JPH05236372A - Control and display device of television receiver - Google Patents

Abstract

PURPOSE:To easily grasp the actual state of a screen while controlling and enable the correct control by forming a wide video surface from the display positions of controlled items and a controlled variable mark to the end side of horizontal scanning. CONSTITUTION:The controlled items 7 display items regarding video control, e.g. depth of colors, a shade, a contrast, brightness, etc. The controlled variable mark 8 is displayed below the display position of the controlled items 7 with a width nearly equal to the character range of the controlled items 7, and each time one of the controlled items 7 is specified by up/down push-button operation on a remote controller, the controlled variable of the specified item is indicated. A simple program displays the respective controlled items 7 on the screen at a time, and respective controlled variable marks are displayed by the controlled items 7 or each time the controlled items 7 are specified to secure the wide video surface 9, so the picture quality can easily be adjusted while looking over a video.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver for displaying a controlled item (7) and a controlled variable mark (8) on a screen between cathode lines.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 1, a television receiver supplies a video signal from a tuner (1) to a video processing circuit (2) and displays a video on a screen of a cathode ray tube (5). ing. The control of the state of the screen such as the brightness of the screen of the cathode ray tube (5) is controlled by the microcomputer (3) by the image processing circuit (2).
Is controlled electronically, and the controlled circuit and the controlled variable mark are displayed on the screen by the switch circuit (4),
It indicates where in the control range the control value is. As shown in FIG. 4, the control amount mark is displayed by pressing the menu button on the remote controller to display the characters of the controlled item (7) at the bottom of the screen and the control range (10) at the full horizontal scanning range of the screen. It is indicated by a thin bar, and the control position cursor (11) indicates where the current control state is in the control range (10), and the controlled item (7) is displayed by operating the up / down push button of the remote controller. The control amount is changed by sequentially switching and pressing the left and right buttons of the remote controller to move the position of the cursor (11) left and right. This method is inconvenient in that it is difficult to grasp the overall control status because the controlled items are switched and displayed one by one.

Further, conventionally, as shown in FIG. 5, by operating a menu switch of a remote controller, all controlled items (7) and respective control ranges (10) are displayed all at once, and the up and down buttons of the remote controller are pressed. The designated items (7) are switched one by one by the operation, and the control amount mark is displayed on the control range of the designated item, and the control amount mark is displayed on the control range (10) by pushing the horizontal button. There is also proposed a method of adjusting the control amount by moving it to the left and right.

The method of FIG. 5 has the advantage that the controlled items are displayed on the screen all at once and the respective control amounts can be checked, but on the other hand, the bar indicating the control range (10) is displayed on the entire screen (6). And because the control amount mark is displayed, it interferes with the observation of the image,
This is an obstacle when adjusting the control amount while checking the image status.

Further, the bar (10) for displaying the control range is controlled by the clock signal of the microcomputer (8) and the switch circuit (4).
It is configured to match the timing with a predetermined dot for horizontal scanning. However, even though the horizontal synchronization transmission frequency is locked and does not change, the clock frequency to be mounted with timing is inevitable to some extent due to the error and temperature characteristics of each component of the electronic circuit element.
Therefore, the tip of the control range bar (10) on the horizontal scanning end side is not fixed, and it may be too short to approach the center of the screen, or too long to be off the screen. In order to solve this problem, an expensive transmission circuit and a temperature correction circuit were provided, and it was necessary to adjust the character position.

[0006]

According to the present invention, each controlled item (7) to be displayed on the screen is displayed in a row at the same time by vertically arranging it closer to the horizontal scanning start side of the screen and simultaneously displaying the controlled item ( 7)
The display position of the controlled variable mark (8) is provided in the range below the display position of the controlled item (7) and is almost equal to the display length of the controlled item (7), and it is horizontal from the display position of the controlled variable item (7) and the controlled variable mark (8). A wide image plane (9) is formed between the scanning end sides.

[0007]

[Operation and effect] The number of items can be easily understood by displaying the controlled items (7) arranged vertically. Moreover, since the controlled item and the control amount mark are brought close to the start side of the horizontal scanning to form a wide image surface in the center of the screen, the actual screen state can be easily grasped while performing the control, and the correct control can be performed. Since the controlled item and the control amount mark are displayed on the start side of horizontal scanning, changes in the display position due to temperature changes and component variations are small, and there is no need for expensive transmitter circuits, temperature corrections, character position adjustments, etc. Becomes

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the case of an ordinary television receiver, since deflection scanning is performed from left to right, the start side of deflection scanning is on the left side. 2 and 3 show an example of implementation of the present invention. In FIG. 2, the controlled items include items related to image control, such as color density, hue, contrast, brightness, image quality, etc., and further regarding sound, as shown in FIG. 3, high range, low range, center, Display front, rear, surround, balance, woofer, noise reduction, speed modulation, etc.

