JPS59128718A - Matrix switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plurality of X-thin electrode wires arranged in parallel to extend in the X-axis direction and a plurality of Y-axis heavy pole wires arranged in parallel to extend in the Y-axis direction. This invention relates to a matrix switch constructed by orthogonally arranging the following elements with gaps in between.

In this type of matrix switch, conventionally,
Since the configuration is such that signals are input/output for each X-axis Wc polar line and Y-axis heavy pole line, there is a problem that an extremely large number of signal lines corresponding to the total number of each electrode line are required. This not only makes wiring the signal lines troublesome, but also requires a large amount of wiring space, resulting in an increase in overall size.

The present invention has been made in view of the above-mentioned considerations, and its purpose is to reduce the number of required signal lines;
There is a VC that provides a matrix switch which has effects such as simplifying the wiring process of signal lines, reducing the wiring space for the signal lines, and eliminating the risk of the overall size increasing.

Below, the first embodiment of the present invention will be explained with reference to Figs. 1 to 7'.
This will be explained with reference to.

In FIGS. 1 to 3, 1 and 2 are spaced 3 between each other.
A first substrate and a second substrate are arranged in parallel so that a For example, 16 m pairs are arranged in parallel to extend in the X-axis direction on the first board.
In the set of X-axis heavy pole lines, each X-axis heavy pole line 4 has a plurality of X-axis unit parallel lines 4a, for example, two trees, each having a minute interval from each other.
, 4b, in this case, each X-axis unit parallel line 4a, 4
b is divided into two groups. 5 are arranged in parallel on the second substrate 2 so as to extend in the X-axis direction, and are arranged perpendicularly to the X-axis pole line 4VC with a gap 3 interposed therebetween. In the y@electrode wire, each Y-axis heavy pole line 5 is composed of a plurality of Y-axis unit parallel lines 5a15b, for example, two trees, each having a mutually small VC interval, and in this case, each Y-axis unit parallel line 5a, 5b is divided into two groups 1. 6 is a spacer formed on the first substrate 1 by printing means vcLt);
The spacer 6VC maintains the gap 3 between the first substrate 1 and the second substrate 2. In addition, instead of spacer 6,
At least a structure in which a film having holes is provided at each intersection of the XIl[Ih electrode line 4 and the Y-axis heavy pole line 5 may be used.

On the other hand, 71.72..., 716μ first substrate 1kVC
Of the 16 first X-axis terminals formed, these IX-axis terminals 71, 72. ..., 716 is each X axis 'f!
/1. They are respectively connected to one of the X-axis unit parallel lines 4a of the polar lines 4. 8+, 82. ...+s+6h also the first
m number of 16 second X-axis terminals formed on the substrate 1, these second X-axis terminals 81, 82. ..., 816 are the other X-axis unit parallel lines 4bV (respectively connected to each Of the 16 first X-axis terminals, these @1Y-axis terminals 91, 92..., 916 are connected to one Y-axis unit parallel line 5arc of each Y-axis double pole line 5.101. 102+..., 1o16ir,
Similarly, n [2 Y-axis terminals formed on the substrate 2 of @2, these second Y-axis terminals 10 +, 102.・、
1016i is connected to the other Y-axis unit parallel line 5bVc of each Y-axis load t'Mtla5. Therefore, the first x@@child 71.72. ....

716 is divided into 4 groups with 4 pieces in each group.
) are set corresponding to all groups 7A, 7B, 70, and 7D.
Lale i 1st Noi%li11 a, 1 l b, 1
1 c.

11 d K connection is made. In addition, the second X-axis terminal 8
1.82. . . . , 816 is each first X-axis terminal group 7A,
7B.

7G! , 7DIC compatible groups are extracted one by one from each group and combined, and the terminals are divided into four groups of four from the VC, and each of the second X-axis terminal groups 8A, 8B, 80 .
a second signal line 12a provided corresponding to 8D;
12b, 12c, and 12dVC are connected. on the other hand,
The first Y-axis terminals 9+, 92°, .
A third signal line 1 provided corresponding to 90 and 9D, respectively.
3a, 13b, 13c, and 13d.

