公开(公告)号：US20230058014A1

公开(公告)日：2023-02-23

申请号：US17981580

申请日：2022-11-07

Applicant: DONGWOO FINE-CHEM CO., LTD. ,  POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Byung Jin CHOI ,  Ho Dong YOON ,  Won Hee LEE ,  Won Bin HONG

IPC: H01Q9/04 ,  H01Q1/48 ,  H01Q21/08 ,  H01Q1/24

Abstract: An antenna package according to an embodiment includes an antenna unit, and a circuit board electrically connected to the antenna unit. The circuit board may include a core layer, a signal transmission wiring disposed on one surface of the core layer, the signal transmission wiring having one end portion connected to the antenna unit, a ground layer disposed on an opposite surface facing the one surface of the core layer, and a first via structure formed through the core layer and arranged around the one end portion of the signa transmission wiring to be in contact with the ground layer.

公开(公告)号：US20220312594A1

公开(公告)日：2022-09-29

申请号：US17838374

申请日：2022-06-13

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Dong Pil PARK ,  Byung Jin CHOI ,  Na Yeon KIM

IPC: H05K1/18 ,  H05K1/02

Abstract: A printed circuit board according to an embodiment of the present invention includes a core layer and a circuit wiring layer disposed on a top surface of the core layer. The core layer is spaced apart from the circuit wiring layer and includes through-holes formed around the circuit wiring layer. Flexibility of the printed circuit board may be enhanced by the through-hole to obtain bending stability.

公开(公告)号：US20220140482A1

公开(公告)日：2022-05-05

申请号：US17518780

申请日：2021-11-04

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Won Hee LEE ,  Jae Hyun LEE ,  Byung Jin CHOI

IPC: H01Q9/04 ,  H05K1/02

Abstract: An antenna element according to an embodiment includes a radiation body formed in a mesh structure, a first transmission line and a second transmission line connected to the radiation body and formed in a mesh structure, and a first signal pad and a second signal pad which are respectively connected to the first transmission line and the second transmission line and are formed in a bent shape with a solid structure.

公开(公告)号：US20220137741A1

公开(公告)日：2022-05-05

申请号：US17577784

申请日：2022-01-18

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Byung Jin CHOI ,  Dong Pil PARK ,  Won Hee LEE

IPC: G06F3/041 ,  G06F1/16

Abstract: An electrode structure combined with an antenna according to an embodiment of the present disclosure includes a substrate layer, sensing electrodes, a bridge electrode and an antenna unit. The sensing electrodes are arranged on the substrate layer, and include first sensing electrodes arranged along a first direction parallel to a top surface of the substrate layer, and second sensing electrodes arranged along a second direction parallel to the top surface of the substrate layer and intersecting the first direction. The bridge electrode connects the first sensing electrodes neighboring in the first direction. The antenna unit is disposed at the same layer as that of the bridge electrode, and includes a radiator overlapping the sensing electrodes in a planar view.

公开(公告)号：US20220131279A1

公开(公告)日：2022-04-28

申请号：US17508055

申请日：2021-10-22

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Young Ju KIM ,  Dong Pil PARK ,  Byung Jin CHOI ,  Han Sub RYU ,  Ho Dong YOON

IPC: H01Q21/24 ,  H01Q21/08 ,  H01Q1/38

Abstract: An antenna package according to an exemplary embodiment of the present invention includes a first antenna device which includes a first antenna unit including a first radiator, a second antenna device which includes a second antenna unit including a second radiator whose polarization direction is perpendicular to the first radiator, a first circuit board electrically connected with the first antenna unit, a second circuit board electrically connected with the second antenna unit, and a third circuit board on which at least one antenna driving integrated circuit (IC) chip electrically and independently connected to the first circuit board and the second circuit board is mounted. By supplying power to two antenna devices having different polarization directions, respectively, signal interference and signal loss may be prevented, and dual polarization may be implemented.

公开(公告)号：US20190064964A1

公开(公告)日：2019-02-28

申请号：US16106979

申请日：2018-08-21

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Byung Jin CHOI ,  DongOk KIM

IPC: G06F3/044

Abstract: A touch sensor includes a substrate layer, a plurality of sensing electrodes on the substrate layer, and a dummy line between the sensing electrodes, the dummy line extending along a boundary of the sensing electrode. Electrode visibility is reduced by the dummy line, and touch sensitivity of the touch sensor is also improved.

公开(公告)号：US20180350885A1

公开(公告)日：2018-12-06

申请号：US15992367

申请日：2018-05-30

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Byung Jin CHOI ,  Woo Hyun BAE

IPC: H01L27/32 ,  G06F3/041 ,  H01L51/50 ,  H01L51/52

CPC classification number: H01L27/323 ,  G06F3/0412 ,  G06F3/044 ,  H01L51/5012 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5253

Abstract: An OLED-integrated touch sensor includes an organic light emitting diode (OLED) device, and a touch electrode on a surface of the OLED device. The touch electrode includes a driving electrode formed on one surface of a base layer and a receiving electrode formed on an opposing surface of the base layer relative to the one surface. The touch electrode is combined with the OLED device such that the driving electrode faces the surface of the OLED device.

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：US20180239478A1

公开(公告)日：2018-08-23

申请号：US15896601

申请日：2018-02-14

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Seung Jin CHAE ,  Yoonho HUH ,  Byung Jin CHOI

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/041 ,  G06F3/044 ,  G06F3/0441 ,  G06F3/0442 ,  G06F3/046 ,  G06F2203/04102 ,  G06F2203/04103 ,  G06F2203/04114

Abstract: A flexible digitizer comprising a flexible substrate and a first and a second electrodes having thicknesses of 2000 Å to 1 μm is provided. The digitizer according to the present invention has sufficient flex resistance for application to a flexible display device with superior electrical characteristics and visibility.

公开(公告)号：US20180164913A1

公开(公告)日：2018-06-14

申请号：US15894371

申请日：2018-02-12

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Byung Jin CHOI ,  Dong Hwan KIM

IPC: G06F3/041 ,  H05K1/11 ,  H05K1/02

CPC classification number: G06F3/041 ,  G02F1/1303 ,  G02F1/13338 ,  G02F2201/503 ,  G06F3/0416 ,  G06F2203/04102 ,  G06F2203/04103 ,  H05K1/0271 ,  H05K1/111 ,  H05K1/115 ,  H05K2201/09609 ,  H05K2201/10128 ,  H05K2201/10151

Abstract: An electrode connection unit is to be electrically connected with electrode terminals. The electrode connection unit includes a metallic core part having a plurality of first holes therein and a conductive nonmetallic coating layer on the metallic core part. An image display device and a touch screen panel include the electrode connection unit.