Reflective Display Scan-Line Jumping Refresh to Eliminate Flashing
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Solution Overview
Problem
Conventional image refreshing methods in electronic devices with reflective displays cause visible lines to flash on the screen, negatively affecting the user's visual experience.
Innovation Solution
Implementing a jumping mode scanning procedure for scan lines in electronic devices, where non-adjacent scan lines are sequentially scanned on each panel to optimize the image refreshing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional scanning is used for image refreshing, then the scanning process is simple and energy consumption is reduced, but visible lines flash on the display affecting visual experience
Solution Approach 1:
The display screen is divided into multiple non-adjacent scanning regions or zones. Instead of scanning the entire screen sequentially from top to bottom, the scanning process is segmented into multiple independent regions that can be scanned in an interleaved manner, preventing visible scanning lines by distributing the scanning activity across different spatial locations.
Solution Approach 2:
The scanning process uses periodic action by implementing alternating scanning patterns between different regions. Odd scan lines are scanned in one direction while even scan lines are scanned in the opposite direction, or by periodically switching between different scanning zones, creating a refresh pattern that eliminates visible lines through temporal and spatial distribution.
2Ease of operation
If conventional sequential scanning is used, then the scanning procedure is simple, but visible lines flash on the display
Solution Approach 1:
Instead of scanning adjacent lines sequentially from top to bottom, the patent inverts the conventional approach by scanning non-adjacent lines in an alternating pattern. For example, odd-numbered scan lines are scanned first, followed by even-numbered scan lines, or by scanning from bottom to top in certain regions, thereby distributing the visual impact and eliminating visible scanning lines.
3Object-affected harmful factors
If jumping mode scanning is implemented, then visible lines are eliminated, but scanning control becomes more complex
Solution Approach 1:
The patent implements partial action by selectively scanning only certain regions or lines at each refresh cycle rather than scanning the entire display uniformly. By focusing scanning activity on specific non-adjacent regions and leaving other regions to retain their previous frame data, the system eliminates visible scanning lines while reducing the total scanning workload and associated power consumption.
Data Source
AI summary
An electronic device with a plurality of panels is provided. The electronic device also has a plurality of scan line driving circuits that correspond to the panels in order to drive the panels. The electronic device also has a controller that is configured to control the scan line driving circuits. Each panel includes a plurality of scan lines. Prior to image refreshing, the controller controls the scan line driving circuits to reset the panels. The controller performs image refreshing by controlling each scan line driving circuit to scan the scan lines of its corresponding panel in a jumping mode scanning procedure.