Display panel

Abstract

The display panel provided by the present disclosure includes: a plurality of driving signal lines, a plurality of auxiliary signal lines, and a plurality of overlap signal lines. The driving signal lines are arranged in a first sub-display area and a second sub-display area. The auxiliary signal lines are arranged in the first sub-display area and extend from the first sub-display area to a bonding area. The overlap signal lines are arranged in the display area. The overlap signal lines are arranged in a layer different from any one of a layer in which the driving signal lines are arranged, a layer in which the auxiliary signal lines are arranged, and a layer in which the overlap signal lines are arranged. The driving signal lines arranged in the second sub-display area and the auxiliary signal lines arranged in the first sub-display area are respectively connected to the overlap signal lines through first overlap holes. In a thickness direction of the display panel, a projection of the first overlap hole at least partially overlaps a projection of a light shielding structure. In this design, the connection positions of the auxiliary signal lines, the driving signal lines, and the overlap signal lines can be shielded by the original light shielding structure of the display panel, thereby reducing the risk of uneven optical effects.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of display, in particular, to a display panel. BACKGROUND

[0002] With the development of display technology, organic light emitting display (OLED) panel is applied more and more widely due to its excellent performance. On this basis, the demand for full-screen display, the technology of extremely narrow or no frame of OLED panel has become a new direction of technology development.

[0003] In some current technologies, part of the wiring originally arranged in the frame of the OLED panel is rearranged in the display area to achieve the purpose of reducing the width of part of the frame. However, the current OLED panel is limited by its own design. The wiring arranged in the display area will cause problems such as uneven optical effect (which can be referred to as "mura") in visual effect. SUMMARY

[0004] The first aspect of the present disclosure provides a display panel, the display panel comprising a display area and a bonding area located at least one side of the display area, the display area being divided into a first sub-display area and a second sub-display area located at least one side of the first sub-display area, the display panel comprising a substrate, a driving circuit layer arranged on one side of the substrate, and a light shielding structure arranged on the side of the driving circuit layer away from the substrate, wherein the driving circuit layer comprises:

[0005] a plurality of driving signal lines arranged side by side, part of the driving signal lines being located in the second sub-display area, and another part of the driving signal lines extending from the first sub-display area into the bonding area;

[0006] an auxiliary signal line, at least one auxiliary signal line being arranged alternately with the driving signal line located in the first sub-display area and extending from the first sub-display area into the bonding area; and

[0007] a bridging signal line arranged in the display area, the layer where the bridging signal line is located being different from the layer where the driving signal line is located, the layer where the bridging signal line is located being different from the layer where the auxiliary signal line is located, and the driving signal line located in the second sub-display area and the auxiliary signal line located in the first sub-display area being bridged with the bridging signal line through a first bridging hole, respectively.

[0008] Wherein, in the thickness direction of the display panel, the orthographic projection of the first bridging hole at least partially overlaps with the orthographic projection of the light shielding structure.

[0009] In one specific embodiment of the first aspect of the present disclosure, the orthographic projection of the first bridging hole in the thickness direction of the display panel is located within the orthographic projection of the light shielding structure in the thickness direction of the display panel.

[0010] In one specific implementation of the first aspect of the present disclosure, in the first sub-display region, the auxiliary signal line comprises a first sub-auxiliary signal line and a second sub-auxiliary signal line, a first interval region is arranged between the first sub-auxiliary signal line and the second sub-auxiliary signal line, and the extension tracks of the first sub-auxiliary signal line and the second sub-auxiliary signal line coincide,

[0011] The first sub-auxiliary signal line is connected with the bridging signal line through the first bridging hole, and a projection of the first interval region on a thickness direction of the display panel at least partially overlaps with a projection of the light-shielding structure on the thickness direction of the display panel.

[0012] In one specific implementation of the first aspect of the present disclosure, in the same auxiliary signal line, a projection of the first interval region on a thickness direction of the display panel is located within a projection of the light-shielding structure on the thickness direction of the display panel.

[0013] In one specific implementation of the first aspect of the present disclosure, a projection of the first interval region and the first bridging hole on a thickness direction of the display panel is located within a projection of the light-shielding structure on the thickness direction of the display panel.

[0014] In one specific implementation of the first aspect of the present disclosure, the auxiliary signal line is arranged only in the first sub-display region; or, in the display region, the auxiliary signal line is arranged to correspond to and alternate with the driving signal line.

[0015] In one specific implementation of the first aspect of the present disclosure, the bridging signal line comprises a first sub-bridging signal line and a second sub-bridging signal line, the driving signal line located in the second sub-display region is connected with the corresponding auxiliary signal line located in the first sub-display region through the first sub-bridging signal line, a second interval region is arranged between the first sub-bridging signal line and the second sub-bridging signal line, the extension tracks of the first sub-bridging signal line and the second sub-bridging signal line coincide, and a projection of the second interval region on a thickness direction of the display panel at least partially overlaps with a projection of the light-shielding structure on the thickness direction of the display panel.

[0016] In one specific implementation of the first aspect of the present disclosure, in the same bridging signal line, a projection of the second interval region on a thickness direction of the display panel is located within a projection of the light-shielding structure on the thickness direction of the display panel.

[0017] In one specific implementation of the first aspect of the present disclosure, a projection of the second spacing region and the first lap joint hole in a thickness direction of the display panel is located within a projection of the light shielding structure in the thickness direction of the display panel.

[0018] In one specific implementation of the first aspect of the present disclosure, the extension line of the first sub-lap joint signal line intersects with the extension line of the second sub-lap joint signal line, and the second sub-lap joint signal line is perpendicular to the extension trajectory of the driving signal line; or

[0019] The extension trajectory of the lap joint signal line is a straight line, and the extension trajectory of the lap joint signal line is perpendicular to the extension trajectory of the driving signal line.

[0020] In one specific implementation of the first aspect of the present disclosure, further comprising:

[0021] A dummy signal line is arranged in the display area, and the dummy signal line is located on a side of the lap joint signal line away from the bonding area.

[0022] The dummy signal line intersects with the driving signal line.

[0023] In one specific implementation of the first aspect of the present disclosure, the display panel includes a plurality of dummy signal lines and a plurality of lap joint signal lines, and the spacing between adjacent dummy signal lines, the spacing between adjacent lap joint signal lines and dummy signal lines, and the spacing between adjacent lap joint signal lines are equal.

[0024] In one specific implementation of the first aspect of the present disclosure, the display panel further includes a planarization layer disposed on a side of the driving circuit layer away from the substrate, a first electrode layer disposed on a side of the planarization layer away from the driving circuit layer, a second electrode layer disposed on a side of the first electrode layer away from the planarization layer, and a touch electrode layer disposed on a side of the second electrode layer away from the first electrode layer, and the light shielding structure includes at least one of at least part of the first electrode layer, at least part of the touch electrode layer, and at least part of the planarization layer.

[0025] In one specific implementation of the first aspect of the present disclosure, the light shielding structure includes at least one of at least part of the first electrode layer and at least part of the touch electrode layer;

[0026] Preferably, the first electrode layer includes a plurality of first electrodes, the touch electrode layer includes a plurality of touch electrodes, and the light shielding structure includes at least one of at least one first electrode and at least one touch electrode.

[0027] Preferably, at least one of the first electrodes is multiplexed as the light-shielding structure, or at least one of the first electrodes is multiplexed as the light-shielding structure together with at least one of the touch electrodes.

[0028] In one specific implementation of the first aspect of the present disclosure, the display panel further comprises a first electrode, the first electrode is located on a side of the driving circuit layer facing away from the substrate, the light-shielding structure comprises the first electrode,

[0029] At least part of the first overlap hole is located within a projection of the first electrode on a thickness direction of the display panel in a projection on the thickness direction of the display panel.

