LCD SCREENS:

 LCD SCREENS:

 

Liquid-crystal-display televisions (LCD TVs) are television sets that use liquid-crystal displays to produce images. They are, by far, the most widely produced and sold television display type.

 The TV world is a minefield of different buzzwords, acronyms and abbreviations, and that can make choosing a new television a very tricky business indeed.

Even the slightest differences in an acronym can represent huge differences in TV technology and therefore performance. Take 'OLED' and 'LED', for example: that one extra letter represents a vast upgrade. Then there's 'LED' and 'LCD': just one swapped letter but these are completely different technologies.

So, what is an OLED TV? How is it better than an LED TV? Why does no-one talk about LCD TVs anymore, despite that still being the most commonly bought type of TV?

 

What is an OLED?

OLED (Organic Light Emitting Diodes) is a flat light emitting technology, made by placing a series of organic thin films between two conductors. When electrical current is applied, a bright light is emitted. OLEDs are emissive displays that do not require a backlight and so are thinner and more efficient than LCD displays (which do require a white backlight).

 

What is an LCD (Liquid Crystal Display)?

A liquid crystal display or LCD draws its definition from its name itself. It is a combination of two states of matter, the solid and the liquid. LCD uses a liquid crystal to produce a visible image.

Liquid crystal displays are super-thin technology display screens that are generally used in laptop computer screens, TVs, cell phones, and portable video games. LCD’s technologies allow displays to be much thinner when compared to a cathode ray tube (CRT) technology.

LCD TVs are thin and light, but have some disadvantages compared to other display types such as high-power consumption, poorer contrast ratio, and inferior color gamut.

 

What is an LED (Light Emitting Diode)?

A LED display is a flat panel display that uses an array of light-emitting diodes as pixels for a video display. Their brightness allows them to be used outdoors where they are visible in the sun for store signs and billboards.

 

led vs LCD:


LED

LCD

Uses a liquid-crystal display with an LED backlight.

Uses a liquid-crystal display with a fluorescent backlight.

More energy efficient.

Uses more energy.

Lighter sets at the same size (especially with edge-lit displays).

TVs weigh more.

More expensive.

More affordable, generally cheaper because the technology is older.

Easier to find.

Hard to find.

Edge-lighting provides a lighter and thinner TV set.

Fluorescent backlight adds bulk and weight.

 

FINAL VERDICT:

When it comes to picture quality, LED TVs look better than older LCD TVs. Manufacturers also make a big deal out of LED backlighting because sets that use the technology are usually more energy-efficient than CCFL LCD TVs. Therefore, the money you save on your power bill could eventually offset the extra cost of an LED TV.

You'll be happy with the picture regardless of what kind of display you buy. Still, LEDs have a few practical advantages that make them a better purchase than the older LCDs.

 

OLED vs LCD

An OLED display have the following advantages over an LCD display:

 

·       Improved image quality - better contrast, higher brightness, fuller viewing angle, a wider color range and much faster refresh rates.

·       Lower power consumption.

·       Simpler design that enables ultra-thin, flexible, foldable and transparent displays

·       Better durability - OLEDs are very durable and can operate in a broader temperature range

 

The future - flexible and transparent OLED displays

As we said, OLEDs can be used to create flexible and transparent displays. This is pretty exciting as it opens up a whole world of possibilities:

 

·       Curved OLED displays, placed on non-flat surfaces

·       Wearable OLEDs

·       Foldable OLEDs and roll able OLEDs which can be used to create new mobile devices

·       Transparent OLEDs embedded in windows or car windshields

·       And many more we cannot even imagine today...

 



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