CN209992960U - Wireless touch display device - Google Patents
Wireless touch display device Download PDFInfo
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- CN209992960U CN209992960U CN201920822436.7U CN201920822436U CN209992960U CN 209992960 U CN209992960 U CN 209992960U CN 201920822436 U CN201920822436 U CN 201920822436U CN 209992960 U CN209992960 U CN 209992960U
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Abstract
The utility model provides a wireless touch display device, including the shell body, locate display screen and mainboard in the shell body, be equipped with main control unit on the mainboard, with main control unit electric connection's touch module, display driver module, connect display driver module's display control circuit, the Type C interface and the USB interface of universal serial bus that are connected with main control unit, main control unit receives the video signal of opposite terminal equipment through Type C interface, will the video signal sends to the display screen after converting into the video interface signal and shows; the touch control module and the USB interface are respectively connected with a main controller, the main controller converts touch control operation information received by the touch control module into a USB signal, the corresponding opposite terminal equipment is controlled through the USB interface according to the touch control operation information, the display control circuit further comprises a battery module connected with the main controller, and the display drive module is in wireless communication connection with the first wireless transceiver module and the second wireless transceiver module.
Description
Technical Field
The utility model relates to a display technical field, in particular to wireless touch-control display device.
Background
With the pursuit of design of portability, lightness, thinness, flatness and shortness of electronic equipment by people, the use of smart phones is more and more popular, in order to ensure the portability of the smart phones, the screen size of the current mainstream mobile phones is generally concentrated on 5-6 inches, and the performance and functions of the mobile phones can actually meet the requirements of office work and entertainment. However, due to the limitation of size, desktop office can not be realized conveniently by directly using a mobile phone, and users who have mobile office requirements are mainly accompanied by a notebook computer at present, so that inconvenience is still caused to users who have mobile office requirements. When the existing mobile phone is used for projecting a screen on a display device with a larger size, the adopted display device needs to connect the display driving module with the display screen through the solid flat cable, so that the connectability, firmness and space structure interference possibility of the solid flat cable and the display driving module need to be considered when the mobile phone is used, and the mobile phone is not concise and cannot conveniently move and work independently.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem that exists now, the utility model provides a wireless touch-control display device can conveniently be connected the screen of throwing that realizes the display with other electronic equipment such as cell-phones, and the display is convenient for remove and autonomous working, and the cell-phone of being convenient for realizes the desktop official working.
In order to achieve the above object, the embodiment of the present invention provides a technical solution that:
a wireless touch display device comprises an outer shell, a display screen and a mainboard, wherein the display screen and the mainboard are arranged in the outer shell, the mainboard is provided with a main controller, a touch module electrically connected with the main controller, a display driving module, a display control circuit connected with the display driving module, a Type C interface connected with the main controller and a Universal Serial Bus (USB) interface, and the main controller receives a video signal of opposite-end equipment through the Type C interface, converts the video signal into a video interface signal and then sends the video interface signal to the display screen for displaying; the touch control module with the USB interface respectively with main control unit connects, main control unit will touch control operation information that touch control module received converts the USB signal into, through the USB interface according to the corresponding control opposite terminal equipment of touch control operation information, wireless touch control display device still include with the battery module that main control unit connects, battery module be used for to the display screen the display drive module reaches display control circuit supplies power, be equipped with on the display screen with the first wireless transceiver module that display drive module connects, display control circuit is connected with the wireless transceiver module of second, display control circuit with through between the display drive module first wireless transceiver module with the wireless transceiver module wireless communication of second is connected.
The wireless touch display device further comprises a wireless communication module and a wireless energy receiving module, wherein the wireless energy receiving module is connected with the touch module, the main controller and the wireless communication module, and is used for receiving electromagnetic waves with specified frequency emitted by an electronic device main body, converting the electromagnetic waves into electric energy and supplying power to the display screen, the display driving module and the display control circuit.
The wireless communication module is further used for encoding the input signal received by the touch module, sending the encoded input signal to the electronic equipment main body for data processing, receiving the wireless control signal sent by the electronic equipment main body, decoding the wireless control signal and transmitting the decoded wireless control signal to the main controller.
