LED Display Image Processing to Eliminate Moire Patterns
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Solution Overview
Problem
LED display screens suffer from poor image quality due to the generation of Moire patterns caused by the matrix distribution of LED lamps and photosensitive pixels, leading to distorted and unclear images.
Innovation Solution
An image processing method and device that receives original image data, acquires information of original pixels, computes target pixel information using a preset algorithm, and controls the LED display screen to display images based on the color and position information of the target pixels, thereby avoiding Moire patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If LED lamps are distributed in a matrix form on the LED display screen panel, then the LED display screen can be manufactured with simple structure and easy production, but Moire patterns are generated causing poor image quality
Solution Approach 1:
The patent applies asymmetry by changing the symmetric matrix distribution of LED lamps to an asymmetric irregular distribution. The LED lamps are arranged according to a preset irregular pattern that does not follow regular horizontal and vertical matrix forms, thereby avoiding the generation of Moire patterns while maintaining manufacturability through algorithmic control of the irregular positions.
Solution Approach 2:
The patent changes the positional parameters of LED lamps from a regular matrix pattern to an irregular pattern defined by preset algorithms. By modifying the coordinate parameters and distribution rules of LED lamp positions, the system eliminates the periodic structure that causes Moire patterns while preserving the ability to control image display quality.
2Manufacturing precision
If a glass and film are added to the front of the LED display screen for compensation, then Moire patterns may be reduced, but heat dissipation becomes unsmooth and maintenance becomes difficult
Solution Approach 1:
The patent extracts and removes the problematic external compensation components (glass and film layers) by addressing the root cause directly through LED lamp position arrangement. Instead of adding compensatory elements in front of the display screen, the solution is embedded in the distribution pattern of the LED lamps themselves, eliminating the need for additional structural layers.
Solution Approach 2:
The patent inverts the conventional approach by not trying to compensate for Moire patterns after they are generated, but rather preventing their generation in the first place through proper LED lamp arrangement. Instead of adding layers to fix the problem, the solution reverses the problem-solving direction by designing the LED distribution to inherently avoid Moire pattern formation.
3Ease of operation
If LED lamps are arranged in a matrix form, then the distribution manner matches the photosensitive pixels particles, but this causes photoelectric diffraction and generates Moire patterns
Solution Approach 1:
The patent breaks the symmetric correspondence between LED lamp positions and photosensitive pixel positions by implementing an asymmetric irregular distribution pattern for the LED lamps. This asymmetry prevents the periodic interference that causes Moire patterns while maintaining operational simplicity through algorithmic position determination.
Solution Approach 2:
The patent converts the potential harm of regular matrix distribution (which causes Moire patterns) into a benefit by deliberately adopting an irregular distribution pattern. The irregular arrangement, which initially seems to complicate the system, actually eliminates the harmful photoelectric diffraction effects and Moire patterns, improving overall image quality.
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
The solution effectively improves the quality of displayed images on LED screens by preventing Moire patterns, resulting in clearer and more accurate visual representations.
Implementation Method 1
the photosensitive device 104' performs photoelectric conversion on the collected light signals via the photosensitive pixels particles 105' to obtain an electric signal
Implementation Method 2
light signals are converged onto the photosensitive device 104' on the modern digital photographic equipment, the photosensitive device 104'
Implementation Method 3
Moire patterns are generated on an image due to a photoelectric diffraction phenomenon
Data Source
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AI summary
Disclosed are an image processing method and device for a Light Emitting Diode, LED, display screen. The image processing method for an LED display screen includes: original image data is received (S501); information of an original pixel is acquired according to the original image data, wherein the original pixel is a pixel point distributed on an LED display screen panel according to a preset rule, and the information of the original pixel includes color information of the original pixel and position information of the original pixel (S502); the information of the original pixel is executed computation according to a preset algorithm to obtain information of target pixels, wherein the target pixel is a pixel that is distributed not conforming to the preset rule, and the information of the target pixel includes color information of the target pixel and position information of the target pixel (S503); and an image corresponding to the original image data is controlled, according to the color information of the target pixel and the position information of the target pixel, to be displayed on the LED display screen panel (S504). The disclosure improves the quality of a displayed image of an LED display screen.