JPH11312072A - Method and device for controlling display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display respective videos in satisfactory styles when the videos in various display styles are mixed by inserting a prescribed marker signal to video signals at positions corresponding to two corners on a diagonal at least within a prescribed range of a displayed picture. SOLUTION: When a video signal processed by a video output part is supplied to a display and a picture 100 on the display is set in a prescribed state, an image display window frame 101 for displaying a still picture or moving image is set at the prescribed position in that picture 100, and the video signal displayed while arranging the prescribed still picture or moving image under the control of a control part is generated on that image display window frame 101 by a video processing part and the video output part. Marker signals 102a, 102b, 102c and 102d are arranged on the horizontal lines of video signals at the positions of four corners within the image display window frame 101.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display control method for controlling display of an image on a display device for a computer device and a display control device to which the control method is applied, and more particularly to a still image, a moving image and the like. Video in different formats so that
The present invention relates to a technique suitable for displaying images simultaneously on one screen.

[0002]

2. Description of the Related Art In recent years, with the progress of computer equipment and the like, a display device connected to a computer has come to display a still image such as a photograph or a moving image such as a movie. 2. Description of the Related Art In a television receiver, information such as characters is displayed with the development of the Internet and the like.

[0003] Since a still image such as a photograph and a moving image such as a movie have a large amount of information, a clear image cannot be transmitted in television broadcasting represented by NTSC broadcasting. Because of this,
2. Description of the Related Art In a television receiver, a sharp (improved) image is provided to a user by improving sharpness and contrast ratio of a still image such as a photograph or a moving image such as a movie.

[0004] However, such an effect has the effect of improving the visibility of a still image such as a photograph or a moving image such as a movie, etc. , In addition to making the characters difficult to read, if the brightness of the character part is too high, the eyes will be tired easily,
There is an adverse effect such that long-term gaze (use) cannot be performed.

[0005] In recent years, computer equipment has been required to handle still images such as photographs and moving images such as movies with the mounting / spread of devices for handling large amounts of data such as CD-ROMs and DVDs. Are increasing. On the other hand, in a display device for a computer, the image quality of a still image such as a photograph or a moving image such as a movie is improved by improving a variable range of contrast (improvement of brightness). Some of them are equipped with a sharpness function and have been improved.

[0006] In these display devices, the image quality improvement function can be turned on / off (operation / non-operation) and the function level can be adjusted by the user, but the operation of the function is controlled by the entire screen. Or can be operated only in a certain specific area on a preset screen.

[0007]

Therefore, for example, in a monitor display device for computer equipment,
In a case where so-called image information such as a still image or a moving image is displayed in a partial area of a screen on which character information such as characters and numerals are displayed, a process of improving the image quality displayed in accordance with the image is performed. However, there is a problem that the display state of the character information is not good, but it is difficult for the user to easily adjust both the image quality of the image and the image quality of the character to an appropriate state.

In recent years, with the development of the Internet and the spread of teletext, there has been an opportunity for general television receivers to display images such as still images and moving images and characters and numerals on a single screen. However, in such a case, it is difficult for the user to easily adjust both the image quality of the image and the image quality of the character to an appropriate state.

It is an object of the present invention to automatically display a good image in the case where images such as still images and moving images and images of different display forms such as character information are mixed. Control can be performed.

[0010]

According to a display control method of the present invention, when a video signal to be displayed on a predetermined display device is generated, at least two diagonal corners of a predetermined range in a displayed screen are displayed. A process for inserting a predetermined marker signal into a video signal at a position where the marker is to be performed is performed.

By supplying the video signal generated by the display control method to the display device, the display device performs image processing different from the video in the other range on the video in the range specified by the marker signal. This makes it possible to perform display control on a specific range of video.

The display control device according to the present invention further includes an image control unit for controlling an image in a predetermined state to be inserted into a predetermined range of the video signal, and an image control unit for controlling a position corresponding to at least two diagonal corners of the predetermined range. And a marker signal insertion processing section for inserting a predetermined marker signal into the video signal.

According to the display control device, when the image control unit executes the process of inserting an image in a predetermined state, a video signal in which data indicating a range where the image is inserted is inserted as a marker signal is generated. Thus, it is possible to generate a video signal capable of controlling display of a video in a specific range specified by the marker signal.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

In the present embodiment, the present invention is applied to control processing of display on a display device constituting a display means in a computer device which is an information processing device called a personal computer device. That is, FIG.
An example of the configuration of a computer device to which the present embodiment is applied is shown below.

FIG. 1 is a diagram showing an example of the configuration of a computer apparatus main body 200, and a control unit 201 serving as arithmetic processing means.
Is connected to a ROM 202 and a RAM 203 necessary for executing arithmetic processing, and operation information of a keyboard 204 and a mouse 205 as operation input means is transmitted to the control unit 20.
1 is supplied. Also, the computer device main body 20
0 includes a hard disk drive unit 206 and an optical disk drive unit 207 as data storage / readout means, and the storage and readout processes in these drive units 206 are executed based on the control of the control unit 201.

