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US 2020/0028107 A1Published application
Organic el device
AssigneeNEC Lighting, Ltd.
InventorYoshikazu SAKAGUCHI
Life of this patent
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Abstract
The present invention provides an organic EL device that can ensure safety by automatic light emission of afterglow illumination even when the power is shut off due to a power failure, turning-off, or the like. The organic EL device (100) of the present invention includes a first substrate (110), an organic EL element part (120), and a charge storage part (130). The organic EL element part (120) and the charge storage part (130) are formed on one surface of the first substrate (110).
Claims10
An organic EL device comprising:
- a first substrate;
- an organic EL element part;
- and
- a charge storage part, wherein
- the organic EL element part and the charge storage part are formed on one surface of the first substrate.
2 more elements
Dependencies are inferred from the claim text.