LC151X01-A3 LIQUID CRYSTAL DISPLAY
TITLE: LC151X01-A3 REV. 1 PAGE 4 OF 20
3. ELECTRICAL SPECIFICATIONS
3.1 Electrical Characteristics
The LC151X01-A3 requires two power inputs. One is employed to power the LCD
electronics and to drive the TFT array and liquid crystal. The second input which
powers the CCFL, is typically generated by an inverter. The inverter is an external
unit to the LCD.
Table 2 ELECTRICAL CHARACTERISTICS:
Power Supply Input Voltage
Power Supply Input Current
Established Starting Voltage
Discharge Stabilization Time
Power Consumption(4 CCFL’s)
Half Life Time
520(9mA) 540(8 mA) 660(3mA) VRMS
3.0 8.0 9.0 mA
The specified current and power consumption are under the Vcc = 5.0V ,
25°C, fv = 60Hz condition whereas full black pattern is displayed and fv is
the frame frequency.
This impedance value is needed to proper display and measured form
TMDS Tx to the mating connector.
The duration of rush current is about 1ms.
The variance of the voltage is ±10%.
The transformer output voltage in the inverter must be high, considering
loss of the ballast capacitor in the inverter.
Let’s define the brightness of the lamp after being lighted for 5 minutes
as 100%. Ts is the time required for the brightness of the center of the
lamp to be not less than 95%.
The lamp power consumption shown above does not include loss of
The life time is determined as the time at which brightness of lamp is
50% compared to that of initial value at the typical lamp current on
condition of continuous operating at 25 ±2°C. 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.
Alpha Point Ltd.
01300 Vantaa, Finland
Tel.: +358-9-34 64 34 1
Fax: +358-9-34 64 34 2