Array substrate and liquid crystal display panel

Abstract

The application provides an array substrate and a liquid crystal display panel, which comprise a display area (AA) and a peripheral area (CC) surrounding the display area (AA), the display area (AA) is divided into a plurality of heating subareas (1), and a heating electrode (12) is arranged in each heating subarea (1); the array substrate further comprises a subarea temperature control module (3) and a heating wire module, the heating wire module comprises a plurality of heating wire groups arranged in pairs, each heating wire group is arranged in correspondence with each heating subarea (1), and the first end of each heating wire group is electrically connected with the subarea temperature control module; the subarea temperature control module (3) is located in the peripheral area (CC), and the subarea temperature control module can control each heating wire group to input a heating signal to the corresponding heating subarea (1). The application can solve the problem that heat compensation cannot be performed in the extension direction of the heating wire in the prior art, and can selectively heat in a low-temperature environment without increasing the heating power of all the heating wires, so as to avoid that the temperature of the central area is too high and the overall power consumption is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to an array substrate and a liquid crystal display panel. BACKGROUND

[0002] The liquid crystal display panel has been widely applied due to its excellent characteristics such as high brightness, high contrast ratio and low cost. In order to meet the requirements of special environment, the liquid crystal display panel needs to work normally in low temperature environment. Normally, the viscosity coefficient of liquid crystal is obviously affected by temperature, and the viscosity coefficient of liquid crystal is large in low temperature environment, so that the response time is too long, which causes the display picture to appear trailing phenomenon. In order to solve this problem, heating wires are uniformly arranged in the display area of the liquid crystal display panel, and the heat generated by the heating wires is used to heat the display area. However, due to the different heat transfer and dissipation at different positions of the liquid crystal display panel, the temperature distribution of the whole display area is uneven, and the temperature of the central area of the display area is high, while the temperature of the peripheral area of the display area is low. The uneven temperature distribution will cause the difference in response time of liquid crystal in different areas, thereby affecting the display effect.

[0003] In order to solve the above problems, the prior art compensates for the difference in heat dissipation of different areas of the display area by loading different heating signals (i.e. different voltages) to different heating wires to make the heat generated by the heating wires different. However, this compensation method can only control different heating wires respectively, and the heat power of different positions of a single heating wire is consistent, which leads to the fact that the different areas of the display area in the extension direction of the heating wire cannot be controlled, and thus the heat compensation in the extension direction cannot be performed, which has certain limitations for the uniformization control of temperature. In addition, for low temperature environment, although the heating power of all heating wires can be increased to avoid the temperature of the peripheral area of the display area being too low, this will easily cause the temperature of the central area of the display area to be too high, and increasing the temperature of all heating wires will also increase the overall power consumption. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art, and provides an array substrate and a liquid crystal display panel, which can solve the problem that the heat compensation in the extension direction of the heating wire cannot be performed in the prior art, and the temperature distribution of the display area is still uneven, and in the low temperature environment, the heating power of all heating wires does not need to be increased, so that the problem of the temperature of the central area being too high and the overall power consumption being increased can be avoided.

[0005] To achieve the above-mentioned purpose, the array substrate provided by the embodiments of the present application comprises a display area and a peripheral area surrounding the display area, the display area is divided into a plurality of heating sub-areas, and a heating electrode is arranged in each heating sub-area.

[0006] The array substrate further comprises a partition temperature control module and a heating line module, the heating line module comprises a plurality of heating line groups, each of the heating line groups is arranged corresponding to each of the heating partitions, and a first end of each of the heating line groups is electrically connected with the partition temperature control module;

[0007] The partition temperature control module is located in the peripheral area, and the partition temperature control module can control each of the heating line groups to input a heating signal into the corresponding heating partition.

[0008] Optionally, the plurality of heating line groups are arranged in parallel along a first direction, and the average length between adjacent heating line groups is different.

[0009] Optionally, the heating line group comprises a first heating line and a second heating line, any one of the first heating line and the second heating line is electrically connected with a signal input end of the partition temperature control module, and the other one is electrically connected with a signal output end of the partition temperature control module.

[0010] Optionally, the first heating line and the second heating line are electrically connected with edge positions on both sides of the heating electrode in the corresponding heating partition.

[0011] Optionally, the display area comprises M×N arrayed heating partitions, each of the heating partitions comprises m×n arrayed sub-pixels, wherein M, N, m and n are positive integers;

[0012] The first end of each of the heating line groups extends from a first side of the display area and is electrically connected with the partition temperature control module; the first side is the closest side of the display area to the partition temperature control module;

[0013] The second end of each of the heating line groups extends into the corresponding heating partition along the first direction from the first side, and each of the heating line groups corresponding to each row of the heating partitions arranged along the first direction is staggered in a second direction, and the second direction is perpendicular to the first direction.

[0014] Optionally, the heating line in each of the heating line groups is located in a first pixel interval, and the first pixel interval is an interval between any two adjacent rows of sub-pixels arranged along the second direction;

[0015] For each row of the heating partitions arranged along the second direction, the first pixel interval in which one of the heating line groups corresponding to one of the adjacent two heating partitions is located is adjacent to the first pixel interval in which one of the heating line groups corresponding to the other one of the adjacent two heating partitions is located.

[0016] Optionally, the heating line group corresponding to the heating partition adjacent to the first side edge in each row of the heating partitions arranged along the first direction comprises a third heating line and a fourth heating line, the third heating line and the fourth heating line are respectively located in two first pixel intervals adjacent to the edge of the heating partition, and are electrically connected to the edge position on both sides of the heating electrode corresponding to the heating partition through a via hole.

[0017] Optionally, each heating line group corresponding to each heating partition not adjacent to the first side edge in each row of the heating partitions arranged along the second direction comprises a fifth heating line and a sixth heating line, the fifth heating line and the sixth heating line are respectively extended to two first pixel intervals adjacent to the edge of the heating partition through a connection line structure, and are electrically connected to the edge position on both sides of the heating electrode corresponding to the heating partition through a via hole.

[0018] Optionally, the connection line structure comprises a main connection line and an auxiliary connection line, wherein the main connection line is parallel to the first direction; the auxiliary connection line intersects one of the fifth heating line and the sixth heating line.

[0019] The first pixel intervals in which the fifth heating line and the sixth heating line are located are first intervals, the first pixel intervals adjacent to the edge of the heating partition are second intervals, and the first pixel intervals between the first intervals and the second intervals are third intervals; one main connection line is arranged in each of the third intervals and the second intervals.

[0020] The auxiliary connection line is located in a second pixel interval, the second pixel interval is the interval between any two adjacent columns of sub-pixels arranged along the second direction, and at least one auxiliary connection line is connected between each two adjacent main connection lines, and at least one auxiliary connection line is connected between each of the fifth heating line and the sixth heating line and the main connection line adjacent thereto.

[0021] Optionally, the via hole is arranged in at least one second pixel interval in each heating partition, and the second pixel interval is the interval between any two adjacent columns of sub-pixels arranged along the second direction.

[0022] Optionally, the array substrate comprises a substrate, a thin film transistor and a passivation layer arranged on the substrate in sequence away from the substrate, and one thin film transistor is arranged corresponding to each sub-pixel.

[0023] Each heating electrode is arranged on the side of the passivation layer away from the substrate.

