CN117809525A - Module structure and spliced display device - Google Patents

Module structure and spliced display device Download PDF

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Publication number
CN117809525A
CN117809525A CN202211169431.1A CN202211169431A CN117809525A CN 117809525 A CN117809525 A CN 117809525A CN 202211169431 A CN202211169431 A CN 202211169431A CN 117809525 A CN117809525 A CN 117809525A
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CN
China
Prior art keywords
signal
circuit board
display
interface
main body
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CN202211169431.1A
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Chinese (zh)
Inventor
阮益平
郭少飞
王世鹏
李中华
郝东佳
王建锋
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BOE Technology Group Co Ltd
BOE Jingxin Technology Co Ltd
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BOE Technology Group Co Ltd
BOE Jingxin Technology Co Ltd
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Priority to CN202211169431.1A priority Critical patent/CN117809525A/en
Publication of CN117809525A publication Critical patent/CN117809525A/en
Pending legal-status Critical Current

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Abstract

The present disclosure provides a modular structure comprising: the box body is used for bearing at least one display substrate of the spliced display device; the driving circuit board is arranged on the non-display side of the box body and is configured to drive the display substrate to display according to the received signal; the first transmission assembly is arranged on the non-display side of the box body and is used for receiving the video source signals and the voltage source signals and providing display driving signals and first target electric signals corresponding to the display substrate for the driving circuit board according to the video source signals and the voltage source signals; the second transmission assembly is arranged on the non-display side of the box body and is used for monitoring the working state of the first transmission assembly and providing the first target electric signal for the driving circuit board when the first transmission assembly is in an effective working state; and when the first transmission assembly is in a fault state, providing the display driving signal and the second target electric signal for the driving circuit board. The disclosure also provides a tiled display device.

Description

Module structure and spliced display device
Technical Field
The invention relates to the technical field of display, in particular to a module structure and a spliced display device.
Background
The micro inorganic light emitting diode comprises a Mini LED and a micro LED, wherein the Mini LED refers to a light emitting diode (Light Emitting Diode, LED) chip with the grain size of about 100-300 microns.
Micro-LEDs refer to light emitting diode chips with die sizes below 100 microns. The MiniLED/MicroLED display device has the advantages of low power consumption, high brightness, high resolution, high color saturation, high reaction speed, long service life, high efficiency and the like. In addition, a plurality of Mini-LED/Micro-LED display devices can be spliced in a seamless mode, oversized display products are achieved, and the method has wide application prospects in large-size display fields such as command monitoring centers, commercial centers, high-end conferences and cinema.
Disclosure of Invention
The present disclosure provides a modular structure comprising:
the box body is used for bearing at least one display substrate of the spliced display device;
the driving circuit board is arranged on the non-display side of the box body and is configured to drive the display substrate to display according to the received signal;
the first transmission assembly is arranged on the non-display side of the box body and is used for receiving video source signals and voltage source signals and providing display driving signals and first target electric signals corresponding to the display substrate for the driving circuit board according to the video source signals and the voltage source signals;
the second transmission assembly is arranged on the non-display side of the box body and is used for monitoring the working state of the first transmission assembly and providing the first target electric signal for the driving circuit board when the first transmission assembly is in an effective working state; and when the first transmission assembly is in a fault state, providing the display driving signal and a second target electric signal for the driving circuit board.
In some embodiments, the first transmission component comprises:
a first receiving circuit board having an input terminal configured to receive the video source signal, a first output terminal configured to output the video source signal, and a second output terminal connected to the driving circuit board and configured to output the display driving signal to the driving circuit board;
the first signal interface is connected with a first output end of the first receiving circuit board, and the second signal interface is used for outputting the display driving signal;
the first power supply line is provided with a first power supply interface and a second power supply interface at two ends respectively, the first power supply interface is used for receiving the voltage source signal, and the second power supply interface is used for outputting the voltage source signal;
and the first power supply module is connected with the first power line and is configured to provide the first target electric signal for the driving circuit board according to the voltage source signal.
In some embodiments, the first signal line includes a first connection part, a first main body part and a second connection part connected in sequence, one end of the first connection part is connected with the first signal interface, and the other end is connected with the first main body part; one end of the second connecting part is connected with the second signal interface, and the other end of the second connecting part is connected with the first main body part;
the first power line includes: the device comprises a second main body part, a third connecting part, a fourth connecting part and a fifth connecting part, wherein one end of the third connecting part is connected with the first power interface, and the other end of the third connecting part is connected with the second main body part; one end of the fourth connecting part is connected with the second power interface, and the other end of the fourth connecting part is connected with the second main body part; one end of the fifth connecting part is connected with the first power supply module, and the other end of the fifth connecting part is connected with the second main body part;
the first transmission assembly further comprises a first heat shrinkage tube, and the first heat shrinkage tube wraps the first main body portion and the second main body portion to form a first combination line.
