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US 7,256,542 B2Granted
Method and device for detecting moisture in electroluminescence display devices
AssigneeAu Optronics Corporation
InventorsChun-Yi Chiu, Chih-Hung Su
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Abstract
Methods and devices are disclosed for detecting undesired moisture for a luminescence display device. A moisture detector is encapsulated between two shields with one or more display elements, and has a layer of metal placed in a predetermined location close to the display elements that does not affect an operation thereof, wherein the undesired moisture is detected by monitoring one or more moisture-affected material characteristics thereof.
Claims9
An organic luminescence display device comprising:
- one or more display elements;
- at least one moisture detector placed in a predetermined location close to the display elements, the moisture detector including a material layer comprising metal formed between a first electrode and a second electrode;
- and
- a first and second shields for encapsulating the display elements and the moisture detector therebetween,
- wherein the material layer between the first and second electrodes of the moisture detector has a resistance that varies with a moisture level of an environment in which the display device is located.
2 more elements
Dependencies are inferred from the claim text.