JP4794359B2 - Video display device - Google Patents

Description

  The present invention relates to a video display device that displays an input video, and particularly relates to a video display device having a video adjustment function capable of performing video adjustment such as image quality adjustment using a user menu.

2. Description of the Related Art Conventionally, as a video adjustment technique for adjusting image quality such as brightness, saturation, and color density in a video display device such as a television receiver, image quality adjustment is performed on a screen on which a viewing video is displayed as disclosed in Patent Document Switching the screen on which the viewing video is displayed to the image quality adjustment screen as shown in Patent Document 2, and comparing the image before adjustment with the image after adjustment There is something that can be done. Also, as disclosed in Patent Document 3, the same broadcast program is displayed on each of the divided screens, and the image quality adjustment of the other screen is performed while comparing with one screen.
JP-A-8-251498 JP 2002-218350 A JP 2006-13618 A

  However, none of the above-mentioned prior art makes it possible to use a video adjustment image suitable for the adjustment item, so even if it is difficult to adjust depending on the type of video adjustment, it can be adjusted with it. There was no choice but to do. In addition, when the video adjustment screen is displayed on the screen on which the viewing video is displayed, the viewing video is difficult to see, and the image for adjusting the image quality is also superimposed on the viewing video, so it is difficult to see. There was a problem. In addition, when performing image quality adjustment, only the adjustment mode for switching the entire screen to the adjustment-dedicated screen has a problem in that viewing video cannot be viewed during the adjustment.

  In view of such a current situation, the present invention is capable of easily and appropriately adjusting any kind of adjustment items, and also includes a video adjustment function that does not make it difficult to view a viewed video even during adjustment. An object of the present invention is to provide a video display device.

The present invention includes the following technical means in order to solve the above problems.
According to a first technical means, in a video display device having a video adjustment function, video adjustment image generation means for generating a plurality of different types of video adjustment images is provided, and a video adjustment screen displayed in a video adjustment mode to, to together with the adjustment menu items can be displayed one of the plurality of image adjustment images, change the setting value at the time of adjustment so as to reflect the image adjustment image displayed on the screen for image adjustment, image The type of the image adjustment image displayed on the image adjustment screen in the adjustment mode is determined according to selection of an adjustment menu item .

According to a second technical means, in the first technical means, the video display device further includes a multi-screen display function, and when the multi-screen display mode is selected, the video adjustment screen is displayed on the first screen. The viewing video is displayed on the second screen .
According to a third technical means, in the second technical means, the change of the setting value at the time of video adjustment is reflected only on the video adjustment image displayed on the first screen. is there.
The fourth technical means is characterized in that, in the second technical means, the change of the set value at the time of video adjustment is reflected in the viewing video displayed on the second screen.
According to a fifth technical means, in the second technical means, the first screen is further divided, the same image for image adjustment is displayed on both of the divided screens, and the setting value is changed at the time of video adjustment. This is characterized in that it is reflected only in the image adjustment image displayed on one screen.

According to a sixth technical means, in a video display device having a video adjustment function , video adjustment image generation means for generating a plurality of different types of video adjustment images is provided, and the video adjustment screen displayed in the video adjustment mode In addition, one of the plurality of video adjustment images can be displayed together with the adjustment menu item, and the change of the setting value at the time of adjustment is reflected in the video adjustment image displayed on the video adjustment screen. The video display device further includes a multi-screen display function. When the multi-screen display mode is selected, the video adjustment screen is displayed on the first screen, the viewing video is displayed on the second screen, and the first screen is displayed. This screen is further divided, and the same image for image adjustment is displayed on both the divided screens, and the change of the setting value at the time of image adjustment is reflected only on the image for image adjustment displayed on one screen. Is obtained is characterized by that.

According to a seventh technical means, in the sixth technical means, the user can determine the type of the video adjustment image displayed on the video adjustment screen in the video adjustment mode .
According to an eighth technical means, in the first or sixth technical means, the type of the adjustment image includes at least two of a pattern, a still image, and a moving image .

