LILLIPUT 668gl-70np Specification Guide
I
NNO
L
U
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SPEC NO.: A070-84-TT- 12 Date : 2009/02/23
Page : 22/27
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Note 7:
Definition of Luminance Uniformity
Active area is divided into 9 measuring areas (Refer to Fig. 4-4 ).Every measuring
point is placed at the center of each measuring area.
point is placed at the center of each measuring area.
max
min
B
B
(Yu)
Uniformity
Luminance
=
L-------Active area length W----- Active area width
W
W
/3
W
/3
W
/6
L/3
L/3
L/6
L
Fig. 4-4 Definition of measuring points
B
max
: The measured maximum luminance of all measurement position.
B
min
: The measured minimum luminance of all measurement position.