White LEDs: The backlight of choice for small liquid-crystal displays

Steele, Robert
October 2006
Portable Design;Oct2006, Vol. 12 Issue 10, p11
The article provides information on the functions of white light-emitting diodes (LED) which have become the favored choice for backlighting the small liquid crystal displays (LCD). These LED's were widely distributed when full-color displays started to be seen in mobile phones. The LED which released white light were produced using a blue LED chip combined with a phosphor. The blue emission stimulates the phosphor to release in the yellow region of the spectrum. The success of LED's as backlights for mobile phone displays has resulted to the adoption of other portable electronic products like digital still cameras, video cameras and MP3 players.


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