20240010914. PHOSPHOR POWDER, LIGHT-EMITTING DEVICE, IMAGE DISPLAY DEVICE, AND ILLUMINATION DEVICE simplified abstract (Denka Company Limited)
PHOSPHOR POWDER, LIGHT-EMITTING DEVICE, IMAGE DISPLAY DEVICE, AND ILLUMINATION DEVICE
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PHOSPHOR POWDER, LIGHT-EMITTING DEVICE, IMAGE DISPLAY DEVICE, AND ILLUMINATION DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240010914 titled 'PHOSPHOR POWDER, LIGHT-EMITTING DEVICE, IMAGE DISPLAY DEVICE, AND ILLUMINATION DEVICE
Simplified Explanation
The patent application describes a phosphor powder that contains phosphor particles with a specific composition and particle size distribution. The phosphor powder includes phosphor particles where a portion of the silicon (Si) and aluminum (Al) in the general formula m(Si, Al)(N, O) is substituted with a cerium (Ce) element. The phosphor particles have a Si/Al atomic ratio between 1.5 and 6 and an O/N atomic ratio between 0 and 0.1. Additionally, the phosphor powder contains 5 to 50 mol% lithium (Li) and 0.5 to 10 mol% cerium (Ce).
- The phosphor powder includes phosphor particles with a specific composition and particle size distribution.
- The phosphor particles have a Si/Al atomic ratio between 1.5 and 6 and an O/N atomic ratio between 0 and 0.1.
- The phosphor powder contains 5 to 50 mol% lithium (Li) and 0.5 to 10 mol% cerium (Ce).
Potential applications of this technology:
- Lighting: The phosphor powder can be used in lighting applications, such as LED lighting, to enhance the color rendering properties and efficiency of the light source.
- Displays: The phosphor powder can be used in display technologies, such as LCD and OLED displays, to improve color accuracy and brightness.
- Medical imaging: The phosphor powder can be used in medical imaging devices, such as X-ray screens, to enhance image quality and sensitivity.
Problems solved by this technology:
- Improved color rendering: The phosphor powder allows for the production of light sources with better color rendering properties, resulting in more accurate and vibrant colors.
- Enhanced efficiency: The phosphor powder improves the efficiency of light sources, leading to energy savings and longer lifespan.
- Higher image quality: The phosphor powder enhances the image quality of displays and medical imaging devices, allowing for more detailed and accurate visual information.
Benefits of this technology:
- Improved color accuracy: The phosphor powder enables the production of light sources and displays with better color accuracy, resulting in more realistic and visually appealing images.
- Energy savings: The phosphor powder increases the efficiency of light sources, leading to energy savings and reduced environmental impact.
- Enhanced image quality: The phosphor powder improves the image quality of displays and medical imaging devices, allowing for better visualization and diagnosis.
Original Abstract Submitted
a phosphor powder including phosphor particles of a phosphor represented by a general formula m(si, al)(n, o)and in which a part of m is substituted with a ce element, the phosphor powder includes phosphor particles in which a si/ai atomic ratio is equal to or more than 1.5 and equal to or less than 6, an o/n atomic ratio is equal to or more than 0 and equal to or less than 0.1, 5 to 50 mol % of m is li, and 0.5 to 10 mol % of m is ce. in a case where a volume-based cumulative 10% particle size, a volume-based cumulative 50% particle size, and a volume-based cumulative 90% particle size of this phosphor powder measured by a laser diffraction scattering method are defined as d, d, and d, respectively, (d-d)/dis equal to or more than 0.7 and equal to or less than 1.1.
