A display panel and display device

Abstract

The application discloses a display panel and a display device, the display area of the display panel comprises a first display area and at least one second display area; at least a heating structure is arranged in the display area, the heating structure comprises a first heating structure and a second heating structure; the first heating structure is arranged in the first display area, and the first heating structure comprises a first heating input end, a first heating wire and a first heating output end, the first heating wire is connected with the first heating input end and the first heating output end respectively; the second heating structure is arranged in the second display area, and the second heating structure comprises a second heating input end, a second heating wire and a second heating output end, the second heating wire is connected with the second heating input end and the second heating output end respectively; wherein the length of the first heating wire is different from the length of the second heating wire. By arranging different heating structures in different areas, the overall heating regulation can be more precise, and the overall display effect can be ensured.

Description

Technical Field

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

[0002] As the application fields of display panels gradually expand, new requirements are being placed on their performance. For example, display panels need to operate in low-temperature environments for extended periods, but low temperatures can significantly impact their response time and other performance characteristics. Therefore, to ensure the normal operation of display panels, measures must be taken to broaden the low-temperature operating range of display devices and guarantee their performance in low-temperature environments. Summary of the Invention

[0003] This invention provides a display panel and a display device. By setting different heating structures in different areas, more precise heating control can be achieved, thereby ensuring the overall display effect.

[0004] In a first aspect, embodiments of the present invention provide a display panel, including a display area;

[0005] The display area includes a first display area and at least one second display area;

[0006] The display panel further includes a heating structure located at least in the display area. The heating structure includes a first heating structure and a second heating structure. The first heating structure is located in the first display area and includes a first heating input terminal, a first heating trace, and a first heating output terminal. The first heating trace is connected to the first heating input terminal and the first heating output terminal, respectively. The second heating structure is located in the second display area and includes a second heating input terminal, a second heating trace, and a second heating output terminal. The second heating trace is connected to the second heating input terminal and the second heating output terminal, respectively.

[0007] The length of the first heating trace is different from the length of the second heating trace.

[0008] Secondly, embodiments of the present invention provide a display device, including the display panel described in the first aspect.

[0009] This invention provides a display panel with a first display area and a second display area. The heating structure of the display panel includes a first heating structure located in the first display area and a second heating structure located in the second display area. Specifically, the first heating structure includes a first heating input terminal, a first heating trace, and a first heating output terminal. The second heating structure includes a second heating input terminal, a second heating trace, and a second heating output terminal. Furthermore, the lengths of the first and second heating traces are different; that is, the first and second heating structures are two sets of heating structures. By setting different heating structures in different first and second display areas, more precise overall heating control can be achieved, thereby ensuring the overall display effect. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0013] Figure 3 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0014] Figure 4 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0015] Figure 5 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention.

[0016] Figure 6 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0017] Figure 7 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0018] Figure 8 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0019] Figure 9 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0020] Figure 10 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0021] Figure 11 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0022] Figure 12 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0023] Figure 13 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0024] Figure 14 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0025] Figure 15 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0026] Figure 16 This is a schematic diagram of the structure of a display panel in the second display area according to an embodiment of the present invention;

[0027] Figure 17 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0028] Figure 18 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0029] Figure 19 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0030] Figure 20 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0031] Figure 21 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0032] Figure 22 yes Figure 21 An enlarged schematic diagram of region A or B in the middle;

[0033] Figure 23 yes Figure 21 Another enlarged schematic diagram of region A or B in the middle;

[0034] Figure 24 yes Figure 21 Another enlarged schematic diagram of region A or B in the middle;

[0035] Figure 25 yes Figure 21Another enlarged schematic diagram of region A or B in the middle;

[0036] Figure 26 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0037] Figure 27 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0038] Figure 28 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Detailed Implementation

[0039] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0040] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a system, product, or device comprising a series of units is not necessarily limited to those steps or units explicitly listed, but may include other units not explicitly listed or inherent to such products or devices.

[0041] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention, for reference. Figures 1 to 3As shown, the display panel 10 provided in this embodiment of the invention includes a display area 100, which includes a first display area 110 and at least one second display area 120. The display panel 10 also includes a heating structure 200 located at least in the display area 100. The heating structure 200 includes a first heating structure 210 and a second heating structure 220. The first heating structure 210 is located in the first display area 110 and includes a first heating input terminal 211, a first heating trace 212, and a first heating output terminal 213. The first heating trace 212 is connected to the first heating input terminal 211 and the first heating output terminal 213, respectively. The second heating structure 220 is located in the second display area 120 and includes a second heating input terminal 221, a second heating trace 222, and a second heating output terminal 223. The second heating trace 222 is connected to the second heating input terminal 221 and the second heating output terminal 223, respectively. The length of the first heating trace 212 is different from the length of the second heating trace 222.

