NL3224BC35-20 NEC, NL3224BC35-20 Datasheet - Page 31

• Manufacturer Part Number: NL3224BC35-20
• Description: DISPLAY, LCD GRAPHIC, 320 X 240 DOTS
• Manufacturer: NEC

Specifications of NL3224BC35-20

• Viewing Area (h X W): 83.52mm X 111.36mm
• Supply Voltage: 5V
• Display Mode: Active
• Rohs Compliant: Yes
• Lcd Display Type: TFT
• Interface Type: CMOS
• Lead Free Status / RoHS Status: Lead free / RoHS 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 luminance is measured at near the 5 points shown below.
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
Luminance
Contrast ratio (CR) =
Luminance uniformity (LU) =
White
Black
Left
Lower
100%
10%
90%
Normal axis (Perpendicular)
0%
40
200
120
θD
θL
DATA SHEET DOD-PP-0297 (15th edition)
53
①
④
θU
Luminance of white screen
Luminance of black screen
Ton
θR
Upper
160
③
12 o’clock
Maximum luminance from ① to ⑤
Minimum luminance from ① to ⑤
Right
266
②
⑤
Toff
NL3224BC35-20
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