A display panel and a display device

Abstract

The present invention provides a display panel and a display device. In this display panel, the patterns of the heating traces corresponding to the pixel opening regions of each pixel are the same, that is, the number, arrangement mode, extension direction, etc. of the heating traces are all the same. In this way, it can be ensured that the pixels in all regions of the display panel have the same microscopic surface morphology. Secondly, corresponding connection designs are made for the heating traces in the heating units, so that different heating units have different total resistances, and further different heating units correspond to different heating powers, so as to meet the heating requirements of different regions of the display panel.

Description

Technical Field

[0001] The present invention relates to the field of display technologies, and more particularly, to a display panel and a display device. Background Art

[0002] A liquid crystal display panel relies on the liquid crystal therein to display an image. In a normal temperature working environment, the liquid crystal maintains a normal liquid crystal structure, has good fluidity, and can meet the requirements of normal image display. When the working environment temperature of the liquid crystal display panel is too low, the viscosity coefficient of the liquid crystal increases, the threshold voltage rises, and the response speed slows down, resulting in a phenomenon of dynamic ghosting in the displayed image. Generally, in an environment below -40°C, the liquid crystal even solidifies, the liquid crystal state disappears, and the liquid crystal display cannot work.

[0003] Based on this, currently, most liquid crystal display panels are provided with corresponding heating traces to heat the liquid crystal in the liquid crystal display panel under certain environments, ensuring that the liquid crystal display panel can display a better image.

[0004] However, currently, in order to meet the heating requirements of different regions, the liquid crystal display panel is provided with heating traces of different thicknesses, which leads to inconsistent microscopic surface morphologies of different pixel aperture regions, and ultimately affects the display effect of the liquid crystal display panel. Summary of the Invention

[0005] In view of this, to solve the above problems, the present invention provides a display panel and a display device, and the technical solutions are as follows:

[0006] A display panel having a plurality of pixel aperture regions, the display panel comprising:

[0007] A plurality of heating units, the heating units being correspondingly arranged with the pixel aperture regions, each heating unit including N heating traces, N≥2 and N being a positive integer, the heating traces extending along a first direction and arranged in sequence along a second direction, the first direction intersecting the second direction, and the first direction and the second direction being respectively parallel to the plane of the display panel;

[0008] Wherein, among the N heating traces, there are effective heating traces and ineffective heating traces, and in some of the heating units, both ends of the ineffective heating traces are respectively connected to the effective heating traces, and in some of the heating units, one end of the ineffective heating traces is connected to the effective heating traces.

[0009] The present invention also provides a display device including the above display panel.

[0010] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0011] In the display panel provided by the present invention, the patterns of the heating traces corresponding to the pixel opening regions of each pixel are the same, that is, the number, arrangement mode, extension direction, etc. of the heating traces are all the same. In this way, it can be ensured that the pixels in all regions of the display panel have the same microscopic surface morphology. Secondly, corresponding connection designs are carried out on the heating traces in the heating units, so that different heating units have different total resistances, and then different heating units correspond to different heating powers, so as to meet the heating requirements of different regions of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0013] Figure 1 It is a schematic structural diagram of a display panel provided by an embodiment of the present invention;

[0014] Figure 2 It is a schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0015] Figure 3 It is a schematic cross-sectional view of a display panel provided by an embodiment of the present invention along Figure 2 the cutting line AA therein;

[0016] Figure 4 It is a schematic structural diagram of yet another display panel provided by an embodiment of the present invention;

[0017] Figure 5 It is a schematic cross-sectional view of a display panel provided by an embodiment of the present invention along Figure 2 the cutting line BB therein;

[0018] Figure 6 It is another schematic cross-sectional view of a display panel provided by an embodiment of the present invention along Figure 2 the cutting line BB therein;

[0019] Figure 7 It is a schematic structural diagram of yet another display panel provided by an embodiment of the present invention;

[0020] Figure 8 It is a schematic structural diagram of yet another display panel provided by an embodiment of the present invention;

