Television set

The evolution of television technology over the years

Back then, televisions were not common in homes, unlike today. In fact, at one time having a color television was the preserve of the wealthy. However, with the advancement of technology, televisions have become so affordable that they are a must have in every home.

Here we will see how televisions and their technologies have evolved over the years;

CRT – Cathode ray tube televisions

Growing up in the 1980s, CRT televisions were the norm. These TVs were characterized by bulky size, curved screens and heavy weight. The technology for these televisions revolved around a cathode ray tube. This vacuum tube projected electrons onto a screen to create an image.

When the signals entered the television, a circuit projected electrons through the tube to create an image on the screen via an aperture mask. The inside of the screen contained phosphors that created a red, blue or green light. The following colors and images seen on television occurred when electrons hit the phosphor layer and ignited it.

PDP – Plasma TVs

After cathode ray screens, plasma screens (PDP) were the next in the evolution of televisions. type of flat screen that uses small cells containing plasma: ionized gas that reacts to electric fields. Plasma TVs were the first large flat screens (over 32 inches diagonal) to be released to the public.

Plasma screens were a welcome relief from CRTs because not only did they have a flat screen, but they were also lighter in weight and had better picture quality.

LCD – Liquid crystal televisions

These are televisions that use liquid crystal screens to produce images. LCD TVs are thin and light, but have some drawbacks compared to other display types, such as high power consumption, lower contrast ratio, and lower color gamut.

LED – Light Emitting Diode Televisions

These televisions came out after LCDs but are based on the same technology. The main difference from general LCD TVs is that LCDs use fluorescent lights while LEDs use these light emitting diodes. Additionally, the location of the lights on an LED TV may differ. The fluorescent lights of an LCD TV are always behind the screen.

On an LED TV, light emitting diodes can be placed either behind the screen or on its edges. The difference in lighting and lighting placement generally means LED TVs can be thinner than LCD screens, although that is starting to change. It also means that LED TVs work more energy efficient and can provide a clearer and better picture than general LCD TVs.

Nanocell TVs

Nanovell Tv technology delivers a more vivid color palette to support over a billion color combinations, taking the TV experience to a whole new level. LG has patented this technology, which is why you won’t find it on any other TV.

NanoCell technology uses nanoparticles of sizes 1 nanometer embedded in IPS panels. By filtering out unnecessary nuances, the resulting image is of the highest quality. The advantage of this technology is that it filters colors precisely to give the best quality output. This technology offers pure reds that are not adulterated by orange and yellow colors.

OLED – Organic LED technology

An OLED TV screen works the same as an LED TV screen. However, an LED panel requires a dedicated backlight setup to produce light. On the other hand, an OLED panel can produce its own light. All this is possible thanks to specially constructed OLED diodes.

An OLED diode is made up of six different layers, two of which retain organic properties. When current passes through these diodes, these organic layers produce light which passes through a color refiner which produces an image on the screen. Since these panels do not require a backlit setup, TV manufacturers can eliminate the extra clutter and make OLED TVs considerably thinner than LED TVs.

Being the latest in TV technology, OLED TVs come with higher contrast levels, wider viewing angles, and they are thinner and more flexible.

LG OLED evo TV promises crisp picture, quick response when playing games, smooth movement and slim design. It also boasts of Dolby Vision IQ which intelligently adjusts picture settings according to the genre of content and surrounding environment, while Dolby Atmos offers multi-dimensional surround sound.

Keep it here as we discuss TVs over the next few weeks with a special focus on LG TVs which are some of the best in terms of quality and innovative technology.


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