Selective Screen Display Resolution Enhancement
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Solution Overview
Problem
Large-scale displays such as LED walls face limitations in achieving high resolution due to the difficulty in reducing the size of light emitting diodes and bandwidth constraints between the rendering engine and the display.
Innovation Solution
A system and method that utilize a selective screen with multiple light transmitting elements, such as pixel masks, to increase resolution by displaying multiple images at a predetermined frequency, allowing different portions of images to reach a light receiver at specific times, effectively combining them to form a higher resolution image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the size of light emitting diodes is reduced to increase resolution, then resolution is improved, but manufacturing difficulty increases
Solution Approach 1:
The patent divides each physical LED pixel into multiple virtual sub-pixels through software processing. By segmenting the light output of each LED into multiple directional beams using microlenses, the system achieves higher effective resolution without physically subdividing the LED structures, thus avoiding manufacturing complexity while improving resolution.
Solution Approach 2:
The patent transitions from spatial resolution improvement (reducing LED size) to angular/directional resolution improvement. By controlling light emission in multiple directions from each LED through microlens arrays, the system creates additional resolution dimensions without changing the physical footprint or size of the LED elements.
2Manufacturing precision
If bandwidth between rendering engine and display is increased to support higher resolution, then resolution is improved, but system complexity and cost increase
Solution Approach 1:
The patent employs time-sequential activation of different microlens elements within each LED pixel. By periodically switching which microlens sub-element is active and directing light in different directions at different time intervals, the system transmits multiple high-resolution image portions sequentially through the same bandwidth channel, effectively multiplying resolution without increasing bandwidth requirements.
Solution Approach 2:
The system dynamically controls the activation and light direction of microlens sub-elements in real-time. By making the light path dynamic and reconfigurable through software-controlled microlens switching, the same physical bandwidth infrastructure can adaptively carry multiple high-resolution data streams sequentially, avoiding the need for permanently increased bandwidth capacity.
3Manufacturing precision
If multiple images are displayed at high frequency to increase resolution, then resolution is improved, but luminance decreases
Solution Approach 1:
The patent applies different quality levels to different spatial regions of the display. By analyzing the image content and identifying regions where high resolution is critical versus regions where it is less important, the system can selectively activate high-resolution microlens modes only where needed, maintaining overall luminance while providing enhanced resolution in specific local areas that require it most.
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
This approach enables the formation of higher resolution images than the display can natively produce, enhancing image detail while maintaining or adjusting luminance as needed, thereby overcoming the resolution and brightness limitations of traditional large-scale displays.
Implementation Method 1
A light transmitting element A can redirect a first portion of light transmitted by the display. A light transmitting element B can allow a second portion of light transmitted by the display to reach the light receiver.
Data Source
AI summary
The disclosed system modifies luminance of a display associated with a selective screen. The display provides a camera with an image having resolution higher than the resolution of the display by presenting multiple images while the selective screen enables light from different portions of the multiple images to reach the camera. The resulting luminance of the recorded image is lower than a combination of luminance values of the multiple images. The processor obtains a criterion indicating a property of the input image where image detail is unnecessary. The processor detects a region of the input image satisfying the criterion, and determines a region of the selective screen corresponding to the region of the input image. The processor increases the luminance of the display by disabling the region of the selective screen corresponding to the region of the input image.