[0021] Figure 9 It is a schematic structural diagram of yet another display panel provided by an embodiment of the present invention;

[0022] Figure 10A schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0023] Figure 11 A schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0024] Figure 12 A schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0025] Figure 13 A schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0026] Figure 14 A schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0027] Figure 15 A schematic structural diagram of another display panel provided by an embodiment of the present invention;

[0028] Figure 16 A schematic structural diagram of a display device provided by an embodiment of the present invention. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Based on the content recorded in the background art, it can be known that the heating requirements of different regions of the display panel are different. For example, in the region close to the display panel driving IC (the full English name is Integrated Circuit Chip), since heat is spontaneously generated when the driving IC works, the heating requirement in the region where the driving IC is located is relatively low; on the contrary, in the region far from the display panel driving IC, since there is no heat spontaneously generated when the driving IC works, the heating requirement for this part of the region will be relatively high.

[0031] Furthermore, in combination with the power formula P = I 2 R, it can be known that when the current I is constant, the greater the resistance R of the heating trace, the greater the heating power P of the heating trace. Therefore, in some existing technical solutions, thinner heating traces are usually arranged in the regions with higher heating requirements, and thicker heating traces are arranged in the regions with lower heating requirements to meet the heating requirements of different regions of the display panel.

[0032] Obviously, these heating traces with inconsistent thicknesses will result in inconsistent microscopic surface topographies in different pixel opening regions, and ultimately affect the display effect of the display panel.

[0033] Based on this, in the embodiments of the present invention, a display panel and a display device are provided. The heating traces are reasonably designed, and while meeting the heating requirements of different regions of the display panel, the display effect of the display panel can also be optimized.

[0034] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Reference Figure 1 , Figure 1 is a schematic structural diagram of a display panel provided by an embodiment of the present invention. The display panel has a plurality of pixel opening regions 11. In the embodiments of the present invention, the plurality of pixel opening regions 11 are described by taking the array arrangement as an example. Reference Figure 2 , Figure 2 is a schematic structural diagram of another display panel provided by an embodiment of the present invention. The display panel includes:

[0036] A plurality of heating units 12, the heating units 12 are correspondingly arranged with the pixel opening regions 11. For example, the heating units 12 are arranged in a one-to-one correspondence with the pixel opening regions 11, or one heating unit 12 corresponds to a plurality of pixel opening regions 12. The heating unit 12 includes N heating traces L1, N≥2 and N is a positive integer. The heating traces L1 extend along the first direction X and are arranged in sequence along the second direction Y. The first direction X intersects with the second direction Y, and the first direction X and the second direction Y are respectively parallel to the plane of the display panel.

[0037] Among them, the N heating traces L1 include effective heating traces L1a and ineffective heating traces L1b. In some of the heating units 12, both ends of the ineffective heating traces L1b are respectively connected to the effective heating traces L1a. In some of the heating units 12, one end of the ineffective heating traces L1b is connected to the effective heating traces L1a.

[0038] It should be noted that in the heating state of the display panel in the embodiments of the present invention, current will flow through the effective heating traces L1a in any one of the heating units 12, and current will flow through the ineffective heating traces L1b in some of the heating units 12, and no current will flow through the ineffective heating traces L1b in some of the heating units 12.

[0039] Specifically, in the embodiments of the present invention Figure 2Taking three pixel opening regions 11 (i.e., the first pixel opening region 11a, the second pixel opening region 11b, and the third pixel opening region 11c) as an example for illustration, and taking the number of heating traces L1 in the heating unit 12 as two for illustration. That is to say, when the number of heating traces L1 is two, the number of heating traces L1 corresponding to each pixel opening region 11 is two. Similarly, when the number of heating traces L1 is N, the number of heating traces L1 corresponding to each pixel opening region 11 is N, and the extending direction of each heating trace L1 is the same. That is, the same heating trace pattern is correspondingly arranged for each pixel opening region 11 of the display panel, so as to ensure that the pixels in all regions of the display panel have the same microscopic surface topography.

