KR20110128535A - Image display device and operating method for the same - Google Patents
Image display device and operating method for the same Download PDFInfo
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- KR20110128535A KR20110128535A KR1020100048041A KR20100048041A KR20110128535A KR 20110128535 A KR20110128535 A KR 20110128535A KR 1020100048041 A KR1020100048041 A KR 1020100048041A KR 20100048041 A KR20100048041 A KR 20100048041A KR 20110128535 A KR20110128535 A KR 20110128535A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
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- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
Description
The present invention relates to an image display apparatus capable of displaying an image in three dimensions and an operation method thereof. More particularly, the present invention relates to an image display apparatus capable of converting a 3D image signal and reproducing it as a 2D image, and an operation method thereof.
The image display device is a device having a function of displaying an image that a user can watch. The user can watch the broadcast through the image display device. A video display device displays a broadcast selected by a user among broadcast signals transmitted from a broadcast station on a display. Currently, broadcasting is shifting from analog broadcasting to digital broadcasting all over the world.
Digital broadcasting refers to broadcasting for transmitting digital video and audio signals. Digital broadcasts are more resistant to false noise than analog broadcasts, resulting in lower data loss, better error correction, higher resolution, and clearer pictures. In addition, unlike analog broadcasting, digital broadcasting is capable of bidirectional services.
Recently, researches on various contents that can be provided through stereoscopic images and stereoscopic images have been actively conducted, and stereoscopic image technology has become more and more common and practical in computer graphics as well as in various other environments and technologies. In addition, the above-described digital broadcasting can transmit a stereoscopic image, and a development for a device for reproducing the same is also in progress.
According to an exemplary embodiment of the present invention, an image display apparatus or an operation method thereof capable of simultaneously viewing the same content or different contents through one display unit is provided. In addition, a playback method of the same content or a plurality of different contents is selected to simultaneously play back 2D video and 3D video. In particular, when a user receives a 3D video signal but wants to view it as a 2D video, the present invention provides a video display device or an operation method capable of converting a 3D video signal and playing back a 2D video according to a user's setting.
Accordingly, the image display apparatus according to an aspect of the present invention is an image display apparatus capable of displaying a 3D image, wherein a user input unit receives a 2D / 3D mode selection signal, and a 2D mode is selected according to the 2D / 3D mode selection signal. The display apparatus may include a controller configured to generate a 2D image using either a left eye image signal or a right eye image signal among 3D image signals received for displaying the 3D image, and a display unit to display the generated 2D image.
In addition, the operating method of the image display device according to another aspect of the present invention relates to an image display device capable of displaying a 3D image, the step of receiving a 2D / 3D mode selection signal, 2D in accordance with the 2D / 3D mode selection signal When the mode is selected, generating a 2D image using any one of a left eye image signal and a right eye image signal among 3D image signals received for displaying the 3D image, and displaying the generated 2D image. do.
According to an embodiment of the present invention, a user may simultaneously view a 3D image and a 2D image. In addition, the image display apparatus according to an embodiment of the present invention may convert and reproduce a 2D image even when a 3D image signal is received, and display the converted 2D image and the received 3D image together. This is also the case when not only the same content but also a plurality of different contents are simultaneously received and reproduced.
According to an image display apparatus or an operation method thereof according to an embodiment of the present invention, a user may select whether to view an image in 3D mode or 2D mode, even when a plurality of users select different playback modes. Different needs of users can be satisfied. Accordingly, even when a plurality of users use the image display device together, each user may be provided with a 2D image and / or a 3D image according to individual preferences or conveniences.
1 is a view showing an image display device system according to an embodiment of the present invention.
2 is an internal block diagram of an image display device according to an embodiment of the present invention.
3 is an internal block diagram of a controller of an image display device according to an embodiment of the present invention;
4 is a diagram illustrating an example of a 3D video signal format capable of implementing 3D video.
5 is a diagram illustrating various scaling methods of a 3D video signal according to an embodiment of the present invention.
