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Wristwatch

A watch and storage technology, applied in the field of watches, can solve problems such as the decline of decoration, and achieve the effect of sufficient power supply, excellent energy saving effect, and power consumption restraint.

Inactive Publication Date: 2007-10-17
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Such watches include, for example, solar watches in which solar cells are arranged in a ring shape on the dial, but if used in a state where the solar cells are exposed, there is a problem that the decorative effect is reduced.

Method used

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Examples

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Embodiment Construction

[0046] Next, preferred embodiments of the present invention will be described with reference to the drawings.

[0047] FIG. 1 is a front view of a wristwatch 1 according to a first embodiment of the present invention, and FIG. 2 is a side sectional view of the wristwatch 1 . This wristwatch 1 includes a case (casing) 2 and a pair of bands 3 connected to the case 2 . The watch case 2 is formed of a metal material such as stainless steel or a resin material such as plastic resin, and has a through hole 2A therein for housing a movement 4 and a decorative plate 5 as shown in FIG. 2 .

[0048] A windshield glass 7 made of glass or resin is inserted into one end side (front side) of the through hole 2A of the watch case 2 with a packing 12 interposed therebetween. In addition, the back cover 9 is screwed to the other end side (front and back side) of the through hole 2A through the gasket 8 , and the airtightness of the inside of the watch case 2 is ensured by the back cover 9 and...

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PUM

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Abstract

A wristwatch having a display unit with memory that retains the display state of a last preceding display update operation, and a solar cell for displaying operating power at least to the display unit with memory during the display update operation. The display unit with memory and the solar cell render a dial or a display panel.

Description

technical field [0001] The present invention relates to a wristwatch, and more particularly, to a wristwatch equipped with a solar cell and a storage type display device. Background technique [0002] Fig. 15 is a front view and a cross-sectional view of a wristwatch displaying liquid crystals from an opening formed on a dial. [0003] In addition, as shown in FIG. 15 , it is known to dispose a liquid crystal panel 581 in an opening 500 formed in a dial 505 housed in a case 502 and illuminated with a backlight 580 from the back. A date watch 501 is displayed on the liquid crystal panel 581 . In addition, symbol 504 in FIG. 15 is the main body of the table module. [0004] However, since the liquid crystal panel 581 is driven by dynamic driving, it consumes a lot of power. In solar watches equipped with the liquid crystal panel 581 , a liquid crystal panel 581 with a narrow display area is used to suppress power consumption. Therefore, the liquid crystal panel 581 not only...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04C10/00G04G19/12G04G9/00G02F1/167G02F1/16757G02F1/1685
CPCG04R20/10G02F1/167G04G9/00G04R20/28G04C10/02G04R20/04G02F1/16757G02F1/1685
Inventor 井上胜豊关重彰
Owner SEIKO EPSON CORP
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