[0040] Further, as Figure 2 shown, assuming that voltages are applied to both ends of the effective heating trace L1a. The two ends of the ineffective heating trace L1b in the heating unit 12 corresponding to the first pixel opening region 11a are respectively connected to the effective heating trace L1a. That is, this part of the ineffective heating trace L1b and the effective heating trace L1a are in a parallel state. After the voltage is applied, current can flow through this part of the ineffective heating trace L1b and the effective heating trace L1a simultaneously. At this time, the current flows through the ineffective heating trace L1b and the effective heating trace L1a, and the ineffective heating trace L1b and the effective heating trace L1a will generate heat. One end of the ineffective heating trace L1b in the heating unit 12 corresponding to the third pixel opening region 11c is connected to the effective heating trace L1a. Then, after the voltage is applied to both ends of the effective heating trace L1a, only one heating trace L1 can allow current to flow through. In the embodiment of the present invention, taking the effective heating trace L1a can allow current to flow through as an example for illustration. At this time, no current flows through the ineffective heating trace L1b. At this time, the effective heating trace L1a will generate heat, while the ineffective heating trace L1b will not generate heat.

[0041] It can be seen from this that the total resistance of the heating traces L1 in the heating unit 12 corresponding to the first pixel opening region 11a is less than the total resistance of the heating traces L1 in the heating unit 12 corresponding to the third pixel opening region 11c. Obviously, the heating power of the heating unit 12 corresponding to the first pixel opening region 11a is less than the heating power of the heating unit 12 corresponding to the third pixel opening region 11c.

[0042] Generally speaking, the display panel provided by the embodiment of the present invention can meet the heating requirements of different regions, and can also ensure that the pixels in all regions of the display panel have the same microscopic surface topography at the same time, so as to comprehensively improve the display effect of the display panel.

[0043] Optionally, in order to further reduce the impact of the heating trace L1 on the display effect of the display panel, a transparent material can be selected to prepare the heating trace L1 in the embodiments of the present invention.

[0044] It should be noted that, as Figure 2 shown, the voltage is also applied at both ends of the effective heating trace L1a. The ineffective heating trace L1b and the effective heating trace L1a in the heating unit 12 corresponding to the second pixel opening area 11b are not connected. At this time, only one heating trace L1 can pass through the current after the voltage is applied. In the embodiments of the present invention, the case where the effective heating trace L1a can pass through the current is taken as an example for description. At this time, no current passes through the ineffective heating trace L1b. Then, the effective heating trace L1a will generate heat, while the ineffective heating trace L1b will not generate heat. For more comprehensive consideration, in order to avoid possible display problems caused by the suspension of the ineffective heating trace L1b at this time, it is better to also connect one end of the ineffective heating trace L1b to the effective heating trace L1a, just like the design of the third pixel opening area 11c.

[0045] Optionally, in another embodiment of the present invention, the display panel includes: a first driving chip, a first area, and a second area. The first driving chip is used to control the display state of the display panel. The first area is far from the area where the first driving chip is located, and the second area is close to the area where the first driving chip is located.

[0046] Among them, the heating unit 12 in which both ends of the ineffective heating trace L1b are respectively connected to the effective heating trace L1a is located in the second area, and the heating unit 12 in which one end of the ineffective heating trace L1b is connected to the effective heating trace L1a is located in the first area.

[0047] Specifically, in the embodiments of the present invention, in the area where high-power heating is not required, such as the second area at this time, the effective heating trace L1a and the ineffective heating trace L1b in the heating unit 12 located in the second area can be connected in parallel, so that the total resistance of the heating trace L1 in the heating unit 12 in the second area becomes smaller. When the same voltage is applied to each heating unit L1, it shares less voltage to reduce its heating power; in the area where high-power heating is required, such as the first area at this time, at least one heating trace in the heating unit 12 located in the first area can be made not to conduct current, and at least one heating trace can be reserved to conduct current, so that the total resistance of the heating trace L1 in the heating unit 12 in the first area becomes larger. When the same voltage is applied to each heating unit 12, it shares more voltage to increase its heating power.

