NL6448BC33-64E NEC Electronics, NL6448BC33-64E Datasheet - Page 24

• Manufacturer Part Number: NL6448BC33-64E
• Manufacturer: NEC Electronics

Specifications of NL6448BC33-64E

• Lead Free Status / Rohs Status: Compliant

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 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.).
The contrast ratio is calculated by using the following formula.
The luminance uniformity is calculated by using following formula.
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.
Luminance
Left
Luminance uniformity (LU) =
Contrast ratio (CR) =
Lower
Normal axis (Perpendicular)
Black
White
θD
80
240
400
θL
100%
10%
90%
0%
θU
106
①
④
DATA SHEET DOD-PP-0163 (1st edition)
θR
Upper
12 o’clock
Luminance of black screen
Luminance of white screen
320
Right
③
Ton
Maximum luminance from ① to ⑤
Minimum luminance from ① to ⑤
533
②
⑤
Toff
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