Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a substrate; the pixel defining layer is located on one side of the substrate, and the pixel defining layer comprises a plurality of first light-transmitting openings for defining pixel units; the conductive layer is arranged between the substrate and the pixel defining layer; wherein the conductive layer comprises a first wire, and in at least part of the first light-transmitting opening, the overlapping position of the vertical projection of the first wire on the substrate and the vertical projection of the first light-transmitting opening on the substrate is different; the overlapping position is the position of the overlapping part of the first wire and the vertical projection of the first light-transmitting opening on the substrate, and is opposite to the vertical projection of the corresponding first light-transmitting opening on the substrate. According to the technical scheme provided by the embodiment of the invention, the difference of the flatness of the film layer in the pixel region can be reduced, so that the problem of display color cast is solved, and the display effect is improved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] With the development of display technology, people's requirements for display quality are getting higher and higher.

[0003] However, existing display panels are prone to poor display effects during display, which limits further applications of the display panels. Summary of the Invention

[0004] Embodiments of the present invention provide a display panel and a display device to improve the display effect of the display panel.

[0005] According to one aspect of the present invention, there is provided a display panel, comprising:

[0006] substrate;

[0007] a pixel defining layer, located on one side of the substrate, the pixel defining layer comprising a plurality of first light-transmitting openings defining pixel units;

[0008] a conductive layer disposed between the substrate and the pixel defining layer;

[0009] In which, the conductive layer includes a first routing line, and the vertical projection of the first routing line on the substrate is different from the overlapping position of the vertical projection of at least part of the first light-transmitting opening on the substrate; the overlapping position is the relative position of the overlapping part of the vertical projection of the first routing line and the first light-transmitting opening on the substrate and the corresponding vertical projection of the first light-transmitting opening on the substrate.

[0010] Optionally, the first trace includes a main portion and a branch portion, the branch portion includes a first connecting sub-portion and a second connecting sub-portion, the second connecting sub-portion is connected to the main portion via the first connecting sub-portion, the main portion and the second connecting sub-portion extend along a first direction, the first connecting sub-portion extends along a second direction, the first direction and the second direction intersect and are both perpendicular to the thickness direction of the substrate;

[0011] The vertical projection of the second connecting sub-portion on the substrate overlaps with a central area of ​​a portion of the vertical projection of the first light-transmitting opening on the substrate, and the vertical projection of the main portion on the substrate overlaps with an edge area of ​​a portion of the vertical projection of the first light-transmitting opening on the substrate;

[0012] Optionally, the first wiring includes a metal wiring.

[0013] Optionally, the first trace includes a main portion and a branch portion, the branch portion includes a first connecting sub-portion and a second connecting sub-portion, the second connecting sub-portion is connected to the main portion via the first connecting sub-portion, the main portion and the second connecting sub-portion extend along a first direction, the first connecting sub-portion extends along a second direction, the first direction and the second direction intersect and are both perpendicular to the thickness direction of the substrate;

[0014] The vertical projection of the main body on the substrate overlaps with a central area of ​​a portion of the vertical projection of the first light-transmitting opening on the substrate, and the vertical projection of the second connecting sub-portion on the substrate overlaps with an edge area of ​​a portion of the vertical projection of the first light-transmitting opening on the substrate.

[0015] Optionally, the first wiring includes a metal wiring.

[0016] Optionally, the pixel unit includes a plurality of sub-pixels of different types, and a vertical projection of the first wiring on the substrate overlaps with vertical projections of the first light-transmitting openings corresponding to the sub-pixels of different types on the substrate at different positions;

[0017] Optionally, the sizes of the first light-transmitting openings corresponding to different types of sub-pixels are different;

[0018] Optionally, a vertical projection of the first wiring on the substrate overlaps at the same position as a vertical projection of the first light-transmitting opening corresponding to the sub-pixel of the same type on the substrate.

[0019] Optionally, the pixel unit includes a first sub-pixel and a second sub-pixel, and the first sub-pixel and the second sub-pixel emit light of different colors;

[0020] In the extension direction of the first wiring, the first sub-pixels and the second sub-pixels are alternately arranged in sequence, and the opening size of the first light-transmitting opening of the second sub-pixel is larger than the opening size of the first light-transmitting opening of the first sub-pixel;

[0021] The vertical projection of the first wiring on the substrate overlaps with a central area of ​​a vertical projection of the first light-transmitting opening of the first sub-pixel on the substrate, and the vertical projection of the first wiring on the substrate overlaps with an edge area of ​​a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate;

[0022] Optionally, the pixel unit further includes a third sub-pixel, and a vertical projection of the first wiring on the substrate does not overlap with a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate;

[0023] Optionally, the first sub-pixel is a red sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a green sub-pixel. The vertical projection of the first wiring on the substrate is located on the central axis of the vertical projection of the first light-transmitting opening of the first sub-pixel on the substrate, and the vertical projection of the first wiring on the substrate is located on one side of the central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate.

[0024] Optionally, the conductive layer further includes a second trace, and the second trace is provided in the same layer as the first trace;

[0025] A vertical projection of the second wiring on the substrate overlaps an edge area of ​​a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate, and the vertical projection of the second wiring on the substrate and the vertical projection of the first wiring on the substrate are located on both sides of a central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate;

[0026] Preferably, a vertical projection of the first wiring on the substrate and a vertical projection of the second wiring on the substrate respectively overlap with the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate on both sides of a central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate, and have the same overlapping area;

[0027] Preferably, the shortest distance between a vertical projection of the first wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate is the same as the shortest distance between a vertical projection of the second wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate.

[0028] Optionally, at the first light-transmitting opening of the second sub-pixel, a vertical projection of the second wiring on the substrate and a vertical projection of the first wiring on the substrate are symmetrically arranged about a central axis of a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate;

[0029] Optionally, an extending direction of the second wiring is the same as an extending direction of the first wiring;

[0030] Optionally, the conductive layer further includes a third wiring, and a vertical projection of the third wiring on the substrate and a vertical projection of the second wiring on the substrate are located on both sides of a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate;

[0031] Preferably, a vertical projection of the second wiring on the substrate and a vertical projection of the third wiring on the substrate respectively have the same overlapping area with the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate, on both sides of a central axis of the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate;

[0032] Preferably, the shortest distance between a vertical projection of the second wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate is the same as the shortest distance between a vertical projection of the third wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate.

[0033] Optionally, at the first light-transmitting opening of the third sub-pixel, a vertical projection of the second wiring on the substrate and a vertical projection of the third wiring on the substrate are symmetrically arranged about a central axis of the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate;

[0034] Optionally, the third routing line is provided on the same layer as the first routing line, and an extension direction of the third routing line is the same as an extension direction of the second routing line.

[0035] Optionally, at least one pixel circuit is formed on the substrate, the pixel circuit includes a driving transistor and a first initialization transistor, the first initialization transistor is connected between the first wiring and the light-emitting element, and the first initialization transistor is used to transmit a first initialization voltage on the first wiring to the light-emitting element;

[0036] The driving transistor is connected to the second wiring, and is used for transmitting the power supply voltage on the second wiring to the light-emitting element to drive the light-emitting element to emit light.

[0037] Optionally, the conductive layer further includes a fourth routing line, and the fourth routing line and the first routing line are provided in a different layer;

[0038] The vertical projection of the fourth wiring on the substrate is located on both sides of the central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate;

[0039] Preferably, the vertical projections of the fourth traces on the substrate on both sides of the central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate have the same overlapping area as the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate;

[0040] Preferably, the fourth traces located on both sides of the central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate have the same shortest distance between their vertical projections on the substrate and the central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate;

[0041] Optionally, a portion where a vertical projection of the fourth trace on the substrate overlaps with a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate is substrate-symmetrically arranged about a central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate;

[0042] Optionally, a vertical projection of the fourth wiring on the substrate covers a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate;

[0043] Optionally, a vertical projection of the fourth wiring on the substrate does not overlap with a vertical projection of the first light-transmitting opening of the first sub-pixel on the substrate;

[0044] Optionally, the fourth wiring is located on a side of the first wiring away from the substrate;

[0045] Optionally, the conductive layer includes a first conductive layer, a second conductive layer, a third conductive layer, a fourth conductive layer and a fifth conductive layer that are stacked;

[0046] The first conductive layer, the second conductive layer, and the third conductive layer are used to form transistors in a pixel circuit. The first wiring is located in the fourth conductive layer, and the fourth wiring is located in the fifth conductive layer.

[0047] Optionally, the conductive layer further includes a fifth routing line, and the fifth routing line is provided on the same layer as the fourth routing line;

[0048] The fifth wiring is located on a side of the first light-transmitting opening of the first sub-pixel and the second sub-pixel close to the substrate, and a vertical projection of the fifth wiring on the substrate is located on both sides of a central axis of the vertical projection of the corresponding first light-transmitting opening on the substrate;

[0049] Preferably, the vertical projections of the fifth traces on the substrate on both sides of the central axis of the vertical projection of the corresponding first light-transmitting opening on the substrate have the same overlapping area as the vertical projection of the first light-transmitting opening on the substrate;

[0050] Preferably, the fifth traces located on both sides of the central axis of the vertical projection of the corresponding first light-transmitting opening on the substrate have the same shortest distance between their vertical projections on the substrate and the central axis of the vertical projection of the corresponding first light-transmitting opening on the substrate;

[0051] The fifth wiring is located on a side of the first light-transmitting opening of the first sub-pixel and the second sub-pixel close to the substrate, and vertical projections of the fifth wiring on the substrate are symmetrically arranged about a central axis of vertical projections of the corresponding first light-transmitting openings on the substrate;

[0052] Optionally, the fifth routing line and the fourth routing line extend in the same direction;

[0053] Optionally, the conductive layer further includes a sixth routing line, and the sixth routing line is provided on the same layer as the fourth routing line;

[0054] Optionally, a vertical projection of the sixth wiring on the substrate is located on a central axis of a vertical projection of the corresponding first light-transmitting opening on the substrate.

