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LCD Refurbish All things related to LCD / Screen refurbish and repair |
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01-28-2016, 00:05 | #181 (permalink) | |
Junior Member Join Date: May 2011
Posts: 20
Member: 1570234 Status: Offline Thanks Meter: 1 | Quote:
Sent from my SM-T335 using Tapatalk | |
01-31-2016, 13:15 | #182 (permalink) |
Insane Poster Join Date: May 2007
Posts: 60
Member: 504376 Status: Offline Thanks Meter: 5 | Excuse my English, I am using a translator. I'm from Brazil and now started a company to refurbish the display`s. Like all had problems with the machine bubbles and the only solution was testing behind test. And get to 100%. The tip I can tell you is the setting machine pressure. They come with regulated pressure sea level of China. So you have to adjust the pressure and temperature. So to get to 100% perfection. My I regulated the machine to sea level in my town, I moved 10 minutes to 15 minutes time and raised the temperature to 35 degrees. Use hollow Mitsubishi, and I do not have any problem with bubbles. I hope to help with these tips. |
The Following 2 Users Say Thank You to gucesar1 For This Useful Post: |
01-31-2016, 16:48 | #183 (permalink) |
Junior Member Join Date: Jan 2016
Posts: 1
Member: 2524569 Status: Offline Sonork: Hallokok Thanks Meter: 0 | Hello ...iam from germany and i have also the K.O 5 in 1 Machine? I have also thebproblem that bubbles com back after laminating and then autovlave. I tried many different settings but still i have bubbles. I try it for 6 months and i wont give up. Can you help me please? Can you add me to the whatspp group too? +49176÷_€=_€€_04 Thank you Last edited by THE CLASH; 01-31-2016 at 17:40. |
02-13-2016, 04:20 | #185 (permalink) |
Junior Member Join Date: Aug 2015
Posts: 2
Member: 2451314 Status: Offline Thanks Meter: 0 | I was told to reduce the time in autoclave. The longer it stays under pressure in the autoclave, the more bubbles you will have. I started using 30 degrees, 15 minutes, 4 to 5 MPA , 2 minutes of UV light and experienced a significant reduction in bubbles. At those settings, I still get bubbles but not as many as before. I am going to reduce the time down to 10 minutes and possibly increase the pressure to a max of 6 MPA. The OCA I am using is the KN6 OCA from Kawin Optical that finishes curing under UV light after the autoclave process. Apparently more time in autoclave causes problems. |
02-13-2016, 09:50 | #186 (permalink) |
Junior Member Join Date: Nov 2015
Posts: 3
Member: 2489553 Status: Offline Thanks Meter: 0 | hi guys. the main problem is low quality OCA. we need to use very good quality OCA. then problems should be minimised. it is same for other parts. glass, frame, light. all should be good quality. i have been buying parts from china myself. i see very big price differency. some part is 2, diffirent qualyty is 10. |
03-14-2016, 07:20 | #187 (permalink) |
Junior Member Join Date: Mar 2016
Posts: 5
Member: 2545607 Status: Offline Thanks Meter: 0 | Hi All, I have the AK 2 in 1 OCA laminating machine. When I run the machine it is set for 10 mins. The pressure in the chamber is set for 90 PSI. After a few mins to pressure goes down to 60-70 psi and then down to 40 psi after about 5 mins. I talked with the manifactuior and they said this is normal. I find that hard to believe, i figure the machine should hold its constant pressure for the whole 10 mins. Has anyone else had this issue at all? if you have a different machine what pressure do you run it at and does it hold that pressure constant? thanks |
03-14-2016, 22:16 | #188 (permalink) | |
Junior Member Join Date: Feb 2014
Posts: 1
Member: 2129087 Status: Offline Thanks Meter: 0 | Quote:
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03-26-2016, 12:37 | #189 (permalink) | |
Junior Member Join Date: Jun 2011
Posts: 1
Member: 1599738 Status: Offline Thanks Meter: 0 | Quote:
The bubbles occur more frequently if you do not wipe the glass before installation. Brushing should be carefully | |
04-04-2016, 16:25 | #190 (permalink) |
Junior Member Join Date: Feb 2016
Posts: 1
Member: 2531634 Status: Offline Thanks Meter: 0 | Hi. What is the best glue remover (debonder) to remove the glue under the polarize? Goof off? Alcohol isopropyl or others? What is the safer way to avoid damage the lcd and the lcd line? |
07-05-2016, 17:52 | #191 (permalink) |
No Life Poster Join Date: Jun 2006 Location: Gela
Posts: 841
Member: 293758 Status: Offline Thanks Meter: 39 | I have this machine https://www.youtube.com/watch?v=_FUqpNf6Wvc Later press process and remove bubbles 30 minutes, i see many bubbles!!! Please help me!!! I try same set from this video but not solution. I try new glass with oca prepare. I try clean and remove polarized. Please wait your answer thanks. |
07-25-2016, 16:49 | #194 (permalink) |
Major Poster Join Date: Mar 2014
Posts: 40
Member: 2139614 Status: Offline Thanks Meter: 2 | Hello guys Have you tried replacing the glass in iPhone 6s Plus? I got some problems , here is the effect: I am using laminator GM968 , temp. 35 degrees for 5 minutes. Next I use autoclave (model GM838) for 9 minutes, 40 degrees.. Do you guys also got problems with iphone 6S Plus? |
08-07-2016, 10:03 | #195 (permalink) |
Junior Member Join Date: Aug 2016
Posts: 2
Member: 2608532 Status: Offline Thanks Meter: 0 | Hi guys, first, sorry for my bad English. I am new in refurbish business and my experience are not very great, but i know some tricks. I read the whole thread, and I found some mistakes, that i make. If i remove these mistakes, i still did not get better results - screens have still bubbles. I have only homemade separator and homemade bubble remover and clean room. Separator and bubble remover are the only machines, which i use. There is my procedure: 1-separate glass from lcd 2-remove polarizer 3-remove glue with WD40, after then remove WD40 with 99% alcohol and toilet paper 4-remove all dust from lcd in a clean room 5-laminate polarizer with hand roller (There is first mistake. If i laminate polarizer, i have some bubbles between polarizer and lcd. When I put something under the LCD, i laminate polarizer without bubbles, but it did not help) 6-laminate Mitsubishi OCA foil with hand roller. (There is the same mistake. If i laminate oca foil, i have some bubbles between polarizer and oca. When I put something under the LCD, i laminate oca without bubbles, but it did not help. I probe insert OCA before laminating for 15 mins in the refrigerator, did not help) 7-put lcd with foils to mount and apply glass. I am using only new glass with protective foils. 8-i press with my finger in the middle (There is second mistake. I pushed with my finger most of the air out. I also tried no pushed the air out with my fingers, but i got worse results.) 9-now i use bubble remover. I have homemade bubble remover. When I watched videos and pictures, people are using 50 degrees temp. I have no idea, what temp it is. It is temp pressured air? Or it is inside the pressure chamber? Or outside the pressure chamber? I have my temp sensor on outside the pressure chamber. I use 50-60 degree, pressure 0,5-1Mpa and time 20-60mins. When i use lower settings, that means 50 degree, 0,7Mpa and 20 mins my screens have big areas with air bubbles, it is the same problem, that post jackvonthor. If i use higher settings, that means 60 degree, 1Mpa and 50-60 mins my screens look very great, but after an hour, two, i can see small air bubbles on the sides. Can anybody help me? Where is the problem? |
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