Advertisement
4.10.2 Definition of contrast ratio
The contrast ratio is calculated by using the following formula.
4.10.3 Definition of luminance uniformity
The luminance uniformity is calculated by using following formula.
The luminance is measured at near the 5 points shown below.
4.10.4 Definition of response times
Response time is measured at the time when the luminance changes from "black" to "white ", or
"white" to "black " on the same screen point, by photo-detector. Ton is the time when the luminance
changes from 10% up to 90%. Also Toff is the time when the luminance changes from 90% down to
10% (See the following diagram.).
4.10.5 Definition of viewing angles
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Arrow.com.
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Contrast ratio (CR) =
Luminance uniformity (LU) =
213
①
133
400
④
667
100%
90%
White
Luminance
Black
10%
0%
Normal axis (Perpendicular)
θL
θU
Left
θD
Lower
PRELIMINARY DATA SHEET DOD-PP-0936 (1st edition)
Luminance of white screen
Luminance of black screen
Maximum luminance from ① to ⑤
Minimum luminance from ① to ⑤
640
1067
②
③
⑤
Ton
12 o'clock
Upper
θR
Right
NL12880BC20-05
Toff
26
Advertisement
