This ppt contains working and basics about plasma display panels as a display devices

1. PLASMA TV
PRESENTATION

2. What is Plasma?
Plasma is often called the "Fourth State of
Matter", the other three being solid, liquid
and gas. A plasma is a distinct state of matter
containing a significant number of electrically
charged particles, a number sufficient to
affect its electrical properties and behavior.
In addition to being important in many
aspects of our daily lives, plasmas are
estimated to constitute more than 99 percent
of the visible universe.

3. PLASMA TV
* A plasma display panel (PDP) is a type of flat
panel display common to large TV displays 30
inches (76 cm) or larger.
*Plasma display screens are made from glass, which
reflects more light than the material used to
make an LCD screen

4. PLASMA TV
•They are called "plasma" displays because the
technology utilizes small cells containing
electrically charged ionized gases
•Capable of producing deeper blacks allowing for
superior contrast ratio

5. *oPlasma is a state of matter similar
to gas in which a certain portion of
the particles are ionized.
*Heating a gas may ionize its
molecules or atoms (reduce or
increase the number of electrons in
them), thus turning it into a
plasma, which contains charged
particles: positive ions and
negative electrons or ions.
*In the universe, plasma is the
most common state of matter.
Some common plasmas are
stars and neon signs.
PLASMA LAMP

6. Typical plasma displays
consist of two glass
plates, each with parallel
electrodes deposited on
their surfaces. The
electrodes are covered
with a dielectric film. The
plates are sealed together
with their electrodes at
right angles, and the gap
between the plates is
filled with an inert gas
mixture. A protective MgO
layer is deposited above
the dielectric film. The
role of this layer is to
decrease the breakdown
voltage caused by the
high secondary electron
emission coefficient of
MgO.

7. *

8. *

9. The discharge is initiated
by applying a voltage pulse to
the electrodes. Xenon gas
mixtures are used to
efficiently generate UV
photons. The UV photons
emitted by the discharge hit
the phosphors deposited on
the walls of the PDP cell and
are converted into visible
photons. Each cell contains
phosphor that emits one
primary color—red,
green, or blue.

10. *
* Plasma TVs offer many advantages over other television
technologies:
1. Exceptional Color: Plasma TVs display up to 16.77
million colors.
2. High Resolution: Plasma TVs are able to display a high
resolution, and are capable of displaying HDTV signals.
3. Widescreen Aspect Ratio: Plasma TVs offer a dramatic
widescreen 16:9 ratio display.
4. Flat Screens: Plasma TVs offer perfectly flat screens,
cutting down on image distortion and glare.
5. Magnetic Field Immunity.
6. Wider viewing angles than those of
LCD
7.Uniform Screen Brightness.

11. *
* Of course, not all technologies are perfect, and
Plasma TVs do have some disadvantages
compared to other TV technologies:
1. Shorter Life: Compared to other television
technologies, Plasma TVs do generally have a
shorter life span, and there is no option to repair a
burnt out tube or backlight.
2. Fragility: Plasma TVs are a very fragile
technology, and the units are quite easy to
damage.
3. Price.
4. Not the Lightest or Slimmest.
5. Lower Brightness.
6. Potential Burn-In.
7. more electrical power than an LCD TV

13. ANY QUERIES ?

14. THANK YOU!

15. Presented By
KANARAM VERMA
B.Tech(ECE,6th sem)