3D emission circuit and electronic equipment

Abstract

A 3D emission circuit and an electronic device belong to the technical field of 3D display, and are connected with a display circuit used for displaying images according to display signals, and convert a first field synchronization signal into a first wired communication signal through a first Ethernet circuit; the control circuit outputs a second wired communication signal and a display signal according to the first wired communication signal; the communication circuit converts the second wired communication signal into a first radio frequency signal; the power amplifier circuit amplifies the first radio frequency signal to output a second radio frequency signal; the wireless transmitting circuit converts the second radio frequency signal into a wireless communication signal and sends the wireless communication signal to the 3D glasses circuit through a wireless communication link; therefore, the communication capability of the 3D transmitter is enhanced, the transmission distance is improved, and the number of communication devices is increased.

Description

Technical Field

[0001] The present application belongs to the field of three-dimensional display technology, and in particular relates to a 3D emission circuit and electronic equipment. Background Art

[0002] The three-dimensional (3D) transmitting circuit, in conjunction with a 3D function sending card and a 3D glasses circuit, can enable the human eye to obtain a 3D visual experience.

[0003] A wireless transmission mode is usually adopted between the 3D transmitting circuit and the 3D glasses circuit. The wireless transmission of the relevant 3D transmitting circuit adopts a 2.4G wireless chip and an onboard antenna to achieve wireless communication.

[0004] However, the wireless transmission power of the related 3D transmitting circuit is low. Although it has low power consumption performance, it cannot achieve long-distance wireless communication between multiple devices.

[0005] Therefore, the related 3D transmitting circuit has low wireless transmission power, small coverage range and few devices that can communicate simultaneously. Utility Model Content

[0006] The purpose of this application is to provide a 3D transmitting circuit and electronic device, aiming to solve the problems of low wireless transmission power, small coverage range and few simultaneous communication devices in related 3D transmitting circuits.

[0007] An embodiment of the present application provides a 3D emission circuit connected to a display circuit for displaying an image according to a display signal. The 3D emission circuit includes:

[0008] a first Ethernet circuit, configured to receive a first field synchronization signal and convert the first field synchronization signal into a first wired communication signal;

[0009] a control circuit connected to the first Ethernet circuit and the display circuit, and configured to output a second wired communication signal and the display signal according to the first wired communication signal;

[0010] a communication circuit, connected to the control circuit, and configured to convert the second wired communication signal into a first radio frequency signal;

[0011] a power amplifier circuit, connected to the communication circuit, configured to amplify the first radio frequency signal to output a second radio frequency signal;

[0012] The wireless transmitting circuit is connected to the power amplifier circuit and is used to convert the second radio frequency signal into a wireless communication signal and send the wireless communication signal to the 3D glasses circuit through a wireless communication link.

[0013] In one embodiment, the circuit is connected to the 3D glasses;

[0014] The 3D glasses circuit is used to operate according to the wireless communication signal.

[0015] In one embodiment, the control circuit is further configured to output a third wired communication signal according to the first wired communication signal;

[0016] The 3D transmitting circuit further includes:

[0017] The second Ethernet circuit is connected to the control circuit and is used to convert the third wired communication signal into a second field synchronization signal and send the second field synchronization signal to the next-stage 3D transmission circuit.

[0018] In one embodiment, the first Ethernet circuit and the second Ethernet circuit are both 5G Ethernet circuits or Gigabit Ethernet circuits.

[0019] In one embodiment, the control circuit is further configured to output a fourth wired communication signal according to the first wired communication signal;

[0020] The 3D transmitting circuit further includes:

[0021] A communication interface is connected to the control circuit, and is used to receive the fourth wired communication signal and forward the fourth wired communication signal to an external 3D transmitter.

[0022] In one embodiment, the communication circuit includes a radio frequency receiver;

[0023] The serial communication clock terminal of the radio frequency receiver and the serial data input terminal of the radio frequency receiver serve together as the first wired communication signal input terminal of the communication circuit, and are connected to the control circuit to receive the first wired communication signal;

[0024] The positive RF signal terminal of the RF receiver and the negative RF signal terminal of the RF receiver serve together as the first RF signal output terminal of the communication circuit, and are connected to the power amplifier circuit to output the first RF signal;

[0025] The chip select terminal of the radio frequency receiver serves as a chip select signal input terminal of the communication circuit and is connected to the control circuit to receive the chip select signal.

