PD064VT4

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Note 9-5 : The uniformity of LCD is defined as

The Minimum Brightness of the 9 testing Points

U =

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).

1/6

1/6

2/6

2/6

1/6

1/6

2/6

2/6

YA-YB

Note 9-6 : Cross Talk (CTK) =

YA

×

100%

YA : Brightness of Pattern A

YB : Brightness of Pattern B

Pattern A

(Gray Level 31)

Pattern B

(Gray Level 31, central

black box exclusive)

: Testing Point (A and B are at the same point.)

YA

YB

1/3

1/3

1/3

1/3

1/3

1/3

Black

(Gray Level 0)