Product Specification

LP140WH4

Liquid Crystal Display

Ver. 1.1

Dec. 17, 2010

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3. Electrical Specifications

3-1. Electrical Characteristics

Table 2. ELECTRICAL CHARACTERISTICS

The LP140WH4 requires two power inputs. The first logic is employed to power the LCD electronics and to

drive the TFT array and liquid crystal. The second backlight is the input about LED BL.with LED Driver.

Parameter

Symbol

Values

Unit

Notes

Min

Typ

Max

LOGIC :

Power Supply Input Voltage

3.0

3.3

3.6

V

1

Power Supply Input Current

Mosaic

-

300

345

mA

2

Power Consumption

-

1.0

1.2

W

2

Power Supply Inrush Current

-

-

1500

mA

3

LVDS Impedance

90

100

110

Ω

4

BACKLIGHT : ( with LED Driver)

LED Power Input Voltage

7.0

12.0

21.0

V

5

LED Power Input Current

-

225

245

mA

6

LED Power Consumption

-

2.7

2.9

W

6

LED Power Inrush Current

-

-

1500

mA

7

PWM Duty Ratio

1

-

100

%

8

PWM Jitter

-

0

-

0.2

%

9

PWM Impedance

20

40

60

k

Ω

PWM Frequency

150

-

1000

Hz

10

PWM High Level Voltage

V

PWM_H

2.2

-

5.3

V

PWM Low Level Voltage

V

PWM_L

0

-

0.3

V

LED_EN Impedance

20

40

60

k

Ω

LED_EN High Voltage

2.2

-

5.3

V

LED_EN Low Voltage

0

-

0.3

V

Life Time

12,000

-

-

Hrs

11