Polarizing Film Inspection

EasyInspect for polarizing film inspection identifies miniscule defects that can occurduring the production, laminating and finishing process. EasyMeasure monitors the film properties, e.g. dye or polarization homogeneity, during all production steps. Together, they combine defect detection and quality monitoring of the final product.

New media, HDTV and 3D-TV place increasingly high requirements on display technology to produce defect-free, large LCD displays. In the layer stack of an LCD panel the polarizer films play a key roll, as they determine the brightness and contrast of the display.

EasyInspect for polarizing film inspection is used for local defect detection, e.g. in:

Semi-finished film inspection for:

• TAC scratch detection
• PVA defect detection
• Lamination defect detection
• PET bubble detection (with particle)
• PSA bubble detection

Finished film inspection prior to marking and cutting:

• Halley bear detection
• PSA detection (with foreign particle)
• Lamination defect detection
• Particles on PET detection

All production steps:

• Repeated roller defect detection
• Roller dirt detection