Display panel and display device

Abstract

The invention discloses a display panel and a display device.A display area of the display panel is non-rectangular, the display panel comprises a plurality of heating wires, at least part of the heating wires are located in the display area, the two ends of the heating wires are located in the non-display area, and each heating wire comprises at least two first sub-segments which extend in the first direction and are arranged in the second direction; the first sub-sections in the heating wire are connected in series through the second sub-sections; in the display area, the number of first sub-segments in a second heating wire is different from the number of first sub-segments in a first heating wire, and / or the arrangement density of the first sub-segments in the second heating wire along a second direction is different from the arrangement density of the first sub-segments in the first heating wire along the second direction. The difference value of the lengths of the two heating wires is not larger than the first threshold value, so that the resistance and the heating power of the two heating wires are approximately equal, the heating uniformity of different areas in the display area is improved, and the display effect of the display panel at low temperature is improved.

Description

Technical Field

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

[0002] For LCD panels that may be used in low-temperature scenarios, such as automotive LCD panels, the viscosity of liquid crystal molecules increases and the response time increases at low temperatures, which can easily cause problems such as image quality degradation and motion blur. In severe cases, it can even cause the display panel to fail to display properly.

[0003] To address this, related technologies propose incorporating heating traces within the display panel to heat the liquid crystal molecules, thereby enabling normal display in low-temperature environments. However, with the diversification of display panel designs and the increasing prevalence of irregularly shaped panels, the limited wiring space in these areas results in significant differences in the resistance of heating traces located at different positions within the display area. This leads to varying heating power and uneven temperature distribution among the heating traces with different resistance values, negatively impacting the display performance at low temperatures. Summary of the Invention

[0004] In view of this, the present invention provides a display panel and a display device to solve the problem of uneven heating temperature distribution in the irregularly shaped display area of ​​the display panel, which affects the display effect of the display panel under low temperature conditions.

[0005] This invention provides a display panel, comprising:

[0006] A display area and a non-display area that at least partially surrounds the display area, wherein the display area is non-rectangular;

[0007] Multiple heating traces, with at least a portion of the heating traces located in the display area and both ends of the heating traces located in the non-display area;

[0008] Any heating trace includes at least two first segments, which extend along a first direction and are arranged along a second direction, with the first and second directions intersecting; each of the first segments in a heating trace is connected in series through the second segments.

[0009] The multiple heating traces include a first heating trace and a second heating trace. The number of first segments in the second heating trace is different from the number of first segments in the first heating trace, and / or the arrangement density of the first segments in the second heating trace along the second direction is different from the arrangement density of the first segments in the first heating trace along the second direction.

[0010] The difference between the length of the first heating trace and the length of the second heating trace is not greater than the first threshold.

[0011] Based on the same inventive concept, the present invention also provides a display device, including the display panel of the present invention.

[0012] Compared with the prior art, the display panel and display device provided by the present invention achieve at least the following beneficial effects:

[0013] The display panel provided by the present invention includes a display area and a non-display area that at least partially surrounds the display area. The display area is non-rectangular. The display panel also includes multiple heating traces, at least a portion of which are located in the display area, and both ends of which are located in the non-display area. Each heating trace includes at least two first segments, which extend along a first direction and are arranged along a second direction, with the first and second directions intersecting. The first segments in a heating trace are connected in series through second segments. The multiple heating traces include a first heating trace and a second heating trace. The number of first segments in the second heating trace is different from the number of first segments in the first heating trace, and / or the arrangement density of the first segments in the second heating trace along the second direction is different from the arrangement density of the first segments in the first heating trace along the second direction. The difference between the length of the first heating trace and the length of the second heating trace is not greater than a first threshold. This invention improves the uniformity of heating temperature in different areas of the display area and enhances the display effect of the display panel under low-temperature conditions by setting the number of first sub-segments in the second heating trace to be different from the number of first sub-segments in the first heating trace, and / or setting the arrangement density of the first sub-segments in the second heating trace along the second direction to be different from the arrangement density of the first sub-segments in the first heating trace along the second direction. Attached Figure Description

[0014] 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 these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of a display panel provided in this application;

[0016] Figure 2 This is a schematic diagram of the structure of a display panel in the prior art;

[0017] Figure 3 for Figure 2 The diagram shows the temperature distribution of the display panel.

[0018] Figure 4 for Figure 1 The diagram shows the temperature distribution of the display panel.

[0019] Figure 5 A schematic diagram of another display panel provided in this application;

[0020] Figure 6 A schematic diagram of another display panel provided in this application;

[0021] Figure 7 A schematic diagram of the structure of yet another display panel provided in this application;

[0022] Figure 8 A schematic diagram of another display panel provided in this application;

[0023] Figure 9 A schematic diagram of the structure of yet another display panel provided in this application;

[0024] Figure 10 A schematic diagram of another display panel provided in this application;

[0025] Figure 11 A schematic diagram of the structure of yet another display panel provided in this application;

[0026] Figure 12 A schematic diagram of another display panel provided in this application;

[0027] Figure 13 A schematic diagram of the structure of another display panel provided in this application;

[0028] Figure 14 A partial structural schematic diagram of a display panel provided in this application;

[0029] Figure 15 A partial structural schematic diagram of another display panel provided in this application;

[0030] Figure 16 A partial structural schematic diagram of another display panel provided in this application;

[0031] Figure 17 A partial structural schematic diagram of another display panel provided in this application;

[0032] Figure 18 A partial structural schematic diagram of another display panel provided in this application;

[0033] Figure 19 A partial structural schematic diagram of another display panel provided in this application;

[0034] Figure 20A partial structural schematic diagram of another display panel provided in this application;

[0035] Figure 21 A partial structural schematic diagram of another display panel provided in this application;

[0036] Figure 22 A partial structural schematic diagram of another display panel provided in this application;

[0037] Figure 23 A partial structural schematic diagram of another display panel provided in this application;

[0038] Figure 24 A partial structural schematic diagram of another display panel provided in this application;

[0039] Figure 25 A partial structural schematic diagram of another display panel provided in this application;

[0040] Figure 26 A partial structural schematic diagram of another display panel provided in this application;

[0041] Figure 27 A partial structural schematic diagram of another display panel provided in this application;

[0042] Figure 28 A schematic diagram of another display panel provided in this application;

[0043] Figure 29 This is a schematic diagram of the structure of a display device provided in this application.

[0044] Explanation of reference numerals in the attached figures:

[0045] 100: Display panel; AA: Display area; NA: Non-display area; AA1: Normal area; AA2: Irregular area; A1: First sub-display area; A2: Second sub-display area; 10: Heating trace; 11: First sub-segment; 12: Second sub-segment; 101: First heating trace; 102: Second heating trace; 20: Positive heating bus; 30: Negative heating bus; B1: First side; B2: Second side; B3: Third side; B4: Fourth side; X: First direction; Y: Second direction; B11: First sub-side; B12: Second sub-side; L1: First virtual line; A21: First type second sub-display area; L2: Second virtual line; B21: Third sub-side; B22: Fourth sub-edge; A22: Second sub-display area of ​​the second type; 21: First part; 22: Second part; 31: Third part; 32: Fourth part; 101-1: First heating trace of the first type; 101-2: First heating trace of the second type; Pixel: Sub-pixel; Scan: Gate line; Data: Data line; H: Row direction; V: Column direction; M1: First metal layer; M2: Second metal layer; M3: Third metal layer; M4: Fourth metal layer; R: Red sub-pixel; G: Green sub-pixel; B: Blue sub-pixel; PG: Pixel group; TP: Touch line; NA1: First area; NA2: Second area; NA3: Third area; S1: Data fan-out line; S2: Touch fan-out line; IC: Driver integrated circuit; S11: First data fan-out line; S12: Second data fan-out line; S3: Data connection line; Touch connection line S4; Display device 200. Detailed Implementation

[0046] 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 some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a way of distinguishing objects with the same attributes in the embodiments of this application. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements, but may include other elements not explicitly listed or inherent to those processes, methods, products, or apparatuses.

[0048] As described in the background section, with the diversification of display panel shape design, irregularly shaped display panels are becoming more and more common. Due to the limitation of wiring space in irregularly shaped display areas, the resistance values ​​of heating traces located in different positions of the display area vary greatly. This results in different heating power and uneven heating temperature distribution of heating traces with different resistance values, which affects the display effect of the display panel under low temperature conditions.

[0049] In view of this, this application provides a display panel, Figure 1 A schematic diagram of the structure of a display panel provided in this application is shown, such as... Figure 1 As shown, the display panel includes a display area AA and a non-display area NA that at least partially surrounds the display area AA. The display area AA is non-rectangular, that is, the display area AA is an irregularly shaped display area.

[0050] like Figure 1 As shown, the display panel also includes multiple heating traces 10, at least a portion of which are located in the display area AA, and both ends of which are located in the non-display area NA. Each heating trace 10 includes at least two first segments 11, which extend along a first direction X and are arranged along a second direction Y, with the first direction X and the second direction Y intersecting. Each first segment 11 in a heating trace 10 is connected in series through a second segment 12. That is, a heating trace 10 includes z first segments 11, where z ≥ 2 and z is an integer. These z first segments 11 extend along the first direction X and are arranged along the second direction Y, and adjacent first segments 11 are connected through a second segment 12, so that these z first segments 11 are connected in series.

[0051] It is understandable that, such as Figure 1 As shown, the display panel may also include a positive heating bus 20 and a negative heating bus 30 located in the non-display area NA. One end of the heating trace 10 is electrically connected to the positive heating bus 20, and the other end of the heating trace 10 is electrically connected to the negative heating bus 30. The positive heating bus 20 and the negative heating bus 30 are then electrically connected to a heating flexible circuit board (not shown in the figure) to apply voltage to both ends of the heating trace 10.

[0052] It is also understood that the heating trace 10 includes at least two first segments 11 extending along the first direction X and arranged along the second direction Y, that is, the heating trace 10 is partially wound around the display area AA, so that the heating trace 10 can heat the liquid crystal molecules in the display area AA more evenly.

[0053] Considering that the display area AA of the display panel is not rectangular, if all heating traces 10 adopt the same layout design, for example, Figure 2 As shown, Figure 2A schematic diagram of a display panel in the prior art is shown. It can be seen that both ends of each heating trace 10 are located in the non-display area NA on the same side of the display area AA. Each heating trace 10 includes two first segments 11 and a second segment 12 connecting the two first segments 11. Furthermore, the arrangement density of the first segments 11 of each heating trace 10 is the same. Therefore, the heating trace 10 located in the normal area AA1 and the heating trace 10 located in the irregular area AA2 have significantly different lengths. The normal area AA1 is a rectangular region within the display area AA, while the irregular area AA2 is a non-rectangular region within the display area AA. This results in different resistances R for the heating trace 10 located in the normal area AA1 and the heating trace 10 located in the irregular area AA2, while the voltage U applied to both ends of each heating trace 10 is equal. According to the power P=U... 2 If / R, the heating power of the heating trace 10 located in the normal area AA1 and the heating trace 10 located in the irregular area AA2 are different, and the corresponding areas of the heating trace 10 located in the normal area AA1 and the heating trace 10 located in the irregular area AA2 are also different, which leads to uneven heating temperature distribution in different areas of the irregular display area and affects the heating effect. Figure 3 It shows Figure 2 The temperature distribution diagram of the display panel shown clearly shows that the temperature distribution of the irregular area AA2 in the corner is significantly different from that of the normal area AA1. The irregular area AA2 in the corner has a small area and will overheat or even burn when heated.

[0054] Therefore, in the display panel provided in this application, optionally, such as Figure 1 As shown, the multiple heating traces 10 include a first heating trace 101 and a second heating trace 102. One of the first heating trace 101 and the second heating trace 102 can be located in the normal area AA1, and the other can be located in the irregular area AA2. By setting the number of first segments 11 in the second heating trace 102 to be different from the number of first segments 11 in the first heating trace 101, the difference between the length of the first heating trace 101 and the length of the second heating trace 102 is not greater than (i.e., less than or equal to) a first threshold. That is, the lengths of the first heating trace 101 and the second heating trace 102 are approximately equal, thereby making the resistance of these two heating traces approximately equal, and thus making the heating power of these two heating traces approximately equal, improving the uniformity of the heating temperature in different areas (such as the rectangular normal area AA1 and the non-rectangular irregular area AA2) within the irregular display area. Accordingly, Figure 4 It shows Figure 1 The temperature distribution diagram of the display panel shown is consistent with... Figure 3 The comparison shows that the temperature distribution in the irregular region AA2 is significantly more uniform than that in the normal region AA1.

[0055] Optional, such as Figure 5 As shown, Figure 5 This application illustrates another structural schematic diagram of a display panel provided in this application. Multiple heating traces 10 include a first heating trace 101 and a second heating trace 102. Both the first heating trace 101 and the second heating trace 102 are located in the irregularly shaped area AA2 (or the entire display area AA is the irregularly shaped area AA2). By setting the arrangement density of the first segment 11 in the second heating trace 102 along the second direction Y to be different from the arrangement density of the first segment 11 in the first heating trace 101 along the second direction Y, the difference between the length of the first heating trace 101 and the length of the second heating trace 102 is not greater than (i.e., less than or equal to) a first threshold. That is, the lengths of the first heating trace 101 and the second heating trace 102 are approximately equal, thereby making the resistance of these two heating traces approximately equal, and consequently, making the heating power of these two heating traces approximately equal, thus improving the uniformity of heating temperature in different areas within the irregularly shaped display area. Furthermore, as... Figure 5 As shown, multiple heating traces 10 can also be directly electrically connected to the heating flexible circuit board FPC1 to apply voltage to both ends of the heating traces 10.

