Taiwan's Display Industry: From TFT-LCD to a Micro LED Pivot

30-Second Overview: Taiwan's optoelectronics industry took shape in the 1970s. The Industrial Technology Research Institute (ITRI) began investing heavily in display technology in 1987, completing Taiwan's first 10.4-inch TFT-LCD panel in 1996. By 2002, Taiwan had become the world's second-largest panel production and supply hub, with a market share exceeding 30%. Today, this industry—which once pursued scale through large-sized LCDs—is shifting its competitive arena toward Micro LED, smart automotive displays, transparent displays, panel-level packaging, and system integration. ¹

How a Single Glass Substrate Became an Entire Industry Chain

The Taiwan display industry did not emerge suddenly from a single panel factory. ITRI recalls that the optoelectronics industry began developing in the 1970s, subsequently building a complete industrial chain. Since investing in display technology in 1987, ITRI established a display supply chain within seven years that could rival the semiconductor industry. The key to this history was not just manufacturing a single panel, but gradually connecting components, materials, processes, equipment, and downstream products. ¹

Image: First MicroLED.jpg; Author: Santasgift; License: CC BY-SA 4.0; Image page. The image is a schematic of MicroLED technology, not a product from a Taiwanese company or historical evidence for this article's industry history.

The milestones listed by ITRI give concrete shape to this "connection" process. In 1996, ITRI completed Taiwan's first 10.4-inch TFT-LCD panel and transferred the technology to companies such as Chung Hwa Yingsuan, Nan Ya Plastics, China Steel, and Innolux; in 2000, ITRI joined forces with Acer Display Technology, Chung Hwa Yingsuan, HannStar, E Ink, Lienyou Optoelectronics, Chimei Electronics, and Quanta to form the Taiwan TFT LCD Association, providing a collaborative platform for upstream and downstream industries. ¹

The Taiwan Institute of Economic Research (TIER) identifies another industrialization node in 2000: CEC (the predecessor to AUO) produced Taiwan's first 17-inch TFT-LCD panel module; in February 2001, this production line began mass production, which the institute termed Taiwan's first "Generation 4" factory. These two points are not contradictory: the former is a milestone for R&D and technology transfer, while the latter is an industrialization node where panel modules entered mass production lines. ²

Source: Industrial Technology Research Institute, Taiwan Institute of Economic Research

Scale Was Once the Answer

2002 was the moment when Taiwan's panel industry was most easily understood at a glance. ITRI's industrial history data indicates that Taiwan became the world's second-largest panel production and supply hub that year, with a market share exceeding 30%, and the display industry output value reached the trillion-dollar scale. ¹ When the Presidential Office reviewed the industry in 2018, it noted—using government figures at the time—that Taiwan's panel output value still ranked second in the world, reaching NT$1.35 trillion over the previous year and driving employment for over 100,000 people. This is historical data from 2018, not current statistics, but it illustrates how panels once served as a main pillar of Taiwan's industrial policy and employment structure. ³

In 2017, the Technology Policy Research and Information Center of Academia Sinica organized a Micro LED process and equipment symposium involving over 50 manufacturers and nearly 100 experts in panels, LEDs, solutions, equipment, and materials. This scene demonstrated that industrial transformation is not simply about panel makers switching products; rather, panel, LED, equipment, material, and solution companies must all enter the fray together. The report also noted that at the time, Micro LED still faced challenges such as mass transfer, repair, particle contamination, and optoelectronic testing; judgments regarding future commercialization timelines were industry perspectives from 2017 and should not be treated as realized predictions. ⁴

Source: Industrial Technology Research Institute, Academia Sinica Tech Policy Center, Presidential Office, Nanomaterials

📝 Curator's Note: Panels are not merely a sub-story of semiconductors. They also rely on cleanrooms, materials, process integration, precision equipment, and long-term capital investment, yet they place technical achievements directly into objects people see every day: TVs, mobile phones, car windows, and electronic paper signage. What is most worth remembering about Taiwan's display industry is not just that it once ranked second in the world, but that it demonstrated how Taiwan can transform technology from research institutions into manufacturing capabilities shared by many companies. This is also why the next transformation will not be completed by a single panel maker alone.

The Success of LCD Also Brought the Cost of Scale Competition

The difficulty of the panel industry is the flip side of its former success. A 2021 industrial analysis by TIER pointed out that after 2018, technical improvements and capacity expansions by Chinese panel makers caused global market oversupply; the data compiled in the article shows that China's share of liquid crystal panel capacity reached 33.7% in 2018 and exceeded 50% in 2020, creating competitive pressure for Taiwan. These figures are part of a historical analysis compiled in TIER's 2021 article and should not be used as 2026 market share data. ²

The same analysis also noted that in 2021, Micro LED was still in the early stages of commercialization, with costs, mass transfer, and testing technologies remaining significant challenges. In other words, the industry's shift to Micro LED is not finished simply by finding a "prettier" screen material; it must address how millions of tiny light-emitting elements are precisely placed, tested, and repaired, as well as how to maintain yields across different sizes and applications. ²

This turning point changed the nature of the question. In the LCD era, the question was closer to "Can we build larger factories and make more panels?"; in the Micro LED era, the question is "Can we integrate chips, backplanes, transfer, testing, driving, materials, and applications into a deliverable system?" Taiwan's accumulated process and supply chain capabilities are therefore not just historical assets, but necessary conditions for entering the next stage; however, they do not guarantee commercial success.

