Liquid crystal cells – elements and systems – Nominal manufacturing methods or post manufacturing... – Aligning liquid crystal with means other than alignment layer
Reexamination Certificate
2008-06-30
2010-10-12
Ullah, Akm E (Department: 2874)
Liquid crystal cells, elements and systems
Nominal manufacturing methods or post manufacturing...
Aligning liquid crystal with means other than alignment layer
C349S123000
Reexamination Certificate
active
07812922
ABSTRACT:
A liquid crystal aligning device (10) includes a UV light source (11), a plurality of liquid crystal cells (13), a mask (12), and a drive circuit (14) is described. The mask (12) is positioned between the liquid crystal cells, containing a mixture of a UV polyimide solution and liquid crystal molecules (131), and the UV light source. The drive circuit applies a voltage to the liquid crystal cells. The liquid crystal cells include a reflective area (13a) and a transmissive area (13b), and after exposing the liquid crystal cells to the UV light source and the voltage from the drive circuit, a pretilt angle of the liquid crystal molecules in the reflective area is larger than that in the transmissive area. Further, an alignment method for liquid crystal cells is also described.
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Chi Mei Communication Systems, Inc.
Reiss Steven M.
Ullah Akm E
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