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Foils designed out of touch screens
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01/03/2007
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A colour touchscreen technology that avoids the use of foils has been developed for navigation, HVAC and multimedia displays for the automotive industry.
Instead of foils being placed on liquid crystal display screens, the Johnson Controls innovation allows a sensor mechanism to be incorporated directly into the glass. The special layout of the LCD has several sensitive areas where finger positions can be detected by capacitive effect.
Foil-free display screens are also said to be “rich in brightness” and more cost-effective than other touchscreen systems.
As a first application example of the technology, which is already available for monochrome displays, Johnson Controls has developed an air-conditioning control panel requiring only a very small amount of installation space. The touchscreen of this unit supports all conventional operating functions and eliminates around 20 mechanical knobs and buttons.
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Author
Roger Bishop
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