Patent ID: 7973311
Filing Date: 2011-07-05
Classification: H01L

Abstract:
1. A sensor structure comprising: a flexible substrate; a thin-film transistor formed over said flexible substrate, said thin-film transistor having a drain pad; an encapsulation layer formed over said thin-film transistor, said encapsulation layer having a via formed therein; a pixel metal layer patterned to generally overly said thin-film transistor and having a region extending into said via so as to make electrical contact with said drain pad, said pixel metal layer having a top surface and a lateral edge; a first sensor layer in physical and electrical contact with said top surface of said pixel metal layer, said first sensor layer having a top surface and a lateral edge, said first sensor layer patterned such that its lateral edge extends beyond the lateral edge of said pixel metal layer to thereby define an overhang region; and a second sensor layer in physical and electrical contact with said top surface and said lateral edge of said first sensor layer, said second sensor layer physically and electrically isolated from any structures laterally adjacent thereto.