[0055] Optionally, the display panel further includes a first electrode and an isolation structure, the first electrode is located on a side of the pixel defining layer close to the substrate, and the first light-transmitting opening exposes the first electrode;

[0056] The isolation structure is located on a side of the pixel defining layer away from the substrate, and the isolation structure is provided with a second light-transmitting opening, wherein the second light-transmitting opening exposes the first light-transmitting opening and at least a portion of the pixel defining layer;

[0057] Optionally, the display panel further includes a light-emitting functional layer and a second electrode, the light-emitting functional layer is located on a side of the first electrode away from the substrate, the second electrode is located on a side of the light-emitting functional layer away from the substrate, and the second electrode is located in the first light-transmitting opening and the second light-transmitting opening;

[0058] Optionally, the second electrode contacts at least a portion of the isolation structure.

[0059] Optionally, at least some adjacent second electrodes are insulated from each other.

[0060] Optionally, a plurality of the first light-transmitting openings are arranged in an array, the isolation structure is provided around the first light-transmitting openings, and in at least the same row of pixel units, the isolation structures corresponding to adjacent pixel units are insulated from each other; in the same pixel unit, the second electrode is in contact with the isolation structure;

[0061] Optionally, in the pixel units in the same column, the isolation structures corresponding to adjacent pixel units are insulated from each other or connected to each other;

[0062] Optionally, the isolation structure comprises a conductive material, and the isolation structure is further configured to transmit a power supply voltage to the second electrode.

[0063] Optionally, the isolation structure includes a support portion and a crown portion, the crown portion is located on a side of the support portion away from the base, and a vertical projection of the support portion on the base is located within a vertical projection of the crown portion on the base.

[0064] Optionally, the isolation structure further includes a root portion, the root portion is located on a side of the support portion close to the base, and a vertical projection of the support portion on the base is located within a vertical projection of the root portion on the base;

[0065] Optionally, the root comprises a conductive material.

[0066] Optionally, the isolation structure is further provided with an isolation opening exposing the pixel defining layer, and the isolation opening is spaced apart from the second light-transmitting opening.

[0067] According to another aspect of the present invention, there is provided a display panel, comprising:

[0068] substrate;

[0069] a pixel defining layer, located on one side of the substrate, the pixel defining layer comprising a plurality of first light-transmitting openings defining pixel units;

[0070] a conductive layer disposed between the substrate and the pixel defining layer;

[0071] In which, the conductive layer includes a first trace and a second trace arranged in the same layer, the vertical projection of the first trace on the substrate is located on the central axis of the vertical projection of at least part of the first light-transmitting opening on the substrate, and / or the vertical projection of the first trace on the substrate and the vertical projection of the second trace on the substrate are located on both sides of the central axis of the vertical projection of at least part of the first light-transmitting opening on the substrate.

[0072] Optionally, the first trace includes a main portion and a branch portion, the branch portion includes a first connecting sub-portion and a second connecting sub-portion, the second connecting sub-portion is connected to the main portion via the first connecting sub-portion, the main portion and the second connecting sub-portion extend along a first direction, the first connecting sub-portion extends along a second direction, the first direction and the second direction intersect and are both perpendicular to the thickness direction of the substrate;

[0073] In which, the vertical projection of the main body on the substrate overlaps with the central area of ​​the vertical projection of part of the first light-transmitting opening on the substrate, and the vertical projection of the second connecting sub-portion on the substrate overlaps with the edge area of ​​the vertical projection of part of the first light-transmitting opening on the substrate; or, the vertical projection of the second connecting sub-portion on the substrate overlaps with the central area of ​​the vertical projection of part of the first light-transmitting opening on the substrate, and the vertical projection of the main body on the substrate overlaps with the edge area of ​​the vertical projection of part of the first light-transmitting opening on the substrate.

[0074] Optionally, the pixel unit includes a first sub-pixel and a second sub-pixel, and the first sub-pixel and the second sub-pixel emit different colors;

[0075] The vertical projection of the first wiring on the substrate is located on the central axis of the vertical projection of the first light-transmitting opening of the first sub-pixel on the substrate. At the first light-transmitting opening of the second sub-pixel, the vertical projection of the second wiring on the substrate and the vertical projection of the first wiring on the substrate are located on both sides of the central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate.

[0076] Preferably, a vertical projection of the first wiring on the substrate and a vertical projection of the second wiring on the substrate respectively overlap with the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate on both sides of a central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate, and have the same overlapping area;

[0077] Preferably, the shortest distance between a vertical projection of the first wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate is the same as the shortest distance between a vertical projection of the second wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate.

[0078] Optionally, at the first light-transmitting opening of the second sub-pixel, a vertical projection of the second wiring on the substrate and a vertical projection of the first wiring on the substrate are symmetrically arranged about a central axis of a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate;

[0079] Preferably, the first routing line and the second routing line are arranged on the same layer;

[0080] Optionally, the pixel unit further includes a third sub-pixel, and a vertical projection of the first wiring on the substrate does not overlap with a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate;

[0081] Preferably, the conductive layer further includes a third wiring, wherein a vertical projection of the third wiring on the substrate and a vertical projection of the second wiring on the substrate are located on both sides of a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate;

[0082] Preferably, a vertical projection of the second wiring on the substrate and a vertical projection of the third wiring on the substrate respectively have the same overlapping area with the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate, on both sides of a central axis of the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate;

[0083] Preferably, the shortest distance between a vertical projection of the second wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate is the same as the shortest distance between a vertical projection of the third wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate.

[0084] Preferably, at the first light-transmitting opening of the third sub-pixel, the vertical projection of the second wiring on the substrate and the vertical projection of the third wiring on the substrate are symmetrically arranged about the central axis of the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate.

[0085] Optionally, the display panel further includes a first electrode and an isolation structure, the first electrode is located on a side of the pixel defining layer close to the substrate, and the first light-transmitting opening exposes the first electrode;

[0086] The isolation structure is located on a side of the pixel defining layer away from the substrate, and the isolation structure is provided with a second light-transmitting opening, wherein the second light-transmitting opening exposes the first light-transmitting opening and at least a portion of the pixel defining layer;

[0087] Optionally, the display panel further includes a light-emitting functional layer and a second electrode, the light-emitting functional layer is located on a side of the first electrode away from the substrate, the second electrode is located on a side of the light-emitting functional layer away from the substrate, and the second electrode is located in the first light-transmitting opening and the second light-transmitting opening;

[0088] Optionally, the second electrode contacts at least a portion of the isolation structure.

[0089] According to another aspect of the present invention, there is provided a display panel, comprising:

[0090] substrate;

[0091] an isolation structure located on one side of the substrate, the isolation structure comprising second light-transmitting openings, the second light-transmitting openings being arranged in a one-to-one correspondence with the pixel units;

[0092] a conductive layer disposed between the substrate and the isolation structure;

[0093] In which, the conductive layer includes a first trace and a second trace, the vertical projection of the first trace on the substrate is located on the central axis of the vertical projection of at least part of the first light-transmitting opening on the substrate, and / or the vertical projection of the first trace on the substrate and the vertical projection of the second trace on the substrate are located on both sides of the central axis of the vertical projection of at least part of the first light-transmitting opening on the substrate.

[0094] Optionally, the first trace includes a main portion and a branch portion, the branch portion includes a first connecting sub-portion and a second connecting sub-portion, the second connecting sub-portion is connected to the main portion via the first connecting sub-portion, the main portion and the second connecting sub-portion extend along a first direction, the first connecting sub-portion extends along a second direction, the first direction and the second direction intersect and are both perpendicular to the thickness direction of the substrate;

[0095] In which, the vertical projection of the main body on the substrate overlaps with the central area of ​​the vertical projection of part of the first light-transmitting opening on the substrate, and the vertical projection of the second connecting sub-portion on the substrate overlaps with the edge area of ​​the vertical projection of part of the first light-transmitting opening on the substrate; or, the vertical projection of the second connecting sub-portion on the substrate overlaps with the central area of ​​the vertical projection of part of the first light-transmitting opening on the substrate, and the vertical projection of the main body on the substrate overlaps with the edge area of ​​the vertical projection of part of the first light-transmitting opening on the substrate.

[0096] Optionally, the pixel unit includes a first sub-pixel and a second sub-pixel, and the first sub-pixel and the second sub-pixel emit different colors;

[0097] The vertical projection of the first wiring on the substrate is located on the central axis of the vertical projection of the first light-transmitting opening of the first sub-pixel on the substrate. At the first light-transmitting opening of the second sub-pixel, the vertical projection of the second wiring on the substrate and the vertical projection of the first wiring on the substrate are located on both sides of the central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate.

[0098] Preferably, a vertical projection of the first wiring on the substrate and a vertical projection of the second wiring on the substrate respectively overlap with the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate on both sides of a central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate, and have the same overlapping area;

[0099] Preferably, the shortest distance between a vertical projection of the first wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate is the same as the shortest distance between a vertical projection of the second wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate.

[0100] Preferably, the first routing line and the second routing line are arranged on the same layer;

[0101] Preferably, the pixel unit further includes a third sub-pixel, and a vertical projection of the first wiring on the substrate does not overlap with a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate;

[0102] Preferably, the conductive layer further includes a third wiring, wherein a vertical projection of the third wiring on the substrate and a vertical projection of the second wiring on the substrate are located on both sides of a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate;

[0103] Preferably, a vertical projection of the second wiring on the substrate and a vertical projection of the third wiring on the substrate respectively have the same overlapping area with the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate, on both sides of a central axis of the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate;

[0104] Preferably, the shortest distance between a vertical projection of the second wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate is the same as the shortest distance between a vertical projection of the third wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate.

[0105] Preferably, at the first light-transmitting opening of the third sub-pixel, the vertical projection of the second wiring on the substrate and the vertical projection of the third wiring on the substrate are symmetrically arranged about the central axis of the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate.

[0106] According to another aspect of the present invention, a display device is provided. The display device includes the display panel provided by any embodiment of the present invention.

[0107] The technical solution provided by the embodiment of the present invention is to set the first wiring in the conductive layer so that, within at least a portion of the first light-transmitting opening, the vertical projection of the first wiring on the substrate and the overlapping portion of the vertical projection of the first light-transmitting opening on the substrate are different relative to the positions of the vertical projections of the respective corresponding first light-transmitting openings on the substrate, so that the first wiring has differences under different first light-transmitting openings, so that the conductive layer where the first wiring is located presents a symmetrical structure under at least a portion of the first light-transmitting opening, so as to reduce the difference in the flatness of the film layer in the pixel area, thereby improving the problem of display color deviation, and helping to improve the display effect.

