18420214. Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device simplified abstract (SEMICONDUCTOR ENERGY LABORATORY CO., LTD.)

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Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device

Organization Name

SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor(s)

Satoshi Seo of Sagamihara (JP)

Tsunenori Suzuki of Yokohama (JP)

Naoaki Hashimoto of Atsugi (JP)

Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - A simplified explanation of the abstract

This abstract first appeared for US patent application 18420214 titled 'Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device

Simplified Explanation

The patent application describes a novel light-emitting element with improved lifetime and emission efficiency. The element includes an EL layer with specific layers and materials arranged in a particular order to enhance performance.

  • The light-emitting element includes:
 * EL layer with a light-emitting layer, first electron-transport layer, and second electron-transport layer
 * LUMO levels of host material and second electron-transport material higher than the first electron-transport material
    • Potential Applications:**

This technology could be used in various lighting applications such as displays, signage, and lighting fixtures.

    • Problems Solved:**

This technology addresses the issues of short lifetime and low emission efficiency in traditional light-emitting elements.

    • Benefits:**

The benefits of this technology include longer lifetime, higher emission efficiency, and improved performance in lighting applications.

    • Potential Commercial Applications:**

The potential commercial applications of this technology could be in the consumer electronics industry, lighting industry, and automotive industry.

    • Possible Prior Art:**

Prior art in the field of light-emitting elements may include patents or research papers related to improving the efficiency and lifetime of light-emitting devices.

    • Unanswered Questions:**
    • 1. How does the specific arrangement of layers and materials in the EL layer contribute to the improved performance of the light-emitting element?**

The article does not delve into the detailed mechanisms behind how the specific arrangement of layers and materials in the EL layer enhances the performance of the light-emitting element.

    • 2. Are there any specific testing results or data provided to support the claims of improved lifetime and emission efficiency in the patent application?**

The article does not mention any specific testing results or data that validate the improved lifetime and emission efficiency of the light-emitting element described in the patent application.


Original Abstract Submitted

Provided is a novel light-emitting element, a light-emitting element with a long lifetime, or a light-emitting element with high emission efficiency. The light-emitting element includes an EL layer between a pair of electrodes. The EL layer includes at least a light-emitting layer containing a fluorescent substance and a host material, a first electron-transport layer containing a first electron-transport material, and a second electron-transport layer containing a second electron-transport material, which are in contact with each other and in this order. The LUMO level of each of the host material and the second electron-transport material is higher than the LUMO level of the first electron-transport material.