How an LCD Or Plasma Flat Screen Works
There are two kinds of flat screen: LCD and Plasma.
LCD stands for liquid crystal display.
Plasma televisions are named after their central component, Plasma, which is a gas made up of electrons and free flowing ions.
The following article will briefly explain the science behind each type.
In a plasma flat screen, an electrical current is shot through the plasma gas to excite the gas atoms, which causes them to release energy made of photons.
Basically, in a plasma, the illumination of tiny colored fluorescent lights forms an image.
Each pixel in a plasma display is made up of three fluorescent lights: red, blue, and green.
Varied intensities in these lights form the pixels which form the picture.
When the electrical current is shot through the plasma, negatively charged particles rush towards the positive, and positively charged particles rush towards the negative.
The resulting collisions release the photons that illuminate the pixels.
Variation in light intensity, caused by variation in current, allows variation in the pixels to form moving pictures.
LCD screens work by blocking light.
In these screens a liquid crystal substance is blocked between two polarized pieces of glass.
A back-light behind the glass and liquid sends light through the first layer of glass.
Electrical currents in the liquid crystal move around the crystals to determine how much light is let through.
The amount of light moving through the liquid crystal solution determines the shade and shape of the colors displayed on the outer layer of glass, or the screen.
There are two types of LCD: active matrix displays and passive matrix displays.
These days nearly all LCD are active matrix displays.
In these types of, thin film transistors will arrange tiny capacitors and transistors in a matrix on the display glass.
One pixel can be activated by switching on the proper row and sending a charge down the proper column.
Only designated pixels will receive a charge.
Both methods produce a similar effect in a very different way.
Choosing the right type of flat screen comes down to price-range and intended use.
Typically LCD are best for computers and small televisions while Plasma screen are best for larger televisions.
Both types can be found online.
Many sites have top brands like Sony, Visio, and RCA at great prices.
LCD stands for liquid crystal display.
Plasma televisions are named after their central component, Plasma, which is a gas made up of electrons and free flowing ions.
The following article will briefly explain the science behind each type.
In a plasma flat screen, an electrical current is shot through the plasma gas to excite the gas atoms, which causes them to release energy made of photons.
Basically, in a plasma, the illumination of tiny colored fluorescent lights forms an image.
Each pixel in a plasma display is made up of three fluorescent lights: red, blue, and green.
Varied intensities in these lights form the pixels which form the picture.
When the electrical current is shot through the plasma, negatively charged particles rush towards the positive, and positively charged particles rush towards the negative.
The resulting collisions release the photons that illuminate the pixels.
Variation in light intensity, caused by variation in current, allows variation in the pixels to form moving pictures.
LCD screens work by blocking light.
In these screens a liquid crystal substance is blocked between two polarized pieces of glass.
A back-light behind the glass and liquid sends light through the first layer of glass.
Electrical currents in the liquid crystal move around the crystals to determine how much light is let through.
The amount of light moving through the liquid crystal solution determines the shade and shape of the colors displayed on the outer layer of glass, or the screen.
There are two types of LCD: active matrix displays and passive matrix displays.
These days nearly all LCD are active matrix displays.
In these types of, thin film transistors will arrange tiny capacitors and transistors in a matrix on the display glass.
One pixel can be activated by switching on the proper row and sending a charge down the proper column.
Only designated pixels will receive a charge.
Both methods produce a similar effect in a very different way.
Choosing the right type of flat screen comes down to price-range and intended use.
Typically LCD are best for computers and small televisions while Plasma screen are best for larger televisions.
Both types can be found online.
Many sites have top brands like Sony, Visio, and RCA at great prices.