JPH0689143A - Touch panel inputting device - Google Patents

Abstract

PURPOSE:To reduce the interval of optical scanning lines, and to reduce the range of an area to be touched by preparing one touch coordinate by an arithmetic operation for searching the mean value or weighted mean value of the plural touch coordinates. CONSTITUTION:A touch coordinate transmitter 3 detects the plural touch coordinates from optical scanning lines 2C and 2L, and transmits them to an outside. A coordinate arithmetic unit 5 searches the mean value of the plural touch coordinates detected by the touch coordinate transmitter 3, and uses it as one touch coordinate. At that time touching a touch panel 1 with operators finger, the nine points of each coordinate of the plural optical scanning lines 2C and 2L are detected by the touch coordinate transmitter 3, and transmitted to a computer 4. The coordinates of the nine points are (CA, LX), (CA, I,Y), (CA, LZ), (CB, LX), (CB, LY), (CB, LZ), (CC, LX), (CC, LY), and (CC, LZ). Then, the coordinate arithmetic unit 5 prepares a mean coordinate (CB, LY), and outputs it to the computer 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch panel input device using a touch panel in which a plurality of optical scanning lines are arranged in the vertical and horizontal directions.

[0002]

2. Description of the Related Art FIG. 6 is a block diagram showing a conventional touch panel input device. In FIG. 6, 1 is a touch panel such as a CRT tube surface, 2 _C is a plurality of vertical optical scanning lines, 2 _L is a horizontal direction. Reference numeral 6 denotes a touch coordinate sending device for sending touch coordinates from the optical scan lines 2 _C and 2 _L to an external device such as a computer.

Next, the operation will be described. 3 is a configuration diagram showing an image viewed from the front when touch input is performed on the touch panel 1 with a human finger 7 or the like, FIG. 4 is a configuration diagram viewed from above, and FIG. 5 is viewed from the side. It is a block diagram.
Now, when touch input is performed with the finger 7, the vertical optical scanning line 2 _c
Coordinate CA, CB, CC and lateral coordinate LX of the light scanning line 2 _L, LY, to a LZ, 2 first optical scanning lines _C, 2 _L of
The coordinates (CB, LX) touching are recognized as touch coordinates. The touch coordinates are sent from the coordinate sending device 6 to an external device. Therefore, it is necessary to set a sufficiently large distance between the touch targets, that is, the distance between the optical scanning lines 2 _C and 2 _L. The size of one touch input sensing range is determined in consideration of the size of the human finger 7, and a large difference also occurs depending on the inclination of the finger 7 when touching the optical scanning lines 2 _C and 2 _L. Therefore, the size is determined more ergonomically.

[0004]

Since the conventional touch panel input device is constructed as described above, the coordinates of the first touch-input position are sent to the external device. The size is ergonomically determined, and there is a problem that the touch target range cannot be reduced. As a technique related to the present invention, there is one disclosed in Japanese Patent Laid-Open No. 3-212720.

The present invention has been made in order to solve the above problems, and an object thereof is to obtain a touch panel input device capable of sufficiently reducing an individual touch target range.

[0006]

According to a first aspect of the present invention, there is provided a touch panel input device including a detecting means for detecting all coordinates touching a plurality of optical scanning lines, and an average value of a plurality of detected touch coordinates. Alternatively, a weighted average value is obtained, and a coordinate calculation device that uses it as one coordinate is provided.

According to a second aspect of the present invention, a touch panel input device is provided with a touch coordinate detecting / calculating device for obtaining an average value or a weighted average value of a plurality of touch coordinates and setting it as one coordinate.

[0008]

In the touch panel input device according to the first aspect of the present invention, since a single touch coordinate is generated based on a plurality of touch input coordinates, the range of the touch target can be made small and can be brought close to each other. . In addition, the calculation is simple and the number of erroneous operation inputs can be reduced.

In the touch panel input device according to the second aspect of the present invention, a calculation for obtaining a single coordinate from a plurality of touch input coordinates is performed within the touch panel.