In addition, the second Y-axis terminal 1 (11, 102+..., 101
6 is divided into four groups each consisting of four terminals by extracting one terminal from each group corresponding to each of the first Y-axis terminal groups 9A, 9B, 9C, and 9D and combining them. Second
Y-axis terminal group I OA, I DB, I DC! , 10Di
A fourth signal line 14a provided corresponding to the husband It VC,
14b, 1(6) 4Q, 14dVc connection. And then the board 1 of @1 mentioned above. Second substrate 2. X thin electrode wire 41~4+
6. Y@electrode wires 51-516. First signal line 11a
~11d, 277th) Signal lines 12a ~12d,
Third signal lines 13a to 13d, fourth (i) signal line 1
4a to 14 (matrix switch 15 by VC such as J)
is configured.

Incidentally, the switch segment of the matrix switch 15 is connected to the VcX-axis electric axis line polar line 4YllllII as shown in FIG.
It is composed of the portion AVC where the I electrode lines 5 intersect, and therefore, in the case of this embodiment, the number of switching segments is 16×16=256.

In FIG. 5, which shows the electrical connection relationship, 16 is a microcomputer, and its output terminals QO1Q1°Q2 . Q
B are the first signal lines 11a, 11b, 11c, 1, respectively.
1dK connection, and input terminals Pao and Pad
, Paz, and rag are the second signal lines 12&, 12, respectively.
b, 120, 12 d VC'i1m';
Both 1/C1 input terminals Pbo, Pb1.
Pbz and Pbs are the third signal lines 13a, 13b, respectively.
13e, 13dl/7m connection salle, and input terminal Pe
a, PQl, PO2, and Pas are each the fourth signal line 1
4a, 14b, 14c, and 14d. And @2. Third. Fourth signal lines 12a to 12d, 1
3a to 13d and 14a to 14d are respectively grounded through respective pulldown resistors 17.

Next, regarding the operation of the above configuration, the microcomputer 1
The explanation will be made with reference to FIG. 6, which shows the control contents of step 6. In addition, FIG. 6 vci shows a sub/V-chin for the on-state succession V of the matrix switch 15 by the microcomputer 16 as a flowchart. Now, the output terminal Qo of the microcomputer 16,
Q+, Q2. From Qs, the output of the output terminal QO is the least significant bit, and the scanning signal 8a of bits 7'c and a is "0001" → "0010" → "0100J → "
The microcomputer 16 is configured to output the scanning signal 8a cyclically in the order of ``1000'', and first, in the ``standby'' step (a) shown in Fig. D. In the next "output" step (b), the scanning signal 8a is output. Then, only the first signal line 11a becomes V
C "1" level signal is applied and the first signal line 1
Since "0" level signals are applied to 1b, 11C, and 11dVc, the first X-axis terminals 71, 72, 7s, and 7a exhibit high level /I/, respectively.

At this time, a predetermined portion of the second substrate 20 is suppressed and deformed, so that, for example, the fifth X-thin electrode wire 4 from the top in FIG. 2 (corresponding to the first X-axis terminal 75 and the second X-axis terminal 85)
and the second Y-thin electrode wire 5 from the left in FIG. 3 (corresponding to the first Y-axis terminal 92 and the second Y-axis terminal 102) are in contact with each other, ~81
6. First Y-axis terminals 91 to 916, second Y-axis terminals 101 to
1016 is the first X-axis terminal 71.72.75.74V
Since they are all in a non-conducting state with respect to C, the second signal line 1
2a to 12d, third signal lines 15a to 13d, and fourth signal lines 14a to 14d, respectively, have earth levels/L/Ic.
A corresponding "0" level signal is now provided. Therefore, the microcomputer 16 performs the "output" process (
→In the later “input J process (c), each signal line 12a~
The signals from 12d, 13a to 13d, and 14a to 14d are converted into 4-bit data signals 8b, Sc, and S, respectively.
d (input terminal Pa o.

