LP140WH2 datasheet(14/23 Pages) LG

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Product Specification

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LP140WH2

Liquid Crystal Display

Ver. 1.0

Apr. 05, 2010

100

L63

74.2

L55

10.9

L23

21.0

L31

34.8

L39

52.5

L47

4.25

L15

0.8

0.0

Luminance [%] (Typ)

Gray Level

Note)

1. Contrast Ratio(CR) is defined mathematically as

Surface Luminance with all white pixels

Contrast Ratio =

Surface Luminance with all black pixels

2. Surface luminance is the average of 5 point across the LCD surface 50cm from the surface with

all pixels displaying white. For more information see FIG 1.

WH = Average(L1,L2, … L5)

3. The variation in surface luminance , The panel total variation (δ

WHITE) is determined by measuring LN

at each test position 1 through 13 and then defined as followed numerical formula.

For more information see FIG 2.

Maximum(L

1,L2, … L13)

WHITE =

Minimum(L

1,L2, … L13)

4. Response time is the time required for the display to transition from white to black (rise time, Tr

R) and

from black to white(Decay Time, Tr

D). For additional information see FIG 3.

5. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are determined

for the horizontal or x axis and the vertical or y axis with respect to the z axis which is normal to the

LCD surface. For more information see FIG 4.

6. Gray scale specification

* f

V = 60Hz

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