The mainboard further comprises a charging module connected with the main controller and a Type C quick charging interface connected with the charging module, the charging module is connected with the battery module, and the Type C quick charging interface is used for connecting an external power supply.
The wireless touch display device further comprises a USB charging interface connected with the charging module, and the charging interface is used for being connected with an external power supply.
The touch display equipment further comprises a display screen control switch connected with the battery module, and the display screen control switch is used for controlling the on-off of a power supply between the battery module and the display screen.
The mainboard further comprises an HDMI (high-definition multimedia interface) connected with the main controller, and the main controller receives audio and video signals of opposite-end equipment through the HDMI.
The mainboard further comprises an earphone hole and a loudspeaker which are connected with the main controller.
The first wireless transceiver module and the second wireless transceiver module are both in communication connection in a WIFI mode.
The touch module comprises a capacitive touch panel chip, and the display screen is a TFT-LCD screen or an AMOLED screen.
The main board further comprises a discharging module connected with the main controller and a USB mobile phone interface connected with the discharging module, the discharging module comprises a switch tube and a driving control circuit, when external equipment is connected with the wireless touch display equipment through the USB mobile phone interface, the main controller outputs different PWM control signals to the driving control circuit to control the switch tube to turn off frequency according to the corresponding PWM control signals, and therefore the output voltage of the discharging module is adjusted.
The embodiment of the utility model provides a wireless touch-control display device includes following advantage at least:
1) the wireless touch display device is connected with the opposite terminal device through the Type C interface, receives the video signal of the opposite terminal device, converts the video signal and displays the video signal, so that the opposite terminal device can be projected to a display screen, and small-size opposite terminal devices are convenient, for example, mobile phones realize desktop office based on the screen projection display of the wireless touch display device;
2) the wireless touch display device supplies power to the display screen, the display driving module and the display control circuit through the battery module, so that the wireless touch display device can support screen projection from opposite-end equipment to the display screen when an external power line is not needed;
3) the display control circuit of the wireless touch display equipment is in communication connection with the display screen through the wireless transceiving module, and the display control circuit can send a control instruction in a wireless mode to realize display control on the display screen, so that the connectability, firmness and space structure interference possibility of an entity flat cable and the display driving module are not required to be considered, the whole is simpler, and the portable mobility and independent workability of the wireless touch display equipment are more convenient;
4) the touch module and the USB interface are respectively connected with the main controller, the main controller converts touch operation information received by the touch module into a USB signal, and the USB interface correspondingly controls the opposite terminal equipment according to the touch operation information, so that the touch display equipment can also realize touch operation on the opposite terminal equipment, is convenient for other opposite terminal equipment which is not in touch operation, and can realize a higher cost performance touch function based on the wireless touch display equipment if a desktop computer is used, and the operation experience of the opposite terminal equipment which does not support touch operation is improved.
Drawings
Fig. 1 is a schematic structural diagram of a wireless touch display device according to an embodiment of the present disclosure;
fig. 2 is an exploded view of the wireless touch display device shown in fig. 1;
fig. 3 is a schematic structural composition diagram of a wireless touch display device according to an embodiment of the present disclosure;
fig. 4 is a system composition schematic diagram of a wireless touch display device according to an embodiment of the present disclosure.
Detailed Description
The technical solution of the present application is further described in detail with reference to the drawings and specific embodiments of the specification.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of implementations of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An embodiment of the present application provides a wireless touch display device, please refer to fig. 1 and fig. 2 in combination, which is an optional schematic structural diagram of the wireless touch display device, and the wireless touch display device is a portable wireless touch display device, and includes an outer shell 10, and a display screen 20 and a main board 30 disposed in the outer shell 10. The outer shell 10 comprises a front frame 11 and a rear cover 13, the front frame 11 and the rear cover 13 are approximately equal in size, and an accommodating space for accommodating the display screen 20 and the main board 30 is formed between the rear cover 13 and the front frame 11 in a surrounding mode. The wireless touch display device can be arranged in a scene of a certain public environment and used by different users through a shared way, for example, the wireless touch display device is placed in a coffee shop, and the users use mobile phones to project screens to the wireless touch display device in the coffee shop according to actual requirements, so that teleconferencing, online games, desktop office work and the like can be realized by projecting the mobile phones to the touch display device; or the mobile phone can be placed in a library, and a user can be connected with the wireless touch display device by using the mobile phone of the user, and desktop office work and the like can be realized by projecting the mobile phone to the wireless touch display device. It can be understood that the placement environment of the wireless touch display device is not limited to the above described cafes and libraries, but also can be places such as meeting rooms, stations, or business rest rooms in airports, etc., so that users can conveniently conduct teleconferencing, online games, or desktop offices, etc. with the aid of the wireless touch display device through mobile phones according to temporary needs.
