ACTIVE MATRIX CAPACITIVE FINGERPRINT SENSOR FOR DISPLAY INTEGRATION BASED ON CHARGE SENSING BY A 2-TFT PIXEL ARCHITECTURE

摘要

Embodiments described herein include an input device including an array of sensing pixels configured to sense an input object in a sensing region, each of the sensing pixels including a sense element. Each of the sensing pixels also includes a first transistor, wherein the first transistor includes a gate terminal connected to a row select line and a second terminal connected to the sense element. Each of the sensing pixels also includes a non-linear circuit element, wherein the non-linear circuit element includes a first terminal connected to the sense element and the second terminal of the first transistor, and wherein the non-linear circuit element further includes a second terminal connected to a column output line.

主权项

1. An input device, comprising:
an array of sensing pixels configured to sense an input object in a sensing region,
each of the sensing pixels comprising:a sense element;a first transistor, wherein the first transistor comprises a gate terminal connected to a row select line and a second terminal connected to the sense element; anda non-linear circuit element, wherein the non-linear circuit element comprises a first terminal connected to the sense element and the second terminal of the first transistor, and wherein the non-linear circuit element further comprises a second terminal connected to a column output line.