[0056] Optional, such as Figure 6 As shown, Figure 6 This illustration shows a schematic diagram of another display panel structure provided in this application. Multiple heating traces 10 include a first heating trace 101 and a second heating trace 102. One of the first heating traces 101 and the second heating trace 102 can be located in the normal area AA1, and the other can be located in the irregular area AA2. The number of first segments 11 in the second heating trace 102 can be different from the number of first segments 11 in the first heating trace 101. The arrangement density of the first segments 11 in the second heating trace 102 along the second direction Y can also be different from the arrangement density of the first segments 11 in the first heating trace 101 along the second direction Y. This makes the difference between the length of the first heating trace 101 and the length of the second heating trace 102 not greater than (i.e. less than or equal to) a first threshold. That is, the length of the first dummy heating trace 101 and the length of the second heating trace 102 are approximately equal, thereby making the resistance of these two heating traces approximately equal, and thus making the heating power of these two heating traces approximately equal, so as to improve the uniformity of heating temperature in different areas within the irregular display area.

[0057] The arrangement density of the first sub-segment 11 in the heating trace 10 along the second direction Y is closely related to the spacing between two adjacent first sub-segments 11 in the heating trace 10. The larger the spacing between two adjacent first sub-segments 11 in the heating trace 10, the smaller the arrangement density of the first sub-segment 11 in the heating trace 10 along the second direction Y, and the sparser the arrangement of the first sub-segment 11 in the heating trace 10 along the second direction Y. Conversely, the smaller the spacing between two adjacent first sub-segments 11 in the heating trace 10, the larger the arrangement density of the first sub-segment 11 in the heating trace 10 along the second direction Y, and the denser the arrangement of the first sub-segment 11 in the heating trace 10 along the second direction Y.

[0058] In summary, the display panel provided in this application, for irregularly shaped display areas, by setting the number of first segments 11 in the second heating trace 102 to be different from the number of first segments 11 in the first heating trace 101, and / or, the arrangement density of the first segments 11 in the second heating trace 102 along the second direction Y to be different from the arrangement density of the first segments 11 in the first heating trace 101 along the second direction Y, makes the difference in length between the two heating traces no greater than (i.e. less than or equal to) a first threshold, that is, the lengths of the two heating traces are approximately equal, thereby making the resistance of the two heating traces approximately equal, and further making the heating power of the two heating traces approximately equal, thereby improving the heating uniformity of different areas in the irregularly shaped display area and improving the display effect of the display panel under low temperature conditions.

[0059] It is understood that the display panel includes multiple sub-pixels arranged in an array along the row and column directions. Optionally, the first threshold may not be greater than the length of 10 sub-pixels, that is, the difference between the length of the first heating trace 101 and the length of the second heating trace 102 in the display panel is less than or equal to the length of 10 sub-pixels, so that the heating power of the first heating trace 101 and the heating power of the second heating trace 102 are approximately equal.

[0060] In the display panel, the lengths of the first heating trace 101 and the second heating trace 102 are approximately equal, ensuring that the heating power of the first heating trace 101 and the heating power of the second heating trace 102 are approximately equal. Furthermore, as follows... Figure 5 and Figure 6As shown, the difference between the area S1 of the display area corresponding to the region enclosed by the first heating trace 101 and the area S2 of the display area corresponding to the region enclosed by the second heating trace 102 can be set to be no greater than (i.e. less than or equal to) a second threshold. That is, the area S1 of the display area corresponding to the region enclosed by the first heating trace 101 and the area S2 of the display area corresponding to the region enclosed by the second heating trace 102 are approximately equal. In this way, the heating power per unit area (i.e., the heat output per unit area) of the display areas corresponding to the first heating trace 101 and the second heating trace 102 is approximately the same, thereby further improving the heating uniformity of different areas in the irregular display area.

[0061] It is understandable that the area of ​​the display area corresponding to the region enclosed by the heating trace 10 is the area of ​​the display area corresponding to the entire area enclosed by each of the two adjacent first sub-segments 11 in the heating trace 10, and is also the area of ​​the multiple sub-pixels corresponding to the area enclosed by the heating trace 10.

[0062] Optionally, the second threshold may not be greater than 10% of the area S1 of the display area corresponding to the region enclosed by the first heating trace 101, or the second threshold may not be greater than 10% of the area S2 of the display area corresponding to the region enclosed by the second heating trace 102, so that the heating amount per unit area of ​​the corresponding region of the display area by the first heating trace 101 and the heating amount per unit area of ​​the corresponding region of the display area by the second heating trace 102 are basically the same.

[0063] The following examples illustrate in detail how the first heating trace 101 and the second heating trace 102 are designed for different irregularly shaped display areas.

[0064] Optionally, in some embodiments of this application, such as Figure 5 As shown, in the display panel, the display area AA includes a first side B1 and a second side B2 arranged opposite to each other along the first direction X, and the first side B1 and the second side B2 are not parallel; both ends of the first heating trace 101 and both ends of the second heating trace 102 are located on one side of the first side B1 of the display area AA; both ends of the first sub-segment 11 in the first heating trace 101 and both ends of the first sub-segment 11 in the second heating trace 102 extend toward the first side B1 and the second side B2 of the display area AA, respectively; thus, both the first heating trace 101 and the second heating trace 102 start from the first side B1 of the display area AA, wrap around the first side B1 and the second side B2 of the display area AA at least once, and finally return to the first side B1 of the display area AA to heat the corresponding area of ​​the display area.

[0065] It is understandable that, since the first side B1 and the second side B2 of the display area AA are not parallel (i.e., the display area AA is an irregularly shaped display area), and both the first heating trace 101 and the second heating trace 102 are wound between the non-parallel first side B1 and the second side B2 of the display area AA, when the number of first segments 11 in the second heating trace 102 is equal to the number of first segments 11 in the first heating trace 101, the average length of the first segments 11 in the second heating trace 102 is inconsistent with the average length of the first segments 11 in the first heating trace 101. Specifically, the average length of the first segments 11 in the second heating trace 102 is less than the average length of the first segments 11 in the first heating trace 101. Therefore, in order to ensure that the difference between the length of the first heating trace 101 and the length of the second heating trace 102 is not greater than a first threshold value, [further measures are needed]. The arrangement density of the first sub-segment 11 in the second heating trace 102 along the second direction Y can be set to be less than the arrangement density of the first sub-segment 11 in the first heating trace 101 along the second direction Y. In this way, by appropriately increasing the spacing between two adjacent first sub-segments 11 in the second heating trace 102, that is, appropriately increasing the length of the second sub-segment 12 connecting two adjacent first sub-segments 11 in the second heating trace 102, the length of the first heating trace 101 and the length of the second heating trace 102 are approximately equal. This makes the heating power of the first heating trace 101 and the heating power of the second heating trace 102 approximately equal. It also makes the area of ​​the display area corresponding to the region enclosed by the first heating trace 101 and the area of ​​the display area corresponding to the region enclosed by the second heating trace 102 approximately equal, thereby improving the heating uniformity of the display panel as a whole.

[0066] Optional, such as Figure 5 As shown, both the first heating trace 101 and the second heating trace 102 include two first segments 11. The arrangement density of the first segments 11 in the second heating trace 102 along the second direction Y is less than that in the first heating trace 101. Specifically, the spacing between the two first segments 11 in the second heating trace 102 is greater than that in the first heating trace 101, making the length of the first heating trace 101 and the length of the second heating trace 102 approximately equal. This makes the heating power of the first heating trace 101 and the heating power of the second heating trace 102 approximately equal. It also makes the area of ​​the display area corresponding to the region enclosed by the first heating trace 101 and the area of ​​the display area corresponding to the region enclosed by the second heating trace 102 approximately equal, thus improving the heating uniformity of the display panel as a whole.

[0067] Understandably, in Figure 5In the case of the display panel shown, if the first side B1 and the second side B2 of the display area AA are not parallel, then the first heating trace 101 and the second heating trace 102 can be any two heating traces with unequal average lengths of the first segment 11, and are not limited to... Figure 3 The first heating trace 101 and the second heating trace 102 are marked in the figure.

[0068] Optionally, in some embodiments of this application, such as Figure 1 As shown, in the display panel, the display area AA includes a first sub-display area A1 and a second sub-display area A2. Optionally, the first sub-display area A1 is a rectangular, normal area AA1, and the second sub-display area A2 is a non-rectangular, irregularly shaped area AA2; (Comparison) Figure 2 It is known that if the heating traces 10 at least partially located in the second sub-display area A2 and the heating traces 10 at least partially located in the first sub-display area A1 adopt the same layout design, then the length difference between the heating traces at least partially located in the second sub-display area A2 and the heating traces at least partially located in the first sub-display area A1 will be large. Therefore, the heating traces 10 at least partially located in the first sub-display area A1 can be set as the first heating trace 101, which includes m first sub-segments 11, and the heating traces 10 at least partially located in the second sub-display area A2 can be set as the second heating trace 102, which includes n first sub-segments 11, where n > m, m ≥ 2, n ≥ 4, and m and n are both even numbers. With this setting, the number of first sub-segments 11 in the second heating trace 102 at least partially located in the second sub-display area A1 (i.e., the irregular area AA2) will be significantly reduced. The quantity n is different from the number m of the first segment 11 in the first heating trace 101 that is at least partially located in the first sub-display area A1 (i.e., normal area AA1), so that the length of the second heating trace 102 that is at least partially located in the second sub-display area A1 (i.e., irregular area AA2) is approximately equal to the length of the first heating trace 101 that is at least partially located in the first sub-display area A1 (i.e., normal area AA1). This makes the heating power of the second heating trace 102 that is at least partially located in the second sub-display area A1 (i.e., irregular area AA2) approximately equal to the heating power of the first heating trace 101 that is at least partially located in the first sub-display area A1 (i.e., normal area AA1). It also makes the area of ​​the display area corresponding to the area enclosed by the first heating trace 101 approximately equal to the area of ​​the display area corresponding to the area enclosed by the second heating trace 102, thereby improving the heating uniformity of the display panel as a whole.

[0069] Furthermore, both the first heating trace 101 and the second heating trace 102 include an even number of first sub-segments 11. That is, the two ends of the first heating trace 101 are located on the same side of the display area AA, and the two ends of the second heating trace 102 are also located on the same side of the display area AA. This facilitates the setting of the positive heating bus 20, the negative heating bus 30, and the heating flexible circuit board.

[0070] Specifically, such as Figure 1 As shown, the first heating trace 101, which is at least partially located in the first sub-display area A1 (i.e., the normal area AA1), may include two first segments 11, i.e., m=2, and the length of each first segment 11 is d0, so the length of the first heating trace 101 is approximately 2d0; the second heating trace 102, which is at least partially located in the second sub-display area A1 (i.e., the irregular area AA2), includes n first segments 11, where n is an even number greater than 2, i.e., the second heating trace 102 adopts a broken line design with n first segments 11. If the lengths of the n first segments 11 are d1, d2, ..., dx, ..., dn respectively, then the length of the second heating trace 102 is approximately d1 + d2 + ... + dx + dn. By adjusting the number n of the first segments 11 in the second heating trace 102, the sum of the lengths d1, d2, ..., dx, ..., dn of the n first segments 11 in the second heating trace 102 can be approximately equal to the sum of the lengths d0 of the m (e.g., 2) first segments 11 in the first heating trace 101, i.e., d1 + d2 + ... + dx + dn = 2d0. This makes the length of the second heating trace 102 approximately equal to the length of the first heating trace 101, and consequently, makes the heating power of the second heating trace 102 approximately equal to the heating power of the first heating trace 101. It also makes the area of ​​the display area corresponding to the region enclosed by the first heating trace 101 approximately equal to the area of ​​the display area corresponding to the region enclosed by the second heating trace 102, thereby improving the overall heating uniformity of the display panel.

[0071] It should be noted that this is mainly achieved by adjusting the number of first segments 11 in the first heating trace 101 and the second heating trace 102, so that the length of the second heating trace 102 is approximately equal to the length of the first heating trace 101. In the calculation, the sum of the lengths of all first segments 11 in the first heating trace 101 is equivalent to the length of the first heating trace 101, and the sum of the lengths of all second segments 12 in the second heating trace 102 is equivalent to the length of the second heating trace 102. The lengths of the second segments 12 in the first heating trace 101 and the second heating trace 102 are omitted. In practical applications, the total length of each second segment 12 in the first heating trace 101 and / or the total length of each second segment 12 in the second heating trace 102 can also be adjusted to make the length of the second heating trace 102 closer to the length of the first heating trace 101.

[0072] In practical applications, even if the number of first segments 11 in the first heating trace 101 and the second heating trace 102 is adjusted, the length of the second heating trace 102 and the length of the first heating trace 101 are generally not exactly equal. Therefore, further optional adjustments can be made, such as... Figure 6As shown, by combining the arrangement density of the first sub-segment 11 in the second heating trace 102 along the second direction Y with the arrangement density of the first sub-segment 11 in the first heating trace 101 along the second direction Y, the lengths of the second heating trace 102 and the first heating trace 101 and the area of ​​the display area corresponding to the enclosed area can be made closer, thereby making the heating power per unit area of ​​the second heating trace 102 and the first heating trace 101 closer, and further improving the heating uniformity of the display panel.

[0073] Of course, by adjusting the number of first segments 11 in the first heating trace 101 and the second heating trace 102 so that the lengths of the second heating trace 102 and the first heating trace 101 and the area of ​​the display area corresponding to the enclosed region are approximately equal, the arrangement density of the first segments 11 in the second heating trace 102 along the second direction Y can also be set to be equal to the arrangement density of the first segments 11 in the first heating trace 101 along the second direction Y. Figure 1 As shown, this is to achieve the effect of uniform heating of the display panel.

[0074] Further optional, in some embodiments of this application, such as Figure 1 , Figure 6 , Figures 7-10 As shown, Figures 7-10 The following are schematic diagrams of the structures of four other display panels provided in this application. It can be seen that the display area AA includes a first side B1 and a second side B2 arranged opposite each other along a first direction X, and a third side B3 connecting the first side B1 and the second side B2. The angle between the third side B3 and the first side B1 is acute, and the angle between the third side B3 and the second side B2 is obtuse. The first side B1 is divided into a first sub-side B11 and a second sub-side B12 by a first virtual line L1, which extends along the first direction X. The first sub-display area A1 (e.g., a rectangular normal area AA1) includes the first sub-side B11, the second side B2, and the first virtual line L1. The second sub-display area A... 2 includes at least one first type second sub-display area A21, the first type second sub-display area A21 is an irregular area, the first type second sub-display area A21 includes a second sub-edge B12, a third edge B3 and a first virtual line L1; both ends of the first heating trace 101 and both ends of the second heating trace 102 in the first type second sub-display area A21 are located on one side of the first edge B1 of the display area AA; both ends of the first sub-segment 11 in the first heating trace 101 extend toward the first sub-edge B11 and the second edge B2 respectively; both ends of the first sub-segment 11 of the second heating trace 102 in the first type second sub-display area A21 extend toward the second sub-edge B12 and the third edge B3 respectively.

