LS027B4DH01 Datasheet, PDF (20/29 Pages) Sharp Electrionic Components – Technical Literature For TFT-LCD Module

SPEC No.
MODEL No.
LCY-12T09602C
LS027B4DH01
PAGE
18
6-5-5 COM Inversion
There are two types of inputs, COM signal serial input (EXTMODE=”L”) and external COM signal input (EXTMODE=”H”).
EXTMODE=“L”
SCS
SI
COM
M0 M1 M2
※1
M0 M1 M2
※1
fCOM
※2
M0 M1 M2
※1
※2
M1：LC polarity inversion flag: If M1is "H" then VCOM="H" is output. If M1 is "L" then VCOM="L" is output.
* 1：LC inversion has been changed by M1 flag statement.
* 2：The periods of plus polarity and minus polarity should be same length as much as possible.
EXTMODE=“H”
SCS
EXTCOMIN
COM
fEXTCOMIN
※1
※2
twEXTCOMINH
※1
fCOM
※1
※2
※1：LC inversion polarity has been set by the rising timing of EXTCOMIN in internal circuit block as COMZ signal,
※2：The period of EXTCOMIN should be constant.
② EXTCOMIN input when the SCS signals is low.
SCS
EXTCOMIN
fEXTCOMIN
twEXTCOMINH
COM
※3
※4
※3
fCOM
※4
※3：LC inversion polarity has been set by the rising edge of EXTCOMIN.
※4：The period of EXTCOMIN should be constant.