Micro LED: Not Just a Different Backlight, But a Rewrite of Panel Composition

ITRI's technical description of Micro LED includes characteristics such as high brightness, high efficiency, fast response, no need for a backlight, and self-emissivity. ITRI also stated that this technology can be used for small-pitch displays, transparent displays, AR/MR, wearable devices, and automotive displays, and has integrated Micro LED into various carriers including glass, flexible substrates, silicon, and PCBs. ⁵

These applications are important because they no longer treat the panel as just a flat surface. Curved surfaces in cars, shop windows, museum display cases, and non-rectangular surfaces of wearable devices all require displays to simultaneously handle brightness, transparency, shape, durability, and interactivity. As displays evolve from "components that broadcast images" into "part of the environment," industrial value extends from single panel prices to the integration of design, control, sensing, content, and services.

ITRI's technical history shows that the Micro LED Alliance was established in 2016; a technical breakthrough in Micro LED mass transfer to PCB was achieved in 2020; and in 2022, they collaborated with 50 supply chain companies—including Himelight (錼創) and Jorjin—to develop high-precision full-color Micro LED display modules for applications including TVs, indoor displays, flexible automotive panels, flexible wearables, and smart glasses. This path shows that the development of Micro LED is not a single research result, but a collective push from alliances to processes and applications. ¹

Panel Makers Start Selling "Scenarios"

AUO states on its own Micro LED technology page that Micro LED can mass-transfer millions of micro-LEDs onto LTPS backplanes for use in automotive, wearables, transparent windows, and foldable displays. The 14.6-inch foldable Micro LED display listed on AUO's page features a folding hinge radius of 4 mm and a pixel density of 202 ppi. These are AUO's technical and product descriptions; this article treats them as corporate claims of capability rather than independent test conclusions. ⁶

Image: The Wall (Samsung MicroLED display).jpg; Author: Santasgift; License: CC BY-SA 4.0; Image page. This is an illustration of a trade show setting and does not represent products made by Taiwan or Taiwanese companies; brands and trademarks remain protected by third-party rights.

Innolux states on its official technology page that its Micro LED centers on LTPS backplane driving technology, positioning itself in color conversion, selective mass transfer, mass repair, seamless splicing, and direct fine patterning; the company divides its application directions into smart entertainment, smart mobility, smart healthcare, and smart retail. These technical terms illustrate that competition in the panel industry has extended from "can the screen light up" to whether processes can be stably replicated, whether modules can be spliced, and whether products can enter different environments. ⁷

In September 2025, the Taiwan Display Industry Association (TDUA) reported on a Micro LED application event co-hosted by the Institute for Information Industry (III) and TDUA: five domestic companies shared insights, and 22 potential demand-side companies participated in matchmaking, covering fields such as displays, retail, entertainment, healthcare, mobility, and system integration. The demonstrations reported were no longer just single screens, but combinations of applications including transparent displays, naked-eye 3D, mirror displays, adjustable transparency, and AI mass transfer. ⁸

A subtle but important shift is visible here: panel makers are attempting to sell "scenarios," not just "panels." A transparent storefront requires the display, optical structure, and retail context to exist together; smart automotive needs displays that coordinate with vehicle curves, sunlight, and information interfaces; medical displays require reliability and workflow to be part of the same product definition. Only when technology enters a specific environment does it transform from an exhibit into an industry.

The Direction for 2026: Stepping Outside the Panel Factory

A Micro-LED industrialization review published in Nanomaterials in 2025 pointed out that the industry currently lacks standardized Micro LED production processes, with major manufacturers adjusting equipment and materials based on product applications. The study also recorded that before 2021, most exhibits were smaller than 10 inches; although there were spliced displays exceeding 100 inches between 2022 and 2024, individual panels were mostly around 12 inches; in 2025, AUO demonstrated a 42-inch panel manufactured on a Gen 4.5 substrate. This study clarifies the difficulty of "environment integration": the next stage for displays lies not just in screen size, but in whether processes, materials, and costs can form a repeatable industrial workflow. ⁹

Consequently, panel-level technologies are being re-evaluated: large-area, precision coating, thin-film, material, and packaging capabilities may find markets outside of traditional displays. This does not mean Taiwan has successfully entered all new fields, but rather that the next question for the display industry has expanded from a specification race for single products to whether equipment, processes, and system solutions can be delivered together. ⁹

Source: Nanomaterials (2025) Micro-LED industrialization review, and the application/process descriptions for AUO and Innolux mentioned above ⁹

Can This Pivot Hold Steady?

Taiwan's display industry has proven itself once before: government research institutions can create display technology, companies can turn it into production lines, and supply chains can turn a single panel into an entire industry. The global second-place ranking in 2002 was the first time this path was seen by the world. ¹

But the next competition will not simply repeat that history. The scale war of LCDs allowed China to achieve greater capacity, and Taiwan cannot rely solely on increasing glass substrate area to respond; Micro LED also faces hurdles in mass transfer, testing, cost, and yield, as clearly outlined in TIER's 2021 analysis. ² Therefore, the real question is not whether Taiwan can one day announce it has "reclaimed leadership," but whether it can combine its existing capabilities in panels, LEDs, semiconductors, equipment, and system integration into products that customers are willing to adopt long-term.

The five sharing companies and 22 demand-side companies from the 2025 event, combined with the 42-inch demonstration and non-standardized production processes recorded in academic reviews, reveal an industry landscape still being assembled, rather than a completed declaration of victory. ^{8 9} The next chapter of Taiwan's displays may not be written by the single largest panel, but collectively by a group of companies that can make transparent windows, curved automotive surfaces, electronic paper signage, medical interfaces, and new types of packaging truly work.

References

Further Reading:

• Semiconductor Industry — Shared processes, materials, and precision manufacturing foundations between displays and semiconductors.
• Science Park Development — The spatial context of how optoelectronics and semiconductor industries formed industrial clusters in Taiwan.
• justfont and the development of Taiwanese fonts — Another path of Taiwan's display culture, from hardware displays to glyphs and reading interfaces.

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