Display device and method of interaction thereof

Abstract

The application provides a display device and an interaction method thereof. The display device comprises a display device, a system board, an adapter board, a first interface unit and a second interface unit. The display device has a first pluggable interface. The display device is connected with the system board through the first interface unit and the second interface unit. The display device is connected with the system board through the adapter board. The adapter board comprises a second pluggable interface, a voltage conversion module and a power supply interface. The second pluggable interface is used for receiving a first voltage output by the first pluggable interface. The voltage conversion module is connected with the second pluggable interface and is used for converting the first voltage into a second voltage and supplying power to the system board through the power supply interface. According to the application, the adapter board is arranged to supply power to the system board, so that the display device and the system board do not need to be supplied with power separately, and the system board does not need to be redesigned, thereby saving time and cost.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular, to a display device and an interaction method thereof. Background Art

[0002] Currently, most display devices, such as all-in-one conference machines, are equipped with an OPS (Open Pluggable Specification) interface, which can be used to connect to a user-customized system board with an OPS interface to achieve interaction between the all-in-one conference machine and the system board.

[0003] However, when the system board does not have an OPS interface, if you want to use the all-in-one conference machine as a display carrier and interact with the all-in-one conference machine, you need to power the system board separately. For example, the system board needs a power adapter to power it. Therefore, the system board and the all-in-one conference machine each require a socket for power supply, and the system board cannot form a whole with the all-in-one conference machine.

[0004] In addition, when the system board does not have an OPS interface, if the system board and the all-in-one conference machine are integrated into one, the system board needs to be redesigned, which not only takes too much time but also increases the corresponding cost. Summary of the Invention

[0005] In response to the shortcomings of the existing methods, this application proposes a display device and an interaction method thereof to solve the technical problems in the prior art that when the system board does not have an OPS interface, the system board needs to be powered separately, and when the system board and the all-in-one conference machine are formed into a whole, the system board needs to be redesigned, resulting in excessive time and cost increases.

[0006] In a first aspect, an embodiment of the present application provides a display device, comprising: a display device, a system board, an adapter board, a first interface unit, and a second interface unit, wherein the display device has a first pluggable interface, the display device is connected to the system board via the adapter board to supply power to the system board; the display device is connected to the system board via the first interface unit and the second interface unit to enable interaction between the display device and the system board;

[0007] The adapter plate includes:

[0008] A second pluggable interface, matching the first pluggable interface, and configured to receive a first voltage output by the first pluggable interface;

[0009] a voltage conversion module, connected to the second pluggable interface, and configured to convert the first voltage into a second voltage;

[0010] The power interface is connected to the voltage conversion module and the system board respectively, and is used to transmit the second voltage to the system board.

[0011] In a possible implementation, the first pluggable interface includes a plurality of first pins, and the second pluggable interface includes a plurality of second pins; the plurality of first pins and the plurality of second pins are matched one-to-one;

[0012] The plurality of second pins include a power pin, a ground pin and a control pin;

[0013] The control pin includes a pluggable board detection pin, and the pluggable board detection pin is connected to the ground terminal;

[0014] When the display device detects that the pluggable board detection pin is at a preset level, the display device outputs a first voltage to the power pin through the first pluggable interface.

[0015] In one possible implementation, the control pin further includes a pluggable signal status pin;

[0016] Pluggable signal status pin, connected to the voltage conversion module;

[0017] When the display device detects that the pluggable signal status pin is at a preset level, it is determined that the voltage conversion module is in the working state, and the voltage conversion module converts the first voltage into a second voltage.

[0018] In one possible implementation, the voltage conversion module includes:

[0019] an anti-overshoot circuit connected to the power pin for surge protection and outputting a third voltage equal to the first voltage;

[0020] The main circuit is connected to the anti-overshoot circuit and is used for receiving the third voltage and converting the third voltage into a second voltage, where the third voltage is greater than the second voltage.

[0021] In a possible implementation, the main circuit includes: a control chip, a first voltage divider module, a discharge module, a frequency compensation module, a second voltage divider module, a first capacitor, a first diode, an inductor, and a first resistor;

[0022] The third voltage is connected to the second pin of the control chip;

[0023] The third voltage is connected to the third pin of the control chip via the first voltage divider module;

[0024] The third pin of the control chip is connected to the pluggable signal status pin of the second pluggable interface via the first resistor;

[0025] The discharge module is connected to the fourth pin of the control chip;

[0026] The seventh pin and the ninth pin of the control chip are both connected to the ground terminal;

[0027] The first pin of the control chip is connected to the eighth pin of the control chip through the first capacitor, and is connected to the cathode of the first diode and one end of the inductor. The anode of the first diode is connected to the ground terminal. The other end of the inductor is connected to the fifth pin of the control chip through the second voltage divider module and outputs a second voltage.

[0028] The sixth pin of the control chip is connected to the ground terminal through the frequency compensation module.

[0029] In a possible implementation, the discharge module includes a second resistor and a second capacitor; the frequency compensation module includes a fourth capacitor, a fifth capacitor, and a third resistor;

[0030] The fourth pin of the control chip is connected to the ground terminal through the second resistor, and the second capacitor is connected in parallel with the second resistor;

[0031] The sixth pin of the control chip is connected to the ground terminal through the fourth capacitor, and is connected to the ground terminal through the fifth capacitor and the third resistor.

