JPS5822436A - Coordinate input device - Google Patents

Abstract

PURPOSE:To remove the corrugated insulating film of each electric wire by plain weaving, and to prevent the disconnection, short circuit, etc., of an electrode when it is made thin, by plainly weaving electric wires into a sheet, and providing each electrode of the sheet body in one direction with an insulating film. CONSTITUTION:For the manufacture of a coordinate input device for inputting X and Y coordinates to a processor, numbers of electric wires 2 each coated with an insulating film like an enameled wire, etc., are used and woven plainly into a fabric sheet 1. Insulating films 3 of peak parts of corrugated electric wires 2 in one surface of this sheet 1 are removed partially with sandpaper to expose the insides of the conductors, thus forming conduction parts 4. Each electric wire 2 woven laterally is used as an X electrode, and each electric wire woven longitudinally is used as an Y electrode. Further, a conductor 5 of size a little bit longer than each conduction part 4 is formed, and the electric wires are brought into contact with the part of the conductor 5 to input X and Y coordinates.

Description

[Detailed description of the invention] The present invention relates to an input device for X%Y coordinates.

Conventionally, as a coordinate input device called a matrix sheet, two substrates on which many strip electrodes are formed in parallel are used, and these substrates are arranged so that each strip electrode is orthogonal to the X%Y direction. A sandwich structure in which the pressure-sensitive conductive sheets are sandwiched between the pressure-sensitive conductive sheets is known. However, since the above-mentioned thin strips are made by attaching copper foil to a substrate and etching it to form a predetermined width, if you try to make 11il #R1I & other thinner and shorten the pitch in order to improve the resolution, (The strip electrode may break during etching) or may come into contact with an adjacent strip electrode.

The present invention provides a coordinate input device that can solve the above problems, and embodiments of the present invention will be described below along with one aspect.

FIG. 1 shows a sheet (1) according to the invention. This sea H
IJti analogy is enamel etc. I am insulated BLw
A large number of wires (2) provided with X are used and these are plain woven to form a cloth-like sheet. This sheet (1) has its On one side, a conductor 11111 is formed by removing a part of the insulating film (3) on the top of each wavy electric wire (2) with sandpaper or the like, and making the internal conductor wire crest. ms (4)
is provided.

The nine electric wires woven in the horizontal direction of the sheet (l) having the above structure are used as electrodes, and the six wires woven in the vertical direction are Yl s Yl... % make with others. Then, as shown in No. 6, the distance between the valley guide portions (4) is
When a conductor (5) having a slightly smaller dimension contacts the two conductor parts +41 (4) in the ) and can specify the coordinates of that point.

Figure #I4 shows an embodiment of an image display device that draws characters and figures on a television screen using the above C1-(1).

The sheet (1) is provided with electrical conductors of X,, 4). The H direction m compliance counter (6) counts the clock pulses CK,
Switches that configure the H scanner (8) according to the count value 8H1s 5ii2s 8MS・tap・8umi
-Sequentially and repeatedly turned on. As a result, Yl...
..."The voltage E is repeatedly applied to Ym* in the J1 order. ■ The n-direction counter (7) counts the carry CK2 of the counter (6) as a clock, and according to the count value, V Switch S configuring the scanner (9)
Vt, SV2, Svs"" svn, and i are turned on nine times in sequence. Incidentally, one scanning time of the scanner (81) is approximately equal to 1H (horizontal scanning period) of the television signal, and approximately equal to - scanning time Fiiv (vertical scanning period) of the scanner (9).