[0026] In one embodiment, the power amplifier circuit includes a range extender;

[0027] The positive RF terminal of the range extender and the negative RF signal terminal of the range extender serve together as a first RF signal input terminal of the power amplifier circuit, and are connected to the communication circuit to receive the first RF signal;

[0028] The antenna end of the range extender serves as the second radio frequency signal output end of the power amplifier circuit and is connected to the wireless radio frequency circuit to output the second radio frequency signal.

[0029] In one embodiment, the wireless transmitting circuit includes a first inductor, a second inductor, a third inductor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor and an antenna;

[0030] The first end of the first inductor, the first end of the second inductor, the first end of the first capacitor, and the first end of the second capacitor collectively serve as a second RF signal input end of the wireless transmitting circuit, and are connected to the power amplifier circuit to receive the second RF signal;

[0031] The second end of the first inductor and the second end of the first capacitor are commonly connected to a first power supply;

[0032] The second end of the second inductor is connected to the first end of the third inductor and the first end of the third capacitor, and the second end of the third inductor is connected to the first end of the fourth capacitor and the antenna;

[0033] The second end of the second capacitor, the second end of the third capacitor, and the second end of the fourth capacitor C4 are commonly connected to the power ground.

[0034] In one embodiment, the control circuit includes a microprocessor;

[0035] The first universal input / output terminal of the microprocessor and the second universal input / output terminal of the microprocessor serve together as the first wired communication signal input terminal of the control circuit, and are connected to the communication circuit to output the first wired communication signal;

[0036] The third general input and output terminal of the microprocessor serves as the chip select signal output terminal of the control circuit and is connected to the communication circuit to output the chip select signal.

[0037] An embodiment of the present invention further provides an electronic device, which includes the above-mentioned 3D emission circuit.

[0038] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: since a power amplifier circuit is provided to amplify the first radio frequency signal to output a second radio frequency signal, the wireless transmission circuit converts the second radio frequency signal into a wireless communication signal, and transmits the wireless communication signal to the 3D glasses circuit via a wireless communication link, thereby enhancing the communication capability of the 3D transmitter, increasing the transmission distance, and increasing the number of communicating devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical utility model in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 A schematic structural diagram of a 3D transmitting circuit provided in one embodiment of the present application;

[0041] Figure 2 Another structural diagram of a 3D transmitting circuit provided in an embodiment of the present application;

[0042] Figure 3 Another structural diagram of a 3D transmitting circuit provided in an embodiment of the present application;

[0043] Figure 4 Another structural diagram of a 3D transmitting circuit provided in an embodiment of the present application;

[0044] Figure 5 This is a partial exemplary circuit schematic diagram of a 3D emission circuit provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0046] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0047] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0049] Figure 1 A schematic diagram of the structure of a 3D transmitting circuit provided in a preferred embodiment of the present application is shown. For ease of explanation, only the parts related to this embodiment are shown, which are described in detail as follows:

[0050] The 3D transmitting circuit is connected to a display circuit 90 for displaying images according to a display signal. The 3D transmitting circuit includes a first Ethernet circuit 11 , a control circuit 12 , a communication circuit 13 , a power amplifier circuit 14 and a wireless transmitting circuit 15 .

[0051] The first Ethernet circuit 11 is configured to receive a first field synchronization signal and convert the first field synchronization signal into a first wired communication signal.

[0052] The control circuit 12 is connected to the first Ethernet circuit 11 and the display circuit 90, and is configured to output a second wired communication signal and a display signal according to the first wired communication signal.

[0053] The communication circuit 13 is connected to the control circuit 12 and is used to convert the second wired communication signal into a first radio frequency signal.

[0054] The power amplifier circuit 14 is connected to the communication circuit 13 and is used to amplify the first radio frequency signal to output a second radio frequency signal.

[0055] The wireless transmitting circuit 15 is connected to the power amplifier circuit 14 and is used to convert the second radio frequency signal into a wireless communication signal and send the wireless communication signal to the 3D glasses circuit 80 through a wireless communication link.

[0056] It is understandable that the control circuit 12 can be a programmable logic array (FPGA) or a microprocessor. The display signal can be a low-voltage differential signal (LVDS) signal. The display circuit 90 can be applied to a display device, and the above-mentioned display device includes a light emitting diode (LED) display screen, a liquid crystal display (LCD) display screen, and an organic electroluminescence display (OLED) display screen. The first field synchronization signal can be output by a 3D function sending card and transmitted to the first Ethernet circuit 11 via an RJ45 network port. The first wired communication signal and the second wired communication signal include a serial peripheral interface (SPI) signal and a universal asynchronous receiver / transmitter (UART) signal.

