Display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel comprises a fan-out area, a plurality of wirings, the wiring comprising a winding pattern in the fan-out area; a plurality of winding units in the fan-out area, the same winding unit comprising at least two winding patterns winding in parallel along the same track, and the adjacent winding patterns being arranged in mutual embedding. The technical scheme provided by the embodiment of the application sets the winding pattern in the fan-out area, the winding unit comprises at least two winding patterns winding in parallel along the same track, and the adjacent winding patterns are arranged in mutual embedding, so that the size of the straight line segment of the winding pattern winding in parallel along the same track is longer, the number of the bending angle of the wiring is reduced, the wiring resistance is increased, the difference between the resistances of the wirings transmitting the same kind of signals to the pixel driving circuit is reduced, the current flow paths in each wiring transmitting the same kind of signals to the pixel driving circuit are as same as possible, and the display effect of the display panel is improved.

Description

Technical Field

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

[0002] With the development of display technology, people have increasingly higher requirements for it. Existing display panels suffer from vertical mura issues, which negatively impacts the user experience. Summary of the Invention

[0003] The present invention provides a display panel and a display device to solve the problem of vertical muting when the display panel is used for display.

[0004] According to one aspect of the present invention, a display panel is provided, the display panel comprising:

[0005] Fan-out area,

[0006] Multiple routing lines, including routing patterns located in the fan-out area;

[0007] Multiple winding units located in the fan-out area, each winding unit includes at least two winding patterns that are wound in parallel along the same trajectory, and adjacent winding patterns are interlocked.

[0008] Optionally, the same winding unit includes a winding pattern of at least two adjacent strands wound in parallel along the same trajectory;

[0009] The resistance of each trace is the same.

[0010] Optionally, along the Y direction, the length of the winding unit is greater than or equal to the length of the winding pattern, and along the X direction, the width of the winding unit is greater than or equal to the width of the winding pattern.

[0011] Optionally, the winding patterns of adjacent traces can be set to different layers;

[0012] The winding patterns of two adjacent traces are staggered.

[0013] Optional winding patterns include:

[0014] At least two first routing sections, the first routing sections extending along the X direction;

[0015] At least one second routing section extends along the Y direction, and adjacent first routing sections are connected end to end through the second routing section.

[0016] A bend angle is formed between the adjacent first and second wiring sections.

[0017] Optionally, the first and second routing portions of the same winding pattern are perpendicular to each other;

[0018] The first and second routing sections of the same winding pattern are set on the same layer or on different layers.

[0019] Optionally, the first routing portions of each winding pattern in the winding unit are parallel to each other;

[0020] The second routing sections of each winding pattern in the winding unit are parallel to each other.

[0021] Optionally, the shape of the winding pattern includes at least one of S-shape, bow shape, or serrated shape.

[0022] Optionally, along the X direction, from the middle region of the fan-out area to the edge region of the fan-out area, the length of the winding unit along the Y direction gradually decreases.

[0023] According to another aspect of the present invention, a display device is provided, comprising any display panel as described in the first aspect.

[0024] The technical solution of this invention provides a wiring pattern located in the fan-out area. The same winding unit includes at least two winding patterns that are wound in parallel along the same trajectory. Adjacent winding patterns are interlocked, which makes it easier to set the straight segments of the winding patterns that are wound in parallel along the same trajectory to be longer, reducing the number of bends in the wiring, thereby increasing the wiring resistance and reducing the resistance difference between wirings that transmit the same signal to the pixel driving circuit. This makes the current flow path in each wiring that transmits the same signal to the pixel driving circuit as similar as possible, improving the display effect of the display panel.

[0025] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a display panel in the prior art;

[0028] Figure 2 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Detailed Implementation

[0034] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0035] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0036] As mentioned in the background section, display panels suffer from vertical mura during display. The inventors discovered that in the non-display area of ​​the display panel, the inconsistent resistance of the traces transmitting the same signal to the pixel driving circuit causes vertical mura in the display area. Figure 1 This is a schematic diagram of the structure of a display panel in the prior art. See also... Figure 1 The display panel 100 includes traces 1, and traces 1 include winding patterns 2. The winding pattern 2 is a portion of the trace with bends at a certain angle to increase the length of the trace 1. By adding the winding pattern 2, the resistance difference between traces transmitting the same signal to the pixel driving circuit is reduced. See also... Figure 1The existing display panel 100 has a large number of bends in the winding pattern 2. Due to the photolithography process of the wiring, the bends of the wiring are generally arcs, which shortens the current flow path at the bend of the wiring 1. This results in a large difference in resistance between the shorter wiring 1 and the longer wiring 1 in the winding pattern 2, and a large difference in driving current, which leads to the problem of vertical mura still existing in the display area.

