifically, FIG. 4 takes the amplitude of the pulse signal on the voltage-stabilized driving line being lower than the amplitude of the pulse signal on the inductive signal line as an example for illustration, but the embodiments of the present application are not limited thereto, and the amplitude of the pulse signal on the voltage-stabilized driving line can be greater than or equal to the amplitude of the pulse signal on the inductive signal line.
[0067] Specifically, the first electrode is a source electrode, and the second electrode is a drain electrode; or the first electrode is a drain electrode, and the second electrode is a source electrode.
[0068] Specifically, the touch mode in the display panel can be mutual capacitance touch.
[0069] Specifically, in the embodiments of the present application, electrical connection means that two signal lines can be indirectly connected or directly connected.
[0070] Specifically, in the embodiments of the present application, signal lines with the same reference numerals have the same signals transmitted thereon, for example, two high potential signal lines VGH are shown in FIG. 8, and the signals on the two high potential signal lines VGH can be the same. Signal lines with the same reference numerals can be connected to the same channel of the driving chip, for example, the two high potential signal lines VGH can be connected and then bound to the driving chip through a binding terminal, reducing the number of occupied channels. Similarly, signal lines with the same reference numerals can use the above design.
[0071] Specifically, it can be understood that the embodiments of the present application take the inductive signal line extending only to the corresponding inductive electrode as an example for illustration, but the embodiments of the present application are not limited thereto, for example, the lengths of the inductive signal lines can be equal, or invalid traces are provided, so that the number and setting density of the traces corresponding to each inductive electrode are equal.
[0072] Specifically, the sensing electrodes in the embodiments of the present application can be arranged in the display area, the signal lines can be arranged in the non-display area, or the signal lines can be arranged in the non-display area and extend to the display area, and the transistors can be arranged in the display area or in the non-display area.
[0073] Specifically, for example, the control transistor, the voltage stabilizing transistor, the switch transistor, the first anti-static transistor and the second anti-static transistor can be arranged in the non-display area, the control signal line, the voltage stabilizing driving line, the voltage stabilizing control line, the common signal line and the switch signal line can be arranged in the non-display area, the sensing signal line can be arranged in the non-display area and extend to the display area, and the high potential signal line and the low potential signal line can be arranged in the non-display area.
[0074] Specifically, the transistors and the signal lines arranged on the side of the sensing electrode away from the sensing signal line can be arranged in the non-display area on the upper side of the display panel, and the transistors and the signal lines arranged between the sensing electrode and the sensing signal line can be arranged in the non-display area on the lower side of the display panel and the non-display areas on the two sides.
[0075] Specifically, it can be understood that the embodiments of the present application have made a detailed description of the display panel from the design of each electrode, each transistor, each wire and the connection relationship thereof, and it can be understood that the embodiments can be combined when there is no conflict among the embodiments, for example, the display panel further comprises a switch signal line, a common signal line and a switch transistor, the gate of the switch transistor is connected with the switch signal line, the first electrode of the switch transistor is electrically connected with the sensing electrode, and the second electrode of the switch transistor is connected with the common signal line, when the display panel is configured to be in a display stage, the switch signal line inputs an effective level, and the display panel further comprises an anti-static module, the anti-static module comprises a first anti-static transistor, a second anti-static transistor, a high potential signal line and a low potential signal line, each sensing electrode is connected with at least one first anti-static transistor and at least one second anti-static transistor, the gate of the first anti-static transistor and the first electrode of the first anti-static transistor are connected with the sensing electrode, the second electrode of the first anti-static transistor is connected with the high potential signal line, the gate of the second anti-static transistor and the second electrode of the second anti-static transistor are connected with the low potential signal line, and the first electrode of the second anti-static transistor is connected with the sensing electrode.
[0076] Meanwhile, the embodiments of the present application provide a display device, which comprises the display panel as described in any one of the above embodiments.
[0077] Specifically, as shown in FIG. 11, the display device 2 includes the display panel 1 and a driving chip 21, the display panel 1 is connected with the driving chip 21.
[0078] Specifically, the display device can further include a frame body, and the display device can be a mobile phone, a notebook computer, or a vehicle display screen, which are not limited in the embodiments of the present application.
[0079] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.
