公开(公告)号：US20180253170A1

公开(公告)日：2018-09-06

申请号：US15911685

申请日：2018-03-05

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Sung Jin NOH ,  Min Soo SEO ,  Byung Jin CHOI ,  Cheol Hun LEE ,  Eung Goo CHO

IPC: G06F3/044 ,  C23C14/08 ,  H05K3/04

CPC classification number: G06F3/044 ,  C23C14/086 ,  G02F1/13338 ,  G06F2203/04111 ,  G06F2203/04112 ,  H05K3/046 ,  H05K2201/0108

Abstract: A touch sensor includes a base layer, a plurality of sensing electrodes and a conductive capping pattern covering each of the sensing electrodes. Each of the sensing electrodes includes a first transparent conductive oxide pattern, a metal pattern and a second transparent conductive oxide pattern which are sequentially stacked on the base layer.

公开(公告)号：US20180188852A1

公开(公告)日：2018-07-05

申请号：US15859976

申请日：2018-01-02

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Byung Jin CHOI ,  Sung Jin NOH ,  Min Soo SEO ,  Cheol Hun LEE ,  Eung Goo CHO

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G06F2203/04102 ,  G06F2203/04103 ,  G06F2203/04111 ,  G06F2203/04112 ,  H01L27/323

Abstract: A touch sensing electrode structure includes an electrode line and connecting electrodes. The electrode line extends in a first direction as a zigzag line shape, and a plurality of the electrode lines are arranged along a second direction that crosses the first direction. The connecting electrodes extend in the second direction and connect neighboring ones of the electrode lines to form a plurality of concave polygonal patterns.

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：US20220210923A1

公开(公告)日：2022-06-30

申请号：US17554144

申请日：2021-12-17

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Ki Joon PARK ,  Sung Jin NOH ,  Jungu LEE

IPC: H05K3/00 ,  H05K3/28

Abstract: A circuit board includes a base layer, an electrode layer formed on the base layer, a passivation layer formed on the electrode layer while opening a part of the electrode layer, and a surface treatment layer formed on the open surface of the electrode layer. The surface treatment layer may contain 70 to 40% of copper and 30 to 60% of nickel.

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.

公开(公告)号：US20180335865A1

公开(公告)日：2018-11-22

申请号：US15983203

申请日：2018-05-18

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Byung Jin CHOI ,  Sung Jin NOH ,  Woo Hyun BAE ,  Min Soo SEO ,  Cheol Hun LEE ,  Eung Goo CHO

IPC: G06F3/041

Abstract: A touch sensing electrode structure includes sensing electrodes, each of which including a plurality of unit patterns, and traces electrically connected to the sensing electrodes. The traces include at least two trace lines and trace bridges connecting the at least two trace lines to each other. An electrode visibility due to a pattern deviation is reduced and a reliability of the trace is improved by the trace bridge.

公开(公告)号：US20230044317A1

公开(公告)日：2023-02-09

申请号：US17883753

申请日：2022-08-09

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Cheol Hun LEE ,  Do Hyoung KWON ,  Sung Jin NOH

IPC: G02F1/13357 ,  G02F1/1335

Abstract: A circuit board for a light-emitting diode assembly includes a substrate layer, a dimming zone column disposed on one surface of the substrate layer, the dimming zone column including dimming zones, each of the dimming zones including a predetermined number of LED landing pads. The dimming zones includes a predetermined number of first dimming zones and a predetermined number of second dimming zones, a first common wiring commonly connected to the first dimming zones and disposed at a first lateral side in a row direction of the dimming zone column, a second common wiring connected to the second dimming zones and disposed at a second lateral side in the row direction opposite to the first lateral side of the dimming zone column, and an individual wiring connected to each of the dimming zones.