[0037] Figure 2 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention. See also: Figure 2 The display panel 100 provided in this embodiment of the invention is divided into a display area 10 and a non-display area 20. The non-display area 20 includes a fan-out area 201. The display panel 100 includes multiple traces 1. The traces 1 include winding patterns 2 located in the fan-out area 201. Multiple winding units 3 are located in the fan-out area 201. The same winding unit 3 includes at least two winding patterns 2 that are wound in parallel along the same trajectory. Adjacent winding patterns 2 are interlocked.

[0038] Specifically, the display area 10 of the display panel 100 is used to display images. The display area 10 includes pixel units, which are driven to emit light by a pixel driving circuit. The display panel 100 includes multiple traces, which can be data signal lines, power signal lines, clock signal lines, etc. The traces 1 include a winding pattern 2 located in the fan-out area 201. The winding pattern 2 is used to increase the resistance of the traces 1 and reduce the resistance difference between traces 1 that transmit the same type of signal to the pixel driving circuit. The shape of the winding pattern 2 includes an arc shape or a serpentine shape, etc., and is not limited here. The traces 1 located in the fan-out area 201 along the Y direction include a winding pattern 2 and a straight section 30. At least two strands of winding pattern 2 are wound in parallel along the same trajectory, and adjacent winding patterns 2 are interlocked to form a winding unit 3. The winding unit 3 can be two or more adjacent strands of winding pattern 2 wound in parallel, or two or more non-adjacent strands of winding pattern 2 wound in parallel. Figure 1 This illustration is merely illustrative of the case where two adjacent strands are wound in parallel, and is not intended to be limiting.

[0039] At least two parallel winding patterns 2 along the same trajectory, with adjacent winding patterns 2 interlocking, constitute a winding unit 3, ensuring that at least two traces 1 located in the non-display area 20 are wound in parallel along the same trajectory. The parallel winding patterns 2 of at least two traces 1 along the same trajectory, with adjacent winding patterns 2 interlocking, save space occupied by the winding patterns 2 of each trace 1, facilitating longer straight segments of the winding patterns 2 that are wound in parallel along the same trajectory, and reducing the number of bends in the traces 1. For traces 1 of the same length, the reduced number of bends results in fewer rounded corners, thereby increasing wiring resistance and reducing the resistance difference between traces 1 transmitting the same signal to the pixel driving circuit.

[0040] On the other hand, by having at least two parallel winding patterns 2 arranged along the same trajectory and interlocked with adjacent winding patterns 2 to form a winding unit 3, it is easier to ensure that the number of bends of each winding pattern 2 within the same winding unit 3 is consistent as needed. This results in a smaller number of bends for each winding pattern 2 within the same winding unit 3, reducing the resistance difference between traces 1 transmitting the same type of signal to the pixel driving circuit. Furthermore, by having at least two parallel winding patterns 2 arranged along the same trajectory and interlocked with adjacent winding patterns 2 to form a winding unit 3, the length or width of the winding pattern 2 can be reduced, the length of the straight portion 30 located in the fan-out region 201 can be increased, and the number of bends in the traces can be further reduced.

[0041] At least two parallel winding patterns 2 arranged along the same trajectory and interlocked with each other constitute a winding unit 3, which improves the equal resistance wiring effect of each trace 1 transmitting the same type of signal to the pixel driving circuit. The improved equal resistance wiring effect makes the current flow path in each trace 1 transmitting the same type of signal to the pixel driving circuit as similar as possible, thus improving the display effect of the display panel 100.

[0042] It should be noted that, Figure 2 The example shown is of the winding unit located in the fan-out area 201. The winding unit can be set in other locations outside the display area as needed, without any limitation.

[0043] The display panel provided in this embodiment of the invention includes a winding pattern located in the fan-out area for the wiring. The same winding unit includes at least two parallel windings along the same trajectory, and adjacent winding patterns are interlocked. This facilitates setting the straight segments of the winding patterns that are parallel along the same trajectory to be longer, reducing the number of bends in the wiring, thereby increasing the wiring resistance and reducing the resistance difference between wirings that transmit the same type of signal to the pixel driving circuit. This makes the current flow path in each wiring that transmits the same type of signal to the pixel driving circuit as similar as possible, improving the display effect of the display panel.

