HTC SM-TP001-0704 service manual Display inspection

HTC Corporation

.

Doc. Title Blackstone Service Manual

Doc. No.

Issued Date

Revised Date

Page

DOC-00045694 REV.

2008/8/21

A01

2008/11/6

74 of 96

IT IS GENERIC COSMETIC INSPECTION CRITERIA FOR ALL PRODUCTS IF THERE HAVE ANY CONFLICT WITH THESE GENERIC CRITERIONS; PLEASE FOLLOW THE PRODUCT INSPECTION CRITERIA RESPECTIVELY.

Description

¾D: Diameter / L: Length / W: Width / N: Number of defects/ S: Distance from dot to dot

¾Inspecting distance: 30 ± 5cm / Mechanical inspection angle：90 degrees /

¾LCM inspection angle：90±15 degrees / Inspection time:5 secs per surface.

¾Ambient illumination is to be 500-1100 lux

¾The inspection condition of Newton ring:

a.Inspection distance: 30cm / Inspection time: 5 sec

b.Ambient illumination is to be 500-1000 Lux (Incandescent lamp)

c.Inspection should be performed under the condition that LCD screen could reflect the mirror image of lamp.

d.The criteria of Newton ring’s tinges and measure of area must follow up the worst-case sample.

6.2Display inspection

Inspection Defects			Accept Level	Level
	Bright	Single	Red+ Green+ Blue ≦ 3, S > 5mm.	Minor
		2 adjacent	0	Minor
	Dots	3 or more	0	Minor
		adjacent
Electrical Characteristic	Dark Dots	Single	Total Number ≦ 2, S > 5mm.	Minor
Defects		2 adjacent	0	Minor
	Dark or Bright lines		0	Minor
	All Allowable Dots Defects		Total Number ≦ 3, S > 5mm.	Minor
	Shift and tilt of screen		The black edge around display area must	Minor
	viewed area		be detected by front view.
	Scratch		0.03 < W ≦ 0.1 (mm)	Minor
			L ≦ 5 (mm), N ≦ 2 (mm)
Foreign Scratch,	Lint (linear foreign		0.03 < W ≦ 0.1 (mm)
			0.3 < L ≦ 3.0 (mm)	Minor
Objects or Lint	objects)
			N ≦ 5
on power off
	Spots		0.1 < D ≦ 0.3 (mm), N ≦ 4	Minor
status
	Fish eye on film		0.1 < D ≦ 0.4 (mm), N ≦ 4	Minor
	Breakage on film surface		Not acceptable	Minor
	Total acceptable defect quantity ≦ 10			Minor

HTC CONFIDENTIAL

SM-TP001-0704