1. LCD Projector Vs DLP Projector Masooma Malik

2. Multimedia Projectors • These receive signals from Computers, Televisions and DVD Players and project the image onto a large screen. • Multimedia Projectors are usually controlled using a Remote Control. • The remote control makes it possible to direct the presentations without the need to be at the computer. Multimedia Projector Remote control

3. Uses: • Can be used for training presentations to allow the whole audience to see images from a computer. • Can also be used for large scale advertising of new products – • Home cinema systems where images from DVD‟s or Televisions are projected to a large screen.

4. Advantages: • Enable many people to clearly view a presentation. • Enhance the viewers experience. For example – watching movies on a large screen is better than a small TV screen. Disadvantages: • Very expensive to buy. • Can be difficult to set up. Images can sometime be fuzzy.

5. LCD Projector • It start with a source of light (lamp) and split the light into three beams. Each beam passes through its own LCD panel. The LCD panels each have hundreds of thousands of tiny pixels, the higher the resolution, the more pixels. Data determines whether light is allowed to pass through each one. • One of three LCD panel has a red filter, one a green, and one a blue filter. The light is then recombined, using a dichroic prism. The combined, now in full color, passes through the lens and hits your screen.

6. Advantages Disadvantages • Richer color dynamics for better results in rooms with ample ambient light . • Draw less power. • Throw less heat. • No color filter wheel = No "rainbow effect" • Slightly quieter. • Seemingly sharper image on data. • More visible pixels. • Some screen door effect on certain video images. • Physically larger - Even for the same number of lumens. • Poorer contrast. • Blacks come out lighter gray than DLP projectors.

7. DLP Projector • DLP projectors were developed by Texas Instruments and project images by reflecting lights against hundreds of tiny mirrors called digital micro devices (DMD). A color, spinning wheel (referred to as a color wheel), combined with timing, allows the light to come out the correct colors, and pass through the lens on its way to the screen. DLP projectors are lighter in weight than their LCD counterparts. • DLP have higher contrast ratios, meaning that they project video images better than LCDs. They are portable, tend to be smaller and lighter than LCDs and connect easily to other digital devices.

8. Advantages Disadvantages • Smoother video. • Smaller box. • Pixels far less visible, (although normally not an issue for business use). • More “film like” on DVD and HDTV. • Generate "blacker" blacks. • Rainbow effect bothers some. • More moving parts (color filter wheel). • Color filter wheel often produces soft but audible whine. • Poorer reds and yellows at full power. • Color saturation. • Need more lumens than LCD, for rich colors, when dealing with ambient light.

9. Comparing LCD vs DLP Projector