| US 7,332,859 B2 | ||
| Organic luminescence device with anti-reflection layer and organic luminescence device package | ||
| Toshinori Hasegawa, Kanagawa (Japan); Shuichi Kobayashi, Kanagawa (Japan); and Hikaru Hoshi, Tochigi (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Sep. 22, 2005, as Appl. No. 11/231,851. | ||
| Application 11/231851 is a division of application No. 11/099623, filed on Apr. 06, 2005, granted, now 7,187,121. | ||
| Application 11/099623 is a division of application No. 10/406273, filed on Apr. 04, 2003, abandoned. | ||
| Claims priority of application No. 2002-106903 (JP), filed on Apr. 09, 2002; application No. 2002-106904 (JP), filed on Apr. 09, 2002; and application No. 2002-106905 (JP), filed on Apr. 09, 2002. | ||
| Prior Publication US 2006/0017374 A1, Jan. 26, 2006 | ||
| Int. Cl. H01J 1/62 (2006.01); H01J 63/04 (2006.01) | ||
| U.S. Cl. 313—504 [313/498; 313/506; 313/512] | 13 Claims |
| 1. A top-emission organic luminescence device having a light-emitting layer comprising:
(a) a pair of mutually opposed electrodes, wherein said pair of electrodes are a first electrode provided on a substrate and
a transparent second electrode disposed farther from said substrate than said first electrode;
(b) an anti-reflection layer provided on said transparent second electrode and in contact therewith at an interface therebetween,
wherein the anti-reflection layer has a refractive index less than the transparent second electrode, and a side of the anti-reflection
layer opposite to the interface is in contact with an external environment, and the thickness of said anti-reflection layer
satisfies the following equation:
d=λ/4n
where d represents the thickness of said anti-reflection layer, λ represents a wavelength of light emitted from the light-emitting
layer, and n represents the refractive index of said anti-reflection layer and
(c) an organic light-emitting layer formed between said pair of electrodes, wherein the reflection of the light emitted from
the light-emitting layer at the interface of the side of the transparent second electrode opposite to the organic light emitting
layer is prevented by said anti-reflection layer.
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