Touch panel, touch display panel and display device

Abstract

The application relates to a touch panel, a touch display panel and a display device. The touch panel comprises a driving chip, a substrate and a thermocouple detection module. The substrate comprises an active area and a non-active area surrounding the active area; the active area is electrically connected with the driving chip; the thermocouple detection module is arranged in the non-active area and is electrically connected with the driving chip, and the thermocouple detection module is used for measuring temperature information of the non-active area in real time; and the driving chip is used for performing temperature compensation on touch point coordinates collected by the active area according to the temperature information measured by the thermocouple detection module. When a user performs a touch operation on the active area, the driving chip can perform real-time and accurate temperature compensation on the touch point coordinates according to the obtained temperature information, and then the touch point coordinates are transmitted to a host computer, so that the error of the touch point coordinates input into the host computer is small, and the stability and accuracy of the touch panel itself are also good. Therefore, when the touch panel is applied in an environment with large temperature difference, the error of input information is small.

Description

Technical Field

[0001] This invention relates to the field of display device technology, and in particular to touch panels, touch display panels, and display devices. Background Technology

[0002] When a user touches the touch panel, the touched location is detected by a touch sensor located beneath the panel and converted into touch coordinates, which are then sent to the host computer to determine the input information. However, the resistance of the touch sensor changes with the ambient temperature. This means that when a user touches the same point on the touch panel at different temperatures, the touch sensor may detect different coordinates, resulting in significant input errors and poor stability and accuracy of the touch panel. In existing technology, to improve this situation, the touch chip roughly estimates a temperature compensation curve and performs a quantitative compensation to reduce input errors during use. However, this method still results in significant input errors when the touch panel is used in environments with large temperature variations, negatively impacting the user experience. Summary of the Invention

[0003] Therefore, it is necessary to provide a new type of touch panel to address the problem that users often experience significant input errors when operating the touch panel in environments with large temperature variations.

[0004] A touch panel, characterized in that the touch panel comprises:

[0005] Driver chip;

[0006] A substrate, the substrate including an active region and a non-active region surrounding the active region; the active region is electrically connected to the driver chip;

[0007] A thermocouple detection module is provided, which is located in the non-active zone and is electrically connected to the driving chip. The thermocouple detection module is used to measure the temperature information of the non-active zone in real time.

[0008] The driving chip is used to perform temperature compensation on the contact coordinates collected by the active area based on the temperature information measured by the thermocouple detection module.

[0009] In one embodiment, the thermocouple detection module includes:

[0010] A first electrode, comprising a first end and a second end disposed along its own length direction; the first end is electrically connected to the driving chip.

[0011] The second electrode is spaced apart from the first electrode; the second electrode includes a third end and a fourth end disposed along its own length direction; the third end is electrically connected to the second end; the fourth end is electrically connected to the driver chip.

[0012] The first electrode and the second electrode have different Seebeck coefficients, and the first electrode, the second electrode, and the driving chip can form a closed loop together.

[0013] In one embodiment, the non-active area is configured with a binding part, and the binding part is provided with a first connection terminal and a second connection terminal at intervals;

[0014] The driver chip has a third connection terminal and a fourth connection terminal spaced apart on the side closest to the substrate.

[0015] One end of the first connecting terminal is electrically connected to the first end, and the other end of the first connecting terminal is electrically connected to the third connecting terminal;

[0016] One end of the second connection terminal is electrically connected to the fourth terminal, and the other end of the second connection terminal is electrically connected to the fourth connection terminal.

[0017] In one embodiment, the first electrode and the second electrode are disposed on the same layer of the substrate.

[0018] In one embodiment, the substrate includes a receiving electrode layer and a transmitting electrode layer stacked together;

[0019] Both the first electrode and the second electrode are disposed on the receiving electrode layer; or both the first electrode and the second electrode are disposed on the transmitting electrode layer.

[0020] In one embodiment, the second end and the third end are bonded together using conductive silver adhesive.

[0021] The present invention also provides a touch display panel, characterized in that it includes the touch panel described in any of the above claims, and further includes a display panel, wherein the display panel is located on the touch panel.

[0022] The present invention also provides a display device, characterized in that it includes the above-mentioned touch display panel and a host, wherein the host is electrically connected to the driving chip, and the driving chip is capable of transmitting the touch point coordinates collected by the active area to the host.

