JPH0573009A - Display controller - Google Patents

Abstract

PURPOSE:To perform display which is easy for an operator to view and to facilitate operation in the case of operating a screen in a state where the brightness of the screen is set low. CONSTITUTION:When an instruction is given from an operation part 20 in order to display the brightness of the screen, the brightness previously decided is read out from a ROM 24 and an electronic volume 12 is set to a reference value. Thus, the brightness of a displayed video signal is set to a standard value. At the same time, a signal for expressing the pattern of an operation screen for adjusting the brightness is outputted by a character generator 16. Thereafter, the operator adjusts the brightness level by appropriate key operation, the brightness level set by the operator at this time is inputted in the electronic volume 12 at any time, and the brightness of a display unit is changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display control device for controlling display in a device having a display unit for displaying an image.

[0002]

2. Description of the Related Art Conventionally, in a display control device for controlling an image display unit such as a personal computer, the brightness / saturation of a video signal input to the display unit
It is said that the image signal of the operation screen for adjusting the hue etc. is superimposed on the video signal to be originally displayed and input to the display unit, the operation screen of the video signal is displayed, and the adjustment operation is performed in that state. There is a way.

[0003]

However, in the above-mentioned method, when the operation screen is displayed on the display unit in a state where the brightness of the display screen is low and the operator tries to perform the operation according to the screen, the operation screen is difficult to see. There was a problem that it was difficult. The present invention has been made in view of the above-mentioned conventional example, and an object of the present invention is to make the operation screen easy to see and to operate by automatically displaying the operation screen on a display unit at a predetermined brightness. To do.

[0004]

In order to achieve the above object, the display control device of the present invention has the following configuration. What is claimed is: 1. A display control device having display means for displaying input image information, and controlling display on the display means, wherein the input means for inputting data and the data input by the input means Determination means for determining whether it is an attribute change instruction, storage means for storing the standard screen brightness,
When the determination unit determines that the change instruction is given, the setting unit that sets the screen brightness to the brightness stored in the storage unit; and When the determination unit determines that the change instruction is given, the attribute change And a creating means for creating an image for operation.

[0005]

With the above configuration, the display control device of the present invention sets the screen brightness to the standard brightness stored when the image property change instruction is issued, and the operation screen for attribute modification is set with the brightness. Is displayed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A color image display device according to an embodiment of the present invention will be described in detail below with reference to the drawings. <Structure> FIG. 1 is a block diagram showing the structure of the image display device of this embodiment. In FIG. 1, 10 is an adder for adding a signal output from a character generator (character generator) 16 to a video signal, and 12 is a parallel I / O (PI).
O) An electronic volume adjusting the brightness level of the video signal based on the signal from 18, a monitor 14 for displaying the video signal, a character generator 16 for outputting a signal representing a pattern of characters, symbols, etc., and a parallel data 18 Input / output of PIO, 20 is an operation unit having keys for adjusting an image of the image display apparatus such as a brightness adjustment key, a readjustment key, and a hue adjustment key, and 22 is an operation unit 2
By controlling the pattern of characters, symbols, etc. output from the character generator 16 and the signal output from the PIO 18 by an operation from 0, the CPU 24 that controls the entire operation of the image display device, ROM for storing the standard value of the brightness level instructed to the electronic volume 12, 2
Reference numeral 41 is a standard value storage memory that stores a standard value of brightness in the ROM 24, and 26 is a RAM that stores programs and data executed by the CPU 22.

<Brightness Adjusting Operation> Next, the operation of adjusting the brightness according to the present embodiment will be described with reference to the flow charts of FIGS. The operator inputs the brightness adjustment key from the operation unit 20 while any image is displayed.
The processing of the flowchart is executed by the CPU 22, and has been described from this point.

The CPU 22 tests whether the input data is an instruction to change the brightness of the screen (S30). If the brightness is not changed, the CPU 22 proceeds to the processing corresponding to the data. If the brightness is changed, the CPU reads the standard value of the brightness level from the standard value storage memory 241 of the ROM 24 (S31),
The standard value is set in the electronic volume 12 via the PIO 18 (S32). Since the volume 12 determines the brightness to be displayed according to the value set here, the brightness of the displayed image is changed to the standard value and displayed. Next CP
U22 causes the character generator 16 to output a pattern of an operation screen for brightness adjustment, and causes the adder 10 to add it to the video signal and display this signal (S33). Figure 2
Shows the pattern display of the operation screen at this time. After that, the operator can adjust the brightness level appropriately by increasing the brightness with the right arrow key and decreasing the brightness with the left arrow key.

At this point, if the operator inputs something, the CPU 22 judges the input data, and if it is an end instruction (S35-YES), the output of the brightness adjustment pattern is stopped and the display is returned to the original brightness. Exit change mode. If not, it is determined whether the instruction is to change the brightness by inputting the rightward or leftward arrow (S36). If the brightness is changed, the input frequency is added to or subtracted from the currently set brightness value, and the value is sent to the electronic volume 12 and displayed again with the newly set brightness. (S36-YES → S32). If the input is irrelevant to the brightness adjustment, it is ignored and the next input is awaited (S36-NO).

