NL128102BC23_03 NEC, NL128102BC23_03 Datasheet - Page 18

• Manufacturer Part Number: NL128102BC23_03
• Description: TFT COLOR LCD MODULE
• Manufacturer: NEC

15. OPTICAL CHARACTERISTICS
Contrast ratio
Luminance
Luminance uniformity
Chromaticity
Color gamut
Viewing angle range
(CR>10)
Response time
(Module surface
temperature =30°C)
Coordinates
Parameter
Note1: Measurement conditions
Note 2: Viewing angle is θx = ±0°, θy = ±0°., at center
Note 3: The contrast ratio is calculated by using the following formula.
Optical characteristics are measured after 20minutes from lighting the backlight with all pixels in
white, in the dark room. The typical value is measured after luminance saturation.
Contrast ratio (CR) = ——————————————————
LCD module
Symbol
Lvmax White, Note 2
Toff
Ton
θx+
θy+
CR
θx-
θy-
W
R
G
B
C
-
White ( x, y )
Red ( x, y )
Green ( x, y )
Blue ( x, y )
θR=0°, θL=0°,θU=0°, θD=0°
at center, to NTSC
CR > 10, White/Black
θy±=0°
CR > 10, White/Black
θx±=0°
Black to White
White to Black 100% → 10%
Note 2
Max. / Min.
50cm
Luminance with all pixels in “white”
Luminance with all pixels in “black”
1°
Condition
0% → 90%
Photo-detector (TOPCON BM-5A)
(Ta =25°C, VDD=12V, VDDB=12V, Note 1 )
Min.
150
180
50
60
60
35
35
-
-
-
-
-
-
-
0.31, 0.32
0.62, 0.34
0.31, 0.57
0.15, 0.09
DOD - M – 0379
Typ.
250
240
1.2
60
70
70
50
50
41
6
Max. Unit Remarks
1.3
60
12
NEC Corporation
-
-
-
-
-
-
-
-
-
-
-
cd/m
deg.
deg.
deg.
deg.
ms Note 5
ms Note 5
%
-
-
-
-
-
-
2
Note 3
-
Note 6
Note 2
Note 4
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