T-51382D064-FW-P-AB Datasheet, PDF (15/17 Pages) OPTREX CORPORATION – LCD Module Technical Specification

Note 9-5: Cross Talk (CTK) = ^{½YA-YB½}
YA
100%
YA: Brightness of Pattern A
YB: Brightness of Pattern B
Pattern A
Pattern B
(Gray Level 31)
(Gray Level 31, central
black box exclusive)
YA
YB
1/3
1/3
1/3
1/3
1/3
: Testing Point (A and B are at the same point.)
1/3
Black
(Gray Level 0)
Note 9-6: The uniformity of LCD is defined as
U = ^{The Minimum Brightness of the 9 testing Points}
The Maximum Brightness of the 9 testing
Points
Luminance meter : BM-5A or BM-7 fast(TOPCON)
Measurement distance : 500 mm +/- 50 mm
Ambient illumination : < 1 Lux
Measuring direction : Perpendicular to the surface of module
The test pattern is white (Gray Level 63).
25%
50%
75%
25%
50%
75%
T-51382D064-FW-P-AB
OPTREX CORPORATION
Page 15/17