CN218824992U

CN218824992U - Accuse circuit and VR head mounted display in VR head mounted display's multi-functional compact

Info

Publication number: CN218824992U
Application number: CN202223496018.4U
Authority: CN
Inventors: 克劳斯·彼得森; 林焯华; 麦盛威; 冯业巨; 叶恢奕; 杨泓霖
Original assignee: Guangzhou Alubi Electronic Technology Co ltd
Current assignee: Guangzhou Alubi Electronic Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-04-07
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to a accuse circuit in multi-functional compact of VR wear-type display, it includes USB reposition of redundant personnel module, camera module, attitude sensor module and video processing module in the multi-functional compact of VR wear-type display, USB reposition of redundant personnel module includes USB interface and USB Hub chip, the USB interface with the input electricity of USB Hub chip is connected, the first end of USB Hub chip with the input electricity of camera module is connected, the second end of USB Hub chip with the input electricity of attitude sensor module is connected, the third end of USB Hub chip with the input electricity of video processing module is connected, the use of the reducible line of this application, can realize various data acquisition that the head display equipment needs such as attitude data, camera data, glasses through same USB mouth.

Description

Multi-functional compact well accuse circuit and VR head mounted display of VR head mounted display

Technical Field

The application relates to the technical field of attitude sensors, in particular to a multifunctional compact central control circuit of a VR head-mounted display.

Background

Virtual Reality (VR) is used more and more widely in entertainment, production or education nowadays, and thus, the demand for convenience of use of VR devices is also higher and higher.

Virtual reality systems are generally composed of source media, transmission media, and head mounted displays. The source medium is usually a host computer such as a personal computer, a game console or a mobile phone/tablet computer that can process a large amount of image and video data, and video frames from the source medium are transmitted to a video display unit, usually a head-mounted display, through a transmission medium (physical cable).

Furthermore, VR head-mounted displays are typically configured with a gesture sensor, as well as a camera interface, for detecting movement, rotation, acceleration, etc. of the user's head. Data from the sensors and cameras needs to be transferred to the source media for processing.

Current VR head-mounted displays require essentially four sets of wires for connecting the power supply, attitude sensor, camera and glasses, with possibly several more wires, e.g., the set of wires connecting the attitude sensor may include four wires in particular.

With virtual reality applications becoming mainstream in recent years, people increasingly want to transmit video, data and power through fewer connecting lines to pursue better user experience.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that prior art exists, this application provides accuse circuit and VR head mounted display in VR head mounted display's multi-functional compact, and the use of reducible line can realize various data acquisition that head display equipment needs such as gesture data, camera data, glasses through same USB mouth.

In a first aspect, the present application provides a multi-functional compact central control circuit of VR head-mounted display, which includes a USB shunt module, a camera module, an attitude sensor module and a video processing module, the USB shunt module includes a USB interface and a USB Hub chip, the USB interface with the input of the USB Hub chip is electrically connected, the first end of the USB Hub chip with the input of the camera module is electrically connected, the second end of the USB Hub chip with the input of the attitude sensor module is electrically connected, the third end of the USB Hub chip with the input of the video processing module is electrically connected.

Through the technical scheme, the USB interface is used for connecting a host, three paths of signals are communicated from the USB interface to the camera module, from the USB interface to the attitude sensor module and from the USB interface to the video processing module through shunting of the USB Hub chip, the attitude sensor module is used for connecting the attitude sensor, the camera module is used for connecting a camera, the video processing module is used for connecting head display equipment such as glasses, the host can acquire the three paths of signals through one USB interface, the use of connecting wires is further reduced, and various data acquisition needed by the head display equipment such as attitude data, camera data and glasses can be realized through the same USB interface.

As a preferred embodiment, the camera module includes a camera interface, the camera module further includes a monocular camera or a binocular camera, the first end of the USB Hub chip is electrically connected to the camera interface, and the output end of the camera interface is electrically connected to the monocular camera or the binocular camera.

