Japan Display Brand Guidelines: Three Rivals’ Screen Arms in One Tokyo Company

A state-backed merger of three display businesses.

Japan Display Inc., usually shortened to JDI, is a Tokyo maker of small and medium-sized displays, and it was assembled from three older businesses. On 31 August 2011 Sony, Toshiba and Hitachi agreed, together with the state-backed fund Innovation Network Corporation of Japan (INCJ), to combine their small and mid-sized LCD operations, English and Japanese Wikipedia say. The formal agreement followed on 15 November 2011, and JDI began operating on 1 April 2012, the business start date the company gives on its own outline page.

The three operating companies, Sony Mobile Display, Toshiba Mobile Display and Hitachi Displays, carried on for a year as Japan Display West, Central and East. In April 2013 they were merged into a single company, with the former Hitachi Displays as the surviving entity, Japanese Wikipedia says.

Those businesses had long roots. Japanese Wikipedia traces JDI’s Mobara plant in Chiba Prefecture to Riken Vacuum Industry, set up there in 1935 to make vacuum tubes and lamps; in 1943 it was merged into Hitachi under wartime industrial consolidation and became Hitachi’s Mobara works. The site moved on to cathode-ray tubes in 1958, calculator LCDs in 1974 and, from 1996, LCDs using in-plane switching (IPS), which the same article calls the first IPS panels in mass production. Hitachi spun its display business off as Hitachi Displays in 2002.

The other partners brought their own technology. Japanese Wikipedia credits Toshiba with putting low-temperature polysilicon (LTPS) backplanes into practical use in 1997, and Sony’s mobile display arm with the in-cell touch technology later sold as Pixel Eyes, which builds the touch sensor into the LCD itself. JDI listed on the first section of the Tokyo Stock Exchange on 19 March 2014.

Investors, an accounting case and factory sales.

For several years JDI’s fortunes were tied to smartphones. Japanese Wikipedia says its LCDs were used in Apple’s top iPhone models from the iPhone 5 of 2012 to the iPhone 7 of 2016, and English Wikipedia names it as a display supplier for the Nintendo Switch until 2017. As phone makers moved to OLED, demand for its LCDs fell. In 2017 JDI announced a restructuring plan that included closing a production line in Japan and cutting about a third of its workforce, English Wikipedia says.

In 2019 the company looked for new investors. A consortium of Chinese and Taiwanese investors signed a memorandum and then withdrew in stages, and in early 2020 the independent Japanese investment group Ichigo became its lead sponsor and largest shareholder, according to both Wikipedias. INCJ, which had backed JDI since its formation, sold the last of its shares by March 2025, Japanese Wikipedia says.

The same period brought an accounting case. In November 2019 JDI disclosed an embezzlement by a former senior employee and an allegation that improper accounting had taken place; a third-party committee reported in April 2020 that improper accounting had been carried out from soon after the stock-market listing, Japanese Wikipedia says.

Factories then changed hands. The Hakusan plant in Ishikawa, built for smartphone LCDs and started in December 2016, was idled in 2019; JDI sold its land and buildings to Sharp and its production equipment to Apple, completing the sale on 2 October 2020. The Higashiura plant closed in March 2023 and the Tottori plant ended production in March 2025. In February 2025 JDI decided to end panel production at Mobara and concentrate it at its Ishikawa plant; Mobara stopped producing panels in November 2025.

On 30 September 2026 JDI signed a contract to transfer Mobara’s land and buildings to the package maker Shinko Electric Industries, with handover planned for 31 March 2027, the corporate-history site The Shashi reported on 1 October 2026 from JDI’s filings. At the time of writing that handover had not taken place.

JDI also spent years on OLED. In August 2014 it agreed to an INCJ-led plan to combine the OLED businesses of Sony and Panasonic into a new company, JOLED, in which JDI took a stake; JOLED filed for civil rehabilitation in March 2023, and JDI announced it would take over its business. In June 2022 JDI announced eLEAP, a production process it presents as a next-generation OLED, and in February 2025 it gave up producing eLEAP panels itself, Japanese Wikipedia says.

How display makers present themselves.

Display-panel makers sell to other companies, so most people meet their work under someone else’s name: the screen in a phone, a television, a laptop or a car dashboard. Their own identities are built for customers, investors and engineers, and they come into view most clearly at trade shows such as the Society for Information Display’s Display Week in the United States and CES in Las Vegas, where makers book large stands to show what their panels can do.

The visual language of those stands is the product itself. Huge curved screens, rollable televisions that rise out of a base and transparent panels set in shop windows or furniture sit beside foldable phones photographed mid-fold and car cockpits wrapped in a single sweep of glass. Close-up photography does the rest: macro shots of red, green and blue sub-pixels, flexible films bent between two fingers and wafer-thin edges seen side-on.

Behind the show floor sits the factory. Company films and reports often show clean fab halls, workers in full-body suits and large sheets of glass substrate carried by robot arms, with plants described by “generation,” a measure of the glass size each line handles. Industry awards add another layer of presentation: Display Week’s Display of the Year awards and CES Innovation Awards appear in the makers’ own timelines.

Their histories run through joint ventures, factory sales and regulatory cases as much as through product launches. This guide sets out what can be checked about each one — who founded it, who owns it and where its panels are made — and marks clearly what rests only on the company’s own word.

From iPhone screens to camera, car and sensing displays.

Today JDI gives its headquarters as Shinagawa, Tokyo, on its company outline page, which lists display devices alongside electrical equipment, electronic devices and software among its lines of business. With Mobara and Tottori closed, its panel production in Japan is concentrated at Ishikawa, Japanese Wikipedia says.

Its technology names carry most of the brand. English Wikipedia lists three display types under research and production as of 2020, LCD, OLED and microLED, and records a 1.6-inch microLED module announced in December 2019 and a 12.3-inch transparent LCD prototype shown in November 2019. JDI’s own releases describe WhiteMagic, an LCD that pairs red, green, blue and white sub-pixels with signal processing, and say that in November 2026 it began mass production of a WhiteMagic PRO module for a digital camera maker, with shipments starting that month. In October 2026 it announced it would show LumiFree, a light-distribution control system, at the Hong Kong International Lighting Fair, and sensing products at ROBOTECH 2026.

Japanese Wikipedia describes JDI as now mainly making small LCDs used in cars and similar products; it says Apple ended its LCD purchases in 2024, when every iPhone model had moved to OLED.

For a design guide, Japan Display shows how a company built from three rivals’ display units presents itself through engineering names, IPS, LTPS, Pixel Eyes and WhiteMagic, rather than through a consumer product of its own. Compare Sony, one of its three founding parents, and Sharp Display Technology, which took over its Hakusan site. For this guide we use a deep indigo, slate and a cool cyan with a sans, an unofficial interpretation; no product or logo is reproduced.

Keep Japan Display’s identity on hand — save it to a board in the Made Good inspiration library.