[0030] Preferably, the display panel further comprises a second electrode, the second electrode is located on a side of the first electrode facing away from the driving circuit layer, the first electrode is an anode, and the second electrode is a cathode.

[0031] Preferably, the first electrode is multiplexed as the light-shielding structure.

[0032] In one specific implementation of the first aspect of the present disclosure, the display panel further comprises a touch electrode, the touch electrode is located on a side of the first electrode facing away from the driving circuit layer, and the light-shielding structure comprises the touch electrode,

[0033] A projection of the touch electrode on a thickness direction of the display panel is located within a projection of a gap between adjacent first electrodes on the thickness direction of the display panel, and at least part of a projection of the first overlap hole on the thickness direction of the display panel at least partially overlaps with a projection of the touch electrode on the thickness direction of the display panel.

[0034] Preferably, at least part of the first overlap hole is located within a projection of the touch electrode on a thickness direction of the display panel in a projection on the thickness direction of the display panel.

[0035] Preferably, the first electrode is multiplexed as the light-shielding structure together with the touch electrode.

[0036] In one specific implementation of the first aspect of the present disclosure, the overlap signal line further comprises a first overlap segment and a second overlap segment, a layer where the first overlap segment is located and a layer where the second overlap segment is located are different, and the first overlap segment and the second overlap segment are connected through a second overlap hole,

[0037] The display panel comprises a plurality of auxiliary signal lines, a target auxiliary signal line and a target driving signal line are respectively connected with the connection signal line through the first connection hole, the second connection hole is located at the intersection of the connection signal line and other auxiliary signal lines and the intersection of the connection signal line and other driving signal lines,

[0038] Preferably, the driving signal line and the auxiliary signal line are in the same layer and are made of the same material.

[0039] Preferably, a third insulating layer is arranged between the first connection section and the second connection section, and the third insulating layer is provided with the second connection hole.

[0040] In one specific embodiment of the first aspect of the present disclosure, the first connection hole is arranged randomly.

[0041] Preferably, the display panel comprises a plurality of auxiliary signal lines and a plurality of connection signal lines, for a part of the first connection hole corresponding to the driving signal line and the auxiliary signal line, the driving signal line closer to the first sub-display area and located in the second sub-display area, the corresponding connected auxiliary signal line is closer to the second sub-display area in the first sub-display area; for another part of the first connection hole corresponding to the driving signal line and the auxiliary signal line, the driving signal line closer to the first sub-display area and located in the second sub-display area, the corresponding connected auxiliary signal line is farther away from the second sub-display area in the first sub-display area.

[0042] The second aspect of the present disclosure provides a display panel, comprising a display area and a bonding area located at least one side of the display area, the display area is divided into a first sub-display area and a second sub-display area located at least one side of the first sub-display area, the display panel comprises a substrate, a driving circuit layer arranged on one side of the substrate, and a light shielding structure arranged on the side of the driving circuit layer away from the substrate, wherein the driving circuit layer comprises:

[0043] A plurality of driving signal lines arranged side by side, part of the driving signal lines are located in the second sub-display area, and another part of the driving signal lines extend from the first sub-display area to the bonding area;

[0044] An auxiliary signal line, at least one auxiliary signal line is arranged alternately with the driving signal line located in the first sub-display area and extends to the bonding area from the first sub-display area, at least one auxiliary signal line located in the first sub-display area comprises a first sub-auxiliary signal line and a second sub-auxiliary signal line, a first interval region is arranged between the first sub-auxiliary signal line and the second sub-auxiliary signal line, and the extension tracks of the first sub-auxiliary signal line and the second sub-auxiliary signal line are coincident.

[0045] a plurality of driving signal lines arranged in the display area, part of the driving signal lines being located in the second sub-display area, and another part of the driving signal lines extending from the first sub-display area into the bonding area;

[0046] In the thickness direction of the display panel, the orthographic projection of the first interval region at least partially overlaps the orthographic projection of the light shielding structure.

[0047] A third aspect of the present disclosure provides a display panel, comprising a display area and a bonding area located at least one side of the display area, the display area being divided into a first sub-display area and a second sub-display area located at least one side of the first sub-display area, the display panel comprising a substrate, a driving circuit layer arranged on one side of the substrate, and a light shielding structure arranged on the side of the driving circuit layer away from the substrate, wherein the driving circuit layer comprises:

[0048] a plurality of driving signal lines arranged in parallel, part of the driving signal lines being located in the second sub-display area, and another part of the driving signal lines extending from the first sub-display area into the bonding area;

[0049] a plurality of auxiliary signal lines, at least one of the auxiliary signal lines being arranged alternately with the driving signal lines located in the first sub-display area and extending from the first sub-display area into the bonding area; and

[0050] a plurality of overlap signal lines arranged in the display area, the layer where the overlap signal lines are arranged being different from the layer where the driving signal lines are arranged, and the layer where the overlap signal lines are arranged being different from the layer where the auxiliary signal lines are arranged, the driving signal lines located in the second sub-display area being connected to the corresponding auxiliary signal lines located in the first sub-display area through the first sub-overlap signal lines, the first sub-overlap signal lines and the second sub-overlap signal lines being provided with a second interval region, and the extension tracks of the first sub-overlap signal lines and the second sub-overlap signal lines being coincident;

[0051] In the thickness direction of the display panel, the orthographic projection of the second interval region at least partially overlaps the orthographic projection of the light shielding structure. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1 A planar structure schematic diagram of a display panel provided by an embodiment of the present disclosure is shown.

[0053] Figure 2 ForFigure 1 An enlarged view of the S region of the display panel shown.

[0054] Figure 3 An enlarged view of the S region of the display panel shown. Figure 2 A cross-sectional view of the display panel shown along M-N.

[0055] Figure 4 An enlarged view of the S region of the display panel shown. Figure 2 A cross-sectional view of the display panel shown.

[0056] Figure 5 A planar structure schematic view of another display panel provided by an embodiment of the present disclosure.

[0057] Figure 6 An enlarged view of the S region of the display panel shown. Figure 5 An enlarged view of the S region of the display panel shown.

[0058] Figure 7 A planar structure schematic view of another display panel provided by an embodiment of the present disclosure.

[0059] Figure 8 An enlarged view of the S region of the display panel shown. Figure 7 An enlarged view of the S region of the display panel shown.

[0060] Figure 9 A planar structure schematic view of another display panel provided by an embodiment of the present disclosure.

[0061] Figure 10 An enlarged view of the S region of the display panel shown. Figure 9 An enlarged view of the S region of the display panel shown.

[0062] Figure 11 An enlarged view of a partial region of another display panel provided by an embodiment of the present disclosure.

[0063] Figure 12 A cross-sectional view of the display panel shown. Figure 11 A cross-sectional view of the display panel shown.

[0064] Figure 13 An enlarged view of a partial region of another display panel provided by an embodiment of the present disclosure.

[0065] Figure 14 An enlarged view of a partial region of another display panel provided by an embodiment of the present disclosure.

[0066] Figure 15 A cross-sectional view of the display panel shown along M-N. Figure 14 A cross-sectional view of the display panel shown along M-N.

[0067] Figure 16 A planar structure schematic view of another display panel provided by an embodiment of the present disclosure.

[0068] Figure 17 FIG. 2 is a schematic diagram of a planar structure of another display panel according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0069] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present disclosure.

