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Whats the Difference Between LCD And LED?

3 min read
lcd vs led

With the rising use of smartphones, people have started contemplating every part of them before they buy one. Display/Screen of a smartphone is the main concern when buying one. Not only is the screen, the most power-consuming part of the mobile phone, but it also regulates the display effect of the mobile phone. There have been various types of screens that are introduced up till now. The most common screens of smartphones are OLED screen or LCD screen. Considering this, we need to know the difference between the LCD screen and OLED screen.

The basic knowledge of OLED and LCD screens:

There is a major difference between LCD and OLED screens. Before buying a phone, you should go through the specifications of it and see what you are going to buy. One needs to remember that LCD (Liquid Crystal Display) is the one in which display is achieved by emitting light of Liquid Crystal, while the OLED (Organic Light – Emitting Diode) emits lights once it is electrified. This is the main difference, that the LCD needs to use a backlit to illuminate the screen, while OLED is responsible for producing light itself.

Parts inside an LCD and OLED

When comparing the LCD display with OLED we get to know that it does need external light. This feature makes it responsible for reducing the number of CCFL back-lit modules, and also the TFT glass. These are the features because of which the structure of the OLED display is simpler, light, and power-saving. Nowadays, every smartphone uses its full screen and the era we are living in is called the full-screen era. Thus, OLED displays are more popular. These screens come with the fingerprint recognition technology and for that technology to work properly the display should be thinner. These are the reasons why the OLED display is preferred these days and considered more suitable for smartphones.

Different Sections of LCD AND OLED

It is said that not all OLED displays are perfect. The LCD screen has 3-panel types: TN, VA, IPS whereas the OLED has 2 types: AM active type and PM passive type. It is true that the AMOLED plays a dominant role in the market, but the AMOLED display effect still varies from manufacturer to manufacturer. it depends on the manufacturer how good he is or how well can he manufacture a safe screen with perfect features.

AMOLED, OLED and LCD Display

Why does AMOLED have a different display effect?

Talking about the downsides of AMOLED, the first thing that comes to mind is the P array, also known as the Pentile array. The first company to massively produce OLED panels along with P array was Samsung. The Galaxy S4 first used the P array called Diamond Pixel. Although it headed down a different path with the standard RGB alignment.

RGB (L) and Pentile (R)

The P array is not considered as clear as RGB. It has a lower pixel density than that of RGB. As RGB arranges the subpixels of three or original colors of red green and blue. That is why even with the same resolution the P array does not give the same result as that of RGB.

Samsung (L) VS iPhone X (R)

It is known that the P array of OLED has its advantages and disadvantages. These directly influence the display effect. solving this problem via changing materials is not recommended but the manufacturers can surely improve their screen resolutions. This is what Samsung has been doing. From Galaxy S6 to now, Samsung has been using 2K resolution OLED panels. The resolution of Galaxy S9 / S9+ / Note 9 is 500+ PPI, and it went up to 570 PPI When Samsung Galaxy S9 was launched. On the other hand, the resolution on the iPhone XS and iPhone XS Max is 458 PPI, which keeps the level since the launch of the iPhone X.

Wrapping up

Summing up we have concluded that after comparing both, the LCD display and OLED display, the later has obvious technical advantages. That is why it has become an inevitable trend for smartphone manufacturers to use OLED screens. According to recent statistics, nearly 200 million smartphones with AMOLED panels were shipped worldwide in the first half of 2018. This number accounts for 21% of the global smartphone market. In the future more and more OLED phones will come.

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