JPH06266502A - Screen input device - Google Patents

Abstract

(57) [Summary] [Purpose] To give the operator a feeling of operation when inputting on the screen input device. [Structure] By a link mechanism including four arms 3,
A transparent plate 2 is supported on the front surface of the display screen of the display 1 with a predetermined gap so as to be movable in the direction of the display screen while maintaining the parallel state to the display screen. In addition, an input detection switch 5 that operates by moving the transparent plate 2 in the display screen direction is provided. When the user touches the transparent plate 2 with a finger at the time of screen input, the entire transparent plate 2 moves toward the display screen and the input detection switch 5 operates. This gives the operator a feeling of operation. The input position is detected by the input position detection switch 6 arranged at the peripheral position above the transparent plate 2 in the front case 7, and the operation of the input detection switch 5 causes the screen display operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen input device for inputting by touching a display screen with a finger.

[0002]

2. Description of the Related Art In a conventional screen input device, as shown in FIG. 3, a display 1 having a display screen on its front surface is arranged on a rear case 4, and a display case in a front case 7 is provided around the display screen. An input position detection switch 6 for detecting the position on the display screen where the finger touches is arranged, and when the finger touches the display screen of the display unit 1, the switch 6 detects the touched position, and this touch position, That is, it is configured to perform a screen display operation at the input position.

In such a screen input device, as shown in the figure, a transparent plate 2 fixed to the case or the display 1 is provided on the front surface of the display screen, and there is no transparent plate 2 at all. There were things.

[0004]

However, in the conventional screen input device, since the display screen is only pressed by the finger directly or through the transparent plate 2 at the time of input, the input cannot be confirmed by the tactile sense. For this reason, the display part pressed on the screen is made to react so that the input person can visually confirm it, and there is a drawback that it is difficult to confirm the input.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a screen input device which gives an input person a feeling of input operation.

[0006]

The present invention provides a screen input device including a display device having a display screen and an input position detection switch for detecting a position pressed by a finger on the display screen of the display device, A transparent plate is placed on the front of the display screen with a predetermined gap, and this transparent plate is supported by a link mechanism so as to be movable in the display screen direction while maintaining the parallel state to the display screen. Is equipped with an input detection switch that is activated by moving to
When the input person looks at the screen display and presses the display portion he / she wants to input with his / her finger, the entire transparent plate moves toward the display screen, whereby the input detection switch is actuated to detect the screen input.

As described above, according to the present invention, since the entire transparent plate moves toward the display screen at the time of screen input, it is possible to give the input person a sufficient operation feeling which cannot be obtained by the conventional screen input. You will be able to confirm the input.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing an embodiment of a screen input device according to the present invention. This screen input device normally has a display 1 for performing a predetermined display on its front display screen and a screen input device. Input position detection switch 6 for detecting the position on the display screen where the finger of the person who wants to input touches
Including and The input position detection switch 6 is an IR switch composed of a phototransistor and a photodiode, and is arranged above the transparent plate 2 in the front case 7 and around the display screen.

In this embodiment, a transparent plate 2 is arranged on the front surface of the display screen of the display 1 with a predetermined gap, and the transparent plate 2 is maintained in parallel with the display screen by a link mechanism including four arms 3. The transparent plate 2 is supported so that it can move in the direction of the display screen, and any part of the transparent plate 2 can be pressed with a finger
Is configured to move toward the display screen without tilting with respect to the display screen.

To be more specific with reference to the perspective view of FIG. 2, the transparent plate 2 is fixed to the frame plate 10, and two arms 3 are respectively provided on opposite sides of the frame plate 10 in the longitudinal direction. It is mounted rotatably by 11 and these 4
The other end of one arm 3 is rotatably attached to the rear case 4 by a shaft 12 to form a link mechanism. On the other hand, the frame plates 1 on both sides to which the above arms of the rear case 4 are attached
Input detection switches 5 for detecting the screen input by the finger of the input person are arranged at positions where they touch 0, and when the transparent plate 2 is not pushed, the elastic force of these switches 5 pushes the frame plate 10 upward to make it transparent. The plate 2 and the display screen of the display 1 are held in parallel by the link mechanism with a predetermined gap. Of course, the frame plate 10 is biased in a direction away from the display screen by using an elastic means such as an appropriate spring, and the transparent plate 2 and the display screen of the display 1 are held in a parallel state with a predetermined gap by the link mechanism. It may be configured to.

In the above structure, the operator inputs the transparent plate 2 with his / her finger.
When is pressed, the transparent plate 2 is supported by the rear case 4 via the four arms 3, so that the arms 3 rotate about the shaft 12 on the rear case 4 side, and the transparent plate 2 moves between the arms 3. Performs parallel movement along a circle whose radius is the distance between the axis centers of. Since the parallel movement of the transparent plate 2 is performed against the elastic force of the two switches 5, the parallel movement of the transparent plate 2 with the frame plate 10 in the display screen direction causes
The two input detection switches 5 are pressed to operate. That is, no matter which part of the transparent plate 2 is pressed by the movement of the link mechanism, the transparent plate 2 presses the input detection switch 5 without tilting, so that these input switches 5 operate reliably.

Although the link mechanism including four arms is used in the above embodiment, the transparent plate 2 is held parallel to the display screen with a predetermined gap, and the transparent plate 2 is parallel to the display screen direction. Any link mechanism may be used as long as it is configured to be moved, and is not limited to the configuration of the embodiment. Needless to say, the configuration and shape of the device and the parts and members used are not limited to those of the embodiment.

[0013]

As described above, according to the present invention,
When the transparent plate 2 arranged with a predetermined gap on the front surface of the display screen is pushed by the finger of the inputting person who inputs the screen, the transparent mechanism 2 moves in parallel to the display screen direction by the link mechanism, so that it is clear to the inputting person at the time of inputting. There is a remarkable effect that the input can be confirmed immediately without giving the user a visual confirmation.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of a screen input device according to the present invention.

FIG. 2 is a schematic perspective view of the screen input device shown in FIG. 1 from which a front case and an input position detection switch are removed.

FIG. 3 is a schematic sectional view showing an example of a conventional screen input device.

Claims (1)

[Claims] 1. A screen input device including a display device having a display screen and an input position detection switch for detecting a contact position on the display screen, wherein a transparent plate is arranged in front of the display screen with a predetermined gap. A link mechanism that supports the transparent plate so as to be movable in the display screen direction while maintaining the parallel state to the display screen; and an input detection switch that is operated by moving the transparent plate in the display screen direction. A screen input device, comprising: a screen input device, wherein the entire transparent plate is moved toward the display screen to operate the input detection switch when inputting on the display screen.