JPS6138426B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a display section of an electronic watch, etc.
The present invention relates to an electronic display device that displays a map and a calendar using at least numerical values from 1 to 31 for dates.

2. Description of the Related Art A world clock is known that displays the time in multiple regions with different time zones and clearly indicates which region the displayed time is in using a world map. However, since this type of world clock uses a world map, it is large and cannot be applied to small electronic clocks such as wristwatches. In addition to the time display of hours, minutes, and seconds, electronic watches also display dates such as the month, day, and day of the week, stopwatches, alarms, calendars, etc.
Although many functions can be incorporated into electronic circuits,
Since the display area is limited, it is difficult to incorporate these functions. In particular, in calendar tables, display elements such as liquid crystals are arranged in correspondence with printed numeric characters for dates from 1 to 31, as described in Japanese Patent Application Laid-open No. 49-73230, and printed numerals indicating the current day are arranged. It is known that a liquid crystal display element is used to clearly display the characters and the printed numerals of the standard Sunday, but such a calendar table requires an extremely large display area.

Therefore, if an attempt was made to obtain a display device that has the display function of both the world map and the calendar table described above, there was a drawback that the device itself would become extremely large because both would have to be arranged in parallel. For example, if you try to place a world map using the space between printed numerical characters on the calendar table described in the above publication, the device itself can be made smaller to some extent, but since both are displayed at the same time, it is extremely difficult to see. It had the drawback of getting used to it.

This invention was made based on the above circumstances, and an object of the present invention is to provide an electronic display device that can effectively display a calendar table and a map, which occupy a large display area, in a small display area. It is.

Hereinafter, the present invention will be specifically explained based on an illustrated embodiment. In the figure, 1 is an oscillator,
The signal from this oscillator 1 is frequency-divided via a frequency divider circuit 2 into a signal 1P/S with a period of 1 second, and is applied to a counter circuit 3. In the above clock counting circuit 3, the time is
Minutes and seconds, as well as months and days, are counted, and timekeeping information for hours and minutes is output via bus line A, and timekeeping information for month and day is output via bus line B, and is provided to display switching circuit 4. There is. Note that the timekeeping information of the month and day is given to the display switching circuit 4 via the reference day of the week detection circuit 5. The reference day of the week detection circuit 5 detects the month given from the counting circuit 3;
Based on the day's time information, it is detected which column of the calendar table the Sunday of the month is located, and the detected data is output to the display switching circuit 4.

Further, S ₁ is a region designation switch, and the operation signal of this region designation switch S ₁ is sent to the one shot circuit 6.
The signal is given to the area counter 7 as a signal for specifying the area. A data signal associated with region designation is sent from the region counter 7 to the time difference generation circuit 8.
The time difference generating circuit 8 supplies an addend signal of the time difference to the counting circuit 3 every time the data signal changes. Further, the data signal from the regional counter 7 is also applied to the display switching circuit 4.

The display switching circuit 4 includes four AND circuits 41,
The output signals of the AND circuits 42 and 43 are provided to an OR circuit 45. The AND circuit 41 is supplied with the output of the standard day of the week detection circuit 5, and the AND circuit 42
The clock information for the month and day is directly given from the counting circuit 3. Further, the AND circuit 43 is given clock information for hours and minutes, and the AND circuit 44
is given a data signal from the regional counter 7. The output of the AND circuit 41 is applied to the display section 9, and a Sunday display 92, which will be described later, is selectively displayed. In addition, the AND circuits 42 and 43
The output is given to the display unit 9 via the OR circuit 45, and a digital display 93, which will be described later, displays numbers. Furthermore, the output of the AND circuit 44 is
It is applied to the display unit 9 to selectively display the region display body 94.

Further, S ₂ is a switch for switching display between the calendar table and the world map on the display section 9, and the operation signal of this switch S ₂ is sent to the input terminal T of the binary flip-flop 11 via the one-shot circuit 10.
It is designed to give a switching display signal to the Set output terminal Q of the above binary flip-flop 11
The output signal is given to the calendar display body 91 of the display section 9 as a display drive signal,
The signal is also applied to each AND circuit 41, 42 as a gate signal. Further, the output signal from the reset output terminal of the binary flip-flop 11 is applied to the map display 95 as a display drive signal, and each AND circuit 4
3 and 44 are also given as gate signals.

FIG. 2 shows the configuration of electrodes when the display section 9 is constructed of a liquid crystal display device. Note that although a common electrode is actually arranged opposite to the above electrode, the common electrode is omitted from the drawing.

