JPH1153112A - Image display input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the image display input device which reduces the parallax between an image display point and an input operation point on a touch panel and enables pleasant operation by making the gap between the display surface of an image display device and the touch panel surface variable associatively with the operation of an image reader. SOLUTION: The image reader 15 scans and reads a document 17 placed on the touch panel 17 by moving between the touch panel 14 and liquid crystal display device 1 in an X direction along support metal fittings 16 and in a Y direction along the straight line A. When the image reader 15 is not in operation, the liquid crystal display device 1 is moved up so that the gap L between the liquid crystal display device 1 and touch panel 14 becomes minimum. Namely, movable metal fittings 5 also move by the rotation of a motor and the movement of the movable metal fittings 5 allows a slide pin 3 inserted into a bent groove bored in the movable metal fittings 5 to move up and down, so that the liquid crystal display device 1 moves up and down.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing device such as a personal computer, and more particularly to an image display input device in which a display device and a touch panel are integrated.

[0002]

2. Description of the Related Art There are already many information processing devices such as personal computers having an image display input device in which a display device, a touch panel and an image reading device are integrated.
In such an image display input device, when a finger or a pen touches a menu or an icon displayed on the display device, a coordinate touched on the touch panel is detected, and information according to an instruction corresponding to the touched menu or the icon is detected. Processing is performed. Further, it is possible to read an image such as a photograph drawn on a document placed on the touch panel surface and execute image processing such as editing on a personal computer.

FIGS. 3 to 5 show the configuration of such a conventional image display / input device. FIG. 3A is a cross-sectional view in the X direction of a conventional image display input device. FIG. 3B is a sectional view in the Y direction of a conventional image display input device. FIG.
FIG. 4 is a schematic diagram for explaining a case where there is no parallax in the image display input device shown in FIG. 3 because the display surface is viewed from a vertical direction. FIG. 5 is a schematic diagram for explaining a case where parallax occurs because the display surface is viewed from an oblique direction.

In FIG. 3, reference numeral 101 denotes a liquid crystal display,
02 is an image reading device such as a CCD, 103 is a transparent touch panel, 104 is a document for reading an image, 105 is a housing, and 106 is a support member of the image reading device 102. The liquid crystal display device 101 is fixed to the housing 105. The support member 106 is fixed to the housing 105. The image reading device 102 is slidably attached to the support member 106, and scans the document 104 by sliding along the support member 106 in the X direction. The support member 1
The original 104 is scanned while moving in the Y direction, that is, in the linear position indicated by B in FIG. Touch panel 103 is fixed to housing 105. A document 104 is placed on the surface of the touch panel 103, and the image reading device 102 reads an image of the document 104 through the touch panel 103. An effective area of the touch panel 103 is substantially the same as an image display effective area of the liquid crystal display device 101, and an operator (not shown) operates the touch panel corresponding to a position of a menu or an icon displayed on the liquid crystal display device 101. An information processing device such as a computer can be operated by operating a position on the touch panel 103 by touching or pressing.

Next, the operation of the conventional image display / input device without parallax will be described with reference to FIG. In FIG. 4A, 1
Reference numeral 08 denotes a dot on the liquid crystal display device 101, and reference numeral 109 denotes an eye of an operator who operates the image display input device. Reference numeral 107 denotes an intersection between the touch panel 103 and a line connecting the point 108 on the liquid crystal display and the eyes 109 of the operator. Reference numeral 110 denotes a point at which the point 108 corresponds on the touch panel 103. Operator (not shown)
By pressing the point 110 with a finger or the like, a signal (not shown) corresponding to the point 108 on the liquid crystal display device can be generated from the touch panel 103.

FIG. 4B is a view of the operation shown in FIG. 4A as viewed from the front of the image display device. An operator (not shown) faces the image display device to the front (the touch panel). It shows how the point 108 and the intersection 107 look when viewed at an angle (perpendicular to 103). As shown in FIG. 4B, when the operator (not shown) is viewed from the front, the point 110 and the intersection 107 do not visually shift, and the information input from the touch panel 103 is displayed on a liquid crystal display. The operation can be performed accurately without deviation from the device 101.

