KR101437694B1 - Display device and control method thereof - Google Patents

Abstract

A display device according to an exemplary embodiment of the present invention is a display device for receiving and displaying image data input from an external image playback device, the display device comprising: a media interface for receiving image data and additional information of the image data from the image playback device; A menu screen generating unit for generating a menu screen for setting image quality of image data received through the media interface unit; And a controller for controlling the display of the menu screen for setting the picture quality of each section of the video data using the received additional information.

HDMI-CEC, picture quality

Description

[0001] The present invention relates to a display apparatus and a control method thereof,

The present invention relates to a display device, and more particularly, to a display device having an HDMI-CEC function and a control method thereof.

The present invention relates to a display device, and more particularly, to a display device having an HDMI CEC function and a control method thereof. Of course, the display device may include a portable video device (for example, a mobile phone, a PDA, etc.) capable of receiving a broadcast signal, in addition to a general television.

As the display device evolves, it has a function of displaying A / V sources and the like which are applied from various external devices in addition to a classic function of outputting only TV broadcasts.

The external device may be, for example, a DVD player (Digital Video Disk player), a STB (Set Top Box), or the like.

On the other hand, the display device and the external device can be connected by, for example, an HDMI cable. The HDMI (High Definition Multimedia Interface) also refers to a broadcasting standard for protecting multimedia contents on a high definition television (HDTV).

Furthermore, in recent years, display devices having a function of HDMI-CEC (Consumer Electronics Control, hereinafter abbreviated as CEC) have emerged.

The HDMI CEC function refers to a function of controlling the devices connected to each other by using the pin 13 of the HDMI cable as a control line.

For example, by using the HDMI CEC function, a play function, a stop function, and a skip function of a DVD player, an STB, etc. (transmitting side) connected by an HDMI cable on the display device side (receiving side) Can be directly controlled.

However, currently available HDMI-CEC functions include listening to a disc, direct control of an external device, selection of an external device, and power control of an external device. In a situation where the importance of the current image quality is increasing, There is a demand for a display device and a control method thereof that can easily set an optimal image quality between different devices such as a device and a display device.

In the embodiment of the present invention, a UI (User Interface) for setting the detailed image quality of the image data provided from the currently connected external device is provided to provide convenience for the user.

In addition, in the embodiment of the present invention, it is possible to automatically set an image quality per section of the image data provided from the currently connected external device by using the preset image quality data.

A display device according to an exemplary embodiment of the present invention is a display device for receiving and displaying image data input from an external image playback device, the display device comprising: a media interface for receiving image data and additional information of the image data from the image playback device; A menu screen generating unit for generating a menu screen for setting image quality of image data received through the media interface unit; And a controller for controlling the display of the menu screen for setting the picture quality of each section of the video data using the received additional information.

In addition, a display device according to an embodiment of the present invention is a display device for receiving and displaying image data input from an external image playback device, the display device comprising: a media interface for receiving image data and additional information of the image data from the image playback device; part; A memory unit for storing picture quality setting data for each section of the video data; And a control unit for extracting image quality setting data corresponding to the additional information of the received image data from the memory unit and reproducing the received image data by applying the extracted image quality setting data for each section.

According to another aspect of the present invention, there is provided a method of controlling a display apparatus for receiving and displaying image data provided from an external image reproduction apparatus, the method comprising: Receiving additional information of the video data; Displaying a menu screen for setting image quality for each section of the image data using the additional information of the received image data; And setting an image quality for each section of the image data on the displayed menu screen.

According to another aspect of the present invention, there is provided a method of controlling a display apparatus for receiving and displaying image data provided from an external image reproduction apparatus, the method comprising: Receiving additional information of the video data; Extracting picture quality setting data for each section corresponding to the additional information of the received video data; And reproducing the received image data by applying the extracted image quality setting data for each section.

The display device and the control method thereof according to the embodiment of the present invention set the image quality for each section of the image data and apply the set image quality data by intervals using the HDMI-CEC to provide the user with the image data of the optimum image quality There is an effect that can be.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It should be understood, however, that there is no intention to limit the scope of the present invention to the embodiment shown, and that other embodiments falling within the scope of the present invention may be easily devised by adding, Can be proposed.

Although the terms used in the present invention are selected as general terms that are widely used at present, there are some terms selected by the applicant in specific cases. In this case, since the meaning is described in detail in the description of the present invention, It is to be understood that the present invention should be grasped as a meaning of a non-term.

FIG. 1 is a block diagram illustrating a configuration of a display apparatus according to an exemplary embodiment of the present invention. FIG. 2 is a view for explaining an image quality setting method according to an exemplary embodiment of the present invention. FIG. 3 and FIG. Fig. 8 is a diagram for explaining a control method of a display device according to an example.

First, a system according to the present invention comprises an image reproducing apparatus 10 and a display apparatus 100 as shown in FIG.

The display device 100 is a typical example of a TV, and receives and outputs a video signal and / or a voice signal provided through the video reproducing device 10.

