Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shunepi Yamazaki0
Toru Takayama0
Date of Patent
February 28, 2006
0Patent Application Number
102603980
Date Filed
October 1, 2002
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A light emitting device capable of reducing degradation caused by dispersion of impurities such as moisture, oxygen, an alkaline metal, and an alkaline earth metal is provided. Specifically, a flexible light emitting device with an OLED formed on a plastic substrate is provided. In a light emitting device using a substrate, a circular polarizing plate has a single layer or two or more layers of barrier films formed of a compound or compounds selected from AlNXOY, AlXNY, and Al2O3, which is (are) capable of preventing oxygen and moisture from seeping into an organic light emitting layer of an OLED as well as preventing an alkaline metal, an alkaline earth metal, and other impurities from penetrating an active layer of a TFT.
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