[0042] The display panel 10 includes a display area 100, which is used to implement the display function of the display panel 10. Specifically, the display area 100 includes a first display area 110 and a second display area 120, wherein the number of second display areas 120 can be varied, depending on the specific configuration. Figure 1 and Figure 3 As shown, the example is given with display area 100 including a second display area 120. (Refer to...) Figure 2 As shown, the example given is that display area 100 includes two second display areas 120. This embodiment of the invention does not impose specific limitations on this. Furthermore, to ensure the universality of the display panel 10, the shape of the display panel 10 can be diverse, and consequently, the shape of the display area 100 can also be diverse. The first display area 110 can be a normal display area within the display area 100, and the second display area 120 can be an irregularly shaped display area within the display area 100. For example, refer to... Figure 1 As shown, the second display area 120 is a display area in the display panel 10 that includes arcs or chamfers, participating in... Figure 2 or Figure 3 As shown, the second display area 120 can be a display area surrounding some sensor setting areas in the display area 100. For example, the second display area 120 is the area surrounding the camera. This embodiment of the invention does not specifically limit this.

[0043] Furthermore, the display panel 10 also includes a heating structure 200, which can provide a certain amount of heat to the display panel 10, ensuring that the display panel 10 maintains normal display operation even in extreme environments such as cold. The heating structure 200 is at least partially located in the display area and includes a first heating structure 210 and a second heating structure 220. Specifically, the first heating structure 210 is located in the first display area 110, and the second heating structure 220 is located in the second display area 120, that is, different display areas include different heating structures 200.

[0044] Furthermore, the first heating structure 210 includes a first heating input terminal 211, a first heating trace 212, and a second heating output terminal 213. The second heating structure 220 includes a second heating input terminal 221, a second heating trace 222, and a second heating output terminal 223. The first heating trace 212 is electrically connected to both the first heating input terminal 211 and the second heating output terminal 213, and the second heating trace 222 is connected to both the second heating input terminal 221 and the second heating output terminal 223. By adaptively adjusting the voltage of the heating 200 between different heating input and output terminals, the heat of the heating traces in different display areas can be adjusted, thereby achieving more precise heat control in different display areas.

[0045] Furthermore, due to the differences in position and shape between the first display area 110 and the second display area 120, refer to Figures 1 to 3 As shown, the length of the first heating trace 212 is different from the length of the second heating trace 222, further demonstrating that the first heating structure 210 and the second heating structure 220 are two sets of heating structures 200. The lengths of the first heating trace 212 and the second heating trace 222 are adjusted according to the shapes of the first display 110 and the second display 120. The technical solution provided by this embodiment of the invention, by employing different heating structures 200 in different display areas, and further, by using different heating voltage differences, eliminates the need for extensive calculations and precise adjustments to consider the trace widths of different heating structures 200, thereby reducing costs while still ensuring the overall display effect of the display panel 10.

[0046] In summary, the display panel provided in this embodiment of the invention includes a first heating structure and a second heating structure, with different heating trace lengths in the different heating structures. Furthermore, the first heating structure and the second heating structure are two sets of heating structures. By setting different heating structures in different first and second display areas, more precise overall heating control can be achieved, thereby ensuring the overall display effect.

[0047] Continue to refer to Figures 1 to 3The voltage difference between the first heating input terminal 211 and the first heating output terminal 213 is the first voltage difference, and the voltage difference between the second heating input terminal 221 and the second heating output terminal 223 is the second voltage difference. The first voltage difference and the second voltage difference are different.

[0048] Furthermore, in the first heating structure 210, there is a voltage difference between the first heating input terminal 211 and the second heating output terminal 213, referred to as the first voltage difference. In the second heating structure 220, there is also a voltage difference between the second heating input terminal 221 and the second heating output terminal 223, referred to as the second voltage difference. The first voltage difference and the second voltage difference can be different.

[0049] Based on the differences in position and shape between the first display area 110 and the second display area 120, in order to ensure that the heat provided by the first heating structure 210 to each area in the first display area 110 and the heat provided by the second heating structure 220 to each area in the second display area 120 are similar or the same, the first voltage difference and the second voltage difference can be adjusted respectively to ensure that the heating effect is the same or similar, thereby ensuring the overall heating effect of the display panel 10 and thus ensuring the overall display effect of the display panel 10.

[0050] For example, refer to Figure 2 As shown, when the area of ​​the second display area 120 is smaller than that of the first display area 110, the length of the second heating trace 222 located in the second display area 120 is naturally shorter than the length of the first heating trace 212 located in the first display area 110. Simultaneously, the second heating trace 222 is closer to the edge area than the first heating trace 212. This means that the heat dissipation effect in the second display area 120 is better than that in the first display area 110. Based on this difference in heat dissipation effects between the two areas, there is a certain difference in the voltage difference between the first heating trace 212 and the second heating trace 222, thereby ensuring the overall heating effect of the display panel 10. In other words, to ensure the overall heating and heat dissipation effect of the display panel 10, the first voltage difference and the second voltage difference are further adjusted according to different actual situations to ensure a uniform heating effect for the display panel 10.

[0051] Continue to refer to Figure 2 and Figure 3 As shown, the display area 100 also includes a sensor setting area 130; the second display area 120 surrounds at least a portion of the sensor setting area 130.

[0052] Specifically, the display area 100 also includes a sensor setting area 130, which can be used to house optical sensors, thereby enabling functions such as facial recognition or selfies on the display panel 10. In other words, by setting up the sensor setting area 130, the practical functions of the display panel 10 are enriched. Furthermore, since the sensor setting area 130 occupies a portion of the display area 100, the display area 100 surrounding at least a portion of the sensor setting area 130 is designated as a second display area 120. That is, the second display area 120 can be an irregularly shaped display area surrounding the sensor setting area 130.