[0070] In a design of a display panel with an extremely narrow frame, the lead wires of some signal lines arranged in the regions on both sides of the display area are transferred to the middle region of the display area, and then the signal lines are led out. This technology can be referred to as fanout in AA (FIAA for short). However, this technology will connect the signal lines through a large number of overlapping holes and signal line breaks, and in the transfer region where the overlapping holes and the signal line breaks (breaks) are located, a certain optical effect will be presented and will be visually visible under certain conditions (such as large viewing angle, bright-dark conversion, etc.), thereby causing the optical effect mura of the display panel. It should be noted that the optical effect mura is not limited to the optical effect mura of the display panel caused by the display light emitted by the display panel, but can also include the optical effect mura of the display panel caused by the reflection of the external ambient light.

[0071] In view of this, the present disclosure provides a display panel to solve the aforementioned technical problems. The display panel includes a display area and a bonding area located on at least one side of the display area. The display area is divided into a first sub-display area and second sub-display areas located on both sides of the first sub-display area. The display panel includes a driving circuit layer and a plurality of light-shielding structures arranged in an array within the display area. The driving circuit layer and the light-shielding structures are arranged along the thickness direction of the display panel. The driving circuit layer includes a plurality of driving signal lines arranged in parallel, a plurality of auxiliary signal lines arranged in parallel, and a plurality of overlapping signal lines arranged in parallel. A portion of the driving signal lines are located in the second sub-display area, and another portion of the driving signal lines extend from the first sub-display area into the bonding area. The plurality of auxiliary signal lines are alternately arranged with the plurality of driving signal lines located in the first sub-display area, and the plurality of auxiliary signal lines extend from the first sub-display area into the bonding area. Multiple overlapping signal lines are arranged side by side in the display area. The layer where the overlapping signal lines are located is different from the layer where the driving signal lines are located or the layer where the auxiliary signal lines are located. The driving signal lines located in the second sub-display area and the auxiliary signal lines located in the first sub-display area are respectively overlapped with the overlapping signal lines through the first overlapping hole. In the thickness direction of the display panel, the orthographic projection of the first overlapping hole and the orthographic projection of the light-shielding structure at least partially overlap. In one embodiment, the orthographic projection of the first overlapping hole in the thickness direction of the display panel is located within the orthographic projection of the light-shielding structure in the thickness direction of the display panel. The statement "the orthographic projection of A is located within the orthographic projection of B" in this disclosure includes two cases: (1) the orthographic projection of A and the orthographic projection of B are the same size and exactly overlap, (2) the size of the orthographic projection of B is larger than the size of the orthographic projection of A and the orthographic projection of B covers the orthographic projection of A. In this design, the position and size of the light-shielding structure can be adjusted to block the overlap position (first overlap hole) of the overlapping signal line, auxiliary signal line, and drive signal line. Alternatively, the overlap position (first overlap hole) of the overlapping signal line, auxiliary signal line, and drive signal line can be adjusted so that the overlap position (first overlap hole) can be blocked by the original light-shielding structure of the display panel. This prevents the light emitted from the display panel for display and / or the ambient light from the outside from exhibiting certain optical effects at the overlap position (first overlap hole) and being visually visible under specific conditions (such as wide viewing angle, brightness transition, etc.), thereby avoiding uneven optical effects (mura) of the display panel.

[0072] The auxiliary signal lines include a first sub-auxiliary signal line and a second sub-auxiliary signal line, the first sub-auxiliary signal line and the second sub-auxiliary signal line are arranged along the extension direction of the driving signal lines, the extension track of the first sub-auxiliary signal line coincides with the extension track of the second sub-auxiliary signal line, and the first sub-auxiliary signal line and the second sub-auxiliary signal line are broken, that is, a first interval region is arranged between the first sub-auxiliary signal line and the second sub-auxiliary signal line. The first sub-auxiliary signal line is closer to the bonding region than the second sub-auxiliary signal line. One end of the bridging signal line is bridged with the driving signal line in the second sub-display region through the first bridging hole, and the other end of the bridging signal line is bridged with the first sub-auxiliary signal line in the first sub-display region through the first bridging hole. The orthographic projection of the first interval region between the first sub-auxiliary signal line and the second sub-auxiliary signal line at least partially overlaps with the orthographic projection of the light shielding structure. In this design, the position and size of the light shielding structure can be adjusted so that the light shielding structure can shield the first interval region between the first sub-auxiliary signal line and the second sub-auxiliary signal line, or the position and size of the first interval region between the first sub-auxiliary signal line and the second sub-auxiliary signal line can be adjusted so that the first interval region can be shielded by the original light shielding structure of the display panel, thereby avoiding the display light emitted by the display panel and / or the external ambient light from presenting certain optical effects at the first interval region and being visually visible under certain conditions (such as large viewing angle, bright-dark conversion, etc.), thereby avoiding the optical mura of the display panel.

[0073] The bridging signal lines include a first sub-bridging signal line and a second sub-bridging signal line, the extension track of the first sub-bridging signal line coincides with the extension track of the second sub-bridging signal line, and the first sub-auxiliary signal line and the second sub-auxiliary signal line are broken, that is, a second interval region is arranged between the first sub-auxiliary signal line and the second sub-auxiliary signal line. One end of the first sub-bridging signal line is bridged with the driving signal line in the second sub-display region through the first bridging hole, and the other end of the first sub-bridging signal line is bridged with the first sub-auxiliary signal line in the first sub-display region through the first bridging hole. The orthographic projection of the second interval region between the first sub-bridging signal line and the second sub-bridging signal line at least partially overlaps with the orthographic projection of the light shielding structure. In this design, the position and size of the light shielding structure can be adjusted so that the light shielding structure can shield the second interval region between the first sub-bridging signal line and the second sub-bridging signal line, or the position and size of the second interval region between the first sub-bridging signal line and the second sub-bridging signal line can be adjusted so that the second interval region can be shielded by the original light shielding structure of the display panel, thereby avoiding the display light emitted by the display panel and / or the external ambient light from presenting certain optical effects at the second interval region and being visually visible under certain conditions (such as large viewing angle, bright-dark conversion, etc.), thereby avoiding the optical mura of the display panel.

[0074] The light shielding structure comprises at least one of the first electrode and the touch electrode. That is, in one of the embodiments, at least one first electrode can be multiplexed as the light shielding structure, and optionally, a plurality of first electrodes are multiplexed as the light shielding structure; in one of the embodiments, at least one touch electrode is multiplexed as the light shielding structure, and optionally, a plurality of touch electrodes are multiplexed as the light shielding structure; in one of the embodiments, at least one first electrode and at least one touch electrode are multiplexed as the light shielding structure, and optionally, a plurality of first electrodes and a plurality of touch electrodes are multiplexed as the light shielding structure. Specifically, the first electrode is an anode.

[0075] In one of the embodiments, the display panel further comprises a planarization layer disposed on the side of the driving circuit layer away from the substrate, and the first electrode layer is disposed on the side of the planarization layer away from the driving circuit layer. The material of the planarization layer can comprise a black matrix, and of course, in other embodiments, the material of the planarization layer can also be other light shielding materials, which are not limited in the present disclosure. The light shielding structure can further comprise at least part of the planarization layer, that is, at least part of the planarization layer can also be multiplexed as the light shielding structure.

[0076] The light shielding structure comprises at least one of the first electrode, the touch electrode and at least part of the planarization layer. That is, in one of the embodiments, at least one first electrode and at least part of the planarization layer can be multiplexed as the light shielding structure, and optionally, a plurality of first electrodes and at least part of the planarization layer are multiplexed as the light shielding structure; in one of the embodiments, at least one touch electrode and at least part of the planarization layer are multiplexed as the light shielding structure, and optionally, a plurality of touch electrodes and at least part of the planarization layer are multiplexed as the light shielding structure; in one of the embodiments, at least one first electrode, at least one touch electrode and at least part of the planarization layer are multiplexed as the light shielding structure, and optionally, a plurality of first electrodes, a plurality of touch electrodes and at least part of the planarization layer are multiplexed as the light shielding structure. Specifically, the first electrode is an anode.

