Take a look at the membrane key design below to see the enormous potential for malfunction. Here we have some mechanical keys, which are protected by a membrane and backlit from beneath. It comprises a huge number of layers.
Not only do these layers suffer from wear and tear, but just cleaning the keys can introduce liquids onto the PET foil and cause permanent damage to the internal electronics.
To prevent this from happening, we can replace the entire stack with just three layers:
The thickness of this new stack is a 100% mechanical fit and equal in size to the original membrane key stack. It has no issue with liquids (it won’t even register a ghost touch from them) and will suffer no mechanical stress.
Extending the 12.1” display size offering, Avnet Displays adds another bright addition to the SimplePlus Touch Display family — combining trusted performance with an even broader choice for our customers.
Technologies tend to come full circle, but in this case we mean literally – combining an advanced rotary encoder (and encoder shell) with a 1.28-inch circular TFT display for a single, compact control solution. Users can navigate with precision by simply turning or pressing the knob, while the integrated screen displays menus, status updates or graphics right at the point of interaction.
From an electrical point of view, our uC solution generates exactly the same signals as mechanical keys, so our customers don’t even have to worry about any adaptations to their electronics either.
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Stefano Rosato - Director, Technical Touch Technology at Avnet Stefano Rosato is director of technical touch technology in the Display Solutions team at Avnet. Stefano helps customers solve touch challenges and supports customers through the whole design-in phase for touchscreen integration. With deep knowledge about PCAP technology, along with its design-in rules, tuning and pattern designs, Stefano is a leading expert in the touchscreen industry.Read More |
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