Tianma showed a vast array of display technologies at Display Week 2026 with a big focus on automotive applications. They are already a dominant global supplier with an overall 20% market share and 38% share in Head-up Displays (HUDs). In a presentation at the business conference, Jun Chen, Senior Manager, Automotive Market Development at Tianma noted that they are focused on OLED and microLED solutions as the smart cockpit evolves into living space for gaming and entertainment. Here, we look at their microLED efforts.

Insight Media caught up with Dale Maunu of Tianma at the company’s Display Week 2026 booth for a walk-through of their microLED demonstrations. The conversation ranged from a 120,000-nit automotive HUD imager to dual-sided panels, near-seamless tiling, arbitrary-shape capability, and the fabrication realities underlying all of it. The consistent thread was that Tianma is treating our microLED offerings as a process capability showcase rather than a product launch — a distinction Maunu was careful to draw at each stop.

Automotive HUD: 120,000 Nits on a Standard Windshield

The most immediately striking demonstration was a microLED head-up display imager running at a measured 120,000 nits. The significance of that figure is architectural as much as photometric: at that luminance level, the system can project onto a standard, highly transparent windshield without requiring a darkened zone at the base of the glass — the approach that has historically been required for LCD-based and even some microLED-based panoramic HUD (pHUD) systems to maintain acceptable contrast in daylight conditions.

The demo is explicitly a process capability proof point, not a production-ready device. Specifically, the panel does not yet have the full dimming range required for an automotive product — the ability to dim from peak output down to approximately 1 nit for nighttime driving is a regulatory and usability requirement that this prototype does not yet meet. Thermal management is the other open engineering challenge: driving a microLED imager at 120,000 nits generates significant heat that must be dissipated within the substrate, and that becomes an engineering constraint once the optical and process work is resolved.

The HUD demo is a direct output of Tianma’s investment in all-laser mass transfer — a process Maunu noted was discussed in detail at CES 2026 — covering all steps from wafer to backplane, including repair. The 120,000-nit result is intended to demonstrate that the same laser mass transfer process chain that Tianma is developing for general microLED production can also drive a device hard enough for high-luminance imager applications.

For comparison, Tianma also showed an LTPS LCD-based pHUD using a dual-cell architecture — a monochrome LC cell behind the color LC cell for local dimming — which Maunu described as current production-ready technology. An additional LTPS LCD IRIS-HUD configuration requiring a darkened windshield zone was also on display, illustrating the contrast between where the technology is today and where the microLED prototype is pointing. IRIS stands for Integrated Reflective Imaging System and refers to PHUDs as well as AR-HUDs.

Dual-Sided Panels: A Solution in Search of an Application

The next demonstration was a pair of seven-inch microLED panels laminated back-to-back to create a dual-sided display. The technical achievement being highlighted here is alignment accuracy: the two panels are registered to within 10 microns of each other, tight enough that when viewed from one side, the backside panel and its pixel structure are invisible through the front panel. There is no optical bleed-through between the two display surfaces.

The panel’s transparency is an inherent property of the microLED architecture when the pixels are off, which is what makes the dual-sided format viable. Whether that combination of transparency, dual-sided addressability, and 10-micron alignment accuracy will find a commercial application at scale remains an open question.

Near-Seamless Tiling: 20-Micron Borders via Edge Via Routing

Three of the same seven-inch panels as used in the back-to-back demo were also shown tiled side by side to form a single 19-inch composite display. The key process capability being demonstrated here is border width: Tianma has achieved an approximately 20-micron tile border by routing the electrical conductors — edge vias — around the panel perimeter within that space. The result, when viewed in person, is a join line that Maunu noted is actually being emphasized by the demo setup rather than hidden and is still close to imperceptible.

This tiling approach is the same process used in Tianma’s 108-inch microLED TV demonstration at CES 2026, which was built as a hierarchical tiled structure: three 8.9-inch microLED panels assembled into a 27-inch tile, and then multiple 27-inch tiles assembled into the 108-inch display. The 27-inch tile itself was on display at the booth, making the construction methodology visible. Maunu noted that the 8.9-inch panels within each 27-inch tile are relatively low resolution individually — appropriate for a 4K × 2K final display at 108 inches — whereas the seven-inch panels used in the automotive and other fine-pitch demos carry higher per-panel resolution suited to closer viewing distances and smaller form factors.

Arbitrary Form Factors: Round Displays for Automotive

A round microLED panel demonstrated Tianma’s ability to produce arbitrary-shape displays — a capability that other display technologies, notably OLED and LCD, have supported for some time but that has not previously been well established for microLED. The primary application context cited was automotive: a circular display in the center of a steering wheel hub, or discrete round gauge-style instruments replicating the visual language of analog instrument clusters without requiring a rectangular panel to mask out the non-gauge areas.

Maunu acknowledged that the round form factor is directionally consistent with broader automotive interior design trends toward differentiated, non-rectangular display arrangements, and that microLED’s self-emissive characteristics make shaped panels more straightforward to implement than with LCD, where the backlight geometry constrains the panel outline.

Fabrication: The TM18 Gen 6 Development Line

On the Maunufacturing side, Tianma’s microLED R&D and development line is co-located within the complex of their TM18 Gen 6 OLED fab in Xiamen, though it is physically separate from the OLED production line itself. The Gen 6 substrate size provides an established, high-yield backplane process that Tianma is leveraging — cutting down from Gen 6 sheet size to the microLED panel dimensions needed, analogous to the way OLED production runs the array at full Gen 6 and then cuts for the OLED process.

