Display panel and display device

Abstract

Embodiments of the present application provide a display panel and a display device, comprising a plurality of sub-pixels, each of which includes a pixel circuit; the display panel further comprising a substrate and a first signal line, the first signal line being electrically connected to the pixel circuit; the first signal line extending along a first direction and comprising a plurality of first portions and a plurality of second portions, the second portions connecting adjacent first portions; along the thickness direction of the display panel, the first portion at least partially overlaps with an area where the pixel circuit is located, and the second portion at least partially overlaps with an area between adjacent pixel circuits; wherein the distances between two adjacent first portions and the substrate are different. In the present application, along the first direction, the same first signal line has an undulating shape. When the display panel is bent, the stress on the undulating first signal line is not excessively concentrated at the bend, thereby reducing the risk of the first signal line breaking at the bend, thereby ensuring the yield of the display panel.

Description

Technical field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. [Background Technology]

[0002] Flexible display screens have the characteristics of being able to be bent arbitrarily and being made of light and thin materials. With the development of flexible display screen technology, flexible display screen devices have become the mainstream devices in the current display technology field.

[0003] To ensure proper display performance, flexible displays contain numerous continuous metal traces. In existing technologies, these traces are typically arranged in a flat layer. When a flexible display bends, stress concentrates at the bend, making the traces susceptible to breakage, thus affecting the display's performance.

[0004] Application Contents

[0005] In view of this, embodiments of the present application provide a display panel and a display device to solve the above problems.

[0006] An embodiment of the present application provides a display panel, comprising a plurality of sub-pixels, each of which includes a pixel circuit; the display panel also includes a base substrate and a first signal line, the first signal line is electrically connected to the pixel circuit, the first signal line extends along a first direction, and the first signal line includes a plurality of first parts and a plurality of second parts; the plurality of first parts are arranged along the first direction, and the second parts connect adjacent first parts; along the thickness direction of the display panel, the first part at least partially overlaps with the area where the pixel circuit is located, and the second part at least partially overlaps with the area between adjacent pixel circuits; wherein, of two adjacent first parts of the same first signal line, along the thickness direction of the display panel, one first part is located on the side of the other first part closer to the base substrate.

[0007] In an implementation manner of the first aspect, an angle between the second portion and the adjacent first portion is θ, where 15°≤θ≤60°.

[0008] In an implementation of the first aspect, the display panel also includes an insulating layer, which is located between the first signal line and the base substrate, and the insulating layer includes two first units corresponding to two adjacent first parts of the same first signal line; wherein, among the two first units corresponding to the two adjacent first parts, the height of one first unit is different from the height of the other first unit.

[0009] In an implementation of the first aspect, the insulating layer includes a first sub-insulating layer and a second sub-insulating layer, the first sub-insulating layer includes two first sub-units corresponding to the two adjacent first parts respectively, and the second sub-insulating layer includes two second sub-units corresponding to the two adjacent first parts respectively; wherein, among the two first sub-units corresponding to the two adjacent first parts, the height of one first sub-unit is different from the height of the other first sub-unit; and among the two second sub-units corresponding to the two adjacent first parts, the height of one second sub-unit is different from the height of the other second sub-unit.

[0010] In an implementation of the first aspect, along the first direction, multiple sub-pixels are repeatedly arranged according to a first repeating unit, and the first repeating unit includes at least three sub-pixels; the first part and the second part of the first signal line are arranged along the first direction according to a second repeating unit, and the second repeating unit includes at least three first parts; wherein the second repeating unit and the first repeating unit are arranged in a one-to-one correspondence, and along the thickness direction of the display panel, the pixel circuits in the second repeating unit and the corresponding first repeating unit at least partially overlap.

[0011] In an implementation of the first aspect, along the first direction, multiple sub-pixels are repeatedly arranged according to a first repeating unit, and the first repeating unit includes at least three sub-pixels; the first part and the second part of the first signal line are arranged along the first direction according to a second repeating unit, and the second repeating unit includes at least three first parts; wherein the second repeating unit is arranged in a one-to-one correspondence with at least two first repeating units, and along the thickness direction of the display panel, the pixel circuits in the second repeating unit and the corresponding first repeating unit at least partially overlap.

[0012] In an implementation of the first aspect, in the corresponding first repeating unit and the second repeating unit, the first portion and the pixel circuit in the sub-pixel are arranged in a one-to-one correspondence.

