What is Monitor? Types, Parts, Function, Use & Features

Have you ever watched videos or played games on a large screen that displays information from a computer? The term “monitor” refers to the large screen. Monitors act as windows to the digital world, enabling us to use computers in a vibrant, engaging manner. 

From traditional ones to the contemporary ones that are incredibly thin and dazzling, they have undergone significant modification over time. In this post, we’ll discover everything there is to know about monitors, including the numerous types they come in, the crucial components they contain, the fun features they can perform, how to utilise them, and their unique qualities. Therefore, let’s begin discovering the amazing world of monitors!

what is monitor?

What is monitor?

What is monitor? Information from computers, laptops, and other devices is displayed on a special kind of screen called a monitor. It resembles a television screen and serves as our primary window into the computer. When using a computer, your eyes are actually fixed on the monitor as you watch a video, read a document, or play a game.

Related: Is a Monitor an Input or Output Device?

Importance in Modern Computing and Multimedia

In the modern world, monitors are crucial because they enable us to interact with computers and other digital devices. It would be challenging to play a game or browse the internet without the ability to see anything on a screen. We can see all the incredible things our computers are capable of thanks to monitors.

In truth, multimedia also heavily utilizes monitors. Using a variety of media to share information, such as images, videos, and sounds, is referred to as multimedia. Think about how you need a monitor to see all the vibrant pictures and moving scenery when you watch a movie or look at photos from your most recent vacation.

Monitors have advanced along with technological advancement. They can now display visuals that are incredibly vivid, detailed, and in some cases, three-dimensional. Therefore, monitors are available to bring the digital world right in front of your eyes whether you’re working, playing, or just enjoying some pleasure!

History of monitor

When computers were first invented, a long time ago, monitors looked substantially different from what they do today. The early monitors were large, hefty boxes with a large front glass screen. The displays have the designation CRT.

These early monitors were large and occupied a lot of desk space. To produce the images that appeared on the screen, they used a unique technique that contained tubes. Pixels, which are very little light specks, were used to create these images. However, these monitors lacked good sharpness, and occasionally the images would flicker.

As technology improved throughout time, monitors started to change. Thinner and lighter monitors have been produced. Liquid Crystal Display, or LCD, technology was utilised in these revolutionary displays. Compared to the outdated CRT monitors, LCD monitors were flatter and used less electricity. They improved picture clarity and eliminated flickering, unlike the previous monitors.

Then, LED monitors brought forth another revolution. Light-emitting diode, or LED. Because of the unique lighting employed by these monitors, colours appear more vivid and consume less energy. Because they were even thinner and more aesthetically pleasing than LCD displays, LED monitors quickly gained popularity.

These days, monitors are used with computers and resemble ultra-thin TVs. They can display images that are incredibly clear, vibrant, and in some cases, even 3D. The bulky, hefty boxes that monitors formerly were have undergone significant change. They are a crucial component of how we use computers to work, play games, watch films, and perform a variety of other tasks.

Monitor inventors and contributors

  1. Karl Ferdinand Braun (1850-1918)
  • Invention: Cathode Ray Tube (CRT)
  • Date: In the late 19th century (exact date not specified)

2. Vladimir K. Zworykin (1888-1982)

  • Invention: Iconoscope (a type of camera tube) and Kinescope (a type of CRT)
  • Date: Iconoscope in 1923, Kinescope in the 1930s

3. Alan Shugart (1930-2006)

  • Invention: Miniature CRT Display
  • Date: Around the 1960s

4. Jack Kilby (1923-2005) and Robert Noyce (1927-1990)

  • Invention: Integrated Circuit (IC) / Microchip
  • Date: 1958 (Kilby) and 1959 (Noyce)

5. Maurice Karnaugh (1924-2019)

  • Contribution: Karnaugh Map (K-map)
  • Date: 1953

6. E. A. Johnson

  • Contribution: introduced touch screen display
  • Date: 1965

7. James P. Mitchell

Invention: LED screen display

Date: 1977

8. VGA monitor , IBM 8513 

Invention: IBM

Date: 1987

9. NEC Home Electronics 

Invention: SVGA (Super VGA)

Date: 1988

10. Apple

Invention: Apple Studio Display

Date: 1998

11. Jaff Han

Invention: Touch screen computer monitor

Date: 2006

history of monitor

Types of Monitor

There are various monitor types. Here is a list of them. Let’s read more about each of these monitor types. 

