Company patents

Chongqing HKC Optoelectronics Technology Co., Ltd.

Chongqing HKC Optoelectronics Technology Co., Ltd. shows a surprising shift away from its core display technologies, with significant declines in patenting for both "Liquid Crystal & Optical Modulators" (-70.6% YoY in 2024, -60.0% YoY in 2025) and "Display Drivers" (-27.3% YoY in 2024, -62.5% YoY in 2025), which together represent over 74% of its portfolio. While most categories show a decline, the emergence of "Light-Emitting Devices (LEDs)" with 2 patents so far in 2026, after no activity in prior years, suggests a potential new, albeit small, area of focus.

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.

66 US filings (since 2023) · 12 categories · 18 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)
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39since 2023
-50.0%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
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22since 2023
-60.0%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
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20since 2023
-66.7%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
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13since 2023
-50.0%YoY
Display Pixel Array Structuresfiltered

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
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13since 2023
-80.0%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)Light-Emitting Devices (LEDs)
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12since 2023
0.0%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 Drivers
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9since 2023
n/a
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
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6since 2023
+100.0%YoY
Advanced LED Device Structures

Innovations in the internal design of individual light-emitting diode chips or packages, focusing on semiconductor layer arrangements, electrode configurations, reflective elements, and light extraction features.

Light-Emitting Devices (LEDs)
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3since 2023
+300.0%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
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3since 2023
n/a
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)
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2since 2023
new
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
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2since 2023
n/a
Semiconductor Electrical Test

Techniques and apparatus for electrically testing semiconductor devices, integrated circuits, or wafers during manufacturing or post-assembly, including built-in self-test (BIST) and contact reliability assessment.

Electrical Measurement
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2since 2023
n/a
LED Optical Extraction & Light Management

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.

Light-Emitting Devices (LEDs)
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1since 2023
new
Display Optical Enhancements

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)
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1since 2023
new
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)
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1since 2023
n/a
Power Consumption & Current Sensing

Devices and methods for accurately measuring or monitoring electrical current draw and power usage in various systems, often for control, optimization, or safety purposes.

Electrical Measurement
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1since 2023
n/a
Surge & ESD Protection Circuits

Specialized circuits and devices designed to protect electrical and electronic systems from transient overvoltages caused by electrostatic discharge (ESD) or power surges, often involving suppressor diodes, gas discharge tubes (GDTs), or voltage clamping mechanisms.

Emergency Protective Circuits
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1since 2023
n/a

Patents

Showing 11-20 of 120

Display Pixel Array Structures
Page 2 of 12