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| 型號(hào)： | DMC-50149 |
| 廠商： | Optrex America, Inc. |
| 英文描述： | LCD Module |
| 中文描述： | 液晶顯示模塊 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大小： | 170K |
| 代理商： | DMC-50149 |
DMC-50149NYU-LY-B (AB) No.98-0118
OPTREX CORPORATION
Page 7/16
OPTREX
3.Optical Specifications
3.1.LCD Driving Voltage
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Recommended
Ta= 0
℃
－
－
5.3
V
LCD Driving Voltage
V
CC
-V
EE
Ta=25
℃
4.4
4.7
5.1
V
Note 1
Ta=50
℃
4.2
－
－
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, 1/4.5 Bias, V
D
=4.7V (Note 4),
θ
= 0
,
φ
=
－
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Contrast Ratio
Note 1
CR
θ
= 0
,
φ
=
－
－
10
－
Viewing Angle
Shown in 3.3
Response
Rise
Note 2
T
ON
－
－
100
200
ms
Time
Decay
Note 3
T
OFF
－
－
200
300
ms
Note 1 : Contrast ratio is definded as follows.
CR = L
OFF
/ L
ON
L
ON
: Luminance of the ON segments
L
OFF
: 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 V
D
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 V
D
is definded
as follows.
V
D
= (Vth1+Vth2) / 2
Vth1 : The voltage V
O-P
that should provide 50% of the satulation level in the luminance at
the segment which the ON signal is applied to.
Vth2 : The voltage V
O-P
that should provide 50% of the satulation level in the luminance at
the segment which the OFF signal is applied to.
V
O-P
1 /
f
F
( B-2 )
×
V
O-P
/ B
1 / (
f
F
×
A )
〈
OFF SIGNAL
〉
〈
ON SIGNAL
〉
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