In some embodiments, a first branching joint is provided at a junction of the first connecting portion, the third connecting portion, and the first combining line, a second branching joint is provided at a junction of the second connecting portion, the fourth connecting portion, and the first combining line, and a third branching joint is provided at a junction of the fifth connecting portion, and the first combining line.
In some embodiments, a first shielding mesh is wrapped on at least one of the first power line and the first signal line, and the first heat shrink tube wraps the first shielding mesh.
In some embodiments, the modular structure further comprises a first fastener for securing the first combination wire to the box.
In some embodiments, the second transmission component comprises:
a second receiving circuit board having an input terminal configured to receive the video source signal, a first output terminal configured to output the video source signal, and a second output terminal connected to the driving circuit board and configured to output the display driving signal to the driving circuit board when the first receiving circuit board is in a failure state;
a third signal interface and a fourth signal interface are respectively arranged at two ends of the second signal wire, the third signal interface is connected with the first output end of the second receiving circuit board, and the fourth signal interface is used for outputting the video source signal;
a third power interface and a fourth power interface are respectively arranged at two ends of the second power line, the third power interface is used for receiving the voltage source signal, and the fourth power interface is used for outputting the voltage source signal;
the second power supply module is connected with the second power line and is configured to provide the first target electric signal for the driving circuit board when the first transmission assembly is in an effective working state; and providing the second target electrical signal to the drive circuit board when the first transmission assembly is in a fault state.
In some embodiments, the second signal line includes a sixth connection part, a third main body part and a seventh connection part connected in sequence, one end of the sixth connection part is connected with the third signal interface, and the other end is connected with the third main body part; one end of the seventh connecting part is connected with the fourth signal interface, and the other end of the seventh connecting part is connected with the third main body part;
the second power line includes: a fourth main body part, an eighth connecting part, a ninth connecting part and a tenth connecting part, wherein one end of the eighth connecting part is connected with the third power interface, and the other end of the eighth connecting part is connected with the fourth main body part; one end of the ninth connecting part is connected with the fourth power interface, and the other end of the ninth connecting part is connected with the fourth main body part; one end of the tenth connecting part is connected with the second power module, and the other end of the tenth connecting part is connected with the fourth main body part;
the second transmission assembly further comprises a second heat shrinkage tube, and the second heat shrinkage tube wraps the third main body portion and the fourth main body portion to form a second combination line.
In some embodiments, a fourth wire-dividing joint is disposed at the connection of the sixth connection portion, the eighth connection portion and the second combination wire, a fifth wire-dividing joint is disposed at the connection of the seventh connection portion, the ninth connection portion and the second combination wire, and a sixth wire-dividing joint is disposed at the connection of the tenth connection portion and the second combination wire.
In some embodiments, a second shielding mesh is wrapped on at least one of the second signal wire and the second power wire, the second heat shrink wrapping the second shielding mesh.
In some embodiments, the modular structure further comprises a second fastener for securing the second combination wire to the box.
The embodiment of the disclosure also provides a tiled display device, including: the display device comprises at least one module structure and a plurality of display substrates, wherein each module structure is provided with at least one display substrate, and the module structure adopts the module structure.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:
fig. 1 is a schematic view of a splice of multiple boxes provided in some embodiments of the present disclosure.
Fig. 2 is a schematic diagram of a modular structure provided in some embodiments of the present disclosure.
Fig. 3 is a schematic diagram of a first signal line and a first power line provided in some embodiments of the present disclosure.
Fig. 4 is a schematic diagram of a first signal line and a first power line provided in other embodiments of the present disclosure.
Fig. 5 is a schematic diagram of a first signal line and a first power line provided in other embodiments of the present disclosure.
Fig. 6 is a schematic diagram of a second signal line and a second power line provided in some embodiments of the present disclosure.
Fig. 7 is a schematic perspective view of a tiled display device provided in some embodiments of the present disclosure.
Fig. 8 is a schematic view of a display substrate provided in some embodiments of the present disclosure.
Fig. 9 is an exploded view of a display module provided in some embodiments of the present disclosure.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
The terminology used herein to describe embodiments of the present disclosure is not intended to limit and/or define the scope of the present disclosure. For example, unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. It should be understood that the terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The singular forms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one, unless the context clearly dictates otherwise. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.
In the splice display device, at least one display module is installed on the box, wherein the display module includes bearing structure and the display substrate that bears. The display substrate includes a substrate and a light emitting device disposed on the substrate, and the light emitting device may include a micro-inorganic light emitting diode. Further, in the tiled display device, the number of display substrates is plural, and the plural display substrates are tiled with each other, so that a tiled display can be formed.
The number of the box bodies can be one or more, one or more supporting structures are arranged on each box body, and each supporting structure is used for supporting one or more display substrates.
