Display panel and display device

Abstract

To provide a display device and a display panel which includes a base substrate, a light transmission region, a display region, a peripheral region between the display region and the light transmission region, a plurality of pixel drive circuit units, n first signal lines, a touch layer, and a light emitting element.SOLUTION: A distance between first extending portions of two adjacent first signal lines of n first signal lines is greater than a distance between first bending portions of the two adjacent first signal lines. An orthogonal projection overlap area to a base substrate between the first connecting portion and first extending portions of the n first signal lines is S1, and an orthogonal projection overlap area to the base substrate between the first connecting portion and first bending portions of the n first signal lines is S2. S1≥S2, S1 is greater than zero and n is an integer greater than 1. A length of a first extending portion of at least one first signal line is L1, a distance between the first extending portion of at least one first signal line and the second electrode is H1 in the direction vertical to the base substrate, and the distance satisfies H1≥(S1 / n) / L1.SELECTED DRAWING: Figure 3A

Description

[Technical Field]

[0001] This application claims priority to Chinese patent application No. 202010882447.1, filed on August 28, 2020, the entire contents of which are incorporated herein by reference.

[0002] The embodiments of the present disclosure relate to a display panel and a display device. [Background technology]

[0003] In recent years, mobile display technology has developed rapidly, and new generation display technologies, such as flexible displays, have become increasingly popular. At the same time, market demand for display panels with high screen-to-body ratios is becoming increasingly urgent. Traditional display panel designs, such as "bang screens" and "waterdrop screens," are gradually becoming unable to meet user needs. In this context, punching technology has emerged as a new design. Flexible displays generally use organic light-emitting diode (OLED) technology, whose emissive material is highly sensitive to the surrounding environment. Such OLED materials cannot be exposed to environments containing water or oxygen; otherwise, they will corrode, leading to breakdowns and abnormal display. Summary of the Invention [Means for solving the problem]

[0004] At least one embodiment of the present disclosure provides a display panel including a base substrate, the display panel including: a light-transmitting region; a display region at least partially surrounding the light-transmitting region; a peripheral region provided between the display region and the light-transmitting region; a plurality of pixel driving circuit units at least partially located in the display region; and n first signal lines configured to provide first signals to the plurality of pixel driving circuit units, wherein at least one of the first signal lines is connected to a first body portion located in the display region and a peripheral region provided between the display region and the light-transmitting region. The display device further includes a touch layer including: n first signal lines, each including a first extending portion located in a side region and electrically connected to the first body portion; and a first bending portion at least partially surrounding the light-transmitting region and being farther from the first body portion than the first extending portion; a first touch signal line located in the display region; and a first connecting portion located in the peripheral region and electrically connected to the first touch signal line, wherein a distance between the first extending portions of two adjacent first signal lines among the n first signal lines is equal to or smaller than the distance between the first extending portions of two adjacent first signal lines. a distance between the first bends of the n first signal lines and the first connecting portion of the n first signal lines, an overlapping area of ​​the first connecting portion and the first extending portions of the n first signal lines when orthogonally projected onto the base substrate is S1, an overlapping area of ​​the first connecting portion and the first bends of the n first signal lines when orthogonally projected onto the base substrate is S2, S1≧S2, S1 is greater than zero, and n is an integer greater than 1; and a light-emitting element electrically connected to at least one pixel driving circuit unit, the second electrode being disposed on one side of the first electrode away from the base substrate, and the light-emitting layer being disposed between the first electrode and the second electrode, wherein a length of a first extension portion of at least one of the n first signal lines is L1, and a distance between the first extension portion of at least one of the first signal lines and the second electrode in a direction perpendicular to the base substrate is H1, and the distance satisfies the formula H1≧(S1 / n) / L1.

[0005] For example, in a display panel provided by an embodiment of the present disclosure, the L1, the H1, and the S1 satisfy the formula L1*H1=k*(S1 / n), where k is a real number from 1 to 20.

[0006] For example, in a display panel provided by an embodiment of the present disclosure, the L1, the H1, and the S1 satisfy L1*H1=k*(S1 / n), where k is a real number between 2 and 10.

[0007] For example, in a display panel provided by one embodiment of the present disclosure, in a direction perpendicular to the base substrate, the distance between the first connection portion and the second electrode is H2, the area of ​​the first extension portion of one of the n first signal lines is A1, and the area of ​​the first connection portion is A2, where H2≧(1 / k1)*(A2 / nA1)*H1, and k1 is a real number in the range of 5 to 180.

[0008] For example, a display panel provided by one embodiment of the present disclosure further includes a first insulating layer, a second insulating layer, a third insulating layer, and a fourth insulating layer arranged in a direction away from the base substrate, and a first extension portion of at least one first signal line among the n first signal lines is positioned between the third insulating layer and the fourth insulating layer.

[0009] For example, in a display panel provided by one embodiment of the present disclosure, a first extension portion of at least one of the n first signal lines is located on one side of the fourth insulating layer away from the base substrate, and the first extension portion is electrically connected to a first body portion corresponding to the first extension portion through a via hole.

[0010] For example, in a display panel provided by one embodiment of the present disclosure, the plurality of pixel driving circuit units each include a first transistor, the first transistor being electrically connected to the light-emitting element, the light-emitting element being located on one side of the fourth insulating layer away from the base substrate, and the second electrode being located in a peripheral region. The first sub-portion and the second sub-portion have a first electrode and a second electrode, the first sub-portion and the second sub-portion being located in a peripheral region, and the orthogonal projection of the first sub-portion onto the base substrate at least partially overlaps with the orthogonal projection of the fourth insulating layer onto the base substrate, the orthogonal projection of the second sub-portion onto the base substrate does not overlap with the orthogonal projection of the fourth insulating layer onto the base substrate, an overlapping area between the first sub-portion and the first extension portions of the n first signal lines upon the orthogonal projection onto the base substrate is S3, and an overlapping area between the second sub-portion and the first bent portions of the n first signal lines upon the orthogonal projection onto the base substrate is S4, where S3>S4.

[0011] For example, a display panel provided by one embodiment of the present disclosure further includes a pixel definition layer located on one side of the fourth insulating layer away from the base substrate and having a plurality of pixel openings, wherein at least a portion of the light-emitting layer of the light-emitting element is located within the plurality of pixel openings, and the fourth insulating layer includes a thinned portion located in the peripheral region and not overlapping with the orthogonal projection of the first signal line onto the base substrate, and the thickness of the thinned portion along a direction perpendicular to the base substrate is thinner than the thickness of the fourth insulating layer in the display region in a direction perpendicular to the base substrate.

[0012] For example, in a display panel provided by one embodiment of the present disclosure, at least one of the first signal lines receives a potential in a first voltage range, and the first sub-portion receives a potential in a second voltage range, and the maximum absolute value of the first voltage range is greater than the maximum absolute value of the second voltage range.

[0013] For example, in a display panel provided by one embodiment of the present disclosure, the second electrode includes a third sub-portion positioned in the thinned portion, an angle between a plane of the third sub-portion and a plane of the base substrate includes a first inclination angle a1, an angle between a plane of the first connection portion and a plane of the base substrate includes a second inclination angle a2, and the first inclination angle a1 is greater than or equal to the second inclination angle a2.

[0014] For example, in a display panel provided according to an embodiment of the present disclosure, the second tilt angle a2 has a value ranging from 0° to 10°.

[0015] For example, in a display panel provided by an embodiment of the present disclosure, the width of the first connection portion is greater than 10 μm, and the value of the line width of at least one of the first signal lines is in the range of 1 μm to 5 μm.

[0016] For example, a display panel provided by one embodiment of the present disclosure further includes a sealing layer positioned between the light-emitting element and the touch layer and a fifth insulating layer positioned in the peripheral region, wherein the sealing layer includes at least a first organic sealing layer, and the fifth insulating layer is provided on one side of the first organic sealing layer away from the base substrate, the touch layer includes a first dummy block, and the first dummy block includes a first sub-dummy block at least partially provided on the fifth insulating layer, and the distance between the first connection portion and the base substrate is smaller than the distance between the first sub-dummy block and the base substrate.

[0017] For example, in a display panel provided by one embodiment of the present disclosure, the fifth insulating layer includes a first side, the first dummy block is provided on the first side, and the angle between the first dummy block and the plane of the base substrate includes a third inclination angle a3, where a3≧5*a1≧a2.

[0018] For example, in a display panel provided according to an embodiment of the present disclosure, the value of the third tilt angle a3 ranges from 30° to 60°.

[0019] For example, a display panel provided by one embodiment of the present disclosure further includes a barrier structure positioned between the display area and the light-transmitting area, a sealing layer positioned between the light-emitting element and the touch layer and including at least a first organic sealing layer, a fifth insulating layer positioned in the peripheral area and on one side of the first organic sealing layer away from the base substrate, and a first groove positioned on one side of the barrier structure away from the display area, wherein the thickness of the fifth insulating layer in the first groove is H8, and H8≦H2.

[0020] For example, in a display panel provided by one embodiment of the present disclosure, the distance between the first connection portion and the second electrode in a direction perpendicular to the base substrate is H2, the display panel further includes a barrier structure positioned between the display area and the light-transmitting area, a second groove provided on one side of the barrier structure away from the display area, and a second dummy block at least a portion of which is positioned within the second groove, the distance between the second dummy block and the first dummy block in a direction perpendicular to the base substrate is H7, which is different from the distance H2 between the first connection portion and the second electrode, and the second dummy block is farther from the display area than the second electrode, so that the second dummy block is floating connected (floating connection).

[0021] For example, in a display panel provided by an embodiment of the present disclosure, the angle between the second dummy block and the base substrate is equal to or smaller than the angle between the first dummy block and the base substrate.

[0022] For example, in a display panel provided by an embodiment of the present disclosure, the touch layer further includes a second touch signal line arranged in the display area, the first touch signal line and the second touch signal line each include a plurality of electrically connected electrode blocks, two adjacent electrode blocks in the first touch signal line or the second touch signal line are electrically connected via an adapter part, and a contact area between the adapter part and the two adjacent electrode blocks is S4, where S1≧a*S4, and a is a real number greater than 0.8.

[0023] At least one embodiment of the present disclosure further provides a display device including the display panel according to any one embodiment of the present disclosure.

[0024] At least one embodiment of the present disclosure further provides a display panel including a base substrate, the display panel including: a light-transmitting region; a display region at least partially surrounding the light-transmitting region; a peripheral region provided between the display region and the light-transmitting region; a plurality of pixel driving circuit units at least partially located in the display region; and n first signal lines configured to provide first signals to the plurality of pixel driving circuit units, wherein at least one of the first signal lines includes a first body portion located in the display region, and a first extension portion and a first bend portion located in the peripheral region. a touch layer including: n first signal lines, the first extension portion being electrically connected to the first body portion, at least a part of the first bend portion surrounding the light-transmitting region and being farther from the first body portion than the first extension portion, and a distance between the first extension portions of two adjacent first signal lines among the n first signal lines being greater than a distance between the first bend portions of two adjacent first signal lines; first touch signal lines located in the display region; and first connection portions located in the peripheral region and electrically connected to the first touch signal lines; and the plurality of pixel driving circuits. a light-emitting element including m second signal lines, each of which is configured to provide a second signal to a pixel driving circuit unit, and each of which is orthogonally projected onto the base substrate such that the first connection portion and the m second signal lines at least partially overlap each other; a first electrode; a light-emitting layer; and a second electrode, wherein the first electrode is disposed on one side of the n first signal lines away from the base substrate and is electrically connected to at least one pixel driving circuit unit; the second electrode is disposed on one side of the first electrode away from the base substrate; and the light-emitting layer is disposed between the first electrode and the second electrode; Among the n first signal lines, a distance between the first extension portions of two adjacent first signal lines is b1; among the n first signal lines, a distance between the first extension portion of at least one of the first signal lines and the second electrode in a direction perpendicular to the base substrate is H1; among the m second signal lines, a distance between two adjacent second signal lines in a region overlapping with the first connection portion is b2; among the m second signal lines, a distance between at least one of the m second signal lines and the second electrode in a direction perpendicular to the base substrate is H5; b1>b2;H5>H1.

[0025] For example, in a display panel provided by an embodiment of the present disclosure, the first extending portion of the first signal line is a straight line segment, and the first bending portion of the first signal line is an arc segment.

[0026] For example, in a display panel provided by an embodiment of the present disclosure, the width of the first connection portion is greater than 10 μm, and the value of the line width of at least one of the first signal lines is in the range of 1 μm to 5 μm.

[0027] For example, in a display panel provided according to an embodiment of the present disclosure, the width of the first connection portion ranges from 20 μm to 110 μm.

[0028] For example, a display panel provided by one embodiment of the present disclosure further includes a first insulating layer, a second insulating layer, a third insulating layer, and a fourth insulating layer arranged in a direction away from the base substrate, and a first extension portion of at least one of the n first signal lines is arranged between the third insulating layer and the fourth insulating layer.

[0029] At least one embodiment of the present disclosure further provides a display device including the display panel according to any one embodiment of the present disclosure. [Brief explanation of the drawings]

[0030] In order to more clearly describe the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments are briefly introduced below. Obviously, the drawings in the following description do not limit the present disclosure, but only relate to some embodiments of the present disclosure.

[0031] [Figure 1] FIG. 1 is a schematic diagram of the windings in the hole area of ​​the display panel. [Figure 2] FIG. 2 is a plan view of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 3A]FIG. 3A is an enlarged schematic diagram of a fourth side of a light-transmitting area of ​​a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 3B] FIG. 3B is an enlarged schematic diagram of a fourth side of a light-transmitting region of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 3C] FIG. 3C is an enlarged schematic diagram of a first side of a light-transmitting region of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 3D] FIG. 3D is an enlarged schematic diagram of a fourth side of a light-transmitting region of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 3E] FIG. 3E is an enlarged schematic diagram of a first side of a light-transmitting region of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 3F] FIG. 3F is a schematic cross-sectional view taken along A2-B2 of FIG. 3D, provided in accordance with at least one embodiment of the present disclosure. [Figure 3G] FIG. 3G is a schematic cross-sectional view along A1-B1 of FIG. 3E provided in accordance with at least one embodiment of the present disclosure. [Figure 3H] FIG. 3H is a schematic cross-sectional view taken along C1-C2 of FIG. 3E, provided in accordance with at least one embodiment of the present disclosure. [Figure 4A] FIG. 4A is a schematic diagram of a light-transmitting area of ​​a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 4B] FIG. 4B is an enlarged schematic diagram of a first side of a light-transmitting region of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 4C] FIG. 4C is an enlarged schematic diagram of a first side of a light-transmitting region of a display panel provided in accordance with at least another embodiment of the present disclosure. [Figure 4D] FIG. 4D is an enlarged schematic diagram of a fourth side of a light-transmitting region of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 4E]FIG. 4E is a partially enlarged schematic diagram of a fourth side of a light-transmitting region of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 4F] FIG. 4F is a schematic diagram of a light-transmitting area of ​​a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 5] FIG. 5 is a schematic cross-sectional view of a display area of ​​a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 6A] FIG. 6A is a schematic diagram of a touch layer of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 6B] FIG. 6B is a schematic diagram of a touch layer of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 6C] FIG. 6C is a schematic diagram of a touch layer of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 7A] FIG. 7A is an enlarged schematic diagram of region D of FIG. 6B provided in accordance with at least one embodiment of the present disclosure. [Figure 7B] FIG. 7B is an enlarged schematic diagram of region E of FIG. 6B provided in accordance with at least one embodiment of the present disclosure. [Figure 7C] FIG. 7C is a schematic diagram of a first adapter portion of a touch layer provided in accordance with at least one embodiment of the present disclosure. [Figure 8A] FIG. 8A is an enlarged schematic diagram of a first side of a light-transmitting region of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 8B] FIG. 8B is an enlarged schematic diagram of a fourth side of a light-transmitting region of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 9A] FIG. 9A is an enlarged schematic diagram of a light-transmitting region of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 9B] FIG. 9B is an enlarged schematic diagram of a light-transmitting region of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 10A]FIG. 10A is an enlarged schematic diagram of a light-transmitting region of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 10B] FIG. 10B is an enlarged schematic diagram of a light-transmitting region of a display panel provided in accordance with at least another embodiment of the present disclosure. [Figure 10C] FIG. 10C is a schematic diagram of a light-transmitting region of a display panel provided in accordance with at least another embodiment of the present disclosure. [Figure 10D] FIG. 10D is a schematic diagram of a light-transmitting area of ​​a display panel provided according to yet another embodiment of the present disclosure. [Figure 10E] FIG. 10E is a schematic diagram of a light-transmitting area of ​​a display panel provided according to yet another embodiment of the present disclosure. [Figure 11A] FIG. 11A is an enlarged schematic diagram of a light-transmitting region of a display panel provided in accordance with at least another embodiment of the present disclosure. [Figure 11B] FIG. 11B is an enlarged schematic diagram of a light-transmitting region of a display panel provided in accordance with at least another embodiment of the present disclosure. [Figure 11C] FIG. 11C is an enlarged schematic diagram of a light-transmitting region of a display panel provided in accordance with at least another embodiment of the present disclosure. [Figure 12A] FIG. 12A is a schematic cross-sectional view of a display area and a light-transmitting area of ​​a display panel provided in accordance with at least another embodiment of the present disclosure. [Figure 12B] FIG. 12B is a schematic cross-sectional view of a display area and a light-transmitting area of ​​a display panel provided in accordance with at least another embodiment of the present disclosure. [Figure 12C] FIG. 12C is a schematic cross-sectional view of a display area and a light-transmitting area of ​​a display panel provided in accordance with at least another embodiment of the present disclosure. [Figure 12D] FIG. 12D is a partially enlarged schematic view of FIG. 12A. [Figure 13] FIG. 13 is a schematic diagram of region H of FIG. 12A provided in accordance with at least one embodiment of the present disclosure. [Figure 14A]FIG. 14A is a schematic cross-sectional view of a first barrier wall of a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 14B] FIG. 14B is a schematic cross-sectional view of a first blocking wall in a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 14C] FIG. 14C is a schematic cross-sectional view of a second barrier wall in a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 14D] FIG. 14D is a schematic cross-sectional view of a second blocking wall in a display panel provided in accordance with at least one embodiment of the present disclosure. [Figure 15] FIG. 15 is a schematic diagram of a display device provided in accordance with at least one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0032] In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are not all embodiments, but are a part of the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present disclosure.

[0033] Unless otherwise defined, technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure belongs. As used in this disclosure, the words "first," "second," and similar words do not denote order, quantity, or importance, but are used only to distinguish between different components. Similarly, similar words such as "one," "an," "the," and "the" do not denote a limitation of quantity, but rather denote the presence of at least one. Similar words such as "comprise" or "contain" mean that the element or item preceding the word covers the elements or items listed thereafter and their equivalents. For convenience of explanation, "top," "bottom," "front," and "back" are shown in some drawings. In the exemplary embodiments of this disclosure, the vertical direction is from top to bottom, the vertical direction is the direction of gravity, the horizontal direction is perpendicular to the vertical direction, and the horizontal direction from right to left is from front to back.

[0034] In related art, the presence of a light-transmitting region in a display panel allows, for example, a camera, a sensor, etc. to be disposed at a position corresponding to the light-transmitting region, but signal lines in the pixel driving circuit unit P, such as one or more of data signal lines, gate signal lines, and reset signal lines, are usually made of opaque metal material, so it is necessary to design windings in the light-transmitting region to improve transmittance. Due to the width requirement of the frame around the light-transmitting region, high-density metal wiring exists in the light-transmitting region, and these high-density metal wirings may cause potential perturbations in the cathode disposed on one side away from the base substrate.

[0035] An embodiment of the present disclosure discloses a display panel including a base substrate, a plurality of pixel driving circuit units, n first signal lines, a touch layer, and light-emitting elements. The base substrate includes a light-transmitting region, a display region at least partially surrounding the light-transmitting region, and a peripheral region between the display region and the light-transmitting region. At least some of the pixel driving circuit units are disposed in the display region. The n first signal lines are configured to provide first signals to the plurality of pixel driving circuit units. At least one of the first signal lines includes a first body portion located in the display region and a first extension portion and a first bend portion located in the peripheral region. The first extension portion is electrically connected to the first body portion, and at least a portion of the first bend portion surrounds the light-transmitting region and is farther from the first body portion than the first extension portion. The distance between the first extension portions of two adjacent first signal lines among the n first signal lines is greater than the distance between the first bend portions of two adjacent first signal lines.

[0036] In some embodiments of the present disclosure, the signal lines around the light-transmitting area are designed to have extensions and bends, allowing the signal lines close to the display area to be designed with as large an interval as possible within a limited space, thereby making some of the signal lines less dense and reducing the number of signal line leads to some of the cathodes close to the display area, thereby improving the display effect.

[0037] In some embodiments of the present disclosure, the touch layer of the display panel includes first touch signal lines positioned in the display area and first connecting portions positioned in the peripheral area, the first connecting portions are electrically connected to the first touch signal lines, an overlapping area between the first connecting portion and first extending portions of the n first signal lines when orthogonally projected onto the base substrate is S1, and an overlapping area between the first connecting portion and first bending portions of the n first signal lines when orthogonally projected onto the base substrate is S2, where S1≧S2, S1 is greater than zero, and n is an integer greater than 1. In this way, around the light-transmitting area, the touch signal lines in the touch layer can also be designed as windings or jumper wires to avoid the light-transmitting area, thereby improving the transmittance of the light-transmitting area. In an embodiment of the present disclosure, first connection portions for connecting touch signal lines in a display area are arranged at positions corresponding to the first extension portions of the n first signal lines, and as few as possible are arranged at positions corresponding to the first bend portions of the n first signal lines, so that the influence between the connection portions (e.g., first connection portions) of the signal lines, cathodes, and touch signal lines in the pixel driving circuit unit can be minimized in the peripheral area at positions close to the display area.

[0038] In some embodiments of the present disclosure, a light-emitting element of a display panel includes a first electrode, a light-emitting layer, and a second electrode, where the first electrode is disposed on one side of n first signal lines remote from the base substrate and is electrically connected to at least one pixel driving circuit unit, the second electrode is disposed on one side of the first electrode remote from the base substrate, and the light-emitting layer is disposed between the first electrode and the second electrode. Among the n first signal lines, a first extension portion of at least one first signal line has a length L1, and a distance between the first extension portion of at least one first signal line and the second electrode in a direction perpendicular to the base substrate is H1, where the formula H1 ≥ (S1 / n) / L1 is satisfied. Thus, in some embodiments of the present disclosure, considering the length of the first extension portion itself and the average value of the overlapping area between the n first signal lines and the first connection portion, the distance between the first extension portion and the second electrode (e.g., cathode) satisfies the formula, and the influence between the first signal line, the cathode, and the first connection portion can be minimized as much as possible.

