Dual Communication System for Display Data Transmission
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Solution Overview
Problem
As display panels become higher resolution, the increased number of pixels and frame rates lead to a significant increase in image data, necessitating faster data communication speeds to process and transmit image data efficiently.
Innovation Solution
The implementation of a dual communication system with a first communication unit for high-speed data transmission and a second communication unit for low-speed data transmission, using different data rates and protocols, including scramble and Limited Run Length Code (LRLC) encoding, to optimize data transfer between a data processing device and a data driving device, with feedback mechanisms for clock and link training.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-speed data communication is implemented to handle increased image data from higher resolution displays, then data transmission speed is improved, but communication reliability deteriorates due to signal integrity issues at high frequencies
Solution Approach 1:
The patent performs clock training and link training before actual image data transmission. The data driving device adjusts clock timing and the data processing device adjusts equalizer coefficients in advance to optimize the communication channel, ensuring reliable high-speed data transmission before it begins
Solution Approach 2:
The patent implements feedback mechanisms where the data driving device sends clock training results and link training results back to the data processing device. The data processing device uses this feedback to adjust equalizer coefficients and optimize signal reception, improving communication reliability at high speeds
2Reliability
If dual communication modes are implemented for clock training and data transmission, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines clock training and link training functions into the data driving device and data processing device respectively. The data driving device integrates clock signal generation and timing adjustment, while the data processing device integrates equalization and data reception, reducing overall system complexity through functional integration
Solution Approach 2:
The communication lines serve multiple functions: they transmit both clock signals for training and image data for display. The data driving device and data processing device perform multiple functions including clock generation, equalization, data transmission, and reception, reducing the need for separate dedicated components
Data Source
AI summary
An embodiment provides a technology for performing both high-speed data communication and low-speed data communication and transmitting a configuration value for the high-speed data communication through the low-speed data communication.