Transparent PI + UTG Composite Cover Window

( 95 mm Low-Crease, Shatter-Resistant Solution )

UTG Applications in Composite Cover Window: Enhanced Performance

Providing Thinner, More Resilient, and Better User Experience Flexible Display Options

Low Crease × Tear-Resistant × Thinner Foldable Screen Material

Crease-Free Next-Generation Foldable Cover Window

Microcosm Technology introduces its latest-generation Transparent PI + UTG Composite Cover Window, with a total thickness of only 95 μm (Transparent PI 45 μm + UTG 50 μm).

Compared with mainstream PET + UTG solutions, this design reduces overall thickness by nearly 40%, while delivering breakthrough performance:

  • Ultra-low crease depth: 3–8 μm (almost invisible to the naked eye)
  • Stylus drop impact resistance: up to 45 cm
  • 2,500-cycle steel wool scratch resistance
  • 200,000 dynamic bending cycles at 85°C / 85% RH with no cracks

This solution is ideal for 2025–2026 next-generation foldable smartphones, foldable laptops, and automotive curved displays that demand extreme thinness and minimal crease visibility.

客製化透明聚醯亞胺膠體

Common Challenges and Limitations

As modern transparent display technologies continue to evolve rapidly, material requirements in the market are becoming increasingly stringent:

  • Visible creases that degrade user experience and brand perception
  • Insufficient impact resistance in flexible cover window materials
  • PET + UTG stacks are difficult to thin further, limiting overall device slimness
  • Constraints on bending radius and cycle life, reducing design freedom and product lifespan

We understand these challenges deeply. Over the past five years, we have worked closely with leading foldable smartphone brands to address them, and have successfully completed impact resistance, crease resistance, and bending reliability tests.

Product Application Scenario

Feature Description Product Values
Ultra-thin thickness Only 95μm（nearly 40% thinner） Slimmer device profile, larger battery capacity, greater design flexibility
Virtually crease-free Crease depth only 3–8 μm, almost imperceptible Premium visual experience and enhanced brand value
Excellent impact resistance Withstands a 45 cm pen drop without damage Significantly reduced after-sales issues and stronger brand reputation
High-temperature & high-humidity folding durability 200,000 cycles @ 85°C / 85% RH with no cracking A lifetime specification you can confidently claim in product datasheets
Superior surface hardness & scratch resistance 2,500 steel wool cycles with no visible damage Worry-free durability for everyday use
透明PI＋UTG複合蓋板

Why Choose Us?
See the Product Comparison

Foldable Device Challenge Microcosm Transparent PI + UTG Composite Cover Window Standard PET + UTG
Total Thickness 95 μm (Composite cover 45 μm + UTG 50 μm) 155μm（PET55μm + UTG50μm）
Pen Drop Height 45cm 33cm
Crease Depth 3~8μm Approx. 20μm
Thickness Reduction Capability Enables thickness reduction to below 50% Limited thinning capability

 

The Optimal Solution

The Microcosm solution delivers thinner profiles, lower crease visibility, and greater durability for next-generation flexible display materials.

Product Application Structure

Transparent PI + UTG Composite Cover Window