摘要:
The present invention relates to polyimide photo alignment films for liquid crystal display devices comprising an aromatic tetracarboxylic dianhydride component containing 3,3',4,4'-benzophenone tetracarboxylic dianhydride and an aromatic diamine component containing at least one diamine of the group of formulae AI to AIII as given in the text. Further display devices and methods of their fabrication employing a photo alignment process are disclosed.
摘要:
The present invention relates to polyimide photo alignment films for liquid crystal display devices comprising an aromatic tetracarboxylic dianhydride component containing 3,3′,4,4′-benzophenone tetracarboxylic dianhydride and an aromatic diamine component containing at least one diamine of the group of fofmulae AI to AIII as given in the text. Further display devices and methods of their fabrication employing a photo alignment process are disclosed.
摘要:
A polyimide alignment film based on 2,2-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride and ortho-substituted aromatic diamines, such as 2,3,5,6-tetramethyl-p-phenylene diamine, 2,4,6-trimethyl-m-phenylene diamine and 1,5-diaminonaphthalene, providing high voltage holding ratio and high tilt angle when used in active matrix liquid crystal displays.
摘要:
A polyimide alignment film based on pyromellitic dianhydride and a bis(4-aminophenoxy) aromatic compound, such as 1,3-bis(4-aminophenoxy)benzene or 1,4-bis(4-aminophenoxy)benzene, providing low tilt angles of from to 2 degrees when used in liquid crystal displays.
摘要:
A polyimide alignment film based on pyromellitic dianhydride and a 2,2'-bis(perfluoroalkoxy)benzidine, as major components, for use in liquid crystal display devices.
摘要:
A polyimide alignment film based on pyromellitic dianhydride and a bis(4-aminophenoxy) aromatic compound, such as 1,3-bis(4-aminophenoxy)benzene or 1,4-bis(4-aminophenoxy)benzene, providing low tilt angles of from 1 to 2 degrees when used in liquid crystal displays.
摘要:
The substrates of the present invention comprise a polyimide base polymer derived at least in part from collinear monomers together with crankshaft monomers. The resulting polyimide material has been found to provide advantageous properties, particularly for electronics type applications.