Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2007-11-20
2007-11-20
Qi, Mike (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S175000, C349S185000
Reexamination Certificate
active
11066340
ABSTRACT:
An optical body includes a) first particles comprising a first cholesteric liquid crystal material and b) a second cholesteric liquid crystal material. The first particles and the second cholesteric liquid crystal material form a structure where the first cholesteric liquid crystal material has a pitch that is different than the second cholesteric liquid crystal material. In one example, the second cholesteric liquid crystal material is in the form of second particles. In another example, the first particles are dispersed in a matrix of the second cholesteric liquid crystal material. In other examples, the optical body has more than one layer. In addition, one or more additional cholesteric liquid crystal materials can be used in the optical body. These optical bodies can be used as a reflective polarizer and can be used in a display.
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Bowley Christopher C.
Ebihara Ikuko
Gilligan Gregory Edward
Pokorny Richard John
Radcliffe Marc Dudley
3M Innovative Properties Company
Chung David Y
Qi Mike
LandOfFree
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