Fig. 1 is a schematic view of a plurality of boxes provided in some embodiments of the present disclosure, the number of boxes being a plurality, the plurality of boxes being arranged in a plurality of rows and columns. As shown in fig. 1, four boxes 11 are spliced in a two-row and two-column manner, each box 11 is provided with a power line VL, a signal line SL, a driving circuit board 20, a power module 3 and a receiving circuit board 4, wherein the power lines VL on the same column of boxes 11 are connected together, the power lines VL are used for transmitting voltage signals (for example, 220V voltage signals), and the signal lines SL on the same column of boxes 11 are connected together for transmitting video source signals, which are signals corresponding to the display contents of the spliced display device. The receiving circuit board 4 acquires display drive signals corresponding to the display substrates carried by the case 11 based on the video source signals, and outputs the display drive signals to the driving circuit board 20. The power module 3 converts the voltage signal provided from the power line VL to provide an electrical signal to the driving circuit board 20 according to the converted voltage (e.g., 3.8V). The driving circuit board 20 drives each display substrate carried by the case 11 to display according to the electric signal and the display driving signal provided by the receiving circuit board 4.
However, when any one of the power supply line VL, the power supply module 3, the signal line SL, and the receiving circuit board 4 fails, display abnormality occurs in each display substrate carried by the case 11, thereby affecting the overall display effect of the tiled display device.
Fig. 2 is a schematic diagram of a module structure provided in some embodiments of the present disclosure, where the module structure is used in a tiled display device. As shown in fig. 2, the module structure 100 includes: the device comprises a box 11, a driving circuit board 20, a first transmission assembly 30 and a second transmission assembly 40. The case 11 is used for carrying at least one display substrate of the tiled display device.
Fig. 2 is a schematic illustration of a case 11 for carrying a plurality of display substrates. In fig. 2, the case 11 has a plurality of carrying areas Q, for example, the carrying areas Q are arranged in 4 rows and 4 columns, the size and shape of the carrying areas Q may be the same, and only one carrying area Q is illustrated in fig. 2. In some examples, a support structure may be provided between the case 11 and the display substrate, the display substrate being fixed to the support structure, and the support structure being fixed to the case 11. The housing 11 may be provided with a plurality of fasteners 91 for securing the support structure.
The first transmission assembly 30 is disposed on the non-display side of the case 11, and is configured to receive the video source signal and the voltage source signal, and provide the display driving signal and the first target electrical signal corresponding to the display substrate for the driving circuit board 20 according to the video source signal and the voltage source signal. It should be noted that, the non-display side of the case 11 refers to a side of the case 11 facing away from the display substrate, that is, a side of the case 11 facing away from the user during the use of the tiled display device.
The second transmission assembly 40 is disposed on the non-display side of the case 11, and is configured to monitor the working state of the first transmission assembly 30, and provide the first target electrical signal for the driving circuit board 20 when the first transmission assembly 30 is in the effective working state; the display driving signal and the second target electrical signal are provided to the driving circuit board 20 when the first transmission assembly 30 is in a failure state.
The driving circuit board 20 is disposed on the non-display side of the case 11, and is configured to drive the display substrate to display according to the received signal.
The effective operation state refers to a state in which the first transmission assembly 30 is not failed and can operate normally. Wherein the first target electrical signal and the second target electrical signal may each comprise a drive voltage signal and a drive current signal. When the second transmission assembly 40 and the first transmission assembly 30 simultaneously supply the driving circuit board 20 with the electrical signals, the electrical signals supplied by both should be equivalent to the electrical signals supplied by the first transmission assembly 30 or the second transmission assembly 40 alone for the driving circuit board 20. For example, when the first transmission assembly 30 fails, the first transmission assembly 30 provides the driving circuit board 20 with the display driving signal and the first target electrical signal, the first target electrical signal includes the first voltage signal V1 and the first current signal I1, and the second transmission assembly 40 also provides the driving circuit board 20 with the first voltage signal V1 and the first current signal I1, wherein the first transmission assembly 30 and the second transmission assembly 40 are equivalent to being connected in parallel, the voltage signal received by the driving circuit board 20 is V1, and the received current signal is 2×i1. When the first transmission assembly 30 fails, the second transmission assembly 40 provides the driving circuit board 20 with a display driving signal and a second target electrical signal, wherein the second target electrical signal includes a second voltage signal V2 and a second current signal I2, and the second voltage signal V2 may be set to be the same as the first voltage signal V1, and the second current signal I2 is twice the first current signal I1, and at this time, the voltage signal received by the driving circuit board 20 is V2 and is the same as V1; the current signal received by the driving circuit board 20 is 2×i1. That is, the electric signals received by the driving circuit board 20 are identical when the first transmission assembly 30 is operated alone compared with when the first transmission assembly 30 and the second transmission assembly 40 are operated simultaneously.