[0108] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0109] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0110] Figure 1 A schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention;

[0111] Figure 2 A schematic cross-sectional structure diagram of a display panel provided by an embodiment of the present invention;

[0112] Figure 3 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention;

[0113] Figure 4 Schematic diagram of a planar structure of another display panel provided by an embodiment of the present invention

[0114] Figure 5 A schematic structural diagram of a pixel circuit provided by an embodiment of the present invention;

[0115] Figure 6 A schematic diagram of a planar structure of another display panel provided by an embodiment of the present invention;

[0116] Figure 7 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention;

[0117] Figure 8 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention;

[0118] Figure 9 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention;

[0119] Figure 10 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention;

[0120] Figure 11 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0121] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0122] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0123] As described in the background technology, the existing display panel has the problem of poor display effect. After careful study by the inventors, it was found that the reason for the above problem is that: in the display panel of the sample pixel-level packaging solution, the light-emitting functional layer of each light-emitting element can be made by photolithography. Since the fine mask is cancelled, the pixel aperture ratio can be increased by reducing the gap between the pixel definition layer (the width between adjacent pixel areas). As the pixel aperture ratio increases, there is an asymmetric phenomenon in the same film layer directly below the pixel opening, resulting in a height difference in the light-emitting functional layer when the light-emitting functional layer is subsequently formed. The flatness of the entire pixel area (light-emitting area) is poor. Therefore, color deviation is prone to occur at different viewing angles, affecting the display effect.

[0124] In view of the above problems, an embodiment of the present invention provides a display panel to solve the problem of display color shift. Figure 1 A schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention is shown. Figure 2 A schematic cross-sectional view of a display panel according to an embodiment of the present invention is shown in FIG. Figure 1 The cross-sectional structure of the display panel shown is obtained along the cross-sectional line AA'. Figure 3 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention, specifically Figure 1 The cross-sectional structure of the display panel shown is obtained along the cross-sectional line BB', referring to Figure 1-Figure 3 , the display panel provided in this embodiment includes:

[0125] Base 10;

[0126] The pixel defining layer 20 is located on one side of the substrate 10 . The pixel defining layer 20 includes a plurality of first light-transmitting openings 100 that define pixel units.

[0127] A multi-layer conductive layer disposed between the substrate 10 and the pixel defining layer 20;

[0128] The conductive layer includes a first trace 31. Within at least a portion of the first light-transmitting opening 100, a vertical projection of the first trace 31 on the substrate 10 overlaps with a vertical projection of the first light-transmitting opening 100 on the substrate 10 at a different location. The overlapping location refers to the relative position of the overlapping portion of the first trace 31 and the vertical projection of the corresponding first light-transmitting opening on the substrate 10 and the vertical projection of the corresponding first light-transmitting opening 100 on the substrate 10.

[0129] Specifically, the substrate 10 can be a rigid substrate, such as a glass substrate, or a flexible substrate, such as a polyimide (PI) substrate. A pixel circuit array is provided on the substrate 10, and the pixel circuit is used to drive the light-emitting elements for display.

[0130] A multilayer conductive layer is formed on a substrate 10, and the multilayer conductive layer is used to form different circuits to transmit signals to the pixel circuit array. A pixel definition layer 20 is formed on the side of the multilayer conductive layer away from the substrate 10. The pixel definition layer 20 includes a plurality of first light-transmitting openings 100 that define pixel units. Each first light-transmitting opening 100 corresponds to a pixel area, wherein the pixel unit includes different types of sub-pixels, and each sub-pixel corresponds to a first light-transmitting opening 100. For example, the first light-transmitting openings 100 include two types of sub-pixels: a first light-transmitting opening 111 for the first sub-pixel and a first light-transmitting opening 112 for the second sub-pixel.

[0131] The conductive layer includes a first trace 31, which can be used to transmit voltage to the pixel area. In the case of the original pixel aperture ratio, the first trace 31 may not exist under each first light-transmitting opening 100, and the conductive layer where the first trace 31 is located will not affect the flatness of the pixel area corresponding to the first light-transmitting opening 100. However, as the pixel aperture ratio gradually increases, the area where the first light-transmitting opening 100 is located includes the area where the original first trace 31 is located. The appearance of the first trace 31 causes a height difference in the pixel area corresponding to the first light-transmitting opening 100, making the light-emitting functional layer uneven during the subsequent vapor deposition. During the display process, especially under wide-viewing angle display, color shift is likely to occur.

[0132] In this embodiment, the routing of the first trace 31 is optimized. Within at least a portion of the first light-transmitting opening 100, the overlapped portion of the vertical projection of the first trace 31 on the substrate 10 and the vertical projection of the first light-transmitting opening 100 on the substrate 10 are located at different positions relative to the vertical projections of the corresponding first light-transmitting openings 100 on the substrate 10. For example, the overlapped portion of the vertical projection of the first trace 31 on the substrate 10 with the vertical projection of the first light-transmitting opening 111 of the first sub-pixel is located at the center of the first light-transmitting opening 111 of the first sub-pixel, while the overlapped portion of the vertical projection of the first trace 31 on the substrate 10 with the vertical projection of the first light-transmitting opening 112 of the second sub-pixel is located at an edge of the first light-transmitting opening 112 of the second sub-pixel. The vertical projection of the first light-transmitting opening 100 on the substrate 10 refers to the vertical projection of the region on the substrate 10 where the first light-transmitting opening 100 is located. Typically, multiple pixel cells are arranged in an array on the substrate 10, and along the extension direction of the first trace 31 (e.g., the X direction), the first trace 31 may cross at least a portion of the pixel region at different positions. For example, Figure 2 As shown, at the position of the cutting line AA', there is a through first wiring 31 under the first light-transmitting opening 111 of the first sub-pixel, but there is no through first wiring 31 under the first light-transmitting opening 112 of the second sub-pixel. Figure 3 As shown, at the location of cutting line BB', there is no first trace 31 below the first light-transmitting opening 111 of the first sub-pixel, while there is a through-going first trace 31 below the first light-transmitting opening 112 of the second sub-pixel. In other words, the first trace 31 is no longer a straight line, but is instead differentiated within different pixel regions. This allows the conductive layer where the first trace 31 resides to have a symmetrical structure within at least some pixel regions, thereby minimizing variations in film flatness within the pixel regions. This reduces the difference in film height between the left and right halves, and / or between the top and bottom halves, of the pixel region, thereby reducing color shift at non-normal viewing angles.

[0133] The technical solution provided by the embodiment of the present invention is to set the first wiring 31 in the conductive layer so that, within at least a portion of the first light-transmitting opening 100, the vertical projection of the first wiring 31 on the substrate 10 overlaps with the vertical projection of the first light-transmitting opening 100 on the substrate 10, and the positions of the vertical projections of the corresponding first light-transmitting openings 100 on the substrate 10 are different from each other, so that the first wiring 31 has differences under different first light-transmitting openings 100, so that the first wiring 31 presents a symmetrical structure under at least a portion of the first light-transmitting opening 100, so as to reduce the difference in the flatness of the film layer in the pixel area, thereby improving the problem of display color deviation, and helping to improve the display effect.

[0134] Optionally, the first trace 31 includes a metal trace.

[0135] Continue to refer Figure 1 Optionally, the first trace 31 includes a main body 301 and a branch portion, the branch portion includes a first connecting sub-portion 3021 and a second connecting sub-portion 3022, the second connecting sub-portion 3022 is connected to the main body 301 via the first connecting sub-portion 3021, the main body 301 and the second connecting sub-portion 3022 extend along the first direction X, and the first connecting sub-portion 3021 extends along the second direction Y. The first direction X and the second direction Y intersect and are both perpendicular to the thickness direction of the substrate 10.

[0136] Specifically, the pixel unit includes multiple sub-pixels of different types. The vertical projection of the first trace 31 on the substrate 10 overlaps with the vertical projection of the first light-transmitting opening 100 corresponding to the different sub-pixels at different locations. The first light-transmitting openings 100 corresponding to different sub-pixels have different sizes. For example, the first light-transmitting opening 111 of the first sub-pixel is smaller than the first light-transmitting opening 112 of the second sub-pixel, so that no other traces in the conductive layer where the first trace 31 is located exist below the first light-transmitting opening 111 of the first sub-pixel. However, due to the larger opening size of the first light-transmitting opening 112 of the second sub-pixel, other traces in the conductive layer where the first trace 31 is located exist below the first light-transmitting opening 111. Therefore, at the first light-transmitting opening 111 of the first sub-pixel with a smaller opening size, the first trace 31 is moved in the second direction Y in the form of a branch, so that the vertical projection of the second connecting sub-portion 3022 on the substrate 10 overlaps with the central region of a portion of the vertical projection of the first light-transmitting opening 100 on the substrate 10. The routing of the main portion 301 of the first trace 31 can remain unchanged, with the vertical projection of the main portion 301 on the substrate 10 overlapping with the edge region of a portion of the vertical projection of the first light-transmitting opening 100 on the substrate 10. The central region can be the region along the central axis of the first light-transmitting opening 100 along the first direction, that is, the second connecting sub-portion 3022 and the central axis of the first light-transmitting opening 100 along the first direction are located on the same straight line. The edge regions can be opposite sides of the central region, for example, the vertical projection of the first trace 31 on the substrate 10 is located on one side of the central axis of the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10. As a result, the second connecting sub-portion 3022 of the first trace 31 is located below the center area of ​​the first light-transmitting opening 111 of the first sub-pixel. The first light-transmitting opening 111 of the first sub-pixel is symmetrical about the second connecting sub-portion 3022, and the step difference during the subsequent formation of the light-emitting functional layer is also symmetrical, thereby reducing the display color shift problem. The main portion 301 of the first trace 31 is located below the edge area of ​​the first light-transmitting opening 112 of the second sub-pixel. This main portion 301 can be arranged symmetrically with the other trace structures in the conductive layer in which it is located, similarly reducing the display color shift problem.

[0137] Of course, in other embodiments, if there is only the first routing line 31 below the first light-transmitting opening 112 of the second sub-pixel, the first routing line 31 can also be wired in the central area of ​​the first light-transmitting opening 112 of the second sub-pixel so that the first light-transmitting opening 112 of the second sub-pixel is symmetrical about the first routing line 31.

