A display device

Abstract

The utility model discloses a kind of display equipment, including control module and transmission interface module, transmission interface module includes first interface and second interface, first interface is the interface based on optical signal transmission, second interface is the interface based on electrical signal transmission;Control module is according to state feedback signal to turn on first path or second path, and pass through the path transmission multimedia signal of turn on, state feedback signal is used to show the access state of second interface;Transmission interface module receives and transmits multimedia signal by first interface, or receives and transmits multimedia signal by second interface. Through control module, the access state of second interface is detected in real time, and according to detection result, different path is controlled to turn on, to transmit multimedia signal to first interface or second interface, so that display equipment can simultaneously support coaxial and light two kinds of interfaces, and can follow inserted wire automatically switch channel, improve user experience, improve the core competitiveness of product.

Description

Technical Field

[0001] This utility model relates to the field of electronic circuit technology, and in particular to a display device. Background Technology

[0002] In today's rapidly evolving digital landscape, the need for interconnectivity between various multimedia devices is becoming increasingly common. SPDIF (Sony / Philips Digital Interface Format), a mainstream digital audio transmission standard, is typically used to transmit uncompressed digital audio signals, such as stereo and multi-channel audio signals, and is widely used in home theaters, audio equipment, televisions, and many other scenarios. SPDIF offers two physical interface types: fiber optic and coaxial. Each interface has its advantages; fiber optic interfaces are typically used for long-distance transmission, while coaxial interfaces are typically used for short-distance transmission.

[0003] Currently, due to the limitations of GPIO (General-Purpose Input / Output) in the design of television display devices, these devices typically only offer either fiber optic or coaxial interfaces. However, this design forces users to purchase a separate fiber optic converter if they require a fiber optic interface but the display only offers a coaxial interface. This increases user costs and reduces user satisfaction and convenience. This design is inconsistent with the high-end positioning of laser display products, severely impacting user experience and potentially causing the loss of customers with specific audio transmission interface requirements. Utility Model Content

[0004] This utility model embodiment provides a display device, including a control module and a transmission interface module, wherein:

[0005] The transmission interface module includes a first interface and a second interface, and the control module is electrically connected to the first interface and the second interface respectively; the first interface is an interface based on optical signal transmission, and the second interface is an interface based on electrical signal transmission.

[0006] The control module is used to: acquire a status feedback signal; and, based on the status feedback signal, activate a first path or a second path, and transmit multimedia signals through the activated path, wherein the status feedback signal is used to characterize the access status of the second interface;

[0007] The transmission interface module is used to: receive and transmit the multimedia signal through the first interface, or receive and transmit the multimedia signal through the second interface.

[0008] In some embodiments of this utility model, the control module includes a main processing unit and a switching control unit, wherein the main processing unit is electrically connected to the switching control unit, and wherein:

[0009] The main processing unit is used to: output the multimedia signal;

[0010] The switching control unit is used for:

[0011] Receive the multimedia signal and acquire the status feedback signal;

[0012] The level state of the status feedback signal is identified, and the first or second path is activated based on the identification result, and the multimedia signal is transmitted through the activated path.

[0013] In some embodiments of this utility model, the switching control unit includes a first control subunit;

[0014] The input terminal of the first control subunit is used to receive the multimedia signal, the feedback terminal of the first control subunit is electrically connected to the second interface and is used to acquire the status feedback signal, the first output terminal of the first control subunit is electrically connected to the first interface, and the second output terminal of the first control subunit is electrically connected to the second interface.

[0015] The first control subunit is used for:

[0016] When the level of the status feedback signal is detected to be the first level, the first path is turned on and the multimedia signal is transmitted through the first path, wherein the first path is the path between the input terminal and the first output terminal of the first control subunit.

[0017] When the level of the status feedback signal is detected to be the second level, the second path is turned on, and the multimedia signal is transmitted through the second path, wherein the second path is the path between the input terminal and the second output terminal of the first control subunit;

[0018] The transmission interface module is specifically used for: receiving and transmitting the multimedia signal through the first interface when the first channel is open; and receiving and transmitting the multimedia signal through the second interface when the second channel is open.

[0019] In some embodiments of this utility model, the first control subunit includes a single-pole double-throw switch, a switching transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, and a second capacitor, wherein:

[0020] The first terminal of the single-pole double-throw switch serves as the input terminal of the first control subunit. The second terminal of the single-pole double-throw switch is electrically connected to one end of the first resistor, one end of the first capacitor, one end of the fourth resistor, and a voltage terminal, respectively. The third terminal of the single-pole double-throw switch is electrically connected to one end of the second resistor. The fourth terminal of the single-pole double-throw switch serves as the first output terminal of the first control subunit. The fifth terminal of the single-pole double-throw switch is grounded. The sixth terminal of the single-pole double-throw switch serves as the second output terminal of the first control subunit.

[0021] The other end of the first resistor is electrically connected to the other end of the second resistor and the first end of the switching transistor, and the control end of the switching transistor is electrically connected to one end of the third resistor.

[0022] The other end of the third resistor is electrically connected to one end of the second capacitor, the other end of the fourth resistor, and one end of the fifth resistor, respectively, serving as the feedback terminal of the first control subunit;

[0023] The other end of the first capacitor, the second end of the switching transistor, the other end of the second capacitor, and the other end of the fifth resistor are all grounded.

[0024] In some embodiments of this utility model, the switching control unit includes a first control subunit;

[0025] The input terminal of the first control subunit is used to receive the multimedia signal, the feedback terminal of the first control subunit is electrically connected to the second interface and is used to acquire the status feedback signal, the first output terminal of the first control subunit is electrically connected to the second interface, and the second output terminal of the first control subunit is electrically connected to the first interface.

[0026] The first control subunit is used for:

[0027] When the level of the status feedback signal is detected to be the first level, the second path is turned on, and the multimedia signal is transmitted through the second path, wherein the second path is the path between the input terminal and the second output terminal of the first control subunit;

[0028] When the level of the status feedback signal is detected to be the second level, the first path is turned on and the multimedia signal is transmitted through the first path, wherein the first path is the path between the input terminal and the first output terminal of the first control subunit.

