Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device. According to the display panel, voltage stabilizing transistors are arranged, each voltage stabilizing transistor is connected with one induction electrode, the grid electrode of each voltage stabilizing transistor is connected with a voltage stabilizing control line, the first electrode of each voltage stabilizing transistor is connected with the corresponding induction electrode, and the second electrode of each voltage stabilizing transistor is connected with a voltage stabilizing driving line; one control signal line inputs an effective level, the other control signal lines input an ineffective level, one voltage stabilization control signal line inputs an ineffective level, the other voltage stabilization control signal lines input an effective level, and the voltage stabilization driving line is configured to output a voltage stabilization signal. A voltage stabilizing signal can be input into the induction electrode, so that the signal on the induction electrode is stable, the induction electrode is prevented from being impacted by other signals or influencing other signals when being suspended, mistaken touch and poor display are prevented, and the touch stability is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] In order to realize the touch function, the existing display device will integrate the display driver and the touch driver together on the display panel, and in order to reduce the cost and reduce the thickness of the display device, the common electrode block in the common electrode layer will be reused as the sensing electrode. As the display device develops towards large size, narrow frame, and high screen ratio, in order to keep the touch accuracy unchanged, more touch lines need to be added, and each touch line requires a channel output signal on the corresponding driver chip, and the number of channels of a drive signal is limited, so more driver chips need to be added accordingly, resulting in high cost and a larger frame of the display device. In order to solve the above problems, the existing display device will use a sensing signal line to control two sensing electrodes in the surface, thereby reducing the touch lines without sacrificing touch accuracy. However, the above solution will have the following problems: when one of the sensing electrodes does not input a signal, the sensing electrode is in a passive state, and there is no DC or AC voltage for signal transmission. The sensing electrode is easily affected by other signals and false touches occur. The sensing electrode will also affect other signals and cause poor display.

[0003] Therefore, the existing display panel using time-sharing driving sensing electrodes has a technical problem of poor touch stability. Summary of the invention

[0004] Embodiments of the present application provide a display panel and a display device, which are used to solve the technical problem that the existing display panel using time-sharing driving sensing electrodes has poor touch stability.

[0005] The embodiment of the present application provides a display panel, which includes a plurality of sensing electrodes and a plurality of sensing signal lines arranged in an array, 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 arranged between each of the sensing electrodes and the corresponding sensing signal line, a gate of the control transistor being connected to the 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 the voltage stabilizing driving line;

[0006] The gates of the control transistors connected to the sensing electrodes in the same row are connected to the same control signal line, the gates 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; the gates of the voltage-stabilizing transistors connected to the sensing electrodes in the same row are connected to the same voltage-stabilizing control line, the gates of the voltage-stabilizing transistors connected to the sensing electrodes in different rows are connected to different voltage-stabilizing control lines, and the second electrodes of the voltage-stabilizing transistors are all connected to the voltage-stabilizing driving line;

[0007] The sensing electrodes are configured to input common signals in the display stage, and the sensing electrodes are configured to input sensing signals in the touch stage. When the display panel is configured in the touch stage, one of the control signal lines inputs a valid level, and the other control signal lines input an invalid level. One of the voltage stabilization control lines inputs an invalid level, and the other voltage stabilization control lines input a valid level. The sensing electrode connected to the control transistor connected to the control signal line inputting the valid level is the same as the sensing electrode connected to the voltage stabilization transistor connected to the voltage stabilization control line inputting the invalid level. The voltage stabilization drive line is configured to output a stabilization signal.

[0008] At the same time, an embodiment of the present application provides a display device, which includes a display panel as described in any of the above embodiments.

[0009] Beneficial effect: The embodiment of the present application provides a display panel and a display device; the display panel is provided with a voltage-stabilizing transistor, so that each voltage-stabilizing transistor is connected to a sensing electrode, the gate of the voltage-stabilizing transistor is connected to the voltage-stabilizing control line, the first electrode of the voltage-stabilizing transistor is connected to the sensing electrode, and the second electrode of the voltage-stabilizing transistor is connected to the voltage-stabilizing drive line. When the display panel is configured in the touch stage, a control signal line inputs a valid level, and other control signal lines input invalid levels, a voltage-stabilizing control signal line inputs an invalid level, and other voltage-stabilizing control signal lines input valid levels, and the voltage-stabilizing drive line is configured to output a voltage-stabilizing signal, so that 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 suspended and affected by other signals or affecting other signals, false touches are prevented, poor display is prevented, and touch stability is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0011] Figure 1 A schematic diagram of a comparative display device provided in an embodiment of the present application.

