# US 8,770,105 B2 · Printing apparatus and method for forming thin film pattern using the printing apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,770,105 B2 - Document ID: US8770105B2 - Status: Granted - Kind: B2 - Application number: 12/832,145 - Filed: 2010-07-08 - Published: 2011-01-13 - Granted: 2014-07-08 - Earliest claimed: 2009-07-09 - Assignees: LG Display Co., Ltd. - Applicants: Tae-Hyoung Moon; Seung-Hee Nam - Inventors: Tae-Hyoung Moon; Seung-Hee Nam - Web page: https://patentgrep.com/patent/US8770105B2 ## CPC - B41F 3/36: for intaglio or heliogravure printing (proof-print presses B41F3/28) - B41F 31/08: with ink ejecting means, e.g. pumps, nozzles - B41F 31/18: for inking selected parts of printing formes - B41F 31/28: Spray apparatus - B41M 3/006: {Patterns of chemical products used for a specific purpose, e.g. pesticides, perfumes, adhesive patterns; use of microencapsulated material; Printing on smoking articles} - B41F: PRINTING MACHINES OR PRESSES (manifolding devices or office printing machines B41L) - B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P) ## Abstract The present invention relates to a printing apparatus and method for forming a thin film pattern using the printing apparatus which can form a multi-layered thin film pattern on a substrate. ## Claims ### Claim 1 A printing apparatus comprising: a blanket roller; a first outlet for discharging first printing ink to the blanket roller; a second outlet for discharging second printing ink on the first printing ink in a state viscosity of the first printing ink is higher than a time when the first printing ink is discharged to the blanket roller, thereby forming two layers of the printing ink on the blanket roller, wherein the first and second printing ink are applied in succession on the same area of the blanket roller; a printing plate for simultaneously removing the first and second printing ink from the blanket roller partially to form a conductive thin film on the blanket roller; and a substrate for having the conductive thin film transcribed thereto from the blanket roller, wherein the first and second outlets are formed in the same printing nozzle or different printing nozzles. ### Claim 2 (depends on 1) The printing apparatus as claimed in claim 1, wherein the first outlet is formed in the first printing nozzle and the second outlet is formed in the second printing nozzle, and the substrate and the printing plate are positioned between the first and second printing nozzles. ### Claim 3 (depends on 1) The printing apparatus as claimed in claim 1, wherein the first outlet is formed in the first printing nozzle and the second outlet is formed in the second printing nozzle, and the first and second printing nozzles are formed adjacent to the printing plate, and the first and second outlets are formed perpendicular to each other. ### Claim 4 (depends on 1) The printing apparatus as claimed in claim 1, wherein the first and second outlets are formed in the same nozzle, and the first and second outlet have line widths different from each other. ### Claim 5 (depends on 1) The printing apparatus as claimed in claim 1, wherein the first printing ink consists of metal nano-powder including silver, and a solvent of a low boiling point, and a solvent of a high boiling point, and the solvent of a low boiling point vaporizes before the second printing ink is coated such that viscosity of the first printing ink becomes higher than an initial state when the first printing ink is discharged from the first outlet. ### Claim 6 (depends on 1) The printing apparatus as claimed in claim 1, wherein the second printing ink includes SnO2 which is a substance having adhesive force to the substrate better than the first printing ink. ### Claim 7 A printing apparatus comprising: a blanket roller; a first outlet for discharging first printing ink to the blanket roller, the first printing ink consists of metal nano-powder, a solvent of a low boiling point and a solvent of a high boiling point; a second outlet for discharging second printing ink on the first printing ink in a state viscosity of the first printing ink is higher than a time when the first printing ink is discharged to the blanket roller, thereby forming two layers of the printing ink on the blanket roller, wherein the first and second printing ink are applied in succession on the same area of the blanket roller; a printing plate for simultaneously removing the first and second printing ink from the blanket roller partially to form a conductive thin film on the blanket roller; and a substrate for having the conductive thin film transcribed thereto from the blanket roller, wherein the first and second outlets are formed in the same printing nozzle or different printing nozzles. ### Claim 8 (depends on 7) The printing apparatus as claimed in claim 7, wherein the solvent of a low boiling point vaporizes before the second printing ink is coated such that viscosity of the first printing ink becomes higher than an initial state when the first printing ink is discharged from the first outlet. ### Claim 9 (depends on 7) The printing apparatus as claimed in claim 7, wherein the second printing ink includes SnO2 which is a substance having adhesive force to a substrate better than the first printing ink. ### Claim 10 A method for forming a thin film pattern comprising: providing a printing apparatus having a blanket roller, a first outlet and a second outlet; discharging first printing ink to the blanket roller using the first outlet; discharging second printing ink on the first printing ink using the second outlet in a state viscosity of the first printing ink is higher than a time when the first printing ink is discharged to the blanket roller, thereby forming two layers of the printing ink on the blanket roller, wherein the first and second printing ink are applied in succession on the same area of the blanket roller, forming a conductive thin film on the blanket roller by simultaneously removing the first and second printing ink from the blanket roller partially using on a printing plate; and transcribing the conductive thin film by rolling the blanket roller on a substrate, wherein the first and second outlets are formed in the same printing nozzle or different printing nozzles. ### Claim 11 (depends on 10) The method as claimed in claim 10, wherein the first outlet is formed in the first printing nozzle and the second outlet is formed in the second printing nozzle, and the substrate and the printing plate are positioned between the first and second printing nozzles. ### Claim 12 (depends on 10) The method as claimed in claim 10, wherein the first outlet is formed in the first printing nozzle and the second outlet is formed in the second printing nozzle, and the first and second printing nozzles are formed adjacent to the printing plate, and the first and second outlets are formed perpendicular to each other. ### Claim 13 (depends on 10) The method as claimed in claim 10, wherein the first and second outlets are formed in the same nozzle, and the first and second outlet have line widths different from each other. ### Claim 14 (depends on 10) The method as claimed in claim 10, wherein the first printing ink consists of metal nano-powder including silver, and a solvent of a low boiling point, and a solvent of a high boiling point, and the solvent of a low boiling point vaporizes before the second printing ink is coated such that viscosity of the first printing ink becomes higher than an initial state when the first printing ink is discharged from the first outlet. ### Claim 15 (depends on 10) The method as claimed in claim 10, wherein the second printing ink includes SnO2 which is a substance having adhesive force to the substrate better than the first printing ink.