Cosmetic Outgoing Inspection Specification
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Cosmetic Outgoing Inspection Specification ( 19” S XGA ( 1 28 0 x 1024 ) Monitor TFT LCD ). Customer. Samsung. J. S. Shim Senior Manager CS Group(LCD). CS Team LCD BUSINESS SAMSUNG Electronics Co., LTD. Address : #510 Seongseong-Dong, Cheonan-City, Chungcheongnam-Do, Korea, 330-300

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Cosmetic Outgoing Inspection Specification

(19” SXGA( 1280 x 1024 ) Monitor TFT LCD)

Customer

Samsung

J. S. Shim

Senior Manager

CS Group(LCD)

CS Team

LCD BUSINESS

SAMSUNG Electronics Co., LTD

Address : #510 Seongseong-Dong, Cheonan-City, Chungcheongnam-Do, Korea, 330-300

Tel. 82-41-529-6793


1.1 Outgoing Inspection Criteria

1.1.1 Inspection Introduction

1.1.1.1 Conditions

1.1.1.2 Defect Modes

foreign material

points on the display which appear dark / bright and remain unchanged in size and without halo effect (please refer to Appendix 1 for detail figure)

spot

points on the display which appear dark / bright and remain unchanged in size and with halo effect (please refer to Appendix 1 for detail figure)

dark / bright lines

lines on the display which appear dark / bright and remain unchanged in size

polarizer scratch

when the unit is lit a light, line is seen across a darker background; line does not vary in size

polarizer dent

when the unit is lit a light, light(white) spots appear against a darker background, and do not vary in size

bright/dark dot

a sub-pixel (R, G, B dot) stuck off / on


D

W

L

W

L

D

1.1.2 Mechanical Inspection

* If there is none identified criteria in this specification, Samsung will refer production

specification that Customer and Samsung agreed.

* If there is mechanical dimension issue which has no designated tolerance, Samsung will

apply natural tolerance.

1.1.3 Visual Inspection

[ D : diameter, W : width, L : length, N : count ]

*1 : Translucent edge is ignored in measuring the diameter of spot.


1.1.4 Electrical Inspection

[ L : length, N : count ]

  • Definitions/ Notes;

  • - On/Off bright dot count as single bright dot.

  • Adjacent dot count as single dot defect for total number of dot defect.

  • Adjacent rule is only for dot defect not uniformity.

  • Uniformity issues should inspect at Black, White, R,G,B Pattern

  • not a gray pattern.


Fig. 1. Bright dot defect description

【two adjacent】

( Good )

( NG )

Fig. 2. Dark dot defect description

【two adjacent】

(Good)

(N. G)


15 mm

14.9 mm

Good

N. G

5 mm

4.9 mm

N. G

N. G

Fig. 3. Minimum distance between dot defects

【bright dot - to - bright dot】

【dark dot - to - dark dot】

* Adjacent two & three dots in horizontal direction will be considered as one dot.

* Minimum distance criteria is applied to the defect which are not defined in the

spec. That is adjacent dots (two or three) do not follow minimum distance criteria.

* The distance between bright dot & dark dot will not be considered.

* The distance between dot & mechanical defect will not be considered.


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