KR20090074620A - Method of controlling a composition of a picture - Google Patents

Abstract

A method of controlling composition of a screen is provided to reduce the number of black mats generated due to screen mode conversion of a digital television into one, thereby providing various contents through one black mat. A controller of a digital television receives a screen mode conversion request through a screen mode conversion mode(406). The controller converts an image source of a presently outputted broadcasting program into an image source suitable for a requested screen mode(408). The controller modifies an output coordinate value in a display unit of the image source. The controller receives contents preset by a user. The controller outputs the contents to a location of the black mat with a broadcasting program of the converted screen mode(410).

Description

Screen composition control method {METHOD OF CONTROLLING A COMPOSITION OF A PICTURE}

The present invention relates to a method of controlling the screen configuration of a television, and more particularly, to a method of controlling the configuration of a black mat generated when a screen mode is changed.

Due to the proliferation of high speed internet and the advent of digitalized broadcasting program production environment, digital broadcasting system using digital television which can provide various additional contents as well as functions of existing television has been developed.

As one of such digital broadcasting systems, a digital broadcasting system using an Internet Protocol (hereinafter, simply referred to as 'IP') network is used. A digital broadcasting system using an IP network refers to a service that can provide various contents delivered through an IP-based communication network through a television. The digital television using an IP network is an MPEG-2 or MPEG-4 method through an IP network. It performs the function of displaying digital information compressed and transmitted by technology. Digital television using the IP network as described above can provide a variety of additional services such as Internet search, movie watching, home banking, short message service (SMS) and reservation service.

In addition, a television (recording function television) equipped with a personal video recorder (PVR) function that automatically records and plays back a broadcast in an internal storage unit (HDD: hard disk drive) is also a digital television. It is widely spread in recent years. Since the recording function television as described above includes a storage unit (HDD), not only a broadcast program but also various contents such as EPG and schedule information can be stored, so that the user can obtain various information from the digital television.

That is, the digital television not only provides various information to the user through the Internet, but also stores and provides various contents to the user.

On the other hand, digital television is expected to be converted to an image source having a 16: 9 screen mode, but at present, an image source having a 4: 3 screen mode and an image source having a 16: 9 screen mode are mixed. In this case, a monitor having an aspect ratio of 4: 3 and a monitor having an aspect ratio of 16: 9 are mixed.

Since the two types of image sources and the monitor are used in combination as described above, in some cases, the user may watch a broadcast program in a state in which a black mat is formed because no screen is output on the top, bottom, left, and right sides of the monitor.

For example, if a user with a digital television with an aspect ratio of 16: 9 watches a video source with an aspect ratio of 4: 3, he may see a fat wide sideways, and also 4: 3 When a user having a digital television having an aspect ratio of? Is watching an image source having a 16: 9 aspect mode, he / she may see a slanted screen up and down.

Since users have a feeling of rejection of such abnormal screens, a user with a digital television having a 16: 9 aspect ratio may watch a broadcast program by changing the screen mode to 4: 3, and may have a 4: 3 aspect ratio. A user with a digital television may switch the picture mode to 16: 9 to watch a broadcast program.

However, when the screen mode of the digital television is changed as described above, in a digital television having an aspect ratio of 16: 9, black black mattes are generated on the left and right sides of the screen, and the aspect ratio is 4: 3. In black televisions, black black mats are generated at the top and bottom of the screen where no video is output.

On the other hand, as described above, the distortion of the screen due to the screen mode does not match the aspect ratio of the digital television gives the user a sense of rejection, but to overcome this, the vertical black and white or left and right black mat generated when changing the screen mode It also gives viewers eye strain and rejection. In addition, when the black mat is left for a long time has a negative effect on the display unit of the digital television, there is a problem that the pixel error may occur when the normal operation in the screen mode.

1 is an exemplary diagram illustrating a screen state changed according to a conventional screen configuration control method.

As a method for preventing the problems as described above, as described in the prior art Patent Publication No. 10-2004-0062802, to produce a variety of colors and patterns according to the user's choice on the black mat portion.

That is, according to the prior art, when a digital TV having a 16: 9 aspect ratio as shown in FIG. 1 changes from side to side (A) to 4: 3 screen mode (B) for viewing The patterns of various colors (for example, a pattern called 'DRAMA' is output in FIG. 1) may be output on the left and right black mats C. FIG.

However, the conventional method as described above simply changes the black mats generated on the top, bottom, left, and right sides of the screen to colors or patterns, and the user can concentrate on the broadcast program by various colors or patterns generated on the top, bottom, left, and right sides of the screen. There was a problem that can not be.

