Monday, July 02, 2007

The iPhone's curious LCD link

In this weekend's scramble to find out who had chips inside the iPhone, National Semiconductor was one of the winners. Portelligent reports National's Mobile Pixel Link (MPL) interface chips were used for the iPhone display.

If true, it would be one of several examples of the iPhone using decent but not necessarily leading-edge component technology. More than a year ago the ad hoc Mobile Industry Processor Interface Alliance that defines cellphone interface standards said it was rolling out its Display Serial Interface to support screens with up to XGA resolutions of 1.024x768 pixels.

Even a spokesman for National said at the time it saw the MIPI work as the long-term future, though it planned at the time to roll out 16- and 18-bit versions of the interface. A Web site national set up to rally support for MPL looks pretty much moribund.

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