Display panel and display device

Abstract

The present application provides a display panel and a display device. When the display panel is in touch mode, a logic controller transmits a touch signal to a touch sensing unit via a touch signal line. When the display panel is in display mode, a switch component conducts the electrical connection between the touch signal line and the common electrode line, and the logic controller transmits a common signal to the touch sensing unit via the touch signal line and the common electrode line. When the display panel is in heating mode, the logic controller transmits a heating signal to the touch signal line and / or the common electrode line to heat the touch signal line and / or the common electrode line. When the display panel is operating in a low-temperature environment, the display panel can enter heating mode to heat the touch signal line and / or the common electrode line, thereby heating the liquid crystal layer within the display panel, which is beneficial for improving the response speed of the liquid crystal molecules in low-temperature environments and ensuring that the display panel can operate normally in low-temperature environments.

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] With the development of optoelectronic display technology and semiconductor manufacturing technology, Thin Film Transistor-Liquid Crystal Display (TFT-LCD) devices equipped with thin film transistors have become increasingly mature. Due to their advantages such as lightness, thinness, and portability, they have been increasingly widely used.

[0003] When a display device in the related art operates in a low-temperature environment, the liquid crystal in the display panel is easily frozen, which slows down the response speed of the liquid crystal molecules, resulting in an increased response time of the display panel or even failure to operate normally. Summary of the Invention

[0004] The purpose of the present application is to provide a display panel and a display device to solve the technical problem in the related art that the response performance and working state of the display panel are easily affected when the display device works in a low temperature environment.

[0005] In a first aspect, the present application provides a display panel, comprising:

[0006] Logic controller;

[0007] a touch signal line and a touch sensing unit, wherein one end of the touch signal line is electrically connected to the touch sensing unit, and the other end is electrically connected to the logic controller, and when the display panel is in touch mode, the logic controller is configured to generate a touch signal and transmit the touch signal to the touch sensing unit via the touch signal line;

[0008] a common electrode wiring electrically connected to the logic controller; and

[0009] A switch component, wherein the switch component is respectively connected to the logic controller, the touch signal line and the common electrode line, and the switch component is used to turn on or off the electrical connection between the touch signal line and the common electrode line under the control of the logic controller; wherein, when the display panel is in the display mode, the switch component turns on the electrical connection between the touch signal line and the common electrode line, the logic controller is configured to form a common signal, and transmit the common signal to the touch sensing unit through the touch signal line and the common electrode line; when the display panel is in the heating mode, the logic controller is configured to form a heating signal, and transmit the heating signal to the touch signal line and / or the common electrode line, so that the touch signal line and / or the common electrode line are heated.

[0010] In the display panel provided by the present application, when the display panel is in touch mode, the logic controller is configured to generate a touch signal and transmit the touch signal to the touch sensing unit via the touch signal line; when the display panel is in display mode, the switch component conducts the electrical connection between the touch signal line and the common electrode line, the logic controller is configured to generate a common signal and transmit the common signal to the touch sensing unit via the touch signal line and the common electrode line; when the display panel is in heating mode, the logic controller is configured to generate a heating signal and transmit the heating signal to the touch signal line and / or the common electrode line to heat the touch signal line and / or the common electrode line. When the display panel is operating in a low temperature environment, the display panel can enter the heating mode to heat the touch signal line and / or the common electrode line, thereby heating the liquid crystal layer in the display panel, so that the liquid crystal molecules in the liquid crystal layer will not be frozen, and the liquid crystal molecules in the liquid crystal layer can be deflected normally, which is beneficial to improving the response speed of the liquid crystal molecules in a low temperature environment, thereby improving the display response speed of the display panel when operating in a low temperature environment, and ensuring that the display panel can operate normally in a low temperature environment. Furthermore, by reusing the touch signal lines and common electrode lines as heating devices, there is no need to set a heating structure at the position corresponding to the display area of the array substrate, which will not affect the width of the data line lines and the pixel aperture ratio, and can improve the light transmittance of the display panel.

[0011] In which, the switch component includes a connected switch control line and a control switch, the switch control line is electrically connected to the logic controller, the control end of the control switch is electrically connected to the switch control line, and the first end and the second end of the control switch are electrically connected to the common electrode line and the touch signal line respectively.

[0012] Among them, the common electrode wiring includes a first common wiring, the first common wiring is electrically connected to the switch component and the logic controller, the first common wiring is arranged around the touch sensing unit, and the first common wiring is arranged in the non-display area of the display panel; when the display panel is in a heating mode, the switch component conducts the electrical connection between the touch signal line and the first common wiring, and the logic controller transmits the heating signal to the touch signal line and the first common wiring, so that the touch signal line and the first common wiring are heated.