[0013] In an implementation manner of the first aspect, along the first direction, a maximum distance between the at least three first portions in the second repeating unit and the base substrate gradually increases or gradually decreases.

[0014] In an implementation of the first aspect, along the first direction, at least three first parts in the second repeating unit are symmetrically distributed about the first symmetry axis, and the first symmetry axis is parallel to the thickness direction of the display panel; wherein, in the second repeating unit, the maximum distance between the two mutually symmetrical first parts and the base substrate is equal.

[0015] In an implementation of the first aspect, along the thickness direction of the display panel, in a portion of the insulating layer covered by a second repeating unit, the maximum height of the insulating layer is H1, and the minimum height of the insulating layer is H2; wherein H2≤H1≤10*H2.

[0016] In an implementation of the first aspect, the first signal line includes at least one of a scan signal line, a data signal line, a power supply voltage signal line, a reset signal line, and a transistor active layer.

[0017] In an implementation of the first aspect, the sub-pixel further includes a light-emitting device; the light-emitting device is arranged on a side of the film layer where the first signal line is located away from the base substrate, and the distance between each light-emitting device in the multiple sub-pixels and the base substrate is equal.

[0018] In an implementation of the first aspect, the display panel further includes a second signal line, the first signal line and the second signal line are located in the same film layer, and the second signal line and the first signal line extend in the same direction; among the second signal line and the first signal line that are adjacent to each other, the second signal line includes a third portion that is adjacent to the first portion along the second direction;

[0019] Among them, in the first portion and the third portion arranged adjacent to each other along the second direction, along the thickness direction of the display panel, the first portion is located on a side of the third portion close to the base substrate or on a side away from the base substrate.

[0020] In a second aspect, an embodiment of the present application provides a display device, comprising the display panel provided in the first aspect.

[0021] In the present application, the same first signal line exhibits an undulating shape along a first direction. When the display panel is bent, the stress on the undulating first signal line is not excessively concentrated at the bend, thereby reducing the risk of the first signal line breaking at the bend and thereby ensuring the yield of the display panel. Furthermore, because adjacent first portions of the first signal line are at different distances from the substrate, the distance between adjacent first portions along the first direction can be set to be smaller. Furthermore, because the first portions are arranged corresponding to sub-pixels, the present application facilitates reducing the distance between adjacent sub-pixels, thereby increasing the sub-pixel density in the display panel and, in turn, improving the display quality of the display panel.

Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A schematic diagram of a display panel provided in an embodiment of the present application;

[0024] Figure 2A schematic structural diagram of a display panel provided in an embodiment of the present application;

[0025] Figure 3 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0026] Figure 4 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0027] Figure 5 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0028] Figure 6 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0029] Figure 7 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0030] Figure 8 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0031] Figure 9 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0032] Figure 10 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0033] Figure 11 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0034] Figure 12 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0035] Figure 13 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0036] Figure 14 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0037] Figure 15 A schematic diagram of a display device provided in an embodiment of the present application. [Specific implementation method]

[0038] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0039] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0041] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0042] In the description of this specification, it is necessary to understand that the words "substantially", "approximately", "approximately", "about", "roughly", "generally" and the like described in the claims and embodiments of this application refer to what can be generally recognized within a reasonable process operation range or tolerance range, rather than an exact value.

[0043] It should be understood that although the terms "first," "second," and the like may be used in embodiments of the present application to describe directions, parts, signal lines, and the like, these directions, parts, signal lines, and the like should not be limited to these terms. These terms are merely used to distinguish directions, parts, signal lines, and the like from one another. For example, a first part may also be referred to as a second part, and similarly, a second part may also be referred to as a first part, without departing from the scope of the embodiments of the present application.

[0044] The applicant in this case has provided a solution to the problems existing in the prior art through careful and in-depth research.

[0045] Figure 1 A schematic diagram of a display panel provided in an embodiment of the present application is shown. Figure 2 A schematic structural diagram of a display panel provided in an embodiment of the present application is shown in FIG. Figure 3 A schematic structural diagram of another display panel provided in an embodiment of the present application.

[0046] The embodiment of the present application provides a display panel 001, combined with Figure 1 and Figure 2 、 Figure 1 and Figure 3The display panel 001 includes a plurality of sub-pixels 10, each of which includes a pixel circuit 11 and a light-emitting device 12. The display panel 001 also includes a base substrate 20 and a first signal line 30, which is electrically connected to the pixel circuit 11. It is understood that the first signal line 30 may be a signal line that provides an electrical signal to the pixel circuit 11, or the first signal line 30 may be a continuous semiconductor layer in the plurality of pixel circuits 11.

