Prosecution Insights
Last updated: October 04, 2026
Application No. 18/511,210

DISPLAY PANEL AND DISPLAY TERMINAL

Final Rejection §103§112
Filed
Nov 16, 2023
Priority
Apr 20, 2023 — CN 202310458506.6
Examiner
CAMPBELL, SHAUN M
Art Unit
2893
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
HKC Corporation Limited
OA Round
2 (Final)
73%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
81%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allowance Rate
770 granted / 1058 resolved
+4.8% vs TC avg
Moderate +9% lift
Without
With
+8.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
31 currently pending
Career history
1089
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
56.5%
+16.5% vs TC avg
§102
25.2%
-14.8% vs TC avg
§112
12.9%
-27.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1058 resolved cases

Office Action

§103 §112
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 . DETAILED ACTION Priority Acknowledgment is made of applicant's claim for foreign priority based on an application filed in People’s Republic of China on 04/20/2023. It is noted, however, that applicant has not filed a certified copy of the Foreign application as required by 37 CFR 1.55. Election/Restrictions Applicant’s election without traverse of Species A (Claims 1-4 and 12-15) in the reply filed on 3/23/2026 is acknowledged. Claims 5-11 and 16-20 are withdrawn from consideration. Applicant Claim Amendments Applicant’s amendments received 7/7/2026 have been entered. Applicant has amended claim 1 to substantially include the limitations of claim 2 while deleting recitation of “a first trace part.” It is noted that the amendments presented in claim 1 do not include an underline for all added limitations and a cross through for all deleted limitations. Applicant is reminded to include underlining and cross through for all changes for future claim amendments. 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. Claims 1, 4, 12 and 15 are 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 1 recites the limitation "the first trace part" in the third to last line. There is insufficient antecedent basis for this limitation in the claim. Claim 4 is indefinite because of its dependence from claim 1. Claim 12 recites the limitation "the first trace part" in the third to last line. There is insufficient antecedent basis for this limitation in the claim. Claim 15 is indefinite because of its dependence from claim 12. 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. 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. Claim(s) 1 and 4 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kim et al. (US Pub. No. 2023/0044202 A1), hereafter referred to as Kim, in view of Lee et al. (US Pub. No. 2005/0236629 A1), hereafter referred to as Lee. As to claim 1, Kim discloses a display panel (fig 1, DD) having a display region (pixel region including PXA) and a non-display region (peripheral region) surrounding the display region (pixel region), wherein the display panel (DD) comprises a cathode signal trace (UCE) and a cathode layer (EL2), the cathode signal trace is located in the display region (fig 2, UCE in the pixel region between the pixel PXA), the cathode signal trace comprises a plurality of first trace parts (UCE parts [0119]), part of the plurality of first trace parts are arranged at intervals in a first direction ([0119]); and the cathode layer (EL2) is located at one side of the cathode signal trace (UCE), covers the display region (pixel region of DD), and is electrically connected to the first trace part (UCE; [0078]); and the cathode signal trace (UCE) is configured to allow an ELVSS signal to be input to the cathode layer (EL2) through the plurality of first trace parts (UCE parts) in the display region (pixel region). Kim does not disclose part of the plurality of first trace parts are arranged at intervals in a second direction, and the second direction is different from the first direction. Nonetheless, Lee discloses a similar display device including similar cathode signal trace (figs 5A-B, 520) wherein a first trace part is implemented as a plurality of first trace parts, part of the plurality of first trace parts are arranged at intervals in a first direction (horizontal) and part of the plurality of first trace parts are arranged at intervals in a second direction (vertical), and the second direction is different from the first direction (vertical is different from horizontal). It would have been obvious to one of ordinary skill in the art before the effective filing of the claimed invention to extend the traces of Kim in both the horizontal and vertical directions as taught by Lee since this will further reduce the voltage drop of the cathode contact to the LEDs by decreasing the resistance of the cathode component of the display device. As to claim 4, Kim in view of Lee disclose the display panel of claim 1 (paragraphs above). Kim further discloses an anode layer (fig 2, EL1), a pixel definition layer (PDL), a light emitting layer (EML), and a signal transmitting layer (UCE layer), wherein the anode layer (EL1), the pixel definition layer (PDL), the light emitting layer (EML), and the signal transmitting layer (UCE layer) are all located at a same side of the cathode layer (EL2); the anode layer comprises a plurality of anodes (EL1 for ED-1, ED-2, ED-3), the pixel definition layer (PDL) is disposed on one side of the anode layer (EL1) facing towards the cathode layer (EL2), the pixel definition layer defines a plurality of pixel apertures (openings of PDL), and each of the plurality of pixel apertures extends through the pixel definition layer in a thickness direction of the pixel definition layer and exposes one of the plurality of anodes (openings in PDL expose EL1); the light emitting layer comprises a plurality of display pixels (EML-1, EML-2, EML-3), and each of the plurality of display pixels is disposed in one of the plurality of pixel apertures (apertures of PDL); and the signal transmitting layer (UCE layer) is disposed on a surface of the pixel definition layer (PDL) away from the anode layer (EL1), the signal transmitting layer (UCE layer) comprises the plurality of first trace parts (UCE extending in first direction), two adjacent first trace parts (UCE traces) are respectively located at two opposite sides of at least one anode (EL1), and the cathode layer (EL2) covers the pixel definition layer (PDL), the light emitting layer (EML), and the signal transmitting layer (UCE layer). Claim(s) 12 and 15 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kim in view of Wang et al. (US Pub. No. 2024/0407217 A1), hereafter referred to as Wang. As to claim 12, Kim discloses a display device (fig 1, DD), comprising: a display panel (DD); wherein the display panel has a display region (pixel region) and a non-display region (peripheral region) surrounding the display region (pixel region), the