Prosecution Insights
Last updated: August 17, 2026
Application No. 17/980,181

Organic Light Emitting Display Device

Final Rejection §103
Filed
Nov 03, 2022
Priority
Nov 11, 2021 — RE 10-2021-0154766
Examiner
TRAN, TAN N
Art Unit
2812
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
LG Display Co., Ltd.
OA Round
4 (Final)
87%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allowance Rate
964 granted / 1111 resolved
+18.8% vs TC avg
Moderate +10% lift
Without
With
+10.0%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
31 currently pending
Career history
1153
Total Applications
across all art units

Statute-Specific Performance

§101
1.8%
-38.2% vs TC avg
§103
50.4%
+10.4% vs TC avg
§102
33.7%
-6.3% vs TC avg
§112
7.7%
-32.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1111 resolved cases

Office Action

§103
DETAILED ACTION Claim Rejections - 35 USC § 103 1. 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. 2. Claim(s) 25 is/are rejected under 35 U.S.C. 103 as being unpatentable over Seo et al. (10446638) in view of Moon et al. (11,696,470). With regard to claim 25, Seo et al. disclose a display device (for example, see fig. 1) comprising: a substrate (100) including a display area (an area including transistors T1, T2); a driving transistor (T1) in the display area, the driving transistor including a first semiconductor layer (S1, C1, D1) having a first S-factor (for example, see column 4, lines 37 – 43); a switching transistor (T2) in the display area, the switching transistor (T2) including a second semiconductor layer having a second S-factor (for example, see column 4, lines 37 – 43); and a light emitting device (OLED) in the display area, wherein the first S-factor is greater than the second S-factor (for example, see column 4, lines 37 – 43 discloses the S-factor of the driving transistor T1 is relatively large, and the S-factor of the switching transistor T2 is relatively small. The differences in S-factors may be formed by implementing a difference in the surface roughness between the semiconductor layers of the driving transistor T1 and the switching transistor T2. Therefore, the first semiconductor layer of the driving transistor T1 inherently has a S-factor that is greater than a S-factor of the second semiconductor layer). PNG media_image1.png 458 708 media_image1.png Greyscale Seo et al. do not clearly disclose the first and second semiconductor layers are oxide semiconductor layers. However, Moon et al. disclose the first and second semiconductor layers (A1, A2) are oxide semiconductor layers (for example, see column 9, lines 41 – 49, fig. 10). PNG media_image2.png 562 768 media_image2.png Greyscale Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have modified the Seo et al.’s device to replace the first and second semiconductor layers are oxide semiconductor layers as taught by Moon et al. in order to enhance a high mobility efficiency of the semiconductor device for enhancing a stability operation of the semiconductor device, as is known to one of ordinary skill in the art. Allowable Subject Matter 3. Claims 1 - 17 are allowable over the prior art of record, because none of these references disclose or can be combined to yield the claimed invention such as a surface treating layer including a pattern of protrusions is on a surface of the first oxide semiconductor layer of the driving thin film transistor and the second oxide semiconductor layer of the switching thin film transistor lacks the surface treating layer on a surface of the second oxide semiconductor layer, and wherein the first oxide semiconductor layer has a S-factor that is greater than a S-factor of the second oxide semiconductor layer by the surface treating layer as recited in claim 1. 4. Claims 18, 21 - 24 are allowable over the prior art of record, because none of these references disclose or can be combined to yield the claimed invention such as the first transistor including a first semiconductor layer with a pattern of protrusions on at least a portion of a surface of the first semiconductor layer; wherein the second semiconductor layer lacks the pattern of protrusions on any surface of the second semiconductor layer, and wherein the first semiconductor layer with the pattern of protrusions has a S-factor that is greater than a S-factor of the second semiconductor layer, wherein the first semiconductor layer and the second semiconductor layer are oxide semiconductor layers as recited in claim 18. Response to Arguments 5. Applicant’s arguments filed 07/06/26 have been fully considered but they are not persuasive. It is argued, at page of the remarks, that “there is no motivation for one of ordinary skill to combine Seo and Moon and arrive at the claimed invention with reasonable expectation of success”. However, in response to applicant's argument that there is no suggestion to combine the references, the examiner recognizes that obviousness can only be established by combining or modifying the teachings of the prior art to produce the claimed invention where there is some teaching, suggestion, or motivation to do so found either in the references themselves or in the knowledge generally available to one of ordinary skill in the art. See In re Fine, 837 F.d. 1071, 5 USPQ2d 1596 (Fed. Cir. 1988) and In re Jones, 958 F.d. 347, 21 USPQ2d 1941 (Fed. Cir. 1992). In this case, the applicant made the erroneous assumption that the motivation to combine must be expressly stated in the art of record. From MPEP § 2144: "The rationale to modify or combine the prior art does not have to be expressly stated in the prior art; the rationale may be expressly or impliedly contained in the prior art or it may be reasoned from knowledge generally available to one of ordinary skill in the art, established scientific principles, or legal precedent established by prior case law. In re Fine, 837 F.d. 1071, 5 USPQ2d 1596 (Fed. Cir. 1988); In re Jones, 958 F.d. 347, 21 USPQ2d 1941 (Fed. Cir. 1992). See also In re Eli Lilly & Co., 902 F.d. 943, 14 USPQ2d 1741 (Fed. Cir. 1990) (discussion of reliance on legal precedent); In re Nilssen, 851 F.d. 1401, 1403, 7 USPQ2d 1500, 1502 (Fed. Cir. 1988) (references do not have to explicitly suggest combining teachings); Ex parte Clapp, 227 USPQ 972 (Bd. Pat. App. & Inter. 1985) (examiner must present convincing line of reasoning supporting rejection); and Ex parte Levengood, 28 USPQ2d 1300 (Bd. Pat. App. & Inter. 1993) (reliance on logic and sound scientific reasoning)." [Emphasis added]. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have modified the Seo et al.’s device to replace the first and second semiconductor layers are oxide semiconductor layers as taught by Moon et al. in order to enhance a high mobility efficiency of the semiconductor device for enhancing a stability operation of the semiconductor device, as is known to one of ordinary skill in the art. Thus, applicant’s claim 25 does not distinguish over cited references. Conclusion 6. THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any extension fee pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the date of this final action. 7. Any inquiry concerning this communication or earlier communications from the examiner should be directed to TAN N TRAN whose telephone number is (571) 272 - 1923. The examiner can normally be reached on 8:30-5:00PM. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Davienne Monbleau can be reached on (571) 272-1945. 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. /TAN N TRAN/ Primary Examiner, Art Unit 2812
Read full office action