[0047] Optionally, the first signal line 30 includes at least one of a scan signal line, a data signal line, a power supply voltage signal line, a reset signal line, and a transistor active layer.

[0048] The first signal line 30 extends along the first direction X and includes a plurality of first portions 31 and a plurality of second portions 32. The plurality of first portions 31 are arranged along the first direction X, and the second portions 32 connect adjacent first portions 31. Along the thickness direction of the display panel 001, the first portions 31 at least partially overlap with the region where the pixel circuits 11 are located, and the second portions 32 at least partially overlap with the region between adjacent pixel circuits 11. In other words, along the thickness direction of the display panel 001, the first portions 31 are at least partially covered by the region where the pixel circuits 11 are located, and the second portions 32 are at least partially covered by the region between adjacent pixel circuits 11.

[0049] It should be noted that, along the thickness direction of the display panel 001, when the pixel circuit 11 in the sub-pixel 10 overlaps with the light-emitting device 12, the first part 31 can also at least partially overlap with the area where the light-emitting device 12 is located, and the second part 32 can also at least partially overlap with the area between adjacent light-emitting devices 12.

[0050] Among the two adjacent first portions 31 of the same first signal line 30, along the thickness direction of the display panel 001, one first portion 31 is located on the side of the other first portion 31 closer to the base substrate 20. In other words, the maximum distance between one first portion 31 and the base substrate 20 is not equal to the maximum distance between the other first portion 31 and the base substrate 20.

[0051] In the present application, the same first signal line 30 has an undulating shape along the first direction X. When the display panel 001 is bent, the stress on the undulating first signal line 30 is not excessively concentrated at the bend, thereby reducing the risk of the first signal line 30 breaking at the bend, thereby ensuring the yield of the display panel 001. At the same time, because the distances between adjacent first portions 31 of the first signal line 30 and the base substrate 20 are different, the distance between adjacent first portions 31 along the first direction X can be set to be smaller. Since the first portions 31 are arranged corresponding to the sub-pixels 10, the present application facilitates reducing the distance between adjacent sub-pixels 10, thereby increasing the density of sub-pixels 10 in the display panel 10 and improving the display effect of the display panel 10.

[0052] In one embodiment of this application, please continue to refer to Figure 2 and Figure 3 The angle between the second portion 32 and the adjacent first portion is θ, where 15°≤θ≤60°. That is, the first signal line 30 between the adjacent first portions 31 has a gentle slope.

[0053] It is understandable that, along the first direction X, ie, the extending direction of the first signal line 30 , in one cycle of the same first signal line 30 , the distance between adjacent first portions 31 and the base substrate 20 may gradually increase or decrease.

[0054] In the embodiment of the present application, the slope of the first signal line 30 between adjacent first portions 31 is relatively gentle, which helps to improve the manufacturing yield of the first signal line 30 and prevent the first signal line 30 from being broken between adjacent first portions 31 .

[0055] Please continue to refer to Figure 2 and Figure 3 In one embodiment of the present application, the display panel 001 further includes an insulating layer 40, which is located between the first signal line 30 and the base substrate 20. The insulating layer 40 includes two first units 41 corresponding to two adjacent first portions 31 of the same first signal line 30. It will be understood that along the thickness direction of the display panel 001, the first portion 31 and the first unit 41 at least partially overlap.

[0056] Among the two first units 41 corresponding to the two adjacent first portions 31 , a height H of one first unit 41 is different from a height H of the other first unit 41 .

[0057] It is understood that the first unit 41 is located between the first portion 31 and the base substrate 20. In the embodiment of the present application, the height H of one first unit 41 can be set to be different from the height H of the other first unit 41, so that in two adjacent first portions 31, along the thickness direction of the display panel 001, one first portion 31 is located on the side of the other first portion 31 closer to the base substrate.

[0058] Figure 4 A schematic structural diagram of another display panel provided in an embodiment of the present application.

[0059] like Figure 4 As shown, in one embodiment of the present application, the insulating layer 40 includes a first sub-insulating layer 40A and a second sub-insulating layer 40B, the first sub-insulating layer 40A includes two first sub-units 41A corresponding to two adjacent first parts 31, and the second sub-insulating layer 40B includes two second sub-units 41B corresponding to two adjacent first parts 31.

[0060] It can be understood that, along the thickness direction of the display panel 001 , the first sub-insulating layer 40A and the second sub-insulating layer 40B are stacked, and the first portion 31 at least partially overlaps with the first sub-unit 41A and the second sub-unit 41B.