After reading the inputs of Pbo and Pco as the least significant bits), the process moves to the determination step). In this determination step), based on the data signal sb read as described above, it is determined whether the switch segment of the matrix switch 15 is turned on or not using the data signal f8b lIl:
The determination is made based on whether or not the rIJ bit is included. That is, when the switch segment of the matrix switch 15 is turned on, the 16 pairs of X-thin electrode wires 4
At least one pair of each of the X-axis unit parallel lines 4a, 4b are brought into contact with each other via the Y thin electrode wire 5, so that the second X-axis terminals 81, 82, . ..., at least 1 of 816
Since the data signal sb exhibits a high level μ, a "1" level signal is necessarily given to any one of the second signal lines 12a to 12d, and therefore the data signal sb
The ON state of the switch segment can be determined depending on whether the bit "1" is included or not. In this case, VC is connected to the second signal line 12a as described above.
Since "0" level signals are applied to each of 12 dVc and 12 dVc, "NO" is determined in the determination process based on the data signal 5bvC of 1'-0000J. In this way, “N
If it is determined that it is "O", V'C is jumped to the determination step (to), and in this determination step (to), the scanning signal 8 is
It is determined whether or not a is rl 000J, but in this case, the VC detects that the scanning signal 8a is l'-0001J.
Therefore, the determination is "NO". In the discrimination process (to),
If the determination is “NO”, rc c, “shift” step (g)
Move to. In this "shift" step (g), the pitch k corresponding to "1" in the scanning signal 8avc is shifted by one step to the left. Therefore, in this case, the scanning signal 8a is changed to l'-DOloJ. , After this, it is returned to the "output" process (b) and the above "0010" is output.
The scanning signal 8a is output to the output terminals Qo, Q+,
It is output from ~2°~3. Then, the "1" repeat signal is applied only to the first signal line 11b, and the first X-axis terminals 75.7b, 7y, and 7s exhibit a high level. In this case, V'Cff first X-axis terminal 75
, the first Y-axis terminal 92 and the second Y-axis terminal 102 are electrically connected to each other, and the @1x-axis terminal 75 and the second
Since the second X-axis terminal 85. is also electrically connected to the axis terminal 85. First Y-axis terminal 92. The second Y-axis terminals 102 each exhibit a high level /I/, resulting in data signals 8b of 0001J, [0OOIJ
Data signal Be, l-0010J data signal 8
V so that d is read in the "input" step (c)
C becomes. Therefore, in the next discrimination step), the data signal s
Since b contains a bit of "1", it is determined as "YESJ" and the process moves to the "operation" step (e). In this "calculation" step (e), the data signal 8 read by the VC as described above is
b, Sc, Sd and scanning signal q at this point
It is determined which switch segment is turned on by calculation VC based on Sa. That is, “0010J
The scanning signal 8arc corresponds to the first X-axis terminal group 7.
It can be seen that switching is performed in any one set of the X-axis heavy pole wires 4 compatible with BIC, and the data signal 5bVc of "0001" indicates that the second X-axis terminal group 8AI/
Since it can be seen that switching is performed on one of the X-axis heavy pole lines 4 corresponding to 7 m, switching is performed on the fifth X-axis heavy pole line 4 from the top in the resulting VC figure 2. It can be determined that Furthermore, it can be seen that switching is performed in any one set of the Y-axis heavy pole lines 5 corresponding to the first Y-axis terminal group 9AK with the data signal tscr,c of JOOOlj, and that the data signal 8dVC of 0O10J is switched. Since it can be seen that switching is performed in any one set of Yl [Ill electrode wires 5 corresponding to the second Y-axis terminal group 10BVC, the resulting VC is the second Y-axis heavy pole from the left in Fig. 3. It can be determined on line 5 that switching is occurring.

After determining which switch segment of the matrix switch 15 is turned on in this way, vc t-
r,, the program is cyclically executed in the following order: discrimination process (to) → "shift" process (g) → "output" process (b) → "input" process (c) → discrimination process (to) → discrimination process (to) When the scanning signal 8a is finally determined to be "YE8J" in the determination process (in other words, the scanning signal 8a is "1 (13)").
) rc, one subframe execution for reading the ON state of the matrix switch 15 is completed. Even when a switch segment different from the above is turned on, it is possible to determine which switch segment is turned on by the same operation as described above.

In the above-described tree embodiment rc, the first to fourth signal lines 1 are connected to the matrix switch 15.
1a to 11d, 12a to 12d, 15a
It is only necessary to provide a total of 16 lines of ~13d, 14a ~14a, and the conventional configuration (if the X-axis heavy pole line and the Y-axis heavy pole line are each 16 trees, a total of 32 S= lines are required in the past)
The total number of LvM lines can be significantly reduced. The degree of reduction in the number of required signal lines in this way is determined by the X-axis polar line and Yl[111
As the number of wt polar lines increases, the VC becomes more pronounced, and an example thereof is shown in FIG.