[0138] Alternatively, in another optional implementation provided by this embodiment, the vertical projection of the main body portion 301 on the substrate 10 may overlap with the center area of ​​the vertical projection of a portion of the first light-transmitting opening 100 on the substrate 10; while the routing of the second connecting sub-portion 3022 of the first wiring 31 may remain unchanged, with the vertical projection of the second connecting sub-portion 3022 on the substrate 10 overlapping with the edge area of ​​the vertical projection of a portion of the first light-transmitting opening 100 on the substrate 10. This arrangement has the same beneficial effects as the technical solution provided by the above embodiment.

[0139] Figure 4 A schematic diagram of a planar structure of another display panel provided by an embodiment of the present invention, referring to Figure 4 Based on the above embodiments, optionally, the pixel unit includes a first sub-pixel and a second sub-pixel, and the first sub-pixel and the second sub-pixel emit different colors. For example, the first sub-pixel can be a red sub-pixel and the second sub-pixel can be a blue sub-pixel. The first sub-pixel and the second sub-pixel are arranged in an array on the substrate 10. In the extension direction of the first trace 31 (the first direction X), the first sub-pixels and the second sub-pixels are alternately arranged. The vertical projection of the first trace 31 on the substrate 10 overlaps with the center area of ​​the vertical projection of the first light-transmitting opening 111 of the first sub-pixel on the substrate 10, and the vertical projection of the first trace 31 on the substrate 10 overlaps with the edge area of ​​the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10.

[0140] Optionally, the pixel unit further includes a third sub-pixel, which may be a green sub-pixel. The third sub-pixels are arranged in a single row, and no first trace 31 exists below the first light-transmitting opening 113 of the third sub-pixels. That is, a vertical projection of the first trace 31 on the substrate 10 does not overlap with a vertical projection of the first light-transmitting opening 113 of the third sub-pixels on the substrate 10.

[0141] It should be noted that the arrangement of the above-mentioned first sub-pixel, second sub-pixel and third sub-pixel is only an exemplary structure provided in this embodiment. In other embodiments, there may also be a first wiring 31 under the third sub-pixel. In this case, wiring can be performed in the above-mentioned manner so that the circuit of the conductive layer where the first wiring 31 is located under the first light-transmitting opening 113 of the third sub-pixel is a symmetrical structure.

[0142] In this embodiment, the opening size of the first light-transmitting opening 112 of the second sub-pixel is larger than the opening size of the first light-transmitting opening 111 of the first sub-pixel, and the opening size of the first light-transmitting opening 111 of the first sub-pixel is larger than the opening size of the first light-transmitting opening 113 of the third sub-pixel. Specifically, the opening size may be the opening area of ​​the sub-pixel.

[0143] Continue to refer Figure 4 The conductive layer also includes a second routing line 32, which is arranged on the same layer as the first routing line 31. The vertical projection of the second routing line 32 on the substrate 10 overlaps with the edge area of ​​the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10, and the vertical projection of the second routing line 32 on the substrate 10 and the vertical projection of the first routing line 31 on the substrate 10 are located on both sides of the central axis of the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10.

[0144] Specifically, the second routing line 32 extends in the same direction as the first routing line 31. Below the edge region of the first light-transmitting opening 112 of the second sub-pixel, the main portion 301 of the first routing line 31 and the second routing line 32 are located on either side of the central axis of the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10. For example, the vertical projection of the main portion 301 of the first routing line 31 on the substrate 10 and the vertical projection of the second routing line 32 on the substrate 10 are symmetrically arranged along the central axis of the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10 along the X-direction, thereby reducing the difference in film flatness below the first light-transmitting opening 112 of the second sub-pixel and thereby reducing color shift. Here, the second routing line 32 is a different type of routing line from the first routing line 31, and the two transmit different voltage signals. The central axis refers to a straight line that can divide the first light-transmitting opening 100 into two parts of equal area along a certain direction.

[0145] Optionally, the vertical projection of the first routing line 31 on the substrate 10 and the vertical projection of the second routing line 32 on the substrate 10 respectively overlap with the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10 on both sides of the central axis of the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10, respectively, and have the same area. That is, the overlapping area of ​​the vertical projection of the first routing line 31 on the substrate 10 and the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10 is the same as the overlapping area of ​​the vertical projection of the second routing line 32 on the substrate 10 and the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10. This ensures that the height difference between the first routing line 31 and the second routing line 32 below the first light-transmitting opening 112 of the second sub-pixel is similar, thereby reducing the difference in film flatness below the first light-transmitting opening 112 of the second sub-pixel and reducing color shift.

[0146] Optionally, the shortest distance between the vertical projection of the first routing line 31 on the substrate 10 and the central axis of the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10 is the same as the shortest distance between the vertical projection of the second routing line 32 on the substrate 10 and the central axis of the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10. During routing, the first routing line 31 and the second routing line 32 are both routed in straight lines. By making their respective shortest distances to the central axis of the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10 equal, the vertical projection of the first routing line 31 on the substrate 10 and the vertical projection of the second routing line 32 on the substrate 10 can be symmetrical about the central axis of the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10 along the X direction, thereby reducing the difference in the flatness of the film layer below the first light-transmitting opening 112 of the second sub-pixel and reducing color shift.

[0147] It should be noted that the areas and distances mentioned in this embodiment are not strictly identical, and can be considered identical as long as the error is within the allowable range. For example, if the two distances being compared are defined as a first distance and a second distance, then the first distance is equal to (0.9-1.1) × the second distance, and in this case the distances are considered identical; or if the two areas being compared are defined as a first area and a second area, then the first area is equal to (0.9-1.1) × the second area, and in this case the areas are considered identical.

[0148] Optionally, the conductive layer further includes a third routing line 33, wherein the vertical projection of the third routing line 33 on the substrate 10 and the vertical projection of the second routing line 32 on the substrate 10 are located on either side of the central axis of the vertical projection of the first light-transmitting opening 113 of the third sub-pixel on the substrate 10. The third routing line 33 is disposed on the same layer as the first routing line 31 and the second routing line 32, and the third routing line 33 and the second routing line 32 extend in the same direction. The third routing line 33 can be an in-plane fan-out routing line that can be used for in-plane signal transmission. Below the first light-transmitting opening 113 of the third sub-pixel, the vertical projection of the third routing line 33 on the substrate 10 and the vertical projection of the second routing line 32 on the substrate 10 are symmetrically arranged about the central axis of the vertical projection of the first light-transmitting opening 113 of the third sub-pixel on the substrate 10.

[0149] Optionally, the vertical projection of the second routing line 32 on the substrate 10 and the vertical projection of the third routing line 33 on the substrate 10 respectively overlap with the vertical projection of the first light-transmitting opening 113 of the third sub-pixel on the substrate 10 on both sides of the central axis of the vertical projection of the first light-transmitting opening 113 of the third sub-pixel on the substrate 10. The shortest distance between the vertical projection of the second routing line 32 on the substrate 10 and the central axis of the vertical projection of the first light-transmitting opening 113 of the third sub-pixel on the substrate 10 is the same as the shortest distance between the vertical projection of the third routing line 33 on the substrate 10 and the central axis of the vertical projection of the first light-transmitting opening 113 of the third sub-pixel on the substrate 10. For details, please refer to the relevant description of the first routing line 31 and the second routing line 32 in the above embodiment, and will not be repeated here.

[0150] In this embodiment, the vertical projection of the first routing line 31 on the substrate 10 overlaps with the vertical projection of the first light-transmitting opening 100 corresponding to the same type of sub-pixel on the substrate 10 at the same location. That is, across the entire substrate 10, the overlapping portion of the vertical projection of the first routing line 31 on the substrate 10 with the first light-transmitting opening 111 of each first sub-pixel is located at the center of the first light-transmitting opening 100 of the first sub-pixel; and the overlapping portion of the vertical projection of the first routing line 31 on the substrate 10 with the first light-transmitting opening 112 of each second sub-pixel is located at the edge of the first light-transmitting opening 112 of the second sub-pixel. Similarly, the vertical projections of the second routing line 32 on the substrate 10 overlap with the first light-transmitting opening 112 of each second sub-pixel and the first light-transmitting opening 113 of each third sub-pixel at the same location. The vertical projections of the third routing line 33 on the substrate 10 overlap with the first light-transmitting opening 113 of each third sub-pixel also overlap at the same location. Therefore, on the entire panel, the conductive layer where the first wiring 31 under all pixel areas is located is symmetrically arranged about the corresponding first light-transmitting opening 100, and the height difference of the film layer under the first light-transmitting opening 100 of the same type of sub-pixel remains consistent. During the display process, especially when displaying at a wide viewing angle, the brightness at the same viewing angle can be guaranteed to be consistent, thereby reducing the color deviation phenomenon.

[0151] Optionally, at least one pixel circuit is further formed on the substrate 10 , and the pixel circuit is used to generate a driving current to drive a light-emitting element connected to the pixel circuit to emit light, and the light-emitting element is located in the area where the first light-transmitting opening 100 is located. Figure 5 A schematic diagram of a pixel circuit according to an embodiment of the present invention is provided. Figure 4 and Figure 5The pixel circuit is formed by at least a thin film transistor, and the thin film transistor includes at least a driving transistor Q1 and a first initialization transistor Q2; the first initialization transistor Q2 is connected between the first wiring 31 and the light-emitting element, and the first initialization transistor Q2 is used to transmit the first initialization voltage Vref1 on the first wiring 31 to the light-emitting element; wherein the gate of the first initialization transistor Q2 is connected to the first scan line to respond to the first scan signal S1 output by the first scan line, and the light-emitting element can be an OLED device.

[0152] The driving transistor Q1 is connected to the second wiring 32 , and is used for transmitting the power supply voltage VDD on the second wiring 32 to the light emitting element to drive the light emitting element to emit light.

[0153] Among them, the first wiring 31 for transmitting the first initialization voltage Vref1 and the second wiring 32 for transmitting the power supply voltage VDD are both located in the conductive layer on the side of the light-emitting element close to the substrate 10, and are relatively close to the light-emitting element. Therefore, the flatness of the conductive layer below each first light-transmitting opening 100 has a significant impact on the subsequent fabrication of the light-emitting element. In this embodiment, by differentially designing the first wiring 31 below different first light-transmitting openings 100, the conductive layer where the first wiring 31 is located below each first light-transmitting opening 100 is symmetrically arranged, thereby reducing the difference in film layer height in the pixel area corresponding to the first light-transmitting opening 100, which is conducive to improving display color shift.

