The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 13, 2007
Filed:
Sep. 08, 2004
Junichi Mori, Kyoto, JP;
Shigeru Uemura, Matsubara, JP;
Katsuhiro Kikuchi, Tenri, JP;
Masahiro Yoshida, Matsusaka, JP;
Junichi Mori, Kyoto, JP;
Shigeru Uemura, Matsubara, JP;
Katsuhiro Kikuchi, Tenri, JP;
Masahiro Yoshida, Matsusaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
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.