[0029] The transmission interface module is specifically used for: receiving and transmitting the multimedia signal through the second interface when the first channel is open; and receiving and transmitting the multimedia signal through the first interface when the second channel is open.

[0030] In some embodiments of this utility model, the first control subunit includes a single-pole double-throw switch, a switching transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first capacitor, and a second capacitor, wherein:

[0031] The first terminal of the single-pole double-throw switch serves as the input terminal of the first control subunit. The second terminal of the single-pole double-throw switch is electrically connected to one end of the first resistor, one end of the first capacitor, one end of the fourth resistor, and a voltage terminal, respectively. The third terminal of the single-pole double-throw switch is electrically connected to one end of the second resistor. The fourth terminal of the single-pole double-throw switch serves as the first output terminal of the first control subunit. The fifth terminal of the single-pole double-throw switch is grounded. The sixth terminal of the single-pole double-throw switch serves as the second output terminal of the first control subunit.

[0032] The other end of the first resistor is electrically connected to the other end of the second resistor, the first end of the switching transistor and one end of the sixth resistor, and the control end of the switching transistor is electrically connected to one end of the third resistor;

[0033] The other end of the third resistor is electrically connected to one end of the second capacitor, the other end of the sixth resistor, the other end of the fourth resistor, and one end of the fifth resistor, respectively, serving as the feedback terminal of the first control subunit;

[0034] The other end of the first capacitor, the second end of the switching transistor, the other end of the second capacitor, and the other end of the fifth resistor are all grounded.

[0035] In some embodiments of this utility model, the switching control unit further includes a filtering subunit;

[0036] The input terminal of the filtering subunit is electrically connected to the second interface, and the output terminal of the filtering subunit is electrically connected to the feedback terminal of the first control subunit.

[0037] The filtering subunit is used to: acquire the state feedback signal; filter the state feedback signal; and send the filtered state feedback signal to the first control subunit.

[0038] The first control subunit is specifically used to: identify the level state of the filtered state feedback signal.

[0039] In some embodiments of this utility model, the filter subunit includes a seventh resistor and a third capacitor, wherein:

[0040] One end of the seventh resistor serves as the input terminal of the filter subunit, and the other end of the seventh resistor is electrically connected to one end of the third capacitor, serving as the output terminal of the filter subunit.

[0041] The other end of the third capacitor is grounded.

[0042] In some embodiments of this utility model, the switching control unit further includes a second control subunit;

[0043] The input terminal of the second control subunit is used to receive switching control signals, and the output terminal of the second control subunit is electrically connected to the first control subunit.

[0044] The second control subunit is configured to: activate the first path in the first control subunit, or activate the second path in the first control subunit, according to the switching control signal.

[0045] In some embodiments of this utility model, the second control subunit includes an eighth resistor and a ninth resistor, wherein:

[0046] One end of the eighth resistor and one end of the ninth resistor are electrically connected to each other, serving as the input terminal of the second control subunit; the other end of the eighth resistor is electrically connected to the voltage terminal.

[0047] The other end of the ninth resistor is electrically connected to the third end of the single-pole double-throw switch in the first control subunit.

[0048] The display device provided in this embodiment includes a control module and a transmission interface module. The transmission interface module includes a first interface and a second interface. The first interface is an interface based on optical signal transmission, and the second interface is an interface based on electrical signal transmission. The control module is electrically connected to both the first and second interfaces. The control module is used to acquire status feedback signals. Based on the status feedback signals, it activates either the first or second path and transmits multimedia signals through the activated path. The status feedback signals characterize the access status of the second interface. The transmission interface module is used to receive and transmit multimedia signals through the first interface or through the second interface. By setting the control module to detect the access status of the second interface in real time and control the activation of different paths based on the detection results, the multimedia signals can be transmitted to the first interface or the second interface through the path activated by the control module itself. This allows the display device to simultaneously support both coaxial and optical interfaces and automatically switch channels based on the inserted cable, thereby improving the user experience and enhancing the product's core competitiveness. Attached Figure Description

[0049] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. Obviously, the drawings introduced below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 One of the structural schematic diagrams of a display device provided for related technologies;

[0051] Figure 2 The second schematic diagram of the structure of a display device provided for related technologies;

[0052] Figure 3 This is a schematic diagram illustrating the application scenario of the display device provided in this embodiment of the utility model;

[0053] Figure 4 This is a schematic diagram of the structure of the display device provided in an embodiment of the present utility model;

[0054] Figure 5 This is a schematic diagram of the internal structure of the control module provided in an embodiment of the present utility model;

[0055] Figure 6 This is one of the structural schematic diagrams of the switching control unit provided in the embodiment of this utility model;

[0056] Figure 7 One of the circuit structure diagrams of the switching control unit provided in the embodiment of this utility model;

[0057] Figure 8 A second schematic diagram of the switching control unit provided in this embodiment of the present utility model;

[0058] Figure 9 A second schematic diagram of the circuit structure of the switching control unit provided in an embodiment of this utility model;

[0059] Figure 10 The third schematic diagram of the switching control unit provided in this embodiment of the utility model;

[0060] Figure 11 The third schematic diagram of the circuit structure of the switching control unit provided in the embodiment of this utility model;

[0061] Figure 12 Fourth schematic diagram of the switching control unit provided in this embodiment of the utility model;

[0062] Figure 13The fourth schematic diagram of the circuit structure of the switching control unit provided in the embodiment of this utility model. Detailed Implementation

[0063] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the utility model more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the figures denote the same or similar structures, and therefore repeated descriptions of them will be omitted. Terms describing position and direction in this utility model are illustrative based on the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model. The accompanying drawings of this utility model are for illustrating relative positional relationships only and do not represent actual proportions.

[0064] With the rapid development of digitalization, the digital entertainment industry is also developing rapidly, and the need for interconnectivity between various multimedia devices is becoming increasingly common. Among them, SPDIF, as a mainstream digital audio transmission standard, is usually used to transmit uncompressed digital audio signals, such as stereo audio signals and multi-channel audio signals, and is widely used in many scenarios such as home theaters, audio equipment, televisions, and game consoles.

