Display substrate and display apparatus

Abstract

A display substrate (70) and a display apparatus. The display substrate (70) comprises: a display region (10); and a peripheral region (20) located at the periphery of the display region (10). The display substrate (70) further comprises: a temperature sensing line (30); and a control circuit. The temperature sensing line (30) is located in the peripheral region (20), and the resistance of the temperature sensing line (30) changes with a change in the temperature around the temperature sensing line. The control circuit is coupled to the temperature sensing line (30), and is used for determining the temperature around the temperature sensing line (30) on the basis of a change in the resistance of the temperature sensing line (30).

Description

Display substrate and display device Technical Field

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

[0002] The properties of many materials in a display panel change with temperature. For example, the properties of liquid crystal molecules in a liquid crystal panel vary significantly with temperature. The response time of liquid crystal molecules is faster at high temperatures and slower at low temperatures, which results in different display quality at different temperatures. In liquid crystal panels and organic light-emitting diode panels, the shift register unit integrated on the panel is constructed using thin-film transistors. The properties of the semiconductor materials in thin-film transistors also vary significantly with temperature, which in turn affects the operation of the gate drive circuit and product reliability.

[0003] Summary of the Invention

[0004] An object of the present disclosure is to provide a display substrate and a display device.

[0005] In order to achieve the above objectives, the present disclosure provides the following technical solutions:

[0006] A first aspect of the present disclosure provides a display substrate, comprising: a display area and a peripheral area located around the display area; the display substrate further comprises:

[0007] a temperature sensing line, the temperature sensing line being located in the peripheral area, the resistance of the temperature sensing line varying with the temperature of the surrounding area;

[0008] A control circuit is coupled to the temperature sensing line and is used to determine the ambient temperature of the temperature sensing line according to a change in resistance of the temperature sensing line.

[0009] Optionally, the temperature sensing line includes a first end, a second end and a sensing part, the first end and the second end are respectively coupled to the control circuit, the sensing part is respectively coupled to the first end and the second end, the resistance of the sensing part is greater than the resistance of the first end, and the resistance of the sensing part is greater than the resistance of the second end.

[0010] Optionally, the sensing portion includes a plurality of sub-portions coupled in sequence, and the extension directions of two coupled sub-portions are different.

[0011] Optionally, the sensing portion includes at least one fold line structure, and the fold line structure includes two parallel first sub-parts and second sub-parts respectively coupled to ends located on the same side as the two first sub-parts.

[0012] Optionally, the sensing part adopts a serpentine routing design.

[0013] Optionally, the peripheral area includes a frame-sealing glue area, the frame-sealing glue area surrounds the display area, and at least a portion of the sensing portion is located between the frame-sealing glue area and the display area.

[0014] Optionally, the display substrate further includes a shift register unit, and an orthographic projection of at least part of the sensing portion on the base substrate of the display substrate is located between the orthographic projection of the shift register unit on the base substrate and the display area.

[0015] Optionally, the display substrate includes a conductive film layer, and the temperature sensing line and the conductive film layer are provided in the same layer and made of the same material.

[0016] Optionally, the display substrate further includes a shift register unit and a driving signal line coupled to each other, and the shift register unit and the driving signal line are both located in the peripheral area;

[0017] The display substrate includes a first temperature sensing line, and an orthographic projection of a sensing portion of the first temperature sensing line on a base substrate of the display substrate at least partially overlaps with an orthographic projection of the driving signal line on the base substrate.

[0018] Optionally, the driving signal line includes an access signal terminal; the orthographic projection of the sensing part of the first temperature sensing line on the base substrate at least partially overlaps with the orthographic projection of the access signal terminal on the base substrate; the orthographic projection of the first end of the first temperature sensing line on the base substrate does not overlap with the orthographic projection of the access signal terminal on the base substrate, and the orthographic projection of the second end of the first temperature sensing line on the base substrate does not overlap with the orthographic projection of the access signal terminal on the base substrate.

[0019] Optionally, the orthographic projection of the first end of the first temperature sensing line on the base substrate and the orthographic projection of the second end of the first temperature sensing line on the base substrate are both located on the same side of the orthographic projection of the access signal end on the base substrate; or, the orthographic projection of the access signal end on the base substrate is located between the orthographic projection of the first end of the first temperature sensing line on the base substrate and the orthographic projection of the second end of the first temperature sensing line on the base substrate.

[0020] Optionally, the line width of the sensing portion of the first temperature sensing line is smaller than the line width of the first end of the first temperature sensing line, and / or the line width of the sensing portion of the first temperature sensing line is smaller than the line width of the second end of the first temperature sensing line.

[0021] Optionally, the display substrate includes second temperature sensing lines, and an extension direction of at least a portion of the second temperature sensing lines is substantially the same as an extension direction of a boundary of a display area adjacent to the portion.

[0022] Optionally, the sensing portion of the second temperature sensing line is at least partially arranged around the display area.

[0023] Optionally, the peripheral area includes a first border area, and the first border area includes a first binding area to an Nth binding area sequentially arranged along the first direction, where N is an integer greater than or equal to 2;

[0024] The first end of the second temperature sensing line is coupled to the first connection terminal of the first binding area, the second end of the second temperature sensing line is coupled to the Nth connection terminal of the Nth binding area, and the control circuit is coupled to the first connection terminal and the Nth connection terminal respectively.

[0025] Optionally, the sensing portion of the second temperature sensing line surrounds the display area.

[0026] Optionally, the peripheral area includes a first border area, and the first border area includes a first binding area to an Nth binding area sequentially arranged along the first direction, where N is an integer greater than or equal to 2;

[0027] The first end of the second temperature sensing wire is coupled to the first first connection terminal of the first binding area, the second end of the second temperature sensing wire is coupled to the second first connection terminal of the first binding area, and the control circuit is coupled to the first first connection terminal and the second first connection terminal respectively.

[0028] Optionally, the peripheral area includes a first border area, and the first border area includes a first binding area to an Nth binding area sequentially arranged along the first direction, where N is an integer greater than or equal to 2;

[0029] The sensing portion of the second temperature sensing line is located in the first border area, the first end of the second temperature sensing line is coupled to the first connection terminal of the first binding area, the second end of the second temperature sensing line is coupled to the Nth connection terminal of the Nth binding area, and the control circuit is coupled to the first connection terminal and the Nth connection terminal respectively.