[0053] Figure 4 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention, for reference. Figure 4 and Figure 5 As shown, the second display area 120 includes multiple display sub-areas 121, including a first display sub-area 121A and a second display sub-area 121B, which are located on opposite sides of the sensor setting area 130. The second heating structure includes a first sub-heating structure 230 located in the first display sub-area 121A and a second sub-heating structure 240 located in the second display sub-area 121B. The first sub-heating structure 230 includes a third heating input terminal 231, a third heating trace 232, and a third heating output terminal 233, with the third heating trace 232 connected to the third heating input terminal 231 and the third heating output terminal 233, respectively. The second sub-heating structure 240 includes a fourth heating input terminal 241, a fourth heating trace 242, and a fourth heating output terminal 243, with the fourth heating trace 242 connected to the fourth heating input terminal 241 and the fourth heating output terminal 243, respectively.

[0054] Specifically, the second display area 120 can be divided into multiple display sub-areas 121 according to different positions or shapes, see reference. Figure 4 and Figure 5 As shown, the display sub-area 121 includes a first display sub-area 121A and a second display sub-area 121B located on both sides of the sensor setting area 130. That is, the display panel 10 provided in this embodiment of the invention can be divided more finely according to the specific shape and position of the display area 100.

[0055] Furthermore, the second heating structure 220 located in the second display area 120 includes a first sub-heating structure 230 and a second sub-heating structure 240. That is, based on the refined display area 100, a more refined heating structure 200 is set to ensure the overall heating effect of the display panel 10 and the display effect of the display panel 10. Specifically, the first sub-heating structure 230 is located in the first display sub-area 121A, and the second sub-heating structure 240 is located in the second display sub-area 121B. The first sub-heating structure 230 includes a third heating input terminal 231, a third heating trace 232, and a third heating output terminal 233. The second sub-heating structure 240 includes a fourth heating input terminal 241, a fourth heating trace 242, and a fourth heating output terminal 243. The third heating trace 232 is connected to the third heating input terminal 231 and the third heating output terminal 233, respectively, and the fourth heating trace 242 is connected to the fourth heating input terminal 241 and the fourth heating output terminal 243, respectively. By adaptively adjusting the voltage of the heating element 200 between different heating input and heating output terminals, the heat of the heating traces in different refined display areas can be adjusted, thereby achieving more precise heat control of the refined display areas.

[0056] Figure 6 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 7 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 8 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 9 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention, for reference. Figures 6 to 9 As shown, the third heating output terminal 233 and the fourth heating output terminal 243 are connected; or, the third heating input terminal 231 and the fourth heating input terminal 241 are connected.

[0057] Furthermore, in the first sub-heating structure 230 and the second sub-heating structure 240, the input or output terminals can be electrically connected, that is, the input or output terminals in the first sub-heating structure 230 and the second sub-heating structure 240 form a common input or output terminal, reducing the area occupied by the heating structure 200, thereby reducing the overall wiring area occupied by the display panel 10 and providing more space for other components in the display panel 10.

[0058] For details, please refer to Figure 6 and Figure 7 As shown, connecting the third heating output terminal 233 and the fourth heating output terminal 243 can reduce the space required for one output terminal and related wiring. (Refer to...) Figure 8 and Figure 9As shown, the third heating input terminal 231 and the fourth heating input terminal 241 are connected, which reduces the space required for one input terminal and related wiring. It should be noted that since the input and output terminals are not shared simultaneously, the first sub-heating structure 230 and the second sub-heating structure 240 remain two different heating structures 200, allowing for adjustment of different heating effects in different areas. This ensures precise control of the heating effect of the display panel 10 and guarantees the display effect of the display panel 10.

[0059] Figure 10 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 11 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 12 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 13 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention, for reference. Figures 10 to 13 As shown, the third heating output terminal 233 and / or the fourth heating output terminal 243 are connected to the first heating output terminal 213; or, the third heating input terminal 231 and / or the fourth heating input terminal 241 are connected to the first heating input terminal 211.

[0060] Furthermore, in the first sub-heating structure 230 and the second sub-heating structure 240, the input or output terminal can be electrically connected to the input or output terminal in the first heating structure 210. That is, the input terminal in the first sub-heating structure 230 and / or the second sub-heating structure 240 is electrically connected to the first heating input terminal 211, or the output terminal in the first sub-heating structure 230 and / or the second sub-heating structure 240 is electrically connected to the first heating output terminal 213. This can also reduce the area occupied by the heating structure 200, thereby reducing the overall wiring area occupied by the display panel 10 and providing more space for other components in the display panel 10.

[0061] For example, refer to Figure 10 As shown, the third heating input terminal 231 in the first sub-heating structure 230 and the fourth heating input terminal 241 in the second sub-heating structure 240 are both electrically connected to the first heating input terminal 211, which reduces the space required for the two input terminals and related wiring. (Refer to...) Figure 11 As shown, the third heating output terminal 233 in the first sub-heating structure 230 and the fourth heating output terminal 243 in the second sub-heating structure 240 are both electrically connected to the second heating output terminal 213, which reduces the space required for the two output terminals and related wiring. (Reference) Figure 12 As shown, by simply connecting the third heating input terminal 231 in the first sub-heating structure 230 to the first heating input terminal 211, the space required for setting up one input terminal and related wiring can be reduced. (Refer to...) Figure 13 As shown, by electrically connecting only the fourth heating output terminal 243 in the second sub-heating structure 240 to the second heating output terminal 213, the space required for setting up one output terminal and related wiring can be reduced. Similarly, since the input terminal and output terminal are not shared simultaneously, the first sub-heating structure 230, the second sub-heating structure 240, and the first heating structure 210 are still different heating structures 200, which can realize the adjustment of different heating effects in different areas, thereby ensuring the precise control of the heating effect of the display panel 10 and ensuring the display effect of the display panel 10.

