9
4.3
Incoming Touch Screen Glass Panel Inspection
Touch Screen glass panel inspection includes the following:
•
•
•
Mechanical Criteria on page 10
4.3.1
Inspection Requirements
Ensure that the following conditions apply prior to and during the Touch Screen inspection.
Table 5 Inspection Requirements
Inspection Condition
Description
Inspector's viewing angle
90
0
Viewing distance
40cm - 50 cm
Ambient illumination
800 - 1200 Lux (1000 Lux is recommended)
Background
Black
Ambient temperature
25° C
±
5° C
Inspection time
•
For Touch Screen up to 24”: 10 ÷ 20 sec
•
For Touch Screen between 26” - 52”: 15 ÷ 25 sec
•
For Touch Screen sizes larger than 52”: 20 ÷ 30 sec
Note: Only Touch Screen anomalies detected during inspection under the above conditions constitute grounds for rejecting
the Touch Screen.
4.3.2
General
The following general Touch Screen glass panel requirements apply:
•
Prior to inspection, clean the glass and ensure that finger prints and other foreign materials are removed
•
Ensure that adhesive material such as glue, is not exposed beyond the Active Barrier of the Touch Screen
•
If protective film covers the glass, it should be removed before inspection and returned afterwards
Note: Complying with the IQC requirements in this document does not enable the Touch Screen to be mounted “as is” onto
the monitor. Prior to mounting, clean the Touch Screen glass panel, removing marks, finger prints, dust and any
foreign object or contamination.
4.3.3
Cleaning
The following Touch Screen glass cleaning requirements apply:
•
Clean the glass before and after each activity during the integrating process
•
Clean the glass Touch Screen with clean cloth and windows dedicated liquid
only
•
Use only alcohol based solvents to dissolve oily contaminations and marks
•
Do not
use acid based solvents such as WD-40 or acetone
•
For further cleaning requirements, see
Appendix D: Cleaning Materials