[0039] An embodiment of the present disclosure discloses a display panel, the display panel including a base substrate, the display panel further including a light-transmitting region, a display region at least a portion of which surrounds the light-transmitting region, and a peripheral region provided between the display region and the light-transmitting region, a plurality of pixel driving circuit units at least a portion of which is located in the display region, and n first signal lines configured to provide first signals to the plurality of pixel driving circuit units, wherein at least one first signal line includes a first body portion located in the display region, a first extension portion and a first bend portion located in the peripheral region, the first extension portion is electrically connected to the first body portion, at least a portion of the first bend portion surrounds the light-transmitting region and is farther from the first body portion than the first extension portion, and a distance between the first extension portions of two adjacent first signal lines of the n first signal lines is greater than a distance between the first bend portions of the two adjacent first signal lines, and the display panel further includes a touch layer, the touch layer is connected to the first touch signal line located in the display region and the peripheral region, the first connecting portion is positioned in the region, the first connecting portion is electrically connected to the first touch signal line, an overlapping area of ​​the first connecting portion and the first extending portions of the n number of first signal lines when orthogonally projected onto the base substrate is S1, and an overlapping area of ​​the first connecting portion and the first bending portions of the n number of first signal lines when orthogonally projected onto the base substrate is S2, where S1≧S2, S1 is greater than zero, and n is an integer greater than 1; the display panel further includes a light emitting element, the light emitting element including a first electrode, a light emitting layer, and a second electrode, the first electrode being a base substrate; a second electrode is provided on one side of the first electrode away from the base substrate and electrically connected to at least one pixel driving circuit unit; a second electrode is provided on one side of the first electrode away from the base substrate; an emission layer is provided between the first electrode and the second electrode; among the n first signal lines, the length of a first extension portion of at least one first signal line is L1; and in a direction perpendicular to the base substrate, the distance between the first extension portion of the at least one first signal line and the second electrode is H1, which satisfies the formula H1≧(S1 / n) / L1.

[0040] In some embodiments of the present disclosure, by taking into consideration the distance between the first bends of the first extension portions of the multiple first signal lines, their positions to the display area, the average overlapping area between the n first signal lines and the first connection portion, and the distance between the first extension portion and the second electrode (e.g., the cathode), the influence between the first signal lines, the cathode, and the first connection portion can be minimized.

[0041] At least one embodiment of the present disclosure further provides a display device including the above-described display panel.

[0042] Embodiments of the present disclosure and examples thereof are described in detail below with reference to the accompanying drawings.

[0043] FIG. 1 is a schematic diagram of the windings in the hole region of a display panel. As shown in FIG. 1, the display panel includes a display region 10, a light-transmitting region 01, and a peripheral region 02 between the display region 10 and the light-transmitting region 01. For example, the light-transmitting region 01 can be configured to transmit light, and a camera, sensor, etc. can be located in the corresponding region. For example, the light-transmitting region 01 can be an opening, or a blind hole design that retains a base substrate or a high-transmittance film (e.g., an inorganic insulating layer) on the base substrate. Alternatively, a low-transmittance film can be removed from the corresponding region on the base substrate, such as a blind hole design in an opaque metal film. In some embodiments of the present disclosure, the light-transmitting region 01 will be described as an opening. Devices such as cameras and sensors are usually installed in the region where the opening 01 (light-transmitting region 01) is present.

[0044] In some embodiments of the present disclosure, FIG. 3A is an enlarged schematic view of a fourth side of a light-transmitting area of ​​a display panel provided by at least one embodiment of the present disclosure, and FIG. 3B is an enlarged schematic view of the fourth side of a light-transmitting area of ​​a display panel provided by at least another embodiment of the present disclosure. As shown in Figures 3A and 3B, the display panel includes a display area, a plurality of pixel driving circuit units P at least a portion of which is located in the display area, and a first signal line DS2 configured to provide a first signal to the plurality of pixel driving circuit units P, and at least one first signal line includes a first body portion DS located in the display area, a first extension portion Y1 and a first bend portion C1 located in the peripheral area, the first extension portion Y1 is electrically connected to the first body portion DS, at least a portion of the first bend portion C1 surrounds the light-transmitting area O1 and is farther from the first body portion DS than the first extension portion Y1, and among the n first signal lines DS2, the distance between the first extension portions Y1 of two adjacent first signal lines DS2 is greater than the distance between the first bend portions C1 of two adjacent first signal lines. In this way, the signal lines around the light-transmitting area are designed to have an extension portion (e.g., the first extension portion Y1) and a bend portion (e.g., the first bend portion C1), so that the spacing between the signal lines close to the display area is as large as possible in a limited space, which makes some of the signal line density relatively sparse, thereby reducing the number of lead lines of the signal lines to some of the cathodes close to the display area and improving the display effect.

[0045] In some embodiments of the present disclosure, FIG. 3C is an enlarged schematic view of a first side of a light-transmitting area of ​​a display panel provided by at least one embodiment of the present disclosure, FIG. 5 is a schematic cross-sectional view of a display area of ​​a display panel provided by at least one embodiment of the present disclosure, and FIG. 6B is a schematic drawing of a touch layer of a display panel provided by at least another embodiment of the present disclosure. 3C, 5 and 6B, the display panel further includes a touch layer 28, which includes first touch signal lines Rx located in the display area 10 and first connecting portions Rx1 located in the peripheral area 202, the first connecting portions Rx1 being electrically connected to the first touch signal lines Rx, an overlapping area S1 between the first connecting portions Rx1 and the first extending portions Y1 of the n first signal lines DS2 when orthogonally projected onto the base, and an overlapping area S2 between the first connecting portions Rx1 and the first bending portions C1 of the n first signal lines DS2 when orthogonally projected onto the base, where S1≧S2, S1 is greater than zero, and n is an integer greater than 1. In this way, around the light-transmitting area, the touch signal lines in the touch layer can be designed as windings or jumper wires to avoid the light-transmitting area, thereby improving the transmittance of the light-transmitting area. In the embodiment of the present disclosure, the first connection parts for connecting the touch signal lines in the display area are arranged at positions corresponding to the first extension parts Y1 of the n first signal lines DS2, and arranged as few as possible at positions corresponding to the first bends C1 of the n first signal lines DS2, so that in positions close to the display area, the influence between the connection parts (first connection parts Rx1) of the signal lines, cathodes, and touch signal lines in the pixel driving circuit unit can be minimized on the surrounding area.

[0046] For example, the overlapping areas of the first extending portions Y1-1, Y1-2... Y1-n of the n first signal lines D0-1, D0-2... D0-n when orthogonally projected onto the base substrate are S1-1, S1-2... S1-n, respectively, where S1 is the sum of S1-1, S1-2... S1-n, and for example, the overlapping areas of the first connecting portion Rx1 and the first bending portions C1-1, C1-2... C1-n of the n first signal lines D0-1, D0-2... D0-n on the base substrate are The overlapping areas of the orthogonal projections onto the substrate are S2-1, S2-2...S2-n, respectively, where S2 is the sum of S2-1, S2-2...S2-n, where S1≧S2. In a specific embodiment, S2 may be 0, that is, the orthogonal projections onto the base substrate of the first connection portion Rx1 and the first bend portions C1-1, C1-2...C1-n of the n first signal lines D0-1, D0-2...D0-n do not overlap. In a specific embodiment, n may be an integer between 5, 6, 7, 8...20, and the value of n can continue to increase as the light transmission area increases, which is not a limitation of the present disclosure.

[0047] In some embodiments of the present disclosure, FIG. 12A is a schematic cross-sectional view of a display area and a light-transmitting area of ​​a display panel provided in accordance with at least one embodiment of the present disclosure. As shown in Figures 5 and 12A, the display panel further includes a light-emitting element 26, which includes a first electrode 261, a light-emitting layer 262, and a second electrode 263, the first electrode 261 is provided on one side of the first signal line DS2 away from the base substrate 100 and is electrically connected to at least one pixel driving circuit unit P, the second electrode 263 is provided on one side of the first electrode 261 away from the base substrate 100, the light-emitting layer 262 is provided between the first electrode 261 and the second electrode 263, among the n first signal lines DS2, the length of the first extension portion Y1 of at least one first signal line is L1, and in a direction perpendicular to the base substrate 100, the distance between the first extension portion Y1 of the at least one first signal line and the second electrode is H1 (e.g., vertical distance), and the distance satisfies the formula H1 ≧ (S1 / n) / L1. In this way, taking into consideration the length of the first extension portion Y1 itself and the average value of the overlapping area between the n first signal lines D0 and the first connection portion, the distance between the first extension portion Y1 and the second electrode (e.g., the cathode) satisfies the above formula, and the influence between the first signal line, the cathode, and the first connection portion can be minimized as much as possible.

[0048] For example, the length L1 of the first extension portion may be the length between the first signal line main body portion DS and the first bend portion C1, or may be L1-1, L1-2...L1-n in the figure, as shown in Figure 3D. For example, in the direction perpendicular to the base substrate 100, the distance H1 between the first extension portion Y1 and the second electrode 263 may be the vertical distance between the surface of the first extension portion and the second electrode 263, or the vertical distance between the bottom surface of the first extension portion and the second electrode 263, or the vertical distance between the position halfway through its thickness and the second electrode 263.

[0049] It should be noted that the vertical distance in the embodiment of the present disclosure is the distance in the direction perpendicular to the base substrate 100 .

[0050] In addition, taking into consideration measurement errors, the "length, width, thickness, distance, etc." in this disclosure can tolerate a measurement error of 25% or less.

[0051] In some embodiments of the present disclosure, as shown in FIG. 1 , a display panel includes a light-transmitting region 01 and a peripheral region 02 at least partially surrounding the light-transmitting region 01; the display panel further includes a display region, a plurality of pixel driving circuit units P at least partially located in the display region, and a first signal line DS2 configured to provide a first signal to the plurality of pixel driving circuit units P; the at least one first signal line includes a first body portion DS located in the display region, a first extension portion Y1 and a first bend portion C1 located in the peripheral region, the first extension portion Y1 is electrically connected to the first body portion DS, and at least a portion of the first bend portion C1 surrounds the light-transmitting region 01 and is farther from the first body portion DS than the first extension portion Y1; and the display panel includes a touch panel. the touch layer includes first touch signal lines Rx located in the display area and first connection portions Rx1 provided in the peripheral area O2, the first connection portions Rx1 are electrically connected to the first touch signal lines Rx, a distance between first extension portions Y1 of two adjacent first signal lines among the n first signal lines DS2 is greater than a distance between first bend portions C1 of the two adjacent first signal lines, an overlapping area of ​​the first connection portion Rx1 and the first extension portions Y1 of the n first signal lines in orthogonal projection onto the base substrate is S1, an overlapping area of ​​the first connection portion Rx1 and the first bend portions C1 of the n first signal lines in orthogonal projection onto the base substrate is S2, S1≧S2, S1 is greater than zero, and n is an integer greater than 1, and the display panel further includes a light-emitting element. The light-emitting element includes a first electrode, a light-emitting layer, and a second electrode 263, where the first electrode is disposed on one side of the first signal line remote from the base substrate and is electrically connected to at least one pixel driving circuit unit P. The second electrode 263 is disposed on one side of the first electrode remote from the base substrate, and the light-emitting layer is disposed between the first electrode and the second electrode 263, where a length of a first extension portion Y1 of at least one first signal line among the n first signal lines D0 is L1, and a distance between the first extension portion Y1 of the at least one first signal line and the second electrode 263 in a direction perpendicular to the base substrate 100 is H1 (e.g., a vertical distance), where the distance satisfies the formula H1≧(S1 / n) / L1.Since many signal lines, such as signal line windings, are arranged around the light-transmitting area, by adopting the design of the embodiment of the present disclosure, taking into account the length of the signal lines themselves and the average value of the total overlapping area between the n first signal lines D0 (e.g., D0-1, D0-2, D0-3...D0-n) and the first connecting portion Rx1, the distance H1 between the extending portion of the signal line, such as the first signal line, and the cathode satisfies the formula H1≧(S1 / n) / L1, and the influence between the first signal line, the cathode, and the first connecting portion is minimized as much as possible.

[0052] For example, in FIG. 3D , an example will be described in which the value of n is 10 and the width of the first signal line D0 is 2 μm. The length Y1 of the first extension portion of at least one first signal line D0 is L1-1=160 μm, and the overlapping areas of the orthogonal projections of the first extension portions Y1-1, Y1-2, ..., Y1-10 of the ten first signal lines D0-1, D0-2, ..., D0-10 onto the base substrate are S1-1=150*2=300 μm2, respectively. When the overlapping areas of the first extension portions of the zero first signal lines and the first connection portion Rx1 are equal and S1=S1-1*10=3000 μm2, (S1 / n) / L1=1.9 μm, and the distance H1 between the first extension portion Y1-1 of the first signal line D0 and the second electrode 263 exceeds 1.9 μm, thereby making it possible to further reduce the influence of the signal lines in that area on the cathode and touch connection portion.

[0053] For example, the distance H1 can be 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 8 μm, etc., and the distance H1 can be adjusted taking into account the processing capacity and the actual panel thickness as long as it is greater than the above minimum value.

[0054] It should be noted that the overlapping areas of the orthogonal projections of the first extending portions Y1-1, Y1-2, . . . Y1-10 of the ten first signal lines D0-1, D0-2, . . . D0-10 onto the base substrate may vary, and actual calculation needs take priority.

[0055] In some embodiments of the present disclosure, the display panel further includes a plurality of light-emitting control signal lines EM0 extending in the first direction X0, a plurality of second signal lines extending in the first direction X0, such as the scanning signal lines GS, and a plurality of first signal lines extending along the second direction Y0, such as the data signal lines DS0. The display area may be disposed around the light-transmitting area O1, or may be partially disposed around the left, right, and bottom sides of the light-transmitting area O1, or around the left and bottom sides of the light-transmitting area O1, or around the right and bottom sides of the light-transmitting area O1.

[0056] FIG. 2 is a plan view of a display panel provided by at least one embodiment of the present disclosure. As shown in FIG. 2, the display panel 1 includes a base substrate 100, a plurality of second signal lines GS2 and GS1, and a plurality of first signal lines DS2 and DS1. The second signal lines GS2 and GS1 extend along a first direction X and provide, for example, first display signals (e.g., gate scan signals), while the first signal lines DS2 and DS1 extend along a second direction Y and provide, for example, second display signals (e.g., data signals). The display panel includes a light-transmitting region and a peripheral region 202 surrounding an opening 201. In this embodiment, the opening 201 is taken as the light-transmitting region. The peripheral region 202 includes a first winding region R1 located on a first side SS1, a second winding region R2 located on a second side SS2, a third winding region R3 located on a third side SS3, and a fourth winding region R4 located on a fourth side SS4. The first side SS1 and the second side SS2 face each other in a first direction X, and the third side SS3 and the fourth side SS4 face each other in a second direction Y that is different from the first direction X.

[0057] In the embodiments of the present disclosure, the peripheral region 02 is divided into the four winding regions for the sake of convenience, but in actual design, the four winding regions do not have specific boundaries. In some embodiments of the present disclosure, the four winding regions can be understood as winding situations in four directions, "above, below, left, and right" of the opening 201, but are not limited thereto.

[0058] In some embodiments of the present disclosure, the display panel may further include a plurality of third signal lines EM1, EM2 extending along the first direction X for providing second display signals (eg, light-emitting control signals).

[0059] The opening 201 is a through-hole or a notch. For example, when a camera is installed in the opening 201, the opening 201 is a through-hole, and when a fingerprint recognition sensor, an infrared sensor, a distance sensor, or the like is installed in the opening 201, the opening 201 is a notch.

[0060] For example, in some embodiments, the first direction X and the second direction Y may intersect each other, and the first direction X and the second direction Y may be perpendicular to each other.

[0061] For example, in other embodiments, the display panel may include two openings, and the shape of the openings may be different from the opening 201 in Fig. 2, for example, the openings are track-shaped. This disclosure will be described using Fig. 2 as an example, and embodiments with other shapes and numbers of openings are modifications of the embodiment shown in Fig. 2 and will not be described in detail.

[0062] For example, the display panel provided by the embodiments of the present disclosure may be a display panel such as an organic light-emitting diode (OLED) display panel or a quantum dot light-emitting diode (QLED) display panel, and the embodiments of the present disclosure do not limit the specific type of display panel.

[0063] 2 , at least a portion of the display area 10 may be understood to surround the opening 201 and the peripheral area 202. The display area 10 includes a first sub-display area 101, a second sub-display area 102, and a third sub-display area 103. The first sub-display area 101 is located on a first side SS1 of the opening 201, the second sub-display area 102 is located on a second side SS2 of the opening 201, and the third sub-display area 103 is located on a third side SS3 of the opening 201. A plurality of first signal lines DS1 extend along the second direction Y and extend, for example, to the display area other than the pixel rows and pixel columns occupied by the light-transmitting area (opening 201). The first signal lines DS1 pass through the first sub-display area 101 and the third sub-display area 103 or the second sub-display area 102 and the third sub-display area 103. The plurality of first signal lines DS2 extend from the third side SS3 of the opening 201 along the second direction Y, passing through the peripheral region 202, to the fourth side SS4 of the opening 201.

[0064] 2 , in an embodiment of the present disclosure, the multiple second signal lines GS2 pass through the first sub-display region 101, the peripheral region 202, and the second sub-display region 102 along the first direction X and are wound around the opening 201 in the peripheral region 202. The multiple second signal lines GS2 are wound through the third winding region R3 or the fourth winding region R4 in the peripheral region 202. The multiple third signal lines EM2 pass through the first sub-display region 101 and the third sub-display region 103. The multiple third signal lines EM1 pass through the third sub-display region 103 along the first direction X.

[0065] In some embodiments of the present disclosure, at least one of the signal lines along the X direction, such as the multiple second signal lines GS2 and the multiple third signal lines EM2, may be separated by the opening 201 and may not have a winding design.

[0066] In some embodiments of the present disclosure, for example, the second signal line GS2 is a gate scanning signal. When the display panel adopts double-sided driving, the second signal line GS2 can also provide a scanning signal to the pixel driving circuit via both sides, such as the left and right sides, of the display panel, thereby eliminating the need for a winding design and freeing up signal placement space in the peripheral region 202.

[0067] 2, the display area 10 may further include a fourth sub-display area 104 provided on a fourth side SS4 of the light-transmitting area. For example, the fourth sub-display area 104 is connected to the first sub-display area 101 and the second sub-display area 102 in the second direction Y. The first signal lines DS1 pass through the fourth sub-display area 104, the first sub-display area 101, and the third sub-display area 103, or pass through the fourth sub-display area 104, the second sub-display area 102, and the third sub-display area 103, along the second direction Y. The first signal lines DS2 extend from the third sub-display area 103 through the peripheral area 202 along the second direction Y to the fourth sub-display area 104. That is, the display panel includes a plurality of first signal lines DS1, and in the extension direction thereof, due to the design of the light-transmitting regions (aperture regions), there are no missing pixel units at the positions where the plurality of first signal lines DS1 pass through, so there is no need for the plurality of first signal lines DS1 to be wound around the light-transmitting regions.The display panel includes a plurality of first signal lines DS2, and in the extension direction thereof, there are missing normal pixel units at the positions where the plurality of first signal lines DS2 pass through, so in the embodiment of the present disclosure, a winding design is implemented to ensure that the signals are normally provided to the corresponding pixel units.

[0068] In the embodiments of the present disclosure, for the sake of convenience in explanation and understanding of the solution, the display area is divided into a first sub-display area, a second sub-display area, a third sub-display area, and a fourth sub-display area. In actual design, the four display areas have no specific boundaries. In some embodiments of the present disclosure, the four display areas can be understood as four display positions "above, below, left, and right" of the opening 201. This does not limit the embodiments of the present disclosure.

[0069] Depending on the design position of the light-transmitting region 201, at least one of the first display region, the fourth display region, and the second display region can be reduced or canceled depending on the actual distance between the light-transmitting region 201 and the frame of the display panel. For example, if the light-transmitting region 201 is positioned as close as possible to the upper frame of the display panel, the light-transmitting region 201 is very close to the upper frame of the display panel, so there is no need to display anything above the light-transmitting region 201. In this case, the fourth display region can be eliminated. The design of the openings 201 at other positions is the same, so it will not be repeated.

[0070] For example, the display region further includes a pixel array, which includes a plurality of sub-pixels located in at least a first sub-display region, a second sub-display region, and a third sub-display region. Figure 3C is an enlarged schematic diagram of a first side of a light-transmitting region of a display panel provided by at least one embodiment of the present disclosure. For example, as shown in Figure 3C, the display region 10 further includes a pixel array DP, which includes a plurality of pixel driving circuit units P in the display region. For example, the first sub-display region 101 includes a plurality of pixel driving circuit units P in the first sub-display region 101, exemplified as a light-transmitting region (e.g., opening 201). For example, as shown in Figure 3A, the pixel array DP further includes a plurality of pixel driving circuit units P in the fourth sub-display region 104. A plurality of pixel driving circuit units P are further provided in the second sub-display area 102 and the third sub-display area 103 (not shown), and the arrangement of the plurality of pixel driving circuit units P in the second sub-display area 102 and the third sub-display area 103 is the same as the arrangement of the plurality of pixel driving circuit units P in the first sub-display area 101 in FIG. 3C and the fourth sub-pixel area 104 in FIG. 3A. The plurality of second signal lines GS2, GS1 are configured to provide first display signals (e.g., gate scanning signals) to the plurality of pixel driving circuit units P of the pixel array DP, and the plurality of first signal lines DS2, DS1 are configured to provide second display signals (e.g., data signals) to the plurality of pixel driving circuit units P of the pixel array DP. The plurality of third signal lines EM1, EM2 are configured to provide second display signals (e.g., emission control signals) to the plurality of pixel driving circuit units P of the pixel array DP.

