A tutorial on how to connect a projector to a mobile phone for projection.

The tutorial of connecting the projector to the mobile phone for screen projection is as follows:

Tools: Huawei nova8, HARMONYOS 2.0.0, Settings.

1. First, open the phone settings and click more connections.

2. Next, click on the mobile phone projection screen on more connection pages.

3. Finally, turn on the blue switch behind the wireless projection screen to search for the connection of the projection equipment.

Projector light source type

The light sources used in projectors include traditional high-intensity gas discharge light sources and new solid light sources represented by LED light sources and laser light sources. The traditional light source has high brightness and good color, but after a period of use, the projector usually turns dark and yellow with the attenuation of the light emitted by the light source (such as brightness attenuation, color saturation contrast reduction, etc.). ), so it is necessary to maintain and replace the light bulb regularly.

With the development of semiconductor lighting technology and laser technology, LED light sources and laser light sources have developed rapidly not only in the lighting field, but also in the display field. LED is the earliest new light source widely used in affordable home projector. Because LED can make the imaging structure of the projector simpler, the projector product with small size, easy to carry and simple to use brings great convenience to teaching, business and personal entertainment.