KR100731384B1 - TV and method for controlling screen state using graphic - Google Patents

Abstract

The present invention provides a television receiver and method for displaying a screen state level to be adjusted by a user graphically, so that the user can set a desired screen state more accurately by visually viewing a graphic that changes according to the screen state level. A first step of setting a video state adjustment mode for adjusting the state level; If the video state adjustment mode is set, displaying a graphic information for setting a screen state level on a screen; And a third step of changing the state of the graphic by controlling the movement of the graphic forming the graphic information according to the screen state level input from the user on the displayed graphic information.

TV, contrast, brightness, sharpness, graphics

Description

TV set and method for controlling screen state using graphics

1 is a block diagram of a television receiver for adjusting a screen state using graphics according to an embodiment of the present invention.

2A illustrates a luminance bar graphic displayed on a television receiver in accordance with an embodiment of the present invention.

2B illustrates chrominance circle graphics displayed on a television receiver in accordance with an embodiment of the present invention.

2C illustrates a sharpness bar graphic displayed on a television receiver according to an embodiment of the present invention.

3A to 3C are flowcharts illustrating a method of adjusting a screen state using graphics in a television receiver according to an embodiment of the present invention.

4A and 4B are exemplary views illustrating a process of adjusting a screen state using graphics in a television receiver according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100: TV receiver 101: Tuner

102: broadcast signal processing unit 103: signal separation unit

104: audio decoder 105: video decoder

106: speaker 107: audio processing unit

108: amplifier 109: screen

110: video processing unit 111: storage unit

112: image processor 113: control unit

TECHNICAL FIELD The present invention relates to a television receiver, and more particularly, to a television receiver and a method capable of graphically displaying screen state levels such as contrast level, brightness level, color level, hue level and sharpness level input by a user. .

In addition to the rapid development of science and technology, the multimedia field combining various forms of information such as video and audio has become a digital form of information storage and existence in the rapid development of information and communication. Due to the development of MPEG technology, which is a compression standard for moving picture data for compressing digital video data that requires relatively large amounts of data, the size of digital video data is gradually getting smaller. Digital video and audio services have been provided in all fields, and digital devices for providing such services have emerged.

Among them, broadcasting and TV occupy an important place as an easy and effective information transmission medium in daily life, and thanks to the digital technology described above, video data and audio data are compressed and transmitted by MPEG technology, thereby adding a large amount of information. With the advent of digital TV, which can provide fast and reliable, more broadcasts can be easily enjoyed at home with clearer picture quality and more vivid sound. Accordingly, various techniques for providing clear image quality have been proposed. For example, Korean Patent Application Publication No. 2004-0019213 (published date: 2004.03.05) implements a video signal such as a movie or a video in an image information display device. In the case of displaying a bright image or a dark image at a time, an image signal control circuit including a sharpness correction circuit having a function of correcting sharply compensated for an unclear screen due to a dark and unclear outline is proposed.

As another example, Korean Patent Laid-Open Publication No. 2004-0107571 (published date: 2004.12.23) proposes a display apparatus and a method of controlling the brightness and / or contrast of a screen automatically based on a digital luminance signal. . A brief description will be made of a signal conversion unit for converting an analog image signal into a digital luminance signal and a color difference signal, and outputting the digital luminance signal having a level exceeding a predetermined saturation period among the digital luminance signals of one frame. A control unit for increasing the contrast level if present and reducing the contrast level if there is no digital luminance signal having a level belonging to the saturation period among the digital luminance signals of one frame; And a frame buffer for temporarily storing the digital luminance signal and the color difference signal.

In order to adjust a video screen of a TV or the like according to the conventional screen condition adjusting method as described above, the user has to adjust the screen state by pressing a button vaguely according to a predetermined control pattern using a remote controller, and so on. It was not possible to determine whether the desired screen state was set.

The present invention has been made to solve the above problems, an object of the present invention is to display the screen state level, such as contrast level, brightness level, color level, color density level and sharpness level input by the user through a graphic Provided are a television receiver and a method which can be displayed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a television receiver and a method for setting a desired screen state more accurately by visually displaying a graphic that changes according to the screen state level by displaying a screen state level to be adjusted by a user.

The present invention for achieving the above object, the storage means for storing the graphic information indicating the screen state level; When the video status control command is input, the graphic information for setting the screen status level is extracted and controlled from the storage means, and the displayed graphic information is formed according to the screen status level input from the user. Control means for controlling the movement of the graphics to change the graphics state; Image processing means for displaying graphic information stored in the storage means and an input video signal according to a control signal of the control means; And display means for displaying image and graphic information input through the image processing means according to the control signal of the control means.

