试想，你的手机可以将手机中的图片或者PPT投影于墙上，是不是很酷？呵呵，这就是Pico-projector，即所谓的皮投影仪。早就听闻Ti的DLP(Dynamic Light Projection)技术--已经在Barcelona有展，确实是一个很诱人的东西。但是目前成本太高，所以还不是很成熟可以推出。我想，也许三年之后（保守？），大家的手机就都是一个很炫的Pico-projector了。

其实说到“光电”，化合物半导体可是可有所为的东西。LED，光互连，激光--甚至激光驱动器，都有化合物半导体的影子。这是一个巨大的市场，同样在科研至上也是非常有前途，可惜呀--难言。

Luminus Devices' experience comes from its development of “Phlatlight” photonic crystal LEDs for the dynamic light projection (DLP) technology that Texas Instruments has developed. This technology has been proven in rear-projection TVs made by Samsung, for example (see related stories), and is being pushed for use in pico-projectors.

“The problem with the DLP is the cost,” explained Brennesholtz. “TI has been working on lower-cost DLP devices and they even showed one [at the Mobile World Congress] in Barcelona, but how low is low-priced? Nobody’s quite sure.”