ACM2002EI Datasheet, PDF (5/23 Pages) AZ Displays – LIQUID CRYSTAL DISPLAY

ACM2002EI-FL-YBW VER1
3.0.2 The Characteristics Of LED Backlight(yellow-green)
3.0.2.1 Electrical-Optical Characteristics Of LED Backlight (Ta=25ºC)
Item
Sy
mbol
Condition
Min
Typ
Max
Unit
Forward Current
If
VF=4.1 0.2V
--
140
--
mA
Reverse Voltage
Vr
--
--
10
V
Luminance
Lv
If=140mA
175
190
--
cd/
Uniformity
(Lvmin/Lvmax )%
75%
90%
--
Spectral line half width
If=1 40mA
--
30
--
nm
Lifetime
If=140mA
18000
20000
---
Hours
NOTE:
(1)The luminance is the average value of 5 points,The measurement instrument is BM-7 luminance
colorimeter.The diameter of aperture is 5mm
(2) Luminance means the backlight brightness without glass.
(3) Backlight lifetime means luminance value larger than half the original after 20000 hours’ continuous
work.
3.0.2.2 Backlight Circuit
LED 2X14=28 Dies
4.0 OPTICAL CHARACTERISTICS (Ta=25ºC, Vdd= 5.0V±0.25V)
Item
Sy
Viewing angle (horizontal)
Viewing angle (vertical)
Contrast Ratio
Response time (rise)
Response time (fall)
mbol
Condition
Min
Typ
Max
Unit
Cr
2.0
-35
-
35
deg
Cr
2.0
-25
-
40
deg
Cr
=0 , =0
-
6
-
Tr
=0 , =0
-
18 0
300
ms
Tf
=0 , =0
-
15 0
250
ms
AZ DISPLAYS, INC.
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