[0062] Figure 14 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 15 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention, for reference. Figure 14 and Figure 15 As shown, the second display area 120 includes multiple display sub-areas 121, including a first display sub-area 121A and a second display sub-area 121B, which are located on opposite sides of the sensor setting area 130. A second heating input terminal 221 is located in the first display sub-area 121A and is connected to a second heating trace 222 located in the first display sub-area 121A. A second heating output terminal 223 is located in the second display sub-area 121B and is connected to a second heating trace 222 located in the second display sub-area 121B. The second heating structure 220 also includes a heating connection portion 224, which is connected to the second heating trace 222 located in the first display sub-area 121A and the second heating trace 222 located in the second display sub-area 121B, respectively.

[0063] Specifically, the second display area 120 includes multiple display sub-areas 121, that is, the second display area 120 is further subdivided according to the shape and position of the display area, as shown in the reference. Figure 14 and Figure 15 As shown, the second display area 120 is illustrated using two display sub-areas 121 as an example. Specifically, the display sub-area 121 includes a first display sub-area 121A and a second display sub-area 121B. The second heating input terminal 221 is located in the first display sub-area 121A, and the second heating output terminal 223 is located in the second display sub-area 121B. That is, the input and output terminals of the second heating structure 220 are located in different display sub-areas 121. In other words, different display sub-areas 121 can use the same heating structure 200, further reducing the wiring space of the heating structure 200 and reducing the manufacturing cost of the display panel 10.

[0064] Furthermore, the second heating structure 220 also includes a heating connection portion 224, through which the second heating lines 222 of different display sub-regions 121 are connected. That is, the heating connection portion 224 is connected to the second heating line 222 located in the first display sub-region 121A and the second heating line 222 located in the second display sub-region 121B respectively, thereby realizing that the heating structures 200 of the first display sub-region 121A and the second display sub-region 121B are the same heating structure 200.

[0065] Figure 16 This is a schematic diagram of the structure of a display panel in the second display area according to an embodiment of the present invention, for reference. Figures 14 to 16 As shown, the line width of the heating connection 224 is greater than the line width of the second heating trace 222; and / or, the sheet resistance of the heating connection 224 is less than the sheet resistance of the second heating trace 222.

[0066] refer to Figure 16 As shown, for ease of explanation, we define the node voltages at u1 as VGH and the node voltages at u2 as VGL. In reality, there is a voltage drop on the VGH and VGL buses, with the voltage at the far end being lower; this is not specifically defined here. For ease of explanation, except for the left and right VGH and VGL buses, all other line widths in the diagram are assumed to be consistent. That is, based on consistent line widths, the resistance between u1 and u11 is R, the resistance between u1 and u12 is R, the resistance between u1 and u13 is R, the resistance between u1 and u14 is R, and the resistance between u11 and u12 is R', the resistance between u12 and u13 is R', and the resistance between u13 and u14 is R'". Furthermore, as shown in the diagram, a, b, c, d, etc., represent the current in each segment. Since the sensor setting area 130... The design is symmetrical, so we only need to calculate up to node u3. The voltage at node u3 is (VGH-VGL) / 2. Since the voltage at node u12 is consistent, we have: a*(R+R')=b*R; since the voltage at node u13 is consistent, we have: b*R+(a+b)*R'=c*R; and by transferring the voltage from node u14, we have: c*R+(a+b+c)*R'=d*R; u3=d*R+(a+b+c+d)*R”=(VGH-VGL) / 2. Because of the presence of R', the currents at a, b, and c must be less than that at d. Therefore, to minimize the difference in heat generation between regions a, b, and c, R' must be small, meaning the larger the linewidth or the smaller the sheet resistance of the material in the region containing R', the better.

[0067] The above calculations show that the resistances between u11 and u12, u12 and u13, and u13 and u14 should be minimized to reduce voltage drop and thus ensure the overall heating uniformity of the display panel 10. Specifically, this can be achieved by adjusting the line width and sheet resistance. For example, the line width of the connecting traces between different second heating traces 222 should be greater than the line width of the second heating trace 222; and / or, the sheet resistance of the connecting traces between different second heating traces 222 should be less than the sheet resistance of the second heating trace 222.

[0068] Continue to refer to Figure 16 As shown, the resistance between u1 and u11 is R, the resistance between u1 and u12 is R, the resistance between u1 and u13 is R, the resistance between u1 and u14 is R, and the resistance between u14 and u3 is R”, and the resistance between u15 and u3 is R”. By substituting the following six sets of parameters into (1) R'=R, R”=R; (2) R'=R, R”=10R; (3) R'=R, 10R”=R; (4) 500R'=R, R”=R; (5) 500R'=R, R”=10R; (6) 500R'=R, 10R”=R, the following formula can be used for calculation:

[0069]

[0070] Substituting the conditions (1), (2), (3), (4), (5), and (6) into the solution, we can obtain (U = (VGH - VGL) / 2).

