KR20100138573A - Method for osd offering in display apparatus - Google Patents

Abstract

PURPOSE: A method for providing OSD(On Screen Display) of a display device is provided to change a display location of an OSD according to a state of an image, thereby efficiently transmitting the image and additional information OSD without covering an important part of the image. CONSTITUTION: The first image is displayed(S200). If a display condition of the second image is sensed, the second image is displayed through a location determined according to a state of the first image(S250). The first image is displayed on the entire display screen. The second image is displayed through one area of a display screen. A display location of the second image is determined by screen color mixing information based on color distribution of the first image.

Description

Method for providing OSD of display apparatus {Method for OSD offering in Display apparatus}

The present invention relates to a display apparatus, and more particularly, to a method for providing an OSD of a display apparatus, which can change a display position of an OSD provided at a fixed position according to a state of an image output through the display apparatus.

The display apparatus is an apparatus for displaying an image signal obtained by receiving an image signal from the outside or reproducing the recording medium.

In addition, the display apparatus provides an OSD (On Screen Display) for displaying various functions and information of a reproduced image on a screen. The OSD consists of a mixture of text, symbols, or graphical elements and is superimposed on an image or displayed alone.

On the other hand, in the case of the OSD that is displayed overlapping with the image, it displays information about the various functions supported by the display device, the information of the displayed image and the additional information provided by the viewing channel, thereby providing information on other command inputs and images. It will support convenient video viewing with reference.

However, continuous OSD display due to the frequent input of the user may interfere with the user's viewing of the image because the OSD overlaps the main part of the image.

For example, in the case of watching TV, the main title or simple information of the video is mainly displayed on the upper right side of the screen, and the changed channel information according to the channel change is displayed at a similar position, so that the user can change the channel information and the main title of the video. You will not be able to see all of them.

In addition, when data broadcasting is provided on a channel that is currently being viewed, an OSD provided from a broadcasting station is displayed through a fixed area. In this case, when an image of a color similar to the provided OSD is provided to the fixed area, the user There is a problem in that the OSD cannot be easily identified.

According to an embodiment of the present invention, the display position of the OSD is changed according to the state of the image displayed through the display device, so that the image and the OSD information can be efficiently delivered to the user without selecting an important part of the image.

In addition, in the case of an OSD provided by a broadcasting station and displayed at a fixed position, the OSD may display a self-produced OSD corresponding to the OSD provided by the broadcasting station through a newly determined display position.

The technical problems to be achieved in the proposed embodiment are not limited to the technical problems mentioned above, and other technical problems not mentioned above are clear to those skilled in the art to which the proposed embodiments belong from the following description. Can be understood.

OSD providing method of the display device according to an embodiment of the present invention comprises the steps of: displaying a first image; And if the display condition of the second image is detected, displaying the second image through a specific position determined according to the state of the first image.

According to the OSD providing method of the display device according to an embodiment of the present invention, by changing the display position of the OSD for providing a variety of additional information according to the state of the image displayed through the display device, without covering the important part of the image There is an effect that can efficiently deliver the image and the additional information OSD to the user.

The proposed embodiment will be described.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the embodiments presented, and other inventions which are further deteriorated by addition, change, deletion, etc. of other components, or other embodiments included within the scope of the present invention can be easily made. I can suggest.

The term used in the present invention was selected as a general term widely used as possible, but in some cases, the term is arbitrarily selected by the applicant, in which case the meaning is described in detail in the description of the invention, the name of a simple term It should be clear that the present invention is to be understood as a meaning of terms.

In other words, in the following description, the word 'comprising' does not exclude the presence of other elements or steps than those listed.

1 is a diagram illustrating a configuration of a display apparatus according to an exemplary embodiment of the present invention.

As shown in FIG. 1, the display apparatus according to an exemplary embodiment of the present invention includes an image receiving unit 100, an image processing unit 110, a display unit 120, a storage unit 130, a screen color determination unit 140, and It is configured to include a controller 150.

The image receiver 100 receives an image signal transmitted from the outside.

That is, the image receiver 100 includes a digital tuner for receiving a digital broadcast signal, an analog tuner for receiving an analog broadcast signal, a digital external signal input terminal and an analog external signal input terminal to which an external device is connected, and a personal video recorder. ) And a digital recorder such as a digital video recorder (DVR).

