Display panel and display device

Abstract

According to the display panel and the display device provided by the embodiment of the invention, the display panel comprises the driving substrate and the switching electrode group, and the driving substrate comprises the connecting electrodes arranged in the first direction. The switching electrode group is located on the driving substrate and corresponds to the connecting electrode group. The switching electrode group comprises switching electrodes correspondingly connected with the connecting electrodes. Wherein at least one switching electrode in the same switching electrode group exceeds the corresponding connecting electrode along the first direction towards the direction deviating from the switching electrode group. The switching electrodes are expanded in the direction away from the switching electrode group along the first direction, the switching electrodes in the same group are set to be aligned with anodes and cathodes of large-size light-emitting devices in size and position, and the switching electrodes in the same group are correspondingly and electrically connected with the connecting electrodes in the same group, so that the utilization rate of the existing driving substrate is increased; resource waste of an existing driving substrate is avoided, and the preparation cost of the driving substrate is reduced.

Description

TECHNICAL FIELD

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

[0002] In the preparation of the display device, when installing the light emitting device on the existing substrate, there is a case that the size of the connecting electrode on the substrate used does not match the size of the light emitting device to be installed, such as the size of the light emitting device to be installed is larger, and the size of the connecting electrode on the existing substrate is insufficient. At this time, re-preparing a substrate with a suitable size or adjusting the size of the light emitting device will affect the cost of preparing the substrate and the display needs. Therefore, how to improve the usability of the existing substrate for light emitting devices of different sizes is of great significance to reduce the preparation cost of the substrate and achieve the display needs. SUMMARY

[0003] Therefore, the present application provides a display panel and a display device to solve the above problems.

[0004] In a first aspect, an embodiment of the present application provides a display panel, the display panel comprising:

[0005] The driving substrate comprises a plurality of connection electrode groups, each connection electrode group comprising connection electrodes arranged along a first direction, and the connection electrodes in the same group have a first distance therebetween;

[0006] The adapter electrode group is located on the driving substrate and corresponds to the connection electrode group; the adapter electrode group comprises adapter electrodes corresponding to the connection electrodes, respectively;

[0007] Among the same adapter electrode group, at least one adapter electrode exceeds its corresponding connection electrode in the first direction towards a direction away from the adapter electrode group.

[0008] In a second aspect, an embodiment of the present application provides a display device comprising the display panel provided in the first aspect.

[0009] In an embodiment of the present application, at least one transition electrode in the same transition electrode group is arranged to extend beyond its corresponding connection electrode along the first direction away from the transition electrode group. This facilitates the expansion of the prepared transition electrode along the first direction away from the transition electrode group, thereby increasing the width of the same transition electrode group in the first direction. When the width can be increased to a value close to the size of the light-emitting device in the first direction, the anode and cathode of the light-emitting device can be aligned with the transition electrodes in the same group, so that the light-emitting device is first electrically connected to the transition electrode, and then the transition electrode is used as an intermediary to connect the light-emitting device to the connection electrode, thereby smoothly transmitting the light-emitting drive signal generated by the driver substrate to the light-emitting device, thereby achieving light emission of the light-emitting device. It should be noted that, optionally, if the width of the electrode of the light-emitting device in the second direction is also large, the width of the transition electrode in the second direction can also be appropriately increased to facilitate increasing the alignment area between the electrode of the light-emitting device and the transition electrode. The second direction is a direction intersecting the first direction, and both the first direction and the second direction are parallel to the plane of the display panel. In addition, at the position on the driving substrate where the large-size light-emitting device needs to be electrically connected, a transfer electrode group is added, and the size and position of the transfer electrodes in the same group are set to be aligned with the anode and cathode of the large-size light-emitting device, and the transfer electrodes in the same group are electrically connected to the corresponding connection electrodes in the same group. This is beneficial to avoid re-preparing the driving substrate, improve the utilization rate of the existing driving substrate, avoid waste of resources of the existing driving substrate and reduce the preparation cost of the driving substrate, and is beneficial to realize the electrical connection between the driving substrate and the large-size light-emitting device, and realize the display needs of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0011] Figure 1 A schematic plan view of a display panel provided in an embodiment of the present application;

[0012] Figure 2 A method provided in the embodiment of this application Figure 1 A partial schematic diagram of the middle area E1;

[0013] Figure 3 A method provided in the embodiment of this application Figure 2 Schematic diagram of the cross section along the A-A' direction;

[0014] Figure 4 Another embodiment of the present application is Figure 1 A partial schematic diagram of the middle area E1;

[0015] Figure 5 A kind of Figure 4 The schematic diagram of section along B-B' direction in the embodiment of the present application is shown in the figure.

[0016] Figure 6 Another kind of Figure 1 The schematic diagram of section along B-B' direction in the embodiment of the present application is shown in the figure.

[0017] Figure 7 A kind of Figure 6 The schematic diagram of section along C-C' direction in the embodiment of the present application is shown in the figure.

[0018] Figure 8 Another kind of Figure 1 The schematic diagram of section along C-C' direction in the embodiment of the present application is shown in the figure.

[0019] Figure 9 A kind of Figure 8 The schematic diagram of section along D-D' direction in the embodiment of the present application is shown in the figure.

[0020] Figure 10 Another kind of Figure 1 The schematic diagram of section along D-D' direction in the embodiment of the present application is shown in the figure.

[0021] Figure 11 A kind of Figure 10 The schematic diagram of section along D-D' direction in the embodiment of the present application is shown in the figure.

[0022] Figure 12 A kind of Figure 10 The schematic diagram of section along D-D' direction in the embodiment of the present application is shown in the figure.

[0023] Figure 13 Another kind of Figure 1 The schematic diagram of section along D-D' direction in the embodiment of the present application is shown in the figure.

[0024] Figure 14 A kind of Figure 13 The schematic diagram of section along D-D' direction in the embodiment of the present application is shown in the figure.

[0025] Figure 15 Another kind of Figure 1 The schematic diagram of section along D-D' direction in the embodiment of the present application is shown in the figure.

[0026] Figure 16 A kind of Figure 15 The schematic diagram of section along D-D' direction in the embodiment of the present application is shown in the figure.

[0027] Figure 17 Another kind of Figure 1 The schematic diagram of section along D-D' direction in the embodiment of the present application is shown in the figure.

[0028] Figure 18 A schematic view of a display device provided by an embodiment of the present application Figure 17 A partial view of region E5 in the embodiment of the present application

[0029] Figure 19 Another schematic view of a display device provided by an embodiment of the present application Figure 1 A partial view of region E1 in the embodiment of the present application

[0030] Figure 20 A schematic view of a display device provided by an embodiment of the present application Figure 19 A partial view of region E6 in the embodiment of the present application

[0031] Figure 21 Another schematic view of a display device provided by an embodiment of the present application Figure 1 A partial view of region E1 in the embodiment of the present application

[0032] Figure 22 A schematic view of a display device provided by an embodiment of the present application Figure 21 A schematic view of a display device provided by an embodiment of the present application

[0033] Figure 23 Another schematic view of a display device provided by an embodiment of the present application Figure 2 A schematic view of a display device provided by an embodiment of the present application

[0034] Figure 24 A schematic view of a display device provided by an embodiment of the present application DETAILED DESCRIPTION

[0035] In order to better understand the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the drawings.

[0036] It should be clear that the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0037] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0038] It should be understood that the term "and / or" used herein only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0039] In the description of this specification, it is necessary to understand that the words "substantially", "approximately", "approximately", "about", "roughly", "generally" and the like described in the claims and embodiments of this application refer to what can be generally recognized within a reasonable process operation range or tolerance range, rather than an exact value.

[0040] It should be understood that although the terms first, second, etc. may be used to describe distances, directions, switching electrodes, etc. in the embodiments of the present application, these should not be limited to these terms. These terms are only used to distinguish distances, directions, switching electrodes, etc. from each other. For example, without departing from the scope of the embodiments of the present application, the first distance may also be referred to as the second distance, and similarly, the second distance may also be referred to as the first distance. The applicant of this case has provided a solution to the problems existing in the prior art through careful and in-depth research.

[0041] Figure 1 A schematic plan view of a display panel provided in an embodiment of the present application is shown. Figure 2 A method provided in the embodiment of this application Figure 1 A partial schematic diagram of the middle area E1, Figure 3 A method provided in the embodiment of this application Figure 2 Schematic diagram of the cross section along the A-A' direction.

[0042] The embodiment of the present application provides a display panel AA, combined with Figures 1-3 As shown, the display panel AA includes a driving substrate 100, and the driving substrate 100 includes a plurality of connecting electrode groups 10. The connecting electrode groups 10 include connecting electrodes 101 arranged along a first direction X11, and a first distance W1 is present between the connecting electrodes 101 in the same group. In the embodiment of the present application, the display panel AA is taken as an example of a display panel including a micro light-emitting diode (Micro LED) light-emitting device, and the connecting electrode 101 is taken as an example of an electrode on the driving substrate 100 that needs to be electrically connected to the light-emitting device. Of course, in some other embodiments, the connecting electrode 101 can also refer to an electrode on the driving substrate 100 that needs to be electrically connected to other external devices, such as external sensors, storage capacitors, and other devices.

