LP121WX4-TLA1 查看數據表（PDF） - LG

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LP121WX4-TLA1

Liquid Crystal Display - 12.1” WXGA TFT LCD

LG 

Product Specification

LP121WX4

Liquid Crystal Display

3-4. Signal Timing Specifications

This is the signal timing required at the input of the User connector. All of the interface signal timing should be

satisfied with the following specifications and specifications of LVDS Tx/Rx for its proper operation.

Table 4. TIMING TABLE

ITEM

Symbol

Min

Typ

Max

Unit

Note

DCLK

Frequency

Period

fCLK

-

Thp 1376

69.3

1408

-

MHz

1480

Hsync Width

tWH

24

32

40

tCLK

Width-Active

tWHA

1280

1280

1280

Vsync

Period

Width

tVP

810

820

tWV

2

4

832

6

tHP

Width-Active

tWVA

800

800

800

Data

Horizontal back porch

Horizontal front porch

tHBP

56

72

tHFP

16

24

96

tCLK

64

Enable

Vertical back porch

Vertical front porch

tVBP

6

12

18

tHP

tVFP

2

4

8

Appendix) all reliabilities are specified for timing specification based on refresh rate of 60Hz.

However, LP121WX4 has a good actual performance even at lower refresh rate (e.g. 40Hz or 50Hz)

for power saving mode, whereas LP121WX4 is secured only for function under lower refresh rate.

60Hz at Normal mode, 50Hz, 40Hz at Power save mode. Don’t care Flicker level (power save mode).

3-5. Signal Timing Waveforms

Condition : VCC =3.3V

Data Enable, Hsync, Vsync

High: 0.7VCC

Low: 0.3VCC

tCLK

DCLK

0.5 Vcc

Hsync tWH

tHBP

Data Enable

tWV

Vsync

tVBP

Data Enable

Ver. 0.0

tHP

tWHA

tVP

tWVA

Mar. 23, 2010

tHFP

tVFP

11 / 32

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