6 is a view showing a state in which the depth of the 3D image or 3D object is variable according to an embodiment of the present invention.
7 is a view showing a state in which a sense of depth, such as an image is controlled in accordance with an embodiment of the present invention.
8 and 9 illustrate an image display apparatus and a remote control apparatus according to an embodiment of the present invention.
10 is a flowchart illustrating a method of operating an image display apparatus according to an embodiment of the present invention.
11 is a flowchart illustrating a method of operating an image display apparatus according to another exemplary embodiment of the present invention.
12 is a flowchart illustrating a method of operating an image display apparatus according to an embodiment of the present invention.
13 is a view briefly illustrating a process of processing an image signal and generating an image when a 2D image and a 3D image are displayed according to an embodiment of the present invention.
14A to 14B illustrate an image display apparatus displaying an image according to an exemplary embodiment of the present invention.
15A and 15B illustrate an image display apparatus displaying an image according to an embodiment of the present invention.
Hereinafter, with reference to the drawings will be described the present invention in more detail.
The suffixes "module" and "unit" for components used in the following description are merely given in consideration of ease of preparation of the present specification, and do not impart any particular meaning or role by themselves. Therefore, the "module" and "unit" may be used interchangeably.
1 is a diagram illustrating an image display device system according to an exemplary embodiment of the present invention.
The
The
The
The
The
2 is a block diagram illustrating an image display apparatus according to an embodiment of the present invention.
2, the
The
In addition, the
The
The
The
In addition, the
The external device input /
The external device input /
The A / V input / output unit is a module for inputting video and audio signals from an external device into the
In addition, the wireless communication unit may perform wireless communication with another external device. The
In addition, the external device input /
For example, when the set-top box is a set-top box for an IP (internet protocol) TV, the external device input /
Meanwhile, the above-described IPTV may mean ADSL-TV, VDSL-TV, FTTH-TV, etc. according to the type of transmission network, and include TV over DSL, Video over DSL, TV overIP (TVIP), and Broadband TV ( BTV) and the like. In addition, IPTV may also mean an Internet TV capable of accessing the Internet, or a full browsing TV.
The
The coordinate calculation unit of the remote control
The remote controller transmission signal input to the
As another example, the
The
The
For example, when a user inputs a predetermined channel selection command, the
The
The
The user may input another kind of video or audio output command through the
The
The
The 3D display may be divided into an additional display method and a single display method according to a method of recognizing a 3D image by a user.
The independent display method is a method in which a 3D image may be implemented on a display alone without a separate auxiliary device. A user viewing a display using a single display method can watch a 3D image without an additional device (eg, polarized glasses). The independent display may include a lenticular method and a parallax barrier.
The additional display method is a method of implementing a 3D image using an auxiliary device. Additional display methods may include a head mounted display (HMD) method, glasses method, and the like. In addition, polarizing glasses, shutter glasses, spectral filters, and the like may be applied to the glasses used in the spectacles.
Meanwhile, the
The
3 is an internal block diagram of the
The
For example, the
The
The
The
The demultiplexed data signal may be an encoded data signal. The encoded data signal may include EPG (Electronic Progtam Guide) information including broadcast information such as a name, a start time, and an end time of a broadcast program broadcasted in each channel. For example, the EPG information may be TSC-PSIP (ATSC-Program and System Information Protocol) information in the ATSC scheme, and may include DVB-Service Information (DVB-SI) in the DVB scheme. .
The
The
The
The
The
In the present embodiment, the
The
4 is a diagram illustrating an example of a 3D video signal format capable of implementing 3D video. The 3D video signal format may be determined according to a method of disposing a left eye image and a right eye image generated to implement a 3D image.
The 3D image may be composed of a multi-view image. The user may view the multi-view image through the left eye and the right eye. The user may feel a three-dimensional effect of the 3D image through the difference of the image detected through the left eye and the right eye. According to an embodiment of the present invention, a multi-view image for implementing a 3D image includes a left eye image that can be recognized by the user through the left eye and a right eye image that can be recognized through the right eye.
