Display panel, display module and display system

Abstract

The present application belongs to the technical field of display. Disclosed are a display panel, a display module and a display system. The display panel comprises a backplane and a plurality of light-emitting units. In the backplane of the display panel, through holes extending through the backplane are formed in areas defined by at least some adjacent first signal lines and adjacent second signal lines. In this way, the through holes can be distributed in the backplane of the display panel and serve as acoustic transmission holes, such that even when an audio device is arranged on the back of the display panel, sound generated by the audio device can also be transmitted out from the acoustic transmission holes in the display panel, so as to ensure that the display panel does not shield the sound generated by the audio device.

Description

Display panel, display module and display system Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel, a display module, and a display system. Background Art

[0002] With the development of display technology, LED display panels have become the most advantageous new generation display media and have been widely used due to their advantages of pure color, wide dynamic range, high brightness, high definition, low operating voltage, low power consumption, long life, impact resistance, large viewing angle and stable and reliable operation.

[0003] However, current LED display panels generally only have a display function, resulting in relatively simple functions of the LED display panels.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a display panel, a display module, and a display system. These embodiments can address the problem of the relatively single function of LED display panels in the prior art. The technical solutions are as follows:

[0006] In one aspect, a display panel is provided, comprising:

[0007] Back panel;

[0008] A plurality of light-emitting units arranged in an array on one side of the backplane, the light-emitting units comprising: a driving portion fixed to the backplane and a plurality of light-emitting portions;

[0009] The backplane is integrated with multiple groups of first signal lines and multiple groups of second signal lines, one group of the first signal lines is electrically connected to each of the light-emitting units arranged along a first direction, and one group of the second signal lines is electrically connected to each of the light-emitting units arranged along a second direction, and the first direction and the second direction are different;

[0010] A functional portion is provided in an area enclosed by at least a portion of the adjacent first signal lines and the adjacent second signal lines. The functional portion is a through hole penetrating the backplane.

[0011] Optionally, a group of first signal lines includes a plurality of first signal lines, and at least one first signal line in the group of first signal lines has: a plurality of first bending structures and a plurality of second bending structures, the plurality of first bending structures and the plurality of second bending structures are alternately arranged one by one, and an opening direction of the first bending structure is opposite to an opening direction of the second bending structure;

[0012] Wherein, the opening of the first bending structure faces the functional part.

[0013] Optionally, at least one of the light-emitting portions in the light-emitting unit is electrically connected to the first signal line;

[0014] The opening of the second bending structure faces the light emitting unit.

[0015] Optionally, the plurality of light-emitting units include a first light-emitting unit, and the back panel further integrates a first pad group electrically connected to the first light-emitting unit and a driving pad group electrically connected to the driving unit;

[0016] Among them, the first pad group includes: a first electrode pad and a second electrode pad, and the first electrode pad is electrically connected to the second bending structure; the driving pad group includes: a first signal output pad corresponding to the first pad group, and the first signal output pad is electrically connected to the second electrode pad in the first pad group.

[0017] Optionally, the plurality of light-emitting portions further include a second light-emitting portion and a third light-emitting portion, and the back panel further integrates a second solder pad group electrically connected to the second light-emitting portion, and a third solder pad group electrically connected to the third light-emitting portion;

[0018] The second pad group includes a third electrode pad and a fourth electrode pad, the driving pad group further includes a second signal output pad corresponding to the second pad group, and the second signal output pad is electrically connected to the fourth electrode pad in the second pad group;

[0019] The third pad group includes a fifth electrode pad and a sixth electrode pad. The driving pad group further includes a third signal output pad corresponding to the third pad group. The third signal output pad is electrically connected to the sixth electrode pad in the third pad group.

[0020] Optionally, the first electrode pad and the third electrode pad are the same pad;

[0021] Alternatively, the first electrode pad and the fifth electrode pad are the same pad;

[0022] Alternatively, the third electrode pad and the fifth electrode pad are the same pad;

[0023] Alternatively, the first electrode pad, the third electrode pad, and the fifth electrode pad are the same pad.

[0024] Optionally, a group of the first signal lines includes: a data signal line and a first common electrode signal line; the first common electrode signal line has the first bending structure and the second bending structure; the driving pad group further includes a first access pad, and the first access pad is electrically connected to the data signal line;

[0025] The first access pad and at least two signal output pads are arranged in a row, and the at least two signal output pads are at least two of the first signal output pad, the second signal output pad and the third signal output pad.

[0026] Optionally, the first access pad and the at least two signal output pads are arranged along the first direction;

[0027] The second electrode pad, the fourth electrode pad, and the sixth electrode pad are arranged along the first direction.

[0028] Optionally, the orthographic projection of the data signal on the plane where the backplane is located overlaps with the orthographic projection of the first access pads and the signal output pads arranged in a row along the first direction on the plane where the backplane is located.

[0029] Optionally, a bent trace is further integrated in the back plate, and two ends of the bent trace are electrically connected to the third signal output pad and the sixth electrode pad respectively;

[0030] The backplane has a first via for connecting the first access pad and the data signal line. In the first direction, the first part of the bent trace is distributed on the side of the first via away from the first access pad. In the second direction, the second part and the third part of the bent trace are respectively located on both sides of the first via; wherein, the third signal output pad, the second part of the bent trace, the first part of the bent trace, the third part of the bent trace and the sixth electrode pad are connected in series in sequence.

[0031] Optionally, the first access pad, the first signal output pad, and the second signal output pad are arranged along the first direction as a first column of driving pads;

[0032] The third signal output pad is located on a side of the first column driving pad away from the plurality of light emitting units;

[0033] The driving pad group also includes a ground pad, and the backplane also has a second via for connecting the ground pad and the ground end of the backplane, in the first direction, the first part of the bent trace and the fourth part of the bent trace are respectively located on both sides of the second via; in the second direction, the second part of the bent trace is located on the side of the second via away from the ground pad, wherein the third signal output pad, the fourth part of the bent trace, the second part of the bent trace, the first part of the bent trace, the third part of the bent trace and the sixth electrode pad are connected in series in sequence.

[0034] Optionally, the driving pad group further includes: a second access pad and a ground pad, wherein the second access pad is electrically connected to the second signal line, and the ground pad is electrically connected to the ground end of the backplane;

[0035] In one of the driving pad groups, the first access pad, the first signal output pad, and the second signal output pad are arranged along the first direction as a first column of driving pads, and the ground pad, the third signal output pad, and the second access pad are arranged along the first direction as a second column of driving pads;

[0036] The first pad group, the second pad group, and the third pad group corresponding to one light emitting unit are all located on a side of the first column of driving pads away from the second column of driving pads.

[0037] Optionally, in the first pad group, the second pad group and the third pad group corresponding to one of the light-emitting units, the first electrode pad, the third electrode pad and the fifth electrode pad are arranged as a first column of electrode pads along the first direction, the second electrode pad, the fourth electrode pad and the sixth electrode pad are arranged as a second column of electrode pads along the first direction, and the first column of electrode pads is located on the side of the second column of electrode pads away from the first column of driving pads.

[0038] Optionally, the first access pad and the ground pad are arranged adjacent to each other in the second direction, the third signal output pad is located between the ground pad and the second access pad, and the second access pad is closer to the second signal line electrically connected to the second access pad than the ground pad.

[0039] Optionally, the first electrode pad, the third electrode pad and the fifth electrode pad are arranged in a row along the first direction, and the first electrode pad is located between the third electrode pad and the fifth electrode pad;

[0040] A group of the first signal lines further includes: a second common electrode signal line, the second common electrode signal line having the first bending structure and the second bending structure;

[0041] The first electrode pad is electrically connected to the second bending structure of the first common electrode signal line, and the third electrode pad and the fifth electrode pad are electrically connected to the second common electrode signal line at the same time.

[0042] Optionally, the second common electrode signal line is closer to the plurality of light-emitting parts in the light-emitting unit than the first common electrode signal line;

[0043] The bending degree of the first bending structure in the second common electrode signal line is smaller than that of the first bending structure in the first common electrode signal line; the bending degree of the second bending structure in the second common electrode signal line is smaller than that of the second bending structure in the first common electrode signal line.

[0044] Optionally, the first light-emitting portion is a red light-emitting portion for emitting red light, the second light-emitting portion is one of a green light-emitting portion for emitting green light and a blue light-emitting portion for emitting blue light, and the third light-emitting portion is the other of the green light-emitting portion and the blue light-emitting portion.

[0045] Optionally, the at least one first signal line includes: a plurality of first extension portions and a plurality of second extension portions, and a first connecting portion for connecting the first extension portions and the second extension portions, the plurality of first extension portions and the plurality of second extension portions are alternately arranged one by one, and an extending direction of the first extension portion is parallel to an extending direction of the second extension portion, the first connecting portion is located between adjacent first extension portions and second extension portions, and the first extension portion is connected to one end of the first connecting portion, and the second extension portion is connected to the other end of the first connecting portion;

[0046] The first extension portion and the two first connection portions connected to both ends of the first extension portion constitute a first bending structure, and the second extension portion and the two first connection portions connected to both ends of the second extension portion constitute a second bending structure.

[0047] Optionally, part of the functional portion extends into a region enclosed by the first bending structure and an extension line of the second extension portion at a position where the first bending structure is located.

[0048] Optionally, a group of second signal lines includes at least one second signal line, the at least one second signal line having: a plurality of third bending structures and a plurality of fourth bending structures, the plurality of third bending structures and the plurality of fourth bending structures being alternately arranged one by one, and an opening direction of the third bending structure being opposite to an opening direction of the fourth bending structure;

[0049] Wherein, the opening of the third bending structure faces the functional portion, and the opening of the fourth bending structure faces the light-emitting unit.

[0050] Optionally, the back plate has a device fixing area and a sound-transmitting area distributed around the device fixing area;

[0051] Wherein, in the sound-transmitting area, the through hole is provided in the area surrounded by adjacent first signal lines and adjacent second signal lines; in the device fixing area, the through hole is not provided in the area surrounded by adjacent first signal lines and adjacent second signal lines.

[0052] Optionally, the display panel further includes: a driving control module fixed on the back of the display panel, the driving control module is distributed in the device fixing area, and the driving control module is configured to send driving signals to the first signal line and the second signal line.