[0043] When the connecting electrode 101 included on the driving substrate 100 can be used to electrically connect with the light-emitting device, the circuit included in the driving substrate 100 can be used to generate a light-emitting driving current. The circuit is electrically connected to the connecting electrode 101, so that the light-emitting device can receive the light-emitting driving current generated by the driving substrate 100 to achieve light emission.

[0044] Generally, the light emitting device includes an anode and a cathode, and the connection electrodes on the driving substrate are also arranged in part to be connected to the anode and in part to be connected to the cathode. The connection electrodes 101 in the same group have a first distance W1, and optionally, the connection electrodes 101 in the same group are electrically connected to the same light emitting device. The connection electrodes 101 in the same group include the connection electrode 101 electrically connected to the anode of the light emitting device and the connection electrode electrically connected to the cathode of the light emitting device. Generally, the connection electrodes 101 in the same group have a first distance W1, and the first distance W1 is a safe distance between the connection electrodes 101 in the same group. Moreover, if the distance between the anode and the cathode of the light emitting device in the first direction X1 is similar to the first distance W1, the alignment connection between the anode and the cathode of the light emitting device and the connection electrodes 101 on the driving substrate 100 can be achieved.

[0045] When the driving substrate 100 is prepared, a plurality of driving substrates 100 of a unified specification can be prepared, which is beneficial to reduce the preparation cost. However, the positions of the connection electrodes 101 on the driving substrate 100 which has been prepared and the first distance W1 between the connection electrodes 101 in the same group are also fixed. Therefore, if the light emitting device to be electrically connected on the driving substrate 100 is a large-size light emitting device, the distance between the anode and the cathode of the light emitting device in the first direction X1 is also large. When the large-size light emitting device is placed on the driving substrate, the anode and the cathode of the large-size light emitting device are not aligned with the connection electrodes 101 in the same group or the alignment area of the two is insufficient, which is not conducive to the good electrical connection between the light emitting device and the connection electrodes 101 in the same group. However, in order to electrically connect the large-size light emitting device, the driving substrate 100 needs to be prepared again, which is easy to waste the existing driving substrate 100 resources and is not conducive to reducing the preparation cost. Alternatively, in order to achieve the electrical connection between the light emitting device and the driving substrate 100, the position where the large-size light emitting device needs to be prepared is replaced by a light emitting device of a corresponding size which can be aligned and electrically connected, which is not conducive to achieving the light emitting needs of the display panel AA.

[0046] Therefore, in order to solve the problem that the large-size light emitting device can be electrically connected to the driving substrate 100, the display panel AA further includes a group of adapter electrodes 20, which is located on the driving substrate 100 and corresponds to the group of connection electrodes 10. Here, the correspondence can mean that the projections of the two in the direction perpendicular to the plane where the display panel AA is located at least partially coincide. Moreover, the group of adapter electrodes 20 includes adapter electrodes 201 corresponding to the connection electrodes 101, respectively. Figure 3As shown, the transition electrode group 20 includes transition electrodes 201 arranged along the first direction X1. Optionally, the number of transition electrodes 201 in the same transition electrode group 20 is the same as the number of connection electrodes 101 in the same connection electrode group 10. The transition electrodes 201 are electrically connected to the connection electrodes 101, which facilitates the transmission of the same electrical signal between the transition electrodes 201 and the connection electrodes 101. When the transition electrodes 201 are located on a side of the connection electrodes 101 away from the driving substrate 100, electrical connection to the light-emitting device can be achieved using the transition electrodes 201.

[0047] In the examples of this application, continue to refer to Figure 2 、 Figure 3 As shown, at least one transfer electrode 201 in the same transfer electrode group 20 is arranged to extend beyond its corresponding connecting electrode 101 along the first direction X1 toward a direction away from the transfer electrode group 20, which is conducive to achieving the expansion of the prepared transfer electrode 201 along the first direction X1 toward a direction away from the transfer electrode group 20, so that the width of the same transfer electrode group 20 in the first direction X1 is increased. When it can be increased to a size similar to that of the light-emitting device 30 in the first direction X1, the anode and cathode of the light-emitting device can be aligned with the transfer electrodes 201 in the same group, so that the light-emitting device is first electrically connected to the transfer electrode 201, and then the transfer electrode 201 is used as an intermediary to achieve the connection between the light-emitting device 30 and the connecting electrode 101, so that the light-emitting driving signal generated by the driving substrate 100 is smoothly transmitted to the light-emitting device, thereby achieving light emission of the light-emitting device. It should be noted that, optionally, if the width of the electrodes of the light-emitting device 30 in the second direction X2 is also relatively large, the width of the transition electrodes 201 in the second direction X2 may be appropriately increased to facilitate increasing the alignment area between the electrodes of the light-emitting device 30 and the transition electrodes 201. The second direction X2 is a direction intersecting the first direction X1, and both the first direction X1 and the second direction X2 are parallel to the plane of the display panel AA. Furthermore, at locations on the driver substrate 100 where electrical connection to a large-scale light-emitting device is required, a transition electrode group 20 is added. The size and position of the transition electrodes 201 in the same group are configured to align with the anode and cathode of the large-scale light-emitting device, and the transition electrodes 201 in the same group are electrically connected to the connection electrodes 101 in the same group. This avoids the need to re-manufacture the driver substrate 100, improves the utilization of the existing driver substrate 100, avoids waste of existing driver substrate 100 resources, and reduces the manufacturing cost of the driver substrate 100. Furthermore, it facilitates electrical connection between the driver substrate 100 and the large-scale light-emitting device, thereby meeting the display requirements of the display panel AA.

[0048] Figure 4 Another embodiment of the present application is Figure 1 A partial schematic diagram of the middle area E1, Figure 5 A method provided in the embodiment of this application Figure 4Schematic diagram of the cross section along the BB' direction.

[0049] In one embodiment of the present application, continue to combine Figures 1-3 As shown, there is a second distance W2 in the first direction X1 between the transition electrodes 201 in the same transition electrode group 20. The second distance W2 is greater than or equal to the first distance W1.

[0050] Alternatively, as Figure 2 、 Figure 3 As shown, in the same transition electrode group 20 and the same connection electrode group 10 that need to be aligned, the second distance W2 between the transition electrodes 201 in the same transition electrode group 20 in the first direction X1 is greater than the first distance W1 between the connection electrodes 101 in the same connection electrode group 10 in the first direction X1, that is, W1>W2. In combination with the above content, it can be seen that the transition electrode group 20 includes transition electrodes respectively connected to the connection electrodes 101. Then, in the direction perpendicular to the plane where the display panel AA is located, the transition electrodes 201 and the connection electrodes 101 at least partially overlap, and electrical connection can be achieved in the overlapping portion. In the embodiment of the present application, an example is taken where the number of the same transition electrode group 20 and the number of the same connection electrode group 10 both correspond to the anode and cathode of the light-emitting device being set to 2. When W1>W2, the transition electrode 201 exceeds its corresponding connection electrode 101 in the first direction X1 in a direction away from the transition electrode group 20 in which it is located. Furthermore, the side of the switching electrode 201 close to the other switching electrode 201 in the same group in the first direction X1 is not aligned with the side of the corresponding connecting electrode 101 close to the other connecting electrode 101 in the same group in the first direction X1. Figure 3 As shown, when setting the transfer electrode 201, the side of the transfer electrode 201 that is close to another transfer electrode 201 in the same group in the first direction X1 is away from the side of the corresponding connection electrode 101 that is close to another connection electrode 101 in the same group in the first direction X1, so that the transfer electrode 201 does not need to completely cover the corresponding connection electrode 101, and it is sufficient to achieve at least partial corresponding electrical connection, which is beneficial to reducing the length of the transfer electrode 201 prepared when the transfer electrode 201 is extended in the first direction X1 in a direction away from the transfer electrode group 20 where it is located, thereby helping to reduce the routing impedance of the prepared transfer electrode 201, improve the accuracy when using the transfer electrode 201 to indirectly transmit electrical signals, and help to reduce the material cost of preparing the transfer electrode.

[0051] Alternatively, as Figure 4 、 Figure 5As shown, the second distance W2 between the transfer electrodes 201 in the same transfer electrode group 20 in the first direction X1 is equal to the first distance W1 between the connection electrodes 101 in the same connection electrode group 10 in the first direction X1, that is, W1=W2. As described above, the transfer electrode group 20 includes the transfer electrodes corresponding to the connection electrodes 101 respectively. Then, the transfer electrodes 201 and the connection electrodes 101 at least partially overlap in the direction perpendicular to the plane where the display panel AA is located, and the electrical connection can be achieved in the overlapping part. In the embodiments of the present application, the number of the transfer electrodes in the same transfer electrode group 20 and the number of the connection electrodes in the same connection electrode group 10 are both set to 2, which correspond to the anode and the cathode of the light emitting device. When W1=W2, the transfer electrode 201 extends beyond the corresponding connection electrode 101 in the first direction X1 away from the transfer electrode group 20 where the transfer electrode 201 is located. Moreover, the side of the transfer electrode 201 in the first direction X1 close to the other transfer electrode 201 in the same group is aligned with the side of the corresponding connection electrode 101 in the first direction X1 close to the other connection electrode 101 in the same group. As shown in Figure 5 As shown, the projection of the connection electrode 101 in the direction perpendicular to the plane where the display panel AA is located falls within the projection of the transfer electrode 201 in the direction perpendicular to the plane where the display panel AA is located, which is beneficial to increase the contact area between the connection electrode 101 and the corresponding transfer electrode 201, and to increase the electrical connection reliability between the connection electrode 101 and the transfer electrode 201, thereby improving the reliability of electrically connecting the large-size light emitting device to the driving substrate 100 by using the transfer electrode 201.

