| US 7,608,992 B2 | ||
| Device for displaying images on its front and back surfaces | ||
| Michiya Kobayashi, Ishikawa-ken (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan) | ||
| Appl. No. 10/526,007 PCT Filed Aug. 27, 2003, PCT No. PCT/JP03/10850 § 371(c)(1), (2), (4) Date Oct. 31, 2005, PCT Pub. No. WO2004/026001, PCT Pub. Date Mar. 25, 2004. |
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| Claims priority of application No. 2002-248942 (JP), filed on Aug. 28, 2002. | ||
| Prior Publication US 2006/0139268 A1, Jun. 29, 2006 | ||
| Int. Cl. G09G 3/36 (2006.01); G06F 3/03 (2006.01); H05B 33/00 (2006.01); G09G 3/02 (2006.01) | ||
| U.S. Cl. 313—503 [345/104; 345/87; 178/20.01; 313/504; 313/506; 313/512] | 20 Claims |
| 1. An organic electro-luminescence display device comprising:
an optically transparent substrate;
first pixels formed over the optically transparent substrate, each of the first pixels including a first organic electro-luminescence
element which includes a first optically transparent and electrically conductive layer, an organic layer including a light-emitting
layer, a second optically transparent and electrically conductive layer, and a first optically reflective and electrically
conductive layer in order,
the organic layer configured to transform electric energy applied between the first optically transparent and electrically
conductive layer and the second optically transparent and electrically conductive layer into light,
the first optically reflective and electrically conductive layer configured to reflect light, and
the first pixel configured to emit light towards a first surface of the organic electro-luminescence display device; and
second pixels formed over the optically transparent substrate, each of the second pixels including a second organic electro-luminescence
element which includes a second optically reflective and electrically conductive layer, the first optically transparent and
electrically conductive layer, the organic layer including the light-emitting layer, and the second optically transparent
and electrically conductive layer in order,
the second optically reflective and electrically conductive layer configured to reflect light, and
the second pixel configured to emit light towards a second surface of the organic electro-luminescence display device, the
second surface being opposite to the first surface.
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