Display Interface Signal Quality Inspection and Dynamic Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices face challenges in maintaining signal transmission quality across interfaces, leading to errors that can result in miscorrection of image data and degradation of displayed images due to issues like damage in transmitters or receivers, or short circuits in signal transmission lines.
Innovation Solution
A display device system that includes a timing controller and data driver capable of inspecting signal transmission quality by comparing reference data with received data, and adjusting transmission states such as frequency, driving current, or termination resistance to correct errors, and blocking power supply if errors persist.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transmission frequency, driving current, or termination resistance of the first interface is changed to correct signal transmission errors, then the signal transmission quality is improved, but the device complexity increases due to the need for dynamic adjustment mechanisms
Solution Approach 1:
The patent applies dynamics by making the transmission state of the first interface adjustable rather than fixed. The timing controller dynamically changes transmission parameters (frequency, driving current, termination resistance) based on detected signal quality, allowing the system to adapt to varying transmission conditions and resolve errors through real-time parameter optimization
Solution Approach 2:
The patent directly applies parameter changes by modifying physical transmission parameters (frequency, current, resistance) to correct signal quality issues. The timing controller detects transmission errors and responds by changing these parameters to optimize signal integrity, thereby improving reliability without requiring complete system redesign
2Reliability
If the timing controller continuously monitors and adjusts transmission parameters to maintain signal quality, then the reliability is improved, but the productivity decreases due to additional inspection and adjustment time
Solution Approach 1:
The patent applies preliminary action by performing transmission state adjustments proactively when errors are detected, rather than waiting for complete data transmission failures. The timing controller monitors reference data transmission and makes corrective parameter changes during the inspection period, preventing further quality degradation while minimizing impact on overall productivity
3Object-affected harmful factors
If the timing controller blocks power supply when errors are detected to prevent miscorrection, then the harmful factors are reduced, but the loss of information increases due to interruption of data transmission
Solution Approach 1:
The patent applies preliminary anti-action by blocking power supply as a preventive measure when transmission errors are detected. This prevents potentially harmful miscorrection of image data that would occur if defective data were processed, while the inspection mechanism ensures power is only blocked when necessary, minimizing information loss
Solution Approach 2:
The patent uses feedback by continuously monitoring the quality of reference data transmission and using this information to control power supply and parameter adjustments. The timing controller receives feedback about transmission quality and responds appropriately by either adjusting parameters or blocking power, creating a closed-loop system that reduces harmful effects while minimizing disruption
Data Source
AI summary
A display device includes: a first interface; a data driver providing first reference data to a first transmitter of the first interface; and a timing controller receiving second reference data through a first receiver of the first interface and comparing the first reference data with the second reference data to inspect signal transmission quality of the first interface for an error, wherein the first reference data is transmitted from the first transmitter to the first receiver via the first interface, wherein the timing controller changes a transmission state of the first interface when an error is detected in the signal transmission quality of the first interface, and wherein the transmission state of the first interface includes at least one of a transmission frequency, a driving current, or a termination resistance of the first interface.