[0048] It can be seen that this design can meet the heating requirements of different areas of the display panel and can also simultaneously ensure that the pixels in all areas of the display panel have the same microscopic surface morphology, thereby comprehensively improving the display effect of the display panel.

[0049] It should be noted that, in the embodiment of the present invention, the first area and the second area are display areas of the display panel.

[0050] It should be further explained that the first driver chip may also be a driver chip for providing a scan signal to the scan line Scan, or a driver chip for providing a data signal to the data line Data, and so on.

[0051] Optionally, in another embodiment of the present invention, referring to Figure 3 , Figure 3 An embodiment of the present invention provides a Figure 2 Schematic diagram of the cross section of the middle cutting line AA, reference Figure 4 , Figure 4 This is a schematic structural diagram of another display panel provided by an embodiment of the present invention. The display panel includes a color filter substrate 13 and an array substrate 14 that are oppositely arranged, and a liquid crystal layer 15 located between the color filter substrate 13 and the array substrate 14 .

[0052] The array substrate 14 includes a substrate 16, a first metal layer located on the side of the substrate 16 facing the color filter substrate 13, and a second metal layer located on the side of the first metal layer away from the substrate 16. The first metal layer is used to form scan lines, and the second metal layer is used to form data lines.

[0053] like Figure 4 As shown, the scan lines Scan and the data lines Data intersect to form a plurality of pixel opening areas 11 , and the plurality of pixel opening areas 11 are arranged in an array. In the embodiment of the present invention, the vertical intersection of the scan lines Scan and the data lines Data is taken as an example for description.

[0054] It should be noted that the first direction X may be a row direction or a column direction in which the plurality of pixel opening regions 11 are arranged in an array.

[0055] Further, such as Figure 3As shown, the array substrate 14 further includes a plurality of thin film transistors 10. The thin film transistor 10 includes an active layer 101, a gate 102, a source 103, and a drain 104. The gate 102 is located in the first metal layer, and the source 103 and the drain 104 are located in the second metal layer. The array substrate 14 further includes a gate insulating layer 17, an interlayer insulating layer 18, a passivation layer 19, and a planarization layer 20. The gate insulating layer 17 is disposed between the active layer 101 and the gate 102. The interlayer insulating layer 18 is disposed between the gate 102 and the source 103 and the drain 104. The passivation layer 19 is disposed on a side of the source 103 and the drain 104 facing away from the interlayer insulating layer 18. The planarization layer 20 is disposed on a side of the passivation layer 19 facing away from the interlayer insulating layer 18. It should be noted that the source 103 and the drain 104 are located in the same layer.

[0056] It should be noted that Figure 3 only one thin film transistor 10 is taken as an example for illustration, and Figure 3 the thin film transistor 10 shown is of the top-gate thin film transistor type. The thin film transistor 10 may also be of the bottom-gate thin film transistor type or the double-gate thin film transistor type, which is not limited in the embodiments of the present invention.

[0057] Optionally, Figure 3 the buffer layer 21 on one side of the substrate 16 includes, but is not limited to, an inorganic material layer or an organic material layer. Among them, the materials of the inorganic material layer include, but are not limited to, silicon oxide, silicon nitride, silicon oxynitride, aluminum oxide, aluminum nitride, etc. The materials of the organic material layer include, but are not limited to, acrylic or PI, etc. In the embodiments of the present invention, the buffer layer is described by taking the organic material layer as an example.

[0058] Optionally, in another embodiment of the present invention, referring to Figure 5 , Figure 5 is a schematic cross-sectional view along the Figure 2 cutting line BB provided by the embodiment of the present invention. Referring to Figure 6 , Figure 6 is another schematic cross-sectional view along the Figure 2 cutting line BB provided by the embodiment of the present invention. The N heating traces L1 are located on a side of the first metal layer facing away from the second metal layer.

