Display panel and display device

Abstract

The embodiment of the invention discloses a display panel and a display device. The display panel comprises a pixel unit; the initialization lines are connected with the pixel units; the initialization line comprises at least one first conductive structure extending along a first direction and at least one second conductive structure extending along a second direction; the first direction intersects with the second direction; the first conductive structure is connected with the second conductive structure; the first conductive structure and the second conductive structure are arranged on different layers. According to the technical scheme provided by the embodiment of the invention, the uniformity of the initialization voltage transmitted on the initialization line is improved, the display effect of the display panel is improved, and the problem that the display effect of the display panel is poor is solved.

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 have higher and higher requirements on display panels. Existing display panels have the problem of poor display effect, which affects the display effect of display devices. Summary of the invention

[0003] Embodiments of the present invention provide a display panel and a display device to solve the problem of poor display effect of the display panel.

[0004] In order to achieve the above technical problems, the present invention adopts the following technical solutions:

[0005] An embodiment of the present invention provides a display panel, including:

[0006] Pixel unit;

[0007] At least one initialization line connected to the pixel unit;

[0008] The initialization line includes at least one first conductive structure extending along a first direction and at least one second conductive structure extending along a second direction; the first direction intersects the second direction;

[0009] The first conductive structure is connected to the second conductive structure;

[0010] The first conductive structure and the second conductive structure are arranged in different layers.

[0011] Optional, display panel, including:

[0012] substrate;

[0013] A first conductive layer disposed on one side of the substrate;

[0014] A second conductive layer disposed on a side of the first conductive layer away from the substrate;

[0015] A gate conductive layer disposed on a side of the second conductive layer away from the substrate;

[0016] A third conductive layer disposed on a side of the gate conductive layer away from the substrate;

[0017] a fourth conductive layer disposed on a side of the third conductive layer away from the substrate;

[0018] a fifth conductive layer disposed on a side of the fourth conductive layer away from the substrate;

[0019] The first conductive structure and the second conductive structure are respectively disposed in at least one of the first conductive layer, the gate conductive layer, the third conductive layer, the fourth conductive layer and the fifth conductive layer;

[0020] Preferably, each initialization line is distributed in a mesh shape.

[0021] Optionally, along the first direction, the first conductive structure is disposed on the first conductive layer, the gate conductive layer or the fourth conductive layer;

[0022] Along the second direction, the second conductive structure is disposed on the third conductive layer or the fifth conductive layer.

[0023] Optionally, when the first conductive structure of the same initialization line is set in the first conductive layer or the gate conductive layer, the second conductive structure of the same initialization line is set in the third conductive layer; or, when the first conductive structure of the same initialization line is set in the fourth conductive layer, the second conductive structure of the same initialization line is set in the fifth conductive layer.

[0024] Optionally, when the first conductive structure of the same initialization line is disposed in the gate conductive layer, the second conductive structure of the same initialization line is disposed in the fifth conductive layer.

[0025] Optionally, two adjacent first conductive structures are spaced apart; and two adjacent second conductive structures are spaced apart;

[0026] Preferably, two adjacent first conductive structures are parallel to each other;

[0027] Preferably, two adjacent second conductive structures are parallel to each other.

[0028] Preferably, two adjacent second conductive structures are parallel to each other.

[0029] Optionally, the first conductive layer is provided with a first conductive structure of a first initialization line;

[0030] The gate conductive layer is provided with a first conductive structure of a second initialization line;

[0031] The third conductive layer is provided with the second conductive structure of the first initialization line and / or the second conductive structure of the second initialization line;

[0032] Preferably, when the second conductive structure of the first initialization line and the second conductive structure of the second initialization line are arranged in the same layer, the second conductive structure of the first initialization line and the second conductive structure of the second initialization line are arranged alternately and at intervals.

[0033] Optionally, the fourth conductive layer is provided with a first conductive structure of a third initialization line;

[0034] The fifth conductive layer is provided with the second conductive structure of the third initialization line; or, the fifth conductive layer is provided with the second conductive structure of the third initialization line and the second conductive structure of the second initialization line;

[0035] Preferably, when the second conductive structure of the third initialization line and the second conductive structure of the second initialization line are arranged in the same layer, the second conductive structure of the third initialization line and the second conductive structure of the second initialization line are arranged alternately and at intervals;

[0036] Preferably, when the second conductive structure of the third initialization line and the second conductive structure of the second initialization line are disposed in the same layer in the fifth conductive layer, the third conductive layer is only provided with the second conductive structure of the first initialization line;

[0037] Preferably, when the second conductive structure of the first initialization line and the second conductive structure of the second initialization line are disposed in the same layer in the third conductive layer, only the second conductive structure of the third initialization line is disposed in the fifth conductive layer.

[0038] Optionally, the display panel also includes:

[0039] The initialization line includes a first initialization line and a second initialization line;

[0040] The pixel unit includes: a light emitting element, a driving module, a first initialization module and a second initialization module;

[0041] The driving module is connected between the first power supply terminal and the light emitting element, the first terminal of the first initialization module is connected to the first initialization line, and the second terminal of the first initialization module is connected to the control terminal of the driving module;

[0042] The second initialization module is connected between the second initialization line and the first electrode of the light emitting element, and the second electrode of the light emitting element is connected to the second power supply terminal.

