[تاريخ Galaxy ①] The evolution of the Galaxy Z Fold sequence: a brand new engineering achievement in folding telephone design

Not like smartphones with a inflexible rectangular design, foldable telephones encompass a central hinge and two folding sides. The hinge works as an axis to open and shut the telephone, because it connects two screens that might be one display screen. Over time, Samsung has developed distinctive and superior expertise within the hinge mechanism of the Galaxy Z Fold sequence, making a revolutionary hinge design in every new model. Samsung has additionally continued to cut back the thickness of the Galaxy Z Fold sequence in order that the telephone will be simply carried anytime, wherever.

The Samsung Press Room highlighted the exceptional enchancment within the elegant aspect profile of the Galaxy Z Fold sequence, in addition to the distinctive hinged design that’s now thinner, extra secure and smaller than ever.

[2019] Galaxy Fold
Innovation in foldable telephones: folding and unfolding
Folded thickness: 15.7-17.1 mm Open thickness: 6.9-7.6 mm Weight: 276 g

As life proceed to diversify amongst customers, their wants have multiplied and adjusted over time. Subsequently, Samsung all the time desires to offer superior technical improvements yearly to fulfill these speedy adjustments. The launch of the Galaxy Fold telephone in 2019 was a defining second, as Samsung showcased an progressive design that offered a large, pure display screen expertise when opened, and a compact transportable expertise when folded. Subsequently, the “fold and unfold” function appeared as a brand new and distinctive function within the smartphone world. Samsung needed to use a particular hinge expertise to make sure that this function could be easy and straightforward for the person.

The fold-in hinge was not solely a well-known and intuitive function, but in addition offered stable display screen safety. Due to the trendy design, the telephone will be opened easily like a ebook, and it stays flat and light-weight when folded, and the size appropriate for the scale of the palm of the hand contribute to offering most consolation throughout use. In reality, Samsung succeeded in reaching a most folding thickness of not more than 17.1 mm within the first Galaxy Fold telephone, paving the way in which for transportable good units.

[2020] Galaxy Z Fold 2
Age of Flex Mode: hidden hinges and sweep expertise
Folded thickness: 13.8-16.8 mm Open thickness: 6.0-6.9 mm Weight: 282 g

In 2020, Samsung launched the Galaxy Z Fold2 as a complicated successor to the unique folding gadget, the Galaxy Fold. This new telephone has taken folding design to a brand new degree, because of its progressive options. One of the vital outstanding of those options was the “Hideaway Hinge”, which is a complicated hinge that shortly connects the physique of the smartphone and helps the folding and unfolding course of in a sustainable manner . This distinctive design permits customers to bend the telephone at totally different angles, making it simpler to take selfies and make video calls in Flex Mode.

This hinge encompasses a flat floor between its two elements, which helps to maintain the gadget open or closed stably, in addition to enabling Flex Mode. By growing the variety of CAM constructions and is derived, the hinge is ready to reliably assist wider folding and opening angles. This hidden hinge is effectively positioned on the Galaxy Z Fold2, permitting a slimmer design for the gadget, with a most thickness when folded of simply 16.8 mm.

As a result of fixed folding of the hinge when opening or closing the gadget, it was inevitable that there could be a niche between the face of the gadget and the hinge housing. To successfully bridge this hole, Samsung needed to develop a part that was sturdy and versatile with out growing bulk. Impressed by the vacuum cleaner brush, Samsung used finely minimize optical fibers to deal with this drawback, which it calls “Sweeper” expertise.
“Sweeper” expertise works to guard the telephone’s display screen from exterior mud and impurities which will enter via that hole, offering a smoother person expertise for the folding machine.

[2021] Galaxy Z Fold 3
The answer to the folding telephone’s greatest problem: water resistance
Folded thickness: 14.4-16.0 mm Open thickness: 6.4 mm Weight: 271 g

Though most smartphones in the present day are waterproof, the hinge that enables the display screen of foldable units to fold and fold will all the time be uncovered to exterior parts. If liquids similar to drinks or rainwater enter the gadget via this barrier, the gadget is susceptible to speedy failure.

