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:
Aug. 08, 2006
Filed:
Mar. 15, 2004
Christopher Barnardo, Bishops Stortford, GB;
Richard Blakeney, Saxon Way, GB;
Christopher James Newton Fryer, Cottenham, GB;
Frank Tyldesley, Saxon Way, GB;
Christopher Barnardo, Bishops Stortford, GB;
Richard Blakeney, Saxon Way, GB;
Christopher James Newton Fryer, Cottenham, GB;
Frank Tyldesley, Saxon Way, GB;
Pelikon Limited, Caerphilly, GB;
Abstract
Certain materials are electroluminescent, and this electroluminescent effect has been used in the construction of backlights for displays. Such a backlight commonly consists of a transparent front layer () known as the substrate carrying over its rear face a transparent electrically-conductive film () forming the backlight's front electrode and covered by a layer of electroluminescent/phosphor material () over the rear face of which is a high-dielectric dielectric layer () bearing on its rear face a conductive film () forming the back electrode. The whole is positioned behind a mask () that defines whatever characters the display is to show. This use of a mask has some disadvantages, some of which can be overcome by utilizing an array of suitably shaped individual electrodes () instead of a continuous one; however, this itself has drawbacks, since the lead () to each electrode acts as an electrode in its own right, activating the phosphor to show faint but distracting additional illumination.