FlexEnable OLCD never reached market

FlexEnable's Organic Liquid Crystal Display, or OLCD, used organic thin-film transistors on a plastic sheet instead of the glass backplane found in conventional LCDs. The Cambridge company, a UK spin-out from Plastic Logic, positioned OLCD as a lower-cost alternative to flexible OLED that could be built in existing LCD factories. A licensing deal with Chinese manufacturer Truly Semiconductors followed in 2018, and FlexEnable touted advantages in cost and conformability. OLCD never reached mass production. By 2023 the firm had shifted its public commercial focus to flexible liquid crystal optics for augmented and virtual reality, effectively ending the display push.

What OLCD Is and How It Works

OLCD stands for Organic Liquid Crystal Display. The backplane makes the difference. A standard LCD uses a glass sheet with inorganic transistors, typically amorphous silicon or LTPS, to control each pixel. FlexEnable replaced that with an organic thin-film transistor (OTFT) deposited on a flexible plastic carrier. The liquid crystal layer and colour filters sit on top, much as they do in a rigid LCD. Because the entire stack is built on plastic, the finished display can bend to a radius of a few millimetres without breaking.

The organic transistors are printed or coated at low temperatures, which keeps the plastic carrier from warping. That low-temperature process is also what lets FlexEnable claim that OLCD can be made on existing LCD production lines with only minor modifications. The company argued this gave OLCD a structural cost advantage over flexible OLED, which requires dedicated vacuum deposition equipment and encapsulation layers to protect the light-emitting materials from oxygen and moisture.

The Manufacturing Process: Transferring the OTFT Backplane to Plastic

FlexEnable's process started with a rigid glass carrier. The plastic sheet, a polyethylene naphthalate or polyimide film, was laminated onto the glass. The organic semiconductor, dielectric, and conductor layers were then deposited and patterned to form the transistor array. After the OTFT backplane was complete, the liquid crystal cell was assembled and the front-plane components were added. In the final step, the plastic stack was peeled off the glass carrier, leaving a free-standing flexible display.

This avoided the separate transfer step required by some other flexible display technologies that build the transistor layer on glass and then lift it off. FlexEnable claimed the yield was higher because the organic materials could be deposited at atmospheric pressure using slot-die coating or inkjet printing, rather than in a vacuum chamber. The company said this made the capital expenditure for an OLCD line roughly one-tenth that of a flexible OLED line, though it did not publish audited figures to support that claim.

The Truly Semiconductors Deal and the Path to Production

In 2018, FlexEnable signed a technology transfer and licensing agreement with Truly Semiconductors, a Chinese display manufacturer. The deal was intended to bring OLCD to mass production in an existing Truly LCD factory. FlexEnable would supply the OTFT know-how and materials. Truly would adapt its line and handle volume manufacturing. The companies initially targeted 2019 for the start of commercial output.

FlexEnable also raised funding that year from investors including Novares, a French automotive parts supplier, and ILIP, an Italian plastics firm. Novares's involvement signalled that automotive was a lead market. FlexEnable's OTFT platform was also being developed for flexible image sensors and fingerprint sensors on plastic, which could share the same backplane technology.

But the display deal was the company's most concrete step toward a commercial product, and it depended entirely on Truly delivering working panels at scale.

Target Markets: Automotive, Smart Home, and Digital Signage

FlexEnable identified three primary markets for OLCD. The first was automotive: curved dashboard displays, centre consoles, and pillar covers that could wrap around interior surfaces. A plastic display is lighter and less likely to shatter than glass in a crash, which automakers value. The second was smart home devices, where a thin, conformable screen could be integrated into appliances, thermostats, or wall panels. The third was retail signage, where large-area flexible displays could be mounted on curved pillars or shelving.

In all three cases, FlexEnable argued that OLCD offered a better cost-performance trade-off than flexible OLED. OLED could deliver deeper blacks and higher contrast, but for many indoor applications that was not necessary. OLCD could match the brightness and colour gamut of a standard LCD while bending, and it could be produced at a fraction of the cost. The company also pointed out that OLCD did not suffer from the burn-in issues that plague OLED in static signage applications.

Cost and Performance Claims Versus Flexible OLED

FlexEnable's central claim was that OLCD could be manufactured at lower cost than flexible OLED because it used existing LCD lines. A factory built for rigid glass panels could be converted to produce plastic OLCD panels with relatively modest investment in new coating and handling equipment. Flexible OLED, by contrast, requires a completely different manufacturing infrastructure: vacuum thermal evaporation or inkjet printing of light-emitting layers, plus thin-film encapsulation to prevent degradation.

The company also argued that OLCD was more durable than OLED for large-area applications. OLED's emissive layers degrade over time, especially at high brightness, limiting lifetime in always-on signage. OLCD uses an inorganic liquid crystal layer that does not degrade in the same way, so the display lifetime is determined by the backlight, which can be replaced. The trade-off was that OLCD needed a separate backlight, making it thicker and less power-efficient than self-emissive OLED. For automotive and signage, where thickness was less critical, FlexEnable judged the trade-off acceptable.

What Happened: The Pivot to AR/VR Optics

OLCD did not achieve mass-market adoption. As of 2023, FlexEnable had shifted its primary public focus to flexible liquid crystal optics for augmented and virtual reality headsets, rather than OLCD displays. The company's website and press releases from that period emphasised electrically tunable lenses and variable-focus optics, not flexible screens. The Truly Semiconductors deal appears to have lapsed without producing commercial volumes, though FlexEnable has not publicly stated whether the agreement was terminated or expired.

The pivot makes sense in retrospect. The AR/VR market was growing, and FlexEnable's OTFT platform could be adapted to control liquid crystal cells for optics rather than pixels. The company still uses the same plastic carrier and organic transistor technology, but the application changed. No OLCD display is known to have shipped in a commercial end-product. FlexEnable continues to operate from Cambridge, but its commercialisation efforts are now directed at a different market, and the OLCD display business is effectively closed.

Key Facts

Company: FlexEnable, spun out of Plastic Logic in 2015, headquartered in Cambridge, UK
Technology: Organic Liquid Crystal Display (OLCD) using organic thin-film transistor (OTFT) backplane on flexible plastic carrier
Key Partner: Truly Semiconductors, technology transfer and licensing agreement signed in 2018, targeted production in 2019
Investors (2018): Novares (automotive supplier) and ILIP (plastics company)
Target Markets: Automotive dashboards, smart home devices, retail signage
Claimed Advantage: Lower cost than flexible OLED; can use existing LCD production lines
Outcome: OLCD did not reach mass production; FlexEnable pivoted to flexible liquid crystal optics for AR/VR by 2023

Frequently Asked Questions

What is the difference between OLCD and a standard LCD?

OLCD replaces the glass sheet and inorganic transistors of a standard LCD with a flexible plastic carrier and organic thin-film transistors (OTFTs). This allows the display to bend.

Did FlexEnable's OLCD ever go into production?

There is no evidence that OLCD reached mass production. The company's licensing deal with Truly Semiconductors, announced in 2018, did not result in known commercial shipments. FlexEnable shifted its focus to AR/VR optics by 2023.

How does FlexEnable relate to Plastic Logic and PragmatIC?

FlexEnable was spun out of Plastic Logic in 2015, inheriting its OTFT expertise. PragmatIC is a separate UK company that also works on flexible electronics, but it focuses on low-cost RFID and NFC tags, not displays.