Prosecution Insights
Last updated: April 19, 2026
Application No. 18/458,934

OPTICAL MEMBER AND DISPLAY APPARATUS COMPRISING THE SAME

Non-Final OA §102§103
Filed
Aug 30, 2023
Examiner
RAABE, CHRISTOPHER M
Art Unit
2875
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
LG Display Co., Ltd.
OA Round
1 (Non-Final)
67%
Grant Probability
Favorable
1-2
OA Rounds
2y 4m
To Grant
96%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allow Rate
531 granted / 793 resolved
-1.0% vs TC avg
Strong +28% interview lift
Without
With
+28.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
31 currently pending
Career history
824
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
57.1%
+17.1% vs TC avg
§102
35.4%
-4.6% vs TC avg
§112
5.7%
-34.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 793 resolved cases

Office Action

§102 §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 . Claim Rejections - 35 USC § 102 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)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 1-6, 8, 10-14, 21, 22 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Shimatsu (USPN 2022/0085335). With regard to claim 1, Shimatsu discloses an optical member comprising: a first layer (50)including a pattern portion having a plurality of concave portions and a plurality of convex portions between the plurality of concave portions (See figures); and a second layer (35/36) covering the pattern portion, wherein the second layer includes a central area (35) and an outer area (36), and wherein a refractive index of the second layer in the central area is different from that of the second layer in the outer area (see paragraph 275). With regard to claim 2, Shimatsu discloses the optical member of claim 1, wherein the refractive index of the second layer in the central area is different from that of the first layer (see paragraph 275). With regard to claim 3, Shimatsu discloses the optical member of claim 2, wherein the difference in the refractive index between the second layer and the first layer in the central area is 0.01 or more (See paragraph 275). With regard to claim 4, Shimatsu discloses the optical member of claim 2, wherein the difference in the refractive index between the second layer and the first layer in the central area is 0.03 or more (See paragraph 275). With regard to claim 5, Shimatsu discloses the optical member of claim 1, wherein the first layer is disposed below the second layer to correspond to each of the central area and the outer area (see figures). With regard to claim 6, Shimatsu discloses the optical member of claim 5, wherein a refractive index of the first layer is identical in the central area and the outer area (See paragraph 275). With regard to claim 8, Shimatsu discloses the optical member of claim 5, wherein the difference in the refractive index between the first layer and the second layer, which are disposed in the central area, is greater than the difference in the refractive index between the first layer and the second layer, which are disposed in the outer area (see paragraph 275). With regard to claim 10, Shimatsu discloses the optical member of claim 1, wherein at least one of an upper surface of the first layer and a lower surface of the second layer is flat (see figures). With regard to claim 11, Shimatsu discloses a display apparatus comprising: a display panel (26-34) for displaying an image; and an optical panel (35+) coupled to the display panel, wherein the optical panel includes an optical member having: a first layer (50) including a pattern portion having a plurality of concave portions and a plurality of convex portions between the plurality of concave portions (see figures); and a second layer (35/36) covering the pattern portion, wherein the second layer includes a central area (35) and an outer area (36), and wherein a refractive index of the second layer in the central area is different from that of the second layer in the outer area (see, e.g., paragraph 275). With regard to claim 12, Shimatsu discloses the display apparatus of claim 11, wherein the optical panel is coupled to one side of the display panel from which light is emitted (see, e.g., fig. 2). With regard to claim 13, Shimatsu discloses the display apparatus of claim 11, wherein the display panel includes: a substrate (11) including a display area having a plurality of subpixels (30) and a non-display area (remainder) adjacent to the display area; and a light extraction portion (34) disposed on the substrate in each of the plurality of subpixels, and wherein the light extraction portion overlaps the pattern portion of the optical member. With regard to claim 14, Shimatsu discloses the display apparatus of claim 13, wherein the display area is disposed to correspond to the central area of the optical member (See figures), and at least a portion of the non-display area is disposed to correspond to the outer area of the optical member (See figures). With regard to claims 21, 22 Shimatsu discloses the display apparatus of claim 13, wherein the light extraction portion includes a plurality of concave patterns and a plurality of convex patterns between the concave patterns, and wherein a pitch of the plurality of convex patterns is smaller or greater than a pitch of the plurality of convex portions (see figures). Claim Rejections - 35 USC § 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 7, 9, 15-20 are rejected under 35 U.S.C. 103 as being unpatentable over Shimatsu (as above). With regard to claims 7,9, Shimatsu discloses the optical member of claim 5. While Shimatsu does not disclose the claimed range of values, a difference in the refractive index between the second layer and the first layer in the outer area of 0 to 0.03 and a haze of 20% or less are well within the ability of one of ordinary skill in the art at the time of the invention and would have been obvious to the same to try to incorporate into the member of Shimatsu in order to improve light output. With regard to claim 15, Shimatsu discloses the display apparatus of claim 14, wherein the non-display area includes a first non-display area having a peripheral circuit portion (corresponding to 20) connected to the plurality of subpixels. While Shimatsu does not disclose a visual recognition mark, such marks are well known to and widely used by those of ordinary skill in the art at the time of the invention and would have been obvious to the same to incorporate into the apparatus of Shimatsu in order to provide more reliable apparatus alignment. With regard to claim 16, Shimatsu discloses the display apparatus of claim 15, wherein the first non-display area is disposed to correspond to the central area of the optical member (see figures). With regard to claim 17, Shimatsu discloses the display apparatus of claim 15, wherein the first non-display area is disposed to correspond to the outer area of the optical member (see figures). With regard to claim 18, Shimatsu discloses the display apparatus of claim 15. The obviousness of the incorporation of the visual recognition mark was addressed in the rejection of claim 15. With regard to claim 19, Shimatsu discloses the display apparatus of claim 15, wherein the display panel further includes: a light emitting element layer (33) on the light extraction portion; an opposing substrate (12) on the light emitting element layer to face the substrate; and a color filter (CF) layer for color-converting light emitted from the light emitting element layer, wherein the color filter layer is between the light emitting element layer and the optical member (See figures). With regard to claim 20, Shimatsu discloses the display apparatus of claim 19. The obviousness of the incorporation of the visual recognition mark was addressed in the rejection of claim 15. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. USPN 2025/0160118, JP2013228656. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Christopher Raabe whose telephone number is (571)272-8434. The examiner can normally be reached M-F 0530-1430. 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, James R Greece can be reached at (571)272-3711. 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. /CHRISTOPHER M RAABE/Primary Examiner, Art Unit 2875
Read full office action

Prosecution Timeline

Aug 30, 2023
Application Filed
Jan 20, 2026
Non-Final Rejection — §102, §103
Mar 27, 2026
Applicant Interview (Telephonic)
Mar 27, 2026
Examiner Interview Summary

Precedent Cases

Applications granted by this same examiner with similar technology

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PIXEL ARRANGEMENT STRUCTURES, DISPLAY PANELS, AND DISPLAY DEVICES
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2y 5m to grant Granted Mar 17, 2026
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2y 5m to grant Granted Mar 10, 2026
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
67%
Grant Probability
96%
With Interview (+28.5%)
2y 4m
Median Time to Grant
Low
PTA Risk
Based on 793 resolved cases by this examiner. Grant probability derived from career allow rate.

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