Product Specification

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LM170E01

Liquid Crystal Display

Ver 1.0

Mar. 28, 2005

3. Electrical specifications

3-1. Electrical characteristics

The LM170E01-TLA1 requires two power inputs. One is employed to power the LCD electronics and to

drive the TFT array and liquid crystal. Another which powers the CCFL, is typically generated by an inverter.

The inverter is an external unit to the LCD.

Table 2. Electrical Characteristics

Note. The design of the inverter must have specifications for the lamp in LCD Assembly.

The performance of the Lamp in LCM, for example life time or brightness, is extremely influenced by

the characteristics of the DC-AC Inverter. So all the parameters of an inverter should be carefully

designed so as not to produce too much leakage current from high-voltage output of the inverter.

When you design or order the inverter, please make sure unwanted lighting caused by the mismatch of

the lamp and the inverter(no lighting,flicker,etc) never occurs.When you confirm it,the LCD Assembly

should be operated in the same condition as installed in your instrument.

Note. Do not attach a conducting tape to lamp connecting wire. If the lamp wire attach to conducting tape,

TFT-LCD Module have a low luminance and the inverter has abnormal action because leakage current

occurs between lamp wire and conducting tape.

=60Hz condition. Mosaic(black & white) pattern shown in the [ Figure 3 ] is displayed.

3. Operating voltage is measured under 25 .The variance of the voltage is

10%.

Otherwise,the lamps may not be turned on.

Parameter

Symbol

Values

Min.

Typ.

Max.

Units

Notes

MODULE :

Power Supply Input Voltage

Permissive Power Input Ripple

Power Supply Input Current

Differential Impedance

Power Consumption

Rush Current

LAMP for each CCFL:

Operating Voltage

Operating Current

Established Starting Voltage

at 25 C

at 0 C

Operating Frequency

Discharge Stabilization Time

Power Consumption

Life Time

Zm

4.5

-

-

90

-

-

640

(@7.0mA)

2.5

-

-

40

-

-

50,000

650

(@6.5mA)

6.5

-

-

60

-

16.90

-

745

(@2.5mA)

7.0

1000

1250

70

3

18.60

-

V

V

A

ohm

Watts

A

kHz

Minutes

Watts

Hrs

1

2

3

4

5

6

7

8

5.0

-

0.54

100

2.7

2.0

5.5

0.1

0.63

110

3.15

3.0