CN211830963U - Movement main board and display device - Google Patents

Movement main board and display device Download PDF

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Publication number
CN211830963U
CN211830963U CN202020752023.9U CN202020752023U CN211830963U CN 211830963 U CN211830963 U CN 211830963U CN 202020752023 U CN202020752023 U CN 202020752023U CN 211830963 U CN211830963 U CN 211830963U
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China
Prior art keywords
display screen
resistor
output interface
main board
signal
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CN202020752023.9U
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Chinese (zh)
Inventor
李建伟
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Shenzhen TCL Digital Technology Co Ltd
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Shenzhen TCL Digital Technology Co Ltd
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Priority to CN202020752023.9U priority Critical patent/CN211830963U/en
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Publication of CN211830963U publication Critical patent/CN211830963U/en
Priority to PCT/CN2021/070629 priority patent/WO2021223460A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00Diagnosis, testing or measuring for television systems or their details
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/426Internal components of the client ; Characteristics thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry for the reception of television signals according to analogue transmission standards
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/64Constructional details of receivers, e.g. cabinets or dust covers

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The utility model discloses a core mainboard and display device, wherein, the core mainboard is connected with the display screen electricity, and the core mainboard includes: an output interface comprising a reserved port; the detection circuit is used for detecting the level of the reserved port when the display screen is electrically connected with the main board of the machine core; and the signal output module is electrically connected with the detection circuit and outputs an image signal with corresponding resolution to the display screen according to the level signal detected by the detection circuit. The utility model discloses technical scheme makes the core mainboard realize automatic identification and output the image signal that corresponds with the display screen resolution ratio to different resolution ratio display screens.

