Display module and LED display system

Abstract

The present application relates to a display module and an LED display system, wherein the display module comprises: a substrate, a plurality of display units, an intermediate connecting medium, and one or more spare connecting components; wherein the display units are all arranged on the front side of the substrate; the spare connecting components are all arranged on the back side of the substrate; each spare connecting component is connected to a preset number of display units via the intermediate connecting medium to form a preset number of gating channels; when there is a faulty display unit among the preset number of display units, the spare connecting component is in a standby state, the target gating channel corresponding to the faulty display unit is in a conducting state, and the remaining gating channels except the target gating channel among the preset number of gating channels are in a shut-off state, so that the spare connecting component is connected to the faulty display unit via the target gating channel. Based on this, the repair of the faulty display unit can be completed without disassembling the entire coplanar packaging structure, thereby improving the maintainability of the display module.

Description

Technical Field

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

[0002] In traditional LED display modules, LED light-emitting chips are usually mounted on one side of the PCB, and the driving circuit is mounted on the other side of the PCB, and then multiple LED light-emitting chips are controlled by the driving circuit. In this structure, there are many LED light-emitting chips, especially in small-pitch LED display modules, the LED light-emitting chip layout is more compact; however, due to the large size of the encapsulated driving circuit itself, it is difficult to achieve good heat dissipation performance with a small pitch layout. Based on this, the coplanar packaging solution of the driver chip and the LED came into being. However, since the driver module and the LED are packaged together, once a driver chip in the packaging structure fails, it is difficult to disassemble and repair the single driver chip.

[0003] There is no effective solution to the problem of inconvenient maintenance of the coplanar packaging structure of the current display module. Summary of the invention

[0004] Based on this, it is necessary to provide a display module and an LED display system to address the above technical issues.

[0005] In a first aspect, the present application provides a display module, the display module comprising: a substrate, a plurality of display units, an intermediate connecting medium, and one or more spare connection components; wherein the display units are all arranged on the front side of the substrate; the spare connection components are all arranged on the back side of the substrate;

[0006] Each of the standby connection components is connected to a preset number of the display units via the intermediate connecting medium to form a preset number of gating channels;

[0007] In the case that there is no faulty display unit among the preset number of display units, the standby connection component is in an idle state, and the preset number of strobe channels are all in a closed state, so that the standby connection component and the preset number of display units are in an open circuit state;

[0008] In the event that there is a faulty display unit among the preset number of display units, the standby connection component is in a standby state, the target gating channel corresponding to the faulty display unit is in an on state, and the remaining gating channels among the preset number of gating channels except the target gating channel are in an off state, so that the standby connection component is connected to the faulty display unit via the target gating channel.

[0009] In one of the embodiments, the display module further includes a backup driving circuit;

[0010] When the standby connection component is in a standby state, the standby driving circuit is connected to the fault display unit via the standby connection component and the target selection channel.

[0011] In one embodiment, the intermediate connecting medium includes a plurality of pad groups corresponding to the plurality of display units one by one; the plurality of pad groups are arranged on the front side of the substrate; the display unit includes a driving module and a plurality of LEDs;

[0012] When the standby connection component is in a standby state, multiple standby drive control terminals of the standby drive circuit are connected to multiple LEDs corresponding to the fault display unit via the standby connection component, the target selection channel and the pad group corresponding to the fault display unit.

[0013] In one embodiment, the gating channel includes a first channel and a second channel; the intermediate connecting medium includes a plurality of pad groups corresponding to the plurality of display units, a plurality of gating units corresponding to the plurality of display units, and internal circuits of the substrate; the plurality of gating units are arranged on the back side of the substrate; the gating units are provided with a plurality of input terminals and a plurality of output terminals; the standby connection assembly includes a plurality of standby driving connection components;

[0014] The plurality of input terminals corresponding to the gating unit are connected to the plurality of spare driving connection components of the spare connection assembly corresponding to the corresponding display unit to form a first channel;

[0015] The multiple output terminals corresponding to the selection unit are connected to the multiple LEDs in the corresponding display unit through the internal circuits of the substrate and the pad groups corresponding to the corresponding display units to form a second channel.

[0016] In one of the embodiments, the gating unit is further provided with a gating switch;

[0017] The gating switch is used to turn on or off the corresponding gating channel.

[0018] In one embodiment, the display module further includes a regular functional circuit and a standby functional circuit;

[0019] The conventional functional circuit is arranged on the front side of the substrate;

[0020] The backup functional circuit is arranged on the back side of the substrate.

[0021] In one embodiment, the intermediate connecting medium includes a plurality of pad groups corresponding to the plurality of display units, a plurality of gating units corresponding to the plurality of display units, and internal circuits of the substrate; the display module also includes a backup driving circuit;

[0022] When the standby connection component is in a standby state, the standby driving circuit is connected to a standby functional circuit corresponding to the standby connection component via the standby connection component;

[0023] or,

[0024] When the backup connection component is in a standby state, the backup driving circuit is connected to the backup functional circuit corresponding to the backup connection component via the backup connection component, and the backup driving circuit is connected to the normal functional circuit corresponding to the fault display unit via the backup connection component, the internal circuit of the substrate and the pad group corresponding to the fault display unit.

[0025] In one embodiment, the plurality of display units are arranged in an array; the backup connection components are arranged in an array; and the number of the backup connection components is less than or equal to the number of the display units.

[0026] In one embodiment, the conventional functional circuit includes a data signal line and a parallel clock signal line;

[0027] Each row of the plurality of display units corresponds to one data signal line;

[0028] Each column of the plurality of display units corresponds to one parallel clock signal line.

[0029] In one embodiment, the display unit includes a driving module; the driving module is provided with a data receiving end and a clock receiving end;

[0030] The data signal line is connected to the data receiving end of the driving module corresponding to the plurality of display units in the corresponding row;

[0031] The parallel clock signal lines are connected to the clock receiving ends of the corresponding driving modules of the corresponding columns of the plurality of display units.

[0032] In one embodiment, the conventional functional circuit includes a data signal line and a parallel clock signal line;

[0033] Each row of the plurality of display units corresponds to one data signal line;

[0034] Every two columns of the display units correspond to one parallel clock signal line.

[0035] In one embodiment, the display unit includes a driving module; the driving module is provided with a first communication terminal and a second communication terminal;

[0036] The data signal lines are respectively connected to the first communication terminals of the driving modules corresponding to the plurality of display units located in the odd columns and the second communication terminals of the driving modules corresponding to the plurality of display units located in the even columns;

[0037] The parallel clock signal lines are respectively connected to the second communication ends of the driving modules corresponding to the display units on the odd columns in the corresponding two columns, and the first communication ends of the driving modules corresponding to the display units on the even columns in the corresponding two columns.

[0038] In one embodiment, the backup functional circuit includes a backup data signal line; the backup connection component includes a backup data communication connection component;

[0039] Each row of one or more of the spare connection components corresponds to one of the spare data signal lines;

[0040] The standby data signal line is connected to a standby data communication connection component corresponding to one or more standby connection components in a corresponding row.