[0013] The common electrode wiring includes a second common wiring, and the second common wiring is at least partially bent and disposed in the display area of the display panel.

[0014] The touch signal line includes a first signal line and a second signal line, and the first signal line and the second signal line are electrically connected to different touch sensing units respectively;

[0015] The second common wiring includes a first electrode line and a second electrode line that are relatively spaced apart, and the first electrode line is closer to the logic controller than the second electrode line;

[0016] The switch control line includes a first control line and a second control line that are relatively spaced apart, and the first control line is closer to the logic controller than the second control line;

[0017] The control switch includes a first switch and a second switch that are relatively spaced apart, the control end of the first switch is electrically connected to the first control line, the first end and the second end of the first switch are electrically connected to the first electrode line and the first signal line, respectively, the control end of the second switch is electrically connected to the second control line, and the first end and the second end of the second switch are electrically connected to the second electrode line and the second signal line, respectively.

[0018] The second common wiring includes a proximal electrode line and a distal electrode line that are relatively spaced apart, the proximal electrode line and the distal electrode line are both electrically connected to the logic controller, and at least a portion of the proximal electrode line is closer to the logic controller than the distal electrode line;

[0019] The switch control line includes a third control line and a fourth control line that are relatively spaced apart, and the third control line is closer to the logic controller than the fourth control line;

[0020] The control switch includes a third switch and a fourth switch that are relatively spaced apart, the control end of the third switch is electrically connected to the third control line, the first end and the second end of the third switch are electrically connected to the touch signal line and the proximal electrode line, respectively, the control end of the fourth switch is electrically connected to the fourth control line, and the first end and the second end of the fourth switch are electrically connected to the touch signal line and the distal electrode line, respectively.

[0021] In which, when the display panel is in the touch state and the heating state at the same time, the switch component disconnects the electrical connection between the touch signal line and the common electrode line, and the logic controller is configured to form a touch signal and transmit the touch signal to the touch sensing unit through the touch signal line. The logic controller is also configured to form a heating signal and transmit the heating signal to the second common line to heat the second common line.

[0022] The second common wiring further includes a connecting line for connecting the first electrode line and the second electrode line. The connecting line and the data line are arranged in a different layer, and the connecting line and the touch signal line are arranged in the same layer.

[0023] The second common wiring further includes a connecting line for connecting the first electrode line and the second electrode line, and the connecting line, the touch signal line and the data line are arranged on the same layer.

[0024] In a second aspect, the present application provides a display device, which includes a backlight module and a display panel. The backlight module is used to emit visible light to the display panel, and the display panel is used to transmit the visible light and form a display image.

[0025] In the display device provided by the present application, when the display panel is in touch mode, the logic controller is configured to generate a touch signal and transmit the touch signal to the touch sensing unit via the touch signal line; when the display panel is in display mode, the switch component conducts the electrical connection between the touch signal line and the common electrode line, and the logic controller is configured to generate a common signal and transmit the common signal to the touch sensing unit via the touch signal line and the common electrode line; when the display panel is in heating mode, the logic controller is configured to generate a heating signal and transmit the heating signal to the touch signal line and / or the common electrode line to heat the touch signal line and / or the common electrode line. When the display device is operating in a low temperature environment, the display device can enter the heating mode to heat the touch signal line and / or the common electrode line, thereby heating the liquid crystal layer in the display device, preventing the liquid crystal molecules in the liquid crystal layer from freezing and allowing the liquid crystal molecules in the liquid crystal layer to deflect normally, thereby improving the response speed of the liquid crystal molecules in the low temperature environment, thereby improving the display response speed of the display device in the low temperature environment and ensuring that the display device can operate normally in the low temperature environment. Furthermore, by reusing the touch signal lines and common electrode lines as heating devices, there is no need to set a heating structure at the position corresponding to the display area of the array substrate, which will not affect the width of the data line lines and the pixel aperture ratio, and can improve the light transmittance of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a circuit structure diagram of a display panel provided in the first embodiment of the present application. Figure 1 ;

[0028] Figure 2 This is a circuit structure diagram of a display panel provided in the second embodiment of the present application. Figure 1 ;

[0029] Figure 3 This is a schematic diagram of the circuit structure of a display panel provided in the third embodiment of the present application. Figure 1 ;

[0030] Figure 4 This is a circuit structure diagram of a display panel provided in the first embodiment of the present application. Figure 2 ;

[0031] Figure 5 This is a circuit structure diagram of a display panel provided in the second embodiment of the present application. Figure 2 ;

[0032] Figure 6 This is a schematic diagram of the circuit structure of a display panel provided in the third embodiment of the present application. Figure 2 ;

[0033] Figure 7 This is a structural diagram of a display device provided in the fourth embodiment of the present application.

