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Samsung offers a closer look at how the brushes help keep dust out of the hinge

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Ricky 13 May 2020

Samsung Android Misc

On early Wednesday, Samsung released a piece that looks deeper into the Galaxy Z Flip’s Hideaway Hinge. This is the second of two parts (so far) where Samsung explains how bristles are used in the hinge to keep foreign debris out of the hinge assembly. Between the hinge’s bumper and the two halves of the phone is a very narrow gap of about 1mm.

The Samsung Galaxy Fold saw drastic failure to the display whenever dust or debris managed to lodge itself into the hinge, which is why Samsung put those plastic stoppers at the two ends along the folding part for the redesigned Fold. This alone, however, was not enough to keep dust out.

In designing the Galaxy Z flip, engineers came up with several prototypes to no avail. However, one engineer studied the way fibers were used in vacuum cleaners and observed the way they flexed and decided it could be applied in an effective way for the Galaxy Z Flip. We know that Samsung did use these new bristles in the Z Flip’s hinge and now Samsung offers a detailed diagram of how that is.

Samsung offers a closer look at how the brushes help keep dust out of the hinge

Samsung didn’t specifically mention what material these bristles are, but they did compare them to the nylon ones found in a vacuum cleaner since they can bend and flex while still keeping their original shape. These bristles fill the gap that would otherwise allow dust and debris to enter the hinge assembly and it “sweeps” every time you close and re-open the Z Flip’s display.

The Samsung Galaxy Z Flip is said to be able to endure 200,000 flip cycles, which give enough chance for debris to get inside. With the sweeping bristles, there’s less change of that happening but for the love of Pete, don’t take this thing to the beach.

Source

Related articles
  • Samsung Galaxy Z Flip review Samsung Galaxy Z Flip review
  • Check out our hands-on video review of the redesigned Galaxy Fold Check out our hands-on video review of the redesigned Galaxy Fold
  • Samsung Galaxy Note20's display to be capped at 60Hz refresh rate, only Note20+ gets 120Hz Samsung Galaxy Note20's display to be capped at 60Hz refresh rate, only Note20+ gets 120Hz
  • Samsung Galaxy Z Flip sales go up in March as the Galaxy S20 flagships struggle Samsung Galaxy Z Flip sales go up in March as the Galaxy S20 flagships struggle

Reader comments

D
  • Duck of death
  • M9V
  • 14 May 2020

You're making the assumption that typical glass candybars are unbreakable. They're not. My Note 9 is full of cracks and display scratches. This is both due to the display area being so large and because it's always exposed to damage. Whether it's whi...

  • Reply
N
  • Nick Tagataka
  • gRy
  • 14 May 2020

Sacrifices might worth it for some, but not for others. For example, regardless of whether you go with infold or outfold design, you're either giving up on using the device as a phone/phablet or display durability, which you wouldn't have to do if yo...

  • Reply
P
  • PepperPot
  • qD0
  • 14 May 2020

And Zack also said the screen was not made of glass. He was wrong. In the last few months I've heard complaints about everything from green screens on the S20 to disappointment in the exynos chips in comparison to the snapdragon. I've not heard anyt...

  • Reply
  • Read all comments
  • Post your comment
Total reader comments: 10

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