[0044] Optionally, Figure 3 This is a schematic diagram of another display panel provided in an embodiment of the present invention. Based on the above embodiments, see... Figure 3 The same winding unit 3 of the display panel 100 provided in this embodiment of the invention may include a winding pattern 2 of at least two adjacent traces 1 wound in parallel along the same trajectory; each trace 1 has the same line resistance.

[0045] Specifically, by winding the winding patterns 2 of adjacent traces 1 in parallel, the distance between adjacent winding patterns 2 can be further reduced. The parallel winding of adjacent winding patterns 2 is more compact, providing sufficient space to extend the length of the straight edges of the winding patterns 2. This arrangement further reduces the number of bends in each of the parallel winding patterns 2. Since the bends caused by the photolithography process are arcs, the fewer the number of arc-shaped bends, the more consistent the current flow path of each trace 1, reducing the resistance difference between traces 1. Setting the line resistance of each trace 1 to be the same ensures that the current flow path in each trace transmitting the same signal to the pixel driving circuit is as consistent as possible, further improving the display effect of the display panel.

[0046] It should be noted that, Figure 3 This illustration is merely an example of three adjacent wires running in parallel, and is not intended to be limiting.

[0047] Optionally, Figure 4 This is a schematic diagram of another display panel provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of another display panel provided in an embodiment of the present invention. Based on the above embodiments, see... Figure 4 In the display panel 100 provided in this embodiment of the invention, along the Y direction, the length L1 of the winding unit 3 is greater than or equal to the length L2 of the winding pattern 2, and along the X direction, the width W1 of the winding unit 3 is greater than or equal to the width W2 of the winding pattern 2. The Y direction can be the direction from the display area 10 to the fan-out area 201, and the X direction is perpendicular to the Y direction. Preferably, the figure schematically shows the Y direction as the direction vertically pointing from the display area 10 to the fan-out area 201.

[0048] Specifically, at least two winding patterns 2 are wound in parallel. The number of winding patterns 2 in parallel can be greater than or equal to 2 and less than or equal to 100.

[0049] See Figure 4 , Figure 4An exemplary illustration shows the winding pattern 2 wound along the X direction. Along the X direction, the width W1 of the winding unit 3 formed by multiple parallel windings is greater than the width W2 of a single winding pattern 2 within that winding unit 3. Along the Y direction, the length L1 of the winding unit 3 formed by multiple parallel windings is greater than the length L2 of the winding pattern 2. However, the length L1 of the winding unit 3 formed by multiple parallel windings is much smaller than the sum of the lengths L2 of each winding pattern 2 within that winding unit 3, and the width W1 of the winding unit 3 formed by multiple parallel windings is much smaller than the sum of the widths W2 of each winding pattern 2 within that winding unit 3. This arrangement allows the winding unit 3 formed by multiple parallel windings more space for straight-line winding, further reducing the number of bends in each winding pattern 2. On the other hand, the routing along the Y direction in the fan-out region includes the winding pattern and the straight section. Along the X direction, the width W1 of the winding unit 3 formed by multiple parallel windings is greater than the width W2 of a single winding pattern 2 within that winding unit 3. Along the Y-direction, the length L1 of the winding unit 3 formed by multiple parallel windings is greater than the length L2 of the winding pattern 2. This arrangement reduces the length of the winding pattern 2 along the Y-direction, thereby increasing the length of the straight portion in the fan-out region along the Y-direction, further reducing the number of bends in each winding pattern 2, and improving the display effect of the display panel. It should be noted that... Figure 4 The example shown is a case where the length L1 of the winding unit 3 is greater than the length L2 of the winding pattern 2, and the width W1 of the winding unit 3 is greater than the width W2 of the winding pattern 2, without any limitation.