[0024] The array substrate further comprises an insulating layer, each of the heating wire groups is arranged on the substrate, and the insulating layer is arranged between a layer where each of the heating wire groups is arranged and a gate layer of the thin film transistor;

[0025] The array substrate further comprises a data line, the via is located on a side of the data line away from the thin film transistor, and is arranged between the heating electrode and the corresponding heating wire group and penetrates the passivation layer, a gate insulating layer of the thin film transistor and the insulating layer in sequence in a direction close to the substrate.

[0026] Optionally, a heating wire in each of the heating wire groups and a data line adjacent to the first pixel where the heating wire is arranged overlap in orthographic projection on the substrate; and a width of the heating wire in each of the heating wire groups is less than or equal to a width of the data line.

[0027] Optionally, a contour of orthographic projection of the heating electrode on a plane where the display area is located coincides with a contour of the heating sub-area.

[0028] Optionally, the array substrate further comprises a common electrode, the common electrode comprises a plurality of transparent metal oxide electrode blocks, and the transparent metal oxide electrode blocks are multiplexed as the heating electrode.

[0029] Optionally, each of the heating wire groups is arranged in the same layer as the common electrode.

[0030] Optionally, the array substrate further comprises a display driving module, the display driving module is configured to periodically input a driving signal to the plurality of transparent metal oxide electrode blocks, each cycle of the driving signal comprises a signal-on period and a signal-off period; the sub-area temperature control module inputs the heating signal to each of the transparent metal oxide electrode blocks in the signal-off period and stops inputting the heating signal to each of the transparent metal oxide electrode blocks in the signal-on period.

[0031] Optionally, the common electrode is further multiplexed as a touch electrode.

[0032] The array substrate further comprises a touch driving module and a display driving module, and a first end of each of the heating wire groups is electrically connected to the touch driving module and the display driving module respectively.

[0033] The display driving module is configured to periodically input driving signals to the plurality of transparent metal oxide electrode blocks, each cycle of the driving signals comprising a signal-on period and a signal-off period; the touch driving module is multiplexed as the partition temperature control module, and inputs a touch signal to each of the transparent metal oxide electrode blocks in the signal-off period, and simultaneously multiplexes the touch signal as the heating signal, independently controls the intensity and / or input time interval of the touch signal input to the transparent metal oxide electrode blocks in the corresponding heating partition, and stops inputting the touch signal to each of the transparent metal oxide electrode blocks in the signal-on period.

[0034] Optionally, the common electrode can also be multiplexed as a touch electrode.

[0035] The array substrate further comprises a touch driving module and a display driving module, and the first end of each of the heating wire groups is electrically connected to the touch driving module and the display driving module.

[0036] The display driving module is configured to periodically input driving signals to the plurality of transparent metal oxide electrode blocks, each cycle of the driving signals comprising a signal-on period and a signal-off period; the touch driving module is multiplexed as the partition temperature control module, and inputs a touch signal to each of the transparent metal oxide electrode blocks in a first sub-period of the signal-off period, inputs the heating signal to each of the transparent metal oxide electrode blocks in a second sub-period of the signal-off period, and stops inputting the touch signal and the heating signal to each of the transparent metal oxide electrode blocks in the signal-on period.

[0037] Optionally, the display driving module and the partition temperature control module are both located in the peripheral area, the partition temperature control module is adjacent to a first side of the display area, the display driving module is adjacent to a second side of the display area, and the first side intersects with the second side.

[0038] The first end of each of the heating wire groups extends from the first side and is electrically connected to the partition temperature control module.

[0039] Optionally, the display driving module and the touch driving module are integrated together and located in the peripheral area, and the integrated display driving module and touch driving module are adjacent to the second side of the display area.

[0040] The first end of each of the heating wire groups extends from the second side and is electrically connected to the integrated display driving module and touch driving module.

[0041] Optionally, the material of the heating wire in the heating wire group is a conductive metal.

[0042] Optionally, the conductive metal comprises any one or more of aluminum, copper and molybdenum.

[0043] As another technical solution, the application further provides a liquid crystal display panel comprising the array substrate provided by the application. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 A structural schematic diagram of the array substrate provided by the embodiment of the application;

[0045] Figure 2 A structural schematic diagram of three heating sub-zones arranged along the first direction in each row in the embodiment of the application;

[0046] Figure 3A A structural schematic diagram of a heating sub-zone adjacent to the first side edge in the embodiment of the application;

[0047] Figure 3B A top perspective view of a heating sub-zone adjacent to the first side edge in the embodiment of the application;

[0048] Figure 3C A structural schematic diagram of Figure 3B A partial enlarged schematic diagram of the I region in the embodiment of the application;

[0049] Figure 4A A structural schematic diagram of a heating sub-zone not adjacent to the first side edge in the embodiment of the application;

[0050] Figure 4B A top perspective view of a heating sub-zone not adjacent to the first side edge in the embodiment of the application;

[0051] Figure 5A A structural schematic diagram of another heating sub-zone not adjacent to the first side edge in the embodiment of the application;

[0052] Figure 5B A structural schematic diagram of another heating sub-zone not adjacent to the first side edge in the embodiment of the application;

[0053] Figure 6 A sectional schematic diagram along the II-II line in the embodiment of the application; Figure 3C A sectional schematic diagram along the II-II line in the embodiment of the application;

[0054] Figure 7 Another structural schematic diagram of the array substrate provided by the embodiment of the application;

[0055] Figure 8 A timing diagram of the Source signal and the Com signal in the embodiment of the application;

[0056] Figure 9 Another timing diagram of the Source signal and the Com signal in the embodiment of the application;

[0057] Figure 10 Another timing diagram of the Source signal and the Com signal in the embodiment of the present application. DETAILED DESCRIPTION

[0058] In order to make the objects, technical solutions and advantages of the present application clearer, the following will further describe the present application in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall into the scope of protection of the present application.

[0059] The shapes and sizes of various components in the drawings do not reflect true proportions, and the purpose is only to facilitate the understanding of the contents of the embodiments of the present application.

[0060] Unless otherwise defined, technical terms or scientific terms used in the present disclosure shall have the ordinary meaning understood by those skilled in the art to which the present disclosure pertains. The terms "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are used to distinguish different components. Similarly, the terms "one", "a", or "the" and similar terms do not denote a quantity restriction, but mean that at least one exists. The terms "include", "comprise", and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms do not mean a physical or mechanical connection, but can include an electrical connection, whether direct or indirect. The terms "up", "down", "left", "right", and the like only represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0061] The embodiments of the present disclosure are not limited to the embodiments shown in the drawings, but include modifications of configurations formed based on manufacturing processes. Therefore, the regions exemplified in the drawings have a schematic property, and the shapes of the regions shown in the drawings exemplify specific shapes of the regions of the elements, but are not intended to be restrictive.

[0062] Please refer to Figure 1 The embodiment of the present application provides an array substrate, which comprises a display area AA and a peripheral area C surrounding the display area AA, and the display area AA is divided into a plurality of heating sub-areas 1. The division manner of the heating sub-areas 1 can be various, for example, the plurality of heating sub-areas 1 are arranged in an array. Optionally, in order to improve the heating uniformity of the whole display area AA, the overall contour of the plurality of heating sub-areas 1 is the same as the contour of the display area AA (i.e., Figure 1The heating sub-pixels 1 in the display area AA are arranged in a matrix form, and the heating sub-pixels 1 in the display area AA are arranged in a plurality of heating partitions 1. The heating partitions 1 are substantially consistent with the dashed boxes in FIG. 1, and the interval between adjacent heating partitions 1 is as small as possible, for example, the distance between two adjacent sub-pixels.