[0061] It should be noted that the first sub-insulating layer 40A and the second sub-insulating layer 40B may be in direct contact with each other, or other film layers may be included between the first sub-insulating layer 40A and the second sub-insulating layer 40B.

[0062] Among them, among the two first sub-units 41A corresponding to the two adjacent first parts 31, the height HA of one first sub-unit 41A is different from the height HA of the other first sub-unit 41A, and among the two second sub-units 41B corresponding to the two adjacent first parts 31, the height HB of one second sub-unit 41B is different from the height HB of the other second sub-unit 41B.

[0063] It can be understood that in two adjacent first parts 31, along the thickness direction of the display panel 001, the sum of the heights of the first subunit 41A and the second subunit 41B overlapping with one first part 31 is different from the sum of the heights of the first subunit 41A and the second subunit 41B overlapping with the other first part 31.

[0064] Optionally, the height HA of the first subunit 41A and the height HB of the second subunit 41B overlapping one first portion 31 are both greater than the height HA of the first subunit 41A and the height HB of the second subunit 41B overlapping another first portion 31 .

[0065] In the embodiment of the present application, by setting the first subunit 41A and the second subunit 41B to different heights, the distances between the two adjacent first portions 31 and the base substrate 20 are different. This embodiment of the present application helps to reduce the difficulty of setting the thickness of the insulating layer 40, thereby reducing the difficulty of the process.

[0066] It should be noted that the insulating layer 40 may further include a third sub-insulating layer, which includes third sub-units corresponding to two adjacent first portions 31. Along the thickness direction of the display panel 001, the first portions 31 and the third sub-units at least partially overlap. If the heights of the two adjacent first sub-units 40A are different, and the heights of the two adjacent second sub-units 40B are different, the heights of the two adjacent third sub-units are also different.

[0067] Optionally, in two adjacent first parts 31 , the heights of the first subunit 41A, the second subunit 41B and the third subunit overlapping with one first part 31 are all greater than the heights of the first subunit 41A, the second subunit 41B and the third subunit overlapping with the other first part 31 .

[0068] Furthermore, the insulating layer 40 may include at least four sub-insulating layers, and by setting the thickness of the at least four sub-insulating layers, different distances between two adjacent first portions 31 and the base substrate 20 can be achieved, thereby further reducing the difficulty of setting the thickness of the insulating layer 40 .

[0069] Figure 5 This is a structural diagram of another display panel provided in an embodiment of the present application. Figure 6 A schematic structural diagram of another display panel provided in an embodiment of the present application.

[0070] In one embodiment of this application, please combine Figure 1 and Figure 5 、 Figure 6 Along the first direction X, multiple sub-pixels 10 are repeatedly arranged according to a first repeating unit 10A, and the first repeating unit 10A includes at least three sub-pixels 10. It is understood that a pixel may include three sub-pixels 10 of different colors. Optionally, the three sub-pixels 10 of different colors are red, blue, and green. In the present application, the at least three sub-pixels 10 included in the first repeating unit 10A can form at least one pixel, that is, the first repeating unit 10A can include at least one pixel.

[0071] The first portion 31 and the second portion 32 of the first signal line 30 are arranged along the first direction X according to the second repeating unit 30A. The second repeating unit 30A includes at least three first portions 31. It is understood that the second repeating unit 30A also includes at least two second portions 32.

[0072] The second repeating unit 30A is arranged corresponding to the first repeating unit 10A. Furthermore, along the thickness direction of the display panel 001, the second repeating unit 30A at least partially overlaps with the pixel circuits 11 in the corresponding first repeating unit 10A. It should be noted that the first portion 31 in the second repeating unit 30A at least partially overlaps with the area where the pixel circuits 11 in the corresponding first repeating unit 10A are located; and the second portion 32 in the second repeating unit 30A at least partially overlaps with the area between adjacent pixel circuits 11 in the corresponding first repeating unit 10A.

[0073] In the embodiment of the present application, the second repeating unit 30A is arranged corresponding to the first repeating unit 10A, that is, the arrangement of the first portion 31 in the first signal line 30 is arranged corresponding to the arrangement of the sub-pixels 10. Since the sub-pixels in the first repeating unit 10A can form at least one pixel, the second repeating unit 30A can be arranged corresponding to at least one pixel.

