參數(shù)資料
型號： 933841600005
廠商： NXP SEMICONDUCTORS
元件分類： 顯示驅(qū)動器
英文描述： LIQUID CRYSTAL DISPLAY DRIVER, U
封裝： DIE
文件頁數(shù)： 44/44頁
文件大小： 192K
代理商： 933841600005
2001 Oct 02
9
Philips Semiconductors
Product specication
Universal LCD driver for low multiplex rates
PCF8576
6.4
LCD drive mode waveforms
The static LCD drive mode is used when a single
backplane is provided in the LCD. Backplane and segment
drive waveforms for this mode are shown in Fig.4.
When two backplanes are provided in the LCD, the 1 : 2
multiplex mode applies. The PCF8576 allows use of
1
2bias or 13bias in this mode as shown in Figs 5 and 6.
When three backplanes are provided in the LCD, the 1 : 3
multiplex drive mode applies, as shown in Fig.7.
When four backplanes are provided in the LCD, the 1 : 4
multiplex drive mode applies, as shown in Fig.8.
V
state1 t
()
V
S
n
t
()
V
BP0 t
()
–
=
V
on(rms)
V
op
=
V
state2 t
()
V
S
n1
+
t
()
V
BP0 t
()
–
=
V
off(rms)
0V
=
Fig.4 Static drive mode waveforms (Vop =VDD VLCD).
MBE539
V DD
V LCD
V DD
V LCD
V op
Vop
state 1
0
BP0
Sn
S n 1
V op
Vop
state 2
0
(a) waveforms at driver
(b) resultant waveforms
at LCD segment
LCD segments
state 1
(on)
state 2
(off)
Tframe
VDD
相關(guān)PDF資料
PDF描述
935064190005 LIQUID CRYSTAL DISPLAY DRIVER, U
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