[0059] Or, the N heating traces L1 are located on a side of the second metal layer facing the color filter substrate 13.

[0060] Specifically, in the embodiments of the present invention, as shown in Figure 5 , the N heating traces L1 are located on a side of the first metal layer facing away from the second metal layer. As shown in Figure 6The N heating traces L1 shown are located on the side of the second metal layer facing the color filter substrate. That is to say, no matter where the heating trace L1 is arranged, it is best to ensure that the arrangement of the heating trace L1 will not cause too much impact on other structures of the display panel, especially to minimize problems such as parasitic capacitance with other metal film layers.

[0061] Optionally, in another embodiment of the present invention, referring to Figure 7 , Figure 7 is a schematic structural diagram of another display panel provided by an embodiment of the present invention. Referring to Figure 8 , Figure 8 is a schematic structural diagram of another display panel provided by an embodiment of the present invention. The heating unit 12 further includes a connection line L2. One end of the connection line L2 is connected to the ineffective heating trace L1b, and the other end is connected to the effective heating trace L1a.

[0062] The extending direction of the connection line L2 is parallel to the extending direction of the scan line Scan, and the orthographic projection of the connection line L2 on the array substrate 14 does not overlap with the orthographic projection of the scan line Scan on the array substrate 14.

[0063] Or, the extending direction of the connection line L2 is parallel to the extending direction of the data line Data, and the orthographic projection of the connection line L2 on the array substrate 14 does not overlap with the orthographic projection of the data line Data on the array substrate 12.

[0064] Specifically, in an embodiment of the present invention, as shown in Figure 7 , when the first direction X is the column direction in which a plurality of pixel opening regions 11 are arranged in an array, the extending direction of the connection line L2 is made parallel to the extending direction of the scan line Scan, ensuring that the arrangement of the connection line L2 does not occupy too much space, and the orthographic projection of the connection line L2 on the array substrate 14 does not overlap with the orthographic projection of the scan line Scan on the array substrate 14, ensuring that there is no overlapping region between the connection line L2 and the scan line Scan, and avoiding interference of the signal on the connection line L2 with the signal on the scan line Scan.

[0065] Similarly, as shown in Figure 8 , when the first direction X is the row direction in which a plurality of pixel opening regions 11 are arranged in an array, the extending direction of the connection line L2 is made parallel to the extending direction of the data line Data, ensuring that the arrangement of the connection line L2 does not occupy too much space, and the orthographic projection of the connection line L2 on the array substrate 14 does not overlap with the orthographic projection of the data line Data on the array substrate 14, ensuring that there is no overlapping region between the connection line L2 and the data line Data, and avoiding interference of the signal on the connection line L2 with the signal on the data line Data.

[0066] Generally speaking, in the embodiment of the present invention, the setting of the connection line L2 will not have too much impact on other structures of the display panel and will not occupy too much wiring space when the heating trace L1 can be interconnected.

[0067] Optionally, in another embodiment of the present invention, referring to Figure 9 , Figure 9 FIG. is a schematic structural diagram of another display panel provided by an embodiment of the present invention. The display panel further includes: a third region and a fourth region opposite to each other in the first direction, and the pixel opening region 11 is located between the third region and the fourth region. It should be noted that the third region and the fourth region are the border regions of the display panel. For example, the third region and the fourth region are the opposite border regions of the upper and lower parts of the display panel, or the third region and the fourth region are the opposite border regions of the left and right parts of the display panel.

[0068] A crimping pad 22 is provided in the third region and / or the fourth region, and the heating trace L1 is electrically connected to the crimping pad 22 to form a current loop.

