QDEF is a new kind of backlight technology that’s going to enable a new generation of LED backlit TVs that have OLED-like performance at only a fraction of the cost. Display performance is all about light- how much can I generate, how efficiently, how wide a range of colors, and how much resolution can I pack in? QDEF gives LCD makers a way to tune the spectrum of light in the backlight and dramatically improve picture quality. It does this with millions of tiny nanoscrystal phosphors, called “quantum dots.” These “dots” emit light at a very precise wavelength and can be controlled by their size. We use a mix of different color emitting dots to create the perfect backlight for your LCD. The result is richer, more saturated color that’s more true to life.
What are the advantages of QDEF over today’s backlit LED displays? QDEF is also an LED-based LCD technology but there are some key differences and advantages compared to today’s LED TV’s. A standard LCD backlight creates white light using a technology called YAG phosphor. YAG produces a two-color spectrum, dominated by blue and accompanied by a broad, yellow component. It lacks a strong red and green element and this results in poor color performance. QDEF creates a pure white backlight that is designed specifically for LCD displays. This light, made up only of narrow spectral peaks in red, blue and green wavelengths, allows for wide color gamut performance when mixing these primary colors at the pixel level. It does this with great efficiency, so it doesn’t sacrifice the brightness of the display.
-- Article submitted by HomeToys --
