Adaptive Pixel Shift Frequency for Display Burn-In Protection
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Solution Overview
Problem
Current burn-in protection methods for display panels, such as shifting images, are visually irritating and inefficient as they apply the same pixel shift frequency to both still and moving pictures, regardless of content, leading to suboptimal luminance preservation and user annoyance.
Innovation Solution
Adapting the pixel shift frequency based on the motion degree of the pictures, using motion data from video processing ICs to adjust the shift pattern dynamically, with higher frequencies for less motion and lower frequencies for more static content, thereby reducing visual irritation and enhancing burn-in protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pixel shift frequency is increased to improve burn-in protection, then luminance preservation is improved, but visual irritation increases
Solution Approach 1:
The patent applies dynamics by making the pixel shift frequency variable rather than fixed. The frequency is dynamically adjusted based on motion detection: high frequency during static periods for burn-in protection, low frequency during motion to reduce visual irritation. This resolves the contradiction by adapting the shift intensity to the actual need at each moment.
Solution Approach 2:
The patent changes the parameter of pixel shift frequency based on motion degree. By detecting motion in the displayed image and adjusting the frequency parameter accordingly, the system achieves optimal balance between burn-in protection and visual comfort - high frequency when no motion occurs, low frequency when motion is detected.
2Object-affected harmful factors
If pixel shift frequency is decreased to reduce visual irritation, then user comfort is improved, but burn-in protection effectiveness deteriorates
Solution Approach 1:
The system dynamically adjusts pixel shift frequency based on real-time motion detection. During static image periods, high frequency maintains strong burn-in protection. During motion periods, frequency is reduced to minimize visual irritation. This dynamic adaptation ensures both protection effectiveness and user comfort are optimized at different times.
Solution Approach 2:
The pixel shift frequency parameter is changed according to motion degree. The system detects motion in the image content and adjusts the frequency parameter to match the content characteristics, ensuring adequate protection for static content while reducing irritation for moving content.
3Device complexity
If uniform pixel shift frequency is applied to all picture types, then device complexity is reduced, but protection effectiveness for different content types deteriorates
Solution Approach 1:
Rather than using a fixed uniform frequency, the patent implements dynamic frequency adjustment based on motion detection. The system analyzes motion degree in the picture content and automatically adapts the pixel shift frequency, achieving content-optimized protection without requiring complex manual configuration.
Solution Approach 2:
The system performs self-adjustment by detecting motion in the displayed content and automatically modifying the pixel shift frequency accordingly. This self-service capability eliminates the need for user intervention or complex external control while optimizing protection effectiveness for different content types.
Data Source
AI summary
The invention concerns a device and a method for protecting display time. The image processing method according to the invention comprises a step of shifting pictures by a pattern at a pixel shift frequency characterized in that the frequency is changed for a group of at least one picture depending on a motion degree of the group.