公开(公告)号：US10558281B2

公开(公告)日：2020-02-11

申请号：US14798417

申请日：2015-07-13

Applicant: Apple Inc.

Inventor： Chun-Hao Tung ,  EnkhAmgalan Dorjgotov ,  Masato Kuwabara ,  Sunggu Kang ,  Cheng Chen ,  John Z. Zhong

IPC: G06F3/041 ,  B32B37/14 ,  B32B37/12 ,  G02B1/11 ,  G02B1/111

Abstract: Touch sensor panels typically include a plurality of layers that can be stacked on top of each other. When the touch sensor panel is used in a bright environment, incident light can hit the interfaces between those layers of the stackup having mismatched refractive indices and can reflect off those interfaces. The light reflected from those interfaces can give rise to the appearance of fringes on the touch sensor panel, which can be visually distracting. In order to reduce the appearance of these fringes, embodiments of the disclosure are directed to the addition of an index matching passivation layer between a conductive layer of traces and an adhesive layer in the touch sensor panel stackup.

公开(公告)号：US10444874B2

公开(公告)日：2019-10-15

申请号：US14957553

申请日：2015-12-02

Applicant: Apple Inc.

Inventor： Chun-Hao Tung ,  EnkhAmgalan Dorjgotov ,  Masato Kuwabara ,  Sunggu Kang ,  Cheng Chen ,  John Z. Zhong

IPC: G06F3/041 ,  G02B1/11 ,  G02B1/111 ,  B32B37/12

Abstract: Touch sensor panels typically include a plurality of layers that can be stacked on top of each other. When the touch sensor panel is used in a bright environment, incident light can hit the interfaces between those layers of the stackup having mismatched refractive indices and can reflect off those interfaces. The light reflected from those interfaces can give rise to the appearance of fringes on the touch sensor panel, which can be visually distracting. In order to reduce the appearance of these fringes, embodiments of the disclosure are directed to the addition of an index matching passivation layer between a conductive layer of traces and an adhesive layer in the touch sensor panel stackup.