JPH08123606A - Tablet device - Google Patents

Abstract

PURPOSE: To provide the tablet device which is made lightweight and thin on the whole and uses amorphous magnetic wires. CONSTITUTION: The tablet device 10, equipped with the amorphous wires 16 and 19 extending in an (x) and a (y) direction, has the magnetic wires 16 and 19 fixed to the internal surface of an upper cover 12 and soldered to circuit boards 15a and 15b embedded in groove parts 12a and 12b, and 12c and 12d provided long the edges of the internal surface of the internal cover.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tablet device using an amorphous magnetic wire.

[0002]

2. Description of the Related Art Conventionally, a tablet device using an amorphous magnetic wire is constructed, for example, as shown in FIG. That is, in FIG. 5, the tablet device 1 is
For example, an X-axis tablet board provided with a plurality of amorphous magnetic wires extending in the x direction on the upper surface of a PET tablet sheet, and similarly provided with a plurality of amorphous magnetic wires extending in the y direction on the lower surface of a PET tablet sheet, for example. And a detection unit 2 formed of a Y-axis tablet board, a circuit unit 3 disposed on the side of the detection unit 2, an upper cover 4 and a lower cover 5 that cover the detection unit 2 and the circuit unit 3 from above and below. ,,.

The magnetic wire is fixed to a printed circuit board (not shown), and its end is soldered or the like to a contact portion provided on a side edge of the printed circuit board. It is electrically connected.

According to the tablet device 1 having such a configuration, the coordinate pointing pen 6 for performing AC excitation is attached to the upper cover 4.
When the magnetic wire in the x direction and the corresponding y direction is applied to the predetermined position of the detection unit 2 from above, the pulsed voltage is generated at both ends of the magnetic wire by the so-called Matuchi effect. The XY coordinates on the detection unit 2 can be designated by detecting the pulsed voltage by a detection circuit (not shown) via each printed circuit board.

[0005]

However, in such a tablet device 1, the detecting portion 2 uses the printed circuit board for fixing the magnetic wire, and therefore the detecting portion 2 itself is relatively heavy. In addition, the tablet device 1 becomes thicker, and the upper cover 4 and the lower cover 5 are stacked on the upper and lower sides of the detection unit 2, which causes a problem that the entire tablet device 1 becomes large.

In view of the above points, the present invention has as its object the provision of a tablet device using an amorphous magnetic wire, which can be made light and thin as a whole.

[0007]

According to the present invention, there is provided a tablet device comprising a plurality of amorphous magnetic wires extending in the x-direction and the y-direction, respectively.
Each magnetic wire is fixed to the inner surface of the upper cover or the lower cover, and soldered to a circuit board embedded in a groove provided along the side edge of the inner surface of the upper cover or the lower cover. It is achieved by a tablet device, characterized in that

In the tablet device according to the present invention, preferably, the groove portion is formed so as to receive an electronic component such as an IC mounted on a circuit board.

[0009]

According to the above construction, since each magnetic wire is fixed to the inner surface of the upper cover or the lower cover, the conventional printed circuit board to which the magnetic wire is fixed becomes unnecessary. Therefore, the number of parts can be reduced, the cost can be reduced, and the overall weight and thickness of the tablet device can be reduced.

Further, since each magnetic wire is soldered to the circuit board embedded in the groove provided along the side edge of the inner surface of the upper cover or the lower cover, the circuit board is It does not protrude inward from the inner surface of the upper or lower cover. Therefore, the entire tablet device can be thinned.

Further, when each magnetic wire is fixed to the inner surface of the upper cover, the tip of the coordinate pointing pen for performing AC excitation is made to be closer to the magnetic wire of the detecting portion when the coordinate is input. Therefore, the coordinate input can be performed more stably and surely.

An IC in which the groove is mounted on a circuit board.
When formed so as to be able to receive electronic components such as, a circuit for processing the voltage generated in each magnetic wire may be formed on the circuit board. . Therefore, the entire tablet device including the processing circuit can be made even thinner.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the embodiments shown in the drawings. FIG. 1 shows an embodiment of a tablet device using an amorphous magnetic wire according to the present invention. In FIG. 1, the tablet device 10 includes an upper cover 12 having an inner surface provided with a detection unit 11 including a plurality of amorphous magnetic wires extending in the x direction and a plurality of amorphous magnetic wires extending in the y direction, and the upper cover 12 The circuit board 13 is disposed so as to face the side edges of the inner surface of the upper cover 12, and the lower cover 14 is disposed so as to face the entire inner surface of the upper cover 12.

