Prosecution Insights
Last updated: April 19, 2026
Application No. 18/388,379

DISPLAY PANEL AND DISPLAY DEVICE

Non-Final OA §102§103§112
Filed
Nov 09, 2023
Examiner
YEMELYANOV, DMITRIY
Art Unit
2891
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
LG Display Co., Ltd.
OA Round
1 (Non-Final)
73%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
92%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allow Rate
393 granted / 538 resolved
+5.0% vs TC avg
Strong +19% interview lift
Without
With
+18.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
43 currently pending
Career history
581
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
52.4%
+12.4% vs TC avg
§102
23.2%
-16.8% vs TC avg
§112
22.4%
-17.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 538 resolved cases

Office Action

§102 §103 §112
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 . Drawings The drawings are objected to under 37 CFR 1.83(a). The drawings must show every feature of the invention specified in the claims. Therefore, the “a lowermost inclined portion of the light emitting layer is spaced apart from the anode electrode by a portion of the bank that is disposed between the lowermost inclined portion of the light emitting layer and the anode electrode.” of Claim 4 “a portion of the anode that is disposed on the inclined side surface of the concave portion of the first planarization layer is thinner than the portion of the anode electrode that extends along the bottom of the concave portion of the first planarization layer.” of Claim 9 “a size of each of the plurality of openings in the planarization layer ( is smaller than a size of each of the plurality of openings in the bank, and the size of each of the plurality of openings in the bank is smaller than a size of each of the plurality of openings in the black matrix.” Of Claim 25 must be shown or the feature(s) canceled from the claim(s). No new matter should be entered. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. The figure or figure number of an amended drawing should not be labeled as “amended.” If a drawing figure is to be canceled, the appropriate figure must be removed from the replacement sheet, and where necessary, the remaining figures must be renumbered and appropriate changes made to the brief description of the several views of the drawings for consistency. Additional replacement sheets may be necessary to show the renumbering of the remaining figures. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 10 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 10 recites “second planarization layer disposed between the first planarization layer and the substrate, wherein a transmittance of the second planarization layer is lower than a transmittance of the bank and a transmittance of the first planarization layer.” Originally filed specifications discloses “a cathode electrode disposed on the light emitting layer, in which a transmittance of the second planarization layer is lower than a transmittance of the bank.” [0009]. “The transmittance of the third planarization layer PLN3 can be different than the transmittances of the first and second planarization layers PLN1 and PLN2.” [0097]. “Specifically, the transmittance of the third planarization layer PLN3 can be lower than the transmittances of the first and second planarization layers PLN1 and PLN2. For example, the third planarization layer PLN3 can be formed in a black color and absorb light.” [0098] And The third planarization layer PLN3 can include at least one concave portion 210. [0099] Examiner notes that the third planarization layer PLN3 is black material according to originally filed specifications and limitations of Cliam 10 contradict [0098-0098] of Specifications. Therefore, it is not clear how can transmittance of the second planarization layer is lower than the one of the of the first planarization layer (black material) For the purposes of examination, the limitations of Claim 10 are considered to be met as long as transmittance of the first planarization layer is lower than a transmittance of the bank and a transmittance of the second planarization layer. The Examiner further notes that nomenclature for structural items (i.e planarization layers) between Specification and Figures do not match the nomenclature for structural items in the Claims. (i.e. first planarization layer in the Claims corresponds to third planarization layer in Specification and Figures since third planarization layer is the only one with concave portion according to Specifications) Examiner recommends to use single nomenclature between Spec, Figs and Claims to avoid confusion. Claim 11 recites the limitation " the second planarization layer " in line 1. There is insufficient antecedent basis for this limitation in the claim. For the purposes of examination, the Examiner will treat “the second planarization layer” as--a second planarization layer--. 