A display device

Abstract

The application discloses a display device, belonging to the technical field of display, which comprises a driving circuit and a display panel electrically connected to the driving circuit. The display panel comprises at least a conductive layer located in a display area. The conductive layer receives a second signal generated by the driving circuit in a detection mode, so that the driving circuit detects the temperature of the display area. By setting the conductive layer in the display area and detecting the temperature of the display panel through the conductive layer in the detection mode, the display and temperature detection can be realized without significantly increasing the complexity of the panel structure, the panel integration is improved, and the display stability and temperature monitoring accuracy are improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display device. Background Technology

[0002] In the field of smart terminals, embedded touch technology has been widely used. The self-heating of the display panel during operation and the changes in the external ambient temperature can significantly affect the display quality and device lifespan. Therefore, effective monitoring of the display panel temperature has become an important requirement.

[0003] Currently, among the temperature monitoring solutions for display panels, external sensor solutions are relatively mature, but the monitoring results are delayed. While edge-mounted sensor solutions reduce space occupation, they cannot reflect the temperature inside the display area. Preliminary in-screen integrated sensor solutions use thin-film transistor devices for indirect temperature monitoring, which is easily affected by display drive signals, resulting in limited monitoring accuracy. Alternatively, integrating independent sensing elements in the pixel area would occupy pixel space and increase manufacturing complexity.

[0004] Therefore, how to effectively monitor the temperature of a display panel without making significant changes to its core structure and manufacturing process has become a pressing technical problem in this field. Summary of the Invention

[0005] A display device is provided that aims to achieve display and temperature detection without significantly increasing the complexity of the panel structure, and to improve display stability and temperature monitoring accuracy.

[0006] To achieve the above objectives, a display device is provided, having a display mode and a detection mode, including: The driving circuit is used to generate the second signal; The display panel is electrically connected to the driving circuit and is used to display an image in the display area in the display mode; The display panel includes a conductive layer located at least in the display area, the conductive layer being used to receive the second signal in the detection mode so that the driving circuit can detect the temperature of the display area.

[0007] The above technical solution achieves temperature detection of the display area by receiving a second signal in the detection mode through the conductive layer located in the display area. This allows for both display and temperature detection functions without requiring significant modifications to the core structure of the panel, reducing the space occupation and process complexity caused by additional sensor settings, and improving the integration of the display device and the accuracy of temperature monitoring. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0009] Figures 1 to 3 , Figure 9 This is a schematic diagram of the structure of a display device according to an exemplary embodiment of the present disclosure; Figure 4 This is a schematic diagram illustrating the connection relationship between the conductive layer and the driving circuit in an exemplary embodiment of this disclosure; Figure 5 and Figure 6 , Figure 10 and Figure 11 This is an equivalent circuit diagram for implementing the display mode and detection mode in a display device according to an exemplary embodiment of the present disclosure; Figure 7 and Figure 12 This is a timing diagram of some signals in a display device according to an exemplary embodiment of the present disclosure; Figure 8 This is a block diagram illustrating the signal transmission of a display device according to an exemplary embodiment of the present disclosure.

[0010] Explanation of icon numbers: 100. Display device; 10. Driving circuit; 101. Detection driving module; 102. Display driving module; 1011, First voltage unit; 1012, Second voltage unit; 1013, Switching unit; 1014. Detection unit; 1015. Integrating unit; 10141. Signal conversion subunit; 10142. Algorithm processing subunit; R1 is the first resistive element; R2 is the second resistive element; C; Integrating capacitor; R3; Integrating resistor; Y operational amplifier; 20. Display panel; 201. Conductive layer; 2011. Conductive part; 20111. First end; 20112. Second end; 202. Data line; 203. Common electrode; 204. Power line; 205. Fan-shaped trace section; 206. Gate line; 207. Sub-pixel; 208. Gate driving unit; 209. Signal transmission section; A, Display area; NA, Non-display area; Sg1, first signal; Sg2, second signal; Gate, gate signal; Data, data signal; Vcom, common voltage signal; Vs, power supply voltage signal; V1, first voltage signal; V2, second voltage signal; Vin, the first terminal signal; Vout, the second terminal signal; t1, reset period; t2, detection period.

[0011] The realization of the objectives, functional features and advantages of the embodiments of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0012] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0013] Furthermore, descriptions involving "first," "second," etc., in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0014] This application provides a display device.

[0015] In some embodiments, combined with Figures 1 to 3 As shown, the display device 100 has a display mode and a detection mode, including: a driving circuit 10 for generating a first signal Sg1 and a second signal Sg2; and a display panel 20 electrically connected to the driving circuit 10, including a conductive layer 201 at least located in the display area A. The conductive layer 201 is used to receive the first signal Sg1 in the display mode so that the display area A displays an image, and the conductive layer 201 is also used to receive the second signal Sg2 in the detection mode so that the driving circuit 10 detects the temperature of the display area A.

[0016] The display panel 20 can be a self-emissive display panel 20, meaning that the display panel 20 displays images through the self-illumination of multiple light-emitting elements. The display panel 20 can also be a liquid crystal display panel 20, meaning that the display panel 20 displays images through the combined operation of a liquid crystal layer and a backlight.

[0017] Specifically, in combination Figure 1 , Figures 8 to 10 As shown, the display panel 20 may further include: a plurality of sub-pixels 207 located within the display area A; cascaded multi-level gate driving units 208, each gate driving unit 208 being electrically connected between a timing control unit (not shown, but included in the driving circuit 10) and the corresponding plurality of sub-pixels 207, for outputting gate signals Gate transmitted to the corresponding plurality of sub-pixels 207; and at least one source driving unit (not shown, but may be included in the display panel 20 or the driving circuit 10), each source driving unit being electrically connected between a timing control unit and the corresponding plurality of sub-pixels 207, for outputting data signals Data transmitted to the corresponding plurality of sub-pixels 207.

[0018] This example illustrates the arrangement of multiple sub-pixels 207 in an array, with n rows of sub-pixels 207, where n is a positive integer greater than 1.