As shown in FIG. 4A, a method in which the left eye image and the right eye image are arranged left and right is referred to as a side by side format. As shown in FIG. 4B, a method of disposing the left eye image and the right eye image up and down is referred to as a top / down format. As shown in FIG. 4C, a method of time-divisionally arranging a left eye image and a right eye image is called a frame sequential format. As shown in FIG. 4D, a method of mixing the left eye image and the right eye image for each line is called an interlaced format. As shown in FIG. 4E, a method of mixing the left eye image and the right eye image for each box is called a checker box format.
The image signal included in the signal input to the
The
The
The OSD signal is a signal generated for graphic or text display and may include information about a user interface screen, various menu screens, widgets, icons, etc. which the
The
Through the object displayed by the
FIG. 5 is a diagram illustrating various scaling methods of an 3D video signal or various shapes that an image may have according to an exemplary embodiment of the present invention. For adjusting the size or tilt of the 3D object, see FIG. 5.
The module for image processing such as the
In addition, the
3D object or 3D image such as an image received from a broadcasting station (see 210 in FIG. 1), a network server (see 230 in FIG. 1) or an external input device (see 230 in FIG. 1), or an OSD generated by the
And the slope effect or the rotation effect applied to the image according to the shape of the image, the difference in the length of the parallel sides of the
In this case, a tilting effect may occur because different parallax intervals are applied to each part even in one 3D image or 3D object. In other words, in order to make the image appear slanted or rotated, even in one 3D image or 3D object, a large depth portion and a small portion coexist, which means that the disparity interval is different for each pair of left and right eyes. It can be applied.
When one of the left eye image and the right eye image for displaying the 3D image or the 3D object is generated in the shape shown in FIG. 5 by the scaler or the OSD generator in the
Meanwhile, the scale adjustment of the 3D image signal or the 3D object may also be performed by the
The
In addition, the
On the other hand, the
6 is a view showing a state in which the depth of the 3D image or 3D object is variable according to an embodiment of the present invention.
According to an embodiment of the present invention described above, the 3D image is composed of a multiview image, wherein the multiview image may be illustrated as a left eye image and a right eye image. In this case, FIG. 6 illustrates a state in which a position recognized as an image is formed from a user's point of view is changed by a distance between a left eye image and a right eye image. Referring to FIG. 6, a stereoscopic or perspective view of an image felt by a user according to an interval or parallax between a left eye image and a right eye image will be described.
In FIG. 6, a plurality of images or objects having different depths are illustrated. These objects are referred to as a
That is, the
The
The second object 625 is composed of a second right eye image (indicated by 623 and R2) and a second left eye image (indicated by 621 and L2). According to the present exemplary embodiment, the second right eye image 623 and the second left eye image 621 are displayed at the same position on the
The
The
The
The
That is, according to the description with reference to FIG. 6, the depth of the object composed of the left eye image and the right eye image has a positive value (+) or a negative value (-) according to the left and right display positions of the left eye image and the right eye image. It can be seen that it is determined. As described above, the object having a positive value (+) having a depth is an object recognized by the user as if the object is protruded from the
6, the depth of the object, that is, the distance between the point recognized by the user as if the 3D image is located and the
7 is a diagram illustrating a state in which a sense of depth of an image is controlled according to an embodiment of the present invention. Referring to FIG. 7, it can be seen that the depth of the same image or the same 3D object varies depending on the distance between the
The interval between the
In this case, as described with reference to FIG. 6, the depth of the 3D image or the 3D object illustrated in FIG. 7B is greater than the depth of the 3D image or the 3D object illustrated in FIG. 7A. . In each case, when the depth is quantified and expressed as a 'and b', respectively, it can be seen that a '<b' relationship is also established according to a <b. In other words, when the 3D image is projected, the depth of the expression may be increased or decreased as the distance between the
8 and 9 are views illustrating an image display device and a remote control device according to an embodiment of the present invention.
