NL3224BC35-20 NEC Electronics, NL3224BC35-20 Datasheet - Page 26

• Manufacturer Part Number: NL3224BC35-20
• Manufacturer: NEC Electronics

Specifications of NL3224BC35-20

• Lead Free Status / Rohs Status: Not 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 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
180
120
Lower
60
θD
100%
Normal axis (Perpendicular)
90%
10%
0%
80
{ { { {
θL
x x x x
DATA SHEET EN0556EJ3V0DS00
θU
Luminance of white screen
Luminance of black screen
160
z z z z
Maximum luminance from
Minimum luminance from
Upper
θR
Ton
12 o’clock
| | | |
y y y y
210
Right
x x x x to | | | |
x x x x to | | | |
Toff
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