[0057] In a specific implementation, after the first field synchronization signal is converted into a first wired communication signal, it is analyzed by the control circuit 12 and then converted into a first radio frequency signal by the communication circuit 13. The transmission power is enhanced by the power amplifier circuit 14 to obtain a second radio frequency signal, so as to achieve gain amplification and improve the stability of the transmission signal; finally, through the antenna in the wireless transmission circuit 15, the signal in the specified direction is further enhanced, thereby enhancing the stability of wireless transmission.

[0058] like Figure 2 As shown, the 3D transmitting circuit is connected to the 3D glasses circuit 80; the 3D glasses circuit 80 is used to work according to the wireless communication signal.

[0059] In a specific implementation, when the display circuit 90 outputs an image related to the left eye, the 3D glasses circuit 80 controls the left eye lens to be light-transmitting and the right eye lens to be light-opaque according to the wireless communication signal. When the display circuit 90 outputs an image related to the right eye, the 3D glasses circuit 80 controls the right eye lens to be light-transmitting and the left eye lens to be light-opaque according to the wireless communication signal. In this way, the two glasses see different images. By frequently switching in this way, each eye can obtain slightly different images, and a 3D stereoscopic image is generated through calculation by the brain, thereby achieving a 3D display effect.

[0060] like Figure 3 As shown, the control circuit 12 is further configured to output a third wired communication signal according to the first wired communication signal; the 3D transmitting circuit further includes a second Ethernet circuit 16 .

[0061] The second Ethernet circuit 16 is connected to the control circuit 12 and is configured to convert the third wired communication signal into a second field synchronization signal and send the second field synchronization signal to the next-stage 3D transmitting circuit.

[0062] By transparently transmitting the field synchronization signal, the cascade of 3D transmitting circuits can be achieved, thereby expanding the 3D display system, further improving the transmission distance, and increasing the number of communicating devices.

[0063] As an example and not a limitation, the first Ethernet circuit 11 and the second Ethernet circuit 16 can both be 5G Ethernet circuits or Gigabit Ethernet circuits; thereby increasing the flexibility of configuring the first Ethernet circuit 11 and the second Ethernet circuit 16.

[0064] like Figure 4 As shown, the control circuit 12 is further configured to output a fourth wired communication signal according to the first wired communication signal; the 3D transmitting circuit further includes a communication interface 17 .

[0065] The communication interface 17 is connected to the control circuit 12 and is configured to receive the fourth wired communication signal and forward the fourth wired communication signal to the external 3D transmitter.

[0066] It can be understood that the external 3D transmitter is used to convert the fourth wired communication signal into the first communication signal, and send the first communication signal to the 3D glasses circuit.

[0067] It should be noted that the first communication signal may be a wired communication signal or a wireless communication signal. The communication interface 17 may be based on the Video Electronics Standards Association (VESA) standard.

[0068] Compared with the 3D transmitting circuit protected by this application, the external 3D transmitter lacks the configuration of the power amplifier circuit 14 (which belongs to the traditional 3D transmitting circuit). By setting up the communication interface 17, the wireless communication signal can be sent to the 3D glasses circuit through the wireless transmitting circuit 15, and the first communication signal can be sent to the 3D glasses circuit through the external 3D transmitter, thereby further improving the transmission distance and increasing the number of communicating devices.

[0069] Figure 5 A partial exemplary circuit structure of a 3D transmitting circuit provided by an embodiment of the present invention is shown. For ease of illustration, only the portion related to the embodiment of the present invention is shown, and is described in detail as follows:

[0070] The communication circuit 13 includes a radio frequency receiver U1 .

[0071] The serial communication clock terminal SCLK of the RF receiver U1 and the serial data input terminal SI of the RF receiver U1 serve together as the first wired communication signal input terminal of the communication circuit 13, and are connected to the control circuit 12 to receive the first wired communication signal; the positive RF signal terminal RF_P of the RF receiver U1 and the negative RF signal terminal RF_N of the RF receiver U1 serve together as the first RF signal output terminal of the communication circuit 13, and are connected to the power amplifier circuit 14 to output the first RF signal; the chip select terminal CSn of the RF receiver U1 serves as the chip select signal input terminal of the communication circuit 13, and is connected to the control circuit 12 to receive the chip select signal.

