Company patents

Japan Display Inc.

Japan Display Inc.'s patent strategy shows a surprising shift away from its core "Liquid Crystal & Optical Modulators" (46.6% of portfolio) with a -43.2% YoY decline in 2025, while "Organic Electronics (OLED)" saw a significant emerging focus with a +119.0% YoY growth in 2024, despite a subsequent -20.9% decline in 2025. The company also appears to be rapidly de-prioritizing semiconductor-related innovations, with "Integrated Circuit Layout & Arrangement" and "Transistor & Device Structure" showing a -100.0% YoY decline so far in 2026.

Patent Trend by Technology Area

Yearly patent publications since 2023

Product themes

Product-level themes inferred from filings since 2023, with category chips showing where each theme appears. Select a theme to filter the patents below.

3,242 US filings (since 2023) · 12 categories · 43 themes

Display Panel Manufacturing & Encapsulation

Techniques and structural designs for fabricating the physical layers of an OLED display, including material deposition, patterning, and methods to protect the active organic layers from environmental degradation like moisture and oxygen.

Organic Electronics (OLED)
Who else files here? →
1,537since 2023
-38.0%YoY
Display Pixel Array Structures

Physical layout and material composition of individual pixels within a display panel, including active layers, electrodes, light-emitting elements (LEDs, OLEDs), and associated thin-film transistors (TFTs).

Liquid Crystal & Optical ModulatorsIntegrated Circuit Layout & Arrangement
Who else files here? →
873since 2023
-35.9%YoY
Advanced Display Backlight & Optics

Innovations in backlight units, optical films, and light management structures to enhance display performance, uniformity, viewing experience, or specific functionalities like touch.

Liquid Crystal & Optical Modulators
Who else files here? →
751since 2023
-41.7%YoY
Integrated Touch Sensors

Methods and structures for incorporating touch sensing capabilities directly into OLED display panels, typically involving conductive layers and insulating layers within or on top of the display stack.

Organic Electronics (OLED)
Who else files here? →
636since 2023
-37.6%YoY
On-Chip Sensing & Display Integration

Integration of various sensor types (e.g., thermal, strain) or display components directly onto semiconductor substrates or within device architectures for compact and high-performance systems.

Semiconductor Diodes & Transistors
Who else files here? →
549since 2023
-44.4%YoY
Electrophoretic Display Control

Techniques for driving electrophoretic displays, including managing remnant voltage, optimizing particle movement, and specific addressing pulse schemes to improve optical quality and update speed.

Liquid Crystal & Optical Modulators
Who else files here? →
460since 2023
-36.3%YoY
Micro-LED Array Fabrication

Methods and structures for mass-producing and assembling arrays of micro-LEDs onto a substrate, including transfer processes, bonding techniques, and defect management.

LED & Optoelectronics (Legacy CPC)
Who else files here? →
320since 2023
-29.5%YoY
Pixel and Gate Driver Architectures

Design and implementation of circuits and layouts for driving individual pixels or rows/columns of pixels, including gate drivers, data drivers, pixel driving circuits, and their integration onto the display substrate, often in non-display regions.

Display DriversOrganic Electronics (OLED)
Who else files here? →
194since 2023
-20.0%YoY
Integrated Display & Illumination

Systems that combine light sources, waveguides, and display elements into unified products for backlighting, automotive applications, general lighting, or color-corrected displays.

Optical Elements & Systems
Who else files here? →
192since 2023
-38.7%YoY
Flexible/Foldable Device Structures

Engineering solutions for creating electronic devices with bendable, foldable, or stretchable form factors, often involving hinges, flexible displays, and sliding mechanisms to enable dynamic physical configurations.

Organic Electronics (OLED)
Who else files here? →
124since 2023
-38.5%YoY
Advanced Image Processing for Displays

Algorithms and hardware implementations within display drivers or associated components to enhance visual quality, resolution, or color reproduction, including upscaling, dithering, and compensation for display artifacts like crosstalk.

Display Drivers
Who else files here? →
112since 2023
-31.7%YoY
Display Pixel & Optical Materials

Optical and pixel-defining materials for display panels, including black matrix compositions, color filter pigments, optical alignment films, and pixel-define layers.

Liquid Crystal & Optical Modulators
Who else files here? →
97since 2023
-31.6%YoY
Semiconductor Device Manufacturing Processes

Techniques and methodologies for fabricating semiconductor devices, including etching, deposition, annealing, isolation, and doping steps, aimed at improving yield, performance, or enabling new structures.

