A South Korean research team has developed what it called the world’s first display technology that can switch freely between 2D and 3D without glasses by attaching a metalens to a smartphone screen. The Ministry of Science and ICT said the technology uses a 1.2 mm-thin metalens that changes light refraction with applied voltage, showing 2D without distortion and 3D with a 100-degree viewing angle. The work was published in Nature on April 23.

POSCO Future M said it has moved to strengthen governance by creating new board-level committees, after securing anode material orders and diversifying its business amid external uncertainty. The company reappointed CEO Eom Gi-cheon at its annual shareholders\' meeting and outlined plans for proactive investment and broader customer and product portfolios. It also detailed anode material supply contracts, investments in Vietnam and Saemangeum, and moves into solid-state batteries and LFP cathode materials.