According to the present invention, an image for image adjustment suitable for the adjustment item can be used, so that any type of adjustment item can be easily adjusted to an image with desired display characteristics, In addition, while the video adjustment is being performed, it is possible to continuously watch the viewing video that has been viewed without being interrupted by other video.
Therefore, users who have not made any video adjustments due to the difficulty of understanding so far can now make their own video adjustments, and users who are interested in image quality can make further video adjustment settings using the functions of the present invention. I can enjoy it.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an example of the configuration of a television receiver to which the present invention is applied. The control unit 10 that controls various functions of the television receiver 1 receives an operation signal generated by a user operation from the operation unit or the remote control reception unit 11. The television broadcast signal selected from the tuner 12 selected by the user's selection operation is detected by the video intermediate frequency / detection circuit 13, and the detected video signal or the video signal input from the external input terminal is: The signal is input to the Y / C separation circuit 15 via the video selector 14. The video signal input to the Y / C separation circuit 15 is separated into a luminance signal and a color difference signal, converted to digital data by the A / D conversion unit 16, and input to the main screen video processing circuit unit 17.
When the two-screen display mode to be described later is selected, the main screen video processing circuit unit 17 performs processing for reducing the screen size so that the viewing video can be displayed on the right screen, and the video adjustment image generation unit 18 selects Processing for supplying an image based on the type of the adjusted image is performed.

  When the two-screen display mode is selected, the two-screen insertion circuit unit 19 performs processing for displaying the viewing video on the right screen and the above-described video adjustment image on the left screen. Do. The matrix circuit unit 20 converts the video data from the two-screen insertion circuit unit 19 into RGB data by adding the display characteristic data set by the display characteristic setting circuit unit 21. The synthesized video generation unit 22 synthesizes the RGB data from the matrix circuit unit 20 and the on-screen image data from the on-screen display image generation unit 23 to generate one screen image data. The on-screen display image generation unit 23 includes a video adjustment start screen for on-screen display on the viewing video based on a command signal from the control unit 10, an adjustment menu item for on-screen display on the video adjustment screen, and the like. The on-screen image data is supplied to the composite video generation unit 22. The video data synthesized by the synthesized video generation unit 22 is converted into an analog signal by the D / A conversion unit 24 and output to the display unit.

  Next, the operation of the present invention will be described using display examples of each display screen in the video adjustment mode. The following operations are performed using a remote controller, and the remote controller is provided with a menu key, an enter key, an up / down direction key, a left / right direction key, an increase / decrease key, a return key, and the like. To perform image adjustment, first, a menu screen is displayed by pressing a menu key (not shown), and “image adjustment” is selected from the menu items to enter an image adjustment mode. When the video adjustment mode is selected, start screen image data for video adjustment is sent from the on-screen display image generation unit 23 to the composite video generation unit 22, and as shown in FIG. The screen is displayed on-screen. When the user selects the “2-screen display” mode on this display screen, as shown in FIG. 3, the viewing video that has been viewed so far is reduced and displayed on the right screen, and the left screen is used for video adjustment. An adjustment image selection screen for selecting the type of image adjustment image to be displayed is displayed on the screen.

  The display example shown in FIG. 3 shows that the “pattern” adjustment item is selected by default and a pattern image is displayed as an adjustment image. When selecting “still image” as an adjustment image from this display screen, operate the left and right direction keys on the remote controller to highlight “still image” and press the enter key to display a predetermined still image suitable for adjustment. If “moving image” is selected as the adjustment image, a predetermined moving image suitable for adjustment is displayed.

  As another method for selecting a video adjustment image to be displayed on the video adjustment screen, for example, a video adjustment image suitable for the adjustment is associated with each adjustment item in advance, and the adjustment item is selected. It is also possible to display a video adjustment image corresponding thereto.

  In the case where “pattern” is selected as the adjustment image on the display screen of FIG. 3, when the enter key is pressed as it is, the screen is switched to the screen of FIG. 4 and the adjustment item menu screen is turned on by being superimposed on the pattern image as the adjustment image. Displayed on the screen.