In the embodiment of the disclosure, when the first transmission component 30 fails, the first transmission component 30 may provide the display driving signal and the first target electrical signal for the driving circuit board 20, when the first transmission component 30 fails, the second transmission component 40 provides the display driving signal and the second target electrical signal for the signal conversion board, so as to provide a guarantee for normal display of the display substrate, and when the first transmission component 30 fails, the second transmission component 40 may still provide the first target electrical signal for the signal conversion board, so that when the first transmission component 30 fails and is switched to provide the display driving signal by the second transmission component 40, the problems of flashing, blacking and the like caused by the power supply switching problem do not occur, the picture loss does not occur, and the display consistency is ensured.
In some embodiments, as shown in fig. 2, the first transmission assembly 30 includes: the first signal line SL1, the first receiving circuit board 31, the first power line VL1, and the first power module 32.
The first receiving circuit board 31 has a first input port configured to receive the video source signal, a first output port configured to output the video source signal, and a second output port connected to the driving circuit board 20 and configured to output the display driving signal to the driving circuit board 20.
The two ends of the first signal line SL1 are respectively provided with a first signal interface 38 and a second signal interface 39, the first signal interface 38 is connected to a first output port of the first receiving circuit board 31 in the same module structure 100, and the second signal interface 39 is used for outputting a video source signal.
For example, in the tiled display device, the plurality of module structures 100 are arranged in a plurality of rows and a plurality of columns, and in the same column, the input end of the first receiving circuit board 31 in the module structure 100 located in the first row is connected to the video source, the input end of the first receiving circuit board 31 in the module structure 100 in the ith row is connected to the second signal interface 39 on the first signal line SL1 in the module structure 100 in the (i-1) th row, i is a positive integer greater than 2, and i is less than the total number of rows of the module structures 100 in the tiled display device. In the same module structure 100, the first output terminal of the first receiving circuit board 31 is connected to the first signal interface 38 on the first signal line SL 1. That is, in the same column module structure 100, the video source signal may be transmitted through the first signal line SL1, and each of the first receiving circuit boards 31 obtains the display driving signal corresponding to the display substrate according to the video source signal transmitted on the first signal line SL 1.
The two ends of the first power line VL1 are respectively provided with a first power interface 36 and a second power interface 37, the first power interface 36 is configured to receive the voltage source signal, and the second power interface 37 is configured to output the voltage source signal. The first power module 32 is connected to the first power line VL1 and is configured to provide the first target electrical signal to the driving circuit board 20 according to the voltage source signal.
For example, in the tiled display device, the plurality of module structures 100 are arranged in a plurality of rows and a plurality of columns, in the same column, in the module structures 100 located in the first row, the first power interface 36 on the first power line VL1 is connected to a voltage source, the first power interface 36 on the first power line VL1 in the module structure 100 in the ith row is connected to the second power interface 37 in the module structure 100 in the (i-1) th row, i is a positive integer greater than 2, and i is smaller than the total number of rows of the module structures 100 of the tiled display device. In the same module structure 100, the first power module 32 is connected to the first power line VL1, and the connection point is located between the first power interface 36 and the second power interface 37.
The first power interface 36 and the second power interface 37 may be plugs, and one of the first power interface 36 and the second power interface 37 is a male head and the other is a female head.
Fig. 3 is a schematic diagram of a first signal line and a first power line provided in some embodiments of the present disclosure, fig. 4 is a schematic diagram of a first signal line and a first power line provided in other embodiments of the present disclosure, and fig. 5 is a schematic diagram of a first signal line and a first power line provided in other embodiments of the present disclosure. As shown in fig. 2 to 5, the first signal line SL1 includes a first connection portion SL11, a first main body portion SL10, and a second connection portion SL12, which are sequentially connected, and one end of the first connection portion SL11 is connected to the first signal interface 38 and the other end is connected to the first main body portion SL 10. One end of the second connection portion SL12 is connected to the second signal interface 39, and the other end is connected to the first body portion SL 10.
The first power supply line VL1 includes: a second main body portion VL10, a third connecting portion VL11, a fourth connecting portion VL12, and a fifth connecting portion VL13, one end of the third connecting portion VL11 being connected to the first power interface 36, and the other end being connected to the second main body portion VL 10; one end of the fourth connection portion VL12 is connected to the second power interface 37, and the other end is connected to the second main body portion VL 10; one end of the fifth connection portion VL13 is connected to the first power module 32, and the other end is connected to the second body portion VL 10. Wherein, one end of the fifth connecting portion VL13 near the first power module 32 is provided with three lead terminals, and the three lead terminals are respectively connected to the high-level signal end, the low-level signal end and the ground end of the first power module 32.
In some embodiments, the first transmission assembly 30 further includes a first heat shrink tube (not shown) that wraps the first and second body portions SL10 and VL10 to form the first combined line LG1, thereby reducing the footprint of the cabling in the cabinet 11.