[0041] In one of the embodiments, the backup functional circuit includes a backup clock signal line; the backup connection component includes a backup clock communication connection component;

[0042] Each column of one or more of the standby connection components corresponds to one of the standby clock signal lines;

[0043] The backup clock signal line communicates with a backup clock connection component corresponding to one or more of the backup connection components in a corresponding column.

[0044] In a second aspect, the present application further provides an LED display system, the LED display system comprising a main control terminal and one or more display modules described in any one of the embodiments of the first aspect above; wherein the main control terminal is provided with a regular communication port group and a standby communication port group;

[0045] The conventional communication port group of the main control terminal is connected to the conventional functional lines corresponding to one or more display modules;

[0046] The backup communication port group of the main control terminal is connected to the backup function lines corresponding to one or more display modules.

[0047] The above-mentioned display module and LED display system, the display module includes a substrate, multiple display units, an intermediate connecting medium, and one or more spare connection components; wherein the display units are all arranged on the front side of the substrate; the spare connection components are all arranged on the back side of the substrate; each spare connection component is connected to a preset number of display units via the intermediate connecting medium to form a preset number of gating channels, which lays a foundation for realizing the repair of a single faulty display unit; when there is a faulty display unit, the spare connection component can switch from an idle state to a standby state, and electrically connect with the faulty display unit by turning on the corresponding target gating channel, so as to allow access to the spare driving circuit to take over the corresponding related work of the faulty display unit, based on this, the repair of the faulty display unit can be completed without disassembling the entire coplanar packaging structure, which simplifies the display module maintenance process and reduces related costs, effectively avoids the problem that a single driver chip cannot be repaired separately after being damaged in the coplanar packaging structure of the driver chip and the LED, and improves the maintainability of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0049] Figure 1 It is a structural schematic diagram of a display module in one embodiment;

[0050] Figure 2 is a schematic structural diagram of a display unit in one embodiment;

[0051] Figure 3 This is a schematic diagram of the arrangement of the driver chips in the first specific embodiment;

[0052] Figure 4 A schematic diagram showing module wiring in the first specific embodiment;

[0053] Figure 5 It is a schematic diagram of the arrangement of the driver chips in the second specific embodiment;

[0054] Figure 6 It is a schematic diagram showing module wiring in the second specific embodiment.

[0055] Description of reference numerals:

[0056] 100, substrate; 200, display unit; 300, spare connection component; 400, intermediate connecting medium; 210, driving module; 220, LED. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0059] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0060] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0061] It can be understood that “at least one” means one or more, “plurality” means two or more, and “at least a portion of an element” means a part or all of an element.

[0062] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0063] In one embodiment, Figure 1 As shown, Figure 1 Schematic diagram of the structure of a display module in an embodiment; the display module includes: a substrate 100, a plurality of display units 200, an intermediate connecting medium 400, and one or more spare connection components 300; wherein the display units 200 are all arranged on the front side of the substrate 100; and the spare connection components 300 are all arranged on the back side of the substrate 100;

[0064] Each standby connection assembly 300 is connected to a preset number of display units 200 via an intermediate connecting medium 400 to form a preset number of gating channels;

[0065] In the case that there is no faulty display unit among the preset number of display units 200, the standby connection component 300 is in an idle state, and the preset number of strobe channels are all in an off state, so that the standby connection component 300 and the preset number of display units 200 are in an open circuit state;

[0066] When there is a faulty display unit among the preset number of display units 200, the standby connection component 300 is in a standby state, the target gating channel corresponding to the faulty display unit is in an on state, and the remaining gating channels among the preset number of gating channels except the target gating channel are in an off state, so that the standby connection component 300 is connected to the faulty display unit via the target gating channel.

[0067] The display unit 200 includes a driving module and a plurality of LEDs; the driving module includes a driving chip; the driving module may be, but is not limited to, provided with a plurality of driving control terminals; the driving control terminal of the driving module is used to connect with a plurality of LEDs and provide corresponding driving control signals for the plurality of LEDs; the LED is a light-emitting element used to realize corresponding display according to the driving control signal; it should be noted that the connection method between the driving control terminal of the driving module and the plurality of LEDs may be, but is not limited to, a wire bonding method or a flip-chip welding method, which is not specifically limited here. Optionally, in an exemplary embodiment, see Figure 2 , Figure 2 The driving module 210 is connected to the substrate 100 by flip-chip bonding, and the plurality of LEDs 220 are connected to the driving control end of the driving module 210 and the substrate 100 by wire bonding.

[0068] The intermediate connecting medium 400 has a conductive property and is used to realize the electrical connection between the display unit 200 and the backup connecting component 300. The intermediate connecting medium 400 may include, but is not limited to, internal circuits and pads of the substrate, which are not specifically limited here.

[0069] Among them, the backup connection component 300 has a conductive property; the state of the backup connection component 300 includes an idle state and a standby state; wherein, when the backup connection component 300 is in the idle state, the backup connection component 300 and a preset number of display units 200 are in an open circuit state; when the backup connection component 300 is in the standby state, the backup connection component 300 is only in a conductive state with the faulty display units among the preset number of display units 200 connected to it, and is in an open circuit state with the remaining display units 200 among the preset number of display units 200.

[0070] It is understandable that when the standby connection component 300 is in an idle state, no additional power is consumed or unnecessary signal interference is generated, thereby ensuring the reliability of the display module.

[0071] It should be noted that, usually, only a few of the multiple display units 200 in the display module will fail. Therefore, the preset number needs to be set according to the performance of the display module in actual applications and is not specifically limited here.

[0072] It should be noted that, in the case of a faulty display unit, the backup connection component 300 is used to connect the backup drive circuit to the display module to take over the work of the original drive module 210 in the corresponding faulty display unit; wherein the backup drive circuit has the same specifications as the drive module 210 in the display unit 200, such as the number of pins, the function of each pin, etc., to achieve reliable driving of the multiple LEDs 220 in the corresponding faulty display unit. The faulty display unit refers to the display unit 200 corresponding to the faulty or ineffective drive module 210.

[0073] The state of the strobe channel includes an on state and an off state; according to the state of the strobe channel, it is possible to ensure that a unique connection path is established between the backup connection component 300 and the fault display unit in the presence of a fault display unit.

[0074] Exemplarily, n display units 200 are provided on the front side of the substrate 100 of the display module; wherein n>1, and n is an integer; n / a spare connection components 300 are provided on the back side of the substrate 100; wherein a≥1, and a is an integer; when a=1, n spare connection components 300 are provided on the back side of the substrate 100, and at this time, each spare connection component 300 is connected to a corresponding display unit 200 via an intermediate connecting medium 400 to form a selection channel; when a>1, n / a spare connection components 300 are provided on the back side of the substrate 100, and at this time, each spare connection component 300 is connected to a corresponding display unit 200 via an intermediate connecting medium 400 to form a selection channel.