[0012] Figure 2 A timing diagram of a comparative display device provided in an embodiment of the present application.

[0013] Figure 3 A first schematic diagram of a display panel provided in an embodiment of the present application.

[0014] Figure 4 The display panel provided in the embodiment of the present application is configured as the first timing diagram of the touch stage.

[0015] Figure 5 A second schematic diagram of a display panel provided in an embodiment of the present application.

[0016] Figure 6 A third schematic diagram of a display panel provided in an embodiment of the present application.

[0017] Figure 7 A fourth schematic diagram of a display panel provided in an embodiment of the present application.

[0018] Figure 8 A fifth schematic diagram of a display panel provided in an embodiment of the present application.

[0019] Fig. 9 A sixth schematic diagram of a display panel provided in an embodiment of the present application.

[0020] Fig.10 The display panel provided in the embodiment of the present application is configured as the second timing diagram of the touch stage.

[0021] Fig.11 A schematic diagram of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0027] Figure 1 A schematic diagram of a comparative display device provided in an embodiment of the present application. Figure 2 A timing diagram of a comparative display device provided in an embodiment of the present application.

[0028] In order to illustrate the principle of the technical problem of the embodiment of the present application, a comparative display device is provided. It is understandable that the comparative display device cannot be regarded as the prior art in the field. Figure 1 , Figure 2 As shown, 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 Figure 1 The first electrode block Sensor011 and the second electrode block Sensor012 are connected to the first sensing line RX01, 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 operation 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 set to control each transistor, so as to realize the independent operation of each electrode block. Figure 1 , Figure 2It can be seen that 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 will be turned on, and the corresponding first sensing line RX01 and the second sensing line RX02 will 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 will be turned on, and the corresponding first sensing line RX01 and the second sensing line RX02 will output signals to the second electrode block Sensor012 and the fourth electrode block Sensor022 respectively, so that one sensing line controls two electrode blocks. But from Figure 2 As can be seen from 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 will 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 will be easily affected by other electrode blocks, resulting in false touches, poor display, and poor stability of the electrode block, affecting touch and display stability. Figure 2 As shown, it is shown that when the first electrode block Sensor011, the second electrode block Sensor012, the third electrode block Sensor021 and the fourth electrode block Sensor022 are disturbed, certain signals will be generated. Figure 2 The signal shown in FIG. 1 is regular, but in reality the signal may be irregular and fluctuate greatly, resulting in abnormal touch and display. Therefore, the existing display panel using time-sharing driving sensing electrodes has a technical problem of poor touch stability.

[0029] In view of the above problems, the embodiments of the present application provide a display panel and a display device to solve the above technical problems.

[0030] Figure 3 A first schematic diagram of a display panel provided in an embodiment of the present application. Figure 4 The display panel provided in the embodiment of the present application is configured as the first timing diagram of the touch stage. Figure 5 A second schematic diagram of a display panel provided in an embodiment of the present application. Figure 6 A third schematic diagram of a display panel provided in an embodiment of the present application. Figure 7 A fourth schematic diagram of a display panel provided in an embodiment of the present application. Figure 8 A fifth schematic diagram of a display panel provided in an embodiment of the present application. Fig. 9 A sixth schematic diagram of a display panel provided in an embodiment of the present application. Fig.10The display panel provided in the embodiment of the present application is configured as the second timing diagram of the touch stage.

[0031] like Figure 3 , Figure 4 As shown, an embodiment of the present application provides a display panel, the display panel 1 comprises 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 the 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 the voltage stabilizing control line 16, the first electrode of the voltage stabilizing transistor 15 is connected to the sensing electrode 11, and the second electrode of the voltage stabilizing transistor 15 is connected to the voltage stabilizing driving line LFD;

[0032] 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, and 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, and the second electrodes of the voltage-stabilizing transistors 15 are all connected to the voltage-stabilizing driving line LFD;

[0033] The sensing electrode 11 is configured to input a common signal in the display stage, and the sensing electrode 11 is configured to input a sensing signal in the touch stage. When the display panel 1 is configured in the touch stage, one of the control signal lines 14 inputs a valid level, and the other control signal lines 14 input an invalid level. One of the voltage stabilization control lines 16 inputs an invalid level, and the other voltage stabilization control lines 16 input a valid level. The sensing electrode 11 connected to the control transistor 13 connected to the control signal line 14 inputting the valid level is the same as the sensing electrode 11 connected to the voltage stabilization transistor 15 connected to the voltage stabilization control line 16 inputting the invalid level. The voltage stabilization drive line LFD is configured to output a stabilization signal.