An image processing unit 208 for processing an image to be displayed on the display device 210 is provided. Based on a command supplied from the control unit 201 to the image processing unit 208 via a predetermined bus line. Video processing is performed. As the video processing in the video processing unit 208,
For example, data such as a character string generated by the arithmetic processing in the control unit 201 is supplied to the video processing unit 208 via a bus line, and a process for generating a video for displaying the data is performed. The data (image data such as a still image and a moving image, character data, etc.) read from the optical disk drive unit 207 is supplied to the video processing unit 208 via a bus line, and a video based on the read data is provided. Processing for generating video data to be displayed is performed. In this case, for example, video data is generated so that the video based on the image data read from the storage medium by each of the drive units 206 and 207 and the video based on the character data generated by the control unit 201 are displayed on the same screen. There is also a configuration that can be used.

The video data generated by the video processing unit 208 is supplied to a video output unit 209 to be displayed on the display device 2.
10 and convert it to a video signal for display.
The converted video signal is displayed on the display device 21.
Supply 0. The conversion processing in the video output unit 209 of this example includes, for example, a red signal R, a green signal G,
A process of converting into a blue signal B video signal is performed. Also,
In the video output unit 209, a process of inserting a marker signal into the video signal is performed based on the control of the control unit 201. The marker signal is a signal for controlling a display state when displaying an image on the display device 210 side. For example, a primary level signal of a predetermined level is combined in a predetermined pattern using a predetermined section of one horizontal line. This is the signal generated by In this example, as the marker signal insertion processing, when an image display window frame for displaying a still image or a moving image is set, the control unit 201 inserts the marker signal so that the marker signal is inserted into the four corners of the image display window frame. Control the position.

The flowchart of FIG.
The control unit 201 determines whether or not the output video signal has an image display window frame (step S11). If there is no image display window frame, the control unit 201 performs a marker signal arrangement process. Is not executed, and if there is an image display window frame,
The process of arranging the marker signal in the corner is performed by the video output unit 209.
(Step S12).

That is, for example, when the video signal processed by the video output unit 209 is supplied to the display device 210 and the screen 100 displayed on the display unit 211 of the display device 210 is in the state shown in FIG. Screen 1
An image display window frame 101 for displaying a still image or a moving image is set at a predetermined position in 00, and a predetermined still image or moving image is arranged and displayed in the image display window frame 101 under the control of the control unit 201. It is assumed that the video signal to be generated has been generated and processed by the video processing unit 208 and the video output unit 209. At this time, the image display window frame 1
01 on the horizontal line of the video signal at the four corners
Marker signals 102a, 102b, 102c, 102d
Place.

FIG. 5 shows each of the marker signals 102a and 102a.
b, 102c, and 102d, in which a red signal R, a green signal G, and a blue signal B are represented by (a), (b), and (b) of FIG.
As shown in FIG. 5 (d), the signal of the level shown in FIG. 5 (c) is "red, magenta, green, green" in a predetermined section within one horizontal line.
A signal whose color changes in the order of “cyan, yellow, white, yellow, white”. This color change is made to change at a cycle synchronized with a clock used for a video signal generation process, for example. Here, one example is shown as the marker signal, but the marker signals 102a, 102b, 102 at the four corners are shown.
c and 102d may be configured by marker signals of different patterns.

The video signal on which the marker signal is arranged as described above is supplied to the display device 210, and the video signal is subjected to image receiving processing by the display device 210 to display a video based on the video signal. At this time, the image reception processing circuit in the display device 210 detects the marker signal inserted into the video signal, and performs predetermined image processing within the range indicated by the detected marker signals at the four corners. is there.

FIG. 6 is a diagram showing an example of a circuit configuration in the display device 210 for detecting the marker signal and performing image reception processing. The input terminals 1R, 1G, and 1B are connected to the video output section of the computer main body 200. The video signals (red signal R, green signal G, and blue signal B) from 209 are supplied. The video signals R, supplied to the input terminals 1R, 1G, 1B,
G and B are supplied to the preamplifier IC3 through the capacitors 2R, 2G and 2B, respectively. This preamplifier IC
In 3, the supplied video signal (R / G / B) is supplied to sharpness improvement circuits 32R, 32G, 32B, which will be described later, through clamp circuits 31R, 31G, 31B, respectively, and further extracted through amplifiers 33R, 33G, 33B, which will be described later. It is what is done.

The video signal (R / G / B) extracted from the preamplifier IC 3 is further amplified by the output amplifier 4 and then extracted through the capacitors 5R, 5G and 5B. Further, these extracted video signals (R / G
/ B) is supplied to, for example, a cathode ray tube (hereinafter, referred to as a CRT) 7 which is a display means after the DC voltage conversion is performed by the cutoff adjusting amplifier 6, and is provided on a screen of the CRT 7 as described later. Image signal with improved image quality (R / G / B)
Is displayed.

A microcomputer (hereinafter, referred to as a microcomputer) 40 which exists in the apparatus and controls various functions includes, for example, data of first and second DC voltages for controlling sharpness and contrast ratio. And the data of the first and second DC voltages for performing the above control are formed. Further, these formed data are supplied to D / A conversion (hereinafter, referred to as DAC) circuits 34A and 34B and 35A and 35B, respectively, to control D / A conversion circuits.
Converted to C voltage.

