There are many emerging technologies in display devices such as televisions. Each technology is characterized by certain features of the display and is a particular method of representation. different technologies used in televisions
LCD TV:
HDTV
LCD (Liquid Crystal Display) televisions are thinner and lighter and offer much sharper and clearer the screen size of CRT. They are ideal for display on your phone, computer monitors, and photo viewing. LCD TVs have a flat so weno image distortion and have no windows "burn in" as curved tube TVs. In general, the angle of the liquid crystal is 175 degrees. The image can be 87 degrees on each side. LCD TVs are very economical to use and less than 35 screens are cheap enough. LCD TVs are backlit and block outside light. So are suitable for situations of natural light. Most LCD TVs have a half-life (50% of original brightness) of 30,000 hours (16 years, more than 6 hours per day). LCDSizes generally in the range of 13 to 65, but some manufacturers offer up to 100 variables.
Plasma TV:
A plasma display panel (PDP) is a large flat-screen television displays are used. You have to do better and more accurate colors than the generation LCD display with wide viewing angle, and not to degradation at high angles than LCD. Plasma displays are ideal for viewing moving video to large displays.
• Dimensions plasma usually in the range 32-84but some have screen sizes up to 100
· Technology pixel plasma offers a brighter image with more contrast between white and black as standard TV.
• In general, plasma TVs viewing angles of 160 degrees to 180 degrees and the images can be seen from every angle.
• In an average plasma TVs have a half-life (50% brightness) of 50,000 to 70,000 hours (20 years, which is 6 hours per day to 50,000 hours).
Some plasma televisions are equipped with updatedGraphics cards, which helps to match the technology of the future.
HDTV:
HDTV or High Definition Television is a digital television broadcasting system provides greater resolution than standard television systems. HDTV is digital broadcast program, in contrast with previous analog because digital television (DTV) signals require less bandwidth video compression, because digital.
HDTV is not a standard TV system problems, such as low qualityproblems of sharpness, brightness and contrast, patch, other visual or audio imperfections, problems such as double images (ghosting) and weak signals. HDTV offers clearer images with excellent sound quality, a larger screen and up-to-date scanning. Experience HDTV channels and more available than the system provided by satellite or cable with the normal theater.
LED-TV:
LED (Light Emitting Diode) TV is an LCD TV that uses LEDs for the rearLighting rather than fluorescent tubes (as it produces more black spots). They are ideal for indicators of low energy used to replace traditional light sources for general lighting and automotive.
· LED TV which currently cost more than a standard LCD or plasma TV.
· LED TV has been good and seems very easy to install.
· TV Edge-lit LED consumes 30-40% less than LCD or plasma. But LED backlighting and consume morePower.
· Light LED TV picture can be compared to a standard LCD TV to consider.
· LED TV that has a backlight with local dimming RGB LED and have a more extensive and better contrast and color accuracy than conventional LCD TVs.
It has a long life and environmentally friendly.
OLED TV:
OLED (Organic Light Emitting Diode) television employee light-emitting polymer technology. His property, including,
• In OLED TVs,do not need a backlight or additional heaters or coolers, so there is less power consumption.
• How OLED materials has the ability to support full spectrum of visible light, so it has higher contrast and high-speed frame rate.
OLED · are much faster than LCD. Time Lapse and rapid eye movement images are more realistic. OLED TV and virtual images look more realistic and can be easily observed for a longer period.
· There must be greaterAngle of vision for near-eye applications, it offers comfortable, without distortion.
A disadvantage with OLED TV is the limited lifetime of organic materials used in their manufacture. In addition, the blue light rapidly degraded with a life of 14,000 hours (8 hours per day for five years) for flat panel displays.
Before you buy a television, know the difference between the technology and buy one, the features you want and suitsYour budget.
Knowing the difference between LCD, Plasma, HDTV, LCD, OLED and
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