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
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.
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).
Innovations in backlight units, optical films, and light management structures to enhance display performance, uniformity, viewing experience, or specific functionalities like touch.
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.
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.
Techniques for driving electrophoretic displays, including managing remnant voltage, optimizing particle movement, and specific addressing pulse schemes to improve optical quality and update speed.
Methods and structures for mass-producing and assembling arrays of micro-LEDs onto a substrate, including transfer processes, bonding techniques, and defect management.
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.
Systems that combine light sources, waveguides, and display elements into unified products for backlighting, automotive applications, general lighting, or color-corrected displays.
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.
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.
Optical and pixel-defining materials for display panels, including black matrix compositions, color filter pigments, optical alignment films, and pixel-define layers.
Techniques and methodologies for fabricating semiconductor devices, including etching, deposition, annealing, isolation, and doping steps, aimed at improving yield, performance, or enabling new structures.
Advanced techniques for forming and optimizing gate dielectrics, work function layers, and other dielectric layers within transistor structures to improve performance, reliability, and scaling.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Incorporation of novel semiconductor, dielectric, or metallic materials into transistor structures to achieve enhanced performance, new functionalities, or specific device characteristics.
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.
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.
Engineering of artificial subwavelength structures (meta-atoms) to create metasurfaces that manipulate light properties (phase, polarization, wavelength) for multi-functional optical devices.
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.
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.
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.
Development of sophisticated optical lens assemblies and computational methods to achieve high-resolution, precise, or specialized imaging, often for medical or scientific applications.
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.
Materials and processes for hermetic encapsulation, conformal coating, optical chip sealing, and stretchable conductors for electronic and optoelectronic devices.
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.
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.
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.
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.
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.
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.
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.
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.
Integrated solutions for dissipating heat generated by high-density semiconductor devices within the package, including embedded cooling structures, cold plates, and optimized fluidic channels.
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.
Patents
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