[0075] Optionally, the first type of second sub-display area A21 can be one, located on one side of the first sub-display area A1 along the second direction Y, such as... Figure 1 , Figures 6-8 and Figure 10 As shown; alternatively, there can also be two first-type second sub-display areas A21, with the two first-type second sub-display areas A21 located on opposite sides of the first sub-display area A1 along the second direction Y, as shown. Figure 9 As shown.

[0076] Optionally, the first type of second sub-display area A21 can be triangular, such as... Figure 1 , Figures 6-9 As shown; in this case, the third side B3 of the display area AA can be a straight side that forms an acute angle with the first side B1 and an obtuse angle with the second side B2; where, when the first type of second sub-display area A21 is a triangle, let the angle between the third side B3 and the first side B1 of the display area AA be θ, and the length of the second sub-side B12 in the first side B1 be D0, then when the first virtual line L1 is perpendicular to the first side B1, the length d0 of the first sub-segment 11 in the first heating trace 101 can be approximately obtained as d0 = D0 × tanθ. Similarly, the length of the second heating trace 102 in the second heating trace can be approximately obtained as d0 = D0 × tanθ. The length dx of the first sub-segment 11 is equal to Dx × tanθ, where Dx is the distance between the endpoint of the first side B1 and the location of the first sub-segment 11 in the second heating trace 102. Therefore, the sum of the lengths d1, d2…dx…dn of the n first sub-segments 11 in the second heating trace 102 is approximately equal to the sum of the lengths d0 of the m (e.g., 2) first sub-segments 11 in the first heating trace 101, i.e., d1 + d2 + … + dx… + dn = 2d0, making the length of the second heating trace 102 approximately equal to the length of the first heating trace 101. Alternatively, the third side B3 of the display area AA can also be an arc-shaped side forming an acute angle with the first side B1 and an obtuse angle with the second side B2, such as… Figure 10 As shown.

[0077] It is understandable that, in a display area AA comprising a first side B1 and a second side B2 positioned opposite each other along a first direction X, and a third side B3 connecting the first side B1 and the second side B2, wherein the third side B3 forms an acute angle with the first side B1 and an obtuse angle with the second side B2, the first side B1 can be divided into a first sub-side B11 and a second sub-side B12 using a first virtual line L1. This allows the first sub-side B11, the second side B2, and the first virtual line L1 to form a first sub-display area A1, which can be rectangular. The second sub-side B12, the third side B3, and the first sub-side B11 can then form a rectangular sub-display area A1. A virtual line L1 encloses a first type of second sub-display area A21. The first type of second sub-display area A21 is non-rectangular, that is, the display area AA includes the first sub-display area A1 and the first type of second sub-display area A21. By setting the number and / or arrangement density of the first sub-segments 11 of the heating traces 10 in the first type of second sub-display area A21 and the first sub-display area A1 to be different, the length of the heating traces 10 in the first type of second sub-display area A21 and the first sub-display area A1 and the area of ​​the display area corresponding to the enclosed area are approximately equal, thereby improving the heating uniformity of the display panel.

[0078] It is also understandable that, in the case where the display area AA includes a first sub-display area A1 and a first type of second sub-display area A21, considering that both ends of the first heating trace 101 and both ends of the second heating trace 102 in the first type of second sub-display area A21 can be located on one side of the first side B1 of the display area AA, therefore, referring to Figure 1 , Figure 6 , Figure 7 and Figure 10 As shown, the positive heating bus 20 and negative heating bus 30 located in the non-display area NA of the display panel can be arranged on one side of the first side B1 of the display area AA and extend along the first side B1, so that one end of each heating line 10 is electrically connected to the positive heating bus 20 and the other end of each heating bus 10 is electrically connected to the negative heating bus 20. Additionally, as... Figure 8 and Figure 9 As shown, the heating trace 10 in the display panel can also be directly connected to the heating flexible circuit board FPC1.

[0079] Optionally, in some embodiments of this application, such as Figure 1 , Figure 6 , Figure 10 , Figure 11 and Figure 12 As shown, Figure 11 and Figure 12The following are schematic diagrams of two more display panels provided in this application. As can be seen, the display area AA includes a first side B1 and a second side B2 arranged opposite each other along a first direction X, and a fourth side B4 connecting the first side B1 and the second side B2. The angle between the fourth side B4 and the first side B1 is obtuse, and the angle between the fourth side B4 and the second side B2 is acute. The second side B2 is divided into a third sub-side B21 and a fourth sub-side B22 by a second virtual line L2 extending along the first direction X. The first sub-display area A1 (e.g., a rectangular normal area AA1) includes the first side B1, the third sub-side B21, and the second virtual line L2. The second sub-display area A2 includes at least one... The second sub-display area A22 is a non-circular area. The second sub-display area A22 includes a fourth sub-side B22, a fourth side B4, and a second virtual line L2. The two ends of the first heating trace 101 are located on one side of the first side B1 of the display area AA. The two ends of the second heating trace 102 in the second sub-display area A22 are located on one side of the fourth side B4 of the display area AA. The two ends of the first sub-segment 11 in the first heating trace 101 extend towards the first side B1 and the third sub-side B21, respectively. The two ends of the first sub-segment AA of the second heating trace 102 in the second sub-display area A22 extend towards the fourth side B4 and the fourth sub-side B22, respectively.

[0080] Optionally, the second type of second sub-display area A22 can be one, located on one side of the first sub-display area A1 along the second direction Y, such as... Figure 1 , Figure 6 , Figure 10 and Figure 11 As shown; alternatively, there can be two second-type second sub-display areas A22, located on opposite sides of the first sub-display area A1 along the second direction Y, as shown. Figure 12 As shown.

[0081] Optionally, the second sub-display area A22 of the second type can be triangular, such as... Figure 1 , Figure 6 , Figure 11 and Figure 12 As shown; in this case, the fourth side B4 of the display area AA can be a straight side that forms an obtuse angle with the first side B1 and an acute angle with the second side B2; alternatively, the fourth side B4 of the display area AA can also be an arc-shaped side that forms an obtuse angle with the first side B1 and an acute angle with the second side B2, such as... Figure 10 As shown.

[0082] It is understandable that, in a display area AA comprising a first side B1 and a second side B2 positioned opposite each other along the first direction X, and a fourth side B4 connecting the first side B1 and the second side B2, wherein the fourth side B4 forms an obtuse angle with the first side B1 and an acute angle with the second side B2, the second side B2 can be divided into a third sub-side B21 and a fourth sub-side B22 using a second virtual line L2. This allows the first side B1, the third sub-side B21, and the second virtual line L2 to enclose a first sub-display area A1, which can be rectangular. The fourth sub-side B22, the third sub-side B21, the fourth sub-side B22, and the fourth sub-side B22 can be rectangular. The four sides B4 and the second virtual line L2 form a second type of second sub-display area A22. The second type of second sub-display area A22 is non-rectangular, that is, display area AA includes the first sub-display area A1 and the second type of second sub-display area A21. By setting the number and / or arrangement density of the first sub-segments of the heating traces 10 in the second type of second sub-display area A22 and the first sub-display area A1 to be different, the length and corresponding area of ​​the heating traces 10 in the second type of second sub-display area A22 and the first sub-display area A1 are approximately equal, thereby improving the heating uniformity of the display panel.

[0083] It is also understandable that, in the case where the display area AA includes a first sub-display area A1 and a second type of second sub-display area A21, considering that the two ends of the first heating trace 101 can be located on one side of the first side B1 of the display area AA, and the two ends of the second heating trace 102 in the second type of second sub-display area A22 can be located on one side of the fourth side B4 of the display area AA, therefore, referring to Figure 1 , Figure 6 , Figures 10-12 As shown, the positive heating bus 20 located in the non-display area NA of the display panel can be configured to include a first part 21 and a second part 22, and the negative heating bus 30 located in the non-display area NA of the display panel can be configured to include a third part 31 and a fourth part 32. The first part 21 of the positive heating bus 20 and the third part 31 of the negative heating bus 30 are located on one side of the first side B1 of the display area AA and extend along the first side B1; the second part 22 of the positive heating bus 20 and the fourth part 32 of the negative heating bus 30 are located on one side of the fourth side B4 of the display area AA and extend along the fourth side B4, so that one end of each heating bus 10 is electrically connected to the positive heating bus 20 and the other end of each heating bus 10 is electrically connected to the negative heating bus 20.

[0084] Optionally, in some embodiments of this application, such as Figure 1 , Figure 6 and Figure 10As shown, the display area AA includes a first side B1 and a second side B2 arranged opposite each other along a first direction X, and a third side B3 and a fourth side B4 connecting the first side B1 and the second side B2; the angle between the third side B3 and the first side B1 is an acute angle, and the angle between the third side B3 and the second side B2 is an obtuse angle; the angle between the fourth side B4 and the first side B1 is an obtuse angle, and the angle between the fourth side B4 and the second side B2 is an acute angle; the first side B1 is divided into a first sub-side B11 and a second sub-side B12 by a first virtual line L1. Virtual line L1 extends along the first direction X; the second side B2 is divided into a third sub-side B21 and a fourth sub-side B22 by the second virtual line L2, which extends along the first direction X; the first sub-display area A1 (e.g., a rectangular normal area AA1) includes the first sub-side B11, the third sub-side B21, the first virtual line L1, and the second virtual line L2; the second sub-display area A2 includes a first type of second sub-display area A21 and a second type of second sub-display area A22, wherein the first type of second sub-display area A21 is... The irregularly shaped area, the first type of second sub-display area A21 includes a second sub-edge B12, a third edge B3 and a first virtual line L1; the second type of second sub-display area A22 is an irregularly shaped area, the second type of second sub-display area A22 includes a fourth sub-edge B22, a fourth edge B4 and a second virtual line L2; the two ends of the first heating trace 101 and the two ends of the second heating trace 102 in the first type of second sub-display area A21 are located on one side of the first edge B1 of the display area AA; the second heating trace in the second type of second sub-display area A22... Both ends of the trace 102 are located on one side of the fourth side B4 of the display area AA; the two ends of the first sub-segment 11 of the first heating trace 101 extend toward the first sub-side B11 and the third sub-side B21 respectively; the two ends of the first sub-segment 11 of the second heating trace 102 in the first type of second sub-display area A21 extend toward the second sub-side B12 and the third side B3 respectively; the two ends of the first sub-segment 11 of the second heating trace 102 in the second type of second sub-display area A22 extend toward the fourth side B4 and the fourth sub-side B22 respectively.

[0085] In this case, the first type of second sub-display area A21 and the second type of second sub-display area A22 are located on opposite sides of the first sub-display area A1 along the second direction Y, and are a combination of the aforementioned display area AA including the first sub-display area A1 and the first type of second sub-display area A21 and the display area AA including the first sub-display area A1 and the second type of second sub-display area A22.

[0086] Optionally, the first type of second sub-display area A21 can be triangular, and the second type of second sub-display area A22 can be triangular, such as... Figure 1 and Figure 6As shown; in this case, the third side B3 of the display area AA can be a straight side forming an acute angle with the first side B1 and an obtuse angle with the second side B2, and the fourth side B4 of the display area AA can be a straight side forming an obtuse angle with the first side B1 and an acute angle with the second side B2; alternatively, the third side B3 of the display area AA can also be an arc-shaped side forming an acute angle with the first side B1 and an obtuse angle with the second side B2, and the fourth side B4 of the display area AA can also be an arc-shaped side forming an obtuse angle with the first side B1 and an acute angle with the second side B2, such as... Figure 10 As shown.

[0087] Understandably, when the display area AA includes a first sub-display area A1, a first type of second sub-display area A21, and a second type of second sub-display area A22, the first sub-display area A1 can be rectangular, while the first type of second sub-display area A21 and the second type of second sub-display area A22 are non-rectangular. The number and / or arrangement density of the first sub-segments 11 of the heating traces 10 in the first type of second sub-display area A21 and the first sub-display area A1 can be set to be different, so that the length of the heating traces 10 in the first type of second sub-display area A21 and the first sub-display area A1 and the area of ​​the display area corresponding to the enclosed region are approximately equal. Similarly, the number and / or arrangement density of the first sub-segments of the heating traces 10 in the second type of second sub-display area A22 and the first sub-display area A1 can be set to be different, so that the length of the heating traces 10 in the second type of second sub-display area A22 and the first sub-display area A1 and the area of ​​the display area corresponding to the enclosed region are approximately equal, thereby improving the heating uniformity of the display panel.

[0088] It is also understandable that, in the case where the display area AA includes a first sub-display area A1, a first type of second sub-display area A21, and a second type of second sub-display area A22, considering that both ends of the first heating trace 101 and both ends of the second heating trace 102 in the first type of second sub-display area A21 can be located on one side of the first side B1 of the display area AA, and both ends of the second heating trace 102 in the second type of second sub-display area A22 can be located on one side of the fourth side B4 of the display area AA, therefore, referring to Figure 1 , Figure 6 , Figures 10-12As shown, the positive heating bus 20 located in the non-display area NA of the display panel can be configured to include a first part 21 and a second part 22, and the negative heating bus 30 located in the non-display area NA of the display panel can be configured to include a third part 31 and a fourth part 32. The first part 21 of the positive heating bus 20 and the third part 31 of the negative heating bus 30 are located on one side of the first side B1 of the display area AA and extend along the first side B1; the second part 22 of the positive heating bus 20 and the fourth part 32 of the negative heating bus 30 are located on one side of the fourth side B4 of the display area AA and extend along the fourth side B4, so that one end of each heating bus 10 is electrically connected to the positive heating bus 20 and the other end of each heating bus 10 is electrically connected to the negative heating bus 30.