Through the technical scheme, the camera interface can be connected with a monocular camera or a binocular camera as required, for example, the application environment is simple, and when fewer visible objects exist, the monocular camera with only one lens can be selected; and if the application environment is more complicated, especially when the visual object can dynamically change, a binocular camera with two lenses can be selected.

In a preferred embodiment, the video processing module comprises a USB to DP video data processing chip, a DP to MIPI video data processing chip, a plurality of display driving chips and their corresponding display screen interfaces or glasses interfaces,

the second end of the USB Hub chip is electrically connected with the first end of the USB-to-DP video data processing chip, the second end of the USB-to-DP video data processing chip is electrically connected with the first end of the DP-to-MIPI video data processing chip, the second end of the attitude sensor module is electrically connected with the third end of the USB Hub chip,

and the third end of the DP-to-MIPI video data processing chip is electrically connected with the first end of each display driving chip, and the second end of each display driving chip is electrically connected with each display screen interface or each glasses interface.

Through the technical scheme, the video signal transmitted through the USB interface can be converted into data which can be identified by the display screen. And simultaneously, the synchronous video display function of a plurality of display screens can be realized. In this application, utilize the vice screen of display screen interface electricity connection, utilize glasses interface electricity to connect glasses, can select display screen interface and glasses interface according to actual demand, or both select.

As a preferred embodiment, the video processing module further includes a main control chip, a first end of the main control chip is electrically connected to a third end of the USB to DP video data processing chip, and a second end of the main control chip is electrically connected to a fourth end of the DP to MIPI video data processing chip.

Through the above technical solution, the main control chip is mainly configured to control different video data processing chips, such as setting of image parameters and time synchronization, and is mainly used for configuration of the whole image stream.

As a preferred embodiment, the display driver chip includes a first display driver chip and a second display driver chip, and the display screen interface includes two glasses interfaces.

Through above technical scheme, if only need connect left glasses and right glasses, then only choose for use first display driver chip and second display driver chip to and two glasses interfaces, connect left glasses and right glasses to two glasses interfaces respectively, utilize first display driver chip and second display driver chip to drive two glasses work respectively.

As a preferred embodiment, the multifunctional compact central control circuit of the VR head-mounted display further includes a power module, where the power module includes a first power conversion module, a second power conversion module, a third power conversion module, a fourth power conversion module, and a fifth power conversion module, one end of the first power conversion module is electrically connected to the USB interface, the other end of the first power conversion module is electrically connected to a first power supply terminal of the DP-to-MIPI video data processing chip, one end of the second power conversion module is electrically connected to the USB interface, the other end of the second power conversion module is electrically connected to a second power supply terminal of the DP-to-MIPI video data processing chip, one end of the third power conversion module is electrically connected to the USB interface, the other end of the third power conversion module is electrically connected to a third power supply terminal of the DP-to-MIPI video data processing chip, and a power supply terminal of the main control chip, three power supply terminals of the fourth power conversion module are electrically connected to three power supply terminals of the first display driving chip, and three power supply terminals of the fifth power conversion module are electrically connected to a power supply terminal of the display driving chip, respectively.

Through the technical scheme, the voltage from the USB interface is converted into the voltage required by each chip by utilizing the five power conversion modules, so that power is supplied to each chip.

As a preferred embodiment, the display driver chip further includes a third display driver chip and a fourth display driver chip, the display interface further includes two sub-screen interfaces, the third display driver chip is electrically connected to one of the sub-screen interfaces, the fourth display driver chip is electrically connected to the other sub-screen interface, the multifunctional compact central control circuit of the VR head-mounted display further includes a power module, the power module includes a sixth power conversion module and a seventh power conversion module, one end of the sixth power conversion module is electrically connected to the USB interface, three power supply terminals of the sixth power conversion module are electrically connected to the third display driver chip, one end of the seventh power conversion module is electrically connected to the USB interface, and three power supply terminals of the seventh power conversion module are electrically connected to the fourth display driver chip.