As shown in fig. 3 to 5, a first branching joint 33 is disposed at a connection position between the first connection portion SL11, the third connection portion VL11 and the first combination line LG1, where the first branching joint 33 may be in a straight shape (as shown in fig. 3 and 5) or in a T shape (as shown in fig. 4). The second branching joint 34 is disposed at the connection position of the second connection portion SL12, the fourth connection portion VL12 and the first combined line LG1, where the second branching joint 34 may be a straight-shaped (as shown in fig. 3 and 5) or a T-shaped (as shown in fig. 4). The connection between the fifth connection portion VL13 and the first combined line LG1 is provided with a third branching connector 35, and the third branching connector 35 may be a straight-line type (as shown in fig. 5) or a T-line type (as shown in fig. 3 and 4).
The first branch joint 33, the second branch joint 34 and the third branch joint 35 may be formed by injection molding, so as to improve structural stability.
In some embodiments, at least one of the first power line VL1 and the first signal line SL1 is wrapped with a first shielding mesh (not shown), and the first heat shrink tube (not shown) wraps the first shielding mesh. By providing the first shielding net, signal interference between the first signal line SL1 and the first power line VL1 can be prevented. In one example, a first shielding net may be disposed on each of the first signal line SL1 and the first power line VL 1. By the arrangement of the first heat shrink tube, the occupation space of the first power supply line VL1 and the first signal line SL1 in the case 11 can be reduced.
In some embodiments, the module structure 100 further includes a first fixing member 51 (as shown in fig. 2), and the first fixing member 51 is used to fix the first combination line LG1 on the box 11, thereby improving the arrangement stability of the first signal line SL1 and the first power line VL 1. For example, the first fixing member 51 may be a buckle, which includes a semi-closed fixing ring and a connecting portion, the fixing ring is pressed on the first combination line LG1, and the connecting portion is fixed on the case 11 by a screw. Of course, other structures of the first fixing member 51 are also possible.
The number of the first fixing members 51 may be plural so that the first signal lines SL1 and the first power lines VL1 are more stably provided on the case 11.
As shown in fig. 2, the second transmission assembly 40 includes: the second receiving circuit board 41, the second signal line SL2, the second power line VL2, and the second power module 42.
The second receiving circuit board 41 has an input end, a first output end and a second output end, the input end of the second receiving circuit board 41 is configured to receive the video source signal, the first output end of the second receiving circuit board 41 is configured to output the video source signal, the second output end of the second receiving circuit board 41 is connected with the driving circuit board 20, and the second receiving circuit board 41 is configured to output the display driving signal to the driving circuit board 20 when the first receiving circuit board 31 is in a fault state.
The two ends of the second signal line SL2 are respectively provided with a third signal interface 48 and a fourth signal interface 49, the third signal interface 48 is connected with the first output end of the second receiving circuit board 41, and the fourth signal interface 49 is used for outputting a video source signal.
For example, in the tiled display device, the plurality of module structures 100 are arranged in a plurality of rows and a plurality of columns, in the same column, the input end of the second receiving circuit board 41 in the module structure 100 located in the first row is connected to the video source, the input end of the second receiving circuit board 41 in the module structure 100 in the ith row is connected to the fourth signal interface 49 on the second signal line SL2 in the module structure 100 in the (i-1) th row, i is a positive integer greater than 2, and i is less than the total number of rows of the module structures 100 in the tiled display device. In the same module structure 100, the first output terminal of the second receiving circuit board 41 is connected to the third signal interface 48 on the second signal line SL 2. That is, in the same column module structure 100, the video source signal may be transmitted through the second signal line SL2, and each of the second receiving circuit boards 41 obtains the display driving signal corresponding to the display substrate 60 according to the video source signal transmitted on the second signal line SL 2.
The two ends of the second power line VL2 are respectively provided with a third power interface 46 and a fourth power interface 47, the third power interface 46 is configured to receive a voltage source signal, and the fourth power interface 47 is configured to output the voltage source signal. The second power module 42 is connected to the second power line VL2 and configured to provide the first target electrical signal to the driving circuit board 20 when the first transmission assembly 30 is in normal operation; and provides the second target electrical signal to the driving circuit board 20 when the first transmission assembly 30 is in a fault state.
For example, in the tiled display device, the plurality of module structures 100 are arranged in a plurality of rows and a plurality of columns, and in the same column, the third power interface 46 on the second power line VL2 in the module structure 100 of the first row is connected to a voltage source, the third power interface 46 on the second power line VL2 in the module structure 100 of the ith row is connected to the fourth power interface 47 in the module structure 100 of the (i-1) th row, i is a positive integer greater than 2, and i is smaller than the total number of rows of module structures 100 in the tiled display device. In the same module structure 100, the second power module 42 is connected to the second power line VL2, and the connection point is located between the third power interface 46 and the fourth power interface 47.
The third power interface 46 and the fourth power interface 47 may be plugs, and one of the third power interface 46 and the fourth power interface 47 is a male head and the other is a female head.