[0089] Regardless of whether the display area AA includes only the first sub-display area A1 and the first type of second sub-display area A21, or only the first sub-display area A1 and the second type of second sub-display area A22, or includes the first sub-display area A1, the first type of second sub-display area A21, and the second type of second sub-display area A22, it is optional, such as Figure 1 , Figures 6-12 As shown, along the direction close to the first sub-display area A1, the length of each first segment 11 of the second heating trace 102 in the second sub-display area A2 gradually increases, and correspondingly, along the direction close to the first sub-display area A1, the number of each first segment 11 of the second heating trace 102 in the second sub-display area A2 gradually decreases.

[0090] Regardless of whether the display area AA includes only the first sub-display area A1 and the first type of second sub-display area A21, or only the first sub-display area A1 and the second type of second sub-display area A22, or includes the first sub-display area A1, the first type of second sub-display area A21, and the second type of second sub-display area A22, it is optional, such as Figure 1 , Figures 6-12 As shown, the first side B1 and the second side B2 of the display area AA can be set in parallel. Since the two ends of the first segment 11 of the first heating trace 101 in the first sub-display area A1 extend towards the first side B1 and the second side B2 respectively, each first segment 11 in the first sub-display area A1 can be evenly arranged along the second direction Y, simplifying the layout design of each first segment 11 in the first sub-display area A1. Understandably, in this case, the length of the first heating trace 101 in the first sub-display area A1 can be designed first, and then, using the length of the first heating trace 101 as a reference, a zigzag design can be made for the second heating trace 102 in the second sub-display area A2, so that the lengths of the second heating trace 102 and the first heating trace 101, and the area of ​​the display area corresponding to the enclosed region, are approximately equal, improving the heating uniformity of the display panel.

[0091] Regardless of whether the display area AA includes only the first sub-display area A1 and the first type of second sub-display area A21, or only the first sub-display area A1 and the second type of second sub-display area A22, or includes the first sub-display area A1, the first type of second sub-display area A21, and the second type of second sub-display area A22, another option is, such as Figure 13 As shown, Figure 13 A schematic diagram of another display panel provided in this application embodiment is shown. It can be seen that the first side B1 and the second side B2 of the display area AA are not parallel. In this case, not only is the second sub-display area A2 a non-rectangular irregular area AA2, but the first sub-display area A1 is also a non-rectangular irregular area AA2. The first heating traces 101 in the first sub-display area A1, which use the same arrangement, also have different lengths, resulting in different resistances and heating power. In this case, the second heating trace 102 in the second sub-display area A2 can continue to use a broken line design, while the first heating trace 101 in the first sub-display area A1 can refer to... Figure 5 In the heating trace design, specifically, in the first sub-display area A1, the number of first segments 11 of each first heating trace 101 is equal. For example, each first heating trace 101 includes two first segments 11. The first heating trace 101 includes a first type of first heating trace 101-1 and a second type of first heating trace 101-2. The average length of the first segment 11 in the second type of first heating trace 101-2 is less than the average length of the first segment 11 in the first type of first heating trace 101-1. The arrangement density of the first segment 11 in the second type of first heating trace 101-2 along the second direction Y is less than the arrangement density of the first segment 11 along the second direction Y in the first type of first heating trace 101-1.

[0092] In other words, although the average lengths of the first segments 11 of the first type of first heating traces 101-1 and the second type of first heating traces 101-2 in the first display area A1 are different, by adjusting the arrangement density of the first segments 11 of the first type of first heating traces 101-1 and the second type of first heating traces 101-2, specifically by adjusting the spacing of the first segments 11 of the first type of first heating traces 101-1 and the second type of first heating traces 101-2, the lengths of the first type of first heating traces 101-1 and the second type of first heating traces 101-2 are approximately equal. This makes the heating power of the first type of first heating traces 101-1 and the second type of first heating traces 101-2 approximately equal, and also makes the area of ​​the display area corresponding to the area enclosed by the first type of first heating traces 101-1 and the second type of first heating traces 101-2 approximately equal, thereby improving the heating uniformity of the display panel.

[0093] It is understandable that a display panel includes sub-pixels arranged in an array along the row and column directions. The display panel also includes multiple gate lines and multiple data lines. The gate lines extend along the row direction, and the data lines extend along the column direction. The gate lines and data lines intersect to form a precise addressing matrix, allowing for independent and controllable charging of each sub-pixel, thereby combining to form the displayed image. When adding heating traces to the display panel to heat corresponding areas, the film layers and locations of the heating traces, gate lines, and data lines need to be properly configured. The specific configuration of the heating traces, gate lines, and data lines in the display panel is explained below. Specifically, the portion of heating trace 10 located in display area AA is situated on the same metal layer. The following mainly describes the configuration of heating trace 10 located in display area AA.

[0094] Optionally, in some embodiments of this application, such as Figures 14-18 As shown, Figures 14-18 The illustration shows partial structural diagrams of five more display panels provided in this application. As can be seen, the display panel includes sub-pixels arranged in an array along the row direction H and the column direction V. The display panel also includes multiple gate lines Scan and multiple data lines Data. The gate lines Scan extend along the row direction H, and the data lines Data extend along the column direction V. Each row of sub-pixels is electrically connected to at least one gate line Scan, and at least one column of sub-pixels is electrically connected to one data line Data. The extension direction of the first segment 11 in the heating trace 10 is the same as the extension direction of the gate line Scan, that is, the first segment 11 in the heating trace 10 extends along the row direction H. (Refer to...) Figure 8 As shown, the heating trace 10 of the display area AA can be directly connected to the heating flexible circuit board FPC1 along the row direction H to obtain a heating signal and realize heating.

[0095] Based on the premise that the extension direction of the first segment 11 in the heating trace 10 is the same as the extension direction of the gate line Scan, optionally, in some embodiments of this application, such as Figure 14 and Figure 15As shown, the display panel includes a substrate and a first metal layer M1 and a second metal layer M2 stacked on one side of the substrate; gate lines Scan are located in the first metal layer M1, data lines Data are located in the second metal layer M2, and heating traces 10 are located in the first metal layer M1, that is, heating traces 10 and gate lines Scan can be arranged in the same direction and on the same layer, both located in the first metal layer M1; furthermore, the first sub-segment 11 of the heating trace 10 can be located between at least some adjacent gate lines Scan. Depending on the arrangement density of the first sub-segment 11 of each heating trace 10, the first sub-segment 11 of the heating trace 10 can be located between each adjacent gate line Scan, or it can be located between some adjacent gate lines Scan; and since the first sub-segment 11 of the heating trace 10 is located between at least some adjacent gate lines Scan, and the gate lines Scan are usually located on one side of a row of sub-pixels Pixel along the column direction V, the first sub-segment 11 of the heating trace 10 overlaps with a row of sub-pixels Pixel in the direction perpendicular to the plane of the substrate.

[0096] Among them, optional, such as Figure 14 and Figure 15 As shown, any two adjacent sub-pixels in a row of sub-pixels emit different colors. For example, a row of sub-pixels is arranged periodically according to red sub-pixels R, green sub-pixels G, and blue sub-pixels B. Meanwhile, all sub-pixels in a column of sub-pixels emit the same color. For example, a column of sub-pixels can be a red sub-pixel column, a green sub-pixel column, or a blue sub-pixel column.

[0097] Optional, such as Figure 14 As shown, a row of sub-pixels can be electrically connected to a gate line Scan, meaning the sub-pixel adopts a single gate line architecture. Simultaneously, a column of sub-pixels is electrically connected to a data line Data. Specifically, a sub-pixel can include an independent thin-film transistor (TFT) for switching control. When a row of sub-pixels is scanned, the voltage signal on the gate line Scan corresponding to that row of sub-pixels turns on the TFT in that row of sub-pixels, causing the voltage signal on the data line Data to charge the sub-pixel through the conducting TFT. After charging is complete, the voltage signal on the gate line Scan turns off the TFT in that row of sub-pixels, and the voltage signal on the data line Data remains within that row of sub-pixels until the next frame refresh.

[0098] Or, such as Figure 15As shown, a row of sub-pixels can also be electrically connected to two gate lines (Scan), meaning the sub-pixel adopts a dual-gate-line architecture. The two gate lines (Scan) electrically connected to a row of sub-pixels can be located on both sides of the row of sub-pixels along the column direction X. Specifically, each sub-pixel includes an independent thin-film transistor (TFT) for switching control. Two adjacent sub-pixels in a row are electrically connected to different gate lines (Scan), meaning a row of sub-pixels is electrically connected to a total of two gate lines (Scan). Furthermore, for two adjacent sub-pixels in a row, one is electrically connected to one gate line (Scan), and the other is electrically connected to the other gate line (Scan). Thus, a row of sub-pixels... Two adjacent sub-pixels in a row can share a single data line (Data). For example, two adjacent red sub-pixels (R) and green sub-pixels (G) in a row, during time period 1, the gate line Scan controlling the red sub-pixel R is activated, and the voltage signal on the data line Data charges only the red sub-pixel R. Similarly, during time period 2, the gate line Scan controlling the green sub-pixel G is activated, and the voltage signal on the data line Data charges only the green sub-pixel G. This allows two adjacent sub-pixels in a row to share a single data line (Data) in a time-sharing manner, significantly reducing the number of data lines (Data) in the display panel.

[0099] Understandably, when the display panel resolution is the same, the sub-pixels in the display panel adopt a dual-gate-line architecture. Compared with a single-gate-line architecture, the increased number of gate lines (Scans) results in a shorter charging time for each row of sub-pixels.

[0100] Based on the premise that the extension direction of the first segment 11 in the heating trace 10 is the same as the extension direction of the gate line Scan, if it is further desired that the display panel has touch functionality, then the display panel also includes multiple touch lines. In this case, optionally, in some embodiments of this application, such as Figure 16 and Figure 17As shown, the extension direction of the touch line TP and the data line Data in the display panel can be set to be the same. In this case, the display panel can include a substrate and a first metal layer M1, a second metal layer M2, and a third metal layer M3 stacked on one side of the substrate. The gate line Scan is located in the first metal layer M1, the data line Data and the touch line TP are located in the second metal layer M2 and the third metal layer M3, respectively, and the heating trace 10 is located in the first metal layer M1. That is, the heating trace 10 and the gate line Scan are arranged in the same direction and on the same layer, both located in the first metal layer M1. Furthermore, the first sub-type of the heating trace 10 can be... Segment 11 is located between at least partially adjacent gate lines Scan. Depending on the arrangement density of the first sub-segment 11 of each heated trace 10, the first sub-segment 11 of the heated trace 10 can be located between each adjacent gate line Scan or between partially adjacent gate lines Scan. Since the first sub-segment 11 of the heated trace 10 is located between at least partially adjacent gate lines Scan, and the gate line Scan is usually located on one side of a row of sub-pixels Pixel along the column direction V, the first sub-segment 11 of the heated trace 10 overlaps with a row of sub-pixels Pixel in a direction perpendicular to the plane of the substrate.

[0101] Among them, optional, such as Figure 16 and Figure 17 As shown, any two adjacent sub-pixels in a row of sub-pixels emit different colors. For example, a row of sub-pixels is arranged periodically according to red sub-pixels R, green sub-pixels G, and blue sub-pixels B. Meanwhile, all sub-pixels in a column of sub-pixels emit the same color. For example, a column of sub-pixels can be a red sub-pixel column, a green sub-pixel column, or a blue sub-pixel column.

[0102] Further optional, such as Figure 16 As shown, a row of sub-pixels can be electrically connected to a gate line Scan, meaning the sub-pixel adopts a single gate line architecture. Simultaneously, a column of sub-pixels is electrically connected to a data line Data. When the voltage signal on the gate line Scan corresponding to a row of sub-pixels turns on the thin-film transistor in that row of sub-pixels, the voltage signal on the data line Data charges the sub-pixel through the conducting thin-film transistor. At this time, since the data line Data and the touch line TP are set in different layers (located in the second metal layer M2 and the third metal layer M3, respectively), the data line Data and the touch line TP can at least partially overlap in the direction perpendicular to the plane of the substrate, thereby reducing the space occupied by the signal lines extending along the column direction V, which is beneficial to improving pixel density and resolution.

[0103] Or, such as Figure 17As shown, a row of sub-pixels can also be electrically connected to two gate lines (Scan), meaning the sub-pixel adopts a dual-gate line architecture. The two gate lines (Scan) electrically connected to a row of sub-pixels can be located on both sides of the row of sub-pixels along the column direction V. In this way, two adjacent sub-pixels in a row can be electrically connected to different gate lines (Scan) and the same data line (Data). That is, two adjacent sub-pixels in a row share a single data line (Data) under the control of voltage signals from different gate lines (Scan), which greatly reduces the number of data lines (Data). Furthermore, since the number of data lines (Data) is greatly reduced, there is sufficient gap between adjacent data lines (Data) and the touch lines (TP) are set in different layers (located in the second metal layer M2 and the third metal layer M3, respectively). Therefore, the orthographic projection of the touch line (TP) on the plane of the substrate can be positioned between the orthographic projections of two adjacent data lines (Data) on the plane of the substrate, so that the data lines (Data) and touch lines (TP) extending along the column direction V are alternately and evenly arranged, improving the uniformity of the wiring of the display panel. Alternatively, in a direction perpendicular to the plane of the substrate, the data line (Data) and the touch line (TP) can at least partially overlap, thereby reducing the space occupied by the signal lines and improving pixel density and resolution.

