You must have seen the monitor of your computer, but there are many such monitors in the world which you have hardly seen.

In this article you will know what is Monitor (Monitor in Hindi) and how it works. You will know all the information related to the monitor in this article.

In the year 1964, the first monitor was made which was made of CRT (Cathode Ray Tube) and today we have advanced monitors like LCD (Liquid Crystal Display) with touch screen.

Monitors have changed a lot with the change of time, earlier monitors with black and white screens used to come, but in today’s time it is not seen anywhere. So let’s know what is a monitor ?

Monitor is an electronic output device also known as VDT (Video Display Device) or VDU (Video Display Unit). It is used to show Images, Videos, Text, and Graphic Information.

Monitors are similar to TVs in appearance, but the resolution of the monitor is more than the TV. On March 1, 1973, the first computer monitor was made by the Xerox Alto company.

Fluorescent Screen and CRT (Cathode Ray Tube) were used to make the old monitors, due to which the monitors were very large in size and the weight of those monitors was also very high.

But in today’s time, Flat Panel Display technology and LCD are used to make every monitor. Due to this the size of monitors has become smaller than before.

These are of three types depending on the color shown on the monitor.

Monochrome:-

Mono means single and Chrome means color, so monochrome means single color. This type of computer monitor could show only two colors as output, Black and White.

Grey-Scale:-

This type of monitor is similar to monochrome monitor but its output is in Gray Shade color.

Color Monitor:-

This type of Monitors shows the combination of RGB (Red Green Blue) colors in different color outputs.

According to the capacity of the computer memory, these monitors can show output in 16 to 16 lakh different colors. The resolution of these types of monitors is also very high.

Function of Monitor:-

The main function of the monitor is to show the output on the screen, the computer monitor is connected to the video graphics card of the computer. When the video card converts the binary information into images, then these images are shown as output on the connected monitor.

Similarly, when the video card processes a video and converts the binary information (0s and 1s) into video form, the monitor adapter that is connected to the video card displays the video on the screen.

Monitor is also used for this reason so that users can easily interact with the machine i.e. computer.

Types of Monitor:-

There are many types of computer monitors, so let’s know about the most used monitors.

• CRT Monitor (Cathode Ray Tube)
• LCD Monitor (Liquid Crystal Display)
• LED Monitor (Light Emitting Diode)
• OLED Monitor
• Plasma Monitor

CRT Monitor:-

Vacuum Tubes, Heaters, Electron Guns, Deflection Circuit, and Glass Screen are used to make CRT Monitors. Images and videos are displayed on the monitor screen using Cathode RayTube.

First the electron is produced inside the Cathode Ray Tubes, after that the electron is released on the monitor screen, due to which the screen glows and we see images and videos.

CRT Monitors are not used in today’s time, it was used earlier, in its place LED and LCD Monitors are being used a lot.

LCD Moniter:-

The full form of LCD is Liquid Crystal Display, in which Monochrome Pixels are used to produce pictures.

These Pixels are arranged between the Transparent Electrode and the Polarizing Filter. After that the Pixels are polarized which produces images on the screen.

Its most important thing is that it produces very good graphics quality using less energy. Its size ranges from 17 inch to 60 inch and it is used a lot in today’s time.

LED Moniter:-

The full name of LED is Light Emitting Diode, as its name suggests, it uses Diode to produce images through Back Lighting. It is made up of Flat Screen and Flat Panel.

Compared to CRT and LCD, LED uses much less energy. LED always produces images with higher contrast.

If we talk about its design, then it is a little thin and does not generate much heat and at the same time it is also environment friendly.

In today’s time, its use is given the most. But it is quite expensive, its only downside.

OLED Moniter:-

The full name of OLED is Organic Light Emitting Diode, it is made of organic material such as Polymer, Plastic, and Carbon.

To produce images for OLED, there is no need to give back lighting i.e. separately.

This is the most advanced technology of today’s time and it is also quite expensive. Its Contrast Level and Wide Viewing Angle are quite amazing.

Plasma Moniter:-

Plasma Monitor is a type of Flat Panel Display which consists of small cells and those cells contain Plasma (a type of Ionized gas).

Plasma Monitor was the first monitor with Flat Panel Display. It is also very light and thin, at the same time it consumes low power.

In this, three colors and gas are used to produce images. Those three colors are Red, Green, Blue as well as the noble gases Xenon and Neon are also used to produce the images.

Below is a list of some of the most advanced monitors of the future.

• Organic Light-Emitting Transistor (OLET)
• Surface Conduction Electron Emitter Display (SED)
• Field Emission Display (FED)
• Laser TV (Quantum Dot Liquid Crystal)
• Ferro Liquid Display (FLD)
• Thick Film Dielectric Electroluminescent (TDEL)
• Telescopic Pixel Display (TPD)
• Laser Phosphor Display (LPD)
• MicroLED
• Quantum Dot Display (QD-LED)

Characteristics of Monitor:-

If you go to buy a monitor, then definitely keep in mind the features mentioned below such as what is Resolution, Refresh Rate, Bit Mapping, and Interlacing.

1. Resolution 

The higher the resolution in the display of any monitor, the clearer the picture will look. Monitor displays are made of small pixels, these Pixels are of Red, Green, and Blue color.

Pixels are present horizontally and vertically in the display of the monitor. For example, if the display resolution of your computer monitor is 840 x 620, then it means that your monitor has 840 pixels horizontally and 620 pixels vertically.

Multiplying 840 x 620 gives 520,800 This means that your monitor has a total of 520,800 Pixels. The more pixels in the monitor display, the better will be the resolution of the monitor.

2. Bit Mapping 

In the old monitors, only text was displayed, so there were limited pixels in it, but in today’s advanced monitors, videos and images are also shown along with text. That’s why Bit Mapping was created to show text and images together.

Bit Map Graphics is controlled by each Pixal Operator to produce good Image Quality. This is called Bit Mapping.

3. Refresh Rate 

The image you see on the screen of the monitor is not loaded onto the screen in a jiffy, but it loads pixel by pixel from right to left and from top to bottom in a few milliseconds. This is called Refresh Rate.

Dot Pitch is a type of measurement unit in which the distance between the pixels is measured in millimeters. The smaller the distance between the pixels, the faster the pixel will load on the screen.

4. Interlacing

When the image is loaded on the monitor screen, it is scanned Line by Line, this is called Interlacing. With this technique, the resolution of the image increases significantly.

2 pass (step) is used to load the image. In the first pass the image is scanned and the image is loaded leaving a line, after that the missing line is loaded in the second pass. With this the entire image gets loaded on the screen.

Coclusion :-

We hope that after reading this article (What is Monitor), you must have got answers to many questions related to your monitor.