[0019] Each gate driving unit 208 is controlled by a timing control unit to generate a corresponding level gate signal Gate. The first level gate signal Gate 1 to the nth level gate signal Gate n transmitted by the n gate lines 206 are used to turn on the corresponding row of sub-pixels 207. The n gate pulses can be arranged sequentially on the time axis to turn on the n rows of sub-pixels 207 sequentially in time. In display mode, the source drive unit can be controlled by the timing control unit to generate multiple data signals Data that are output to multiple columns of sub-pixels 207 through multiple data lines 202. Each data signal Data can include multiple data voltages corresponding to multiple sub-pixels 207 in the same column. When each row of sub-pixels 207 is turned on, the multiple data lines 202 transmit multiple data voltages required by the multiple sub-pixels 207 in that row. This allows the multiple data voltages to act on the multiple sub-pixels 207 in that row to realize the display function of the multiple sub-pixels 207 in that row. Similarly, in each frame F, the display function of all rows of sub-pixels 20710 can be realized in time to present the complete picture of that frame.

[0020] Based on the above, this embodiment can be understood as follows: In display mode, the driving circuit 10 outputs a first signal Sg1 to the display panel 20. The first signal Sg1 is used to drive the conductive layer 201 to participate normally in the screen display process. That is, the conductive layer 201 can be used as part of the display driving link in display mode. After receiving the first signal Sg1, it enables each sub-pixel 207 in the display area A to work according to the preset image data, thereby completing the screen display. In detection mode, the driving circuit 10 outputs a second signal Sg2 to the display panel 20. The second signal Sg2 is used to cause the conductive layer 201 to enter the temperature detection state. That is, the conductive layer 201 receives the second signal Sg2 in detection mode and generates a temperature-related electrical response, such as changes in resistance value, impedance value, voltage response or current response. Since the conductive layer 201 is located in the display area A, the driving circuit 10 can calculate the temperature of the display area A based on the received response signal, thereby realizing the detection of the temperature of the display area A.

[0021] The conductive layer 201 located within the display area A can be disposed in a film layer with good conductivity in the display panel 20, such as a metal layer or a transparent electrode layer. The conductive layer 201 may include a continuous conductive trace, multiple segmented conductive areas, a mesh-like conductive structure, or other conductive patterns suitable for covering the display area A.

[0022] The first signal Sg1 may include at least one of the above-mentioned gate signal Gate, the above-mentioned data signal Data, the signal for generating the above-mentioned gate signal Gate, the signal for generating the above-mentioned data signal Data, and the signal for enabling the pixel circuit corresponding to the above-mentioned sub-pixel 207 to operate normally, which is intended to illustrate that the participation of the first signal Sg1 is required in the display mode for the display area A to display the screen.

[0023] Understandably, this embodiment sets a conductive layer 201 in the display panel 20 and reuses it to receive different signals in display mode and detection mode. By cooperating with the existing driving architecture such as the gate driving unit 208 and the source driving unit, the functions of display driving and temperature detection are reused. Therefore, there is no need to configure an independent sensor in the display area A, nor is it necessary to make significant changes to the core structure and process of the panel. Furthermore, since the conductive layer 201 is located inside the display area A, it can more accurately reflect the actual temperature state of the display area A and reduce the deviation caused by the measurement of the edge area.

[0024] In some embodiments, combined with Figures 1 to 3As shown, the display panel 20 includes multiple data lines 202, at least one common electrode 203, and multiple power lines 204 located in the display area A. The conductive layer 201 includes at least one of the data lines 202, the common electrode 203, and the power lines 204. When the conductive layer 201 includes the data lines 202, the first signal Sg1 includes the data signal Data received by the data lines 202 in the display mode. When the conductive layer 201 includes the common electrode 203, the first signal Sg1 includes the common voltage signal Vcom received by the common electrode 203 in the display mode. When the conductive layer 201 includes the power lines 204, the first signal Sg1 includes the power voltage signal Vs received by the power lines 204 in the display mode. In the display mode, the data signal Data, the common voltage signal Vcom, and the power voltage signal Vs are all used to display an image in the display area A.

[0025] That is, the conductive layer 201 in this application is not limited to a single fixed structure, but can be any conductive part 2011 in the display panel 20 that participates in display driving. Specifically, it can include at least one of the data line 202, the common electrode 203 and the power line 204. By reusing the function of the conductive structure, it can participate in screen display in display mode and participate in temperature detection in detection mode.

[0026] The conductive layer 201 can be configured in ways including, but not limited to, the following: Method 1: The conductive layer 201 may include a data line 202. The data line 202 is generally used to transmit the data signal Data output by the source driving unit to the corresponding multiple sub-pixels 207. The data signal Data may include multiple data voltages. Different data voltages correspond to different brightness levels. The display state of the corresponding multiple sub-pixels 207 is controlled by each data signal Data, so that the display area A presents a frame of the picture. Since the data line 202 itself is a key component in the display driving link, by configuring it to transmit the data signal Data (i.e., the first signal Sg1) in display mode and receive the second signal Sg2 in detection mode and generate a temperature-related electrical response for the driving circuit 10 to detect temperature changes, the temperature of the display area A can be detected without configuring a separate sensor in the display area A. In method 2, the conductive layer 201 may include a common electrode 203. The common electrode 203 is generally used at least in the liquid crystal display panel 20 to form an electric field in conjunction with the pixel electrode, or in the self-emissive display panel 20 as the cathode of the light-emitting element. The common voltage signal Vcom applied to the common electrode 203 is a reference voltage signal required to maintain the display drive. For the liquid crystal display panel 20, its function is to establish a predetermined potential difference between the common electrode 203 and the pixel electrode to ensure that each sub-pixel 207 in the display area A can display the image normally. For the self-emissive display panel 20, it is used to provide a reference potential for the light-emitting element to ensure that each sub-pixel 207 in the display area A can emit light normally and display the image. Since the common electrode 203 itself participates in the operation during the screen display process, by configuring it to transmit the common voltage signal Vcom (i.e. the first signal Sg1) in the display mode, and to receive the second signal Sg2 and generate a temperature-related electrical response in the detection mode for the drive circuit 10 to detect temperature changes, the temperature of the display area A can be detected without configuring an independent sensor in the display area A. Method 3: The conductive layer 201 may include a power line 204. The power line 204 is generally used to provide working voltage to the pixel circuit or other functional circuits to ensure the stable operation of the display panel 20, so that multiple sub-pixels 207 present the corresponding display state according to the corresponding data voltage to realize the display of the screen and provide a guarantee for the display of the screen. Since the power line 204 itself runs through the display area A and provides power to the corresponding circuit, by configuring it to transmit the power supply voltage signal Vs (i.e., the first signal Sg1) in display mode, and to receive the second signal Sg2 and generate a temperature-related electrical response in detection mode for the drive circuit 10 to detect temperature changes, the temperature of the display area A can be detected without configuring an independent sensor in the display area A.

[0027] In some embodiments, combined with Figures 1 to 3As shown, the conductive layer 201 includes at least one conductive portion 2011, and different conductive portions 2011 are electrically disconnected; the conductive layer 201 includes the data line 202, and each conductive portion 2011 includes one data line 202; and / or, the conductive layer 201 includes the common electrode 203. When the number of the common electrode 203 is 1, the number of conductive portions 2011 is also 1, and each conductive portion 2011 includes one common electrode 203. When the number of the common electrodes 203 is greater than 1, each conductive portion 2011 includes one common electrode 203 or multiple electrically connected common electrodes 203, and the number of common electrodes 203 in different conductive portions 2011 may be the same or different; and / or, the conductive layer 201 includes the power line 204, and each conductive portion 2011 includes one power line 204 or multiple electrically connected power lines 204, and the number of power lines 204 in different conductive portions 2011 may be the same or different.

[0028] Understandably, while the conductive layer 201 functions as a whole for time-sharing display and temperature detection, structurally it is not necessarily a continuously conductive unit. Instead, it can be divided into multiple electrically isolated conductive parts 2011. Each conductive part 2011 can be electrically disconnected through gaps, insulating intervals, or other electrical isolation methods, allowing different conductive parts 2011 to transmit signals independently.

[0029] It is important to note that whether the conductive layer 201 comprises only one conductive portion 2011 or can be divided into multiple electrically isolated conductive portions 2011, it should satisfy the transmission function of the first signal Sg1 of the conductive layer 201 in display mode, enabling it to transmit at least one of the data signal Data, the common voltage signal Vcom, and the power supply voltage signal Vs used for screen display, thereby not affecting the normal display of the display area A. In other words, the specific division of the conductive layer 201 should not undermine its fundamental function as a conductive structure for display driving.

[0030] When the conductive layer 201 uses the data line 202 as the multiplexing object, reference Figure 2 As shown, in order to ensure that each column of sub-pixels 207 receives its own data signal Data, each data line 202 needs to be an independent conductive part 2011. Different data lines 202 are electrically disconnected (i.e., there is no direct short-circuit conductive relationship between different data lines 202), so that each data line 202 transmits the data voltage of the corresponding column of sub-pixels 207 in display mode, and participates in temperature detection as an independent response unit (i.e. conductive part 2011) in detection mode. The driving circuit 10 can detect a single data line 202 or combine multiple data lines 202 for sampling as needed.

[0031] When the conductive layer 201 uses the common electrode 203 as the reuse object, the following two cases need to be considered: If the common electrode 203 is a single film layer continuously disposed across the entire surface, unlike... Figure 2 and Figure 3 As shown, a common electrode 203 itself constitutes a conductive part 2011, and the conductive layer 201 also includes only this entire surface of the common electrode 203 as the only conductive part 2011. The common electrode 203 covers most or all of the display area A and participates in display driving or temperature detection as a whole.

[0032] If there are multiple common electrodes 203, refer to Figure 2 or Figure 3 As shown, any conductive part 2011 may include a common electrode 203 or multiple common electrodes 203 electrically connected (that is, multiple common electrodes 203 are interconnected through wires, bridging portions, vias or other electrical connection structures to form an electrically integrated conductive unit, thereby jointly constituting a conductive part 2011). In other words, it can be arranged such that a single common electrode 203 corresponds to a single conductive part 2011, or it can be arranged such that multiple common electrodes 203 are electrically connected to jointly constitute a conductive part 2011. Furthermore, the number of common electrodes 203 included in different conductive parts 2011 can be the same or different, so that the common electrodes 203 can be flexibly configured according to the layout design, wiring layout, driving method, and temperature detection requirements of the display panel 20, thereby adapting to the structural implementation in different application scenarios.

[0033] When the conductive layer 201 uses the power line 204 as a reuse object, since the number of power lines 204 is greater than 1, the conductive part 2011 in the current case can be set up with reference to the setting method of the conductive part 2011 when the number of common electrodes 203 is greater than 1.

[0034] It should be noted that the above-mentioned "electrical connection" means that multiple common electrodes 203 or multiple power lines 204 form the same power supply network electrically, and can jointly receive and transmit the common voltage signal Vcom or the power supply voltage signal Vs. This means that although multiple common electrodes 203 or multiple power lines 204 are spatially distributed in different locations, they still belong to the same conductive part 2011 in function, which facilitates unified control and temperature detection.

[0035] As discussed above, in display mode, the data signal Data, the common voltage signal Vcom, and the power supply voltage signal Vs are all used to display the image in display area A. That is, the conductive layer 201 in this application is not a newly added structure simply for temperature detection, but directly selects the conductive part 2011 in the display panel 20 that is already used for display driving, and gives it a detection function on this basis. This allows the display function and the temperature monitoring function to be reflected on the same conductive structure, which reduces structural redundancy and facilitates compatibility with the existing driving architecture of the display panel 20.

[0036] In some embodiments, combined with Figures 1 to 3 As shown, the display panel 20 includes a plurality of fan-shaped traces 205 located in the non-display area NAA. The fan-shaped traces 205 are electrically connected to at least a plurality of corresponding data lines 202 for transmitting a plurality of corresponding data signals Data. The conductive part 2011 is electrically connected to the driving circuit 10 through the gap between two adjacent fan-shaped traces 205.

[0037] The fan-shaped trace section 205 can be understood as a trace structure used to transmit signals from the driving circuit 10 side to multiple data lines 202 at the edge of the display area A. Its overall layout is usually fan-shaped, radial, or gradually unfolding. Multiple fan-shaped trace sections 205 can be arranged sequentially along the edge of the display panel 20, and gaps can be set between adjacent fan-shaped trace sections 205 to avoid electrical interference or wiring conflicts between different traces. The specific shape, width, spacing, and unfolding angle of the fan-shaped trace section 205 can be adjusted according to the bezel width of the display panel 20, the number of data lines 202, the wiring density, and actual process conditions.

