Iso Product Quality; Pixel Errors; Class Of Usability; Class Of Reflections - TAMUZ LSM 124W Operation Manual

SPARROWHAWK series Models

ISO Product Quality

For the production of TAMUZ SPARROWHAWK series video monitors LCD panels are used which
complies with the standard ISO 13406-2, error-class 1 or 2, only. This ISO standard 13406-2 defines
the scales for ergonomic and picture quality.
The LCD panel manufactures itself (like AU, CMO, LG-Philips, NEC, Samsung, Sharp or Toshiba) don't
guarantees absolute any errorlessness and don't guarantees that the LCD panels are free of sticking
effects.

Pixel Errors

Following limited values which may not exceed are valid.
ISO 13406-2 Typ 1
Class I 0
Class II 2
Class III 5
Class IV 50
Error-type #1 describes errors by a complete bright (white) pixel, error-type #2 describes errors by a
complete dark (black) pixel, error-type #3 describes errors by defective sub-pixels of the colors red,
green and blue, which are completely bright or dark.
A single LCD pixel is built by a set of three sub-pixels, one of red, green and blue.
Error class I contains highly selected panels with no pixel error anyway. Panels within this class are ra-
re and very high priced. Panels from the error class II are the most common selection for high quality
industry applications. The error class III defines the mass production selection for IT applications. TFT
panels related to the error class IV are not useful for a LCD monitor at all.

Class of Usability

Next the standard ISO 13406-2 defines the classification of usability of LCD screens.
Usability Classification
Class 1
Class 2
Class 3
Class 4
All of the TAMUZ SPARROWHAWK series monitors comply with class 1.

Class of Reflections

The reflection characteristics of an LCD Screen are of particular importance in very bright ambient
conditions or in an environment with multiple light sources. The ISO standard provides for three quali-
ty classes.
© 02.07 TAMUZ - LCD Video Monitors
Typ 2 Typ 3
0 0
2 5 1 defect pixel within a circle of 5 mm
15 50 2 defect pixels within a circle of 5 mm
150 500
This permits several users to view the entire display area at the same time. This applies for intended
viewing distance (between 40 to 60 cm, depending on the size and resolution of the monitor) and for
a viewing angle within an 80° cone in front of the screen without any restriction of visual efficiency, in
such a way that brightness, contrast and color is maintained
Permits a single user to view the entire area of the display. This applies for intended viewing distance
(between 40 to 60 cm, depending on the size and resolution of the monitor) from every position in
front of the screen, in such a way that brightness, contrast and color is maintained.
Permits a single user to view the entire area of the display. This applies for intended viewing distance
(between 40 to 60 cm, depending on the size and resolution of the monitor) from one fixed position
in front of the screen, in such a way that brightness, contrast and color is maintained.
Permits a single user to view the center area of the display. This applies for intended viewing
distance (between 40 to 60 cm, depending on the size and resolution of the monitor) from one fixed
position in front of the screen, in such a way that brightness, contrast and color is maintained.
max. Distance
Description
LSM Digital Broadcast Monitor
SPARROWHAWK
connected Defects
maximum 2 defective sub-pixel beside
each other
maximum 2 defective sub-pixel beside
each other
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