display panel comprises a cathode signal trace (UCE) and a cathode layer (EL2), the cathode signal trace is located in the display region (pixel region), the cathode signal trace comprises a plurality of first trace parts (parts of UCE), part of the plurality of first trace parts are arranged at intervals in a first direction (fig 2, parts of UCE); and the cathode layer (EL2) is located at one side of the cathode signal trace (UCE), covers the display region (pixel region), and is electrically connected to the first trace part (UCE; [0078]); and the cathode signal trace (UCE) is configured to allow an ELVSS signal to be input to the cathode layer (EL2) through the plurality of first trace parts (UCE parts) in the display region (pixel region). Kim does not explicitly disclose wherein the display device includes a display terminal comprising a housing and a display panel mounted on the housing. Nonetheless, Wang discloses a display device including a display terminal comprising a housing and a display panel mounted on the housing ([0131]). It would have been obvious to one of ordinary skill in the art before the effective filing of the claimed invention to include the display panel of Kim in a display terminal comprising a housing with the display panel mounted on the housing as taught by Wang since this apparatus increases the functionality of the display by incorporation in a terminal device. Kim does not disclose part of the plurality of first trace parts are arranged at intervals in a second direction, and the second direction is different from the first direction. Nonetheless, Wang discloses a similar display device including similar cathode signal trace (fig 3, 2) wherein a first trace part (21) is implemented as a plurality of first trace parts, part of the plurality of first trace parts are arranged at intervals in a first direction (horizontal) and part of the plurality of first trace parts are arranged at intervals in a second direction (vertical), and the second direction is different from the first direction (vertical is different from horizontal). It would have been obvious to one of ordinary skill in the art before the effective filing of the claimed invention to extend the traces of Kim in both the horizontal and vertical directions as taught by Wang since this will further reduce the voltage drop of the cathode contact to the LEDs by decreasing the resistance of the cathode component of the display device. As to claim 15, Kim in view of Wang disclose the display terminal of claim 12 (paragraphs above). Kim further discloses wherein the display panel (fig 2) further comprises: an anode layer (fig 2, EL1), a pixel definition layer (PDL), a light emitting layer (EML), and a signal transmitting layer (UCE layer), wherein the anode layer (EL1), the pixel definition layer (PDL), the light emitting layer (EML), and the signal transmitting layer (UCE layer) are all located at a same side of the cathode layer (EL2); the anode layer comprises a plurality of anodes (EL1 for ED-1, ED-2, ED-3), the pixel definition layer (PDL) is disposed on one side of the anode layer (EL1) facing towards the cathode layer (EL2), the pixel definition layer defines a plurality of pixel apertures (openings of PDL), and each of the plurality of pixel apertures extends through the pixel definition layer in a thickness direction of the pixel definition layer and exposes one of the plurality of anodes (openings in PDL expose EL1); the light emitting layer comprises a plurality of display pixels (EML-1, EML-2, EML-3), and each of the plurality of display pixels is disposed in one of the plurality of pixel apertures (apertures of PDL); and the signal transmitting layer (UCE layer) is disposed on a surface of the pixel definition layer (PDL) away from the anode layer (EL1), the signal transmitting layer (UCE layer) comprises the plurality of first trace parts (UCE extending in first direction), two adjacent first trace parts (UCE traces) are respectively located at two opposite sides of at least one anode (EL1), and the cathode layer (EL2) covers the pixel definition layer (PDL), the light emitting layer (EML), and the signal transmitting layer (UCE layer). Response to Arguments Applicant's arguments filed 7/7/2026 have been fully considered but they are not persuasive. Applicant argued: “Applicant respectfully submits that, in an existing OLED display panel, an ELVSS signal is usually transmitted to an OLED device cathode in a display region through a frame signal trace” and “Applicant respectfully submits that nowhere does Kim disclose any ELVSS signal, let alone "the cathode signal trace is configured to allow an ELVSS signal to be input to the cathode layer through the plurality of first trace parts in the display region."” and “As such, Kim fails to disclose "the cathode signal trace is configured to allow an ELVSS signal to be input to the cathode layer through the plurality of first trace parts in the display region" as recited in claim 1.” Examiner disagrees because Kim’s trace UCE includes the same structure such that the direct electrical connection is present between the cathode electrode and the trace. As such, the structure of Kim’s trace has the configuration such that it is configured to allow an ELVSS signal to be directly input to the cathode layer in the display region because the direct electrical connection occurs in the display region. Applicant argued: “nowhere does Lee mention any ELVSS signal, let alone the auxiliary electrode 520 configured to "allow an ELVSS signal to be input to the cathode layer through the plurality of first trace parts in the display region." Lee, therefore, fails to remedy the deficiencies of Kim.” Examiner disagrees because Kim, as addressed above, meets this claim limitation. Pertinent Art The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US Pub. No. 2019/0326376A1 and US Pub. No. 2022/0310740A1. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 SHAUN M CAMPBELL whose telephone number is (571)270-3830. The examiner can normally be reached on MWFS: 7:30-6pm Thurs 1-2pm. 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, Purvis, Sue can be reached at (571)272-1236. 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. /SHAUN M CAMPBELL/Primary Examiner, Art Unit 2893 8/14/2026
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Prosecution Timeline

Nov 16, 2023
Application Filed
Apr 23, 2026
Non-Final Rejection mailed — §103, §112
Jul 07, 2026
Response Filed
Aug 18, 2026
Final Rejection mailed — §103, §112 (current)

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Prosecution Projections

3-4
Expected OA Rounds
73%
Grant Probability
81%
With Interview (+8.6%)
2y 6m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1058 resolved cases by this examiner. Grant probability derived from career allowance rate.

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