Chinese OLED Makers Clash Over BT.2020 Color Gamut at ICDT

At the ICDT (International Conference on Display Technology), held in Chongqing, China from March 31 to April 3, BOE, Visionox, and Tianma showcased AMOLED technologies emphasizing BT.2020 color gamut as a key performance metric. This demonstrated that competition among Chinese OLED manufacturers is increasingly centered on ultra-wide color gamut performance. While premium OLED displays were previously benchmarked at 100% DCI-P3 coverage, the industry is now pushing toward mid-90% coverage of the BT.2020 standard.

BOE Achieves 94% BT.2020 with TSF-Based AMOLED

BOE exhibited a smartphone AMOLED panel based on TSF (TADF-sensitized fluorescence) technology, achieving approximately 94% BT.2020 color gamut coverage. The panel features high resolution, HBM brightness of 2,000 nits, and peak brightness of 7,000 nits, maintaining strong color performance even under high-luminance conditions.

From a technical standpoint, the TSF structure improves exciton utilization efficiency, particularly enhancing color purity in the green region. This enables color reproduction that closely approaches the BT.2020 color coordinates.

BOE's TSF-based BT.2020 94% color gamut AMOLED smartphone panel revealed at ICDT

BOE Achieves 94% BT.2020 with TSF-Based AMOLED (Source: UBI Research)

Visionox Presents High-Efficiency, Mass-Production Strategy Based on pTSF

Visionox introduced an AMOLED based on pTSF (Phosphor-assisted TADF Sensitized Fluorescence), highlighting a color gamut strategy focused on high efficiency. pTSF combines a phosphorescent sensitizer with a TADF mechanism to improve exciton utilization, while maintaining the color purity characteristic of fluorescence and compensating for efficiency loss.

Rather than emphasizing color gamut figures alone, Visionox focused on achieving high color gamut while reducing power consumption by more than 6% and improving lifetime by 20% at the same time. Through its symposium presentation, the company also announced plans to mass-produce high-efficiency AMOLED panels with around 94% BT.2020 coverage in 2026, signaling that the competition has moved beyond the development stage and into commercialization.

Visionox's pTSF structure-based BT.2020 94% high-efficiency AMOLED technology revealed at ICDT

Visionox Targets 94% BT.2020 with pTSF-Based AMOLED (Source: UBI Research)

Tianma Leads Color Gamut Competition with Over 96% BT.2020

Tianma unveiled a panel achieving more than 96% BT.2020 color gamut coverage by combining PSF (Phosphor-Sensitized Fluorescence) technology with improved blue emission characteristics. By enhancing color purity in the green region through PSF and optimizing overall RGB color balance, Tianma further expanded the ultra-wide color gamut.

Tianma's PSF-based BT.2020 96%+ ultra-high color gamut OLED technology revealed at ICDT

Tianma Achieves 96% BT.2020 with PSF-Based AMOLED (Source: UBI Research)

BT.2020 Competition Enters the Commercialization Phase

What became clear at this year’s ICDT is that competition among Chinese OLED makers over BT.2020 performance is moving beyond simple technology demonstrations and entering a commercialization phase aimed at mass production.

Changwook Han, Executive Vice President of UBI Research, stated, “The competitive landscape among Chinese OLED manufacturers is rapidly shifting from a focus on resolution and brightness to color gamut performance based on BT.2020. In particular, competition in the 94% to 96% range is no longer just about numerical superiority, but is evolving into a broader performance race encompassing efficiency and lifetime as well.”

He added, “In the premium OLED market going forward, the key competitive advantage will lie in technologies that can simultaneously achieve ultra-wide color gamut, power efficiency, and reliability.”

Changwook Han, Executive Vice President/Analyst at UBI Research (cwhan@ubiresearch.com)

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