Through the technical scheme, when two auxiliary screens need to be connected, a third display driving chip and a fourth display driving chip need to be added to drive the two auxiliary screens to work, and two power conversion modules need to be added, namely, the sixth power conversion module and the seventh power conversion module supply power to the third display driving chip and the fourth display driving chip.

In a second aspect, the present application provides a VR head mounted display that includes the multifunctional compact central control circuit described above.

The utility model provides a VR wear-type display only needs to be connected through a USB interface and host computer and can be through the reposition of redundant personnel of "USB Hub chip", can realize from USB interface to camera module, from the intercommunication of USB interface to attitude sensor module and from USB interface to video processing module total three routes signal, attitude sensor module is used for connecting attitude sensor, the camera module is used for connecting the camera, video processing module is used for connecting head display equipment such as glasses, make host computer accessible USB interface acquire three routes signal, and then realize reducing the use of line, can realize attitude data through same USB interface, camera data, various data acquisition that head display equipment such as glasses need.

In summary, the present application mainly includes the following beneficial technical effects:

(1) This application only needs to be connected through a USB interface and host computer can be through the reposition of redundant personnel of "USB Hub chip", can realize from USB interface to camera module, from USB interface to attitude sensor module and from the intercommunication of USB interface to video processing module total three routes signal, attitude sensor module is used for connecting attitude sensor, the camera module is used for connecting the camera, video processing module is used for connecting first apparent equipment such as glasses, make host computer accessible USB interface acquire three routes signal, and then realize reducing the use of line, can realize attitude data through same USB interface, camera data, various data acquisition that first apparent equipment such as glasses needs.

(2) The video signal transmitted by the USB interface can be converted into data which can be identified by the display screen. And simultaneously, the synchronous video display function of a plurality of display screens can be realized. In this application, utilize the vice screen of display screen interface electricity connection, utilize glasses interface electricity to connect glasses, can select display screen interface and glasses interface according to actual demand, or both select.

(3) All the modules are supplied with power through the same USB interface.

Drawings

FIG. 1 is a circuit block diagram of embodiment 1;

FIG. 2 is a circuit block diagram of embodiment 2;

FIG. 3 is a block diagram of a power supply of embodiment 2;

FIG. 4 is a circuit diagram of a USB interface, a camera interface, and a USB to DP video data processing chip of embodiment 2;

FIG. 5 is a circuit diagram of a USB Hub chip and attitude sensor of embodiment 2;

fig. 6 is a circuit diagram of a DP-to-MIPI video data processing chip of embodiment 2;

FIG. 7 is a circuit diagram of a main control chip of embodiment 2;

fig. 8 is a circuit diagram of a second display driving chip of embodiment 2;

fig. 9 is a circuit diagram of a third display driver chip of embodiment 2;

fig. 10 is a circuit diagram of a first display driver chip and a fourth display driver chip of embodiment 2;

fig. 11 is a circuit diagram of a first power conversion module, a second power conversion module, and a third power conversion module of embodiment 2;

fig. 12 is a circuit diagram of a fourth power conversion module and a fifth power conversion module of embodiment 2.

Description of reference numerals: the display device comprises a USB interface 1, a camera interface 2, a USB-to-DP video data processing chip 3, a USB Hub chip 4, an attitude sensor 5, a DP-to-MIPI video data processing chip 6, a main control chip 7, a first display driving chip 8, a second display driving chip 9, a third display driving chip 10, a fourth display driving chip 11, a first power conversion module 12, a second power conversion module 13, a third power conversion module 14, a fourth power conversion module 15 and a fifth power conversion module 16.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments.

Example 1.

The multifunctional compact central control circuit of the VR head-mounted display provided by this embodiment, as shown in fig. 1, includes a USB shunt module, a camera module, an attitude sensor 5 module, and a video processing module, where the USB shunt module includes a USB interface 1 and a USB Hub chip 4, the USB interface 1 is electrically connected to an input terminal a of the USB Hub chip 4, a first terminal B of the USB Hub chip 4 is electrically connected to an input terminal of the camera module, a second terminal C of the USB Hub chip 4 is electrically connected to an input terminal of the attitude sensor 5 module, and a third terminal D of the USB Hub chip 4 is electrically connected to an input terminal of the video processing module.