The DAC circuits 34A and 34A
B and the control DC voltage converted by 35A and 35B are selected by switch circuits 36 and 37, respectively, and supplied to the above-described preamplifier IC3. This allows the preamplifier I
In C3, for example, the above-described sharpness improvement circuits 32R, 32G, and 3D are supplied according to the supplied control DC voltage.
2B and the amplifiers 33R, 33G, 33B are controlled,
Each improves the sharpness and contrast ratio.

In this embodiment, the video signal (R / G /
B) In addition to the above, horizontal and vertical synchronization signals are supplied from the computer main body 200 to the input terminals 11H and 11V. From the input terminal 11H, a horizontal synchronization signal is supplied to the PLL circuit 12, and this PLL circuit 12 An oscillation signal from the oscillator 13 is supplied, and an arbitrary clock signal synchronized with the horizontal synchronization signal is formed. This clock signal is supplied to a counting terminal of the horizontal counter 14H, and a horizontal synchronizing signal or a signal synchronized with the horizontal synchronizing signal is supplied to a reset terminal. Thus, a count value corresponding to a horizontal position on the display screen is taken out from the horizontal counter 14H.

The horizontal synchronizing signal is supplied to the counting terminal of the vertical counter 14V, and the vertical synchronizing signal from the input terminal 11V or a signal synchronized with the vertical synchronizing signal is supplied to the reset terminal. This allows this vertical counter 1
From 4 V, a count value corresponding to a vertical position on the display screen is taken out. The count values of the horizontal counter 14H and the vertical counter 14V are stored in the latch circuit 1 respectively.
5A, 15B and 16A, 16B.

Further, the video signals from the input terminals 1R and 1G are supplied to the shift register 9 through the amplifiers 8R and 8G.
R, 9G, and the input terminal 1B.
Is supplied to the clock terminals of the shift registers 9R and 9G through the comparator 8B. Then, the signals stored in these shift registers 9R and 9G are supplied to a comparator 10C and compared with a signal pattern stored in a memory 10M, for example. Here memory 10
In M, data of a preset pattern (for example, a pattern of the level shown in FIG. 5) is stored as a marker signal, and the marker signal is detected by comparison in the comparator 10C.

The detection signal of the signal pattern detected by the comparator 10C is supplied to the trigger terminals of the latch circuits 15A, 16A and 15B, 16B. As a result, the latch circuits 15A and 15B latch the count value corresponding to the horizontal position of the marker signal pattern 102a or 102c on the display screen, for example. In addition, the latch circuit 15
B includes, for example, the marker signal pattern 102b or 10b.
The count value corresponding to the horizontal position on the 2d display screen is latched.

Further, in the latch circuits 16A and 16B, for example, a count value corresponding to a vertical position on the display screen of the marker signal pattern 102a or 102b is latched. The latch circuit 16B has, for example, a marker signal pattern 1
The count value corresponding to the vertical position on the display screen of 02c or 102d is latched.

Therefore, these latch circuits 15A, 15B
And 16A, 16B are supplied to comparators 17A, 17B and 18A, 18B, respectively, and the above-described horizontal counter 14H and vertical counter 14
The count value of V is calculated by comparators 17A, 17B and 18 respectively.
A, 18B. The output of the latch circuit 15A is supplied to the comparator 17A via the subtractor 22 which shifts the timing forward in the horizontal direction by an amount corresponding to the length of the marker signal.

As a result, a signal is extracted from the comparator 17A when the count value of the horizontal counter 14H matches the count value of the marker signal pattern 102a or 102c in the horizontal position latched by the latch circuit 15A. From the comparator 17B, the count value of the horizontal counter 14H is output from the marker signal pattern 1 latched by the latch circuit 15B.
A signal is extracted when the count value matches the horizontal position count value of 02b or 102d.

Further, a signal is extracted from the comparator 18A when the count value of the vertical counter 14V matches the count value of the vertical position of the marker signal pattern 102a or 102b latched by the latch circuit 16A. From the comparator 18B, the count value of the vertical counter 14V is output from the marker signal pattern 102c latched by the latch circuit 16B.
Alternatively, a signal is extracted when the count value matches the vertical position count value of 102d.

When the signals from the comparators 17A and 17A are supplied to the set and reset terminals of the flip-flop 19H, a pulse signal corresponding to the horizontal width of the image display window frame 101 is extracted. Also, by supplying the signals from the comparators 18A and 18A to the set and reset terminals of the flip-flop 19V, a pulse signal corresponding to the vertical width of the image display window frame 101 is extracted.

Further, the signals from the flip-flops 19H and 19V are combined by the multiplier 20 to form a control signal for the section in the image display window frame 101. Then, the control signal is supplied to the switch circuits 36 and 37, and the DAC circuit 34A or 3
By selecting the control DC voltage converted by 4B, 35A or 35B, the sharpness of an image in an arbitrary region designated by the control signal from the multiplier 20 in the image displayed on the CRT 7 described above. And the contrast ratio is changed.

That is, in this apparatus, the sharpness (contour correction) and the contrast ratio (luminance correction) of only the window frame 101 on which an image such as a photograph or a moving image captured on the display screen is displayed are higher than those of other parts. The state can be set, whereby the image quality of the window frame 101 on which the captured image such as a photograph or a moving image is displayed can be improved. The image processing for improving the image quality can also be performed by gamma correction, color correction, or the like. Then, in the display area other than the window frame 101, these image processings are not performed, and the setting of the image processing suitable for displaying characters, numerals, and the like as the computer display device is maintained.

