Prosecution Insights
Last updated: April 19, 2026
Application No. 18/592,483

ELECTRONIC PAPER DISPLAY DEVICE

Non-Final OA §103
Filed
Feb 29, 2024
Examiner
GAGNON, GRANT A
Art Unit
2872
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
E Ink Holdings Inc.
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
91%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allow Rate
381 granted / 453 resolved
+16.1% vs TC avg
Moderate +7% lift
Without
With
+6.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
38 currently pending
Career history
491
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
41.0%
+1.0% vs TC avg
§102
45.1%
+5.1% vs TC avg
§112
5.5%
-34.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 453 resolved cases

Office Action

§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 . Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement The IDS filed to date have been considered. 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(s) 1-18 is/are rejected under 35 U.S.C. 103 as being unpatentable over Jang (US 11395403) herein after referred to as D1, and further in view of Lim (US 11395403) herein after referred to as D2. With regard to claim 1, D1 teaches an electronic paper display device, in at least fig. 6A-6C); comprising: a frame (116); an upper protective layer (108 top) located on a top surface of the frame (116); a lower protective layer (108 bottom) located on a bottom surface of the frame (116); flexible substrate (106) extending from the upper protective layer (108 top) to the lower protective layer (108 bottom) and having a first area (106, area where 106 is on top of 108 top) located on the upper protective layer (108 top), a second area (106, area where 106 is on the bottom of 108 bottom) located on the lower protective layer (108 bottom), a bending area (106, curved portion), and two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106), wherein one of the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) is located between the first area (106, area where 106 is on top of 108 top) and the bending area (106, curved portion), and another one of the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) is located between the second area (106, area where 106 is on the bottom of 108 bottom) and the bending area (106, curved portion); and a front panel (110 and 114) located on the first area (106, area where 106 is on top of 108 top) of the flexible substrate (106) (106). However, D1 does not expressly disclose a reinforcing layer located on the first area, the second area, the bending area, and the two non-deformed areas of the flexible substrate (106). In a related endeavor, D2 teaches a flexible display device, in at least (Fig. 34); comprising a reinforcing layer (412) located on the first area (NBA Top), the second area (NBA bottom), the bending area (BA), and the two non-deformed areas (Fig. 35, areas right of the BA and between the BA and marked NBA area) of the flexible substrate (106) (100) Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide the invention of D1 with the reinforcing layer located on the first area, the second area, the bending area, and the two non-deformed areas of the flexible substrate (106), of D2. For the purpose of better protecting and strengthening the overall display device from any external forces. With regard to claim 2, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, wherein D1 further teaches a display device, in at least (6A-6C); wherein a width of each of the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) of the flexible substrate (106) is less than or equal to a bend radius of the bending area (106, curved portion) (Col. 32, Ln. 36-43; uniform thickness). With regard to claim 3, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, wherein D1 further teaches a display device, in at least (6A-6C); wherein the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) of the flexible substrate (106) respectively extend from the upper protective layer (108 top) and the lower protective layer (108 bottom), such that the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) suspend in mid-air (both top and bottom of 106 in the area between the bend and the non-bend area have areas with no support). With regard to claim 4, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, wherein D1 further teaches a display device, in at least (6A-6C); wherein two opposite edges of each of the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) of the flexible substrate (106) adjoin the bending area (106, curved portion) and one of the first area (106, area where 106 is on top of 108 top) and the second area (106, area where 106 is on the bottom of 108 bottom). With regard to claim 5, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, wherein D1 further teaches a display device, in at least (6A-6C); wherein the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) of the flexible substrate (106) overlap with each other in a vertical direction (Fig. 4; both open areas beneath 106 can be seen in vertical alignment. With regard to claim 6, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, wherein D1 further teaches a display device, in at least (6A-6C); wherein the one of the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) does not overlap with the upper protective layer (108 top) in a vertical direction, and the another one of the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) does not overlap with the lower protective layer (108 bottom) in the vertical direction (Fig. 6A; upper NDA is pushed out further than the lower NDA). With regard to claim 7, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, however, D1 does not expressly disclose a display device, in at least (6A-6C); wherein the reinforcing layer has two strengthened areas, and the two strengthened areas respectively overlap with the two non-deformed areas of the flexible substrate. In a related endeavor, D1 teaches a display device, in at least (figures 32-35); wherein the reinforcing layer (400) has two strengthened areas (411 and 421), and the two strengthened areas (411 and 421) respectively overlap with the two non-deformed areas (NBA) of the flexible substrate (100). With regard to claim 8, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, wherein D1 further teaches a display device, in at least (6A-6C); wherein a sidewall of the frame (116), a sidewall of the upper protective layer (108 top) and a sidewall of the lower protective layer (108 bottom) are aligned with each other in a vertical direction (fig. 4; 108 and 116 are aligned). With regard to claim 9, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, wherein D1 further teaches a display device, in at least (6A-6C); wherein a sidewall of the frame (116) is recessed (Fig. 4, shows the bottom side where 116 protrudes, and top side where it is recessed) from a sidewall of the upper protective layer (108 top) and a sidewall of the lower protective layer (108 bottom). With regard to claim 10, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, wherein D1 further teaches a display device, in at least (6A-6C); wherein a sidewall of the frame (116) protrudes Fig. 4, shows the bottom side where 116 protrudes, and top side where it is recessed) from a sidewall of the upper protective layer (108 top) and a sidewall of the lower protective layer (108 bottom). With regard to claim 11, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, wherein D1 further teaches a display device, in at least (6A-6C); wherein the frame (116) protruding Fig. 4, shows the bottom side where 116 protrudes, and top side where it is recessed) from the sidewall of the upper protective layer (108 top) and the sidewall of the lower protective layer (108 bottom) overlaps with each of the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) of the flexible substrate (106). With regard to claim 12, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, wherein D1 further teaches a display device, in at least (6A-6C); wherein the front panel (110 and 114) comprises a front protective sheet (114), a display medium layer (110) located between the front protective sheet (114) and the first area (106, area where 106 is on top of 108 top) of the flexible substrate (106), and a function layer located on the front protective sheet. With regard to claim 13, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 1, wherein D1 further teaches a display device, in at least (6A-6C); further comprising: a chip (Col. 4, Ln. 31-44; chip on film); located on the second area (106, area where 106 is on the bottom of 108 bottom) of the flexible substrate (106). With regard to claim 14, D1 teaches an electronic paper display device, comprising: a frame (116); an upper protective layer (108 top) located on a top surface of the frame (116); a lower protective layer (108 bottom) located on a bottom surface of the frame (116); a flexible substrate (106) extending from the upper protective layer (108 top) to the lower protective layer (108 bottom) and having a first area (106, area where 106 is on top of 108 top) located on the upper protective layer (108 top), a second area (106, area where 106 is on the bottom of 108 bottom) located on the lower protective layer (108 bottom), a bending area (106, curved portion), and two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106), wherein the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) respectively extend from the upper protective layer (108 top) and the lower protective layer (108 bottom), and two edges of the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) respectively away from the first area (106, area where 106 is on top of 108 top) and the second area (106, area where 106 is on the bottom of 108 bottom) adjoin the bending area (106, curved portion); and a front panel (110 and 114) located on the first area (106, area where 106 is on top of 108 top) of the flexible substrate (106). However, D1 does not expressly disclose a reinforcing layer located on the first area, the second area, the bending area, and the two non-deformed areas of the flexible substrate (106). In a related endeavor, D2 teaches a flexible display device, in at least (Fig. 34); comprising a reinforcing layer (412) located on the first area (NBA Top), the second area (NBA bottom), the bending area (BA), and the two non-deformed areas (Fig. 35, areas right of the BA and between the BA and marked NBA area) of the flexible substrate (106) (100) Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide the invention of D1 with the reinforcing layer located on the first area, the second area, the bending area, and the two non-deformed areas of the flexible substrate (106), of D2. For the purpose of better protecting and strengthening the overall display device from any external forces. With regard to claim 15, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 14, wherein D1 further teaches a display device, in at least (6A-6C); further comprising: a chip (Col. 4, Ln. 31-44; chip on film); located on the second area (106, area where 106 is on the bottom of 108 bottom) of the flexible substrate (106); and a flexible circuit board located on the second area (106, area where 106 is on the bottom of 108 bottom) of the flexible substrate (106) and electrically connected to the chip (Col. 4, Ln. 31-44; chip on film);. With regard to claim 16, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 14, wherein D1 further teaches a display device, in at least (6A-6C); wherein a width of each of the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) of the flexible substrate (106) is less than or equal to a bend radius of the bending area (106, curved portion) (Col. 32, Ln. 36-43; uniform thickness). With regard to claim 17, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 14, wherein D1 further teaches a display device, in at least (6A-6C); wherein the two non-deformed areas (106, area between the portion of 106 that touches 108, and the distinctly curved portion of 106) of the flexible substrate (106) overlap with each other in a vertical direction (fig 6A, all overlap). With regard to claim 18, D1 in view of D2 teach all of the claimed limitations of the instant invention as have been outlined above with respect to claim 14, wherein D1 further teaches a display device, in at least (6A-6C); wherein a sidewall of the upper protective layer (108 top), a sidewall of the frame (116), and a sidewall of the lower protective layer (108 bottom) define a vertical plane, a recess structure, or a protruding structure (fig. 4, shows the frame in both a protruding and recessed structure). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to GRANT A GAGNON whose telephone number is (571)270-0642. The examiner can normally be reached M-F 7:30-5:30. 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, Bumsuk Won can be reached at (571) 272-2713. 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. /GRANT A GAGNON/ Examiner, Art Unit 2872 /BUMSUK WON/ Supervisory Patent Examiner, Art Unit 2872
Read full office action

Prosecution Timeline

Feb 29, 2024
Application Filed
Mar 23, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

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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
84%
Grant Probability
91%
With Interview (+6.9%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 453 resolved cases by this examiner. Grant probability derived from career allow rate.

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