[0030] Optionally, the peripheral area includes a first border area, a second border area, and a third border area; the second border area and the third border area are arranged opposite to each other along a first direction, the display area is located between the second border area and the third border area, and the first border area is located on the same side of the second border area and the third border area; the first border area includes a first binding area to an Nth binding area arranged sequentially along the first direction, where N is an integer greater than or equal to 2;

[0031] The display substrate includes at least one second temperature sensing line;

[0032] The sensing portion of the first second temperature sensing line is located in the second border area, the first end of the first second temperature sensing line is coupled to the first first connection terminal of the first binding area, the second end of the first second temperature sensing line is coupled to the second first connection terminal of the first binding area, and the control circuit is coupled to the first first connection terminal and the second first connection terminal respectively; and / or,

[0033] The sensing portion of the second second temperature sensing line is located in the third border area, the first end of the second second temperature sensing line is coupled to the first Nth connection terminal of the Nth binding area, the second end of the second second temperature sensing line is coupled to the second Nth connection terminal of the Nth binding area, and the control circuit is coupled to the first Nth connection terminal and the second Nth connection terminal respectively.

[0034] Optionally, the peripheral area further includes a fourth border area, the fourth border area and the first border area are arranged opposite to each other along a second direction, the second direction intersects the first direction, and the display area is located between the first border area and the fourth border area;

[0035] At least a portion of a first second temperature sensing line is located in the fourth frame area; and / or at least a portion of a second second temperature sensing line is located in the fourth frame area.

[0036] Based on the technical solution of the display substrate, a second aspect of the present disclosure provides a display device including the above-mentioned display substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0038] FIG1 is a schematic plan view of a display substrate provided by an embodiment of the present disclosure;

[0039] FIG2 is a cross-sectional view of a lower frame after a display substrate is aligned with a cell according to an embodiment of the present disclosure;

[0040] FIG3 is a schematic diagram of a first layout of a display substrate provided by an embodiment of the present disclosure;

[0041] FIG4 is a schematic diagram of a second layout of a display substrate provided in an embodiment of the present disclosure;

[0042] FIG5 is a first enlarged schematic diagram of portion A in FIG4 ;

[0043] FIG6 is a partially enlarged schematic diagram of FIG5 ;

[0044] FIG7 is a second enlarged schematic diagram of portion A in FIG4 ;

[0045] FIG8 is a partially enlarged schematic diagram of FIG7 ;

[0046] FIG9 is a schematic diagram of a third layout of a display substrate provided in an embodiment of the present disclosure;

[0047] FIG10 is a schematic diagram of a fourth layout of a display substrate provided in an embodiment of the present disclosure;

[0048] FIG11 is a schematic diagram of a fifth layout of a display substrate provided in an embodiment of the present disclosure;

[0049] FIG12 is a sixth schematic diagram of a layout of a display substrate provided in an embodiment of the present disclosure;

[0050] FIG13 is a seventh schematic diagram of a layout of a display substrate provided in an embodiment of the present disclosure;

[0051] FIG14 is a schematic diagram of an eighth layout of a display substrate provided in an embodiment of the present disclosure;

[0052] FIG15 is a cross-sectional view of the left frame after the display substrate is aligned with the cell according to an embodiment of the present disclosure;

[0053] FIG16 is a schematic diagram of a first layout of temperature sensing lines provided in an embodiment of the present disclosure;

[0054] FIG17 is a schematic diagram of a second layout of temperature sensing lines provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0055] In order to further illustrate the display substrate and the display device provided by the embodiments of the present disclosure, a detailed description is given below with reference to the accompanying drawings.

[0056] The operating temperature range required for display products is becoming increasingly wider, and the impact of ambient temperature on the image quality and reliability of display products cannot be ignored. Therefore, sensing the temperature inside display products is very necessary.

[0057] When sensing the internal temperature of a display product, one can consider installing an external temperature sensor on the display product, that is, integrating the temperature sensor on the XPCB board or TCON board of the display product. However, this external temperature sensor method cannot truly reflect the temperature inside the display product, and given the impact of the external temperature sensor on the appearance of the display product, it is not possible to install temperature sensors in multiple locations on the display product.

[0058] Therefore, how to more accurately sense and display the internal temperature of a product has become an urgent problem to be solved.

[0059] Referring to FIG. 1 to FIG. 4 and FIG. 9 to FIG. 14 , an embodiment of the present disclosure provides a display substrate 70 , including: a display area 10 and a peripheral area 20 located around the display area 10 ; the display substrate 70 further includes:

[0060] a temperature sensing line 30 , the temperature sensing line 30 being located in the peripheral area 20 , and the resistance of the temperature sensing line 30 changing with the change of the surrounding temperature;

[0061] A control circuit is coupled to the temperature sensing line 30 and is used to determine the ambient temperature of the temperature sensing line 30 according to a change in resistance of the temperature sensing line 30 .

[0062] Exemplarily, the display substrate 70 includes a display area 10 and a peripheral area 20 , and the peripheral area 20 surrounds the display area 10 , but is not limited thereto.

[0063] Exemplarily, the display substrate 70 includes a plurality of gate lines GA and a plurality of data lines DA. The gate lines GA extend through the display area 10 along a first direction, and the data lines DA extend through the display area 10 along a second direction. The first direction intersects the second direction, for example, the first direction includes a horizontal direction, and the second direction includes a vertical direction. The gate lines GA are used to transmit scan signals, and the data lines DA are used to transmit data signals. The display substrate 70 also includes a plurality of sub-pixels arranged in an array, each of which includes a pixel electrode Ano. It is worth noting that the accompanying drawings only illustrate the pixel electrode Ano included in one sub-pixel.

[0064] Exemplarily, the display substrate 70 can be used in a liquid crystal display device. When the display substrate 70 is used in a liquid crystal display device, the sub-pixel further includes a common electrode. The display substrate 70 can also be used in an organic light-emitting diode display device. When the display substrate 70 is used in an organic light-emitting diode display device, the display substrate 70 further includes a cathode layer. In both cases, the pixel electrode Ano, the common electrode, and the cathode layer can be made of a transparent conductive material, such as indium tin oxide (ITO), to form the transparent pixel electrode Ano, the common electrode, and the cathode layer.

[0065] Exemplarily, the peripheral area 20 of the display substrate 70 includes an upper frame area 204, a lower frame area 201, a left frame area 202 and a right frame area 203. When the display substrate 70 is paired with the color filter substrate 71 to form a display panel, the substrate boundaries of the display substrate 70 in the upper frame area 204, the left frame area 202 and the right frame area 203 are aligned with the substrate boundaries of the color filter substrate 71, and the substrate boundary of the display substrate 70 in the lower frame area 201 is not aligned with the substrate boundary of the color filter substrate 71. The substrate boundary of the display substrate 70 in the lower frame area 201 is set to exceed the substrate boundary of the color filter substrate 71. The lower frame area 201 is used as a binding PAD area for IC binding, so the binding PAD area needs to be a binding lead area 2011 for IC bonding. It is worth noting that, as shown in Figure 2, a color filter layer and a black matrix BM are provided on the color filter substrate, and a metal trace 701 is provided on the display substrate 70.

[0066] Exemplarily, the temperature sensing line 30 is located in at least one of the upper frame area 204, the lower frame area 201, the left frame area 202, and the right frame area 203. The resistance of the temperature sensing line 30 changes with changes in the surrounding temperature. The temperature sensing line 30 can be made of, but is not limited to, a metal material or a conductive metal oxide material.

[0067] In more detail, the display substrate 70 provided by the present disclosure utilizes the characteristic that the resistance of the temperature sensing line 30 changes with temperature, and the current temperature is determined by monitoring the change in resistance value. The temperature coefficient of resistance (TCR) represents the relative change in resistance value when the temperature changes by 1 degree Celsius. For example, the temperature coefficient of resistance of copper is 1 / 234.5°C, which means that when the temperature changes by 1°C, the resistance value of copper changes by 4.26‰. Moreover, this TCR data is stable within a certain temperature range, such as within the range of 0 to 200°C, which is an important prerequisite for the selection of materials for temperature sensors.

[0068] Exemplarily, the display substrate 70 also includes a chip on film (COF) and a circuit board, the COF is bound to the binding lead area 2011, the circuit board is coupled to the chip on film, and the coupling with the functional structure of the peripheral area 20 is achieved through the chip on film.

[0069] For example, the COF includes a signal transmission channel, the circuit board is coupled to the signal transmission channel on the COF, and the signal transmission channel is coupled to the functional structure of the peripheral area 20. For example, the control circuit can be disposed on the circuit board and coupled to the temperature sensing line 30 via the signal transmission channel, for determining the ambient temperature of the temperature sensing line 30 based on a change in resistance of the temperature sensing line 30.

[0070] For example, the chip on the chip film is coupled to the temperature sensing line 30 , and the chip is also coupled to a control circuit provided on the circuit board. The control circuit senses the resistance change of the temperature sensing line 30 by controlling the chip, and then determines the ambient temperature of the temperature sensing line 30 .

[0071] Exemplarily, the above-mentioned method of determining the ambient temperature of the temperature sensing line 30 based on the resistance change of the temperature sensing line 30 specifically includes: obtaining the change in voltage or current on the temperature sensing line 30, obtaining the resistance change of the temperature sensing line 30 based on the change, and obtaining the ambient temperature of the temperature sensing line 30 based on the resistance change, but is not limited to the above method.

[0072] According to the specific structure of the display substrate 70 described above, in the display substrate 70 provided in the embodiment of the present disclosure, the temperature sensing wire 30 is arranged in the peripheral region 20, and the resistance of the temperature sensing wire 30 can change with changes in the surrounding temperature. At the same time, a control circuit is provided in the display substrate 70 and is coupled to the temperature sensing wire 30. The control circuit can determine the surrounding temperature of the temperature sensing wire 30 based on the change in the resistance of the temperature sensing wire 30. The above arrangement allows the temperature sensing wire 30 to be integrated within the display substrate 70. This not only enables accurate sensing of the temperature within the display substrate 70, but also does not affect the appearance of the display product to which the display substrate 70 is applied. Moreover, the integration of the temperature sensing wire 30 within the display substrate 70 allows, through reasonable layout, the temperature sensor to be as close as possible to the area where it is to sense the temperature, further reducing sensing errors.

[0073] In the display substrate 70 provided in the embodiment of the present disclosure, the temperature inside the display substrate 70 can be accurately sensed in real time through the temperature sensing line 30 and the control circuit. According to the sensed temperature, the driving signal of the sub-pixel, the driving signal of the GOA circuit, or the brightness of the backlight can be further changed for different temperature segments to compensate for the display effect of the display product, thereby improving the display quality and reliability of the display product without affecting the appearance of the display product.

[0074] Please refer to Figures 4 to 14. In some embodiments, the temperature sensing line 30 includes a first end g1, a second end g2 and a sensing portion g3. The first end g1 and the second end g2 are respectively coupled to the control circuit, and the sensing portion g3 is respectively coupled to the first end g1 and the second end g2. The resistance of the sensing portion g3 is greater than the resistance of the first end g1, and the resistance of the sensing portion g3 is greater than the resistance of the second end g2.

[0075] Exemplarily, the first end portion g1, the second end portion g2 and the sensing portion g3 form an integrated structure.

[0076] Exemplarily, the resistance of the sensing portion g3 changes with the change of its surrounding temperature, so as to sense the surrounding environment temperature.

[0077] Since the first end g1 and the second end g2 are far away from the area where the temperature is to be sensed in the display substrate 70, and the resistance of the first end g1 and the second end g2 will also change with the change of temperature, the above-mentioned setting of the resistance of the sensing part g3 being greater than the resistance of the first end g1, and the resistance of the sensing part g3 being greater than the resistance of the second end g2 can effectively reduce the influence of the resistance of the first end g1 and the second end g2 on the resistance of the sensing part g3, thereby ensuring the accuracy of the temperature sensing by the sensing part g3.

[0078] As shown in FIG. 16 and FIG. 17 , in some embodiments, the sensing portion g3 includes a plurality of sub-portions coupled in sequence, and the extension directions of two coupled sub-portions are different.

[0079] The above arrangement helps increase the wiring length of the sensing portion g3, thereby increasing the resistance of the sensing portion g3 and further improving the accuracy of the temperature sensing by the sensing portion g3. Furthermore, the above arrangement increases the flexibility of the layout of the sensing portion g3, thereby better adapting to limited layout space and reducing the difficulty of the layout of the sensing portion g3.

[0080] As shown in Figure 17, in some embodiments, the sensing portion g3 includes at least one fold line structure 40, and the fold line structure 40 includes two parallel first sub-portions g31, and second sub-portions g32 respectively coupled to the ends on the same side as the two first sub-portions g31.

[0081] Exemplarily, the fold line structure 40 is formed into a U-shaped structure, but is not limited thereto.

[0082] Exemplarily, the sensing portion g3 adopts a serpentine routing design, but is not limited thereto.

[0083] Exemplarily, the sensing portion g3 may include at least one of a straight line, a broken line, and a serpentine line.

[0084] The above arrangement helps increase the wiring length of the sensing portion g3, thereby increasing the resistance of the sensing portion g3 and further improving the accuracy of the temperature sensing by the sensing portion g3. Furthermore, the above arrangement increases the flexibility of the layout of the sensing portion g3, thereby better adapting to limited layout space and reducing the difficulty of the layout of the sensing portion g3.

[0085] As shown in Figures 4 to 14, in some embodiments, the peripheral area 20 includes a sealing glue area 50, the sealing glue area 50 surrounds the display area 10, and at least a portion of the sensing portion g3 is located between the sealing glue area 50 and the display area 10.

[0086] Exemplarily, the display substrate 70 further includes a shift register unit GOA, and the orthographic projection of at least part of the sensing portion g3 on the base substrate of the display substrate 70 is located between the orthographic projection of the shift register unit GOA on the base substrate and the display area 10 .

[0087] Exemplarily, the shift register unit GOA is located in the left border area 202 and / or the right border area 203 .

[0088] Exemplarily, at least a portion of the first end portion g1 is located between the frame-sealing glue area 50 and the display area 10; and / or, at least a portion of the first end portion g1 is located in the frame-sealing glue area 50; and / or, at least a portion of the first end portion g1 is located on a side of the frame-sealing glue area 50 away from the display area 10.

[0089] Exemplarily, at least a portion of the second end portion g2 is located between the frame-sealing glue area 50 and the display area 10; and / or, at least a portion of the second end portion g2 is located in the frame-sealing glue area 50; and / or, at least a portion of the second end portion g2 is located on a side of the frame-sealing glue area 50 away from the display area 10.

[0090] As shown in Figure 15, it is a cross-sectional schematic diagram of the left frame of the display substrate 70, which is divided into five areas a, b, c, d, and e. Among them, area a is the area between the edge of the base substrate of the display substrate 70 and the frame sealing glue area 50. After the display substrate 70 is boxed, area a is located outside the box, area b is the frame sealing glue area 50, area c is the layout area of ​​the drive signal line 60 of the shift register unit GOA, area d is the layout area of ​​the shift register unit GOA, and area e is the area between the shift register unit GOA and the display area 10. This area is used to layout the common electrode lines located in the peripheral area 20, as well as virtual pixels, etc.

[0091] The above configuration makes the sensing portion g3 closer to the display area 10 , thereby better improving the sensing accuracy of the sensing portion g3 for the internal temperature of the display substrate 70 .

[0092] In some embodiments, at least a portion of the sensing portion g3 is located in the frame-sealing glue area 50; and / or, the orthographic projection of at least a portion of the sensing portion g3 on the base substrate of the display substrate 70 is located between the orthographic projection of the shift register unit GOA on the base substrate and the frame-sealing glue area 50; the orthographic projection of at least a portion of the sensing portion g3 on the base substrate of the display substrate 70 at least partially overlaps with the orthographic projection of the shift register unit GOA on the base substrate.

[0093] The above configuration is beneficial to increasing the layout space of the sensing portion g3 and reducing the layout difficulty of the sensing portion g3.

[0094] In some embodiments, the display substrate 70 includes a conductive film layer, and the temperature sensing line 30 and the conductive film layer are provided in the same layer and made of the same material.

[0095] Exemplarily, the conductive film layer includes a gate metal layer, a source / drain metal layer, an anode layer, a common electrode layer or a cathode layer, but is not limited thereto.

[0096] Exemplarily, the temperature sensing line 30 has the same thickness as the conductive film layer.

[0097] For example, the temperature sensing line 30 may be made of metal materials such as Cu, Al, Mo, Nb, Pt, etc., or may be made of metal oxide material ITO, but is not limited thereto.

[0098] The temperature sensing line 30 is set in the same layer and material as the conductive film layer, so that the temperature sensing line 30 can be formed simultaneously with the conductive film layer in the same composition process, avoiding the addition of an additional composition process to produce the temperature sensing line 30, thereby effectively simplifying the production process of the display substrate 70 and reducing the production cost of the display substrate 70.

[0099] It is worth noting that after the display substrate 70 is placed in the box, the sensing part g3 is located inside the box, and the control circuit is located outside the box. The resistance of the wiring outside the box connecting the control circuit and the temperature sensing line 30 will also change with temperature. In order to reduce the influence of the resistance of the wiring outside the box on the sensing accuracy of the temperature sensing line 30, the resistance formed by the temperature sensing line 30 inside the box should be large enough, and the resistance value should be at least 10 times that of the wiring outside the box. Therefore, the temperature sensing line 30 inside the box should be designed accordingly according to the materials to be used in the display substrate 70, the size of the display substrate 70, etc.

[0100] As shown in FIG3 to FIG8 , in some embodiments, the display substrate 70 further includes a shift register unit GOA and a driving signal line 60 coupled thereto, and the shift register unit GOA and the driving signal line 60 are both located in the peripheral area 20 ;

[0101] The display substrate 70 includes a first temperature sensing line 301 , and an orthographic projection of a sensing portion g3 of the first temperature sensing line 301 on the base substrate of the display substrate 70 at least partially overlaps with an orthographic projection of the driving signal line 60 on the base substrate.

