– 4 –

ACX302AK

uniformity improvement signal Vpsig differ for 4:3 display and 16:9 display.

1) During 4:3 display, input the voltage amplitude symmetrical to VVC as shown in Fig. 1.

2) During 16:9 display, input the same signal amplitude as in 1) above during the effective display portion,

and input the black signal level VpsigBK during the top/bottom black input portion as shown in Fig. 2.

Item

H/V driver input voltage

(Low)

(High)

VIL

VIH

VREF

VVC

Vsig

Vpsig

VpsigBK

Vcom

–0.3

2.6

VIH/2 – 0.3

5.3

1.0

VVC ± 2.3

VVC – 0.4

0.0

3.0

VIH/2

5.5

VVC ± 4.0

VVC ± 2.5

VVC ± 4.0

VVC – 0.3

0.3

5.5

VIH/2 + 0.3

5.7

(however, 10V or less)

VVC ± 2.7

VVC ± 4.5

VVC – 0.2

V

V

V

V

V

V

V

V

REF input voltage

Video signal center voltage

Video signal input range

Uniformity improvement signal

Common voltage of panel (Ta = 25°C)

Symbol

Min.

Typ.

Max.

Unit

2. Input signal voltage conditions

(Vss = 0V)

During 4:3 display

PSIG

VVC

Vpsig

During 16:9 display

PSIG

VVC

Vpsig

VpsigBK

VVC ± 4.0V

VVC ± 2.5V

Top/bottom black display portion

(letterbox portion)

Effective display portion

Fig. 1

Fig. 2