Bit Segment Timing Organization for Spatial Light Modulators
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Solution Overview
Problem
Spatial light modulator (SLM) display systems face challenges in reducing peak data rates while maintaining optical efficiency and minimizing visual artifacts such as temporal contouring, which occur due to the restricted placement of bit segments and the need for complex device configurations.
Innovation Solution
The implementation of adaptable algorithms that allow for flexible placement of reset commands, enabling consecutive short bit segments and adjusting load and reset signal times to optimize bit segment lengths, thereby reducing visual artifacts and enhancing neutral density filtering techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional bit segment timing is used with fixed reset placement, then device complexity is reduced, but peak data rate cannot be optimized and visual artifacts increase
Solution Approach 1:
The patent implements dynamic adjustment of reset command placement within valid regions rather than using fixed timing. The sequence generator adaptively positions reset commands based on bit segment requirements, allowing flexible timing that optimizes data rate while managing device complexity through algorithmic control.
Solution Approach 2:
The system changes timing parameters dynamically by adjusting the placement of reset commands within valid regions. This allows optimization of peak data rate through parameter variation while maintaining manageable complexity through structured adjustment rules.
2Object-affected harmful factors
If flexible reset placement is implemented, then visual artifacts are minimized and peak data rate improves, but sequence generation complexity increases
Solution Approach 1:
The sequence generator uses feedback mechanisms to adjust reset command placement based on the specific bit segment requirements and timing constraints. This feedback-driven approach minimizes visual artifacts by adapting to actual display needs while managing algorithmic complexity through systematic adjustment.
Solution Approach 2:
The system dynamically adapts reset command timing based on real-time requirements of different bit segments, allowing flexible placement that reduces temporal contouring and other visual artifacts while containing complexity through structured adaptability.
3Adaptability or versatility
If consecutive short bit segments are allowed, then neutral density filtering performance improves, but timing coordination complexity increases
Solution Approach 1:
The patent segments the bit sequence into distinct segments with different timing characteristics, allowing consecutive short bit segments for neutral density filtering. The sequence generator manages timing coordination between segments through systematic generation rules that handle complexity.
Solution Approach 2:
The system dynamically adjusts timing between consecutive segments based on specific requirements, enabling flexible implementation of neutral density filtering while managing coordination complexity through adaptive timing control.
4Productivity
If load and reset signal times are adjusted, then bit segment lengths are optimized, but control signal generation complexity increases
Solution Approach 1:
The patent optimizes bit segment lengths by dynamically changing load and reset signal timing parameters. The sequence generator systematically adjusts these parameters to achieve optimal segment lengths while containing control complexity through structured parameter modification.
Solution Approach 2:
The sequence generator performs preliminary calculation and planning of load and reset signal timing before actual signal generation. This preliminary action optimizes bit segment lengths while reducing real-time control complexity by pre-determining timing sequences.
Data Source
AI summary
Disclosed are reset techniques for a spatial light modulator, and related system for displaying an image. The systems and methods have pixels that are loaded with data and reset commands to take on binary states, where the methods employ adaptable algorithms to provide flexibility in placement of the reset commands. Specifically, valid regions for such reset commands are determined, and times for consecutive bit segments are calculated; and DMD load times are adjusted for a proper sequence. An advantage of the disclosed methods is that two consecutive bit segments are no longer restricted to following a pattern of normal/short bit segments. In contrast, with the disclosed technique short segments may be consecutive, allowing the implementation of additional enhancements, including neutral density filtering (NDF) techniques that typically include adjacent short bits in the bit sequence.