Revision Ver 1.0 October 14, 1998

LM151X2

Liquid Crystal Display

Product Specification

-2. The Supplier shall screen all of the products in the lot and repair or replace the defective products

within a reasonable time period at the Customer’s facility.

-3. The Customer shall screen the entire lot for the good LCMs at the expense of the Supplier to be

separately agreed upon. The rejected products shall be returned to the place designated by the Supplier.

8. Inspection Specifications

a) General conditions

i) The environment conditions

- Ambient temperature : 20~25

- Humidity

: 65 5%RH

- Ambient illumination : Single 20W fluorescent lamp non-directive (About 300 to 700 Lux)

ii) Viewing distance

The distance between the LCM and the eyes of the inspector shall be at least 35cm.

III) Inspection zone for external inspection

External inspection should be performed from front side(Display area)

b) External Inspection Standards

Inspection items

Inspection Standards

Remark

Dent

Dot shape

D 0.5, N 8

On the polarizer

Scratches

Line shape

0.01 W 0.2, 5 L 20, N 4

On the polarizer

Dot shape

0.2 D 0.5, N 5

Operating

Stain inclusion

Line shape

0.05 W 0.1, 0.3 L 3.0, N 5

Operating

W : Width(mm)

L : Length(mm)

D : Average diameter(mm)

Note) Those extraneous substances which can be wiped out easily are acceptable.

c) Display-on Inspection(Visual inspection)

i) Dot Defect

- Bright Dot Defects : When the LCM is turned on, dots(sub-pixels) which appear bright in the display

area at Black(Dark) Mode are bright dot defects.

R, G or B 1 dot

: 6 Max.

R, G or B join 2 dots : 1 Max.

R, G or B join 3 dots : 0 max.

Minimum Distance between defects : D

10mm

Total amount of Bright dot defects : 6 Max.

- Black Dot defects : When the LCM is turned on, dots(sub-pixels) which appear black in the display

area at White(Bright) Mode are black dot defects.

1 dot

: 6 Max.

Join 2 dots : 1 Max.

Join 3 dots : 0 max.

Minimum Distance between defects : D

10mm

Total amount of Black dot defects : 6 Max.

- Total amount of Dot Defect(Bright and Black Dot) : 10 Max. (Combination)

ii) Line Defect

All line defects such as vertical, horizontal or cross line defect are not allowed.

Note 1) Dot Defect : Defected area > 1/2 dot

2) 1 Dot

: Defect dot is isolated, not attached to other defect dot.

3) 3 Join N Dot : N dots are consecutive. (N means the number of defect dots)

9. Other

If any problems arise with the LCM supplied by LGE, the Customer and Supplier will cooperate and make

efforts to solve it with mutual confidence and respect.

Alpha Point Ltd.

P.O. Box 41

00751 Helsinki, Finland

http://www.alpha.fi

Tel.: +358-9-34 64 34 1

Fax: +358-9-34 64 34 2