http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100391223-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-3001 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-586 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-42 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-13 |
| filingDate | 1993-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2003-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2003-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100391223-B1 |
| titleOfInvention | Liquid crystal composition |
| abstract | The present invention provides a high voltage maintenance ratio of a liquid crystal device when used as a liquid crystal material for a liquid crystal device, which is composed of a liquid crystal mixture of a chiral compound having the adsorption force for the achiral liquid crystal compound of formula (IV) and the adsorbent is less than or equal to that of the achiral compound. And even when purified with an adsorbent or the like, the invention relates to a liquid crystal composition in which the spiral pitch hardly changes:n n n n n n n n In the above formula,n n n 6-membered plates A ', B', C 'and D' are each independently trans-1,4-cyclohexylene, 1-cyclohexene-1,4-diyl or 1,4-phenylene,n n n g, h and i are each 0 or 1, where (g + h + i) is at least 1,n n n X ', Y' and Z 'are each independently a single bond, -CH 2 -CH 2- , -CH = CH- or -C≡C-,n n n R 7 is CmH 2n + 1- , CnH 2n-1 -or CnH 2n + 1 OC k H 2k- ,n n n R 8 is CmH 2m + 1- , CmH 2m + 1 O-, F, CHF 2 O- or CF 3 O-,n n n n and m are each independently an integer of 1 to 18,n n n k is an integer from 1 to 17, n + k is an integer from 2 to 18,n n n At least one of X ', Y' and Z 'is a single bond,n n n If ring D 'is 1,4-phenylene and R 8 is F, CHF 2 O- or CF 3 O-, the H atom in the ortho position relative to R 8 may be replaced by an F atom,n n n When g is 1 and ring B 'or C' is 1,4-phenylene, the H atom at the side chain position of the plate may be replaced by an F atom.n n n The liquid crystal composition is a highly reliable liquid crystal material having a high voltage maintenance ratio without extending the helical pitch even when purified with an adsorbent or the like. |
| priorityDate | 1992-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.