[0102] Exemplarily, the driving signal line 60 includes a clock signal line, but is not limited thereto. The clock signal line always transmits a square wave signal with a higher frequency and a larger voltage amplitude, and generates a larger AC current. The clock signal line generally transmits 10 4 The square wave signal has a parasitic capacitance and resistance in the signal line itself. The square wave signal charges and discharges on the parasitic capacitance, resulting in a current i. According to the heat formula Q = i 2 *R, current i passing through the resistor generates heat, resulting in a higher temperature.

[0103] For example, the driving signal line 60 is generally made of a metal material with a relatively low resistivity, such as Cu, Al, etc., in order to reduce resistance.

[0104] Exemplarily, the first temperature sensing line 301 is made of a conductive material with a relatively high resistivity and is provided in a different layer from the driving signal line 60 . For example, the first temperature sensing line 301 and the driving signal line 60 are stacked with an insulating layer between them.

[0105] The above configuration can satisfy the requirement of a larger ratio between the resistance of the first temperature sensing line 301 inside the box and the resistance of the driving signal line 60 outside the box, while not requiring additional wiring space for arranging the first temperature sensing line 301 .

[0106] The orthographic projection of the sensing portion g3 of the first temperature sensing line 301 on the base substrate of the display substrate 70 at least partially overlaps with the orthographic projection of the drive signal line 60 on the base substrate, enabling the first temperature sensing line 301 to accurately sense temperature changes of the drive signal line 60. Furthermore, based on the sensed temperature, the drive signal of the GOA circuit can be changed for different temperature ranges to compensate for the display effect of the display product.

[0107] As shown in Figures 3 to 8, in some embodiments, the driving signal line 60 includes an access signal terminal 601; the orthographic projection of the sensing portion g3 of the first temperature sensing line 301 on the base substrate at least partially overlaps with the orthographic projection of the access signal terminal 601 on the base substrate; the orthographic projection of the first end g1 of the first temperature sensing line 301 on the base substrate does not overlap with the orthographic projection of the access signal terminal 601 on the base substrate, and the orthographic projection of the second end g2 of the first temperature sensing line 301 on the base substrate does not overlap with the orthographic projection of the access signal terminal 601 on the base substrate.

[0108] Exemplarily, the orthographic projection of the first end g1 of the first temperature sensing line 301 on the base substrate and the orthographic projection of the second end g2 of the first temperature sensing line 301 on the base substrate are both located on the same side of the orthographic projection of the access signal terminal 601 on the base substrate; or, the orthographic projection of the access signal terminal 601 on the base substrate is located between the orthographic projection of the first end g1 of the first temperature sensing line 301 on the base substrate and the orthographic projection of the second end g2 of the first temperature sensing line 301 on the base substrate.

[0109] The access signal terminal 601, the portion of the drive signal line 60 located between the lead binding area 2011 and the shift register unit GOA, is defined as a Pattern Line on Glass (PLG) trace. The area where the access signal terminal 601 resides is a densely wired area with limited available layout space. This area is also the convergence point for all the currents from the shift register units GOA, resulting in the highest current flow, heat generation, and temperature. Therefore, for high-resolution and high-refresh-rate display products, monitoring the PLG trace temperature and implementing effective cooling measures is essential for product safety and reliability.

[0110] For example, the sensing portion g3 of the first temperature sensing line 301 is made of ITO material and has a serpentine routing design. It is worth noting that the line width, line spacing, and shape of the first temperature sensing line 301 can be adjusted according to actual resistance and wiring space requirements.

[0111] The orthographic projection of the sensing portion g3 of the first temperature sensing line 301 on the base substrate of the display substrate 70 at least partially overlaps with the orthographic projection of the signal access terminal 601 on the base substrate, enabling the first temperature sensing line 301 to accurately sense temperature changes at the signal access terminal 601. Furthermore, based on the sensed temperature, the drive signal of the shift register unit GOA can be varied for different temperature ranges, thereby compensating for the display effect of the display product.

[0112] As shown in Figures 6 and 8, in some embodiments, the line width of the sensing portion g3 of the first temperature sensing line 301 is smaller than the line width of the first end g1 of the first temperature sensing line 301, and / or the line width of the sensing portion g3 of the first temperature sensing line 301 is smaller than the line width of the second end g2 of the first temperature sensing line 301.

[0113] Exemplarily, as shown in Figures 6 and 17, the sensing part g3 includes a plurality of fold line structures 40, and the plurality of fold line structures 40 are arranged in sequence along the extension direction of the access signal terminal 601, and the size of each of the fold line structures 40 is the same, which may refer to: the length of the fold line structure along the length direction of the first sub-part g31; or the width of the fold line structure along the width direction of the first sub-part g31.

[0114] For example, as shown in FIG8 and FIG17 , the sensing portion g3 includes a plurality of fold line structures 40. The plurality of first sub-portions g31 included in the plurality of fold line structures 40 are sequentially arranged along the extension direction of the access signal terminal 601. The plurality of first sub-portions g31 are away from one end of the sealant area 50 and are aligned along the extension direction of the access signal terminal 601. The lengths of at least a portion of the first sub-portions g31 away from the sealant area 50 are equal. The lengths of at least a portion of the first sub-portions g31 away from the sealant area 50 are aligned along the extension direction of the access signal terminal 601 near one end of the sealant area 50. The lengths of at least a portion of the first sub-portions g31 near the sealant area 50 gradually decrease. The lengths of at least a portion of the first sub-portions g31 near the sealant area 50 are aligned along the extension direction of the access signal terminal 601 near one end of the sealant area 50.

[0115] The binding lead area 2011 is on the side of the sealing glue area 50 away from the display area 10. The first end g1 and the second end g2 must pass through the sealing glue area 50 to connect to the binding lead area 2011, thereby realizing connection with the control circuit. The above-mentioned setting method enables the first end g1 and the second end g2 to have a wider line width, thereby reducing the resistance of the first end g1 and the second end g2, thereby reducing the influence of the first end g1 and the second end g2 on the resistance value of the sensing part g3, and effectively improving the sensing accuracy of the first temperature sensing line 301.

[0116] As shown in FIG. 9 to FIG. 14 , in some embodiments, the display substrate 70 includes a second temperature sensing line 302 , and an extension direction of at least a portion of the second temperature sensing line 302 is substantially the same as an extension direction of a boundary of the display area 10 adjacent to the portion.

