Handheld devices with notebook quality graphics and video are on their way, according to Microvision. It has demonstrated an 800 x 600 pixel full-color display that has just four active components and can be integrated into a personal digital assistant (PDA) or a cellphone.
The device works by having three light-emitting diodes shining red, green and blue onto a micro-electrical-mechanical-systems (MEMS) chip with a vibrating mirror. As the mirror vibrates, it scans out a full picture, which is projected through a lens to the viewer. The display is designed to be held up to the eye, either as a screen in a handheld device or as part of a wearable headset. Potentially, it can be made not much larger than existing silicon chips.
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