JPH08286646A - Dry eye prevention circuit for display device - Google Patents

Abstract

PURPOSE: To prevent an dry eye without reducing workability. CONSTITUTION: A video signal generating part 2 generates a video signal 13 associated with scintillation to an operator 6 in response to a control signal 13 outputted from a timer part 3 at regular time intervals. A video signal synthesizing part 4, when the control signal 13 is inputted to the same, synthesizes a video signal 11 from a computer device 1 and the video signal 12 from the video signal generating part 2 and outputs the synthesized signal to a display device 5. The display device 5 displays the video signal synthesized by the video signal synthesizing part 4 every time the control signal is outputted from the timer part 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dry eye prevention circuit for a display device, and more particularly to a word processor and a CAD (Com).
The present invention relates to a display device that displays computer graphics, such as computer-aided design).

[0002]

2. Description of the Related Art In a computer system such as a word processor and CAD, an operator inputs character information and graphic information. The man-machine interface between the operator and the computer system is realized by the operator inputting character information or graphic information while gazing at the character information or graphic information displayed on the display device.

In this case, if the operator continues to gaze at the display screen of the display device with a small amount of change in the displayed information for a long time, the visual stimulus is not transmitted to the brain, so that the number of blinks decreases and tears occur. If the amount is extremely decreased, the cornea becomes deficient in oxygen, and the operator suffers from dry eye.

Although the dry eye has large and small differences, if the operator continues to pay attention to the display screen of the display device of the computer, the operator is almost always affected.

Conventionally, in the display device, no measures have been taken to prevent the operator from developing dry eye. Therefore, if the operator himself watches the display screen of the display device for a certain time, We are taking measures such as interrupting work and resting our eyes.

[0006]

In the above-mentioned conventional display device, since the operator pays attention to the character information and the graphic information when inputting the character information and the graphic information, the operator operates the character information and the graphic information. If there is only a small amount of change such as, the change of the display screen is also small, and it is impossible to prevent the operator from developing dry eye.

However, in a computer system such as a word processor or CAD for inputting character information or graphic information using a display device, when the display of the screen is significantly changed, the operator concentrates on inputting the character information or graphic information. It is not possible to do so, and there is a concern that work efficiency will decrease.

On the other hand, one of the causes of developing dry eye is that the operator is devoted to inputting character information and graphic information, so that he gazes at a part of the display screen of the display device. In other words, preventing the operator from developing dry eye and improving the work efficiency of the work using the display device are contradictory events.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to provide a dry eye prevention circuit for a display device capable of preventing dry eyes without lowering work efficiency.

[0010]

In a dry eye prevention circuit for a display device according to the present invention, display information displayed on the display screen is provided with specific display information whose content greatly changes with respect to the display information at predetermined time intervals. It is provided with a means for combining and displaying.

[0011]

In the display device, a specific image for giving the blinking timing to the operator is displayed on the display screen at regular intervals. By making the habit of blinking when the specific image is displayed on the display screen, the operator can prevent the onset of dry eye by blinking at regular intervals.

This is realized by synthesizing a video signal output from the computer system with a video signal displaying an image pattern reminiscent of the blink every time the operator is prompted to blink.

The image pattern reminiscent of blinks may be a specific pattern whose contents greatly change with respect to the display information displayed on the display screen. For example, a black pattern reminiscent of the eyelids from the upper and lower ends of the display screen. The curtain-shaped pattern is extended to the center of the display screen to temporarily turn the entire screen black, and then the curtain-shaped pattern is retracted from the center of the display screen toward the upper and lower ends of the display screen, respectively. Patterns such as returning to information are possible.

Further, the human brain has a function of conditioned reflex, and it is possible to unconsciously perform a specific action by conditioned or habitually performing a certain action under a certain condition. You can Therefore, as mentioned above, if it is customary to perform blinking by conditioned reflex when an image pattern reminiscent of blinking is displayed on the display screen, it is possible to prevent the amount of tears from extremely decreasing and to prevent the cornea from oxygenating. It is possible to prevent a deficiency state and prevent an operator from developing dry eye.

[0015]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In the figure, the video signal 11 output from the computer device 1 is output to the display device 5 via the video signal combining unit 4.

The video signal generator 2 responds to a control signal 13 output from the timer 3 at preset constant intervals to generate a video signal 12 of an image pattern that reminds the operator 6 of blinking. The video signal generator 2 outputs the generated video signal 12 to the video signal synthesizer 4.

