JPH0561426A - Display control system - Google Patents

Abstract

PURPOSE:To prevent the sticking of a display screen and to prolong the life by automatically adjusting the brightness of the screen so that the same screen display is not displayed continuously with high brightness when unnecessary. CONSTITUTION:The display control system 1 consists of a display control part 3 which sends display information and a brightness control signal to the display screen 6, a display access part 4 which sends display information from an application program 5 or keyboard 7 to the display control part 3, and a display timer 2 which checks the continuous display time of the same screen. When the display information from the display access part 4 is interrupted, the display timer 2 begins to clock the time and when a prescribed time is clocked, the display control part 3 sends the control signal to decrease the brightness of the display screen 6. When new display information is sent, the display timer 2 is reset and the display screen 6 is put back to its original brightness.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display display control system, and more particularly to a display display control system for preventing deterioration of a display device of a computer.

[0002]

2. Description of the Related Art On a display surface such as a cathode-ray tube, if the same place continues to emit strong light for a long time, so-called burn-in occurs, which makes it difficult to see the screen display. No measures have been taken against displaying the same content on the screen for a long time.

[0003]

Therefore, the conventional display device has a drawback in that the screen burn-in becomes severe as the years of use increase, and the displayed screen content becomes difficult to read.

An object of the present invention is to provide a display control method which prevents screen burn-in and helps increase the service life of the device.

[0005]

According to the display display control method of the present invention, the brightness of the display screen is automatically lowered when the screen content displayed on the display screen of the display device does not change for a certain period of time. The brightness of the display screen is restored when the screen contents change.

[0006]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing the functional arrangement of an embodiment of the present invention.

The display display control method 1 of the present embodiment shown in FIG. 1 uses a display display control unit 3 for sending display information and a brightness control signal to a display display screen 6, and a display from an application program 5 or a keyboard 7. It comprises a display access unit 4 for transmitting information to the display display control unit 3, and a display display timer 2 for checking the continuous display time of the same screen on the display display screen 6.

The display display control section 3 monitors the display display timer 2, and when the preset specified time is reached, the brightness of the display screen 6 is lowered by a control signal.

The display display timer 2 is reset by a reset signal issued when new display information is transmitted from the display access unit 4 to the display display control unit 3, and restarts counting from that point. There is.

The display display control unit 3 monitors the output of the display display timer 2 as well as the reset signal. If the control signal is being output when the reset signal is received, the display signal is stopped and the display display screen 6 is displayed. Restore the original brightness.

Each time the display access unit 4 receives new display information from the application program 5 or the keyboard 7, it displays the new display information.
And the screen memory is updated, and a reset signal is sent to the display display timer 2 and the display display control unit 3.

As described above, when the same screen is displayed on the display screen 6 for a long time, the brightness of the screen automatically lowers. Therefore, when the operator interrupts the operation and moves away from the front of the display device, for example. Can eliminate the waste of keeping displaying on the screen with high brightness. When the operation is restarted and the cursor is moved to input from the keyboard 7, or when the application program 5 instructs to change the screen information, the screen returns to the original brightness, and normal operation is performed. You can

[0014]

As described above, according to the display control method of the present invention, the brightness of the screen of the display device is automatically adjusted to display the same screen information with high brightness when unnecessary. The effect of preventing burn-in of the display screen and improving the service life without continuing.

[Brief description of drawings]

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

[Explanation of symbols]

 1 Display Display Control Method 2 Display Display Timer 3 Display Display Control Unit 4 Display Access Unit 5 Application Program 6 Display Display Screen 7 Keyboard

Claims (1)

[Claims] 1. When the screen content displayed on the display screen of the display device does not change for a certain period of time, the brightness of the display screen is automatically lowered, and when the screen content changes, the brightness of the display screen is changed. A display control method that restores brightness to the original level.