[0080] The display panel and the display device provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples in this paper, and the above description of the embodiments is only used to help understand the technical solutions and the core ideas of the present application; the ordinary skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A display panel comprising a plurality of sensing electrodes arranged in an array and a plurality of sensing signal lines, each of the sensing signal lines being electrically connected to at least two of the sensing electrodes, a control transistor and a voltage stabilizing transistor being provided between each of the sensing electrodes and a corresponding one of the sensing signal lines, a gate of the control transistor being connected to a control signal line, a first electrode of the control transistor being connected to the sensing electrode, a second electrode of the control transistor being connected to the sensing signal line, a gate of the voltage stabilizing transistor being connected to a voltage stabilizing control line, a first electrode of the voltage stabilizing transistor being connected to the sensing electrode, and a second electrode of the voltage stabilizing transistor being connected to a voltage stabilizing drive line; gates of the control transistors connected to a plurality of the sensing electrodes in a same row are connected to a same control signal line, gates of the control transistors connected to a plurality of the sensing electrodes in different rows are connected to different control signal lines, and second electrodes of the control transistors connected to a plurality of the sensing electrodes in a same row are connected to different sensing signal lines; gates of the voltage stabilizing transistors connected to a plurality of the sensing electrodes in a same row are connected to a same voltage stabilizing control line, gates of the voltage stabilizing transistors connected to a plurality of the sensing electrodes in different rows are connected to different voltage stabilizing control lines, and second electrodes of the voltage stabilizing transistors are all connected to the voltage stabilizing drive line; the sensing electrodes are configured to input a common signal in a display phase, the sensing electrodes are configured to input a sensing signal in a touch phase, when the display panel is configured to the touch phase, a control signal line inputs an effective level, other control signal lines input an ineffective level, a voltage stabilizing control line inputs the ineffective level, other voltage stabilizing control lines input the effective level, and the sensing electrodes connected to the control transistors connected to the control signal line inputting the effective level are the same as the sensing electrodes connected to the voltage stabilizing transistors connected to the voltage stabilizing control line inputting the ineffective level, and the voltage stabilizing drive line is configured to output a voltage stabilizing signal. wherein The display panel further comprises a switch signal line, a common signal line and a switch transistor, a gate of the switch transistor being connected to the switch signal line, a first electrode of the switch transistor being electrically connected to the sensing electrode, and a second electrode of the switch transistor being connected to the common signal line, when the display panel is configured to the display phase, the switch signal line inputs the effective level. The switch transistor is provided between the sensing electrode and the voltage stabilizing transistor. Alternatively, the switch transistor is provided between the sensing signal line and the control transistor.
2. The display panel of claim 1, wherein, Alternatively, the switch transistor is provided on a side of the sensing electrode away from the sensing signal line.
3. The display panel of claim 2, wherein, The switch transistor comprises a first switch transistor and a second switch transistor, one of the first switch transistors being provided between each of the sensing electrodes and a corresponding one of the sensing signal lines, and one of the second switch transistors being provided between each of the sensing signal lines and a corresponding plurality of the sensing electrodes. 4. The display panel of claim 2, wherein, The first switch transistor is arranged between the sensing electrode and the voltage stabilizing transistor, and the second switch transistor is arranged between the control transistor and the sensing signal line.
5. The display panel of claim 4, wherein, The switch transistor further comprises a third switch transistor arranged on the side of the sensing electrode away from the sensing signal line, and each sensing electrode is connected to the first electrode of the third switch transistor.
6. The display panel of any one of claims 1 to 5, wherein, The display panel further comprises an anti-static module, which comprises a first anti-static transistor, a second anti-static transistor, a high potential signal line and a low potential signal line, and each sensing electrode is connected to at least one first anti-static transistor and at least one second anti-static transistor. The gate of the first anti-static transistor and the first electrode of the first anti-static transistor are connected to the sensing electrode, the second electrode of the first anti-static transistor is connected to the high potential signal line, the gate of the second anti-static transistor and the second electrode of the second anti-static transistor are connected to the low potential signal line, and the first electrode of the second anti-static transistor is connected to the sensing electrode.
7. The display panel of claim 6, wherein, The anti-static module comprises a first anti-static module and a second anti-static module, the first anti-static module is arranged between the sensing electrode and the voltage stabilizing transistor, and the second anti-static module is arranged on the side of the sensing electrode away from the sensing signal line.
8. The display panel of any one of claims 1 to 5, wherein, The sensing electrodes in the same row are connected to different sensing signal lines, the sensing electrodes in the same column are connected to the same sensing signal line, and the number of sensing electrodes connected to the same sensing signal line is the same as the number of voltage stabilizing transistors connected to the same sensing signal line.
9. The display panel of any one of claims 1 to 5, wherein, The voltage stabilizing drive line is configured to output a low potential signal, or the voltage stabilizing drive line is configured to output a pulse signal, and the time period of the voltage stabilizing drive line outputting the pulse signal is the same as the time period of the sensing electrode receiving the sensing signal.
10. The display panel of claim 1, wherein, The first electrode is the source electrode, and the second electrode is the drain electrode, or the first electrode is the drain electrode, and the second electrode is the source electrode.
