Optical; Display Colour; Optional Filter; Table 11. Optical Characteristics - Planar EL640.400-C2 User Manual

Optical

For ordering information of el640-400-c3 and other EL Displays, please visit http://www.eldisplays.com/el640-400-c3/ or call +1-888-394-4998.
Determined at 70 Hz frame rate at room temperature.

Display Colour

Wide band amber (Zn:Mn)

Table 11. Optical Characteristics.

Areal Luminance
On Luminance (typ)
On Luminance (min.)
Measured at the center and the four corners of the screen.
Luminance Non-uniformity
Luminance Variation (Time)
Maximum
Luminance Variation (Temperature)
Typical
Maximum
Viewing Angle
Illuminance
10 ... 100 lx
100 ... 1000 lx
1000 ... 10000 lx
10000 ... 100000 lx

Optional Filter

The luminance contrast of the ICE version of the display EL640.400–CD3 is
sufficient for operation without any contrast enhancement. An anti-reflective
coating or protecting sheet with anti-reflective treatment is recommended.
For best overall performance of EL640.400–C2 and –C3 , a neutral gray circular
polarizing filter with anti-reflective coating or etch is the usual choice. This
filter will make the reflective electrodes of the display darker and will improve
the contrast ratio. The anti-reflective coating on the filter should face the user.
EL640.400-C2, -C3 and –CD3 Operations Manual (020-0355-00A)
2
C2 / C3 53 cd/m (16 fL)
2
CD3 21 cd/m (6.4 fL)
2
C2 / C3 45 cd/m (13 fL)
2
CD3 17 cd/m (5.0 fL)
35% = (1– min. luminance/max luminance) x
100. Maximum difference between any
two of five points (center and four
corners).
20% 10,000 h
10% over 0...+55°C range.
15%
>160°
Classification
dim
office
bright
sunlight
17