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Generally, it is assumed that touchscreen and LCD screen are the same, although as we see in the article, there are notable differences.

In fact, it is also believed that when you have a tablet or a mobile phone, you have a single screen.

In reality, this type of technology works with two types of screens that are usually assembled into a single piece.

Both technologies complement each other. Nowadays, most mobile devices on the planet, in addition to laptop screens and some television screens, are optimized to be touch-sensitive.

That is to say, they can be used with fingers, gloves, or rubber-tipped pens.

In this case, we look at the difference between touchscreen and LCD screen.

What is and how does a touchscreen or touch digitizer work?

Researchers developed a glass panel, behind which there was a glass layer that interpreted the contact of the person?s fingers. Years later, they managed to develop a multi-touch category screen, optimized to "feel" finger activity.

The concept of "feel" refers to the "sensory" part that the screen optimization has. That is to say, it is no longer about technology as an optimized camera interacting based on an algorithm.

It refers to the screen perceiving the press on its surface and having an effect.

This effect is naturally the activity we indicate on the screen. This type of screen is usually quite thin, despite being developed in glass. What happens is that when pressure is applied to the glass, the system interprets the press.

This simplifies the sensory condition of the screen. For that reason, as it is a glass optimized to be sensitive, it sometimes breaks and has no effect on the mobile's functionality, and it does not respond correctly.

The glass maintains its essence, its optimization, despite being fragmented.

What is and what is an LCD screen or display for?

What happens with LCD screens is that they are a more advanced technology. The LCD screen is the one that contains the liquid that materializes the quality of the pixels.

The pixels are the entire key architecture projected on the screen, which defines the brightness.

The LCD screen is located just below the touchscreen.

So when there is a press on the glass screen, the second layer recognizes this press and links this activity to all the software architecture the mobile has.

The LCD screen is the very essence of the phone. For that reason, special care must be taken to prevent falls from causing the liquid and incorporated technology to destroy its utility. Being below the glass touchscreen, its protection is backed up.

We now see that there is really no glass screen, but rather you are facing the LCD screen. Possibly, we would be tempted to try what would happen if we pressed on this screen.

By doing so, we see that the liquid in this screen expands and returns to normal once you lift your finger.

Perhaps you have done this test with the old screen of a PC. You might even have wondered why, if you are pressing on an icon, the system does not respond. This is precisely because in that case, the screen only works to display images.

But it needs the technology of a touchscreen to really have an effect.

What type of screen do mobiles and tablets use?

This question is practically answered in the previous section, although we see a few more details.

And what better way than comparing the touchscreen system with what the click you make with the mouse on a computer represents. In the operating system, everything is designed so that the click generates a reaction.

When work on the concept of the touchscreen began, the goal was precisely to make the user's fingers function as a mouse.

And in fact, to some extent, it could have been achieved if the press were made directly on the LCD screen.

Only in that case, constant presses on the screen structure would have caused the appearance of stains. So the idea of the touchscreen arose precisely to prevent this problem from occurring.

That is why the touchscreen and the LCD screen work together.

If the touchscreen breaks when dropped, it is very likely that it will continue to "function."

But if the impact is strong enough to cause damage to the LCD screen, then the issue becomes complicated as it may not display correctly or lines may appear.

In our mobile and tablet spare parts store, you can find complete screens, touchscreens, or LCD screens for recent models, including devices from 2023 and 2024.

In summary, modern mobiles and tablets work with two screens: the touchscreen and the LCD.