[0069] Specifically, in the embodiment of the present invention, the third region and the fourth region can be understood as partial border regions of the display panel, and the region where the pixel opening region 11 is located can be understood as the display region of the display panel. By providing the crimping pad 22 in the third region and / or the fourth region, the corresponding heating trace L1 in the heating unit 12 is electrically connected to the crimping pad 22 to form a current loop. Then, when current flows through the heating trace L1, the heating trace L1 generates heat to heat the liquid crystal.

[0070] It should be noted that, in Figure 9 the case where crimping pads 20 are provided in both the third region and the fourth region is taken as an example for illustration.

[0071] Optionally, in another embodiment of the present invention, referring to Figure 10 , Figure 10 FIG. is a schematic structural diagram of another display panel provided by an embodiment of the present invention. Referring to Figure 11 , Figure 11 FIG. is a schematic structural diagram of another display panel provided by an embodiment of the present invention. When the two ends of the invalid heating trace L1b are respectively connected to the valid heating trace L1a, there are two ways to layout the crimping pad 22 in the embodiment of the present invention, which are specifically as follows:

[0072] The first one is as shown in Figure 10As shown, crimp pads 22 are provided in both the third region and the fourth region. The portion of the ineffective heating trace L1b and / or the effective heating trace L1a extending into the third region is electrically connected to the crimp pad 22 in the third region, and the portion extending into the fourth region is electrically connected to the crimp pad 22 in the fourth region.

[0073] Or,

[0074] Second, as Figure 11 shown, a crimp pad is provided in either the third region or the fourth region. The portion of the ineffective heating trace L1b extending into the target region is electrically connected to the crimp pad 22, and the portion of the effective heating trace L1a extending into the target region is electrically connected to the other crimp pad 22. The target region is the region where the crimp pad 22 is provided among the third region and the fourth region.

[0075] Specifically, in the first layout method of the crimp pad 22 in the embodiment of the present invention, crimp pads 22 are provided in both the third region and the fourth region. Then, only by connecting both ends of the heating trace L1 to a crimp pad 22 respectively can a current loop be formed. The connection method is simple, and by distributing the required crimp pads 22 in the third region and the fourth region on both sides, more heating traces L1 and their corresponding crimp pads 22 can be provided within a limited space.

[0076] In the second layout method of the crimp pad 22, a crimp pad 22 is provided in any one of the third region and the fourth region. At this time, the crimp pads 22 are all distributed on the same side, and obviously, the connection method between the crimp pad 22 and the power supply end can be optimized.

[0077] Optionally, in another embodiment of the present invention, referring to Figure 12 , Figure 12 which is a schematic structural diagram of another display panel provided by the embodiment of the present invention, when one end of the ineffective heating trace L1b is connected to the effective heating trace L1a,

[0078] crimp pads 22 are provided in both the third region and the fourth region. The portion of the effective heating trace L1a extending into the third region is electrically connected to the crimp pad 22 in the third region, and the portion extending into the fourth region is electrically connected to the crimp pad 22 in the fourth region.

[0079] Specifically, in the embodiment of the present invention, since the ineffective heating trace L1b is in a state where no current flows at this time, in this connection method, the crimp pads 22 can only be distributed in the third region and the fourth region. Further, only by connecting both ends of the effective heating trace L1a to a crimp pad 22 respectively can a current loop be formed, and the connection method is also relatively simple.

[0080] Generally speaking, regardless of how the crimp pads 22 are arranged within the display panel, first, on the basis of ensuring that a normal current loop can be established, the space of the display panel can be reasonably utilized and the wiring method can be simplified for design.

[0081] It should be noted that, in order to avoid the situation where the microscopic surface topography of the pixels becomes inconsistent due to the setting of the connection line L2, in the embodiment of the present invention, the connection line L2 is made to correspond to the pixel opening region 11. Specifically, the connection line L2 can be set in one-to-one correspondence with the pixel opening region 11, further ensuring that the pixels in all regions of the display panel have the same microscopic surface topography.