Connect the host computer through USB interface 1, through the reposition of redundant personnel of "USB Hub chip", can realize from USB interface 1 to camera module, from USB interface 1 to attitude sensor 5 module and from USB interface 1 to the intercommunication of the total three routes signal of video processing module, attitude sensor 5 module is used for connecting attitude sensor 5, the camera module is used for connecting the camera, video processing module is used for connecting the first apparent equipment such as glasses, make host computer accessible USB interface 1 acquire three routes signal, and then realize reducing the use of line, can realize gesture data through same USB interface, camera data, various data acquisition that first apparent equipment such as glasses needs.

Example 2.

The other structure of this embodiment is the same as embodiment 1, except that: as shown in fig. 2, the camera module includes a camera interface 2, and the camera module further includes a monocular camera or a binocular camera, the first end a of the USB Hub chip 4 is electrically connected to the camera interface 2, and the output end of the camera interface 2 is electrically connected to the monocular camera.

The camera interface 2 can be connected with a monocular camera or a binocular camera as required, for example, the application environment is simpler, and when the number of visible objects is small, the monocular camera with only one lens can be selected; and if the application environment is more complicated, especially when the visual object can change dynamically, then can choose the binocular camera that contains two camera lenses, and this embodiment uses the monocular camera.

Specifically, the video processing module comprises a USB-to-DP video data processing chip 3, a DP-to-MIPI video data processing chip 6, a plurality of display driving chips and corresponding display screen interfaces or glasses interfaces,

the second end B of the USB Hub chip 4 is electrically connected with the first end A of the USB-to-DP video data processing chip 3, the second end B of the USB-to-DP video data processing chip 3 is electrically connected with the first end A of the DP-to-MIPI video data processing chip 6, the second end B of the attitude sensor 5 module is electrically connected with the third end C of the USB Hub chip 4,

and a third end C of the DP-to-MIPI video data processing chip 6 is electrically connected with a first end A of each display driving chip, and a second end B of each display driving chip is electrically connected with each display screen interface or glasses interface.

The embodiment can realize that the video signal transmitted by the USB interface 1 is converted into data which can be identified by the display screen. And simultaneously, the synchronous video display function of a plurality of display screens can be realized. In this application, utilize the vice screen of display screen interface electricity connection, utilize glasses interface electricity to connect glasses, can select display screen interface and glasses interface according to actual demand, or both select.

Specifically, the video processing module further comprises a main control chip, a first end a of the main control chip is electrically connected with a third end C of the USB-to-DP video data processing chip 3, a second end B of the main control chip is electrically connected with a fourth end D of the DP-to-MIPI video data processing chip 6, and the third end C of the main control chip is electrically connected with a third end C of the driving chip respectively.

The main control chip is arranged to control different video data processing chips, such as setting of image parameters, time synchronization and the like, and is mainly used for configuration of the whole image stream.

Specifically, the display driving chip includes a first display driving chip 8 (display driving chip 1) and a second display driving chip 9 (display driving chip 2), and the display screen interface includes two glasses interfaces.

If only need connect left glasses and right glasses, only select for use first display driver chip 8 and second display driver chip 9 to and two glasses interfaces, connect left glasses and right glasses to two glasses interfaces respectively, utilize first display driver chip 8 and second display driver chip 9 to drive two glasses work respectively.