[0075] Further, taking one of the backup connection components 300 as an example, when a>1, if there is no faulty display unit among the a display units 200 corresponding to the backup connection component 300, the backup connection component 300 is in an idle state, and the a selection channels are all in an off state, so that the backup connection component 300 and the a display units 200 are in an open circuit state; if there is a faulty display unit among the a display units 200 corresponding to the backup connection component 300, the backup connection component 300 is in a standby state, the target selection channel corresponding to the faulty display unit is in an on state, and a-1 selection channels among the a selection channels except the target selection channel are all in an off state, so that the backup connection component 300 is connected to the faulty display unit through the target selection channel.

[0076] When a=1, each standby connection component 300 corresponds to one display unit 200. If the display unit 200 does not have a fault, the standby connection component 300 is in an idle state. At this time, the selection channel corresponding to the standby connection component 300 and the display unit 200 is in an off state, and the two are in an open state; if the display unit 200 has a fault, the standby connection component 300 is in a standby state, the selection channel corresponding to the standby connection component 300 and the display unit 200 is in an on state, and the standby connection component 300 is connected to the display unit 200.

[0077] In the present embodiment, a plurality of display units 200 are arranged on the front side of the substrate 100; a spare connection component 300 is arranged on the back side of the substrate 100, and each spare connection component 300 is connected to a preset number of display units 200 via an intermediate connecting medium 400 to form a preset number of gating channels, thereby laying a foundation for realizing the repair of a single faulty display unit; when there is a faulty display unit, the spare connection component 300 can be switched from an idle state to a standby state, and electrically connected to the faulty display unit by turning on the corresponding target gating channel, so as to allow access to the spare driving circuit to take over the work of the driving module 210 corresponding to the faulty display unit. Based on this, the repair of the faulty display unit can be completed without disassembling the entire coplanar packaging structure, thereby simplifying the display module maintenance process and reducing related costs, effectively avoiding the problem that a single driver chip cannot be repaired separately after being damaged in the coplanar packaging structure of the driver chip and the LED, thereby improving the maintainability of the display module.

[0078] In one embodiment, the display module further includes a backup driving circuit;

[0079] When the standby connection component 300 is in the standby state, the standby driving circuit is connected to the fault display unit via the standby connection component 300 and the target strobe channel.

[0080] The standby driving circuit is a packaged driving chip, which has the same specifications as the driving module 210 corresponding to the display unit 200, and is used to take over the work of the driving module 210 corresponding to the faulty display unit to repair the faulty display unit.

[0081] Preferably, see Figure 2 The intermediate connecting medium 400 includes a plurality of pad groups (not shown in the figure) corresponding to the plurality of display units 200 one by one; the plurality of pad groups are arranged on the front side of the substrate 100; the display unit 200 includes a driving module 210 and a plurality of LEDs 220;

[0082] When the standby connection component 300 is in the standby state, multiple standby driving control terminals of the standby driving circuit are connected to multiple LEDs 220 corresponding to the fault display unit through the standby connection component 300, the target selection channel and the pad group corresponding to the fault display unit.

[0083] The driving module 210 includes a driving chip; the driving module 210 may be, but is not limited to, provided with a plurality of driving control terminals and functional terminals; the driving control terminal of the driving module 210 is used to connect with a plurality of LEDs 220 and provide corresponding driving control signals for the plurality of LEDs 220; the LEDs 220 are used to realize corresponding display according to the driving control signals; it should be noted that the connection method between the driving control terminal of the driving module 210 and the plurality of LEDs 220 may be, but is not limited to, a wire bonding method or a flip chip welding method, which is not specifically limited here. The functional terminal of the driving module 210 is used to realize functional control of the driving module 210, such as communication control.

[0084] Among them, each pad group corresponds to a display unit 200; the pad group may include but is not limited to a driving pad group and a functional pad group; wherein the driving pad group corresponds to the driving control end of the driving module 210, and is used to connect the driving control end of the driving module 210 with the corresponding multiple LEDs 220; the functional pad group corresponds to the functional end of the driving module 210, and is used to connect the functional end of the driving module 210 with the corresponding conventional functional circuit; the functional pad group may include but is not limited to communication pads and clock pads; conventional functional circuits may include but are not limited to data signal lines and parallel clock signal lines; it can be understood that conventional functional circuits are also arranged on the front side of the substrate 100.

[0085] It should be noted that the number of backup drive control terminals of the backup drive circuit is equal to the number of drive control terminals of the drive module 210 and the number of LEDs 220 corresponding to the drive module 210; at the same time, the backup drive circuit is also provided with a backup functional port, and the number of backup functional ports of the backup drive circuit is the same as the number of functional terminals of the drive module 210.

[0086] Exemplarily, when the standby connection component 300 is in the standby state, multiple standby drive control terminals of the standby drive circuit are connected to multiple LEDs 220 corresponding to the fault display unit via the standby connection component 300, the target selection channel and the drive pad group corresponding to the fault display unit.

[0087] In this embodiment, based on the backup driving circuit, when there is a faulty display unit, it can be connected to the faulty display unit via the backup connection component 300 and the target enabling channel to take over the work of the driving module 210 corresponding to the faulty display unit, thereby realizing the repair of the faulty display unit without disassembling the overall structure, thereby improving the efficiency and convenience of display module maintenance.

[0088] In one embodiment, the gating channel includes a first channel and a second channel; the intermediate connecting medium 400 includes a plurality of pad groups corresponding to the plurality of display units 200, a plurality of gating units corresponding to the plurality of display units 200, and internal circuits of the substrate; the plurality of gating units are arranged on the back side of the substrate 100; the gating units are provided with a plurality of input terminals and a plurality of output terminals; the standby connection component 300 includes a plurality of standby driving connection components;

[0089] The multiple input terminals corresponding to the gating unit are connected to the multiple spare driving connection components of the spare connection assembly 300 corresponding to the corresponding display unit 200 to form a first channel;

[0090] The multiple output terminals corresponding to the selection unit are connected to the multiple LEDs in the corresponding display unit through the internal circuit of the substrate and the pad group corresponding to the corresponding display unit to form a second channel.

[0091] The number of the gating units is equal to the number of the display units 200, and they are arranged on the back of the substrate 100; the gating units are provided with a plurality of input terminals and a plurality of output terminals; in an exemplary embodiment, the gating units can be, but are not limited to, a series group, which is not specifically limited here. Preferably, the gating unit is also provided with a gating switch; wherein the gating switch is used to turn on or off the corresponding gating channel. The internal circuit of the substrate has a conductive property.

[0092] Among them, the spare connection component 300 is a spare pad group; the spare drive connection component of the spare connection component 300 is a spare drive pad group, which is used to connect the spare drive control end of the spare drive circuit to the corresponding multiple LEDs 220 through the spare drive pad group set on the back of the substrate 100, the internal circuit of the substrate, and the drive pad group set on the front of the substrate 100.

