| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_adcb1d1f62d76e9ab6c047566e2e8ce8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_50c239276d99afc1c9c8159bcfd93bfe
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_066697c61cd41695e27c4a9a5f7e26f5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_54b9ec6b03eb6c9f5ae1e43ae4ff51b8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F2413-105 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N9-3167
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N9-3105
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03B21-2073
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-133632 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-1335 |
| filingDate |
2006-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_151ea7c0bfc2d4c92fcdc6fc5168c364
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db628fe351999f5af26f0d140f6e8b75
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4763bdac699d090e322329bcd4d761a8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_54bc4db31df1a991c71ed5ae7c2c7126 |
| publicationDate |
2007-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2007040970-A1 |
| titleOfInvention |
Contrast ratio improving method for liquid crystal projector |
| abstract |
The invention provides a method for improving the contrast ratio of the display image projected on a screen from a liquid crystal projector that comprises at least a light source, an electrode-having, twisted nematic liquid crystal cell comprising at least one nematic liquid crystal, and two polarizers disposed so that the liquid crystal cell is sandwiched between them, which is characterized in that at least two HBLC optical films are so arrayed between the polarizers that the slow axes of the films are approximately perpendicular to each other so as not to cause a retardation in the direction normal to the film surfaces; and provides a liquid crystal projector that uses the improving method. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8199288-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008231766-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011090432-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006202164-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7880838-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7948593-B2 |
| priorityDate |
2002-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |