參數(shù)資料
型號(hào): KS0713
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: Driver & Controller for STN LCD(STN LCD驅(qū)動(dòng)器和控制器)
中文描述: 驅(qū)動(dòng)程序
文件頁(yè)數(shù): 29/59頁(yè)
文件大?。?/td> 304K
代理商: KS0713
65COM/132SEG DRIVER & CONTROLLER FOR STN LCD
KS0713
29
VOLTAGE FOLLOWER CIRCUITS
V
LCD
voltage (V0) is resistively divided into four voltage levels (V1, V2, V3, V4), and those output impedance are
converted by the voltage follower to increase drive capability. Table 14 shows the relationship between V1
V4
level and each duty ratio.
REFERENCED POWER SUPPLY CIRCUIT FOR DRIVING LCD PANEL
Table 14. The Relationship Between V1
-
V4 Level and Each Duty Ratio
Duty
Ratio
1/33
DUTY 1
DUTY 0
LCD Bias
V1
V2
V3
V4
L
L
1/5
1/6
1/6
1/8
1/7
1/9
4/5
×
V0
5/6
×
V0
5/6
×
V0
7/8
×
V0
6/7
×
V0
8/9
×
V0
3/5
×
V0
4/6
×
V0
4/6
×
V0
6/8
×
V0
5/7
×
V0
7/9
×
V0
2/5
×
V0
2/6
×
V0
2/6
×
V0
2/8
×
V0
2/7
×
V0
2/9
×
V0
1/5
×
V0
1/6
×
V0
1/6
×
V0
1/8
×
V0
1/7
×
V0
1/9
×
V0
1/49
L
H
1/65
H
L/H
Figure 12. When Using All LCD Power Circuits (4-Times, VC: On, V/R: On, V/F: On)
V
DD
MS INTRS
VOUT
C3+
C3 -
C2+
C2 -
C1+
C1 -
VR
V0
V1
V2
V3
V4
Vss
C1
C1
C2 - +
C2 - +
C2 - +
C2 - +
C2 - +
C1
C1
V
DD
MS INTRS
VOUT
C3+
C3 -
C2+
C2 -
C1+
C1 -
VR
V0
V1
V2
V3
V4
Vss
C1
C1
C2 - +
C2 - +
C2 - +
C2 - +
C2 - +
C1
C1
Ra
Rb
Vss
When using internal regulator resistors
When not using internal regulator resistors
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