[0065] SPDIF offers two physical interface types: fiber optic and coaxial. Fiber optic interfaces transmit optical signals and are typically square or round in shape, offering good resistance to electromagnetic interference and making them suitable for long-distance transmission, up to approximately 10 meters. Coaxial interfaces transmit electrical signals and are RCA (Radio Corporation of America) shaped, offering strong compatibility and low cost. However, they have poorer resistance to electromagnetic interference and are suitable for short-distance transmission.

[0066] In existing television display devices, due to the limitations of GPIO design, display devices can typically only be equipped with one of either an optical fiber interface or a coaxial interface, as detailed below:

[0067] Figure 1 One of the structural schematic diagrams of a display device provided by related technologies is shown.

[0068] like Figure 1As shown, the display device 10 typically includes a processor 11 and an optical fiber interface 12, wherein the processor 11 and the optical fiber interface 12 are communicatively connected. The processor 11 can generate and output SPDIF signals to the optical fiber interface 12, and the optical fiber interface 12 will transmit the received SPDIF signals to the subsequent devices in the form of optical signals through its inserted cables. In practical applications, the processor 11 can be a SoC (System on Chip).

[0069] Figure 2 The second schematic diagram of the structure of a display device provided by related technologies is shown.

[0070] like Figure 2 As shown, the display device 20 typically includes a processor 21 and a coaxial interface 22, wherein the processor 21 and the coaxial interface 22 are communicatively connected. The processor 21 can generate and output SPDIF signals to the coaxial interface 22, and the coaxial interface 22 will transmit the received SPDIF signals to the subsequent devices in the form of electrical signals through its inserted wires. In practical applications, the processor 21 can be a System-on-a-Chip (SoC).

[0071] However, regardless of the equipment architecture used, the fact that display devices can only support one type of interface causes significant inconvenience for users. For example, if a user desires an optical fiber interface but the display device only has a coaxial interface, or vice versa, the user must purchase a separate coaxial-to-optical fiber converter. This increases the user's cost and reduces user satisfaction and convenience. This design is inconsistent with the high-end positioning of laser display products, severely impacting user experience and potentially causing the loss of customers with specific audio transmission interface requirements.

[0072] Based on this, this utility model embodiment provides a display device that sets up a first interface based on optical signal transmission and a second interface based on electrical signal transmission in the transmission interface module, and sets up a control module to detect the wiring status of the second interface in real time, so as to realize the automatic switching of the corresponding channels of different interfaces. This allows the display device to support two types of interfaces at the same time, thereby improving the user experience and enhancing product competitiveness.

[0073] The objectives, functional features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model.

[0074] The application scenarios of the display device provided in the embodiments of this utility model are described below with reference to the accompanying drawings:

[0075] Figure 3 This is a schematic diagram illustrating an application scenario of an embodiment of the present utility model, such as... Figure 3 As shown, a user can operate the display device 200 via a mobile terminal 300 and a control device 100. The control device 100 can be a remote control, and communication between the remote control and the display device includes infrared protocol communication, Bluetooth protocol communication, wireless or other wired methods to control the display device 200. The user can input user commands through buttons on the remote control, voice input, control panel input, etc., to control the display device 200. In some embodiments, a mobile terminal, tablet computer, computer, laptop computer, and other smart devices can also be used to control the display device 200.

[0076] In some embodiments, the mobile terminal 300 can install software applications with the display device 200 to establish a connection and communication via network communication protocols, enabling one-to-one control operations and data communication. Audio and video content displayed on the mobile terminal 300 can also be transmitted to the display device 200 for synchronized display. The display device 200 also communicates with the server 400 via various communication methods. The display device 200 can communicate via a local area network (LAN), wireless local area network (WLAN), and other networks. The server 400 can provide various content and interactive features to the display device 200.

[0077] Display device 200 can be any product with display functionality, such as mobile phones, tablets, televisions, laptops, personal computers (PCs), in-vehicle computers, various wearable devices, personal digital assistants (PDAs), etc. Wearable devices include virtual reality (VR) devices and augmented reality (AR) devices. It can also be a component with display functionality, such as a liquid crystal display (LCD), an organic light-emitting diode (OLED) display, or a projection display. In addition to providing broadcast television reception functionality, display device 200 can also include smart network television functionality with computer support.

[0078] Of course, the methods provided in this embodiment of the present invention are not limited to... Figure 3 The application scenarios shown can also be used in other possible application scenarios, and this utility model embodiment does not impose any limitations.

[0079] After introducing the application scenarios of the present utility model embodiments, the preferred embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. Furthermore, the embodiments of the present utility model and the features in the embodiments can be combined with each other without conflict.

[0080] Figure 4 A schematic diagram of the structure of the display device provided in an embodiment of the present invention is shown.

[0081] like Figure 4 As shown, the display device 200 may include a control module 210 and a transmission interface module 220. The transmission interface module 220 includes a first interface 220-A and a second interface 220-B. The first interface 220-A is an interface based on optical signal transmission, and the second interface 220-B is an interface based on electrical signal transmission. The control module 210 is electrically connected to the first interface 220-A and the second interface 220-B, respectively.

[0082] For example Figure 4 The architecture of the display device shown is as follows: The control module 210 can be used to: acquire a status feedback signal; and, based on the status feedback signal, activate either a first path or a second path, and transmit multimedia signals through the activated path, wherein the status feedback signal is used to characterize the access status of the second interface 220-B. The transmission interface module 220 can be used to: receive and transmit multimedia signals through the first interface 220-A, or receive and transmit multimedia signals through the second interface 220-B.

[0083] In this embodiment of the invention, the first interface 220-A can be an optical fiber interface, and the second interface 220-B can be a coaxial interface; the multimedia signal can be a digital audio signal, such as an SPDIF audio signal.