[0043] Optionally, the initialization line further includes a third initialization line;

[0044] The pixel unit further includes a third initialization module; the third initialization module is connected between the first end of the driving module and the third initialization line;

[0045] Preferably, when the third initialization line is used as the third initialization line, the first initialization line is used as the first initialization line, and the second initialization line is used as the second initialization line, or the second initialization line is used as the first initialization line, and the first initialization line is used as the second initialization line;

[0046] Preferably, when the second initialization line is used as the third initialization line, the first initialization line is used as the first initialization line and the third initialization line is used as the second initialization line, or the third initialization line is used as the first initialization line and the first initialization line is used as the second initialization line;

[0047] Preferably, when the first initialization line serves as the third initialization line, the second initialization line serves as the first initialization line and the third initialization line serves as the second initialization line, or the third initialization line serves as the first initialization line and the second initialization line serves as the second initialization line.

[0048] According to another aspect of the present invention, this embodiment provides a display device, which includes the display panel provided in any item of the first aspect.

[0049] The display panel provided by the embodiment of the present invention includes at least one first conductive structure extending along the first direction and at least one second conductive structure extending along the second direction through the initialization line, the first conductive structure and the second conductive structure are connected, and the first conductive structure and the second conductive structure are arranged in different layers. In this way, the mesh connection of the initialization line can improve the density of the initialization line. In the initialization stage, at the same time, the pixel units located in the same row are provided with an initialization voltage by the first conductive structure and the second conductive structure located in different layers, which reduces the number of pixel units connected to the initialization line of the single layer, improves the uniformity of the initialization voltage transmitted on the initialization line, and thus improves the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] 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 of the present invention. 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 the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0051] Figure 1 is a schematic structural diagram of a display panel provided by an embodiment of the present invention;

[0052] Figure 2 This is a method provided by an embodiment of the present invention. Figure 1 The schematic structural diagram of the cross section of the panel in the AA' direction is shown in FIG.

[0053] Figure 3 Another embodiment of the present invention provides Figure 1 The schematic structural diagram of the cross section of the panel in the AA' direction is shown in FIG.

[0054] Figure 4 The embodiment of the present invention provides Figure 1 The schematic structural diagram of the cross section of the panel in the BB' direction is shown in FIG.

[0055] Figure 5is a schematic diagram of a first conductive structure and a second conductive structure of a display panel provided by an embodiment of the present invention;

[0056] Figure 6 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0057] Figure 7 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0058] Figure 8 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0059] Fig. 9 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0060] Fig.10 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0061] Fig.11 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0062] Fig.12 is a schematic structural diagram of a pixel unit of a display panel provided by an embodiment of the present invention;

[0063] Fig.13 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0064] Fig.14 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0065] Fig.15 is a schematic structural diagram of a pixel unit of another display panel provided by an embodiment of the present invention;

[0066] Fig.16 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0067] Fig.17 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0068] Fig.18 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0069] Fig.19 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0070] Fig. 20 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0071] Fig.21 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0072] Fig. 22 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0073] Fig.23 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention;

[0074] Fig.24 It is a structural schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0075] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0076] Based on the above technical problems, this embodiment proposes the following solutions:

[0077] Figure 1 It is a structural schematic diagram of a display panel provided by an embodiment of the present invention. Figure 2 This is a method provided by an embodiment of the present invention. Figure 1 FIG. 4 is a schematic structural diagram of a cross section of the panel in the AA' direction. Figure 3 Another embodiment of the present invention provides Figure 1 The schematic diagram of the cross section of the panel in the AA' direction is shown in FIG. Figures 1 to 3 The display panel 100 provided by the embodiment of the present invention includes a pixel unit 1; at least one initialization line 2, the initialization line 2 is connected to the pixel unit 1; the initialization line 2 includes at least one first conductive structure 21 extending along a first direction X and at least one second conductive structure 22 extending along a second direction Y; the first direction X intersects the second direction Y; the first conductive structure 21 and the second conductive structure 22 are connected; the first conductive structure 21 and the second conductive structure 22 are arranged in different layers.

[0078] Specifically, the display panel 100 may include a display area AA and a non-display area NA at least partially surrounding the display area AA. The display area AA is provided with a pixel unit 1. The pixel unit 1 includes a pixel driving circuit and a light-emitting element. The light-emitting element is provided in the display area AA. The display area AA is used to display a picture. The non-display area NA may at least partially surround the display area AA. The non-display area NA may include a border area of ​​the display panel 100. When the display panel 100 is a full-screen display panel, the non-display area NA may be provided at a position such as the back side of the display area AA.

[0079] In the display area AA, the initialization line 2 is connected to the pixel unit 1, and the initialization line 2 is used to transmit the initialization voltage. The initialization voltage is used to transmit the voltage to the pixel driving circuit of the pixel unit 1 in the initialization stage to initialize the voltage of the control end of the driving module of the pixel driving circuit. The initialization line 2 is also used to initialize the first pole of the light-emitting element, such as the anode. The initialization voltage is generally a negative voltage.

