64CH Common Driver For Dot Matrix LCD 5
Electro-Optical characteristics
TN Type (Twisted Nematic )
ITEM
SYMBOL
θ2 -θ1
φ
MIN.
40
TYP.
-
MAX.
-
UNIT
deg.
CONDITION
Cr = 2.0
NOTE
1,2
Viewing Angle
θ=20ο
φ= 0ο
θ=20ο
φ= 0ο
θ=20ο
φ= 0ο
Contrast Ratio
Cr
tR
-
-
-
4
-
-
-
-
3
4
4
Response Time (rise)
Response Time (fall)
110
110
ms
ms
tF
STN Type (Super Twisted Nematic )
ITEM
SYMBOL
θ2 -θ1
φ
MIN.
70
-90
TYP.
-
MAX.
+90
UNIT
deg.
CONDITION
Cr = 2.0
NOTE
1,2
Viewing Angle
θ=20ο
φ= 0ο
θ=20ο
φ= 0ο
θ=20ο
φ= 0ο
Contrast Ratio
Cr
tR
-
-
-
4
-
-
-
-
3
4
4
Response Time (rise)
Response Time (fall)
110
110
ms
ms
tF
1. Definition of angle θ& φ
2. Definition of viewing angle θ1 & φ2
Y(φ=180 ο)
20 ο
θ 2
ο
φ
Y’( =0 )
3. Definition of contrast Cr
4. Definition of optical response
100%
On
Off
Off
Selected
Dots
Intensity
90%
Non-
Intensity
100%
selected
Dots
10%
A
0%
100%
Time
Set Point
Driving Voltage
tR
tF
Cr = ( A / B ) p
Negative : P = -1
Positive : P = +1
HB [ HB ELECTRONIC COMPONENTS ]