[0074] In one implementation of the embodiment of the present application, Figure 5 As shown, the second repeating units 30A and the first repeating units 10A are arranged in a one-to-one correspondence, that is, one second repeating unit 30A corresponds to one first repeating unit 10A.

[0075] In another implementation of the embodiment of the present application, Figure 6 As shown, the second repeating unit 30A is arranged in a one-to-one correspondence with at least two first repeating units 10A, that is, one second repeating unit 30A corresponds to at least two first repeating units 10A.

[0076] In the present application, the setting of the second repeating unit 30A is beneficial to the regular arrangement of the first part 31 in the first signal line 30, which is beneficial to simplifying the preparation process of the first signal line 30, reducing the difficulty of preparing the first signal line 30, and thus saving the preparation cost of the display panel 001.

[0077] Figure 7 A schematic structural diagram of another display panel provided in an embodiment of the present application.

[0078] In one embodiment of the present application, Figure 1 and Figure 7 The display panel 001 further includes a pixel 50 , and the pixel 50 includes a plurality of sub-pixels 10 . Along the first direction X, two adjacent pixels 50 include the same sub-pixel 10 .

[0079] It can be understood that, since the sub-pixel 10 includes the light-emitting device 12 , along the first direction X, two adjacent pixels 50 include the same light-emitting device 12 .

[0080] Optionally, the plurality of sub-pixels 10 include a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. It can be understood that the first color sub-pixel includes a first color light-emitting device 13, the second color sub-pixel includes a second color light-emitting device 14, and the third color sub-pixel includes a third color light-emitting device 15. A pixel 50 includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel, that is, a pixel 50 includes a first color light-emitting device 13, a second color light-emitting device 14, and a third color light-emitting device 15.

[0081] The two adjacent pixels 50 both include the same first color sub-pixel, that is, the two adjacent pixels 50 both include the same first color light emitting device 13. Furthermore, the first color light emitting device 13 may be a blue light emitting device.

[0082] In the embodiment of the present application, two adjacent pixels 50 share the same first color sub-pixel, so the opening area of ​​the first color sub-pixel can be set larger. Optionally, the opening area of ​​the first color sub-pixel is twice the opening area of ​​the second color sub-pixel.

[0083] The embodiment of the present application is helpful in improving the aperture ratio of the first color sub-pixel. At the same time, since two adjacent pixels 50 share the same first color sub-pixel, it is helpful in improving the pixel density of the display panel 001.

[0084] Please combine Figure 1 and Figure 7 In one embodiment of the present application, along a first direction X, a plurality of sub-pixels 10 are repeatedly arranged according to a first repeating unit 10A. The first repeating unit 10A includes five sub-pixels 10. The five sub-pixels 10 form two pixels 50, and both pixels 50 include the same sub-pixel 10.

[0085] The first portion 31 and the second portion 32 of the first signal line 30 are arranged in a second repeating unit 30A along the first direction X. The second repeating unit 30A includes five first portions 31 . It is understood that the second repeating unit 30A also includes four second portions 32 .

[0086] The second repeating units 30A are arranged in a one-to-one correspondence with the first repeating units 10A, and along the thickness direction of the display panel 001 , the second repeating units 30A at least partially overlap with the pixel circuits 11 in the corresponding first repeating units 10A.

[0087] In the present application, the provision of the first repeating unit 10A facilitates improving the pixel density of the display panel 001. The second repeating unit 30A is provided in a one-to-one correspondence with the first repeating unit 10A, and the first signal lines 30 in the second repeating unit 30A are arranged in an undulating pattern along the first direction X, which further facilitates improving the pixel density of the display panel 001. Furthermore, the provision of the second repeating unit 30A facilitates the regular arrangement of the first portions 31 of the first signal lines 30, which facilitates simplifying the fabrication process of the first signal lines 30, reducing the difficulty in fabricating the first signal lines 30, and thereby saving the fabrication cost of the display panel 001.

[0088] In one embodiment of this application, please continue to combine Figure 1 and Figure 5 、 Figure 6 and Figure 7 In the corresponding first repeating unit 10A and the second repeating unit 30A, the first portion 31 is disposed in a one-to-one correspondence with the pixel circuit 11 in the sub-pixel 10. This ensures that the first portion 31 is disposed in correspondence with the sub-pixel 10, thereby facilitating a reduction in the distance between adjacent sub-pixels 10 in the first repeating unit 10A, thereby facilitating an increase in the density of the sub-pixels 10 in the display panel 001.

