What is Projector in Computer?

Projectors in Computer 

A Projector is an alternative to a monitor or television for presenting images to a wide audience is an output device called a projector that can be connected to a computer. It projects images from a computer or Blu-ray player onto a wall white screen or any other big surface. Numerous sizes and forms of projectors are available, and they are utilized in a variety of settings, including offices, movie theaters, training rooms, and classrooms.

What is Projector in Computer

David Hansen received a patent for the first carousel slide projector on May 11, 1965. Gene Dolgoff invented the digital projector in 1984.


The projector produces enlarged text, images, and video by using light and optics. When presenting to a large audience, this is the perfect output device. Certain projectors come with built-in Wi-Fi and Bluetooth capabilities. 


Several input sources are included with digital projectors, including VGA connectors for supporting older devices and HDMI ports for newer equipment. They can be positioned on a pedestal, fastened to the ceiling, and more.

Uses of Projectors in Computer

1. Playing video games 

Playing on a projector allows you to adjust the screen size to your preference, which enhances your gaming experience. Playing split-screen video games with pals on a projector is an improvement over playing on a TV. Since the projected image is larger than any TV, there is more room for each player.


2. Education 

Those of us who attended college are aware of the extent to which instructors use projectors in every lesson. It would be impossible to discuss projector applications without bringing up their usage in classrooms and business presentations. Home theater projectors and educational projectors are not the same thing.


3. Theaters that are for-profit 

Generally speaking, the first time we used a projector was when we went to the movies. Classrooms were yet another completely different setting where we were first introduced to the capabilities of projectors. Some of you may have been persuaded to purchase a projector so that you can use it at home by any of these two scenarios. That is undoubtedly what transpired with me.


4.  Bedtime storytelling 

You can use the project to show your kids cartoons or introduce them to zoo animals after you've finished viewing a movie in your living room. Using graphics and films projected on walls or the ceiling, a projector can be used to bring children's stories to life or to collaborate on new stories.


5. Creating a Painting 

A projector can help you realize your dream of having a painting on a large wall in your home without requiring you to learn how to paint. Tracing along lines will allow you to swiftly draw the painting by projecting the required image onto a wall. Parents can also use this do-it-yourself activity as a great way to spend quality time with their children. It's a fantastic approach to support children's creativity and self-expression. All you have to do is project the picture that the children wish to paint onto the wall.


6. Visual Arts Projections 

For both art lovers and artists, a projector is a useful tool. Your favorite work of art can be easily exhibited in any room of your home with the help of a projector. Impressing close friends with your artistic taste can be done in a novel and enjoyable way by using a projector.


7. Projecting the menu in a lounge bar or restaurant 

Use it to project images onto objects, show off some amusing content, or provide a distinctive dining experience to go along with a delectable cuisine. Aside from that, using a projector to show off the day's specials or in-season items on the wall can be a terrific method to save time and avoid printing the menu every time.

Types of Projector

  • LCD ( Liquid Crystal Display )
  • LCOS ( Liquid Crystal On Silence )
  • LED ( Light Emitting Diodes )
  • DLP (Digital Light Processing )
  • Laser projector


1. LCD Projector

LCD Projectors, also popularly known as the modern replacements of Slide or Overhead Projectors, is one of the types of video projectors that display video and images on a projector screen or any other flat surface. They normally produce less contrast outputs and require filter maintenance. 

It consists of a lamp, three liquid crystal panels, filters, and a prism, which are required to create the image on the screen. They have great production of color and are highly affordable. They are commonly for professional purposes like presentations, seminars, and meetings.

2. LCOS Projector

The term "microdisplay" refers to a liquid crystal layer placed on top of a silicon backplane in a liquid crystal on a silicon display, which is a miniature reflective active-matrix liquid-crystal display. An alternative name for it is a spatial light modulator.

3. LED Projector

Connecting LED projectors to various devices such as laptops and mobile phones is a simple process. They have LED light projections installed, which ensure that the projected image or video is sharp and has a good resolution. 

These are top-notch projectors that project images and other content using LED technology. They have longer-lasting LED lamps and can be controlled using a remote. They are movable and can be mounted on the ceiling. Even better, a reduced noise fan on some Advanced versions can cut noise levels in half.

4. DLP  

DLP Projector actually means Digital Light Processing Projectors, where the light beams are passed through color wheels, Reflection mirrors, and finally a lens. The DLP chip, which was commonly known as a digital micromirror device (DMD), is the device that differentiates DLP from Laser Projectors. They are known to be highly reliable, lightweight, and portable.

5. Laser projectors

Because they operate at a low temperature, laser projectors provide a higher contrast than lamp projectors and don't require an internal projector unit. The laser projectors' lifespan is determined by their lamp life. They project colors that are true to life and require little upkeep. 

A laser projector modifies the laser beams on the screen to produce images and videos. They work quite well in educational settings. Newer models even come with simple image configurations and voice assistants.

Advantages of Projectors

  • The greatest substitute for a large-screen television is a projector. 
  • It has a big picture size. 
  • A projector is comfortable for the eyes.
  • It saves room.
  • The projectors are inexpensive.


Disadvantages or projectors

  • Using a projector usually requires being in a dark room. 
  • It needs upkeep or frequent adjustments. 
  • The majority of projectors require an independent audio system. 
  • Light has a tendency to be harsh.

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