[0104] In addition to setting the extension direction of the first segment 11 in the heating trace 10 to be the same as the extension direction of the gate line Scan, and the display panel also including multiple touch lines to enable the display panel to have touch functionality, another optional feature, in some embodiments of this application, is... Figure 18 As shown, the extension direction of the touch line TP in the display panel is the same as the extension direction of the data line Data. The display panel includes a substrate and a first metal layer M1, a second metal layer M2 and a third metal layer M3 stacked on one side of the substrate. The gate line Scan is located in the first metal layer M1, the data line Data and the touch line TP are both located in one of the second metal layer M2 and the third metal layer M3, and the heating trace 10 is located in the other of the second metal layer M2 and the third metal layer M3. That is, the first segment 11 of the gate line Scan and the heating trace 10 are arranged in the same direction but on different layers, and the data line Data and the touch line TP are arranged in the same direction and on the same layer.

[0105] It is understandable that, since the gate line Scan and the first segment 11 of the heating trace 10 are arranged in the same direction but on different layers, it is possible that, as Figure 18 As shown, in the direction perpendicular to the plane of the substrate, the first segment 11 of the heating trace 10 can overlap at least partially with the gate line Scan, thereby reducing the space occupied by the signal line extending along the row direction H, which is beneficial to improving pixel density and resolution.

[0106] Among them, optional, such as Figure 18 As shown, all sub-pixels in a row of sub-pixels emit the same color, while any two adjacent sub-pixels in a column of sub-pixels emit different colors. For example, a column of sub-pixels is arranged periodically with red sub-pixels R, green sub-pixels G, and blue sub-pixels B. In this case, a row of sub-pixels can be electrically connected to a gate line Scan, and a column of sub-pixels can be electrically connected to a data line Data. When the voltage signal on the gate line Scan corresponding to a row of sub-pixels turns on the thin-film transistor in that row of sub-pixels, the voltage signal on the data line Data charges the sub-pixel in that row through the conducting thin-film transistor. Furthermore, the touch line TP is located between two adjacent data lines Data in the same layer. Since the data line Data is usually located on one side of a column of sub-pixels along the row direction H, the touch line TP overlaps with a column of sub-pixels in the direction perpendicular to the plane of the substrate.

[0107] It should be noted that, as Figures 14-18 As shown, when the extension direction of the first segment 11 in the heating trace 10 is the same as the extension direction of the gate line Scan, in the direction perpendicular to the plane of the substrate, the first segment 11 in the heating trace 10 at least partially overlaps with a row of sub-pixels or gate lines Scan. The line width of the first segment 11 in the heating trace 10 can be equal to the line width of the data line Data to avoid the heating trace 10 being too wide and requiring more shielding structures to block it, thus affecting the light transmittance of the display panel.

[0108] Regarding the arrangement of heating traces, gate lines, and data lines in the display panel, another optional approach is taken in some embodiments of this application, such as... Figures 19-24 As shown, Figures 19-24 The diagram shows partial structural schematics of six different display panels provided in this application. As can be seen, the display panel includes sub-pixels arranged in an array along the row direction H and the column direction V. The display panel also includes multiple gate lines Scan and multiple data lines Data. The gate lines Scan extend along the row direction H, and the data lines Data extend along the column direction V. Each row of sub-pixels is electrically connected to at least one gate line Scan, and at least one column of sub-pixels is electrically connected to one data line Data. The extension direction of the first segment 11 in the heating trace 10 is the same as the extension direction of the data line Data, that is, the first segment 11 in the heating trace 10 extends along the column direction V. (See reference...) Figure 1 , Figure 5 , Figures 6-7 , Figures 9-13Thus, the heating trace 10 of the display area AA can be routed vertically and directly connected to the heating flexible circuit board FPC1, or it can be first connected to the peripheral positive heating bus 20 and negative heating bus 30, and then connected to the heating flexible circuit board FPC1 to obtain a heating signal and achieve heating.

[0109] Based on the premise that the extension direction of the first segment 11 in the heating trace 10 is the same as the extension direction of the data line Data, optionally, in some embodiments of this application, such as Figures 19-21 As shown, the display panel includes a substrate and a first metal layer M1 and a second metal layer M2 stacked on one side of the substrate. The gate line Scan is located on the first metal layer M1, the data line Data is located on the second metal layer M2, and the heating trace 10 is also located on the second metal layer M2. That is, the heating trace 10 and the data line Data are arranged on the same layer. However, it is understood that the heating trace 10 needs to be insulated from the data line Data to avoid signal interference.

[0110] In the case where the extension direction of the first segment 11 in the heating trace 10 is the same as the extension direction of the data line Data, and the heating trace 10 and the data line Data are insulated in the same layer, optionally, in some embodiments of this application, such as Figure 19 As shown, any two adjacent sub-pixels in a row of sub-pixels emit different colors. For example, a row of sub-pixels is arranged periodically with red sub-pixels (R), green sub-pixels (G), and blue sub-pixels (B). Meanwhile, all sub-pixels in a column of sub-pixels emit the same color. For example, a column of sub-pixels may be a red sub-pixel column, a green sub-pixel column, or a blue sub-pixel column. Furthermore, the display panel may include multiple pixel groups (PG), each PG comprising three columns of sub-pixels, and these three columns of sub-pixels emit different colors from each other. For example, a PG column may include a red sub-pixel column, a green sub-pixel column, and a blue sub-pixel column. The three columns of sub-pixels are arranged in a single row. At this time, a row of sub-pixels can be electrically connected to a gate line Scan, that is, the sub-pixel adopts a single gate line architecture. At the same time, a column of sub-pixels is electrically connected to a data line Data, and the data line Data connected to the column of sub-pixels is located on one side of the column of sub-pixels along the row direction H. When the voltage signal on the gate line Scan corresponding to a row of sub-pixels turns on the thin film transistor in the row of sub-pixels, the voltage signal on the data line Data charges the sub-pixel in the row through the conducting thin film transistor. The first segment 11 of the heating trace 10 is located between at least two partially adjacent columns of pixel groups PG.

[0111] It is understandable that, such as Figure 19As shown, since a column of sub-pixels is electrically connected to a data line Data, and the data line Data connected to a column of sub-pixels is located on one side of the column of sub-pixels along the row direction H, when the first segment 11 of the heating trace 10 is located between at least partially adjacent two columns of pixel groups PG, the first segment 11 of the heating trace 10 will be located between the two adjacent columns of sub-pixels. That is, at least partially adjacent two columns of sub-pixels will simultaneously have the data line Data and the first segment 11 of the heating trace 10. In order to simultaneously have the data line Data and the first segment 11 of the heating trace 10 between at least partially adjacent two columns of sub-pixels, the width of at least partially sub-pixel columns can be compressed so that the gap between at least partially adjacent two columns of sub-pixels is sufficient to simultaneously have the data line Data and the first segment 11 of the heating trace 10.

[0112] For example, such as Figure 19 As shown, pixel group PG includes red sub-pixels R, green sub-pixels G, and blue sub-pixels B arranged sequentially along the row direction H. It can be imagined that pixel group PG is arranged along the column direction V to form a column of pixel group PG, and each column of pixel group PG is arranged along the row direction H. That is, pixel group PG is arranged in an array along the row direction H and the column direction V. In this way, the column of blue sub-pixels in one column of pixel group PG (i.e., the column of blue sub-pixels B arranged along the column direction V) is set adjacent to the column of red sub-pixels in another column of pixel group PG (i.e., the column of red sub-pixels R arranged along the column direction V). In this case, the width of the column of blue sub-pixels in one column of pixel group PG (i.e., the column of blue sub-pixels B arranged along the column direction V) can be compressed so that the gap between the column of pixel group PG and the adjacent column of pixel group PG is sufficient to simultaneously set the data line Data and the first segment 11 of the heating trace 10. However, this application does not limit this. Of course, it is also possible to compress the red sub-pixel column (i.e., a column of red sub-pixels R arranged along the column direction V) and the green sub-pixel column (i.e., a column of green sub-pixels G arranged along the column direction V) in a column of pixel group PG so that the gap between the column of pixel group PG and the adjacent other column of pixel group PG is sufficient to simultaneously set the data line Data and the first segment 11 of the heating trace 10.

[0113] Optional, such as Figure 19As shown, in a column of pixel group PG, the width w1 of a column of sub-pixels with the first segment 11 of the heating trace 10 on one side along the row direction H is smaller than the width w2 of other columns of sub-pixels. That is, the width of the column of sub-pixels with the first segment 11 of the heating trace 10 on one side along the row direction H in a column of pixel group PG is compressed, so that the gap between this column of pixel group PG and the adjacent other column of pixel group PG is sufficient to simultaneously set the data line Data and the first segment 11 of the heating trace 10.

[0114] Alternatively, the first sub-segment 11 of each heating trace 10 in the display area AA can be set to be located between each of two adjacent pixel groups PG, or between two partially adjacent pixel groups PG, based on the arrangement density of the first sub-segment 11 of each heating trace 10.

[0115] In the case where the extension direction of the first segment 11 in the heating trace 10 is the same as the extension direction of the data line Data, and the heating trace 10 and the data line Data are insulated in the same layer, another optional provision, in some embodiments of this application, is as follows: Figure 20As shown, any two adjacent sub-pixels in a row of sub-pixels emit different colors. For example, a row of sub-pixels is arranged periodically with red sub-pixels (R), green sub-pixels (G), and blue sub-pixels (B). Meanwhile, all sub-pixels in a column of sub-pixels emit the same color. For example, a column of sub-pixels can be a red sub-pixel column, a green sub-pixel column, or a blue sub-pixel column. In this case, a row of sub-pixels can be electrically connected to two gate lines (Scan), meaning the sub-pixels adopt a dual-gate-line architecture. The two gate lines (Scan) electrically connected to a row of sub-pixels can be located on opposite sides of the row along the column direction (X). Thus, any two adjacent sub-pixels in a row of sub-pixels can be electrically connected to different gate lines (Scan) and the same data line (Data). Two adjacent sub-pixels share a single data line (Data) under the control of voltage signals from different gate lines (Scan), thus significantly reducing the number of data lines (Data). Furthermore, because the number of data lines (Data) is significantly reduced, there is sufficient spacing between adjacent data lines (Data), and the first segment 11 of the heating trace 10 is insulated from the data line (Data) on the same layer and in the same direction. Therefore, the orthographic projection of the first segment 11 of the heating trace 10 onto the plane of the substrate can be positioned between the orthographic projections of at least some of the adjacent data lines (Data) onto the plane of the substrate. Depending on the arrangement density of the first segments 11 of each heating trace 10 within the display area AA, the orthographic projection of the first segment 11 of the heating trace 10 onto the plane of the substrate is positioned between the orthographic projections of each of the adjacent data lines (Data) onto the plane of the substrate, or between the orthographic projections of some of the adjacent data lines (Data) onto the plane of the substrate.

[0116] In the case where the extension direction of the first segment 11 in the heating trace 10 is the same as the extension direction of the data line Data, and the heating trace 10 and the data line Data are insulated in the same layer, another optional configuration is found in some embodiments of this application, such as... Figure 21As shown, in a row of sub-pixels, all sub-pixels emit the same color, while in a column of sub-pixels, any two adjacent sub-pixels emit different colors. For example, a column of sub-pixels is arranged periodically with red sub-pixels (R), green sub-pixels (G), and blue sub-pixels (B). A row of sub-pixels can be a red sub-pixel row, a green sub-pixel row, or a blue sub-pixel row. In this case, a row of sub-pixels can be electrically connected to a gate line (Scan), meaning the sub-pixels adopt a single-gate-line architecture. Simultaneously, a column of sub-pixels is electrically connected to a data line (Data). When a row of sub-pixels corresponds to... When the voltage signal on the gate line Scan turns on the thin-film transistor in the row of sub-pixels, the voltage signal on the data line Data charges the sub-pixel in that row through the conducting thin-film transistor. Thus, since the first segment 11 of the heating trace 10 is insulated from the data line Data in the same layer and direction, the first segment 11 of the heating trace 10 can be positioned between at least two adjacent data lines Data. In the direction perpendicular to the plane of the substrate, the first segment 11 of the heating trace 10 overlaps with a column of sub-pixels. In this way, the signal lines extending along the column direction V tend to be uniformly arranged, improving the wiring uniformity of the display panel.

[0117] It is understandable that, depending on the arrangement density of the first segment 11 of each heating trace 10 in the display area AA, the first segment 11 of the heating trace 10 can be located between each of two adjacent data lines Data, or between two partially adjacent data lines Data.

[0118] It is also understandable that the sub-pixels of the display panel are arranged according to... Figure 21 In the arrangement shown, all sub-pixels in a row have the same emission color, and any two adjacent sub-pixels in a column have different emission colors. The size of the sub-pixel along the row direction H can be larger than the size of the sub-pixel along the column direction V. Furthermore, the data line Data that is electrically connected to a column of sub-pixels can be located on one side of the column of sub-pixels along the row direction H. Thus, the distance between two adjacent data lines Data is basically the size of a column of sub-pixels along the row direction H. That is, there is a sufficient gap between two adjacent data lines Data to set the first segment 11 of the heating trace 10.

[0119] Based on the premise that the extension direction of the first segment 11 in the heating trace 10 is the same as the extension direction of the data line Data, if it is further desired that the display panel has touch functionality, then the display panel also includes multiple touch lines. In this case, optionally, in some embodiments of this application, such as Figures 22-27 As shown, Figures 22-27The diagram shows partial structural schematics of six different display panels provided in this application. The extension direction of the touch line TP and the data line Data in the display panel can be set to be the same. That is, the data line Data, the touch line TP, and the first segment 11 of the heating trace 10 all extend along the column direction V. In this case, the display panel can include a substrate and a first metal layer M1, a second metal layer M2, and a third metal layer M3 stacked on one side of the substrate. The gate line Scan is located in the first metal layer M1, the data line Data and the touch line TP are located in the second metal layer M2 and the third metal layer M3, respectively, and the heating trace 10 is located in either the second metal layer M2 or the third metal layer M3. Specifically, the first segment 11 of the heating trace 10 is insulated from the data line Data in the same layer and direction, or the first segment 11 of the heating trace 10 is insulated from the touch line TP in the same layer and direction.