The image reproducing apparatus 10 may be a device such as a DVD player, a divick player, or the like that can reproduce the media and display the image on the display device 100

The operation of the image reproducing apparatus 10 is controlled through a media interface unit 110 included in the display apparatus and the image reproducing apparatus 10 transmits an HDMI-CEC (High Definition Multimedia Interface-Consumer Electronic Control ) Function, it can be controlled using the HDMI-CEC.

The HDMI is a new digital interface based on DVI, and is used in A / V devices such as a DVD player, an HDTV, and a set-top box in a format in which video and audio signals are integrated into a single digital interface.

This HDMI supports standard, multi-channel audio signals as well as standard, extended or HD video, and is capable of transferring uncompressed digital video signals up to 6 Gbps per second to a video display device via a single terminal. .

The display device 100 receives and displays the image data input from the connected image reproducing device 10. [

Hereinafter, a detailed configuration of the display device 100 will be described.

1, the display apparatus 100 includes a media interface 110 for receiving image data and additional information of the image data from the image reproducing apparatus 10, A menu screen generating unit 120 for generating a menu screen for setting the image quality of the image data received through the menu screen generating unit 120 and a position processing unit for signal processing for displaying the menu screen generated through the menu screen generating unit 120 A display unit 140 for displaying image data subjected to signal processing through the image processing unit 130, and a display unit 140 for displaying a menu screen for setting image quality for each section of the image data using the received additional information A controller 150 for controlling the image quality of each section of the received image data according to the received image data, And a memory unit 160 for storing the image quality setting data for each section.

The media interface unit 110 is connected to the image reproducing apparatus 10 and receives image data provided from the connected image reproducing apparatus 10 and additional information of the image data.

Here, the media interface unit 110 is composed of HDMI, which is a new digital interface based on DVI. It is a digital interface that integrates video and audio signals into one digital interface. The HDMI interface is a DVD player, an HDTV, a set- Used for A / V devices.

In addition, HDMI is composed of three independent communication channels such as Transmission Minimized Differential Signaling (TMDS), Display Data Channel (DDC) and Consumer Electronics Control (CEC) It can transmit and receive.

In particular, the CEC is an additional protocol for performing high-level control functions in the HDMI, and can be used in a small transmission speed and a small memory environment.

Here, the additional information of the video data includes title information of the video data, running time information, detailed time information of each section, story, character information, viewing grade (viewing rating information), and the like

The menu screen generating unit 120 generates a menu screen for setting the detailed image quality of each of the video data using the additional information of the video data received through the media interface unit 110. [

At this time, the menu screen is displayed only when there is no image quality setting data corresponding to the received image data.

That is, the control unit 150 determines whether the image quality setting data corresponding to the title information of the received image data is present in the memory unit 160, and if the image quality setting data corresponding to the title information of the image data is stored in the memory unit 160 If there is no image quality setting data to be displayed, the menu screen is generated and displayed.

If the image quality setting data corresponding to the title information of the received image data exists in the memory unit 160, the control unit 150 extracts corresponding image quality setting data stored in the memory unit 160, Set the picture quality of each section of video data.

First, when there is no image quality setting data corresponding to the title information of the received image data, the image quality setting operation for each section of the image data will be described.

The controller 150 controls the display of the menu screen for setting the image quality of the received image data.

At this time, the controller 150 controls the display of the menu screen for setting the image quality of the image data using the detailed time information of each section included in the additional information of the received image data.

That is, as shown in FIG. 2, the menu screen 200 generated by the menu screen generating unit 120 displays detailed time information for each section of the image data and items for setting image quality for each section.

The detailed time information for each interval means time information for each track of the video data.

That is, generally, the image data provided from the image reproducing apparatus is composed of at least one track, and the at least one track-specific time information is included in the additional information.

Accordingly, the user can set a desired image quality for each track of the image data. Here, the image quality includes a video mode, contrast, brightness, color, sharpness, tint, color temperature, and the like.

In addition, the user can set a desired image quality for each track of the image data, divide one track into a plurality of sections, and set a desired image quality for each of the divided sections.

In addition, the memory unit 160 is allocated a separate area for storing image quality setting data for each section corresponding to the title information of the received image data, and the set image quality setting data for each section is stored in the memory unit 160, And is stored in the memory unit 160 together with the title information.

The generated menu screen is signal-processed through the image processing unit 130 and displayed on the display unit 140.

The image processing unit 130 includes an MPEG-2 decoder, a scaler for converting a video signal to a vertical frequency, a resolution, an aspect ratio, etc., according to an output standard of the display unit 140, And a mixing unit for mixing image data input from the input unit.

The display unit 140 may be applied to various types of display modules such as a digital light processing (DLP), a liquid crystal display (LCD), and a plasma display panel (PDP).

The controller 150 controls the playback of the received image data using the set image quality setting data for each section.

That is, the controller 150 controls the reproduction of the image data by applying the image quality setting data according to the reproduction section currently being reproduced, periodically applies the image quality setting data corresponding thereto according to whether the reproduction section currently being reproduced is changed To change the default picture quality.

