What is LCD and What is its full form?

If you know a little bit about some new information, then it will also be known that what is LCD (What is LCD)?

The full name of LCD is “Liquid Crystal Display“. It is usually based on flat panel display technology.

The purpose behind making it is mainly to use it in computer monitors, mobile screens and TVs. Apart from this, it is also to be used for the screen of laptop and smartphone.

In today’s time, every person uses various types of means for entertainment. that his
performs a variety of tasks for entertainment, such as using a mobile phone, using a TV and
Circus etc. In today’s time every person has become modern.

So they mostly use TV and smart phones for their entertainment. With the passage of time each and every person is using some advanced technology. Today we are going to tell you about the advanced form of TV through this, LCD.

Do you know, what is LCD, what is its use, on which technology it works and what are its advantages and disadvantages. If you do not know about all these, then this article is going to be very important for you, then please read this important article written by us till the end.

What is LCD?

The advanced form of TV is called LCD. This is the TV itself, but it is much more advanced than the old CRT TV. LCD does not work on the technology of the old TV but on the new technology of modern times.

It is a type of screen, which is used in many electronic products such as watches, DVD players, TVs, video games, tablets, computers, mobile phones, etc.

It is a type of optical device that produces images in monochrome and displays them on a display. The task of producing pictures in monochrome is done by the liquid crystal.

LCD works on very low power and along with this the video quality of LCD is also very good.

LCD TVs are much thinner than CRT TVs. LCD TV does not display pictures by itself, but reflects the light falling on it with the help of another source, due to this action the picture is displayed.

What is the full name of LCD?

As we know, it is filled with a type of liquid crystal through which pictures are displayed in monochrome. Due to the presence of liquid crystal in it, it is known as liquid crystal display and this is its full name.

On what principles does LCD work?

When we call the electrical current entering the liquid crystal molecule, then it gets inside the molecule, which starts determining the angle of light and due to this the picture is displayed.

It is filled with liquid crystals, due to which different types of light are reflected from each place on the screen. While making this, a reflective mirror is put on the back side.

The anode made of indium tin oxide is placed at the top and the image display device is placed at the bottom, due to which different colors of light appear over the entire area of ​​the LCD.

How many types of LCD are there?

As we know, these are of many types, but they are mainly of two types.

  1. STN LCD
  2. DS LCD


The full name of STN LCD is super twisted nematic liquid crystal display. Multiple Layers in LCD
, which is between two parts of the particles (molecules).

All layers are rotated at the same angle by liquid crystal molecules, with the final layer of liquid crystal molecules rotating the rotation angle at an angle greater than 90 degrees (180 – 240).


Its full name is dynamic scattering liquid crystal display. Layers of liquid crystal molecules are coated with a substance inside a very thin glass, into which the LCD’s molecules automatically reset when electricity enters the screen and the picture appears on the screen.

When was LCD invented?

The LCD was invented by George Harry Helmeyer and his entire team.

The most prominent name in its invention is considered to be that of George Harry Helmeyer. Although it took a lot of time to be invented, yet LCD TV was made available to the common people in the year 1968.

After hard work, George Harry Helmeyer made many small modifications on the CRT TV and gave it the form of LCD. That is, the greatest contribution in the discovery of LCD TV is of George Harry Helmeyer and its theory was also given by him.

What are the advantages of LCD :-

You must have come to know above that what are its benefits, but still, if you have not understood about its benefits, then the advantages of LCD are written below as follows.

  • They run on less power than CRT TVs and this saves electricity.
  • LCD TVs are much thinner and weigh less than CRT TVs.
  • Its video quality is very good, whereas the video quality of CRT TV is not so good.
  • The cost of LED is very less.
  • The video graphics of this are very smooth and good.
  • Due to the heavy liquid crystal in it, the pictures shown in it are very clear and bright.
  • LCD TVs are not very bulky as compared to CRT TVs, due to which its popularity is getting very high.

Disadvantages of LCD :-

Now whatever things we use in our daily life, they have some disadvantages along with their advantages.

Happens also. In such a situation, have you ever thought, what are the disadvantages of LCD to us, if not, then let us tell you,

  • The biggest thing is that LCD TVs are somewhat more expensive than CRT TVs, that is why poor people cannot buy it.
  • Its temperature is limited to its running, after that it becomes cold and can deteriorate very soon if not used.
  • It requires an AC drive to run, without it it cannot run.
  • It is not considered good for low light places because the colors of its pictures decrease in low light places.
  • It also requires other sources of light, which is why LCD TVs display pictures.

How much does the market price of LCD start from?

As we know, LCDs are sold at very expensive prices, that’s why poor people cannot buy it. To get such people LCD TV, there are many such companies, which sell LCD TV in the markets at very low prices.

Such LCDs last for a very short time, about 2 to 3 years. So let us tell you about the price of LCD TV sold in the market. CD TVs are sold from ₹ 4000 to lakhs of rupees.

Some companies making LCD TVs :-

There are many companies manufacturing LCD TVs, some of them are listed below.

  • LG company
  • Samsung company
  • Apple company
  • HP company

There are many such companies for making LCD TVs, all of which are difficult to describe, so write the names of some companies above, which are very popular.


Those who do not have much knowledge about this subject, we have told here what is LCD TV. Apart from this, it was also told on what principles it works and how many types are there.

We hope that you liked this important article written by us very much.
If so, please share this article with your friends and family members.

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