[0053] Optionally, the backplane is a printed circuit board, or

[0054] The backplane includes a substrate, the first signal line and the second signal line are located on one side of the substrate, and the substrate is made of glass.

[0055] On the other hand, a display module is provided, characterized in that it includes: a box body, a display panel located on one side of the box body, and a speaker located between the box body and the display panel, the sound output surface of the speaker facing the display panel; the display panel is the above-mentioned display panel.

[0056] Optionally, the display module further includes: a signal access circuit board located between the housing and the display panel, the signal access circuit board being configured to be electrically connected to a drive control module in the display panel;

[0057] Wherein, the surface where the signal access circuit board is located intersects with the surface where the display panel is located.

[0058] Optionally, there are multiple display panels, and the multiple display panels are arranged in an array;

[0059] The box body has a receiving cavity, the number of the signal access circuit board is at least one, and the at least one signal access circuit board and the speaker are both located in the receiving cavity;

[0060] Wherein, in a direction parallel to the sound emitting surface of the speaker, the signal access circuit board is distributed on at least one side of the speaker in the accommodating cavity.

[0061] On the other hand, a display system is provided, characterized in that it includes: a plurality of spliced ​​first display modules, and the first display modules are the above-mentioned display modules.

[0062] The display system further includes: a plurality of spliced ​​second display modules, the second display modules being spliced ​​with the first display module; wherein the second display modules include: a plurality of spliced ​​passive display panels.

[0063] Optionally, the display system further includes: a control device electrically connected to the first display module and the second display module;

[0064] In which, the control device is used to: divide the original film source to be displayed into a first video source corresponding to the first display module and a second video source corresponding to the second display module according to the position information of each first display module and the position information of each second display module, and send the corresponding first video source to each first display module and send the corresponding second video source to each second display module.

[0065] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0066] A display panel includes: a back panel and a plurality of light-emitting units. In the back panel of the display panel, a through hole penetrating the back panel is provided in an area surrounded by at least part of adjacent first signal lines and adjacent second signal lines. In this way, through holes can be distributed in the back panel of the display panel, and these through holes can serve as sound-permeable holes. Even if a speaker is installed on the back of the display panel, the sound produced by the speaker can be transmitted from the sound-permeable holes in the display panel to ensure that the display panel does not block the sound produced by the speaker. For this reason, this display panel can be used as a sound-permeable display panel, and the sound produced by the speaker installed on the back of the display panel can be directly transmitted from the display surface of the display panel. In this way, this display panel can have both a display function and a sound-permeable function, which effectively enriches the function of the display panel and makes the use effect of the display panel better. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0068] FIG1 is a top view of a display panel provided in an embodiment of the present application;

[0069] FIG2 is a partial enlarged view of the display panel at point A shown in FIG1 ;

[0070] FIG3 is a top view of a backplane provided in an embodiment of the present application;

[0071] FIG4 is a partial enlarged view of the back plate at position B shown in FIG3 ;

[0072] FIG5 is a schematic structural diagram of a first signal line provided in an embodiment of the present application;

[0073] FIG6 is a schematic structural diagram of another first signal line provided in an embodiment of the present application;

[0074] FIG7 is a partial enlarged view of the back plate at C shown in FIG4;

[0075] FIG8 is a schematic diagram showing a back panel shown in FIG7 after a light emitting unit is provided;

[0076] FIG9 is a schematic structural diagram of a second signal line provided in an embodiment of the present application;

[0077] FIG10 is a schematic structural diagram of another second signal line provided in an embodiment of the present application;

[0078] FIG11 is a top view of another display panel provided in an embodiment of the present application;

[0079] FIG12 is a top view of a display module provided in an embodiment of the present application;

[0080] FIG13 is an exploded view of the display module shown in FIG12;

[0081] FIG14 is a schematic structural diagram of a display system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0082] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0083] 1 and 2 , FIG1 is a top view of a display panel provided in an embodiment of the present application, and FIG2 is a partial enlarged view of the display panel shown in FIG1 at point A. The display panel 000 may include: a backplane 100 and a plurality of light-emitting units 200 .

[0084] The multiple light-emitting units 200 in the display panel 000 can be located on one side of the backplane 100, and the multiple light-emitting units 200 can be arranged in an array on one side of the backplane 100. Each light-emitting unit 200 may include: a driving unit 202 fixed to the backplane 100 and multiple light-emitting units 201. Here, the light-emitting unit 201 in the light-emitting unit 000 is an LED chip. It should be noted that the LED chip can be an LED chip of ordinary size, a mini light-emitting diode (English: mini Light-Emitting Diode, abbreviated: mini-LED) chip, or a micro LED (English: Micro Light-Emitting Diode, abbreviated: Micro-LED) chip. The driving unit 202 in the light-emitting unit 200 is a driving chip. Each light-emitting unit 200 is provided with a driving unit 202, and this driving unit 202 can be electrically connected to each light-emitting unit 201 in the light-emitting unit 200. For example, the multiple light-emitting units 201 in the light-emitting unit 000 are independently packaged and fixed to the backplane 100. For another example, the multiple light-emitting parts 201 in the light-emitting unit 000 can be located in an integrated chip as a whole, that is, the multiple light-emitting parts 201 are packaged together into a light-emitting chip, and this light-emitting chip can be fixed on the back plate 100.

[0085] In the light-emitting unit 200, the light-emitting state and light-emitting brightness of each light-emitting unit 201 can be individually controlled by the driving unit 202. Therefore, the display panel 000 provided in the embodiment of the present application is an active display panel.

[0086] The backplane 100 in the display panel 000 integrates multiple groups of first signal lines 101 and multiple groups of second signal lines 102. A group of first signal lines 101 may include at least two first signal lines 101, for example, a group of first signal lines 101 may include three first signal lines 101; a group of second signal lines 102 may include at least one second signal line 102, for example, a group of second signal lines 102 may include one second signal line 102.

[0087] A set of first signal lines 101 can be electrically connected to each of the light-emitting units 200 arranged along a first direction X; a set of second signal lines 102 can be electrically connected to each of the light-emitting units 200 arranged along a second direction Y. Here, the first direction X is different from the second direction Y. For example, the first direction X can be perpendicular to the second direction Y.

[0088] For example, the extended surface of the backplane 100 can be a plane or a curved surface, and the extended surface of the backplane 100 is defined as the side surface of the backplane on which the light-emitting units 200 are arranged. For example, if the extended surface of the backplane 100 is a plane, in this case, the first direction X is the extension direction of a straight line parallel to the extended surface of the backplane 100, and the second direction Y is the extension direction of another straight line parallel to the extended surface of the backplane 100, and the two straight lines are not parallel. For another example, if the extended surface of the backplane 100 is a curved surface, in this case, the first direction X is the extension direction of a curve conforming to the extended surface of the backplane 100, and the second direction Y is the extension direction of another curve conforming to the extended surface of the backplane 100, and the two curves are not parallel.

[0089] For example, the plurality of light-emitting units 200 may be arranged in a plurality of rows and columns along the first direction X and the second direction Y. The light-emitting units 200 in each row of light-emitting units 200 may be arranged in the second direction Y, and the light-emitting units 200 in each column of light-emitting units 200 may be arranged in the first direction X. To this end, a group of first signal lines 101 may be electrically connected to a column of light-emitting units 200, and a group of second signal lines 102 may be electrically connected to a row of light-emitting units 200.

[0090] The functional portion is disposed in an area enclosed by at least a portion of the adjacent first signal lines 102 and the adjacent second signal lines 202 .

[0091] For example, in the back panel 100 in the display panel 000, two groups of adjacent first signal lines 101 and two groups of adjacent second signal lines 102 are used to enclose a functional area P. To this end, the back panel 100 may have a plurality of functional areas P arranged in an array, and at least part of the functional areas P in the back panel 100 may be provided with a functional part. In one possible case, the functional part may be a through hole K. In this case, through holes K may be distributed in the back panel 100 in the display panel 000, and these through holes K may serve as sound-permeable holes. In this way, even if a speaker is set on the back of the display panel 000, the sound emitted by the speaker can also be transmitted from the sound-permeable holes in the display panel 000 to ensure that the display panel 000 does not block the sound emitted by the speaker. To this end, this display panel 000 can be used as a sound-permeable display panel, and the sound emitted by the speaker set on the back of the display panel 000 can be directly transmitted from the display surface of the display panel 000. In this way, the display panel 000 can have both a display function and a sound-transmitting function, which effectively enriches the functions of the display panel 000 and makes the display panel 000 have a better use effect.

[0092] In summary, the display panel provided by the embodiment of the present application includes: a backplane and a plurality of light-emitting units. In the backplane of the display panel, a through hole penetrating the backplane is provided in the area surrounded by at least part of the adjacent first signal lines and the adjacent second signal lines. In this way, through holes can be distributed in the backplane of the display panel, and these through holes can be used as sound-permeable holes. Even if a speaker is set on the back of the display panel, the sound emitted by the speaker can be transmitted from the sound-permeable holes in the display panel to ensure that the display panel does not block the sound emitted by the speaker. For this reason, this display panel can be used as a sound-permeable display panel, and the sound emitted by the speaker set on the back of the display panel can be directly transmitted from the display surface of the display panel. In this way, this display panel can have both a display function and a sound-permeable function, which effectively enriches the function of the display panel and makes the use effect of the display panel better.

[0093] In another possible scenario, the through hole K can function as a light-transmitting hole, allowing light from one side of the display panel 000 to pass through the through hole K and exit from the other side of the display panel 000, thereby achieving a transparent display. In this case, the through hole K allows the user to see both the image displayed by the display panel 000 and the image behind the display panel 000, providing a unique viewing experience.

[0094] In another possible scenario, the through hole K can serve as a light-transmitting hole so that light on one side of the display panel 000 passes through the through hole K and exits from the other side of the display panel 000. Therefore, an image acquisition unit (such as a camera or a camera) can be installed on the non-display side of the display panel 000. In this way, the under-screen image acquisition function can be realized in the display area.

