17986948. LIGHT EMITTING DEVICE, DISPLAY DEVICE, PHOTOELECTRIC CONVERSION DEVICE, ELECTRONIC APPARATUS, ILLUMINATION DEVICE, AND MOVING BODY simplified abstract (CANON KABUSHIKI KAISHA)

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LIGHT EMITTING DEVICE, DISPLAY DEVICE, PHOTOELECTRIC CONVERSION DEVICE, ELECTRONIC APPARATUS, ILLUMINATION DEVICE, AND MOVING BODY

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

Tetsuo Takahashi of Kanagawa (JP)

Akira Okita of Kanagawa (JP)

Yojiro Matsuda of Kanagawa (JP)

LIGHT EMITTING DEVICE, DISPLAY DEVICE, PHOTOELECTRIC CONVERSION DEVICE, ELECTRONIC APPARATUS, ILLUMINATION DEVICE, AND MOVING BODY - A simplified explanation of the abstract

This abstract first appeared for US patent application 17986948 titled 'LIGHT EMITTING DEVICE, DISPLAY DEVICE, PHOTOELECTRIC CONVERSION DEVICE, ELECTRONIC APPARATUS, ILLUMINATION DEVICE, AND MOVING BODY

Simplified Explanation

The abstract describes an invention related to an alight emitting device. Here is a simplified explanation of the abstract:

  • The invention is an alight emitting device that includes lower electrodes, an organic layer with a light emitting layer, an upper electrode, a reflective layer, and an insulating layer.
  • The lower electrodes are arranged on a substrate, and the organic layer covers them.
  • The upper electrode covers the organic layer.
  • A reflective layer is placed between the substrate and the lower electrodes, overlapping them.
  • An insulating layer is placed between the reflective layer and the lower electrodes.
  • The lower electrodes consist of a first electrode and a second electrode adjacent to each other.
  • An upper electrode contact portion is located between the first and second electrodes, which electrically connects the reflective layer and the upper electrode.
  • The upper electrode contact portion includes a via hole, which contains a conductive member that connects the reflective layer and the upper electrode.

Potential applications of this technology:

  • Lighting: The alight emitting device can be used in various lighting applications, such as general lighting, automotive lighting, and display backlighting.
  • Displays: The device can be utilized in the production of high-quality displays, including OLED displays and flexible displays.
  • Signage: The technology can be applied to create illuminated signs and billboards.

Problems solved by this technology:

  • Improved efficiency: The reflective layer helps to enhance the efficiency of light emission by reflecting light back towards the light emitting layer.
  • Electrical connectivity: The upper electrode contact portion ensures proper electrical connection between the reflective layer and the upper electrode, improving the overall functionality of the device.
  • Insulation: The insulating layer prevents unwanted electrical interactions between the reflective layer and the lower electrodes.

Benefits of this technology:

  • Enhanced brightness: The reflective layer increases the brightness of the emitted light, resulting in a more vibrant and visually appealing display.
  • Energy efficiency: The improved efficiency of light emission leads to energy savings, making the device more environmentally friendly.
  • Improved reliability: The proper electrical connectivity and insulation provided by the invention contribute to the long-term reliability and stability of the alight emitting device.


Original Abstract Submitted

Alight emitting device comprising lower electrodes arranged on a substrate, an organic layer including a light emitting layer arranged to cover the lower electrodes, an upper electrode arranged to cover the organic layer, a reflective layer arranged between the substrate and the lower electrodes, and an insulating layer arranged between the reflective layer and the lower electrodes, is provided. The reflective layer is arranged to overlap the lower electrodes. The lower electrodes include a first electrode and a second electrode adjacent to each other. An upper electrode contact portion configured to electrically connect the reflective layer and the upper electrode is arranged between the first electrode and the second electrode, and the upper electrode contact portion includes a via hole in which a conductive member configured to electrically connect the reflective layer and the upper electrode is arranged.

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