[0032] In a possible implementation, the first voltage dividing module includes a fourth resistor and a fifth resistor; the second voltage dividing module includes a sixth resistor, a seventh resistor and a sixth capacitor;

[0033] The second pin of the control chip is connected to one end of the fourth resistor, the other end of the fourth resistor is connected to one end of the fifth resistor and to the third pin of the control chip, and the other end of the fifth resistor is connected to the ground end;

[0034] The other end of the inductor is connected to one end of the sixth resistor, the other end of the sixth resistor is connected to one end of the seventh resistor and to the fifth pin of the control chip, the other end of the seventh resistor is connected to the ground end, and the sixth capacitor is connected to the sixth resistor in parallel.

[0035] In one possible implementation, the overshoot prevention circuit includes: a second diode;

[0036] The cathode of the second diode receives the first voltage, and the anode of the second diode is connected to the ground terminal; the second diode is a transient voltage suppression diode.

[0037] In a possible implementation, the control pin further includes a power state pin; the second pluggable interface further includes a level conversion circuit;

[0038] The level conversion circuit is connected to the power state pin and is used for level conversion of the level of the power state pin.

[0039] In a possible implementation, the second pluggable interface further includes a multimedia pin, a USB pin, and a communication pin; the adapter board further includes a first multimedia interface, a first USB interface, a first serial port, and a second serial port;

[0040] The multimedia pin is connected to the first multimedia interface;

[0041] The USB pin is connected to the first USB interface;

[0042] The communication pin is connected to the first serial port;

[0043] The control pin is connected to the second serial port.

[0044] In a possible implementation, the second pluggable interface further includes a first electrostatic protection circuit, a second electrostatic protection circuit, a third electrostatic protection circuit, and a fourth electrostatic protection circuit;

[0045] The multimedia pin is connected to the first electrostatic protection circuit;

[0046] The USB pin is connected to the second electrostatic protection circuit;

[0047] The communication pin is connected to the third electrostatic protection circuit;

[0048] The control pin is connected to the fourth electrostatic protection circuit.

[0049] In a second aspect, an embodiment of the present application provides an interactive method for a display device. When the display device is connected to the adapter board, the interactive method includes:

[0050] The display device outputs a first voltage to the second pluggable interface of the adapter board through the first pluggable interface;

[0051] The second pluggable interface of the adapter board outputs the first voltage to the voltage conversion module, so that the voltage conversion module converts the first voltage into a second voltage, and outputs the second voltage to the system board through the power interface, so that the system board is turned on;

[0052] The system board sends a display signal to the display device through the first interface unit, and the display device outputs a touch signal to the system board through the second interface unit.

[0053] In a possible implementation, the display device outputs a first voltage to a second pluggable interface of the adapter board through the first pluggable interface, including:

[0054] When the display device detects that the pluggable board detection pin of the adapter board is at a preset level, the display device outputs a first voltage to the second pluggable interface of the adapter board through the first pluggable interface.

[0055] In one possible implementation, the first interface unit includes a second multimedia interface and a third multimedia interface, and the second interface unit includes a second USB interface and a third USB interface; wherein the second multimedia interface and the second USB interface are arranged in the display device; the third multimedia interface and the third USB interface are arranged in the system board; the second multimedia interface matches the third multimedia interface, and the second USB interface matches the third USB interface;

[0056] Furthermore, the system board sends a display signal to the display device through the first interface unit, and the display device outputs a touch signal to the system board through the second interface unit, including:

[0057] When the display device detects that the pluggable signal status pin of the adapter board is at a preset level, the display device switches the second multimedia interface to a display signal input interface and switches the second USB interface to a touch signal output interface;

[0058] The system board establishes a connection with the second multimedia interface of the display device through the third multimedia interface and sends a display signal to the display device;

[0059] The display device establishes a connection with the third USB interface of the system board through the second USB interface, and outputs a touch signal to the system board.

[0060] The beneficial technical effects brought about by the technical solutions provided in the embodiments of the present application include:

[0061] The display device provided by the embodiment of the present application includes a display device, an adapter board and a system board. The display device has a first pluggable interface. The display device is connected to the system board through a first interface unit and a second interface unit. The adapter board includes a second pluggable interface, a voltage conversion module and a power interface. The second pluggable interface matches the first pluggable interface. The embodiment of the present application utilizes the first pluggable interface reserved for the display device. By setting up an adapter board, the first voltage output by the display device is received, and the first voltage is converted into a second voltage for the system board to power the system board. Thus, only one socket is needed to power the display device to realize power supply to the display device and the system board, so that the display device and the system board form a whole. There is no need to power the display device and the system board separately, and no two sockets are needed. Moreover, there is no need to redesign the system board, saving time and cost.

