Prosecution Insights
Last updated: April 19, 2026
Application No. 18/354,896

PIXEL-DEFINING LAYER AND DISPLAY DEVICE INCLUDING THE SAME

Non-Final OA §102
Filed
Jul 19, 2023
Examiner
SENGDARA, VONGSAVANH
Art Unit
2893
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Samsung Display Co., Ltd.
OA Round
1 (Non-Final)
71%
Grant Probability
Favorable
1-2
OA Rounds
3y 5m
To Grant
90%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allow Rate
651 granted / 914 resolved
+3.2% vs TC avg
Strong +19% interview lift
Without
With
+19.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
73 currently pending
Career history
987
Total Applications
across all art units

Statute-Specific Performance

§101
1.8%
-38.2% vs TC avg
§103
48.7%
+8.7% vs TC avg
§102
30.5%
-9.5% vs TC avg
§112
17.5%
-22.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 914 resolved cases

Office Action

§102
DETAILED ACTION 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 . Election/Restrictions Applicant’s election without traverse of Species 1- Fig 3, encompassing Claims 1, 2, 5-16, 17 and 18 in the reply filed on 10/29/2025 is acknowledged. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1, 2, 5-16, 17 and 18 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by DU et al. 20220399423. PNG media_image1.png 568 822 media_image1.png Greyscale PNG media_image2.png 436 835 media_image2.png Greyscale Regarding claim 1, figs. 1-4F of Du discloses a display device comprising: a substrate 101; a first wiring layer 202 on the substrate, the first wiring layer comprising a first wire 221 and a second wire Ca each extending along the substrate, along a first direction (D2 in fig. 4E and into the page – fig. 4F), the first wire and the second wire spaced apart from each other along a second direction (D1 in fig. 4E and across the page in fig. 4F) crossing the first direction; a planarization layer 107 on the first wiring layer; a first pixel electrode 134a which is on the planarization layer; a pixel-defining layer 430 on the planarization layer and overlapping the first pixel electrode; and a first pixel opening 401/4012 which is defined in the pixel-defining layer and exposes the first pixel electrode to outside the pixel-defining layer, wherein the pixel-defining layer comprises: first edges which define the first pixel opening, and among the first edges of the pixel-defining layer: a 1-1 edge and a 1-2 edge each extends along the first direction, the 1-1 edge and the 1-2 edge are spaced apart from each other along the second direction, and the 1-1 edge overlaps the first wire 221. PNG media_image3.png 370 514 media_image3.png Greyscale PNG media_image4.png 588 1019 media_image4.png Greyscale Regarding claim 17, figs. 1-4F of Du discloses a display device comprising: a substrate 101; a pixel electrode 134a of a light-emitting element 120, on the substrate; a pixel-defining layer 430 which overlaps the pixel electrode; a pixel opening 401/4012 which is defined by a plurality of edges (4 edges – fig. 4E) of the pixel-defining layer, the pixel opening exposing the pixel electrode 134a to outside the pixel-defining layer; a wiring layer 202 between the substrate and the pixel electrode, the wiring layer comprising a plurality of wires (221/Ca) each extending along the substrate in a first direction D2 (fig. 4B), the plurality of wires being spaced apart from each other along a second direction crossing the first direction (D1); and a planarization layer 107 which is between the wiring layer and the pixel electrode, and between the wiring layer and the pixel-defining layer; wherein among the plurality of edges of the pixel-defining layer which define the pixel opening: a first edge (as labeled by examiner above) extends along the first direction, and a second edge (as labeled by examiner above) extends along the second direction and is connected to the first edge at a corner of the pixel opening (as labeled by examiner above), and the plurality of wires (221/Ca) of the wiring layer overlap the second edge of the pixel-defining layer to define an overlapping area of the second edge, together with a non-overlapping area of the second edge which is between the plurality of first wires along the second direction. Regarding claim 2, figs. 4E and 4F of Du discloses wherein the 1-2 edge overlaps the second wire. Regarding claim 5, figs. 4B/4F of Du discloses wherein the first wiring layer further comprises: a third wire 240 and a fourth wire 240/VT (on the top of fig. 4E) each extending along the substrate along the first direction, and the first wire, the second wire, the third wire and the fourth wire in order along the second direction and spaced apart from each other along the second direction. Regarding claim 6, fig. 4E of Du discloses further comprising a second pixel electrode 134b which is on the planarization layer and is spaced apart from the first pixel electrode 134a along the second direction D1, wherein the pixel-defining layer overlaps the second pixel electrode, a second pixel opening 401/4013 is defined in the pixel-defining layer which exposes the second pixel electrode to outside the pixel-defining layer, and the pixel-defining layer further comprises: second