| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33c922e05f6133b7d72dbb849d77487d |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2323-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F2202-022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2323-027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2201-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2203-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2203-16 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1078
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L79-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1007
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1039
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-133305
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1042
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1067
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1082 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08 |
| filingDate |
2020-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f6fe0be87e5da2e6f591d3b46b246ff
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_77cb6ca06c7ffad279ac0531a389085f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c97c5df2c492a10cb7f62950e69d276e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3f57a88cdf7b9330f8ad56c568499fc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1848821e62bf896f6cf262208f85afb7 |
| publicationDate |
2021-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2021238351-A1 |
| titleOfInvention |
Polyimide precursor composition and polyimide film, substrate for display device, and optical device prepared by using same |
| abstract |
The present disclosure provides a polyimide film having improved heat resistance and refractive index by using a polyimide precursor composition comprising a diamine of Chemical Formula 1 and an acid dianhydride of Chemical Formula 2 as polymerization components, thereby reducing the difference in refractive index from the upper layer to improve bottom emission efficiency. |
| priorityDate |
2019-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |