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家用投影机从投影方式上分,有正投影式和背投影式。正投影方式的投影机和投影幕不在一起,优点是投影出的图像尺寸大,而且图像尺寸随意可调。缺点是调整复杂使用不方便,整体结构上不像一件完美的家用电器,这种方式的家用投影机没能被广大消费者接受。背投影方式的投影机和投影幕做在一起,同普通彩电一样调整简单使用方便,结构上更像一台大彩电,外观有气派和时代感。 背投与普通电视的区别在接收电视信号后的处理上。普通电视收到视频信
Home projector from the projection on the points, there are orthographic projection and rear projection. Projection is not the way the projector and projection screen together, the advantage is the projected image size, and the image size is adjustable. Disadvantage is not easy to adjust the complex to use, the overall structure is not like a perfect home appliances, home projector in this way has not been accepted by the vast number of consumers. Rear projection mode projector and projection screen together, with the same general color TV adjustments easy to use, the structure is more like a large color TV, the appearance of the style and the sense of the times. Rear projection and the difference between ordinary TV in the reception of television signal processing. Ordinary television received the video letter