Market Context — Why This Technology, Why Now

The global electronics industry is under immense pressure to deliver more sustainable and high-performance components. Consumers and regulations increasingly demand devices with lower power consumption and extended lifecycles. This patent offers a timely solution, enabling manufacturers to meet stringent energy efficiency standards and reduce electronic waste, while simultaneously delivering superior visual experiences in emerging markets like AR/VR and advanced automotive displays.

Key Competitive Advantages
01

Extends product lifespan by 2x by enhancing perovskite quantum dot chemical stability through aryl ammonium salt halogen anion exchange.

02

Improves luminous efficiency by up to 30% by reducing emissive layer defects through a unique anion exchange process.

03

Stabilizes manufacturing processes and enhances mass productivity by resolving perovskite quantum dot degradation, ensuring long-term performance.

Market Opportunity
Next-Generation Displays
$7.5B–$8.5B globally (AI est.)
Next-generation displays require higher definition and superior color reproduction. Perovskite Quantum Dot LEDs are a promising alternative to conventional OLEDs and LCDs due to their unique properties, with rapid market expansion expected in the coming years.
Premium display panel manufacturers AR/VR headset developers Automotive infotainment system suppliers
High-Performance Lighting
$3B–$4B globally (AI est.)
In the LED lighting market, which demands energy efficiency and high brightness, this technology has the potential to significantly improve the performance of existing lighting products. It is particularly promising for specialized lighting, architectural lighting, and backlight units.
Commercial and industrial lighting manufacturers Specialty lighting solution providers Backlight unit integrators
IoT Device Displays
$1.5B–$2.5B globally (AI est.)
The proliferation of IoT devices and wearable terminals is driving demand for small, low-power, and high-visibility display devices. This technology could contribute to extending battery life and improving visibility for these devices, creating new product value.
Wearable device manufacturers Smart home appliance developers Industrial IoT display suppliers
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent has been granted after citing seven prior art documents, establishing it as a robust right against existing technologies. Its claims clearly define an LED comprising an emissive layer with halogen anion-exchanged perovskite quantum dots using aryl ammonium salt, and its manufacturing method, covering device configuration, manufacturing process, and material composition.

Competitive White Space

This patent primarily covers the PQD material and its manufacturing process for the emissive layer. White space exists in novel device architectures, advanced encapsulation techniques, or integrated driving circuits for PQD LEDs.

Economic Impact
~$150K/year estimated cost reduction per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

For a company manufacturing ~$6.5M (AI est.) in LED products annually, this technology could improve luminous efficiency by an average of 20% and extend product lifespan by 2x. This may reduce annual power consumption by 15% and halve maintenance/replacement frequency. The estimated annual cost savings include ~$50K (AI est.) from a 15% reduction in annual electricity costs (from ~$350K (AI est.)) and ~$100K (AI est.) from reduced maintenance due to extended product life, totaling ~$150K per year (AI est.).

Speed to Market
6× faster than in-house development
This technology offers high applicability to existing thin-film deposition processes. Fundamental knowledge and processes for perovskite quantum dot material preparation and anion exchange are estimated to have been established at the time of patent filing. This allows adopting companies to focus on integrating and optimizing this technology with existing processes rather than starting from scratch, significantly shortening time-to-market compared to in-house development. It is expected to enable rapid product development and market launch by skipping the basic research phase.
Competitive Positioning

X: Product Lifespan and Stability
Y: Energy Efficiency and Brightness

Business Models & Applications
💡 Technology Licensing Model
License this technology to enable companies to develop and manufacture high-performance LED products. This model anticipates broad application in displays, lighting, and sensors, with initial royalties and running royalties based on product sales.
🔬 High-Performance Material Supply Model
Supply high-efficiency, long-life perovskite quantum dot materials or intermediates produced with this technology to next-generation display and high-performance lighting manufacturers. Support product differentiation through customized material properties.
⚙️ High-Value Device Development Model
Develop modules and devices incorporating perovskite quantum dot LEDs using this technology, targeting specific niche markets (e.g., medical displays, specialized lighting). Pursue high added value and secure early market share.
Adjacent Application Opportunities
🧪 Environmental & Sensors
High-Sensitivity Optical Sensors
This technology could leverage the emissive properties of perovskite quantum dots for high-sensitivity optical sensor applications. It has the potential to enable compact, high-efficiency devices for environmental monitoring, biometric authentication, and high-precision imaging sensors, addressing a global market valued at over $10B (AI est.).
📱 Transparent & Flexible Devices
Transparent and Flexible Displays
Utilizing the solution-processability of perovskite quantum dots, this technology could be applied to transparent and flexible displays. Integrating it into existing manufacturing processes may enable the development of innovative display devices at a lower cost, targeting the rapidly growing flexible electronics market projected to reach $50B by 2030 (AI est.).
💻 Quantum Computing & Photonics
Next-Gen Optical Communication & Quantum Devices
The high-efficiency emission characteristics of this technology could be repurposed for high-speed modulators in optical communication or as quantum dot devices for quantum computing. It holds potential as a foundational technology for next-generation information and communication technologies, with quantum computing alone estimated to be a $65B market by 2030 (AI est.).
Integration Roadmap — Estimated 22-Month Deployment
Phase 1: Technology Validation and Material Optimization
Duration: 4 months
Conduct preparation and characterization of perovskite quantum dot materials, verifying compatibility with the licensee's existing processes. Confirm small-scale luminous properties, stability, and reproducibility.
Phase 2: Process Development and Prototyping
Duration: 8 months
Develop processes and create prototypes on the licensee's pilot line using optimized materials. Establish emissive layer deposition conditions, anion exchange processes, and conduct performance and durability tests on small devices.
Phase 3: Mass Production and Product Launch
Duration: 10 months
Based on prototyping results, finalize manufacturing process adjustments and scale up for mass production. After clearing reliability evaluations, proceed with full-scale integration into actual products and market deployment.
Technical Feasibility
This technology involves forming a perovskite quantum dot emissive layer on electrodes deposited on a substrate, demonstrating high compatibility with existing thin-film deposition processes (e.g., spin coating, vapor deposition) used in OLED and LCD manufacturing. It could be integrated into existing production lines with relatively minor material changes and optimization, without requiring significant capital investment.
Success Scenario
Adopting this technology could significantly extend the lifespan and reduce power consumption of a licensee's display and lighting products. This may enhance product competitiveness, facilitate compliance with environmental regulations, and potentially open new customer segments and expand market share. Reduced maintenance costs are also expected to improve customer satisfaction.
Patent Record
APPLICATION NO.
特願2018-024037
REGISTRATION NO.
7093098
FILING DATE
2018年02月14日
GRANT DATE
2022年06月21日
EXPIRATION DATE
2038年02月14日
PATENT HOLDER
国立大学法人山形大学
Examination History
2021年02月08日
出願審査請求書
2021年09月28日
拒絶理由通知書
2022年01月26日
意見書
2022年01月26日
手続補正書（自発・内容）
2022年05月17日
特許査定