[0071] 3A is an enlarged schematic view of the fourth side SS4 of the light-transmitting region 201. The enlarged schematic view of the third side SS3 of the light-transmitting region 201 opposite the fourth side SS4 is substantially the same as the structure in FIG. 3A, and therefore will not be repeated in detail here. FIG. 3C is an enlarged schematic view of the first side SS1 of the light-transmitting region 201. The enlarged schematic view of the second side SS2 of the light-transmitting region 201 opposite the first side SS1 is substantially the same as the structure in FIG. 3C, and therefore will not be repeated in detail here.

[0072] 3A and 3B, the first signal line DS2 includes a first bent portion C1 in the peripheral region 202 and a first extending portion Y1 in the peripheral region 202. The first extending portion Y1 extends along the second direction Y, and the first extending portion Y1 is connected to the first bent portion C1, and at least a portion of the first bent portion C1 is provided around the opening 201.

[0073] In some embodiments of the present disclosure, an extension portion of a signal line, such as the first signal line extension portion Y1, may be substantially linear, for example, the first signal line may be a data cable, and the extension portion Y1 of the data cable extends along the second direction and is not substantially linear; and a bent portion of a signal line, such as the bent portion of the first signal line, may have the shape of a dashed line or an arc line, for example, the first signal line may be a data cable, and the bent portion C1 of the data cable may be a dashed line or an arc segment at least partially arranged around the light-transmitting region 201.

[0074] 3A and 3B, the first bent portion C1 may be provided around the opening 201 in the first winding region R1, and the first bent portion C1 may be provided around the opening 201 in the fourth winding region R4. In an actual design, it can be understood that the first bent portion C1 may be provided in the peripheral region 202.

[0075] For example, the first extension portions Y1 and the first bend portions C1 of two adjacent first signal lines DS2 may be provided in the same film layer or different film layers in the peripheral region 202 (e.g., the fourth winding region R4), for example, the film layer on which the first extension portions Y1 of two adjacent first signal lines DS2 are located may be different from the film layer on which the first bend portions C1 are located, thereby reducing the electrical influence between the first signal lines, such as reducing signal crosstalk.

[0076] 3A and 3C, the display panel may further include a second signal line GS2, which includes a second extending portion GS21 and a second bent portion GS22, and the second bent portion GS22 passes through the fourth winding region R4, and the second signal line GS2 and the first signal line DS2 are provided in different layers in the peripheral region, thereby improving the signal uniformity between the left and right sides of the light-transmitting region 201 of the display panel.

[0077] For example, the second signal line GS2 may also be separated in the light-transmitting region 201, and in this case, the second signal line GS2 does not exist in the peripheral region 202, and for example, the second extending portion GS21 and the second bending portion GS22 (shown by dotted lines in FIG. 3A so that GS2 can be omitted here) are not present. In this way, the problem of the narrow wiring space in the peripheral region 202 can be alleviated.

[0078] In some embodiments of the present disclosure, as shown in FIG. 3A , in the fourth winding region R4 (for example, and the third winding region R3), the density of the first signal line DS2, i.e., the density of the first extending portion Y1 of the first signal line DS2, is lower than the density of the second signal line GS2, i.e., the density of the second bending portion GS22 of the second signal line GS2, which is beneficial to reducing the influence of the dense windings in the peripheral region 202 on the potential of the electrodes (such as the cathode) of the light-emitting element.

[0079] 3C , in the first winding region R1 (e.g., and the second winding region R2), the orthogonal projection of the second signal line GS2 onto the base substrate 100 intersects with the orthogonal projection of the first bent portion C1 of the first signal line DS2 onto the base substrate 100. For example, in the first winding region R1 (e.g., and the second winding region R2), the density of the second signal line GS2, e.g., the density of the second bent portion GS22 of the second signal line GS2, is lower than the density of the first signal line DS2, e.g., the density of the first extending portion Y1 of the first signal line DS2, which is beneficial in reducing the influence of the dense windings in the peripheral region 202 on the potential of the electrodes (such as the cathode) of the light-emitting element.

[0080] For example, the film layer on which at least a portion of at least one first signal line is located in the peripheral region of the opening is different from the film layer on which the at least one first signal line is located in the display region. As shown in FIG. 3C , the film layer on which the second signal line extension portion GS21 and the second bend portion GS22 of the second signal line GS2 are located in the first winding region R1 (e.g., and second winding region R2) in the peripheral region 201 of the opening is different from the film layer on which the second signal line GS2 is located in the display region 100. For example, the first extension portion Y1 with a changed wiring layer and the first extension portion Y1 with an unchanged wiring layer may be spaced apart. That is, when the second signal line GS2 extends from the first display region 101 to the peripheral region 201 of the opening, the wiring layer is changed, which reduces the wiring density of the second signal line GS2 and is therefore beneficial to reducing the influence of dense winding in the peripheral region 202 on the potential of the electrode (e.g., cathode) of the light-emitting element.

[0081] It should be noted that the wiring "density" in the embodiments of the present disclosure can be understood to refer to the number of wires per unit area, for example, the number of wires per unit distance in a first or second direction, or "density" can be understood to refer to the distance between two adjacent lines in a direction perpendicular to the wiring direction.

[0082] 3A and 3C , the display panel 1 further includes reset signal lines RS1 and RS2 extending along the first direction X, each of which provides a reset signal to a subpixel P of a corresponding pixel array DP. The reset signal lines RS2 are separated from each other at an edge of the first display region 101 close to the peripheral region 202 and connected to a second signal line GS2, for example, the reset signal line RS2 is separated from each other at a point M and connected to a point N of the second signal line GS2 passing through the subpixel P of the next row, thereby mitigating the problem of limited wiring space in the peripheral region 202.

[0083] 3A and 3C, the display panel 1 further includes initialization signal lines VS1 and VS2 extending along a first direction X, each of which provides an initialization signal to a corresponding sub-pixel P of the pixel array DP. The initialization signal lines VS2 pass through the first sub-display area 101 and the second sub-display area 102. The initialization signal lines VS2 are separated at an edge of the first display area 101 near the peripheral area 202, for example, at a point S, thereby alleviating the problem of limited wiring space in the peripheral area 202.

[0084] For example, Figure 3D is an enlarged schematic diagram of a fourth side of the light-transmitting area of ​​a display panel provided according to at least another embodiment of the present disclosure. As shown in Figure 3D, the third signal line EM2 is wound on one side of the first sub-display area 101 and the second sub-display area 102 near the light-transmitting area 202 to improve display uniformity.

[0085] 3E is an enlarged schematic diagram of a first side of a light-transmitting region of a display panel provided according to at least another embodiment of the present disclosure. As shown in FIGS. 3B and 3E, the third signal line EM2 is separated on one side of the first sub-display region 101 and the second sub-display region 102 near the light-transmitting region 202 (as shown by the dotted line on the right side in FIG. 3E, EM22 may not be provided), thereby reducing the wiring density in the peripheral region 202.

[0086] 3A and 3C, the display panel 1 further includes power cables VDS1 and VDS2 extending along the second direction Y. For example, each of the power cables VDS1 and VDS2 provides a high-level signal to a corresponding sub-pixel P of the pixel array DP. The power cable VDS1 passes through the first sub-displaying area 101 and the third sub-displaying area 103, or the second sub-displaying area 102 and the third sub-displaying area 103. The power cable VDS2 passes through the fourth sub-displaying area 104, but is separated at the edge of the fourth sub-displaying area 104 near the fourth winding area R4 and does not pass through the fourth winding area R4, thereby reducing the wiring density in the peripheral area 202 of the opening.

[0087] Furthermore, when the third signal line EM2 and the initialization signal line VS2 are separated on one side of the first sub-display area 101 and the second sub-display area 102 close to the light-transmitting area 202, the display panel 1 can adopt double-sided driving, for example, by arranging gate driving circuits on both sides of the display panel 1, for example, on the left and right sides, and connecting them to the third signal line EM2 and the initialization signal line VS2 of the first sub-display area 101 and the second sub-display area 102, respectively.

[0088] For example, FIG. 4A is a schematic diagram of a display panel provided by at least another embodiment of the present disclosure. As shown in FIG. 4A, the first winding region R1 and the second winding region R2 may be arranged opposite each other in the first direction X, with the two regions having essentially the same design concept, e.g., symmetrically arranged. The third winding region R3 and the fourth winding region R4 may be arranged opposite each other, with the two regions having essentially the same design concept, e.g., symmetrically arranged. Note that, when describing the wiring of the first winding region R1 and the second winding region R2 later, the first winding region R1 will be used as an example, and the second winding region R2 will not be described in detail. When describing the wiring of the third winding region R3 and the fourth winding region R4 later, the fourth winding region R4 will be used as an example, and the third winding region R3 will not be described in detail.

[0089] For example, as shown in FIG. 4A, in some embodiments of the present disclosure, the distribution density of the first extension portions Y1 of the first signal line DS2 is lower than the distribution density of the first bend portions C1 of the first signal line DS2, and the distance between two adjacent first extension portions Y1 is larger than the distance between two adjacent first bend portions C1.

[0090] For example, as shown in FIG. 4A, in some embodiments of the present disclosure, the display panel further includes second signal lines, and the density of the second signal lines GS2 in the first winding region R1 (or the second winding region R2) is lower than the density of the second signal lines GS2 in the third winding region R3 (or the fourth winding region R4).

[0091] For example, FIG. 4B is a partially enlarged schematic diagram of the first and fourth sides of the light-transmitting region 201 of a display panel provided according to at least another embodiment of the present disclosure. As shown in FIG. 4B, the first winding region R1 further includes a first sub-region R11 (a dotted rectangular frame in the figure) and a second sub-region R12 (an oval frame in the figure). The distance X111 between the first sub-region R11 and the boundary AS of the display region 10 near the opening 201 is smaller than the distance X112 between the second sub-region R12 and the boundary AS of the display region 10 near the first winding region R1. In other words, the first sub-region R11 is closer to the display region 10 than the second sub-region R12. The distances X111 and X112 generally indicate the relative positions of the first sub-region R11 and the second sub-region R12.

[0092] In some embodiments of the present disclosure, as shown in FIG. 4B , the first sub-region R11 is a region where the orthogonal projection of the extending portion GS21 of the second signal line onto the base substrate intersects with the orthogonal projection of the first bent portion C1 of the first signal line DS2 onto the base substrate. In other words, the first sub-region R11 is a region where straight and arc-shaped wirings intersect with each other. The second sub-region R12 is a region where the orthogonal projection of the second bent portion GS22 onto the base substrate intersects with the orthogonal projection of the first bent portion C1 of the first signal line DS2 onto the base substrate. In other words, the second sub-region R12 is a region where arc-shaped wirings intersect with each other.

[0093] 4B , the density of the second signal lines GS2 and the first signal lines DS2 in the first sub-region R1 is lower than the density of the second signal lines GS2 and the first signal lines DS2 in the second sub-region R2, i.e., the density of the second signal line extension portions GS21 and the first bend portions C1 in the first sub-region R1 is lower than the density of the second bend portions GS22 and the first bend portions C1 in the second sub-region R2.

[0094] 4B , the first sub-region R11 is closer to the display region 10 than the second sub-region R12. That is, the first sub-region R11 has a position P where a straight line and an arc line intersect, and the distance between the position P and the display region is smaller than the distance between the display region and a position Q where the arc line intersects with the arc line in the second sub-region R12. The second sub-region R12, which has a higher wiring density, is farther from the display region 10 than the first sub-region R11, which can reduce the effect of high-density wiring in the peripheral region of the opening on the potential of the electrode (e.g., cathode) of the light-emitting element.

[0095] 4C is an enlarged schematic diagram of a first side of a light-transmitting region of a display panel provided according to at least another embodiment of the present disclosure. As shown in FIG. 4C, the second signal line extension portion GS21 includes a plurality of second extension overlapping portions ST1 that overlap projections of the first signal line DS2, such as the first bend portion C1. The second bend portion GS22 connected to the second signal line extension portion GS21 includes a second bend overlapping portion WT1 that overlaps projections of the first signal line DS2, such as the first bend portion C1.

[0096] For example, FIG. 4D is an enlarged schematic diagram of a fourth side of the light-transmitting region of a display panel provided according to at least another embodiment of the present disclosure. As shown in FIGS. 4C and 4D, the fourth winding region R4 further includes a third sub-region R41 (a dotted rectangular frame in the figure) and a fourth sub-region R42 (an oval frame in the figure). The distance X141 between the third sub-region R41 and the boundary AS of the display region 10 close to the light-transmitting region 201 is smaller than the distance X142 between the fourth sub-region R42 and the boundary AS of the display region 10 close to the fourth winding region R4. In other words, the third sub-region R41 is closer to the display region 10 than the fourth sub-region R42. Note that the distances X141 and X142 schematically indicate the relative positional relationship between the third sub-region R41 and the fourth sub-region R42. In the third sub-region R41, the orthogonal projection of the first extension portion Y1 (shown in FIG. 4C) onto the base substrate intersects with the orthogonal projection of the second bent portion GS22 of the second signal line GS2 onto the base substrate. That is, in the third sub-region R41, the straight and arc wirings intersect with each other. In the fourth sub-region R42, the orthogonal projection of the second bent portion GS22 onto the base substrate intersects with the orthogonal projection of the first bent portion C1 of the first signal line DS2 onto the base substrate. That is, in the fourth sub-region R42, the arc wirings intersect with each other.

[0097] For example, in at least one embodiment of the present disclosure, FIG. 4F is a schematic diagram of a light-transmitting region of a display panel provided by at least another embodiment of the present disclosure. As shown in FIGS. 4D and 4F, the density of the second signal lines GS2 and the first signal lines DS2 in the third sub-region R41 is lower than the density of the second signal lines GS2 and the first signal lines DS2 in the fourth sub-region R42. That is, the density of the first extending portions Y1 and the second bending portions GS22 in the third sub-region R41 is lower than the density of the second bending portions GS22 and the first bending portions C1 in the fourth sub-region R42. Because the fourth sub-region R42, which has a higher wiring density, is farther away from the display region 10 than the third sub-region R41, the influence of high-density wiring in the peripheral region of the opening on the potential of the electrodes (e.g., cathodes) of the light-emitting elements can be reduced.

[0098] FIG. 5 is a schematic cross-sectional view of a display region of a display panel provided by at least one embodiment of the present disclosure. As shown in FIG. 5, the display panel 1 includes a barrier layer 209, a buffer layer 211, a first insulating layer 212 (e.g., a first gate insulating layer), a second insulating layer 213 (e.g., a second gate insulating layer), a third insulating layer 214 (e.g., an interlayer gate insulating layer), and a passivation layer 215 (e.g., an inorganic passivation layer). The barrier layer 209 is disposed on the base substrate 100, and the buffer layer 211 is disposed on one side of the barrier layer 209 away from the base substrate 100. Each of the plurality of pixel driving circuit units P in the display region 10 includes a subpixel driving circuit 260. The subpixel driving circuit 260 may be connected to a second signal line GS1, a first signal line DS1, a third signal line EM1, etc. The subpixel driving circuit 260 includes a first transistor T1 and a light-emitting element 26. The first transistor T1 is connected to the light-emitting element 26, and is configured to provide a light-emitting drive signal to the light-emitting element 26. The display panel 1 may further include a first planarization layer 232, a first adapter electrode 241, and a second planarization layer 251.

[0099] For example, the first adapter electrode 241 can be made of the same material as the source / drain electrodes of the transistor, such as one or more of copper (Ti), aluminum (Al), titanium (Ti), copper (Cu), and molybdenum (Mo), and may have, for example, a titanium aluminum titanium (Ti / Al / Ti) stacked structure.

[0100] For example, the first transistor T1 can be a thin film transistor, a field effect transistor, or other switching devices with the same characteristics, and the thin film transistor is taken as an example here.

[0101] 5 , the first transistor T1 includes an active layer 222 on a buffer layer 211, a first insulating layer 212 on one side of the active layer 222 away from the base substrate 100, a gate 223 on the first insulating layer 212, a second insulating layer 213 on one side of the gate 223 away from the base substrate 100, a third insulating layer 214 on the second insulating layer 213, and two source-drain electrodes (including a source 224 and a drain 225) on the third insulating layer 214. The buffer layer 211 functions as a transition layer that can prevent harmful substances in the base substrate from penetrating into the display panel and can increase the adhesion of film layers in the display panel to the base substrate 100. The barrier layer 1012 can prevent impurities such as water and oxygen from penetrating from the base substrate 100 to functional structures such as the first transistor T1, and the barrier layer 209 and the buffer layer 211 can protect other functional structures on the base substrate. For example, the material of the barrier layer 209 and the buffer layer 211 can include an insulating material such as silicon oxide, silicon nitride, silicon oxynitride, etc. One or more materials of the third insulating layer 214, the second insulating layer 213, and the first insulating layer 212 can include an insulating material such as silicon oxide, silicon nitride, silicon oxynitride, etc. The materials of the third insulating layer 214, the second insulating layer 213, and the first insulating layer 212 can be the same or different.

[0102] For example, as shown in FIG. 5 , a passivation layer 215 is located on one side of the first transistor T1 away from the base substrate and includes a via hole to expose one of the source 224 and the drain 225, e.g., the source 224. The passivation layer 215 can prevent the source 224 and the drain 225 of the first transistor T1 from being corroded by water vapor. For example, the material of the passivation layer 215 can include an organic insulating material or an inorganic insulating material, such as silicon nitride, which has a high dielectric constant and good hydrophobicity, and can adequately protect the pixel driving circuit 221 from corrosion by water vapor. Note that the passivation layer 215 is an optional film layer. In other embodiments, the passivation layer 215 may not be disposed, and the embodiments of the present disclosure are not limited thereto.

[0103] 3F is a schematic cross-sectional view taken along A2-B2 of FIG. 3D provided by at least one embodiment of the present disclosure, FIG. 3G is a schematic cross-sectional view taken along A1-B1 of FIG. 3E provided by at least one embodiment of the present disclosure, and FIG. 3H is a schematic cross-sectional view taken along C1-C2 of FIG. 3E provided by at least one embodiment of the present disclosure.

[0104] 3A and 3D, the display panel may further include an initialization signal line VS3 surrounding the light-transmitting region 201. A crossing line A2-B2 in FIG. 3D passes through the initialization signal line VS3, the first signal line DS2, the second signal line GS1 (extending along the first direction X), and the first extending portion Y1.

[0105] 3D and 3F, the first extension portion Y1 of the first signal line DS2 is located on one side of the fourth insulating layer 232 (e.g., the first planarization layer 232 in FIG. 5, which will be described in detail later) away from the base substrate 100 in the peripheral region 202, for example, Y1-10 is taken as an example and is located on one side of the first planarization layer 232 away from the base substrate 100. The first signal line DS2, for example, the main body portion DS of the first signal line, is provided between the third insulating layer 214 and the fourth insulating layer 232 in the display region 10, and the first extension portion Y1 of the first signal line DS2 is connected to the portion of the main body portion DS of the first signal line in the display region 10 through a via hole that penetrates the fourth insulating layer 232 in the peripheral region 202. If the display panel includes a passivation layer 215 (not shown), in the peripheral region 202, the first extension Y1 of the first signal line DS2 is connected to a portion of the first signal line DS2 in the display region 10 through a via hole that penetrates the fourth insulating layer 232 and the passivation layer 215.

[0106] For example, as shown in Figures 3D and 3F, the initialization signal line VS3 and the first extending portion Y1 are disposed in the same layer, i.e., on one side of the fourth insulating layer 232 away from the base substrate 100. The passivation layer 215 in Figure 3G is an optional film layer. In other embodiments, the passivation layer 215 may not be disposed, and the embodiments of the present disclosure are not limited thereto. Figure 3D is a partial schematic diagram of one side of the light-transmitting region 201. If there is a display region at a position of the light-transmitting region 201 opposite this portion, the layer change method of the first signal line DS2 may or may not coincide with this region, and the embodiments of the present disclosure are not limited thereto.

[0107] For example, as shown in FIG. 3D, adjacent first extension portions Y1, e.g., Y1-10, Y1-9, may be provided on different film layers, for example, Y1-9 may be provided on the same film layer as the main body portion DS electrically connected thereto, that is, adjacent first extension portions Y1 may be provided on different film layers, thus saving wiring space.

[0108] 3F, the display panel may include a dummy adapter portion DS2′, which is located in the same layer as the portion of the first signal line DS2 in the display area 10 (e.g., the third sub-display area 103 or the fourth sub-display area 104), i.e., the first signal line body portion DS, i.e., between the third insulating layer 214 and the fourth insulating layer 232. The dummy adapter portion DS2′ can make the pattern design of the layer change position of the first signal line DS2 uniform and ensure etching uniformity.

[0109] 3C and 12A , in some embodiments of the present disclosure, the length L1 (e.g., L1-1, L1-2...L1-10) of the first extension portion Y1, the vertical distance H1 between it and the second electrode 263, and S1 (the overlapping area of ​​the first connection portion and the first extension portions of the n first signal lines when orthogonally projected onto the base substrate) satisfy the formula H1=k*(S1 / n) / L1, where k is a natural number from 1 to 20 or may also be a real number from 1 to 20. In specific implementations, depending on the thickness requirements of the panel itself, k may be, for example, 1 to 10, 1 to 15, or a natural or real number between 2 to 10, 2 to 8, 2 to 6, 2 to 4, 3 to 12, 3 to 9, 3 to 6, or 3 to 5. In this way, the thickness of the panel can be made as thin as possible when the influence of the driving circuit signal line (e.g., the first signal line), the light-emitting layer electrode (e.g., the cathode), or between the driving circuit signal line (e.g., the first signal line), the light-emitting layer electrode (e.g., the cathode), and the touch layer (e.g., the first connection portion) around the light-transmitting area is smaller.

[0110] In some embodiments of the present disclosure, as shown in FIGS. 3D and 12A , the vertical distance between the first connection portion Rx1 and the second electrode is H2, the area of ​​the first extension portion of one of the n first signal lines DS2 is A1, and the area of ​​the first connection portion Rx1 is A2, where H2≧(1 / k1)*(A2 / nA1)*H1, k1 is a natural number between 5 and 180, and k1 may be a real number between 5 and 180.

[0111] For example, the vertical distance H2 between the first connection portion Rx1 and the second electrode 263 may be the vertical distance between the surface of the first connection portion Rx1 and the second electrode 263, or the vertical distance between the bottom surface of the first connection portion Rx1 and the second electrode 263, or the vertical distance between a position at half the thickness of the first connection portion Rx1 and the second electrode 263. This is not limited to the embodiments of the present disclosure.