[0077] Next, the structure of the display panel in at least one embodiment of the present disclosure will be described in conjunction with the accompanying drawings. In addition, in the drawings, a spatial rectangular coordinate system is established based on the face on which the display panel is located (for example, the display face thereof, or the face on which the substrate included therein is located) as a reference to more intuitively present the positional relationship of various structures in the display panel. In the spatial rectangular coordinate system, the X-axis and the Y-axis are parallel to the face on which the display panel is located, and the X-axis is perpendicular to the extension direction of the driving signal line in the display area, and the Z-axis is perpendicular to the face on which the display panel is located.

[0078] As shown in FIG. 1, the display panel 100 comprises a substrate 110, a driving circuit layer 120, a first electrode layer 130, a planarization layer 140, a light shielding structure 150, a touch electrode layer 160 and a display layer 170. Figures 1 to 3As shown, the display panel includes a display area 10, a frame area 20 surrounding the display area 10, and a bonding area 30 located on a side of the frame area 20 away from the display area 10. The display area 10 is divided into a first sub-display area 11 and two second sub-display areas 12, with the first sub-display area 11 located between the two second sub-display areas 12. The display panel includes a substrate 1, a drive circuit layer disposed on one side of the substrate 1, a first electrode layer disposed on a side of the drive circuit layer away from the substrate 1, a second electrode layer disposed on a side of the first electrode layer away from the drive circuit layer, and a touch electrode layer disposed on a side of the second electrode layer away from the first electrode layer. The first electrode layer includes a plurality of first electrodes. The first electrode layer is an anode layer, and the first electrodes 41 are anodes. The second electrode layer includes a plurality of second electrodes. The second electrode layer is a cathode layer, and the second electrodes are cathodes. The touch electrode layer includes a plurality of touch electrodes. The drive circuit layer and the light shielding structure 40 are arranged along the thickness direction of the display panel, i.e., the light shielding structure 40 is located on a side of the drive circuit layer away from the substrate 1. The drive circuit layer includes a plurality of drive signal lines 100, a plurality of auxiliary signal lines 200, and a plurality of bridging signal lines 300 arranged side by side. The light shielding structure 40 includes at least one of the first electrodes 41 and the touch electrodes 42. That is, in one embodiment, at least one first electrode 41 can be multiplexed as the light shielding structure 40, and optionally, a plurality of first electrodes 41 are multiplexed as the light shielding structure 40; in one embodiment, at least one touch electrode 42 is multiplexed as the light shielding structure 40, and optionally, a plurality of touch electrodes 42 are multiplexed as the light shielding structure 40; in one embodiment, at least one first electrode 41 and at least one touch electrode 42 are multiplexed as the light shielding structure 40, and optionally, a plurality of first electrodes 41 and a plurality of touch electrodes 42 are multiplexed as the light shielding structure 40. The bonding area 10 is arranged opposite the first sub-display area 11, and the drive signal lines 100 are distributed in both the first sub-display area 11 and the second sub-display areas 12. The drive signal lines 100 corresponding to the second sub-display areas 12 are located only in the second sub-display areas 12, and the drive signal lines 100 corresponding to the first sub-display area 11 extend from the first sub-display area 11 to the bonding area 30. The auxiliary signal lines 200 are distributed in the first sub-display area 11 and extend from the first sub-display area 11 to the bonding area 30 through the frame area 20. The drive signal lines 100 in the second sub-display areas 12 are connected to the auxiliary signal lines 200 in the first sub-display area 11 through the bridging signal lines 300. Since a large number of drive signal lines 100 are arranged in the two second sub-display areas 12, and at least as many auxiliary signal lines 200 as the number of drive signal lines 100 in the two second sub-display areas 12 must be arranged in the first sub-display area 11, the drive signal lines 100 and the auxiliary signal lines 200 can be arranged alternately in the first sub-display area 11.

[0079] It should be noted that the terminal (for example, the pad) is arranged in the bonding area 30, and the driving signal line 100 is led out to the bonding area in an indirect or direct manner to be connected with the terminal. Specifically, the driving signal line 100 located in the first sub-display area 11 is directly led out to the bonding area 30 to be connected with the external control circuit (for example, the driving chip or the chip bonded on the flexible circuit board) through the terminal of the bonding area 30, so as to control the display unit of the display area 10. The driving signal line 100 located in the second sub-display area 12 is led out to the bonding area 30 through the bridging signal line 300 and the auxiliary signal line 200, that is, the driving signal line 100 located in the second sub-display area 12 is connected to the auxiliary signal line 200 through the bridging signal line 300, and then is led out to the bonding area 30 through the auxiliary signal line 200 to be connected with the external control circuit (for example, the driving chip or the chip bonded on the flexible circuit board) through the terminal of the bonding area 30, so as to control the display unit of the display area 10.

[0080] Specifically, as shown in Figure 2 and Figure 3 , the driving signal line 100 and the auxiliary signal line 200 are arranged in the same layer, that is, the driving signal line 100 and the auxiliary signal line 200 are arranged in the same layer and are made of the same material. The first insulating layer 51 is arranged between the layer where the driving signal line 100 and the auxiliary signal line 200 are arranged and the layer where the bridging signal line 300 is arranged, and the first bridging hole 301 is arranged in the first insulating layer 51, and the bridging signal line 300 is connected with the corresponding driving signal line 100 and auxiliary signal line 200 through the first bridging hole 301. For example, Figure 2 four adjacent driving signal lines 100 (numbered from A1 to A4) are shown, the driving signal lines 100 numbered from A1 to A3 are located in the second sub-display area 12, and the driving signal line 100 numbered A4 is located in the first sub-display area 11. The auxiliary signal line 200 is arranged on one side of the driving signal line 100 numbered A4, and the bridging signal line 300 connects the auxiliary signal line 200 adjacent to the driving signal line 100 numbered A4 with the driving signal line 100 numbered A1 through the first bridging hole 301, that is, the bridging signal line 300 connected with the driving signal line 100 numbered A1 spans two driving signal lines 100 numbered A2 and A3. The second insulating layer 52 is further arranged on the side of the driving circuit layer away from the substrate 1, and the light shielding structure 40 can be located on the side of the second insulating layer 52 away from the driving circuit layer. By adjusting the length and other parameters of the auxiliary signal line 200 and the bridging signal line 300, the position of the first bridging hole 301 can be adjusted, so that the first bridging hole 301 is located below the light shielding structure 40, so that the light shielding structure 40 can shield at least part of the first bridging hole 301, that is, in the thickness direction of the display panel, the orthographic projection of the first bridging hole 301 at least partially overlaps with the orthographic projection of the light shielding structure 40.

[0081] It should be noted that the driving signal line and the auxiliary signal line are not limited to being located in the same layer as shown, but can also be arranged in different layers, and the specific design can be designed according to the actual process needs, which is not limited here. Figure 3

[0082] In the embodiments of the present disclosure, the specific design of the driving circuit layer is not limited, and it can be designed according to the actual process needs such as the pixel arrangement of the display panel, the light-emitting type, etc. For example, as shown in Figure 4 The display panel can include a substrate 1 and a driving circuit layer and a display function layer located on the substrate 1. The display function layer includes an array of light-emitting devices 50, which includes a first electrode (anode) 41, a light-emitting function layer (including a light-emitting layer), and a second electrode (cathode) stacked on the driving circuit layer. The driving circuit layer can include a pixel driving circuit connected to the corresponding light-emitting device 50 to control the light-emitting state of the light-emitting device 50. The pixel driving circuit can include a plurality of transistors TFT, a capacitor, etc., for example, in the form of 2T1C (i.e. 2 transistors (TFT) and 1 capacitor (C)), 3T1C or 7T1C, etc.