The present invention provides a first step of setting a video state adjustment mode for adjusting a screen state level; If the video state adjustment mode is set, displaying a graphic information for setting a screen state level on a screen; And a third step of changing the state of the graphic by controlling the movement of the graphic forming the graphic information according to the screen state level input from the user on the displayed graphic information.

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

1 is a block diagram of a television receiver for adjusting a screen state using graphics according to an embodiment of the present invention.

Referring to FIG. 1, the television receiver 100 of the present invention includes a tuner 101 for tuning a plurality of broadcast channels received through different frequencies from a plurality of broadcast stations, and an analog broadcast received through the tuner 101. A signal for separating the demodulated analog broadcast signal into a digital broadcast signal after demodulating the signal, and a signal for separating the digital broadcast signal converted by the broadcast signal processor 102 into an audio signal and a video signal. Decoder (DEMUX) 103, an audio decoder 104 for decoding the audio signal separated by the signal separator 103, and a video for decoding the video signal separated by the signal separator 103 A decoder 105, a speaker 106 for outputting the audio signal to the outside, and an audio signal for making the audio signal decoded by the audio decoder 104 into an electrical signal suitable for the speaker 106. An error processing unit 107 and an amplifier 108 for amplifying and outputting an electric signal output from the audio processing unit 107 to the speaker 106 are provided.

The television receiver 100 of the present invention is adapted to display a screen 109 for displaying graphics representing various video and screen state levels, and a video signal decoded by the video decoder 105 suitable for the screen 109. The video processing unit 110 to form a form, the storage unit 111 for storing various information and to store predetermined menu items, and the image signal input from the video processing unit 110 is displayed on the screen 109 The image processing unit 112 receives a graphic indicating a screen state level and displays it on the screen 109, controls the reception and output of a broadcast signal, and displays the screen state level input through a remote controller or the like to the image processing unit 112. Graphic to indicate the screen state level stored in the storage unit 111 by controlling the image processor 112 to adjust the video screen according to the screen state level by setting. The image processing unit 112 is controlled to read and transmit the image to the image processing unit 112 and display the graphic on the screen 109, and display the graphic displayed on the screen 109 according to the screen state level input through the remote controller or the like. The control part 113 which changes a state is provided.

The storage unit 111 is a storage medium for storing various kinds of information, and may be implemented as a memory device such as RAM or EEPROM or a hard disk driver (HDD). An execution program for controlling the reception and output of a broadcast signal, an automatic channel program, and the like are set in the 111, and an execution program for displaying a screen state level according to the present invention on a graphic is set, and also a contrast level and a brightness level. Luminace bar graphics representing the color, chrominance circle graphics representing the color and hue levels, and sharpness bar graphics representing the sharpness level for each frequency are stored.

The image processor 112 displays the image signal input from the video processor 111 on the screen 109 under the control of the controller 113, adjusts the contrast of the image screen according to the set contrast level, and sets the brightness level. Adjust the brightness of the video screen according to the color level, adjust the color of the video screen according to the set color level, adjust the video screen pause according to the set hugh level, and adjust the sharpness of the video screen according to the set sharpness level. . The screen state levels such as contrast level, brightness level, color level, hue level and sharpness level are input by the user and set by the controller 113 to the image processor 112.

In addition, while the image is output on the screen 109, the controller 113 reads out the menu items, the luminance bar graphic, the chrominance circle graphic, the sharpness bar graphic, and the like stored in the storage 111. When the image is transmitted to the processor 112, the image processor 112 processes the menu items, the luminance bar graphic, the chrominance circle graphic, the sharpness bar graphic, and the like under the control of the controller 113 to display the screen 109. Display).

When the luminance bar graphic, the chrominance circle graphic, the sharpness bar graphic, or the like is displayed, and outputs a graphic control signal instructing the movement of each graphic from the control unit 113 to the image processing unit 112, the image processing unit 112 changes the state of the luminance bar graphic, the chrominance circle graphic, or the sharpness bar graphic according to the input graphic control signal.

The controller 113 controls channel tuning of the tuner 101 according to a channel selected through a remote controller, controls reception and output of a broadcast signal according to a user command, and displays a variety of information stored in the storage 111. The control unit 113 having such a function controls the movement of the luminance bar graphic, the chrominance circle graphic, or the sharpness bar graphic according to the screen state level input by the user as follows. .

When the menu button on the remote control is pressed by the user, the controller 113 reads out the menu items stored in the storage 111, passes them to the image processor 112, and outputs the menu items to the screen 109. 112).

