Projectors are used in the classroom more and more today with technology becoming an essential part of the education system. LCD projectors are used in school auditoriums and classrooms for educational and entertainment purposes.

Definition

An LCD, or liquid crystal display, is a projector that projects an image onto a flat screen. Light is sent through a special lamp that then separates the light into red, green and blue components for a video signal. This signal is then recombined and projected through the lens and onto a screen.

Function

LCD projectors are beneficial in the classroom for many reasons. One example is for crowded classrooms during a special demonstration in areas such as science, art or technology. Teachers are able to use LCD projectors in their classrooms to enlarge dissections and experiments in crowded classrooms.

Other Benefits

Teachers are also able to use LCD projectors within the classroom to display educational PowerPoint presentations, videos and also information directly from the Internet by using LCD projectors. This makes LCD projectors useful in day-to-day activities and lessons within the classroom.

School-wide Activities

LCD projectors can be used within the school auditorium during entertainment activities school and community wide. Movies can be displayed in an auditorium to benefit the entire school. Celebrations, such as graduations, can be broadcast in larger size using and LCD projector and screen.

Considerations

LCD projectors can be expensive, costing around $1,000. They can also be costly to maintain with additional parts, such as wall mounts, which can cost an additional $300. Replacement lamps can also cost around $300. This can put a strain on school budgets and a complete stop to classroom activities and lessons if waiting for a replacement part to arrive.

Source:

How LCD Projectors Work

ProjectorCentral.com

Pilot Programs Helps New Trier Reengineer Classrooms