[0154] Continue to refer Figure 5 The pixel circuit provided in this embodiment further includes a data writing transistor Q3 and a compensation transistor Q4. The data writing transistor Q3 is connected between the data line Data and the first electrode of the driving transistor Q1. The compensation transistor Q4 is connected between the second electrode and the gate of the driving transistor Q1. The gate of the compensation transistor Q4 and the gate of the data writing transistor Q3 are both connected to the second scan line to respond to the second scan signal S2 transmitted on the second scan line.

[0155] Optionally, the pixel circuit further includes a first light-emission control transistor Q5 and a second light-emission control transistor Q6. The first light-emission control transistor Q5 is connected between the second wiring 32 and the first electrode of the driving transistor Q1, and the second light-emission control transistor Q6 is connected between the second electrode of the driving transistor Q1 and the light-emitting element. The gates of the first light-emission control transistor Q5 and the second light-emission control transistor Q6 are both connected to the light-emission control signal line to respond to the light-emission control signal EM transmitted on the light-emission control signal line. The pixel circuit further includes a second initialization transistor Q7 and a storage capacitor C1. The second initialization transistor Q7 is connected to the gate of the driving transistor Q1 and is configured to transmit a second initialization voltage Vref2 to the gate of the driving transistor Q1 in response to a third scan signal on a third scan signal line to which its gate is connected. The storage capacitor C1 is configured to store the gate voltage of the driving transistor Q1.

[0156] Figure 6 A schematic diagram of a planar structure of another display panel provided by an embodiment of the present invention, referring to Figure 4 and Figure 6 Based on the above embodiments, the conductive layer optionally further includes a fourth trace 34, which is disposed in a different layer from the first trace 31. The fourth trace 34 extends along the second direction Y and is disposed on both sides (left and right) of some pixel units. The portions where the vertical projections of the fourth trace 34 on the substrate 10 overlap with the vertical projections of the first light-transmitting openings 100 corresponding to some pixel units (e.g., the first light-transmitting opening 112 of the second sub-pixel) on the substrate 10 are symmetrically disposed about the vertical projections of the corresponding first light-transmitting openings 100 on the substrate 10, that is, symmetrically disposed about the vertical projections of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10 along the central axis of the second direction Y. The vertical projection of the fourth trace 34 on the substrate 10 overlaps the vertical projections of the first light-transmitting openings 100 corresponding to the remaining pixel units. For example, the vertical projection of the fourth trace 34 on the substrate 10 overlaps the vertical projection of the first light-transmitting opening 113 of the third sub-pixel on the substrate 10.

[0157] Optionally, the vertical projections of the fourth routing lines 34 on either side of the central axis of the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10 have the same overlapping area as the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10. The vertical projections of the fourth routing lines 34 on either side of the central axis of the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10 have the same shortest distance as the central axis of the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate. For details, please refer to the relevant description of the first routing lines 31 and the second routing lines 32 in the above embodiment, and will not be repeated here.

[0158] Specifically, the fourth routing line 34 may be a power routing line for transmitting a power supply voltage VDD. The second routing line 32 is a power routing line extending along a first direction X, and the fourth routing line 34 is a power routing line extending along a second direction Y. The second routing line 32 and the fourth routing line 34 are located on different conductive layers, and the fourth routing line 34 is located on the side of the second routing line 32 away from the substrate 10. There is no fourth routing line 34 below the first light-transmitting opening 111 corresponding to the first sub-pixel. Below the first light-transmitting opening 112 corresponding to the second sub-pixel, the fourth routing lines 34 are located on opposite sides thereof and are symmetrical about the central axis of the first light-transmitting opening 112 corresponding to the second sub-pixel. Below the first light-transmitting opening 113 corresponding to the third sub-pixel, the fourth routing line 34 completely covers the area where the first light-transmitting opening 113 corresponding to the third sub-pixel is located. That is, the vertical projection of the fourth routing line 34 on the substrate 10 covers the vertical projection of the first light-transmitting opening 113 corresponding to the third sub-pixel on the substrate 10.

[0159] Continue to refer Figure 6 The conductive layer where the fourth line 34 is located also includes a fifth line 35 and a sixth line 36, wherein the fifth line 35 can be Figure 5 , the sixth routing line 36 can be an in-plane fan-out routing line. The fifth routing line 35 and the sixth routing line 36 both extend along the second direction Y, and the sixth routing line 36 is located between two adjacent fifth routing lines 35, below the first light-transmitting opening 111 corresponding to the first sub-pixel and the first light-transmitting opening 112 corresponding to the second sub-pixel. The vertical projection of the fifth routing line 35 on the substrate 10 is symmetrical about the central axis of the vertical projection of the first light-transmitting opening 111 corresponding to the first sub-pixel on the substrate 10. The vertical projection of the fifth routing line 35 on the substrate 10 is located on both sides of the central axis of the vertical projection of the first light-transmitting opening 112 corresponding to the second sub-pixel on the substrate 10. For example, the vertical projection of the fifth routing line 35 on the substrate 10 is symmetrical about the central axis of the vertical projection of the first light-transmitting opening 112 corresponding to the second sub-pixel on the substrate 10. Furthermore, since the sixth trace 36 is located on the central axis of the first light-transmitting opening 112 corresponding to the second sub-pixel, the central axis of the first light-transmitting opening 111 corresponding to the first sub-pixel and the central axis of the first light-transmitting opening 112 corresponding to the second sub-pixel in the same column of pixel units coincide with each other. In this embodiment, the film layer height difference between the left and right halves (or the upper and lower halves) of the pixel area corresponding to the first light-transmitting opening 100 of each sub-pixel is relatively small, which helps to improve the display color shift.

[0160] Optionally, each conductive layer may be a metal layer, and each trace may be a metal trace.

[0161] Optionally, the vertical projections of the fifth traces 35 on either side of the central axis of the vertical projection of the corresponding first light-transmitting opening 100 on the substrate 10 on the substrate 10 have the same overlapping area as the vertical projection of the corresponding first light-transmitting opening 100 on the substrate 10; and the vertical projections of the fifth traces 35 on either side of the central axis of the vertical projection of the corresponding first light-transmitting opening 100 on the substrate 10 have the same shortest distance as the central axis of the vertical projection of the corresponding first light-transmitting opening 100 on the substrate 10. For details, please refer to the relevant description of the first trace 31 and the second trace 32 in the above embodiment, and will not be repeated here.

[0162] Figure 7 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention, specifically Figure 1 The cross-sectional structure of the display panel shown is obtained along the cross-sectional line AA', referring to Figure 1-Figure 7 The display panel includes a substrate 10 and a buffer layer 11 located on one side of the substrate 10. The buffer layer 11 can be formed of an inorganic material and plays a protective and buffering role. A first active layer 101 and a first gate electrode 102 are sequentially arranged on the side of the buffer layer 11 away from the substrate 10. A first gate insulating layer 12 is arranged between the first active layer 101 and the first gate electrode 102. The first gate insulating layer 12 covers the first active layer 101 and is in contact with the buffer layer 11, and is used to insulate the first active layer 101 from the first gate electrode 102. A capacitor dielectric layer 13 is arranged on the side of the first gate electrode 102 away from the substrate 10. The capacitor dielectric layer 13 is used to insulate the upper plate and the lower plate of the storage capacitor (the upper plate and the lower plate of the capacitor are not shown in the figure). The lower plate of the capacitor can be arranged on the same layer as the first gate electrode 102. A second interlayer insulating layer 16 is arranged on the side of the capacitor dielectric layer 13 away from the substrate 10. The first source electrode 103 and the first drain electrode 104 are formed on the side of the second interlayer insulating layer 16 away from the substrate 10 and are connected to the first active layer 101 through vias. A first planarization layer 17 covers the first source electrode 103 and the first drain electrode 104. A first transition portion 151 and a second transition portion 152 are provided on the side of the first planarization layer 17 away from the substrate 10. The first transition portion 151 and the second transition portion 152 are provided with a second planarization layer 30. The first transition portion 151 and the second transition portion 152 are used to transition the connection between the conductive layers, avoiding the need for deep holes in the film structure. A third planarization layer 19 is also provided on the side of the second transition portion 152 away from the substrate 10.

[0163] The first active layer 101, the first gate electrode 102, the first source electrode 103, and the first drain electrode 104 together form a pixel circuit layer. In this embodiment, the pixel circuit layer further includes a second gate electrode 121, a second active layer 122, and a third gate electrode 123. The second active layer 122 is different from the first active layer 101 in that it is made of a metal oxide, such as indium gallium zinc oxide. The first active layer 111 is made of low-temperature polysilicon.

[0164] The second gate 121 may be a bottom gate and is located on the side of the capacitor dielectric layer 13 away from the substrate 10. The second active layer 122 is located on the side of the first interlayer insulating layer 14 away from the substrate 10, and the second gate insulating layer 15 covers the second active layer 122. The third gate 123 is located on the side of the second gate insulating layer 15 away from the substrate 10, and the second interlayer insulating layer 16 covers the third gate 123. The third gate 123 may be a top gate.

[0165] The multilayer conductive layer includes a first conductive layer, a second conductive layer, a third conductive layer, a fourth conductive layer, and a fifth conductive layer stacked in sequence. The first conductive layer, the second conductive layer, and the third conductive layer are used to form a transistor in a pixel circuit. Optionally, the first gate 101 is located in the first conductive layer, the second gate 121 is located in the second conductive layer, the first source electrode 103 and the first drain electrode 104 are located in the third conductive layer, the first transition portion 151 is located in the fourth conductive layer, and the second transition portion 152 is located in the fifth conductive layer.

