Exhibit 3.1

CERTIFICATE OF AMENDMENT

TO

THE CERTIFICATE OF INCORPORATION

OF

CROWN ELECTROKINETICS CORP.

Crown Electrokinetics Corp. (the “Corporation”), a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware (the “DGCL”), does hereby certify:

FIRST. The Amended and Restated Certificate of Incorporation of the Corporation is hereby amended by changing Article Four, so that, as amended, the following Section C shall be added after Section B:

“C. Reverse Stock Split. Effective at 11:59 p.m., Eastern Time, on August 14, 2023 (the “Reverse Split Effective Time”), every sixty (60) shares of Common Stock issued and outstanding or held by the Corporation as treasury shares as of the Reverse Split Effective Time shall automatically, and without action on the part of the stockholders, be combined, reclassified and changed into one (1) validly issued, fully paid and non-assessable share of Common Stock, without effecting a change to the par value per share of Common Stock, subject to the treatment of fractional interests as described below (the “Reverse Split”). Notwithstanding the immediately preceding sentence, no fractional shares will be issued in connection with the combination effected by the preceding sentence. In lieu of any fractional shares, the Corporation will issue to stockholders of record who would otherwise be entitled to receive a fractional share because the number of shares of Common Stock they hold of record before the Reverse Split is not evenly divisible by the Reverse Split ratio that number of shares of Common Stock as rounded up to the nearest whole share. No stockholders will receive cash in lieu of fractional shares. As of the Split Effective Time and thereafter, a certificate(s) representing shares of Common Stock prior to the Reverse Split is deemed to represent the number of post-Reverse Split shares into which the pre-Reverse Split shares were reclassified and combined. The Reverse Split shall also apply to any outstanding securities or rights convertible into, or exchangeable or exercisable for, Common Stock of the Corporation and all references to such Common Stock in agreements, arrangements, documents and plans relating thereto or any option or right to purchase or acquire shares of Common Stock shall be deemed to be references to the Common Stock or options or rights to purchase or acquire shares of Common Stock, as the case may be, after giving effect to the Reverse Split.”

SECOND. That a resolution was duly adopted by unanimous written consent of the directors of the Corporation, pursuant to Section 242 of the DGCL, setting forth the above mentioned amendment to the Amended and Restated Certificate of Incorporation and declaring said amendment to be advisable.

THIRD. That this amendment was duly authorized by the holders of a majority of the voting stock of the Corporation by written consent of the stockholders of the Corporation. Said amendment was duly adopted in accordance with the provisions of the DGCL.

IN WITNESS WHEREOF, this Certificate of Amendment of the Amended and Restated Certificate of Incorporation has been signed by the Chief Executive Officer of the Corporation this 11^th day of August, 2023.