LCX026ALG データシートの表示（PDF） - Sony Semiconductor

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LCX026ALG

2.3cm (0.9-inch) Black-and-White LCD Panel

Sony Semiconductor 

LCX026ALG

Input Signals

1. Input signal voltage conditions (VSS = 0V)

Item

Symbol

Min.

Typ.

Max.

Unit

H shift register input voltage (Low) VHIL

–0.5

0.0

HST, HCK1, HCK2, RGT (High) VHIH

4.5

5.0

0.4

V

5.5

V

V shift register input voltage (Low) VVIL

MODE1, MODE2, MODE3,

–0.5

0.0

BLK, VST, VCK, PCG,

ENB, DWN

(High) VVIH

4.5

5.0

0.4

V

5.5

V

Video signal center voltage

Video signal input range∗1

Common voltage of panel∗2

VVC

Vsig

Vcom

6.8

7.0

7.2

V

VVC – 4.5

7.0

VVC + 4.5 V

VVC – 0.5 VVC – 0.4 VVC – 0.3 V

Uniformity improvement signal

input voltage (PSIG)∗3

Vpsig

VVC ± 4.3 VVC ± 4.5 VVC ± 4.7 V

∗1 Input video signal shall be symmetrical to VVC.

∗2 The typical value of the common pad voltage may lower its suitable voltage according to the set

construction to use. In this case, use the voltage of which has maximum contrast as typical value.

When the typical value is lowered, the maximum and minimum values may lower.

∗3 Input a uniformity improvement signal PSIG in the same polarity with video signals SIG1 to 6 and which is

symmetrical to VVC. Also, the rising and falling of PSIG are synchronized with the rising of PCG pulse, and

the rise time trPSIG and fall time tfPSIG are suppressed within 800ns (as shown in a diagram below).

The optimum input voltage of PSIG may be changed according as drive conditions of the drive side.

Input waveform of uniformity improvement signal PSIG

90%

PSIG

VVC

PCG

10%

trPSIG

tfPSIG

Level Conversion Circuit

The LCX026ALG has a built-in level conversion circuit in the clock input unit on the panel. The input signal

level increases to HVDD or VVDD. The VCC of external ICs are applicable to 5 ± 0.5V.

–5–

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