Receiver Initialization for Display Signal Gain Compensation
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Solution Overview
Problem
As display resolution and color depth increase, signal gain degradation occurs in data transmission channels, leading to operational inefficiencies in display devices, necessitating a method to compensate for this degradation without reducing the device's operation speed.
Innovation Solution
A method for a receiver to selectively perform full or partial initialization, adjusting AC and DC characteristics to optimize signal reception, and a source driver that converts data into driving signals for the display panel, ensuring efficient data transmission while maintaining device speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data transmission speed is increased to meet higher resolution and color depth requirements, then display performance is improved, but signal gain degradation occurs in the transmission channel
Solution Approach 1:
The receiver performs initialization (AC training and/or DC training) before normal data reception to pre-adjust its characteristics. This preliminary action compensates for channel degradation effects before high-speed data transmission begins, ensuring the receiver is optimized for the current channel conditions and can maintain reliable signal gain at higher transmission speeds
2Reliability
If full initialization is performed to compensate for signal gain degradation, then signal reception quality is improved, but initialization time increases
Solution Approach 1:
The receiver selectively performs only AC training or only DC training based on the detected initialization requirement, rather than always performing both AC and DC training. This partial action approach reduces initialization time while still providing sufficient compensation for signal gain degradation in many cases, balancing reception quality with time efficiency
Solution Approach 2:
The initialization mode (AC training only, DC training only, or both) is dynamically selected based on the current channel conditions and initialization requirements. The receiver adapts its initialization strategy in real-time, performing comprehensive initialization when needed and reduced initialization when conditions permit, optimizing the balance between reception quality and initialization time
Data Source
AI summary
A method of operating a receiver includes a controller of the receiver determining whether a full initialization or a partial initialization of the receiver is needed; the controller adjusting alternating current (AC) characteristics and direct current (DC) characteristics of the receiver in a full initialization mode, and the controller adjusting the DC characteristics of the receiver in a partial initialization mode when the controller determines the partial initialization is needed.