[0034] Description of labels:

[0035] Display device 1000, display panel 100, logic controller 10, touch signal line 20, first signal line 21, second signal line 22, touch sensing unit 30, common electrode line 40, first common line 41, second common line 42, first electrode line 421, second electrode line 422, first connecting line 423, second connecting line 424, proximal electrode line 425, distal electrode line 426, third connecting line 427, switch assembly 50, switch control line 51, first control line 511, second control line 512, third control line 513, fourth control line 514, control switch 52, first switch 521, second switch 522, third switch 523, fourth switch 524, backlight module 200. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] It should be noted that the terms "first," "second," and so on in the specification, claims, and drawings of this application are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0038] In this specification, for convenience, words and phrases indicating orientation or positional relationships, such as "middle," "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inside," and "outside," are used to illustrate the positional relationships of constituent elements with reference to the accompanying drawings. This is merely for the purpose of facilitating the description of this specification and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present disclosure. The positional relationships of constituent elements may be appropriately changed depending on the orientation of the constituent elements being described. Therefore, the present disclosure is not limited to the words and phrases described in the specification and may be appropriately replaced depending on the circumstances.

[0039] In this specification, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections, indirect connections through intermediaries, or internal communication between two components. Those skilled in the art will understand the meaning of these terms in this disclosure based on the specific circumstances.

[0040] When a display device operates in a low-temperature environment, the liquid crystal in the display panel is easily frozen, slowing down the response speed of the liquid crystal molecules, causing the response time of the display panel to increase or even fail to operate normally. Specifically, the viscosity of the liquid crystal molecular material in the liquid crystal layer will increase as the temperature decreases, which causes the rotation and arrangement speed of the liquid crystal molecules to slow down, resulting in the phenomenon of the liquid crystal molecules being frozen, thereby affecting the response time and display performance of the liquid crystal molecules.

[0041] To ensure normal operation of display devices in low-temperature conditions, display devices typically incorporate internal heating circuits to heat the liquid crystal, improving its response speed and, consequently, the display panel's response speed. Related art display devices typically incorporate a heating module between the backlight module and the display panel. This not only increases the overall thickness of the display device, but also provides minimal heating effect on the liquid crystal and reduces the light transmittance of the display device.

[0042] Please refer to Figures 1 to 3 , Figure 1 This is a circuit structure diagram of a display panel provided in the first embodiment of the present application. Figure 1 , Figure 2 This is a circuit structure diagram of a display panel provided in the second embodiment of the present application. Figure 1 , Figure 3 This is a schematic diagram of the circuit structure of a display panel provided in the third embodiment of the present application. Figure 1 (It should be noted that Figure 2 and Figure 3 The touch display unit is not drawn. Figure 2and Figure 3 The black circle in the figure is the electrical connection point between the touch signal line and the touch display unit. The present application provides a display panel 100 to solve the technical problem in the related art that the response performance and working state of the display device 1000 are easily affected when operating in a low temperature environment.

[0043] In this embodiment, the display panel 100 includes three modes, and the three modes are display mode, touch mode and heating mode. The display panel 100 displays in the display mode, can be used for users to perform touch screen operations in the touch mode, and can be used to heat the liquid crystal layer in the display panel 100 in the heating mode. It should be noted that the display panel 100 can be in one, two, or three of the display mode, touch mode and heating mode at the same time, and this application does not limit this. In addition, the display panel 100 includes a display area and a non-display area. The non-display area is arranged around the display area. The display area is used to arrange pixel units and display images, and the non-display area can be used to arrange structures such as the control module, metal wiring, etc. of the display panel 100.

[0044] The display panel 100 includes a logic controller 10, touch signal lines 20, a touch sensing unit 30, a common electrode line 40, and a switch assembly 50. The display panel 100 includes the logic controller 10, which is also called a timing control circuit (TCON). The logic controller 10 integrates control ICs for various functions within the display panel 100.

[0045] The display panel 100 also includes touch sensing units 30 and touch signal lines 20. In this embodiment, there are multiple touch sensing units 30, and the multiple touch sensing units 30 are arranged in an array within the display area of the display panel 100. There are multiple touch signal lines 20, and there is a one-to-one correspondence between the touch signal lines 20 and the touch sensing units 30. In other words, the number of touch signal lines 20 is the same as the number of touch sensing units 30, and the positions of the touch signal lines 20 correspond to the positions of the touch sensing units 30. Specifically, one end of the touch signal line 20 is electrically connected to the touch sensing unit 30, and the other end is electrically connected to the logic controller 10. When the display panel 100 is in touch mode, the logic controller 10 is configured to generate touch signals and transmit the touch signals to the touch sensing units 30 via the touch signal lines 20. It should be noted that in this embodiment, the display panel 100 is a self-capacitive touch display panel 100.

