TW202238401A - Electronic system and display device - Google Patents

Abstract

An electronic system is provided, which includes a host device and a display device. The host device includes a first signal conversion circuit and a first signal transmission circuit. The first signal conversion circuit is utilized for converting signals associated with the host device into a first universal serial bus signal. The display device includes a display panel, a second signal conversion circuit and a second signal transmission circuit. The second signal transmission circuit is utilized for receiving the first universal serial bus signal. The second signal conversion circuit is coupled to the second signal transmission circuit for converting the first universal serial bus signal into the signals associated with the host device. The first universal serial bus signal conforms to universal serial bus 4.0 or above version standard specification

Description

Electronic system and display device

The invention relates to an electronic system and a display device, in particular to an electronic system and a display device which can simplify wiring and facilitate automatic production.

With the rapid development of display technology, display devices, such as Liquid Crystal Display (LCD), have been widely used in various electronic products, such as notebook computers, desktop computers, mobile communication devices, televisions, and so on. Generally speaking, after the image source is connected to the display device, the image source can provide the image signal to the display device for display.

Please refer to FIG. 1 , which is a schematic diagram of a conventional display device 1 . The display device 1 includes a display panel 102 , a camera module 104 , a cable assembly 106 and a cable bracket 108 . During product manufacture, a plurality of related signal cables are usually organized into a cable assembly 106, and the cable assembly 106 is arranged and fixed on the cable bracket 108, and then the cable assembly 106 is passed through the base of the display device 1 Components (such as the base shaft), so that the display device 1 and external devices can carry out related signal transmission. For example, the display panel 102 transmits an image signal of an embedded Display Port (eDP) through the signal cable 110 . The embedded display interface signal uses signal cables with four lanes to transmit data, so the signal cable 110 is usually a signal cable with 40 to 50 pins. In addition, the camera module 104 includes a camera, a microphone and a light sensor. The camera module 104 transmits a camera image signal, a microphone signal and a sensing signal of an internal IC bus (Inter-Integrated Circuit, I ² C) through the signal cable 112 . Therefore, the signal cable 112 is generally a signal cable with more than 20 pins. In other words, in order to connect with external devices for related signal transmission, the display device 1 needs to organize and fix a large number of signal cables on the cable bracket 108 and pass the cable assembly 106 through the base shaft of the display device 1, so that, It will cause the problem that the wiring is not easy, so that a large amount of manual work time is required during production, and it is also not conducive to the construction of an automated production line. In view of this, there is a need for improvement in the prior art.

In order to solve the above-mentioned problems, the present invention provides an electronic system and a display device that can simplify wiring and facilitate automatic production, so as to solve the above-mentioned problems.

The present invention provides an electronic system, comprising: a host device, including: a first signal conversion circuit for converting signals related to the host device into a first universal serial bus signal; and a first signal transmission A circuit, coupled to the first signal conversion circuit, used to transmit the first universal serial bus signal; and a display device, including: a display panel; a second signal transmission circuit, used to receive the first signal The first general-purpose serial bus signal transmitted by the transmission circuit or the second general-purpose serial bus signal related to the display device is transmitted to the first signal transmission circuit; and a second signal conversion circuit is coupled to the The second signal transmission circuit is used to convert the first universal serial bus signal into a signal related to the host device or convert a signal related to the display device into the second universal serial bus signal; wherein the first universal serial bus signal A UBS signal and the second UBS signal comply with the standard specification of UBS version 4.0 or above.

The present invention also provides a display device, including: a display panel; a signal conversion circuit, used to convert a first universal serial bus signal related to a host device into a signal related to the host device or convert a signal related to the host device The signal related to the display device is converted into a second universal serial bus signal; and a signal transmission circuit, coupled to the signal conversion circuit, is used to receive the first universal serial bus signal transmitted by the host device or The second universal serial bus signal is transmitted to the host device; wherein the first universal serial bus signal and the second universal serial bus signal conform to the standard specification of universal serial bus version 4.0 or above.

