LH1687 데이터 시트보기 (PDF) - Sharp Electronics

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LH1687

240-output TFT-LCD Source Driver IC

Sharp Electronics 

(b) Example of Delta Pixel Array Panel Connection

Video Signals G R B

VA VB VC

LH1687

OS1 OS2 OS3

OS238 OS239 OS240

LH1687

Sampling

Data

1st Line R G B R

2nd Line

BRGB

3rd Line R G B R

BRGB

MODE = "H"

RGBRG

MODE = "L"

BRGB

MODE = "H"

Connection of video signal input pins

Video signal input pin

VA VB VC

Video signal

G

R

B

Setting of video signals that are to be sampled by output circuits and MODE pin condition

1st LINE 2nd LINE 3rd LINE

AFTER 4th LINE

OS (3n + 1)

R

B

R

B and R are alternately selected.

OS (3n + 2)

G

R

G

R and G are alternately selected.

OS (3n + 3)

B

G

B

G and B are alternately selected.

MODE pin setting

"H"

"L"

"H" "L" and "H" are alternately selected.

(n = 0, 1, 2, π, 79)

NOTES :

• Set the MODE pin condition during blanking period.

• Input the horizontal shift clock signal of CK pin by shifting the phase for each line according to the shift of the pixels

connected to the same source bus line.

If the pixels connected to the same source bus line are shifted by half the pixels, change the clock phase 90 degrees.

Clock phase must be changed during blanking period.

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