Maunu confirmed that Tianma continues to work with gallium nitride (GaN) epitaxial material for the LED component, noting that most processes outside the LTPS backplane remain in prototype rather than production status. Bringing as many process steps in-house as possible is a stated priority. Yields are, as Maunu put it, exactly what one would expect for a prototype line — meaning no volume production today, and no publicly disclosed defect rates or qualification metrics, which he noted is universally true across the industry at this stage.

Commercialization Timeline and Pricing Expectations

The question of when microLED transitions from prototype to commercial product generated the most forward-looking exchange of the conversation. The industry’s conventional “five years away” framing was acknowledged by Maunu with some skepticism — though he suggested that the threshold in question is the appearance of commercially viable products in the tens to hundreds of thousands of units, not replacement of LCD at scale.

Automotive model year 2031–2032 was cited as the planning horizon that most automotive OEM customers are working toward, which Maunu calculated as effectively four and a half to five years out from today — consistent with the “five years” estimate when interpreted as a viable product timeline rather than a mass-market one.

A pricing framework was offered that is useful context for anyone tracking the automotive display supply chain. Taking automotive-grade mini-LED backlit LTPS LCD as the baseline above standard LCD (roughly 1.2× to 1.4×), automotive-grade OLED currently carries a premium of approximately 2× or more over mini-LED LTPS. MicroLED, in five years, is anticipated to carry a premium of 2× to 3× over OLED — meaning a total cost premium of roughly 4× to 6× over the mini-LED LTPS baseline. Maunu’s view was that while clearly premium pricing, this is less severe than many in the industry had feared for a technology offering capabilities as extreme as 120,000-nit peak luminance. The addressable market at launch will be constrained to the highest-tier vehicles across US, European, and Chinese luxury segments.

Maunu noted the market structure dynamic flagged at the DisplayWeek business conference: the average vehicle price in China is approximately $30,000, roughly half the US average, and the average buyer age is around 30, compared to over 50 in the US. The implication is that pricing pressure to attract younger buyers in the US market could work against microLED integration in volume. Maunu’s counter was that for a capacity-constrained, premium-priced technology, the addressable market is by definition limited to the premium vehicle tier regardless of geography — and that Chinese premium vehicles, which can reach $80,000 and above with high-specification interiors, will be a viable market alongside their US and European equivalents.

On Tianma’s overall automotive display position, Maunu described the company as number one in automotive OEM supply for instrument clusters and center stacks, and number one in HUD by OEM revenue or volume. He acknowledged that BOE could make a similar claim depending on whether aftermarket volume is included in the calculation — Tianma’s position is specifically in OEM-direct supply.

Tianma microLED Symposium Papers

While automobiles often require a wide range of sizes and shaped displays, developing tiles that can be assembled to fit various needs is a good strategy to get economies of scale for a few sizes. This is the approach Tianma is using in developing transparent microLED display tiles that can be seamless assembled to create larger display canvases. Tiled solutions at 7.05-inch with a border under 100 microns and a 19-inch tile with a border of less than 30 microns were described in a symposium paper (97-2). 

Key developments include:

• Circular instead of square apertures to reduce diffraction effects
• Vertical shift registers were moved inside the active area to provide a clean border area
• Implementation of a narrow horizontal edge compression zone to maintain green microLED pitch from tile to tile
• Optimization of the encapsulation layer to minimize tile warpage
• Modification on the edge chamfer design to reduce pixel-to-pixel distance without compromising display integrity
• Using a new tile alignment method to aid in applying adhesive to achieve a seam of less than 30 microns

Tianma fabricated a three-tile 19-inch display using the 7.05-inch transparent microLED tiles with the intra-tile border less than 30 microns. This allowed for a nearly invisible seam and a continuous pixel pitch between tiles.

At CES 2026, Tianma showed a 108-inch direct-view microLED video wall solution. They did not bring this display to Display Week, but they did describe some of the technology enhancements they have developed.

For example, in paper 89-1, the authors describe a new planarization technique that improves the uniformity and optical performance of the ink-jet-printed black matrix material. This technique is applied to 8.9-inch microLED tiles, which are then combined to create 27-inch splicing box unit composed of a 2×4 array of 8.9-inch tiles.  The 108-inch public information display (PID) is fabricated with a 4×4 array of the 27-inch splicing boxes.

Tianma fabricates these microLED tiles on glass using LTPS technology for the drive circuits. This enable pixel pitches below 0.7mm, something chip on printed circuit board (COB) technology cannot achieve. Once the microLEDs are attached to the LTPS backplane, they form a very non-planar surface.

Figure 2 from the paper shows the profile of the black matrix before and after planarization while Figure 3 shows the effect of the black level in the seams between tiles in the 27” splicing box.

Tianma also noted that they have developed an edge contact routing approach for signal connection at the back of the tile. The gap is less than 50 microns and the black matrix layer is applied to the 27” splicing box, not the individual tiles.

Assessment

Tianma’s Display Week 2026 booth made a coherent argument: the process building blocks for viable microLED products — laser mass transfer across all steps including repair, 20-micron edge-via tiling, LTPS backplane integration, arbitrary form factor shaping, and defect-free sample production — are now demonstrable across a range of panel sizes and application types. The 120,000-nit HUD imager, in particular, illustrates that the same process chain being developed for consumer and automotive display applications can be pushed to luminance levels that have no precedent in other flat-panel technologies.

What remains is the transition from defect-free samples to volume production yield, the resolution of thermal management at high drive currents, and the closing of the full dimming range required for automotive deployment. None of these are trivial, but all are framed by Tianma as engineering problems with known solution paths rather than fundamental process unknowns. The model year 2031–2032 target that automotive OEMs appear to be planning around provides the timeline against which that remaining engineering work must be completed.