[0071] It can be known that:

[0072] (1): (2): (3):

[0073] (4): (5):

[0074] (6):

[0075] Let U / R = t, and the currents of j and k be: U / (2R) = 0.5t. It can be seen that only conditions (3) and (6) can be greater than 0.5t, and (1) and (4) are next. Therefore, the resistance of R” needs to be less than R in order to make the current continuous in the irregular region.

[0076] Based on the calculation results, refer to Figure 17 As shown, the line width of the heating connection 224 can be greater than the line width of the second heating trace 222. Furthermore, the sheet resistance of the trace can be adjusted while adjusting the line width; however, this embodiment of the invention does not impose specific limitations on this.

[0077] Continue to refer to Figure 14 and Figure 15 As shown, the heating connection 224 surrounds at least a portion of the sensor mounting area 130.

[0078] Furthermore, the heating connection 224 can be arranged around part of the sensor setting area 130. By attaching the heating connection 224 to the sensor setting area 130, the space occupied by the wiring of the heating structure 200 can be reduced.

[0079] Further reference Figure 14 and Figure 15 As shown, the heating connection part 224 has a first point S1 and a second point S2. The minimum distance between the first point S1 and the sensor setting area 130 is L1, and the minimum distance between the second point S2 and the sensor setting area 130 is L2; ​​where L1 = L2, and L1 and L2 are positive numbers.

[0080] For details, please refer to Figure 14 As shown, the first point S1 and the second point S2 are not fixed points, nor are they an actual electrical connection; they are merely used to illustrate the distance between the heating connection 224 and the sensor mounting area 130. When L1 = L2, and the heating connection 224 is fitted to the sensor mounting area 130, that is, the shape of the heating connection 224 surrounding the sensor mounting area 130 is similar to the shape of the sensor mounting area 130. For example, refer to... Figure 15 As shown, the heating connection 224 surrounds a rectangular portion that is similar in shape to the rectangular shape of the sensor mounting area 130, as indicated by reference. Figure 16 As shown, the arc-shaped portion surrounding the heating connection 224 is similar in shape to the circular shape of the sensor mounting area 130. The shape of the heating connection 224 can vary, and this embodiment of the invention does not impose a specific limitation on it. By aligning the shape and position of the heating connection 224 with the sensor mounting area 130, the space occupied by the heating structure 200 is further reduced, improving the space utilization of the display panel 10. Furthermore, by regularizing the shape of the heating structure 200, the design cost of the display panel 10 is simplified.

[0081] Figure 17 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 18 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 19 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 20 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention, for reference. Figures 17 to 20As shown, the first display sub-area 121A includes a second A display area 1211 and a second B display area 1212, with the second A display area 1211 located near the center of the sensor setting area 130 in the second B display area 1212; the second heating structure 220 includes n second heating input terminals 221 and second heating traces 222 located in the second A display area 1211; the second heating structure includes m second heating input terminals 221 and second heating traces 222 located in the second B display area 1212; where m≤n, and m and n are positive integers.

[0082] The second display area 120 can be further divided into multiple display sub-areas 121 through detailed subdivision. Furthermore, each display sub-area 121 can be further subdivided, for example, as shown in the reference... Figure 17 and Figure 18 As shown, the first display sub-area 121A includes the second A display area 1211 and the second B display area 1212. The corresponding second heating structure 220 in the different refined first display sub-areas 121A are different, which reflects the refinement of the heating structure setting in the display panel 10, better realizes the overall heating effect of the display panel 10, and also reflects the diversity of the heating structure 200 setting.

[0083] in, Figures 17 to 20 Taking the first display sub-area 121A as an example for further detailed division, the same principle can be applied to the second display sub-area 121B. Since both methods operate on the same principle, further details are omitted. Specifically, the second heating structure 220 includes n second heating input terminals 221 and second heating traces 222 located in the second A display area 1211; the second heating structure includes m second heating input terminals 221 and second heating traces 222 located in the second B display area, where m differs from n. That is, the distribution number of the second heating structures 220 within the further subdivided display areas of the first display sub-area 121A varies. (Refer to...) Figures 17 to 20 As shown, the number of second heating input terminals 221 and second heating traces 222 of the second heating structure 220 in the display area near the sensor setting area 130 is greater than the number of second heating input terminals 221 and second heating traces 222 of the second heating structure 220 in the display area far from the sensor setting area 130. That is, the second heating structure 220 near the sensor setting area 130 is easier to connect to the heating connection part 224, and the overall wiring is simple and low cost. By setting the difference in quantity, the arrangement of the second heating structure 220 is set more reasonably.

[0084] Further reference Figure 17 and Figure 18 As shown, the input terminal of the second heating structure 220 in the second display area A 1211 and the second display area B 1212 is shared. (Refer to...) Figure 19 and Figure 20 As shown, the input terminals of the second A display area 1211 and the second B display area 1212 may not be shared, and this embodiment of the present invention does not impose specific limitations on this.

