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Tag: tianma lcd screen

  • Producing Process of Tianma LCD Screen Assembly

    Producing Process of Tianma LCD Screen Assembly

    producing process tianma lcd screen assembly of

    Nowadays, with more and more Tianma-made iPhone LCD screen assembly springing up in the market, comparison reports on OEM and China-made are also overwhelming the repair market. The truth is that they do differ from each other, but Tianma-made iPhone LCD screen assembly can also be a good replacement for iPhone OEM screen and Samsung S7 edge glass replacement.Interested in the producing process of high-quality Tianma-made iPhone LCD screen assembly? REWA unveils the industrial secret for you.

    In-depth study of engineers contributes to the development of compatible LCD panel driver and further more the manufacture scheme. According to the scheme, Panel factories (TM/BOE/AUO/IVO etc.) will then arrange production and marketing of LCM to the laminating factories. This blog covers the laminating and assembling procedure of TM LCD screen assembly just after the LCM status.

    Workshop Introduction

    The producing process of Tianma-made iPhone LCD screen assembly is completed with the cooperation of different workshops like IPQC Workshop, Assembling Workshop and Laminating Clean Room etc.. Accompanied with respective yet consecutive procedures like IPQC, touch screen laminating, the bubble removing, FPC bonding and bezel assembling etc..

    producing process tianma lcd screen assembly

    IPQC

    Run display test on LCD modules to avoid quality defects like screen lines and flickering.

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    Run cosmetic inspection on touch screen assemblies to avoid quality defects like scratch and dust.

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    After that, finish OCA laminating process.

    Auto Laminating

    Auto LCD Screen Laminating Machine

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    Put touch screen assemblies and LCD modules on corresponding windows respectively. Optical aligning goes first, then the Laminating platform for laminating process.

    All laminated LCD assemblies are transferred and then placed on the dedicated trays.

    Bubble Removing

    Put all LCD assembly loaded trays into the bubble removing the machine and place the trays crossly for best performance. Set relative parameter and then activate the machine.

    Once bubble removing process finished, take out the trays.

    FPC Bonding

    The First thing during this process is to attach protective films to the LCD assemblies to avoid damage during the processing. Then attach protective gum paper, ACF glue and complete heat curing.

    Finish flex cable aligning under the light and complete FOF bonding with the Pulse Flex Cable Bonding Machine.

    Once finished, move on to backlight flex cable soldering and once all has been done, run touch function test.

    Bezel Preparation

    Run cosmetic inspection of the bezel first. Then clean the sticking-joint with the Plasma cleaning machine for better adhering and complete fluid dispensing process with the Fluid Dispensing machine.

    Bezel Assembling

    Assemble the processed LCD displays with bezels by aligning strictly. Then place all assembled LCD displays into the dedicated laminating mold and complete bezel assembling with the Bezel Assemble Machine.

    Clean glue residue after the bezel assembling process.

    Components Assembling & Finish-up

    Attach new protective film to the LCD assembly first. Then adhere the camera support and other components to the LCD assembly.

    Run the final test of 3D touch, touch function and display to ensure the quality.

    Attach protective gum paper, seal QC PASS stamp and clean the screen.

  • Tianma LCD Screen for iPhone 6s – All You Need To Know

    Tianma LCD Screen for iPhone 6s – All You Need To Know

    tianma lcd screen iphone 6s all you need know for to

    As more and more  China-made iPhone LCD screens  flooded the market as the time went on, you may be confused by their different kinds/brands or qualities. For those China made LCD screens , most of you may be familiar with Tianma, Longteng, Jingdongfang. For Longteng/LT, its official name is IVO, and Jingdongfang/JDF for BOE. The rest are Shenchao, Innolux, AUO(Taiwan Brand), JDB etc. Tianma Made iPhone screens are gaining more and more attention and reputations, and we are willing to recommend this kind of LCDs to customers of different demands. Consequently, it’s necessary for you to have a good knowledge of them when you happen to have an intention of or be in the business of cell phone spare parts . Let’s take TM(Tianma) iPhone 6s screen for example and have a deep analysis on it from a professional point of view in the aspects of Appearance , Structure and Function .

    Appearance

    There are some slight differences between TM iPhone 6s LCD and OEM one as regards the Weight, Thickness and Home Button Size. By measuring up with micrometer, we can easily tell that TM made screen is thicker than the OEM one for a plastic layer has been added on the glass lens.

    tianma lcd screen iphone 6s all you need know

    Flex Cable: different flex textures on LCD flex cable

    tianma lcd screen iphone 6s all you need know 2

    IC Module: IC module of OEM NEW screen is totally covered, while the TM screen is partly covered for its reassembled IC

    tianma lcd screen iphone 6s all you need know 3

    Installation: At the sample test, 30% of TM screens can not fit perfectly for its higher bezel, but it does not affect the normal use

    tianma lcd screen iphone 6s all you need know 4

    Home Button Hole: As regards button hole alignment, there are no differences between the OEM and TM screen

    tianma lcd screen iphone 6s all you need know 5

    Structure: Compared with the In-cell structure of OEM iPhone 6s screen, TM screen applies G+F technology in the process of production as the below diagram shows thus making its overall thickness greater than the OEM one.

    tianma lcd screen iphone 6s all you need know 6

    Function

    Hydrophobicity:

    OEM screen has high hydrophobicity for its special materials on the surface, while TM screen has relatively poor hydrophobicity

    tianma lcd screen iphone 6s all you need know 7

    Display:

    White, pure gray and black screen were tested in this procedure Backlight Leakage:

    slight backlight leakage on grey and black screen Mura: mura on gray screen, but invisible in the genral use Color difference:

    compared with the OEM, TM screen is colder and green toned

    tianma lcd screen iphone 6s all you need know 8

    3D Touch:

    3D touch performs well

    Touch :

    Touch functions well

    Aging Test:

    Playing video for 72 hours, there are no differences between TM and OEM screen

    NOTICE: By analyzing, TM iPhone 6s LCD functions well, but still has some small differences like color, hydrophobicity etc. which do not affect the normal use. It is relatively stable at present from the above performances. Considering the competitive price of China Made screen, sample orders are recommended to test if it can meet your needs.

    Until now, I’m afraid you have made your own decision. If you still have any other questions or are looking for iPhone LCD screens, Glass Glens + Frame or Glass Lens with CMG Frame, please feel free to contact us via service@rewa.tech or visit the website at shop.rewa.tech .