[0062] Additional aspects and advantages of the present application will be given in part in the following description, which will become apparent from the following description, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0064] Figure 1 A schematic structural diagram of a display device provided in an embodiment of the present application;

[0065] Figure 2 A schematic structural diagram of another display device provided in an embodiment of the present application;

[0066] Figure 3 A circuit schematic diagram of the second pluggable interface provided in an embodiment of the present application;

[0067] Figure 4 A circuit schematic diagram of an electrostatic protection circuit is provided for an embodiment of the present application;

[0068] Figure 5 A circuit schematic diagram of a voltage conversion module provided in an embodiment of the present application;

[0069] Figure 6 A circuit schematic diagram of a power interface provided in an embodiment of the present application;

[0070] Figure 7 A circuit diagram of a USB interface provided in an embodiment of the present application;

[0071] Figure 8 A circuit schematic diagram of a first multimedia interface provided in an embodiment of the present application;

[0072] Figure 9 A circuit schematic diagram of a first serial port provided in an embodiment of the present application;

[0073] Figure 10 A circuit schematic diagram of a second serial port provided in an embodiment of the present application;

[0074] Figure 11 A flowchart of an interactive method for a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0075] The present application is described in detail below. Examples of embodiments of the present application are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. In addition, if the detailed description of the known technology is not necessary for the features of the present application shown, it will be omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0076] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0077] It will be understood by those skilled in the art that, unless expressly stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the specification of the present application refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, "connected" or "coupled" as used herein may include wireless connections or wireless couplings. The term "and / or" used herein includes all or any units and all combinations of one or more associated listed items.

[0078] The following describes in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems with specific embodiments.

[0079] The present application provides a display device, such as Figure 1 As shown, the display device includes a display device 30, a system board 10, a first interface unit, a second interface unit, and an adapter board 20. The display device 30 has a first pluggable interface 31. The display device 30 is connected to the system board 10 through the adapter board 20 to power the system board 10. The display device 30 is connected to the system board 10 through the first interface unit and the second interface unit to enable the display device 30 and the system board 10 to interact. Optionally, the display device 30 can be a C2P conferencing all-in-one machine. The adapter board 20 includes a second pluggable interface 21, a voltage conversion module 22, and a power interface 23.

[0080] Specifically, the second pluggable interface 21 matches the first pluggable interface 31 and is configured to receive the first voltage output by the first pluggable interface 31. The matching of the first pluggable interface 31 and the second pluggable interface 21 means that the second pluggable interface 21 can be inserted into the first pluggable interface 31 and can establish a connection with the first pluggable interface 31.

[0081] The voltage conversion module 22 is connected to the second pluggable interface 21 and is configured to convert the first voltage into a second voltage.

[0082] The power interface 23 is connected to the voltage conversion module 22 and the system board 10 respectively, and is used to transmit the second voltage to the system board 10 to provide power to the system board 10 .

[0083] Specifically, the first interface unit of the display device includes a second multimedia interface 32 and a third multimedia interface 11, and the second interface unit includes a second USB interface 33 and a third USB interface 12. The display device 30 is connected to the system board 10 through the second multimedia interface 32 and the third multimedia interface 11, and is used to receive display signals sent by the system board, wherein the second multimedia interface 32 is set in the display device 30, and the third multimedia interface 11 is set in the system board 10. The display device 30 is connected to the system board 10 through the second USB interface 33 and the third USB interface 12, and is used to output touch signals to the system board 10 to achieve interaction between the display device 30 and the system board 10, wherein the second USB interface 33 is set in the display device 30, and the third USB interface 12 is set in the system board 10. The specific configuration of the second multimedia interface 32, the third multimedia interface 11, the second USB interface 33 and the third USB interface 12 is similar to that of the prior art and will not be repeated here.

[0084] The display device provided by the embodiment of the present application includes a display device, an adapter board and a system board. The display device has a first pluggable interface. The display device is connected to the system board through a first interface unit and a second interface unit. The adapter board includes a second pluggable interface, a voltage conversion module and a power interface. The second pluggable interface matches the first pluggable interface. The embodiment of the present application utilizes the first pluggable interface reserved for the display device. By setting up an adapter board, the first voltage output by the display device is received, and the first voltage is converted into a second voltage for the system board to power the system board. Thus, only one socket is needed to power the display device to realize power supply to the display device and the system board, so that the display device and the system board form a whole. There is no need to power the display device and the system board separately, and no two sockets are needed. Moreover, there is no need to redesign the system board, saving time and cost.

[0085] In some embodiments, the first pluggable interface 31 includes a plurality of first pins, and the second pluggable interface 21 includes a plurality of second pins; the plurality of first pins and the plurality of second pins are matched one-to-one.

[0086] The control pins include a pluggable board detection pin PB_DET, which is connected to the ground terminal; specifically, Figure 3 As shown, the pluggable board detection pin PB_DET can be connected to the ground terminal through a 0Ω resistor (R101).

[0087] When the display device 30 detects that the pluggable board detection pin PB_DET is at a preset level, the display device 30 outputs a first voltage OPS_DC18 to the power pin through the first pluggable interface 31. Optionally, the preset level can be a low level. The first voltage can be a DC voltage of 18V (volts).

[0088] In some embodiments, the control pins further include a pluggable signal status pin PS_ON#.

