A projector, also known as a projector, is a device that can project images or videos onto a screen. You can connect with computer, VCD, DVD, BD, game machine and DV through different interfaces to play corresponding video signals. Projectors are widely used in homes, offices, schools and entertainment places. According to different working methods, there are different types such as CRT, LCD and DLP. Application environment

1, home theater type: it is characterized by a brightness of about 2000 lumens (this number is increasing with the development of projection, and the contrast is high), and the aspect ratio of the projected picture is mostly 16: 9, and various video ports are complete, which is suitable for playing movies and HDTV, and suitable for home users.

2. Portable business projector: Generally, a projector weighing less than 2kg is defined as a business portable projector, which is comparable to a thin notebook computer. Business portable projector has the advantages of small size, light weight and strong mobility, and is a substitute for traditional slide projectors and large and medium-sized projectors. The combination of thin notebook computer and business portable projector is the first choice for mobile business users to demonstrate mobile business.

3. Educational conference projector: generally used in schools and enterprises, with mainstream resolution and brightness of about 2000-3000 lumens, moderate weight, good heat dissipation and dust prevention, suitable for installation and short-distance movement, rich functional interfaces, easy maintenance, relatively high cost performance, and suitable for public purchase and promotion.