Product Specification

LP140WD2

Liquid Crystal Display

Ver. 1.0

Dec. 16. 2010

13 / 28

Note)

1. Do not insert the mating cable when system turn on.

2. Valid Data have to meet “3-3. LVDS Signal Timing Specifications”

3. LVDS, LED_EN and PWM need to be on pull-down condition on invalid status.

4. LGD recommend the rising sequence of VLED after the Vcc and valid status of LVDS turn on.

LED

Parameter

Value

Units

Min.

Typ.

Max.

T

8

0

-

-

ms

T

9

0

-

-

ms

T

10

0

-

-

ms

T

11

0

-

-

ms

T

12

0.5

-

-

ms

T

13

0

-

5000

ms

Logic

Parameter

Value

Units

Min.

Typ.

Max.

T

1

0.5

-

10

ms

T

2

0

-

50

ms

T

3

0

-

-

ms

T

4

150

-

-

ms

T

5

200

-

-

ms

T

6

0

-

-

ms

T

7

0

-

10

ms

3-7. Power Sequence

Table 6. POWER SEQUENCE TABLE

0V

T

12

T

7

Interface Signal, V

i

LVDS

Power Supply Input

VCC

90%

10%

10%

0V

90%

T

1

T

2

T

3

T

4

T

5

T

6

0V

LED BL

Dimming Control Signal

PWM

0V (Low)

T

8

LED Driver Input Voltage

VLED

T

10

LED BL

On/Off Control Signal

LED_EN

T

11

T

9

Valid Data

0V

Valid Data

0V (Off)

90%

10%

T

12

90%

3.0V

3.0V

10%

T

13