Auxiliary Line Clock Training for Display Data Equalizer Optimization
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Solution Overview
Problem
As display panel resolution and frame rates increase, the amount of image data to be transmitted in display devices grows, requiring high-speed data communication that existing technologies struggle to efficiently manage, especially in transmitting and receiving data through main and auxiliary communication lines effectively.
Innovation Solution
A data driving device with a first communication unit for receiving and restoring clock signals, a second communication unit for transmitting and receiving EQ test information, and a controlling unit to optimize the equalizer settings based on evaluation results, allowing for efficient data communication by utilizing both main and auxiliary communication lines and optimizing equalizer settings automatically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the resolution and frame rate of the display panel are increased, then the image quality and refresh performance are improved, but the amount of image data to be transmitted increases, requiring higher data communication speed
Solution Approach 1:
The patent divides the communication system into two separate communication lines: a main communication line for transmitting image data and an auxiliary communication line for transmitting control signals and status information. This segmentation allows independent optimization of each communication channel, enabling the main line to focus on high-speed data transmission while the auxiliary line handles control functions, thus resolving the bottleneck caused by increased image data volume from high resolution and frame rate requirements.
2Productivity
If only a main communication line is used for data transmission, then the communication protocol is simple, but the efficiency of data communication is insufficient when large amounts of image data need to be transmitted
Solution Approach 1:
The patent introduces an auxiliary communication line as an intermediary channel that works in conjunction with the main communication line. This auxiliary line transmits control signals, equalizer test information, and status feedback, enabling more efficient data transmission protocols on the main line without overwhelming it. The intermediary auxiliary line handles signaling functions, allowing the main line to operate at optimal speeds for large image data transmission.
3Reliability
If the equalizer settings are manually configured, then the implementation is simple, but the reception performance cannot be optimized for different communication conditions
Solution Approach 1:
The patent implements a feedback mechanism where the receiving device evaluates reception performance by analyzing received signals and transmits equalizer test information back through the auxiliary communication line to the transmitting device. The transmitting device adjusts equalizer settings based on this feedback and retransmits test signals until optimal reception performance is achieved. This automated feedback loop optimizes equalizer settings for different communication conditions without requiring manual configuration.
Solution Approach 2:
The system performs self-optimization of equalizer settings through automated evaluation and adjustment processes. The receiving device autonomously evaluates reception performance using received test signals and generates appropriate feedback, while the transmitting device automatically adjusts equalizer parameters based on this feedback. This self-service mechanism eliminates the need for manual equalizer configuration and adapts to varying communication conditions dynamically.
4Loss of time
If data communication is established before clock synchronization is verified, then the system startup is faster, but the communication reliability is compromised
Solution Approach 1:
The patent implements preliminary clock synchronization verification through the auxiliary communication line before enabling full data transmission on the main communication line. The transmitting device transmits clock training signals and the receiving device verifies synchronization status, with results communicated back through the auxiliary line. Only after successful clock synchronization is confirmed does the system proceed to normal high-speed image data transmission, ensuring communication reliability while minimizing delays through efficient preliminary verification.
Data Source
AI summary
The present embodiment relates to a technique for speeding up data communication in a display device and provides a technique for transmitting and receiving at least some information using a communication line indicating a clock training state and for automatically optimizing the configuration of an equalizer in a receiving device.