Prosecution Insights
Last updated: October 02, 2026
Application No. 17/270,191

ANTI-REFLECTIVE FILM, POLARIZING PLATE, AND DISPLAY APPARATUS

Final Rejection §103
Filed
Feb 22, 2021
Priority
May 28, 2019 — RE 10-2019-0062632 +2 more
Examiner
DICUS, TAMRA
Art Unit
1787
Tech Center
1700 — Chemical & Materials Engineering
Assignee
LG Chem Ltd.
OA Round
13 (Final)
30%
Grant Probability
At Risk
14-15
OA Rounds
0m
Est. Remaining
52%
With Interview

Examiner Intelligence

Grants only 30% of cases
30%
Career Allowance Rate
198 granted / 649 resolved
-34.5% vs TC avg
Strong +21% interview lift
Without
With
+21.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 11m
Avg Prosecution
57 currently pending
Career history
710
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
59.9%
+19.9% vs TC avg
§102
13.4%
-26.6% vs TC avg
§112
17.9%
-22.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 649 resolved cases

Office Action

§103
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Applicants' arguments have been fully considered. Rejections and/or objections not reiterated from previous office actions are hereby withdrawn due to Applicant's amendments and/or arguments. The following rejections and/or objections are either reiterated or newly applied. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103(a) which forms the basis for all obviousness rejections set forth in this Office action: (a) A patent may not be obtained though the invention is not identically disclosed or described as set forth in section 102 of this title, if the differences between the subject matter sought to be patented and the prior art are such that the subject matter as a whole would have been obvious at the time the invention was made to a person having ordinary skill in the art to which said subject matter pertains. Patentability shall not be negatived by the manner in which the invention was made. Claims 1-2, 5, 10, 14, and 16 are rejected under 35 U.S.C. 103(a) as being unpatentable over Yasahiro et al. (JP 2006/063147) in view of US 20070134459 A1, Hubert et al., in view of Shin et al. (US 20160062012) as evidenced by Journal of Polymer Science, https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.1958.1203112326 , in view of Takamiya (US 2012/0229423), in view US 20060052565 A1 (Yoshioka et al.) in view of US 20180194912 A1 (Kim et al.) and further in view of US 20190004214 A1 (Kim ‘219). Re claims 1-5, 10, 14, and 16, Yasahiro et al. disclose anti-reflection film comprising base material 12, hard coat layer 14, and low refractive index layer 18 (0001, 0123 as in part per claim 1). Example 1, Yasahiro teaches the film thickness is about 100 nm (close to 110 nm). It is apparent, however, that the instantly claimed amount are so close to each other that the fact pattern is similar to the one in In re Woodruff , 919 F.2d 1575, USPQ2d 1934 (Fed. Cir. 1990) or Titanium Metals Corp. of America v. Banner, 778 F.2d 775, 227 USPQ 773 (Fed.Cir. 1985) where despite a “slight” difference in the ranges the court held that such a difference did not “render the claims patentable” or, alternatively, that “a prima facie case of obviousness exists where the claimed ranges and prior art ranges do not overlap but are close enough so that one skilled in the art would have expected them to have the same properties”. In light of the case law cited above and given that there is only a “slight” difference between the amount of thickness disclosed by Yasahiro and the amount disclosed in the present claims, it therefore would have been obvious to one of ordinary skill in the art that the amount of thickness disclosed in the present claims is but an obvious variant of the amount disclosed in Yasahiro, and thereby one of ordinary skill in the art would have arrived at the claimed invention. The base material 12 includes polyester (0132). The hard coat layer comprises binder such as acrylic resin (i.e. photocurable resin) and inorganic particles (0130, 0146 as per claims 3 and 6). Yasahiro et al. disclose a composition for forming the low refractive index layer which comprises a ethylenically unsaturated group-containing fluoropolymer A that is crosslinked, a compound having a cage-like silsesquioxane skeleton B, i.e. polysilsesquioxane, and silica particles D (0011, 0015 as per claims 3, and 6). The fluoropolymer is made from a fluorine-containing compound with a reactive functional group (e.g., a radically polymerizable methacrylic group) which is photopolymerizable (0016-0018). The fluorine compound may be more specifically a compound including a polyether group (e.g., polyethylene oxide) as well as a fluorinated hydrocarbon group with one of the hydrogens of the hydrocarbon being substituted with fluorine as well as the above mentioned radically polymerizable methacrylic group (0016-0018, 0021, 0025, 0050). By including a methacrylic radically polymerizable group, a fluorine atom (substituted for a hydrogen atom), as well as a polyether group, the fluorinated compound is a polyether compound in which at least one photoreactive functional group (the methacrylic group) is substituted