Prosecution Insights
Last updated: April 19, 2026
Application No. 18/493,431

DISPLAY DEVICE INCLUDING TRANSISTOR SUPPLYING INITIALIZATION VOLTAGE

Non-Final OA §102§103
Filed
Oct 24, 2023
Examiner
SCHNIREL, ANDREW B
Art Unit
2625
Tech Center
2600 — Communications
Assignee
Samsung Display Co., Ltd.
OA Round
5 (Non-Final)
50%
Grant Probability
Moderate
5-6
OA Rounds
3y 7m
To Grant
44%
With Interview

Examiner Intelligence

Grants 50% of resolved cases
50%
Career Allow Rate
241 granted / 482 resolved
-12.0% vs TC avg
Minimal -6% lift
Without
With
+-6.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
39 currently pending
Career history
521
Total Applications
across all art units

Statute-Specific Performance

§101
2.0%
-38.0% vs TC avg
§103
55.3%
+15.3% vs TC avg
§102
25.6%
-14.4% vs TC avg
§112
14.4%
-25.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 482 resolved cases

Office Action

§102 §103
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on February 20, 2026 has been entered. 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 (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 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 14 and 16 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Jeon et al. (U.S. PG Pub 2021/0319747). Regarding Claim 14, Jeon et al. teaches a display device comprising: a display panel (Figure 1, Element 100. Paragraph 36) comprising: a display area (Figure 1, Element 110. Paragraph 37) including: a plurality of pixels (Figure 1, Element P. Paragraph 39), each of the plurality of pixels (Figure 1, Element P. Paragraph 39) comprising: a light-emitting element (Figure 6, Element OLED. Paragraph 127); a first transistor (Figure 6, Element T1. Paragraph 114) which controls a driving current (Figure 6, Element ELVDD. Paragraph 115) which flows in the light-emitting element (Figure 6, Element OLED. Paragraph 127); a second transistor (Figure 6, Element T2. Paragraph 116) which supplies a data voltage (Figure 6, Element Vdata. Paragraph 116) to a first electrode of the first transistor (Figure 6, Element T1. Paragraph 114); a third transistor (Figure 6, Element T3. Paragraphs 117 - 119) electrically connecting a second electrode (Figure 6, Element N3. Paragraph 114) of the first transistor (Figure 6, Element T1. Paragraph 114) and a gate electrode (Figure 6, Element N1. Paragraph 114) of the first transistor (Figure 6, Element T1. Paragraph 114); and a fourth transistor (Figure 6, Element T4. Paragraphs 121 - 123) which discharges the gate electrode (Figure 6, Element N1. Paragraph 114) of the first transistor (Figure 6, Element T1. Paragraph 114) with a first initialization voltage (Figure 6, Element Vinit1. Paragraph 130); a first gate line (Figure 6, Element SLn. Paragraph 120) connected to a gate electrode of the third transistor (Figure 6, Element T3. Paragraphs 117 - 119), the first gate line (Figure 6, Element SLn. Paragraph 120) which receives a first gate signal (Figure 6, Element Sn. Paragraph 120); a second gate line (Figure 6, Element SLn-1. Paragraph 124) connected to a gate electrode of the fourth transistor (Figure 6, Element T4. Paragraphs 121 - 123), the second gate line (Figure 6, Element SLn-1. Paragraph 124) which receives a second gate signal (Figure 6, Element Sn-1. Paragraph 124); a first bias voltage line (Figure 6, Element SLn. Paragraph 120) which supplies a first bias voltage (Figure 6, Element Sn. Paragraph 120) to a bias electrode of the third transistor (Figure 6, Element T3. Paragraphs 117 - 119); a second bias voltage line (Figure 6, Element IVL1. Paragraphs 122 - 123) which supplies a second bias voltage (Figure 6, Element Vinit1. Paragraph 130) different from the first bias voltage (Figure 6, Element Sn. Paragraph 120) to a bias electrode of the fourth transistor (Figure 6, Element T4. Paragraphs 121 - 123), and a first initialization voltage (Figure 6, Element Vinit1. Paragraph 130) line which supplies an initialization voltage (Figure 6, Element Vinit1. Paragraph 130) to an electrode of the fourth transistor (Figure 6, Element T4. Paragraphs 121 - 123); and a non-display area (Figure 1, Element not labeled, but is the remainder of Element 100 that is outside Element 110. Paragraph 37) surrounding the display area (Figure 1, Element 110. Paragraph 37). Regarding Claim 16, Jeon et al. teaches the display device of claim 14 (See Above), wherein the first bias voltage (Figure 6, Element Sn. Paragraph 120) line (Figure 6, Element SLn. Paragraph 120) is electrically insulated from a gate electrode of the third transistor (Figure 6, Element T3. Paragraphs 117 - 119), and the second bias voltage (Figure 6, Element Vinit1. Paragraph 130) line (Figure 6, Element IVL1. Paragraphs 122 - 123) is electrically insulated from a gate electrode of the fourth transistor (Figure 6, Element T4. Paragraphs 121 - 123). 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. Claim 15 is rejected under 35 U.S.C. 103 as being unpatentable over Jeon et al. (U.S. PG Pub 2021/0319747) in view of Kwon et al. (U.S. PG Pub 2019/0059156). Regarding Claim 15, Jeon et al. teaches the display device of claim 14 (See Above). Jeon et al. is silent with regards to further comprising a circuit board which supplies voltages and signals to the display panel, wherein the display panel further comprises a display pad unit connected to the circuit board, and wherein the non-display area comprises a bias lead line electrically connecting the first bias voltage line or the second bias voltage line to the display pad unit. Kwon et al. teach further comprising a circuit board (Figures 1 and 2, Element 120. Paragraph 23) which supplies voltages and signals to the display panel (Figures 1 and 2, Element 110. Paragraph 23), wherein the display panel (Figures 1 and 2, Element 110. Paragraph 23) further comprises a display pad unit (Figure 1, Element MA. Paragraph 26) connected to the circuit board (Figures 1 and 2, Element 120. Paragraph 23), and wherein the non-display area (Figure 1, Element BA. Paragraph 26) comprises a bias lead line electrically connecting the first bias voltage line (Paragraph 55) or the second bias voltage line to the display pad unit (Figure 1, Element MA. Paragraph 26). It would have been obvious to a person of ordinary skill in the art to modify the teachings of the display device of Jeon et al. with the non-display panel of Kwon et al. The motivation to modify the teachings of Jeon et al. with the teachings of Kwon et al. is to provide a display device capable of minimizing short circuits between pads, as taught by Kwon et al. (Paragraph 5). Allowable Subject Matter Claim 1 – 12 and 17 – 20 are allowed. The following is an examiner’s statement of reasons for allowance: The prior art of record fails to teach at least “wherein the semiconductor area of the fourth transistor in the first pixel and the semiconductor area of the fourth transistor in the second pixel are symmetrical with respect to semiconductor area of the fourth-first transistor” in combination with the limitations of Claim 1. Claims 2 – 13 and 22 – 23 inherit these reasons for allowance. The following is an examiner’s statement of reasons for allowance: The prior art of record fails to teach at least “a first initialization voltage line which supplies a first initialization voltage to the plurality of pixels; a second initialization voltage line which supplies a second initialization voltage different from the first initialization voltage to the plurality of pixels;…wherein the fourth transistor discharges the gate electrode of the first transistor with the first initialization voltage;…the seventh transistor electrically connects the first electrode of the light emitting element and the second initialization voltage line, wherein the first and second initialization voltage lines are disposed between immediately neighboring rows of some of the plurality of rows and are not disposed between immediately neighboring rows of some others of the plurality of rows in a manner that pixels arranged in a same column and respectively disposed in the immediately neighboring rows of the some others of the plurality of rows among the plurality of pixels directly face each other” of Claim 17 in combination with the other limitations of Claim 17. Claims 18 – 20 inherit these reasons for allowance. The examiner notes that the applicant’s explanation of the above limitation is accepted. The applicant has disclosed (See Remarks (July 31, 2025), Page 25 of 27): PNG media_image1.png 630 484 media_image1.png Greyscale Given the applicant’s interpretation of the limitation “are not disposed between immediately neighboring rows of some others of the plurality of rows in a manner that pixels arranged in a same column and respectively disposed in the immediately neighboring rows of the some others of the plurality of rows among the plurality of pixels directly face each other” is being interpreted as the pixels in immediately neighboring rows are disposed without the insertion of any other lines and/or components. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Response to Arguments All other arguments are considered moot in light of the new grounds of rejection presented above. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure: Kim et al. (U.S. PG Pub 2021/0125543) teach a pixel circuit and driving timings similar to the instant invention. Shi et al. (U.S. PG Pub 2022/0328603) and Liu et al. (U.S. PG Pub 2023/0317011) teach a pixel circuit similar to the instant pixel circuit. Ebisuno et al. (U.S. PG Pub 2018/0040682) teach a pixel circuit with fourth electrode connections for some of the transistors in the pixel circuit, similar to the instant invention. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANDREW B SCHNIREL whose telephone number is (571)270-7690. The examiner can normally be reached Monday - Friday, 10 - 6 EST. 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, William Boddie can be reached at 571-272-0666. 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. /A.B.S/Examiner, Art Unit 2625 /WILLIAM BODDIE/Supervisory Patent Examiner, Art Unit 2625
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Prosecution Timeline