[0063] A heating electrode is arranged in each heating partition 1. Optionally, the projection profile of the heating electrode on the plane of the display area AA coincides with the profile of the heating partition 1, that is, the heating electrode completely covers the heating partition 1. In this way, the plurality of heating electrodes can substantially cover the entire display area AA, thereby facilitating the improvement of the heating uniformity. Figure 1 The heating partitions 1 shown in FIG. 1 can also be represented as heating electrodes in the case that the heating electrodes completely cover the heating partitions 1. Of course, in actual applications, a certain interval can be provided between the projection profile of the heating electrode on the plane of the display area AA and the profile of the heating partition 1, that is, the heating electrode partially covers the heating partition 1, as long as the requirement for the heating uniformity is met.

[0064] The array substrate further comprises a partition temperature control module 3 and a heating line module. The heating line module comprises a plurality of heating line groups. Optionally, each heating line group comprises two heating lines 2, which are a first heating line and a second heating line, for example. Each heating line group is arranged in correspondence with each heating partition 1, and the first end (i.e., the left end of the heating line 2 in FIG. 1) of each heating line group is electrically connected to the partition temperature control module 3. Figure 1 The right end of the heating line 2 in FIG. 1 is electrically connected to the partition temperature control module 3.

[0065] The heating electrode plays a main heating role, and each heating line group plays an auxiliary heating role. In addition, each heating line group also plays a role of conveying a heating signal. Taking the example in which the heating line group comprises a first heating line and a second heating line, any one of the first heating line and the second heating line is electrically connected to the signal input end of the partition temperature control module 3, and the other one is electrically connected to the signal output end of the partition temperature control module 3. The heating line 2 electrically connected to the signal input end of the partition temperature control module 3 is used to input the heating signal output by the partition temperature control module 3 to the heating electrode in the corresponding heating partition 1, and the other heating line 2 electrically connected to the signal output end of the partition temperature control module 3 is used to output the heating signal in the heating electrode to the partition temperature control module 3, thereby forming a loop of the heating signal.

[0066] Optionally, taking the first heating wire and the second heating wire as an example, the first heating wire and the second heating wire are electrically connected to the edge positions on both sides of the heating electrode in the corresponding heating sub-area 1. In this way, the heating signal can pass through the entire heating electrode, i.e., from the edge position on one side of the heating electrode to the edge position on the other side, so that the display area AA can be heated uniformly, and the problem that the display area AA cannot be heated uniformly due to the fact that the heating electrode is not passed through by the current in some areas can be avoided. In addition, by using each heating wire group to serve as a heating signal transmission function, the heating effect of all the heating electrodes can be ensured to be the same under the condition that the same intensity of the heating signal is loaded to all the heating electrodes, so that the accuracy of temperature compensation can be ensured when the temperature difference between different heating sub-areas 1 needs to be compensated.

[0067] The partition temperature control module 3 can control each heating wire group to input a heating signal to the corresponding heating sub-area. Specifically, the partition temperature control module 3 is configured to independently control the intensity and / or input time interval of the heating signal input to the heating electrode in the corresponding heating sub-area 1 through each heating wire group, i.e., to realize independent control of each heating electrode, so that the intensity and / or input time interval of the heating signal of the heating electrode in the corresponding heating sub-area 1 can be controlled according to the temperature difference between the heating sub-areas 1, so as to compensate for the temperature difference between the heating sub-areas 1, thereby homogenizing the temperature of the entire display area AA, and improving the display uniformity. The partition temperature control module 3, for example, includes a flexible circuit board (FPC) 31 and a chip on film 32, and the flexible circuit board 31 is electrically connected to the first end of each heating wire group through the chip on film 32.

[0068] By making the heating electrode serve as the main heating function and each heating wire group serve as the auxiliary heating function, the heating method of the present application can, compared with the prior art, on the one hand, the plurality of heating electrodes can substantially cover the entire display area AA, thereby facilitating the improvement of the heating uniformity; on the other hand, the layout of the heating electrode can be adapted to the division manner of the heating sub-area 1, i.e., the partition control can be more flexible without being restricted by the layout of the heating wire, thereby avoiding the problem that the display area AA cannot be partitioned in the extension direction of the heating wire in the prior art, and the problem that the heat compensation cannot be performed in the extension direction, thereby realizing the homogenization control of the temperature of the entire display area AA. Further, for a low-temperature environment, the present application only needs to increase the intensity and / or input time interval of the heating signal of the heating electrode in the heating sub-area 1 located at the periphery of the display area AA to selectively increase the temperature of the peripheral region of the display area AA, i.e., selective heating without increasing the power of all the heating wires in the prior art, thereby avoiding the problem that the temperature of the peripheral region of the display area AA is too low, and the problem that the temperature of the central region of the display area AA is too high, and further avoiding the problem of increased overall power consumption.

[0069] In some optional embodiments, taking the outline shape of the display area AA as a rectangle or a square as an example, the plurality of heating sub-zones 1 are arranged in an array in the display area AA, i.e., arranged in an array in the first direction (i.e., the Y direction in Figure 1 Figure 1

[0070] In some optional embodiments, the display area AA includes M×N heating sub-zones 1 arranged in an array, and each heating sub-zone 1 includes m×n sub-pixels arranged in an array, where M, N, m, and n are all positive integers. The first end of each heating line group extends from the first side edge 1a of the display area AA and is electrically connected to the sub-zone temperature control module 3. The first side edge 1a is the side edge of the display area AA closest to the sub-zone temperature control module 3, i.e., the side edge adjacent to the sub-zone temperature control module 3. The second end (i.e., the left end of the heating line group in Figure 1 Figure 1 Figure 2 Figure 1 ​​​​​In the case of leftward extension in the first direction (i.e., the Y direction), each heating line group needs to pass through the corresponding heating section 1 in the row, which requires that the heating line groups corresponding to the heating sections 1 in the row be staggered in the second direction to ensure that the heating line groups do not overlap with other heating line groups when passing through the corresponding heating section 1. For example, as shown in FIG. 11, for each row of heating sections 1 arranged in the first direction (i.e., the Y direction), the heating section 11a is adjacent to the first side 1a, and the remaining heating sections 11b and 11c are not adjacent to the first side 1a. Figure 2 As shown in FIG. 11, for each row of heating sections 1 arranged in the first direction (i.e., the Y direction), the heating section 11a is adjacent to the first side 1a, and the remaining heating sections 11b and 11c are not adjacent to the first side 1a. Figure 2 As shown in FIG. 11, for each row of heating sections 1 arranged in the first direction (i.e., the Y direction), the heating section 11a is adjacent to the first side 1a, and the remaining heating sections 11b and 11c are not adjacent to the first side 1a.

