JPH04345388A - Wide screen television receiver - Google Patents

Abstract

PURPOSE:To set at least three kinds of display magnification at the time of enlarging and displaying a video signal of a non-wide aspect ratio on a wide display by providing a specific wide cursor generating circuit or the like. CONSTITUTION:This device is provided with an interpolation double speed converting means 102, mode setting means 104, aspect ratio converting means 103, wide cursor adding circuit 105, and wide display 106. The wide cursor adding circuit 105 is constituted of a cursor signal generating circuit 107, and a cursor signal superimposing circuit 108. The video signal on which a wide cursor signal is superimposed is supplied to the display 106, the wide cursor signal according to the display scale factor is displayed, and a range in which the video signal is magnified and displayed on an entire screen is visually communicated to a user at the next stage. Then, the setting of at least the three kinds of display scale factor can be realized by using, for example, a field memory and a line memory as for a vertical direction, and by using, for example, the line memory and a memory in which one picture element is stored as for a horizontal direction.

Description

[Detailed description of the invention]

0001

FIELD OF THE INVENTION This invention relates to wide screen television receivers. In other words, if a video signal with a non-wide aspect ratio (for example, 4:3) is input, it will be converted to a wide aspect ratio (for example, 16:3).
:9) When trying to display on a display screen with
The image becomes distorted and stretched horizontally, so by converting the aspect ratio before displaying it on the display screen, the video signal with a non-wide aspect ratio can be
On a display screen with a wide aspect ratio, an image with a non-wide aspect ratio is displayed as a normal image with no distorted shape. The present invention relates to such a wide screen television receiver.

0002

[Prior Art] As television receivers have become larger, it has become essential to improve the image quality of television signals.
High-definition television system or EDTV (Exte
New systems, such as 2019 (definition TV), have been proposed and are being put into practical use.

Among these, the high-definition television system differs from the conventional NTSC system television signal.
One of its major features is that it has a wide aspect ratio of :9).

[0004] EDTV was developed in two stages, the first generation and the second generation, and the first generation had the same non-wide aspect ratio (4:3) as before.
The second generation is scheduled to have a wide aspect ratio of (16:9). As described above, it is expected that television systems with a wide aspect ratio of (16:9) will become mainstream in the future, and television receivers will also use displays with a (16:9) aspect ratio.

[0005] Therefore, when receiving a video signal with a non-wide aspect ratio of (4:3) such as that based on the normal NTSC system, as shown in Japanese Patent Application Laid-open No. 1-194783, for example, Leave it as is (16:9)
When displayed on a display surface with a wide aspect ratio, the image becomes elongated in the horizontal direction, resulting in an irregular shape.
As shown in the figure, the video signal is displayed on a display screen with a wide aspect ratio of (16:9) as a normal image without distortion, although it has a non-wide aspect ratio of (4:3).

Furthermore, when receiving a horizontally elongated video signal with blanks inserted above and below the image, as shown in FIG. 2(b), such as movie software, the image is By enlarging the image vertically and displaying it, we have devised a way to prevent blank areas from being seen, and to make effective use of the horizontally long display surface with a wide aspect ratio to obtain a realistic display image. ing.

FIG. 2 is an explanatory diagram showing an example of conventional image display related to a wide display screen.

[0008]

[Problem to be Solved by the Invention] As described above, a television receiver equipped with a wide display screen can receive not only video signals with a wide aspect ratio, but also video signals with a non-wide aspect ratio. In order to display the correct image, we perform aspect ratio conversion such as compressing the video signal using memory, and in this way, several different display operations can be performed depending on the input video signal. It was necessary to use different display modes to take advantage of this.

However, movie software with various dimensional display modes is supplied on the market, and when trying to display these on a wide TV screen, the method shown in (a) in FIG.
) and (c), there is a problem that only two types of display modes on a wide display screen cannot adequately handle the problem.