CRT (Cathode Ray Tube) monitors

The original computer screens were CRT monitors. They were large, hefty boxes that contained screens. On these screens, images were displayed utilising tiny light dots. CRT monitors had excellent colour reproduction but were bulky and energy-intensive. Because modern screens are better and thinner, they are hardly used today.


  • Showed colors well.
  • Used to be cheaper.


  • Heavy and big.
  • Screen could flicker.
  • Used more energy.

LCD Monitors (Liquid Crystal Display)

An LCD monitor is a flat, light-weight screen. Similar to a television, but for computers. Special liquid crystals inside create the colours and images. Because they use less power and display crisp images, LCD monitors are a smart choice. They are superior to the previous bulky displays.

  • Advantages

These are thinner and lighter. They use less energy and show clearer pictures. They don’t flicker like CRT monitors.

  • Disadvantages

Sometimes, the colors may not be as vibrant, especially in older models.

LED Monitors (Light Emitting Diode)

Like a computer TV, an LED monitor has a thin screen. It displays images using specialised lighting known as LEDs. LED monitors are cool because their colours are vivid and lovely. Additionally, they don’t consume much electricity, which is excellent for the environment. They are superior to LCD monitors in every way!

  • Advantages

These are like LCD monitors but with even better colors. They use less power and can be really thin.

  • Disadvantages

It might be a bit more expensive, but the benefits often make up for the cost.

Curved Monitors

Screens on curved monitors have a slight bend to them, much like a rainbow. Unlike conventional screens, they are not flat. Things on the screen appear more wrapped around you on curved monitors. They feel more exciting, which makes them suitable for video games and movies. Because they differ from typical flat screens, some individuals really like them while others don’t.

  • Advantages

These screens curve a bit, making the experience more immersive. They’re good to play games and also for watching movies.

  • Disadvantages

They can cost more, and not everyone likes the curved look. Some people might find it odd at first.

Ultrawide Monitors

For PCs, ultra-wide displays have extremely wide screens. Compared to standard displays, they are substantially wider. With these monitors, you can view more things side by side, similar to using two screens at once. They are useful for both work and play, especially if you wish to multitask. They are loved by some since they are like having a large workplace, yet normal displays are preferred by others.

  • Advantages

These monitors are wider, so you can see more things side by side. It’s great for work and multitasking.

  • Disadvantages

They can be pricier, and not all software or games work well with the extra width.

Plasma Display Panel (PDP) Monitor

An example of a screen that produces images using tiny cells with gas inside is a plasma display panel (PDP) monitor. It is comparable to having a large number of tiny, color-changing lights. The use of these monitors for computers and TVs has decreased over time.


  • Showed colors really well.
  • Good for watching movies and playing games because of the high contrast.


  • Used a lot of electricity, so they weren’t energy-efficient.
  • Could sometimes get burn-in marks if an image stayed on the screen for a long time.
  • Heavier and thicker than newer types of monitors.

OLED Monitor

A unique kind of screen known as an OLED (Organic Light Emitting Diode) monitor produces images using small organic components. It resembles having a variety of little, switchable, colourful lights. OLED monitors are used in computers and TVs to display vivid, clear images.


  • Shows really bright and vibrant colors.
  • Can be super thin and lightweight.
  • Each pixel can turn on or off individually, making for deep blacks and high contrast.


  • Can be expensive to buy.
  • Over time, some parts of the screen might age differently, causing uneven brightness (burn-in).
  • Not as long-lasting as other types of monitors.
  • Some models might have issues with color accuracy over time.

TFT Monitor

The colour of each pixel is controlled by a small transistor on a TFT (Thin Film Transistor) monitor. On the screen, these transistors aid in producing images that are sharp and clear. Computer monitors, laptops, and other devices frequently use TFT displays.


  • Shows clear and sharp images.
  • Colors look good and accurate.
  • Can be made thin and lightweight, making them easy to move around.


  • Can be affected by viewing angles, meaning colors might look different if you’re not looking at the screen straight on.
  • In older models, motion might not look very smooth, causing blurriness in fast-moving images.
  • Some models might use more energy compared to other types of monitors.

DLP Monitor

A unique type of screen known as a DLP (Digital Light Processing) display produces images by reflecting light off of tiny mirrors. These mirrors have a rapid tilt that produces a variety of colors and tints. Projectors for presentations and home theaters sometimes incorporate DLP monitors.


  • shows visuals that are bright and clear.
  • works well with larger presentations or enormous displays like those found in theaters.
  • typically lives longer and there is less possibility of burn-in.


  • When you move your eyes fast, you could occasionally experience a “rainbow effect” where colors appear to slightly divide.
  • Not as good at capturing minute details in really dark scenes.
  • is susceptible to the “screen door effect,” which causes a grid of lines to appear between the pixels.

