Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and aims to provide a display panel comprising at least two functional component areas. The display panel comprises a display area and at least two functional component areas, the display area at least partially surrounds the functional component areas, and the at least two functional component areas are at least partially overlapped in the first direction; the display area comprises a plurality of first signal lines, and at least parts of the first signal lines extend in the first direction; the plurality of first signal lines are arranged along a second direction, and the second direction intersects with the first direction; the first signal lines comprise a first type of signal lines and a second type of signal lines; the first type signal line at least partially surrounds the at least two functional component areas; and along the first direction, at least one second type signal line is disconnected at two sides of one functional component area.

Description

[Technical field]

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

[0002] With the diversified design of display panels, a solution has emerged to open a through hole inside the display area of ​​the display panel to set up components such as cameras. Since the through hole opened inside the display area will cut off part of the signal line, when at least two through holes are opened in the display area, how to set the signal lines corresponding to the at least two through holes has become a research focus of researchers. [Summary of the invention]

[0003] In view of this, an embodiment of the present invention provides a display panel and a display device, which are used to provide a display panel including at least two functional component areas.

[0004] In one aspect, an embodiment of the present invention provides a display panel, comprising a display area and at least two functional component areas, wherein the display area at least partially surrounds the functional component area, and along a first direction, the at least two functional component areas at least partially overlap;

[0005] The display area includes a plurality of first signal lines, at least a portion of the first signal lines extending along a first direction; the plurality of first signal lines are arranged along a second direction, the second direction intersecting the first direction;

[0006] The first signal line includes a first type of signal line and a second type of signal line;

[0007] The first type of signal line at least partially surrounds at least two functional component areas; along the first direction, at least one second type of signal line is disconnected on both sides of one of the functional component areas.

[0008] On the other hand, an embodiment of the present invention provides a display device, including the above-mentioned display panel.

[0009] The display panel and display device provided by the embodiments of the present invention can ensure that the signals transmitted by the first type of signal lines are normally transmitted on both sides of the functional component areas along the first direction by allowing the first type of signal lines to at least partially surround at least two functional component areas, thereby ensuring the normal operation of the sub-pixels located on both sides of the functional component areas.

[0010] Moreover, the embodiment of the present invention can reduce the number of first connecting lines connecting the second type of signal lines set in the corresponding functional component area by disconnecting the second type of signal lines on both sides of one of the functional component areas. When the first connecting lines are set in the first non-display area between the functional component area and the display area, the setting method provided by the embodiment of the present invention is adopted, which is beneficial to reducing the width of the corresponding first non-display area.

Brief Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. 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 paying creative work.

[0012] Figure 1 A schematic diagram of a partial area of ​​a display panel provided by an embodiment of the present invention;

[0013] Figure 2 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0014] Figure 3 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0015] Figure 4 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0016] Figure 5 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0017] Figure 6 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0018] Figure 7 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0019] Figure 8 A schematic diagram of a sub-pixel circuit provided by an embodiment of the present invention;

[0020] Fig. 9 A schematic diagram of the working timing of a pixel driving circuit provided by an embodiment of the present invention;

[0021] Fig.10 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0022] Fig.11 A schematic diagram of another display panel provided by an embodiment of the present invention;

[0023] Fig.12 A schematic diagram of another display panel provided by an embodiment of the present invention;

[0024] Fig.13 A working timing diagram of two pixel driving circuit rows in a pixel driving circuit group provided by an embodiment of the present invention;

[0025] Fig.14 A schematic diagram of a functional signal line provided by an embodiment of the present invention;

[0026] Fig.15 A schematic diagram of another pixel driving circuit provided by an embodiment of the present invention;

[0027] Fig.16 for Fig.15 A working timing diagram of the pixel driving circuit shown;

[0028] Fig.17 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0029] Fig.18 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0030] Fig.19 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0031] Fig. 20 for Figure 8 and Fig.15 A cross-sectional schematic diagram of a third transistor and a fifth transistor in the pixel driving circuit shown;

[0032] Fig.21 A schematic cross-sectional view of a display panel provided by an embodiment of the present invention;

[0033] Fig. 22 An enlarged schematic diagram of a partial area of ​​a display panel provided by an embodiment of the present invention;

[0034] Fig.23 An enlarged schematic diagram of a partial area of ​​another display panel provided as an example of the present invention;

[0035] Fig.24 A cross-sectional schematic diagram of a first connecting line provided by an embodiment of the present invention;

[0036] Fig.25 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0037] Fig.26 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0038] Fig. 27 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0039] Fig.28 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0040] Fig.29 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0041] Fig.30 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention;

[0042] Fig.31 A schematic diagram of a display device provided by an embodiment of the present invention. [Specific implementation method]

[0043] In order to better understand the technical solution of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0044] It should be clear that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0046] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0047] It should be understood that, although the term first, second etc. may be adopted to describe the functional component area in the embodiment of the present invention, these functional component areas should not be limited to these terms. These terms are only used to distinguish each functional component area from each other. For example, without departing from the scope of the embodiment of the present invention, the first functional component area may also be referred to as the second functional component area, and similarly, the second functional component area may also be referred to as the first functional component area.

[0048] An embodiment of the present invention provides a display panel, such as Figure 1 As shown, Figure 1A schematic diagram of a display panel provided in an embodiment of the present invention, the display panel includes a display area AA and at least two functional component areas DA, the display area AA at least partially surrounds the functional component area DA, and along the first direction h1, the at least two functional component areas DA at least partially overlap. In an embodiment of the present invention, the light transmittance of the functional component area DA is greater than the optical transmittance of the display area AA. The display area AA includes a plurality of sub-pixels P. Exemplarily, the functional component area DA does not include the sub-pixel P.

[0049] In the embodiment of the present invention, the functional component area DA may be arranged in various forms, for example, the functional component area DA includes a through hole or a blind hole. The through hole penetrates the display panel in the thickness direction of the display panel, and can be obtained by cutting the display panel. The blind hole does not penetrate the display panel in the thickness direction of the display panel, and the sub-pixel can be arranged away from the functional component area DA to obtain a functional component area DA with a larger light transmittance.

[0050] Exemplarily, the shapes of the at least two functional component areas DA may be the same, or different. Exemplarily, in the embodiment of the present invention, the areas of the at least two functional component areas DA may be the same, or different.

[0051] like Figure 1 As shown, the display area AA includes a plurality of first signal lines 1, at least part of which extends along a first direction h1; the plurality of first signal lines 1 are arranged along a second direction h2, and the second direction h2 intersects the first direction h1. The first signal lines 1 are electrically connected to a plurality of sub-pixels P arranged along the first direction h1.

[0052] In the embodiment of the present invention, the first signal line 1 includes a first type signal line 11 and a second type signal line 12. The first type signal line 11 and the second type signal line 12 are both arranged corresponding to the functional component area DA. In other words, along the first direction, the first type signal line 11 and the second type signal line 12 are at least partially overlapped with the functional component area DA. Specifically, in the embodiment of the present invention, the first type signal line 11 at least partially surrounds at least two functional component areas DA. Along the first direction h1, at least one second type signal line 12 is disconnected on both sides of one of the functional component areas DA.

[0053] The display panel provided by the embodiment of the present invention can ensure that the signals transmitted by the first-type signal lines 11 are normally transmitted on both sides of the functional component area DA along the first direction h1 by making the first-type signal lines 11 at least partially surround at least two functional component areas DA, thereby ensuring the normal operation of the sub-pixels located on both sides of the functional component area DA.

[0054] Moreover, the embodiment of the present invention disconnects the second type signal line 12 on both sides of one of the functional component areas DA, and there is no need to set connecting lines on the periphery of one of the functional component areas DA to connect the second type signal lines 12 located on both sides of the functional component area DA. If connecting lines connecting the second type signal lines 12 are set on the periphery of at least two functional component areas DA, on the one hand, the load of the second type signal lines will be greatly increased, resulting in uneven loads for the second type signal lines set in the corresponding functional component area DA and other signal lines not set in the corresponding functional component area DA. On the other hand, the space occupied by the connecting lines will be greatly increased, resulting in an increase in the density of the second type signal lines 12, which increases the risk of signal crosstalk. Therefore, the embodiment of the present invention can balance the load differences of the second type signal lines 12 set at different positions of the display panel by disconnecting the second type signal lines 12 on both sides of one of the functional component areas DA, thereby reducing the space occupied by the connecting lines and avoiding signal crosstalk.

