JPS6142832B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device for an electronic timepiece that is used in the display section of an electronic timepiece and displays time and a map using an optical display means such as a liquid crystal or an electrochromic material.

2. Description of the Related Art World clocks are known that display a plurality of times with different time zones and clearly indicate in which region the displayed time is based on a world map. However, since this type of world clock uses a world map separately from the time display device, the device itself is extremely large and cannot be applied to small electronic timepieces such as wristwatches. Furthermore, the world map was printed and had the disadvantage of being stained or damaged after long-term use.

This invention was made in view of the above circumstances, and it is possible not only to display topography such as a world map using optical display means, but also to display time information such as time and date with limited visibility in a limited display area. It is an object of the present invention to provide a display device for an electronic timepiece that is configured to provide a good display.

Hereinafter, the present invention will be specifically explained based on an illustrated embodiment. In FIG. 1, 1 is an oscillator, and the signal from this oscillator 1 is divided into a period of 1 second 1D/S via a frequency divider circuit 2.
given to. In the above clock counting circuit 3, hours, minutes,
Seconds are counted, and hour and minute information of this clock information is provided to the decoder driver 4, and further sent to the digital display 51 of the display section 5 for digital display.

Further, the switch _S1 is a region designation switch, and when the region designation switch _S1 is turned on, its operation signal is given to the region counter 7 via the one shot circuit 6 as a signal for region designation. The region counter 7 supplies a data signal associated with region designation to the time difference generation circuit 8, and the time difference generation circuit 8 supplies an addend signal for the time difference to the counting circuit 3 each time the data signal changes. It's starting to become easier. Further, the data signal from the region counter 7 is decoded by the decoder driver 9, and is applied to the region designation display 52 via the AND circuit 10 as a signal for energizing the region designation display 52 of the display section 5. It will be done.

Further, S ₂ is a map display switch, and when the map display switch S ₂ is turned on, its operation signal is applied to the binary flip-flop 12 via the one-shot circuit 11 . A display drive signal is outputted from one output terminal Q of the binary flip-flop 12 for energizing a map segment display 53 that displays a world map in line drawings in the display section 5. ,
This signal is simultaneously supplied to one input terminal of the AND circuit 10 as a gate signal of the AND circuit 10.

FIG. 2 shows the structure of segment electrodes when the display section 5 is made of liquid crystal. Here, the digital display 51 is composed of 4-digit number segments 51a to 51w of 7-segment types arranged in a Japanese character shape, and also has 2nd and 3rd digits.
A delimiter display segment 51z for dividing hours and minutes is provided between the digits. The number segments 51a to 51w and the delimiter display segment 51z connect to the electrode terminals 14a to 14w and 1 arranged at the upper and lower ends of the electrode substrate 13 via leads.
4z respectively. Further, a map segment display body 53 is formed between the numerical segments 51a to 51w, and shows a world map in line in the gaps between the numerical segments 51a to 51w, for example, 53a.
-53f segments are formed inside and outside the 7-segment type digital display 51, and are connected to electrode terminals 15a-15f via leads, respectively. In addition, the region designation display bodies 52 are arranged in a horizontal line below the map, for example, at longitudes corresponding to the cities "London,""Beijing,""Tokyo,""Honolulu,""SanFrancisco," and "New York." The electrode terminals 16a to 16f are connected to electrode terminals 16a to 16f via leads, respectively.

In such a configuration, the on/off operation of the switch _S1 causes the region counter 7 to specify a predetermined region,
A time difference signal commensurate with this is generated by the time difference generation circuit 8 and added to the clock counting circuit 3, and a standard time signal for the area, for example, "Tokyo" is given from the clock counting circuit 3 to the decoder driver 4, and decoded. The signal causes the digital display 51 of the display section 5 to display the time as 12:38, as shown in FIG.

If it is desired to know in which region the time 12:38 is, the binary flip-flop 12 is set to the set state by turning on the switch _S2 . As a result, the map segment display body 53 is displayed, and the AND circuit 10
Since the gate signal is given to the area counter 7,
Based on the area designation signal given to the decoder driver 9 from
The decoded signal is transmitted to its corresponding area indicator segment, in this example segment 5.
Energize 2c. In this case, the segment 52c may be displayed blinking by supplying a 1P/S timing signal to the AND circuit 10. In this case, as shown in FIG. 4, it is possible to display the world map and the fact that the designated area is Tokyo at the same time as the time display.

In this way, in this application, the conventional 7
Since the segments of the segment-type digital display are arranged continuously inside and outside the digital display, the display device can be made smaller while still displaying the world map and time. It is possible.

Furthermore, the map display can be turned off or turned off as shown in FIG. 3, so that the time can be read extremely easily.

In the above embodiment, the specified area on the map may be indicated by, for example, displaying points in the city, or may be displayed by blinking. Furthermore, since it is displayed using the outline of the terrain, you can also enter the city name. Further, in these embodiments, the case where a liquid crystal is used for map display has been described, but it goes without saying that the map may be displayed using other optical display means such as electrochromism.

As described in detail above, in this invention, the topographical electrodes are arranged both inside and outside using the space between each of the 7-segment numerical segments, so that information such as time and date in the same display area can be displayed. Can be used together with calendar tables, etc.
It is possible to make it extremely compact. In addition, the map display using topographical electrodes can be turned off by operating a switch, so only the time can be displayed.
The time can be easily read, the display section can be used effectively, and unlike conventional printing means, there is no risk that the map display will be soiled or destroyed.

[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. 3 and 4 are front views of the display section for explaining the usage of the machine. DESCRIPTION OF SYMBOLS 1... Oscillator, 2... Frequency dividing circuit, 3... Counter counting circuit, 24... Calendar display, 51... Digital display, 52... Area designation display, 53... Map segment display, S ₁ ... Region designation switch, S ₂ ...Map display switch.

Claims (1)

[Claims] 1. In an electronic timepiece having a counting means for obtaining time information by counting a reference signal, and a display device for digitally displaying the time information obtained by the counting means, the display device has a Japanese character shape. A numerical segment consisting of 7 segments arranged in a Japanese character shape and a map segment for displaying a map are formed on the same substrate, and the map segment is formed on the same substrate as a numerical segment consisting of 7 segments arranged in the Japanese character shape. The display device is disposed between the segments, extending inside and outside the numerical segments made up of the seven segments, and transmits a segment drive signal for displaying the time information in response to the output of the counting means. a decoder driver circuit that supplies the numerical segments; a circuit that selectively supplies a display drive signal to the map segment to control turning on and off of the map display; and an operation switch that operates the selective supply of the control circuit. A display device for an electronic watch, characterized by comprising: