Adaptive Frame Rate Control for Seamless Image Display
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Solution Overview
Problem
Image display devices struggle to reproduce and display images without damage when the frame rate of the input video signal changes, particularly when transitioning between different frame rates.
Innovation Solution
The image display device includes a controller that adjusts the frame rate based on auxiliary video information (AVI) frequency information, vendor-specific infoframe (VSIF) frequency information, or calculates the frame rate from the video signal, ensuring consistent display regardless of frame rate changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the image display device displays video signals with varying frame rates, then the device can support diverse video sources and formats, but image damage and distortion occur during frame rate transitions
Solution Approach 1:
The patent implements dynamic frame rate adjustment by detecting the frame rate of incoming video signals and automatically adapting the display timing parameters. The controller modifies the display refresh rate and scanning parameters in real-time based on the detected video signal characteristics, enabling seamless transition between different frame rates (e.g., 30Hz, 60Hz, 120Hz) without causing image distortion or damage.
Solution Approach 2:
The patent changes display parameters including frame rate, horizontal scanning frequency, and vertical scanning frequency according to the detected video signal characteristics. By dynamically adjusting these parameters, the display device adapts to different video sources while maintaining image quality, resolving the contradiction between supporting diverse formats and ensuring reliable display.
2Stability of the object's composition
If the device uses a fixed frame rate for display, then image stability is maintained, but the device cannot adapt to video signals with different frame rates
Solution Approach 1:
The display system transitions from a fixed frame rate to a dynamic frame rate system that automatically detects and adapts to the incoming video signal's frame rate. The controller continuously monitors video signal characteristics and adjusts display parameters accordingly, maintaining image stability within each frame rate while enabling compatibility across multiple frame rates.
Solution Approach 2:
The patent implements a universal display mechanism that can handle multiple video formats and frame rates through a single adaptive system. The display device functions as a multi-functional platform that automatically configures itself based on the connected video source, eliminating the need for manual configuration and ensuring both stability and compatibility.
3Reliability
If the device automatically detects and adjusts frame rate, then image damage is prevented during frame rate changes, but the control system becomes more complex
Solution Approach 1:
The patent implements a self-service control mechanism where the display device automatically detects video signal characteristics and adjusts its own display parameters without external intervention. The system autonomously identifies frame rate changes and modifies timing parameters to prevent image distortion, reducing the need for complex manual control interfaces while maintaining high reliability.
Solution Approach 2:
The patent incorporates feedback mechanisms that continuously monitor the incoming video signal's frame rate and use this information to adjust display parameters in real-time. The controller receives feedback about video signal characteristics and automatically modifies display timing to prevent image damage, creating a closed-loop control system that balances reliability with manageable complexity.
Data Source
AI summary
An image display device and a method for controlling the same are disclosed. The image display device is configured so that images are reproduced and displayed without being broken even if a frame rate of an input video signal changes. The image display device includes a display; a communication unit configured to communicate with a video player; and a controller. The controller receives auxiliary video information (AVI) frequency information of a video signal received from the video player, presets a frame rate of the video signal based on the received AVI frequency information when the AVI frequency information is not a preset default value, and controls the video signal to be displayed on the display according to the preset frame rate.