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Indium in Touch Screens

A capacitive touch screen utilises a screen that is coated with a transparent conductive oxide, in most cases ITO – Indium Tin Oxide

Indium in Touch Screens

Cell phones have come a long way since the good old Nokias we used to love and the advancement in tech is possible with the combination of the internet and the touch screen.

Anywhere in public these days, people are more immersed in their phones than ever before. A cell phone is now so much more than a phone and have become a huge part of most people’s daily lives, with both positive and negative aspects. But can you imagine a world without touch screen enabled cells?

How do touch screens in cell phones work?

Most cell phones use a capacitive touch screen as this can handle multiple touches and gestures (such as swipes). A capacitive touch screen utilises a screen that is coated with a transparent conductive oxide, in most cases ITO – Indium Tin Oxide.

ITO is a very useful substance as it is both transparent and electrically conductive. When a thin layer of ITO is coated to the glass screen, the glass becomes conductive. By applying a uniform charge across the screen, the device can register a break in the circuit when a touch is applied.

Indium in touch screens

Indium was discovered in 1863. It gets its name from the Latin Indicium. A common word used today derived from the Latin Indicium would be ‘indicate’. Indicium was used as the basis of the name as Indium indicated a vivid beautiful violet line of the spectrum.

Combined with Tin and Oxygen, making Indium Tin Oxide, ITO is a widely used substance in many applications spanning across a range of industries. Common uses include smart windows, heater windows, capacitive switches, electron microscopy slides and, of course, touch screens. These are not just limited to cell phones and tablets; larger touch screens can be produced for retail, medical and military applications, for instance.

Diamond Coatings ITO

Diamond Coatings is now one of the leading global suppliers of Indium Tin Oxide glass. Located in Phoenix, Arizona, we are able to supply ITO coated touch screens in development or manufacturing volumes. We can produce in sizes up to a maximum of 1000mm x 1000mm, available in glass or plastic.

On request, we can also supply these screens with an anti glare finish and hard coat options. If you would like to know more about out Indium Tin Oxide glass options, please get in touch. A member of our team will get back to you as soon as is possible.




ITO coating on glass substrates

Within the many technological advancements of recent decades, there exists a subtle yet transformative fusion – Indium Tin Oxide (ITO) coatings on glass substrates

What is an Optical Coating?

An optical coating is a thin film deposited on a surface to alter its optical properties and manipulate the behaviour of light

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Operating ultra-modern magnetron sputtering plants complete with clean rooms from state-of-the-art factory premises in Phoenix, Arizona. Diamond Coatings provide an extensive range of products, including ITO (Indium Tin Oxide) and AR (Anti-Reflection) coatings on glass or plastics; capacitive and resistive touch screens; monolithic shielding filters (RFI) on glass or plastics; mesh windows, glass supplies and more.
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