CN211406156U - Device for watching multi-channel 3D video through on-screen display - Google Patents

Abstract

The utility model discloses a with screen display watch multichannel 3D video's device. The device of the utility model comprises a video source time division multiplexing frequency multiplier, a video frame rate lifting module, a video signal display module, a multi-channel 3D synchronous signal generating and sending module and a multi-channel 3D synchronous watching module; the multichannel 3D synchronous watching module comprises a multichannel 3D synchronous signal receiving module, a multichannel 3D left-eye video selective watching module and a multichannel 3D right-eye video selective watching module. The utility model is suitable for a video display system contains single screen and concatenation screen system, can show multichannel 3D video content simultaneously at same display area, has many people and watches different 3D content or single fast switch over watch advantages such as different 3D video content simultaneously.

Description

Device for watching multi-channel 3D video through on-screen display

Technical Field

The utility model relates to a multichannel shows technical field, especially relates to a device that multichannel 3D video was watched in demonstration with the screen.

Background

In a video display system, one display area can display only one kind of 3D content at a time. If a plurality of people need to watch different contents at the same time, a display area is divided into different sub-areas to display different contents, or the display area is negotiated to be used according to time intervals. This approach has several drawbacks:

a) viewers interfere with each other, increasing management cost;

b) information security cannot be guaranteed;

c) the resolution ratio is sacrificed when the display area is divided, or a larger display system needs to be built, so that the equipment cost is increased;

d) only 2D video can be viewed, and multiple 3D video signals cannot be viewed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a device for watching multi-channel 3D videos by displaying on the same screen. The utility model discloses a device can effectively utilize the region of physical display, shows multichannel 3D video content simultaneously in same display area for different viewers can see different video content or single fast switch over can watch different 3D video content in same physical area, have had multichannel display system's economic nature, information security and flexibility concurrently. .

The technical scheme of the utility model specifically introduces as follows.

A device for watching multi-channel 3D video by on-screen display comprises a video source time division multiplexing frequency multiplier and a video frame rate

The system comprises a lifting module, a video signal display module, a multi-channel 3D synchronous signal generating and sending module and a multi-channel 3D synchronous watching module; different video sources are divided into two paths after being sequentially connected with a video source time division multiplexing frequency multiplier and a video frame rate improving module, one path is connected with a video signal display module, and the other path is sequentially connected with a multichannel 3D synchronous signal generating and sending module and a multichannel 3D synchronous watching module; wherein: the multi-channel 3D synchronous watching module comprises a multi-channel 3D synchronous signal receiving module, a multi-channel 3D left eye video selective watching module and a multi-channel 3D right eye video selective watching module; the input end of the multichannel 3D synchronous signal receiving module is connected with the multichannel 3D synchronous signal generating and sending module, and the output end of the multichannel 3D synchronous signal receiving module is respectively connected with the multichannel 3D left-eye video selective watching module and the multichannel 3D right-eye video selective watching module.

The utility model discloses in, the display device that video signal display module adopted is LED screen, LCD screen, DLP screen or projection.

The utility model discloses in, interface that multichannel 3D synchronizing signal produced sending module transmission synchronizing signal and adopted is wired to connect

A port or a wireless interface.

In the utility model, the wired interface is selected from any one of 3D-sync, RS232, RS485, Ethernet port or optical port; the wireless interface is selected from any one of Bluetooth, Wifi or Zigbee.

The utility model discloses in, the form that module was watched in step to multichannel 3D is shutter glasses, electricity accent glass screen or helmet.

Compared with the prior art, the beneficial effects of the utility model reside in that: the method is suitable for video display systems (including single-screen display and large-screen splicing systems), and can effectively utilize the physical display area. The multichannel 3D video is played in a time-sharing mode among frames, channel numbers are synchronously generated to the watching module, the watching module selects to open a left-eye or right-eye watching channel when a channel to be watched is displayed according to user setting, and closes the watching channel at other time, so that a video channel selected by a viewer independently or a channel currently watched by an administrator is configured uniformly by the viewer, and different viewers can see different video contents in the same physical area. The utility model discloses economic nature, information security and the flexibility of multichannel display system have been compromise.