11. A display device comprising a display panel, the display panel comprising a plurality of sensing electrodes arranged in an array and a plurality of sensing signal lines, each sensing signal line being connected to at least two sensing electrodes, and a control transistor and a voltage stabilizing transistor being arranged between each sensing electrode and the corresponding sensing signal line, the gate of the control transistor being connected to a control signal line, the first electrode of the control transistor being connected to the sensing electrode, the second electrode of the control transistor being connected to the sensing signal line, the gate of the voltage stabilizing transistor being connected to a voltage stabilizing control line, the first electrode of the voltage stabilizing transistor being connected to the sensing electrode, and the second electrode of the voltage stabilizing transistor being connected to a voltage stabilizing drive line. wherein The gate of the control transistor connected with the sensing electrode in the same row is connected with the same control signal line, the gate of the control transistor connected with the sensing electrode in different rows is connected with different control signal lines, and the second electrode of the control transistor connected with the sensing electrode in the same row is connected with different sensing signal lines. The gate of the voltage stabilizing transistor connected with the sensing electrode in the same row is connected with the same voltage stabilizing control line, the gate of the voltage stabilizing transistor connected with the sensing electrode in different rows is connected with different voltage stabilizing control lines, and the second electrode of each voltage stabilizing transistor is connected with the voltage stabilizing driving line. The sensing electrode is configured to input a common signal in a display stage, and is configured to input a sensing signal in a touch stage. When the display panel is configured to the touch stage, a control signal line inputs an effective level, other control signal lines input an ineffective level, a voltage stabilizing control line inputs an ineffective level, other voltage stabilizing control lines input an effective level, the sensing electrode connected with the control transistor connected with the control signal line inputting the effective level is the same as the sensing electrode connected with the voltage stabilizing transistor connected with the voltage stabilizing control line inputting the ineffective level, and the voltage stabilizing driving line is configured to output a voltage stabilizing signal.
12. The display device of claim 11, wherein, The display panel further comprises a switch signal line, a common signal line and a switch transistor, the gate of the switch transistor is connected with the switch signal line, the first electrode of the switch transistor is electrically connected with the sensing electrode, and the second electrode of the switch transistor is connected with the common signal line. When the display panel is configured to the display stage, the switch signal line inputs an effective level.
13. The display device of claim 12, wherein, The switch transistor is arranged between the sensing electrode and the voltage stabilizing transistor. Alternatively, the switch transistor is arranged between the sensing signal line and the control transistor. Alternatively, the switch transistor is arranged on the side of the sensing electrode away from the sensing signal line.
14. The display device of claim 12, wherein, The switch transistor comprises a first switch transistor and a second switch transistor, each sensing electrode is provided with a first switch transistor between the sensing electrode and the corresponding sensing signal line, and each sensing signal line is provided with a second switch transistor between the sensing signal line and the corresponding sensing electrode. The first switch transistor is arranged between the sensing electrode and the voltage stabilizing transistor, and the second switch transistor is arranged between the control transistor and the sensing signal line.
15. The display device of claim 14, wherein, The switch transistor further comprises a third switch transistor, and the third switch transistor is arranged on the side of the sensing electrode away from the sensing signal line, and each sensing electrode is connected with the first electrode of the third switch transistor.
16. A display device as claimed in any one of claims 11 to 15, wherein, The display panel further comprises an anti-static module, and the anti-static module comprises a first anti-static transistor, a second anti-static transistor, a high potential signal line and a low potential signal line. Each sensing electrode is connected with at least one first anti-static transistor and at least one second anti-static transistor. The gate of the first anti-static transistor and the first electrode of the first anti-static transistor are connected with the sensing electrode, the second electrode of the first anti-static transistor is connected with a high potential signal line, the gate of the second anti-static transistor and the second electrode of the second anti-static transistor are connected with the low potential signal line, and the first electrode of the second anti-static transistor is connected with the sensing electrode.
17. The display device of claim 16, wherein, The anti-static module comprises a first anti-static module and a second anti-static module, the first anti-static module is arranged between the sensing electrode and the voltage stabilizing transistor, and the second anti-static module is arranged on the side of the sensing electrode away from the sensing signal line.
18. A display device as claimed in any one of claims 11 to 15, wherein, The sensing electrodes in the same row are electrically connected with different sensing signal lines, the sensing electrodes in the same column are electrically connected with the same sensing signal line, and the number of the sensing electrodes electrically connected with the same sensing signal line is the same as the number of the voltage stabilizing transistors electrically connected with the same sensing signal line.
19. A display device as claimed in any one of claims 11 to 15, wherein, The voltage stabilizing driving line is configured to output a low potential signal, or the voltage stabilizing driving line is configured to output a pulse signal, and the time period of the voltage stabilizing driving line outputting the pulse signal is the same as the time period of the sensing electrode receiving a sensing signal.
20. The display device of claim 11, wherein, The first electrode is a source electrode, and the second electrode is a drain electrode, or the first electrode is a drain electrode, and the second electrode is a source electrode.
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