[0095] It should be noted that, in other optional implementations, it is also possible not to set a through hole in the functional area P, but to use the functional area P to achieve other functions. For example, the backplane 100 includes a substrate that is transparent to the target light. In the functional area P, since the first signal line 101 and the second signal line 102 do not pass through this area, the area can pass through the target light to achieve a transparent display; wherein, the target light can be visible light, and the substrate that is transparent to the target light can be a glass substrate. Other functional parts can also be set in the functional area P so that the display panel can have corresponding functions. For example, the functional part that can be placed in the functional area P is a light sensor, so that the display panel also has the function of sensing external light. For example, the functional area P can also be provided with a fingerprint recognition unit, an NFC unit, an antenna unit, etc.

[0096] In order to more clearly see the structure of the backplane 100 in the display panel 000, please refer to Figures 3 and 4. Figure 3 is a top view of a backplane provided in an embodiment of the present application, and Figure 4 is a partial enlarged view of the backplane shown in Figure 3 at point B. A group of first signal lines 101 in the backplane 100 can include multiple first signal lines 101. In order to more clearly see the structure of the first signal lines 101 integrated in the backplane 100, please refer to Figure 5, which is a structural schematic diagram of a first signal line provided in an embodiment of the present application. At least one first signal line 101 in the group of first signal lines 101 can have: multiple first bending structures 1011 and multiple second bending structures 1012. Among them, in the first signal line 101, the multiple first bending structures 1011 and the multiple second bending structures 1012 can be arranged alternately one by one, and the opening direction of the first bending structure 1011 can be opposite to the opening direction of the second bending structure 1012. For example, the opening of the first bending structure 1011 may face the left side of the first signal line 101 , and the opening of the second bending structure 1012 may face the right side of the first signal line 101 .

[0097] For example, please refer to Figure 6, which is a schematic structural diagram of another first signal line provided in an embodiment of the present application. At least one first signal line 101 may include: a plurality of first extension portions E1 and a plurality of second extension portions E2, and a first connecting portion E3 for connecting the first extension portion E1 and the second extension portion E2. Here, the plurality of first extension portions E1 and the plurality of second extension portions E2 in the first signal line 101 can be arranged alternately one by one, and the extension direction of the plurality of first extension portions E1 can be parallel to the extension direction of the second extension portion E2. For example, the extension direction of the first extension portion E1 and the extension direction of the second extension portion E2 are both parallel to the first direction X. The first connecting portion E3 in the first signal line 101 can be located between the first extension portion E1 and the second extension portion E2, and the first extension portion E1 can be connected to one end of the first connecting portion E3, and the second extension portion E2 can be connected to the other end of the second connecting portion E3.

[0098] The extension direction of the first connecting portion E3 may intersect with the extension direction of the first extending portion E1 and may intersect with the extension direction of the second extending portion E2. In this case, the first extending portion E1 and the two first connecting portions E3 connected to the ends of the first extending portion E1 can form a first bending structure 1011; the second extending portion E2 and the two first connecting portions E3 connected to the ends of the second extending portion E2 can form a second bending structure 1012.

[0099] In the present application, the opening of the first bending structure 1011 in the first signal line 101 can be oriented toward the functional portion. In one possible implementation, when the functional portion is a through hole K, a portion of the through hole K provided in the functional area P can extend into the area enclosed by the first bending structure 1011. Here, the area enclosed by the first bending structure 1011 refers to the area enclosed by the extension lines of the first bending structure 1011 and the second extension E2 at the location of the first bending structure 1011. In this way, by providing the first bending structure 1011 in the first signal line 101 and allowing a portion of the through hole K to extend into the area enclosed by the first bending structure 1011, the opening area of ​​the through hole K provided in the functional area P can be effectively increased, making the size of the through hole K larger, which is more conducive to allowing the sound emitted by the speaker provided on the back of the display panel 000 to pass through the through hole K, thereby effectively reducing the energy loss generated when the speaker produces sound.

[0100] In an embodiment of the present application, as shown in Figures 7 and 8, Figure 7 is a partial enlarged view of the backplane shown in Figure 4 at C, and Figure 8 is a schematic diagram after a light-emitting unit is provided on the backplane shown in Figure 7. At least one light-emitting portion 201 in the light-emitting unit 200 in the display panel 000 can be electrically connected to the first signal line 101. For example, for the light-emitting unit 200 in the display panel 000, each light-emitting portion 201 in the light-emitting unit 200 can be electrically connected to a portion of the first signal lines 101 in a corresponding group of first signal lines 101, and the driving portion 202 in the light-emitting unit 200 can be electrically connected to another portion of the first signal lines 101 in a corresponding group of first signal lines 101, and to a corresponding group of second signal lines 102.

[0101] In this application, the opening of the second bending structure 1012 in the first signal line 101 can face the light emitting unit 200. In this way, the light emitting unit 200 in the display panel 000 does not occupy too much functional area P, thereby ensuring that a larger through hole K can be set in the functional area P.

[0102] Optionally, as shown in Figure 8, the number of the multiple light-emitting parts 201 in the light-emitting unit 200 is three, and these three light-emitting parts 201 are respectively used to emit red light, green light and blue light. For example, the multiple light-emitting parts 201 in the light-emitting unit 200 can be: a first light-emitting part 201a, a second light-emitting part 201b and a third light-emitting part 201c. Here, the first light-emitting part 201a can be a red light-emitting part for emitting red light, the second light-emitting part 201b can be one of a green light-emitting part for emitting green light and a blue light-emitting part for emitting blue light, and the third light-emitting part 201c can be the other of the green light-emitting part and the blue light-emitting part. The embodiments of the present application are all schematically explained by taking the second light-emitting part 201b as a green light-emitting part and the third light-emitting part 201c as a blue light-emitting part as an example.

[0103] As shown in Figures 4, 7 and 8, the back panel 100 in the display panel 000 also integrates a first pad group S10 electrically connected to the first light-emitting portion 201a, a second pad group S20 electrically connected to the second light-emitting portion 201b, a third pad group S30 electrically connected to the third light-emitting portion 201c, and a driving pad group S40 electrically connected to the driving portion 202 in the light-emitting unit 200.

[0104] The first pad group S10 corresponding to the first light-emitting portion 201a may include: a first electrode pad S11 and a second electrode pad S12. Here, one of the first electrode pad S11 and the second electrode pad S12 may be an anode pad, and the other of the first electrode pad S11 and the second electrode pad S12 may be a cathode pad. The first light-emitting portion 201a may have an anode pin and a cathode pin. The anode pin and the cathode pin of the first light-emitting portion 201a may be welded to the first pad group S10, so that the first light-emitting portion 201a can be fixed to the substrate 100 and electrically connected to the backplane 100 via the first electrode pad S11 and the second electrode pad S12 in the first pad group S10.

[0105] The second pad group S20 corresponding to the second light-emitting portion 201b may include: a third electrode pad S21 and a fourth electrode pad S22. Here, one of the third electrode pad S21 and the fourth electrode pad S22 may be an anode pad, and the other of the third electrode pad S21 and the fourth electrode pad S22 may be a cathode pad. The second light-emitting portion 201b may have an anode pin and a cathode pin. The anode pin and the cathode pin of the second light-emitting portion 201b may be welded to the second pad group S20, so that the second light-emitting portion 201b can be fixed to the substrate 100 and electrically connected to the backplane 100 via the third electrode pad S21 and the fourth electrode pad S22 in the second pad group S20.

[0106] The third pad group S30 corresponding to the third light-emitting portion 201c may include a fifth electrode pad S31 and a sixth electrode pad S32. Here, one of the fifth electrode pad S31 and the sixth electrode pad S32 may be an anode pad, and the other of the fifth electrode pad S31 and the sixth electrode pad S32 may be a cathode pad. The third light-emitting portion 201c may have an anode pin and a cathode pin. The anode pin and the cathode pin of the third light-emitting portion 201c may be soldered to the third pad group S30, so that the third light-emitting portion 201c can be fixed to the substrate 100 and electrically connected to the backplane 100 via the fifth electrode pad S31 and the sixth electrode pad S32 of the third pad group S30.

[0107] The driving pad group S40 corresponding to the driving unit 202 may include: a first signal output pad S41, a second signal output pad S42, a third signal output pad S43, a first access pad S44, a second access pad S45, and a ground pad S46. The light-emitting unit 202 may have six pins, and the six pins of the light-emitting unit 202 may be soldered to the driving pad group S40, so that the driving unit 202 can be fixed to the substrate 100 and electrically connected to the backplane 100 through the six pads in the driving pad group S40.

[0108] Among them, the first signal output pad S41 in the driving pad group S40 can be electrically connected to the second electrode pad S12 in the first pad group S10; the second signal output pad S42 in the driving pad group S40 can be electrically connected to the fourth electrode pad S22 in the second pad group S20; and the third signal output pad S43 in the driving pad group S40 can be electrically connected to the sixth electrode pad S32 in the third pad group S30. In this case, the driving part 202 in the light-emitting unit 200 can be electrically connected to each light-emitting part 201 through the pads arranged in the backplane 100.

[0109] In the present application, the first electrode pad S11 in the first pad group S10 , the third electrode pad S21 in the second pad group S20 , and the fifth electrode pad S31 in the third pad group S30 can all be connected to a portion of the first signal lines 101 in a group of first signal lines 101 .

[0110] In a possible case, the first electrode pad S11 , the third electrode pad S21 , and the fifth electrode pad S31 may be connected to three first signal lines 101 , respectively.

[0111] In another possible scenario, two of the first electrode pad S11 , the third electrode pad S21 , and the fifth electrode pad S31 may be connected to the same first signal line 101 , and the other electrode pad may be connected to another first signal line 101 .

[0112] For example, the first electrode pad S11 and the fifth electrode pad S31 are the same pad, and this pad can be electrically connected to a first signal line 101, and the third electrode pad S21 can be electrically connected to another first signal line 101; or, the first electrode pad S11 and the third electrode pad S21 are the same pad, and this pad can be electrically connected to a first signal line 101, and the fifth electrode pad S21 can be electrically connected to another first signal line 101; or, the third electrode pad S21 and the fifth electrode pad S31 are the same pad, and this pad can be electrically connected to a first signal line 101, and the first electrode pad S11 can be electrically connected to another first signal line 101.

