JPH0441355Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electronic timepiece that can provide multiple functions by replacing the liquid crystal cell.

[Conventional technology]

In recent years, the use of microcontrollers in electronic watches has progressed, and by creating software with a single microcontroller IC, preparing multiple liquid crystal cells, and connecting the function specifying device on the board to the selection electrode by soldering or bonding, We offer different electronic watches with multiple functions.

[Problem that the invention attempts to solve]

In the above-mentioned electronic timepiece, in order to provide an electronic timepiece with a plurality of different functions, it was necessary to prepare a plurality of liquid crystal cells and connect circuit board patterns for each function of the timepiece in a modular state. Performing such soldering work has the disadvantage of increasing the number of man-hours.

The purpose of the present invention is to solve the above-mentioned drawbacks, and to provide a clock with multiple functions by simply incorporating liquid crystal cells suitable for the functions without the need for connection wiring on the board.

[Means for solving problems]

In order to achieve the above object, the present invention has the following configuration. That is, in an electronic watch that can be configured to have multiple different functions by combining a microcomputer IC that can be programmed with multiple programs and a liquid crystal cell that has different display patterns, the function designation device for specifying the multiple functions is , a selection electrode disposed on a circuit board on which the microcomputer IC is mounted, a set of power supply electrodes disposed close to the selection electrode, and a selection connection electrode formed on the connection electrode portion of the liquid crystal cell. It is characterized by what it did.

〔Example〕

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

FIG. 1 is a plan view of the circuit board of the present invention.

1 is a circuit board for an electronic watch; 2 is a watch microcomputer IC capable of multiple programs; and is mounted and connected to the circuit board 1; 3 is an electrode pattern arranged on the circuit board 1; It is. A selection electrode composed of three electrodes 4a, 4b, and 4c and a pair of power supply electrodes, Vdd electrode 5 and Vss electrode 6, are arranged on a part of the electrode pattern 3 on the circuit board 1. There is. The selection electrodes 4a, 4b, 4
c is an electrode for selecting a desired program from among a plurality of programs of the LC microcomputer of the present invention.

The present invention can be combined with liquid crystal cells with different display patterns.

Further, the Vdd electrode 5 can be connected to a plurality of selection electrodes 4a, 4b, 4c by commonly connecting two electrodes.
The number of electrodes is reduced by allowing more pattern connections.

FIG. 2 is a display pattern diagram corresponding to a program of one function among the display patterns of a plurality of liquid crystal cells of the present invention. Reference numeral 7 denotes a liquid crystal cell, and on the surface of the liquid crystal cell 7, there are selective connection electrodes consisting of three electrodes 9a, 9b, and 9c, and a pair of power supply connection electrodes, a Vdd connection electrode 10 and a Vss connection electrode 11. A pattern is formed on the liquid crystal cell 7.

Further, on the liquid crystal cell 7, a selective connection electrode 9
a, 9b, 9c are patterns on the Vss connection electrode 11
101 electrically connected. The shape of the electrodes formed in the liquid crystal cell 7 is changed so that the Vss connection electrodes 11 protrude inward to reduce the number of connection electrodes.

FIG. 3 is a diagram of a liquid crystal cell pattern corresponding to the display of another program among the display patterns of a plurality of liquid crystal cells of the present invention.

12 is another liquid crystal cell of the present invention, in which the selective connection electrode 9a has a pattern 102 on the Vdd connection electrode 10;
Moreover, the selective connection electrodes 9b and 9c are the Vss connection electrodes 11.
electrically connected to pattern 103.

FIG. 4 is a sectional view of the electronic timepiece of the present invention.

An electrode pattern 3 of a circuit board 1 on which an IC chip 2 of an LC microcomputer for a watch is mounted and a display pattern of a liquid crystal cell 7 is electrically connected via a connecting rubber 13.

Reference numeral 14 denotes a battery, which is held by a module receiver 15 and electrically connected to it.

Next, the operation of the electronic timepiece according to the embodiment of the present invention having the above configuration will be explained.