[0023] In one embodiment, the driving chip is used to perform temperature compensation on the contact coordinates collected in the active area based on the temperature information measured by the thermocouple detection module, and transmit the temperature-compensated contact coordinates to the host.

[0024] In one embodiment, the driver chip is further provided with an overheat protection module; the overheat protection module is electrically connected to the active area.

[0025] When the temperature of the non-active zone measured by the thermocouple detection module is higher than a first preset value, the overheat protection module can control the active zone to suspend operation; or

[0026] When the temperature of the non-active zone measured by the thermocouple detection module is lower than the second preset value, the overheat protection module can control the active zone to suspend operation.

[0027] During use, the aforementioned touch panel, touch display panel, and display device utilize a thermocouple detection module located within the inactive area of ​​the substrate. This module is connected to the driver chip, allowing it to measure the temperature of the inactive area in real time and transmit this information to the driver chip. Consequently, when a user performs a touch operation on the active area of ​​the touch panel, the driver chip can perform real-time, precise temperature compensation for the touch point coordinates based on the acquired temperature information before transmitting the data to the host computer. This results in a smaller error in the touch point coordinates input to the host computer, enhancing the stability and accuracy of the touch panel itself. Consequently, even in environments with significant temperature variations, the input information error is minimized, leading to a better user experience. Attached Figure Description

[0028] Figure 1 A schematic diagram showing the connection between the touch panel, the display panel, and the host in the display device provided in the first embodiment of this application;

[0029] Figure 2 A schematic diagram showing the connection between the touch panel, the display panel, and the host in the display device provided in the second embodiment of this application;

[0030] Figure 3 This is a schematic diagram of the thermocouple detection module in the touch panel of the display device provided in the first embodiment of this application;

[0031] Figure 4 A schematic diagram of a thermocouple detection module in a touch panel of a display device provided in the second embodiment of this application;

[0032] Figure 5 This is a schematic diagram of the structure of a touch display panel provided in an embodiment of this application.

[0033] Reference numerals: 100-Driver chip; 110-Thermocouple voltage processing module; 120-Touch processing module; 130-Overheat protection module; 200-Substrate; 210-Active area; 220-Non-active area; 221-Bonding part; 2211-First connection terminal; 2212-Second connection terminal; 230-Receiving electrode layer; 240-Emitting electrode layer; 300-Thermocouple detection module; 310-First electrode; 311-First end; 312-Second end; 320-Second electrode; 321-Third end; 322-Fourth end; 400-Display panel; 500-Cover plate; 600-Ink layer; 700-Main unit. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0040] See Figures 1-4 , Figure 1 This illustration shows a connection diagram of the touch panel, display panel 400, and host 700 in the display device provided in the first embodiment of this application. Figure 2 A schematic diagram showing the connection between the touch panel, the display panel 400, and the host 700 in the display device provided in the second embodiment of this application is shown. Figure 3 A schematic diagram of a thermocouple detection module 300 in a touch panel of a display device provided in the first embodiment of this application is shown. Figure 4 A schematic diagram of a thermocouple detection module 300 in a touch panel of a display device provided in the second embodiment of this application is shown.

[0041] An embodiment of this application provides a touch panel including a driver chip 100, a substrate 200, and a thermocouple detection module 300. The substrate 200 includes an active area 210 and a non-active area 220 surrounding the active area 210; the active area 210 is electrically connected to the driver chip 100; the thermocouple detection module 300 is disposed within the non-active area 220 and is electrically connected to the driver chip 100, and the thermocouple detection module 300 is used to measure the temperature information of the non-active area 220 in real time; the driver chip 100 is used to perform temperature compensation on the touch point coordinates collected by the active area 210 based on the temperature information measured by the thermocouple detection module 300.

[0042] During use, the thermocouple detection module 300 is located within the non-active area 220 of the substrate 200 and is connected to the driver chip 100. Therefore, the thermocouple detection module 300 can measure the temperature information of the non-active area 220 in real time and transmit the measured temperature information to the driver chip 100. Consequently, when a user performs a touch operation on the active area 210 of the touch panel, the driver chip 100 can perform real-time and accurate temperature compensation for the touch point coordinates based on the acquired temperature information before transmitting the data to the host 700. This results in a smaller error in the touch point coordinates input to the host 700, and better stability and accuracy of the touch panel itself. Thus, when the touch panel is used in environments with large temperature variations, the input information error is small, leading to a better user experience.