Certain terms are used in the specification and subsequent claims to refer to particular elements. It should be understood by those skilled in the art that manufacturers may refer to the same element by different terms. This description and subsequent patent applications do not use the difference in name as the way to distinguish components, but the difference in function of the components as the basis for distinction. "Include" or "comprising" mentioned in the entire specification and subsequent claims is an open term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" herein includes any direct and indirect means of electrical connection. Therefore, if it is described that a first device is coupled to a second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

Please refer to FIG. 2, which is a schematic diagram of an electronic system 2 according to an embodiment of the present invention. The electronic system 2 includes a host device 20 and a display device 30 . The host device 20 includes a processing circuit 202 , a signal conversion circuit 204 and a signal transmission circuit 206 . The host device 20 can be a desktop computer, a server computer, a notebook computer, a storage device, a mobile communication device, or an embedded system product, but not limited thereto. The processing circuit 202 can be a central processing unit (Central Processing Unit, CPU), a microprocessor (microprocessor), a digital signal processor (Digital Signal Processor, DSP), or other similar devices, or these devices combinations, but not limited to. The signal conversion circuit 204 is configured to convert the signal related to the host device 20 into a universal serial bus (Universal Serial Bus, USB) signal S1 or convert a universal serial bus signal S2 from the display device 30 into a USB Signals related to the display device 30. Signals related to the host device 20 may include signals generated or stored by associated components of the host device 20 . For example, the control signal generated by the processing circuit 202 and the image frame signal output by the processing circuit 202 . The UBS signals S1 and S2 may be signals conforming to the standard specification of UBS version 4.0 or above. The transmission signal conversion circuit 204 can be disposed on a UBS wiring board of the host device 20 . The signal transmission circuit 206 is coupled to the signal conversion circuit 204 and is configured to transmit the UBS signal S1 to the display device 30 or receive the UBS signal S2 from the display device 30 .

The display device 30 includes a display panel 302 , a camera module 304 , a signal conversion circuit 306 and a signal transmission circuit 308 . The display panel 302 is used for displaying video frame signals. The display panel 202 may be a liquid crystal display (Liquid crystal Display, LCD) panel or an organic light emitting diode display (Organic Light Emitting Diode Display, OLED) panel, but not limited thereto. In addition, the display device 20 further includes a display driving circuit (not shown in the figure) for controlling the display panel 202 to display images. The signal conversion circuit 306 is configured to convert the signal related to the display device 30 into a UBS signal S2 or convert the UBS signal S1 from the host device 20 into a signal related to the host device 20 . Signals related to the display device 30 may include signals generated or stored by related components of the display device 30 . For example, the signal generated or stored by the display panel 202 or the camera module 304 . The transmission signal conversion circuit 306 can be disposed on a UBS wiring board of the display device 30 . The signal transmission circuit 308 is coupled to the signal conversion circuit 306 and is configured to transmit the general sequence bus signal S2 converted by the signal conversion circuit 306 to the host device 20 or receive the general sequence signal S2 transmitted by the host device 20 Bus signal S1. The UBS signals S1 and S2 may be signals conforming to the standard specification of UBS version 4.0 or above.