[0055] For example, Figure 1 As shown, the display panel includes a virtual line L extending along the second direction h2, and along the first direction h1, the display area AA includes a first edge S1 and a second edge S2 opposite to each other, the distance from the first edge S1 to the virtual line L is d1, and the distance from the second edge S2 to the virtual line L is d2, wherein 0.9≤d1 / d2≤1.1; it can be understood that the distances from the virtual line L to the first edge S1 and the second edge S2 are approximately equal. The at least two functional component areas DA include a first functional component area DA1 and a second functional component area DA2, and the virtual line L passes through the first functional component area DA1; along the first direction h1, the second type signal line 12 is disconnected on both sides of the first functional component area DA1. In this way, the loads of the two second type signal lines 12 disconnected on both sides of the first functional component area DA1 can be made consistent, and the display uniformity of the sub-pixels connected to the two second type signal lines 12 disconnected on both sides of the first functional component area DA1 can be improved.

[0056] Optional, such as Figure 2 As shown, Figure 2 A schematic diagram of another display panel provided by an embodiment of the present invention, wherein at least two functional component areas DA include a first functional component area DA1 and a second functional component area DA2, along a first direction h1, the length of the display area is B, the distance between the first functional component area DA1 and the edge of the display area AA is A, and B / 4≤A≤B / 2. For example, Figure 2As shown, the display area AA includes a first edge S1 and a second edge S2 that are arranged opposite to each other along a first direction h1. The distance between the first functional component area DA1 and the first edge S1 can be A as described above. Alternatively, the distance between the first functional component area DA1 and the second edge S2 can be A as described above. In the embodiment of the present invention, along the first direction h1, the second type signal line 12 is disconnected on both sides of the first functional component area DA1. In the embodiment of the present invention, by making the distance A between the first functional component area DA1 and the edge of the display area AA satisfy B / 4≤A≤B / 2, the first functional component area DA1 is prevented from being too close to the first edge S1, and the first functional component area DA1 is prevented from being too far from the first edge S1; optionally, the value of A can be B / 3, which ensures that any one of the two optical component areas can achieve when the distance meets the value of A, and the disconnection setting corresponding to one optical area can be achieved, thereby expanding the selectivity of the disconnection setting.

[0057] For example, Figure 3 As shown, Figure 3 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention, wherein at least two functional component areas DA include a first functional component area DA1 and a second functional component area DA2. Along a first direction h1, a length d1 of the first functional component area DA1 is greater than a length d2 of the second functional component area DA2. Along the first direction h1, the second type of signal line 12 is disconnected on both sides of the first functional component area DA1. Since the length of the first functional component area DA1 is longer, the signal line ( Figure 3 The number of connecting lines (not shown) is also large. In the embodiment of the present invention, by disconnecting the second type signal lines 12 on both sides of the first functional component area DA1 having a larger length, the number of connecting lines that need to be set around the first functional component area DA1 to connect the second type signal lines 12 can be reduced, which is beneficial to reducing the width of the first non-display area NA1 around the first functional component area DA1.

[0058] Exemplarily, for the first functional component area DA1 having a longer length in the first direction h1, an embodiment of the present invention may also set it to the above-mentioned virtual line L passing through the display panel, and / or, an embodiment of the present invention may also make the distance A between the first functional component area DA1 having a longer length in the first direction h1 and one of the edges of the display area AA satisfy B / 4≤A≤B / 2.

[0059] For example, Figure 1 , Figure 2 and Figure 3 As shown, the first signal line 1 includes a first connection line 10, which electrically connects the first signal lines 1 located on both sides of at least one functional component area DA. Exemplarily, along the second direction h2, the first connection line 10 at least partially overlaps the functional component area DA.

[0060] For example, Figure 1 , Figure 2 and Figure 3 As shown, the first connection line 10 includes a first-type connection line 101 and a second-type connection line 102. The first-type connection line 101 belongs to the first-type signal line 11, and the second-type connection line 102 belongs to the second-type signal line 12. That is, the first-type signal line 11 includes the first-type connection line 101, and the first-type connection line 101 electrically connects the first-type signal line 11 located on both sides of the functional component area DA. The second-type signal line 12 includes the second-type connection line 102, and the second-type connection line 102 connects the second-type signal line 12 located on both sides of one of the functional component areas DA.

[0061] In the embodiment of the present invention, Figure 1 , Figure 2 and Figure 3 As shown, the number of first-type connection lines 101 is greater than the number of second-type connection lines 102. Specifically, the first connection line 10 includes at least two first-type connection lines 101, and the first connection line 10 includes at least one second-type connection line 102. The at least two first-type connection lines 101 are respectively arranged corresponding to at least two functional component areas DA. Figure 1 , Figure 2 and Figure 3 As shown, when the display panel includes the first functional component area DA1 and the second functional component area DA2, one of the first-type connecting lines 101 is electrically connected to the first-type signal lines 11 located on both sides of the first functional component area DA1, and another first-type connecting line 101 is electrically connected to the first-type signal lines 11 located on both sides of the second functional component area DA2. When the second-type signal lines 12 are disconnected on both sides of the first functional component area DA1, the second-type connecting lines 102 are electrically connected to the second-type signal lines 12 located on both sides of the second functional component area DA2.

[0062] For example, Figure 1 , Figure 2 and Figure 3 As shown, the display panel further includes a first non-display area NA1 located between the functional component area DA and the display area AA along the second direction h2; at least a portion of the first connection line 10 is located in the first non-display area NA1. Figure 1 , Figure 2 and Figure 3 As shown, at least part of the first connection line 10 extends in the direction of the edge of the functional component area DA closest to it. For example, when at least part of the edge of the functional component area DA includes an arc, at least part of the first connection line 10 can also be set as an arc.

[0063] For example, in the embodiment of the present invention, at least part of the first connection line 10 may be disposed in the display area AA. This arrangement is conducive to narrowing the width of the first non-display area NA1. Figure 4 As shown, Figure 4 A schematic diagram of a partial area of ​​another display panel provided in an embodiment of the present invention, wherein the first connection line 10 includes a first-type connection line 101 and a second-type connection line 102, at least a portion of the first-type connection line 101 is located in the display area AA, and at least a portion of the second-type connection line 102 is located in the display area AA. Of course, in an embodiment of the present invention, one of the first-type connection line 101 and the second-type connection line 102 can also be set in the display area AA, and the other can be set in the first non-display area NA1, which is not illustrated in the figure here.

[0064] When at least a portion of the first connection line 10 is disposed in the display area AA, exemplarily, in combination with Figure 4 As shown, the first connecting line 10 comprises a first line segment 1001 and a second line segment 1002 which are electrically connected, and the first line segment 1001 and the second line segment 1002 extend in different directions. Figure 4 As shown, the first line segment 1001 extends along the first direction h1, and the second line segment 1002 extends along the second direction h2. Optionally, the first line segment 1001 and the second line segment 1002 may be located in the same film layer, or in different film layers, and the two may be connected through a via.

[0065] For example, Figure 5 As shown, Figure 5 A schematic diagram of a partial area of ​​another display panel provided in an embodiment of the present invention, the display panel further includes a second non-display area NA2, the second non-display area NA2 is arranged on a side of the display area AA away from the functional component area DA; at least a portion of the first connecting line 10 is located in the second non-display area NA2. Figure 5 The figure shows a schematic diagram of setting the first line segment 1001 of the first type of connection line 101 in the second non-display area NA2, and setting the first line segment 1001 and the second line segment 1002 of the second type of connection line 102 in the display area AA. In this way, the first connection line 10 can be prevented from being interfered by other signal lines transmitting different signals in the display area AA.

[0066] Exemplarily, the display panel includes a plurality of first signal lines 1 corresponding to the functional component area DA, and along the second direction h2, a plurality of first connection lines 10 included in the plurality of first signal lines 1 are located on the same side of the functional component area DA. Figure 6 As shown, Figure 6A schematic diagram of a partial area of ​​another display panel provided in an embodiment of the present invention, wherein the display panel includes a first functional component area DA1 and a second functional component area DA2, and the display panel includes three first signal lines 1 corresponding to the first functional component area DA1 and the second functional component area DA2, wherein two of the three first signal lines 1 are first-type signal lines 11, and the other is a second-type signal line 12. The second-type signal line 12 is disconnected on both sides of the first functional component area DA1, and the second-type signal line 12 on both sides of the second functional component area DA2 is electrically connected through a first connecting line 10. At the first functional component area DA1, the two first connecting lines 10 are located on the upper side of the first functional component area DA1. At the second functional component area DA2, the three first connecting lines 10 are located on the upper side of the second functional component area DA2. Of course, in an embodiment of the present invention, multiple first connecting lines 10 can also be arranged on the lower side of the first functional component area DA1 and the second functional component area DA2, which is not illustrated in the figure here.

[0067] It should be noted that in the attached Figure 6 The first connection lines 10 illustrated in the figure are all arranged in the first non-display area NA1. Of course, the embodiments of the present invention are not limited to the above positions. The first connection lines 10 described in the above embodiments can also be arranged in the second non-display area NA2, or in the display area AA, or in at least two positions in the first non-display area NA1, the second non-display area NA2 and the display area AA.