Description

Movement main board and display device
Technical Field
The utility model relates to a show technical field, in particular to display device of core mainboard and applied this core mainboard.
Background
At present, a movement mainboard of a high-end television can support the output of image signals with at least two resolutions, but the mainboard of the television cannot automatically identify display screens with different resolutions, so that the movement mainboard cannot output the image signals corresponding to the resolution of the display screens. The cost is easy to be higher when the device is developed and maintained. When developing the core mainboard of a high-resolution television, the core mainboard defaults to output an image signal as a high-resolution image signal, so a high-resolution display screen must be equipped; accordingly, when the high-resolution television is subjected to troubleshooting, another high-resolution display screen must be prepared to detect whether the failure of the television is a failure of the main board of the movement or a failure of the display screen, so that the development and maintenance costs are high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a core mainboard through the display screen of core mainboard automatic identification different resolution ratio and output and the corresponding image signal of display screen resolution ratio, reaches the effect of practicing thrift the cost.
In order to achieve the above object, the utility model provides a core mainboard is connected with the display screen electricity, the core mainboard includes:
an output interface comprising a reserved port;
the detection circuit is used for detecting the level of the reserved port when the display screen is electrically connected with the machine core mainboard; and
and the signal output module is electrically connected with the detection circuit and outputs an image signal with corresponding resolution to the display screen according to the level signal detected by the detection circuit.
Optionally, the level signal detected by the detection circuit comprises a high level and a low level; when the detection circuit detects that the level signal of the reserved port is at a high level, the signal output module outputs an image signal with a first resolution to the display screen; when the detection circuit detects that the level signal of the reserved port is low level, the signal output module outputs an image signal with a second resolution to the display screen; the second resolution is higher than the first resolution.
Optionally, the movement main board further includes a voltage dividing circuit, and an output end of the voltage dividing circuit is connected to the reserved port; the display screen comprises a first display screen and a second display screen, and the resolution of the second display screen is higher than that of the first display screen; a voltage division module is arranged at an input interface corresponding to the second display screen and the reserved port, and when the machine core main board is connected with the first display screen in an inserting mode, the reserved port outputs a high-level signal; when the machine core mainboard is connected with the second display screen in an inserting mode, the voltage division circuit is electrically connected with the voltage division module, and the reserved port outputs a low level signal.
Optionally, the output interface includes a first output interface and at least one second output interface, the second output interface includes the reserved interface, the first output interface is used for plugging the first display screen, the first output interface and the second output interface are used for plugging the second display screen together, and a voltage dividing module is arranged at an input interface corresponding to the second output interface of the second display screen; when the machine core main board is connected with the first display screen in an inserting mode, the reserved port outputs a high-level signal; when the machine core mainboard is connected with the second display screen in an inserting mode, the voltage division circuit is electrically connected with the voltage division module, and the reserved port outputs a low level signal.
Optionally, the voltage dividing circuit includes a dc power supply, a first resistor and a second resistor, the first resistor and the second resistor are sequentially connected in series between the dc power supply and ground, and the reserved port is connected to a connection point between the first resistor and the second resistor; the voltage division module further comprises a third resistor, one end of the third resistor is connected with an input interface, corresponding to the second output interface, of the second display screen, and the other end of the third resistor is grounded; when the movement main board is connected with the second display screen in an inserting mode, the third resistor is connected with the second resistor in parallel.
Optionally, the second output interface is an 80pin interface.
Optionally, the second output interface is a 96pin interface.
Optionally, the image signal of the first resolution is a 4K signal, and the image signal of the second resolution is an 8K signal.
The utility model also provides a display device, include the core mainboard as above.
The utility model discloses technical scheme sets up the reservation port through the output kneck that adopts at the core mainboard, reserve the level signal of port when being connected through detecting the core mainboard and display screen, thereby discern the display screen of different resolution ratios, and selectively export the image signal who corresponds resolution ratio, consequently when core mainboard development and maintenance, need not to be equipped with the display screen that corresponds with the core mainboard acquiescence output resolution ratio, the display screen of low resolution ratio also can be used to the development and the maintenance of the core mainboard of high-end TV set, consequently, can practice thrift the cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of an embodiment of a movement main board of the present invention;
fig. 2 is a schematic structural diagram of a display device including the core board of fig. 1.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
100 Display device 10 Machine core main board
11 Output interface 111 Reserved port
11a A first output interface 11b Second output interface
15 Detection circuit 17 Signal output module
19 Voltage divider circuit 191 Direct current power supply
30 Display screen 31 First display screen
