Organic electroluminescence device with a fluorine polymer layer

• US 5,427,858 A
• Filed: 06/29/1992
• Issued: 06/27/1995
• Est. Priority Date: 11/30/1990
• Status: Expired due to Term

• Current Assignee: Idemitsu Kosan Company Limited
• Original Assignee: Idemitsu Kosan Company Limited
• Inventors: Matsuura, Masahide, Nakamura, Hiroaki, Kusumoto, Tadashi
• Primary Examiner(s): Ryan, Patrick J.
• Assistant Examiner(s): Jewik, Patrick
• Application Number:
  US07/877,175
• Time in Patent Office: 1,093 Days
• Field of Search: 313/504, 313/505, 313/506, 313/511, 313/512, 313/503, 428/411.1, 428/209, 428/422, 428/917, 428/690, 428/421, 428/422, 118/716
• US Class Current: 428/421
• CPC Class Codes: H05B 33/04 Sealing arrangements , e.g. against humidity
• CPC Class Codes: H05B 33/10 Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
• CPC Class Codes: H10K 50/8426 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 50/846 comprising getter material or desiccants
• CPC Class Codes: H10K 59/872 Containers
• CPC Class Codes: H10K 59/8722 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 59/873 Encapsulations
• CPC Class Codes: H10K 59/874 including getter material or desiccant
• CPC Class Codes: Y10S 428/917 Electroluminescent
• CPC Class Codes: Y10T 428/24917 including metal layer
• CPC Class Codes: Y10T 428/3154 Of fluorinated addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31544 Addition polymer is perhalogenated

Abstract

Disclosed is a novel organic electroluminescent device which can be used as a pixel for graphic display, a pixel for a television image display device or a surface light source, and this novel organic electroluminescent device overcomes the conventional problem of an organic electroluminescent device having a laminated structure in which at least a light-emitting layer formed of a luminescent organic solid is placed between two mutually opposing electrodes, i.e., a short life, by having a film of an electrically insulating polymer compound as a protection layer provided on the outer surface of the above laminated structure. In producing the novel organic electroluminescent device disclosed herein, particularly preferably, the above laminated structure is prepared in a continuous vacuum environment as a series at least from the formation of the light-emitting layer to the formation of the electrode on the light-emitting layer directly or through the electron-injecting layer or the hole-injecting layer as a series, and then the above protection layer is formed in a vacuum environment continued from the above vacuum environment.

Claims