The controlled variable mark (8) is a controlled item as shown in FIG.
At the bottom of the display position of (7), it is displayed with a width almost equal to the character range of the controlled item, and each time one of the controlled items is specified by the push button operation of the up and down direction of the remote control. , Represents the control amount of the specified item.

Further, according to the present invention, as shown in FIG. 3, each control amount mark for each controlled item can be displayed in a length substantially equal to the display position length of the controlled item.

In the present invention, in order to display the controlled item (7) and the controlled variable mark (8) closer to the starting side of horizontal scanning as shown in FIG. 2, the microcomputer (3) is set to the positions shown in FIGS. The program will be implemented.

In FIG. 6, when (previous processing) (12) such as key input processing or pressing of a menu button on the remote controller is executed, depending on which horizontal scanning line is counted from vertical synchronization, From LINE = 1, LINE = (n-1) is determined. When the display item is displayed on the 5th line as shown in FIG. 2 and the control display mark (8) appears on the 6th line, since n = 6 in FIG. 6, horizontal scanning from LINE = 1 to LINE = 5. For lines, character display processing (14) for each first line, n-
The character display process (14) on the first line is executed.

When LINE = n is determined (15), bar display processing (16) is executed.

In the character display process (14) for each line, assuming that the number of characters per line is 7 as shown in FIG. 7, the character display process (14) starts and the number of characters becomes 0 (18). The character display process (19) is performed, the number of characters is increased (20) one after another, and the process is repeated (22) until the number of characters reaches 7. When 7 characters have been displayed (21), the character display processing for that line is completed and the character for the next line is displayed.

As can be seen in this program, each line only displays characters, and the bar display process (1
6) The program is simplified because it only does.

On the other hand, the program for the conventional screen display shown in FIG. 5 is as shown in FIG. 8, starting from the previous processing (12) and processing from the first line to the nth line (13) one after another. To go. In each line, display processing (23) for both characters and bars is performed.

In this display process, as shown in FIG. 9, the number of characters =
Character display processing (25) is performed from 0 (18) to n = 7, and the number of characters =
Bar display processing (24) from 8 to 20 is repeated (27) until the number of characters reaches 20, and when the number of characters becomes 20 (2
6), the process ends. Since the character display (25) and the bar display (24) are executed for each line, the program becomes extremely complicated.

According to the present invention, each controlled item is simultaneously displayed on a screen by a simple program, and each controlled variable mark is displayed for each controlled item or each time the controlled item is specified.
Since a wide image plane (9) is secured, there is an advantage that the image quality can be easily adjusted while watching the image. Control amount mark (8)
Since the bar (10) indicating the control range is located on the horizontal scanning start side, even if there is an error in the display position due to the variation of the temporary electronic elements, the actual variation length can be limited to a small value, which is an excellent feature. Is to have.

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made within the scope of the claims.

[Brief description of drawings]

FIG. 1 is a circuit configuration diagram of a microcomputer.

FIG. 2 is an example of a screen display of the present invention.

FIG. 3 is a screen display of another embodiment.

FIG. 4 is a screen display of a conventional example.

FIG. 5 is another screen display of the conventional example.

FIG. 6 is a screen display program of the present invention.

FIG. 7 is a screen display program of the present invention.

8 is a screen display program of the conventional example shown in FIG.

9 is a screen display program of the conventional example shown in FIG.

[Explanation of symbols]

 (2) Video processing circuit (3) Microcomputer (4) Switch circuit (5) Cathode ray tube (6) Screen (7) Controlled item (8) Control amount mark (9) Video screen

Claims (1)

[Claims] 1. A microcomputer (3) is connected to an image processing circuit (2) and a switch circuit (4) of a cathode ray tube (5), and a controlled item (7) and a controlled variable mark (8) are displayed on a screen (6). In the television receiver that displays), each controlled item (7) that should be displayed on the screen (6) of the cathode ray tube (5) is arranged vertically in close proximity to the horizontal scanning start side of the screen and displayed simultaneously. In addition, below the display position of the controlled item (7), the display position of the controlled variable mark (8) is provided in a range approximately equal to the display length of the controlled item (7),
A control display device for a television receiver, in which a wide image plane (9) is formed between a display position of a controlled variable item (7) and a controlled variable mark (8) and a horizontal scanning end side.