Revision Ver 1.0 October 14, 1998

LM151X2

Liquid Crystal Display

Product Specification

Maximum Ratings

The following are maximum values which, if exceeded, may cause faulty operation or damage to the unit.

Table 1 ABSOLUTE MAXIMUM RATINGS

Values

Parameter

symbol

Min.

Max.

Units

Notes

Power Input Voltage

Lamp Current

Operating Temperature

Storage Temperature

0

-

0

-20

+3.6

9.0

+50

+60

mArms

º

º

at 25º

2

1

Note:

1. The Relative Humidity must not exceed 95% non-condensing at temperatures of 40º or less.

At temperatures greater than 40º, the wet bulb temperature must not exceed 39º.

2. Current shall be measured at ground line.

3. Electrical Specifications

The LM151X2 requires two power inputs. One input is employed to power the LCD electronics and to

drive the voltages to drive the TFT array and liquid crystal. And the second input for the backlight CCFL,

is typically generated by an inverter. The inverter is an external unit to the LCD.

Table 2 ELECTRICAL CHARACTERISTICS:

Values

Parameter

Symbol

Min.

Typ.

Max.

Units

Notes

MODULE :

Power Supply Input Voltage

Power Supply Input Current

Power Supply Kick Off Current

Data Input High Voltage

Data Input Low Voltage

BACK LIGHT :

Back light Input voltage

Backlight Input Current

Lamp Kick-Off Voltage

Operating Frequency

Life time

3.15

-

-

-0.5

685

3.0

-

-

1290

1660

30

25,000

3.3

500

-

-

-

585

8.0

-

-

-

-

50

40,000

3.45

800

1,500

570

9.0

880

1145

-

-

80

-

mA

mA

V

V

mA

KHz

hours

1

1, 2

7

1

1

3

At 25 2

At 0 2

4

At 25 2

At 0 2

5

6

Notes: 1. All values shall be measured at the user connection.

frequency of 65MHz under 9 gray pattern.

3. The backlight input current shall be measured at the ground cable and does not include loss

of external inverter.

4. Voltages at both ends of the lamp.

5. Voltages at secondary side of transformer using the balancing capacitor, 22pF in inverter.

These voltages can be changed with customer’s own design of inverter.

6. The life time is defined as the time at which brightness of lamp is 50% compare to that of

initial value at the typical lamp current.

7. Power supply kick off current means power supply input current at the moment of LCM power

on. This current is higher than the current at the normal operating condition and it lasts for

50~100ms.

Alpha Point Ltd.

P.O. Box 41

00751 Helsinki, Finland

http://www.alpha.fi

Tel.: +358-9-34 64 34 1

Fax: +358-9-34 64 34 2