Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2005-06-07
2010-06-22
Wu, Shean C (Department: 1795)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S143000, C428S001250, C428S001260, C252S501100, C252S600000
Reexamination Certificate
active
07742138
ABSTRACT:
It is an object to provide a liquid crystal display which reduces unsatisfactory display caused by distorted initial alignment direction in a liquid crystal alignment layer for IPS type displays, realizes stable liquid crystal alignment, is high in mass-productivity, and produces high-quality images of increased contrast ratio. The liquid crystal display contains alignment layers109placed between a pair of substrates101and102, at least one of which is transparent, liquid crystal layer110′ sealed between the alignment layers, common electrode103and source electrode105for applying an electrical field to the liquid crystal layer, thin-film transistors connected to each of these electrodes, polarizer plate114provided on at least one of the substrates, wherein at least one of the alignment layers109is composed of a photo-reactive polyimide and/or polyamic acid which can be provided with a liquid crystal alignment capacity by being irradiated with essentially linearly polarized light.
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Matsumori Masaki
Matsuyama Shigeru
Tomioka Yasushi
Hitachi Displays Ltd.
Hogan & Lovells US LLP
Wu Shean C
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