[0113] In this way, for the three light-emitting parts 201 in the light-emitting unit 200, two light-emitting parts 201 among the three light-emitting parts 201 can be connected to the same first signal line 101 at the same time, and this first signal line can provide a common voltage signal to the two light-emitting parts 201 in the light-emitting unit 200 at the same time; another light-emitting part 201 among the three light-emitting parts 201 can be connected to another first signal line 101, and this first signal line can provide another common voltage signal to another light-emitting part 201 in the light-emitting unit 200.

[0114] Of course, in other possible implementations, the two electrode pads connected to the same first signal line 101 may also be two independent pads, and the two independent pads are respectively electrically connected to the same first signal line 1011, which can also ensure that the two light-emitting portions 201 in the light-emitting unit 200 are simultaneously connected to the same first signal line 101. This embodiment of the present application is not limited to this.

[0115] In another possible case, the first electrode pad S11 , the third electrode pad S21 , and the fifth electrode pad S31 may all be connected to the same first signal line 101 .

[0116] For example, the first electrode pad S11, the third electrode pad S21, and the fifth electrode pad S31 can be the same pad, and this pad can be electrically connected to a first signal line 101. In this way, the first light-emitting portion 201a, the second light-emitting portion 201b, and the third light-emitting portion 201c in the light-emitting unit 200 can be connected to the same first signal line 101 at the same time, and this first signal line 101 can provide a common voltage signal to each light-emitting portion 201 in the light-emitting unit 200 at the same time.

[0117] Of course, in other possible implementations, the first electrode pad S11, the third electrode pad S21, and the fifth electrode pad S31 may be three independent pads, and these three independent pads are electrically connected to the same first signal line 1011, respectively. This can also ensure that the first light-emitting portion 201a, the second light-emitting portion 201b, and the third light-emitting portion 201c in the light-emitting unit 200 are simultaneously connected to the same first signal line 101. This embodiment of the present application is not limited to this.

[0118] It should be noted that the drawings in the embodiments of the present application are schematically illustrated by taking the first electrode pad S11 , the third electrode pad S21 and the fifth electrode pad S31 as three independent pads as an example.

[0119] It should also be noted that, in the red light-emitting unit 200, the luminous characteristics of the red light-emitting portion when emitting red light differ significantly from the luminous characteristics of the green light-emitting portion when emitting green light, and also differ significantly from the luminous characteristics of the blue light-emitting portion when emitting blue light, while the luminous characteristics of the green light-emitting portion when emitting green light differ slightly from the luminous characteristics of the blue light-emitting portion when emitting blue light. Therefore, the green light-emitting portion and the blue light-emitting portion can be connected to the same first signal line 101, and the red light-emitting portion can be connected to another first signal line 101. In this case, it is assumed that, in the light-emitting unit 200, the first light-emitting portion 201a can be a red light-emitting portion for emitting red light, the second light-emitting portion 201b can be a green light-emitting portion for emitting green light, and the third light-emitting portion 201c can be a blue light-emitting portion for emitting blue light. The third electrode pad S21 in the second pad group S20 corresponding to the second light-emitting portion 201b and the fifth electrode pad S31 in the third pad group S30 corresponding to the third light-emitting portion 201b can be electrically connected to the same signal line 101, and the first conductive pad S10 corresponding to the first light-emitting portion 201a can be electrically connected to another signal line 101.

[0120] In the embodiment of the present application, the first electrode pad S11 in the first pad group S10 corresponding to the first light-emitting portion 201a can be electrically connected to the second meandering structure 1012 in the first signal line 101. In this case, the first light-emitting portion 201a can be electrically connected to the second meandering structure 1012 via the first electrode pad S11 in the first pad group S10, so that the first light-emitting portion 201a can be connected to the first signal line 101 with the second meandering structure 1012.

[0121] For example, the orthographic projections of the driver 202 and each light-emitting portion 201 in the light-emitting unit 200 on the plane of the backplane 100 can overlap with the orthographic projections of a corresponding group of first signal lines 101 on the plane of the backplane 100. Therefore, when the opening of the second bending structure 1012 in the first signal line 101 faces the light-emitting unit 200, and the first light-emitting portion 201a in the light-emitting unit 200 is connected to the first signal line 101 through the second bending structure 1012, the space occupied by the light-emitting unit 200 in the functional area P can be further reduced, thereby further increasing the size of the through hole K provided in the functional area P.

[0122] Optionally, as shown in FIG4 , a group of first signal lines 101 in the backplane 100 may include: a first common electrode signal line L1. The first electrode pad S11 in the first pad group S10 in the backplane 100 may be electrically connected to the first common electrode signal line L1. For example, the first common electrode signal line L1 may have a first bending structure 1011 and a second bending structure 1012. As shown in FIG7 , the first electrode pad S11 in the first pad group S10 in the backplane 100 may be electrically connected to the second bending structure 1012 in the first common electrode signal line L1, so that the first light-emitting portion 201a corresponding to the first pad group S10 can be connected to the first common electrode signal line L2. For example, a first transfer signal line Z1 is also integrated in the backplane 100, and the first electrode pad S11 can be electrically connected to the second bending structure 1012 in the first common electrode signal line L1 through the first transfer signal Z1. Here, the first light-emitting portion 201a of each light-emitting unit 200 in the light-emitting units 200 arranged in a column in the first direction X can be connected to the same first common electrode signal line L1 through the corresponding first electrode pad S11, so that the first common electrode signal line L1 can provide the same first common voltage signal to each first light-emitting portion 201a in a column of light-emitting units 200.

[0123] A group of first signal lines 101 in the backplane 100 may further include: a second common electrode signal line L2. The third electrode pad S21 and the fifth electrode pad S31 may be electrically connected to the second common electrode signal line L2 at the same time. Preferably, the third electrode pad S21 in the second pad group S20 in the backplane 100 may be electrically connected to the second bending structure 1012 in the second common electrode signal line L2, and the fifth electrode pad S31 in the third pad group S30 in the backplane 100 may also be electrically connected to the second bending structure 1012 in the second common electrode signal line L2. In the present application, the second common electrode signal line L2 may also have a first bending structure 1011 and a second bending structure 1012. In this way, the third electrode pad S21 and the fifth electrode pad S31 may both be electrically connected to the second common electrode signal line L2 at the same time by being electrically connected to the second bending structure 1022. For example, the backplane 100 is integrated with a second transfer signal line Z2 and a third transfer signal line Z3. The third electrode pad S21 can be electrically connected to the second bend structure 1012 in the second common electrode signal line L2 via the second transfer signal Z2, and the fifth electrode pad S31 can be electrically connected to the second bend structure 1012 in the second common electrode signal line L2 via the third transfer signal Z3. Here, the second light-emitting portion 201b and the third light-emitting portion 201c of each light-emitting unit 200 arranged in a column in the first direction X can be connected to the same second common electrode signal line L2 via the corresponding third electrode pad S21 and the corresponding fifth electrode pad S31, so that the second common electrode signal line L2 can provide the same second common voltage signal to each second light-emitting portion 201b and each third light-emitting portion 201c in the light-emitting unit 200 in the column.

[0124] It should be noted that the first common voltage signal and the second common voltage signal in the above embodiment can both be anode signals or cathode signals, but it is necessary to ensure that the voltage values ​​of the first common voltage signal and the second common voltage signal are different.

[0125] Optionally, the group of first signal lines 101 in the backplane 100 may further include a third common electrode signal line. Here, the third electrode pad S21 in the second pad group S20 in the backplane 100 may be electrically connected to one of the second common electrode signal line L2 and the third common electrode signal line, and the fifth electrode pad S31 in the third pad group S30 in the backplane 100 may also be electrically connected to the second common electrode signal line L2 and the other of the third common electrode signal line. In this way, voltages can be supplied to the second light-emitting portion 201b and the third light-emitting portion 201c, respectively.

[0126] It should be noted that the first common voltage signal, the second common voltage signal, and the third common voltage signal in the above embodiments can all be anode signals, or all be cathode signals; for example, the first common voltage signal, the second common voltage signal, and the third common voltage signal have different volt values.

[0127] In the present application, the extension direction of the first common electrode signal line L1 and the second common electrode signal line L2 is the same. In this way, the distribution of the first bending structure 1011 and the second bending structure 1012 in the first common electrode signal line L1 is consistent with the distribution of the first bending structure 1011 and the second bending structure 1012 in the second common electrode signal line L2. To this end, the opening of the first bending structure 1011 in the first common electrode signal line L1 and the opening of the first bending structure 1011 in the second common electrode signal line L2 can both face the through hole K; the opening of the second bending structure 1012 in the first common electrode signal line L1 and the opening of the second bending structure 1012 in the second common electrode signal line L2 can both face the light-emitting unit 200.

[0128] Optionally, since the three light-emitting portions 201 in the light-emitting unit 200 can generally be arranged in a column along the first direction X, within the backplane 100, in the first pad group S10, the second pad group S20, and the third pad group S30 corresponding to one light-emitting unit 200, the first electrode pad S11 in the first pad group S10, the third electrode pad S21 in the second pad group S20, and the fifth electrode pad S31 in the third pad group S30 can be arranged as a first column of electrode pads along the first direction X. Here, the first electrode pad S11 can be distributed between the third electrode pad S21 and the fifth electrode pad S31. Correspondingly, in the backplane 100, the second electrode pad S12 in the first pad group S10, the fourth electrode pad S22 in the second pad group S20, and the sixth electrode pad S32 in the third pad group S30 can also be arranged as a second column of electrode pads along the first direction X, and the second electrode pad S12 can be distributed between the fourth electrode pad S22 and the fifth electrode pad S32.