[0068] Alternatively, along the second direction h2, the embodiment of the present invention may also arrange the first connection lines 10 included in a portion of the first signal lines 1 on one side of the functional component area DA, and arrange the first connection lines 10 included in another portion of the first signal lines 1 on the other side of the functional component area DA. Figure 7 As shown, Figure 7A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention, wherein the display panel includes a first functional component area DA1 and a second functional component area DA2, and the display panel includes three first signal lines 1 corresponding to the first functional component area DA1 and the second functional component area DA2, and two of the three first signal lines 1 are first-type signal lines 11, and the other is a second-type signal line 12. The second-type signal line 12 is disconnected on both sides of the first functional component area DA1, and the second-type signal line 12 on both sides of the second functional component area DA2 is electrically connected through the first connecting line 10. At the first functional component area DA1, one first connecting line 10 is located on the upper side of the first functional component area DA1, and the other first connecting line 10 is located on the lower side of the first functional component area DA1. At the second functional component area DA2, two first connecting lines 10 are located on the upper side of the second functional component area DA2, and the other first connecting line 10 is located on the lower side of the second functional component area DA2. Of course, in the second functional component area DA2, the embodiment of the present invention can also set two of the first connecting lines 10 at the lower side of the second functional component area DA2, and set another first connecting line 10 at the upper side of the second functional component area DA2. The embodiment of the present invention does not limit the number of first connecting lines.

[0069] In the embodiment of the present invention, the first connection line 10 may also be disposed in at least one position among the first non-display area NA1, the second non-display area NA2 and the display area AA, which is not limited in the embodiment of the present application.

[0070] Optionally, along the second direction h2, the embodiment of the present invention can set the number of first connection lines 10 on both sides of the functional component area DA to be equal, so that the widths of the first non-display areas NA1 on both sides of the functional component area DA tend to be consistent.

[0071] Exemplary, combined Figure 8 As shown, Figure 8 A circuit diagram of a sub-pixel P provided in an embodiment of the present invention, the sub-pixel P includes an electrically connected pixel driving circuit 400 and a light-emitting element 500. The pixel driving circuit 400 includes a driving transistor M0, a light-emitting control module 41, a gate reset module 42, a data writing module 43, a threshold compensation module 44 and a light-emitting element reset module 45.

[0072] The control electrode of the driving transistor M0 is electrically connected to the first node N1 , the first electrode of the driving transistor M0 is electrically connected to the second node N2 , and the second electrode of the driving transistor M0 is electrically connected to the third node N3 .

[0073] The light emitting control module 41 includes a first sub-control module 411 and a second sub-control module 412. The input end of the first sub-control module 411 is electrically connected to the first power supply voltage line PVDD, and the output end thereof is electrically connected to the first electrode of the driving transistor M0. The input end of the second sub-control module 412 is electrically connected to the second electrode of the driving transistor M0, and the output end thereof is electrically connected to the first electrode of the light emitting element 500. The second electrode of the light emitting element 500 is electrically connected to the second power supply voltage line PVEE. The control ends of the first sub-control module 411 and the second sub-control module 412 are both electrically connected to the light emitting control signal line EM.

[0074] The control end of the gate reset module 42 is electrically connected to the first scan control signal line SN1 , the input end is electrically connected to the first reset signal line Ref1 ; and the output end is electrically connected to the gate of the driving transistor M0 .

[0075] The control end of the data writing module 43 is electrically connected to the second scanning control signal line SP, the input end is electrically connected to the data signal line Vdata, and the output end is electrically connected to the first electrode of the driving transistor M0.

[0076] The control end of the threshold compensation module 44 is electrically connected to the third scan control signal line SN2 , the input end is electrically connected to the second electrode of the driving transistor M0 , and the output end is electrically connected to the gate of the driving transistor M0 .

[0077] The control end of the light emitting element reset module 45 is electrically connected to the fourth scan control signal line SP*, the input end is electrically connected to the second reset signal line Ref2 ; and the output end is electrically connected to the first electrode of the light emitting element 500 .

[0078] For example, Figure 8 As shown, the first sub-control module 411 includes a first transistor M1, the second sub-control module 412 includes a second transistor M2, the gate reset module 42 includes a third transistor M3, the data writing module 43 includes a fourth transistor M4, the threshold compensation module 44 includes a fifth transistor M5, and the light emitting element reset module 45 includes a sixth transistor M6. The pixel driving circuit 400 also includes a storage capacitor Cst. The first plate of the storage capacitor Cst is electrically connected to the first node N1, and the second plate is electrically connected to the first power supply voltage line PVDD.

[0079] Exemplarily, the third transistor M3 and the fifth transistor M5 may be oxide transistors, for example, indium gallium zinc oxide (IGZO) transistors may be selected, so that the third transistor M3 and the fifth transistor M5 have a smaller off-state leakage current, thereby improving the potential stability of the first node N1. In particular, when the display panel is displayed in a low-frequency mode, the potential of the first node N1 needs to be maintained for a long time, and the third transistor M3 and the fifth transistor M5 electrically connected to the first node N1 are set as indium gallium zinc oxide transistors, which can ensure the brightness uniformity of the light-emitting element 500 under low-frequency display.

[0080] like Fig. 9 As shown, Fig. 9 A schematic diagram of the working timing of a pixel driving circuit provided by an embodiment of the present invention, wherein the working process of the pixel driving circuit includes a reset phase t1, a charging phase t2 and a light emitting phase t3.

[0081] In the reset stage t1 , the first scan control signal line SN1 controls the third transistor M3 to be turned on, and the first reset signal provided by the first reset signal line Ref1 resets the first node N1 through the third transistor M3 .

[0082] In the charging stage t2, the second scan control signal line SP controls the fourth transistor M4 to be turned on, and the data voltage V provided by the data voltage terminal Vdata is data The fourth transistor M4 writes the second node N2. The driving transistor M0 is turned on. In this stage, the third scanning control signal line SN2 controls the fifth transistor M5 to be turned on. In this process, the potential of the first node N1 changes continuously until the potential of the first node N1 reaches V N1 Change to V N1 =V data -|V th |, V th is the threshold voltage of the driving transistor M0. Optionally, at this stage, the fourth scan control signal line SP* controls the sixth transistor M6 to be turned on, and the second reset signal provided by the second reset signal line Ref2 resets the light emitting element 500 through the sixth transistor M6. Exemplarily, the first reset signal and the second reset signal may be equal. Exemplarily, the signal provided by the fourth scan control signal line SP* may be the same as the signal provided by the second scan control signal line SP. For example, the fourth scan control signal line SP* and the second scan control signal line SP may be electrically connected.

[0083] In the light emitting stage t3 , the first transistor M1 , the second transistor M2 and the driving transistor M0 are turned on, the third transistor M3 , the fourth transistor M4 and the fifth transistor M5 are all turned off, and the light emitting element 500 electrically connected to the pixel driving circuit 400 is lit.

[0084] Exemplarily, the second type of signal lines 12 include control signal lines, which are signal lines electrically connected to control electrodes of some transistors in the pixel driving circuit 400 .

[0085] For example, Fig.10 As shown, Fig.10 A schematic diagram of a partial area of ​​another display panel provided in an embodiment of the present invention, wherein the display panel further includes a second non-display area NA2, and the second non-display area NA2 at least partially surrounds the display area AA. The second non-display area NA2 includes a first type of driving circuit 31 and a second type of driving circuit 32. The first type of driving circuit 31 is electrically connected to the first type of signal line 11, and the first type of driving circuit 31 is located on one side of the display area AA along the first direction h1. The second type of driving circuit 32 is electrically connected to the control signal line 121, and the second type of driving circuit 32 is arranged on both sides of the display area AA along the first direction h1. That is, the second type of driving circuit 32 adopts a bilateral driving mode, and the first type of driving circuit 31 adopts a unilateral driving mode. In the embodiment of the present invention, by setting the second type of driving circuit 32 to bilateral driving, the voltage drop of the signal provided by the second type of driving circuit 32 on the control signal line 121 can be reduced, thereby avoiding a large delay in the signal provided by the second type of driving circuit 32 and ensuring the accuracy of the signal. Moreover, in the embodiment of the present invention, by disconnecting the control signal line 121 at the location of one of the functional component areas DA, the control signal lines 121 located on both sides of the functional component area DA can respectively receive signals through the two second-type driving circuits 32 located on both sides of the display area AA, thereby ensuring the normal driving of the sub-pixels P located on both sides of the functional component area DA.

