JPS6133148B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic wristwatch with a world map.

Conventionally, among table clocks, wall clocks, and the like, world clocks have been commercialized that are equipped with a world map and can display the time in various parts of the world. However, this type of world clock has the disadvantage that not only is the device itself large because it is equipped with a world map, but the world map is photographed or printed, and the colors may fade or become dirty with use over time. It was hot.

In addition, as mentioned above, the device itself is large, so it is difficult to incorporate it into a wristwatch, etc., and even if it were to be incorporated, the world map and time display would have to be placed parallel to each other, so the original function of the wristwatch would not be possible. The disadvantage is that the size of the display section for a certain time display is limited, which not only makes it difficult to read the time, but also makes the watch inferior in design if the time display section is composed of hands, for example. It was hot.

The present invention was made in view of the above-mentioned circumstances, and its purpose is to not only display a map without increasing the size of the wristwatch itself even if it is a pointer-type wristwatch, but also to display a map without increasing the size of the wristwatch itself. It is an object of the present invention to provide an electronic wristwatch that can also improve the effectiveness of the electronic wristwatch.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, 1 is a wristwatch case, and 2 is a liquid crystal display device that constitutes a watch dial provided inside the case 1. This liquid crystal display panel 2 is installed inside the case 1. It is attached to the housing 3. Reference numeral 4 denotes a circuit board fixed to the housing 3 at a dial portion of the housing 3, that is, located below the liquid crystal display device 2;
This circuit board 4 has an LSI 5 etc. attached thereto. The liquid crystal display device 2 has segment electrodes, which will be described later, formed on the lower surface of an upper transparent substrate (glass plate) 6, and the lower transparent substrate 8, which has a common electrode 9 formed on its upper surface, and the upper transparent substrate 6 are connected by a spacer 1.
0, a liquid crystal 11 is sealed inside, and a reflection plate 12 is bonded to the lower surface of the lower transparent substrate 8. The structure of this liquid crystal display device is similar to the well-known TN type (twisted nematic type) liquid crystal display device, and each substrate 6, 8
An insulating film whose surface is subjected to an orientation treatment is formed on the electrode formation surface, and a polarizing plate is attached to the upper surface of the upper transparent substrate 6 and the lower surface (between the reflective plate 12) of the lower transparent substrate 8, respectively. (not shown). Also 1
Reference numeral 3 denotes a holding member for fixing the liquid crystal display device 2 to the housing 3, and the liquid crystal display device 2 has an interconnector 1 that connects lead terminals formed on the upper transparent substrate 6 and terminals on the circuit board 4.
4 on the circuit board 4, and is fixed to the housing 3 via the holding member 13.

On the other hand, 15 is a through hole provided in the center of the liquid crystal display device 2, and this through hole 15 is formed by drilling holes in the upper and lower substrates 6 and 8 of the liquid crystal display device 2, and between the substrates 6 and 8. A ring-shaped spacer 10a is provided to seal the liquid crystal enclosure. Also, 1
6 and 17 are hour and minute hands located above the liquid crystal display device 2, and these hour and minute hands 16 and 17 are connected to the hour hand drive shaft 1 inserted into the through hole 15.
8 and a minute hand drive shaft 19 inserted into the hour hand drive shaft 18, respectively.

Further, in the liquid crystal display device 2, A is a world map, and 20 is a digital information display section provided in the ocean area on the map. The digital information display unit 20 displays information, such as time information, for each region on the map A displayed by the liquid crystal display device 2. 21,
21... is an instruction display section indicating which area on the map A the time information displayed on the digital information display section 20 corresponds to, and these display sections 21, 21...
are provided along one side of the liquid crystal display device 2, and display each city name 2 on the map A printed on the case 1.
It is provided so as to correspond to 3. The world map 7, the digital information display section 20, and the instruction display section 21 are formed as segment electrodes on the lower surface of the transparent substrate 6 of the liquid crystal display device 2. Further, 24 is an external map display operation switch for starting or stopping the world map display operation of the liquid crystal display device 2, and 25 is for sequentially selecting cities and switching the time displayed on the digital information display section 20 in a step manner. These are external operation switches for changing display information, and these switches 24 and 25 are provided on the outer surface of the watch case 1, respectively.

The map A displayed on the dial surface constituted by the liquid crystal display device 2 is displayed or erased by switching the external operation switch 24 for map display, and the map A is displayed on the dial surface formed by the liquid crystal display device 2.
The time of each city on the map displayed on the map is sequentially switched by operating the display information switching external operation switch 25. In this case, which region (city) is the time displayed on the digital information display section 20?
The time can be easily determined by turning on one of the indicator indicators 21 of the display section 21. In addition, the time of the place where this watch is used is always displayed by the hands (hour hand 16 and minute hand 17), and therefore the time difference between the place of use and the area where the time is displayed on the digital information display section 20 can be easily determined. You can know. In this way, in the electronic wristwatch of the above embodiment, since the liquid crystal display device 2 that displays the map A is placed overlapping the hands, the device can be made smaller despite displaying the world map, and Since the map A displayed on the dial surface is displayed optically by the liquid crystal display device 2, the color will not fade unlike a printed one, and the details will remain clear even after long-term use. Never loses brightness. Furthermore, since the displayed map A can be deleted at will, it can also be deleted when the function as a world clock is not required.

In the above embodiment, the time is displayed on the digital information display section 20, but this display section 20 displays not only the time but also the fare (for example, the fare between the place of use and each area on the map A). airfare)
, postal charges, telephone charges, etc. may be displayed in a switching manner, and the display section 21 indicating which area the information displayed on the digital information display section 20 corresponds to may be displayed in accordance with the instructions in the above embodiment. The display body 21 is not limited to being selectively displayed, and may be, for example, displaying city names in characters on a map. Further, the device for displaying this world map is not limited to a liquid crystal display device, but may also be an optical display device using electrochromic, electrophoretic, or the like.

The present invention relates to an electronic wristwatch that displays the time by rotating hands, and an optical display device that displays a map using map electrodes arranged in a position overlapping with the hands and shaped like topography, and the optical display device that displays the map using the optical display device. According to the present invention, since the map is displayed at a position overlapping the pointer using an optical display device, the map is Not only can it be used effectively, but the watch can also be made extremely compact.Furthermore, it can display a detailed world map without fading over a long period of time, and when the map is not needed, it can be Stop the map display using the external operation switch,
It can also improve your appearance.

[Brief explanation of the drawing]

FIGS. 1 and 2 are an external view and an enlarged sectional view of the internal structure of an embodiment of the present invention. 1...Watch case, 2...Liquid crystal display device, 15
...Through hole, 18...Hour hand drive shaft, 19...Minute hand drive shaft, 20...Digital information display section, 24
...External operation switch for map display, 25...External operation switch for switching display information, A...Map.

Claims (1)

[Claims] 1. In an electronic wristwatch that displays the time by rotating the hands, a map is displayed using a map electrode shaped like the topography placed overlapping the hands, and each city on the map is displayed on a digital display section provided in a part of the electronic wristwatch. 1. An electronic wristwatch comprising: an optical display device that switches and displays the time; and an external operation switch that stops the optical display device from displaying the map.