Fig. 6 is a schematic diagram of a second signal line and a second power line provided in some embodiments of the present disclosure, and as shown in fig. 6, the second signal line SL2 includes a sixth connection portion SL21, a third body portion SL20, and a seventh connection portion SL22 that are sequentially connected, and one end of the sixth connection portion SL21 is connected to the third signal interface 48 and the other end is connected to the third body portion SL 20; one end of the seventh connection part SL22 is connected to the fourth signal interface 49, and the other end is connected to the third body part SL 20.
The second power supply line VL2 includes: fourth main body portion VL20, eighth connecting portion VL21, ninth connecting portion VL22, and tenth connecting portion VL23, one end of eighth connecting portion VL21 being connected to third power interface 46, the other end being connected to fourth main body portion VL 20; one end of the ninth connection portion VL22 is connected to the fourth power interface 47, and the other end is connected to the fourth main body portion VL 20; one end of the tenth connecting portion VL23 is connected to the second power module 42, and the other end is connected to the fourth main body portion VL 20. Wherein, the tenth connecting portion VL23 is provided with three lead terminals near one end of the second power module 42, and the three lead terminals are respectively connected to the high-level signal end, the low-level signal end, and the ground end of the second power module 42.
In some embodiments, the second transmission assembly 40 further includes a second heat shrink tube (not shown) that wraps the third and fourth body portions SL20 and VL20 to form a second combined line LG2, thereby reducing the footprint of the cabling in the cabinet 11.
As shown in fig. 6, a fourth wire branching joint 43 is provided at the junction of the sixth connection portion SL21, the eighth connection portion VL21, and the second combined wire LG2, a fifth wire branching joint 44 is provided at the junction of the seventh connection portion SL22, the ninth connection portion VL22, and the second combined wire LG2, and a sixth wire branching joint 45 is provided at the junction of the tenth connection portion VL23 and the second combined wire LG 2. In the second transmission assembly 40, each of the fourth branch joint 43, the fifth branch joint 44, and the sixth branch joint 45 may be in a straight shape or in a T shape, similarly to the first transmission assembly 30. The fourth wire bond 43, the fifth wire bond 44, and the sixth wire bond 45 may all be formed using an injection molding process.
In some embodiments, a second shielding mesh (not shown) is wrapped on at least one of the second signal line SL2 and the second power line VL2, and a second heat shrink tube wraps the second shielding mesh. By the provision of the second shielding net, signal interference between the second signal line SL2 and the second power line VL2 can be prevented. In one example, a second shielding net may be disposed on both the second signal line SL2 and the second power line VL 2.
In some embodiments, as shown in fig. 2, the module structure 100 further includes a second fixing member 52, and the second fixing member 52 is used to fix the second combination wire LG2 to the box 11. The number of the second fixing members 52 may be plural so that the second signal lines SL2 and the second power lines VL2 are more stably provided on the case 11.
Fig. 7 is a schematic perspective view of a tiled display device according to some embodiments of the present disclosure, and as shown in fig. 7, the tiled display device includes at least one module structure 100 in the above embodiments and a plurality of display substrates 60, where each module structure 100 carries at least one display substrate 60.
Fig. 8 is a schematic view of a display substrate provided in some embodiments of the present disclosure, and as shown in fig. 8, a display substrate 60 includes: the substrate 60a and the light emitting device 60b disposed on the substrate 60a, the light emitting device 60b may be a micro light emitting diode or the like. In addition, the display substrate 60 may further include a protective layer 60c disposed on the substrate 60a, the protective layer 60c being located at least in a region between adjacent light emitting members 60b, and in some embodiments, the protective layer 60c may further cover a surface of the light emitting members 60b remote from the substrate 60 a. The protective layer 60c may be a film layer including carbon black particles, in which case the position of the protective layer 60c corresponding to the light emitting member 60b should have a certain light transmittance to prevent light from affecting the light emitting member 60 b. By providing the protective layer 60c, the contrast of the display screen of the display substrate 60 can be improved.
Fig. 9 is an exploded view of display modules provided in some embodiments of the present disclosure, in a tiled display device, each display module includes a supporting structure 70, and at least one display substrate 60 fixed on the supporting structure 70, that is, one display substrate 60 may be fixed on the supporting structure 70, or a plurality of display substrates 60 may be fixed on the supporting structure 70, and in the display module shown in fig. 9, one supporting structure 70 is included, and one display substrate 60 is fixed on the supporting structure 70. As shown in fig. 9, the display substrate 60 may be fixed to the supporting structure 70 by an adhesive BL. The support structure 70 is fixed to the housing 11 of the modular structure. For example, the first magnetic member 90 is disposed on the supporting structure 70, and the second magnetic member is disposed on the case 11, where the first magnetic member 90 and the second magnetic member are magnetically attracted, and the first magnetic member 90 may be a magnetic screw. Alternatively, other structures may be used to secure the support structure 70 to the housing 11.