[0117] Illustratively, in the left frame area 202 of the display substrate 70, at least a portion of the sensing portion g3 of the second temperature sensing line 302 extends in the same direction as the boundary of the display area 10 near the left frame area 202. In the right frame area 203 of the display substrate 70, at least a portion of the sensing portion g3 of the second temperature sensing line 302 extends in the same direction as the boundary of the display area 10 near the right frame area 203. In the upper frame area 204 of the display substrate 70, at least a portion of the sensing portion g3 of the second temperature sensing line 302 extends in the same direction as the boundary of the display area 10 near the upper frame area 204. In the lower frame area 201 of the display substrate 70, at least a portion of the sensing portion g3 of the second temperature sensing line 302 extends in the same direction as the boundary of the display area 10 near the lower frame area 201.

[0118] The above configuration enables the second temperature sensing line 302 to sense the temperature of the display region 10 over a larger area, thereby better improving the sensing accuracy of the sensing portion g3 for the internal temperature of the display substrate 70 .

[0119] As shown in FIG. 9 to FIG. 11 , in some embodiments, the sensing portion g3 of the second temperature sensing line 302 is at least partially disposed around the display area 10 .

[0120] Exemplarily, the sensing portion g3 of the second temperature sensing line 302 includes portions located at the left frame, the upper frame, and the right frame.

[0121] As shown in Figures 9 and 11, exemplarily, the peripheral area 20 includes a first border area (such as the lower border area 201), and the first border area includes a first binding area to an N-th binding area (i.e., N binding lead areas 2011) arranged in sequence along a first direction, where N is an integer greater than or equal to 2; the first end g1 of the second temperature sensing line 302 is coupled to the first connection terminal of the first binding area, and the second end g2 of the second temperature sensing line 302 is coupled to the N-th connection terminal of the N-th binding area, and the control circuit is coupled to the first connection terminal and the N-th connection terminal, respectively.

[0122] Exemplarily, the first binding area includes a plurality of first connection terminals, and the Nth binding area includes a plurality of Nth connection terminals. The connection terminals of each binding area are used to connect to a corresponding COF.

[0123] Exemplarily, the signal transmitted on the second temperature sensing line 302 can be input from the first connection terminal, pass through the part of the second temperature sensing line 302 located at the left frame, the part located at the upper frame and the part located at the right frame in sequence, and finally output from the Nth connection terminal.

[0124] The above configuration enables the second temperature sensing line 302 to sense the temperature of the display region 10 over a larger area, thereby better improving the sensing accuracy of the sensing portion g3 for the internal temperature of the display substrate 70 .

[0125] As shown in FIG. 10 , in some embodiments, the sensing portion g3 of the second temperature sensing line 302 surrounds the display area 10 .

[0126] Exemplarily, the sensing portion g3 of the second temperature sensing line 302 includes portions located at the left frame, the upper frame, the right frame, and the lower frame.

[0127] Exemplarily, the peripheral area 20 includes a first border area, the first border area includes a first binding area to an Nth binding area arranged in sequence along a first direction, N is an integer greater than or equal to 2; the first end g1 of the second temperature sensing line 302 is coupled to the first first connection terminal of the first binding area, the second end g2 of the second temperature sensing line 302 is coupled to the second first connection terminal of the first binding area, and the control circuit is coupled to the first first connection terminal and the second first connection terminal respectively.

[0128] Illustratively, the signal transmitted on the second temperature sensing line 302 can be input from the first connection terminal coupled to its first end g1, and pass through the part of the second temperature sensing line 302 located on the left frame, the part located on the upper frame, the part located on the right frame, and the part located on the lower frame in sequence, and finally output from the first connection terminal coupled to the second end g2.

[0129] The above configuration enables the second temperature sensing line 302 to sense the temperature of the display region 10 over a larger area, thereby better improving the sensing accuracy of the sensing portion g3 for the internal temperature of the display substrate 70 .

[0130] The above-mentioned setting method extends the routing length of the second temperature sensing line 302 and increases the resistance of the second temperature sensing line 302. Moreover, the first end g1 and the second end g2 of the second temperature sensing line 302 are both coupled to the first connection terminal corresponding to the first binding area, that is, coupling with the pin of the same COF is achieved. This setting method makes the first end g1 and the second end g2 closer to each other, making coupling with the control circuit easier to achieve and effectively reducing the wiring complexity on the circuit board where the control circuit is located.

[0131] It is worth noting that when the second temperature sensing line 302 is arranged around the display, it may cross other signal lines in the display substrate 70 (with an insulating layer between the two). This crossing line method will generate a small parasitic capacitance, but will not affect the display.

[0132] As shown in Figures 11 and 17, in some embodiments, the sensing portion g3 in the second temperature sensing line 302 includes at least one fold line structure 40, and the fold line structure 40 can be located in the left frame area 202, the upper frame area 204, the right frame area 203 and the lower frame area 201.

[0133] Exemplarily, at least one fold line structure 40 may be included in any border area. When at least two fold line structures 40 are included, the openings of adjacent fold line structures 40 are opposite, and adjacent fold line structures 40 may reuse a first sub-portion g31. The at least two fold line structures 40 together form a serpentine routing design.

[0134] The above configuration is conducive to increasing the resistance of the second temperature sensing line 302, thereby improving the sensing accuracy of the second temperature sensing line 302. The above configuration is suitable for display products with small size and sufficient layout space in the peripheral area 20.

[0135] As shown in FIG12 , in some embodiments, the peripheral region 20 includes a first border region, and the first border region includes a first binding region to an Nth binding region sequentially arranged along a first direction, where N is an integer greater than or equal to 2;

[0136] The sensing part g3 of the second temperature sensing line 302 is located in the first border area, the first end g1 of the second temperature sensing line 302 is coupled to the first connection terminal of the first binding area, the second end g2 of the second temperature sensing line 302 is coupled to the Nth connection terminal of the Nth binding area, and the control circuit is coupled to the first connection terminal and the Nth connection terminal respectively.

[0137] Exemplarily, the second temperature sensing line 302 is located in the lower frame area 201 , and senses the temperature of the display area 10 in the lower frame area 201 .

[0138] The above configuration enables the second temperature sensing line 302 to sense the temperature of the display region 10 over a larger area, thereby better improving the sensing accuracy of the sensing portion g3 for the internal temperature of the display substrate 70 .

