Prosecution Insights
Last updated: July 17, 2026
Application No. 19/171,963

OPTICAL FILM AND IMAGE DISPLAY DEVICE

Non-Final OA §103
Filed
Apr 07, 2025
Priority
Feb 28, 2018 — JP 2018-034675 +2 more
Examiner
NGUYEN, JENNIFER T
Art Unit
2629
Tech Center
2600 — Communications
Assignee
Dai Nippon Printing Co., Ltd.
OA Round
2 (Non-Final)
82%
Grant Probability
Favorable
2-3
OA Rounds
1y 1m
Est. Remaining
90%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
847 granted / 1036 resolved
+19.8% vs TC avg
Moderate +8% lift
Without
With
+7.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
12 currently pending
Career history
1054
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
75.8%
+35.8% vs TC avg
§102
16.7%
-23.3% vs TC avg
§112
1.2%
-38.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1036 resolved cases

Office Action

§103
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 . This Office action is response to amendment/remarks filed on 04/28/26. Claim Rejections - 35 USC § 103 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 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. Claims 1-4 and 6-7 are rejected under 35 U.S.C. 103 as being unpatentable over Washio (US 2019/0016863) in view of Yamamoto (JP2017019674). Regarding claim 1, Washio discloses a foldable optical film (fig. 1, para. 0096) with a front surface (1) and a back surface (5) opposite to the front surface, comprising: a light-transmitting base material (2), a hard coat layer (1), and a resin layer (3), wherein the light-transmitting base material (2) is a base material containing a polyimide resin, a polyamide resin, or a combination thereof (paras. 0069 and 0179); the hard coat layer (1, para. 0097) is located closer to the front surface than the resin layer in the optical film; the resin layer (2, para. 0179) has a film thickness of 30 µm or more and 500 µm or less. Washio does not specifically disclose the resin layer has a Martens hardness of 1 MPa or more and 100 MPa or less. In a similar field of endeavor of the optical film, Yamamoto discloses resin layer has a Martens hardness of 1 MPa or more and 100 MPa or less (para. 0035). Therefore, it would have been obvious to one of ordinary skill in the art before effective filling date of the claimed invention to incorporate the hardness as taught by Yamamoto in the system of Washio in order to obtain the resin layer with a flexibility and without an excessive deformation (para. 0035). Regarding claim 2, the combination of Washio and Yamamoto discloses the hard coat layer (1), the light-transmitting base material (2), and the resin layer (3) arranged in this order from the front surface to the back surface in the optical film (fig. 1, para. 0096 of Washio). Regarding claim 3, the combination of Washio and Yamamoto discloses the hard coat layer (1), the resin layer (3), and the light-transmitting base material (4) arranged in this order from the front surface to the back surface in the optical film (fig. 1, para. 0096 of Washio). Regarding claim 4, the combination of Washio and Yamamoto discloses the resin layer has a film thickness of 50 µm or more and 500 µm or less (para. 0036 of Yamamoto). Regarding claim 6, the combination of Washio and Yamamoto discloses an image display device (para. 0012 of Washio), comprising: a display panel; and the optical film placed on the observer's side of the display panel, wherein the front surface of the optical film is closer to the observer's side than the back surface of the optical film (paras. 0012-0013 of Washio). Regarding claim 7, the combination of Washio and Yamamoto discloses the display panel is an organic light-emitting diode panel (paras. 0002-0003 of Yamamoto). Claim 5 is rejected under 35 U.S.C. 103 as being unpatentable over Washio in view of Yamamoto and further in view of Nodono et al. (US 2018/0370207). Regarding claim 5, the combination of Washio and Yamamoto does not specifically disclose no crack or break is formed in the optical film when the optical film is folded in a manner that leaves a gap of 30 mm between the opposite edges, and then unfolded, and the process is repeated one hundred thousand times. In a similar field of endeavor of optical film, Nodono discloses no crack or break is formed in the optical film (10, fig. 6) when the optical film is folded in a manner that leaves a gap of 30 mm between the opposite edges, and then unfolded, and the process is repeated one hundred thousand times (paras. 0020-0021). Therefore, it would have been obvious to one of ordinary skill in the art before effective filling date of the claimed invention to incorporate the optical film as taught by Nodono in the system of Washio and Yamamoto in order to enhance the flexibility for a display device. Response to Arguments Applicant’s arguments with respect to claims 1-7 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JENNIFER T NGUYEN whose telephone number is (571)272-7696. The examiner can normally be reached Mon-Fri 7:00-5:00. 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, Benjamin C Lee can be reached at 5712722963. 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. /JENNIFER T NGUYEN/Primary Examiner, Art Unit 2629
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Prosecution Timeline

Apr 07, 2025
Application Filed
Jan 02, 2026
Non-Final Rejection mailed — §103
Apr 28, 2026
Response Filed
Jul 10, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12666774
HIGH EFFICACY POLYCHROMIC LIGHT-EMITTING DIODE (LED)
2y 1m to grant Granted Jun 23, 2026
Patent 12656987
IMAGE PROCESSING METHOD AND APPARATUS, DEVICE, STORAGE MEDIUM, AND PROGRAM PRODUCT
1y 8m to grant Granted Jun 16, 2026
Patent 12658134
DISPLAY DEVICE
1y 3m to grant Granted Jun 16, 2026
Patent 12650336
DISPLAY APPARATUS, INSPECTION APPARATUS FOR THE DISPLAY APPARATUS, AND CONTROL METHOD OF THE INSPECTION APPARATUS
1y 6m to grant Granted Jun 09, 2026
Patent 12646441
LIGHT EMITTING DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF
2y 3m to grant Granted Jun 02, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
82%
Grant Probability
90%
With Interview (+7.9%)
2y 5m (~1y 1m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1036 resolved cases by this examiner. Grant probability derived from career allowance rate.

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