[0089] The pluggable signal status pin PS_ON# is connected to the voltage conversion module 22; when the pluggable signal status pin PS_ON# is at a preset level, it indicates that the voltage conversion module 22 is in a working state, that is, the voltage conversion module 22 is enabled to work. Optionally, the preset level can be a low level. For details, see Figure 5 As shown, the pluggable signal status pin PS_ON# is connected to the enable pin (EN) of the control chip U201 of the voltage conversion module 22 through the first resistor R207. When the pluggable signal status pin PS_ON# is at a low level (enable signal), it indicates that the voltage conversion module 22 is enabled.

[0090] When the display device 30 detects that the pluggable signal status pin PS_ON# is at a preset level, it is determined that the voltage conversion module 22 is in the working state, and the voltage conversion module 22 converts the first voltage into a second voltage.

[0091] In some embodiments, as Figure 5 As shown, the voltage conversion module 22 includes an anti-overshoot circuit 221 and a main circuit 222 .

[0092] The anti-overshoot circuit 221 is connected to the power pin for surge protection and outputs a third voltage VCC_18V. The third voltage VCC_18V is equal to the first voltage OPS_DC18.

[0093] The main circuit 222 is connected to the anti-overshoot circuit 221 and is configured to receive the third voltage VCC_18V and convert the third voltage VCC_18V into a second voltage VCC_SYS_12V. The third voltage VCC_18V is greater than the second voltage VCC_SYS_12V. The second voltage VCC_SYS_12V may be a 12V DC voltage.

[0094] For example, Figure 5As shown, the main circuit 222 includes a control chip U201, a first filtering module 2221, a first voltage divider module 2222, a discharge module 2223, a frequency compensation module 2224, a second voltage divider module 2225, a second filtering module 2226, a first capacitor C203, a first diode D2109, an inductor L201, and a first resistor R207. The control chip U201 is a step-down converter chip.

[0095] The third voltage VCC_18V is connected to the second pin of the control chip U201 via the first filtering module 2221 .

[0096] The third voltage VCC_18V is connected to the third pin of the control chip U201 via the first voltage dividing module 2222 .

[0097] The third pin of the control chip U201 is connected to the pluggable signal status pin PS_ON# of the second pluggable interface 21 via the first resistor R207 .

[0098] The discharge module 2223 is connected to the fourth pin of the control chip U201;

[0099] The seventh pin and the ninth pin of the control chip U201 are both connected to the ground terminal;

[0100] The first pin of the control chip U201 is connected to the eighth pin of the control chip U201 through the first capacitor C203, and is connected to the cathode of the first diode D2109 and one end of the inductor L201. The anode of the first diode D2109 is connected to the ground end. The other end of the inductor L201 is connected to the fifth pin of the control chip U201 through the second voltage divider module 2225, and outputs the second voltage VCC_SYS_12V through the second filtering module 2226; the second voltage VCC_SYS_12V is 12V.

[0101] The sixth pin of the control chip U201 is connected to the ground terminal through the frequency compensation module 2224 .

[0102] Exemplarily, the discharge module 2223 includes a second resistor R2217 and a second capacitor C210; the frequency compensation module 2224 includes: a fourth capacitor C211, a fifth capacitor C212 and a third resistor R206;

[0103] The discharge module 2223 can slowly start the fourth pin of the control chip. The frequency compensation module 2224 can reduce the clock and phase difference to synchronize the input and output frequencies to prevent frequency variation from attenuation or loss.

[0104] The fourth pin of the control chip U201 is connected to the ground terminal through the second resistor R2217, and the second capacitor C210 is connected in parallel with the second resistor R2217;

[0105] The sixth pin of the control chip U201 is connected to the ground terminal through the fourth capacitor C211, and is connected to the ground terminal through the fifth capacitor C212 and the third resistor R206.

[0106] Exemplarily, the first voltage divider module 2222 includes a fourth resistor R202 and a fifth resistor R204. Specifically, the second pin of the control chip U201 is connected to one end of the fourth resistor R202, the other end of the fourth resistor R202 is connected to one end of the fifth resistor R204 and to the third pin of the control chip U201, and the other end of the fifth resistor R204 is connected to ground.

[0107] Exemplarily, the second voltage divider module 2225 includes a sixth resistor R203, a seventh resistor R205, and a sixth capacitor C204. Specifically, the other end of the inductor L201 is connected to one end of the sixth resistor R203, the other end of the sixth resistor R203 is connected to one end of the seventh resistor R205 and to the fifth pin of the control chip U201, the other end of the seventh resistor R205 is connected to ground, and the sixth capacitor C204 is connected in parallel with the sixth resistor R203.

[0108] Exemplarily, the first filtering module 2221 includes a seventh capacitor C208 and an eighth capacitor C209. One end of the seventh capacitor C208 is connected to the second pin of the control chip U201, and the other end of the seventh capacitor C208 is connected to the ground terminal. The seventh capacitor C208 and the eighth capacitor C209 are connected in parallel.

[0109] Illustratively, the second filtering module 2226 includes a ninth capacitor C205, a tenth capacitor C206, an eleventh capacitor C207, a twelfth capacitor C304, a thirteenth capacitor C213, and a fourteenth capacitor C303. The ninth capacitor C205, the tenth capacitor C206, the eleventh capacitor C207, the twelfth capacitor C304, the thirteenth capacitor C213, and the fourteenth capacitor C303 are all connected in parallel.

