Projection Systems

Projection Systems: It's Show Time

Get your popcorn, take your seats, and wait for the lights to dim. The show is about to begin. But wait. We’re not talking about the rear projection system in your home theatre. We’re going to be exploring the most technologically advanced rear projection modules in the world–Control Room Projection Systems. Here, uncompromising reliability and superior display quality are absolute necessitie


The most commonly used projection systems in 24/7 mission critical environments are DLP® and LCD-based solutions. In order to make an informed decision on the best application for your control room, you must have an understanding of each. Which one offers superior reliability? The highest display quality? The least maintenance requirements? Let’s have a look at DLP® (Digital Light Processing) and LCD (Liquid Crystal Display) technologies and compare.

Rear projection LCD systems

LCD projectors usually contain three separate LCD glass panels - red, green, and blue – through which light passes. Pixels can be opened or closed to either allow light in, or block it. By modulating the light, images are produced on the projection screen. Issues include:

  • Degradation due to the effects of temperature, vibration, heat, and humidity.
  • Problems with uniformity of color and brightness. 

Rear projection DLP® systems

DLP® projection technology consists of a reflective surface made up of thousands of tiny mirrors (micro-mirrors), each one representing a single pixel. Light from the projector's lamp is directed onto the surface of the DLP® chip. The mirrors direct light either into the lens path to turn the pixel on, or away from the lens path to turn it off. Advantages include:

  • DLP® is digital-based, and therefore more consistent, reliable and stable over time.
  • DLP panels can last up to 100,000 hours.
  • DLP® panels represent a low-maintenance alternative. They reflect heat instead of absorbing it, so they don’t experience degradation problems.
  • A sharp, clear image, excellent color and overall uniformity of  brightness provide superior image quality compared to any other rear projection modules.

LED is our zero maintenance design system

This cost saving display wall system utilizes revolutionary technology, combining DLP® performance with LED illumination. The Zero Maintenance Design is the revolution that eliminates all consumable components, such as lamps, dust filters and color wheels. This solid state design means there are no lamps to burn out. There is no spinning color wheel within the projection engine that may fail and require replacing. And no dust filter that needs to be cleaned. With no consumable components there is substantially less disruption to the content of the wall.

The Christie advantage

Christie offers a wide selection of purpose-built rear projection display products, utilizing the latest proven technologies, and designed specifically for 24/7 control room applications. Products can support a wide range of resolutions, with features that include ultra-high contrast ratios, brightness uniformity control, color matching, built-in edge-blending for seamless tiling and a built-in GPIO port for automated control between the projection engine and hardware devices.

Rear projection products feature the latest XGA, SXGA+, HD and WUXGA DLP® display technology ensuring crystal clear images with minimum maintenance and maximum reliability

Download our Video Wall Brightness Requirements Technical Guide to learn what you need to know about basic control room projection requirements. Contact us for more information today on the Christie advantage.