Here, the digital external signal input terminal may be a terminal to which a digital external player such as a digital cable broadcast signal input terminal or a DVD may be connected, and the analog external signal input terminal may be a VCR signal input terminal or an input terminal for analog cable broadcast signal. .

The digital tuner tunes a transport stream of a desired channel by user selection among transport streams (TSs), which are digital broadcast signals input through a digital broadcast antenna. The analog tuner tunes a video program of a desired channel by user selection among video programs, which are analog broadcast signals input through an analog broadcast antenna.

Accordingly, the data received through the image receiving unit 100 may include analog television broadcasting programs, digital broadcasting programs, playback programs input from an external player, recording programs, and cable broadcasting programs in real time. Here, the broadcast data includes a video signal, an audio signal, and data in the case of a digital signal, and includes a video signal and an audio signal in the case of an analog signal.

In addition, the image receiving unit 100 is an image displayed through an external device such as a TV, personal computer, PDA (Personal Digital Assistants), or a mobile phone is compressed using a JPEG compression module and then via Bluetooth or WLAN. It may also serve to receive the transmitted digital image data. Therefore, the image receiving unit 100 may include a Bluetooth receiving module or a wireless LAN receiving module. Meanwhile, in the present embodiment, the Bluetooth or wireless LAN transmission method is taken as an example, but is not particularly limited as long as it is a communication standard for wirelessly connecting to a display device and a computer, a mobile terminal, or a home appliance that enables real-time communication in two directions. .

In addition, the image receiving unit 100 may include a USB port or a memory card slot to receive recorded image data from an image recording medium such as a digital camera. Here, the memory card may be a Compact Flash Card (CF) card, an SM Card (Smart Media Card), a Memory Stick, a MMC Card (Multimedia Card), a Micro Drive, an XD Picture Card, or May include an SD card (Secure Digital Card)

The data output through the image receiving unit 100 is signal-processed through the image processing unit 110 and then displayed on the display unit 120.

In this case, the image processing unit 110 includes a video processing unit and an audio processing unit, and the video processing unit converts the video data into an MPEG-2 decoder and a vertical frequency, resolution, aspect ratio, etc. according to the output standard of the video output device. It includes a scaler.

In addition, the image processor 110 may further include an OSD generator (not shown) which generates OSD (On Screen Display) data and transmits the generated OSD to the display unit 120. The OSD data may be a text message or a graphic message. The text message may be additional information about the displayed data. In addition, the OSD data may be channel information on a currently selected channel or information corresponding to other additional functions included in the channel. In this case, information corresponding to the additional function includes whether data broadcasting is provided, whether 5.1 CH is supported, and other subtitle information according to the selected channel.

Hereinafter, an image received through the image receiving unit 100 and displayed through the display unit 120 is called a first image, and other images except the first image are referred to as a second image. That is, the OSD data may be representatively included in the second image.

In addition, the display unit 120 may be applied to various types of display modules such as digital light processing (DLP), liquid crystal display (LCD), plasma display panel (PDP), and the like.

The storage unit 130 stores various driving programs for the operation of the display apparatus. In addition, the storage unit 130 may store a second image that is manufactured in preparation for various situations. In this case, the storage 140 may be implemented by an electrically erasable programmable read-only memory (EEPROM) and a hard disk drive (HDD) which is a mass storage medium.

The screen color determination unit 140 checks the screen color status of the first image displayed through the display unit 120.

That is, a general display device provides an ADC calibration function.

The ADC calibration function includes a video memory corresponding to the resolution size of the first image (for example, 1920 * 1080), and determines an RGB value corresponding to each coordinate value of the first image by using the video memory. (235)) This function adjusts the image quality of the input video by setting the difference 219 between the color and the black (16) color as a target value. this is Generally, it is named after pattern recognition and used.

That is, since the display apparatus can generally read the RGB values of the respective coordinates of the input image, the color distribution of each region of the first image can be determined.

As a result, the screen color determination unit 140 reads the RGB values of the respective areas of the input first image to check the color distribution, and accordingly the screen color information of the first image.

In addition, the screen color determination unit 140 may calculate a histogram indicating the luminance distribution of the first image.

