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:
May. 13, 2014
Filed:
Nov. 05, 2009
Yoshiaki Hashimoto, Kanagawa, JP;
Yoshiaki Hashimoto, Kanagawa, JP;
NLT Technologies, Ltd., Kanagawa, JP;
Abstract
A liquid crystal display device includes a TFT substrate, a counter substrate, more than one columnar spacer formed on the counter substrate side, a step film of convex shape formed onto the TFT substrate side and arranged at a position facing the columnar spacer, and a liquid crystal sealed between the TFT substrate and the counter substrate, wherein a difference between a central coordinate of the step film and a central coordinate of the columnar spacer seen in a normal direction of a display surface of the liquid crystal display device varies with standard deviation σ of no smaller than 3 μm in at least one direction within an appropriate range in a display area of the display surface.