While the sheet (1) is being scanned as described above, for example, the conductive portion (-
X4y) is brought into contact with the conductor (5). In this state, when switch 8H2 is turned on while switch 8M2 is on,
The voltage E is obtained from the switch 8H2 to one end of the resistor through the conductor (4:I:), the conductor (5), the conductor (4y) and the switch 8H2. This voltage v1 is detected as data "1" by the level detector 1. This data “1
” is an X%Y memo! J (11) is added. This memory (11) has a capacity of n, xm bits, and has a color/color (
The address is specified by the count value of 67(7). Therefore, it is written to the address corresponding to the above-mentioned data Ia, 52y2. By sequentially specifying the desired coordinates on the sheet (1) by the conductor (5) as described above, the memory αυ Data of "1" is successively embedded in the addresses spread out at the specified coordinates.

Therefore, the entire memory aυ is loaded into the image formed by data rlJ and rOJ.

After writing one image in this way, the memory aυ
The indulgence of rWJ IA to Hlv is started by ptsuk. This read signal is converted into a video signal by I! In addition to #4, it is converted into a television signal of a predetermined format and added to the monitor reception. This allows images to be displayed on the screen. In addition, when obtaining a color image, it is preferable to perform color estimation for the video signal converter Q. Further, while writing may be performed, reading may be performed during the vertical blanking period.

Figure @5 shows an example in which the sheet (1) is used as a pressure-sensitive sheet.

In the figure, a thin conductive sheet QcJ is laminated on a conductive substrate Q4 made of aluminum or the like. The sheet (1) is supported with the conductive sheet 4 at a predetermined distance d with the peak on which the conductive turtle portion (4) is provided facing downward. One insulating sheet if9 is laid on the upper surface of this sheet (1).

As shown in the sixth factor, when the holding sheet is pressed with a finger Q7), the two conductive parts (4) (41) are short-circuited by the conductive sheet 4. Also, when pressed deeper as shown in Fig. 7, for example, 4 II conductor 5 (4) is shorted. Therefore, finger a
Depending on the pressing depth E of η, for example, when extracting an image, the size of the dots, the thickness of the lines, etc. can be changed.

In addition, in each of the above-mentioned examples, the electric wire (2) in both directions of X%Y
A material having an insulating film (3) is used for X, Y
Wires without insulation coating may be used in either direction; in short, wires in both directions are IP! It is sufficient if it has been brewed and made into a thousand weavings. The conductive part (4) is attached to the sheet (1) as necessary.
) may be provided on both sides.

As described above, the present invention forms a sheet-like body by weaving a plurality of electric wires into a plain weave, and forms the sheet-like body in at least one direction (
Coordinate input characterized in that an insulating film is provided on each edge of the electric wire (for example, in the X or Y direction), and the insulating film on each of the wavy tops of the electric wire is removed according to the above-mentioned method. It is related to the device.

Therefore, according to the present invention, unlike conventional matrix sheets, etching is not performed, so even if the ionization is reduced,
It does not cause problems such as disconnection or short circuits like low rice, and
It is also easy to manufacture. For example, as an electrode, the diameter is 100μ.
By using enamel with a sparse sparseness less than that, a significantly higher resolution can be obtained.

[Brief explanation of the drawing]

Figures 1 to 6 show examples of the present invention. Figure 1 shows a part of the sheet, Figure 2 is an enlarged view of the main part, and Figure 6 shows the main part 11.
4 is a circuit diagram showing an embodiment in which the present invention is applied to a 19R public display device, and FIG. 5 is a sectional view showing an embodiment in which the present invention is applied as a pressure-sensitive sheet. , FIG. 6 and FIG. 7 are sectional views taken along plane 1111 showing the operating state of FIG. 5. In addition, in the symbols used in the drawings, (1)...
...... Sheet (2) ...... Electric wire (3) ...... Loquat film (4) @11
61111... Conductive part. Agent Masaru Ueya Matsuzai Figure 3

Claims (1)

[Claims] A plurality of electric wires are made of plain fiber to form a sheet-like body, each electric wire in at least one direction of the sheet-like body is provided with an insulating film, and the above-mentioned ☆m- is made into a pat-like shape by the plain weaving. A coordinate input device characterized in that an insulating film on each crest of a wave is removed.