and at least on hydrogen is substituted with fluorine (as per claims 4 and 6). The polysilsesquioxane can include a functional group including epoxy, (meth)acrylate, and vinyl groups (0060-0063 as per claim 7 having the molecular weight claimed). The silica particles are hollow and have average particle diameter of 1-30 nm or 40-100 nm (0015, 0074 as per claim 3 and 6, fine). Yasahiro et al. discloses that is it known to provide an antireflection film on a polarizing plate of a display (0002 as per claims 12-16). Further re claim 1, There is no disclosure in Yashiro to teach the binder resin hard coating composition. Hubert, [50] hardcoat layers and discloses the dipentaerythritol hexaacrylate (0115), pentaerythritol triacrylate (0115), and urethane acrylate oligomer, i.e. corresponding to both the claimed urethane acrylate and urethane acrylate polymer, which is a reaction production of toluene diisocyanate and pentaerythritol triacrylate (0116). Hubert meets the “consisting of” language since the abrasion resistant layer includes monomers (i.e. the dipentaerythritol hexaacrylate and pentaerythritol triacrylate) and oligomer (urethane acrylate) which would correspond to the claimed binder resin and therefore does not require any components outside the “consisting of” language. The benefit is for improved optical films with effective abrasion resistant layers.[114], Hubert. It would have been obvious to one of ordinary skill in the art at the time the invention was made to have modified the hard coating to that disclosed by Hubert as interpreted above for improved optical films with effective abrasion resistant layers. There is no disclosure in Yasahiro et al. of (a) of low moisture permeable polymer film as claimed, (b) specific hard coating layer construction as claimed, and (c) properties as claimed. With respect to difference (a), Yasahiro et al. discloses base material that includes includes polyester. Shin et al. discloses a polyester film used on a polarizer where the polyester is polyethylene terephthalate (abstract, 0036 as per claim 9). The polyester film has a tensile strength ratio of 3 or greater (Abstract) where the tensile strength in one direction is larger than in another perpendicular direction (abstract, 0022). The polyester has a Rth retardation of 15000 or less at 550 nm (0030). The polyester film has high elongation, high retardation, and prevents or reduces deterioration in image quality (0029). Given that the film is identical to that used in the present invention, it would necessarily function as a low moisture permeable polymer film. Therefore, it would have been obvious to one of ordinary skill in the art to use the polyethylene terephthalate film of Shin et al. as the polyester base material in Yasahiro et al. in order to produce a base material that has high elongation, high retardation, and prevents or reduces deterioration in image quality and thereby arrive at the claimed invention. With respect to difference (b), Yoshioka discloses an antireflection film having [17, 56, 67, 72, 74], one surface of a single hard coating layer in contact with a [74] low moisture permeable polymer film, [67] low refractive index, and good adhesion (page 3, lines 96-113 as per claim 7 inherent property absent evidence to contrary) and where the binder resin of said layer has overlapping range [18, 39, 57] of number average molecular weight of 10,000 to 80,000 of acryl-based or styrene based polymer as claimed for exhibiting excellent light transmission and haze and essential transparency. In the case where the claimed ranges “overlap or lie inside ranges disclosed by the prior art” a prima facie case of obviousness exists. In reWertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976); In reWoodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). See MPEP 2144.05. It would have been obvious to one of ordinary skill in the art at the time the invention was made to have modified the hard coating sandwiched by low moisture permeable layer and low reflective layer of Yoshioka to have used, added, or substituted the construction in the hard coat of Yasahiro et al. in order to produce hard coat for exhibiting excellent transparency and to have selected from the overlapping portion of the range taught by the reference because overlapping ranges have been held to establish prima facie obviousness. MPEP 2144.05. Re claims 1-2, and 14: With respect to difference (c), given that Yasahiro et al. in view of Shin et al. disclose anti-reflection film as presently claimed including low moisture permeable polymer film with tensile strength ratio and thickness direction retardation identical to that claimed, it is clear that the anti-reflection film would necessarily inherently possess the same first peak, second peak, ratio of the intensity of the first peak to the second peak, diffraction pattern XRD, its measurement Cu target, average reflectance, average reflectance deviation, and light transmittance deviation as claimed (as per claims 1-2, and 14-15). Further thickness (per claim 14) of the laminate is within the skilled artisan to