[0010]

【Example】

Example 1. Embodiment 1 of the present invention will be described below with reference to the drawings. In FIG. 1, parts corresponding to those in FIG. 6 are assigned the same reference numerals and explanations thereof are omitted. In FIG. 1, reference numeral 3 is a touch coordinate sending device as a detecting means for detecting a plurality of touch coordinates from the optical scanning lines 2 _C and 2 _L and sending them to the outside. Reference numeral 5 is a coordinate calculation device that obtains an average value of a plurality of touch coordinates detected by the touch coordinate transmission device 3 and uses it as one touch coordinate, and reference numeral 4 is a computer including the coordinate calculation device 5.

Next, the operation will be described. Now,
As shown in FIG. 5, it is assumed that the operator touches the touch panel 1 with the finger 7. At this time, the coordinates (the following 9 points) of the plurality of optical scanning lines 2 _C and 2 _L are detected by the touch coordinate sending device 3 and sent to the computer 4. The coordinates of 9 points are (CA, LX), (CA, LY), (CA, L
Z), (CB, LX), (CB, LY), (CB, L
Z), (CC, LX), (CC, LY), (CC, L
Z). The coordinate calculation device 5 generates the average coordinates (CB, LY) of these 9 points and outputs them to the internal processing of the computer 4.

Example 2. In the first embodiment, the touch coordinate sending device 3 as the detecting means and the coordinate calculating device 5 are separate bodies, but they are combined to form the touch coordinate detecting calculating device 8 as shown in FIG. It may be provided inside.

Embodiment 3. In the first and second embodiments, the average value is used as the arithmetic operation for generating a single coordinate.
It may be a calculation for obtaining a weighted average value. That is, whether to use the average value or the weighted average value may be determined depending on, for example, the state of the curved surface of the touch panel, and one touch panel may be provided with an area for obtaining the average value and an area for obtaining the weighted average value. Good. Further, the number of input coordinates from the touch panel 1 is not limited to nine and may be plural.

[0014]

As described above, according to the first aspect of the present invention, since one touch coordinate is generated by an operation for obtaining an average value or a weighted average value of a plurality of touch coordinates, the optical scanning is performed. The range of the touch target area can be reduced by reducing the line interval. As a result, when used in combination with a display device such as a CRT, the touch target range can be made finer, erroneous operation input can be reduced, and calculations can be easily performed.

Further, according to the invention of claim 2, since the touch coordinate calculating device for calculating one touch coordinate from the plurality of touch coordinates is provided in the touch panel, the configuration is simplified in addition to the above effect. There is an effect that can be.

[Brief description of drawings]

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

FIG. 2 is a configuration diagram showing a second embodiment of the present invention.

FIG. 3 is a configuration diagram of an optical scanning line and touch input viewed from the front.

FIG. 4 is a configuration diagram of an optical scanning line and touch input viewed from above.

FIG. 5 is a configuration diagram of an optical scanning line and a touch input viewed from the side.

FIG. 6 is a configuration diagram showing a conventional touch panel input device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Touch panel 2 _C , 2 _L optical scanning line 3 Touch coordinate transmission device (detection means) 5 Coordinate calculation device 8 Touch coordinate detection calculation device

Claims (2)

[Claims] 1. A touch panel input device using a touch panel in which a plurality of optical scanning lines are arranged in a vertical direction and a horizontal direction, respectively, and a detection means for detecting a plurality of touch coordinates by touch input, and a detection means for detecting the touch coordinates. A touch panel input device comprising: a coordinate calculation device that calculates an average value or a weighted average value of the plurality of touch coordinates, and uses the calculation result as a single coordinate. 2. In a touch panel input device using a touch panel in which a plurality of optical scanning lines are arranged in each of a vertical direction and a horizontal direction, an average value or a weighted average value of a plurality of touch coordinates by touch input is calculated, A touch panel input device comprising: a touch coordinate detection calculation device provided on the touch panel, the calculation result being a single coordinate.