[0050] See Figure 5 , Figure 5An exemplary illustration shows the winding pattern 2 wound along the Y direction. Along the X direction, the width W1 of the winding unit 3 formed by multiple parallel windings is greater than the width W2 of a single winding pattern 2 within that winding unit 3. Along the Y direction, the length L1 of the winding unit 3 formed by multiple parallel windings is greater than the length L2 of the winding pattern 2. However, the length L1 of the winding unit 3 formed by multiple parallel windings is much smaller than the sum of the lengths L2 of each winding pattern 2 within that winding unit 3, and the width W1 of the winding unit 3 formed by multiple parallel windings is much smaller than the sum of the widths W2 of each winding pattern 2 within that winding unit 3. This arrangement allows the winding unit 3 formed by multiple parallel windings more space for straight-line winding, further reducing the number of bends in each winding pattern 2. On the other hand, the routing along the X direction in the fan-out area includes the winding pattern and the straight section. Along the X direction, the width W1 of the winding unit 3 formed by multiple parallel windings is greater than the width W2 of a single winding pattern 2 within that winding unit 3. Along the Y-direction, the length L1 of the winding unit 3 formed by multiple parallel windings is greater than the length L2 of the winding pattern 2. This arrangement reduces the length of the winding pattern 2 along the X-direction, thereby increasing the length of the straight portion in the fan-out region along the Y-direction, further reducing the number of bends in each winding pattern 2, and improving the display effect of the display panel. It should be noted that... Figure 5 An example is shown where the length L1 of the winding unit 3 is equal to the length L2 of the winding pattern 2, and the width W1 of the winding unit 3 is greater than the width W2 of the winding pattern 2. No limitation is made here.

[0051] An alternative implementation method, see [link to implementation details]. Figure 5 When the winding pattern 2 is wound along the Y direction, if the winding pattern 2 is only a U-shaped winding pattern, along the Y direction, the length L1 of the winding unit 3 is less than or equal to the length L2 of the winding pattern 2; along the X direction, the width W1 of the winding unit 3 is greater than or equal to the width W2 of the winding pattern 2.

[0052] Optionally, Figure 6 This is a schematic diagram of another display panel provided in an embodiment of the present invention. Based on the above embodiments, see... Figure 6 In this embodiment of the invention, the winding patterns 2 of adjacent traces 1 of the display panel 100 are arranged in different layers; the winding patterns 2 of two adjacent traces 1 are staggered.

[0053] Specifically, since a certain insulation distance is required between adjacent traces 1, the winding patterns 2 of adjacent traces 1 that are wound in parallel are set in different layers. On the one hand, this ensures a better insulation distance between adjacent traces 1, reduces interference in the transmitted signals in the traces 1, and lowers the risk of short circuits caused by the close proximity of adjacent traces 1. On the other hand, the horizontal distance between the winding patterns 2 of adjacent traces 1 set in different layers can be made smaller. With a constant width of the display panel 100, the wiring space of the straight edge of the winding pattern 2 can be further increased. With the same trace length, the number of bends can be further reduced, making the current flow path in each trace 1 that transmits the same type of signal to the pixel driving circuit as similar as possible, thus improving the display effect of the display panel.

[0054] The winding patterns 2 of two adjacent traces 1 are staggered to reduce the coupling capacitance between adjacent traces, reduce the interference between transmitted signals between adjacent traces, and further improve the display effect of the display panel.

[0055] Optionally, based on the above embodiments, see below. Figure 4 The winding pattern 2 of the display panel 100 provided in this embodiment of the invention includes: at least two first wiring portions 21, which extend along the X direction; at least one second wiring portion 22, which extends along the Y direction; adjacent first wiring portions 21 are connected end to end through the second wiring portion 22; and a bending angle is formed between adjacent first wiring portions 21 and second wiring portions 22.

[0056] Specifically, adjacent first trace sections 21 extend in the same direction, facilitating wiring and simplifying the process. Adjacent first trace sections 21 are connected end-to-end via second trace sections 22, forming a bend between adjacent first trace sections 21 and second trace sections 22, which facilitates the formation of the winding pattern 2. The first trace section 21 can be straight or curved, and the second trace section 22 can also be straight or curved. This arrangement effectively increases the length of the trace 1, thereby increasing its resistance.

[0057] Optionally, the trace width ranges from 0.5μm to 5μm. The length of the first trace portion 21 ranges from 1μm to 500μm. The length of the second trace portion 22 ranges from 1μm to 100μm. This arrangement facilitates trace layout while meeting signal transmission requirements.

[0058] Optionally, based on the above embodiments, further combinations are made... Figure 4 and Figure 5 In the embodiment of the present invention, the first wiring portion 21 and the second wiring portion 22 of the same winding pattern 2 of the display panel 100 are perpendicular to each other; the first wiring portion 21 and the second wiring portion 22 of the same winding pattern 2 are arranged in the same layer or in different layers.