In one embodiment, when the signal conversion circuit 204 converts the signal related to the host device 20 into the common serial bus signal S1. The signal transmission circuit 206 transmits the UBS signal S1 to the signal transmission circuit 308 of the display device 30 . Next, the signal transmission circuit 308 provides the GS bus signal S1 to the signal conversion circuit 306 . The signal conversion circuit 306 converts the GSB signal S1 into signals related to the host device 20 to provide related components of the display device 30 for operation. In one embodiment, when the signal conversion circuit 306 converts the signal related to the display device 30 into the common serial bus signal S2. The signal transmission circuit 308 transmits the UBS signal S2 to the signal transmission circuit 206 of the host device 20 . The signal transmission circuit 206 then provides the UBS signal S2 to the signal conversion circuit 204 . The signal conversion circuit 204 can convert the GSB signal S2 into a signal related to the display device 30 to provide related components of the host device 20 for operation. Since the display device 30 utilizes the signal conversion circuit 306 to convert the universal serial bus signal S2 of a single specification (conforming to universal serial bus version 4.0 or above), and then uses the signal transmission circuit 308 to transmit the universal serial bus signal S2 to The host device 20 or other devices. Moreover, the signal transmission circuit 308 and the signal conversion circuit 306 are used to receive and convert the universal serial bus signal S1 of a single standard, and then convert it into a signal related to the host device 20 for use. In this way, the display device 30 will not need Using excessive cables to transmit or receive transmission signals can simplify cable management and facilitate automated assembly.

Please refer to FIG. 3 , which is a schematic diagram of an embodiment of the electronic system 2 in FIG. 2 . The signal transmission circuit 206 includes a wireless communication circuit 2062 . The signal transmission circuit 308 includes a wireless communication circuit 3082 . The camera module 304 includes a camera 3042 , a microphone 3044 and a light sensor 3046 . The wireless communication circuit 2062 can transmit the universal serial bus signal S1 converted by the signal conversion circuit 204 to the wireless communication circuit 3082 of the display device 30 through wireless transmission. The wireless communication circuit 2062 can also receive the universal serial bus signal S2 sent by the wireless communication circuit 3082 . The wireless communication circuit 3082 can transmit the universal serial bus signal S2 converted by the signal conversion circuit 306 to the wireless communication circuit 2062 of the host device 20 through wireless transmission. The wireless communication circuit 3082 can also receive the universal serial bus signal S1 sent by the wireless communication circuit 2062 . The wireless communication circuit 2062 and the wireless communication circuit 3082 can comply with the fifth generation mobile communication network (5th Generation mobile communication, 5G), the fifth generation mobile communication new radio (5th Generation New Radio, 5G NR), the long term evolution (Long Term Evolution, LTE), the third generation (3G) mobile communication network, the second generation (2G) mobile communication network, Global System for Mobile (GSM) system, WiFi system, wireless LAN (wireless LAN, WLAN) ), Bluetooth (Bluetooth) and other wireless communication technology standard specifications. The wireless communication circuit 2062 further includes a plurality of antennas ANT_2062. The wireless communication circuit 3082 further includes a plurality of antennas ANT_3082. The wireless communication circuit 2062 can transmit and receive signals through the antenna ANT_2062 , and the wireless communication circuit 3082 can transmit and receive signals through the antenna ANT_3082 . The antennas ANT_2062 and ANT_3082 may be multiple-input multiple-output (Multi-input Multi-output, MIMO) antennas. For example, the wireless communication circuit 2062 and the wireless communication circuit 3082 can be 5G millimeter wave (mmWave) wireless communication circuits, and the antennas ANT_2062 and ANT_3082 can be 5G MIMO antennas.