Therefore, in this apparatus, by performing arbitrary image processing only on a designated area, when an image such as a photograph or a moving image taken in is displayed together with information such as characters and numerals, The image quality of the captured image can be improved without making it difficult to see information such as characters and numbers.

As described above, the computer apparatus main body 2 of this embodiment
At 00, a video signal having a marker signal inserted therein is generated, and the video signal is supplied to the display device 210, so that the display device 210 automatically generates an image only for the image in the image display window frame 101. Can be controlled so that the image processing suitable for the application can be performed, the image processing can be controlled not to be performed in a range other than the window frame 101, and the image processing state of an arbitrary portion within one screen can be easily controlled. . In this case, the computer device main body 2
It is only necessary to supply a video signal to the display device 210 from 00, and there is no need to supply a control signal for controlling an image processing range or the like separately from the video signal. The connection between the main body 200 and the display device 210 does not become complicated.

In the example shown in FIG. 4, marker signals are arranged at the four corners of the image display window frame 101. However, if marker signals are arranged at least at two corners of the image display window frame, the range becomes Is possible. That is, as shown in FIG. 7, for example, when the image display window frame 103 is set in the display screen 100, the marker signal 104a is set at a position corresponding to two diagonally opposite corners of the image display window frame 103. , 10
4b, the two marker signals 104a, 1
04b may indicate that predetermined image processing is to be performed on the image display window frame 103. By doing so, processing similar to the above-described example can be performed using two marker signals.

In the example of FIG. 4, an example in which one image display window frame is set in one screen has been described.
A plurality of image display window frames may be set on the screen, each position may be indicated by a marker signal, and an instruction may be given to apply predetermined image processing to each of the indicated areas. .

Further, in the example described so far, an example has been described in which predetermined image processing is performed on an area within the image display window frame. However, even when such a display window frame is not set, one image processing is performed. A predetermined range in the screen may be designated by a marker signal, and control for performing predetermined image processing on the range may be performed. That is, for example, as shown in FIG.
The marker signal 106a,
It is also possible to insert 106 b, 106 c, and 106 d and perform control for performing predetermined image processing on the range 105 indicated by the marker signals 106 a to 106 d.
Alternatively, as shown in FIG. 9, marker signals 108a and 108b are inserted into video signals at positions corresponding to two diagonal corners of a predetermined range 107 in the display screen 100, and instructions are given by the marker signals 108a and 108b. Range 107
May be controlled so as to perform predetermined image processing.

Further, in the example described so far, the case where the image processing is controlled in a partial range within one screen has been described. However, marker signals are arranged at four or two corners of one screen. The image processing state for one entire screen may be controlled. That is, as shown in FIG. 10, for example, marker signals 109a, 109b, 109c, and 109d are added to video signals at positions corresponding to four corners of the display screen 100 (that is, four corners of a video displayed by a video signal of one frame). May be inserted so as to perform predetermined image processing on all the images displayed on the display screen 100. By doing so, for example, when an image displayed by an image signal generated by the computer apparatus main body 200 is an image based on image data such as a still image or a moving image on one entire screen,
Control for displaying the image satisfactorily can be performed. When the image displayed by the image signal generated by the computer apparatus main body 200 is switched to an image based on character data or the like, the marker signal insertion process is stopped, so that image processing suitable for character display and the like is performed. Control can be performed to return to the state and display characters well.

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. Also in the present embodiment, in a computer device which is an information processing device called a personal computer device, the present invention is applied to a display control process on a display device constituting a display means. This embodiment has the same configuration as that shown in FIG.
Is also the same as the configuration shown in FIG. 1 in the first embodiment described above. In the present embodiment, when a marker signal is inserted into the control unit 201 in the computer apparatus main body 200 under control, the insertion processing state can be selected based on a user operation.

That is, FIG. 11 shows a case where the video signal generated by the video output unit 209 of the computer main body 200 is supplied to the display device 210 and displayed on the screen of the display device 210 in this embodiment. This shows an example of the display state. Here, the image display window frame 1
If there is 11, based on the control of the control unit 201,
Marker signals 112a, 112b, 112c, 112d are arranged at four corners of the image display window frame 111,
Control similar to the control described in the first embodiment described above can be performed. In this example, the control unit 201 determines a predetermined operation command input means operated by the user, for example, a predetermined operation command of the keyboard 204 and the mouse 205 shown in FIGS. 1 and 2, and outputs the marker signals 112a to 112d. The user can select whether or not to perform an insertion process.

In the example shown in FIG.
The control unit 201 controls the video processing unit 208 so that the on-display unit 113 and the off-display unit 114 are displayed on the screen 100 displayed on the screen 100. For example, the position of the cursor display 115 by operating the mouse 205 For example, one of the display units 113 and 114 is selected. For example, by supplying an operation command to the control unit 201 such as clicking the cursor display 115 with the cursor display 115 aligned with the on-display unit 113, the state in which the marker signal is inserted into the image display window frame is selected. Causes a marker signal insertion process to be executed, resulting in the state shown in FIG. 11, which can be controlled to perform predetermined image processing on a range specified by the marker signal.