[0071] In some alternative embodiments, in each row of heating sections 1 arranged in the first direction (i.e., the Y direction), the distance between the two heating lines 2 in the heating line group corresponding to the heating section 1 farther from the first side 1a is smaller. That is, the farther from the first side 1a, the closer the two heating lines 2 in each heating line group are to each other. This arrangement is to ensure that the area between each heating line 2 in each heating line group and the edge position of the heating section 1 in which the heating line 2 is located is not crossed by the heating lines 2 in the heating line groups corresponding to other heating sections 1, and the heating lines 2 in the heating line groups corresponding to other heating sections 1 only pass through the area between the two heating lines 2 in the heating line group corresponding to the heating section 1, so that the area between each heating line 2 and the edge position of the heating section 1 in which the heating line 2 is located can be used as a reserved space to layout the electrode connection structure (described in detail below) for electrically connecting the heating line group and the heating electrode, avoiding interference between the electrode connection structure and the passing heating line group corresponding to other heating sections 1. For example, as shown in FIG. 11, for each row of heating sections 1 arranged in the first direction (i.e., the Y direction), the distance between the two heating lines 2 in the heating line group corresponding to the heating section 11a adjacent to the first side 1a is the largest, the distance between the two heating lines 2 in the heating line group corresponding to the heating section 11c is the smallest, and the distance between the two heating lines 2 in the heating line group corresponding to the heating section 11b is intermediate. Figure 2 As shown in FIG. 11, for each row of heating sections 1 arranged in the first direction (i.e., the Y direction), the distance between the two heating lines 2 in the heating line group corresponding to the heating section 11a adjacent to the first side 1a is the largest, the distance between the two heating lines 2 in the heating line group corresponding to the heating section 11c is the smallest, and the distance between the two heating lines 2 in the heating line group corresponding to the heating section 11b is intermediate. Figure 1 The electrode connection structure described above is not shown in FIG. 10.

[0072] In some alternative embodiments, as shown in FIG. 12, the electrode connection structure described above is not shown in FIG. 10. Figure 2As shown, the heating wires 2 in each heating wire group are located in the first pixel interval 1b, which is the interval between any two adjacent rows or columns of display areas AA along the first direction (i.e., the Y direction) of the sub-pixels (e.g., sub-pixels R, G, and B); and for each row of heating sub-areas 1 along the second direction (i.e., the X direction), the first pixel interval 1b where one heating wire group corresponding to one of the adjacent two heating sub-areas 1 is located is adjacent to the first pixel interval 1b where one heating wire group corresponding to the other heating sub-area 1 is located. Specifically, for each of the adjacent two heating sub-areas 1 in the same row, the first heating wire in the heating wire group corresponding to one of the heating sub-areas 1 and the first heating wire in the heating wire group corresponding to the other heating sub-area 1 are located in the adjacent two first pixel intervals 1b, respectively, the second heating wire in the heating wire group corresponding to one of the heating sub-areas 1 and the second heating wire in the heating wire group corresponding to the other heating sub-area 1 are located in the adjacent two first pixel intervals 1b, respectively, for example, if the first heating wire in the heating wire group corresponding to one of the heating sub-areas 1 is located in the first pixel interval 1b closest to the edge of the heating sub-area in the second direction, the first heating wire in the heating wire group corresponding to the other heating sub-area 1 is located in the second first pixel interval 1b closest to the edge of the heating sub-area in the second direction. As shown in FIG. 1, the heating wire group corresponding to the heating sub-area 11a is located in the first pixel interval 1b closest to the edge of the heating sub-area in the second direction, and the heating wire group corresponding to the heating sub-area 11b adjacent to the heating sub-area 11a is located in the second first pixel interval 1b closest to the edge of the heating sub-area in the second direction. In other words, the distance between the first heating wires in the heating wire groups corresponding to the adjacent heating sub-areas 1 in the same row is one sub-pixel; the distance between the second heating wires in the heating wire groups corresponding to the adjacent heating sub-areas 1 in the same row is one sub-pixel. Figure 2 As shown, the heating wires 2 in each heating wire group are located in the first pixel interval 1b, which is the interval between any two adjacent rows or columns of display areas AA along the first direction (i.e., the Y direction) of the sub-pixels (e.g., sub-pixels R, G, and B); and for each row of heating sub-areas 1 along the second direction (i.e., the X direction), the first pixel interval 1b where one heating wire group corresponding to one of the adjacent two heating sub-areas 1 is located is adjacent to the first pixel interval 1b where one heating wire group corresponding to the other heating sub-area 1 is located. Specifically, for each of the adjacent two heating sub-areas 1 in the same row, the first heating wire in the heating wire group corresponding to one of the heating sub-areas 1 and the first heating wire in the heating wire group corresponding to the other heating sub-area 1 are located in the adjacent two first pixel intervals 1b, respectively, the second heating wire in the heating wire group corresponding to one of the heating sub-areas 1 and the second heating wire in the heating wire group corresponding to the other heating sub-area 1 are located in the adjacent two first pixel intervals 1b, respectively, for example, if the first heating wire in the heating wire group corresponding to one of the heating sub-areas 1 is located in the first pixel interval 1b closest to the edge of the heating sub-area in the second direction, the first heating wire in the heating wire group corresponding to the other heating sub-area 1 is located in the second first pixel interval 1b closest to the edge of the heating sub-area in the second direction. As shown in FIG. 1, the heating wire group corresponding to the heating sub-area 11a is located in the first pixel interval 1b closest to the edge of the heating sub-area in the second direction, and the heating wire group corresponding to the heating sub-area 11b adjacent to the heating sub-area 11a is located in the second first pixel interval 1b closest to the edge of the heating sub-area in the second direction. In other words, the distance between the first heating wires in the heating wire groups corresponding to the adjacent heating sub-areas 1 in the same row is one sub-pixel; the distance between the second heating wires in the heating wire groups corresponding to the adjacent heating sub-areas 1 in the same row is one sub-pixel.

[0073] In this way, the number of heating wire groups distributed in the heating sub-areas 1 in the same row can be maximized under the premise of normal display. It can be easily understood that the more the number of heating wire groups, the more the number of heating sub-areas 1 in the same row, and the more the number of sub-areas, the higher the flexibility and accuracy of sub-area temperature control, thereby facilitating further improvement of temperature uniformity of the display area AA. Optionally, as shown in FIG. 2, the heating wire group corresponding to the heating sub-area 11a is located in the first pixel interval 1b closest to the edge of the heating sub-area in the second direction, and the heating wire group corresponding to the heating sub-area 11b adjacent to the heating sub-area 11a is located in the second first pixel interval 1b closest to the edge of the heating sub-area in the second direction. In other words, the distance between the first heating wires in the heating wire groups corresponding to the adjacent heating sub-areas 1 in the same row is one sub-pixel; the distance between the second heating wires in the heating wire groups corresponding to the adjacent heating sub-areas 1 in the same row is one sub-pixel. Figure 2As shown, all the first pixel intervals 1b closest to the first side edge 1a in the heating sub-area 11a are provided with the heating lines 2, wherein two heating lines 2 in the heating line group corresponding to the heating sub-area 11a are respectively located in two first pixel intervals 1b adjacent to the edge of the heating sub-area 1, and the remaining first pixel intervals are used for the heating line group corresponding to other heating sub-areas except the heating sub-area 11a to pass through. In this way, under the premise that only one heating line can be arranged in each first pixel interval, the number of heating line groups in the same row of heating sub-areas 1 reaches the maximum, that is, the number of corresponding same row of heating sub-areas 1 is also the largest. It can be seen that the maximum number of the same row of heating sub-areas 1 depends on the resolution of the display panel.

[0074] Of course, in actual application, the number of heating line groups arranged in the same row of heating sub-areas 1 can also be set according to actual needs, for example, it can be less than the maximum value described above, in which case there are at least a pair of adjacent heating sub-areas 1 in the same row, wherein the first heating line in the heating line group corresponding to one of the heating sub-areas 1 and the first heating line in the heating line group corresponding to the other heating sub-area 1 are respectively located in two non-adjacent first pixel intervals, and the second heating line in the heating line group corresponding to one of the heating sub-areas 1 and the second heating line in the heating line group corresponding to the other heating sub-area 1 are respectively located in two non-adjacent first pixel intervals. The number of heating sub-areas 1 in the same row can be freely set according to actual needs, and the embodiments of the present application do not have special limitations thereon.

