KR20110033513A - Method for outputting subtitle data and display unit enabling of the method - Google Patents

Abstract

PURPOSE: A caption display method and a display device adopting the same are provided to enable a user to view caption data without being disturbed by a video signal. CONSTITUTION: At least one caption data is selected from a user(S501). A first display control unit outputs the selected caption data to a second display control unit(S502). Under a control of a second display control unit, the caption data is outputted to a second display unit(S503). The caption data is outputted in a second display unit.

Description

Subtitle display method and display device employing the method {METHOD FOR OUTPUTTING SUBTITLE DATA AND DISPLAY UNIT ENABLING OF THE METHOD}

The present invention relates to a caption display method and a display device employing the method, and more particularly, to output a video signal to a first display unit and to output a plurality of caption data to a second display unit to enhance user convenience. A caption display method and a display device employing the method.

Conventional broadcast receivers are serviced in such a manner that content produced by a broadcaster is transmitted through a radio wave transmission medium such as terrestrial, cable, or satellite broadcasting, and a user views the receiver through a receiver capable of receiving the respective delivery media. .

However, as digital-based digital broadcasting technology has been developed and commercialized in existing analog broadcasting, various types of content services can be provided to users using existing radio waves, wired cable media, or Internet networks.

On the other hand, while providing such various types of content services to the user, digital broadcast receivers are often provided with subtitle data in addition to the video signal, these subtitle data are mainly output overlaid on the video signal, which is inconvenient for user viewing There was a problem that could cause.

1 is a diagram illustrating an embodiment of outputting caption data in a display device according to the related art. Referring to FIG. 1, since the display device of the related art overlays and outputs caption data on a video signal, the display device may cover the video signal, thereby causing a user to feel uncomfortable.

In addition, since the display device of the related art outputs only subtitle data composed of one language, it is not possible to provide subtitle data composed of a plurality of languages and thus does not enhance user convenience.

2 is a diagram illustrating a process of outputting caption data in a display device according to the related art. Referring to FIG. 2, when the video receiver and the caption data are input from the receiver, the broadcast receiver outputs the video signal to the video codec block 202 and the caption data to the controller 203. The video codec block 202 outputs the synchronization data and the video data to the decoder 204, and the decoder outputs the video signal to the subtitle data drawing block 205. The caption data drawing block 205 overlays the caption data output from the controller 203 on the video signal and outputs the caption data to the display unit 206.

Accordingly, the caption data output in this manner is output on the video data as described above, which hinders viewing of the video data and cannot provide caption data composed of a plurality of languages. There is an urgent need for the development of a caption display method and a display device employing the method that can provide caption data composed of a plurality of languages while allowing a user to watch a video signal without being disturbed by the caption data. There is a situation.

Disclosure of Invention The present invention solves the problems of the prior art as described above, and enables a user to view subtitle data without being disturbed by viewing a video signal, while providing a subtitle data composed of a plurality of languages, and a method thereof. It is an object of the present invention to provide a display device employing the same.

According to an embodiment of the present invention, a method for displaying captions of a display device including at least two independent display units includes: selecting one or more caption data from a user; Outputting the selected caption data to a second display controller by the first display controller; Receiving the caption data by the second display controller and controlling the input caption data to be output to a second display unit; And outputting the caption data on the second display unit.

The subtitle display method may further include outputting a video signal from the first display controller to the first display unit.

The step of selecting one or more subtitle data from a user may include receiving one or more languages to be output as subtitles from a user, and outputting the selected subtitle data to a second display controller from the first display controller. The method may include outputting caption data corresponding to the selected language from the first display controller to a second display controller.

In this case, a plurality of subtitle data are selected, the first display controller outputs the selected plurality of subtitle data to the second display controller, and the second display controller outputs the selected plurality of subtitle data to the second. It can be controlled to output all of the display unit.

The caption data may be selected in plural, the second display controller and the second display controller may be plural, and the first display controller may output the selected caption data to each of the plurality of second display controllers. have.

The first display controller may transmit synchronization data together with the caption data to the second display controller, and the second display controller may control the caption data to be synchronized with the video signal by using the synchronization data. Can be.

