NL128102BC29_10 NEC, NL128102BC29_10 Datasheet - Page 22
NL128102BC29_10
Manufacturer Part Number
NL128102BC29_10
Description
Display Module
Manufacturer
NEC
Datasheet
1.NL128102BC29_10.pdf
(29 pages)
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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 10% up
to 90%. Also Toff is the time it takes the luminance change from 90% down to 10% (See the
following diagram.).
Response time is measured, the luminance changes from "black" to "white", or "white" to "black" on
The luminance is measured at near the 5 points shown below.
Luminance
Contrast ratio (CR) =
Luminance uniformity (LU) =
Left
Black
White
Lower
171
512
853
Normal axis (Perpendicular)
θD
100%
PRELIMINARY DATA SHEET DOD-PP-0492 (2nd edition)
90%
10%
θL
0%
213
①
④
θU
640
Luminance of white screen
Luminance of black screen
③
θR
Upper
Ton
12 o’clock
Maximum luminance from ① to ⑤
Minimum luminance from ① to ⑤
1,067
Right
②
⑤
Toff
NL128102BC29-10
22
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