Product Specification

LP140WD2

Liquid Crystal Display

Ver. 1.0

Dec. 16. 2010

7 / 28

Note)

1. The measuring position is the connector of LCM and the test conditions are under 25℃, fv = 60Hz,

Black pattern.

2. The specified Icc current and power consumption are under

3. This Spec. is the max load condition for the cable impedance designing.

4. The below figures are the measuring Vcc condition and the Vcc control block LGD used.

The Vcc condition is same as the minimum of T1 at Power on sequence.

5. This impedance value is needed for proper display and measured form LVDS Tx to the mating connector.

6. The measuring position is the connector of LCM and the test conditions are under 25℃.

7. The current and power consumption with LED Driver are under the Vled = 12.0V , 25℃, Dimming of

Max luminance and White pattern with the normal frame frequency operated(60Hz).

8. The below figures are the measuring Vled condition

and the Vled control block LGD used.

VLED control block is same with Vcc control block.

9. The operation of LED Driver below minimum dimming ratio may cause flickering or reliability issue.

10. If Jitter of PWM is bigger than maximum, it may induce flickering.

11. This Spec. is not effective at 100% dimming ratio as an exception because it has DC level equivalent

to 0Hz. In spite of acceptable range as defined, the PWM Frequency should be fixed and stable for

more consistent brightness control at any specific level desired.

12. The life time is determined as the time at which brightness of LCD is 50% compare to that of minimum

value specified in table 7. under general user condition.

10%

90%

0.5ms

3.3V

0V

10%

90%

0.5ms

12.0V

0V

Rising time

Vcc

Rising time