What is KSF phosphor?
KSF phosphor is a narrow-band emission red powder, mainly used in the packaging of high color gamut liquid crystal backlights and high color rendering white LEDs. It has the characteristics of high light efficiency and high color purity. This LED phosphor material range offers outstanding stability and efficiency.
Do LEDs use phosphor?
In the simplest of terms, phosphor is what makes LED light usable. LED chips are intrinsically blue, red or green with the blue variety of LEDs being the most commonly used in solid state lighting. Red Nitride phosphors are a crucial ingredient to creating high quality light with an R9 value of up to 98.
What is a phosphor converted LED?
A phosphor-converted LED refers to an LED package that uses phosphor conversion (PC) to broaden the spectral power distribution (SPD) of its optical radiation. An LED chip by nature is a narrow-band emitter with a full width at half maximum (FWHM) value in the range of from about 15 nm to about 30 nm.
What is a phosphor coating?
Phosphor is the luminescent material critical to many lighting applications, especially LEDs. Most white LEDs are in fact blue LEDs with a phosphor coating. Phosphor absorbs the light at the blue wavelength and reemits the photons at longer wavelengths.
Is OLED better than Wled?
The main advantage of OLED technology is that it allows displays to be much thinner (up to 10x) than displays made using LCD technology (with WLED backlight). Another important advantage is that because OLED displays do not need a backlight, they consume less power.
Can a LED be connected directly to a 9v battery?
The forward voltage of an LED is between 1.8 and 3.3 volts, So connecting them directly to a 9 Volt battery without a current limiting resistor will just destroy them, UNLESS it is connected in ‘Reverse bias’ mode.
What color is phosphor?
Standard phosphor types
| Phosphor | Composition | Color |
|---|---|---|
| P6 | ZnS:Ag+ZnS:CdS:Ag | White |
| P7 | (Zn,Cd)S:Cu | Blue with Yellow persistence |
| P10 | KCl | green-absorbing scotophor |
| P11, BE | ZnS:Ag,Cl or ZnS:Zn | Blue |
How do phosphors work?
A phosphor is a substance that radiates visible light after being energized. In a TV screen, an electron beam strikes the phosphor to energize it (see How Television Works for details). In a fluorescent light, ultraviolet light energizes the phosphor. In both cases, what we see is visible light.
What is the difference between phosphor and phosphorus?
A phosphor is a substance that exhibits the phenomenon of luminescence; it emits light when exposed to some type of radiant energy. Phosphorus, the light-emitting chemical element for which phosphors are named, emits light due to chemiluminescence, not phosphorescence.
How does a phosphor work?
Is LED monitor good for eyes?
On the other hand, especially if you work long hours, LED monitors tend to offer better dimming options without sacrificing picture clarity. Eye strain can occur in as little as three hours, so if that’s your top concern, an LED monitor is better for your eyes.
What is phosphate LED phosphor?
Phosphate LED phosphor can be effectively excited by a 400nm violet LED chip with an emission peak wavelength in the 445-475nm range. Combined with β-SiAlON green phosphor and nitride red phosphor, a full spectrum white light with R1-R15 all above 90 can be achieved.
What are the benefits of intematix KSF phosphors?
Intematix KSF phosphors enable increased color gamut and superior brightness for display backlighting. The narrow band emission enables up to 30% better color filter throughput, higher screen brightness and lower energy consumption.
What is the best phosphor for LED backlight?
KSF LED phosphor can be effectively excited by a 460nm blue LED chip with a strongest emission peak wavelength at near 631nm, full width at half maxima (FWHM) < 60nm with comparatively high color purity. Combined with β-SiAlON green phosphor for a backlight, NTSC can be improved to above 100%.
What is the highest emission peak wavelength of LED phosphor?
KSF phosphor Yuji KSF LED phosphor can be effectively excited by a 460nm blue LED chip with a strongest emission peak wavelength at near 631nm, full width at half maxima (FWHM) < 60nm with comparatively high color purity. Combined with β-SiAlON green phosphor for a backlight, NTSC can be improved to above 100%.