[0086] Exemplary, combined Fig.11 and Fig.12 As shown, Fig.11 and Fig.12Schematic diagram of two other display panels provided in embodiments of the present invention, display area AA includes a plurality of pixel driving circuit groups 4 arranged along the second direction h2, the pixel driving circuit group 4 includes at least two pixel driving circuit rows 40 arranged along the second direction h2, and the pixel driving circuit row 40 includes a plurality of the above-mentioned pixel driving circuits 400 arranged along the first direction h1. The first type of driving circuit 31 includes a plurality of cascaded first type driving units 310, and the second type of driving circuit 32 includes a plurality of cascaded second type driving units 320. The same first type of driving unit 310 is electrically connected to at least two pixel driving circuit rows 40 in the same pixel driving circuit group 4 through at least two first type signal lines 11. That is, the first type of driving circuit 31 can be a driving circuit that adopts a one-drive-many driving mode in the embodiments of the present invention. The same second type of driving unit 320 is electrically connected to the same pixel driving circuit row 40 through a second type signal line 12. That is, the second type of driving circuit 32 can be a driving circuit that adopts a one-drive-one driving mode in the embodiments of the present invention.

[0087] like Fig.11 As shown, the display panel includes a light emitting control circuit EM_V, a first scanning control circuit SN1_V, a second scanning control circuit SP_V, a third scanning control circuit SN2_V and a fourth scanning control circuit SP*_V. The light emitting control circuit EM_V is electrically connected to the light emitting control signal line EM, the first scanning control circuit SN1_V is electrically connected to the first scanning control signal line SN1, the second scanning control circuit SP_V is electrically connected to the second scanning control signal line SP, the third scanning control circuit SN2_V is electrically connected to the third scanning control signal line SN2, and the fourth scanning control circuit SP*_V is electrically connected to the fourth scanning control signal line SP*.

[0088] In the embodiment of the present invention, the first type of signal line 11 includes at least one of a light emitting control signal line EM, a first scanning control signal line SN1, a third scanning control signal line SN2, and a fourth scanning control signal line SP*. Fig.11 As shown, the first type of driving circuit 31 includes at least one of a light emitting control circuit EM_V, a first scanning control circuit SN1_V, a third scanning control circuit SN2_V, and a fourth scanning control circuit SP*_V. The control signal line 121 includes a second scanning control signal line SP. Fig.11 As shown, the second type of driving circuit 32 includes a second scanning control circuit SP_V. That is, the embodiment of the present invention can make at least one of the light emitting control signal line EM, the first scanning control signal line SN1, the third scanning control signal line SN2, and the fourth scanning control signal line SP* not disconnected at each functional component area DA, and make the second scanning control signal line SP disconnected at one of the functional component areas DA.

[0089] Exemplary, combined Figure 8 and Fig.13 As shown, Fig.13 An operating timing diagram of two pixel driving circuit rows in a pixel driving circuit group provided in an embodiment of the present invention, the light emitting control signals received by the two pixel driving circuit rows are the same, the first scanning control signals received by the two pixel driving circuit rows are the same, the third scanning control signals received by the two pixel driving circuit rows are the same, the fourth scanning control signals received by the two pixel driving circuit rows are the same, and the two pixel driving circuit rows are electrically connected to two second scanning driving units, respectively. Fig.13 EM in the figure represents the signal of the light emitting control signal line connected to the two pixel driving circuit rows, SN1 represents the signal of the first scanning control signal line connected to the two pixel driving circuit rows, SN2 represents the signal of the third scanning control signal line connected to the two pixel driving circuit rows, SP* represents the signal of the fourth scanning control signal line connected to the two pixel driving circuit rows, SP_1 represents the signal of the second scanning control signal line connected to one of the pixel driving circuit rows, and SP_2 represents the signal of the second scanning control signal line connected to the other pixel driving circuit row. Fig.13 It can be seen that the pulse width of the signals provided by the second scanning control signal line SP_1 and the second scanning control signal line SP_2 are both smaller than the pulse width of the signal provided by the light-emitting control signal line EM, the pulse width of the signals provided by the second scanning control signal line SP_1 and the second scanning control signal line SP_2 are both smaller than the pulse width of the signal provided by the first scanning control signal line SN1, the pulse width of the signals provided by the second scanning control signal line SP_1 and the second scanning control signal line SP_2 are both smaller than the pulse width of the signal provided by the third scanning control signal line SN2, and the pulse width of the signals provided by the second scanning control signal line SP_1 and the second scanning control signal line SP_2 are both smaller than the pulse width of the signal provided by the fourth scanning control signal line SP*.

[0090] In the embodiment of the present invention, the control signal line 121 is set to include a second scan control signal line SP, that is, the second scan control signal line SP is disconnected at one of the functional component areas DA, and the second scan control circuit SP_V is driven on both sides. In the process of the second scan control signal being transmitted on the second scan control signal line SP, the attenuation of the signal transmitted by the second scan control signal line SP on the second scan control signal line SP can be reduced, thereby ensuring the accurate output of the signal with a smaller pulse width transmitted by the second scan control signal line SP.

[0091] For example, Fig.12As shown, the display panel also includes at least one first bonding wire 51, and the first type of signal lines 11 transmitting the same signal electrically connected to at least two pixel driving circuit rows 40 in the same pixel driving circuit group 4 are electrically connected to the same first bonding wire 51, and the first bonding wire 51 is electrically connected to the first type of connecting line 101 set in the above-mentioned corresponding functional component area DA.

[0092] Specifically, the first type signal lines 11 transmitting the same signal electrically connected to at least two pixel driving circuit rows 40 in the same pixel driving circuit group 4 are electrically connected to the same first bonding line 51, including:

[0093] The light emitting control signal line EM electrically connected to at least two pixel driving circuit rows 40 in the same pixel driving circuit group 4 is electrically connected to the same first bonding line 51; the first scanning control signal line SN1 electrically connected to at least two pixel driving circuit rows 40 in the same pixel driving circuit group 4 is electrically connected to the same first bonding line 51; the third scanning control signal line SN2 electrically connected to at least two pixel driving circuit rows 40 in the same pixel driving circuit group 4 is electrically connected to the same first bonding line 51; the fourth scanning control signal line SP* electrically connected to at least two pixel driving circuit rows 40 in the same pixel driving circuit group 4 is electrically connected to the same first bonding line 51.

[0094] Such arrangement can reduce the number of the first type connection lines 101, and when the first type connection lines 101 are arranged in the first non-display area NA1, it is helpful to reduce the width of the first non-display area NA1. When the first type connection lines 101 are arranged in the display area AA, it is helpful to reduce the mutual interference between the first type connection lines 101 and other types of signals transmitted in the display area AA. Fig.11 and Fig.12 As an illustration, a pixel driving circuit group 4 includes two pixel driving circuit rows 40 .

[0095] Optionally, the second type of signal line 12 further includes a functional signal line, which is used to transmit a constant signal. The functional signal line refers to a signal line electrically connected to the input end of at least part of the transistors of the pixel driving circuit 400. For example, Fig.14 As shown, Fig.14A schematic diagram of a functional signal line 122 provided in an embodiment of the present invention, at least part of the functional signal line 122 extends along the first direction h1. Part of the functional signal line 122 is disconnected at one of the functional component areas DA. Optionally, a functional signal connection line (not shown) extending along the second direction h2 may also be provided in the display panel to connect the functional signal line 122 disconnected by one of the functional component areas DA. Alternatively, in an embodiment of the present invention, functional signal buses (not shown) may also be provided in the non-display areas on both sides of the display area AA.

[0096] Exemplarily, in the embodiment of the present invention, the functional signal line 122 includes the above-mentioned first reset signal line Ref1. That is, the embodiment of the present invention can disconnect the first reset signal line Ref1 on both sides of at least one functional component area DA. The embodiment of the present invention can avoid setting too many connection lines around the functional component area DA by disconnecting the first reset signal line Ref1 on both sides of one functional component area DA, which is conducive to reducing the width of the first non-display area NA1 around the functional component area DA.

[0097] Exemplarily, the functional signal line 122 includes a second reset signal line Ref2. That is, the embodiment of the present invention can disconnect the second reset signal line Ref2 at both sides of one of the functional component areas DA.

[0098] For example, Fig.15 As shown, Fig.15 Schematic diagram of another pixel driving circuit provided by an embodiment of the present invention, the pixel driving circuit 400 further includes a bias adjustment module 46, and the bias adjustment module 46 is electrically connected to the fourth scanning control signal line SP* and the adjustment signal line DVH. Fig.15 As shown, the bias adjustment module 46 includes a sixth transistor M6, a gate of the sixth transistor M6 is electrically connected to the fourth scan control signal line SP*, a first electrode of the bias adjustment module 46 is electrically connected to the adjustment signal line DVH, and a second electrode of the sixth transistor M6 is electrically connected to the first electrode of the driving transistor M0.

[0099] Combination Fig.16 As shown, Fig.16 for Fig.15 A working timing diagram of the pixel driving circuit shown in FIG. 1 includes a modulation stage t4 in addition to a reset stage t1, a charging stage t2 and a light-emitting stage t3. The modulation stage t4 is located between the charging stage t2 and the light-emitting stage t3. In the modulation stage t4, the fourth scanning control signal line SP* controls the sixth transistor M6 to be turned on, and the bias voltage provided by the adjustment signal line DVH is written into the first electrode of the driving transistor M0 through the sixth transistor M6 to adjust the bias state of the driving transistor M0.