Oct 24, 2023
Application Filed
Jun 15, 2024
Non-Final Rejection — §102, §103
Oct 28, 2024
Response Filed
Nov 15, 2024
Final Rejection — §102, §103
Jan 17, 2025
Response after Non-Final Action
Feb 24, 2025
Request for Continued Examination
Feb 25, 2025
Response after Non-Final Action
Apr 19, 2025
Non-Final Rejection — §102, §103
Jul 17, 2025
Interview Requested
Jul 28, 2025
Examiner Interview Summary
Jul 28, 2025
Applicant Interview (Telephonic)
Jul 30, 2025
Response Filed
Nov 11, 2025
Final Rejection — §102, §103
Jan 21, 2026
Response after Non-Final Action
Feb 20, 2026
Request for Continued Examination
Feb 24, 2026
Response after Non-Final Action
Feb 27, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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DISPLAY PANEL AND DISPLAY APPARATUS HAVING IMPROVED SCREEN-TO-BODY RATIO
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Patent 12573330
DISPLAY DRIVING CIRCUIT CONFIGURED TO PERFORM DRIVING IN VARIOUS MODES AND DRIVING METHOD THEREOF
2y 5m to grant Granted Mar 10, 2026
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METHOD AND APPARATUS FOR VIRTUALIZING A COMPUTER ACCESSORY
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Patent 12517604
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2y 5m to grant Granted Jan 06, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
50%
Grant Probability
44%
With Interview (-6.3%)
3y 7m
Median Time to Grant
High
PTA Risk
Based on 482 resolved cases by this examiner. Grant probability derived from career allow rate.

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