Pixel Qi

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Pixel Qi Corporation
Company typePrivately held company
IndustryElectronic visual displays
FounderMary Lou Jepsen

Pixel Qi Corporation (pronounced Pixel "Chi") was an American company involved in the research of low-power computer display technology, based in San Bruno, California.[1] It was founded by Mary Lou Jepsen, who was previously the chief technical officer of the One Laptop per Child project.[2]

A Pixel Qi screen installed in an OLPC XO laptop operating in reflective mode, the screen is in grey scale mode and is not retro illuminated
A Pixel Qi screen installed in an OLPC XO laptop operating in transmissive mode, the screen is in color mode and is retro illuminated

The company designed liquid crystal displays (LCDs) that can be largely manufactured using the existing manufacturing infrastructure for conventional LCDs. The advantage of Pixel Qi displays over conventional LCDs is mainly that they can be set to operate under transflective mode and reflective mode, improving eye-comfort, power usage, and visibility under bright ambient light.[2]

By 2015, PixelQi's team and offices were unreachable, and the company is presumed defunct.[3] The intellectual property is now owned by the original investor of Pixel Qi, while the right to manufacture Pixel Qi technology contractually rests with Tripuso Display Solutions.[4][5]


  • The first commercial device to use a Pixel Qi display, ARM-based Adam tablet by Notion Ink, was released mid-January 2011.[6]
  • Another tablet with a Pixel Qi display has been announced by Innoversal, named Lattice.;[7]
  • Clover Systems has launched SunBook, a netbook with a Pixel Qi display.[8]
  • The first ruggedized, MIL-SPEC tablet utilizing Pixel Qi, the Hydra-T3,[9] was created by InHand Electronics, Inc. and launched Q1 of 2012.[10]


  1. ^ "Pixel Qi Promises Cheap, Readable, Low-Power Displays". Wired. 12 May 2009. Retrieved 29 December 2009.
  2. ^ a b "The Hunt For The Perfect Screen". Gizmodo. 28 December 2009. Retrieved 29 December 2009.
  3. ^ Kozlowski, Michael (12 January 2015). "Pixel QI is Officially out of Business". goodereader.com. Good e-Reader. Retrieved 2 October 2018. Currently nobody knows the exact status of Pixel QI. The executive team all fled, the main phone number for their headquarters in California is out of service, as is their satellite office in Texas. None of the email address I have gained over the last five years are working anymore. This includes their entire executive team, IT department and press office.
  4. ^ Hoffelder, Nate (12 January 2015). "Reports of the Death of Pixel Qi Were Somewhat Exaggerated". the-digital-reader.com. The Digital Reader. Retrieved 2 October 2018. The IP is now owned by the original investor of Pixel Qi. We will need to wait for Pixel Qi formal announcement for the details. Tripuso Display Solutions has the right to manufacture Pixel Qi technology by contract.
  5. ^ Quinn, T. Allen (17 May 2015). "Pixel Qi and Tripuso Display Systems". The Infinite Grid. Quinn Enterprises International. Archived from the original on 2015-05-28. Retrieved 2 October 2018. ...we will also be the I.T. service provider to Tripuso Display Solutions where we will re-design and relaunch the Pixel Qi website with updated details relating to the recent news on Pixel Qi's new life.
  6. ^ ""Pre-order shipping date is slipping" blog posted 15 Dec 2010". Archived from the original on 19 December 2010. Retrieved 3 January 2011.
  7. ^ "Products - Lattice". Innoversal Communications. Archived from the original on 2012-03-13. Retrieved 2012-03-01.
  8. ^ "SunBook". Clover Systems. Archived from the original on 2012-02-19. Retrieved 2012-03-01.
  9. ^ InHand. "Hydra-T3". InHand. Retrieved 2018-10-02.
  10. ^ "Custom Tablets Manufacturers USA | Inhand Electronics". Inhand.com. Retrieved 2018-10-02.[dead link]