[0093] In an exemplary embodiment, the multiple input terminals corresponding to the gating unit are connected to the multiple standby driving connection components of the standby connection assembly 300 corresponding to the corresponding display unit 200 through wiring on the back of the substrate 100, forming a first channel; the multiple output terminals corresponding to the gating unit are connected to the multiple LEDs 220 in the corresponding display unit 200 through the internal circuit of the substrate and the driving pad group corresponding to the corresponding display unit 200, forming a second channel. If the display unit 200 corresponding to the gating unit is a faulty display unit, the first channel and the second channel are turned on by the gating switch, so that the standby connection assembly 300 is connected to the display unit 200, i.e., the faulty display unit, through the first channel and the second channel; if the display unit 200 corresponding to the gating unit is not a faulty display unit, the first channel and the second channel are turned off by the gating switch, so that the standby connection assembly 300 and the display unit 200 are in an open circuit state.

[0094] In this embodiment, based on the gating unit, the on / off state of the standby connection component 300 and the designated display unit 200 can be accurately controlled, thereby improving the flexibility of display module maintenance.

[0095] In one embodiment, the display module further includes a regular function circuit and a standby function circuit;

[0096] Conventional functional circuits are arranged on the front side of the substrate 100;

[0097] The backup functional circuit is disposed on the back side of the substrate 100 .

[0098] Among them, the conventional functional circuit is used to provide corresponding communication data or clock signal to the driving module 210 in the display unit 200; the conventional functional circuit may include but is not limited to data signal lines and parallel clock signal lines; among them, the data signal line is used to transmit communication data to the corresponding driving module 210; the parallel clock signal line is used to transmit the clock signal to the corresponding driving module 210.

[0099] The standby function circuit is used to provide the standby driving circuit with corresponding standby communication data and / or standby clock signal in the case of a faulty display unit. The standby function circuit may include, but is not limited to, a standby data signal line and a standby clock signal line; the standby data signal line is used to transmit the standby communication data to the corresponding standby driving circuit; the standby clock signal line is used to transmit the standby clock signal to the corresponding standby driving circuit.

[0100] In this embodiment, by setting the conventional functional circuit on the front side of the substrate 100 and setting the spare functional circuit on the back side of the substrate 100, the space resources on both sides of the substrate 100 are fully utilized, so that more circuits can be reasonably arranged in a limited space, the rationality of the display module wiring is improved, and the interference or influence of the spare functional circuit on the conventional functional circuit is effectively reduced.

[0101] In one embodiment, the intermediate connecting medium includes a plurality of pad groups corresponding to the plurality of display units one by one, a plurality of gating units corresponding to the plurality of display units one by one, and internal circuits of the substrate;

[0102] When the standby connection component 300 is in the standby state, the standby driving circuit is connected to the standby functional circuit corresponding to the standby connection component 300 via the standby connection component 300;

[0103] or,

[0104] When the backup connection component 300 is in the backup state, the backup driving circuit is connected to the backup functional circuit corresponding to the backup connection component 300 via the backup connection component 300, and the backup driving circuit is connected to the regular functional circuit corresponding to the fault display unit via the backup connection component 300, the internal circuit of the substrate and the pad group corresponding to the fault display unit.

[0105] It should be noted that the above records are two display module structures. In actual applications, a more suitable display module structure can be selected according to the possible failure conditions corresponding to the display unit and the actual conditions of the display system, and no specific limitation is made here.

[0106] It should be noted that the pad group arranged on the front side of the substrate 100 may include but is not limited to a functional pad group; wherein the functional pad group may include but is not limited to a communication pad and a clock pad; conventional functional lines may include but are not limited to data signal lines and parallel clock signal lines; communication pads are used to connect data signal lines; clock pads are used to connect parallel clock signal lines.

[0107] It should be noted that the backup connection component 300 may be, but is not limited to, provided with a backup data communication connection component and a backup clock communication connection component; wherein the backup data communication connection component is a backup communication pad; and the backup clock communication connection component is a backup clock pad. The backup drive circuit is also provided with a backup function port, wherein the backup function port may be, but is not limited to, a backup communication terminal and a backup clock terminal. The backup communication terminal is used to connect to the backup data signal line; the backup clock terminal is used to connect to the parallel clock signal line, or to connect to the backup clock signal line, and needs to be selected according to the actual maintenance needs, and is not specifically limited here.

[0108] Optionally, in an exemplary embodiment, the backup functional circuit arranged on the back side of the substrate 100 includes at least a backup data signal line and a backup clock signal line; the backup data communication connection component of the backup connection component 300 is connected to the backup data signal line, and the backup clock communication connection component is connected to the backup clock signal line.

[0109] Further, when the standby connection component 300 is in the standby state, the standby communication end of the standby driving circuit is connected to the standby data communication connection component of the standby connection component 300, so that the standby communication end of the standby driving circuit is connected to the standby data signal line corresponding to the standby connection component 300; at the same time, the standby clock end of the standby driving circuit is connected to the standby clock communication connection component of the standby connection component 300, so that the standby clock end of the standby driving circuit is connected to the standby clock signal line corresponding to the standby connection component 300; further, the corresponding standby communication data and standby clock signal are provided to the standby driving circuit through the standby data signal line and the standby clock signal line.

[0110] In another exemplary embodiment, the backup functional circuit arranged on the back side of the substrate 100 includes a backup data signal line; the backup data communication connection component of the backup connection component 300 is connected to the backup data signal line; the backup clock communication connection component is connected to the parallel clock signal line via the internal circuit of the substrate and the clock pad corresponding to the fault display unit.

[0111] Furthermore, when the standby connection component 300 is in the standby state, the standby communication terminal of the standby driving circuit is connected to the standby data communication connection component of the standby connection component 300, so that the standby communication terminal of the standby driving circuit is connected to the standby data signal line corresponding to the standby connection component 300, and the standby communication data is provided to the standby driving circuit through the standby data signal line. At the same time, the standby clock terminal of the standby driving circuit is connected to the parallel clock signal line corresponding to the faulty display unit through the standby clock communication connection component of the standby connection component 300, the internal circuit of the substrate and the clock pad corresponding to the faulty display unit, and the corresponding clock signal is provided to the standby driving circuit through the parallel clock signal line.

[0112] It should be noted that the above two embodiments are described using data and clock signals as examples. In actual applications, conventional functional circuits and backup functional circuits may also include other types of functional circuits, and the implementation principles corresponding to other types of functional circuits are the same as those recorded in the above embodiments, and will not be repeated here.

[0113] In this embodiment, by providing two display module structures, the flexibility of display module maintenance is further improved.

[0114] In one embodiment, a plurality of display units 200 are arranged in an array; the spare connection components 300 are arranged in an array; and the number of the spare connection components 300 is less than or equal to the number of the display units 200 .

[0115] It should be noted that, under normal circumstances, only a few of the multiple display units 200 in the display module will malfunction and fail. Setting the number of spare connection components 300 to be less than or equal to the number of display units 200 can further reduce costs and improve the design efficiency of the display module while ensuring the maintainability of the display module.