[0110] For example, Figure 5 As shown, the overshoot prevention circuit 221 includes a second diode D201. The cathode of the second diode D201 receives the first voltage OPS_DC18, and the anode of the second diode D201 is connected to the ground terminal. The second diode D201 is a transient voltage suppressor (TVS) diode. When the two ends of the TVS diode are subjected to a transient high-energy impact, the TVS diode changes the impedance between the two ends from high impedance to low impedance at a speed of picoseconds (picoseconds) to absorb the instantaneous high current and clamp the voltage across the TVS diode to a predetermined value, thereby protecting the subsequent voltage conversion module from the impact of the transient high-voltage spike pulse.

[0111] Optionally, the anti-overshoot circuit 221 further includes a fuse F201, a fifteenth capacitor C201, a sixteenth capacitor C202, and an eighth resistor R201 (optional). The first voltage OPS_DC18 outputs a third voltage VCC_18V through the fuse F201, the eighth resistor R201 is connected in parallel with the fuse F201, the first voltage OPS_DC18 is connected to the ground terminal via the second diode D201, and the third voltage VCC_18V is output via the fuse F201. The third voltage VCC_18V is connected to the ground terminal via the fifteenth capacitor C201, and the sixteenth capacitor C202 is connected in parallel with the fifteenth capacitor C201. The fuse F201 can serve as an overload protection. When the current abnormally rises to a certain height and temperature, the fuse F201 melts and cuts off the current to protect the normal operation of the circuit; the fifteenth capacitor C201 and the sixteenth capacitor C202 are filter capacitors to filter the third voltage VCC_18V.

[0112] Optionally, the voltage conversion module 22 further includes an indicator light circuit 223, which is connected to the main circuit 222. The indicator light circuit 223 can be used to reflect the working status of the circuit. For example, when the indicator light is on, it indicates that the main circuit is working normally. If the indicator light is off, it indicates that the main circuit is not working or is working abnormally.

[0113] The indicator light circuit 223 includes a ninth resistor R2115, a tenth resistor R2116, a third diode D2107, and a fourth diode D2108. The third voltage VCC_18V is connected to the ground via the ninth resistor R2115 and the third diode D2107. The second voltage VCC_SYS_12V is connected to the ground via the tenth resistor R2116 and the fourth diode D2108.

[0114] In some embodiments, as Figure 6 As shown, the power interface 23 may include two interfaces, CON201 and J201, which are connected to each other. Either CON201 or J201 can be selected. Only one of the interfaces can be used according to actual needs.

[0115] The following combination Figure 1 、 Figure 3 、 Figure 5 and Figure 6 , the implementation process of the display device 30 supplying power to the system board 10 is described in detail as follows:

[0116] The first pluggable interface 31 of the display device 30 is connected to the second pluggable interface 21 of the adapter board 20 , and the power interface 23 of the adapter board 20 is connected to the system board 10 through a power line.

[0117] When the display device 30 detects that the pluggable board detection pin PB_DET of the second pluggable interface 21 of the adapter board 20 is at a low level, the display device 30 outputs the first voltage OPS_DC18 (18V) to the second pluggable interface 21 of the adapter board 20 through the first pluggable interface 31 .

[0118] The second pluggable interface 21 outputs the first voltage OPS_DC18 (18V) to the anti-overshoot circuit 221. After passing through the second diode D201, the fuse F201, the fifteenth capacitor C201 and the sixteenth capacitor C202 of the anti-overshoot circuit 221, the first voltage OPS_DC18 is surge protected, overload protected and filtered, and then the third voltage VCC_18V is output to the main circuit 222. The first voltage and the third voltage are equal to each other and are both 18V.

[0119] The main circuit 222 uses a control chip U201, an inductor L201, and a first diode D2109 to form a BUCK circuit architecture, converting the third voltage VCC_18V (18V) into a second voltage (12V) to achieve the purpose of voltage conversion. The control chip U201 is a buck converter chip that integrates low-power and high-power MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors). Optionally, the model of the control chip U201 can be TPS54332DDAR. Of course, the control chip U201 can also use other types of buck converter chips, which is not limited in this application. Specifically, the second pin (VIN) of the control chip U201 receives the third voltage VCC_18V (18V), the eighth pin (SW) of the control chip U201 is connected to the cathode of the first diode D2109 and one end of the inductor L201, the anode of the first diode D2109 is connected to the ground end, and the other end of the inductor L201 outputs the second voltage VCC_SYS_12V (12V).

[0120] The main circuit 222 outputs the second voltage VCC_SYS_12V (12V) to the power interface 23. The power interface 23 outputs the second voltage (12V) to the system board 10 via the power line to provide power to the system board 10. The power interface 23 may include two interfaces, CON201 and J201. CON201 and J201 are connected. Either CON201 or J201 can be selected.

[0121] In some embodiments, as Figure 3 As shown, the control pins further include a power status pin PWR_STATUS; the second pluggable interface 21 further includes a level conversion circuit 211 .