[0100] Exemplarily, the functional signal line 122 includes an adjustment signal line DVH. That is, in the embodiment of the present invention, the adjustment signal line DVH can be disconnected at both sides of one of the functional component areas DA. This arrangement can reduce the number of connection lines connected to the adjustment signal line DVH required to be set at the corresponding functional component area DA, which is conducive to reducing the width of the first non-display area NA1 on both sides of the functional component area DA.

[0101] It should be noted that Fig.15 The bias adjustment module 46 and the light emitting element reset module 45 are both electrically connected to the fourth scanning control signal line SP* as shown, and when the modulation stage t4 is set between the charging stage t2 and the light emitting stage t3, and the light emitting element is reset before the light emitting stage t3, the bias adjustment module 46 and the light emitting element reset module 45 can also be electrically connected to other different signal lines. For example, when the types of the sixth transistor M6 and the third transistor M3 are set to be the same, the embodiment of the present invention can also electrically connect the sixth transistor M6 and the third transistor M3 to the first scanning control signal line SN1, and the embodiment of the present invention is not limited to this.

[0102] Exemplarily, the second type signal line 12 includes N functional signal lines 122. In the embodiment of the present invention, the N functional signal lines 122 are electrically connected to M second type connection lines 102, where 1≤M≤N; M and N are both integers. Fig.17 As shown, Fig.17 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention, wherein M=1, N=2, that is, the display panel includes two functional signal lines 122 corresponding to the functional component area DA, and the two functional signal lines 122 are electrically connected through a second type connection line 102. In this way, the number of connection lines arranged around the functional component area DA can be reduced, and the width of the first non-display area NA1 outside the functional component area DA can be reduced.

[0103] Or, if Fig.18 As shown, Fig.18 A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention, wherein M=N=2, that is, the display panel includes two functional signal lines 122 corresponding to the functional component area DA, and the two functional signal lines 122 are electrically connected through two second-type connecting lines 102. Such a configuration allows the functional signal lines 122 located on both sides of the functional component area DA along the first direction h1 to be connected through more branches, which is beneficial to reducing the signal attenuation of the functional signal during the transmission process.

[0104] When the first type signal line 11 is set to include the light emitting control signal line EM, the first scanning control signal line SN1, the third scanning control signal line SN2 and the fourth scanning control signal line SP*, exemplarily, Fig.19 As shown, Fig.19 A schematic diagram of a partial area of ​​another display panel provided in an embodiment of the present invention, wherein along the second direction h2, the first scan control signal line SN1, the second scan control signal line SP, the third scan control signal line SN2, the light emitting control signal line EM, the fourth scan control signal line SP*, the second reset signal line Ref2, the adjustment signal line DVH and the first reset signal line Ref1 are arranged in sequence.

[0105] Optional, such as Fig. 20 As shown, Fig. 20 A cross-sectional schematic diagram of a display panel provided in an embodiment of the present invention includes a first metal layer T0, a second metal layer T1, a third metal layer TC, a fourth metal layer TG and a fifth metal layer T2 stacked along the thickness direction of the display panel.

[0106] like Fig. 20 As shown, Fig. 20 A cross-sectional schematic diagram of a display panel provided in an embodiment of the present invention, wherein the display panel further comprises a first semiconductor layer I1 and a second semiconductor layer I2. Optionally, the first semiconductor layer I1 comprises polycrystalline silicon, and the second semiconductor layer I2 comprises indium gallium zinc oxide. For example, Fig. 20 As shown, the third transistor M3 includes a first gate G31 and a second gate G32 arranged along the thickness direction of the display panel. Along the thickness direction of the display panel, the active layer of the third transistor M3 is located on the second semiconductor layer I2, and the second semiconductor layer I2 is located between the first gate G31 and the second gate G32. The dual gate arrangement including the first gate G31 and the second gate G32 is beneficial to improving the working performance of the third transistor M3. For example, Fig. 20 As shown, the first gate G31 is located in the fourth metal layer TG, and the second gate G32 is located in the third metal layer TC.

[0107] For example, Fig. 20 As shown, the display panel further includes a sixth metal layer T3 and a seventh metal layer TR. Exemplarily, the seventh metal layer TR can be used to form an electrode of a light emitting element.

[0108] Optional, such as Fig.21 As shown, Fig.21A cross-sectional schematic diagram of a display panel provided by an embodiment of the present invention, wherein the first scan control signal line SN1 includes a first sub-line X1 and a second sub-line X2, wherein the first sub-line X1 is located in the third metal layer TC, and the second sub-line X2 is located in the fourth metal layer TG. The first sub-line X1 is electrically connected to the first gate G31 of the third transistor M3, and the second sub-line X2 is electrically connected to the second gate G32 of the third transistor M3. The first sub-line X1 and the second sub-line X2 are located in the non-display area ( Fig.21 That is, the first scan control signal line SN1 includes a first sub-line X1 and a second sub-line X2 connected in parallel.

[0109] Optional, such as Fig.21 As shown, the second scan control signal line SP is located in the second metal layer T1.

[0110] For example, continue to refer to Fig. 20 As shown, the fifth transistor M5 includes a first gate G51 and a second gate G52 arranged along the thickness direction of the display panel. Along the thickness direction of the display panel, the active layer I5 of the fifth transistor M5 is located between the first gate G51 and the second gate G52. The dual gate arrangement including the first gate G51 and the second gate G52 is beneficial to improving the working performance of the fifth transistor M5. For example, Fig. 20 As shown, the first gate G51 is located in the fourth metal layer TG, and the second gate G52 is located in the third metal layer TC.

[0111] Correspondingly, such as Fig.21 As shown, the third scan control signal line SN2 includes a first sub-line X1 and a second sub-line X2 connected in parallel, the first sub-line X1 is located in the third metal layer TC, and the second sub-line X2 is located in the fourth metal layer TG.

[0112] Optional, such as Fig.21 As shown, the light emitting control signal line EM, the fourth scanning control signal line SP* and the first reset signal line Ref1 are located in the second metal layer T1.

[0113] For example, Fig.21 As shown, in an embodiment of the present invention, the second reset signal line Ref2 can be set in the fifth metal layer T2. Exemplarily, the fifth metal layer T2 may include a material with good conductivity. In an embodiment of the present invention, by setting the second reset signal line Ref2 in the fifth metal layer T2, the resistance of the second reset signal line Ref2 can be reduced, which is beneficial to the signal transmission on the second reset signal line Ref2. Exemplarily, the material of the fifth metal layer T2 includes one or more of molybdenum, titanium, aluminum, copper, etc. Optionally, the fifth metal layer T2 includes titanium aluminum titanium.

[0114] For example, Fig.21As shown, the above-mentioned adjustment signal line DVH is located in the fourth metal layer TG.

[0115] Exemplarily, when the above-mentioned first lap joints 51 are provided, for example, Fig. 22 As shown, Fig. 22 This is an enlarged schematic diagram of a partial area of ​​a display panel provided by an embodiment of the present invention. In the embodiment of the present invention, a first bonding wire 51 electrically connected to the first scan control signal line SN1, a first bonding wire 51 electrically connected to the third scan control signal line SN2, a first bonding wire 51 electrically connected to the light emitting control signal line EM, a first bonding wire 51 electrically connected to the fourth scan control signal line SP*, a first bonding wire 51 electrically connected to the adjustment signal line DVH, and a first bonding wire 51 electrically connected to the first reset signal line Ref1 can all be arranged in the fifth metal layer T2. In this way, the resistance of each first bonding wire 51 can be reduced. Fig. 22 In the figure, different fill patterns represent different metal layers.

[0116] For example, Fig. 22 As shown, in the embodiment of the present invention, the first bonding line 51 electrically connected to the second reset signal line Ref2 can be disposed in the first metal layer T0 different from the fifth metal layer T2.

[0117] Or, if Fig.23 As shown, Fig.23 Another enlarged schematic diagram of a partial area of ​​a display panel provided as an example of the present invention, the embodiment of the present invention can also set the first bonding wire 51 electrically connected to the second reset signal line Ref2 on the above-mentioned fifth metal layer T2 with good conductivity, that is, the first bonding wire 51 electrically connected to the second reset signal line Ref2 is set on the same layer as other first bonding wires 51 to reduce the resistance of the first bonding wire 51 electrically connected to the second reset signal line Ref2 and simplify the manufacturing process of the display panel.

[0118] Exemplarily, when the above-mentioned first connection lines 10 are arranged, the embodiment of the present invention may, for example, arrange the above-mentioned second-type connection lines 102 in the fourth metal layer TG. Optionally, along a direction perpendicular to the plane where the display panel is located, the second-type connection lines 102 may at least partially overlap with the routing lines located in the second metal layer T1 to reduce the space occupied by the connection lines.