[0084] In the display device provided by this utility model embodiment, a control module is set up to detect the access status of the second interface in real time, and controls the different channels of its own conduction according to the detection results, so that the multimedia signal is transmitted to the first interface or the second interface through the channel conducted by the control module itself. In this way, the display device can simultaneously support the existence of both coaxial and optical interfaces, and realize the function of automatically switching channels according to the inserted cable, thereby better improving the user experience and enhancing the core competitiveness of the product.

[0085] The control module provided in the embodiment of this utility model will be described in detail below with reference to the accompanying drawings:

[0086] Figure 5A schematic diagram of the internal structure of the control module provided in an embodiment of the present invention is shown.

[0087] like Figure 5 As shown, the control module 210 may include a main processing unit 211 and a switching control unit 212, with the main processing unit 211 and the switching control unit 212 electrically connected. The main processing unit 211 can be used to output multimedia signals; the switching control unit 212 can be used to receive multimedia signals and acquire status feedback signals; the level of the status feedback signal is identified, and the first or second path is activated according to the identification result, and the multimedia signal is transmitted through the activated path.

[0088] In some embodiments, the main processing unit 211 may be a SoC. Of course, it should be understood that the main processing unit 211 may also be other chips or devices with signal processing functions, such as FPGA (Field-Programmable Gate Array), etc., and this embodiment of the present invention does not impose any restrictions on this.

[0089] In specific implementations, the switching control unit 212 determines whether to activate the first or second path based on the identification result of the level state of the status feedback signal. The specific implementation method depends on the specific circuit structure of the switching control unit 212. At least the following two implementation methods exist in this embodiment:

[0090] Method 1:

[0091] Figure 6 One of the structural schematic diagrams of the switching control unit provided in the embodiment of this utility model is shown.

[0092] like Figure 6 As shown, the switching control unit 212 may include at least a first control subunit 2121; the input terminal of the first control subunit 2121 is used to receive multimedia signals, the feedback terminal of the first control subunit 2121 is electrically connected to the second interface 220-B for acquiring status feedback signals, the first output terminal of the first control subunit 2121 is electrically connected to the first interface 220-A, and the second output terminal of the first control subunit 2121 is electrically connected to the second interface 220-B; wherein:

[0093] The first control subunit 2121 can be used to: when the level of the status feedback signal is detected to be a first level, to turn on the first path L1 and transmit multimedia signals through the first path, wherein the first path L1 is the path between the input terminal and the first output terminal of the first control subunit 2121; and when the level of the status feedback signal is detected to be a second level, to turn on the second path L2 and transmit multimedia signals through the second path, wherein the second path L2 is the path between the input terminal and the second output terminal of the first control subunit 2121.

[0094] The transmission interface module 220 is specifically used to: receive and transmit multimedia signals through the first interface 220-A when the first channel L1 is turned on; and receive and transmit multimedia signals through the second interface 220-B when the second channel L2 is turned on.

[0095] The first level state is different from the second level state. Specifically, the first level state can be a low level state, in which case the second level state is a high level state; the first level state can also be a high level state, in which case the second level state is a low level state. The specific nature of this is related to the circuit structure and device type of the first control subunit 2121, and this embodiment of the present invention does not impose any restrictions on it.

[0096] Furthermore, in this embodiment of the invention, limited by the terminal shape of the first interface 220-A (i.e., the fiber optic interface), a detection component is added only at the second interface 220-B (i.e., the coaxial interface). This detection component can be a detection pin or a detection spring. If the second interface 220-B is not inserted into the coaxial cable, the detection component will be in contact with ground, and the status feedback signal it generates will be low level. If the second interface 220-B is inserted into the coaxial cable, the detection component will be separated from ground, and the status feedback signal it generates will also become high level accordingly.

[0097] For ease of explanation, the following embodiments will be described using the example of a first level state being low and a second level state being high:

[0098] In specific implementation, when the first control subunit 2121 detects that the status feedback signal is in a low-level state, it controls the first path L1 between its input terminal and the first output terminal to be turned on, so as to transmit the multimedia signal to the first interface 220-A through the first path L1. In this way, after the first interface 220-A receives the multimedia signal, it can transmit the multimedia signal out in the form of an optical signal.

[0099] When the first control subunit 2121 detects that the status feedback signal is in a high-level state, it controls the second path L2 between its input terminal and the second output terminal to be turned on, so as to transmit the multimedia signal to the second interface 220-B through the second path L2. In this way, after receiving the multimedia signal, the second interface 220-B can transmit the multimedia signal out in the form of an electrical signal.

[0100] The circuit structure of the switching control unit is described in detail below:

[0101] Figure 7 This diagram illustrates one of the circuit structure schematics of the switching control unit provided in an embodiment of the present invention.

[0102] like Figure 7 As shown, the first control subunit 2121 may include a single-pole double-throw switch N1, a switching transistor M1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first capacitor C1, and a second capacitor C2, wherein:

[0103] The first terminal (A) of the single-pole double-throw switch N1 serves as the input terminal of the first control subunit 2121. The second terminal (VCC) of the single-pole double-throw switch N1 is electrically connected to one end of the first resistor R1, one end of the first capacitor C1, one end of the fourth resistor R4, and the voltage terminal VDD, respectively. The third terminal (S) of the single-pole double-throw switch N1 is electrically connected to one end of the second resistor R2. The fourth terminal (B2) of the single-pole double-throw switch N1 serves as the first output terminal of the first control subunit 2121. The fifth terminal (GND) of the single-pole double-throw switch N1 is grounded. The sixth terminal (B1) of the single-pole double-throw switch N1 serves as the second output terminal of the first control subunit 2121.

[0104] The other end of the first resistor R1 is electrically connected to the other end of the second resistor R2 and the first end of the switching transistor M1, and the control end of the switching transistor M1 is electrically connected to one end of the third resistor R3.

[0105] The other end of the third resistor R3 is electrically connected to one end of the second capacitor C2, the other end of the fourth resistor R4, and one end of the fifth resistor R5, respectively, serving as the feedback terminal of the first control subunit 2121.

[0106] The other end of the first capacitor C1, the second end of the switching transistor M1, the other end of the second capacitor C2, and the other end of the fifth resistor R5 are all grounded.

