UnfoldIPThemes

Company patents

LARGAN DIGITAL CO., LTD.

LARGAN DIGITAL CO., LTD. maintains a strong focus on "Optical Elements & Systems," representing 93.9% of its portfolio, despite a consistent decline in patenting activity in this core area, with a -24.0% YoY drop in 2025. Surprisingly, while most categories show significant declines so far in 2026, the company saw a notable increase in "Photographic Apparatus" patents in 2025 (YoY +27.3%) and a rapid emergence in "Pictorial / Video Communications" with a +42.9% YoY growth in 2025, suggesting a shifting priority towards integrated imaging and communication solutions, though 2026 data is partial and shows a sharp decrease across the board.

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.

82 US filings (since 2023) · 8 categories · 5 themes

Precision Lens Actuation

Mechanisms and control systems for precise movement of optical lens elements, often for autofocus, zoom, or image stabilization, utilizing various driving principles (e.g., piezoelectric) and low-friction components.

Photographic Apparatus
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60since 2023
+18.8%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
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44since 2023
-31.2%YoY
Vehicle-Integrated Camera Systems

Camera assemblies specifically designed for integration into vehicles, addressing challenges like mounting, field of view coverage, environmental robustness, and specialized imaging (e.g., near-infrared) for autonomous driving or safety.

Photographic Apparatus
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29since 2023
-20.0%YoY
Camera Support & Stabilization Accessories

Mechanical structures and devices designed to support, stabilize, or mount cameras and related photographic equipment, often featuring quick-release mechanisms, damping, or adjustable components.

Photographic Apparatus
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8since 2023
new
Video Quality & Encoding Optimizationfiltered

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
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1since 2023
n/a

Patents

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Video Quality & Encoding Optimization
Page 1 of 1
US 11601596 B2GRANTED
H04N5/232

Optical image stabilizer, camera module and electronic device for improved signal transmission and image quality

Filed:2021-06-29Pub:2023-03-07
Applicant:LARGAN DIGITAL CO., LTD.

An optical image stabilizer includes an electric circuit member, an image sensor, a driving member and a pressing member. The electric circuit member includes a fixed part, a movable part and a connection part. The fixed part surrounds the movable part. The connection part is connected to the fixed part and the movable part, and the movable part is movable through the connection part. The image sensor is electrically connected to the electric circuit member and disposed on the movable part. The driving member and the pressing member are coupled to the movable part to respectively move and keep the movable part. The connection part includes wire structures connected to and located between the fixed part and the movable part. The wire structures with pliability are connected to the movable part with no physical support. The wire structures each includes a circuit layer and an insulation layer stacked together.

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