[0034] The embodiment of the present application provides a display panel, which is provided with a voltage-stabilizing transistor, so that each voltage-stabilizing transistor is connected to a sensing electrode, the gate of the voltage-stabilizing transistor is connected to a voltage-stabilizing control line, the first electrode of the voltage-stabilizing transistor is connected to the sensing electrode, and the second electrode of the voltage-stabilizing transistor is connected to the voltage-stabilizing driving line. When the display panel is configured in a touch control stage, a control signal line inputs a valid level, and other control signal lines input invalid levels, a voltage-stabilizing control signal line inputs an invalid level, and other voltage-stabilizing control signal lines input valid levels, and the voltage-stabilizing driving line is configured to output a voltage-stabilizing signal, so that 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 suspended and affected by other signals or affecting other signals, false touches are prevented, poor display is prevented, and touch stability is improved.

[0035] Specifically, it can be understood that in the embodiment of the present application, the sensing electrodes are reused as common electrodes, that is, the common electrode layer in the display panel can be used to form a plurality of electrodes arranged at intervals, and the electrodes are reused as sensing electrodes and common electrodes. In the touch stage, the sensing electrodes transmit sensing signals to realize the touch function, and in the display stage, the sensing electrodes transmit common signals to realize the display function.

[0036] Specifically, the effective level refers to an electrical signal that can turn on the transistor, and the invalid level refers to an electrical signal that turns off the transistor. When a high-potential signal is input to the gate of the transistor, the transistor is turned on, and 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 the effective level refers to the low-potential signal. The embodiment of the present application takes the example of turning on the transistor when a high-potential signal is input to the gate of the transistor. It can be understood that the type of transistor can be changed so that the transistor is turned on when a low-potential signal is input to the gate of the transistor.

[0037] Specifically, each sensing signal line in the embodiment of the present application is electrically connected to at least two sensing electrodes, and a transistor is arranged between the sensing signal line and the sensing electrode. By controlling the on or off of the transistor control circuit, multiple sensing electrodes electrically connected to the same sensing signal line are driven in a time-sharing manner, and each sensing electrode can work independently, thereby improving touch accuracy.

[0038] like Figure 3As shown in FIG. 1 , taking a case where a sensing signal line connects two adjacent sensing electrodes in two adjacent columns of sensing electrodes as an example, it can be seen that the sensing signal line 12 includes a first sensing signal line RX1 and a second sensing signal line RX2, and 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, respectively. The sensing electrode of the first row and the second column, the sensing electrode of the second row and the second column, 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.

[0039] like Figure 3 As shown, it can be seen that a control transistor 13 and a voltage-stabilizing transistor 15 are provided between each sensing electrode 11 and the corresponding sensing signal line 12. For example, a first control transistor T11 and a first voltage-stabilizing transistor T21 are provided between the first sensing electrode Sensor11 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 both 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 both 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 respectively connected to the first sensing electrode Sensor11, the second sensing electrode Sensor12, the third sensing electrode Sensor21 and the fourth sensing electrode Sensor22, 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, and 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.

[0040] like Figure 3As shown, 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 gates of the second voltage stabilizing transistor T22 and 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 respectively connected to the first sensing electrode Sensor11, the second sensing electrode Sensor12, the third sensing electrode Sensor21 and the fourth sensing electrode Sensor22, and 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 drive line LFD.

[0041] like Figure 4 As shown in FIG. 1 , it can be seen that when the display panel is configured in the touch stage, Figure 31 and 2. As an example, in the 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, and the second voltage stabilization control line TP-MUX-MSC2 inputs a valid level. 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 sensing signals, and the second sensing electrode Sensor12 and the fourth sensing electrode Sensor22 input stabilization signals, so that when the first sensing electrode Sensor11 and the third sensing electrode Sensor21 realize touch control, the second sensing electrode Sensor12 and the fourth sensing electrode Sensor22 input stabilization signals; in the second time period t2, the first control signal line TP-MUX1 inputs an invalid level, the second control signal line TP-MUX-MSC1 inputs an invalid level, and the second voltage stabilization control line TP-MUX-MSC2 inputs a valid level. 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 sensing signals, and the second sensing electrode Sensor12 and the fourth sensing electrode Sensor22 input stabilization signals. The first sensing signal line TP-MUX2 inputs a valid level, the first voltage stabilization control line TP-MUX-MSC1 inputs a valid level, and the second voltage stabilization control line TP-MUX-MSC2 inputs an invalid level. 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 voltage stabilization signals, and the second sensing electrode Sensor12 and the fourth sensing electrode Sensor22 input sensing signals, so that when the second sensing electrode Sensor12 and the fourth sensing electrode Sensor22 realize touch control, the first sensing electrode Sensor11 and the third sensing electrode Sensor21 input voltage stabilization signals, so as to avoid the sensing electrode from being in a state of potential suspension, resulting in coupling between the sensing electrode and other electrodes or signal lines, so as to avoid the sensing electrode being affected by other signals, and also avoid the sensing electrode affecting other signals, thereby improving touch stability and display stability.