[0080] The initialization line 2 includes at least one first conductive structure 21 extending along the first direction X and at least one second conductive structure 22 extending along the second direction Y. Exemplarily, the first direction X may be a row direction of the pixel unit 1, and the second direction Y may be a direction at a certain angle to the first direction X, for example, a column direction of the pixel unit 1. The extension direction of the first conductive structure 21 and the extension direction of the second conductive structure 22 intersect, which can reduce the coupling between the first conductive structure 21 and the second conductive structure 22, and increase the number density of the initialization lines 2 in the display area.

[0081] The first conductive structure 21 and the second conductive structure 22 located in different layers are connected, so that the first conductive structure 21 and the second conductive structure 22 located in different layers can be used as the same initialization line 2 to transmit the initialization voltage. In this way, the density of the first conductive structure 21 and the second conductive structure 22 of the initialization line 2 is increased, the voltage drop of the initialization voltage is reduced, the uniformity of the initialization voltage transmitted on the initialization line 2 is increased, and the display effect of the display panel 100 is improved.

[0082] The display panel 100 provided in this embodiment includes at least one first conductive structure 21 extending along the first direction X and at least one second conductive structure 22 extending along the second direction Y through the initialization line 2, the first conductive structure 21 and the second conductive structure 22 are connected, and the first conductive structure 21 and the second conductive structure 22 are arranged in different layers. In this way, the mesh connection of the initialization line 2 can improve the density of the initialization line 2. In the initialization stage, at the same time, the pixel units 1 located in the same row are provided with an initialization voltage by the first conductive structure 21 and the second conductive structure 22 located in different layers, which reduces the number of pixel units 1 connected to the single-layer initialization line 2, reduces the load of the initialization line 2, and improves the uniformity of the initialization voltage transmitted on the initialization line 2, thereby improving the display effect of the display panel.

[0083] Optional, Figure 4 The embodiment of the present invention provides Figure 1 The schematic diagram of the cross section of the panel in the BB' direction is shown in FIG. Figure 4 On the basis of the above embodiment, the display panel includes: a substrate 10; a first conductive layer M1 arranged on one side of the substrate 10; a second conductive layer M2 arranged on a side of the first conductive layer M1 away from the substrate 10; a gate conductive layer GATO arranged on a side of the second conductive layer M2 away from the substrate 10; a third conductive layer M3 arranged on a side of the gate conductive layer GATO away from the substrate 10; a fourth conductive layer M4 arranged on a side of the third conductive layer M3 away from the substrate 10; a fifth conductive layer M5 arranged on a side of the fourth conductive layer M4 away from the substrate 10; and a first conductive structure 21 and a second conductive structure 22 are respectively arranged on at least one of the first conductive layer M1, the gate conductive layer GATO, the third conductive layer M3, the fourth conductive layer M4 and the fifth conductive layer M5.

[0084] Specifically, the substrate 10 may include a silicon substrate, a glass substrate 10 or a sapphire substrate 10, etc. A first channel layer PSI is disposed on one side of the substrate 10. Figure 4 The first channel layer is exemplarily shown to include a P-Si layer. A first conductive layer M1 is disposed on a side of the channel layer away from the substrate. Figure 4 TFT1 in the figure may refer to a driving transistor of the driving module. The gate of the driving transistor is disposed on the first conductive layer M1. Figure 4TFT2 in the figure may refer to a switching transistor. The second conductive layer M2 is disposed on a side of the first conductive layer M1 away from the substrate 10. The second channel layer IGZO is disposed on a side of the second conductive layer M2 away from the substrate 10. The material of the second channel layer may include indium gallium zinc oxide. A gate conductive layer GATO is disposed on a side of the second channel layer away from the substrate 10. The gate of the switching transistor is disposed on the gate conductive layer GATO. The source and drain of the driving transistor and the switching transistor are located on the third conductive layer M3. The fourth conductive layer M4 is disposed on a side of the third conductive layer M3 away from the substrate 10. The fifth conductive layer M5 is disposed on a side of the fourth conductive layer M4 away from the substrate 10.

[0085] By setting the first conductive structure 21 and the second conductive structure 22 of the initialization line 2 respectively in at least one of the first conductive layer M1, the gate conductive layer GATO, the third conductive layer M3, the fourth conductive layer M4 and the fifth conductive layer M5, the initialization line 2 has sufficient wiring space, the wiring density of the initialization line 2 is improved, the voltage drop of the initialization voltage transmitted on the initialization line 2 is reduced, the uniformity of the initialization voltage transmitted from the initialization line 2 to the pixel unit 1 is improved, and the display effect of the display panel is further improved.

[0086] Optional, continue to see Figure 1 , based on the above embodiment, each initialization line 2 is distributed in a mesh shape.

[0087] Specifically, each initialization line 2 is distributed in a mesh shape, which can reduce the voltage drop of the initialization line 2 and further improve the uniformity of the initialization voltage transmitted on the initialization line 2 .