[0085] Continue to refer to Figures 17 to 20 As shown, the heating connection part 224 further includes a first heating connection part 2241 and a second heating connection part 2242; the first heating connection part 2241 is connected to n second heating traces 222 respectively; the second heating connection part 2242 is connected to m second heating input terminals 222 respectively; the line width of the first heating connection part 2241 is w1, and the line width of the second heating connection part 2242 is w2, where w2≤w1, and w1 and w2 are positive integers.

[0086] Specifically, the heating connection 224 further includes a first heating connection 2241 and a second heating connection 2242, wherein, reference Figures 17 to 20 As shown, the first heating connection 2241 is connected to the second heating trace 222 in the second A display area 1211, and the second heating connection 2242 is connected to the second heating trace 222 in the second B display area 1212. That is, the number of second heating traces 222 connected to the second heating connection 2242 is less than the number of second heating traces 222 connected to the first heating connection 2241. Based on the difference in the number of connected second heating traces 222, and in order to ensure a balanced heating effect, the line widths of the first heating connection 2241 and the second heating connection 2242 can be adjusted. For example, the line width of the first heating connection 2241 can be adjusted to be greater than the line width of the second heating connection 2242.

[0087] Figure 21 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 22 yes Figure 21 An enlarged schematic diagram of region A or B in the middle. Figure 23 yes Figure 21 Another enlarged schematic diagram of region A or B in the middle. Figure 24 yes Figure 21 Another enlarged schematic diagram of region A or B in the middle. Figure 25 yes Figure 21 Another enlarged diagram of region A or B in the middle, see reference. Figures 21 to 25As shown, the first display area 110 includes a first sub-pixel setting area 141 and a first signal trace setting area 142, and the second display area 120 includes a second sub-pixel setting area 151 and a second signal trace setting area 152; the first heating trace 212 is at least partially located in the first sub-pixel setting area 141, and the second heating trace 222 is at least partially located in the second sub-pixel setting area 151; or, the first heating trace 212 is at least partially located in the first signal trace setting area 142, and the second heating trace 222 is at least partially located in the second signal trace setting area 152.

[0088] Among them, reference Figure 21 As shown, both the first display area 110 and the second display area 120 of the display panel 10 include multiple sub-pixels P. The display function of the display panel 10 is realized by controlling the light emission of the sub-pixels P. Specifically, the sub-pixel P includes a light-transmitting area and a wiring area. The light-transmitting area enables the sub-pixel P to emit light for display, and the wiring area is provided with various wirings to ensure the control of the light emission of the sub-pixel P.

[0089] Specifically, the first display area 110 includes a first sub-pixel setting area 141 and a first signal trace setting area 142, and the second display area 120 includes a second sub-pixel setting area 151 and a second signal trace setting area 152. The first sub-pixel setting area 141 and the second sub-pixel setting area 151 are the light-transmitting areas of sub-pixel P, and the first signal trace setting area 142 and the second signal trace setting area 152 are the trace areas of sub-pixel P. To ensure a balanced heating effect at different sub-pixels P, i.e., to ensure consistent influence of the heating structure 200, the positions of the first heating trace 212 and the second heating trace 222 relative to the sub-pixel P should be consistent.

[0090] For example, refer to Figure 22 and Figure 23 As shown, the first heating trace 212 is at least partially located in the first sub-pixel setting area 141, while the second heating trace 222 is at least partially located in the second sub-pixel setting area 151. Alternatively, see another configuration. Figure 24 and Figure 25 As shown, the first heating trace 212 is at least partially located in the first signal trace setting area 142, while the second heating trace 222 is at least partially located in the second signal trace setting area 152. That is, the first heating structure 210 and the second heating structure 220 are positioned at the same location relative to the sub-pixel P, thus avoiding heat differences due to positional differences.

[0091] Furthermore, when the first heating trace 212 is located in the first sub-pixel setting area 141 and the second heating trace 222 is located in the second sub-pixel setting area 151, the materials of the first heating trace 212 and the second heating trace 222 can be indium tin oxide (ITO) metal oxide, further reducing the occlusion effect of the traces on the display. Furthermore, when the first heating trace 212 is located in the first signal trace setting area 142 and the second heating trace 222 is located in the second signal trace setting area 152, the first heating trace 212 can be co-layered with the data lines or gate signal lines located in the first signal trace setting area 142, and similarly, the second heating trace 222 can be co-layered with the data lines or gate signal lines located in the second signal trace setting area 152, thereby reducing the film thickness of the display panel 10 and facilitating the thinner design of the display panel 10.

[0092] Continue to refer to Figures 1 to 3 As shown, the first heating structure 210 further includes a first heating input bus 214 and a first heating output bus 215. The first heating input bus 214 is connected to one or more first heating input terminals 211, and the first heating output bus 215 is connected to one or more first heating output terminals 213. The second heating structure 220 further includes a second heating input bus 224 and a second heating output bus 225. The second heating input bus 224 is connected to one or more second heating input terminals 221, and the second heating output bus 225 is connected to one or more second heating output terminals 223.