[0042] Taking the comparative display device provided in the embodiment of the present application as an example, in the display stage, the first touch control line TP01 and the second touch control line TP02 both output high potential signals, so that each transistor is turned on, and a common voltage is output to each electrode block through the sensing line to realize the display function. Figure 1 It can be seen that one sensing line needs to input signals to two electrode blocks, resulting in a heavy load on the sensing line and insufficient signal supply capacity. The signal transmitted from the sensing line to the electrode block cannot maintain a stable voltage, and the voltages of different electrode blocks may be uneven, resulting in uneven display and further display abnormality.

[0043] In view of the above problems, in some embodiments, Figure 5As shown, the display panel 1 further includes a switch signal line TPSW, a common signal line COM and a switch transistor 17, the gate of the switch transistor 17 is connected to the switch signal line TPSW, the first electrode of the switch transistor 17 is electrically connected to the sensing electrode 11, the second electrode of the switch transistor 17 is connected to the common signal line COM, and when the display panel 1 is configured in the display stage, the switch signal line TPSW inputs a valid 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 a valid level to turn on the switch transistor, and the common signal line can output a common signal to each sensing electrode, so that each sensing electrode can maintain a stable signal, the common voltage uniformity of each sensing electrode is improved, and the display panel can display normally.

[0044] Specifically, Figure 5 As shown, the switch transistor 17 includes a first transistor T31, a second transistor T32, a third transistor T33 and a fourth transistor T34, a gate of the first transistor T31, a gate of the second transistor T32, a gate of the third transistor T33 and a gate of the fourth transistor T34 are all connected to the switch signal line TPSW, a first electrode of the first transistor T31, a first electrode of the second transistor T32, a first electrode of the third transistor T33 and a first electrode of the fourth transistor T34 are respectively connected to the first sensing electrode Sensor11, the second sensing electrode Sensor12, the third sensing electrode Sensor21 and the fourth sensing electrode Sensor22, and a second electrode of the first transistor T31, a second electrode of the second transistor T32, a second electrode of the third transistor T33 and a second electrode of the fourth transistor T34 are connected to the common signal line.

[0045] Specifically, when the display panel is in the touch stage, the switch signal line inputs an invalid level to turn off the switch transistor. The common signal line can continuously output a common signal, or input a common signal only when the display panel is in the display stage.

[0046] In some embodiments, the switch transistor 17 is disposed between the sensing electrode 11 and the voltage regulator transistor 15 ; or the switch transistor 17 is disposed between the sensing signal line 12 and the control transistor 13 ; or the switch transistor is disposed on a side of the sensing electrode 11 away from the sensing signal line 12 .

[0047] Specifically, when setting the switch transistor, the switch transistor can be set between the sensing electrode and the voltage regulating transistor, or between the sensing signal line and the control transistor, or on the side of the sensing electrode away from the sensing signal line.

[0048] In some embodiments, Figure 6 As shown, the switch transistor 17 includes a first switch transistor 171 and a second switch transistor 172, a first switch transistor 171 is provided between each of the sensing electrodes 11 and the corresponding sensing signal line 12, a second switch transistor 172 is provided between each of the sensing signal lines 12 and the corresponding plurality of sensing electrodes 11, the first switch transistor 171 is provided between the sensing electrode 11 and the voltage stabilizing transistor 15, and the second switch transistor 172 is provided between the control transistor 13 and the sensing signal line 12. By providing the first switch transistor between the sensing electrode and the voltage stabilizing transistor, and providing the second switch transistor between the sensing signal line and the control transistor, the uniformity of the common voltage on each sensing electrode during the display stage can be further improved, the display unevenness caused by the voltage unevenness can be eliminated, and the display effect can be improved.

