Your Technology Travel Agent
800-736-8772 Press Releases: Your source for Technology rental news

LCD Projector Rentals - Will One Work For You?

LCD Projector Rentals

How LCD Technology Works

LCD stands for Liquid Crystal Display. LCD Projectors display images typically by using small metal halide lamps. These lamps are used because they produce a wide range of colors at ideal color temperatures. Additionally, metal halide lamps enable a projector to emit large amounts of light (on average 2,000 to 15,000 Lumens) in a small area. The light from the lamp is dispersed through a series of dichroic filters (liquid crystals) to three panels, one for each color component of a video signal (red, green, blue). An electrical current is applied to toggle the color on or off, depending on what shade of what color is being displayed. This gives the LCD projector its wide color range.

Improvements in LCD Technology

There have been several problems with LCD projectors since their inception. Most notably, motion blur, also referred to as "ghosting", has been a drawback to this type of technology. This is where an image will stay on the screen even after it has changed, causing a momentary blurred picture. Also LCD was notorious for having poor color saturation and low contrast ratios. These problems have since been minimized due to improvements in LCD technology.

Also, LCD picture can sometimes look pixelated, allowing users to see small lines in between individual pixels that create a sort of grid. This is known as the "Screen Door Effect" because it looks as if you are viewing the image through a screen door. This issue is usually noticed during full motion video. Another drawback to LCD technology is dead pixels. It appears as a square or pixel that never changes colors and can be distracting to the viewer. This usually happens due to the age and use of the projector.

Best Applications for LCD

LCD Projectors are most ideal for static images like spread sheets and documents. As long as there is little movement on the screen, the drawbacks of LCD technology go unnoticed. When projecting static images, you get sharper images with less blur because of the high levels of light produced by the projector.

LCD Projectors also work great in areas where it is difficult to control the lighting in the room, such as rooms with several large windows. Since the metal halide lamps produce bright light, they perform better in these scenarios. Typically LCD projectors have a larger viewing angle as well, which is good for large rooms with several viewers that are not centered in front of the projector.

A DLP Projector Rental may be a better option, find out: DLP Projector Rentals - Is One Right For You?