Normally, the video signal synthesizing section 4 outputs the video signal 11 from the computer apparatus 1 to the display apparatus 5 as it is. When the control signal 13 is inputted from the timer section 3, the video signal 11 from the computer apparatus 1 is inputted. And the video signal 12 from the video signal generator 2 are combined and output to the display device 5.

The display device 5 includes a video signal synthesizing section 4
Display the video signal 14 from. Normally, the display device 5 displays the video signal 11 from the computer device 1 as it is, and displays the video signal combined by the video signal combining unit 4 when the control signal 13 is output from the timer unit 3. Therefore, the display device 5 displays an image pattern that reminds the operator 6 of blinks at regular intervals.

If the operator 6 who works by paying attention to the display screen of the display device 5 makes a habit of making a blink every time an image pattern reminiscent of a blink is displayed, the blink is made by the conditional reflection at regular intervals. It is possible to prevent the onset of dry eye while minimizing the decrease in work efficiency for the computer device 1.

FIG. 2 is a diagram showing an example of an image pattern generated by the video signal generator 2. FIG. 2A is a diagram showing an image pattern for closing the eyelids, and FIG. 2B is a diagram showing an image pattern for opening the eyelids.

In these figures, the display device 5
At the upper and lower ends of the display screen 5a, black curtain-shaped eyelid displays 7a and 7b are displayed at regular intervals. These eyelid displays 7a and 7b are directed from the upper and lower ends of the display screen 5a toward the central portion, that is, Eyelid display 7a with arrow A
The eyelid display 7b is extended in the direction of arrow B, respectively. In this case, the eyelid displays 7a and 7b are the display screen 5
It is realized by overwriting the display contents of a.

When the eyelid displays 7a and 7b come into contact with each other at the central portion of the display screen 5a and the entire screen of the display screen 5a becomes black, that is, when the display in which the eyelids are closed is performed, the eyelid displays 8a and 8b are displayed on the display screen 5a. The eyelid display 8a is retracted in the direction of arrow C and the eyelid display 8b is retracted in the direction of arrow D from the central portion toward the upper end and the lower end, respectively, to display the state where the eyelids are opened.

As a result, the eyelid displays 7a, 7b, 8
a and 8b are displayed on the display screen 5a from a state where the eyelids are closed to a state where the eyelids are opened, and if the operator habitually closes the eyelids according to this display, the occurrence of dry eye of the operator can be prevented. it can.

As described above, the video signal generating section is arranged at regular intervals when the timer section 3 detects a specific pattern in which the display information displayed on the display screen 5a changes greatly with respect to the display information at predetermined time intervals. 2 and the video signal and the image pattern from the computer apparatus 1 are combined by the video signal composition section 4 and displayed on the display unit 5, so that the operator 6 can concentrate on the operation of the computer apparatus 1 while performing the conditional reflection. Since the blinking can be performed by, the timing of the blinking can be given to the operator 6 without lowering the work efficiency.

Therefore, since the operator 6 repeats blinking as a conditional reflection at regular intervals, it is possible to suppress a decrease in the amount of tears and prevent dry eye. Therefore, the dry eye can be prevented without lowering the working efficiency.

[0027]

As described above, according to the present invention, the display information displayed on the display screen is combined with the specific display information whose content largely changes with respect to the display information and displayed every predetermined time. As a result, there is an effect that dry eyes can be prevented without lowering work efficiency.

[Brief description of drawings]

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

FIG. 2A is a diagram showing an image pattern for closing the eyelids, and FIG. 2B is a diagram showing an image pattern for opening the eyelids.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Computer device 2 Video signal generating unit 3 Timer unit 4 Video signal synthesizing unit 5 Display device 5a Display screen 7a, 7b, 8a, 8b Eyelid display

Claims (2)

[Claims] 1. A dry eye prevention circuit of a display device for displaying display information from a higher-level device on a display screen, the contents of the display information being displayed on the display screen being greatly changed with respect to the display information. A dry eye prevention circuit having means for combining and displaying specific display information at predetermined time intervals. 2. The specific display information includes a first image pattern that is displayed at the upper and lower ends of the display screen and is then enlarged toward the central portion of the display screen, and up to the central portion of the display screen. 2. The dry eye prevention circuit according to claim 1, wherein the enlarged and displayed first image pattern comprises a second image pattern which is reduced and displayed toward an upper end and a lower end of the display screen.