In one embodiment, when the host device 20 intends to provide an image frame signal SA1 to the display device 30 for display by the display panel 302 . As shown in FIG. 3 , the processing circuit 202 is configured to generate the image frame signal SA1 . For example, the image frame signal SA1 may be an image frame signal of an embedded display interface. The signal converting circuit 204 converts the image frame signal SA1 into a common serial bus signal S1. The UBS signal S1 can be a signal conforming to the standard specification of UBS version 4.0 or above. Next, the wireless communication circuit 2062 converts the GP bus signal S1 into a wireless transmission signal W1 and transmits the wireless transmission signal W1 through the antenna ANT_2062 in a wireless transmission manner. The wireless transmission signal W1 is transmitted to the wireless communication circuit 3082 of the display device 30 through wireless transmission. For example, the wireless communication circuits 2062 and 3082 can be 5G millimeter wave wireless communication circuits, and the wireless communication circuits 2062 and 3082 can use Network Slicing technology to convert signals. The antennas ANT_2062 and ANT_3082 can be 5G MIMO antennas. After the wireless communication circuit 2062 converts the GP bus signal S1 into a wireless transmission signal W1, the wireless transmission signal W1 is transmitted through the antenna ANT_2062. After the antenna ANT_3082 of the wireless communication circuit 3082 of the display device 30 receives the wireless transmission signal W1, the wireless communication circuit 3082 converts the wireless transmission signal W1 into a universal serial bus signal S1 to provide to the signal conversion circuit 306 . The signal conversion circuit 306 converts the UBS signal S1 into an image signal SA1 and provides it to the display panel 302 . The display panel 302 receives and displays the image signal SA1, so that the display device 30 receives the image signal SA1 provided by the host device 20 through the wireless communication circuit 3082, without using dozens of signal cables to communicate with The host device 2 is connected to transmit signals.

In one embodiment, the display panel 302 can generate an identification signal SB1. For example, the identification signal SB1 includes extended display identification data (Extended Display Identification Data, EDID) of the display device 30 . The identification signal SB1 can be a High Definition Multimedia Interface (HDMI) transmission interface signal or a Thunderbolt (Thunderbolt) transmission interface signal. The display panel 302 can be a touch panel, and the display panel 302 can detect a touch operation to generate a touch detection signal SB2. For example, the display panel 302 can use self-capacitance or mutual-capacitance detection technology to detect the operation of the touch point, but not limited thereto. The touch detection signal SB2 can be an internal integrated circuit bus signal or an embedded display interface signal. The camera 3042 is configured to generate a camera image signal SC1. The microphone 3044 is configured to collect the sound of the current environment to generate an audio signal SC2. The light sensor 3046 is configured to sense and generate a light sensing signal SC3. The light sensor 3046 can be an ambient light sensor (Ambient Light Sensor, ALS), but not limited thereto. For example, the camera image signal SC1 and the photo-sensing signal SC3 can be internal integrated circuit bus signals. The audio signal SC2 can be a USB 2.0 signal.

As shown in FIG. 3 , the signals related to the display device 30 include an identification signal SB1 , a touch detection signal SB2 , a camera image signal SC1 , an audio signal SC2 , and a light sensing signal SC3 . According to system requirements, the signal conversion circuit 306 can convert at least one of the signals related to the display device 30 into a corresponding general serial bus signal S2. For example, if the display device 30 needs to provide the identification signal SB1, the touch detection signal SB2, the camera image signal SC1, the audio signal SC2 and the light sensing signal SC3 to the host device 20, the signal conversion circuit 306 can provide the identification signal SB1 , the touch detection signal SB2 , the camera image signal SC1 , the audio signal SC2 and the light sensing signal SC3 are converted into a common serial bus signal S2 . The UBS signal S2 can be a signal conforming to the standard specification of UBS version 4.0 or above. Next, the wireless communication circuit 3082 converts the GPB signal S2 into a wireless transmission signal W2, and transmits the wireless transmission signal W2 through the antenna ANT_3082 in a wireless transmission manner. The wireless transmission signal W2 is transmitted to the wireless communication circuit 2062 of the host device 2 through wireless transmission. After the antenna ANT_2062 of the wireless communication circuit 2062 of the host device 2 receives the wireless transmission signal W2, the wireless communication circuit 2062 converts the wireless transmission signal W2 into a universal serial bus signal S2 to provide to the signal conversion circuit 204 . The signal conversion circuit 204 converts the UBS signal S2 into an identification signal SB1, a touch detection signal SB2, a camera image signal SC1, an audio signal SC2, and a light sensing signal SC3, and provides them to the processing circuit 202 for the processing circuit 202 Subsequent use. In other words, the display device 30 can transmit the relevant signal required by the host device 20 through the wireless communication circuit 3082 or receive the signal of the host device 20 through wireless transmission without using too many signal cables to It is connected to the host device, so the cost of related wires can be saved, and the cable management can be effectively simplified to facilitate the establishment of an automated production line.