[0052] Figure 6 Another embodiment provided by the present application Figure 1 A partial schematic view of the region E1, Figure 7 An embodiment provided by the present application Figure 6 A schematic view of the cross section along the direction of C-C'.

[0053] In an embodiment of the present application, in combination with Figure 1 , Figure 6 As shown, the display panel AA further includes a light emitting device 30, which is located on the side of the transfer electrode group 20 away from the connection electrode group 10. Optionally, the light emitting device 30 can be a mini light emitting diode (Mini LED) or a micro light emitting diode (Micro LED). In the embodiments of the present application, the light emitting device 30 is taken as a micro light emitting diode (Micro LED) for description. In combination with Figure 7As shown, the first electrode 301 and the second electrode 302 of the light emitting device 30 are electrically connected with the connection electrodes 101 in the same group through the transfer electrodes 201 in the same group. Optionally, one of the first electrode 301 and the second electrode 302 of the light emitting device 30 is an anode and the other is a cathode.

[0054] The width of the light emitting device 30 in the first direction X1 is greater than the width of the connection electrode group 10 in the first direction X1, and the size of the light emitting device 30 is relatively large. Without the help of the transfer electrode 201, there is a case that at least one of the first electrode 301 and the second electrode 302 cannot be aligned to achieve contact electrical connection with the connection electrode 101.

[0055] In the embodiments of the present application, as shown in Figure 6 The corresponding transfer electrode group 20 is arranged on the side of the connection electrode group 10 away from the driving substrate 100, and the transfer electrodes 201 in the same transfer electrode group 20 all extend in the first direction X1 away from the transfer electrode group 20 where they are located, so that two transfer electrodes 201 in the same transfer electrode group 20 can correspond to the first electrode 301 and the second electrode 302 of the light emitting device 30 respectively. The transfer electrodes 201 in the same transfer electrode group 20 are respectively in contact electrical connection with the first electrode 301 and the second electrode 302. The transfer electrodes 201 in the same transfer electrode group 20 are respectively in electrical connection with the corresponding connection electrodes 101, thereby realizing that the first electrode 301 and the second electrode 302 of the light emitting device 30 are electrically connected with the connection electrodes 101 in the same group through the transfer electrodes 201 in the same group. This is conducive to realizing electrical connection between the large-size light emitting device 30 and the existing specification driving substrate 100, so that the driving substrate 100 has the condition to drive the light emitting device 30 to work, and is conducive to improving the utilization rate of the existing specification driving substrate 100, avoiding the preparation of the corresponding specification driving substrate 100, and reducing the preparation cost.

[0056] In an embodiment of the present application, continuing to refer to Figure 6 Figure 7 As shown, the connection electrodes 101 in the same connection electrode group 10 include a first connection electrode 101A and a second connection electrode 101B arranged along the first direction X1. The connection electrodes 101 in the same connection electrode group 10 are electrically connected with the first electrode 301 and the second electrode 302 of the same light emitting device 30, and one of the first connection electrode 101A and the second connection electrode 101B in the same connection electrode group 10 can be electrically connected with the first electrode 301 of the light emitting device 30, and the other can be electrically connected with the second electrode 302 of the same light emitting device 30. In the embodiments of the present application, the first connection electrode 101A in the same connection electrode group 10 is electrically connected with the first electrode 301 of the light emitting device 30, and the second connection electrode 101B is electrically connected with the second electrode 302 of the same light emitting device 30.​

[0057] The transfer electrodes 201 in the same transfer electrode group 20 include a first transfer electrode 201A and a second transfer electrode 201B arranged along the first direction X1. In the embodiment of the present application, the first transfer electrode 201A in the same transfer electrode group 20 is electrically connected to the first connection electrode 101A in the connection electrode group 10, and the second transfer electrode 201B is electrically connected to the second connection electrode 101B in the same connection electrode group 10, for example.

[0058] As shown in Figure 7 In the first direction X1, the distance between the edge of the first connection electrode 101A away from the second connection electrode 101B and the edge of the second connection electrode 101B away from the first connection electrode 101A is D1. In the first direction X1, the distance between the edge of the first electrode 301 away from the second electrode 302 and the edge of the second electrode 302 away from the first electrode 301 is D2, and D1 < D2. In this case, there is a situation that the first electrode 301 and the second electrode 302 of the light emitting device 30 cannot be accurately aligned with the connection electrode 101 that needs to be electrically connected in the direction perpendicular to the plane where the display panel AA is located, which is not conducive to the light emitting device 30 receiving the light emitting driving signal transmitted by the driving substrate 100. Therefore, the embodiment of the present application adopts the transfer electrode 201, so that the first electrode 301 and the second electrode 302 of the light emitting device 30 are electrically connected to the connection electrode 101 in the same group through the transfer electrode 201 in the same group, realizing the electrical connection between the light emitting device 30 and the driving substrate 100, so as to realize that the light emitting device 30 receives the light emitting driving signal transmitted by the driving substrate 100 through the transfer electrode 201.

[0059] In an embodiment of the present application, continuing to refer to Figure 7As shown, the distance between the edge of the first transfer electrode 201A away from the second transfer electrode 201B side to the edge of the second transfer electrode 201B away from the first transfer electrode 201A side is D3 in the first direction X1, and D3≥D2. Since the transfer electrodes 201 in the same transfer electrode group 20 are electrically connected with the connection electrodes 101 in the same connection electrode group 10, then in the direction perpendicular to the plane of the display panel, the first transfer electrode 201A at least partially overlaps and is electrically connected with the first connection electrode 101A, and the second transfer electrode 201B at least partially overlaps and is electrically connected with the second connection electrode 101B. And, by setting D3≥D2, it can be ensured that the prepared first transfer electrode 201A passes the first connection electrode 101A and the first electrode 301 of the light emitting device 30 in the first direction X1, so as to ensure that the prepared first transfer electrode 201A is electrically connected with the first connection electrode 101A and the first electrode 301 in the direction perpendicular to the display panel AA, and it can also be ensured that the prepared second transfer electrode 201B passes the second connection electrode 101B and the second electrode 302 of the light emitting device 30 in the first direction X1, so as to ensure that the prepared second transfer electrode 201B is electrically connected with the second connection electrode 101B and the second electrode 302 in the direction perpendicular to the display panel AA.

[0060] Figure 8 Yet another embodiment provided by the present application Figure 1 a partial schematic view of the region E1, Figure 9 an embodiment provided by the present application Figure 8 a schematic view of a cross section along the direction D-D'.

[0061] In an embodiment of the present application, in combination with Figure 1 , Figure 8 , Figure 9As shown, the driving substrate 100 further comprises a substrate 40 and a first insulating layer 50, which is located on the side of the connecting electrodes 101 away from the substrate 40. Generally, the film layer used to prepare the connecting electrodes 101 in the driving substrate 100 is prepared with a plurality of connecting electrodes 101 on the whole surface. The first insulating layer 50 prepared on the side of the connecting electrodes 101 away from the substrate 40 can be used to protect the plurality of connecting electrodes 101 from being damaged. The first insulating layer 50 comprises a first opening K1 corresponding to the connecting electrodes 101 and exposing at least part of the connecting electrodes 101. Optionally, one first opening K1 corresponds to one connecting electrode. A plurality of first openings K1 are formed in the first insulating layer 50 to expose the plurality of connecting electrodes 101 respectively. For one connecting electrode 101, the area of the connecting electrode 101 can be large. When the first opening K1 is formed, the area of the first opening K1 to be formed can be determined according to the electrical connection requirement with the light emitting device 30, that is, the size of the electrode of the light emitting device 30 to be used. When the large-size light emitting device 30 is prepared on the driving substrate 100, there can be a case that the large-size light emitting device 30 cannot be well aligned with the part of the connecting electrodes 101 exposed by the first opening K1 formed in the first insulating layer 50.

