Invention Grant
- Patent Title: Translucent substrate, process for producing the same, organic LED element and process for producing the same
- Patent Title (中): 半透明基板，制造方法，有机LED元件及其制造方法
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Application No.: US13195146Application Date: 2011-08-01
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Publication No.: US08427045B2Publication Date: 2013-04-23
- Inventor: Nobuhiro Nakamura , Kazutaka Hayashi , Kenji Imakita , Hiroyuki Ohkawa , Hidefumi Odaka , Nao Ishibashi
- Applicant: Nobuhiro Nakamura , Kazutaka Hayashi , Kenji Imakita , Hiroyuki Ohkawa , Hidefumi Odaka , Nao Ishibashi
- Applicant Address: JP Tokyo
- Assignee: Asahi Glass Company, Limited
- Current Assignee: Asahi Glass Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland & Neustadt, L.L.P.
- Priority: JP2007-195797 20070727; JP2007-241287 20070918
- Main IPC: H01L51/50
- IPC: H01L51/50
Abstract:
The present invention provides an organic LED element in which the extraction efficiency is improved up to 80% of emitted light. Further, the invention relates to an electrode-attached translucent substrate having a translucent substrate, a scattering layer formed over the glass substrate and containing a base material having a first refractive index for at least one wavelength of wavelengths of emitted light of an organic LED element and a plurality of scattering materials positioned in the base material and having a second refractive index different from that of the base material, and a translucent electrode formed over the scattering layer and having a third refractive index equal to or lower than the first refractive index, in which distribution of the scattering materials in the scattering layer decreases from the inside of the scattering layer toward the translucent electrode.
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