When the menu items stored in the storage 111, for example, the "video status control" item and the volume control item are displayed, when the user selects the video status control item using the remote controller, the controller 113 Set the video status control mode to adjust the screen status level.

When the user enters a command for setting the contrast level and brightness level using the remote controller while the video state control mode is set, the control unit 113 transmits the luminance bar graphic as shown in FIG. 2A from the storage unit 111. Read and display on screen 109.

With the luminance bar graphic displayed, the user presses a button on the remote control, e.g. an arrow button to move the contrast bar and brightness bar to enter the contrast level and brightness level, so the user can press the arrow button on the remote control to display the contrast bar or When the movement of the brightness bar is instructed, the control unit 113 moves the contrast bar or the brightness bar up and down by a predetermined distance on the luminance bar whenever the arrow button is pressed.

The contrast bar and the brightness bar moved through the arrow buttons on the remote control indicate the contrast level and the brightness level, respectively. That is, the user inputs the contrast level and the brightness level by pressing the arrow buttons on the remote control. The level and the brightness level are shown to the user through the luminous bar graphic displayed on the screen 109. Therefore, when the user inputs the contrast level and the brightness level to be set by pressing the arrow buttons on the remote controller, the control unit 113 moves the contrast bar and the brightness bar by the input contrast level and the brightness level and simultaneously inputs the contrast level and the brightness level. The brightness level is set in the image processor 112.

If the user inputs a command for setting the color level and the pause level using the remote controller while the video state control mode is set, the control unit 113 stores the chrominance circle graphic as shown in FIG. 2B. ) Is displayed on the screen 109.

If the user inputs the color level to be set by pressing a button on the remote controller, for example, an arrow button while the chrominance circle graphic is displayed, the controller 113 moves the chrominance circle graphic to the outside by the input color level. It expands or contracts inside, and simultaneously sets the input color level to the image processor 112. Then, if the user selects a hugh level to be set using a button on the remote controller, the control unit 113 rotates the chrominance circle graphic to the left and right by the input hugh level, and simultaneously inputs the input hugh level to the image processor 112. Set it.

If the user inputs a command to set the sharpness level for each frequency by using the remote controller while the video state control mode is set, the controller 113 reads the sharpness bar graphic as shown in FIG. 2C from the storage 111. And display on screen 109.

When the sharpness bar graphic is displayed, when the user designates one frequency band using a button on the remote controller and inputs a sharpness level to be set, the control unit 113 controls the frequency specified by the user by the sharpness level of the input frequency band. The user bar is moved up and down, and at the same time, the sharpness level of the input frequency band is set in the image processor 112.

See the flowchart for a process of adjusting the movement of the luminance bar graphic, the chrominance circle graphic, the sharpness bar graphic, etc. according to the level of the screen state input by the user with the television receiver of the present invention having the configuration and function as described above. The explanation is as follows.

3A to 3C are flowcharts illustrating a method of adjusting a screen state using graphics in a television receiver according to an embodiment of the present invention.

3A-3C, when a user presses a menu button on the remote control, as shown in FIG. 4A, the television receiver 100 displays certain top-level menu items including video condition adjustment items on the screen 109. To display (S301). In this process, the television receiver 100 processes and displays predetermined menu items on the OSD screen. If a hot key for selecting a video condition adjustment item is attached to the remote controller, the user may select a video condition control item by pressing a hot key on the remote controller without using a menu button.

When the user selects the video status adjustment item using the remote controller while the predetermined top menu items are displayed (S302), the television receiver 100 is configured to display the screen status level input by the user through a predetermined graphic. After setting the video status control mode (S303), the luminance screen, chrominance screen, sharpness screen, and the like set in the lower path of the predetermined video status control screen as shown in FIG. It is displayed on (S304). In this state, the television receiver 100 determines which item is selected by the user among the three items displayed (S305).

When the luminous item is selected as a result of the determination, the television receiver 100 processes a predetermined luminous bar graphic for displaying the contrast level and the brightness level input by the user as an OSD screen and displays it on the screen 109. (S306). In the display process, as shown in FIG. 2A, the luminance bar graphic is composed of a luminance bar indicating contrast level and brightness level, and a contrast bar and brightness bar displayed on one side of the luminance bar displayed in the vertical direction. The bar is located above the luminous bar and the brightness bar is located below the luminous bar.