In addition, the tiled display device may further include: the flexible circuit board 81 and the signal adapter board 82, wherein the supporting structure 70 comprises a bottom plate 72 and a side plate 71 connected with the bottom plate 72, the bottom plate 72 has a bearing surface facing the display substrate 60 and a mounting surface facing away from the display substrate 60, and the bearing surface is used for fixing the display substrate 60. The signal patch panel 82 is disposed on the mounting surface, one end of the signal patch panel 82 is connected to the driving circuit board 20 disposed on the case 11, and the other end of the signal patch panel 82 is electrically connected to the display substrate 60 through the flexible circuit board 81. The bottom plate 72 of the supporting structure 70 is provided with a hollowed-out portion V, one part of the flexible circuit board 81 is electrically connected with the display substrate 60, and the other part passes through the hollowed-out portion V to be connected with the signal adapter board 82.
The flexible wiring board 81 is electrically connected to the display substrate 60 means that the flexible wiring board 81 is electrically connected to the light emitting device. Specifically, a first binding electrode and a second binding electrode are disposed on the substrate 60a, the first binding electrode is located on one side of the substrate 60a away from the light emitting device, the second binding electrode is located on the same side of the substrate 60a as the light emitting device 60b, the first binding electrode is connected with the light emitting device 60b through a signal wire, the second binding electrode is connected with the first binding electrode through a connecting wire, a binding area at one end of the flexible circuit board 81 is connected with the first binding electrode, and the other end of the flexible circuit board 81 is connected with the connector 82a on the signal adapter board 82. In some examples, the non-display side of the display substrate 60 is provided with three flexible wiring boards 81, and the three flexible wiring boards 81 are connected in one-to-one correspondence with the connectors 82a on the signal patch panel 82. In this case, when a plurality of display substrates 60 are tiled for display, a width of a stitching seam between adjacent display substrates 60 is small.
The case includes a side wall and a top wall connected to the side wall, and the first transmission assembly 30, the second transmission assembly 40 and the driving circuit board 20 may be disposed on a side of the top wall away from the display substrate 60. The first power interface 36, the second power interface 37, the third power interface 46, and the fourth power interface 47 may be fixed to the side wall of the case 11. In addition, the driving circuit board may be provided with a first connector, and the signal adapter board is provided with a second connector, where the first connector passes through the top wall of the box 11 and is connected with the second connector, and the driving circuit board 20 may provide driving signals for the signal adapter board through the first connector and the second connector, so that the signal adapter board drives the display substrate 60 to display according to the driving signals.
In some embodiments, the tiled display device includes a plurality of die set structures arranged in a plurality of rows and columns, wherein in the same column, the first power interface 36 and the third power interface 46 on the die set structure in the first row are connected to a voltage source, the first power interface 36 of the die set structure in the i-th row is connected to the second power interface 37 of the die set structure in the (i-1) th row, and the third power interface 46 of the die set structure in the i-th row is connected to the fourth power interface 47 of the die set structure in the (i-1) th row. In the same column, in the first row of module structures, the input end of the first receiving circuit board 31 is connected with a video source, and in the ith row of module structures, the input end of the first receiving circuit board 31 is connected with the second signal interface 39 of the (i-1) th row of module structures; in the first row of the module structure, the input end of the second receiving circuit board 41 is connected with a video source, and the input end of the second receiving circuit board 41 of the ith row of the module structure is connected with the fourth signal interface 49 of the (i-1) th row of the module structure. Thus, the cascade of the same column of module structures is realized.
Of course, other cascading modes can be adopted for the multiple module structures in the tiled display device, and are not listed here.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.

Claims (12)

1. A modular structure comprising:
the box body is used for bearing at least one display substrate of the spliced display device;
the driving circuit board is arranged on the non-display side of the box body and is configured to drive the display substrate to display according to the received signal;
the first transmission assembly is arranged on the non-display side of the box body and is used for receiving video source signals and voltage source signals and providing display driving signals and first target electric signals corresponding to the display substrate for the driving circuit board according to the video source signals and the voltage source signals;
the second transmission assembly is arranged on the non-display side of the box body and is used for monitoring the working state of the first transmission assembly and providing the first target electric signal for the driving circuit board when the first transmission assembly is in an effective working state; and when the first transmission assembly is in a fault state, providing the display driving signal and a second target electric signal for the driving circuit board.
2. The modular structure of claim 1 wherein the first transmission assembly comprises:
a first receiving circuit board having an input terminal configured to receive the video source signal, a first output terminal configured to output the video source signal, and a second output terminal connected to the driving circuit board and configured to output the display driving signal to the driving circuit board;
the first signal interface is connected with a first output end of the first receiving circuit board, and the second signal interface is used for outputting the display driving signal;
the first power supply line is provided with a first power supply interface and a second power supply interface at two ends respectively, the first power supply interface is used for receiving the voltage source signal, and the second power supply interface is used for outputting the voltage source signal;
and the first power supply module is connected with the first power line and is configured to provide the first target electric signal for the driving circuit board according to the voltage source signal.