[0088] Optional, Figure 5 FIG. 1 is a schematic diagram of a first conductive structure and a second conductive structure of a display panel provided by an embodiment of the present invention. Figure 5 Along the first direction X, the first conductive structure 21 is disposed in the first conductive layer M1, the gate conductive layer GATO or the fourth conductive layer M4; along the second direction Y, the second conductive structure 22 is disposed in the third conductive layer M3 or the fifth conductive layer M5.

[0089] Specifically, when the first conductive layer M1, the gate conductive layer GATO, and the fourth conductive layer M4 are provided with the initialization line 2, the first conductive structure 21 extending along the first direction X is provided on the first conductive layer M1, the gate conductive layer GATO, and / or the fourth conductive layer M4. When the third conductive layer M3 and the fifth conductive layer M5 are provided with the initialization line 2, the second conductive structure 22 extending along the second direction Y is provided on the third conductive layer M3 or the fifth conductive layer M5. In this way, the initialization lines 2 located in the same layer can have the same extension direction, which can further improve the number density of the initialization lines 2 and further improve the uniformity of the initialization voltage transmitted on the initialization lines 2.

[0090] It should be noted that Figure 5 The example shows that along the first direction X, the first conductive structure 21 is disposed in the fourth conductive layer M4 , and along the second direction Y, the second conductive structure 22 is disposed in the fifth conductive layer M5 , which is not limited here.

[0091] Optional, Figure 6 It is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Figure 7 FIG. 1 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Figure 6 and Figure 7 , when the first conductive structure 21 of the same initialization line 2 is disposed in the first conductive layer M1 or the gate conductive layer GATO, the second conductive structure 22 of the same initialization line 2 is disposed in the third conductive layer M3. Figure 5 When the first conductive structure 21 of the same initialization line 2 is disposed in the fourth conductive layer M4, the second conductive structure 22 of the same initialization line 2 is disposed in the fifth conductive layer M5.

[0092] Specifically, since the first conductive structure 21 extending along the first direction X is located in the first conductive layer M1 and the gate conductive layer GATO, the second conductive structure 22 extending along the second direction Y is located in the third conductive layer M3. And the distance between the first conductive layer M1 and the gate conductive layer GATO and the third conductive layer M3 is relatively close. Figure 6 , when the first conductive structure 21 of an initialization line 2 is disposed in the first conductive layer M1, the second conductive structure 22 of the initialization line 2 is disposed in the third conductive layer M3. Figure 7 When the first conductive structure 21 of an initialization line 2 is disposed on the gate conductive layer GATO, the second conductive structure 22 of the initialization line 2 is disposed on the third conductive layer M3. This arrangement facilitates connecting the second conductive structure 22 of the third conductive layer M3, which is close to each other, to the first conductive structure 21 located on the first conductive layer M1 and the first conductive structure 21 located on the gate conductive layer GATO, respectively.

[0093] Since the first conductive structure 21 extending along the first direction X is located in the fourth conductive layer M4, the second conductive structure 22 extending along the second direction Y is located in the fifth conductive layer M5, and the distance between the fourth conductive layer M4 and the fifth conductive layer M5 is relatively short. Figure 5 , when the first conductive structure 21 of an initialization line 2 is arranged in the fourth conductive layer M4, the second conductive structure 22 of the initialization line 2 is arranged in the fifth conductive layer M5. This arrangement facilitates the connection of the second conductive structure 22 of the fifth conductive layer M5 which is close to the first conductive structure 21 located in the fourth conductive layer M4. This arrangement saves the manufacturing process and the space occupied by the initialization line 2, and reduces the manufacturing cost of the display panel.

[0094] Optional, Figure 8 FIG. 1 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Figure 8 When the first conductive structure 21 of the same initialization line 2 is disposed in the gate conductive layer GATO, the second conductive structure 22 of the same initialization line 2 is disposed in the fifth conductive layer M5.

[0095] Specifically, such a configuration can increase the wiring space of the initialization line 2, and can reasonably adjust the positions of the first conductive structure 21 and the second conductive structure 22 of the initialization line 2 as needed, further improve the number density of the initialization line 2, and further improve the uniformity of the initialization voltage transmitted on the initialization line 2.

[0096] Optionally, based on the above embodiment, continue to refer to Figure 8 , two adjacent first conductive structures 21 are spaced apart; two adjacent second conductive structures 22 are spaced apart; preferably, two adjacent first conductive structures 21 are parallel to each other; preferably, two adjacent second conductive structures 22 are parallel to each other.

[0097] Specifically, by arranging two adjacent first conductive structures 21 at intervals and two adjacent second conductive structures 22 at intervals, the two adjacent first conductive structures 21 are insulated from each other and the two adjacent second conductive structures 22 are insulated from each other, thereby avoiding crosstalk when initializing different rows of pixel units 1. This arrangement facilitates further improving the display effect of the display panel.

[0098] Optional, Fig. 9 FIG. 1 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Fig. 9The first conductive layer M1 is provided with a first conductive structure 21 of the first initialization line L1; the gate conductive layer GATO is provided with a first conductive structure 21 of the second initialization line L2; the third conductive layer M3 is provided with a second conductive structure 22 of the first initialization line L1 and / or a second conductive structure 22 of the second initialization line L2; preferably, when the second conductive structure 22 of the first initialization line L1 and the second conductive structure 22 of the second initialization line L2 are provided in the same layer, the second conductive structure 22 of the first initialization line L1 and the second conductive structure 22 of the second initialization line L2 are alternately and spaced apart.