By changing the brightness in the above procedure, the operation is not disturbed because the brightness is set to be extremely low. The brightness can be adjusted even with a monochrome display device. The standard brightness may be stored in the RAM 26 instead of the ROM 24. In this case, the standard brightness can be changed by the operator.

[0011]

Other Embodiments Not only the adjustment of the brightness but also the adjustment of the saturation can be performed. For this purpose, a circuit for adjusting the saturation is given a value representing the degree of saturation, as shown in FIG.
It is composed of In the configuration of FIG. 1, the saturation adjusting circuit 28 is configured to be adjustable by PIO.

In the apparatus of FIG. 5, when the operator inputs a saturation adjustment key for image display from the operation unit 20, the CPU 22 tests whether the input is an instruction to change the saturation (S40), and changes the saturation. If not, the process according to the input is performed. When the saturation is changed, the reference value of the brightness level is read from the ROM 24 by the control of the CPU 22, the electronic volume 12 is set to the reference value, and the character generator 16 outputs a signal representing a pattern of an operation screen for adjusting the saturation. Is output. This procedure will be described with reference to the flowchart of FIG.

<Saturation adjustment operation> When the operator inputs a saturation adjustment key from the operation unit 20 for saturation adjustment, the CPU 22 starts executing processing for saturation adjustment. The flowchart of FIG. 4 starts at this point. First, the brightness value at the start of processing is stored and stored in the RAM 26 (S41). For this reason, when setting the brightness, it is necessary to output the value to the PIO 18 and write and store it in the RAM each time. When the current brightness is stored, the standard value of the brightness level is read from the standard value storage memory 241 of the ROM 24 (S42), and the value is set to P.
Output to IO18 and reset brightness to standard value (S4
3).

Next, the pattern of the operation screen is displayed to allow the operator to input the saturation adjustment (S44).
The pattern is the same as in FIG. 2 except that the “brightness adjustment” is changed to a “saturation adjustment”. The operator operates the arrow keys according to this display screen to adjust the saturation. When the input for the saturation adjustment is made (S45), it is judged whether or not the inputted data is an instruction to end the saturation adjustment (S4).
If 6) is also a poetry volume instruction, the original brightness level saved in step S41 is sent to the PIO 18 to restore the screen brightness to the original level, and the saturation adjustment pattern is erased from the screen, and the original display is displayed. It returns to the content (S46-YES).

If it is not the end instruction, it is tested whether it is an instruction to change the saturation by inputting the arrow key (S47). If it is not a saturation change instruction, the input is ignored and the next input is awaited (S47-NO). If it is a saturation change instruction, the saturation adjustment circuit 28 sets the saturation setting value in accordance with the degree of the change instruction.
And the image being displayed with the changed saturation is displayed again (S48 → S44).

With the above procedure, the saturation of the image can be easily changed regardless of the current display brightness. Further, at the end of the saturation adjustment, the brightness may be kept at the standard value and set again. It should be noted that the present invention may be applied to a system composed of a plurality of devices, may be applied to a device composed of one device, and may be achieved by supplying a program to the system or the device. Needless to say, it is also applicable.

[0017]

As described above, in the display control device according to the present invention, when the operation screen is displayed on the display unit, the brightness is automatically set to a predetermined brightness so that the operation screen can be easily seen and the operation can be facilitated. ..

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an exemplary embodiment of the present invention.

FIG. 2 is a display example of an operation screen of the apparatus of the embodiment.

FIG. 3 is a procedure of brightness adjustment processing according to the embodiment.

FIG. 4 is a procedure of saturation adjustment processing according to the embodiment.

FIG. 5 is a block diagram showing a configuration of a second exemplary embodiment of the present invention.

[Explanation of symbols]

 10 adder, 12 electronic volume, 14 monitor, 16 character generator, 18 PIO, 20 operation unit, 22 CPU, 24 ROM.

Claims (3)

[Claims] 1. A display control device having display means for displaying inputted image information and controlling display on the display means, the input means for inputting data, and the input means for inputting the data. Determining unit that determines whether the data is an instruction to change the image attribute, a storage unit that stores the standard screen brightness, and if the determining unit determines that the change instruction, the storage unit stores the data. A setting unit configured to set the screen luminance to the determined luminance, and a generation unit configured to generate an image for the attribute changing operation when the determination unit determines that the instruction is a change instruction. Display controller. 2. The display control device according to claim 1, wherein the change instruction to be judged by the judging means is a brightness change instruction for changing the brightness of the screen. 3. The display means is a color display device for displaying a color image, and the change instruction to be judged by the judging means is a saturation change instruction for changing the saturation of the screen. The display control device according to claim 1.