[0093] For details, please refer to Figures 1 to 3 As shown, the first heating structure 210 further includes a first heating input bus 214 and a first heating output bus 215, and the second heating structure 220 further includes a second heating input bus 224 and a second heating output bus 225. The first heating input bus 214 is electrically connected to multiple first heating input terminals 211, and the first heating output bus 215 is electrically connected to multiple first heating output terminals 213, ensuring that each input and output terminal receives the same voltage signal, thereby guaranteeing a balanced heating effect of the first heating structure 210. Similarly, the second heating input bus 224 is electrically connected to multiple second heating input terminals 221, and the second heating output bus 225 is electrically connected to multiple second heating output terminals 223, ensuring that each input and output terminal receives the same voltage signal, thereby guaranteeing a balanced heating effect of the second heating structure 220.

[0094] Furthermore, the line widths of the first heating input bus 214 and the first heating output bus 215 are greater than the width of the first heating trace 212, and / or, the sheet resistances of the first heating input bus 214 and the first heating output bus 215 are less than the sheet resistance of the first heating trace 212; the line widths of the second heating input bus 224 and the second heating output bus 225 are greater than the width of the second heating trace 222, and / or, the sheet resistances of the second heating input bus 224 and the second heating output bus 225 are less than the sheet resistance of the second heating trace 222.

[0095] Furthermore, since there is a voltage drop on the heating bus, the resistance of the bus can be adjusted to reduce the voltage drop, thereby ensuring a small voltage drop and a more uniform heating effect in each area. Specifically, taking the first heating structure 210 as an example, the line width of the first heating input bus 214 and the first heating output bus 215 can be adjusted to be greater than the width of the first heating trace 212, or the sheet resistance of the first heating input bus 214 and the first heating output bus 215 can be made smaller than the sheet resistance of the first heating trace 212. Alternatively, the sheet resistance can be adjusted simultaneously with the line width. The same principle applies to the second heating structure 220, and will not be elaborated upon here.

[0096] Figure 26 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention, for reference. Figure 26 As shown, the display panel 10 also includes a non-display area 300, which is located on one side of the display area 100. The non-display area 300 includes a heating control unit 400, which includes a first heating structure input pad 410, a first heating structure output pad 420, a second heating structure input pad 430, and a second heating structure output pad 440. The first heating input pad 410 is electrically connected to the first heating input bus 214, the first heating output pad 420 is electrically connected to the first heating output bus 215, the second heating input pad 430 is electrically connected to the second heating input bus 224, and the second heating output pad 440 is electrically connected to the second heating output bus 225.

[0097] For details, please refer to Figure 26 As shown, the display panel 10 also includes a non-display area 300, which may be a border area located on one side of the display area 100. This embodiment of the invention does not specifically limit the positional relationship between the display area 100 and the non-display area 300. The display area 100 is used to implement the display function of the display panel 10, and the non-display area 300 is used to house driving units, etc., to drive the display area 100 to implement the display function.

[0098] Furthermore, the non-display area 300 also includes a heating control unit 400. The heating control unit 400 provides heat to the display panel 10 through the first heating structure 210 and the second heating structure 220, ensuring stable operation of the display panel 10 in cold environments. Specifically, the heating control unit 400 includes a first heating structure input pad 410 electrically connected to a first heating input bus 214, a second heating structure input pad 430 electrically connected to a first heating output bus 215, a second heating input pad 430 electrically connected to a second heating input bus 224, and a second heating output pad 440 electrically connected to a second heating output bus 225.

[0099] Figure 27 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention, for reference. Figure 27 As shown, the display panel 10 includes an array substrate 500, a color filter substrate 600, and a liquid crystal layer 700 located between the array substrate 500 and the color filter substrate 600; a heating structure 200 is disposed in the array substrate 500 and / or the color filter substrate 700.

[0100] Specifically, the display panel 10 can be a liquid crystal display panel, and includes an array substrate 500, a liquid crystal layer 700, and a color filter substrate 600, wherein the liquid crystal layer 700 is located between the array substrate 500 and the color filter substrate 600. The liquid crystal in the liquid crystal layer 700 is driven to deflect by the array substrate 500, and combined with the color filter substrate 600, the display panel 10 achieves color display.

[0101] Both the array substrate 500 and the color filter substrate 600 may include multiple layers of film. The heating structure 200 may be disposed in the array substrate 500 or the color filter substrate 600, or different heating structures 200 may coexist in the array substrate 500 and the color filter substrate 600. This embodiment of the invention does not impose specific limitations on this. It can reduce the overall number of film layers in the display panel 10, thereby facilitating a thinner design of the display panel 10 while ensuring the heating effect.

[0102] Based on the same inventive concept, embodiments of the present invention also provide a display device. Figure 28 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention, such as... Figure 28 As shown, the display device 1 includes the display panel 10 described in any of the above embodiments. Therefore, the display device 1 provided in this embodiment of the invention possesses the corresponding beneficial effects described in the above embodiments, which will not be repeated here. For example, the display device 1 can be an electronic device such as a mobile phone, computer, smart wearable device (e.g., smartwatch), and in-vehicle display device, and this embodiment of the invention does not limit it.