Transistor & Device Structure
Who else files here? →
85since 2023
-41.0%YoY
Gate Stack & Dielectric Engineering

Advanced techniques for forming and optimizing gate dielectrics, work function layers, and other dielectric layers within transistor structures to improve performance, reliability, and scaling.

Semiconductor Diodes & TransistorsTransistor & Device Structure
Who else files here? →
80since 2023
+73.7%YoY
Advanced Metallization & Contacts

Novel materials and processes for forming low-resistance electrical contacts and interconnects within semiconductor devices, including selective deposition, silicidation, and barrier layers for improved performance and scaling.

Semiconductor Diodes & Transistors
Who else files here? →
62since 2023
+266.7%YoY
Advanced Transistor Device Architectures

Structural innovations in individual transistors, such as fin-based field-effect transistors (FinFETs), 3D gate structures, or multi-layer active regions, aimed at improving performance or density.

Integrated Circuit Layout & Arrangement
Who else files here? →
53since 2023
-52.4%YoY
Display Optical Enhancementsfiltered

Components and techniques aimed at improving the visual quality of OLED displays, such as color accuracy, contrast, brightness uniformity, and reducing reflections or glare through optical layers and coatings.

Organic Electronics (OLED)
Who else files here? →
51since 2023
-52.4%YoY
Display Timing and Signal Synchronization

Methods and circuits for coordinating the timing of display signals, data transmission, and control signals across various display components, ensuring proper image rendering and efficient operation.

Display Drivers
Who else files here? →
50since 2023
-22.2%YoY
OLED Emitter Materials

Development and optimization of organic chemical compounds and their structures, including guest-host systems and metal complexes, used within the emission layer to achieve specific light emission characteristics such as color, efficiency, and operational lifetime.

Organic Electronics (OLED)
Who else files here? →
49since 2023
-5.9%YoY
Wearable Display Optics

Optical systems and components specifically designed for head-mounted displays, augmented reality (AR) glasses, and virtual reality (VR) headsets, focusing on image projection, waveguide integration, and display durability.

Optical Elements & Systems
Who else files here? →
48since 2023
-60.9%YoY
Image Sensor Pixel & Array Design

Layout, material composition, and structural arrangement of photoelectric conversion elements and associated circuitry within image sensor arrays, including infrared detectors and back-side illuminated structures.

Integrated Circuit Layout & Arrangement
Who else files here? →
45since 2023
+41.7%YoY
Gate-All-Around Transistors

Focuses on the design and manufacturing of transistors where the gate material fully encircles the channel, often using nanosheets or fins, to improve electrostatic control and reduce short-channel effects.

Semiconductor Diodes & Transistors
Who else files here? →
35since 2023
+400.0%YoY
Display Power Management

Techniques and circuits for optimizing power consumption, voltage stability, and energy efficiency in display panels, often involving dynamic voltage scaling, duty cycle control, or remnant voltage management.

Display Drivers
Who else files here? →
34since 2023
-50.0%YoY
Advanced Material Integration

Incorporation of novel semiconductor, dielectric, or metallic materials into transistor structures to achieve enhanced performance, new functionalities, or specific device characteristics.

Transistor & Device Structure
Who else files here? →
28since 2023
-33.3%YoY
Novel Memory Transistor Architectures

Design and operation of transistors optimized for memory applications, including floating body devices, ferroelectric FETs (FeFETs), vertical TFTs for 3D arrays, and charge-trapping memory cells.

Transistor & Device Structure
Who else files here? →
25since 2023
-37.5%YoY
LED Epitaxial Layer Engineering

Development and optimization of the semiconductor material layers and their interfaces within an LED to control light emission properties, manage internal stress, and improve device efficiency.

LED & Optoelectronics (Legacy CPC)
Who else files here? →
20since 2023
-33.3%YoY
Metasurface & Diffractive Optics

Engineering of artificial subwavelength structures (meta-atoms) to create metasurfaces that manipulate light properties (phase, polarization, wavelength) for multi-functional optical devices.

Liquid Crystal & Optical Modulators
Who else files here? →
18since 2023
-33.3%YoY
FinFET & Multigate Device Fabrication

Manufacturing processes and structural designs for transistors utilizing fin-shaped channels or multiple gates (e.g., FinFETs, Gate-All-Around FETs) to enhance gate control and reduce short-channel effects.

