Organic electro-luminescence device
AssigneeSeiko Epson Corporation
InventorsMasahiro Uchida, Osamu Yokoyama
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Abstract
The invention provides an organic electro-luminescence device which can be used as a cover glass of a wristwatch or the like by virtue of its transparency, produces a plurality of colors, illuminates and displays at the same time, and is formed by an easy method. A transparent organic EL device emitting yellow light is formed on a first surface of a substrate by being patterned so as to display characters. A transparent organic EL device emitting blue light is formed on a second surface by being patterned so as to generate light at the overall surface of the substrate.
Claims8
An organic electro-luminescence device, comprising:
- a light-transmissible and light-conductive substrate having a first surface and a second surface opposite the first surface;
- a first organic electro-luminescence element formed on the first surface of the substrate, including a first transparent anode, a first organic light-emitting layer, and a first cathode;
- and
- a second organic electro-luminescence element formed on the second surface of the substrate, including a second transparent anode, a second organic light-emitting layer, and a second cathode,
- the first organic electro-luminescence element emits a first display light, the second organic electro-luminescence element emits a second display light, the first display light being driven independently from and emitted irrespective of an output of the second display light, and the second display light being driven independently from and emitted irrespective of an output of the first display light.
Dependencies are inferred from the claim text.