[0139] As shown in Figures 13 and 14, in some embodiments, the peripheral area 20 includes a first border area (such as a lower border area 201), a second border area (such as a left border area 202) and a third border area (such as a right border area 203); the second border area and the third border area are arranged opposite to each other along a first direction, the display area 10 is located between the second border area and the third border area, and the first border area is located on the same side of the second border area and the third border area; the first border area includes a first binding area to an Nth binding area arranged in sequence along the first direction, where N is an integer greater than or equal to 2;

[0140] The display substrate 70 includes at least one second temperature sensing line 302;

[0141] The sensing portion g3 of the first second temperature sensing line 302 is located in the second border area, the first end g1 of the first second temperature sensing line 302 is coupled to the first first connection terminal of the first binding area, the second end g2 of the first second temperature sensing line 302 is coupled to the second first connection terminal of the first binding area, and the control circuit is coupled to the first first connection terminal and the second first connection terminal respectively; and / or,

[0142] The sensing part g3 of the second second temperature sensing line 302 is located in the third border area, the first end g1 of the second second temperature sensing line 302 is coupled to the first Nth connection terminal of the Nth binding area, the second end g2 of the second second temperature sensing line 302 is coupled to the second Nth connection terminal of the Nth binding area, and the control circuit is coupled to the first Nth connection terminal and the second Nth connection terminal respectively.

[0143] Illustratively, the sensing portion g3 of the first second temperature sensing line 302 includes at least one broken line structure 40 , and the sensing portion g3 of the second second temperature sensing line 302 includes at least one broken line structure 40 .

[0144] For example, the first second temperature sensing line 302 and the second second temperature sensing line 302 may work simultaneously, and the average value of the temperatures sensed by the two second temperature sensing lines 302 may be taken, which can effectively reduce sensing errors.

[0145] As shown in FIG14 , in some embodiments, the peripheral area 20 further includes a fourth border area (such as an upper border area 204 ), the fourth border area and the first border area are arranged opposite to each other along a second direction, the second direction intersecting the first direction, and the display area 10 is located between the first border area and the fourth border area;

[0146] At least a portion of the first second temperature sensing line 302 is located in the fourth border area; and / or at least a portion of the second second temperature sensing line 302 is located in the fourth border area.

[0147] For example, the first second temperature sensing line 302 can be set to include portions located in the left frame area 202 and the upper frame area 204, and the second second temperature sensing line 302 can be set to include portions located in the left frame area 202 and the upper frame area 204, so as to increase the resistance of the two second temperature sensing lines 302 and improve the sensing accuracy of the second temperature sensing lines 302.

[0148] An embodiment of the present disclosure further provides a display device, comprising the display substrate provided by the above embodiment.

[0149] Illustratively, the display device includes a liquid crystal display device and an organic light emitting diode display device, but is not limited thereto.

[0150] It should be noted that the display device can be any product or component with a display function, such as a television, a monitor, a digital photo frame, a mobile phone, a tablet computer, etc., wherein the display device also includes a flexible circuit board, a printed circuit board and a backplane.

[0151] In the display substrate provided by the above embodiment, temperature sensing wires are arranged in the peripheral area, and the resistance of the temperature sensing wires can change with changes in the surrounding temperature. A control circuit in the display substrate is also coupled to the temperature sensing wires, and the control circuit can determine the surrounding temperature of the temperature sensing wires based on the resistance changes of the temperature sensing wires. This arrangement allows the temperature sensing wires to be integrated within the display substrate, which not only accurately senses the temperature within the display substrate but also does not affect the appearance of the display product in which the display substrate is used. Furthermore, the integration of the temperature sensing wires within the display substrate allows for a reasonable layout to maximize the proximity of the temperature sensor to the area where it is intended to sense the temperature, further reducing sensing errors. In the display substrate provided by the above embodiment, the temperature sensing wires and the control circuit can accurately sense the temperature within the display substrate in real time. Based on the sensed temperature, the sub-pixel drive signal, the GOA circuit drive signal, or the backlight brightness can be modified for different temperature ranges to compensate for the display effect of the display product, thereby improving the display quality and reliability of the display product without affecting the appearance of the display product.

[0152] The display device provided by the embodiment of the present disclosure also has the above-mentioned beneficial effects when it includes the above-mentioned display substrate, which will not be described in detail here.

[0153] It should be noted that the signal line extending along the X-direction means that the signal line includes a main portion and a secondary portion connected to the main portion, the main portion is a line, a line segment, or a strip-shaped body, the main portion extends along the X-direction, and the length of the main portion extending along the X-direction is greater than the length of the secondary portion extending along other directions.

[0154] It should be noted that the "same layer" in the embodiment of the present disclosure may refer to a film layer on the same structural layer. Or, for example, a film layer in the same layer may be a film layer formed by using the same film forming process to form a specific pattern, and then patterning the film layer using the same mask through a single composition process to form a layer structure. Depending on the specific pattern, a single composition process may include multiple exposure, development or etching processes, and the specific pattern in the formed layer structure may be continuous or discontinuous. These specific patterns may also be at different heights or have different thicknesses.

[0155] In the various method embodiments of the present disclosure, the serial numbers of the steps cannot be used to limit the order of the steps. For ordinary technicians in this field, without paying any creative work, changes to the order of the steps are also within the scope of protection of the present disclosure.

[0156] It should be noted that the various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences from other embodiments. In particular, the method embodiments are described briefly because they are generally similar to the product embodiments. For relevant parts, refer to the description of the product embodiments.

[0157] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect", "couple" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0158] It will be understood that when an element such as a layer, film, region, or substrate is referred to as being “on” or “under” another element, it can be “directly on” or “under” the other element or intervening elements may be present.

[0159] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0160] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A display substrate, comprising: A display area and a peripheral area located around the display area; The display substrate further includes: A temperature sensing line located in the peripheral area, and the resistance of the temperature sensing line changes following the change of the temperature around it; A control circuit coupled to the temperature sensing line for judging the temperature around the temperature sensing line according to the resistance change of the temperature sensing line.