[0107] Optionally, in this embodiment of the invention, the switching transistor M1 can be an N-type transistor. Specifically, the transistor can be a bipolar transistor, a MOS (Metal-Oxide-Semiconductor Field-Effect Transistor), an IGBT (Insulated Gate Bipolar Transistor), etc., and this embodiment of the invention does not impose any limitations on this.

[0108] In specific implementation, when the second interface 220-B is not inserted into the coaxial cable, the status feedback signal of the second interface 220-B obtained by the first control subunit 2121 through the feedback terminal is in a low-level state. (Refer to...) Figure 7 The control terminal of switch M1 is in a low-level state due to the state feedback signal. At this time, switch M1 is not turned on, and the first terminal of switch M1 (i.e. Figure 7 At point X, the power supply terminal VDD pulls the switch to a high level, and the third terminal (S) of the single-pole double-throw switch N1 also becomes high level. The single-pole double-throw switch N1 conducts the path between its first terminal (A) and fourth terminal (B2), that is, it conducts the first path L1.

[0109] Since the first terminal (A) of the single-pole double-throw switch N1 is connected to the main processing unit 211, it can receive the multimedia signal output by the main processing unit 211. Since the fourth terminal (B2) of the single-pole double-throw switch N1 is connected to the first interface 220-A, the multimedia signal can be transmitted to the first interface 220-A through the conductive path between the first terminal (A) and the fourth terminal (B2), and then transmitted to the downstream device via the first interface 220-A.

[0110] When the second interface 220-B is inserted into the coaxial cable, the status feedback signal of the second interface 220-B obtained by the first control subunit 2121 through the feedback terminal is at a high level. (Refer to...) Figure 7 The control terminal of switch M1 is also in a high-level state due to the influence of the state feedback signal. At this time, switch M1 is turned on, and the first terminal of switch M1 (i.e. Figure 7 At point X, the circuit is connected to ground and pulled low. The third terminal (S) of the single-pole double-throw switch N1 also becomes low. The single-pole double-throw switch N1 conducts the path between its first terminal (A) and sixth terminal (B1), that is, it conducts the second path L2.

[0111] Since the first terminal (A) of the single-pole double-throw switch N1 is connected to the main processing unit 211, it can receive the multimedia signal output by the main processing unit 211. Since the sixth terminal (B1) of the single-pole double-throw switch N1 is connected to the second interface 220-B, the multimedia signal can be transmitted to the second interface 220-B through the conductive path between the first terminal (A) and the sixth terminal (B1), and then transmitted to the downstream device via the second interface 220-B.

[0112] Furthermore, in this embodiment of the invention, the fourth resistor R4 and the fifth resistor R5 serve as voltage divider resistors to adjust the voltage input to the control terminal of the switching transistor M1. That is, by adjusting the voltage ratio between the fourth resistor R4 and the fifth resistor R5, the input voltage to the control terminal of the switching transistor M1 can be changed. The third resistor R3 is used to limit the current at the control terminal of the switching transistor M1 to ensure that the switching transistor M1 functions as a switch.

[0113] Furthermore, such as Figure 6 As shown, the switching control unit 212 may further include a filtering subunit 2122; the input terminal of the filtering subunit 2122 is electrically connected to the second interface 220-B, and the output terminal of the filtering subunit 2122 is electrically connected to the feedback terminal of the first control subunit 2121; wherein:

[0114] The filtering subunit 2122 can be used to acquire the state feedback signal; filter the state feedback signal; and send the filtered state feedback signal to the first control subunit 2121. The first control subunit 2121 can be used to identify the level state of the filtered state feedback signal.

[0115] like Figure 7 As shown, the filter subunit 2122 may include a seventh resistor R7 and a third capacitor C3. One end of the seventh resistor R7 serves as the input terminal of the filter subunit 2122, and the other end of the seventh resistor R7 is electrically connected to one end of the third capacitor C3, serving as the output terminal of the filter subunit 2122. The other end of the third capacitor C3 is grounded.

[0116] In a specific implementation, after the switching control unit 212 obtains the status feedback signal from the second interface 220-B, it first inputs it to the filtering subunit 2122. Through the filtering effect of the seventh resistor R7 and the third capacitor C3 in the filtering subunit 2122, the noise interference in the status feedback signal is filtered out to ensure the integrity of the detection signal. Then, the filtered status feedback signal is transmitted to the feedback terminal of the first control subunit 2121. The first control subunit 2121, using the method in the above embodiment, identifies the level state of the status feedback signal and controls the conduction of the corresponding path, thereby transmitting the multimedia signal to a corresponding interface in the interface module 220.

[0117] Figure 8 The second schematic diagram of the switching control unit provided in this embodiment of the present invention is shown.

[0118] like Figure 8 As shown, the switching control unit 212 may further include a second control subunit 2123; the input terminal of the second control subunit 2123 is used to receive the switching control signal, and the output terminal of the second control subunit 2123 is electrically connected to the first control subunit 2121; wherein:

[0119] The second control subunit 2123 can be used to activate the first path in the first control subunit 2121 or activate the second path in the first control subunit 2121 according to the switching control signal.

[0120] In practical implementation, with the optimization and upgrading of the software system, the display device 200 can also control the switching of channels through UI (User Interface). That is, the user can configure the switching control signal through the UI, so that the second control subunit 2123 can conduct the first path L1 or the second path L2 in the first control subunit 2121 under the control of the switching control signal it receives.

[0121] In one embodiment, the switching control signal may include a first switching control sub-signal and a second switching control sub-signal. The second control sub-unit 2123 may control the conduction of the first path L1 in the first control sub-unit 2121 under the control of the first switching control sub-signal, and control the conduction of the second path L2 in the first control sub-unit 2121 under the control of the second switching control sub-signal.

[0122] In another embodiment, the second control subunit 2123 can identify the level state of the switching control signal. When the switching control signal is identified as being at a high level, it controls the first path L1 in the first control subunit 2121 to be turned on. When the switching control signal is identified as being at a low level, it controls the second path L2 in the first control subunit 2121 to be turned on.

