近两年来,以投影机为主体的视频市场发展很快,被广泛应用在教育、业务以及商业服务领域,其中,面向家庭影院的投影机产品更是层出不穷,各投影机厂商纷纷开始重视家用市场。投影机的产品线也开始进行市场细分,以往仅仅是以价格来划分市场为主,价格低的就划归家用市场,价格 In the past two years, the video-based projector market has been developing rapidly and has been widely used in education, business and commercial services. Projectors for home theater are more and more emerging, and various projector manufacturers have begun to attach importance to the domestic market . Projector product line also began to market segmentation, in the past is based solely on the price to market-based, low price is placed on the home market, the price