iPhone LCD Screen Sampling Test

Blake Sep 21, 2017

To ensure the highest quality of iPhone screens, REWA Technology operates with an integrated quality control system, applying for professional quality assurance from purchase to delivery, and strict testing procedures. REWA iPhone LCD Screen Sampling Test, composed of the following 5 strict testing procedures, ensures qualified suppliers and high-quality products.



iPhone LCD Screen Sampling Test


REWA LAB iPhone LCD Screen Sampling Test


Cosmetic Inspection

Check whether the surface of glass lens damaged or off paint, etc.


Cosmetic Inspection


Check whether the front bezel debonding, damaged, screw hole blocked, etc.


screw hole blocked


Check whether the flex cable is broken or damaged.


Check whether


Check backlight adhesion normal or not.


Check backlight adhesion normal


Check hydrophobic effect with water, alcohol, and N-hexane.



Check hydrophobic


Function & Display

Test touch function by pulling up and down, switching page, moving icons.


Test touch function


Test 3D Touch function and sensitivity.


Test 3D Touch function


Check pure color screen normal or not.


Check pure color screen normal


Check whether the screen turns black under polarizer.


Check whether the screen


Test Color Coordinates & Brightness with Color Analyzer CA310.


Test Color Coordinates


Structure Test

Measure thickness, width and length.


Measure thickness


Check whether LCD metal plate well matched or screw hole well aligned.


LCD metal plate


Check screen fitness with iPhone housing after installation.


Check screen fitness


Check whether function normal or not after installation.


whether function normal


Check whether light leaked or backlight conflicted with LCD


backlight conflicted with LCD


Run Touch ID function test.


Run Touch ID


Aging Test

Run Dynamic test (condition: +45℃; playing video for 2Hrs ), check whether display normal or not. After that, run function test again.


Aging Test


Run Static Cycle test (condition: -20℃/2Hrs, +55℃55%RH/2Hrs, +55℃/4Hrs), check whether display normal or not.

Once finished, check backlight adhesion and run another round of function test.


Run Static Cycle test


Vibration Test

Packaging the LCD assembly with a blister box. Then run Electromagnetic Vibration Test (Amplitude: 2mm, Frequency: 50HZ, Time:1H).


Packaging the LCD assembly


Once finished, check backlight adhesion and run another round of function test.



check backlight adhesion


Test Report

Those passed all tests would be certified by the test report issued by REWA LAB.




You can check our iPhone X OLED Screen Total Teardown Analysis video.





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