公开(公告)号：US10796126B2

公开(公告)日：2020-10-06

申请号：US16221672

申请日：2018-12-17

Applicant: AU OPTRONICS CORPORATION

Inventor： Wu-Wei Lin ,  Jui-Chi Lo

IPC: G06K9/00 ,  G06F3/044 ,  G06F3/041

Abstract: A fingerprint sensing device comprises a plurality of sensing pads, a plurality of data lines, a shielding layer, and a plurality of auxiliary voltage lines. The data lines are separately and electrically connected to the sensing pads, and configured to provide a sensing voltage to the sensing pads. The shielding layer is disposed between the sensing pad and the data lines. The auxiliary voltage lines are separately and electrically connected to the sensing pads, configured to provide an auxiliary voltage to the sensing pads. The auxiliary voltage is different from the sensing voltage. When a first sensing pad receives the sensing voltage, a second sensing pad adjacent to the first sensing pad receives the auxiliary voltage.

公开(公告)号：US20190042821A1

公开(公告)日：2019-02-07

申请号：US15795261

申请日：2017-10-27

Applicant: Au Optronics Corporation

Inventor： Wu-Wei Lin ,  Jui-Chi Lo

IPC: G06K9/00

Abstract: A sensing method of a fingerprint sensor is provided. The fingerprint sensor includes a plurality of sensing pixels arranged in an array, and the sensing pixels respectively have a sensing electrode. The sensing method includes following steps. A required resolution of an identification requirement is determined; here, the identification requirement is received by the fingerprint sensor. If the number of pixels of the required resolution is less than or equal to the number of the sensing pixels, self-capacitance sensing is performed on the sensing pixels to provide a first fingerprint pattern. If the number of pixels of the required resolution is greater than the number of the sensing pixels, the self-capacitance sensing and mutual capacitance sensing are performed on the sensing pixels to provide a second fingerprint pattern.