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Reasons & Solutions For iPhone Bezel Coming Off
 
           
 
 
 
During the IP screen refurbishment processes, there are 3 different solutions to assemble glass and frame
to LCD. Currently the most frequently reported problem is frame coming-off. Regarding this problem,
REWA has fully tested all these 3 solutions and compared carefully, finally drawn an conclusion on which
solution can be the best.
 
 
PROCESSES OF 3 SOLUTIONS
  Appearance
Inspecting
   
     
 
  Operating
Procedures
   
Step 1 OCA Laminating Step 2 Glass Laminating
      Step 3 Bezel Assembling   Step 4 Bubble Removing  
     
 
  Heating Test    
 
COMPARISON
  COMPARISON APPEARANCE PROCEDURES AIR BUBBLE BEZEL FRAME COST REWORK  
  Solution 1
Glass lens with bezel&OCA
OCA glue
overflow
2 steps Air bubbles Perfect USD 6.15 No  
  Solution 2
Glass lens with bezel (No OCA)
Perfect 3 steps Perfect Perfect USD 5.55 No  
  Solution 3
Glass + Bezel with glue
Perfect 4 steps Perfect Come off USD 6.24 Yes  
 
   Tips  
    Currently there are 2 different techniques for framing: HMG (hot melt gluing) and CMG (cold melt gluing)  
    CMG: High and low temperature resistant; frame is glued stably but not reworkable.  
    HMG: Easy to rework but when exposed in high temperature, the frame is easy to come off.  
    * Glass with bezels are using the CMG, while bezel with glue is using HMG.  
 
 
By comparison and testing, we can draw a conclusion that both two kinds of glass lens with bezels can
minimize the occurrence of detached bezel. But glass lens with bezel (no OCA) which has no air
bubbles after laminating is the most cost-effective.
 
 
       
 
$6.15   Shop Now   $4.85   Shop Now   $2.77   Shop Now   $2.77   Shop Now   $0.70   Shop Now
 

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