Integrated Light Source for Display Panel Anti-Piracy Tracking
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Solution Overview
Problem
Current anti-piracy technologies fail to effectively track the source of intellectual property leaks when an image is captured directly from a computer screen, as they do not provide a method to identify the source display panel.
Innovation Solution
A method involving an integrated light emitting source that generates a visible content image and an invisible watermark image, containing a unique identifier for the source display panel, which is invisible to humans but recordable by cameras, allowing for the identification of the panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an integrated light emitting source generates both visible content image and invisible watermark image simultaneously, then the ability to track source display panel is improved, but the device complexity increases
Solution Approach 1:
The patent combines visible light emitting elements and invisible light emitting elements into a single integrated light emitting source structure. This merging allows simultaneous generation of both visible content images and invisible watermark images containing unique identifiers, resolving the contradiction by integrating multiple functions into one unified component rather than using separate systems.
Solution Approach 2:
The integrated light emitting source serves multiple functions: it displays visible content for users while simultaneously embedding invisible watermark information for anti-piracy tracking. This multi-functionality approach allows a single component to fulfill both user interface needs and security tracking needs, improving anti-piracy capability without proportionally increasing overall system complexity.
2Measurement precision
If an invisible watermark image containing unique identifier is generated using invisible light component, then the identification accuracy of source display panel is improved, but the difficulty of detecting and measuring increases
Solution Approach 1:
The patent introduces a camera as an intermediary device that can detect the invisible light wavelengths emitted by the watermark elements. This intermediary tool bridges the gap between the invisible watermark emission and the ability to extract identification information, allowing high precision identification while managing the detection difficulty through specialized equipment rather than requiring complex direct measurement systems.
Solution Approach 2:
The system changes the wavelength parameter of light emission by using invisible light components (different from visible spectrum) for watermark generation. This parameter change enables unique identification capability while the corresponding detection equipment is designed to match this specific wavelength range, thereby achieving high identification accuracy without excessive measurement complexity.
3Loss of information
If multiple invisible light emitting elements are controlled to emit light forming pattern, then the information encoding capability is improved, but the device complexity increases
Solution Approach 1:
The patent divides the watermark information into multiple segments represented by different invisible light emitting elements arranged in specific patterns. Each element or group of elements can represent specific information bits, allowing encoding of unique identifiers, location information, and time information through spatial arrangement and emission control of segmented elements rather than requiring a monolithic complex control system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the tracking of the source display panel by analyzing captured images to extract the unique identifier, determining location, authorized user, and time of image capture, thereby preventing IP theft.
Implementation Method 1
generating a content image visible to human eyes using a visible light component integrated in an integrated light emitting source; generating a watermark image invisible to the human eyes in real time using an invisible light component integrated in the same integrated light emitting source
Data Source
AI summary
A method of tracking a source display panel from which an illegal copy of an image is captured by a camera is provided. The method includes generating a content image visible to human eyes using a visible light component integrated in an integrated light emitting source; generating a watermark image invisible to the human eyes in real time using an invisible light component integrated in the same integrated light emitting source; and simultaneously displaying the content image and the watermark image on the source display panel. Generating the watermark image includes generating an image of an identifier unique to the source display panel. The method further includes analyzing the image captured by the camera to extract the image of an identifier unique to the source display panel; and identifying the source display panel based on the identifier unique to the source display panel.