[0112] For example, taking into consideration the size of the light-transmitting region 202, holes with a diameter of 2 μm to 5 μm may be drilled in the light-transmitting region 202, and depending on the number of missing pixels, the value of n may be an integer between 1 and 20, such as 5, 6, 7, 8...15. The size of the first connection portion Rx1 in the second direction Y may be, for example, 50 μm to 600 μm, and the size in the first direction X may be 50 μm to 200 μm. According to the size of the light-transmitting region 202, different sizes are designed, and the area A2 of the first connecting portion Rx1 is approximately equal to the size of the first connecting portion Rx1 in the first direction X multiplied by its size in the second direction, and k1 is a natural number between 5 and 180, or k1 can be a real number between 5 and 180. When n, A1, A2, and H1 are constant, H2 is adjusted according to the range of k1, which is a natural number or real number between 5 and 180. For example, the value of k1 can be a natural number or real number between 5 and 10, 10 and 20, 20 and 30, 30 and 40, ... 170 and 180.

[0113] In some embodiments of the present disclosure, the resistivity of at least one first extension portion of the n first signal lines DS2 is ρ1, and the resistivity of the first connection portion Rx1 is ρ2. H2≧(1 / k1)*(A2*ρ1 / nA1*ρ2)*H1, where k1 is a natural number between 5 and 180, and k1 may also be a real number between 5 and 180.

[0114] In some embodiments of the present disclosure, the resistivity of at least one first extension portion in the n first signal lines DS2 is ρ1, the resistivity of the first connection portion is ρ2, H2≧(1 / k1)*(A2*ρ1 / nA1*ρ2)*H1, k1 may be a natural number between 5 and 180, and k1 may be a real number between 5 and 180.

[0115] In the embodiments of the present disclosure, "*" denotes a multiplication symbol.

[0116] For example, the material of the first extension portion Y1 and the first connection portion Rx1 is a metal such as one or a combination of titanium (Ti), aluminum (Al), copper (Cu), and molybdenum (Mo). For example, the material of the first extension portion Y1 and the first connection portion Rx1 may be the same or different. For example, the material of both the first extension portion Y1 and the first connection portion Rx1 may be a three-layer structure of aluminum titanium aluminum (Ti / Al / Ti).

[0117] For example, as shown in FIG. 3E , the third signal line EM2 may not be separated from the first sub-display area 101 or the second sub-display area 102 on one side thereof near the light-transmitting area 202. After passing through the first sub-display area 101 along the first direction X, the third signal line EM2 changes wiring layers when it enters the peripheral area 202. If the third signal line EM2 is not separated from the first sub-display area 101 or the second sub-display area 102 on one side thereof near the light-transmitting area 202, a gate driving circuit is disposed on one side of the display panel 1 to connect the third signal line EM2 connecting the first sub-display area 101 and the second sub-display area 102. The portion of the third signal line EM2 in the peripheral area 202 includes a third signal line extension portion EM21 and a third bend portion EM22. The wiring method of the third signal line extension portion EM21 and the third bend portion EM22 may be the same as the wiring method of the second extension portion GS21 and the second bend portion GS22 of the second signal line GS2, and will not be described repeatedly in the embodiments of the present disclosure. The crossing line C1-C2 in Figure 3E passes through the third signal line EM2, the third signal line extension portion EM21, the initialization signal line VS3, etc.

[0118] 3E, the second signal line extension portion GS21 further includes a second widened portion E2 electrically connected to the display area, and the second signal line extension portion GS21 is electrically connected to the second signal line GS2 in the display area, for example, the second signal line main body portion GS, at the position of the second widened portion E2.

[0119] For example, as shown in FIGS. 3E and 3G, the display panel includes a second adapter portion LS1 provided between the third insulating layer 214 and the fourth insulating layer 232. The second signal line extension portion GS21 of the second signal line GS2 is provided in the peripheral region 202 between the second insulating layer 213 and the third insulating layer 214, and the portion of the second signal line GS2 in the display region 10, i.e., the second main body portion GS, is provided between the first insulating layer 212 and the second insulating layer 213. One end of the second adapter portion LS1 is connected to the second signal line extension portion GS21 through a via hole that penetrates the third insulating layer 214, and the other end of the second adapter portion LS1 is connected to the main body portion GS of the second signal line GS2 through a via hole that penetrates the third insulating layer 214 and the second insulating layer 213. The third signal line EM2 and the reset signal line RS2 are also provided between the first insulating layer 212 and the second insulating layer 213. The second adapter part LS1 is also connected to the reset signal line RS2 through a via hole that penetrates the third insulating layer. The initialization signal line VS2 is provided between the second insulating layer 213 and the third insulating layer 214. The initialization signal line VS3 is provided from the base substrate 100 to one side of the fourth insulating layer 232.

[0120] 3E and 3F , the display panel includes a third adapter portion LS2 provided between the third insulating layer 214 and the fourth insulating layer 232. The third signal line extension portion EM21 of the third signal line EM2 is provided between the second insulating layer 213 and the third insulating layer 214 in the peripheral region 202, and a portion of the third signal line EM2 in the display region 10 is provided between the first insulating layer 212 and the second insulating layer 213. One end of the third adapter portion LS2 is connected to the third signal line extension portion EM21 of the third signal line EM2 through a via hole that penetrates the third insulating layer, and the other end of the third adapter portion LS2 is connected to the portion of the second signal line EM2 in the display region 10 through a via hole that penetrates the third insulating layer 214 and the second insulating layer 213. The third adapter part LS2 shown in the figure is connected to two second signal lines EM2 (located in different rows), and the initialization signal line VS3 is located on one side of the fourth insulating layer 232 away from the base substrate 100.

[0121] It should be noted that the passivation layer 215 (not shown) in Figures 3G and 3H is an optional film layer, and in other embodiments, the passivation layer 215 may not be disposed, and the embodiments of the present disclosure are not limited thereto.

[0122] It should be noted that the main body portion DS of the first signal line, the main body portion GS of the second signal line, and the third signal line EM2 within the display area 10 can be understood to be basically located within the display area; in other words, at least one of the signal lines may be partially disposed within a dummy pixel area; for example, as shown in Figures 3D and 3E, in a pixel unit close to the light-transmitting area 201, at least one row or one column of pixels closest to the light-transmitting area 201 may be designed as dummy pixels (not used for displaying the screen); in this case, the main body portion of each signal line, for example, the main body portion DS of the first signal line, may still be electrically connected to the corresponding dummy pixel and extend to the peripheral area 202 to be electrically connected to the corresponding extension portion, for example, Y1; the second signal line and the third signal line are the same and will not be described again.

[0123] It should be noted that the dummy pixel region in the embodiment of the present disclosure is a region that includes dummy pixels (not used for display on the screen).

[0124] For example, as shown in Figures 3F and 3G, the distance X10 between the main body portion GS of the second signal line GS2 and the base substrate 100, and the distance X20 between the second signal line extension portion GS21 of the second signal line GS2 in the peripheral region 202 and the base substrate 100 are smaller than the distance between the first signal line DS2 and the base substrate 100, for example, the distance X30 between the first extension portion Y1 of the first signal line DS2 in the peripheral region 202 and the base substrate 100.

[0125] Note that the "distance" in the embodiments of the present disclosure refers to the distance between the bottom surface of two film layers A and B, the distance between the top surface of film layer A and the top surface of film layer B, or the distance between the top surface of film layer A and the bottom surface of film layer B, or the distance between the top surface of film layer A and the bottom surface of film layer B, or the distance between the positions of the average thicknesses of film layers A and B. The present disclosure is not limited thereto, and it is only necessary to use the same standard when comparing distances. For example, as shown in Figures 3F and 3G, distance comparison is performed using a position at half the thickness of the members being compared as the standard.

[0126] It should be noted that the film thickness measurement has an error within an error range such as 25%, and limited position points can be selected to measure the average value, but this disclosure is not limited thereto.

[0127] In addition, taking into consideration measurement errors, the "length, width, thickness, distance, etc." in this disclosure can tolerate a measurement error of 25% or less.

[0128] For example, a portion of the main body DS of the first signal line DS2 provided between the third insulating layer 214 and the fourth insulating layer 232 in the display area 10 (which may include a portion of the dummy pixel area extending outside the effective display area) may be formed in the same layer as the source 224 and drain 225 of the first transistor T1, for example, by a patterning process in the same material layer, thereby simplifying the manufacturing process.

[0129] For example, the portion of the main body portion GS of the second signal line GS2 that is within the display area 10 (which may include a portion of the dummy pixel area extending outside the effective display area) may be formed in the same layer as the gate 223 of the first transistor T1, e.g., formed by a patterning process in the same material layer, thereby simplifying the manufacturing process.

[0130] In some embodiments of the present disclosure, the display panel further includes second signal lines GS2 configured to provide second signals to a plurality of pixel driving circuit units P, and the projections of the m second signal lines GS2 onto the first connection portion Rx1 and the base substrate 100 overlap, with the overlap area being S5, where S5>S2.

[0131] For example, as shown in Figures 3D and 3E, the second signal line GS2 is a scanning signal line, such as a gate scanning signal line GS22 or a reset signal line RS2, and the projections of the first connection portion Rx1 and the m second signal lines GS2 onto the base substrate 100 overlap, and for example, the overlapping areas with the projections of the m second signal lines GS2 are S5-1, S5-2...S5-m, where S5 is the sum of S5-1, S5-2...S5-m, and S5>S2.

[0132] For example, the projections of the first connection portion Rx1 and the m number of second signal lines GS2 onto the base substrate 100 overlap, and the overlapping areas with the projections of the m number of second signal lines GS2 are S5-1, S5-2....S5-m, where S5 is the sum of S5-1, S5-2...S5-m, and S2 is smaller than (3 / 4)S5, (2 / 3)S5, (1 / 2)S5, etc.

[0133] In some embodiments of the present disclosure, among n first signal lines DS2, the distance between the first extension portions Y1 of two adjacent first signal lines DS2 is b1, among m second signal lines GS2, the spacing between the overlapping regions of two adjacent second signal lines and the first connection portion Rx1 is b2, and the distance between at least one second signal line and the second electrode is H5, where b1>(H5 / H1)*b2.

[0134] For example, the distance between the first extension portions Y1-1, Y1-2 of two adjacent first signal lines DS2 is b1, the spacing between the overlapping region of two adjacent second signal lines GS2-1, GS2-2 among the m second signal lines GS2 and the first connection portion Rx1 is b2, the distance between at least one second signal line GS2-1 and the second electrode 263 is H5, and b1>(H5 / H1)*b2.

[0135] In some embodiments of the present disclosure, the area of ​​the overlapping region on the base substrate between m second signal lines GS2 and the first connection portion Rx1 is A3, the area of ​​the first connection portion Rx1 is A2, the vertical distance between the first connection portion Rx1 and the second electrode is H2, H2≧(1 / k2)*(A2 / A3)*H5, k2 is a natural number between 1 and 15, and k2 may be a real number between 1 and 15.

[0136] For example, the area of ​​the overlapping region on the base substrate between m second signal lines GS2-1, GS2-2......GS2-m and the first connection portion Rx1 is A3-1, A3-2......A3-m, A3 is the sum of A3-1, A3-2......A3-m, the area of ​​the first connection portion Rx1 is A2, and for example, to simplify the calculation, A2 can be approximately the size in the first direction X multiplied by the size in the second direction Y. For example, A2 may be the actual occupied area of ​​the first connection portion Rx1, and H2 satisfies the formula H2≧(1 / k2)*(A2 / A3)*H5, where k2 is a natural number or real number between 1 and 15, for example, k2 is a natural number or real number between 1 and 5, or between 5 and 10, or between 10 and 15. That is, the minimum value of the vertical distance H2 between the first connection portion Rx1 and the second electrode 263 must at least satisfy the above formula, thereby reducing the influence between the second signal line GS2, the first connection portion Rx1, and the second electrode 263. Furthermore, taking into consideration that the value of H2 should not be too large, for example, H2 may be less than 10-16 μm. In specific implementation, it can be adjusted according to actual needs, and is not limited in the present disclosure.

[0137] In some embodiments of the present disclosure, the resistivity of at least one of the m second signal lines GS2 is ρ3, the resistivity of the first connection portion Rx1 is ρ2, H2≧(1 / k2)*(A2*ρ3 / A3*ρ2)*H5, k2 is a natural number between 1 and 15, and k2 may be a real number between 1 and 15.

[0138] For example, the material of the second signal line GS2 and the first connecting portion Rx1 may be a metal such as one or a combination of titanium (Ti), aluminum (Al), copper (Cu), and molybdenum (Mo). For example, the materials of the second signal line GS2 and the first connecting portion Rx1 may be the same or different. For example, the materials of the second signal line GS2 and the first connecting portion Rx1 may both be a three-layer structure of titanium aluminum titanium (Ti / Al / Ti). That is, the minimum value of the vertical distance H2 between the first connecting portion Rx1 and the second electrode 263 must at least satisfy the above formula, thereby reducing the influence between the second signal line GS2, the first connecting portion Rx1, and the second electrode 263. Considering the material properties of the signal line, selecting a material with a higher resistivity can reduce the minimum value of H2, thereby reducing the overall panel thickness to some extent.

[0139] 5, the active layer 222 includes a source region, a drain region, and a channel region between the source and drain regions. Via holes are provided in the third insulating layer 214, the second insulating layer 213, and the first insulating layer 212 to expose the source and drain regions. The source and drain are electrically connected to the source and drain regions through the via holes in the third insulating layer 214, the second insulating layer 213, and the first insulating layer 212, respectively. In a direction perpendicular to the base substrate 100, the gate 223 overlaps the channel region between the source and drain regions of the active layer 222.

[0140] 5, a first planarization layer 232 (i.e., a fourth insulating layer) is positioned on one side of the source 224 and the drain 225 away from the base substrate 100, and provides a first planarization surface for planarizing the surface of the subpixel driving circuit 260 on one side away from the base substrate 100. The first planarization layer 232 can planarize an uneven surface caused by the subpixel driving circuit 260, thereby preventing irregularities caused by the subpixel driving circuit 260 from causing defects in the light-emitting element. A via hole is formed in the first planarization layer 232 to expose the source 224 or the drain 225 (in the illustrated example, the source 224 is exposed), and a first adaptor electrode 241 is formed on one side of the first planarization layer 232 away from the base substrate 100. The first adaptor electrode 241 is electrically connected to the source 224 (or the drain 225) through the via hole in the first planarization layer 232 and the via hole in the passivation layer. The first adapter electrode 241 can avoid directly forming a straight via hole with a relatively large diameter in the first planarization layer 232, thereby improving the quality of the electrical connection of the via hole; at the same time, the first adapter electrode 241 can be formed in the same layer as other signal lines (e.g., power cables, etc.), without increasing the process steps.

[0141] For example, the portion of the first planarization layer 232 in the peripheral region 202 of the first extension portion Y1 of one first signal line DS2 that is away from the base substrate may be formed in the same layer as the first adapter electrode 241, for example, formed by a patterning process in the same material layer, thereby simplifying the manufacturing process.

[0142] For example, the material of the first planarization layer 232 may include inorganic insulating materials such as silicon oxide, silicon nitride, silicon oxynitride, etc., and may also include organic insulating materials such as polyimide, polyphthalimide, polyphthalamide, acrylic resin, and benzocyclobutene or phenolic resin, etc. These are not limited to the embodiments of the present disclosure.

[0143] For example, the material of the first adapter electrode 241 can include metal or alloy materials, such as a metal single layer or multi-layer structure formed by molybdenum, aluminum, titanium, and the like.

[0144] For example, the material of the active layer 222 can include polysilicon or an oxide semiconductor (e.g., indium gallium zinc oxide). The material of the gate 223 can include a metal or alloy material, such as a metal single layer or multilayer structure formed of molybdenum, aluminum, or titanium. For example, the multilayer structure can be a multi-metal stack (e.g., a three-layer metal stack of titanium, aluminum, and titanium (Ti / Al / Ti)). The material of the source 224 and the drain 225 can include a metal or alloy material, such as a metal single layer or multilayer structure formed of molybdenum, aluminum, or titanium. For example, the multilayer structure can be a multi-metal stack (e.g., a three-layer metal stack of titanium, aluminum, and titanium (Ti / Al / Ti)). The embodiments of the present disclosure do not specifically limit the materials of each functional layer.

[0145] 5, the second planarization layer 251 is positioned on one side of the first adapter electrode 241 away from the base substrate 100 to provide a planarized surface on the side of the first adapter electrode 241 away from the base substrate 100. Via holes are formed in the second planarization layer 251.

[0146] For example, the material of the second planarization layer 251 can include inorganic insulating materials such as silicon oxide, silicon nitride, silicon oxynitride, etc., and organic insulating materials such as polyimide, polyphthalimide, polyphthalamide, acrylic resin, benzocyclobutene, or phenolic resin, and is not limited to these in the embodiments of the present disclosure.

[0147] 5, the size of the first planarization layer 232 in a direction perpendicular to the base substrate 200 is about 0.5 to 1.5 microns, e.g., about 0.7 microns, where the word "about" means that the value may vary within a range of, for example, ±15%, or for example, ±25%. In the direction perpendicular to the base substrate 200, the size of the second planarization layer 251 is about 0.5 to 1.7 microns, e.g., about 0.8 microns, where the word "about" means that the value may vary within a range of, for example, ±15%, or for example, ±25%. That is, the thickness of the first planarization layer 232 is about 0.5 to 1.5 microns, and the thickness of the second planarization layer 251 is about 0.5 to 1.7 microns.

[0148] In some embodiments of the present disclosure, as still shown in FIG. 5 , the light-emitting element 26 is disposed on the second planarization layer 251, i.e., the light-emitting element 26 is located on one side of the second planarization layer 251 away from the base substrate 100. The light-emitting element 26 includes a first electrode 261 (e.g., an anode), a light-emitting layer 262, and a second electrode 263 (e.g., a cathode). The first electrode 261 of the light-emitting element 26 is electrically connected to the first adapter electrode 241 through a second via hole 252 in the second planarization layer 251. A pixel definition layer 216 is formed on one side of the first electrode 261 away from the base substrate 100. The pixel definition layer 216 includes a plurality of openings K for defining a plurality of pixel driving circuit units P, and the plurality of openings K correspond one-to-one to a plurality of sub-pixels. Each of the openings K exposes the first electrode 261, and the light-emitting layer 262 is disposed in the opening K of the pixel definition layer 216. The second electrode 263 may, for example, be provided within part or the entire display area, for example extending in the peripheral area 202 and formed over the entire surface during the manufacturing process.

[0149] For example, the first electrode 261 may include a reflective layer, and the second electrode 263 may include a transparent or semi-transparent layer. Therefore, the first electrode 261 can reflect light emitted from the light-emitting layer 262, and this portion of the light is emitted to the external environment through the second electrode 263, thereby increasing the light-emitting efficiency. If the second electrode 263 includes a semi-transparent layer, a portion of the light reflected by the first electrode 261 is reflected again by the second electrode 263, so that the first electrode 261 and the second electrode 263 form a resonant structure, thereby improving the light-emitting efficiency.

[0150] For example, the material of the first electrode 261 can include at least one transparent conductive oxide material, including indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), etc. The first electrode 261 can also include a metal with high reflectivity, such as silver (Ag), as a reflective layer.

[0151] For example, in the case of an OLED, the light-emitting layer 262 can include small molecule organic materials or polymer molecule organic materials, which can be fluorescent or photoluminescent materials capable of emitting red, green, blue, or white light. If necessary, the light-emitting layer can further include functional layers, such as an electron injection layer, an electron transport layer, a hole injection layer, and a hole transport layer. In the case of a QLED, the light-emitting layer can include quantum dot materials, such as silicon quantum dots, germanium quantum dots, cadmium sulfide quantum dots, cadmium selenide quantum dots, cadmium telluride quantum dots, zinc selenide quantum dots, lead sulfide quantum dots, lead selenium quantum dots, indium phosphide quantum dots, and indium arsenide quantum dots, with particle sizes ranging from 2 to 20 nm.

[0152] For example, the second electrode 263 can include various conductive materials. For example, the second electrode 263 can include metallic materials such as lithium (Li), aluminum (Al), magnesium (Mg), and silver (Ag).

[0153] For example, the material of the pixel defining layer 216 can include an organic insulating material such as polyimide, polyphthalimide, polyphthalamide, acrylic resin, benzocyclobutene, or phenolic resin, or can include an inorganic insulating material such as silicon oxide, silicon nitride, etc. The embodiments of the present disclosure are not limited thereto.

[0154] 5, the display panel 1 further includes a storage capacitor 27, which may include a first capacitive electrode 271 and a second capacitive electrode 272. The first capacitive electrode 271 is disposed between the first insulating layer 212 and the second insulating layer 213, and the second capacitive electrode 272 is disposed between the second insulating layer 213 and the third insulating layer 214. The first capacitive electrode 271 and the second capacitive electrode 272 are disposed to overlap each other and at least partially overlap each other in a direction perpendicular to the base substrate 100. The first capacitive electrode 271 and the second capacitive electrode 272 form a storage capacitor using the second insulating layer 213 as a dielectric material. Because the first capacitive electrode 271 and the gate 223 of the first transistor T1 are located on the same layer, the first capacitive electrode 271 and the gate 223 can be formed on the same layer during the manufacturing process, for example, by a patterning process on the same material layer, thereby simplifying the manufacturing process and reducing the manufacturing cost of the product.

[0155] For example, the portion of the second signal line GS2 within the display area 10 (e.g., the first sub-display area 101 or the second sub-display area 102) may be formed in the same layer as the second capacitive electrode 272, for example, by a patterning process in the same material layer, thereby simplifying the manufacturing process.

[0156] In another example, as a modification of the example shown in FIG. 5 , the first capacitive electrode 271 of the storage capacitor is still disposed on the same layer as the gate 223, and the second capacitive electrode 272 of the storage capacitor is disposed on the same layer as the source 224 and drain 225 in the pixel driving circuit 221, so that the first capacitive electrode 271 and the second capacitive electrode 272 form the storage capacitor using the stack of the second insulating layer 213 and the third insulating layer 214 as the dielectric material.

[0157] In yet another example, as a modification of the example shown in FIG. 5 , the first capacitive electrode 271 of the storage capacitor is no longer located on the same layer as the gate 223, but is located between the second insulating layer 213 and the third insulating layer 214, the second capacitive electrode 272 of the storage capacitor is located on the same layer as the source 224 and the drain 225 of the pixel driving circuit 221, and the first capacitive electrode 271 and the second capacitive electrode 272 form the storage capacitor using the third insulating layer 214 as a dielectric material.