Touch Screen Monitor

When using a touch screen monitor, you can interact with it by touching the screen with your fingertips or a special stylus. It resembles a sizable digital tablet on which you may tap, slide, and draw directly. Mobile phones, tablets, and certain desktops all use these monitors.


  • Particularly for activities like tapping icons, typing, and sketching, it is simple and straightforward to use.
  • can save time because a mouse or keyboard aren’t always necessary.
  • excellent for interactive activities like drawing and playing games.


  • The screen can become filthy and more difficult to see due to fingerprints and smudges.
  • Accidental touches or problems with palm rejection can occasionally cause unintentional acts.
  • Compared to non-touch screens, continuous touching might cause the screen to deteriorate more quickly.
  • Touch screens might not always be as accurate as using a mouse or stylus.

Parts of Monitor and their Function

Here is a detailed explanation of every component of a monitor, along with what each one does. 

Internal parts of monitor

  1. Display Panel Technology
  • Internal Component: The primary technology, such as LCD or OLED, that generates images for display.
  • Features: influences viewing angles, color accuracy, picture quality, and energy efficiency.


  • Internal Component: The light source, which is frequently an LED (Light Emitting Diode) or other technology, underneath the display panel.
  • Features: Affects the monitor’s brightness, color uniformity, and power usage.

3. Pixels and Resolution

  • Internal Component: The amount of minuscule dots (resolution) that make up an image on the screen.
  • Features: More pixels deliver detailed photos, while higher resolution produces sharper sights.

Related: What is Resolution of Monitor?

4. Color Gamut

  • Internal Component: The palette that a monitor is capable of displaying.
  • Features: Wide color gamuts produce more accurate and brilliant colors, which are crucial for many jobs including media and design.

5. Refresh Rate and Response Time

  • Internal Component: Response time (how rapidly pixels change colours) and refresh rate (how quickly the screen updates).
  • Features: High refresh rates and quick responses improve fluid movements and lessen blur in frantic scenes.

6. Graphics Processing Unit (GPU)

  • Internal Component: A component of your computer that controls graphics and aids in image presentation on the monitor.
  • Features: Strong GPUs enable 3D graphics, boost overall performance, and enhance visual quality.

7. Internal Circuitry and Electronics

  • Internal Components: Components that regulate the behavior of the monitor, such as transistors and capacitors.
  • Features: These parts cooperate to guarantee correct display operation and to change settings.

External parts of monitor

  1. Display Panel

The actual screen on which pictures and videos are displayed is called a display panel. Millions of tiny dots called pixels make up its structure. The images you see are made when these pixels light up.

  1. Bezel and Frame

The border around the screen is called the bezel. It supports the frame and guards the display’s edges. The frame holds everything together and gives the monitor structural strength.

  1. Stand and Mounting Options

The monitor is supported by the stand, which maintains it perched upright on a desk. It frequently has height and angle adjustments so you may choose a comfortable viewing posture. For greater versatility, some monitors can also be placed on walls or arms.

  1. Ports and Connectivity

On the back of the display, there are ports like slots where cables can be plugged in. You can use them to connect your display to gadgets like computers, gaming systems, and speakers. HDMI, DisplayPort, USB, and audio jacks are examples of common ports.

  1. Buttons or Controls

These are typically found towards the monitor’s side or bottom. They enable you to change choices for brightness, contrast, volume, and colours. For a cleaner appearance, some monitors incorporate touch-sensitive controls.

  1. Backlight

A light source that is situated behind the display panel is called the backlight. The screen is illuminated so you can view the photos. To create this backlight, many technologies, such as LED or OLED, are applied.

  1. Power Supply

To function, monitors require electricity. The power supply takes the electricity that comes from the outlet and changes it so that the monitor can use it.

  1. Speakers 

Some monitors come with sound-playing speakers integrated right in. These speakers are useful for basic audio demands like watching videos or making video chats, even if they are not as powerful as standalone speakers.

  1. Touchscreen Layer (for touchscreens)

In monitors with touch screens, there is a touch-sensitive layer above the display panel. This layer recognises your actions when you tap or swipe on the screen and converts them into commands for the gadget.

uses of monitor

Uses of Monitor

Monitors are used for a variety of purposes and are essential in many facets of contemporary life. Here are a few typical applications for monitors.

Personal Computer

Computers and monitors are used together for daily operations including emailing, word processing, and internet browsing.


