18534682. LIGHT EMITTING DEVICE AND PROJECTOR simplified abstract (SEIKO EPSON CORPORATION)
Contents
LIGHT EMITTING DEVICE AND PROJECTOR
Organization Name
Inventor(s)
Masamitsu Mochizuki of CHINO-SHI (JP)
LIGHT EMITTING DEVICE AND PROJECTOR - A simplified explanation of the abstract
This abstract first appeared for US patent application 18534682 titled 'LIGHT EMITTING DEVICE AND PROJECTOR
The patent application describes a light emitting device that includes a photonic crystal layer designed to control the direction of emitted light.
- The device consists of a first semiconductor layer, a second semiconductor layer, and a light emitting layer sandwiched between them.
- A photonic crystal layer is placed on the side of the second semiconductor layer opposite to the light emitting layer.
- The photonic crystal layer has a first region with a photonic crystal that resonates light in a specific direction and a second region with a different photonic crystal that emits light in another direction.
- The first photonic crystal ensures light resonates orthogonally to the layers, while the second photonic crystal emits light in a different direction.
Potential Applications:
- LED lighting
- Display technology
- Optical communication systems
Problems Solved:
- Controlling the direction of emitted light
- Enhancing light emission efficiency
Benefits:
- Improved light emission control
- Increased efficiency in light output
Commercial Applications:
- LED lighting for commercial and residential use
- Display panels for electronic devices
- Optical communication equipment for data transmission
Questions about the technology: 1. How does the photonic crystal layer impact the efficiency of light emission? 2. What are the potential challenges in integrating this technology into existing lighting systems?
Original Abstract Submitted
A light emitting device including a first semiconductor layer, a second semiconductor layer, a light emitting layer disposed between the first semiconductor layer and the second semiconductor layer, and a photonic crystal layer disposed on a side of the second semiconductor layer opposite to the light emitting layer is provided. The photonic crystal layer includes a first region provided with a first photonic crystal that causes light emitted by the light emitting layer to resonate in a direction orthogonal to a laminating direction of the first semiconductor layer and the light emitting layer and does not cause the light to be emitted in a direction different from the orthogonal direction, and a second region provided with a second photonic crystal that does not overlap the first region when viewed in the laminating direction and causes the light to be emitted in a direction different from the orthogonal direction.