ANN/THE KOREA HERALD – Samsung Display announced on Monday its foldable smartphone panel has successfully cleared United States (US) military’s rigorous material durability assessment, demonstrating its resilience in challenging operational and combat environments.
The display manufacturer revealed that its seven-inch foldable panel, featured in the latest foldable smartphones, has met the MIL-STD 810G test criteria, established by the US Department of Defense as a military standard.
Originally designed for certifying equipment and materials for military use, this standard has evolved and become applicable to commercial standards as well.
“This military spec certification confirms Samsung Display’s technological advantage in the foldable display market, which has become the next-generation form factor,” said Cho Yong-seok under marketing division for small and medium businesses at Samsung Display. “We look forward to seeing foldable panels utilised in a wider variety of devices and environments, (breaking) the prejudice that foldables are not durable.”
To verify the durability of its seven-inch foldable panels, Samsung Display commissioned UL Solutions, a safety certification agency, to conduct tests on four criteria of MIL-STD 810G, including temperature, shock, and other factors that can be encountered in everyday and outdoor activities.
The foldable panels were put in an environment where the temperature was lowered to minus 10 degrees Celsius (oC), and water was sprayed onto the surface of the panel to create a layer of ice six millimetres thick. The panel was left in a frozen state for four hours and still operated normally, the company said.
The panel also withstood temperatures of minus 32oC and 63oC and endured radical temperature fluctuations over a 12-hour period.
The foldable panels also survived a harsh shock test. The panels were dropped from a height of 1.22 metres – the height at which people usually hold their smartphones – 26 times, all in different directions.