[0075] In some optional embodiments, as Figure 2 , Figures 3A to 3C , and Figure 6As shown, one heating line group corresponding to the heating partition 11a adjacent to the first side edge la in the heating partition 1 arranged along the first direction (i.e., the Y direction) of each row includes two heating lines 2, which are a third heating line and a fourth heating line, respectively, and are located in two first pixel intervals lb adjacent to the edges of the heating partition 11a and are electrically connected through the via hole 21 and the edge positions on both sides of the heating electrode corresponding to the heating partition 11a. Specifically, the heating electrode is arranged in a layer different from the heating line group. The first pixel interval lb in which the two heating lines 2 in the heating line group corresponding to the heating partition 11a adjacent to the first side edge la is closest to the two side edges of the heating partition 11a in the second direction (i.e., the X direction) relative to other first pixel intervals, in which case the heating line group corresponding to the heating partition 11a adjacent to the first side edge la can be directly electrically connected to the heating electrode through the via hole 21, and the connection position is the edge position on both sides of the heating electrode (the position corresponding to the first pixel interval lb closest to the two side edges of the heating partition 11a), so that the heating signal can pass through the entire heating electrode, i.e., flow from the edge position on one side of the heating electrode to the edge position on the other side in the X direction, thereby avoiding the display area AA corresponding to the local area not being heated due to the local non-passing of current in the heating electrode, and further improving the heating uniformity. Specifically, a connection portion 22 corresponding to the via hole 21 is arranged on one side of the heating line 2 to realize the electrical connection between the via hole 21 and the heating line 2.

[0076] In some optional embodiments, as shown in Figure 2 , Figures 4A to 6 As shown, each heating line group corresponding to each heating partition (e.g., the heating partition 11b shown in Figure 4A and Figure 4B , and the heating partition 11c shown in Figure 5A and Figure 5B ) not adjacent to the first side edge la in the heating partition 1 arranged along the first direction of each row includes two heating lines 2, which are a fifth heating line and a sixth heating line, respectively, and extend to two first pixel intervals (i.e., the second intervals lb2 shown in Figure 4A and Figure 5A ) adjacent to the edges of the heating partition 1 through the connection line structure, and are electrically connected through the via hole 21 and the edge positions on both sides of the heating electrode corresponding to the heating partition 1. Specifically, each heating line group corresponding to each heating partition (e.g., the heating partition 11b shown in Figure 4A and Figure 4B , and the heating partition 11c shown in Figure 5A and Figure 5B ) not adjacent to the first side edge la, the first pixel interval (i.e., the second interval lb2 shown in Figure 4A and Figure 5AThe first interval 1b1 shown in FIG. 1 is not adjacent to the edges of the heating partition in the second direction, in this case, the heating wire group cannot be directly connected to the heating electrode through the via hole 21, otherwise the connection position cannot be located at the edge position on both sides of the heating electrode, for this, the heating wire 2 needs to be introduced into the first pixel interval adjacent to the edge of the heating partition (for example Figure 4A and Figure 5A The edge of the heating partition 11b, 11c shown in FIG. 1 is adjacent to the first pixel interval (i.e., Figure 4A and Figure 5A The second interval 1b2 shown in FIG. 1, and then connected through the via hole 21 and the edge position on both sides of the heating electrode corresponding to the heating partition. By introducing the heating wire 2 into the first pixel interval adjacent to the edge of the heating partition, it means that the current in the heating wire 2 can flow into the first pixel interval adjacent to the edge of the heating partition 1 through the above-mentioned connection line structure. The connection line structure is electrically connected to the edge position of the corresponding heating electrode through the via hole 21, and the heating wire 2 is electrically connected to the connection line structure, so as to be indirectly electrically connected to the edge position of the heating electrode. In this way, the heating signal can also pass through the entire heating electrode.

[0077] The connection line structure for realizing the above-mentioned function is not particularly limited in the embodiment of the present application, in some optional embodiments, as shown in Figures 4A to 5B The connection line structure includes a main connection line 51 and an auxiliary connection line 52, wherein the main connection line 51 is parallel to each other in the first direction; the auxiliary connection line 52 intersects with the heating wire (i.e. one of the fifth heating wire and the sixth heating wire mentioned above); preferably perpendicular to each other; the first pixel interval (not adjacent to the edge of the heating partition) where the two heating wires 2, i.e. the fifth heating wire and the sixth heating wire mentioned above, are located is the first interval 1b1, and the first pixel interval adjacent to the edge of the heating partition is the second interval 1b2, as shown in Figure 5AAs shown, the first pixel interval between the first interval 1b1 and the second interval 1b2 is the third interval 1b3; each third interval 1b3 and the second interval 1b2 are provided with a main connection line 51, that is, each of all the first pixel intervals located on the side of the heating line group close to the edge of the heating sub-area is provided with a main connection line 51, and the main connection line 51 is only located in the heating sub-area where it is located and does not extend to other heating sub-areas. The auxiliary connection line 52 is located in the second pixel interval 1c, which is the interval between any two adjacent columns of sub-pixels arranged in the second direction (i.e., the X direction), and at least one auxiliary connection line 52 is connected between each two adjacent main connection lines 51, and at least one auxiliary connection line 52 is connected between each heating line 2 in the heating line group, i.e., each of the fifth heating line and the sixth heating line, and the adjacent main connection line 51. With the help of the auxiliary connection line 52, the electrical conduction between the main connection lines 51 and the electrical conduction between the heating line group and the main connection line 51 can be realized, so that each heating line 2 in the heating line group, i.e., each of the fifth heating line and the sixth heating line, can be led to the second interval 1b2 described above, and the main connection line 51 in the second interval 1b2 is electrically connected through the via hole 21 and the edge position on both sides of the heating electrode corresponding to the heating sub-area.

[0078] Since the above-mentioned main connection line 51 can also play the role of auxiliary heating, by arranging each of all the first pixel intervals located on the side of the heating line group close to the edge of the heating sub-area with a main connection line 51, the heating effect of the heating sub-area where it is located is basically equivalent to the heating effect of the heating sub-area closest to the first side edge 1a (i.e., the heating sub-area 11a in Figure 2 , all the first pixel intervals have a heating line group), and the influence of the auxiliary connection line 52 can be ignored, under the condition that the same intensity of heating signal is loaded to all the heating electrodes, the identity of the heating effect between the heating sub-areas can be further improved, so that when the temperature difference of different heating sub-areas needs to be compensated, the accuracy of temperature compensation can be ensured.

[0079] In some optional embodiments, at least one second pixel interval (i.e., the second pixel interval 1c in the above-mentioned Figure 5A ) in each heating sub-area is provided with a via hole 21, and the second pixel interval 1c is the interval between any two adjacent columns of sub-pixels arranged in the second direction. In this way, the setting of the via hole 21 can avoid affecting the light transmittance and light efficiency of the display area AA. Optionally, one via hole 21 can be arranged on one side of each sub-pixel R, and one via hole 21 can be arranged on one side of each sub-pixel B, for example, as shown in Figure 3A , Figure 4A and Figure 5AAs shown, a via 21 can be set to the left of each sub-pixel R, and a via 21 can be set to the right of each sub-pixel B; or, as shown... Figure 3B , Figure 4B and Figure 5B As shown, a via 21 can also be set to the left of each sub-pixel R and to the left of each sub-pixel B. This embodiment of the invention does not have any particular restrictions on this, as long as the setting of the via 21 does not affect the light transmittance and light effect of the display area AA.