[0038] It is understood that the conductive part 2011 in this embodiment can also extend to the gap between two adjacent fan-shaped traces 205, and form an electrical connection with the driving circuit 10 side through the gap, so as to realize the signal transmission between the conductive part 2011 and the driving circuit 10 without affecting the normal fan-out function of the fan-shaped traces 205, thereby taking into account display driving, structural layout and temperature detection.

[0039] In some embodiments, combined with Figures 1 to 3 As shown, the conductive layer 201 is composed of at least one of metals, metal alloys, metal oxides, and thermosensitive polymers. That is, the conductive layer 201 is not limited to a single material, but can be composed of one or more materials depending on its specific function in the display panel 20.

[0040] For example, regarding the conductive part 2011 of the multiplexed data line 202, considering that the main requirements for the material of the data line 202 are low resistance, good conductivity, process compatibility and stability, the constituent material of the conductive part 2011 of the multiplexed data line 202 may include metal or metal alloy (e.g., at least one of aluminum, copper, silver, molybdenum, titanium, chromium, aluminum-titanium alloy, copper-molybdenum alloy).

[0041] For example, regarding the conductive part 2011 of the multiplexed common electrode 203, in the liquid crystal display panel 20, the conductive part 2011 of the multiplexed common electrode 203 can be made of a transparent conductive oxide material to ensure a balance between light transmittance and conductivity. In the self-emissive display panel 20, the conductive part 2011 of the multiplexed common electrode 203 can be made of a metal material or a metal alloy material to meet the requirements of conductivity and wiring.

[0042] For example, regarding the conductive part 2011 of the multiplexed power line 204, considering that the power line 204 needs to provide a stable power supply, its material can preferably be metal or metal alloy to reduce line resistance, reduce voltage drop and improve power supply reliability.

[0043] Furthermore, compared to data line 202 and power line 204, the common electrode 203 has lower requirements for high-speed and stable transmission, making it more suitable for incorporating a thermistor polymer. Of course, for all three, parts of the circuit can be made of thermistor polymer, or the circuit can be configured as a composite layer, where at least one film layer can be made of thermistor polymer, causing its resistance, impedance, or other electrical parameters to change significantly with temperature, thereby providing a more accurate temperature response signal for the drive circuit 10.

[0044] In some embodiments, combined with Figures 1 to 7 As shown, the conductive layer 201 includes at least one conductive portion 2011, the conductive portion 2011 including: a first end 20111 (transmitting a first end signal Vin), used to receive a first voltage signal V1 in both the display mode and the detection mode; a second end 20112 (transmitting a second end signal), used to receive the first signal Sg1 in the display mode, and also used to receive at least a second voltage signal V2 as the second signal Sg2 in the detection mode, the voltage value of the second voltage signal V2 being different from the voltage value of the first voltage signal V1; wherein, the voltage values ​​of the first voltage signal V1 and the second voltage signal V2 are used to determine the temperature of the display area A.

[0045] In display mode, the first terminal 20111 continuously receives the first voltage signal V1 to establish the normal bias state of the conductive part 2011, while the second terminal 20112 receives the first signal Sg1 for screen display, such as the data signal Data corresponding to the data line 202, the common voltage signal Vcom corresponding to the common electrode 203, or the power supply voltage signal Vs corresponding to the power supply line 204, to ensure that the display area A displays the screen normally.

[0046] In detection mode, the first terminal 20111 still receives the first voltage signal V1 to ensure that the working reference of the conductive part 2011 remains unchanged, while the second terminal 20112 switches to receive the second voltage signal V2. Since the voltage value of the second voltage signal V2 is different from the voltage value of the first voltage signal V1, a voltage difference state different from that in the display mode is formed between the two ends of the conductive part 2011, thereby causing the conductive part 2011 to produce a temperature-related electrical response change. The driving circuit 10 can determine the temperature of the display area A based on the difference between the first voltage signal V1 and the second voltage signal V2, the response signal of the conductive part 2011, and a preset electrical signal-temperature mapping relationship or calibration curve.

[0047] It is understandable that, since the first voltage signal V1 and the second voltage signal V2 constitute a set of reference potential conditions for temperature judgment in the detection mode, the difference in their voltage values ​​can be used to amplify the electrical response of the conductive part 2011 when the temperature changes, thereby improving the temperature detection sensitivity and measurement accuracy.

[0048] In some embodiments, combined with Figures 1 to 7 As shown, the driving circuit 10 includes: a detection driving module 101, used to provide the first voltage signal V1 and the second voltage signal V2; and a display driving module 102, used to provide the first signal Sg1; wherein, the first terminal 20111 is electrically connected to the detection driving module 101 in both the display mode and the detection mode to receive the first voltage signal V1; wherein, the second terminal 20112 is electrically connected to the display driving module 102 in the display mode to receive the first signal Sg1, and is also electrically connected to the detection driving module 101 in the detection mode to receive the second voltage signal V2.

[0049] In display mode, the display driving module 102 can output a first signal Sg1 for screen display to the second terminal 20112 based on information such as image data, refresh timing and display control commands (e.g., the data signal Data is the display signal during this period); at the same time, the detection driving module 101 can output a first voltage signal V1 to the first terminal 20111 to provide a stable reference potential or reference voltage for the conductive part 2011, so that the conductive part 2011 maintains a working state that is compatible with the display structure.

[0050] In detection mode, the display driver module 102 can stop outputting display signals to the second terminal 20112, or enter a standby state without affecting the detection process (e.g., the data signal Data is not a display signal during this period). At this time, the detection driver module 101 continues to output the first voltage signal V1 to the first terminal 20111, and outputs the second voltage signal V2 to the second terminal 20112 according to the temperature detection requirements. Since the voltage values ​​of the second voltage signal V2 and the first voltage signal V1 are different, different potential differences are formed between the two ends of the conductive part 2011, thereby causing the conductive part 2011 to produce a temperature-related response change. The detection driver module 101 can further collect this response change and, in conjunction with a preset electrical signal-temperature mapping relationship or calibration curve, determine the temperature of the display area A.

