公开(公告)号：US20200089372A1

公开(公告)日：2020-03-19

申请号：US16568829

申请日：2019-09-12

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Sang Jin PARK ,  Do Hyoung KWON ,  Sung Jin NOH ,  Han Tae RYU ,  Jun Gu LEE

IPC: G06F3/044

Abstract: A touch sensor includes a substrate layer, sensing electrodes on the substrate layer, and optical compensation patterns. The sensing electrodes include electrode lines therein which extend in different directions to cross each other. The sensing electrodes are defined by separation regions at which portions of the electrode lines are cut. The optical compensation patterns are disposed at a different level or a different plane from that of the sensing electrodes. The optical compensation pattern at least partially fills the separation regions in a planar view. Optical properties of the touch sensor are improved by the optical compensation pattern, and visibility of electrodes is prevented.

公开(公告)号：US20210223914A1

公开(公告)日：2021-07-22

申请号：US17224414

申请日：2021-04-07

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Sung Jin NOH ,  Han Tae RYU ,  Do Hyoung KWON ,  Sang Jin PARK ,  Jun Gu LEE

IPC: G06F3/044

Abstract: A touch sensor according to an embodiment of the present invention includes a substrate layer, and sensing electrodes arranged on the substrate layer. The sensing electrodes includes a stacked structure of a transparent oxide electrode layer and a metal layer, and has an optical ratio of 5 or less. A structure of high transmittance and low reflectance can be implemented by a control of the optical ratio of the sensing electrodes.

公开(公告)号：US20200091358A1

公开(公告)日：2020-03-19

申请号：US16568561

申请日：2019-09-12

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Sung Jin NOH ,  Do Hyoung KWON ,  Jong Hee KIM ,  Sang Jin PARK ,  Han Tae RYU ,  Jun Gu LEE

IPC: H01L31/0224 ,  G06F3/041 ,  G06F3/044

Abstract: A touch sensor includes a substrate, and an electrode formed from a conductive stack structure including a first conductive oxide layer, a copper-containing metal layer and a second conductive oxide layer sequentially stacked from the substrate. The first conductive oxide layer and the second conductive oxide layer each include a copper-metal oxide. Chemical and mechanical stability of an electrode may be improved by the first and second conductive oxide layers.

公开(公告)号：US20210373713A1

公开(公告)日：2021-12-02

申请号：US17402903

申请日：2021-08-16

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Do Hyoung KWON ,  Sung Jin NOH ,  Sang Jin PARK ,  Han Tae RYU ,  Jun Gu LEE

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch sensor according to an embodiment of the present invention includes a substrate layer, and sensing electrodes which are disposed on the substrate layer, and have etching regions formed therein in a periodically repeated manner and respectively having a width of 5 to 15 μm. Through the etching regions, transmittance may be improved and optical interference with an image display device may be reduced. The present invention also provides a window stack structure and an image display device including the touch sensor.

公开(公告)号：US20210223918A1

公开(公告)日：2021-07-22

申请号：US17149960

申请日：2021-01-15

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Sang Jin PARK ,  Do Hyoung KWON ,  Cheol Hun LEE ,  Sung Jin NOH ,  Jun Gu LEE ,  Ki Joon PARK

IPC: G06F3/044

Abstract: A touch sensor according to an embodiment of the present invention includes a substrate layer, sensing electrodes arranged on a top surface of the substrate layer, the sensing electrodes having boundaries in which a plurality of convex portions are connected, and a dummy electrode disposed between the sensing electrodes, the dummy electrode having a boundary in which a plurality of convex portions are connected. The sensing electrodes include a first sensing electrode arranged in a column direction and a second sensing electrode arranged in a row direction. A convex portion in a region where the first sensing electrode, the second sensing electrode and the dummy electrode are adjacent to each other has a radius of curvature less than that of a convex portion in other regions.

公开(公告)号：US20200089352A1

公开(公告)日：2020-03-19

申请号：US16568921

申请日：2019-09-12

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Do Hyoung KWON ,  Sung Jin NOH ,  Han Tae RYU ,  Sang Jin PARK ,  Jun Gu LEE

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch sensor includes a base layer, sensing electrodes arranged on the base layer, a bridge electrode and a connecting portion. The sensing electrode layer includes first sensing electrodes arranged along a first direction parallel to a top surface of the base layer, and second sensing electrodes arranged along a second direction parallel to the top surface of the base layer. The bridge electrode is disposed on the sensing electrodes to electrically connect the first sensing electrodes neighboring in the first direction to each other. The bridge electrode includes an extension portion and expanded portions formed both ends of the extension portion. The expanded portion has a width greater than that of the extension portion. The connecting portion electrically connects the second sensing electrodes neighboring in the second direction and includes at least one etched region.