UPD16633B 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPD16633B

312 OUTPUT TFT-LCD SORCE DRIVER(COMPATIBLE WITH 64 GRAY SCALES)

NEC => Renesas Technology 

µPD16633B

8. CAUTIONS ABOUT FRAME INVERSION

In the case of dot inversion, n frame last line and (n+1) frame first line is the same polarity.

When write the same polarity twice, there are two cases as follows.

(1) last line output in n frame > first line output in (n+1) frame → Possible to write

(2) last line output in n frame < first line output in (n+1) frame → Not possible to write

µPD16633B has charge buffer and discharge buffer, so need to inversion polarity and write in the case of both

ways.

Vertical intervals

STB

n frame last line

(n+1) frame

first line

(n+1) frame

second line

POL

Discharge buffer

Charge buffer

S2N

VCOM

Hi-z

Hi-z

Hi-z

STB

POL

S2N

n frame last line

Vertical intervals

(n+1) frame

first line

(n+1) frame

second line

VCOM

Hi-z

Hi-z

Hi-z

Hi-z

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