[0062] In the embodiment of the present application, the transfer electrode 20 is arranged to contact the connecting electrode 101 through the first opening K1 on the first insulating layer 50 and cover at least part of the first area A1 of the first insulating layer 50. In the driving substrate 100, the transfer electrode 201 is arranged to expand the electrode range. When the transfer electrode 201 is electrically connected with the light emitting device 30, part of the transfer electrode 201 is prepared on the first insulating layer 50 away from the substrate 40. This is advantageous to ensure that the part of the transfer electrode 201 not in contact with the connecting electrode 101 is isolated and protected by the first insulating layer 50, to avoid the part of the transfer electrode 201 facing the surface of the driving substrate 100 from being in contact and electrically connected with the structure having the conductive property other than the connecting electrode 101 on the driving substrate 100, to ensure that the part of the transfer electrode 201 not in contact with the connecting electrode 101 is only in contact with the electrode of the light emitting device 30, which is the structure having the conductive property, thereby ensuring the accuracy of the transfer of the electrical signal by the transfer electrode 201.

[0063] In one embodiment of the present application, continuing to refer to Figure 9As shown, the first region A1 is a region of the first insulating layer 50 on the side of the first opening K1 away from the connection electrode group 10 in the first direction X1. The transfer electrode 201 is arranged to extend beyond the corresponding connection electrode 101 in the first direction X1 away from the direction facing away from the transfer electrode group 20. The range of the same transfer electrode group 20 in the first direction X1 is greater than the range of the same connection electrode group 10 in the first direction. When the transfer electrode 201 is in contact with the connection electrode 101 through the first opening K1 and extends in the direction away from the transfer electrode group 20, the transfer electrode 201 covers the first region A1, so that the transfer electrode 201 can be effectively insulated from the circuit on the driving substrate 100, avoiding short circuit between the transfer electrode 201 and other circuits. Moreover, it is beneficial to avoid re-preparing the first opening K1 corresponding to the size of the transfer electrode 20, reducing the need to adjust the process of the first opening K1, and also beneficial to avoid the first opening K1 being too large, so that the driving substrate 100 is easily affected by water and oxygen.

[0064] In an embodiment of the present application, with continued reference to Figure 9 As shown, the first insulating layer 50 includes a first portion 501; along the first direction X1, part of the first portion 501 is located between the connection electrodes 101 in the same group, and part of the first portion 501 covers at least part of the connection electrodes 101. Taking two connection electrodes 101 arranged in the same connection electrode group 10 in the first direction X1 as an example, two first openings K1 can be arranged to expose the two connection electrodes 101. The two first openings K1 are not connected, and the first portion 501 located between the two first openings K1 is formed in the first insulating layer 50. The two sides of the first portion 501 in the first direction X1 can be reused as the edges of the adjacent two first openings K1.

[0065] In the same connection electrode group 10, part of the first portion 501 is located between the connection electrodes 101 in the same group, indicating that two connection electrodes 101 in the same group are not electrically connected, and part of the first portion 501 covers at least part of the connection electrodes 101, which means that the first opening K1 does not completely expose the connection electrode 101, which is beneficial to improve the protection of the connection electrode 101 by the first insulating layer 50.

[0066] With continued reference to Figure 9As shown, a gap W3 is provided between the first portion 501 and the transition electrode 201 in the first opening K1 in the first direction X1. In combination with the above, the edge of the first portion 501 adjacent to the first opening K1 in the first direction X1 can be regarded as the edge of the first opening K1. Therefore, when the transition electrode 201 is prepared in the first opening K1, the transition electrode 201 does not fill the first opening K1, but a gap W3 is provided between the side of the transition electrode 201 facing the first portion 501 and the first portion 501. This is because the first insulating layer 50 is made of an organic insulating material, and the transition electrode 201 is made of a metal material, the adhesion between the metal and the organic insulating material is small, and the edge of the first portion 501 facing the first opening K1 is already small in thickness. If the transition electrode 201 made of a metal material is in contact with the edge of the first portion 501 facing the first opening K1, the adhesion between the transition electrode 201 and the edge of the first portion 501 is small, and the edge of the transition electrode 201 or the first portion 501 is deformed and warped. When one of them is deformed and warped, the other is more likely to be deformed due to the contact. Therefore, in the embodiment of the present application, the gap W3 is provided between the transition electrode 201 in the first opening K1 in the first direction X1 and the first portion 501, which is beneficial to protect the structural stability of the part of the transition electrode 201 prepared in the first opening K1, and protect the structural stability of the first portion 501.

[0067] Figure 10 Another embodiment of the present application provides a Figure 1 a partial view of the region E1, Figure 11 Another embodiment of the present application provides a Figure 10 an enlarged view of the region E2.

[0068] In one embodiment of the present application, in combination with Figure 1 , Figure 10 , Figure 11As shown, the connection electrode 101 includes the main area 102A and the redundant area 102B arranged along the second direction X2. The second direction X2 is parallel to the plane where the display panel AA is located and intersects the first direction X1. The connection electrode 101 can be provided in a strip shape extending in the second direction X2, and the connection electrode 101 includes the main area 102A and the redundant area 102B in the second direction X2, both of which can transmit the electrical signal required to be transmitted by the connection electrode 101. When the light emitting device 30 is prepared on the driving substrate 100, the electrodes of the light emitting device 30 can be first prepared corresponding to the main area 102A of the connection electrode 101, and after the light emitting device 30 is prepared, if it is found through monitoring that the light emitting device 30 at a certain position cannot normally work and emit light, the redundant area 102B of the light emitting device 30 corresponding to the same connection electrode 101 is added for preparation, so as to avoid the occurrence of black spots on the display panel AA due to the failure of the light emitting device 30, and improve the display effect of the display panel AA.

[0069] Figure 12 A display panel provided by an embodiment of the present application Figure 10 A contrastive schematic view of the middle area E2 when the light emitting device is included.

[0070] In an embodiment of the present application, with continued reference to Figure 1 、 Figure 10 、 Figure 11 As shown, the connection electrode 101 includes the main area 102A and the redundant area 102B arranged along the second direction X2.

[0071] In combination with Fig. (1) in Figure 12 , the light emitting device 30 is a main light emitting device 30A, which can be a light emitting device 30 that needs to be prepared corresponding to the main area 102A of the connection electrode 101. The first electrode 301 and the second electrode 302 of the main light emitting device 30A at least partially overlap and are electrically connected with the main area 102A in the same connection electrode group 10. In an embodiment of the present application, for installing a large-size main light emitting device 30A on the present driving substrate 100, the adapter electrode 201 can be first prepared in the first opening K1 corresponding to the main area 102A of the connection electrode 101, so that the adapter electrode 201 is electrically connected with the main area 102A in the first opening K1, and then the first electrode 301 and the second electrode of the main light emitting device 30A are respectively electrically connected with two adapter electrodes 201 in the same adapter electrode group 20, so as to realize the electrical connection between the main light emitting device 30A and the main area 102A of the connection electrode 101.

[0072] In combination with Figure 12As shown in FIG. 2, if the light emitting device 30 is the redundant light emitting device 30B, the main region 102A on the connecting electrode 101 corresponding to the redundant light emitting device 30B has been prepared for the main light emitting device 30A, which is optionally removed or reserved. The redundant light emitting device 30B is a light emitting device 30 that substitutes for the main light emitting device 30A when the main light emitting device 30A cannot normally display. The first electrode 301 and the second electrode 302 of the redundant light emitting device 30B at least partially overlap and are electrically connected with the redundant region 102B in the same connecting electrode group 10. In the embodiment of the present application, for the installation of the large-size main light emitting device 30A on the present driving substrate 100, if the installation of the large-size main light emitting device 30A is completed and it is found that the main light emitting device 30A cannot normally display, another large-size redundant light emitting device 30B of the same specification is selected to continue to be prepared corresponding to the redundant region 102B. At this time, the transfer electrode 201 can be prepared again in the first opening K1 of the redundant region 102B corresponding region of the connecting electrode 101, so that the transfer electrode 201 is electrically connected with the redundant region 102B in the first opening K1, and then the electrodes of the redundant light emitting device 30B are electrically connected with the transfer electrode 201 by alignment, so as to realize the electrical connection between the redundant light emitting device 30B and the redundant region 102B of the connecting electrode 101, thereby realizing the troubleshooting of the display panel AA.

[0073] In one embodiment of the present application, continuing to refer to Figure 10 、 Figure 11 As shown, the first opening K1 simultaneously exposes the main region 102A and the redundant region 102B of the connecting electrode 101, which is beneficial to save the number of first openings K1 and beneficial to expand the area of the connecting electrode 101 exposed, so as to ensure the available space when the main light emitting device 30A and the redundant light emitting device 30B need to be arranged at the same time.

[0074] Figure 13 Another way provided by the embodiment of the present application is shown in Figure 1 a partial view of the middle region E1, Figure 14 a partial view of the middle region E3. Figure 13

[0075] In one embodiment of the present application, in combination with Figure 1 、 Figure 13 、 Figure 14 ​As shown, the driving substrate 100 further comprises a redundant transfer electrode group 60, which comprises redundant transfer electrodes 601 arranged in the first direction X1. In the second direction X2, the transfer electrode group 20 and the redundant transfer electrode group 60 are located in the same film layer and adjacent to each other. The main area 102A and the redundant area 102B on the same connection electrode 101 are located in the same plane, and the transfer electrode group 20 corresponding to the main area 102A and the redundant transfer electrode group 60 corresponding to the redundant area 102B can be located in the same film layer and adjacent to each other in the second direction X2.