Specifically, as shown in fig. 3 and fig. 4, the multifunctional compact central control circuit of the VR head-mounted display further includes a power module, the power module includes a first power conversion module 12, a second power conversion module 13, a third power conversion module 14, a fourth power conversion module 15 and a fifth power conversion module 16, one end of the first power conversion module 12 is electrically connected to the USB interface 1, the other end of the first power conversion module 12 is electrically connected to the first power supply terminal of the DP-to-MIPI video data processing chip 6, one end of the second power conversion module 13 is electrically connected to the USB interface 1, the other end of the second power conversion module 13 is electrically connected to the second power supply terminal of the DP-to-MIPI video data processing chip 6, one end of the third power conversion module 14 is electrically connected to the USB interface 1, the other end of the third power conversion module 14 is electrically connected to the third power supply terminal of the DP-to-MIPI video data processing chip 6, the DP-to-MIPI video data processing chip 6 and the power supply terminal of the main control chip, the power conversion module 15 is electrically connected to the third power supply terminal of the DP-to-MIPI video data processing chip 6, and the power conversion module 15 is electrically connected to the third power supply terminal of the display driver chip, and the fifth power conversion module 16 are electrically connected to the third power conversion module.

The present embodiment utilizes five power conversion modules to convert the voltage from the USB interface 1 into the voltage required by each chip, thereby supplying power to each chip.

In this embodiment, as shown in fig. 4, the USB interface 1 is a USB-C interface, the chip U18 is a USB to DP video data processing chip 3, the model is ANX7327, and the U6 is the camera interface 2.

As shown in fig. 5, the chip U20 is a USB Hub chip 4, model GL850G, and the chips U21 and U22 are attitude sensors 5.

As shown in fig. 6, the chip U23 is a DP to MIPI video data processing chip 6, model ANX7539.

As shown in fig. 7, the chip U30 is a main control chip 7, and has a model number of STM32F401CCU6.

As shown in fig. 8, U24 is the second display driving chip 9, as shown in fig. 9, U25 is the third display driving chip 10, as shown in fig. 10, U26 is the first display driving chip 8, and U27 is the fourth display driving chip 11.

The above modules are described as follows:

1. and a power management module. The part mainly comprises a USB-C interface and a power supply module, wherein a power supply entering through the USB-C interface is converted into an input power supply required by other modules of the system through the power supply module, and then the power supply of the whole system is provided. In addition, the power supply module also comprises protection circuits such as reverse connection protection, overcurrent protection and the like, and the protection circuits are used as a power supply protection part of the whole system.

And 2, the USB shunting module. The part mainly comprises a USB-C interface and a USB Hub chip. Through the shunting of the USB Hub chip, three paths of signals from the USB-C interface to the camera module, from the USB-C interface to the attitude sensor 5 module and from the USB-C interface to the video processing module can be communicated.

3. A camera module. The part mainly comprises a camera interface 2, a monocular camera and a binocular camera. And the data acquired by the camera is transmitted to the host computer through the USB-C interface for processing. In addition, the camera interface 2 can be connected with a monocular camera or a binocular camera as required, for example, the application environment is simpler, and a camera module with only one lens can be selected when the number of visible objects is small; and if the application environment is more complicated, especially when the visual object can dynamically change, a binocular camera module with two lenses can be selected to be matched with a corresponding algorithm for use.

4. And an attitude sensor 5 module. The part, namely the attitude sensor 5, is mainly used for acquiring attitude data of the head display equipment and transmitting the attitude data to the host computer for processing through the USB-C interface.

5. And a video processing module. The part mainly comprises a USB-to-DP video data processing chip 3, a DP-to-MIPI video data processing chip 6, a main control chip, a plurality of display driving chips and corresponding display screen interfaces. The module can realize that the video signal transmitted by the USB-C interface is converted into data which can be identified by the display screen. And simultaneously, the synchronous video display function of a plurality of display screens can be realized. In this embodiment, according to actual requirements, only two paths of display outputs of the display driving chip 2 to the glasses interface (left) and the display driving chip 3 to the glasses interface (right) are adopted; the output functions of the other two screens can be added and used as required.

The signal connections are illustrated as follows:

1. video data sent by a host is transmitted to a USB-to-DP video data processing chip 3 through a USB-C interface and a USB Hub chip, DP signals are transmitted to a DP-to-MIPI video data processing chip 6 through the chip and are converted into video data which can be recognized by a display, and finally the video data are transmitted to a display screen end through a display driving chip.