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. Claim(s) 1-3, 5, 6, 10-12, 14 and 18 is/are rejected under 35 U.S.C. 102(A1) as being anticipated by Kim (US 2020/0075699 A1). PNG media_image1.png 608 722 media_image1.png Greyscale Regarding Claim 1, Kim (Fig. 4) discloses a subpixel, comprising: a transistor (120) disposed on a substrate (110); a first planarization layer (114) disposed on the transistor (120), the first planarization layer (114) including a concave portion (see concave portion in annotated Fig. 4) that corresponds to an emission area (A1) of the subpixel (SP); an anode electrode disposed (331) in the concave portion (see concave portion in annotated Fig. 4) of the first planarization layer (114); a light emitting layer (132) disposed on the anode electrode (331); and a bank (415) disposed on the anode electrode (331), wherein a portion of the bank (415) is disposed in the concave portion (see concave portion in annotated Fig. 4) of the first planarization layer (114) in an area between a portion of light emitting layer (132) and a portion of an inclined side surface of the anode electrode (331) (Fig. 4). Regarding Claim 2, Kim discloses the subpixel of claim 1, wherein the first planarization layer (114) is configured to block or absorb light. [0081] Regarding Claim 3, Kim discloses the subpixel of claim 2, wherein the first planarization layer includes a black material. [0065] Regarding Claim 5, Kim discloses the subpixel of claim 1, wherein the bank (415) includes a transparent material configured to allow light emitted from the light emitting layer to pass through the bank. [0094] Regarding Claim 6, Kim discloses the subpixel of claim 1, wherein the concave portion of the first planarization layer is a hole that extends all the way through the first planarization layer. (See annotated Fig. 4) Regarding Claim 10, Kim discloses the subpixel of claim 1, further comprising: a second planarization layer (113) disposed between the first planarization layer and the substrate (110), wherein a transmittance of the second planarization layer (113) is lower than a transmittance of the bank (415) and a transmittance of the first planarization layer (114). Regarding Claim 11, Kim discloses the subpixel of claim 1, wherein the second planarization layer (113) includes an additional concave portion (see concave portions corresponding to waves) overlapping with the concave portion of the first planarization layer, and wherein a portion of the anode electrode (331) is disposed in the additional concave portion of the second planarization layer.(112) (Fig. 4) Regarding Claim 12, Kim discloses the subpixel of claim 11, wherein a portion of the first planarization layer (114) is disposed in the additional concave portion of the second planarization layer (113). Regarding Claim 14, Kim discloses the subpixel of claim 1, further comprising a contact hole (hole for 331) in the first planarization layer 114), wherein the anode electrode (331) is electrically connected to the transistor (120) via the contact hole. (Fig. 4) Regarding Claim 18, Kim discloses a display device, comprising: a display panel configured to display an image, wherein the display panel (100) includes the subpixel of claim 1. (Fig. 1) 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. Claim(s) 7-9 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kim (US 2020/0075699 A1) in view of Beak et al. (US 2020/0194509 A1). Regarding Claim 7, Kim discloses the subpixel of claim 1, wherein Kim does not explicitly disclose the emission area of the subpixel includes a first emission area, a second emission area, and a first non-emission area between the first emission area and the second emission area. Beak (Fig. 4, 5 and 7B) discloses an emission area of a subpixel includes a first emission area (LEA1), a second emission area (LEA2), and a first non-emission area (NEA2) between the first emission area (LEA1) and the second emission area (LEA2). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the optoelectronic semiconductor device in Kim in view of Beak such that the emission area of the subpixel includes a first emission area, a second emission area, and a first non-emission area between the first emission area and the second emission area in order to improve the luminous efficiency of the display panel [0151]. Regarding Claim 8, Kim in view of Beak discloses the subpixel of claim 7, wherein a portion of the anode electrode (331) (ANO Beak) that extends along a bottom of the concave portion of the first planarization layer (114) (OC Beak) corresponds to the first emission area (LEA1 BEAK), wherein an area corresponding to the portion of the bank (415) (BNK Beak) that is disposed in the concave portion of the first planarization layer (114) (OC Beak) corresponds to the first non-emission area (NEA2 Beak), and wherein an area between an inclined side surface of concave portion (see inclined side surface of the concave portion) in (Kim and Beak) of the first planarization layer (114) (OC Beak) and an included side surface of the anode electrode (331) (Ano Beak) corresponds to the second emission area. (LEA2, Beak) Regarding Claim 9, Kim in view of Beak discloses the subpixel of claim 8, wherein a portion of the anode (331) (ANO Beak) that is disposed on the inclined side surface of the concave portion of the first planarization layer (331) (OC) is thinner than the portion of the anode electrode (331) (ANO Beak) that extends along the bottom of the concave portion of the first planarization layer. (331) (OC) Kim in view of Beak does not explicitly disclose the a portion of the anode (that is disposed on the inclined side surface of the concave portion of the first planarization layer is thinner than the portion of the anode electrode that extends along the bottom of the concave portion of the first planarization layer. However, Kim shows variable thickness of a portion of the anode that that extends along the bottom of the concave portion of the first planarization layer. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the optoelectronic semiconductor device in Kim in view of Beak to select thickness for the anode such that a portion of the anode that is disposed on the inclined side surface of the concave portion of the first planarization layer is thinner than the portion of the anode electrode that extends along the bottom of the concave portion of the first planarization layer in order to improve the luminous efficiency of the display panel [0133]. Claim(s) 4 and 13 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kim (US 2020/0075699 A1) Regarding Claim 4, Kim discloses the subpixel of claim 1, wherein Kim in the current embodiment does not explicitly disclose a lowermost inclined portion of the light emitting layer is spaced apart from the anode electrode by a portion of the bank that is disposed between the lowermost inclined portion of the light emitting layer and the anode electrode.. However, in a different embodiment Kim (Fig. 6) discloses a lowermost inclined portion of the light emitting layer (532) is spaced apart from a anode electrode (531A) by a portion of the bank (616) that is disposed between the lowermost inclined portion of the light emitting layer (532) and the anode electrode (531A). (Fig. 6) It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the optoelectronic semiconductor device in Kim to select a lowermost inclined portion of the light emitting layer is spaced apart from the anode electrode by a portion of the bank that is disposed between the lowermost inclined portion of the light emitting layer and the anode electrode so that the process cost and the process time or the tack time can be reduced. [0116] Regarding Claim 13, Kim discloses the subpixel of claim 12, wherein a slope of an inclined side surface of the concave portion of the first planarization layer (114) and a slope of an inclined side surface of the additional concave portion of the second planarization layer. (113) Kim does not explicitly disclose that a slope of an inclined side surface of the concave portion of the first planarization layer is steeper than a slope of an inclined side surface of the additional concave portion of the second planarization layer. However, Kim discloses varying a slope of an inclined side surface of the concave portion of the first planarization layer [ 20 degrees to 80 degrees.0068]. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the optoelectronic semiconductor device in Kim to select a slope of an inclined side surface of the concave portion of the first planarization layer such that a slope of an inclined side surface of the concave portion of the first planarization layer is steeper than a slope of an inclined side surface of the additional concave portion of the second planarization layer in order to enhance color sense difference depending on the viewing angle [0079] Claim(s) 15 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kim (US 2020/0075699 A1) in view of Lee et al. (US 2018/0211979 A1). Regarding Claim 15, Kim discloses the subpixel of claim 14, further comprising Kim does not explicitly disclose a spacer disposed on the bank and overlapping with the contact hole in the first planarization layer. Lee (Fig. 1) discloses a spacer (362) disposed on a bank (130) and overlapping with a contact hole opening in 110 for 125) in a first planarization layer (110) . It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the optoelectronic semiconductor device in Kim in view of Lee such that a spacer disposed on the bank and overlapping with the contact hole in the first planarization layer in order to prevent color mixture [0098] Claim(s) 16 and 17 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kim (US 2020/0075699 A1) in view of Lee et al. (KR 20150113422 A) hereinafter Lee/422) Regarding Claim 16, Kim discloses the subpixel of claim 1, wherein Kim does not explicitly disclose the anode electrode includes: a first transparent conductive material layer; a second transparent conductive material layer; and a reflective electrode layer disposed between the first transparent conductive material layer and the second transparent conductive material layer. Lee/422 (Fig. 7) discloses an anode electrode includes: a first transparent conductive material layer (ITO1); a second transparent conductive material layer (ITO2); and a reflective electrode layer (Ag) disposed between the first transparent conductive material layer (ITO1) and the second transparent conductive material layer (ITO2). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the optoelectronic semiconductor device in Kim in view of Lee/422 such that the anode electrode includes: a first transparent conductive material layer; a second transparent conductive material layer; and a reflective electrode layer disposed between the first transparent conductive material layer and the second transparent conductive material layer in order to luminous efficiency of the other sub-pixels and the luminous efficiency of the red sub-pixels can be adjusted to almost the same level. (Lee/422) Regarding Claim 17, Kim in view of Lee/422 discloses the subpixel of claim 16, wherein a thickness of the first transparent conductive material layer (about 600 Å; Lee/422 ) is greater than a thickness of the second transparent conductive material layer (about 100 Å; Lee/422). Claim(s) 19-25 is/are rejected under 35 U.S.C. 103 as being unpatentable over Beak et al. (US 2020/0194509 A1) in view of Shin et al. (US 2021/0118962 A1) Regarding Claim 19, Beak (Fig. 4-7) discloses a display device, comprising: a plurality of subpixels (SP) disposed on a substrate (Sub), each of the