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Self-Test Mode
The display incorporates a self-test mode composed of a 1 x 2 checkerboard
and full-on pattern displayed at 240 Hz. Upon power up, the 1 x 2 pattern is
displayed for several seconds, then the full-on pattern is displayed
continuously. The self-test mode is entered by leaving the SELFTEST pin pulled
high. For normal operation the SELFTEST pin must be pulled to a logic low. If
the SELFTEST pin is pulled high during normal operation, the display will enter
the self-test mode.
Optical
Table 8. Optical Characteristics.
Luminance
L on (areal), min
L on (areal), typ
L off (areal), max
Non-uniformity
All pixels fully lit
Luminance Variation (Temperature)
Maximum
Luminance Variation (Time)
Maximum
Viewing Angle
Minimum
Contrast Ratio
240 Hz frame rate
63.5 cd/m²
screen center, 240 Hz frame rate
80.6 cd/m²
screen center, 240 Hz frame rate
.20 cd/m²
5 points @ 240 Hz
26%
Maximum difference two of five points,
using the formula:
LNU%=[1- (min_lum/max_lum)] x 100%
Across operating temperature range
25%
<20%
10,000 hours at 25 C ambient
160
40.5
@ 500 Lux
5.5
@ 5,000 Lux
1.5
@50,000 Lux
EL640.200-SK Operations Manual (020-0348-00B)
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