Prosecution Timeline

Show 1 earlier event
Jul 09, 2025
Non-Final Rejection mailed — §103
Oct 02, 2025
Response Filed
Oct 23, 2025
Final Rejection mailed — §103
Jan 20, 2026
Request for Continued Examination
Jan 28, 2026
Response after Non-Final Action
Apr 16, 2026
Non-Final Rejection mailed — §103
Jul 06, 2026
Response Filed
Jul 28, 2026
Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12696545
DISPLAY DEVICE USING SEMICONDUCTOR LIGHT-EMITTING ELEMENT
3y 2m to grant Granted Jul 28, 2026
Patent 12696489
SEMICONDUCTOR DEVICE COMPRISING CONTACT HOLE REACHING SEMICONDUCTOR LAYER
3y 1m to grant Granted Jul 28, 2026
Patent 12696701
BRACING STRUCTURE, SEMICONDUCTOR DEVICE WITH THE SAME, AND METHOD FOR FABRICATING THE SAME
2y 7m to grant Granted Jul 28, 2026
Patent 12690365
DISPLAY PANELS AND DISPLAY APPARATUSES
2y 9m to grant Granted Jul 21, 2026
Patent 12677447
THIN FILM TRANSISTOR SUBSTRATE AND DISPLAY DEVICE COMPRISING THE SAME
3y 10m to grant Granted Jul 07, 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
87%
Grant Probability
97%
With Interview (+10.0%)
2y 1m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 1111 resolved cases by this examiner. Grant probability derived from career allowance rate.

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