[0116] For example, if the display module includes m×N display units 200, the m×N display units 200 are arranged in an array; wherein m represents a row, and N represents a column; m and N are both positive integers greater than 0; the display unit 200 includes a driving module 210 and a plurality of LEDs 220; the driving module 210 includes a driving chip; see Figure 3 Assuming m=3, N=6, the display module includes 3×6 display units 200 , that is, includes 3×6 driving modules 210 .

[0117] In this embodiment, by arranging the display units 200 and the backup connection components 300 in an array on the front and back of the substrate respectively, limited space can be used more efficiently, thereby improving the space utilization of the display module.

[0118] In one embodiment, the backup functional line includes a backup data signal line; the backup connection component 300 includes a backup data communication connection component;

[0119] Each row of one or more spare connection components 300 corresponds to a spare data signal line;

[0120] The spare data signal line is connected to the spare data communication connection components corresponding to one or more spare connection components 300 in the corresponding row.

[0121] Among them, the spare data communication connection component has a conductive property; the spare data communication connection component is a spare communication pad.

[0122] Optionally, in an exemplary embodiment, the backup functional line includes a backup clock signal line; the backup connection component 300 includes a backup clock communication connection component;

[0123] Each column of one or more spare connection components 300 corresponds to a spare clock signal line;

[0124] The backup clock signal line is a backup clock communication connection component corresponding to one or more backup connection components 300 in a corresponding column.

[0125] In another exemplary embodiment, the backup connection component 300 includes a backup clock communication connection component; the pad group includes a clock pad; the clock pad is disposed on the front side of the substrate 100;

[0126] Each column of one or more spare connection components 300 corresponds to a parallel clock signal line.

[0127] The backup clock communication connection component of the backup connection assembly 300 is connected to the parallel clock signal line corresponding to the display unit 200 via the internal circuit of the substrate and the clock pad corresponding to the display unit 200 .

[0128] In a first specific embodiment, the conventional functional lines include data signal lines and parallel clock signal lines;

[0129] Each row of multiple display units 200 corresponds to a data signal line;

[0130] Each column of multiple display units 200 corresponds to a parallel clock signal line.

[0131] The data signal line is used to transmit communication data to the corresponding driving module 210 ; the parallel clock signal line is used to transmit the clock signal to the corresponding driving module 210 .

[0132] Preferably, the display unit 200 includes a driving module 210; the driving module 210 is provided with a data receiving end and a clock receiving end;

[0133] A data signal line connected to a data receiving end of a driving module 210 corresponding to a plurality of display units 200 in a corresponding row;

[0134] The parallel clock signal lines are connected to the clock receiving terminals of the corresponding driving modules 210 of the corresponding columns of the plurality of display units 200 .

[0135] Among them, the data receiving end of the driving module 210 is used to connect to the data signal line via the communication pad set on the front side of the substrate 100 to receive the communication data carried on the data signal line; the clock receiving end of the driving module 210 is used to connect to the parallel clock signal line via the clock pad set on the front side of the substrate 100 to receive the clock signal transmitted on the clock signal line.

[0136] For example, Figure 3For example, it is assumed that the display module includes 3×6 display units 200, that is, 3×6 driving modules 210; the driving module is provided with a data receiving end and a clock receiving end; the driving module 210 is a driving chip. The data receiving ends of the driving chips 11, 12, 13, 14, 15, and 16 in each display unit 200 in the first row are connected in parallel to the data signal line D1, the data receiving ends of the driving chips 21, 22, 23, 24, 25, and 26 in each display unit 200 in the second row are connected in parallel to the data signal line D2, and the data receiving ends of the driving chips 31, 32, 33, 34, 35, and 36 in each display unit 200 in the third row are connected in parallel to the data signal line D3. The clock receiving ends of the driver chip 11, the driver chip 21, and the driver chip 31 in each display unit 200 in the first column are connected in parallel to the parallel clock signal line K1, and the clock receiving ends of the driver chip 12, the driver chip 22, and the driver chip 32 in each display unit 200 in the second column are connected in parallel to the parallel clock signal line K2, and so on. The clock receiving ends of multiple driver chips on each column are connected in parallel to the corresponding parallel clock signal lines.

[0137] It should be noted that Figure 3 Each driving chip is connected to a corresponding plurality of LEDs 220 (not shown in the figure) to form a display unit 200 .

[0138] Further, in an exemplary embodiment, the display module includes m×N display units 200, which are arranged in an array; the display module also includes m×N gating units, which are arranged in an array and are arranged on the back of the substrate 100; wherein m represents a row, and N represents a column; m and N are both positive integers greater than 0; the display module also includes s×N spare connection components 300, which are arranged on the back of the substrate 100; wherein s represents a row, and N represents a column; s is a positive integer greater than 0. It should be noted that for m display units 200 on each column, there are corresponding m gating units and s spare connection components 300; and each m / s display units 200 on each column correspond to one spare connection component 300.

[0139] For example, see Figure 4, if m=N=2, s=1, the display module includes 4 driver chips, namely driver chip 11, driver chip 12, driver chip 21 and driver chip 22; the display module also includes 4 selection units, namely selection unit 11, selection unit 12, selection unit 21 and selection unit 22; the display module also includes 2 spare connection components, namely spare connection component 1 and spare connection component 2. The display module also includes conventional functional circuits and spare functional circuits; wherein the conventional functional circuits include data signal lines DAT 1, DAT 2 and parallel clock signal lines CLK 1, CLK 2; the spare functional circuits include spare data signal line data 1. It should be noted that the plurality of driver chips and conventional functional circuits are all arranged on the front side of the substrate 100; the plurality of selection units, spare connection components 1 and spare connection components 2 and spare functional circuits are all arranged on the back side of the substrate 100.

[0140] Each driver chip is provided with a data receiving terminal a, a clock receiving terminal b and a plurality of driver control terminals c; wherein the plurality of driver control terminals c are driver control terminals c1 to driver control terminals c4. The standby connection component 1 and the standby connection component 2 are both provided with a standby data communication connection component, a standby clock communication connection component and a standby driver connection component; wherein the standby data communication connection component is a standby communication pad PX; the standby clock communication connection component is a standby clock pad PY; the standby driver connection component is a standby driver pad group, including a standby driver pad C1 to a standby driver pad C4.

[0141] Each gating unit has 4 input terminals and 4 output terminals. Figure 4 This is just a schematic diagram, although Figure 4 The lines corresponding to the four input terminals in each selection unit are drawn as a whole, but in actual applications, the lines corresponding to the input terminals are independent of each other.

[0142] from Figure 4It can be seen that two driver chips are arranged in each column, and there are two corresponding gating units and one spare connection component for the two driver chips; at the same time, the two driver chips in the first row correspond to one data signal line DAT 1; the two driver chips in the second row correspond to one data signal line DAT 2; the two driver chips in the first column correspond to one parallel clock signal line CLK1; the two driver chips in the second column correspond to one parallel clock signal line CLK 1. The data signal line DAT 1 is connected to the data receiving end a of the two driver chips in the first row; the data signal line DAT 2 is connected to the data receiving end a of the two driver chips in the second row; the parallel clock signal line CLK 1 is connected to the clock receiving end b of the two driver chips in the first column; the parallel clock signal line CLK 2 is connected to the clock receiving end b of the two driver chips in the second column. In addition, the four input ends of each gating unit are respectively connected to the spare driving pads C1-spare driving pads C4 of the corresponding spare connection component; the four output ends of the gating unit are respectively connected to the four LEDs corresponding to the corresponding driver chip through the internal circuit of the substrate.