[0051] The detection driver module 101 and the display driver module 102 can be two independently configured functional modules, or they can be partially shared in hardware and work in a time-sharing manner in logic.

[0052] Specifically, combined Figures 1 to 7 As shown, the detection driving module 101 includes: a first voltage unit 1011 for providing the first voltage signal V1, electrically connected to the first terminal 20111; a second voltage unit 1012 for providing the second voltage signal V2; and a switching unit 1013 for controlling the second terminal 20112 to be electrically connected to the display driving module 102 in the display mode and to the second voltage unit 1012 in the detection mode.

[0053] The first voltage unit 1011 is used to output a stable first voltage signal V1 to the first terminal 20111, so that the first terminal 20111 maintains a predetermined reference potential in both display mode and detection mode. The first voltage unit 1011 can be a constant voltage output unit, a reference voltage source, or other circuit module capable of outputting a stable voltage.

[0054] The second voltage unit 1012 provides a second voltage signal V2 to the second terminal 20112. The second voltage unit 1012 can output a detection voltage (i.e., the potential of the second voltage signal V2) that is different from the reference potential according to the temperature detection requirements, so that the conductive part 2011 forms a temperature-related response change in the detection mode. The second voltage unit 1012 may include an adjustable voltage source, a pulse voltage output module, a voltage divider module, or other circuit units suitable for outputting the detection voltage.

[0055] The switching unit 1013 is used to switch the electrical connection object of the second terminal 20112 in different modes. In display mode, the switching unit 1013 switches the second terminal 20112 to electrically connect to the display driver module 102 to receive the first signal Sg1 for screen display; in detection mode, the switching unit 1013 switches the second terminal 20112 to electrically connect to the second voltage unit 1012 to receive the second voltage signal V2 as the second signal Sg2. The switching unit 1013 can be implemented using an analog switch, an electronic switch, a transistor switch array, or other devices capable of changing the electrical connection path under different control signals.

[0056] In some embodiments, combined with Figures 1 to 7 As shown, the detection mode includes a reset period t1 and a detection period t2 following the reset period t1; wherein, the switching unit 1013 is used to control the second terminal 20112 to be electrically connected to the first voltage unit 1011 during the reset period t1 and to be electrically connected to the second voltage unit 1012 during the detection period t2.

[0057] That is, before entering the actual temperature detection, the potential state of the conductive part 2011 is initialized or stabilized through the reset period t1, and then the temperature detection is performed in the detection period t2, thereby improving the accuracy and consistency of the detection results.

[0058] Specifically, during the reset period t1, the switching unit 1013 switches the second terminal 20112 to be electrically connected to the first voltage unit 1011 to receive the first voltage signal V1, so as to perform electrical reset, signal zeroing, bias reset or state clearing on the conductive part 2011, so as to reduce the influence of the previous display cycle, the previous detection cycle or other interference factors on the current detection result, and make the conductive part 2011 reach a more stable initial condition before entering the detection period t2.

[0059] After the reset period t1 ends, the switching unit 1013 switches the second terminal 20112 to electrically connect the second voltage unit 1012 to receive the second voltage signal V2 as the second signal Sg2, so that a new potential difference or response condition related to temperature is formed between the two ends of the conductive part 2011. The driving circuit 10 can then sample the electrical response of the conductive part 2011 during the detection period t2 and determine the temperature of the display area A based on the electrical response.

[0060] In some embodiments, combined with Figure 4 , Figure 5 and Figure 7 As shown, the detection drive module 101 further includes a detection unit 1014, and the second voltage unit 1012 includes a resistive element electrically connected to the detection unit 1014 (for example, the other end of the resistive element can be grounded); wherein, the detection unit 1014 is used to be electrically connected to the second terminal 20112 through the switch unit 1013 in the detection mode, so as to determine the temperature of the display area A according to the voltage signal of the second terminal 20112 (i.e., the second terminal signal Vout mentioned above).

[0061] Furthermore, during the reset period t1, the first voltage unit 1011 is electrically connected to the second terminal 20112 via the switch unit 1013 to provide a first voltage signal V1 to initialize or stabilize the potential state of the conductive part 2011; during the detection period t2, the detection unit 1014 is electrically connected to the second terminal 20112 via the switch unit 1013 to determine the temperature of the display area A based on the voltage signal of the second terminal 20112 (i.e., the second terminal signal Vout mentioned above).

[0062] That is, the detection unit 1014 can be used to collect, compare, analyze and calculate the voltage signal output or feedback of the second terminal 20112 during the detection period t2. The second terminal signal Vout can reflect the electrical response state of the conductive part 2011 under the current temperature conditions, such as the change in equivalent resistance, impedance, voltage drop or node potential of the conductive part 2011. Since the electrical characteristics of the conductive part 2011 will change with temperature, the detection unit 1014 can determine the temperature value of the display area A based on the voltage signal of the second terminal 20112, the preset electrical signal-temperature mapping relationship or calibration curve.

[0063] For ease of description, the conductive part 2011 is equivalent to the first resistive element R1, and the aforementioned resistive element is the second resistive element R2. The resistance values ​​of the two are r1 and r2, respectively. The voltage values ​​of the second terminal signal Vout and the first voltage signal V1 during the detection period t2 are vout and v1, respectively, for example.

[0064] like Figure 5As shown, during the detection period t2, the second terminal 20112 is electrically connected to the second voltage unit 1012. At this time, the first voltage unit 1011 forms a voltage divider detection circuit with the conductive layer 201 through the second resistive element R2. The detection unit 1014 samples the signal Vout of the second terminal and can detect it according to the voltage divider relationship (i.e., r1=r2). (v1-vout) / vout) deduces the resistance value r1 of the first resistive element R1. When vout is detected by the detection unit 1014 and r2 and v1 are known, r1 can be obtained. The detection unit 1014 then combines the pre-established resistance-temperature correspondence to further determine the temperature of the display area A.

[0065] In some embodiments, combined with Figure 4 , Figure 6 and Figure 7 As shown, the detection drive module 101 further includes a detection unit 1014. The second voltage unit 1012 includes an integration unit 1015 electrically connected to the detection unit 1014. The output terminal of the integration unit 1015 is electrically connected to the detection unit 1014. The first input terminal of the integration unit 1015 (e.g., the inverting input terminal of an operational amplifier) ​​is used to be electrically connected to the second terminal 20112 via the switch unit 1013 in the detection mode, so that the detection unit 1014 determines the temperature of the display area A based on the current signal of the output terminal of the integration unit 1015.