[0083] It should be noted that in some embodiments of the present disclosure, in the same pixel driving circuit, the transistors TFT can be made in different layers, and the capacitor can also be designed in this way, so that the conductive structures in the transistors TFT and the capacitor and the related signal lines can provide arrangement space, in which case, the driving signal line, the auxiliary signal line, and the overlap signal line can be designed in the same layer as part of the conductive structures in the transistors TFT and the capacitor. In this way, the increase of the overlap signal line (for example, also including the double-layer design mentioned in the embodiment shown below) Figure 15 does not increase the preparation process flow (for example, the number of mask processes) of the display panel, thereby facilitating the control of the preparation process cost of the display panel.

[0084] In at least one embodiment of the present disclosure, the auxiliary signal line shown in Figure 2 can be extended and modified to alleviate the phenomenon of uneven optical effect (for example, light reflection) caused by the setting of the auxiliary circuit, thereby making the auxiliary signal line not only as a switching circuit of the driving signal line.

[0085] For example, as shown in Figure 5 and Figure 6 ​As shown, in the first sub-display area 11, the auxiliary signal line 200 includes a first sub-auxiliary signal line 210 and a second sub-auxiliary signal line 220, the first sub-auxiliary signal line 210 and the second sub-auxiliary signal line 220 are disconnected, the first sub-auxiliary signal line 210 is connected with the bridging signal line 300 through the first bridging hole 301, and the extension tracks of the first sub-auxiliary signal line 210 and the second sub-auxiliary signal line 220 coincide, that is, the auxiliary signal line 200 is a signal line which is parallel to the driving signal line 100 located in the first sub-display area 11 and has a substantially consistent length. For example, in the first sub-display area 11, the length of the auxiliary signal line 200 is further designed to be substantially equal to the length of the adjacent driving signal line 100. In this way, the auxiliary signal line 200 is configured by the first sub-auxiliary signal line 210 and the second sub-auxiliary signal line 220, the first sub-auxiliary signal line 210 is used to relay the signal of the driving signal line 100, and the second sub-auxiliary signal line 220 is only used to lengthen the length of the auxiliary signal line 200, so that the length of the auxiliary signal line 200 and the adjacent parallel driving signal line 100 remains consistent, and the optical visual effect caused by the length difference of the signal line will not occur in the visual effect, thereby maintaining the uniformity of the optical effect of the display panel, and further relieving the problem of uneven optical effect caused by the setting of the auxiliary signal line 200 (for example, the case of the first sub-auxiliary signal line 210 with uneven length).

[0086] For example, in the first sub-display area 11, the first sub-auxiliary signal line 210 and the second sub-auxiliary signal line 220 are disconnected, that is, the first sub-auxiliary signal line 210 and the second sub-auxiliary signal line 220 are provided with a first interval area, so that the first sub-auxiliary signal line 210 is prevented from being transmitted to the second sub-auxiliary signal line 220, thereby preventing the signal interference between the second sub-auxiliary signal line 220 and the adjacent driving signal line 100, and the signal interference between the adjacent parallel auxiliary signal line and the driving signal line can be relieved.

[0087] For example, in the same auxiliary signal line 200, the first interval area of the first sub-auxiliary signal line and the second sub-auxiliary signal line is located within the orthogonal projection of the light shielding structure 40 in the thickness direction of the display panel. In this way, the optical difference caused by the first interval area can be avoided, thereby ensuring the uniformity of the optical effect (for example, light reflection) of the first sub-display area.

[0088] In the embodiments of the present disclosure, the auxiliary signal line can be provided only in the first sub-display area as shown in Figure 5 and Figure 6 ; or, as shown in Figure 7As shown, the auxiliary signal lines are distributed in the whole display area, i.e., in the display area, the auxiliary signal lines are arranged in one-to-one correspondence with and alternately with the driving signal lines. In the latter case, the auxiliary signal lines are relatively uniformly arranged in the whole display area, so that the problem of uneven optical effect (e.g., optical difference between the first sub-display area and the second sub-display area) caused by the arrangement of the auxiliary signal lines can be further alleviated.

[0089] For example, as shown in FIG. 2A and FIG. 2B, in the display area 10, the auxiliary signal lines 200 are arranged in one-to-one correspondence with and alternately with the driving signal lines 100, and in the second sub-display area 12, the auxiliary signal lines 200 can be further designed to have a length substantially equal to that of the adjacent driving signal lines 100. Specifically, for example, as shown in FIG. 2A and FIG. 2B, four driving signal lines 100 (numbered from A1 to A4) and four auxiliary signal lines 200 (numbered from B1 to B4) are shown, the driving signal lines 100 numbered from A1 to A3 and the auxiliary signal lines 200 numbered from B1 to B3 are located in the second sub-display area 12, the driving signal line 100 numbered A4 and the auxiliary signal line 200 numbered B4 are located in the first sub-display area 11, the driving signal lines 100 and the auxiliary signal lines 200 are arranged alternately, and the connecting signal line 300 connects the auxiliary signal line 200 numbered B4 adjacent to the driving signal line 100 numbered A4 with the driving signal line 100 numbered A1 through the first connecting hole 301, i.e., the connecting signal line 300 connected with the driving signal line 100 numbered A1 spans two driving signal lines 100 numbered A2 and A3 and two auxiliary signal lines 200 numbered B2 and B3. Figure 7 Figure 8 For example, as shown in FIG. 2A and FIG. 2B, in the display area 10, the auxiliary signal lines 200 are arranged in one-to-one correspondence with and alternately with the driving signal lines 100, and in the second sub-display area 12, the auxiliary signal lines 200 can be further designed to have a length substantially equal to that of the adjacent driving signal lines 100. Specifically, for example, as shown in FIG. 2A and FIG. 2B, four driving signal lines 100 (numbered from A1 to A4) and four auxiliary signal lines 200 (numbered from B1 to B4) are shown, the driving signal lines 100 numbered from A1 to A3 and the auxiliary signal lines 200 numbered from B1 to B3 are located in the second sub-display area 12, the driving signal line 100 numbered A4 and the auxiliary signal line 200 numbered B4 are located in the first sub-display area 11, the driving signal lines 100 and the auxiliary signal lines 200 are arranged alternately, and the connecting signal line 300 connects the auxiliary signal line 200 numbered B4 adjacent to the driving signal line 100 numbered A4 with the driving signal line 100 numbered A1 through the first connecting hole 301, i.e., the connecting signal line 300 connected with the driving signal line 100 numbered A1 spans two driving signal lines 100 numbered A2 and A3 and two auxiliary signal lines 200 numbered B2 and B3. Figure 8

[0090] It should be noted that, in the embodiments as shown in FIG. 2A and FIG. 2B, in the second sub-display area 12, the auxiliary signal lines 200 are not used for connection circuit, so they can be designed as continuous line segments. However, in some embodiments, if the first interval area between the first sub-auxiliary signal line and the second sub-auxiliary signal line located in the first sub-display area 11 is not completely blocked by the light shielding structure 40, in the second sub-display area 12, the auxiliary signal lines can also be designed to be composed of the broken first sub-auxiliary signal line and the second sub-auxiliary signal line, and the position of the first interval area between the first sub-auxiliary signal line and the second sub-auxiliary signal line in the first sub-display area 11 and the second sub-display area 12 can be adjusted, so that the first interval area between the first sub-auxiliary signal line and the second sub-auxiliary signal line in the whole display area does not have regional difference in vision, so that the first interval area is visually invisible. Figure 7 Figure 8

[0091] ​​​​It should be noted that, in at least one embodiment of the present disclosure, in the light of the lengthening design of the auxiliary signal line, the bridging signal line can also be lengthened, so that the optical visual problems caused by the length difference of the bridging signal line will not occur in the visual effect.

