Panel Control Device Anti-Burn-In Processing
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Solution Overview
Problem
Display panels, particularly OLEDs, suffer from the irreversible 'burn-in' phenomenon where static images cause rapid aging of organic compound films, leading to image sticking, and existing panel control devices spend considerable time analyzing frames to prevent this, reducing efficiency.
Innovation Solution
A panel control device dynamically adjusts the processing degree of the anti-burn-in process based on self-refresh commands from a former stage device, increasing or reducing the processing degree to prevent burn-in, thereby enhancing efficiency and reducing image aging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the panel control device performs image analysis on multiple frames to judge still images, then the burn-in phenomenon is prevented, but the time consumption increases significantly
Solution Approach 1:
The invention applies preliminary action by using the panel self-refresh entering command from the former stage device to pre-identify still image scenarios before the panel control device performs detailed image analysis. This command serves as an advance indicator that allows the system to prepare anti-burn-in processing in advance, eliminating the need for time-consuming frame-by-frame analysis while ensuring burn-in prevention is activated at the appropriate moment
Solution Approach 2:
The invention implements feedback by utilizing the panel selfrefresh entering command as a feedback signal from the former stage device about the current display state. This feedback mechanism allows the panel control device to adjust its processing degree dynamically based on real-time information about whether the panel is in selfrefresh mode, enabling timely anti-burn-in processing without exhaustive image analysis
2Reliability
If the processing degree of anti-burn-in process is increased, then burn-in prevention effectiveness is improved, but the device efficiency decreases
Solution Approach 1:
The invention applies dynamics by making the processing degree of the anti-burn-in process dynamically adjustable based on the panel selfrefresh entering command. The control circuit increases the processing degree when the command indicates still image display conditions and reduces it when motion content is detected, creating a dynamic adaptation mechanism that optimizes both burn-in prevention effectiveness and device processing efficiency according to real-time display requirements
Solution Approach 2:
The invention implements parameter changes by modifying the processing degree parameter of the anti-burn-in process based on the panel selfrefresh entering command. The control circuit adjusts this parameter upward when the command indicates selfrefresh mode (still images) and downward when motion content is present, thereby changing the operational parameters to achieve optimal balance between burn-in prevention and processing efficiency
Data Source
AI summary
A panel control device and an operation method thereof are provided. The panel control device includes a display port and a control circuit. The display port receives video data from a former stage device. The control circuit performs an anti-burn-in process on the video data according to a processing degree. After the former stage device issues a panel self-refresh entering command to the panel control device, the panel control device enters a panel self-refresh mode, and the control circuit increases the processing degree according to the panel self-refresh entering command, so as to perform the anti-burn-in process on the video data according to the increased processing degree.