NL10276BC20_07Y NEC, NL10276BC20_07Y Datasheet - Page 19

• Manufacturer Part Number: NL10276BC20_07Y
• Description: Display Module
• Manufacturer: NEC

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4.10.2 Definition of contrast ratio
4.10.3 Definition of luminance uniformity
4.10.4 Definition of response times
4.10.5 Definition of viewing angles
The contrast ratio is calculated by using the following formula.
The luminance uniformity is calculated by using following formula.
the same screen point, by photo-detector. Ton is the time it takes the luminance change from 90% down
to 10%. Also Toff is the time it takes the luminance change from 10% up to 90% (See the following
diagram.).
Response time is measured, the luminance changes from "white" to "black", or "black" to "white" on
The luminance is measured at near the 5 points shown below.
Contrast ratio (CR) =
Luminance uniformity (LU) =
Luminance
Black
White
Down
640
384
126
Right
PRELIMINARY DATA SHEET DOD-M-1348 (2nd edition)
100%
90%
10%
Normal axis (Perpendicular)
0%
3 o’clock
171
R
D
Luminance of white screen
Luminance of black screen
L
512
Maximum luminance from
Minimum luminance from
Ton
Left
U
9 o’clock
853
12 o’clock
Up
to
to
Toff
NL10276BC20-07Y
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