[0119] For example, along the second direction h2, the embodiment of the present invention can make at least part of the first connection lines 10 alternately distributed on at least two metal layers. In this way, while ensuring good insulation of the first connection lines 10 transmitting different signals, the distance between two first connection lines 10 located in different metal layers can be set to be smaller, and when the first connection lines 10 are set in the first non-display area NA1 set around the functional component area DA, the width of the first non-display area NA1 can be reduced.

[0120] Exemplarily, the embodiment of the present invention can set the width of the first connecting wire 10 located in one of the metal layers to 1.6μm, and set the width of the first connecting wire 10 located in the other metal layer to 1.7μm. The distance between two adjacent first connecting wires 10 in the two metal layers is set to 1.6μm or 1.5um. For example, in the above two metal layers, the line widths of the alternately arranged first connecting wires 10 are 1.6μm and 1.7μm, respectively, that is, the first connecting wires with a line width of 1.6um and the first connecting wires with a line width of 1.7um are alternately arranged; the line spacings between the two adjacent first connecting wires 10 that are alternately arranged are 1.6um and 1.5um, respectively, that is, the line spacing of 1.6um and the line spacing of 1.5um are alternately arranged. In this way, the alternately arranged first connecting wires are set to different line widths and different line spacings, so as to achieve load uniformity of signal lines set in different film layers.

[0121] Optionally, in the embodiment of the present invention, the first type of connection line 101 corresponding to the first scan control signal line SN1, the first type of connection line 101 corresponding to the light emitting control signal line EM, the first type of connection line 101 corresponding to the third scan control signal line SN2, and the first type of connection line 101 corresponding to the fourth scan control signal line SP* can be respectively arranged on the second metal layer T1 and the third metal layer TC. Optionally, in the embodiment of the present invention, the first type of connection line 101 corresponding to the first scan control signal line SN1, the light emitting control signal line EM, the first type of connection line 101 corresponding to the third scan control signal line SN2, and the first type of connection line 101 corresponding to the fourth scan control signal line SP* can be alternately routed on the second metal layer T1 and the third metal layer TC.

[0122] Optionally, the embodiment of the present invention can set the line width of the first type of connecting line 101 located on the second metal layer T1 to 1.6μm, set the line width of the first type of connecting line 101 located on the third metal layer TC to 1.7μm, and set the spacing between the orthographic projections of the first type of connecting line 101 located on the second metal layer T1 and the adjacent first type of connecting line 101 located on the third metal layer TC on the plane where the display panel is located to 1.6μm.

[0123] Exemplary, combined Fig. 22 and Fig.24As shown, Fig.24 A cross-sectional schematic diagram of a first connection line provided in an embodiment of the present invention, wherein a first type of connection line 101 corresponding to a first scan control signal line SN1, a second type of connection line 102 corresponding to one of the second scan control signal lines SP, a first type of connection line 101 corresponding to a third scan control signal line SN2, a first type of connection line 101 corresponding to a light emitting control signal line EM, a first type of connection line 101 corresponding to a fourth scan control signal line SP*, a second type of connection line 102 corresponding to another second scan control signal line SP, a first type of connection line 101 corresponding to an adjustment signal line DVH, and a first type of connection line 101 corresponding to a first reset signal line Ref1 are alternately arranged in the fourth metal layer TG and the second metal layer T1. In a direction perpendicular to the plane where the display panel is located, the distance between the fourth metal layer TG and the second metal layer T1 is relatively large. The embodiment of the present invention selects these two metal layers to set the above-mentioned first connection lines 10, which is conducive to reducing the crosstalk between the first connection lines 10 transmitting different signals.

[0124] Exemplary, combined Fig. 22 and Fig.24 As shown, in the embodiment of the present invention, the second type connection line 102 corresponding to the second reset signal line Ref2 can be located in the first metal layer T0.

[0125] Exemplary, combined Fig.23 and Fig.25 As shown, Fig.25 A schematic diagram of a partial area of ​​another display panel provided in an embodiment of the present invention, wherein a first type of connection line 101 corresponding to a first scan control signal line SN1, a second type of connection line 102 corresponding to one of the second scan control signal lines SP, a first type of connection line 101 corresponding to a third scan control signal line SN2, a first type of connection line 101 corresponding to a light emitting control signal line EM, a first type of connection line 101 corresponding to a fourth scan control signal line SP*, a second type of connection line 102 corresponding to an adjustment signal line DVH, a second type of connection line 102 corresponding to a first reset signal line Ref1, a second type of connection line 102 corresponding to another second scan control signal line SP, and a second type of connection line 102 corresponding to a second reset signal line Ref2 are alternately arranged in the first metal layer T0, the second metal layer T1, and the fourth metal layer TG. In this arrangement, the space where the three metal layers are located can be fully utilized to avoid setting too many connection lines in the same metal layer. Within a certain space, the distance between two adjacent first connection lines in the same metal layer can be increased, which is beneficial to reducing crosstalk and the possibility of signal short circuit.

[0126] For example, continue to refer to Fig.19As shown, along the second direction h2, the first type of connecting line 101 corresponding to the first scanning control signal line SN1, the second type of connecting line 102 corresponding to one of the second scanning control signal lines SP_1 electrically connected to the same pixel driving circuit group 4, the first type of connecting line 101 corresponding to the third scanning control signal line SN2, the first type of connecting line 101 corresponding to the light-emitting control signal line EM, the first type of connecting line 101 corresponding to the fourth scanning control signal line SP*, the second type of connecting line 102 corresponding to another second scanning control signal line SP_2 electrically connected to the same pixel driving circuit group 4, the second type of connecting line 102 corresponding to the second reset signal line Ref2, the second type of connecting line 102 corresponding to the adjustment signal line DVH and the second type of connecting line 102 corresponding to the first reset signal line Ref1 are arranged in sequence.

[0127] For example, Fig.26 As shown, Fig.26 A schematic diagram of a partial area of ​​another display panel provided in an embodiment of the present invention, wherein along the second direction h2, a first type of connecting line 101 corresponding to a first scanning control signal line SN1, a second type of connecting line 102 corresponding to one of the second scanning control signal lines SP_1 electrically connected to the same pixel driving circuit group 4, a first type of connecting line 101 corresponding to the third scanning control signal line SN2, a first type of connecting line 101 corresponding to the light emitting control signal line EM, a first type of connecting line 101 corresponding to the fourth scanning control signal line SP*, a second type of connecting line 102 corresponding to the adjustment signal line DVH, a second type of connecting line 102 corresponding to the first reset signal line Ref1, a second type of connecting line 102 corresponding to another second scanning control signal line SP_2 electrically connected to the same pixel driving circuit group 4, and a second type of connecting line 102 corresponding to the second reset signal line Ref2 are arranged in sequence.

[0128] For example, see again Fig.11 As shown, the first type driving circuit 31 includes a first side driving circuit 311 and a second side driving circuit 312. Along the first direction h1, the display area AA is located between the first side driving circuit 311 and the second side driving circuit 312. At least part of the first type signal lines 11 is electrically connected to the first side driving circuit 311, and at least another part of the first type signal lines 11 is electrically connected to the second side driving circuit 312.

[0129] For example, Fig.11 As shown, the first side driving circuit 311 includes a first scanning control circuit SN1_V and a light emitting control driving circuit EM_V; the first scanning control circuit SN1_V is electrically connected to the first scanning control signal line SN1; the light emitting control driving circuit EM_V is electrically connected to the light emitting control signal line EM;

[0130] The second side driving circuit 312 includes a third scanning control circuit SN2_V and a fourth scanning control circuit SP*_V; the third scanning control circuit SN2_V is electrically connected to the third scanning control signal line SN2; the fourth scanning control circuit SP*_V is electrically connected to the fourth scanning control signal line SP*.

[0131] For example, Fig. 27 As shown, Fig. 27 A schematic diagram of a partial area of ​​another display panel provided in an embodiment of the present invention, wherein the display area AA further includes a plurality of second signal lines 2, at least a portion of the second signal lines 2 extends along the second direction h2; the plurality of second signal lines 2 are arranged along the first direction h1; the second signal lines 2 at least partially surround the functional component area DA. Exemplarily, the second signal lines 2 include a first power supply voltage line PVDD.

[0132] For example, Fig. 27 As shown, the second signal line 2 includes a second connection line 20, and the second connection line 20 connects the second signal lines 2 located on both sides of the functional component area DA.

[0133] For example, Fig. 27 As shown, at least a portion of the second connection line 20 is located in the display area AA.