[0080] In some alternative embodiments, such as Figure 3C and Figure 6 As shown, the array substrate includes a substrate 13 and thin-film transistors 23 and passivation layers 15 disposed on the substrate 13 and sequentially disposed in a direction away from the substrate 13. Each sub-pixel is provided with a corresponding thin-film transistor 23. Each heating electrode 12 is disposed on the side of the passivation layer 15 away from the substrate 13. Furthermore, the array substrate also includes an insulating layer 14. Each heating line group (heating line 2 in the group) is disposed on the substrate 13, and the insulating layer 14 is disposed between the layer where each heating line group is located and the gate layer 231. The array substrate also includes a data line 24. A via 21 is located on the side of the data line 24 away from the thin-film transistor 23 and is disposed between the heating electrode 12 and the corresponding heating line group (heating line 2 in the group). The via 21 passes through the passivation layer 15, the gate insulating layer 232 of the thin-film transistor 23, and the insulating layer 14 sequentially in a direction close to the substrate 13.

[0081] In some alternative embodiments, such as Figure 3C and Figure 6 As shown, the orthographic projections of the heating line 2 in each heating line group and the data line 24 adjacent to it at the first pixel interval overlap on the substrate 13; and the width of the heating line 2 in each heating line group is less than or equal to the width of the data line 24. This avoids the heating line 2 affecting the light transmittance of the display area AA. At the same time, by making the width of the heating line 2 in each heating line group less than or equal to the width of the data line 24, the negative impact of the electric field generated by the heating line 2 and the opposite data line 24 can be reduced, thereby ensuring the display effect.

[0082] In some optional embodiments, the heating electrode can be an additional electrode provided on the basis of the existing array substrate structure. Preferably, the heating electrode is a transparent metal oxide electrode block, such as ITO. The heating wire material in the heating wire assembly is a conductive metal, such as any one or more of aluminum, copper, and molybdenum. Due to the sheet resistance of conductive metals (e.g., aluminum is about 0.15 Ω / μm), 2 Molybdenum has an Ω / μm of approximately 0.38. 2) is generally much smaller than the sheet resistance of the transparent metal oxide electrode block (ITO is about 27 Ω / μm 2 ), which makes the resistance of the transparent metal oxide electrode block much larger than that of the conductive metal. According to the power formula P = IR 2 , it can be known that the larger the resistance R is, the greater the heat power is, and therefore, the generated heat is mainly concentrated in the transparent metal oxide electrode block, i.e., the transparent metal oxide electrode block plays a major heating role, and the conductive metal plays an auxiliary heating role. In this way, under the condition that the same intensity of heating signal is loaded to all the transparent metal oxide electrode blocks, the heating effect uniformity of all the transparent metal oxide electrode blocks can be ensured, and therefore, the accuracy of temperature compensation can be ensured when the temperature difference of different heating sub-zones needs to be compensated. Of course, in actual applications, the material of the heating wire can also be a transparent metal oxide such as ITO, etc. In addition, the materials of the main connection wire 51 and the auxiliary connection wire 52 can also be a conductive metal or a transparent metal oxide such as ITO, etc.

[0083] In some other optional embodiments, the electrodes in the existing array substrate can also be multiplexed as heating electrodes. For example, the array substrate further includes a common electrode, and the common electrode includes a plurality of transparent metal oxide electrode blocks which can be multiplexed as the heating electrodes. The common electrode has both display and heating functions. Since the common electrode adopts transparent metal oxide electrode blocks, the generated heat can be mainly concentrated in the transparent metal oxide electrode blocks, and therefore, under the condition that the same intensity of heating signal is loaded to all the transparent metal oxide electrode blocks, the heating effect uniformity of all the transparent metal oxide electrode blocks can be ensured. Optionally, as shown in Figure 6 , the heating electrode 12 also serves as a common electrode, and the heating electrode 12 is arranged in a layer different from the heating wire group, and in this case, the heating electrode 12 is electrically connected with each heating wire 2 through the via 21. However, the embodiments of the present application are not limited thereto, and in actual applications, each heating wire group can also be arranged in the same layer as the common electrode (multiplexed as a heating electrode), and no via is needed.

[0084] In order to ensure that the above two functions (i.e., display and heating) of the common electrode can be normally performed, the following three different ways can be adopted to input the heating signal and the driving signal for display into the common electrode. The first way is as shown in Figure 1As shown, the array substrate also includes a display driving module 4, which includes, for example, a flexible printed circuit board (FPC) 41 for controlling the display and an integrated circuit 43. The flexible printed circuit board 41 is electrically connected to the integrated circuit 43, for example, via a signal transmission pin (FPC Pin) 42. Optionally, both the display driving module 4 and the zone temperature control module 3 are located in the peripheral area C, with the zone temperature control module 3 adjacent to the first side 1a of the display area AA, and the display driving module 4 adjacent to the second side 1b of the display area AA. The first side 1a and the second side 1b intersect. The first end of each heating wire group extends from the first side 1a and is electrically connected to the zone temperature control module 3. Figure 8 As shown, the display driving module 4 is used to periodically input a driving signal (Source) to multiple transparent metal oxide electrode blocks. Each cycle of the driving signal includes a signal on-time period (i.e., Figure 8 The temperature control module 3 inputs a heating signal (Com) to each transparent metal oxide electrode block during the signal off period and stops inputting the heating signal to each transparent metal oxide electrode block during the signal on period. Each cycle of the aforementioned driving signal is, for example, the duration of one frame of the display image, which is divided into two periods, one period for display and at least a portion of the other period for heating. In this case, the temperature control module 3 can be used to control the duration of the heating signal during the signal off period of each cycle (i.e., Figure 8 The temperature of the corresponding heating zone 1 is controlled by the length of the time interval corresponding to the Com signal (corresponding to the heating time).