Transistor & Device Structure
Who else files here? →
15since 2023
-37.5%YoY
Multi-Sensor Imaging & Synthesis

Systems that combine data from multiple camera sensors or capture multiple images from different perspectives or qualities, often involving image processing techniques like synthesis to create enhanced or comprehensive views.

Pictorial / Video Communications
Who else files here? →
14since 2023
+100.0%YoY
Wide Bandgap Power Devices

Development and manufacturing of semiconductor devices using wide bandgap materials like Silicon Carbide (SiC) or Gallium Nitride (GaN) for high-power, high-frequency, or high-temperature applications.

Semiconductor Diodes & Transistors
Who else files here? →
11since 2023
+25.0%YoY
Advanced Optical Imaging & Lens Design

Development of sophisticated optical lens assemblies and computational methods to achieve high-resolution, precise, or specialized imaging, often for medical or scientific applications.

Optical Elements & Systems
Who else files here? →
9since 2023
-66.7%YoY
Interactive & Generative Display Systems

Technologies that create dynamic and interactive visual content for displays, including virtual/wearable systems, by generating overlays, replacing input streams, or merging real-time user actions with digital environments.

Pictorial / Video Communications
Who else files here? →
7since 2023
0.0%YoY
Electronics Encapsulation & Sealing

Materials and processes for hermetic encapsulation, conformal coating, optical chip sealing, and stretchable conductors for electronic and optoelectronic devices.

Organic Electronics (OLED)
Who else files here? →
6since 2023
-33.3%YoY
Integrated Circuit Interconnect & Layout Optimization

Techniques for designing and fabricating the conductive pathways (interconnects) and their contacts between different components within an integrated circuit, focusing on density, reliability, and performance.

Integrated Circuit Layout & Arrangement
Who else files here? →
6since 2023
n/a
Vision-Based Object & Pose Estimation

Methods and apparatus for detecting objects and determining their three-dimensional position and orientation (pose) using imagery or point cloud data, often for navigation, surveying, or environmental understanding.

Computer Vision
Who else files here? →
4since 2023
0.0%YoY
3D Die Stacking & Vertical Interconnects

Techniques for stacking multiple semiconductor dies or active layers vertically to achieve higher density and shorter interconnections, often utilizing through-silicon vias (TSVs) or other vertical conductive paths like through-hole electrodes.

Semiconductor Diodes & Transistors
Who else files here? →
3since 2023
+100.0%YoY
AR/VR User Interfaces

Techniques for rendering, interacting with, and managing content within augmented or virtual reality environments, including spatial tracking, gaze interaction, and dynamic multi-application display management.

Input/Output & User Interfaces
Who else files here? →
3since 2023
0.0%YoY
Automated Visual Inspection

Systems that employ imaging and image processing to automatically detect defects, verify states, or ensure quality control in manufactured goods, printed materials, or industrial processes.

Pictorial / Video Communications
Who else files here? →
3since 2023
new
Optical Fiber Sensing Systems

Systems and methods that utilize optical fibers as sensing elements or for transmitting sensing signals, often for distributed monitoring of environmental conditions, phase changes, or integrating sensing with communication.

Optical Elements & Systems
Who else files here? →
2since 2023
new
Video Quality & Encoding Optimization

Methods and apparatus for improving the visual fidelity, resolution, or compression efficiency of video signals, often through advanced processing, up-scaling, or neural network-based filters.

Pictorial / Video Communications
Who else files here? →
2since 2023
0.0%YoY
Sensor-based Environment Perception

Techniques and hardware for autonomous systems to gather and interpret data about their surroundings, including obstacle detection, object recognition, and depth estimation, to inform control decisions.

Computer Vision
Who else files here? →
2since 2023
n/a
Package Thermal Management

Integrated solutions for dissipating heat generated by high-density semiconductor devices within the package, including embedded cooling structures, cold plates, and optimized fluidic channels.

Multi-Chip & 3D Assemblies
Who else files here? →
2since 2023
n/a
Wearable & Mobile Interaction

Designing user interfaces and interaction methods specifically for mobile or wearable devices, enabling control of external systems, monitoring user states, or facilitating real-world transactions.

Input/Output & User Interfaces
Who else files here? →
1since 2023
n/a

Patents

Page 1 of 6