[0082] Optionally, in another embodiment of the present invention, referring to Figure 13 , Figure 13 is a schematic structural diagram of another display panel provided by the embodiment of the present invention. The display panel further includes: a flexible circuit board 23, and a current control module is integrally provided on the flexible circuit board 23.

[0083] The crimp pad 22 is electrically connected to the flexible circuit board 23, and the current control module is used to supply current to the heating trace L1.

[0084] Specifically, in the embodiment of the present invention, based on the characteristics of the flexible circuit board 23, the relatively thick traces inside it can usually directly output a large current. Combining with the integrally provided current control module to control the state of supplying current to the heating trace L1, it is ensured that the heating trace L1 can generate sufficient heat to heat the liquid crystal in the heating state, improving the heating effect.

[0085] It should be noted that Figure 13 only exemplifies the connection of some of the crimp pads 22 to the flexible circuit board 23.

[0086] Optionally, in another embodiment of the present invention, referring to Figure 14 , Figure 14 is a schematic structural diagram of another display panel provided by the embodiment of the present invention. The display panel further includes: a second driving chip 24, the second driving chip 24 is electrically connected to the crimp pad 22, and the second driving chip 24 is used to supply current to the heating trace L1.

[0087] Specifically, in the embodiment of the present invention, there is no need to set an additional flexible circuit board. The state of supplying current to the heating trace L1 is directly controlled by the second driving chip 24 that controls the working state of the display panel. This method can also ensure that the heating trace L1 generates sufficient heat to heat the liquid crystal in the heating state, improving the heating effect. Moreover, the flexible circuit board component is omitted, and the space layout of the display panel can be optimized, reducing its production cost.

[0088] It should be noted that Figure 14 only a part of the connection between the crimp pads 22 and the driving chip 24 is exemplified herein.

[0089] Optionally, in another embodiment of the present invention, referring to Figure 15 , Figure 15 is a schematic structural diagram of another display panel provided by an embodiment of the present invention. In the first direction X, a plurality of the pixel opening regions 11 include a first pixel opening region to an Mth pixel opening region (i.e., Figure 15 1a1, 1a2,..., 1aM shown in

[0090] ), where M≥2 and M is a positive integer.

[0091] Specifically, in the embodiment of the present invention, the heating units 12 may be provided in one-to-one correspondence with the pixel opening regions 11, or one heating unit 12 may correspond to a plurality of pixel opening regions 11. That is to say, one heating unit 12 may span multiple pixels, thereby reducing the number of connection lines L2 and crimp pads 22.

[0092] Optionally, based on all the above embodiments of the present invention, in another embodiment of the present invention, a display device is further provided. Referring to Figure 16 , Figure 16 is a schematic structural diagram of a display device provided by an embodiment of the present invention.

[0093] The display device 111 includes the display panel provided by the above embodiment.

[0094] Specifically, since the display device 111 provided by the embodiment of the present invention includes any one of the display panels provided by the above embodiments, the display device 111 has the same or corresponding technical effects as the display panel provided by the above embodiments.

[0095] The display device 111 may specifically be a mobile phone, a computer, and other electronic devices, etc.

[0096] The above provides a detailed introduction to a display panel and a display device provided by the present invention. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

[0097] It should be noted that each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the identical or similar parts among the embodiments, reference can be made to each other. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method part.

[0098] It should also be noted that in this text, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements also includes the elements inherent to these processes, methods, articles or devices, or further includes the elements inherent to these processes, methods, articles or devices. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0099] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that, The display panel has a plurality of pixel opening regions, and the display panel includes: A plurality of heating units, which are correspondingly arranged with the pixel opening regions. The heating units include N heating traces, where N≥2 and N is a positive integer. The heating traces extend along a first direction and are arranged in sequence along a second direction. The first direction intersects with the second direction, and the first direction and the second direction are respectively parallel to the plane of the display panel; Among them, the number, arrangement mode, and extension direction of the heating traces corresponding to each pixel opening region are the same. The N heating traces include effective heating traces and ineffective heating traces. In some of the heating units, both ends of the ineffective heating traces are respectively connected to the effective heating traces, and in some of the heating units, one end of the ineffective heating traces is connected to the effective heating traces.