Referring to fig. 3 and 4, a main controller 33, a touch module 34 electrically connected to the main controller 33, a display driving module 36, a display control circuit 37 connected to the display driving module 36, a Type C interface 31 connected to the main controller 33, and a USB interface 32 are disposed on the main board 30. The main controller 33 receives a video signal of the peer device 40 through the TypeC interface 31, converts the video signal into a video interface signal, and sends the video interface signal to the display screen 20 for displaying; the touch module 34 and the USB interface 32 are respectively connected to the main controller 33, the main controller 33 converts the touch operation information received by the touch module 34 into a USB signal, and the USB interface correspondingly controls the peer device 40 according to the touch operation information. Wireless touch-control display device still include with the battery module 35 that main control unit 33 connects, battery module 35 be used for to display screen 20 display driver module 36 reaches display control circuit 37 supplies power, be equipped with on the display screen 20 with first wireless transceiver module 361 that display driver module 36 connects, display control circuit 37 is connected with second wireless transceiver module 371, display control circuit 37 with pass through between the display driver module 36 first wireless transceiver module 361 with second wireless transceiver module 371 wireless communication connects.
The video interface signal may be an embedded video interface ePD signal, an LVDS interface signal, or an MIPIDSI interface signal, where the LVDS interface is only used to transmit video data, and the MIPI DSI can not only transmit video data, but also transmit a control instruction. The LVDS interface mainly converts RGB TTL signals into LVDS signals for transmission according to an SPWG/JEIDA format, and the MIPI DSI interface transmits video data and control data required by screen control according to a specific handshake sequence and an instruction rule.
In the wireless touch display device provided in the above embodiment, the main controller 33 is connected to the peer device 40 through the Type C interface 31, receives the video signal of the peer device 40, and performs conversion and display, so that the peer device 40 can be projected onto the display screen 20, and the small-size peer device 40 is convenient for desktop office if the mobile phone displays the projected screen based on the wireless touch display device. Moreover, the wireless touch display device comprises the battery module 35, and the battery module 35 supplies power to the display screen 20, the display driving module 36 and the display control circuit 37, so that the wireless touch display device can support screen projection from the opposite terminal device 40 to the display screen 20 when an external power line is not needed, the external power line is not needed when screen projection work is realized on the display screen 20, and the wireless touch display device is overall simpler, convenient to move and independent to work.
In addition, the display control circuit 37 of the wireless touch display device is in communication connection with the display screen 20 through the first wireless transceiver module 361 and the second wireless transceiver module 371, and the display control circuit 37 can send a control command in a wireless manner to realize display control on the display screen 20, so that the possibility of connection, firmness and spatial structure interference between an entity flat cable and the display driving module 36 is not required to be considered, and the wireless touch display device is overall simpler and more convenient for the portable mobility and independent working performance of the wireless touch display device. Then, the touch module 34 and the USB interface 32 are connected to the main controller 33, the main controller 33 converts the touch operation information received by the touch module 34 into a USB signal, and the USB interface correspondingly controls the peer device 40 according to the touch operation information, so that the touch display device can also implement touch operation on the peer device 40, which is convenient for other peer devices 40 that are not operated in a touch manner, such as a desktop computer, to implement a higher cost-effective touch function based on the wireless touch display device, and improve the operation experience of the peer device 40 that does not support touch operation.
