A METHOD OF IMPLEMENTING TOUCH PAD BY USING FINGERPRINT READER AND A TOUCH PAD APPARATUS ADOPTING THE SAME METHOD

摘要

Disclosed are a method of implementing a touch pad by using a conventional TFT type fingerprint reader and a touch pad apparatus adopting the same method, which is capable of scanning fingerprints, locating positions of fingers and executing a clicking function. The method of implementing a touch pad by using a fingerprint reader is characterized by realizing a fingerprint recognition mode and a touch pad mode by means of a TFT type fingerprint reader (hereinafter, referred to as "a fingerprint reader") structured to have a plurality of unit cells arrayed therein to include a sensor TFT and a switching TFT in each unit cell for scanning fingerprints image, and a backlight positioned beneath the fingerprint reader for illuminating a light so as to penetrate the fingerprint reader.