[0120] Based on this, optional, such as Figure 22 and Figure 23 As shown, any two adjacent sub-pixels in a row of sub-pixels emit different colors. For example, a row of sub-pixels is arranged periodically with red sub-pixels (R), green sub-pixels (G), and blue sub-pixels (B). Meanwhile, all sub-pixels in a column of sub-pixels emit the same color. For example, a column of sub-pixels may be a red sub-pixel column, a green sub-pixel column, or a blue sub-pixel column. Furthermore, the display panel may include multiple pixel groups (PG), each PG comprising three columns of sub-pixels, and the three columns of sub-pixels emit different colors from each other. For example, a PG column may include red sub-pixels... The sub-pixels consist of three columns: a pixel column, a green sub-pixel column, and a blue sub-pixel column. At this time, a row of sub-pixels can be electrically connected to a gate line Scan, that is, the sub-pixel adopts a single gate line architecture. At the same time, a row of sub-pixels is electrically connected to a data line Data, and the data line Data connected to a row of sub-pixels is located on one side of the row direction H of the sub-pixel column. When the voltage signal on the gate line Scan corresponding to a row of sub-pixels turns on the thin film transistor in that row of sub-pixels, the voltage signal on the data line Data charges the capacitively of the row of sub-pixels through the turned-on thin film transistor.

[0121] Among them, further optional, such as Figure 22 As shown, since the data line Data and the touch line TP are arranged in the same direction but on different layers, the first sub-segment 11 in the heating trace 10 is arranged in the same direction and on the same layer as the data line Data or the touch line TP. Therefore, the touch line TP and the data line Data can be arranged to overlap at least partially in a direction perpendicular to the plane of the substrate, and the first sub-segment 11 of the heating trace 10 is arranged between at least two adjacent columns of pixel groups PG.

[0122] Another option, such as Figure 23 As shown, since the data line Data and the touch line TP are arranged in the same direction but on different layers, the first sub-segment 11 in the heating trace 10 is arranged in the same direction and on the same layer as the data line Data or the touch line TP. Therefore, the first sub-segment 11 of the heating trace 10 can also be arranged to overlap with at least a portion of the data line Data in a direction perpendicular to the plane of the substrate, and the touch line TP is located between two adjacent pixel groups PG.

[0123] It is understandable that, such as Figure 22 As shown, since a column of sub-pixels is electrically connected to a data line Data, and the data line Data connected to a column of sub-pixels is located on one side of the column of sub-pixels along the row direction H, when the first segment 11 of the heating trace 10 is located between at least partially adjacent two columns of pixel groups PG, the first segment 11 of the heating trace 10 will be located between the two adjacent columns of sub-pixels. That is, at least partially adjacent two columns of sub-pixels will simultaneously have the data line Data and the first segment 11 of the heating trace 10. In order to simultaneously have the data line Data and the first segment 11 of the heating trace 10 between at least partially adjacent two columns of sub-pixels, the width of at least partially sub-pixel columns can be compressed so that the gap between at least partially adjacent two columns of sub-pixels is sufficient to simultaneously have the data line Data and the first segment 11 of the heating trace 10.

[0124] Similarly, such as Figure 23 As shown, since a column of sub-pixels is electrically connected to a data line Data, and the data line Data of a column of sub-pixels is located on one side of the column of sub-pixels along the row direction H, when the touch line TP is set between two adjacent column groups of pixels PG, the touch line TP will also be located between two adjacent column groups of sub-pixels. That is, at least some of the adjacent column groups of sub-pixels will have both the data line Data and the touch line TP set simultaneously. In order to set both the data line Data and the touch line TP between two adjacent column groups of sub-pixels simultaneously, the width of at least some of the sub-pixel columns can be compressed so that the gap between two adjacent column groups of sub-pixels is large enough to simultaneously set both the data line Data and the touch line TP.

[0125] For example, such as Figure 22 and Figure 23As shown, pixel group PG includes red sub-pixels R, green sub-pixels G, and blue sub-pixels B arranged sequentially along the row direction H. It can be imagined that pixel group PG is arranged along the column direction V to form a column of pixel group PG, and each column of pixel group PG is arranged along the row direction H. That is, pixel group PG is arranged in an array along the row direction H and the column direction V. In this way, the column of blue sub-pixels in one column of pixel group PG (i.e., the column of blue sub-pixels B arranged along the column direction V) is set adjacent to the column of red sub-pixels in another column of pixel group PG (i.e., the column of red sub-pixels R arranged along the column direction V). In this case, the width of the column of blue sub-pixels in one column of pixel group PG (i.e., the column of blue sub-pixels B arranged along the column direction V) can be compressed so that the gap between the column of pixel group PG and the adjacent column of pixel group PG is sufficient to simultaneously set the data line Data and the first segment 11 of the heating trace 10, or simultaneously set the data line Data and the touch line TP. However, this application does not limit this. Of course, it is also possible to compress the red sub-pixel column (i.e., a column of red sub-pixels R arranged along the column direction V) and the green sub-pixel column (i.e., a column of green sub-pixels G arranged along the column direction V) in a column of pixel group PG so that the gap between the column of pixel group PG and the adjacent other column of pixel group PG is sufficient to simultaneously set the data line Data and the first segment 11 of the heating trace 10, or simultaneously set the data line Data and the touch line TP.

[0126] Optional, such as Figure 22 As shown, in a column of pixel group PG, the width w1 of a column of sub-pixels with the first segment 11 of the heating trace 10 on one side along the row direction H is smaller than the width w2 of other columns of sub-pixels. That is, the width of the column of sub-pixels with the first segment 11 of the heating trace 10 on one side along the row direction H in a column of pixel group PG is compressed, so that the gap between this column of pixel group PG and the adjacent other column of pixel group PG is sufficient to simultaneously set the data line Data and the first segment 11 of the heating trace 10, or simultaneously set the data line Data and the touch line TP.

[0127] In addition, when the first segment 11 of the heating trace 10 is located between at least two adjacent pixel groups PG, the first segment 11 of the heating trace 10 can be located between each of two adjacent pixel groups PG, or between two partially adjacent pixel groups PG, depending on the arrangement density of the first segment 11 of each heating trace 10 in the display area AA.

[0128] Similarly, such as Figure 23As shown, in a column of pixel group PG, the width w3 of the sub-pixel column with touch line TP on one side along the row direction H is smaller than the width w2 of the other sub-pixel columns. That is, the width of the sub-pixel column with touch line TP on one side along the row direction H in a column of pixel group PG is compressed so that the gap between this column of pixel group PG and the adjacent other column of pixel group PG is sufficient to simultaneously set the data line Data and the touch line TP.

[0129] In the case where the first segment 11 of the heating trace 10, the data line Data, and the touch line TP all extend along the column direction V, and the display panel includes a substrate and a first metal layer M1, a second metal layer M2, and a third metal layer M3 stacked on one side of the substrate, the gate line Scan is located in the first metal layer M1, the data line Data and the touch line TP are located in the second metal layer M2 and the third metal layer M3, respectively, and the heating trace 10 is located in the second metal layer M2 or the third metal layer M3, that is, the first segment 11 of the heating trace 10 is insulated from the data line Data in the same layer and in the same direction, or, in the case where the first segment 11 of the heating trace 10 is insulated from the touch line TP in the same layer and in the same direction, another option is, as follows: Figure 24 and Figure 25 As shown, any two adjacent sub-pixels in a row of sub-pixels emit different colors. For example, a row of sub-pixels is arranged periodically with red sub-pixels (R), green sub-pixels (G), and blue sub-pixels (B). Meanwhile, all sub-pixels in a column of sub-pixels emit the same color. For example, a column of sub-pixels can be a red sub-pixel column, a green sub-pixel column, or a blue sub-pixel column. Furthermore, a row of sub-pixels is electrically connected to two gate lines (Scan), meaning the sub-pixels adopt a dual-gate line architecture. The two gate lines (Scan) electrically connected to a row of sub-pixels can be located on both sides of the column direction (V) of the row of sub-pixels. In this way, two adjacent sub-pixels in a row of sub-pixels can be electrically connected to different gate lines (Scan) and electrically connected to the same data line (Data). That is, two adjacent sub-pixels in a row of sub-pixels share a single data line (Data) under the control of the voltage signals of different gate lines (Scan), which greatly reduces the number of data lines (Data).

[0130] Because the number of data lines (Data) is significantly reduced, there is ample spacing between adjacent data lines (Data). Therefore, further options include, for example... Figure 24As shown, since the data line Data and the touch line TP are arranged in the same direction but on different layers, the first segment 11 in the heating trace 10 is arranged in the same direction and on the same layer as the data line Data or the touch line TP. Therefore, the touch line TP and the data line Data can be arranged to overlap at least partially in a direction perpendicular to the plane of the substrate. The first segment 11 of the heating trace 10 is located between at least two adjacent data lines Data. This not only reduces the space occupied by the signal lines extending along the column direction V, which is beneficial to improving pixel density and resolution, but also improves the uniformity of the distribution of the signal lines extending along the column direction V.

[0131] Furthermore, when the first segment 11 of the heating trace 10 is located between at least two adjacent data lines Data, the arrangement density of the first segment 11 of each heating trace 10 in the display area AA can be used to set the first segment 11 of the heating trace 10 to be located between each two adjacent data lines Data, or between two partially adjacent data lines Data.

[0132] Another option, such as Figure 25 As shown, since the data line Data and the touch line TP are arranged in the same direction but on different layers, the first segment 11 of the heating trace 10 is arranged in the same direction and on the same layer as the data line Data or the touch line TP. Therefore, in the direction perpendicular to the plane of the substrate, the first segment 11 of the heating trace 10 can be arranged to overlap with at least a portion of the data line Data. The touch line TP is located between two adjacent data lines Data. This not only reduces the space occupied by the signal lines extending along the column direction V, which is beneficial to improving pixel density and resolution, but also improves the uniformity of the distribution of the signal lines extending along the column direction V.

[0133] Furthermore, when the first sub-segment 11 of the heating trace 10 overlaps with at least a portion of the data lines Data in a direction perpendicular to the plane of the substrate, the first sub-segment 11 of the heating trace 10 may overlap with each data line Data or with a portion of the data lines Data, depending on the arrangement density of the first sub-segment 11 of each heating trace 10 in the display area AA.

[0134] In the case where the first segment 11 of the heating trace 10, the data line Data, and the touch line TP all extend along the column direction V, and the display panel includes a substrate and a first metal layer M1, a second metal layer M2, and a third metal layer M3 stacked on one side of the substrate, the gate line Scan is located in the first metal layer M1, the data line Data and the touch line TP are located in the second metal layer M2 and the third metal layer M3, respectively, and the heating trace 10 is located in the second metal layer M2 or the third metal layer M3, that is, the first segment 11 of the heating trace 10 is insulated from the data line Data in the same layer and in the same direction, or, in the case where the first segment 11 of the heating trace 10 is insulated from the touch line TP in the same layer and in the same direction, another option is, as follows: Figure 26 and Figure 27 As shown, all sub-pixels in a row of sub-pixels emit the same color, while any two adjacent sub-pixels in a column of sub-pixels emit different colors. For example, a column of sub-pixels is arranged periodically with red sub-pixels (R), green sub-pixels (G), and blue sub-pixels (B), and a row of sub-pixels can be a red sub-pixel row, a green sub-pixel row, or a blue sub-pixel row. In this case, a row of sub-pixels can be electrically connected to a gate line (Scan), meaning the sub-pixels adopt a single gate line architecture. At the same time, a column of sub-pixels is electrically connected to a data line (Data). When the voltage signal on the gate line (Scan) corresponding to a row of sub-pixels turns on the thin-film transistor in that row of sub-pixels, the voltage signal on the data line (Data) charges the capacitor of that row of sub-pixels through the conducting thin-film transistor.

[0135] Among them, further optional, such as Figure 27 As shown, since the data line Data and the touch line TP are arranged in the same direction but on different layers, the first sub-segment 11 of the heating trace 10 is arranged in the same direction and on the same layer as the data line Data or the touch line TP. Therefore, the first sub-segment 11 of the heating trace 10 can be arranged between at least two partially adjacent data lines Data and in a direction perpendicular to the plane of the substrate. The first sub-segment 11 of the heating trace 10 overlaps with a column of sub-pixels Pixel, and the touch line TP overlaps at least partially with the data line Data. In this way, not only can the space occupied by the signal lines extending along the column direction V be reduced, which is beneficial to improving pixel density and resolution, but also the distribution uniformity of the signal lines extending along the column direction V can be improved.

[0136] It is understandable that, depending on the arrangement density of the first segment 11 of each heating trace 10 in the display area AA, the first segment 11 of the heating trace 10 can be located between each of two adjacent data lines Data, or between two partially adjacent data lines Data.

[0137] Another option, such as Figure 27 As shown, since the data line Data and the touch line TP are arranged in the same direction but on different layers, the first sub-segment 11 in the heating trace 10 is arranged in the same direction and on the same layer as the data line Data or the touch line TP. Therefore, the touch line TP can be arranged between two adjacent data lines Data and in a direction perpendicular to the plane of the substrate. The touch line TP overlaps with a column of sub-pixels Pixel, and the first sub-segment 11 of the heating trace 10 overlaps with at least a portion of the data lines Data.

[0138] It is understandable that, based on the arrangement density of the first sub-segment 11 of each heating trace 10 in the display area AA, in the direction perpendicular to the plane of the substrate, the first sub-segment 11 of the heating trace 10 overlaps with each data line Data, or overlaps with some data lines Data.

[0139] It is also understandable that the sub-pixels of the display panel are arranged according to... Figure 26 and Figure 27 In the arrangement shown, all sub-pixels in a row have the same emission color, and any two adjacent sub-pixels in a column have different emission colors. The size of the sub-pixel along the row direction H can be larger than the size of the sub-pixel along the column direction V. Furthermore, the data line Data that is electrically connected to a column of sub-pixels can be located on one side of the column of sub-pixels along the row direction H. Thus, the distance between two adjacent data lines Data is basically the size of a column of sub-pixels along the row direction H. That is, there is a sufficient gap between two adjacent data lines Data to set the first segment 11 of the heating trace 10 or the touch line TP.