[0046] The display panel 100 further includes the common electrode traces 40 , and the common electrode traces 40 are electrically connected to the logic controller 10 and can be used to transmit output signals configured by the logic controller 10 .

[0047] The display panel 100 also includes the switch component 50, which is respectively connected to the logic controller 10, the touch signal line 20, and the common electrode line 40. The switch component 50 is used to connect or disconnect the electrical connection between the touch signal line 20 and the common electrode line 40 under the control of the logic controller 10. Specifically, when the logic controller 10 is configured to generate a conduction signal, the switch component 50 receives the conduction signal and connects the electrical connection between the touch signal line 20 and the common electrode line 40; when the logic controller 10 is configured to generate a disconnection signal, the switch component 50 receives the disconnection signal and disconnects the electrical connection between the touch signal line 20 and the common electrode line 40. The specific structure of how the switch component 50 connects or disconnects the electrical connection between the touch signal line 20 and the common electrode line 40 will be described in detail later in this application.

[0048] When the display panel 100 is in display mode, the switch assembly 50 electrically connects the touch signal line 20 and the common electrode line 40, and the logic controller 10 is configured to generate a common signal and transmit the common signal to the touch sensing unit 30 via the touch signal line 20 and the common electrode line 40. At this time, the touch sensing unit 30 is used to apply a common voltage. In other words, the touch sensing unit 30 can serve as the common electrode of the display panel 100 and form a voltage difference with the pixel electrode of the display panel 100 to control the deflection of liquid crystal molecules in the liquid crystal layer of the display panel 100, thereby changing the deflection state of light and the transmittance of the liquid crystal layer, thereby enabling the display panel 100 to display images. In this embodiment, the touch sensing unit 30 is reused as a common electrode. It should be noted that the display mode and touch mode of the display panel 100 need to be performed in time-sharing, that is, when the display panel 100 is in the display mode, the touch sensing unit 30 loads the common signal, and when the display panel 100 is in the touch mode, the touch sensing unit 30 loads the touch signal.

[0049] Wherein, when the display panel 100 is in the heating mode, the logic controller 10 is configured to form a heating signal and transmit the heating signal to the touch signal line 20 and / or the common electrode line 40, so as to heat the touch signal line 20 and / or the common electrode line 40. Specifically, in some embodiments, when the display panel 100 is in the heating mode, the logic controller 10 transmits the heating signal to the touch signal line 20, in some embodiments, when the display panel 100 is in the heating mode, the logic controller 10 transmits the heating signal to the common electrode line 40, in some embodiments, when the display panel 100 is in the heating mode, the logic controller 10 transmits the heating signal to the touch signal line 20 and the common electrode line 40, which are described in detail below based on other matching structures. It should be noted that the heating signal is an AC signal. Inputting an AC signal into the touch signal line 20 and / or the common electrode line 40 is conducive to quickly heating the touch signal line 20 and / or the common electrode line 40 and heating the liquid crystal layer of the display panel 100.

[0050] In the display panel 100 provided in the present application, when the display panel 100 is in the touch mode, the logic controller 10 is configured to generate a touch signal and transmit the touch signal to the touch sensing unit 30 through the touch signal line 20; when the display panel 100 is in the display mode, the switch component 50 conducts the electrical connection between the touch signal line 20 and the common electrode line 40, and the logic controller 10 is configured to generate a common signal and transmit the common signal to the touch sensing unit 30 through the touch signal line 20 and the common electrode line 40; when the display panel 100 is in the heating mode, the logic controller 10 is configured to generate a heating signal and transmit the heating signal to the touch signal line 20 and / or the common electrode line 40, so that the touch signal line 20 and / or the common electrode line 40 are heated. When the display panel 100 operates in a low-temperature environment, the display panel 100 can enter a heating mode to heat the touch signal lines 20 and / or the common electrode lines 40. This can heat the liquid crystal layer within the display panel 100, preventing the liquid crystal molecules in the liquid crystal layer from freezing and allowing them to deflect normally. This helps improve the response speed of the liquid crystal molecules in low-temperature environments, thereby improving the display response speed of the display panel 100 in low-temperature environments and ensuring that the display panel 100 can operate normally in low-temperature environments. Furthermore, by reusing the touch signal lines 20 and the common electrode lines 40 as heating devices, there is no need to set a heating structure at the location corresponding to the display area of the array substrate, which does not affect the width of the data line lines and the pixel aperture ratio, and can improve the light transmittance of the display panel 100.

[0051] Moreover, compared with the related art that requires adding a heating module between the backlight module and the display panel, the solution of the present application can reduce the overall thickness of the display panel 100 and the display device 1000 to which it is applied, thereby improving the lightness and thinness of the display panel 100 and the display device 1000 to which it is applied.