have modified it would have been obvious to one of ordinary skill in the art to optimize and use polarizer, hard coating and anti-reflective layers with thickness, including that presently claimed, in order to produce polarizer, hard coating and anti-reflective layers with effective functionality. Further re claim 1, Yoshida discloses that it is known to provide an antireflection film on a polarizer but is silent to a second hard coating layer on the side of the polarizer opposite to antireflection layer. Takamiya discloses a second hard coating layer 41 on the outside of the polarizing plate 131 (0119, 0161, Fig 8). The second hard coating layer has a thickness of 1-20 microns (0122). The second hard coat layer would prevent glare and Newton ring formation (0012, 0120). It would have been obvious to one of ordinary skill in the art at the time the invention was made to have added a second hard coating/polarizer to Yoshida’s polarizer/antireflection film as an outer coating for preventing glare. Further Re claim 1, The combination does not disclose the organic and inorganic particles dispersed in a photocurable resin binder (note above inorganic and acrylic resins are disclosed as set forth above). Kim teaches inorganic particles dispersed in a binder [111-114] such as methacrylate, photopolymerizeable crosslinked polysilsesquioxane and fluorine compounds [37-44] as claimed in low refractive index layer [48-56] for scratch resistance and transparency where all others such as silicones are optional materials in one example and in [108-111] only those exact claimed materials are included for a hard coating layer where 10,000 or more molecular weight overlaps applicant’s range up to 80,000. Therefore, it would have been obvious to one of ordinary skill in the art to use only the photocurable resin binder with organic and inorganic particles mixed and thus dispersed in the acrylic binder of Kim in the low reflective layer and hard coat of the combination for antiglare properties and exclude others not claimed as they are optional, and aid in minimizing raw material costs. Yashiro fails to disclose a biaxially drawn PET film with the recited ratio. Shin discloses a biaxially drawn PET film wherein a ratio of transverse direction: machine direction tensile strength of greater than 3 [0007, 0017-0018, 0053] which overlaps the claimed range for the benefit of moisture permeability improvement, the same reason as applicant is concerned [0036, 0039]. See further the orientation degrees [007, 0017], Shin in both MD and TD. Shin also teaches evidence of biaxially drawn PET film in: [0029-0033], esp. [30 and 33]. In addition, in some embodiments, the polyester film 120 may have a degree of biaxiality (NZ) at a wavelength of 550 nm of about 1.8 or lower. See evidence of the PET of Shin is indeed biaxially drawn in the Journal of Polymer Science excerpt, at least pg. 511 under Synopsis heading teaching: [a] biaxial orientation in which the plane of the molecules tends to be parallel to the plane of the film can be detected in the x-ray diffraction patterns and from the birefringence measurements. (emphasis added). Thus, because the PET film has a degree of biaxialilty (NZ) at the wavelength recited, this degree of biaxiality is a birefringence measurement and evidence that the film is biaxially oriented. In the case where the claimed ranges “overlap or lie inside ranges disclosed by the prior art” a prima facie case of obviousness exists. In reWertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976); In reWoodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). See MPEP 2144.05. It would have been obvious to one of ordinary skill in the art at the time the invention was made to have selected from the overlapping portion of the range taught by the reference because overlapping ranges have been held to establish prima facie obviousness. MPEP 2144.05. It would have been obvious to one of ordinary skill in the art to substitute, add or use the biaxially oriented PET film of Shin with the overlapping tensile of 3 for the benefit of being able to produce polyethylene terephthalate with moisture permeability improvement. Further re claim 1, the combination doesn’t teach the molecular weights as claimed. Kim ‘219 teaches [19, 41-49, 65-71] binder layer. Kim ‘219 [60-61] teaches overlapping ranges of molecular weight a mixture of two or more thereof, or a urethane-modified acrylate oligomer and [132-133] number average molecular weight, it would have been obvious to choose both urethane and acrylic based polymers in the list for the copolymer over 13,000. In the case where the claimed ranges “overlap or lie inside ranges disclosed by the prior art” a prima facie case of obviousness exists. In re Wertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976); In re Woodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). See MPEP 2144.05. It would have been obvious to one of ordinary skill in the art at the time the invention was made to have selected from the overlapping portion of the ranges of claimed molecular weights for improving film consistency and