As shown in FIGS. 2 and 3, the upper cover 12 has grooves 12a, 12 along the side edges of the inner surface thereof.
It has b, 12c, and 12d. A plurality of magnetic wires 16 extending in the x direction are stretched between the wire connecting circuit boards 15a and 15b mounted in the groove portions 12a and 12b facing each other. The magnetic wire 16 is fixed to the inner surface of the upper cover 12 by a wire fixing adhesive sheet 17 attached from above the magnetic wire 16, and both ends of the magnetic wire 16 are
The contact portions formed on the wire connecting circuit boards 15a and 15b are electrically connected by soldering or the like.

Further, the groove portions 12c and 12d facing each other
Wire connection circuit boards 18a, 18 mounted inside
A plurality of magnetic wires 19 extending in the y direction are stretched between b. The magnetic wire 19 is fixed to the lower surface of the wire-fixing pressure-sensitive adhesive sheet 17 by a wire-fixing pressure-sensitive adhesive sheet 20 attached from above the magnetic wire 19, and both ends of the magnetic wire 19 are respectively attached to the wire. The contact portions formed on the connecting circuit boards 18a and 18b are electrically connected by soldering or the like.

Further, the upper cover 12 is shown in FIGS.
, The groove 12b on the right side of the circuit board 15
It is provided with a recess 12e mounted on b and capable of receiving an electronic component 21 such as a selection IC. As a result, the circuit board 15b is provided with the groove 12b of the upper cover 12.
Would be completely contained within.

The tablet device 10 according to the present invention is configured as described above, and by applying the coordinate pointing pen 22 for AC excitation to the predetermined position of the detecting portion 11 from above the upper cover 12, the position is detected. At, the corresponding x-direction and y-direction magnetic wires 16, 19 generate a pulsed voltage at their ends by the so-called Matouch effect. This pulsed voltage is applied to the circuit board 15a,
The XY coordinates on the detection unit 11 can be designated by the detection by the circuit unit 13 via 15b, 16a, and 16b.

In this case, the magnetic wire 16 of the detection unit 11,
19 is not fixed on the printed circuit board,
Since it is directly fixed to the inner surface of the upper cover 12, the tip of the coordinate indicating pen 22 has a magnetic wire 16 which is larger than that of a conventional magnetic wire fixed on a printed circuit board.
You can be closer to 19. Therefore, the coordinate input can be performed more stably and surely.

Further, the magnetic wires 16 and 19 of the detection unit 11
However, since it is fixed directly to the inner surface of the upper cover 12, there is no need for a printed circuit board for fixing the magnetic wires 16 and 19 as in the conventional case, so that the tablet device 10 as a whole is lightweight and thin. Can be configured.

In the embodiment described above, the magnetic wire 1
Although 6 and 19 are directly fixed to the inner surface of the upper cover 12, the invention is not limited to this, and the magnetic wires 16 and 19 may be directly fixed to the inner surface of the lower cover.

[0021]

As described above, according to the present invention, since each magnetic wire is fixed to the inner surface of the upper cover or the lower cover, there is no need for a printed circuit board to which the magnetic wire is fixed as in the conventional case. become. Therefore, the number of parts can be reduced, the cost can be reduced, and the overall weight and thickness of the tablet device can be reduced.

Further, since each magnetic wire is soldered to the circuit board embedded in the groove provided along the side edge of the inner surface of the upper cover or the lower cover, the circuit board is It does not protrude inward from the inner surface of the upper or lower cover. Therefore, the entire tablet device can be thinned.

An IC in which the groove is mounted on a circuit board.
When formed so as to be able to receive electronic components such as, a circuit for processing the voltage generated in each magnetic wire may be formed on the circuit board. . Therefore, the entire tablet device including the processing circuit can be made even thinner.

Thus, according to the present invention, the overall weight is
Further, it is possible to provide a tablet device using an amorphous magnetic wire, which can be configured to be thin.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of a tablet device according to the present invention.

FIG. 2 is a plan view of an upper cover of the tablet device shown in FIG.

3 is a cross-sectional view of an upper cover in the tablet device of FIG.

FIG. 4 is a partial enlarged cross-sectional view of the tablet device of FIG. 1 near a side edge of an upper cover.

FIG. 5 is a schematic perspective view showing an example of a tablet device using a conventional magnetic wire.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 tablet device 11 detection part 12 upper cover 12a, 12b, 12c, 12d groove part 12e recessed part 13 circuit part 14 lower cover 15a, 15b, 18a, 18b circuit board 16, 19 magnetic wire 17, 20 adhesive sheet 21 electronic component 22 coordinates Pointing pen

Claims (2)

[Claims] 1. A tablet device comprising a plurality of amorphous magnetic wires extending in the x-direction and the y-direction, respectively, wherein each magnetic wire is fixed to an inner surface of an upper cover or a lower cover, and the upper cover or the lower cover. A tablet device, wherein the tablet device is soldered to a circuit board embedded in a groove provided along a side edge of an inner surface of the cover. 2. The groove is I mounted on a circuit board.
The tablet device according to claim 1, wherein the tablet device is formed so as to receive an electronic component such as C.