5-8
2. External inspection on the LCD module
2.1 Inspection Method
2.1.1 Environmental
a) Temperature: 20 degree
b) Ambient light: About 150 lx and non-directive when operating inspection.
About 1000 lx and non-directive when non-operating inspection.
c) Back light:
When non-operating inspection, back light should be off.
2.1.2 Viewing Zone
a) The figure shows the correspondence between eyes (of inspector)
and TFT-LCD module.
θ
< 45 degree: When non-operating inspection.
θ
< 5 degree: When operating inspection.
b) Inspection should be executed only from front side and only A-zone.
Cosmetic of B-zone and C-zone are ignore.
2.1.3 Definition of Zone
A-Zone: Display area (Pixel area)
B-Zone: Area between A-zone and C-zone
C-Zone: Metallic bezel area (include I/F connector)
Inspection view
300mm
θ
θ
TFT-LCD Module
A-Zone
B-Zone
C-Zone