Barco E-2320 C (SE) Manual De Usuario

Glossary

97

Each display is calibrated in the factory before it is sent to the 
customer. After this calibration, black and white luminance are set to 
the ideal level.

A stabilization routine, constantly active when the display is on, keeps 
these levels constant using the built-in sensor.

A Display Function describes how a display device converts the video 
signals at the inputs into light. 

In the context of a medical viewing station, a display device is the 
combination of display controller (graphics board) and display.

The display function is a graph that shows how the light from the 
display panel evolves from minimum to maximum luminance while 
the data levels at the input of the display controller go from 0 to 
maximum.

A display controller (graphics board) converts the digital data 
from the computer into digital or analog video voltages.

Most of the common display controllers contain just one set of 
video and sync outputs. However, some high-end boards, like 
some of the BarcoMed boards, contain two sets of video and 
sync outputs. This is called a dual head display controller. It is 
like two complete display controllers implemented on one 
single unit.

A dual head board in the computer behaves exactly as if two 
separate boards were installed.