[0099] Specifically, such a configuration provides a new idea for configuring the first initialization line L1 and the second initialization line L2 as a mesh structure when the display panel includes two initialization lines 2. Such a configuration further increases the number density of the initialization lines 2, further increases the uniformity of the initialization voltage transmitted on the initialization lines 2, and improves the display effect of the display panel.

[0100] Optional, Fig.10 This is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Fig.11 FIG. 1 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Fig.10 , the fourth conductive layer M4 is provided with the first conductive structure 21 of the third initialization line L3; the fifth conductive layer M5 is provided with the second conductive structure 22 of the third initialization line L3; or, see Fig.11 The fifth conductive layer M5 is provided with the second conductive structure 22 of the third initialization line L3 and the second conductive structure 22 of the second initialization line L2.

[0101] Specifically, such a configuration provides a new idea for setting the first initialization line L1, the second initialization line L2 and the third initialization line L3 as a mesh structure when the display panel includes three initialization lines 2. Such a configuration provides sufficient wiring space for setting the initialization line 2 as a mesh initialization line 2, further improves the number density of the initialization line 2, further improves the uniformity of the initialization voltage transmitted on the initialization line 2, and improves the display effect of the display panel.

[0102] Optional, continue to see Fig.11 When the second conductive structure 22 of the third initialization line L3 and the second conductive structure 22 of the second initialization line L2 are arranged in the same layer, the second conductive structure 22 of the third initialization line L3 and the second conductive structure 22 of the second initialization line L2 are arranged alternately and at intervals. Fig.11, when the second conductive structure 22 of the third initialization line L3 and the second conductive structure 22 of the second initialization line L2 are disposed in the fifth conductive layer M5 at the same layer, the third conductive layer M3 only has the second conductive structure 22 of the first initialization line L1 disposed thereon. Optionally, when the second conductive structure 22 of the first initialization line L1 and the second conductive structure 22 of the second initialization line L2 are disposed in the third conductive layer M3 at the same layer, the fifth conductive layer M5 only has the second conductive structure 22 of the third initialization line L3 disposed thereon.

[0103] Specifically, such an arrangement enables a display panel having three initialization lines 2 to have sufficient wiring space, so that the first initialization line L1, the second initialization line L2, and the third initialization line L3 are all arranged in a mesh structure. Such an arrangement further increases the number density of the initialization lines 2, further increases the uniformity of the initialization voltage transmitted on the initialization lines 2, and improves the display effect of the display panel.

[0104] Optional, Fig.12 FIG. 1 is a schematic diagram of a pixel unit of a display panel provided by an embodiment of the present invention. Fig.12 The initialization line 2 provided in this embodiment includes a first initialization line Vref1 and a second initialization line Vref2. The pixel unit includes: a light-emitting element D1, a driving module 10, a first initialization module 20 and a second initialization module 30. The driving module 10 is connected between the first power supply terminal ELVDD and the light-emitting element D1, the first end of the first initialization module 20 is connected to the first initialization line Vref1, and the second end of the first initialization module 20 is connected to the control end of the driving module 10; the second initialization module 30 is connected between the second initialization line Vref2 and the first pole of the light-emitting element D1, and the second pole of the light-emitting element D1 is connected to the second power supply terminal ELVSS.

[0105] For details, see Fig.12 , the driving module 10 may include a driving transistor T1. The light emitting element D1 includes a light emitting diode. The first initialization module 20 includes a first switch tube T4. The second initialization module 30 includes a second switch tube T7. The control end of the first initialization module 20 is used to input a first scan signal Scan1. The control end of the second initialization module 30 is used to input a second scan signal Scan2. In the initialization stage, the first initialization line Vref1 inputs an initialization voltage to the control end of the driving module 10 through the turned-on first initialization module 20. In the initialization stage, the second initialization module 30 transmits an initialization voltage to a first pole, such as an anode, of the light emitting element D1.

[0106] Fig.13 This is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Fig.14 FIG. 1 is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Fig.13 and Fig.14 , the first initialization line L1 may include the first initialization line Vref1, and the second initialization line L2 may include the second initialization line Vref2. Alternatively, the first initialization line L1 may include the second initialization line Vref2, and the second initialization line L2 may include the first initialization line Vref1.

[0107] An optional implementation method, Fig.13 and Fig.14 It is shown by way of example that the first conductive structure 21 of the second initialization line Vref2 is arranged in the fourth conductive layer M4, and the second conductive structure 22 of the second initialization line Vref2 is arranged in the fifth conductive layer M5. The second conductive structure 22 of the first initialization line Vref1 is arranged in the third conductive layer M3. The first conductive structure of the first initialization line Vref1 can be arranged in the first conductive layer or the gate conductive layer (not shown in the figure). In this way, the initialization voltage transmitted by the first initialization line Vref1 to the gate of the driving module 10 is more uniform, so that the initialization voltages of the driving modules 10 of the pixel units 1 in the same row are as similar as possible, thereby improving the display uniformity of the display panel. In this way, the initialization voltage transmitted by the second initialization line Vref2 to the first pole of the light-emitting element D1 is more uniform, so that the initialization voltages of the driving modules 10 of the pixel units 1 in the same row are as similar as possible, further improving the display uniformity of the display panel.

