This article discusses the modern DLP projectors, including 1-chip and 3-chip models, their operation principle, key features, Brilliant Color technology, pros and cons, etc. The article also contains a video showing a review of new BenQ HT3550 & HT5550 (BenQ Launch W2700 & W5700 for Europe) 4K DLP projectors, which use new Texas Instrument 0.47" DMD chip that eliminates the grey borders, RGBRGB colour wheel with high quality control, factory calibration to D65 white point with report supplie...