Programmable Synchronization Link for Dual Embedded Display Panels
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Solution Overview
Problem
Modern mobile devices with dual embedded display panels face synchronization issues, such as lag, due to the local control of panel timings by each display panel, which hampers the concurrent display of data, especially when showing video content.
Innovation Solution
Implementing a programmable synchronization link that allows one display panel to be configured as a master and the other as a slave, enabling bidirectional communication to synchronize data and reduce lag, particularly for MIPI DSI Command Mode and eDP display panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If each display panel controls its timing locally, then each panel can operate independently, but synchronization issues and lag occur when displaying data concurrently on both panels
Solution Approach 1:
The patent introduces a master panel that acts as an intermediary between the data source and the slave panel. The master panel receives timing information and propagates it to the slave panel through a synchronization link, mediating the timing coordination between two independently controlled panels and eliminating synchronization issues while maintaining independent operation capability
Solution Approach 2:
The synchronization mechanism implements feedback by having the master panel continuously transmit timing information to the slave panel. This feedback loop ensures that the slave panel adjusts its timing based on the master panel's signals, maintaining reliable synchronization during concurrent display operations
2Adaptability or versatility
If dual embedded display panels are used to enable various data configurations, then display versatility is improved, but synchronization issues arise when data is intended to be displayed concurrently on both panels
Solution Approach 1:
The master panel serves as an intermediary that coordinates timing between two display panels with different configurations. By propagating timing information from the master to the slave panel, the system maintains synchronization reliability even when panels operate in different modes or display different data configurations
3Ease of operation
If panel timings are controlled locally by each display panel, then panel independence is maintained, but lag occurs especially when showing video content
Solution Approach 1:
The master panel acts as an intermediary that distributes synchronized timing information to the slave panel, eliminating the timing discrepancies that cause lag. This maintains the independence of each panel's local control while ensuring they operate in unison, particularly improving video content display timing
Solution Approach 2:
The system performs preliminary timing coordination by having the master panel establish and propagate timing signals before concurrent display operations begin. This preliminary synchronization action prevents timing drift and lag from occurring during video playback and other time-sensitive operations
Data Source
AI summary
Methods and apparatus for synchronizing embedded display panels of mobile devices via programmable synchronization links are disclosed. An example mobile device includes a first embedded display panel, a second embedded display panel, a programmable synchronization link, a configuration manager, and a synchronization manager. The programmable synchronization link is operatively coupled to the first and second embedded display panels. The configuration manager is to configure the first embedded display panel as a slave panel, and to configure the second embedded display panel as a master panel. The synchronization manager is to synchronize the slave panel to the master panel via the programmable synchronization link.