[0129] In this case, since the first signal line 101 in the backplane 100 and the various pads and various transfer signal lines in the backplane 100 are arranged in different layers, the various pads in the backplane 100 and the various transfer signal lines are arranged in the same layer. That is, in the backplane 100, there is an insulating layer between the conductive layer where the first signal line 101 is located and the conductive layer where the pad is located, and the conductive layer where the pad is located and the conductive layer where the transfer signal line is located are connected through a conductive layer. Therefore, the pad can be directly electrically connected to the transfer signal line. For example, the first electrode pad S11 can be directly electrically connected to the first transfer signal line Z1. The first common electrode signal line L1 in a group of first signal lines 101 and the first transfer signal line Z1 need to be electrically connected using the third via V3, and the second common electrode signal line L2 in a group of first signal lines 101 and the second transfer signal line Z2 need to be electrically connected using the fourth via V4. The second common electrode signal line L2 also needs to be electrically connected to the third transfer signal line Z3 using the fifth via V5. Here, the third via hole V3, the fourth via hole V4, and the fifth via hole V5 can all penetrate the insulating layer between the conductive layer where the first signal line 101 is located and the conductive layer where the pad is located. Furthermore, since the via holes provided in the insulating layer have a large area, and the first common electrode signal line L1 only needs to be electrically connected to the first electrode pad S11 through the third via hole V3, the second common electrode signal line L2 needs to be electrically connected to the third electrode pad S21 and the fifth electrode pad S22 through the fourth via hole V4 and the fifth via hole V5, respectively. Therefore, when the first electrode pad S11 is located between the third electrode pad S21 and the fifth electrode pad S31, in the first direction, the first transfer signal line Z1 is also located between the second transfer signal line Z2 and the third transfer signal line Z3, and the fourth via V4 and the fifth via V5 can be arranged on both sides of the third via V2 in the first direction X, so that the third via V3, the fourth via V4 and the fifth via V5 are distributed more compactly in the first direction X, thereby making the arrangement of each first signal line 101 in a group of first signal lines 101 more compact, effectively reducing the occupied space of a group of first signal lines 101, and further increasing the area of ​​the functional area P.

[0130] Optionally, within a group of first signal lines 101, the second common electrode signal line L2 is closer to the plurality of light-emitting portions 201 in the light-emitting unit 200 than the first common electrode signal line L1. In this case, in the first direction X, the first transfer signal line Z1 can be located between the fourth via V3 and the fifth via V5, which can further improve the compactness of the arrangement of the first signal lines 101 within the group of first signal lines 101.

[0131] Furthermore, when the second common electrode signal line L2 also includes the first bending structure 1011 and the second bending structure 1012, the bending degree of the first bending structure 1011 in the second common electrode signal line L2 is smaller than the bending degree of the first bending structure 1011 in the first common electrode signal line L1, and at least a portion of the first bending structure 1011 in the second common electrode signal line L2 can be located within the area enclosed by the first bending structure 1011 in the first common electrode signal line L1. Similarly, the bending degree of the second bending structure 1012 in the second common electrode signal line L2 can be smaller than the bending degree of the second bending structure 1012 in the first common electrode signal line L1, and at least a portion of the second bending structure 1012 in the second common electrode signal line L2 can be located within the area enclosed by the second bending structure 1012 in the first common electrode signal line L1. In this case, the distance between the first common electrode signal line L1 and the second common electrode signal line L2 in a group of first driving signal lines 101 can be kept small, so that the first signal lines 101 in a group of first signal lines 101 are arranged more compactly.

[0132] In an embodiment of the present application, a group of first signal lines 101 may further include: a data signal line L3. It should be noted that FIG4 shows a signal line with the data signal line L3 extending along the first direction X. The first bending structure 1011 and the second bending structure 1012 are not provided in the data signal line L3. In other possible implementations, the first bending structure 1011 and the second bending structure 1012 may also be provided in the data signal line L3. This embodiment of the present application is not limited to this. The data signal line L3 may be electrically connected to the first access pad S44 in the driving pad group S40, so that the driving part 202 corresponding to the driving pad group S40 can be connected to the data signal line L3. It should be noted that in order to facilitate the connection of each light-emitting part 201 in the light-emitting unit 200 to the corresponding common electrode signal line, it is necessary to ensure that in the second direction Y, each light-emitting part 201 in the light-emitting unit 200 is closer to the common electrode signal line relative to the driving part 202. Since the second common electrode signal line L2 in a group of first signal lines 101 is closer to the multiple light-emitting parts 201 in the light-emitting unit 200 than the first common electrode signal line L1, in this application, in order to facilitate the connection of the driving part in the light-emitting unit 200 to the data signal line L3, the data signal line L3 can be set on the side of the second common electrode signal line L2 away from the first common electrode signal line L1 within a group of first driving signal lines 101.

[0133] For example, a fourth transfer signal line Z4 is also integrated in the backplane 100, and the first access pad S44 can be electrically connected to the data signal line L3 through the fourth transfer signal line Z4. Here, the driving unit 202 of each light-emitting unit 200 in the light-emitting units 200 arranged in a column in the first direction X can be connected to the same data signal line L3 through the corresponding first access pad S44, so that the data signal line L3 can provide the same data signal to each driving unit 202 in a column of light-emitting units 200. It should be noted that the first access pad S44 and the data signal line L3 are arranged in different layers. Therefore, the backplane 100 can have a first via V1 for connecting the first access pad S44 and the data signal line L3. For example, since the fourth transfer signal line Z4 can be set on the same layer as the first access pad S44, one end of the fourth transfer signal line Z4 can be directly electrically connected to the first access pad S44, and the other end of the fourth transfer signal line Z4 can be electrically connected to the data signal line L3 through the first via V1.

[0134] Optionally, within the driving pad group S40, the first access pad S43 may be arranged in a column with at least two signal output pads. Here, the at least two signal output pads within the driving pad group S40 may be at least two of the first signal output pad S41, the second signal output pad S42, and the third signal output pad S43. For example, the first access pad S43 and the at least two signal output pads within the driving pad group S40 may be arranged along the first direction X.

[0135] In this case, since the extension direction of the data signal line L3 can also be parallel to the first direction X, the orthographic projection of the data signal line L3 on the plane where the backplane 100 is located can overlap with the orthographic projections of the first access pads S41 and the signal output pads arranged in a row along the first direction on the plane where the backplane 100 is located. In this way, the distance between the data signal line L3 and the second common electrode signal line L2 within a group of first signal lines 101 can be ensured to be relatively close, making the arrangement of the first signal lines 101 within this group of first signal lines 101 more compact.

[0136] In an embodiment of the present application, the second access pad S45 in the driving pad group S40 can be electrically connected to the second signal line 102. Here, a group of second signal lines 102 generally includes only one second signal line 102, and this second signal line 102 can be a power signal line, so that the driving part 202 corresponding to the driving pad group S40 can be connected to the power signal line. For example, the backplane 100 is also integrated with a fifth transfer signal line Z5, and the second access pad S45 can be electrically connected to the power signal line through the fifth transfer signal line Z5. Here, the driving parts 202 of each light-emitting unit 200 in the light-emitting units 200 arranged in a row in the second direction Y can all be connected to the same power signal line through the corresponding second access pad S45, so that the power signal line can provide the same power signal to each driving part 202 in a row of light-emitting units 200. It should be noted that the second access pad S45, the power signal line and the fifth transfer signal line Z5 are arranged on the same layer. Therefore, one end of the fifth transfer signal line Z5 can be directly electrically connected to the second access pad S45, and the other end can be directly electrically connected to the power signal line.

[0137] The ground pad S46 in the driving pad group S40 can be electrically connected to the ground terminal of the backplane 100, so that the driving unit 202 corresponding to the driving pad group S40 can be connected to the ground terminal. Here, the driving unit 202 in each light-emitting unit 200 in the display panel 000 can be connected to the ground terminal of the backplane 100, so that the ground terminal of the backplane 100 can provide the same ground signal to the driving unit 202 in each light-emitting unit 200 in the display panel 000. It should be noted that the ground pad S46 and the ground terminal of the backplane 100 are arranged in different layers. Therefore, the backplane 100 can have a second via V2 for connecting the ground pad S46 and the ground terminal of the backplane 100. The ground pad S46 can be electrically connected to the ground terminal of the backplane 100 through the second via V2.

[0138] In one possible implementation, within the driving pad group S40, the first access pad S44, the first signal output pad S41, and the second signal output pad S42 can be arranged as a first column of driving pads along the first direction X, and the ground pad S46, the third signal output pad S43, and the second access pad S45 can be arranged as a second column of driving pads along the first direction X. In this case, the orthographic projection of the data signal line L3 in a group of first signal lines 101 on the plane where the backplane 100 is located can overlap with the orthographic projection of the first column of driving pads on the plane where the backplane 100 is located.

[0139] Optionally, within the light-emitting unit 200, the driving unit 202 can be located on a side of the plurality of light-emitting units 201 that is away from the first common electrode signal line L1. Since two columns of pads are distributed within the driving pad group S20, and in order to ensure that a group of first signal lines 101 are arranged relatively tightly, it is necessary to ensure that the first column of driving pads where the first access pad S45 within the driving pad group S20 is located is closer to the first common electrode signal line L1 than the second column of driving pads. That is, the first pad group S10, the second pad group S20, and the third pad group S30 corresponding to one light-emitting unit 100 can all be located on a side of the first column of driving pads away from the second column of driving pads, and in the first pad group S10, the second pad group S20, and the third pad group S30 corresponding to one light-emitting unit 100, the first column of electrode pads can be located on a side of the second column of electrode pads that is away from the first column of driving pads. Therefore, the first signal output pad S41 in the driving pad group S40 can be arranged adjacent to the second electrode pad S22 in the first pad group S10 in the second direction Y, so that the first signal output pad S41 and the second electrode pad S22 can be directly electrically connected through the sixth transfer signal line Z6; and the second signal output pad S42 in the driving pad group S40 can be arranged adjacent to the fourth electrode pad S24 in the second pad group S20 in the second direction Y, so that the second signal output pad S42 and the fourth electrode pad S24 can be directly electrically connected through the seventh transfer signal line Z7.