"main control chip" and "DP changes MIPI video data processing chip 6" all select the chip that has the multichannel signal foot for use, and then the video data display of steerable multichannel of mutually supporting. In this embodiment, at most four channels of video data display can be supported.

3. In this embodiment, a connector that can be connected to a camera is also mounted, and is used for mounting the camera module. The data of the camera can be directly acquired through the same USB-C interface and used as data for providing analysis of a host.

4. In this embodiment, one attitude sensor 5 unit is simultaneously mounted, and sensor data can be acquired through the same USB-C interface and also used as data for providing host analysis.

As shown in fig. 11, chips U29 and U30 constitute the third power conversion module 14, chips U31 and U32 constitute the second power conversion module 13, chips U33 and U34 constitute the first power conversion module 12, and as shown in fig. 12, chips U38 and U39 constitute the fourth power conversion module 15, and chips U40 and U41 constitute the fifth power conversion module 16.

The power supplies of all relevant chips of the camera module, the attitude sensor 5 module and the video conversion module of the embodiment are all provided through one USB-C port.

The embodiment integrates input end data (data of the camera and data of the attitude sensor 5) and output end conversion (video data is transmitted to the display screen through the USB) required by the head display equipment, and supports at most four ways of display, and the modules are connected and powered through the same USB-C port.

In summary, the present embodiment has the following advantages:

1. the conversion control of the multi-path video data stream is realized through a single USB port, and the output of the 4-channel video data stream can be realized at most simultaneously.

2. The data input of the camera is integrated on the same USB port, namely, the host can acquire the data of the camera through a single USB port.

3. The data input of the attitude sensor 5 is integrated on the same USB port, namely the host can acquire the attitude data of the head display equipment through a single USB port.

4. All modules are supplied with power through the same USB port.

Example 3.

The other structure of this embodiment is the same as embodiment 2, except that: display driver chip still includes third display driver chip 10 (display driver chip 3) and fourth display driver chip 11 (display driver chip 4), the display interface still includes two vice screen interfaces, third display driver chip 10 is connected with one of them vice screen interface electricity, fourth display driver chip 11 is connected with another vice screen interface electricity, VR head-mounted display's multi-functional compact well accuse circuit still includes power module, power module includes sixth power conversion module and seventh power conversion module, the one end of sixth power conversion module with USB interface 1 electricity is connected, the three feeder ear of sixth power conversion module with third display driver chip 10 electricity is connected, the one end of seventh power conversion module with USB interface 1 electricity is connected, the three feeder ear of seventh power conversion module with fourth display driver chip 11 electricity is connected.

In this embodiment, when two sub-screens need to be connected, a third display driving chip 10 and a fourth display driving chip 11 need to be added to drive the two sub-screens to work, and two power conversion modules need to be added at the same time, that is, the sixth power conversion module and the seventh power conversion module supply power to the third display driving chip 10 and the fourth display driving chip 11.

Example 4.

The VR head mounted display provided by this embodiment includes the multifunctional compact central control circuit described in any of the above embodiments.

The VR head-mounted display of this embodiment only needs to be connected through USB interface 1 and host computer and can be through the reposition of redundant personnel of "USB Hub chip", can realize from USB interface 1 to camera module, from the intercommunication of USB interface 1 to attitude sensor 5 module and from USB interface 1 to video processing module total three routes signal, attitude sensor 5 module is used for connecting attitude sensor 5, the camera module is used for connecting the camera, video processing module is used for connecting head display equipment such as glasses, make host computer accessible USB interface 1 acquire three routes signal, and then realize reducing the use of line, can realize attitude data through same USB interface, camera data, various data acquisition that head display equipment such as glasses need.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

