JPH01314321A - Touch panel input device - Google Patents

Abstract

PURPOSE:To easily confirm the availability of key input by providing a control part which reads image data corresponding to a detected key out of an external storage device and an arithmetic means which generates display image data for enlarging and displaying an image corresponding to the key input information according to the image data. CONSTITUTION:The arithmetic means 13 receives the image data, the image data consisting of enlarge image plane data 23 and corresponding key data 24, and the key input information and compares the corresponding key data 24 with the key input information. When there is no key input or when there is the key input and the key input information and corresponding key data 24 are different from each other, the normal image plane data 22 is sent back to a control part 12 and when the key input information and corresponding key data 24 are equal, the enlarged image data 23 is returned to the control part 12. Consequently, the image data can be generated by enlarging the key image corresponding to the key input and the touch panel input device with high operability is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a touch panel input device, and particularly to a touch panel input device suitable for improving user operability.

[Conventional technology]

The conventional touch panel input device is disclosed in Japanese Patent Application Laid-Open No. 60-1247.
As described in Japanese Patent No. 24, the screen display of the key input area changes color for a predetermined period of time in response to a key operation to notify the user of the effectiveness of the key operation.

[Problem to be solved by the invention]

In the above-mentioned conventional technology, no consideration was given to the fact that the size of the keys displayed on the screen may be equal to or smaller than the size of the finger of the person operating the key. That is,
The conventional method of informing the validity of a key input by changing the color of the key image has a problem in that the pressed key image is hidden by the operator's finger, making it difficult to confirm the validity of the key input.

An object of the present invention is to solve the above problems and provide a touch panel input device with high key input operability.

[Means to solve the problem]

The touch panel input device of the present invention includes an external storage device that stores image data, an image display device that displays the image data, and a transparent matrix-like key input device that is placed over the screen of the image display device. This is applied to a touch panel input device equipped with a control unit that reads image data from an external storage device and detects touch input from a matrix key input device. The present invention is characterized in that it is provided with a calculation means that is stored in a storage device and creates, from this image data and key input information, key input image data for enlarging and displaying a key image corresponding to a key input.

[For production]

According to the present invention, the calculation means receives image data consisting of normal screen data, enlarged screen data, and corresponding key data and key input information from the control section, and compares the corresponding key data and the key input information.

If there is no key input here, or if there is a key input but the key input information and the corresponding key data are different, the normal screen data is returned to the control unit, and if the key input information and the corresponding key data are the same, it is enlarged. The image data is returned to the control unit, thereby making it possible to create image data in which the key image corresponding to the key input is enlarged.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a touch panel input device according to the present invention. In FIG. 1, 11 is an external storage device in which image data is stored, 12 is a control unit, and 13 is an external storage device in which image data is stored.
14 is a color CRT display, 15 is a CR7 display memory, and 16 is a matrix key input device.

FIG. 2 is a diagram showing details of the arithmetic unit 13. In FIG. 2, 25 and 26 indicate registers, image data is set in the register 25, and key input information is set in the register 26. Further, 21 is an image data table, and the image data table 21 is the normal image data 22.
, enlarged image data 23 and corresponding key data 24.

Next, a case will be described in which a normal screen as shown in FIG. 3 is displayed on the color CRT display 14. Control part 1
2 sets the initial value (for example, all "0") in the register 26, and also retrieves the image data consisting of the normal image data 22, enlarged image data 23, and corresponding key data 24 from the external storage device 11. Read and set in the image data table 21. The arithmetic device 13 sequentially reads image data from the image data table 21 into the register 25 one set at a time, and compares the contents of the corresponding key data 24 and the register 26 .

Here, since the initial value is set in the register 26, the AND condition of the AND circuit 27 is satisfied, and the image data stored in the image data table 21 is passed through the normal image data selection control section 12 to be used for CR7 display. memory 15
By writing in , the normal screen, that is, the screen before key input is displayed on the color CRT display 14.

Next, a case will be described in which the enlarged screen shown in FIG. 4 is displayed on the color CRT display 14.

When a point on the matrix key input device 16 is touched by the user 41, the control unit 12 determines which key has been touched, sets the key input information in the register 26, and also stores the image data from the external storage device 11. It is stored in the read image data table 21.

The arithmetic unit 13 reads the image data from the image data table 21 into the register 25, compares the key input information set in the register 26 with the corresponding key data of the image data, and only if they match, the AND condition of the AND circuit 28 is satisfied. If the result is established, the enlarged image data 23 is sent to the selection control section 12. By rewriting the CR7 display memory 15 for a certain period of time, the control section 12 displays an enlarged screen, that is, the surface after the key input, on the color CRT display 14 for a certain period of time.

According to this embodiment, even if the screen display of the touched key is hidden by the finger touching the key and it is difficult for the user to confirm the validity of the key due to the discoloration of the key, the touched key can be displayed. Displaying the keys larger than the finger has the effect of making it easier for the user to confirm the validity of the key input.

〔Effect of the invention〕

According to the present invention, since the key image corresponding to the input key can be enlarged, the user can input the key even when the size of the key displayed on the screen is smaller than the size of the operating finger. This has the effect of making it easy to confirm the effectiveness of the method.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a block diagram showing the logic of the arithmetic unit shown in FIG. 1, and FIG. 3 is a diagram showing the screen state of the normal screen before key input. FIG. 4 is a diagram showing the screen state of the enlarged screen after key input. 11... External storage device, 12... Control unit, 13...
・Arithmetic unit, 14...Color CRT display, 1
5... CRT display memory, 16... Matrix key input device, 21... Image data table, 22...
...Normal image data, 23...Enlarged image data, 24
...Corresponding key data, 25...Register, 26...
-Register, 41...User. Figure 1 Figure 2 Figure 31

Claims (1)

[Claims] 1. An external storage device that stores image data, an image display device that displays image data, a transparent matrix-like key input device that is placed over the screen of the image display device, and a touch from the key input device. In a touch panel input device comprising a control unit that detects an input and reads image data corresponding to the detected key from an external storage device, the external storage device stores image data including enlarged image data for enlarging and displaying each key. The control device reads enlarged image data corresponding to the key input information from the external storage device using the control device, and further enlarges the image corresponding to the key input information based on the read image data. A touch panel input device comprising a calculation means for creating display image data to be displayed.