Drawings

Fig. 1 is the utility model discloses a with the structural block diagram of the device that the screen display watched multichannel 3D video.

Fig. 2 is a block diagram of an apparatus for viewing multi-channel 3D video on a same screen display in an embodiment.

FIG. 3 is an illustration of time slots of a time division multiplexing multiplier for a video source.

Fig. 4 is a time slot diagram of the video source time division multiplexing frequency multiplier in embodiment 1.

Reference numbers in the figures: a 1-video source time division multiplexing frequency multiplier, a 2-video frame rate lifting module, a 3-video signal display module, a 4-multichannel 3D synchronous signal generating and sending module, a 5-multichannel 3D synchronous watching module, a 51-multichannel 3D synchronous signal receiving module, a 52-multichannel 3D left eye video selective watching module, a 53-multichannel 3D right eye video selective watching module,

54-synchronous shutter glasses.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and embodiments.

Example 1

Fig. 1 is a block diagram of a device for displaying and watching multi-channel 3D video on the same screen according to the present invention; as shown in fig. 1, the apparatus includes a video source time division multiplexing frequency multiplier 1, a video frame rate up-conversion module 2, a video signal display module 3, a multi-channel 3D synchronization signal generation and transmission module 4, and a multi-channel 3D synchronization viewing module 5; different video sources V₁~V_nThe video source time division multiplexing frequency multiplier 1 and the video frame rate improving module 2 are connected in sequence and then divided into two paths, one path is connected with the video signal display module 3, and the other path is connected with the multichannel 3D synchronous signal generating and sending module 4 and the multichannel 3D synchronous watching module 5 in sequence; the display devices adopted by the video signal display module 3 include, but are not limited to, LED screens, LCD screens, DLP screens, projection, and the like. The interface adopted by the multichannel 3D synchronous signal generation and transmission module for transmitting the synchronous signals is a wired interface or a wireless interface; the wired interface includes, but is not limited to, 3D-sync, RS232, RS485, ethernet port, or optical port, and the wireless interface includes, but is not limited to, bluetooth, Wifi, or Zigbee.

The multi-channel 3D synchronous viewing module 5 comprises a multi-channel 3D synchronous signal receiving module 51, a multi-channel 3D left eye video selective viewing module 52 and a multi-channel 3D right eye video selective viewing module 53 which can independently control switches; the input end of the multi-channel 3D synchronization signal receiving module 51 is connected to the multi-channel 3D synchronization signal generating and transmitting module 4, and the output end is connected to the multi-channel 3D left eye video selective viewing module 52 and the multi-channel 3D right eye video selective viewing module 53, respectively. The form of the multi-channel 3D synchronous viewing module 5 includes, but is not limited to, shutter glasses, electrically-adjusted glass screens, helmets, and the like.

The video source time division multiplexing frequency multiplier 1 adds protection time slots between different channels, the video channel switching of the multi-channel 3D left-eye video selective viewing module 52 and the multi-channel 3D right-eye video selective viewing module 53 is performed in the protection time slots, the switching time can be adjusted, and fig. 3 provides an alternative implementation scheme.

Example 1

Fig. 2 is a block diagram showing the structure of an apparatus for viewing multi-channel 3D video in the on-screen display in embodiment 1. The structure and function of each part are as follows:

A. video source time division multiplexing frequency multiplier 1, time division multiplexing video frames of multi-path 3D video channel (frame continuous)

Combining into a path of signal; the video source time division multiplexing frequency multiplier 1 can add protection time slots between different channels, and the time of the protection time slots can be adjusted, in a specific way as shown in fig. 4; the video source time division multiplexing frequency multiplier 1 can be realized by a RapidIO second generation exchange chip-NRS 1800;

B. the video frame rate increasing module 2 is used for increasing the frame rate of the multichannel multiplexing video signals generated by the video source time division multiplexing frequency multiplier 1 to a value which can meet the requirement of human eyes to watch; generating time-synchronized video channel number information at the same time; the video frame rate improving module 2 can adopt modes such as copying or interpolation to improve the video frame rate to a frame rate suitable for human eyes to watch; the video frame rate up-conversion module 2 can be realized by a CV2880 video processing chip;

C. the video signal display module 3 is responsible for displaying the video signal generated by the video frame rate improving module 2; it is achieved by ITE 6613;

