Many people interested in technology might have known that optical thin film is the essential part of the LCD or LED screen, but did they know what exactly it is?
Thin film is the layer of liquid material between two glass plates. These two glass plates are coated with a special kind of paint which has a thickness of just one-thousandth of an inch and is called optical thin film.
The process of making optical thin film
If you were to imagine it in layers, then the coating is one-thousandth of an inch thick, and each layer is made up of different material. The precision optical products are made from optical thin film coating companies like https://pfgoptics.com.
First Step
The first layer is usually made up of various dyes. The following layers are made up of other materials like metallic layers, etc. It is one of the essential components of display devices manufactured using a wide range of materials and equipment.
If you are interested in making this technology, this article will give you detailed information. The procedure to make this type of film is quite simple and easy to understand, and even if you don’t know anything about it, this will still be helpful to you.
Second Step
The process starts with the preparation of glass sheets. These glass sheets can be bought, or you can easily make them by mixing different chemicals like soda-lime glass or borosilicate glass. The first step is cleaning these sheets thoroughly. Then they are placed in an oven for heating at a temperature of 100 degrees Celsius. The soda and lime glass get dissolved and become liquid at this temperature. The borosilicate glass will bring a crystallized appearance. These glass sheets are then cooled down to room temperature, and the thickness of each sheet is measured using a digital gauge.
Third Step
The next step is coating them with a special kind of paint. This process is very similar to painting with a brush, but it is much easier and faster. If you don’t have access to the equipment, you can get a plastic stencil that has holes made in the shape of the display and use it to make the necessary layers of the thin film. In this way, you can make the exact number of layers required.
After the coating process, the display is dried and stored at a temperature of 40 degrees Celsius to allow for any impurities to evaporate. This process is significant for removing all the impurities present in the display.
Final Step
Once everything is ready and dry, you need to seal the display by sticking two thin glass plates together using transparent glue. Then it would be best if you made sure that these glass plates were perfectly aligned so that the distance between them was uniform. Once this is done, you can stick the glass panels together and polish them as per your requirements.
Conclusion
To make an optical thin film, it is essential to get some equipment, and it is also vital that you know how to use it. The first thing you have to check is that the thickness of each layer must be uniform, and it must be made up of different materials. For this, you will need to prepare the glass sheets properly.