Accuse circuit in multi-functional compact of VR head mounted display, its characterized in that: including USB reposition of redundant personnel module, camera module, attitude sensor module and video processing module, USB reposition of redundant personnel module includes USB interface (1) and USB Hub chip (4), USB interface (1) with the input electricity of USB Hub chip (4) is connected, the first end of USB Hub chip (4) with the input electricity of camera module is connected, the second end of USB Hub chip (4) with the input electricity of attitude sensor module is connected, the third end of USB Hub chip (4) with the input electricity of video processing module is connected.
2. The multi-functional compact centering circuit of a VR head-mounted display of claim 1, wherein: the camera module comprises a camera interface (2), the camera module further comprises a monocular camera or a binocular camera, the first end of the USB Hub chip (4) is electrically connected with the camera interface (2), and the output end of the camera interface (2) is electrically connected with the monocular camera or the binocular camera.
3. The multi-functional compact centering circuit of the VR head-mounted display of claim 2, wherein: the video processing module comprises a USB-to-DP video data processing chip (3), a DP-to-MIPI video data processing chip (6), a plurality of display driving chips and corresponding display screen interfaces or glasses interfaces,

the second end of the USB Hub chip (4) is electrically connected with the first end of the USB-to-DP video data processing chip (3), the second end of the USB-to-DP video data processing chip (3) is electrically connected with the first end of the DP-to-MIPI video data processing chip (6), the second end of the attitude sensor module is electrically connected with the third end of the USB Hub chip (4),

and a third end of the DP-to-MIPI video data processing chip (6) is electrically connected with a first end of each display driving chip, and a second end of each display driving chip is electrically connected with each display screen interface or glasses interface.
4. The multi-functional compact centering circuit of the VR head mounted display of claim 3, wherein: the video processing module further comprises a main control chip (7), the first end of the main control chip (7) is electrically connected with the third end of the USB-to-DP video data processing chip (3), and the second end of the main control chip (7) is electrically connected with the fourth end of the DP-to-MIPI video data processing chip (6).
5. The multi-functional compact centering circuit of the VR head mounted display of claim 4, wherein: the display driving chip comprises a first display driving chip (8) and a second display driving chip (9), and the display screen interface comprises two glasses interfaces.
6. The multi-functional compact centering circuit of the VR head mounted display of claim 5, wherein: the multifunctional compact central control circuit of the VR head-mounted display further comprises a power module, the power module comprises a first power conversion module (12), a second power conversion module (13), a third power conversion module (14), a fourth power conversion module (15) and a fifth power conversion module (16), one end of the first power conversion module (12) is electrically connected with the USB interface, the other end of the first power conversion module (12) is electrically connected with a first power supply end of the DP-to-MIPI video data processing chip (6), one end of the second power conversion module (13) is electrically connected with the USB interface, the other end of the second power conversion module (13) is electrically connected with a second power supply end of the DP-to-MIPI video data processing chip (6), one end of the third power conversion module (14) is electrically connected with the USB interface, the other end of the third power conversion module (14) is electrically connected with a third power supply end of the DP-to-I video data processing chip (6), the power-to-I video data processing chip (6) and a master control chip (7), the third power supply end of the power conversion module (7) is electrically connected with a third power supply end of the power conversion module (8), and the third power conversion module (7) is electrically connected with a third power supply end of the display chip (16), and the third power conversion module (9) and the display chip.
7. The multi-functional compact centering circuit of the VR head mounted display of claim 5, wherein: the display driving chip further comprises a third display driving chip (10) and a fourth display driving chip (11), the display screen interface further comprises two auxiliary screen interfaces, the third display driving chip (10) is electrically connected with one of the auxiliary screen interfaces, the fourth display driving chip (11) is electrically connected with the other auxiliary screen interface, the multifunctional compact central control circuit of the VR head-mounted display further comprises a power module, the power module comprises a sixth power conversion module and a seventh power conversion module, one end of the sixth power conversion module is electrically connected with the USB interface, three power supply ends of the sixth power conversion module are electrically connected with the third display driving chip (10), one end of the seventh power conversion module is electrically connected with the USB interface, and three power supply ends of the seventh power conversion module are electrically connected with the fourth display driving chip (11).
8 VR head mounted display, its characterized in that: comprising a multifunctional compact central control circuit according to any of claims 1 to 7.