iPad Touch Screen Digitizer Testing Procedures

Blake Aug 18, 2016


Do you know what kind of replacement touch screen digitizer for iPad is qualified one and what are you supposed to do to test it then? Here is the procedure our quality control engineers process with the parts quality inspection of which standard is in line with the industry standard.


Appearance Testing




No scratches on the touch panel




No dust spots or dots on the touchscreen




No breakage on the digitizer




No paint loss on the touchscreen




No chromatic aberration compared with OEM one




Grid lines inspection in the normal range




Home button hole alignment - in a proper position




Home button hole measuring - diameter around 10mm


Three Proofings Testing




The touch screen digitizer should possess the properties of three proofings - waterproof, alcohol proof, n-hexane proof.


Light Transmittance Testing




We usually do visible light (of which electromagnetic wave wavelength around 550nm) transmittance test to the camera hole and functional area of a touch panel. The normal range for Camera Hole Testing Value should be greater than 90; While Functional Area should be greater than 88.


Bending Strength Testing




Bend the whole screen and four corners slightly to the extent that is within the proper range, while OEM one is more flexible.


Touch Function Testing




y moving the app icon in all directions including swiping from the edge of the screen to test if touch functionality works well.

In REWA, everything comes after quality!

Want to order our products? Please contact us: PRE-SALES Skype: rewatech Email: service@rewa.tech AFTER-SALES Skype: support-rewatech Email: support@rewatechnology.com And you can also check our repair guides: REWA Screen Repair:

Fix cracked iPhone 7 screen ,

Samsung Galaxy S7 edge glass replacement ,

iPhone 7 touch screen not working ,

iPad Air Touch Screen Partially Unresponsive Repair ,

iPhone X Screen Refurbishing – Glass Only Repair ,

iPhone 8 Broken LCD Screen Refurbishing,

iPhone 6 replacement screen ;


REWA Motherboard Repair:

iPhone 6 won’t turn on ,

How to fix water damaged iPhone 6 ,

MacBook air memory upgrade .

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REWA is a world leading electronics repair business solutions provider who was founded in 2008 in HongKong. We are committed to delivering one-stop services covering Sourcing Solution, Technical Support Solution as well as Recycle & Resell Solution.

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