Transparent PI
Tailor-made PI solutions designed to meet your material requirements.
From optical to thermal performance, fully customized according to your specifications.
Creating the most suitable transparent substrate formulations.
High Glass Transition Temperature × Low Coefficient of Thermal Expansion × High Modulus × Low Phase Retardation
Optical-Grade Transparent PI Adhesive
Customized Varnish Transparent PI is a highly flexible, optical-grade transparent PI precursor material designed for a wide range of transparent substrate applications.
The formulation can be tailored to meet customers’ end-product requirements and process conditions. Whether applied to touch panels, transparent displays, TFT substrates, or high-reliability optical structures, this material delivers a comprehensive solution that balances optical transparency, thermal stability, and mechanical strength.
Common Challenges and Limitations
With the rapid evolution of modern transparent display technologies, the market is placing increasingly stringent demands on materials:
- Different TFT substrate processes require different Tg and CTE specifications
- General transparent PI struggles to maintain dimensional stability during high-temperature processing
- Diverse end-product requirements make standard formulations insufficient
Because standardized PI resin products struggle to meet diverse and sometimes conflicting requirements, Microcosm’s Customized Varnish Transparent Polyimide is specifically engineered to address these differentiated application needs.
Product Advantages
| Feature | Description | Product Values |
|---|---|---|
| High Tg (glass transition temperature) | ≥ 450°C（MSL15G1） | Suitable for high-temperature TFT–LTPS processes |
| Low CTE (coefficient of thermal expansion) | <10 ppm/°C | Minimizes dimensional change and improves reliability for precision modules |
| High optical transmittance | > 90% | Maintains display brightness and image clarity, enhancing optical quality |
| Fully customizable formulation | Adjustable to specific end-use requirements | Optimizes performance and increases design flexibility |
Why Choose Us?
See the Product Comparison
| Performance Metric | Microcosm – Customized Varnish Transparent PI | General Transparent PI Resin | Conventional Optical Coatings |
|---|---|---|---|
| Customizable formulation | ✔ Tg/CTE/optical properties adjustable | ✘ Fixed standard specs | ✘ |
| High Tg thermal resistance | ＞450℃ | 150-250°C | ＜150°C |
| CTE (thermal expansion) | ＜10 ppm/℃ | 40–80 ppm/°C | High; unsuitable for high-temperature processes |
| Transparency | ＞90 % | 85-88% | 80–90% |
| Application industries | TFT substrates, transparent substrates | General electronics | Limited surface applications |
The Optimal Solution
Microcosm Customized Varnish Transparent Polyimide offers an industry-rare level of formulation flexibility, precisely meeting the material demands of advanced transparent substrates and high-end display applications. It is an ideal solution for premium display and panel manufacturers.
Product Application Advantages