[0066] The integration unit 1015 can be used during the detection period t2 to integrate, accumulate, or perform charge conversion processing on the current signal from the second terminal 20112, thereby converting the current change related to the temperature of the conductive part 2011 into an output signal that is easier to acquire and process. Specifically, since the electrical characteristics of the conductive layer 201 change with temperature, when the first input terminal of the integration unit 1015 (e.g., the inverting input terminal of an operational amplifier) ​​is electrically connected to the second terminal 20112 through the switching unit 1013 during the detection period t2, the current signal output by the second terminal 20112 can change with the temperature of the display area A. The integration unit 1015 can then integrate this current signal and generate a corresponding output signal at its output terminal for the detection unit 1014 to read.

[0067] By introducing the integration unit 1015, the detection drive module 101 can convert short-term or fluctuating current changes into a more stable cumulative quantity, thereby improving the anti-interference capability and measurement accuracy of temperature detection.

[0068] like Figure 6As shown, the integration unit 1015 may include an integrating capacitor C, an integrating resistor R3, and an operational amplifier Y. The integrating capacitor C and the integrating resistor R3 are connected in parallel, and both are connected between the inverting input terminal - of the operational amplifier Y (i.e., the first input terminal of the integration unit 1015) and the output terminal of the operational amplifier Y (i.e., the output terminal of the integration unit 1015). The non-inverting input terminal + of the operational amplifier Y (i.e., the second input terminal of the integration unit 1015) can be connected to the third voltage unit to receive the third voltage signal (according to the virtual short, its voltage value is equal to the voltage value of the inverting input terminal - of the operational amplifier Y, i.e., v2).

[0069] For ease of description, this example uses the following: the resistance of the integrating resistor R3 is r3, the capacitance of the integrating capacitor C is c, and during the detection period t2, the voltage values ​​of the second terminal signal Vout, the first voltage signal V1, the positive input terminal + of the operational amplifier Y, the inverting input terminal - of the operational amplifier Y, and the inverting output terminal of the operational amplifier Y are vout, v1, v+, v-, and vo, respectively.

[0070] During the reset period, the charge of the integrating capacitor C is cleared, and the voltage vo output by the operational amplifier Y is preset to the initial voltage (voltage value is vinit) to eliminate the measurement error caused by the residual charge of the previous sampling. During the detection phase, the current to be measured (current value is i) is integrated within a fixed integration time t0, ignoring the shunting effect of the feedback resistor. Since i=(v1-v2) / r1, the voltage vo(t0) output by the operational amplifier Y at the end of the integration is obtained by definite integration: vo(t0)=vinit-T×i / c. The current to be measured is calculated in reverse: i=[vinit-vo(t0)] / t0×c. With v1, v2, vinit, and vo(t0) known, the resistance value r1 of the first resistor element R1 can be calculated, i.e., r1=[(v1-v2)×t0] / {[vinit-vo(t0)]×c}. The detection unit 1014 then combines the pre-established resistance-temperature correspondence to further determine the temperature of the display area A.

[0071] Understandably, the output of the integrator 1015 can output a signal related to the accumulated charge, integrated voltage, or integrated current, and the detection unit 1014 can determine the temperature of the display area A based on this output signal. Compared to directly sampling the instantaneous voltage, integral detection can reduce the impact of transient noise, switching jitter, and display drive interference on the detection results, thereby improving the stability of temperature detection.

[0072] Furthermore, such as Figure 8As shown, the detection unit 1014 may include a signal conversion subunit 10141 and an algorithm processing subunit 10142. The temperature within the display area A changes the equivalent resistance of the conductive part 2011, thereby generating an analog electrical signal that changes with temperature. This signal is transmitted to the signal conversion subunit 10141 in the detection unit 1014 (which may integrate an operational amplifier Y, an analog-to-digital converter, etc. The operational amplifier Y first amplifies and integrates the weak analog electrical signal, and then the analog-to-digital converter converts the continuously changing analog electrical signal into a corresponding digital electrical signal). The algorithm processing subunit 10142 has a pre-built electrical signal-temperature mapping relationship or calibration curve. It completes the functional mapping between the measured electrical signal and the actual physical temperature using a preset fitting formula. Specifically, the mapping formula in this embodiment is T = A × X + B × e. cx T is the temperature of the conductive part 2011, X is the value of the digital electrical signal mentioned above, and A, B, and C are fixed fitting coefficients obtained after calibration. The above process completes the conversion from electrical measurement quantity to physical temperature quantity.

[0073] In some embodiments, combined with Figures 1 to 8 As shown, the conductive layer 201 includes a plurality of conductive portions 2011; wherein, the number of detection driving modules 101 is the same as the number of conductive portions 2011, and the detection driving module 101 is used to electrically connect with the corresponding conductive portion 2011 in the detection mode; or, the number of detection driving modules 101 is less than the number of conductive portions 2011, and the detection driving module 101 is used to electrically connect with the corresponding plurality of conductive portions 2011 in a time-division manner in the detection mode.

[0074] When the number of detection drive modules 101 is the same as the number of conductive parts 2011, an independent detection path is configured for each conductive part 2011. Each detection drive module 101 synchronously or in parallel electrically connects and detects each conductive part 2011 in detection mode. This method improves the detection independence between different conductive parts 2011, reduces mutual interference, and achieves higher spatial resolution, thereby reflecting the temperature distribution at different locations in display area A more precisely.

[0075] When the number of detection driving modules 101 is less than the number of conductive parts 2011, the detection driving modules 101 can be connected to multiple conductive parts 2011 through time-division multiplexing. In detection mode, the detection driving modules 101 can sequentially switch to different conductive parts 2011 according to a predetermined timing sequence to perform time-division detection on each conductive part 2011. This method eliminates the need to configure an independent detection channel for each conductive part 2011, thus completing the temperature detection of multiple conductive parts 2011, reducing the number of detection driving modules 101, reducing wiring resource consumption, and simplifying the overall structure of the display panel 20 to a certain extent.