The Galaxy Z Fold3 was the primary folding telephone that had efficient water safety, which is without doubt one of the greatest challenges that folding units have had up to now. Samsung utilized superior water resistance expertise in two essential areas – the outer a part of the display screen and the hinge itself. The outer a part of the display screen is surrounded by a rubber band that stops mud and liquids from coming into, whereas the metallic elements of the hinge are made from corrosion-resistant supplies and the coating with top quality lubricant. The tip connecting the 2 predominant panels on the hinge can be sealed with a CIPG handled silicone gasket and locked in place to forestall liquids from coming into. Lastly, versatile printed circuit board (FPCB) cables are used to guard delicate parts.

As well as, Armor Aluminum, a robust and sturdy materials, was used within the manufacturing of the Galaxy Z Fold3 to assist obtain a thinner and lighter body. This materials is characterised by its capability to withstand exterior shocks and drastically reduces the chance of deformations or scratches that folding units could expose.
“Aluminium Armor” has been utilized to the 2 ends which can be the outer half, in addition to the quilt across the hinge of the Galaxy Z Fold3. Many parts are additionally intently built-in throughout the hidden hinge to allow Flex Mode and guarantee easy opening and shutting. To assist these features, it was essential for the hinge housing to be made from very sturdy supplies.

As well as, “Sweeper” expertise was developed that closed the hole between the hinge and the physique of the folding gadget. After they diminished the scale of the gadget, the bristles of this expertise have been shortened to enhance the aesthetic look whereas sustaining the integrity of the hinge from mud and exterior particles. These improvements have allowed the Galaxy Z Fold3 to be solely 16.0 mm thick when folded.

[2022] Galaxy Z Fold 4
From rotary movement to linear movement: a thinner, lighter joint
Folded thickness: 14.2-15.8 mm Open thickness: 6.3 mm Weight: 263 g

The Galaxy Z Fold4 was launched in 2022, and noticed a big discount in weight and thickness, as the load of the gadget was 263 grams, about 20 grams lower than the Galaxy Z Fold2, which weighs 282 grams. The utmost thickness of the folding gadget was 15.8 mm, making it the thinnest within the sequence at the moment. Right here, Samsung continued to enhance its in style folding telephone with extra progressive developments, leading to a slim, easy-to-use and light-weight design.

The Galaxy Z Fold4 has been redesigned to be 21% lighter than the earlier mannequin, with a brand new hinge to accommodate the broader width and shorter size of the exterior show. Whereas the earlier folding mannequin within the sequence used interlocking gears to make sure that the display screen folds and extends evenly, Samsung has modified the motion of the hinge from rotary to serial within the Galaxy Z Fold4. This modification drastically diminished the load, thickness, and variety of parts, which improved the manufacturing course of and elevated the machine’s flexibility. By doing this, Samsung managed to construct the thinnest and lightest hinge on the time whereas sustaining the identical degree of sturdiness because the earlier mannequin.

[2023] Galaxy Z Fold 5
Versatile hinge: the key to a completely foldable telephone
Folded thickness: 13.4 mm Open thickness: 6.1 mm Weight: 253 g

In 2023, Samsung launched the Galaxy Z Fold5, which represents the following technology of folding smartphones. Transferring away from the normal hinge design, the corporate unveiled a brand new mechanism referred to as the Flex Hinge, marking a leap ahead within the subject of folding innovation. With improved flexibility and a wider vary of options, the versatile hinge permits the show to rotate throughout the hinge like a drop of water, utilizing 4 energetic columns and a double barrier construction that enables elements slide on. Because of this, the 2 screens fold evenly with out wrinkles or gaps.

This new folding design introduces the lightest and thinnest Galaxy Z Fold gadget but. The thickness of the gadget has decreased by greater than 2 mm in comparison with the earlier mannequin, for the reason that most thickness of the telephone “Galaxy Z Fold5” is about 13.4 mm when folded. The burden of the folding gadget has additionally been diminished to simply 253 grams – that’s, 10 grams lighter than the earlier mannequin, which makes it simpler to hold, extra secure when folded, and extra stunning in appears too.

Yearly, Samsung continues to enhance the Galaxy Z Fold sequence by benefiting from exact engineering and superior manufacturing processes. Each element is fastidiously thought of, from the inside fittings to the outside design. The repetition of the hinges and the thickness of the gadget – the principle options of folding units – have contributed considerably to the Galaxy Z Fold sequence. Samsung will proceed to construct on its wealthy legacy of progressive folding units, which can be sure that extra customers will profit from this expertise to attain larger comfort of their every day lives.
Uncover the following technology of Samsung improvements on the “Galaxy Unpacked” occasion that’s scheduled to happen in Paris on July 10.
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