[0049] Specifically, Figure 6 As shown, the first switch transistor 171 may include a first transistor T31, a second transistor T32, a third transistor T33 and a fourth transistor T34, and the connection relationship thereof can be referred 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 to the switch signal line TPSW, the first electrode of the fifth transistor T35 is connected to 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 to 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 to the common signal line COM.

[0050] In some embodiments, Figure 7 As shown, the switch transistor 17 further includes a third switch transistor 173, and the third switch transistor 173 is disposed on a side of the sensing electrode 11 away from the sensing signal line 12, and each of the sensing electrodes 11 is connected to a first electrode of the third switch transistor 173. By disposing the third switch transistor, the third switch transistor is disposed on a side of the sensing electrode away from the sensing signal line, so that the stability of the common signal input by the sensing electrode can be further improved, the uniformity of the common voltage of each sensing electrode can be improved, and the display uniformity can be improved.

[0051] Specifically, Figure 7As shown, 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 to 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 connected to the first sensing electrode Sensor11, the second sensing electrode Sensor12, the third sensing electrode Sensor21 and the fourth sensing electrode Sensor22 respectively, 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 to the common signal line.

[0052] To solve the problem that static electricity is easily generated on the touch signal line and the touch electrode, causing abnormal touch and display. Figure 8 As shown, the display panel 1 further includes an anti-static module 18, which 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 to at least one of the first anti-static transistors 191 and at least one of the second anti-static transistors 192. The gate of the first anti-static transistor 191 and the first electrode of the first anti-static transistor 191 are connected to the sensing electrode 11, the second electrode of the first anti-static transistor 191 is connected to 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 to the low potential signal line VGL, and the first electrode of the second anti-static transistor 192 is connected to the sensing electrode 11.

[0053] Specifically, by setting up an 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, and the gate of the first anti-static transistor and the first electrode of the first anti-static transistor are connected to the sensing electrode, and the gate of the first anti-static transistor is connected to the high-potential signal line. Then, when static electricity with a potential higher than the voltage on the high-potential signal line appears, the static electricity can be conducted to the high-potential signal line to prevent 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 to the low-potential signal line, and the first electrode of the second anti-static transistor is connected to the sensing electrode. Then, when static electricity with a potential lower than the voltage on the low-potential signal line appears, the second anti-static transistor can be turned on to conduct the static electricity to the low-potential signal line to prevent static electricity from affecting the signal or damaging the display panel.

[0054] Specifically, when the potential on the sensing electrode is lower than the potential on the low potential signal line, the second anti-static transistor will be turned on to release 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 will be turned on.

[0055] Specifically, the high potential signal line outputs a high potential signal, and the low potential signal line outputs a low potential signal.

[0056] In some embodiments, Figure 8 As shown, the anti-static module 18 includes a first anti-static module 181 and a second anti-static module 182, wherein the first anti-static module 181 is disposed between the sensing electrode 11 and the voltage stabilizing transistor 15, and the second anti-static module 182 is disposed on a side of the sensing electrode 11 away from the sensing signal line 12. By providing the first anti-static module and the second anti-static module, static electricity can be guided out when it occurs, thereby further improving the anti-static capability of the display panel.

[0057] Specifically, Figure 8 As shown, the first anti-static transistor 191 includes a first anti-high static transistor T41, a second anti-high static transistor T42, a third anti-high static transistor T43, a fourth anti-high static transistor T44, a fifth anti-high static transistor T45, a sixth anti-high static transistor T46, a seventh anti-high static transistor T47 and an eighth anti-high static transistor T48, and the gate of the first anti-high static transistor T41, the gate of the second anti-high static transistor T42, the gate of the third anti-high static transistor T43 and the gate of the fourth anti-high static transistor T44 are respectively connected to the first sensing electrode Sensor11, the second sensing electrode Sensor12, the third sensing electrode Sensor21 and the fourth sensing electrode Sensor22. The first electrode of the first high static electricity protection transistor T41, the first electrode of the second high static electricity protection transistor T42, the first electrode of the third high static electricity protection transistor T43 and the first electrode of the fourth high static electricity protection transistor T44 are respectively connected to the first sensing electrode Sensor11, the second sensing electrode Sensor12, the third sensing electrode Sensor21 and the fourth sensing electrode Sensor22, and the second electrode of the first high static electricity protection transistor T41, the second electrode of the second high static electricity protection transistor T42, the second electrode of the third high static electricity protection transistor T43 and the second electrode of the fourth high static electricity protection transistor T44 are connected to the high potential signal line VGH.