[0089] Figure 8 A schematic structural diagram of another display panel provided in an embodiment of the present application.

[0090] In one embodiment of the present application, along the first direction X, the maximum distance between the at least three first portions 31 in the second repeating unit 30A and the base substrate 20 gradually increases or decreases.

[0091] Alternatively, as Figure 5 and Figure 6 As shown, along the first direction X, the maximum distance between the at least three first portions 31 in the second repeating unit 30A and the base substrate 20 gradually increases.

[0092] Alternatively, as Figure 8 As shown, along the first direction X, the maximum distance between the at least three first portions 31 in the second repeating unit 30A and the base substrate 20 gradually decreases.

[0093] Figure 9 This is a structural diagram of another display panel provided in an embodiment of the present application. Figure 10 This is a structural diagram of another display panel provided in an embodiment of the present application. Figure 11 A schematic structural diagram of another display panel provided in an embodiment of the present application.

[0094] In one embodiment of the present application, Figure 7 、 Figure 9 、 Figure 10and Figure 11 As shown, along the first direction X, at least three first portions 31 in the second repeating unit 30A are symmetrically distributed about the first symmetry axis M, and the first symmetry axis M is parallel to the thickness direction of the display panel 001 .

[0095] In the second repeating unit 30A, the maximum distances between the two symmetrical first portions 31 and the base substrate 20 are equal.

[0096] It can be understood that the second repeating unit 30A includes at least two first parts 31 distributed about the first symmetry axis M, and the maximum distance between the two first parts 31 and the substrate 20 can be made equal by setting the thickness of the insulating layer between the two first parts 31 and the substrate 20 to be the same.

[0097] The embodiment of the present application is conducive to simplifying the configuration of the first portion 31 in the second repeating unit 30A, thereby simplifying the configuration of the second repeating unit 30A, further reducing the difficulty of preparing the first signal line 30, and saving the preparation cost of the display panel 001.

[0098] In one embodiment of this application, please continue to refer to Figure 5 Along the thickness direction of the display panel 001, within the portion of the insulating layer 40 covered by a second repeating unit 30A, the maximum height of the insulating layer 40 is H1, and the minimum height of the insulating layer 40 is H2, where H2 ≤ H1 ≤ 10*H2. In other words, within the portion of the insulating layer 40 covered by a second repeating unit 30A, the maximum height H1 of the insulating layer 40 is 1 to 10 times the minimum height H2.

[0099] In the present application, the distance between the first portion 31 in the second repeating unit 30A and the base substrate 20 can be set by setting the height of the portion of the insulating layer 40 covered by a second repeating unit 30A. In the embodiment of the present application, the maximum height H1 and the minimum height H2 of the portion of the insulating layer 40 covered by a second repeating unit 30A are set to a small multiple relationship, which reduces the difficulty of setting different heights in the portion of the insulating layer 40 covered by a second repeating unit 30A, while ensuring that the first signal line 30 between adjacent first portions 31 in the second repeating unit 30A has a gentle slope.

[0100] Figure 12 A schematic structural diagram of another display panel provided in an embodiment of the present application.

[0101] like Figure 12As shown, in one embodiment of the present application, the sub-pixel 10 further includes a light-emitting device 12, which is disposed on a side of the film layer where the first signal line 30 is located that is away from the base substrate 20, and the distances between each light-emitting device 12 and the base substrate 20 in the plurality of sub-pixels 10 are equal. In other words, the light-emitting device 12 is located on a side of the film layer where the first signal line 30 is located that is close to the light-emitting surface of the display panel 001.

[0102] It is understandable that if Figure 12 As shown, the display panel 001 also includes a planarization layer 60, which is located between the film layer where the first signal line 30 is located and the light-emitting device 12. When the distances between the first parts 31 corresponding to the plurality of sub-pixels 10 and the base substrate 20 are different, the distances between the light-emitting devices 12 in the plurality of sub-pixels 10 and the base substrate 20 can be made equal by setting the planarization layer 60.

[0103] The embodiment of the present application avoids the problem of uneven display of multiple light-emitting devices 12 due to the ups and downs of the first signal line 30. At the same time, since the light-emitting devices 12 are usually manufactured using an evaporation process, the planarization layer 60 is used to level the area where each sub-pixel 10 is located, which facilitates the manufacture of the light-emitting devices 12.

[0104] It should be noted that the portion where the first portion 31 of the first signal line 30 overlaps with the area where the sub-pixel 10 is located is flat, thereby further avoiding the problem of uneven display of the multiple light-emitting devices 12 due to the ups and downs of the first signal line 30 .