plurality of subpixels (SP) including a first emission area (LEA1), a second emission area (LEA2), and a first non-emission area (NEA2) between the first emission area and the second emission area; and a plurality of openings (Opn) corresponding to the plurality of subpixels (SP), wherein the first emission area (LEA1), the first non-emission area (NEA2) and the second emission area (LEA2) of a corresponding subpixel among the plurality of subpixels is located inside of an opening (OPN) among the plurality of openings. (NOP, NEA1) [0164-0165]. Shin (Fig. Fig. 1-2) discloses a black matrix (152) including a plurality of openings (openings in 152A, OA) corresponding to the plurality of subpixels (SP), wherein an emission area (EA), a corresponding subpixel among the plurality of subpixels is located inside of an opening (openings in 152A) among the plurality of openings in the black matrix (152). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the optoelectronic semiconductor device in Beak in view of Shin such that a black matrix including a plurality of openings corresponding to the plurality of subpixels and the first emission area, the first non-emission area and the second emission area of a corresponding subpixel among the plurality of subpixels is located inside of an opening among the plurality of openings in the black matrix in order to improve a reflective visibility [0006] and minimize the luminance deterioration and color distortion in accordance with a viewing angle. [0007]. Regarding Claim 20, Beak in view of Shin discloses the display device of claim 19, further comprising: a bank (BNK) including a plurality of openings for the plurality of subpixels, wherein each of the plurality of openings in the bank (BNK) corresponds to the first emission area (LEA1) of one of the plurality of subpixels (SP). Regarding Claim 21, Beak in view of Shin discloses the display device of claim 20, wherein an area of the black matrix (152 Shin) is greater than an area of the bank (114 Shin). Regarding Claim 22, Beak in view of Shin discloses the display device of claim 20, wherein a size of each of the plurality of openings (opening in 152) in the bank (114) is smaller than a size of each of the plurality of openings (OA) in the black matrix (152 Shin). Regarding Claim 23, Beak in view of Shin discloses the display device of claim 19, wherein the first non-emission area (NEA2) surrounds the first emission area (LEA1), and the second emission area (LEA2) surrounds the first non-emission area (NEA2), and wherein an outer edge of the second emission area (NEA1) corresponds to an edge of one of the plurality of openings in the black matrix (OA, EA; Shin). Regarding Claim 24, Beak in view of Shin discloses the display device of claim 23, further comprising: a planarization layer (OC) including a plurality of openings (A1, SA) for the plurality of subpixels (SP), wherein the first emission area (LEA1) and the first non-emission area (NEA2) of each of the plurality of subpixels (SP) are included in one of the plurality of openings (A1, SA) in the planarization layer (OC). Regarding Claim 25, Beak in view of Shin discloses the display device of claim 24, further comprising: a bank (BNK) including a plurality of openings (OPN) for the plurality of subpixels (SP), wherein each of the plurality of openings in the bank corresponds to the first emission area (LEA1) of one of the plurality of subpixels (SP), and wherein a size of each of the plurality of openings in the planarization layer is smaller than a size of each of the plurality of openings in the bank, and the size of each of the plurality of openings in the bank is smaller than a size of each of the plurality of openings in the black matrix. (See Fig. 4-9 Beak and 7 of Shin) Claim(s) 26 is/are rejected under 35 U.S.C. 103 as being unpatentable over Beak et al. (US 2020/0194509 A1) in view of Shin et al. (US 2021/0118962 A1) and further in view of Gil et al. (US 2019/0189957 A1). Regarding Claim 26, Beak in view of Shin discloses display device of claim 24, further comprising: Beak in view of Shin does not explicitly disclose a dam disposed in a non-emission area of the substrate, wherein the dam and the planarization layer include a same black material. Gil (Fig. 5) discloses a dam (220) disposed in a non-emission area (NA) of the substrate (100), wherein the dam (220) and a planarization layer (141,161) include a same black material. (Fig. 5) It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the optoelectronic semiconductor device in Beak in view of Shin such that a dam disposed in a non-emission area of the substrate, wherein the dam and the planarization layer include a same black material in order to block a path for moisture penetration [0083] Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DMITRIY YEMELYANOV whose telephone number is (571)270-7920. The examiner can normally be reached M-F 9a.m.-6p.m. 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, Matthew Landau can be reached at (571) 272-1731. 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. /DMITRIY YEMELYANOV/Examiner, Art Unit 2891
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Prosecution Timeline

Nov 09, 2023
Application Filed
Jan 10, 2026
Non-Final Rejection — §102, §103, §112 (current)

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Prosecution Projections

1-2
Expected OA Rounds
73%
Grant Probability
92%
With Interview (+18.7%)
2y 8m
Median Time to Grant
Low
PTA Risk
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