That is, the screen color determination unit 140 divides the first image into a predetermined number of cells, designates a predetermined number of cells as one block based on the divided cells, and calculates a histogram for each designated block. can do. The screen color determination unit 140 may identify a region having the lowest importance among the first images, that is, a region corresponding to a histogram indicating a margin, based on the calculated histogram.

The controller 150 controls the overall operation of the display apparatus.

That is, the controller 150 controls the received first image to be displayed through the entire area of the display unit 120, and when the display condition of the second image is detected, the screen color determination unit 140. Based on the result of the determination, the second image is displayed through a specific area in which the brightest color image is displayed among the entire areas of the display screen.

Here, the display condition of the second image includes all the conditions under which other images except the first image may be displayed on the first image. For example, the display condition of the second image may include a case in which an event such as channel switching, volume level change, menu item selection, etc. occurs, and additional data is included in data received through the image receiving unit 100. If so, it may be a condition for notifying the presence or absence of the additional data.

Hereinafter, an OSD providing method of a display apparatus according to an exemplary embodiment of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

2 is a flowchart for explaining a step-by-step method of providing an OSD of a display apparatus according to a first embodiment of the present invention.

As shown in FIG. 2, in the OSD providing method of the display apparatus according to the first embodiment of the present invention, the image receiving unit 100 receives a first image transmitted from the outside, and the received first image is an image processing unit ( The signal is processed through 110 and displayed on the display 120 (step 200).

The controller 150 determines whether a condition for displaying the second image is detected in the state where the first image is displayed (step 210). That is, the controller 150 checks whether an event such as a channel change command and volume level change has occurred from the outside or other additional information is provided in the channel in which the first image is provided.

If the condition for displaying the second image is detected, the controller 150 outputs a control signal so that screen color information according to the color distribution of the displayed first image is checked, and the screen color determination unit 140 is provided. In operation 220, the screen color matching information according to the color distribution of the first image is checked according to the control signal of the controller 150. That is, the screen color determination unit 140 checks the RGB level value of each coordinate value of the first image, and confirms color information of the corresponding coordinates.

In operation 230, the controller 150 determines an area having the brightest color based on the screen color information determined by the screen color determination unit 140. That is, the controller 150 checks the area where the RGB value closest to the white color is detected based on the checked RGB value, and checks the coordinate value of the checked area (step 240). Here, the brightest color region may be the least important portion of the first image, for example, a portion representing a margin of the first image or another background image that is not an actual character. The part where it becomes will have the brightest color.

In addition, the controller 150 may determine a position where the second image is to be displayed according to color scheme information of the second image to be displayed instead of the area having the brightest color. That is, when the second image to be displayed is an image having a bright color, and the second image is displayed in a region having the brightest color in the first image, the second image to be displayed may have a color scheme similar to that of the first image and the second image. It may be difficult to identify the second image in the first image.

Accordingly, the controller 150 confirms screen color scheme information for the second image to be displayed according to the detected display condition of the second image, and accordingly, the color scheme information of the checked second image and the first image are determined. The region having the most difference according to the similarity of color scheme information for each region may be determined as the region where the second image is to be displayed.

Subsequently, the controller 150 displays the second image at the determined coordinate value, that is, the display position of the determined second image (step 250).

According to the display device and the OSD providing method according to an embodiment of the present invention as described above, by changing the display position of the OSD for providing various additional information according to the state of the image displayed through the display device, The image and additional information OSD can be efficiently delivered to the user without being obscured.

3 is a flowchart for explaining a step-by-step method of providing an OSD of a display apparatus according to a second embodiment of the present invention. Here, in the second embodiment, only the parts different from the first embodiment will be mainly described, and for the same parts as the first embodiment, the description of the first embodiment will be cited as it is.

In the first embodiment, the second image is generated by the display apparatus and displayed on the display position determined according to the screen color scheme of the first image.

However, in the second embodiment, the second image is received from the outside, the screen colorization information of the first image corresponding to the fixedly set position with respect to the received second image is confirmed, and accordingly, The second image is displayed or the third image produced by itself is displayed at the changed display position. The third image refers to an OSD image produced by the display apparatus in response to the received second image.

