Sequential Color Display Time Reallocation for Brightness Optimization
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Solution Overview
Problem
Sequential color display systems often waste display time by providing light intensities beyond what is needed for an image, leading to suboptimal brightness and image quality, as they typically allocate time evenly across colors regardless of their actual intensity requirements.
Innovation Solution
A method and system for dynamically reallocating display time in sequential color display systems based on image data, where unused time from less intense colors is reassigned to colors that require higher intensities, using a controller with a color sequence reallocation unit to adjust the color sequence and generate new light control commands for the light source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If display time is allocated evenly across all colors in a sequential color display system, then the system maintains simple control logic and consistent timing, but image brightness and quality deteriorate due to wasted display time on colors with excessive intensity
Solution Approach 1:
The patent implements dynamic color sequence reallocation by analyzing the maximum light intensity requirements of each color in the input image and adjusting the display time allocation accordingly. The controller dynamically modifies the color sequence to allocate more time to colors that need higher intensities and less time to colors that require lower intensities, transforming the static even-time allocation into an adaptive dynamic system that optimizes brightness based on actual image content
Solution Approach 2:
The system changes the time allocation parameter for each color in the sequential color sequence based on the maximum intensity requirements detected in the image. By varying the display duration of each color according to its intensity needs rather than using fixed equal time slots, the system optimizes overall image brightness while maintaining efficient use of display time
2Illumination intensity
If light intensities beyond image requirements are provided, then the color sequence can cover the full range of displayable intensities, but image quality deteriorates due to suboptimal brightness from wasted display time
Solution Approach 1:
The patent extracts and removes the excessive display time allocated to colors that do not require high intensities. By identifying the maximum intensity needed for each color in the image and subtracting the surplus time, the system reallocates this extracted time to colors that actually need it, thereby improving image quality without sacrificing the ability to display the full intensity range where required
Solution Approach 2:
The system adjusts the light intensity parameter allocation by modifying the display time for each color based on actual image requirements. Rather than providing fixed high intensities for all colors, the system dynamically changes the intensity delivery parameters to match what each color actually needs, eliminating waste while maintaining full displayable range capability
3Productivity
If a fixed color sequence is used regardless of image content, then the system maintains simple hardware control, but productivity decreases due to inability to optimize display time allocation for different images
Solution Approach 1:
The patent implements a feedback mechanism where the controller analyzes the maximum light intensity requirements of each color in the input image and uses this information to dynamically adjust the color sequence display time allocation. This feedback loop enables the system to optimize display time utilization for each specific image while maintaining relatively simple hardware, as the complexity is confined to the control logic that processes image data and generates adjusted timing signals
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 increases image brightness and quality by ensuring that only necessary light intensities are used, optimizing the display time allocation and enhancing the overall brightness of images without requiring significant hardware upgrades, thus improving image quality dynamically and efficiently.
Implementation Method 1
When a micromirror is in a first state (e.g., an ON state), the light being displayed may be reflected onto a display plane and when a micromirror is in a second state (e.g., an OFF state), the light may be reflected away from the display plane
Implementation Method 2
A viewer's visual system generally will integrate the sequentially displayed image data to form images
Data Source
AI summary
System and method for image-based color sequence reallocation in sequential color display systems. A method comprises generating a color signal from an image to be displayed, wherein the color signal contains light intensity information, computing percentages of the color sequence to be allocated to each color in a set of colors in a sequential color display system, wherein the computing is based on the light intensity information, allocating the color sequence based on the computed percentages, and displaying the image using the color sequence. The allocation of the color sequence based on the image allows for the elimination of color intensities that are greater than needed in displaying the image. Portions of the color sequence formerly used to display the eliminated color intensities may be used to display colors with usable intensities, thereby increasing the brightness of images.