If the image quality setting data corresponding to the title information of the received image data is stored in the memory unit 160, the control unit 150 extracts the stored image quality setting data, As shown in FIG.

That is, if there is image quality setting data corresponding to the received image data, the controller 150 plays back the received image data by applying the image quality setting data, and transmits the image quality setting data corresponding to the received image data A menu screen for setting image quality for each section of the received image data is displayed.

In addition, the control unit 150 stores the image quality setting data for each section set on the menu screen in the memory unit 160 together with the title information of the image data, so that when the image data is re- The optimum image quality according to the image data can be automatically set.

As described above, the display apparatus according to the embodiment of the present invention sets the image quality for each section of the image data and applies the set image quality data by intervals using the HDMI-CEC to provide the user with the image data of the optimum image quality have.

The control method of the display apparatus according to the embodiment of the present invention is as shown in FIG. That is, FIG. 3 is a flowchart for explaining a step-by-step method for setting picture quality for each section of the video data when there is no picture quality setting data corresponding to currently inputted video data.

First, a video reproducing apparatus is connected (S100).

Then, the image data and the additional information of the image data are received from the connected image reproducing apparatus (S110).

Then, a menu screen for setting image quality of each section of the image data is displayed using the additional information of the received image data (S120). That is, a menu screen for setting the image quality corresponding to each section of the image data is displayed based on detailed time information of each section included in the additional information.

Then, an image quality is set for each section of the image data using the displayed menu screen (S130).

Then, the title information included in the additional information of the image data and the image quality setting data for each section are stored (S140).

In addition, as shown in FIG. 4, the image data reproducing method using the image quality setting data set as described above connects the image reproducing apparatus first (S200).

Then, the image data and the additional information of the image data are received from the connected image reproducing apparatus (S210).

Then, it is determined whether there is image quality setting data corresponding to the received additional information (S220). That is, it is determined whether the image quality setting data corresponding to the title information of the image data is stored.

If it is determined in operation S220 that the image quality setting data corresponding to the additional information exists, the image quality setting data for each section is extracted in operation S230.

In step S240, the image data is reproduced by applying the image quality setting data according to the current playback section using the extracted image quality setting data for each section.

Next, the playback period of the video data currently being played is checked periodically, and the preset video quality is changed based on the video quality setting data (S250).

On the other hand, if it is determined in step S220 that the image quality setting data corresponding to the additional information does not exist, the process proceeds to step S120.

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

2 is a diagram for explaining a picture quality setting method according to an embodiment of the present invention;

3 and 4 are diagrams for explaining a control method of a display device according to an embodiment of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

10: image reproducing apparatus 100: display apparatus

110: media interface unit 120: menu screen creation unit

130: image processor 140:

150: control unit 160: memory unit

Claims (10)

A display device for receiving and displaying image data input from an external image reproducing apparatus, A media interface for receiving image data and additional information of the image data from the image reproducing apparatus; A menu screen generating unit for generating a menu screen for setting image quality of image data received through the media interface unit; And And a controller for controlling the display of a menu screen for setting image quality for each section of the image data using the received additional information. The method according to claim 1, Wherein the additional information includes title information of the image data and detailed time information of each of the sections of the image data. 3. The method of claim 2, And a memory unit for storing image quality setting data for each of the sections in association with the title information of the image data. A display device for receiving and displaying image data input from an external image reproducing apparatus, A media interface for receiving image data and additional information of the image data from the image reproducing apparatus; A memory unit for storing picture quality setting data for each section of the video data; And And a controller for extracting image quality setting data corresponding to the additional information of the received image data from the memory unit and reproducing the received image data by applying the extracted image quality setting data for each section. 5. The method of claim 4, Wherein the control unit periodically grasps the playback period of the video data, and changes the predetermined video quality based on the video quality setting data according to the detected playback period. A control method of a display apparatus for receiving and displaying image data provided from an external image reproducing apparatus, Receiving image data and additional information of the image data from an image reproducing apparatus connected to the display device; Displaying a menu screen for setting image quality for each section of the image data using the additional information of the received image data; And And setting an image quality for each section of the image data on the menu screen to be displayed. The method according to claim 6, The step of displaying the menu screen And displaying a menu screen for setting / editing image quality of each section of the received image data using detailed time information of each section included in the received additional information. 8. The method of claim 7, Further comprising the step of storing the title information of the image data included in the received additional information and the image quality setting data for each predetermined section. A control method of a display apparatus for receiving and displaying image data provided from an external image reproducing apparatus, Receiving image data and additional information of the image data from an image reproducing apparatus connected to the display device; Extracting picture quality setting data for each section corresponding to the additional information of the received video data; And And reproducing the received image data by applying the extracted image quality setting data for each section. 10. The method of claim 9, The step of reproducing the received video data Determining a playback period of the video data that is currently being played back periodically; And applying the image quality setting data corresponding to the detected playback period.

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