Please refer to FIG. 4 , which is a schematic diagram of another embodiment of the electronic system 2 in FIG. 2 . It is worth noting that since the elements with the same names in the electronic system 2 in Figure 3 and Figure 4 have similar operation methods and functions, for the sake of brevity in the description, detailed descriptions are omitted here. The connection relationship is shown in Figure 4, and will not be repeated here. Compared with FIG. 3 , the signal transmission circuit 206 includes a data transmission interface circuit 2064 . The signal transmission circuit 308 includes a data transmission interface circuit 3084 . The data transmission interface circuits 2064 and 3084 can be USB 4.0 or above compatible USB interface circuits, which can support the standard specification of USB 4.0 or above. The signal cable 40 is coupled between the data transmission interface circuit 2064 of the host device 20 and the data transmission interface circuit 3084 of the display device 30 , and the host device 10 can be connected to the slave device 30 through the signal cable 40 . The signal cable 40 can be a universal serial bus 4.0 or above transmission interface connecting components.

In one embodiment, when the host device 20 intends to provide an image frame signal SA1 to the display device 30 for display by the display panel 302 . As shown in FIG. 4, the processing circuit 202 is configured to generate the image frame signal SA1. For example, the image frame signal SA1 may be an image frame signal of an embedded display interface. The signal converting circuit 204 converts the image frame signal SA1 into a common serial bus signal S1. The UBS signal S1 can be a signal conforming to the standard specification of UBS version 4.0 or above. The data transmission interface circuit 2064 transmits the USB signal S1 to the data transmission interface circuit 3084 of the display device 30 through the signal cable 40 . The data transmission interface circuit 3084 receives the UBS signal S1 and provides it to the signal conversion circuit 306 . The signal conversion circuit 306 converts the UBS signal S1 into an image signal SA1 and provides it to the display panel 302 . The display panel 302 receives and displays the image frame signal SA1 , so that the display device 30 receives the image frame signal SA1 provided by the host device 20 through the data transmission interface circuit 3084 .

As shown in Figure 4, the signals related to the display device 30 include the identification signal SB1 of the high-definition multimedia interface, the touch detection signal SB2 of the internal integrated circuit bus, the camera image signal SC1, the audio signal SC2 and the light sensor. Test signal SC3. If the display device 30 needs to provide the identification signal SB1 , the touch detection signal SB2 , the camera image signal SC1 , the audio signal SC2 and the light sensing signal SC3 to the host device 20 . The signal conversion circuit 306 can convert the identification signal SB1 , the touch detection signal SB2 , the camera image signal SC1 , the audio signal SC2 and the light sensing signal SC3 into the common serial bus signal S2 . Next, the data transmission interface circuit 3084 transmits the UBS signal S2 to the data transmission interface circuit 2064 through the signal cable 40 . Then, the signal conversion circuit 204 of the host device 20 converts the general serial bus signal S2 into the identification signal SB1 of the high-definition multimedia interface, the touch detection signal SB2 of the internal integrated circuit bus, and the internal integrated circuit bus. The camera image signal SC1, the audio signal SC2 of the internal integrated circuit bus, and the light sensing signal SC3 of the internal integrated circuit bus are provided to the processing circuit 202 for subsequent use. In other words, the display device 30 can transmit or receive signals with the host device 20 through the data transmission interface circuit 3084 using the USB 4.0 or above transmission mode. Since the data transmission interface circuit 3084 uses the UBS 4.0 or above transmission interface, and the UBS 4.0 transmission interface only needs 8 pins of signal cables, which can greatly reduce the number of cables passing through the display device base hinge. Compared with traditional display devices that often require dozens of pins of signal cables to connect to the host device, the display device 30 of this case does not need to use too many signal cables to connect to the host device 20. During the production process of the device 30, it will be convenient to manage the wires and facilitate the production assembly.