In addition, the conventional method as described above merely provides a color or pattern stored in the television, and there is a problem in that it is not possible to provide various kinds of information to the user through the black mat.

An object of the present invention for solving the above problems, not only can reduce the number of black mats generated by the screen mode conversion of the digital television to one, but also to provide a variety of content through a single black mat, screen It is to provide a configuration control method.

According to an aspect of the present invention, there is provided a screen configuration control method applied to a digital television, the method comprising: receiving a screen mode conversion request; Extracting a position of one set black mat; Extracting content set to be output at the position of the one black mat; Outputting a broadcast program converted to the screen mode requested for conversion to a position other than the position of the black mat; And outputting the content at the position of the one black mat.

The present invention has an excellent effect of reducing the eye fatigue of the user by providing one black mat when the screen mode is changed.

In addition, the present invention has an excellent effect that can provide a variety of content through one black mat position.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a configuration diagram of an embodiment of a digital broadcasting system to which a screen configuration control method is applied.

As shown in FIG. 2, the digital broadcasting system to which the screen configuration control method according to the present invention is applied includes a plurality of broadcasting system 100 for transmitting various broadcasting programs and a digital television for outputting broadcasting programs transmitted from the broadcasting system. 400).

The broadcasting station system 100 is a system for providing broadcast programs as described above, and may be variously operated according to its type. That is, the broadcasting station system may be at least one of an over-the-air broadcasting system, a cable broadcasting system, a satellite broadcasting system, an internet broadcasting system, and a wired broadcasting system. The broadcasting program provided by the broadcasting system may also include dramas, movies, sports, and stocks. , News, and more.

The digital television 400 not only performs a basic function of outputting a broadcast program transmitted wirelessly or by wire from a broadcasting station system, but also implements a screen configuration control method according to the present invention, so that a user can watch a broadcast program more conveniently. It has features to make it.

3 is a configuration diagram of an embodiment of the digital television shown in FIG. 2.

As shown in FIG. 3, the method for controlling a screen configuration according to the present invention includes a channel tuning unit 410, a signal processing unit 420, a display unit 430, a speaker 440, a data storage unit 450, and an interface ( 460, a user selector 470, and a controller 490.

The channel tuning unit 410 may include one or more tuners for tuning a broadcast signal received through an antenna, and a demodulator for outputting the tuned signal in a transport stream form through a demodulation process and an error correction process. The broadcast signal having a frequency band corresponding to the tuning control signal of the controller is tuned.

The signal processor 420 processes a broadcast signal of a channel tuned through the channel tuner and displays the same on the display. In addition, the signal processing unit processes not only the broadcast signal received through the channel tuning unit but also an image signal of an electronic program guide (EPG) (hereinafter, simply referred to as 'EPG') stored in the data storage unit. It can also be indicated in the unit. An EPG refers to organization information of a broadcast program individually received from a broadcasting station or a second broadcast service provider, and is stored and managed in a data storage unit. On the other hand, the signal processor repositions the screen coordinates of the broadcast program according to the control of the controller when the screen mode is changed, and the EPG information, the schedule of the user, and the stock on the black mat formed in one of the upper, lower, left, and right areas of the broadcast program. At least one of information and weather information is mixed with the broadcast program screen.

The display unit 430 performs a function of outputting a video signal decoded by a signal processor from a broadcast signal of a selected channel so that a user can view it, and may include digital light processing (DLP), liquid crystal display (LCD), and PDP ( Various types of display modules such as Plasma Display Penal) may be applied. That is, the display unit performs a function of substantially outputting the screen of the broadcast program processed by the controller and the signal processor and the screen of the black mat area.

The speaker 440 performs a function of outputting the audio signal decoded by the signal processor among the broadcast signals of the selected channel so that a user can hear it.

The data storage unit 450 is composed of a hard disk drive and the like, and stores a broadcast signal and EPG information received from the channel tuning unit. In addition, the data storage unit may store schedule information input by the user, and may store stock information and weather information transmitted through the interface.

The interface 460 connects with a network and a computer (PC) to transmit and receive various broadcast signals and information.

The user selector 470 includes various buttons for controlling the control unit. In particular, the user selector 470 includes a button for allowing a user to switch the screen mode, a button for selecting content to be displayed on a black mat, and the like. have. Meanwhile, the user selector includes at least one of a remote signal receiver for receiving a remote control signal transmitted from a remote control means such as a wireless remote controller or a front panel composed of buttons formed on the exterior of the television, and the remote signal receiver and the front panel. Each includes the various buttons as described above.