[0143] Further, the spare connection component 1 and the spare connection component 2 are located in the same row and correspond to a spare data signal line data 1; that is, the spare communication pads PX corresponding to the spare connection component 1 and the spare connection component 2 are connected to the spare data signal line data 1. The spare clock pad PY of the spare connection component 1 is connected to the parallel clock signal line CLK 1 via the internal circuit of the substrate, and the spare clock pad PY of the spare connection component 2 is connected to the parallel clock signal line CLK2 via the internal circuit of the substrate.

[0144] Furthermore, in actual applications, under normal circumstances, all the gating units are in the off state; if only the driving chip 11 has a fault, the standby connection component 1 is in the standby state, the gating unit 11 is in the on state, and the gating unit 12, the gating unit 21 and the gating unit 22 all remain in the off state; at this time, the standby driving circuit (not shown in the figure) can be connected to the standby connection component 1; wherein the specifications of the standby driving circuit are consistent with the specifications of the driving chip 11; that is, the standby driving circuit includes a standby data receiving end, a standby clock receiving end and multiple standby driving control ends; wherein the multiple standby driving control ends include a standby driving control end 1-a standby driving control end 4.

[0145] Specifically, the standby data receiving end of the standby driving circuit is connected to the standby data signal line data 1 via the standby communication pad PX of the standby connection component 1; the standby clock receiving end of the standby driving circuit is connected to the parallel clock signal line CLK 1 via the standby clock pad PY of the standby connection component 1 and the internal circuit of the substrate; the standby driving control end 1 of the standby driving circuit is connected to the LED 1 corresponding to the driving chip 11 via the standby driving pad C1 of the standby connection component 1, the gating unit 11 and the internal circuit of the substrate; and so on, multiple standby driving control ends are respectively connected to the corresponding LEDs, which will not be repeated here. Based on this, the communication control of the standby driving circuit can be realized through the parallel clock signal line CLK 1 set on the front of the substrate 100 and the standby data signal line data 1 set on the back of the substrate 100. It should be noted that at this time, the driver chip 12, the driver chip 21 and the driver chip 22 that have not failed realize the corresponding communication control based on the conventional functional circuit set on the front of the substrate 100.

[0146] It should be noted that this embodiment is only one of the display module structures. Optionally, a backup clock signal line and a backup data signal line can be provided on the back of the substrate 100 to realize communication control of the backup driving circuit, which will not be described in detail here.

[0147] In this embodiment, based on the conventional functional circuit, the corresponding clock signal can be provided for the driving module 210 and the backup driving circuit, and based on the backup functional circuit, the corresponding backup communication data can be provided for the backup driving circuit. Based on this, the reliability of the driving module 210 and the backup driving circuit can be ensured, thereby improving the reliability of the display module.

[0148] In a second specific embodiment, the conventional functional lines include data signal lines and parallel clock signal lines;

[0149] Each row of multiple display units 200 corresponds to a data signal line;

[0150] Every two columns of the display units 200 correspond to one parallel clock signal line.

[0151] Preferably, the display unit 200 includes a driving module 210; the driving module 210 is provided with a first communication terminal and a second communication terminal;

[0152] The data signal lines are respectively connected to the first communication terminals of the driving modules 210 corresponding to the plurality of display units 200 in the odd columns and the second communication terminals of the driving modules 210 corresponding to the plurality of display units 200 in the even columns;

[0153] The parallel clock signal lines are respectively connected to the second communication terminals of the driving modules 210 corresponding to the display units 200 on the odd columns in the corresponding two columns, and the first communication terminals of the driving modules 210 corresponding to the display units 200 on the even columns in the corresponding two columns.

[0154] Among them, the first communication end and the second communication end of the driving module 210 can be connected to the data signal line through the communication pad set on the front side of the substrate 100, for receiving the communication data carried on the data signal line, or can be connected to the parallel clock signal line through the clock pad set on the front side of the substrate 100, for receiving the clock signal transmitted on the clock signal line; it needs to be set according to the actual driving requirements, and no specific limitation is made here.

[0155] For example, Figure 5 For example, it is assumed that the display module includes 3×6 display units 200, that is, 3×6 driving modules 210; the driving module is provided with a first communication terminal and a second communication terminal; the driving module 210 is a driving chip. The first communication terminals of the driving chips 11, 13 and 15 located on the odd columns of the first row, and the second communication terminals of the driving chips 12, 14 and 16 located on the even columns are connected to the data signal line D1 in parallel with each other; the first communication terminals of the driving chips 21, 23 and 25 located on the odd columns of the second row, and the second communication terminals of the driving chips 22, 24 and 26 located on the even columns are connected to the data signal line D2 in parallel with each other; the first communication terminals of the driving chips 31, 33 and 35 located on the odd columns of the third row, and the second communication terminals of the driving chips 32, 34 and 36 located on the even columns are connected to the data signal line D3 in parallel with each other. The second communication ends of the driver chips 11, 21 and 31 on the first column and the first communication ends of the driver chips 12, 22 and 32 on the second column are connected in parallel to the parallel clock signal line K1; and by analogy, the second communication ends of the multiple driver chips on the odd columns in the two adjacent columns and the first communication ends of the multiple driver chips on the even columns in the corresponding two columns are connected in parallel to the corresponding parallel clock signal lines, which will not be repeated here.

[0156] It should be noted that Figure 5 Each driving chip is connected to a corresponding plurality of LEDs 220 (not shown in the figure) to form a display unit 200 .

[0157] Further, in an exemplary embodiment, the display module includes m×N display units 200, which are arranged in an array; the display module also includes m×N gating units, which are arranged in an array and are arranged on the back of the substrate 100; wherein m represents a row, and N represents a column; m and N are both positive integers greater than 0; the display module also includes s×N / 2 spare connection components 300, which are arranged on the back of the substrate 100; wherein s represents a row, and N represents a column; s is a positive integer greater than 0. It should be noted that the multiple display units 200 on every two columns correspond to s spare connection components 300.

[0158] For example, see Figure 6 , if m=N=2, s=1, the display module includes 4 driver chips, namely driver chip 11, driver chip 12, driver chip 21 and driver chip 22; the display module also includes 4 selection units, namely selection unit 11, selection unit 12, selection unit 21 and selection unit 22; the display module also includes 1 spare connection component, namely spare connection component 1. The display module also includes conventional functional circuits and spare functional circuits; wherein the conventional functional circuits include data signal lines DAT 1, DAT 2 and parallel clock signal line CLK 1; the spare functional circuits include spare data signal line data1. It should be noted that multiple driver chips and conventional functional circuits are all arranged on the front side of the substrate 100; multiple selection units, spare connection component 1 and spare functional circuits are all arranged on the back side of the substrate 100.