[0123] Figure 9 The second schematic diagram of the circuit structure of the switching control unit provided in this embodiment of the present invention is shown.

[0124] like Figure 9 As shown, the second control subunit 2123 may include an eighth resistor R8 and a ninth resistor R9, wherein: one end of the eighth resistor R8 and one end of the ninth resistor R9 are electrically connected as the input terminal of the second control subunit 2123, and the other end of the eighth resistor R8 is electrically connected to the voltage terminal VDD; the other end of the ninth resistor R9 is electrically connected to the third terminal (S) of the single-pole double-throw switch N1 in the first control subunit 2121.

[0125] In practical implementation, when the switching control signal is at a high level, the third terminal (S) of the single-pole double-throw switch N1 will also become high. At this time, the single-pole double-throw switch N1 conducts the path between its first terminal (A) and fourth terminal (B2), that is, it conducts the first path L1. When the switching control signal is at a low level, the third terminal (S) of the single-pole double-throw switch N1 will also become low. At this time, the single-pole double-throw switch N1 conducts the path between its first terminal (A) and sixth terminal (B1), that is, it conducts the second path L2.

[0126] Method 2:

[0127] Figure 10 The third schematic diagram of the switching control unit provided in this embodiment of the present invention is shown.

[0128] like Figure 10 As shown, the switching control unit 212 may include at least a first control subunit 2121; the input terminal of the first control subunit 2121 is used to receive multimedia signals, the feedback terminal of the first control subunit 2121 is electrically connected to the second interface 220-B for acquiring status feedback signals, the first output terminal of the first control subunit 2121 is electrically connected to the second interface 220-B, and the second output terminal of the first control subunit 2121 is electrically connected to the first interface 220-A; wherein:

[0129] The first control subunit 2121 can be used to: when the level of the status feedback signal is detected to be a first level, turn on the second path L2 and transmit multimedia signals through the second path L2; when the level of the status feedback signal is detected to be a second level, turn on the first path L1 and transmit multimedia signals through the first path L1, wherein the first level and the second level are different.

[0130] The transmission interface module 220 is specifically used to: receive and transmit multimedia signals through the second interface 220-B when the first channel L1 is turned on; and receive and transmit multimedia signals through the first interface 220-A when the second channel L2 is turned on.

[0131] In specific implementation, when the first control subunit 2121 detects that the status feedback signal is in a low-level state, it controls the first path L1 between its input terminal and the first output terminal to be turned on, so as to transmit the multimedia signal to the second interface 220-B through the first path L1. In this way, after the second interface 220-B receives the multimedia signal, it can transmit the multimedia signal out in the form of an electrical signal.

[0132] When the first control subunit 2121 detects that the status feedback signal is in a high-level state, it controls the second path L2 between its input terminal and the second output terminal to be turned on, so as to transmit the multimedia signal to the first interface 220-A through the second path L2. In this way, after the first interface 220-A receives the multimedia signal, it can transmit the multimedia signal out in the form of an optical signal.

[0133] The circuit structure of the switching control unit is described in detail below:

[0134] Figure 11 The third schematic diagram of the circuit structure of the switching control unit provided in this embodiment of the present invention is shown.

[0135] like Figure 11 As shown, the first control subunit 2121 may include a single-pole double-throw switch N1, a switching transistor M1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, and a second capacitor C2, wherein:

[0136] The first terminal (A) of the single-pole double-throw switch N1 serves as the input terminal of the first control subunit 2121. The second terminal (VCC) of the single-pole double-throw switch N1 is electrically connected to one end of the first resistor R1, one end of the first capacitor C1, one end of the fourth resistor R4, and the voltage terminal VDD, respectively. The third terminal (S) of the single-pole double-throw switch N1 is electrically connected to one end of the second resistor R2. The fourth terminal (B2) of the single-pole double-throw switch N1 serves as the first output terminal of the first control subunit 2121. The fifth terminal (GND) of the single-pole double-throw switch N1 is grounded. The sixth terminal (B1) of the single-pole double-throw switch N1 serves as the second output terminal of the first control subunit 2121.

[0137] The other end of the first resistor R1 is electrically connected to the other end of the second resistor R2, the first end of the switch M1 and one end of the sixth resistor R6 respectively, and the control end of the switch M1 is electrically connected to one end of the third resistor R3.

[0138] The other end of the third resistor R3 is electrically connected to one end of the second capacitor C2, the other end of the sixth resistor R6, the other end of the fourth resistor R4, and one end of the fifth resistor R5, respectively, serving as the feedback terminal of the first control subunit 2121.

[0139] The other end of the first capacitor C1, the second end of the switching transistor M1, the other end of the second capacitor C2, and the other end of the fifth resistor R5 are all grounded.

[0140] In specific implementation, when the second interface 220-B is not inserted into the coaxial cable, the status feedback signal of the second interface 220-B obtained by the first control subunit 2121 through the feedback terminal is in a low-level state. (Refer to...) Figure 11The status feedback signal can be directly transmitted to the third terminal (S) of the single-pole double-throw switch N1 after passing through the sixth resistor R6 and the second resistor R2, thereby pulling down the level at the third terminal (S) of the single-pole double-throw switch N1. At this time, the single-pole double-throw switch N1 conducts the path between its first terminal (A) and the sixth terminal (B1), that is, conducts the second path L2.

[0141] Since the first terminal (A) of the single-pole double-throw switch N1 is connected to the main processing unit 211, it can receive the multimedia signal output by the main processing unit 211. Since the sixth terminal (B1) of the single-pole double-throw switch N1 is connected to the first interface 220-A, the multimedia signal can be transmitted to the first interface 220-A through the conductive path between the first terminal (A) and the sixth terminal (B1), and then transmitted to the downstream device via the first interface 220-A.

