NL6448BC33-59 NEC Electronics, NL6448BC33-59 Datasheet - Page 23

• Manufacturer Part Number: NL6448BC33-59
• Manufacturer: NEC Electronics

Specifications of NL6448BC33-59

• Lead Free Status / Rohs Status: Supplier Unconfirmed

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
Left
Lower
Black
White
400
240
80
PRELIMINARY DATA SHEET DOD-PD-0090 (1st edition)
Normal axis (Perpendicular)
D
100%
L
90%
10%
0%
106
U
Luminance of white screen
Luminance of black screen
Upper
320
R
Maximum luminance from
Minimum luminance from
12 o’clock
Ton
Right
533
to
to
Toff
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