Prosecution Insights
Last updated: October 01, 2026
Application No. 17/871,169

DISPLAY DEVICE CAPABLE OF PREVENTING DEFECTS ON A SIGNAL LINE AND METHOD OF FABRICATING THE SAME

Non-Final OA §103
Filed
Jul 22, 2022
Priority
Dec 27, 2021 — RE 10-2021-0188815
Examiner
ZHU, SHENG-BAI
Art Unit
2897
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Samsung Display Co., Ltd.
OA Round
5 (Non-Final)
62%
Grant Probability
Moderate
5-6
OA Rounds
0m
Est. Remaining
68%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allowance Rate
448 granted / 719 resolved
-5.7% vs TC avg
Moderate +6% lift
Without
With
+6.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
65 currently pending
Career history
785
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
69.7%
+29.7% vs TC avg
§102
22.4%
-17.6% vs TC avg
§112
6.8%
-33.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 719 resolved cases

Office Action

§103
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Detailed Action Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 6/16/2026 has been entered. Remarks Newly submitted claim amendments directed to an invention that is independent or distinct from the invention originally claimed for the following reasons: the method as claimed can be used to make another and materially different device, e.g., the device claimed does not require the claimed order to form the claimed layers. Since applicant has received an action on the merits for the originally presented invention, this invention has been constructively elected by original presentation for prosecution on the merits. Accordingly, the claim amendment related to the process order to form the claimed layers is not entered as being directed to a non-elected invention. See 37 CFR 1.142(b) and MPEP § 821.03. The Applicant cannot file an RCE on claims independent of the elected invention. Amendments that expand the scope to a different invention after an election and action on merits are generally not allowed. Claim Rejections – 35 U.S.C. 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 11-13, 15 and 17-20 rejected under 35 U.S.C. 103 as being unpatentable over Lee (U.S. Patent Pub. No. 2023/0005962) of record, in view of Kaneko (CN 101359139) of record. Regarding Claim 11 FIG. 7 of Lee discloses a method of fabricating a display device comprising: preparing a base layer (111) including a first surface and a second surface that is opposite to the first surface; forming a planarization layer (112+118) directly on the second surface; forming a pixel circuit layer (120) on a first surface; forming a display element layer (130) on the pixel circuit layer on the first surface; forming a first insulating layer (117) directly on the planarization layer; and forming a rear line (180B) and a rear pad electrode (between 180B and 151) directly on the first insulating layer; forming a second insulating layer (172) disposed on the rear line and the rear pad electrode, wherein the planarization layer includes organic material [0078], wherein the planarization layer is disposed to be spaced apart from the rear pad electrode (separated by 190B), and wherein the second insulating layer covers the rear pad electrode such that at least a portion of an upper surface of the rear pad electrode is exposed. Lee is silent with respect to “the rear pad electrode covers side walls of the rear line in a direction perpendicular to a direction the rear line extending”. FIG. 33E of Kaneko discloses a similar method of fabricating a display device, comprising a rear pad electrode (41) disposed on the rear line (38) and covering side walls of the rear line in a direction perpendicular to a direction the rear line extending. It would have been obvious to one of ordinary skill in the art before the effective filing of the claimed invention to modify the device of Lee, as taught by Kaneko. The ordinary artisan would have been motivated to modify Lee in the above manner for purpose of reducing contact resistance. Regarding Claim 12 FIG. 7 of Lee discloses forming a pixel circuit layer (120) disposed on the first surface; and a display element layer (130) disposed on the pixel circuit layer. Regarding Claim 13 Kaneko discloses the first insulating layer includes transparent inorganic insulating material (silicon nitride or silicon oxide). Regarding Claim 15 FIG. 33E of Kaneko discloses the rear pad electrode includes transparent conductive oxide (ITO or IZO). Regarding Claim 17 FIG. 33E of Kaneko discloses the rear line extends on the second surface in a first direction. Regarding Claim 18 FIG. 33E of Kaneko discloses the rear pad electrode covers the rear line such that the rear pad electrode overlaps at least a portion of the rear line. Regarding Claim 19 FIG. 7 of Lee discloses forming the pixel circuit layer comprises forming a first transistor (120) on the first surface. Regarding Claim 20 FIG. 7 of Lee discloses forming the display element layer comprises disposing a light emitting element (130) on the pixel circuit layer. Claims 11 and 14 rejected under 35 U.S.C. 103 as being unpatentable over Kajiyama (U.S. Patent Pub. No. 2018/0138260) of record, in view of Tsuruoka (U.S. Patent Pub. No. 2015/0187807), in view of Ahn (U.S. Patent Pub. No. 2017/0176798) of record. Regarding Claim 11 FIG. 3 of Kajiyama discloses a method of fabricating a display device comprising: preparing a base layer (61) including a first surface and a second surface that is opposite to the first surface; forming a planarization layer (72) directly on the second surface; forming a pixel circuit layer (10) on a first surface; forming a display element layer (41) on the pixel circuit layer on the first surface; forming a first insulating layer (61) directly on the planarization layer; and forming a rear line (81) and a rear pad electrode directly on the first insulating layer, wherein the planarization layer is formed of organic material [0031], wherein the planarization layer is disposed to be spaced apart from the rear pad electrode. FIG. 