Glossary: A to Z

The glossary provides definitions of the key technical terms,
technologies and products.
The content is constantly reviewed and updated by our team of experts.

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LCD - liquid crystal display
With LCD projection technology, the lamp light is passed through a dichroic mirror and split into three primary colours: red, green and blue (3LCD) . The split light is filtered through the working end of each colour polysilicon liquid crystal panel. This produces monochrome images which are superimposed through a prism which then produce an image. Particularly high-quality projectors use four panels (4LCD). In the 4LCD projectors the colour yellow is also separated.