3. The module structure according to claim 2, wherein the first signal line includes a first connection portion, a first main body portion, and a second connection portion that are sequentially connected, one end of the first connection portion is connected to the first signal interface, and the other end is connected to the first main body portion; one end of the second connecting part is connected with the second signal interface, and the other end of the second connecting part is connected with the first main body part;
the first power line includes: the device comprises a second main body part, a third connecting part, a fourth connecting part and a fifth connecting part, wherein one end of the third connecting part is connected with the first power interface, and the other end of the third connecting part is connected with the second main body part; one end of the fourth connecting part is connected with the second power interface, and the other end of the fourth connecting part is connected with the second main body part; one end of the fifth connecting part is connected with the first power supply module, and the other end of the fifth connecting part is connected with the second main body part;
the first transmission assembly further comprises a first heat shrinkage tube, and the first heat shrinkage tube wraps the first main body portion and the second main body portion to form a first combination line.
4. The module structure of claim 3, wherein a first branching joint is provided at a junction of the first connecting portion, the third connecting portion, and the first combining line, a second branching joint is provided at a junction of the second connecting portion, the fourth connecting portion, and the first combining line, and a third branching joint is provided at a junction of the fifth connecting portion, and the first combining line.
5. The modular structure of claim 3 wherein at least one of the first power line and the first signal line is wrapped with a first shielding mesh, the first heat shrink tube wrapping the first shielding mesh.
6. A modular structure as claimed in claim 3, further comprising a first securing member for securing the first combination wire to the housing.
7. The modular structure of any one of claims 1 to 6, wherein the second transmission assembly comprises:
a second receiving circuit board having an input terminal configured to receive the video source signal, a first output terminal configured to output the video source signal, and a second output terminal connected to the driving circuit board and configured to output the display driving signal to the driving circuit board when the first receiving circuit board is in a failure state;
a third signal interface and a fourth signal interface are respectively arranged at two ends of the second signal wire, the third signal interface is connected with the first output end of the second receiving circuit board, and the fourth signal interface is used for outputting the video source signal;
a third power interface and a fourth power interface are respectively arranged at two ends of the second power line, the third power interface is used for receiving the voltage source signal, and the fourth power interface is used for outputting the voltage source signal;
the second power supply module is connected with the second power line and is configured to provide the first target electric signal for the driving circuit board when the first transmission assembly is in an effective working state; and providing the second target electrical signal to the drive circuit board when the first transmission assembly is in a fault state.
8. The module structure according to claim 7, wherein the second signal line includes a sixth connection portion, a third main body portion, and a seventh connection portion that are sequentially connected, one end of the sixth connection portion being connected to the third signal interface, the other end being connected to the third main body portion; one end of the seventh connecting part is connected with the fourth signal interface, and the other end of the seventh connecting part is connected with the third main body part;
the second power line includes: a fourth main body part, an eighth connecting part, a ninth connecting part and a tenth connecting part, wherein one end of the eighth connecting part is connected with the third power interface, and the other end of the eighth connecting part is connected with the fourth main body part; one end of the ninth connecting part is connected with the fourth power interface, and the other end of the ninth connecting part is connected with the fourth main body part; one end of the tenth connecting part is connected with the second power module, and the other end of the tenth connecting part is connected with the fourth main body part;
the second transmission assembly further comprises a second heat shrinkage tube, and the second heat shrinkage tube wraps the third main body portion and the fourth main body portion to form a second combination line.
9. The module structure of claim 8, wherein a fourth wire-dividing joint is provided at a junction of the sixth connecting portion, the eighth connecting portion, and the second combination wire, a fifth wire-dividing joint is provided at a junction of the seventh connecting portion, the ninth connecting portion, and the second combination wire, and a sixth wire-dividing joint is provided at a junction of the tenth connecting portion and the second combination wire.
10. The modular structure of claim 8 wherein at least one of the second signal wire and the second power wire is wrapped with a second shielding mesh, the second heat shrink tube wrapping the second shielding mesh.
11. The modular structure of claim 8 further comprising a second fastener for securing the second combination wire to the housing.
12. A tiled display device, comprising: at least one module structure and a plurality of display substrates, wherein each module structure carries at least one display substrate thereon, and the module structure adopts the module structure as claimed in any one of claims 1 to 11.
CN202211169431.1A 2022-09-23 2022-09-23 Module structure and spliced display device Pending CN117809525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211169431.1A CN117809525A (en) 2022-09-23 2022-09-23 Module structure and spliced display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211169431.1A CN117809525A (en) 2022-09-23 2022-09-23 Module structure and spliced display device

Publications (1)

Publication Number Publication Date
CN117809525A true CN117809525A (en) 2024-04-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211169431.1A Pending CN117809525A (en) 2022-09-23 2022-09-23 Module structure and spliced display device

Country Status (1)

Country Link
CN (1) CN117809525A (en)

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