Next, the operation of the conventional image display / input device when there is parallax will be described with reference to FIG. In FIG. 5, FIG.
Unlike (a), the operator (not shown) uses the touch panel 10
3 is viewed at an oblique angle other than 90 degrees. In this case, the correct input operation is that the operator presses the point 110 on the touch panel surface corresponding to the point 108 on the liquid crystal display device. And the operator sees point 110
Press point 107 to press. However, intersection 10
7 is an erroneous operation because it is different from the point 110 on the touch panel. In this case, the parallax increases as the distance between the touch panel 103 and the liquid crystal display device 101 increases.

FIG. 5B is a schematic view of the operation shown in FIG. 5A as seen by an operator. An erroneous operation occurs because the position of the point 107 that the operator tries to press and the position of the point 110 on the touch panel corresponding to the point 108 are significantly different.

In FIG. 3, the gap L between the touch panel 103 and the liquid crystal display device 101 needs to be large for the image reading device 102 to move in parallel with the surface of the touch panel 103 along the support member 106.
However, as described above, this causes an erroneous operation due to parallax.

[0010]

As described above, in the prior art, the gap between the touch panel surface and the liquid crystal display surface increases due to the interposition of the image reading device, and the operator touches the touch panel obliquely. When viewed at an angle, a large parallax occurs. Therefore, when operating while viewing the liquid crystal display screen, it is difficult to perform an accurate input operation due to the parallax.

An object of the present invention is to solve input operation difficulties due to parallax.

[0012]

According to the present invention, there is provided an image display apparatus comprising: an image display device; and a touch panel disposed opposite to a surface of the image display device. And the gap between the touch panel surface and the touch panel surface can be changed in conjunction with the operation of the image reading device. With this configuration, the parallax between the image display point and the input operation point on the touch panel is reduced, and It is possible to provide an image display input device capable of performing various operations.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to a first aspect of the present invention has an image display device, and a touch panel disposed opposite to a display surface of the image display device, and displays the image on the image display device. This is an image display input device configured to be able to change the gap between the touch panel surface and the touch panel surface, and has an effect that an operator can perform an accurate operation on a coordinate input surface such as a touch panel even when viewed obliquely. Can be

According to a second aspect of the present invention, an image reading device is provided between the image display device and the touch panel, and when the image reading device is not operating, the image reading device is connected between the image display device and the touch panel. 2. The image display input device according to claim 1, wherein the gap is set to a shortest distance, and when the image reading device reads a document, the gap is controlled so as not to hinder parallel movement of the image reading device. When the image reading operation is not being performed, the gap between the image display surface and the touch panel surface is minimized, the parallax between the image display and the input operation point on the touch panel is reduced, and a comfortable operation can be performed.

(Embodiment 1) FIG. 1 is a sectional view showing the structure of an embodiment of the present invention. FIG. 1A shows the difference in the gap between the display surface and the touch panel surface in the case of the image reading operation, and FIG. 1B shows the difference in the case of not performing the image reading operation. FIG. 2 is an exploded perspective view showing the display device movable structure according to the embodiment of the present invention.

1 and 2, reference numeral 1 denotes a liquid crystal display device,
2 is a mounting bracket for the liquid crystal display device 1, 3 is a sliding pin, 4 is a fixed bracket, 5 is a movable bracket, 6 is a rack, 7 is a motor, 8 is a pinion gear, 9 is a worm gear, 10 is a transmission shaft, 11
Denotes a main body case, 12 denotes a vertical regulating pin, and 13 denotes a motor mounting plate. Reference numeral 14 denotes a touch panel, 15 denotes an image reading device such as a CCD, 16 denotes a support of the image reading device 15, and 17 denotes a document on which an image to be read is drawn.

In FIG. 1, A is an image reading device 1
Reference numeral 5 denotes a straight line position that is translated (scanned) with respect to the touch panel 14. L is a gap formed between the touch panel and the liquid crystal display device 1.

In FIG. 2, the liquid crystal display device 1 is fixed to a liquid crystal display device mounting bracket 2. The sliding pin 3 is fixed to the mounting bracket 2 by caulking or the like. The fixing bracket 4 is fixed to the main body case 11 with screws or the like. The upper and lower regulating pins 12 are fixed to the fixture 4 by caulking or the like. The movable metal fitting 5 is attached to the fixed metal fitting 4 so as to be movable by a fixing means such as an E-ring by passing the vertical regulation pin 12 through a horizontal hole. The rack 6 is fixed to the end of the movable fitting 5 with screws or the like. The motor 7 is fixed to the motor mounting plate 13 with screws or the like. The pinion gear 8 is fixed to the shaft of the motor 7 by press fitting or bonding. The worm gear 9 is the transmission shaft 1
0 is fixed to both ends.

