Tempered Glass

ProductsTempered GlassMobile cover glass

Mobile Device Cover Glass

Leading the market with unrivaled products, design, and technology

proven through mass production of mobile cover glasses
for the first time in the world in 2014

Since 2014, with the world's first production of Mobile Cover Glasses being proven, JNTC is leading the Mobile Cover Glass market with unique products, design, and technology Mobile cover glasses are classified into 1-Bended, 2-Bended, and 4-Bended depending on the edge surface configuration. 1-Bended is the world's first design developed by JNTC and is applied to Samsung Note 4 Edge model with one-sided curved surface, and 2-Bended has a two-sided curved surface such as Samsung Galaxy S6 Edge model. 4-Bended is a four-sided curved surface such as Samsung Galaxy S7 Edge model.

With the differentiated design and commercialization of 5G mobile phone in 2019, JNTC has developed and mass-produced Keyless cover glasses, which requires high technology, for the first time in the world. Keyless cover glasses have been exclusively delivered to Huawei, a Chinese mobile phone maker, and have been applying cover glasses from Mate 30 Pro to Mate 60 Pro and foldable phones

Starting in 2022, Samsung Galaxy Series S22 has re-entered the development of window cover glass, and in 2023, the next generation of deposition technology is being applied to window cover glass that reduces the reflectance of the display and improves transmittance

Core technology

Technology Concept Technology details
Thermoforming technology
열성형모식도
- Capable of forming Al-Si glass
- Capable of forming ceramic glass (Kunlun Glass)
- Full automated system (Loading & unload & Clean system)
Polishing
열성형모식도
- JNTC owns different types of glass polishing equipment,
   which polish the front, back and side of the glass to eliminate
   marks from CNC or thermoforming.
- Area polishing : polishing on a limited area
- Front/back polishing : polishing on both front and back
   side of the surface
- Side polishing : polishing on side surface of the glass.
Print
(PAD Type)
열성형모식도
- Suitable for printing on 3D-shape glass
   (BM, IR, Icon, Logo, Align, LOT)
- High print quality (dimension & visual)
- High productivity by automation
High hardness coating
열성형모식도
- Capable of simultaneous coating. (hard coating & AF coating)
- Optical, physical design simulation technology
- Mohs hardness 7↑, Nano indentation hardness 17Gpa↑
- Initial contact angle 110°↑, after abrasion 102 °↑
  Excellent anti-abrasion, anti-scratch, and high hardness surface
AR coating for
camera window
열성형모식도
- Coating on limited area of camera window
- Precise lamination using masking lamination equipment
- Use JNTC sputter coater
- Optical design based on customer's request



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