[0072] In a specific implementation, the RF receiver U1 may be a 2.4 GHz RF receiver.

[0073] The power amplifier circuit 14 includes a range extender U2.

[0074] The positive RF terminal RF_P of the range extender U2 and the negative RF signal terminal RF_N of the range extender U2 serve as the first RF signal input terminal of the power amplifier circuit 14, and are connected to the communication circuit 13 to access the first RF signal; the antenna terminal ANT of the range extender U2 serves as the second RF signal output terminal of the power amplifier circuit 14, and is connected to the wireless RF circuit to output the second RF signal.

[0075] In a specific implementation, the range extender U2 may be a 2.4 GHz range extender, which may achieve a 20 dBm power gain amplification.

[0076] The wireless transmitting circuit 15 includes a first inductor L1 , a second inductor L2 , a third inductor L3 , a first capacitor C1 , a second capacitor C2 , a third capacitor C1 , a fourth capacitor C4 and an antenna ANT.

[0077] The first end of the first inductor L1, the first end of the second inductor L2, the first end of the first capacitor C1, and the first end of the second capacitor C2 collectively serve as a second RF signal input end of the wireless transmitting circuit 15, and are connected to the power amplifier circuit 14 to receive the second RF signal; the second end of the first inductor L1 and the second end of the first capacitor C1 are commonly connected to the first power supply VAA; the second end of the second inductor L2 is connected to the first end of the third inductor L3 and the first end of the third capacitor C3, and the second end of the third inductor L3 is connected to the first end of the fourth capacitor C4 and the antenna; the second end of the second capacitor C2, the second end of the third capacitor C1, and the second end of the fourth capacitor C4 are commonly connected to the power ground.

[0078] It can be understood that the inductor and capacitor network in the wireless transmitting circuit 15 is used for impedance matching and filtering.

[0079] The control circuit 12 includes a microprocessor U3.

[0080] The first general-purpose input / output terminal GPIO1 of the microprocessor U3 and the second general-purpose input / output terminal GPIO5 of the microprocessor U3 serve together as the first wired communication signal input terminal of the control circuit 12, and are connected to the communication circuit 13 to output the first wired communication signal; the third general-purpose input / output terminal GPIO3 of the microprocessor U3 serves as the chip select signal output terminal of the control circuit 12, and is connected to the communication circuit 13 to output the chip select signal.

[0081] The following is combined with the working principle Figure 5 As shown for further explanation:

[0082] The first Ethernet circuit 11 receives the first field synchronization signal, converts the first field synchronization signal into a first wired communication signal, and sends the first wired communication signal to the microprocessor U3. The microprocessor U3 outputs a display signal to the display circuit 90 according to the first wired communication signal, and the microprocessor U3 outputs a second wired communication signal from the first general input and output terminal GPIO1 of the microprocessor U3 and the second general input and output terminal GPIO5 of the microprocessor U3 to the serial communication clock terminal SCLK of the RF receiver U1 and the serial data input terminal SI of the RF receiver U1 according to the first wired communication signal; the RF receiver U1 converts the second wired communication signal into a first RF signal, and sends the first wired communication signal from the positive RF signal terminal RF_P of the RF receiver U1 and the negative RF signal terminal RF_N of the RF receiver U1. A radio frequency signal is sent to the positive radio frequency terminal RF_P of the range extender U2 and the negative radio frequency signal terminal RF_N of the range extender U2; the range extender U2 amplifies the first radio frequency signal to output a second radio frequency signal, and sends the second radio frequency signal from the antenna terminal ANT of the range extender U2 to the first end of the first inductor L1, the first end of the second inductor L2, the first end of the first capacitor C1 and the first end of the second capacitor C2; the first inductor L1, the second inductor L2, the third inductor L3, the first capacitor C1, the second capacitor C2, the third capacitor C1 and the fourth capacitor C4 perform impedance matching and filtering on the second radio frequency signal, and the antenna ANT converts the impedance matched and filtered second radio frequency signal into a wireless communication signal, and sends the wireless communication signal to the 3D glasses circuit 80 through the wireless communication link.

[0083] The 3D glasses circuit 80 operates according to the wireless communication signal and cooperates with the image displayed by the display circuit 90 to achieve a 3D display effect.

[0084] An embodiment of the present invention further provides an electronic device, which includes the above-mentioned 3D emission circuit.