311 A first input interface 33 Second display screen
331(311) A first input interface 333 Second input interface
335 Voltage divider circuit R1 A first resistor
R2 Second resistance R3 Third resistance
A Signal line
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a movement mainboard 10.
Referring to fig. 1 and 2, in the embodiment of the present invention, this core mainboard 10 is electrically connected with display screen 30, and core mainboard 10 includes:
an output interface 11, the output interface 11 including a reserved port 111;
the detection circuit 15 is used for detecting the level of the reserved port 111 when the display screen 30 is electrically connected with the movement mainboard 10; and
the signal output module 17 is electrically connected to the detection circuit 15, and outputs an image signal of a resolution corresponding to the level signal detected by the detection circuit 15 to the display 30.
This application core mainboard 10 is as image signal output system for to display screen 30 output image signal when being connected with display screen 30 electricity, wherein, core mainboard 10 can include the chip module, logic circuit module, power module and connect the circuit line of each module, and core mainboard 10 can support the output of multiple resolution ratio image signal, and display screen 30 can be liquid crystal display, including corresponding liquid crystal polymer layer and preceding frame isotructure. The signal line a electrically connected between the movement main board 10 and the display screen 30 may be an FFC (Flexible Flat Cable) Flexible Flat Cable.
The utility model discloses technical scheme is through adopting 11 departments of output interface at core mainboard 10 to set up reservation port 111, reserves port 111's level signal when being connected through detecting core mainboard 10 and display screen 30 to discern the display screen 30 of different resolutions, and selectively export the image signal who corresponds the resolution ratio. The output interface 11 may include a plurality of pin angles, and the reserved port 111 may be one or more pin angles; the mapping relationship between different level signals and the resolution of the output image signal can be pre-stored in the movement main board 10, and according to the level signal detected when the movement main board 10 is plugged with the display screen 30, the signal output module 17 outputs the image signal with the corresponding resolution, and the image signal with the corresponding resolution is output from the output interface 11 of the movement main board 10 to the display screen 30 through the signal line a. Therefore, when the core main board 10 is developed and maintained, a display screen corresponding to the default output resolution of the core main board 10 does not need to be equipped, and the display screen with low resolution can also be used for developing and maintaining the core main board 10 of the high-end television, so that the cost is saved.
Specifically, the level signal detected by the detection circuit 15 includes a high level and a low level; when the detection circuit 15 detects that the level signal of the reserved port 111 is at a high level, the signal output module 17 outputs an image signal of a first resolution to the display screen 30; when the detection circuit 15 detects that the level signal of the reserved port 111 is at a low level, the signal output module 17 outputs an image signal of a second resolution to the display screen 30; the second resolution is higher than the first resolution. The two different resolution display panels can be identified by setting a reference level, comparing the level signal detected by the detection circuit 15 with the reference level, and dividing the detected level signal into high level or low level.
Further, the movement main board 10 further includes a voltage dividing circuit 19, and an output end of the voltage dividing circuit 19 is connected to the reserved port 111; the display screen 30 comprises a first display screen 31 or a second display screen 33, the resolution 33 of the second display screen is higher than that of the first display screen 31, for example, the first display screen 31 is a 4K display screen, and the second display screen 33 is an 8K display screen; a voltage division module 335 is arranged at an input interface of the second display screen 33 corresponding to the reserved port 111, when the core main board 10 is plugged with the first display screen 31 through the signal line a, a voltage value at an input end of the reserved port 111 only corresponds to a voltage value at an output end of the voltage division circuit 19, and at this time, the reserved port 111 outputs a high level signal; when the movement main board 10 is plugged with the second display screen 33 through the signal line a, the signal line a not only realizes the electrical connection between the movement main board 10 and the second display screen 33, but also realizes the electrical connection between the voltage dividing circuit 19 on the movement main board 10 and the voltage dividing module 335 on the second display screen 33, and the input voltage of the reserved port 111 is changed through the electrical connection between the voltage dividing circuit 19 and the voltage dividing module 335, so that the reserved port 111 outputs a low level signal.
Specifically, the output interface 11 includes a first output interface 11a and at least one second output interface 11b, the second output interface 11b includes a reserved interface 111, the first output interface 11a is used for plugging the first display screen 31, the first output interface 11a and the second output interface 11b are used for plugging the second display screen 33 together, and the second display screen 33 is provided with a voltage dividing module 335 at an input interface corresponding to the second output interface 11 b; when the movement main board 10 is plugged with the first display screen 31, the reserved port 111 outputs a high level signal; when the movement main board 10 is plugged with the second display screen 33, the voltage dividing circuit 19 is electrically connected with the voltage dividing module 335, and the reserved port 111 outputs a low level signal.