[0105] Figure 13 This is a structural diagram of another display panel provided in an embodiment of the present application. Figure 14 A schematic structural diagram of another display panel provided in an embodiment of the present application.

[0106] In one embodiment of the present application, Figure 13 and Figure 14 As shown, the display panel 001 further includes a second signal line 70. The first signal line 30 is located in the same film layer as the second signal line 70, and the second signal line 70 extends in the same direction as the first signal line 30. That is, the second signal line 70 also extends along the first direction X.

[0107] In the adjacent second signal line 70 and first signal line 30 , the second signal line 70 includes a third portion 71 adjacent to the first portion 31 along the second direction Y. In other words, the first portion 31 and the adjacent third portion 71 of the first signal line 30 are arranged along the second direction Y.

[0108] Among the first portion 31 and the third portion 71 arranged adjacent to each other along the second direction Y, along the thickness direction of the display panel 001, the first portion 31 is located on a side of the third portion 71 close to the base substrate 20, or on a side away from the base substrate 20. That is, the distance between the first portion 31 and the base substrate 20 is smaller than the distance between the third portion 71 and the base substrate 20, or the distance between the first portion 31 and the base substrate 20 is greater than the distance between the third portion 71 and the base substrate 20.

[0109] In the embodiment of the present application, in adjacent first portions 31 and third portions 71, the distance between the first portion 31 and the base substrate 20 is different from the distance between the third portion 71 and the base substrate 20. Therefore, along the second direction Y, the distance between the adjacent first portions 31 and third portions 71 can be set to be smaller, that is, the spacing between the first signal line 30 and the second signal line 70 can be reduced. This is beneficial for improving the space utilization of the display panel 001. Moreover, without reducing the spacing between the first signal line 30 and the second signal line 70, the line widths of the first signal line 30 and the second signal line 70 can be appropriately increased, thereby reducing the resistance of the first signal line 30 and the second signal line 70 and improving the quality of the signals transmitted by the first signal line 30 and the second signal line 70.

[0110] It can be understood that the second signal line 70 can be a signal line with the same function as the first signal line 30, and the third signal line 70 can include at least one of a scan signal line, a data signal line, a power supply voltage signal line, a reset signal line, and a transistor active layer.

[0111] It should be noted that, along the first direction X, the second signal line 70 may have the same structure as the first signal line 30. For example, along the first direction X, the second signal line 70 may have an undulating shape.

[0112] Figure 15 A schematic diagram of a display device provided in an embodiment of the present application.

[0113] The embodiment of the present application provides a display device 100, such as Figure 15 As shown, the display device 100 includes the display panel 001 provided by any of the above embodiments. The display device 100 provided by the embodiment of the present application can be a mobile phone, or a display device such as a computer or a television.

[0114] In the display device 100, the same first signal line 30 has an undulating shape along the first direction X. When the display panel 001 is bent, the stress on the undulating first signal line 30 is not excessively concentrated at the bend, thereby reducing the risk of the first signal line 30 breaking at the bend and ensuring the yield of the display panel 001. Furthermore, because adjacent first portions 31 of the first signal line 30 have different distances from the base substrate 20, the distance between adjacent first portions 31 along the first direction X can be set to be smaller. Furthermore, because the first portions 31 are arranged corresponding to the sub-pixels 10, the distance between adjacent sub-pixels 10 is reduced, thereby increasing the density of the sub-pixels 10 in the display panel 10 and improving the display quality of the display panel 10.

[0115] In adjacent first portions 31 and third portions 71, if the distance between the first portion 31 and the base substrate 20 is different from the distance between the third portion 71 and the base substrate 20, the distance between the adjacent first portions 31 and third portions 71 along the second direction Y can be set to be smaller, that is, the spacing between the first signal line 30 and the second signal line 70 can be reduced. This helps improve the space utilization of the display panel 001. Moreover, without reducing the spacing between the first signal line 30 and the second signal line 70, the line width of the first signal line 30 and the second signal line 70 can be appropriately increased, thereby reducing the resistance of the first signal line 30 and the second signal line 70 and improving the quality of the signals transmitted by the first signal line 30 and the second signal line 70.

