NL10276BC30-10 NEC, NL10276BC30-10 Datasheet - Page 22

• Manufacturer Part Number: NL10276BC30-10
• Description: TFT COLOR LCD MODULE
• Manufacturer: NEC

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
Left
White
640
384
Lower
128
PRELIMINARY DATA SHEET DOD-M-1297 (4th edition)
100%
Normal axis (Perpendicular)
D
90%
10%
0%
171
L
Luminance of white screen
Luminance of black screen
U
512
Maximum luminance from
Minimum luminance from
Upper
Ton
R
12 o’clock
853
Right
to
to
Toff
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