ACM2004D SERIES LCD MODULE
4.1 OPTICAL CHARACTERISTICS (Ta=25ºC, Vdd= 5.0V±0.25V, STN LC fluid)
Item
Viewing angle (horizontal)
Viewing angle (vertical)
Contrast Ratio
Response time (rise)
Response time (fall)
Symbol
θ
φ
Cr
Tr
Tf
Condition
Cr
≥
2.0
Cr
≥
2.0
φ=0°, θ=0°
φ=0°, θ=0°
φ=0°, θ=0°
Min
-60
-40
-
-
-
Typ
-
-
6
150
150
Max
35
40
-
250
250
ms
ms
Unit
deg
deg
5.0 BLOCK DIAGRAM
1. Vss
2. Vdd
3. Vo
4. RS
5. R/W
6. E
7. DB0
8
14. DB7
U2
SEG1- 40
SEG41- 120
40
SEG 1
COM 1
COM 16
16
COM16
80
U3
SEG121-200
80
SEG200
U1
~
LCD 20X4
+ BL+
- BL-
LED BACKLIGHT
AZ DISPLAYS, INC.
09/17/99
3