TOPWAY

LCD Module User Manual

LMT018DNBFWD-1

URL:

www.topwaydisplay.com

www.topwaysz.com

Document Name: LMT018DNBFWD-1-Manual-Rev0.1

Page: 7 of 13

Reset Timing

Item

Symbol

MIN.

TYP.

MAX.

Unit

Reset LOW pulse width

1.0

-

-

us

Reset time

-

-

120

ms

4. Optical Characteristics

Item

Symbol

Min.

Typ.

Max.

Unit

Note/ Condition

Brightness

Bp

190

-

-

Cd/m

2

Uniformity

△Bp

80%

-

-

-

θ=0

°, Φ=0° (*1,*2)

°or 270°)

-50〜+40

Deg

Viewing Angle

° or 180°)

-50〜+50

deg

(*3)

Contrast

Ratio

Cr

-

350

-

-

θ=0

°, Φ=0° (*4)

Response Time

-

30

-

Ms

θ=0

°, Φ=0° (*5)

X

0.246

0.296

0.346

Color of CIE

Coordinate

W

Y

0.265

0.315

0.365

θ=0

°, Φ=0° (*1, *6)

NTSC Ratio

S

42%

-

-

-

θ=0

°,Φ=0° (*1, *6)

Note:

*1. Measurement

The data are measured after LEDs are turned on for 5 minutes. LCM

displays full white. The brightness is the average value of 9 measured

spots.

Measurement equipment PR-705 (

Φ8mm)

Measuring condition:

- Measuring surroundings: Dark room.

- Measuring temperature: Ta=25℃.

- Adjust operating voltage to get optimum contrast at the center of the display.

Measured value at the center point of LCD panel after more than 5 minutes while backlight turning on.

It is calculated by using following formula.

△Bp = Bp (Min.) / Bp (Max.)

×100 (%)

Bp (Max.) = Maximum brightness in 9 measured spots

Bp (Min.) = Minimum brightness in 9 measured spots.

Measurement equipment PR-705 (

Φ8mm)

W

3W

3W

2W