[0010] A first object of the present invention is to provide a television receiver equipped with a wide display with at least three display magnifications (conventional The objective is to provide a wide screen television receiver that can be configured (limited to two types).

[0011] A second object of the present invention is that when a part of the screen of an input image is extracted and enlarged and displayed as an image with a wide aspect ratio, the part of the screen covers the entire screen of the input image. To provide a wide screen television receiver having a new function of visually informing a user in advance of where the target will be hit.

0012

[Means for Solving the Problems] The first object is to perform interpolation double-speed conversion on an input video signal to at least create an interpolated scanning line signal and double-speed conversion for sequential scanning, and output the non-interlaced result. means, a mode setting means for setting a display method on a display, and a plurality of conversion modes are selectively set by a setting output signal of the mode setting means, and a non-wide aspect that is an output of the interpolation double speed conversion means. A television receiver comprising: aspect ratio converting means for converting a ratio output signal into a signal suitable for displaying on a wide aspect ratio display, and a wide display for displaying the output signal of the aspect ratio converting means. This can be achieved by machine.

[0013] The second object is to provide an interpolation double-speed conversion means for at least creating an interpolated scanning line signal and double-speed conversion for sequential scanning of an input video signal, and outputting the non-interlaced result, and display on a display. a mode setting means for setting a method; and a plurality of conversion modes are selectively set by a setting output signal of the mode setting means, and a non-wide aspect ratio output signal output from the interpolation double speed conversion means is widened. aspect ratio converting means for converting and outputting a video signal suitable for display on a display with a specific aspect ratio; and a conversion mode set by the mode setting circuit by inputting the output video signal from the aspect ratio converting means. The part of image 1 to be enlarged and converted to wide aspect in advance according to the image 1 screen.
This can be realized by a television receiver equipped with a wide cursor addition circuit that outputs a video signal processed so that it can be displayed as a cursor on the screen, and a wide display that displays the output video signal of the wide cursor addition circuit.

[0014]

[Operation] For the first purpose, the interpolation double speed conversion means is capable of converting a video signal portion into a normal NTSC signal with a non-wide aspect ratio of (4:3) or a movie software with blanks at the top and bottom. NT that is inserted and the video signal part is horizontal
When an SC signal is input, signal processing such as Y/C separation, scanning line interpolation, and double speed conversion processing is performed to output a double speed non-interlaced video signal.

Further, when the input signal is a second generation EDTV signal, widening processing or addition of high-definition information is performed, and then double speed conversion processing is performed. For example, the luminance signal and color difference signal created by the interpolation double speed conversion means are horizontally reduced by the aspect ratio conversion means or expanded using an interpolation filter,
In the vertical direction, an interpolation filter is used to enlarge the image to match the aspect ratio with the display.

At this time, the aspect ratio converting means is controlled by the mode setting means so that the reduction or enlargement magnification is set, and at least three types of conversion modes are set. By using such a means, it is possible to provide a wide screen television receiver that can set at least three types of display magnification for displaying a signal with a non-wide aspect ratio on a wide display.

[0017] For the second purpose, the interpolation double speed converting means is capable of converting a video signal into a normal NTSC signal having a non-wide aspect ratio of (4:3) or a movie software with blanks at the top and bottom. If an inserted NTSC signal with a horizontally long video signal portion is input, signal processing such as Y/C separation, scanning line interpolation, and double speed conversion processing is performed to create a double speed non-interlaced video signal. Output.

Further, when the input signal is a second generation EDTV signal, widening processing or addition of high-definition information is performed, and then double speed conversion processing is performed. For example, the luminance signal and color difference signal created by the interpolation double speed conversion means are horizontally reduced by the aspect ratio conversion means or expanded using an interpolation filter,
In the vertical direction, an interpolation filter is used to enlarge the image to match the aspect ratio with the display.

