18484342. LIGHT EMITTING APPARATUS, DISPLAY APPARATUS, PHOTOELECTRIC CONVERSION APPARATUS, ELECTRONIC DEVICE, ILLUMINATION APPARATUS, AND MOVING OBJECT simplified abstract (CANON KABUSHIKI KAISHA)
LIGHT EMITTING APPARATUS, DISPLAY APPARATUS, PHOTOELECTRIC CONVERSION APPARATUS, ELECTRONIC DEVICE, ILLUMINATION APPARATUS, AND MOVING OBJECT
Organization Name
Inventor(s)
KOJI Ishizuya of Kanagawa (JP)
NORIFUMI Kajimoto of Kanagawa (JP)
YOJIRO Matsuda of Kanagawa (JP)
TETSUO Takahashi of Kanagawa (JP)
LIGHT EMITTING APPARATUS, DISPLAY APPARATUS, PHOTOELECTRIC CONVERSION APPARATUS, ELECTRONIC DEVICE, ILLUMINATION APPARATUS, AND MOVING OBJECT - A simplified explanation of the abstract
This abstract first appeared for US patent application 18484342 titled 'LIGHT EMITTING APPARATUS, DISPLAY APPARATUS, PHOTOELECTRIC CONVERSION APPARATUS, ELECTRONIC DEVICE, ILLUMINATION APPARATUS, AND MOVING OBJECT
Simplified Explanation
The light emitting apparatus described in the patent application includes an organic light emitting element with a reflection surface, electrodes, an organic layer with a light emitting layer, a second electrode, and a light extraction structure.
- The light emitting layer contains a first light emitting material with a peak wavelength range in its PL spectrum assumed as a first wavelength λ.
- The optical distance between the light emitting layer and the reflection surface is optimized to intensify rays of light with the first wavelength λ traveling in different directions.
- The intensified rays of light are emitted in perpendicular directions when they reach inclined portions of the light extraction structure.
- Potential Applications:**
- Display technologies such as OLED screens
- Lighting applications for energy-efficient and high-quality lighting solutions
- Problems Solved:**
- Enhancing light extraction efficiency from the organic light emitting element
- Improving overall brightness and color accuracy of the emitted light
- Benefits:**
- Increased efficiency in light emission
- Enhanced brightness and color quality in displays and lighting applications
- Potential for energy savings in lighting solutions
Original Abstract Submitted
A light emitting apparatus according to the present disclosure includes an organic light emitting element () including a reflection surface (S), a first electrode (), an organic layer () including a light emitting layer (), a second electrode (), and a light extraction structure (). The light emitting layer () contains a first light emitting material. A wavelength included in a peak wavelength range of a PL spectrum of the first light emitting material is assumed as a first wavelength λ. An optical distance (Lb) between the light emitting layer () and the reflection surface (S) is a value with which rays of light with the first wavelength (λ), traveling in a first direction (D) and a second direction (D) that intersect with a normal direction of a principal surface (S) of the substrate (), both are intensified. When the intensified rays of light respectively reach a first inclined portion () and a second inclined portion () of the light extraction structure (), the rays of light respectively are emitted in a third direction (D) and a fourth direction (D) that are directions substantially perpendicular to the principal surface (S) of the substrate ().
