SPEC No.

LCY-1210401A

MODEL No.

LS027B7DH01

PAGE

19

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”

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

※

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.

SCS

EXTCOMIN

COM

※

3：LC inversion polarity has been set by the rising edge of EXTCOMIN.

※

4：The period of EXTCOMIN should be constant.

fCOM

※

2

※

2

※

1

※

1

fEXTCOMIN

twEXTCOMINH

fCOM

※

4

※

4

※

3

fEXTCOMIN

twEXTCOMINH

②

EXTCOMIN input when the SCS signals is low.

※

3

※

1

SCS

SI

COM

M0

M1

M2

M0

M2

M1

M2

M0

M1

fCOM

※

2

※

2

※

1

※

1

※

1