At this time, the aspect ratio converting means is controlled by the mode setting means so that the reduction or enlargement magnification is set, and at least three types of conversion modes are set. The wide cursor adding circuit inputs the output video signal from the aspect ratio converting means and converts a portion of one image screen into a wide aspect for enlarged display according to the conversion mode set by the mode setting circuit. , and outputs a video signal by processing it so that a cursor is added to it. The output video signal of this wide cursor addition circuit is displayed on a wide display.

By using such a means, it is possible to set at least three types of display magnification for displaying a signal with a non-wide aspect ratio on a wide display, and at the same time, the wide aspect ratio image to be displayed can be It is possible to provide a wide-screen television receiver with a new function that allows the user to visually inform the user in advance where the image will appear on one screen.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. Further, FIG. 3 is an explanatory diagram showing a display form of a display screen according to the present invention. In Figure 1, 1
01 is an input terminal for digitized video signals, 102
103 is an interpolation double-speed processing circuit that performs signal processing according to the input signal and outputs a double-speed video signal, and 103 is an aspect ratio for adapting the aspect ratio of the signal from the interpolation double-speed processing circuit 102 to a wide display. conversion circuit,
104 is a mode setting circuit for specifying the conversion method of the aspect ratio conversion circuit 103; 105 is a wide cursor addition circuit that adds a wide cursor to the output signal of the aspect ratio conversion circuit 103; 106 is a mode setting circuit for specifying the conversion method of the aspect ratio conversion circuit 103; 16:9) landscape display. Further, in the wide cursor addition circuit 105, 107
108 is a cursor signal generation circuit, and 108 is a cursor signal superimposition circuit.

In this embodiment, first, an NTS having a non-wide aspect ratio of (4:3) is used as an input video signal.
Consider the C signal. A digitized video signal input from a video signal input terminal 101 is input to an interpolation double speed processing circuit 102, where signal processing is performed according to the input signal and output as a double speed video signal.

[0023] The interpolation double speed processing circuit 102 uses a normal NTSC signal with a non-wide aspect ratio of (4:3), or a video signal part with blanks inserted at the top and bottom like movie software. When a horizontally long NTSC signal is input, signal processing such as Y/C separation, scanning line interpolation, and double speed conversion processing is performed to output a double speed video signal. Further, when the input signal is a second generation EDTV signal, widening processing or addition of high-definition information is performed, and double speed conversion processing is also performed.

The video signals, such as a luminance signal and a color difference signal, created by the interpolation double speed processing circuit 102 are supplied to an aspect ratio conversion circuit 103. In this embodiment, the display (display device) is a (16:9) horizontally elongated display 106, so when displaying a (4:3) video signal, as shown in FIG. 3(a), Either compress it horizontally and display it, or (b2) and (c) in Figure 3.
2), expand both horizontally and vertically as shown in (d2),
The top and bottom will be cut and displayed. The aspect ratio conversion circuit 103 performs horizontal compression or horizontal/vertical expansion signal processing.

[0025] When adopting the display method shown in FIG. 3(a),
The magnification may be set to 3/4 times in the horizontal direction and 1 times in the vertical direction. Similarly, when using the display method shown in (b2) in Figure 3, the horizontal direction is (3/4) x (7/6
), and set the magnification to 7/6 times in the vertical direction. Further, when the display method of (c2) in FIG. 3 is adopted, the magnification is set to 1 in the horizontal direction and 4/3 in the vertical direction.

Furthermore, when using the display method shown in FIG. 3 (d2), the magnification is set to (3/4) x (5/3) times in the horizontal direction and 5/3 times in the vertical direction. Just do it. This magnification setting is performed by the output signal of mode setting circuit 104 in FIG.

The output signal of the mode setting circuit 104 is supplied to the aspect ratio conversion circuit 103 and at the same time, it is also supplied to the wide cursor addition circuit 105, which specifies the shape of the wide cursor and adds the wide cursor signal. Used to set conditions.