[0122] The level conversion circuit 211 is connected to the power state pin PWR_STATUS, and is used to convert the level of the power state pin PWR_STATUS and then send it to the corresponding interface, such as the second serial port 27 (the setting method of the second serial port 27 is as shown in FIG. Figure 10 shown) connected.

[0123] Exemplarily, the level conversion circuit 211 includes a seventh resistor R105, an eighth resistor R104, a transistor Q101, and a fifteenth capacitor C101. The transistor Q101 is a triode.

[0124] Specifically, the power status pin PWR_STATUS is connected to the ground terminal through the fifteenth capacitor C101, and is connected to the collector of the transistor Q101. The emitter of the transistor Q101 is connected to the ground terminal. The base of the transistor Q101 is connected to the ground terminal through the eighth resistor R104, and is connected to the reserved second serial port 207 through the seventh resistor R105.

[0125] In some embodiments, as Figure 3 As shown, the second pluggable interface 21 also includes a multimedia pin, a USB pin and a communication pin. Figure 2 As shown, the adapter board 20 also includes a first multimedia interface 25, a first USB interface 24, a first serial port 26 and a second serial port 27. The first multimedia interface 25, the first USB interface 24, the first serial port 26 and the second serial port 27 are all reserved interfaces and are all connected to the second pluggable interface 21.

[0126] like Figure 2 and Figure 3 As shown, the multimedia pin is connected to the first multimedia interface 25. The USB pin is connected to the USB interface 24. The communication pin is connected to the first serial port 26, which can be a Universal Asynchronous Receiver / Transmitter (UART) serial port. The control pin (such as Figure 3 The pluggable board detection pin, pluggable signal status pin and power status pin in the OPS are connected to the second serial port 27, and the second serial port can be a control serial port of the OPS.

[0127] Specifically, such as Figure 7 As shown, the USB interface 24 can include three interfaces: USB301, USB302, and USB303. USB301 is connected to CON301, USB302 is connected to CON302, and USB303 is connected to CON303. USB301 and CON301 are two-choice interfaces, USB302 and CON302 are two-choice interfaces, and USB303 and CON303 are two-choice interfaces. Only one of the interfaces can be used according to actual needs.

[0128] like Figure 8 As shown, the first multimedia interface 25 includes J301, which is an HDMI Type-A port. Pin 18 of J301 is connected to the ground terminal through capacitors C301 and C302.

[0129] like Figure 9 and Figure 10 As shown, the first serial port 26 includes CON 304, and the second serial port 27 includes CON 305. Both CON 304 and CON 305 are PH2.0-4P pin headers.

[0130] In some embodiments, as Figure 3 and Figure 4 As shown, the second pluggable interface 21 further includes a first electrostatic protection circuit 212 , a second electrostatic protection circuit 213 , a third electrostatic protection circuit 214 and a fourth electrostatic protection circuit 215 to provide electrostatic protection for the pins of the socket of the adapter board.

[0131] The multimedia pin is connected to the first electrostatic protection circuit 212 .

[0132] The USB pin is connected to the second electrostatic protection circuit 213 .

[0133] The communication pin is connected to the third electrostatic protection circuit 214 .

[0134] The control pin is connected to the fourth electrostatic protection circuit 215 .

[0135] Optionally, the first electrostatic protection circuit 212 includes a plurality of first electrostatic diodes (such as Figure 4 The electrostatic diodes D101, D102, D103, D104, and the integrated electrostatic diodes U101, U102).

[0136] Optionally, the second electrostatic protection circuit 213 includes a plurality of second electrostatic diodes (such as Figure 4 Electrostatic diodes D108, D109, D110, D111, D112, D113, D114, D115, D116, D117).

[0137] Optionally, the third electrostatic protection circuit 214 includes a plurality of third electrostatic diodes (such as Figure 4 Electrostatic diodes D118 and D119 in it).

[0138] Optionally, the fourth electrostatic protection circuit 215 includes a plurality of fourth electrostatic diodes (such as Figure 4 Electrostatic diodes D105, D106, D107).

[0139] Based on the same inventive concept, the embodiment of the present application provides an interactive method for a display device. When the display device is connected to the adapter board, as shown in FIG. Figure 11 As shown, the interaction method includes:

[0140] S1: The display device outputs a first voltage to a second pluggable interface of the adapter board through the first pluggable interface;

[0141] S2: The second pluggable interface of the adapter board outputs the first voltage to the voltage conversion module, so that the voltage conversion module converts the first voltage into a second voltage, and outputs the second voltage to the system board through the power interface, so that the system board is turned on;

[0142] S3: The system board sends a display signal to the display device through the first interface unit, and the display device outputs a touch signal to the system board through the second interface unit.

[0143] In some embodiments, the display device outputs a first voltage to a second pluggable interface through the first pluggable interface, including:

[0144] When the display device detects that the pluggable board detection pin PB_DET of the adapter board is at a preset level, the display device outputs the first voltage to the second pluggable interface through the first pluggable interface.

[0145] The first interface unit includes a second multimedia interface 32 and a third multimedia interface 11, and the second interface unit includes a second USB interface 33 and a third USB interface 12. The second multimedia interface 32 and the second USB interface 33 are disposed within the display device 30. The third multimedia interface 11 and the third USB interface 12 are disposed within the system board 10. The second multimedia interface 32 matches the third multimedia interface 11, and the second USB interface 33 matches the third USB interface 12.

