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What is LED Display and its Advantages and Disadvantages
What is LED Display
and its Advantages and Disadvantages
LED stands for Light
Emitting Diodes. LED display uses an array of light emitting diodes as a
video display. An LED panel is a small display, or a component of a larger
display. These are the most efficient way to turn an electric current into
illumination. When a current flows through a diode in the forward direction, it
consists of surplus electrons moving in one direction in the lattice and
“holes” (voids in the lattice) moving In the other. Occasionally, electrons can
recombine with holes. When they do, the process releases energy in the form of
photons. This is true for all semiconductor junctions, but LEDs use materials
that maximize the effect. The color of the light emitted (corresponding to the
energy of the photon) is determined by the semiconductor materials. There are
the energy of the LED panels: Conventional (using discrete LEDs) and Surface
mounted device (SMD) panels.
Life span of LED is 10 times longer than that of LCD. These provide
better picture quality, higher contrast ratio, consume less power, and are thin
as compared to LCD monitors.
LED display is typically used as sign board in public
transport. It is sometime also used as form of lighting for the purpose of
stage lighting rather than display.
Advantages of LED Display:
1. Slim Design:
LED monitors backlighting allows for
a slim, sleek design. These are much thinner and lighter than LCD monitors
because LED monitors do not use fluorescent bulbs.
2. Brighter
Image: : LED monitors feature
impressive contrast ratio that deliver a brighter picture than conventional LCD
technology with brilliant image quality. Contrast is enhanced, colors are
richer and black has more depth.
3. Better Color: LED monitors feature more intensity graduation and a
larger light wavelength that LCD monitors, delivering true, lifelike colors
with better gradation.
4. Flicker-Free
Image: LED Monitors produce virtually
flicker-free images, reducing eye strain, eye fatigue and headaches.
5. Better
Picture Quality: LED monitors have
better color intensity and do not produce motion blur. With LED lighting
technology, light does not escape as it does with LCD technology, so the
quality of the images is not affected and the picture remains crisps and clear.
6. Longer
Lifespan: LCD monitors contains
fluorescent blubs which have a relatively short lifespan with continuous use
and can dim over time. LED monitors offers almost 10 times longerlife than LCD.
7. Lower Power
Consumption: LED monitors consume
30-50% less power than a conventional LCD monitors.
8. No warm-up period:
It does not require a warm up period and lights instantly in nanoseconds.
9. Controllable:
It can be controlled for brightness
and color.
10. Solid State: it is less to damage as it is solid state component.
11. Environment
Friendly: LED-lit display does not contain
halogen or mercury (as in LCDs) that makes recycling them safer for the
environment.
Limitation or Disadvantages of LED Display:
1.
Currently
LEDs are more expensive.
2.
Its performance
largly depends upon correct engineering.
3.
With passage of
the and change in temperature its quality is affected.