By supplying an operation command to the control unit 201 such as clicking the cursor display 115 with the cursor display 115 aligned with the off display unit 114, a state in which the marker signal is not inserted into the image display window frame is selected. ,
The control unit 201 does not execute the marker signal insertion processing,
As shown in FIG.
A state where the marker signal is not inserted into the corner is set, and the state where the predetermined image processing by the marker signal is not performed can be controlled.

FIG. 13 is a flowchart showing an example of a control process in the control unit 201 when such a selection process is performed. The process will be described below. Here, FIG.
(Virtual switch using the ON display unit 113 and the OFF display unit 114) (step S2)
1) When the switch is in the off state, no marker signal insertion processing is performed. If it is determined that the switch is on, the video processing unit 20
In step S22, it is determined whether or not the video being created has an image display window frame. Here, if there is no image display window frame, the processing relating to the marker signal is terminated, and if it is determined that there is an image display window frame, an insertion process for arranging marker signals at the four corners of the window frame is executed. (Step S23).

The marker signal arranging process in step S23 is, as described as a modification of the first embodiment, an inserting process of arranging marker signals only at two diagonal corners of the window frame. May be executed. Also, when there is no image display window frame and the image display range is set to a predetermined range, a switch such as an ON display or an OFF display is set, and the switch is set based on the setting state of the switch. Insertion processing may be performed so that marker signals are arranged at four or two corners of a predetermined range such as an image display range.

The operation command input means by a user operation for selecting the marker signal insertion processing may be constituted by other means. That is, for example, when a virtual switch based on display on a screen is used, for example, FIG.
As shown in FIG. 4, a menu screen 116 is displayed on the screen 100, and an item for selecting marker signal insertion processing in the menu screen 116 is selected by displaying a cursor 117 based on a mouse operation or the like. The selection setting may be made in the menu screen 116.

Also, in the case of the second embodiment,
A marker signal may be inserted into a video signal at a position corresponding to four corners (or two corners) of a screen so as to designate the entire screen as a range in which predetermined image processing control is performed by inserting the marker signal. good.

Next, a third embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. Also in the present embodiment, in a computer device which is an information processing device called a personal computer device, the present invention is applied to a display control process on a display device constituting a display means. This embodiment has the same configuration as that shown in FIG.
Is also the same as the configuration shown in FIG. 1 in the first embodiment described above. In the present embodiment, when a marker signal is inserted into the control unit 201 in the computer apparatus main body 200 based on control, a control signal that specifies an image processing state within a range specified by the marker signal is used. Is also inserted.

FIG. 15 shows a case where the video signal generated by the video output unit 209 of the computer main body 200 is supplied to the display device 210 and displayed on the screen of the display device 210 in this embodiment. This shows an example of the display state. Here, the image display window frame 1
When there is 21, based on the control of the control unit 201,
Marker signals 122a, 122b, 122c and 122d are arranged at four corners of the image display window frame 121,
A control signal 123 for controlling a range in which image processing similar to the control described in the first embodiment can be set, and controlling an image processing state set at that time.
Is inserted at a predetermined position in the image display window frame 121. Here, the marker signals 122a-122
It is necessary to set the insertion position of d and the insertion position of the control signal 123 so as not to overlap. In the example of FIG. 15, at the center of the horizontal line at the upper end in the image display window frame 121,
A control signal 123 is provided. This control signal 123
For example, a primary level signal of a predetermined level is generated in combination with a predetermined pattern (however, the combination is different from the marker signal), and the control state can be designated by the pattern. The control content specified by the control signal 123 includes, for example, the type of image processing to be controlled (contour correction, luminance correction, gamma correction, color correction, etc.), and adjustment level data for that type of processing.

By doing so, for example, assuming that sharpness adjustment as contour correction and contrast adjustment as luminance correction are performed as an image processing state executed by the marker signal and the control signal of the present example, Is controlled to be set to the adjustment amount specified by the control signal within the range specified by.

FIG. 16 is a flowchart showing an example of a control process in the control unit 201 when such a selection process is performed. The process will be described below. It is determined whether or not there is an image display window frame in the video performing (step S3).
1). Here, if there is no image display window frame,
When the processing related to the marker signal is completed and it is determined that there is an image display window frame, an image processing state set to be performed in the image display window is determined (step S32), and the determined image processing state is determined. The control signal and the marker signal to be instructed are inserted into the window frame, for example, in a state as shown in FIG. 15 (step S33).

As described in the modification of the first embodiment, the marker signal arranging process in step S33 is an inserting process of arranging marker signals only at two diagonal corners of the window frame. May be executed. That is, for example, as shown in FIG.
In the case where the image display window frame 124 is set in, the marker signal is arranged at the two corners of the image display window frame 124, and in one of the remaining two corners (here, the upper right corner). The control signal 126 may be provided.