In addition, the first display control unit transmits an intra-coded frame along with the caption data to the second display control unit, and the second display control unit uses the I-frame to fast forward, rewind, Alternatively, the caption data and the video signal may be controlled to be synchronously output when a random play input is performed.

In this case, the second display unit may be attached to one surface of the display device, and the first display control unit and the second display control unit may be connected to a network through a predetermined connection unit.

According to another aspect of the present invention, a display device includes: a first display controller configured to receive one or more caption data from a user and output the selected caption data to a second display controller; A second display controller which receives the caption data and controls the input caption data to be output to a second display unit; And a second display unit configured to output the caption data.

In this case, the first display controller may control the video signal to be output to the first display unit.

The first display controller may receive at least one language to be output as a caption from a user, and the first display controller may output caption data corresponding to the selected language to the second display controller.

The caption data may be selected in plural, and the first display controller may output the plurality of selected caption data to the second display controller, and the second display controller may display the plurality of selected caption data in the second display. Can be controlled to be output to all parts

The caption data may be selected in plural, the second display controller and the second display controller may be plural, and the first display controller may output the selected caption data to each of the plurality of second display controllers. have.

In this case, the first display controller transmits the synchronization data together with the caption data to the second display controller, and the second display controller controls the caption data to be synchronized with the video signal using the synchronization data. can do.

At this time, the first display control unit transmits an intra-coded frame to the second display control unit together with the caption data, and the second display control unit fast forwards and rewinds using the I-frame. Alternatively, the caption data and the video signal may be controlled to be synchronously output when a random play input is performed.

In this case, the second display unit may be attached to one surface of the display device, and the first display control unit and the second display control unit may be connected to a network through a predetermined connection unit.

The present invention has the effect of providing the caption data composed of a plurality of languages while allowing the user to watch the caption data without being disturbed by the viewing of the video signal.

For example, the present invention allows a user to watch a video signal clearly on the entire screen of the first display unit, while allowing a plurality of subtitle data to be viewed on the second display unit, thereby helping to improve the language ability of the user, or in a multicultural society. The user's convenience can be significantly increased, such as allowing each member of the to view a video signal.

Hereinafter, a caption display method and a display device employing the method will be described in detail with reference to the accompanying drawings.

The terms used in the present invention have been selected as general terms widely used as possible in consideration of the functions in the present invention, but may vary according to the intention or custom of a person skilled in the art or the emergence of a new technology. In addition, in certain cases, there is also a term arbitrarily selected by the applicant, in which case the meaning will be described in detail in the description of the invention. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the contents throughout the present invention, rather than the names of the simple terms.

3 is a diagram illustrating an embodiment of a display device according to the present invention. The display device according to an embodiment of the present invention includes at least two or more independent display units. For example, another display device according to an embodiment of the present invention includes a first display unit 301 and a second display unit 302.

According to an embodiment, the second display unit 302 is attached to one surface of the display device. For example, the second display unit 302 may be attached to one bottom surface of the first display unit 301. The first display unit 301 may be controlled by the first display controller, and the second display unit 302 may be controlled by the second display controller. In this case, the first display controller and the second display controller are controlled. May be networked through a predetermined connection.

In FIG. 3, the case where there is one second display unit is illustrated as an example, but a plurality of second display units may be implemented according to an embodiment.

The display device of the present invention includes an IPTV (Internet Protocol Television) providing content using an internet network as well as a broadcast receiver that receives and outputs content produced by a broadcaster through terrestrial, cable or satellite broadcasting.

4 is a cross-sectional view of a display device according to an embodiment of the present invention. Referring to FIG. 4, a display device according to an exemplary embodiment may include a first display controller 402 and a second display unit 403 for controlling the first display unit 401 and the first display unit 401. And a second display controller 404 for controlling the second display unit 403.

In some embodiments, the second display unit 403 and the second display control unit 404 are attached to one surface of the display device. For example, the second display unit 403 and the second display control unit 404 may be attached to one lower surface of the first display unit 401 and the first display control unit 402. In this case, the first display control unit 402 and the second display control unit 404 may be network-connected through a predetermined connection unit 405.