In this embodiment, the first display screen 31 may include a first input interface 311 corresponding to the first output interface 11a, and the second display screen 33 may include a first input interface 331(311) corresponding to the first output interface 11a of the movement main board 10 and a second input interface 333 corresponding to the second output interface 11b of the movement main board 10; when the first output interface 11a of the core main board 10 is electrically connected to the first input interface 311 of the first display screen 31 through the signal line a, the second output interface 11b of the core main board 10 is in an idle state, that is, the first display screen 31 has no corresponding input interface electrically connected to the second output interface 11b on the core main board 10, so that the voltage dividing circuit 19 is not electrically connected to the voltage dividing module 335, and the voltage value of the reserved port 111 only corresponds to the voltage value of the output end of the voltage dividing circuit 19; the second display screen 33 comprises two interfaces, a first input interface 331(311) and a second input interface 333, that is, the first display screen 31 and the second display screen 33 both have a first input interface 331(311), the first output interface 11a of the movement main board 10 is connected with the first input interface 331 of the second display screen 33 through a signal line a, the second output interface 11b is connected with the second input interface 333 through another signal line a, at this time, the connection of the signal line a also realizes the conduction between the reserved port 111 of the movement main board 10 and the voltage dividing module 335 of the second display screen 33, because the output end of the voltage dividing circuit 19 is electrically connected with the reserved port 111, the voltage dividing circuit 19 of the movement main board 10 is electrically connected with the voltage dividing module 335 of the second display screen 33, and the voltage value of the reserved port 111 is changed due to the electrical connection of the voltage dividing circuit 19 and the voltage dividing module 335, so that the reserved port 111 outputs a low level signal.
Specifically, the voltage dividing circuit 19 includes a dc power supply 191, a first resistor R1, and a second resistor R2, the first resistor R1 and the second resistor R2 are sequentially connected in series between the dc power supply 191 and the ground, and the reserved port 111 is connected to a connection point between the first resistor R1 and the second resistor R2, that is, the current sequentially flows through the first resistor R1 and the second resistor R2 from the dc power supply 191, and one end of the second resistor R2, which is far away from the first resistor R1, is grounded, so that the voltage value of the reserved port 111 is the voltage value obtained by subtracting the voltage value corresponding to the first resistor R1 from the output voltage value of the dc power supply 191. The voltage dividing module 335 includes a third resistor R3, one end of the third resistor R3 is connected to the input interface of the second display screen 33 corresponding to the second output interface 11b, and the other end of the third resistor R3 is grounded. When the movement main board 10 is plugged with the second display screen 33, the third resistor R3 is connected in parallel with the second resistor R2.
In this embodiment, the first display screen 31 may include a first input interface 311 corresponding to the first output interface 11a, and the second display screen 33 may include a first input interface 331(311) corresponding to the first output interface 11a of the movement main board 10 and a second input interface 333 corresponding to the second output interface 11b of the movement main board 10. When the first output interface 11a and the first input interface 331 are electrically connected through the signal line a, and the second output interface 11b and the second input interface 333 are electrically connected through the signal line a, the voltage dividing circuit 19 and the voltage dividing module 335 are electrically connected through the signal line a, so that the second resistor R2 is connected in parallel with the third resistor R3 at this time, and the resistance value of the second resistor R2 connected in parallel with the third resistor R3 is smaller than that of the second resistor R2. When the voltage value output from the dc power supply 191 is not changed, the voltage value corresponding to the first resistor R1 increases, and therefore the voltage value at the reserved port 111 decreases, and a low-level signal appears to be output. Taking the resistance values of the first resistor R1, the second resistor R2, and the third resistor R3 as 1 ohm, and 1 ohm, respectively, and the output voltage value of the dc power supply 191 is 3 volts as an example, when the voltage dividing circuit 19 is not electrically connected to the voltage dividing module 335, the voltage value corresponding to the first resistor R1 is 1.5 volts, the voltage value of the reserved port 111 is the voltage value output by the dc power supply 191 minus the voltage value corresponding to the first resistor R1, that is, the voltage value of the reserved port 111 is 1.5 volts, and at this time, the high level signal is defaulted; when the voltage dividing circuit 19 is electrically connected to the voltage dividing module 335 through the signal line a, the parallel resistance of the second resistor R2 and the third resistor R3 is 0.5 ohm, the voltage value corresponding to the first resistor R1 is 2 volts, the voltage value of the reserved port 111 is 1 volt, the voltage value of the reserved port 111 is reduced compared to the case where the voltage dividing circuit 19 is not electrically connected to the voltage dividing module 335, and the reserved port 111 outputs a low level signal.
Further, when the first-resolution image signal is a 4K signal, the first display screen 31 is a 4K display screen; when the second resolution image signal is an 8K signal, the second display screen 33 is an 8K display screen, and at this time, the movement main board 10 has three interfaces, namely a 51pin interface, an 80pin interface and a 96 interface, the first output interface 11a is the 51pin interface, the second output interface 11b is the 80pin interface or the 96pin interface, and accordingly, the input interfaces of the first display 31 and the second display screen 33 correspond to each other. A reserved port 111 is arranged at the 80pin interface or the 96pin interface, and the level signals of the reserved port 111 are detected, so that the core mainboard 10 can recognize display screens with different resolutions.
The utility model discloses still provide a display device 100, this display device 100 includes core mainboard 10, and the concrete structure of this core mainboard 10 refers to above-mentioned embodiment, because this display device 100 has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims (9)