In the example described so far, an example has been described in which a marker signal and a control signal are arranged in a region within the image display window frame to perform predetermined image processing. Even if is not set, a predetermined range in one screen may be designated by a marker signal, and control for performing image processing designated by a control signal on the range may be performed. That is, as shown in FIG. 18, for example, the marker signals 128a and 12 are added to the video signals at the positions corresponding to the four corners of the predetermined range 127 in the display screen 100.
8b, 128c, and 128d and control signal 1
29 is a predetermined position within the range 127 (the upper center here)
To perform image processing specified by the control signal 129 on the range 127 specified by the marker signals 128a to 128d. Alternatively, as shown in FIG. 19, marker signals 131a and 131b are inserted into video signals at positions corresponding to two diagonal corners of predetermined range 130 in display screen 100, and control signal 132 is set to a predetermined value within range 130. It may be inserted at a position (here, the right corner) to perform control for performing image processing specified by the control signal 132 on the range 130 specified by the marker signals 131a and 131b.

Further, the marker signal is transmitted to four corners of one screen or two corners.
The control signal may be arranged at a position that does not overlap with the marker signal, and the image processing state of the entire screen may be controlled to an arbitrary state. That is, as shown in FIG. 20, for example, the marker signals 133a and 133 are added to the video signals at the positions corresponding to the four corners of the display screen 100 (ie, the four corners of the video displayed by the video signal of one frame).
b, 133c, and 133d are inserted, and a control signal 134 is inserted at a position other than the four corners (here, the center of the uppermost horizontal line) to designate the entire image displayed on the display screen 100 as a range. Control signal 1
The image processing state designated by 34 may be controlled to be executed by the display device.

The image processing state is set using operation command input means such as a keyboard and a mouse, and the set state is stored in a memory 203 connected to a control unit 201 in the computer main body 200. Just remember. The setting process of the image processing state may be executed by displaying a menu screen on the screen of the display device 210, for example. That is, for example, as shown in FIG.
An image display window frame 135 is set in the screen 100, and marker signals 13 at four corners of the window frame 135 are set.
5a, 135b, 135c, and 135d and a control signal 136 to control the image processing state in the window frame 135, a first menu 137 is displayed on the screen 100, and the first menu is displayed. At 137, the adjustment item is displayed, and the first menu 137 is displayed.
The adjustment state relating to the item selected from among the items is displayed on the second menu 140. As the second menu 140,
The on display 141 or the off display 142 of the adjustment of the item is performed, and the adjustment amount set at that time is indicated by the bar graph 1.
43 is displayed.

The first menu 137 and the second menu 1
When performing adjustment by displaying 40, the screen 1 is displayed at that time.
By making the control signal 136 inserted into the window frame 135 displayed in 00 a signal according to the adjustment state, the user performing the adjustment operation can see the state of the image in the window frame 135, The adjustment can be performed while judging the adjustment state.

As described above, since the adjustment state of the image processing state can be arbitrarily set by a user operation, a desired image display state can be set. Further, by selecting an adjustment item, an arbitrary item can be adjusted, and various adjustments can be made. That is, it is possible to set, for example, to perform at least one or more image processing of contour correction, luminance correction, gamma correction, and color correction in an arbitrary state.

It should be noted that the first, second, third
The process of inserting the marker signal or the control signal in the embodiment may be performed only when the model of the display device 210 to which the computer device main body 200 is connected is determined and the control can be performed by the marker signal. good. That is, as shown in the flowchart of FIG. 22, for example, the control unit 201 in the computer apparatus main body 200 obtains information on the model number of the display apparatus 210 through communication with the connected display apparatus 210 and determines the model. (Step S41). Then, it is determined whether or not the determined model is a model capable of controlling the image processing based on the marker signal (that is, a model having a circuit as shown in FIG. 6) (step S42), and the model that cannot be controlled is determined. When it is determined that the marker signal is not inserted, the process of inserting the marker signal is not executed. If it is determined that the model can be controlled, the control unit 201 determines whether or not the output video signal has an image display window frame (step S43). If there is an image display window frame without performing the
The video output unit 209 executes a process of arranging marker signals at four corners of the window frame (step S4).
4).

By performing such processing, when a display device of a model which cannot be controlled by inserting a marker signal is connected, the marker signal is not inserted, and the marker signal inserting process can be controlled. Will be ensured only when necessary. Here, a configuration example of the model name of the display device is shown. For example, in the case of a model that can be controlled by a marker signal, a special code is added to the end of the model name to determine whether or not the code exists. You may do it. For example, if the original model name of a certain display device is “CPD-XXXGS”, and if a function controlled by the marker signal of the present example is provided, a code “ABC” indicating that is provided at the end of the function. "And add the model name to" CPD-XXX
GS ABC ". By doing so, the control unit 201 only has to determine the code “ABC” at the end in step S42 in the flowchart of FIG.

If there is no communication function between the computer device and the display device, this model name is input by a user operation, and based on the input model name, it is determined whether or not the model corresponds to the marker signal. May be determined.

Further, based on the model name determined by the computer main body, not only information as to whether or not control can be performed by a marker signal is determined, but also controllable adjustment items are determined. Control may be performed such that a control signal relating to an item is inserted.

In each of the embodiments described so far, the processing for controlling the display state of the display device connected to the computer device from the computer device main body side has been described. Of course, the present invention can also be applied to a case where display control is performed by other display means. For example, when image display and character display are mixed in a television receiver, a range in which character display is performed is designated by a marker signal, and image processing suitable for character display is performed within the range. May be controlled.