[0058] Specifically, Figure 8As shown, the gate of the fifth high static electricity protection transistor T45, the gate of the sixth high static electricity protection transistor T46, the gate of the seventh high static electricity protection transistor T47 and the gate of the eighth high static electricity protection transistor T48 are connected to the first sensing electrode Sensor11, the second sensing electrode Sensor12, the third sensing electrode Sensor21 and the fourth sensing electrode Sensor22 respectively, the first electrode of the fifth high static electricity protection transistor T45, the first electrode of the sixth high static electricity protection transistor T46, the first electrode of the seventh high static electricity protection transistor T47 and the first electrode of the eighth high static electricity protection transistor T48 are connected to the first sensing electrode Sensor11, the second sensing electrode Sensor12, the third sensing electrode Sensor21 and the fourth sensing electrode Sensor22 respectively, and the second electrode of the fifth high static electricity protection transistor T45, the second electrode of the sixth high static electricity protection transistor T46, the second electrode of the seventh high static electricity protection transistor T47 and the second electrode of the eighth high static electricity protection transistor T48 are connected to the high potential signal line VGH.

[0059] Specifically, Figure 8 As shown, the second anti-static transistor 192 includes a first anti-low static transistor T51, a second anti-low static transistor T52, a third anti-low static transistor T53, a fourth anti-low static transistor T54, a fifth anti-low static transistor T55, a sixth anti-low static transistor T56, a seventh anti-low static transistor T57 and an eighth anti-low static transistor T58, the gate of the first anti-low static transistor T51, the gate of the second anti-low static transistor T52, the gate of the third anti-low static transistor T53 and the gate of the fourth anti-low static transistor T54 are connected to the low potential signal line VGL, and the first anti-low static transistor T51 is connected to the low potential signal line VGL. The second electrode of the second low static electricity prevention transistor T52, the second electrode of the third low static electricity prevention transistor T53 and the second electrode of the fourth low static electricity prevention transistor T54 are connected to the low potential signal line VGL, and the first electrode of the first low static electricity prevention transistor T51, the first electrode of the second low static electricity prevention transistor T52, the first electrode of the third low static electricity prevention transistor T53 and the first electrode of the fourth low static electricity prevention transistor T54 are respectively connected to the first sensing electrode Sensor11, the second sensing electrode Sensor12, the third sensing electrode Sensor21 and the fourth sensing electrode Sensor22.

[0060] Specifically, Figure 8As shown, the gate of the fifth low static electricity protection transistor T55, the gate of the sixth low static electricity protection transistor T56, the gate of the seventh low static electricity protection transistor T57 and the gate of the eighth low static electricity protection transistor T58 are connected to the low potential signal line VGL, the second electrode of the fifth low static electricity protection transistor T55, the second electrode of the sixth low static electricity protection transistor T56, the second electrode of the seventh low static electricity protection transistor T57 and the second electrode of the eighth low static electricity protection transistor T58 are connected to the low potential signal line VGL, and the first electrode of the fifth low static electricity protection transistor T55, the first electrode of the sixth low static electricity protection transistor T56, the first electrode of the seventh low static electricity protection transistor T57 and the first electrode of the eighth low static electricity protection transistor T58 are respectively connected to the first sensing electrode Sensor11, the second sensing electrode Sensor12, the third sensing electrode Sensor21 and the fourth sensing electrode Sensor22.

[0061] In some embodiments, Figure 3 , Fig. 9 As shown, a plurality of sensing electrodes 11 located in the same row are electrically connected to different sensing signal lines 12, a plurality of sensing electrodes 11 located in the same column are electrically connected to the same sensing signal line 12, and the number of the sensing electrodes 11 electrically connected to the same sensing signal line 12 is the same as the number of the voltage-regulating transistors 15 electrically connected to the same sensing signal line 12.

[0062] Specifically, Figure 3 As shown, each of the sensing signal lines is electrically connected to two adjacent sensing electrodes in the same column, and correspondingly each of the sensing signal lines is electrically connected to two voltage-stabilizing transistors, and each of the sensing signal lines is connected to two control transistors.