FIG. 8 VC shows a second embodiment of the present invention, which will be described below. That is, in this embodiment, the X-axis unit parallel lines 4a and 4b' are formed into a shape that intertwines with each other as shown in the south direction, and the Y-axis unit parallel lines 5a and 5b are similarly connected. The switch segment portions B and F (are shaped so that they intertwine with each other as shown in the figure. With such a configuration, when a switching operation of the switch segment portion 9B is performed, vc
X-axis unit parallel lines 4a, 4b and Y-axis unit parallel lines 5a, 5
The contact between the terminals b becomes cv and VC, and the switching operation becomes stable.

According to the rC of the present invention, as is clear from the above explanation,
In a matrix switch VC in which X-axis heavy pole lines and Y-axis heavy pole lines are orthogonally arranged with a gap in between, the number of required signal lines can be completely reduced, thereby simplifying the signal line wiring process. In addition, it is possible to achieve excellent effects such as reducing the wiring space for the signal lines and eliminating the risk of increasing the overall size.

[Brief explanation of the drawing]

Figures 1 to 7 show the first embodiment of the present invention.
[Figure 1 is a partial sectional view, Figure 2 is a diagram showing the X-axis heavy pole line and its connection relationship, Figure 3 is a diagram showing the Y-axis gravity line and its connection relationship, and Figure 4 is an enlarged view of the main part. FIG. 5 is a plan view, FIG. 5 is a diagram showing the electrical configuration, FIG. 6 is a flowchart for explaining the operation, and FIG. 7 is a diagram for explaining the difference from the conventional configuration. Further, FIG. 8 is a diagram corresponding to FIG. 4 showing a second embodiment of the present invention. In the figure, 1 is a first substrate, 2 is a second substrate, 3 is a gap, 4
4a and 4b are X-axis unit parallel lines, 5 is a Y-axis unit parallel line, 5a and 5b are Y-axis unit parallel lines, 71 to 716 are first X-axis terminals, and 81 to 816 are second Shaft terminal, 91-9
16 is the first Y-axis terminal, 101 to 1016 are the second Y-axis terminals, 11a to 11d are the first signal lines, 12a N12de
l second signal line, 13. a to 13d are third signal lines,
148 to 14d are fourth signal lines, and 15 is a matrix switch. 6 M Start scanning iris number Sa 'ooo+, l: h, y, i 3 ``Output scanning iris word Sa, (') Data 1 iris number Sb, Sc, Sd (c) 襄入か 3 Ata Shin? 1Sb 1; 5J bottle μ force included N. 7v sand 0 ES On l, switch in l position - l toy standing 1 position
-128718 (7) 7th M 8th M

Claims (1)

[Scope of Claims] 1. First and second substrates arranged parallel to each other with a gap between them, at least one of which is flexible; m sets of X-thin electrode wires, each consisting of a plurality of X-axis unit parallel lines, arranged in parallel so as to extend to , and arranged orthogonally to the X-thin electrode wires on the second substrate through the gap. n sets of Y-axis heavy pole lines each consisting of a plurality of Y-axis unit parallel lineworks 9 arranged in parallel to each other? and dividing the plurality of X-axis unit parallel lines into groups for each X-axis polar line, and determining the X-axis unit parallel lines y belonging to each group.
Each Y-axis unit parallel line is connected to m X-axis terminals provided in k sets, and the Y-axis unit parallel lines are divided into two groups for each Y-axis double pole line, and the Y-axis unit parallel lines belonging to each group are connected. The line k is connected to n Y-axis terminals each provided in one set, and the input shaft terminals of a specific set l of the set of X-axis terminals are divided into a plurality of groups, and each group is connected to a husband (1). and connect the X-axis terminals of other sets of the X-axis terminals from each μm group corresponding to each group of the specific set of X-axis terminals. Extracting and combining them one by one Divide them into multiple groups from the VC and connect each group to corresponding signal lines, Divide the terminals into multiple groups and connect each group to corresponding signal lines,
The Y-axis terminals of other sets of the Y-axis terminals are extracted one by one from each group corresponding to each group of the first Y-axis terminals of the specific set and combined to form a plurality of groups. A matrix switch characterized in that each group is divided into corresponding groups and connected to ratio signal lines.