公开(公告)号：US11353373B2

公开(公告)日：2022-06-07

申请号：US16887352

申请日：2020-05-29

Applicant: STMicroelectronics Asia Pacific Pte Ltd

Inventor： Min Sang Kim ,  Chan Hyuck Yun ,  Sa Hyang Hong ,  Ju Hyun Son

IPC: G01L1/00 ,  G01L1/22

Abstract: A strain gauge includes first and second substrates spaced apart from one another. A first flexible printed circuit board portion is in contact with a top side of the first and second substrates, and has a first Wheatstone bridge formed therein. The first flexible printed circuit board portion positions the first Wheatstone bridge such that two resistors of the first Wheatstone bridge are positioned to span from the top side of the first substrate to the top side of the second substrate. A second flexible printed circuit board portion is in contact with a bottom side of the first and second substrates, and has a second Wheatstone bridge formed therein. The second flexible printed circuit board positions the second Wheatstone bridge such that two resistors of the second Wheatstone bridge are positioned to span from the bottom side of the first substrate to the bottom side of the second substrate.

公开(公告)号：US11243636B1

公开(公告)日：2022-02-08

申请号：US17107137

申请日：2020-11-30

Applicant: STMicroelectronics Asia Pacific Pte Ltd.

Inventor： Ju Hyun Son ,  Min Sang Kim ,  Yun Sang On ,  Sa Hyang Hong ,  Yong Hun Lee

IPC: G06F3/045 ,  G06F3/041 ,  G06F1/16 ,  G06F3/044

Abstract: A method for operating an electronic device includes: having a touch sensitive display configured to be rolled into or unrolled out of a first retainment structure along a first direction. The first retainment structure includes a conductive material disposed within the first retainment structure. The method includes unrolling or rolling the touch sensitive display to an unrolled position along the first direction; determining that the touch sensitive display is detecting contact at a plurality of mutual sensing locations using a mutual sensing process; determining that the touch sensitive display is detecting contact at a plurality self-sensing locations using a self-sensing process; determining a plurality of multi-mutual sensing locations based on multi-mutual sensing values obtained from a multi-mutual sensing process; and determining the unrolled position along the first direction based on the plurality of mutual sensing locations, the plurality self-sensing locations, and the plurality of multi-mutual sensing locations.