[0063] Specifically, Fig. 9 As shown, each sensing signal line is connected to the adjacent N sensing electrodes in the same column, and the Nth sensing electrode Sensor1N in the first column and the Nth sensing electrode Sensor2N in the second column are connected to different sensing signal lines. Accordingly, a fifth control transistor T61, a sixth control transistor T62, a fifth voltage stabilizing transistor T63, a sixth voltage stabilizing transistor T64, an Nth control signal line TP-MUXN and an Nth voltage stabilizing control line TP-MUX-MSCN are provided, and each sensing electrode, sensing signal line, transistor, control signal line and voltage stabilizing control line are connected correspondingly, wherein N is a positive integer, and N is greater than or equal to 3.

[0064] Specifically, only some sensing electrodes and sensing signal lines are shown in the embodiments of the present application. For the designs of other sensing electrodes and sensing signal lines and components connected thereto, reference may be made to the designs of the above-mentioned sensing electrodes and sensing signal lines and components connected thereto.

[0065] In some embodiments, Figure 4 , Fig.10 As shown, 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 time period during which the voltage-stabilized driving line LFD outputs the pulse signal is the same as the time period during which the sensing electrode 11 receives the sensing signal. By making the voltage-stabilized driving line output a stable low-potential signal or a stable pulse signal, the sensing electrode that is not working can be input with a stable signal, thereby preventing the sensing electrode from being suspended and being affected by other signals or affecting other signals, preventing false touches, preventing poor display, and improving touch stability.

[0066] Specifically, when the voltage-stabilizing driving line LFD outputs a low potential signal or a pulse signal, the signal on the corresponding sensing electrode may not be received to prevent false touches. For example, when the voltage-stabilizing driving line LFD outputs a pulse signal to the second sensing electrode Sensor12 and the fourth sensing electrode Sensor22, the signal on the second sensing electrode Sensor12 and the fourth sensing electrode Sensor22 may not be received to avoid false touches.

[0067] Specifically, Figure 4 In the description, the amplitude of the pulse signal on the voltage-stabilizing driving line is lower than the amplitude of the pulse signal on the sensing signal line. However, the embodiments of the present application are not limited to this. The amplitude of the pulse signal on the voltage-stabilizing driving line can be greater than or equal to the amplitude of the pulse signal on the sensing signal line.

[0068] 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.

[0069] Specifically, the touch mode in the display panel may be mutual capacitive touch.

[0070] Specifically, in the embodiment of the present application, electrical connection means that two signal lines can be indirectly connected or directly connected.

[0071] Specifically, in the embodiments of the present application, signal lines with the same reference numerals indicate that the signals transmitted thereon are the same. Figure 8 Two high potential signal lines VGH are shown in the figure, and the signals on the two high potential signal lines VGH can be the same. And the signal lines with the same label can be connected to the same channel of the driver chip. For example, the two high potential signal lines VGH can be connected and bound to the driver chip through a binding terminal to reduce the number of occupied channels. Similarly, other signal lines with the same label can adopt the above design.

[0072] Specifically, it can be understood that the embodiment of the present application is described by taking the example that the sensing signal line only extends to the corresponding sensing electrode, but the embodiment of the present application is not limited to this. For example, the lengths of the sensing signal lines can be equal, or invalid wiring can be set so that the number and setting density of wiring corresponding to each sensing electrode are equal.

[0073] Specifically, the sensing electrodes in the embodiments of the present application may be arranged in the display area, the signal lines may be arranged in the non-display area, or the signal lines may be arranged in the non-display area and extend to the display area, and the transistors may be arranged in the display area or in the non-display area.

[0074] Specifically, for example, a control transistor, a voltage-stabilizing transistor, a switching transistor, a first anti-static transistor and a second anti-static transistor can be arranged in the non-display area, a control signal line, a voltage-stabilizing drive line, a voltage-stabilizing control line, a common signal line and a switching signal line can be arranged in the non-display area, an induction signal line can be arranged in the non-display area and extend to the display area, and a high-potential signal line and a low-potential signal line can be arranged in the non-display area.

[0075] Specifically, the transistor and the signal line 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 transistor and the signal line arranged between the sensing electrode and the sensing signal line can be arranged in the non-display area on the lower side and the non-display areas on both sides of the display panel.

[0076] Specifically, it can be understood that the embodiment of the present application describes the display panel in detail from the design of each electrode, each transistor, each routing and their connection relationship. It can be understood that when there is no conflict between the embodiments, the embodiments can be combined. For example, the display panel also includes a switch signal line, a common signal line and a switch transistor, the gate of the switch transistor is connected to the switch signal line, the first electrode of the switch transistor is electrically connected to the sensing electrode, and the second electrode of the switch transistor is connected to the common signal line. When the display panel is configured in the display stage, the switch signal line inputs a valid level, and the display panel also includes an 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, each of the sensing electrodes is connected to at least one of the first anti-static transistors and at least one of the second anti-static transistors, 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.

