What is LCD :- As we moved towards the modern world, our needs also changed. If we talk about the last few decades, television was not in the home of many people at that time and it used to be very big in size but in today’s time, with the science of technology, scientists have reduced its size and it has many All features have also been added. With which it looks attractive in appearance, the quality is also good. Similarly LCD which is a type of display.
In today’s time, most use LCD display only. Today, in this article, we will provide you detailed information about LCD and we will also provide detailed information about its type and features.
What is LCD
The full name of the LCD is Liquid Crystal Display. It was first discovered in 1888, but its trend has increased in India only in the last two decades. This is a technology that is used as a display, images of high quality are seen in this display. It uses a reflector for images in monochrome. With which pictures appear on the display. LCD is used day to day for various tasks, such as computer monitoring, television, digital camera, clock, calculator mobile phone etc.
Working principle of LCD
Here Black light provides even sources. Which produces light behind the screen. Inside it is filled with a liquid as well as solid material, which shines through the Liquid Crystal Layer. Twisted in it, apply Electrical Voltage and block the Polarized Light. When it is off, the red, green and blue light reflects and the entire system becomes active. The LCD screen contains Matrix which shows the picture on the screen. Earlier LCDs used to have Passive Matrix Screen which used to show the image in Row and Column. Screen nowadays uses Active Matrix technology such as Individual Pixal appears on the screen.
There are two types of LCD: –
1. Field Effect Display (FED)
2. Dynamic Scattering Display (DSD)
Field Effect Display (FED)
In this type of display, the Front and Back Polarizer are in a Right Angle and are connected with each other by 90 degrees. It receives light without electrical excitation and a reflection is generated from the Front Polarizer.
Dynamic Scattering Display (DSD)
This type of display is mainly sandwiched with pieces of glass in which a very thin layer of LC Material is placed in the middle. Transparent Conductive Coding is done on the inside of the glass, so that it can be seen across. When we apply voltage to it, the liquid crystal Molecular automatically activates itself and starts to move around.
How color pixels work in LCD TVs
Switching off Pixels: – A Horizontally Polarized Filter is placed in front of Light and it blocks. Which does not generate LightWave and contains Horizontally Vibration. Due to this, no light can reach the screen and the Pixels of this screen switch off.
Switching on Pixels: – There is a bright light behind the screen which is placed in front of the Horizontally Polarized Filter and advances the LightWave. In this way, horizontally vibration is generated, followed by a transistor Switch On. In this, tests of Red, Blue, and Green Filter produce color, and Display is turned on.
Benefits of LCD
- Pictures appear very high quality on LCD, in which the image appears clear.
- It shows Zero Geometric Distruction which acts as a panel in Native Resolution.
- The bright image appears due to the image having a high pick intensity.
- Display completion is flat and it is thin in shape.
- It has very small footprints, due to which very little electrical consumption is done.
- The display does not get hot.
- Here the panels are already set in Pixel Resolution Format, this cannot be changed while creating.
- It is more expensive than other displays.
- There is a possibility of malfunction due to excessive over load.
- It takes more time to scan rate.
- The use of LCDs is increasing day by day, today human beings have made many types of LCDs in their daily life, which is as follows: –
- mobile phone
- Instrument Panel
- aircraft etc.
Difference between LCD and Plasma
- The plasma screen looks like an LCD screen but performs a completely different function. It works like a Pixal Effective Microscopic Fluorescent Lamp but there is nothing of this kind in the LCD.
- Plasma screen gets very hot and gas starts to generate but LCD is very hot and no gas is produced from it.
- Plasma screens are made very large and LCD screens are small in size. Plasma screens are expensive and LCD screens are cheaper than plasma screens.
Today we have shared detailed information about What is LCD – Full Form Of LCD through this Articale and tried to answer many questions related to it. We hope that this Articale will prove to be very useful for you. If there is still any doubt in your mind related to the information given in Articale, then you can ask by commenting in the Comment box. Our team will go to the earliest effort to clear your doubt.