[0059] Specifically, since the first wiring portion 21 and the second wiring portion 22 are connected, and the first wiring portion 21 and the second wiring portion 22 of the same winding pattern 2 are perpendicular to each other, the current flow path is made as long as possible, which can reduce the resistance loss at the bending angle where the first wiring portion 21 and the second wiring portion 22 are connected, and the resistance difference between each winding pattern 2 is small. Setting the first wiring portion 21 and the second wiring portion 22 of the same winding pattern 2 on the same layer can facilitate wiring, and setting the same wiring on the same layer simplifies the process and makes manufacturing easier. Setting the first wiring portion 21 and the second wiring portion 22 of the same winding pattern 2 on different layers, so that adjacent first wiring portions 21 are connected by second wiring portions 22 that cross over to the other layer. This arrangement can further increase the length of the second wiring portion 22, thereby increasing the wire resistance.

[0060] It should be noted that, Figure 4 and Figure 5 The first routing portion 21 and the second routing portion 22 of the same winding pattern 2 are shown with the same fill color, without any limitation.

[0061] Optionally, based on the above embodiments, further combinations are made... Figure 4 and Figure 5 In the embodiment of the present invention, the first wiring portions 21 of each winding pattern 2 of the winding unit 3 of the display panel 100 are parallel to each other; the second wiring portions 22 of each winding pattern 2 of the winding unit 3 are parallel to each other.

[0062] Specifically, this arrangement allows the winding patterns 2 of the winding unit 3 to be wound in parallel, and the distance between the parallel first routing portions 21 can be made smaller, further saving space occupied by the winding unit 3. The distance between the parallel second routing portions 22 can also be made smaller, so that the distance between the winding patterns 2 of adjacent routing 1 is the same and small, further saving space in the winding unit 3 and facilitating the increase of the length of the straight segment. On the other hand, setting the first routing portions 21 of each winding pattern 2 of the winding unit 3 to be parallel and the second routing portions 22 of each winding pattern 2 of the winding unit 3 to be parallel simplifies the process and reduces manufacturing costs.

[0063] Alternatively, based on the above embodiments, see... Figure 4 In the embodiment of the present invention, the length of the first wiring portion 21 of the display panel 100 is greater than the length of the second wiring portion 22; the length of the winding pattern 2 along the Y direction is equal to the sum of the lengths of the second wiring portions 22 included therein, and the width of the winding pattern 2 along the X direction is equal to the length of the first wiring portion 21 included therein.

[0064] For details, see Figure 4The length of the first trace 21 is set to be greater than the length of the second trace 22. Lateral winding can be performed along the X direction as needed, meaning the longer first trace 21 is positioned along the width of the display panel 100. During lateral winding, the length of the winding pattern 2 along the Y direction can be L2, which is equal to the sum of the lengths of the second traces 22 it includes. The width of the winding pattern 2 along the X direction can be W2, which is equal to the length of the first trace 21 it includes. This configuration further reduces the number of bends, maximizes the resistance of the winding pattern 2, improves the equal-resistance wiring effect of each trace 1 transmitting the same signal to the pixel driving circuit, and further improves the display effect of the display panel.

[0065] See Figure 5 The length of the first trace 21 can be set to be less than the length of the second trace 22. Vertical winding can also be performed along the Y direction as needed, meaning the longer second trace 22 extends along the Y direction. During vertical winding, the length of the winding pattern 2 along the Y direction can be the length L2 of the winding pattern 2, which is equal to the length of the second trace 22 it includes. The width of the winding pattern 2 along the X direction can be the width W2 of the winding pattern 2, which is equal to the sum of the lengths of the first traces 21 it includes. This configuration can further reduce the number of bends, maximize the resistance of the winding pattern 2, improve the equal resistance wiring effect of each trace 1 transmitting the same signal to the pixel driving circuit, and further improve the display effect of the display panel 100.

[0066] Optionally, based on the above embodiments, the shape of the winding pattern 2 includes at least one of S-shape, bow shape, or serrated shape, without any limitation. Preferably, the bending angle of the winding pattern 2 is a right angle. This can further increase the wire resistance.

[0067] Optionally, based on the above embodiments, see below. Figure 2 Along the X direction, from the middle region of the fan-out region 201 to the edge region of the fan-out region 201, the length of the winding unit 3 gradually decreases along the X direction.

