
True High Brightness, Low-Power,
high reliability Solid State LED Backlighting
Luminance Level: 1000 to 1950 nits ( cd/m2 ) depending on
model
No risk of backlight hard failure
LED array provides light-source redundancy
No voltage in drive circuitry
Virtually instant warm-up
Superior electrical to light efficiency allows our LED backlit
LCDs to provide sunlight readability while consuming significantly
less power than that of traditional CCFL backlit panels.
Each LED backlit display is matched with our VTLED driver
technology, the latest in technology for driving solid state
High Bright Light Emitting Diodes (HBLEDs) (more
details). This driver includes our patented mixed-mode
dimming operation, for stable low end dimming and ultra wide
dimming ranges, minimum 10,000:1.
LED backlights provide improved shock & vibration and
improved brightness uniformity over CCFL backlights.
VarTech’s thermally efficient designs enhance the long
life characteristics of the high bright LEDs. Projected lifetime
of our LED backlights exceeds 75,000 hours.
VarTech's VBOND seals either a top cover glass
or touch screen directly to the face of the LCD which:
(more details)
Significantly improves Reflective Light Loss;
Provides the best reduction of ambient light washout of any
commercially available enhancement technology;
Enhances structural integrity by supporting the LCD assembly
with the cover glass;
Offers superior ruggedization, including enhancing the display's
durability under vibration, shock and other environmental
extremes;
Increases Extrinsic Contrast significantly;
Eliminates the air-gap between LCD and touch screen overlay:
Prevents the 'greenhouse' effect;
Prevents fogging and moisture build up;
Eliminates any contamination from dirt and/or other obstructive
particles;
VarTech's proprietary Optical Stack Enhancement
(OSE):
VarTech's proprietary Optical Stack Enhancement (OSE) is a
unique optical design which boosts efficiency of the backlight's
light utilization and minimizes the surface reflection of
ambient light. The result is a transmissive enhancement that
features higher contrast and a wider range of colors, even
in bright outdoor light, than traditional reflective LCDs.
This is accomplished by:
Recycling what would be wasted off axis light and then redirecting
light towards the viewer;
Reflecting and recycling polarized light which under normal
circumstances 50% of the backlight output would have been
absorbed into the LCD and subsequently wasted;
Finally, the use of a multilayer, ultra-high reflectivity,
mirror-like optical enhancement film that is used as a very
efficient light guide and cavity reflector with a reflectivity
of 98.5% across the visible spectrum which provides a brighter
more efficient display;
Advanced Deep Dimming to Black
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