Point of Sale Displays

Point of sale displays are designed to different specifications, depending on the requirements of the client. Originally, a point of sale (POS) display was nothing more than an LED (Light-emitting Diode) display atop a cash register to display the amount to the customer. The first ones could only display a few characters on a single line. Later on, the terminals became more advanced and the display became a small, monochrome CRT (Cathode Ray Tube) monitor, which displayed the POS software interface and gave more guidance and feedback as to the tasks the operator was performing.

Modern, local area network (LAN) POS systems are fully networked and may only have a liquid crystal display (LCD) flat panel monitor linked to an input device such as a keyboard. More commonly, however, these monitors are touch screens. No longer are the prices typed in manually; instead, a laser scanner scans the barcode and the price and item description is entered automatically. Error messages are displayed on the monitor and if a barcode is not present in the system, and is not recognised, the operator may type in the code manually by way of the touch screen. However, the cost of a touch screen is appreciably higher than that of a conventional LCD.

LCD point of sale displays may be of the capacitive all-glass type for ultimate durability and quality, but these are also the most expensive type. Cheaper POS displays offer the conventional LCD screen and special resistive displays may be used in places like hospitals, where easy operation is required with fingers, pens, gloves or other means of touch.