[0140] Furthermore, since the second column of driving pads where the third signal output pad S43 in the driving pad group S20 is located is located on the side of the first column of driving pads away from the multiple light-emitting portions 201, the distance between the third signal output pad S43 and the sixth electrode pad S32 in the third pad group S20 is relatively far. For this reason, in an embodiment of the present application, a bent trace Z8 can also be integrated in the backplane 000, and the two ends of the bent trace Z8 can be electrically connected to the third signal output pad S43 and the sixth electrode pad S32, respectively. In this way, the third signal output pad S43 can be electrically connected to the sixth electrode pad S32 through the bent trace Z8. Here, the bent trace Z8 can be arranged on the same layer as the various pads integrated in the backplane 100, so that the two ends of the bent trace Z8 can be directly electrically connected to the third signal output pad S43 and the sixth electrode pad S32. It should be noted that the bent trace Z8 only needs to connect the third signal output pad S43 and the sixth electrode pad S32. The bent trace Z8 occupies a relatively small space within the backplane 100 and does not affect the area of ​​the functional area P within the backplane 100. In this way, the area of ​​the functional area P within the backplane 100 can be further increased.

[0141] In an embodiment of the present application, the backplane 100 has a first via V1 for connecting the first access pad S44 for connection with the data signal line L3. The zigzag trace Z8 in the backplane 100 may include: a first portion Z81, a second portion Z82, and a third portion Z83. The first portion Z81 of the zigzag trace Z8 may be distributed on the side of the first via V1 away from the first access pad S44 in the first direction X, and the second portion Z82 and the third portion Z83 of the zigzag trace Z8 may be distributed on both sides of the first via V1 in the second direction Y. Here, the third signal output pad S43, the second portion Z82 of the zigzag trace Z8, the first portion Z81 of the zigzag trace Z8, the third portion Z83 of the zigzag trace Z8, and the sixth electrode pad S32 may be connected in series in sequence, so that the first via V1 can be distributed within the area enclosed by the zigzag trace Z8.

[0142] In the present application, the backplane 100 may also have a second via V2 for connecting the ground pad S46 and the ground end of the backplane 100. The zigzag trace Z8 in the backplane 100 may also include: a fourth portion Z84. The first portion Z81 and the fourth portion Z85 of the zigzag trace Z8 may be located on either side of the second via V2 in the first direction X, respectively, and the second portion Z82 of the zigzag trace Z8 may be located on the side of the second via V2 away from the ground pad Z46 in the second direction Y. Here, the third signal output pad S43, the fourth portion Z84 of the zigzag trace Z8, the second portion Z82 of the zigzag trace Z8, the first portion Z81 of the zigzag trace Z8, the third portion Z83 of the zigzag trace Z8, and the sixth electrode pad S32 may be connected in series in sequence, so that the first via V1 and the second via V2 may both be distributed within the area enclosed by the zigzag trace Z8. In this way, the conductive structures for connecting the driving unit 202 and the light-emitting unit 201 within the backplane 100 can be more compactly distributed, and the conductive structures for connecting the light-emitting units and the signal lines can be more compactly distributed. This can further increase the area of ​​the functional area P within the backplane 100, allowing the through holes K provided within the functional area P to be larger.

[0143] It should be noted that to ensure that the zigzag trace Z8 does not interfere with the distribution of the first via V1 and the second via V2, the zigzag trace Z8 may further include: a first avoidance portion Z85 and a second avoidance portion Z86. The first avoidance portion Z85 may be located between the third signal output pad S43 and the fourth portion Z84 of the zigzag trace Z8 and may extend in the second direction Y while extending away from the second via V2. The second avoidance portion Z86 may be located between the sixth electrode pad S32 and the second portion Z82 of the zigzag trace Z8 and may extend in the first direction X while extending away from the first via V1. In this way, by setting the first avoidance part Z85 and the second avoidance part Z86 in the bent trace Z8, it can be ensured that the bent trace Z8 can avoid the first via V1 and the second via V2, and thus the area of ​​the region used to set the first via V1 and the second via V2 (that is, the region surrounded by the bent trace Z8) can be effectively increased, so that the reliability of the display panel 000 is higher.

[0144] The two ends of the first avoidance portion Z85 can be connected to the third signal output pad S43 and the end of the fourth portion Z84, respectively. The first avoidance portion Z85 can extend in a zigzag line so that the first avoidance portion Z85 can avoid the second via V2. Similarly, the two ends of the second avoidance portion Z86 can be connected to the sixth electrode pad S32 and the end of the second portion Z82, respectively. The second avoidance portion Z86 can extend in a zigzag line so that the second avoidance portion Z86 can avoid the first via V1.

[0145] In the embodiment of the present application, regarding the ground pad S46, third signal output pad S43, and second access pad S45 arranged in a row within the driving pad group S40, since the second access pad S45 needs to be electrically connected to the second signal line 102 via the fifth transfer signal line Z5, to ensure a more compact distribution of the signal lines integrated within the backplane 000, the second access pad S45 can be positioned closest to the second signal line 102. That is, the second access pad S45 is closer to the second signal line 102 electrically connected to the second access pad S45 than the ground pad S46, and the second access pad S45 is closer to the second signal line 102 than the third signal output pad S43. Furthermore, since the ground pad S46 needs to be connected to the ground terminal of the backplane 100 via the second via V2, and the area of ​​the second via V2 is generally large, to ensure that the second via V2 does not affect the distribution of the second signal line 102, the distance between the second via V2 and the second signal line 102 needs to be relatively large. To this end, the ground pad S46 may be disposed at a position furthest away from the second signal line 102. Thus, within the driving pad group S40, the third signal output pad S43 needs to be distributed between the ground pad S46 and the second access pad S45.

[0146] Regarding the first access pad S44, first signal output pad S41, and second signal output pad S42 arranged in a row in the driving pad group S40, since the second electrode pad S12 is located between the fourth electrode pad S22 and the sixth electrode pad S32, to facilitate the connection between the driving pad group S40 and the pad group corresponding to the light-emitting portion, the first signal output pad S41 in the driving pad group S40 can be positioned between the first access pad S44 and the second signal output pad S42. Furthermore, since the first access pad S41 needs to access the data signal line L3 through the first via V1, and the area of ​​the first via V1 is generally large, to ensure that the first via V1 does not affect the distribution of the second signal line 102, the distance between the first via V1 and the second signal line 102 needs to be relatively large. To this end, the first access pad S44 can be positioned at the position farthest from the second signal line 102.

[0147] In this case, within the driving pad group S40, the first access pad S44 and the ground pad S46 can be arranged adjacent to each other in the second direction Y, the first signal output pad S41 and the third signal output pad S43 can be arranged adjacent to each other in the second direction Y, and the second signal output pad S42 and the second access pad S45 can be arranged adjacent to each other in the second direction Y.

[0148] For example, assume that the first common electrode signal line L1 and the second common electrode signal line L2 in a group of first signal lines 101 both provide anode signals. When the display panel 000 needs to control the light-emitting unit 200 to emit light, a power drive signal can be applied to the power signal line electrically connected to this light-emitting unit 400 in the display panel 000, and a data signal can be applied to the data signal line L3 electrically connected to this light-emitting unit 400. In this way, after the driver 202 in the light-emitting unit 200 receives the power drive signal through the second access pad S45, the driver 202 can be in an operating state. And after the driver 202 receives the data signal through the first access pad S43, the driver 202 can generate three cathode signals corresponding to the three light-emitting units 201 based on the data signal. The three cathode signals can be transmitted to the cathode solder pins of the three light-emitting units 201 respectively through the three signal output pads. Because the anode solder pins of the light-emitting units 201 always receive the anode signal. Therefore, after the light-emitting portion 201 receives the anode signal and the cathode signal respectively, the light-emitting portion 201 can emit light of corresponding intensity.

[0149] 4 , a group of second signal lines 102 in the backplane 100 may include at least one second signal line 102. For example, a group of second signal lines 102 may include only one second signal line 102, which may be a power signal line.

[0150] In order to more clearly see the structure of the second signal line 102 integrated in the backplane 100, please refer to Figure 9, which is a schematic diagram of the structure of a second signal line provided in an embodiment of the present application. The second signal line 102 can have: multiple third bending structures 1021 and multiple fourth bending structures 1022. Among them, in the second signal line 102, the multiple third bending structures 1021 and the multiple fourth bending structures 1022 can be arranged alternately one by one, and the opening direction of the third bending structure 1021 can be opposite to the opening direction of the fourth bending structure 1022. For example, the opening of the third bending structure 1021 can be toward the bottom side of the second signal line 102, and the opening of the fourth bending structure 1022 can be toward the top side of the second signal line 102.

[0151] For example, please refer to Figure 10, which is a schematic structural diagram of another second signal line provided in an embodiment of the present application. The second signal line 102 may include: a plurality of third extensions F1 and a plurality of fourth extensions F2, and a second connection portion F3 for connecting the third extensions F1 and the fourth extensions F2. Here, the plurality of third extensions F1 and the plurality of fourth extensions F2 in the second signal line 102 may be arranged alternately one by one, and the extension direction of the plurality of third extensions F1 may be parallel to the extension direction of the fourth extension F2. For example, the extension direction of the third extension F1 and the extension direction of the fourth extension F2 are both parallel to the second direction Y. The second connection portion F3 in the second signal line 102 may be located between the third extension F1 and the fourth extension F2, and the third extension F1 may be connected to one end of the second connection portion F3, and the fourth extension F2 may be connected to the other end of the second connection portion E3.

[0152] The extension direction of the second connecting portion F3 may intersect with the extension direction of the third extending portion F1 and may intersect with the extension direction of the fourth extending portion F2. In this case, the third extending portion F1 and the two second connecting portions F3 connected to the ends of the third extending portion F1 can form a third folded structure 1021; the fourth extending portion F2 and the two second connecting portions F3 connected to the ends of the fourth extending portion F2 can form a fourth folded structure 1022.

[0153] In the present application, the opening of the third bending structure 1021 in the second signal line 102 can be oriented toward the functional portion. In one possible implementation, when the functional portion is a through-hole K, a portion of the through-hole K provided in the functional area P can extend into the area enclosed by the third bending structure 1021. Here, the area enclosed by the third bending structure 1021 refers to the area enclosed by the extension lines of the third bending structure 1021 and the fourth extension F2 at the location of the third bending structure 1021. In this way, by providing the third bending structure 1021 in the second signal line 102 and allowing a portion of the through-hole K to extend into the area enclosed by the third bending structure 1021, the opening area of ​​the through-hole K provided in the functional area P can be further increased.