[0076] In the embodiment of the present application Figure 13 、 Figure 14 , the main area 102A of the connection electrode 101 in at least the area E3 is electrically connected with the main light emitting device 30A, and the redundant area 102B is electrically connected with the redundant light emitting device 30B.

[0077] When the main light emitting device 30A cannot work normally or needs to be replaced by the redundant light emitting device 30 in the redundant area 102B to cope with other display conditions, the redundant transfer electrode group 60 can be arranged corresponding to the redundant area 102B of the connection electrode 10, and the first electrode 301 and the second electrode 302 of the redundant light emitting device 30B are electrically connected with the redundant area 102B in the same group of connection electrodes 101 through the same group of redundant transfer electrodes 601. Similar to the arrangement of the transfer electrode group 20, the redundant transfer electrodes 601 of the redundant transfer electrode group 60 are arranged to extend and expand in the first direction X1 away from the redundant area 102B of the corresponding connection electrode 101. The expanded redundant transfer electrodes 601 in the same redundant transfer electrode group 60 can be respectively electrically connected with the first electrode 301 and the second electrode 302 of the redundant light emitting device 30B, which is beneficial to realize the electrical connection between the large-size redundant light emitting device 30B and the redundant area 102B of the small-size connection electrode 101, and realize the display work of the redundant light emitting device 30B receiving the electrical signal.

[0078] Of course, in some other embodiments, if it is detected that the main light emitting device 30A cannot work normally, the main light emitting device 30A can be removed, and only the redundant light emitting device 30B at the redundant area 102B is retained. In addition, the redundancy in the redundant area 102B and the redundant light emitting device 30B in the present application means the meaning of backup. When the main light emitting device 30A is good and does not need to be replaced by the redundant light emitting device 30B, the redundant area is empty and does not connect the additional light emitting device 30.

[0079] Figure 15 In another embodiment of the present application Figure 1 , a partial schematic view of the area E1 is provided, Figure 16 In another embodiment of the present application Figure 15Partial view of the middle region E4.

[0080] In an embodiment of the present application, as shown in Figure 1 , Figure 15 , Figure 16 The adapter electrode 201 also includes the main region 202A and the redundant region 202B arranged along the second direction X2. The adapter electrode 201 can also be a long strip extending along the second direction X2. In the embodiments of the present application, Figure 15 , Figure 16 For example, the main region 102A of the connection electrode 101 in at least the region E4 is electrically connected to the main light emitting device 30A, and the redundant region 102B is electrically connected to the redundant light emitting device 30B.

[0081] In the embodiments of the present application, the adapter electrode 201 also includes the main region 202A and the redundant region 202B arranged along the second direction X2, which is beneficial to reduce the need to prepare the redundant light emitting device 30B and then prepare the adapter electrode 201 of the redundant region 102A of the corresponding connection electrode 101, and is beneficial to reduce the process when a large-size redundant light emitting device 30B needs to be prepared on the driving substrate 100. As shown in Figure 15 The first electrode 301 and the second electrode 302 of the redundant light emitting device 30B are electrically connected to the redundant region 102B of the same group of connection electrodes 101 through the redundant region 202B of the same group of adapter electrodes 201. In addition, the first electrode 301 and the second electrode 302 of the main light emitting device 30A are electrically connected to the main region 102A of the same group of connection electrodes 10 through the main region 202A of the same group of adapter electrodes 201.

[0082] Figure 17 In another embodiment of the present application, Figure 1 Partial view of the middle region E1, Figure 18 In an embodiment of the present application, Figure 17 Partial view of the middle region E5.

[0083] In an embodiment of the present application, as shown in Figure 1 , Figure 17 , Figure 18 The first opening K1 of the first insulating layer 50 exposes at least part of the main region 102A of the connection electrode 101. The first insulating layer 50 also includes a second opening exposing at least part of the redundant region 102A of the connection electrode 10. The first opening K1 and the second opening K2 are not connected in the second direction X2.

[0084] Corresponding to the same connection electrode 101, a first opening K1 is provided in the portion where the first insulating layer 50 overlaps with the main region 102A of the connection electrode 101, and a second opening K2 is provided in the portion where the first insulating layer 50 overlaps with the redundant region 102B of the connection electrode 101, so that the first opening K1 and the second opening K2 respectively include the main region 102A and the redundant region 102B of the connection electrode 101, which is beneficial to expose only the part of the main region 102A and the part of the redundant region 102B of the connection electrode 101 that needs to be used. Since the main light emitting device 30A and the redundant light emitting device 30B are arranged corresponding to the same connection electrode 101, there will be some gaps between the main light emitting device 30A and the redundant light emitting device 30B arranged in the second direction X2, and there will also be some gaps between the electrodes of the main light emitting device 30A and the electrodes of the redundant light emitting device 30B in the second direction X2. In this way, in actual use, there may be a situation that the part of the main region 102A of the connection electrode 101 on the side close to the redundant region 102B in the second direction X2 does not need to be in contact with other components for electrical connection, and there may also be a situation that the part of the redundant region 102B of the connection electrode 101 on the side close to the main region 102A in the second direction X2 does not need to be in contact with other components for electrical connection, and the middle part of the connection electrode 101 in the second direction X2 does not need to be in contact with other components for electrical connection, so the middle part does not need to be exposed in the opening.

[0085] Therefore, the first opening K1 and the second opening K2 are provided in the embodiments of the present application, and the first opening K1 and the second opening K2 are not connected, which is beneficial to retain part of the first insulating layer 50 between the first opening K1 and the second opening K2, so that the middle part of the connection electrode 101 in the second direction X2 can be protected by the first insulating layer 50, and further, the area of the connection electrode 101 exposed by the opening can be reduced, thereby reducing the risk of water and oxygen corroding the connection electrode 101 or even the internal circuit of the driving substrate 100, and improving the durability of the driving substrate 100.

[0086] In one embodiment of the present application, continuing to refer to the drawings shown in Figure 1 , Figure 17 , Figure 18 , the driving substrate 100 further includes a redundant transfer electrode group 60, and the redundant transfer electrode group 60 includes redundant transfer electrodes 601 arranged in the first direction X1. In the second direction X2, the transfer electrode group 20 and the redundant transfer electrode group 60 are located in the same film layer and adjacent to each other. The main region 102A and the redundant region 102B on the same connection electrode 101 are located in the same plane, so the transfer electrode group 20 corresponding to the main region 102A and the redundant transfer electrode group 60 corresponding to the redundant region 102B can be located in the same film layer and adjacent to each other in the second direction X2.

[0087] In the embodiments of the present application, Figure 17、 Figure 18 For example, in at least the region E5, the main region 102A of the connection electrode 101 is electrically connected with the main light emitting device 30A, and the redundant region 102B is electrically connected with the redundant light emitting device 30B.

[0088] In the embodiments of the present application, the main light emitting device 30A and the redundant light emitting device 30B corresponding to the same connection electrode 101 are taken as examples for illustration. The redundant transfer electrode 601 in the redundant transfer electrode group 60 is located on the first insulating layer 50 and contacts the redundant region 102A of the connection electrode 101 through the second opening K2. The redundant transfer electrode 601 is also arranged on the driving substrate 100. Similar to the arrangement of the transfer electrode 201, the redundant transfer electrode 601 of the redundant transfer electrode group 60 is arranged to extend and expand in the first direction X1 away from the redundant region 102B of the corresponding connection electrode 101, so that the expanded redundant transfer electrode 601 in the same redundant transfer electrode group 60 can be respectively aligned and electrically connected with the first electrode 301 and the second electrode 302 of the redundant light emitting device 30B. This is conducive to realizing the electrical connection between the large-size redundant light emitting device 30B and the small-size redundant region 102B of the connection electrode 101, and realizing the display work of the redundant light emitting device 30B receiving the electrical signal.

[0089] In addition, the transfer electrode 201 is arranged to be electrically connected with the main region 102A of the connection electrode 101 through the first opening K1, and the redundant transfer electrode 601 is arranged to be electrically connected with the redundant region 102B of the connection electrode 101 through the second opening K2. This is conducive to separating the two large electrode regions arranged by expanding the electrode range, avoiding a large increase in the impedance between the light emitting device 30 and the connection electrode 101, and ensuring the reliability of the light emitting driving signal received by the redundant light emitting device 30A or the main light emitting device 30A.

[0090] The first electrode 301 and the second electrode 302 of the redundant light emitting device 30B are electrically connected with the redundant region 102B in the same group of connection electrodes 101 through the same group of redundant transfer electrodes 601, and the first electrode 301 and the second electrode 302 of the main light emitting device 30A are electrically connected with the main region 102A in the same group of connection electrodes 101 through the same group of transfer electrodes 201.

[0091] Figure 19 Another embodiment provided by the present application Figure 1 A partial schematic view of the region E1, Figure 20 An embodiment provided by the present application Figure 19 A partial schematic view of the region E6.

