LC230WX3
Liquid Crystal Display
Product Specification
Notes 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 the center point(1).
2. Surface luminance is luminance value at the center point across the LCD surface 50cm from the
surface with all pixels displaying white.
For more information, see FIG 2.
3. The variation in surface luminance , δ WHITE is defined as :
δ WHITE(5P) = Maximum(Lon1,Lon2, Lon3, ...... , Lon5) / Minimum(Lon1,Lon2, Lon3, ..... , Lon5
Where Lon1 to Lon5 are the luminance with all pixels displaying white at 5 locations .
For more information, see FIG 2.
)
4. Response time is the time required for the display to transition from black to white (Rise Time, TrR)
and from white to black (Decay Time, TrD).
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
Gamma Value is approximately 2.2.
For more information, see Table 13.
Table 13. GRAY SCALE SPECIFICATION
Gray Level
L0
Luminance [%] (Typ)
0.13
L15
0.24
L31
0.78
L47
1.81
L63
3.46
L79
6.04
L95
9.48
L111
L127
L143
L159
L175
L191
L207
L223
L239
L255
13.60
18.14
24.46
32.38
41.63
51.64
63.18
75.52
88.89
100
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Ver.1.0
Nov.22, 2005
LG [ LG SEMICON CO.,LTD. ]