To sum up, the embodiment of the present invention utilizes the signal conversion circuit 306 to convert the universal serial bus signal of a single specification (conforming to universal serial bus version 4.0 or above), and utilizes the signal transmission circuit to convert the universal serial bus signal to Send and receive signals through wireless transmission or a transmission interface conforming to Universal Serial Bus 4.0 or above. In this way, the display device 30 of the embodiment of the present invention does not need to use too many cables to transmit and receive transmission signals, thus effectively simplifying cable management operations, saving cable costs, and facilitating automated production and assembly. The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

1,30: display device 102,302: display panel 104,304: camera modules 106: cable assembly 108: cable bracket 110,112,40: signal cable 2: Electronic system 20: Host device 202,: processing circuit 204,306: Signal conversion circuit 206,308: Signal transmission circuit 2062, 3082: wireless communication circuit 2064, 3084: data transmission interface circuit 3042: camera 3044: Microphone 3046: light sensor ANT_2062, ANT_3082: Antenna S1, S2: General serial bus signal SA1: video screen signal SB1: Identification signal SB2: Touch detection signal SC1: Camera image signal SC2: audio signal SC3: light sensing signal W1, W2: wireless transmission signal

FIG. 1 is a schematic diagram of a conventional display device. Fig. 2 is a schematic diagram of the electronic system of the embodiment of the present invention. Fig. 3 and Fig. 4 are schematic diagrams of variations of the electronic system in Fig. 2.

2: Electronic system

20: Host device

202: processing circuit

204,306: Signal conversion circuit

206,308: Signal transmission circuit

30: Display device

302: display panel

304: Camera module

S1, S2: General serial bus signal

Claims (15)

