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一、大屏幕投影机的分类 目前市场上的投影机从其实现技术上可分为视频投影机、数据投影机和图形投影机三种档次。 视频投影机:只能显示视频图像(PAL、N、SECAM等制式)。主要用于小型娱乐场所和电化教学室,可接驳录相机、影碟机、VCD、摄像机等电视图像信号。市场上较多的品牌为Sharp(液晶类)和Sony(CRT类)等。 数据投影机:可同步显示与计算机显示器上相同的图形图像信号。 图形投影机:可同步显示与带有高分辨率图形卡的计算机、工作站显示器相同的图形、图像信号。 数据、图形投影机的主要品牌为ECP、NEC、Sony、Barco
First, the classification of large-screen projector At present, the projector on the market from its realization can be divided into video projector, data projector and projector three grades. Video Projector: Only video images (PAL, N, SECAM, etc.) can be displayed. Mainly used for small entertainment venues and classrooms, video recorders can be connected, DVD players, VCD, video cameras and other video signals. More brands on the market are Sharp (Liquid Crystal) and Sony (CRT). Data Projector: Simultaneous display of the same graphic image signal as on a computer display. Graphic Projector: Simultaneous display of the same graphics and image signals as computers and workstation displays with high-resolution graphics cards. Data, the main projector of the project is ECP, NEC, Sony, Barco