18527505. Light-Emitting Element simplified abstract (SEMICONDUCTOR ENERGY LABORATORY CO., LTD.)

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Light-Emitting Element

Organization Name

SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor(s)

Satoshi Seo of Sagamihara (JP)

Satoko Shitagaki of Isehara (JP)

Nobuharu Ohsawa of Zama (JP)

Hideko Inoue of Atsugi (JP)

Kunihiko Suzuki of Isehara (JP)

Light-Emitting Element - A simplified explanation of the abstract

This abstract first appeared for US patent application 18527505 titled 'Light-Emitting Element

The patent application describes a light-emitting element with a unique combination of organic compounds to enhance the emission spectrum.

  • The light-emitting element contains a phosphorescent compound, a first organic compound, and a second organic compound.
  • The first and second organic compounds form an exciplex, which contributes to the emission spectrum.
  • The emission spectrum of the exciplex overlaps with the absorption band of the phosphorescent compound.
  • The peak wavelength of the exciplex emission spectrum is longer than or equal to the peak wavelength of the absorption band of the phosphorescent compound.

Potential Applications:

  • This technology can be used in the development of high-efficiency OLED displays.
  • It may also find applications in lighting systems for energy-efficient illumination.

Problems Solved:

  • Enhances the efficiency and performance of light-emitting elements.
  • Improves the color quality and brightness of emitted light.

Benefits:

  • Increased energy efficiency in lighting applications.
  • Enhanced color rendering and brightness in display technologies.

Commercial Applications:

  • This technology could revolutionize the OLED display industry by improving performance and energy efficiency.

Questions about the technology: 1. How does the exciplex formation contribute to the emission spectrum? 2. What are the potential implications of this technology for the lighting industry?


Original Abstract Submitted

Provided is a light-emitting element which includes a light-emitting layer containing a phosphorescent compound, a first organic compound, and a second organic compound between a pair of electrodes. A combination of the first organic compound and the second organic compound forms an exciplex (excited complex). An emission spectrum of the exciplex overlaps with an absorption band located on the longest wavelength side of an absorption spectrum of the phosphorescent compound. A peak wavelength of the emission spectrum of the exciplex is longer than or equal to a peak wavelength of the absorption band located on the longest wavelength side of the absorp-tion spectrum of the phosphorescent compound.

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