LED Strobe Controller Decoupling Rate from Video Frame
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Solution Overview
Problem
Existing video display devices have limitations in producing a strobe effect, with strobe rate and pattern restricted by frame rate, and difficulty in synchronizing with other light effects.
Innovation Solution
A video display device with an array of LEDs and a controller that can independently control light sources to perform a strobe effect by periodic switching between maximum and minimum brightness states, allowing for adjustable strobe rates and patterns independent of video frame rate, and synchronization with other light effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the strobe effect is produced using pre-fabricated video content with periodic white and black frames, then the strobe effect can be displayed, but the strobe rate is limited by the video frame rate (24 Hz to 60 Hz)
Solution Approach 1:
The patent segments the video display into two independent control paths: one for normal video content display and another dedicated path for strobe effect control. The strobe controller generates independent control signals that can operate at any frequency regardless of the video frame rate, allowing the LED array to be selectively driven for strobe effects without being constrained by video content refresh rates.
Solution Approach 2:
The patent introduces a dedicated strobe controller as an intermediary device between the video source and the LED display. This intermediary component receives video content for normal display while simultaneously generating independent strobe control signals based on external trigger inputs, enabling strobe rates to be decoupled from video frame rates and synchronized with external lighting equipment.
2Adaptability or versatility
If the strobe effect is produced using pre-fabricated video content, then the strobe pattern can be displayed, but the strobe pattern ratio is limited by the video frame rate
Solution Approach 1:
The patent implements dynamic control of strobe parameters through a dedicated strobe controller that can independently adjust strobe duration, frequency, and pattern ratios in real-time. This dynamic control system responds to external trigger signals and can modify strobe characteristics without being constrained by fixed video frame structures, enabling flexible pattern adjustment while maintaining system manageability through specialized hardware.
3Reliability
If the strobe effect is produced using pre-fabricated video content, then the strobe effect can be displayed, but it is difficult to synchronize with other light effects
Solution Approach 1:
The patent incorporates external trigger input capabilities that allow the strobe controller to receive synchronization signals from external lighting equipment or media servers. This feedback mechanism enables the strobe effect to be precisely timed and synchronized with other light effects by responding to external timing signals, ensuring coordinated operation across multiple lighting systems while maintaining independent control.
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 a more versatile and flexible strobe effect with customizable rates and patterns, improving synchronization with other light effects and enhancing visual displays.
Implementation Method 1
A video display device with an array of LEDs and a controller that can independently control light sources to perform a strobe effect
Data Source
AI summary
A video display device comprises an arrangement of light sources for displaying video content. Further, the video display device comprises a controller that is configured to control the light sources to display the video content. Further, the controller is configured to control the light sources according to strobe control information to perform a strobe effect by periodically switching the light sources between a first state and a second state, e.g., between a state of low brightness and a state of high brightness.