[0158] For example, as shown in FIG. 5 , the display panel 1 further includes an encapsulation layer 217. The encapsulation layer 217 is located on one side of the light-emitting element 26, away from the base substrate 100. The encapsulation layer 217 encapsulates the light-emitting element 26, thereby reducing or preventing deterioration of the light-emitting element 26 caused by moisture and / or oxygen in the environment. The encapsulation layer 217 may have a single-layer structure or a composite layer structure including a laminated structure of an inorganic layer and an organic layer. The encapsulation layer 217 includes at least one sub-encapsulation layer. For example, the encapsulation layer 217 may include a first inorganic encapsulation layer 2173, a first organic encapsulation layer 2172, and a second inorganic encapsulation layer 2171, which are sequentially arranged.

[0159] For example, the material of the encapsulation layer 217 can include insulating materials such as silicon nitride, silicon oxide, silicon oxynitride, and polymer resin. Inorganic materials such as silicon nitride, silicon oxide, and silicon oxynitride have high density and can prevent the intrusion of water and oxygen. The material of the organic encapsulation layer can be a polymer material containing a desiccant or a polymer material that can block water vapor. For example, a polymer resin can be used to flatten the surface of the display panel and relieve stress in the first inorganic encapsulation layer and the second inorganic encapsulation layer. It can also include a water-absorbing material such as a desiccant to absorb substances such as water and oxygen that invade the interior.

[0160] 5, the display panel 1 further includes a sixth insulating layer 218 disposed in the display area 10. The sixth insulating layer 218 is located on one side of the encapsulating layer 217 away from the base substrate 100, covers the encapsulating layer 217, and provides a flat surface on the one side of the encapsulating layer 217 away from the base substrate 100.

[0161] For example, the material of the sixth insulating layer 218 can include an organic insulating material such as polyimide, polyphthalimide, polyphthalamide, acrylic resin, benzocyclobutene, or phenolic resin, or an inorganic insulating material such as silicon oxide or silicon nitride, for example, the sixth insulating layer 218 can be silicon oxide, the sixth insulating layer 218 can be silicon nitride, or the sixth insulating layer 218 can be a silicon oxide / silicon nitride stack. The embodiment of the present disclosure is not limited thereto.

[0162] 12A , in the peripheral region 202, the distance between the first extension Y1 of the first signal line DS2 (e.g., located between the third insulating layer 214 and the fourth insulating layer 232, with no layer change) and the second electrode 263 is H1, the distance between the first extension Y1 of the first signal line DS2 (located on one side of the fourth insulating layer 232 away from the base substrate, with a layer change) and the second electrode 263 is X32, and the distance between the second extension Y1 of the second signal line GS2 between the second insulating layer 213 and the third insulating layer 214 is X32. The distance between the bent portion GS22 (where the layer has been changed) and the second electrode 263 is X33, and the distance between the bent portion GS22 (where the layer has not been changed) of the second signal line GS2 on one side of the second insulating layer 213 closer to the base substrate 100 and the second electrode 263 is H5, where the distance H5 is greater than the distance H1 and X33 is greater than X32, so that the distance between the second signal line and the second electrode such as the cathode is greater than the distance between the first signal line and the second electrode.

[0163] As shown in FIG. 12A , the distance between the second electrode 263 and the portion of the bent portion GS22 of the second signal line GS2 between the second insulating layer 213 and the third insulating layer 214 (where the layer has been changed) is X33, the distance between the second electrode 263 and the portion of the bent portion GS22 of the second signal line GS2 on one side of the second insulating layer 213 closer to the base substrate 100 (where the layer has not been changed) is H5, and the distance between the first extended portion Y1 of the first signal line DS2 (for example, the portion of the fourth insulating layer 232 extending from the base substrate The distance between the second signal line GS2 and the second electrode 263 is X32, and the distance between the bent portion GS22 of the second signal line GS2 (located on one side away and having a changed layer) between the second insulating layer 213 and the third insulating layer 214 and the second electrode 263 is X33. The distance H5 is greater than the distance H1, and X33 is greater than X32. Therefore, the distance between the second signal line and the second electrode, such as a cathode, is greater than the distance between the first signal line and the second electrode.

[0164] For example, as shown in FIG. 5 , the display panel 1 further includes a touch layer 28. The touch layer 28 includes a first touch pattern layer 282, a second touch pattern layer 281, and a touch insulating layer 283 located on one side of the sixth insulating layer 218 away from the base substrate. The first touch pattern layer 282 includes first touch signal lines Rx and second touch signal lines Tx that are alternately connected, and the second touch pattern layer 281 is located on one side of the first touch pattern layer 282 closer to the base substrate. The touch insulating layer 283 is located between the first touch pattern layer 282 and the second touch pattern layer 281. The second touch pattern layer 281 includes a plurality of first adapter parts RL, which are located at positions where the first touch signal lines Rx and the second touch signal lines Tx intersect with each other, and which are electrically connected to the first touch signal lines Rx through via holes that penetrate the touch insulating layer 283. In a direction perpendicular to the surface of the substrate 200, the second touch signal lines Tx and the first touch signal lines Rx overlap each other to form a touch sensor, and a touch sensor is also formed between adjacent second touch signal lines Tx and first touch signal lines Rx.

[0165] For example, in another embodiment, the first touch pattern layer 282 and the second touch pattern layer 281 may include a second touch signal line Tx and a first touch signal line Rx, respectively, where the second touch signal line Tx is electrically connected to the first touch signal line Rx through a via hole penetrating the touch insulating layer 283, and the first touch signal line Rx is continuous. In this case, there is no need to arrange the first adapter part RL. In a direction perpendicular to the surface of the substrate 200, the second touch signal line Tx and the first touch signal line Rx overlap each other to form a touch sensor, and a touch sensor is also formed between the adjacent second touch signal line Tx and first touch signal line Rx.

[0166] For example, the first touch pattern layer 282 and the second touch pattern layer 281 are made of a transparent conductive material. For example, the transparent conductive material may be a transparent conductive metal oxide material such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), aluminum zinc oxide (AZO), indium gallium zinc oxide (IGZO), etc. For example, in another example, the second touch signal line Tx and the first touch signal line Rx may have a metal mesh structure, and the material of the metal mesh may be, for example, gold (Au), silver (Ag), copper (Cu), aluminum (Al), molybdenum (Mo), magnesium (Mg), tungsten (W), or an alloy material of the above metals.

[0167] For example, Fig. 6A is a schematic diagram of a touch layer of a display panel provided by at least one embodiment of the present disclosure, Fig. 6B is a schematic diagram of a touch layer of a display panel provided by at least another embodiment of the present disclosure, and Fig. 6C is a schematic diagram of a touch layer of a display panel provided by at least another embodiment of the present disclosure. As shown in Figs. 6A, 6B, and 6C, a first touch signal line Rx extends along a first direction X, and a second touch signal line Tx extends along a second direction Y. For example, the first touch signal line Rx and the second touch signal line Tx are perpendicular to each other. For example, the first touch signal line Rx includes multiple segments, and the second touch signal line Tx is continuous. At the intersections of the first touch signal line Rx and the second touch signal line Tx, two adjacent segments of the first touch signal line Rx are electrically connected by a first adapter portion RL. The first adapter portion RL and the first touch signal line Rx are provided on different layers (as shown in Fig. 5). The arrangement of the first touch signal line Rx and the second touch signal line Tx can improve the touch sensitivity of the display panel. The first touch signal line Rx and the second touch signal line Tx are made of the same material and formed using the same patterning process. For example, the first touch signal line Rx and the second touch signal line Tx are formed using a metal mesh pattern. The metal mesh has excellent ductility and flexibility, which can improve the bending resistance and workability of the touch electrode, making it suitable for flexible electronic applications. When incorporating a touch electrode formed using the metal mesh into a display panel, the metal lines within the metal mesh should be arranged outside the light-emitting region of the light-emitting element of the sub-pixel P of the display panel (e.g., the aperture K in FIG. 5) to avoid the metal lines blocking light and causing a decrease in the pixel aperture ratio.

[0168] For example, Figure 7A is an enlarged schematic diagram of region D in Figure 6B provided by at least one embodiment of the present disclosure. As shown in Figure 7A, for example, metal lines in the metal mesh are arranged corresponding to pixel spacer regions between light-emitting regions of, for example, subpixel P1, subpixel P2, or subpixel P3, and meshes in the metal mesh are arranged in one-to-one correspondence with, for example, subpixel P1, subpixel P2, or subpixel P3 to expose each light-emitting element. For example, the light-emitting regions of the light-emitting elements of subpixel P1, subpixel P2, or subpixel P3 emit green light, blue light, or red light, respectively.

[0169] In some embodiments of the present disclosure, as shown in FIGS. 6B and 6C , the touch layer 28 further includes a second touch signal line Tx in the display area, and includes electrode blocks (e.g., Tx0, Rx0 shown in 6A ) to which the first touch signal line Rx and the second touch signal line Tx are electrically connected, respectively, and two adjacent electrode blocks of the first touch signal line Rx or the second touch signal line Rx are electrically connected via a first adapter part RL, and the contact area between the first adapter part RL and the two adjacent electrode blocks is S4, where S1≧a*S4, and a is a natural number or a real number greater than 0.8.

[0170] In at least one embodiment of the present disclosure, as shown in FIGS. 6A to 6C , the touch layer 28 further includes a second touch signal line Tx in the display area, and the first touch signal line Rx and the second touch signal line Tx each include a plurality of electrically connected electrode blocks (Tx0, Rx0 shown in FIG. 6A ), and two adjacent electrode blocks of the first touch signal line Rx or the second touch signal line Tx are electrically connected via a first adapter part RL, and the contact area between the adapter part and the two adjacent electrode blocks is S4, where S1 and S4 satisfy 1≦S1 / S4≦18.

[0171] For example, Fig. 7C is a schematic diagram of a first adapter part of a touch layer provided by at least one embodiment of the present disclosure. As shown in Figs. 7A and 7C, the contact area between the first adapter part RL and two adjacent electrode blocks is the contact part between Rx and the first adapter part RL. In the embodiment of the present disclosure, the contact parts are provided at the positions of via holes. There may be 16 of them, or 8, 12, 18, 20, etc. In this embodiment, 16 is used as an example, and S3 is the sum of S3-1, S3-2, .... S3-16.

[0172] 7C shows areas S3-1, S3-2, S3-3, and S3-4 of the four contact positions. Other positions are the same. In the present disclosure, the contact area between the first adaptor part RL and two adjacent electrode blocks can be understood as the area where the first adaptor part RL and the two adjacent electrode blocks are electrically connected through via hole contacts, and the contact area is the area where the first adaptor part RL and the electrode blocks contact each other within the via holes.

[0173] In some embodiments of the present disclosure, for example, the first touch signal line is separated in the peripheral region 202, and the second touch signal line is separated in the peripheral region 202. As shown in Figures 6A and 6B, the touch layer 28 is partitioned around the peripheral region 202 of the light-transmitting region 201, so that the orthogonal projection of the touch layer 28 onto the base substrate 100 and the light-transmitting region 201 do not at least partially overlap.

[0174] 8A is an enlarged schematic diagram of a first side of a light-transmitting region of a display panel provided according to at least another embodiment of the present disclosure. As shown in FIG. 8A, the distance between the edge of the touch layer 28 where the first touch signal line Rx and the second touch signal line Tx are located near the light-transmitting region 201 and the light-transmitting region 201 is X3.

[0175] In some embodiments of the present disclosure, the touch layer 28 further includes a second touch signal line Tx in the display area and a second connection portion Tx2 in the peripheral area, where the second connection portion Tx2 is electrically connected to the second touch signal line Tx, the projections of the second connection portion Tx2 and the m second signal lines GS2 onto the base substrate overlap, the length of the first touch signal line Rx located in the display area is w1, the length of the second touch signal line Tx located in the display area is w2, the area of ​​the first connection portion Rx1 is A2, the area of ​​the second connection portion Tx2 is A6, the vertical distance between at least one of the m second signal lines and the second electrode is H5, and the vertical distance between the first extension portion of at least one of the n first signal lines and the second electrode is H2, where (H5 / H2)>(A2*w1 / A6*w2).

[0176] Note that the "area" of a member in the embodiments of the present disclosure can be understood as the area of ​​the member orthogonally projected onto the base substrate. For example, the area A2 of the first connection portion can be understood as the projected area of ​​the first connection portion Rx1 onto the base substrate, which may also be the area of ​​the top surface of the first connection portion Rx1, and the area of ​​the second connection portion Tx2 is the same, but this will not be repeated here.

[0177] For example, as shown in FIG. 6C , the length w1 of the first touch signal line Rx located in the display area is the length of one touch signal line located in the display area. In a specific implementation, the first touch signal line may be the touch induction line Rx, for example, the touch induction line Rx is a strip-shaped electrode, and w1 is the length of the strip-shaped electrode. For example, the touch induction line Rx is a metal mesh-shaped electrode electrically connected in a first direction, and w1 is the linear length of the metal mesh-shaped electrode electrically connected in the first direction. Similarly, as shown in FIG. 6C , the length w2 of the second touch signal line Tx in the display area is the length of one touch signal line in the display area. In a specific implementation, the second touch signal line may be a touch driving line Tx, and it is understood that the length w2 is the same as w1, and this will not be repeated here.

[0178] In some embodiments of the present disclosure, the first touch signal line may be configured to receive a touch driving signal, and the second touch signal line may be configured to receive a touch sensing signal, that is, it is only necessary to provide touch signals in the horizontal and vertical directions of the display panel according to actual design.

[0179] In some embodiments of the present disclosure, the display panel may include only a first touch signal line, and the first connection part Rx1 is connected to the touch electrode part that is missing from the light-transmitting area, in which case it can be recognized by a self-capacitance touch method.

[0180] In some embodiments of the present disclosure, at least one second signal line GS2 receives a potential in a third voltage range, and the first connection portion receives a potential in a fourth voltage range, and the maximum value of the third voltage range is greater than the maximum value of the fourth voltage range.

[0181] For example, the second signal line GS2 may be a scanning signal line, such as a gate line scanning line or a reset signal scanning line, the third voltage range is −8V to +8V, and the fourth voltage range is 1V to 5V. In specific implementation, the voltage value can be selected according to a specific pixel driving circuit, and is not limited in the present disclosure.

[0182] For example, the touch layer 28 further includes at least one first connection portion and at least one second connection line in the peripheral region 202 of the opening, where the at least one first connection portion extends from the first side of the light-transmitting region along the first direction through the peripheral region 202 of the opening to the second side of the light-transmitting region. FIG. 7B is an enlarged schematic view of region E in FIG. 6B provided by at least one embodiment of the present disclosure. As shown in FIGS. 6B and 7B , the touch layer 28 further includes a first connection portion Rx1 and a second connection line Tx1 located in the peripheral region 202. The first connection portion Rx1 is routed around the opening 201 of the light-transmitting region 20 and extends from the first side SS1 of the light-transmitting region 20 to the second side SS2 of the light-transmitting region 20, electrically connecting the first touch signal line Rx located on the first side SS1 of the peripheral region 202 of the light-transmitting region 20 to the first touch signal line Rx located on the second side SS2 of the peripheral region 202 of the light-transmitting region 20. The second connection line Tx1 is wired around the opening 201 of the light-transmitting region 20, extends from the third side SS3 of the light-transmitting region 20 to the fourth side SS4 of the light-transmitting region, and connects the second touch signal line Tx on the third side SS3 of the peripheral region 202 of the light-transmitting region 20 with the second touch signal line Rx on the fourth side SS4 of the peripheral region 202.

[0183] 7B, the first connection portion Rx1 includes a first bent connection portion Rx11 in the peripheral region 202. The second connection line Tx1 includes a second bent connection portion Tx11 in the peripheral region 202. The first bent connection portion Rx11 passes through the third side SS3 and the fourth side SS4 of the peripheral region of the opening and is wound around the opening 201. The second bent connection portion Tx11 passes through the first side SS1 and the second side SS2 of the peripheral region of the opening and is wound around the opening 201. The orthogonal projection of the first bent connection portion Rx11 of the first connection portion Rx1 onto the base substrate does not overlap with the orthogonal projection of the second bent portion GS22 of the second signal line GS2 onto the base substrate. That is, in the third winding region R3 and the fourth winding region R4, the orthogonal projection of the first bent connection portion Rx11 of the first connection portion Rx1 onto the base substrate is closer to the display region than the orthogonal projection of the second bent portion GS22 of the second signal line GS2 onto the base substrate. Therefore, in order to reduce the influence of the second signal line GS2 on the potential of the first connection portion Rx1, the first connection portions Rx1 do not overlap in the third winding region R3 and the fourth winding region R4 where the second signal line GS2 are densely wired.

[0184] 7B , for example, the peripheral region 202 includes a winding region R5 of the touch signal line. The winding region R5 of the touch signal line is provided around the opening 201. The first bent connection portion Rx11 of the first connection portion Rx1 and the second bent connection portion Tx11 of the second connection line Tx1 are provided in the winding region R5 of the touch signal line. The winding region R5 of the touch signal line partially overlaps with the third winding region R3 and the fourth winding region R4 through which the second bent portion GS22 of the second signal line GS2 passes, and the first winding region R1 and the second winding region R2 through which the first bent portion C1 of the first signal line DS2 passes. The winding region R5 of the touch signal line is closer to the display region than the first winding region R1, the second winding region R2, the third winding region R3, and the fourth winding region R4.

[0185] 7B, the widths of the first connection portion Rx1 and the second connection line Tx1 are wider than the widths of the second signal line GS2 and the first signal line DS2. The widths of the first connection portion Rx1 and the second connection line Tx1 range from approximately 10 μm to 50 μm, e.g., approximately 35 microns, where the term "approximately" means that the value may vary within a range of ±15%, or for example, ±25%. The widths of the second signal line GS2 and the first signal line DS2 range from approximately 2 μm to 5 μm, e.g., approximately 3.5 microns, where the term "approximately" means that the value may vary within a range of ±15%, or for example, ±25%.

[0186] 8B is an enlarged schematic diagram of a fourth side of the light-transmitting area of ​​a display panel provided by at least another embodiment of the present disclosure. As shown in FIGS. 8A and 8B, the density of the first bent connection portions Rx11 of the first connection portions Rx1 in the winding region R5 of the touch signal line and the density of the second bent connection portions Tx11 of the second connection line Tx1 in the touch signal line winding R5 are lower than the density of the second bent portions GS22 of the second signal line GS2 in the third winding region R3 and the fourth winding region R4, and are also lower than the density of the first bent portions C1 of the first signal line DS2 in the first winding region R1 and the second winding region R2. This reduces the influence of dense wiring in the peripheral region of the opening on the first touch signal line Rx and the second touch signal line Tx.

[0187] Note that the "density" of wiring in the embodiments of the present disclosure refers to the number of wirings per unit area, for example, the number of wirings per unit distance in the first direction X or the second direction Y. For example, FIG. 9A is an enlarged schematic diagram of a light-transmitting area of ​​a display panel provided by at least one embodiment of the present disclosure. As shown in FIG. 9A , the distance X2 in the radial direction between the winding region R5 of the touch signal line and the boundary AS of the display area 10 close to the light-transmitting area 20 is smaller than the distance X11 in the first direction X between the first winding region R1 and the boundary AS of the first display area close to the light-transmitting area 20, or the distance X12 in the first direction X between the second winding region R1 and the boundary AS of the second display area close to the light-transmitting area 20, and is smaller than the distance X13 in the second direction Y between the third winding region R3 and the boundary AS of the third display area close to the light-transmitting area 20, or the distance X14 in the second direction Y between the fourth winding region R4 and the boundary AS of the fourth display area close to the light-transmitting area 20. Therefore, the influence of dense wiring in the peripheral region of the opening on the first touch signal line Rx and the second touch signal line Tx is reduced.

[0188] 9A illustrates an example in which the opening 201 and the light-transmitting region 20 are circular. When the opening 201 and the light-transmitting region 20 are rectangular, for example, the distance between the winding region R5 of the touch signal line and the boundary AS of the display region 10 that is close to the light-transmitting region 20 is the distance along the first direction X or the second direction Y.

[0189] For example, Figure 9B is an enlarged schematic view of a light-transmitting region of a display panel provided according to at least another embodiment of the present disclosure. Figure 10A is an enlarged schematic view of a light-transmitting region of a display panel provided according to at least another embodiment of the present disclosure. Figure 10B is an enlarged schematic view of a light-transmitting region of a display panel provided according to at least another embodiment of the present disclosure. Figure 10C is an enlarged schematic view of a light-transmitting region of a display panel provided according to at least another embodiment of the present disclosure. Figure 10D is an enlarged schematic view of a light-transmitting region of a display panel provided according to yet another embodiment of the present disclosure. Figure 10E is an enlarged schematic view of a light-transmitting region of a display panel provided according to yet another embodiment of the present disclosure. Figure 11A is an enlarged schematic view of a light-transmitting region of a display panel provided according to at least another embodiment of the present disclosure. Figure 11B is an enlarged schematic view of a light-transmitting region of a display panel provided according to at least another embodiment of the present disclosure.

[0190] As shown in Figures 9B to 11C, the second connection line Tx1 includes a second sub-connection block Tx01 located on the fourth side SS4 of the opening 201, a second sub-connection block Tx02 located on the third side SS3 of the opening 201, a second sub-connection block Tx03 located on the first side SS1 of the opening 201, and a second sub-connection block Tx04 located on the second side SS2 of the opening 201. The orthogonal projections of the second sub-connection block Tx01, the second sub-connection block Tx02, the second sub-connection block Tx03 and the second sub-connection block Tx04 overlap with the light-transmitting region 20, and some of the overlapping portions are removed, which makes the areas of the second sub-connection block Tx01, the second sub-connection block Tx02, the second sub-connection block Tx03 and the second sub-connection block Tx04 smaller than the other first connection portions Tx. Therefore, resistance compensation must be performed on the second sub-connection block Tx01, the second sub-connection block Tx02, the second sub-connection block Tx03 and the second sub-connection block Tx04. Similarly, the first connection portion Rx1 includes a first sub-connection block Rx01 located between the second sub-connection block Tx01 and the second sub-connection block Tx03, a first sub-connection block Rx02 located between the second sub-connection block Tx01 and the second sub-connection block Tx04, a first sub-connection block Rx03 located between the second sub-connection block Tx02 and the second sub-connection block Tx03, and a first sub-connection block Rx04 located between the second sub-connection block Tx02 and the second sub-connection block Tx04. The orthogonal projections of the first sub-connection block Rx01, the first sub-connection block Rx02, the first sub-connection block Rx03 and the first sub-connection block Rx04 overlap with the light-transmitting region 20, and some of the overlapping portions are removed, which results in the areas of the first sub-connection block Rx01, the first sub-connection block Rx02, the first sub-connection block Rx03 and the first sub-connection block Rx04 being smaller than the other first connection portions Rx1. Therefore, resistance compensation must be performed on the first sub-connection block Rx01, the first sub-connection block Rx02, the first sub-connection block Rx03 and the first sub-connection block Rx04.

