Eizo SCD 19102 - Foreword (a Number of Useful Points to Facilitate Understanding of Timing and the Various Types of Timing)

Commissioning
7.4 System settings
SCD 19102 / SMD 19102
66 Instruction Manual, 10/2011, A5E01588521A-004
7.4.6.2 Foreword (a number of useful points to facilitate understanding of timing and the
various types of timing)
Scanning in the interlaced and non-interlaced procedures
There are two different scanning systems. They differ in the technology used to display the
image on the screen TV signals and displays which are compatible with them are normally
set to the interlaced procedure, computer signals and displays compatible with them are
normally set to the non-interlaced procedure. These two formats are not compatible; one of
them must first be converted before the signals can be processed together. In the case of
interlaced scanning, each image is divided into two separate fields. An image therefore
comprises two fields. An interlaced image is output on the screen in two scans. The
horizontal lines of the first field are scanned first, and then, again starting at the top of the
image, the horizontal lines of the second field are scanned between the first set of lines.
Field 1 consists of the lines 1 to 262 1/2, and field 2 of the lines 262 1/2 to 525. Only a few
lines are displayed at the top and bottom of each field.
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Figure 7-4 Interlaced scanning system