KR20230172688A - system for providing shutter grass type stereovision - Google Patents

Abstract

The present invention relates to a shutter glass type three-dimensional image providing system, and more specifically, to a display device (10) that outputs a left-eye image, a right-eye image, and synchronization optical signals corresponding to the left-eye image and the right-eye image at a specific location on the screen. ), a relay module 50 and a relay module 50 that are installed on the edge of the display device and receive synchronizing optical signals output from the screen of the display device, code them into left-eye video and right-eye video synchronization signals, and transmit them to the shutter glass. A shutter glass method that allows viewing stereoscopic images through a typical display device that does not have a separate control unit for providing stereoscopic images, including a shutter glass 200 that controls the left-eye shutter and right-eye shutter according to signals transmitted from the camera. It relates to a stereoscopic image provision system.

Description

System for providing shutter grass type stereovision}

The present invention relates to a shutter glass type three-dimensional image providing system, and more specifically, to a display device and display that outputs a left-eye image, a right-eye image, and synchronization optical signals corresponding to the left-eye image and the right-eye image at a specific location on the screen. A shutter glass-type stereoscopic image provision system that can provide stereoscopic images using a relay module that receives synchronizing optical signals output from the device's screen, codes them into left-eye image and right-eye image synchronization signals, and transmits them to the shutter glass. It's about.

Recently, the development of 3D televisions, which provide television images in 3D to users, is actively underway. Methods for implementing 3D images can be broadly divided into those that involve wearing glasses and those that do not wear glasses.

The methods of wearing glasses are the anaglyph type, which uses blue and red colored glasses for each eye, the polarized type, which uses polarized glasses with different polarization directions for each eye, and the shutter glass type, which uses glasses with a liquid crystal shutter (or time-sharing shutter type). etc. are known.

In the case of a shutter glass-type stereoscopic image provision system, the display device quickly alternately outputs images for the left eye and images for the right eye on one screen. In order to implement this in three dimensions, the image for the left eye output from the display device must be replaced by the shutter glass. By opening only the left eye shutter and opening only the right eye shutter of the shutter glass for the right eye image, a stereoscopic image is realized using binocular parallax.

In other words, a three-dimensional display device using the shutter glass method quickly displays images for the left eye and images for the right eye, and synchronizes the opening and closing of the left and right eye shutters of the shutter glass according to the alternating timing of the left and right eye images. something is needed As this synchronization method, a method of synchronizing the shutter glass to an IR (Infra Red) signal transmitted from a display device is mainly used.

For example, Figure 1 is a configuration diagram showing an example of a conventional stereoscopic image providing system, and Figure 2 is a perspective view showing an example of a shutter glass used in a conventional stereoscopic image providing system.

As shown, the conventional shutter glass includes a left eye shutter 210, a right eye shutter 220, an IR receiver 230, a shutter driver, and a power source. The IR receiver 230 receives an IR type synchronization signal transmitted from the display device, and the shutter driver turns on/off the liquid crystals of the left eye shutter 210 and the right eye shutter 220 respectively in response to the received synchronization signal. By turning it off, the liquid crystals of the left eye shutter 210 and the right eye shutter 220 are opened and closed, allowing three-dimensional images to be viewed.

However, the conventional shutter glass-type stereoscopic image provision system requires a control unit to generate a synchronization signal based on the left-eye image and a right-eye image inside the display device, and an IR synchronization signal transmitter must be installed to transmit this to the shutter glass. In order to watch stereoscopic images, there was a problem that a dedicated display device that could provide stereoscopic images had to be purchased.

Republic of Korea Patent Publication No. 10-1008687 (Title of invention: IR receiving device and liquid crystal shutter-type stereoscopic glasses equipped therewith) Republic of Korea Patent Publication No. 10-2011-0130708 (Title of invention: 3D glasses and 3D display device) Republic of Korea Patent Publication No. 10-1063478 (Title of invention: Device and method for providing three-dimensional images using glasses) Republic of Korea Patent Publication No. 10-2011-0098253 (Title of invention: Display system and control method thereof)

The present invention was made to solve the problems of the prior art, and the main purpose of the present invention is to provide stereoscopic images using an existing display device using a simple relay module without using a dedicated display device capable of providing stereoscopic images. The goal is to provide a three-dimensional image provision system using a shutter glass method.

In addition, the present invention is a shutter glass that allows easy viewing of three-dimensional images by transmitting optical signals for synchronization of the left-eye image and right-eye image output from the screen of the display device to the shutter glass using a relay module installed on the edge of the display device. Provides a three-dimensional image provision system.

