Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2005-08-16
2005-08-16
Font, Frank G. (Department: 2883)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S114000
Reexamination Certificate
active
06930738
ABSTRACT:
A liquid crystal display device is made by disposing an STN cell (16) in which nematic liquid crystal (6) having a twist angle in the range from 180° to 270° is filled and sandwiched between a first substrate (1) having a first electrode (3) and a second substrate (2) having a second electrode (4) at the center, providing a retardation film (13) and an absorption-type polarizing film (8) outside the second substrate (2) in order, and providing a reflection-type polarizing film (10) and a light absorbing film (11) outside the first substrate (1) in order. This enables a metallic silver background due to the reflected light by the reflection-type polarizing film (10) and display in black or in color by light passing through the reflection-type polarizing film (10) being absorbed in the light absorbing film (11) or only light of specific color being reflected.
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Akiyama Takashi
Ide Masafumi
Kaneko Yasushi
Citizen Watch Co. Ltd.
Rude Timothy
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