[0043] It should be noted that when a user performs a touch operation on the touch panel, the location touched is detected by the touch sensor below the touch panel and converted into touch point coordinates, which are then sent to the host to determine the input information.

[0044] It should be noted that the temperature information of the non-active area 220 measured in real time by the thermocouple detection module 300 is the ambient temperature information of the touch panel. By detecting the changes in the ambient temperature of the control panel in real time, the temperature of the active area 210 of the substrate 200 can be obtained in real time by the driver chip 100. Finally, the driver chip 100 can perform real-time accurate temperature compensation for the touch point coordinates based on the obtained temperature information before transmitting it to the host 700.

[0045] Specifically, after the temperature information measured by the thermocouple detection module 300 is transmitted to the driver chip 100, the driver chip 100 compares the temperature information with a preset temperature value and calculates the difference, and determines the amount of compensation required based on the difference. When a user performs a touch operation on the touch panel, the touched position is detected by the touch sensor below the touch panel and converted into touch point coordinates 1. After the touch point coordinates 1 are transmitted to the driver chip 100, the driver chip 100 adds the amount of compensation required to the touch point coordinates 1, and finally sends the compensated touch point coordinates 2 to the host 700.

[0046] In one specific embodiment, the touch panel also includes a display screen. The thermocouple detection module 300 is connected to the display screen. When the thermocouple detection module 300 detects the temperature information of the non-active area 220 in real time, it can display the temperature on the display screen in real time. The user can also manually control whether the driver chip 100 performs temperature compensation based on the displayed temperature. For example, when the temperature displayed on the screen is 0-40°C, the driver chip 100 can be selected not to perform temperature compensation to reduce the real-time power consumption of the touch panel and effectively extend its single-charge usage time.

[0047] The following is a detailed description of the touch panel's structure. Please refer to [link / reference]. Figure 3 and Figure 4 An embodiment of this application provides a thermocouple detection module 300 for a touch panel, including a first electrode 310 and a second electrode 320. The first electrode 310 includes a first end 311 and a second end 312 arranged along its length; the first end 311 is electrically connected to a driver chip 100; the second electrode 320 is spaced apart from the first electrode 310; the second electrode 320 includes a third end 321 and a fourth end 322 arranged along its length; the third end 321 is electrically connected to the second end 312; the fourth end 322 is electrically connected to the driver chip 100; wherein the first electrode 310 and the second electrode 320 have different Seebeck coefficients, and the first electrode 310, the second electrode 320, and the driver chip 100 can jointly form a closed loop. By using two electrodes with different Seebeck coefficients to jointly form a closed loop with the driver chip 100, when the temperature of the non-active area 220 changes, an electromotive force is generated in this closed loop, thereby enabling the driver chip 100 to obtain temperature information on the touch panel based on this electromotive force.

[0048] In one specific embodiment, the first electrode 310 is made of indium tin oxide (ITO), and the second electrode 320 is made of copper wire. Therefore, the two electrodes have different Seebeck coefficients, allowing the first electrode 310, the second electrode 320, and the driver chip 100 to form a closed loop. When the temperature of the non-active area 220 changes, an electromotive force (EMF) is generated in this closed loop, enabling the driver chip 100 to obtain temperature information from the touch panel based on this EMF. Of course, in other embodiments, the first electrode 310 and the second electrode 320 can also be made of other materials, allowing for adaptive selection based on the required operating conditions.

[0049] In another embodiment, the first electrode 310 is a nickel-chromium alloy, the second electrode 320 is a copper-nickel alloy, and the thermocouple formed by the two electrodes is suitable for a temperature range of -200 to 900°C.

[0050] In another embodiment, the first electrode 310 is high-purity iron, the second electrode 320 is a copper-nickel alloy, and the thermocouple formed by the two electrodes is suitable for a temperature range of 0-750°C.

[0051] In another embodiment, the first electrode 310 is made of high-purity copper, and the second electrode 320 is made of a copper-nickel alloy. The thermocouple formed by these two electrodes has an applicable temperature range of -200 to 350°C. It is suitable for use in mild oxidizing and reducing media. It performs well in humid environments and is widely used in low-temperature environments and refrigeration equipment.