[0159] Each driver chip is provided with a first communication terminal b, a second communication terminal a, and a plurality of driver control terminals c; wherein the plurality of driver control terminals c are driver control terminals c1 to driver control terminals c4. The standby connection component 1 is provided with a standby data communication connection component, a standby clock communication connection component, and a standby driver connection component; wherein the standby data communication connection component is a standby communication pad PX; the standby clock communication connection component is a standby clock pad PY; the standby driver connection component is a standby driver pad group, including a standby driver pad C1 to a standby driver pad C4.

[0160] Each gating unit has 4 input terminals and 4 output terminals. Figure 6 This is just a schematic diagram, although Figure 6 The lines corresponding to the four input terminals in each selection unit are drawn as a whole, but in actual applications, the lines corresponding to the input terminals are independent of each other.

[0161] Further, from Figure 6It can be seen that two driver chips are arranged on each column, and there are two corresponding gating units for the two driver chips; at the same time, the two driver chips in the first row correspond to one data signal line DAT 1; the two driver chips in the second row correspond to one data signal line DAT 2; all the driver chips in the first and second columns correspond to one parallel clock signal line CLK1. The data signal line DAT 1 is connected to the first communication terminal b of the driver chip 11 on the first row and the second communication terminal a of the driver chip 12; the data signal line DAT 2 is connected to the first communication terminal b of the driver chip 21 on the second row and the second communication terminal a of the driver chip 22; the parallel clock signal line CLK 1 is connected to the second communication terminal a of the driver chip 11 and the driver chip 21 on the first column, and the first communication terminal b of the driver chip 12 and the driver chip 22 on the second column. In addition, the four input terminals of each gating unit are respectively connected to the spare driving pads C1 to spare driving pads C4 of the spare connection component 1; the four output terminals of each gating unit are respectively connected to the four LEDs corresponding to the corresponding driver chip through the internal circuit of the substrate.

[0162] Furthermore, the spare communication pad PX of the spare connection component 1 is connected to the spare data signal line data 1; the spare clock pad PY of the spare connection component 1 is connected to the parallel clock signal line CLK 1 via the internal circuit of the substrate.

[0163] Furthermore, in actual applications, under normal circumstances, all the gating units are in the off state; if only the driving chip 11 has a fault, the standby connection component 1 is in the standby state, the gating unit 11 is in the on state, and the gating unit 12, the gating unit 21 and the gating unit 22 are all kept in the off state; at this time, the standby driving circuit (not shown in the figure) can be connected to the standby connection component 1; wherein the specifications of the standby driving circuit are consistent with the specifications of the driving chip 11; that is, the standby driving circuit includes a standby data receiving end, a standby clock receiving end and multiple standby driving control ends; wherein the multiple standby driving control ends include driving control end 1-driving control end 4.

[0164] Specifically, the standby data receiving end of the standby driving circuit is connected to the standby data signal line data 1 via the standby communication pad PX of the standby connection component 1; the standby clock receiving end of the standby driving circuit is connected to the parallel clock signal line CLK 1 via the standby clock pad PY of the standby connection component 1 and the internal circuit of the substrate; the standby driving control end 1 of the standby driving circuit is connected to the LED 1 corresponding to the driving chip 11 via the standby driving pad C1 of the standby connection component 1, the gating unit 11 and the internal circuit of the substrate; and so on, multiple standby driving control ends are respectively connected to the corresponding LEDs, which will not be repeated here. Based on this, the communication control of the standby driving circuit can be realized through the parallel clock signal line CLK 1 set on the front of the substrate 100 and the standby data signal line data 1 set on the back of the substrate 100. It should be noted that at this time, the driver chip 12, the driver chip 21 and the driver chip 22 that have not failed realize the corresponding communication control based on the conventional functional circuit set on the front of the substrate 100.

[0165] It should be noted that this embodiment is only one of the display module structures. Optionally, a backup clock signal line and a backup data signal line can be provided on the back of the substrate 100 to realize communication control of the backup driving circuit, which will not be described in detail here.

[0166] In this embodiment, based on the conventional functional circuit, the corresponding clock signal can be provided for the driving module 210 and the backup driving circuit, and based on the backup functional circuit, the corresponding backup communication data can be provided for the backup driving circuit. Based on this, the reliability of the driving module 210 and the backup driving circuit can be ensured, thereby improving the reliability of the display module.

[0167] It should be noted that a faulty display unit generally refers to a display fault of the display unit 200 itself caused by a fault in the driving module 210. Therefore, by using the display module in any of the above embodiments, the faulty display unit can be repaired without disassembling the faulty display unit. It should be understood that for similar situations not illustrated, the display module in any of the above embodiments can also be applied to ensure the maintainability of the display module.

[0168] In the above-mentioned display module, on the first aspect, a plurality of display units 200 are arranged on the front side of the substrate 100; a spare connection component 300 is arranged on the back side of the substrate 100, and each spare connection component 300 is connected to a preset number of display units 200 via an intermediate connecting medium 400 to form a preset number of gating channels, which lays a foundation for realizing the repair of a single faulty display unit; when there is a faulty display unit, the spare connection component 300 can be switched from an idle state to a standby state, and electrically connected to the faulty display unit by turning on the corresponding target gating channel, so as to allow access to the spare driving circuit to take over the work of the driving module 210 corresponding to the faulty display unit. Based on this, the repair of the faulty display unit can be completed without disassembling the entire coplanar packaging structure, thereby simplifying the display module maintenance process and reducing related costs, effectively avoiding the problem that a single driver chip cannot be repaired separately after being damaged in the coplanar packaging structure of the driver chip and the LED, and improving the maintainability of the display module. On the second hand, based on the backup driving circuit, in the case of a faulty display unit, it can be connected to the faulty display unit through the backup connection component 300 and the target gating channel to take over the work of the driving module 210 corresponding to the faulty display unit, thereby realizing the maintenance of the faulty display unit without disassembling the overall structure, and improving the efficiency and convenience of display module maintenance. On the third hand, based on the gating unit, the on-off state of the backup connection component 300 and the designated display unit 200 can be accurately controlled, thereby improving the flexibility of display module maintenance. On the fourth hand, by setting the conventional functional circuit on the front of the substrate 100 and setting the backup functional circuit on the back of the substrate 100, the space resources on both sides of the substrate 100 are fully utilized, so that more circuits can be reasonably laid out in a limited space, thereby improving the rationality of the display module wiring, and effectively reducing the interference or influence of the backup functional circuit on the conventional functional circuit. On the fifth hand, by providing two display module structures, the flexibility of display module maintenance is further improved. In a sixth aspect, by arranging the display units 200 and the backup connection components 300 in an array on the front and back of the substrate respectively, limited space can be used more efficiently, thereby improving the space utilization of the display module.