[0052] It should be noted that in all embodiments, if the logic controller 10 of the display panel 100 transmits the heating signal to the touch signal line 20, the touch signal line 20 is electrically connected to the touch sensing unit 30 while being heated, and the touch sensing unit 30 receives the heating signal at the same time, and the touch sensing unit 30 will be heated synchronously to improve the heating effect of the display panel 100.

[0053] Please refer to Figure 1In some embodiments, the switch component 50 includes a connected switch control line 51 and a control switch 52, the switch control line 51 is electrically connected to the logic controller 10, the control end of the control switch 52 is electrically connected to the switch control line 51, and the first end and the second end of the control switch 52 are electrically connected to the common electrode line 40 and the touch signal line 20, respectively.

[0054] The switch control line 51 is electrically connected to the logic controller 10, and the logic controller 10 is used to transmit the on-signal or the off-signal to the control switch 52 through the switch control line 51. The control end of the control switch 52 is used to receive the on-signal or the off-signal to control the first end and the second end to be turned on or off, thereby realizing the electrical connection or disconnection of the common electrode line 40 and the touch signal line 20.

[0055] Optionally, in this embodiment, the control switch 52 is a thin film transistor, the control end is a gate end, the first end is a source end, and the second end is a drain end, which is not limited in this application.

[0056] Please refer to Figure 1 and Figure 4 , Figure 4 This is a circuit structure diagram of a display panel provided in the first embodiment of the present application. Figure 2 Specifically, in some embodiments, the common electrode trace 40 includes a first common trace 41 , which is electrically connected to the switch component 50 and the logic controller 10 , is disposed around the touch sensing unit 30 , and is disposed in a non-display area of the display panel 100 .

[0057] In this embodiment, the touch mode, display mode, and heating mode of the display panel 100 are performed in a time-sharing manner. The following describes in detail the touch mode, display mode, and heating mode of the display panel 100 in conjunction with the switch assembly 50. When the display panel 100 is in the touch mode, the logic controller 10 is configured to generate a disconnect signal and input the disconnect signal into the switch control line 51 to control the control switch 52 to disconnect the electrical connection between the touch signal line 20 and the first common line 41. The logic controller 10 is also configured to generate a touch signal and transmit the touch signal to the touch sensing unit 30 via the touch signal line 20. When the display panel 100 is in a display mode, the logic controller 10 is configured to generate a conduction signal and input the conduction signal into the switch control line 51 to control the control switch 52 to establish an electrical connection between the touch signal line 20 and the first common line 41. The logic controller 10 is also configured to generate a common signal and transmit the common signal to the touch sensing unit 30 via the touch signal line 20 and the first common line 41. When the display panel 100 is in a heating mode, the logic controller 10 is configured to generate a conduction signal and input the conduction signal into the switch control line 51 to control the control switch 52 to establish an electrical connection between the touch signal line 20 and the first common line 41. The logic controller 10 is also configured to generate a heating signal and input the heating signal into the touch signal line 20. The heating signal is then transmitted back to the logic controller 10 via the first common line 41 to complete a closed loop of the heating circuit.

[0058] Please refer to Figure 5 and Figure 6 , Figure 5 This is a circuit structure diagram of a display panel provided in the second embodiment of the present application. Figure 2 , Figure 6 This is a schematic diagram of the circuit structure of a display panel provided in the third embodiment of the present application. Figure 2 In some embodiments, the common electrode wiring 40 includes a second common wiring 42 , and the second common wiring 42 is at least partially bent and disposed in the display area of the display panel 100 .

[0059] Further, please refer to Figure 2 and Figure 5In this embodiment, the touch signal lines 20 include a first signal line 21 and a second signal line 22, each electrically connected to a different touch sensing unit 30. The second common trace 42 includes a first electrode line 421 and a second electrode line 422 spaced apart from each other, with the first electrode line 421 being closer to the logic controller 10 than the second electrode line 422. The switch control lines 51 include a first control line 511 and a second control line 512 spaced apart from each other, with the first control line 511 being closer to the logic controller 10 than the second control line 512. The control switch 52 includes a first switch 521 and a second switch 522 spaced apart from each other, with the control end of the first switch 521 electrically connected to the first control line 511, and the first and second ends of the first switch 521 being electrically connected to the first electrode line 421 and the first signal line 21, respectively. The control end of the second switch 522 is electrically connected to the second control line 512, and the first and second ends of the second switch 522 being electrically connected to the second electrode line 422 and the second signal line 22, respectively.

[0060] Please refer to Figure 2 and Figure 5 In this embodiment, the second common wiring 42 also includes a first connecting line 423 and a second connecting line 424, the first connecting line 423 is used to electrically connect the second electrode line 422 and the logic controller 10, and the second connecting line 424 is used to electrically connect the first electrode line 421 and the second electrode line 422, wherein, in this embodiment, the first connecting line 423, the second electrode line 422, the second connecting line 424 and the first electrode line 421 of the second common wiring 42 can form a flow loop with the logic controller 10.

