| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a watch device which can improve the external appearance and the design, by a built-in solar cell having a good light-receiving property compared with the conventional solar cell, in which a dial can be freely decorated, compared with the conventional. <P>SOLUTION: The wristwatch 10 includes the dial 14 and a watch module M inside a case body 11. The spherical solar cell 1 having a semiconductor spherical crystal (for example, p-type spherical silicon 1b and n-type diffusion layer 1c), a pair of electrodes (for example, positive electrode 1e and negative electrode 1f), and so forth is provided on the dial 14. <P>COPYRIGHT: (C)2004,JPO</p> |
