TOPWAY

LCD Module User Manual

LMT070DICFWD-NDA-2

www.topwaysz.com

Document Name: LMT070DICFWD-NDA-2-Manual-Rev0.4.DOC

Page: 6 of 11

Cautions:

Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.

Note:

*1: BL_EN=Hi, BL_ADJ=Hi;

*2: Recommended BL_ADJ PWM Freq. is 3kHz

*3: Terminal circuit（Fig.1） :

Fig.1 Terminal circuit

5.3

Touch panel Characteristics

Items

MIN.

TYP.

MAX.

Unit

Note

Operating Voltage

-

5.0

-

V

Note1

Operating Force

100

-

160

g

Note1

Life Time

-

1,000,000

-

times

Note1

X Resistance

100

-

400

Ω

-

Y Resistance

450

-

950

Ω

High temperature and humidity

-

-

60 ×

℃

90%RH/240 Hours

-

Note2

Note1: Exceeding the recommended Condition could cause substantial damage to the touch panel and

shorten its lifetime.

Note2: Before cosmetic and function test, the product must have enough recovery time,

at least 24 hours at room temperature.

Touch Panel Logic Details

5.4

Power On/Off Sequence

Items

Symbol

MIN.

TYP.

Max.

Unit

Note

VDD 3.0V to signal starting

Tp1

0

-

50

ms

Signal starting to backlight on

Tp2

150

-

-

ms

Signal off to VDD 3.0V

Tp3

0

-

50

ms

Backlight off to signal off

Tp4

150

-

-

ms

Interface Power On/Off Sequence

YL

YR

XD

XU