The connection unit 405 serves as a passage between the first display control unit 402 and the second display control unit 404. The connection unit 405 transmits various data, caption data, and control signals from the first display control unit 402 to the second display control unit 404 or supplies them to the second display unit 403 or the second display control unit 404. To be powered.

The connection unit 405 may include a wired / wireless data port, and according to an exemplary embodiment, a universal serial bus (USB), a Bluetooth, a radio frequency identification (RFID), an infrared data association (IrDA), and a UWB ( And a module for short range communication such as Ultra Wideband) and ZigBee.

5 is a flowchart illustrating a process of displaying caption data according to an embodiment of the present invention.

Referring to FIG. 5, the display device according to an embodiment of the present invention receives one or more subtitle data from the user in step S501.

In this case, the display device may output a predetermined user interface to the first display unit to receive at least one subtitle data to be output as subtitles, or at least one language to be output as subtitles.

In this case, the first display controller may control to output the video signal to the first display unit, and the first display unit outputs the video signal.

In operation S502, the first display controller outputs the selected subtitle data to the second display controller. In this case, the first display controller can output the caption data corresponding to the selected language to the second display controller.

In this case, the first display controller transmits the synchronization data together with the caption data to the second display controller, and the second display controller controls the caption data to be synchronized with the video signal by using the synchronization data. Can be.

According to an embodiment, the first display control unit transmits an I-frame to the second display control unit together with the caption data, and the second display control unit uses the I-frame to fast forward, rewind, or random play. The caption data and the video signal may be controlled to be synchronized with each other upon input.

In operation S503, the second display controller receives the caption data and controls the input caption data to be output to the second display unit.

The second display unit outputs the caption data.

In this case, when a plurality of subtitle data are selected, the first display controller outputs the plurality of selected subtitle data to the second display controller, and the second display controller outputs the selected plurality of subtitle data to the second display unit. You can control the output.

In addition, according to an exemplary embodiment, a plurality of caption data may be selected, and a plurality of second display controllers and the second display controller may be provided. In this case, the first display controller may display the plurality of selected caption data, respectively. Can be output to

6 is a block diagram showing the configuration of a display device according to an embodiment of the present invention.

Referring to FIG. 6, a display device according to an embodiment of the present invention may include a first display controller 601, a first display unit 602, a connection unit 603, a second display control unit 604, and a second display unit. And 605.

The first display controller 601 controls the video signal received from the outside or stored in the internal storage means to be output to the first display unit 602.

In this case, the video signal includes a broadcast signal received through a terrestrial wave, cable or satellite broadcast, a video signal received from an external device, and content transmitted through an internet network.

The first display controller 601 outputs a predetermined user interface, selects one or more caption data from the user, and outputs the selected caption data to the second display controller 604.

In this case, the first display controller 601 may output a user interface to receive at least one subtitle data to be output as subtitles or at least one language to be output as subtitles.

In the present invention, the caption data is a concept including all data that is output in synchronization with the video signal. The caption data may include data defined as a textual representation of a conversation included in the video signal or inserted by a content producer. For example, the subtitle data may be added with information designed to allow the hearing impaired viewers to follow the conversation.

The caption data may be received in a broadcast signal together with a video signal, may be transmitted from an external device, may be stored in predetermined storage means included in the display device, or may be stored in a network (eg, a predetermined content server). For example, it may be transmitted through the Internet.

8 is a diagram illustrating an embodiment of a user interface for selecting subtitle data according to the present invention.

Referring to FIG. 8, a display device according to an embodiment of the present invention may output a user interface for selecting subtitle data to be output, and the user may select one or more of the plurality of subtitle data.

For example, the user may select subtitle data of reference numeral 802 and reference numeral 803 among the plurality of subtitle data 801, 802, and 803 output from the user interface.

9 illustrates an embodiment of a user interface for selecting one or more languages to be output as subtitles according to the present invention.

Referring to FIG. 9, a display device according to an embodiment of the present invention outputs a user interface for selecting a language of caption data, and a user may select one or more of a plurality of languages.

For example, the user may select 'Korean' 801 and 'English' 802 in the user interface.

The first display controller 601 outputs the selected caption data or the caption data corresponding to the selected language to the second display controller 604.

