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:
Mar. 27, 2001
Filed:
Dec. 03, 1998
Kenji Fukushima, Saitama, JP;
Koji Umeda, Saitama, JP;
NEC Corporation, Tokyo, JP;
Abstract
An LCD (Liquid Crystal Display) device with a built-in electroluminescent body of the present invention includes a liquid crystal cell having an upper LCD substrate, a lower LCD substrate, and a liquid crystal layer formed between the upper LCD substrate and the lower LCD substrate by the injection of liquid crystal. An upper polarizer and a lower polarizer are respectively positioned on the top and the bottom of the liquid crystal cell. The electroluminescent body is arranged on the lower polarizer in the form of wirings for implementing back illumination. Dust and other impurities are prevented from penetrating the gap between an LCD and an EL (Electroluminescent Lamp) at the time of production. The lower polarizer plays the role of an EL substrate at the same time and thereby eliminates the need for an EL substrate and an affixing material. The LCD device can be produced by a minimum of steps.