[0052] It should be noted that, since the thermocouple detection module 300 of this solution is formed by two electrodes made of metal materials with different Seebeck coefficients together with the driver chip 100 to form a closed circuit, its connection with the touch panel is relatively simple and convenient. For example, ITO indium tin oxide material and copper wire can be directly selected. However, when ceramic or polymer materials used in hot-surface resistors are selected, they are difficult to apply to touch panels. Therefore, the touch panel claimed in this application has a simpler structure, is easier to manufacture, and has lower processing costs.

[0053] Please see Figure 3 and Figure 4In one embodiment of this application, the non-active area 220 of the touch panel is constructed with a bonding portion 221. The bonding portion 221 is provided with a first connection terminal 2211 and a second connection terminal 2212 spaced apart. The driver chip 100 is provided with a third connection terminal and a fourth connection terminal spaced apart on the side near the substrate 200. One end of the first connection terminal 2211 is electrically connected to the first end 311, and the other end of the first connection terminal 2211 is electrically connected to the third connection terminal. One end of the second connection terminal 2212 is electrically connected to the fourth end 322, and the other end of the second connection terminal 2212 is electrically connected to the fourth connection terminal. The first connection terminal 2211 of the bonding portion 221 of the non-active area 220 is connected between the first electrode 310 and the third connection terminal of the driver chip 100, and the second connection terminal 2212 of the bonding portion 221 is connected between the second motor and the fourth connection terminal of the driver chip 100, so that the first electrode 310 and the second electrode 320 are electrically connected to the driver chip 100. Since the bonding part 221 already has a structure on the touch panel, there is no need to set up additional connection points for the corresponding electrodes and the driver chip 100, which is simpler and more convenient.

[0054] Please see Figure 1 and Figure 2 In one specific embodiment, the driver chip 100 includes a thermocouple voltage processing module 110. The thermocouple voltage processing module 110 is used to analyze the electromotive force generated by the closed circuit formed by the first electrode 310, the second electrode 320 and the driver chip 100, and then convert it into temperature information, so that the driver chip 100 can measure the temperature information of the non-active area 220 in real time.

[0055] Please see Figure 1 and Figure 2 In one specific embodiment, the driver chip 100 further includes a touch processing module 120, which is electrically connected to the thermocouple voltage processing module 110 and the active area 210. The thermocouple voltage processing module 110 analyzes the electromotive force generated by the closed loop formed by the first electrode 310, the second electrode 320, and the driver chip 100, converts it into temperature information, and transmits this temperature information to the touch processing module 120. The touch processing module 120 then performs temperature compensation on the touch coordinates obtained from the active area 210, and finally transmits the temperature-compensated touch coordinates to the host 700.

[0056] It should be noted that the shapes of the first electrode 310 and the second electrode 320 are not specifically limited, and can be adaptively adjusted and modified according to the size of the non-active area 220 and the positions of the first connecting terminal 2211 and the second connecting terminal 2212. For example, they can be as follows: Figure 3 The setting shown extends along the xx' direction, and can also be configured as follows: Figure 4 The setting is shown as extending first along the yy' direction, and then along the xx' direction.

[0057] It should be noted that the binding part 221 is provided with multiple connection terminals at intervals. One of the connection terminals can be arbitrarily selected as the first connection terminal 2211, and another connection terminal can be selected as the second connection terminal 2212. There is no specific limitation on this.

[0058] In one embodiment, the first electrode 310 and the second electrode 320 of the touch panel are disposed on the same layer of the substrate 200. This facilitates the conductive connection between the second end 312 of the first electrode 310 and the third end 321 of the second electrode 320.

[0059] Please see Figure 5 , Figure 5 A schematic diagram of a touch display panel according to an embodiment of this application is shown. The substrate 200 of the touch panel according to an embodiment of this application includes a receiving electrode layer 230 and a transmitting electrode layer 240 stacked together. In one embodiment, both the first electrode 310 and the second electrode 320 are disposed on the receiving electrode layer 230. In another embodiment, both the first electrode 310 and the second electrode 320 are disposed on the transmitting electrode layer 240. Since both the first electrode 310 and the second electrode 320 are disposed on the receiving electrode layer 230, or both are disposed on the transmitting electrode layer 240, the entire touch panel does not require an additional layer to house the first electrode 310 and the second electrode 320. It only requires directly placing the first electrode 310 and the second electrode 320 on the transmitting electrode layer 240 or the receiving electrode layer 230, which is simpler and more convenient, and requires less modification to the existing touch panel structure.

