# US 2020/0403301 A1 · Antenna device and display device comprising the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0403301 A1 - Document ID: US20200403301A1 - Status: Published application - Kind: A1 - Application number: 17/014,062 - Filed: 2020-09-08 - Published: 2020-12-24 - Earliest claimed: 2018-03-06 - Assignees: Dongwoo Fine-Chem Co., Ltd.; Postech Research and Business Development Foundation - Applicants: Dongwoo Fine-Chem Co., Ltd.; Postech Research and Business Development Foundation - Inventors: Han Sub RYU; Yun Seok OH; Yoon Ho HUH; Won Bin HONG - Web page: https://patentgrep.com/patent/US20200403301A1 ## CPC - H01Q 1/364: {using a particular conducting material, e.g. superconductor} - H01Q 1/38: formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142)} - H01Q 1/243: {with built-in antennas} - H01Q 1/40: Radiating elements coated with or embedded in protective material - H01Q 1/42: Housings not intimately mechanically associated with radiating elements, e.g. radome - H01Q 1/46: Electric supply lines or communication lines - H01Q 9/0407: {Substantially flat resonant element parallel to ground plane, e.g. patch antenna (dipole H01Q9/285; monopole H01Q9/40)} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract An antenna device according to an embodiment of the present invention includes a dielectric layer, and an antenna pattern disposed on the dielectric layer. The antenna pattern includes a mesh structure in which unit cells defined by a plurality of electrode lines are assembled. A minimum distance between opposite sides facing each other in the unit cell is from 20 μm to 225 μm, and a line width of the electrode line is from 0.5 μm to 5 μm. A visual recognition of electrodes may be suppressed and a signal sensitivity may be enhanced by using the unit cell structure. ## Claims ### Claim 1 An antenna device, comprising: a dielectric layer; and a first electrode layer comprising an antenna pattern disposed on a top surface of the dielectric layer, the antenna pattern comprising a mesh structure in which unit cells defined by a plurality of electrode lines are assembled, wherein a minimum distance between opposite sides facing each other in the unit cell is from 20 μm to 225 μm, and a line width of the electrode line is from 0.5 μm to 5 μm. ### Claim 2 (depends on 1) The antenna device according to claim 1, wherein a minimum distance between opposite sides facing each other in the unit cell is from 50 μm to 196 μm. ### Claim 3 (depends on 1) The antenna device according to claim 1, wherein the plurality of electrode lines comprise first electrode lines and second electrode lines intersecting each other. ### Claim 4 (depends on 3) The antenna device according to claim 3, wherein the unit cell has a rhombus shape. ### Claim 5 (depends on 1) The antenna device according to claim 1, further comprising a dummy electrode arranged around the antenna pattern. ### Claim 6 (depends on 5) The antenna device according to claim 5, wherein the dummy electrode comprises the same mesh structure as that of the antenna pattern. ### Claim 7 (depends on 6) The antenna device according to claim 6, wherein the antenna pattern and the dummy electrode comprise the same metal. ### Claim 8 (depends on 1) The antenna device according to claim 1, wherein the antenna pattern comprises a radiation pattern, a transmission line connected to the radiation pattern, and a pad electrode connected to an end portion of the transmission line. ### Claim 9 (depends on 8) The antenna device according to claim 8, wherein the radiation pattern comprises the mesh structure, and the pad electrode has a solid structure. ### Claim 10 (depends on 9) The antenna device according to claim 9, wherein the pad electrode is disposed at an upper level from the radiation pattern and the transmission line, and the antenna device further comprises a contact electrically connecting the pad electrode and the transmission line. ### Claim 11 (depends on 1) A display device comprising the antenna device according to claim 1. ### Claim 12 An antenna device, comprising: a dielectric layer; and a first electrode layer on a top surface of the dielectric layer, the first electrode layer comprising first electrode lines and second electrode lines intersecting each other, the first electrode layer having a mesh structure in which unit cells defined by the first electrode lines and second electrode lines are assembled, wherein a minimum distance between opposite sides facing each other in the unit cell is from 20 μm to 225 μm, and a line width of the electrode line is from 0.5 μm to 5 μm. ### Claim 13 (depends on 12) The antenna device of claim 12, further comprising a pad electrode connected to the first electrode layer. ### Claim 14 (depends on 13) The antenna device of claim 13, wherein the first electrode layer comprises a radiation pattern having the mesh structure and a transmission line connected to the radiation pattern; and the pad electrode is connected to an end portion of the transmission line and has a solid structure. ### Claim 15 (depends on 14) The antenna device of claim 14, wherein the pad electrode is disposed at an upper level from the radiation pattern and the transmission line; and ### Claim 16 (depends on 15) The antenna device of claim 15, further comprising: an insulating interlayer formed on the dielectric layer to cover the first electrode layer; and a contact formed through the insulating interlayer to electrically connect the pad electrode and the transmission line, wherein the pad electrode is disposed on the insulating interlayer to be in contact with the contact. ### Claim 17 (depends on 16) The antenna device of claim 16, further comprising: a protective layer on the insulating interlayer to cover the pad electrode. ### Claim 18 (depends on 12) The antenna device of claim 12, further comprising: a second electrode layer on a bottom surface of the dielectric layer. ### Claim 19 (depends on 12) A display device comprising the antenna device according to claim 12.