As a means to achieve the object of the present invention, a shutter glass type three-dimensional image providing system includes a display device that outputs a left-eye image, a right-eye image, and synchronization optical signals corresponding to the left-eye image and the right-eye image at a specific location on the screen. ;

A relay module installed on the edge of the display device and receiving a synchronizing optical signal output from the screen of the display device, coding it into a left-eye image and a right-eye image synchronization signal and transmitting it to the shutter glass; and

A shutter glass that controls the opening and closing of the left eye shutter and the right eye shutter according to the signal transmitted from the relay module. d

In the present invention, the display device alternately outputs left-eye image frames and right-eye image frames, and also displays and outputs a synchronization optical signal at a specific position on the screen to correspond to the left-eye image frame and the right-eye image frame.

In the display device, a synchronizing optical signal display unit that displays a synchronizing optical signal to correspond to the left eye image frame and the right eye image frame is formed at a specific position close to the edge of the screen.

The synchronization optical signal display unit outputs a visible light signal.

The relay module includes a synchronization optical signal receiver installed at a synchronization optical signal output position of the display device to receive a synchronization optical signal;

a synchronization signal transmitting unit that transmits a synchronization signal for the left eye and a synchronization signal for the right eye toward the shutter glass;

and a driving/control unit that drives the synchronization signal transmitter to output the corresponding synchronization signal after determining whether the optical signal received through the synchronization optical signal receiver is a left-eye synchronization optical signal or a right-eye synchronization optical signal.

The synchronization signal transmitted through the synchronization signal transmitter is a synchronization IR signal.

The relay module includes a case having an insertion portion so that it can be installed by hanging on the edge of the display device; Includes a fixing bolt that allows easy fixation to the display device.

The shutter glass includes a synchronization signal receiver that receives a synchronization signal transmitted wired or wirelessly from the relay module, and whether the synchronization signal received through the synchronization signal receiver is a left-eye synchronization signal or a right-eye synchronization signal. After determining, it includes a driving/control unit that selectively drives the left eye shutter or the right eye shutter.

The synchronization signal transmitted to the shutter glass is a signal of various short-distance communication methods, including RF signal, Bluetooth, ZigBee, ultra-wideband communication, and short-distance direct communication.

According to the present invention, an optical signal for synchronizing the left-eye image and the right-eye image is inserted and output at a designated position in the video frame, and a relay module separate from the display device receives it and codes it into an IR signal for synchronizing the left-eye image and the right-eye image. By providing a relay module that transmits data to the shutter glass, the user can conveniently view the image using a general 2D display device and shutter glass.

1 is a perspective view showing an example of a stereoscopic image providing system according to the prior art;
Figure 2 is a perspective view showing an example of a shutter glass used in a stereoscopic image providing system according to the prior art;
Figure 3 is a perspective view showing an example of a shutter glass-type stereoscopic image providing system according to the present invention;
Figure 4 is a side view of Figure 3;
Figure 5 is an example diagram showing left-eye image and right-eye image frames output from the display device in the shutter glass-type stereoscopic image providing system of the present invention.
Figure 6 is a schematic cross-sectional view of the relay module in the shutter glass-type stereoscopic image providing system of the present invention;
Figure 7 is a functional block diagram of a relay module according to the present invention.
Figure 8 is a functional block diagram of a shutter glass according to the present invention.

Hereinafter, a preferred embodiment of the shutter glass-type stereoscopic image providing system of the present invention will be described in detail with reference to the attached drawings.

FIG. 3 is a configuration diagram showing an example of a shutter glass-type stereoscopic image providing system of the present invention, FIG. 4 is a side view of FIG. 3, and FIG. 5 is a display device applied to the shutter glass-type stereoscopic image provision system of the present invention. This is an explanatory diagram showing an example of a video frame output.

As shown, the shutter glass type stereoscopic image providing system 1 of the present invention largely includes a display device 10, a shutter glass 30, and a relay module 50. Here, the relay module 50 is used by being mounted on the display device 10.

The display device 10 is a device capable of outputting images, such as a TV or a monitor, and may be a typical display device that does not have a separate control unit for outputting a three-dimensional image.

As shown in FIG. 5, the display device 10 may alternately output left eye image frames (LV) and right eye image frames (RV). This video can be displayed at a rate of 80 to 120 frames per second or more. The left eye image frame and the right eye image frame output from the display device 10 are either separately captured when shooting a 3D image, or an already captured 2D image is converted into a left eye image frame (LV) and a right eye image frame (RV) through a program. ) may have been separated.