Video game players use displays to play games, frequently seeking out fast response times and high refresh rates for fluid and immersive gaming.


When watching movies, TV shows, streaming entertainment, and internet videos, monitors are used because they offer a wider and more detailed viewing experience.

Visual Arts and Multimedia

Professionals who work with design software, make graphics, edit photos and movies, and use monitors need precise colour representation.

Commercial Productivity

By enabling multitasking, presenting spreadsheets and presentations, and facilitating collaboration in virtual meetings, monitors aid professionals in doing more effective work.


For interactive learning, presentations, and access to instructional information, monitors are used in schools.

Health Imaging

In the medical field, specialised monitors are used to read X-rays, MRIs, and other medical pictures with extreme precision.

Sales Points and Retail

In shops and eateries, monitors are used to show menus, promotional material, and to speed up customer transactions.

Reception Areas

In control rooms, monitors are used to oversee and manage operations in sectors including security, energy, and transportation.

Electronic Signage

In order to improve communication, monitors are used to display messages, announcements, and information in public areas.

Remote employment and online meetings

In addition to being essential for virtual meetings and collaborations, monitors make remote work more convenient by offering a roomier and more comfortable workstation.

Creation of Content

Monitors are used by content producers for video editing, streaming setups, and content preparation, such as YouTubers and streamers.

Data gathering and analysis

In disciplines like science and finance, monitors are used for data analysis, research, and visualising complex information.

Employer-Side Applications

In factories and other industrial settings, monitors are used to keep an eye on equipment status, manufacturing processes, and data analysis.

Game Development and Design

Monitors are used by game developers when creating game assets, writing code, and testing games across many platforms.

Features of Monitor

Monitors come with various features that enhance their functionality and user experience. Here are some important features commonly found in monitors:


  • Feature: The amount of pixels used to create the display area of the screen (for example, 1920×1080 for Full HD).
  • Benefits: Images with higher resolutions are clearer and sharper, enhancing the visibility of details.

Refresh Rate

  • Feature: The frequency (measured in Hertz, such as 60Hz or 144Hz) at which the screen updates each second.
  • Benefits: Smoother motion in videos and games reduces motion blur. This is made possible by higher refresh rates.

Response Time

Feature: The rate at which pixels change color (in milliseconds, such as 1 or 5 ms).

Benefits: Fast-moving scenes appear sharper thanks to reduced motion blur caused by slower response times.

Gamut and Accuracy of Colour

Feature: The monitor’s capacity to accurately and comprehensively represent a wide spectrum of colours.

Benefits: For jobs like graphic design, photography, and video editing, accurate colour is essential.


  • Feature: The monitor’s brightness, expressed in nits, is a feature.
  • Benefits: Greater brightness boosts overall viewing quality and increases visibility in well-lit areas.

Contrast Ratio

  • Feature: The distinction between the screen’s darkest and brightest areas is known as the contrast ratio feature.
  • Benefits: Images with high contrast ratios are more colorful and exhibit higher contrast between light and dark areas.

Viewing Angles

  • Feature: The screen’s ability to be seen clearly from various angles is known as the viewing angles.
  • Benefits: Wider viewing angles ensure that colors and clarity are consistent when seen from the sides.

Panel Type

Feature: the display panel’s technology, such as IPS, TN, VA, etc.

Benefits: The colour accuracy, response speed, and viewing angles of various panel types vary.

HDR (High Dynamic Range)

Feature: For a more realistic image, the HDR (High Dynamic Range) feature boosts contrast and brightness.

Benefits: Better image quality with whites that are whiter and blacks that are deeper.

Connectivity Options

Feature: Different connectors, including HDMI, DisplayPort, USB, and audio jacks, are included among the connectivity options.

Benefits: Versatile connectivity for connecting a range of devices, including speakers, PCs, and game consoles.

Adjustability and Ergonomics

Feature: The monitor’s height, tilt, swivel, and pivot may all be changed.

Benefits: Flexible setting for relaxing viewing, easing neck and eye strain.

Blue Light Filter and Flicker-Free Technology

Feature: reduces flickering and blue light emission to lessen eye strain.

Benefits: Longer viewing sessions are more pleasant, especially when used at night or frequently.

Built-in Speakers

Feature: The monitor’s built-in speakers for audio.

Benefits: Fits basic audio requirements; does not require external speakers.

Features specific to gaming monitors

Feature: Technologies designed specifically for gaming, such as G-Sync, FreeSync, and game modes.

Benefits: Less screen tearing, more fluid gameplay, and gaming-specific aesthetics.

