JPH02312464A - On-screen display device - Google Patents

Abstract

PURPOSE:To use a few number of characters and to display the operation content clearly by varying the display state of characters in response to the operating state of a character display operating switch. CONSTITUTION:A display control circuit 13 controlling the operating state of a character display circuit 11 to be changed in response to the operating state of character display operating switches 5, 6 is provided. Then the operating state of the operating switches 5, 6 is changed to control the operating state of the character display circuit 11 in response to the operating state to vary the character display state. Thus, the operating content is displayed clearly with a few characters.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is applicable to color television receivers, monitor devices,
It is applied to projection type television receivers, etc., and displays various operation details such as screen type, image quality, brightness, volume adjustment amount, grid lines for convergence adjustment, etc. on the screen, such as letters and figures. The present invention relates to an on-screen display device configured to display characters.

[Prior Art] Figure 4 shows an example of on-screen display by a conventional on-screen display device, showing the screen type, image quality, brightness, hue,
Adjustment functions (7) such as color depth, treble, bass, etc., and adjustment values (8) for each of these functions are displayed on the screen (P), and the above adjustment functions (7) are omitted from illustration. The adjustment values (8) are changed and displayed as appropriate by operating a data adjustment switch (not shown).

Figure 5 shows another example of on-screen display using a conventional on-screen display device, in which the amount of control (8) for volume control is shown.
is displayed on the screen (P), and the volume is adjusted and displayed as appropriate by operating a volume increase/decrease switch (not shown).

FIG. 6 is another example of an on-screen display using a conventional on-screen display device.
Display the grid lines (3) for adjusting the convergence of the three colors on the screen (P
) J: is displayed, and in that display state, R
Convergence adjustment is performed until each grid line (3) of -GH matches.

[Problems to be Solved by the Invention] Conventional on-screen display devices are configured as follows, so the numerical display (7) shown in FIG.
In the case of (8), or the 8-display (9) shown in Figure 5.
), there is a problem in that unless you know the meaning and content of the displayed numerical values, you cannot clearly recognize the actual operation content.

Furthermore, when performing convergence adjustment by displaying the convergence adjustment grid line (3) shown in Figure 6,
If the amount of adjustment is indicated by a bar display (14) as shown in Fig. 7, the number of displayed characters will be very large, and the convergence adjustment will be performed along the grid line (3a) at the top end of the screen (P), for example. The above grid line (
3a) is hidden by the bar (14) indicating the amount of adjustment, making it difficult to adjust the entire screen appropriately.

Further, in the case of the a value display shown in FIG. 6, there is a problem in that unless the meaning and content of the displayed numerical value is known, the actual operation content cannot be clearly recognized.

This invention was made in order to solve the above-mentioned problems, and it is possible to display the action contents so that they can be clearly recognized using a small number of characters, and
An object of the present invention is to provide an on-screen display device that can improve operability.

[Means for Solving the Problems] An on-screen display device according to the present invention is provided with a display control circuit that controls the operation state of a character display circuit to change in response to the operation state of a character display operation switch. It is characterized by

[Function] According to the present invention, by changing the operation state of the character display operation switch, the operation state of the character display circuit is controlled in accordance with each operation state, and the character display state is changed. This makes it possible to clearly display the action content using a small number of characters.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described based on the drawings.

FIG. 1 shows an on-screen display device according to an embodiment of the present invention, in which R, G-B, and B in a projection television receiver are shown.
FIG. 2 is a block diagram showing a schematic configuration of a display device for three-color convergence adjustment. In the same figure, (lO) is a remote controller, and this remote controller (10)
for on-screen display of characters and R
- Two operation switches (5) and (8) are provided to control the convergence control microcomputer (15) that controls the voltage necessary to adjust the convergence of the three G-B colors. The switch (5) moves one color of R-G-B to the left, and the other switch (8) moves one color to the right.

(11) is the character display circuit, and the cathode ray tube (12)
A predetermined character signal is supplied to the cathode ray tube (
12) Display the character on the screen. (13) is a display control circuit, which is a convergence control microcomputer (15) that corresponds to the operation status of the two switches (5) and (8) in the remote controller (10).
is controlled to change the operating state of the display circuit (11).

(14) transfers the control data of the convergence control microcomputer (15) to the convergence circuit (16).
) is a D/A converter for converting into analog voltage so that it can be supplied to The above convergence circuit (1
8) corresponds to the analog voltage supplied from the D/A converter (14), and outputs R/G- to the cathode ray tube (12).
A voltage is applied to move one color of H.

Next, the operation of the above configuration will be explained.

Figure 2 shows the operation in the case of a display example for convergence adjustment of a projection television receiver, and (3) shows the grid lines for convergence adjustment displayed on the screen (P);
1) is a character indicating leftward movement, (2) is a character indicating rightward movement, and (4) is a character indicating the adjustment color currently being moved.

The character (1) indicating movement to the left is one of the switches (5) on the remote controller (10).
), the dots will decrease while this switch (5) is pressed and operated, and when the amount of adjustment to the left reaches the left limit, it will stop blinking and turn on. Control circuit (13
) is automatically controlled. Correspondingly, the convergence circuit (16) is automatically controlled by the convergence control microcomputer (15) via the D/A converter (14) so that one color of R-G/B moves to the left. be done.

In addition, the character (2) indicating movement to the right is the other switch (
6), and its display operation is automatically controlled in the same way as above.

FIG. 3 shows another display example for convergence adjustment in the projection television receiver, in which (IA) is a character indicating downward movement, (2A) is a character indicating upward movement, These correspond to the two switches (5) and (8) in the remote controller (10), respectively, and the display operation during convergence adjustment is the same as in the case of the left and right directions described above, so a detailed explanation will be omitted. do.

[Effects of the Invention] As described above, according to the present invention, since the display state of the character can be changed according to the operation state of the character display operation switch, the action content can be changed using a small number of characters. can be clearly displayed, and the current operating state can be accurately and easily visually recognized by character display, thereby improving operability.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a schematic configuration of an on-screen display device according to an embodiment of the present invention, and FIGS. 2 and 3 are on-screen examples of character display for convergence adjustment of a projection television receiver, respectively. The display diagrams, Figures 4 to 6 are on-screen display diagrams showing conventional character display examples, respectively, and Figure 7 is an on-screen display diagram in which the adjustment amount in the case of the display example of Figure 6 is displayed as a bar. be. (1), (2), (3), (4)...Character, (
5), (El)...operation switch, (10)...remote controller, (11)...character display circuit, (12)...branch tube, (13)...display control circuit. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] (1) In an on-screen display device equipped with a character display circuit that displays a character indicating the content of an operation on the screen, the operation switch for displaying the character and the operation state of the character display circuit corresponding to the operation state of this switch. 1. An on-screen display device comprising: a display control circuit that controls the display so as to change the display control circuit.