JPH0326854B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an information input device with a display device.

(Prior Art) In general, an information input device with a display device has a transparent coordinate input device disposed on the surface of the display device, and when a point on the transparent coordinate input device is indicated with an input pen, the coordinate information is displayed as a coordinate value. The detection and calculation means detects and calculates the result and outputs it to the display device, and a bright spot is displayed on the display device at a position corresponding to the point. Visually, a bright spot is displayed on the display device at a position directly below the position on the transparent coordinate input device indicated by the input pen.

(Problem to be Solved by the Invention) However, in order for the position indicated by the input pen on the transparent coordinate input device to match the position of the bright spot displayed on the display device, it is necessary to The coordinate input device must be matched and combined. Therefore, when the resolution of a transparent coordinate input device is, for example, 0.1 mm, it is extremely difficult to combine the transparent coordinate input device with a display device, which poses a major manufacturing problem.

(Means for Solving the Problems) In order to solve the above problems, the present invention includes a display device, a transparent coordinate input device disposed on the surface of the display device, and coordinate information from the transparent coordinate input device. In an information input device with a display device, the information input device includes a coordinate value detection/calculation means that detects, calculates, and outputs coordinate values to the display device. a correction amount setting means for setting a correction amount for correcting a positional deviation; a reading means for reading out the correction amount set by the correction amount setting means; and a correction amount read by the reading means. and coordinate information correction means for correcting the coordinate information based on the correction amount stored in the storage means.

(Operation) First, a certain position is indicated on the transparent coordinate input device. The transparent coordinate input device outputs coordinate information corresponding to the designated position to the coordinate value detection/calculation means. The coordinate value detection/calculation means detects and calculates the coordinate information and outputs it to a display device. Based on the output, the display device displays pixels.

At this time, if the position of the coordinates input into the transparent coordinate input device and the position of the pixel displayed on the display device do not match, a correction amount for correcting the deviation is set by the correction amount setting means. death,
The correction amount is read out via the reading means, and the correction amount is stored in the storage means as coordinate correction information.

Next, a certain position is again indicated on the transparent coordinate input device. The coordinate information corresponding to the position is detected and calculated by the coordinate value detection/calculation means as described above, corrected by the coordinate information correction means based on the coordinate correction information, and then displayed on the display device. Output. The display device will display pixels at the corrected positions.

By repeating this operation, it is possible to eliminate the deviation between the position instructed by the transparent coordinate input device and the position of the pixel displayed on the display device.

(Embodiment) FIG. 1 is a block diagram showing an embodiment of the present invention, in which a transparent coordinate input device 1 is placed on the top surface of a display device 2. As shown in FIG. An operator operates the transparent coordinate input device 1 using an input pen 5 driven by an input pen drive circuit 4 controlled by an arithmetic control section 3.
Indicates a certain coordinate position. All X-axis sense lines and all Y-axis sense lines of the transparent coordinate input device 1 are scanned by a scanning circuit 6 controlled by the arithmetic control section 3, and the results (coordinate information) are output to the arithmetic control section 3. The arithmetic control unit 3 includes a CPU 7, a memory 8, an I/
The display device 2 calculates the coordinates specified by the input pen 5 and sends the data signal of the coordinates to the display device control circuit 10. A bright spot corresponding to the position of the transparent coordinate input device 1 indicated by is displayed. At this time, if the combined positions of the display device 1 and the transparent coordinate input device 2 do not match,
A deviation occurs between the bright spot on the display device 1 and the designated coordinates. In this case, the operator uses the dip switch 11 to make corrections for alignment.

FIG. 2 is a diagram showing an example of a dip switch, and the dip switch 11 has a correction value set in advance as will be described later.

8 terminals 12a to 12h of deep switch 11
is divided into four terminals 12a to 12d for X-axis correction and four terminals 12e to 12h for Y-axis correction. Each of the terminals 12a to 12h of the deep switch 11 has two states: an ON state and an OFF state. From this, it can be expressed in binary notation with "1" when ON and "0" when OFF. Using this, eight bright points 0 to 7 are set at each of the three terminals 12b to 12d and 12f to 12h for X-axis correction and Y-axis correction. Remaining 1 terminal 1 each
10 correction when 2a and 12e are switched “ON”,
Set for − correction when the switch is “OFF”. As a result, the X-axis side correction value and the Y-axis side correction value can be selected from 15 types of 0 to ±7 bright points, respectively.

If the operator uses the input pen to indicate a certain position on the transparent coordinate input device, and a bright spot is displayed at a shifted position on the display, the operator uses the depth switch mentioned above to specify the position on the X-axis and Y-axis. Set the correction amount, then turn the power back on or reset the arithmetic control unit to read the correction setting amount of the deep switch into the memory through the CPU.
Calculate the corrected coordinates. When a position is designated again with the input pen, the corrected bright spot is displayed on the display device. This operation is repeated until there is no misalignment between the input pen indicated position and the bright spot display position. In this embodiment, a dip switch is used as the correction amount setting means, but it may be configured such that input is input to the arithmetic control section through a short-circuit terminal, etc.
Other means can also be used.

(Effects of the Invention) As explained above, the present invention provides one input device for correcting positional deviation between the display device and the transparent coordinate input device disposed on the surface thereof on the circuit. The advantage is that positional deviations can be easily corrected, and therefore, the combination of the display device and the transparent coordinate input device does not pose a major problem in manufacturing the device. Furthermore, it has the advantage that it can be used in other information input devices that require correction of the position of a bright spot displayed on a display device.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the invention.
FIG. 2 is a diagram showing an example of a deep switch. 1...Transparent coordinate input device, 2...Display device, 3
...Arithmetic control unit, 4...Input pen drive circuit, 5...
...Input pen, 6...Scanning circuit, 7...CPU, 8
...Memory, 9...I/O, 10...Display device control circuit, 11...Deep switch.

Claims (1)

[Claims] 1 Consists of a display device, a transparent coordinate input device disposed on the surface of the display device, and coordinate value detection/calculation means for detecting and calculating coordinate information from the transparent coordinate input device and outputting it to the display device. In an information input device with a display device, a correction amount setting means for setting a correction amount for correcting a deviation between a coordinate position input to the transparent coordinate input device and a pixel position displayed on the display device; reading means for reading out the correction amount set by the correction amount setting means;
It is characterized by comprising a storage means for storing the correction amount read out by the reading means, and a coordinate information correction means for correcting the coordinate information based on the correction amount stored in the storage means. Information input device with display device.