In some embodiments, the wireless touch display device further includes a wireless communication module 315 and a wireless energy receiving module 352, where the wireless energy receiving module 352 is connected to the touch module 34, the main controller 33 and the wireless communication module 315, and is configured to receive electromagnetic waves with a specified frequency emitted by an electronic device main body and convert the electromagnetic waves into electric energy for supplying power to the display screen 20, the display driving module 36 and the display control circuit 37. The electronic equipment main body is provided with a wireless energy transmitting module. The electronic device main body transmits the electromagnetic wave with the specific frequency to the wireless energy receiving module 352 of the wireless touch display device through the wireless energy transmitting module, so that the wireless touch display device converts the electromagnetic wave into electric energy after receiving the electromagnetic wave. It should be noted that, the wireless energy receiving module and the wireless energy transmitting module herein may use a known chip, such as a chip model of WP 8007/EC8010, or other chips capable of achieving the same function.
In some embodiments, the wireless communication module 315 is further configured to encode the input signal received by the touch module 34, send the encoded input signal to the electronic device main body for data processing, receive the wireless control signal sent by the electronic device main body, decode the wireless control signal, and transmit the decoded wireless control signal to the main controller. Here, the wireless communication module 315 may be one of an infrared communication module, a bluetooth communication module, a Zwave communication module, and a Zigbee communication module.
In some embodiments, the main board 30 further includes a charging module 38 connected to the main controller 33 and a Type C quick charging interface 311 connected to the charging module 38, the charging module 38 is connected to the battery module 35, and the Type C quick charging interface 311 is used for connecting an external power supply. The wireless touch display device can be connected with an external power supply (not shown) through the Type C quick charging interface 311, and when the wireless touch display device is connected with the external power supply through the Type C quick charging interface 311, the battery module 35 is charged through the external power supply. It should be noted that, the charging module 38 may also be connected to a power adapter through the Type C quick charging interface 311, and is connected to an external power supply through the power adapter to obtain electric energy, wherein the Type C quick charging interface 311 may support a charging current matched with the battery module 35, so as to realize quick charging of the battery module 35. Optionally, the wireless touch display device further includes a power interface 312, where the power interface 312 is used for connecting with an external power source, and when the power interface 312 is not connected with the external power source, the wireless touch display device may supply power through the battery module 35; when the power interface 312 is connected to an external power source, the wireless touch display device is powered by the external power source. It should be further noted that, when the power interface 312 is connected to an external power source, the external power source may also be connected to the battery module 35 through the charging module 38, and the main controller 33 may control the charging module 38 to charge the battery module 35 according to the current electric quantity of the battery module 35.
In an optional embodiment, the wireless touch display device further includes a USB charging interface 321 connected to the charging module 38, where the USB charging interface 321 is used to connect to an external power source. The wireless touch display device can be connected with an external power supply through the USB charging interface 321, and when the wireless touch display device is connected with the external power supply through the USB charging interface 321, the battery module 35 is charged through the external power supply. The embodiment of the utility model provides an in, the interface that charges that provides Type C fast interface 311 and USB charge these two kinds of types of interface 321 simultaneously is used for being connected with external power source, and the homoenergetic can realize charging to battery module 35 to the charging of battery module 35 of wireless touch-control display device under can the different applied scene of adaptability. As an alternative embodiment, the power interface 312 and the USB charging interface 321 may be set to be the same, that is, only one of the two interfaces may be reserved, and when the main controller 33 is connected to an external power source, the main controller 33 may control the charging module 38 to charge the battery module 35 according to the current electric quantity of the battery module 35, and at the same time, the main controller is further configured to supply power to the wireless touch display device.
In some embodiments, the touch display device further includes a display screen control switch 21 connected to the battery module 35, where the display screen control switch 21 is configured to control on/off of a power supply between the battery module 35 and the display screen 20. The size of the display screen 20 is primarily suitable for desktop office operations, such as but not limited to 15.6 inches. The display screen 20 is usually a high-resolution touch display screen 20, such as a maximum 4k resolution. The display screen control switch 21 may include a mechanical switch button and a switch electronic device linked with the mechanical switch button, the switch electronic device is connected between the battery module 35 and the power supply port of the display screen 20, and the mechanical switch button is manually switched by a user to control the switch electronic device to be opened or closed, so as to correspondingly control the connection or disconnection between the battery module 35 and the power supply port of the display screen 20. In the using process of the wireless touch display device, the display screen 20 is lighted most power-consumptively, and in order to ensure the continuous flight time of the electric energy of the battery module 35, the display screen control switch 21 for independently controlling the power on-off of the display screen 20 is arranged, so that the using time of the wireless touch display device can be prolonged, and the waste of the electric energy is avoided.