As shown in FIG. 3, in the OSD providing method of the display apparatus according to the second embodiment of the present invention, the image receiving unit 100 first receives a second image transmitted from the outside (step 300). Here, when the data broadcast is provided in the channel where the first image is displayed, the second image is OSD information produced for notifying that the broadcast station is providing data broadcast in the channel. Here, the conventional display apparatus merely receives the second image provided by the broadcasting station and simply displays the transmitted second image at a fixed display position. That is, the display position of the second image cannot be arbitrarily changed by the user.

 When the second image is received, the screen color determination unit 140 checks screen color scheme information on the first image being displayed at a position (fixed position) where the received second image is to be displayed (step 310). ).

The controller 150 compares the screen color scheme information of the identified first image and the screen color scheme information of the received second image, and determines whether the screen color scheme information of the two images has a similar value. Check (step 320). In this case, the controller 150 checks the recognition degree of the displayed image by overlapping each other substantially according to the color difference, and accordingly designates a color difference value of the degree that the user can normally recognize as a reference value. The controller 150 determines whether screen colorization information of the two images exceeds the specified reference value or has a difference within the reference value.

If the screen colorization information of the two images has a difference of more than a specified reference value, the controller 150 displays the received second image at the fixed location (step 330).

4 is a diagram illustrating a second image screen formed by an embodiment of the present invention.

As shown in FIG. 4, the first image received through the image receiving unit 100 is displayed through the entire area 400 of the display screen, and the first image is received through the area 410 of the display screen. The second image transmitted from the channel provided with the first image is displayed. Here, the second image is displayed at a location designated by the provider of the corresponding image.

In addition, if the screen color scheme information of the two images has a difference less than or equal to a specified reference value, the controller 150 checks screen color scheme information for the remaining areas except for the fixed set position (step 350).

In operation 350, the controller 150 determines the coordinate value of the region having the largest difference value between the screen color scheme information of the second image based on the identified color scheme information.

In addition, the controller 150 displays the third image produced corresponding to the received second image by using the checked coordinate value as a starting point (step 360).

5 is a diagram illustrating a third image screen formed according to an embodiment of the present invention.

As shown in FIG. 4, the first image received through the image receiving unit 100 is displayed through the entire area 500 of the display screen, and the first image is received through the area 510 of the display screen. A third image corresponding to the second image transmitted from the channel provided with the first image is displayed. Here, the third image is an image produced by the inside of the display apparatus, which is produced by referring to the transmitted second image.

According to the display device and the OSD providing method according to an embodiment of the present invention as described above, by changing the display position of the OSD for providing a variety of additional information according to the state of the image displayed through the display device, The image and additional information OSD can be efficiently delivered to the user without being obscured.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1 is a view showing the configuration of a display device according to an embodiment of the present invention.

2 is a flowchart for explaining a step-by-step method of providing an OSD of a display device according to a first embodiment of the present invention.

3 is a flowchart for explaining a step-by-step method of providing an OSD of a display device according to a second embodiment of the present invention.

4 is a view showing a second video screen formed by an embodiment of the present invention.

5 is a view showing a third video screen formed by an embodiment of the present invention.

Claims (9)

Displaying a first image; And If the display condition of the second image is detected, displaying the second image through a specific position determined according to the state of the first image. The method of claim 1, The method of providing an OSD of the display apparatus, wherein the first image is displayed through the entire area of the display screen. The method of claim 1, The method of providing an OSD of a display apparatus, wherein the second image is displayed through one region of a display screen. The method of claim 1, And a display position of the second image is determined by screen color scheme information according to the color distribution of the displayed first image. The method of claim 4, wherein And a display position of the second image is determined by the similarity between screen color scheme information of the second image and screen color scheme information of the first image. The method of claim 1, And the second image is an on-screen display (OSD) image transmitted from an external device. The method of claim 6, Displaying the second image And if the determined display position of the second image is a fixed position, displaying the transmitted second image at the position. The method of claim 6, And the second image to be displayed is an on-screen display (OSD) image of a self-produced image corresponding to the transmitted OSD image. The method of claim 8, Displaying the second image And if the display position of the determined second image is different from the fixedly set position, displaying the self-produced OSD image at the determined position.

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