Prosecution Insights
Last updated: July 17, 2026
Application No. 18/912,586

OPTICAL COMPONENT, FRONT LIGHT MODULE AND REFLECTIVE DISPLAY

Non-Final OA §102§103
Filed
Oct 11, 2024
Priority
Oct 12, 2023 — CN 202311321405.0
Examiner
CARRUTH, JENNIFER DOAK
Art Unit
Tech Center
Assignee
Radiant Opto-Electronics Corporation
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
11m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
718 granted / 930 resolved
+17.2% vs TC avg
Strong +16% interview lift
Without
With
+15.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
12 currently pending
Career history
941
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
76.3%
+36.3% vs TC avg
§102
17.8%
-22.2% vs TC avg
§112
2.4%
-37.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 930 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 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 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)(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. (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. Claims 1-3, 9-11 are rejected under 35 U.S.C. 102(a)(1) and 102(a)(2) as being anticipated by Cha (US 20220099869). Regarding claim 1, Cha discloses A light guide film (Title – optical sheet and display device), comprising (i.e., open language for the claim, MPEP 2111.03): a base material layer (as defined by the following limitations) comprising (i.e., open language for the base material layer) a light incident surface (Fig. 4: 700 – light guide plate); an upper ultraviolet adhesive layer disposed above the base material layer (620 – adhesive layer; para. 171 indicates UV curable resins may be used for the adhesive layers); a lower ultraviolet adhesive layer disposed below the base material layer (610 – adhesive layer; para. 171 indicates UV curable resins may be used for the adhesive layers); two optical adhesive layers (i.e., interpreted as “at least two…” due to comprising claim language) disposed above the upper ultraviolet adhesive layer (e.g., 320 – second function al coating layer, 400 – reflective polarizing film) and below the lower ultraviolet adhesive layer respectively (e.g., 211 – first base layer, 212 – first prism layer) (note: the claim does not require “two and only two optical adhesive layers” to overcome the open “comprising” language of the claim); and a light incident microstructure unit (as defined by the following limitations) comprising (i.e. open language for the light incident microstructure unit) a first microstructure region (310 – first functional coating layer; 310 may comprise beads 311 and binder resin 312) and disposed on (i.e., above, with or without intervening layers/elements) the light incident surface of the base material layer (700 – light guide plate) (note: the claim does not specify that the light incident surface is the first surface to receive light or that it is in a plane perpendicular to the plane of the other film layers – see application Fig. 2, element 5, which is likely the inventive feature). Regarding claim 2, the reference further discloses The light guide film of claim 1, wherein the light incident microstructure unit further comprises: a second microstructure region (i.e., unquantified, thus the respective layers meet this limitation) disposed on (i.e., above, layered with) two end surfaces (e.g., left, right in fig 4) of the upper ultraviolet adhesive layer and the lower ultraviolet adhesive layer respectively (first and second functional layers 310 and 320) and near to the light incident surface of the base material layer (i.e., “near” is an unquantified value; the film is small, so all the layers are considered “near” the base layer). Regarding claim 3, the reference further discloses 3. The light guide film of claim 2, wherein the light incident microstructure unit comprises: a plurality of microstructures, wherein each of the microstructures within the first microstructure region has a first depth, and each of the microstructures within the second microstructure region has a second depth, wherein the first depth is larger than the second depth (i.e., the beads in 310 appear smaller than 320, creating a presumption thereto). Regarding claim 9, the reference further discloses 9. The light guide film of claim 1, wherein the lower ultraviolet adhesive layer comprises: an inclined part (via 212 first prism pattern layer, first inclined side); and a flat part (via 212 first prism pattern layer, second inclined side), wherein the inclined part is near to the light incident surface of the base material layer (i.e., together with it via the system), and the flat part extends from the inclined part in a direction away from the light incident surface of the base material layer (via 212 first prism pattern layer, second inclined side). Regarding claim 10, the reference further