Looking at the movement characteristics of the luminance bar graphic, when the user inputs a contrast level to be set by pressing a button on the remote control, for example, an arrow button, the contrast bar moves up and down, but the upper and lower luminosity of the luminance bar is displayed. If you move up and down between the middle of the nursing bar, and the user inputs the brightness level to set by pressing the arrow buttons on the remote control, the brightness bar also moves up and down, but the lower and lower bars of the luminous bar Move up and down between the middle parts of the.

When the luminance bar graphic is displayed, when the user inputs a contrast level and a brightness level to be set using the remote controller (S307), the television receiver 100 moves the contrast bar on the luminance bar by the input contrast level. The brightness bar is moved on the luminance bar by the input brightness level (S308). At this time, if the input contrast level is higher than the currently set contrast level, the television receiver 100 moves the contrast bar upward, and conversely, if the input contrast level is lower than the currently set contrast level, the television vision receiver 100 contrast Move the bar downward. Similarly, if the entered brightness level is higher than the currently set brightness level, the television receiver 100 moves the brightness bar upwards, and if the entered brightness level is lower than the currently set brightness level, the television receiver ( 100) moves the brightness bar downward.

When the contrast level and the brightness level are input by the user in this way, the television receiver 100 sets the input contrast level and the brightness level (S309), and adjusts the contrast of the video screen according to the set contrast level. The brightness of the video screen is adjusted according to the set brightness level (S310).

If the chrominance item is selected in the determination process (S305), the television receiver 100 processes the predetermined chrominance circle graphic to display the color level and the pause level input by the user on the OSD screen. Display on the screen 109 (S311). In the display process, as shown in FIG. 2B, the chrominance circle graphic is formed in a circle of 360 degrees, and colors that form an image screen at a predetermined angle, for example, at 60 ° intervals, are set on the circle. Red color is set on 0 ° and yellow and green on 60 °, 120 °, 180 °, 240 ° and 300 ° respectively when the angle is measured clockwise from 0 °. ), Cyan, Blue and Magenta colors are set. Since the colors of the video screen are set on the circular chrominance circle graphic, for example, if the chrominance circle graphic rotated to the left or right rotates in the red direction, the red intensity of the video screen becomes high, and vice versa. When the circle graphic rotates in the opposite direction of red color, the red density of the video screen is lowered. The color of the video screen input by the user through the chrominance circle graphic having such characteristics, that is, the yellow density, the green density, the cyn density, the blue density, and the magenta density are displayed.

In the present invention, the circular chrominance circle graphic is rotated left and right, but the chrominance circle graphic is rotated left and right about one axis. Rotate the circle graphic left and right. In this case, if the color level of the red density input by the user increases, the chrominance circle graphic rotates to the left along the axis of 60 °, and if the color level of the green density input by the user increases, the chrominance circle The graphic rotates 60 ° to the right.

In addition, if the color level currently input by the user is lower than the previously set color level, the chrominance circle graphic is contracted inward by the input color level, and conversely, the color level currently input by the user is higher than the previously set color level. If high, chrominance circle graphics expand outward by the input color level.

When the chrominance circle graphic is displayed, when the user inputs a color level or a hue level to be set using the remote controller (S312), the television receiver 100 moves the chrominance circle graphic to the left as much as the input hue level. Or it rotates in the right direction, and shrinks the chrominance circle graphic to the inside or expands to the outside by the input color level (S313).

When the user enters the color level or the pause level in this way, the television receiver 100 sets the input color level or the pause level (S314), and adjusts the color of the video screen according to the set color level. The phew of the video screen is adjusted according to the phew level (S315).

When the sharpness item is selected in the determination process (S305), the television receiver 100 processes the predetermined sharpness bar graphic to display the sharpness level for each frequency band input by the user as the OSD screen and displays the screen 109. In the display (S316). In the display process, as illustrated in FIG. 2C, the sharpness bar graphic includes a low frequency bar, an intermediate frequency bar, and a high frequency bar spaced at regular intervals, and the low frequency bar is a sharpness of a low frequency band input by a user. Vertically moved in the vertical direction in accordance with the level, the bar for the intermediate frequency is vertically moved in the vertical direction in accordance with the sharpness level of the intermediate frequency band input by the user, and the sharpness level in the high frequency band input by the user Is vertically moved in the vertical direction.

When the sharpness bar graphic is displayed, when the user designates one frequency band among low, middle, and high frequencies using the remote controller (S317), and enters the sharpness level to be set for the specified frequency band (S318), the television is set. The receiver 100 vertically moves the bar designated by the user among the low frequency bar, the middle frequency bar, and the high frequency bar forming the sharpness bar graphic in the vertical direction by the input sharpness level (S319). Here, when the user designates a low frequency band using a remote controller and inputs a sharpness level higher than the sharpness level of the currently set low frequency band, the television receiver 100 moves the low frequency bar that forms the sharpness bar graphic upward by the input sharpness level. Move it vertically. If the user designates a low frequency band using the remote control and inputs a sharpness level lower than the sharpness level of the currently set low frequency band, the television receiver 100 vertically moves the low frequency bar forming the sharpness bar graphic downward by the input sharpness level. Move it.