In some embodiments, the main board 30 further includes an HDMI interface 39 connected to the main controller 33, and the main controller 33 receives the audio/video signal of the peer device 40 through the HDMI interface 39. This HDMI interface 39 can set up in the rear side of wireless touch display device, through setting up HDMI interface 39, can increase the applicable scene of wireless touch display device.
In some embodiments, the wireless touch display device further includes a headphone jack and a speaker connected to the main controller 33. The earphone hole and the speaker may be disposed at one side of the outer case 10, and when the earphone is inserted into the earphone hole, the speaker is automatically cut off; otherwise, the speaker acquires the sound signal sent by the main controller 33 to realize sound emission.
In some embodiments, the first transceiver module 361 and the second transceiver module 371 both establish a communication connection in a WIFI manner. The WIFI mode is used as the communication connection mode between the first wireless transceiver module 361 and the second wireless transceiver module 371, so that effective transceiving of control instructions between the display control circuit 37 of the display screen 20 and the display screen 20 can be effectively ensured under the WIFI environment, transceiving of signals is not required to be completed between the display screen 20 and the display control circuit 37 based on connection of a solid flat cable, the problems of connection faults and overall unclean line caused when the display control circuit 37 is connected with the display screen 20 through the solid flat cable are avoided, and the convenience is brought to the portable mobility and the independent workability of the wireless touch display device.
In some embodiments, the touch module 34 includes a capacitive touch pad chip, and the display screen 20 is a TFT-LCD screen or an AMOLED screen. The touch module 34 can be connected to the USB interface through a universal serial bus HUB (USB HUB) and the main controller 33, when the wireless touch display device is connected to an external electronic device through the bus USB interface 32, the touch module 34 can detect touch operation information of a user on the display screen 20, for example, operation information of clicking a virtual key in the display interface of the display screen 20, operation information of selecting and sliding in the display interface of the display screen 20, and the like, the main controller 33 and the USB HUB convert the touch operation information into a USB signal and then send the USB signal to the bus USB interface 32, and the external electronic device is controlled through the bus USB interface 32 according to the USB signal corresponding to the touch operation information.
In some embodiments, the main board 30 further includes a discharging module 381 connected to the main controller 33 and a USB mobile phone interface 41 connected to the discharging module 381, where the discharging module 381 includes a switch tube and a driving control circuit, and when an external device is connected to the wireless touch display device through the USB mobile phone interface 41, the main controller 33 outputs different PWM control signals to the driving control circuit to control the switch tube to turn off the frequency according to the corresponding PWM control signal, so as to adjust the output voltage of the discharging module 381. In this embodiment, the wireless touch display device controls the switch tube to be turned on when the PWM signal is at a high level and to be turned off when the PWM signal is at a low level through the PWM control signal and the driving control circuit, and outputs the output voltage of a corresponding magnitude by adjusting the on-off frequency of the switch tube, so that the wireless touch display device can charge the opposite device 40 with different working voltages. The switch tube can be a triode, a field effect tube and other switch elements.
The USB mobile phone interface 41 may be a USB 3.0 interface, and the USB 3.0 interface supports a PD2.0 fast charging protocol. Through the USB 3.0 interface, it can be used to output USB signals and perform fast charging on external devices plugged into the USB interface 40. Further, the USB 3.0 interface may be further configured to connect to an external storage device and receive data transmission from the external storage device. The external storage device may refer to any memory capable of being connected with the wireless touch display device through the USB interface, such as a USB flash drive or other removable disk.