[0169] In one embodiment, the LED display system includes a main control terminal and one or more display modules in any one of the above embodiments; wherein the main control terminal is provided with a regular communication port group and a standby communication port group;

[0170] A conventional communication port group of the main control terminal is connected to conventional functional lines corresponding to one or more display modules;

[0171] The backup communication port group of the main control terminal is connected to the backup function lines corresponding to one or more display modules.

[0172] The main control end may include but is not limited to a main control chip or a main control device, which is not specifically limited here.

[0173] Among them, the conventional communication port group may include but is not limited to a communication control port and a clock control port; wherein the communication control port is used to generate communication data and transmit it to the corresponding display unit 200 in the display module via the corresponding data signal line; the clock control port is used to generate a clock signal and transmit it to the corresponding display unit 200 in the display module via the corresponding parallel clock signal line.

[0174] Among them, the backup communication port group may include but is not limited to a backup communication control port and a backup clock control port; wherein the backup communication control port is used to generate backup communication data and transmit it to the corresponding backup connection component 300 in the display module via the corresponding backup data signal line; the backup clock control port is used to generate a backup clock signal and transmit it to the corresponding backup connection component 300 in the display module via the corresponding backup clock signal line.

[0175] In this embodiment, based on the main control end, corresponding communication data, clock signal, backup communication data and backup clock signal can be provided to the display module to ensure the reliability of the display module.

[0176] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example.

[0177] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0178] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A display module, characterized in that: The display module comprises: a substrate, a plurality of display units, an intermediate connecting medium, and one or more spare connecting components; wherein the display units are all arranged on the front side of the substrate; and the spare connecting components are all arranged on the back side of the substrate; Each of the standby connection components is connected to a preset number of the display units via the intermediate connecting medium to form a preset number of gating channels; In the case that there is no faulty display unit among the preset number of display units, the standby connection component is in an idle state, and the preset number of strobe channels are all in a closed state, so that the standby connection component and the preset number of display units are in an open circuit state; In the case that there is a faulty display unit among the preset number of display units, the standby connection component is in a standby state, the target strobe channel corresponding to the faulty display unit is in an on state, and the remaining strobe channels among the preset number of strobe channels except the target strobe channel are in an off state, so that the standby connection component is connected to the faulty display unit through the target strobe channel; The display module further includes a conventional functional circuit and a standby functional circuit; the conventional functional circuit is arranged on the front side of the substrate; the standby functional circuit is arranged on the back side of the substrate; The plurality of display units are arranged in an array; the spare connection components are arranged in an array; the number of the spare connection components is less than or equal to the number of the display units; The standby function circuit includes a standby data signal line; the standby connection component includes a standby data communication connection component; Each row of one or more of the spare connection components corresponds to one of the spare data signal lines; The standby data signal line is connected to a standby data communication connection component corresponding to one or more standby connection components in a corresponding row.

2. The display module according to claim 1, characterized in that: The display module also includes a backup driving circuit; When the standby connection component is in a standby state, the standby driving circuit is connected to the fault display unit via the standby connection component and the target selection channel.

3. The display module according to claim 2, characterized in that: The intermediate connecting medium includes a plurality of pad groups corresponding to the plurality of display units one by one; the plurality of pad groups are arranged on the front side of the substrate; the display unit includes a driving module and a plurality of LEDs; When the standby connection component is in a standby state, multiple standby drive control terminals of the standby drive circuit are connected to multiple LEDs corresponding to the fault display unit via the standby connection component, the target selection channel and the pad group corresponding to the fault display unit.

4. The display module according to claim 1, characterized in that: The gating channel includes a first channel and a second channel; the intermediate connecting medium includes a plurality of pad groups corresponding to the plurality of display units, a plurality of gating units corresponding to the plurality of display units, and internal circuits of the substrate; the plurality of gating units are arranged on the back of the substrate; the gating units are provided with a plurality of input terminals and a plurality of output terminals; the standby connection assembly includes a plurality of standby driving connection components; The plurality of input terminals corresponding to the gating unit are connected to the plurality of spare driving connection components of the spare connection assembly corresponding to the corresponding display unit to form a first channel; The multiple output terminals corresponding to the selection unit are connected to the multiple LEDs in the corresponding display unit through the internal circuits of the substrate and the pad groups corresponding to the corresponding display units to form a second channel.

5. The display module according to claim 4, characterized in that: The gating unit is also provided with a gating switch; The gating switch is used to turn on or off the corresponding gating channel.

6. The display module according to claim 1, characterized in that: The intermediate connecting medium includes a plurality of pad groups corresponding to the plurality of display units, a plurality of gating units corresponding to the plurality of display units, and internal circuits of the substrate; the display module also includes a standby driving circuit; When the standby connection component is in a standby state, the standby driving circuit is connected to a standby functional circuit corresponding to the standby connection component via the standby connection component; or, When the backup connection component is in a standby state, the backup driving circuit is connected to the backup functional circuit corresponding to the backup connection component via the backup connection component, and the backup driving circuit is connected to the normal functional circuit corresponding to the fault display unit via the backup connection component, the internal circuit of the substrate and the pad group corresponding to the fault display unit.

7. The display module according to claim 1, characterized in that: The conventional functional circuits include data signal lines and parallel clock signal lines; Each row of the plurality of display units corresponds to one data signal line; Each column of the plurality of display units corresponds to one parallel clock signal line.

8. The display module according to claim 7, characterized in that: The display unit includes a driving module; the driving module is provided with a data receiving end and a clock receiving end; The data signal line is connected to the data receiving end of the driving module corresponding to the plurality of display units in the corresponding row; The parallel clock signal lines are connected to the clock receiving ends of the corresponding driving modules of the corresponding columns of the plurality of display units.

9. The display module according to claim 1, characterized in that: The conventional functional circuits include data signal lines and parallel clock signal lines; Each row of the plurality of display units corresponds to one data signal line; Every two columns of the display units correspond to one parallel clock signal line.

10. The display module according to claim 9, characterized in that: The display unit includes a driving module; the driving module is provided with a first communication terminal and a second communication terminal; The data signal lines are respectively connected to the first communication terminals of the driving modules corresponding to the plurality of display units located in the odd columns and the second communication terminals of the driving modules corresponding to the plurality of display units located in the even columns; The parallel clock signal lines are respectively connected to the second communication ends of the driving modules corresponding to the display units on the odd columns in the corresponding two columns, and the first communication ends of the driving modules corresponding to the display units on the even columns in the corresponding two columns.

11. The display module according to claim 1, characterized in that: The standby function circuit includes a standby clock signal line; the standby connection component includes a standby clock communication connection component; Each column of one or more of the standby connection components corresponds to one of the standby clock signal lines; The backup clock signal line communicates with a backup clock connection component corresponding to one or more of the backup connection components in a corresponding column.

12. An LED display system, characterized in that: The LED display system comprises a main control terminal and one or more display modules according to any one of claims 1 to 11; wherein the main control terminal is provided with a regular communication port group and a standby communication port group; The conventional communication port group of the main control terminal is connected to the conventional functional lines corresponding to one or more display modules; The backup communication port group of the main control terminal is connected to the backup function lines corresponding to one or more display modules.

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