The wide cursor addition circuit 105 adds (superimposes) a wide cursor signal to the output signal of the aspect ratio conversion circuit 103, and converts the aspect ratio (16:
9) is supplied to the horizontally elongated display 106.

Since it is easier for the user to understand the conditions for adding the wide cursor signal only when the display method shown in FIG. 3(a) is adopted, the output signal of the mode setting circuit 104 is When the display mode of a) is selected, (b1) of FIG.
, (c1), or (d1), a wide cursor signal (a square frame that specifies the range to be enlarged and displayed) is added.

Further, the wide cursor addition circuit 105
A cursor signal generation circuit 107 generates a wide cursor signal according to the output signal of the mode setting circuit 104, and an aspect ratio conversion circuit 103 converts the generated wide cursor signal into an aspect ratio conversion circuit 103.
cursor signal superimposition circuit 108 superimposed on the output signal from
It consists of The video signal on which the wide cursor signal has been superimposed is supplied to the horizontally elongated display 106, and as shown in FIG. 1, the wide cursor signal is displayed according to the display magnification, and in the next step, it is enlarged and displayed on the entire screen. Visually inform the user of the range.

In order to set at least three types of display magnification as shown in (b1), (c1), and (d1) in FIG. It becomes possible. Further, in the horizontal direction, for example, it can be realized by using a line memory and a memory that stores one pixel.

One specific example of the aspect ratio conversion circuit 103 for realizing this display method is shown in FIG. In FIG. 4, 401 is an input terminal for the double-speed signal from the interpolation double-speed processing circuit 102, 402 is a field memory, and 403
4 is a line memory; 404 and 405 are coefficient units; 406 is an adder; 407 is a selector for switching between the output signal of the field memory 402 and the output signal of the adder 406;
08 is a control circuit that controls the field memory 402, the line memory 403, and the coefficient multipliers 404 and 405; 409 is a vertical magnification change circuit; 410 is a horizontal magnification change circuit; and 411 is an output terminal to the display 106.

Regarding the circuit shown in FIG. 4, first, the operation of the vertical magnification changing circuit 409 will be explained using FIG. FIG. 6 is a diagram showing an example of the scanning line structure when the scanning line on the screen of the display is viewed from the side, and the magnification is 4/2 as shown in (c2) in FIG.
3 examples are shown.

FIG. 6A shows a non-interlaced double-speed video signal input from the input terminal 401 to the field memory 402. Further, (b) of FIG. 6 shows an output signal read out from the field memory 402 with a delay. Scanning lines A, B, and C in FIG. 6(b) are delayed by one line with respect to the same scanning line in FIG. 6(a), and scanning line D is delayed by two lines. ing. Furthermore, FIG. 6(c) shows the output signal of the line memory 403, and FIG. 6(d) shows the values of the coefficient multipliers 404 and 406 (
α, β) and the output signal of the adder 406 are shown.

Normal image field memory cannot be randomly accessed, so in this example, a method is adopted in which the reading operation for one line is stopped after reading three lines.
Achieves 3x magnification. As a result, the signal given to the field memory 402, (a) in FIG.
It is read out and output in the form shown in b).

The line memory 403 is controlled so that the signal of the previous line is repeatedly read out during a period when no signal is read out from the field memory 402. By this control, the output signal of the line memory 403 is changed as shown in (c) of FIG.
The output is shown in the form shown below. Note that the scanning line Z in FIG. 6 indicates the scanning line that arrived one scanning line before the scanning line A, and it is assumed that the scanning lines arrive in the order of A, B, and C.

These output signals, (b) and (c) in FIG.
On the other hand, if the coefficients α and β of the coefficient multipliers 404 and 405 are set as shown in FIG. 6(d), the adder 406
An enlarged video signal interpolated in the vertical direction is obtained. In the case of other magnifications, the field memory 402 is operated intermittently according to the magnification in the same manner as above.
Signals read from the field memory 402 and the line memory 40
This is realized by creating a signal interpolated with the signal read from 3.