  “Brightness: Brightness”, “Contrast: Contrast”, “Saturation: Color”, “Quickshoot: Quick Shot”, “Sharpness: Sharpness”, and the like are displayed as menu items for image adjustment. The display screen of FIG. 4 shows a state in which “Color” is selected, and the saturation setting value changes by operating the increase / decrease key in this state, and the change is reflected in the pattern image on the left screen. The

  The saturation can be easily adjusted because the pattern image is easier to understand the change than the moving image. When adjusting other items, the up / down direction key is operated to highlight the target item, the enter key is pressed, and the increase / decrease key is operated to change the set value for adjustment.

  When the adjustment image is changed to “still image”, for example, when the return key is pressed, the screen of FIG. 3 is returned to, and “still image” is selected and the enter key is pressed. The display example of FIG. 5 shows a screen in which “still image” is selected as an adjustment image in order to adjust “sharpness”. In general, the adjustment of “sharpness” is easier to determine when the adjustment is performed on a still image than on a moving image.

  In the display example of FIG. 6, when “MOVIE” is selected as the adjustment image, and “QUICK SHOT” is adjusted on a liquid crystal television, which is a clear and easy-to-see function with no afterimage. The screen is shown. The adjustment image used for adjusting this function needs to be a moving image.

In the video adjustment mode described above, every time the set value is changed while the set value is changed by operating the increase / decrease key, it is temporarily stored in the memory in the display characteristic setting circuit unit, and the desired display characteristic is obtained. When the determination key is pressed when obtained, the setting value stored in the non-volatile memory built in the display characteristic setting circuit unit 21 is rewritten with the changed setting value.
Further, in the case of the conventional method in which the adjustment menu item is displayed on the viewing image on the screen without adjusting the “two-screen display” mode on the screen of FIG. The change processing is not performed, and the viewing video data is input to the matrix circuit unit 20 through the two-screen insertion circuit unit 19.

  7 and 8 are flowcharts showing the flow of operations in the video adjustment mode described above. As described above, when the video adjustment mode is selected by operating the menu key, the video adjustment start screen of FIG. 2 is displayed on the viewing video (step S1), and when the “two screen display” mode is selected (step S1). Step S2 / Y), the screen of FIG. 3 is displayed (Step S3). In FIG. 3, the “pattern image” as the adjustment image is displayed by default as described above, and when using another type of adjustment image, it is selected by operating the left and right direction keys (step S4). When the enter key is pressed, the selected type of adjustment image (FIG. 4) is displayed together with the adjustment item menu (step S5).

  Use the up / down arrow keys to select the desired adjustment item, and use the up / down keys to change the set value. When the set value is changed, the change is reflected in the pattern image which is an adjustment image (step S6). By pressing the enter key when the desired display characteristics are obtained (step S7), the setting value of the item is rewritten, and the change is reflected on the viewing video displayed on the right screen (step S8). . In order to continue adjusting other items, the up / down direction key is operated (returning from step S9 to step S4), the item to be adjusted is selected, and the same operation is performed.

If “Still Image” is selected in Step S4, Steps S10 to 14 are performed. If “Moving Image” is selected, Steps S15 to S19 are performed. .
For “pattern” and “still image”, different images suitable for the adjustment items are prepared, and the items are selected in accordance with the selection of the adjustment item at the above steps S6 to S9 and S11 to S14. You may make it display the image suitable for.

  When the adjustment of the desired item with the selected adjustment image is completed and the adjustment is performed using another type of adjustment image, the return key is pressed to return from step S20 to step S4, and the screen of FIG. To select a desired type of adjustment image.

  When the enter key is pressed in step S20, the process proceeds to step S21. When “YES” is selected in response to a message such as “Do you want to end the video adjustment?”, The screen returns to the normal screen (step S22) and the video adjustment mode ends. .