[0166] Combine Figure 6 and Figure 7 In this embodiment, the fourth conductive layer further includes a first wiring 31, a second wiring 32, and a third wiring 33. Below the first light-transmitting opening 111 of the first sub-pixel, the vertical projection of the first wiring 31 on the substrate 10 overlaps with the center area of ​​the vertical projection of the first light-transmitting opening 111 of the first sub-pixel on the substrate 10, the vertical projection of the first wiring 31 on the substrate 10 overlaps with the edge area of ​​the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10, and the vertical projection of the second wiring 32 on the substrate 10 overlaps with the vertical projection of the first wiring 31 on the substrate 10. The image is symmetrical about the central axis of the vertical projection of the first light-transmitting opening 112 of the second sub-pixel on the substrate 10, and the vertical projection of the first trace 31 on the substrate 10 is located on the central axis of the vertical projection of the first light-transmitting opening 111 of the first sub-pixel on the substrate 10, thereby reducing the difference in film flatness between the left half and the right half (or the upper half and the lower half) in the pixel area, so that the difference in film height caused by the unevenness of the fourth conductive layer between the left half and the right half, and / or the upper half and the lower half of the pixel area is small, thereby reducing the color shift under non-normal viewing angles.

[0167] The fifth conductive layer also includes a fourth routing 34, a fifth routing 35 and a sixth routing 36, which are below the first light-transmitting opening 111 corresponding to the first sub-pixel and the first light-transmitting opening 112 corresponding to the second sub-pixel. The vertical projection of the fifth routing 35 on the substrate 10 is symmetrical about the central axis of the vertical projection of the first light-transmitting opening 111 corresponding to the first sub-pixel on the substrate 10, and the vertical projection of the fifth routing 35 on the substrate 10 is symmetrical about the central axis of the vertical projection of the first light-transmitting opening 112 corresponding to the second sub-pixel on the substrate 10. The fourth routing 34 is symmetrically arranged below the first light-transmitting opening 112 corresponding to the second sub-pixel about the central axis of the vertical projection of the first light-transmitting opening 112 corresponding to the second sub-pixel on the substrate 10. The vertical projection of the sixth routing 36 on the substrate 10 is located on the central axis of the vertical projection of the first light-transmitting opening 111 corresponding to the first sub-pixel on the substrate 10 and the vertical projection of the first light-transmitting opening 112 corresponding to the second sub-pixel on the substrate 10. Therefore, the difference in film height between the left and right halves of the pixel region corresponding to the first light-transmitting opening 100 of each sub-pixel is relatively small, which is beneficial to improving display color shift.

[0168] Continue to refer Figure 7 Optionally, the display panel further includes a first electrode 41 and an isolation structure 50, the first electrode 41 is located on the side of the pixel defining layer 20 close to the substrate 10, and the first light-transmitting opening exposes the first electrode 41; the isolation structure 50 is located on the side of the pixel defining layer 20 away from the substrate 10, and the isolation structure 50 is provided with a second light-transmitting opening, and the second light-transmitting opening exposes the first light-transmitting opening and at least part of the pixel defining layer 20. Patents PCT / CN2023 / 134518, 202310771124.9, 202311499823.9, 202310731471.9, 202311686416.9, 202310707183.X, 202311764506.5, 202310479495.X, 202310771071.0, and 202310759370.2 record relevant contents of the isolation structure for reference.

[0169] Region aa is the region where the first light-transmitting opening is located, and region bb is the region where the second light-transmitting opening is located. The second light-transmitting opening can be understood as the opening enclosed by the contact surface of the isolation structure 50 and the pixel defining layer 20. Optionally, the second light-transmitting opening can be connected to the first light-transmitting opening, exposing the first light-transmitting opening and at least a portion of the pixel defining layer 40, and the first light-transmitting opening is located within the second light-transmitting opening.

[0170] Figure 8 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention, referring to Figure 8On the basis of the above embodiment, the display panel further includes a light-emitting functional layer 42 and a second electrode 43. The light-emitting functional layer 42 is located on the side of the first electrode 41 away from the substrate 10, and the second electrode 43 is located on the side of the light-emitting functional layer 42 away from the substrate 10. The second electrode 43 is located in the first light-transmitting opening and the second light-transmitting opening; the second electrode 43 contacts at least part of the isolation structure 50.

[0171] The stacked first electrode 41, light-emitting functional layer 42, and second electrode 43 together form a light-emitting element. Different colored light-emitting elements correspond to different light-emitting functional layers 42. The second electrode 43 can be a cathode, and the first electrode 41 can be an anode. The second electrodes 43 are isolated by an isolation structure 50. Optionally, the isolation structures 50 corresponding to light-emitting elements of different colors can be spaced and insulated, allowing the second electrodes 43 corresponding to the light-emitting elements of different colors to be spaced and insulated, enabling individual control of each second electrode 43.

[0172] Optionally, the isolation structure 50 includes a conductive material, and the power supply voltage (the second power supply voltage VSS) may be transmitted to the second electrode 43 through the isolation structure 50 .

[0173] Optionally, whether adjacent isolation structures 50 are insulated can be adjusted according to the arrangement of the pixel units. In one implementation provided in this embodiment, at least in the same row of pixel units, the isolation structures 50 corresponding to adjacent pixel units are insulated from each other; in the same pixel unit, the second electrode 43 is in contact with the isolation structure 50. In the same column of pixel circuits, the isolation structures 50 corresponding to adjacent pixel units are electrically connected, such as if there is only one isolation structure 50 between adjacent pixel units in the same column, and the second electrodes 43 of the two pixel units are both connected to the isolation structure 50. Alternatively, in the same column of pixel circuits, the isolation structures 50 corresponding to adjacent pixel units are insulated from each other, and the connection method is the same as the connection method of the isolation structures 50 corresponding to the row of pixel units.

[0174] Optionally, the isolation structure 50 is further provided with an isolation opening exposing the pixel defining layer, and the isolation opening is spaced apart from the second light-transmitting opening. The cc region is the region where the isolation opening is located. The vertical projection of the light-emitting functional layer 42 on the substrate 10 and the vertical projection of the second electrode 43 on the substrate 10 do not overlap with the vertical projection of the isolation opening on the substrate 10, and the vertical projection of the isolation opening on the substrate 10 does not overlap with the vertical projection of the first light-transmitting opening on the substrate 10. Specifically, the vertical projection of the light-emitting functional layer 42 on the substrate 10 and the vertical projection of the second electrode 43 on the substrate do not overlap with the vertical projection of the isolation opening on the substrate 10, and the vertical projection of the isolation opening on the substrate 10 does not overlap with the vertical projection of the first light-transmitting opening on the substrate 10. That is to say, the light-emitting functional layer 42 and the second electrode 43 are not located in the isolation opening, and the isolation opening and the first light-transmitting opening are not connected to each other.

[0175] Optionally, continue to refer to Figure 7 and Figure 8 The isolation structure 50 includes a support portion 501 and a crown portion 502. The crown portion 502 is located on the side of the support portion 501 away from the substrate 10, and the vertical projection of the support portion 501 on the substrate 10 falls within the vertical projection of the crown portion 502 on the substrate 10. This allows the isolation structure 50 to isolate the light-emitting functional layers 42 of adjacent light-emitting elements, thereby avoiding the problem of lateral current crosstalk. In addition, due to the presence of the eaves-shaped isolation structure 50, the light-emitting functional layers 42 of the light-emitting elements can be individually prepared during the film evaporation process without the aid of a precision mask. The light-emitting functional layer 42 of each light-emitting element can be produced by photolithography, thus eliminating the need for a precision mask and saving production costs.

[0176] Optionally, there may be two isolation structures 50 between adjacent pixel units, and the two isolation structures 50 are insulated from each other. In other embodiments, there may be one isolation structure between adjacent pixel units, and the isolation structure 50 may be split into two to form a split structure, which can also serve to insulate the second electrodes 43 of adjacent pixel units.

[0177] Figure 9 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention, referring to Figure 9 Based on the above embodiments, optionally, the isolation structure 50 further includes a root 503, which is located on the side of the support portion 501 close to the substrate 10, and the vertical projection of the support portion 501 on the substrate 10 is located within the vertical projection of the root 503 on the substrate 10.

[0178] Specifically, the root 503 may include a conductive material, and the root 503, the support portion 501 and the crown 502 are electrically connected in sequence, and the isolation structure 50 is in the shape of an "I" as a whole, so that the second electrode 43 can cover at least part of the root 503 to achieve electrical connection between the second electrode 43, the support portion 501 and the root 503, which is conducive to increasing the basic area between the second electrode 43 and the isolation structure 50, thereby ensuring the reliability of the second power supply voltage VSS transmitted through the isolation structure 50.

[0179] Optionally, the pixel defining layer 20 may further include a recess, and the isolation structure 50 may be disposed in the recess, which is beneficial for reducing the overall thickness of the film layer.

[0180] It should be understood that in the panel manufacturing process, since the thickness of the second planarization layer 30 and the third planarization layer 19 is not sufficient to completely cover the planarization difference of the first wiring 31 in the fourth conductive layer in the pixel area, this embodiment differentiates the design of the first wiring 31 located in the fourth conductive layer under different pixel areas, so that the fourth conductive layer where the first wiring 31 is located presents a symmetrical structure under at least part of the pixel area, so as to reduce the difference in the flatness of the film layer in the pixel area, thereby improving the problem of display color deviation, which is beneficial to improving the display effect.

[0181] Optionally, in another implementation manner provided by this embodiment, the display panel includes:

[0182] Base 10;

[0183] The pixel defining layer 20 is located on one side of the substrate 10 . The pixel defining layer 20 includes a plurality of first light-transmitting openings 100 that define pixel units.

[0184] A conductive layer disposed between the substrate 10 and the pixel defining layer 20;

[0185] In which, the conductive layer includes a first trace 31 and a second trace 32 arranged in the same layer, and the vertical projection of the first trace 31 on the substrate 10 is located on the central axis of the vertical projection of at least part of the first light-transmitting opening 100 on the substrate 10, and / or, the vertical projection of the first trace 31 on the substrate 10 and the vertical projection of the second trace 32 on the substrate 10 are located on both sides of the central axis of the vertical projection of at least part of the first light-transmitting opening 100 on the substrate 10.

[0186] Among them, the technical solution provided in this embodiment can be combined with the technical solution in any of the above embodiments. Its specific working principle can refer to the relevant description in any of the above embodiments, and it has the same beneficial effects as any of the above embodiments.

[0187] Optionally, in another implementation manner provided by this embodiment, the display panel may directly define pixel units with an isolation structure, thereby removing the pixel defining layer. Figure 10 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention, referring to Figure 10 , the display panel includes:

[0188] Base 10;

[0189] The isolation structure 50 is located on one side of the substrate 10. The isolation structure 50 includes a second light-transmitting opening. The second light-transmitting opening is arranged in a one-to-one correspondence with the pixel units.

