17682249. LIGHT-EMITTING DEVICE INCLUDING FLUORESCENT COMPOUND, ELECTRONIC APPARATUS INCLUDING LIGHT-EMITTING DEVICE, AND FLUORESCENT COMPOUND simplified abstract (Samsung Electronics Co., Ltd.)
LIGHT-EMITTING DEVICE INCLUDING FLUORESCENT COMPOUND, ELECTRONIC APPARATUS INCLUDING LIGHT-EMITTING DEVICE, AND FLUORESCENT COMPOUND
Organization Name
Inventor(s)
Sooghang Ihn of Hwaseong-si (KR)
LIGHT-EMITTING DEVICE INCLUDING FLUORESCENT COMPOUND, ELECTRONIC APPARATUS INCLUDING LIGHT-EMITTING DEVICE, AND FLUORESCENT COMPOUND - A simplified explanation of the abstract
This abstract first appeared for US patent application 17682249 titled 'LIGHT-EMITTING DEVICE INCLUDING FLUORESCENT COMPOUND, ELECTRONIC APPARATUS INCLUDING LIGHT-EMITTING DEVICE, AND FLUORESCENT COMPOUND
Simplified Explanation
The abstract describes a light-emitting device that utilizes an organic layer containing a fluorescent compound to emit light via fluorescence. The compound undergoes a process called reverse intersystem crossing (rISC), where excitons in an excited state migrate to a higher excited state before transitioning to a ground state and emitting light.
- The light-emitting device includes an organic layer with a fluorescent compound.
- Excitons in the compound's excited state migrate to a higher excited state through reverse intersystem crossing (rISC).
- The compound then transitions to a ground state and emits light through fluorescence.
- The fluorescent compound has a ratio of rISC to internal conversion (IC) rate of 0.5 or greater.
Potential applications of this technology:
- Lighting: The light-emitting device can be used for general lighting purposes, such as in homes, offices, or public spaces.
- Displays: The device can be integrated into displays, such as televisions, smartphones, or digital signage.
- Signage: The technology can be used to create illuminated signs or billboards.
- Automotive lighting: The light-emitting device can be utilized in headlights, taillights, or interior lighting of vehicles.
Problems solved by this technology:
- Energy efficiency: The use of the fluorescent compound and the rISC process allows for efficient light emission, reducing energy consumption.
- Longevity: The organic layer and the fluorescent compound can be designed to have a longer lifespan compared to traditional light-emitting materials.
- Color accuracy: The technology can produce a wide range of colors with high color accuracy, making it suitable for applications requiring precise color representation.
Benefits of this technology:
- Energy savings: The efficient light emission of the device leads to reduced energy consumption and lower electricity costs.
- Longer lifespan: The organic layer and fluorescent compound can have a longer operational lifespan, reducing the need for frequent replacements.
- Versatile color options: The technology allows for the production of a wide range of colors with high color accuracy, providing flexibility in various applications.
Original Abstract Submitted
A light-emitting device including an organic layer disposed between a first electrode and a second electrode, the organic layer comprising a fluorescent compound, wherein upon excitation, excitons in a n-π* excited state of the fluorescent compound migrate to a π-π* excited state of the fluorescent compound by reverse intersystem crossing with a Rate (rISC), and then undergo radiative transition to a ground state to emit light via fluorescence. The fluorescent compound is defined by a ratio of Rate (rISC) to Rate (IC) is 0.5 or greater. An electronic apparatus including the light-emitting device, and the fluorescent compound.
- Samsung Electronics Co., Ltd.
- Yongsik Jung of Seoul (KR)
- Youngmin You of Seoul (KR)
- Juhyun Kim of Seoul (KR)
- Yusung Chun of Goyang-si (KR)
- Joonghyuk Kim of Seoul (KR)
- Dayoon Song of Daejeon (KR)
- Dongyeun Jeong of Seoul (KR)
- Seunghee Choi of Seoul (KR)
- Sooghang Ihn of Hwaseong-si (KR)
- Hyeonho Choi of Seoul (KR)
- H01L51/00
- C07D235/02
- C09K11/06