USOO9640762B2

(12) United States Patent (10) Patent No.: US 9,640,762 B2 Goto et al. (45) Date of Patent: May 2, 2017

(54) METHOD FOR PRODUCING TRANSPARENT (58) Field of Classification Search ELECTRODE AND ORGANIC EL ELEMENT CPC ...... H01L 51/0021; H01L 51/5215 (71) Applicant: , Inc., Tokyo (JP) (Continued) (72) Inventors: Masaki Goto, Hino (JP); Akihiko (56) References Cited Takeda, Sagamihara (JP); Toshiyuki U.S. PATENT DOCUMENTS Matsumura, Sagamihara (JP) M 6,710,306 B2 * 3/2004 Hahn ...... CO3B 29, 12 (73) Assignee: , INC., Tokyo 219,388 (JP) 2008/0129.193 A1* 6/2008 Asabe ...... HOSB 33/28 313,504 (*) Notice: Subject to any disclaimer, the term of this (Continued) patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days. FOREIGN PATENT DOCUMENTS (21) Appl. No.: 14/646,981 JP HO2145672 A 6/1990 JP HO680442. A 3, 1994 (22) PCT Filed: Oct. 3, 2013 (Continued) (86). PCT No.: PCT/UP2013/076921 (c)(1) OTHER PUBLICATIONS S 371 (c)(1), (2) Date: May 22, 2015 English Translation of JP2012155887(A).* Continued (87) PCT Pub. No.: WO2014/083938 ( ) PCT Pub. Date: Jun. 5, 2014 Primary Examiner — Christine Enad (74) Attorney, Agent, or Firm — Lucas & Mercanti, LLP (65) Prior Publication Data US 2015/0311443 A1 Oct. 29, 2015 (57) ABSTRACT A method for producing a transparent electrode includes a (30) Foreign Application Priority Data forming step, an applying step and an irradiating step. The forming step is a step of forming a conductive metal layer on Nov. 28, 2012 (JP) ...... 2012-259838 a transparent resin Substrate. The applying step is a step of (51) Int. Cl applying a composition containing a conductive polymer iotL sI/00 (2006.01) and a nonconductive polymer over the transparent resin Substrate and the conductive metal layer so as to form a HOIL 5/44 (2006.01) conductive polymer layer. The irradiating- step is a step of (Continued) irradiating the conductive polymer layer with an ray (52) U.S. Cl. having a ratio of spectral radiance at a wavelength of 5.8 um CPC ...... HOIL 51/0021 (2013.01); HOIL 51/0022 to spectral radiance at a wavelength of 3.0 um of 5% or less. (2013.01); HOIL 51/5215 (2013.01); (Continued) 2 Claims, 7 Drawing Sheets

SS US 9,640,762 B2 Page 2

(51) Int. C. JP HO864132 A 3, 1996 HOIL 5/52 (2006.01) JP 2004165140 A 6, 2004 H05B 3.3/10 (2006.01) JP 2006337545. A 12/2006 JP 4790092 B1 10, 2011 (52) Hesia (2006.01) JP 2012.155887 A 8, 2012 AV e. we JP WO 2013 047660 A1 * 4, 2013 ...... HOL 51/445 CPC ...... H05B 33/10 (2013.01); H05B 33/28 (2013.01); HOIL 51/5234 (2013.01) (58) Field of Classification Search OTHER PUBLICATIONS USPC ...... 257/40 English Translation of WO2011/136041 A1.* See application file for complete search history. The International Preliminary Report on Patentability dated Jun. 2, (56) References Cited 2015 from the corresponding International Patent Application No. PCT/JP2013,076921. U.S. PATENT DOCUMENTS English translation of the International Preliminary Report on Patentability dated Jun. 2, 2015 from the corresponding Interna 2009,0282949 A1* 11, 2009 Seals ...... B23K 35,325 tional Patent Application No. PCT/JP2013/076921. 75/3O2 The Written Opinion of the International Searching Authority dated 2010/0255323 A1* 10, 2010 Nakamura ...... HO1B 1/22 Oct. 29, 2013 from the corresponding International Patent Appli 428,457 cation No. PCT, JP2013,076921. 2010/0307791 A1* 12, 2010 Kim ...... HO1B 1.128 174,126.1 English translation of the Written Opinion of the International 2012/0328272 A1* 12/2012 Fujita ...... F26B 3.30 Searching Authority dated Oct. 29, 2013 from the corresponding 392/416 International Patent Application No. PCT/JP2013/076921. International Search Report dated Oct. 29, 2013 for Application No. FOREIGN PATENT DOCUMENTS PCT/JP2013,076921. JP HO6273964. A 9, 1994 * cited by examiner U.S. Patent May 2, 2017 Sheet 1 of 7 US 9,640,76