The
The
In the embodiment described with reference to FIGS. 8 and 9, the spatial
In the present embodiment, the spatial
The user may move or rotate the space
In the example described with reference to FIG. 9, when the user moves the spatial
As illustrated in FIGS. 8 and 9, the
For the above-described series of operations or functions of the space
The remote control signal generated through the above process is transmitted to the image display device through the remote control wireless communication unit. More specifically, the remote control signal output through the remote control wireless communication unit is input to the remote control
The remote control information storage unit stores various types of programs and application data necessary for controlling or operating an image display device or a spatial remote controller. For example, when the wireless communication between the image display device and the spatial remote control is performed, the remote control information storage unit stores the used frequency band, so that the remote control information regarding the frequency band can be used for communication of the wall.
In addition, the power supply unit is a module for supplying power required for driving the spatial remote control. According to an example, when the power supply unit outputs a signal for commanding that the remote control unit temporarily stops or resumes the power supply according to the movement of the spatial remote controller detected by the sensing unit, the power supply unit supplies power according to the control signal. By varying t, power can be saved while the spatial remote control is not used or not in operation.
As another example, a predetermined command may be input to the
10 is a flowchart illustrating a method of operating an image display apparatus according to an exemplary embodiment.
The video display device may receive or receive a 2D video signal or a 3D video signal through the
In the embodiment of the present invention, it is assumed that the image display apparatus receives a 3D image signal or plays back 3D content. The user may select whether to watch a 2D image, a 3D image, or both a 2D image and a 3D image. In order to select this, a signal input by the user to the image display apparatus will be referred to as 2D / 3D mode selection signal hereinafter. The image display device receives a 2D / 3D mode selection signal through a user input unit such as a remote controller interface unit 140 (S1015). The user may input a 2D / 3D mode selection signal through a user input unit such as the
When the 2D / 3D mode selection signal is input, the
When both the 2D mode and the 3D mode are selected according to the 2D / 3D selection signal, the
When the 2D image and the 3D image are generated through the above-described process, the image display device may reproduce both the 2D image and the 3D image, and may receive a screen setting signal from the user before that (S1035). The screen setting signal is one of user signals input to determine what size each image is to be displayed when a plurality of images are displayed on the
If one of the 2D image or the 3D image is set as the main screen and the other is displayed as the PIP screen in the main screen according to the screen setting signal, the
If only the 2D mode is selected according to the 2D / 3D setting signal and the 3D mode is not selected, the
When the 2D mode is not selected by the 2D / 3D video signal and only the 3D mode is selected, the video display device processes the received, input or stored 3D video signal to display the 3D video (S1055 to S1065).
11 is a flowchart illustrating a method of operating an image display apparatus according to another exemplary embodiment.
In the exemplary embodiment described with reference to FIG. 11, two or more images are displayed through the
First, the image display apparatus receives or receives a 3D image signal for two or more contents (S1110). The two or more contents may be a combination of an image or an audio and a video reproduced through a 3D image. In addition, it may be an image received from a TV broadcasting station through different broadcast channels, or may be an image received from different external input devices. Here, two or more contents may be input or received by various paths. That is, video content received through a broadcast channel, video content transmitted through an IP network, video content received from an external input device, or a combination thereof may correspond to two or more contents herein.
When a 3D image signal for two or more contents is input, the
When the 2D / 3D selection signal is input, the controller determines which display mode is selected for which content. Herein, the plurality of contents are referred to as first content and second content for convenience. First, it is determined whether a 2D mode is selected for the first content (S1130). When the 2D mode is selected for the first content, the first content is displayed as a 2D image and the second content is displayed as a 3D image. Accordingly, when the 2D mode is selected for the first content, the
In contrast, when the 2D mode is selected for the second content (S1150), the second content is displayed as a 2D image and the first content is displayed as a 3D image. Accordingly, as the 2D mode is selected for the second content, the
If the 2D mode is not selected for both the first content and the second content, all content is reproduced in 3D video. Accordingly, the
Herein, an image according to reproduction of the first content and an image according to reproduction of the second content are referred to as a first image and a second image, respectively. Accordingly, when the 2D mode is selected for the first content, the first image is displayed as a 2D image and the second image is displayed as a 3D image, whereas when the 2D mode is selected for the second content, the second image is a 2D image. 1 The image is displayed as a 3D image.
