LC320DXN datasheet(18/36 Pages) LG

18 / 36 page

Product Specification

LC320DXN

Ver. 1.0

18 / 36

Table 11. GRAY SCALE SPECIFICATION

Gray Level

Luminance [%] (Typ.)

0.08

L15

0.27

L31

1.04

L47

2.49

L63

4.68

L79

7.66

L95

11.5

L111

16.1

L127

21.6

L143

28.1

L159

35.4

L175

43.7

L191

53.0

L207

63.2

L223

74.5

L239

86.7

L255

100

Note : 1. Contrast Ratio(CR) is defined mathematically as :

Surface Luminance with all white pixels

Contrast Ratio =

Surface Luminance with all black pixels

It is measured at center 1-point.

2. Surface luminance are determined after the unit has been ‘ON’ and 1 Hour after lighting the

backlight in a dark environment at 25± 2°C. Surface luminance is the luminance value at center

1-point across the LCD surface 50cm from the surface with all pixels displaying white.

For more information see the FIG. 2.

3. The variation in surface luminance ,

 WHITE is defined as :

 WHITE(5P) = Maximum(L

on1,Lon2, Lon3, Lon4, Lon5) / Minimum(Lon1,Lon2, Lon3, Lon4, Lon5)

Where L

on1 to Lon5 are the luminance with all pixels displaying white at 5 locations .

For more information, see the FIG. 2.

4. Response time is the time required for the display to transit from any gray to white (Rise Time, Tr

and from any gray to black (Decay time, Tr

D). For additional information see the FIG. 3.

※ G to G

BW Spec stands for average value of all measured points.

Photo Detector : RD-80S / Field : 2 °

5. G to G σ is Variation of Gray to Gray response time composing a picture

G to G (σ) =

6. 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 module surface. For more information, see the FIG. 4.

7. Gray scale specification

Gamma Value is approximately 2.2. For more information, see the Table 11.

Σ(Xi- u)2

Xi = Individual Data

u = Data average

N : The number of Data

√

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