the binder for alkali resistance as taught by the reference because overlapping ranges have been held to establish prima facie obviousness. MPEP 2144.05. Response to Arguments Applicant’s arguments have been considered but are not convincing for the following reasons. Applicant argues the terminal disclaimer has been submitted. However, no TD has been received. Applicant argues that crystallographic orientation is not an inevitable result of material selection alone and depends on processing history such as stretch conditions, thermal treatment, and orientation control. Further, the prior art does not disclose any processing or orientation controls that would necessarily produce the claimed crystal face correspondence. However, while applicant argues that the prior art would not necessarily meet the claimed crystallographic orientation, applicant has provided no evidence to support this position. it is noted that “the arguments of counsel cannot take the place of evidence in the record”, In re Schulze, 346 F.2d 600, 602, 145 USPQ 716, 718 (CCPA 1965). It is the examiner’s position that the arguments provided by the applicant regarding the prior art not meeting the claimed crystallographic orientation must be supported by a declaration or affidavit. Applicant argues that the cited references do not recognize or inherently require the claimed crystallographic orientation. It is agreed that there is no explicit disclosure in the prior art of the claimed crystallographic orientation. However, it is the examiner’s position that such property would inherently be met by the prior art absent evidence to the contrary. The basis for inherency is not based on mere possibility or probability but based on the fact that the prior art references explicitly meet all the claim limitations. It is the examiner’s position that a sound basis has been set forth for believing that the product of the prior art is the same as that claimed. The Office realizes that the claimed properties are not positively stated by the reference. However, the reference teaches all of the claimed components. Therefore, the claimed properties would be inherently necessarily be capable of being achieved by the prior art. If it is applicant’s position that this would not be the case: (1) persuasive evidence would need to be provided to support this position; and (2) it would be the Office's position that the application contains inadequate disclosure in that there is no teaching as to how to obtain the claimed properties with only the claimed components. Given that it is the examiner’s position that a sound basis has been provided in the rejections of record for believing that the products of the applicant and the prior art are the same, one would expect the claimed properties to necessarily be present (i.e. naturally flow from the prior art), and thus, the burden is properly shifted back to applicant to show that they are not. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US 9250371 B2 has in Fig. 6 an antireflective film 65, encapsulation substrate 50 may include glass, a metal or a polymer, and may cover or seal the lower electrode 20, an organic emission layer 30 and an upper electrode 40 to effectively prevent moisture and/or oxygen from flowing therein. US 20200241173 A1 (16/756,333) - dissimilar material and lacks properties. US 20200348450 A1 (16964715) – similar see ODP above. US 20210223438 A1 (16967465) – same PET material, inorganic particles nanometer range and light transmittance in [47]. US 20210309863 A1 (17270191) -similar see ODP above. US 20210206935 A1 (17059783) – Instant application. US 20190004214 A1 (16064039) - lacks the low moisture permeable polymer film and properties. US 20160077239 A1 – teaches most all but properties, lacks material and inherency. 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 nonprovisional extension fee (37 CFR 1.17(a)) 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 mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to TAMRA L. DICUS whose telephone number is (571)272-2022. The examiner can normally be reached M-F 8:00 am 4:00 pm. 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, Callie Shosho can be reached on 571-272-1123. 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. TAMRA L. DICUS Primary Examiner Art Unit 1787 /TAMRA L. DICUS/Primary Examiner, Art Unit 1787
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Prosecution Timeline

Show 26 earlier events
Dec 24, 2025
Response Filed
Mar 10, 2026
Final Rejection mailed — §103
Mar 30, 2026
Response after Non-Final Action
Apr 29, 2026
Request for Continued Examination
Apr 30, 2026
Response after Non-Final Action
May 29, 2026
Non-Final Rejection mailed — §103
Jun 26, 2026
Response Filed
Sep 03, 2026
Final Rejection mailed — §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

14-15
Expected OA Rounds
30%
Grant Probability
52%
With Interview (+21.4%)
3y 11m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 649 resolved cases by this examiner. Grant probability derived from career allowance rate.

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