[0190] A conductive layer disposed between the substrate 10 and the isolation structure 50;

[0191] In which, the conductive layer includes a first trace 31 and a second trace 32, the vertical projection of the first trace 31 on the substrate 10 is located on the central axis of the vertical projection of at least part of the second light-transmitting opening on the substrate 10, and / or, the vertical projection of the first trace 31 on the substrate 10 and the vertical projection of the second trace 32 on the substrate 10 are located on both sides of the central axis of the vertical projection of at least part of the second light-transmitting opening on the substrate 10.

[0192] Among them, on the basis of not including the pixel defining layer, the technical solution provided in this embodiment can be combined with the technical solution in any of the above embodiments (replacing the first light-transmitting opening with the second light-transmitting opening), and its specific working principle can refer to the relevant description in any of the above embodiments, and it has the same beneficial effects as any of the above embodiments.

[0193] Optionally, an embodiment of the present invention further provides a display device, which includes the display panel provided by any embodiment of the present invention. Figure 11 A schematic diagram of a display device according to an embodiment of the present invention is provided. The display device 500 can not only Figure 11 The mobile phone shown can also be a tablet, mobile phone, watch, wearable device, or electronic device such as an in-car display, camera display, television, or computer screen. Since the display device includes the display panel provided by any embodiment of the present invention, the display device provided by the embodiment of the present invention also has the beneficial effects described in any embodiment of the present invention.

[0194] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0195] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A display panel, characterized in that: include: substrate; a pixel defining layer, located on one side of the substrate, the pixel defining layer comprising a plurality of first light-transmitting openings defining pixel units; a conductive layer disposed between the substrate and the pixel defining layer; In which, the conductive layer includes a first routing line, and the vertical projection of the first routing line on the substrate is different from the overlapping position of the vertical projection of at least part of the first light-transmitting opening on the substrate; the overlapping position is the relative position of the overlapping part of the vertical projection of the first routing line and the first light-transmitting opening on the substrate and the corresponding vertical projection of the first light-transmitting opening on the substrate.

2. The display panel according to claim 1, wherein: The first trace includes a main portion and a branch portion, the branch portion includes a first connecting sub-portion and a second connecting sub-portion, the second connecting sub-portion is connected to the main portion via the first connecting sub-portion, the main portion and the second connecting sub-portion extend along a first direction, the first connecting sub-portion extends along a second direction, the first direction and the second direction intersect and are both perpendicular to the thickness direction of the substrate; The vertical projection of the second connecting sub-portion on the substrate overlaps with a central area of ​​a portion of the vertical projection of the first light-transmitting opening on the substrate, and the vertical projection of the main portion on the substrate overlaps with an edge area of ​​a portion of the vertical projection of the first light-transmitting opening on the substrate; Preferably, the first trace comprises a metal trace.

3. The display panel according to claim 1, wherein: The first trace includes a main portion and a branch portion, the branch portion includes a first connecting sub-portion and a second connecting sub-portion, the second connecting sub-portion is connected to the main portion via the first connecting sub-portion, the main portion and the second connecting sub-portion extend along a first direction, the first connecting sub-portion extends along a second direction, the first direction and the second direction intersect and are both perpendicular to the thickness direction of the substrate; The vertical projection of the main body on the substrate overlaps with a central area of ​​a portion of the vertical projection of the first light-transmitting opening on the substrate, and the vertical projection of the second connecting sub-portion on the substrate overlaps with an edge area of ​​a portion of the vertical projection of the first light-transmitting opening on the substrate. Preferably, the first trace comprises a metal trace.

4. The display panel according to claim 1, wherein: The pixel unit includes a plurality of sub-pixels of different types, and a vertical projection of the first wiring on the substrate overlaps with vertical projections of the first light-transmitting openings corresponding to the sub-pixels of different types on the substrate at different positions; Preferably, the sizes of the first light-transmitting openings corresponding to different types of sub-pixels are different; Preferably, a vertical projection of the first wiring on the substrate overlaps at the same position as a vertical projection of the first light-transmitting opening corresponding to the sub-pixel of the same type on the substrate.

5. The display panel according to claim 4, wherein: The pixel unit includes a first sub-pixel and a second sub-pixel, and the first sub-pixel and the second sub-pixel emit light of different colors; In the extension direction of the first wiring, the first sub-pixels and the second sub-pixels are alternately arranged in sequence, and the opening size of the first light-transmitting opening of the second sub-pixel is larger than the opening size of the first light-transmitting opening of the first sub-pixel; The vertical projection of the first wiring on the substrate overlaps with a central area of ​​a vertical projection of the first light-transmitting opening of the first sub-pixel on the substrate, and the vertical projection of the first wiring on the substrate overlaps with an edge area of ​​a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate; Preferably, the pixel unit further includes a third sub-pixel, and a vertical projection of the first wiring on the substrate does not overlap with a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate; Preferably, the first sub-pixel is a red sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a green sub-pixel. The vertical projection of the first wiring on the substrate is located on the central axis of the vertical projection of the first light-transmitting opening of the first sub-pixel on the substrate, and the vertical projection of the first wiring on the substrate is located on one side of the central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate.

6. The display panel according to claim 5, wherein: The conductive layer further includes a second trace, and the second trace is provided on the same layer as the first trace; A vertical projection of the second wiring on the substrate overlaps an edge area of ​​a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate, and the vertical projection of the second wiring on the substrate and the vertical projection of the first wiring on the substrate are located on both sides of a central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate; Preferably, a vertical projection of the first wiring on the substrate and a vertical projection of the second wiring on the substrate respectively overlap with the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate on both sides of a central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate, and have the same overlapping area; Preferably, the shortest distance between a vertical projection of the first wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate is the same as the shortest distance between a vertical projection of the second wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate. Preferably, at the first light-transmitting opening of the second sub-pixel, a vertical projection of the second wiring on the substrate and a vertical projection of the first wiring on the substrate are symmetrically arranged about a central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate; preferably, an extension direction of the second wiring is the same as an extension direction of the first wiring; Preferably, the conductive layer further includes a third wiring, wherein a vertical projection of the third wiring on the substrate and a vertical projection of the second wiring on the substrate are located on both sides of a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate; Preferably, a vertical projection of the second wiring on the substrate and a vertical projection of the third wiring on the substrate respectively have the same overlapping area with the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate, on both sides of a central axis of the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate; Preferably, the shortest distance between a vertical projection of the second wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate is the same as the shortest distance between a vertical projection of the third wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate. Preferably, at the first light-transmitting opening of the third sub-pixel, a vertical projection of the second wiring on the substrate and a vertical projection of the third wiring on the substrate are symmetrically arranged about a central axis of the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate; Preferably, the third routing line is provided on the same layer as the first routing line, and an extension direction of the third routing line is the same as an extension direction of the second routing line.

7. The display panel according to claim 6, wherein: At least one pixel circuit is formed on the substrate, the pixel circuit includes a driving transistor and a first initialization transistor, the first initialization transistor is connected between the first wiring and the light-emitting element, and the first initialization transistor is used to transmit a first initialization voltage on the first wiring to the light-emitting element; The driving transistor is connected to the second wiring, and is used for transmitting the power supply voltage on the second wiring to the light-emitting element to drive the light-emitting element to emit light.

8. The display panel according to claim 5, wherein: The conductive layer further includes a fourth routing line, and the fourth routing line and the first routing line are arranged in a different layer; The vertical projection of the fourth wiring on the substrate is located on both sides of the central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate; Preferably, the vertical projections of the fourth traces on the substrate on both sides of the central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate have the same overlapping area as the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate; Preferably, the fourth traces located on both sides of the central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate have the same shortest distance between their vertical projections on the substrate and the central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate; Preferably, a portion where a vertical projection of the fourth trace on the substrate overlaps with a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate is symmetrically arranged with respect to a central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate; Preferably, a vertical projection of the fourth wiring on the substrate covers a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate; Preferably, a vertical projection of the fourth wiring on the substrate does not overlap with a vertical projection of the first light-transmitting opening of the first sub-pixel on the substrate; Preferably, the fourth wiring is located on a side of the first wiring away from the substrate; Preferably, the conductive layer includes a first conductive layer, a second conductive layer, a third conductive layer, a fourth conductive layer and a fifth conductive layer which are stacked; The first conductive layer, the second conductive layer, and the third conductive layer are used to form transistors in a pixel circuit. The first wiring is located in the fourth conductive layer, and the fourth wiring is located in the fifth conductive layer.

9. The display panel according to claim 8, wherein: The conductive layer further includes a fifth trace, and the fifth trace is provided on the same layer as the fourth trace; The fifth wiring is located on a side of the first light-transmitting opening of the first sub-pixel and the second sub-pixel close to the substrate, and a vertical projection of the fifth wiring on the substrate is located on both sides of a central axis of the vertical projection of the corresponding first light-transmitting opening on the substrate; Preferably, the vertical projections of the fifth traces on the substrate on both sides of the central axis of the vertical projection of the corresponding first light-transmitting opening on the substrate have the same overlapping area as the vertical projection of the first light-transmitting opening on the substrate; Preferably, the fifth traces located on both sides of the central axis of the vertical projection of the corresponding first light-transmitting opening on the substrate have the same shortest distance between their vertical projections on the substrate and the central axis of the vertical projection of the corresponding first light-transmitting opening on the substrate; Preferably, the vertical projection of the fifth wiring on the substrate is symmetrically arranged with respect to the central axis of the vertical projection of the corresponding first light-transmitting opening on the substrate; Preferably, the fifth routing line and the fourth routing line extend in the same direction; Preferably, the conductive layer further includes a sixth trace, and the sixth trace is provided on the same layer as the fourth trace; Preferably, a vertical projection of the sixth wiring on the substrate is located on a central axis of a vertical projection of the corresponding first light-transmitting opening on the substrate.

