Title:
CHOLESTERIC LIQUID CRYSTAL OPTICAL BODIES AND METHODS OF MANUFACTURE AND USE
Document Type and Number:
WIPO Patent Application WO2003027761
Kind Code:
A3
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.
Inventors:
BOWLEY CHRISTOPHER C
EBIHARA IKUKO
GILLIGAN GREGORY E
POKORNY RICHARD J
RADCLIFFE MARC D
RAO PRABHAKARA S
WATSON PHILIP E
EBIHARA IKUKO
GILLIGAN GREGORY E
POKORNY RICHARD J
RADCLIFFE MARC D
RAO PRABHAKARA S
WATSON PHILIP E
Application Number:
PCT/US2002/025033
Publication Date:
November 20, 2003
Filing Date:
August 07, 2002
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
International Classes:
G02B5/30; C09K19/02; C09K19/42; C09K19/58; G02F1/1335; (IPC1-7): G02F1/137; G02B5/30
Foreign References:
| US5061046A | 1991-10-29 | |||
| US3669525A | 1972-06-13 | |||
| US20010030720A1 | 2001-10-18 | |||
| US5847068A | 1998-12-08 |
Other References:
See also references of EP 1428065A2
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