[0146] In some embodiments, the system board sends a display signal to the display device through the first interface unit, and the display device outputs a touch signal to the system board through the second interface unit, including:

[0147] When the display device detects that the pluggable signal status pin PS_ON# of the adapter board is at a preset level, the display device switches the second multimedia interface to a display signal input interface and switches the second USB interface to a touch signal output interface;

[0148] The system board establishes a connection with the second multimedia interface of the display device through the third multimedia interface and sends a display signal to the display device;

[0149] The display device establishes a connection with the third USB interface of the system board through the second USB interface, and outputs a touch signal to the system board.

[0150] Among them, the preset level can be a low level, and the pluggable signal status pin PS_ON# is a low level, indicating that the voltage conversion module 22 is in a working state, that is, the voltage conversion module 22 is enabled to work, and the voltage conversion module 22 outputs a second voltage to power the system board 10.

[0151] In a specific application scenario, the process of powering and interacting between the display device and the system board is as follows: the display device powers the system board: After the display device is connected to the adapter board, when the display device detects that the pluggable board detection pin PB_DET of the adapter board is at a low level, the display device outputs a first voltage to the second pluggable interface of the adapter board through the first pluggable interface. The second pluggable interface of the adapter board outputs the first voltage to the voltage conversion module, causing the voltage conversion module to convert the received first voltage into a second voltage, and output the second voltage to the system board through the power interface, causing the system board to start up and thus power the system board.

[0152] The display device interacts with the system board: when the display device detects that the pluggable signal status pin PS_ON# of the adapter board is at a low level, the display device switches the second multimedia interface to a display signal input interface, and switches the second USB interface to a touch signal output interface; the system board establishes a connection with the second multimedia interface of the display device through the third multimedia interface, and sends a display signal to the display device; the display device establishes a connection with the third USB interface of the system board through the second USB interface, and outputs a touch signal to the system board to realize the interaction between the display device and the system board.

[0153] By applying the embodiments of the present application, at least the following beneficial effects can be achieved:

[0154] The display device provided by the embodiment of the present application includes a display device, an adapter board and a system board. The display device has a first pluggable interface. The display device is connected to the system board through a first interface unit and a second interface unit. The adapter board includes a second pluggable interface, a voltage conversion module and a power interface. The second pluggable interface matches the first pluggable interface. The embodiment of the present application utilizes the first pluggable interface reserved for the display device. By setting up an adapter board, the first voltage output by the display device is received, and the first voltage is converted into a second voltage for the system board to power the system board. Thus, only one socket is needed to power the display device to realize power supply to the display device and the system board, so that the display device and the system board form a whole. There is no need to power the display device and the system board separately, and no two sockets are needed. Moreover, there is no need to redesign the system board, saving time and cost.

[0155] Those skilled in the art will appreciate that the steps, measures, and schemes in the various operations, methods, and processes discussed in this application may be interchanged, modified, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and processes discussed in this application may also be interchanged, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and schemes in the prior art that are similar to those disclosed in this application may also be interchanged, modified, rearranged, decomposed, combined, or deleted.

[0156] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0157] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0158] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0159] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0160] It should be understood that although the steps in the flowcharts of the accompanying drawings are shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the flowcharts of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0161] The above description is only part of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A display device, characterized in that: include: A display device, a system board, an adapter board, a first interface unit and a second interface unit, wherein the display device has a first pluggable interface, and the display device is connected to the system board through the adapter board to supply power to the system board; The display device is connected to the system board via a first interface unit and a second interface unit, so as to enable the display device and the system board to interact; The adapter plate includes: a second pluggable interface, matching the first pluggable interface and configured to receive a first voltage output by the first pluggable interface; a voltage conversion module, connected to the second pluggable interface, and configured to convert the first voltage into a second voltage; A power interface is connected to the voltage conversion module and the system board respectively, and is used to transmit the second voltage to the system board.

2. The display device according to claim 1, wherein The first pluggable interface includes a plurality of first pins, and the second pluggable interface includes a plurality of second pins; the plurality of first pins and the plurality of second pins are matched one-to-one; The plurality of second pins include a power pin, a ground pin and a control pin; The control pin includes a pluggable board detection pin, and the pluggable board detection pin is connected to the ground terminal; When the display device detects that the pluggable board detection pin is at a preset level, the display device outputs a first voltage to the power pin through the first pluggable interface.

3. The display device according to claim 2, wherein The control pins also include pluggable signal status pins; The pluggable signal status pin is connected to the voltage conversion module; When the display device detects that the pluggable signal status pin is at a preset level, it is determined that the voltage conversion module is in a working state, and the voltage conversion module converts the first voltage into a second voltage.

4. The display device according to claim 3, wherein The voltage conversion module includes: an anti-overshoot circuit, connected to the power pin, for surge protection, and outputting a third voltage, the third voltage being equal in magnitude to the first voltage; The main circuit is connected to the anti-overshoot circuit, and is used to receive the third voltage and convert the third voltage into a second voltage, where the third voltage is greater than the second voltage.

