Apple iPhone 5 5s 5c Polarizing Film Sheet For LCD Screen Refurbishment, usually required when re-working an iPhone screen - comes with a protective film on both sides.
Warranty: N/A / consumable
Parts Origin - OEM
The term OEM stands for 'Original Equipment Manufacturer', the exact meaning differs in several industries.
To us, OEM means that the part is the same part used within your device, using the same materials and specifications.
We use the term OEM to cover many parts from refurbished, used and new components, the exact condition will be stated in the items description.
In some cases when the part supplied is made up to several components (for example an LCD assembly) the part may have been assembled by a 3rd party vendor using OEM parts meaning that consumable may differ (such as adhesive used)
Although strict testing procedures are put in place to ensure the quality of the part these testing practices and procedures may differ from the checks manufacturers use.
Any hardware supplied as OEM will not have any quality loss or loss of features and covered under our extensive returns policy.
As in many cases we dont obtain directly from the devices manufacturer, nor in some cases are we affiliated with device manufacturer in any way and they are not involved in the testing or sales process of the component we sell.
I bought these for quantum physics experiments, but found they had some rather interesting properties. They work differently in one direction (front-to-back as opposed to back-to-front) which makes me wonder if they consist of a quarter wave plate plus a linear polarizer (also known as a circular polarizer). Basically you can only block (nearly) all light by holding two of them at 90 degrees to each other but also face to face. If you turn one of them round, you lose the effect. This would be consistent with circular polarizers-- they only work if you have the linear polarizer components next to each other with the waveplates on the outside. But I don't understand this because I thought the way LCD screens work was with linear polarizers. Maybe these are meant for an IPS screen or something (where I think they might use circular polarizers). The screen on my actual phone is an IPS I think and the light coming out of it does not appear to be linearly polarized as it is from my TV and computer monitor which are both more conventional LCD displays. I then found they had a protective film stuck to them which I peeled off. Bad idea as they're actually sticky underneath that and it's hard to get the film back on without trapping air bubbles.
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