[0108] Optional, Fig.15 FIG. 1 is a schematic diagram of a pixel unit structure of another display panel provided by an embodiment of the present invention. Fig.15 , the initialization line 2 further includes a third initialization line Vref3; the pixel unit 1 further includes a third initialization module 80; the third initialization module 80 is connected between the first end of the driving module 10 and the third initialization line Vref3.

[0109] Specifically, the third initialization module 80 includes a third switch tube T8. The control terminal of the third initialization module 80 is used to input the second scan signal Scan2. In the initialization stage, the third initialization module 80 is used to transmit an initialization voltage to the first electrode, such as the source electrode, of the driving module 10.

[0110] Optional, Fig.16 This is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Fig.17Schematic diagram of the first conductive structure and the second conductive structure of another display panel provided by an embodiment of the present invention. Based on the above embodiment, when the third initialization line Vref3 is used as the third initialization line L3, the first initialization line Vref1 is used as the first initialization line L1, and the second initialization line Vref2 is used as the second initialization line L2, or the second initialization line Vref2 is used as the first initialization line L1, and the first initialization line Vref1 is used as the second initialization line L2.

[0111] Preferably, when the second initialization line Vref2 serves as the third initialization line L3, the first initialization line Vref1 serves as the first initialization line L1 and the third initialization line Vref3 serves as the second initialization line L2; or, the third initialization line Vref3 serves as the first initialization line L1 and the first initialization line Vref1 serves as the second initialization line L2.

[0112] Preferably, when the first initialization line Vref1 serves as the third initialization line L3, the second initialization line Vref2 serves as the first initialization line L1 and the third initialization line Vref3 serves as the second initialization line L2; or, the third initialization line Vref3 serves as the first initialization line L1 and the second initialization line Vref2 serves as the second initialization line L2.

[0113] Fig.16 and Fig.17 It is shown by way of example that the first conductive structure 21 of the second initialization line Vref2 is disposed in the fourth conductive layer M4, and the second conductive structure 22 of the second initialization line Vref2 is disposed in the fifth conductive layer M5. The second conductive structure 22 of the first initialization line Vref1 is disposed in the third conductive layer M3, and the second conductive structure 22 of the third initialization line Vref3 is disposed in the third conductive layer M3. The second conductive structure 22 of the first initialization line Vref1 and the second conductive structure 22 of the third initialization line Vref3 are alternately and spaced apart. The first conductive structure of the first initialization line Vref1 can be disposed in the first conductive layer (not shown in the figure), and the first conductive structure of the third initialization line Vref3 can be disposed in the gate conductive layer (not shown in the figure). In this way, the number density of the third initialization line Vref3 is increased, the voltage drop of the third initialization voltage is reduced, the uniformity of the initialization voltage transmitted on the third initialization line Vref3 is improved, and the display effect of the display panel is further improved.

[0114] Another optional implementation method, Fig.18 This is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Fig.19 This is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Fig.18 and Fig.19 It is shown by way of example that the first conductive structure 21 of the third initialization line Vref3 is disposed in the fourth conductive layer M4, and the second conductive structure 22 of the third initialization line Vref3 is disposed in the fifth conductive layer M5. The second conductive structure 22 of the first initialization line Vref1 is disposed in the third conductive layer M3, and the second conductive structure 22 of the second initialization line Vref2 is disposed in the third conductive layer M3. The second conductive structure 22 of the first initialization line Vref1 and the second conductive structure 22 of the second initialization line Vref2 are alternately and spaced apart. The first conductive structure of the first initialization line Vref1 can be disposed in the first conductive layer (not shown in the figure), and the first conductive structure of the second initialization line Vref2 can be disposed in the gate conductive layer (not shown in the figure). In this way, the number density of the first initialization line Vref1, the second initialization line Vref2 and the third initialization line Vref3 is increased, the voltage drop of the third initialization voltage is reduced, the uniformity of the initialization voltage transmitted on the third initialization line Vref3 is improved, and the display effect of the display panel is further improved.

[0115] Another optional implementation method, Fig. 20 This is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Fig.21 This is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Fig. 20 and Fig.21 It is shown by way of example that the first conductive structure 21 of the first initialization line Vref1 is disposed in the fourth conductive layer M4, and the second conductive structure 22 of the first initialization line Vref1 is disposed in the fifth conductive layer M5. The second conductive structure 22 of the second initialization line Vref2 is disposed in the third conductive layer M3, and the second conductive structure 22 of the third initialization line Vref3 is disposed in the third conductive layer M3. The second conductive structure 22 of the second initialization line Vref2 and the second conductive structure 22 of the third initialization line Vref3 are alternately and spaced apart. The first conductive structure of the second initialization line Vref2 can be disposed in the first conductive layer (not shown in the figure), and the first conductive structure of the third initialization line Vref3 can be disposed in the gate conductive layer (not shown in the figure). In this way, the number density of the first initialization line Vref1, the second initialization line Vref2 and the third initialization line Vref3 is increased, the voltage drop of the third initialization voltage is reduced, the uniformity of the initialization voltage transmitted on the third initialization line Vref3 is increased, and the display effect of the display panel is further improved.

