Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2005-08-30
2005-08-30
Pwu, Jeffrey (Department: 3628)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S097000, C349S098000, C349S114000, C349S115000
Reexamination Certificate
active
06937301
ABSTRACT:
A watch unit having a time-displaying section, including a reflection-type polarizing film14disposed on an upper portion or a lower portion of the time-displaying section or a portion comprising a part of the time-displaying section, an optical modulation section which varies the ratio of a transmission axis to a reflection axis of the reflection-type polarizing film14, and a shutter function to shield a portion of or all of the watch unit having the time-display section by varying the reflection intensity and the transmission intensity in relation to the light incident direction using the reflection-type polarinzing film14and the optical modulation section, to enhance the appearance and to improve the versatility of the watch unit.
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Akiba Yuichi
Akiyama Takashi
Hoshino Koichi
Ide Masafumi
Kikuchi Masami
Citizen Watch Co. Ltd.
Pwu Jeffrey
Westerman, Hattori, Daniels and Adrian LLP
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