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ITAre you bothered by the insufficient supply of OEM New iPad Touch Screen Assembly?
REWA here offers you high-quality AAA grade replacement.
Integrated supply chain, fully tested iPhone 6S glass lens and strict procedures for producing process, all contribute to the outstanding quality and stable supply of our products.
Glass Sampling
All REWA glass lens has to go through tough tests like bending test, drop test, hydrophobic effect test, etc. to ensure the outstanding quality.
iPad Touch Screen Assembly Sample Groups
During glass sampling process, there are three sample groups for comparison.
Group (A)——REWA AAA Grade
Group (B)——OEM New
Group (C)——Prevail on the Market
1. Bending Test
Run bending test on iPad Touch Screen Assembly groups (A), (B) and (C) respectively.
Max Bending Force Value:
Group (A)——72.86kgf
Group (B)——78.16kgf
Group (C)——30.76kgf
Bending Test Result：
Group (A)——Good
Group (B)——Excellent
Group (C)——Poor
2. Drop Test
Run drop test on iPad Touch Screen Assembly groups (A), (B) and (C) respectively. Each sample goes through three times continuously.
Max Drop Strength Value:
Group (A)——90cm/90g
Group (B)——90cm/90g
Group (C)——80cm/65g
Drop Test Result：
Group (A)——Excellent
Group (B)——Excellent
Group (C)——Poor
3. Dimension Measurement
Thickness parameters of iPad Touch Screen Assembly groups (A), (B) and (C) are as following:
Group (A)——0.57mm
Group (B)——0.56mm
Group (C)——0.58mm
4. Hydrophobic Effect Comparison
Sample Water Alcohol N-hexane (A) good ordinary ordinary (B) excellent excellent excellent (C) ordinary poor poor
5. Light Transmittance Test
Before the test, tear off the protective film and run cosmetic inspection of iPad Touch Screen Assembly groups (A), (B) and (C).
After that, run Light Transmittance Test under dimly lit environment.
Visible light transmittance value of Camera hole (550nm):
Group (A)——95%
Group (B)——95%
Group (C)——92%
Visible light transmittance value of the touch panel Functional area (550nm):
Group (A)——92%
Group (B)——93%
Group (C)——92%
6. Home Button Alignment
Install home button for a look——all glass lens fit perfectly well.
Conclusion
Group (A) runs with a good performance during all those tests.
REWA AAA Grade proves to be qualified for the following assembly producing process.
Digitizer Assembling
1. Touch Panel
Adhere the ACF adhesive to the corresponding position of the touch panel.
Then complete bonding the FPC to the corresponding positions of the touch panel respectively.
After bonding, connect the touch panel to the touch system for function test and run sampling inspection of both defective and non-defective samples of the touch panel with the electron microscope to analyze the bonding effect.
Once finished, deliver the completed touch panel to the next process via the transfer window.
2. Roller Dedusting
Use the roller to finish preliminary cleaning of the touch panel.
3. Glass Cleaning
In the high grade purifying environment, clean each glass lens with the cleaner.
4. Glass Laminating
In the high grade purifying environment, run re-clean and re-inspection process of the glass lens.
After that, laminate the touch panel with the glass lens with the help of the semi-automatic laminating machine.
5. Bubble Removing
Put the touch screen assembly on the tray and place it into the bubble removing machine for 45 minutes. Set the pressure value as 0.6MPa and activate the bubble removing process.
Once finished, take out the touch screen assembly.
6. Protective Film Attaching
Attach exclusive protective film to the front and back of the touch screen assembly for quality guarantee.
7. Semi-finished product warehouse in
Once finished, deliver the semi-finished products to the warehouse.
For more details on iPad touch screen assembly producing process,
please go to REWA YouTube channel.
