Invention Grant
US08735912B2 Light emitting element, light emitting device using the light emitting element, and transparent substrate used in light emitting elements 有权
发光元件,使用该发光元件的发光元件,以及用于发光元件的透明基板

  • Patent Title: Light emitting element, light emitting device using the light emitting element, and transparent substrate used in light emitting elements
  • Patent Title (中): 发光元件,使用该发光元件的发光元件,以及用于发光元件的透明基板
  • Application No.: US14039517
    Application Date: 2013-09-27
  • Publication No.: US08735912B2
    Publication Date: 2014-05-27
  • Inventor: Hiroshi Sasaki
  • Applicant: Hitachi, Ltd.
  • Applicant Address: JP Tokyo
  • Assignee: Hitachi, Ltd.
  • Current Assignee: Hitachi, Ltd.
  • Current Assignee Address: JP Tokyo
  • Agency: Antonelli, Terry, Stout & Kraus, LLP.
  • Priority: JP2008-316343 20081212
  • Main IPC: H01L51/54
  • IPC: H01L51/54
Light emitting element, light emitting device using the light emitting element, and transparent substrate used in light emitting elements
Abstract:
In order to improve the light extraction efficiency of a light-emitting element, the light-emitting element includes: a light-emitting layer provided between an electrode and a transparent substrate; a particle layer provided between the light-emitting layer and the transparent substrate; and an adhesive layer provided between the light-emitting layer and the particle layer, the particle layer includes particles having a refraction index that is higher than a refraction index of the transparent substrate, the adhesive layer has a refraction index that is higher than the refraction index of the transparent substrate, and the particle layer has an average thickness that is less than an average particle size of the particles.
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