[0116] Another optional implementation method, Fig. 22 This is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Fig.23This is a schematic diagram of a first conductive structure and a second conductive structure of another display panel provided by an embodiment of the present invention. Fig. 22 and Fig.23 It is shown by way of example that the first conductive structure 21 of the second initialization line Vref2 is disposed in the fourth conductive layer M4, and the second conductive structure 22 of the second initialization line Vref2 is disposed in the fifth conductive layer M5. The second conductive structure 22 of the third initialization line Vref3 is disposed in the fifth conductive layer M5. The second conductive structure 22 of the second initialization line Vref2 and the second conductive structure 22 of the third initialization line Vref3 are alternately and spaced apart. The second conductive structure 22 of the first initialization line Vref1 is disposed in the third conductive layer M3. The first conductive structure of the first initialization line Vref1 can be disposed in the first conductive layer (not shown in the figure), and the first conductive structure of the third initialization line Vref3 can be disposed in the gate conductive layer (not shown in the figure). In this way, the number density of the first initialization line Vref1, the second initialization line Vref2 and the third initialization line Vref3 is increased, the voltage drop of the third initialization voltage is reduced, the uniformity of the initialization voltage transmitted on the third initialization line Vref3 is increased, and the display effect of the display panel is further improved.

[0117] An optional implementation method, see Fig.12 and Fig.15 , the pixel circuit provided in this embodiment also includes: a data writing module 40 and a compensation module 50. The first initialization module 20 and the compensation module 50 are both electrically connected to the gate of the driving transistor T1. The first initialization module 20 is used to transmit the initialization voltage to the gate of the driving transistor T1 in the initialization stage. The data writing module 40 is used to write the data voltage Vdata to the gate of the driving transistor T1 in the data writing stage. The compensation module 50 is used to write information including the threshold voltage of the driving transistor T1 to the gate of the driving transistor T1 in the data writing stage. The driving transistor T1 is used to generate a driving signal according to the voltage of its own gate to drive the light-emitting element D1 to emit light in the light-emitting stage. The first initialization module 20 and the compensation module 50 are used to be turned off according to the control signal to maintain the voltage of the gate of the driving transistor T1. The data writing module 40 includes a fourth switch tube T2, and the compensation module 50 includes a fifth switch tube T3. The control end of the fourth switch tube T2 and the control end of the fifth switch tube T3 are both connected to the third scan signal Scan3.

[0118] Another optional implementation method, see Fig.12 and Fig.15The pixel circuit provided in this embodiment may further include: a leakage suppression module (not shown in the figure), a first end of the leakage suppression module is connected to the gate of the driving transistor T1, and a second end of the leakage suppression module is connected to the second end of the first initialization module 20 and the first end of the compensation module 50 at a first node. The control end of the leakage suppression module is connected to the compensation control signal. The leakage suppression module is used to transmit the initialization voltage to the gate of the driving transistor T1 during the initialization phase. In the data writing phase, information containing the threshold voltage of the driving transistor T1 is written to the gate of the driving transistor T1. The leakage suppression module may include a leakage suppression transistor, a first end of the leakage suppression transistor is connected to the gate of the driving transistor T1, a second end of the leakage suppression transistor is electrically connected to the first node, and the control end of the leakage suppression transistor is connected to the compensation control signal.

[0119] Another optional implementation method, see Fig.12 and Fig.15 The pixel circuit provided in this embodiment may further include: a light emitting control module 60, wherein the control end of the light emitting control module 60 is connected to the light emitting control signal EM. The light emitting control module 60 includes a first light emitting control transistor T5 and a second light emitting control transistor T6. When the first light emitting control transistor T5 and the second light emitting control transistor T6 are turned on according to the light emitting control signal EM connected to their control ends, the driving transistor T1 generates a driving signal according to the voltage of its own gate in the light emitting stage to drive the light emitting element D1 to emit light. The light emitting element D1 includes a light emitting device. The light emitting device D1 may be an organic light emitting device or an inorganic light emitting device, which is not specifically limited in this embodiment.

[0120] Another optional implementation method, see Fig.12 and Fig.15 The pixel circuit provided in this embodiment may further include: a storage module 70. A first end of the storage module 70 is connected to the first power supply voltage input end, and a second end of the storage module 70 is connected to the gate of the driving transistor T1. The storage module 70 includes a first capacitor Cst, and the first capacitor Cst is used to store electric energy and stabilize the gate potential of the driving transistor T1.

[0121] This embodiment provides a display device. Fig.24 is a schematic diagram of the structure of a display device provided by an embodiment of the present invention. Fig.24 The display device 200 provided in this embodiment includes the display panel 100 provided in any of the above embodiments, and has the beneficial effects of the display panel 100 provided in any of the above embodiments, which will not be described in detail here. The display device 200 provided in this embodiment may include a mobile terminal such as a mobile phone, a computer or a wearable device.

