SOP Display Timing Synchronization Unit
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Solution Overview
Problem
In system-on-panel (SOP) display designs, timing delays and signal mismatches occur due to large signal transmission distances between the control circuit and drivers, degrading image quality.
Innovation Solution
The implementation of a synchronization unit connected to the driving unit, which receives timing signals from a timing controller and synchronizes them before application to the source and scan drivers, ensuring precise timing and reducing signal mismatch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of stationary object
If the control circuit is integrated on the display panel to achieve system-on-panel design, then the weight of the LCD is reduced and fabrication is simplified, but timing delay and signal mismatch occur due to large signal transmission distance
Solution Approach 1:
The patent divides the display panel into multiple regions with separate timing control units. Each timing control unit is responsible for generating timing signals for specific driver circuits in its region, thereby reducing the signal transmission distance and preventing timing delay while maintaining the integrated SOP design.
Solution Approach 2:
The patent introduces timing control units as intermediary components between the control circuit and the driver circuits. These timing control units generate and distribute timing signals locally, acting as mediators that synchronize signal timing without requiring long transmission paths from the main control circuit.
2Device complexity
If the control circuit is integrated on the display panel, then the structure is simplified, but the frame region width is limited preventing simultaneous placement of control circuit and drivers
Solution Approach 1:
The patent segments the display panel into multiple regions, with each region containing its own timing control unit and driver circuits. This segmentation allows the control circuit to be distributed across multiple locations rather than concentrated in one large frame region, reducing the width requirement of any single frame region while maintaining overall structural simplicity.
3Extent of automation
If large signal transmission distance is unavoidable in SOP design, then integration is achieved, but timing delay degrades image quality
Solution Approach 1:
The patent segments the timing control function into multiple distributed timing control units, each located close to the driver circuits it controls. This segmentation dramatically reduces the signal transmission distance within each local region, thereby maintaining high timing precision while achieving high-level integration through the distributed architecture.
Data Source
AI summary
A display adopting system-on-panel (SOP) design comprising a pixel array, a driving unit, a timing controller, and a first synchronization unit is provided. The pixel array is electrically connected with the driving unit. The timing controller generates a first set of timing signals to the driving unit. The first synchronization unit is set adjacent to an input of the driving unit for synchronizing the first set of timing signals.