[0103] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that, Including the display area; The display area includes a first display area and at least one second display area; The display panel further includes a heating structure located at least in the display area. The heating structure includes a first heating structure and a second heating structure. The first heating structure is located in the first display area and includes a first heating input terminal, a first heating trace, and a first heating output terminal. The first heating trace is connected to the first heating input terminal and the first heating output terminal, respectively. The second heating structure is located in the second display area and includes a second heating input terminal, a second heating trace, and a second heating output terminal. The second heating trace is connected to the second heating input terminal and the second heating output terminal, respectively. The length of the first heating trace is different from the length of the second heating trace; The display area further includes a sensor setting area; the second display area surrounds at least a portion of the sensor setting area; the second display area includes a plurality of display sub-areas, the plurality of display sub-areas including a first display sub-area and a second display sub-area, the first display sub-area and the second display sub-area being located on opposite sides of the sensor setting area; The second heating structure includes a first sub-heating structure located in the first display sub-area and a second sub-heating structure located in the second display sub-area. The first sub-heating structure includes a third heating input terminal, a third heating trace, and a third heating output terminal. The third heating trace is connected to the third heating input terminal and the third heating output terminal, respectively. The second sub-heating structure includes a fourth heating input terminal, a fourth heating trace, and a fourth heating output terminal. The fourth heating trace is connected to the fourth heating input terminal and the fourth heating output terminal, respectively. Alternatively, the second heating input terminal is located in the first display sub-area and is connected to the second heating trace located in the first display sub-area; the second heating output terminal is located in the second display sub-area and is connected to the second heating trace located in the second display sub-area; the second heating structure further includes a heating connection portion, which is connected to the second heating trace located in the first display sub-area and the second heating trace located in the second display sub-area, respectively.

2. The display panel according to claim 1, characterized in that, The voltage difference between the first heating input terminal and the first heating output terminal is the first voltage difference, and the voltage difference between the second heating input terminal and the second heating output terminal is the second voltage difference, wherein the first voltage difference and the second voltage difference are different.

3. The display panel according to claim 1, characterized in that, The third heating output terminal and the fourth heating output terminal are connected; Alternatively, the third heating input terminal and the fourth heating input terminal can be connected.

4. The display panel according to claim 1, characterized in that, The third heating output terminal and / or the fourth heating output terminal are connected to the first heating output terminal; Alternatively, the third heating input terminal and / or the fourth heating input terminal may be connected to the first heating input terminal.

5. The display panel according to claim 1, characterized in that, The line width of the heating connection is greater than the line width of the second heating trace; and / or, the sheet resistance of the heating connection is less than the sheet resistance of the second heating trace.

6. The display panel according to claim 1, characterized in that, The heating connection surrounds at least a portion of the sensor mounting area.

7. The display panel according to claim 6, characterized in that, The heating connection has a first point and a second point. The minimum distance between the first point and the sensor setting area is L1, and the minimum distance between the second point and the sensor setting area is L2. Where L1 = L2, and L1 and L2 are positive numbers.

8. The display panel according to claim 1, characterized in that, The first display sub-area includes a second A display area and a second B display area, wherein the second A display area is located in the second B display area near the center of the sensor setting area; The second heating structure includes n second heating input terminals and second heating traces located in the second A display area; the second heating structure includes m second heating input terminals and second heating output terminals located in the second B display area; Where m ≤ n, and m and n are positive integers.

9. The display panel according to claim 8, characterized in that, The heating connection part further includes a first heating connection part and a second heating connection part; The first heating connection portion is connected to n second heating traces respectively; the second heating connection portion is connected to m second heating traces respectively; The line width of the first heating connection part is w1, and the line width of the second heating connection part is w2, where w2≤w1, and w1 and w2 are positive integers.

10. The display panel according to claim 1, characterized in that, The first display area includes a first sub-pixel setting area and a first signal trace setting area, and the second display area includes a second sub-pixel setting area and a second signal trace setting area; The first heating trace is at least partially located in the first sub-pixel setting area, and the second heating trace is at least partially located in the second sub-pixel setting area; Alternatively, the first heating trace is at least partially located in the first signal trace setting area, and the second heating trace is at least partially located in the second signal trace setting area.

11. The display panel according to claim 10, characterized in that, The first heating structure further includes a first heating input bus and a first heating output bus, wherein the first heating input bus is connected to a plurality of first heating input terminals and the first heating output bus is connected to a plurality of first heating output terminals; The second heating structure further includes a second heating input bus and a second heating output bus. The second heating input bus is connected to a plurality of second heating input terminals, and the second heating output bus is connected to a plurality of second heating output terminals.

12. The display panel according to claim 11, characterized in that, The line widths of the first heating input bus and the first heating output bus are greater than the width of the first heating trace, and / or the sheet resistances of the first heating input bus and the first heating output bus are less than the sheet resistance of the first heating trace. The line widths of the second heating input bus and the second heating output bus are greater than the width of the second heating trace, and / or the sheet resistances of the second heating input bus and the second heating output bus are less than the sheet resistance of the second heating trace.

13. The display panel according to claim 11, characterized in that, The display panel also includes a non-display area located on one side of the display area; the non-display area includes a heating control unit, which includes a first heating structure input pad, a first heating structure output pad, a second heating structure input pad, and a second heating structure output pad; The first heating input pad is connected to the first heating input bus, the first heating output pad is connected to the first heating output bus, the second heating input pad is connected to the second heating input bus, and the second heating output pad is connected to the first heating output bus.

14. The display panel according to claim 1, characterized in that, The display panel includes an array substrate, a color filter substrate, and a liquid crystal layer located between the array substrate and the color filter substrate; The heating structure is disposed in the array substrate and / or the color filter substrate.

15. A display device, characterized in that, Includes the display panel as described in any one of claims 1-14.

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