D. the multi-channel 3D synchronous signal generating and sending module 4 generates, according to the multi-channel synchronous signal generated by the video frame rate improving module 2,

generating a multi-channel synchronous transmission sequence, and sending the multi-channel synchronous transmission sequence to a wireless transmission channel through Bluetooth; the sequence is as follows:

{ …,1 left eye, 1 right eye, …, M left eye, M right eye, … };

the multi-channel 3D synchronization signal generation and transmission module 4 may be implemented by a bluetooth chip CC 1352R;

E. the synchronous shutter glasses 54 receive the multi-channel 3D synchronization signal, generate the multi-channel 3D synchronization transmission sequence sent by the sending module 4, and convert the multi-channel 3D synchronization transmission sequence into a time division channel switching signal, so as to open or close the optical channel to be viewed according to the time division channel switching signal. The specific method comprises the following steps: assuming that the L-th channel left eye is viewed, the switches are as follows:

{ left-eye channel 1 off, …, left-eye channel L on, …, left-eye channel M off }, and { right-eye channel all off };

assuming that the L-th channel right eye is viewed, the switches are as follows:

{ right-eye channel 1 off, …, right-eye channel L on, …, right-eye channel M off }, { left-eye channel fully off };

in the embodiment, the multichannel 3D video is played in a time-sharing manner among frames, and the 3D channel numbers are synchronously generated for the multiple channels

The 3D synchronous watching module 5 is characterized in that the multichannel 3D synchronous watching module 5 opens the watching channel when the channel to be watched is displayed according to the user setting, and closes the watching channel at other time, so that the video channel selected by the watcher independently to watch or the channel currently watched by the watcher is uniformly configured by the administrator, and different watchers can watch different video contents in the same physical area.

Compared with the prior art, the beneficial effects of the utility model reside in that: the method is suitable for video display systems (including single-screen display and large-screen splicing systems), can effectively utilize physical display areas, and can simultaneously display multi-channel 3D video contents in the same display area. The utility model discloses economic nature, information security and the flexibility of multichannel 3D display system have been compromise.

It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (5)

1. A device for watching multi-channel 3D video by on-screen display is characterized in that the device comprises a video source time division multiplexing frequency multiplier

(1) The device comprises a video frame rate improving module (2), a video signal display module (3), a multi-channel 3D synchronous signal generating and sending module (4) and a multi-channel 3D synchronous watching module (5); different video sources are divided into two paths after being sequentially connected with a video source time division multiplexing frequency multiplier (1) and a video frame rate improving module (2), one path is connected with a video signal display module (3), and the other path is sequentially connected with a multichannel 3D synchronous signal generating and sending module (4) and a multichannel 3D synchronous watching module (5); wherein: the multi-channel 3D synchronous watching module (5) comprises a multi-channel 3D synchronous signal receiving module (51), a multi-channel 3D left eye video selective watching module (52) and a multi-channel 3D right eye video selective watching module (53); the input end of the multichannel 3D synchronous signal receiving module (51) is connected with the multichannel 3D synchronous signal generating and sending module (4), and the output end of the multichannel 3D synchronous signal receiving module is respectively connected with the multichannel 3D left eye video selective watching module (52) and the multichannel 3D right eye video selective watching module (53).

2. The apparatus for on-screen display viewing of multi-channel 3D video of claim 1, wherein the video signal displays

The display device adopted by the display module (3) is an LED screen, an LCD screen, a DLP screen or a projection.

3. The apparatus for on-screen display viewing of multi-channel 3D video of claim 1, wherein multi-channel 3D video

The interface adopted by the synchronous signal generating and sending module (4) for transmitting the synchronous signal is a wired interface or a wireless interface.

4. The apparatus for on-screen display viewing of multi-channel 3D video according to claim 3, wherein the wired interface is selected

Any one of 3D-sync, RS232, RS485, Ethernet port or optical port; the wireless interface is selected from any one of Bluetooth, Wifi or Zigbee.

5. The apparatus for on-screen display viewing of multi-channel 3D video of claim 1, wherein multi-channel 3D video

The synchronous watching module (5) is in the form of shutter glasses, an electric adjusting glass screen or a helmet.

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