Optical function sheet on the front, in-mold decoration on the back. Achieves AR, AG, AFP, and hidden designs through integrated molding.
Even if the functions of anti-reflective (AR), anti-glare (AG), and anti-fingerprint (AFP) can be achieved using the IML method, it was structurally impossible to balance them with a high-design aesthetic that takes advantage of the depth of transparent resin. Additionally, there was a problem with the printing layer affecting the color of the LCD backlight in the HIDDEN decoration on the back side. We established a hybrid molding method that inserts an optical function sheet (AR/AG/AFP compatible IML sheet) on the surface and applies in-mold decoration on the back side. By adopting the special printing technology of a major printing manufacturer, we achieved HIDDEN decoration that does not affect the color development of the LCD. We simultaneously realize the functionality of anti-reflective, anti-glare, and anti-fingerprint with a high-design aesthetic that has depth in a single panel.
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basic information
【Main Technologies and Manufacturing Methods】 - Surface: Insert molding of optical functional sheets (IML sheets compatible with AR/AG/AFP) - Back surface: In-mold decoration (compatible with special printing) - Optimization of hybrid molding conditions - Joint development of printing specifications with major printing manufacturers
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Applications/Examples of results
【Target Industries】 Smartphones, Tablets, In-vehicle Displays 【Example Applications】 - High-functionality Display Covers - Touch Panel Exteriors 【Achievements】 Simultaneously achieved functionality for AR anti-reflection, anti-glare, and anti-fingerprint, along with a high-design aesthetic with depth, all in a single panel. Ensured high-quality visibility and color reproduction that does not compromise the color rendering of the light source in HIDDEN decoration.
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Company information
**About Yoshida Techno Works** We are the world's first manufacturer to commercialize in-mold transfer molding, which utilizes plastic molding and decoration technology cultivated through cosmetic container manufacturing, allowing for simultaneous molding and transfer decoration. **Key Technologies** - Double in-mold molding that performs simultaneous decoration on both sides of the product - Hybrid molding that combines sheet inserts with in-mold techniques - Glass insert in-mold (GIM) molding that inserts reinforced glass into the mold, allowing for integrated molding of resin frames and decoration - Two-color in-mold molding that combines rotational two-color molding with in-mold transfer - Composite technology that integrates metal (such as SUS sheet metal and nuts) with in-mold molding - Real material (natural wood, fabric, synthetic leather, etc.) insert molding - Out-mold deep drawing decoration method (VSS) compatible with metal, glass, and resin