[0092] For example, in at least one embodiment of the present disclosure, as shown in Figure 9 and Figure 10 , each bridging signal line includes two first sub-bridging signal lines and at least one second sub-bridging signal line, the first sub-bridging signal lines and the second sub-bridging signal lines are arranged alternately, the driving signal line located in the second sub-display area 12 is connected with the corresponding auxiliary signal line located in the first sub-display area 11 through the first sub-bridging signal line, the second interval area is arranged between the first sub-bridging signal line and the second sub-bridging signal line, the extension tracks of the first sub-bridging signal line and the second sub-bridging signal line are coincident, and the orthographic projection of the second interval area in the thickness direction of the display panel at least partially overlaps with the orthographic projection of the light shielding structure 40 in the thickness direction of the display panel. In one embodiment, in the same bridging signal line 300, the orthographic projection of the second interval area in the thickness direction of the display panel is located within the orthographic projection of the light shielding structure 40 in the thickness direction of the display panel. The bridging signal line crosses the display area macroscopically, so that the bridging signal line 300 is relatively uniformly arranged in the display area, thereby further relieving the problem of uneven optical effect caused by the arrangement of the bridging signal line 300. Specifically, the bridging signal line 300 includes two first sub-bridging signal lines 310 and three second sub-bridging signal lines 320, the two first sub-bridging signal lines 310 and the three second sub-bridging signal lines 320 are arranged alternately, each bridging signal line 300 is provided with a first sub-bridging signal line 310 in each second sub-display area 12, and is provided with a second sub-bridging signal line 320 in the first sub-display area 11, the first sub-bridging signal line 310 in the second sub-display area 12 extends to the first sub-display area 11 to be connected with the auxiliary signal line 200.

[0093] It should be noted that, in the embodiment of the present disclosure, in the second sub-display area 12, the first sub-bridging signal line and the second sub-bridging signal line can be designed to be spaced apart from each other as shown in Figure 10 ; or can also be designed to be connected with each other.

[0094] In some embodiments of the present disclosure, the extension line of the first sub-bridge signal line crosses the extension line of the second sub-bridge signal line, and the second sub-bridge signal line is perpendicular to the extension trajectory of the driving signal line. In this way, the first sub-bridge signal line is arranged obliquely (non-perpendicularly) relative to the driving signal line, so that the position of the first bridge hole of the first sub-bridge signal line and the corresponding driving signal line can be adjusted by adjusting the length of the first sub-bridge signal line, so that the first bridge hole is more easily arranged at a position completely blocked by the light shielding structure.

[0095] In some other embodiments of the present disclosure, as shown in Figure 9 and Figure 10 , the extension trajectory of the bridge signal line 300 is a straight line, and the extension trajectory of the bridge signal line 300 is perpendicular to the extension trajectory of the driving signal line 100. In this way, the bridge signal line 300 and the driving signal line 100 will present a cross arrangement, which will be more consistent with the wiring mode of the signal lines in the display panel (such as the arrangement relationship between the gate line and the driving signal line), so as to reduce the optical effect unevenness of the display panel caused by the arrangement of the bridge signal line 300.

[0096] In some design scenarios of the display panel, the sum of the design widths of the two second sub-display areas is still less than the design width of the first sub-display area, so that the number of the driving signal lines in the first sub-display area can be much greater than the sum of the numbers of the driving signal lines in the two second sub-display areas. In this case, in the part of the display area far away from the bonding area, there can be no bridge signal line. In this way, in the positions of the display area far away from and close to the bonding area, there can be optical difference problems caused by the presence or absence of the bridge signal line. In this regard, dummy signal lines can be arranged in the part of the display area far away from the bonding area to offset the optical difference problems in other areas.

[0097] Specifically, as shown in Figure 9 , the display panel can further include a plurality of dummy signal lines 400 arranged side by side in the display area 10 and located on the side of the bridge signal line 300 far away from the bonding area 30, and the dummy signal line 400 crosses the driving signal line 100. For example, further, the spacing between adjacent dummy signal lines 400, the spacing between adjacent bridge signal lines 300 and dummy signal lines 400, and the spacing between adjacent bridge signal lines 300 are substantially equal. In this way, by arranging the dummy signal line 400 in the area of the display area 10 where the bridge signal line 300 is not arranged, the dummy signal line 400 can cooperate with the bridge signal line 300 to make the structure formed by the two uniform in the entire display area, so as to further alleviate the problem of optical effect unevenness caused by the arrangement of the bridge signal line.

[0098] In the embodiments of the present disclosure, in the case that the light-shielding structure is the original design in the display panel, the size, position, etc. of the light-shielding structure are not limited, and can be selected according to actual conditions. In the following, several specific embodiments are used to illustrate several selections of the light-shielding structure.

[0099] In some embodiments of the present disclosure, referring back to Figures 2 to 4 , the light-shielding structure 40 includes the first electrode 41, and at least part of the first lap joint hole 301 is located in the projection of the first electrode 41 in the thickness direction of the display panel. Specifically, the first electrode 41 is an anode. That is, at least one first electrode 41 is multiplexed as the light-shielding structure 40. In an embodiment, a plurality of first electrodes 41 are multiplexed as the light-shielding structure 40.

[0100] The display panel includes a plurality of sub-pixels, and the sub-pixel includes the first electrode 41. In order to make the sub-pixel have a larger aperture ratio (related to the light-emitting area and the light-out area, and the anode limits the light-emitting area), the anode will have a relatively large design area to ensure the light-out rate of the sub-pixel. In addition, based on the light-out direction (for example, top emission) and the microcavity effect, the anode is generally designed as a non-transparent electrode. In the embodiments of the present disclosure, by shielding the first lap joint hole through the anode, the visual uneven problem caused by the setting of the first lap joint hole can be more effectively alleviated.

[0101] In actual design, due to the limitation of process precision, wiring position, etc., the projection of some first lap joint holes in the thickness direction of the display panel may fall outside the projection of the first electrode in the thickness direction of the display panel.

[0102] Therefore, in some other embodiments of the present disclosure, as shown in Figure 11 and Figure 12 , the display panel can also be designed to include a touch electrode to have a touch function. In this case, the light-shielding structure 40 can include a touch electrode 42. In actual design, the material of the touch electrode is generally a metal material with good conductivity, and the material of the touch electrode is a non-transparent material. In order to ensure the light transmittance, the touch electrode layer is designed in a grid shape to avoid shielding the light-out of the sub-pixel. Therefore, the projection of the touch electrode 42 in the thickness direction of the display panel is located in the projection of the gap between the adjacent first electrodes in the thickness direction of the display panel. Therefore, at least part of the first lap joint hole in the thickness direction of the display panel can be located in the projection of the touch electrode 42 in the thickness direction of the display panel, so that at least part of the first lap joint hole 301 can be shielded by the touch electrode 42, thereby further alleviating the visual uneven problem caused by the setting of the first lap joint hole 301.

[0103] For example, in the embodiments of the present disclosure, as shown in Figure 12As shown, the display panel can include an encapsulation layer 500 covering the display functional layer, and the touch electrode 42 can be located on the encapsulation layer 500. The encapsulation layer can be a single-layer structure or a multi-layer structure, which can be designed according to the current encapsulation layer of the display panel, and details are not described herein.

[0104] In the embodiments of the present disclosure, the implementation form of the touch function of the touch electrode is not limited, and can be designed according to actual needs, under the condition that the touch electrode layer is designed in a grid shape.

[0105] For example, the touch electrode can include a plurality of first conductive structures arranged side by side and a plurality of second conductive structures arranged side by side, and the first conductive structures and the second conductive structures cross to form touch capacitors (touch units) at the intersections. In some designs, the first conductive structures and the second conductive structures can be arranged in different layers; or in other designs, as shown in FIG. 4A, the first conductive structures and the second conductive structures can be arranged in the same layer. Figure 12 As shown, the touch electrode layer includes a first conductive layer 421 and a second conductive layer 422, the second conductive layer 422 is used to form the first conductive structures and the second conductive structures, because the first conductive structures and the second conductive structures are in the same layer, at the intersections of the two, one of the first conductive structures and the second conductive structures will be disconnected to avoid the connection of the first conductive structures and the second conductive structures, and the first conductive layer 421 is used to form a conductive bridge to connect the disconnected first conductive structures or second conductive structures. In this case, the conductive bridge can also be arranged in a grid shape, or can be arranged as a wire, and the orthogonal projection of the wire in the thickness direction of the display panel is located within the orthogonal projection of the gap between adjacent first electrodes in the thickness direction of the display panel.

[0106] It should be noted that in the embodiments of the present disclosure, as shown in Figure 13 As shown, in the case where the light shielding structure 40 includes the first electrode 41 and the touch electrode 42, the first electrode 41 and the touch electrode 42 can be used to jointly shield the first lap joint hole 301, that is, part of the orthogonal projection of the first lap joint hole 301 in the thickness direction of the display panel is located within the orthogonal projection of the touch electrode 42 in the thickness direction of the display panel, and another part of the orthogonal projection of the first lap joint hole 301 in the thickness direction of the display panel is located within the orthogonal projection of the first electrode 41 in the thickness direction of the display panel. That is, at least one first electrode 41 and at least one touch electrode 42 are multiplexed as the light shielding structure 40. In one of the embodiments, a plurality of first electrodes 41 and a plurality of touch electrodes 42 are multiplexed as the light shielding electrode 40.

[0107] It should be noted that in actual processes, the first lap joint hole may be offset due to equipment precision and other conditions; in addition, the position of the lap joint between the signal lines is widened to ensure lap joint precision, thereby causing difficulty in shielding the first lap joint hole. These conditions may cause the first lap joint hole to not be completely shielded by the light shielding structure. In this case, a dummy lap joint hole can be actively and additionally provided to cooperate with the first lap joint hole, so that the lap joint holes in the entire display area are relatively uniformly distributed. In this case, even if the lap joint holes are not completely shielded, the lap joint holes will not cause optical difference problems between different regions.

[0108] For example, as shown in Figure 14 and Figure 15 , the lap joint signal line 300 is formed by the first lap joint segment 330 and the second lap joint segment 340, the first lap joint segment 330 and the second lap joint segment 340 are arranged alternately, the third insulating layer 53 is arranged between the first lap joint segment 330 and the second lap joint segment 340, the second lap joint hole 302 is arranged in the third insulating layer 53, the first lap joint segment 330 and the second lap joint segment 340 are connected through the second lap joint hole 302, the target auxiliary signal line 200 and the target driving signal line 100 are respectively connected to the lap joint signal line 300 through the first lap joint hole 301, and the second lap joint hole 302 is located at the intersection of the lap joint signal line 300 and the other auxiliary signal line 200 and the intersection of the lap joint signal line 300 and the other driving signal line 100. For example, further, the driving signal line 100 and the auxiliary signal line 200 are in the same layer and are made of the same material, so as to reduce the film layer thickness of the display panel, thereby facilitating the thin design of the display panel. In this way, by arranging the second lap joint hole 302, all the lap joint holes (including the first lap joint hole 301 and the second lap joint hole 302) are uniformly distributed in the display area 10, so that even if the lap joint holes are not completely shielded by the light shielding structure 40 due to position offset, the uniform arrangement of the lap joint holes will not cause optical effects to be uneven between different regions of the display area 10.

[0109] In embodiments of the present disclosure, the arrangement rule of the lap joint hole is not limited as long as the first lap joint hole is shielded by the light shielding structure as much as possible, and the lap joint hole can be designed based on the need to reduce the optical difference of each region.

[0110] For example, in some embodiments of the present disclosure, referring back to Figure 1 and Figure 2 , the driving signal line 100 located in the second sub-display area 12 and closer to the first sub-display area 11 is connected to the auxiliary signal line 200 located in the first sub-display area 11 and farther from the second sub-display area 12. In this way, the first lap joint hole 301 is arranged in multiple columns, and the arrangement direction of the multiple columns is crossed with the driving signal line 100.

[0111] For example, in some embodiments of the present disclosure, the bridging signal line can not be limited to the design as shown in Figure 1 and Figure 2 but can also be designed as a radial as shown in Figure 16 , that is, the bridging signal line 300 intersects with the driving signal line 100 but is not perpendicular. In this case, by controlling the degree of inclination of the bridging signal line 300 relative to the driving signal line 100, the position of the first bridging hole 301 is adjusted, thereby adjusting the distribution of the first bridging hole 301 in the entire display area, thereby reducing the problem of uneven optical effect in each area.

[0112] For example, in some embodiments of the present disclosure, the first bridging hole 301 can be randomly arranged as shown in Figure 17 In this case, for a part of the first bridging hole 301 corresponding driving signal line 100 and auxiliary signal line 200, the closer the driving signal line 100 to the first sub-display area 11 and located in the second sub-display area 12, the closer the corresponding connected auxiliary signal line 200 to the second sub-display area 12 in the first sub-display area 11; for another part of the first bridging hole 301 corresponding driving signal line 100 and auxiliary signal line 200, the closer the driving signal line 100 to the first sub-display area 11 and located in the second sub-display area 12, the farther the corresponding connected auxiliary signal line 200 to the second sub-display area 12 in the first sub-display area 11. For example, further, in the first sub-display area 11, the effective lengths of two auxiliary signal lines 200 (such as the first sub-auxiliary signal line) to two second sub-display areas 12 are not equal. In this way, even if the first bridging hole 301 may have a position offset and is not completely shielded by the light shielding structure, by randomly arranging the first bridging hole 301, the optical effect (such as the line) caused by the regular arrangement of the first bridging hole 301 can be avoided.

[0113] It should be noted that in the embodiments of the present disclosure, the designs as shown in Figure 16 and Figure 17 may be combined to jointly regulate the distribution position of the first bridging hole 301.

[0114] For example, the display panel provided by the embodiments of the present disclosure can be any product or component with display function, such as a television, a digital camera, a mobile phone, a watch, a tablet computer, a notebook computer, a navigator, etc.

[0115] The above merely provides the preferred embodiments of the present disclosure but should not be used to limit the present disclosure, and any modification, equivalent replacement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A display panel, characterized in that, The display panel includes a display area and a bonding area located on at least one side of the display area. The display area is divided into a first sub-display area and a second sub-display area located on at least one side of the first sub-display area. The display panel includes a substrate, a driving circuit layer disposed on one side of the substrate, and a light-shielding structure disposed on the side of the driving circuit layer opposite to the substrate. The driving circuit layer includes: Multiple drive signal lines are arranged in parallel, some of which are located in the second sub-display area, and others extend from the first sub-display area to the bonding area; Multiple auxiliary signal lines, at least one of which is alternately arranged with the driving signal line located in the first sub-display area, and extends from the first sub-display area into the bonding area; and Overlap signal lines are arranged in the display area. The layer where the overlap signal lines are located is different from the layer where the drive signal lines are located, and the layer where the overlap signal lines are located is different from the layer where the auxiliary signal lines are located. The drive signal lines located in the second sub-display area and the auxiliary signal lines located in the first sub-display area are respectively overlapped with the overlap signal lines through the first overlap hole. In the thickness direction of the display panel, the orthographic projection of the first overlapping hole at least partially overlaps with the orthographic projection of the light-shielding structure. The overlapping signal line further includes a first overlapping segment and a second overlapping segment. The layers where the first overlapping segment is located and the layers where the second overlapping segment is located are different. The first overlapping segment and the second overlapping segment are connected through a second overlapping hole. The target auxiliary signal line in the auxiliary signal line and the target driving signal line in the driving signal line are respectively overlapped with the overlapping signal line through the first overlapping hole. The second overlapping hole is located at the intersection of the overlapping signal line and other auxiliary signal lines and the intersection of the overlapping signal line and other driving signal lines.