[0060] Please see Figure 5 In one embodiment of this application, the emitter electrode layer 240 of the substrate provided is further provided with an ink layer 600 on the side opposite to the receiver electrode layer 230.

[0061] In one embodiment, the second end 312 and the third end 321 are bonded together using conductive silver paste. The conductive silver paste bonds the second end 312 and the third end 321, thereby achieving a conductive connection between them. Of course, in other embodiments, the second end 312 and the third end 321 can also be bonded together to achieve a conductive connection; this is not specifically limited.

[0062] This application also provides a touch display panel, which includes the touch panel described in any of the above embodiments, and further includes a display panel 400 located on the touch panel, thereby achieving at least one of the above technical effects.

[0063] Please see Figure 5 The touch display panel provided in one embodiment of the present invention further includes a cover plate 500, which is disposed on the side of the display panel 400 away from the substrate 200.

[0064] This application also provides a display device, which includes the aforementioned touch display panel and a host 700. The host 700 is electrically connected to a driver chip 100, and the driver chip 100 can transmit the touch coordinates collected by the active area 210 to the host 700. When a user performs a touch operation on the display panel 400 above the active area 210 of the touch panel, the touched position is detected by a touch sensor below the display panel 400 and converted into touch coordinates, which are then transmitted to the host 700 to determine the input information. Specifically, the display device can be a mobile phone, tablet, or other digital display device.

[0065] In one embodiment, the driver chip 100 performs temperature compensation on the contact coordinates collected by the active area 210 based on the temperature information measured by the thermocouple detection module 300, and transmits the temperature-compensated contact coordinates to the host 700. When a user performs a touch operation on the display panel 400 above the active area 210 of the touch panel, the driver chip 100 measures the temperature information of the non-active area 220 in real time through the thermocouple detection module 300, and transmits the measured temperature information to the driver chip 100. This allows the driver chip 100 to perform real-time and accurate temperature compensation on the contact coordinates based on the acquired temperature information before transmitting it to the host 700. Ultimately, this results in a smaller error in the contact coordinates input to the host 700, and better stability and accuracy of the touch panel itself. Consequently, when the touch panel is used in environments with large temperature variations, the input information error is smaller, thus improving the user experience.

[0066] Please see Figure 2 In one embodiment of this application, the driver chip 100 of the display device is further provided with an overheat protection module 130. The overheat protection module 130 is electrically connected to the active area 210 and to the thermocouple voltage processing module 110. When the temperature of the non-active area 220 measured by the thermocouple detection module 300 is higher than a first preset value, the overheat protection module 130 can control the active area 210 to stop operating; or when the temperature of the non-active area 220 measured by the thermocouple detection module 300 is lower than a second preset value, the overheat protection module 130 can control the active area 210 to stop operating.

[0067] By incorporating an overheat protection module 130 within the driver chip 100, the active zone 210 is prevented from continuing to operate and generate heat to avoid increasing the temperature of the driver chip 100 when the temperature of the non-active zone 220 measured by the thermocouple detection module 300 exceeds a first preset value. Alternatively, the overheat protection module 130 can control the active zone 210 to suspend operation when the temperature of the non-active zone 220 measured by the thermocouple detection module 300 is below a second preset value. When the temperature of the non-active zone 220 is greater than the second preset value but less than the first preset value, the display device operates normally. This control method prevents the active zone 210 from operating in extreme weather conditions, thus extending the lifespan of the display device.

