Transparent Display-Type Glue-Free Flexible Copper-Clad Film (CPI)
Category:
Product Advantages
The transparent, adhesive-free flexible copper-clad laminate (CPI) boasts high bendability and excellent light transmittance, while also inheriting the outstanding electrical, thermal, and mechanical properties of PI. It holds tremendous potential for applications in transparent flexible circuit boards, thin-film transistors (TFTs), touch screen panels (TSPs), COFs, and various display technologies.
Product Applications
Transparent flexible circuit boards, transparent displays, foldable flexible displays, and crystal-membrane screens, etc.
Substrate parameters
| Project | Method | Specification value | |
| Physical properties | Thickness | Micrometer | 50 μm |
| Wide format | Tape measure measurement | 250~1250mm | |
| Transmittance @ 550nm | Spectrophotometer | ≥88% | |
| Haze | ASTM D1003 | 7.3% | |
| Dielectric constant | ASTM D150 | 1 MHz 2.8~10 GHz 3.1 | |
Product Parameters
| Project | Method | Specification value | |
| Physical properties | Thickness | Micrometer | 86 ± 3 μm |
| Wide format | Tape measure measurement | 250~1250mm | |
| Dyne value | Dyne pen | ≥#42 | |
| Adhesion | Peel strength test | 6.81N/cm | |
| Appearance performance | Defective spots (including raised or recessed spots/dirty spots), Smooth bumps and dents allowed |
Light table 20W × 4 FLFL lamps/microscope (500*500mm) |
0.12 < Φ ≤ 0.16 mm, ≤ 15 units |
| 0.16 < Φ ≤ 1.0 mm, ≤ 10 units | |||
| Φ > 1.0 mm, not allowed | |||
| Linear defects, scratches | W ≤ 0.01 mm, L ≤ 10 mm, not included | ||
| 0.02 mm ≥ W > 0.01 mm 15 mm ≥ L > 1.5 mm, ≤ 5 units |
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| 0.2 mm < W or 15 mm < L—not allowed | |||
| Pinhole collects data | 30 < Φ ≤ 60 µm, 100 units 60 < Φ ≤ 100 µm, 10 units Φ > 100 μm: Not allowed |
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| Indentation | Visual/Film Ruler | Gentle, OK. | |
Transparent Display-Type Glue-Free Flexible Copper-Clad Film (CPI)
Category:
- Description
-
Product Advantages
The transparent, adhesive-free flexible copper-clad laminate (CPI) boasts high bendability and excellent light transmittance, while also inheriting the outstanding electrical, thermal, and mechanical properties of PI. It holds tremendous potential for applications in transparent flexible circuit boards, thin-film transistors (TFTs), touch screen panels (TSPs), COFs, and various display technologies.
Product Applications
Transparent flexible circuit boards, transparent displays, foldable flexible displays, and crystal-membrane screens, etc.
Substrate parameters
Project Method Specification value Physical properties Thickness Micrometer 50 μm Wide format Tape measure measurement 250~1250mm Transmittance @ 550nm Spectrophotometer ≥88% Haze ASTM D1003 7.3% Dielectric constant ASTM D150 1 MHz 2.8~10 GHz 3.1 Product Parameters
Project Method Specification value Physical properties Thickness Micrometer 86 ± 3 μm Wide format Tape measure measurement 250~1250mm Dyne value Dyne pen ≥#42 Adhesion Peel strength test 6.81N/cm Appearance performance Defective spots (including raised or recessed spots/dirty spots),
Smooth bumps and dents allowedLight table 20W × 4 FLFL lamps/microscope
(500*500mm)0.12 < Φ ≤ 0.16 mm, ≤ 15 units 0.16 < Φ ≤ 1.0 mm, ≤ 10 units Φ > 1.0 mm, not allowed Linear defects, scratches W ≤ 0.01 mm, L ≤ 10 mm, not included 0.02 mm ≥ W > 0.01 mm
15 mm ≥ L > 1.5 mm, ≤ 5 units0.2 mm < W or 15 mm < L—not allowed Pinhole collects data 30 < Φ ≤ 60 µm, 100 units
60 < Φ ≤ 100 µm, 10 units
Φ > 100 μm: Not allowedIndentation Visual/Film Ruler Gentle, OK.
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