Planar Systems, Inc. is a U.S. digital display manufacturing corporation based in Hillsboro, Oregon. Founded in 1983 as a spin-off from Tektronix, it was the first U.S. manufacturer of electroluminescent (EL) digital displays. Planar currently makes a variety of other specialty displays. It is a subsidiary of Shenzhen, China-based Leyard Optoelectronic Co..

Planar was founded in 1983 by Jim Hurd, Chris King, John Laney and others as a spin-off from the Solid State Research and Development Group of the Beaverton, Oregon, based Tektronix. In 1986, a division spun off from Planar to work on projection technology, InFocus.

In 1991, FinLux, a competitor in Espoo, Finland was purchased and is now the company's European headquarters. Planar's executives took the company public in 1993, listing the stock on the NASDAQ boards Planar acquired Tektronix's avionics display business, creating the short-lived Planar Advance in 1994. Standish Industries, a manufacturer of flat panel LCDs in Lake Mills, Wisconsin, was sold to Planar in 1997. This plant was closed in 2002 as worldwide LCD manufacturing shifted to East Asian countries.

On April 23, 2002, DOME Imaging Systems was purchased by Planar and became the company's medical business unit. Planar acquired Clarity Visual Systems (founded by former InFocus employees) on September 12, 2006, now referred to as the Control Room and Signage business unit. On May 23, 2007, Planar acquired Runco International, a leading brand in the high-end, custom home theater market. On August 6, 2008, Planar sold its medical business unit to NDS Surgical Imaging.

In November 2012, Planar announced the sale of its electroluminescent business to Beneq Oy, a supplier of production and research equipment for thin film coatings. Under the terms of the transaction, consideration consists of a $6.5 million base purchase price, of which $3.9 million was paid in cash at closing and $2.6 million was paid in the form of a promissory note. Planar was purchased by Leyard Optoelectronic Co. of China in 2015 for $157 million. It became a subsidiary after formerly trading on the NASDAQ under the symbol PLNR.

In November 2016, Planar announced that it was to enter a merger agreement with NaturalPoint Inc., which sells infrared point tracking systems for use on CGI movie sets (Optitrack), and home use both for assisted computing (Smartnav) and computer gaming (TrackIR). The merger was finalized in January 2017. NaturalPoint will remain a separate business with its own executive team, customers, and market initiatives.

Planar currently assembles and services videowalls, projectors, and other displays in Hillsboro. Planar's EL manufacturing operations were consolidated into Planar's Espoo, Finland facility in 2002. Additional large-format displays are assembled and integrated in Albi, France.

On November 27, 2015, Planar closed its sale to become a subsidiary of Leyard Optoelectronic Co., an LED display product corporation. With the merger, Planar increased its capabilities to offer indoor, outdoor, fixed and creative LED display solutions. Headquarters operations for Planar remain in Beaverton, OR following the sale.

In addition to its Oregon, U.S. headquarters, Planar has worldwide reach. Its sales offices are located in Europe, North America, and Asia. It has manufacturing facilities in France, North America, and Finland.