Together, these factors define a monitor’s functionality, adaptability for various jobs, and level of user pleasure. For the best viewing experience, it’s critical to select a monitor with the appropriate features based on your demands.

Monitor Facts

Listed below are some fascinating monitor facts:

First Computer Display

The “Cathode Ray Tube” (CRT) monitor was the name given to the very first computer display. Although it was big and heavy, it introduced computer screens to the world.

LCD versus LED

An example of an LCD monitor is an LED display. The backlighting method utilised by LED displays, which are more energy-efficient and capable of greater colour representation, is what makes a difference.

Widescreen displays and multitasking

With their larger panels, ultra-wide monitors are excellent for multitasking. They make surfing and working with numerous windows side by side more effective.

High Refresh Rates for Gaming

High refresh rates, like as 144Hz, are preferred by gamers because they provide smoother action, lessen motion blur, and improve the gaming experience.

Perfect Blacks on OLED

OLED displays have the ability to switch off specific pixels, producing flawless black levels. This results in outstanding contrast and vibrant images.

Technology for touchscreens

Touch is detected on touchscreen monitors using capacitive or resistive technology. Unlike resistive panels, which require pressure, capacitive screens react to the electrical charge of your finger.

Retina displays and pixel density

Apple coined the term “Retina Display” to characterise screens with a pixel density so high that it is difficult to distinguish individual pixels. The goal is to achieve an image sharpness that matches that of the human eye.

Curved Monitors’ Immersive Experience

Curved monitors simulate the way our eyes naturally bend, giving video games and films a more immersive experience. The goal is to keep your eyes at an even distance from the entire screen.

Technology Using Quantum Dots

Nanometer-sized semiconductor particles known as quantum dots are sometimes employed in monitors to improve brightness and colour accuracy.

Observe ergonomics

For ergonomics, monitor stands that can be adjusted are crucial. Long hours of use are easier on your neck and eyes if the height and angle are correct.

Setups for many monitors

In order to boost productivity, some users set up multiple monitors. They are able to run many programmes simultaneously on various screens thanks to this.

Monitor Calibration

Tools for monitor calibration are frequently used by professional graphic designers and photographers to ensure proper colour representation in their work.

Observers in Space

On the International Space Station, monitors are employed for a variety of purposes, including scientific research, communication, and navigation.

Changes in Thickness

Observers are now exceedingly thin. You can see how far technology has advanced by contrasting current monitors with older CRT monitors.

Non-touch Interaction

Now that some cutting-edge monitors and displays use touchless interaction technology, you can operate the screen without actually touching it.


In conclusion, monitors serve as more than just unique computer screens. They exist in various varieties, such as older CRT models and more modern LCD or LED models. Parts inside and outside of monitors interact with one another. They are crucial for displaying images and movies as well as for assisting us in many activities, like as working and playing games. Clear colours and movable stands are two elements of monitors that improve them. They play a significant role in our daily use of technology.

FAQs – what is monitor? 

What are the 4 parts of a monitor?

Circuitry, a screen, a power source, buttons to change the screen’s settings, and a housing that houses everything make up a monitor. The words “monitor” and “screen” are interchangeable nouns when referring to a computer’s “screen” and “display.”

What are 3 monitors for?

Consider the fact that I currently utilise a three-monitor configuration to review and compare spreadsheets, write and research articles, watch Netflix, monitor my social media, and do a lot more. I can assure you that my triple monitor configuration has greatly increased both my productivity and work-related ease.

What are the most common monitor types?

The most common type of monitor nowadays is LCD. In order to organize the liquid between the two glass panes that make up an LCD monitor, hundreds of rows of pixels are used.

What is the function of LCD monitor?

Preset text, figures, and seven-segment displays (such in a digital clock) are a few examples of devices utilising these displays. LCDs are also available to display fixed pictures with little information content, which can be displayed or hidden.

How many types of monitors do?

However, there are now many various kinds of computer displays available, including CRT, LCD, TFT, LED, Touchscreen, Plasma Screen, and OLED monitors.

What are the connectors on a monitor?

The most prevalent monitor ports and cables are HDMI, DisplayPort, and USB-CTM, and you can find them on the majority of contemporary screens. However, if you need to connect to older devices, legacy methods like VGA and DVI are also accessible.

What is the function of multiple monitors?

Users can simply accomplish more on their PCs at once by using dual displays. With the exception of the cost of a second monitor, most modern PCs can readily connect to a second display. A second display would be useful for anyone who uses a computer for extended periods of time.

Read more: What is Monitor? Types, Parts, Function, Use & Features

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