[0085] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0086] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A 3D transmitting circuit, characterized in that: Connected to a display circuit for displaying an image according to a display signal, the 3D emission circuit includes: a first Ethernet circuit, configured to receive a first field synchronization signal and convert the first field synchronization signal into a first wired communication signal; a control circuit connected to the first Ethernet circuit and the display circuit, and configured to output a second wired communication signal and the display signal according to the first wired communication signal; a communication circuit, connected to the control circuit, and configured to convert the second wired communication signal into a first radio frequency signal; a power amplifier circuit, connected to the communication circuit, configured to amplify the first radio frequency signal to output a second radio frequency signal; The wireless transmitting circuit is connected to the power amplifier circuit, and is used to convert the second radio frequency signal into a wireless communication signal, and send the wireless communication signal to the 3D glasses circuit through a wireless communication link.

2. The 3D transmitting circuit according to claim 1, wherein: Connected to the 3D glasses circuit; The 3D glasses circuit is used to operate according to the wireless communication signal.

3. The 3D transmitting circuit according to claim 1, wherein: The control circuit is further configured to output a third wired communication signal according to the first wired communication signal; The 3D transmitting circuit further includes: The second Ethernet circuit is connected to the control circuit and is used to convert the third wired communication signal into a second field synchronization signal and send the second field synchronization signal to the next-stage 3D transmission circuit.

4. The 3D transmitting circuit according to claim 3, wherein: The first Ethernet circuit and the second Ethernet circuit are both 5G Ethernet circuits or Gigabit Ethernet circuits.

5. The 3D transmitting circuit according to claim 1, wherein: The control circuit is further configured to output a fourth wired communication signal according to the first wired communication signal; The 3D transmitting circuit further includes: A communication interface is connected to the control circuit, and is used to receive the fourth wired communication signal and forward the fourth wired communication signal to an external 3D transmitter.

6. The 3D transmitting circuit according to any one of claims 1 to 5, wherein: The communication circuit includes a radio frequency receiver; The serial communication clock terminal of the radio frequency receiver and the serial data input terminal of the radio frequency receiver serve together as the first wired communication signal input terminal of the communication circuit, and are connected to the control circuit to receive the first wired communication signal; The positive RF signal terminal of the RF receiver and the negative RF signal terminal of the RF receiver serve together as the first RF signal output terminal of the communication circuit, and are connected to the power amplifier circuit to output the first RF signal; The chip select terminal of the radio frequency receiver serves as a chip select signal input terminal of the communication circuit and is connected to the control circuit to receive the chip select signal.

7. The 3D transmitting circuit according to any one of claims 1 to 5, wherein: The power amplifier circuit includes a range extender; The positive RF terminal of the range extender and the negative RF signal terminal of the range extender serve together as a first RF signal input terminal of the power amplifier circuit, and are connected to the communication circuit to receive the first RF signal; The antenna end of the range extender serves as the second radio frequency signal output end of the power amplifier circuit and is connected to the wireless radio frequency circuit to output the second radio frequency signal.

8. The 3D transmitting circuit according to any one of claims 1 to 5, wherein: The wireless transmitting circuit includes a first inductor, a second inductor, a third inductor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor and an antenna; The first end of the first inductor, the first end of the second inductor, the first end of the first capacitor, and the first end of the second capacitor collectively serve as a second RF signal input end of the wireless transmitting circuit, and are connected to the power amplifier circuit to receive the second RF signal; The second end of the first inductor and the second end of the first capacitor are commonly connected to a first power supply; The second end of the second inductor is connected to the first end of the third inductor and the first end of the third capacitor, and the second end of the third inductor is connected to the first end of the fourth capacitor and the antenna; The second end of the second capacitor, the second end of the third capacitor, and the second end of the fourth capacitor C4 are commonly connected to the power ground.

9. The 3D transmitting circuit according to any one of claims 1 to 5, wherein: The control circuit includes a microprocessor; The first universal input / output terminal of the microprocessor and the second universal input / output terminal of the microprocessor serve together as the first wired communication signal input terminal of the control circuit, and are connected to the communication circuit to output the first wired communication signal; The third general input and output terminal of the microprocessor serves as the chip select signal output terminal of the control circuit and is connected to the communication circuit to output the chip select signal.

10. An electronic device, characterized in that: The electronic device comprises the 3D emission circuit according to any one of claims 1 to 9.

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