The Theory of Display Evolution
Starting from a single function that one could only view, displays are changing into touch modes one can stroke and swipe. This dramatic evolution has brought about the birth of smartphones and revolutionized the operation of tablet computers.
Touch panels were originally only used in certain limited areas, such as station ticket machines, bank ATMs, copier operation panels, and so on. However, after being introduced in smartphones, touch panel found dramatically increased applications in different areas.
ITO film plays a critical role in the development of touch panels. Consisting of one rare metal called indium, ITO is applied on a film substrate. By passing an electric current through it, it can sense the slightest movements of a fingertip. Kaneka has been working on the research and development of ITO film using the technologies we have mastered to date.
In fact, in a conventional technology, ITO glass is usually applied for touch panels. As a stable material, glass is also likely to look luxurious. The glass substrate also helps hide the electrode patterns on displays.
However, glass suffers from an easy breakage. If we could optimize ITO film that is as beautiful as ITO glass and could hide all electrode patterns, the future would change greatly. It is the belief of Kaneka. Then, after long term research, we finally completed ITO film that conceals electrode patterns.
Such a new product is an integration of the thin-film technology for solar cells; and the optical film technology of the electronic materials field, which Kaneka has been working on for many years. Technological difficulty such as transparency has also been solved brilliantly.
In the near future, flexible touch panels are expected to be developed. To bring about these next-generation displays even a day earlier, Kaneka will continue to work on evolving ITO films even further.
ITO film hiding all electrode patterns

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