[0067]

According to the display control method of the present invention, the video signal generated by this method is supplied to the display device, so that the display device can control the video in the range indicated by the marker signal. In addition, it is possible to perform image processing different from the video in the other range, and appropriate display control for the video in the specific range can be performed only by supplying only the video signal to the display device side. Therefore, a user using the display device can automatically set an appropriate display state for each range within one screen without performing an operation of setting an image processing state. When displaying an image in which the image display range and the character information display range are mixed in one screen,
Control for making the display in each range appropriate can be performed without any user operation for that.

According to the display control method described in the second aspect, in the invention described in the first aspect, the marker signal is generated by combining primary color signals of a predetermined level in a predetermined pattern, so that the marker signal can be processed easily. Allows the marker signal to be arranged.

According to the display control method described in claim 3, in the invention described in claim 1, the marker signal is at least contour-corrected, luminance-corrected, and gamma-corrected for an image within the range on the display device. Since the signal is a signal for controlling a range in which one or more image processes of color correction are arbitrarily performed, a range in which contour correction, luminance correction, gamma correction, and color correction are performed can be favorably controlled.

According to the display control method described in claim 4, in the invention described in claim 1, the marker signal insertion processing is selectively performed based on a predetermined operation, thereby enabling image processing. Can be easily selected based on a predetermined operation.

According to the display control method described in claim 5, in the invention described in claim 1, the range designated by inserting the marker signal is the entire screen to be displayed. The present invention can also be applied to control for performing image processing.

According to the display control method described in claim 6, in the invention described in claim 1, the control signal for instructing the image processing state is provided at a predetermined position other than the position where the marker signal within the range is inserted. By performing the insertion process, the image processing state can be controlled to an arbitrary state.

According to the display control method described in claim 7, in the invention described in claim 1, in the marker signal insertion processing, the display device to which the video signal is supplied is determined and the marker signal is inserted into the display device. By performing the processing only when image processing based on is possible, it is possible to solve a problem that a marker signal is inserted when a display device that cannot be controlled by a marker signal is connected.

According to the display control method described in claim 8, in the invention described in claim 7, the control signal for instructing image processing executable on the determined display device based on the marker signal is set within the range. By performing the process of inserting the marker signal at a predetermined position other than the position where the marker signal is inserted, it is possible to more finely control the image processing state according to the determined type of the display device.

According to the ninth aspect of the present invention, when the image control unit executes the process of inserting an image in a predetermined state, data indicating a range where the image is inserted is inserted as a marker signal. A video signal is generated, and a video signal capable of controlling display of a specific range of video specified by the marker signal can be generated. By simply supplying the video signal generated by the display control device to the display device side, a specific video signal can be generated. Appropriate display control for images in the range of. Therefore, the user of the display device automatically sets the image processing state without performing the setting operation.
It is possible to set an appropriate display state for each range in the screen, for example, an image display range such as a still image or a moving image,
When displaying a video in which a display range of character information is mixed in one screen, a display control device capable of performing control to appropriately display in each range without a user operation for that purpose is provided. can get.

According to the display control device described in claim 10, in the invention described in claim 9, the marker signal insertion processing section generates a marker signal generated by combining primary color signals of a predetermined level in a predetermined pattern. With the configuration for insertion, a marker signal can be generated and inserted with a simple configuration.

According to an eleventh aspect of the present invention, in the display control device according to the ninth aspect, an operation command input unit is provided, and a marker signal insertion process is performed based on the operation command input to the operation command input unit. By selectively performing the marker signal insertion processing in the section, it is possible to easily select whether or not to execute predetermined image processing based on the marker signal by supplying an operation command to the operation command input section.

According to the twelfth aspect of the present invention, in the ninth aspect of the present invention, the range in which the image in the predetermined state is inserted under the control of the image control unit is the entire screen to be displayed, and the marker signal By inserting the marker signal into at least two corners of the displayed screen by the insertion processing unit, it is possible to execute control for performing predetermined image processing on the entire screen.

According to the display control device of the thirteenth aspect, in the invention of the ninth aspect, the marker signal insertion processing section performs image processing at a predetermined position within a range other than the position where the marker signal is inserted. By performing a process of inserting a control signal indicating a state, the image processing state can be controlled to an arbitrary state by a video signal output by the display control device.

According to the display control device described in claim 14, in the invention described in claim 9, the image control unit includes:
By determining the display device of the supply destination of the video signal, only when the determined display device can perform image processing based on the marker signal, by performing the marker signal insertion processing in the marker signal insertion processing unit, For example, when a display device that cannot be controlled by a marker signal is connected, the marker signal insertion processing is not performed.

According to the display control device described in claim 15, in the invention described in claim 9, the control signal for instructing image processing executable on the display device determined by the image control unit based on the marker signal is: By inserting the marker signal at a predetermined position other than the position where the marker signal is inserted by the marker signal insertion processing unit, it is possible to output a video signal that can more finely control the image processing state according to the type of the determined display device. .

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration example of a computer device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a system configuration example of a computer device according to the first embodiment of the present invention.

FIG. 3 is a flowchart illustrating an example of a display control process according to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram illustrating an example of a display state according to the first embodiment of the present invention.

FIG. 5 is an explanatory diagram illustrating an example of a marker signal according to the first embodiment of the present invention.

FIG. 6 is a block diagram illustrating an example of a display device whose display is controlled by a video signal generated according to the first embodiment of the present invention.