  If “NO” is selected in step S21, the process returns to step S1 to display the screen of FIG. If “NO” is selected on the screen of FIG. 2, the process proceeds to step S23, and the adjustment menu item is displayed on the screen on the viewing video displayed on the full screen, and the video adjustment in the conventional method can be performed in steps S24 to S27. That is, when an adjustment item is selected and adjustment is performed while reflecting the set value being adjusted in the viewing video (step S24), when the desired display characteristic is obtained and the enter key is pressed (step S25), the set value is changed. It is rewritten (step S27). By selecting other items using the up / down direction keys, the adjustment is performed in the same manner.

  When the adjustment in the one-screen mode is completed, if the determination key is pressed in step S27, the process proceeds to step S21. To continue adjustment in the two-screen display mode, select “NO” in response to the message “Do you want to finish the video adjustment?” And the screen shown in FIG. 2 will be displayed. Switch to screen display mode.

  In the above-described embodiment, the case of displaying two screens as the screen mode in the video adjustment mode has been described. For example, the viewing video is displayed as it is for viewing on the right screen, and the left screen for adjustment is further displayed. It is also possible to divide the screen vertically into three screens, and display the same adjustment image on both the upper and lower screens of the left screen so that the change of the set value at the time of adjustment is reflected on only one screen.

It is a block block diagram which shows one Embodiment of this invention. It is a figure which shows the example of a screen display when image adjustment mode is selected. It is a figure which shows the example of a screen display when 2 screen display is selected. It is a figure which shows the example of a screen display which displayed the setting menu screen on-screen. It is a figure which shows the example of a screen display when a still image is selected as an image for adjustment. It is a figure which shows the example of a screen display when viewing image | video is selected as an image for adjustment. It is a figure which shows the first half part of the flow in image | video adjustment mode. It is a figure which shows the second half part of the flow in image | video adjustment mode.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Control part, 17 ... Main screen image processing circuit part, 18 ... Image adjustment image generation part, 19 ... Two screen insertion circuit part, 21 ... Display characteristic setting circuit part, 22 ... Composite image generation part, 23 ... On-screen Display image generation unit.

Claims (8)

In a video display device having a video adjustment function, image adjustment image generation means for generating a plurality of different types of video adjustment images is provided, and the video adjustment screen displayed in the video adjustment mode is displayed together with the adjustment menu item. One of a plurality of image adjustment images can be displayed, and a change in setting value during adjustment is reflected in the image adjustment image displayed on the image adjustment screen . A video display device characterized in that the type of the video adjustment image displayed on the screen is determined in accordance with the selection of an adjustment menu item . The video display device further includes a multi-screen display function, and when the multi-screen display mode is selected, the video adjustment screen is displayed on the first screen and the viewing video is displayed on the second screen. The video display device according to claim 1 . 3. The video display device according to claim 2 , wherein the change of the setting value at the time of video adjustment is reflected only on the video adjustment image displayed on the first screen. 3. The video display device according to claim 2 , wherein the change of the setting value at the time of video adjustment is reflected on the viewing video displayed on the second screen. The first screen is further divided, and the same video adjustment image is displayed on both of the divided screens, and the change of the setting value at the time of video adjustment is applied only to the video adjustment image displayed on one screen. The video display apparatus according to claim 2 , wherein the video display apparatus is reflected. In a video display device having a video adjustment function, image adjustment image generation means for generating a plurality of different types of video adjustment images is provided, and the video adjustment screen displayed in the video adjustment mode is displayed together with the adjustment menu item. One of a plurality of video adjustment images can be displayed, and a change in the setting value at the time of adjustment is reflected in the video adjustment image displayed on the video adjustment screen. Further comprising a function, when the multi-screen display mode is selected, the video adjustment screen is displayed on the first screen, the viewing video is displayed on the second screen, and the first screen is further divided. The same image for image adjustment is displayed on both of the divided screens, and the change of the setting value at the time of image adjustment is reflected only on the image for image adjustment displayed on one screen. The video display device. Video display according to claim 6, characterized in that the type of the video adjustment image displayed on the video adjustment screen image adjustment mode Yoo Za can be determined. The type of adjustment image, the pattern, still and video display according to claim 1 or 6, characterized in that it comprises at least two of the video.

Images