Dual Timing Controller Coordination for Large Display Panels
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Solution Overview
Problem
As the size of display panels increase, the computational demands for controlling their operation also increase, leading to potential errors and inconsistencies in image display quality.
Innovation Solution
The implementation of dual timing controllers for separate display regions, which exchange error flag signals to ensure that compensating operations are performed only when both controllers are error-free, thereby maintaining consistent display quality across the entire panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single timing controller is used to control the entire display panel, then the device complexity is low, but the reliability decreases due to increased computational demands and potential errors in large panels
Solution Approach 1:
The display panel is divided into multiple display regions (first display region and second display region), each controlled by a separate timing controller. This segmentation distributes the computational load, reducing errors in each controller while maintaining overall system reliability for large display panels.
2Manufacturing precision
If compensating operations are performed in one display region independently, then the productivity is high, but the homogeneity of display quality deteriorates due to potential errors in other regions
Solution Approach 1:
Timing controllers exchange error flag signals with each other to provide feedback about their operational status. This feedback mechanism ensures that compensating operations are coordinated across display regions, maintaining uniform display quality while preserving operational efficiency through selective execution.
Solution Approach 2:
The patent combines the error status information from multiple timing controllers by exchanging error flag signals. This merging of information allows coordinated decision-making for compensating operations across display regions, ensuring uniform quality without sacrificing the efficiency benefits of distributed control.
Data Source
AI summary
An electronic device includes a display panel, a first timing controller, and a second timing controller. The first timing controller generates a first error flag signal, the second timing controller generates a second error flag signal, and the first timing controller and the second timing controller exchange the first error flag signal and the second error flag signal with each other. The first timing controller controls a first completion signal, and the second timing controller controls a second completion signal. When the first completion signal is activated and the second completion signal is activated, the first timing controller and the second timing controller drive the first display region and the second display region of the display panel.