FIG. 7 is an explanatory diagram showing an example of another display state according to the first embodiment of the present invention.

FIG. 8 is an explanatory diagram showing an example of another display state according to the first embodiment of the present invention.

FIG. 9 is an explanatory diagram showing an example of another display state according to the first embodiment of the present invention.

FIG. 10 is an explanatory diagram illustrating an example of another display state according to the first embodiment of the present invention.

FIG. 11 is an explanatory diagram illustrating an example of a display state according to the second embodiment of the present invention.

FIG. 12 is an explanatory diagram illustrating an example of a display state according to the second embodiment of the present invention.

FIG. 13 is a flowchart illustrating an example of a display control process according to the second embodiment of the present invention.

FIG. 14 is an explanatory diagram showing an example of another display state according to the second embodiment of the present invention.

FIG. 15 is an explanatory diagram showing an example of a display state according to the third embodiment of the present invention.

FIG. 16 is a flowchart illustrating an example of a display control process according to the third embodiment of the present invention.

FIG. 17 is an explanatory diagram showing an example of another display state according to the third embodiment of the present invention.

FIG. 18 is an explanatory diagram showing an example of another display state according to the third embodiment of the present invention.

FIG. 19 is an explanatory diagram showing an example of another display state according to the third embodiment of the present invention.

FIG. 20 is an explanatory diagram showing an example of another display state according to the third embodiment of the present invention.

FIG. 21 is an explanatory diagram showing an example of another display state according to the third embodiment of the present invention.

FIG. 22 is a flowchart illustrating an example of a control process in a case where the processes according to the embodiments of the present invention are executed based on model determination.

[Explanation of symbols]

100 ... display screen, 101, 103, 111, 121,
124, 135... Image display windows, 102a to 10
2d, 104a, 104b, 106a to 106d, 10
8a, 108b, 109a to 109d, 112a to 11
2d, 122a to 122d, 125a, 125b, 12
8a to 128d, 131a, 131b, 133a to 13
3d, 135a to 135d ... marker signals, 105, 1
07: image display range, 113: on display, 114: off display, 115, 117: cursor display, 116: menu display, 123, 126, 129, 132, 13
4,136 ... control signal, 137 ... first menu display section,
140: second menu display unit, 200: computer main unit, 201: control unit, 204: keyboard, 208
... video processing unit, 209 ... video output unit, 210 ... display device

Claims (15)

[Claims] When generating a video signal to be displayed on a predetermined display device, a predetermined marker signal is added to a video signal at a position corresponding to at least two diagonal corners of a predetermined range in a displayed screen. A display control method for performing a process of inserting. 2. The display control method according to claim 1, wherein the marker signal is generated by combining primary color signals of a predetermined level in a predetermined pattern. 3. The display control method according to claim 1, wherein the marker signal is at least one of an outline correction, a luminance correction, a gamma correction, and a color correction for the image within the range on the display device. A display control method which is a signal for controlling a range in which the above image processing is arbitrarily performed. 4. The display control method according to claim 1, wherein the marker signal insertion processing is selectively performed based on a predetermined operation. 5. The display control method according to claim 1, wherein the range specified by inserting the marker signal is the entire screen to be displayed. 6. The display control method according to claim 1, wherein a control signal indicating an image processing state is inserted into a predetermined position other than a position where the marker signal is inserted in the range. . 7. The display control method according to claim 1, wherein in the marker signal insertion processing, a display device to which a video signal is supplied is determined, and the display device can perform image processing based on the marker signal. Display control method that is performed only in the case. 8. The display control method according to claim 7, wherein the control signal for instructing image processing executable on the determined display device based on the marker signal is a position other than the position where the marker signal within the range is inserted. A display control method for performing a process of inserting the information at a predetermined position. 9. An image control unit for controlling an image in a predetermined state to be inserted into a predetermined range of a video signal; and a video signal at a position corresponding to at least two diagonal corners of the predetermined range. A display control device comprising: a marker signal insertion processing unit for inserting a marker signal. 10. The display control device according to claim 9, wherein the marker signal insertion processing section inserts a marker signal generated by combining primary color signals of a predetermined level in a predetermined pattern. 11. The display control device according to claim 9, further comprising: an operation command input unit, wherein the marker signal insertion processing unit performs a marker signal insertion process based on an operation command input to the operation command input unit. Selective display control device. 12. The display control device according to claim 9, wherein a range in which an image in a predetermined state is inserted under the control of the image control unit is the entire screen to be displayed, and is displayed by the marker signal insertion processing unit. A display control device for inserting the marker signal into at least two corners of the screen. 13. The display control device according to claim 9, wherein the marker signal insertion processing unit sends a control signal for instructing an image processing state to a predetermined position within the range other than the position where the marker signal is inserted. Display control device to be inserted. 14. The display control device according to claim 9, wherein the image control unit determines a display device to which the video signal is supplied, and the determined display device can perform image processing based on the marker signal. A display control device that performs marker signal insertion processing in the marker signal insertion processing unit only in the case. 15. The display control device according to claim 14, wherein the control signal for instructing image processing executable on the display device determined by the image control unit based on the marker signal is transmitted by the marker signal insertion processing unit, A display control device for inserting the marker signal in a predetermined position other than the position where the marker signal in the range is inserted.