Mary Lou Jepsen

Mary Lou Jepsen
Jepsen in 2025
NationalityAmerican
Alma materBrown University
OccupationTechnology Pioneer
Known forCo-founder, One Laptop Per Child
WebsiteMaryLouJepsen.com

Mary Lou Jepsen is a technical executive and inventor in the fields of display, imaging, and computer hardware. She was the co-founder and first chief technology officer of One Laptop per Child (OLPC), and later founded Pixel Qi in Taipei, Taiwan, focused on the design and manufacture of displays. She founded and led two moonshots at Google X, and was an executive at Facebook / Oculus VR,[1] leading an effort to advance virtual reality.

Her contributions have had adoption in head-mounted displays, HDTV, laptop computers, and projector products. She contributed to low-cost computing and innovative consumer and medical imaging technologies. In 2008 Time magazine named her in their list of the hundred most influential scientists and thinkers in the world,[2] and in 2013 CNN named her as one of their "10 thinkers" for her work in display innovation.[3]

In 2016 Jepsen founded Openwater, a startup working on fMRI-type imaging of the body using holographic, ultrasonic and infrared techniques.[4] Over the years, Openwater's work expanded into therapeutics using infrared light and low intensity ultrasonics with extremely promising results with lifesaving potential to treat mental diseases, cancers and cardiovascular diseases [5] that have been in testing in pre-clinical and clinical since 2020 and are going into production in 2025. In addition all 68 patents from Openwater are free to use, the firm's software is open source via the AGPL license, and hardware designs (optics, ultrasound, mechanical, etc.) are freely available via Creative Commons Share-Alike 4.0.[6][7]

  1. ^ "Oculus Has Hired Mary Lou Jepsen Away From Google X". March 2, 2015.
  2. ^ Kahle, Brewster (May 12, 2008). "The 2008 TIME 100: Scientists & Thinkers - Mary Lou Jepsen". TIME.com. Archived from the original on May 3, 2008. Retrieved October 5, 2014. Jepsen, 43
  3. ^ "The CNN 10: Thinkers". CNN. Retrieved October 5, 2014.
  4. ^ "Mary Lou Jepsen on Life Post-Facebook and New Startup,"Open Water"". Xconomy. May 6, 2016. Retrieved April 13, 2017.
  5. ^ "Openwater raises $54M for open-source medical device tech,"Open Water"". August 22, 2024.
  6. ^ "She Left Google to Build Tech That Could Save Millions w/ Mary Lou Jepsen,"Open Water"". YouTube. January 17, 2025.
  7. ^ "Openwater raises $54M for open-source medical device tech,"Open Water"". August 22, 2024.

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