[0085] The second approach involves reusing the common electrode as a touch electrode, which combines display, touch, and heating functions. The array substrate also includes a touch driving module and a display driving module. In this case, such as... Figure 7As shown, there is no need to set up a separate zone temperature control module. Optionally, the display driver module and the touch driver module are integrated together and located in the peripheral area C. The integrated display driver module and touch driver module are adjacent to the second side 1b of the display area AA. The first end of each heating wire group extends from the second side 1b and is electrically connected to the integrated display driver module and touch driver module. Specifically, the integrated display driver module and touch driver module include a flexible printed circuit board (FPC) 41' and an integrated circuit 43. The side of the display area AA where it is located is the aforementioned second side 1b, for example, the second side 1b is parallel to the Y direction. The first end of each heating wire group is electrically connected to the touch driver module and the display driver module respectively. That is, of the two heating wires in each heating wire group, the first end of one heating wire is electrically connected to the touch driver module, and the first end of the other heating wire is electrically connected to the display driver module. In this configuration, the flexible printed circuit board (FPC) 41' and integrated circuit 43 possess TDDI (Touch and Display Driver Integration) functionality, integrating the aforementioned touch driver module and display driver module. Since the frequency and intensity of the touch signal output by the touch driver module are adjustable, and by electrically connecting the first end of one heating wire to the touch driver module and the first end of the other heating wire to the display driver module, a heating signal loop can be formed, allowing the touch driver module to function as the aforementioned zoned temperature control module. Specifically, as... Figure 9 As shown, the display driving module is used to periodically input driving signals (Source) to multiple transparent metal oxide electrode blocks. Each cycle of the driving signal includes a signal on-time period (i.e., Figure 9 The above-mentioned touch driving module is multiplexed as a zone temperature control module. During the signal off period, it inputs a touch signal (Com) to each transparent metal oxide electrode block and uses the touch signal as a heating signal simultaneously. It independently controls the intensity and / or input time interval of the touch signal input to the transparent metal oxide electrode blocks in the corresponding heating zone. During the signal on period, it stops inputting touch signals to each transparent metal oxide electrode block. Each cycle of the above-mentioned driving signal is, for example, the duration of one frame of display. This duration is divided into two periods, one of which is used for display, and at least a portion of the duration of the other period is used for touch and heating simultaneously. In this case, the touch driving module, as a zone temperature control module, can be used to control the duration occupied by the touch signal (which is also the heating signal) in the signal off period of each cycle (i.e., Figure 9 The temperature of the corresponding heating zone is controlled by the length of the time interval corresponding to the Com signal (heating time + touch time).

[0086] For situations where the uniformity of the surface temperature of the LCD panel is highly required, in order to meet the requirements of touch recognition, the intensity of the touch signal and the duration in each cycle of the driving signal (the duration of one frame of display) must be equal. In this case, since the temperature of the heating zone cannot be adjusted by changing the heating duration, the touch signal cannot be used as a heating signal at the same time. A third method can be adopted in this case, that is, the common electrode can also be reused as a touch electrode, that is, the common electrode has three functions: display, touch and heating. The array substrate also includes a touch driver module and a display driver module. Similar to the second method described above, the integrated display driver module and touch driver module include a flexible printed circuit board (FPC) 41' and an integrated circuit 43, which has TDDI (Touch and Display Driver Integration) functionality. The first end of each heating wire group is electrically connected to the touch driver module and the display driver module, respectively. That is, of the two heating wires in each heating wire group, the first end of one heating wire is electrically connected to the touch driver module, and the first end of the other heating wire is electrically connected to the display driver module, which can form a circuit for the heating signal, thereby allowing the touch driver module to be used as the aforementioned zoned temperature control module. Specifically, as shown... Figure 10 As shown, the display driving module is used to periodically input driving signals (Source) to multiple transparent metal oxide electrode blocks. Each cycle of the driving signal includes a signal on-time period (i.e., Figure 10 The source signal corresponds to the display time period and the signal off period; the touch driver module is used as a zone temperature control module, and in the first sub-period of the signal off period (i.e., Figure 10 During the second sub-period of the signal off period (i.e., the time period corresponding to the touch time of the Com signal), a touch signal (Com) is individually input to each transparent metal oxide electrode block. Figure 10 During the period corresponding to the heating time (the Com signal in the middle), a heating signal (Com) is input separately to each transparent metal oxide electrode block. During the signal activation period, the input of both the touch signal and the heating signal to each transparent metal oxide electrode block is stopped. In other words, although the touch driver module still functions as a zone temperature control module, the touch signal and the heating signal output by the touch driver module are not in the same time period and cannot be output simultaneously. This ensures that the duration of the touch signal output in the first sub-period is equal in each cycle of the driving signal (the duration of one display frame), and also allows control of the temperature of the corresponding heating zone by the duration occupied by the heating signal output in the second sub-period during the signal deactivation period in each cycle (i.e., the size of the second sub-period).

[0087] In summary, the array substrate provided by the embodiment of the present application has the heating electrodes playing a main heating role and each heating line group playing an auxiliary heating role. Compared with the heating wire in the prior art, on the one hand, the plurality of heating electrodes can substantially cover the entire display area AA, thereby facilitating the improvement of heating uniformity; on the other hand, the layout of the heating electrodes can be adapted to the division mode of the heating sub-area 1, that is, the partition control can be more flexible without being restricted by the wiring of the heating wire, thereby avoiding the problem that the different areas of the display area AA in the extension direction of the heating wire cannot be controlled in partitions in the prior art, and the heat compensation in the extension direction cannot be performed, and further, the uniformity control of the temperature of the entire display area AA can be realized. Further, for a low-temperature environment, the embodiment of the present application only needs to increase the intensity and / or input time interval of the heating signal of the heating electrode in the heating sub-area 1 located at the periphery of the display area AA to separately increase the temperature of the peripheral area of the display area AA, that is, selective heating without using the mode of increasing the power of all the heating wires in the prior art, thereby avoiding that the temperature of the peripheral area of the display area AA is too low and the temperature of the central area of the display area AA is too high, and further, the overall power consumption can be avoided.

[0088] Meanwhile, each heating line group also plays a role of conveying the heating signal, and by electrically connecting the two heating lines 2 in each heating line group to the edge positions on both sides of the heating electrode in the corresponding heating sub-area 1, the heating signal can pass through the entire heating electrode, thereby avoiding that the corresponding local area of the display area AA is not heated due to the local non-passing of the current of the heating electrode, and further, the heating uniformity can be improved. In addition, by using each heating line group to play a role of conveying the heating signal, under the condition that the same intensity of the heating signal is loaded to all the heating electrodes, the uniformity of the heating effect of all the heating electrodes can be ensured, thereby ensuring the accuracy of the temperature compensation when the temperature difference of different heating sub-areas 1 needs to be compensated.

[0089] As another technical solution, the embodiment of the present application further provides a liquid crystal display panel comprising the above-mentioned array substrate provided by the embodiment of the present application.

[0090] The liquid crystal display panel provided by the embodiment of the present application can avoid the problem that the different areas of the display area AA in the extension direction of the heating wire cannot be controlled in partitions in the prior art, and the heat compensation in the extension direction cannot be performed, and further, the uniformity control of the temperature of the entire display area AA can be realized.

[0091] It can be understood that the above embodiments are only exemplary embodiments for illustrating the principles of the present application, and the present application is not limited thereto. Various modifications and improvements can be made by those of ordinary skill in the art without departing from the spirit and essence of the present application, and these modifications and improvements are also considered to be within the scope of protection of the present application.

Claims

1. An array substrate, characterized by, The display region is divided into a plurality of heating sub-regions, and a heating electrode is arranged in each of the heating sub-regions. The array substrate further comprises a sub-region temperature control module and a heating wire module, the heating wire module comprises a plurality of heating wire groups, each of the heating wire groups is arranged corresponding to each of the heating sub-regions, and a first end of each of the heating wire groups is electrically connected to the sub-region temperature control module. The sub-region temperature control module is located in the peripheral region, and the sub-region temperature control module can control each of the heating wire groups to input a heating signal into the corresponding heating sub-region. The display region comprises M×N arrayed heating sub-regions, each of the heating sub-regions comprises m×n arrayed sub-pixels, wherein M, N, m and n are positive integers. The first end of each of the heating wire groups extends from a first side of the display region and is electrically connected to the sub-region temperature control module, and the first side is the closest side of the display region to the sub-region temperature control module. The second end of each of the heating wire groups extends into the corresponding heating sub-region along a first direction from the first side, and each of the heating wire groups corresponding to each of the heating sub-regions arranged along the first direction is staggered in a second direction perpendicular to the first direction. Each of the heating wires in each of the heating wire groups is located in a first pixel interval, and the first pixel interval is an interval between any two adjacent rows of sub-pixels arranged along the second direction. Each of the heating wire groups corresponding to each of the heating sub-regions adjacent to the first side of each row arranged along the second direction comprises a fifth heating wire and a sixth heating wire, the fifth heating wire and the sixth heating wire extend into two first pixel intervals adjacent to the edge of the heating sub-region through a connection line structure, and are electrically connected to the edge positions on both sides of the heating electrode corresponding to the heating sub-region through a via. The connection line structure comprises a main connection line and an auxiliary connection line, wherein the main connection line is parallel to the first direction, and the auxiliary connection line intersects one of the fifth heating wire and the sixth heating wire.