[0092] In an embodiment of the present application, continuing to refer to Figure 1 、 Figure 19 、 Figure 20As shown, the transfer electrode 201 also includes a main region 202A and a redundant region 202B arranged along the second direction X2. The redundant region 202A of the transfer electrode 201 is located on the first insulating layer 50 and contacts the redundant region 102A of the connection electrode 101 through the second opening K2.

[0093] In the embodiments of the present application Figure 19 , Figure 20 , the main region 102A of the connection electrode 101 within at least the region E3 is electrically connected to the main light emitting device 30A, and the redundant region 102B is electrically connected to the redundant light emitting device 30B.

[0094] The transfer electrode 201 is also provided in a long strip structure extending in the second direction X2. The main region 202A of the prepared transfer electrode 201 is at least partially located in the first opening K1 and is in contact with the main region 102A of the corresponding connection electrode 101 for electrical connection. The redundant region 202B of the prepared transfer electrode 201 is at least partially located in the redundant region 102B of the corresponding connection electrode 101 for electrical connection. The first electrode 301 and the second electrode 302 of the redundant light emitting device 30B are electrically connected to the redundant region 102B of the same group of connection electrode groups 10 through the redundant region 102B of the same group of transfer electrodes 201, which is beneficial to avoid the need to prepare a redundant transfer electrode 601 when preparing the redundant light emitting device 30B. The process is beneficial to save the process.

[0095] In one embodiment of the present application, continuing to refer to Figures 13-14 , Figures 17-18 As shown, the driving substrate 100 further includes a redundant transfer electrode group 60, which includes redundant transfer electrodes 601 arranged in the first direction X1. The same group of redundant transfer electrodes 601 includes a first redundant transfer electrode 601A and a second redundant transfer electrode 601B. The same group of connection electrodes 101 includes a first connection electrode 101A and a second connection electrode 102A. The first electrode 301 of the prepared redundant light emitting device 30B is electrically connected to the redundant region 102B of the first connection electrode 101A through the first redundant transfer electrode 601A. The second electrode 302 of the prepared redundant light emitting device 30B is electrically connected to the redundant region 102B of the second connection electrode 101B through the second redundant transfer electrode 601B.

[0096] The transfer electrodes 201 in the same group include a first transfer electrode 201A and a second transfer electrode 201B. The first electrode 301 of the redundant light-emitting device 30B is electrically connected to the redundant area 102B of the first connection electrode 101A through the first redundant transfer electrode 601A, and the second electrode 302 of the redundant light-emitting device 30B is electrically connected to the redundant area 102B of the second connection electrode 101B through the second redundant transfer electrode 601B.

[0097] In this embodiment of the present application, the distance along the first direction X1 between the edge of the first redundant transition electrode 601A away from the second redundant transition electrode 601B and the edge of the second redundant transition electrode 601B away from the first redundant transition electrode 601A is equal to the distance along the first direction X1 between the edge of the first transition electrode 201A away from the second transition electrode 201B and the edge of the second transition electrode 201B away from the first transition electrode 201A. In other words, the outward extension range of the first and second redundant transition electrodes 201A and 201B is consistent with the outward extension range of the first and second redundant transition electrodes 601A and 601B. When selecting the redundant light-emitting device 30B, a light-emitting device 30 of the same specifications as the main light-emitting device 30A is usually selected. Therefore, the above arrangement helps ensure that the first electrode 301 and the second electrode 302 of the redundant light-emitting device 30B of the same size can be smoothly aligned and contacted with the first redundant transfer electrode 601A and the second redundant transfer electrode 601B, respectively, to achieve electrical connection between the driving substrate 100 and the large-sized redundant light-emitting device 30B.

[0098] Figure 21 Another embodiment of the present application provides Figure 1 A partial schematic diagram of the middle area E1, Figure 22 A method provided in the embodiment of this application Figure 21 Schematic diagram of the cross section along the E-E' direction.

[0099] In one embodiment of the present application, Figure 1 、 Figure 21 、 Figure 22 As shown, the display panel AA also includes a light-emitting device 30, which is located on the side of the adapter electrode group 20 away from the connecting electrode group 10, and the light-emitting device 30 is located on the side of the driving substrate 100 facing the light-emitting surface of the display panel AA. The light-emitting device 30 can receive the light-emitting driving signal transmitted by the driving substrate 100 through the adapter electrode group 20 and the connecting electrode group 10.

[0100] In the embodiments of this application, Figure 21As shown, the display panel AA further comprises a light emitting device 30 located at a side of the transfer electrode group 20 away from the connection electrode group 10. The projection of the connection electrode group 10 in a direction perpendicular to the plane where the display panel AA is located and the projection of the transfer electrode group in a direction perpendicular to the plane where the display panel is located are both not more than the edge of the projection of the light emitting device 30 in the first direction X1. As known from the above embodiment, at least one transfer electrode 201 in the same transfer electrode group 20 exceeds the corresponding connection electrode 101 in the first direction X1 towards the direction away from the transfer electrode group 20, the width of the connection electrode group 10 in the first direction X1 is less than the width of the light emitting device 30 in the first direction X1, and the light emitting device 30 cannot be directly well aligned with the connection electrode 101 in the connection electrode group 10. At this time, the transfer electrode 201 expands the electrical connection range of the connection electrode 10, so that the electrode of the light emitting device 30 can be aligned and electrically connected with the transfer electrode 201, and the transfer electrode 201 and the connection electrode 101 are at least partially overlapped and electrically connected, realizing the electrical connection of the large-size light emitting device 30 with the connection electrode 101 through the transfer electrode 201. When the transfer electrode 201 is arranged to extend in the first direction X1 towards the direction away from the transfer electrode group 20 where it is located, the side of the transfer electrode 201 away from the transfer electrode group 20 where it is located in the first direction X1 is not more than the edge of the light emitting device 30 in the first direction X1, so that the projection of the transfer electrode group 20 in a direction perpendicular to the plane where the display panel AA is located is not more than the edge of the projection of the light emitting device 30 in the first direction X1, which is beneficial to avoiding the risk of the transfer electrode 201 expanding too much in the first direction X1 away from the transfer electrode group 20 where it is located and contacting or affecting other components, and is beneficial to ensuring the stability of the transfer electrode 201 on the basis of realizing the alignable electrical connection between the electrode of the light emitting device 30 and the transfer electrode 201.

[0101] In an embodiment of the present application, with continued reference to Figure 1 、 Figure 21 、 Figure 22As shown, the driving substrate 100 further comprises a substrate 40 and a first insulating layer 50, which is located on the side of the connecting electrodes 101 away from the substrate 40. Generally, the film layer used to prepare the connecting electrodes 101 in the driving substrate 100 is prepared with a plurality of connecting electrodes 101 on the whole surface. The first insulating layer 50 prepared on the side of the connecting electrodes 101 away from the substrate 40 can be used to protect the plurality of connecting electrodes 101 from being damaged. The first insulating layer 50 comprises a first opening K1 corresponding to the connecting electrode 101 and exposing at least part of the connecting electrode 101. Alternatively, one first opening K1 corresponds to one connecting electrode, and a plurality of first openings K1 are opened in the first insulating layer 50 to expose a plurality of connecting electrodes 101 respectively. Moreover, for one connecting electrode 101, the area of the connecting electrode 101 can be large, and when the first opening K1 is opened, the area of the first opening K1 to be opened can be determined according to the need of electrical connection with the light emitting device 30, that is, the size of the electrode of the light emitting device 30 to be used.

[0102] In the embodiments of the present application, the light emitting device 30 comprises a first electrode 301 and a second electrode 302, and the first electrode 301 and the second electrode 302 are electrically connected to the same group of connecting electrodes 101 through the same group of transfer electrodes 201. It is continued to refer to Figure 22As shown, the projection of the first electrode 301 and the second electrode 302 on the substrate 40 falls into the projection of the same group of the transfer electrodes 201 on the substrate 40. The number of the electrodes of the light emitting device 30 corresponding to the same group of the transfer electrodes 201 includes two transfer electrodes 201, and the first transfer electrode 201A and the second transfer electrode 201B are taken as an example. The number of the connecting electrodes 101 in the same group includes two connecting electrodes 101, and the first connecting electrode 101A and the second connecting electrode 101B are taken as an example. The first electrode 301 of the light emitting device 30 is electrically connected with the first connecting electrode 101A through the first transfer electrode 201A, and the second electrode 302 is electrically connected with the second connecting electrode 101B in the same connecting electrode group 10 through the second transfer electrode 201B in the same transfer electrode group 20. Therefore, when the transfer electrodes 201 are arranged, in the same group of the transfer electrodes 201, the first transfer electrode 201A is at least partially in contact with the first connecting electrode 101A on the side close to the second transfer electrode 201B, and the side of the first transfer electrode 201A away from the second transfer electrode 201B extends in the first direction X1 to the side away from the second transfer electrode 201B, and is expanded to a size such that when the projection of the first electrode 301 on the substrate 40 falls into the projection of the first transfer electrode 201A on the substrate 40, the surface of the first electrode 301 facing the first transfer electrode 201A can be completely in contact with the first transfer electrode 201A, and the alignment yield between the first electrode 301 and the first transfer electrode 201A is ensured. Similarly, in the same group of the transfer electrodes 201, the second transfer electrode 201B is at least partially in contact with the second connecting electrode 101B on the side close to the first transfer electrode 201A, and the side of the second transfer electrode 201B away from the first transfer electrode 201A extends in the first direction X1 to the side away from the first transfer electrode 201A, and is expanded to a size such that when the projection of the second electrode 302 on the substrate 40 falls into the projection of the second transfer electrode 201B on the substrate 40, the surface of the second electrode 302 facing the second transfer electrode 201B can be completely in contact with the second transfer electrode 201B, and the alignment yield between the second electrode 302 and the second transfer electrode 201B is ensured.

