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1. 发明专利

JP2002243878A SEQUENTIAL CONTROL METHOD FOR DISPLAY DEVICE EQUIPPED WITH TWO OVERLAPPED DISPLAY ELEMENTS 审中-公开
公开(公告)号：JP2002243878A
公开(公告)日：2002-08-28
申请号：JP2001377022
申请日：2001-12-11
申请人： EBAUCHESFABRIK ETA AG
发明人： GILOMEN BEAT
IPC分类号： G02F1/1335 , G02F1/1347 , G04C3/00 , G04G9/00
摘要： PROBLEM TO BE SOLVED: To provide a control method for an analog and digital watch in which the difference between an existing analog watch and an existing digital watch can be discriminated at a glance by a potential customer. SOLUTION: The sequential control method for a display assembly is provided with overlapped two of an upper-part display device (22) and a lower-part display device (24). The device (22) comprises at least a liquid crystal display cell (26), it becomes transparent in a first state so as to make the device (24) visible, it displays a data item in a second state, it becomes opaque so as to become a reflection type, and it covers the device (24) at least partly. A control means supplies a control voltage, and it shifts the device (22) to the second state from the first state and to the first state from the second state. When the display assembly is set to an operating state that the device (22) is automatically changed over to a state that the device (22) becomes transparent, or to a state that the device (22) becomes opaque so as to become the reflection type, the display assembly is automatically shifted to a mode in which data is displayed by the device (22), and to a mode in which data is displayed by the device (24).

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