10. The display panel according to claim 1, wherein The display panel further includes a first electrode and an isolation structure, the first electrode is located on a side of the pixel defining layer close to the substrate, and the first light-transmitting opening exposes the first electrode; The isolation structure is located on a side of the pixel defining layer away from the substrate, and the isolation structure is provided with a second light-transmitting opening, wherein the second light-transmitting opening exposes the first light-transmitting opening and at least a portion of the pixel defining layer; Preferably, the display panel further comprises a light-emitting functional layer and a second electrode, the light-emitting functional layer is located on a side of the first electrode away from the substrate, the second electrode is located on a side of the light-emitting functional layer away from the substrate, and the second electrode is located in the first light-transmitting opening and the second light-transmitting opening; Preferably, the second electrode contacts at least a portion of the isolation structure.

11. The display panel according to claim 10, wherein: At least some adjacent second electrodes are insulated from each other; Preferably, a plurality of the first light-transmitting openings are arranged in an array, the isolation structure is provided around the first light-transmitting openings, and in at least the same row of pixel units, the isolation structures corresponding to adjacent pixel units are insulated from each other; in the same pixel unit, the second electrode is in contact with the isolation structure; Preferably, in the same column of pixel units, the isolation structures corresponding to adjacent pixel units are insulated from each other or connected to each other; Preferably, the isolation structure comprises a conductive material, and the isolation structure is further used to transmit a power supply voltage to the second electrode.

12. The display panel according to claim 10, wherein: The isolation structure includes a support portion and a crown portion, wherein the crown portion is located on a side of the support portion away from the base, and a vertical projection of the support portion on the base is located within a vertical projection of the crown portion on the base; Preferably, the isolation structure further comprises a root portion, the root portion is located on a side of the support portion close to the base, and a vertical projection of the support portion on the base is located within a vertical projection of the root portion on the base; Preferably, the root portion comprises a conductive material; Preferably, the isolation structure is further provided with an isolation opening exposing the pixel defining layer, and the isolation opening is spaced apart from the second light-transmitting opening.

13. A display panel, characterized in that: include: substrate; a pixel defining layer, located on one side of the substrate, the pixel defining layer comprising a plurality of first light-transmitting openings defining pixel units; a conductive layer disposed between the substrate and the pixel defining layer; In which, the conductive layer includes a first trace and a second trace, the vertical projection of the first trace on the substrate is located on the central axis of the vertical projection of at least part of the first light-transmitting opening on the substrate, and / or the vertical projection of the first trace on the substrate and the vertical projection of the second trace on the substrate are located on both sides of the central axis of the vertical projection of at least part of the first light-transmitting opening on the substrate.

14. The display panel according to claim 13, wherein: The first trace includes a main portion and a branch portion, the branch portion includes a first connecting sub-portion and a second connecting sub-portion, the second connecting sub-portion is connected to the main portion via the first connecting sub-portion, the main portion and the second connecting sub-portion extend along a first direction, the first connecting sub-portion extends along a second direction, the first direction and the second direction intersect and are both perpendicular to the thickness direction of the substrate; In which, the vertical projection of the main body on the substrate overlaps with the central area of ​​the vertical projection of part of the first light-transmitting opening on the substrate, and the vertical projection of the second connecting sub-portion on the substrate overlaps with the edge area of ​​the vertical projection of part of the first light-transmitting opening on the substrate; or, the vertical projection of the second connecting sub-portion on the substrate overlaps with the central area of ​​the vertical projection of part of the first light-transmitting opening on the substrate, and the vertical projection of the main body on the substrate overlaps with the edge area of ​​the vertical projection of part of the first light-transmitting opening on the substrate.

15. The display panel according to claim 13, wherein: The pixel unit includes a first sub-pixel and a second sub-pixel, and the first sub-pixel and the second sub-pixel emit light of different colors; The vertical projection of the first wiring on the substrate is located on the central axis of the vertical projection of the first light-transmitting opening of the first sub-pixel on the substrate. At the first light-transmitting opening of the second sub-pixel, the vertical projection of the second wiring on the substrate and the vertical projection of the first wiring on the substrate are located on both sides of the central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate. Preferably, a vertical projection of the first wiring on the substrate and a vertical projection of the second wiring on the substrate respectively overlap with the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate on both sides of a central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate, and have the same overlapping area; Preferably, the shortest distance between a vertical projection of the first wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate is the same as the shortest distance between a vertical projection of the second wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate. Preferably, at the first light-transmitting opening of the second sub-pixel, a vertical projection of the second wiring on the substrate and a vertical projection of the first wiring on the substrate are symmetrically arranged about a central axis of the vertical projection of the first light-transmitting opening of the second sub-pixel on the substrate; Preferably, the first routing line and the second routing line are arranged on the same layer; Preferably, the pixel unit further includes a third sub-pixel, and a vertical projection of the first wiring on the substrate does not overlap with a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate; Preferably, the conductive layer further includes a third wiring, wherein a vertical projection of the third wiring on the substrate and a vertical projection of the second wiring on the substrate are located on both sides of a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate; Preferably, a vertical projection of the second wiring on the substrate and a vertical projection of the third wiring on the substrate respectively have the same overlapping area with the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate, on both sides of a central axis of the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate; Preferably, the shortest distance between a vertical projection of the second wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate is the same as the shortest distance between a vertical projection of the third wiring on the substrate and a central axis of a vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate. Preferably, at the first light-transmitting opening of the third sub-pixel, the vertical projection of the second wiring on the substrate and the vertical projection of the third wiring on the substrate are symmetrically arranged about the central axis of the vertical projection of the first light-transmitting opening of the third sub-pixel on the substrate.

16. The display panel according to claim 13, wherein: The display panel further includes a first electrode and an isolation structure, the first electrode is located on a side of the pixel defining layer close to the substrate, and the first light-transmitting opening exposes the first electrode; The isolation structure is located on a side of the pixel defining layer away from the substrate, and the isolation structure is provided with a second light-transmitting opening, wherein the second light-transmitting opening exposes the first light-transmitting opening and at least a portion of the pixel defining layer; Preferably, the display panel further comprises a light-emitting functional layer and a second electrode, the light-emitting functional layer is located on a side of the first electrode away from the substrate, the second electrode is located on a side of the light-emitting functional layer away from the substrate, and the second electrode is located in the first light-transmitting opening and the second light-transmitting opening; Preferably, the second electrode contacts at least a portion of the isolation structure.

17. A display panel, characterized in that: include: substrate; an isolation structure located on one side of the substrate, the isolation structure comprising second light-transmitting openings, the second light-transmitting openings being arranged in a one-to-one correspondence with the pixel units; a conductive layer disposed between the substrate and the isolation structure; In which, the conductive layer includes a first trace and a second trace, the vertical projection of the first trace on the substrate is located on the central axis of the vertical projection of at least part of the second light-transmitting opening on the substrate, and / or the vertical projection of the first trace on the substrate and the vertical projection of the second trace on the substrate are located on both sides of the central axis of the vertical projection of at least part of the second light-transmitting opening on the substrate.

18. The display panel according to claim 17, wherein: The first trace includes a main portion and a branch portion, the branch portion includes a first connecting sub-portion and a second connecting sub-portion, the second connecting sub-portion is connected to the main portion via the first connecting sub-portion, the main portion and the second connecting sub-portion extend along a first direction, the first connecting sub-portion extends along a second direction, the first direction and the second direction intersect and are both perpendicular to the thickness direction of the substrate; In which, the vertical projection of the main body on the substrate overlaps with the central area of ​​the vertical projection of part of the second light-transmitting opening on the substrate, and the vertical projection of the second connecting sub-portion on the substrate overlaps with the edge area of ​​the vertical projection of part of the second light-transmitting opening on the substrate; or, the vertical projection of the second connecting sub-portion on the substrate overlaps with the central area of ​​the vertical projection of part of the second light-transmitting opening on the substrate, and the vertical projection of the main body on the substrate overlaps with the edge area of ​​the vertical projection of part of the second light-transmitting opening on the substrate.

19. The display panel according to claim 17, wherein: The pixel unit includes a first sub-pixel and a second sub-pixel, and the first sub-pixel and the second sub-pixel emit light of different colors; The vertical projection of the first wiring on the substrate is located on the central axis of the vertical projection of the second light-transmitting opening of the first sub-pixel on the substrate; at the second light-transmitting opening of the second sub-pixel, the vertical projection of the second wiring on the substrate and the vertical projection of the first wiring on the substrate are located on both sides of the central axis of the vertical projection of the second light-transmitting opening of the second sub-pixel on the substrate; Preferably, a vertical projection of the first wiring on the substrate and a vertical projection of the second wiring on the substrate respectively overlap with the vertical projection of the second light-transmitting opening of the second sub-pixel on the substrate on both sides of a central axis of the vertical projection of the second light-transmitting opening of the second sub-pixel on the substrate, and have the same overlapping area; Preferably, the shortest distance between a vertical projection of the first wiring on the substrate and a central axis of a vertical projection of the second light-transmitting opening of the second sub-pixel on the substrate is the same as the shortest distance between a vertical projection of the second wiring on the substrate and a central axis of a vertical projection of the second light-transmitting opening of the second sub-pixel on the substrate. Preferably, the first routing line and the second routing line are arranged on the same layer; Preferably, the pixel unit further includes a third sub-pixel, and a vertical projection of the first wiring on the substrate does not overlap with a vertical projection of the second light-transmitting opening of the third sub-pixel on the substrate; Preferably, the conductive layer further includes a third wiring, wherein a vertical projection of the third wiring on the substrate and a vertical projection of the second wiring on the substrate are located on both sides of a central axis of a vertical projection of the second light-transmitting opening of the third sub-pixel on the substrate; Preferably, a vertical projection of the second wiring on the substrate and a vertical projection of the third wiring on the substrate respectively have the same overlapping area with the vertical projection of the second light-transmitting opening of the third sub-pixel on the substrate, and on both sides of a central axis of the vertical projection of the second light-transmitting opening of the third sub-pixel on the substrate; Preferably, the shortest distance between a vertical projection of the second wiring on the substrate and a central axis of a vertical projection of the second light-transmitting opening of the third sub-pixel on the substrate is the same as the shortest distance between a vertical projection of the third wiring on the substrate and a central axis of a vertical projection of the second light-transmitting opening of the third sub-pixel on the substrate. Preferably, at the second light-transmitting opening of the third sub-pixel, the vertical projection of the second wiring on the substrate and the vertical projection of the third wiring on the substrate are symmetrically arranged about the central axis of the vertical projection of the second light-transmitting opening of the third sub-pixel on the substrate.

20. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 19.

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