Next, the operation will be described. During the image reading operation, the image reading device 15
A document 17 placed on the touch panel 14 is scanned by being moved in the X direction between the touch panel 14 and the liquid crystal display device 1 along the support bracket 16 and read. Further, the original 17 is scanned and read while moving in the Y direction along the straight line of A. Thus, the entire image of the document 17 is read. In this case, the gap L between the touch panel 14 and the liquid crystal display device 1 is
The distance required for the image reading device 15 to move in parallel is required.

On the other hand, when the image reading device 15 is not operating, the gap L between the touch panel 14 and the liquid crystal display device 1
It is not necessary that the image reading device 15 has a distance that allows the image reading device 15 to move in parallel. Therefore, as shown in FIG. 1B, the gap L between the liquid crystal display device 1 and the touch panel 14 is changed.
Is moved upward so that is minimized.

Next, a vertically movable structure of the liquid crystal display device 1 of FIG. 1 will be described with reference to FIG. In FIG.
When the motor 7 rotates, the rotational force is transmitted to the worm gear 9 through the pinion gear 8. When the worm gear 9 rotates, the associated rack 6 is moved. Since the rack 6 is fixed to the movable fitting 5, rotation of the motor appears as movement of the movable fitting 5. When the movable metal member 5 moves, the concave groove formed in the movable metal member 5 also moves, and the sliding pin 3 inserted in the groove moves upward or downward accordingly. Since the sliding pin 3 is fixed to the mounting bracket 2, the vertical movement of the sliding pin 3 appears as the vertical movement of the mounting bracket 2. When the mounting bracket 2 moves up and down, the liquid crystal display device 1 moves up and down together. That is, the position of the liquid crystal display device 1 moves up and down by the rotation of the motor 7.

The motor 7 is automatically driven by motor control driving means (not shown) so that the gap L in FIG. 1 satisfies the following conditions.

1) While the image reading device 15 is not operating, the gap L brings the liquid crystal display device 1 as close to the touch panel 14 as possible.

2) When the image reading device 15 operates, the gap L is determined by the image reading device 1
And a distance that can be translated.

As described above, since the gap L between the liquid crystal display device 1 and the touch panel 14 can be minimized, the above-described parallax is minimized, and erroneous operations are less likely to occur.

In the above-described embodiment, the liquid crystal display device is made movable, but the same effect can be obtained by making the touch panel movable. In short, it is important that the gap between the liquid crystal display device and the touch panel can be changed.

Although the embodiment has been described in which the display device is moved up and down by a motor in accordance with the operation state of the image reading device, it is easy for those skilled in the art to realize a structure in which the operator moves the display device up and down with a lever or the like. It is.

[0028]

As described above, the image display input device of the present invention holds the image display device in the housing so that the gap between the image display device and the touch panel can be changed, so that the operator can tilt the touch panel or the liquid crystal. An image display / input device with good operability with less erroneous input operation due to occurrence of parallax even when viewing the screen can be provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an image display input device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a display device movable structure of the image display input device according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view of a conventional image display input device.

FIG. 4 is a schematic diagram for explaining a case where there is no parallax in the conventional image display input device.

FIG. 5 is a schematic diagram for explaining a case where parallax occurs in a conventional image display input device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 liquid crystal display device 2 liquid crystal mounting bracket 3 sliding pin 4 fixing bracket 5 movable bracket 14 touch panel 15 image reading device 16 support bracket 17 manuscript

Claims (2)

[Claims] 1. An image display device, comprising: a touch panel disposed opposite to a display surface of the image display device, wherein a gap between the display surface of the image display device and the touch panel surface can be changed. Image display input device. 2. An image reading device is provided between an image display device and a touch panel. When the image reading device is not operating, a gap between the image display device and the touch panel is set to a minimum distance, and the image reading device is provided. When reading an original, the gap is controlled so as not to hinder the image reading device from moving in parallel.
The image display input device according to the above.