[0103] In one embodiment of the present application, with continued reference to Figure 1 、 Figure 21 、 Figure 22As shown, the connection electrodes 101 in the same connection electrode group 10 include the first connection electrode 101 A and the second connection electrode 101B arranged along the first direction X1; the transfer electrodes 201 in the same transfer electrode group 20 include the first transfer electrode 201A and the second transfer electrode 201B arranged along the first direction X1. In the embodiment of the present application, the first electrode 301 of the light emitting device 30 is electrically connected to the first connection electrode 101A through the first transfer electrode 201A, and the second electrode 302 of the light emitting device 30 is electrically connected to the second connection electrode 101B through the second transfer electrode 201B.

[0104] In the first direction X1, the side of the first transfer electrode 201A away from the second transfer electrode 201B exceeds the side of the first connection electrode 101A away from the second connection electrode 101B, and the side of the first transfer electrode 201A away from the second transfer electrode 201B exceeds the projection of the first opening K1 exposing the first connection electrode 101A on the substrate 40. The first opening K1 of the first connection electrode 101A only exposes part of the first connection electrode 101A, so that the part of the first transfer electrode 201A close to the second transfer electrode 201B is in contact with the first connection electrode 101A within the first opening K1, and the remaining part close to the side of the driving substrate 100 is in contact with the first insulating layer 50. This is conducive to avoiding the part of the first transfer electrode 201A extending away from the second transfer electrode 201B from contacting other traces on the driving substrate 100, and ensures the accuracy of the first transfer electrode 201A in transmitting the electrical signal output by the first connection electrode 101A. In the first direction X1, the side of the second transfer electrode 201B away from the first transfer electrode 201A exceeds the side of the second connection electrode 101B away from the first connection electrode 101A, and the side of the second transfer electrode 201B away from the first transfer electrode 201A exceeds the projection of the first opening K1 exposing the second connection electrode 101B on the substrate 40. The first opening K1 of the second connection electrode 101B only exposes part of the second connection electrode 101B, so that the part of the second transfer electrode 201B close to the first transfer electrode 201A is in contact with the second connection electrode 101B within the first opening K1, and the remaining part close to the side of the driving substrate 100 is in contact with the first insulating layer 50. This is conducive to avoiding the part of the second transfer electrode 201B extending away from the first transfer electrode 201A from contacting other traces on the driving substrate 100, and ensures the accuracy of the second transfer electrode 201B in transmitting the electrical signal transmitted by the second connection electrode 101B.

[0105] Continuing to refer to Figure 21 , Figure 22As shown, the projection of the first opening K1 exposing the first connection electrode 101A on the substrate 40 falls within the projection of the first connection electrode 101A on the substrate 40 in the direction perpendicular to the display panel AA, indicating that the planar area of the first connection electrode 101A is greater than the area of the first opening K1, which is beneficial to make the first opening K1 not completely expose the first connection electrode 101A, and reduce the risk of water and oxygen corrosion of the first connection electrode 101A or even the internal circuit of the driving substrate 100 through the first opening K1. Moreover, the projection of the first opening K1 on the substrate 40 exceeds the side of the first transfer electrode 201A close to the second transfer electrode 201B in the first direction X1, and at this time, the first transfer electrode 201A does not contact the edge of the first opening K1 close to the second transfer electrode 201B in the first direction X1, and there is a gap between them. Therefore, when the first transfer electrode 201A is prepared in the first direction X1, the part of the first transfer electrode 201A close to the second transfer electrode 201B only needs to contact the first connection electrode 101A to realize electrical connection, and it is not necessary to be aligned with the first opening K1, which is beneficial to reduce the length of the first transfer electrode 201A prepared in the first direction X1 along the first opening K1, thereby reducing the total length of the entire first transfer electrode 201A in the first direction X1, reducing the preparation cost of the first transfer electrode 201A, and reducing the wiring impedance of the first transfer electrode 201A.

[0106] In the direction perpendicular to the display panel AA, the projection of the first opening K1 exposing the second connection electrode 101B on the substrate 40 falls within the projection of the second connection electrode 21B on the substrate 40, and exceeds the side of the second transfer electrode 201B close to the first transfer electrode 201A in the first direction X1. This indicates that the planar area of the second connection electrode 101B is greater than the area of the first opening K1, which is beneficial to make the first opening K1 not completely expose the second connection electrode 101B, and reduce the risk of water and oxygen corrosion of the second connection electrode 101B or even the internal circuit of the driving substrate 100 through the first opening K1. Moreover, the projection of the first opening K1 on the substrate 40 exceeds the side of the second transfer electrode 201B close to the first transfer electrode 201A in the first direction X1, and at this time, the second transfer electrode 201B does not contact the edge of the first opening K1 close to the first transfer electrode 201A in the first direction X1, and there is a gap between them. Therefore, when the second transfer electrode 201B is prepared in the first direction X1, the part of the second transfer electrode 201B close to the first transfer electrode 201A only needs to contact the second connection electrode 101B to realize electrical connection, and it is not necessary to be aligned with the first opening K1, which is beneficial to reduce the length of the second transfer electrode 201B prepared in the first direction X1 along the first opening K1, thereby reducing the total length of the entire second transfer electrode 201B in the first direction X1, reducing the preparation cost of the second transfer electrode 201B, and reducing the wiring impedance of the second transfer electrode 201B.

[0107] Figure 23 Yet another aspect of the embodiments of the present application provides a display device Figure 2 A schematic view of a cross section along the direction of A-A'.

[0108] In one embodiment of the present application, as shown in Figure 23 the driving substrate 100 further comprises a pixel circuit 70, which is located on the side of the connecting electrode group 10 away from the switching electrode group 20, and the pixel circuit 70 comprises a light-emitting driving current output end OUT, which is electrically connected with one of the connecting electrodes 101 in the connecting electrode group 10. It should be noted that in Figure 23 the pixel circuit 70 is schematically shown by at least one thin film transistor, and in the actual pixel circuit 70, a plurality of thin film transistors are included, and the light-emitting driving current output end OUT of the pixel circuit 70 can output the light-emitting driving current to one of the connecting electrodes 101 in the connecting electrode group 10. After the connecting electrode group 10 on the driving substrate 100 is electrically connected with the light-emitting device 30, the pixel circuit 70 can generate the light-emitting driving current to be provided to one of the connecting electrodes 101, and then the connecting electrode 101 outputs the light-emitting driving current to one pole of the light-emitting device 30. In the embodiments of the present application, the light-emitting device 30 is taken as a large-size light-emitting device 30 as an example, and the switching electrode group 20 is further arranged on the driving substrate 100, and the light-emitting device 30 realizes the electrical connection between the same group of the switching electrodes 201 and the same group of the connecting electrodes 101, and after the light-emitting driving current output end OUT of the pixel circuit 70 outputs the light-emitting driving current, one of the connecting electrodes 101 in the connecting electrode group 10 first receives the light-emitting driving current, and then the light-emitting driving current flows through one of the switching electrodes 201 and is electrically connected with one pole of the light-emitting device 30, and the light-emitting device 30 emits light.

[0109] Figure 24 A schematic view of a display device provided by the embodiments of the present application.

[0110] The embodiments of the present application provide a display device 200, as shown in Figure 24 the display device 200 comprises the display panel AA provided by any one of the above-mentioned embodiments. Optionally, the display device 200 is a computer, a television, a mobile phone or the like device for display.

[0111] In the display device 200, the at least one transfer electrode 201 in the same transfer electrode group 20 is arranged to extend beyond the corresponding connection electrode 101 in the first direction X1 away from the transfer electrode group 20, which is beneficial to expand the prepared transfer electrode 201 in the first direction X1 away from the transfer electrode group 20, so that the width of the same transfer electrode group 20 in the first direction X1 is increased, and can be increased to be close to the size of the light emitting device 20 in the first direction X1, so that the anode and the cathode of the light emitting device can be aligned with the transfer electrode 201 in the same group, so that the light emitting device is first electrically connected with the transfer electrode 201, and then the transfer electrode 201 is used as an intermediate to realize the connection between the light emitting device 20 and the connection electrode 101, so that the light emitting driving signal generated by the driving substrate 100 is successfully transmitted to the light emitting device, and the light emitting of the light emitting device is realized. It should be noted that, alternatively, if the width of the electrode of the light emitting device 30 in the second direction X2 is also large, the width of the transfer electrode 201 in the second direction X2 can also be appropriately expanded, so as to facilitate the alignment area between the electrode of the light emitting device 30 and the transfer electrode 201. The second direction X2 is a direction intersecting the first direction X2, and the first direction X1 and the second direction X2 are both parallel to the plane on which the display panel AA is located. Moreover, at the position on the driving substrate 100 where the large-size light emitting device needs to be electrically connected, the transfer electrode group 20 is additionally arranged, the size and position of the transfer electrode 201 in the same group are arranged to be aligned with the anode and the cathode of the large-size light emitting device, and the transfer electrode 201 in the same group is electrically connected with the connection electrode 101 in the same group, which is beneficial to avoid the re-preparation of the driving substrate 100, improve the utilization rate of the existing driving substrate 100, avoid the waste of resources of the existing driving substrate 100, and reduce the preparation cost of the driving substrate 100, and is beneficial to realize the electrical connection between the driving substrate 100 and the large-size light emitting device, and realize the display requirement of the display panel AA.

