18039593. LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE simplified abstract (SEMICONDUCTOR ENERGY LABORATORY CO., LTD.)
LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE
Organization Name
SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor(s)
Satoshi Seo of Sagamihara (JP)
LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18039593 titled 'LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE
Simplified Explanation
The novel light-emitting device described in the patent application includes an anode over a cathode with an EL layer sandwiched in between. The EL layer consists of a light-emitting layer and an oxidation-resistant layer, with a block layer containing a heterocyclic compound in contact with the EL layer. The oxidation-resistant layer may include metal oxides and an organic compound with an electron-withdrawing group.
- Anode over cathode with EL layer in between
- EL layer with light-emitting and oxidation-resistant layers
- Block layer with heterocyclic compound in contact with EL layer
- Oxidation-resistant layer with metal oxides and organic compound
- Potential Applications
- Display screens - Lighting fixtures - Signage - Wearable technology
- Problems Solved
- Oxidation of the EL layer - Enhanced durability and reliability - Improved efficiency of light emission
- Benefits
- Longer lifespan of the device - Higher quality light emission - Reduced maintenance costs
- Potential Commercial Applications
- Enhanced Light-Emitting Devices for Various Industries
- Potential Commercial Applications
- Possible Prior Art
There may be prior art related to light-emitting devices with oxidation-resistant layers and heterocyclic compounds, but specific examples are not provided in this patent application.
- Unanswered Questions
- How does the efficiency of light emission compare to traditional light-emitting devices?
The patent application does not provide specific data on the efficiency of light emission compared to traditional devices. Further testing and analysis would be needed to determine the exact efficiency gains.
- Are there any limitations to the types of metals that can be used in the oxidation-resistant layer?
The patent application mentions metals from Group 4 to Group 8 of the periodic table, but it does not specify if there are any restrictions on the selection of these metals. Additional research would be required to understand any limitations in this regard.
Original Abstract Submitted
A novel light-emitting device that is highly convenient, useful, or reliable is provided. The light-emitting device includes an anode over a cathode with an EL layer sandwiched therebetween. The EL layer includes at least a light-emitting layer and an oxidation-resistant layer over the light-emitting layer. The EL layer has a side surface. The light-emitting device includes a block layer in contact with a top surface and the side surface of the EL layer. The cathode is in contact with the side surface of the EL layer with the block layer therebetween. The block layer includes a heterocyclic compound. In the light-emitting device with the above structure, the oxidation-resistant layer may include any one or a plurality of oxides of metals belonging to Group 4 to Group 8 of the periodic table and an organic compound having an electron-withdrawing group.