First, a combination of the circuit board 1 shown in FIG. 1 and the liquid crystal cell 7 shown in FIG. 2 will be described. circuit board 1
The microcomputer IC 2 mounted on the microcomputer IC 2 has been created in software so that it can run multiple programs, and switching between programs is performed using the selection electrodes 4a,
Switching is possible by connecting 4b and 4c to the Vdd electrode 5 or the Vss electrode 6.
On the other hand, the liquid crystal cell 7 in FIG.
In this case, a, 9b, and 9c are taken as an example, and both
Connect it to the Vss connection electrode 11 and keep it at "L" level. When the circuit board 1 and the liquid crystal cell 7 are assembled together, the circuit board 1 is assembled as shown in the cross-sectional view of FIG.
By electrically connecting the electrode pattern 3 and the pattern of the liquid crystal cell 7 via the connecting rubber 13, the selection electrode 4a in FIG. 1 is electrically connected to the selection connection electrode 9a in FIG. 2. Similarly, with Vdd electrode 5
Vdd connection electrode 10, Vss electrode 6 and Vss connection electrode 1
1 and are electrically connected to each other.

Therefore, in the pattern of the liquid crystal cell 7, if the selective connection electrode 9a is connected to the Vdd connection electrode 10, the selection electrode 4a becomes "H" level, and if the selective connection electrode 9a is connected to the Vss connection electrode 11, the selection electrode 4a becomes "H" level. , the selection electrode 4a becomes "L" level.

The liquid crystal cell 7 in FIG. 2 has selective connection electrodes 9a, 9.
When both b and 9c are set to the "L" level and this liquid crystal cell 7 is assembled into a module, the program selects the content of the soccer type function.

Similarly, the liquid crystal cell 12 and circuit board 1 shown in FIG.
The same thing happens when you combine them. Selective connection electrodes 9a, 9b, 9c of the liquid crystal cell 12 in FIG.
Other functions can be selected by changing the combination of levels from the contents of the liquid crystal cell 7.

That is, if a liquid crystal cell 12 selectively connected such that the selective connection electrode 9a is at "H" level and 9b and 9c are at "L" level is installed, a lining type program is selected.

In this way, the present invention changes the level of the selection electrode for each liquid crystal cell, so that a desired program can be selected from a plurality of programs. Therefore, by simply changing the liquid crystal cell, a program with functions that match the liquid crystal cell can be automatically selected.

[Effect of idea]

As mentioned above, with this invention, by preparing one microcomputer IC chip and multiple liquid crystal cells, it is possible to manufacture watches with multiple different functions. Therefore, by using this invention, it is possible to make multiple watches with one module.In recent years, the functions of wristwatches have been diversifying, and by using this invention, it is possible to make multiple watches with one module. At the same time, in terms of price, it can be made cheaper by standardizing one module.

[Brief explanation of drawings]

Figure 1 is a plan view of the circuit board of the present invention, Figure 2 is a display pattern diagram of the first type of liquid crystal cell, Figure 3 is a display pattern diagram of the second type of liquid crystal cell, and Figure 4 is a cross-sectional view of the present invention. It is. 1... Circuit board, 2... Microcomputer IC, 4a,
4b, 4c...selection electrode, 5...Vdd electrode, 6...
...Vss electrode, 7, 12...Liquid crystal cell, 9a, 9
b, 9c...Selective connection electrode.

Claims (1)

[Scope of utility model registration request] In an electronic watch that can be configured to have a plurality of different functions by combining a microcomputer IC capable of multiple programs and a plurality of liquid crystal cells having different display patterns, a function specifying device for specifying the plurality of functions is provided. , a selection electrode disposed on a circuit board on which the microcomputer IC is mounted, a power supply electrode disposed adjacent to the selection electrode, and a selection electrode formed on a connection electrode portion of the liquid crystal cell and connected to the selection electrode on the circuit board. An electronic timepiece structure comprising a selective connection electrode for connecting to a power supply electrode.