[0142] When the second interface 220-B is inserted into the coaxial cable, the status feedback signal of the second interface 220-B obtained by the first control subunit 2121 through the feedback terminal is at a high level. (Refer to...) Figure 11 The status feedback signal can be directly transmitted to the third terminal (S) of the single-pole double-throw switch N1 after passing through the sixth resistor R6 and the second resistor R2, thereby pulling the level at the third terminal (S) of the single-pole double-throw switch N1 high. At this time, the single-pole double-throw switch N1 conducts the path between its first terminal (A) and fourth terminal (B2), that is, conducts the first path L1.

[0143] Since the first terminal (A) of the single-pole double-throw switch N1 is connected to the main processing unit 211, it can receive the multimedia signal output by the main processing unit 211. Since the fourth terminal (B2) of the single-pole double-throw switch N1 is connected to the second interface 220-B, the multimedia signal can be transmitted to the second interface 220-B through the conductive path between the first terminal (A) and the fourth terminal (B2), and then transmitted to the downstream device via the second interface 220-B.

[0144] Furthermore, it should be noted that in this embodiment, the switching transistor M1, the third resistor R3, and the fourth resistor R4 are not included.

[0145] Furthermore, such as Figure 10 As shown, the switching control unit 212 may further include a filtering subunit 2122; the input terminal of the filtering subunit 2122 is electrically connected to the second interface 220-B, and the output terminal of the filtering subunit 2122 is electrically connected to the feedback terminal of the first control subunit 2121; wherein:

[0146] The filtering subunit 2122 can be used to acquire the state feedback signal; filter the state feedback signal; and send the filtered state feedback signal to the first control subunit 2121. The first control subunit 2121 can be used to identify the level state of the filtered state feedback signal.

[0147] like Figure 11 As shown, the filter subunit 2122 may include a seventh resistor R7 and a third capacitor C3. One end of the seventh resistor R7 serves as the input terminal of the filter subunit 2122, and the other end of the seventh resistor R7 is electrically connected to one end of the third capacitor C3, serving as the output terminal of the filter subunit 2122. The other end of the third capacitor C3 is grounded.

[0148] In a specific implementation, after the switching control unit 212 obtains the status feedback signal from the second interface 220-B, it first inputs it to the filtering subunit 2122. Through the filtering effect of the seventh resistor R7 and the third capacitor C3 in the filtering subunit 2122, the noise interference in the status feedback signal is filtered out to ensure the integrity of the detection signal. Then, the filtered status feedback signal is transmitted to the feedback terminal of the first control subunit 2121. The first control subunit 2121, using the method in the above embodiment, identifies the level state of the status feedback signal and controls the conduction of the corresponding path, thereby transmitting the multimedia signal to a corresponding interface in the interface module 220.

[0149] Figure 12 The fourth schematic diagram of the switching control unit provided in this embodiment of the present invention is shown.

[0150] like Figure 12 As shown, the switching control unit 212 may further include a second control subunit 2123; the input terminal of the second control subunit 2123 is used to receive a switching control signal, and the output terminal of the second control subunit 2123 is electrically connected to the first control subunit 2121; wherein: the second control subunit 2123 may be used to turn on the first path in the first control subunit 2121 or, according to the switching control signal, turn on the second path in the first control subunit 2121.

[0151] In practical implementation, with the optimization and upgrading of the software system, the display device 200 can also control the switching of channels through UI configuration. That is, the user can configure the switching control signal through the UI, so that the second control subunit 2123 can conduct the first path L1 or the second path L2 in the first control subunit 2121 under the control of the switching control signal it receives.

[0152] In one embodiment, the switching control signal may include a first switching control sub-signal and a second switching control sub-signal. The second control sub-unit 2123 may control the conduction of the first path L1 in the first control sub-unit 2121 under the control of the first switching control sub-signal, and control the conduction of the second path L2 in the first control sub-unit 2121 under the control of the second switching control sub-signal.

[0153] In another embodiment, the second control subunit 2123 can identify the level state of the switching control signal. When the switching control signal is identified as being at a high level, it controls the first path L1 in the first control subunit 2121 to be turned on. When the switching control signal is identified as being at a low level, it controls the second path L2 in the first control subunit 2121 to be turned on.

[0154] Figure 13 The fourth schematic diagram of the circuit structure of the switching control unit provided in this embodiment of the present invention is shown.

[0155] like Figure 13 As shown, the second control subunit 2123 may include an eighth resistor R8 and a ninth resistor R9, wherein: one end of the eighth resistor R8 and one end of the ninth resistor R9 are electrically connected as the input terminal of the second control subunit 2123, and the other end of the eighth resistor R8 is electrically connected to the voltage terminal VDD; the other end of the ninth resistor R9 is electrically connected to the third terminal (S) of the single-pole double-throw switch N1 in the first control subunit 2121.

[0156] In practical implementation, when the switching control signal is at a high level, the third terminal (S) of the single-pole double-throw switch N1 will also become high. At this time, the single-pole double-throw switch N1 conducts the path between its first terminal (A) and fourth terminal (B2), that is, it conducts the first path L1. When the switching control signal is at a low level, the third terminal (S) of the single-pole double-throw switch N1 will also become low. At this time, the single-pole double-throw switch N1 conducts the path between its first terminal (A) and sixth terminal (B1), that is, it conducts the second path L2.

[0157] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0158] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A display device, characterized in that, It includes a control module and a transmission interface module, wherein: The transmission interface module includes a first interface and a second interface, and the control module is electrically connected to the first interface and the second interface respectively; the first interface is an interface based on optical signal transmission, and the second interface is an interface based on electrical signal transmission. The control module is used to: acquire a status feedback signal; and, based on the status feedback signal, activate a first path or a second path, and transmit multimedia signals through the activated path, wherein the status feedback signal is used to characterize the access status of the second interface; The transmission interface module is used to: receive and transmit the multimedia signal through the first interface, or receive and transmit the multimedia signal through the second interface.

2. The display device as described in claim 1, characterized in that, The control module includes a main processing unit and a switching control unit, wherein the main processing unit is electrically connected to the switching control unit, and: The main processing unit is used to: output the multimedia signal; The switching control unit is used for: Receive the multimedia signal and acquire the status feedback signal; The level state of the status feedback signal is identified, and the first or second path is activated based on the identification result, and the multimedia signal is transmitted through the activated path.

