VL-FS-COG-VLGT6566-04 REV.B
(COG-VLGT6566-04)
OCT/2010
PAGE 14 OF 18
6. Optical Characteristics (for TFT panel only)
Table 9: Optical specifications (light source: C light)
Specifications
Min. Typ. Max.
Items
Symbol
Condition
Unit
Note
Transmittance
Contrast Ratio
T%
CR
TR
-
-
-
-
6.1
250
5
-
-
-
-
%
-
ms
ms
-
-
-
-
-
Response Time
All left side data
are based on
following
TF
15
XR
YR
XG
YG
XB
YB
XW
YW
0.590 0.620 0.650
0.314 0.344 0.374
0.276 0.306 0.336
0.533 0.563 0.593
0.103 0.133 0.163
0.119 0.149 0.179
0.281 0.311 0.341
0.319 0.349 0.379
Red
condition --
6 o’clock
Green
Blue
White
Hor.
Viewing
normal angle
θX = θY = 0°
Chromaticity
NTSC: 50%
LC: TN
Light: C light
(Machine:BM5A)
Normal Polarizer
Reference Only
-
-
-
φ
φ
θ
θ
1(3 o’clock)
2(9 o’clock)
2(12 o’clock)
1(6 o’clock)
-
-
-
-
45
45
15
35
-
-
-
-
Center
CR≥10
Viewing angle
deg.
Ver.
Note 1: Definition of Contrast Ratio (CR):
The contrast ratio can be calculated by the following expression.
Contrast Ratio (CR) = L63 / L0
L63: Luminance of gray level 63
L0: Luminance of gray level 0
CR = CR (5)
CR (X) is corresponding to the Contrast Ratio of the point X at Figure in Note 5.
Note 2: Definition of Response Time (TR, TF):
Figure 9
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