[0076] The conductive parts 2011 can be divided according to display area A, layout, functional area, or heat distribution area. For a large display panel 20, if multiple conductive parts 2011 are arranged in different areas, independent detection or time-sharing detection can be selected according to actual needs. For example, when higher temperature resolution is required, a one-to-one configuration of detection drive module 101 and conductive part 2011 can be used; when more attention is paid to the overall average temperature or system cost, multiple conductive parts 2011 can be connected to the detection drive module 101 in a time-sharing manner to reduce hardware costs while ensuring basic detection capabilities.

[0077] Furthermore, under the aforementioned time-division connection method, the detection drive module 101 can sequentially connect to different conductive parts 2011 according to the frame period, line period, or preset detection period, thereby acquiring temperature information of different conductive parts 2011 in adjacent detection periods.

[0078] Of course, in the above one-to-one correspondence and simultaneous connection method, each detection driving module 101 can be electrically connected to its corresponding conductive part 2011 according to the frame period, line period or preset detection period, so as to obtain the temperature information of the conductive part 2011 in each detection period.

[0079] Within a preset time period, by using the above two methods, the detection results of each conductive part 2011 can be comprehensively analyzed, and the temperature distribution of the display area A can be further estimated, providing a basis for display compensation, brightness adjustment or over-temperature protection.

[0080] In some embodiments, combined with Figure 7 and Figure 8As shown, the preset time period may include at least one frame F. After the temperature measurement of display area A is completed during the preset time period, the temperature data can be output to the display driver module 102. The display driver module 102 retrieves the preset temperature compensation algorithm, brightness adjustment algorithm, gamma correction algorithm or other compensation strategy according to the current temperature data, and generates a drive control signal adapted to the current temperature conditions. Then, it issues a drive display feedback command to perform real-time correction and compensation on data voltage, power supply voltage, common voltage, etc., thereby eliminating display unevenness, color shift, touch failure and other adverse problems caused by temperature drift, and finally realizing closed-loop adaptive compensation control of display based on temperature sensing.

[0081] This application provides a display device.

[0082] Unlike the embodiments discussed above, such as Figure 9 As shown, the display panel 20 in this embodiment further includes at least one signal transmission unit 209 located at least in the display area A (which may include, but is not limited to, a simple data line 202, a common electrode 203, or a power line 204 that does not have the above-mentioned multiplexing as a conductive part 2011). The signal transmission unit 209 is used to receive the first signal in the display mode so that the display area A displays a screen.

[0083] That is, in this embodiment, the signal transmission unit 209 is not reused for temperature detection. Instead, a conductive layer 201, which is independent of the data line 202, the common electrode 203 and the power line 204, is set separately for temperature detection. However, since it is located in the display area A, the integration of the display device 100 and the accuracy of temperature monitoring can also be improved.

[0084] Similarly, the conductive layer 201 in this embodiment includes at least one conductive portion 2011. When there are multiple conductive portions 2011, the different conductive portions 2011 are electrically disconnected.

[0085] Among them, combined Figures 9 to 12 As shown, the conductive part 2011 includes: a first terminal 20111, used to receive a first voltage signal V1 in both the display mode and the detection mode; a second terminal 20112, used to receive the first voltage signal V1 in the display mode, and also used to receive at least a second voltage signal V2 as the second signal Sg2 in the detection mode, wherein the voltage value of the second voltage signal V2 is different from the voltage value of the first voltage signal V1; wherein the voltage values ​​of the first voltage signal V1 and the second voltage signal V2 are used to determine the temperature of the display area A.

[0086] Understandable, unlike Figures 2 to 7In the embodiment shown, since the signal transmission unit 209 is not reused for temperature detection, but a separate conductive layer 201 is provided, the conductive layer 201 is not used to transmit the first signal Sg1 to control the screen display in the display mode.

[0087] Specifically, in this embodiment, both the first end 20111 and the second end 20112 of the conductive part 2011 receive the first voltage signal V1 in the display mode, so that there is no voltage difference between them, thereby not interfering with the first signal Sg1 transmitted by the signal transmission part 209 which is also located in the display area A, thereby reducing interference with the screen display.

[0088] Correspondingly, combined Figures 8 to 11 As shown, in this embodiment, the driving circuit 10 includes: a detection driving module 101, used to provide the first voltage signal V1 and the second voltage signal V2; and a display driving module 102, used to provide the first signal Sg1; wherein, the first terminal 20111 is electrically connected to the detection driving module 101 in both the display mode and the detection mode to receive the first voltage signal V1; wherein, the second terminal 20112 is electrically connected to the detection driving module 101 in the display mode to receive the first voltage signal V1, and is also electrically connected to the detection driving module 101 in the detection mode to at least receive the second voltage signal V2.

[0089] That is, in this embodiment, the second terminal 20112 is electrically connected to the detection driving module 101 in display mode, but the signals obtained are the first voltage signal V1 and the second voltage signal V2, respectively.

[0090] Correspondingly, combined Figures 9 to 12 As shown, in this embodiment, the detection driving module 101 includes: a first voltage unit 1011, used to provide the first voltage signal V1, electrically connected to the first terminal 20111; a second voltage unit 1012, used to provide the second voltage signal V2; and a switching unit 1013, used to control the second terminal 20112 to be electrically connected to the first voltage unit 1011 in the display mode and to the second voltage unit 1012 in the detection mode.

[0091] That is, the difference between this embodiment and the previous embodiment is that the switch unit 1013 controls the second terminal 20112 to be electrically connected to the first voltage unit 1011 in display mode (instead of being electrically connected to the detection drive module 101 to obtain the first signal Sg1), and to be electrically connected to the second voltage unit 1012 in detection mode. Since the first terminal 20111 and the second terminal 20112 of the conductive part 2011 do not have a voltage difference in display mode (that is, the reset period t1 in the previous embodiment is realized), it is not necessary to receive the first voltage signal V1 on the second terminal 20112 for reset in detection mode.

[0092] For the specific circuit design in this embodiment, please refer to the relevant discussion above.

[0093] The above description is merely an optional embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A display device, characterized in that, It has display mode and detection mode, including: The driving circuit is used to generate the second signal; The display panel is electrically connected to the driving circuit and is used to display an image in the display area in the display mode; The display panel includes a conductive layer located at least in the display area, the conductive layer being used to receive the second signal in the detection mode so that the driving circuit can detect the temperature of the display area.