[0122] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: include: Pixel unit; at least one initialization line, wherein the initialization line is connected to the pixel unit; The initialization line includes at least one first conductive structure extending along a first direction and at least one second conductive structure extending along a second direction; the first direction intersects the second direction; The first conductive structure is connected to the second conductive structure; The first conductive structure and the second conductive structure are arranged in different layers.

2. The display panel according to claim 1, characterized in that: The display panel comprises: substrate; A first conductive layer disposed on one side of the substrate; a second conductive layer disposed on a side of the first conductive layer away from the substrate; A gate conductive layer disposed on a side of the second conductive layer away from the substrate; A third conductive layer disposed on a side of the gate conductive layer away from the substrate; a fourth conductive layer disposed on a side of the third conductive layer away from the substrate; a fifth conductive layer disposed on a side of the fourth conductive layer away from the substrate; The first conductive structure and the second conductive structure are respectively disposed in at least one of the first conductive layer, the gate conductive layer, the third conductive layer, the fourth conductive layer and the fifth conductive layer; Preferably, each of the initialization lines is distributed in a mesh shape.

3. The display panel according to claim 2, characterized in that: Along the first direction, the first conductive structure is disposed on the first conductive layer, the gate conductive layer or the fourth conductive layer; Along the second direction, the second conductive structure is disposed on the third conductive layer or the fifth conductive layer.

4. The display panel according to claim 3, characterized in that: When the first conductive structure of the same initialization line is disposed in the first conductive layer or the gate conductive layer, the second conductive structure of the same initialization line is disposed in the third conductive layer; or, When the first conductive structure of the same initialization line is disposed in the fourth conductive layer, the second conductive structure of the same initialization line is disposed in the fifth conductive layer.

5. The display panel according to claim 3, characterized in that: When the first conductive structure of the same initialization line is disposed in the gate conductive layer, the second conductive structure of the same initialization line is disposed in the fifth conductive layer.

6. The display panel according to claim 4 or 5, characterized in that: Two adjacent first conductive structures are arranged at intervals; two adjacent second conductive structures are arranged at intervals; Preferably, two adjacent first conductive structures are parallel to each other; Preferably, two adjacent second conductive structures are parallel to each other.

7. The display panel according to claim 6, characterized in that: The first conductive layer is provided with a first conductive structure of the first initialization line; The gate conductive layer is provided with a first conductive structure of the second initialization line; The third conductive layer is provided with the second conductive structure of the first initialization line and / or the second conductive structure of the second initialization line; Preferably, when the second conductive structure of the first initialization line and the second conductive structure of the second initialization line are arranged in the same layer, the second conductive structure of the first initialization line and the second conductive structure of the second initialization line are arranged alternately and at intervals.

8. The display panel according to claim 7, characterized in that: The fourth conductive layer is provided with a first conductive structure of the third initialization line; The fifth conductive layer is provided with the second conductive structure of the third initialization line; or the fifth conductive layer is provided with the second conductive structure of the third initialization line and the second conductive structure of the second initialization line; Preferably, when the second conductive structure of the third initialization line and the second conductive structure of the second initialization line are arranged in the same layer, the second conductive structure of the third initialization line and the second conductive structure of the second initialization line are arranged alternately and at intervals; Preferably, when the second conductive structure of the third initialization line and the second conductive structure of the second initialization line are arranged in the same layer in the fifth conductive layer, the third conductive layer is only provided with the second conductive structure of the first initialization line; Preferably, when the second conductive structure of the first initialization line and the second conductive structure of the second initialization line are arranged in the same layer in the third conductive layer, the fifth conductive layer is only provided with the second conductive structure of the third initialization line.

9. The display panel according to claim 8, characterized in that: The display panel further includes: The initialization lines include a first initialization line and a second initialization line; The pixel unit comprises: a light emitting element, a driving module, a first initialization module and a second initialization module; The driving module is connected between the first power supply terminal and the light emitting element, the first terminal of the first initialization module is connected to the first initialization line, and the second terminal of the first initialization module is connected to the control terminal of the driving module; The second initialization module is connected between the second initialization line and the first electrode of the light emitting element, and the second electrode of the light emitting element is connected to the second power supply terminal; Alternatively, preferably, the initialization line further includes a third initialization line; The pixel unit further includes a third initialization module; the third initialization module is connected between the first end of the driving module and the third initialization line; Preferably, when the third initialization line is used as the third initialization line, the first initialization line is used as the first initialization line, and the second initialization line is used as the second initialization line, or the second initialization line is used as the first initialization line, and the first initialization line is used as the second initialization line; Preferably, when the second initialization line is used as the third initialization line, the first initialization line is used as the first initialization line, and the third initialization line is used as the second initialization line, or the third initialization line is used as the first initialization line, and the first initialization line is used as the second initialization line; Preferably, when the first initialization line serves as the third initialization line, the second initialization line serves as the first initialization line and the third initialization line serves as the second initialization line, or the third initialization line serves as the first initialization line and the second initialization line serves as the second initialization line.

10. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 9.

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