Preferably, synchronization optical signals (LS, RS) are displayed in the left eye image frame (LV) and the right eye image frame (RV). The optical signal for synchronization is used to identify whether the corresponding video frame is a left eye video frame (LV) or a right eye video frame (RV).

Preferably, the synchronization optical signals LS and RS can be displayed at a specific position on the screen displayed by the display device 10. For example, the synchronization optical signal may be displayed at the edge of the screen.

Preferably, the synchronizing optical signals LS and RS can be displayed through the synchronizing optical signal display unit 13, which occupies a certain area of the screen 11. And the optical signals LS and RS for synchronization may be visible light signals radiated to the outside through the optical signal display unit 13.

For example, the optical signal (LS) for left eye synchronization may be a colored visible light signal and the optical signal (RS) for right eye synchronization may be a matte signal, or vice versa. In addition, both the left eye synchronization optical signal (LS) and the right eye synchronization optical signal (RS) are implemented as colored visible light signals, but may be configured with different colors or different blinking patterns.

Preferably, the optical signal display unit 13 for synchronization may be sized so that the relay module 50 can recognize the optical signal without error. For example, it may be made of a square or circular shape of a certain size.

The relay module 50 is installed on the edge of the display device 10 where the optical signals LS and RS for synchronization are output, and may be preferably installed in front of the optical signal display unit 13 for synchronization. For example, the relay module 50 may be installed within 1 to 3 cm from the optical signal display unit 13 for synchronization.

Preferably, the relay module 50 receives the synchronization optical signals (LS, RS) displayed on the screen 11 of the display device 10 and then codes them into IR (Infra Red) signals to produce the shutter glass 200. It can be sent to .

For this purpose, the relay module 50 may be installed on the edge of the display device 10. The installation location of the relay module 50 is notified in advance, or the user can adjust the location while watching the image status seen through the shutter glass. Preferably, the relay module 50 may have a detachable structure so that it can be easily changed depending on the position of the optical signal.

Figure 6 is a perspective view showing an example of a relay module according to the present invention, and Figure 7 is an internal functional block diagram of the relay module according to the present invention.

As shown in FIG. 6, the relay module 50 includes a case 51 having an insertion portion so that it can be installed by hanging on the edge of the display device 10, and a fixing bolt that allows it to be easily fixed to the display device 10. Includes (57). Also, a synchronization optical signal receiver 53 is installed on the inner surface of the case 50 to receive the synchronization optical signal displayed on the screen 11, and on the outside of the case 50, an IR signal is sent toward the shutter glass 200. An IR signal transmitting unit 56 for synchronization that transmits a signal is installed. At this time, the optical signal reception unit 53 for synchronization is installed to correspond to the optical signal display unit 13 for synchronization formed on the screen of the display device 10.

Specifically, as shown in FIG. 7, the relay module 100 includes a synchronization optical signal receiver 53 implemented with a phototransistor that receives the synchronization optical signal and converts it into an electrical signal, and transmits the synchronization optical signal toward the shutter glass. It includes a synchronization IR signal transmission unit 56 that transmits an IR signal. In addition, after determining whether the optical signal received through the synchronization optical signal receiver 53 is the left eye synchronization optical signal (LS) or the right eye synchronization optical signal (RS), the synchronization IR signal is output so that the corresponding synchronization IR signal is output. It may further include a driving/control unit 55 that controls the IR signal transmitting unit 56. In addition, when the photoelectric conversion signal output from the synchronization optical signal receiver 110 is weak, it may further include an amplification unit 54 for amplifying the photoelectric conversion signal.

Figure 8 is a functional block diagram of the shutter glass applied in the shutter glass-type stereoscopic image providing system of the present invention. As shown, the shutter glass 200 of the present invention includes a synchronization IR signal receiver 230 and a synchronization IR signal receiver 230 that receive a synchronization IR signal transmitted wired or wirelessly from the relay module 50. ) A driving/control unit 240 that selectively drives the left eye shutter 210 or the right eye shutter 220 after determining whether the IR signal for synchronization received is an IR signal for left eye synchronization or an IR signal for right eye synchronization. It can be done including.

In this way, the shutter glass type three-dimensional image providing system 1 according to the present invention receives the synchronization optical signals (LS, RS) displayed on the screen of the display device 10, and then recognizes the shutter glass 200. By converting the IR signal into an IR signal and transmitting it to the shutter glass 200 in a wired or wireless manner, a user wearing the shutter glass 200 can view a three-dimensional image through the display device 10.

