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Optical Windows

WTS Lets You Understand 9 Optical Films（Coating ）

Apr 23, 2018

Optical films are ubiquitous in our lives, from precision and optical devices and display devices to optical film applications in everyday life; Optical films can be classified according to their use classification, characteristics and applications: reflective film, anti-reflection/anti-reflective film, filter, polarizer/polarizer film, compensation film/phase plate, alignment film, diffusion film/sheet, Brightening film / prism sheet / condenser film, shading film / black and white glue. Related derivatives include optical grade protective films, window films, and the like.

1. Reflective films can generally be classified into two types, one is a metal reflective film, and the other is an all-electric reflective film.
2.Anti-reflection / anti-reflection film Anti-reflection coating, also known as anti-reflection coating, its main function is to reduce or eliminate the reflected light of the lens, prism, plane mirror and other learning surfaces, thereby increasing the light transmission of these components, reducing or eliminating the system's stray light.
3, Filter Filters are made of plastic or glass and then add special dyes, red filters only allow red light to pass, and so on. The refractive index of the glass sheet is almost the same as that of air, and all shades can pass through, so it is transparent, but after the dye is dyed, the molecular structure changes, the refractive index also changes, and the passage of certain colors of light changes. For example, when a white light passes through a blue filter, it emits a beam of blue light. The green and red light are very few and most of them are absorbed by the filter.
4.Polarizer The full name of the Polarizing Film should be a polarizer. The main role of the polarizer is to make the non-polarized natural light become polarized, converted into polarized light, plus the torsional characteristics of the liquid crystal molecules, to control the passage of light, thereby increasing the transmittance and viewing angle range, forming Anti-glare and other functions.
5.Compensation film/phase difference board The compensation principle of the compensation film is to correct the phase difference produced by the liquid crystals at various viewing angles in various display modes (TN/STN/TFT (VA/IPS/OCB)). In brief, it is the birefringence of liquid crystal molecules. The nature is compensated for by symmetry.
6, the alignment film The alignment film is a thin film with straight stripe scratches, and the role is to guide the arrangement direction of the liquid crystal molecules.
7, the proliferation of film The diffusion film is a key component of the TFT-LCD backlight module and can provide a uniform surface light source for the liquid crystal display.
8, Brightness enhancement film / prism sheet / condenser film Brightness enhancement film is also called Prism Sheet, often abbreviated as BEF (Brightness EnhancementFilm), and is a key component in the TFT-LCD backlight module. It is mainly based on the principle of light refraction and reflection.
9, Shading film / black and white glue Black and white shading glue | shading film is mainly used in the backlight source, from the fixed, shading effect (cover off the side light and light position of the light), also known as shading film, black and white film, referred to as black and white glue (can be said to be a kind of double-sided tape) .

Through this knowledge shared by WTS, we have a better understanding of these membrane systems. Our company also has AR film, MgF2 film, AL film (metal film) Optical Windows,Optical Lenses,Optical Prisms,products. Welcome inquiry.

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