91a, 91b, . . . are numerical date electrodes formed over multiple rows and columns, and are connected by leads and connected to the lead-out electrode terminal 13 at the end of the electrode substrate 12. . The connections between the date numeric electrodes using the leads are as follows: in the row direction, between numbers 5 and 6, between numbers 11 and 12,
Connections are made except between numbers 17 and 18, and display electrodes of the map display body 95 described above are arranged between each of these two numbers. However, the Sunday display body 92 has the date numerical electrodes 91a, 91
It is composed of seven "SUN" displaying elements 92a arranged horizontally in a row corresponding to each column of b..., and each element 92a is connected to an electrode terminal 14a. The digital display 93 includes four-digit number segments 93a to 93v and an AM/PM display 93.
x, and a delimiter display segment 93w is provided between the second and third digits.
These numerical segments 93a-93v, AM.
PM display body 93x and separator display body segment 9
3w is connected to lead-out electrode terminals 15a to 15x arranged on the upper end of the electrode substrate 12 via leads. In addition, the region display body 94, for example, in accordance with the map display body 95, at longitudes corresponding to the cities “London,” “New Delhi,” “Tokyo,” “Honolulu,” “San Francisco,” and “New York.”
Segments 94 arranged horizontally above the map
a to 94f, and are connected to lead-out electrode terminals 16a to 16f via leads.
Further, the map display body 95 is connected to the lead-out electrode terminal 17 via a lead.

In such a configuration, when setting the time, the switch _S1 is operated on and off while the binary flip-flop 11 is in a reset state, a predetermined region is specified in the region counter 7, and the time of the predetermined region is set. Set. At this time, since the output signal from the flip-flop 11 is being sent to the display switching circuit 4, only the gate circuits 43 and 44 are opened, and only the hour and minute time display signals and the area designation signal are displayed on the display section 9. Further, from the side output terminal of the flip-flop 11, a drive signal for displaying a map is directly supplied. Therefore, as shown in FIG. 3A, the time of "New Deli" is displayed as 10:58 a.m. If the operation of switch S ₁ gives a signal to the region counter 7, for example, the region display is changed to "Tokyo".
When switched to , the time difference signal between "New Delhi" and "Tokyo" is given from the time difference generating circuit 8 to the counting circuit, which adds the time difference, and the area designation signal designates "Tokyo". , the time of 2:58 pm in "Tokyo" is displayed as shown in FIG. 3B. In this way, areas can be designated in sequence.

Further, when the flip-flop 11 is set to the set state by the operation of the switch _S2 , the output signal from the set output terminal Q is transferred to the AND circuit 41 of the display switching circuit 4.
and 42 gates are opened, and the AND circuit 41
and 42 gates are opened, and the AND circuit 41
and 42, the detection data of the reference day of the week detection circuit 5 and the clock information of the month and day are sent to the Sunday display body 92, respectively.
and is given to the digital display body 93, and
A display drive signal is directly applied to the calendar display body 91. Therefore, as shown in FIG. 4, May 25th is displayed and a calendar table for May is displayed.

In the above embodiment, the area display body 94 is provided above the map, but a dot display or the like may be provided at each city on the map. Further, this may be displayed blinking. Naturally, the number of regions is not limited to six as in the above embodiment. Further, although the entire world map is displayed here, a regional map may be partially displayed. Further, in this embodiment, a map display such as a world map is provided in connection with the world clock, but a combination of a map display and a calendar table may also be used. In addition, the calendar table is 29,
30 and 31 may be configured so that the display can be controlled separately, and the display may be controlled separately for the large month, the small month, the normal year of February, and the long year.

As detailed above, this invention provides at least one
Among the date numeric electrodes in which the numbers 1 to 31, which are the dates of the month, are arranged in multiple rows and columns, connect with leads between the two predetermined numeric electrodes. Since the map electrodes for displaying topography are formed in the gaps, the calendar display and the map display, which occupy a relatively large display area, can be displayed in almost the same display area, which not only makes it possible to downsize the entire display section, but also Since both can be selectively displayed, it becomes extremely easy to see and can be incorporated into a wristwatch, for example. Furthermore, since the map is displayed optically, unlike conventional printed maps, there is no risk of the map being smudged or destroyed even if used for a long time.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram showing an embodiment of the present invention, FIG. 2 is a front view showing the electrode structure of the display section,
FIGS. 3a, 3b and 4 are front views showing each display state of the display section. DESCRIPTION OF SYMBOLS 1... Oscillator, 2... Frequency dividing circuit, 3... Counting circuit, 4... Display switching circuit, 5... Reference day of the week detection circuit, 7... Regional counter, 8... Time difference generation circuit, 9... ... Display section, 91 ... Calendar display body, 9
1a, 91b...Numeric electrode for date, 92...Sunday display, 93...Digital display, 94...Region display, 95...Map display, 12...Substrate.

Claims (1)

[Claims] 1. An electrode substrate, a numerical electrode body for the date of at least one month formed on the electrode substrate in multiple rows and columns, and a plurality of numerical electrode bodies for the date in the row direction of the numerical electrode body for the date. A topography formed between a lead electrode body formed to connect other than the predetermined two numerical date electrode bodies and the predetermined two numerical date electrodes where the lead electrode body is not formed. 1. An electronic display device comprising: a map electrode body for display; and means for selectively supplying a display drive signal to the date numerical electrode body and the map electrode body for switching display.