[0068] For example, when abnormal weather events like ice storms or tornadoes occur and then dissipate quickly, if the temperature is high during sunny weather, a sudden tornado can block the sun and cause a sharp drop in temperature due to strong winds. Conversely, once the tornado leaves and sunlight resumes, the temperature can rise sharply. Similarly, if nearby trees are struck by lightning or other unexplained causes and a fire breaks out, but the fire hasn't yet reached the product, the surrounding temperature can rise rapidly. When the display device is used in these environments with significant temperature fluctuations, if the temperature of the non-active zone 220 measured by the thermocouple detection module 300 is higher than a first preset value or lower than a second preset value, the overheat protection module 130 will control the active zone 210 to suspend operation to prevent continued use of the active zone 210 in extreme weather conditions, thus reducing its lifespan. It should be noted that the preset values ​​can be manually adjusted according to actual conditions and are not specifically limited. Optionally, the first preset value can be 100℃, and the second preset value can be -50℃.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A touch panel, characterized in that, The touch panel includes: Driver chip (100); A substrate (200) includes an active region (210) and a non-active region (220) surrounding the active region (210); the active region (210) is electrically connected to the driver chip (100); A thermocouple detection module (300) is disposed in the non-active area (220) and electrically connected to the driving chip (100). The thermocouple detection module (300) is used to measure the temperature information of the non-active area (220) in real time. The thermocouple detection module (300) includes a first electrode (310) and a second electrode (320) disposed at a distance from the first electrode (310). The Seebeck coefficients of the first electrode (310) and the second electrode (320) are different, and the first electrode (310), the second electrode (320) and the driving chip (100) can form a closed loop together. The driver chip (100) includes: Thermocouple voltage processing module (110) is used to analyze the electromotive force generated by the closed loop formed by the first electrode (310), the second electrode (320) and the driving chip (100) and convert it into temperature information; The touch processing module (120) is electrically connected to the thermocouple voltage processing module (110), and the touch processing module (120) is electrically connected to the active area (210); The driving chip (100) is used to perform temperature compensation on the contact coordinates collected by the active area (210) based on the temperature information measured by the thermocouple detection module (300).

2. The touch panel according to claim 1, characterized in that, The first electrode (310) includes a first end (311) and a second end (312) disposed along its own length direction; the first end (311) is electrically connected to the driving chip (100); The second electrode (320) includes a third end (321) and a fourth end (322) disposed along its own length direction; the third end (321) is electrically connected to the second end (312); the fourth end (322) is electrically connected to the driver chip (100).

3. The touch panel according to claim 2, characterized in that, The non-active area (220) is constructed with a binding part (221), and the binding part (221) is provided with a first connection terminal (2211) and a second connection terminal (2212) at intervals. The driver chip (100) has a third connection terminal and a fourth connection terminal spaced apart on the side near the substrate (200); One end of the first connecting terminal (2211) is electrically connected to the first end (311), and the other end of the first connecting terminal (2211) is electrically connected to the third connecting terminal; One end of the second connection terminal (2212) is electrically connected to the fourth terminal (322), and the other end of the second connection terminal (2212) is electrically connected to the fourth connection terminal.

4. The touch panel according to claim 2, characterized in that, The first electrode (310) and the second electrode (320) are disposed on the same layer of the substrate (200).

5. The touch panel according to claim 4, characterized in that, The substrate (200) includes a receiving electrode layer (230) and a transmitting electrode layer (240) stacked together. The first electrode (310) and the second electrode (320) are both disposed on the receiving electrode layer (230); or the first electrode (310) and the second electrode (320) are both disposed on the transmitting electrode layer (240).

6. The touch panel according to any one of claims 2-5, characterized in that, The second end (312) and the third end (321) are bonded together using conductive silver adhesive.

7. A touch display panel, characterized in that, The touch panel includes any one of claims 1-6, and further includes a display panel (400) located on the touch panel.

8. A display device, characterized in that, The device includes the touch display panel of claim 7, and also includes a host (700), which is electrically connected to the driver chip (100), and the driver chip (100) is capable of transmitting the touch coordinates collected by the active area (210) to the host (700).

9. The display device according to claim 8, characterized in that, The driving chip (100) is used to perform temperature compensation on the contact coordinates collected by the active area (210) based on the temperature information measured by the thermocouple detection module (300), and transmit the temperature-compensated contact coordinates to the host (700).

10. The display device according to claim 8 or 9, characterized in that, The driver chip (100) is also provided with an overheat protection module (130); the overheat protection module (130) is electrically connected to the active area (210); When the temperature of the non-active zone (220) measured by the thermocouple detection module (300) is higher than a first preset value, the overheat protection module (130) can control the active zone (210) to suspend operation; or When the temperature of the non-active zone (220) measured by the thermocouple detection module (300) is lower than the second preset value, the overheat protection module (130) can control the active zone (210) to stop operating.

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