Core Insights - China Telecom and Samsung Electronics launched the new high-end foldable smartphone, the Samsung W26, featuring upgraded Snapdragon 8 Gen 2 platform and satellite communication capabilities [1] - The foldable smartphone market in China is rapidly growing, with a need for innovation across hardware, software, and materials to transition from niche to mainstream [1] - The global foldable smartphone market is expected to see significant growth, with a forecasted shipment of 15.2 million units in 2025 and a 51% increase in 2026 [3] Industry Trends - The foldable smartphone market is currently in an early growth stage, primarily targeting high-end segments due to cost constraints [3] - The hinge technology has become a critical barrier to success in the foldable smartphone market, with increasing demand expected to drive the hinge industry forward [3][4] - The global market value for foldable smartphone hinges is projected to reach $1.2 billion by 2025, driven by the anticipated release of foldable products from major brands like Apple [4] Company Developments - Jiangsu Jingyan Technology is enhancing its hinge solutions through a dual-driven approach, focusing on lightweight and durable components to improve the reliability of foldable smartphones [4] - The company emphasizes the potential market growth for foldable smartphones as software ecosystems mature and innovative applications are explored [4] - Despite progress, the domestic hinge industry faces challenges in high-end technology and manufacturing capabilities, necessitating further innovation to close the gap with international standards [5]

Core Viewpoint - The article discusses the evolution and significance of hinge technology in foldable smartphones, highlighting the different types of hinges, their advantages and disadvantages, and the impact of material innovations on performance and cost [2][5][6]. Industry Perspective - Foldable hinge technology has undergone multiple iterations since the first commercial foldable phone was launched in 2019, leading to various technical routes and design philosophies [2]. - The main types of hinge technology include U-shaped hinges, waterdrop hinges, and other types, each with unique characteristics affecting crease control, thickness, cost, and durability [2]. U-Shaped Hinge - The U-shaped hinge, exemplified by the Samsung Galaxy Fold series, is a simpler and cost-effective design but suffers from significant drawbacks such as visible creases and potential screen damage over time [3]. - This hinge design has been criticized for allowing dust ingress and causing aesthetic issues due to gaps when closed [3]. Waterdrop Hinge - The waterdrop hinge, commonly used by domestic manufacturers like OPPO and Huawei, allows for a larger bending radius, reducing screen creases and providing a seamless closure [4]. - While offering advantages such as shallower creases and improved user experience, the complexity of the waterdrop hinge increases production costs and device thickness [4]. Evolution of Hinge Technology - The evolution of hinge technology reflects the transition of foldable smartphones from being merely functional to providing a better user experience, with advancements in materials and structural design [5]. - The latest innovation is Huawei's "Tiangong Hinge System," which supports both inward and outward folding, marking a new stage in hinge technology development [5]. Material Innovations - The performance of foldable hinges is closely tied to material selection, with advancements from traditional stainless steel to revolutionary liquid metal materials enhancing strength and fatigue resistance [6]. - Metal Injection Molding (MIM) is the mainstream choice for hinge manufacturing, while liquid metal offers superior properties, making it ideal for components requiring repeated folding [6]. Market Dynamics - The global foldable hinge market is projected to exceed $900 million in 2024, with a growth rate of nearly 5% [7]. - The introduction of tri-fold smartphones increases the number of required hinges, suggesting further market expansion [7]. - The market is characterized by high technical barriers, dense patent layouts, and a trend towards consolidation among leading companies [7]. Regional Distribution - Hinge manufacturers are primarily located in China and South Korea, with the U.S. excelling in design but less involved in manufacturing [8]. - Chinese companies are increasingly competitive across the entire supply chain, from materials to design and manufacturing [8]. Cost Structure - Hinges represent a significant incremental cost in foldable smartphones, with individual costs ranging from 800 to 1200 yuan, influenced by material choices and manufacturing complexity [8]. - Reducing hinge costs is crucial for the broader adoption of foldable smartphones, with potential improvements through material substitution and process enhancements [8]. Challenges in the Industry - The industry faces challenges such as reliance on foreign high-end materials and increasing competition, necessitating ongoing R&D investment [9]. - However, advancements in MIM technology and liquid metal by Chinese firms are enhancing the self-sufficiency of the supply chain [9]. Market Forecast - The global foldable hinge module market is expected to reach $1.82 billion by 2031, with a compound annual growth rate (CAGR) of 6.8% [10].