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Pico-Projector Platform

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This platform aims at developing miniature projection modules, 3D system and interactive projection system by integrating compact solid state light mudule (LED/Laser) technologies, micro-display (LCoS/DLP) or scanning mirror, optical projection engine, projection image processing and novel detection/ recognition technologies for the next generation "mobile" display as well as interactive mobile I/O devices applications. By 2010, MPT has filed five US patents for this technology and received two major awards including Product Innovation Award, National Solid State Lighting (SSL) Innovation Contest in 2008, Product Innovation Award, Nanhai Cup National Solid State Lighting (SSL) Innovation Contest in 2010.


Pico-Projector Optical Engine

Pico-projector offers mobility with smalkl form factor and capability to display large images. A tiny projector built into cellphones, digital cameras or PDAs can provide users with clear and full colour images for personal use or multi-user sharing, while standalone pocket-sized projectors can be used for small group meetings.

In 2009, MPT developed the world's smallest embedded and standalone pico-projector optical engine at <4cc and <10cc repectively.

Technologies for Transfer

By 2010, the following specifications have been achieved:
  • Embedded projection module design
    • Size: 4 cc, resolution: WVGA, light source: RGB LED, brightness: 6-8 Im/watt
    • Can be customized according to request
  • Low-power standalone projection module
    • Size: 6 cc, resolution: WVGA, light source: white LED
    • Size: 9 cc, resolution: WVGA/WSVGA, light source: RGB LED
    • Size: 17 cc, resolution: WVGA/WSVGA/SVGA, light source: RGB LED
    • Power consumption: 2-3 watt
    • Brightness: 10-20 Im
  • High brightness standalone projection module
    • Size: 17 cc, resolution: WVGA/WSVGA/SVGA, light source: RGB LED
    • Size: 50 cc, resolution: WSVGA/XGA, light source: RGB LEDPower consumption: 10 watt/30 watt
    • Brightness: 40-100 Im
  • Projection image and screen compensation algorithm
  • Customized design of embedded projection, standalone projector, mini-pocket projector

3D Pico-Projector

Watching stereo cinemas needs not be in theatres anymore. MPT’s dual-mode 3D pico-projector adopts polarization technology based on LCoS micro-display panel, allowing switching between 2D and 3D images as well as active/passive polarization. The integrated design features an ultra-compact-sized pico-projector which can project 3D images with high brightness, high contrast and high resolution at anytime and anywhere. MPT demostrated the world’s fi rst 3D dualmode pico-projector with industry partners during CES in 2010.

Technologies for Transfer

By 2010, the following specifications have been achieved:
  • Dual-panel 3D pico-projection module
    • Size: 40 cc, resolution: WSVGA, brightness: >120 lm
    • Size: <80 cc, resolution: 720P/XGA, brightness: >200 lm
  • 3D pico-projection driving methodology
    • 2D/3D conversion driving method
    • Dual-mode 3D driving method

Interactive Projection System

An interactive projection system integrates novel projector engine with single or multiple projection screens, image sensors and light sources. It also combines unique ambient adaptive detection and recognition algorithm to adapt to the human eye physiology. Interactive projection has become one of the mainstream technologies of the next generation interactive mobile input/output devices (e.g. keyboard, writing pad, touch panel, camera, etc.).

Technologies for Transfer
  • Interactive pico-projection module
    • Dual-image projection engine: WSVGA and WVGA
    • Built-in image sensor
  • Adaptive human-eye like detection and recognition methodology
    • Adaptive ambient background detection and recognition
    • Skin colour detection algorithm to detect hands tapping, gesture
    • Image comparison algorithm to detect motion
    • Synchronization driving scheme

Scanning Mirror for Pico-Projector

The objective is to establish a MEMS device design platform ready for mass production in MEMS foundry. Accomplishments include a Lissajous electro-static (ES) Micro-Opto-Electro-Mechanical System (MOEMS) device with package and system integration (scanning mirror). The projection system can be applied to imaging devices such as head-up display (HUD) for automobile application, helmet mounted display (HMD) and pico-projector in consumer electronics applications. This MEMS device can also be applied to barcode scanner, tracking system, laser printers, touch screen, etc.

Technologies for Transfer
  • MEMS scanning mirrors for digital image processing at WVGA resolution
  • Full colour laser, bi-axis MEMS scanning mirror pico-projector optical engine
  • Laser module and beam shaping optics
  • High resolution laser/scanning mirror driving method