In one embodiment, the display driving module 36 may include a conversion chip for converting the external video interface DP signal into an eDP signal. The conversion chip receives DP signals output by external opposite terminal equipment 40 connected with the wireless touch display equipment through an external video interface, outputs eDP signals to the display control circuit 37 through the embedded video interface, and controls the display screen 20 to display through the display control circuit 37, so that the external opposite terminal equipment 40 can be projected to the display screen 20. In an alternative embodiment, the conversion chip may be of the NCS8801S chip type.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A wireless touch display device comprises an outer shell, a display screen arranged in the outer shell and a mainboard, and is characterized in that the mainboard is provided with a main controller, a touch module electrically connected with the main controller, a display driving module, a display control circuit connected with the display driving module, a Type C interface connected with the main controller and a Universal Serial Bus (USB) interface,
the main controller receives a video signal of opposite-end equipment through the Type C interface, converts the video signal into a video interface signal and then sends the video interface signal to a display screen for displaying; the touch module and the USB interface are respectively connected with the main controller, the main controller converts touch operation information received by the touch module into a USB signal, and the USB interface correspondingly controls opposite-end equipment according to the touch operation information,
the wireless touch display equipment further comprises a battery module connected with the main controller, the battery module is used for supplying power to the display screen, the display driving module and the display control circuit, a first wireless receiving and transmitting module connected with the display driving module is arranged on the display screen, the display control circuit is connected with a second wireless receiving and transmitting module, and the display control circuit is in wireless communication connection with the display driving module through the first wireless receiving and transmitting module and the second wireless receiving and transmitting module.
2. The wireless touch display device of claim 1, further comprising a wireless communication module and a wireless energy receiving module, wherein the wireless energy receiving module is connected to the touch module, the main controller and the wireless communication module, and is configured to receive electromagnetic waves of a specified frequency emitted by an electronic device main body and convert the electromagnetic waves into electric energy for supplying power to the display screen, the display driving module and the display control circuit.
3. The wireless touch display device as claimed in claim 2, wherein the wireless communication module is further configured to encode an input signal received by the touch module, send the encoded input signal to the electronic device main body for data processing, receive a wireless control signal sent by the electronic device main body, decode the wireless control signal, and transmit the decoded wireless control signal to the main controller.
4. The wireless touch display device of claim 1, wherein the motherboard further comprises a charging module connected to the main controller and a Type C quick charging interface connected to the charging module, the charging module is connected to the battery module, and the Type C quick charging interface is used for connecting an external power supply.
5. The wireless touch display device as recited in claim 4, further comprising a USB charging interface connected to the charging module, wherein the charging interface is configured to connect to an external power source.
6. The wireless touch display device of claim 1, further comprising a display screen control switch connected to the battery module, the display screen control switch configured to control on/off of a power supply between the battery module and the display screen.
7. The wireless touch display device of claim 1, wherein the motherboard further comprises an HDMI interface connected to the main controller, and the main controller receives audio and video signals of an opposite device through the HDMI interface.
8. The wireless touch display device of claim 1, wherein the first wireless transceiver module and the second wireless transceiver module are communicatively connected in a WIFI manner.
9. The wireless touch display device of claim 1, wherein the touch module comprises a capacitive touchpad chip, and the display screen is a TFT-LCD screen or an AMOLED screen.
10. The wireless touch display device of claim 1, wherein the motherboard further comprises a discharge module connected to the main controller and a USB mobile phone interface connected to the discharge module, the discharge module comprises a switch tube and a driving control circuit, and when an external device is connected to the wireless touch display device through the USB mobile phone interface, the main controller outputs different PWM control signals to the driving control circuit to control the switch tube to turn off the frequency according to the corresponding PWM control signal, so as to adjust the output voltage of the discharge module.
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| CN201920822436.7U CN209992960U (en) | 2019-05-31 | 2019-05-31 | Wireless touch display device |
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| CN201920822436.7U CN209992960U (en) | 2019-05-31 | 2019-05-31 | Wireless touch display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111885412A (en) * | 2020-07-06 | 2020-11-03 | 深圳市宝泽科技有限公司 | HDMI signal screen transmission method and wireless screen transmission device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111885412A (en) * | 2020-07-06 | 2020-11-03 | 深圳市宝泽科技有限公司 | HDMI signal screen transmission method and wireless screen transmission device |
| CN111885412B (en) * | 2020-07-06 | 2022-08-09 | 深圳市宝泽科技有限公司 | HDMI signal screen transmission method and wireless screen transmission device |
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