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DMC50448 数据表(PDF) 5 Page - OPTEK Technologies

部件名 DMC50448
功能描述  LCD Module Specification
Download  15 Pages
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制造商  OPTEK [OPTEK Technologies]
网页  http://www.optekinc.com
标志 OPTEK - OPTEK Technologies

DMC50448 数据表(HTML) 5 Page - OPTEK Technologies

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DMC-50448N
(AA)
No.99-0094
OPTREX CORPORATION
Page 5/15
OPTREX
3.Optical Specif ications
3.1.LCD Driving Voltage
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Recommended
Ta= 0℃
4.8
V
LCD Driving Voltage
VDD-V0
Ta=25℃
3.9
4.2
4.5
V
Note 1
Ta=50℃
3.6
V
Note 1 :
Voltage (Applied actual waveform to LCD Module) for the best contrast. The range of
minimum and maximum shows tolerance of the operating voltage. The specified contrast ratio and
response time are not guaranteed over the entire range.
3.2.Optical Characteristics
Ta=25℃, 1/16 Duty, 1/4 Bias, VD=4.2V (Note 4), θ= 0 ゚, φ=-゚
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Contrast Ratio
Note 1
CR
θ= 0 ゚, φ=-゚
7
Viewing Angle
Shown in 3.3
Response
Rise
Note 2
TON
130
200
ms
Time
Decay Note 3
TOFF
130
200
ms
Note 1 : Contrast ratio is definded as follows.
CR = LOFF / LON
LON : Luminance of the ON segments
LOFF : Luminance of the OFF segments
Note 2 : The time that the luminance level reaches 90% of the saturation level from 0% when ON
signal is applied.
Note 3 : The time that the luminance level reaches 10% of the saturation level from 100% when OFF
signal is applied.
Note 4 : Definition of Driving Voltage VD
Assuming that the typical driving waveforms shown below are applied to the LCD Panel at
1/A Duty - 1/B Bias ( A : Duty Number, B : Bias Number ). Driving voltage VD is definded
as follows.
VD = (Vth1+Vth2) / 2
Vth1 : The voltage VO-P that should provide 50% of the saturation level in the luminance at
the segment which the ON signal is applied to.
Vth2 : The voltage VO-P that should provide 50% of the saturation level in the luminance at
the segment which the OFF signal is applied to.
VO-P
1 /
fF
( B-2 )×VO-P / B
1 / (
fF×A )
〈OFF SIGNAL〉
〈ON SIGNAL〉


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