The Evolution of Display Protection: How 2D, 2.5D & 3D Glass Covers Reshape Smart Devices

What is 2D, 2.5D, and 3D tempered glass?

1. The Genesis: 2D Glass Dominance Era

• 2010-2014: 2D glass covers with chamfered edges dominated smartphones

• 0.5-0.7mm thickness and 9H hardness became industry standards

• Limitations: Prone to chipping at sharp edges, incompatible with bezel-less designs

2. 2.5D Revolution: The Curve Innovation

• 2015 Breakthrough: Apple iPhone 6 popularized 2.5D technology

• Key advantages:

  • 0.3-0.5mm edge curvature for smoother touch experience

  • 30% reduced accidental screen cracking (Corning data)

Enhanced OEM/ODM customization for mid-range devices

3. 3D Glass: The Future Unfolds

• 2018-Present: Flagship adoption (Samsung Galaxy S20, Huawei P40)

• Manufacturing innovations:

  • CNC Grinding + Hot Bending achieves R1.5-8mm curvature radius

  • 0.1mm precision for perfect display laminate adhesion

  • Automotive Grade 3D Glass for dashboard HUDs (withstands -40°C~105°C)

4. Conclusion

Although there are already concepts of 3.5D Glass, 4D Glass and 5D surround display in market, 2.5D Glass is still mainstream on  Smartphone, Automotive & Wearable Glass, due to its cost-effective procession.

Next news, we will introduce details about what Fuxin Glass is developing on 2.5D glass.