2. The display substrate according to claim 1, wherein The temperature sensing line includes a first end, a second end and a sensing portion. The first end and the second end are respectively coupled to the control circuit, the sensing portion is respectively coupled to the first end and the second end, the resistance value of the sensing portion is greater than the resistance value of the first end, and the resistance value of the sensing portion is greater than the resistance value of the second end.

3. The display substrate according to claim 2, wherein, The sensing portion includes a plurality of sub-portions coupled in sequence, and the extending directions of two adjacent sub-portions are different.

4. The display substrate according to claim 3, wherein, The sensing portion includes at least one folded line structure, and the folded line structure includes two first sub-portions parallel to each other and second sub-portions respectively coupled to the ends on the same side of the two first sub-portions.

5. The display substrate according to claim 4, wherein, The sensing portion adopts a serpentine routing design.

6. The display substrate according to claim 2, wherein, The peripheral area includes a sealant area surrounding the display area, and at least part of the sensing portion is located between the sealant area and the display area.

7. The display substrate according to claim 6, wherein, The display substrate further includes a shift register unit, and the positive projection of at least part of the sensing portion on the substrate of the display substrate is located between the positive projection of the shift register unit on the substrate and the display area.

8. The display substrate according to claim 1, wherein, The display substrate includes a conductive film layer, and the temperature sensing line is provided with the same layer and the same material as the conductive film layer.

9. The display substrate according to any one of claims 1 to 8, wherein, The display substrate further includes a shift register unit and a driving signal line coupled to each other, and both the shift register unit and the driving signal line are located in the peripheral area; The display substrate includes a first temperature sensing line, and the positive projection of the sensing portion of the first temperature sensing line on the substrate of the display substrate at least partially overlaps with the positive projection of the driving signal line on the substrate.

10. The display substrate according to claim 9, wherein, The driving signal line includes an access signal end; the positive projection of the sensing portion of the first temperature sensing line on the substrate at least partially overlaps with the positive projection of the access signal end on the substrate; The positive projection of the first end of the first temperature sensing line on the substrate does not overlap with the positive projection of the access signal end on the substrate, and the positive projection of the second end of the first temperature sensing line on the substrate does not overlap with the positive projection of the access signal end on the substrate.

11. The display substrate according to claim 10, wherein, The positive projection of the first end of the first temperature sensing line on the substrate and the positive projection of the second end of the first temperature sensing line on the substrate are both located on the same side of the positive projection of the access signal end on the substrate; Or, the positive projection of the access signal end on the substrate is located between the positive projection of the first end of the first temperature sensing line on the substrate and the positive projection of the second end of the first temperature sensing line on the substrate.

12. The display substrate according to claim 10, wherein, The sensing portion of the first temperature sensing line has a smaller line width than the first end portion of the first temperature sensing line, and / or the sensing portion of the first temperature sensing line has a smaller line width than the second end portion of the first temperature sensing line.

13. The display substrate according to any one of claims 1 to 8, wherein, The display substrate includes second temperature sensing lines, and an extension direction of at least a portion of the second temperature sensing lines is substantially the same as an extension direction of a boundary of a display area adjacent to the portion.

14. The display substrate according to claim 13, wherein, The sensing portion of the second temperature sensing line is at least partially disposed around the display area.

15. The display substrate according to claim 14, wherein, The peripheral area includes a first border area, and the first border area includes a first binding area to an Nth binding area sequentially arranged along a first direction, where N is an integer greater than or equal to 2; The first end of the second temperature sensing line is coupled to the first connection terminal of the first binding area. The second end of the second temperature sensing line is coupled to the Nth connection terminal of the Nth binding area, and the control circuit is coupled to the first connection terminal and the Nth connection terminal respectively.

16. The display substrate according to claim 14, wherein: The sensing portion of the second temperature sensing line surrounds the display area.

17. The display substrate according to claim 16, wherein, The peripheral area includes a first border area, and the first border area includes a first binding area to an Nth binding area sequentially arranged along a first direction, where N is an integer greater than or equal to 2; The first end of the second temperature sensing wire is coupled to the first first connection terminal of the first binding area, the second end of the second temperature sensing wire is coupled to the second first connection terminal of the first binding area, and the control circuit is coupled to the first first connection terminal and the second first connection terminal respectively.

18. The display substrate according to claim 13, wherein, The peripheral area includes a first border area, and the first border area includes a first binding area to an Nth binding area sequentially arranged along a first direction, where N is an integer greater than or equal to 2; The sensing portion of the second temperature sensing line is located in the first border area, the first end of the second temperature sensing line is coupled to the first connection terminal of the first binding area, the second end of the second temperature sensing line is coupled to the Nth connection terminal of the Nth binding area, and the control circuit is coupled to the first connection terminal and the Nth connection terminal respectively.

19. The display substrate according to claim 13, wherein, The peripheral area includes a first border area, a second border area, and a third border area; the second border area and the third border area are arranged opposite to each other along a first direction, the display area is located between the second border area and the third border area, and the first border area is located on the same side of the second border area and the third border area; the first border area includes a first binding area to an Nth binding area arranged in sequence along the first direction, where N is an integer greater than or equal to 2; The display substrate includes at least one second temperature sensing line; The sensing portion of the first second temperature sensing line is located in the second border area, the first end of the first second temperature sensing line is coupled to the first first connection terminal of the first binding area, the second end of the first second temperature sensing line is coupled to the second first connection terminal of the first binding area, and the control circuit is respectively connected to the first first connection terminal and the second first connection terminal. Connecting terminal coupling; and / or, The sensing portion of the second temperature sensing line described in the second article is located in the third border area. The first end of the second temperature sensing line described in the second article is coupled to the first Nth connection terminal of the Nth bonding area, and the second end of the second temperature sensing line described in the second article is coupled to the second Nth connection terminal of the Nth bonding area. The control circuit is respectively coupled to the first Nth connection terminal and the second Nth connection terminal.

20. The display substrate according to claim 19, wherein The peripheral area further includes a fourth border area. The fourth border area and the first border area are disposed opposite to each other along a second direction, the second direction intersects with the first direction, and the display area is located between the first border area and the fourth border area; At least a part of the first second temperature sensing line is located in the fourth border area; And / or, at least a part of the second second temperature sensing line is located in the fourth border area.

21. A display device, comprising the display substrate according to any one of claims 1 to 20.

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