[0191] 9B to 11B, the first connection portion Rx1 further includes a first connection portion compensating portion RB1 and a first connection portion compensating portion RB2 of the winding region R5 of the touch signal line. The first connection portion compensating portion RB1 is provided on the upper side (i.e., the fourth side SS4) of the winding region R5 of the touch signal line, the first connection portion compensating portion RB1 is adjacent to the first sub-connection block Rx01 and the first sub-connection block Rx02, and the first connection portion compensating portion RB1 is connected to the first sub-connection block Rx01 and the first sub-connection block Rx02 via the first connection portion Rx1 to provide resistance compensation to the first sub-connection block Rx01 and the first sub-connection block Rx02. The compensation portion RB2 of the first connection portion is provided below the winding region R5 of the touch signal line (i.e., the third side SS3), adjacent to the first sub-connection block Rx03 and the first sub-connection block Rx04, and connected to the first sub-connection block Rx03 and the first sub-connection block Rx04 via the first connection portion Rx1 to provide resistance compensation to the first sub-connection block Rx03 and the first sub-connection block Rx04. The second connecting line Tx1 further includes a second connecting line compensation portion TB1 and a second connecting line compensation portion TB2 of the winding region R5 of the touch signal line. The number of the second connecting line compensation portions TB1 is four, and the number of the second connecting line compensation portions TB2 is two. The compensation portions TB1 of the four second connection lines are arranged in a rectangular shape, and are connected to the second bent connection portions Tx11 of the second connection lines Tx1 connecting the second sub-connection blocks Tx01 and Tx02, respectively, to provide resistance compensation to the second sub-connection blocks Tx01 and Tx02. The compensation portions TB2 of the two second connection lines are adjacent to the second sub-connection blocks Tx03 and Tx04, respectively, and are connected to the second sub-connection blocks Tx03 and Tx04 via the second connection lines Tx1, to provide resistance compensation to the second sub-connection blocks Tx03 and Tx04. The number of the compensation portions RB1 of the first connection portion and the compensation portions RB2 of the first connection portion is less than the number of the compensation portions TB1 of the first connection portion and the compensation portions TB2 of the first connection portion, thereby reducing the influence of dense wiring in the peripheral area of ​​the opening on the potential of the first touch signal electrode Rx.

[0192] 9B to 11B, the compensating portion RB1 and the first connecting portion Rx1 of the first connecting portion may be an integrated structure and disposed on the same film layer. The first sub-connecting block Rx01 and the first sub-connecting block Rx02 are electrically connected via the first connecting portion Rx1. For example, the first sub-connecting block Rx01 and the first sub-connecting block Rx02 may be a block-shaped electrode structure or a block-shaped hollow (metal mesh, etc.) electrode structure that can be electrically connected to the first connecting portion Rx1 via a connecting bridge 901 (as shown in FIG. 9B).

[0193] 9B to 11B, the connecting bridge 901l may be an integrated structure with the first sub-connection block Rx01 and the first sub-connection block Rx02, for example, a block-shaped electrode structure or a block-shaped hollow structure with a portion protruding from it and electrically connected to the first connection portion Rx1. This embodiment is not limited to this, as long as the first sub-connection block Rx01 (first sub-connection block Rx01) and the first sub-connection block Rx02 (first sub-connection block Rx02) are electrically connected to the first connection portion Rx1.

[0194] For example, in other examples, the number of compensation portions TB1 of the second connecting line may also be 2, 8, etc., and the number of compensation portions TB2 of the second connecting line may be 4, etc., and the embodiments of the present disclosure are not limited thereto.

[0195] For example, the compensation portion TB1 and the second connection portion Tx2 of the second connection line may be an integrated structure. As shown in FIG. 10A , the four portions of the second connection portion TS2 (upper left, lower left, upper right, and lower right in the figure) and the compensation portions TB1 of the four corresponding second connection lines may be integrated, that is, the compensation portions TB1 and Tx2 of the corresponding second connection lines can be treated as a single compensation portion. The above design relates to a specific design structure and does not limit the embodiments of the present disclosure.

[0196] For example, as shown in FIG. 9B , the second connection portion Tx2 may have a multi-block structure provided in the same layer as the first connection portion Rx1. As shown in the figure, the second connection portion Tx2 includes four portions: top, bottom, left, and right. Two first connection portions Rx1 are provided on one side of the second connection portion Tx2, closer to the opening 201, and the two first connection portions Rx1 are respectively close to the upper second connection portion Tx2 and the lower second connection portion Tx2. For example, as shown in FIG. 9B , multiple second connection portions Tx2 receiving the same signal can be electrically connected by a conductive layer. For example, the second sub-connection block Tx01 and the second sub-connection block Tx02 electrode blocks on opposite sides of the light-transmitting region 201 are electrically connected via the second connection line Tx1.

[0197] For example, as shown in Figures 9B, 10A and 10E, the second connection line Tx1 may be arranged in a ring shape around the light-transmitting area 201, or may be partitioned to electrically connect the second sub-connection block Tx01 and the second sub-connection block Tx02 electrode blocks located above and below the left and right sides of the light-transmitting area 201, and the length and width of the second connection line Tx1 are designed according to the size of the required capacitor formed by the Tx01 and Tx02 electrode blocks.

[0198] For example, as shown in FIG. 10E, the width of the second connection line Tx1 is wider than the widths of the first signal line DS2 and the second signal line GS2. It can be cut and a dummy block 903 can be placed at a position corresponding to the first connection portion Rx1, thereby aligning the first bent portion C1 of the first signal line DS2 with the dummy block 903 and reducing the mutual influence between the first connection portion Rx1, the second electrode (cathode), and the first signal line DS2. For example, as shown in FIGS. 8B, 9A, and 9B, the orthogonal projection of the compensation portion RB2 of the first connection portion onto the base substrate 100 partially overlaps with the third winding region R3 and the fourth winding region R4 (shown in FIG. 7B) through which the second bent portion GS22 of the second signal line GS2 passes. The orthogonal projections of the compensation portion TB1 of the second connecting line and the compensation portion TB2 of the second connecting line onto the base substrate 100 partially overlap with the first winding region R1 and the second winding region R2 (shown in FIG. 7A) through which the first bend portion C1 of the first signal line DS2 passes.

[0199] For example, the film layer on which the compensation portion of at least one second connecting line is located may be different from the film layer on which the second bent connecting portion is located. As shown in FIGS. 9B and 12A, the second bent connecting portion Tx11 of the second connecting line Tx1 is provided on the second touch pattern layer 281 of 282, which is located on one side of the touch insulating layer 283 away from the base substrate. The compensation portion RB1 of the first connecting portion, the compensation portion RB2 of the first connecting portion, and the second connecting line Rx1 are provided on the first touch pattern layer 282, so that the compensation portion RB1 of the first connecting portion, the compensation portion RB2 of the first connecting portion, and the second connecting line Rx1 can be directly connected without changing layers. The compensation portion TB1 of the second connecting line and the compensation portion TB2 of the second connecting line are provided on the first touch pattern layer 282, which is located on one side of the touch insulating layer 283 close to the base substrate. That is, when the second connecting line Tx1 passes through the compensating portion RB1 of the first connecting portion or the compensating portion RB2 of the first connecting portion, the layer is changed, and the second connecting line Tx1 is not connected to the compensating portion RB1 of the first connecting portion or the compensating portion RB2 of the first connecting portion. The second bent connecting portion Tx11 of the second connecting line Tx1 is electrically connected to the compensating portion TB1 of the second connecting line and the compensating portion TB2 of the second connecting line through a via hole that penetrates the touch insulating layer 283, thereby reducing the connection between the compensating portion TB1 of the second connecting line and the compensating portion TB2 of the second connecting line and the overlap between the first connecting portion Rx1 and the second connecting line Tx1 in the first touch pattern layer 282.

[0200] 9B, the display panel 1 further includes a dummy compensation portion DMB1 in the winding region R5 of the touch signal line, for example, two dummy compensation portions DMB1, each disposed on either side of the winding region R5 of the touch signal line, configured to make the display panel 1 flat.

[0201] For example, the orthogonal projection of the first bent connection portion of at least one first connection portion onto the base substrate overlaps with at least two of the at least one first signal line and at least one second signal line. The orthogonal projection of the first bent connection portion of at least one second connection line onto the base substrate overlaps with at least two of the at least one first signal line and at least one second signal line. As shown in FIG. 12A , the orthogonal projection of the second connection line Tx1 onto the base substrate 100 overlaps with the orthogonal projection of the second bent portion GS22 of the second signal line GS2 and the first bent portion C1 of the first signal line DS2 onto the base substrate 100. The orthogonal projection of the first connection portion Rx1 onto the base substrate 100 overlaps with the orthogonal projection of at least two of the second bent portion GS22 of the second signal line GS2 and the first bent portion C1 of the first signal line DS2 onto the base substrate 100. For example, in the fourth winding region R4, the second signal line GS2 is also arranged between the first insulating layer 212 and the second insulating layer 213 and between the second insulating layer 213 and the third insulating layer 214, and the first signal line DS2 is arranged between the third insulating layer 214 and the fourth insulating layer 232, on one side of the fourth insulating layer 232 that is away from the base substrate. In the fourth winding region R4, the region where the four-layer wiring is arranged overlaps as much as possible with the orthogonal projection of the second connection line Tx1 onto the base substrate 100 in order to reduce the influence of the dense wiring region on the first connection part Rx1.

[0202] For example, as shown in FIG. 12A, in the first winding region R1, the first signal line DS2 is arranged between the third insulating layer 214 and the fourth insulating layer 232, and also on one side of the fourth insulating layer 232 away from the base substrate, and in order to reduce the influence of the dense wiring region on the first connection portion Rx1, the orthogonal projection of the first signal line DS2 onto the base substrate 100 and the orthogonal projection of the second connection line Tx1 onto the base substrate 100 overlap.

[0203] 9A and 12A, the peripheral region of the opening further includes a peripheral region 203 of a first sub-opening (e.g., a thinned region) and a peripheral region 204 of a second sub-opening (e.g., a shielded region). The peripheral region 203 of the first sub-opening is located on one side of the winding region R5 of the touch signal line that is closer to the opening 201, and the peripheral region 204 of the second sub-opening is located on one side of the peripheral region 203 of the first sub-opening that is closer to the opening 201. The peripheral region 203 of the first sub-opening and the winding region R5 of the touch signal line at least partially overlap each other.

[0204] For example, the thickness of at least a portion of the fourth insulating layer in the peripheral region 203 of the first sub-opening along a direction perpendicular to the base substrate is thinner than the thickness of the fourth insulating layer in the display region along a direction perpendicular to the base substrate. As shown in FIG. 12A , the first planarization layer 232 and the second planarization layer 251 are arc-shaped on one surface away from the base substrate in the peripheral region 203 of the first sub-opening, and the thicknesses of the first planarization layer 232 and the second planarization layer 251 gradually decrease toward the opening 201. By reducing the thicknesses of the first planarization layer 232 and the second planarization layer 251, i.e., the second electrode 263 is arc-shaped and extends toward the display panel 100, reducing the influence of wiring on the second electrode 263 of the light-emitting element 26 in the peripheral region 203 of the first sub-opening away from the display region.

[0205] For example, the orthogonal projection of the first connection portion onto the base substrate and the third sub-region of the fourth winding region at least partially overlap, and the orthogonal projection of the second bent connection portion of at least one second connection line onto the base substrate at least partially overlaps with the first sub-region of the first winding region. 10A, 10B, and 10C, the orthogonal projection of the first connection portion compensating portion RB1 or the first connection portion compensating portion RB2 of the first connection portion Rx1 onto the base substrate 100 overlaps with the third sub-region R41. That is, the first connection portion compensating portion RB1 or the first connection portion compensating portion RB2 of the first connection portion Rx1 overlaps with the region with low wiring density as much as possible. The orthogonal projections of the second connection line compensation portion TB1 of the second connection line Tx1 and the compensation portion TB2 of the second connection line onto the base substrate 100 overlap with the first sub-region R11, i.e., the second connection line compensation portion TB1 of the second connection line Tx1 and the compensation portion TB2 of the second connection line overlap with the region with low wiring density as much as possible, thereby reducing the influence of the wiring in the peripheral region 202 on the potential of the first connection portion Rx1 and the second connection line Tx1.

[0206] 11A and 11B, the orthogonal projection of the first connection portion compensating portion RB1 or the first connection portion compensating portion RB2 of the first connection portion Rx1 onto the base substrate 100 does not overlap with the fourth sub-region R42, i.e., the first connection portion compensating portion RB1 or the first connection portion compensating portion RB2 of the first connection portion Rx1 does not overlap with the high wiring density region. The orthogonal projections of the compensation portion TB1 of the second connecting line Tx1 and the compensation portion TB2 of the second connecting line onto the base substrate 100 do not overlap with the second sub-region R12, i.e., the compensation portion TB1 of the second connecting line Tx1 and the compensation portion TB2 of the second connecting line overlap as little as possible with the high wiring density region, thereby reducing the influence of the wiring in the peripheral region 202 on the potential of the first connecting portion Rx1 and the second connecting line Tx1.

[0207] 11A and 11B, the winding region R5 of the touch signal line includes a first dummy compensation portion DMB2. The first dummy compensation portion DMB2 is located on one side of the compensation portion RB1 of the first connecting portion, the dummy compensation portion DMB1, the compensation portion TB1 of the second connecting line, and the compensation portion TB2 of the second connecting line, near the opening 201. The compensation portion RB1 of the first connecting portion, the dummy compensation portion DMB1, the compensation portion TB1 of the second connecting line, and the compensation portion TB2 of the second connecting line can be regarded as forming a ring shape, which is divided into two parts by the ring-shaped opening KM1. The part near the opening 201 is the dummy compensation portion DMB2. Depending on the number of signals to be compensated for on the first touch signal line Rx and the second touch signal line Tx, some of the compensation portion RB1 of the first connecting portion, the compensation portion TB1 of the second connecting line, and the compensation portion TB2 of the second connecting line can be shortened as a dummy compensation portion. The opening KM1 may be used to route the second connecting line Tx1. The orthogonal projection of the first dummy compensation portion DMB2 onto the base substrate overlaps with the second sub-region R12 of the first winding region R1 and the fourth sub-region R42 of the fourth winding region R4. That is, the first dummy compensation portion DMB2 overlaps with the regions of high wiring density in the first winding region R1 and the fourth winding region R4, which can reduce the influence of the wiring in the peripheral region 202 on the potentials of the first connecting portion Rx1 and the second connecting line Tx1.

[0208] For example, as shown in FIG. 12A , the value range of the distance L4 between the winding region R5 (e.g., the central position) of the touch signal line and the peripheral region 204 of the second sub-opening in the first direction X is about 10 μm to 15 μm, for example, the value is about 12.5 μm, where the word “about” means that the value may vary within a range of ±15% or, for example, ±25%.

[0209] 12A, the display panel 1 further includes a fifth insulating layer 29 located in the peripheral region 203 of the first sub-opening and in the region between the peripheral region 203 of the first sub-opening and the opening 201, and a protective layer 284 (e.g., as shown in FIG. 5) on one side of the touch layer 28 away from the base substrate. The fifth insulating layer 29 is located on one side of the encapsulation layer 217 away from the base substrate 100. The third winding region R3 and the fourth winding region R4 (as shown in FIG. 6B) through which the second signal line GS2 passes partially overlap the peripheral region 203 of the first sub-opening. The winding region R5 of the touch signal line partially overlaps the peripheral region 203 of the first sub-opening. A fifth insulating layer 29 is disposed in the peripheral region 203 of the first sub-opening and in the region between the peripheral region 203 of the first sub-opening and the opening 201 to increase the distance between the touch layer 28 and the display panel 100, i.e., the distance between the first connecting portion Rx1 and the second connecting line Tx1 and the distance between the second signal line GS2 and the first signal line DS2 are increased, and the distance between the base substrate 100 and the portions of the first connecting portion Rx1 and the second connecting line Tx1 in the peripheral region 203 of the first sub-opening is greater than the distance between the portions of the first connecting portion Rx1 and the second connecting line Tx1 in the winding region R5 of the touch signal line that do not overlap with the peripheral region 203 of the first sub-opening and the base substrate 100. Therefore, in the peripheral region of the opening, the influence of the dense wiring of the second signal line GS2 and the first signal line DS2 on the potentials of the first connecting portion Rx1 and the second connecting line Tx1 is reduced.

[0210] For example, the material of the fifth insulating layer 29 may include an organic insulating material such as polyimide, polyphthalimide, polyphthalamide, acrylic resin, benzocyclobutene, or phenolic resin, or an inorganic insulating material such as silicon oxide or silicon nitride, and the embodiments of the present disclosure are not limited thereto.

[0211] For example, the material of the protective layer 284 may include insulating materials such as silicon nitride, silicon oxide, silicon oxynitride, polymer resin, etc. Inorganic materials such as silicon nitride, silicon oxide, and silicon oxynitride have high density and can prevent the intrusion of water, oxygen, etc., while polymer resin can flatten the surface of the display panel and relieve stress.

[0212] 9A and 12A, the peripheral region 204 of the second sub-opening further includes a shielding line 242 configured to shield interference signals. The display panel 1 further includes a blocking wall region provided between the peripheral region 204 of the second sub-opening and the opening 201, a detection line PCD, a first barrier wall region 31 provided between the peripheral region 204 of the second sub-opening and the blocking wall region, and a second barrier wall region 32 provided between the blocking wall region and the opening 201. The first barrier wall region 31, the second barrier wall region 32, and the blocking wall region can separate the display region 10 from the opening region 201 to protect the display region 10.

[0213] For example, as shown in FIG. 12A , the first barrier wall region 31 includes a groove 311. The groove 311 includes a groove 312 formed in the sealing layer 217 and covered by a first organic sealing layer 2172. The groove 311 blocks the second electrode 263 to reduce the influence of the surrounding area of ​​the opening on the second electrode 263. For example, the length X4 of each groove 311 along the first direction X is about 11 μm to 13 μm, e.g., about 12 μm, where the word “about” means that the value may vary within a range of ±15%, e.g., ±25%. For example, the distance X5 between the groove 311 (e.g., at its center) along a direction perpendicular to the base substrate 100 and the fifth insulating layer 29 (e.g., on one side surface closer to the base substrate) is greater than 5 μm.

[0214] As shown in FIG. 12A , the second electrode 263 includes a first portion extending to the peripheral region 20 of the opening. For example, another portion of the second electrode 263 is in the display region. FIG. 12B is an enlarged view of region K2 in FIG. 12A . As shown in FIG. 12B , the first portion of the second electrode 263 includes a first sub-portion 2631 and a second sub-portion 2632. The first sub-portion 2631 is on the left side of the figure, and the second sub-portion 2632 is on the right side of the figure. The orthogonal projections of the first sub-portion 2631 and the fourth insulating layer 232 onto the base substrate 100 at least partially overlap, while the orthogonal projections of the second sub-portion 2632 and the fourth insulating layer 232 onto the base substrate 100 do not overlap. That is, the second sub-portion 2632 is a portion that does not overlap with the fourth insulating layer 232. As shown in FIG. 12A , the second sub-portion 2632 extends to the right side to the first barrier wall region 31. The first sub-portion 2631 and the first sub-region R11 of the first winding region R1 and the second sub-region R12 of the first winding region R1 are orthogonally projected onto the base substrate 100 at least partially overlap. The second sub-portion 2632 and the first sub-region R11 of the first winding region R1 and the second sub-region R12 of the first winding region R1 are orthogonally projected onto the base substrate 100 not to overlap.

[0215] 12A , in some embodiments of the present disclosure, each of the pixel driving circuit units P includes a first transistor T1, which is electrically connected to the light-emitting element 26, and the light-emitting element 26 is disposed on one side of the fourth insulating layer 232 away from the base substrate 100. The second electrode 263 includes a first sub-portion 2631 and a second sub-portion 2632 in the peripheral region, where the projections of the first sub-portion 2631 and the fourth insulating layer 232 at least partially overlap, and the projections of the second sub-portion 2632 and the fourth insulating layer 232 do not overlap. The overlapping area of ​​the orthogonal projections of the first sub-portion 2631 and the first extending portions Y1 of the n first signal lines DS2 onto the base substrate 100 is S3, and the overlapping area of ​​the orthogonal projections of the second sub-portion 2632 and the first bending portions C1 of the n first signal lines DS2 onto the base substrate 100 is S4, where S3>S4. For example, S4 may be 0, that is, the second sub-portion 2632 and the fourth insulating layer 232 do not overlap, and do not overlap with the projection of the first bent portion C1 onto the base substrate 100.

[0216] In some embodiments of the present disclosure, as shown in Figures 4E, 12A and 12B, the display panel further includes a second signal line GS2 configured to provide a second signal to a plurality of pixel driving circuit units P, wherein a first extension portion Y1 of one of the n first signal lines includes a plurality of first extension overlap portions YC (e.g., YC-1, YC-2, ... YC-x) that overlap with projections of bend portions GS22 of the plurality of second signal lines, and a first bend portion C1 connected to the first extension portion includes a first bend overlap portion CC that overlaps with projections of at least one of the bend portions GS22 of the plurality of second signal lines, and the distance between at least one of the plurality of first extension overlap portions YC (e.g., at least one of YC-1, YC-2, ... YC-x) of the same first signal line DS2 and the second sub-portion 2632 is greater than the distance between the first bend overlap portion CC and the second sub-portion.

[0217] Note that the overlap of projections in the embodiments of the present disclosure means that the orthogonal projections of two projections onto the base substrate 100 overlap each other.

