Organic luminescence device with anti-reflection layer and organic luminescence device package

• US 7,187,121 B2
• Filed: 04/06/2005
• Issued: 03/06/2007
• Est. Priority Date: 04/09/2002
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Hasegawa, Toshinori, Kobayashi, Shuichi, Hoshi, Hikaru
• Primary Examiner(s): Patel; Nimeshkumar D.
• Assistant Examiner(s): QUARTERMAN, KEVIN J
• Application Number:
  US11/099,623
• Publication Number:
  US 20050174046A1
• Time in Patent Office: 699 Days
• Field of Search: 313/504, 313/501, 313/506, 313/112, 313/609
• US Class Current: 313/504
• CPC Class Codes: H10K 2102/3026 Top emission
• CPC Class Codes: H10K 50/841 Self-supporting sealing arrangements
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 50/85 Arrangements for extracting light from the devices
• CPC Class Codes: H10K 50/86 Arrangements for improving contrast, e.g. preventing reflection of ambient light
• CPC Class Codes: H10K 50/865 comprising light absorbing layers, e.g. light-blocking layers
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 59/873 Encapsulations
• CPC Class Codes: H10K 59/875 Arrangements for extracting light from the devices
• CPC Class Codes: H10K 59/8791 Arrangements for improving contrast, e.g. preventing reflection of ambient light
• CPC Class Codes: H10K 59/8792 comprising light absorbing layers, e.g. black layers

Abstract

For realizing an organic luminescence device of a high efficiency, the present invention provides an organic luminescence device having an anti-reflection film on a transparent electrode or on a moisture prevention layer.

Claims

1. An organic luminescence device 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;

(b) an anti-reflection layer provided on said transparent, second electrode and in contact therewith,

(c) an organic layer formed between said pair of electrodes; and

(d) a transparent cover member opposed to the transparent second electrode across a gaseous layer, wherein said anti-reflection layer has a refractive index which is between the refractive indexes of said transparent second electrode and the gas of said gaseous layer.

2. The organic luminescence device according to claim 1, wherein said first electrode provided on the substrate side is capable of intercepting external light and preventing reflection of external light.

3. The organic luminescence device according to claim 1, wherein the anti-reflection layer has a refractive index less than the second electrode.

4. The organic luminescence device according to claim 1, wherein the anti-reflection layer is a single layer.

5. The organic luminescence device according to claim 1, wherein the anti-reflection layer is multi-layers.