The first image and the second image mean two or more images simultaneously displayed through one
When the first image and the second image are generated as 2D and / or 3D images through the above-described process, the
12 is a flowchart illustrating a method of operating an image display apparatus according to an exemplary embodiment of the present invention. A process of generating a 2D image from a 3D image signal will be described with reference to FIG. 12.
First, the image display apparatus may receive or receive a 3D image signal (S1210). The 2D mode may be selected according to the 2D / 3D mode selection signal received from the user through the user input unit such as the remote controller interface unit 140 (S1220). Then, the
The
FIG. 13 is a diagram briefly illustrating a process of processing an image signal and generating an image when a 2D image and a 3D image are displayed according to an exemplary embodiment of the present invention. Here, a case where the first content and the second content are reproduced as 2D video and 3D video is illustrated. In the embodiment described with reference to FIG. 13, since both the first content and the second content are 3D images, the following description will refer to the
The
Since the
The image display apparatus generates a 3D image to be displayed together with the first 2D image. The 2D 3D image 1327 is generated by processing the received or input 3D image signal with respect to the
14A to 14B illustrate an image display apparatus displaying an image according to an exemplary embodiment of the present invention.
Here, a case where the same content is simultaneously displayed in 2D video and 3D video at the request of a plurality of users is illustrated. According to the example illustrated in FIG. 14A, 3D video is displayed on the
In addition, in the example illustrated in FIG. 14B, the 2D image and the 3D image are reproduced through the
As described above, using the image display apparatus which simultaneously reproduces the 2D video and the 3D video with respect to the same content, two or more users can select the 2D / 3D mode according to their tastes or needs. Therefore, according to an embodiment of the present invention, it is possible to simultaneously satisfy the needs of a user who feels uncomfortable to watch a 3D image with respect to the same content and a user who wants to watch the 3D image.
15A and 15B are views illustrating an image display apparatus displaying an image according to an exemplary embodiment of the present invention. Referring to FIGS. 15A and 15B, a case in which a plurality of different contents are reproduced as 2D and 3D images according to different requests of a user will be described.
According to the example shown in FIG. 15A, 3D images are displayed on the
In addition, in the example illustrated in FIG. 15B, the 2D image and the 3D image are reproduced through the
As described above, when 2D video and 3D video are simultaneously played on different contents as well as the same content, two or more users can simultaneously watch different videos at the same time according to their own tastes or needs, as well as 2D videos. You can select which mode to play and watch. Therefore, according to an embodiment of the present invention, it is possible to satisfy the needs of users who are uncomfortable with viewing 3D images, users who want to watch 3D images, and users who want to watch different images.
On the other hand, the image display device and its operation method according to the present invention is not limited to the configuration and method of the embodiments described as described above, the embodiments are all of the embodiments so that various modifications can be made Or some may be selectively combined.
The operating method of the image display device of the present invention can be implemented as processor readable codes on a processor readable recording medium included in the image display device. The processor-readable recording medium includes all kinds of recording devices that store data that can be read by the processor. Examples of the processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like, and also include a carrier wave such as transmission through the Internet. The processor-readable recording medium can also be distributed over network coupled computer systems so that the processor-readable code is stored and executed in a distributed fashion.
In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.