2. The display panel according to claim 1, characterized in that, The orthographic projection of the first overlapping hole in the thickness direction of the display panel is located within the orthographic projection of the light-shielding structure in the thickness direction of the display panel.

3. The display panel according to claim 1, characterized in that, In the first sub-display area, the auxiliary signal line includes a first sub-auxiliary signal line and a second sub-auxiliary signal line, with a first interval region provided between the first sub-auxiliary signal line and the second sub-auxiliary signal line, and the extension trajectories of the first sub-auxiliary signal line and the second sub-auxiliary signal line overlap. The first sub-auxiliary signal line is connected to the overlapping signal line through the first overlapping hole, and the orthographic projection of the first interval region in the thickness direction of the display panel at least partially overlaps with the orthographic projection of the light-shielding structure in the thickness direction of the display panel.

4. The display panel according to claim 3, characterized in that, In the same auxiliary signal line, the orthographic projection of the first interval region in the thickness direction of the display panel is located within the orthographic projection of the light-shielding structure in the thickness direction of the display panel.

5. The display panel according to claim 4, characterized in that, The first gap region and the first overlapping hole are projected onto the thickness direction of the display panel, and the projection of the light-shielding structure onto the thickness direction of the display panel is located within the projection of the light-shielding structure onto the thickness direction of the display panel.

6. The display panel according to claim 1, characterized in that, The auxiliary signal lines are only located in the first sub-display area; or... In the display area, the auxiliary signal lines are arranged in a one-to-one correspondence with the drive signal lines and are alternately arranged.

7. The display panel according to claim 1, characterized in that, The overlapping signal line includes a first sub-overlapping signal line and a second sub-overlapping signal line. The driving signal line located in the second sub-display area is connected to the corresponding auxiliary signal line located in the first sub-display area through the first sub-overlapping signal line. A second gap area is provided between the first sub-overlapping signal line and the second sub-overlapping signal line. The extension trajectories of the first sub-overlapping signal line and the second sub-overlapping signal line coincide. The orthographic projection of the second gap area in the thickness direction of the display panel at least partially overlaps with the orthographic projection of the light-shielding structure in the thickness direction of the display panel.

8. The display panel according to claim 7, characterized in that, In the same overlapping signal line, the orthographic projection of the second interval region in the thickness direction of the display panel is located within the orthographic projection of the light-shielding structure in the thickness direction of the display panel.

9. The display panel according to claim 8, characterized in that, The second spacing region and the first overlapping hole are projected onto the thickness direction of the display panel in the orthographic projection of the light-shielding structure within the orthographic projection of the display panel in the thickness direction.

10. The display panel according to claim 7, characterized in that, The extension of the first sub-overlap signal line intersects the extension of the second sub-overlap signal line, and the extension trajectory of the second sub-overlap signal line is perpendicular to that of the drive signal line; or... The extension trajectory of the overlapping signal line is a straight line, and the extension trajectory of the overlapping signal line is perpendicular to the extension trajectory of the driving signal line.

11. The display panel according to claim 1, characterized in that, Also includes: A dummy signal line is arranged in the display area, and the dummy signal line is located on the side of the overlapping signal line away from the bonding area; wherein the dummy signal line crosses the drive signal line.

12. The display panel according to claim 11, characterized in that, The display panel includes multiple dummy signal lines and multiple overlapping signal lines, wherein the spacing between adjacent dummy signal lines, the spacing between adjacent overlapping signal lines and dummy signal lines, and the spacing between adjacent overlapping signal lines are equal.

13. The display panel according to claim 1, characterized in that, The display panel further includes a planarization layer disposed on the side of the driving circuit layer opposite to the substrate, a first electrode layer disposed on the side of the planarization layer opposite to the driving circuit layer, a second electrode layer disposed on the side of the first electrode layer opposite to the planarization layer, and a touch electrode layer disposed on the side of the second electrode layer opposite to the first electrode layer. The light-shielding structure includes at least one of at least a portion of the first electrode layer, at least a portion of the touch electrode layer, and at least a portion of the planarization layer.

14. The display panel according to claim 13, characterized in that, The light-shielding structure includes at least one of at least a portion of the first electrode layer and at least a portion of the touch electrode layer.

15. The display panel according to claim 14, characterized in that, The first electrode layer includes a plurality of first electrodes, the touch electrode layer includes a plurality of touch electrodes, and the light-shielding structure includes at least one of the first electrodes and at least one of the touch electrodes.

16. The display panel according to claim 15, characterized in that, At least one of the first electrodes is reused as the light-shielding structure, or at least one of the first electrodes and at least one of the touch electrodes are reused together as the light-shielding structure.

17. The display panel according to claim 1, characterized in that, The display panel includes a first electrode located on the side of the driving circuit layer opposite to the substrate. The light-shielding structure includes the first electrode, and at least a portion of the first overlapping hole has its orthographic projection in the thickness direction of the display panel located within the orthographic projection of the first electrode in the thickness direction of the display panel.

18. The display panel according to claim 17, characterized in that, The display panel further includes a second electrode, which is located on the side of the first electrode away from the driving circuit layer. The first electrode is the anode, and the second electrode is the cathode.

19. The display panel according to claim 17, characterized in that, The first electrode is reused as the light-shielding structure.

20. The display panel according to claim 17, characterized in that, The display panel further includes a touch electrode located on the side of the first electrode away from the driving circuit layer. The light-shielding structure includes a touch electrode. The orthographic projection of the touch electrode in the thickness direction of the display panel is located within the orthographic projection of the gap between adjacent first electrodes in the thickness direction of the display panel. At least a portion of the orthographic projection of the first overlapping hole in the thickness direction of the display panel overlaps at least partially with the orthographic projection of the touch electrode in the thickness direction of the display panel.

21. The display panel according to claim 20, characterized in that, At least a portion of the first overlapping hole's orthographic projection in the thickness direction of the display panel lies within the orthographic projection of the touch electrode in the thickness direction of the display panel.

22. The display panel according to claim 20, characterized in that, The first electrode and the touch electrode are reused together as the light-shielding structure.

23. The display panel according to claim 1, characterized in that, The drive signal line and the auxiliary signal line are in the same layer and made of the same material.

24. The display panel according to claim 1, characterized in that, A third insulating layer is provided between the first overlapping section and the second overlapping section, and the third insulating layer is provided with the second overlapping hole.

25. The display panel according to claim 1, characterized in that, The first overlapping holes are randomly arranged.

26. The display panel according to claim 25, characterized in that, The display panel includes multiple auxiliary signal lines and multiple overlapping signal lines. For a portion of the driving signal lines and auxiliary signal lines corresponding to the first overlapping holes, the driving signal lines that are closer to the first sub-display area and located in the second sub-display area are connected to auxiliary signal lines that are closer to the second sub-display area in the first sub-display area. For another portion of the driving signal lines and auxiliary signal lines corresponding to the first overlapping holes, the driving signal lines that are closer to the first sub-display area and located in the second sub-display area are connected to auxiliary signal lines that are farther away from the second sub-display area in the first sub-display area.

Images