[0140] It should be noted that, as Figures 19-27 As shown, when the extension direction of the first segment 11 in the heating trace 10 is the same as the extension direction of the data line Data, in the direction perpendicular to the plane of the substrate, the first segment 11 in the heating trace 10 at least partially overlaps with a column of sub-pixels or data lines Data. The line width of the first segment 11 in the heating trace 10 can be equal to the line width of the data line Data to avoid the heating trace 10 being too wide and requiring more shielding structures to shield it, thus affecting the light transmittance of the display panel.

[0141] The above mainly introduces the configuration of the gate line Scan, data line Data, the first segment 11 of the heating trace 10 and the touch line TP in the display area AA. The heating trace 10 in the display area AA can be directly connected to the heating flexible circuit board, or the heating trace 10 in the display area AA can be first connected to the positive heating bus 20 and the negative heating bus 30 located in the non-display area NA, and then connected to the heating flexible circuit board through the positive heating bus 20 and the negative heating bus 30. Understandably, if the heating trace 10 in the display area AA is directly connected to the flexible heating circuit board, then the flexible heating circuit board would require many pins and would need to be a separate flexible heating circuit board. However, if the heating trace 10 in the display area AA is connected to the flexible heating circuit board through the positive heating bus 20 and the negative heating bus 30, then the flexible heating circuit board only needs to reserve a small number of heating pins for the positive heating bus 20 and the negative heating bus 30. In other words, a separate flexible heating circuit board can be eliminated, and the heating pins connected to the positive heating bus 20 and the negative heating bus 30 can be combined with the display pins that provide the signals required for display on a single flexible circuit board (on which a driver integrated circuit IC is bonded) to reduce the bezel space.

[0142] In some embodiments of this application, where the heating trace 10 in the display area AA is first connected to the positive heating bus 20 and negative heating bus 30 in the non-display area NA, and then connected to the heating pins via the positive heating bus 20 and negative heating bus 30, alternatively... Figure 28 As shown, Figure 28 A schematic diagram of another display panel provided in this application is shown. It can be seen that the non-display area NA of the display panel includes a first area NA1, a second area NA2 and a third area NA3 located on one side of the display area AA and arranged in a direction away from the display area AA. The third area NA3 is bonded to a driver integrated circuit IC.

[0143] like Figure 28 As shown, the first region NA1 includes a positive heating bus 20 and a negative heating bus 30. One end of the heating trace 10 is electrically connected to the positive heating bus 20, and the other end of the heating trace 10 is electrically connected to the negative heating bus 30. Furthermore, the positive heating bus 20 and the negative heating bus 30 can be electrically connected to the heating pins in the driver integrated circuit IC, or they can be electrically connected to the heating pins of a separate flexible heating circuit board, thereby applying a voltage signal to the heating trace 10 through the positive heating bus 20 and the negative heating bus 30.

[0144] Combination Figure 28 as well as Figures 19-27As shown, the display area AA includes multiple data lines Data and multiple touch lines TP. The second area NA2 (i.e., the fan-out area) includes multiple data fan-out lines S1 and multiple touch fan-out lines S2. The data lines Data are electrically connected to the driver integrated circuit IC (specifically, to the data pins) through the data fan-out lines S1, and the touch lines TP are electrically connected to the driver integrated circuit IC (specifically, to the touch pins) through the touch fan-out lines S2. In this way, the driver integrated circuit IC can provide data signals to the data lines Data in the display area AA through the data fan-out lines S1, and provide touch signals to the touch lines TP in the display area AA through the touch fan-out lines S2.

[0145] Furthermore, considering that the closer the data fan-out line S1 is to the driver integrated circuit IC, the more densely it is arranged in the second region NA2 (i.e., the fan-out area), therefore, combined with Figure 28 as well as Figures 19-27 As shown, the data fan-out line S1 can be configured to include a first data fan-out line S11 and a second data fan-out line S12. The first data fan-out line S11 and the second data fan-out line S12 are electrically connected to different data lines Data. The first data fan-out line S11 and the second data fan-out line S12 are arranged alternately, and the first data fan-out line S11 and the second data fan-out line S12 are set in different layers. That is to say, the data line Data in the display area AA is electrically connected to the data fan-out line S1. The data fan-out line S1 is arranged in the second area NA2 (i.e., the fan-out area) in an alternating ABAB pattern, where A and B represent different metal layers. In this way, the arrangement density of data fan-out lines in the same metal layer in the second area NA2 (i.e., the fan-out area) can be reduced, which is beneficial to reducing the bottom bezel of the display panel.

[0146] Further optional, in some embodiments of this application, such as Figure 28 As shown, the first area of ​​the non-display area NA also includes a data connection line S3. The data line Data in the display area AA is electrically connected to the first data fan-out line S11 or the second data fan-out line S12 through the data connection line S3. The first data fan-out line S11 and the second data fan-out line S12 are then electrically connected to the driver integrated circuit IC. Furthermore, the first area of ​​the non-display area NA also includes a touch connection line S4. The touch line TP in the display area AA is electrically connected to the touch fan-out line S2 through the touch connection line S4. The touch fan-out line S2 is then electrically connected to the driver integrated circuit IC.

[0147] Specifically, taking a display panel comprising a first metal layer M1, a second metal layer M2, and a third metal layer M3 stacked on one side of a substrate as an example, and referring to... Figures 22-27As shown, the heating trace 10 in the display area AA can be located in the third metal layer M3, the data line Data can be located in the second metal layer M2, and the touch line TP can be located in the second metal layer M2 or the third metal layer M3. In this case, the positive heating bus 20 located on the lower edge of the display panel can be located in the first metal layer M1, and the negative heating bus 30 can be located in the third metal layer M3. Then, after the heating trace 10 in the display area AA located in the third metal layer M3 is pulled down, it is connected to the positive heating bus 20 located in the first metal layer M1 through the via between the third metal layer M3 and the first metal layer M1. At the same time, after the heating trace 10 in the display area AA located in the third metal layer M3 is pulled down, it is directly connected to the negative heating bus 30 on the same layer.

[0148] Furthermore, the data connection line S3 located in the first region NA1 can be located in the second metal layer M2. The first data fan-out line S11 and the second data fan-out line S12 located in the second region NA2 (i.e., the fan-out area) are arranged alternately according to M1 / M2 / M1 / M2. That is, the first data fan-out line S11 is located in one of the first metal layer M1 and the second metal layer M2, and the second data fan-out line S12 is located in the other of the first metal layer M1 and the second metal layer M2. The first data fan-out line S11 and the second data fan-out line S12 are arranged alternately. Then, the data line Data located in the second metal layer M2 in the display area AA is first led out through the data connection line S3 located in the second metal layer M2 in the first region NA1, and then electrically connected to the driver integrated circuit IC through the first data fan-out line S11 or the second data fan-out line S12 in the second region NA2 (i.e., the fan-out area).

[0149] Furthermore, the touch connection line S4 located in the first region NA1 can be located in the second metal layer M2, and the touch fan-out line S2 located in the second region NA2 (i.e., the fan-out area) can be located in the third metal layer M3. Then, the touch line TP located in the second metal layer M2 or the third metal layer M3 in the display area AA is electrically connected to the driver integrated circuit IC through the touch connection line S4 in the first region NA1 (located in the second metal layer M2) and the touch fan-out line S2 in the second region NA2 (i.e., the fan-out area) (located in the third metal layer M3) in sequence.

[0150] It is understandable that in the first region NA1, after the heating trace 10 located in the third metal layer M3 in the display area AA is pulled down, it is connected to the positive heating bus 20 located in the first metal layer M1 through the via between the third metal layer M3 and the first metal layer M1. At the same time, after the heating trace 10 located in the third metal layer M3 in the display area AA is pulled down, it is directly connected to the negative heating bus 30 on the same layer. That is, the heating trace occupies the first metal layer M1 and the second metal layer M3 in total. Therefore, in the first region NA1, the data connection line S3 and the touch connection line S4 can both be located in the second metal layer M2.

[0151] It is also understandable that in the second region NA2 (i.e., the fan-out area), since the first data fan-out line S11 and the second data fan-out line S12 are arranged alternately according to M1 / M2 / M1 / M2, the touch fan-out line S2 in the second region NA2 (i.e., the fan-out area) switches to the third metal layer M3.

[0152] Accordingly, this application also provides a display device, such as Figure 29 As shown, the display device 200 includes a display panel 100, which can be any of the display panels provided in the above embodiments. Since the display panel 100 has been described in detail in the foregoing embodiments, it can be referred to the foregoing embodiments, and will not be described again here.

[0153] The display device 200 can be any electronic device with display function, such as an electronic rearview mirror, mobile phone, tablet computer, laptop computer, e-reader or television.

[0154] The display device 200 can also be a display screen loaded on various vehicles, such as an in-vehicle display screen.

[0155] As can be seen from the above embodiments, the display panel and display device provided by the present invention achieve at least the following beneficial effects:

[0156] The display panel provided by the present invention includes a display area and a non-display area that at least partially surrounds the display area. The display area is non-rectangular. The display panel also includes multiple heating traces, at least a portion of which are located in the display area, and both ends of which are located in the non-display area. Each heating trace includes at least two first segments, which extend along a first direction and are arranged along a second direction, with the first and second directions intersecting. The first segments in a heating trace are connected in series through second segments. The multiple heating traces include a first heating trace and a second heating trace. The number of first segments in the second heating trace is different from the number of first segments in the first heating trace, and / or the arrangement density of the first segments in the second heating trace along the second direction is different from the arrangement density of the first segments in the first heating trace along the second direction. The difference between the length of the first heating trace and the length of the second heating trace is not greater than a first threshold. This invention addresses this issue by setting the number of first segments in the second heating trace in the display area to be different from the number of first segments in the first heating trace, and / or by setting the arrangement density of the first segments in the second heating trace along the second direction to be different from the arrangement density of the first segments in the first heating trace along the second direction. This ensures that the difference in length between the two heating traces is no greater than a first threshold, meaning the lengths of the two heating traces are approximately equal. Consequently, the resistance of the two heating traces is approximately equal, and therefore the heating power of the two heating traces is approximately equal. This improves the uniformity of heating temperature in different areas of the display area and enhances the display effect of the display panel under low-temperature conditions. The various parts of this specification are described using a combination of parallel and progressive methods. Each part focuses on the differences from the others; similar or identical parts can be referred to interchangeably.

[0157] The features described above regarding the disclosed embodiments can be substituted or combined with each other to enable those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that, include: A display area and a non-display area that at least partially surrounds the display area, wherein the display area is non-rectangular; Multiple heating traces, at least a portion of which are located in the display area and both ends of which are located in the non-display area; Each of the heating traces includes at least two first segments, the first segments extending along a first direction and arranged along a second direction, the first direction and the second direction intersecting; each of the first segments in a heating trace is connected in series through the second segments; The plurality of heating traces include a first heating trace and a second heating trace. The number of the first sub-segments in the second heating trace is different from the number of the first sub-segments in the first heating trace, and / or the arrangement density of the first sub-segments in the second heating trace along the second direction is different from the arrangement density of the first sub-segments in the first heating trace along the second direction. The difference between the length of the first heating trace and the length of the second heating trace is not greater than the first threshold.

2. The display panel according to claim 1, characterized in that, The display panel includes a plurality of sub-pixels arranged in an array along the row and column directions, and the first threshold is not greater than the length of 10 of the sub-pixels.

3. The display panel according to claim 1, characterized in that, The difference between the area of ​​the display area corresponding to the region enclosed by the first heating trace and the area of ​​the display area corresponding to the region enclosed by the second heating trace is not greater than the second threshold.

4. The display panel according to claim 3, characterized in that, The second threshold is not greater than 10% of the area of ​​the display area corresponding to the region enclosed by the first heating trace, or the second threshold is not greater than 10% of the area of ​​the display area corresponding to the region enclosed by the second heating trace.

5. The display panel according to claim 1, characterized in that, The display area includes a first side and a second side that are disposed opposite to each other along the first direction, and the first side and the second side are not parallel. Both ends of the first heating trace and both ends of the second heating trace are located on one side of the first edge of the display area; Both ends of the first sub-segment in the first heating trace and both ends of the first sub-segment in the second heating trace extend toward the first side and the second side, respectively. The number of the first sub-segments in the second heating trace is equal to the number of the first sub-segments in the first heating trace, the average length of the first sub-segments in the second heating trace is less than the average length of the first sub-segments in the first heating trace, and the arrangement density of the first sub-segments in the second heating trace along the second direction is less than the arrangement density of the first sub-segments in the first heating trace along the second direction.

6. The display panel according to claim 5, characterized in that, Both the first heating trace and the second heating trace include two of the first sub-segments; The spacing between the two first sub-segments in the second heating trace is greater than the spacing between the two first sub-segments in the first heating trace.

7. The display panel according to claim 1, characterized in that, The display area includes a first sub-display area and a second sub-display area. At least a portion of the first heating trace is located in the first sub-display area, and the first heating trace includes m first sub-segments. At least a portion of the second heating trace is located in the second sub-display area, and the second heating trace includes n first sub-segments, where n > m, m ≥ 2, n ≥ 4, and m and n are both even numbers.

8. The display panel according to claim 7, characterized in that, The arrangement density of the first segment along the second direction in the second heating trace is different from the arrangement density of the first segment along the second direction in the first heating trace.

9. The display panel according to claim 7, characterized in that, The display area includes a first side and a second side arranged opposite to each other along the first direction, and a third side connecting the first side and the second side. The angle between the third side and the first side is an acute angle, and the angle between the third side and the second side is an obtuse angle. The first edge is divided into a first sub-edge and a second sub-edge by a first virtual line, and the first virtual line extends along the first direction; The first sub-display area includes the first sub-edge, the second edge, and the first virtual line; the second sub-display area includes at least one first type of second sub-display area, the first type of second sub-display area including the second sub-edge, the third edge, and the first virtual line; Both ends of the first heating trace and both ends of the second heating trace in the first type of second sub-display area are located on one side of the first edge of the display area; In the first heating trace, the two ends of the first sub-segment extend toward the first sub-side and the second side, respectively; in the first type of second sub-display area, the two ends of the first heating trace extend toward the second sub-side and the third side, respectively.