1. The utility model provides a core mainboard, its characterized in that is connected with the display screen electricity, the core mainboard includes:
an output interface comprising a reserved port;
the detection circuit is used for detecting the level of the reserved port when the display screen is electrically connected with the machine core mainboard; and
and the signal output module is electrically connected with the detection circuit and outputs an image signal with corresponding resolution to the display screen according to the level signal detected by the detection circuit.
2. The movement main board according to claim 1, wherein the level signal detected by the detection circuit includes a high level and a low level; when the detection circuit detects that the level signal of the reserved port is at a high level, the signal output module outputs an image signal with a first resolution to the display screen; when the detection circuit detects that the level signal of the reserved port is low level, the signal output module outputs an image signal with a second resolution to the display screen; the second resolution is higher than the first resolution.
3. The movement mainboard of claim 2, further comprising a voltage divider circuit, wherein an output end of the voltage divider circuit is connected to the reserved port; the display screen comprises a first display screen and a second display screen, and the resolution of the second display screen is higher than that of the first display screen; a voltage division module is arranged at an input interface corresponding to the second display screen and the reserved port, and when the machine core main board is connected with the first display screen in an inserting mode, the reserved port outputs a high-level signal; when the machine core mainboard is connected with the second display screen in an inserting mode, the voltage division circuit is electrically connected with the voltage division module, and the reserved port outputs a low level signal.
4. The movement mainboard of claim 3, wherein the output interface comprises a first output interface and at least one second output interface, the second output interface comprises a reserved interface, the first output interface is used for plugging the first display screen, the first output interface and the second output interface are used for plugging the second display screen together, and the second display screen is provided with a voltage division module at an input interface corresponding to the second output interface; when the machine core main board is connected with the first display screen in an inserting mode, the reserved port outputs a high-level signal; when the machine core mainboard is connected with the second display screen in an inserting mode, the voltage division circuit is electrically connected with the voltage division module, and the reserved port outputs a low level signal.
5. The movement mainboard of claim 4, wherein the voltage dividing circuit comprises a direct current power supply, a first resistor and a second resistor, the first resistor and the second resistor are sequentially connected in series between the direct current power supply and the ground, and the reserved port is connected with a connection point between the first resistor and the second resistor; the voltage division module further comprises a third resistor, one end of the third resistor is connected with an input interface, corresponding to the second output interface, of the second display screen, and the other end of the third resistor is grounded; when the movement main board is connected with the second display screen in an inserting mode, the third resistor is connected with the second resistor in parallel.
6. The movement main board according to claim 4, wherein the second output interface is an 80pin interface.
7. The movement main board according to claim 4, wherein the second output interface is a 96pin interface.
8. The movement main board according to claim 2, wherein the image signal of the first resolution is a 4K signal, and the image signal of the second resolution is an 8K signal.
9. A display device, comprising the movement main board according to any one of claims 1 to 8.
CN202020752023.9U 2020-05-08 2020-05-08 Movement main board and display device Active CN211830963U (en)

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CN202020752023.9U CN211830963U (en) 2020-05-08 2020-05-08 Movement main board and display device
PCT/CN2021/070629 WO2021223460A1 (en) 2020-05-08 2021-01-07 Machine core main board and display device

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Application Number Priority Date Filing Date Title
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021223460A1 (en) * 2020-05-08 2021-11-11 深圳Tcl数字技术有限公司 Machine core main board and display device

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