[0061] The display panel 100 can be in a touch mode and a heating mode at the same time. The following describes in detail the display panel 100 in the touch mode, the display mode, and the heating mode in conjunction with the switch assembly 50 .

[0062] When the display panel 100 is in the display mode, the logic controller 10 is configured to form a conduction signal and input the conduction signal into the first control line 511 and the second control line 512 to control the first switch 521 to conduct the electrical connection between the first signal line 21 and the first electrode line 421, and control the second switch 522 to conduct the electrical connection between the second signal line 22 and the second electrode line 422. The logic controller 10 is also configured to form a common signal and transmit the common signal to the touch sensing unit 30 through the corresponding first signal line 21 and the first electrode line 421, and transmit the common signal to the touch sensing unit 30 through the corresponding second signal line 22 and the second electrode line 422.

[0063] When the display panel 100 is in the touch mode and the heating mode, the logic controller 10 is configured to form a disconnection signal and input the disconnection signal into the first control line 511 and the second control line 512 to control the first switch 521 to disconnect the electrical connection between the first signal line 21 and the first electrode line 421, and control the second switch 522 to disconnect the electrical connection between the second signal line 22 and the second electrode line 422; the logic controller 10 is also configured to form a touch signal and transmit the touch signal to different touch sensing units 30 through the first signal line 21 and the second signal line 22; the logic controller 10 is also configured to form a heating signal and input the heating signal into the first electrode line 421, the second electrode line 422, the first connecting line 423 and the second connecting line 424.

[0064] In this embodiment, the display panel 100 can be in touch mode and heating mode at the same time. Compared with the first embodiment, one timing sequence can be reduced, thereby extending the time of the display panel 100 in the display mode, touch mode and heating mode, which is beneficial to improving the display effect, touch accuracy and heating efficiency of the display panel 100.

[0065] Please refer to Figure 3 and Figure 6In this embodiment, the second common trace 42 includes a proximal electrode line 425 and a distal electrode line 426 that are spaced apart from each other. Both the proximal electrode line 425 and the distal electrode line 426 are electrically connected to the logic controller 10, and at least a portion of the proximal electrode line 425 is closer to the logic controller 10 than the distal electrode line 426. The switch control line 51 includes a third control line 513 and a fourth control line 514 that are spaced apart from each other. The third control line 513 is closer to the logic controller 10 than the fourth control line 514. The control switch 52 includes a third switch 523 and a fourth switch 524 that are relatively spaced apart. The control end of the third switch 523 is electrically connected to the third control line 513, and the first end and the second end of the third switch 523 are electrically connected to the touch signal line 20 and the proximal electrode line 425, respectively. The control end of the fourth switch 524 is electrically connected to the fourth control line 514, and the first end and the second end of the fourth switch 524 are electrically connected to the touch signal line 20 and the distal electrode line 426, respectively.

[0066] Please refer to Figure 3 and Figure 6 In this embodiment, the second electrode line 422 further includes a plurality of third connection lines 427, which are used to connect the proximal electrode line 425 and the distal electrode line 426. In this embodiment, the proximal electrode line 425, the third connection lines 427, and the distal electrode line 426 of the second common wiring 42 can form a flow loop with the logic controller 10.

[0067] The following describes in detail the display panel 100 in the touch mode, display mode, and heating mode in conjunction with the switch assembly 50 .

[0068] When the display panel 100 is in touch mode, the logic controller 10 is configured to form a disconnect signal and input the disconnect signal into the third control line 513 and the fourth control line 514 to control the third switch 523 to disconnect the electrical connection between the touch signal line 20 and the proximal electrode line 425, and control the fourth switch 524 to disconnect the electrical connection between the touch signal line 20 and the distal electrode line 426; the logic controller 10 is also configured to form a touch signal and transmit the touch signal to the touch sensing unit 30 through the touch signal line 20.

[0069] When the display panel 100 is in the display mode, the logic controller 10 is configured to form a conduction signal and input the conduction signal into the third control line 513 and the fourth control line 514 to control the third switch 523 to conduct the electrical connection between the touch signal line 20 and the proximal electrode line 425, and to control the fourth switch 524 to conduct the electrical connection between the touch signal line 20 and the distal electrode line 426. The logic controller 10 is also configured to form a common signal and transmit the common signal to the touch sensing unit 30 through the proximal electrode line 425, the distal electrode line 426 and the touch signal line 20, and at the same time transmit the common signal to the touch signal line 20 through the proximal electrode line 425 and the distal electrode line 426, which is beneficial to enhance the common signal recovery capability of the touch signal line 20 and further improve the display effect of the display panel 100.