If the image is not to be enlarged, this can be achieved by switching the selector 407 to the side a in FIG. Alternatively, in another method in which expansion is not performed, the coefficients α and β of the coefficient multipliers 404 and 405 may be set to 1 and 0, respectively, and the signal read from the field memory 402 may be directly used as the output signal from the adder 406. In this case, the selector 407 can be removed and the circuit can be simplified.

When FIGS. 7 and 8 are arranged one above the other and viewed as a single diagram, an input non-wide aspect ratio video signal is processed as shown in FIG. 6, and a wide aspect ratio video signal is created. FIG. 2 is an explanatory diagram specifically showing how the image is enlarged and displayed on the display screen. Figures 7 and 8 are a set of views, with Figure 7 showing the upper part of the screen and Figure 8 showing the upper part of the screen.
Shows the lower part of the screen.

In FIGS. 7 and 8, the number of scanning lines of the non-wide aspect ratio video signal is 24 per screen (a
, b, c, ..., v, w, x). Among these, scanning lines a, b, c and v, w, x are shown to be scanning lines corresponding to the blanking portions at the top and bottom of the screen when enlarged.

By creating new interpolated scanning lines (A, B, C, . . . , e, o, ka) using the procedure explained in FIGS. 4 and 6, the number of scanning lines is increased by 4/3 to 32. It becomes a book. On a wide display, 24 of these necessary video portions (E, F, G, . . . , Z, A, I) are displayed as wide aspect ratio video.

In this way, it is possible to display the magnification in the vertical direction using the display method shown in FIG. 3(c2). Also,
Other magnifications as shown in (b2) and (d2) of FIG. 3 can also be easily realized with the configuration of FIG. 4. In this case, the control circuit 408 operates the field memory 402 intermittently according to the magnification, and further multiplies the signal read from the field memory 402 and the signal read from the line memory 403 by a coefficient using coefficient multipliers 404 and 405. This is achieved by creating an interpolated signal by combining in the adder 406.

Next, the horizontal magnification changing circuit 410 shown in FIG. 4 will be explained. FIG. 5 is a block diagram showing an example of the configuration of the horizontal magnification changing circuit 410. In FIG. 5, 501
5 is an input terminal from the vertical magnification changing circuit 409, 502 is a line memory, 503 is a pixel memory that stores one pixel, 5
04 and 505 are coefficient units, 506 is an adder, and 508 is a control circuit that controls the line memory 502, the pixel memory 503, and the coefficient units 504 and 505.

The circuit of FIG. 5 performs almost the same operation except that the vertical direction in FIG. 4 is changed to the horizontal direction. That is, instead of the field memory 402 in FIG. 4 storing video signals in the vertical direction, the line memory 502 in FIG. The pixels are read out in a consistent manner. Further, a pixel memory 503 generates a video signal delayed by one pixel, and coefficient multipliers 504 and 505 and an adder 506 generate a pixel-interpolated signal. As a result, the horizontal magnification changing circuit 410 outputs the video signal to the output terminal 411 at the set horizontal magnification.

As can be seen from the above explanation, the clock frequency that is the basis of the operation of the horizontal magnification changing circuit 410 is the clock frequency that drives the output signal of the interpolation double speed processing circuit 102 when handling a video signal with a non-wide aspect ratio. The frequency is 4/3 times the frequency. The reason for this is that, as shown in FIG. 3(a), in order to display a non-wide aspect ratio video signal as a wide aspect ratio video signal,
This is because the image is displayed after being reduced to 3/4 times in the horizontal direction.

Therefore, (b2), (c2), (d
In either case 2), the clock frequency is 4/3 times the clock frequency that drives the output signal of the interpolation double speed processing circuit 102. Note that this clock frequency does not have to be exactly 4/3 times the frequency, but may be a nearby frequency that is an integral multiple of the horizontal scanning frequency within a range that meets the purpose of the present invention.

