Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2007-11-13
2007-11-13
Schechter, Andrew (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S138000, C349S139000, C349S156000
Reexamination Certificate
active
10935750
ABSTRACT:
A columnar spacer is interposed between a first substrate and a second substrate for holding a liquid crystal layer between them. The columnar spacer is formed in such a manner as to have an area superposed, in each pixel, with the contact hole formed in the first substrate and an area not superposed with said contact hole. Even in the case where the first and second substrates attached to each other are displaced from each other, the columnar spacer never falls in the contact hole and a desired cell gap can be positively secured. Also, since the columnar spacer is not located in the contact hole, no margin for substrate attachment is required to form the contact hole in the first substrate, thereby improving the open area ratio effective for display for improved display quality.
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Machine translation of JP 2000-122071 to Yamada et al., made of record by the applicant.
Kikuchi Katsuhiro
Mori Jun-ichi
Uemura Shigeru
Yoshida Masahiro
Schechter Andrew
Sharp Kabushiki Kaisha
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