[0070] When the display panel 100 is in the heating mode, the logic controller 10 is configured to form a conduction signal and input the conduction signal into the third control line 513 and the fourth control line 514 to control the third switch 523 to conduct the electrical connection between the touch signal line 20 and the proximal electrode line 425, and to control the fourth switch 524 to conduct the electrical connection between the touch signal line 20 and the distal electrode line 426; the logic controller 10 is also configured to form a heating signal and input the heating signal into the proximal electrode line 425, the third connection line 427, the distal electrode line 426 and the touch signal line 20, which is beneficial to increase the heating area of the display panel 100 and further improve the heating effect of the display panel 100.

[0071] It should be noted that, in this embodiment, the display panel 100 can also be in touch mode and heating mode at the same time. Specifically, when the display panel 100 is in touch mode and heating mode, the logic controller 10 is configured to form a disconnection signal and input the disconnection signal into the third control line 513 and the fourth control line 514 to control the third switch 523 to disconnect the electrical connection between the touch signal line 20 and the proximal electrode line 425, and control the fourth switch 524 to disconnect the electrical connection between the touch signal line 20 and the distal electrode line 426; the logic controller 10 is also configured to form a touch signal and transmit the touch signal to the touch sensing unit 30 through the touch signal line 20; the logic controller 10 is also configured to form a heating signal and input the heating signal into the proximal electrode line 425, the third connection line 427 and the distal electrode line 426. The display panel 100 can be in touch mode and heating mode at the same time, which can reduce one timing compared to the first embodiment, thereby extending the time the display panel 100 is in display mode, touch mode and heating mode, which is beneficial to improving the display effect, touch accuracy and heating efficiency of the display panel 100.

[0072] In some embodiments, the second common traces 42 further include connecting wires for connecting the first electrode lines 421 and the second electrode lines 422. The connecting wires are provided on a different layer from the data lines and on the same layer as the touch signal lines 20. It should be noted that the connecting wires include the first connecting wires 423, the second connecting wires 424, and the third connecting wires 427. Optionally, in this embodiment, the material of the connecting wires includes, but is not limited to, molybdenum or other metals.

[0073] In some embodiments, the second common traces 42 further include connecting wires for connecting the first electrode lines 421 and the second electrode lines 422. The connecting wires, the touch signal lines 20, and the data lines are disposed on the same layer. It should be noted that the connecting wires include the first connecting wires 423, the second connecting wires 424, and the third connecting wires 427. Optionally, in this embodiment, the connecting wires are made of, but not limited to, aluminum, copper, or other metals. The connecting wires can be integrally formed with the touch signal lines 20 and the data lines within the display panel 100 through a single process.

[0074] Please refer to Figure 7 , Figure 7This is a schematic diagram of the structure of a display device provided in Embodiment 4 of the present application. The present application also provides a display device 1000, which includes a backlight module 200 and a display panel 100. The backlight module 200 is configured to emit visible light to the display panel 100, and the display panel 100 is configured to transmit the visible light and form a display image.

[0075] In the display device 1000 provided in the present application, when the display panel 100 is in the touch mode, the logic controller 10 is configured to generate a touch signal and transmit the touch signal to the touch sensing unit 30 through the touch signal line 20; when the display panel 100 is in the display mode, the switch component 50 conducts the electrical connection between the touch signal line 20 and the common electrode line 40, and the logic controller 10 is configured to generate a common signal and transmit the common signal to the touch sensing unit 30 through the touch signal line 20 and the common electrode line 40; when the display panel 100 is in the heating mode, the logic controller 10 is configured to generate a heating signal and transmit the heating signal to the touch signal line 20 and / or the common electrode line 40, so that the touch signal line 20 and / or the common electrode line 40 are heated. When the display device 1000 operates in a low-temperature environment, the display device 1000 can enter a heating mode to heat the touch signal lines 20 and / or the common electrode lines 40. This can heat the liquid crystal layer within the display device 1000, preventing the liquid crystal molecules in the liquid crystal layer from freezing and allowing them to deflect normally. This helps improve the response speed of the liquid crystal molecules in low-temperature environments, thereby improving the display response speed of the display device 1000 in low-temperature environments and ensuring that the display device 1000 can operate normally in low-temperature environments. Furthermore, by reusing the touch signal lines 20 and the common electrode lines 40 as heating devices, there is no need to install a heating structure in the corresponding display area of the array substrate, which does not affect the width of the data line lines and the pixel aperture ratio, thereby improving the light transmittance of the display device 1000.

[0076] Mentioning "embodiments" and "implementation methods" in this application means that the specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrases in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments. In addition, it should be understood that the features, structures or characteristics described in the various embodiments of the present application can be arbitrarily combined to form another embodiment that does not deviate from the spirit and scope of the technical solution of the present application, unless there is a contradiction between them.

[0077] The above is part of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A display panel, characterized in that: The display panel includes: Logic controller; a touch signal line and a touch sensing unit, wherein one end of the touch signal line is electrically connected to the touch sensing unit, and the other end is electrically connected to the logic controller, and when the display panel is in touch mode, the logic controller is configured to generate a touch signal and transmit the touch signal to the touch sensing unit via the touch signal line; a common electrode wiring electrically connected to the logic controller; and A switch component, wherein the switch component is respectively connected to the logic controller, the touch signal line and the common electrode line, and the switch component is used to turn on or off the electrical connection between the touch signal line and the common electrode line under the control of the logic controller; wherein, when the display panel is in the display mode, the switch component turns on the electrical connection between the touch signal line and the common electrode line, the logic controller is configured to form a common signal, and transmit the common signal to the touch sensing unit through the touch signal line and the common electrode line; when the display panel is in the heating mode, the logic controller is configured to form a heating signal, and transmit the heating signal to the touch signal line and / or the common electrode line, so that the touch signal line and / or the common electrode line are heated.

2. The display panel according to claim 1, wherein: The switch assembly includes a connected switch control line and a control switch, the switch control line is electrically connected to the logic controller, the control end of the control switch is electrically connected to the switch control line, and the first end and the second end of the control switch are electrically connected to the common electrode line and the touch signal line respectively.

3. The display panel according to claim 1, wherein: The common electrode wiring includes a first common wiring, which is electrically connected to the switch component and the logic controller. The first common wiring is arranged around the touch sensing unit, and the first common wiring is arranged in the non-display area of the display panel; when the display panel is in a heating mode, the switch component conducts the electrical connection between the touch signal line and the first common wiring, and the logic controller transmits the heating signal to the touch signal line and the first common wiring, so that the touch signal line and the first common wiring are heated.

4. The display panel according to claim 2, wherein: The common electrode wiring includes a second common wiring, and the second common wiring is at least partially bent and disposed in the display area of the display panel.

5. The display panel according to claim 4, wherein: The touch signal line includes a first signal line and a second signal line, wherein the first signal line and the second signal line are electrically connected to different touch sensing units respectively; The second common wiring includes a first electrode line and a second electrode line that are relatively spaced apart, and the first electrode line is closer to the logic controller than the second electrode line; The switch control line includes a first control line and a second control line that are relatively spaced apart, and the first control line is closer to the logic controller than the second control line; The control switch includes a first switch and a second switch that are relatively spaced apart, the control end of the first switch is electrically connected to the first control line, the first end and the second end of the first switch are electrically connected to the first electrode line and the first signal line, respectively, the control end of the second switch is electrically connected to the second control line, and the first end and the second end of the second switch are electrically connected to the second electrode line and the second signal line, respectively.

6. The display panel according to claim 4, wherein: The second common wiring includes a proximal electrode line and a distal electrode line that are relatively spaced apart, the proximal electrode line and the distal electrode line are both electrically connected to the logic controller, and at least a portion of the proximal electrode line is closer to the logic controller than the distal electrode line; The switch control line includes a third control line and a fourth control line that are relatively spaced apart, and the third control line is closer to the logic controller than the fourth control line; The control switch includes a third switch and a fourth switch that are relatively spaced apart, the control end of the third switch is electrically connected to the third control line, the first end and the second end of the third switch are electrically connected to the touch signal line and the proximal electrode line, respectively, the control end of the fourth switch is electrically connected to the fourth control line, and the first end and the second end of the fourth switch are electrically connected to the touch signal line and the distal electrode line, respectively.

7. The display panel according to claim 4, wherein: When the display panel is in the touch mode and the heating mode at the same time, the switch component disconnects the electrical connection between the touch signal line and the common electrode line, the logic controller is configured to form a touch signal, and transmit the touch signal to the touch sensing unit through the touch signal line, and the logic controller is also configured to form a heating signal, and transmit the heating signal to the second common line to heat the second common line.

8. The display panel according to claim 5, wherein: The second common wiring further includes a connecting line for connecting the first electrode line and the second electrode line. The connecting line and the data line are arranged in a different layer, and the connecting line and the touch signal line are arranged in the same layer.

9. The display panel according to claim 5, wherein: The second common wiring further includes a connecting line for connecting the first electrode line and the second electrode line. The connecting line, the touch signal line and the data line are arranged on the same layer.

10. A display device, characterized in that: The invention comprises a backlight module and the display panel according to any one of claims 1 to 9, wherein the backlight module is used to emit visible light to the display panel, and the display panel is used to transmit the visible light and form a display image.

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