[0218] 4E, 12A, and 12B, an insulating layer such as an interlayer insulating layer is provided between the first signal line DS2 and the second signal line GS2 in the direction perpendicular to the base substrate 100, and a flat layer is provided between the first signal line DS2 and the second electrode 263 (e.g., a cathode), and the distance between the first extending overlap portion YC and the first bending overlap portion CC and the second sub-portion 2632 is related to the thickness of the flat layer (and further the thickness of the flat layer, the interlayer insulating layer, etc.). In the present disclosure, the distance between the first extending overlap portion YC and the first bending overlap portion CC and the second sub-portion 2632 can be understood as the distance between the first extending overlap portion YC and the first bending overlap portion CC and the same position point, for example, point A, on the second sub-portion 2632.

[0219] In some embodiments of the present disclosure, the first extending portion Y1 of the first signal line is a straight line segment, and the first bending portion C1 is an arc segment.

[0220] In some embodiments of the present disclosure, as shown in Figures 3C, 12A and 12B, the first extension portion Y1 of one of the n first signal lines DS includes a widened portion E1 electrically connected to the display area, and the distance between the widened portion E1 and the second sub-portion 2632 in the same first signal line is greater than the distance between the first extension overlap portion YC or the first bent overlap portion CC and the second sub-portion 2632.

[0221] For example, a flat layer is provided between the first signal line DS2 and the second electrode 163 (e.g., a cathode) in a direction perpendicular to the base substrate 100, and the distances between the widened portion E1, the first extended overlapping portion YC, and the first bent portion C1 and the second sub-portion 2632 relate to the thickness of the insulating layer between each of the second electrodes 163, such as the thickness of the flat layer or the thickness of the flat layer, interlayer insulating layer, etc. In the present disclosure, the distances between the widened portion E1, the first extended overlapping portion YC, and the first bent portion C1 and the second sub-portion 2632 can be understood to be the distances between each of them and the same position point, e.g., point A, on the second sub-portion 2632. In this way, the second sub-portion 2632 and the first bent portion C1 close to it can be positioned as far away from the display area as possible, minimizing the influence on the display as much as possible.

[0222] 5, 12A, and 12B, the display panel includes a pixel definition layer 216, the pixel definition layer 216 is located on one side of the fourth insulating layer 232 away from the base substrate 100, and includes a plurality of pixel openings K, at least a portion of the light-emitting layer 262 of the light-emitting element 26 is disposed in the plurality of pixel openings K, the fourth insulating layer 232 includes a thinned portion 2321 located in the peripheral region and not overlapping with the projection of the first signal line, and the thickness of the thinned portion in a direction perpendicular to the base substrate 100 is smaller than the thickness of the fourth insulating layer in the display region in a direction perpendicular to the base substrate 100. That is, the edge of the fourth insulating layer 232 near the light-transmitting region 201 (which may be, for example, an opening) is thinned.

[0223] 12B, the fourth insulating layer 232 includes a thinned portion 2321 (a portion surrounded by a dotted line in the figure) that does not overlap with the second signal line GS2 on the base substrate 100. One surface of the thinned portion 2321 away from the base substrate 100 is an inclined surface. The thickness of the thinned portion 2321 in a direction perpendicular to the base substrate 100 is thinner than the thickness of the fourth insulating layer 232 in the first sub-region R11 in a direction perpendicular to the base substrate 100. That is, the edge of the fourth insulating layer 232 close to the opening 201 is thinned.

[0224] In some embodiments of the present disclosure, the first connection portion includes a first sub-connection portion, and the orthogonal projection of the first sub-connection portion onto the base substrate does not overlap with the orthogonal projection of the first bent portions of the n first signal lines onto the base substrate, and for the n first signal lines, the distance between the first extension portions of two adjacent first signal lines is greater than the distance between the first bent portions of two adjacent first signal lines, the projection of the first sub-connection portion is within the projection range of the second electrode, and the vertical distance H3 between the first sub-connection portion and the second electrode is greater than the vertical distance H4 between the first body portion of the first signal line and the second electrode.

[0225] For example, the first connection portion Rx1 and the first sub-connection portion may be an integrated structure, in which case the vertical distance H3 between the first sub-connection portion and the second electrode 263 can be understood to be substantially equal to the distance H2 between the first connection portion Rx1 and the second electrode 263.

[0226] For example, the first body portion DS and the first extension portion Y1 of the first signal line may be provided in the same layer, in which case the vertical distance H4 between the first body portion DS of the first signal line and the second electrode 263 is substantially equal to the vertical distance H1 between the first extension portion Y1 and the second electrode 263. Alternatively, for example, if the first body portion DS and the first extension portion Y1 electrically connected thereto are provided in different layers, the vertical distance H4 between the first body portion DS of the first signal line and the second electrode 263 will be greater or smaller than the vertical distance H1 between the first extension portion Y1 and the second electrode 263, and the difference between the two is the thickness of the intermediate insulating layer.

[0227] 4C and 12B, in the direction perpendicular to the base substrate 100, the distance between the plurality of second extending overlapping portions ST1 of the same second signal line GS2 and the second sub-portion 2632 of the second electrode 263 is greater than the distance between the second bent overlapping portion WT1 and the second sub-portion 2632 of the second electrode 263. That is, the second bent overlapping portion WT1 is closer to the opening 201 than the first extending overlapping portion ST1. Because the edge of the fourth insulating layer 232 close to the opening 201 is thinned, the second sub-portion 2632 of the second electrode 263 bends and extends toward one side closer to the base substrate 100 in the thinned region. As a result, the distance between the plurality of second extending overlapping portions ST1 and the second sub-portion 2632 of the second electrode 263 is greater than the distance between the second bent overlapping portion WT1 and the second sub-portion 2632 of the second electrode 263.

[0228] 3D, 4C, and 12B, in the first direction X, the distance between the second widened portion E2 and the second sub-portion 2632 of the second electrode 263 in the same second signal line GS2 is greater than the distance between the second extending overlapping portions ST1 or the second bending overlapping portions WT1 and the second sub-portion 2632 of the second electrode 263. That is, the second widened portion E2 is closer to the display region than the second extending overlapping portions ST1 or the second bending overlapping portions WT1.

[0229] As shown in Figures 3D, 4C and 12B, the distance between two adjacent second widened portions E2 is greater than the distance between two adjacent second bent overlapping portions WT1 or the distance between two adjacent second extended overlapping portions ST1.

[0230] In some embodiments of the present disclosure, at least one first signal line DS1 / DS2 receives a potential in a first voltage range, and the first sub-portion receives a potential in a second voltage range, and the maximum absolute value of the first voltage range is greater than the maximum absolute value of the second voltage range.

[0231] In some embodiments of the present disclosure, the first voltage range is 0 V to +8 V, and the second voltage range is −2 V to −5 V. For example, the first signal line may be a data signal line, the first voltage range is a voltage range of a data cable, and the second voltage range is, for example, a cathode voltage range, and the first sub-unit receives a potential of the cathode voltage.

[0232] In some embodiments of the present disclosure, at least one second signal line GS2 receives a potential in a third voltage range, and the first connection portion receives a potential in a fourth voltage range, and the maximum value of the third voltage range is greater than the maximum value of the fourth voltage range.

[0233] For example, the second signal line GS2 may be a scanning signal line, such as a gate line scanning line or a reset signal scanning line, the third voltage range is −8V to +8V, and the fourth voltage range is 1V to 5V. In specific implementation, the voltage values ​​can be selected according to the specific pixel driving circuit, and are not limited in the present disclosure.

[0234] In some embodiments of the present disclosure, as shown in FIG. 12B, the second electrode 263 includes a third sub-portion 2631′ located in the thinned portion, for example, the angle between the portion 2631′ (third sub-portion 2631′) in the thinned portion of the first sub-portion 2631 and the plane of the base substrate 100 includes a first inclination angle a1, and the angle between the plane of the first connection portion Rx1 and the plane of the base substrate includes a second inclination angle a2, and the first inclination angle a1 is greater than or equal to the second inclination angle a2.

[0235] 12B, the angle between the portion 2631′ (third sub-portion 2631′) in the thinned portion 2321 of the first sub-portion 2631 and the plane of the base substrate 100 increases along the direction toward the base substrate 100. The first inclination angle a1 is the maximum angle between the cut surface of the portion 2631′ (third sub-portion 2631′) in the thinned portion 2321 and the plane of the base substrate 100. In a specific implementation, a2 is 5° or less, and may be, for example, 0°, 1°, 2°, or 3°. In the embodiment of the present disclosure, the first inclination angle a1 may be greater than 5° as long as it is equal to or greater than the second inclination angle a2.

[0236] In some embodiments of the present disclosure, as shown in FIG. 12A , the display panel 1 further includes a barrier structure DAM in the display area and the light-transmitting area, the thickness of the barrier structure DAM is H6, the second electrode 263 further includes a partition portion 2633, the distance between the partition portion 2633 and the barrier structure DAM is L2, and the first tilt angle a1 is less than acrtan(H6 / (L2 / 10)).

[0237] In some embodiments of the present disclosure, a first organic sealing layer 2172 is further provided above the second sub-portion 2632, and the first tilt angle a1 is less than acrtan(H6 / (L2 / 10)), thus further slowing down the flow of the organic layer above the second electrode 263 and improving the sealing performance.

[0238] In some embodiments of the present disclosure, the value of the second tilt angle a2 ranges from 0° to 10°.

[0239] In some embodiments of the present disclosure, the width of the first connection portion Rx1 is greater than 10 μm, and the line width of the at least one first signal line ranges from 1 μm to 5 μm, for example, in some examples, the width of the first connection portion Rx1 ranges from 20 μm to 110 μm.

[0240] For example, the line width DS of the first signal line is 1.5 to 3 μm, and the width of the first connection portion Rx1 is the size in the second direction Y, and in specific implementation, it may be 20 μm, 40 μm, 50 μm, 60 μm, 70 μm, 90 μm, 110 μm, 130 μm, 150 μm, 170 μm, 190 μm, and values ​​therebetween. In practice, the width of the first connection portion Rx1 needs to be designed according to the size of the hole and the width of the frame around the hole, which is not limited in this embodiment.

[0241] In some embodiments of the present disclosure, as shown in FIG. 12B , the display panel further includes a sealing layer 217 positioned between the light-emitting element 26 and the touch layer 28 and a fifth insulating layer 29 positioned in the peripheral region, wherein the sealing layer 217 includes at least a first organic sealing layer, and the fifth insulating layer is provided on one side of the first organic sealing layer 2172 away from the base substrate 100, the touch layer 28 includes a first dummy block RB1-1, and the first dummy block includes a first sub-dummy block RB1' at least partially disposed on the fifth insulating layer, and the distance between the first connection portion Rx1 and the base substrate 100 is smaller than the distance between the first sub-dummy block RB1' and the base substrate 100.

[0242] For example, as shown in FIG. 12B, the thickness of the fifth insulating layer 29 is greater than 2 μm, for example, the thickness range of the fifth insulating layer 29 is 2 μm to 11 μm, for example, (unit: μm) 3, 4, 5, 6, 7, 8, 9, 10, and any intermediate value therebetween, and the distance between the first sub-dummy block RB1′ and the base substrate 100 is greater than the distance between the first connection portion Rx1 and the base substrate 100, for example, greater than 2 μm, thereby mitigating the influence between the first sub-dummy block RB1′, the second electrode, and the signal line therebelow.

[0243] In some embodiments of the present disclosure, as shown in FIG. 12B, the fifth insulating layer 29 includes a first side, a first dummy block RB1-1 is provided on the first side, and the angle between the first dummy block RB1-1 and the plane of the base substrate includes a third inclination angle a3, and a3≧5*a1≧a2.

[0244] In some embodiments of the present disclosure, as shown in FIG. 12B, for example, the angle range of the third tilt angle a3 is 30° to 60°.

[0245] In some embodiments of the present disclosure, as shown in Figures 12A to 12D, the display panel further includes a barrier structure DAM located between the display area and the light-transmitting area, an encapsulation layer 217 provided between the light-emitting element 26 and the touch layer 28 and including at least a first organic encapsulation layer 2172, a fifth insulating layer 29 located in the peripheral area and located on one side of the first organic encapsulation layer 2172 away from the base substrate 100, and a first groove 312-1 located on one side of the barrier structure DAM away from the display area, wherein the thickness of the fifth insulating layer 29 in the groove is H8, and H8≦H2.

[0246] For example, the thickness of the fifth insulating layer 29 in the groove may be 5 μm to 10 μm, for example, 6 μm, 7 μm, 8 μm, or 9 μm, thereby improving the flatness between the transparent area 201 or the peripheral area 202 around the transparent area 201 and the display area 10.

[0247] In some embodiments of the present disclosure, as shown in FIG. 12D , the vertical distance between the first connection portion Rx1 and the second electrode 263 is H2, the display panel further includes a barrier structure positioned between the display area and the light-transmitting area and a second groove 312-2 positioned on one side of the barrier structure DAM away from the display area, the display panel further includes a second dummy block 2634 at least partially disposed in the second groove 312-2, the vertical distance between the second dummy block 2634 and the first dummy block DMB2 is H7, H7 is different from the vertical distance H2 between the first connection portion and the second electrode, the second dummy block 2634 is farther from the display area than the second electrode 263, and the second dummy block 2634 is floating-connected.

[0248] In the embodiment of the present disclosure, the first groove 312-1 and the second groove 312-2 may be the same groove, or may be a plurality of partitioned grooves as shown in FIG. 12D, and are not limited to this in the embodiment of the present disclosure.

[0249] For example, in the second barrier wall region 32, a plurality of grooves having the same structure as the first groove 312-1 may be arranged, for example, 4 to 8 or more grooves, and a protective layer may be placed thereon to cover them, which is advantageous for sealing performance.

[0250] In some embodiments of the present disclosure, the angle between the second dummy block 2634 and the base substrate is less than or equal to the angle between the first dummy block DMB2 and the base substrate 100, as shown in FIG. 12D.

[0251] In some embodiments of the present disclosure, as shown in FIG. 12B, the display panel further includes an encapsulation layer 217 positioned between the light-emitting element and the touch layer 28 (for example, the touch layer 28 includes structures such as the compensation portion TB1 of the second connecting line and the second connecting line Tx1), and a fifth insulating layer 29 positioned in the peripheral region, where the encapsulation layer 217 includes at least a first organic encapsulation layer 2172, and the fifth insulating layer 29 is disposed on one side of the first organic encapsulation layer 2172 away from the base substrate 100, and the touch layer 28 includes a first dummy block RB1-1 and a first dummy block R There is a gap L0 between B1-1 and the first connection portion Rx1, the first extension portion Y1 of one of the n first signal lines includes an widened portion E1 electrically connected to the display area, the minimum straight-line distance between the widened portion E1 and the first extension overlap portion YC of the signal line is L3, the area of ​​the first dummy block RB1-1 is A4, the area of ​​the widened portion E1 is A5, the vertical distance between the first dummy block RB1-1 and the second electrode is h1', and the vertical distance between the widened portion and the second electrode is h2', where h1' / h2'>(A5 / A4)*(L0 / L3).

[0252] For example, the widened portion E1 of the first extension portion Y1 and the first extension portion are an integrated structure, in which case the vertical distance h2' between the widened portion and the second electrode is equal to the vertical distance H1 between the first extension portion Y1 and the second electrode.

[0253] For example, the value of L0 is 9 to 13 μm, and the value of L3 is in the range of 4 to 10 μm; for example, the value of L0 is 10 to 11 μm, 12 to 13 μm, and the value of L3 is in the range of 5 to 6 μm, 7 to 8 μm, 9 to 10 μm, 11 to 12 μm, etc.

[0254] For example, Figure 13 is a schematic diagram of region H in Figure 12A provided by at least one embodiment of the present disclosure, and as shown in Figure 13, the blocking wall region DAM includes a first blocking wall 303 and a second blocking wall 305, the first barrier wall region 31 includes a first barrier wall 302, and the second barrier wall region 32 includes a second barrier wall 304. For example, the number of first barrier walls 302 shown in Figure 10 is two.

[0255] For example, as shown in FIG. 13, the number of first barrier walls 302 in at least one embodiment of the present disclosure may also be one, and the first barrier wall 302 may also be provided in the third groove 312 structure in FIG. 12A, and at the same time, the second barrier wall 304 may also be provided like the third groove 312 structure in FIG. 12A, that is, as a structure in which a groove is opened in the base substrate.

[0256] For example, in the first barrier wall region 31 and / or the second barrier wall region 32, a combination of a third groove 312 structure and a first barrier wall 302 structure may be provided, and the number of third grooves 312 and first barrier walls 302 may be one or more, and is not limited in the embodiments of the present disclosure.

[0257] For example, it is understood that only one of the first blocking wall 303 and the second blocking wall 305 can be retained, or only one blocking wall can be installed in the blocking wall region DAM. As shown in FIG. 12A, as long as the height of the DAM can block overflow of the first organic sealing layer, in specific implementation, the height of the DAM may be 3 μm to 7 μm, for example, 4 μm to 6 μm.

[0258] For example, FIG. 14A is a schematic cross-sectional view of a first barrier wall in a display panel provided by at least one embodiment of the present disclosure, FIG. 14B is a schematic cross-sectional view of a first blocking wall in a display panel provided by at least one embodiment of the present disclosure, FIG. 14C is a schematic cross-sectional view of a second barrier wall in a display panel provided by at least one embodiment of the present disclosure, and FIG. 14D is a schematic cross-sectional view of a second blocking wall in a display panel provided by at least one embodiment of the present disclosure.

[0259] 13 and 14A, the first barrier wall 302 includes a first metal layer structure 302B, and a notch is provided on at least one side of the opening 201 of the first metal layer structure 302B. For example, notches are provided on both the side of the first metal layer structure 302B facing the opening 201 and the side away from the opening 201, i.e., as shown in FIG. 11A. In another example, a notch can be provided on the side of the first metal layer structure 302B. The first barrier wall 302 can separate functional layers formed on the entire surface of the display panel, such as the second electrode 263 of the light-emitting element 26.

[0260] 13 and 14B, the first blocking wall 303 includes a first insulating layer structure, which is, for example, a stack including multiple sub-insulating layers, and FIGS. 10 and 11B show a stack including two sub-insulating layers 3031 and 3032. The first blocking wall 303 can block some functional layers formed in the display area 10 to prevent materials of the functional layers from approaching or penetrating the opening 201.

[0261] As shown in FIGS. 13 and 14C, the second barrier wall 304 includes a second metal layer structure 304B and a first stack structure 304A. The second metal layer structure 304B is disposed on the first stack structure 304A, and a notch is provided on at least one side of the second metal layer structure 304B disposed around the opening 201. For example, notches are provided on both the side of the second metal layer structure 304B facing the opening 201 and the side away from the opening 201, as shown in FIGS. 13 and 14C. In another example, a notch may be provided on one side of the second metal layer structure 304B. For example, the first stack structure 304A includes a stack including a metal layer and an insulating layer. The second barrier wall 304 can also separate functional layers formed over the entire surface of the display panel, achieving a double-blocking effect together with the first barrier wall 302. In this case, if one of the first barrier wall 302 and the second barrier wall 304 fails, the other of the first barrier wall 302 and the second barrier wall 304 can also perform a blocking effect. Furthermore, if the second barrier wall 304 is close to the opening 201 and the opening 201 is formed by a method such as stamping or cutting, the second barrier wall 304 can prevent cracks that may occur when forming the opening 201 from expanding and preventing the cracks from spreading to the display area 10.

[0262] For example, the number of first barrier walls 302, first blocking walls 303, and second barrier walls 304 may be one or more, and in FIG. 13, two first barrier walls 302, one first blocking wall 303, and one second barrier wall 304 are shown as an example, but this does not limit the embodiments of the present disclosure.

[0263] For example, in some examples, the second metal layer structure 304B of the second barrier wall 304 and the first metal layer structure 302B of the first barrier wall 302 have the same structure and include the same material. Therefore, in the manufacturing process of the display panel, the second metal layer structure 304B of the second barrier wall 304 and the first metal layer structure 302B of the first barrier wall 302 may be formed from the same material layer by the same patterning process, simplifying the manufacturing process of the display panel.

[0264] 14C , in some embodiments, the first stacked structure 304A of the second barrier wall 304 includes a first metal sub-layer 3041, a first insulating sub-layer 3042, a second metal sub-layer 3043, and a second insulating sub-layer 3044, which are sequentially disposed on the base substrate 100. For example, the first metal sub-layer 3041 and the gate 223 are disposed on the same layer, the first insulating sub-layer 3042 and the first insulating layer 212 or the second insulating layer 213 are disposed on the same layer, the second metal sub-layer 3043 and the second capacitive electrode 272 are disposed on the same layer, and the second insulating sub-layer 3044 and the third insulating layer 214 are disposed on the same layer. Therefore, these functional layers disposed on the same layer can be formed from the same material layer by the same patterning process, simplifying the manufacturing process of the display panel.

[0265] For example, there are various types of the second barrier wall 304. For example, in some examples, as shown in Figure 11C, the first insulating sub-layer 3042 and the second insulating sub-layer 3044 of the second barrier wall 304 have the same pattern and width as the first metal sub-layer 3041 and the second metal sub-layer 3043, respectively. In this case, in the manufacturing process, the first insulating sub-layer 3042 and the second insulating sub-layer 3044 can be further etched to form corresponding patterns.

[0266] For example, in some embodiments, as shown in FIG. 14A , the first barrier wall 302 further includes a second insulating layer structure 302A on which a first metal layer structure 232B is disposed. For example, the second insulating layer structure 302A may include multiple sub-insulating layers, as shown in FIG. 11A as including sub-insulating layers 3021 and 3022. For example, the sub-insulating layer 3021 and the first insulating layer 212 or the second insulating layer 213 may be disposed in the same layer, and the sub-insulating layer 3022 and the third insulating layer 214 may be disposed in the same layer. In a manufacturing process, these functional layers disposed in the same layer may be formed from the same material layer by the same patterning process. The arrangement of the second insulating layer structure 302A can enhance the barrier effect of the first barrier wall 302 and, for example, facilitate the formation of a first inorganic sealing layer 2173 along the surface of the first barrier wall 302, which is later formed on the first barrier wall 302 by a method such as deposition.

[0267] 14B , the first blocking wall 303 includes multiple sub-insulating layers, such as sub-insulating layer 3031 and sub-insulating layer 3032. For example, the sub-insulating layers 3031 and 3032 are arranged in a one-to-one correspondence with the first planarization layer 232, the second planarization layer 251, and the pixel definition layer 216, and are provided in the same layer. For example, the sub-insulating layer 3031 and the first planarization layer 232 are provided in the same layer, and the sub-insulating layer 3032 and the second planarization layer 251 are provided in the same layer. Therefore, in the manufacturing process, these functional layers arranged in the same layer can be formed from the same material layer by the same patterning process.

