Progression of TV Technologies

In this modern era, it is tough to imagine living without televisions Cork. These electronic systems have played an essential role in people’s lives since their invention in the early 1940s. As these deliver transient images of fixed or moving objects with sound from a source to a receiver, people have depended on televisions for entertainment and news sources.

Initially, commercially available televisions in the early days were in black and white. This is because the TV technology at the time is using a white phosphor-coated screen. But, due to the market competition it has seen, television technology evolved rapidly in the 20th century.

In 1897, the Cathode Ray Tube (CRT) technology was initially invented by German physicist Ferdinand Braun. Eventually, in the 1900s, CRT was used to develop a television that produces coloured images. It uses three electron beams, one for each additive primary colour – red, green, and blue.

In 1907, the foundations for LED displays were established. British radio researcher Henry Joseph Round has discovered electroluminescence, a natural phenomenon wherein light does not produce heat. Moreover, in 1961, Nick Holonyack invented the first light LED (Light Emitting Diode) visible to the naked eye. These developments have paved the way for different display technology products, such as a LED display television. It has a flat panel display that uses an array of LEDs as pixels for displaying transient images.

Also, in the 1960s, LCD (Liquid Crystal Display) technology was invented. It has laid the foundation for the possibility of flat-screen televisions that many modern households are familiar with. The LCD technology leverages a backlight source through the light-modulating properties of liquid crystals to illuminate. While the liquid crystals do not directly emit light, unlike the electron beams of CRT, LCD televisions consume less power when compared with earlier TV technologies.

In 1995, during the advent of digital technology, full-colour Plasma Displays had been introduced to the public. Plasma technology in televisions consists of tiny cells coated inside with phosphor, which were then coated to the interior of a glass tube filled with gas. Because of the absence of CRT, the size of televisions that utilize plasma technology is reduced.

With the continuous evolution of display screens, organic light-emitting diode (OLED), active-matrix organic light-emitting diode (AMOLED), and quantum-dot light-emitting diode (QLED) technologies came along. These newer LED displays made it possible for screens to be thinner and more flexible than earlier models of television Waterford.

To know more information about changes and breakthroughs in television technologies in the past hundred years, see this infographic from Irwin’s Megastore Megavision.

Scroll to Top