Furthermore, the circuit portion driven by the clock frequency 4/3 times is the field memory 40 in FIG.
2 or after the output of line memory 502 in FIG.
It is possible to consider outputs after , but the latter is preferable because it reduces power consumption.

As described above in detail with reference to the drawings, according to the embodiment shown in FIG.
By setting , you can change the display magnification in the horizontal direction and the display magnification in the vertical direction as desired. Therefore, it is possible to set at least three types of display magnification when displaying a non-wide aspect ratio signal on a wide display as a wide aspect ratio image. Furthermore, a new function can be realized in which a portion to be displayed as a wide aspect ratio image is displayed with a cursor in a non-wide aspect ratio signal.

Next, another embodiment of the present invention will be described, focusing on a cursor display method. FIG. 9 is a block diagram showing another embodiment of the present invention. In the figure, 901 is a cursor signal generation circuit, 902 is a brightness reduction circuit, and the other components are the same as in the embodiment shown in FIG.

The cursor signal generation circuit 901 generates, as a cursor signal, a signal that specifies an area that is not to be displayed as an image with a wide aspect ratio, such as the shaded area on the screen of the wide display 106, and sends the signal to the brightness reduction circuit 902. supply In response to this signal, the brightness reduction circuit 902 reduces the level of the brightness signal in the non-display area of the video signal output from the aspect conversion circuit 103 and supplies it to the wide display 106. As a result, the image displayed on the wide display 106 becomes a highly visible image in which the area to be wide-converted stands out, making it possible to more clearly convey the cursor position to the user.

FIG. 10 is a block diagram showing another embodiment of the present invention, in which 903 is a color signal off circuit, and the rest is the same as the embodiments of FIGS. 1 and 9.

In this embodiment, the color signal off circuit 903 receives the signal from the cursor signal generation circuit 901 and receives the signal from the aspect conversion circuit 103 to adjust the level of the color signal in the area that is not to be displayed. It is converted to a non-colored level and supplied to the wide display 106. As a result, the image displayed on the wide display 106 is
Only the area to be wide-converted becomes a colored image, making it possible to more clearly convey the cursor position to the user.

The cursor display method shown in FIGS. 9 and 10 can also be used in combination with the cursor frame only display method shown in FIG. I can tell you. Note that in order to reproduce the reference level of the luminance signal and the reference level of the color signal on the display, a cursor signal generation circuit 107,
And 901 is configured such that signal output is prohibited during the retrace period of the video signal.

[0054]

According to the present invention, there is provided a wide screen television receiver having at least three types of display magnification for displaying a signal with a non-wide aspect ratio on a wide display. It has the advantage of being able to provide

[0055] Furthermore, a wide screen television receiver has a new function that allows the user to be visually informed in advance of where on one screen of the image of an input video signal a wide aspect ratio image to be displayed falls. It has the advantage of being able to provide

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a display form of a conventional display screen.

FIG. 3 is an explanatory diagram showing an example of a display form of a display screen according to the present invention.

FIG. 4 is a block diagram showing an example of the configuration of an aspect ratio conversion circuit in FIG. 1;

FIG. 5 is a block diagram showing an example of the configuration of a horizontal magnification changing circuit in FIG. 4;

FIG. 6 is an explanatory diagram showing an example of a scanning line structure for explaining the operation of an aspect ratio conversion circuit.

FIG. 7 is a diagram illustrating a part of an explanatory diagram specifically showing how a non-wide aspect ratio video signal is processed and enlarged on a display screen as a wide aspect ratio video signal.

FIG. 8 is a diagram showing the remaining part of the explanatory diagram specifically showing how a non-wide aspect ratio video signal is processed and enlarged on a display screen as a wide aspect ratio video signal.

FIG. 9 is a block diagram showing another embodiment of the present invention.

FIG. 10 is a block diagram showing still another embodiment of the present invention.