[0154] In addition, the opening of the fourth bending structure 1022 in the second signal line 102 may face the light emitting unit 200. In this way, the light emitting unit 200 in the display panel 000 does not occupy too much functional area P, thereby ensuring that a larger through hole K can be set in the functional area P.

[0155] Alternatively, please refer to Figure 11, which is a top view of another display panel provided in an embodiment of the present application. The backplane 100 may have a device fixing area 100a and a sound-transmitting area 100b located outside the device fixing area 100a. In the sound-transmitting area 100b, through holes K are provided within the area enclosed by adjacent first signal lines 101 and adjacent second signal lines 102; in the device fixing area 100a, no through holes K are provided within the area enclosed by adjacent first signal lines 101 and adjacent second signal lines 102. That is, the multiple through holes K in the backplane 100 are all distributed within the sound-transmitting area 100b and outside the device fixing area 100a.

[0156] In an embodiment of the present application, the display panel 000 may further include a drive control module fixed to the back of the display panel. The drive control module may be located within the device fixing area 100a of the display panel 000, and the drive control module may be used to send drive signals to the first signal line 101 and the second signal line 102. The drive control module in the display panel 000 typically includes multiple components. For example, the drive control module in the display panel 000 may include a connector, so that the signal access circuit board can be plugged into the connector via a line to achieve an electrical connection between the signal access circuit board and the display panel. In the present application, since these components in the drive control module can be fixed to the side of the back plate 100 of the display panel 000 away from the multiple light-emitting units 200 by welding, when the drive control module is located within the device fixing area 100a, since no through hole K is provided in the device fixing area 100a, it can be ensured that these components can be stably fixed within the device fixing area 100a. In this case, the display panel 000 can not only transmit the sound emitted by the speaker through the multiple through holes K provided in the sound-transmitting area 100 b , but also stably fix the driving control module through the device fixing area 100 a .

[0157] Optionally, the backplane 100 in the display panel 000 may be a printed circuit board. This ensures that the overall strength of the backplane 100 is high even if a large number of through holes K are provided in the backplane 100. Of course, in other possible implementations, the backplane 000 includes a substrate, and the first signal line 101 and the second signal line 102 may both be located on one side of the substrate, which may be a glass substrate.

[0158] In summary, the display panel provided by the embodiment of the present application includes: a backplane and a plurality of light-emitting units. In the backplane of the display panel, a through hole penetrating the backplane is provided in the area surrounded by at least part of the adjacent first signal lines and the adjacent second signal lines. In this way, through holes can be distributed in the backplane of the display panel, and these through holes can be used as sound-permeable holes. Even if a speaker is set on the back of the display panel, the sound emitted by the speaker can be transmitted from the sound-permeable holes in the display panel to ensure that the display panel does not block the sound emitted by the speaker. For this reason, this display panel can be used as a sound-permeable display panel, and the sound emitted by the speaker set on the back of the display panel can be directly transmitted from the display surface of the display panel. In this way, this display panel can have both a display function and a sound-permeable function, which effectively enriches the function of the display panel and makes the use effect of the display panel better.

[0159] The embodiment of the present application further provides a display module, as shown in Figures 12 and 13. Figure 12 is a top view of a display module provided in the embodiment of the present application, and Figure 13 is an exploded view of the display module shown in Figure 12. The display module 010 may include: a housing 001, a display panel 000 located on one side of the housing 001, and a speaker 002 located between the housing 001 and the display panel 000, wherein the sound emitting surface of the speaker 002 may face the display panel 000. Here, the display panels in the display module 010 may all be the display panels shown in the above embodiments, and the speaker 002 is located on the side of the back plate 100 in the display panel 000 that is away from the multiple light-emitting units 200.

[0160] In the present application, since the back panel 100 in the display panel 000 in the above embodiment is provided with a through hole K that runs through the entire back panel 100, the speaker 002 is arranged on the side of the back panel 100 away from the multiple light-emitting units 200, and the sound-emitting surface of the speaker 002 is facing the display panel 000. The sound emitted by the speaker 002 can be transmitted through the through hole K, so that the sound emitted by the speaker 002 in the display module 010 can be transmitted from the display side of the display module 010.

[0161] Optionally, the display module 010 may further include a signal access circuit board 003 located between the housing 001 and the multiple display panels 000. The signal access circuit board 003 is configured to electrically connect to the drive control module in the display panels 000. The signal access circuit board may also be electrically connected to a control device, allowing the control device to transmit signals to be displayed to the display panels via the signal access circuit board.

[0162] In the present application, the surface on which the signal access circuit board 003 is located can intersect with the surface on which the display panel 000 is located. For example, the surface on which the signal access circuit board 003 is located can be perpendicular to the surface on which the display panel 000 is located. This ensures that the signal access circuit board 003 can be properly connected to the display panel 000 while also ensuring that the signal access circuit board 003 does not block the sound emitted by the speaker 002.

[0163] For example, the number of display panels 000 in the display module 010 is multiple, and the multiple display panels 000 can be arranged in an array by splicing. The number of signal access circuit boards 003 in the display module 010 is at least one. Here, the box 001 in the display module 010 can have a storage cavity O, and the multiple spliced ​​display panels 000 in the display module 010 can be connected to the box 001 at the opening of the storage cavity O. The speaker 002 and at least one signal access circuit board 003 in the display module 010 can both be located in the storage cavity O. In particular, on the sound output surface parallel to the speaker 002, the signal access circuit boards 003 can be distributed on at least one side of the speaker 002 in the storage cavity O. For example, when there are multiple signal access circuit boards 003, the multiple signal access circuit boards 003 can be divided into two groups, each group of signal access circuit boards 003 can include at least one access circuit board 003. Here, when a group of signal access circuit boards 003 includes multiple signal access circuit boards 003, these signal access circuit boards 003 can be stacked. Furthermore, within the accommodating cavity O, two sets of signal access circuit boards 003 can be located on two opposing inner side surfaces of the accommodating cavity O, and the speakers 002 can be distributed between the two sets of signal access circuit boards 003. In this way, the sound emitted by the speakers 002 will not be transmitted by the signal access circuit boards 003, and the speakers 002 can directly emit sound toward the multiple display panels 000, allowing the sound to be transmitted through the through holes provided in each display panel 000.

[0164] The present application also provides a display system. As shown in FIG14 , FIG14 is a schematic diagram of the structure of a display system provided by the present application. The display system may include: a plurality of spliced ​​first display modules 010 . The first display modules 010 may be the display modules 010 shown in the above embodiment, for example, the display module shown in FIG14 .

[0165] Optionally, the display system may further include: a plurality of spliced ​​second display modules 020. Here, in the display system, the second display module 020 may also be spliced ​​with the first display module 010. To this end, the display system can be spliced ​​together to form a large display screen, such as a cinema screen or an advertising screen, by combining multiple first display modules 010 and multiple second display modules 020.

[0166] In the embodiment of the present application, the second display module 020 may include: a plurality of spliced ​​passive display panels.

[0167] It should be noted that each light-emitting unit in the multiple display panels within the first display module 010 includes a driver and multiple light-emitting units electrically connected to the driver. Therefore, each display panel within the first display module 010 is an active display panel. In contrast, each light-emitting unit within a passive display panel includes multiple light-emitting units but does not include a driver. To this end, a large number of components need to be integrated on the back of the passive display panel. These components can control the light-emitting state of the light-emitting units of the passive display panel. For example, the components integrated on the back of the passive display panel may include: multiple row driver elements and multiple column driver elements. Each driver element can be connected to at least one row of light-emitting units, and each column driver element can be connected to at least one column of light-emitting units. In this way, when a light-emitting unit is required to emit light, the row driver element connected to the row where the light-emitting unit is located and the column driver element connected to the column where the light-emitting unit is located need to be called to work simultaneously. With the cooperation of the row driver element and the column driver element, the corresponding light-emitting unit can be controlled to emit light. It should be noted that in other possible implementations, a row driver element may be integrated with a column driver element, so that this element can be electrically connected to at least one corresponding row of light-emitting units and at least one corresponding column of light-emitting units at the same time.

[0168] In addition, a large number of components need to be evenly arranged on the back of the passive display panel. Therefore, through holes for sound transmission cannot be set in the passive display panel, and speakers may not be set in the second display module 020.

[0169] It should also be noted that the manufacturing cost of a passive display panel is much lower than that of an active display panel, and the display system can produce sound through the speakers installed in the first display module 010. Therefore, when the display system includes multiple first display modules 010 and multiple second display modules 020, not only can the sound be transmitted from the display side of the display system, but the overall manufacturing cost of the display system can also be kept low.

[0170] In an embodiment of the present application, the display system further includes a control device electrically connected to the plurality of first display modules and the plurality of second display modules. The control device is configured to, based on position information of each first display module and position information of each second display module, split an original video source to be displayed into a first video source corresponding to the first display module and a second video source corresponding to the second display module, and send the corresponding first video source to each first display module and the corresponding second video source to each second display module.

[0171] In this case, since the display principle of the first display module is different from that of the second display module, it is necessary to divide the original film source to be displayed into multiple first video sources and second video sources through a control device, so that the first display module can display the picture according to the first video source, and the second display module can display the picture according to the second video source, thereby ensuring that the entire display system can display the picture.

[0172] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It will also be understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it may be the only layer between the two layers or elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0173] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless expressly limited otherwise.

[0174] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A display panel, characterized in that, Comprising: Backplane; A plurality of light-emitting units arranged in an array on one side of the backplane, the light-emitting units comprising: a driving part fixed on the backplane and a plurality of light-emitting parts; Wherein, the backplane is integrated with multiple groups of first signal lines and multiple groups of second signal lines, one group of the first signal lines is electrically connected to each of the light-emitting units in the light-emitting units arranged in the first direction, and one group of the second signal lines is electrically connected to each of the light-emitting units in the light-emitting units arranged in the second direction, and the first direction and the second direction are different; A functional part is arranged in the area surrounded by at least some adjacent first signal lines and adjacent second signal lines, and the functional part is a through hole penetrating the backplane.

2. The display panel according to claim 1, wherein One group of the first signal lines includes multiple first signal lines, and at least one first signal line in one group of the first signal lines has: multiple first bending structures and multiple second bending structures, the multiple first bending structures and the multiple second bending structures are arranged alternately one by one, and the opening direction of the first bending structure is opposite to the opening direction of the second bending structure; Wherein, the opening of the first bending structure faces the functional part.

