1. Technical Specifications a). Dimensions
b). Optical efficiency: Unit power consumption (per watt) to the output of the luminous flux (lumens)
The index is an indicator of micro-projection is very important, as an ordinary projector, because supply is very important for the general brightness indicators, micro-projectors, both due to the brightness, battery life, heat and so on system problems, and therefore not simple brightness and the luminous efficiency will be as key indicators.
c). Resolution: The resolution of chips, such as VGA (640 * 480), QVGA (320 * 240) and so on.
d). color purity: color performance indicators, often internationally to measure the scope of NTSC color gamut
e). Contrast: easy to measure the image resolution indicator (a simple definition of state of dark state light display ratio)
2. DLP technology
As a Pocket Projector (mini-projector) of the main promoters, TI handheld projector in (pico-projector), also under the foot of the intensity, since 2008, the latest DLP also introduced its latest generation of the DMD chip.
Currently, in the world, only Texas Instruments (TI) DMD chip can provide the commercialization of products, mainly through the principle of the micro-mirror control to light to switch to achieve the right color scale and gray scale of that in the small DMD chip, with nearly 1 million than a human hair fine type of small mirrors.
3. LCoS Technology
DLP technology from TI with a company than monopoly, LCoS chip business, relatively speaking, more and more, such as Himax, Displaytech (Micron), Syndiant so. In addition, DLP LCoS technology platform open than many, relatively speaking, a greater development potential. LCoS technology as its main imaging principle similar to liquid crystal LCD, is controlled by micro-circuit voltage to liquid crystal torsion, polarized light through the LCD on the control, hitting the light to switch to achieve the color scale and gray scale. LCoS (Liquid Crystal on Silicon) and the LCD itself is different in that its reflectivity for light control, and LCD is the transmission of light control, so in theory LCoS technology itself from the opening rate would more than LCD.
As the LCoS technology, began to develop from 2008 to the present, there are the original color filter type (Color Filter) development for the current color sequence type (Color Sequential), its color performance and light use efficiency have been significantly improved current Sequential Color LCoS has become a mainstream technology.
Speaking LCoS technology and had to refer to the 3M Company, as the world's first release 3M, the optical engine is also a Fortune 500 company, its corporate culture is known for innovation in display technology field, from the projector Faming to the 2008 launch of the world's first optical engine, 3M Company has also become a big banner LCoS technology. In addition, 3M, liquid crystal polarization control in long-term technological leadership, which itself control the development of a polarization film, the film made use of PBS (Polarizing Beam Splitter) Polarization-controlled optical components, can make the same performance The LCoS light engine more than 30% volume reduction, process complexity greatly reduced, in addition, compared with the general LCoS light engine, can also contrast sharply.
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