The second display controller 604 receives the caption data from the first display controller 601 and controls the input caption data to be output to the second display unit 605.

In this case, when a plurality of subtitle data are selected or selected in a plurality of languages, the first display controller 601 outputs the selected plurality of subtitle data to the second display controller 604 and the second display. The controller 604 may output all of the selected plurality of caption data to the second display unit 605.

In this case, the plurality of caption data may be output to predetermined areas of the screen of the second display unit 605, respectively.

For example, when the user selects 'Korean' and 'English' as the caption data in the user interface, the Korean caption data is output to a predetermined area of the second display unit, and the English caption data is output to another area of the second display unit. can do.

In addition, the first display control unit 601 transmits the synchronization data together with the caption data to the second display control unit 604, and the second display control unit 604 uses the synchronization data to display the caption data. It can be controlled to be synchronized with the video signal.

Further, according to an embodiment, the first display controller 601 transmits an I-frame to the second display controller 604 together with the caption data, and the second display controller 604 uses the I-frame. The caption data and the video signal may be controlled to be synchronized when the fast forward, rewind, or random play is input.

Intra-coded frame is data used for random access of data, and when the user selects a fast forward, rewind, or random play input, the second display control unit receives an I-frame after receiving a control signal. After referring to the frame, the position of the caption data corresponding to the playback position of the video signal may be determined.

On the other hand, there may be a plurality of second display unit for outputting the caption data, Figure 7 is a view showing an embodiment employing a plurality of second display unit in the display device according to the present invention.

Referring to FIG. 7, a display device according to an embodiment of the present invention may include a first display controller 701, a first display unit 702, a connection unit 703, a plurality of second display controllers 704 and 706, A plurality of second display units 705 and 707 may be included.

When a plurality of subtitle data are selected in the user interface output from the first display control unit 701 or a plurality of languages of the subtitle data are selected, the first display control unit 701 displays the plurality of selected subtitle data. The output may be output to each of the second display controllers 704 and 706.

The second display controllers 704 and 706 receiving the caption data output the caption data to the connected second display units 705 and 707, respectively.

For example, when the user selects 'Korean' and 'English' as the caption data in the user interface, the second display unit 705 outputs the Korean caption data and the English caption data is displayed in the second display unit 707. Can be output to

In this case, since the synchronous data and the i frame are transmitted to each of the second display controllers, the video signal output to the first display unit and the caption data output to the second display unit are synchronized, respectively, and the user fast-forwards, When rewinding or random playback input is selected, the caption data and the video signal can be synchronously output.

In addition, when the user selects each display unit and selects a fast forward, rewind, or random play input according to an embodiment, a control signal corresponding to the corresponding function is transmitted to the selected display control unit and output to the selected display unit. Only subtitle data may be controlled and output according to the corresponding function.

FIG. 10 is a diagram illustrating an embodiment in which subtitle data is output to a second display unit according to the present invention.

Referring to FIG. 10, the display device according to an embodiment of the present invention outputs a video signal to the first display unit 1001, and outputs a plurality of caption data synchronized with the second display unit 1002 and 1003. You can also output each to the area. In addition, when there are a plurality of second display units, a plurality of subtitle data may be output to each of the second display units 1002 and 1003 while outputting a video signal to the first display unit 1001.

For example, when the user selects 'Korean' and 'English' as the caption data in the user interface, the Korean caption data is output to the first area 1002 of the second display unit, and the English caption data is output to the second display unit. It can output to the other area 1003.

In addition, when the user selects 'Korean' and 'English' as the subtitle data in the user interface, the second display unit 1002 outputs the Korean subtitle data, and the second display unit 1003 outputs the English subtitle data. can do.

Therefore, the present invention has the effect of providing the caption data composed of a plurality of languages while allowing the user to watch the caption data without being disturbed by the viewing of the video signal.

For example, the present invention allows a user to watch a video signal clearly on the entire screen of the first display unit 1001, while allowing a plurality of subtitle data to be viewed on the second display units 1002 and 1003. The user's convenience can be significantly increased, such as helping to develop abilities or allowing each member of a multicultural society to enjoy a video signal.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

1 is a diagram illustrating an embodiment of outputting caption data in a display device of the related art.