[Explanation of symbols]

101... Video signal input terminal, 102... Interpolation double speed processing circuit, 103... Aspect ratio conversion circuit, 104... Mode setting circuit, 105... Wide cursor addition circuit, 106... Wide display, 107,901... Cursor signal generation circuit, 108 ...Cursor signal superimposition circuit, 402...Field memory, 403, 502...Line memory, 404,
405, 504, 505...coefficient, 406, 506...adder, 407...selection circuit, 408, 508...control circuit,
409...Vertical magnification change circuit, 410...Horizontal magnification change circuit, 503...Pixel memory, 902...Brightness reduction circuit, 903
...Color signal off circuit.

Claims (6)

[Claims] [Claim 1] When a video signal with a non-wide aspect ratio is input, by converting the aspect ratio, it is displayed as a normal image with a non-wide aspect ratio on a screen with a wide aspect ratio. In a wide screen television receiver, a cursor for selecting a part of a normal image having a non-wide aspect ratio once displayed on a screen having a wide aspect ratio is generated on the screen, and the cursor selected by the cursor is 1. A wide screen television receiver comprising a wide cursor generation circuit for enlarging and displaying a part of an image on a screen having a wide aspect ratio in the next step. 2. In a television receiver, an interpolation double-speed processing circuit that performs scanning line interpolation and double-speed conversion processing on an input video signal that uses an interlaced scanning method and outputs it as a video signal that uses a non-interlaced scanning method; an aspect ratio conversion circuit that has a plurality of conversion modes and converts the aspect ratio of the input video signal from the interpolation double speed processing circuit according to one of the plurality of conversion modes and outputs the converted image; a mode setting circuit that selects, instructs, and sets one of a plurality of conversion modes possessed by the conversion circuit; and an output video signal from the aspect ratio conversion circuit is input; A wide cursor addition circuit that generates a cursor signal for selecting a part of a display image according to a mode set for the aspect ratio conversion circuit, and superimposes the cursor signal on an input video signal and outputs the same, and the wide cursor A normal image having a non-wide aspect ratio is inputted with the output video signal from the additional circuit, and a cursor display for selecting a part of the image for later enlargement and display;
A wide screen television receiver comprising: a display screen having a wide aspect ratio for displaying; 3. The wide screen television receiver according to claim 2, wherein the wide cursor addition circuit comprises:
A cursor signal generation circuit that generates a cursor signal for selecting a part of a display image according to the mode set by the mode setting circuit for the aspect ratio conversion circuit; A wide screen television receiver comprising: a cursor signal superimposition circuit that superimposes and outputs a video signal output from the aspect ratio conversion circuit. 4. The wide screen television receiver according to claim 2, wherein the wide cursor addition circuit comprises:
a cursor signal generation circuit that generates a cursor signal for selecting a part of the display image according to the mode set by the mode setting circuit for the aspect ratio conversion circuit; and a cursor signal generated by the cursor signal generation circuit. a brightness reduction circuit that performs signal processing on the output video signal from the aspect ratio conversion circuit so that the brightness level of the remaining image part is lower than the brightness level of the part of the selected display image, and outputs the resultant image signal. A wide screen television receiver characterized by: 5. The wide screen television receiver according to claim 2, wherein the wide cursor addition circuit comprises:
a cursor signal generation circuit that generates a cursor signal for selecting a part of the display image according to the mode set by the mode setting circuit for the aspect ratio conversion circuit; and a cursor signal generated by the cursor signal generation circuit. and a color signal off circuit that performs signal processing on the output video signal from the aspect ratio conversion circuit so that the remaining image portions excluding the selected display image are not colored. A wide screen television receiver featuring: 6. In the wide screen television receiver according to claim 1, 2, 3, 4, or 5, among the plurality of conversion modes that can be set by the aspect ratio conversion circuit,
A wide screen television receiver characterized in that cursor generation is fixed to a specific mode.