2. The display device according to claim 1, characterized in that, The driving circuit is also used to generate a first signal; The conductive layer is also used to receive the first signal in the display mode so that the display area displays an image.

3. The display device according to claim 2, characterized in that, The display panel includes multiple data lines, at least one common electrode, and multiple power lines located in the display area; the conductive layer includes at least one of the data lines, the common electrode, and the power lines. When the conductive layer includes the data line, the first signal includes the data signal received by the data line in the display mode; When the conductive layer includes the common electrode, the first signal includes the common voltage signal received by the common electrode in the display mode; When the conductive layer includes the power line, the first signal includes the power voltage signal received by the power line in the display mode; In the display mode, the data signal, the common voltage signal, and the power supply voltage signal are all used to enable the display area to display the image.

4. The display device according to claim 3, characterized in that, The conductive layer includes at least one conductive portion, and different conductive portions are electrically disconnected; The conductive layer includes the data line, and the conductive portion includes one of the data lines; and / or, The conductive layer includes the common electrode. When the number of the common electrode is 1, the number of the conductive portions is also 1, and each conductive portion includes one common electrode. When the number of the common electrodes is greater than 1, each conductive portion includes one common electrode or multiple electrically connected common electrodes. The number of common electrodes in different conductive portions may be the same or different; and / or, The conductive layer includes the power line, and the conductive portion includes one power line or multiple power lines electrically connected, wherein the number of power lines in different conductive portions may be the same or different.

5. The display device according to any one of claims 2 to 4, characterized in that, The conductive layer includes at least one conductive portion, and different conductive portions are electrically disconnected. The conductive portion includes: The first terminal is configured to receive a first voltage signal in both the display mode and the detection mode; The second terminal is configured to receive the first signal in the display mode and to receive at least a second voltage signal as the second signal in the detection mode, wherein the voltage value of the second voltage signal is different from the voltage value of the first voltage signal. The voltage values ​​of the first voltage signal and the second voltage signal are used to determine the temperature of the display area.

6. The display device according to claim 5, characterized in that, The driving circuit includes: The detection drive module is used to provide the first voltage signal and the second voltage signal; The display driver module is used to provide the first signal; The first terminal is electrically connected to the detection driving module in both the display mode and the detection mode to receive the first voltage signal; The second terminal is used to be electrically connected to the display driver module in the display mode to receive the first signal, and is also used to be electrically connected to the detection driver module in the detection mode to receive at least the second voltage signal.

7. The display device according to claim 6, characterized in that, The detection driving module includes: A first voltage unit is used to provide the first voltage signal and is electrically connected to the first terminal; The second voltage unit is used to provide the second voltage signal; A switching unit is used to control the second terminal to be electrically connected to the display driver module in the display mode and to the second voltage unit in the detection mode.

8. The display device according to claim 7, characterized in that, The detection mode includes a reset period and a detection period following the reset period; The switching unit is used to control the second terminal to be electrically connected to the first voltage unit during the reset period and to the second voltage unit during the detection period.

9. The display device according to claim 1, characterized in that, The driving circuit is also used to generate a first signal; The display panel further includes at least one signal transmission unit located at least in the display area, the signal transmission unit being used to receive the first signal in the display mode so that the display area displays an image.

10. The display device according to claim 9, characterized in that, The conductive layer includes at least one conductive portion, and different conductive portions are electrically disconnected. The conductive portion includes: The first terminal is configured to receive a first voltage signal in both the display mode and the detection mode; The second terminal is configured to receive the first voltage signal in the display mode and to receive at least a second voltage signal as the second signal in the detection mode, wherein the voltage value of the second voltage signal is different from the voltage value of the first voltage signal. The voltage values ​​of the first voltage signal and the second voltage signal are used to determine the temperature of the display area.

11. The display device according to claim 10, characterized in that, The driving circuit includes: The detection drive module is used to provide the first voltage signal and the second voltage signal; The display driver module is used to provide the first signal; The first terminal is electrically connected to the detection driving module in both the display mode and the detection mode to receive the first voltage signal; The second terminal is used to be electrically connected to the detection driving module in the display mode to receive the first voltage signal, and is also used to be electrically connected to the detection driving module in the detection mode to receive at least the second voltage signal.

12. The display device according to claim 11, characterized in that, The detection driving module includes: A first voltage unit is used to provide the first voltage signal and is electrically connected to the first terminal; The second voltage unit is used to provide the second voltage signal; A switching unit is used to control the second terminal to be electrically connected to the first voltage unit in the display mode and to the second voltage unit in the detection mode.

13. The display device according to claim 7 or 12, characterized in that, The detection drive module further includes a detection unit, and the second voltage unit includes a resistive element electrically connected to the detection unit; The detection unit is used to be electrically connected to the second terminal via the switching unit in the detection mode, so as to determine the temperature of the display area based on the voltage signal of the second terminal.

14. The display device according to claim 7 or 12, characterized in that, The detection drive module further includes a detection unit, and the second voltage unit includes an integration unit electrically connected to the detection unit, the output terminal of the integration unit being electrically connected to the detection unit; The first input terminal of the integration unit is electrically connected to the second terminal via the switching unit in the detection mode, so that the detection unit determines the temperature of the display area based on the current signal at the output terminal of the integration unit.

15. The display device according to claim 6 or 11, characterized in that, The conductive layer includes a plurality of the conductive portions; The number of detection driving modules is the same as the number of conductive parts, and the detection driving module is used to electrically connect with the corresponding conductive part in the detection mode; Alternatively, the number of detection driving modules is less than the number of conductive parts, and the detection driving modules are used to electrically connect to the corresponding plurality of conductive parts in a time-division manner in the detection mode.

16. The display device according to any one of claims 1 to 4, 9 to 12, characterized in that, The display panel includes multiple fan-shaped traces located in the non-display area. Each fan-shaped trace is electrically connected to at least a corresponding multiple data lines for transmitting multiple corresponding data signals. The conductive layer is electrically connected to the driving circuit through the gap between two adjacent fan-shaped traces.

17. The display device according to any one of claims 1 to 4, 9 to 12, characterized in that, The conductive layer is composed of at least one of metals, metal alloys, metal oxides, and thermosensitive polymers.

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