2 is a diagram illustrating a process of outputting caption data in a display device of the related art.

3 shows an embodiment of a display device according to the invention.

4 is a cross-sectional view of a display device according to an embodiment of the present invention.

5 is a flowchart illustrating a process of displaying caption data according to an embodiment of the present invention.

6 is a block diagram illustrating a configuration of a display device according to an embodiment of the present invention.

7 is a view illustrating an embodiment employing a plurality of second display units in the display device according to the present invention.

8 illustrates an embodiment of a user interface for selecting subtitle data according to the present invention.

9 illustrates an embodiment of a user interface for selecting one or more languages to be output as subtitles according to the present invention.

FIG. 10 illustrates an embodiment in which caption data is output to a second display unit according to the present invention; FIG.

<Explanation of symbols for main parts of the drawings>

601: first display controller

602: first display unit

603: connection

604: second display control unit

605: second display unit

Claims (16)

In the caption display method of the display device comprising at least two or more independent display unit, Receiving at least one subtitle data from a user; Outputting the selected caption data to a second display controller by the first display controller; Receiving the caption data by the second display controller and controlling the input caption data to be output to a second display unit; And Outputting the caption data on the second display unit; Caption display method of a display device comprising a. The method of claim 1, Outputting a video signal to a first display unit by the first display controller; Subtitle display method of the display device further comprising a. The method of claim 1, The step of selecting one or more subtitle data from the user, Receiving one or more languages to be output as subtitles from a user, The outputting of the selected caption data from the first display controller to the second display controller may include: And outputting caption data corresponding to the selected language from the first display controller to a second display controller. The method of claim 1, The caption data is selected in plurality, The first display control unit outputs the plurality of selected subtitle data to the second display control unit, and the second display control unit controls to output all of the plurality of selected subtitle data to the second display unit. How to display captions on display devices. The method of claim 1, The caption data is selected in plurality, The second display controller and the second display unit is a plurality, And the first display controller outputs the plurality of selected caption data to each of the plurality of second display controllers. The method of claim 2, The first display controller transmits synchronization data together with the caption data to the second display controller, and the second display controller controls the caption data to be synchronized with the video signal by using the synchronization data. Subtitle display method on a display device. The method of claim 2, The first display control unit transmits an intra-coded frame along with the caption data to the second display control unit, and the second display control unit uses the I-frame to fast forward, rewind, or randomly. And controlling the caption data and the video signal to be synchronously outputted during playback input. The method of claim 1, And the second display unit is attached to one surface of the display device, and the first display control unit and the second display control unit are connected to a network through a predetermined connection unit. The first display control unit selecting one or more subtitle data from a user and outputting the selected subtitle data to a second display control unit; A second display controller which receives the caption data and controls the input caption data to be output to a second display unit; And A second display unit for outputting the caption data Display device comprising a. 10. The method of claim 9, And the first display controller controls the video signal to be output to the first display unit. 10. The method of claim 9, The first display control unit receives at least one language to be output as a subtitle from a user, And the first display controller outputs caption data corresponding to the selected language to a second display controller. 10. The method of claim 9, The caption data is selected in plurality, The first display control unit outputs the plurality of selected subtitle data to the second display control unit, and the second display control unit controls to output all of the plurality of selected subtitle data to the second display unit. Display devices. 10. The method of claim 9, The caption data is selected in plurality, The second display controller and the second display unit is a plurality, And the first display controller outputs the plurality of selected caption data to each of the plurality of second display controllers. The method of claim 10, The first display controller transmits synchronization data together with the caption data to the second display controller, and the second display controller controls the caption data to be synchronized with the video signal by using the synchronization data. Display device. The method of claim 10, The first display controller transmits an intra-coded frame to the second display controller together with the caption data, and the second display controller uses the I-frame to fast forward, rewind, or randomly. And controlling the subtitle data and the video signal to be synchronously outputted during reproduction input. 10. The method of claim 9, And the second display unit is attached to one surface of the display device, and the first display control unit and the second display control unit are connected to a network through a predetermined connection unit.

Images