JPS5813355Y2 - electronic watch - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electronic timepiece having a light-receiving display.

Furthermore, each of the display bodies has two independent display functions.
The present invention relates to an electronic timepiece characterized in that it is composed of a light-receiving type display body having more than one layer.

The purpose of the present invention is to enrich the display contents of an electronic watch body.

Another purpose of the present invention is to switch and display different display contents with one touch.

Display bodies for electronic watches that display time using electrical signals include light-emitting type displays such as G-A and light-receiving type displays such as liquid crystal PLZT.

These have already been put to practical use as displays for electronic watches, and in particular, many types of liquid crystal display electronic watches are sold by various manufacturers.

Liquid crystal displays can display images with lower power consumption than light-emitting displays, and have been significantly improved in terms of lifespan, which has traditionally been a concern, and display characteristics have also been improved.

However, the contrast of the liquid crystal display depends on external light, and because it uses two linearly polarizing plates, it becomes dark, and its display performance is inferior to that of conventional hour, nine-minute, and hand displays.

This tendency is particularly strong in environments with little external light.

For this reason, the characters on the liquid crystal display are made as large as possible so that the person wearing the watch can easily tell the time and other information.

On the other hand, the demand for watch functions from people who wear watches is increasing year by year, and in addition to simple time display, there are also demands for display formats that display the 9th day of the month, day of the week, calendar, and even different display methods such as digital blogs. ing.

However, conventional structures in which the liquid crystal display has only one layer have been unable to satisfy these conflicting demands due to limitations in display area.

The present invention eliminates such drawbacks by making the display body a multi-layered structure, and provides an electronic timepiece that is easy to see, has a large amount of display content, and is free from design constraints.

This will be explained below using examples.

FIG. 1 is a schematic diagram of the electronic wristwatch of the present invention.

In the figure, 1 is a liquid crystal display for digital time display, 2 is a liquid crystal display below 1, and 3 is a switching button between the displays 1 and 2.

Figure 1-1.1-2 shows an example of the part 2 omitted in Figure 1. Figure 1-1 is an ablog time display body, 1-
Figure 2 shows the 59th day of the month.

It is a day of the week display.

The user can select the displayed content with a single touch using the 3 switching buttons.

FIG. 2 is a cross-sectional configuration diagram of FIG. 1.

In the figure, 4 is a cover glass, 5 is an ultraviolet cut filter 6
7 is a linear polarizing plate, 7 is borosilicate glass, 8 is a transparent tin oxide electrode fixed on 7, 9 is the liquid crystal shown in FIG.
0 is a spacer for liquid crystal inclusion.

Reference numeral 11 indicates a lower layer liquid crystal, and display is performed using transparent tin oxide electrodes 12.

13 is borosilicate glass, 14 is a linear polarizing plate having a phase difference of λ 6 and 7, and 15 is a reflecting plate.

The natural light input to the display panel becomes linearly polarized light after passing through the liquid crystals 9 and 11, and reaches the polarizing plate 14.

Since the polarizing plates 6 and 14 are in a crossed nicol state, if a phase difference occurs between the liquid crystals 6 and 14, it will become completely dark.

Here, if a phase difference of 6 and 1 is created in the liquid crystal λ of 6.14 in the absence of an electric field, the incident light becomes a parallel Nicol and is reflected as it is.

Ru.

Here, if an electric field is applied only to the upper layer liquid crystal to generate a phase difference of 7 from the no-λ electric field state, a cross nicol state of 6 will be obtained, and only the electric field applied segment will be displayed in black.

At this time, since the lower layer liquid crystal is in an electric fieldless state, light other than the electric field segment portion reaches the reflection plate as it is, so that only the upper layer time display portion can be displayed independently.

In addition, when displaying on the lower layer liquid crystal display, if an electric field is applied only to the lower layer segments while the upper layer liquid crystal is in a non-electric field state, a phase difference will occur between the linearly polarized light λ and i that have passed through the upper layer liquid crystal, so that only the lower layer segments can be displayed. Can be displayed independently.

In this way, it is possible to display the upper and lower layers arbitrarily, and the display area is substantially larger, which is advantageous in terms of design.
It is easy to see and various types of displays can be made using the switching button.

Note that although a two-layer structure was used in the embodiment, a display with two or more layers is also possible with a similar structure.

In addition to the digital time display, blog time display, digital time display, 9th day of the month, and day of the week display in the embodiment, it goes without saying that various combinations such as a calendar, Japanese/English/Sunday switching, etc. are possible.

Furthermore, in addition to liquid crystals, solid displays such as PLZT and electrochromic (electrochromic) displays can also be displayed with a similar configuration.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of the electronic watch of the present invention, and Figures 1-1 and 1
Figure 2 is a schematic diagram of part 2 in Figure 1. FIG. 2 shows a cross-sectional configuration diagram of FIG. 1. 1...Upper time display body, 2...Lower time display body, 3...Switch button, 4......
Cover glass, 5... Ultraviolet cut filter, 6... Linear polarizing plate, 730010. Upper layer borosilicate glass, 8... Upper layer transparent electrode, 9...
... Upper layer display liquid crystal, 10 ... Spacer, 1
DESCRIPTION OF SYMBOLS 1... Lower layer display liquid crystal, 12... Lower layer transparent electrode, 13... Lower layer borosilicate glass, 14
...Linear polarizing plate, 15...Reflector.

Claims (1)

[Scope of utility model registration request] 1. An electronic timepiece having a digital time function and an blog time function, characterized in that the digital time function and the blog time function are displayed on separate laminated light-receiving display bodies.