Glass-based 8.0×8.0mm capacitive fingerprint sensor is transparent
JDI’s glass-based capacitive fingerprint sensor applies the basic touch functionality technology that is integrated in its in-cell Pixel Eyes displays which have been used in smartphone and digital still camera applications. With Pixel Eyes, the touch functionality is integrated into the glass substrate by detecting the changes in capacitance that occur when a finger touches the LCD surface. The glass substrate identifies the area touched by the finger through the detection of the changes in capacitance.
This technology has evolved within JDI to the extent that the company has succeeded in enhancing it to detect the changes in capacitance caused by the recesses and ridges of an individual’s fingerprints. This further technological development made it possible to form JDI’s new capacitive fingerprint sensor on a transparent glass substrate. JDI will expand the lineup to include larger or smaller sizes as well as the 8x8mm sensor now proposed at a pixel density of 508dpi for a 160×160 resolution.
Japan Display Inc. – www.j-display.com
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