[0268] 13, the second blocking wall 305 is higher than the first blocking wall 303. Therefore, the second blocking wall 305, together with the first blocking wall 303, achieves a double blocking effect.

[0269] 14D , the second blocking wall 305 includes multiple sub-insulating layers, and is shown in FIG. 14D as including sub-insulating layer 3051, sub-insulating layer 3052, and sub-insulating layer 3053. For example, the sub-insulating layer 3051 and the first planarization layer 232 are provided in the same layer, the sub-insulating layer 3052 and the second planarization layer 251 are provided in the same layer, and the sub-insulating layer 2053 and the pixel definition layer 216 are provided in the same layer. Therefore, in the manufacturing process, these functional layers arranged in the same layer can be formed from the same material layer by the same patterning process.

[0270] For example, the three sub-metal layers 3023, 3024, and 3025 of the first metal layer structure 302B and the three sub-metal layers 3045, 3046, and 3047 of the second metal layer structure 304B are arranged in a one-to-one correspondence with the three metal layers of the source 224 and the drain 225, respectively, and are made of the same material. Therefore, the first metal layer structure 302B, the second metal layer structure 304B, and the source 224 and the drain 225 can be formed using the same three metal material layers and the same patterning process.

[0271] At least one embodiment of the present disclosure further provides a display panel, the display panel including: a base substrate; a light-transmitting region; a display region at least partially surrounding the light-transmitting region; a peripheral region provided between the display region and the light-transmitting region; a plurality of pixel driving circuit units at least partially located in the display region; and n first signal lines configured to provide first signals to the plurality of pixel driving circuit units, wherein at least one of the first signal lines has a first body portion located in the display region and a first extension portion and a first bend portion located in the peripheral region. a touch layer including: n first signal lines, the first extension portion being electrically connected to the first body portion, at least a part of the first bend portion surrounding the light-transmitting region and being farther from the first body portion than the first extension portion, and a distance between the first extension portions of two adjacent first signal lines being greater than a distance between the first bend portions of two adjacent first signal lines; first touch signal lines located in the display region; and a first connection portion located in the peripheral region and electrically connected to the first touch signal lines; and a touch layer including: n first signal lines, the first extension portion being electrically connected to the first body portion, at least a part of the first bend portion surrounding the light-transmitting region and being farther from the first body portion than the first extension portion; and a light emitting element including m second signal lines configured to provide a light emitting element including: m second signal lines, wherein orthogonal projections of the first connection portions and the m second signal lines onto the base substrate at least partially overlap each other; a first electrode, a light emitting layer, and a second electrode, wherein the first electrode is provided on one side of the n first signal lines away from the base substrate and is electrically connected to at least one pixel driving circuit unit, the second electrode is provided on one side of the first electrode away from the base substrate, and the light emitting layer is provided between the first electrode and the second electrode. a distance between first extension portions of two adjacent first signal lines among the n number of first signal lines is b1; a distance between the first extension portion of at least one of the n number of first signal lines and the second electrode in a direction perpendicular to the base substrate is H1; a distance between two adjacent second signal lines among the m number of second signal lines in a region overlapping with the first connection portion is b2; and a distance between at least one of the m number of second signal lines and the second electrode in a direction perpendicular to the base substrate is H5;b1>b2, H5>H1. In the embodiment of the present disclosure, in a limited space, some of the signal lines are relatively sparse, and the spacing between the signal lines close to the display area is designed to be as large as possible so that the signal line leads to the part of the cathode close to the display area are reduced. By arranging the second signal line with a high wiring density at the corresponding position and away from the second electrode, the influence on the second electrode is reduced and the display effect is improved.

[0272] In at least one embodiment of the present disclosure, as shown in FIGS. 3D and 12A to 12D , the display panel includes a base substrate 100, a light-transmitting region 201, a display region 10 at least a portion of which is disposed around the light-transmitting region 201, a peripheral region 202 disposed between the display region 10 and the light-transmitting region, a plurality of pixel driving circuit units P at least a portion of which is located in the display region, and n first signal lines DS2 configured to provide first signals to the plurality of pixel driving circuit units P. At least one of the first signal lines DS2 includes a first body portion DS located in the display region, a first extension portion Y1 and a first bent portion C1 located in the peripheral region 202, the first extension portion Y1 is electrically connected to the first body portion DS, at least a part of the first bent portion C1 is provided around the light-transmitting region 201 and is farther from the first body portion DS than the first extension portion Y1, and in the n first signal lines DS2, the distance between the first extension portions Y1 of two adjacent first signal lines DS is the distance between the first bend portions C1 of two adjacent first signal lines is greater than the distance between the first bend portions C1 of two adjacent first signal lines, the display panel further includes a second signal line GS2 configured to provide a second signal to the plurality of pixel driving circuit units P, the first connection portion Rx1 and the m second signal lines GS2 are orthogonally projected onto the base substrate 100 at least partially overlap each other, in the n first signal lines DS2, the distance between the first extension portions Y1 of two adjacent first signal lines DS2 is b1, and among the n first signal lines, In a direction perpendicular to the base substrate, the distance between the first extension portion Y1 of at least one of the first signal lines DS2 and the second electrode 263 is H1, the distance between two adjacent second signal lines GS2 of the m second signal lines GS2 in the area overlapping with the first connection portion Rx1 is b2, and the distance between at least one of the m second signal lines and the second electrode 263 in the direction perpendicular to the base substrate is H5, where b1>b2 and H5>H1.

[0273] In at least one embodiment of the present disclosure, the first signal may be a data signal and the second signal may be a scanning signal.

[0274] In at least one embodiment of the present disclosure, the first extending portion of the first signal line is a straight line segment, and the first bent portion is an arc segment.

[0275] For example, in some embodiments of the present disclosure, the first bend C1 may be a dashed line, at least a portion of which is arranged around the light-transmitting region 201, and it can be understood that the extension direction of the first bend C1 is offset from the extension direction of the main body portion DS.

[0276] For example, in some embodiments of the present disclosure, the first extension portion Y1 can be understood to be a straight line segment whose extension direction coincides with the extension direction of the main body portion DS, and the first bend portion C1 can be understood to be an arc segment whose extension direction is offset from the extension direction of the main body portion DS.

[0277] In at least one embodiment of the present disclosure, the width of the first connection portion Rx1 is greater than 10 μm, and the value of the line width of at least one of the first signal lines is in the range of 1 μm to 5 μm, for example, in some examples, the value of the width of the first connection portion Rx1 is in the range of 20 μm to 110 μm.

[0278] For example, in some embodiments of the present disclosure, the shape of the first connection portion Rx1 may be rectangular, in which case the width of the first connection portion Rx1 may be the width of the rectangle, or, for example, the shape of the first connection portion Rx1 may be an arc-shaped block, in which case the width of the first connection portion Rx1 may be the average width along the radial direction of the light-transmitting region 201.

[0279] In at least one embodiment of the present disclosure, the display panel further includes a first insulating layer 212, a second insulating layer 213, a third insulating layer 214, and a fourth insulating layer 232 arranged in a direction away from the base 100, and at least one first extending portion Y1 of the n first signal lines DS is provided between the third insulating layer 214 and the fourth insulating layer 232. For example, as shown in FIGS. 12A and 12B , the first extending portion Y1 and the first bent portion C1 of at least one of the n first signal lines DS have an integrated structure, and the at least one first extending portion Y1 is provided between the third insulating layer 214 and the fourth insulating layer 232.

[0280] In at least one embodiment of the present disclosure, as shown in Figures 3D, 3F, 12C, etc., at least one first extension portion Y1 of the n first signal lines DS is provided on one side of the fourth insulating layer 232 away from the base substrate 100, and the first extension portion Y1 is electrically connected to the corresponding first body portion DS through a via hole.

[0281] In at least one embodiment of the present disclosure, as shown in Figures 3E, 3G, 12A to 12C, etc., at least one of the m second signal lines GS2 is provided on one side of the third insulating layer 214 close to the base substrate 100.

[0282] In at least one embodiment of the present disclosure, as shown in Figures 12A and 12C, in a direction perpendicular to the base substrate, the distance between the first connection portion Rx1 and the second electrode 263 is H2, where H2>H5>H1.

[0283] In at least one embodiment of the present disclosure, for example, the first connection portion Rx1 and the compensation portion TB1 of the second connection line are provided in the same layer, and as shown in FIG. 12A, the distance between the first connection portion Rx1 and the second electrode 263 is substantially equal to the distance between the compensation portion TB1 of the second connection line and the second electrode 263.

[0284] In at least one embodiment of the present disclosure, the pixel driving circuit unit in the pixel display area can be driven by a low-temperature polysilicon semiconductor driving circuit such as a 7T1C circuit, an oxide semiconductor driving circuit such as a 3T1C, or an LTPO (both low-temperature polysilicon and oxide) driving circuit such as 6T1C, 7T1C, 8T1C, 8T2C, 9T1C, or 9T2C, and is not limited in this embodiment.

[0285] For example, when using an LTPO driving circuit, the conductive layer, or transition layer, or layer change structure in the display panel may be provided in the same layer as the source / drain electrodes of the low-temperature polysilicon TFT, or may use the same material; the conductive layer, or transition layer, or layer change structure may be provided in the same layer as the source / drain electrodes of the oxide TFT, or may use the same material; the conductive layer, or transition layer, or layer change structure may be provided in the same layer as the gate of the low-temperature polysilicon TFT or oxide TFT, or may use the same material, and is not limited to the embodiments of the present disclosure.

[0286] For example, when using an LTPO driving circuit, a light-shielding layer can be added to shield the oxide TFT channel, and at the same time, the light-shielding layer can be arranged in a ring shape in the peripheral region 202 to improve the imaging effect.

[0287] In at least one embodiment of the present disclosure, for example, when an LTPO driving circuit is used, the projection of the light-shielding layer onto the base substrate and the projection of the first dummy block RB1-1 in the touch layer onto the base substrate at least partially overlap.

[0288] It should be noted that distance in at least one embodiment of the present disclosure can be understood as the perpendicular distance between two objects in a direction perpendicular to the base substrate.

[0289] In addition, terms such as "almost," "substantially," and "about" in the examples of the present disclosure mean that the relevant values ​​can vary within a range of, for example, ±10%, ±15%, ±20%, or ±25%, taking into account the error range.

[0290] 15 is a schematic diagram of a display device provided by at least one embodiment of the present disclosure. At least one embodiment of the present disclosure provides a display device 2, which may include a display panel 1 according to any one of the above embodiments.

[0291] 15, the display device 2 may further include a flexible circuit board and a control chip. For example, the flexible circuit board may be connected to the connecting area of ​​the display panel 1, and the control chip may be attached to the flexible circuit board and electrically connected to the display area, or the control chip may be directly connected to the connecting area and thereby electrically connected to the display area.

[0292] For example, the control chip may be a central processing unit, a digital signal processor, a system chip (SoC), etc. For example, the control chip may further include a memory, a power supply module, etc., and may realize functions of power supply and signal input / output via separately provided wires, signal lines, etc. For example, the control chip may further include a hardware circuit and computer-executable code, etc. The hardware circuit may include a conventional very large scale integrated (VLSI) circuit or gate array, as well as conventional semiconductors such as logic chips, transistors, or other discrete components, and the hardware circuit may further include a field programmable gate array, programmable array logic, or programmable logic device.

[0293] For example, the display device 2 provided by at least one embodiment of the present disclosure may be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, or a navigator.

[0294] The following points need to be explained: (1) The accompanying drawings in the embodiments of the present disclosure only relate to structures related to the embodiments of the present disclosure, and other structures may refer to conventional designs. (2) Where no contradiction exists, the embodiments and features of the embodiments of the present disclosure may be combined with each other to obtain new embodiments.

[0295] The above are only specific embodiments of the present disclosure, and the scope of protection of the present disclosure is not limited thereto. Any modifications or replacements that can be easily imagined by those skilled in the art within the technical scope disclosed in the present disclosure should be covered by the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be subject to the scope of protection of the claims. [Explanation of symbols]

[0296] 1 Display panel 2 Display device

Claims

1. A display panel including a base substrate, The display panel includes: a light-transmitting region, a display region at least partially surrounding the light-transmitting region, and a peripheral region provided between the display region and the light-transmitting region; a plurality of pixel driving circuit units, at least some of which are located in the display area; n first signal lines configured to provide first signals to the plurality of pixel driving circuit units, at least one of the first signal lines including a first body portion located in the display region, a first extension portion and a first bent portion located in the peripheral region, the first extension portion being electrically connected to the first body portion, at least a portion of the first bent portion surrounding the light-transmitting region and being farther from the first body portion than the first extension portion; a touch layer including: first touch signal lines located in the display area; and first connection portions located in the peripheral area and electrically connected to the first touch signal lines, wherein a distance between first extension portions of two adjacent first signal lines in the n number of first signal lines is greater than a distance between first bend portions of two adjacent first signal lines, an overlapping area of ​​the first connection portion and the first extension portions of the n number of first signal lines in orthogonal projection onto the base substrate is S1, and an overlapping area of ​​the first connection portion and the first bend portions of the n number of first signal lines in orthogonal projection onto the base substrate is S2, where S1≧S2, S1 is greater than zero, and n is an integer greater than 1; a light emitting element including a first electrode, a light emitting layer, and a second electrode, wherein the first electrode is located on one side of the n first signal lines away from the base substrate and is electrically connected to at least one pixel driving circuit unit, the second electrode is located on one side of the first electrode away from the base substrate, and the light emitting layer is located between the first electrode and the second electrode; further comprising Among the n first signal lines, a length of a first extension portion of at least one of the first signal lines is L1, and a distance between the first extension portion of at least one of the first signal lines and the second electrode in a direction perpendicular to the base substrate is H1; The distance satisfies the formula H1≧(S1 / n) / L1, Display panel.

2. The L1, the H1, and the S1 satisfy the formula L1*H1=k*(S1 / n), where k is a real number from 1 to 20. The display panel according to claim 1 .

3. The L1, the H1, and the S1 satisfy the formula L1*H1=k*(S1 / n), where k is a real number from 2 to 10. The display panel according to claim 1 .

4. In a direction perpendicular to the base substrate, a distance between the first connection portion and the second electrode is H2, an area of ​​a first extension portion of one of the n first signal lines is A1, and an area of ​​the first connection portion is A2; However, H2≧(1 / k1)*(A2 / nA1)*H1, and k1 is a real number in the range of 5 to 180. The display panel according to claim 1 .

5. The semiconductor device further includes a first insulating layer, a second insulating layer, a third insulating layer, and a fourth insulating layer provided in a direction away from the base substrate, and a first extending portion of at least one first signal line among the n first signal lines is positioned between the third insulating layer and the fourth insulating layer. The display panel according to claim 1 .

6. a first extension portion of at least one of the n first signal lines is located on one side of the fourth insulating layer away from the base substrate, and the first extension portion is electrically connected to a first body portion corresponding to the first extension portion through a via hole; The display panel according to claim 5 .

7. each of the plurality of pixel driving circuit units includes a first transistor, the first transistor is electrically connected to the light emitting device, and the light emitting device is located on one side of the fourth insulating layer away from the base substrate; the second electrode includes a first sub-portion and a second sub-portion located in a peripheral region, an orthogonal projection of the first sub-portion onto the base substrate and an orthogonal projection of the fourth insulating layer onto the base substrate at least partially overlap, an orthogonal projection of the second sub-portion onto the base substrate and an orthogonal projection of the fourth insulating layer onto the base substrate do not overlap, an overlapping area of ​​the orthogonal projection of the first sub-portion onto the base substrate and first extending portions of the n first signal lines onto the base substrate is S3, and an overlapping area of ​​the orthogonal projection of the second sub-portion onto the base substrate and first bending portions of the n first signal lines onto the base substrate is S4; However, S3>S4. The display panel according to claim 5 .

8. a pixel defining layer disposed on one side of the fourth insulating layer away from the base substrate, the pixel defining layer having a plurality of pixel openings, wherein at least a portion of the light emitting layer of the light emitting device is disposed within the plurality of pixel openings; the fourth insulating layer includes a thinned portion located in the peripheral region and not overlapping with an orthogonal projection of the first signal line onto the base substrate, and a thickness of the thinned portion along a direction perpendicular to the base substrate is smaller than a thickness of the fourth insulating layer in the display region along the direction perpendicular to the base substrate; The display panel according to claim 5 .

9. At least one of the first signal lines receives potentials in a first voltage range, and the first sub-portion receives potentials in a second voltage range, the maximum absolute value of the first voltage range being greater than the maximum absolute value of the second voltage range; The display panel according to claim 7 .

10. the second electrode includes a third sub-portion located in the thinned portion, an angle between a plane of the third sub-portion and a plane of the base substrate comprises a first inclination angle a1, and an angle between a plane of the first connection portion and a plane of the base substrate comprises a second inclination angle a2; the first tilt angle a1 is equal to or greater than the second tilt angle a2; The display panel according to claim 8 .

11. The value range of the second tilt angle a2 is 0° to 10°. The display panel according to claim 10.

12. The width of the first connection portion is greater than 10 μm, The value of the line width of at least one of the first signal lines is in the range of 1 μm to 5 μm. The display panel according to claim 1 .

13. The touch panel further includes a sealing layer disposed between the light emitting element and the touch layer, and a fifth insulating layer disposed in the peripheral region, the encapsulation layer includes at least a first organic encapsulation layer, and the fifth insulating layer is located on one side of the first organic encapsulation layer away from the base substrate; the touch layer includes a first dummy block, and the first dummy block includes a first sub-dummy block at least a portion of which is provided in the fifth insulating layer; a distance between the first connection portion and the base substrate is smaller than a distance between the first sub dummy block and the base substrate; The display panel according to claim 10.

14. the fifth insulating layer includes a first side surface, the first dummy block is provided on the first side surface, and an angle between the first dummy block and a plane on which the base substrate is located includes a third inclination angle a3; a3 ≥ 5 * a1 ≥ a2; The display panel according to claim 13.

15. The value range of the third inclination angle a3 is 30° to 60°. The display panel according to claim 14.

16. a barrier structure positioned between the display area and the light-transmitting area; an encapsulation layer located between the light emitting element and the touch layer, the encapsulation layer including at least a first organic encapsulation layer; a fifth insulating layer located in the peripheral region and located on one side of the first organic encapsulation layer away from the base substrate; a first groove located on one side of the barrier structure away from the display area, the fifth insulating layer has a thickness H8 in the first groove, and H8≦H2; The display panel according to claim 4 .

17. a distance H2 between the first connection portion and the second electrode in a direction perpendicular to the base substrate; The display panel includes: a barrier structure positioned between the display area and the light-transmitting area; a second groove located on one side of the barrier structure away from the display area; a second dummy block at least partially positioned within the second groove; further comprising a distance H7 between the second dummy block and the first dummy block in a direction perpendicular to the base substrate, the distance H7 being different from a distance H2 between the first connection portion and the second electrode; the second dummy block is farther from the display area than the second electrode, and the second dummy block is floating-connected; The display panel according to claim 13.

18. an angle between the second dummy block and the base substrate is equal to or smaller than an angle between the first dummy block and the base substrate; The display panel according to claim 17.

19. The touch layer further includes a second touch signal line located in the display area; the first touch signal line and the second touch signal line each include a plurality of electrically connected electrode blocks, two adjacent electrode blocks in the first touch signal line or the second touch signal line are electrically connected via an adapter part, and a contact area between the adapter part and the two adjacent electrode blocks is S4; S1≧a*S4, where a is a real number greater than 0.

8. The display panel according to claim 1 .

20. A display device comprising the display panel according to any one of claims 1 to 19.

21. A display panel including a base substrate, The display panel includes: a light-transmitting region, a display region at least partially surrounding the light-transmitting region, and a peripheral region between the display region and the light-transmitting region; a plurality of pixel driving circuit units, at least some of which are located in the display area; n first signal lines configured to provide first signals to the plurality of pixel driving circuit units, at least one of the first signal lines including a first body portion located in the display region, and a first extension portion and a first bent portion located in the peripheral region, the first extension portion being electrically connected to the first body portion, at least a portion of the first bent portion surrounding the light-transmitting region and being farther from the first body portion than the first extension portion, and a distance between the first extension portions of two adjacent first signal lines among the n first signal lines being greater than a distance between the first bent portions of two adjacent first signal lines; a touch layer including a first touch signal line located in the display area and a first connection part located in the peripheral area and electrically connected to the first touch signal line; m second signal lines configured to provide second signals to the plurality of pixel driving circuit units, wherein orthogonal projections of the first connection portions and the m second signal lines onto the base substrate at least partially overlap; a light-emitting element including a first electrode, a light-emitting layer, and a second electrode, wherein the first electrode is located on one side of the n first signal lines away from the base substrate and electrically connected to at least one pixel driving circuit unit, the second electrode is located on one side of the first electrode away from the base substrate, and the light-emitting layer is located between the first electrode and the second electrode; further comprising Among the n first signal lines, a distance between first extension portions of two adjacent first signal lines is b1, and among the n first signal lines, a distance between the first extension portion of at least one of the first signal lines and the second electrode in a direction perpendicular to the base substrate is H1, Among the m second signal lines, a distance between two adjacent second signal lines in a region overlapping with the first connection portion is b2, and among the m second signal lines, a distance between at least one of the m second signal lines and the second electrode in a direction perpendicular to the base substrate is H5, b1>b2, H5>H1; Display panel.

22. the first extending portion of the first signal line is a straight line segment, and the first bending portion of the first signal line is an arc segment.

22. The display panel according to claim 21.

23. The width of the first connection portion is greater than 10 μm, and the value of the line width of at least one of the first signal lines is in the range of 1 μm to 5 μm.

22. The display panel according to claim 21.

24. The width of the first connection portion is in the range of 20 μm to 110 μm.

22. The display panel according to claim 21.

25. the first signal line further includes a first insulating layer, a second insulating layer, a third insulating layer, and a fourth insulating layer provided in a direction away from the base substrate, and a first extending portion of at least one first signal line of the n number of first signal lines is positioned between the third insulating layer and the fourth insulating layer; 22. The display panel according to claim 21.

26. A display device comprising the display panel according to any one of claims 21 to 25.

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