2. The array substrate of claim 1, wherein, The plurality of heating wire groups are arranged in parallel and spaced apart along the first direction, and the average length between adjacent heating wire groups is different.

3. The array substrate of claim 2, wherein, The heating wire group comprises a first heating wire and a second heating wire, any one of the first heating wire and the second heating wire is electrically connected to a signal input end of the sub-region temperature control module, and the other is electrically connected to a signal output end of the sub-region temperature control module.

4. The array substrate of claim 3, wherein, The first heating wire and the second heating wire are electrically connected to the edge positions on both sides of the heating electrode in the corresponding heating sub-region.

5. The array substrate of claim 2, wherein, For each row of the heating sub-regions arranged along the second direction, the first pixel interval where one of the heating wire groups corresponding to one of the two adjacent heating sub-regions is located is adjacent to the first pixel interval where one of the heating wire groups corresponding to the other heating sub-region is located.

6. The array substrate of claim 5, wherein, The heating line group corresponding to the heating sub-area adjacent to the first side edge in each row arranged along the first direction comprises a third heating line and a fourth heating line, the third heating line and the fourth heating line are respectively located in two first pixel intervals adjacent to the edge of the heating sub-area and are electrically connected through a via hole and the edge position on both sides of the heating electrode corresponding to the heating sub-area.

7. The array substrate of claim 5, wherein, The first pixel intervals where the fifth heating line and the sixth heating line are located are all first intervals, the first pixel intervals adjacent to the edge of the heating sub-area are second intervals, and the first pixel intervals between the first intervals and the second intervals are third intervals; one main connection line is arranged in each of the third intervals and the second intervals; The auxiliary connection line is located in a second pixel interval, the second pixel interval is the interval between any two adjacent columns of sub-pixels arranged along the second direction, and at least one auxiliary connection line is connected between each two adjacent main connection lines, and at least one auxiliary connection line is connected between each of the fifth heating line and the sixth heating line and the main connection line adjacent thereto.

8. The array substrate according to claim 5 or 6, wherein, The via hole is arranged in at least one second pixel interval in each heating sub-area, and the second pixel interval is the interval between any two adjacent columns of sub-pixels arranged along the second direction.

9. The array substrate according to claim 5 or 6, wherein, The array substrate comprises a substrate and a thin film transistor and a passivation layer arranged on the substrate in sequence away from the substrate, and one thin film transistor is arranged corresponding to each sub-pixel; Each heating electrode is arranged on the side of the passivation layer away from the substrate; The array substrate further comprises an insulating layer, each heating line group is arranged on the substrate, and the insulating layer is arranged between the layer where each heating line group is located and the gate layer of the thin film transistor. The array substrate further comprises a data line, the via hole is located on the side of the data line away from the thin film transistor, is arranged between the heating electrode and the corresponding heating line group, and penetrates the passivation layer, the gate insulating layer of the thin film transistor, and the insulating layer in sequence away from the substrate.

10. The array substrate of claim 9, wherein, The orthogonal projection of the heating line in each heating line group and the data line adjacent to the first pixel interval where the heating line is located on the substrate overlaps; and the width of the heating line in each heating line group is less than or equal to the width of the data line.

11. The array substrate of claim 1, wherein, The orthogonal projection profile of the heating electrode on the plane where the display area is located coincides with the profile of the heating sub-area.

12. The array substrate according to any one of claims 1 to 7, wherein, The array substrate further comprises a common electrode, the common electrode comprises a plurality of transparent metal oxide electrode blocks, and the transparent metal oxide electrode blocks can be reused as the heating electrode.

13. The array substrate of claim 12, wherein, Each heating line group is arranged in the same layer as the common electrode.

14. The array substrate of claim 12, wherein, The array substrate further comprises a display driving module, which is configured to periodically input a driving signal to the plurality of transparent metal oxide electrode blocks, each cycle of the driving signal comprising a signal-on period and a signal-off period; and the partition temperature control module inputs the heating signal to each of the transparent metal oxide electrode blocks in the signal-off period, and stops inputting the heating signal to each of the transparent metal oxide electrode blocks in the signal-on period.

15. The array substrate of claim 14, wherein, The common electrode can also be multiplexed as a touch electrode. The array substrate further comprises a touch driving module and a display driving module, and the first end of each of the heating wire groups is electrically connected to the touch driving module and the display driving module respectively. The display driving module is configured to periodically input a driving signal to the plurality of transparent metal oxide electrode blocks, each cycle of the driving signal comprising a signal-on period and a signal-off period; and the touch driving module can be multiplexed as the partition temperature control module, and inputs a touch signal to each of the transparent metal oxide electrode blocks in the signal-off period, and simultaneously multiplexes the touch signal as the heating signal, independently controls the intensity and / or input time interval of the touch signal input to the transparent metal oxide electrode blocks in the corresponding heating partition, and stops inputting the touch signal to each of the transparent metal oxide electrode blocks in the signal-on period.

16. The array substrate of claim 12, wherein, The common electrode can also be multiplexed as a touch electrode. The array substrate further comprises a touch driving module and a display driving module, and the first end of each of the heating wire groups is electrically connected to the touch driving module and the display driving module respectively. The display driving module is configured to periodically input a driving signal to the plurality of transparent metal oxide electrode blocks, each cycle of the driving signal comprising a signal-on period and a signal-off period; and the touch driving module can be multiplexed as the partition temperature control module, and inputs a touch signal to each of the transparent metal oxide electrode blocks in a first sub-period of the signal-off period, inputs the heating signal to each of the transparent metal oxide electrode blocks in a second sub-period of the signal-off period, and stops inputting the touch signal and the heating signal to each of the transparent metal oxide electrode blocks in the signal-on period.

17. The array substrate of claim 14, wherein, The display driving module and the partition temperature control module are located in the peripheral area, and the partition temperature control module is adjacent to a first side of the display area, and the display driving module is adjacent to a second side of the display area, and the first side intersects with the second side. The first end of each of the heating wire groups extends from the first side and is electrically connected to the partition temperature control module.

18. The array substrate of claim 15 or 16, wherein, The display driving module and the touch driving module are integrated together and located in the peripheral area, and the integrated display driving module and touch driving module are adjacent to a second side of the display area. The first end of each of the heating wire groups extends from the second side and is electrically connected to the integrated display driving module and touch driving module.

19. The array substrate of claim 12, wherein, The heating wire material in the heating wire group is a conductive metal.

20. The array substrate of claim 19, wherein, The electrically conductive metal includes any one or more of aluminum, copper, and molybdenum.

21. A liquid crystal display panel, characterized by comprising: An array substrate including any one of claims 1-20.

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