When the sharpness level of the specific frequency band is input by the user in this way, the television receiver 100 sets the sharpness level of the input frequency band (S320), and among the video signals output to the screen 109 according to the set sharpness level. The sharpness level of the specific frequency band is adjusted (S321).

As described above, the present invention discloses displaying the state of the screen input by the user using the luminance bar graphic, the chrominance circle graphic, and the sharpness bar graphic. Only the functions are described as an example, and it is obvious that even when the user arbitrarily adjusts other functions of the television receiver not disclosed in the present invention, the adjustment state can be shown through the graphic according to the technical idea of the present invention.

As described above, the present invention displays a screen state level such as contrast level, brightness level, color level, color density level, and sharpness level input by a user, thereby displaying the screen state level to be adjusted. This allows the user to check more accurately, which makes it easier for the user to set the desired screen state.

Claims (12)

Storage means for storing graphic information representing a screen state level; When the video status control command is input, the graphic information for setting the screen status level is extracted and controlled from the storage means, and the displayed graphic information is formed according to the screen status level input from the user. Control means for controlling the movement of the graphics to change the graphics state; Image processing means for displaying graphic information stored in the storage means and an input video signal according to a control signal of the control means; And Display means for displaying image and graphic information input through the image processing means in accordance with a control signal of the control means; TV receiver comprising a. The method of claim 1, Graphic information stored in the storage means includes a luminance bar graphic for indicating contrast level and brightness level input, a chrominance circle graphic for indicating input color level and hue level, and a sharpness level for each input frequency. A television receiver comprising at least one of a sharpness bar graphic for representing. The method of claim 2, The luminance bar graphic includes a luminance bar indicating a contrast level and a brightness level which are the screen state levels, and a contrast bar and a brightness bar displayed on one side of the luminance bar displayed in a vertical direction. The contrast bar is located above the luminous bar and moved up and down between the upper end and the middle portion of the luminous bar, And the brightness bar is located below the luminous bar and is moved up and down between the lower end and the middle portion of the luminous bar. The method of claim 2, The chrominance circle graphic has a circular shape and is rotated left and right according to the hue level among the color level and the hue level, which are the screen state levels, and contracted or expanded according to the color level. The method according to any one of claims 2 to 4, The sharpness bar graphic comprises a sharpness bar indicating sharpness levels for each frequency band, and the sharpness bar for each frequency band is moved up and down according to the sharpness level according to a frequency band input from a user. A first step of setting a video state adjustment mode for adjusting a screen state level; If the video state adjustment mode is set, displaying a graphic information for setting a screen state level on a screen; And A third step of changing the state of the graphic by controlling the movement of the graphic constituting the graphic information according to the screen state level input from the user on the displayed graphic information Screen condition control method using a graphic on a television receiver comprising a. The method of claim 6, In the second step, if a video state adjustment mode for adjusting the contrast and brightness levels is set, a luminance bar indicating contrast level and brightness level is displayed on one side of the luminance bar displayed in the vertical direction. A method of controlling a screen state using graphics in a television receiver, characterized by displaying a luminance bar graphic comprising a contrast bar and a brightness bar. The method of claim 7, wherein In the third step, And moving the contrast bar and the brightness bar up and down according to the contrast and brightness levels input from the user on the displayed luminance bar graphic. The method of claim 6, In the second step, if the video state control mode for adjusting the color and the hue level is set, displaying a chrominance circle graphic consisting of a circle representing the color and the hue level, the graphic in the television receiver How to adjust the screen state using. The method of claim 9, In the third step, Rotating the chrominance circle graphic in a left or right direction according to a hue level input from a user on the chrominance circle graphic, and contracting or expanding the chrominance circle graphic in accordance with an input color level. Method for adjusting the screen state using graphics on a television receiver. The method of claim 6, In the second step, adjusting the sharpness level, if the video state control mode is set, displaying a sharpness bar graphic made up of each sharpness bar for displaying the sharpness level for each frequency band; Condition control method. The method of claim 11, In the third step, And vertically moving the sharpness bar of the corresponding frequency band in the vertical direction according to the sharpness level input from the user on the sharpness bar graphic.

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