3. The display panel according to claim 2, wherein At least one of the light-emitting parts in the light-emitting unit is electrically connected to the first signal line; The opening of the second bending structure faces the light-emitting unit.

4. The display panel according to claim 3, wherein, The multiple light-emitting parts include a first light-emitting part, and the backplane is also integrated with a first pad group corresponding to and electrically connected to the first light-emitting part, and a driving pad group electrically connected to the driving part; Wherein, the first pad group includes: a first electrode pad and a second electrode pad, and the first electrode pad is electrically connected to the second bending structure; the driving pad group includes: a first signal output pad corresponding to the first pad group, and the first signal output pad is electrically connected to the second electrode pad in the first pad group.

5. The display panel according to claim 4, wherein The multiple light-emitting parts further include a second light-emitting part and a third light-emitting part, and the backplane is also integrated with a second pad group corresponding to and electrically connected to the second light-emitting part, and a third pad group corresponding to and electrically connected to the third light-emitting part; The second pad group includes a third electrode pad and a fourth electrode pad, and the driving pad group further includes a second signal output pad corresponding to the second pad group, and the second signal output pad is electrically connected to the fourth electrode pad in the second pad group; The third pad group includes a fifth electrode pad and a sixth electrode pad, and the driving pad group further includes a third signal output pad corresponding to the third pad group, and the third signal output pad is electrically connected to the sixth electrode pad in the third pad group.

6. The display panel according to claim 5, wherein The first electrode pad and the third electrode pad are the same pad; Or, the first electrode pad and the fifth electrode pad are the same pad; Or, the third electrode pad and the fifth electrode pad are the same pad; Or, the first electrode pad, the third electrode pad, and the fifth electrode pad are the same pad.

7. The display panel according to claim 5, wherein, A group of the first signal lines includes: data signal lines and a first common electrode signal line; the first common electrode signal line has the first bending structure and the second bending structure; the driving pad group further includes a first access pad, and the first access pad is electrically connected to the data signal lines; Wherein, the first access pad and at least two signal output pads are arranged in a column, and the at least two signal output pads are at least two of: the first signal output pad, the second signal output pad, and the third signal output pad.

8. The display panel according to claim 7, wherein The first access pad and the at least two signal output pads are arranged along the first direction; The second electrode pad, the fourth electrode pad, and the sixth electrode pad are arranged along the first direction.

9. The display panel according to claim 7, characterized in that, The positive projection of the data signal on the plane where the backplane is located overlaps with the positive projection of the first access pad and the signal output pads arranged in a column along the first direction on the plane where the backplane is located.

10. The display panel according to claim 7, wherein The backplane also integrally includes a bent trace, and two ends of the bent trace are respectively electrically connected to the third signal output pad and the sixth electrode pad; The backplane has a first via for connecting the first access pad and the data signal lines. In the first direction, a first part of the bent trace is distributed on a side of the first via away from the first access pad. In the second direction, a second part and a third part of the bent trace are respectively located on two sides of the first via; wherein, the third signal output pad, the second part of the bent trace, the first part of the bent trace, the third part of the bent trace, and the sixth electrode pad are connected in series in sequence.

11. The display panel according to claim 10, wherein The first access pad, the first signal output pad, and the second signal output pad are arranged in a column along the first direction as a first column of driving pads; The third signal output pad is located on a side of the first column of driving pads away from the plurality of light-emitting parts; The driving pad group further includes a ground pad, and the backplane also has a second via for connecting the ground pad and the ground terminal of the backplane. In the first direction, the first part of the bent trace and a fourth part of the bent trace are respectively located on two sides of the second via; in the second direction, the second part of the bent trace is located on a side of the second via away from the ground pad, wherein, the third signal output pad, the fourth part of the bent trace, the second part of the bent trace, the first part of the bent trace, the third part of the bent trace, and the sixth electrode pad are connected in series in sequence.

12. The display panel according to any one of claims 7 to 11, characterized in that, The driving pad group further includes: a second access pad and a ground pad, the second access pad is electrically connected to the second signal lines, and the ground pad is electrically connected to the ground terminal of the backplane; In one driving pad group, the first access pad, the first signal output pad, and the second signal output pad are arranged in a column along the first direction as a first column of driving pads, and the ground pad, the third signal output pad, and the second access pad are arranged in a column along the first direction as a second column of driving pads; The first pad group, the second pad group, and the third pad group corresponding to one of the light-emitting units are all located on a side of the first column driving pads away from the second column driving pads.

13. The display panel according to claim 12, wherein In the first pad group, the second pad group, and the third pad group corresponding to one of the light-emitting units, the first electrode pad, the third electrode pad, and the fifth electrode pad are arranged in a first column of electrode pads along the first direction, the second electrode pad, the fourth electrode pad, and the sixth electrode pad are arranged in a second column of electrode pads along the first direction, and the first column of electrode pads is located on a side of the second column of electrode pads away from the first column driving pads.

14. The display panel according to claim 12, wherein The first access pad and the ground pad are arranged adjacent to each other in the second direction, the third signal output pad is located between the ground pad and the second access pad, and the second access pad is closer to the second signal line electrically connected to the second access pad than the ground pad.

15. The display panel according to claim 12, wherein The first electrode pad, the third electrode pad, and the fifth electrode pad are arranged in a column along the first direction, and the first electrode pad is located between the third electrode pad and the fifth electrode pad; One group of the first signal lines further includes: a second common electrode signal line having the first bending structure and the second bending structure; Wherein, the first electrode pad is electrically connected to the second bending structure in the first common electrode signal line, and the third electrode pad and the fifth electrode pad are simultaneously electrically connected to the second common electrode signal line.

16. The display panel according to claim 15, characterized in that, The second common electrode signal line is closer to the plurality of light-emitting parts in the light-emitting unit than the first common electrode signal line; The bending degree of the first bending structure in the second common electrode signal line is less than the bending degree of the first bending structure in the first common electrode signal line; The bending degree of the second bending structure in the second common electrode signal line is less than the bending degree of the second bending structure in the first common electrode signal line.

17. The display panel according to any one of claims 5-11, 13-16, characterized in that, The first light-emitting part is a red light-emitting part for emitting red light, the second light-emitting part is one of a green light-emitting part for emitting green light and a blue light-emitting part for emitting blue light, and the third light-emitting part is the other of the green light-emitting part and the blue light-emitting part.

18. The display panel according to any one of claims 2-11, 13-16, characterized in that, The at least one first signal line includes: a plurality of first extension parts, a plurality of second extension parts, and a first connection part for connecting the first extension parts and the second extension parts, the plurality of first extension parts and the plurality of second extension parts are arranged alternately one by one, and the extending directions of the first extension parts and the second extension parts are parallel, the first connection part is located between the adjacent first extension part and the second extension part, and one end of the first extension part is connected to the first connection part, and the other end of the second extension part is connected to the first connection part; Wherein, the first extension portion and two first connection portions connected to both ends of the first extension portion form one of the first bending structures, and the second extension portion and two first connection portions connected to both ends of the second extension portion form one of the second bending structures.

19. The display panel according to claim 18, wherein A part of the functional portion extends into an area enclosed by the first bending structure and an extension line of the second extension portion at the position where the first bending structure is located.

20. The display panel according to any one of claims 2-11, 13-16, characterized in that, A set of the second signal lines includes at least one second signal line, and the at least one second signal line has: a plurality of third bending structures and a plurality of fourth bending structures, the plurality of third bending structures and the plurality of fourth bending structures are arranged alternately one by one, and an opening direction of the third bending structure is opposite to an opening direction of the fourth bending structure; Wherein, the opening of the third bending structure faces the functional portion, and the opening of the fourth bending structure faces the light-emitting unit.

21. The display panel according to any one of claims 1-11, 13-16, characterized in that, The backplane has a device fixing area and a sound transmission area distributed around the device fixing area; Wherein, in the sound transmission area, the through holes are arranged in an area enclosed by adjacent first signal lines and adjacent second signal lines; in the device fixing area, the through holes are not arranged in an area enclosed by adjacent first signal lines and adjacent second signal lines.

22. The display panel according to claim 21, wherein The display panel further includes: a driving control module fixed on the back surface of the display panel, the driving control module is distributed in the device fixing area, and the driving control module is configured to send driving signals to the first signal lines and the second signal lines.

23. The display panel according to any one of claims 1-11, 13-16, characterized in that The backplane is a printed circuit board, or The backplane includes a substrate, the first signal lines and the second signal lines are located on one side of the substrate, and the material of the substrate is glass.

24. A display module, characterized in that, Including: A box body, a display panel located on one side of the box body, and a speaker located between the box body and the display panel, and a sound output surface of the speaker faces the display panel; the display panel is the display panel according to any one of claims 1 to 23.

25. The display module according to claim 24, wherein The display module further includes: a signal access circuit board located between the box body and the display panel, and the signal access circuit board is used for electrically connecting with a driving control module in the display panel; Wherein, a plane where the signal access circuit board is located intersects with a plane where the display panel is located.

26. The display module according to claim 25, wherein The number of the display panels is multiple, and the multiple display panels are arranged in an array; The box body has an accommodation cavity, the number of the signal access circuit boards is at least one, and at least one of the signal access circuit boards and the speaker are both located in the accommodation cavity; Wherein, in a direction parallel to the sound output surface of the speaker, the signal access circuit board is distributed on at least one side of the speaker in the accommodation cavity.

27. A display system, characterized in that, Including: A plurality of spliced first display modules, and the first display module is the display module according to any one of claims 24 to 26; The display system further includes: a plurality of spliced second display modules, and the second display modules are spliced with the first display modules; wherein, the second display module includes: a plurality of spliced passive display panels.

28. The display system according to claim 27, wherein The display system further includes: a control device electrically connected to the first display module and the second display module; Wherein, the control device is configured to: divide an original video source to be displayed into a first video source corresponding to the first display module and a second video source corresponding to the second display module according to the position information of each of the first display modules and the position information of each of the second display modules, and send the corresponding first video source to each of the first display modules and send the corresponding second video source to each of the second display modules.

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