[0134] For example, Fig. 27 As shown, at least a portion of the second connection line 20 is located between the functional component area DA and the second non-display area NA2 arranged along the first direction h1; the second non-display area NA2 at least partially surrounds the display area AA. And / or, at least a portion of the second connection line 20 is located between two adjacent functional component areas DA.

[0135] For example, Fig.28 As shown, Fig.28 This is a schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention, where part of the second connection line 20 is located in the first non-display area NA1 surrounding the functional component area DA. Exemplarily, at least part of the second connection line 20 may extend along the edge of the functional component area DA.

[0136] For example, Fig.29 As shown, Fig.29 A schematic diagram of a partial area of ​​another display panel provided in an embodiment of the present invention, the display panel also includes a second non-display area NA2 at least partially surrounding the display area AA, the second non-display area NA2 includes a connecting bus 8, and the connecting bus 8 is electrically connected to multiple second signal lines 2 located in the display area AA.

[0137] For example, Fig.30 As shown, Fig.30A schematic diagram of a partial area of ​​another display panel provided by an embodiment of the present invention, wherein a functional component area DA includes a first sub-functional component area DA11 and a second sub-functional component area DA12 arranged along a first direction h1. Fig.30 As shown, the display panel includes a first functional component area DA1 and a second functional component area DA2, along a first direction h1, the length of the first functional component area DA1 is greater than the length of the second functional component area DA2. The first functional component area DA1 includes a first sub-functional component area DA11 and a second sub-functional component area DA12.

[0138] Exemplarily, in the embodiment of the present invention, at least part of the second signal line 2 is arranged between the first sub-functional component area DA11 and the second sub-functional component area DA12. Exemplarily, the second signal line 2 located between the first sub-functional component area DA11 and the second sub-functional component area DA12 may extend along the second direction h2, or may extend along other directions, for example, along the edge of the first sub-functional component area DA11 or the second sub-functional component area DA12, which is not limited in the embodiment of the present invention.

[0139] Exemplarily, the area between the first sub-functional component area DA11 and the second sub-functional component area DA12 is a non-screen display area that is not used for screen display. The embodiment of the present invention can make reasonable use of this part of the non-screen display area by allowing part of the second signal line 2 to extend between the first sub-functional component area DA11 and the second sub-functional component area DA12. Moreover, this arrangement can also reduce the number of second connecting lines 20 arranged outside the first sub-functional component area DA11 and surrounding the first sub-functional component area DA11, which is conducive to reducing the difference in extension length between the second connecting lines 20 arranged outside the first sub-functional component area DA11 and surrounding the first sub-functional component area DA11 and the second connecting lines 20 between the first sub-functional component area DA11 and the second sub-functional component area DA12, which can effectively reduce the load difference between different second connecting lines 20 and help improve load uniformity.

[0140] The embodiment of the present invention further provides a display device, such as Fig.31 As shown, Fig.31 Schematic diagram of a display device provided in an embodiment of the present invention, the display device includes the above-mentioned display panel 100. The specific structure of the display panel 100 has been described in detail in the above-mentioned embodiment, and will not be repeated here. Fig.31 The display device shown is for illustration only, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a laptop computer, an e-reader or a television.

[0141] Exemplarily, the functional component area DA includes optical components, and the optical components include a camera, an iris sensor, and the like.

[0142] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A display panel, characterized in that: It comprises a display area and at least two functional component areas, wherein the display area at least partially surrounds the functional component area, and along a first direction, at least two of the functional component areas at least partially overlap, and sub-pixels are arranged in the display area between at least two of the functional component areas; The display area includes a plurality of first signal lines, at least a portion of the first signal lines extending along the first direction; the plurality of first signal lines are arranged along a second direction, the second direction intersecting the first direction; The first signal lines include first-type signal lines and second-type signal lines; The first type of signal line at least partially surrounds at least two of the functional component areas; along the first direction, the second type of signal line at least partially surrounds one of the functional component areas and is disconnected at both sides of another functional area.

2. The display panel according to claim 1, characterized in that: The display panel includes a virtual line extending along the second direction, and along the first direction, the display area includes a first edge and a second edge opposite to each other, a distance from the first edge to the virtual line is d1, and a distance from the second edge to the virtual line is d2, wherein 0.9≤d1 / d2≤1.1; The at least two functional component areas include a first functional component area and a second functional component area, the dummy line passes through the first functional component area; along the first direction, the second type signal line is disconnected at both sides of the first functional component area.

3. The display panel according to claim 1, characterized in that: The at least two functional component areas include a first functional component area and a second functional component area. Along the first direction, the distance between the first functional component area and the edge of the display area is A, the length of the display area is B, B / 4≤A≤B / 2, Along the first direction, the second-type signal lines are disconnected at both sides of the first functional component area.

4. The display panel according to claim 1, characterized in that: The at least two functional component areas include a first functional component area and a second functional component area; along the first direction, the length of the first functional component area is greater than the length of the second functional component area; along the first direction, the second type signal line is disconnected at both sides of the first functional component area.

5. The display panel according to claim 1, characterized in that: The first signal line includes a first connection line, and the first connection line electrically connects the first signal lines located on both sides of at least one of the functional component areas; The first connecting wires include first-type connecting wires, the first-type signal wires include the first-type connecting wires, and the first-type connecting wires are electrically connected to the first-type signal wires located on both sides of the functional component area; The first connection lines include second-type connection lines, the second-type signal lines include second-type connection lines, and the second-type connection lines connect the second-type signal lines located on both sides of one of the functional component areas.

6. The display panel according to claim 5, characterized in that: The display panel further includes a first non-display area between the functional component area and the display area; at least a portion of the first connection line is located in the first non-display area.

7. The display panel according to claim 5, characterized in that: At least a portion of the first connecting line is located in the display area.

8. The display panel according to claim 7, characterized in that: The first connecting line includes a first line segment and a second line segment that are electrically connected, and the first line segment and the second line segment extend in different directions.

9. The display panel according to claim 5, characterized in that: The display panel further comprises a second non-display area, wherein the second non-display area is arranged on a side of the display area away from the functional component area; At least a portion of the first connecting line is located in the second non-display area.

10. The display panel according to claim 5, characterized in that: The display panel includes a plurality of first signal lines corresponding to the functional component area. Along the second direction, a plurality of first connection lines included in the plurality of first signal lines are located at a same side of the functional component area.

11. The display panel according to claim 5, characterized in that: The display panel includes a plurality of first signal lines corresponding to the functional component area. Along the second direction, the first connection lines included in a portion of the first signal lines are located on one side of the functional component area, and the first connection lines included in another portion of the first signal lines are located on the other side of the functional component area.

12. The display panel according to claim 5, characterized in that: The second type of signal lines include control signal lines; The display panel further includes a second non-display area, wherein the second non-display area at least partially surrounds the display area; The second non-display area includes: A first type of driving circuit, electrically connected to the first type of signal line, and the first type of driving circuit is located at one side of the display area along the first direction; A second type of driving circuit is electrically connected to the control signal line and is arranged on both sides of the display area along the first direction.

13. The display panel according to claim 2, characterized in that: The display area includes a plurality of pixel driving circuit groups arranged along the second direction, the pixel driving circuit groups include at least two pixel driving circuit rows arranged along the second direction, and the pixel driving circuit rows include a plurality of pixel driving circuits arranged along the first direction; The first type of driving circuit comprises a plurality of cascaded first type driving units, and one first type of driving unit is electrically connected to at least two pixel driving circuits in the same pixel driving circuit group through at least two first type signal lines; The display panel further includes a first bonding wire, the first type signal lines electrically connected to at least two pixel driving circuit rows in the same pixel driving circuit row group are electrically connected to the same first bonding wire, and the first bonding wire is electrically connected to the first type connecting wire.

14. The display panel according to claim 12, characterized in that: The display area includes a pixel driving circuit, the pixel driving circuit includes a driving transistor, and: A light emitting control module, a control end of which is electrically connected to the light emitting control signal line; A gate reset module, a control end of which is electrically connected to the first scan control signal line, and an input end of which is electrically connected to the first reset signal line; A data writing module, a control end of which is electrically connected to the second scanning control signal line; A threshold compensation module, a control end of which is electrically connected to the third scanning control signal line; The first type of signal line includes at least one of the light emitting control signal line, the first scanning control signal line, and the third scanning control signal line; The control signal lines in the second-type signal lines include the second scanning control signal lines.

15. The display panel according to claim 5, characterized in that: The display area includes a pixel driving circuit; The second type of signal lines further include functional signal lines, which are used to transmit constant signals and are electrically connected to at least part of the input terminals of the pixel driving circuit.

16. The display panel according to claim 5, characterized in that: The display area includes a pixel driving circuit, the pixel driving circuit includes a driving transistor, and a gate reset module, an input end of which is electrically connected to a first reset signal line; The second-type signal line includes the first reset signal line.

