Company patents
Japan Display Inc.
Japan Display Inc. is surprisingly shifting its focus away from its core Liquid Crystal & Optical Modulators, which represent 47.5% of its portfolio but saw a significant 43.2% decline in 2025 and a 71.9% decline so far in 2026. Concurrently, the company showed an emerging focus in Multi-Chip & 3D Assemblies with a 66.7% growth in 2024, and a notable, albeit partial, entry into Semiconductor Diodes & Transistors with 78 patents in 2025, indicating a strategic pivot towards advanced semiconductor integration despite an overall patenting slowdown across most categories in 2025 and 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.
3,472 US filings (since 2023) · 12 categories · 44 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.
Methods and components used to control the direction, spread, and intensity of light emitted from a source, including waveguides, lenses, diffusers, and louvers.
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.
Optical structures and lens designs that improve light extraction efficiency from LED dies and modules, including diffractive films, micro-lens arrays, reflectors, and color-conversion layers.
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.
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.
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.
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.
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.
Systems and methods for dynamically adjusting light output, distribution, color, or intensity based on environmental conditions, user presence, content, or specific application needs.
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.
Compact and lightweight lighting devices designed to be worn on the body or easily carried, often featuring ergonomic designs, integrated power sources, and adjustable illumination.
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.
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.
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.
Lighting systems designed to be integrated directly into handheld tools or portable work equipment, often featuring compact designs, robust housings, and specific light direction for work areas.
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 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.
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
Showing 1251-1260 of 1407
Display Pixel Array Structures