edges which define the second pixel opening, and among the second edges of the pixel-defining layer, a 2-1 edge extends along the first direction and overlaps the third wire 240/VT. Regarding claim 7, fig. 4E of Du discloses wherein among the second edges of the pixel-defining layer, a 2-2 edge extends along the first direction, is spaced apart from the 2-1 edge and overlaps the fourth wire. Regarding claim 8, fig. 4E of Du discloses further comprising a second pixel electrode 134b which is on the planarization layer and is spaced apart from the first pixel electrode 134a, wherein the pixel-defining layer overlaps the second pixel electrode, a second pixel opening is defined in the pixel-defining layer which exposes the second pixel electrode to outside the pixel-defining layer, and the pixel-defining layer further comprises: second edges which define the second pixel opening, and among the second edges of the pixel-defining layer: a 2-1 edge and a 2-2 edge each extend along the first direction, the 2-1 edge and the 2-2 edge are spaced apart from each other along the second direction with the third wire 240 therebetween, and the 2-1 edge and the 2-2 edge are spaced apart from the third wire along the second direction. Regarding claim 9, fig. 4E of Du discloses wherein the fourth wire is between the 2-1 edge and the 2-2 edge along the second direction, and the fourth wire (240 on top of fig. 4B) is spaced apart from each of the 2-1 edge, the 2-2 edge and the third wire along the second direction. Regarding claim 10 (see rejection of claim 6 with the word second equivalent to the word third), Du discloses further comprising a third pixel electrode which is on the planarization layer and is spaced apart from the first pixel electrode along the first direction, wherein the pixel-defining layer overlaps the third pixel electrode, a third pixel opening is defined in the pixel-defining layer which exposes the third pixel electrode to outside the pixel-defining layer, and the pixel-defining layer further comprises: third edges which define the third pixel opening, and among the third edges of the pixel-defining layer a 3-1 edge extends along the first direction and overlaps the first wire. Regarding claim 11 (see rejection of claim 6 with the word second equivalent to the word third), Du discloses wherein among the third edges of the pixel-defining layer, a 3-2 edge extends along the first direction, is spaced apart from the 3-1 edge and overlaps the second wire. Regarding claim 12, figs. 4A/F of Du discloses further comprising: a second wiring layer 201 on the substrate, the second wiring layer comprising a fifth wire 210 and a sixth wire 230 each extending along the substrate along the second direction D1, the fifth wire and the second wire spaced apart from each other along the first direction D2; an organic insulating layer 106 and an interlayer insulating layer 103, on the substrate; and in order from the substrate, along a thickness direction of the display device, the interlayer insulating layer 103, the second wiring layer, the organic insulating layer 106, the first wiring layer 203 and the planarization layer 107. PNG media_image5.png 595 929 media_image5.png Greyscale Regarding claim 13, wherein among the first edges of the pixel-defining layer which define the first pixel opening: a 1-3 edge and a 1-4 edge each extend along the second direction, the 1-3 edge and the 1-4 edge are spaced apart from each other along the first direction, and the 1-3 edge overlaps the fifth wire 210. Regarding claim 14, fig. 4E of Du discloses wherein the 1-4 edge overlaps the sixth wire (see edges overlap). Regarding claim 15, Du discloses wherein the fifth wire is between the 1-3 edge and the 1-4 edge along the first direction, and the fifth wire is spaced apart (vertical spaced) from each of the 1-3 edge and the 1-4 edge along the first direction (vertical is along the first direction). Regarding claim 16, fig. 4E of Du discloses wherein the sixth wire 230 is between the 1-3 edge and the 1-4 edge along the first direction (see fig. 4F with 230 below which is between), and the sixth wire is spaced apart (vertical spaced) from each of the 1-3 edge, the 1-4 edge, and the fifth wire along the first direction (vertical is along the first direction). Regarding claim 18, fig. 4E of Du discloses wherein the overlapping area is further defined at the corner of the pixel opening and along the first edge. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to VONGSAVANH SENGDARA whose telephone number is (571)270-5770. The examiner can normally be reached 9AM-6PM EST. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Sue Purvis can be reached on (571)272-1236. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /VONGSAVANH SENGDARA/Primary Examiner, Art Unit 2893
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Prosecution Timeline

Jul 19, 2023
Application Filed
Jan 30, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
71%
Grant Probability
90%
With Interview (+19.1%)
3y 5m
Median Time to Grant
Low
PTA Risk
Based on 914 resolved cases by this examiner. Grant probability derived from career allow rate.

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