17. The display panel according to claim 5, characterized in that: The display area includes a pixel driving circuit, the pixel driving circuit includes a driving transistor and a light emitting element reset module, and an input end of the light emitting element reset module is electrically connected to a second reset signal line; The second type of signal lines includes the second reset signal line.

18. The display panel according to claim 5, characterized in that: The display area includes a pixel driving circuit, the pixel driving circuit includes a driving transistor and a bias adjustment module, and the input end of the bias adjustment module is electrically connected to the adjustment signal line; The second type of signal lines include the adjustment signal lines.

19. The display panel according to claim 15, characterized in that: The second type of signal lines includes N functional signal lines; The N functional signal lines are electrically connected to the M second-type connection lines, wherein 1≤M≤N; M and N are both integers.

20. The display panel according to claim 14, characterized in that: The first type of signal lines include the light emitting control signal line, the first scanning control signal line, and the third scanning control signal line; Along the second direction, the first scan control signal line, the second scan control signal line, the third scan control signal line, the light emitting control signal line, the second reset signal line, the adjustment signal line and the first reset signal line are arranged in sequence.

21. The display panel according to claim 14, characterized in that: The display panel includes a first metal layer, a second metal layer, a third metal layer, a fourth metal layer and a fifth metal layer stacked along a thickness direction of the display panel; The first scan control signal line includes a first sub-line and a second sub-line connected in parallel, the first sub-line is located in the third metal layer, and the second sub-line is located in the fourth metal layer; The second scanning control signal line is located in the second metal layer; The third scan control signal line includes a first sub-line and a second sub-line connected in parallel, the first sub-line is located in the third metal layer, and the second sub-line is located in the fourth metal layer; The light emitting control signal line is located in the second metal layer; The first reset signal line is located in the second metal layer.

22. The display panel according to claim 21, characterized in that: The pixel driving circuit further includes a light emitting element reset module and a bias adjustment module, wherein the light emitting element reset module is electrically connected to the second reset signal line; the bias adjustment module is electrically connected to the fourth scan control signal line and the adjustment signal line; The fourth scanning control signal line is located in the second metal layer; The second reset signal line is located in the fifth metal layer; The regulating signal line is located in the fourth metal layer.

23. The display panel according to claim 22, characterized in that: The first type of signal lines include first type of connecting lines, and the first type of connecting lines connect the first type of signal lines located on both sides of the functional component area; The display area includes a plurality of pixel driving circuit groups arranged along the second direction, the pixel driving circuit groups include at least two pixel driving circuit rows arranged along the second direction, and the pixel driving circuit rows include a plurality of pixel driving circuits arranged along the first direction; The first type of driving circuit comprises a plurality of cascaded first type driving units, and one first type of driving unit is electrically connected to at least two pixel driving circuits in the same pixel driving circuit group through at least two first type signal lines; The display panel further comprises a first bonding wire, wherein the first type of signal lines electrically connected to at least two of the pixel driving circuit rows in the same pixel driving circuit row group are electrically connected to the same first bonding wire, and the first bonding wire is electrically connected to the first type of connecting wire; The first overlapping wire electrically connected to the first scanning control signal line, the first overlapping wire electrically connected to the third scanning control signal line, the first overlapping wire electrically connected to the light emitting control signal line, the first overlapping wire electrically connected to the fourth scanning control signal line, the first overlapping wire electrically connected to the adjustment signal line and the first overlapping wire electrically connected to the first reset signal line are all located in the fifth metal layer.

24. The display panel according to claim 23, characterized in that: The first bonding wire electrically connected to the second reset signal line is located in the first metal layer.

25. The display panel according to claim 23, characterized in that: The first bonding wire electrically connected to the second reset signal line is located in the fifth metal layer.

26. The display panel according to claim 22, characterized in that: Along the second direction, at least part of the first connecting lines are alternately distributed on at least two metal layers.

27. The display panel according to claim 26, characterized in that: The first type of connecting line corresponding to the first scan control signal line, the second type of connecting line corresponding to one of the second scan control signal lines, the first type of connecting line corresponding to the third scan control signal line, the first type of connecting line corresponding to the light-emitting control signal line, the first type of connecting line corresponding to the fourth scan control signal line, the second type of connecting line corresponding to another second scan control signal line, the first type of connecting line corresponding to the adjustment signal line and the first type of connecting line corresponding to the first reset signal line are alternately arranged in the fourth metal layer and the second metal layer.

28. The display panel according to claim 27, characterized in that: The second-type connection line corresponding to the second reset signal line is located in the first metal layer.

29. The display panel according to claim 26, characterized in that: The first type of connecting line corresponding to the first scan control signal line, the second type of connecting line corresponding to one of the second scan control signal lines, the first type of connecting line corresponding to the third scan control signal line, the first type of connecting line corresponding to the light-emitting control signal line, the first type of connecting line corresponding to the fourth scan control signal line, the second type of connecting line corresponding to the adjustment signal line, the second type of connecting line corresponding to the first reset signal line, the second type of connecting line corresponding to another second scan control signal line and the second type of connecting line corresponding to the second reset signal line are alternately arranged in the first metal layer, the second metal layer and the fourth metal layer.

30. The display panel according to claim 26, characterized in that: The width of the first connecting line in one of the metal layers is 1.6 μm; the width of the first connecting line in the other metal layer is 1.7 μm; the distance between two adjacent first connecting lines in the two metal layers is 1.6 μm or 1.5 um.

31. The display panel according to claim 22, characterized in that: Along the second direction, the first type of connection line corresponding to the first scanning control signal line, the second type of connection line corresponding to one of the second scanning control signal lines electrically connected to the same pixel driving circuit row group, the first type of connection line corresponding to the third scanning control signal line, the first type of connection line corresponding to the light emitting control signal line, the first type of connection line corresponding to the fourth scanning control signal line, the second type of connection line corresponding to another second scanning control signal line electrically connected to the same pixel driving circuit row group, the second type of connection line corresponding to the second reset signal line, the second type of connection line corresponding to the adjustment signal line and the second type of connection line corresponding to the first reset signal line are arranged in sequence.

32. The display panel according to claim 22, characterized in that: Along the second direction, the first type of connection line corresponding to the first scanning control signal line, the second type of connection line corresponding to one of the second scanning control signal lines electrically connected to the same pixel driving circuit row group, the first type of connection line corresponding to the third scanning control signal line, the first type of connection line corresponding to the light emitting control signal line, the first type of connection line corresponding to the fourth scanning control signal line, the second type of connection line corresponding to the adjustment signal line, the second type of connection line corresponding to the first reset signal line, the second type of connection line corresponding to another second scanning control signal line electrically connected to the same pixel driving circuit row group, and the second type of connection line corresponding to the second reset signal line are arranged in sequence.

33. The display panel according to claim 12, characterized in that: The first type of driving circuit includes a first side driving circuit and a second side driving circuit, and along the first direction, the display area is located between the first side driving circuit and the second side driving circuit; At least a portion of the first-type signal lines is electrically connected to the first-side driving circuit, and at least another portion of the first-type signal lines is electrically connected to the second-side driving circuit.

34. The display panel according to claim 33, characterized in that: The first side driving circuit includes a first scanning control circuit and a light emitting control driving circuit; the first scanning control circuit is electrically connected to the first scanning control signal line; the light emitting control driving circuit is electrically connected to the light emitting control signal line; The second side driving circuit includes a third scanning control circuit and a fourth scanning control circuit; the third scanning control circuit is electrically connected to the third scanning control signal line; the fourth scanning control circuit is electrically connected to the fourth scanning control signal line.

35. The display panel according to claim 1, characterized in that: The display area further includes a plurality of second signal lines, at least part of which extends along the second direction; the plurality of second signal lines are arranged along the first direction; and the second signal lines at least partly surround the functional component area.

36. The display panel according to claim 35, characterized in that: The second signal line includes a first power supply voltage line.

37. The display panel according to claim 35, characterized in that: The second signal line includes a second connection line connecting the second signal lines located at both sides of the functional component area.

38. The display panel according to claim 37, characterized in that: At least a portion of the second connecting line is located in the display area.

39. The display panel according to claim 37, characterized in that: At least a portion of the second connection line is located between the functional component area and the second non-display area along the first direction; the second non-display area at least partially surrounds the display area; and / or, At least a portion of the second connecting line is located between two adjacent functional component areas.

40. The display panel according to claim 35, characterized in that The display panel further includes a second non-display area at least partially surrounding the display area, the second non-display area includes a connection bus, and the connection bus is electrically connected to a plurality of second signal lines located in the display area.

41. The display panel according to claim 36, characterized in that: One of the functional component areas includes a first sub-functional component area and a second sub-functional component area arranged along the first direction.

42. The display panel according to claim 41, characterized in that At least a portion of the second signal line is disposed between the first sub-functional component area and the second sub-functional component area.

43. A display device, characterized in that: A display panel comprising any one of claims 1-42.

Images