2. The display panel according to claim 1, wherein The display panel includes: a first driving chip, a first region, and a second region. The first driving chip is used to control the display state of the display panel. The first region is far from the region where the first driving chip is located, and the second region is close to the region where the first driving chip is located; Among them, the heating units in which both ends of the ineffective heating traces are respectively connected to the effective heating traces are located in the second region, and the heating units in which one end of the ineffective heating traces is connected to the effective heating traces are located in the first region.

3. The display panel according to claim 1, characterized in that, The display panel further includes: a color filter substrate and an array substrate arranged oppositely, and a liquid crystal layer located between the color filter substrate and the array substrate; The array substrate includes a substrate, a first metal layer on one side of the substrate facing the color filter substrate, and a second metal layer on one side of the first metal layer facing away from the substrate. The first metal layer is used to form scan lines, and the second metal layer is used to form data lines.

4. The display panel according to claim 3, characterized in that, The N heating traces are located on one side of the first metal layer facing away from the second metal layer; Or, The N heating traces are located on one side of the second metal layer facing the color filter substrate.

5. The display panel according to claim 3, wherein, The heating unit further includes a connection line. One end of the connection line is connected to the ineffective heating trace, and the other end is connected to the effective heating trace; The extension direction of the connection line is parallel to the extension direction of the scan line, and the orthographic projection of the connection line on the array substrate does not overlap with the orthographic projection of the scan line on the array substrate; Or, The extension direction of the connection line is parallel to the extension direction of the data line, and the orthographic projection of the connection line on the array substrate does not overlap with the orthographic projection of the data line on the array substrate.

6. The display panel according to claim 1, wherein The display panel further includes: a third region and a fourth region opposite to each other in the first direction. The pixel opening region is located between the third region and the fourth region; A crimping pad is provided in the third region and / or the fourth region. The heating trace is electrically connected to the crimping pad to form a current loop.

7. The display panel according to claim 6, wherein When both ends of the ineffective heating trace are respectively connected to the effective heating trace, The third region and the fourth region are both provided with crimp pads. The part of the ineffective heating trace and / or the effective heating trace extending to the third region is electrically connected to the crimp pad in the third region, and the part extending to the fourth region is electrically connected to the crimp pad in the fourth region; Or, The third region or the fourth region is provided with a crimp pad. The part of the ineffective heating trace extending to the target region is electrically connected to the crimp pad, and the part of the effective heating trace extending to the target region is electrically connected to the other crimp pad. The target region is the region among the third region and the fourth region where the crimp pad is provided.

8. The display panel according to claim 6, wherein When one end of the ineffective heating trace is connected to the effective heating trace, The third region and the fourth region are both provided with crimp pads. The part of the effective heating trace extending to the third region is electrically connected to the crimp pad in the third region, and the part extending to the fourth region is electrically connected to the crimp pad in the fourth region.

9. The display panel according to claim 6, characterized in that, The display panel further includes: a flexible circuit board, and a current control module is integrally provided on the flexible circuit board; The crimp pad is electrically connected to the flexible circuit board, and the current control module is configured to supply current to the heating trace.

10. The display panel according to claim 6, wherein The display panel further includes: a second driving chip, and the second driving chip is electrically connected to the crimp pad, and the second driving chip is configured to supply current to the heating trace.

11. The display panel according to claim 1, wherein In the first direction, a plurality of the pixel opening regions include a first pixel opening region to an Mth pixel opening region, M≥2 and M is a positive integer; A first heating unit is correspondingly provided for the first pixel opening region, and the effective heating trace and the ineffective heating trace in the first heating unit further sequentially extend to the Mth pixel opening region.

12. The display panel according to claim 1, wherein, The material of the heating trace is a transparent material.

13. A display device, characterized in that, The display device includes the display panel according to any one of claims 1-12.

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