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pvd coating machine LR anti-reflection optical film application

2022-06-10

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       The LR anti-reflection optical film of pvd coating machine is suitable for high-end LCD TV models. LR anti-reflection optical film is mainly used in large-sized LCD panels such as notebook computers (NB), LCD Monitor and LCD TV. Since these products are mostly used indoors, Therefore, the general reflectivity is about 1%, which is higher than that of AR type optical film. Because of this, the LR type optical film has a simpler structure, roughly including a TAC optical film, a hard coat layer, and an LR layer, and the cost is also lower than that of the AR type.


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       However, if you want to prevent collision with hard objects, or better scratch resistance, the hardness required for LR-type optical film for pvd coating machine will be higher, especially when discussing work content with people, you often touch the notebook computer or LCD with a pen Monitor screen, so the pvd coating equipment LR optical film required for this type of product has higher hardness. If expressed in terms of pencil hardness, when the general LR optical film is 3H, the vacuum coating machine-enhanced optical film will be required to increase the hardness to 4H~5H, but the risk is that when the hardness of the optical film increases, its deformation probability will increase (easy to curl ), and the thickness of the optical film also increases, which relatively increases the difficulty of the process and the cost of materials.
       When corresponding to LCD TV application products, there are also different functions and demands, so the structure of LR optical film of pvd coating machine has also changed, especially the AG function will be added to the LR optical film for high-end LCD TV, which is called AGLR optical film , In addition to reducing the reflectivity, it can also prevent glare, which has the advantage of improving the contrast value and making the black screen more expressive.
       In response to the recent rise of ultra-thin LCD TVs, not only the thickness of the backlight module for TVs needs to be made thinner, but also the thickness of the optical film must be carefully calculated. Generally, the thickness of the TAC substrate in the LR optical film of the pvd coating machine is 80um, which can now be reduced to 40um, which is thinner than the thickness of toilet paper, but the disadvantage is that the scratch resistance and hardness of the optical film will be reduced.
       The anti-reflective optical film of pvd coating machine may be a non-must-have component in LCD displays. However, in the future, the terminal application products corresponding to small-sized LCD panels will be diversified, and the convenience of portability will make it more convenient to use outside. In the long run, in order to improve the visibility of LCD displays in the outdoors, it is estimated that the proportion of AR optical films used in small and medium-sized LCD panels will increase; for large-sized LCD displays, if LR optical films do not increase too much cost. It can improve surface hardness, scratch resistance, and anti-glare function.