How Color Works

• The entire spectrum is created from three base colors: red, green and blue. Most DLP-based TVs create color through a spinning wheel placed between the lamp and the DLP chip. The speed of the wheel is determined by internal processing. This ensures that the right amount of light hits the mirrors at the right time. More than 16 million colors are created with the combination of the DLP chip and colored light created by the color wheel.
  
  

Rainbows

• The main problem with the color from rear projection TVs are "rainbows." Some people see these rainbows, brief multicolored flashes of light that appear on the screen. Most people see the flashes when their eyes wander away from the screen. The number of people who actually see these flashes is minimal, and those who do are not bothered by it. Sensitivity to this problems varies so much that its difficult for anyone to tell if she has seen the flashes. According to HDTVSolutions.com, one way to test yourself is to spend time in a store watching a rear projection TV.
  
  

Innovations

• Samsung has created a system that replaces the lamp-and-color-wheel with three colored LEDs (Light Emitting Diodes), one for red, green and blue. These LEDs flash on and off at speeds even higher than a color wheel. This system is found in Samsung's high end DLP TVs and solves the rainbow effect. The LEDs actually reach full brightness faster than the tradition system and are more energy efficient.