Technology, Innovation, Lifestyle Advancement – these are the valuable pillars in scientific discoveries. In this era of modernization, we precisely add a minute but precious detail in our innovations. Think about television, From our past days to these modern times, we have been molding televisions with advanced and futuristic technologies to meet the expectations of evolving human minds and provide unmatched and breathtaking watching and other forms of entertainment experience.
Seamlessly, a 55 inch Smart LED TV or a Plasma TV entered our home and acquired the most active corner of the house replacing the old but an ultimate amuser – a Cathode Ray Tube Television. I’m not alone, and this is the scenario of most of the households. According to a survey, the average period to change television in a family is 6.9 years.
Buying a TV can be a hectic and uneasy journey if you don’t have the proper knowledge of TV types. A bunch of technical jargons can create confusion in a buyer’s mind and may end up with the wrong choice.
We have explained different kinds of TVs – LCD, LED and PLASMA which are available now and as well as the previous generation televisions.
Types Of Televisions By Technology
- A Mechanical TV
A mechanical TV is the first commercial television introduced in the United Kingdom in 1928. A radio receiver coupled with components like a fluorescent tube behind the “Nipkow disc” which produces reddish postal stamp images which can be augmented again by using a magnifying lens. A mechanical TV capable of reproducing reasonably accurate monochromatic moving images. Along with the pictures, the set also received synchronized sound.
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- Cathode Ray Tube Television
Cathode Ray Tube (CRT) is the old-style big box-shaped TV. The box contains a Projector gun and the display screen. The projector gun fires the electrons on the screen and excites the particles, and then an image is formed. The first black and white CRT TV was available in 1940. Later in early 1950, the color CRT TV was commercially launched. CRT TV became obsolete on the introduction of LCD TVs in late 2000.
Durability. Minimal technical issues in the long run.
Bigger in sizes.
- LCD TV
Most commonly used on a large scale from 2000. But it was first introduced in late 1960. The pixels of the display screen contain several precisely oriented liquid crystal molecules, aligned between two electrodes and two polarizing filters. When the screen is inert, no light can pass through. But when an electric field is applied, the liquid crystals rotate to a degree dependent on the voltage used, which lets a corresponding amount of light pass through the screen at that pixel. An image is formed by using different energies to different pixels across the screen. Most LCD TVs today are backlit with CCFL.
Affordable. Medium to large-sized TVs cost only a few hundred dollars.
Motion blur and slow response time.
- LED TV
LED TVs are an updated version of LCD TV. Smart LED TV uses the same technology as an LCD TV. Only the backlit system is different. They are lit by an array of light-emitting diodes (LED) instead of being illuminated by a cold cathode fluorescent lamp (CCFL) from behind. These LEDs are far more efficient and smaller in size. It helps to build a narrow frame of the TV.
The backlit of a LED TV can be broken up into two further major categories:
Direct (Back-lit) LED and Edge-lit LED.
A Smart Android TV is basically LED-based. Android TV online content serving feature increases its popularity worldwide. Android TV prices in India are becoming budget-friendly day by day.
[ Link of Backlit system of a LED TV]
Energy-efficient. Long life span. Better picture quality.
Price. Motion blur.
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The assimilation of gases stored in between the layers, covered by 2 glass sheets, creates the formation of a PLASMA screen. The screen pixels illuminate when charged with electricity. The contrast and color accuracy of a Plasma TV is far better than LCD and LED TVs.
Picture Quality and Contrast.
Price. Limited Screen Sizes.