[0077] At the same time, an embodiment of the present application provides a display device, which includes a display panel as described in any of the above embodiments.

[0078] Specifically, Fig.11 As shown, the display device 2 includes a display panel 1 and a driving chip 21 , and the display panel 1 is connected to the driving chip 21 .

[0079] Specifically, the display device may further include a frame, and the display device may be a mobile phone, a laptop computer, or a vehicle-mounted display screen, which is not limited in the embodiments of the present application.

[0080] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0081] The above is a detailed introduction to a display panel and a display device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized in that: The invention comprises a plurality of sensing electrodes and a plurality of sensing signal lines arranged in an array, each of the sensing signal lines is electrically connected to 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 to the control signal line, a first electrode of the control transistor is connected to the sensing electrode, a second electrode of the control transistor is connected to the sensing signal line, a gate of the voltage stabilizing transistor is connected to a voltage stabilizing control line, a first electrode of the voltage stabilizing transistor is connected to the sensing electrode, and a second electrode of the voltage stabilizing transistor is connected to a voltage stabilizing driving line; The gates of the control transistors connected to the sensing electrodes in the same row are connected to the same control signal line, the gates 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. The gates of the plurality of voltage-stabilizing transistors connected to the plurality of sensing electrodes in the same row are connected to the same voltage-stabilizing control line, the gates of the plurality of voltage-stabilizing transistors connected to the plurality of sensing electrodes in different rows are connected to different voltage-stabilizing control lines, and the second electrodes of the voltage-stabilizing transistors are all connected to the voltage-stabilizing driving line; The sensing electrodes are configured to input common signals in the display stage, and the sensing electrodes are configured to input sensing signals in the touch stage. When the display panel is configured in the touch stage, one of the control signal lines inputs a valid level, and the other control signal lines input an invalid level. One of the voltage stabilization control lines inputs an invalid level, and the other voltage stabilization control lines input a valid level. The sensing electrode connected to the control transistor connected to the control signal line inputting the valid level is the same as the sensing electrode connected to the voltage stabilization transistor connected to the voltage stabilization control line inputting the invalid level. The voltage stabilization drive line is configured to output a stabilization signal.

2. The display panel according to claim 1, wherein: The display panel further includes a switch signal line, a common signal line and a switch transistor, wherein a gate of the switch transistor is connected to the switch signal line, a first electrode of the switch transistor is electrically connected to the sensing electrode, a second electrode of the switch transistor is connected to the common signal line, and when the display panel is configured in a display stage, the switch signal line inputs a valid level.

3. The display panel according to claim 2, 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 a side of the sensing electrode away from the sensing signal line.

4. The display panel according to claim 2, wherein: The switch transistor includes a first switch transistor and a second switch transistor. A first switch transistor is provided between each of the sensing electrodes and the corresponding sensing signal line. A second switch transistor is provided between each of the sensing signal lines and the corresponding plurality of sensing electrodes. 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 according to claim 4, wherein: The switch transistor further includes a third switch transistor, which is disposed on a side of the sensing electrode away from the sensing signal line, and each of the sensing electrodes is connected to a first electrode of the third switch transistor.

6. The display panel according to any one of claims 1 to 5, characterized in that: The display panel further includes an 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, and each of the sensing electrodes is connected to at least one of the first anti-static transistors and at least one of the second anti-static transistors; 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 according to claim 6, wherein: The anti-static module includes 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 a side of the sensing electrode away from the sensing signal line.

8. The display panel according to any one of claims 1 to 5, characterized in that: The plurality of sensing electrodes located in the same row are electrically connected to different sensing signal lines, and the plurality of sensing electrodes located in the same column are electrically connected to the same sensing signal line, and the number of the sensing electrodes electrically connected to the same sensing signal line is the same as the number of the voltage regulating transistors electrically connected to the same sensing signal line.

9. The display panel according to any one of claims 1 to 5, characterized in that: The voltage-stabilized driving line is configured to output a low potential signal; or the voltage-stabilized driving line is configured to output a pulse signal, and a time period during which the voltage-stabilized driving line outputs the pulse signal is the same as a time period during which the sensing electrode receives the sensing signal.

10. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 9.

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