LM240WU8
Liquid Crystal Display
Product Specification
4. Optical specification
Optical characteristics are determined after the unit has been ‘ON’ for 30 minutes in a dark
environment at 25°C. The values specified are at an approximate distance 50cm from the LCD
surface at a viewing angle of Φ and θ equal to 0 °.
FIG. 7 presents additional information concerning the measurement equipment and method.
FIG. 7 Optical characteristic measurement equipment and method
LCD Module
Optical
Stage(x,y)
Pritchard 880
or equivalent
50cm
Table 9. Optical characteristics
Ta= 25°C, VLCD=12.0V, fV=60Hz, DCLK=154MHz, Is=110mA
Values
Parameter
Contrast Ratio
Symbol
Units
Notes
Min
700
250
75
Typ
1000
300
Max
CR
LWH
δ WHITE
TGTG_AVR
Rx
1
2
3
4
Surface Luminance, white
Luminance Variation
cd/m2
%
Response Time
Gray to Gray
-
14
28
ms
RED
0.640
0.331
0.314
0.618
0.152
0.071
0.313
0.329
140
Ry
GREEN
BLUE
Gx
Color Coordinates
[CIE1931]
Gy
Typ
Typ
-0.03
+0.03
Bx
(By PR650)
By
WHITE
Wx
Wy
Horizontal
Vertical
-
-
-
-
θCST_H
θCST_V
Color Shift
(Avg. ∆u’v’ < 0.02)
Degree
5
6
100
Viewing Angle (CR>10)
General
Horizontal
Vertical
θH
θV
170
178
178
-
-
Degree
%
170
-
δGamma_H
Horizontal
Vertical
-
-
20
20
GSR @ 60dgree
7
8
(Gamma shift rate)
δGamma_V
-
Gray Scale
2.2
Ver. 0.0
Apr, 07, 2011
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LG [ LG SEMICON CO.,LTD. ]
