Liquid Crystal Display (LCD) and Light Emitting Diode (LED) are the two most popular screen types for smartphones today. Both of these alternatives have advantages and disadvantages, but before we look at them, it's important to understand how they function, as this has an effect on their suitability.

LCD (Liquid Crystal Display) technology is the pillar of today's computer displays, laptops, and smartphones. Right now, you're probably reading this article on a computer screen or smartphone.

A panel of liquid crystal molecules makes up a liquid crystal display. An electric current is then passed through them, causing them to either allow light to pass through or completely block it. White allows all light to pass through, while black fully blocks it. 

Colors are generated by the transition from completely off to completely on. It's important to remember that the liquid crystals don't generate any light of their own but need a backlight to shine through.

An LED screen works similarly to an LCD screen, but instead of liquid crystal, it uses light-emitting diodes. These diodes emit light when an electric current passes through them, so they don't need a backlight and can be completely switched off when no light is required. Most smartphones use AMOLED (Active Matrix Organic LED) displays, which are extremely thin due to the use of organic polymers.

The advantages and disadvantages of LCD and LED screens for smartphones

Let us begin with the LCD display. To begin with, they are less expensive to manufacture, which is why they are commonly used in mid-range and low-cost phones. In addition, they provide a better display in direct sunlight. 

However, the fact that they use up your battery faster due to the backlight must be considered. They also have a tendency to be bulkier and heavier (although this latter factor is becoming less so with advances in technology and manufacturing).

Now we'll move on to the LED display. This technology is lighter and smaller, and it produces better images when viewing dark images or videos. 

Since individual diodes can be switched off, it also provides pure blacks. This also ensures that an LED screen uses less battery than an LCD screen, which is now being taken advantage of with Android 10's Dark mode. 

The only real disadvantage of an LED screen is its high price, which is why they are more often used in high-end phones rather than low-cost models.

So, which is the best option?

LCD screens are becoming thinner and more power-efficient as time goes on, while LED screens are becoming more affordable. As a result, the distance between them is narrowing. Manufacturers' use of LED screens in their top-end handsets, however, suggests that these are possibly the better choice. 

Aside from power consumption and the show of pure blacks, ordinary users will struggle to say the difference in a blind test.

Most people consider the phone's design aesthetics first, then if it has the camera, processor, and battery they need, and finally the screen style. Despite this, it's still a good idea to consider screen style, and if you're choosing between two very similar phones, choose the one with an LED screen.

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