Matrices are responsible for displaying the image on the monitor screen. The quality of the matrix translates into image quality and comfort of use. We can distinguish three types of matrices: IPS, TN and VA. There are several types of screens that differ in technology. Screens and displays can be divided into plasma and LCD. Plasma displays are characterized by a short response time, good viewing angle and black representation. We categorize LCD screens depending on the screen backlight used. We distinguish between LED and CCFL. These displays are characterized by high image quality and attractive price. We also offer Plasm displays.