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:
Feb. 01, 2005
Filed:
Jan. 15, 2001
Mikiko Matsuo, Nara, JP;
Tetsuya Satou, Kadoma, JP;
Hisanori Sugiura, Hirakata, JP;
Hitoshi Hisada, Toyonaka, JP;
Mikiko Matsuo, Nara, JP;
Tetsuya Satou, Kadoma, JP;
Hisanori Sugiura, Hirakata, JP;
Hitoshi Hisada, Toyonaka, JP;
Abstract
A thin film EL device is disclosed which includes a hole-injecting electrode, an electron-injecting electrode paired with the hole-injecting electrode, and a functional layer provided between the hole-injecting electrode and the electron-injecting electrode and emitting light by application of an electric field produced by the electrodes. The electron-injecting electrode contains at least two or more different metals having different work functions and a capturing substance for capturing a low work function metal, which is a metal other than a highest work function metal among the above-described metals, in its ionic state. This configuration prevents deterioration of the low work function metal, increasing the luminance and lifetime of the device.