100: video display device
110: broadcast signal receiver
120: network interface unit
130: external device input and output unit
140: remote control unit interface unit
150: storage unit
170:
180: display unit
185: sound output unit
200: remote control device
210: broadcasting station
220: network server
Claims (16)
A user input unit receiving a 2D / 3D mode selection signal;
A controller configured to generate a 2D image using any one of a left eye image signal and a right eye image signal among 3D image signals received for displaying the 3D image when a 2D mode is selected according to the 2D / 3D mode selection signal; And
And a display unit for displaying the generated 2D image.
And the controller is configured to separate one of the left eye image signal and the right eye image signal included in the image signal for the 3D image into a 2D image signal to generate the 2D image.
When the 3D mode is selected together with the 2D mode according to the 2D / 3D mode selection signal, the controller generates a 3D image using the left eye image signal and the right eye image signal,
And the display unit simultaneously displays the 2D image and the 3D image, and at least one of the 2D image and the 3D image is displayed on a portion of the display unit.
When the display unit simultaneously displays the 2D image and the 3D image, the user input unit receives a screen setting signal for selecting a ratio between the size of the 2D image and the size of the 3D image,
And the controller controls one of the 2D image and the 3D image to be displayed as a main screen and the other to be displayed as a PIP screen for the main screen according to the screen setting signal.
When the display unit simultaneously displays the 2D image and the 3D image, the user input unit receives a screen setting signal for selecting a ratio between the 2D image and the 3D image,
And the controller controls the 2D image and the 3D image to be displayed on different areas of the display unit at a ratio according to the screen setting signal.
When the 3D mode is selected together with the 2D mode according to the 2D / 3D mode selection signal,
And the control unit further receives a 3D image signal for content different from the 2D image to generate a 3D image, and the display unit further displays the 3D image for the different content.
Any one of the left eye image signal and the right eye image signal for the 2D image and the 3D image signal are image signals for a broadcast program received through different channels.
Any one of a left eye image signal and a right eye image signal for the 2D image and the 3D image signal are received from different external devices.
Receiving a 2D / 3D mode selection signal;
When a 2D mode is selected according to the 2D / 3D mode selection signal, generating a 2D image using any one of a left eye image signal and a right eye image signal among 3D image signals received for displaying the 3D image; And
And displaying the generated 2D image.
In order to generate the 2D image, any one of the left eye image signal or the right eye image signal included in the video signal for the 3D image is separated and converted into a 2D image signal.
Generating a 3D image using the left eye image signal and the right eye image signal when the 3D mode is selected together with the 2D mode according to the 2D / 3D mode selection signal,
And simultaneously displaying the 2D image and the 3D image, and displaying at least one of the 2D image and the 3D image on a partial region of the display unit.
When displaying the 2D image and the 3D image at the same time, receiving a screen setting signal for selecting a ratio between the 2D image and the 3D image,
And displaying one of the 2D image and the 3D image as a main screen according to the screen setting signal, and displaying the other as a PIP screen for the main screen.
When displaying the 2D image and the 3D image at the same time, receiving a screen setting signal for selecting a ratio between the 2D image and the 3D image,
And displaying the 2D image and the 3D image on different areas of the display unit at a ratio according to the screen setting signal.
Receiving a 3D video signal for content different from the 2D video;
When a 3D mode is selected together with the 2D mode according to the 2D / 3D mode selection signal, a 3D image generated by using a left eye image signal and a right eye image signal included in the 3D image signal for the different content is displayed. Method of operating a video display device characterized in that.
Any one of the left eye image signal and the right eye image signal for the 2D image and the 3D image signal are image signals for a broadcast program received through different channels.
Any one of a left eye image signal and a right eye image signal for the 2D image and the 3D image signal are received from different external devices.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2013101602A1 (en) * | 2011-12-26 | 2013-07-04 | Intel Corporation | Techniques for managing three-dimensional graphics display modes |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2013101602A1 (en) * | 2011-12-26 | 2013-07-04 | Intel Corporation | Techniques for managing three-dimensional graphics display modes |
US10275924B2 (en) | 2011-12-26 | 2019-04-30 | Intel Corporation | Techniques for managing three-dimensional graphics display modes |
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