Huangguang Xian
Technical Marketing Director Asia Pacific
Fairchild
Fairchild, Director of Technical Marketing Asia Pacific Huangguang Xian believes that touch controls will also promote the LED backlight applications. Apple iPhone first of its kind capacitive touch control, many mobile phone manufacturers followed suit, but also have a touch screen or a capacitive touch keypad. Bi-functional control key is a beneficiary of this interface technology, digital keypad can be transformed to an MP3 player or web browser control keys. But Huangguang Xian explained that it brings a new challenge, each one controlling both requires separate backlighting, while the use of a single string of white LED illuminated keypad can not fully meet the demand.
In addition, different applications may require different light colors. The end result is likely to be controlled independently of the 12 tri-color LED backlight. Semiconductor companies, the challenge is to provide the ability to accomplish this task and still maintain a smaller package size drives, Fairchild is being developed to meet the requirements of this emerging market LED driver.
Donato Montanar
Vice President
Leadis
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