[0112] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A display panel, characterized by, The display panel comprises: a driving substrate comprising a plurality of connection electrode groups, each of the connection electrode groups comprising connection electrodes arranged along a first direction, and the connection electrodes in the same group having a first distance therebetween; a plurality of adapter electrode groups on the driving substrate and corresponding to the connection electrode groups, each of the adapter electrode groups comprising adapter electrodes corresponding to the connection electrodes; wherein at least one of the adapter electrodes in the same adapter electrode group extends beyond the corresponding connection electrode in the first direction away from the adapter electrode group.

2. The display panel of claim 1, wherein, The adapter electrodes in the same adapter electrode group have a second distance therebetween in the first direction; wherein the second distance is greater than or equal to the first distance.

3. The display panel of claim 1, wherein, The display panel further comprises light emitting devices on a side of the adapter electrode groups away from the connection electrode groups; first electrodes and second electrodes of the light emitting devices are electrically connected to the connection electrodes and the adapter electrodes in the same groups through the adapter electrodes and the connection electrodes in the same groups.

4. The display panel of claim 3, wherein, The connection electrodes in the same connection electrode group comprise first connection electrodes and second connection electrodes arranged along the first direction; The adapter electrodes in the same adapter electrode group comprise first adapter electrodes and second adapter electrodes arranged along the first direction; wherein in the first direction, a distance between an edge of the first connection electrode away from the second connection electrode and an edge of the second connection electrode away from the first connection electrode is D1; in the first direction, a distance between an edge of the first electrode away from the second electrode and an edge of the second electrode away from the first electrode is D2; D1 < D2.

5. The display panel of claim 4, wherein, In the first direction, a distance between an edge of the first adapter electrode away from the second adapter electrode and an edge of the second adapter electrode away from the first adapter electrode is D3; D3 ≥ D2.

6. The display panel of claim 1, wherein: the driving substrate further comprises a substrate and a first insulating layer on a side of the connection electrodes away from the substrate; the first insulating layer comprises first openings corresponding to the connection electrodes and exposing at least part of the connection electrodes; the adapter electrodes are on the first insulating layer and contact the connection electrodes through the first openings and cover at least part of a first region of the first insulating layer.

7. The display panel of claim 6, wherein, The first region is a region of the first insulating layer on a side of the first openings away from the connection electrode groups in the first direction.

8. The display panel of claim 6, wherein, The first insulating layer comprises first portions; in the first direction, part of the first portions is between the connection electrodes in the same group, and part of the first portions covers at least part of the connection electrodes; wherein in the first direction, a gap is included between the adapter electrodes in the first openings and the first portions.

9. The display panel of claim 6, wherein, The connection electrodes comprise main regions and redundant regions arranged along a second direction; the second direction is parallel to a plane in which the display panel is located and intersects the first direction.

10. The display panel of claim 9, wherein, The light emitting device is a main light emitting device, and the first electrode and the second electrode of the main light emitting device at least partially overlap and are electrically connected with the main region in the same connection electrode group; If the light emitting device is a redundant light emitting device, the first electrode and the second electrode of the redundant light emitting device at least partially overlap and are electrically connected with the redundant region in the same connection electrode group.

11. The display panel of claim 10, wherein, The first opening simultaneously exposes the main region and the redundant region of the connection electrode.

12. The display panel of claim 11, wherein, The driving substrate further comprises a redundant transfer electrode group, and the redundant transfer electrode group comprises redundant transfer electrodes arranged in the first direction; In the second direction, the transfer electrode group and the redundant transfer electrode group are located in the same film layer and are adjacent to each other; The first electrode and the second electrode of the redundant light emitting device are electrically connected with the redundant region in the same transfer electrode group through the redundant transfer electrode group.

13. The display panel of claim 11, wherein, The transfer electrode also comprises a main region and a redundant region arranged in the second direction, and the first electrode and the second electrode of the redundant light emitting device are electrically connected with the redundant region in the same connection electrode group through the redundant region in the same transfer electrode group.

14. The display panel of claim 10, wherein, The first opening of the first insulating layer exposes at least part of the main region of the connection electrode, and the first insulating layer further comprises a second opening exposing at least part of the redundant region of the connection electrode, and the first opening and the second opening are not connected in the second direction.

15. The display panel of claim 14, wherein, The driving substrate further comprises a redundant transfer electrode group, and the redundant transfer electrode group comprises redundant transfer electrodes arranged in the first direction; In the second direction, the transfer electrode group and the redundant transfer electrode group are located in the same film layer and are adjacent to each other; The redundant transfer electrode in the redundant transfer electrode group is in contact with the redundant region of the connection electrode through the second opening on the first insulating layer; and the first electrode and the second electrode of the redundant light emitting device are electrically connected with the redundant region in the same transfer electrode group through the redundant transfer electrode group.

16. The display panel of claim 14, wherein, The transfer electrode also comprises a main region and a redundant region arranged in the second direction, and the first electrode and the second electrode of the redundant light emitting device are electrically connected with the redundant region in the same connection electrode group through the redundant region in the same transfer electrode group.

17. The display panel of claim 12 or 15, wherein, The driving substrate further comprises a redundant transfer electrode group, and the redundant transfer electrode group comprises redundant transfer electrodes arranged in the first direction; The redundant transfer electrode group comprises a first redundant transfer electrode and a second redundant transfer electrode; The transfer electrode group comprises a first transfer electrode and a second transfer electrode; In the first direction, the distance between the edge of the first redundant transfer electrode away from the second redundant transfer electrode and the edge of the second redundant transfer electrode away from the first redundant transfer electrode is equal to the distance between the edge of the first transfer electrode away from the second transfer electrode and the edge of the second transfer electrode away from the first transfer electrode.

18. The display panel of claim 1, wherein, The display panel further comprises a light emitting device, the light emitting device is located on the side of the transfer electrode group away from the connection electrode group; the projection of the connection electrode group in the direction perpendicular to the plane where the display panel is located and the projection of the transfer electrode group in the direction perpendicular to the plane where the display panel is located do not exceed the edge of the projection of the light emitting device in the first direction X1.

19. The display panel of claim 18, wherein, The driving substrate further comprises a substrate, a first insulating layer, the first insulating layer is located on the side of the connection electrode away from the substrate; the first insulating layer comprises a first opening corresponding to the connection electrode and exposing at least part of the connection electrode; the light emitting device comprises a first electrode and a second electrode, the first electrode and the second electrode are electrically connected to the same group of connection electrodes through the same group of transfer electrodes; the projection of the first electrode and the second electrode on the substrate falls within the projection of the same group of transfer electrodes on the substrate.

20. The display panel of claim 19, wherein, The connection electrodes in the same connection electrode group comprise a first connection electrode and a second connection electrode arranged along the first direction; The transfer electrodes in the same transfer electrode group comprise a first transfer electrode and a second transfer electrode arranged along the first direction; Wherein, along the first direction, the side of the first transfer electrode away from the second transfer electrode exceeds the side of the first connection electrode away from the second connection electrode, and the side of the first transfer electrode away from the second transfer electrode exceeds the projection of the first opening exposing the first connection electrode on the substrate; along the first direction, the side of the second transfer electrode away from the first transfer electrode exceeds the side of the second connection electrode away from the first connection electrode, and the side of the second transfer electrode away from the first transfer electrode exceeds the projection of the first opening exposing the second connection electrode on the substrate; Along the direction perpendicular to the display panel, the projection of the first opening exposing the first connection electrode on the substrate falls within the projection of the first connection electrode on the substrate, and exceeds the side of the first transfer electrode close to the second transfer electrode in the first direction; along the direction perpendicular to the display panel, the projection of the first opening exposing the second connection electrode on the substrate falls within the projection of the second connection electrode on the substrate, and exceeds the side of the second transfer electrode close to the first transfer electrode in the first direction.

21. The display panel of claim 1, wherein, The driving substrate further comprises a pixel circuit, the pixel circuit is located on the side of the connection electrode group away from the transfer electrode group, the pixel circuit comprises a light emitting driving current output end, the light emitting driving current output end is electrically connected with one of the connection electrodes in the connection electrode group.

22. A display device comprising: The display panel comprises any one of claims 1-21.

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