5. The display device according to claim 4, wherein: The main circuit includes: a control chip, a first voltage dividing module, a discharge module, a frequency compensation module, a second voltage dividing module, a first capacitor, a first diode, an inductor and a first resistor; The third voltage is connected to the second pin of the control chip; The third voltage is connected to the third pin of the control chip via the first voltage divider module; The third pin of the control chip is connected to the pluggable signal status pin of the second pluggable interface via the first resistor; The discharge module is connected to the fourth pin of the control chip; The seventh pin and the ninth pin of the control chip are both connected to the ground terminal; The first pin of the control chip is connected to the eighth pin of the control chip through the first capacitor, and is connected to the cathode of the first diode and one end of the inductor. The anode of the first diode is connected to the ground end. The other end of the inductor is connected to the fifth pin of the control chip through the second voltage divider module and outputs the second voltage. The sixth pin of the control chip is connected to the ground terminal through the frequency compensation module.

6. The display device according to claim 5, wherein: The discharge module includes a second resistor and a second capacitor; the frequency compensation module includes: a fourth capacitor, a fifth capacitor and a third resistor; The fourth pin of the control chip is connected to the ground terminal through the second resistor, and the second capacitor is connected in parallel with the second resistor; The sixth pin of the control chip is connected to the ground terminal through the fourth capacitor, and is connected to the ground terminal through the fifth capacitor and the third resistor.

7. The display device according to claim 5, wherein: The first voltage dividing module includes a fourth resistor and a fifth resistor; the second voltage dividing module includes a sixth resistor, a seventh resistor and a sixth capacitor; The second pin of the control chip is connected to one end of the fourth resistor, the other end of the fourth resistor is connected to one end of the fifth resistor and to the third pin of the control chip, and the other end of the fifth resistor is connected to the ground end; The other end of the inductor is connected to one end of the sixth resistor, the other end of the sixth resistor is connected to one end of the seventh resistor and to the fifth pin of the control chip, the other end of the seventh resistor is connected to the ground end, and the sixth capacitor is connected to the sixth resistor in parallel.

8. The display device according to claim 4, wherein: The anti-overshoot circuit includes: a second diode; The cathode of the second diode receives the first voltage, and the anode of the second diode is connected to the ground terminal; the second diode is a transient voltage suppressor diode.

9. The display device according to claim 3, wherein: The control pin further includes a power status pin; the second pluggable interface further includes a level conversion circuit; The level conversion circuit is connected to the power status pin and is used to convert the level of the power status pin.

10. The display device according to claim 9, wherein The second pluggable interface further includes a multimedia pin, a USB pin, and a communication pin; the adapter board further includes a first multimedia interface, a first USB interface, a first serial port, and a second serial port; The multimedia pin is connected to the first multimedia interface; The USB pin is connected to the first USB interface; The communication pin is connected to the first serial port; The control pin is connected to the second serial port.

11. The display device according to claim 10, wherein: The second pluggable interface further includes a first electrostatic protection circuit, a second electrostatic protection circuit, a third electrostatic protection circuit, and a fourth electrostatic protection circuit; The multimedia pin is connected to the first electrostatic protection circuit; The USB pin is connected to the second electrostatic protection circuit; The communication pin is connected to the third electrostatic protection circuit; The control pin is connected to the fourth electrostatic protection circuit.

12. An interactive method for a display device according to any one of claims 1 to 11, characterized in that: After the display device is connected to the adapter board, the interaction method includes: The display device outputs a first voltage to the second pluggable interface of the adapter board through the first pluggable interface; The second pluggable interface of the adapter board outputs the first voltage to the voltage conversion module, so that the voltage conversion module converts the first voltage into a second voltage, and outputs the second voltage to the system board through the power interface, so that the system board is turned on; The system board sends a display signal to the display device through a first interface unit, and the display device outputs a touch signal to the system board through a second interface unit.

13. The interactive method of a display device according to claim 12, characterized in that: The display device outputs a first voltage to the second pluggable interface of the adapter board through the first pluggable interface, comprising: When the display device detects that the pluggable board detection pin of the adapter board is at a preset level, the display device outputs a first voltage to the second pluggable interface of the adapter board through the first pluggable interface.

14. The interactive method of a display device according to claim 12, characterized in that: The first interface unit includes a second multimedia interface and a third multimedia interface, and the second interface unit includes a second USB interface and a third USB interface; wherein the second multimedia interface and the second USB interface are arranged in the display device; the third multimedia interface and the third USB interface are arranged in the system board; the second multimedia interface matches the third multimedia interface, and the second USB interface matches the third USB interface; Furthermore, the system board sends a display signal to the display device through the first interface unit, and the display device outputs a touch signal to the system board through the second interface unit, including: When the display device detects that the pluggable signal status pin of the adapter board is at a preset level, the display device switches the second multimedia interface to a display signal input interface and switches the second USB interface to a touch signal output interface; The system board establishes a connection with the second multimedia interface of the display device through the third multimedia interface and sends a display signal to the display device; The display device establishes a connection with the third USB interface of the system board through the second USB interface, and outputs a touch signal to the system board.

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