3. The display device as described in claim 2, characterized in that, The switching control unit includes a first control subunit; The input terminal of the first control subunit is used to receive the multimedia signal, the feedback terminal of the first control subunit is electrically connected to the second interface and is used to acquire the status feedback signal, the first output terminal of the first control subunit is electrically connected to the first interface, and the second output terminal of the first control subunit is electrically connected to the second interface. The first control subunit is used for: When the level of the status feedback signal is detected to be the first level, the first path is turned on and the multimedia signal is transmitted through the first path, wherein the first path is the path between the input terminal and the first output terminal of the first control subunit. When the level of the status feedback signal is detected to be the second level, the second path is turned on, and the multimedia signal is transmitted through the second path, wherein the second path is the path between the input terminal and the second output terminal of the first control subunit; The transmission interface module is specifically used for: receiving and transmitting the multimedia signal through the first interface when the first channel is open; and receiving and transmitting the multimedia signal through the second interface when the second channel is open.

4. The display device as described in claim 3, characterized in that, The first control subunit includes a single-pole double-throw switch, a switching transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, and a second capacitor, wherein: The first terminal of the single-pole double-throw switch serves as the input terminal of the first control subunit. The second terminal of the single-pole double-throw switch is electrically connected to one end of the first resistor, one end of the first capacitor, one end of the fourth resistor, and a voltage terminal, respectively. The third terminal of the single-pole double-throw switch is electrically connected to one end of the second resistor. The fourth terminal of the single-pole double-throw switch serves as the first output terminal of the first control subunit. The fifth terminal of the single-pole double-throw switch is grounded. The sixth terminal of the single-pole double-throw switch serves as the second output terminal of the first control subunit. The other end of the first resistor is electrically connected to the other end of the second resistor and the first end of the switching transistor, and the control end of the switching transistor is electrically connected to one end of the third resistor. The other end of the third resistor is electrically connected to one end of the second capacitor, the other end of the fourth resistor, and one end of the fifth resistor, respectively, serving as the feedback terminal of the first control subunit; The other end of the first capacitor, the second end of the switching transistor, the other end of the second capacitor, and the other end of the fifth resistor are all grounded.

5. The display device as described in claim 2, characterized in that, The switching control unit includes a first control subunit; The input terminal of the first control subunit is used to receive the multimedia signal, the feedback terminal of the first control subunit is electrically connected to the second interface and is used to acquire the status feedback signal, the first output terminal of the first control subunit is electrically connected to the second interface, and the second output terminal of the first control subunit is electrically connected to the first interface. The first control subunit is used for: When the level of the status feedback signal is detected to be the first level, the second path is turned on, and the multimedia signal is transmitted through the second path, wherein the second path is the path between the input terminal and the second output terminal of the first control subunit; When the level of the status feedback signal is detected to be the second level, the first path is turned on and the multimedia signal is transmitted through the first path, wherein the first path is the path between the input terminal and the first output terminal of the first control subunit. The transmission interface module is specifically used for: receiving and transmitting the multimedia signal through the second interface when the first channel is open; and receiving and transmitting the multimedia signal through the first interface when the second channel is open.

6. The display device as claimed in claim 5, characterized in that, The first control subunit includes a single-pole double-throw switch, a switching transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first capacitor, and a second capacitor, wherein: The first terminal of the single-pole double-throw switch serves as the input terminal of the first control subunit. The second terminal of the single-pole double-throw switch is electrically connected to one end of the first resistor, one end of the first capacitor, one end of the fourth resistor, and a voltage terminal, respectively. The third terminal of the single-pole double-throw switch is electrically connected to one end of the second resistor. The fourth terminal of the single-pole double-throw switch serves as the first output terminal of the first control subunit. The fifth terminal of the single-pole double-throw switch is grounded. The sixth terminal of the single-pole double-throw switch serves as the second output terminal of the first control subunit. The other end of the first resistor is electrically connected to the other end of the second resistor, the first end of the switching transistor and one end of the sixth resistor, and the control end of the switching transistor is electrically connected to one end of the third resistor; The other end of the third resistor is electrically connected to one end of the second capacitor, the other end of the sixth resistor, the other end of the fourth resistor, and one end of the fifth resistor, respectively, serving as the feedback terminal of the first control subunit; The other end of the first capacitor, the second end of the switching transistor, the other end of the second capacitor, and the other end of the fifth resistor are all grounded.

7. The display device according to any one of claims 3 to 6, characterized in that, The switching control unit further includes a filtering subunit; The input terminal of the filtering subunit is electrically connected to the second interface, and the output terminal of the filtering subunit is electrically connected to the feedback terminal of the first control subunit. The filtering subunit is used to: acquire the state feedback signal; filter the state feedback signal; and send the filtered state feedback signal to the first control subunit. The first control subunit is specifically used to: identify the level state of the filtered state feedback signal.

8. The display device as claimed in claim 7, characterized in that, The filter subunit includes a seventh resistor and a third capacitor, wherein: One end of the seventh resistor serves as the input terminal of the filter subunit, and the other end of the seventh resistor is electrically connected to one end of the third capacitor, serving as the output terminal of the filter subunit. The other end of the third capacitor is grounded.

9. The display device as described in any one of claims 3 to 6, characterized in that, The switching control unit further includes a second control subunit; The input terminal of the second control subunit is used to receive switching control signals, and the output terminal of the second control subunit is electrically connected to the first control subunit. The second control subunit is configured to: activate the first path in the first control subunit, or activate the second path in the first control subunit, according to the switching control signal.

10. The display device as claimed in claim 9, characterized in that, The second control subunit includes an eighth resistor and a ninth resistor, wherein: One end of the eighth resistor and one end of the ninth resistor are electrically connected to each other, serving as the input terminal of the second control subunit; the other end of the eighth resistor is electrically connected to the voltage terminal. The other end of the ninth resistor is electrically connected to the third end of the single-pole double-throw switch in the first control subunit.

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