10. The display panel according to claim 7, characterized in that, The display area includes a first side and a second side arranged opposite to each other along the first direction, and a fourth side connecting the first side and the second side. The angle between the fourth side and the first side is an obtuse angle, and the angle between the fourth side and the second side is an acute angle. The second edge is divided into a third sub-edge and a fourth sub-edge by a second virtual line, and the second virtual line extends along the first direction; The first sub-display area includes the first edge, the third sub-edge, and the second virtual line; the second sub-display area includes at least one second type of second sub-display area, and the second type of second sub-display area includes the fourth sub-edge, the fourth edge, and the second virtual line; Both ends of the first heating trace are located on one side of the first side of the display area, and both ends of the second heating trace in the second type of second sub-display area are located on one side of the fourth side of the display area; In the first heating trace, both ends of the first sub-segment extend toward the first side and the third sub-side, respectively; in the second type of second sub-display area, both ends of the first sub-segment of the second heating trace extend toward the fourth side and the fourth sub-side, respectively.

11. The display panel according to claim 7, characterized in that, The display area includes a first side and a second side arranged opposite to each other along the first direction, and a third side and a fourth side connecting the first side and the second side; the angle between the third side and the first side is an acute angle, and the angle between the third side and the second side is an obtuse angle; the angle between the fourth side and the first side is an obtuse angle, and the angle between the fourth side and the second side is an acute angle. The first edge is divided into a first sub-edge and a second sub-edge by a first virtual line, and the first virtual line extends along the first direction; the second edge is divided into a third sub-edge and a fourth sub-edge by a second virtual line, and the second virtual line extends along the first direction. The first sub-display area includes the first sub-edge, the third sub-edge, the first virtual line, and the second virtual line; the second sub-display area includes a first type of second sub-display area and a second type of second sub-display area, the first type of second sub-display area includes the second sub-edge, the third edge, and the first virtual line, and the second type of second sub-display area includes the fourth sub-edge, the fourth edge, and the second virtual line; Both ends of the first heating trace and both ends of the second heating trace in the first type of second sub-display area are located on one side of the first side of the display area; both ends of the second heating trace in the second type of second sub-display area are located on one side of the fourth side of the display area; In the first heating trace, the two ends of the first sub-segment extend toward the first sub-side and the third sub-side, respectively; in the first type of second sub-display area, the two ends of the first sub-segment of the second heating trace extend toward the second sub-side and the third side, respectively; in the second type of second sub-display area, the two ends of the first sub-segment of the second heating trace extend toward the fourth side and the fourth sub-side, respectively.

12. The display panel according to any one of claims 9-11, characterized in that, Along the direction close to the first sub-display area, the length of each of the first sub-segments in the second heating trace gradually increases.

13. The display panel according to any one of claims 9-11, characterized in that, Along the direction closer to the first sub-display area, the number of the first sub-segments of each of the second heating traces in the second sub-display area gradually decreases.

14. The display panel according to any one of claims 9-11, characterized in that, The first side and the second side are arranged in parallel. Each of the first sub-segments in the first sub-display area is evenly arranged along the second direction.

15. The display panel according to any one of claims 9-11, wherein the first side and the second side are not parallel; In the first sub-display area, the number of the first sub-segments of each of the first heating traces is equal; The first heating trace includes a first type of first heating trace and a second type of first heating trace. The average length of the first segment in the second type of first heating trace is less than the average length of the first segment in the first type of first heating trace. The arrangement density of the first segment along the second direction in the second type of first heating trace is less than the arrangement density of the first segment along the second direction in the first type of first heating trace.

16. The display panel according to claim 9, characterized in that, The display panel includes a positive heating bus and a negative heating bus located in the non-display area. One end of the heating trace is electrically connected to the positive heating bus, and the other end of the heating trace is electrically connected to the negative heating bus. The positive heating bus and the negative heating bus are located on one side of the first side of the display area and extend along the first side.

17. The display panel according to claim 10 or 11, characterized in that, The display panel includes a positive heating bus and a negative heating bus located in the non-display area. One end of the heating trace is electrically connected to the positive heating bus, and the other end of the heating trace is electrically connected to the negative heating bus. The positive heating bus includes a first part and a second part, and the negative heating bus includes a third part and a fourth part; the first part and the third part are located on one side of the first side of the display area and extend along the first side; the second part and the fourth part are located on one side of the fourth side of the display area and extend along the fourth side.

18. The display panel according to claim 1, characterized in that, The display panel includes multiple sub-pixels arranged in an array along the row and column directions; The display panel includes multiple gate lines and multiple data lines, wherein the gate lines extend along the row direction and the data lines extend along the column direction; Each row of sub-pixels is electrically connected to at least one gate line, and at least one column of sub-pixels is electrically connected to one data line. The extension direction of the first sub-segment in the heating trace is the same as the extension direction of the gate line.

19. The display panel according to claim 18, characterized in that, The display panel includes a substrate and a first metal layer and a second metal layer stacked on one side of the substrate; The gate line is located in the first metal layer, and the data line is located in the second metal layer; The heating trace is located in the first metal layer; the first sub-segment of the heating trace is located between at least partially adjacent gate lines; in a direction perpendicular to the plane of the substrate, the first sub-segment of the heating trace overlaps with a row of sub-pixels.

20. The display panel according to claim 18, characterized in that, The display panel includes a substrate and a first metal layer, a second metal layer and a third metal layer stacked on one side of the substrate; The display panel also includes multiple touch lines, the extension direction of which is the same as that of the data lines; The gate line is located in the first metal layer, and the data line and the touch line are located in the second metal layer and the third metal layer, respectively; The heating trace is located in the first metal layer; the first sub-segment of the heating trace is located between at least partially adjacent gate lines; in a direction perpendicular to the plane of the substrate, the first sub-segment of the heating trace overlaps with a row of sub-pixels.

21. The display panel according to claim 20, characterized in that, In a row of sub-pixels, any two adjacent sub-pixels emit different colors, while in a column of sub-pixels, all sub-pixels emit the same color. Each row of sub-pixels is electrically connected to a gate line, and each column of sub-pixels is electrically connected to a data line; in a direction perpendicular to the plane of the substrate, the data line and the touch line at least partially overlap. Alternatively, a row of sub-pixels is electrically connected to two gate lines, the two gate lines electrically connected to a row of sub-pixels are located on both sides of the row of sub-pixels along the column direction, and two adjacent sub-pixels in a row are electrically connected to different gate lines and electrically connected to the same data line; the orthographic projection of the touch line on the plane of the substrate is located between the orthographic projections of two adjacent data lines on the plane of the substrate.

22. The display panel according to claim 18, characterized in that, The display panel includes a substrate and a first metal layer, a second metal layer and a third metal layer stacked on one side of the substrate; The display panel also includes multiple touch lines, the extension direction of which is the same as that of the data lines; The gate line is located in the first metal layer, the data line and the touch line are both located in one of the second metal layer and the third metal layer, and the heating trace is located in the other of the second metal layer and the third metal layer.

23. The display panel according to claim 22, characterized in that, In a row of sub-pixels, all sub-pixels emit the same color, while in a column of sub-pixels, any two adjacent sub-pixels emit different colors. A row of sub-pixels is electrically connected to a gate line, and a column of sub-pixels is electrically connected to a data line; the touch line is located between two adjacent data lines, and in a direction perpendicular to the plane of the substrate, the touch line overlaps with a column of sub-pixels; In a direction perpendicular to the plane of the substrate, the first segment of the heating trace at least partially overlaps with the gate line.

24. The display panel according to claim 1, characterized in that, The display panel includes multiple sub-pixels arranged in an array along the row and column directions; The display panel includes multiple gate lines and multiple data lines, wherein the gate lines extend along the row direction and the data lines extend along the column direction; Each row of sub-pixels is electrically connected to at least one gate line, and at least one column of sub-pixels is electrically connected to one data line. The extension direction of the first sub-segment in the heating trace is the same as the extension direction of the data line.

25. The display panel according to claim 24, characterized in that, The display panel includes a substrate and a first metal layer and a second metal layer stacked on one side of the substrate; The gate line is located in the first metal layer, and the data line is located in the second metal layer; The heating trace is located in the second metal layer and is insulated from the data line.

26. The display panel according to claim 25, characterized in that, In a row of sub-pixels, any two adjacent sub-pixels emit different colors, while in a column of sub-pixels, all sub-pixels emit the same color. A column of the sub-pixels is electrically connected to a data line, and the data line electrically connected to the column of the sub-pixels is located on one side of the column of sub-pixels along the row direction; The display panel includes multiple columns of pixel groups, and each column of pixel group includes three columns of sub-pixels, wherein the emission colors of the three columns of sub-pixels are different from each other; The first sub-segment of the heated trace is located between at least two partially adjacent columns of the pixel group.

27. The display panel according to claim 25, characterized in that, In a row of sub-pixels, any two adjacent sub-pixels emit different colors, while in a column of sub-pixels, all sub-pixels emit the same color. Each row of sub-pixels is electrically connected to two gate lines. The two gate lines electrically connected to each row of sub-pixels are located on both sides of the row of sub-pixels along the column direction. Two adjacent sub-pixels in a row are electrically connected to different gate lines and are electrically connected to the same data line. The first segment of the heating trace has its orthographic projection on the plane of the substrate located between at least two adjacent orthographic projections of the data lines on the plane of the substrate.

28. The display panel according to claim 25, characterized in that, In a row of sub-pixels, all sub-pixels emit the same color, while in a column of sub-pixels, any two adjacent sub-pixels emit different colors. Each row of sub-pixels is electrically connected to one gate line, and each column of sub-pixels is electrically connected to one data line. The first sub-segment of the heating trace is located between at least two adjacent data lines, and in a direction perpendicular to the plane of the substrate, the first sub-segment of the heating trace overlaps with a column of sub-pixels.

29. The display panel according to claim 24, characterized in that, The display panel includes a substrate and a first metal layer, a second metal layer and a third metal layer stacked on one side of the substrate; The display panel also includes multiple touch lines, the extension direction of which is the same as that of the data lines; The gate line is located in the first metal layer, the data line and the touch line are located in the second metal layer and the third metal layer, respectively, and the heating trace is located in the second metal layer or the third metal layer.

30. The display panel according to claim 29, characterized in that, In a row of sub-pixels, any two adjacent sub-pixels emit different colors, while in a column of sub-pixels, all sub-pixels emit the same color. A column of the sub-pixels is electrically connected to a data line, and the data line electrically connected to the column of the sub-pixels is located on one side of the column of sub-pixels along the row direction; The display panel includes multiple columns of pixel groups, and each column of pixel group includes three columns of sub-pixels, wherein the emission colors of the three columns of sub-pixels are different from each other; In a direction perpendicular to the plane of the substrate, the touch line and the data line at least partially overlap, and the first sub-segment of the heating trace is located between at least two adjacent columns of the pixel group; Alternatively, in a direction perpendicular to the plane of the substrate, the first segment of the heating trace overlaps with at least a portion of the data line, and the touch line is located between two adjacent columns of the pixel group.

31. The display panel according to claim 26 or 30, characterized in that, In a column of pixels, the width of the sub-pixels in a column having the first sub-segment on one side along the row direction is smaller than the width of the sub-pixels in other columns.

32. The display panel according to claim 29, characterized in that, In a row of sub-pixels, any two adjacent sub-pixels emit different colors, while in a column of sub-pixels, all sub-pixels emit the same color. Each row of sub-pixels is electrically connected to two gate lines. The two gate lines connected to each row of sub-pixels are located on both sides of the row of sub-pixels. Two adjacent sub-pixels in a row are electrically connected to different gate lines and to the same data line. In a direction perpendicular to the plane of the substrate, the touch line and the data line at least partially overlap, and the first sub-segment of the heating trace is located between at least partially adjacent two data lines; Alternatively, in a direction perpendicular to the plane of the substrate, the first segment of the heating trace overlaps with at least a portion of the data line, and the touch line is located between two adjacent data lines.

33. The display panel according to claim 29, characterized in that, In a row of sub-pixels, all sub-pixels emit the same color, while in a column of sub-pixels, any two adjacent sub-pixels emit different colors. Each row of sub-pixels is electrically connected to one gate line, and each column of sub-pixels is electrically connected to one data line. The first sub-segment of the heating trace is located between at least two adjacent data lines. In a direction perpendicular to the plane of the substrate, the first sub-segment of the heating trace overlaps with a column of sub-pixels, and the touch line overlaps at least partially with the data line. Alternatively, the touch line is located between two adjacent data lines, and in a direction perpendicular to the plane of the substrate, the touch line overlaps with a column of sub-pixels, and the first segment of the heated trace overlaps with at least a portion of the data lines.

34. The display panel according to claim 1, characterized in that, The non-display area includes a first region, a second region, and a third region located on one side of the display area and arranged in a direction away from the display area, wherein a driver integrated circuit is bonded to the third region; The first region includes a positive heating bus and a negative heating bus. One end of the heating trace is electrically connected to the positive heating bus, and the other end of the heating trace is electrically connected to the negative heating bus. The display area includes multiple data lines and multiple touch lines, and the second area includes multiple data fan-out lines and multiple touch fan-out lines. The data lines are electrically connected to the driver integrated circuit through the data fan-out lines, and the touch lines are electrically connected to the driver integrated circuit through the touch fan-out lines. The data fan-out line includes a first data fan-out line and a second data fan-out line. The first data fan-out line and the second data fan-out line are electrically connected to different data lines. The first data fan-out line and the second data fan-out line are arranged alternately and are disposed in different layers.

35. The display panel according to claim 34, characterized in that, The first area also includes a data connection line, which is electrically connected to the first data fan-out line or the second data fan-out line via the data connection line. The first data fan-out line and the second data fan-out line are electrically connected to the driver integrated circuit. The first area also includes a touch connection line, which is electrically connected to the touch fan-out line and the touch fan-out line is electrically connected to the driver integrated circuit.

36. A display device, characterized in that, Includes the display panel as described in any one of claims 1-35.

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