In particular, according to the present invention, even in a typical display device that is not installed with a dedicated control unit for outputting a stereoscopic image, the image displayed on the synchronizing optical signal corresponding to the left-eye image and the right-eye image is displayed on the screen of the display device 10. After receiving the synchronization optical signals (LS, RS), they are converted into IR signals that the shutter glass 200 can recognize and transmitted to the shutter glass 200 in a wired or wireless manner. This has the effect of allowing you to easily watch 3D images.

Above, a preferred embodiment of the shutter glass-type stereoscopic image providing system of the present invention has been described in detail with reference to the attached drawings, but this is merely an example, and various modifications may be made within the scope of the technical idea of the present invention. Therefore, the scope of rights of the present invention should be determined by the matters stated in the claims.

Meanwhile, in the above-described embodiment, it is explained that the relay module communicates with the shutter glass through an IR signal for synchronization, but differently, it may also communicate with the shutter glass through wired communication, and, unlike the IR signal for synchronization, it may communicate with the shutter glass through RF communication or Communication may also be possible using various other short-distance communication methods (Bluetooth, ZigBee, ultra-wideband communication, short-range direct communication, etc.). Additionally, when different colors are used as the synchronization optical signal, the synchronization optical signal receiver may include two light receiving diodes that respond only to the corresponding color.

10: display device 11: screen
13: Optical signal display unit for synchronization 50: Relay module
53: Optical signal receiving unit for synchronization 54: Amplifying unit
55: driving/control unit 56: IR signal transmitting unit for synchronization,
210: Left eye shutter 220: Right eye shutter
230: IR signal receiving unit for synchronization 240: Driving/control unit

Claims (9)

A display device that outputs a left-eye image, a right-eye image, and synchronization optical signals corresponding to the left-eye image and the right-eye image at a specific location on the screen;
A relay module installed on the edge of the display device and receiving a synchronizing optical signal output from the screen of the display device, coding it into a left-eye image and a right-eye image synchronization signal and transmitting it to the shutter glass; and
A shutter glass type stereoscopic image providing system comprising a shutter glass that controls the opening and closing of the left eye shutter and the right eye shutter according to the signal transmitted from the relay module. According to paragraph 1,
The display device alternately outputs left-eye image frames and right-eye image frames, and displays and outputs a synchronizing optical signal at a specific position on the screen to correspond to the left-eye image frame and the right-eye image frame. A three-dimensional image provision system. According to paragraph 2,
The display device provides a shutter glass-type three-dimensional image, wherein a synchronizing optical signal display unit that displays a synchronizing optical signal to correspond to the left-eye image frame and the right-eye image frame is formed at a specific position close to the border of the screen. system. According to paragraph 3,
A shutter glass type three-dimensional image providing system, wherein the synchronizing optical signal display unit displays a visible light signal. According to any one of claims 1 to 4,
The relay module includes a synchronization optical signal receiver installed at a synchronization optical signal output position of the display device to receive a synchronization optical signal;
a synchronization signal transmitting unit that transmits a synchronization signal for the left eye and a synchronization signal for the right eye toward the shutter glass;
A driving/control unit that drives the synchronization signal transmitter to output a corresponding synchronization signal after determining whether the optical signal received through the synchronization optical signal receiver is a left-eye synchronization optical signal or a right-eye synchronization optical signal. A three-dimensional image provision system featuring a shutter glass method. According to clause 5,
A shutter glass type three-dimensional image providing system, wherein the synchronization signal transmitted through the synchronization signal transmitter is an IR signal for synchronization. According to clause 5,
The relay module includes a case having an insertion portion so that it can be installed by hanging on the edge of the display device; A shutter glass type three-dimensional image providing system comprising a fixing bolt for easy fixation to the display device. According to paragraph 1,
The shutter glass includes a synchronization signal receiver that receives a synchronization signal transmitted wired or wirelessly from the relay module, and whether the synchronization signal received through the synchronization signal receiver is a left-eye synchronization signal or a right-eye synchronization signal. A shutter glass type stereoscopic image providing system comprising a driving/control unit that selectively drives the left eye shutter or the right eye shutter after determining . In clause 7,
A shutter glass-type three-dimensional image providing system, wherein the synchronization signal transmitted to the shutter glass is a signal of various short-distance communication methods, including RF communication, Bluetooth, ZigBee, ultra-wideband communication, and short-distance direct communication.

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