Display Screen Operable For Finger Print Scanning
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Abstract
A system and method are disclosed that determines the location of an object touching a display screen. The system and method modifies already existing display technology, including using the underlying structure of many types of existing displays as the touch detecting structure. The systems and methods are applicable to virtually all LCD and LCD-like displays, including emissive displays (OLED, PLED, quantum dot displays, etc.), electronic paper, and others.
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Citations
14 Claims
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1-13. -13. (canceled)
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14. A fingerprint scanning display capable of capacitive touch detection comprising:
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a. an active matrix display; and b. an array of capacitive detectors integrated with the display, each detector configured to indicate a capacitive change due to proximity of an object to the capacitive detector, wherein the array of capactive detectors is; i. configured to capacitively detect the ridges and valleys of a finger in touch contact with the display; and ii. sufficiently dense to represent a fingerprint accurately.
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Specification