discloses 10. A front light module (Fig. 3: 1 – display device; “front is not defined by the claim”), comprising (open language, MPEP 2111.03): the light guide film of claim 1 (10 – backlight unit, Fig. 4), and the upper ultraviolet adhesive layer of the light guide film comprises a plurality of reflective microstructures (i.e., beads); and a light emitting unit disposed opposite to a light incident side of light guide film (900-light source). Regarding claim 11, the reference further discloses 11. A reflective display, comprising: the front light module of claim 10 (Fig. 3); an optical component disposed above the light guide film (the “above” direction is not defined by the claim); and a reflective display panel disposed below the light guide film (10 – backlight unit; Fig. 4) . 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 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 of this title, 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. The factual inquiries set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. 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 4-8 and 12 are rejected under 35 U.S.C. 103 as being unpatentable over Cha. Regarding claim 4-8, Cha discloses refractive index options (e.g., para. 107, 164 – refractive index). Cha does not explicitly discloses [claim 4] a refractive index of the base material layer is larger than a refractive index of the lower ultraviolet adhesive layer, and a difference in between is D1; [claim 5] an absolute difference between the refractive index of the lower ultraviolet adhesive layer and a refractive index of the optical adhesive layer near to the lower ultraviolet adhesive layer is D2, wherein the absolute difference satisfies an inequality: 0 ≤ D2 < D1; [claim 6] a refractive index of the base material layer is smaller than a refractive index of the upper ultraviolet adhesive layer; [claim 7] a refractive index of the base material layer is equal to a refractive index of the upper ultraviolet adhesive layer; [claim 8] a refractive index of the lower ultraviolet adhesive layer is smaller than a refractive index of the upper ultraviolet adhesive layer. However, it has been held that where the general conditions of a claim, including are disclosed in the prior art, discovering the optimum or workable ranges involves only routine skill in the art, In re Aller, 105 USPQ 233 (C.C.P.A. 1955). Considered a result effective variable (MPEP 2144.05(III)(C)), the general conditions are met in Cha because it discloses general use options regarding the refractive index. Further, adjusting the thicknesses and respective ratios of the refractive indices to optimize the image quality to desired results is expected to be within the skill of an ordinary artisan. As was noted in In re Aller, 105 USPQ 233 (CCPA 1955) at 237, where the court quotes the Board of Appeals it is noted that failure to perform the experiments for commercial exploitation would “show a want of the expected skill of the engineer.” Therefore, it obvious to an ordinarily skilled artisan before the effective filing date of the claimed invention to adjust the thicknesses and respective ratios of the refractive indices of Cha’s film to optimize the image quality. Regarding claim 12, the reference does not further disclose the optical component is a touch sensor. However, Official Notice is taken that it would have been well known in the art to make the optical component a touch sensor, as it is and has been highly desirable in the market for the last decade, approximately. Therefore, it obvious to an ordinarily skilled artisan before the effective filing date of the claimed invention to make the optical component a touch sensor, as it is and has been highly desirable in the market for the last decade, approximately. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JENNIFER D. CARRUTH whose telephone number is (571)272-9791, who can normally be reached on Mon-Fri 9:00 AM - 4:00 PM ET. Examiner interviews are available via telephone 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 Supervisory Examiner Carruth by telephone are unsuccessful, the examiner’s supervisor, Director Allana L Bidder, can be reached on 571-272-5560. 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. /JENNIFER D. CARRUTH/Supervisory Patent Examiner, Art Unit 2871
Read full office action

Prosecution Timeline

Oct 11, 2024
Application Filed
Jun 22, 2026
Non-Final Rejection mailed — §102, §103 (current)

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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
77%
Grant Probability
93%
With Interview (+15.6%)
2y 8m (~11m remaining)
Median Time to Grant
Low
PTA Risk
Based on 930 resolved cases by this examiner. Grant probability derived from career allowance rate.

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