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. 06, 2001
Filed:
Jul. 12, 2000
Akira Tamatani, Kumamoto, JP;
Advanced Display Inc., Kikuchi-gun, JP;
Abstract
The present invention is directed to a liquid crystal display including: an active matrix liquid crystal display element; and a surface light source; the liquid crystal display element including a liquid crystal substance sandwiched between an electrode substrate and an counter substrate via alignment films; the electrode substrate having a surface formed with a matrix of pixel portion having switching elements surrounded by a plurality of image signal lines and scanning signal lines; wherein a transmittance distribution of the liquid crystal display element reduces a brightness distribution inconsistency in the surface light source; or more specifically; wherein Xmax is a maximum brightness value in a display region of the surface light source, Xmin is a minimum brightness value thereof, Zmax is a maximum brightness value of the liquid crystal display, and Zmin is a minimum brightness value thereof; and wherein the expression of Xmax/Xmin>Zmax/Zmin is satisfied.