[0068] Specifically, the non-display area 20 of the display panel 100 provided in this embodiment of the invention includes a fan-out area 201 and an integrated circuit bonding area 202. The integrated circuit bonding area 202 is disposed on the side of the fan-out area 201 away from the display area 10. The winding unit 3 is located in the fan-out area 201. The trace 1 extends from the display area 10 to the fan-out area 201 and terminates at the integrated circuit bonding area 202. The traces 1 located in the display area 10 are distributed in a dispersed manner. The traces 1 include data signal lines. The integrated circuit bonding area 202 is used to bond the driver chip. The trace 1 extends from the display area 10 to the fan-out area 201 and terminates at the integrated circuit bonding area 202. The trace 1 is connected to the driver chip in the integrated circuit bonding area 202, and the drive signal of the driver chip is transmitted to the display area 10 through the trace 1. Since the integrated circuit bonding area 202 is narrower than the display area 10, the trace 1 in the middle area adjacent to the fan-out area 201 is closer to the integrated circuit bonding area 202, while the trace 1 in the edge area adjacent to the fan-out area 201 is farther from the integrated circuit bonding area 202. Because the length of the inclined trace 1 that is farther away from the integrated circuit bonding area 202 is larger, the length of the inclined trace 1 that is closer to the integrated circuit bonding area 202 is smaller or zero.

[0069] Along the X direction, from the middle area of ​​the fan-out area 201 to the edge area of ​​the fan-out area 201, the length of the winding unit 3 in the fan-out area 201 gradually decreases along the X direction. This makes the winding pattern 2 closer to the integrated circuit bonding area 202 longer, which makes it easier for the lengths of each trace 1 to be more consistent, and the resistance of each trace 1 to be more consistent, further improving the display effect of the display panel 100.

[0070] The traces 1 located in the display area 10 are distributed to transmit signals to the display panel 100, preventing the traces 1 from blocking the light emitted by the display panel 100 and thus improving the display effect of the display panel 100. The traces 1 include data signal lines, which are used to transmit data signals to the pixel circuit. The data signal lines are configured in the fan-out area 201 with a winding unit 3 consisting of a multi-strand parallel winding pattern 2, so that the resistance of each data signal line of the display panel 100 is as equal as possible, and the data signals transmitted by each data signal line are as consistent as possible. This further improves the uniformity of resistance, which can further improve the display effect of the display panel 100 and solve the vertical mura problem of the display panel 100.

[0071] Figure 7 This is a schematic diagram of a display device provided in an embodiment of the present invention. Based on the above embodiments, [further details are provided]. Figure 7The display device 200 provided in this embodiment includes the display panel 100 proposed in any of the above embodiments, and has the beneficial effects of the display panel 100 proposed in any of the above embodiments, which will not be described again here. The display device 200 includes terminals such as mobile phones, tablet computers, and wearable devices.

[0072] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0073] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A display panel, characterized in that, The display panel includes a fan-out area. Multiple traces, the traces including a winding pattern located in the fan-out area; Multiple winding units located in the fan-out area, each winding unit including at least two winding patterns wound in parallel along the same trajectory, with adjacent winding patterns interlocked with each other; At least two first trace portions, the first trace portions extending along the X direction; At least one second routing section extends along the Y direction, and adjacent first routing sections are connected end to end through the second routing section; A bend angle is formed between the adjacent first wiring portion and the second wiring portion; The length of the first trace is greater than the length of the second trace, and the length of the winding pattern along the Y direction is equal to the sum of the lengths of the second traces it includes; or, The length of the first wiring portion is less than the length of the second wiring portion, and the length of the winding pattern along the Y direction is equal to the length of the second wiring portion it includes.

2. The display panel according to claim 1, characterized in that, The same winding unit includes the winding pattern of at least two adjacent strands wound in parallel along the same trajectory; Each of the aforementioned traces has the same resistance.

3. The display panel according to claim 1, characterized in that, Along the Y direction, the length of the winding unit is greater than or equal to the length of the winding pattern, and along the X direction, the width of the winding unit is greater than or equal to the width of the winding pattern.

4. The display panel according to claim 1, characterized in that, The winding patterns of adjacent traces are arranged in different layers; The winding patterns of two adjacent wirings are staggered.

5. The display panel according to claim 1, characterized in that, The first and second routing portions of the same winding pattern are perpendicular to each other. The first and second routing portions of the same winding pattern are arranged in the same layer or in different layers.

6. The display panel according to claim 1, characterized in that, The first routing portions of each winding pattern of the winding unit are parallel to each other; The second routing portions of each winding pattern in the winding unit are parallel to each other.

7. The display panel according to claim 1, characterized in that, The shape of the winding pattern includes at least one of the following: S-shaped, bow-shaped, or serrated.

8. The display panel according to claim 3, characterized in that, Along the X direction, from the middle region of the fan-out area to the edge region of the fan-out area, the length of the winding unit along the Y direction gradually decreases.

9. A display device, characterized in that, include: The display panel according to any one of claims 1-8.

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