An electronic system comprising: A host device, including: a first signal conversion circuit for converting signals related to the host device into a first common serial bus signal; and a first signal transmission circuit, coupled to the first signal conversion circuit, for transmitting the first universal serial bus signal; and A display device comprising: a display panel; A second signal transmission circuit, used to receive the first universal serial bus signal transmitted by the first signal transmission circuit or transmit a second universal serial bus signal related to the display device to the first signal transmission circuits; and A second signal conversion circuit, coupled to the second signal transmission circuit, for converting the first universal serial bus signal into a signal related to the host device or converting a signal related to the display device into the signal second common sequence bus signal; Wherein the first universal serial bus signal and the second universal serial bus signal conform to the standard specification of universal serial bus version 4.0 or above. The electronic system described in item 1 of the scope of the patent application, wherein the first signal transmission circuit includes a first wireless communication circuit, and the first wireless communication circuit transmits the first universal serial bus signal to the The display device either receives the second universal serial bus signal transmitted by the second signal transmission circuit, the second signal transmission circuit includes a second wireless communication circuit, and the second wireless communication circuit receives The first universal serial bus signal transmitted by the wireless communication circuit or the second universal serial bus signal is transmitted to the first wireless communication circuit through the wireless transmission method. The electronic system described in item 2 of the scope of the patent application, wherein the first wireless communication circuit includes a first antenna, the second wireless communication circuit includes a second antenna, and the first wireless communication circuit uses the first The general serial bus signal is converted into a first wireless transmission signal, the first wireless transmission signal is sent to the second antenna through the first antenna, and the second wireless communication circuit receives the second antenna The first wireless transmission signal is converted into the first universal serial bus signal, the second wireless communication circuit converts the second universal serial bus signal into a second wireless transmission signal, and the second wireless transmission signal passes through the second day The first wireless communication circuit converts the second wireless transmission signal received by the first antenna into the second universal serial bus signal. The electronic system described in item 3 of the scope of patent application, wherein the first wireless communication circuit and the second wireless communication circuit are communication circuits of the fifth generation mobile communication network, and the first antenna and the second antenna It is an antenna for the MIMO system of the fifth generation mobile communication. The electronic system described in item 1 of the scope of the patent application, wherein the first signal transmission circuit includes a first transmission interface circuit, and the first transmission interface circuit is coupled to the display device to transmit the first universal serial bus signal To the display device or receive the second universal serial bus signal transmitted by the display device, the second signal transmission circuit includes a second transmission interface circuit, the second transmission interface circuit receives The first universal serial bus signal transmitted by the circuit or the second universal serial bus signal is transmitted to the first transmission interface circuit, wherein the first transmission interface circuit and the second transmission interface circuit conform to the universal serial bus The standard specification of version 4.0 or above. The electronic system described in item 1 of the scope of patent application, wherein the first signal transmission circuit receives the second universal serial bus signal transmitted by the second signal transmission circuit, and the first signal conversion circuit converts the second universal serial bus signal Two UBS signals are converted into signals related to the display device. The electronic system as described in item 1 of the scope of the patent application, wherein the signal related to the host device includes an image frame signal, and the image frame signal is converted into the first universal serial bus signal by the first signal conversion circuit, The second signal conversion circuit converts the image frame signal according to the first common serial bus signal, and the display panel displays the image frame signal. The electronic system described in item 1 of the scope of patent application, wherein the display panel generates an identification signal and a touch detection signal, and the display device further includes a camera for generating a camera image signal, for generating an audio signal At least one of a microphone for sensing a light sensing signal, a light sensor for sensing a light sensing signal, and signals related to the display device include the identification signal, the touch detection signal, the camera image signal, At least one of the audio signal and the light sensing signal. A display device comprising: a display panel; A signal conversion circuit for converting a first universal serial bus signal related to a host device into a signal related to the host device or converting a signal related to the display device into a second universal serial bus signal; and a signal transmission circuit, coupled to the signal conversion circuit, for receiving the first universal serial bus signal transmitted by the host device or transmitting the second universal serial bus signal to the host device; Wherein the first universal serial bus signal and the second universal serial bus signal conform to the standard specification of universal serial bus version 4.0 or above. The display device as described in item 9 of the scope of the patent application, wherein the signal transmission circuit includes a wireless communication circuit, and the wireless communication circuit transmits the second universal serial bus signal to the host device or the host device through a wireless transmission method The first USB signal sent by the host device is received. The display device as described in item 10 of the scope of the patent application, wherein the wireless communication circuit includes an antenna, and the wireless communication circuit converts the second universal serial bus signal into a wireless transmission signal, and the wireless transmission signal is sent to the The host-side device. The display device described in item 11 of the scope of patent application, wherein the wireless communication circuit is a communication circuit of a fifth generation mobile communication network, and the antenna is a fifth generation mobile communication MIMO system antenna. The display device as described in item 9 of the scope of patent application, wherein the signal transmission circuit includes a transmission interface circuit, and the transmission interface circuit is coupled to the host device to transmit the second universal serial bus signal to the host device Or receive the first USB signal sent by the host device, wherein the transmission interface circuit conforms to the standard specification of Universal Serial Bus version 4.0 or above. The display device as described in item 9 of the scope of patent application, wherein the signal related to the host device includes an image frame signal, the image frame signal is converted into the first universal serial bus signal by the host device and transmitted by the host device The host device transmits to the signal transmission circuit, the signal conversion circuit converts the image frame signal according to the universal serial bus signal, and the display panel displays the image frame signal. The display device as described in item 9 of the scope of the patent application, wherein the display panel generates an identification signal and a touch detection signal, and the display device further includes a camera for generating a camera image signal, for generating an audio signal At least one of a microphone for sensing a light sensing signal, a light sensor for sensing a light sensing signal, and signals related to the display device include the identification signal, the touch detection signal, the camera image signal, At least one of the audio signal and the light sensing signal.

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