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Polarizers get their polarizing properties from being dyed in a PVA film and being stretched.
The dye ingredients is roughly divided into iodine materials and dye materials. Dye materials have slightly inferior optical properties compared to iodine materials, but they provide superior durability and heat resistance.
Our dyed polarizers boast durability as one of their strengths and have a good reputation for uses in on-board devices such as car navigation units, as well as LCD projectors.
Leveraging the development expertise of Nippon Kayaku Co., Ltd. for dyes and adhesives and our manufacturing technology, Polatechno accounts for more than half of the durable polarizer market.
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The fact that Polatechno handles manufacturing end-to-end, from TAC pre-treatment to coating processing, is one of our strengths in the area of manufacturing technology.
In a matter of speaking, polarizers and retardation films are the cumulative result of multiple technologies, and, in order to get 100% performance from materials, technological improvements must be pursued while checking quality and properties at each process.
Transflective film, light scattering film, and colored / adhesive polarizers are applications of technology for optical adhesives and adhesive processes, and the fact that we are capable of producing this kind of added functionality is another one of Polatechno's strengths.
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This is a high-resolution transflective / reflective polarizer developed according to a completely different approach from tradition polarizers.
Our proprietary light scattering function makes possible a wide-viewing angle and paper white backgrounds. |
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| This makes it possible to apply the desired hue to the liquid crystal device and get a display with higher quality contrast than that achieved with color polarizers by adding pigment, such as dyes, to the polarizer's adhesive layer. |
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| This controls light leakage at a high level achieving high durability. |
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| Without light leakage control function |
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| With light leakage control function |
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We provide this as a composite unit with a polarizer using our proprietary coating and attachment technology.
AG, AR, and other surface processing is also possible. Combination with the light leakage function is also possible. |
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| These are high-durability elliptical polarizers using dyed polarizers, with adhesives newly developed in order to improve durability. |
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We developed elliptical polarizers in which Twister™ a temperature-sensitive optical compensation film manufactured by Netherlands subsidiary Dejima Optical Films B.V., and polarizers are attached.
The main feature of Twistar™ is that they maintain optical compensation over a wide range of temperatures as the optical properties of liquid crystals change with the temperature. They are used for extreme temperature conditions such as those found in in-car displays and mobile phones. |
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