5 of Tsuruoka discloses a similar display device, comprising a first insulating layer (2) disposed on the second surface; a rear line (12) disposed between the first insulating layer and the second insulating layer (13) on the first insulating layer; a rear line (12) directly disposed on the first insulating layer; and a rear pad electrode (14) disposed on the rear line, wherein the second insulating layer covers the rear pad electrode such that at least a portion of an upper surface of the rear pad electrode is exposed. It would have been obvious to one of ordinary skill in the art before the effective filing of the claimed invention to modify the device of Kajiyama, as taught by Tsuruoka. The ordinary artisan would have been motivated to modify Kajiyama in the above manner for purpose of improving reliability of the device ([0005] of Tsuruoka). Kajiyama as modified by Tsuruoka is silent with respect to “a rear pad electrode disposed between the first insulating layer and the second insulating layer on the rear line and covering side walls of the rear line in a direction perpendicular to a direction the rear line extending”. FIG. 19 of Yang discloses a similar display device, comprising a first insulating layer (INS1) disposed on the second surface; a rear line (RL) disposed between the first insulating layer and the second insulating layer (INS2) on the first insulating layer; and a rear pad electrode (RPD) disposed on the rear line and covering side walls of the rear line in a direction perpendicular to a direction the rear line extending, wherein the second insulating layer covers the rear pad electrode such that at least a portion of an upper surface of the rear pad electrode is exposed. FIG. 7 of Ahn discloses a similar display device, comprising a first insulating layer (GI) disposed on the second surface; a rear line (124) disposed between the first insulating layer and the second insulating layer on the first insulating layer; and a rear pad electrode (128) disposed on the rear line and covering side walls of the rear line in a direction perpendicular to a direction the rear line extending, wherein the second insulating layer (PAS2) covers the rear pad electrode such that at least a portion of an upper surface of the rear pad electrode is exposed. It would have been obvious to one of ordinary skill in the art before the effective filing of the claimed invention to modify the device of Kajiyama, as taught by Ahn. The ordinary artisan would have been motivated to modify Kajiyama in the above manner for purpose of forming transparent electrode with improved corrosion resistance ([0082] of Ahn). Regarding Claim 14 FIG. 3 of Kajiyama discloses a similar display device, wherein the base layer comprises a rigid substrate [0032]. Pertinent Art Tsuruoka (U.S. Patent Pub. No. 2015/0187807) discloses a base layer including a first surface and a second surface that is opposite to the first surface; a first insulating layer disposed on the second surface; a planarization layer disposed between the second surface and the first insulating layer; a rear line disposed on the first insulating layer; and a rear pad electrode disposed on the rear line. Okada (KR 20070049211) discloses the base layer comprises a rigid substrate (glass). Mitarai (U.S. Patent Pub. No. 2015/0021081) discloses a base layer including a first surface and a second surface that is opposite to the first surface; a rear line on the second surface; a rear pad electrode on the rear line; a pixel circuit layer on the first surface; a display element layer on the pixel circuit layer, wherein the pixel circuit layer includes a first transistor disposed on the first surface. KR 20050092934 discloses a second insulating layer (227) disposed on the first insulating layer (200b); a rear line (225b) disposed between the first insulating layer and the second insulating layer on the first insulating layer; and a rear pad electrode disposed on the rear line. Cheng (CN 112750883) discloses a planarization layer (13) disposed between the second surface and the first insulating layer (14), wherein the planarization layer includes organic material (PI). Imamura (CN 101140942) discloses an organic planarization layer. US 20080203392. Response to Arguments Applicant’s arguments with respect to Claim 11 have been considered but are moot because the arguments do not apply to any of the references being used in the current rejection. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SHENG-BAI ZHU whose telephone number is (571)270-3904. The examiner can normally be reached on 11am – 7pm EST. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Chad Dicke can be reached on (571)270-7996. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /SHENG-BAI ZHU/Primary Examiner, Art Unit 2897
Read full office action

Prosecution Timeline

Show 9 earlier events
Feb 05, 2026
Examiner Interview Summary
Feb 05, 2026
Applicant Interview (Telephonic)
Feb 27, 2026
Response Filed
Mar 24, 2026
Final Rejection mailed — §103
May 26, 2026
Response after Non-Final Action
Jun 16, 2026
Request for Continued Examination
Jun 22, 2026
Response after Non-Final Action
Sep 01, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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DISPLAY DEVICE INCLUDING FIRST AND SECOND CAPACITORS AND A STORAGE CAPACITOR
2y 2m to grant Granted Sep 15, 2026
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Patent 12707807
DISPLAY DEVICE COMPRISING ENCAPSULATION STRUCTURE AND METHOD OF MANUFACTURING THE SAME
6y 0m to grant Granted Aug 11, 2026
Patent 12681246
ELECTRONIC PACKAGE
4y 1m to grant Granted Jul 14, 2026
Patent 12660444
DISPLAY APPARATUS
3y 3m to grant Granted Jun 16, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
62%
Grant Probability
68%
With Interview (+6.0%)
2y 9m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 719 resolved cases by this examiner. Grant probability derived from career allowance rate.

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