Display Inspection - HTC Sapphire Service Manual

Doc. Title
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
D: Diameter / L: Length / W: Width / N: Number of defects/ S: Distance from dot to dot
Inspecting distance: 30 ± 5cm / Mechanical inspection angle 90 degrees /
LCM inspection angle 90±15 degrees / Inspection time:5 secs per surface.
Ambient illumination is to be 500-1100 lux
The 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.

5.2 Display inspection

Inspection Defects
Electrical Characteristic
Defects
Foreign Scratch,
Objects or Lint
on power off
status
HTC CONFIDENTIAL
HTC Corporation.
.
Sapphire Service Manual
Single
Bright
2 adjacent
Dots
3 or more
adjacent
Single
Dark Dots
2 adjacent
Dark or Bright lines
All Allowable Dots Defects Total Number
Shift and tilt of screen
viewed area
Scratch
Lint (linear foreign
objects)
Spots
Fish eye on film
Breakage on film surface Not acceptable
Total acceptable defect quantity
Doc. No.
Issued Date
Revised Date
Page
Accept Level
Red+ Green+ Blue 3, S > 5mm.
0
0
Total Number 2, S > 5mm.
0
0
3, S > 5mm.
The black edge around display area must
be detected by front view.
0.03 < W 0.1 (mm)
L 5 (mm), N 2 (mm)
0.03 < W 0.1 (mm)
0.3 < L 3.0 (mm)
N 5
0.1 < D 0.3 (mm), N
0.1 < D 0.4 (mm), N
10
DOC-00051810 REV.
2008/12/29
AX02
2009/01/14
59 of 91
Level
Minor
Minor
Minor
Minor
Minor
Minor
Minor
Minor
Minor
Minor
4 Minor
4 Minor
Minor
Minor
SM-TP008-1125