18604725. LIGHT-EMITTING DEVICE, DISPLAY DEVICE, AND ELECTRONIC APPARATUS simplified abstract (SEIKO EPSON CORPORATION)
Contents
LIGHT-EMITTING DEVICE, DISPLAY DEVICE, AND ELECTRONIC APPARATUS
Organization Name
Inventor(s)
Yasuto Akatsuka of Chino-shi (JP)
LIGHT-EMITTING DEVICE, DISPLAY DEVICE, AND ELECTRONIC APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18604725 titled 'LIGHT-EMITTING DEVICE, DISPLAY DEVICE, AND ELECTRONIC APPARATUS
The abstract describes a light-emitting device with a tapered shape and low refractive index portions to enhance light emission efficiency.
- The device includes a stacked body with a tapered portion that widens from one electrode to the other.
- Low refractive index portions are placed on the side surfaces of the tapered portion and the second electrode.
- A metal portion is added to the side surface of the second low refractive index portion.
- The stacked body consists of semiconductor layers and a light-emitting layer, with light emitted from the second electrode side.
- The lens surface is formed on the side opposite to the second electrode on the second low refractive index portion.
Potential Applications: - LED lighting - Display technology - Optical communication systems
Problems Solved: - Improved light emission efficiency - Enhanced brightness and clarity of emitted light
Benefits: - Higher energy efficiency - Better light output quality - Longer lifespan of the device
Commercial Applications: Title: Enhanced LED Lighting Technology for Various Applications This technology can be used in various industries such as consumer electronics, automotive lighting, and signage for improved lighting solutions.
Questions about the technology: 1. How does the tapered shape of the device contribute to its light emission efficiency? 2. What are the advantages of having low refractive index portions in the device design?
Original Abstract Submitted
A light-emitting device includes a stacked body that includes a tapered portion having a tapered shape having a width increasing from side of a first electrode toward side of a second electrode, a first low refractive index portion that is provided on a side surface of the tapered portion, a second low refractive index portion that is provided on side of the second electrode opposite to the stacked body, and a metal portion provided on a side surface of the second low refractive index portion, wherein the stacked body includes a first semiconductor layer, a second semiconductor layer, and a light-emitting layer, light generated in the light-emitting layer is emitted from the side of the second electrode, and a surface of the second low refractive index portion on side opposite to the second electrode is a lens surface.