[0116] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A display panel, characterized in that: comprising a plurality of sub-pixels, each of the sub-pixels comprising a pixel circuit; The display panel further includes: substrate; a first signal line electrically connected to the pixel circuit; the first signal line extending along a first direction and comprising a plurality of first portions and a plurality of second portions; the plurality of first portions being arranged along the first direction, and the second portions connecting adjacent first portions; along a thickness direction of the display panel, the first portions at least partially overlap with a region where the pixel circuit is located, and the second portions at least partially overlap with a region between adjacent pixel circuits; Among the two adjacent first portions of the same first signal line, along the thickness direction of the display panel, one first portion is located on a side of the other first portion close to the base substrate.

2. The display panel according to claim 1, wherein: An included angle between the second portion and the adjacent first portion is θ, wherein 15°≤θ≤60°.

3. The display panel according to claim 1, wherein: The display panel further includes an insulating layer, the insulating layer being located between the first signal line and the base substrate, the insulating layer including two first units corresponding to two adjacent first portions of the same first signal line; Among the two first units corresponding to two adjacent first parts, a height of one first unit is different from a height of the other first unit.

4. The display panel according to claim 3, wherein: The insulating layer includes a first sub-insulating layer and a second sub-insulating layer, the first sub-insulating layer includes two first sub-units corresponding to two adjacent first portions, and the second sub-insulating layer includes two second sub-units corresponding to two adjacent first portions. Among them, among the two first sub-units corresponding to the two adjacent first parts, the height of one first sub-unit is different from the height of the other first sub-unit; and among the two second sub-units corresponding to the two adjacent first parts, the height of one second sub-unit is different from the height of the other second sub-unit.

5. The display panel according to claim 1, wherein: Along the first direction, the plurality of sub-pixels are repeatedly arranged according to a first repeating unit, and the first repeating unit includes at least three of the sub-pixels; the first portion and the second portion of the first signal line are arranged along the first direction according to a second repeating unit, and the second repeating unit includes at least three of the first portions; The second repeating units are arranged in a one-to-one correspondence with the first repeating units, and along the thickness direction of the display panel, the pixel circuits in the second repeating units and the corresponding first repeating units at least partially overlap.

6. The display panel according to claim 1, wherein: Along the first direction, the plurality of sub-pixels are repeatedly arranged according to a first repeating unit, and the first repeating unit includes at least three of the sub-pixels; the first portion and the second portion of the first signal line are arranged along the first direction according to a second repeating unit, and the second repeating unit includes at least three of the first portions; The second repeating unit is arranged in a one-to-one correspondence with at least two of the first repeating units, and along the thickness direction of the display panel, the pixel circuits in the second repeating unit and the corresponding first repeating unit at least partially overlap.

7. The display panel according to claim 5 or 6, characterized in that: In the correspondingly arranged first repeating unit and the second repeating unit, the first portion and the pixel circuit in the sub-pixel are arranged in a one-to-one correspondence.

8. The display panel according to claim 5 or 6, characterized in that: Along the first direction, a maximum distance between at least three first portions in the second repeating unit and the base substrate gradually increases or decreases.

9. The display panel according to claim 5 or 6, characterized in that: Along the first direction, at least three first portions in the second repeating unit are symmetrically distributed about a first symmetry axis, and the first symmetry axis is parallel to a thickness direction of the display panel; Wherein, in the second repeating unit, the maximum distances between the two mutually symmetrical first parts and the base substrate are equal.

10. The display panel according to claim 5 or 6, characterized in that: Along the thickness direction of the display panel, in a portion of the insulating layer covered by one second repeating unit, the maximum height of the insulating layer is H1, the minimum height of the insulating layer is H2, and H2≤H1≤10*H2.

11. The display panel according to claim 1, wherein The first signal line includes at least one of a scan signal line, a data signal line, a power supply voltage signal line, a reset signal line, and a transistor active layer.

12. The display panel according to claim 1, wherein The sub-pixel further includes a light-emitting device; the light-emitting device is arranged on a side of the film layer where the first signal line is located away from the base substrate, and the distance between each light-emitting device in the plurality of sub-pixels and the base substrate is equal.

13. The display panel according to claim 1, wherein The display panel further includes a second signal line, the first signal line and the second signal line are located in the same film layer, and the second signal line and the first signal line have the same extension direction; In the second signal line and the first signal line that are adjacent to each other, the second signal line includes a third portion that is adjacent to the first portion along the second direction; Among them, in the first portion and the third portion arranged adjacent to each other along the second direction, along the thickness direction of the display panel, the first portion is located on a side of the third portion close to the base substrate or a side away from the base substrate.

14. A display device, characterized in that: Comprising the display panel according to any one of claims 1-13.

Images