E Ink Holdings Inc.

PD080SL5

The information contained herein is the exclusive property of E Ink Holdings Inc. and shall not be distributed, reproduced, or

disclosed in whole or in part without prior written permission of E Ink Holdings Inc.

PAGE:22

Note 13-6: 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).

25%

50%

75%

25%

50%

75%

YA-YB

Note 13-7: Cross Talk (CTK) =

YA

×100%

YA: Brightness of Pattern A

YB: Brightness of Pattern B

Luminance meter : BM 5A (TOPCON)

Measurement distance : 500 mm +/- 50 mm

Ambient illumination : < 1 Lux

Measuring direction : Perpendicular to the surface of module

Pattern A

(Gray Level 31)

Pattern B

(Gray Level 31, central

black box exclusive)

: Measuring 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)