The controller 490 is implemented as a CPU or a microcomputer. The controller 490 not only outputs a broadcast program among the broadcast signals transmitted through the channel tuning unit, but also stores the broadcast signal in the data storage unit. It may be. In particular, the controller applied to the present invention may perform a function of outputting various types of content on one black mat together with the broadcast program screen by controlling the signal processor as described above.

On the other hand, the present invention is to enable a digital television including the above-described configuration to form a single black mat and output various contents to the black mat when the screen mode is converted, refer to Figure 4 below. The screen configuration control method according to the present invention will be described in detail. The present invention can be applied to both a digital television having an aspect ratio of 4: 3 and a digital television having an aspect ratio of 16: 9. Hereinafter, for convenience of description, the present invention will be described in detail with an example of a digital television having an aspect ratio of 16: 9. It is explained.

4 is a flowchart illustrating an embodiment of a screen configuration control method according to the present invention, and FIG. 5 is an exemplary view of a screen controlled according to the screen configuration control method according to the present invention.

First, the user sets the position of the black mat for each screen mode by using the screen mode setting menu provided by the digital television (402). That is, as described above, the digital television provides screen modes of 4: 3 and 16: 9, and in addition to this, various types of screen modes may be additionally provided. At this time, the position of the black mat may be displayed up and down or left and right for each mode, and the user may set the position of the black mat to any one of up, down, left and right for each screen mode. That is, the user can drive the black mat in one direction in the most comfortable state for viewing the screen.

In addition, the user may set the type of the content to be output to the black mat position (404). That is, the digital television can provide stock information, weather information, EPG, and the like through various networks, and can also display a schedule input by a user. Accordingly, the user may select and store the content to be viewed at the location of the black mat among the various contents as described above.

Meanwhile, the controller of the digital television may receive a screen mode conversion request through the screen mode conversion menu while outputting various broadcast programs through the display unit according to a user's request (406).

Upon receiving the screen mode conversion request as described above, the control unit converts the video source of the currently output broadcast program into a video source suitable for the requested screen mode, and modifies the output coordinate value on the display unit of the video source. (408). That is, the controller converts the output value of the image source in the current screen mode and the output value of the image source in the screen mode in which the modification is requested, and also, in a screen mode other than the position of one black mat selected by the user. In order to output the image source, the output coordinate value of the display unit of the image source is modified.

The controller performs the conversion process for the image source as described above, receives the content preset by the user, and outputs the content to the position of the black mat together with the broadcast program in the converted screen mode (410). ).

For example, as illustrated in FIG. 5, a user who was watching a broadcast program screen by an image source having a 4: 3 screen mode on a digital television having a 16: 9 aspect ratio enters a 4: 3 screen mode. When requesting the conversion, the control unit converts the screen D in the 16: 9 screen mode, which has been output, to the screen E in the 4: 3 screen mode, and the black mat position (screen) preset by the user. Right) of the user can output the content (EPG) (F) pre-set by the user.

Meanwhile, in the above description, the position of one black mat and the content of the content to be output at the position of the one black mat can be set in advance, but the present invention is not limited thereto. Therefore, when the user wants to change the screen mode, the user may directly select the position of one black mat and the content to be output.

In addition, the position of one black mat and the content to be output may be changed at the request of the user in the converted screen mode.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

1 is an exemplary view showing a screen state changed according to a conventional screen configuration control method.

2 is a block diagram of an embodiment of a digital broadcasting system to which a screen configuration control method is applied.

3 is a configuration diagram of an embodiment of the digital television shown in FIG. 2;

4 is a flowchart illustrating an embodiment of a screen configuration control method according to the present invention;

5 is an exemplary view of a screen controlled according to the screen configuration control method according to the present invention.

<Description of Major Symbols in Drawing>

410: channel tuning unit 420: signal processing unit

430: display unit 440: speaker

450: data storage unit 460: interface

470: user selection unit 490: control unit

Claims (4)

In the screen configuration control method applied to a digital television, Receiving a screen mode change request; Extracting a position of one set black mat; Extracting content set to be output at the position of the one black mat; Outputting a broadcast program converted to the screen mode requested for conversion to a position other than the position of the black mat; And And outputting the content at the position of the one black mat. The method of claim 1, The position of the one black mat and the type of content to be output are set before receiving the screen mode conversion request. The method of claim 1, The location of the one black mat and the type of the content to be output, Screen composition control method, characterized in that can be modified again. The method of claim 1, The content is, Method of controlling the screen configuration, characterized in that at least one of stock information, weather information, EPG, schedule.

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